/* ============================================================
   ROSE TECH ACADEMY — Design Tokens
   Official Brand Guide:
     Sky Blue Teal  #4FA3C5
     Slate Gray     #4B5457
     Citrus Gold    #E2B557
     Warm Ivory     #F5F1ED
   ============================================================ */

:root,
[data-theme='light'] {
  /* Surfaces */
  --color-bg: #FFFFFF;
  --color-bg-home: #F5F1ED;
  --color-surface: #FFFFFF;
  --color-surface-2: #F0ECE7;
  --color-surface-offset: #EAE5DF;
  --color-surface-offset-2: #E3DDD7;
  --color-surface-dynamic: #D8D2CB;
  --color-divider: #DDD8D2;
  --color-border: #CEC8C1;

  /* Text — dark, readable */
  --color-text: #1A1E1F;
  --color-text-muted: #4B5457;
  --color-text-faint: #7A8588;
  --color-text-inverse: #FFFFFF;

  /* Primary — Sky Blue Teal */
  --color-primary: #4FA3C5;
  --color-primary-hover: #3A8EAF;
  --color-primary-active: #2B7A9A;
  --color-primary-highlight: #D6EDF5;
  --color-primary-light: #EBF5FA;

  /* Accent — Citrus Gold */
  --color-accent: #E2B557;
  --color-accent-hover: #C89E3A;
  --color-accent-active: #A88020;
  --color-accent-highlight: #FAF0D4;

  /* Dark heading color */
  --color-navy: #1A2830;
  --color-navy-light: #243848;

  /* Status */
  --color-success: #2E7D5A;
  --color-success-highlight: #C8E8D8;
  --color-warning: #C07A20;
  --color-warning-highlight: #F5E4C4;
  --color-error: #B83030;
  --color-error-highlight: #F5D0D0;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 350ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 4px rgba(26,30,31,0.08);
  --shadow-md: 0 4px 16px rgba(26,30,31,0.12);
  --shadow-lg: 0 12px 40px rgba(26,30,31,0.16);
  --shadow-xl: 0 24px 64px rgba(26,30,31,0.20);

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* 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: 'Plus Jakarta Sans', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
}

[data-theme='dark'] {
  --color-bg: #181E22;
  --color-bg-home: #181E22;
  --color-surface: #1E262C;
  --color-surface-2: #232E36;
  --color-surface-offset: #283540;
  --color-surface-offset-2: #2E3C48;
  --color-surface-dynamic: #384858;
  --color-divider: #273240;
  --color-border: #344455;
  --color-text: #F0F6FA;
  --color-text-muted: #C8DCE8;
  --color-text-faint: #8AACB8;
  --color-text-inverse: #181E22;
  --color-primary: #60B8D4;
  --color-primary-hover: #7ACCE8;
  --color-primary-active: #90D8F0;
  --color-primary-highlight: #1A3040;
  --color-primary-light: #141E28;
  --color-accent: #E8C070;
  --color-accent-hover: #F0D088;
  --color-accent-active: #F8E0A0;
  --color-accent-highlight: #2E2010;
  --color-navy: #C8DDE8;
  --color-navy-light: #A8C8D8;
  --color-success: #50A878; --color-success-highlight: #182A20;
  --color-warning: #D8A050; --color-warning-highlight: #281E08;
  --color-error: #D87070;  --color-error-highlight: #301818;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.6);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #181E22; --color-bg-home: #181E22; --color-surface: #1E262C; --color-surface-2: #232E36;
    --color-surface-offset: #283540; --color-surface-offset-2: #2E3C48;
    --color-surface-dynamic: #384858; --color-divider: #273240; --color-border: #344455;
    --color-text: #E8EEF2; --color-text-muted: #8AACB8; --color-text-faint: #4A6878;
    --color-text-inverse: #181E22;
    --color-primary: #60B8D4; --color-primary-hover: #7ACCE8;
    --color-primary-highlight: #1A3040; --color-primary-light: #141E28;
    --color-accent: #E8C070; --color-accent-highlight: #2E2010;
    --color-navy: #C8DDE8;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  }
}