/*
 * 달네스트 소개 사이트 — «영어 4선 노트»
 * 영어 공부 노트에 실제로 있는 것만 씁니다: 파란 줄, 빨간 펜(채점 표시 · 기준선), 형광펜(강조), 연습장 여백선.
 * 그라데이션 · 이모지 · 카드 격자 · 제목 위 아이콘 타일은 쓰지 않습니다.
 */
/* 밤하늘 · 달 · 노트: 크림색 종이, 남색 잉크, 달 노랑 한 가지만 강조색으로 씁니다. 폰의 다크 모드와 상관없이 이 밝은 색으로 고정합니다. */
:root {
  color-scheme: only light;
  --paper: #fbf7ef; --ink: #1c2140; --muted: #5c6080; --soft: #f3ecdc;
  --rule: #dfe2f1; --rule-strong: #a3abd6; --hl: #ffd166; --red: #d9534f; --ok: #1d7a4a; --bad: #b3261e;
  --card: var(--paper); --line: var(--rule); --blue: #3b4cb8; --radius: 3px;
  --hero: #e9eafb; --night: #3b49b0; --night-ink: #ffffff; --night-mute: #d9dcf7; --night-rule: #6370cf; --moon: #ffcb57;
  --sans: system-ui, -apple-system, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", "Segoe UI", sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Noto Serif", serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
h1, h2 { text-wrap: balance; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 17px/1.75 var(--sans); -webkit-text-size-adjust: 100%; text-rendering: optimizeLegibility; }
a { color: var(--blue); text-underline-offset: 3px; }
.wrap { width: min(1120px, 100% - 48px); margin-inline: auto; }
.en { font-family: var(--serif); }
mark.hl { background: linear-gradient(transparent 52%, var(--hl) 52% 92%, transparent 92%); color: inherit; padding: 0 .08em; background-repeat: no-repeat; }
/* 형광펜이 그어지는 움직임 — 움직임을 끈 사람 · 인쇄 · 미리보기에서는 처음부터 다 칠해져 있습니다 */
@media (prefers-reduced-motion: no-preference) {
  mark.hl { animation: hl .9s .25s ease-out backwards; }
  @keyframes hl { from { background-size: 0% 100%; } to { background-size: 100% 100%; } }
}

/* 머리글 */
.top { border-bottom: 1px solid var(--rule); background: var(--paper); position: sticky; top: 0; z-index: 10; }
.top .wrap { display: flex; align-items: center; gap: 28px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 700 22px/1 var(--serif); letter-spacing: .01em; }
.brand svg { width: 26px; height: 26px; flex: none; }
.brand small { font: 500 13px var(--sans); color: var(--muted); letter-spacing: 0; padding-left: 10px; margin-left: 2px; border-left: 1px solid var(--rule-strong); }
.top nav { margin-left: auto; display: flex; gap: 26px; align-items: center; }
.top nav a { color: var(--ink); text-decoration: none; font-size: 15px; padding: 6px 0; border-bottom: 2px solid transparent; }
.top nav a:hover { border-bottom-color: var(--rule-strong); }
.top nav a.cta { border: 2px solid var(--ink); border-radius: var(--radius); padding: 6px 16px; background: var(--moon); color: #1c2140; font-weight: 800; }
.top nav a.cta:hover { background: var(--ink); color: var(--paper); }

/* 첫 화면 — 왼쪽 글, 오른쪽 노트 */
.hero { padding: 84px 0 96px; border-bottom: 1px solid var(--rule); background-image: repeating-linear-gradient(to bottom, transparent 0 55px, color-mix(in srgb, var(--rule) 70%, transparent) 55px 56px); overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 64px; align-items: center; }
.hero h1 { font-size: clamp(28px, 3.2vw, 44px); line-height: 1.25; margin: 0 0 22px; letter-spacing: -.025em; font-weight: 800; word-break: keep-all; }
.hero p.lead { font-size: clamp(17px, 1.8vw, 20px); color: var(--muted); margin: 0 0 32px; max-width: 32em; word-break: keep-all; }
.hero .kicker { font: 600 15px var(--sans); color: var(--muted); margin: 0 0 18px; }
.hero .kicker b { color: var(--red); font-weight: 700; }
.btns { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: center; }
.btn { display: inline-flex; align-items: center; min-height: 50px; padding: 0 26px; border-radius: var(--radius); font: 800 16px var(--sans); text-decoration: none; border: 2px solid var(--ink); color: var(--ink); background: transparent; cursor: pointer; transition: transform .12s, box-shadow .12s; }
.btn.p { background: var(--moon); color: #1c2140; box-shadow: 4px 4px 0 var(--ink); }
.btn.p:hover { transform: translate(-2px, -2px); box-shadow: 6px 6px 0 var(--ink); }
.btn.p:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink); }
.btn.t { border-color: transparent; padding: 0; min-height: 0; border-bottom: 2px solid var(--rule-strong); border-radius: 0; font-weight: 700; }
.btn.t:hover { border-bottom-color: var(--ink); }
.note { font-size: 14px; color: var(--muted); margin: 16px 0 0; word-break: keep-all; }

/* 종이 더미 — 노트 · 문제 카드 · OMR 을 .sheet 로 감쌉니다. 뒤에 한 장 더 겹치고, 달 스티커를 붙입니다 */
.sheet { position: relative; margin: 14px 10px 10px 0; }
.sheet::before { content: ""; position: absolute; inset: 14px -14px -14px 14px; background: var(--paper); border: 1px solid var(--rule-strong); transform: rotate(1.6deg); z-index: 0; }
.sheet > .nb, .sheet > .q, .sheet > .omr { position: relative; z-index: 1; transform: rotate(-0.8deg); }
.sheet .moon { position: absolute; z-index: 2; width: clamp(88px, 11vw, 140px); right: -38px; bottom: -58px; transform: rotate(-8deg); }

/* 영어 4선 노트 — 글자는 진짜 글자라 읽히고 복사됩니다 */
.nb { background: var(--paper); border: 1px solid var(--rule-strong); padding: 34px 28px 26px 64px; }
.nb::before { content: ""; position: absolute; left: 44px; top: 0; bottom: 0; width: 1.5px; background: var(--red); opacity: .55; }
.nb::after { content: ""; position: absolute; top: -13px; left: 42%; width: 92px; height: 26px; background: rgba(255, 200, 87, .85); transform: rotate(-4deg); }
.nb .meta { display: flex; justify-content: space-between; font: 700 12px var(--sans); color: var(--muted); letter-spacing: .05em; margin: 0 0 4px; }
.staff { position: relative; height: 96px; margin: 0 0 6px;
  background:
    linear-gradient(var(--rule-strong), var(--rule-strong)) 0 6px / 100% 1px no-repeat,
    repeating-linear-gradient(90deg, var(--rule-strong) 0 7px, transparent 7px 14px) 0 36px / 100% 1px no-repeat,
    linear-gradient(var(--red), var(--red)) 0 65px / 100% 1.5px no-repeat,
    linear-gradient(var(--rule-strong), var(--rule-strong)) 0 92px / 100% 1px no-repeat; }
.staff span { position: absolute; left: 2px; bottom: 32px; font: 700 clamp(28px, 3vw, 40px)/1 var(--serif); white-space: nowrap; }
.staff .tick { left: auto; right: 4px; bottom: 38px; color: var(--red); font: 800 34px/1 var(--sans); }
.circ { position: relative; display: inline-block; }
.circ::after { content: ""; position: absolute; inset: -8px -12px -6px -10px; border: 2.5px solid var(--red); border-radius: 56% 44% 52% 48% / 58% 54% 46% 42%; transform: rotate(-3deg); pointer-events: none; }
.nb .teacher { font: 700 15px var(--sans); color: var(--red); margin: 12px 0 0; }
.nb .teacher s { color: var(--muted); text-decoration-color: var(--red); font-weight: 400; }

/* 영어 단어 띠 — 크게 늘어놓은 글자(장식) */
.band { border-bottom: 1px solid var(--rule-strong); padding: 18px 0 14px; background: var(--paper); }
.band .wrap { display: flex; flex-wrap: wrap; gap: 6px 22px; align-items: center; }
.band span { font: 800 clamp(22px, 3.3vw, 42px)/1.1 var(--serif); color: transparent; -webkit-text-stroke: 1.6px var(--ink); letter-spacing: -.01em; }
.band i { width: 12px; height: 12px; border-radius: 50%; background: var(--moon); border: 2px solid var(--ink); flex: none; }
@supports not (-webkit-text-stroke: 1px red) { .band span { color: var(--ink); } }

/* 구역 */
section.blk { padding: 64px 0; border-bottom: 1px solid var(--rule); }
section.blk.alt { background: var(--soft); }
.blk .head { max-width: 760px; margin-bottom: 40px; }
.blk h2 { font-size: clamp(24px, 3vw, 36px); line-height: 1.3; margin: 0 0 14px; letter-spacing: -.02em; font-weight: 800; word-break: keep-all; }
.blk p.sub { color: var(--muted); margin: 0; word-break: keep-all; font-size: 17px; }

/* 밤하늘 구역 — 한 구역씩 뒤집어서 대비를 줍니다 */
section.blk.night { background: var(--night); color: var(--night-ink); border-bottom-color: var(--night); position: relative; overflow: hidden; }
.night .wrap { position: relative; z-index: 1; }
.night .rows .body, .night .rows .term, .night h2 { color: var(--night-ink); }
.night .sub, .night .rows .body .d, .night .rows .term small, .night .note { color: var(--night-mute); }
.night .rows { border-top-color: var(--moon); }
.night .rows li { border-bottom-color: var(--night-rule); }
.night .rows li:hover { background: rgba(255, 255, 255, .05); }
.night a, .night .rows .go { color: var(--moon); }
.night mark.hl { background-image: linear-gradient(transparent 52%, rgba(255, 200, 87, .5) 52% 92%, transparent 92%); }
.night .tag { border-color: var(--night-rule); color: var(--night-mute); }
.night .tag.soon { border-color: var(--moon); color: var(--moon); }
.night .moon-bg { position: absolute; right: 7%; top: 30px; width: clamp(80px, 10vw, 130px); z-index: 0; transform: rotate(12deg); }
.night a.rowlink:hover .term { text-decoration-color: var(--moon); }

/* 목록 줄 — 카드 격자 대신, 노트 줄처럼 */
.rows { margin: 0; padding: 0; list-style: none; border-top: 2px solid var(--ink); }
.rows li { display: grid; grid-template-columns: minmax(170px, 280px) minmax(0, 1fr); gap: 8px 48px; padding: 20px 0; margin: 0; border-bottom: 1px solid var(--rule-strong); }
.rows .term { font: 700 clamp(21px, 2.3vw, 28px)/1.2 var(--serif); }
.rows .term small { display: block; font: 600 13px var(--sans); color: var(--muted); letter-spacing: 0; margin-top: 4px; }
.rows .body { color: var(--ink); word-break: keep-all; }
.rows .body b { font-weight: 700; }
.rows .body span.d { display: block; color: var(--muted); font-size: 16px; margin-top: 2px; }
a.rowlink { color: inherit; text-decoration: none; }
a.rowlink:hover .term { text-decoration: underline; text-decoration-color: var(--red); text-decoration-thickness: 2px; }
.rows .go { color: var(--blue); font-weight: 700; }

/* 숫자 */
.nums { display: flex; flex-wrap: wrap; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--rule-strong); }
.nums div { flex: 1 1 180px; padding: 22px 24px 22px 0; }
.nums div + div { padding-left: 24px; border-left: 1px solid var(--rule-strong); }
.nums b { display: block; font: 800 clamp(28px, 3.4vw, 42px)/1.1 var(--serif); }
.nums span { color: var(--muted); font-size: 15px; display: block; margin-top: 4px; word-break: keep-all; }

/* 순서 */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; border-left: 2px solid var(--ink); margin-left: 8px; }
.steps li { counter-increment: s; position: relative; padding: 4px 0 28px 36px; word-break: keep-all; }
.steps li:last-child { padding-bottom: 0; }
.steps li::before { content: counter(s); position: absolute; left: -17px; top: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--paper); border: 2px solid var(--ink); display: grid; place-items: center; font: 700 16px var(--serif); }
.steps b { display: block; font-size: 18px; }
.steps span { color: var(--muted); }

/* 질문 */
details { border-bottom: 1px solid var(--rule-strong); }
details:first-of-type { border-top: 2px solid var(--ink); }
details summary { cursor: pointer; font-weight: 700; padding: 18px 28px 18px 0; position: relative; list-style: none; word-break: keep-all; }
details summary::-webkit-details-marker { display: none; }
details summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font: 400 26px/1 var(--sans); color: var(--red); }
details[open] summary::after { content: "–"; }
details p { margin: 0 0 20px; color: var(--muted); max-width: 44em; word-break: keep-all; }

/* 시연 안내 — 쪽지 */
.demo { border: 2px solid var(--ink); padding: 28px 30px; background: var(--paper); box-shadow: 8px 8px 0 var(--hl); max-width: 720px; }
.demo dl { display: grid; grid-template-columns: max-content 1fr; gap: 8px 22px; margin: 20px 0 8px; }
.demo dt { color: var(--muted); font-size: 15px; }
.demo dd { margin: 0; font: 700 17px ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; word-break: break-all; }

/* 문제 카드 · OMR — 소개용 그림(진짜 글자) */
.q { border: 1px solid var(--rule-strong); background: var(--paper); padding: 28px 30px; }
.q .meta { display: flex; justify-content: space-between; font: 600 12px var(--sans); color: var(--muted); letter-spacing: .04em; margin-bottom: 18px; }
.q .word { font: 700 clamp(34px, 4vw, 46px)/1.05 var(--serif); margin: 0 0 22px; }
.q ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; counter-reset: o; }
.q li { counter-increment: o; display: flex; gap: 14px; align-items: center; padding: 12px 14px; border: 1.5px solid var(--rule-strong); font-weight: 600; }
.q li::before { content: counter(o); width: 26px; height: 26px; border-radius: 50%; border: 1.5px solid var(--rule-strong); display: grid; place-items: center; font: 700 13px var(--serif); flex: none; }
.q li.right { border-color: var(--red); }
.q li.right::before { background: var(--red); border-color: var(--red); color: #fff; }
.q li.right::after { content: "정답"; margin-left: auto; color: var(--red); font: 700 13px var(--sans); }
.omr { border: 1px solid var(--rule-strong); background: var(--paper); padding: 26px 28px; }
.omr .meta { display: flex; justify-content: space-between; font: 600 12px var(--sans); color: var(--muted); letter-spacing: .04em; margin-bottom: 14px; }
.omr .row { display: grid; grid-template-columns: 34px repeat(5, 1fr); gap: 8px; align-items: center; padding: 7px 0; border-bottom: 1px dashed var(--rule); font: 700 15px var(--serif); }
.omr .row:last-child { border-bottom: 0; }
.omr i { display: block; width: 22px; height: 22px; border: 1.5px solid var(--rule-strong); border-radius: 50%; margin: 0 auto; font: 600 11px/19px var(--sans); text-align: center; font-style: normal; color: var(--muted); }
.omr i.on { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* 문의 폼 */
.cols { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 56px; align-items: start; }
form.inq { display: grid; gap: 18px; max-width: 620px; }
form.inq label { display: block; font-weight: 700; font-size: 15px; }
form.inq label > input[type=text], form.inq label > textarea { display: block; margin-top: 6px; }
form.inq label span.opt { font-weight: 400; color: var(--muted); }
form.inq input[type=text], form.inq textarea { font: 17px var(--sans); padding: 12px 2px; border: 0; border-bottom: 2px solid var(--rule-strong); border-radius: 0; background: transparent; color: var(--ink); width: 100%; }
form.inq textarea { min-height: 112px; resize: vertical; }
form.inq input:focus, form.inq textarea:focus { outline: 0; border-bottom-color: var(--ink); background: linear-gradient(transparent 85%, var(--hl) 85%); }
form.inq .agree { display: flex; gap: 12px; align-items: flex-start; font-weight: 400; font-size: 14px; color: var(--muted); }
form.inq .agree input { margin-top: 4px; width: 18px; height: 18px; flex: none; accent-color: var(--ink); }
form.inq .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.msg { padding: 12px 14px; border-left: 4px solid; font-size: 15px; }
.msg.ok { border-color: var(--ok); color: var(--ok); background: var(--soft); }
.msg.bad { border-color: var(--bad); color: var(--bad); background: var(--soft); }
[hidden] { display: none !important; }

/* 바닥글 */
footer.foot { padding: 40px 0 56px; color: var(--muted); font-size: 14px; border-top: 1px solid var(--rule-strong); }
footer.foot .wrap { display: grid; gap: 14px; }
footer.foot nav { display: flex; gap: 22px; flex-wrap: wrap; }
footer.foot a { color: var(--muted); }
footer.foot b { color: var(--ink); }
.disc { font-size: 13px; line-height: 1.65; }

/* 관리 화면 공용 */
.tag { display: inline-block; font-size: 12px; font-weight: 700; padding: 1px 8px; border: 1px solid var(--rule-strong); color: var(--muted); vertical-align: middle; margin-left: 6px; }
.tag.soon { border-color: var(--red); color: var(--red); }
.item { border: 1px solid var(--rule-strong); padding: 16px 18px; margin-bottom: 12px; }

@media (max-width: 860px) {
  .hero { padding: 48px 0 56px; }
  .hero .wrap, .cols { grid-template-columns: 1fr; gap: 40px; }
  .rows li { grid-template-columns: 1fr; gap: 6px; }
  .nums div + div { border-left: 0; padding-left: 0; }
  section.blk { padding: 52px 0; }
}
@media (max-width: 560px) {
  .wrap { width: calc(100% - 36px); }
  .top { position: static; }
  .top .wrap { flex-wrap: wrap; min-height: 0; padding: 12px 0 4px; gap: 4px 12px; }
  .top nav { width: 100%; margin-left: 0; gap: 13px; justify-content: space-between; overflow-x: auto; white-space: nowrap; padding: 2px 0 10px; scrollbar-width: none; }
  .top nav::-webkit-scrollbar { display: none; }
  .top nav a { font-size: 14px; }
  .top nav a.cta { padding: 4px 12px; }
  .nums div { flex: 1 1 42%; padding: 18px 12px 18px 0; }
  .nums div + div { padding-left: 0; }
  .brand small { display: none; }
  .nb { padding: 26px 18px 18px 46px; }
  .nb::before { left: 32px; }
  .sheet { margin-right: 6px; }
  .sheet .moon { right: -10px; bottom: -44px; width: 80px; }
  .night .moon-bg { right: 14px; top: 20px; width: 70px; }
  .demo { padding: 22px 20px; box-shadow: 5px 5px 0 var(--hl); }
  .demo dl { grid-template-columns: 1fr; gap: 2px; }
  .demo dd { margin-bottom: 10px; }
  .q, .omr { padding: 20px 18px; }
}
@media print { .top, form.inq { display: none; } }

/* 표 — 시험 구성 */
.scroll { overflow-x: auto; }
table.spec { width: 100%; border-collapse: collapse; font-size: 16px; border-top: 2px solid var(--ink); }
table.spec th, table.spec td { text-align: left; padding: 14px 16px 14px 0; border-bottom: 1px solid var(--rule-strong); vertical-align: top; word-break: keep-all; }
table.spec th { font: 700 13px var(--sans); color: var(--muted); letter-spacing: .04em; }
table.spec td:first-child { font: 700 18px var(--serif); white-space: nowrap; }
.block { border: 2px solid var(--ink); padding: 24px 28px; max-width: 860px; }
.block p { margin: 0; word-break: keep-all; }
.block p + p { margin-top: 10px; }

/* 무료 샘플 — 내려받기 + 미리보기 */
.samples { display: grid; gap: 64px; }
.sample { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.5fr); gap: 48px; align-items: start; border-top: 2px solid var(--ink); padding-top: 28px; }
.sample h3 { font: 700 clamp(24px, 2.6vw, 32px)/1.2 var(--serif); margin: 0 0 4px; }
.sample .meta { color: var(--muted); margin: 0 0 18px; font-size: 15px; word-break: keep-all; }
.sample ul.facts { list-style: none; margin: 0 0 22px; padding: 0; font-size: 15px; }
.sample ul.facts li { padding: 7px 0; border-bottom: 1px solid var(--rule); word-break: keep-all; }
.sample .get { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.sample .get .more { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 15px; }
.thumbs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.thumbs a { display: block; text-decoration: none; color: inherit; }
.thumbs img { display: block; width: 100%; height: auto; border: 1px solid var(--rule-strong); background: #fff; transition: transform .15s, border-color .15s; }
.thumbs a:hover img { transform: translateY(-3px); border-color: var(--ink); }
.thumbs span { display: block; margin-top: 6px; font-size: 13px; color: var(--muted); }
.usage { font-size: 13px; color: var(--muted); margin-top: 6px; word-break: keep-all; }
@media (max-width: 860px) { .sample { grid-template-columns: 1fr; gap: 28px; } .thumbs { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; } }
@media (max-width: 560px) { .thumbs { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* 화면 둘러보기 — 실제 시연 포털 캡처. 브라우저 창 · 태블릿 틀 안에 */
.tour .tabs { display: flex; gap: 0; margin-bottom: 22px; border-bottom: 2px solid var(--ink); }
.tour .tabs button { font: 800 16px var(--sans); padding: 12px 22px; border: 0; background: transparent; color: var(--muted); cursor: pointer; border-bottom: 4px solid transparent; margin-bottom: -2px; }
.tour .tabs button[aria-selected=true] { color: var(--ink); border-bottom-color: var(--moon); }
.tour .shots { list-style: none; margin: 0; padding: 0; display: grid; gap: 44px; }
.tour.on .shots { display: none; }
.tour figure { margin: 0; }
.tour figcaption { margin-top: 16px; max-width: 46em; word-break: keep-all; }
.tour figcaption b { display: block; font: 700 21px/1.3 var(--serif); margin-bottom: 4px; }
.tour figcaption span { color: var(--muted); font-size: 16px; }
.frame { border: 1px solid var(--rule-strong); background: #fff; line-height: 0; }
.frame img { display: block; width: 100%; height: auto; }
.frame.browser { border-radius: 10px 10px 4px 4px; overflow: hidden; box-shadow: 0 1px 0 var(--rule); }
.frame.browser::before { content: ""; display: block; height: 30px; background: var(--soft); border-bottom: 1px solid var(--rule-strong);
  background-image: radial-gradient(circle at 16px 15px, #e04f4f 4.5px, transparent 5px), radial-gradient(circle at 34px 15px, #ffcb57 4.5px, transparent 5px), radial-gradient(circle at 52px 15px, #4fbf8f 4.5px, transparent 5px); }
.frame.tablet { max-width: 760px; margin-inline: auto; padding: 16px; border: 3px solid var(--ink); border-radius: 26px; background: var(--ink); }
.frame.tablet img { border-radius: 10px; }
.tour .picks { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 4px; }
.tour .picks button { font: 700 14px var(--sans); padding: 8px 14px; border: 1.5px solid var(--rule-strong); background: transparent; color: var(--ink); cursor: pointer; border-radius: 999px; }
.tour .picks button[aria-pressed=true] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.tour:not(.on) .picks, .tour:not(.on) .tabs { display: none; }
.tour:not(.on) [data-group][hidden] { display: block; }
.tour-note { font-size: 14px; color: var(--muted); margin-top: 14px; }

/* 요금 */
.price { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: start; }
.price table.spec td:last-child, .price table.spec th:last-child { text-align: right; padding-right: 0; }
.price table.spec td:first-child { font: 700 17px var(--sans); }
.price table.spec tr.free td { color: var(--ok); font-weight: 800; }
.calc { border: 2px solid var(--ink); padding: 24px 26px; background: var(--paper); margin-top: 28px; }
.calc label { display: block; font-weight: 700; font-size: 15px; }
.calc input { font: 800 28px var(--serif); width: 8em; border: 0; border-bottom: 3px solid var(--ink); background: transparent; color: var(--ink); padding: 6px 2px; margin: 6px 8px 0 0; }
.calc input:focus { outline: 0; background: linear-gradient(transparent 85%, var(--hl) 85%); }
.calc .out { font: 800 clamp(30px, 4vw, 44px)/1.1 var(--serif); margin: 14px 0 4px; }
.calc .yr { color: var(--muted); font-size: 15px; margin: 0; }
@media (max-width: 860px) { .price { grid-template-columns: 1fr; gap: 28px; } .frame.tablet { padding: 10px; border-radius: 18px; } }

/* 학원 코드 입구 (/app) */
.enter { max-width: 460px; margin: 0 auto; }
.enter h1 { font: 700 clamp(26px, 5vw, 34px)/1.25 var(--serif); margin: 0 0 12px; }
.enter .sub { margin: 0 0 24px; }
.enter label { display: block; font-weight: 700; margin-bottom: 6px; }
.enter input { width: 100%; box-sizing: border-box; font: 600 20px var(--sans); padding: 14px 14px; border: 2px solid var(--ink); border-radius: var(--radius); background: #fff; color: var(--ink); margin-bottom: 14px; }
.enter .msg { margin-bottom: 14px; }
.enter .note { margin-top: 22px; }

/* 키보드 · 앵커 이동 */
html { scroll-padding-top: 84px; }
a:focus-visible, button:focus-visible, summary:focus-visible, [role=tab]:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; border-radius: 2px; }
.skip { position: absolute; left: 12px; top: -60px; z-index: 20; background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: var(--radius); text-decoration: none; font-weight: 700; }
.skip:focus { top: 10px; }
@media (max-width: 560px) { html { scroll-padding-top: 12px; } }
.frame img { background: var(--soft); }

/* ── 개편: 밝은 첫 화면 · 큰 글씨 ── */
.hero { background: var(--hero); border-bottom: 1px solid var(--rule); padding: 96px 0 112px; background-image: none; }
.hero h1 { font-size: clamp(34px, 4.8vw, 62px); line-height: 1.2; letter-spacing: -.03em; margin-bottom: 26px; }
.hero p.lead { font-size: clamp(17px, 1.9vw, 21px); }
.hero .sheet::before { background: var(--soft); }
.head h2 { font-size: clamp(28px, 3.6vw, 44px); line-height: 1.22; letter-spacing: -.02em; }
section.blk { padding: 88px 0; }
@media (max-width: 860px) { .hero { padding: 56px 0 72px; } section.blk { padding: 60px 0; } }
section.blk.night p.sub, section.blk.night .note { color: var(--night-mute); }

/* 내 계정 */
.acct .head { margin-bottom: 28px; }
.acct h1 { font: 800 clamp(30px, 4vw, 44px)/1.2 var(--sans); letter-spacing: -.02em; margin: 0 0 12px; }
.acct .sec { font-size: 22px; margin: 44px 0 14px; }
.acct-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 40px; align-items: start; }
.panel { border: 2px solid var(--ink); border-radius: var(--radius); padding: 26px 26px 22px; background: #fff; }
.panel.soft { background: var(--soft); border-color: var(--rule-strong); }
.panel h2, .panel h3 { margin: 0 0 12px; font-size: 20px; }
.panel .tabs { display: flex; border-bottom: 2px solid var(--ink); margin: -6px 0 20px; }
.panel .tabs button { font: 800 16px var(--sans); padding: 10px 18px; border: 0; background: transparent; color: var(--muted); cursor: pointer; border-bottom: 4px solid transparent; margin-bottom: -2px; }
.panel .tabs button[aria-selected=true] { color: var(--ink); border-bottom-color: var(--moon); }
.social { display: grid; gap: 10px; margin-bottom: 18px; }
.btn.sns { justify-content: center; border-color: transparent; box-shadow: none; }
.btn.sns.naver { background: #03c75a; color: #fff; }
.btn.sns.kakao { background: #fee500; color: #191919; }
.or { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 14px; }
.or::before, .or::after { content: ""; flex: 1; height: 1px; background: var(--rule-strong); }
.sub-row { display: flex; flex-wrap: wrap; gap: 6px 18px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--rule-strong); }
.sub-row b { font-size: 18px; }
.pill { background: var(--hl); color: #1c2140; border-radius: 999px; padding: 2px 12px; font-size: 14px; font-weight: 700; }
.quote { font-weight: 700; margin: 6px 0 14px; min-height: 1.6em; }
.logout { margin-top: 48px; }
form.inq select { width: 100%; font: inherit; padding: 10px 4px; border: 0; border-bottom: 2px solid var(--rule-strong); background: transparent; color: var(--ink); }
form.panel.inq { margin-top: 18px; }
@media (max-width: 860px) { .acct-grid { grid-template-columns: 1fr; gap: 24px; } .panel { padding: 20px 18px; } }
form.inq label > input[type=email], form.inq label > input[type=password], form.inq label > input[type=number], form.inq label > select { display: block; margin-top: 6px; }
form.inq input[type=email], form.inq input[type=password], form.inq input[type=number] { font: 17px var(--sans); padding: 12px 2px; border: 0; border-bottom: 2px solid var(--rule-strong); border-radius: 0; background: transparent; color: var(--ink); width: 100%; }
form.inq .quote, form.inq .note { margin: 0; }
.btn:disabled { opacity: .45; cursor: not-allowed; box-shadow: none; transform: none; }

/* 자료 구매 */
.shop .pgroup { margin-bottom: 44px; }
.shop .ptitle { font-size: 22px; margin: 0 0 14px; }
.pgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.pcard { border: 2px solid var(--ink); border-radius: var(--radius); padding: 20px 20px 18px; background: #fff; display: flex; flex-direction: column; gap: 8px; }
.pcard h3 { margin: 0; font-size: 18px; }
.pcard .pdesc { margin: 0; color: var(--muted); font-size: 15px; flex: 1; }
.pcard .prow { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 8px; }
.pcard .pprice { font: 800 22px var(--serif); }
.pcard .btn { min-height: 42px; padding: 0 18px; font-size: 15px; }
.ptabs { display: flex; gap: 8px; margin: 12px 0 16px; }
.ptabs button { font: 700 15px var(--sans); padding: 8px 18px; border: 1.5px solid var(--rule-strong); background: transparent; color: var(--ink); border-radius: 999px; cursor: pointer; }
.ptabs button[aria-pressed=true] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.pnums { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 10px; }
.pnum { display: flex; flex-direction: column; gap: 2px; padding: 12px 14px; border: 1.5px solid var(--rule-strong); border-radius: var(--radius); text-decoration: none; color: var(--ink); background: #fff; }
.pnum:hover { border-color: var(--ink); background: var(--hl); }
.pnum b { font-size: 17px; } .pnum span { font-size: 14px; color: var(--muted); }
.pnum:hover span { color: var(--ink); }
.lib-item { padding: 16px 0; border-bottom: 1px solid var(--rule-strong); }
.lib-item h3 { margin: 0 0 8px; font-size: 18px; }
.lib-files { display: flex; flex-wrap: wrap; gap: 8px 10px; }
.lib-files a { display: inline-block; padding: 6px 14px; border: 1.5px solid var(--rule-strong); border-radius: 999px; font-size: 14px; text-decoration: none; color: var(--ink); background: #fff; }
.lib-files a:hover { background: var(--hl); border-color: var(--ink); }
.buycard { border: 2px solid var(--ink); background: var(--hl); border-radius: var(--radius); padding: 22px; margin-bottom: 28px; }
.buycard h2 { margin: 0 0 6px; font-size: 20px; }