/* ==========================================================================
   Speak.Hub.Landing Design Tokens
   Systematic HSL-based palette, typography, elevation, and glassmorphism tokens
   ========================================================================== */

:root {
  /* Brand Core HSL */
  --primary-h: 226;
  --primary-s: 70%;
  --primary-l: 55%;

  --accent-h: 174;
  --accent-s: 85%;
  --accent-l: 45%;

  --secondary-h: 260;
  --secondary-s: 75%;
  --secondary-l: 60%;

  /* Brand Colors */
  --color-primary: hsl(var(--primary-h), var(--primary-s), var(--primary-l));
  --color-primary-hover: hsl(var(--primary-h), var(--primary-s), 48%);
  --color-primary-active: hsl(var(--primary-h), var(--primary-s), 40%);
  --color-primary-light: hsl(var(--primary-h), 90%, 96%);
  --color-primary-glow: hsla(var(--primary-h), var(--primary-s), var(--primary-l), 0.35);

  --color-accent: hsl(var(--accent-h), var(--accent-s), var(--accent-l));
  --color-accent-hover: hsl(var(--accent-h), var(--accent-s), 38%);
  --color-accent-light: hsl(var(--accent-h), 70%, 95%);
  --color-accent-glow: hsla(var(--accent-h), var(--accent-s), var(--accent-l), 0.4);

  --color-secondary: hsl(var(--secondary-h), var(--secondary-s), var(--secondary-l));
  --color-secondary-glow: hsla(var(--secondary-h), var(--secondary-s), var(--secondary-l), 0.3);

  /* Status Colors */
  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.1);
  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.1);
  --color-info: #0ea5e9;
  --color-info-bg: rgba(14, 165, 233, 0.1);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, hsl(226, 75%, 56%) 0%, hsl(265, 80%, 60%) 100%);
  --gradient-accent: linear-gradient(135deg, hsl(174, 85%, 45%) 0%, hsl(200, 90%, 50%) 100%);
  --gradient-hero-glow: radial-gradient(circle at 50% 30%, hsla(226, 75%, 56%, 0.18) 0%, hsla(265, 80%, 60%, 0.12) 35%, transparent 70%);
  --gradient-card-border: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.02));

  /* Light Theme Surfaces & Text (Default) */
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-alt: #f1f5f9;
  --bg-surface-glass: rgba(255, 255, 255, 0.82);
  --bg-surface-hover: #f8fafc;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #64748b;
  --text-inverse: #ffffff;

  --border-subtle: #e2e8f0;
  --border-strong: #cbd5e1;
  --border-focus: var(--color-primary);

  /* Elevation Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 25px var(--color-primary-glow);
  --shadow-card: 0 10px 30px -10px rgba(15, 23, 42, 0.08);

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Sizing & Radius */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 400ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --container-max-width: 1240px;
  --header-height: 76px;
  --z-header: 1000;
  --z-modal: 2000;
  --z-toast: 3000;
  --z-floating: 1500;
}

/* ==========================================================================
   Dark Mode Theme Overrides
   ========================================================================== */
[data-theme="dark"] {
  --bg-app: #080c14;
  --bg-surface: #0f1626;
  --bg-surface-alt: #162035;
  --bg-surface-glass: rgba(15, 22, 38, 0.78);
  --bg-surface-hover: #1c2842;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  --text-inverse: #0f172a;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.6);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.7);
  --shadow-card: 0 14px 36px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 35px rgba(67, 97, 238, 0.45);

  --gradient-hero-glow: radial-gradient(circle at 50% 25%, hsla(226, 80%, 65%, 0.22) 0%, hsla(265, 85%, 65%, 0.16) 40%, transparent 75%);
  --gradient-card-border: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.02));
}