:root {
  --bg: #f7f7f9;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --success: #16a34a;
  --warn: #d97706;
  --danger: #dc2626;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
}
#app, .loading { min-height: 100vh; }
.loading { display: flex; align-items: center; justify-content: center; color: var(--muted); }

.login-wrap {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 1rem;
}
.login-card { width: 100%; max-width: 380px; }
.brand { font-size: 1.5rem; font-weight: 700; margin: 0 0 0.25rem; }
h2 { font-size: 1.25rem; font-weight: 600; margin: 0 0 1rem; }
h3 { font-size: 1rem; font-weight: 600; margin: 0 0 0.75rem; }

.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.error { color: var(--danger); margin: 0.5rem 0 0; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

label { display: block; margin: 0.75rem 0; }
label > input, label > textarea, label > select {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font: inherit;
  background: white;
}
label > input:focus, label > textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: var(--accent); }

button {
  background: var(--accent);
  color: white;
  border: 0;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  margin: 0.5rem 0.5rem 0.5rem 0;
}
button:hover:not(:disabled) { background: var(--accent-hover); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button.link { background: transparent; color: var(--accent); padding: 0.25rem 0.5rem; }
button.link:hover { background: transparent; text-decoration: underline; }

.layout { min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  background: white;
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex; align-items: center; gap: 2rem;
}
.topbar .brand { margin: 0; font-size: 1.125rem; }
.topbar nav { display: flex; gap: 1rem; flex: 1; }
.topbar nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
}
.topbar nav a.active, .topbar nav a:hover { color: var(--text); background: var(--bg); }
.topbar .who { display: flex; align-items: center; gap: 0.75rem; }

main { padding: 1.5rem; max-width: 1200px; width: 100%; margin: 0 auto; flex: 1; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; }
.stat .num { font-size: 1.75rem; font-weight: 600; }
.stat .lbl { color: var(--muted); font-size: 0.85rem; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: 0.85rem; }

.row { display: flex; align-items: center; gap: 0.5rem; }
.row.between { justify-content: space-between; }

.status { padding: 0.125rem 0.5rem; border-radius: 4px; font-size: 0.8rem; font-weight: 500; }
.status-draft { background: #f1f5f9; color: #475569; }
.status-scheduled { background: #dbeafe; color: #1d4ed8; }
.status-sending { background: #fef3c7; color: #b45309; }
.status-sent { background: #dcfce7; color: #166534; }
.status-failed { background: #fee2e2; color: #991b1b; }
.status-cancelled { background: #f1f5f9; color: #64748b; }

.contact-pick { max-height: 240px; overflow: auto; border: 1px solid var(--border); border-radius: 6px; padding: 0.5rem; margin: 0.5rem 0; }
.check { display: flex; align-items: center; gap: 0.5rem; padding: 0.25rem; }
.check input { width: auto; margin: 0; }

code { background: var(--bg); padding: 0.125rem 0.375rem; border-radius: 4px; font-size: 0.85em; }