/* ============================================
   SIDEQUEST DIGITAL - Design System
   Be Known. Stand Out.
   ============================================ */

/* --------------------------------------------
   CSS Custom Properties (Design Tokens)
   -------------------------------------------- */
:root {
    /* Colors - Dark Mode Primary */
    --color-bg-primary: #08080c;
    --color-bg-secondary: #0f0f15;
    --color-bg-tertiary: #16161f;
    --color-bg-elevated: #1c1c28;
    
    /* Accent Colors */
    --color-accent-primary: #6d28d9;
    --color-accent-secondary: #8b5cf6;
    --color-accent-tertiary: #a78bfa;
    --color-accent-glow: rgba(139, 92, 246, 0.4);
    
    /* Warm Accent (for CTAs and highlights) */
    --color-warm-primary: #f97316;
    --color-warm-secondary: #fb923c;
    --color-warm-glow: rgba(249, 115, 22, 0.3);
    
    /* Text Colors */
    --color-text-primary: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;
    --color-text-inverse: #09090b;
    
    /* Borders & Surfaces */
    --color-border-subtle: rgba(255, 255, 255, 0.06);
    --color-border-default: rgba(255, 255, 255, 0.1);
    --color-border-strong: rgba(255, 255, 255, 0.15);
    
    /* Gradients */
    --gradient-hero: linear-gradient(135deg, #6d28d9 0%, #4f46e5 50%, #0ea5e9 100%);
    --gradient-warm: linear-gradient(135deg, #f97316 0%, #ef4444 50%, #ec4899 100%);
    --gradient-subtle: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
    --gradient-glow: radial-gradient(ellipse at center, var(--color-accent-glow) 0%, transparent 70%);
    
    /* Typography Scale */
    --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-accent: 'Playfair Display', Georgia, serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Font Sizes - Fluid Typography */
    --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
    --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
    --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1rem + 0.6vw, 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(2rem, 1.5rem + 2.5vw, 3rem);
    --text-4xl: clamp(2.5rem, 1.75rem + 3.75vw, 4rem);
    --text-5xl: clamp(3rem, 2rem + 5vw, 5.5rem);
    --text-6xl: clamp(3.5rem, 2rem + 7.5vw, 7rem);
    
    /* Font Weights */
    --weight-light: 300;
    --weight-regular: 400;
    --weight-medium: 500;
    --weight-semibold: 600;
    --weight-bold: 700;
    --weight-black: 900;
    
    /* Spacing Scale */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    --space-6xl: 12rem;
    
    /* Layout */
    --container-max: 1400px;
    --container-narrow: 900px;
    --container-wide: 1600px;
    --gutter: clamp(1.5rem, 4vw, 4rem);
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px var(--color-accent-glow);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-slower: 800ms cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Z-Index Scale */
    --z-base: 0;
    --z-raised: 10;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 300;
    --z-modal: 400;
    --z-toast: 500;
}


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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--weight-regular);
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* Noise texture overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.025;
    pointer-events: none;
    z-index: 9999;
}

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

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

::selection {
    background: var(--color-accent-primary);
    color: var(--color-text-primary);
}


/* --------------------------------------------
   Typography
   -------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: var(--weight-bold);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.text-display {
    font-size: var(--text-6xl);
    font-weight: var(--weight-black);
    letter-spacing: -0.03em;
    line-height: 1;
}

.text-headline {
    font-size: var(--text-5xl);
    font-weight: var(--weight-bold);
    letter-spacing: -0.025em;
}

.text-title {
    font-size: var(--text-4xl);
    font-weight: var(--weight-bold);
}

.text-subtitle {
    font-size: var(--text-2xl);
    font-weight: var(--weight-medium);
}

.text-body-lg {
    font-size: var(--text-lg);
    line-height: 1.7;
}

.text-body {
    font-size: var(--text-base);
    line-height: 1.7;
}

.text-small {
    font-size: var(--text-sm);
}

.text-caption {
    font-size: var(--text-xs);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: var(--weight-medium);
}

.text-mono {
    font-family: var(--font-mono);
}

.text-accent {
    font-family: var(--font-accent);
    font-style: italic;
}

/* Text Colors */
.text-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-muted { color: var(--color-text-muted); }
.text-accent-color { color: var(--color-accent-secondary); }

/* Gradient Text */
.text-gradient {
    background: var(--gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-warm {
    background: var(--gradient-warm);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}


/* --------------------------------------------
   Layout Utilities
   -------------------------------------------- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

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

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

.section {
    padding-block: var(--space-5xl);
    position: relative;
}

.section-lg {
    padding-block: var(--space-6xl);
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.gap-2xl { gap: var(--space-2xl); }

/* Grid utilities */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }


/* --------------------------------------------
   Components - Buttons
   -------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-display);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    letter-spacing: 0.02em;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-hero);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px var(--color-accent-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-default);
}

.btn-secondary:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-border-strong);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
    padding: var(--space-sm) var(--space-md);
}

.btn-ghost:hover {
    color: var(--color-text-primary);
}

.btn-lg {
    padding: var(--space-lg) var(--space-2xl);
    font-size: var(--text-base);
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-full);
}


/* --------------------------------------------
   Components - Cards
   -------------------------------------------- */
.card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-slow);
}

.card:hover {
    border-color: var(--color-border-default);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-elevated {
    background: var(--color-bg-elevated);
}

.card-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-hero);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card-glow:hover::before {
    opacity: 1;
}


/* --------------------------------------------
   Components - Tags/Badges
   -------------------------------------------- */
.tag {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    letter-spacing: 0.03em;
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-full);
    color: var(--color-accent-tertiary);
}

.tag-warm {
    background: rgba(249, 115, 22, 0.15);
    border-color: rgba(249, 115, 22, 0.3);
    color: var(--color-warm-secondary);
}


/* --------------------------------------------
   Animations & Keyframes
   -------------------------------------------- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% { 
        opacity: 0.5; 
        transform: scale(1); 
    }
    50% { 
        opacity: 0.8; 
        transform: scale(1.05); 
    }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn var(--transition-slow) ease forwards;
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-slower) ease forwards;
}

.animate-fade-in-down {
    animation: fadeInDown var(--transition-slower) ease forwards;
}

.animate-scale-in {
    animation: scaleIn var(--transition-slow) ease forwards;
}

.animate-slide-in-left {
    animation: slideInLeft var(--transition-slower) ease forwards;
}

.animate-slide-in-right {
    animation: slideInRight var(--transition-slower) ease forwards;
}

/* Scroll-triggered animation base states */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity var(--transition-slower), transform var(--transition-slower);
}

.reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
}

/* Stagger delays for children */
.stagger-children > *:nth-child(1) { transition-delay: 0ms; }
.stagger-children > *:nth-child(2) { transition-delay: 100ms; }
.stagger-children > *:nth-child(3) { transition-delay: 200ms; }
.stagger-children > *:nth-child(4) { transition-delay: 300ms; }
.stagger-children > *:nth-child(5) { transition-delay: 400ms; }
.stagger-children > *:nth-child(6) { transition-delay: 500ms; }
.stagger-children > *:nth-child(7) { transition-delay: 600ms; }
.stagger-children > *:nth-child(8) { transition-delay: 700ms; }


/* --------------------------------------------
   Special Effects
   -------------------------------------------- */
/* Glow effect for backgrounds */
.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
    z-index: 0;
}

.glow-orb-primary {
    background: var(--color-accent-primary);
    opacity: 0.3;
}

.glow-orb-secondary {
    background: var(--color-accent-secondary);
    opacity: 0.2;
}

/* Gradient borders */
.border-gradient {
    position: relative;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
}

.border-gradient::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 1px;
    border-radius: inherit;
    background: var(--gradient-hero);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

/* Glassmorphism */
.glass {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--color-border-subtle);
}


/* --------------------------------------------
   Scrollbar Styling
   -------------------------------------------- */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    border: 2px solid var(--color-bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent-primary);
}


/* --------------------------------------------
   Responsive Breakpoints
   -------------------------------------------- */
@media (max-width: 1200px) {
    .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root {
        --gutter: 1.5rem;
    }
    
    .section {
        padding-block: var(--space-4xl);
    }
    
    .grid-cols-4,
    .grid-cols-3,
    .grid-cols-2 { 
        grid-template-columns: 1fr; 
    }
    
    .hide-mobile {
        display: none !important;
    }
}

@media (max-width: 480px) {
    :root {
        --gutter: 1rem;
    }
    
    .btn {
        width: 100%;
    }
}