/* ============================================
   ClinIQ — Clinical Intelligence System
   Design System & Styles
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Base Colors */
  --bg-primary: #060a14;
  --bg-secondary: #0c1221;
  --bg-tertiary: #111827;
  --bg-card: rgba(17, 24, 39, 0.65);
  --bg-card-hover: rgba(30, 41, 59, 0.7);
  --bg-input: rgba(15, 23, 42, 0.8);
  --bg-input-focus: rgba(15, 23, 42, 0.95);

  /* Glass */
  --glass-bg: rgba(15, 23, 42, 0.45);
  --glass-border: rgba(56, 189, 248, 0.08);
  --glass-blur: 20px;

  /* Accent Colors */
  --accent-primary: #06b6d4;
  --accent-primary-light: #22d3ee;
  --accent-primary-glow: rgba(6, 182, 212, 0.25);
  --accent-secondary: #8b5cf6;
  --accent-secondary-glow: rgba(139, 92, 246, 0.2);

  /* Clinical Semantic Colors */
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --success-border: rgba(16, 185, 129, 0.3);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --warning-border: rgba(245, 158, 11, 0.3);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.1);
  --danger-border: rgba(239, 68, 68, 0.3);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.1);
  --info-border: rgba(59, 130, 246, 0.3);

  /* Text */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #22d3ee;

  /* Borders */
  --border-subtle: rgba(148, 163, 184, 0.08);
  --border-medium: rgba(148, 163, 184, 0.15);
  --border-accent: rgba(6, 182, 212, 0.3);

  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-glow-accent: 0 0 30px rgba(6, 182, 212, 0.15);
  --shadow-glow-success: 0 0 20px rgba(16, 185, 129, 0.2);
  --shadow-glow-warning: 0 0 20px rgba(245, 158, 11, 0.2);
  --shadow-glow-danger: 0 0 20px rgba(239, 68, 68, 0.2);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Animated background gradient */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 80% 60% at 10% 20%, rgba(6, 182, 212, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(139, 92, 246, 0.05) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(6, 182, 212, 0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.15);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.3);
}

/* --- Layout --- */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 1320px;
  margin: 0 auto;
  padding: var(--space-lg) var(--space-xl);
  min-height: 100vh;
}

/* --- Header --- */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-2xl);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.app-logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.app-logo svg,
.app-logo img {
  height: 48px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 0 10px rgba(14, 165, 233, 0.25));
}

.app-logo-text {
  display: flex;
  flex-direction: column;
}

.app-logo-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: linear-gradient(135deg, var(--accent-primary-light), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.app-logo-subtitle {
  font-size: 0.73rem;
  color: var(--text-muted);
  font-weight: 400;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.header-status {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
  animation: pulse-dot 2s ease-in-out infinite;
}

.status-dot.offline {
  background: var(--danger);
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.6);
  animation: none;
}

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

/* --- Main Grid --- */
.main-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

/* --- Glass Card --- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
  border-color: rgba(56, 189, 248, 0.12);
}

/* --- Section Titles --- */
.section-title {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.section-title .icon {
  font-size: 1.2rem;
}

.section-title .badge-count {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  background: var(--accent-primary-glow);
  color: var(--accent-primary-light);
  border: 1px solid rgba(6, 182, 212, 0.2);
}

/* --- Input Panel --- */
.input-panel {
  display: grid;
  gap: var(--space-lg);
}

.input-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
}

/* --- Mode Selector --- */
.mode-selector {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 3px;
  position: relative;
}

.mode-btn {
  font-family: var(--font-body);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  outline: none;
  position: relative;
  z-index: 1;
}

.mode-btn:hover:not(.active) {
  color: var(--text-secondary);
  background: rgba(148, 163, 184, 0.06);
}

.mode-btn-icon {
  font-size: 1.05rem;
}

.mode-btn-label {
  font-weight: 600;
  letter-spacing: 0.2px;
}

/* Standard active */
.mode-btn.active[data-mode="standard"] {
  background: rgba(6, 182, 212, 0.12);
  color: var(--accent-primary-light);
  border-color: rgba(6, 182, 212, 0.3);
  box-shadow: 0 0 16px rgba(6, 182, 212, 0.15);
}

/* Thinking active */
.mode-btn.active[data-mode="thinking"] {
  background: rgba(139, 92, 246, 0.12);
  color: #a78bfa;
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.15);
}

/* Deep Research active */
.mode-btn.active[data-mode="deep-research"] {
  background: rgba(245, 158, 11, 0.12);
  color: #fbbf24;
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow: 0 0 16px rgba(245, 158, 11, 0.15);
}

.mode-description {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding: 6px 4px 0;
  min-height: 1.4em;
  transition: all var(--transition-normal);
  line-height: 1.4;
}


.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input,
.form-select,
.form-textarea {
  font-family: var(--font-body);
  font-size: 0.93rem;
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  transition: all var(--transition-normal);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  background: var(--bg-input-focus);
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-primary-glow), var(--shadow-sm);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea {
  resize: vertical;
  min-height: 130px;
  line-height: 1.7;
}

.form-textarea.large {
  min-height: 180px;
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-select option {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Textarea with helper */
.textarea-wrapper {
  position: relative;
}

.textarea-hint {
  position: absolute;
  bottom: var(--space-sm);
  right: var(--space-md);
  font-size: 0.7rem;
  color: var(--text-muted);
  pointer-events: none;
}

/* --- File Upload Zone --- */
.upload-dropzone {
  border: 2px dashed var(--border-medium);
  border-radius: var(--radius-md);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  background: rgba(15, 23, 42, 0.3);
  position: relative;
}

.upload-dropzone:hover {
  border-color: var(--accent-primary);
  background: rgba(6, 182, 212, 0.04);
  box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

.upload-dropzone.dragover {
  border-color: var(--accent-primary-light);
  background: rgba(6, 182, 212, 0.08);
  box-shadow: 0 0 24px rgba(6, 182, 212, 0.2);
  transform: scale(1.01);
}

.upload-dropzone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  pointer-events: none;
}

.upload-icon {
  font-size: 2rem;
  opacity: 0.6;
  transition: opacity var(--transition-normal);
}

.upload-dropzone:hover .upload-icon {
  opacity: 1;
}

.upload-text {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.upload-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Preview Gallery */
.upload-preview-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.upload-preview-gallery:empty {
  display: none;
}

.upload-preview-item {
  position: relative;
  width: 88px;
  height: 88px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: var(--bg-tertiary);
  animation: card-enter 0.3s ease-out;
  transition: border-color var(--transition-fast);
}

.upload-preview-item:hover {
  border-color: var(--accent-primary);
}

.upload-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.upload-preview-item .pdf-thumb {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(239, 68, 68, 0.05));
}

.upload-preview-item .pdf-thumb-icon {
  font-size: 1.6rem;
}

.upload-preview-item .pdf-thumb-label {
  font-size: 0.55rem;
  font-weight: 700;
  color: var(--danger);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.upload-preview-item .pdf-thumb-name {
  font-size: 0.5rem;
  color: var(--text-muted);
  max-width: 72px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: center;
}

.upload-preview-remove {
  position: absolute;
  top: 3px;
  right: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
  line-height: 1;
}

.upload-preview-item:hover .upload-preview-remove {
  opacity: 1;
}

.upload-preview-remove:hover {
  background: var(--danger);
}

.upload-preview-type {
  position: absolute;
  bottom: 3px;
  left: 3px;
  font-size: 0.5rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 1px 5px;
  border-radius: 3px;
  background: rgba(0, 0, 0, 0.65);
  color: var(--text-primary);
  letter-spacing: 0.3px;
}

/* Upload Summary */
.upload-summary {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(6, 182, 212, 0.06);
  border: 1px solid rgba(6, 182, 212, 0.12);
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: var(--space-sm);
}

/* --- Buttons --- */
.btn {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  transition: all var(--transition-normal);
  outline: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #0891b2);
  color: #fff;
  box-shadow: 0 2px 12px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover:not(:disabled) {
  box-shadow: 0 4px 24px rgba(6, 182, 212, 0.45);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-medium);
}

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

.btn-sm {
  font-size: 0.78rem;
  padding: 5px 14px;
}

.btn-group {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* Generate button special */
.btn-generate {
  width: 100%;
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.3px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-primary), #0e7490, var(--accent-secondary));
  background-size: 200% 200%;
  color: #fff;
  border: none;
  box-shadow: 0 4px 20px rgba(6, 182, 212, 0.3);
  transition: all var(--transition-normal);
}

.btn-generate:hover:not(:disabled) {
  background-position: 100% 100%;
  box-shadow: 0 6px 30px rgba(6, 182, 212, 0.45);
  transform: translateY(-2px);
}

.btn-generate:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-generate.loading {
  animation: gradient-shift 2s ease infinite;
}

@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Spinner inside button */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* --- Pipeline Visualization --- */
.pipeline-section {
  margin: var(--space-xl) 0;
}

.pipeline-steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 0;
  padding: var(--space-lg) var(--space-xl);
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.pipeline-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-slow);
  position: relative;
}

.pipeline-step-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  background: rgba(148, 163, 184, 0.06);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-slow);
}

.pipeline-step-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
  transition: color var(--transition-normal);
}

.pipeline-step-status {
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 2px 10px;
  border-radius: var(--radius-full);
  background: rgba(148, 163, 184, 0.08);
  color: var(--text-muted);
  border: 1px solid transparent;
  transition: all var(--transition-normal);
}

.pipeline-connector {
  width: 48px;
  height: 2px;
  background: var(--border-subtle);
  position: relative;
  transition: background var(--transition-slow);
}

.pipeline-connector::after {
  content: '';
  position: absolute;
  right: -3px;
  top: -3px;
  width: 0;
  height: 0;
  border-left: 6px solid var(--border-subtle);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: border-color var(--transition-slow);
}

/* Pipeline States */
.pipeline-step.active .pipeline-step-icon {
  background: var(--accent-primary-glow);
  border-color: var(--accent-primary);
  box-shadow: 0 0 24px rgba(6, 182, 212, 0.3);
  animation: step-pulse 2s ease-in-out infinite;
}

.pipeline-step.active .pipeline-step-label {
  color: var(--accent-primary-light);
}

.pipeline-step.active .pipeline-step-status {
  background: var(--accent-primary-glow);
  color: var(--accent-primary-light);
  border-color: rgba(6, 182, 212, 0.3);
}

.pipeline-step.completed .pipeline-step-icon {
  background: var(--success-bg);
  border-color: var(--success);
  box-shadow: var(--shadow-glow-success);
  animation: none;
}

.pipeline-step.completed .pipeline-step-label {
  color: var(--success);
}

.pipeline-step.completed .pipeline-step-status {
  background: var(--success-bg);
  color: var(--success);
  border-color: var(--success-border);
}

.pipeline-connector.active {
  background: linear-gradient(90deg, var(--success), var(--accent-primary));
}

.pipeline-connector.active::after {
  border-left-color: var(--accent-primary);
}

.pipeline-connector.completed {
  background: var(--success);
}

.pipeline-connector.completed::after {
  border-left-color: var(--success);
}

@keyframes step-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(6, 182, 212, 0.2); }
  50% { box-shadow: 0 0 35px rgba(6, 182, 212, 0.4); }
}

/* --- Results Section --- */
.results-section {
  display: grid;
  gap: var(--space-xl);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-slow);
}

.results-section.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Result Card */
.result-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-slow);
  animation: card-enter 0.5s ease-out backwards;
}

.result-card:nth-child(1) { animation-delay: 0.1s; }
.result-card:nth-child(2) { animation-delay: 0.3s; }
.result-card:nth-child(3) { animation-delay: 0.5s; }

@keyframes card-enter {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.result-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-xl);
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  user-select: none;
  transition: background var(--transition-fast);
}

.result-card-header:hover {
  background: rgba(148, 163, 184, 0.04);
}

.result-card-header-left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.result-card-step {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.result-card-step.step-1 {
  background: var(--info-bg);
  color: var(--info);
  border: 1px solid var(--info-border);
}

.result-card-step.step-2 {
  background: var(--accent-secondary-glow);
  color: var(--accent-secondary);
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.result-card-step.step-3 {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.result-card-title {
  font-size: 1rem;
  font-weight: 700;
}

.result-card-chevron {
  font-size: 1.2rem;
  color: var(--text-muted);
  transition: transform var(--transition-normal);
}

.result-card.collapsed .result-card-chevron {
  transform: rotate(-90deg);
}

.result-card-body {
  padding: var(--space-xl);
  display: grid;
  gap: var(--space-lg);
  max-height: 2000px;
  overflow: hidden;
  transition: max-height var(--transition-slow), padding var(--transition-slow), opacity var(--transition-normal);
}

.result-card.collapsed .result-card-body {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  opacity: 0;
}

/* --- Clinical Data Fields --- */
.data-field {
  display: grid;
  gap: var(--space-xs);
}

.data-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
}

.data-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.data-value.mono {
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
}

.data-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.82rem;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: rgba(148, 163, 184, 0.08);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.data-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 4px 14px;
  border-radius: var(--radius-full);
}

.badge-routine {
  background: var(--info-bg);
  color: var(--info);
  border: 1px solid var(--info-border);
}

.badge-urgent {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid var(--warning-border);
  animation: badge-glow-warning 2s ease-in-out infinite;
}

.badge-emergent {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
  animation: badge-glow-danger 1.5s ease-in-out infinite;
}

.badge-high {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

.badge-medium {
  background: var(--warning-bg);
  color: var(--warning);
  border: 1px solid var(--warning-border);
}

.badge-low {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-border);
}

@keyframes badge-glow-warning {
  0%, 100% { box-shadow: none; }
  50% { box-shadow: var(--shadow-glow-warning); }
}

@keyframes badge-glow-danger {
  0%, 100% { box-shadow: none; }
  50% { box-shadow: var(--shadow-glow-danger); }
}

/* --- Tables --- */
.clinical-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.88rem;
}

.clinical-table thead th {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--border-medium);
  background: rgba(148, 163, 184, 0.03);
}

.clinical-table tbody td {
  padding: var(--space-sm) var(--space-md);
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}

.clinical-table tbody tr {
  transition: background var(--transition-fast);
}

.clinical-table tbody tr:hover {
  background: rgba(148, 163, 184, 0.04);
}

.clinical-table tbody tr:last-child td {
  border-bottom: none;
}

/* --- Primary Diagnosis Highlight --- */
.primary-dx-card {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(139, 92, 246, 0.06));
  border: 1px solid rgba(6, 182, 212, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-md);
  align-items: start;
}

.primary-dx-info {
  display: grid;
  gap: var(--space-sm);
}

.primary-dx-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent-primary-light);
}

.primary-dx-code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-secondary);
  background: var(--accent-secondary-glow);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  display: inline-block;
  width: fit-content;
}

.primary-dx-confidence {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.confidence-ring {
  width: 64px;
  height: 64px;
  position: relative;
}

.confidence-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.confidence-ring .ring-bg {
  fill: none;
  stroke: rgba(148, 163, 184, 0.1);
  stroke-width: 5;
}

.confidence-ring .ring-fill {
  fill: none;
  stroke: var(--accent-primary);
  stroke-width: 5;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s ease-out;
}

.confidence-ring .ring-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-primary-light);
}

.confidence-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

/* --- Clinical Reasoning --- */
.reasoning-block {
  background: rgba(15, 23, 42, 0.5);
  border-left: 3px solid var(--accent-primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-md) var(--space-lg);
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* --- Warning Cards --- */
.warning-list {
  display: grid;
  gap: var(--space-sm);
}

.warning-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  color: var(--text-primary);
}

.warning-item .warning-icon {
  color: var(--danger);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Intervention List --- */
.intervention-list {
  display: grid;
  gap: var(--space-sm);
}

.intervention-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: rgba(16, 185, 129, 0.05);
  border: 1px solid rgba(16, 185, 129, 0.15);
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  color: var(--text-primary);
}

.intervention-item .check-icon {
  color: var(--success);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --- Follow-up Card --- */
.followup-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.06));
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-md);
}

.followup-icon {
  font-size: 1.5rem;
}

.followup-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* --- Streaming Thinking Card --- */
.streaming-thinking-card {
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin: var(--space-lg) auto 0;
  max-width: 800px;
  animation: card-enter 0.4s ease-out;
  transition: all var(--transition-normal);
}

.streaming-thinking-card.thinking-mode {
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 0 24px rgba(139, 92, 246, 0.1);
}

.streaming-thinking-card.deep-research-mode {
  border-color: rgba(245, 158, 11, 0.3);
  box-shadow: 0 0 24px rgba(245, 158, 11, 0.1);
}

.streaming-thinking-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-xl);
  border-bottom: 1px solid var(--border-subtle);
  font-weight: 700;
  font-size: 0.95rem;
}

.streaming-thinking-card.thinking-mode .streaming-thinking-header {
  color: #a78bfa;
  background: rgba(139, 92, 246, 0.04);
}

.streaming-thinking-card.deep-research-mode .streaming-thinking-header {
  color: #fbbf24;
  background: rgba(245, 158, 11, 0.04);
}

.streaming-thinking-body {
  padding: var(--space-xl);
  max-height: 400px;
  overflow-y: auto;
  position: relative;
}

.streaming-thinking-text {
  font-family: var(--font-body);
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--text-secondary);
  white-space: pre-wrap;
  display: inline;
}

/* Flashing Cursor */
.streaming-cursor {
  display: inline-block;
  width: 8px;
  height: 15px;
  background-color: var(--accent-primary-light);
  margin-left: 4px;
  vertical-align: middle;
  animation: cursor-blink 1s step-end infinite;
}

.streaming-thinking-card.thinking-mode .streaming-cursor {
  background-color: #a78bfa;
}

.streaming-thinking-card.deep-research-mode .streaming-cursor {
  background-color: #fbbf24;
}

@keyframes cursor-blink {
  from, to { background-color: transparent; }
  50% { background-color: currentColor; }
}

/* --- Export Bar --- */
.export-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* --- Error State --- */
.error-banner {
  display: none;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  border-radius: var(--radius-md);
  margin-top: var(--space-lg);
  animation: card-enter 0.3s ease-out;
}

.error-banner.visible {
  display: flex;
}

.error-banner .error-icon {
  color: var(--danger);
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.error-banner .error-content {
  flex: 1;
}

.error-banner .error-title {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--danger);
  margin-bottom: 4px;
}

.error-banner .error-message {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- Empty State --- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
  gap: var(--space-md);
}

.empty-state-icon {
  font-size: 3rem;
  opacity: 0.3;
}

.empty-state-text {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 380px;
}

.empty-state-hint {
  font-size: 0.82rem;
  color: var(--text-muted);
  opacity: 0.6;
}

/* --- Processing Overlay --- */
.processing-text {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.processing-text .dots::after {
  content: '';
  animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
  0% { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .app-container {
    padding: var(--space-md);
  }

  .app-header {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .pipeline-steps {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
    padding: var(--space-md);
  }

  .pipeline-connector {
    width: 2px;
    height: 24px;
    justify-self: center;
  }

  .pipeline-connector::after {
    right: -3px;
    top: auto;
    bottom: -3px;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 6px solid var(--border-subtle);
    border-bottom: none;
  }

  .pipeline-connector.active::after,
  .pipeline-connector.completed::after {
    border-top-color: inherit;
  }

  .primary-dx-card {
    grid-template-columns: 1fr;
  }

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

  .clinical-table {
    font-size: 0.8rem;
  }

  .clinical-table thead th,
  .clinical-table tbody td {
    padding: var(--space-xs) var(--space-sm);
  }
}

/* --- Print Styles --- */
@media print {
  body {
    background: #fff;
    color: #111;
  }

  body::before { display: none; }

  .app-header,
  .input-panel,
  .pipeline-section,
  .json-viewer-section,
  .export-bar,
  .btn-generate,
  .error-banner {
    display: none !important;
  }

  .glass-card,
  .result-card {
    background: #fff !important;
    backdrop-filter: none !important;
    border: 1px solid #ddd !important;
    box-shadow: none !important;
    break-inside: avoid;
  }

  .result-card.collapsed .result-card-body {
    max-height: none;
    padding: 16px;
    opacity: 1;
  }

  .badge, .data-chip {
    border: 1px solid #999 !important;
  }

  .results-section {
    opacity: 1 !important;
    transform: none !important;
  }

  .print-header {
    display: block !important;
    text-align: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid #111;
  }

  .print-header h1 {
    font-size: 1.4rem;
    margin-bottom: 4px;
  }

  .print-header p {
    font-size: 0.85rem;
    color: #666;
  }
}

.print-header {
  display: none;
}