/* Modern Design System - "Expensive Studio" Look */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
    /* Colors */
    --bg-color: #0a0a0a;
    --surface-color: #121212;
    --surface-hover: #1a1a1a;
    --border-color: #333;
    --text-primary: #ededed;
    --text-secondary: #888;
    --accent-color: #fff; /* Minimalist white accent */
    --accent-glow: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Spacing */
    --container-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Animation */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.2s var(--ease-out-expo);
    --transition-medium: 0.4s var(--ease-out-expo);
    
    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

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

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 65ch;
}

.mono {
    font-family: var(--font-mono);
    font-size: 0.9em;
    letter-spacing: -0.01em;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-xl) 0;
}

.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

/* Components */

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-sm) 0;
    z-index: 100;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.logo {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.2rem;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.nav-link:hover {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-content {
    max-width: 800px;
}

.hero-tag {
    display: inline-block;
    padding: 4px 12px;
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    background: rgba(255,255,255,0.02);
}

/* Cards (Bento Grid Style) */
.card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    transition: transform var(--transition-medium), border-color var(--transition-fast), box-shadow var(--transition-medium);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--text-secondary);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.card-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    border-radius: 4px;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    flex-grow: 1;
}

.card-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255,255,255,0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.link-arrow {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.link-arrow::after {
    content: '→';
    transition: transform var(--transition-fast);
}

.card:hover .link-arrow::after {
    transform: translateX(4px);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all var(--transition-fast);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    cursor: pointer;
}

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

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

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

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

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    padding-left: 1rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 1rem;
    width: 1px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-left: 3rem;
    margin-bottom: 3rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: calc(1rem - 4px);
    top: 0.4rem;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--text-primary);
    border: 2px solid var(--bg-color);
    box-shadow: 0 0 0 1px var(--text-primary);
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.timeline-item:hover .timeline-marker {
    background: var(--bg-color);
    transform: scale(1.2);
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    display: inline-block;
    background: var(--surface-color);
    padding: 2px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.timeline-content {
    padding-bottom: 1rem;
}

.timeline-title {
    font-size: 1.3rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.timeline-company {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.footer-col h4 {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }
    
    .grid-2, .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .nav-links {
        display: none; /* For now, hide on mobile or add a hamburger menu later */
    }
    
    .hero {
        min-height: 70vh;
    }
    
    h1 {
        font-size: 2.5rem;
    }
}

/* Utilities */
.text-gradient {
    background: linear-gradient(to right, #fff, #888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeIn 0.6s var(--ease-out-expo) forwards;
}

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

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* Search Modal */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 10vh;
}

.search-modal.active {
    display: flex;
}

.search-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
}

.search-container {
    position: relative;
    width: 90%;
    max-width: 600px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    animation: searchSlideIn 0.3s var(--ease-out-expo);
}

@keyframes searchSlideIn {
    from { opacity: 0; transform: translateY(-20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.search-input-wrapper {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

#search-input {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1.1rem;
    outline: none;
}

.search-results {
    max-height: 400px;
    overflow-y: auto;
    padding: var(--spacing-xs);
}

.search-result-item {
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.search-result-item:hover, .search-result-item.selected {
    background: var(--surface-hover);
}

.search-result-title {
    color: var(--text-primary);
    font-weight: 500;
}

.search-result-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 4px;
}

.search-hint {
    position: fixed;
    bottom: 20px;
    right: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 4px;
    background: var(--surface-color);
    z-index: 50;
    pointer-events: none;
}