/* quiz.css — AI Diagnosis Quiz for tokuten-v3 */

.quiz-page,
.quiz-result-page {
  --quiz-bg: #07131B;
  --quiz-text: #FAFAF7;
  --quiz-text-sub: rgba(250,250,247,0.6);
  --quiz-text-mute: rgba(250,250,247,0.28);
  --quiz-brand: #0d9488;
  --quiz-brand-light: #7FD4D8;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

.quiz-page {
  background: var(--quiz-bg);
  color: var(--quiz-text);
  min-height: 100vh;
  overflow: hidden;
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Background */
.quiz-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 60% at 30% 20%, rgba(13,148,136,0.22) 0%, transparent 55%),
    radial-gradient(ellipse 60% 60% at 80% 80%, rgba(127,212,216,0.14) 0%, transparent 55%),
    linear-gradient(180deg, #07131B 0%, #050F16 60%, #030A10 100%);
}
.quiz-bg__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.quiz-bg__vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 120% 100% at 50% 50%, transparent 50%, rgba(0,0,0,0.55) 100%);
}

/* Quiz shell */
.quiz {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

/* Header */
.quiz__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  padding: 28px clamp(20px, 4vw, 48px);
  border-bottom: 1px solid rgba(250,250,247,0.08);
}
.quiz__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: rgba(250,250,247,0.45);
  text-decoration: none;
  transition: color 0.24s;
  white-space: nowrap;
}
.quiz__back:hover { color: var(--quiz-brand-light); }
.quiz__progress {
  display: flex;
  align-items: center;
  gap: 18px;
  flex: 1;
  max-width: 480px;
  justify-content: flex-end;
}
.quiz__progress-meta {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.28em;
  font-variant-numeric: tabular-nums;
  color: rgba(250,250,247,0.35);
  white-space: nowrap;
}
.quiz__progress-current {
  color: var(--quiz-brand-light);
  font-weight: 700;
}
.quiz__progress-bar {
  flex: 1;
  height: 2px;
  background: rgba(250,250,247,0.1);
  position: relative;
  overflow: hidden;
}
.quiz__progress-bar-fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--quiz-brand), var(--quiz-brand-light));
  width: 0;
  transition: width 620ms var(--ease-out-expo);
}

/* Stage */
.quiz__stage {
  display: grid;
  place-items: center;
  padding: clamp(32px, 5vw, 64px) clamp(24px, 6vw, 80px);
}
.quiz__question {
  max-width: 960px;
  width: 100%;
  text-align: left;
  transition: opacity 480ms var(--ease-out-expo), transform 480ms var(--ease-out-expo);
  will-change: opacity, transform;
}
.quiz__question.is-out { opacity: 0; transform: translateY(-24px); }
.quiz__question.is-in  { opacity: 1; transform: translateY(0); }

.quiz__eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--quiz-brand-light);
  text-transform: uppercase;
  margin-bottom: clamp(16px, 2vw, 24px);
  font-variant-numeric: tabular-nums;
}
.quiz__title {
  font-family: 'Noto Sans JP', 'Inter', sans-serif;
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 50px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--quiz-text);
  margin-bottom: clamp(28px, 4vw, 52px);
}

/* Options */
.quiz__options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(10px, 1.3vw, 16px);
}
@media (max-width: 720px) { .quiz__options { grid-template-columns: 1fr; } }

.quiz__option {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  align-items: center;
  padding: clamp(14px, 1.6vw, 22px) clamp(16px, 2vw, 26px);
  border: 1px solid rgba(250,250,247,0.14);
  background: rgba(250,250,247,0.02);
  text-align: left;
  color: var(--quiz-text);
  transition: border-color 320ms var(--ease-out-expo), background 320ms var(--ease-out-expo), transform 320ms var(--ease-out-expo);
  cursor: pointer;
  font: inherit;
}
.quiz__option:hover {
  border-color: var(--quiz-brand-light);
  background: rgba(127,212,216,0.06);
  transform: translateX(4px);
}
.quiz__option.is-selected {
  border-color: var(--quiz-brand-light);
  background: rgba(127,212,216,0.12);
  transform: translateX(6px);
}
.quiz__option-num {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--quiz-brand-light);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(127,212,216,0.28);
  border-radius: 50%;
  flex-shrink: 0;
}
.quiz__option.is-selected .quiz__option-num {
  background: var(--quiz-brand-light);
  color: var(--quiz-bg);
  border-color: var(--quiz-brand-light);
}
.quiz__option-body {
  font-family: 'Noto Sans JP', 'Inter', sans-serif;
  font-size: clamp(13px, 1.1vw, 16px);
  line-height: 1.5;
  color: var(--quiz-text);
  font-weight: 500;
}

/* Footer */
.quiz__footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 24px clamp(20px, 4vw, 48px);
  border-top: 1px solid rgba(250,250,247,0.08);
  flex-wrap: wrap;
}
.quiz__prev {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  color: rgba(250,250,247,0.45);
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  letter-spacing: 0.2em;
  border: 1px solid rgba(250,250,247,0.14);
  background: transparent;
  transition: color 240ms, border-color 240ms, opacity 240ms;
  cursor: pointer;
}
.quiz__prev:hover:not([disabled]) {
  color: var(--quiz-brand-light);
  border-color: var(--quiz-brand-light);
}
.quiz__prev[disabled] { opacity: 0.3; cursor: not-allowed; }
.quiz__hint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(250,250,247,0.22);
}
.quiz__hint kbd {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  padding: 4px 8px;
  background: rgba(250,250,247,0.05);
  border: 1px solid rgba(250,250,247,0.12);
  border-radius: 3px;
  color: rgba(250,250,247,0.35);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  min-width: 22px;
  text-align: center;
}
@media (max-width: 480px) { .quiz__hint { display: none; } }

/* Completion overlay */
.quiz-result {
  position: fixed;
  inset: 0;
  background: var(--quiz-bg);
  display: grid;
  place-items: center;
  z-index: 100;
  opacity: 0;
  transition: opacity 620ms var(--ease-out-expo);
}
.quiz-result.is-visible { opacity: 1; }
.quiz-result__inner {
  text-align: center;
  color: var(--quiz-text);
  padding: 40px;
}
.quiz-result__spinner {
  margin-bottom: clamp(32px, 4vw, 48px);
  display: inline-block;
  animation: resultPulse 2.6s ease-in-out infinite;
}
@keyframes resultPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.04); }
}
.quiz-result__arc {
  transition: stroke-dashoffset 1.8s var(--ease-out-expo);
}
.quiz-result.is-visible .quiz-result__arc { stroke-dashoffset: 0; }
.quiz-result__title {
  font-family: 'Noto Sans JP', 'Inter', sans-serif;
  font-weight: 900;
  font-size: clamp(22px, 3vw, 40px);
  line-height: 1.35;
  margin-bottom: 20px;
}
.quiz-result__note {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  letter-spacing: 0.24em;
  color: rgba(250,250,247,0.45);
  text-transform: uppercase;
}

/* =====================
   Result Page
===================== */
.quiz-result-page {
  background: var(--quiz-bg);
  color: var(--quiz-text);
  min-height: 100vh;
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  -webkit-font-smoothing: antialiased;
}
.result-page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.result-page__header {
  display: flex;
  align-items: center;
  padding: 24px clamp(20px, 4vw, 48px);
  border-bottom: 1px solid rgba(250,250,247,0.08);
}
.result-page__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: rgba(250,250,247,0.45);
  text-decoration: none;
  transition: color 0.24s;
}
.result-page__back:hover { color: var(--quiz-brand-light); }
.result-page__body {
  flex: 1;
  display: grid;
  place-items: center;
  padding: clamp(40px, 6vw, 80px) clamp(24px, 5vw, 48px);
}
.result-card {
  max-width: 680px;
  width: 100%;
  text-align: center;
}
.result-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  letter-spacing: 0.5em;
  color: var(--quiz-brand-light);
  text-transform: uppercase;
  margin-bottom: 28px;
}
.result-card__badge::before,
.result-card__badge::after {
  content: '';
  display: block;
  width: 28px;
  height: 1px;
  background: rgba(127,212,216,0.35);
}
.result-card__name {
  font-family: 'Noto Sans JP', 'Inter', sans-serif;
  font-weight: 900;
  font-size: clamp(30px, 5vw, 60px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  background: linear-gradient(135deg, #fff 30%, var(--quiz-brand-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.result-card__headline {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(13px, 1.3vw, 17px);
  font-weight: 700;
  color: rgba(250,250,247,0.65);
  margin-bottom: 28px;
  letter-spacing: 0.04em;
}
.result-card__divider {
  width: 40px;
  height: 1px;
  background: rgba(127,212,216,0.35);
  margin: 0 auto 28px;
}
.result-card__desc {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: clamp(14px, 1.2vw, 16px);
  line-height: 1.85;
  color: rgba(250,250,247,0.72);
  margin-bottom: 48px;
}
.result-card__actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}
.result-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 15px 28px;
  font-family: 'Inter', 'Noto Sans JP', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: all 0.22s;
  cursor: pointer;
  border: none;
}
.result-btn--primary {
  background: var(--quiz-brand);
  color: #fff;
}
.result-btn--primary:hover {
  background: #0a7a71;
  transform: translateY(-2px);
  color: #fff;
}
.result-btn--ghost {
  background: transparent;
  color: rgba(250,250,247,0.55);
  border: 1px solid rgba(250,250,247,0.18);
}
.result-btn--ghost:hover {
  color: var(--quiz-brand-light);
  border-color: var(--quiz-brand-light);
}