/* ═══════════════════════════════════════════════════════════════
   MediMax — Premium Dark Medical UI
   Design: Glassmorphism + Deep Navy + Cyan Accent
   ═══════════════════════════════════════════════════════════════ */

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

:root {
  /* Color System */
  --bg-deep:      #050a14;
  --bg-base:      #080f1e;
  --bg-surface:   #0d1829;
  --bg-raised:    #111e33;
  --bg-elevated:  #162440;

  --cyan-900:     #003344;
  --cyan-700:     #006b8a;
  --cyan-500:     #00b4d8;
  --cyan-400:     #22d3ee;
  --cyan-300:     #67e8f9;
  --cyan-100:     #cffafe;

  --green-500:    #22c55e;
  --green-400:    #4ade80;
  --yellow-500:   #eab308;
  --orange-500:   #f97316;
  --red-500:      #ef4444;

  --text-primary:   #e2eaf4;
  --text-secondary: #8ba0bb;
  --text-muted:     #4a6280;
  --text-disabled:  #2d3f55;

  --border:       rgba(0, 180, 216, 0.12);
  --border-hover: rgba(0, 180, 216, 0.28);
  --border-glow:  rgba(0, 180, 216, 0.5);

  /* Glass */
  --glass-bg:     rgba(13, 24, 41, 0.7);
  --glass-blur:   16px;

  /* Spacing */
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-8: 32px; --space-10: 40px;
  --space-12: 48px; --space-16: 64px;

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

  /* Radius */
  --r-sm: 8px; --r-md: 12px; --r-lg: 16px; --r-xl: 24px; --r-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 32px rgba(0,180,216,0.15);
  --shadow-glow-strong: 0 0 48px rgba(0,180,216,0.3);

  /* Transitions */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Ambient Orbs ──────────────────────────────────────────────── */
.ambient {
  position: fixed; inset: 0; pointer-events: none;
  z-index: 0; overflow: hidden;
}
.orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: 0.25;
  animation: orb-drift 20s ease-in-out infinite;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #006b8a, transparent);
  top: -200px; left: -100px;
  animation-delay: 0s;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #00b4d8, transparent);
  bottom: -150px; right: -100px;
  animation-delay: -7s;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #0ea5e9, transparent);
  top: 40%; left: 50%;
  animation-delay: -14s;
}
@keyframes orb-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ── Header ───────────────────────────────────────────────────── */
.header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(5, 10, 20, 0.85);
  backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1100px; margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex; align-items: center; gap: var(--space-6);
}
.logo { display: flex; align-items: center; gap: var(--space-3); flex-shrink: 0; }
.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--cyan-500), var(--cyan-700));
  border-radius: var(--r-sm);
  display: flex; align-items: center; justify-content: center;
  color: white; padding: 6px;
  box-shadow: 0 0 16px rgba(0,180,216,0.4);
}
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-name { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); }
.logo-tagline { font-size: 0.65rem; color: var(--text-muted); margin-top: 2px; letter-spacing: 0.05em; }

.header-nav {
  display: flex; gap: var(--space-2);
  flex: 1; justify-content: center;
}
.nav-btn {
  background: none; border: 1px solid transparent;
  color: var(--text-secondary); font-family: var(--font-sans);
  font-size: 0.875rem; font-weight: 500;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--r-full); cursor: pointer;
  transition: var(--transition);
}
.nav-btn:hover {
  color: var(--text-primary); border-color: var(--border);
  background: var(--bg-surface);
}
.nav-btn.active {
  color: var(--cyan-400); border-color: var(--border-hover);
  background: rgba(0, 180, 216, 0.08);
}

.header-status { display: flex; align-items: center; gap: var(--space-2); flex-shrink: 0; }
.status-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--text-muted); animation: pulse-dot 2s infinite;
  transition: background var(--transition);
}
.status-dot.online { background: var(--green-500); }
.status-dot.error  { background: var(--red-500); animation: none; }
.status-text { font-size: 0.75rem; color: var(--text-muted); }
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ── Main Layout ──────────────────────────────────────────────── */
.main {
  position: relative; z-index: 1;
  max-width: 1100px; margin: 0 auto;
  padding: var(--space-10) var(--space-6) var(--space-16);
}

/* ── Panels ───────────────────────────────────────────────────── */
.panel { display: none; }
.panel.active { display: block; animation: panel-in 300ms ease; }
@keyframes panel-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

/* ── Hero ─────────────────────────────────────────────────────── */
.hero { text-align: center; margin-bottom: var(--space-10); }
.hero-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700; line-height: 1.2;
  color: var(--text-primary); margin-bottom: var(--space-4);
}
.gradient-text {
  background: linear-gradient(135deg, var(--cyan-400), var(--cyan-300));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1rem; color: var(--text-secondary);
  max-width: 560px; margin: 0 auto; line-height: 1.6;
}

/* ── Query Card ───────────────────────────────────────────────── */
.query-card {
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  border-color: var(--border-hover);
}
.query-top { display: flex; gap: var(--space-4); align-items: flex-start; }
.query-input-wrap {
  flex: 1; display: flex; align-items: flex-start;
  gap: var(--space-3); background: var(--bg-surface);
  border: 1px solid var(--border); border-radius: var(--r-md);
  padding: var(--space-3) var(--space-4);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.query-input-wrap:focus-within {
  border-color: var(--cyan-500);
  box-shadow: 0 0 0 3px rgba(0,180,216,0.1), var(--shadow-glow);
}
.query-icon { color: var(--text-muted); flex-shrink: 0; width: 20px; height: 20px; margin-top: 2px; }
.query-input {
  flex: 1; background: none; border: none; outline: none;
  color: var(--text-primary); font-family: var(--font-sans);
  font-size: 1rem; resize: none; line-height: 1.6;
  min-height: 52px;
}
.query-input::placeholder { color: var(--text-muted); }

.query-actions { display: flex; flex-direction: column; gap: var(--space-2); }
.btn-primary {
  display: flex; align-items: center; gap: var(--space-2);
  background: linear-gradient(135deg, var(--cyan-500), var(--cyan-700));
  color: white; border: none; border-radius: var(--r-md);
  padding: var(--space-3) var(--space-5); font-family: var(--font-sans);
  font-size: 0.9rem; font-weight: 600; cursor: pointer; white-space: nowrap;
  transition: var(--transition); position: relative; overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,180,216,0.3);
}
.btn-primary::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover { box-shadow: 0 4px 24px rgba(0,180,216,0.5); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-icon { width: 16px; height: 16px; }

.btn-secondary {
  background: var(--bg-surface); border: 1px solid var(--border);
  color: var(--text-secondary); font-family: var(--font-sans);
  font-size: 0.85rem; font-weight: 500; padding: var(--space-2) var(--space-4);
  border-radius: var(--r-md); cursor: pointer; transition: var(--transition);
}
.btn-secondary:hover { border-color: var(--border-hover); color: var(--text-primary); }
.btn-secondary.btn-sm { padding: var(--space-1) var(--space-3); font-size: 0.8rem; }

.btn-icon-only {
  background: var(--bg-surface); border: 1px solid var(--border);
  color: var(--text-secondary); width: 36px; height: 36px;
  border-radius: var(--r-md); cursor: pointer; transition: var(--transition);
  display: flex; align-items: center; justify-content: center;
}
.btn-icon-only svg { width: 16px; height: 16px; }
.btn-icon-only:hover { border-color: var(--cyan-500); color: var(--cyan-400); }

/* ── Filters ──────────────────────────────────────────────────── */
.filters-section { margin-top: var(--space-4); }
.filters-toggle {
  list-style: none; display: flex; align-items: center; gap: var(--space-2);
  color: var(--text-muted); font-size: 0.85rem; cursor: pointer;
  padding: var(--space-2) 0;
  transition: color var(--transition);
}
.filters-toggle:hover { color: var(--text-secondary); }
.filters-toggle svg { width: 14px; height: 14px; }
.filters-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4); margin-top: var(--space-4);
}
.filter-group { display: flex; flex-direction: column; gap: var(--space-2); }
.filter-group label { font-size: 0.78rem; color: var(--text-secondary); font-weight: 500; }
.filter-group select, .filter-group input {
  background: var(--bg-surface); border: 1px solid var(--border);
  color: var(--text-primary); font-family: var(--font-sans);
  font-size: 0.875rem; padding: var(--space-2) var(--space-3);
  border-radius: var(--r-sm); outline: none; transition: var(--transition);
}
.filter-group select { cursor: pointer; }
.filter-group select:focus, .filter-group input:focus {
  border-color: var(--cyan-500); box-shadow: 0 0 0 2px rgba(0,180,216,0.1);
}

/* ── Loading State ─────────────────────────────────────────────── */
.loading-state {
  display: flex; align-items: center; gap: var(--space-5);
  padding: var(--space-8); justify-content: center;
  margin-bottom: var(--space-6);
}
.pulse-ring {
  width: 48px; height: 48px; border-radius: 50%;
  border: 3px solid var(--border);
  border-top-color: var(--cyan-400);
  animation: spin 1s linear infinite; flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-text { display: flex; flex-direction: column; gap: 4px; }
.loading-main { font-size: 1rem; color: var(--text-primary); font-weight: 500; }
.loading-sub { font-size: 0.85rem; color: var(--text-muted); }

/* ── Answer Card ─────────────────────────────────────────────── */
.answer-card {
  padding: var(--space-6); margin-bottom: var(--space-6);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}
.answer-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  gap: var(--space-4); margin-bottom: var(--space-5);
  padding-bottom: var(--space-4); border-bottom: 1px solid var(--border);
}
.answer-meta { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }
.confidence-badge {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-1) var(--space-3); border-radius: var(--r-full);
  font-size: 0.8rem; font-weight: 600; border: 1px solid;
}
.confidence-badge.high  { color: var(--green-400); border-color: rgba(74,222,128,0.3); background: rgba(34,197,94,0.08); }
.confidence-badge.medium{ color: var(--yellow-500); border-color: rgba(234,179,8,0.3);  background: rgba(234,179,8,0.08); }
.confidence-badge.low   { color: var(--red-500);   border-color: rgba(239,68,68,0.3);   background: rgba(239,68,68,0.08); }
.conf-dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

.meta-chips { display: flex; gap: var(--space-2); flex-wrap: wrap; }
.chip {
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--r-full); padding: 2px 10px;
  font-size: 0.72rem; color: var(--text-muted); font-family: var(--font-mono);
}

.answer-body {
  color: var(--text-primary); line-height: 1.75; font-size: 0.95rem;
  white-space: pre-wrap; word-break: break-word;
}
.answer-body strong { color: var(--cyan-300); }

/* Sources */
.sources-section { margin-top: var(--space-5); padding-top: var(--space-4); border-top: 1px solid var(--border); }
.sources-title {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: 0.85rem; font-weight: 600; color: var(--text-secondary);
  margin-bottom: var(--space-3);
}
.sources-title svg { width: 14px; height: 14px; }
.sources-list { display: flex; flex-direction: column; gap: var(--space-2); }
.source-item {
  display: flex; align-items: center; gap: var(--space-3);
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--r-sm); padding: var(--space-3) var(--space-4);
}
.source-badge {
  width: 20px; height: 20px; border-radius: 4px;
  background: rgba(0,180,216,0.15); border: 1px solid var(--border-hover);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; font-weight: 700; color: var(--cyan-400);
  flex-shrink: 0;
}
.source-info { flex: 1; min-width: 0; }
.source-name { font-size: 0.85rem; font-weight: 500; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.source-meta { font-size: 0.72rem; color: var(--text-muted); font-family: var(--font-mono); margin-top: 2px; }
.source-domain {
  font-size: 0.7rem; padding: 2px 8px; border-radius: var(--r-full);
  background: rgba(0,180,216,0.1); color: var(--cyan-400); border: 1px solid var(--border-hover);
  flex-shrink: 0;
}

/* ── Example Queries ───────────────────────────────────────────── */
.examples-section { margin-top: var(--space-8); }
.examples-title { font-size: 0.85rem; color: var(--text-muted); font-weight: 500; margin-bottom: var(--space-4); text-align: center; }
.examples-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
}
.example-card {
  background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: var(--space-5); text-align: left; cursor: pointer;
  transition: var(--transition); display: flex; flex-direction: column; gap: var(--space-3);
}
.example-card:hover {
  border-color: var(--border-hover); background: var(--bg-raised);
  transform: translateY(-2px); box-shadow: var(--shadow-md);
}
.example-icon { font-size: 1.4rem; }
.example-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; }

/* ── Ingest Panel ──────────────────────────────────────────────── */
.panel-header { margin-bottom: var(--space-8); }
.panel-title { font-size: 1.6rem; font-weight: 700; margin-bottom: var(--space-2); }
.panel-sub { color: var(--text-secondary); font-size: 0.9rem; }

.upload-zone {
  padding: var(--space-10) var(--space-6); text-align: center;
  border-style: dashed; border-color: var(--border-hover);
  cursor: pointer; margin-bottom: var(--space-6);
  transition: var(--transition);
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--cyan-500); background: rgba(0,180,216,0.04);
  box-shadow: var(--shadow-glow);
}
.upload-icon {
  width: 64px; height: 64px; margin: 0 auto var(--space-4);
  color: var(--text-muted); background: var(--bg-surface);
  border-radius: var(--r-lg); padding: 14px; border: 1px solid var(--border);
}
.upload-title { font-size: 1.05rem; font-weight: 600; margin-bottom: var(--space-2); }
.upload-sub { font-size: 0.85rem; color: var(--text-muted); margin-bottom: var(--space-5); }
.file-input-hidden { display: none; }

.upload-progress { margin-bottom: var(--space-4); }
.progress-bar-wrap {
  background: var(--bg-surface); border-radius: var(--r-full);
  height: 6px; overflow: hidden; margin-bottom: var(--space-2);
}
.progress-bar {
  height: 100%; width: 0%; border-radius: var(--r-full);
  background: linear-gradient(90deg, var(--cyan-700), var(--cyan-400));
  transition: width 300ms ease;
}
.progress-text { font-size: 0.85rem; color: var(--text-muted); text-align: center; }

.upload-results { margin-bottom: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); }
.result-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface); border-radius: var(--r-md);
  border: 1px solid var(--border);
}
.result-icon { font-size: 1rem; flex-shrink: 0; }
.result-info { flex: 1; min-width: 0; }
.result-name { font-size: 0.875rem; font-weight: 500; }
.result-detail { font-size: 0.75rem; color: var(--text-muted); font-family: var(--font-mono); margin-top: 2px; }
.result-item.success { border-color: rgba(34,197,94,0.2); }
.result-item.error   { border-color: rgba(239,68,68,0.2); }

.sources-panel { padding: var(--space-5); }
.sources-panel-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-4);
}
.sources-panel-header h3 { font-size: 0.95rem; font-weight: 600; }
.sources-panel-body { display: flex; flex-direction: column; gap: var(--space-2); }
.source-row {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface); border-radius: var(--r-sm);
  border: 1px solid var(--border);
}
.source-row-name { flex: 1; font-size: 0.875rem; font-family: var(--font-mono); color: var(--text-secondary); }
.source-row-del {
  background: none; border: 1px solid rgba(239,68,68,0.2);
  color: var(--red-500); padding: 2px 8px; border-radius: var(--r-sm);
  font-size: 0.75rem; cursor: pointer; transition: var(--transition);
}
.source-row-del:hover { background: rgba(239,68,68,0.08); }
.empty-state { text-align: center; padding: var(--space-8); color: var(--text-muted); font-size: 0.875rem; }

/* ── Stats Panel ─────────────────────────────────────────────── */
.stats-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4); margin-bottom: var(--space-6);
}
.stat-card {
  padding: var(--space-6); text-align: center;
  transition: var(--transition);
}
.stat-card:hover { box-shadow: var(--shadow-md), var(--shadow-glow); }
.stat-icon { font-size: 1.8rem; margin-bottom: var(--space-3); }
.stat-value {
  font-size: 1.5rem; font-weight: 700; color: var(--cyan-400);
  font-family: var(--font-mono); margin-bottom: var(--space-1);
}
.stat-value-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  position: relative;
}
.sync-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.7rem;
  color: var(--cyan-400);
  background: rgba(0, 180, 216, 0.1);
  padding: 4px 10px;
  border-radius: var(--r-full);
  border: 1px solid var(--border-hover);
  animation: fade-in 300ms ease;
}
.sync-spinner {
  width: 10px;
  height: 10px;
  border: 2px solid var(--border);
  border-top-color: var(--cyan-400);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); }

.config-card { padding: var(--space-6); }
.config-title { font-size: 0.95rem; font-weight: 600; margin-bottom: var(--space-5); }
.config-grid { display: flex; flex-direction: column; gap: var(--space-3); }
.config-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-surface); border-radius: var(--r-sm);
  border: 1px solid var(--border);
  font-size: 0.875rem;
}
.config-row span { color: var(--text-secondary); }
.config-row code {
  font-family: var(--font-mono); font-size: 0.8rem;
  color: var(--cyan-300); background: rgba(0,180,216,0.06);
  padding: 2px 8px; border-radius: 4px;
}

/* ── Toast ────────────────────────────────────────────────────── */
.toast-container {
  position: fixed; bottom: var(--space-6); right: var(--space-6);
  display: flex; flex-direction: column; gap: var(--space-3);
  z-index: 999; pointer-events: none;
}
.toast {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: var(--bg-elevated); border-radius: var(--r-lg);
  border: 1px solid var(--border); box-shadow: var(--shadow-md);
  font-size: 0.875rem; pointer-events: all;
  animation: toast-in 300ms ease;
  max-width: 360px;
}
.toast.success { border-color: rgba(74,222,128,0.3); }
.toast.error   { border-color: rgba(239,68,68,0.3); }
@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toast-out {
  to { opacity: 0; transform: translateX(20px); }
}

/* ── Utilities ────────────────────────────────────────────────── */
.hidden { display: none !important; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* ── Scrollbar ────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: var(--bg-elevated); border-radius: var(--r-full); }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  .header-inner { padding: var(--space-3) var(--space-4); gap: var(--space-3); flex-wrap: wrap; }
  .header-nav { order: 3; flex: 1 100%; justify-content: center; }
  .main { padding: var(--space-6) var(--space-4) var(--space-12); }
  .hero-title { font-size: 1.6rem; }
  .query-top { flex-direction: column; }
  .query-actions { flex-direction: row; }
  .examples-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .config-row { flex-direction: column; align-items: flex-start; gap: var(--space-1); }
}
@media (max-width: 480px) {
  .examples-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}