:root {
    --bg: #ffffff;
    --bg-alt: #f2f3f5;
    --text: #191f28;
    --text-2: #4b5159;
    --text-3: #8b9097;
    --line: #e5e7eb;
    --brand: #4d7a00;
    --brand-soft: #f3f8e6;
    --radius: 12px;
    --max: 1120px;
  }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  html { scroll-behavior: smooth; }
  body { font-family: 'Pretendard Variable', Pretendard, -apple-system, sans-serif; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; word-break: keep-all; }
  a { color: inherit; text-decoration: none; }
  img { display: block; max-width: 100%; }
  .wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

  header { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.92); backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid var(--line); }
  header .wrap { display: flex; align-items: center; height: 64px; gap: 32px; }
  header .logo { height: 22px; width: auto; }
  nav { display: flex; gap: 28px; margin-left: auto; font-size: 15px; color: var(--text-2); }
  nav a:hover { color: var(--text); }
  .btn { display: inline-flex; align-items: center; justify-content: center; height: 52px; padding: 0 24px; border-radius: 10px; font-size: 16px; font-weight: 600; transition: background .15s; }
  .btn-primary { background: var(--brand); color: #fff; }
  .btn-primary:hover { background: #426900; }
  .btn-sm { height: 38px; padding: 0 16px; font-size: 14px; border-radius: 8px; }
  .link { font-size: 16px; font-weight: 600; border-bottom: 1.5px solid var(--text); padding-bottom: 2px; }
  .ctas { flex-wrap: wrap; row-gap: 20px; }
  .try { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
  .try-note { font-size: 13px; color: var(--text-3); }
  .cta .try { align-items: center; }
  .dl { display: flex; flex-wrap: wrap; gap: 12px; }
  .btn-store { gap: 10px; padding: 0 20px 0 16px; background: #111; color: #fff; text-align: left; }
  .btn-store:hover { background: #2b2b2b; }
  .btn-store span { display: flex; flex-direction: column; line-height: 1.15; white-space: nowrap; font-size: 17px; font-weight: 700; letter-spacing: -0.01em; }
  .btn-store small { font-size: 11px; font-weight: 500; opacity: .75; }
  .cta .dl { justify-content: center; }

  .hero { padding: 88px 0 96px; }
  .hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: center; }
  .hero h1 { font-size: 64px; line-height: 1.12; letter-spacing: -0.035em; font-weight: 700; }
  .hero .lead { margin-top: 24px; font-size: 20px; line-height: 1.6; color: var(--text-2); max-width: 28em; }
  .hero .ctas { margin-top: 40px; display: flex; align-items: center; gap: 28px; }
  .hero .meta { margin-top: 28px; font-size: 14px; color: var(--text-3); }
  .hero .insta { margin-top: 24px; display: inline-flex; align-items: center; gap: 12px; padding: 10px 18px 10px 10px; border: 1px solid var(--line); border-radius: 14px; background: #fff; box-shadow: 0 4px 14px rgba(17,24,39,.06); transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease; }
  .hero .insta:hover { border-color: #d62976; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(214,41,118,.14); }
  .hero .insta-icon { width: 40px; height: 40px; border-radius: 11px; display: flex; align-items: center; justify-content: center; background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285aeb 90%); flex: none; }
  .hero .insta-text { display: flex; flex-direction: column; line-height: 1.3; }
  .hero .insta-text b { font-size: 15px; font-weight: 700; color: var(--text); }
  .hero .insta-text span { font-size: 13px; color: var(--text-2); }
  .hero .insta-arrow { margin-left: 6px; font-size: 18px; color: var(--text-3); transition: transform .15s ease, color .15s ease; }
  .hero .insta:hover .insta-arrow { transform: translateX(3px); color: #d62976; }
  .phone { width: 340px; margin: 0 auto; border-radius: 44px; padding: 11px; background: #111; box-shadow: 0 30px 70px rgba(17,24,39,.16); }
  .phone img { border-radius: 34px; aspect-ratio: 9 / 17; object-fit: cover; object-position: top; width: 100%; }

  section { padding: 112px 0; }
  section.alt { background: var(--bg-alt); }
  section.line { border-top: 1px solid var(--line); }
  .scene .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
  .scene.flip .text { order: 2; }
  .step { font-size: 15px; font-weight: 600; color: var(--brand); }
  h2 { font-size: 42px; line-height: 1.24; letter-spacing: -0.028em; font-weight: 700; }
  .scene h2 { margin-top: 12px; }
  .scene p, .section-lead { margin-top: 18px; font-size: 18px; line-height: 1.7; color: var(--text-2); }
  .facts { margin-top: 28px; display: grid; gap: 14px; }
  .facts li { list-style: none; display: grid; grid-template-columns: 20px 1fr; gap: 12px; font-size: 16px; line-height: 1.55; }
  .facts li::before { content: ''; width: 7px; height: 7px; margin: 8px 0 0 6px; border-radius: 50%; background: var(--brand); }
  .shot { width: 100%; max-width: 380px; justify-self: center; border-radius: 24px; overflow: hidden; border: 1px solid var(--line); background: #fff; }
  .shot img { aspect-ratio: 9 / 15; object-fit: cover; object-position: top; width: 100%; }
  .shot.bottom img { object-position: bottom; }
  .shot.natural img { aspect-ratio: auto; }
  .shot.wide { max-width: 560px; }
  .new { display: inline-block; margin-left: 10px; font-size: 13px; font-weight: 600; color: var(--brand); background: var(--brand-soft); padding: 3px 9px; border-radius: 6px; vertical-align: 6px; letter-spacing: 0; }

  .gallery { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
  .gallery figure img { border-radius: 16px; aspect-ratio: 9 / 16; object-fit: cover; width: 100%; }
  .gallery figcaption { margin-top: 12px; font-size: 15px; color: var(--text-2); }

  .mini { margin-top: 48px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .mini h3, .more h3 { font-size: 18px; font-weight: 700; }
  .mini p, .more p { margin-top: 6px; font-size: 15px; line-height: 1.6; color: var(--text-2); }
  .more { margin-top: 44px; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
  .more > div { padding: 24px 24px 24px 0; border-bottom: 1px solid var(--line); }
  .clubs { padding: 0; }
  .clubs .photo { height: 520px; background: url('img/court.webp') center/cover no-repeat; }
  .clubs .panel { background: #fff; margin: -120px auto 0; position: relative; max-width: var(--max); padding: 56px 56px 0; border-radius: 20px 20px 0 0; }
  .clubs .cols { margin-top: 36px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; padding-bottom: 96px; }
  .clubs h3 { font-size: 20px; font-weight: 700; }
  .clubs .cols p { margin-top: 8px; font-size: 16px; line-height: 1.65; color: var(--text-2); }

  .steps { margin-top: 48px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .steps .n { font-size: 15px; font-weight: 600; color: var(--brand); }
  .steps h3 { margin-top: 8px; font-size: 22px; font-weight: 700; }
  .steps p { margin-top: 8px; font-size: 16px; line-height: 1.65; color: var(--text-2); }

  .reviews-grid { margin-top: 48px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .review { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; justify-content: space-between; gap: 28px; }
  .review q { quotes: none; font-size: 18px; line-height: 1.65; font-weight: 500; }
  .review .who { font-size: 14px; color: var(--text-2); }
  .review .who b { display: block; color: var(--text); font-weight: 600; margin-bottom: 2px; }

  .faq { margin-top: 40px; border-top: 1px solid var(--line); max-width: 820px; }
  .faq details { border-bottom: 1px solid var(--line); padding: 22px 0; }
  .faq summary { list-style: none; cursor: pointer; font-size: 18px; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; }
  .faq summary::-webkit-details-marker { display: none; }
  .faq summary::after { content: '+'; color: var(--text-3); font-weight: 400; }
  .faq details[open] summary::after { content: '−'; }
  .faq p { margin-top: 12px; font-size: 16px; line-height: 1.7; color: var(--text-2); }

  .cta { text-align: center; }
  .cta img { width: 150px; height: auto; margin: 0 auto 12px; }
  .cta h2 { font-size: 44px; }
  .cta .section-lead { margin-top: 14px; }
  .cta .ctas { margin-top: 36px; display: flex; justify-content: center; gap: 28px; align-items: center; }

  footer { border-top: 1px solid var(--line); padding: 40px 0 56px; font-size: 14px; color: var(--text-3); }
  footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center; }
  footer .links { display: flex; flex-wrap: wrap; gap: 20px; }
  footer .copy { margin-left: auto; }

  @media (max-width: 860px) {
    header .wrap { gap: 16px; }
    nav { gap: 16px; font-size: 14px; }
    nav a:not([href="/landing/ai"]):not([href="/landing/how-it-works"]) { display: none; }
    section { padding: 72px 0; }
    .hero { padding: 48px 0 64px; }
    .hero .wrap, .scene .wrap { grid-template-columns: 1fr; gap: 44px; }
    .scene.flip .text { order: 0; }
    .hero h1 { font-size: 42px; }
    .hero .lead { font-size: 17px; }
    .dl { display: grid; grid-template-columns: 1fr 1fr; width: 100%; max-width: 420px; }
    .dl .btn-primary { grid-column: 1 / -1; }
    .btn-store { padding: 0 12px; gap: 8px; }
    .cta .dl { margin: 0 auto; }
    .phone { width: 270px; }
    h2, .cta h2 { font-size: 30px; }
    .scene p, .section-lead { font-size: 16px; }
    .gallery { gap: 10px; margin-top: 36px; }
    .gallery figcaption { font-size: 13px; }
    .clubs .photo { height: 280px; }
    .clubs .panel { margin-top: -48px; padding: 36px 24px 0; }
    .clubs .cols, .steps, .reviews-grid { grid-template-columns: 1fr; gap: 24px; }
    .mini { grid-template-columns: 1fr; gap: 20px; margin-top: 32px; }
    .more { grid-template-columns: 1fr 1fr; }
    .more > div { padding: 18px 12px 18px 0; }
    .clubs .cols { padding-bottom: 64px; }
    footer .copy { margin-left: 0; }
  }

/* ── 실전 검증 ── */
.proof .wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.proof-list { border-top: 1px solid var(--line); }
.proof-list > div { display: grid; grid-template-columns: 150px 1fr; gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.proof-list .v { font-size: 30px; font-weight: 700; letter-spacing: -0.03em; color: var(--brand); line-height: 1.1; }
.proof-list h3 { font-size: 18px; font-weight: 700; }
.proof-list p { margin-top: 6px; font-size: 15px; line-height: 1.6; color: var(--text-2); }
@media (max-width: 860px) {
  .proof .wrap { grid-template-columns: 1fr; gap: 32px; }
  .proof-list > div { grid-template-columns: 1fr; gap: 8px; }
  .proof-list .v { font-size: 26px; }
}

/* ── 홍보 영상 ── */
.promo { text-align: center; padding-top: 24px; }
.promo .section-lead { margin-left: auto; margin-right: auto; }
.promo-video { margin: 40px auto 0; max-width: 960px; border-radius: 20px; overflow: hidden; background: #000; box-shadow: 0 24px 60px rgba(15, 23, 42, 0.18); }
.promo-video video { display: block; width: 100%; aspect-ratio: 16 / 9; }

/* ── 회원 훅 갤러리 ── */
.feed-box { margin-top: 36px; position: relative; }
.feed-nav { display: flex; align-items: center; }
.feed-nav span { font-size: 14px; font-weight: 600; color: var(--text-3); }
/* 고정 높이 상자 안에서 세로로 내려 보는 3열 격자 — 페이지는 길어지지 않고 한 번에 여러 장이 보인다 */
/* (columns 는 높이를 막으면 옆으로 새 열을 만들어 세로 스크롤이 안 된다 — grid 로 세로로 쌓는다) */
.feed { margin-top: 16px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px 20px; align-items: start; max-height: 760px; overflow-y: auto; padding: 0 6px 48px 0; scrollbar-width: thin; }
.feed figure { margin: 0; }
.feed img { display: block; width: 100%; border-radius: 16px; }
/* 아래에 더 있다는 표시 — 상자 바닥을 배경색으로 흐리게 */
.feed-box::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 72px; background: linear-gradient(to bottom, rgba(242, 243, 245, 0), var(--bg-alt)); pointer-events: none; }
.feed figcaption { margin-top: 10px; font-size: 14px; line-height: 1.5; color: var(--text-2); }
.feed figcaption b { display: block; font-size: 16px; color: var(--text); }

/* ── 숫자 벽 ── */
.nums { margin-top: 44px; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.nums > div { padding: 28px 24px 28px 0; border-bottom: 1px solid var(--line); }
.nums b { display: block; font-size: 48px; font-weight: 800; letter-spacing: -0.04em; color: var(--brand); line-height: 1; }
.nums span { display: block; margin-top: 10px; font-size: 15px; color: var(--text-2); }

/* ── 대진 품질 ── */
.fair .wrap { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; }
/* 세로로 긴 캡처 — 고정 높이 상자 안에서 내려 본다(회원 훅 갤러리와 같은 방식) */
.scroll-shot { margin: 0; width: 100%; max-width: 380px; justify-self: center; }
.scroll-shot .shot { max-height: 640px; overflow-y: auto; scrollbar-width: thin; }
.scroll-shot .shot img { height: auto; }
.scroll-shot figcaption { margin-top: 12px; text-align: center; font-size: 14px; font-weight: 600; color: var(--text-3); }
@media (max-width: 860px) { .scroll-shot .shot { max-height: 70vh; } }
.fair-illust { margin: 0; }
.fair-illust figcaption { margin-top: 14px; text-align: center; font-size: 15px; font-weight: 600; color: var(--text-2); }

@media (max-width: 860px) {
  .feed { grid-template-columns: 1fr; max-height: 70vh; }
  .nums { grid-template-columns: 1fr 1fr; }
  .nums b { font-size: 36px; }
  .fair .wrap { grid-template-columns: 1fr; gap: 32px; }
}

/* ── 워치 ── */
.watches { display: flex; justify-content: center; gap: 28px; }
.watches figure { margin: 0; }
.watch { width: 220px; padding: 12px; border-radius: 58px; background: #111; box-shadow: 0 24px 56px rgba(17,24,39,.18); }
.watch img { width: 100%; aspect-ratio: 1; border-radius: 46px; }
.watches figcaption { margin-top: 14px; text-align: center; font-size: 15px; font-weight: 600; color: var(--text-2); }
@media (max-width: 860px) {
  .watches { gap: 14px; }
  .watch { width: 150px; padding: 8px; border-radius: 40px; }
  .watch img { border-radius: 32px; }
  .watches figcaption { font-size: 14px; }
}

/* ── 낭독 샘플 ── */
.listen { scroll-margin-top: 88px; margin-top: 32px; padding: 22px 24px; border-radius: 16px; background: var(--bg); border: 1px solid var(--line); }
.listen-head h3 { font-size: 17px; font-weight: 700; }
.listen-head span { display: block; margin-top: 4px; font-size: 13px; color: var(--text-3); }
.listen audio { display: block; width: 100%; margin-top: 16px; }
.listen-row { margin-top: 16px; }
.listen-row b { display: block; font-size: 14px; font-weight: 600; color: var(--text-2); }
.listen-row audio { display: block; width: 100%; margin-top: 8px; }
.listen details { margin-top: 14px; }
.listen summary { cursor: pointer; font-size: 14px; font-weight: 600; color: var(--brand); }
.listen details p { margin-top: 10px; font-size: 14px; line-height: 1.75; color: var(--text-2); }

/* ── 왜 테스노트인가 ── */
.why { margin-top: 48px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); }
.why > div { padding: 28px 28px 28px 0; }
.why > div:not(:nth-child(3n+1)) { padding-left: 28px; border-left: 1px solid var(--line); }
.why > div:nth-child(n+4) { border-top: 1px solid var(--line); }
.why .big { font-size: 40px; font-weight: 700; letter-spacing: -0.03em; color: var(--brand); line-height: 1.1; }
.why h3 { margin-top: 14px; font-size: 18px; font-weight: 700; }
.why p { margin-top: 8px; font-size: 15px; line-height: 1.65; color: var(--text-2); }
.more-link { display: inline-block; margin-top: 28px; font-size: 16px; font-weight: 600; color: var(--brand); }
.more-link::after { content: ' →'; }

/* ── 하위 페이지 ── */
.page-hero { padding: 88px 0 72px; border-bottom: 1px solid var(--line); }
.page-hero .kicker { font-size: 15px; font-weight: 600; color: var(--brand); }
.page-hero h1 { margin-top: 12px; font-size: 52px; line-height: 1.15; letter-spacing: -0.032em; font-weight: 700; }
.page-hero p { margin-top: 20px; font-size: 19px; line-height: 1.65; color: var(--text-2); max-width: 36em; }
nav a.on { color: var(--text); font-weight: 600; }

.metrics { margin-top: 48px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.metric { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: #fff; }
.metric .v { font-size: 44px; font-weight: 700; letter-spacing: -0.03em; }
.metric .v small { font-size: 20px; font-weight: 600; color: var(--text-2); margin-left: 4px; }
.metric h3 { margin-top: 10px; font-size: 17px; font-weight: 700; }
.metric p { margin-top: 6px; font-size: 15px; line-height: 1.6; color: var(--text-2); }
.note { margin-top: 20px; font-size: 13px; line-height: 1.6; color: var(--text-3); max-width: 60em; }

.guide { margin-top: 48px; display: grid; gap: 0; border-top: 1px solid var(--line); }
.guide-step { display: grid; grid-template-columns: 56px 1fr 280px; gap: 32px; align-items: start; padding: 36px 0; border-bottom: 1px solid var(--line); }
.guide-step .n { font-size: 28px; font-weight: 700; color: var(--brand); line-height: 1; }
.guide-step h3 { font-size: 22px; font-weight: 700; }
.guide-step > div:nth-child(2):last-child { grid-column: 2 / -1; }
.guide-step p { margin-top: 10px; max-width: 40em; font-size: 16px; line-height: 1.7; color: var(--text-2); }
.guide-step .where { margin-top: 12px; font-size: 14px; color: var(--text-3); }
.guide-step img { width: 100%; height: auto; border-radius: 14px; border: 1px solid var(--line); aspect-ratio: 4 / 5; object-fit: cover; object-position: top; }
.tabs-row { margin-top: 40px; display: flex; flex-wrap: wrap; gap: 8px; }
.tabs-row a { white-space: nowrap; padding: 10px 18px; border-radius: 999px; background: var(--bg-alt); font-size: 15px; font-weight: 600; color: var(--text-2); }

/* ── 일러스트 ── */
/* 손그림은 흰 바탕 PNG — multiply 로 회색 섹션 배경에 녹여 흰 사각형 경계가 보이지 않게 한다 */
.illust { mix-blend-mode: multiply; width: 100%; height: auto; }
.proof-illust { margin-top: 36px; max-width: 460px; }
.head-illust { display: grid; grid-template-columns: 1fr 220px; gap: 48px; align-items: end; }
.steps > div > .illust { width: 200px; margin-bottom: 16px; }
/* 테돌이(투명 PNG) — 하위 페이지 제목 옆, 마지막 시작 버튼 위 */
.page-hero.with-mascot .wrap { display: grid; grid-template-columns: 1fr 220px; gap: 48px; align-items: center; }
.page-hero .mascot { width: 220px; height: auto; }
.listen-head.has-mascot { display: flex; align-items: center; gap: 14px; }
.listen-head.has-mascot img { width: 64px; height: 64px; flex: none; }
.guide-step .mascot-step { width: 150px; height: auto; justify-self: center; border: 0; border-radius: 0; aspect-ratio: auto; }
.guide-step .aside { margin-top: 16px; }
.guide-step .aside summary { cursor: pointer; font-size: 15px; font-weight: 600; color: var(--brand); }
.guide-step .aside-body { margin-top: 12px; }
.guide-step .aside-body img { max-width: 320px; border: 0; border-radius: 0; aspect-ratio: auto; object-fit: contain; }
.guide-step .aside-body .facts { margin-top: 12px; }

@media (max-width: 860px) {
  .head-illust { grid-template-columns: 1fr 110px; gap: 16px; }
  .proof-illust { margin-top: 24px; }
  .steps.with-illust > div { display: grid; grid-template-columns: 88px 1fr; gap: 16px; align-items: center; }
  .steps > div > .illust { width: 88px; margin: 0; }
  .page-hero.with-mascot .wrap { grid-template-columns: 1fr; gap: 0; }
  .page-hero .mascot { order: -1; width: 88px; margin-bottom: 12px; }
  .guide-step .mascot-step { width: 110px; justify-self: start; }
  .why { grid-template-columns: 1fr 1fr; }
  .why > div, .why > div:not(:nth-child(3n+1)), .why > div:nth-child(n+4) { padding: 22px 16px 22px 0; border-left: 0; border-top: 0; border-bottom: 1px solid var(--line); }
  .why .big { font-size: 30px; }
  .page-hero { padding: 48px 0 44px; }
  .page-hero h1 { font-size: 34px; }
  .page-hero p { font-size: 16px; }
  .metrics { grid-template-columns: 1fr; }
  .guide-step { grid-template-columns: 40px 1fr; gap: 16px; }
  .guide-step img { grid-column: 2; aspect-ratio: 4 / 3; }
}