/* ==========================================================================
   NEXUS CLOUD PC - UI Components & Controls
   ========================================================================== */

/* Navbar Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: var(--bg-glass-heavy);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.header.scrolled {
  background: rgba(8, 12, 20, 0.95);
  border-bottom: 1px solid var(--border-medium);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 1rem;
  position: relative;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
  cursor: pointer;
  flex-shrink: 0;
  white-space: nowrap;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, #00d2ff, #2563eb);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.4);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.brand-icon::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shine 3s infinite;
}

@keyframes shine {
  0% { left: -100%; }
  20% { left: 100%; }
  100% { left: 100%; }
}

.brand-text span {
  color: var(--accent-cyan);
}

.brand-tag {
  font-size: 0.65rem;
  background: rgba(0, 210, 255, 0.15);
  color: var(--accent-cyan);
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  border: 1px solid rgba(0, 210, 255, 0.3);
  margin-left: 6px;
  text-transform: uppercase;
  font-weight: 700;
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
}

.nav-menu li {
  flex-shrink: 0;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 0.8rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.3;
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: var(--accent-cyan);
  background: rgba(0, 210, 255, 0.12);
  border: 1px solid rgba(0, 210, 255, 0.25);
  font-weight: 600;
}

/* Right Nav Controls */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* Wallet Pill Widget */
.wallet-pill {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.88rem;
}

.wallet-pill:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 210, 255, 0.1);
  box-shadow: 0 0 12px rgba(0, 210, 255, 0.15);
}

.wallet-icon {
  color: #fbbf24;
  display: flex;
  align-items: center;
}

.wallet-balance {
  font-weight: 700;
  color: var(--text-primary);
}

.wallet-add-btn {
  background: var(--accent-cyan);
  color: var(--text-inverse);
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: bold;
}

/* Mobile Nav Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.35rem;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  font-family: inherit;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.85rem 1.85rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

.btn-primary {
  background: linear-gradient(135deg, #00d2ff 0%, #0099ff 100%);
  color: #030712;
  box-shadow: 0 4px 16px rgba(0, 210, 255, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #33dcff 0%, #1ab2ff 100%);
  box-shadow: 0 6px 24px rgba(0, 210, 255, 0.45);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff;
}

.btn-outline-cyan {
  background: transparent;
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 210, 255, 0.4);
}

.btn-outline-cyan:hover {
  background: rgba(0, 210, 255, 0.12);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 210, 255, 0.2);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  box-shadow: 0 4px 16px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  background: linear-gradient(135deg, #34d399, #10b981);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-danger {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  color: #fff;
}

.btn-danger:hover {
  background: linear-gradient(135deg, #f87171, #ef4444);
}

/* Badges & Indicators */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 600;
  border-radius: var(--radius-pill);
  line-height: 1;
}

.badge-cyan {
  background: rgba(0, 210, 255, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 210, 255, 0.25);
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

.badge-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger);
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-dot.online {
  background-color: var(--color-success);
  box-shadow: 0 0 8px var(--color-success);
  animation: pulse-dot 2s infinite;
}

.status-dot.busy {
  background-color: var(--color-warning);
}

.status-dot.offline {
  background-color: var(--text-muted);
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Glass Cards */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all var(--transition-normal);
  position: relative;
}

.card:hover {
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.card-interactive {
  cursor: pointer;
}

.card-interactive:hover {
  border-color: var(--border-active);
  transform: translateY(-3px);
  box-shadow: var(--shadow-cyan);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

/* Modal Overlay & Dialog */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 7, 13, 0.82);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-backdrop.show {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg), 0 0 40px rgba(0, 210, 255, 0.1);
  transform: scale(0.95) translateY(12px);
  transition: all var(--transition-smooth);
}

.modal-backdrop.show .modal-dialog {
  transform: scale(1) translateY(0);
}

.modal-dialog.modal-lg {
  max-width: 800px;
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
}

.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.2rem;
  border-radius: var(--radius-xs);
}

.modal-close-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
}

/* Toast Notifications Container */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: var(--bg-secondary);
  border: 1px solid var(--border-medium);
  border-left: 4px solid var(--accent-cyan);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
  min-width: 300px;
  max-width: 420px;
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  transform: translateX(120%);
  opacity: 0;
  transition: all var(--transition-smooth);
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast.toast-success {
  border-left-color: var(--color-success);
}

.toast.toast-danger {
  border-left-color: var(--color-danger);
}

.toast.toast-warning {
  border-left-color: var(--color-warning);
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 0.2rem;
}

.toast-message {
  font-size: 0.84rem;
  color: var(--text-secondary);
}

/* Segmented Control / Tabs */
.segmented-control {
  display: inline-flex;
  background: var(--bg-tertiary);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  gap: 4px;
}

.segment-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.45rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: inherit;
}

.segment-btn:hover {
  color: var(--text-primary);
}

.segment-btn.active {
  background: var(--accent-cyan);
  color: var(--text-inverse);
  box-shadow: var(--shadow-sm);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  padding: 4rem 0 2rem 0;
  margin-top: 5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  font-size: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.85rem;
}

@media (max-width: 1200px) {
  .nav-menu {
    gap: 0.2rem;
  }
  .nav-link {
    font-size: 0.84rem;
    padding: 0.4rem 0.55rem;
  }
  .brand-logo {
    font-size: 1.15rem;
  }
}

@media (max-width: 1024px) {
  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 15, 26, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-medium);
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 0.5rem;
    box-shadow: var(--shadow-lg);
    z-index: 150;
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    justify-content: flex-start;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    border-radius: var(--radius-sm);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}