:root {
  --bg: #faf8ef;
  --ink: #17160f;
  --muted: #77746b;
  --line: #ded9ca;
  --surface: #ffffff;
  --surface-2: #f0ede3;
  --danger: #e0245e;
  --ok: #06b6a4;
  --shadow: 0 14px 40px rgba(23, 22, 15, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(90deg, #f2542d 0 16.66%, #2a4dd0 16.66% 33.32%, #7c3aed 33.32% 49.98%, #06b6a4 49.98% 66.64%, #e0245e 66.64% 83.3%, #f4a300 83.3% 100%) top / 100% 8px no-repeat,
    var(--bg);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: 0;
}

.app-shell {
  width: min(calc(100% - 32px), 980px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 8px 18px 32px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.brand-mark {
  display: inline-grid;
  grid-template-columns: repeat(3, 10px);
  gap: 3px;
}

.brand-mark span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.brand-mark span:nth-child(1) { background: #f2542d; }
.brand-mark span:nth-child(2) { background: #2a4dd0; }
.brand-mark span:nth-child(3) { background: #06b6a4; }

.nav-code {
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
  padding-top: 28px;
}

.eyebrow {
  color: #f2542d;
  font-weight: 800;
  font-size: 13px;
  margin: 0 0 18px;
}

.share-invite-banner {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  max-width: 620px;
  margin: 0 0 18px;
  padding: 8px 12px 8px 8px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: #fff;
  color: #4c493f;
  font-size: 13px;
  line-height: 1.45;
  font-weight: 800;
}

.share-invite-banner strong {
  flex: none;
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  font-weight: 900;
}

h1 {
  margin: 0;
  font-size: clamp(42px, 8vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

.lead {
  margin: 22px 0 0;
  max-width: 620px;
  font-size: 18px;
  line-height: 1.72;
  color: #39372f;
}

.mode-list {
  display: grid;
  gap: 12px;
  margin-top: 34px;
  max-width: 620px;
}

.mode-button {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 28px;
  gap: 16px;
  align-items: center;
  width: 100%;
  min-height: 96px;
  padding: 18px 20px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.mode-button:hover,
.mode-button:focus-visible {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  outline: 0;
  border-color: #17160f;
}

.mode-button.primary {
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
}

.mode-count {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 30px;
  font-weight: 900;
}

.mode-title {
  font-size: 18px;
  font-weight: 900;
}

.mode-copy {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.primary .mode-copy {
  color: #d9d5c9;
}

.mode-arrow {
  font-size: 24px;
  text-align: right;
  opacity: 0.6;
}

.footnote {
  margin: 30px 0 0;
  color: #908c80;
  font-size: 12px;
  line-height: 1.7;
}

.text-link {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.quiz-layout {
  max-width: 720px;
  margin: 0 auto;
  padding-top: 14px;
}

.quiz-head {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  margin-top: 8px;
}

.icon-button {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
}

.icon-button:hover,
.icon-button:focus-visible {
  outline: 0;
  border-color: var(--ink);
}

.progress {
  min-width: 0;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
  font-weight: 800;
}

.progress-track {
  height: 8px;
  border-radius: 999px;
  background: #e7e2d4;
  overflow: hidden;
  margin-top: 8px;
}

.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #f2542d, #2a4dd0, #06b6a4);
  transition: width 0.2s ease;
}

.question-card {
  margin-top: 44px;
  border-radius: 8px;
  background: #fff;
  border: 1px solid var(--line);
  padding: 30px;
  box-shadow: var(--shadow);
}

.dimension-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 900;
  color: var(--muted);
}

.dimension-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.question-text {
  margin: 18px 0 24px;
  font-size: clamp(25px, 6vw, 40px);
  line-height: 1.22;
  font-weight: 900;
}

.scale {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.scale-button {
  min-height: 92px;
  padding: 12px 8px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  display: grid;
  place-items: center;
  gap: 6px;
}

.scale-button:hover,
.scale-button:focus-visible {
  outline: 0;
  border-color: var(--ink);
  background: var(--surface-2);
}

.scale-number {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 24px;
  font-weight: 900;
}

.scale-label {
  font-size: 12px;
  color: var(--muted);
  text-align: center;
  line-height: 1.3;
}

.calc {
  min-height: calc(100vh - 40px);
  display: grid;
  place-items: center;
  text-align: center;
}

.calc-mark {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  border: 10px solid #e8e2d3;
  border-top-color: #2a4dd0;
  border-right-color: #06b6a4;
  animation: spin 1s linear infinite;
  margin: 0 auto 22px;
}

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

.result-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 22px;
  align-items: start;
  padding-top: 20px;
}

.result-hero,
.panel {
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
}

.result-hero {
  overflow: hidden;
}

.result-top {
  padding: 28px;
  color: #fff;
  background: var(--accent, #17160f);
}

.result-top-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 168px;
  gap: 22px;
  align-items: center;
}

.result-title-block {
  min-width: 0;
}

.result-label {
  font-size: 13px;
  font-weight: 900;
  opacity: 0.9;
}

.species {
  margin: 16px 0 0;
  font-size: clamp(34px, 7vw, 58px);
  line-height: 1.05;
  font-weight: 900;
}

.code-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 18px;
}

.code-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  font-weight: 900;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.confidence {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
}

.species-avatar {
  width: 168px;
  aspect-ratio: 1;
  border-radius: 8px;
  object-fit: cover;
  background: #faf8ef;
  border: 4px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 18px 36px rgba(23, 22, 15, 0.22);
}

.result-body {
  padding: 24px 28px 30px;
}

.summary {
  color: #4c493f;
  line-height: 1.75;
  margin: 0;
}

.bars {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.bar-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr) 44px;
  gap: 10px;
  align-items: center;
  font-size: 13px;
}

.bar-name {
  font-weight: 900;
}

.bar-track {
  height: 12px;
  background: #e9e4d6;
  border-radius: 999px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  width: 0%;
  background: var(--bar-color);
  border-radius: inherit;
}

.bar-value {
  text-align: right;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 900;
}

.panel {
  padding: 20px;
  margin-bottom: 14px;
}

.panel-title {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 900;
}

.share-panel {
  border-color: #17160f;
  box-shadow: 0 12px 28px rgba(23, 22, 15, 0.08);
}

.share-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 14px;
}

.share-heading .panel-title {
  margin-bottom: 4px;
}

.share-code {
  flex: none;
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  font-weight: 900;
}

.poster-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f3f0e6;
  aspect-ratio: 5 / 7;
}

.poster-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.18s ease;
  -webkit-touch-callout: default;
  user-select: auto;
}

.poster-image.ready {
  opacity: 1;
}

.poster-loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.poster-image.ready + .poster-loading {
  display: none;
}

.major-list {
  display: grid;
  gap: 10px;
}

.major-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.major-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.major-name {
  font-weight: 900;
}

.major-fit {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  color: var(--muted);
  flex: none;
}

.major-meta {
  margin-top: 5px;
  font-size: 12px;
  color: var(--muted);
}

.major-why {
  margin-top: 8px;
  color: #4c493f;
  font-size: 13px;
  line-height: 1.55;
}

.action-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.share-actions {
  margin-top: 14px;
}

.action-button,
.restart-button {
  min-height: 46px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  cursor: pointer;
  font-weight: 900;
}

.action-button.secondary,
.restart-button {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}

.action-button:hover,
.action-button:focus-visible,
.restart-button:hover,
.restart-button:focus-visible {
  outline: 0;
  filter: brightness(0.98);
}

.qr-wrap {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin-top: 14px;
}

.qr-wrap.compact {
  grid-template-columns: 96px minmax(0, 1fr);
}

.qr-wrap canvas {
  width: 96px;
  height: 96px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 6px;
  background: #fff;
}

.small-copy {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.toast {
  position: fixed;
  z-index: 10;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  max-width: min(88vw, 520px);
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  box-shadow: var(--shadow);
}

.share-guide {
  position: fixed;
  z-index: 20;
  inset: 0;
  background: rgba(23, 22, 15, 0.52);
}

.share-guide-arrow {
  position: absolute;
  top: 22px;
  right: 28px;
  width: 76px;
  height: 76px;
  border-top: 5px solid #fff;
  border-right: 5px solid #fff;
  transform: rotate(8deg);
  border-radius: 0 14px 0 0;
}

.share-guide-arrow::after {
  content: "";
  position: absolute;
  top: -12px;
  right: -12px;
  width: 18px;
  height: 18px;
  border-top: 5px solid #fff;
  border-right: 5px solid #fff;
  transform: rotate(45deg);
}

.share-guide-card {
  position: absolute;
  top: 112px;
  right: 24px;
  width: min(82vw, 340px);
  padding: 18px;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.share-guide-card strong {
  display: block;
  font-size: 18px;
  font-weight: 900;
}

.share-guide-card span {
  display: block;
  margin-top: 8px;
  color: #4c493f;
  line-height: 1.6;
  font-size: 14px;
}

.share-guide-card button {
  width: 100%;
  min-height: 42px;
  margin-top: 14px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-weight: 900;
}

.legal-page,
.noscript {
  width: min(100% - 36px, 760px);
  margin: 0 auto;
  padding: 48px 0;
  line-height: 1.8;
}

.legal-page h1 {
  font-size: 38px;
  line-height: 1.2;
  margin: 24px 0;
}

.muted {
  color: var(--muted);
}

@media (max-width: 840px) {
  .app-shell {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-grid,
  .result-layout {
    grid-template-columns: 1fr;
  }

  .result-layout {
    gap: 14px;
  }
}

@media (max-width: 560px) {
  .app-shell {
    padding-left: 16px;
    padding-right: 16px;
  }

  .topbar {
    min-height: 64px;
  }

  .hero-grid {
    padding-top: 18px;
  }

  .lead {
    font-size: 16px;
  }

  .mode-button {
    grid-template-columns: 54px minmax(0, 1fr) 22px;
    min-height: 88px;
    padding: 16px;
  }

  .share-invite-banner {
    align-items: flex-start;
    border-radius: 8px;
  }

  .mode-count {
    font-size: 26px;
  }

  .quiz-head {
    grid-template-columns: 42px minmax(0, 1fr);
  }

  .quiz-head .nav-code {
    grid-column: 1 / -1;
  }

  .question-card {
    margin-top: 26px;
    padding: 22px 18px;
  }

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

  .scale-button {
    min-height: 54px;
    grid-template-columns: 42px minmax(0, 1fr);
    text-align: left;
    place-items: center start;
  }

  .scale-label {
    text-align: left;
  }

  .result-top,
  .result-body {
    padding-left: 20px;
    padding-right: 20px;
  }

  .result-top-content {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .species-avatar {
    width: min(52vw, 172px);
    justify-self: start;
  }

  .bar-row {
    grid-template-columns: 64px minmax(0, 1fr) 38px;
  }

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

  .qr-wrap {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 1024px) {
  .app-shell {
    width: min(calc(100% - 96px), 1240px);
    padding: 8px 0 56px;
  }

  .topbar {
    min-height: 88px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 760px) minmax(340px, 390px);
    justify-content: space-between;
    gap: 72px;
    padding-top: 46px;
  }

  .eyebrow {
    margin-bottom: 22px;
  }

  h1 {
    font-size: clamp(64px, 6vw, 92px);
  }

  .lead {
    max-width: 740px;
    font-size: 20px;
  }

  .mode-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 760px;
    gap: 14px;
  }

  .mode-button {
    grid-template-columns: 64px minmax(0, 1fr) 24px;
    min-height: 116px;
    padding: 22px;
  }

  .mode-title {
    font-size: 19px;
  }

  .mode-copy {
    font-size: 13.5px;
  }

  .quiz-layout {
    max-width: 980px;
    padding-top: 34px;
  }

  .question-card {
    margin-top: 54px;
    padding: 42px;
  }

  .question-text {
    max-width: 860px;
    font-size: clamp(38px, 4vw, 54px);
  }

  .scale {
    gap: 12px;
  }

  .scale-button {
    min-height: 112px;
  }

  .result-layout {
    grid-template-columns: minmax(0, 760px) minmax(360px, 420px);
    gap: 28px;
    padding-top: 34px;
  }

  .result-top {
    padding: 42px;
  }

  .result-body {
    padding: 34px 42px 42px;
  }

  .summary {
    font-size: 17px;
  }

  .bar-row {
    grid-template-columns: 86px minmax(0, 1fr) 50px;
    font-size: 14px;
  }

  .panel {
    padding: 22px;
  }
}

@media (min-width: 1500px) {
  .app-shell {
    width: min(calc(100% - 160px), 1320px);
  }

  .hero-grid {
    grid-template-columns: minmax(0, 820px) 420px;
    gap: 80px;
  }

  .result-layout {
    grid-template-columns: minmax(0, 820px) 440px;
    gap: 32px;
  }
}