/* ==========================================================================
   Design Tokens — Absensi Sekolah v2
   Color System: Ocean Blue + Teal (Stripe/Supabase inspired)
   Light + Dark dual-mode
   ========================================================================== */

:root {
  /* ---------- Brand: Ocean Blue (primary) ---------- */
  --brand-50:  #eff6ff;
  --brand-100: #dbeafe;
  --brand-200: #bfdbfe;
  --brand-300: #93c5fd;
  --brand-400: #60a5fa;
  --brand-500: #3b82f6;
  --brand-600: #2563eb;
  --brand-700: #1d4ed8;
  --brand-800: #1e40af;
  --brand-900: #1e3a8a;
  --brand-950: #172554;

  /* ---------- Accent: Teal (secondary) ---------- */
  --accent-50:  #f0fdfa;
  --accent-100: #ccfbf1;
  --accent-200: #99f6e4;
  --accent-300: #5eead4;
  --accent-400: #2dd4bf;
  --accent-500: #14b8a6;
  --accent-600: #0d9488;
  --accent-700: #0f766e;
  --accent-800: #115e59;
  --accent-900: #134e4a;
  --accent-950: #042f2e;

  /* ---------- Neutral / Gray ---------- */
  --gray-0:   #ffffff;
  --gray-50:  #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --gray-950: #020617;

  /* ---------- Semantic: Success / Warning / Danger / Info ---------- */
  --success-50:  #f0fdf4;
  --success-100: #dcfce7;
  --success-500: #22c55e;
  --success-600: #16a34a;
  --success-700: #15803d;

  --warning-50:  #fffbeb;
  --warning-100: #fef3c7;
  --warning-500: #f59e0b;
  --warning-600: #d97706;
  --warning-700: #b45309;

  --danger-50:  #fef2f2;
  --danger-100: #fee2e2;
  --danger-500: #ef4444;
  --danger-600: #dc2626;
  --danger-700: #b91c1c;

  --info-50:  #ecfeff;
  --info-100: #cffafe;
  --info-500: #06b6d4;
  --info-600: #0891b2;
  --info-700: #0e7490;

  /* ---------- Typography ---------- */
  --font-sans: 'Inter', 'Inter Fallback', ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco,
    Consolas, 'Liberation Mono', 'Courier New', monospace;
  --font-display: 'Inter', 'Inter Fallback', system-ui, sans-serif;

  /* Fluid type scale — clamp(min, preferred, max) */
  --fs-xs:   0.75rem;       /* 12 */
  --fs-sm:   0.875rem;      /* 14 */
  --fs-base: 1rem;          /* 16 */
  --fs-md:   1.0625rem;     /* 17 */
  --fs-lg:   1.125rem;      /* 18 */
  --fs-xl:   1.25rem;       /* 20 */
  --fs-2xl:  1.5rem;        /* 24 */
  --fs-3xl:  clamp(1.75rem, 1.5rem + 1.25vw, 2.25rem);  /* 28–36 */
  --fs-4xl:  clamp(2rem,    1.75rem + 1.5vw, 3rem);     /* 32–48 */
  --fs-5xl:  clamp(2.5rem,  2rem + 2vw, 3.75rem);       /* 40–60 */

  --lh-tight:  1.2;
  --lh-snug:   1.35;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;

  --fw-regular:  400;
  --fw-medium:   500;
  --fw-semibold: 600;
  --fw-bold:     700;

  --tracking-tight: -0.02em;
  --tracking-snug:  -0.01em;
  --tracking-normal: 0;
  --tracking-wide:   0.02em;

  /* ---------- Spacing (4px grid) ---------- */
  --sp-0:   0;
  --sp-px:  1px;
  --sp-0_5: 0.125rem;   /* 2 */
  --sp-1:   0.25rem;    /* 4 */
  --sp-1_5: 0.375rem;   /* 6 */
  --sp-2:   0.5rem;     /* 8 */
  --sp-2_5: 0.625rem;   /* 10 */
  --sp-3:   0.75rem;    /* 12 */
  --sp-4:   1rem;       /* 16 */
  --sp-5:   1.25rem;    /* 20 */
  --sp-6:   1.5rem;     /* 24 */
  --sp-7:   1.75rem;    /* 28 */
  --sp-8:   2rem;       /* 32 */
  --sp-10:  2.5rem;     /* 40 */
  --sp-12:  3rem;       /* 48 */
  --sp-14:  3.5rem;     /* 56 */
  --sp-16:  4rem;       /* 64 */
  --sp-20:  5rem;       /* 80 */
  --sp-24:  6rem;       /* 96 */
  --sp-32:  8rem;       /* 128 */

  /* ---------- Radii ---------- */
  --r-none: 0;
  --r-sm:   0.25rem;    /* 4 */
  --r-md:   0.5rem;     /* 8 */
  --r-lg:   0.75rem;    /* 12 */
  --r-xl:   1rem;       /* 16 */
  --r-2xl:  1.25rem;    /* 20 */
  --r-3xl:  1.5rem;     /* 24 */
  --r-full: 9999px;

  /* ---------- Borders ---------- */
  --bw-0: 0;
  --bw-1: 1px;
  --bw-2: 2px;
  --bw-4: 4px;

  /* ---------- Transitions ---------- */
  --dur-fast:   120ms;
  --dur-base:   180ms;
  --dur-slow:   240ms;
  --dur-slower: 320ms;
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ---------- Z-index layers ---------- */
  --z-base:      0;
  --z-raised:    10;
  --z-dropdown:  1000;
  --z-sticky:    1020;
  --z-sidebar:   1050;
  --z-backdrop:  1040;
  --z-modal:     1050;
  --z-popover:   1060;
  --z-toast:     1080;
  --z-tooltip:   1090;

  /* ---------- Layout metrics ---------- */
  --sidebar-w:         272px;
  --sidebar-w-collapsed: 72px;
  --topbar-h:          64px;
  --content-max:       1440px;
  --page-px:           clamp(1rem, 2vw, 2rem);
  --page-py:           clamp(1rem, 1.5vw, 1.75rem);

  /* ---------- Focus ring ---------- */
  --ring-color: color-mix(in srgb, var(--brand-500) 45%, transparent);
  --ring-offset: var(--surface-1);
  --ring-width: 3px;
}

/* ==========================================================================
   LIGHT THEME (default)
   ========================================================================== */
:root,
[data-theme="light"] {
  color-scheme: light;

  /* Surfaces (depth hierarchy) */
  --surface-app: var(--gray-50);        /* app background */
  --surface-0:   #ffffff;                /* sunken / canvas */
  --surface-1:   #ffffff;                /* card */
  --surface-2:   #ffffff;                /* elevated card */
  --surface-3:   #ffffff;                /* menu/dropdown */
  --surface-inverse: var(--gray-900);

  /* Text */
  --text-primary:   var(--gray-900);
  --text-secondary: var(--gray-600);
  --text-tertiary:  var(--gray-500);
  --text-muted:     var(--gray-400);
  --text-inverse:   #ffffff;
  --text-link:      var(--brand-600);
  --text-link-hover: var(--brand-700);

  /* Borders */
  --border-subtle: var(--gray-200);
  --border-base:   var(--gray-200);
  --border-strong: var(--gray-300);

  /* Surface states */
  --state-hover-bg:  color-mix(in srgb, var(--gray-900) 4%, transparent);
  --state-active-bg: color-mix(in srgb, var(--gray-900) 8%, transparent);
  --state-selected-bg: color-mix(in srgb, var(--brand-500) 10%, transparent);

  /* Brand tinted surfaces */
  --brand-surface:        color-mix(in srgb, var(--brand-500) 8%, var(--surface-1));
  --brand-surface-strong: color-mix(in srgb, var(--brand-500) 16%, var(--surface-1));
  --accent-surface:       color-mix(in srgb, var(--accent-500) 8%, var(--surface-1));

  /* Semantic fills */
  --success-fg: var(--success-700);
  --success-bg: var(--success-50);
  --warning-fg: var(--warning-700);
  --warning-bg: var(--warning-50);
  --danger-fg:  var(--danger-700);
  --danger-bg:  var(--danger-50);
  --info-fg:    var(--info-700);
  --info-bg:    var(--info-50);

  /* Shadows — layered, realistic */
  --shadow-xs:  0 1px 2px 0 rgb(15 23 42 / 0.05);
  --shadow-sm:  0 1px 2px 0 rgb(15 23 42 / 0.06),
                0 1px 3px 0 rgb(15 23 42 / 0.04);
  --shadow-md:  0 4px 8px -2px rgb(15 23 42 / 0.08),
                0 2px 4px -2px rgb(15 23 42 / 0.04);
  --shadow-lg:  0 12px 24px -6px rgb(15 23 42 / 0.12),
                0 4px 8px -4px rgb(15 23 42 / 0.06);
  --shadow-xl:  0 24px 48px -12px rgb(15 23 42 / 0.18),
                0 8px 16px -8px rgb(15 23 42 / 0.08);
  --shadow-2xl: 0 36px 72px -18px rgb(15 23 42 / 0.24);

  --shadow-inset: inset 0 1px 2px 0 rgb(15 23 42 / 0.06);
  --shadow-ring:  0 0 0 var(--ring-width) var(--ring-color);

  /* Gradients — signature brand */
  --gradient-brand:     linear-gradient(135deg, var(--brand-600) 0%, var(--brand-500) 50%, var(--accent-500) 100%);
  --gradient-brand-soft: linear-gradient(135deg, var(--brand-50) 0%, var(--accent-50) 100%);
  --gradient-mesh:      radial-gradient(at 20% 10%, color-mix(in srgb, var(--brand-500) 14%, transparent) 0px, transparent 50%),
                         radial-gradient(at 80% 80%, color-mix(in srgb, var(--accent-500) 12%, transparent) 0px, transparent 50%),
                         radial-gradient(at 90% 10%, color-mix(in srgb, var(--brand-300) 10%, transparent) 0px, transparent 50%);
  --gradient-glass:     linear-gradient(135deg, rgb(255 255 255 / 0.7), rgb(255 255 255 / 0.4));

  /* Scrollbar */
  --scrollbar-track: transparent;
  --scrollbar-thumb: var(--gray-300);
  --scrollbar-thumb-hover: var(--gray-400);
}

/* ==========================================================================
   DARK THEME
   ========================================================================== */
[data-theme="dark"] {
  color-scheme: dark;

  /* Surfaces */
  --surface-app: #0a0f1e;
  --surface-0:   #0f172a;
  --surface-1:   #131a2e;
  --surface-2:   #1a2340;
  --surface-3:   #212c4d;
  --surface-inverse: var(--gray-50);

  /* Text */
  --text-primary:   #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-tertiary:  #94a3b8;
  --text-muted:     #64748b;
  --text-inverse:   var(--gray-900);
  --text-link:      var(--brand-400);
  --text-link-hover: var(--brand-300);

  /* Borders */
  --border-subtle: color-mix(in srgb, var(--gray-0) 6%, transparent);
  --border-base:   color-mix(in srgb, var(--gray-0) 10%, transparent);
  --border-strong: color-mix(in srgb, var(--gray-0) 16%, transparent);

  /* States */
  --state-hover-bg:   color-mix(in srgb, var(--gray-0) 6%, transparent);
  --state-active-bg:  color-mix(in srgb, var(--gray-0) 10%, transparent);
  --state-selected-bg: color-mix(in srgb, var(--brand-400) 16%, transparent);

  /* Brand tinted surfaces */
  --brand-surface:        color-mix(in srgb, var(--brand-500) 18%, var(--surface-1));
  --brand-surface-strong: color-mix(in srgb, var(--brand-500) 28%, var(--surface-1));
  --accent-surface:       color-mix(in srgb, var(--accent-500) 18%, var(--surface-1));

  /* Semantic surfaces — darker bg, lighter fg */
  --success-fg: #86efac;
  --success-bg: color-mix(in srgb, var(--success-500) 16%, transparent);
  --warning-fg: #fcd34d;
  --warning-bg: color-mix(in srgb, var(--warning-500) 18%, transparent);
  --danger-fg:  #fca5a5;
  --danger-bg:  color-mix(in srgb, var(--danger-500) 16%, transparent);
  --info-fg:    #67e8f9;
  --info-bg:    color-mix(in srgb, var(--info-500) 16%, transparent);

  /* Shadows — stronger, black-based */
  --shadow-xs:  0 1px 2px 0 rgb(0 0 0 / 0.25);
  --shadow-sm:  0 1px 3px 0 rgb(0 0 0 / 0.3),
                0 1px 2px 0 rgb(0 0 0 / 0.24);
  --shadow-md:  0 4px 10px -2px rgb(0 0 0 / 0.4),
                0 2px 4px -2px rgb(0 0 0 / 0.24);
  --shadow-lg:  0 12px 28px -6px rgb(0 0 0 / 0.55),
                0 4px 10px -4px rgb(0 0 0 / 0.3);
  --shadow-xl:  0 24px 56px -12px rgb(0 0 0 / 0.7);
  --shadow-2xl: 0 36px 80px -18px rgb(0 0 0 / 0.8);

  --shadow-inset: inset 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-ring:  0 0 0 var(--ring-width) var(--ring-color);

  /* Gradients */
  --gradient-brand:      linear-gradient(135deg, var(--brand-500) 0%, var(--brand-400) 50%, var(--accent-400) 100%);
  --gradient-brand-soft: linear-gradient(135deg,
                           color-mix(in srgb, var(--brand-500) 15%, var(--surface-0)) 0%,
                           color-mix(in srgb, var(--accent-500) 12%, var(--surface-0)) 100%);
  --gradient-mesh:       radial-gradient(at 20% 10%, color-mix(in srgb, var(--brand-500) 28%, transparent) 0px, transparent 50%),
                          radial-gradient(at 80% 80%, color-mix(in srgb, var(--accent-500) 22%, transparent) 0px, transparent 50%),
                          radial-gradient(at 90% 10%, color-mix(in srgb, var(--brand-400) 16%, transparent) 0px, transparent 50%);
  --gradient-glass:      linear-gradient(135deg, rgb(255 255 255 / 0.05), rgb(255 255 255 / 0.02));

  /* Scrollbar */
  --scrollbar-track: transparent;
  --scrollbar-thumb: color-mix(in srgb, var(--gray-0) 12%, transparent);
  --scrollbar-thumb-hover: color-mix(in srgb, var(--gray-0) 18%, transparent);
}

/* System preference fallback when no explicit toggle */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    color-scheme: dark;

    --surface-app: #0a0f1e;
    --surface-0:   #0f172a;
    --surface-1:   #131a2e;
    --surface-2:   #1a2340;
    --surface-3:   #212c4d;
    --surface-inverse: var(--gray-50);

    --text-primary:   #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary:  #94a3b8;
    --text-muted:     #64748b;
    --text-inverse:   var(--gray-900);
    --text-link:      var(--brand-400);
    --text-link-hover: var(--brand-300);

    --border-subtle: color-mix(in srgb, #ffffff 6%, transparent);
    --border-base:   color-mix(in srgb, #ffffff 10%, transparent);
    --border-strong: color-mix(in srgb, #ffffff 16%, transparent);
  }
}
/* ==========================================================================
   Base — Modern CSS reset + typography + element defaults
   Built on top of tokens.css
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  scroll-behavior: smooth;
  font-size: 16px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  font-weight: var(--fw-regular);
  line-height: var(--lh-normal);
  letter-spacing: var(--tracking-normal);
  color: var(--text-primary);
  background-color: var(--surface-app);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11", "ss01";
  font-variant-ligatures: common-ligatures;
  overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

svg {
  flex-shrink: 0;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

p,
h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

/* Typography scale */
h1, .h1 {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  font-family: var(--font-display);
}
h2, .h2 {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  font-family: var(--font-display);
}
h3, .h3 {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-snug);
}
h4, .h4 {
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
}
h5, .h5 {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
}
h6, .h6 {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
}

p {
  line-height: var(--lh-normal);
  color: var(--text-primary);
}

.text-muted {
  color: var(--text-tertiary);
}

.lead {
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  color: var(--text-secondary);
}

small,
.small {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
}

.eyebrow {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
}

/* Links */
a {
  color: var(--text-link);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
a:hover {
  color: var(--text-link-hover);
}
a:focus-visible {
  outline: none;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Selection */
::selection {
  background: color-mix(in srgb, var(--brand-500) 26%, transparent);
  color: var(--text-primary);
}

/* Focus ring for keyboard users */
:focus-visible {
  outline: none;
  box-shadow: 0 0 0 var(--ring-width) var(--ring-color);
  border-radius: var(--r-md);
  transition: box-shadow var(--dur-fast) var(--ease-out);
}

/* HR */
hr {
  border: none;
  border-top: 1px solid var(--border-base);
  margin: var(--sp-6) 0;
}

/* Code / Mono */
code,
kbd,
pre,
samp {
  font-family: var(--font-mono);
  font-size: 0.925em;
}

code {
  padding: 0.15em 0.35em;
  background: color-mix(in srgb, var(--brand-500) 10%, transparent);
  border-radius: var(--r-sm);
  color: var(--text-primary);
}

kbd {
  padding: 0.15em 0.4em;
  background: var(--surface-2);
  border: 1px solid var(--border-base);
  border-radius: var(--r-sm);
  box-shadow: 0 1px 0 var(--border-base);
  font-size: 0.8em;
  color: var(--text-secondary);
}

/* Lists (reset for app context) */
ul,
ol {
  padding-left: 1.25rem;
}
.list-reset {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* Images/media */
img {
  height: auto;
}

/* Scrollbar custom */
*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
*::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: var(--r-full);
  border: 2px solid var(--surface-app);
}
*::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}

/* Accessibility helpers */
.visually-hidden,
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  padding: var(--sp-2) var(--sp-4);
  background: var(--brand-600);
  color: #ffffff;
  border-radius: var(--r-md);
  font-weight: var(--fw-semibold);
  z-index: var(--z-tooltip);
  transition: top var(--dur-base) var(--ease-out);
}
.skip-link:focus {
  top: 1rem;
  color: #ffffff;
}

/* Prevent layout shift for no-JS Lucide icons */
[data-lucide] {
  width: 1.125rem;
  height: 1.125rem;
  stroke-width: 2;
}

/* Selection for images: disable during drag */
.no-drag {
  -webkit-user-drag: none;
  user-select: none;
}
/* ==========================================================================
   Layout — App shell, sidebar, topbar, auth layout
   ========================================================================== */

/* ==========================================================================
   APP SHELL (authenticated)
   ========================================================================== */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "sidebar topbar"
    "sidebar main";
  min-height: 100dvh;
  background: var(--surface-app);
}

@media (max-width: 1023.98px) {
  .app-shell {
    grid-template-columns: 1fr;
    grid-template-areas:
      "topbar"
      "main";
  }
}

.app-sidebar {
  grid-area: sidebar;
  position: sticky;
  top: 0;
  height: 100dvh;
  z-index: var(--z-sidebar);
}

.app-topbar {
  grid-area: topbar;
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.app-main {
  grid-area: main;
  min-width: 0; /* prevent overflow */
  padding: var(--page-py) var(--page-px) var(--sp-16);
  max-width: 100%;
}

.page-container {
  max-width: var(--content-max);
  margin: 0 auto;
}

/* Page header */
.page-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-5);
  border-bottom: 1px solid var(--border-subtle);
}
.page-header__titles {
  min-width: 0;
}
.page-header__eyebrow {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--brand-600);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}
[data-theme="dark"] .page-header__eyebrow { color: var(--brand-300); }
.page-header__title {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-tight);
  line-height: 1.15;
  color: var(--text-primary);
  margin: 0;
}
.page-header__subtitle {
  font-size: var(--fs-md);
  color: var(--text-tertiary);
  margin-top: 0.375rem;
}
.page-header__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-2);
}

/* Section */
.section {
  margin-bottom: var(--sp-8);
}
.section__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}
.section__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-snug);
}
.section__subtitle {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  margin-top: 0.125rem;
}

/* ==========================================================================
   SIDEBAR
   ========================================================================== */
.sidebar {
  display: flex;
  flex-direction: column;
  width: var(--sidebar-w);
  height: 100dvh;
  background: var(--surface-1);
  border-right: 1px solid var(--border-subtle);
  overflow: hidden;
  transition: transform var(--dur-slow) var(--ease-out);
}

.sidebar__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 0 var(--sp-5);
  height: var(--topbar-h);
  border-bottom: 1px solid var(--border-subtle);
  text-decoration: none;
  color: var(--text-primary);
  flex-shrink: 0;
}
.sidebar__brand:hover { color: var(--text-primary); }

.sidebar__logo {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--r-lg);
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  flex-shrink: 0;
  box-shadow: 0 4px 12px -2px color-mix(in srgb, var(--brand-600) 40%, transparent);
}
.sidebar__logo [data-lucide] { width: 1.25rem; height: 1.25rem; stroke-width: 2.25; }

.sidebar__brand-text {
  min-width: 0;
  line-height: 1.15;
}
.sidebar__brand-title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-snug);
  color: var(--text-primary);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar__brand-sub {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--sp-3) var(--sp-2_5);
  scrollbar-width: thin;
}
.sidebar__section {
  margin-bottom: var(--sp-4);
}
.sidebar__label {
  padding: var(--sp-2) var(--sp-3) var(--sp-1);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.sidebar__item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 0.6rem 0.75rem;
  margin: 2px 0;
  border-radius: var(--r-lg);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  line-height: 1.25;
  position: relative;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}
.sidebar__item [data-lucide] {
  width: 1.125rem;
  height: 1.125rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
  transition: color var(--dur-fast) var(--ease-out);
}
.sidebar__item:hover {
  background: var(--state-hover-bg);
  color: var(--text-primary);
}
.sidebar__item:hover [data-lucide] { color: var(--text-secondary); }

.sidebar__item.is-active,
.sidebar__item[aria-current="page"] {
  background: var(--brand-surface);
  color: var(--brand-700);
  font-weight: var(--fw-semibold);
}
[data-theme="dark"] .sidebar__item.is-active,
[data-theme="dark"] .sidebar__item[aria-current="page"] {
  color: var(--brand-200);
}
.sidebar__item.is-active [data-lucide],
.sidebar__item[aria-current="page"] [data-lucide] {
  color: var(--brand-600);
}
[data-theme="dark"] .sidebar__item.is-active [data-lucide],
[data-theme="dark"] .sidebar__item[aria-current="page"] [data-lucide] {
  color: var(--brand-300);
}
.sidebar__item.is-active::before {
  content: "";
  position: absolute;
  left: -10px;
  top: 25%;
  bottom: 25%;
  width: 3px;
  background: var(--brand-600);
  border-radius: var(--r-full);
}

.sidebar__item-label {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar__badge {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  padding: 0.1rem 0.4rem;
  border-radius: var(--r-full);
  background: var(--brand-surface);
  color: var(--brand-700);
}

.sidebar__footer {
  padding: var(--sp-3) var(--sp-2_5);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}
.sidebar__user {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-lg);
  background: var(--surface-0);
  border: 1px solid var(--border-subtle);
}
.sidebar__user-info {
  min-width: 0;
  line-height: 1.2;
  flex: 1;
}
.sidebar__user-name {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar__user-role {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  display: block;
}

/* Sidebar mobile drawer */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--gray-950) 50%, transparent);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  z-index: var(--z-backdrop);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-slow) var(--ease-out);
}
.sidebar-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 1023.98px) {
  .app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100dvh;
    transform: translateX(-100%);
    transition: transform var(--dur-slow) var(--ease-out);
    width: min(80vw, 320px);
    box-shadow: var(--shadow-xl);
    z-index: var(--z-sidebar);
    visibility: hidden;
  }
  .app-sidebar.is-open {
    transform: translateX(0);
    visibility: visible;
  }
  .sidebar { width: 100%; }
}

/* ==========================================================================
   TOPBAR
   ========================================================================== */
.topbar {
  height: var(--topbar-h);
  background: color-mix(in srgb, var(--surface-1) 85%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 0 var(--page-px);
}

.topbar__toggle {
  display: inline-flex;
}

.topbar__title {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  margin: 0;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar__search {
  flex: 1;
  max-width: 28rem;
  margin: 0 var(--sp-3);
  position: relative;
}
.topbar__search .form-control {
  padding-left: 2.5rem;
  background: var(--surface-0);
  border-color: var(--border-subtle);
}
.topbar__search .form-control:focus {
  background: var(--surface-1);
}
.topbar__search [data-lucide] {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1rem;
  height: 1rem;
  color: var(--text-muted);
  pointer-events: none;
}
.topbar__search kbd {
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.7rem;
  pointer-events: none;
}
@media (max-width: 767.98px) {
  .topbar__search { display: none; }
}

.topbar__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.topbar__divider {
  width: 1px;
  height: 1.5rem;
  background: var(--border-base);
  margin: 0 var(--sp-1);
}

.topbar-profile {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.3rem 0.4rem 0.3rem 0.625rem;
  border-radius: var(--r-full);
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}
.topbar-profile:hover {
  background: var(--state-hover-bg);
  border-color: var(--border-subtle);
}
.topbar-profile__name {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  line-height: 1.1;
}
.topbar-profile__role {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
  line-height: 1.1;
}
@media (max-width: 639.98px) {
  .topbar-profile__meta { display: none; }
}

.topbar-relative { position: relative; }

/* ==========================================================================
   AUTH LAYOUT — split panel
   ========================================================================== */
.auth-shell {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: 1fr;
  background: var(--surface-app);
}
@media (min-width: 1024px) {
  .auth-shell {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.auth-hero {
  display: none;
  position: relative;
  overflow: hidden;
  background: var(--gradient-brand);
  color: #ffffff;
  padding: var(--sp-12);
}
@media (min-width: 1024px) {
  .auth-hero { display: flex; flex-direction: column; }
}
.auth-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  opacity: 0.9;
  pointer-events: none;
  mix-blend-mode: soft-light;
}
.auth-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top left, rgb(255 255 255 / 0.12), transparent 50%),
    radial-gradient(ellipse at bottom right, rgb(0 0 0 / 0.3), transparent 60%);
  pointer-events: none;
}
.auth-hero > * { position: relative; z-index: 1; }

.auth-hero__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-weight: var(--fw-bold);
  font-size: var(--fs-lg);
}
.auth-hero__brand-mark {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--r-lg);
  background: rgb(255 255 255 / 0.15);
  border: 1px solid rgb(255 255 255 / 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.auth-hero__brand-mark [data-lucide] {
  width: 1.375rem;
  height: 1.375rem;
}

.auth-hero__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 30rem;
  margin-top: var(--sp-10);
}
.auth-hero__title {
  font-size: var(--fs-4xl);
  font-weight: var(--fw-bold);
  line-height: 1.1;
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--sp-5);
  color: #ffffff;
}
.auth-hero__description {
  font-size: var(--fs-lg);
  line-height: 1.6;
  color: color-mix(in srgb, #ffffff 88%, transparent);
  margin-bottom: var(--sp-8);
}
.auth-hero__features {
  display: grid;
  gap: var(--sp-3);
  list-style: none;
  padding: 0;
  margin: 0;
}
.auth-hero__feature {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: rgb(255 255 255 / 0.08);
  border: 1px solid rgb(255 255 255 / 0.15);
  border-radius: var(--r-lg);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  font-size: var(--fs-sm);
}
.auth-hero__feature-icon {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: var(--r-md);
  background: rgb(255 255 255 / 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.auth-hero__feature-icon [data-lucide] {
  width: 0.95rem;
  height: 0.95rem;
}

.auth-hero__footer {
  margin-top: auto;
  padding-top: var(--sp-8);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-sm);
  color: color-mix(in srgb, #ffffff 75%, transparent);
}

.auth-main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--sp-6) var(--sp-4);
  min-height: 100dvh;
  position: relative;
}
@media (min-width: 1024px) {
  .auth-main {
    padding: var(--sp-10) var(--sp-8);
  }
}

.auth-main__container {
  width: 100%;
  max-width: 26rem;
  margin: 0 auto;
}

.auth-main__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-8);
}
.auth-main__brand-mobile {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-weight: var(--fw-bold);
  color: var(--text-primary);
}
.auth-main__brand-mobile .sidebar__logo {
  width: 2rem;
  height: 2rem;
}
@media (min-width: 1024px) {
  .auth-main__brand-mobile { visibility: hidden; }
}

.auth-main__title {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 0.5rem;
}
.auth-main__subtitle {
  font-size: var(--fs-md);
  color: var(--text-tertiary);
  margin-bottom: var(--sp-8);
}

.auth-main__footer {
  margin-top: var(--sp-10);
  text-align: center;
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
}

/* ==========================================================================
   PAGE BACKGROUND (optional ambient gradient for special pages)
   ========================================================================== */
.page-ambient {
  position: relative;
}
.page-ambient::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-mesh);
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
  mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 70%);
}
.page-ambient > * { position: relative; z-index: 1; }

/* ==========================================================================
   GRID HELPERS (layout-specific)
   ========================================================================== */
.grid {
  display: grid;
  gap: var(--sp-5);
}
.grid-1  { grid-template-columns: 1fr; }
.grid-2  { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3  { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4  { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 1199.98px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 767.98px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.grid-auto-fit {
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}
.grid-auto-fit-lg {
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
}

/* Dashboard-specific split */
.grid-dashboard-main {
  display: grid;
  gap: var(--sp-5);
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);
}
@media (max-width: 1199.98px) {
  .grid-dashboard-main { grid-template-columns: 1fr; }
}

/* ==========================================================================
   CHART CONTAINER
   ========================================================================== */
.chart-container {
  position: relative;
  height: 320px;
  width: 100%;
}
.chart-container--sm { height: 200px; }
.chart-container--lg { height: 420px; }

/* ==========================================================================
   EMPTY STATE
   ========================================================================== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--sp-10) var(--sp-6);
  gap: var(--sp-3);
}
.empty-state__illustration {
  width: 10rem;
  max-width: 100%;
  margin-bottom: var(--sp-2);
  opacity: 0.9;
}
.empty-state__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
}
.empty-state__body {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  max-width: 28rem;
}
.empty-state__action {
  margin-top: var(--sp-4);
}
/* ==========================================================================
   Components — Premium UI components (Stripe/Supabase-inspired)
   ========================================================================== */

/* ==========================================================================
   BUTTON
   ========================================================================== */
.btn {
  --btn-pad-y: 0.625rem;
  --btn-pad-x: 1.125rem;
  --btn-gap: 0.5rem;
  --btn-fs: var(--fs-sm);
  --btn-fw: var(--fw-semibold);
  --btn-radius: var(--r-lg);
  --btn-border: transparent;
  --btn-bg: transparent;
  --btn-bg-hover: transparent;
  --btn-bg-active: transparent;
  --btn-fg: var(--text-primary);
  --btn-fg-hover: var(--text-primary);
  --btn-shadow: none;
  --btn-shadow-hover: none;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--btn-gap);
  padding: var(--btn-pad-y) var(--btn-pad-x);
  border-radius: var(--btn-radius);
  border: 1px solid var(--btn-border);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: inherit;
  font-size: var(--btn-fs);
  font-weight: var(--btn-fw);
  line-height: 1.25;
  letter-spacing: var(--tracking-snug);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  box-shadow: var(--btn-shadow);
  transition:
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.btn:hover {
  background: var(--btn-bg-hover);
  color: var(--btn-fg-hover);
  box-shadow: var(--btn-shadow-hover);
}

.btn:active {
  background: var(--btn-bg-active);
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--btn-shadow), 0 0 0 var(--ring-width) var(--ring-color);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

.btn [data-lucide] {
  width: 1em;
  height: 1em;
  stroke-width: 2.25;
}

/* Variants */
.btn-primary {
  --btn-bg: var(--brand-600);
  --btn-bg-hover: var(--brand-700);
  --btn-bg-active: var(--brand-800);
  --btn-fg: #ffffff;
  --btn-fg-hover: #ffffff;
  --btn-shadow: 0 1px 2px 0 color-mix(in srgb, var(--brand-900) 24%, transparent);
  --btn-shadow-hover: 0 4px 12px -2px color-mix(in srgb, var(--brand-600) 40%, transparent);
}

.btn-gradient {
  --btn-bg: var(--gradient-brand);
  --btn-bg-hover: var(--gradient-brand);
  --btn-fg: #ffffff;
  --btn-fg-hover: #ffffff;
  --btn-shadow: 0 4px 14px -2px color-mix(in srgb, var(--brand-600) 35%, transparent);
  --btn-shadow-hover: 0 8px 22px -4px color-mix(in srgb, var(--brand-600) 55%, transparent);
  position: relative;
}
.btn-gradient:hover {
  filter: brightness(1.05);
}

.btn-secondary {
  --btn-bg: var(--surface-1);
  --btn-bg-hover: var(--surface-2);
  --btn-fg: var(--text-primary);
  --btn-fg-hover: var(--text-primary);
  --btn-border: var(--border-base);
  --btn-shadow: var(--shadow-xs);
  --btn-shadow-hover: var(--shadow-sm);
}

.btn-ghost {
  --btn-bg: transparent;
  --btn-bg-hover: var(--state-hover-bg);
  --btn-bg-active: var(--state-active-bg);
  --btn-fg: var(--text-secondary);
  --btn-fg-hover: var(--text-primary);
}

.btn-soft {
  --btn-bg: var(--brand-surface);
  --btn-bg-hover: var(--brand-surface-strong);
  --btn-fg: var(--brand-700);
  --btn-fg-hover: var(--brand-700);
}
[data-theme="dark"] .btn-soft {
  --btn-fg: var(--brand-300);
  --btn-fg-hover: var(--brand-200);
}

.btn-success {
  --btn-bg: var(--success-600);
  --btn-bg-hover: var(--success-700);
  --btn-fg: #ffffff;
  --btn-fg-hover: #ffffff;
}
.btn-danger {
  --btn-bg: var(--danger-600);
  --btn-bg-hover: var(--danger-700);
  --btn-fg: #ffffff;
  --btn-fg-hover: #ffffff;
  --btn-shadow-hover: 0 4px 12px -2px color-mix(in srgb, var(--danger-600) 40%, transparent);
}
.btn-warning {
  --btn-bg: var(--warning-500);
  --btn-bg-hover: var(--warning-600);
  --btn-fg: #ffffff;
  --btn-fg-hover: #ffffff;
}
.btn-info {
  --btn-bg: var(--info-600);
  --btn-bg-hover: var(--info-700);
  --btn-fg: #ffffff;
  --btn-fg-hover: #ffffff;
}

/* Sizes */
.btn-sm {
  --btn-pad-y: 0.4rem;
  --btn-pad-x: 0.75rem;
  --btn-fs: var(--fs-xs);
  --btn-radius: var(--r-md);
}
.btn-md {
  --btn-pad-y: 0.625rem;
  --btn-pad-x: 1.125rem;
  --btn-fs: var(--fs-sm);
}
.btn-lg {
  --btn-pad-y: 0.85rem;
  --btn-pad-x: 1.5rem;
  --btn-fs: var(--fs-base);
  --btn-radius: var(--r-xl);
}
.btn-xl {
  --btn-pad-y: 1rem;
  --btn-pad-x: 1.75rem;
  --btn-fs: var(--fs-md);
  --btn-radius: var(--r-xl);
}

.btn-block {
  width: 100%;
}

.btn-icon {
  padding: 0.5rem;
  width: 2.5rem;
  height: 2.5rem;
}
.btn-icon.btn-sm {
  width: 2rem;
  height: 2rem;
  padding: 0.3rem;
}
.btn-icon.btn-lg {
  width: 3rem;
  height: 3rem;
}

.btn-pill {
  --btn-radius: var(--r-full);
}

/* ==========================================================================
   CARD
   ========================================================================== */
.card {
  --card-bg: var(--surface-1);
  --card-border: var(--border-subtle);
  --card-radius: var(--r-2xl);
  --card-pad: var(--sp-6);
  --card-shadow: var(--shadow-sm);

  position: relative;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out);
  overflow: hidden;
}

.card-interactive:hover {
  border-color: var(--border-base);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.card-elevated {
  --card-shadow: var(--shadow-md);
}

.card-flat {
  --card-shadow: none;
}

.card-glass {
  background: var(--gradient-glass);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-color: color-mix(in srgb, #ffffff 20%, transparent);
}
[data-theme="dark"] .card-glass {
  background: linear-gradient(135deg, rgb(255 255 255 / 0.04), rgb(255 255 255 / 0.02));
  border-color: color-mix(in srgb, #ffffff 10%, transparent);
}

.card-header {
  padding: var(--sp-5) var(--sp-6);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}
.card-title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--tracking-snug);
  color: var(--text-primary);
  margin: 0;
}
.card-subtitle {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
  margin: var(--sp-1) 0 0;
}
.card-body {
  padding: var(--card-pad);
}
.card-footer {
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-0);
}

/* Stat card */
.stat-card {
  position: relative;
  padding: var(--sp-6);
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-2xl);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition:
    border-color var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-out);
}
.stat-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--gradient-brand-soft);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  pointer-events: none;
}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-base);
}
.stat-card:hover::before {
  opacity: 0.5;
}
.stat-card > * {
  position: relative;
}

.stat-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}
.stat-card__icon {
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--r-lg);
  background: var(--brand-surface);
  color: var(--brand-600);
}
[data-theme="dark"] .stat-card__icon {
  color: var(--brand-300);
}
.stat-card__icon--success { background: var(--success-bg); color: var(--success-fg); }
.stat-card__icon--warning { background: var(--warning-bg); color: var(--warning-fg); }
.stat-card__icon--danger  { background: var(--danger-bg);  color: var(--danger-fg); }
.stat-card__icon--info    { background: var(--info-bg);    color: var(--info-fg); }
.stat-card__icon--accent  { background: var(--accent-surface); color: var(--accent-700); }
[data-theme="dark"] .stat-card__icon--accent { color: var(--accent-300); }

.stat-card__icon [data-lucide] {
  width: 1.375rem;
  height: 1.375rem;
}
.stat-card__label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-tertiary);
  letter-spacing: var(--tracking-snug);
}
.stat-card__value {
  font-size: var(--fs-3xl);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  line-height: 1.1;
  margin-top: var(--sp-1);
  font-variant-numeric: tabular-nums;
}
.stat-card__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px dashed var(--border-subtle);
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}
.stat-card__meta [data-lucide] {
  width: 0.875rem;
  height: 0.875rem;
}
.stat-card__trend {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.1rem 0.5rem;
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
}
.stat-card__trend--up {
  background: var(--success-bg);
  color: var(--success-fg);
}
.stat-card__trend--down {
  background: var(--danger-bg);
  color: var(--danger-fg);
}

/* ==========================================================================
   FORM
   ========================================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  margin-bottom: var(--sp-4);
}
.form-label {
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  letter-spacing: var(--tracking-snug);
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
}
.form-label .required {
  color: var(--danger-500);
}

.form-control,
.form-select {
  display: block;
  width: 100%;
  padding: 0.65rem 0.875rem;
  font-size: var(--fs-sm);
  font-weight: var(--fw-regular);
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--surface-1);
  border: 1px solid var(--border-base);
  border-radius: var(--r-lg);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
  appearance: none;
  -webkit-appearance: none;
}

.form-control::placeholder {
  color: var(--text-muted);
}

.form-control:hover:not(:disabled):not(:focus),
.form-select:hover:not(:disabled):not(:focus) {
  border-color: var(--border-strong);
}

.form-control:focus,
.form-select:focus {
  outline: none;
  border-color: var(--brand-500);
  box-shadow: 0 0 0 var(--ring-width) var(--ring-color);
}

.form-control:disabled,
.form-select:disabled {
  background: var(--surface-0);
  color: var(--text-muted);
  cursor: not-allowed;
  opacity: 0.7;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--danger-500);
}
.form-control.is-invalid:focus,
.form-select.is-invalid:focus {
  box-shadow: 0 0 0 var(--ring-width) color-mix(in srgb, var(--danger-500) 30%, transparent);
}

.invalid-feedback {
  font-size: var(--fs-xs);
  color: var(--danger-600);
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}
.invalid-feedback::before {
  content: "⚠";
  font-size: 0.875em;
}
[data-theme="dark"] .invalid-feedback {
  color: var(--danger-fg);
}

.form-help {
  font-size: var(--fs-xs);
  color: var(--text-tertiary);
}

/* Input with icon (leading/trailing) */
.input-affix {
  position: relative;
}
.input-affix__leading,
.input-affix__trailing {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  pointer-events: none;
}
.input-affix__leading {
  left: 0.875rem;
}
.input-affix__trailing {
  right: 0.875rem;
}
.input-affix--leading .form-control {
  padding-left: 2.6rem;
}
.input-affix--trailing .form-control {
  padding-right: 2.6rem;
}

/* Select custom arrow */
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20' stroke='currentColor' stroke-width='1.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='m6 8 4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  background-size: 1.125rem;
  padding-right: 2.5rem;
}

/* Checkbox / Radio */
.form-check {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  user-select: none;
  cursor: pointer;
  font-size: var(--fs-sm);
  color: var(--text-primary);
}
.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 1.125rem;
  height: 1.125rem;
  border: 1.5px solid var(--border-strong);
  background: var(--surface-1);
  border-radius: var(--r-sm);
  cursor: pointer;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.form-check input[type="radio"] {
  border-radius: var(--r-full);
}
.form-check input[type="checkbox"]:hover,
.form-check input[type="radio"]:hover {
  border-color: var(--brand-500);
}
.form-check input[type="checkbox"]:checked {
  background: var(--brand-600);
  border-color: var(--brand-600);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2.5 6l2.5 2.5L9.5 3.5'/%3E%3C/svg%3E");
  background-size: 80% 80%;
  background-position: center;
  background-repeat: no-repeat;
}
.form-check input[type="radio"]:checked {
  background: var(--brand-600);
  border-color: var(--brand-600);
  box-shadow: inset 0 0 0 3px var(--surface-1);
}
.form-check input:focus-visible {
  outline: none;
  box-shadow: 0 0 0 var(--ring-width) var(--ring-color);
}

/* Switch */
.form-switch {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  cursor: pointer;
  user-select: none;
  font-size: var(--fs-sm);
}
.form-switch input {
  appearance: none;
  -webkit-appearance: none;
  width: 2.5rem;
  height: 1.375rem;
  background: var(--border-strong);
  border-radius: var(--r-full);
  position: relative;
  cursor: pointer;
  transition: background-color var(--dur-base) var(--ease-out);
}
.form-switch input::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 1.125rem;
  height: 1.125rem;
  background: #ffffff;
  border-radius: var(--r-full);
  box-shadow: 0 1px 3px rgb(0 0 0 / 0.2);
  transition: transform var(--dur-base) var(--ease-spring);
}
.form-switch input:checked {
  background: var(--brand-600);
}
.form-switch input:checked::before {
  transform: translateX(1.125rem);
}
.form-switch input:focus-visible {
  outline: none;
  box-shadow: 0 0 0 var(--ring-width) var(--ring-color);
}

/* ==========================================================================
   BADGE / CHIP
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  padding: 0.1875rem 0.5rem;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  line-height: 1.25;
  letter-spacing: var(--tracking-snug);
  border-radius: var(--r-full);
  background: var(--gray-100);
  color: var(--gray-700);
  border: 1px solid transparent;
}
[data-theme="dark"] .badge {
  background: color-mix(in srgb, var(--gray-0) 10%, transparent);
  color: var(--text-secondary);
}
.badge [data-lucide] {
  width: 0.875em;
  height: 0.875em;
}
.badge-primary { background: var(--brand-surface);      color: var(--brand-700); }
.badge-success { background: var(--success-bg);          color: var(--success-fg); }
.badge-warning { background: var(--warning-bg);          color: var(--warning-fg); }
.badge-danger  { background: var(--danger-bg);           color: var(--danger-fg); }
.badge-info    { background: var(--info-bg);             color: var(--info-fg); }
.badge-accent  { background: var(--accent-surface);      color: var(--accent-700); }

[data-theme="dark"] .badge-primary { color: var(--brand-300); }
[data-theme="dark"] .badge-accent  { color: var(--accent-300); }

.badge-outline {
  background: transparent;
  border-color: var(--border-base);
  color: var(--text-secondary);
}
.badge-dot {
  padding-left: 0.5rem;
}
.badge-dot::before {
  content: "";
  display: inline-block;
  width: 0.375rem;
  height: 0.375rem;
  border-radius: var(--r-full);
  background: currentColor;
}

/* ==========================================================================
   ALERT
   ========================================================================== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-4);
  border-radius: var(--r-xl);
  border: 1px solid var(--border-base);
  background: var(--surface-1);
  color: var(--text-primary);
}
.alert__icon {
  flex-shrink: 0;
  margin-top: 0.125rem;
}
.alert__content {
  flex: 1;
}
.alert__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  margin-bottom: 0.125rem;
}
.alert__body {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}
.alert__close {
  flex-shrink: 0;
  background: transparent;
  border: none;
  color: currentColor;
  opacity: 0.6;
  cursor: pointer;
  padding: 0.125rem;
  margin: -0.125rem;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--dur-fast) var(--ease-out);
}
.alert__close:hover { opacity: 1; }

.alert-success {
  background: var(--success-bg);
  border-color: color-mix(in srgb, var(--success-500) 25%, transparent);
  color: var(--success-fg);
}
.alert-warning {
  background: var(--warning-bg);
  border-color: color-mix(in srgb, var(--warning-500) 25%, transparent);
  color: var(--warning-fg);
}
.alert-danger {
  background: var(--danger-bg);
  border-color: color-mix(in srgb, var(--danger-500) 25%, transparent);
  color: var(--danger-fg);
}
.alert-info {
  background: var(--info-bg);
  border-color: color-mix(in srgb, var(--info-500) 25%, transparent);
  color: var(--info-fg);
}
.alert-success .alert__body,
.alert-warning .alert__body,
.alert-danger .alert__body,
.alert-info .alert__body {
  color: inherit;
  opacity: 0.9;
}

/* ==========================================================================
   SKELETON
   ========================================================================== */
.skeleton {
  display: block;
  background:
    linear-gradient(
      90deg,
      var(--surface-2) 0%,
      color-mix(in srgb, var(--gray-400) 22%, var(--surface-2)) 50%,
      var(--surface-2) 100%
    );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.4s ease-in-out infinite;
  border-radius: var(--r-md);
  width: 100%;
  height: 1em;
}
[data-theme="dark"] .skeleton {
  background:
    linear-gradient(
      90deg,
      var(--surface-2) 0%,
      color-mix(in srgb, #ffffff 8%, var(--surface-2)) 50%,
      var(--surface-2) 100%
    );
  background-size: 200% 100%;
}
.skeleton-text { height: 0.875em; margin-bottom: 0.5em; }
.skeleton-title { height: 1.5em; width: 60%; margin-bottom: 0.75em; }
.skeleton-circle { width: 2.5rem; height: 2.5rem; border-radius: var(--r-full); }
.skeleton-image { height: 10rem; border-radius: var(--r-xl); }

@keyframes skeleton-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ==========================================================================
   TABLE
   ========================================================================== */
.table-wrap {
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-2xl);
  background: var(--surface-1);
  overflow: hidden;
}
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: var(--fs-sm);
}
.table thead th {
  background: var(--surface-0);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-tertiary);
  text-align: left;
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--border-base);
  white-space: nowrap;
  position: sticky;
  top: 0;
  z-index: 1;
}
.table tbody td {
  padding: var(--sp-3_5, 0.85rem) var(--sp-4);
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  vertical-align: middle;
}
.table tbody tr {
  transition: background-color var(--dur-fast) var(--ease-out);
}
.table tbody tr:hover {
  background: var(--state-hover-bg);
}
.table tbody tr:last-child td {
  border-bottom: none;
}

.table-compact thead th,
.table-compact tbody td {
  padding: var(--sp-2) var(--sp-3);
}

/* ==========================================================================
   DROPDOWN
   ========================================================================== */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 14rem;
  padding: var(--sp-1_5);
  background: var(--surface-1);
  border: 1px solid var(--border-base);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  transform-origin: top right;
  visibility: hidden;
  transition:
    opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-base) var(--ease-out),
    visibility 0s linear var(--dur-base);
}
.dropdown-menu.is-open,
.dropdown-menu[data-open="true"] {
  opacity: 1;
  transform: translateY(0) scale(1);
  visibility: visible;
  transition-delay: 0s;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.55rem 0.75rem;
  font-size: var(--fs-sm);
  color: var(--text-primary);
  border-radius: var(--r-md);
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--dur-fast) var(--ease-out);
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
}
.dropdown-item [data-lucide] {
  width: 1rem;
  height: 1rem;
  color: var(--text-tertiary);
}
.dropdown-item:hover {
  background: var(--state-hover-bg);
  color: var(--text-primary);
}
.dropdown-item--danger {
  color: var(--danger-600);
}
.dropdown-item--danger:hover {
  background: var(--danger-bg);
  color: var(--danger-fg);
}
.dropdown-item--danger [data-lucide] {
  color: currentColor;
}

.dropdown-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: var(--sp-1_5) 0;
  border: none;
}

.dropdown-label {
  padding: 0.5rem 0.75rem 0.25rem;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   MODAL (basics)
   ========================================================================== */
.modal-backdrop-v2 {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--gray-950) 55%, transparent);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: var(--z-backdrop);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out);
}
.modal-backdrop-v2.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-v2 {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, calc(-50% + 12px)) scale(0.97);
  width: min(92vw, 560px);
  max-height: 90dvh;
  background: var(--surface-1);
  border: 1px solid var(--border-base);
  border-radius: var(--r-2xl);
  box-shadow: var(--shadow-xl);
  z-index: var(--z-modal);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--dur-base) var(--ease-out),
    transform var(--dur-base) var(--ease-spring);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-v2.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}
.modal-v2__header {
  padding: var(--sp-5) var(--sp-6);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}
.modal-v2__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
}
.modal-v2__body {
  padding: var(--sp-6);
  overflow-y: auto;
}
.modal-v2__footer {
  padding: var(--sp-4) var(--sp-6);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: var(--sp-2);
}

/* ==========================================================================
   AVATAR
   ========================================================================== */
.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--r-full);
  background: var(--gradient-brand);
  color: #ffffff;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
  letter-spacing: 0;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.avatar-sm { width: 2rem; height: 2rem; font-size: var(--fs-xs); }
.avatar-lg { width: 3rem; height: 3rem; font-size: var(--fs-base); }
.avatar-xl { width: 4rem; height: 4rem; font-size: var(--fs-lg); }

/* ==========================================================================
   DIVIDER
   ========================================================================== */
.divider {
  height: 1px;
  background: var(--border-subtle);
  margin: var(--sp-4) 0;
  border: none;
}
.divider-vertical {
  width: 1px;
  height: auto;
  align-self: stretch;
  background: var(--border-subtle);
  margin: 0 var(--sp-3);
}

/* ==========================================================================
   TOAST
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: var(--sp-5);
  right: var(--sp-5);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  max-width: min(22rem, calc(100vw - 2rem));
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-4);
  background: var(--surface-1);
  border: 1px solid var(--border-base);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-lg);
  pointer-events: auto;
  transform: translateX(120%);
  opacity: 0;
  transition:
    transform var(--dur-slow) var(--ease-spring),
    opacity var(--dur-base) var(--ease-out);
  overflow: hidden;
  position: relative;
}
.toast.is-open {
  transform: translateX(0);
  opacity: 1;
}
.toast.is-closing {
  transform: translateX(120%);
  opacity: 0;
}
.toast::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--brand-500);
}
.toast--success::before { background: var(--success-500); }
.toast--warning::before { background: var(--warning-500); }
.toast--danger::before  { background: var(--danger-500); }
.toast--info::before    { background: var(--info-500); }

.toast__icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  color: var(--brand-600);
  margin-top: 0.1rem;
}
.toast--success .toast__icon { color: var(--success-600); }
.toast--warning .toast__icon { color: var(--warning-600); }
.toast--danger  .toast__icon { color: var(--danger-600); }
.toast--info    .toast__icon { color: var(--info-600); }

.toast__content { flex: 1; min-width: 0; }
.toast__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--text-primary);
  margin-bottom: 0.15rem;
}
.toast__body {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}
.toast__close {
  flex-shrink: 0;
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  padding: 0.125rem;
  margin: -0.125rem;
  border-radius: var(--r-sm);
  transition: color var(--dur-fast) var(--ease-out);
  display: flex;
  align-items: center;
}
.toast__close:hover { color: var(--text-primary); }

/* ==========================================================================
   SPINNER
   ========================================================================== */
.spinner-v2 {
  display: inline-block;
  width: 1.125em;
  height: 1.125em;
  border: 2px solid color-mix(in srgb, currentColor 25%, transparent);
  border-top-color: currentColor;
  border-radius: var(--r-full);
  animation: spin-v2 0.7s linear infinite;
}
@keyframes spin-v2 {
  to { transform: rotate(360deg); }
}
.spinner-lg { width: 2rem; height: 2rem; border-width: 3px; }

/* ==========================================================================
   TAB / SEGMENTED
   ========================================================================== */
.segmented {
  display: inline-flex;
  padding: 0.25rem;
  background: var(--surface-0);
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  gap: 2px;
}
.segmented__btn {
  border: none;
  background: transparent;
  padding: 0.4rem 0.875rem;
  border-radius: calc(var(--r-lg) - 4px);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    background-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}
.segmented__btn:hover {
  color: var(--text-primary);
}
.segmented__btn.is-active,
.segmented__btn[aria-selected="true"] {
  background: var(--surface-1);
  color: var(--text-primary);
  box-shadow: var(--shadow-xs);
}

/* ==========================================================================
   PROGRESS BAR
   ========================================================================== */
.progress-v2 {
  width: 100%;
  height: 0.5rem;
  background: var(--surface-2);
  border-radius: var(--r-full);
  overflow: hidden;
}
.progress-v2__bar {
  height: 100%;
  background: var(--gradient-brand);
  transition: width var(--dur-slow) var(--ease-out);
  border-radius: var(--r-full);
}
.progress-thin { height: 0.25rem; }
.progress-thick { height: 0.75rem; }

/* ==========================================================================
   TOOLTIP (CSS-only, data-tooltip)
   ========================================================================== */
[data-tooltip] {
  position: relative;
}
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 0.375rem);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  padding: 0.35rem 0.625rem;
  background: var(--gray-900);
  color: #ffffff;
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  white-space: nowrap;
  border-radius: var(--r-md);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
  z-index: var(--z-tooltip);
}
[data-tooltip]:hover::after,
[data-tooltip]:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
[data-theme="dark"] [data-tooltip]::after {
  background: var(--gray-700);
}

/* ==========================================================================
   PAGINATION
   ========================================================================== */
.pagination-v2 {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-0);
  flex-wrap: wrap;
}

.pagination-v2__info {
  font-size: var(--fs-sm);
  color: var(--text-tertiary);
}
.pagination-v2__info strong {
  color: var(--text-primary);
  font-weight: var(--fw-semibold);
  font-variant-numeric: tabular-nums;
}

.pagination-v2__controls {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
}

.pagination-v2__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 2.25rem;
  padding: 0 0.625rem;
  border-radius: var(--r-md);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  font-variant-numeric: tabular-nums;
  cursor: pointer;
  transition: background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}
.pagination-v2__btn:hover:not(:disabled):not(.is-active) {
  background: var(--state-hover-bg);
  color: var(--text-primary);
}
.pagination-v2__btn.is-active {
  background: var(--brand-600);
  color: #ffffff;
  border-color: var(--brand-600);
  box-shadow: 0 1px 2px 0 color-mix(in srgb, var(--brand-900) 20%, transparent);
}
.pagination-v2__btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pagination-v2__btn [data-lucide] {
  width: 0.95rem;
  height: 0.95rem;
}
.pagination-v2__ellipsis {
  padding: 0 0.25rem;
  color: var(--text-muted);
}

@media (max-width: 639.98px) {
  .pagination-v2 { flex-direction: column; align-items: stretch; }
  .pagination-v2__controls { justify-content: center; }
}
/* ==========================================================================
   Utilities — Curated utility classes (Tailwind-inspired subset)
   Used sparingly for layout tweaks within components
   ========================================================================== */

/* Display */
.d-block       { display: block; }
.d-inline      { display: inline; }
.d-inline-block{ display: inline-block; }
.d-flex        { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-grid        { display: grid; }
.d-none        { display: none !important; }

/* Flex */
.flex-row       { flex-direction: row; }
.flex-col       { flex-direction: column; }
.flex-wrap      { flex-wrap: wrap; }
.flex-nowrap    { flex-wrap: nowrap; }
.flex-1         { flex: 1 1 0%; min-width: 0; }
.flex-auto      { flex: 1 1 auto; }
.flex-none      { flex: none; }
.flex-grow      { flex-grow: 1; }
.flex-shrink-0  { flex-shrink: 0; }

.items-start    { align-items: flex-start; }
.items-center   { align-items: center; }
.items-end      { align-items: flex-end; }
.items-stretch  { align-items: stretch; }
.items-baseline { align-items: baseline; }

.justify-start   { justify-content: flex-start; }
.justify-center  { justify-content: center; }
.justify-end     { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around  { justify-content: space-around; }

/* Gap (matches spacing scale) */
.gap-0   { gap: 0; }
.gap-1   { gap: var(--sp-1); }
.gap-2   { gap: var(--sp-2); }
.gap-3   { gap: var(--sp-3); }
.gap-4   { gap: var(--sp-4); }
.gap-5   { gap: var(--sp-5); }
.gap-6   { gap: var(--sp-6); }
.gap-8   { gap: var(--sp-8); }
.gap-x-2 { column-gap: var(--sp-2); }
.gap-x-3 { column-gap: var(--sp-3); }
.gap-y-2 { row-gap: var(--sp-2); }

/* Width / Height */
.w-full    { width: 100%; }
.w-auto    { width: auto; }
.w-fit     { width: fit-content; }
.max-w-xs  { max-width: 20rem; }
.max-w-sm  { max-width: 24rem; }
.max-w-md  { max-width: 28rem; }
.max-w-lg  { max-width: 32rem; }
.max-w-xl  { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }
.max-w-5xl { max-width: 64rem; }
.h-full    { height: 100%; }
.h-auto    { height: auto; }
.min-w-0   { min-width: 0; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed    { position: fixed; }
.sticky   { position: sticky; }
.static   { position: static; }

.top-0    { top: 0; }
.right-0  { right: 0; }
.bottom-0 { bottom: 0; }
.left-0   { left: 0; }
.inset-0  { inset: 0; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto   { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* Padding */
.p-0  { padding: 0; }
.p-1  { padding: var(--sp-1); }
.p-2  { padding: var(--sp-2); }
.p-3  { padding: var(--sp-3); }
.p-4  { padding: var(--sp-4); }
.p-5  { padding: var(--sp-5); }
.p-6  { padding: var(--sp-6); }
.p-8  { padding: var(--sp-8); }

.px-0 { padding-left: 0; padding-right: 0; }
.px-1 { padding-left: var(--sp-1); padding-right: var(--sp-1); }
.px-2 { padding-left: var(--sp-2); padding-right: var(--sp-2); }
.px-3 { padding-left: var(--sp-3); padding-right: var(--sp-3); }
.px-4 { padding-left: var(--sp-4); padding-right: var(--sp-4); }
.px-5 { padding-left: var(--sp-5); padding-right: var(--sp-5); }
.px-6 { padding-left: var(--sp-6); padding-right: var(--sp-6); }
.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: var(--sp-1); padding-bottom: var(--sp-1); }
.py-2 { padding-top: var(--sp-2); padding-bottom: var(--sp-2); }
.py-3 { padding-top: var(--sp-3); padding-bottom: var(--sp-3); }
.py-4 { padding-top: var(--sp-4); padding-bottom: var(--sp-4); }
.py-5 { padding-top: var(--sp-5); padding-bottom: var(--sp-5); }
.py-6 { padding-top: var(--sp-6); padding-bottom: var(--sp-6); }

.pt-1 { padding-top: var(--sp-1); }
.pt-2 { padding-top: var(--sp-2); }
.pt-3 { padding-top: var(--sp-3); }
.pt-4 { padding-top: var(--sp-4); }
.pt-6 { padding-top: var(--sp-6); }
.pb-1 { padding-bottom: var(--sp-1); }
.pb-2 { padding-bottom: var(--sp-2); }
.pb-3 { padding-bottom: var(--sp-3); }
.pb-4 { padding-bottom: var(--sp-4); }
.pb-6 { padding-bottom: var(--sp-6); }

/* Margin */
.m-0  { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--sp-1); }
.mt-2 { margin-top: var(--sp-2); }
.mt-3 { margin-top: var(--sp-3); }
.mt-4 { margin-top: var(--sp-4); }
.mt-5 { margin-top: var(--sp-5); }
.mt-6 { margin-top: var(--sp-6); }
.mt-8 { margin-top: var(--sp-8); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--sp-1); }
.mb-2 { margin-bottom: var(--sp-2); }
.mb-3 { margin-bottom: var(--sp-3); }
.mb-4 { margin-bottom: var(--sp-4); }
.mb-5 { margin-bottom: var(--sp-5); }
.mb-6 { margin-bottom: var(--sp-6); }
.mb-8 { margin-bottom: var(--sp-8); }
.ml-1 { margin-left: var(--sp-1); }
.ml-2 { margin-left: var(--sp-2); }
.ml-auto { margin-left: auto; }
.mr-1 { margin-right: var(--sp-1); }
.mr-2 { margin-right: var(--sp-2); }
.mr-auto { margin-right: auto; }

/* Text */
.text-left   { text-align: left; }
.text-center { text-align: center; }
.text-right  { text-align: right; }

.text-xs   { font-size: var(--fs-xs); }
.text-sm   { font-size: var(--fs-sm); }
.text-base { font-size: var(--fs-base); }
.text-md   { font-size: var(--fs-md); }
.text-lg   { font-size: var(--fs-lg); }
.text-xl   { font-size: var(--fs-xl); }
.text-2xl  { font-size: var(--fs-2xl); }
.text-3xl  { font-size: var(--fs-3xl); }

.font-regular  { font-weight: var(--fw-regular); }
.font-medium   { font-weight: var(--fw-medium); }
.font-semibold { font-weight: var(--fw-semibold); }
.font-bold     { font-weight: var(--fw-bold); }

.font-mono { font-family: var(--font-mono); }
.font-display { font-family: var(--font-display); }

.text-primary   { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-tertiary  { color: var(--text-tertiary) !important; }
.text-muted     { color: var(--text-muted) !important; }
.text-brand     { color: var(--brand-600) !important; }
.text-accent    { color: var(--accent-600) !important; }
.text-success   { color: var(--success-600) !important; }
.text-warning   { color: var(--warning-600) !important; }
.text-danger    { color: var(--danger-600) !important; }
.text-info      { color: var(--info-600) !important; }
.text-inherit   { color: inherit !important; }

[data-theme="dark"] .text-brand   { color: var(--brand-300) !important; }
[data-theme="dark"] .text-accent  { color: var(--accent-300) !important; }
[data-theme="dark"] .text-success { color: var(--success-fg) !important; }
[data-theme="dark"] .text-warning { color: var(--warning-fg) !important; }
[data-theme="dark"] .text-danger  { color: var(--danger-fg) !important; }
[data-theme="dark"] .text-info    { color: var(--info-fg) !important; }

.tabular-nums { font-variant-numeric: tabular-nums; }
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.break-words { overflow-wrap: break-word; word-break: break-word; }
.uppercase { text-transform: uppercase; }
.capitalize { text-transform: capitalize; }
.whitespace-nowrap { white-space: nowrap; }

/* Backgrounds */
.bg-app       { background-color: var(--surface-app); }
.bg-surface   { background-color: var(--surface-1); }
.bg-surface-0 { background-color: var(--surface-0); }
.bg-surface-2 { background-color: var(--surface-2); }
.bg-brand     { background: var(--brand-600); color: #fff; }
.bg-gradient  { background: var(--gradient-brand); color: #fff; }
.bg-glass     { background: var(--gradient-glass); -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px); }

/* Border */
.border         { border: 1px solid var(--border-base); }
.border-subtle  { border: 1px solid var(--border-subtle); }
.border-t       { border-top: 1px solid var(--border-base); }
.border-b       { border-bottom: 1px solid var(--border-base); }
.border-none    { border: none; }

.rounded     { border-radius: var(--r-md); }
.rounded-sm  { border-radius: var(--r-sm); }
.rounded-lg  { border-radius: var(--r-lg); }
.rounded-xl  { border-radius: var(--r-xl); }
.rounded-2xl { border-radius: var(--r-2xl); }
.rounded-full{ border-radius: var(--r-full); }

/* Shadow */
.shadow-none { box-shadow: none; }
.shadow-xs   { box-shadow: var(--shadow-xs); }
.shadow-sm   { box-shadow: var(--shadow-sm); }
.shadow-md   { box-shadow: var(--shadow-md); }
.shadow-lg   { box-shadow: var(--shadow-lg); }
.shadow-xl   { box-shadow: var(--shadow-xl); }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }
.select-none { user-select: none; }

/* Transitions */
.transition { transition: all var(--dur-base) var(--ease-out); }
.transition-fast { transition: all var(--dur-fast) var(--ease-out); }

/* Responsive utilities */
@media (max-width: 639.98px) {
  .d-none-sm { display: none !important; }
  .d-block-sm { display: block !important; }
}
@media (max-width: 767.98px) {
  .d-none-md { display: none !important; }
  .d-block-md { display: block !important; }
}
@media (max-width: 1023.98px) {
  .d-none-lg { display: none !important; }
  .d-block-lg { display: block !important; }
}
@media (min-width: 768px) {
  .md\:d-flex  { display: flex !important; }
  .md\:d-none  { display: none !important; }
  .md\:d-block { display: block !important; }
}
@media (min-width: 1024px) {
  .lg\:d-flex  { display: flex !important; }
  .lg\:d-none  { display: none !important; }
  .lg\:d-block { display: block !important; }
  .lg\:items-center { align-items: center; }
  .lg\:justify-between { justify-content: space-between; }
  .lg\:flex-row  { flex-direction: row; }
}

/* Animations (entrance) */
.fade-in {
  animation: fadeIn var(--dur-slow) var(--ease-out) both;
}
.slide-up {
  animation: slideUp var(--dur-slow) var(--ease-out) both;
}
.slide-down {
  animation: slideDown var(--dur-slow) var(--ease-out) both;
}
.scale-in {
  animation: scaleIn var(--dur-slow) var(--ease-spring) both;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96); }
  to   { opacity: 1; transform: scale(1); }
}

.delay-75  { animation-delay: 75ms; }
.delay-100 { animation-delay: 100ms; }
.delay-150 { animation-delay: 150ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }

/* Sidebar collapsed (desktop) */
@media (min-width: 1024px) {
  .sidebar-collapsed {
    grid-template-columns: var(--sidebar-w-collapsed) 1fr;
  }
  .sidebar-collapsed .sidebar {
    width: var(--sidebar-w-collapsed);
  }
  .sidebar-collapsed .sidebar__brand-text,
  .sidebar-collapsed .sidebar__label,
  .sidebar-collapsed .sidebar__item-label,
  .sidebar-collapsed .sidebar__badge,
  .sidebar-collapsed .sidebar__user-info {
    display: none;
  }
  .sidebar-collapsed .sidebar__brand {
    justify-content: center;
    padding: 0;
  }
  .sidebar-collapsed .sidebar__item {
    justify-content: center;
    padding: 0.6rem;
  }
  .sidebar-collapsed .sidebar__item [data-lucide] {
    width: 1.25rem;
    height: 1.25rem;
  }
  .sidebar-collapsed .sidebar__user {
    justify-content: center;
    padding: var(--sp-2);
  }
  .sidebar-collapsed .sidebar__nav {
    padding: var(--sp-3) var(--sp-1);
  }
  .sidebar-collapsed .sidebar__footer {
    padding: var(--sp-3) var(--sp-1);
  }
}