/*
 * Share Beauty SPA — Design Tokens
 * Philosophy: Spa boutique editorial
 *
 * Typography pairing: Cormorant Garamond for expressive display type and
 * DM Sans for functional UI/body copy. Load the font files or providers in
 * the application entry point; these fallbacks keep the system resilient.
 */

:root {
  color-scheme: light;

  /* Primitive palette */
  --color-ink-950: #171415;
  --color-ink-900: #211c1d;
  --color-ink-800: #30292a;
  --color-ink-700: #4a4142;
  --color-ink-600: #62585a;
  --color-ink-500: #7b7071;
  --color-ink-300: #b9afb0;
  --color-ink-200: #d8d0d0;
  --color-ink-100: #eee9e8;
  --color-ink-50: #f7f4f3;

  --color-rose-900: #55343d;
  --color-rose-800: #68414c;
  --color-rose-700: #7b4e59;
  --color-rose-600: #946774;
  --color-rose-500: #ad7d88;
  --color-rose-300: #d3aeb6;
  --color-rose-100: #f1e1e3;
  --color-rose-50: #f9f1f2;

  --color-gold-700: #956d2b;
  --color-gold-600: #ae853e;
  --color-gold-500: #c6a15a;
  --color-gold-300: #dfc788;
  --color-gold-100: #f5ecd8;

  /* Semantic color tokens — light mode */
  --color-bg-primary: var(--color-ink-50);
  --color-bg-secondary: #fffdfb;
  --color-bg-tertiary: var(--color-ink-100);
  --color-bg-inverse: var(--color-ink-950);
  --color-bg-accent: var(--color-rose-50);
  --color-bg-accent-strong: var(--color-rose-700);

  --color-text-primary: var(--color-ink-900);
  --color-text-secondary: var(--color-ink-700);
  --color-text-tertiary: var(--color-ink-600);
  --color-text-inverse: #fffaf8;
  --color-text-link: var(--color-rose-900);
  --color-text-accent: var(--color-rose-900);

  --color-border-primary: var(--color-ink-200);
  --color-border-secondary: var(--color-ink-100);
  --color-border-focus: var(--color-gold-700);

  --color-accent-primary: var(--color-rose-700);
  --color-accent-primary-hover: var(--color-rose-800);
  --color-accent-primary-active: var(--color-rose-900);
  --color-accent-secondary: var(--color-ink-950);
  --color-accent-gold: var(--color-gold-600);

  --color-status-success: #2f6b4f;
  --color-status-warning: #8a5c22;
  --color-status-error: #a14343;
  --color-status-info: #3d6474;
  --color-surface-overlay: rgb(23 20 21 / 72%);

  /* Typography */
  --font-family-display: "Cormorant Garamond", "Iowan Old Style", "Baskerville", Georgia, serif;
  --font-family-body: "DM Sans", "Avenir Next", Avenir, Helvetica, Arial, sans-serif;
  --font-family-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --font-size-xs: 0.6875rem;   /* 11px */
  --font-size-sm: 0.8125rem;   /* 13px */
  --font-size-base: 1rem;       /* 16px */
  --font-size-md: 1.125rem;     /* 18px */
  --font-size-lg: 1.375rem;     /* 22px */
  --font-size-xl: 1.75rem;      /* 28px */
  --font-size-2xl: 2.25rem;     /* 36px */
  --font-size-3xl: 3rem;        /* 48px */
  --font-size-4xl: clamp(3.5rem, 15vw, 7.5rem);

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.05;
  --line-height-snug: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  --letter-spacing-tight: -0.035em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.12em;
  --letter-spacing-widest: 0.2em;

  /* Spacious 8px editorial scale */
  --space-0: 0;
  --space-1: 0.125rem;  /* 2px */
  --space-2: 0.25rem;   /* 4px */
  --space-3: 0.5rem;    /* 8px */
  --space-4: 0.75rem;   /* 12px */
  --space-5: 1rem;      /* 16px */
  --space-6: 1.5rem;    /* 24px */
  --space-7: 2rem;      /* 32px */
  --space-8: 3rem;      /* 48px */
  --space-9: 4rem;      /* 64px */
  --space-10: 6rem;     /* 96px */
  --space-11: 8rem;     /* 128px */
  --space-12: 12rem;    /* 192px */

  /* Layout */
  --max-width-content: 68ch;
  --max-width-wide: 90rem;
  --max-width-page: 120rem;
  --gutter-mobile: var(--space-5);
  --gutter-tablet: var(--space-7);
  --gutter-desktop: var(--space-9);

  --border-radius-sm: 0.25rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  --border-radius-full: 999px;

  --shadow-sm: 0 2px 12px rgb(23 20 21 / 6%);
  --shadow-md: 0 12px 32px rgb(23 20 21 / 10%);
  --shadow-lg: 0 24px 64px rgb(23 20 21 / 16%);
  --shadow-focus: 0 0 0 3px rgb(174 133 62 / 38%);

  /* Motion */
  --duration-instant: 50ms;
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --duration-slower: 600ms;
  --easing-default: cubic-bezier(0.4, 0, 0.2, 1);
  --easing-in: cubic-bezier(0.4, 0, 1, 1);
  --easing-out: cubic-bezier(0, 0, 0.2, 1);
  --easing-editorial: cubic-bezier(0.22, 1, 0.36, 1);

  /* Responsive breakpoints */
  --breakpoint-sm: 23.4375rem; /* 375px */
  --breakpoint-md: 48rem;       /* 768px */
  --breakpoint-lg: 64rem;       /* 1024px */
  --breakpoint-xl: 80rem;       /* 1280px */
  --breakpoint-2xl: 96rem;      /* 1536px */

  /* Component tokens */
  --button-height-sm: 2.5rem;
  --button-height-md: 3rem;
  --button-height-lg: 3.5rem;
  --input-height: 3.25rem;
  --focus-outline: 2px solid var(--color-border-focus);
  --focus-offset: 3px;
  --overlay-gradient: linear-gradient(180deg, rgb(23 20 21 / 4%) 20%, rgb(23 20 21 / 78%) 100%);
}

[data-theme="dark"] {
  color-scheme: dark;

  --color-bg-primary: #211c1d;
  --color-bg-secondary: #2b2425;
  --color-bg-tertiary: #382f30;
  --color-bg-inverse: #f7f1ed;
  --color-bg-accent: #3b292e;
  --color-bg-accent-strong: var(--color-rose-500);

  --color-text-primary: #f3ece8;
  --color-text-secondary: #d2c5c2;
  --color-text-tertiary: #aa9c9a;
  --color-text-inverse: var(--color-ink-950);
  --color-text-link: var(--color-rose-300);
  --color-text-accent: var(--color-rose-300);

  --color-border-primary: #514748;
  --color-border-secondary: #3d3435;
  --color-border-focus: var(--color-gold-300);

  --color-accent-primary: var(--color-rose-500);
  --color-accent-primary-hover: var(--color-rose-300);
  --color-accent-primary-active: #e1bbc2;
  --color-accent-secondary: #f3ece8;
  --color-accent-gold: var(--color-gold-300);

  --color-status-success: #8ec6a5;
  --color-status-warning: #e0b573;
  --color-status-error: #e59b9b;
  --color-status-info: #9bc6d4;
  --color-surface-overlay: rgb(0 0 0 / 76%);

  --shadow-sm: 0 2px 12px rgb(0 0 0 / 18%);
  --shadow-md: 0 12px 32px rgb(0 0 0 / 28%);
  --shadow-lg: 0 24px 64px rgb(0 0 0 / 42%);
  --shadow-focus: 0 0 0 3px rgb(223 199 136 / 38%);
  --overlay-gradient: linear-gradient(180deg, rgb(0 0 0 / 8%) 20%, rgb(0 0 0 / 84%) 100%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;

    --color-bg-primary: #211c1d;
    --color-bg-secondary: #2b2425;
    --color-bg-tertiary: #382f30;
    --color-bg-inverse: #f7f1ed;
    --color-bg-accent: #3b292e;
    --color-bg-accent-strong: var(--color-rose-500);
    --color-text-primary: #f3ece8;
    --color-text-secondary: #d2c5c2;
    --color-text-tertiary: #aa9c9a;
    --color-text-inverse: var(--color-ink-950);
    --color-text-link: var(--color-rose-300);
    --color-text-accent: var(--color-rose-300);
    --color-border-primary: #514748;
    --color-border-secondary: #3d3435;
    --color-border-focus: var(--color-gold-300);
    --color-accent-primary: var(--color-rose-500);
    --color-accent-primary-hover: var(--color-rose-300);
    --color-accent-primary-active: #e1bbc2;
    --color-accent-secondary: #f3ece8;
    --color-accent-gold: var(--color-gold-300);
    --color-status-success: #8ec6a5;
    --color-status-warning: #e0b573;
    --color-status-error: #e59b9b;
    --color-status-info: #9bc6d4;
    --color-surface-overlay: rgb(0 0 0 / 76%);
    --shadow-sm: 0 2px 12px rgb(0 0 0 / 18%);
    --shadow-md: 0 12px 32px rgb(0 0 0 / 28%);
    --shadow-lg: 0 24px 64px rgb(0 0 0 / 42%);
    --shadow-focus: 0 0 0 3px rgb(223 199 136 / 38%);
    --overlay-gradient: linear-gradient(180deg, rgb(0 0 0 / 8%) 20%, rgb(0 0 0 / 84%) 100%);
  }
}

@media (min-width: 48rem) {
  :root {
    --gutter-mobile: var(--gutter-tablet);
  }
}

@media (min-width: 64rem) {
  :root {
    --gutter-mobile: var(--gutter-desktop);
  }
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast: 1ms;
    --duration-normal: 1ms;
    --duration-slow: 1ms;
    --duration-slower: 1ms;
  }
}