/* ============================================
   Design Tokens — Hong Kong Casting House
   ============================================ */

:root {
  /* ===== Color System ===== */
  --ink-black: #0A0A0A;
  --ink-soft: #141414;
  --ink-elevated: #1A1A1A;
  --bone-white: #F0EDE6;
  --bone-warm: #E8E3D8;
  --bone-pure: #FAF8F3;
  --signal-red: #D0281E;
  --signal-red-deep: #A8201A;
  --signal-red-soft: #E8473D;
  --mid-grey: #5A5A5A;
  --grey-mute: #8A8A8A;
  --film-silver: #C8C4BC;
  --film-silver-dark: #9A968E;

  /* Semantic */
  --bg-primary: var(--ink-black);
  --bg-secondary: var(--bone-white);
  --text-primary: var(--bone-white);
  --text-primary-dark: var(--ink-black);
  --text-muted: var(--mid-grey);
  --text-on-bone: var(--ink-black);
  --accent: var(--signal-red);
  --border-subtle: rgba(240, 237, 230, 0.12);
  --border-on-bone: rgba(10, 10, 10, 0.12);

  /* ===== Typography ===== */
  --font-display: 'Cormorant Garamond', 'Noto Serif TC', Georgia, serif;
  --font-body: 'DM Sans', 'Noto Sans TC', system-ui, sans-serif;
  --font-label: 'Space Grotesk', 'Noto Sans TC', monospace, sans-serif;

  /* Type scale (clamp for fluid) */
  --fs-hero: clamp(4rem, 12vw, 11rem);
  --fs-display-xl: clamp(3.5rem, 9vw, 8rem);
  --fs-display-lg: clamp(2.5rem, 6vw, 5rem);
  --fs-display-md: clamp(2rem, 4vw, 3.5rem);
  --fs-display-sm: clamp(1.5rem, 2.5vw, 2.25rem);
  --fs-h1: clamp(2rem, 3.5vw, 3rem);
  --fs-h2: clamp(1.5rem, 2.5vw, 2rem);
  --fs-h3: clamp(1.25rem, 1.8vw, 1.5rem);
  --fs-lead: clamp(1.05rem, 1.4vw, 1.25rem);
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-xs: 0.75rem;
  --fs-label: 0.8125rem;

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

  /* Letter-spacing */
  --ls-tight: -0.02em;
  --ls-snug: -0.01em;
  --ls-normal: 0;
  --ls-wide: 0.05em;
  --ls-wider: 0.1em;
  --ls-widest: 0.2em;
  --ls-mega: 0.4em;

  /* Line heights */
  --lh-tight: 0.95;
  --lh-snug: 1.15;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;

  /* ===== Spacing ===== */
  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  --space-6xl: 12rem;

  /* ===== Layout ===== */
  --container-max: 1440px;
  --container-pad: clamp(1.25rem, 4vw, 3rem);
  --gutter: clamp(1rem, 2vw, 1.5rem);

  /* ===== Radius ===== */
  --r-xs: 2px;
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-pill: 999px;
  --r-circle: 50%;

  /* ===== Motion ===== */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-editorial: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --dur-fast: 200ms;
  --dur-base: 400ms;
  --dur-slow: 700ms;
  --dur-cinematic: 1200ms;

  /* ===== Z-index ===== */
  --z-base: 1;
  --z-elevated: 10;
  --z-nav: 100;
  --z-overlay: 500;
  --z-modal: 1000;
  --z-cursor: 9999;

  /* ===== Effects ===== */
  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-lifted: 0 20px 60px rgba(0, 0, 0, 0.35);
  --shadow-bone: 0 12px 36px rgba(10, 10, 10, 0.08);
  --grain-opacity: 0.04;
}

/* ===== Font face fallbacks (deferred loading) ===== */
@font-face {
  font-family: 'Cormorant Garamond';
  font-style: italic;
  font-weight: 600;
  font-display: swap;
  src: local('Cormorant Garamond SemiBold Italic');
}