/* Light theme (default) */
:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --panel: #ffffff;
  --panel-2: #eef1f7;
  --border: #dde2ee;
  --text: #1a2233;
  --muted: #5b6478;
  --accent: #3b63d6;
  --accent-2: #2c4fb8;
  --radius: 10px;

  --success-bg: rgba(31,157,108,0.10);
  --success-border: #1f9d6c;
  --success-text: #157a54;
  --warn-bg: rgba(184,130,15,0.10);
  --warn-border: #b8820f;
  --warn-text: #8a6208;
  --danger-bg: rgba(212,58,82,0.10);
  --danger-border: #d43a52;
  --danger-text: #a82940;
  --accent-bg: rgba(59,99,214,0.10);
  --neutral-bg: rgba(91,100,120,0.08);
  --neutral-border: #dde2ee;
  --neutral-text: #5b6478;
  --violet: #6a4fc4;
  --violet-bg: rgba(106,79,196,0.10);

  --log-bg: #fbfbfd;
}

/* Dark theme — system preference (no explicit choice saved yet) ... */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0f1420;
    --panel: #161d2e;
    --panel-2: #1d2740;
    --border: #2a3450;
    --text: #e6e9f2;
    --muted: #93a0bd;
    --accent: #5b8cff;
    --accent-2: #3f6fe0;

    --success-bg: rgba(52,201,138,0.10);
    --success-border: #34c98a;
    --success-text: #9be8cb;
    --warn-bg: rgba(232,182,76,0.10);
    --warn-border: #e8b64c;
    --warn-text: #f3d38a;
    --danger-bg: rgba(239,90,111,0.10);
    --danger-border: #ef5a6f;
    --danger-text: #ffb3bd;
    --accent-bg: rgba(91,140,255,0.14);
    --neutral-bg: rgba(147,160,189,0.08);
    --neutral-border: #2a3450;
    --neutral-text: #93a0bd;
    --violet: #a48bf0;
    --violet-bg: rgba(164,139,240,0.14);

    --log-bg: #0a0e18;
  }
}

/* ... or the explicit toggle wins either direction */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1420;
  --panel: #161d2e;
  --panel-2: #1d2740;
  --border: #2a3450;
  --text: #e6e9f2;
  --muted: #93a0bd;
  --accent: #5b8cff;
  --accent-2: #3f6fe0;

  --success-bg: rgba(52,201,138,0.10);
  --success-border: #34c98a;
  --success-text: #9be8cb;
  --warn-bg: rgba(232,182,76,0.10);
  --warn-border: #e8b64c;
  --warn-text: #f3d38a;
  --danger-bg: rgba(239,90,111,0.10);
  --danger-border: #ef5a6f;
  --danger-text: #ffb3bd;
  --accent-bg: rgba(91,140,255,0.14);
  --neutral-bg: rgba(147,160,189,0.08);
  --neutral-border: #2a3450;
  --neutral-text: #93a0bd;
  --violet: #a48bf0;
  --violet-bg: rgba(164,139,240,0.14);

  --log-bg: #0a0e18;
}
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f7fb;
  --panel: #ffffff;
  --panel-2: #eef1f7;
  --border: #dde2ee;
  --text: #1a2233;
  --muted: #5b6478;
  --accent: #3b63d6;
  --accent-2: #2c4fb8;

  --success-bg: rgba(31,157,108,0.10);
  --success-border: #1f9d6c;
  --success-text: #157a54;
  --warn-bg: rgba(184,130,15,0.10);
  --warn-border: #b8820f;
  --warn-text: #8a6208;
  --danger-bg: rgba(212,58,82,0.10);
  --danger-border: #d43a52;
  --danger-text: #a82940;
  --accent-bg: rgba(59,99,214,0.10);
  --neutral-bg: rgba(91,100,120,0.08);
  --neutral-border: #dde2ee;
  --neutral-text: #5b6478;
  --violet: #6a4fc4;
  --violet-bg: rgba(106,79,196,0.10);

  --log-bg: #fbfbfd;
}

* { box-sizing: border-box; }

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

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

.container { max-width: 1080px; margin: 0 auto; padding: 32px 24px 80px; }

.topbar { background: var(--panel); border-bottom: 1px solid var(--border); }
.topbar-inner {
  max-width: 1080px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 24px;
}
.brand { font-weight: 700; color: var(--text); font-size: 16px; }
.topbar nav { display: flex; gap: 18px; flex: 1; }
.topbar nav a { color: var(--muted); font-weight: 500; }
.topbar nav a:hover { color: var(--text); text-decoration: none; }
.logout-form { display: flex; align-items: center; gap: 14px; }
.username { color: var(--muted); font-size: 13px; }
.link-btn {
  background: none; border: none; color: var(--muted); cursor: pointer;
  font-size: 13px; padding: 0; text-decoration: underline;
}

.theme-toggle {
  position: fixed; top: 16px; right: 20px; z-index: 50;
  width: 36px; height: 36px; border-radius: 999px;
  background: var(--panel); border: 1px solid var(--border); color: var(--text);
  font-size: 16px; cursor: pointer; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.theme-toggle:hover { border-color: var(--accent); }
.topbar .theme-toggle { position: static; box-shadow: none; }

h1 { font-size: 24px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 32px 0 12px; }
.muted { color: var(--muted); font-size: 13.5px; }

.center-card {
  max-width: 380px; margin: 60px auto; background: var(--panel);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 32px;
}
.center-card h1 { text-align: center; }
.center-card .muted { text-align: center; margin-bottom: 20px; }

.page-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; }

.stack { display: flex; flex-direction: column; gap: 14px; }
.stack.wide { max-width: 640px; }

label { display: flex; flex-direction: column; gap: 5px; font-size: 13.5px; color: var(--muted); font-weight: 500; }
.checkbox-label { flex-direction: row; align-items: center; gap: 8px; }
.checkbox-label input { width: auto; }

input[type=text], input[type=password], input[type=number], input[type=file] {
  background: var(--panel-2); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 9px 11px; font-size: 14px; font-family: inherit;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
legend { padding: 0 8px; color: var(--text); font-weight: 600; font-size: 13.5px; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .grid-2 { grid-template-columns: 1fr; } }

.btn {
  display: inline-block; background: var(--panel-2); border: 1px solid var(--border);
  color: var(--text); padding: 9px 16px; border-radius: 8px; font-size: 14px;
  font-weight: 500; cursor: pointer; text-decoration: none;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn.primary { background: var(--accent-2); border-color: var(--accent-2); color: white; }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); }
.btn.danger { background: transparent; border-color: var(--danger-border); color: var(--danger-border); }
.btn.danger:hover { background: var(--danger-bg); }
.btn.small { padding: 5px 10px; font-size: 12.5px; }

.alert { padding: 12px 14px; border-radius: 8px; font-size: 13.5px; margin-bottom: 16px; }
.alert.error { background: var(--danger-bg); border: 1px solid var(--danger-border); color: var(--danger-text); }
.alert.warn { background: var(--warn-bg); border: 1px solid var(--warn-border); color: var(--warn-text); }
.alert.success { background: var(--success-bg); border: 1px solid var(--success-border); color: var(--success-text); }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; color: var(--muted); font-weight: 600; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.03em; padding: 8px 10px; border-bottom: 1px solid var(--border); }
.table td { padding: 12px 10px; border-bottom: 1px solid var(--border); }
.row-link { cursor: pointer; }
.row-link:hover { background: var(--panel-2); }
.table-wrap { overflow-x: auto; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; text-transform: capitalize; white-space: nowrap; }
.status-queued { background: var(--neutral-bg); color: var(--neutral-text); }
.status-running { background: var(--accent-bg); color: var(--accent); }
.status-paused { background: var(--warn-bg); color: var(--warn-text); }
.status-completed { background: var(--success-bg); color: var(--success-text); }
.status-error { background: var(--danger-bg); color: var(--danger-text); }
.status-cancelled { background: var(--neutral-bg); color: var(--neutral-text); }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted); }
.empty-state .btn { margin-top: 14px; }

.progress-wrap { margin: 18px 0 8px; }
.progress-bar { height: 10px; background: var(--panel-2); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); transition: width 0.3s ease; }
.progress-wrap p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }

.stat-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin: 20px 0; }
@media (max-width: 800px) { .stat-grid { grid-template-columns: repeat(3, 1fr); } }
.stat-tile { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; text-align: center; }
.stat-value { font-size: 22px; font-weight: 700; }
.stat-label { font-size: 12px; color: var(--muted); margin-top: 2px; }
.stat-tile.valid .stat-value { color: var(--success-border); }
.stat-tile.invalid .stat-value { color: var(--danger-border); }
.stat-tile.catchall .stat-value { color: var(--violet); }
.stat-tile.unknown .stat-value { color: var(--warn-border); }

.actions { display: flex; gap: 10px; margin: 20px 0; flex-wrap: wrap; }
.downloads { display: flex; gap: 8px; flex-wrap: wrap; }

.live-log {
  margin-top: 10px; background: var(--log-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 14px; max-height: 360px; overflow-y: auto; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12.5px;
}
.log-line { padding: 3px 0; border-bottom: 1px solid var(--border); color: var(--muted); }
.log-line.status-valid { color: var(--success-border); }
.log-line.status-invalid { color: var(--danger-border); }
.log-line.status-catch_all { color: var(--violet); }
.log-line.status-unknown { color: var(--warn-border); }

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; margin-bottom: 20px; }
.panel h2 { margin-top: 0; }

.blocklist-banner {
  display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px;
  border-radius: 8px; font-size: 13.5px; margin-bottom: 16px; line-height: 1.5;
}
.blocklist-banner .bl-icon { font-weight: 700; flex-shrink: 0; }
.blocklist-banner a { text-decoration: underline; }
.blocklist-banner.clean { background: var(--success-bg); border: 1px solid var(--success-border); color: var(--success-text); }
.blocklist-banner.warn { background: var(--warn-bg); border: 1px solid var(--warn-border); color: var(--warn-text); }
.blocklist-banner.critical { background: var(--danger-bg); border: 1px solid var(--danger-border); color: var(--danger-text); }
.blocklist-banner.unknown { background: var(--neutral-bg); border: 1px solid var(--border); color: var(--muted); }

.blocklist-details { margin: -8px 0 16px; font-size: 13px; }
.blocklist-details summary { cursor: pointer; color: var(--muted); padding: 4px 0; }
.blocklist-details summary:hover { color: var(--text); }
.table.compact th, .table.compact td { padding: 7px 10px; font-size: 13px; }

.identity-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; padding: 10px 0; border-bottom: 1px solid var(--border); }
.identity-row:last-child { border-bottom: none; }
.identity-row .ident-main { flex: 1; min-width: 220px; }
.identity-row .ident-ip { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; }
.identity-row .ident-host { color: var(--muted); font-size: 12.5px; }

.qr-wrap { display: flex; justify-content: center; padding: 16px; background: #fff; border-radius: var(--radius); max-width: 260px; margin: 14px auto; }
.qr-wrap img { display: block; }
.secret-key {
  display: block; text-align: center; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 14px; letter-spacing: 1px; background: var(--log-bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 10px 14px; margin: 8px 0 16px; word-break: break-all;
}
.twofa-status { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; }
.twofa-status .badge.on { background: var(--success-bg); border: 1px solid var(--success-border); color: var(--success-text); }
.twofa-status .badge.off { background: var(--neutral-bg); border: 1px solid var(--border); color: var(--muted); }