/* ========================================
   ECE 5160 Fast Robots Portfolio
   Design System - Dark Glassmorphism
   ======================================== */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---- CSS Variables ---- */
:root {
    /* Colors */
    --bg-primary: #0f0f10;
    --bg-secondary: #1a1a1c;
    --bg-card: rgba(255, 255, 255, 0.03);
    --border-glass: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --accent-blue: #3b82f6;
    --accent-blue-hover: #2563eb;
    --accent-green: #10b981;
    --accent-green-glow: rgba(16, 185, 129, 0.4);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;

    /* Shadows */
    --shadow-glow: 0 0 40px rgba(59, 130, 246, 0.15);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

ul {
    list-style: none;
}

/* ---- Container ---- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ---- Glassmorphism Card ---- */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

/* ---- Header ---- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 15, 16, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    padding: var(--spacing-sm) 0;
}

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

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.nav-icon:hover {
    background: var(--bg-card);
}

.nav-icon svg {
    width: 20px;
    height: 20px;
    fill: var(--text-secondary);
    transition: fill var(--transition-fast);
}

.nav-icon:hover svg {
    fill: var(--text-primary);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.625rem 1.25rem;
    background: transparent;
    border: 1.5px solid var(--accent-blue);
    border-radius: var(--radius-full);
    color: var(--accent-blue);
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

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

/* ---- Hero Section ---- */
.hero {
    padding: var(--spacing-2xl) 0;
}

.hero .container {
    display: flex;
    flex-direction: column-reverse;
    align-items: center;
    gap: var(--spacing-xl);
}

.hero-content {
    text-align: center;
}

.hero-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
}

.hero-bio {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 600px;
}

.hero-bio strong {
    color: var(--accent-blue);
    font-weight: 600;
}

.hero-image-wrapper {
    position: relative;
}

.hero-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border-glass);
    box-shadow: 0 0 60px rgba(59, 130, 246, 0.2);
}

/* ---- Stats Section ---- */
.stats-section {
    padding: var(--spacing-lg) 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    max-width: 600px;
    margin: 0 auto;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1;
}

.stat-blue {
    color: #3b82f6;
}

.stat-orange {
    color: #f97316;
}

.stat-green {
    color: #10b981;
}

.stat-yellow {
    color: #eab308;
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* ---- Philosophy Section ---- */
.philosophy-section {
    padding: var(--spacing-xl) 0;
}

.philosophy-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    position: relative;
    overflow: hidden;
}

.philosophy-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-green));
}

.philosophy-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.philosophy-quote {
    font-size: 1rem;
    line-height: 1.9;
    color: var(--text-secondary);
    font-style: italic;
    margin: 0;
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--accent-blue);
}

.philosophy-quote strong {
    color: var(--accent-green);
    font-weight: 600;
}

/* ---- Status Dashboard ---- */
.status-section {
    padding: var(--spacing-2xl) 0;
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.status-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.status-card {
    position: relative;
}

.status-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.status-indicator {
    position: relative;
    width: 10px;
    height: 10px;
}

.status-dot {
    width: 10px;
    height: 10px;
    background: var(--accent-green);
    border-radius: 50%;
    position: absolute;
    top: 0;
    left: 0;
}

.status-pulse {
    width: 10px;
    height: 10px;
    background: var(--accent-green);
    border-radius: 50%;
    position: absolute;
    top: 0;
    left: 0;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(2);
        opacity: 0;
    }

    100% {
        transform: scale(1);
        opacity: 0;
    }
}

.status-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-green);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-role {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.status-context {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.status-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag {
    padding: 0.25rem 0.75rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent-blue);
}

/* ---- Gallery Section ---- */
.gallery-section {
    padding: var(--spacing-2xl) 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.gallery-item {
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-glass);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-item img {
    width: 100%;
    height: auto;
    max-height: 350px;
    object-fit: contain;
    transition: transform var(--transition-normal);
}

.gallery-item:hover img {
    transform: scale(1.03);
}

.gallery-caption {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--text-muted);
    font-style: italic;
}

/* ---- Lab Journal Section ---- */
.labs-section {
    padding: var(--spacing-2xl) 0;
}

.labs-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.lab-card {
    overflow: hidden;
}

.lab-card .glass-card {
    padding: 0;
    overflow: hidden;
}

.lab-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: var(--bg-secondary);
}

.lab-content {
    padding: var(--spacing-md);
}

.lab-meta {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.lab-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.lab-snippet {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.lab-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-blue);
    transition: gap var(--transition-fast);
}

.lab-link:hover {
    gap: var(--spacing-sm);
}

.lab-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

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

.footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.footer-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
}

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

.footer-links .nav-icon {
    width: 36px;
    height: 36px;
}

.footer-links .nav-icon svg {
    width: 18px;
    height: 18px;
}

/* ---- Lab Page Styles ---- */
.lab-page {
    padding: var(--spacing-2xl) 0;
}

.lab-header {
    margin-bottom: var(--spacing-xl);
}

.lab-page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.lab-page-meta {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.lab-body {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.lab-body h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.lab-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.lab-body p {
    margin-bottom: var(--spacing-md);
}

.lab-body code {
    background: var(--bg-secondary);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.875em;
}

.lab-body pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

.lab-body pre code {
    background: none;
    padding: 0;
}

.lab-body img {
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
    max-width: 600px;
    width: 100%;
    height: auto;
}

.lab-body video {
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
    max-width: 400px;
    width: 100%;
    height: auto;
}

.lab-body ul,
.lab-body ol {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.lab-body li {
    margin-bottom: var(--spacing-xs);
}

.lab-body ol {
    list-style: decimal;
}

.lab-body ul {
    list-style: disc;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    transition: color var(--transition-fast);
}

.back-link:hover {
    color: var(--accent-blue);
}

.back-link svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

/* ---- Responsive Design ---- */
@media (min-width: 640px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-image {
        width: 240px;
        height: 240px;
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 800px;
    }

    .status-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .labs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .hero .container {
        flex-direction: row;
        text-align: left;
    }

    .hero-content {
        text-align: left;
        flex: 1;
    }

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

    .hero-bio {
        font-size: 1.125rem;
    }

    .hero-image {
        width: 280px;
        height: 280px;
    }

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

@media (min-width: 1024px) {
    .labs-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .lab-page-title {
        font-size: 2.5rem;
    }
}

/* ---- Utility Classes ---- */
.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;
}