/* Custom Scrollbar - Premium Minimal */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
    transition: background 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&family=JetBrains+Mono:ital,wght@0,100..800;1,100..800&display=swap');

:root {
    --bg-color: #050505;
    --text-color: #f5f5f7;
    --text-muted: #86868b;
    --accent-color: #2563eb;
    --border-color: #1d1d1f;
    --surface-color: #121214;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --grid-gap: 24px;
    --container-max-width: 1200px;
    --section-padding: 80px 0;

    --transition-standard: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-theme: background-color 0.5s ease, color 0.5s ease, border-color 0.5s ease, box-shadow 0.5s ease;
}

[data-theme="light"] {
    --bg-color: #f5f5f7;
    --text-color: #050505;
    --text-muted: #6e6e73;
    --accent-color: #2563eb;
    --border-color: #d2d2d7;
    --surface-color: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    transition: var(--transition-theme);
}

h1,
h2,
h3,
h4 {
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-standard);
}

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* Typography Utility */
.mono {
    font-family: var(--font-mono);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}

.title-xl {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
}

.title-lg {
    font-size: clamp(2rem, 5vw, 3rem);
}

.title-md {
    font-size: 1.75rem;
}

.text-lg {
    font-size: 1.25rem;
    color: var(--text-muted);
}

/* Layout Components */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--bg-color);
    opacity: 0.98;
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 20px 0;
    transition: var(--transition-theme);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    position: relative;
    transition: color 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent-color);
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-links a:hover {
    color: var(--accent-color);
}

.nav-links a:hover::after {
    width: 100%;
}

section {
    padding: var(--section-padding);
    transition: var(--transition-theme);
}

/* Grid System */
.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--grid-gap);
}

.col-12 {
    grid-column: span 12;
}

.col-8 {
    grid-column: span 8;
}

.col-6 {
    grid-column: span 6;
}

.col-4 {
    grid-column: span 4;
}

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }

    .col-8,
    .col-6,
    .col-4 {
        grid-column: span 12;
    }

    .nav-links {
        display: none;
    }

    /* Mobile nav would go here */
}

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-color);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.btn:hover {
    transform: translateY(-2px);
    border-color: var(--accent-color);
    background: transparent;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: var(--text-color);
    color: var(--bg-color);
    border-color: var(--text-color);
}

.btn-primary:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--text-color);
}

/* Work Card */
.work-card {
    grid-column: span 6;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.5s ease, box-shadow 0.5s ease;
}

.work-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.work-img {
    aspect-ratio: 16/10;
    background: #1a1a1c;
    overflow: hidden;
}

.work-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.5s ease;
}

.work-card:hover .work-img img {
    transform: scale(1.05);
    opacity: 0.8;
}

.work-content {
    padding: 24px;
}

.work-meta {
    margin-bottom: 12px;
}

.work-title {
    margin-bottom: 8px;
}

.footer {
    padding: 60px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
    transition: var(--transition-theme);
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 16px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    transition: var(--transition-standard);
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 80px;
}

.theme-toggle:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}