/**
 * ============================================================
 * CROWN DESIGN SYSTEM 1.0
 * Theme Foundation
 * ============================================================
 *
 * Purpose:
 * - Define the visual language for Crown Scorecard
 * - Centralize colors, typography, spacing, radii, shadows,
 *   transitions, and accessibility defaults
 *
 * This file should contain design tokens and global defaults.
 * Page-specific layouts belong in separate CSS files.
 * ============================================================
 */

:root {
  /*
   * ==========================================================
   * BRAND COLORS
   * ==========================================================
   */

  --crown-gold-50: #fbf8ef;
  --crown-gold-100: #f5edd5;
  --crown-gold-200: #ead9a7;
  --crown-gold-300: #dec278;
  --crown-gold-400: #cdaa50;
  --crown-gold-500: #b89436;
  --crown-gold-600: #98772b;
  --crown-gold-700: #765b24;
  --crown-gold-800: #59451f;
  --crown-gold-900: #3f3219;

  --crown-navy-50: #f1f5f9;
  --crown-navy-100: #e2e8f0;
  --crown-navy-200: #cbd5e1;
  --crown-navy-300: #94a3b8;
  --crown-navy-400: #64748b;
  --crown-navy-500: #475569;
  --crown-navy-600: #334155;
  --crown-navy-700: #243449;
  --crown-navy-800: #182538;
  --crown-navy-900: #101a29;
  --crown-navy-950: #0a111c;

  --crown-charcoal-50: #f7f7f6;
  --crown-charcoal-100: #ededeb;
  --crown-charcoal-200: #d8d8d4;
  --crown-charcoal-300: #b8b8b2;
  --crown-charcoal-400: #8f8f88;
  --crown-charcoal-500: #6d6d67;
  --crown-charcoal-600: #52524e;
  --crown-charcoal-700: #3c3c39;
  --crown-charcoal-800: #292927;
  --crown-charcoal-900: #1b1b1a;
  --crown-charcoal-950: #111110;

  /*
   * ==========================================================
   * SEMANTIC COLORS
   * ==========================================================
   */

  --color-brand: var(--crown-gold-500);
  --color-brand-hover: var(--crown-gold-600);
  --color-brand-active: var(--crown-gold-700);
  --color-brand-soft: var(--crown-gold-50);
  --color-brand-border: var(--crown-gold-200);

  --color-primary: var(--crown-navy-800);
  --color-primary-hover: var(--crown-navy-900);
  --color-primary-soft: var(--crown-navy-50);

  --color-background: #f6f5f1;
  --color-background-subtle: #faf9f6;
  --color-surface: #ffffff;
  --color-surface-raised: #ffffff;
  --color-surface-muted: #f1f0ec;
  --color-surface-dark: var(--crown-navy-900);

  --color-text: var(--crown-charcoal-900);
  --color-text-strong: #111827;
  --color-text-muted: #667085;
  --color-text-subtle: #8a8f98;
  --color-text-inverse: #ffffff;
  --color-text-gold: var(--crown-gold-700);

  --color-border: #deddd8;
  --color-border-soft: #ebeae5;
  --color-border-strong: #c9c7c0;
  --color-divider: #e8e7e2;

  --color-success: #2f7d5c;
  --color-success-hover: #27694d;
  --color-success-soft: #eaf5ef;
  --color-success-border: #b9ddc9;

  --color-warning: #a66f1c;
  --color-warning-hover: #895b17;
  --color-warning-soft: #fcf3df;
  --color-warning-border: #ead0a0;

  --color-danger: #b54747;
  --color-danger-hover: #963b3b;
  --color-danger-soft: #fbeaea;
  --color-danger-border: #efbcbc;

  --color-info: #3e6387;
  --color-info-hover: #31516f;
  --color-info-soft: #eaf1f7;
  --color-info-border: #bfd1df;

  /*
   * ==========================================================
   * TYPOGRAPHY
   * ==========================================================
   */

  --font-family-sans:
    "Inter",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  --font-size-2xs: 0.6875rem;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.15;
  --line-height-heading: 1.25;
  --line-height-body: 1.6;
  --line-height-relaxed: 1.75;

  --letter-spacing-tight: -0.025em;
  --letter-spacing-heading: -0.015em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.06em;
  --letter-spacing-label: 0.1em;

  /*
   * ==========================================================
   * SPACING
   * ==========================================================
   */

  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-7: 1.75rem;
  --space-8: 2rem;
  --space-9: 2.25rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-14: 3.5rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /*
   * ==========================================================
   * RADII
   * ==========================================================
   */

  --radius-xs: 0.375rem;
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.5rem;
  --radius-pill: 999px;

  /*
   * ==========================================================
   * SHADOWS
   * ==========================================================
   */

  --shadow-xs:
    0 1px 2px rgba(16, 24, 40, 0.05);

  --shadow-sm:
    0 1px 3px rgba(16, 24, 40, 0.08),
    0 1px 2px rgba(16, 24, 40, 0.04);

  --shadow-md:
    0 8px 24px rgba(16, 24, 40, 0.08),
    0 2px 8px rgba(16, 24, 40, 0.04);

  --shadow-lg:
    0 18px 45px rgba(16, 24, 40, 0.1),
    0 4px 14px rgba(16, 24, 40, 0.05);

  --shadow-focus:
    0 0 0 4px rgba(184, 148, 54, 0.18);

  /*
   * ==========================================================
   * TRANSITIONS
   * ==========================================================
   */

  --transition-fast: 120ms ease;
  --transition-base: 180ms ease;
  --transition-slow: 280ms ease;

  /*
   * ==========================================================
   * LAYOUT TOKENS
   * ==========================================================
   */

  --sidebar-width: 17rem;
  --sidebar-collapsed-width: 4.75rem;

  --content-max-width: 95rem;
  --page-gutter: clamp(1rem, 2vw, 2rem);
  --section-gap: clamp(1.5rem, 3vw, 2.5rem);
  --card-padding: clamp(1rem, 2vw, 1.5rem);

  --header-height: 4.5rem;
  --control-height-sm: 2.25rem;
  --control-height-md: 2.75rem;
  --control-height-lg: 3.25rem;

  /*
   * ==========================================================
   * Z-INDEX
   * ==========================================================
   */

  --z-base: 1;
  --z-sticky: 100;
  --z-dropdown: 300;
  --z-popover: 500;
  --z-modal-backdrop: 800;
  --z-modal: 900;
  --z-toast: 1000;
}

/*
 * ============================================================
 * GLOBAL RESET
 * ============================================================
 */

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

html {
  min-height: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(
      circle at top right,
      rgba(184, 148, 54, 0.06),
      transparent 28rem
    ),
    var(--color-background);
  color: var(--color-text);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-regular);
  line-height: var(--line-height-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

button {
  color: inherit;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-brand-hover);
}

::selection {
  background: var(--crown-gold-200);
  color: var(--crown-charcoal-950);
}

/*
 * ============================================================
 * TYPOGRAPHY DEFAULTS
 * ============================================================
 */

h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin-top: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-text-strong);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-heading);
  letter-spacing: var(--letter-spacing-heading);
}

h1 {
  margin-bottom: var(--space-5);
  font-size: clamp(2rem, 4vw, var(--font-size-5xl));
}

h2 {
  margin-bottom: var(--space-4);
  font-size: clamp(1.75rem, 3vw, var(--font-size-4xl));
}

h3 {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-2xl);
}

h4 {
  margin-bottom: var(--space-3);
  font-size: var(--font-size-xl);
}

h5 {
  margin-bottom: var(--space-2);
  font-size: var(--font-size-lg);
}

h6 {
  margin-bottom: var(--space-2);
  font-size: var(--font-size-md);
}

p {
  margin-bottom: var(--space-4);
}

small {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

strong {
  font-weight: var(--font-weight-bold);
}

/*
 * ============================================================
 * GLOBAL UTILITY CLASSES
 * ============================================================
 */

.crown-eyebrow {
  margin: 0 0 var(--space-2);
  color: var(--color-brand-hover);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-label);
  line-height: 1.2;
  text-transform: uppercase;
}

.crown-page-title {
  margin: 0;
  color: var(--color-text-strong);
  font-size: clamp(2rem, 4vw, var(--font-size-5xl));
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-tight);
}

.crown-page-subtitle {
  max-width: 46rem;
  margin: var(--space-3) 0 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-body);
}

.crown-section-title {
  margin: 0;
  color: var(--color-text-strong);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
}

.crown-label {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-wide);
  text-transform: uppercase;
}

.crown-kpi-value {
  color: var(--color-text-strong);
  font-size: clamp(2.5rem, 5vw, var(--font-size-6xl));
  font-weight: var(--font-weight-extrabold);
  letter-spacing: var(--letter-spacing-tight);
  line-height: 1;
}

.crown-kpi-label {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

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

.crown-gold-text {
  color: var(--color-text-gold);
}

.crown-divider {
  width: 100%;
  height: 1px;
  margin: var(--space-6) 0;
  border: 0;
  background: var(--color-divider);
}

.crown-surface {
  background: var(--color-surface);
}

.crown-surface-muted {
  background: var(--color-surface-muted);
}

.crown-shadow {
  box-shadow: var(--shadow-md);
}

.crown-rounded {
  border-radius: var(--radius-lg);
}

.crown-hidden {
  display: none !important;
}

/*
 * ============================================================
 * ACCESSIBILITY
 * ============================================================
 */

:focus-visible {
  outline: 2px solid var(--color-brand);
  outline-offset: 3px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  box-shadow: var(--shadow-focus);
}

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

/*
 * ============================================================
 * RESPONSIVE TOKEN ADJUSTMENTS
 * ============================================================
 */

@media (max-width: 900px) {
  :root {
    --sidebar-width: 100%;
    --page-gutter: 1rem;
    --section-gap: 1.5rem;
    --card-padding: 1.125rem;
  }
}