:root {
  --bg: #06111f;
  --bg-soft: #0c1b30;
  --surface: rgba(10, 24, 45, 0.8);
  --surface-strong: rgba(12, 31, 57, 0.94);
  --surface-raised: rgba(18, 43, 78, 0.94);
  --line: rgba(125, 168, 219, 0.24);
  --line-strong: rgba(151, 198, 255, 0.42);
  --text: #ebf3ff;
  --text-soft: #b6c8de;
  --text-faint: #7f96b3;
  --accent: #5cb4ff;
  --accent-strong: #1a7fe0;
  --accent-soft: rgba(92, 180, 255, 0.16);
  --accent-warm: #9ad8ff;
  --shadow-lg: 0 28px 70px rgba(0, 0, 0, 0.32);
  --shadow-md: 0 16px 36px rgba(2, 10, 22, 0.3);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --max-width: 1120px;
  --ease-out: 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-spring: 420ms cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: dark;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(60, 125, 210, 0.32), transparent 32%),
    radial-gradient(circle at 85% 15%, rgba(134, 201, 255, 0.18), transparent 26%),
    linear-gradient(145deg, #04101c 0%, #09203a 48%, #03101c 100%);
  line-height: 1.6;
}

body::before,
body::after {
  position: fixed;
  inset: auto;
  z-index: -1;
  content: "";
  pointer-events: none;
}

body::before {
  top: 4rem;
  right: 6vw;
  width: min(24rem, 34vw);
  height: min(24rem, 34vw);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(92, 180, 255, 0.16), transparent 70%);
  filter: blur(8px);
}

body::after {
  left: -8rem;
  bottom: 6rem;
  width: 24rem;
  height: 24rem;
  border: 1px solid rgba(151, 198, 255, 0.12);
  border-radius: 38% 62% 58% 42%;
  opacity: 0.55;
  transform: rotate(-12deg);
}

a {
  color: inherit;
}

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

button {
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

.app-shell {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
  padding: 2rem 0 3rem;
}

.screen {
  min-height: calc(100vh - 5rem);
  display: grid;
  align-items: center;
  animation: screen-rise var(--ease-spring) both;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 24%),
    linear-gradient(135deg, rgba(28, 76, 128, 0.58), rgba(6, 17, 31, 0.92));
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(18px);
}

.panel::before {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, transparent 0, rgba(151, 198, 255, 0.06) 50%, transparent 100%),
    linear-gradient(transparent 0, rgba(151, 198, 255, 0.05) 50%, transparent 100%);
  background-size: 100% 1px, 1px 100%;
  opacity: 0.4;
  content: "";
  pointer-events: none;
}

.hero-panel,
.test-panel,
.result-panel {
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

.hero-panel {
  display: grid;
  gap: 1.25rem;
  min-height: min(44rem, calc(100vh - 6rem));
  align-content: center;
  padding-block: clamp(2.5rem, 10vh, 5rem);
}

.hero-panel::after {
  position: absolute;
  top: -7rem;
  right: -3rem;
  width: min(26rem, 46vw);
  height: min(26rem, 46vw);
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 30%, rgba(154, 216, 255, 0.66), rgba(92, 180, 255, 0.08) 42%, transparent 72%);
  opacity: 0.88;
  content: "";
  pointer-events: none;
}

.eyebrow,
.badge,
.question-card__dimension,
.dimension-level {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow {
  gap: 0.55rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid rgba(154, 216, 255, 0.34);
  background: rgba(8, 24, 46, 0.6);
  color: var(--accent-warm);
  font-size: 0.76rem;
  font-weight: 700;
}

.eyebrow::before {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: linear-gradient(180deg, #c2e7ff, var(--accent));
  box-shadow: 0 0 0 0.35rem rgba(92, 180, 255, 0.12);
  content: "";
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 11ch;
  font-size: clamp(2.8rem, 7vw, 5.6rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.hero-copy {
  max-width: 40rem;
  color: var(--text-soft);
  font-size: clamp(1.02rem, 2vw, 1.2rem);
}

.primary-button,
.secondary-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3.5rem;
  padding: 0.9rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition:
    transform var(--ease-out),
    box-shadow var(--ease-out),
    background-color var(--ease-out),
    border-color var(--ease-out);
}

.primary-button {
  color: #041321;
  background: linear-gradient(135deg, #d3efff 0%, #79c9ff 45%, #3f9eff 100%);
  box-shadow: 0 12px 30px rgba(31, 123, 214, 0.32);
}

.secondary-button {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(8, 25, 47, 0.72);
}

.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
}

.primary-button:hover {
  box-shadow: 0 16px 36px rgba(31, 123, 214, 0.36);
}

.primary-button:disabled {
  cursor: not-allowed;
  color: rgba(4, 19, 33, 0.5);
  background: linear-gradient(135deg, rgba(211, 239, 255, 0.52), rgba(63, 158, 255, 0.52));
  box-shadow: none;
  transform: none;
}

.secondary-button:hover {
  background: rgba(13, 34, 62, 0.92);
}

.primary-button:focus-visible,
.secondary-button:focus-visible,
.option-row:focus-within {
  outline: 2px solid var(--accent-warm);
  outline-offset: 4px;
}

.test-panel,
.result-panel {
  display: grid;
  gap: 1.35rem;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.progress {
  position: relative;
  flex: 1;
  min-height: 0.9rem;
  overflow: hidden;
  border: 1px solid rgba(151, 198, 255, 0.18);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent),
    rgba(7, 22, 42, 0.74);
}

.progress > span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: inherit;
  background:
    linear-gradient(90deg, rgba(76, 168, 255, 0.92), rgba(165, 225, 255, 0.92)),
    var(--accent);
  box-shadow: 0 0 18px rgba(92, 180, 255, 0.42);
  transition: width var(--ease-spring);
}

.progress-text {
  min-width: 4.75rem;
  color: var(--text-soft);
  font-size: 0.95rem;
  text-align: right;
}

.screen-title {
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  letter-spacing: -0.03em;
}

.question-list,
.dimension-list,
.near-result-list {
  display: grid;
  gap: 1rem;
}

.dimension-list,
.near-result-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.question-card,
.dimension-item,
.near-result-item {
  border: 1px solid rgba(151, 198, 255, 0.18);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 28%),
    rgba(8, 22, 40, 0.84);
  box-shadow: var(--shadow-md);
}

.question-card {
  display: grid;
  gap: 1rem;
  padding: 1.2rem;
  transform: translateY(0);
  transition:
    transform var(--ease-out),
    border-color var(--ease-out),
    box-shadow var(--ease-out);
}

.question-card:hover {
  transform: translateY(-2px);
  border-color: rgba(151, 198, 255, 0.28);
}

.question-card__meta,
.dimension-item__head,
.near-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.badge,
.question-card__dimension,
.dimension-level {
  padding: 0.35rem 0.7rem;
  font-size: 0.74rem;
  font-weight: 700;
}

.badge {
  color: var(--accent-warm);
  background: rgba(92, 180, 255, 0.14);
}

.question-card__dimension,
.dimension-level {
  color: var(--text-soft);
  background: rgba(255, 255, 255, 0.06);
}

.question-card__title {
  font-size: clamp(1.08rem, 2vw, 1.28rem);
  line-height: 1.45;
}

.question-card__options {
  display: grid;
  gap: 0.8rem;
}

.option-row {
  display: grid;
  grid-template-columns: auto auto 1fr;
  align-items: center;
  gap: 0.85rem;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(151, 198, 255, 0.16);
  border-radius: var(--radius-md);
  background: rgba(10, 28, 50, 0.62);
  transition:
    transform var(--ease-out),
    border-color var(--ease-out),
    background-color var(--ease-out),
    box-shadow var(--ease-out);
}

.option-row:hover {
  transform: translateX(4px);
  border-color: rgba(151, 198, 255, 0.32);
  background: rgba(13, 34, 62, 0.84);
}

.option-row input {
  width: 1rem;
  height: 1rem;
  margin: 0;
  accent-color: var(--accent);
}

.option-row.is-selected,
.option-row:has(input:checked) {
  border-color: rgba(154, 216, 255, 0.58);
  background: linear-gradient(135deg, rgba(31, 97, 170, 0.42), rgba(10, 28, 50, 0.92));
  box-shadow: 0 14px 30px rgba(8, 22, 40, 0.34);
}

.option-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-warm);
  font-weight: 800;
}

.option-row input:checked + .option-code {
  background: linear-gradient(180deg, #d3efff, #67beff);
  color: #08203a;
}

.option-text {
  color: var(--text-soft);
}

.option-row.is-selected .option-text,
.option-row:has(input:checked) .option-text {
  color: var(--text);
}

#submit-button,
#restart-button {
  justify-self: start;
}

.result-panel {
  align-content: start;
}

#result-mount {
  display: grid;
  gap: 1rem;
}

.result-hero,
.result-section {
  display: grid;
  gap: 0.9rem;
  padding: clamp(1.2rem, 2vw, 1.6rem);
  border: 1px solid rgba(151, 198, 255, 0.18);
  border-radius: var(--radius-lg);
  background: rgba(7, 20, 37, 0.72);
}

.result-hero {
  background:
    radial-gradient(circle at top right, rgba(154, 216, 255, 0.16), transparent 34%),
    linear-gradient(135deg, rgba(27, 79, 136, 0.54), rgba(8, 22, 40, 0.9));
}

.result-title {
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.result-anchor {
  color: var(--accent-warm);
  font-weight: 700;
}

.result-kicker {
  color: var(--text);
  font-size: 1.06rem;
}

.result-summary,
.dimension-copy,
.dimension-description,
.near-result-item span {
  color: var(--text-soft);
}

.result-section__title {
  font-size: 1.08rem;
  color: var(--accent-warm);
}

.dimension-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.dimension-item,
.near-result-item {
  padding: 1rem;
}

.dimension-item {
  display: grid;
  gap: 0.6rem;
}

.dimension-name {
  font-weight: 700;
}

.dimension-copy {
  font-size: 0.93rem;
}

.near-result-item strong {
  font-size: 1rem;
}

.near-result-item span {
  text-align: right;
}

@keyframes screen-rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 780px) {
  .app-shell {
    width: min(calc(100% - 1rem), var(--max-width));
    padding-top: 0.5rem;
    padding-bottom: 1.5rem;
  }

  .screen {
    min-height: auto;
  }

  .hero-panel,
  .test-panel,
  .result-panel {
    border-radius: 26px;
    padding: 1.2rem;
  }

  .hero-panel {
    min-height: calc(100vh - 2rem);
    align-content: end;
    padding-block: 1.5rem;
  }

  .hero-panel::after {
    top: -3.5rem;
    right: -4rem;
    width: 15rem;
    height: 15rem;
  }

  h1 {
    max-width: none;
    font-size: clamp(2.35rem, 13vw, 3.5rem);
  }

  .topbar,
  .question-card__meta,
  .dimension-item__head,
  .near-result-item {
    align-items: flex-start;
    flex-direction: column;
  }

  .progress-text,
  .near-result-item span {
    text-align: left;
  }

  .option-row {
    grid-template-columns: auto auto 1fr;
    padding: 0.85rem;
  }

  .dimension-list {
    grid-template-columns: 1fr;
  }

  #submit-button,
  #restart-button {
    width: 100%;
    justify-self: stretch;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0ms !important;
    transition-delay: 0ms !important;
  }
}