/* ==========================================================================
    The Precision Medicine Institute - Base Styling & Contemporary Tokens
   ========================================================================== */

:root {
  /* Color Palette - Dark Mode (Default contemporary biotech) */
  --bg-canvas: #090e17;
  --bg-gradient: radial-gradient(circle at 20% 15%, #0f1c30 0%, #090e17 70%);
  --bg-surface: rgba(15, 23, 42, 0.72);
  --bg-surface-elevated: rgba(22, 33, 56, 0.82);
  --bg-surface-hover: rgba(30, 41, 59, 0.9);
  --bg-card: rgba(15, 23, 42, 0.65);
  --bg-overlay: rgba(4, 8, 16, 0.85);

  --border-subtle: rgba(148, 163, 184, 0.12);
  --border-medium: rgba(148, 163, 184, 0.24);
  --border-glow: rgba(6, 182, 212, 0.35);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #090e17;

  /* Bio-Tech & Precision Brand Accents */
  --color-cyan: #06b6d4;
  --color-cyan-glow: rgba(6, 182, 212, 0.25);
  --color-cyan-bg: rgba(6, 182, 212, 0.12);

  --color-emerald: #10b981;
  --color-emerald-glow: rgba(16, 185, 129, 0.25);
  --color-emerald-bg: rgba(16, 185, 129, 0.12);

  --color-violet: #8b5cf6;
  --color-violet-glow: rgba(139, 92, 246, 0.25);
  --color-violet-bg: rgba(139, 92, 246, 0.12);

  --color-amber: #f59e0b;
  --color-rose: #f43f5e;
  --color-rose-bg: rgba(244, 63, 94, 0.12);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Roboto Mono', Menlo, monospace;

  /* Elevations & Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 24px -4px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 38px -6px rgba(0, 0, 0, 0.5), 0 0 20px var(--color-cyan-glow);
  --shadow-glow: 0 0 25px var(--color-cyan-glow);

  /* Glassmorphism & Blurs */
  --glass-blur: blur(14px);
  --glass-card-bg: rgba(15, 23, 42, 0.65);
  --glass-card-border: 1px solid rgba(148, 163, 184, 0.14);

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

/* Light Mode Overrides */
[data-theme="light"] {
  --bg-canvas: #f8fafc;
  --bg-gradient: radial-gradient(circle at 20% 15%, #edf2f7 0%, #f8fafc 70%);
  --bg-surface: rgba(255, 255, 255, 0.88);
  --bg-surface-elevated: rgba(255, 255, 255, 0.96);
  --bg-surface-hover: rgba(241, 245, 249, 0.95);
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-overlay: rgba(15, 23, 42, 0.6);

  --border-subtle: rgba(148, 163, 184, 0.25);
  --border-medium: rgba(100, 116, 139, 0.35);
  --border-glow: rgba(2, 132, 199, 0.3);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #f8fafc;

  --color-cyan: #0284c7;
  --color-cyan-glow: rgba(2, 132, 199, 0.18);
  --color-cyan-bg: rgba(2, 132, 199, 0.08);

  --color-emerald: #059669;
  --color-emerald-glow: rgba(5, 150, 105, 0.18);
  --color-emerald-bg: rgba(5, 150, 105, 0.08);

  --color-violet: #7c3aed;
  --color-violet-glow: rgba(124, 58, 237, 0.18);
  --color-violet-bg: rgba(124, 58, 237, 0.08);

  --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 20px -4px rgba(15, 23, 42, 0.1);
  --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12), 0 0 15px rgba(2, 132, 199, 0.15);
  --shadow-glow: 0 0 20px rgba(2, 132, 199, 0.15);

  --glass-card-bg: rgba(255, 255, 255, 0.85);
  --glass-card-border: 1px solid rgba(148, 163, 184, 0.22);
}

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

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  color-scheme: dark light;
}

section {
  min-height: 100vh;
  min-height: 100dvh;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-canvas);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  padding-top: 72px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-canvas);
}

::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-cyan);
}

/* Links & Typography Basics */
a {
  color: var(--color-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  text-decoration: underline;
}

button {
  font-family: inherit;
  cursor: pointer;
}

img, svg {
  vertical-align: middle;
}