:root {
  --navy:  #1a2e4a;
  --gold:  #c9a96e;
  --cream: #f4f0e8;
  --white: #ffffff;
  --text:  #2a2420;
  --muted: #6b7280;
  --border:#e5e0d8;
  --radius: 6px;
}

*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  color: var(--text);
  background: var(--cream);
  line-height: 1.55;
}

/* ── NAV ─────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  background: var(--navy);
  color: #fff;
}
.nav-brand {
  font-size: 16px;
  font-weight: 600;
  color: var(--gold);
  text-decoration: none;
  letter-spacing: 0.04em;
}
.nav-links { display: flex; align-items: center; gap: 20px; }
.nav-links a {
  color: #b0bfd4;
  text-decoration: none;
  font-size: 14px;
}
.nav-links a:hover { color: #fff; }
.nav-divider { width: 1px; height: 18px; background: rgba(255,255,255,0.15); }
.nav-link-muted { color: #7a8fa8 !important; font-size: 13px !important; }
.nav-link-muted:hover { color: #b0bfd4 !important; }
.btn-nav-logout {
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  color: #b0bfd4;
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  line-height: 1.4;
}
.btn-nav-logout:hover { border-color: rgba(255,255,255,0.4); color: #fff; }

/* ── MAIN ────────────────────────────────────── */
.main {
  max-width: 860px;
  margin: 40px auto;
  padding: 0 24px;
}

h1 { font-size: 26px; font-weight: 600; margin: 0 0 4px; color: var(--navy); }
h3 { font-size: 15px; font-weight: 600; margin: 0 0 12px; color: var(--navy); }
.subtitle { color: var(--muted); margin: 0 0 28px; }
.muted { color: var(--muted); }
.hint  { color: var(--muted); font-size: 12px; }
.warn  { color: #b45309; }

/* ── PAGE HEADER ─────────────────────────────── */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}

/* ── CARD ────────────────────────────────────── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 16px;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.provider-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

/* ── ALERT ───────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 14px;
}
.alert-success { background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534; }
.alert-info    { background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af; }
.alert-error   { background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; }

/* ── BADGE ───────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: #e5e7eb;
  color: #374151;
}
.badge-google   { background: #dbeafe; color: #1d4ed8; }
.badge-caldav   { background: #f3e8ff; color: #6d28d9; }
.badge-outlook  { background: #dbeafe; color: #1d4ed8; }
.badge-ics      { background: #fef3c7; color: #92400e; }
.badge-gmail    { background: #fce7f3; color: #9d174d; }
.badge-smtp     { background: #d1fae5; color: #065f46; }
.badge-success  { background: #d1fae5; color: #065f46; }
.badge-error    { background: #fef2f2; color: #991b1b; }

/* ── TABLE ───────────────────────────────────── */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th { text-align: left; padding: 8px 12px; border-bottom: 2px solid var(--border); color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.table td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: none; }

/* ── FORM ────────────────────────────────────── */
.form { max-width: 560px; }
.form-group { margin-bottom: 18px; }
.form-row { display: flex; gap: 16px; }
.form-row .form-group { flex: 1; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--navy); margin-bottom: 5px; }
.form-group input, .form-group select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  background: #fff;
  color: var(--text);
  transition: border-color 0.15s;
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--navy);
}
.field-hint { font-size: 12px; color: var(--muted); margin: 4px 0 0; }
.form-actions { display: flex; align-items: center; gap: 12px; margin-top: 24px; }

details summary { cursor: pointer; list-style: none; }
details summary::-webkit-details-marker { display: none; }

/* ── BUTTONS ─────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s, background 0.15s;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: #243d60; }
.btn-ghost   { background: transparent; color: var(--navy); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--cream); }
.btn-danger  { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.btn-danger:hover { background: #fee2e2; }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ── LIST ────────────────────────────────────── */
.list { list-style: none; padding: 0; margin: 0; }
.list li { padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 14px; display: flex; align-items: center; gap: 8px; }
.list li:last-child { border-bottom: none; }