:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c2430;
  --muted: #667085;
  --border: #e2e5ea;
  --primary: #1f4bd8;
  --primary-hover: #1b3fb8;
  --danger: #d3402c;
  --danger-hover: #b73523;
  --success-bg: #e9f8ee;
  --success-text: #146c2e;
  --error-bg: #fdecea;
  --error-text: #b3261e;
  --radius: 12px;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

h1, .brand, label, button.btn {
  letter-spacing: -0.01em;
}

a { color: inherit; }

/* ---------- Top nav ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar .brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.topbar nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.topbar nav a, .topbar nav button {
  font-size: 0.95rem;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
}

.topbar nav a.active {
  background: #eef1fb;
  color: var(--primary);
  font-weight: 600;
}

.topbar nav button.logout {
  border: 1px solid var(--border);
  color: var(--muted);
}

/* ---------- Centered auth page ---------- */
.centered-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--card);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: 0 4px 24px rgba(20, 25, 40, 0.06);
  border: 1px solid var(--border);
}

.auth-card h1 {
  margin: 0 0 4px;
  font-size: 1.4rem;
  font-weight: 700;
}

.auth-card p.subtitle {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 0.92rem;
}

/* ---------- Page container ---------- */
.page {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.page-wide { max-width: 1500px; }

.page h1 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.page p.lead {
  color: var(--muted);
  margin-top: 0;
  margin-bottom: 24px;
  font-size: 0.95rem;
}

/* ---------- Card / form ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

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

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

label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

label .req { color: var(--danger); }

label .optional {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.82rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
textarea {
  width: 100%;
  padding: 13px 14px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fbfbfc;
  color: var(--text);
  font-family: inherit;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
}

textarea { resize: vertical; min-height: 70px; }

.hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 5px;
}

button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 9px;
  border: none;
  cursor: pointer;
  background: var(--primary);
  color: #fff;
  width: 100%;
}

button.btn:hover { background: var(--primary-hover); }
button.btn:disabled { opacity: 0.6; cursor: default; }

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

button.btn.small {
  width: auto;
  padding: 9px 14px;
  font-size: 0.88rem;
}

button.btn.danger { background: var(--danger); }
button.btn.danger:hover { background: var(--danger-hover); }

.banner {
  padding: 12px 14px;
  border-radius: 9px;
  font-size: 0.92rem;
  margin-bottom: 18px;
  display: none;
}

.banner.show { display: block; }

.banner.error {
  background: var(--error-bg);
  color: var(--error-text);
}

.banner.success {
  background: var(--success-bg);
  color: var(--success-text);
}

/* ---------- View / table page ---------- */
.toolbar {
  display: flex;
  gap: 10px;
  margin-bottom: 18px;
  flex-wrap: wrap;
  align-items: center;
}

.toolbar input[type="text"] {
  flex: 1;
  min-width: 180px;
}

.count-pill {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 14px;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

thead th {
  text-align: left;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: #fafbfc;
}

tbody td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
  vertical-align: top;
}

tbody tr:last-child td { border-bottom: none; }

td.muted { color: var(--muted); }

.empty-state {
  text-align: center;
  padding: 50px 20px;
  color: var(--muted);
}

/* Card list for narrow screens */
.reg-cards { display: none; }

.reg-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}

.reg-card .name {
  font-weight: 700;
  font-size: 1.02rem;
  margin-bottom: 2px;
}

.reg-card .company {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 10px;
}

.reg-card .detail {
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.reg-card .detail .label {
  color: var(--muted);
  display: inline-block;
  min-width: 90px;
}

.reg-card .actions {
  margin-top: 10px;
}

@media (max-width: 720px) {
  form .row { grid-template-columns: 1fr; }
  .table-wrap { display: none; }
  .reg-cards { display: block; }
}