/* ========================================================================== 
   Variables
   ========================================================================== */
:root {
  /* Color Scheme (Dark Fantasy) */
  color-scheme: dark;
  --color-background: #0a0e14; /* shadow black */
  --color-surface-1: #0e141b;  /* deep panel */
  --color-surface-2: #121a23;  /* layered panel */
  --color-surface-3: #182332;  /* elevated */
  --color-border: #283549;     /* cool slate border */

  --color-text: #e6e9f2;       /* misted white */
  --color-text-muted: #a8b0c2; /* subdued */

  --color-primary: #0f3d66;    /* deep sapphire */
  --color-secondary: #6a3fb8;  /* mystical purple */
  --color-accent: #ffb84d;     /* glowing amber */

  --color-success: #22c55e;    /* verdant */
  --color-warning: #f59e0b;    /* ember */
  --color-danger:  #ef4444;    /* crimson */

  /* Neutral Grays (cool, cinematic) */
  --gray-50:  #f4f7fb;
  --gray-100: #e9eef6;
  --gray-200: #cfd9e8;
  --gray-300: #b5c3d7;
  --gray-400: #9aacc5;
  --gray-500: #8096b3;
  --gray-600: #667d98;
  --gray-700: #4c6278;
  --gray-800: #33475a;
  --gray-900: #1d2a37;

  /* Typography */
  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --font-serif: "Cinzel", "Merriweather", Georgia, Cambria, "Times New Roman", Times, serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --text-size-xs: 0.75rem; /* 12px */
  --text-size-sm: 0.875rem; /* 14px */
  --text-size-md: 1rem; /* 16px */
  --text-size-lg: 1.125rem; /* 18px */
  --text-size-xl: 1.25rem; /* 20px */
  --text-size-2xl: 1.5rem; /* 24px */
  --text-size-3xl: 1.875rem; /* 30px */

  --line-tight: 1.2;
  --line-normal: 1.5;
  --line-relaxed: 1.7;

  /* Spacing Scale (0–96px in 4px steps) */
  --space-0: 0px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-9: 36px;
  --space-10: 40px;
  --space-11: 44px;
  --space-12: 48px;
  --space-13: 52px;
  --space-14: 56px;
  --space-15: 60px;
  --space-16: 64px;
  --space-17: 68px;
  --space-18: 72px;
  --space-19: 76px;
  --space-20: 80px;
  --space-21: 84px;
  --space-22: 88px;
  --space-23: 92px;
  --space-24: 96px;

  /* Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-pill: 999px;

  /* Shadows (cinematic, layered) */
  --shadow-ambient: 0 1px 2px rgba(0,0,0,0.35), 0 8px 24px rgba(5,10,20,0.45);
  --shadow-elevated: 0 2px 8px rgba(0,0,0,0.4), 0 20px 40px rgba(10,15,30,0.55);
  --shadow-deep: 0 10px 30px rgba(0,0,0,0.6), 0 40px 80px rgba(6,10,20,0.6);

  /* Transitions */
  --dur-fast: 120ms;
  --dur-base: 200ms;
  --dur-slow: 380ms;
  --ease-standard: cubic-bezier(0.2, 0.6, 0.2, 1);
  --ease-dramatic: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-max: 80rem;  /* ~1280px */
  --container-wide: 100rem; /* ~1600px */
  --measure: 70ch;          /* comfortable line length */

  /* Gradients / Effects */
  --gradient-hero: radial-gradient(1000px 600px at 20% -10%, rgba(106,63,184,0.18) 0%, rgba(106,63,184,0) 60%), radial-gradient(1200px 700px at 80% 10%, rgba(15,61,102,0.18) 0%, rgba(15,61,102,0) 60%);

  /* Form accent for native controls */
  accent-color: var(--color-accent);
}

/* ========================================================================== 
   Reset / Normalize
   ========================================================================== */
* {
  box-sizing: border-box;
}

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

html, body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd {
  margin: 0;
}

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

body {
  min-height: 100vh;
}

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

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

/* Improve text rendering */
body, input, textarea, select, button {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Remove list styles on ul, ol elements with a list role */
ul[role="list"], ol[role="list"] { list-style: none; }

/* Respect reduced motion */
@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;
  }
}

/* ========================================================================== 
   Base Styles
   ========================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--text-size-md);
  line-height: var(--line-relaxed);
  background: var(--color-background);
  background-image: var(--gradient-hero);
  color: var(--color-text);
}

main { display: block; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  line-height: var(--line-tight);
  color: var(--color-text);
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.25rem, 1.6rem + 2.2vw, 4rem); margin-block: var(--space-8) var(--space-4); }
h2 { font-size: clamp(1.8rem, 1.2rem + 1.6vw, 3rem);  margin-block: var(--space-7) var(--space-4); }
h3 { font-size: clamp(1.5rem, 1.1rem + 1vw, 2.25rem); margin-block: var(--space-6) var(--space-3); }
h4 { font-size: clamp(1.25rem, 1rem + 0.6vw, 1.75rem); margin-block: var(--space-5) var(--space-3); }
h5 { font-size: 1.125rem; margin-block: var(--space-4) var(--space-2); }
h6 { font-size: 1rem;    margin-block: var(--space-3) var(--space-2); color: var(--color-text-muted); }

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

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

strong { color: #f0f3ff; font-weight: 700; }

hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-8);
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--dur-base) var(--ease-standard), text-shadow var(--dur-base) var(--ease-dramatic);
}

a:hover {
  color: #ffd58a;
  text-shadow: 0 0 12px rgba(255, 184, 77, 0.45);
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  text-decoration: underline;
}

code, pre, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.95em;
}

/* ========================================================================== 
   Utilities
   ========================================================================== */
.container {
  width: min(100%, var(--container-max));
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--wide {
  width: min(100%, var(--container-wide));
}

.section { padding-block: var(--space-12); }
.section--tight { padding-block: var(--space-8); }

.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }

.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-12 { gap: var(--space-12); }

.pad-4 { padding: var(--space-4); }
.pad-6 { padding: var(--space-6); }
.pad-8 { padding: var(--space-8); }
.m-0 { margin: 0; }
.mt-4 { margin-top: var(--space-4); }
.mb-4 { margin-bottom: var(--space-4); }

.text-center { text-align: center; }

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

/* ========================================================================== 
   Components
   ========================================================================== */
/* Buttons */
.btn {
  --btn-bg: var(--color-primary);
  --btn-fg: #eaf2ff;
  --btn-border: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: calc(var(--space-3) + 1px) var(--space-5);
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, color-mix(in oklab, var(--btn-bg), white 6%), var(--btn-bg));
  color: var(--btn-fg);
  box-shadow: var(--shadow-ambient);
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-dramatic), box-shadow var(--dur-base) var(--ease-standard), background-color var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard), color var(--dur-base) var(--ease-standard);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-elevated);
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-ambient);
}

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

.btn[disabled], .btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  filter: saturate(70%);
}

.btn--primary { --btn-bg: var(--color-primary); }
.btn--secondary { --btn-bg: var(--color-secondary); }
.btn--accent { --btn-bg: var(--color-accent); --btn-fg: #1a1206; color: #1a1206!important; }
.btn--success { --btn-bg: var(--color-success); --btn-fg: #06140a; }
.btn--warning { --btn-bg: var(--color-warning); --btn-fg: #1a0f03; }
.btn--danger  { --btn-bg: var(--color-danger);  }
.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--color-text);
  --btn-border: var(--color-border);
  background: transparent;
}
.btn--ghost:hover { background: rgba(255,255,255,0.03); }

/* Inputs */
.input, input[type="text"], input[type="email"], input[type="password"], input[type="search"], input[type="number"], input[type="url"], textarea, select {
  appearance: none;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface-2);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--dur-base) var(--ease-standard), box-shadow var(--dur-base) var(--ease-standard), background-color var(--dur-base) var(--ease-standard);
}

.input::placeholder, input::placeholder, textarea::placeholder { color: var(--color-text-muted); }

.input:focus, input:focus, textarea:focus, select:focus {
  border-color: color-mix(in oklab, var(--color-accent), transparent 25%);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-accent), transparent 70%);
}

fieldset { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-4); }
legend { padding: 0 var(--space-2); color: var(--color-text-muted); }

/* Cards */
.card {
  background: linear-gradient(180deg, color-mix(in oklab, var(--color-surface-1), white 2%), var(--color-surface-1));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-ambient);
  padding: var(--space-6);
}

.card--elevated {
  background: linear-gradient(180deg, color-mix(in oklab, var(--color-surface-3), white 3%), var(--color-surface-3));
  box-shadow: var(--shadow-elevated);
}

.card__title { font-family: var(--font-serif); font-size: var(--text-size-2xl); margin-bottom: var(--space-3); }
.card__meta { color: var(--color-text-muted); font-size: var(--text-size-sm); }

/* Media frame utility for high-res imagery */
.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: #000;
  box-shadow: var(--shadow-deep);
}

.media-frame img, .media-frame video { display: block; width: 100%; height: auto; }

/* Badges */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--radius-pill);
  font-size: var(--text-size-sm);
  line-height: 1.4;
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text);
}
.badge--accent { background: color-mix(in oklab, var(--color-accent), black 75%); color: #ffe8bd; border-color: color-mix(in oklab, var(--color-accent), black 55%); }

/* Tables (basic) */
.table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}
.table th, .table td {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
}
.table thead th {
  color: #cfd7ea;
  background: color-mix(in oklab, var(--color-surface-1), white 2%);
}
.table tbody tr:hover { background: rgba(255,255,255,0.02); }

/* ========================================================================== 
   Accessibility
   ========================================================================== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Provide visible focus for interactive elements */
a[href], button, [role="button"], input, textarea, select, summary, [tabindex]:not([tabindex="-1"]) {
  -webkit-tap-highlight-color: transparent;
}

details > summary { cursor: pointer; }

/* High-contrast helper */
@media (prefers-contrast: more) {
  :root { --color-border: #48607d; }
  a:hover { text-shadow: none; }
  .btn { box-shadow: none; }
}

/* Optional light-scheme fallback (keeps mood but increases contrast) */
@media (prefers-color-scheme: light) {
  :root { color-scheme: light dark; }
}