:root {
  --ink: #171c25;
  --paper: #f3f5f4;
  --paper-warm: #f6f0e8;
  --white: #ffffff;
  --green: #405b56;
  --green-deep: #314943;
  --green-soft: #e4eae7;
  --amber: #d17a1f;
  --amber-deep: #b9610c;
  --amber-soft: #f6e7d5;
  --muted: #69726f;
  --line: #cfd7d4;
  --shadow: 0 25px 70px rgba(35, 48, 44, 0.12);
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Noto Sans KR", sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; z-index: 999; top: 12px; left: 12px; padding: 10px 15px; background: var(--ink); color: white; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: fixed;
  z-index: 100;
  top: 0;
  width: 100%;
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease;
}
.site-header.scrolled { border-color: rgba(64, 91, 86, .13); background: rgba(243, 245, 244, .9); backdrop-filter: blur(16px); }
.nav-inner { display: flex; min-height: 76px; align-items: center; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { display: grid; width: 40px; height: 40px; border-radius: 11px; place-items: center; background: var(--ink); color: white; font: 700 12px/1 "DM Sans"; }
.brand-copy { display: flex; flex-direction: column; }
.brand-copy strong { font: 700 11px/1 "DM Sans"; letter-spacing: .12em; }
.brand-copy small { margin-top: 6px; color: #85908c; font: 600 7px/1 "DM Sans"; letter-spacing: .16em; }
.desktop-nav { display: flex; gap: 30px; margin-left: auto; margin-right: 36px; }
.desktop-nav a { position: relative; color: #535f5b; font-size: 12px; font-weight: 600; }
.desktop-nav a::after { position: absolute; right: 0; bottom: -8px; left: 0; height: 2px; background: var(--amber); content: ""; transform: scaleX(0); transition: transform .2s ease; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after { transform: scaleX(1); }

.button { display: inline-flex; min-height: 54px; align-items: center; justify-content: center; gap: 15px; border: 0; border-radius: 4px; padding: 0 22px; cursor: pointer; font-size: 13px; font-weight: 700; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid rgba(209, 122, 31, .3); outline-offset: 3px; }
.button-small { min-height: 44px; padding-inline: 18px; font-size: 12px; }
.button-amber { background: var(--amber); color: white; box-shadow: 0 13px 30px rgba(209, 122, 31, .2); }
.button-amber:hover { background: var(--amber-deep); }
.button-wide { width: 100%; }
.button-outline { border: 1px solid rgba(255, 255, 255, .32); background: transparent; color: white; }
.button-ghost { background: rgba(255, 255, 255, .09); color: #d9e0de; }
.button-large { min-height: 62px; padding-inline: 26px; }

.grid-paper { background-image: linear-gradient(rgba(64, 91, 86, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(64, 91, 86, .06) 1px, transparent 1px); background-size: 48px 48px; }
.hero { position: relative; min-height: 790px; border-bottom: 1px solid var(--line); overflow: hidden; }
.hero::after { position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, var(--paper) 0%, rgba(243,245,244,.97) 29%, rgba(243,245,244,.18) 68%, rgba(243,245,244,.48) 100%); content: ""; }
.hero-people {
  position: absolute;
  z-index: 0;
  right: -35px;
  bottom: -5px;
  width: min(68%, 1030px);
  height: 720px;
  object-fit: cover;
  object-position: center;
  opacity: .34;
  filter: grayscale(.55) sepia(.1) contrast(.94);
  mix-blend-mode: multiply;
  -webkit-mask-image: radial-gradient(ellipse 69% 73% at 58% 54%, #000 43%, transparent 100%);
  mask-image: radial-gradient(ellipse 69% 73% at 58% 54%, #000 43%, transparent 100%);
}
.hero-layout { position: relative; z-index: 2; display: grid; grid-template-columns: 1.12fr .88fr; gap: 76px; align-items: end; min-height: 790px; padding-top: 110px; padding-bottom: 70px; }
.hero-copy { align-self: center; }
.eyebrow { display: block; margin-bottom: 18px; color: var(--amber); font: 700 10px/1 "DM Sans"; letter-spacing: .17em; }
.hero-title { margin: 0 0 25px; font-size: clamp(50px, 5.6vw, 76px); line-height: 1.1; letter-spacing: -.065em; word-break: keep-all; }
.title-line { display: block; overflow: hidden; }
.title-line i { display: block; font-style: normal; transform: translateY(110%); animation: titleIn .8s cubic-bezier(.2,.8,.2,1) forwards; }
.title-line:nth-child(2) i { animation-delay: .08s; }
.title-line:nth-child(3) i { animation-delay: .16s; }
.title-line.accent { color: var(--amber); }
@keyframes titleIn { to { transform: translateY(0); } }
.hero-description { max-width: 520px; margin-bottom: 30px; color: #53605c; font-size: 14px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 18px; }
.text-link { display: inline-flex; gap: 16px; border-bottom: 1px solid var(--ink); padding: 8px 0; font-size: 13px; font-weight: 700; }
.hero-actions > span { color: #7b8682; font-size: 9px; }
.report-card { position: relative; align-self: end; margin-bottom: 20px; border: 1px solid rgba(64,91,86,.45); padding: 28px; background: rgba(250,251,250,.82); box-shadow: var(--shadow); backdrop-filter: blur(12px); }
.report-head { display: flex; justify-content: space-between; border-bottom: 1px solid #bdc8c4; padding-bottom: 14px; color: #68736f; font: 700 8px/1 "DM Sans"; letter-spacing: .1em; }
.status-dot::before { display: inline-block; width: 6px; height: 6px; margin-right: 7px; border-radius: 50%; background: #42a176; content: ""; }
.report-label { margin: 27px 0 19px; font: 700 15px/1 "DM Sans"; }
.report-meter { height: 6px; background: #dde4e1; }
.report-meter i { display: block; width: 78%; height: 100%; background: var(--amber); animation: meterIn 1.1s .4s ease both; transform-origin: left; }
@keyframes meterIn { from { transform: scaleX(0); } }
.report-data { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 24px 0; }
.report-data div { border-left: 2px solid #bcc7c3; padding-left: 10px; }
.report-data strong { display: block; font: 700 17px/1 "DM Sans"; }
.report-data span { display: block; margin-top: 7px; color: #7d8783; font: 600 7px/1 "DM Sans"; }
.report-card > small { display: block; margin-top: 11px; color: #7b8581; text-align: center; font-size: 9px; }

.credential-band { position: relative; z-index: 3; background: var(--green); color: white; }
.credential-grid { display: grid; grid-template-columns: 1.2fr repeat(3, 1fr); min-height: 105px; align-items: center; }
.credential-grid > div { min-height: 45px; border-right: 1px solid rgba(255,255,255,.16); padding: 4px 24px; }
.credential-grid > div:first-child { padding-left: 0; }
.credential-grid > div:last-child { border-right: 0; }
.credential-grid small { color: #b8c7c3; font: 700 8px/1 "DM Sans"; letter-spacing: .11em; }
.credential-grid strong { display: block; margin-top: 8px; font-size: 12px; }

.section { padding: 120px 0; }
.section-heading { margin-bottom: 52px; }
.section-heading h2 { margin-bottom: 17px; font-size: clamp(36px, 4.2vw, 54px); line-height: 1.25; letter-spacing: -.055em; word-break: keep-all; }
.section-heading h2 em { color: var(--amber); font-style: normal; }
.section-heading p, .split-heading > p, .heading-aside > p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.85; word-break: keep-all; }
.split-heading { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: end; }
.heading-aside { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.privacy-pill { display: inline-flex; align-items: center; gap: 9px; border: 1px solid #c9d2cf; border-radius: 99px; padding: 9px 13px; color: #5a6662; font-size: 10px; }
.privacy-pill i { width: 7px; height: 7px; border-radius: 50%; background: #42a176; box-shadow: 0 0 0 4px rgba(66,161,118,.12); }

.class-overview { padding-top: 0; background: #f7f3ec; }
.overview-hero { position: relative; min-height: 680px; overflow: hidden; background: #0b0e0d; color: white; }
.overview-hero::after { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4,7,6,.96) 0%, rgba(4,7,6,.82) 42%, rgba(4,7,6,.08) 72%); content: ""; pointer-events: none; }
.overview-hero > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: grayscale(1) contrast(1.05); }
.overview-hero-copy { position: relative; z-index: 1; display: flex; width: 52%; min-height: 680px; flex-direction: column; justify-content: center; padding: 66px; }
.overview-hero-copy h2 { margin: 18px 0 22px; color: white; font-size: clamp(46px, 5vw, 68px); line-height: 1.13; letter-spacing: -.062em; word-break: keep-all; }
.overview-lead { margin: 0; color: #d4dcda; font-size: 14px; line-height: 1.9; word-break: keep-all; }
.overview-facts { margin: 42px 0 0; border-top: 1px solid rgba(255,255,255,.2); }
.overview-facts div { display: grid; grid-template-columns: 74px 1fr; border-bottom: 1px solid rgba(255,255,255,.14); padding: 16px 0; gap: 10px; }
.overview-facts dt { color: #e5b476; font: 700 8px/1.4 "DM Sans"; letter-spacing: .12em; }
.overview-facts dd { margin: 0; color: #e2e7e5; font-size: 11px; line-height: 1.55; }
.overview-detail-grid { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid #cfc8bd; border-top: 0; }
.overview-detail, .instructor-profile { padding: 58px 54px 62px; }
.overview-detail { border-right: 1px solid #cfc8bd; }
.overview-detail h3, .instructor-profile h3 { margin: 18px 0 34px; font-size: 31px; line-height: 1.35; letter-spacing: -.045em; word-break: keep-all; }
.overview-session { border-top: 1px solid #cfc8bd; padding: 24px 0; }
.overview-session small { color: var(--amber); font: 700 8px/1.4 "DM Sans"; letter-spacing: .09em; }
.overview-session strong { display: block; margin-top: 11px; font-size: 14px; line-height: 1.6; word-break: keep-all; }
.overview-session p, .instructor-profile > p { margin: 9px 0 0; color: var(--muted); font-size: 11px; line-height: 1.8; word-break: keep-all; }
.instructor-credentials { margin: 29px 0 0; padding: 0; border-top: 1px solid #cfc8bd; list-style: none; }
.instructor-credentials li { display: grid; grid-template-columns: 34px 1fr; border-bottom: 1px solid #dcd6cd; padding: 16px 0; column-gap: 9px; }
.instructor-credentials li > span { color: var(--amber); font: 700 9px/1.5 "DM Sans"; }
.instructor-credentials li > strong { font-size: 12px; line-height: 1.55; word-break: keep-all; }
.instructor-credentials li > small { grid-column: 2; margin-top: 4px; color: var(--muted); font-size: 9px; }

.voice-scan { background: #edf0ee; }
.scanner-shell { display: grid; grid-template-columns: 1.5fr .5fr; border: 1px solid #627872; background: var(--green-deep); color: white; box-shadow: 0 30px 75px rgba(34,52,47,.16); }
.scanner-stage { position: relative; min-width: 0; padding: 32px 36px 36px; overflow: hidden; }
.scanner-stage::before { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px); background-size: 38px 38px; content: ""; pointer-events: none; }
.scanner-stage > * { position: relative; z-index: 1; }
.scanner-topline, .range-report-head { display: flex; justify-content: space-between; color: #9db0aa; font: 700 8px/1 "DM Sans"; letter-spacing: .12em; }
.scanner-topline b { color: #e5b476; }
.pitch-display { display: flex; align-items: flex-end; justify-content: space-between; min-height: 180px; padding: 32px 0 20px; }
.pitch-note { display: grid; grid-template-columns: auto auto; align-items: baseline; column-gap: 13px; }
.pitch-note > span { grid-column: 1 / -1; margin-bottom: 6px; color: #b9c7c3; font-size: 13px; font-weight: 600; }
.pitch-note strong { font-size: 76px; line-height: 1; letter-spacing: -.06em; }
.pitch-note small { color: #a8b8b3; font: 600 11px/1 "DM Sans"; }
.tuning-meter { display: flex; width: 230px; align-items: center; gap: 10px; color: #849a94; font: 600 8px/1 "DM Sans"; }
.tuning-track { position: relative; width: 100%; height: 24px; border-block: 1px solid rgba(255,255,255,.14); }
.tuning-center { position: absolute; top: -1px; bottom: -1px; left: 50%; width: 1px; background: #c4d0cc; }
.tuning-track b { position: absolute; top: 5px; left: 50%; width: 4px; height: 14px; border-radius: 3px; background: var(--amber); transform: translateX(-50%); transition: left .12s linear; }
.waveform { width: 100%; height: 130px; border-block: 1px solid rgba(255,255,255,.12); }
.scanner-instruction { display: flex; gap: 18px; align-items: center; margin: 24px 0; }
.instruction-index { display: grid; flex: 0 0 auto; width: 35px; height: 35px; place-items: center; border: 1px solid rgba(255,255,255,.24); color: #e6b16f; font: 700 9px/1 "DM Sans"; }
.scanner-instruction p { margin: 0; color: #bcc9c5; font-size: 11px; line-height: 1.7; }
.scanner-controls { display: flex; flex-wrap: wrap; gap: 10px; }
.mic-icon { position: relative; width: 13px; height: 17px; border: 2px solid currentColor; border-radius: 8px; }
.mic-icon::after { position: absolute; right: -5px; bottom: -6px; left: -5px; height: 8px; border: 2px solid currentColor; border-top: 0; border-radius: 0 0 10px 10px; content: ""; }
.scanner-error { margin: 17px 0 0; border-left: 2px solid #e59b82; padding-left: 12px; color: #f1c4b5; font-size: 11px; line-height: 1.6; }
.range-report { display: flex; flex-direction: column; border-left: 1px solid rgba(255,255,255,.16); padding: 32px 28px; background: rgba(255,255,255,.045); }
.range-report-head { border-bottom: 1px solid rgba(255,255,255,.16); padding-bottom: 17px; }
.range-item { display: flex; align-items: center; gap: 15px; padding: 34px 0; }
.range-direction { display: grid; width: 37px; height: 37px; place-items: center; border: 1px solid rgba(255,255,255,.18); color: #e1aa66; }
.range-item div { min-width: 0; }
.range-item small, .range-summary small { color: #8fa39d; font: 700 8px/1 "DM Sans"; letter-spacing: .1em; }
.range-item strong { display: block; margin: 8px 0 5px; font-size: 24px; letter-spacing: -.04em; }
.range-item p { margin: 0; color: #9fb0ab; font: 600 9px/1 "DM Sans"; }
.range-line { position: relative; height: 3px; background: rgba(255,255,255,.12); }
.range-line i { display: block; width: 0; height: 100%; background: var(--amber); transition: width .4s ease; }
.range-summary { margin-top: auto; border-top: 1px solid rgba(255,255,255,.16); padding-top: 24px; }
.range-summary strong { display: block; margin: 10px 0; font-size: 14px; line-height: 1.45; }
.range-summary p { margin: 0; color: #8fa19c; font-size: 9px; line-height: 1.65; }
.scan-guide { display: grid; grid-template-columns: repeat(3,1fr); border: 1px solid var(--line); border-top: 0; background: white; }
.scan-guide article { display: flex; gap: 17px; min-height: 130px; border-right: 1px solid var(--line); padding: 27px; }
.scan-guide article:last-child { border-right: 0; }
.scan-guide article > span { color: var(--amber); font: 700 10px/1 "DM Sans"; }
.scan-guide strong { font-size: 13px; }
.scan-guide p { margin: 9px 0 0; color: var(--muted); font-size: 10px; line-height: 1.65; }

.diagnosis { background: white; }
.diagnosis-layout { display: grid; grid-template-columns: .84fr 1.16fr; gap: 90px; align-items: start; }
.diagnosis-layout .section-heading { position: sticky; top: 120px; }
.diagnosis-list { border-top: 1px solid var(--line); }
.diagnosis-item { --x: 50%; --y: 50%; position: relative; display: grid; grid-template-columns: 45px 1fr; gap: 20px; border-bottom: 1px solid var(--line); padding: 28px 8px; overflow: hidden; }
.diagnosis-item::after, .protocol-card::after { position: absolute; inset: 0; background: radial-gradient(circle 180px at var(--x) var(--y), rgba(209,122,31,.09), transparent 70%); content: ""; opacity: 0; pointer-events: none; transition: opacity .25s ease; }
.diagnosis-item:hover::after, .protocol-card:hover::after { opacity: 1; }
.diagnosis-item > span { display: grid; position: relative; z-index: 1; width: 34px; height: 34px; border: 1px solid #9caea8; place-items: center; color: var(--amber); font: 700 9px/1 "DM Sans"; }
.diagnosis-item > div { position: relative; z-index: 1; }
.diagnosis-item h3 { margin-bottom: 9px; font-size: 18px; letter-spacing: -.035em; }
.diagnosis-item p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.75; }

.curriculum { background: var(--green-soft); }
.protocol-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.protocol-card { --x: 50%; --y: 50%; position: relative; min-height: 520px; border: 1px solid #bdc8c4; border-top: 5px solid var(--amber); padding: 38px; background: #f9faf9; overflow: hidden; }
.protocol-card > * { position: relative; z-index: 1; }
.protocol-head { display: flex; justify-content: space-between; color: var(--amber); font: 700 9px/1 "DM Sans"; letter-spacing: .1em; }
.protocol-head small { color: #78837f; }
.protocol-card h3 { margin: 58px 0 18px; font-size: 30px; line-height: 1.4; letter-spacing: -.045em; }
.protocol-card > p { min-height: 50px; color: var(--muted); font-size: 11px; line-height: 1.75; }
.protocol-card ul { margin: 27px 0 0; padding: 22px 0 0; border-top: 1px solid #d5ddda; list-style: none; }
.protocol-card li { display: flex; gap: 13px; padding: 8px 0; color: #53605c; font-size: 11px; }
.protocol-card li span { color: var(--amber); font: 700 9px/1 "DM Sans"; }
.protocol-result { position: absolute; right: 38px; bottom: 34px; left: 38px; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #d5ddda; padding-top: 20px; }
.protocol-result small { color: #8a9490; font: 700 8px/1 "DM Sans"; letter-spacing: .1em; }
.protocol-result strong { font-size: 11px; }

.team { background: white; }
.team-visual { position: relative; min-height: 480px; margin: 0 0 34px; overflow: hidden; background: #111; color: white; }
.team-visual::after { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(5,8,7,.92) 0%, rgba(5,8,7,.57) 39%, rgba(5,8,7,.08) 70%); content: ""; pointer-events: none; }
.team-visual img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; filter: grayscale(1) contrast(1.04); }
.team-visual figcaption { position: relative; z-index: 1; display: flex; width: min(430px, 48%); min-height: 480px; flex-direction: column; justify-content: flex-end; padding: 52px; }
.team-visual figcaption span { color: #e5b476; font: 700 9px/1 "DM Sans"; letter-spacing: .14em; }
.team-visual figcaption strong { margin-top: 20px; font-size: 27px; line-height: 1.4; letter-spacing: -.04em; word-break: keep-all; }
.team-visual figcaption p { margin: 18px 0 0; color: #c1c9c6; font-size: 11px; line-height: 1.8; word-break: keep-all; }
.team-table { border: 1px solid var(--line); }
.team-row { display: grid; grid-template-columns: 150px 190px 1.2fr 1fr; min-height: 122px; align-items: center; border-bottom: 1px solid var(--line); }
.team-row:last-child { border-bottom: 0; }
.team-row > * { margin: 0; padding: 24px; }
.team-row > span { color: var(--amber); font: 700 9px/1 "DM Sans"; letter-spacing: .1em; }
.team-row h3 { font-size: 18px; }
.team-row p { color: var(--muted); font-size: 11px; line-height: 1.7; }
.team-row small { color: #6e7874; font-size: 10px; line-height: 1.7; }

.guide { background: var(--green); color: white; }
.guide .section-heading h2 { color: white; }
.guide .section-heading p { color: #bac8c4; }
.eyebrow-light { color: #e5b476; }
.guide-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; border-top: 1px solid rgba(255,255,255,.2); }
.guide-item { min-height: 270px; border-right: 1px solid rgba(255,255,255,.2); padding: 32px; }
.guide-item:last-child { border-right: 0; }
.guide-item small { color: #e5b476; font: 700 8px/1 "DM Sans"; letter-spacing: .12em; }
.guide-item h3 { margin: 88px 0 13px; font-size: 20px; }
.guide-item p { margin-bottom: 13px; color: #c6d0cd; font-size: 11px; line-height: 1.7; }
.guide-item > span { color: #91a49e; font-size: 9px; }

.faq { background: white; }
.faq-layout { display: grid; grid-template-columns: .8fr 1.2fr; gap: 90px; }
.faq-list { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; min-height: 78px; align-items: center; justify-content: space-between; cursor: pointer; font-size: 14px; font-weight: 700; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary span { color: var(--amber); font-size: 22px; font-weight: 400; transition: transform .2s ease; }
.faq details[open] summary span { transform: rotate(45deg); }
.faq details p { max-width: 690px; margin: -5px 0 25px; color: var(--muted); font-size: 11px; line-height: 1.8; }

.final-cta { padding: 105px 0 125px; border-top: 2px solid var(--amber); background: var(--paper-warm); }
.cta-layout { display: grid; grid-template-columns: 1.2fr .8fr; align-items: end; gap: 80px; }
.final-cta h2 { margin: 15px 0 0; font-size: clamp(39px,4.5vw,58px); line-height: 1.22; letter-spacing: -.06em; }
.cta-action { text-align: right; }
.cta-action p { color: #68726e; font-size: 11px; line-height: 1.75; }
.footer { padding: 38px 0 115px; background: var(--paper); }
.footer-inner { display: flex; justify-content: space-between; color: #8a9490; font: 600 8px/1 "DM Sans"; letter-spacing: .1em; }

.sticky-apply { position: fixed; z-index: 90; left: 50%; bottom: 16px; display: flex; width: min(calc(100% - 30px), 680px); align-items: center; justify-content: space-between; border: 1px solid rgba(255,255,255,.1); border-radius: 17px; padding: 9px 9px 9px 20px; background: rgba(23,28,37,.95); box-shadow: 0 17px 50px rgba(20,25,32,.26); color: white; transform: translateX(-50%); backdrop-filter: blur(14px); }
.sticky-apply div { display: flex; flex-direction: column; }
.sticky-apply small { color: #949da8; font: 600 8px/1 "DM Sans"; letter-spacing: .08em; }
.sticky-apply strong { margin-top: 4px; font-size: 12px; }
.sticky-apply a { border-radius: 11px; padding: 13px 20px; background: var(--amber); font-size: 12px; font-weight: 700; }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.75,.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .09s; }
.delay-2 { transition-delay: .18s; }
.delay-3 { transition-delay: .27s; }

@media (max-width: 1020px) {
  .desktop-nav { display: none; }
  .nav-inner > .button { margin-left: auto; }
  .hero-layout { grid-template-columns: 1fr; gap: 25px; align-items: start; padding-top: 145px; }
  .hero-copy { max-width: 700px; }
  .report-card { width: min(100%, 480px); margin-left: auto; }
  .overview-hero-copy { width: 62%; padding: 50px; }
  .overview-detail-grid { grid-template-columns: 1fr; }
  .overview-detail { border-right: 0; border-bottom: 1px solid #cfc8bd; }
  .scanner-shell { grid-template-columns: 1fr; }
  .range-report { border-top: 1px solid rgba(255,255,255,.16); border-left: 0; }
  .range-summary { margin-top: 20px; }
  .team-row { grid-template-columns: 130px 170px 1fr; }
  .team-row small { grid-column: 3; padding-top: 0; }
}

@media (max-width: 760px) {
  .container { width: calc(100% - 32px); }
  .site-header { background: rgba(243,245,244,.9); backdrop-filter: blur(14px); }
  .nav-inner { min-height: 66px; }
  .nav-inner > .button { display: none; }
  .hero { min-height: 930px; }
  .hero::after { background: linear-gradient(180deg, var(--paper) 0%, rgba(243,245,244,.93) 52%, rgba(243,245,244,.22) 78%, var(--paper) 100%); }
  .hero-people { right: -285px; bottom: 105px; width: 930px; max-width: none; height: 600px; opacity: .23; }
  .hero-layout { display: block; min-height: 930px; padding-top: 130px; padding-bottom: 70px; }
  .hero-title { font-size: 35px; line-height: 1.16; }
  .report-head span:last-child { display: none; }
  .hero-description { font-size: 13px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 8px; }
  .report-card { position: absolute; right: 0; bottom: 60px; left: 0; width: auto; margin: 0 16px; padding: 22px; }
  .credential-grid { grid-template-columns: 1fr 1fr; padding: 17px 0; }
  .credential-grid > div { border-right: 0; padding: 12px 8px; }
  .section { padding: 82px 0; }
  .section-heading { margin-bottom: 36px; }
  .section-heading h2 { font-size: 35px; }
  .split-heading, .diagnosis-layout, .faq-layout, .cta-layout { grid-template-columns: 1fr; gap: 24px; }
  .overview-hero { min-height: 760px; margin-right: -16px; margin-left: -16px; }
  .overview-hero::after { background: linear-gradient(0deg, rgba(4,7,6,.98) 0%, rgba(4,7,6,.78) 53%, rgba(4,7,6,.08) 100%); }
  .overview-hero > img { object-position: 62% center; }
  .overview-hero-copy { width: 100%; min-height: 760px; justify-content: flex-end; padding: 34px 28px 42px; }
  .overview-hero-copy h2 { font-size: 44px; }
  .overview-lead { font-size: 12px; }
  .overview-facts { margin-top: 28px; }
  .overview-facts div { grid-template-columns: 58px 1fr; padding: 13px 0; }
  .overview-detail, .instructor-profile { padding: 40px 24px 44px; }
  .overview-detail h3, .instructor-profile h3 { font-size: 27px; }
  .scanner-stage { padding: 25px 20px 28px; }
  .scanner-topline span:last-child { display: none; }
  .pitch-display { align-items: flex-start; flex-direction: column; min-height: 190px; }
  .pitch-note strong { font-size: 66px; }
  .tuning-meter { width: 100%; margin-top: 24px; }
  .waveform { height: 100px; }
  .scanner-controls { display: grid; grid-template-columns: 1fr 1fr; }
  .scanner-start { grid-column: 1 / -1; }
  .range-report { padding: 26px 20px; }
  .scan-guide { grid-template-columns: 1fr; }
  .scan-guide article { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .diagnosis-layout .section-heading { position: static; }
  .protocol-grid { grid-template-columns: 1fr; }
  .protocol-card { min-height: 560px; padding: 28px 24px; }
  .protocol-card h3 { margin-top: 45px; font-size: 26px; }
  .protocol-result { right: 24px; bottom: 27px; left: 24px; align-items: flex-start; flex-direction: column; gap: 8px; }
  .team-row { grid-template-columns: 1fr; padding: 27px 24px; }
  .team-row > * { padding: 0; }
  .team-row h3 { margin: 15px 0 12px; }
  .team-row p { margin-bottom: 13px; }
  .team-row small { grid-column: auto; }
  .team-visual { min-height: 520px; }
  .team-visual::after { background: linear-gradient(0deg, rgba(5,8,7,.94) 0%, rgba(5,8,7,.45) 56%, rgba(5,8,7,.04) 100%); }
  .team-visual img { object-position: 62% center; }
  .team-visual figcaption { width: 100%; min-height: 520px; padding: 28px 24px; }
  .team-visual figcaption strong { font-size: 23px; }
  .guide-grid { grid-template-columns: 1fr; }
  .guide-item { min-height: 225px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); padding: 27px 0; }
  .guide-item h3 { margin-top: 65px; }
  .final-cta { padding: 80px 0 110px; }
  .cta-action { text-align: left; }
  .cta-action .button { width: 100%; }
  .footer-inner { align-items: flex-start; flex-direction: column; gap: 14px; }
  .sticky-apply { bottom: 8px; width: calc(100% - 18px); }
  .sticky-apply a { padding: 12px 15px; }
}

/* Readability and responsive hardening */
body {
  font-family: "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

:where(.hero-layout, .overview-detail-grid, .overview-hero-copy, .split-heading, .diagnosis-layout, .protocol-grid, .scanner-shell, .team-row, .guide-grid, .faq-layout, .cta-layout) > * {
  min-width: 0;
}

:where(h1, h2, h3, p, li, dd, strong, small, span) {
  overflow-wrap: break-word;
}

.brand-copy strong,
.brand-copy small,
.brand-mark,
.eyebrow,
.report-head,
.report-label,
.report-data strong,
.report-data span,
.credential-grid small,
.scanner-topline,
.range-report-head,
.protocol-head,
.team-row > span,
.guide-item small,
.footer-inner,
.sticky-apply small {
  font-family: "Manrope", "Noto Sans KR", sans-serif;
}

.brand-copy strong { font-size: 12px; }
.brand-copy small { font-size: 9px; }
.desktop-nav a { font-size: 14px; }
.button { font-size: 15px; }
.button-small { font-size: 14px; }
.eyebrow { font-size: 12px; line-height: 1.35; }
.hero-description { max-width: 650px; font-size: 17px; line-height: 1.8; }
.text-link { font-size: 15px; }
.hero-actions > span { font-size: 13px; }
.report-head { font-size: 11px; line-height: 1.3; }
.report-label { font-size: 17px; }
.report-data strong { font-size: 21px; }
.report-data span { font-size: 10px; line-height: 1.3; }
.report-card > small { font-size: 12px; }
.credential-grid small { font-size: 10px; line-height: 1.3; }
.credential-grid strong { font-size: 15px; line-height: 1.4; }

.section-heading p,
.split-heading > p,
.heading-aside > p { font-size: 16px; line-height: 1.8; }
.privacy-pill { font-size: 13px; }
.overview-lead { font-size: 18px; line-height: 1.8; }
.overview-facts div { grid-template-columns: 92px 1fr; padding: 19px 0; }
.overview-facts dt { font-size: 11px; line-height: 1.5; }
.overview-facts dd { font-size: 16px; line-height: 1.6; font-weight: 500; }
.overview-session small { font-size: 10px; line-height: 1.5; }
.overview-session strong { font-size: 17px; }
.overview-session p,
.instructor-profile > p { font-size: 15px; line-height: 1.8; }
.instructor-credentials li > span { font-size: 11px; }
.instructor-credentials li > strong { font-size: 15px; line-height: 1.6; }
.instructor-credentials li > small { font-size: 13px; }

.scanner-topline,
.range-report-head { font-size: 10px; line-height: 1.35; }
.pitch-note small { font-size: 13px; }
.tuning-meter { font-size: 10px; }
.scanner-instruction p,
.scanner-error { font-size: 14px; }
.range-item small,
.range-summary small { font-size: 10px; }
.range-item p { font-size: 12px; line-height: 1.45; }
.range-summary strong { font-size: 16px; }
.range-summary p { font-size: 12px; }
.scan-guide strong { font-size: 15px; }
.scan-guide p { font-size: 14px; line-height: 1.7; }

.diagnosis-item h3 { font-size: 21px; }
.diagnosis-item p { font-size: 15px; line-height: 1.75; }
.protocol-card > p { font-size: 15px; }
.protocol-card li { font-size: 14px; line-height: 1.6; }
.protocol-result small { font-size: 10px; }
.protocol-result strong { font-size: 14px; }
.team-visual figcaption span { font-size: 11px; }
.team-visual figcaption p { font-size: 15px; }
.team-row > span { font-size: 11px; }
.team-row h3 { font-size: 20px; }
.team-row p { font-size: 15px; }
.team-row small { font-size: 13px; }
.guide-item small { font-size: 10px; }
.guide-item p { font-size: 15px; }
.guide-item > span { font-size: 13px; line-height: 1.55; }
.faq summary { font-size: 16px; }
.faq details p { font-size: 15px; }
.cta-action p { font-size: 15px; }
.footer-inner { font-size: 11px; line-height: 1.5; }
.sticky-apply small { font-size: 10px; }
.sticky-apply strong,
.sticky-apply a { font-size: 14px; }

@media (max-width: 1020px) {
  .hero-title { font-size: clamp(48px, 8vw, 68px); }
  .overview-hero,
  .overview-hero-copy { min-height: 800px; }
  .overview-hero-copy { width: 78%; }
  .overview-facts dd { font-size: 15px; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 72px; }
  .container { width: min(calc(100% - 32px), var(--container)); }
  .hero { min-height: 1040px; }
  .hero-layout { min-height: 1040px; padding-top: 112px; }
  .hero-copy { width: 100%; min-width: 0; }
  .hero-title {
    max-width: 100%;
    font-size: clamp(34px, 9.5vw, 40px);
    line-height: 1.18;
    letter-spacing: -.055em;
    word-break: keep-all;
  }
  .title-line {
    width: 100%;
    overflow: visible;
  }
  .title-line i {
    width: 100%;
    white-space: normal;
    word-break: keep-all;
    overflow-wrap: normal;
  }
  .hero-description {
    width: 100%;
    max-width: none;
    font-size: 16px;
    line-height: 1.75;
    word-break: keep-all;
  }
  .hero-actions > span { font-size: 12px; }
  .report-card { bottom: 56px; }
  .report-data span { font-size: 9px; }

  .section { padding: 76px 0; }
  .section-heading h2 { font-size: clamp(32px, 9vw, 40px); }
  .section-heading p,
  .split-heading > p,
  .heading-aside > p { font-size: 15px; }

  .overview-hero { min-height: 0; }
  .overview-hero-copy {
    width: 100%;
    min-height: 0;
    justify-content: flex-start;
    padding: 340px 24px 88px;
  }
  .overview-hero-copy h2 {
    max-width: 100%;
    font-size: clamp(37px, 10.5vw, 46px);
    line-height: 1.18;
    word-break: keep-all;
  }
  .overview-lead { font-size: 16px; }
  .overview-facts div { grid-template-columns: 64px minmax(0, 1fr); gap: 12px; }
  .overview-facts dt { font-size: 10px; }
  .overview-facts dd { font-size: 15px; }
  .overview-detail,
  .instructor-profile { padding: 38px 22px 42px; }
  .overview-detail h3,
  .instructor-profile h3 { font-size: 28px; }
  .overview-session strong { font-size: 16px; }
  .overview-session p,
  .instructor-profile > p { font-size: 15px; }

  .protocol-card { min-height: 620px; }
  .protocol-card > p,
  .protocol-card li { font-size: 14px; }
  .team-visual figcaption p,
  .team-row p,
  .guide-item p,
  .faq details p { font-size: 15px; }
  .team-row small,
  .guide-item > span { font-size: 13px; }
  .sticky-apply { overflow: hidden; }
  .sticky-apply div { min-width: 0; }
  .sticky-apply a { flex: 0 0 auto; white-space: nowrap; }
}

@media (max-width: 420px) {
  .brand-copy strong { font-size: 11px; }
  .brand-copy small { font-size: 8px; }
  .hero-title { font-size: clamp(32px, 9.1vw, 37px); }
  .hero-description { font-size: 15px; }
  .report-card { padding: 20px; }
  .report-label { font-size: 15px; }
  .overview-hero-copy h2 { font-size: clamp(35px, 10vw, 42px); }
  .sticky-apply { padding-left: 14px; }
  .sticky-apply small { display: none; }
  .sticky-apply strong { margin-top: 0; font-size: 13px; }
  .sticky-apply a { padding: 12px; font-size: 13px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .title-line i { transform: none; }
}

/* Real lesson case and decision-focused lower page */
.case-study { border: 1px solid var(--line); background: #f8faf9; }
.case-student { padding: 38px 40px 42px; background: var(--green-deep); color: white; }
.case-student > span { color: #e5b476; font: 700 11px/1 "DM Sans"; letter-spacing: .12em; }
.case-student blockquote { margin: 24px 0 0; font-size: 24px; font-weight: 750; line-height: 1.65; letter-spacing: -.025em; word-break: keep-all; }
.case-process > div { border-bottom: 1px solid var(--line); padding: 30px 40px 34px; }
.case-process > div:last-child { border-bottom: 0; }
.case-process small { color: var(--amber); font: 700 11px/1 "DM Sans"; letter-spacing: .1em; }
.case-process h3 { margin: 13px 0 10px; font-size: 20px; line-height: 1.5; letter-spacing: -.025em; word-break: keep-all; }
.case-process p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.8; word-break: keep-all; }
.guide-item { min-height: 230px; padding: 30px; }
.guide-item h3 { margin-top: 48px; }
.application-flow { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid rgba(255,255,255,.2); }
.application-flow > div { border-right: 1px solid rgba(255,255,255,.2); padding: 28px 30px 31px; }
.application-flow > div:last-child { border-right: 0; }
.application-flow small { color: #e5b476; font: 700 10px/1 "DM Sans"; letter-spacing: .1em; }
.application-flow strong { display: block; margin-top: 15px; font-size: 17px; }
.application-flow p { margin: 9px 0 0; color: #bac8c4; font-size: 14px; line-height: 1.65; }
.faq { padding-block: 92px; }
.final-cta { padding-block: 92px 108px; }

@media (max-width: 1020px) {
  .application-flow { grid-template-columns: 1fr; }
  .application-flow > div { border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); }
  .application-flow > div:last-child { border-bottom: 0; }
}

@media (max-width: 760px) {
  .case-student { padding: 30px 24px 34px; }
  .case-student blockquote { font-size: 20px; line-height: 1.65; word-break: normal; }
  .case-process > div { padding: 27px 24px 31px; }
  .case-process h3 { font-size: 18px; word-break: normal; }
  .case-process p { font-size: 15px; word-break: normal; }
  .guide-item { min-height: 0; padding: 28px 0; }
  .guide-item h3 { margin-top: 34px; }
  .application-flow > div { padding: 25px 0 27px; }
  .faq { padding-block: 74px; }
  .final-cta { padding-block: 76px 104px; }
}

/* Final fluid-layout safeguards */
.hero-title,
.overview-hero-copy h2,
.section-heading h2,
.protocol-card h3,
.final-cta h2 {
  font-weight: 800;
  letter-spacing: -.035em;
}

@media (max-width: 760px) {
  body,
  main,
  section,
  .container {
    max-width: 100vw;
  }
  :where(h1, h2, h3, p, li, dd, blockquote, strong, small) {
    max-width: 100%;
    white-space: normal;
    word-break: normal;
    overflow-wrap: anywhere;
  }
  .hero {
    min-height: 0;
    overflow: clip;
  }
  .hero-layout {
    display: flex;
    min-height: 0;
    flex-direction: column;
    padding-top: 112px;
    padding-bottom: 76px;
  }
  .hero-copy,
  .hero-title,
  .title-line,
  .title-line i,
  .hero-description {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    white-space: normal;
    word-break: normal;
    overflow-wrap: anywhere;
  }
  .title-line { overflow: visible; }
  .hero-title {
    font-size: clamp(34px, 9.4vw, 40px);
    line-height: 1.2;
  }
  .hero-description { font-size: 15px; }
  .report-card {
    position: relative;
    right: auto;
    bottom: auto;
    left: auto;
    width: 100%;
    max-width: 100%;
    margin: 34px 0 0;
  }
  .report-data { gap: 7px; }
  .report-data div { min-width: 0; padding-left: 8px; }
  .report-data span { overflow-wrap: anywhere; }
  .protocol-card {
    min-height: 0;
    padding-bottom: 28px;
  }
  .protocol-card > p { min-height: 0; }
  .protocol-result {
    position: static;
    margin-top: 30px;
  }
}

/* In-site application modal (submits to the Google Form response endpoint) */
.apply-modal { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; padding: 20px; }
.apply-modal[hidden],
.apply-form[hidden],
.apply-done[hidden] { display: none; }
.apply-backdrop { position: absolute; inset: 0; background: rgba(23, 28, 37, .64); backdrop-filter: blur(5px); }
.apply-dialog {
  position: relative;
  width: min(620px, 100%);
  max-height: min(88vh, 920px);
  overflow-y: auto;
  border-top: 5px solid var(--amber);
  border-radius: 6px;
  padding: 36px 34px 40px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 30px 80px rgba(20, 25, 32, .4);
}
.apply-close {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}
.apply-close:hover { background: rgba(23, 28, 37, .07); }
.apply-intro h2 { margin: 0 0 10px; font-size: 26px; letter-spacing: -.03em; }
.apply-intro p { margin: 0 0 26px; color: #5a6662; font-size: 14px; line-height: 1.7; }
.apply-form { display: grid; gap: 22px; }
.apply-field { display: grid; gap: 7px; }
.apply-field label,
.apply-field legend,
.apply-consent-title { padding: 0; font-size: 14px; font-weight: 700; line-height: 1.5; word-break: keep-all; }
.apply-field i { color: var(--amber); font-style: normal; }
.apply-field small { color: #5a6662; font-size: 12px; line-height: 1.6; word-break: keep-all; }
.apply-field input[type="text"],
.apply-field input[type="tel"] {
  width: 100%;
  border: 1px solid #c2ccc8;
  border-radius: 4px;
  padding: 13px 14px;
  background: white;
  color: var(--ink);
  font: 500 15px/1.4 "Noto Sans KR", sans-serif;
}
.apply-field input::placeholder { color: #9aa5a1; }
.apply-field input:focus-visible { outline: 3px solid rgba(209, 122, 31, .3); outline-offset: 1px; border-color: var(--amber); }
.apply-choice { margin: 0; border: 0; }
.apply-radio { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 500; cursor: pointer; }
.apply-radio input { width: 17px; height: 17px; accent-color: var(--amber); cursor: pointer; }
.apply-other-input { margin-left: 27px; width: calc(100% - 27px) !important; }
.apply-other-input:disabled { background: #eef1f0; cursor: not-allowed; }
.apply-consent { border: 1px solid #c9d2cf; border-radius: 6px; padding: 16px 18px; background: #f9faf9; }
.apply-error { margin: 0; border: 1px solid #d68080; border-radius: 4px; padding: 12px 14px; background: #fbeeee; color: #8c2f2f; font-size: 13px; line-height: 1.6; }
.apply-error a { color: #8c2f2f; font-weight: 700; text-decoration: underline; }
.apply-done { display: grid; gap: 12px; padding: 26px 0 6px; text-align: center; }
.apply-done strong { font-size: 22px; letter-spacing: -.02em; }
.apply-done p { margin: 0 0 12px; color: #5a6662; font-size: 14px; line-height: 1.7; }
.button-ink-outline { border: 1px solid #9caea8; background: transparent; color: var(--ink); }
.button-ink-outline:hover { background: rgba(23, 28, 37, .06); }

@media (max-width: 760px) {
  .apply-modal { padding: 0; align-items: end; }
  .apply-dialog { max-height: 94dvh; border-radius: 14px 14px 0 0; padding: 30px 20px 36px; }
  .apply-intro h2 { font-size: 22px; }
}