/* Design system variables - Glass-morphism Edition */
:root {
  /* ===== COLOR PALETTE ===== */

  /* Primary Colors */
  --primary: #1694d0;
  --primary-hover: #1278ac;
  --primary-light: #e0f2fe;
  --primary-dark: #0c5d8a;

  /* Secondary Colors */
  --secondary: #cecece;
  --secondary-dark: #9ca3af;

  /* Dark Neutrals */
  --dark-900: #131921;
  --dark-800: #1f2937;
  --dark-700: #374151;

  /* Light Neutrals */
  --light-100: #ffffff;
  --light-200: #f3f3f3;
  --light-300: #e5e7eb;

  /* Text Colors */
  --text-primary: #1f2937;
  --text-secondary: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;

  /* Semantic Colors */
  --success: #10b981;
  --success-light: #d1fae5;
  --error: #ef4444;
  --error-light: #fee2e2;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --info: #3b82f6;
  --info-light: #dbeafe;

  /* ===== GLASS EFFECTS ===== */

  /* Background Blur */
  --glass-blur: blur(20px);
  --glass-blur-strong: blur(32px);
  --glass-blur-light: blur(12px);

  /* Glass Backgrounds (white-based) */
  --glass-bg-95: rgba(255, 255, 255, 0.95);
  --glass-bg-90: rgba(255, 255, 255, 0.9);
  --glass-bg-80: rgba(255, 255, 255, 0.8);
  --glass-bg-70: rgba(255, 255, 255, 0.7);
  --glass-bg-60: rgba(255, 255, 255, 0.6);
  --glass-bg-50: rgba(255, 255, 255, 0.5);
  --glass-bg-30: rgba(255, 255, 255, 0.3);
  --glass-bg-20: rgba(255, 255, 255, 0.2);
  --glass-bg-10: rgba(255, 255, 255, 0.1);

  /* Glass Borders */
  --glass-border-30: rgba(255, 255, 255, 0.3);
  --glass-border-20: rgba(255, 255, 255, 0.2);
  --glass-border-10: rgba(255, 255, 255, 0.1);

  /* Dark Glass Backgrounds */
  --glass-dark-bg-95: rgba(31, 41, 55, 0.95);
  --glass-dark-bg-90: rgba(31, 41, 55, 0.9);
  --glass-dark-bg-80: rgba(31, 41, 55, 0.8);

  /* ===== GRADIENTS ===== */

  /* Primary Gradients (135deg diagonal) */
  --gradient-primary: linear-gradient(135deg, #1694d0 0%, #0c5d8a 100%);
  --gradient-primary-hover: linear-gradient(135deg, #1278ac 0%, #094d72 100%);

  /* Card Overlay Gradients */
  --gradient-overlay-primary: linear-gradient(135deg, rgba(22, 148, 208, 0.08) 0%, rgba(22, 148, 208, 0.12) 100%);
  --gradient-overlay-secondary: linear-gradient(135deg, rgba(206, 206, 206, 0.08) 0%, rgba(206, 206, 206, 0.15) 100%);
  --gradient-overlay-combined: linear-gradient(135deg, rgba(22, 148, 208, 0.08) 0%, rgba(206, 206, 206, 0.12) 50%, rgba(22, 148, 208, 0.10) 100%);

  /* Background Gradients */
  --gradient-bg-light: linear-gradient(135deg, #f3f3f3 0%, #ffffff 100%);
  --gradient-bg-primary-subtle: linear-gradient(135deg, rgba(22, 148, 208, 0.03) 0%, rgba(206, 206, 206, 0.05) 100%);

  /* Footer Gradient */
  --gradient-footer: linear-gradient(135deg, #1f2937 0%, #111827 100%);

  /* Hero/Feature Section Gradients */
  --gradient-hero: linear-gradient(135deg, rgba(22, 148, 208, 0.05) 0%, rgba(243, 243, 243, 0.8) 50%, rgba(206, 206, 206, 0.1) 100%);

  /* ===== SHADOWS ===== */

  /* Glass Shadows (softer, more diffused) */
  --shadow-glass-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-glass-md: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-glass-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
  --shadow-glass-xl: 0 20px 64px rgba(0, 0, 0, 0.15);

  /* Hover Shadows (more pronounced) */
  --shadow-hover-md: 0 12px 40px rgba(0, 0, 0, 0.15);
  --shadow-hover-lg: 0 16px 56px rgba(0, 0, 0, 0.18);

  /* Inner Shadows */
  --shadow-inset: inset 0 2px 4px rgba(0, 0, 0, 0.06);

  /* Multi-layered Shadows */
  --shadow-layered: 0 4px 12px rgba(0, 0, 0, 0.08), 0 8px 24px rgba(0, 0, 0, 0.06);
  --shadow-layered-hover: 0 8px 20px rgba(0, 0, 0, 0.12), 0 12px 32px rgba(0, 0, 0, 0.08);

  /* ===== TYPOGRAPHY ===== */

  /* Font Families */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-family-mono: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;

  /* Font Sizes */
  --font-size-xs: 0.75rem;        /* 12px */
  --font-size-sm: 0.875rem;       /* 14px */
  --font-size-base: 1rem;         /* 16px */
  --font-size-lg: 1.125rem;       /* 18px */
  --font-size-xl: 1.25rem;        /* 20px */
  --font-size-2xl: 1.5rem;        /* 24px */
  --font-size-3xl: 2rem;          /* 32px */
  --font-size-4xl: 2.5rem;        /* 40px */
  --font-size-5xl: 3rem;          /* 48px */

  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.4;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.7;

  /* Letter Spacing */
  --letter-spacing-tight: -0.03em;
  --letter-spacing-snug: -0.025em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.025em;
  --letter-spacing-wider: 0.05em;

  /* ===== SPACING SCALE ===== */

  --spacing-1: 0.25rem;    /* 4px */
  --spacing-2: 0.5rem;     /* 8px */
  --spacing-3: 0.75rem;    /* 12px */
  --spacing-4: 1rem;       /* 16px */
  --spacing-5: 1.25rem;    /* 20px */
  --spacing-6: 1.5rem;     /* 24px */
  --spacing-7: 1.75rem;    /* 28px */
  --spacing-8: 2rem;       /* 32px */
  --spacing-10: 2.5rem;    /* 40px */
  --spacing-12: 3rem;      /* 48px */
  --spacing-16: 4rem;      /* 64px */
  --spacing-20: 5rem;      /* 80px */
  --spacing-24: 6rem;      /* 96px */

  /* ===== BORDER RADIUS ===== */

  --radius-sm: 0.375rem;   /* 6px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */
  --radius-xl: 1rem;       /* 16px */
  --radius-2xl: 1.5rem;    /* 24px */
  --radius-3xl: 2rem;      /* 32px */
  --radius-full: 9999px;   /* Full circle */

  /* ===== TRANSITIONS ===== */

  /* Timing Functions */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.6, 1);

  /* Duration */
  --duration-fast: 0.15s;
  --duration-normal: 0.3s;
  --duration-slow: 0.4s;

  /* Combined Transitions */
  --transition-all: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-transform: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-opacity: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-colors: background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  /* ===== LAYOUT ===== */

  --max-width: 1200px;
  --max-width-narrow: 800px;
  --max-width-wide: 1400px;
  --sidebar-width: 280px;
  --nav-height: 72px;

  /* ===== Z-INDEX SCALE ===== */

  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}