:root {
  --brand-primary: #4152CF;
  --brand-secondary: #002756;
  --brand-surface: #DFE7F2;
  --brand-bg: #F8FAFC;
  --brand-text: #002756;
  --brand-muted: #5a6478;
  --brand-error: #c1374b;
  --brand-radius: 10px;
  --brand-shadow: 0 1px 3px rgba(0, 39, 86, .08), 0 4px 12px rgba(0, 39, 86, .06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: "Suisse Int'l", Suisse, Arial, sans-serif;
  color: var(--brand-text);
  background: var(--brand-bg);
}

a { color: var(--brand-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 {
  color: var(--brand-secondary);
  font-weight: 600;
  letter-spacing: -0.01em;
}

code {
  background: var(--brand-surface);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: .92em;
}

/* ===== Topbar ===== */
.topbar {
  display: flex;
  align-items: center;
  padding: 0 24px;
  background: var(--brand-primary);
  height: 64px;
  box-shadow: 0 1px 2px rgba(0, 39, 86, .15);
}
.topbar .brand {
  display: flex;
  align-items: center;
  margin-right: 32px;
}
.topbar .logo {
  height: 32px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
}
.topbar .nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.topbar .nav-link {
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 6px;
  opacity: 0.9;
  transition: background .12s ease, opacity .12s ease;
}
.topbar .nav-link:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}
.topbar .nav-link-admin {
  margin-left: auto;
  padding-left: 18px;
  border-left: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 0 6px 6px 0;
}
.topbar .user-area {
  display: flex;
  align-items: center;
  gap: 14px;
}
.topbar .user-name {
  color: #fff;
  opacity: 0.85;
  font-size: 14px;
}
.topbar .logout-btn {
  padding: 7px 14px;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: background .12s ease;
}
.topbar .logout-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  text-decoration: none;
}

/* ===== Container & content ===== */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
}
.page-header h1 { margin: 0; }

.muted { color: var(--brand-muted); }
.muted-list {
  color: var(--brand-muted);
  padding-left: 20px;
  line-height: 1.7;
}
.empty {
  color: var(--brand-muted);
  font-style: italic;
}
.empty-state {
  padding: 32px;
  background: #fff;
  border: 1px dashed var(--brand-surface);
  border-radius: var(--brand-radius);
}
.empty-state p:first-child {
  margin-top: 0;
  font-size: 16px;
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-block;
  padding: 9px 16px;
  background: var(--brand-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary:hover {
  background: var(--brand-secondary);
  text-decoration: none;
}
.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.btn-secondary {
  display: inline-block;
  padding: 8px 14px;
  background: #fff;
  color: var(--brand-primary);
  border: 1px solid var(--brand-surface);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
}
.btn-secondary:hover {
  border-color: var(--brand-primary);
  text-decoration: none;
}
.btn-link {
  color: var(--brand-muted);
  font-size: 14px;
  text-decoration: none;
}
.btn-link:hover {
  color: var(--brand-primary);
}

/* ===== Dashboard cards ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 24px;
}
.card {
  display: block;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--brand-surface);
  border-radius: var(--brand-radius);
  box-shadow: var(--brand-shadow);
  transition: transform .12s ease, box-shadow .12s ease;
}
.card:hover {
  transform: translateY(-2px);
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(0, 39, 86, .12), 0 8px 24px rgba(0, 39, 86, .08);
}
.card h2 { margin: 0; color: var(--brand-secondary); }

/* ===== Login ===== */
.login-card {
  max-width: 380px;
  margin: 80px auto;
  padding: 32px;
  background: #fff;
  border: 1px solid var(--brand-surface);
  border-radius: var(--brand-radius);
  box-shadow: var(--brand-shadow);
}
.login-card .login-logo {
  display: block;
  height: 40px;
  width: auto;
  margin: 0 auto 16px;
}
.login-card h1 { text-align: center; margin: 0 0 24px; font-size: 24px; }
.login-card form { display: flex; flex-direction: column; gap: 12px; }
.login-card label {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  color: var(--brand-muted);
  gap: 4px;
}
.login-card input {
  padding: 10px 12px;
  border: 1px solid var(--brand-surface);
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
  color: var(--brand-text);
  background: #fff;
}
.login-card input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(65, 82, 207, .15);
}
.login-card button {
  margin-top: 8px;
  padding: 11px;
  background: var(--brand-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
}
.login-card button:hover { background: var(--brand-secondary); }
.login-card .error {
  padding: 10px 12px;
  background: #fde8eb;
  color: var(--brand-error);
  border-radius: 6px;
  font-size: 14px;
  margin-bottom: 4px;
}

/* ===== Data table (admin/users) ===== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--brand-surface);
  border-radius: var(--brand-radius);
  overflow: hidden;
  box-shadow: var(--brand-shadow);
}
.data-table th,
.data-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--brand-surface);
}
.data-table th {
  background: #f5f8fc;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.data-table tbody tr:hover {
  background: #fafbfd;
}
.data-table tbody tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--brand-surface);
  color: var(--brand-text);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}
.badge-admin {
  background: var(--brand-primary);
  color: #fff;
}

/* ===== Form card ===== */
.form-card {
  background: #fff;
  border: 1px solid var(--brand-surface);
  border-radius: var(--brand-radius);
  box-shadow: var(--brand-shadow);
  padding: 24px;
  max-width: 540px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-field > span,
.form-field > legend {
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-muted);
}
.form-field input[type="text"],
.form-field input[type="password"],
.form-field input:not([type]),
.form-field select {
  padding: 10px 12px;
  border: 1px solid var(--brand-surface);
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
  color: var(--brand-text);
  background: #fff;
}
.form-field input:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(65, 82, 207, .15);
}
fieldset.form-field {
  border: 1px solid var(--brand-surface);
  border-radius: 6px;
  padding: 12px 16px;
}
fieldset.form-field legend {
  padding: 0 6px;
}
.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
  cursor: pointer;
  color: var(--brand-text);
  font-weight: normal;
  font-size: 14px;
}
.checkbox input[type="checkbox"] {
  accent-color: var(--brand-primary);
  cursor: pointer;
}
.checkbox input[type="checkbox"]:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.hint { margin: 8px 0 0; font-size: 13px; }
.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.alert-error {
  padding: 12px 16px;
  background: #fde8eb;
  border: 1px solid #f5c2c8;
  color: var(--brand-error);
  border-radius: var(--brand-radius);
  margin-bottom: 16px;
}