:root {
    --bg: #0b0d12;
    --bg-glow: #171a24;
    --panel: rgba(255, 255, 255, 0.05);
    --panel-strong: rgba(255, 255, 255, 0.08);
    --border: rgba(255, 255, 255, 0.1);
    --accent: #6366f1;
    --accent-2: #ec4899;
    --accent-glow: rgba(99, 102, 241, 0.45);
    --text: #eef0f4;
    --text-dim: #9aa0ac;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: radial-gradient(circle at 15% -10%, var(--bg-glow) 0%, var(--bg) 55%);
    color: var(--text);
    min-height: 100vh;
}

/* ---------- Header ---------- */
.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 5%;
    border-bottom: 1px solid var(--border);
    background: rgba(11, 13, 18, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    position: sticky;
    top: 0;
    z-index: 50;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand i {
    font-size: 1.8rem;
    color: var(--accent);
    background: var(--panel);
    border: 1px solid var(--border);
    width: 52px;
    height: 52px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.brand h1 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: -0.3px;
}

.brand p {
    margin: 2px 0 0;
    color: var(--text-dim);
    font-size: 0.82rem;
}

.home-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text);
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 10px 18px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.home-btn:hover {
    border-color: var(--accent);
    box-shadow: 0 0 18px var(--accent-glow);
    transform: translateY(-2px);
}

/* ---------- Nav pills ---------- */
.nav-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 18px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.nav-pill {
    text-decoration: none;
    color: var(--text-dim);
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.nav-pill i { font-size: 0.78rem; }

.nav-pill:hover {
    color: var(--text);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.nav-pill.active {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 20px var(--accent-glow);
}

/* ---------- Page title ---------- */
main {
    max-width: 1400px;
    margin: 0 auto;
    padding: 10px 5% 60px;
}

.page-title {
    text-align: center;
    margin: 30px 0 36px;
}

.page-title .tag {
    display: inline-block;
    color: var(--accent);
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 4px 14px;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.page-title h2 {
    margin: 0;
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

/* ---------- Image grid ---------- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}

.card {
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--panel);
    aspect-ratio: 4 / 3;
    cursor: pointer;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.card:hover {
    transform: translateY(-6px) scale(1.015);
    box-shadow: 0 16px 34px rgba(0, 0, 0, 0.5);
    border-color: var(--accent);
}

.card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ---------- Footer ---------- */
footer {
    text-align: center;
    padding: 40px 5% 60px;
    border-top: 1px solid var(--border);
}

footer a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
    text-decoration: none;
    background: var(--panel);
    border: 1px solid var(--border);
    padding: 10px 22px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 16px;
    transition: all 0.2s ease;
}

footer a:hover {
    border-color: var(--accent);
    box-shadow: 0 0 18px var(--accent-glow);
}

footer p {
    color: var(--text-dim);
    font-size: 0.8rem;
    margin: 0;
}

/* ---------- Lightbox ---------- */
#lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 999;
    align-items: center;
    justify-content: center;
}

#lightbox.open { display: flex; }

#lightbox img {
    max-width: 88vw;
    max-height: 84vh;
    border-radius: 12px;
    box-shadow: 0 0 70px var(--accent-glow);
}

.lb-close {
    position: absolute;
    top: 24px;
    right: 30px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--panel-strong);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    cursor: pointer;
    color: var(--text);
}

.lb-close:hover { color: var(--accent); }

.lb-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--panel-strong);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--text);
}

.lb-nav:hover {
    color: #fff;
    box-shadow: 0 0 18px var(--accent-glow);
}

.lb-prev { left: 20px; }
.lb-next { right: 20px; }

.lb-counter {
    position: absolute;
    bottom: 26px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--panel-strong);
    border: 1px solid var(--border);
    padding: 6px 16px;
    border-radius: 999px;
    font-size: 0.8rem;
    color: var(--text-dim);
}

@media (max-width: 640px) {
    .site-header { padding: 16px 5%; }
    .brand h1 { font-size: 1.1rem; }
    .page-title h2 { font-size: 1.5rem; }
    .lb-nav { width: 42px; height: 42px; font-size: 1.1rem; }
}