/* ============================================
   Jake Rose — Personal Site
   ============================================ */

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

/* --- Theme Variables --- */
:root {
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-serif: 'Source Serif 4', Georgia, serif;
    --max-width: 1100px;
    --nav-height: 64px;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg: #fafaf9;
    --bg-alt: #f0efed;
    --surface: #ffffff;
    --text: #1a1a1a;
    --text-secondary: #5a5a58;
    --accent: #d97706;
    --accent-hover: #b45309;
    --border: #e5e5e3;
    --nav-bg: rgba(250, 250, 249, 0.85);
    --card-shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --card-shadow-hover: 0 10px 30px rgba(0,0,0,0.08);
    --marquee-bg: #f5f4f2;
    --code-bg: #f0efed;
}

[data-theme="dark"] {
    --bg: #0f0f0f;
    --bg-alt: #171717;
    --surface: #1c1c1c;
    --text: #e8e8e6;
    --text-secondary: #9a9a97;
    --accent: #f59e0b;
    --accent-hover: #fbbf24;
    --border: #2a2a2a;
    --nav-bg: rgba(15, 15, 15, 0.85);
    --card-shadow: 0 1px 3px rgba(0,0,0,0.2), 0 1px 2px rgba(0,0,0,0.15);
    --card-shadow-hover: 0 10px 30px rgba(0,0,0,0.3);
    --marquee-bg: #141414;
    --code-bg: #1c1c1c;
}

/* --- Global --- */
html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    font-size: 16px;
    transition: background var(--transition), color var(--transition);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

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

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: background var(--transition), border-color var(--transition);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text);
    letter-spacing: -0.02em;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.01em;
    transition: color var(--transition);
}

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

.theme-toggle {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--text);
    transition: all var(--transition);
}

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

[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

/* --- Hero --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 60px 24px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 60px;
    align-items: center;
}

.hero-greeting {
    font-size: 1.1rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 8px;
}

.hero h1 {
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 20px;
}

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

.hero-tagline {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 480px;
    line-height: 1.7;
    margin-bottom: 28px;
}

.hero-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 36px;
}

.chip {
    font-size: 0.8rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 100px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all var(--transition);
}

.hero-cta {
    display: flex;
    gap: 14px;
}

.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 28px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(217, 119, 6, 0.3);
}

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

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.hero-image {
    width: 280px;
    height: 340px;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(20%);
    transition: filter var(--transition);
}

.hero-image:hover img {
    filter: grayscale(0%);
}

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

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

.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 48px;
    text-align: center;
}

/* --- About Grid --- */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.about-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    transition: all var(--transition);
    box-shadow: var(--card-shadow);
}

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

.about-icon {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.about-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.about-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* --- Timeline --- */
.timeline {
    position: relative;
    padding-left: 32px;
    max-width: 700px;
    margin: 0 auto 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-bottom: 40px;
}

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

.timeline-marker {
    position: absolute;
    left: -32px;
    top: 6px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg);
    border: 3px solid var(--accent);
    transition: background var(--transition), border-color var(--transition);
    z-index: 1;
}

.timeline-date {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.timeline-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 4px 0 2px;
    letter-spacing: -0.01em;
}

.timeline-company {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.timeline-content p:last-child {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* --- Education --- */
.education, .awards {
    max-width: 700px;
    margin: 0 auto 48px;
}

.awards {
    margin-bottom: 0;
}

.education h3, .awards h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.edu-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.edu-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px 20px;
    flex: 1;
    min-width: 200px;
    transition: all var(--transition);
    box-shadow: var(--card-shadow);
}

.edu-item strong {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.edu-item span {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* --- Awards --- */
.awards-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.award-item {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.award-item:last-child {
    border-bottom: none;
}

.award-name {
    font-size: 0.9rem;
    font-weight: 500;
}

.award-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-align: right;
}

/* --- Skills Marquee --- */
.marquee-section {
    padding: 32px 0;
    background: var(--marquee-bg);
    overflow: hidden;
    transition: background var(--transition);
}

.marquee {
    overflow: hidden;
    position: relative;
}

.marquee::before,
.marquee::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100px;
    z-index: 2;
    pointer-events: none;
}

.marquee::before {
    left: 0;
    background: linear-gradient(to right, var(--marquee-bg), transparent);
}

.marquee::after {
    right: 0;
    background: linear-gradient(to left, var(--marquee-bg), transparent);
}

.marquee-track {
    display: flex;
    gap: 24px;
    animation: scroll 30s linear infinite;
    width: max-content;
}

.marquee-track span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    padding: 8px 18px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 100px;
    transition: all var(--transition);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* --- Favorites --- */
.favorites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.fav-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 28px;
    box-shadow: var(--card-shadow);
    transition: all var(--transition);
}

.fav-card:hover {
    box-shadow: var(--card-shadow-hover);
}

.fav-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.book-list, .mentor-list {
    list-style: none;
}

.book-list li, .mentor-list li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 6px 0;
    border-bottom: 1px solid var(--border);
    line-height: 1.6;
}

.book-list li:last-child, .mentor-list li:last-child {
    border-bottom: none;
}

blockquote {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    padding-left: 16px;
    border-left: 3px solid var(--accent);
    margin-bottom: 16px;
}

blockquote:last-child {
    margin-bottom: 0;
}

blockquote cite {
    display: block;
    margin-top: 8px;
    font-size: 0.8rem;
    font-style: normal;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* --- Services --- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.service-item {
    padding: 28px 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--card-shadow);
    transition: all var(--transition);
}

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

.service-item h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.service-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- Contact --- */
.contact-container {
    text-align: center;
    max-width: 600px;
}

.contact-sub {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.contact-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

.contact-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 24px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    min-width: 100px;
    transition: all var(--transition);
    box-shadow: var(--card-shadow);
}

.contact-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-hover);
}

.contact-link span {
    font-size: 0.8rem;
    font-weight: 500;
}

/* --- Footer --- */
.footer {
    text-align: center;
    padding: 48px 24px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
}

/* --- Reveal Animations --- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Responsive --- */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
        padding: 40px 24px;
    }

    .hero-tagline {
        max-width: 100%;
    }

    .hero-chips {
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-image {
        width: 200px;
        height: 240px;
        margin: 0 auto;
        order: -1;
    }

    .nav-links a:not(:last-child) {
        display: none;
    }

    .nav-links {
        gap: 12px;
    }

    .section {
        padding: 64px 0;
    }

    .section-title {
        font-size: 1.6rem;
        margin-bottom: 32px;
    }

    .timeline {
        padding-left: 28px;
    }

    .award-item {
        flex-direction: column;
        gap: 4px;
    }

    .award-desc {
        text-align: left;
    }

    .edu-grid {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .contact-links {
        gap: 10px;
    }

    .contact-link {
        min-width: 80px;
        padding: 16px;
    }
}