:root {
  --bg: #0b0e11;
  --bg-elevated: #12161c;
  --bg-input: #1e2329;
  --border: #2b3139;
  --text: #eaecef;
  --text-secondary: #848e9c;
  --accent: #f0b90b;
  --accent-hover: #f8d12f;
  --danger: #f6465d;
  --success: #0ecb81;
  --radius: 4px;
  --font-display: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --max-form: 420px;
  --header-h: 64px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body {
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(240, 185, 11, 0.08), transparent),
    linear-gradient(180deg, #0b0e11 0%, #0e1116 100%);
  background-attachment: fixed;
}

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

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

.site-header {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(11, 14, 17, 0.92);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), #c99400);
  display: inline-block;
}

.nav-links {
  display: flex;
  gap: 16px;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

.page {
  min-height: calc(100vh - var(--header-h));
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px 48px;
}

.card-auth {
  width: 100%;
  max-width: var(--max-form);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px 28px;
}

.card-auth h1 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.card-auth .subtitle {
  margin: 0 0 28px;
  color: var(--text-secondary);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-group input {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-input);
  color: var(--text);
  font-size: 16px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}

.form-group input:focus {
  border-color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 20px;
  border: none;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--accent);
  color: #1e2026;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--text-secondary);
}

.form-footer {
  margin-top: 20px;
  text-align: center;
  color: var(--text-secondary);
}

.alert {
  padding: 12px 14px;
  border-radius: var(--radius);
  margin-bottom: 18px;
  font-size: 13px;
}

.alert-error {
  background: rgba(246, 70, 93, 0.12);
  color: var(--danger);
  border: 1px solid rgba(246, 70, 93, 0.35);
}

.alert-success {
  background: rgba(14, 203, 129, 0.12);
  color: var(--success);
  border: 1px solid rgba(14, 203, 129, 0.35);
}

.hidden {
  display: none !important;
}

/* Account / home */
.account-shell {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

.account-shell h1 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.03em;
}

.account-shell .lead {
  color: var(--text-secondary);
  margin: 0 0 28px;
}

.panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 16px;
}

.panel h2 {
  margin: 0 0 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.kv {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px 16px;
}

.kv dt {
  color: var(--text-secondary);
}

.kv dd {
  margin: 0;
  word-break: break-all;
}

.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 2px;
  background: rgba(240, 185, 11, 0.15);
  color: var(--accent);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
}

.feature-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  padding: 6px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 13px;
}

.hero-home {
  text-align: center;
  max-width: 560px;
}

.hero-home h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 6vw, 48px);
  font-weight: 700;
  letter-spacing: -0.04em;
  margin: 0 0 12px;
}

.hero-home h1 span {
  color: var(--accent);
}

.hero-home p {
  color: var(--text-secondary);
  font-size: 16px;
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.auth-split {
  width: 100%;
  max-width: 880px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.auth-pane {
  padding: 32px 28px;
}

.auth-pane + .auth-pane {
  border-left: 1px solid var(--border);
  background: #10141a;
}

.auth-pane h1,
.auth-pane h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.wx-hint,
.muted {
  color: var(--text-secondary);
  font-size: 13px;
}

#wx_qr_box {
  min-height: 220px;
  display: flex;
  justify-content: center;
}

.wx-fallback,
.debug-box {
  display: block;
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-secondary);
}

.debug-box input {
  width: 100%;
  height: 40px;
  margin: 6px 0;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-input);
  color: var(--text);
}

.auth-tabs {
  display: flex;
  margin: 0 0 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.auth-tab {
  flex: 1;
  height: 40px;
  border: 0;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.auth-tab.active {
  background: rgba(240, 185, 11, 0.16);
  color: var(--accent);
}

.auth-pane-block {
  display: none;
}

.auth-pane-block.active {
  display: block;
}

.form-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.form-row input {
  flex: 1;
  width: auto;
  min-width: 0;
}

.btn-sm {
  height: 48px;
  padding: 0 14px;
  white-space: nowrap;
}

.steps {
  display: flex;
  gap: 8px;
  margin: 0 0 24px;
}

.step {
  flex: 1;
  text-align: center;
  padding: 8px 6px;
  border-radius: 999px;
  background: var(--bg-input);
  color: var(--text-secondary);
  font-size: 12px;
}

.step.active {
  background: rgba(240, 185, 11, 0.18);
  color: var(--accent);
  font-weight: 600;
}

.step-panel {
  display: none;
}

.step-panel.active {
  display: block;
}

.wx-user {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.wx-user img,
.avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--bg-input);
}

.avatar-edit {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.avatar-edit img.avatar,
.avatar-edit .avatar {
  width: 72px;
  height: 72px;
}

.avatar-edit .muted {
  margin: 6px 0 0;
}

.mp-qr {
  display: block;
  width: 220px;
  height: 220px;
  margin: 12px auto;
  background: #fff;
  border-radius: 8px;
}

.site-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
  max-width: 640px;
  width: 100%;
}

.site-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  text-align: left;
}

.site-card h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.site-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 13px;
}

.admin-shell,
.account-shell {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 16px 64px;
}

.table-wrap {
  overflow-x: auto;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

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

table.data th {
  color: var(--text-secondary);
  font-weight: 500;
}

.actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 30;
}

.modal {
  width: 100%;
  max-width: 560px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  max-height: 90vh;
  overflow: auto;
}

.modal h2 {
  margin: 0 0 16px;
}

textarea.input,
.form-group textarea {
  width: 100%;
  min-height: 88px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-input);
  color: var(--text);
  font-family: inherit;
}

.secret-box {
  background: var(--bg-input);
  border: 1px dashed var(--accent);
  padding: 12px;
  border-radius: 6px;
  word-break: break-all;
  margin-bottom: 16px;
}

.status-on {
  color: var(--success);
}

.status-off {
  color: var(--danger);
}

.page-wide {
  align-items: flex-start;
}

.account-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 800px) {
  .auth-split,
  .account-grid,
  .site-grid {
    grid-template-columns: 1fr;
  }

  .auth-pane + .auth-pane {
    border-left: none;
    border-top: 1px solid var(--border);
  }
}

@media (max-width: 600px) {
  .site-header {
    padding: 0 14px;
  }

  .brand {
    font-size: 17px;
  }

  .card-auth {
    padding: 24px 18px;
  }

  .kv {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .kv dt {
    margin-top: 8px;
  }
}