:root {
  --color-primary: #7A2734;
  --color-primary-dark: #5C1D27;
  --color-tint: #F3E4E6;
  --color-surface-muted: #F5F5F5;
  --color-bg: #FFFFFF;
  --color-text: #222222;
  --color-text-muted: #6B6B6B;
  --color-border: #DDDDDD;
  --color-error: #B3261E;
  --color-error-tint: #FBEAE8;
  --color-success: #1E6B3A;
  --color-success-tint: #E7F1EB;
  --color-warning: #96650A;
  --color-warning-tint: #FBF0DE;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

/* Splash */
.splash-body {
  background: var(--color-primary);
  min-height: 100vh;
}
.splash-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
  text-align: center;
  text-decoration: none;
  color: #fff;
}
.splash-crest {
  width: 150px;
  height: auto;
  margin-bottom: 24px;
}
.splash-title {
  font-size: 28px;
  font-weight: 600;
  margin: 0 0 10px;
}
.splash-subtitle {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  margin: 0 0 32px;
}
.btn-splash {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 24px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
}

/* Login */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--color-bg);
}
.login-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
  text-align: center;
}
.login-crest {
  width: 84px;
  height: auto;
  display: block;
  margin: 0 auto 18px;
}
.login-box h1 {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 6px;
}
.login-subtitle {
  color: var(--color-text-muted);
  font-size: 13px;
  margin: 0 0 24px;
}
.login-box label {
  display: block;
  text-align: left;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.login-box input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 16px;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
}
.login-box .error { color: var(--color-error); font-size: 13px; margin-bottom: 12px; }

/* App shell: sidebar + main */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--color-surface-muted);
  border-right: 1px solid var(--color-border);
  padding: 20px 12px;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px 20px;
  font-weight: 600;
  font-size: 14px;
}

.sidebar-mark {
  width: 34px;
  height: 34px;
  object-fit: contain;
  flex-shrink: 0;
}

.sidebar-nav { display: flex; flex-direction: column; gap: 2px; }

.nav-link {
  display: block;
  padding: 9px 10px;
  border-radius: var(--radius);
  color: var(--color-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}
.nav-link:hover { background: var(--color-bg); }
.nav-link.active {
  background: var(--color-tint);
  color: var(--color-primary);
  font-weight: 700;
}

.sidebar-sublist {
  display: flex;
  flex-direction: column;
  margin: 2px 0 10px 12px;
  padding-left: 10px;
  border-left: 1px solid var(--color-border);
  gap: 1px;
}

.nav-sublink {
  display: block;
  padding: 6px 8px;
  border-radius: var(--radius);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 13px;
}
.nav-sublink:hover { background: var(--color-bg); color: var(--color-text); }
.nav-sublink.active {
  background: var(--color-tint);
  color: var(--color-primary);
  font-weight: 600;
}

.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 32px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.topbar-actions { display: flex; gap: 14px; align-items: center; }

.user-email {
  font-size: 13px;
  color: var(--color-text-muted);
}

main { max-width: 920px; padding: 32px 40px 80px; width: 100%; }

.page-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 8px;
}

.page-heading h1 {
  font-size: 22px;
  font-weight: 600;
  margin: 0;
}

.page-heading .sub {
  color: var(--color-text-muted);
  font-size: 13px;
  margin-top: 4px;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 36px 0 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.eyebrow::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--color-border);
}

.register {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.row {
  display: grid;
  grid-template-columns: 4px 1.4fr 0.7fr 0.9fr 0.9fr auto;
  align-items: center;
  gap: 18px;
  padding: 16px 20px 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.row:last-child { border-bottom: none; }

.tick { align-self: stretch; }
.tick.ok { background: var(--color-success); }
.tick.warn { background: var(--color-warning); }
.tick.bad { background: var(--color-error); }
.tick.unknown { background: var(--color-border); }

.site-name { font-weight: 600; }
.site-url {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  width: fit-content;
}
.badge.ok { background: var(--color-success-tint); color: var(--color-success); }
.badge.warn { background: var(--color-warning-tint); color: var(--color-warning); }
.badge.bad { background: var(--color-error-tint); color: var(--color-error); }
.badge.unknown { background: var(--color-surface-muted); color: var(--color-text-muted); }

.version {
  font-size: 13px;
  color: var(--color-text-muted);
}

.timestamp {
  font-size: 12px;
  color: var(--color-text-muted);
}

.row-actions { display: flex; gap: 8px; }

button, .btn {
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  padding: 7px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
button:hover, .btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
button:focus-visible, .btn:focus-visible, input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); color: #fff; }

.btn-danger { color: var(--color-error); }
.btn-danger:hover { border-color: var(--color-error); color: var(--color-error); }

.empty-state {
  padding: 40px 20px;
  text-align: center;
  color: var(--color-text-muted);
}

details.add-site {
  margin-top: 40px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 18px 20px;
}
details.add-site summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
}

form.add-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}
form.add-form label {
  display: block;
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
form.add-form input, form.add-form select {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 14px;
  background: var(--color-bg);
  color: var(--color-text);
}
form.add-form .full { grid-column: 1 / -1; }
form.add-form .submit-row { grid-column: 1 / -1; margin-top: 4px; }

.updates-count { font-size: 13px; }

.back-link {
  display: inline-block;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 13px;
  margin-bottom: 20px;
}
.back-link:hover { color: var(--color-primary); }

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 32px;
}
.detail-field {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.detail-label {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.detail-value { font-size: 15px; font-weight: 600; word-break: break-word; }

.update-row { grid-template-columns: 4px 1fr auto; }

@media (max-width: 720px) {
  .detail-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .app-shell { flex-direction: column; }
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    padding: 12px 16px;
  }
  .sidebar-nav { flex-direction: row; }
}

@media (max-width: 720px) {
  .topbar, main { padding-left: 20px; padding-right: 20px; }
  .page-heading { flex-direction: column; align-items: flex-start; gap: 12px; }
  .row {
    grid-template-columns: 4px 1fr;
    grid-template-areas:
      "tick name"
      "tick status"
      "tick version"
      "tick actions";
    row-gap: 8px;
    padding: 16px 16px 16px 0;
  }
  form.add-form { grid-template-columns: 1fr; }
}