:root {
  --bg: #f4f7fb;
  --bg2: #ffffff;
  --bg3: #e7edf5;
  --primary: #2563eb;
  --primary2: #60a5fa;
  --accent: #0f766e;
  --accent2: #22c55e;
  --green: #10b981;
  --green2: #34d399;
  --green3: #047857;
  --amber: #f59e0b;
  --amber2: #fbbf24;
  --dim: #e2e8f0;
  --warning: #f59e0b;
  --danger: #ef4444;
  --muted: #64748b;
  --text: #102a43;
  --surface: #ffffff;
  --surface2: #f8fafc;
  --surface3: #edf4ff;
  --border: #dbeafe;
  --shadow: rgba(15, 23, 42, 0.08);
  --mono: 'Share Tech Mono', monospace;
  --display: 'Orbitron', sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--mono);
  color: var(--text);
  background: radial-gradient(circle at 12% 14%, #ffffff 0%, rgba(240, 248, 255, 0.88) 28%, transparent 54%),
              radial-gradient(circle at 85% 20%, rgba(125, 211, 252, 0.22), transparent 35%),
              linear-gradient(155deg, #f8fbff 0%, #eef4ff 40%, #e1eaf6 100%);
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

body::before {
  background: radial-gradient(circle at top, rgba(37, 99, 235, 0.12), transparent 35%);
}

body::after {
  background: linear-gradient(180deg, transparent 0%, rgba(255, 255, 255, 0.75) 100%);
}

.container {
  position: relative;
  z-index: 1;
  width: min(100%, 1120px);
  margin: 0 auto;
  padding: 28px 18px 48px;
}

header {
  text-align: center;
  padding: 24px 0 20px;
}

.header-line {
  width: 80%;
  max-width: 360px;
  height: 1px;
  margin: 0 auto;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

h1 {
  margin: 18px auto 8px;
  font-family: var(--display);
  font-size: clamp(32px, 5vw, 46px);
  letter-spacing: 3px;
  color: var(--primary);
}

.subtitle {
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 1.5px;
  opacity: 0.92;
}

.screen {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 24px 50px rgba(15, 23, 42, 0.08);
  border-radius: 24px;
  padding: 26px 26px 24px;
  overflow: hidden;
}

.screen-grid {
  display: grid;
  grid-template-columns: minmax(300px, 410px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.game-content {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.robot-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 26px 26px 22px;
  min-height: 500px;
  border-radius: 30px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(237, 244, 255, 0.96));
  border: 1px solid rgba(148, 163, 184, 0.18);
  box-shadow: 0 20px 44px rgba(15, 23, 42, 0.1);
  overflow: hidden;
}

.robot-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 28% 22%, rgba(96, 165, 250, 0.18), transparent 24%),
              radial-gradient(circle at 70% 80%, rgba(45, 212, 191, 0.14), transparent 18%);
  pointer-events: none;
}


.robot-subtitle {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
  padding: 8px 12px;
  border: 1px solid rgba(59, 130, 246, 0.16);
  border-radius: 999px;
  background: rgba(248, 250, 252, 0.8);
}

.robot-panel > * {
  position: relative;
  z-index: 1;
}

.robot-canvas {
  width: 100%;
  max-width: 360px;
  height: auto;
  border-radius: 24px;
  background: #eef7ff;
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.08);
}

.robot-label {
  display: none;
}

.phase-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.84), rgba(248, 250, 252, 0.95));
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 18px 18px 16px;
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.05);
}

.screen::before {
  content: attr(data-label);
  position: absolute;
  top: -14px;
  left: 22px;
  background: var(--surface);
  color: var(--primary);
  font-size: 11px;
  letter-spacing: 1.5px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
}

.status-bar,
.btn-row,
.learn-grid,
.db-stats,
.component-grid {
  display: flex;
}

.status-bar {
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: linear-gradient(180deg, #ffffff, var(--surface3));
  font-size: 12px;
  color: var(--muted);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.22);
  animation: pulse 1.8s infinite;
  margin-right: 8px;
}

@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(0, 255, 65, 0.16);
  background: rgba(0, 255, 65, 0.03);
}

.stat-chip span {
  color: var(--amber);
}

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--amber);
  letter-spacing: 2px;
  font-size: 11px;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(37, 99, 235, 0.18);
  padding-bottom: 8px;
}

.question-number {
  color: var(--amber);
  letter-spacing: 2px;
  font-size: 10px;
  margin-bottom: 10px;
}

.question-text {
  color: var(--green);
  font-size: clamp(15px, 2.3vw, 20px);
  line-height: 1.75;
  min-height: 74px;
  margin-bottom: 24px;
  text-shadow: 0 0 12px rgba(16, 185, 129, 0.18);
}

.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--green);
  margin-left: 4px;
  animation: blink 1s infinite steps(2, start);
  vertical-align: text-bottom;
}

@keyframes blink {
  0%,49% { opacity: 1; }
  50%,100% { opacity: 0; }
}

.progress-container {
  margin-bottom: 22px;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.progress-track {
  width: 100%;
  height: 5px;
  background: var(--dim);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--green3), var(--green));
  border-radius: 999px;
  box-shadow: 0 0 12px rgba(0, 255, 65, 0.35);
  transition: width 0.35s ease;
}

.candidates-info {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  margin-bottom: 18px;
  padding: 8px 12px;
  border-left: 3px solid var(--green);
  background: rgba(0, 255, 65, 0.04);
}

.candidates-count {
  font-family: var(--display);
  color: var(--green);
  font-size: 16px;
}

.btn-row {
  gap: 12px;
  flex-wrap: wrap;
  display: flex;
  margin-top: 10px;
}

.btn {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 22px;
  font-family: var(--mono);
  font-size: 13px;
  cursor: pointer;
  letter-spacing: 0.8px;
  background: var(--surface2);
  color: var(--text);
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease;
  position: relative;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
}

.btn:active {
  transform: translateY(0);
}

.btn-yes {
  color: var(--accent);
  border-color: rgba(34, 197, 94, 0.18);
  background: rgba(34, 197, 94, 0.08);
}

.btn-no {
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.18);
  background: rgba(239, 68, 68, 0.08);
}

.btn-maybe {
  color: var(--warning);
  border-color: rgba(245, 158, 11, 0.18);
  background: rgba(245, 158, 11, 0.08);
}

.btn-unknown {
  color: var(--muted);
  border-color: rgba(99,102,241,0.08);
  background: rgba(99,102,241,0.04);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary2), var(--primary));
  color: #fff;
  border-color: transparent;
}

.btn-secondary {
  background: var(--surface2);
  color: var(--text);
}

.btn-amber {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

.btn-danger {
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.18);
  background: rgba(239, 68, 68, 0.08);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.input-field {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 14px;
  letter-spacing: 0.4px;
  outline: none;
}

.input-field:focus {
  border-color: var(--primary);
  box-shadow: 0 0 18px rgba(37, 99, 235, 0.16);
}

.guess-reveal {
  text-align: center;
  padding: 14px 0 10px;
}

.guess-label {
  color: var(--warning);
  letter-spacing: 1.5px;
  font-size: 11px;
  margin-bottom: 10px;
}

.guess-icon {
  display: block;
  font-size: 48px;
  margin-bottom: 10px;
}

.guess-name {
  font-family: var(--display);
  font-size: clamp(26px, 6vw, 38px);
  color: var(--primary);
  margin-bottom: 10px;
}

.guess-desc {
  color: var(--text);
  opacity: 0.86;
  font-size: 14px;
  line-height: 1.75;
}

.result-correct,
.result-wrong,
.notice {
  border-radius: 16px;
  padding: 18px 20px;
  line-height: 1.6;
}

.result-correct {
  background: rgba(34, 197, 94, 0.12);
  color: var(--accent);
  border: 1px solid rgba(34, 197, 94, 0.18);
}

.result-wrong {
  background: rgba(239, 68, 68, 0.12);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.18);
}

.notice {
  margin: 14px 0;
  font-size: 13px;
}

.notice-info {
  border-left: 4px solid var(--accent);
  background: rgba(34, 197, 94, 0.12);
  color: var(--accent);
}

.notice-warn {
  border-left: 4px solid var(--warning);
  background: rgba(245, 158, 11, 0.12);
  color: var(--warning);
}

.history-log {
  margin-top: 18px;
  max-height: 180px;
  overflow-y: auto;
  padding-right: 6px;
}

.log-entry {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(0, 255, 65, 0.05);
  font-size: 11px;
}

.log-q {
  color: var(--green2);
  flex: 1;
}

.log-a.log-yes { color: var(--green); }
.log-a.log-no { color: var(--danger); }
.log-a.log-maybe { color: var(--amber); }
.log-a.log-unknown { color: var(--muted); }

.learn-grid {
  flex-wrap: wrap;
  gap: 10px;
}

.learn-attr {
  background: var(--dim);
  border: 1px solid rgba(0, 255, 65, 0.12);
  padding: 12px 14px;
  border-radius: 10px;
  width: calc(50% - 5px);
  min-width: 140px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.learn-attr:hover { transform: translateY(-1px); }

.learn-attr.active-yes {
  border-color: rgba(0, 255, 65, 0.34);
  background: rgba(0, 255, 65, 0.08);
}

.learn-attr.active-no {
  border-color: rgba(255, 77, 77, 0.34);
  background: rgba(255, 77, 77, 0.08);
}

.attr-label {
  font-size: 12px;
  line-height: 1.4;
}

.attr-toggle {
  font-size: 16px;
  min-width: 18px;
  text-align: center;
}

.db-panel {
  margin-top: 34px;
}

.db-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 16px;
  cursor: pointer;
}

.db-panel-body {
  margin-top: -1px;
  border: 1px solid var(--border);
  border-radius: 0 0 16px 16px;
  background: var(--surface2);
  padding: 20px;
  display: none;
}

.db-panel-body.open {
  display: block;
}

.db-stats {
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 18px;
}

.db-stat {
  flex: 1 1 140px;
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  text-align: center;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.04);
}

.db-stat-val {
  font-family: var(--display);
  font-size: 24px;
  color: var(--primary);
}

.db-stat-lbl {
  margin-top: 6px;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 1px;
}

.db-subinfo {
  margin: -4px 0 10px;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.5px;
}

.component-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 12px;
  max-height: 420px;
  overflow-y: auto;
  margin-bottom: 18px;
}

.type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.type-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);
}

.type-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.type-name {
  font-size: 12px;
  color: var(--text);
  letter-spacing: 0.5px;
  font-weight: 700;
}

.type-count {
  font-family: var(--display);
  font-size: 14px;
  color: var(--primary);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  background: var(--surface3);
}

.type-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.type-chip {
  display: inline-flex;
  align-items: center;
  padding: 5px 9px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface2);
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.type-chip-more {
  color: var(--primary);
  border-color: rgba(37, 99, 235, 0.26);
  background: rgba(37, 99, 235, 0.08);
}

.comp-chip {
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 14px;
  font-size: 12px;
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
}

.comp-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.comp-name {
  color: var(--text);
  font-weight: 700;
  font-size: 13px;
}

.comp-desc {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
  margin-bottom: 8px;
}

.comp-attrs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.comp-attr {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--muted);
  font-size: 10px;
}

.comp-attr-empty {
  color: var(--warning);
  border-color: rgba(245, 158, 11, 0.28);
  background: rgba(245, 158, 11, 0.08);
}

.comp-type {
  display: inline-flex;
  margin-left: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(37, 99, 235, 0.24);
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
  font-size: 10px;
  letter-spacing: 0.3px;
}

.comp-chip.new-chip {
  border-color: rgba(245, 158, 11, 0.4);
  color: var(--warning);
}

.file-input-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  color: var(--primary);
  cursor: pointer;
  border-radius: 14px;
  background: var(--surface2);
  font-size: 12px;
}

.file-input-label:hover {
  background: #eff6ff;
}

#fileInput {
  display: none;
}

.hidden {
  display: none !important;
}

.fade-in {
  animation: fadeIn 0.32s ease-out;
}

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


.confetti-row {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-bottom: 12px;
  font-size: 20px;
}

@media (max-width: 900px) {
  .screen-grid { grid-template-columns: 1fr; }
  .robot-panel { min-height: 350px; }
}

@media (max-width: 720px) {
  .container { padding: 18px 14px 36px; }
  .screen { padding: 20px 14px 16px; }
  .phase-card { padding: 14px 12px; }
  .status-bar { padding: 10px; }
  .learn-attr { width: 100%; }
  .db-stat { flex: 1 1 100%; }
  .type-grid { grid-template-columns: 1fr; }
  .component-grid { grid-template-columns: 1fr; }
  .component-grid { max-height: 220px; }
}