/* Design Tokens - 12scribe Landing Page - Premium Edition */

:root {
  /* ===== COLORS ===== */

  /* Primary Brand Colors - Refined palette */
  --color-primary: #5B5FFF;
  --color-primary-dark: #4845E4;
  --color-primary-light: #7B7FFF;
  --color-primary-lighter: #E0E1FF;
  --color-primary-subtle: #F5F5FF;

  /* Secondary/Accent - Vibrant purple */
  --color-accent: #7C3AED;
  --color-accent-dark: #6D28D9;
  --color-accent-light: #A78BFA;

  /* Success/Pro - Modern green */
  --color-success: #10B981;
  --color-success-dark: #059669;
  --color-success-light: #34D399;

  /* Neutrals - Improved contrast */
  --color-text-primary: #0A0A0B;
  --color-text-secondary: #52525B;
  --color-text-tertiary: #A1A1AA;
  --color-text-inverse: #FFFFFF;
  --color-text-muted: #71717A;

  /* Backgrounds - More subtle */
  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #FAFAFA;
  --color-bg-tertiary: #F4F4F5;
  --color-bg-elevated: #FFFFFF;
  --color-bg-dark: #18181B;
  --color-bg-darker: #09090B;

  /* Borders - Subtle and refined */
  --color-border: #E4E4E7;
  --color-border-light: #F4F4F5;
  --color-border-dark: #27272A;

  /* Premium Gradients */
  --gradient-primary: linear-gradient(135deg, #5B5FFF 0%, #7C3AED 100%);
  --gradient-hero: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(91, 95, 255, 0.15), transparent);
  --gradient-dark: linear-gradient(180deg, #18181B 0%, #09090B 100%);
  --gradient-card: linear-gradient(135deg, rgba(91, 95, 255, 0.03) 0%, rgba(124, 58, 237, 0.03) 100%);
  --gradient-card-hover: linear-gradient(135deg, rgba(91, 95, 255, 0.08) 0%, rgba(124, 58, 237, 0.08) 100%);
  --gradient-mesh:
    radial-gradient(at 0% 0%, rgba(91, 95, 255, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(124, 58, 237, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(91, 95, 255, 0.08) 0px, transparent 50%),
    radial-gradient(at 0% 100%, rgba(124, 58, 237, 0.08) 0px, transparent 50%);

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

  /* Font Families */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Droid Sans Mono', 'Source Code Pro', monospace;

  /* Font Sizes */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */
  --text-7xl: 4.5rem;      /* 72px */

  /* Font Weights - Refined hierarchy */
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  --font-black: 900;

  /* Line Heights - Improved readability */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 1.75;

  /* Letter Spacing */
  --tracking-tighter: -0.05em;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;

  /* ===== SPACING ===== */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  --space-20: 5rem;     /* 80px */
  --space-24: 6rem;     /* 96px */
  --space-32: 8rem;     /* 128px */

  /* ===== SIZING ===== */
  --max-width-sm: 640px;
  --max-width-md: 768px;
  --max-width-lg: 1024px;
  --max-width-xl: 1280px;
  --max-width-2xl: 1536px;

  --container-padding: var(--space-6);
  --section-padding-y: var(--space-20);

  /* ===== BORDERS & 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-full: 9999px;

  --border-width: 1px;
  --border-width-thick: 2px;

  /* ===== SHADOWS - Premium depth ===== */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.06), 0 1px 2px 0 rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.03);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.04);

  /* Premium card shadows */
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-card-hover: 0 12px 24px -4px rgba(0, 0, 0, 0.08), 0 8px 16px -4px rgba(0, 0, 0, 0.04);

  /* Colored shadows for CTA */
  --shadow-primary: 0 8px 16px -4px rgba(91, 95, 255, 0.25), 0 4px 8px -2px rgba(91, 95, 255, 0.15);
  --shadow-primary-hover: 0 16px 32px -8px rgba(91, 95, 255, 0.35), 0 8px 16px -4px rgba(91, 95, 255, 0.2);

  /* ===== TRANSITIONS - Smooth and polished ===== */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* ===== Z-INDEX ===== */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Dark mode support (optional for future) */
@media (prefers-color-scheme: dark) {
  :root {
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #cbd5e1;
    --color-text-tertiary: #64748b;

    --color-bg-primary: #0f172a;
    --color-bg-secondary: #1e293b;
    --color-bg-tertiary: #334155;

    --color-border: #334155;
    --color-border-light: #1e293b;
  }
}

/* Responsive breakpoints (for media queries) */
/*
  Mobile-first approach:

  @media (min-width: 640px)  { sm }
  @media (min-width: 768px)  { md }
  @media (min-width: 1024px) { lg }
  @media (min-width: 1280px) { xl }
  @media (min-width: 1536px) { 2xl }
*/