/* ===================================================================
   LEE Korean Premium — スタイルシート
   カラー：ネイビー(#1C2B4A) × ゴールド(#A8842E) のプレミアム配色
   =================================================================== */

:root {
  --navy: #1c2b4a;
  --navy-deep: #131f37;
  --gold: #a8842e;
  --gold-soft: #c2a24f;
  --cream: #fbf6ec;
  --ink: #20242c;
  --gray: #5b6270;
  --line: #e6e3da;
  --white: #ffffff;
  --radius: 16px;
  --shadow: 0 14px 40px rgba(28, 43, 74, 0.10);
  --shadow-sm: 0 6px 20px rgba(28, 43, 74, 0.08);
  --max: 1160px;
  --font: "Noto Sans JP", "Noto Sans KR", sans-serif;
  --serif: "Noto Serif JP", serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font);
  color: var(--ink);
  line-height: 1.85;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  font-weight: 400;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { width: 90%; max-width: var(--max); margin: 0 auto; }
.container.narrow { max-width: 820px; }

.sp { display: none; }

/* ===================== ボタン ===================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4em;
  font-weight: 700;
  font-size: 1rem;
  padding: 1rem 1.9rem;
  border-radius: 999px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  cursor: pointer;
  border: 2px solid transparent;
  letter-spacing: .02em;
  text-align: center;
}
.btn:hover { transform: translateY(-2px); }
.btn-sm { padding: .6rem 1.1rem; font-size: .9rem; }
.btn.full { width: 100%; }

.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-soft) 100%);
  color: #fff;
  box-shadow: 0 10px 24px rgba(168, 132, 46, .35);
}
.btn-gold:hover { box-shadow: 0 14px 30px rgba(168, 132, 46, .45); }

.btn-outline-light { border-color: rgba(255,255,255,.6); color: #fff; }
.btn-outline-light:hover { background: rgba(255,255,255,.12); }

.btn-outline-dark { border-color: var(--navy); color: var(--navy); }
.btn-outline-dark:hover { background: var(--navy); color: #fff; }

.btn-line { background: #06c755; color: #fff; box-shadow: 0 10px 24px rgba(6,199,85,.3); }

/* ===================== ヘッダー ===================== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }

.logo { display: flex; align-items: center; gap: .6rem; }
.logo-mark {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--navy), var(--navy-deep));
  color: var(--gold-soft);
  font-family: var(--serif); font-weight: 700; font-size: 1.3rem;
  display: grid; place-items: center;
}
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text strong { font-size: 1.1rem; color: var(--navy); letter-spacing: .02em; }
.logo-text em { font-size: .62rem; color: var(--gold); font-style: normal; letter-spacing: .18em; text-transform: uppercase; }

.gnav { display: flex; gap: 1.4rem; }
.gnav a { font-size: .9rem; font-weight: 500; color: var(--ink); position: relative; padding: .3rem 0; transition: color .2s; }
.gnav a::after { content:""; position:absolute; left:0; bottom:-2px; width:0; height:2px; background:var(--gold); transition:width .25s; }
.gnav a:hover { color: var(--gold); }
.gnav a:hover::after { width: 100%; }

.header-cta { display: flex; align-items: center; gap: .8rem; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; width: 30px; height: 26px; background: none; border: none; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; background: var(--navy); border-radius: 2px; transition: .3s; }
.nav-toggle.open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity: 0; }
.nav-toggle.open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ===================== ヒーロー ===================== */
.hero {
  position: relative;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(168,132,46,.18), transparent 60%),
    linear-gradient(160deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: #fff;
  overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3rem; align-items: center; padding: 5rem 0 5.5rem; }

.hero-eyebrow { display: inline-block; font-size: .8rem; letter-spacing: .22em; color: var(--gold-soft); border: 1px solid rgba(194,162,79,.5); padding: .35rem 1rem; border-radius: 999px; margin-bottom: 1.6rem; }
.hero-title { font-family: var(--serif); font-size: 3rem; line-height: 1.35; font-weight: 700; letter-spacing: .01em; }
.hero-title .accent { color: var(--gold-soft); }
.hero-lead { margin-top: 1.6rem; font-size: 1.02rem; color: rgba(255,255,255,.85); font-weight: 300; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }

.hero-badges { display: flex; flex-wrap: wrap; gap: 1.4rem; margin-top: 2.4rem; list-style: none; }
.hero-badges li { font-size: .9rem; color: rgba(255,255,255,.8); display: flex; align-items: center; gap: .4rem; }
.hero-badges li::before { content: "✓"; color: var(--gold-soft); font-weight: 700; }
.hero-badges strong { color: #fff; }

.hero-visual { position: relative; }
.hero-photo {
  width: 100%; border-radius: 24px; aspect-ratio: 4/5; object-fit: cover;
  box-shadow: 0 30px 60px rgba(0,0,0,.4);
  border: 1px solid rgba(255,255,255,.1);
}
.hero-float-card {
  position: absolute; left: -22px; bottom: 30px;
  background: #fff; color: var(--navy);
  padding: 1rem 1.3rem; border-radius: 14px;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  max-width: 230px;
}
.hero-float-label { font-size: .7rem; letter-spacing: .15em; color: var(--gold); text-transform: uppercase; }
.hero-float-quote { font-family: var(--serif); font-weight: 600; font-size: 1.05rem; margin-top: .2rem; }

/* ===================== 信頼バー ===================== */
.trustbar { background: var(--cream); border-bottom: 1px solid var(--line); }
.trustbar-inner { display: grid; grid-template-columns: repeat(4,1fr); }
.trust-item { text-align: center; padding: 1.6rem 1rem; border-right: 1px solid var(--line); }
.trust-item:last-child { border-right: none; }
.trust-item .num { display: block; font-family: var(--serif); font-size: 1.7rem; font-weight: 700; color: var(--navy); }
.trust-item .lbl { font-size: .82rem; color: var(--gray); }

/* ===================== セクション共通 ===================== */
.section { padding: 5.5rem 0; }
.section-tint { background: var(--cream); }
.section-dark { background: linear-gradient(165deg, var(--navy), var(--navy-deep)); color: #fff; }

.section-head { text-align: center; margin-bottom: 3.2rem; }
.section-eyebrow { font-size: .78rem; letter-spacing: .28em; color: var(--gold); font-weight: 700; }
.section-title { font-family: var(--serif); font-size: 2.1rem; line-height: 1.4; color: var(--navy); margin-top: .6rem; }
.section-head.light .section-title { color: #fff; }
.section-sub { margin-top: 1rem; color: var(--gray); font-size: .98rem; }
.section-head.light .section-sub { color: rgba(255,255,255,.75); }

/* ===================== 選ばれる理由 ===================== */
.reason-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.5rem; }
.reason-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2rem 1.6rem; box-shadow: var(--shadow-sm);
  transition: transform .25s, box-shadow .25s, border-color .25s; position: relative;
}
.reason-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-soft); }
.reason-no { font-family: var(--serif); font-size: 1.6rem; color: var(--gold); font-weight: 700; }
.reason-card h3 { font-size: 1.15rem; color: var(--navy); margin: .6rem 0 .7rem; }
.reason-card p { font-size: .92rem; color: var(--gray); }

/* ===================== こんな方へ ===================== */
.target-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.5rem; }
.target-card { background: #fff; border-radius: var(--radius); padding: 2rem 1.5rem; text-align: center; box-shadow: var(--shadow-sm); border: 1px solid var(--line); }
.target-icon { font-size: 2.4rem; }
.target-card h3 { font-size: 1.08rem; color: var(--navy); margin: .9rem 0 .6rem; }
.target-card p { font-size: .9rem; color: var(--gray); }

/* ===================== 特徴（交互） ===================== */
.feature-rows { display: flex; flex-direction: column; gap: 3rem; }
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.feature-row.reverse .feature-text { order: 2; }
.feature-text h3 { font-family: var(--serif); font-size: 1.5rem; color: var(--navy); margin-bottom: 1rem; position: relative; padding-left: 1rem; }
.feature-text h3::before { content:""; position:absolute; left:0; top:.2em; bottom:.2em; width:4px; background: var(--gold); border-radius: 2px; }
.feature-text p { color: var(--gray); }
.feature-media img { border-radius: var(--radius); aspect-ratio: 16/11; object-fit: cover; box-shadow: var(--shadow); width: 100%; }

/* ===================== 料金 ===================== */
.price-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.4rem; align-items: stretch; }
.price-card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex; flex-direction: column;
  position: relative; backdrop-filter: blur(4px);
}
.price-card.featured {
  background: #fff; color: var(--ink);
  border: 2px solid var(--gold);
  box-shadow: 0 24px 50px rgba(0,0,0,.35);
  transform: translateY(-8px);
}
.price-ribbon { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--gold); color: #fff; font-size: .8rem; font-weight: 700; padding: .3rem 1.1rem; border-radius: 999px; }
.price-name { font-size: 1.05rem; font-weight: 700; }
.price-card .price-name { color: #fff; }
.price-card.featured .price-name { color: var(--navy); }
.price-amount { font-family: var(--serif); font-size: 1.9rem; font-weight: 700; margin: .6rem 0 .2rem; color: var(--gold-soft); }
.price-card.featured .price-amount { color: var(--gold); }
.price-unit { font-size: .85rem; font-weight: 400; color: rgba(255,255,255,.7); }
.price-card.featured .price-unit { color: var(--gray); }
.price-desc { font-size: .85rem; color: rgba(255,255,255,.7); min-height: 2.6em; }
.price-card.featured .price-desc { color: var(--gray); }
.price-list { list-style: none; margin: 1.2rem 0 1.6rem; display: flex; flex-direction: column; gap: .55rem; flex: 1; }
.price-list li { font-size: .88rem; padding-left: 1.5rem; position: relative; color: rgba(255,255,255,.85); }
.price-card.featured .price-list li { color: var(--ink); }
.price-list li::before { content: "✓"; position: absolute; left: 0; color: var(--gold-soft); font-weight: 700; }
.price-card.featured .price-list li::before { color: var(--gold); }
.price-note { text-align: center; margin-top: 2rem; font-size: .82rem; color: rgba(255,255,255,.6); }

.price-card.featured .btn-gold { box-shadow: 0 10px 24px rgba(168,132,46,.3); }

/* 3コース */
.price-sub-eyebrow {
  text-align: center; font-weight: 700; font-size: 1.05rem; color: var(--gold-soft);
  letter-spacing: .04em; margin: 0 0 1.4rem;
}
.price-grid + .price-note + .price-sub-eyebrow, .course-note + .price-sub-eyebrow { margin-top: 3rem; }
.course-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.4rem; align-items: stretch; }
.course-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.9rem 1.6rem; display: flex; flex-direction: column;
  box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s, border-color .25s;
}
.course-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-soft); }
.course-no { font-family: var(--serif); font-size: 1.8rem; color: var(--gold); font-weight: 700; line-height: 1; }
.course-name { font-size: 1.18rem; color: var(--navy); margin: .5rem 0 .4rem; }
.course-catch { font-size: .9rem; color: var(--gold); font-weight: 700; margin-bottom: 1rem; }
.course-meta { list-style: none; display: flex; flex-direction: column; gap: .6rem; margin: 0; }
.course-meta li { font-size: .9rem; color: var(--ink); padding-top: .6rem; border-top: 1px solid var(--line); }
.course-meta li:first-child { border-top: none; padding-top: 0; }
.course-meta li span {
  display: block; font-size: .72rem; font-weight: 700; color: var(--gray);
  letter-spacing: .04em; margin-bottom: .15rem;
}
.course-note { text-align: center; margin: 1.4rem 0 0; font-size: .82rem; color: rgba(255,255,255,.6); }

/* ===================== 講師紹介 ===================== */
.teacher-card {
  display: grid; grid-template-columns: 360px 1fr; gap: 3rem; align-items: start;
  background: #fff; border: 1px solid var(--line); border-radius: 24px;
  padding: 2.5rem; box-shadow: var(--shadow);
}
.teacher-photo { position: relative; }
.teacher-photo img { border-radius: 18px; aspect-ratio: 3/4; object-fit: cover; width: 100%; }
.teacher-photo-note { display: block; margin-top: .6rem; font-size: .72rem; color: var(--gray); text-align: center; }

.teacher-name-kr { font-family: "Noto Sans KR", sans-serif; font-size: 1rem; color: var(--gold); letter-spacing: .1em; }
.teacher-name { font-family: var(--serif); font-size: 1.9rem; color: var(--navy); margin: .2rem 0 .3rem; }
.teacher-name span { font-size: 1rem; color: var(--gray); }
.teacher-role { font-size: .92rem; color: var(--gold); font-weight: 700; margin-bottom: 1.3rem; }
.teacher-lead { color: var(--gray); margin-bottom: 1.6rem; }

.teacher-points { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; margin-bottom: 1.6rem; }
.teacher-points li { display: flex; align-items: center; gap: .6rem; font-size: .92rem; color: var(--ink); background: var(--cream); padding: .7rem 1rem; border-radius: 10px; }

.teacher-quote { border-left: 4px solid var(--gold); padding: .4rem 0 .4rem 1.3rem; font-family: var(--serif); color: var(--navy); font-size: 1.05rem; }

/* ===================== 受講の流れ ===================== */
.flow-steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.4rem; counter-reset: step; }
.flow-step { background: #fff; border-radius: var(--radius); padding: 1.8rem 1.4rem; box-shadow: var(--shadow-sm); border-top: 4px solid var(--gold); position: relative; }
.flow-num { font-size: .78rem; letter-spacing: .15em; font-weight: 700; color: var(--gold); }
.flow-step h3 { font-size: 1.05rem; color: var(--navy); margin: .5rem 0 .6rem; }
.flow-step p { font-size: .88rem; color: var(--gray); }

/* ===================== 受講生の声 ===================== */
.voice-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.6rem; }
.voice-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem 1.7rem; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.voice-stars { color: var(--gold); letter-spacing: .15em; margin-bottom: .8rem; }
.voice-text { color: var(--ink); font-size: .95rem; flex: 1; }
.voice-person { display: flex; align-items: center; gap: .8rem; margin-top: 1.4rem; padding-top: 1.2rem; border-top: 1px solid var(--line); }
.voice-person img { width: 48px; height: 48px; border-radius: 50%; object-fit: cover; }
.voice-person span { font-size: .85rem; color: var(--navy); font-weight: 700; line-height: 1.4; }
.voice-person em { font-style: normal; font-weight: 400; color: var(--gray); font-size: .78rem; }

/* ===================== FAQ ===================== */
.faq-list { display: flex; flex-direction: column; gap: .9rem; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.faq-item summary { cursor: pointer; list-style: none; padding: 1.2rem 1.4rem; font-weight: 700; color: var(--navy); position: relative; padding-right: 3rem; font-size: .98rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 1.3rem; top: 50%; transform: translateY(-50%); font-size: 1.4rem; color: var(--gold); font-weight: 400; transition: transform .2s; }
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-a { padding: 0 1.4rem 1.3rem; color: var(--gray); font-size: .92rem; }

/* ===================== CTA ===================== */
.cta-section { background: var(--cream); }
.cta-box {
  background: linear-gradient(165deg, var(--navy), var(--navy-deep));
  color: #fff; border-radius: 24px; padding: 3.5rem 2.5rem; text-align: center;
  box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.cta-box::before { content:""; position:absolute; top:-60px; right:-60px; width:220px; height:220px; background: radial-gradient(circle, rgba(168,132,46,.35), transparent 70%); }
.cta-box .section-eyebrow { color: var(--gold-soft); }
.cta-title { font-family: var(--serif); font-size: 2rem; margin: .6rem 0 1rem; }
.cta-lead { color: rgba(255,255,255,.85); margin-bottom: 2rem; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: center; }
.cta-actions .btn-outline-dark { border-color: rgba(255,255,255,.6); color: #fff; }
.cta-actions .btn-outline-dark:hover { background: #fff; color: var(--navy); }
.cta-small { margin-top: 1.5rem; font-size: .78rem; color: rgba(255,255,255,.55); }

/* ===================== フッター ===================== */
.site-footer { background: var(--navy-deep); color: rgba(255,255,255,.8); padding-top: 3rem; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr auto; gap: 2.5rem; align-items: start; padding-bottom: 2.5rem; }
.logo-light .logo-text strong { color: #fff; }
.footer-tagline { margin-top: 1rem; font-family: var(--serif); color: var(--gold-soft); font-size: 1rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; }
.footer-nav a { font-size: .88rem; color: rgba(255,255,255,.75); transition: color .2s; }
.footer-nav a:hover { color: var(--gold-soft); }
.footer-sns { display: flex; gap: 1rem; }
.footer-sns a { font-size: .82rem; border: 1px solid rgba(255,255,255,.25); padding: .4rem .9rem; border-radius: 999px; transition: .2s; }
.footer-sns a:hover { border-color: var(--gold-soft); color: var(--gold-soft); }
.footer-copy { border-top: 1px solid rgba(255,255,255,.12); padding: 1.4rem 0; }
.footer-copy .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: .4rem; }
.footer-copy p { font-size: .78rem; color: rgba(255,255,255,.55); }

/* ===================== 追従CTA ===================== */
.floating-cta { display: none; position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%); z-index: 90; background: linear-gradient(135deg, var(--gold), var(--gold-soft)); color: #fff; font-weight: 700; padding: .9rem 2rem; border-radius: 999px; box-shadow: 0 10px 30px rgba(168,132,46,.45); font-size: .95rem; }

/* ===================== レスポンシブ ===================== */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; padding: 3.5rem 0 4rem; }
  .hero-visual { max-width: 420px; margin: 0 auto; }
  .reason-grid, .target-grid, .price-grid, .flow-steps { grid-template-columns: repeat(2,1fr); }
  .course-grid { grid-template-columns: 1fr; }
  .voice-grid { grid-template-columns: 1fr; }
  .teacher-card { grid-template-columns: 1fr; gap: 2rem; }
  .teacher-photo { max-width: 320px; margin: 0 auto; }
  .price-card.featured { transform: none; }
}

@media (max-width: 760px) {
  .gnav { position: fixed; inset: 72px 0 auto 0; background: #fff; flex-direction: column; gap: 0; padding: 1rem 0; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); transform: translateY(-130%); transition: transform .3s; }
  .gnav.open { transform: translateY(0); }
  .gnav a { padding: .9rem 9vw; border-bottom: 1px solid var(--line); }
  .gnav a::after { display: none; }
  .nav-toggle { display: flex; }
  .header-cta .btn-sm { display: none; }
  .sp { display: inline; }
  .hero-title { font-size: 2.2rem; }
  .trustbar-inner { grid-template-columns: repeat(2,1fr); }
  .trust-item:nth-child(2) { border-right: none; }
  .reason-grid, .target-grid, .price-grid, .flow-steps, .teacher-points { grid-template-columns: 1fr; }
  .feature-row, .feature-row.reverse { grid-template-columns: 1fr; gap: 1.4rem; }
  .feature-row.reverse .feature-text { order: 0; }
  .section { padding: 4rem 0; }
  .section-title { font-size: 1.7rem; }
  .footer-inner { grid-template-columns: 1fr; gap: 1.8rem; }
  .hero-float-card { left: 0; }
  .floating-cta { display: block; }
  .cta-box { padding: 2.5rem 1.4rem; }
}