@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');
@import url('https://fonts.googleapis.com/css2?family=Nanum+Myeongjo:wght@400;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
  --deep: #04222c;
  --night: #03161c;
  --ocean: #0e4b5b;
  --teal: #2f7b84;
  --aqua: #9adfdc;
  --sand: #e4dcc9;
  --amber: #c79a5b;
  --coral: #bd7f68;
  --foam: #eef4f4;
  --mist: #d5e6e6;
  --ink: #0e2429;
  --muted: #5a7176;
  --line: rgba(10, 48, 58, 0.12);
  --shadow: 0 30px 90px rgba(3, 24, 31, 0.16);
  --hard-shadow: 10px 10px 0 rgba(5, 36, 46, .09);
  --radius: 28px;
  --display: "Nanum Myeongjo", "Pretendard", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% -2%, rgba(154, 223, 220, 0.30), transparent 30rem),
    radial-gradient(circle at 94% 14%, rgba(199, 154, 91, 0.12), transparent 22rem),
    repeating-linear-gradient(90deg, rgba(6, 34, 44, .03) 0 1px, transparent 1px 88px),
    linear-gradient(180deg, #f3f8f8 0%, #e6f0f0 46%, #dbe9ea 100%);
  line-height: 1.72;
  letter-spacing: -0.012em;
  word-break: keep-all;
  overflow-wrap: break-word;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 82% 74%, rgba(46, 124, 133, .12), transparent 18rem),
    linear-gradient(115deg, transparent 0 58%, rgba(6,40,51,.05) 58% 58.35%, transparent 58.35%);
}

a { color: inherit; text-decoration: none; }
h1, h2, h3, .poster-head strong, .price { text-wrap: balance; }
p, li, dd, figcaption, summary, .lead, .card-note span { text-wrap: pretty; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(248, 251, 250, 0.78);
  backdrop-filter: blur(18px) saturate(1.15);
  border-bottom: 1px solid rgba(12, 54, 64, 0.08);
  box-shadow: 0 12px 40px rgba(4, 28, 35, .05);
}

.brand, .nav-links, .hero-actions, .cta-actions, .quick-facts { display: flex; align-items: center; }
.brand { gap: 10px; font-weight: 760; letter-spacing: -0.015em; }
.brand-mark {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(135deg, var(--night), var(--teal));
  box-shadow: 6px 6px 0 rgba(217,168,95,.28);
  font-size: 13px; letter-spacing: -0.04em;
}
.nav-links { gap: 22px; color: var(--muted); font-size: 14px; }
.nav-links a:hover { color: var(--deep); }
.nav-cta {
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--deep);
  font-weight: 700;
  font-size: 14px;
}

.section { padding: clamp(76px, 11vw, 132px) clamp(20px, 7vw, 104px); }
.hero {
  position: relative;
  isolation: isolate;
  min-height: calc(92vh - 78px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.58fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
}
.hero-photo-bg {
  margin: clamp(18px, 3vw, 34px);
  min-height: min(780px, calc(92vh - 112px));
  border-radius: 34px 78px 34px 78px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.66);
  background:
    linear-gradient(90deg, rgba(248,251,250,.96) 0%, rgba(248,251,250,.82) 41%, rgba(6,40,51,.04) 62%, rgba(6,40,51,.28) 100%),
    linear-gradient(180deg, rgba(8,40,50,.02), rgba(8,40,50,.22)),
    url('/assets/line-hold-editorial.webp') center / cover no-repeat;
  box-shadow: var(--shadow), var(--hard-shadow);
  animation: hero-settle 1.1s ease both;
}
.hero-photo-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 18% 18%, rgba(255,255,255,.72), transparent 34rem),
    repeating-linear-gradient(180deg, transparent 0 32px, rgba(255,255,255,.22) 32px 33px);
}
.hero-photo-bg::before {
  content: "0m\A 10m\A 20m\A 30m";
  white-space: pre;
  position: absolute;
  right: clamp(18px, 3vw, 42px);
  top: clamp(86px, 10vw, 132px);
  z-index: 0;
  padding-left: 12px;
  border-left: 2px solid rgba(255,255,255,.56);
  color: rgba(255,255,255,.82);
  font-size: 12px;
  font-weight: 850;
  line-height: 3.1;
  letter-spacing: .08em;
  text-shadow: 0 1px 10px rgba(0,0,0,.28);
}
.visual-kicker {
  display: inline-flex;
  margin: 0 0 16px;
  padding: 7px 11px;
  border: 1px solid rgba(6, 40, 51, .14);
  border-radius: 999px;
  background: rgba(255,255,255,.58);
  color: var(--ocean);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: .08em;
}
.hero-photo-bg .hero-copy {
  max-width: 820px;
  padding: clamp(8px, 2vw, 20px);
  border-radius: 32px;
  animation: copy-rise .9s ease .12s both;
}
.eyebrow {
  margin: 0 0 16px;
  color: var(--teal);
  letter-spacing: .02em;
  font-size: 13px;
  font-weight: 760;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(34px, 4.8vw, 62px);
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: var(--deep);
  text-shadow: 0 12px 40px rgba(255,255,255,.46);
}
h1::after {
  content: "";
  display: block;
  width: clamp(56px, 7vw, 92px);
  height: 2px;
  margin-top: 22px;
  background: var(--amber);
  opacity: .8;
}
h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 50px);
  line-height: 1.2;
  letter-spacing: -0.012em;
  color: var(--deep);
  max-width: 920px;
}
h3 { color: var(--deep); letter-spacing: -0.018em; }
.lead { max-width: 610px; color: #3d5a61; font-size: clamp(16px, 1.45vw, 19px); line-height: 1.78; }
.hero-actions { flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 760;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.button:hover { transform: translateY(-2px); }
.primary { background: var(--deep); color: #fff; box-shadow: 0 14px 34px rgba(8, 40, 50, .22); }
.secondary { background: rgba(255,255,255,.72); border: 1px solid var(--line); color: var(--deep); }
.light { background: #fff; color: var(--deep); }
.ghost { color: #fff; border: 1px solid rgba(255,255,255,.35); }

.quick-facts {
  align-items: stretch;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0;
}
.quick-facts div {
  min-width: 146px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,.58);
  transition: transform .28s ease, background .28s ease, box-shadow .28s ease;
}
.quick-facts div:hover { transform: translateY(-3px); background: rgba(255,255,255,.76); box-shadow: 0 14px 34px rgba(4, 28, 35, 0.08); }
.quick-facts dt { color: var(--muted); font-size: 12px; font-weight: 760; letter-spacing: .02em; }
.quick-facts dd { margin: 4px 0 0; font-weight: 760; }

.hero-card {
  position: relative;
  padding: 18px;
  border-radius: 38px;
  background: linear-gradient(160deg, rgba(255,255,255,.92), rgba(255,255,255,.45));
  border: 1px solid rgba(255,255,255,.82);
  box-shadow: var(--shadow);
}
.hero-summary-card {
  align-self: end;
  min-height: 440px;
  background: transparent;
  border-color: transparent;
  box-shadow: none;
}
.hero-summary-card .card-note {
  left: auto;
  max-width: 330px;
}
.water-window {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.2) 0 28%, transparent 28%),
    linear-gradient(180deg, #a9d5d6 0%, #2d7d89 42%, #082832 100%);
}
.sun {
  position: absolute; top: 44px; right: 50px;
  width: 88px; height: 88px; border-radius: 50%;
  background: rgba(255, 236, 185, .95);
  box-shadow: 0 0 80px rgba(255, 236, 185, .8);
}
.wave { position: absolute; left: -10%; width: 120%; height: 120px; border-radius: 50%; background: rgba(255,255,255,.22); }
.wave-one { top: 150px; animation: drift 8s ease-in-out infinite; }
.wave-two { top: 185px; opacity: .6; animation: drift 10s ease-in-out infinite reverse; }
.diver-dot {
  position: absolute; left: 48%; top: 54%;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--sand);
  box-shadow: 0 0 0 10px rgba(231, 215, 189, .16), 0 120px 0 -5px rgba(231, 215, 189, .55);
}
.card-note {
  position: absolute; left: 34px; right: 34px; bottom: 34px;
  display: grid; gap: 4px;
  padding: 20px;
  border-radius: 24px;
  color: #fff;
  background: rgba(8, 40, 50, .68);
  backdrop-filter: blur(18px);
  animation: note-float 5.8s ease-in-out infinite;
}
.card-note span { color: rgba(255,255,255,.78); }

.hero-floating-badge {
  position: absolute;
  top: clamp(28px, 4vw, 54px);
  right: clamp(28px, 4vw, 54px);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 14px 18px;
  border-radius: 20px;
  background: rgba(255,255,255,.88);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  animation: badge-float 5s ease-in-out infinite;
}
.hero-floating-badge .badge-value { font-size: 26px; font-weight: 850; color: var(--deep); letter-spacing: -0.02em; }
.hero-floating-badge .badge-label { font-size: 11px; font-weight: 760; color: var(--muted); letter-spacing: .03em; }
@keyframes badge-float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.feature-diagonal { position: relative; overflow: hidden; border-top: 1px solid var(--line); }
.diagonal-bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  color: rgba(6, 40, 51, .05);
  font-size: clamp(90px, 16vw, 220px);
  font-weight: 900;
  letter-spacing: -0.02em;
  white-space: nowrap;
  pointer-events: none;
  z-index: 0;
}
.diagonal-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
}
.diagonal-copy h2 { margin: 4px 0 18px; }
.diagonal-stage { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.diagonal-card-track {
  position: relative;
  width: min(340px, 78vw);
  aspect-ratio: 3 / 4;
  transform: rotate(-4deg);
  transition: transform .4s ease;
}
.diagonal-card-track:hover { transform: rotate(0deg) scale(1.02); }
.diagonal-slide {
  position: absolute;
  inset: 0;
  margin: 0;
  border-radius: 30px;
  overflow: hidden;
  box-shadow: var(--shadow), var(--hard-shadow);
  border: 6px solid #fff;
  opacity: 0;
  transform: scale(.96);
  transition: opacity .5s ease, transform .5s ease;
  pointer-events: none;
}
.diagonal-slide.is-active { opacity: 1; transform: scale(1); pointer-events: auto; }
.diagonal-slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.diagonal-slide figcaption {
  position: absolute; left: 18px; right: 18px; bottom: 18px;
  display: flex; flex-direction: column; gap: 2px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(6,40,51,.68);
  backdrop-filter: blur(10px);
  color: #fff;
}
.diagonal-slide figcaption span { font-size: 12px; color: rgba(255,255,255,.72); font-weight: 760; letter-spacing: .04em; }
.diagonal-slide figcaption strong { font-size: 20px; font-weight: 820; letter-spacing: -0.02em; }
.diagonal-nav { display: flex; align-items: center; gap: 16px; }
.diagonal-arrow {
  display: grid; place-items: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  font-size: 20px;
  color: var(--deep);
  cursor: pointer;
  transition: background .2s ease, transform .2s ease;
}
.diagonal-arrow:hover { background: var(--mist); transform: translateY(-2px); }
.diagonal-dots { display: flex; gap: 8px; }
.diagonal-dots button {
  width: 9px; height: 9px; border-radius: 50%;
  border: none; padding: 0;
  background: var(--line);
  cursor: pointer;
  transition: background .2s ease, transform .2s ease;
}
.diagonal-dots button.is-active { background: var(--teal); transform: scale(1.3); }

.split { display: grid; grid-template-columns: .8fr 1fr; gap: clamp(28px, 6vw, 80px); border-top: 1px solid var(--line); }
.text-stack { color: #3c5960; font-size: 18px; }
.section-heading { max-width: 780px; margin-bottom: 34px; }
.section-heading p { max-width: 680px; }
.trust-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.about-grid { display: grid; grid-template-columns: 1.2fr repeat(3, .72fr); gap: 18px; }
.about-card, .fit-grid article, .program-card, .value-card, .mood-grid article, .photo-card, .inquiry-checklist, .dm-template, .snapshot-card,
.trust-grid article, .step, .faq-list details {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255,255,255,.80), rgba(255,255,255,.58));
  box-shadow: 0 10px 40px rgba(4, 28, 35, 0.06);
  position: relative;
  transition: transform .28s ease, box-shadow .28s ease, background .28s ease;
}
.about-card:hover, .fit-grid article:hover, .program-card:hover, .value-card:hover, .mood-grid article:hover, .photo-card:hover, .snapshot-card:hover,
.trust-grid article:hover, .step:hover, .faq-list details:hover {
  transform: translateY(-4px);
  background: rgba(255,255,255,.76);
  box-shadow: 0 18px 48px rgba(4, 28, 35, 0.09);
}
.intro-card { background: rgba(255,255,255,.78); }
.mini-card span {
  display: inline-flex;
  margin-bottom: 30px;
  color: var(--teal);
  font-weight: 800;
  letter-spacing: .04em;
}
.credentials-strip {
  display: flex;
  flex-wrap: wrap;
  margin: 20px 0 0;
  padding: 22px clamp(20px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255,255,255,.62);
}
.credential-item { flex: 1 1 190px; padding: 2px 26px; border-left: 1px solid var(--line); }
.credential-item:first-child { border-left: 0; padding-left: 0; }
.credential-item dt { margin: 0 0 6px; color: var(--muted); font-size: 12px; font-weight: 760; letter-spacing: .04em; }
.credential-item dd { margin: 0; color: var(--deep); font-size: 17px; font-weight: 800; letter-spacing: -0.01em; }
.price-rationale {
  margin-top: 24px;
  padding: 22px 26px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.5);
}
.price-rationale h3 { margin-bottom: 8px; font-size: 18px; }
.price-rationale p { margin: 0; color: #3d5a61; font-size: 15px; line-height: 1.72; }
.fit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.fit-grid article { min-height: 240px; }
.photo-section { border-top: 1px solid var(--line); }
.photo-section .section-heading { max-width: 720px; }
.photo-section .section-heading p { max-width: 660px; color: #49646a; font-size: 16px; line-height: 1.7; }
.photo-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; align-items: stretch; }
.photo-card { margin: 0; overflow: hidden; min-height: 0; padding: 0; display: flex; flex-direction: column; }
.photo-card img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; object-position: center; filter: saturate(.94) contrast(.98); transition: transform .45s ease, filter .45s ease; }
.photo-card:nth-child(3) img { object-position: left center; }
.photo-card:hover img { transform: scale(1.035); filter: saturate(1.02) contrast(1); }
.photo-card figcaption { flex: 1; min-height: 74px; padding: 16px 18px 18px; color: #49646a; font-size: 14px; line-height: 1.55; background: rgba(255,255,255,.86); }
.photo-wide { grid-column: auto; }
.price-snapshot, .program-section, .value-section, .mood-section { border-top: 1px solid var(--line); }
.snapshot-grid { display: grid; grid-template-columns: .9fr 1.15fr .95fr; gap: 18px; align-items: stretch; }
.snapshot-card { min-height: 250px; }
.snapshot-card h3 { font-size: clamp(24px, 2.8vw, 34px); line-height: 1.18; margin-bottom: 12px; }
.section-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 22px; }
.snapshot-card { overflow: hidden; }
.snapshot-card::before {
  content: "DIVE LOG";
  display: block;
  width: max-content;
  margin-bottom: 18px;
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(6,40,51,.08);
  color: var(--ocean);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .08em;
}
.snapshot-card:nth-child(2)::before { content: "MONTH PASS"; color: #fff; background: rgba(6,40,51,.68); }
.price-card, .dm-template, .cta-panel {
  background:
    radial-gradient(circle at 85% 16%, rgba(217,168,95,.35), transparent 12rem),
    linear-gradient(135deg, var(--night), var(--ocean));
}
.price-card::after, .dm-template::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: calc(var(--radius) - 10px);
  pointer-events: none;
}
.program-grid { display: grid; grid-template-columns: 1.08fr .96fr .96fr; gap: 18px; align-items: stretch; }
.program-card { min-height: 320px; }
.value-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; align-items: stretch; }
.value-card { min-height: 360px; }
.highlight-card { background: linear-gradient(135deg, rgba(255,255,255,.86), rgba(217,232,232,.72)); }
.muted-list li::before { background: #9a7b52; }
.price-card {
  background: linear-gradient(135deg, var(--deep), var(--ocean));
  color: #fff;
}
.price-card h3 { color: #fff; font-size: clamp(28px, 3.4vw, 42px); margin-bottom: 8px; }
.price-card p { color: rgba(255,255,255,.8); }
.price {
  margin: 0 0 18px;
  color: #fff !important;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1;
  font-weight: 820;
  letter-spacing: -0.035em;
}
.inquiry-section { border-top: 1px solid var(--line); }
.inquiry-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: stretch; }
.dm-template {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: linear-gradient(135deg, var(--deep), var(--ocean));
  color: #fff;
}
.dm-template p { color: rgba(255,255,255,.82); font-size: 18px; }
.dev-coach-note { padding-top: clamp(44px, 7vw, 84px); }
.icon {
  display: inline-flex; margin-bottom: 38px;
  color: var(--teal); font-weight: 800; letter-spacing: .04em;
}
.timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.schedule-poster {
  margin: 0 0 28px;
  padding: clamp(24px, 4vw, 38px);
  border: 1px solid rgba(12, 54, 64, 0.12);
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(255,255,255,.90), rgba(217,232,232,.74)),
    repeating-linear-gradient(90deg, rgba(6,40,51,.055) 0 1px, transparent 1px 56px),
    radial-gradient(circle at 10% 20%, rgba(46,124,133,.18), transparent 22rem);
  box-shadow: 0 18px 58px rgba(4, 28, 35, 0.08), var(--hard-shadow);
}
.poster-head { display: flex; justify-content: space-between; align-items: end; gap: 18px; margin-bottom: 24px; }
.poster-head span { color: var(--muted); font-size: 13px; font-weight: 760; letter-spacing: .02em; text-transform: uppercase; }
.poster-head strong { color: var(--deep); font-size: clamp(24px, 3vw, 38px); line-height: 1.1; letter-spacing: -0.035em; }
.poster-flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.poster-flow div { position: relative; min-height: 126px; padding: 18px 14px; border-radius: 24px; background: rgba(255,255,255,.72); border: 1px solid var(--line); overflow: hidden; }
.poster-flow div::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 5px; background: linear-gradient(90deg, var(--amber), var(--aqua)); opacity: .8; }
.poster-flow time { display: block; margin-bottom: 22px; color: var(--teal); font-weight: 850; font-size: 19px; letter-spacing: -0.02em; }
.poster-flow span { color: #24444c; font-weight: 760; line-height: 1.45; }
.schedule-poster p { margin: 18px 0 0; color: #5b6f73; font-size: 14px; }
.schedule-poster .schedule-note { margin: 0 0 18px; color: #49646a; font-size: 15px; }
.mood-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.mood-grid article { min-height: 190px; display: flex; align-items: flex-end; }
.mood-grid p { margin: 0; color: #26464e; font-size: clamp(19px, 2vw, 25px); line-height: 1.45; letter-spacing: -0.025em; }
.step span {
  display: grid; place-items: center;
  width: 42px; height: 42px;
  margin-bottom: 36px;
  border-radius: 50%;
  background: var(--mist);
  color: var(--deep);
  font-weight: 800;
}
.quote-band {
  margin: 0 clamp(20px, 7vw, 104px);
  padding: clamp(54px, 8vw, 86px);
  border-radius: 40px;
  background:
    radial-gradient(circle at 20% 10%, rgba(141,213,213,.24), transparent 18rem),
    linear-gradient(135deg, var(--night), var(--deep));
  color: #fff;
  text-align: center;
}
.quote-band p { margin: 0 auto; max-width: 880px; font-size: clamp(26px, 3.6vw, 46px); line-height: 1.28; letter-spacing: -0.035em; }
.faq-list { display: grid; gap: 12px; }
.faq-list summary { cursor: pointer; color: var(--deep); font-weight: 780; font-size: 18px; }
.faq-list p { margin: 16px 0 0; color: #49646a; }
.cta-panel {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: end;
  margin: 0 clamp(20px, 7vw, 104px) clamp(40px, 7vw, 84px);
  border-radius: 42px;
  background: linear-gradient(135deg, var(--ocean), var(--deep));
  color: #fff;
}
.cta-panel h2 { color: #fff; }
.cta-panel p { color: rgba(255,255,255,.76); max-width: 620px; }
.cta-actions { flex-wrap: wrap; gap: 12px; }
.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(20px, 7vw, 104px) 44px;
  color: var(--muted);
  font-size: 14px;
}
.footer p { margin: 0; }
.footer a { color: var(--deep); font-weight: 760; }
.inline-link { color: var(--teal); font-weight: 760; border-bottom: 1px solid currentColor; }
.button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid rgba(46,124,133,.55); outline-offset: 4px; border-radius: 12px; }
.mobile-sticky-cta { display: none; }

.coach-page { background: linear-gradient(180deg, #f8fbfa 0%, #eef6f4 55%, #f7efe2 100%); }
.coach-hero { padding-bottom: 36px; }
.coach-hero h1 { max-width: 980px; }
.coach-board {
  padding-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.coach-card {
  min-height: 280px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: rgba(255,255,255,.68);
  box-shadow: 0 18px 58px rgba(4, 28, 35, 0.08);
}
.coach-card h2 { font-size: clamp(24px, 3vw, 34px); margin-bottom: 14px; }
.stage-card, .action-card { grid-column: span 2; background: linear-gradient(135deg, rgba(255,255,255,.86), rgba(217,232,232,.75)); }
.warning { background: linear-gradient(135deg, #fff8ee, #ffffff); }
.card-label {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: .03em;
}
.check-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.check-list li { position: relative; padding-left: 24px; color: #3d5a61; }
.check-list li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 8px; border-radius: 50%; background: var(--teal); }
.danger-list li::before { background: #c46a4a; }
.tool-order ol { margin: 0; padding: 0; list-style: none; display: grid; gap: 14px; }
.tool-order li { display: grid; gap: 2px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.tool-order li:last-child { border-bottom: 0; padding-bottom: 0; }
.tool-order span { color: var(--muted); }
.prompt-section { padding-top: 42px; }
.prompt-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.prompt-box {
  padding: 24px;
  border-radius: 26px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.62);
}
.prompt-box p { color: #456168; font-size: 14px; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal.is-visible .about-card:nth-child(2), .reveal.is-visible .trust-grid article:nth-child(2), .reveal.is-visible .fit-grid article:nth-child(2), .reveal.is-visible .program-card:nth-child(2), .reveal.is-visible .step:nth-child(2) { transition-delay: .08s; }
.reveal.is-visible .about-card:nth-child(3), .reveal.is-visible .trust-grid article:nth-child(3), .reveal.is-visible .fit-grid article:nth-child(3), .reveal.is-visible .program-card:nth-child(3), .reveal.is-visible .step:nth-child(3) { transition-delay: .14s; }
.reveal.is-visible .about-card:nth-child(4), .reveal.is-visible .fit-grid article:nth-child(4) { transition-delay: .2s; }
@keyframes hero-settle { from { opacity: 0; transform: scale(.985) translateY(10px); } to { opacity: 1; transform: scale(1) translateY(0); } }
@keyframes copy-rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
@keyframes note-float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@keyframes drift { 0%,100% { transform: translateX(-2%); } 50% { transform: translateX(3%); } }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hero, .split, .trust-grid, .about-grid, .fit-grid, .program-grid, .snapshot-grid, .value-grid, .inquiry-grid, .timeline, .mood-grid, .coach-board, .prompt-grid, .diagonal-grid { grid-template-columns: 1fr; }
  .diagonal-card-track { margin: 0 auto; transform: rotate(-2deg); }
  .diagonal-bg-text { font-size: clamp(60px, 22vw, 140px); }
  .hero-floating-badge { top: 16px; right: 16px; padding: 10px 14px; border-radius: 16px; }
  .hero-floating-badge .badge-value { font-size: 20px; }
  .hero-floating-badge .badge-label { font-size: 9px; }
  .photo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .photo-wide { grid-column: auto; }
  .stage-card, .action-card { grid-column: auto; }
  .hero { padding-top: 52px; }
  .hero-photo-bg {
    margin: 12px;
    min-height: auto;
    border-radius: 28px 48px 28px 48px;
    background:
      linear-gradient(180deg, rgba(248,251,250,.92) 0%, rgba(248,251,250,.72) 55%, rgba(8,40,50,.18) 100%),
      url('/assets/line-hold-editorial.webp') center / cover no-repeat;
  }
  .water-window { min-height: 360px; }
  .hero-summary-card { min-height: 120px; padding: 0; }
  .hero-photo-bg::before { display: none; }
  .hero-summary-card .card-note { position: static; left: auto; right: auto; max-width: none; }
  .poster-flow { grid-template-columns: repeat(2, 1fr); }
  .cta-panel, .footer { flex-direction: column; align-items: flex-start; }
  .credentials-strip { flex-direction: column; }
  .credential-item { flex-basis: auto; border-left: 0; border-top: 1px solid var(--line); padding: 14px 0 0; }
  .credential-item:first-child { border-top: 0; padding-top: 0; }
}

@media (max-width: 560px) {
  .site-header { padding-inline: 16px; }
  .nav-cta { display: none; }
  body { padding-bottom: 74px; }
  .mobile-sticky-cta { display: inline-flex; position: fixed; left: 18px; right: 18px; bottom: 14px; z-index: 20; min-height: 52px; align-items: center; justify-content: center; border-radius: 999px; background: var(--deep); color: #fff; font-weight: 800; box-shadow: 0 14px 34px rgba(8,40,50,.26); }
  .section { padding-inline: 18px; }
  .quote-band, .cta-panel { margin-inline: 18px; }
  .quick-facts div { min-width: 100%; }
  .photo-grid { grid-template-columns: 1fr; }
  .photo-card figcaption { font-size: 15px; }
  .photo-card:nth-child(2) img, .photo-card:nth-child(3) img { aspect-ratio: 1 / 1; }
  .poster-head { display: grid; }
  .poster-flow { grid-template-columns: 1fr; }
  .poster-flow div { min-height: auto; }
  .poster-flow time { margin-bottom: 10px; }
  h1 { font-size: 38px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  .card-note { animation: none !important; }
  .depth-rail-marker { transition: none !important; }
}

/* ============================================================
   DESCENT 테마 (2026-07-09 리스타일) — frontend-design 스킬
   스크롤=잠수: 수면→심해로 어두워짐 / 세이프티 오렌지 단일 강조 /
   깊이 눈금자 + 다이브컴퓨터 모노 숫자
   ============================================================ */
:root {
  --accent: #ff5a1f;          /* 세이프티 라인 오렌지 — 유일한 강조색 */
  --accent-deep: #e8480f;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --deep-1: #0c3a47;
  --deep-2: #082b37;
  --abyss: #04141b;
}

/* 하강 배경: 페이지 전체가 수면(밝음)에서 심해(어둠)로 */
body {
  background:
    repeating-linear-gradient(90deg, rgba(6,34,44,.03) 0 1px, transparent 1px 88px),
    linear-gradient(180deg,
      #eff6f4 0%, #e2efec 20%, #cbe3e1 36%,
      #79b0b3 50%, #2f7f8a 62%, #12505d 74%,
      #0a3542 86%, #04141b 100%);
  background-repeat: no-repeat;
}
body::before { opacity: .5; }

/* 다이브컴퓨터 판독값 = 모노 */
.badge-value, .diagonal-slide figcaption strong, .num,
.hero-photo-bg::before, .depth-rail {
  font-family: var(--mono);
  font-feature-settings: "tnum" 1;
}
.hero-photo-bg::before { font-weight: 500; letter-spacing: .02em; }
.quick-facts dd .num, .credential-item dd .num { font-weight: 500; }

/* 단일 강조색을 라인 오렌지로 (라인=행동=CTA) */
.primary { background: var(--accent); box-shadow: 0 14px 34px rgba(255,90,31,.30); }
.primary:hover { background: var(--accent-deep); }
h1::after { background: var(--accent); opacity: 1; height: 3px; }
.visual-kicker { color: var(--accent-deep); border-color: rgba(255,90,31,.34); background: rgba(255,255,255,.72); }
.eyebrow { color: var(--accent-deep); }
.diagonal-dots button.is-active { background: var(--accent); }
.hero-photo-bg::before { border-left-color: var(--accent); }
.mobile-sticky-cta { background: var(--accent) !important; }

/* 깊이 밴드: 상단은 은은히, 하단은 심해로 커밋 */
.depth-1 { background: linear-gradient(180deg,#f2f8f6,#eaf3f1); border-top: 1px solid var(--line); }
.depth-2 { background: linear-gradient(180deg,#eaf3f1,#dcecea); }
.depth-3 { background: linear-gradient(180deg,#dcecea,#c3dddb); }

/* 심해 존: 어두운 물 + 밝은 헤딩, 카드는 밝은 글라스로 부유 */
.section.deep { color: #dfeeed; border-top: 1px solid rgba(255,255,255,.08); }
.section.deep .eyebrow { color: var(--accent); }
.section.deep h2, .section.deep h3 { color: #f0f8f7; }
.section.deep .section-heading p { color: rgba(214,234,232,.74); }
.feature-diagonal.deep { background: linear-gradient(180deg,#2f7f8a 0%, #0c3a47 55%, #082b37 100%); }
.feature-diagonal.deep .diagonal-copy p { color: rgba(224,240,239,.82); }
.feature-diagonal.deep .diagonal-bg-text { color: rgba(255,255,255,.06); }
.feature-diagonal.deep .diagonal-arrow { background: rgba(255,255,255,.10); border-color: rgba(255,255,255,.22); color: #fff; }
.feature-diagonal.deep .diagonal-dots button { background: rgba(255,255,255,.28); }
.faq.deep { background: linear-gradient(180deg,#082b37,#061f29); }
.faq.deep .faq-list details { background: rgba(255,255,255,.055); border-color: rgba(255,255,255,.12); box-shadow: none; }
.faq.deep .faq-list summary { color: #eef7f6; }
.faq.deep .faq-list p { color: rgba(210,230,229,.72); }
.inquiry-section.deep { background: linear-gradient(180deg,#061f29,#04141b); }
.inquiry-section.deep .inquiry-checklist { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.12); box-shadow: none; }
.inquiry-section.deep .inquiry-checklist h3 { color: #eef7f6; }
.inquiry-section.deep .check-list li { color: rgba(214,234,232,.82); }

/* 심해 색을 통일된 어비스 팔레트로 */
.quote-band { background: radial-gradient(circle at 20% 10%, rgba(255,90,31,.10), transparent 16rem), linear-gradient(160deg,#0a3542,#061f29); }
.cta-panel { background: linear-gradient(135deg,#0a3542,#04141b); }
#log.cta-panel { background: linear-gradient(135deg,#0c3a47,#061f29); }

/* 깊이 눈금자 (시그니처) — 우측 고정, 스크롤 따라 마커 하강 */
.depth-rail {
  position: fixed; top: 0; right: 0; z-index: 8;
  height: 100vh; width: 62px;
  pointer-events: none;
  display: block;
}
.depth-rail::before {
  content: ""; position: absolute; top: 12vh; bottom: 12vh; right: 30px;
  width: 2px; background: linear-gradient(180deg, rgba(120,150,155,.15), rgba(255,90,31,.55));
}
.depth-tick {
  position: absolute; right: 38px;
  transform: translateY(-50%);
  color: var(--muted); font-family: var(--mono); font-size: 10px; letter-spacing: .04em;
  opacity: .7;
}
.depth-rail-marker {
  position: absolute; right: 8px; top: 12vh;
  transform: translateY(-50%);
  padding: 3px 6px; border-radius: 6px;
  background: var(--accent); color: #fff;
  font-family: var(--mono); font-size: 11px; font-weight: 600; letter-spacing: .02em;
  box-shadow: 0 4px 14px rgba(255,90,31,.4);
  transition: top .15s linear;
}
/* 눈금자는 스크롤 구간(12vh~88vh)에 매핑 */
.depth-rail { --rail-top: 12vh; --rail-bot: 88vh; }
@media (max-width: 1180px) { .depth-rail { display: none; } }

/* 헤더도 하강 톤과 맞춤 */
.nav-cta { background: var(--accent); color: #fff; border-color: transparent; }
.button:focus-visible, a:focus-visible, summary:focus-visible { outline-color: rgba(255,90,31,.6); }

/* 하루 흐름 타임라인 (2번째 섹션) — 세로 흐름 + 모노 시간, 모바일 최적 */
.day-flow { list-style: none; margin: 8px 0 0; padding: 0; max-width: 680px; }
.day-step {
  position: relative;
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 32px;
  padding-bottom: 30px;
}
.day-step::before { /* 연결 라인 = 다이빙 라인 */
  content: ""; position: absolute; left: 103px; top: 10px; bottom: -8px;
  width: 2px; background: rgba(255,90,31,.28);
}
.day-step:last-child::before { display: none; }
.day-step:last-child { padding-bottom: 0; }
.day-step::after { /* 노드 */
  content: ""; position: absolute; left: 97px; top: 6px;
  width: 12px; height: 12px; border-radius: 50%;
  background: #fff; border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(255,90,31,.12);
}
.day-time { display: flex; flex-direction: column; align-items: flex-end; text-align: right; gap: 2px; padding-top: 2px; }
.day-time .num { font-size: clamp(17px, 1.8vw, 20px); font-weight: 600; color: var(--deep); letter-spacing: -0.01em; }
.day-time em { font-style: normal; font-size: 11px; font-weight: 760; letter-spacing: .04em; color: var(--muted); }
.day-body h3 { margin: 0 0 4px; font-size: clamp(19px, 2vw, 23px); }
.day-body p { margin: 0; color: #3d5a61; line-height: 1.6; }
.day-step.is-dawn::after { background: var(--accent); box-shadow: 0 0 0 5px rgba(255,90,31,.18); }
.day-step.is-dawn .day-time .num { color: var(--accent-deep); }
.day-step.is-dawn .day-time em { color: var(--accent-deep); }

@media (max-width: 560px) {
  .day-step { grid-template-columns: 58px 1fr; gap: 26px; }
  .day-step::before { left: 70px; }
  .day-step::after { left: 65px; }
}