/* ============================================
   Smart Nursing - 护理评判系统样式
   Premium Dark Theme with Glassmorphism
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --bg-primary: #0a0b14;
  --bg-secondary: #12131f;
  --bg-card: rgba(18, 19, 31, 0.8);
  --bg-card-hover: rgba(25, 27, 45, 0.9);
  --bg-glass: rgba(255, 255, 255, 0.03);
  --bg-glass-border: rgba(255, 255, 255, 0.06);

  --text-primary: #e8eaf0;
  --text-secondary: #8b8fa8;
  --text-muted: #5a5e7a;

  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --accent-tertiary: #a78bfa;
  --accent-glow: rgba(99, 102, 241, 0.3);

  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.1);
  --info: #3b82f6;

  --gradient-primary: linear-gradient(135deg, #6366f1, #8b5cf6, #a78bfa);
  --gradient-dark: linear-gradient(180deg, #0a0b14 0%, #12131f 100%);
  --gradient-card: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(139,92,246,0.04));

  --border-radius: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;

  --shadow-sm: 0 2px 8px 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: 0 0 40px var(--accent-glow);

  --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Navbar ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 64px;
  background: rgba(10, 11, 20, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--bg-glass-border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-title {
  font-size: 1.15rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-badge {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 2px 8px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.5rem 1.25rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-link:hover { color: var(--text-primary); background: var(--bg-glass); }
.nav-link.active { color: var(--accent-primary); background: rgba(99,102,241,0.1); }

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}

/* ---------- Main Content ---------- */
.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.page { display: none; }
.page.active { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ---------- Hero Section ---------- */
.hero-section {
  text-align: center;
  padding: 3rem 0 2rem;
  position: relative;
}

.hero-glow {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(99,102,241,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-title {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
}

.stat-item {
  text-align: center;
}

.stat-icon { font-size: 1.5rem; margin-bottom: 0.25rem; }
.stat-value { font-size: 1rem; font-weight: 700; color: var(--text-primary); }
.stat-label { font-size: 0.75rem; color: var(--text-muted); }

/* ---------- Upload Section ---------- */
.upload-section {
  display: flex;
  justify-content: center;
  margin-bottom: 2rem;
}

.upload-card {
  width: 100%;
  max-width: 640px;
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--border-radius-xl);
  padding: 2rem;
  transition: var(--transition);
}

.upload-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  border: 2px dashed rgba(99,102,241,0.2);
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  transition: var(--transition);
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--accent-primary);
  background: rgba(99,102,241,0.04);
}

.upload-icon { margin-bottom: 1rem; opacity: 0.7; transition: var(--transition); }
.upload-zone:hover .upload-icon { opacity: 1; transform: scale(1.05); }

.upload-text { font-size: 1rem; color: var(--text-secondary); margin-bottom: 0.5rem; }
.upload-link { color: var(--accent-primary); font-weight: 600; cursor: pointer; }
.upload-hint { font-size: 0.8rem; color: var(--text-muted); }

/* Upload Progress */
.upload-progress { padding: 1.5rem 0; }

.file-info {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.file-icon { font-size: 1.5rem; }
.file-details { flex: 1; }
.file-name { display: block; font-weight: 600; font-size: 0.9rem; }
.file-size { font-size: 0.8rem; color: var(--text-muted); }

.btn-cancel {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 4px 8px;
  border-radius: 4px;
  transition: var(--transition);
}
.btn-cancel:hover { color: var(--error); background: var(--error-bg); }

/* Progress Bar */
.progress-bar {
  height: 6px;
  background: rgba(99,102,241,0.1);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-bar.large { height: 8px; border-radius: 4px; }

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  border-radius: inherit;
  transition: width 0.5s ease;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  width: 30px;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3));
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer { 0% { opacity: 0; } 50% { opacity: 1; } 100% { opacity: 0; } }

.progress-text { font-size: 0.8rem; color: var(--text-muted); }

/* Upload Complete */
.upload-complete {
  text-align: center;
  padding: 2rem;
}

.complete-icon { font-size: 2.5rem; margin-bottom: 0.5rem; }
.complete-text { font-size: 1rem; font-weight: 600; margin-bottom: 1.5rem; }

.procedure-select {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.procedure-select label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.procedure-select select {
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--bg-glass-border);
  border-radius: 8px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  cursor: pointer;
  outline: none;
}

.procedure-select select:focus { border-color: var(--accent-primary); }

/* Buttons */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-glow); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-glow { box-shadow: 0 0 20px var(--accent-glow); }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--bg-glass-border);
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover { background: rgba(255,255,255,0.06); border-color: var(--accent-primary); }

/* ---------- Pipeline Progress ---------- */
.eval-progress { margin-bottom: 2rem; }

.progress-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--border-radius-xl);
  padding: 2rem;
}

.progress-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-align: center;
}

.pipeline-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.pipeline-step {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: 12px;
  transition: var(--transition);
  opacity: 0.4;
}

.pipeline-step.active { opacity: 1; background: rgba(99,102,241,0.08); }
.pipeline-step.completed { opacity: 1; }

.step-indicator {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 2px solid var(--text-muted);
  transition: var(--transition);
}

.pipeline-step.active .step-indicator {
  border-color: var(--accent-primary);
  background: rgba(99,102,241,0.2);
  animation: pulse-step 2s infinite;
}

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

@keyframes pulse-step {
  0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { box-shadow: 0 0 0 8px transparent; }
}

.step-num {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.pipeline-step.active .step-num { color: var(--accent-primary); }
.pipeline-step.completed .step-num { color: var(--success); }

.step-name { font-size: 0.85rem; font-weight: 600; }
.step-desc { font-size: 0.7rem; color: var(--text-muted); }

.pipeline-connector {
  width: 30px;
  height: 2px;
  background: var(--text-muted);
  opacity: 0.2;
}

.overall-progress { margin-top: 1rem; }

.progress-info {
  display: flex;
  justify-content: space-between;
  margin-top: 0.5rem;
  font-size: 0.85rem;
}

#eval-progress-percent { font-weight: 700; color: var(--accent-primary); }
#eval-status-message { color: var(--text-secondary); }

/* ---------- Result Section ---------- */
.result-section { animation: fadeIn 0.5s ease; }

.result-header {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--border-radius-xl);
  margin-bottom: 1.5rem;
}

.score-ring {
  position: relative;
  width: 140px;
  height: 140px;
  flex-shrink: 0;
}

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

.score-ring-bg {
  fill: none;
  stroke: rgba(99,102,241,0.1);
  stroke-width: 8;
}

.score-ring-fill {
  fill: none;
  stroke: url(#scoreGrad);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 377;
  stroke-dashoffset: 377;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.score-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.score-value { font-size: 2rem; font-weight: 800; }
.score-max { font-size: 0.8rem; color: var(--text-muted); }

.result-summary { flex: 1; }
.result-title { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.5rem; }

.result-grade {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.grade-excellent { background: var(--success-bg); color: var(--success); }
.grade-good { background: rgba(59,130,246,0.1); color: var(--info); }
.grade-pass { background: var(--warning-bg); color: var(--warning); }
.grade-fail { background: var(--error-bg); color: var(--error); }

.result-text { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }

/* Step Scores Table */
.scores-section {
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--border-radius-xl);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--bg-glass-border);
}

.score-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0 0.5rem;
}

.score-table th {
  text-align: left;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.5rem 1rem;
}

.score-table td {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  background: var(--bg-glass);
  vertical-align: top;
}

.score-table tr td:first-child { border-radius: 8px 0 0 8px; }
.score-table tr td:last-child { border-radius: 0 8px 8px 0; }

.score-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-pass { background: var(--success-bg); color: var(--success); }
.badge-deduction { background: var(--warning-bg); color: var(--warning); }
.badge-fail { background: var(--error-bg); color: var(--error); }
.badge-unobservable { background: rgba(100,100,100,0.1); color: var(--text-muted); }

/* Errors & Suggestions */
.errors-section, .suggestions-section, .strengths-section {
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--border-radius-xl);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.error-card, .suggestion-card, .strength-card {
  padding: 1rem;
  background: var(--bg-glass);
  border-radius: 10px;
  margin-bottom: 0.75rem;
  border-left: 3px solid;
}

.error-card { border-left-color: var(--error); }
.suggestion-card { border-left-color: var(--accent-primary); }
.strength-card { border-left-color: var(--success); }

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.card-title { font-weight: 600; font-size: 0.9rem; }
.card-severity { font-size: 0.7rem; padding: 2px 6px; border-radius: 4px; font-weight: 600; }

.severity-critical { background: var(--error-bg); color: var(--error); }
.severity-major { background: var(--warning-bg); color: var(--warning); }
.severity-minor { background: rgba(59,130,246,0.1); color: var(--info); }

.card-body { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }
.card-timestamp { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.25rem; }
.card-priority { font-size: 0.7rem; padding: 2px 6px; border-radius: 4px; font-weight: 600; }

.priority-high { background: var(--error-bg); color: var(--error); }
.priority-medium { background: var(--warning-bg); color: var(--warning); }
.priority-low { background: rgba(59,130,246,0.1); color: var(--info); }

/* ---------- History Page ---------- */
.page-header {
  margin-bottom: 2rem;
}
.page-header h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.25rem; }
.page-header p { color: var(--text-secondary); font-size: 0.9rem; }

.history-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--border-radius);
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: var(--transition);
}

.history-item:hover { border-color: var(--accent-primary); transform: translateX(4px); }

.history-score {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  flex-shrink: 0;
}

.history-info { flex: 1; }
.history-type { font-weight: 600; font-size: 0.95rem; }
.history-date { font-size: 0.8rem; color: var(--text-muted); }
.history-status { font-size: 0.8rem; }

/* ---------- Knowledge Page ---------- */
.knowledge-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.knowledge-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  padding: 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--border-radius);
}

.stat-card-title { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 0.25rem; }
.stat-card-value { font-size: 1.5rem; font-weight: 700; }

.knowledge-files { margin-top: 1.5rem; }
.knowledge-files h3 { font-size: 1rem; font-weight: 600; margin-bottom: 1rem; }

.file-list-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: var(--bg-glass);
  border-radius: 8px;
  margin-bottom: 0.5rem;
  font-size: 0.85rem;
}

.file-list-icon { font-size: 1.2rem; }

.status-message {
  padding: 1rem;
  border-radius: 8px;
  margin-top: 1rem;
  font-size: 0.9rem;
}
.status-message.success { background: var(--success-bg); color: var(--success); }
.status-message.error { background: var(--error-bg); color: var(--error); }

/* ---------- Empty State ---------- */
.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}
.empty-icon { font-size: 3rem; margin-bottom: 0.75rem; opacity: 0.5; }

/* ---------- Utilities ---------- */
.hidden { display: none !important; }

/* ---------- Auth Overlay ---------- */
.auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
}
.auth-overlay.hidden { display: none !important; }

.auth-container {
  width: 100%;
  max-width: 400px;
  padding: 2.5rem;
  background: var(--bg-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: 16px;
  backdrop-filter: blur(20px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.auth-brand {
  text-align: center;
  margin-bottom: 2rem;
}
.auth-brand h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0.75rem 0 0.25rem;
}
.auth-brand p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin: 0;
}

.auth-form h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 1.5rem;
}

.auth-form .form-group {
  margin-bottom: 1rem;
}
.auth-form .form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
}
.auth-form .form-group input {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--bg-glass);
  border: 1px solid var(--bg-glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.9375rem;
  outline: none;
  transition: border-color 0.2s;
  box-sizing: border-box;
}
.auth-form .form-group input::placeholder {
  color: var(--text-muted);
}
.auth-form .form-group input:focus {
  border-color: var(--accent-primary);
}

.auth-error {
  padding: 0.5rem 0.75rem;
  margin-bottom: 1rem;
  border-radius: 8px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #f87171;
  font-size: 0.8125rem;
}

.btn-block {
  display: block;
  width: 100%;
}

.auth-switch {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin: 1.25rem 0 0;
}
.auth-switch a {
  color: var(--accent-primary);
  text-decoration: none;
  font-weight: 500;
}
.auth-switch a:hover {
  text-decoration: underline;
}

/* ---------- Nav User ---------- */
.nav-divider {
  color: var(--text-muted);
  margin: 0 0.5rem;
}
.nav-user {
  color: var(--text-secondary);
  font-size: 0.8125rem;
}
.nav-logout {
  color: var(--text-muted);
  font-size: 0.8125rem;
  text-decoration: none;
  margin-left: 0.75rem;
  transition: color 0.2s;
}
.nav-logout:hover {
  color: #f87171;
}

/* ---------- Hamburger Menu ---------- */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 110;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- Mobile Nav Panel ---------- */
.mobile-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 199;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.mobile-nav-overlay.open {
  display: block;
  opacity: 1;
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  width: 280px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--bg-glass-border);
  z-index: 200;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}
.mobile-nav.open {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--bg-glass-border);
}
.mobile-nav-title {
  font-size: 1.1rem;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.mobile-nav-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
}

.mobile-nav-body {
  flex: 1;
  padding: 1rem 0;
}
.mobile-nav-link {
  display: block;
  padding: 0.875rem 1.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: var(--transition);
}
.mobile-nav-link:hover { color: var(--text-primary); background: var(--bg-glass); }
.mobile-nav-link.active { color: var(--accent-primary); background: rgba(99,102,241,0.1); }

.mobile-nav-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--bg-glass-border);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  .navbar { padding: 0 1rem; }
  .nav-links { display: none; }
  .nav-status .status-text,
  .nav-status .nav-divider,
  .nav-status .nav-user,
  .nav-status .nav-logout { display: none; }
  .nav-hamburger { display: flex; }
  .main-content { padding: 1rem; }
  .hero-section { padding: 2rem 0 1.5rem; }
  .hero-title { font-size: 1.75rem; }
  .hero-subtitle { font-size: 0.95rem; }
  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
  .upload-card { padding: 1.25rem; }
  .upload-zone { padding: 2rem 1.25rem; }
  .pipeline-steps { flex-direction: column; }
  .pipeline-connector { width: 2px; height: 20px; }
  .pipeline-step { padding: 0.6rem 0.75rem; }
  .result-header { flex-direction: column; align-items: center; text-align: center; gap: 1.25rem; padding: 1.5rem; }
  .score-ring { width: 110px; height: 110px; }
  .score-value { font-size: 1.5rem; }
  .knowledge-stats { grid-template-columns: 1fr; }
  .knowledge-controls { flex-wrap: wrap; }
  .history-item { flex-wrap: wrap; gap: 0.75rem; }
}

@media (max-width: 640px) {
  .score-table thead { display: none; }
  .score-table tbody { display: block; }
  .score-table tr {
    display: block;
    background: var(--bg-glass);
    border-radius: 10px;
    margin-bottom: 0.75rem;
    padding: 0.75rem;
  }
  .score-table td {
    display: block;
    padding: 0.3rem 0;
    font-size: 0.85rem;
    background: none;
    border-radius: 0;
  }
  .score-table td::before {
    content: attr(data-label);
    font-weight: 600;
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 0.15rem;
  }
  .hero-stats { gap: 1rem; }
  .stat-item { min-width: 0; }
  .hero-title { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .auth-container {
    max-width: 100%;
    padding: 1.5rem 1.25rem;
    border-radius: 0;
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }
  .auth-brand { margin-bottom: 1.5rem; }
  .hero-title { font-size: 1.35rem; }
}