:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e7ecf3;
  --muted: #9aa8bc;
  --accent: #25d366;
  --accent-dim: #1da851;
  --danger: #f87171;
  --border: #2d3a4f;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

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

header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

header h1 {
  font-size: 1.15rem;
  margin: 0;
  font-weight: 600;
}

main {
  padding: 1rem 1.25rem 2rem;
  max-width: 720px;
  margin: 0 auto;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
}

.card h2 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
  color: var(--muted);
}

input,
textarea {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0c1018;
  color: var(--text);
  font-size: 1rem;
  margin-bottom: 0.75rem;
}

textarea {
  min-height: 100px;
  resize: vertical;
}

button,
.btn {
  display: inline-block;
  border: none;
  border-radius: 8px;
  padding: 0.65rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: #052e16;
  text-decoration: none;
}

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

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

.status-pill {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.status-pending {
  background: #334155;
  color: #e2e8f0;
}

.status-sent {
  background: #14532d;
  color: #bbf7d0;
}

.status-failed {
  background: #450a0a;
  color: #fecaca;
}

.status-cancelled {
  background: #1e293b;
  color: #94a3b8;
}

.msg-item {
  border-top: 1px solid var(--border);
  padding: 0.75rem 0;
}

.msg-item:first-child {
  border-top: none;
  padding-top: 0;
}

.msg-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  align-items: center;
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
}

.qr-wrap {
  text-align: center;
  padding: 0.5rem 0;
}

.qr-wrap img {
  max-width: min(280px, 100%);
  border-radius: 8px;
  background: #fff;
  padding: 8px;
}

.error {
  color: var(--danger);
  font-size: 0.9rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.login-page .card {
  width: 100%;
  max-width: 380px;
}

.format-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: -0.25rem 0 0.35rem;
}

.format-bar .fmt {
  padding: 0.45rem 0.65rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.format-hint {
  margin: 0 0 0.75rem;
  font-size: 0.75rem;
}