:root {
  --bg: #0d1017;
  --panel: #151a24;
  --panel-2: #1b2130;
  --border: #263044;
  --text: #e8edf4;
  --muted: #8b94a5;
  --accent: #f5a524;
  --accent-hover: #d98a0d;
  --accent-ink: #1a1203;
  --success: #3ecf8e;
  --danger: #f2706a;
  --radius: 8px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

.page { min-height: 100vh; }

.topbar {
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .5px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.logo::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}
.topbar-right { display: flex; align-items: center; gap: 10px; }

.container { max-width: 1080px; margin: 24px auto; padding: 0 20px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 820px) { .grid { grid-template-columns: 1fr; } }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); }
.panel { padding: 24px; }
.panel h1 { margin: 0 0 6px; font-size: 22px; }
.panel h2 { margin: 0 0 16px; font-size: 15px; font-weight: 600; }
.muted { color: var(--muted); font-size: 13px; }
.mono { font-family: var(--mono); }

.login-panel { max-width: 420px; margin: 60px auto 0; }

.auth-tabs { display: flex; gap: 8px; margin-bottom: 18px; }
.auth-tab {
  flex: 1;
  padding: 9px 0;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--muted);
  font-size: 15px;
  cursor: pointer;
  transition: border-color .15s, color .15s, background .15s;
}
.auth-tab.active {
  border-color: var(--accent);
  background: rgba(245,165,36,.15);
  color: var(--accent);
  font-weight: 600;
}

.phone-row { display: flex; gap: 8px; }
.phone-row .input { flex: 1; }
.phone-row .btn { white-space: nowrap; }

.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }

.input {
  width: 100%;
  padding: 11px 13px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 15px;
  color: var(--text);
}
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(245,165,36,.15); }

.chip-group { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: border-color .15s, background .15s, color .15s;
}
.chip svg { flex-shrink: 0; }
.service-cell { display: inline-flex; align-items: center; gap: 7px; }
.service-cell svg { flex-shrink: 0; }
.chip:hover { border-color: var(--accent); }
.chip.active {
  border-color: var(--accent);
  background: rgba(245,165,36,.15);
  color: var(--accent);
  font-weight: 600;
}

.btn {
  display: inline-block;
  padding: 11px 18px;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: var(--accent-ink);
  transition: background .15s, opacity .15s;
}
.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-block { width: 100%; }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--panel-2); }
.btn-success { background: var(--success); color: #06281a; }
.btn-success:hover { filter: brightness(1.08); }
.btn-danger { background: var(--danger); color: #2a0707; }
.btn-danger:hover { filter: brightness(1.08); }
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-row { display: flex; gap: 10px; margin-top: 16px; }

.pill {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--panel-2);
  color: var(--text);
  font-size: 13px;
  border: 1px solid var(--border);
}
.pill-green { background: rgba(62,207,142,.12); color: var(--success); border-color: rgba(62,207,142,.3); }

.msg { min-height: 20px; margin-top: 10px; font-size: 14px; }
.msg-error { color: var(--danger); }
.msg-success { color: var(--success); }

.activation-box { margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--border); }
.phone-display { display: flex; align-items: baseline; gap: 12px; }
.phone-display .label, .code-box .label { color: var(--muted); font-size: 13px; }
.phone { font-family: var(--mono); font-size: 26px; font-weight: 700; letter-spacing: 1px; color: var(--accent); }
.status-line { margin: 10px 0; font-size: 14px; color: var(--muted); }
.code-box {
  background: var(--panel-2);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin: 12px 0;
}
.code-box .code { font-family: var(--mono); font-size: 34px; font-weight: 800; letter-spacing: 6px; color: var(--success); }
.sms-text { margin-top: 4px; word-break: break-all; }

.hidden { display: none !important; }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; }
.table th { color: var(--muted); font-weight: 600; font-size: 12px; letter-spacing: .5px; }
.table tr:last-child td { border-bottom: none; }
.table td.mono { font-size: 13px; letter-spacing: .5px; }

.stats-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 16px; margin-bottom: 20px; }
.stat { padding: 18px 22px; }
.stat-num { font-family: var(--mono); font-size: 30px; font-weight: 800; color: var(--accent); }
.stat-label { color: var(--muted); font-size: 13px; }

.gen-result { margin-top: 14px; }
.key-item {
  font-family: var(--mono);
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 6px;
  cursor: pointer;
  background: var(--panel-2);
  letter-spacing: 1px;
}
.key-item:hover { border-color: var(--accent); }
.key-item.copied { background: rgba(62,207,142,.12); border-color: var(--success); }

.badge { padding: 2px 10px; border-radius: 999px; font-size: 12px; }
.badge-green { background: rgba(62,207,142,.12); color: var(--success); }
.badge-gray { background: var(--panel-2); color: var(--muted); }

.help-panel { margin-top: 20px; }
.help-panel summary {
  cursor: pointer;
  padding: 15px 20px;
  font-weight: 600;
  font-size: 15px;
  list-style: none;
  user-select: none;
}
.help-panel summary::-webkit-details-marker { display: none; }
.help-panel summary::after { content: "▾"; float: right; color: var(--muted); }
.help-panel[open] summary::after { content: "▴"; }
.help-body { padding: 4px 20px 20px; border-top: 1px solid var(--border); }
.help-body h4 { margin: 16px 0 8px; font-size: 14px; }
.help-body p { margin: 8px 0; font-size: 14px; }
.help-body ul, .help-body ol { margin: 0 0 8px; padding-left: 20px; }
.help-body li { margin-bottom: 6px; font-size: 14px; }
.help-body b { color: var(--text); }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.65);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}
.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 560px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 15px; font-weight: 600; }
.modal-close {
  min-width: 44px;
  height: 32px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
}
.modal-close:disabled { cursor: not-allowed; opacity: .6; }
.modal-body { padding: 16px 18px 20px; overflow-y: auto; }
.modal-body h4 { margin: 14px 0 6px; font-size: 14px; }
.modal-body p { margin: 8px 0; font-size: 14px; }
.modal-body ul, .modal-body ol { margin: 0 0 8px; padding-left: 20px; }
.modal-body li { margin-bottom: 6px; font-size: 14px; }
.modal-body b { color: var(--text); }

@media (max-width: 820px) {
  .phone { font-size: 20px; }
  .code-box .code { font-size: 24px; }
}