/* ============================================
   IIFIS Design System — Variables & Tokens
   ============================================ */

:root {
  /* ── Colors ── */
  --color-primary: #0B1F3A;
  --color-primary-rgb: 11, 31, 58;
  --color-primary-light: #1A3A5C;
  --color-primary-lighter: #2A5A8C;
  --color-primary-dark: #060F1D;

  --color-secondary: #C9A227;
  --color-secondary-rgb: 201, 162, 39;
  --color-secondary-light: #D4B94E;
  --color-secondary-dark: #A8861E;

  --color-bg: #FFFFFF;
  --color-bg-alt: #F8F9FB;
  --color-accent: #F4F6F8;
  --color-accent-warm: #FFF8E7;

  --color-text: #1A1A2E;
  --color-text-light: #FFFFFF;
  --color-text-muted: #6B7280;
  --color-text-subtle: #9CA3AF;

  --color-border: #E5E7EB;
  --color-border-light: #F0F1F3;

  --color-success: #10B981;
  --color-success-bg: #ECFDF5;
  --color-error: #EF4444;
  --color-error-bg: #FEF2F2;
  --color-warning: #F59E0B;
  --color-info: #3B82F6;

  /* ── Typography ── */
  --font-heading: 'Playfair Display', 'Georgia', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: clamp(0.75rem, 0.7rem + 0.15vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.775rem + 0.2vw, 0.875rem);
  --text-base: clamp(0.9375rem, 0.875rem + 0.25vw, 1rem);
  --text-lg: clamp(1.0625rem, 0.975rem + 0.35vw, 1.125rem);
  --text-xl: clamp(1.1875rem, 1.05rem + 0.5vw, 1.25rem);
  --text-2xl: clamp(1.375rem, 1.15rem + 0.75vw, 1.5rem);
  --text-3xl: clamp(1.625rem, 1.3rem + 1vw, 1.875rem);
  --text-4xl: clamp(2rem, 1.5rem + 1.5vw, 2.25rem);
  --text-5xl: clamp(2.5rem, 1.75rem + 2.25vw, 3rem);
  --text-6xl: clamp(3rem, 2rem + 3vw, 3.75rem);

  --leading-tight: 1.2;
  --leading-snug: 1.35;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* ── Spacing ── */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* ── Layout ── */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;

  --nav-height: 80px;
  --nav-height-scrolled: 64px;

  /* ── Border Radius ── */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* ── Shadows ── */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-2xl: 0 24px 64px rgba(0, 0, 0, 0.16);
  --shadow-gold: 0 4px 24px rgba(201, 162, 39, 0.25);
  --shadow-navy: 0 4px 24px rgba(11, 31, 58, 0.2);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* ── Transitions ── */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
  --transition-spring: 400ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Card resize */
  --resize-dur: 300ms;
  --resize-ease: cubic-bezier(0.22, 1, 0.36, 1);
  /* Number pop-in */
  --digit-dur: 500ms;
  --digit-distance: 8px;
  --digit-stagger: 70ms;
  --digit-blur: 2px;
  --digit-ease: cubic-bezier(0.34, 1.45, 0.64, 1);
  --digit-dir-x: 0;
  --digit-dir-y: 1;
  /* Notification badge */
  --badge-slide-dur: 260ms;
  --badge-pop-dur: 500ms;
  --badge-pop-close-dur: 180ms;
  --badge-fade-dur: 400ms;
  --badge-fade-close-dur: 180ms;
  --badge-blur: 2px;
  --badge-offset-x: -8.2px;
  --badge-offset-y: 12.4px;
  --badge-slide-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --badge-pop-ease: cubic-bezier(0.34, 1.36, 0.64, 1);
  --badge-close-ease: cubic-bezier(0.4, 0, 0.2, 1);
  /* Text states swap */
  --text-swap-dur: 150ms;
  --text-swap-translate-y: 4px;
  --text-swap-blur: 2px;
  --text-swap-ease: ease-in-out;
  /* Menu dropdown */
  --dropdown-open-dur: 250ms;
  --dropdown-close-dur: 150ms;
  --dropdown-pre-scale: 0.97;
  --dropdown-closing-scale: 0.99;
  --dropdown-ease: cubic-bezier(0.22, 1, 0.36, 1);
  /* Modal open / close */
  --modal-open-dur: 250ms;
  --modal-close-dur: 150ms;
  --modal-scale: 0.96;
  --modal-scale-close: 0.96;
  --modal-ease: cubic-bezier(0.22, 1, 0.36, 1);
  /* Panel reveal */
  --panel-open-dur: 400ms;
  --panel-close-dur: 350ms;
  --panel-translate-y: 100px;
  --panel-blur: 2px;
  --panel-ease: cubic-bezier(0.22, 1, 0.36, 1);
  /* Page side-by-side */
  --page-slide-dur: 250ms;
  --page-fade-dur: 250ms;
  --page-slide-distance: 8px;
  --page-blur: 3px;
  --page-stagger: 0ms;
  --page-exit-enabled: 1;
  --page-slide-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --page-fade-ease: cubic-bezier(0.22, 1, 0.36, 1);
  /* Icon swap */
  --icon-swap-dur: 250ms;
  --icon-swap-blur: 2px;
  --icon-swap-start-scale: 0.25;
  --icon-swap-ease: ease-in-out;
  /* Success check */
  --check-opacity-dur: 500ms;
  --check-rotate-dur: 500ms;
  --check-rotate-from: 80deg;
  --check-bob-dur: 500ms;
  --check-y-amount: 40px;
  --check-blur-dur: 500ms;
  --check-blur-from: 10px;
  --check-path-dur: 500ms;
  --check-path-delay: 80ms;
  --check-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --check-ease-opacity: cubic-bezier(0.22, 1, 0.36, 1);
  --check-ease-rotate: cubic-bezier(0.22, 1, 0.36, 1);
  --check-ease-bob: cubic-bezier(0.34, 1.35, 0.64, 1);
  --check-ease-path: cubic-bezier(0.22, 1, 0.36, 1);
  /* Avatar group hover */
  --avatar-lift: -4px;
  --avatar-dur: 320ms;
  --avatar-scale: 1.05;
  --avatar-falloff: 0.45;
  --avatar-ease-in: cubic-bezier(0.22, 1, 0.36, 1);
  --avatar-ease-out: cubic-bezier(0.34, 3.85, 0.64, 1);
  /* Error state shake */
  --shake-distance: 6px;
  --shake-overshoot: 4px;
  --shake-dur-a: 80ms;
  --shake-dur-b: 60ms;
  --shake-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --revert-hold: 3000ms;
  --revert-dur: 280ms;
  /* Input clear with dissolve */
  --clear-dur: 1000ms;
  --clear-out-dur: 400ms;
  --clear-in-dur: 400ms;
  --clear-out-fly: 12px;
  --clear-in-fly: 12px;
  --clear-out-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --clear-in-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --clear-blur: 2px;
  --glow-delay: 50ms;
  --glow-peak-at: 0.15;
  --glow-opacity: 0.42;
  --glow-spread: 1.5;
  /* Skeleton loader and reveal */
  --pulse-dur: 1000ms;
  --pulse-count: 1;
  --pulse-min: 0.5;
  --reveal-dur: 400ms;
  --reveal-blur: 2px;
  --reveal-ease: ease-in-out;
  /* Shimmer text */
  --shimmer-dur: 2000ms;
  --shimmer-base: #7c7c7c;
  --shimmer-highlight: #0d0d0d;
  --shimmer-band: 400%;
  --shimmer-ease: linear;
  /* Tabs sliding */
  --tabs-dur: 250ms;
  --tabs-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --tabs-text-muted: rgba(15, 15, 15, 0.8);
  --tabs-text-active: #0f0f0f;
  --tabs-bar-bg: #f1f1f1;
  --tabs-pill-bg: #ffffff;
  /* Tooltip open/close */
  --tt-in-dur: 150ms;
  --tt-out-dur: 50ms;
  --tt-scale: 0.98;
  --tt-delay: 80ms;
  --tt-in-ease: ease-out;
  --tt-out-ease: ease-out;
  --tt-bg: #ffffff;
  --tt-fg: #2f2f2f;
  /* Texts reveal */
  --stagger-dur: 500ms;
  --stagger-distance: 12px;
  --stagger-stagger: 40ms;
  --stagger-blur: 3px;
  --stagger-ease: cubic-bezier(0.22, 1, 0.36, 1);

  /* ── Z-Index ── */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* ── Glassmorphism ── */
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-bg-dark: rgba(11, 31, 58, 0.9);
  --glass-blur: blur(16px);
  --glass-border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ── Dark mode support (future) ── */
@media (prefers-color-scheme: dark) {
  :root {
    /* Placeholder for dark mode tokens */
  }
}