/* =========================================
   Austin Smith — Portfolio Styles
   ========================================= */

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

:root {
    --color-bg: #0a0e17;
    --color-bg-alt: #0f1420;
    --color-surface: #151b2b;
    --color-surface-hover: #1c2438;
    --color-border: #1e2740;
    --color-text: #c8cdd8;
    --color-text-muted: #7a8299;
    --color-text-bright: #e8ecf4;
    --color-accent: #4a9eff;
    --color-accent-hover: #6bb3ff;
    --color-accent-glow: rgba(74, 158, 255, 0.15);
    --color-green: #34d399;
    --color-green-dim: rgba(52, 211, 153, 0.12);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --transition: 0.25s ease;
    --max-width: 1140px;
}

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

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition), background var(--transition);
}

.nav.scrolled {
    border-bottom-color: var(--color-border);
    background: rgba(10, 14, 23, 0.95);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-bright);
    letter-spacing: -0.5px;
}

.nav-logo:hover {
    color: var(--color-text-bright);
}

.accent {
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-text-bright);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--color-text-muted);
    border-radius: 1px;
    transition: all var(--transition);
}

/* --- Hero --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-accent);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--color-text-bright);
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text);
    max-width: 640px;
    line-height: 1.8;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-bright);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.hero-bg-accent {
    position: absolute;
    top: -20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(74, 158, 255, 0.3);
}

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

.btn-secondary:hover {
    background: var(--color-surface-hover);
    color: var(--color-text-bright);
    border-color: var(--color-text-muted);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.825rem;
}

/* --- Sections --- */
.section {
    padding: 100px 0;
}

.section-alt {
    background: var(--color-bg-alt);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-bright);
    margin-bottom: 48px;
    letter-spacing: -0.5px;
}

.section-title::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: var(--color-accent);
    margin-top: 12px;
    border-radius: 2px;
}

/* --- About --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: start;
}

.about-text p {
    margin-bottom: 20px;
}

.about-lead {
    font-size: 1.1rem;
    color: var(--color-text-bright);
    line-height: 1.8;
}

.about-text strong {
    color: var(--color-text-bright);
}

.about-values h3 {
    font-size: 1rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.value-card {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    transition: border-color var(--transition);
}

.value-card:hover {
    border-color: var(--color-accent);
}

.value-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.value-card h4 {
    color: var(--color-text-bright);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.value-card p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: 0;
}

/* --- Skills --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.skill-group {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: border-color var(--transition), transform var(--transition);
}

.skill-group:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.skill-group-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-bright);
    margin-bottom: 20px;
}

.skill-icon {
    font-size: 1.25rem;
}

.skill-list {
    list-style: none;
}

.skill-list li {
    font-size: 0.875rem;
    color: var(--color-text);
    padding: 6px 0;
    padding-left: 16px;
    position: relative;
}

.skill-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 700;
}

/* --- Projects --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.project-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    transition: border-color var(--transition), transform var(--transition);
}

.project-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.project-featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--color-surface) 0%, rgba(74, 158, 255, 0.04) 100%);
    border-color: rgba(74, 158, 255, 0.2);
}

.project-header {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.project-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-accent);
    background: var(--color-accent-glow);
    padding: 4px 10px;
    border-radius: 4px;
    letter-spacing: 0.3px;
}

.tag-live {
    color: var(--color-green);
    background: var(--color-green-dim);
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-bright);
    margin-bottom: 12px;
}

.project-desc {
    font-size: 0.9rem;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 20px;
    padding: 16px 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.project-stat {
    display: flex;
    flex-direction: column;
}

.project-stat-value {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-accent);
}

.project-stat-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.project-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.project-stack span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-muted);
    background: rgba(255, 255, 255, 0.04);
    padding: 4px 10px;
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

.project-links {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* --- Experience Timeline --- */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--color-border);
}

.timeline-item {
    position: relative;
    margin-bottom: 48px;
}

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

.timeline-marker {
    position: absolute;
    left: -36px;
    top: 8px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-bg-alt);
    border: 3px solid var(--color-accent);
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.timeline-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-bright);
    margin-bottom: 4px;
}

.timeline-org {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.timeline-details {
    list-style: none;
}

.timeline-details li {
    font-size: 0.875rem;
    color: var(--color-text);
    padding: 5px 0;
    padding-left: 16px;
    position: relative;
    line-height: 1.6;
}

.timeline-details li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--color-text-muted);
}

.timeline-details strong {
    color: var(--color-text-bright);
}


.alignment-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 32px;
}

.alignment-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px;
    transition: border-color var(--transition);
}

.alignment-card:hover {
    border-color: var(--color-accent);
}

.alignment-card h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-bright);
    margin-bottom: 8px;
}

.alignment-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 0;
}

/* --- Contact --- */
.contact-content {
    max-width: 640px;
}

.contact-lead {
    font-size: 1.1rem;
    color: var(--color-text-bright);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-text);
    font-size: 0.95rem;
    padding: 16px 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.contact-link:hover {
    border-color: var(--color-accent);
    color: var(--color-text-bright);
    transform: translateX(4px);
}

.contact-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* --- Footer --- */
.footer {
    padding: 32px 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.footer p {
    font-size: 0.825rem;
    color: var(--color-text-muted);
}

/* --- Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: 1fr;
    }

    .project-featured {
        grid-column: 1;
    }

    .alignment-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 23, 0.98);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding: 100px 24px 60px;
        min-height: auto;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-value {
        font-size: 1.2rem;
    }

    .section {
        padding: 64px 0;
    }

    .section-title {
        font-size: 1.5rem;
        margin-bottom: 32px;
    }

    .project-stats {
        flex-wrap: wrap;
        gap: 16px;
    }

    .timeline {
        padding-left: 32px;
    }
}