/* ==========================================================================
   TINYSTRIDES — DESIGN TOKENS & THEMING
   ========================================================================== */
:root {
  --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  
  /* Dark Theme Default (Sleek Obsidian & Electric Cyan/Indigo) */
  --bg-base: #090d16;
  --bg-surface: #0f172a;
  --bg-card: rgba(17, 24, 39, 0.9);
  --bg-card-hover: rgba(30, 41, 59, 0.98);
  --bg-input: #0d1527;
  --bg-input-focus: #111c34;
  --bg-accent-soft: rgba(99, 102, 241, 0.12);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --border-subtle: rgba(255, 255, 255, 0.1);
  --border-input: rgba(255, 255, 255, 0.14);
  --border-accent: rgba(99, 102, 241, 0.45);
  --border-focus: #818cf8;

  --accent-primary: #6366f1;   /* Stride Indigo */
  --accent-secondary: #06b6d4; /* Electric Cyan */
  --accent-emerald: #10b981;   /* Growth Green */
  --accent-amber: #f59e0b;     /* Spark Amber */
  --accent-rose: #f43f5e;
  --accent-partner: #a855f7;
  --accent-google: #4285F4;

  --ring-track: rgba(255, 255, 255, 0.06);
  --ring-progress: #6366f1;
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px -5px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 24px rgba(99, 102, 241, 0.35);
  --shadow-input-focus: 0 0 0 3px rgba(99, 102, 241, 0.25), 0 2px 8px rgba(0, 0, 0, 0.3);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-base: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.94);
  --bg-card-hover: #ffffff;
  --bg-input: #f1f5f9;
  --bg-input-focus: #ffffff;
  --bg-accent-soft: rgba(99, 102, 241, 0.08);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  /* #94a3b8 is too faint on white cards; keep supporting copy readable. */
  --text-muted: #64748b;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-input: rgba(0, 0, 0, 0.14);
  --border-accent: rgba(99, 102, 241, 0.3);
  --border-focus: #6366f1;

  --ring-track: rgba(0, 0, 0, 0.06);
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);
  --shadow-input-focus: 0 0 0 3px rgba(99, 102, 241, 0.2), 0 2px 6px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: var(--font-stack);
  background-color: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.14) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.1) 0px, transparent 50%);
  background-attachment: fixed;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--border-accent);
  border-radius: var(--radius-full);
}