/* ========== NEBULA PROFESSIONAL DESIGN SYSTEM ========== */
/* Global professional styles for all pages */

:root {
  --pro-radius: 12px;
  --pro-radius-lg: 16px;
  --pro-spacing: 24px;
  --pro-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  --pro-shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.3);
  --pro-shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.4);
  --pro-border: rgba(255, 255, 255, 0.08);
  --pro-hover-border: rgba(255, 255, 255, 0.15);
  --pro-bg-card: rgba(255, 255, 255, 0.02);
  --pro-bg-elevated: rgba(255, 255, 255, 0.04);
  --pro-bg-input: rgba(255, 255, 255, 0.03);
  --pro-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========== ENHANCED TOPBAR ========== */
.topbar {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid var(--pro-border);
  border-radius: var(--pro-radius-lg);
  padding: 28px;
  margin-bottom: 32px;
  box-shadow: var(--pro-shadow);
  position: relative;
  overflow: hidden;
}

.topbar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
}

.page-heading {
  flex: 1;
}

.page-heading .eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 8px;
  display: block;
}

.page-heading h1 {
  font-size: 2.25rem;
  font-weight: 700;
  margin: 0 0 8px 0;
  background: linear-gradient(135deg, #fff 0%, #a0a0a0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.page-heading .muted {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.5;
}

/* ========== ENHANCED BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--pro-radius);
  font-weight: 600;
  font-size: 0.875rem;
  border: 1px solid var(--pro-border);
  background: var(--pro-bg-card);
  color: var(--text-main);
  cursor: pointer;
  transition: var(--pro-transition);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--pro-hover-border);
  background: var(--pro-bg-elevated);
  box-shadow: var(--pro-shadow);
}

.btn.primary {
  background: linear-gradient(135deg, #fff 0%, #e5e5e5 100%);
  color: #000;
  border-color: transparent;
  box-shadow: 0 2px 8px rgba(255, 255, 255, 0.1);
}

.btn.primary:hover {
  background: linear-gradient(135deg, #f0f0f0 0%, #d0d0d0 100%);
  box-shadow: 0 4px 12px rgba(255, 255, 255, 0.15);
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--pro-border);
  color: var(--text-main);
}

.btn.ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--pro-hover-border);
}

.btn.small {
  padding: 8px 14px;
  font-size: 0.8125rem;
}

/* ========== ENHANCED CARDS ========== */
.card {
  background: var(--pro-bg-card);
  border: 1px solid var(--pro-border);
  border-radius: var(--pro-radius-lg);
  padding: 28px;
  margin-bottom: 24px;
  box-shadow: var(--pro-shadow);
  transition: var(--pro-transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
}

.card:hover {
  border-color: var(--pro-hover-border);
  box-shadow: var(--pro-shadow-lg);
}

.card > header {
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--pro-border);
}

.card > header h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
  color: var(--text-main);
}

/* ========== DOMAIN/PROXY/BACKEND GRIDS ========== */
.domains-grid,
.proxies-grid,
.backends-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.domain-card,
.proxy-card,
.backend-card {
  background: var(--pro-bg-card);
  border: 1px solid var(--pro-border);
  border-radius: var(--pro-radius-lg);
  overflow: hidden;
  transition: var(--pro-transition);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.domain-card:hover,
.proxy-card:hover,
.backend-card:hover {
  border-color: var(--pro-hover-border);
  transform: translateY(-4px);
  box-shadow: var(--pro-shadow-xl);
}

/* Card Preview/Header Section */
.domain-card-preview,
.proxy-card-preview,
.backend-card-preview {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #1a1a1a 0%, #0a0a0a 100%);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--pro-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.domain-card-preview img,
.proxy-card-preview img,
.backend-card-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Card Content */
.domain-card-content,
.proxy-card-content,
.backend-card-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
}

.domain-card-hostname,
.proxy-card-name,
.backend-card-name {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 0;
  word-break: break-word;
}

.domain-card-meta,
.proxy-card-meta,
.backend-card-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.domain-card-meta-row,
.proxy-card-meta-row,
.backend-card-meta-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.domain-card-meta-row svg,
.proxy-card-meta-row svg,
.backend-card-meta-row svg {
  width: 14px;
  height: 14px;
  opacity: 0.6;
  flex-shrink: 0;
}

/* Card Badges */
.domain-card-badges,
.proxy-card-badges,
.backend-card-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Card Actions */
.domain-card-actions,
.proxy-card-actions,
.backend-card-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--pro-border);
}

.domain-card-actions .btn,
.proxy-card-actions .btn,
.backend-card-actions .btn {
  flex: 1;
  font-size: 0.8125rem;
  padding: 8px 12px;
  justify-content: center;
}

/* ========== STATUS BADGES ========== */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-badge.success {
  background: rgba(76, 175, 80, 0.1);
  color: #4caf50;
  border: 1px solid rgba(76, 175, 80, 0.3);
}

.status-badge.warning {
  background: rgba(255, 184, 0, 0.1);
  color: #ffb800;
  border: 1px solid rgba(255, 184, 0, 0.3);
}

.status-badge.error {
  background: rgba(255, 51, 51, 0.1);
  color: #ff6666;
  border: 1px solid rgba(255, 51, 51, 0.3);
}

.status-badge.muted {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--pro-border);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

/* ========== ENHANCED FORMS ========== */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.form-field {
  display: flex;
  flex-direction: column;
}

.form-field label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}

input, select, textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--pro-bg-input);
  border: 1px solid var(--pro-border);
  border-radius: var(--pro-radius);
  color: var(--text-main);
  font-size: 0.9375rem;
  font-family: var(--font-main);
  transition: var(--pro-transition);
}

input:hover, select:hover, textarea:hover {
  border-color: var(--pro-hover-border);
  background: rgba(255, 255, 255, 0.04);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.05);
}

textarea {
  min-height: 120px;
  resize: vertical;
  line-height: 1.6;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 6px;
  line-height: 1.4;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--pro-border);
}

/* ========== ENHANCED PANELS/MODALS ========== */
.panel-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 20px;
  opacity: 1;
  transition: opacity 0.2s;
}

.panel-overlay[hidden] {
  display: none;
  opacity: 0;
}

.panel-card {
  width: 100%;
  max-width: 600px;
  background: #0a0a0a;
  border: 1px solid var(--pro-border);
  border-radius: var(--pro-radius-lg);
  padding: 32px;
  box-shadow: var(--pro-shadow-xl);
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 90vh;
  overflow-y: auto;
}

@keyframes slideUp {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--pro-border);
}

.panel-head h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0;
  color: var(--text-main);
}

.panel-head .eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 6px;
  display: block;
}

/* ========== EMPTY STATES ========== */
.empty-state {
  text-align: center;
  padding: 60px 40px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.01);
  border-radius: var(--pro-radius-lg);
  border: 1px dashed var(--pro-border);
}

.empty-state p {
  margin: 0 0 16px 0;
  font-size: 0.95rem;
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.domain-card,
.proxy-card,
.backend-card,
.card {
  animation: fadeInUp 0.4s ease-out;
  animation-fill-mode: backwards;
}

.domain-card:nth-child(1),
.proxy-card:nth-child(1),
.backend-card:nth-child(1) {
  animation-delay: 0.05s;
}

.domain-card:nth-child(2),
.proxy-card:nth-child(2),
.backend-card:nth-child(2) {
  animation-delay: 0.1s;
}

.domain-card:nth-child(3),
.proxy-card:nth-child(3),
.backend-card:nth-child(3) {
  animation-delay: 0.15s;
}

.domain-card:nth-child(4),
.proxy-card:nth-child(4),
.backend-card:nth-child(4) {
  animation-delay: 0.2s;
}

.domain-card:nth-child(5),
.proxy-card:nth-child(5),
.backend-card:nth-child(5) {
  animation-delay: 0.25s;
}

.domain-card:nth-child(6),
.proxy-card:nth-child(6),
.backend-card:nth-child(6) {
  animation-delay: 0.3s;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .topbar {
    padding: 20px;
  }

  .page-heading h1 {
    font-size: 1.875rem;
  }

  .domains-grid,
  .proxies-grid,
  .backends-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .topbar-actions {
    width: 100%;
  }

  .topbar-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .page-heading h1 {
    font-size: 1.625rem;
  }

  .domains-grid,
  .proxies-grid,
  .backends-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-actions {
    flex-direction: column-reverse;
  }

  .form-actions .btn {
    width: 100%;
  }

  .panel-card {
    padding: 24px;
  }
}