:root {
    --bg: #000000;
    --surface: #0C0C0C;
    --surface-raised: #131313;
    --border: rgba(255, 255, 255, 0.09);
    --border-hover: rgba(245, 158, 11, 0.4);

    --text-primary: #F5F5F5;
    --text-secondary: #A3A3A3;
    --text-muted: #666666;

    --accent: #F59E0B;
    --accent-soft: rgba(245, 158, 11, 0.12);
    --ok: #22C55E;
    --ok-soft: rgba(34, 197, 94, 0.12);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;

    --transition: 0.15s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Plus Jakarta Sans', -apple-system, sans-serif; }

body {
    background: var(--bg);
    color: var(--text-primary);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

a { color: inherit; }

.mono { font-family: 'JetBrains Mono', monospace; }

.wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.1rem;
}

/* ============ TOP NAV ============ */
.topnav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.topnav-inner {
    max-width: 720px;
    margin: 0 auto;
    padding: 0.85rem 1.1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    text-decoration: none;
    font-weight: 800;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    color: #FFFFFF;
}

.brand-badge {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--accent);
    color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.95rem;
}

.nav-links {
    display: flex;
    gap: 1.35rem;
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.nav-links a { text-decoration: none; transition: color var(--transition); }
.nav-links a:hover { color: var(--text-primary); }

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    width: 36px;
    height: 36px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

/* ============ AUTH BAR ============ */
.auth-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.7rem 0.9rem;
    margin: 1.1rem 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 0.8rem;
}

.auth-bar.warn { border-color: rgba(245, 158, 11, 0.3); background: var(--accent-soft); }

.auth-status { display: flex; align-items: center; gap: 0.5rem; color: var(--text-secondary); }

.verified-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--ok); box-shadow: 0 0 6px var(--ok);
    flex-shrink: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0.95rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: var(--surface-raised);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
}

.btn:hover { border-color: var(--border-hover); }
.btn:disabled { opacity: 0.5; cursor: default; }

.btn-accent {
    background: var(--accent);
    border-color: var(--accent);
    color: #000;
}

.btn-accent:hover { background: #FBBF24; border-color: #FBBF24; }

.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.72rem; }

/* ============ HERO ============ */
.hero {
    padding: 3rem 0 1.5rem;
}

.hero h1 {
    font-size: clamp(1.6rem, 5vw, 2.1rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.6rem;
}

.hero p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 52ch;
}

/* ============ SECTION SHELL ============ */
.section { padding: 2.5rem 0; border-top: 1px solid var(--border); }
.section:first-of-type { border-top: none; }

.section-head { margin-bottom: 1.5rem; }
.section-tag {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.35rem;
    display: block;
}
.section-head h2 { font-size: 1.35rem; font-weight: 800; letter-spacing: -0.01em; }
.section-desc { color: var(--text-muted); font-size: 0.85rem; margin-top: 0.35rem; }

/* ============ FEED / POSTS ============ */
.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.cat-pill {
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.cat-pill:hover { border-color: var(--border-hover); color: var(--text-primary); }

.cat-pill.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #000;
}

.cat-pill.sub {
    margin-left: 0.5rem;
    padding: 0.32rem 0.7rem;
    font-size: 0.72rem;
    border-style: dashed;
    color: var(--text-muted);
}

.cat-pill.sub.active {
    border-style: solid;
    color: #000;
}

.composer-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.post-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.1rem 1.2rem;
    margin-bottom: 0.9rem;
}

.post-head {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 0.6rem;
}

.post-kind-tag {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 999px;
    font-family: 'JetBrains Mono', monospace;
}

.post-kind-tag.chat { background: rgba(59, 130, 246, 0.14); color: #7DB4FF; }
.post-kind-tag.blog { background: var(--accent-soft); color: var(--accent); }

.post-time { font-size: 0.72rem; color: var(--text-muted); margin-left: auto; }

.post-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; }

.post-content {
    color: var(--text-secondary);
    font-size: 0.83rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.read-more-btn {
    display: block;
    margin-top: 0.5rem;
    background: none;
    border: none;
    padding: 0;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
}

.read-more-btn:hover { text-decoration: underline; }

.post-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.85rem;
    padding-top: 0.7rem;
    border-top: 1px solid var(--border);
}

.comment-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    transition: color var(--transition);
}
.comment-toggle:hover { color: var(--text-primary); }

.comments-box { display: none; margin-top: 0.85rem; }
.comments-box.open { display: block; }

.comment-item {
    padding: 0.6rem 0;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
}
.comment-item:first-child { border-top: none; }

.comment-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.2rem;
}

.comment-author { font-weight: 700; font-size: 0.8rem; color: var(--text-primary); }
.comment-time { font-size: 0.68rem; color: var(--text-muted); font-family: 'JetBrains Mono', monospace; }
.comment-text { color: var(--text-secondary); white-space: pre-wrap; word-break: break-word; }

.comment-compose {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.comment-input {
    flex: 1;
    background: var(--surface-raised);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.55rem 0.75rem;
    color: var(--text-primary);
    font-size: 0.85rem;
    resize: none;
    min-height: 38px;
}
.comment-input:focus { outline: none; border-color: var(--border-hover); }

.comment-locked {
    font-size: 0.78rem;
    color: var(--text-muted);
    background: var(--surface-raised);
    border: 1px dashed var(--border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.75rem;
    margin-top: 0.75rem;
}

.load-more-row { display: flex; justify-content: center; padding-top: 0.5rem; }

.empty-note {
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 1.5rem 0;
    text-align: center;
    border: 1px dashed var(--border);
    border-radius: var(--radius-md);
}

/* ============ SERVICES ============ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0.9rem;
}

.service-card {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.2rem;
    transition: border-color var(--transition);
}
.service-card:hover { border-color: var(--border-hover); }

.service-icon {
    width: 38px; height: 38px;
    flex-shrink: 0;
    border-radius: var(--radius-sm);
    background: var(--accent-soft);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.15rem;
}

.service-body { min-width: 0; }
.service-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.4rem; }
.service-card p { font-size: 0.82rem; color: var(--text-muted); }

/* ============ BOOKMARKS ============ */
.bookmarks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 0.65rem;
}

.bookmark-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.75rem 0.9rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: border-color var(--transition);
}
.bookmark-item:hover { border-color: var(--border-hover); }

.bookmark-icon { font-size: 1.1rem; flex-shrink: 0; }
.bookmark-name { font-size: 0.85rem; font-weight: 700; color: var(--text-primary); }
.bookmark-url { font-size: 0.7rem; color: var(--text-muted); font-family: 'JetBrains Mono', monospace; }

/* ============ CONTACT ============ */
.contact-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.social-icon-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--surface);
    border: 1px solid var(--border);
    text-decoration: none;
    transition: transform var(--transition), border-color var(--transition);
    overflow: hidden;
}

.social-icon-link:hover {
    transform: translateY(-2px);
    border-color: var(--border-hover);
}

.social-icon-link.disabled {
    opacity: 0.45;
    cursor: default;
    pointer-events: none;
}

.social-icon-link svg { display: block; }

.social-icon-fallback { font-size: 1.2rem; }

/* ============ FOOTER ============ */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 1.75rem 0 2.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.75rem;
}

.site-footer a { color: var(--text-secondary); text-decoration: none; }

/* ============ RESPONSIVE ============ */
@media (max-width: 640px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #000;
        border-bottom: 1px solid var(--border);
        padding: 1rem 1.1rem;
        gap: 0.9rem;
    }
    .hero { padding: 2.25rem 0 1rem; }
    .auth-bar { flex-direction: column; align-items: stretch; text-align: center; }
}