/* ===============================================================
   Bayfront Arts — Design Tokens & Base Stylesheet
   Palette inspired by Pearl River waters, Hong Kong harbour dusk,
   and the warm paper/bamboo tones of young-audience stagecraft.
   =============================================================== */

:root,
[data-theme='light'] {
  /* Surfaces — warm paper, ivory, bone */
  --color-bg: #F5F1EA;
  --color-surface: #FBF8F2;
  --color-surface-2: #FFFDF8;
  --color-surface-offset: #EDE7DC;
  --color-surface-offset-2: #E4DCCC;
  --color-surface-dynamic: #D9D0BE;
  --color-divider: #D4CBB8;
  --color-border: #C3B99F;

  /* Text — deep harbour ink */
  --color-text: #1A1D26;
  --color-text-muted: #5C5E68;
  --color-text-faint: #9A9B9F;
  --color-text-inverse: #FBF8F2;

  /* Primary Accent — Harbour Teal */
  --color-primary: #0E4C5C;
  --color-primary-hover: #0A3844;
  --color-primary-active: #06262F;
  --color-primary-highlight: #C7D8DC;

  /* Secondary Accent — Lantern Coral (used sparingly for editorial punch) */
  --color-accent: #D24D3D;
  --color-accent-hover: #B53E2E;
  --color-accent-highlight: #F0D2CC;

  /* Success / Warning / Error — quiet */
  --color-success: #2F6A3E;
  --color-warning: #A65A16;
  --color-error: #A63441;

  /* Radius */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 420ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(26, 29, 38, 0.06);
  --shadow-md: 0 6px 18px rgba(26, 29, 38, 0.09);
  --shadow-lg: 0 18px 40px rgba(26, 29, 38, 0.14);

  /* Content widths */
  --content-narrow: 680px;
  --content-default: 1080px;
  --content-wide: 1360px;
  --gutter: clamp(1.5rem, 4vw, 3rem);

  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.82rem + 0.25vw, 0.9375rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.2vw, 2.125rem);
  --text-2xl: clamp(2rem, 1.4rem + 2.4vw, 3.25rem);
  --text-3xl: clamp(2.75rem, 1.6rem + 4vw, 4.75rem);
  --text-hero: clamp(3.25rem, 1rem + 6.5vw, 7.25rem);

  /* 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;

  /* Fonts */
  --font-display: 'Fraunces', 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
}

/* Dark mode — harbour at night */
[data-theme='dark'] {
  --color-bg: #121418;
  --color-surface: #181B20;
  --color-surface-2: #1F2229;
  --color-surface-offset: #1A1D22;
  --color-surface-offset-2: #23272F;
  --color-surface-dynamic: #2A2E37;
  --color-divider: #262A31;
  --color-border: #363B45;

  --color-text: #E8E4D9;
  --color-text-muted: #8A8C92;
  --color-text-faint: #555761;
  --color-text-inverse: #121418;

  --color-primary: #4FA8B8;
  --color-primary-hover: #6DBDCB;
  --color-primary-active: #8FD0DB;
  --color-primary-highlight: #1E383F;

  --color-accent: #E57A6B;
  --color-accent-hover: #EE9384;
  --color-accent-highlight: #3A1F1A;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #121418;
    --color-surface: #181B20;
    --color-surface-2: #1F2229;
    --color-surface-offset: #1A1D22;
    --color-surface-offset-2: #23272F;
    --color-surface-dynamic: #2A2E37;
    --color-divider: #262A31;
    --color-border: #363B45;
    --color-text: #E8E4D9;
    --color-text-muted: #8A8C92;
    --color-text-faint: #555761;
    --color-text-inverse: #121418;
    --color-primary: #4FA8B8;
    --color-primary-hover: #6DBDCB;
    --color-primary-active: #8FD0DB;
    --color-primary-highlight: #1E383F;
    --color-accent: #E57A6B;
    --color-accent-hover: #EE9384;
    --color-accent-highlight: #3A1F1A;
  }
}

/* Reset & base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

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

h1, h2, h3, h4, h5, h6 {
  text-wrap: balance;
  line-height: 1.1;
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.015em;
}

p, li, figcaption {
  text-wrap: pretty;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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

button {
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
  font: inherit;
}

a, button, [role='button'], input, textarea, select {
  transition: color var(--transition-interactive),
              background-color var(--transition-interactive),
              border-color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              transform var(--transition-interactive);
}

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

/* Layout utilities */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.container--narrow {
  max-width: var(--content-narrow);
}

.container--default {
  max-width: var(--content-default);
}

.section {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}

.section--tight {
  padding-block: clamp(var(--space-12), 6vw, var(--space-20));
}

/* Eyebrow label — the institutional signal */
.eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

[data-theme='dark'] .eyebrow,
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .eyebrow { color: var(--color-primary); }
}

.eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: currentColor;
}

.eyebrow--no-mark::before { display: none; }