:root {
    --bg-color: #121212;
    --bg-darker: #0a0a0a;
    --card-bg: #1a1a1a;
    --text-main: #e0e0e0;
    --text-muted: #888888;
    --accent: #ce412b; /* Rust Orange */
    --accent-hover: #e0553f;
    --border: #333333;
    --editor-bg: #1e1e1e;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    
    /* Syntax Highlighting */
    --syntax-kwd: #c678dd; /* Purple/Pink */
    --syntax-prop: #e06c75; /* Red */
    --syntax-str: #98c379; /* Green */
    --syntax-comment: #5c6370; /* Grey */
}

* {
    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: all 0.2s ease;
}

ul {
    list-style: none;
}

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

/* Header */
.site-header {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(18, 18, 18, 0.95);
    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;
    background: var(--accent);
    color: #fff;
    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;
}

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

/* Global Passport */
.global-passport {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.passport-label {
    color: var(--text-muted);
    display: none;
}

@media (min-width: 900px) {
    .passport-label { display: inline; }
}

.passport-list {
    display: flex;
    gap: 0.25rem;
    background: var(--bg-darker);
    padding: 0.25rem;
    border-radius: 4px;
    border: 1px solid var(--border);
}

.passport-list a {
    padding: 0.4rem 0.8rem;
    border-radius: 2px;
    color: var(--text-muted);
    display: block;
}

.passport-list a:hover {
    color: var(--text-main);
    background: rgba(255,255,255,0.05);
}

.passport-list a.active {
    background: var(--accent);
    color: #fff;
    font-weight: 600;
}

/* Hero & Code Editor */
.hero {
    padding: 6rem 0 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.code-window {
    width: 100%;
    max-width: 800px;
    background: var(--editor-bg);
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    overflow: hidden;
    border: 1px solid var(--border);
    margin-bottom: 2rem;
}

.window-bar {
    background: #282c34;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    position: relative;
}

.window-controls {
    display: flex;
    gap: 8px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #ff5f56; }
.control.yellow { background: #ffbd2e; }
.control.green { background: #27c93f; }

.window-title {
    position: absolute;
    left: 0;
    right: 0;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    pointer-events: none;
}

.window-content {
    padding: 1.5rem;
    overflow-x: auto;
}

.window-content pre {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    line-height: 1.6;
    color: #abb2bf;
}

/* Syntax Highlighting */
.kwd { color: var(--syntax-kwd); }
.prop { color: var(--syntax-prop); }
.str { color: var(--syntax-str); }
.comment { color: var(--syntax-comment); font-style: italic; }

.cursor {
    display: inline-block;
    width: 8px;
    height: 15px;
    background: var(--accent);
    animation: blink 1s infinite;
    vertical-align: middle;
    margin-left: 2px;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
}

.icon-btn {
    color: var(--text-muted);
    transition: color 0.3s ease, transform 0.3s ease;
}

.icon-btn:hover {
    color: var(--accent);
    transform: translateY(-3px);
}

/* Sections */
.section {
    padding: 5rem 0;
    border-top: 1px solid var(--border);
}

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

.section-header {
    margin-bottom: 3rem;
}

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

.section-title {
    font-size: 2rem;
    font-weight: 600;
}

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

@media (min-width: 768px) {
    .grid-1-2 { grid-template-columns: 1.5fr 1fr; }
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 2rem;
    border-radius: 6px;
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
}

.highlight-card {
    border-left: 4px solid var(--accent);
}

.card-badge {
    display: inline-block;
    background: rgba(206, 65, 43, 0.15);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.card-subtitle {
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.card-text {
    color: #bbb;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.tech-tags {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.tech-tags span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    background: #252525;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
}

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

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

/* Log Cards (Writing) */
.log-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: 4px;
    display: block;
}

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

.log-source {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent);
    display: block;
    margin-bottom: 0.5rem;
}

.log-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

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

/* Footer */
.site-footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border);
    background: var(--bg-darker);
    text-align: center;
}

.mono-text {
    font-family: var(--font-mono);
    color: #27c93f; /* Terminal Green */
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* Animations */
.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.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);
}