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

:root {
    --bg:       #111217;
    --surface:  #1c1e26;
    --border:   #2a2d3a;
    --accent:   #e94560;
    --accent2:  #c73652;
    --text:     #e2e2e8;
    --muted:    #7a7d8e;
    --success-bg: #0f2e1a; --success-fg: #6fcf97;
    --error-bg:   #2e0f0f; --error-fg:   #eb5757;
}

body { background: var(--bg); color: var(--text); font-family: 'Segoe UI', system-ui, sans-serif; min-height: 100vh; }

/* ── HEADER ─────────────────────────────────────── */
header {
    background: var(--surface);
    border-bottom: 2px solid var(--accent);
    padding: .9rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky; top: 0; z-index: 200;
    gap: 1rem;
}
header h1 a, header h1 { color: var(--accent); font-size: 1.6rem; letter-spacing: 2px; text-decoration: none; white-space: nowrap; }
nav { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
nav a { color: var(--text); text-decoration: none; padding: .35rem .85rem; border-radius: 6px; font-size: .9rem; transition: background .2s; }
nav a:hover { background: var(--border); }
.photo-count { color: var(--muted); font-size: .85rem; margin-right: .5rem; }

/* ── GALLERY GRID ────────────────────────────────── */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 6px;
    padding: 1rem;
}

.photo-card {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 6px;
    background: var(--surface);
    display: block;
    cursor: pointer;
    text-decoration: none;
}
.photo-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; display: block; }
.photo-card:hover img { transform: scale(1.07); }

.overlay {
    position: absolute; inset: 0;
    background: linear-gradient(transparent 40%, rgba(0,0,0,.82));
    display: flex; align-items: flex-end;
    padding: .9rem .75rem;
    opacity: 0; transition: opacity .3s;
}
.photo-card:hover .overlay { opacity: 1; }
.overlay p { color: #fff; font-size: .82rem; line-height: 1.4; }

/* ── EMPTY STATE ─────────────────────────────────── */
.empty-state { text-align: center; padding: 5rem 2rem; color: var(--muted); }
.empty-state .empty-icon { font-size: 4rem; margin-bottom: 1rem; }
.empty-state h2 { font-size: 1.7rem; margin-bottom: .5rem; color: var(--text); }
.empty-state p { margin-bottom: 1.5rem; }

/* ── PAGINATION ──────────────────────────────────── */
.pagination { display: flex; justify-content: center; gap: .4rem; padding: 2rem 1rem; flex-wrap: wrap; }
.pagination a, .pagination span {
    padding: .45rem .95rem; background: var(--surface); color: var(--text);
    text-decoration: none; border-radius: 6px; border: 1px solid var(--border); font-size: .9rem;
}
.pagination a:hover { background: var(--accent); border-color: var(--accent); }
.pagination .current { background: var(--accent); border-color: var(--accent); font-weight: 600; }

/* ── BUTTONS ─────────────────────────────────────── */
.btn {
    display: inline-block; padding: .55rem 1.3rem;
    background: var(--accent); color: #fff; border: none; border-radius: 6px;
    cursor: pointer; font-size: .95rem; text-decoration: none;
    transition: background .2s; white-space: nowrap;
}
.btn:hover { background: var(--accent2); }
.btn-secondary { background: var(--border); }
.btn-secondary:hover { background: #3a3d4e; }
.btn-danger { background: #7a1f1f; }
.btn-danger:hover { background: #a02020; }
.btn-sm { padding: .35rem .9rem; font-size: .82rem; }

/* ── ALERTS ──────────────────────────────────────── */
.alert { padding: .75rem 1rem; border-radius: 6px; font-size: .9rem; line-height: 1.5; }
.alert-success { background: var(--success-bg); color: var(--success-fg); }
.alert-error   { background: var(--error-bg);   color: var(--error-fg);   }
.alert a { color: inherit; }

/* ── FORMS ───────────────────────────────────────── */
.form-group { margin-bottom: 1.2rem; }
.form-group label { display: block; margin-bottom: .4rem; color: var(--muted); font-size: .88rem; }
.form-control {
    width: 100%; padding: .65rem .85rem;
    background: var(--bg); border: 1px solid var(--border); border-radius: 6px;
    color: var(--text); font-size: .95rem; font-family: inherit; resize: vertical;
    transition: border-color .2s;
}
.form-control:focus { outline: none; border-color: var(--accent); }
.form-actions { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; }

/* ── DROP ZONE ───────────────────────────────────── */
.drop-zone {
    border: 2px dashed var(--accent); border-radius: 10px;
    padding: 2.5rem; text-align: center; cursor: pointer;
    transition: background .2s, border-color .2s;
}
.drop-zone:hover, .drop-zone.drag-over { background: rgba(233,69,96,.08); }
.drop-zone .drop-icon { font-size: 2.5rem; margin-bottom: .6rem; }
.drop-zone p { color: var(--muted); margin-bottom: .3rem; }
.drop-zone small { color: #555; font-size: .8rem; }
.drop-zone input[type="file"] { display: none; }

/* ── PREVIEW GRID ────────────────────────────────── */
#preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 6px; margin-top: .9rem;
}
#preview-grid img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 4px; }

/* ── UPLOAD / LOGIN CONTAINERS ───────────────────── */
.upload-container, .login-container {
    max-width: 600px; margin: 2.5rem auto;
    padding: 2rem; background: var(--surface); border-radius: 10px;
}
.login-container { max-width: 380px; text-align: center; }
.login-container .lock-icon { font-size: 2.5rem; margin-bottom: .8rem; }
.upload-container h2, .login-container h2 { margin-bottom: 1.5rem; color: var(--accent); }
.login-container .form-group { margin-top: 1.2rem; text-align: left; }

/* ── SINGLE PHOTO VIEW ───────────────────────────── */
.photo-view { max-width: 960px; margin: 1.5rem auto; padding: .75rem 1rem 3rem; }

.photo-nav-bar {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 1rem;
}
.nav-arrow {
    color: var(--text); text-decoration: none; padding: .4rem .9rem;
    background: var(--surface); border-radius: 6px; font-size: .9rem;
    transition: background .2s;
}
.nav-arrow:hover { background: var(--accent); }
.nav-arrow.disabled { color: var(--muted); pointer-events: none; }
.nav-dots { color: var(--muted); text-decoration: none; font-size: 1.2rem; letter-spacing: 3px; }

.photo-main { text-align: center; background: var(--surface); border-radius: 10px; overflow: hidden; }
.photo-main img { max-width: 100%; max-height: 75vh; object-fit: contain; display: block; margin: 0 auto; }

.photo-meta { background: var(--surface); border-radius: 10px; padding: 1.5rem; margin-top: .75rem; }
.photo-meta .caption { font-size: 1.05rem; line-height: 1.7; margin-bottom: 1rem; white-space: pre-wrap; }
.photo-meta .date { color: var(--muted); font-size: .82rem; margin-top: .75rem; }
.caption-form textarea { margin-bottom: .75rem; }
.caption-form .form-actions { gap: .6rem; }

/* ── RESPONSIVE ──────────────────────────────────── */
@media (max-width: 500px) {
    .gallery { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
    header h1 { font-size: 1.2rem; }
}