:root {
    color-scheme: light dark;
    --bg: #ffffff;
    --fg: #1a1d21;
    --muted: #6b7280;
    --accent: #2563eb;
    --accent-fg: #ffffff;
    --border: #e5e7eb;
    --header-bg: #f9fafb;
    --card-bg: #ffffff;
    --ok-bg: #dcfce7; --ok-fg: #166534;
    --err-bg: #fee2e2; --err-fg: #991b1b;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1115;
        --fg: #e6e8eb;
        --muted: #9aa3af;
        --accent: #60a5fa;
        --accent-fg: #0b1220;
        --border: #22262e;
        --header-bg: #151922;
        --card-bg: #161a22;
        --ok-bg: #0f2a1a; --ok-fg: #86efac;
        --err-bg: #2a1416; --err-fg: #fca5a5;
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--fg);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header / nav */
.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1.5rem;
    background: var(--header-bg);
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}
.brand { font-weight: 700; font-size: 1.15rem; color: var(--fg); text-decoration: none; }
.nav { display: flex; align-items: center; gap: 1rem; }
.nav a { color: var(--fg); text-decoration: none; font-size: 0.95rem; }
.nav a:hover { color: var(--accent); }
.nav-user { color: var(--muted); font-size: 0.95rem; }
.inline-form { display: inline; margin: 0; }
.linklike {
    background: none; border: none; padding: 0; margin: 0;
    color: var(--fg); font: inherit; cursor: pointer;
}
.linklike:hover { color: var(--accent); }

/* Layout */
.container { flex: 1; width: 100%; max-width: 960px; margin: 0 auto; padding: 2.5rem 1.5rem; }

/* Buttons */
.btn {
    display: inline-block; background: var(--accent); color: var(--accent-fg);
    padding: 0.6rem 1.1rem; border-radius: 8px; text-decoration: none;
    font-weight: 600; border: none; cursor: pointer; font-size: 1rem;
}
.btn:hover { filter: brightness(1.05); }
.btn-large { padding: 0.9rem 1.8rem; font-size: 1.1rem; }
.btn-small { padding: 0.35rem 0.75rem; font-size: 0.85rem; }
.btn-block { display: block; width: 100%; margin-top: 0.5rem; }
.btn-outline { background: transparent; color: var(--accent); border: 1px solid var(--accent); }

/* Hero */
.hero h1 { font-size: 2.4rem; margin: 0 0 0.5rem; }
.hero-center { text-align: center; padding: 2rem 0 3rem; }
.lead { font-size: 1.2rem; color: var(--muted); }
.muted { color: var(--muted); }
code { background: var(--header-bg); border: 1px solid var(--border); border-radius: 4px; padding: 0.1rem 0.35rem; font-size: 0.9em; }
a { color: var(--accent); }

/* Flash */
.flash-wrap { max-width: 960px; margin: 1rem auto 0; padding: 0 1.5rem; }
.flash { padding: 0.7rem 1rem; border-radius: 8px; margin-bottom: 0.5rem; font-size: 0.95rem; }
.flash-success { background: var(--ok-bg); color: var(--ok-fg); }
.flash-error { background: var(--err-bg); color: var(--err-fg); }

/* Forms */
.form-card, .upload-card {
    max-width: 420px; margin: 1rem auto; background: var(--card-bg);
    border: 1px solid var(--border); border-radius: 12px; padding: 1.75rem;
}
.upload-card { max-width: 560px; }
.form-card h1, .upload-card h1 { margin-top: 0; }
label { display: block; margin: 0.9rem 0 0.3rem; font-weight: 600; font-size: 0.9rem; }
input[type=text], input[type=email], input[type=password], select {
    width: 100%; padding: 0.6rem 0.7rem; border: 1px solid var(--border);
    border-radius: 8px; background: var(--bg); color: var(--fg); font-size: 1rem;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.field-error { color: var(--err-fg); font-size: 0.85rem; margin: 0.3rem 0 0; }
.form-alt { margin-top: 1rem; text-align: center; color: var(--muted); }

/* Dropzone */
.dropzone {
    display: block; border: 2px dashed var(--border); border-radius: 12px;
    padding: 2.5rem 1rem; text-align: center; cursor: pointer; transition: border-color .15s, background .15s;
}
.dropzone:hover, .dropzone.dragging { border-color: var(--accent); background: var(--header-bg); }
.dropzone-inner small { display: block; margin-top: 0.4rem; color: var(--muted); }
.selected-info { text-align: center; margin: 0.5rem 0 0; }

/* Gallery */
.gallery-section { margin-top: 2.5rem; }
.gallery-section h2 { font-size: 1.2rem; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 0.75rem; }
.tile { display: block; aspect-ratio: 1 / 1; border-radius: 10px; overflow: hidden; background: var(--header-bg); border: 1px solid var(--border); }
.tile img { width: 100%; height: 100%; object-fit: cover; display: block; }
.tile-card { display: flex; flex-direction: column; gap: 0.4rem; }

/* Image view */
.image-view { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 760px) { .image-view { grid-template-columns: 1.6fr 1fr; } }
.image-stage { background: var(--header-bg); border: 1px solid var(--border); border-radius: 12px; padding: 0.5rem; text-align: center; }
.image-stage img { max-width: 100%; height: auto; border-radius: 8px; }
.image-meta h1 { font-size: 1.15rem; word-break: break-word; }
.share { display: flex; flex-direction: column; gap: 0.6rem; margin: 1rem 0; }
.share-label { display: block; font-size: 0.8rem; color: var(--muted); margin-bottom: 0.15rem; }
.copy-field { width: 100%; font-family: ui-monospace, monospace; font-size: 0.85rem; cursor: pointer; }
.copy-field.copied { outline: 2px solid var(--ok-fg); }

/* Admin */
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.stat-tile { background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; text-align: center; }
.stat-value { display: block; font-size: 1.8rem; font-weight: 700; }
.stat-label { color: var(--muted); font-size: 0.9rem; }
.admin-links { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.table-scroll { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th, .admin-table td { text-align: left; padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
.admin-table th { color: var(--muted); font-weight: 600; }
.actions-cell { display: flex; gap: 0.75rem; align-items: center; }
.tag { font-size: 0.7rem; background: var(--accent); color: var(--accent-fg); border-radius: 4px; padding: 0 0.35rem; }
.badge { font-size: 0.75rem; padding: 0.1rem 0.5rem; border-radius: 999px; }
.badge-active { background: var(--ok-bg); color: var(--ok-fg); }
.badge-suspended { background: var(--err-bg); color: var(--err-fg); }
.badge-pending { background: var(--header-bg); color: var(--muted); }
.linklike.danger { color: var(--err-fg); }
.tile-meta { font-size: 0.75rem; }

/* Footer */
.site-footer { padding: 1.25rem 1.5rem; border-top: 1px solid var(--border); color: var(--muted); font-size: 0.9rem; text-align: center; }