/* Landing page */
.landing-page {
  background: var(--bg-base);
  min-height: 100vh;
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
}

.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10,11,16,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}
.landing-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.landing-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-primary-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.landing-brand svg {
  -webkit-text-fill-color: initial;
}
.landing-nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.landing-nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.landing-nav-links a:hover {
  color: var(--text-primary);
}

/* Hero */
.landing-hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 140px 24px 80px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.landing-badge {
  display: inline-block;
  padding: 6px 14px;
  background: var(--accent-primary-bg);
  color: var(--accent-primary);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}
.landing-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.text-gradient {
  background: linear-gradient(135deg, var(--accent-primary), #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.landing-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 480px;
}
.landing-hero-actions {
  display: flex;
  gap: 12px;
}
.landing-hero-actions .btn {
  padding: 12px 28px;
  font-size: 0.95rem;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: rgba(0,0,0,0.1);
}

/* Hero visual */
.hero-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 80px rgba(99,102,241,0.08);
}
.hero-card-header {
  display: flex;
  gap: 6px;
  padding: 14px 16px;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}
.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.hero-card-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hero-line {
  height: 10px;
  background: var(--bg-overlay);
  border-radius: 6px;
}
.hero-stats {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin: 8px 0;
}
.hero-stat {
  background: var(--bg-elevated);
  border-radius: var(--radius-md);
  padding: 16px 12px;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
}
.hero-stat span {
  display: block;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 4px;
}

/* Features */
.landing-features {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px;
  text-align: center;
}
.landing-features h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.landing-features-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 48px;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  text-align: left;
}
.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
}
.feature-card:hover {
  border-color: var(--border-default);
  transform: translateY(-2px);
}
.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feature-icon svg {
  width: 22px;
  height: 22px;
}
.feature-card h3 {
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Landing login section */
.landing-login {
  display: flex;
  justify-content: center;
  padding: 40px 24px 80px;
}

/* Footer */
.landing-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 40px 24px;
}
.landing-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.landing-footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--text-primary);
}
.landing-footer-links a {
  color: var(--accent-primary);
  font-size: 0.9rem;
  font-weight: 500;
}
.landing-footer-copy {
  color: var(--text-muted);
  font-size: 0.8rem;
  width: 100%;
  text-align: center;
  margin-top: 16px;
}

/* Landing responsive */
@media (max-width: 768px) {
  .landing-hero {
    grid-template-columns: 1fr;
    padding: 100px 20px 40px;
    gap: 40px;
  }
  .landing-hero h1 {
    font-size: 2rem;
  }
  .landing-subtitle {
    font-size: 0.95rem;
  }
  .landing-hero-actions {
    flex-direction: column;
  }
  .landing-hero-actions .btn {
    text-align: center;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .landing-nav-links a:not(.btn) {
    display: none;
  }
  .landing-footer-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* Login view (fallback) */
.login-view {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg-base);
}

.login-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}
.login-logo h1 {
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-primary-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-error {
  color: var(--accent-danger);
  font-size: 0.85rem;
  margin-top: 12px;
  min-height: 1.2em;
}

/* Panel layout */
.panel-view {
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
  max-width: 100vw;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.sidebar-brand svg {
  flex-shrink: 0;
}
.sidebar-brand h2 {
  font-size: 1.15rem;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-primary-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sidebar-nav {
  padding: 12px;
  flex: 1;
}
.sidebar-section {
  margin-bottom: 8px;
}
.sidebar-section-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 8px 12px 4px;
  font-weight: 600;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.nav-item.active {
  background: var(--accent-primary-bg);
  color: var(--accent-primary-hover);
}
.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Main wrapper */
.main-wrapper {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Topbar */
.topbar {
  height: var(--topbar-height);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.topbar-user:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* Content area */
.content {
  flex: 1;
  padding: 28px;
  overflow-y: auto;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.page-header h2 {
  font-size: 1.4rem;
}

/* Hamburger button - hidden on desktop */
.btn-hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
}
.btn-hamburger:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}


/* Responsive */
@media (max-width: 768px) {
  .btn-hamburger {
    display: flex;
  }
  .sidebar {
    position: fixed;
    top: 0;
    left: -280px;
    bottom: 0;
    width: 280px;
    z-index: 200;
    transition: left 0.2s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .sidebar.open {
    left: 0;
  }
  .main-wrapper {
    margin-left: 0;
    width: 100%;
    overflow-x: hidden;
  }
  .content {
    padding: 12px;
    overflow-x: hidden;
  }
  .topbar {
    padding: 0 12px;
  }
  .login-card {
    margin: 12px;
    padding: 20px;
  }
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  .page-header h2 {
    font-size: 1.1rem;
  }
  .site-detail-header {
    flex-wrap: wrap;
    gap: 8px;
  }
  .site-detail-header h2 {
    font-size: 1rem;
    word-break: break-all;
  }
  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .tab {
    padding: 8px 12px;
    font-size: 0.8rem;
    white-space: nowrap;
  }
  .modal {
    max-width: calc(100vw - 24px);
    margin: 12px;
    max-height: 90vh;
  }
  .modal-body {
    padding: 16px;
  }
  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .stat-card {
    padding: 12px;
    gap: 10px;
  }
  .stat-card-icon {
    width: 36px;
    height: 36px;
  }
  .stat-card-icon svg {
    width: 18px;
    height: 18px;
  }
  .stat-card-info h3 {
    font-size: 1.1rem;
  }
  .stat-card-info p {
    font-size: 0.75rem;
  }
  .card {
    padding: 14px;
  }
  .form-group {
    margin-bottom: 12px;
  }
  input[type="text"],
  input[type="password"],
  input[type="email"],
  input[type="number"],
  select {
    padding: 8px 10px;
    font-size: 16px;
  }
  .btn {
    padding: 8px 14px;
    font-size: 0.85rem;
  }
  .btn-block {
    padding: 10px;
  }
  .toast-container {
    left: 12px;
    right: 12px;
    top: auto;
    bottom: 12px;
  }
  .toast {
    min-width: auto;
    max-width: none;
    font-size: 0.82rem;
    padding: 10px 14px;
  }
  .monitoring-grid {
    grid-template-columns: 1fr;
  }
  .chart-card canvas {
    height: 150px;
  }
  .dns-info {
    font-size: 0.75rem;
    padding: 12px;
    word-break: break-all;
  }
  .danger-zone {
    padding: 14px;
  }
}

@media (max-width: 380px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .topbar-user span {
    display: none;
  }
  .sidebar {
    width: 250px;
    left: -250px;
  }
}