/* ===== CSS Variables / Themes ===== */
:root {
  --transition-speed: 0.3s;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d27;
  --bg-card: #222639;
  --bg-card-hover: #2a2f45;
  --bg-input: #1a1d27;
  --text-primary: #e8eaf0;
  --text-secondary: #9ca3b4;
  --text-muted: #5f6780;
  --accent: #6c63ff;
  --accent-hover: #5a52e0;
  --accent-glow: rgba(108, 99, 255, 0.3);
  --border: #2a2f45;
  --tag-bg: #2a2f45;
  --tag-text: #a5b0d0;
  --tag-active-bg: #6c63ff;
  --tag-active-text: #fff;
  --danger: #ff4757;
  --success: #2ed573;
  --warning: #ffa502;
  --overlay: rgba(0, 0, 0, 0.7);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Inter', system-ui, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --header-bg: rgba(15, 17, 23, 0.9);
  --scrollbar-track: #1a1d27;
  --scrollbar-thumb: #333854;
  --match-high: #2ed573;
  --match-medium: #ffa502;
  --match-low: #ff6348;
  --category-header-bg: #1e2235;
}

/* Light Theme */
[data-theme="light"] {
  --bg-primary: #f5f7fa;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f2f5;
  --bg-input: #f0f2f5;
  --text-primary: #1a1a2e;
  --text-secondary: #555770;
  --text-muted: #9ca3af;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-glow: rgba(79, 70, 229, 0.2);
  --border: #e2e5eb;
  --tag-bg: #eef0f4;
  --tag-text: #555770;
  --tag-active-bg: #4f46e5;
  --tag-active-text: #fff;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --overlay: rgba(0, 0, 0, 0.5);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --font-main: 'Inter', system-ui, sans-serif;
  --font-heading: 'Inter', system-ui, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --header-bg: rgba(255, 255, 255, 0.92);
  --scrollbar-track: #f0f2f5;
  --scrollbar-thumb: #c9cdd5;
  --match-high: #16a34a;
  --match-medium: #d97706;
  --match-low: #dc2626;
  --category-header-bg: #f0f2f5;
}

/* Retro Theme */
[data-theme="retro"] {
  --bg-primary: #1a1308;
  --bg-secondary: #2a200e;
  --bg-card: #33280f;
  --bg-card-hover: #3d3014;
  --bg-input: #2a200e;
  --text-primary: #fcd34d;
  --text-secondary: #c9a83a;
  --text-muted: #8b7320;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --accent-glow: rgba(245, 158, 11, 0.3);
  --border: #4a3a15;
  --tag-bg: #3d3014;
  --tag-text: #c9a83a;
  --tag-active-bg: #f59e0b;
  --tag-active-text: #1a1308;
  --danger: #ef4444;
  --success: #84cc16;
  --warning: #fb923c;
  --overlay: rgba(0, 0, 0, 0.75);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --font-main: 'Press Start 2P', monospace;
  --font-heading: 'Press Start 2P', monospace;
  --radius: 4px;
  --radius-sm: 2px;
  --header-bg: rgba(26, 19, 8, 0.95);
  --scrollbar-track: #2a200e;
  --scrollbar-thumb: #5a4820;
  --match-high: #84cc16;
  --match-medium: #fb923c;
  --match-low: #ef4444;
  --category-header-bg: #2a200e;
}

/* Bumblebee Theme */
[data-theme="bumblebee"] {
  --bg-primary: #fefce8;
  --bg-secondary: #fef9c3;
  --bg-card: #ffffff;
  --bg-card-hover: #fef08a;
  --bg-input: #fef9c3;
  --text-primary: #1c1917;
  --text-secondary: #57534e;
  --text-muted: #a8a29e;
  --accent: #eab308;
  --accent-hover: #ca8a04;
  --accent-glow: rgba(234, 179, 8, 0.3);
  --border: #fde047;
  --tag-bg: #fef08a;
  --tag-text: #713f12;
  --tag-active-bg: #eab308;
  --tag-active-text: #1c1917;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #ea580c;
  --overlay: rgba(0, 0, 0, 0.4);
  --shadow: 0 4px 24px rgba(234, 179, 8, 0.15);
  --font-main: 'Inter', system-ui, sans-serif;
  --font-heading: 'Inter', system-ui, sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --header-bg: rgba(254, 252, 232, 0.92);
  --scrollbar-track: #fef9c3;
  --scrollbar-thumb: #fde047;
  --match-high: #16a34a;
  --match-medium: #ea580c;
  --match-low: #dc2626;
  --category-header-bg: #fef9c3;
}

/* Cupcake Theme */
[data-theme="cupcake"] {
  --bg-primary: #faf7f5;
  --bg-secondary: #fff1f2;
  --bg-card: #ffffff;
  --bg-card-hover: #fce7f3;
  --bg-input: #fff1f2;
  --text-primary: #3f3244;
  --text-secondary: #78667c;
  --text-muted: #b5a3ba;
  --accent: #e879a0;
  --accent-hover: #db5080;
  --accent-glow: rgba(232, 121, 160, 0.25);
  --border: #f5d0de;
  --tag-bg: #fce7f3;
  --tag-text: #9d5c7a;
  --tag-active-bg: #e879a0;
  --tag-active-text: #fff;
  --danger: #e11d48;
  --success: #059669;
  --warning: #d97706;
  --overlay: rgba(0, 0, 0, 0.35);
  --shadow: 0 4px 24px rgba(232, 121, 160, 0.12);
  --font-main: 'Inter', system-ui, sans-serif;
  --font-heading: 'Inter', system-ui, sans-serif;
  --radius: 20px;
  --radius-sm: 12px;
  --header-bg: rgba(250, 247, 245, 0.92);
  --scrollbar-track: #fff1f2;
  --scrollbar-thumb: #f5d0de;
  --match-high: #059669;
  --match-medium: #d97706;
  --match-low: #e11d48;
  --category-header-bg: #fff1f2;
}

/* Cyberpunk Theme */
[data-theme="cyberpunk"] {
  --bg-primary: #0a0a1a;
  --bg-secondary: #12122a;
  --bg-card: #1a1a3e;
  --bg-card-hover: #222255;
  --bg-input: #12122a;
  --text-primary: #00ffff;
  --text-secondary: #ff00ff;
  --text-muted: #6666aa;
  --accent: #ff00ff;
  --accent-hover: #cc00cc;
  --accent-glow: rgba(255, 0, 255, 0.4);
  --border: #333377;
  --tag-bg: #1a1a3e;
  --tag-text: #00ffff;
  --tag-active-bg: #ff00ff;
  --tag-active-text: #0a0a1a;
  --danger: #ff0044;
  --success: #00ff88;
  --warning: #ffff00;
  --overlay: rgba(0, 0, 0, 0.8);
  --shadow: 0 4px 24px rgba(255, 0, 255, 0.2);
  --font-main: 'Orbitron', 'Inter', sans-serif;
  --font-heading: 'Orbitron', sans-serif;
  --radius: 4px;
  --radius-sm: 2px;
  --header-bg: rgba(10, 10, 26, 0.95);
  --scrollbar-track: #12122a;
  --scrollbar-thumb: #333377;
  --match-high: #00ff88;
  --match-medium: #ffff00;
  --match-low: #ff0044;
  --category-header-bg: #12122a;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  transition: background var(--transition-speed), color var(--transition-speed);
  overflow-x: hidden;
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 4px;
}

/* ===== Theme Switcher ===== */
.theme-switcher {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 1000;
}

.theme-toggle-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-speed);
  box-shadow: var(--shadow);
}
.theme-toggle-btn:hover {
  border-color: var(--accent);
  transform: rotate(30deg);
}

.theme-dropdown {
  position: absolute;
  top: 52px;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  min-width: 160px;
  box-shadow: var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease;
}
.theme-dropdown.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.theme-option {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.85rem;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}
.theme-option:hover {
  background: var(--bg-card-hover);
}

.theme-preview {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--border);
  flex-shrink: 0;
}
.light-preview { background: linear-gradient(135deg, #f5f7fa, #e2e5eb); }
.dark-preview { background: linear-gradient(135deg, #1a1d27, #6c63ff); }
.retro-preview { background: linear-gradient(135deg, #2a200e, #f59e0b); }
.bumblebee-preview { background: linear-gradient(135deg, #fef9c3, #eab308); }
.cupcake-preview { background: linear-gradient(135deg, #fff1f2, #e879a0); }
.cyberpunk-preview { background: linear-gradient(135deg, #0a0a1a, #ff00ff); }

/* ===== Landing Page ===== */
.landing {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.bg-slideshow {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.bg-slideshow .slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
  transform: scale(1.05);
}
.bg-slideshow .slide.active {
  opacity: 1;
  transform: scale(1);
  transition: opacity 1.5s ease-in-out, transform 8s ease-out;
}

.bg-overlay {
  position: absolute;
  inset: 0;
  background: var(--overlay);
  z-index: 1;
  backdrop-filter: blur(2px);
}

.landing-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 2rem;
  max-width: 650px;
  animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.logo-icon {
  color: var(--accent);
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 0 20px var(--accent-glow));
}

.landing-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="retro"] .landing-title,
[data-theme="cyberpunk"] .landing-title {
  font-size: clamp(1.2rem, 4vw, 2rem);
  letter-spacing: 0.05em;
}

.landing-subtitle {
  font-size: clamp(0.9rem, 2.5vw, 1.2rem);
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

[data-theme="retro"] .landing-subtitle,
[data-theme="cyberpunk"] .landing-subtitle {
  font-size: clamp(0.55rem, 1.5vw, 0.7rem);
}

.landing-desc {
  font-size: clamp(0.85rem, 2vw, 1rem);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2.5rem;
}

[data-theme="retro"] .landing-desc,
[data-theme="cyberpunk"] .landing-desc {
  font-size: clamp(0.55rem, 1.2vw, 0.7rem);
  line-height: 2;
}

.btn-start {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px var(--accent-glow);
}
.btn-start:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

[data-theme="retro"] .btn-start,
[data-theme="cyberpunk"] .btn-start {
  font-size: 0.7rem;
  border-radius: var(--radius);
}

/* ===== Diagnosis Page ===== */
.diagnosis-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden {
  display: none !important;
}

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 70px 12px 24px;
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.btn-back {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
.btn-back:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.header-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  flex: 1;
}

[data-theme="retro"] .header-title,
[data-theme="cyberpunk"] .header-title {
  font-size: 0.7rem;
}

.selected-count {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--tag-bg);
  padding: 6px 14px;
  border-radius: 50px;
  white-space: nowrap;
}

/* Layout */
.diagnosis-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  flex: 1;
  gap: 0;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* Symptoms Panel */
.symptoms-panel {
  padding: 20px;
  overflow-y: auto;
  max-height: calc(100vh - 65px);
  border-right: 1px solid var(--border);
}

.search-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 20px;
  transition: border-color 0.2s;
}
.search-bar:focus-within {
  border-color: var(--accent);
}
.search-bar svg {
  color: var(--text-muted);
  flex-shrink: 0;
}
.search-bar input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 0.9rem;
  outline: none;
}
.search-bar input::placeholder {
  color: var(--text-muted);
}

[data-theme="retro"] .search-bar input,
[data-theme="cyberpunk"] .search-bar input {
  font-size: 0.65rem;
}

/* Symptom Categories */
.symptom-category {
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.category-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  background: var(--category-header-bg);
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
}
.category-header:hover {
  background: var(--bg-card-hover);
}

.category-header h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}

[data-theme="retro"] .category-header h3,
[data-theme="cyberpunk"] .category-header h3 {
  font-size: 0.55rem;
}

.category-arrow {
  color: var(--text-muted);
  transition: transform 0.3s;
  flex-shrink: 0;
}
.category-header.expanded .category-arrow {
  transform: rotate(180deg);
}

.category-count {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.category-body {
  display: none;
  padding: 12px;
  gap: 8px;
  flex-wrap: wrap;
}
.category-body.expanded {
  display: flex;
}

.symptom-tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-family: var(--font-main);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--tag-text);
  background: var(--tag-bg);
  border: 1px solid var(--border);
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.symptom-tag:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
}
.symptom-tag.active {
  background: var(--tag-active-bg);
  color: var(--tag-active-text);
  border-color: var(--tag-active-bg);
  box-shadow: 0 2px 8px var(--accent-glow);
}

.symptom-tag.hidden-tag {
  display: none;
}

[data-theme="retro"] .symptom-tag,
[data-theme="cyberpunk"] .symptom-tag {
  font-size: 0.55rem;
  border-radius: var(--radius-sm);
  padding: 6px 10px;
}

/* Results Panel */
.results-panel {
  padding: 20px;
  overflow-y: auto;
  max-height: calc(100vh - 65px);
  display: flex;
  flex-direction: column;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.results-header h2 {
  font-size: 1rem;
  font-weight: 700;
}

[data-theme="retro"] .results-header h2,
[data-theme="cyberpunk"] .results-header h2 {
  font-size: 0.65rem;
}

.btn-clear {
  font-family: var(--font-main);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--danger);
  background: transparent;
  border: 1px solid var(--danger);
  padding: 6px 14px;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-clear:hover {
  background: var(--danger);
  color: #fff;
}

[data-theme="retro"] .btn-clear,
[data-theme="cyberpunk"] .btn-clear {
  font-size: 0.55rem;
  border-radius: var(--radius-sm);
}

/* Selected Symptoms Display */
.selected-symptoms {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
  min-height: 36px;
}

.selected-symptoms .empty-state {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

[data-theme="retro"] .selected-symptoms .empty-state,
[data-theme="cyberpunk"] .selected-symptoms .empty-state {
  font-size: 0.55rem;
}

.selected-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--tag-active-text);
  background: var(--accent);
  border-radius: 50px;
  animation: pillIn 0.2s ease;
}

@keyframes pillIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

.selected-pill button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border: none;
  background: rgba(255,255,255,0.25);
  color: inherit;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.65rem;
  line-height: 1;
}
.selected-pill button:hover {
  background: rgba(255,255,255,0.45);
}

[data-theme="retro"] .selected-pill,
[data-theme="cyberpunk"] .selected-pill {
  font-size: 0.5rem;
  border-radius: var(--radius-sm);
}

/* Results List */
.results-list {
  flex: 1;
}

.empty-results {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 20px;
  color: var(--text-muted);
  text-align: center;
}
.empty-results p {
  font-size: 0.9rem;
}

[data-theme="retro"] .empty-results p,
[data-theme="cyberpunk"] .empty-results p {
  font-size: 0.6rem;
}

/* Disease Card */
.disease-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 12px;
  transition: all 0.2s ease;
  animation: cardIn 0.3s ease;
  cursor: pointer;
}

@keyframes cardIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.disease-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.disease-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.disease-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

[data-theme="retro"] .disease-name,
[data-theme="cyberpunk"] .disease-name {
  font-size: 0.65rem;
}

.match-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 50px;
  white-space: nowrap;
  flex-shrink: 0;
}

[data-theme="retro"] .match-badge,
[data-theme="cyberpunk"] .match-badge {
  font-size: 0.5rem;
  border-radius: var(--radius-sm);
}

.match-high {
  color: var(--match-high);
  background: rgba(46, 213, 115, 0.12);
}
.match-medium {
  color: var(--match-medium);
  background: rgba(255, 165, 2, 0.12);
}
.match-low {
  color: var(--match-low);
  background: rgba(255, 99, 72, 0.12);
}

.disease-agent {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-style: italic;
}

[data-theme="retro"] .disease-agent,
[data-theme="cyberpunk"] .disease-agent {
  font-size: 0.55rem;
}

.disease-age {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

[data-theme="retro"] .disease-age,
[data-theme="cyberpunk"] .disease-age {
  font-size: 0.5rem;
}

.match-bar-container {
  height: 6px;
  background: var(--bg-input);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 10px;
}

.match-bar {
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s ease;
}
.match-bar.high { background: var(--match-high); }
.match-bar.medium { background: var(--match-medium); }
.match-bar.low { background: var(--match-low); }

.disease-symptoms-detail {
  display: none;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.disease-card.expanded .disease-symptoms-detail {
  display: block;
}

.symptom-match-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.symptom-match-item {
  font-size: 0.7rem;
  padding: 4px 10px;
  border-radius: 50px;
  font-weight: 500;
}
.symptom-match-item.matched {
  background: rgba(46, 213, 115, 0.15);
  color: var(--match-high);
}
.symptom-match-item.unmatched {
  background: var(--tag-bg);
  color: var(--text-muted);
}

[data-theme="retro"] .symptom-match-item,
[data-theme="cyberpunk"] .symptom-match-item {
  font-size: 0.45rem;
  border-radius: var(--radius-sm);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .diagnosis-layout {
    grid-template-columns: 1fr;
  }
  .symptoms-panel {
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .results-panel {
    max-height: none;
  }
}

@media (max-width: 600px) {
  .app-header {
    padding: 10px 60px 10px 16px;
    gap: 10px;
  }
  .header-title {
    font-size: 0.9rem;
  }
  .symptoms-panel,
  .results-panel {
    padding: 14px;
  }
  .landing-content {
    padding: 1.5rem;
  }
  .btn-start {
    padding: 14px 28px;
    font-size: 0.9rem;
  }
  .theme-switcher {
    top: 10px;
    right: 10px;
  }
  [data-theme="retro"] .header-title,
  [data-theme="cyberpunk"] .header-title {
    font-size: 0.55rem;
  }
}

@media (max-width: 400px) {
  .landing-title {
    font-size: 1.8rem;
  }
  .category-body {
    gap: 6px;
  }
  .symptom-tag {
    padding: 6px 10px;
    font-size: 0.75rem;
  }
}

/* ===== Cyberpunk glitch effect ===== */
[data-theme="cyberpunk"] .landing-title {
  animation: glitch 3s infinite;
}

@keyframes glitch {
  0%, 90%, 100% { text-shadow: none; }
  92% { text-shadow: -2px 0 #ff00ff, 2px 0 #00ffff; }
  94% { text-shadow: 2px 0 #ff00ff, -2px 0 #00ffff; }
  96% { text-shadow: -1px 0 #ff00ff, 1px 0 #00ffff; }
  98% { text-shadow: 1px 0 #ff00ff, -1px 0 #00ffff; }
}

/* Cyberpunk border glow */
[data-theme="cyberpunk"] .disease-card:hover {
  box-shadow: 0 0 15px rgba(255, 0, 255, 0.3), 0 0 30px rgba(0, 255, 255, 0.1);
}

[data-theme="cyberpunk"] .btn-start {
  box-shadow: 0 0 20px rgba(255, 0, 255, 0.4), 0 0 40px rgba(255, 0, 255, 0.2);
}

/* ===== Results summary & controls ===== */
.results-summary {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 8px 0;
  margin-bottom: 4px;
  font-weight: 500;
}

.weak-results-note {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  margin-bottom: 8px;
  border-radius: var(--radius);
  background: rgba(255, 180, 0, 0.1);
  border: 1px solid rgba(255, 180, 0, 0.25);
  color: var(--text-secondary);
  font-size: 0.78rem;
  line-height: 1.4;
}

.show-more-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 10px;
  margin-top: 8px;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.show-more-btn:hover {
  background: var(--accent);
  color: white;
  border-style: solid;
}

.more-results-container {
  animation: fadeInUp 0.3s ease;
}

/* Retro scanline effect */
[data-theme="retro"] .landing::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 3;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.1) 2px,
    rgba(0, 0, 0, 0.1) 4px
  );
  pointer-events: none;
}