/* ============================================================================
   style.css — メンズ清潔感スターター診断（クリーン・モダンデザイン）
   ============================================================================ */

/* ---- デザイン・システム変数 ---------------------------------------------- */
:root {
  /* 基本配色: 白・ニュートラルグレー・ディープネイビー */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-dark: #0f172a;
  --color-text: #334155;
  --color-muted: #64748b;
  --color-border: #e2e8f0;
  
  --color-primary: #1e293b;
  --color-primary-rgb: 30, 41, 59;
  --color-primary-light: #475569;
  
  /* 診断軸カラー (清潔感・コスメイメージ) */
  --color-skin: #0ea5e9;       /* 清潔感のあるクリアブルー */
  --color-skin-soft: #f0f9ff;
  --color-skin-ink: #0369a1;

  --color-cover: #d97706;      /* 肌に馴染むウォームベージュ（アンバー） */
  --color-cover-soft: #fffbeb;
  --color-cover-ink: #b45309;

  --color-frame: #475569;      /* キリッとしたスマートチャコール */
  --color-frame-soft: #f1f5f9;
  --color-frame-ink: #1e293b;

  --color-moist: #10b981;      /* みずみずしいエメラルドグリーン */
  --color-moist-soft: #ecfdf5;
  --color-moist-ink: #047857;

  /* 動的テーマカラー（初期値はプライマリ） */
  --theme-accent: var(--color-primary);
  --theme-accent-soft: rgba(var(--color-primary-rgb), 0.05);
  --theme-accent-ink: var(--color-dark);

  /* タイポグラフィ */
  --font-base: 'Zen Kaku Gothic New', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'Spline Sans Mono', monospace;
  --font-serif: 'Klee One', Georgia, serif;
}

/* ---- リセット & 基本設定 -------------------------------------------------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: radial-gradient(circle at 50% 0%, #f1f5f9 0%, #e2e8f0 100%);
  color: var(--color-text);
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* 全画面紙ざらつきオーバーレイ */
.grain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  opacity: 0.035;
  pointer-events: none;
  z-index: 9999;
}

/* ---- 共通コンポーネント ---------------------------------------------------- */
.app {
  max-width: 640px;
  margin: 0 auto;
  min-height: 100vh;
  background-color: var(--color-surface);
  box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.06), 0 15px 25px -10px rgba(15, 23, 42, 0.04);
  display: flex;
  flex-direction: column;
  border-left: 1px solid rgba(226, 232, 240, 0.8);
  border-right: 1px solid rgba(226, 232, 240, 0.8);
}

/* PRバー */
.pr-bar {
  background-color: #f1f5f9;
  border-bottom: 1px solid var(--color-border);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
}

.pr-tag {
  background-color: var(--color-muted);
  color: #fff;
  font-size: 9px;
  padding: 1px 4px;
  border-radius: 2px;
  font-weight: bold;
  letter-spacing: 0.05em;
}

.pr-text {
  color: var(--color-muted);
  letter-spacing: 0.02em;
}

.scroll {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* セクション基本 */
.screen {
  padding: 40px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.4s ease-out;
}

.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- トップ画面 ---------------------------------------------------------- */
.top-head {
  text-align: center;
  margin-bottom: 32px;
}

.kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 8px;
}

.top-title {
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--color-dark);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}

.top-title::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 10%;
  width: 80%;
  height: 1px;
  background-color: var(--color-dark);
}

.top-lead {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}

.top-lead em {
  font-style: normal;
  color: var(--color-dark);
  font-weight: 600;
  border-bottom: 1px dashed var(--color-muted);
}

.top-hero {
  margin-bottom: 32px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  aspect-ratio: 16 / 9;
}

.top-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.top-hero:hover img {
  transform: scale(1.03);
}

/* 凡例カード */
.specimens {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 32px;
}

.specimen-card-legend {
  border: 1px solid;
  border-radius: 12px;
  padding: 16px;
  background-color: #fff;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.01), 0 2px 4px -1px rgba(0, 0, 0, 0.01);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s;
}

.specimen-card-legend:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 20px -8px rgba(15, 23, 42, 0.08);
}

.specimen-num {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  display: block;
  margin-bottom: 4px;
}

.specimen-name {
  font-size: 13px;
  color: var(--color-dark);
  margin-bottom: 4px;
}

.specimen-sub {
  font-size: 11px;
  color: var(--color-muted);
  line-height: 1.4;
}

/* フォーム */
.top-form {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  margin-bottom: 32px;
}

.form-kicker {
  text-align: left;
  margin-bottom: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.field-label {
  font-size: 12px;
  color: var(--color-muted);
  font-weight: bold;
}

.field-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-base);
  font-size: 15px;
  color: var(--color-dark);
  outline: none;
  background-color: #fafafa;
  transition: border-color 0.2s ease, background-color 0.2s;
}

.field-input:focus {
  border-color: var(--color-primary-light);
  background-color: #fff;
}

/* ボタン */
.cta {
  width: 100%;
  padding: 18px 24px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-family: var(--font-base);
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(30, 41, 59, 0.15);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(30, 41, 59, 0.25);
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
}

.cta:active {
  transform: translateY(1px) scale(0.98);
}

.cta-arrow {
  font-family: var(--font-mono);
  transition: transform 0.2s ease;
}

.cta:hover .cta-arrow {
  transform: translateX(4px);
}

/* ---- クイズ画面 ---------------------------------------------------------- */
.quiz-header {
  margin-bottom: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.progress-container {
  width: 100%;
  margin-bottom: 24px;
}

.progress-text {
  font-size: 12px;
  color: var(--color-muted);
  margin-bottom: 6px;
  display: block;
}

.progress-bar-bg {
  width: 100%;
  height: 6px;
  background-color: #f1f5f9;
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  width: 0%;
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 8px rgba(var(--color-primary-rgb), 0.3);
}

.question-box {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.q-text {
  font-size: 18px;
  color: var(--color-dark);
  font-weight: 600;
  margin-bottom: 32px;
  line-height: 1.5;
}

.options-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.opt-btn {
  width: 100%;
  padding: 18px 24px;
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  font-family: var(--font-base);
  font-size: 14px;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 2px 4px rgba(15, 23, 42, 0.01);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.opt-btn:hover {
  border-color: var(--color-primary-light);
  background-color: #fafafa;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.05);
}

.opt-btn:active {
  transform: translateY(0);
}

.opt-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: bold;
  color: var(--color-muted);
  border: 1px solid var(--color-border);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background-color: #fff;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.opt-btn:hover .opt-num {
  border-color: var(--color-primary-light);
  color: #fff;
  background-color: var(--color-primary-light);
}

.opt-text {
  line-height: 1.4;
}

/* ---- 結果画面 ---------------------------------------------------------- */
.result-head {
  text-align: center;
  margin-bottom: 32px;
}

.result-kicker {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 8px;
}

.result-card {
  border: 1px solid rgba(var(--color-primary-rgb), 0.08);
  background: linear-gradient(180deg, var(--theme-accent-soft) 0%, rgba(255, 255, 255, 0.95) 100%);
  border-radius: 16px;
  padding: 32px 24px;
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 16px 36px -12px rgba(30, 41, 59, 0.04);
}

.result-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background-color: var(--theme-accent);
}

.res-type-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.res-no {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--theme-accent-ink);
  font-weight: bold;
}

.res-en {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--theme-accent-ink);
  letter-spacing: 0.1em;
  font-weight: 500;
}

.res-title-box {
  margin-bottom: 24px;
}

.res-sub {
  font-size: 12px;
  color: var(--theme-accent-ink);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.res-title {
  font-family: var(--font-serif);
  font-size: 26px;
  color: var(--color-dark);
  font-weight: 600;
}

.res-observe-box {
  background-color: #fff;
  border: 1px solid rgba(226, 232, 240, 0.6);
  border-left: 4px solid var(--theme-accent);
  border-radius: 8px;
  padding: 18px;
  margin-bottom: 24px;
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.7;
  box-shadow: 0 4px 12px -2px rgba(15, 23, 42, 0.02);
}

.res-sections {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.res-section-title {
  font-size: 13px;
  color: var(--theme-accent-ink);
  font-weight: bold;
  margin-bottom: 12px;
  letter-spacing: 0.05em;
  border-bottom: 1px solid rgba(var(--color-primary-rgb), 0.1);
  padding-bottom: 6px;
}

.res-lineages {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.res-lineages li {
  font-size: 13px;
  display: flex;
  flex-direction: column;
}

.res-lineages strong {
  color: var(--color-dark);
  font-size: 14px;
}

.line-note {
  color: var(--color-muted);
  font-size: 11px;
}

.hint-item {
  font-size: 13px;
  color: var(--color-text);
  margin-bottom: 12px;
  position: relative;
  padding-left: 14px;
}

.hint-item::before {
  content: "・";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--theme-accent);
  font-weight: bold;
}

/* スコアチャート */
.score-breakdown {
  margin-bottom: 40px;
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 24px;
}

.chart-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.chart-row:last-child {
  margin-bottom: 0;
}

.chart-label {
  font-size: 12px;
  color: var(--color-text);
  width: 140px;
  flex-shrink: 0;
  white-space: nowrap;
}

.chart-bar-bg {
  flex: 1;
  height: 8px;
  background-color: #f1f5f9;
  border-radius: 4px;
  overflow: hidden;
}

.chart-bar-fill {
  height: 100%;
  border-radius: 4px;
}

.chart-val {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  width: 36px;
  text-align: right;
}

/* アフィリエイト広告セクション */
.offers-section {
  margin-bottom: 40px;
}

.offers-head {
  text-align: center;
  margin-bottom: 24px;
}

.offers-title {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--color-dark);
  font-weight: bold;
}

.offers-subtitle {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: 4px;
}

.offers-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.offer-card {
  background-color: #fff;
  border: 1px solid rgba(226, 232, 240, 0.8);
  border-radius: 16px;
  padding: 24px;
  position: relative;
  box-shadow: 0 10px 25px -10px rgba(15, 23, 42, 0.02), 0 1px 3px rgba(0, 0, 0, 0.01);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease;
}

.offer-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 35px -10px rgba(15, 23, 42, 0.08);
}

.offer-badge {
  background-color: var(--theme-accent-soft);
  color: var(--theme-accent-ink);
  font-size: 10px;
  font-weight: bold;
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 12px;
  border: 1px solid rgba(var(--color-primary-rgb), 0.1);
}

.offer-num-badge {
  background-color: #f8fafc;
  color: var(--color-muted);
  font-size: 10px;
  font-weight: bold;
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 12px;
  border: 1px solid var(--color-border);
}

.offer-title {
  font-size: 16px;
  color: var(--color-dark);
  font-weight: 600;
  margin-bottom: 8px;
}

.offer-desc {
  font-size: 13px;
  color: var(--color-text);
  margin-bottom: 16px;
}

.offer-why {
  background-color: #f8fafc;
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 16px;
  font-size: 12px;
  border-left: 3px solid var(--theme-accent);
}

.offer-why strong {
  color: var(--color-dark);
  display: block;
  margin-bottom: 4px;
}

.offer-btn {
  width: 100%;
  padding: 16px 20px;
  border-radius: 10px;
  text-decoration: none;
  font-family: var(--font-base);
  font-size: 14px;
  font-weight: bold;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.03em;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.03);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.offer-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.1);
}

.offer-btn:active {
  transform: translateY(0);
}

.cta-btn {
  background: linear-gradient(135deg, var(--theme-accent) 0%, var(--theme-accent-ink) 180%);
  color: #fff;
}

.cta-btn:hover {
  background: linear-gradient(135deg, var(--theme-accent) 20%, var(--theme-accent-ink) 200%);
}

.btn-sub {
  font-size: 10px;
  font-weight: normal;
  opacity: 0.8;
  margin-top: 2px;
}

.amz-btn {
  background: linear-gradient(135deg, #ff9900 0%, #ff8c00 100%);
  color: #fff;
  text-shadow: 0 1px 1px rgba(0,0,0,0.1);
}

.amz-btn:hover {
  background: linear-gradient(135deg, #ff8c00 0%, #ff7c00 100%);
}

.btn-row {
  margin-top: 32px;
}

/* ---- FAQ & フッター ------------------------------------------------------- */
.faq-section {
  border-top: 1px solid var(--color-border);
  padding: 40px 24px;
  background-color: #f8fafc;
}

.faq-title {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-dark);
  margin-bottom: 24px;
  text-align: center;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-item h3 {
  font-size: 14px;
  color: var(--color-dark);
  margin-bottom: 6px;
  position: relative;
  padding-left: 20px;
}

.faq-item h3::before {
  content: "Q.";
  position: absolute;
  left: 0;
  color: var(--color-primary-light);
  font-family: var(--font-mono);
  font-weight: bold;
}

.faq-item p {
  font-size: 13px;
  color: var(--color-muted);
  line-height: 1.6;
  position: relative;
  padding-left: 20px;
}

.faq-item p::before {
  content: "A.";
  position: absolute;
  left: 0;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-weight: bold;
}

.footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 24px;
  text-align: center;
  background-color: var(--color-surface);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 16px;
}

.footer-links a {
  font-size: 12px;
  color: var(--color-muted);
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.copyright {
  font-size: 11px;
  color: var(--color-muted);
  font-family: var(--font-mono);
}

/* レスポンシブ調整 */
@media (max-width: 480px) {
  .screen {
    padding: 32px 16px;
  }
  .specimens {
    grid-template-columns: 1fr;
  }
  .top-title {
    font-size: 26px;
  }
  .res-title {
    font-size: 22px;
  }
}