/* Admin UI — Podcast Studio */
:root {
    --bg: #0f1220;
    --bg-2: #171a2d;
    --panel: #1c2040;
    --panel-2: #252a52;
    --border: #2b3060;
    --text: #e9ecff;
    --muted: #8f94c2;
    --primary: #7c5cff;
    --primary-2: #9b86ff;
    --danger: #ff5c7a;
    --success: #3ad29f;
    --radius: 12px;
    --shadow: 0 10px 30px rgba(0,0,0,.35);
    --font: system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body.admin {
    font-family: var(--font);
    background: radial-gradient(1200px 600px at 20% -10%, #2a1d5e 0%, transparent 60%),
                radial-gradient(900px 500px at 110% 10%, #1d4a5e 0%, transparent 55%),
                var(--bg);
    color: var(--text);
    min-height: 100vh;
}

a { color: var(--primary-2); text-decoration: none; }
a:hover { text-decoration: underline; }

.admin-topbar {
    display: flex; align-items: center; gap: 24px;
    padding: 14px 24px;
    background: rgba(15,18,32,.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 20;
}
.admin-topbar .brand { font-weight: 700; font-size: 1.1rem; color: var(--text); }
.admin-nav { display: flex; gap: 18px; flex: 1; }
.admin-nav a { color: var(--muted); }
.admin-nav a:hover { color: var(--text); }
.admin-user { display: flex; align-items: center; gap: 10px; color: var(--muted); }
.admin-user form { margin: 0; }

.admin-body { max-width: 1200px; margin: 0 auto; padding: 28px 24px 80px; }
.admin-main { display: flex; flex-direction: column; gap: 24px; }

.breadcrumb { font-size: .9rem; color: var(--muted); }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.page-head h1 { margin: 0; font-size: 1.6rem; }

.section-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.section-head h2 { margin: 0; }

.card {
    background: linear-gradient(180deg, var(--panel) 0%, var(--bg-2) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
}
.card h1, .card h2 { margin: 0 0 14px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 860px) { .grid-2 { grid-template-columns: 1fr; } }

.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.row > * { flex: 1 1 180px; }

label { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; font-size: .92rem; color: var(--muted); }
label > span { font-weight: 500; color: var(--text); }

input[type=text], input[type=email], input[type=password], input[type=number],
input[type=file], input[type=color], select, textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 8px;
    font: inherit;
    transition: border-color .15s, box-shadow .15s;
}
textarea { resize: vertical; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: .85rem; }
input:focus, select:focus, textarea:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(124,92,255,.25);
}

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 10px 16px;
    border-radius: 10px;
    border: 1px solid transparent;
    background: var(--panel-2);
    color: var(--text);
    font: inherit; font-weight: 600;
    cursor: pointer;
    transition: transform .1s, background .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: linear-gradient(135deg, var(--primary) 0%, #5d7cff 100%); }
.btn-primary:hover { filter: brightness(1.1); }
.btn-ghost { background: transparent; border-color: var(--border); }
.btn-ghost:hover { background: var(--panel-2); }
.btn-danger { background: transparent; color: var(--danger); border-color: rgba(255,92,122,.4); }
.btn-danger:hover { background: rgba(255,92,122,.1); }

.alert { padding: 12px 16px; border-radius: 10px; margin: 0 0 16px; border: 1px solid; }
.alert-error   { background: rgba(255,92,122,.1); border-color: rgba(255,92,122,.4); color: #ffc4cf; }
.alert-success { background: rgba(58,210,159,.1); border-color: rgba(58,210,159,.4); color: #b5f1dc; }

.badge {
    display: inline-block; padding: 3px 10px; border-radius: 999px;
    background: rgba(124,92,255,.18); color: var(--primary-2);
    font-size: .78rem; font-weight: 600;
}
.muted { color: var(--muted); }

/* Playlists grid */
.playlist-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 18px; }
.playlist-card header { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.playlist-card h2 { font-size: 1.15rem; margin: 0 0 6px; }
.playlist-card h2 a { color: var(--text); }
.playlist-card-actions { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; align-items: center; }
.playlist-card-actions form { margin: 0; }

.empty-state { text-align: center; padding: 60px 20px; }

/* Tracks list */
.track-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.track-row {
    display: grid;
    grid-template-columns: 20px 56px 1fr auto;
    gap: 14px; align-items: center;
    padding: 10px 14px;
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    transition: border-color .15s, transform .15s;
}
.track-row.dragging { opacity: .5; }
.track-row.drag-over { border-color: var(--primary); }
.drag-handle { cursor: grab; color: var(--muted); user-select: none; }
.track-cover {
    width: 56px; height: 56px; border-radius: 8px; object-fit: cover;
    background: var(--panel-2);
}
.track-info strong { display: block; }
.track-info p { margin: 2px 0 0; font-size: .85rem; }
.track-actions { display: flex; gap: 8px; align-items: center; }
.track-actions form { margin: 0; }

/* Modals */
.modal {
    border: none; background: transparent; padding: 0; max-width: 560px; width: calc(100% - 32px);
    color: var(--text);
}
.modal::backdrop { background: rgba(8,10,20,.7); backdrop-filter: blur(4px); }
.modal .card { margin: 0; }
.modal-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 12px; }

/* Auth pages */
.admin-public { display: grid; place-items: center; min-height: 100vh; }
.auth-shell { width: 100%; padding: 24px; display: grid; place-items: center; }
.auth-card { width: 100%; max-width: 420px; }
.auth-alt { text-align: center; margin-top: 12px; color: var(--muted); }

@media (max-width: 640px) {
    .admin-topbar { padding: 12px 16px; gap: 12px; }
    .admin-body { padding: 16px; }
    .track-row { grid-template-columns: 20px 44px 1fr; }
    .track-row .track-cover { width: 44px; height: 44px; }
    .track-row .track-actions { grid-column: 1 / -1; justify-content: flex-end; }
}

/* Layout picker */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group .label-text { font-size: .9rem; font-weight: 500; color: var(--muted); }
.layout-picker {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}
.layout-card {
    position: relative;
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding: 14px 12px 12px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--panel);
    cursor: pointer;
    transition: border-color .15s, background .15s;
    text-align: center;
}
.layout-card input[type="radio"] {
    position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none;
}
.layout-card:hover { border-color: var(--primary-2); background: var(--panel-2); }
.layout-card.is-selected,
.layout-card:has(input:checked) {
    border-color: var(--primary);
    background: color-mix(in srgb, var(--primary) 12%, var(--panel));
}
.layout-icon { color: var(--primary-2); display: flex; }
.layout-label { font-size: .88rem; font-weight: 600; color: var(--text); }
.layout-desc { font-size: .78rem; color: var(--muted); line-height: 1.4; }

@media (max-width: 560px) {
    .layout-picker { grid-template-columns: 1fr; }
}