:root {
  --u6t-navy: #071f4f;
  --u6t-navy-2: #0c2f64;
  --u6t-green: #14785f;
  --u6t-coral: #d5444c;
  --u6t-gold: #d9a441;
  --u6t-ink: #162235;
  --u6t-muted: #526176;
  --u6t-soft: #eef8f5;
  --u6t-blue-soft: #edf3fc;
  --u6t-border: #d8e4e0;
  --u6t-shadow: 0 16px 38px rgba(7, 31, 79, 0.12);
}

* {
  box-sizing: border-box;
}

body.u6t-page {
  overflow-x: hidden;
  background: #f4f7fb;
  color: var(--u6t-ink);
}

.u6t-hero {
  position: relative;
  min-height: clamp(520px, 72vh, 720px);
  display: grid;
  align-items: end;
  overflow: hidden;
  padding: 5.5rem 1.25rem 2.2rem;
  color: #fff;
}

.u6t-hero img,
.u6t-hero-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.u6t-hero img {
  object-fit: cover;
  object-position: center;
}

.u6t-hero-shade {
  background:
    linear-gradient(110deg, rgba(5, 18, 39, .96) 0%, rgba(5, 18, 39, .82) 44%, rgba(5, 18, 39, .28) 74%, rgba(5, 18, 39, .06) 100%),
    linear-gradient(0deg, rgba(20, 120, 95, .25), transparent 48%);
}

.u6t-hero-content {
  position: relative;
  z-index: 1;
  width: min(1180px, 100%);
  margin: 0 auto;
}

.u6t-eyebrow,
.u6t-kicker {
  letter-spacing: 0;
  text-transform: uppercase;
}

.u6t-eyebrow {
  display: inline-flex;
  width: fit-content;
  margin: 0 0 .85rem;
  border-radius: 999px;
  padding: .45rem .8rem;
  background: rgba(255, 255, 255, .94);
  color: var(--u6t-navy);
  font-weight: 950;
}

.u6t-hero h1 {
  max-width: 860px;
  margin: 0 0 1rem;
  color: #fff;
  font-size: clamp(2.35rem, 6vw, 5rem);
  line-height: .98;
  letter-spacing: 0;
}

.u6t-hero p:not(.u6t-eyebrow) {
  max-width: 720px;
  margin: 0;
  color: #f8fbff;
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.58;
}

.u6t-meta,
.u6t-actions,
.u6t-toolbar,
.u6t-delivery {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  align-items: center;
}

.u6t-meta {
  margin: 1.25rem 0;
}

.u6t-meta span {
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: 999px;
  padding: .45rem .7rem;
  background: rgba(255, 255, 255, .12);
  color: #fff;
  font-weight: 850;
  line-height: 1.15;
}

.u6t-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  border: 0;
  border-radius: 999px;
  padding: .72rem 1rem;
  color: var(--u6t-navy);
  background: #fff;
  font: inherit;
  font-weight: 950;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(7, 31, 79, .08);
}

.u6t-button.primary {
  background: linear-gradient(135deg, var(--u6t-coral), #a82635);
  color: #fff;
}

.u6t-button.navy {
  background: var(--u6t-navy);
  color: #fff;
}

.u6t-button.soft {
  background: var(--u6t-blue-soft);
}

.u6t-button.ghost {
  border: 1px solid var(--u6t-border);
  background: #fff;
  box-shadow: none;
}

.u6t-button.light {
  background: rgba(255, 255, 255, .94);
}

.u6t-button:disabled {
  cursor: not-allowed;
  opacity: .55;
}

.u6t-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.u6t-panel {
  margin-bottom: 1.25rem;
  overflow: hidden;
  border: 1px solid var(--u6t-border);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--u6t-shadow);
}

.u6t-panel-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.2rem;
  border-bottom: 1px solid var(--u6t-border);
  background: linear-gradient(135deg, #ffffff, #eef8f5);
}

.u6t-kicker {
  margin: 0 0 .35rem;
  color: var(--u6t-coral);
  font-size: .77rem;
  font-weight: 950;
}

.u6t-panel-head h2 {
  margin: 0;
  color: var(--u6t-navy);
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.u6t-panel-head p:not(.u6t-kicker) {
  max-width: 820px;
  margin: .45rem 0 0;
  color: var(--u6t-muted);
  line-height: 1.55;
}

.u6t-map {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: .75rem;
  padding: 1.2rem;
}

.u6t-map article {
  min-width: 0;
  border: 1px solid var(--u6t-border);
  border-radius: 8px;
  padding: .9rem;
  background: #f8fbfd;
}

.u6t-map strong {
  display: block;
  margin-bottom: .35rem;
  color: var(--u6t-navy);
  font-size: 1.02rem;
}

.u6t-map span {
  color: var(--u6t-muted);
  line-height: 1.45;
}

.u6t-score-card {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: .62rem .8rem;
  background: var(--u6t-blue-soft);
  color: var(--u6t-navy);
  font-weight: 950;
  white-space: nowrap;
}

.u6t-progress {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .85rem;
  align-items: center;
  padding: 1rem 1.2rem 0;
}

.u6t-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #dfeaf2;
}

.u6t-track span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--u6t-green), var(--u6t-gold));
  transition: width 180ms ease;
}

.u6t-question-list {
  display: grid;
  gap: .9rem;
  padding: 1.2rem;
}

.u6t-question-card {
  min-width: 0;
  border: 1px solid var(--u6t-border);
  border-radius: 8px;
  padding: 1rem;
  background: #fff;
}

.u6t-question-card.is-correct {
  border-color: rgba(22, 163, 74, .55);
  background: #f0fdf4;
}

.u6t-question-card.is-review {
  border-color: rgba(220, 38, 38, .45);
  background: #fff7f7;
}

.u6t-question-top {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .75rem;
  align-items: start;
}

.u6t-number {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--u6t-navy);
  color: #fff;
  font-weight: 950;
}

.u6t-context {
  margin: 0 0 .25rem;
  color: var(--u6t-coral);
  font-size: .8rem;
  font-weight: 950;
  text-transform: uppercase;
}

.u6t-sentence {
  margin: 0;
  color: var(--u6t-ink);
  font-size: 1.08rem;
  font-weight: 850;
  line-height: 1.55;
}

.u6t-blank {
  display: inline-flex;
  min-width: 86px;
  justify-content: center;
  border-bottom: 3px solid var(--u6t-gold);
  color: var(--u6t-navy);
}

.u6t-options {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .7rem;
  margin-top: .9rem;
}

.u6t-option {
  min-width: 0;
  min-height: 56px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .6rem;
  align-items: center;
  border: 1px solid var(--u6t-border);
  border-radius: 8px;
  padding: .75rem;
  background: #fff;
  color: var(--u6t-ink);
  font-weight: 900;
  cursor: pointer;
}

.u6t-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.u6t-option:has(input:checked) {
  border-color: var(--u6t-green);
  background: var(--u6t-soft);
}

.u6t-letter {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--u6t-blue-soft);
  color: var(--u6t-navy);
  font-weight: 950;
}

.u6t-option:has(input:checked) .u6t-letter {
  background: var(--u6t-green);
  color: #fff;
}

.u6t-reason {
  min-height: 1px;
  margin-top: .8rem;
  color: var(--u6t-muted);
  font-weight: 800;
  line-height: 1.5;
}

.u6t-question-card:not(.is-correct):not(.is-review) .u6t-reason {
  display: none;
}

.u6t-toolbar {
  padding: 0 1.2rem 1.2rem;
}

.u6t-feedback,
.u6t-delivery-status {
  margin: 0 1.2rem 1.2rem;
  border: 1px solid var(--u6t-border);
  border-radius: 8px;
  padding: .85rem;
  background: #f8fbfd;
  color: var(--u6t-muted);
  font-weight: 850;
  line-height: 1.5;
}

.u6t-feedback.success,
.u6t-delivery-status.success {
  border-color: rgba(22, 163, 74, .55);
  background: #f0fdf4;
  color: #166534;
}

.u6t-feedback.error,
.u6t-delivery-status.error {
  border-color: rgba(220, 38, 38, .45);
  background: #fff7f7;
  color: #991b1b;
}

.u6t-delivery {
  justify-content: space-between;
  padding: 1.2rem;
}

.u6t-delivery-summary {
  display: grid;
  gap: .2rem;
}

.u6t-delivery-summary strong {
  color: var(--u6t-navy);
}

.u6t-delivery-summary span {
  color: var(--u6t-muted);
  font-weight: 800;
}

.u6t-delivery-status:empty {
  display: none;
}

@media (max-width: 920px) {
  .u6t-map,
  .u6t-options {
    grid-template-columns: 1fr 1fr;
  }

  .u6t-panel-head,
  .u6t-delivery {
    display: grid;
  }
}

@media (max-width: 640px) {
  .u6t-hero {
    min-height: 560px;
    padding: 5.25rem 1rem 1.4rem;
  }

  .u6t-hero h1 {
    font-size: clamp(2.1rem, 12vw, 3.3rem);
  }

  .u6t-shell {
    width: min(100% - 1rem, 1180px);
    padding-top: 1rem;
  }

  .u6t-map,
  .u6t-options,
  .u6t-progress,
  .u6t-question-top {
    grid-template-columns: minmax(0, 1fr);
  }

  .u6t-button,
  .u6t-actions .u6t-button,
  .u6t-toolbar .u6t-button,
  .u6t-delivery .u6t-button {
    width: 100%;
  }

  .u6t-score-card {
    width: 100%;
    text-align: center;
  }

  .u6t-meta span {
    max-width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}