:root {
    --bg: #0f1117;
    --surface: #1a1d27;
    --surface-2: #222634;
    --surface-3: #2a2f3f;
    --border: #2a2f3f;
    --text: #e6e8ee;
    --muted: #8b90a0;
    --accent: #2dd4bf;
    --accent-strong: #14b8a6;
    --accent-weak: rgba(45, 212, 191, .12);
    --danger: #f87171;
    --danger-weak: rgba(248, 113, 113, .12);
    --warn: #fbbf24;
    --warn-weak: rgba(251, 191, 36, .12);
    --success: #34d399;
    --radius: 12px;
    --radius-sm: 8px;
    --sidebar-w: 248px;
    --font: 'DM Sans', system-ui, -apple-system, Segoe UI, sans-serif;
    --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -.01em; }
code, .mono { font-family: var(--mono); font-size: .86em; }

/* Layout */
.app { display: flex; min-height: 100vh; }
.sidebar {
    width: var(--sidebar-w);
    flex: 0 0 var(--sidebar-w);
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 20px 14px;
    position: sticky;
    top: 0;
    height: 100vh;
}
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.brand { display: flex; align-items: center; gap: 10px; padding: 6px 8px 18px; }
.brand-mark {
    width: 36px; height: 36px; border-radius: 10px;
    display: grid; place-items: center;
    background: var(--accent-weak); color: var(--accent);
    border: 1px solid rgba(45, 212, 191, .25);
}
.brand-mark svg { width: 20px; height: 20px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 15px; }
.brand-text small { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }

.nav { display: flex; flex-direction: column; gap: 4px; margin-top: 8px; }
.nav-link {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; border-radius: var(--radius-sm);
    color: var(--muted); font-weight: 500;
    transition: background .15s, color .15s;
}
.nav-link svg { width: 18px; height: 18px; flex: 0 0 18px; }
.nav-link:hover { background: var(--surface-2); color: var(--text); }
.nav-link.is-active { background: var(--accent-weak); color: var(--accent); }
.nav-link.is-disabled { opacity: .45; cursor: not-allowed; }
.nav-link em { margin-left: auto; font-style: normal; font-size: 10px; border: 1px solid var(--border); padding: 1px 6px; border-radius: 99px; }
.sidebar-foot { margin-top: auto; color: var(--muted); font-size: 12px; padding: 12px; display: flex; align-items: center; gap: 8px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 0 3px rgba(52, 211, 153, .15); }

.topbar {
    display: flex; align-items: center; gap: 14px;
    padding: 18px 28px; border-bottom: 1px solid var(--border);
    position: sticky; top: 0; background: rgba(15, 17, 23, .85); backdrop-filter: blur(8px); z-index: 20;
}
.page-title { font-size: 19px; flex: 1; }
.content { padding: 24px 28px 60px; max-width: 1120px; width: 100%; }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 9px 14px; border-radius: var(--radius-sm);
    border: 1px solid transparent; background: var(--surface-2); color: var(--text);
    font: inherit; font-weight: 500; cursor: pointer; white-space: nowrap;
    transition: background .15s, border-color .15s, transform .05s;
}
.btn svg { width: 16px; height: 16px; }
.btn:hover { background: var(--surface-3); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #04211d; }
.btn-primary:hover { background: var(--accent-strong); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--muted); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { background: var(--danger-weak); color: var(--danger); border-color: rgba(248,113,113,.3); }
.btn-danger:hover { background: rgba(248,113,113,.2); }
.btn-sm { padding: 6px 10px; font-size: 13px; }
.icon-btn { background: transparent; border: 1px solid var(--border); color: var(--text); border-radius: var(--radius-sm); padding: 8px; cursor: pointer; }
.only-mobile { display: none; }

/* Alerts */
.alert {
    margin: 18px 28px 0; padding: 12px 16px; border-radius: var(--radius);
    border: 1px solid var(--border); background: var(--surface);
    display: flex; align-items: center; gap: 10px;
}
.alert-success { border-color: rgba(52,211,153,.35); background: rgba(52,211,153,.08); color: #9ef0cf; }
.alert-error { border-color: rgba(248,113,113,.35); background: var(--danger-weak); color: #ffc9c9; }
.alert-warn { border-color: rgba(251,191,36,.35); background: var(--warn-weak); color: #fde3a7; }
.alert-close { margin-left: auto; background: none; border: 0; color: inherit; font-size: 20px; cursor: pointer; line-height: 1; }
.alert-list { margin: 0; padding-left: 18px; }

/* Panels */
.panel {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 20px; margin-bottom: 20px;
}
.panel-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.panel-head h2 { font-size: 16px; }
.link { color: var(--accent); font-weight: 500; }
.link-strong { font-weight: 700; color: var(--text); }
.link-strong:hover { color: var(--accent); }
.muted { color: var(--muted); }
.nowrap { white-space: nowrap; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 20px; }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; display: flex; flex-direction: column; gap: 4px; }
.stat-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.stat-value { font-size: 26px; font-weight: 700; }
.stat-foot { color: var(--muted); font-size: 12px; }

/* Table */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; font-weight: 500; }
.table tbody tr:hover { background: var(--surface-2); }
.table td.right, .table th.right { text-align: right; }
.inline { display: inline; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.row-between p { margin: 4px 0 0; }

/* Pills */
.pill { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 12px; background: var(--surface-3); color: var(--muted); }
.pill-on, .pill-google { background: var(--accent-weak); color: var(--accent); }
.pill-human { background: rgba(251,191,36,.14); color: var(--warn); }

/* Forms */
.form .field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form .field > span { font-weight: 500; font-size: 13px; color: var(--text); }
.form .field > span b { color: var(--accent); }
.form .field small { color: var(--muted); font-size: 12px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
input[type=text], input[type=url], input[type=number], textarea {
    width: 100%; padding: 10px 12px; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--bg); color: var(--text);
    font: inherit; outline: none; transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-weak); }
textarea.editor { resize: vertical; min-height: 320px; line-height: 1.55; }
.checks { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.check { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; }
.check input { margin-top: 3px; accent-color: var(--accent); }
.check small { color: var(--muted); }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 8px; }
.danger-zone { border-color: rgba(248,113,113,.3); }

/* Tabs */
.tabs { display: flex; gap: 4px; margin-bottom: 18px; border-bottom: 1px solid var(--border); overflow-x: auto; }
.tab { padding: 10px 14px; color: var(--muted); font-weight: 500; border-bottom: 2px solid transparent; white-space: nowrap; }
.tab:hover { color: var(--text); }
.tab.is-active { color: var(--accent); border-bottom-color: var(--accent); }

/* Editor toolbar */
.editor-form { display: flex; flex-direction: column; gap: 12px; }
.editor-toolbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.editor-toolbar .spacer { flex: 1; }
.hidden-file { display: none; }
.copy-row { display: flex; gap: 8px; align-items: stretch; }
.copy-row .code-block { flex: 1; }
.code-block {
    display: block; background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 12px 14px; margin: 0;
    overflow-x: auto; white-space: pre-wrap; word-break: break-word; color: #c9d3e0;
}
.preview { border: 1px solid var(--border); border-radius: var(--radius-sm); overflow: hidden; }
.preview-head { display: flex; align-items: center; justify-content: space-between; padding: 8px 12px; background: var(--surface-2); font-size: 13px; color: var(--muted); }
.preview-frame { width: 100%; height: 360px; border: 0; background: #fff; }

/* Mini */
.mini { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px; display: flex; flex-direction: column; gap: 3px; }
.mini-label { color: var(--muted); font-size: 12px; }
.mini-value { font-weight: 700; }
.mini-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.break-all { word-break: break-all; }
.behavior { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.behavior li { display: flex; align-items: center; gap: 10px; }

/* Empty state */
.empty { text-align: center; padding: 46px 20px; display: flex; flex-direction: column; align-items: center; gap: 10px; color: var(--muted); }
.empty svg { width: 52px; height: 52px; color: var(--accent); opacity: .8; }
.empty h3 { color: var(--text); }
.empty p { max-width: 420px; margin: 0; }

/* Auth (login / install) */
.auth-body { display: grid; place-items: center; min-height: 100vh; }
.auth-wrap { width: 100%; max-width: 420px; padding: 24px; }
.auth-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; }
.auth-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 22px; }
.auth-title { font-size: 20px; margin-bottom: 4px; }
.auth-sub { color: var(--muted); margin: 0 0 18px; font-size: 14px; }
.btn-block { width: 100%; justify-content: center; }
.topbar-user { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 14px; }
.topbar-user svg { width: 16px; height: 16px; }

/* Responsive */
@media (max-width: 900px) {
    .stats { grid-template-columns: repeat(2, 1fr); }
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .mini-grid { grid-template-columns: 1fr; }
    .only-mobile { display: inline-flex; }
    .sidebar {
        position: fixed; inset: 0 auto 0 0; z-index: 40;
        transform: translateX(-100%); transition: transform .2s ease; height: 100vh;
    }
    body.sidebar-open .sidebar { transform: translateX(0); }
    body.sidebar-open::after { content: ''; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 30; }
    .topbar, .content, .alert { padding-left: 16px; padding-right: 16px; }
    .alert { margin-left: 16px; margin-right: 16px; }
    .topbar-user { display: none; }
}