/**
 * Turkotag Design System
 * Dubai-inspired premium dark mode with muted gold & emerald accents
 */

:root {
    /* Colors - Dark Mode Default */
    --bg-primary: #0a0e1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1a2234;
    --bg-elevated: #1e293b;

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --accent-gold: #d4a853;
    --accent-gold-light: #e5bc6a;
    --accent-gold-dark: #c9973d;
    --accent-gold-hover: #e5bc6a;
    --accent-gold-muted: rgba(212, 168, 83, 0.15);
    --accent-gold-soft: rgba(212, 168, 83, 0.15);
    --accent-gold-border: rgba(212, 168, 83, 0.3);

    --accent-emerald: #10b981;
    --accent-emerald-hover: #34d399;
    --accent-emerald-muted: rgba(16, 185, 129, 0.1);
    --accent-emerald-soft: rgba(16, 185, 129, 0.1);
    --accent-emerald-border: rgba(16, 185, 129, 0.2);

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-default: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.15);

    /* Card backgrounds */
    --bg-card: #111827;
    --bg-card-hover: #1a2234;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;

    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #0a0e1a 0%, #111827 50%, #0f172a 100%);
    --gradient-card: linear-gradient(145deg, rgba(30, 41, 59, 0.5) 0%, rgba(17, 24, 39, 0.8) 100%);
    --gradient-gold: linear-gradient(135deg, var(--accent-gold) 0%, #c9973d 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.4);
    --shadow-glow-gold: 0 0 20px rgba(212, 168, 83, 0.15);
    --shadow-glow-emerald: 0 0 20px rgba(16, 185, 129, 0.1);

    /* Typography */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    --leading-tight: 1.2;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;

    --tracking-tight: -0.02em;
    --tracking-normal: 0;
    --tracking-wide: 0.025em;

    /* Spacing (8pt scale) */
    --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 */

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;

    /* Transitions */
    --duration-fast: 150ms;
    --duration-normal: 250ms;
    --duration-slow: 400ms;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);

    /* Layout */
    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1400px;

    /* Z-index */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-fixed: 300;
    --z-modal-backdrop: 400;
    --z-modal: 500;
    --z-tooltip: 600;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--text-secondary);
    background-color: var(--bg-primary);
    min-height: 100vh;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--text-primary);
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
}

h1 {
    font-size: var(--text-5xl);
}

h2 {
    font-size: var(--text-4xl);
}

h3 {
    font-size: var(--text-3xl);
}

h4 {
    font-size: var(--text-2xl);
}

h5 {
    font-size: var(--text-xl);
}

h6 {
    font-size: var(--text-lg);
}

p {
    margin-bottom: var(--space-4);
}

a {
    color: var(--accent-gold);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
    color: var(--accent-gold-hover);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Utility Classes */
.container {
    width: 100%;
    max-width: var(--container-xl);
    margin-inline: auto;
    padding-inline: var(--space-6);
}

.container-narrow {
    max-width: var(--container-lg);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn var(--duration-slow) var(--ease-out) forwards;
    opacity: 0;
}

.fade-in-up {
    animation: fadeInUp var(--duration-slow) var(--ease-out) forwards;
    opacity: 0;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Stagger delays */
.delay-1 {
    animation-delay: 100ms;
}

.delay-2 {
    animation-delay: 200ms;
}

.delay-3 {
    animation-delay: 300ms;
}

.delay-4 {
    animation-delay: 400ms;
}

/* Focus styles */
:focus-visible {
    outline: 2px solid var(--accent-gold);
    outline-offset: 2px;
}

/* Selection */
::selection {
    background: var(--accent-gold-soft);
    color: var(--text-primary);
}