/* ==========================================================================
   CaraHealth Design System & Themes
   Tailored for Comfort, Dignity, and High Accessibility
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Outfit:wght@500;600;700&display=swap');

:root {
  /* Dynamic Accessible Font Sizing */
  --font-base-multiplier: 1;
  --font-base: calc(18px * var(--font-base-multiplier));
  --font-sm: calc(0.88rem * var(--font-base-multiplier));
  --font-md: calc(1rem * var(--font-base-multiplier));
  --font-lg: calc(1.18rem * var(--font-base-multiplier));
  --font-xl: calc(1.4rem * var(--font-base-multiplier));
  --font-2xl: calc(1.8rem * var(--font-base-multiplier));
  --font-3xl: calc(2.25rem * var(--font-base-multiplier));
  --font-display: calc(2.8rem * var(--font-base-multiplier));

  --font-family-body: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-family-display: 'Outfit', 'Plus Jakarta Sans', sans-serif;

  /* Line Heights for Supreme Readability */
  --leading-tight: 1.25;
  --leading-normal: 1.55;
  --leading-relaxed: 1.7;

  /* Spacing Scale (Generous for large touch targets) */
  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Border Radii (Soft, friendly curves) */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);

  /* Touch Targets (Strict minimum 48px to 54px for older adults) */
  --min-touch-size: 52px;

  /* ========================================================================
     Warm Light Palette (Default: Gentle on the eyes, avoids harsh white glare)
     ======================================================================== */
  --bg-app: #fbf9f5;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-subtle: #f3efe8;
  --bg-accent-soft: #fbf1ed;

  --border-subtle: #e6dfd5;
  --border-medium: #d4cac0;
  --border-focus: #b84b53;

  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  /* Brand Colors: Warm Graceful Terracotta / Rose */
  --brand-primary: #b84b53;
  --brand-primary-hover: #9c3c43;
  --brand-secondary: #6e4c5e;
  --brand-secondary-soft: #f4ecf1;
  --brand-accent: #3b6070;

  /* AHA Blood Pressure Health Range Colors */
  --status-normal-text: #1b5e39;
  --status-normal-bg: #eaf6ee;
  --status-normal-border: #8ec9a3;
  --status-normal-dot: #2d8a54;

  --status-elevated-text: #854d0e;
  --status-elevated-bg: #fef9c3;
  --status-elevated-border: #facc15;
  --status-elevated-dot: #ca8a04;

  --status-stage1-text: #9a3412;
  --status-stage1-bg: #ffedd5;
  --status-stage1-border: #fb923c;
  --status-stage1-dot: #ea580c;

  --status-stage2-text: #991b1b;
  --status-stage2-bg: #fee2e2;
  --status-stage2-border: #f87171;
  --status-stage2-dot: #dc2626;

  --status-crisis-text: #701a75;
  --status-crisis-bg: #fae8ff;
  --status-crisis-border: #f472b6;
  --status-crisis-dot: #be185d;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.05);
  --shadow-md: 0 6px 18px rgba(30, 41, 59, 0.07);
  --shadow-lg: 0 12px 32px rgba(30, 41, 59, 0.1);
  --shadow-focus: 0 0 0 3px rgba(184, 75, 83, 0.25);
}

/* ==========================================================================
   Font Size Scaling Modes
   ========================================================================== */
html[data-text-size="large"] {
  --font-base-multiplier: 1.15;
  --min-touch-size: 56px;
}

html[data-text-size="xlarge"] {
  --font-base-multiplier: 1.3;
  --min-touch-size: 60px;
}

/* ==========================================================================
   Serene Evening Dark Mode (Gentle, low-contrast midnight for evening logging)
   ========================================================================== */
html[data-theme="dark"] {
  --bg-app: #121620;
  --bg-surface: #1a2130;
  --bg-surface-elevated: #222b3d;
  --bg-subtle: #252f42;
  --bg-accent-soft: #30262b;

  --border-subtle: #2d384e;
  --border-medium: #3f4c68;
  --border-focus: #f3838b;

  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #121620;

  /* Dark mode brand */
  --brand-primary: #e66a74;
  --brand-primary-hover: #fa828c;
  --brand-secondary: #c98bab;
  --brand-secondary-soft: #382531;
  --brand-accent: #78a9c2;

  /* AHA Range Colors Dark */
  --status-normal-text: #6ee7b7;
  --status-normal-bg: #064e3b;
  --status-normal-border: #059669;
  --status-normal-dot: #10b981;

  --status-elevated-text: #fde047;
  --status-elevated-bg: #451a03;
  --status-elevated-border: #ca8a04;
  --status-elevated-dot: #eab308;

  --status-stage1-text: #fdba74;
  --status-stage1-bg: #431407;
  --status-stage1-border: #ea580c;
  --status-stage1-dot: #f97316;

  --status-stage2-text: #fca5a5;
  --status-stage2-bg: #450a0a;
  --status-stage2-border: #dc2626;
  --status-stage2-dot: #ef4444;

  --status-crisis-text: #f0abfc;
  --status-crisis-bg: #4a044e;
  --status-crisis-border: #c026d3;
  --status-crisis-dot: #e879f9;

  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.45);
  --shadow-focus: 0 0 0 3px rgba(243, 131, 139, 0.35);
}