/* Main content area */
#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

#main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: flex 0.25s cubic-bezier(0.4, 0, 0.2, 1), height 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: flex, height;
  background: transparent;
}

#btn-toggle-sidebar {
  position: absolute;
  top: 10px;
  left: 12px;
  z-index: 50;
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text-subtle);
  border-radius: 8px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--glass-shadow);
  backdrop-filter: var(--backdrop-blur-sm);
  -webkit-backdrop-filter: var(--backdrop-blur-sm);
  border-top: 1px solid var(--glass-border-light);
  border-left: 1px solid var(--glass-border-light);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

#btn-toggle-sidebar:hover {
  background: var(--modal-secondary-hover);
  color: var(--text);
  border-color: var(--pane-close);
}

#main-content.split-view {
  flex-direction: row;
}

/* Hide main-content when in editing mode */
#main.editing-mode #main-content {
  flex: 0;
  height: 0;
  overflow: hidden;
  min-height: 0;
  pointer-events: none;
  visibility: hidden;
}

#welcome {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 40px 20px;
  gap: 0;
}

#main-content.split-view #welcome {
  display: none;
}

/* Hide main content when editor is visible */
#editor-container.visible ~ #swagger-container,
#editor-container.visible ~ #welcome {
  display: none !important;
}

.welcome-hero {
  text-align: center;
  margin-bottom: 48px;
}
.welcome-hero .hero-icon {
  font-size: 56px;
  line-height: 1;
  margin-bottom: 16px;
}
.welcome-hero h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.welcome-hero p {
  font-size: 15px;
  color: var(--text-secondary);
}

.welcome-cards {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 40px;
}
.welcome-card {
  background: var(--card-bg);
  backdrop-filter: var(--backdrop-blur-md);
  -webkit-backdrop-filter: var(--backdrop-blur-md);
  border-radius: 16px;
  padding: 24px 20px;
  width: 180px;
  text-align: center;
  box-shadow: var(--glass-shadow);
  border: 1px solid var(--border);
  border-top: 1px solid var(--glass-border-light);
  border-left: 1px solid var(--glass-border-light);
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), background 0.2s, box-shadow 0.2s;
}
.welcome-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}
.welcome-card .card-icon {
  font-size: 28px;
  margin-bottom: 10px;
}
.welcome-card h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 5px;
}
.welcome-card p {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

.welcome-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.welcome-cta .cta-label {
  font-size: 13px;
  color: var(--cta-label);
  display: flex;
  align-items: center;
  gap: 8px;
}
.welcome-cta .cta-label::before,
.welcome-cta .cta-label::after {
  content: '';
  display: block;
  width: 40px;
  height: 1px;
  background: var(--cta-divider);
}
.welcome-cta button {
  padding: 12px 28px;
  background: var(--accent);
  color: #ffffff;
  border: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.welcome-cta button:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(59, 130, 246, 0.4);
}

#swagger-container {
  display: flex;
  flex: 1;
  overflow: hidden;
  background: var(--bg);
  position: relative;
  min-height: 0;
}

/* Clear single view constraints */
#swagger-container #swagger-ui-main {
  display: none;
}

.pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100%;
}

.pane-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: var(--pane-header-bg);
  backdrop-filter: var(--backdrop-blur-md);
  -webkit-backdrop-filter: var(--backdrop-blur-md);
  border-bottom: 1px solid var(--border);
  z-index: 5;
}

#pane-left .pane-header {
  padding-left: 54px;
}

.pane-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--pane-title);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pane-close {
  background: none;
  border: none;
  color: var(--pane-close);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 0 4px;
  transition: color 0.15s;
}

.pane-close:hover {
  color: #ff6b6b;
}

.swagger-ui-mount {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.resizer {
  width: 4px;
  cursor: col-resize;
  background: transparent;
  transition: background 0.2s;
  z-index: 10;
}

.resizer:hover, .resizer.dragging {
  background: var(--accent);
}

/* View Mode Logic */
#main-content:not(.split-view) #pane-right,
#main-content:not(.split-view) #resizer {
  display: none !important;
}

#main-content:not(.split-view) .pane-header {
  display: none;
}

#main-content.split-view .pane-header {
  display: flex;
}

#main-content.split-view .pane.focused-pane .pane-header {
  box-shadow: inset 0 2px 0 var(--accent);
  background: var(--sidebar-item-active);
}

#swagger-container .swagger-ui .topbar {
  display: none;
}

#swagger-container .swagger-ui > div:first-child {
  margin-top: 0;
}