/**
 * Layout - Polished Sidebar & Header
 */

/* Sidebar */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: linear-gradient(180deg, #ffffff 0%, #f8fdfc 100%);
  border-right: 1px solid rgba(20, 184, 166, 0.12);
  display: flex;
  flex-direction: column;
  z-index: var(--z-sidebar);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 
    4px 0 20px rgba(13, 115, 119, 0.06),
    1px 0 4px rgba(13, 115, 119, 0.04);
}

/* Brand */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 12px;
  border-bottom: 1px solid rgba(20, 184, 166, 0.1);
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.04), rgba(34, 211, 238, 0.02));
}

.brand-logo {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border-radius: 12px;
  box-shadow: 
    0 4px 16px rgba(45, 212, 191, 0.25),
    0 2px 8px rgba(45, 212, 191, 0.15);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
  overflow: visible;
}

.brand-logo:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 
    0 8px 24px rgba(45, 212, 191, 0.4),
    0 4px 12px rgba(45, 212, 191, 0.3);
}

.brand-logo svg {
  width: 100%;
  height: 100%;
  color: white;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.brand-name {
  font-size: 13px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--teal-dark), var(--teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-tag {
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

/* Nav Menu */
.nav-menu {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
  overflow-x: hidden;
}

.nav-menu::-webkit-scrollbar {
  width: 4px;
}

.nav-menu::-webkit-scrollbar-track {
  background: transparent;
}

.nav-menu::-webkit-scrollbar-thumb {
  background: var(--teal-light);
  border-radius: 2px;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  color: var(--text-secondary);
  font-size: 12.5px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: linear-gradient(180deg, var(--teal-light), var(--cyan));
  border-radius: 0 3px 3px 0;
  transition: height 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover {
  color: var(--teal-dark);
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.08), rgba(34, 211, 238, 0.04));
}

.nav-link:hover::before {
  height: 18px;
}

.nav-link.active {
  color: var(--teal-dark);
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.12), rgba(34, 211, 238, 0.06));
  box-shadow: 0 2px 6px rgba(45, 212, 191, 0.15);
}

.nav-link.active::before {
  height: 24px;
}

.nav-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.08), rgba(34, 211, 238, 0.04));
  border-radius: 7px;
  flex-shrink: 0;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover .nav-icon,
.nav-link.active .nav-icon {
  background: linear-gradient(135deg, var(--teal-light), var(--cyan));
  box-shadow: 0 3px 10px rgba(45, 212, 191, 0.3);
  transform: scale(1.05);
}

.nav-link:hover .nav-icon svg,
.nav-link.active .nav-icon svg {
  color: white;
}

.nav-icon svg {
  width: 15px;
  height: 15px;
  color: var(--teal);
  transition: color 0.25s ease;
}

.nav-label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
}

.nav-badge {
  font-size: 9px;
  padding: 2px 5px;
  border-radius: 8px;
  font-weight: 600;
  flex-shrink: 0;
  margin-left: auto;
}

/* Sidebar Footer */
.sidebar-footer {
  padding: 12px 10px;
  border-top: 1px solid rgba(20, 184, 166, 0.1);
  background: linear-gradient(180deg, transparent, rgba(45, 212, 191, 0.03));
}

.sidebar-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(45, 212, 191, 0.04));
  border-radius: 7px;
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-light);
  transition: all 0.3s ease;
}

.status-dot.online {
  background: var(--success);
  box-shadow: 
    0 0 0 3px rgba(16, 185, 129, 0.2),
    0 0 8px rgba(16, 185, 129, 0.4);
  animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
  0%, 100% { 
    box-shadow: 
      0 0 0 3px rgba(16, 185, 129, 0.2),
      0 0 8px rgba(16, 185, 129, 0.4);
  }
  50% { 
    box-shadow: 
      0 0 0 5px rgba(16, 185, 129, 0.15),
      0 0 12px rgba(16, 185, 129, 0.3);
  }
}

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: linear-gradient(180deg, #ffffff 0%, #fafffe 100%);
  border-bottom: 1px solid rgba(20, 184, 166, 0.1);
  box-shadow: 
    0 2px 12px rgba(13, 115, 119, 0.04),
    0 1px 3px rgba(13, 115, 119, 0.03);
}

.header-left,
.header-center,
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-menu-btn {
  display: none;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.06), rgba(34, 211, 238, 0.03));
  border: 1px solid rgba(20, 184, 166, 0.15);
  border-radius: 10px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.25s ease;
}

.header-menu-btn:hover {
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.12), rgba(34, 211, 238, 0.06));
  border-color: var(--teal-light);
  color: var(--teal-dark);
  transform: scale(1.02);
}

.header-menu-btn svg {
  width: 18px;
  height: 18px;
}

/* Breadcrumb */
.header-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb-home svg {
  width: 18px;
  height: 18px;
  color: var(--teal);
}

/* Status Badge */
.header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.06), rgba(34, 211, 238, 0.03));
  border: 1px solid rgba(20, 184, 166, 0.12);
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.3s ease;
}

.status-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--text-light);
  transition: all 0.3s ease;
}

.header-status[data-status="online"] {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(45, 212, 191, 0.04));
  border-color: rgba(16, 185, 129, 0.2);
}

.header-status[data-status="online"] .status-indicator {
  background: var(--success);
  box-shadow: 0 0 6px rgba(16, 185, 129, 0.5);
}

.header-status[data-status="online"] .status-text {
  color: var(--success);
}

/* Live Badge */
.live-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(45, 212, 191, 0.05));
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: 16px;
  font-size: 10px;
  font-weight: 700;
  color: var(--success);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: livePulse 1.5s ease-in-out infinite;
}

@keyframes livePulse {
  0%, 100% { 
    opacity: 1;
    transform: scale(1);
  }
  50% { 
    opacity: 0.6;
    transform: scale(0.85);
  }
}

/* Header Update */
.header-update {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

.header-update svg {
  width: 18px;
  height: 18px;
  color: var(--teal);
  stroke-width: 2.5;
}

/* Header Buttons */
.header-btn {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.1), rgba(34, 211, 238, 0.06));
  border: 2px solid rgba(20, 184, 166, 0.2);
  border-radius: 12px;
  color: var(--teal-dark);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  position: relative;
  box-shadow: 
    0 2px 8px rgba(45, 212, 191, 0.1),
    0 1px 3px rgba(45, 212, 191, 0.08);
}

.header-btn:hover {
  background: linear-gradient(135deg, var(--teal-light), var(--cyan));
  border-color: var(--teal-light);
  color: white;
  transform: translateY(-2px) scale(1.05);
  box-shadow: 
    0 6px 20px rgba(45, 212, 191, 0.3),
    0 3px 10px rgba(45, 212, 191, 0.2);
}

.header-btn:active {
  transform: translateY(0) scale(1);
}

.header-btn svg {
  width: 20px;
  height: 20px;
  transition: transform 0.3s ease;
  stroke-width: 2.5;
}

.header-btn:hover svg {
  transform: scale(1.15);
}

/* Theme Toggle */
.header-btn .icon-moon { display: none; }

[data-theme="dark"] .header-btn .icon-sun { display: none; }
[data-theme="dark"] .header-btn .icon-moon { display: block; }

/* Notification */
.notification-dot {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 7px;
  height: 7px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid white;
  animation: notifPulse 2s ease infinite;
}

@keyframes notifPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

/* Page Header */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(20, 184, 166, 0.1);
}

.page-title h1 {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.page-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--teal-light), var(--cyan));
  border-radius: 10px;
  box-shadow: 
    0 4px 14px rgba(45, 212, 191, 0.3),
    0 2px 4px rgba(45, 212, 191, 0.2);
}

.page-icon svg {
  width: 20px;
  height: 20px;
  color: white;
}

.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
  padding-left: 50px;
}

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

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.06), rgba(34, 211, 238, 0.03));
  border: 1px solid rgba(20, 184, 166, 0.15);
  border-radius: 10px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-icon:hover {
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.12), rgba(34, 211, 238, 0.06));
  border-color: var(--teal-light);
  color: var(--teal-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(45, 212, 191, 0.15);
}

.btn-icon svg {
  width: 17px;
  height: 17px;
}

.last-update {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Responsive */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 
      8px 0 30px rgba(13, 115, 119, 0.12),
      2px 0 8px rgba(13, 115, 119, 0.08);
  }
  
  .header-menu-btn {
    display: flex;
  }
}

@media (max-width: 768px) {
  .header-status,
  .live-badge,
  .header-update {
    display: none;
  }
  
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  
  .page-actions {
    width: 100%;
  }
}

/* Dark Mode */
[data-theme="dark"] .sidebar {
  background: linear-gradient(180deg, #0c1f1d 0%, #132e2a 100%);
  border-color: rgba(45, 212, 191, 0.15);
  box-shadow: 
    4px 0 20px rgba(0, 0, 0, 0.3),
    1px 0 4px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .sidebar-brand {
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.06), rgba(34, 211, 238, 0.03));
  border-color: rgba(45, 212, 191, 0.12);
}

[data-theme="dark"] .nav-link:hover {
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.12), rgba(34, 211, 238, 0.06));
}

[data-theme="dark"] .nav-link.active {
  background: linear-gradient(135deg, rgba(45, 212, 191, 0.18), rgba(34, 211, 238, 0.09));
}

[data-theme="dark"] .app-header {
  background: linear-gradient(180deg, #0c1f1d 0%, #132e2a 100%);
  border-color: rgba(45, 212, 191, 0.12);
  box-shadow: 
    0 2px 12px rgba(0, 0, 0, 0.2),
    0 1px 3px rgba(0, 0, 0, 0.15);
}