:root {
  color-scheme: light;
  --ink: #172033;
  --muted: #667085;
  --line: #dbe3f0;
  --paper: #ffffff;
  --wash: #f4f7ff;
  --blue: #2f67ed;
  --blue-dark: #1f4fc7;
  --violet: #7559d9;
  --app-green: #4caf50;
  --app-purple: #9c27b0;
  --radius-lg: 32px;
  --radius-md: 20px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 5%, rgba(47, 103, 237, .12), transparent 28rem),
    radial-gradient(circle at 90% 20%, rgba(117, 89, 217, .10), transparent 30rem),
    var(--wash);
  overflow-x: hidden;
}
button, a, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: inherit; }
img, svg { max-inline-size: 100%; }
p, h1, h2, h3 { overflow-wrap: anywhere; }

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-block-size: 72px;
  padding: 12px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, .82);
  border-block-end: 1px solid rgba(219, 227, 240, .82);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand span {
  display: grid;
  place-items: center;
  inline-size: 38px;
  block-size: 38px;
  color: #fff;
  font-weight: 800;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  box-shadow: 0 10px 24px rgba(47, 103, 237, .24);
}
.header-actions { display: flex; align-items: center; gap: 12px; min-inline-size: 0; }
.language-picker { position: relative; }
.language-picker summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-block-size: 42px;
  padding: 8px 12px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  list-style: none;
  cursor: pointer;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
}
.language-picker summary::-webkit-details-marker { display: none; }
.language-chevron { color: var(--muted); transition: transform .18s ease; }
.language-picker[open] .language-chevron { transform: rotate(180deg); }
.language-flag { font-size: 18px; line-height: 1; }
.language-nav {
  position: absolute;
  inset-block-start: calc(100% + 8px);
  inset-inline-end: 0;
  z-index: 40;
  display: grid;
  gap: 2px;
  inline-size: 230px;
  max-block-size: min(66vh, 520px);
  padding: 8px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, .98);
  box-shadow: 0 22px 60px rgba(28, 45, 86, .18);
}
.language-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
  border-radius: 11px;
}
.language-nav a[aria-current="page"] { color: var(--blue); background: #eaf0ff; }
.language-nav a:hover { color: var(--ink); background: var(--wash); }
.icon-button {
  flex: 0 0 auto;
  inline-size: 42px;
  block-size: 42px;
  color: var(--blue);
  font-size: 22px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--paper);
}

main { inline-size: min(1180px, 100%); margin-inline: auto; }
.screen { padding: clamp(46px, 8vw, 104px) clamp(18px, 5vw, 68px); }
.screen[hidden] { display: none !important; }
.hero-screen { min-block-size: calc(100vh - 72px); display: grid; align-content: center; gap: 42px; }
.hero-copy { max-inline-size: 780px; }
.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
h1 { margin: 0; font-size: clamp(42px, 7vw, 82px); line-height: 1.02; letter-spacing: -.055em; }
.lead { max-inline-size: 720px; margin: 24px 0 0; color: var(--muted); font-size: clamp(17px, 2vw, 21px); line-height: 1.75; }
.test-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .9fr); gap: 20px; }
.test-card {
  display: grid;
  align-content: space-between;
  min-block-size: 290px;
  padding: clamp(24px, 4vw, 42px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, .88);
  box-shadow: 0 24px 70px rgba(28, 45, 86, .09);
}
.test-card-primary { color: #fff; border-color: transparent; background: linear-gradient(145deg, #295fe2, #684fd0); }
.card-index { margin: 0; color: inherit; opacity: .75; font-weight: 700; }
.test-card h2 { margin: 42px 0 12px; font-size: clamp(27px, 4vw, 44px); line-height: 1.1; }
.test-card p:not(.card-index) { margin: 0 0 26px; color: var(--muted); line-height: 1.65; }
.test-card-primary p:not(.card-index) { color: rgba(255,255,255,.82); }
.test-card button, .primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 52px;
  padding: 13px 22px;
  color: #fff;
  font-weight: 750;
  text-decoration: none;
  border: 0;
  border-radius: 16px;
  background: var(--blue);
}
.test-card-primary button { color: var(--blue-dark); background: #fff; }
.app-store { inline-size: fit-content; color: var(--blue); font-weight: 700; }
.manual-share { inline-size: min(100%, 440px); padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; }
.store-guide {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(11, 18, 32, .78);
  backdrop-filter: blur(14px);
}
.store-guide[hidden] { display: none; }
.store-guide-card {
  position: relative;
  inline-size: min(100%, 420px);
  padding: 72px 28px 28px;
  text-align: center;
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .3);
}
.store-guide-card p { margin: 0 0 24px; font-size: 18px; font-weight: 700; line-height: 1.65; }
.store-guide-card button { inline-size: 100%; min-block-size: 50px; color: #fff; font-weight: 750; border: 0; border-radius: 15px; background: var(--blue); }
.store-guide-corner { position: absolute; inset-block-start: 18px; inset-inline-end: 20px; display: flex; align-items: center; gap: 8px; color: var(--blue); font-size: 22px; }
.store-guide-corner b { font-size: 30px; transform: rotate(-8deg); }

.panel-screen { min-block-size: calc(100vh - 72px); display: grid; place-items: center; }
.panel, .test-panel, .result-panel {
  inline-size: min(100%, 760px);
  padding: clamp(26px, 6vw, 58px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,.94);
  box-shadow: 0 30px 90px rgba(28, 45, 86, .12);
}
.panel h2, .test-panel h2, .result-panel h2 { margin: 0 0 28px; font-size: clamp(28px, 5vw, 48px); }
.choice-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-block: 28px; }
.choice-list button {
  min-block-size: 76px;
  padding: 12px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #fff;
}
.choice-list button[aria-pressed="true"] { color: var(--blue); border-color: var(--blue); background: #edf3ff; }
.invite-name-panel input {
  inline-size: 100%;
  min-block-size: 58px;
  margin-block: 4px 8px;
  padding: 14px 16px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}
.invite-name-panel .primary-action { inline-size: 100%; }
.invite-status-panel p { margin-block: 0 28px; color: var(--muted); line-height: 1.7; }
.primary-action:disabled { cursor: not-allowed; opacity: .45; }
.test-panel {
  inline-size: min(100%, 520px);
  padding: 24px 15px 32px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
[data-screen="test"].panel-screen { background: #f5f5f5; }
.app-progress-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  margin-block-end: 8px;
}
.progress-count { color: rgba(0,0,0,.8); font-size: 16px; font-weight: 700; white-space: nowrap; }
.progress-track { block-size: 5px; overflow: hidden; border-radius: 999px; background: #e0e0e0; }
.progress-track span { display: block; inline-size: 0; block-size: 100%; background: var(--app-green); transition: inline-size .3s ease; }
.progress-calibration { color: var(--app-green); font-size: 16px; font-weight: 700; white-space: nowrap; }
.test-panel .question-text {
  min-block-size: 60px;
  margin: 0;
  padding: 8px 5px;
  color: rgba(0,0,0,.82);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.55;
  letter-spacing: 0;
}
.option-list { display: grid; gap: 18px; padding-block: 12px; }
.option-card {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  min-block-size: 52px;
  padding: 12px 15px;
  color: rgba(0,0,0,.8);
  font-size: 18px;
  line-height: 1.45;
  border: 1px solid #777;
  border-radius: 8px;
  background: #fff;
}
.option-letter { font-size: 18px; text-align: center; }
.option-a { color: var(--app-green); }
.option-b { color: var(--app-purple); }
.answer-selector {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 30px;
  align-items: center;
  gap: 10px;
  min-block-size: 80px;
  padding: 15px 10px;
}
.selector-pole { font-size: 20px; font-weight: 700; text-align: center; }
.selector-a { color: var(--app-green); }
.selector-b { color: var(--app-purple); }
.rating-dots { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-inline-size: 0; }
.rating-dot {
  position: relative;
  flex: 0 0 auto;
  padding: 0;
  color: #fff;
  border: 1px solid #999;
  border-radius: 50%;
  background: #fff;
  transition: transform .18s ease, background-color .18s ease, border-color .18s ease;
}
.rating-dot:hover { transform: scale(1.05); }
.rating-dot:active { transform: scale(.92); }
.rating-dot-xl { inline-size: 40px; block-size: 40px; }
.rating-dot-lg { inline-size: 32px; block-size: 32px; }
.rating-dot-md { inline-size: 25px; block-size: 25px; }
.rating-dot-a[aria-pressed="true"] { border-color: var(--app-green); background: var(--app-green); }
.rating-dot-b[aria-pressed="true"] { border-color: var(--app-purple); background: var(--app-purple); }
.rating-dot-neutral[aria-pressed="true"] { border-color: #666; background: #666; }
.rating-dot[aria-pressed="true"]::after {
  content: '✓';
  position: absolute;
  inset: 50% auto auto 50%;
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  transform: translate(-50%, -54%);
}
.sr-only {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.test-actions { margin-block-start: 28px; }
.test-actions button { padding: 10px 0; color: var(--blue); border: 0; background: transparent; }
.status-message { min-block-size: 24px; color: #b42318; }
.result-panel { text-align: center; }
.result-panel [data-result-type] { margin-block: 10px; color: var(--blue); font-size: clamp(62px, 12vw, 108px); }
.result-panel [data-result-description] { color: var(--muted); line-height: 1.7; text-align: start; }
.dimension-results { display: grid; gap: 10px; margin-block: 28px; }
.dimension-row { display: grid; grid-template-columns: 30px 1fr 30px; align-items: center; gap: 10px; }
.dimension-row span { block-size: 8px; overflow: hidden; border-radius: 999px; background: #e8edf7; }
.dimension-row i { display: block; block-size: 100%; background: linear-gradient(90deg, var(--blue), var(--violet)); }
.privacy-note { color: var(--muted); font-size: 14px; }
.result-submit-status { min-block-size: 24px; color: var(--blue); font-weight: 700; }

.seo-content { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; padding: 34px clamp(18px, 5vw, 68px) 90px; }
.seo-content article { padding: 28px; border-block-start: 1px solid var(--line); }
.seo-content h2 { font-size: 21px; }
.seo-content p { color: var(--muted); line-height: 1.75; }
footer { padding: 24px; color: var(--muted); text-align: center; border-block-start: 1px solid var(--line); }

:focus-visible { outline: 3px solid rgba(47,103,237,.42); outline-offset: 3px; }
[dir="rtl"] .eyebrow { letter-spacing: 0; }
[dir="rtl"] .dimension-row { direction: ltr; }

@media (max-width: 720px) {
  .site-header { min-block-size: 64px; padding-inline: 14px; }
  .brand strong { display: none; }
  .language-picker summary { max-inline-size: 48vw; }
  .language-picker summary > span:nth-child(2) { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .language-nav { inline-size: min(78vw, 280px); max-block-size: 62vh; }
  .store-guide { place-items: start center; padding-block-start: max(90px, env(safe-area-inset-top)); }
  .hero-screen { min-block-size: calc(100vh - 64px); padding-block: 44px; }
  .test-grid, .seo-content { grid-template-columns: 1fr; }
  .test-card { min-block-size: 250px; border-radius: 24px; }
  .choice-list { grid-template-columns: 1fr; }
  [data-screen="test"].panel-screen { align-items: start; padding-block: 22px 36px; }
  .test-panel { padding: 12px 0 24px; }
  .rating-dots { gap: 5px; }
  .answer-selector { gap: 4px; padding-inline: 0; }
  .panel, .result-panel { border-radius: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; animation-iteration-count: 1 !important; }
}