:root {
  --bg: #0f1512;
  --bg-card: #161f1a;
  --border: #263329;
  --text: #eef4f0;
  --text-dim: #9fb0a6;
  --accent: #25d366;
  --accent-dim: #1a9e4b;
  --danger: #e5534b;
  --warn: #d9a441;
  --radius: 10px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

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

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px;
}

/* ---------- Landing ---------- */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 40px;
}

.brand-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 12px;
}

.hero p {
  color: var(--text-dim);
  max-width: 480px;
  line-height: 1.5;
  margin: 0 0 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius);
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: opacity 0.15s ease, transform 0.1s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: #06210f;
}

.btn-primary:hover {
  opacity: 0.9;
}

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

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

.footer-note {
  margin-top: 48px;
  color: var(--text-dim);
  font-size: 0.8rem;
}

/* ---------- Auth card ---------- */

.auth-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  width: 100%;
  max-width: 360px;
}

.card h1 {
  font-size: 1.3rem;
  margin: 0 0 6px;
}

.card .sub {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 0 0 24px;
}

label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 6px;
}

input[type='text'],
input[type='password'] {
  width: 100%;
  background: #0c120e;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text);
  font-size: 0.95rem;
  margin-bottom: 16px;
  outline: none;
}

input[type='text']:focus,
input[type='password']:focus {
  border-color: var(--accent-dim);
}

.error-box {
  background: rgba(229, 83, 75, 0.12);
  border: 1px solid rgba(229, 83, 75, 0.4);
  color: #ffb3ae;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.85rem;
  margin-bottom: 16px;
}

/* ---------- Dashboard ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
}

.panel-grid {
  display: grid;
  grid-template-columns: minmax(280px, 360px) 1fr;
  gap: 20px;
  padding: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

@media (max-width: 760px) {
  .panel-grid {
    grid-template-columns: 1fr;
  }
}

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

.panel-card h2 {
  font-size: 1rem;
  margin: 0 0 4px;
}

.panel-card .sub {
  color: var(--text-dim);
  font-size: 0.8rem;
  margin: 0 0 16px;
}

.hint {
  color: var(--text-dim);
  font-size: 0.75rem;
  margin: -10px 0 16px;
}

.pairing-result {
  display: none;
  margin-top: 16px;
  padding: 16px;
  background: #0c120e;
  border: 1px dashed var(--accent-dim);
  border-radius: 8px;
  text-align: center;
}

.pairing-result .code {
  font-size: 1.8rem;
  letter-spacing: 4px;
  font-weight: 700;
  color: var(--accent);
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  margin: 6px 0;
}

.pairing-result .steps {
  text-align: left;
  color: var(--text-dim);
  font-size: 0.8rem;
  line-height: 1.5;
  margin-top: 10px;
}

.session-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.session-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  background: #0c120e;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.session-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.session-id {
  font-weight: 600;
  font-size: 0.9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.session-meta {
  color: var(--text-dim);
  font-size: 0.75rem;
}

.badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 999px;
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-connected {
  background: rgba(37, 211, 102, 0.15);
  color: var(--accent);
}

.badge-pending {
  background: rgba(217, 164, 65, 0.15);
  color: var(--warn);
}

.badge-off {
  background: rgba(159, 176, 166, 0.15);
  color: var(--text-dim);
}

.badge-error {
  background: rgba(229, 83, 75, 0.15);
  color: var(--danger);
}

.summary-row {
  flex-wrap: wrap;
  gap: 10px 16px;
}

.summary-row input[type='text'] {
  margin-bottom: 0;
  width: 160px;
  min-width: 0;
}

.summary-row .session-meta.sent-today {
  color: var(--accent);
}

.empty-state {
  color: var(--text-dim);
  font-size: 0.85rem;
  text-align: center;
  padding: 24px 0;
}

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

.btn-sm {
  padding: 6px 12px;
  font-size: 0.78rem;
  border-radius: 6px;
}

.spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}