/**
 * PostWizard Design Tokens
 *
 * Indigo monochrome color scheme with modern design tokens
 */

:root {
    /* ========================
       COLOR PALETTE
       ======================== */

    /* Primary - Indigo */
    --color-primary-50: #EEF2FF;
    --color-primary-100: #E0E7FF;
    --color-primary-200: #C7D2FE;
    --color-primary-300: #A5B4FC;
    --color-primary-400: #818CF8;
    --color-primary-500: #6366F1;
    --color-primary-600: #4F46E5;
    --color-primary-700: #4338CA;
    --color-primary-800: #3730A3;
    --color-primary-900: #312E81;

    /* Neutral - Slate */
    --color-neutral-50: #F8FAFC;
    --color-neutral-100: #F1F5F9;
    --color-neutral-200: #E2E8F0;
    --color-neutral-300: #CBD5E1;
    --color-neutral-400: #94A3B8;
    --color-neutral-500: #64748B;
    --color-neutral-600: #475569;
    --color-neutral-700: #334155;
    --color-neutral-800: #1E293B;
    --color-neutral-900: #0F172A;
    --color-neutral-950: #020617;

    /* Accent Colors */
    --color-violet-500: #8B5CF6;
    --color-purple-500: #A855F7;
    --color-pink-500: #EC4899;

    /* Semantic Colors */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;

    /* Surface Colors */
    --color-white: #FFFFFF;
    --color-background: var(--color-neutral-50);
    --color-surface: var(--color-white);
    --color-surface-elevated: var(--color-white);

    /* ========================
       GRADIENTS
       ======================== */
    --gradient-hero: linear-gradient(135deg, #6366F1 0%, #8B5CF6 50%, #A855F7 100%);
    --gradient-hero-subtle: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 50%, rgba(168, 85, 247, 0.1) 100%);
    --gradient-cta: linear-gradient(135deg, #4F46E5 0%, #6366F1 100%);
    --gradient-mesh: radial-gradient(at 27% 37%, hsla(215, 98%, 61%, 0.15) 0px, transparent 50%),
                     radial-gradient(at 97% 21%, hsla(256, 98%, 72%, 0.15) 0px, transparent 50%),
                     radial-gradient(at 52% 99%, hsla(280, 100%, 70%, 0.12) 0px, transparent 50%),
                     radial-gradient(at 10% 29%, hsla(215, 98%, 61%, 0.1) 0px, transparent 50%),
                     radial-gradient(at 97% 96%, hsla(256, 98%, 72%, 0.1) 0px, transparent 50%);

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

    /* Font Families */
    --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Font Sizes - Fluid */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 0.9375rem);
    --text-base: clamp(1rem, 0.925rem + 0.375vw, 1.0625rem);
    --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
    --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
    --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.25rem);
    --text-5xl: clamp(3rem, 2.25rem + 3.75vw, 4.5rem);

    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.15;
    --leading-snug: 1.3;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;

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

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

    /* ========================
       SPACING
       ======================== */
    --space-0: 0;
    --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 */

    /* Section Spacing */
    --section-padding: clamp(4rem, 8vw, 7rem);

    /* ========================
       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-3xl: 2rem;      /* 32px */
    --radius-full: 9999px;

    /* Border */
    --border-width: 1px;
    --border-color: var(--color-neutral-200);

    /* ========================
       SHADOWS
       ======================== */
    --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);

    /* Colored Shadows */
    --shadow-primary-sm: 0 4px 14px 0 rgba(99, 102, 241, 0.25);
    --shadow-primary-md: 0 8px 25px 0 rgba(99, 102, 241, 0.3);
    --shadow-primary-lg: 0 15px 40px 0 rgba(99, 102, 241, 0.35);

    /* ========================
       TRANSITIONS
       ======================== */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    --transition-slower: 500ms ease;

    /* Timing Functions */
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* ========================
       Z-INDEX
       ======================== */
    --z-negative: -1;
    --z-0: 0;
    --z-10: 10;
    --z-20: 20;
    --z-30: 30;
    --z-40: 40;
    --z-50: 50;
    --z-header: 100;
    --z-modal: 200;
    --z-tooltip: 300;

    /* ========================
       LAYOUT
       ======================== */
    --container-max: 1280px;
    --container-padding: clamp(1rem, 5vw, 2rem);
    --header-height: 4.5rem;

    /* ========================
       BREAKPOINTS (for reference)
       ======================== */
    /*
    --bp-sm: 640px;
    --bp-md: 768px;
    --bp-lg: 1024px;
    --bp-xl: 1280px;
    --bp-2xl: 1536px;
    */
}

/* Dark mode variables (future) */
@media (prefers-color-scheme: dark) {
    :root.dark-mode {
        --color-background: var(--color-neutral-950);
        --color-surface: var(--color-neutral-900);
        --color-surface-elevated: var(--color-neutral-800);
        --border-color: var(--color-neutral-700);
    }
}