:root {
    --bg: #f5f6f8;
    --surface: #fff;
    --text: #1d2330;
    --muted: #6b7385;
    --border: #e1e4ea;
    --primary: #2f5bea;
    --primary-hover: #2449c4;
    --danger: #c9302c;
    --success: #1f8a4c;
    --radius: 8px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

a { color: var(--primary); }

.topbar {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 0 24px;
    height: 56px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
.topbar .brand { font-weight: 700; color: var(--text); text-decoration: none; }
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a, .topbar .logout {
    padding: 6px 12px;
    border-radius: var(--radius);
    color: var(--muted);
    text-decoration: none;
}
.topbar nav a:hover, .topbar nav a.active { background: var(--bg); color: var(--text); }

.container { max-width: 1040px; margin: 0 auto; padding: 32px 24px; }

.page-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.page-header h1 { margin: 0; font-size: 24px; }

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 24px;
}
.card h2 { margin: 0 0 16px; font-size: 17px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 13px; color: var(--muted); font-weight: 600; }
tr:last-child td { border-bottom: 0; }
td.actions { text-align: right; white-space: nowrap; }
td.actions form { display: inline; }

.btn {
    display: inline-block;
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    font: inherit;
    text-decoration: none;
    cursor: pointer;
}
.btn:hover { background: var(--bg); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { color: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: .4; cursor: default; }

.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
.badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #b6bcc8; }
.badge.online { color: var(--success); }
.badge.online::before { background: var(--success); }

.code { font-family: ui-monospace, Menlo, monospace; font-size: 15px; }
.player-url { font-family: ui-monospace, Menlo, monospace; font-size: 22px; font-weight: 600; word-break: break-all; }
.muted { color: var(--muted); }
.empty { color: var(--muted); text-align: center; padding: 24px; }

.flash { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 16px; }
.flash-success { background: #e5f5ec; color: var(--success); }
.flash-error { background: #fbe9e8; color: var(--danger); }

/* Forms */
form > div, .form-row { margin-bottom: 16px; }
label { display: block; font-weight: 600; margin-bottom: 6px; }
input[type=text], input[type=password], input[type=number], select {
    width: 100%;
    max-width: 420px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font: inherit;
    background: var(--surface);
}
input:focus, select:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
.help-text, form .form-text { font-size: 13px; color: var(--muted); margin-top: 4px; }
form ul { list-style: none; padding: 0; margin: 4px 0 0; color: var(--danger); font-size: 13px; }

.inline-form { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.inline-form > div { margin: 0; }
.inline-form input[type=number] { width: 120px; }

.thumb { width: 96px; height: 54px; object-fit: cover; border-radius: 4px; background: #000; display: block; }

.login { max-width: 360px; margin: 10vh auto 0; }
.login h1 { font-size: 22px; margin: 0 0 20px; }
.login input { max-width: none; }

@media (max-width: 640px) {
    .topbar { gap: 12px; padding: 0 12px; }
    .topbar .brand { display: none; }
    .container { padding: 20px 12px; }
    .hide-sm { display: none; }
}