:root {
  --bg: #0f1420;
  --card: #171e2e;
  --border: #2a3348;
  --text: #e6e9f0;
  --muted: #8b93a7;
  --accent: #4f8cff;
  --danger: #e6544a;
  --ok: #3ecf8e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 28px;
  border-bottom: 1px solid var(--border);
}

header h1 { font-size: 20px; margin: 0; }

.header-actions { display: flex; align-items: center; gap: 10px; }

.breadcrumb { margin: 0 0 -4px; }
.breadcrumb a { color: var(--muted); font-size: 13px; text-decoration: none; }
.breadcrumb a:hover { color: var(--text); }

.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-top: 8px;
}

.menu-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  text-decoration: none;
  color: var(--text);
  transition: border-color .15s, transform .15s;
}

.menu-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.menu-icon { font-size: 30px; }
.menu-title { font-size: 16px; font-weight: 600; }
.menu-sub { font-size: 13px; color: var(--muted); }

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 28px 60px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
}

.card h2 { margin-top: 0; font-size: 16px; }

.hint { color: var(--muted); font-size: 13px; margin-bottom: 12px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }

th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}

th { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: uppercase; }

td.empty { text-align: center; color: var(--muted); padding: 24px; }

.phone-input {
  width: 140px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 6px 8px;
  font-size: 13px;
  transition: background .3s, border-color .2s;
}
.phone-input:focus { border-color: var(--accent); outline: none; }
.phone-input.saved-flash { background: rgba(62, 207, 142, 0.2); border-color: var(--answered); }

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

.btn {
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 13px;
  cursor: pointer;
  font-weight: 500;
  display: inline-block;
  text-decoration: none;
}

.btn.primary { background: var(--accent); color: white; }
.btn.secondary { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.small { padding: 6px 10px; font-size: 12px; margin-right: 6px; }
.btn.danger { background: rgba(230, 84, 74, 0.15); color: var(--danger); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.enroll-result {
  margin-top: 14px;
  padding: 12px 16px;
  background: rgba(79, 140, 255, 0.1);
  border: 1px solid var(--accent);
  border-radius: 8px;
  font-size: 14px;
}

.code { font-family: monospace; font-size: 18px; letter-spacing: 2px; color: var(--accent); }

#enroll-qr {
  display: block;
  margin-top: 14px;
  width: 200px;
  height: 200px;
  background: white;
  border-radius: 8px;
  padding: 8px;
}

.apk-download {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.apk-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.apk-qr img {
  width: 90px;
  height: 90px;
  background: white;
  border-radius: 6px;
  padding: 6px;
}

.apk-qr .hint {
  font-size: 11px;
  color: var(--muted);
}

.login-card {
  max-width: 360px;
  margin: 60px auto 0;
}

#login-form { display: flex; flex-direction: column; gap: 10px; }

#login-form input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 14px;
}

.login-error { margin-top: 10px; color: var(--danger); font-size: 13px; }

.actions { white-space: nowrap; }

.detail-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 12px;
}

.scroll-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 260px;
  overflow-y: auto;
  font-size: 13px;
}

.scroll-list li {
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.scroll-list li.empty { color: var(--muted); }

@media (max-width: 700px) {
  .detail-columns { grid-template-columns: 1fr; }
  table, thead, tbody, th, td, tr { display: block; }
  thead { display: none; }
  td { border: none; padding: 4px 0; }
  tr { padding: 10px 0; border-bottom: 1px solid var(--border); }
}