/* Vessel Trim Optimizer - UI Styles */
/* Dark maritime theme with cyan accents */

:root {
  --bg-primary: #0a0e14;
  --bg-secondary: #0d1219;
  --bg-tertiary: #141b24;
  --bg-card: #1a222d;
  --bg-hover: #232d3b;

  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;

  --accent-primary: #00d4ff;
  --accent-secondary: #0891b2;
  --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #0891b2 100%);

  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;

  --border-color: #21262d;
  --border-focus: #00d4ff;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  overflow: hidden;
}

/* App Container */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--accent-primary);
  font-weight: 600;
  font-size: 18px;
}

.logo svg {
  filter: drop-shadow(0 0 8px rgba(0, 212, 255, 0.5));
}

.status-bar {
  display: flex;
  gap: 24px;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}

.status-dot.connected {
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.load-condition-input {
  gap: 6px;
}
.load-condition-input label {
  white-space: nowrap;
}
.load-condition-input input {
  width: 80px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 13px;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  cursor: pointer;
}
.btn-sm:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* Main Content */
.main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Panels */
.panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-3d {
  flex: 1;
  border-right: 1px solid var(--border-color);
}

.panel-controls {
  width: 480px;
  background: var(--bg-secondary);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.panel-header h2 {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
}

.view-controls {
  display: flex;
  gap: 4px;
}

/* Canvas */
.canvas-container {
  position: relative;
  flex: 1;
  background: var(--bg-primary);
}

#hull-canvas {
  width: 100%;
  height: 100%;
}

.canvas-overlay {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 12px 16px;
  background: rgba(10, 14, 20, 0.85);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  backdrop-filter: blur(8px);
}

.info-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-size: 12px;
  font-family: var(--font-mono);
  padding: 4px 0;
}

.info-row span:first-child {
  color: var(--text-secondary);
}

.info-row span:last-child {
  color: var(--accent-primary);
}

/* Buttons */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent-gradient);
  color: var(--bg-primary);
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 20px rgba(0, 212, 255, 0.4);
}

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

.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--accent-primary);
}

.btn-large {
  width: 100%;
  padding: 14px 24px;
  font-size: 15px;
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-icon:hover {
  background: var(--bg-hover);
  color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.btn-group {
  display: flex;
  gap: 12px;
}

.btn-group .btn {
  flex: 1;
}

.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Tabs */
.tabs {
  display: flex;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
}

.tab {
  flex: 1;
  padding: 14px 16px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.tab:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.tab.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

.tab-content {
  flex: 1;
  overflow-y: auto;
}

.tab-pane {
  display: none;
  padding: 20px;
}

.tab-pane.active {
  display: block;
}

/* Forms */
.form-section {
  margin-bottom: 24px;
}

.form-section h3 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.form-section h4 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 12px;
  color: var(--text-secondary);
}

.form-group input,
.form-group select {
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  font-family: var(--font-mono);
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-section-collapsible {
  padding: 16px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

/* Mode Selector */
.mode-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.mode-option {
  cursor: pointer;
}

.mode-option input {
  display: none;
}

.mode-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px 12px;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 11px;
  text-align: center;
  transition: all 0.2s;
}

.mode-option input:checked + .mode-card {
  border-color: var(--accent-primary);
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent-primary);
}

.mode-card:hover {
  border-color: var(--accent-secondary);
}

/* Results */
.results-section {
  padding: 20px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
}

.results-section h3 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.results-grid.small {
  grid-template-columns: repeat(2, 1fr);
}

.result-card {
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.result-label {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.result-value {
  font-size: 20px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--accent-primary);
}

.result-unit {
  font-size: 12px;
  color: var(--text-secondary);
}

/* Stability Indicator */
.stability-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-weight: 500;
}

.stability-indicator.stable {
  background: rgba(34, 197, 94, 0.1);
  color: var(--success);
}

.stability-indicator.unstable {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
}

.stability-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
}

.stability-indicator.stable .stability-icon {
  background: var(--success);
}

.stability-indicator.unstable .stability-icon {
  background: var(--danger);
}

/* Trim Gauge */
.optimal-trim-display {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 20px;
}

.trim-gauge {
  flex: 1;
  padding: 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
}

.trim-indicator {
  height: 8px;
  background: var(--bg-card);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}

.trim-indicator::after {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 4px;
  height: 100%;
  background: var(--accent-primary);
  transform: translateX(-50%);
  transition: left 0.3s;
  box-shadow: 0 0 8px var(--accent-primary);
}

.trim-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.trim-value {
  font-size: 36px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-primary);
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

/* Simulation Summary */
.sim-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.summary-card {
  padding: 16px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  text-align: center;
}

.summary-label {
  display: block;
  font-size: 10px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-bottom: 8px;
}

.summary-value {
  font-size: 24px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-primary);
}

.summary-card.warning .summary-value {
  color: var(--warning);
}

.summary-card.danger .summary-value {
  color: var(--danger);
}

.summary-card.success .summary-value {
  color: var(--success);
}

.sim-error-message {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid var(--danger);
  color: var(--danger);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  font-size: 14px;
}

/* Charts */
.chart-container {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-top: 16px;
}

.chart-container h4 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* Фиксированная высота для графиков симуляции — не даём растягиваться по вертикали */
.sim-chart-box {
  display: block;
  overflow: hidden;
}

.sim-chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}

.sim-chart-header h4 {
  margin-bottom: 0;
  flex: 1;
}

.expand-chart-btn {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  cursor: pointer;
  transition:
    color 0.2s,
    border-color 0.2s,
    background 0.2s;
}

.expand-chart-btn:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: rgba(0, 212, 255, 0.08);
}

.sim-chart-wrap {
  height: 200px;
  min-height: 200px;
  max-height: 200px;
  position: relative;
  width: 100%;
}

.sim-chart-wrap canvas {
  display: block;
  max-height: 200px !important;
}

/* Модальное окно графика в полном размере */
.chart-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.chart-modal[hidden] {
  display: none;
}

.chart-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
}

.chart-modal-content {
  position: relative;
  width: 100%;
  max-width: 1200px;
  height: 85vh;
  max-height: 800px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chart-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.chart-modal-header h3 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.chart-modal-close {
  width: 36px;
  height: 36px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  line-height: 1;
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  cursor: pointer;
  transition:
    color 0.2s,
    background 0.2s;
}

.chart-modal-close:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.chart-modal-body {
  flex: 1;
  min-height: 0;
  padding: 20px;
}

.chart-modal-body canvas {
  width: 100% !important;
  height: 100% !important;
  max-height: 100%;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-hover);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-color);
}

/* Responsive */
@media (max-width: 768px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1200px) {
  .main-content {
    flex-direction: column;
  }

  .panel-3d {
    height: 40vh;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }

  .panel-controls {
    width: 100%;
    flex: 1;
  }
}