* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #f1f5f9;
  --bg-card: #fff;
  --bg-card-muted: #f8fafc;
  --bg-site-row: #f8fafc;
  --text: #1e293b;
  --text-muted: #64748b;
  --text-muted-strong: #94a3b8;
  --border: #e2e8f0;
  --input-bg: #fff;
  --header-bg: #1e293b;
  --header-text: #fff;
  --preview-bg: #1e293b;
  --preview-text: #e2e8f0;
  --btn-secondary-bg: #e2e8f0;
  --btn-secondary-text: #334155;
  --btn-secondary-hover: #cbd5e1;
  --select-border: #e2e8f0;
  --modal-bg: rgba(0,0,0,0.4);
  --modal-content-bg: #fff;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.2);
}
[data-theme="dark"] {
  --bg: #0f172a;
  --bg-card: #1e293b;
  --bg-card-muted: #334155;
  --bg-site-row: #334155;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-muted-strong: #64748b;
  --border: #475569;
  --input-bg: #334155;
  --header-bg: #0f172a;
  --header-text: #e2e8f0;
  --preview-bg: #0f172a;
  --preview-text: #cbd5e1;
  --btn-secondary-bg: #475569;
  --btn-secondary-text: #e2e8f0;
  --btn-secondary-hover: #64748b;
  --select-border: #475569;
  --modal-bg: rgba(0,0,0,0.6);
  --modal-content-bg: #1e293b;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.5);
}
[data-theme="dark"] .btn-secondary {
  background: linear-gradient(180deg, #64748b 0%, #475569 100%);
  box-shadow: 0 2px 6px rgba(0,0,0,0.3);
}
[data-theme="dark"] .btn-secondary:hover {
  background: linear-gradient(180deg, #475569 0%, #334155 100%);
  box-shadow: 0 3px 8px rgba(0,0,0,0.4);
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.5; }
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #475569 0%, #1e293b 100%); }
.login-wrap { display: flex; flex-direction: column; align-items: center; }
.login-card { background: var(--bg-card); padding: 2rem; border-radius: 12px; box-shadow: var(--shadow-lg); width: 100%; max-width: 360px; }
.login-card h1 { font-size: 1.5rem; margin-bottom: 0.25rem; }
.login-card p { color: var(--text-muted); margin-bottom: 1.5rem; font-size: 0.9rem; }
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 0.35rem; }
.form-group input, .form-group textarea { width: 100%; padding: 0.6rem 0.75rem; border: 1px solid var(--border); border-radius: 8px; font-size: 1rem; background: var(--input-bg); color: var(--text); }
.form-group textarea { font-family: 'Monaco', 'Menlo', monospace; font-size: 0.85rem; resize: vertical; }
.btn {
  padding: 0.6rem 1.25rem;
  border-radius: 10px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); box-shadow: 0 1px 2px rgba(0,0,0,0.12); }
.btn-primary {
  background: linear-gradient(180deg, #64748b 0%, #475569 100%);
  color: #fff;
  box-shadow: 0 3px 6px rgba(71,85,105,0.35);
}
.btn-primary:hover { background: linear-gradient(180deg, #475569 0%, #334155 100%); box-shadow: 0 4px 10px rgba(71,85,105,0.4); }
.btn-secondary {
  background: linear-gradient(180deg, #f1f5f9 0%, var(--btn-secondary-bg) 100%);
  color: var(--btn-secondary-text);
  box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}
.btn-secondary:hover { background: linear-gradient(180deg, #e2e8f0 0%, var(--btn-secondary-hover) 100%); box-shadow: 0 3px 6px rgba(0,0,0,0.12); }
.btn-ghost { background: none; color: var(--text-muted-strong); box-shadow: none; }
.btn-ghost:hover { color: var(--text); transform: none; }
.btn-danger {
  background: linear-gradient(180deg, #ef4444 0%, #dc2626 100%);
  color: #fff;
  box-shadow: 0 3px 6px rgba(220,38,38,0.35);
}
.btn-danger:hover { background: linear-gradient(180deg, #dc2626 0%, #b91c1c 100%); box-shadow: 0 4px 10px rgba(220,38,38,0.4); }
.error { color: #dc2626; font-size: 0.85rem; margin-bottom: 0.5rem; }
#loginError { min-height: 1.25em; }
.hidden { display: none !important; }
.header { background: var(--header-bg); color: var(--header-text); padding: 1rem 1.5rem; display: flex; justify-content: space-between; align-items: center; }
.header h1 { font-size: 1.2rem; }
.header-actions { display: flex; align-items: center; gap: 1rem; }
.muted { color: var(--text-muted-strong); font-size: 0.9rem; }
.main { max-width: 900px; margin: 0 auto; padding: 1.5rem; }
.card { background: var(--bg-card); padding: 2rem; border-radius: 12px; box-shadow: var(--shadow); margin-bottom: 1.5rem; }
.card h2 { font-size: 1.25rem; margin-bottom: 0.5rem; }
.card .muted { margin-bottom: 1.5rem; line-height: 1.5; }
.actions { display: flex; gap: 1rem; margin-top: 2rem; }
.msg { padding: 0.5rem 0.75rem; border-radius: 6px; font-size: 0.9rem; margin-top: 1rem; }
.msg.success { background: #dcfce7; color: #166534; }
.msg.error { background: #fee2e2; color: #991b1b; }

/* Dominios: cards con espaciado generoso */
#sitesList { display: flex; flex-direction: column; gap: 1.25rem; }
.site-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem 1.5rem;
  align-items: start;
  padding: 1.25rem 1.5rem;
  background: var(--bg-site-row);
  border-radius: 10px;
  border: 1px solid var(--border);
}
@media (max-width: 640px) {
  .site-row { grid-template-columns: 1fr; }
}
.site-fields {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
}
.site-domain {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  background: var(--input-bg);
  color: var(--text);
}
.site-fields-row { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.site-port {
  width: 90px;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  background: var(--input-bg);
  color: var(--text);
}
.site-www {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
}
.site-www input { width: auto; }
.site-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  min-width: 0;
  margin-top: 0.25rem;
}
.status-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; cursor: default; }
.status-pending { background: #94a3b8; }
.status-checking { background: #f59e0b; animation: pulse 1s ease-in-out infinite; }
.status-ok { background: #22c55e; }
.status-fail { background: #dc2626; }
.status-msg { font-size: 0.85rem; line-height: 1.4; }
.status-msg-ok { color: #16a34a; }
.status-msg-fail { color: #dc2626; font-weight: 500; }
@keyframes pulse { 50% { opacity: 0.5; } }
.site-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.75rem;
  flex-shrink: 0;
}
@media (max-width: 640px) {
  .site-meta { align-items: stretch; }
}
.site-actions { display: flex; gap: 0.65rem; flex-wrap: wrap; }
.btn-check {
  background: linear-gradient(180deg, #22c55e 0%, #16a34a 100%);
  color: #fff !important;
  font-size: 0.9rem;
  padding: 0.55rem 1rem;
  box-shadow: 0 3px 6px rgba(22,163,74,0.35);
}
.btn-check:hover { background: linear-gradient(180deg, #16a34a 0%, #15803d 100%); box-shadow: 0 4px 10px rgba(22,163,74,0.4); }
.btn-preview {
  background: linear-gradient(180deg, #60a5fa 0%, #3b82f6 100%);
  color: #fff;
  padding: 0.55rem 1rem;
  box-shadow: 0 3px 6px rgba(59,130,246,0.35);
}
.btn-preview:hover { background: linear-gradient(180deg, #3b82f6 0%, #2563eb 100%); box-shadow: 0 4px 10px rgba(59,130,246,0.4); }
.btn-remove {
  background: linear-gradient(180deg, #ef4444 0%, #dc2626 100%);
  color: #fff !important;
  font-size: 0.9rem;
  padding: 0.55rem 1rem;
  box-shadow: 0 3px 6px rgba(220,38,38,0.35);
}
.btn-remove:hover { background: linear-gradient(180deg, #dc2626 0%, #b91c1c 100%); box-shadow: 0 4px 10px rgba(220,38,38,0.4); }
.btn-add-site { margin-top: 1rem; padding: 0.7rem 1.25rem; }

.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.modal-backdrop { position: absolute; inset: 0; background: var(--modal-bg); cursor: pointer; }
.modal-content { position: relative; background: var(--modal-content-bg); color: var(--text); padding: 1.5rem; border-radius: 12px; box-shadow: var(--shadow-lg); max-width: 400px; width: 100%; }
.modal-content h3 { margin-bottom: 0.5rem; }
.modal-content .form-group { margin: 1rem 0; }
.modal-content .form-group input { background: var(--input-bg); color: var(--text); border-color: var(--border); }
.modal-actions { display: flex; gap: 0.75rem; justify-content: flex-end; margin-top: 1rem; }
.modal-error { color: #dc2626; font-size: 0.85rem; margin-top: 0.5rem; }
.card-muted { background: var(--bg-card-muted); }
.card-muted h3 { font-size: 0.95rem; margin-bottom: 0.5rem; color: var(--text-muted); }
#caddyPreview { background: var(--preview-bg); color: var(--preview-text); padding: 1rem; border-radius: 8px; font-family: 'Monaco','Menlo',monospace; font-size: 0.8rem; overflow-x: auto; margin: 0; white-space: pre; }

.backup-actions { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; }
.backup-actions select { padding: 0.5rem 0.75rem; border: 1px solid var(--select-border); border-radius: 6px; font-size: 0.95rem; min-width: 220px; background: var(--input-bg); color: var(--text); }
#tfaQR img { max-width: 200px; height: auto; border-radius: 8px; }
.footer { text-align: center; padding: 1rem; font-size: 0.85rem; color: var(--text-muted-strong); }
.footer a { color: var(--text-muted); text-decoration: none; }
.footer a:hover { color: var(--text); text-decoration: underline; }
.login-page .footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  color: rgba(255,255,255,0.6);
}
.login-page .footer a { color: rgba(255,255,255,0.8); }
.login-page .footer a:hover { color: #fff; }
body.dashboard-page { display: flex; flex-direction: column; min-height: 100vh; }
body.dashboard-page .main { flex: 1; }
body.dashboard-page .footer { margin-top: auto; }

.theme-toggle { background: none; border: 1px solid rgba(255,255,255,0.3); color: inherit; padding: 0.4rem 0.6rem; border-radius: 6px; cursor: pointer; font-size: 1.1rem; }
.theme-toggle:hover { background: rgba(255,255,255,0.1); }
.login-page .theme-toggle { color: rgba(255,255,255,0.9); }
.login-page .theme-toggle:hover { background: rgba(255,255,255,0.15); }
.dashboard-page .theme-toggle { border-color: rgba(255,255,255,0.3); }
[data-theme="dark"] .dashboard-page .theme-toggle { border-color: rgba(226,232,240,0.3); }