:root {
    --bg-color: #080808;
    --card-bg: #111111;
    --text-main: #f0f0f0;
    --text-muted: #888888;
    --accent: #d4c5a3; /* Sepia/Gold */
    --accent-dim: #5c5542;
    --border: #222222;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-heading);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.site-header {
    padding: 2rem 0;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(8, 8, 8, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.brand-logo {
    width: 40px;
    height: 40px;
    border: 1px solid var(--text-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.brand-role {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Global Passport */
.global-passport {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.passport-label {
    color: var(--text-muted);
    display: none; /* Hidden on small screens */
}

@media (min-width: 768px) {
    .passport-label { display: inline; }
}

.passport-list {
    display: flex;
    gap: 0.5rem;
    background: var(--card-bg);
    padding: 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--border);
}

.passport-list a {
    padding: 0.25rem 0.75rem;
    border-radius: 2px;
    color: var(--text-muted);
}

.passport-list a:hover {
    color: var(--text-main);
}

.passport-list a.active {
    background: var(--accent);
    color: var(--bg-color);
    font-weight: 500;
}

/* Hero */
.hero {
    padding: 8rem 0 6rem;
}

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

.mono-accent {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.1;
    font-weight: 600;
    margin-bottom: 2rem;
    letter-spacing: -0.03em;
}

.hero-title span {
    font-weight: 300;
    font-style: italic;
    color: var(--text-muted);
}

.hero-text {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
    max-width: 600px;
}

.hero-text strong {
    color: var(--text-main);
    font-weight: 500;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--text-main);
    color: var(--bg-color);
    font-weight: 600;
}

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

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

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

/* Sections */
.section {
    padding: 6rem 0;
    border-top: 1px solid var(--border);
}

.bg-offset {
    background: linear-gradient(to bottom, var(--bg-color), #0d0d0d);
}

.section-header {
    margin-bottom: 4rem;
}

.section-tag {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.8rem;
    display: block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}

/* Grid */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr 1fr;
    }
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 2.5rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-dim);
}

.card-kicker {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: block;
}

.card-title {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.card-subtitle {
    font-size: 1.1rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.card-text {
    color: var(--text-muted);
    margin-bottom: 2rem;
    flex-grow: 1;
}

.card-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-main);
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.25rem;
    display: inline-block;
    width: fit-content;
}

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

/* Minimal Cards (Writing) */
.card-minimal {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 2rem;
    border: 1px solid var(--border);
    background: var(--card-bg);
    transition: all 0.3s ease;
}

.card-minimal:hover {
    border-color: var(--accent);
    background: #151515;
}

.card-icon {
    font-family: var(--font-mono);
    font-size: 2rem;
    color: var(--accent);
}

.card-details h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.card-details p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.card-arrow {
    margin-left: auto;
    font-size: 1.5rem;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

.card-minimal:hover .card-arrow {
    transform: translate(3px, -3px);
    color: var(--text-main);
}

/* Footer */
.site-footer {
    padding: 4rem 0;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

@media (min-width: 768px) {
    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
        align-items: flex-end;
    }
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.footer-col p {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.footer-nav {
    display: flex;
    gap: 1.5rem;
}

.footer-nav a {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

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

.footer-copy {
    font-size: 0.8rem;
    color: #444;
    width: 100%;
    text-align: center;
    margin-top: 2rem;
}

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

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

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-actions {
        flex-direction: column;
    }
    .btn {
        width: 100%;
        text-align: center;
    }
}