/* 두하루 사이트 · 나(파랑)·너(분홍)·우리(보라, 겹침) 세 색. 위쪽 탭으로 주제를 나눔 */
:root {
  --bg: #FAF8FF;
  --surface: #FFFFFF;
  --ink: #221F33;
  --muted: #645F7A;
  --line: #E4E0F0;
  --me: #5A87E0;
  --you: #E87793;
  --us: #7E55D0;
  --us-soft: #EFE9FB;
  --shadow: 0 18px 40px -20px rgb(60 40 120 / .35);
  --sans: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14121C; --surface: #1D1A28; --ink: #EEEBF7; --muted: #A8A3BE; --line: #2F2B3F;
    --me: #86A8EE; --you: #F29AB0; --us: #B79AF2; --us-soft: #2A2340; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 16px; line-height: 1.7; word-break: keep-all; overflow-wrap: anywhere; }
img { max-width: 100%; display: block; }
a { color: var(--us); }
.wrap { max-width: 1080px; margin: 0 auto; padding-inline: 20px; }
.doc { max-width: 720px; }
h1 { font-size: clamp(32px, 6.4vw, 54px); line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 24px; text-wrap: balance; }
h2 { font-size: clamp(24px, 4vw, 32px); line-height: 1.3; letter-spacing: -0.01em; margin: 0 0 20px; text-wrap: balance; }
.eyebrow { color: var(--us); font-weight: 700; font-size: 14px; margin: 0 0 14px; letter-spacing: .02em; }
.lead { font-size: clamp(16px, 2.2vw, 18px); color: var(--muted); margin: 0 0 24px; max-width: 40em; text-wrap: pretty; }
p, li, .card p, .mini span, .topic span { text-wrap: pretty; }
.meta { color: var(--muted); font-size: 14px; }

/* 머리말 + 탭 */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 90%, transparent); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.top .bar { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 18px; flex: none; }
.brand img { width: 30px; height: 30px; border-radius: 8px; }
.tabs { display: flex; gap: 26px; margin-left: auto; margin-right: 8px; align-self: stretch; }
.tabs a { position: relative; display: flex; align-items: center; color: var(--muted); text-decoration: none; font-size: 15px; font-weight: 500; white-space: nowrap; }
.tabs a:hover { color: var(--ink); }
.tabs a[aria-current="page"] { color: var(--ink); font-weight: 700; }
.tabs a[aria-current="page"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--ink); border-radius: 2px; }
.get { flex: none; display: inline-flex; align-items: center; gap: 6px; text-decoration: none; color: var(--ink); font-weight: 700; font-size: 14px; padding: 7px 14px 7px 16px; border-radius: 999px; border: 1.5px solid var(--ink); }
.get::after { content: "↓"; font-size: 13px; }
.get:hover { background: var(--ink); color: var(--bg); }
@media (max-width: 799px) {
  .top .bar { flex-wrap: wrap; height: auto; min-height: 56px; padding-top: 8px; padding-inline: 16px; }
  .top .bar .get { margin-left: auto; padding: 6px 12px 6px 14px; font-size: 13.5px; }
  .tabs { order: 3; width: calc(100% + 32px); margin: 6px -16px 0; padding: 0 16px; gap: 22px; height: 40px; overflow-x: auto; scrollbar-width: none; -webkit-overflow-scrolling: touch; border-top: 1px solid var(--line); }
  .tabs::-webkit-scrollbar { display: none; }
  .tabs a { font-size: 14.5px; }
}

/* 버튼 */
.cta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 22px; border-radius: 14px; background: var(--ink); color: var(--bg); text-decoration: none; font-weight: 700; font-size: 16px; }
.btn svg { width: 19px; height: 19px; fill: currentColor; }
.btn.primary { background: var(--us); color: #fff; }
.btn.line { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.big { padding: 16px 28px; font-size: 17px; }
.tags { display: flex; flex-wrap: wrap; gap: 4px 14px; margin: 22px 0 0; }
.tags span { color: var(--us); font-weight: 600; font-size: 15px; }
/* 스토어 배지 */
.stores { display: flex; flex-wrap: wrap; gap: 10px; }
.store { display: inline-flex; align-items: center; gap: 10px; min-width: 168px; padding: 9px 20px 9px 15px; border-radius: 12px; background: #0B0B0F; color: #fff; text-decoration: none; border: 1px solid rgb(255 255 255 / .14); transition: transform .15s; }
.store:hover { transform: translateY(-2px); }
.store svg { width: 26px; height: 26px; fill: #fff; flex: none; }
.store > span { text-align: left; }
.store small { display: block; font-size: 11px; line-height: 1.2; opacity: .85; }
.store b { display: block; font-size: 19px; line-height: 1.15; letter-spacing: -0.01em; font-weight: 700; }
.store.soon { background: transparent; color: var(--ink); border: 1px dashed var(--muted); }
.store.soon:hover { transform: none; }
.store.soon small { color: var(--muted); opacity: 1; }
@media (max-width: 420px) { .store { min-width: 0; flex: 1; padding-inline: 12px; } .store b { font-size: 17px; } }

/* 폰 화면: 위쪽만 보이게 잘라서 짧게 */
.phone { aspect-ratio: 9 / 15; width: 100%; border-radius: 26px; overflow: hidden; border: 6px solid var(--surface); outline: 1px solid var(--line); box-shadow: var(--shadow); background: var(--surface); }
.phone img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.phones { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; max-width: 420px; margin-inline: auto; width: 100%; }
.phones .phone:nth-child(2) { transform: translateY(28px); }

/* 페이지 머리 */
.head { padding-block: 48px 24px; }
@media (min-width: 800px) { .head { padding-block: 80px 32px; } }
.sec { padding-block: 40px 8px; }

/* 홈 */
.hero { display: grid; gap: 36px; align-items: center; padding-block: 40px 24px; }
@media (min-width: 860px) { .hero { grid-template-columns: 1.1fr 1fr; padding-block: 72px 40px; } }
.hero h1 .me { color: var(--me); } .hero h1 .you { color: var(--you); }
.topics { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; padding-block: 40px 8px; }
@media (min-width: 860px) { .topics { grid-template-columns: repeat(4, 1fr); } }
.topic { display: flex; flex-direction: column; gap: 8px; padding: 18px; border-radius: 18px; background: var(--surface); border: 1px solid var(--line); text-decoration: none; color: var(--ink); transition: transform .2s, border-color .2s; }
.topic:hover { transform: translateY(-3px); border-color: var(--ink); }
.topic .num { font-size: 13px; font-weight: 800; color: var(--us); letter-spacing: .08em; }
.topic b { font-size: 16px; }
.topic span { font-size: 14px; color: var(--muted); line-height: 1.5; }
.topic i { font-style: normal; color: var(--us); font-weight: 700; font-size: 14px; margin-top: auto; }

/* 만든 이유 */
.story { display: grid; gap: 28px; }
@media (min-width: 860px) { .story { grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; } }
.quote { font-size: clamp(22px, 3.6vw, 30px); font-weight: 800; line-height: 1.45; margin: 0 0 28px; text-wrap: balance; }
.quote em { font-style: normal; color: var(--us); }
.story p { margin: 0 0 14px; font-size: 17px; }
.scatter { display: grid; gap: 8px; margin-top: 8px; }
.scatter div { display: flex; gap: 12px; align-items: baseline; padding: 12px 16px; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); }
.scatter b { min-width: 6.5em; font-size: 14px; color: var(--muted); font-weight: 600; }
.scatter span { font-size: 15px; }
.scatter .arrow { justify-content: center; border: 0; background: none; padding: 0; color: var(--us); font-weight: 800; }
.scatter .to { background: var(--us-soft); border-color: transparent; }
.scatter .to b { color: var(--us); }
.values { display: grid; gap: 12px; margin-top: 8px; }
@media (min-width: 700px) { .values { grid-template-columns: repeat(3, 1fr); } }

/* 카드 공통 */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 20px; }
.card h3 { margin: 0 0 10px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* 핵심 기능: 칩을 누르면 화면과 설명이 바뀜 */
.chips { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; padding: 4px 0 16px; margin: 0; }
.chips::-webkit-scrollbar { display: none; }
.chip { flex: none; font: inherit; font-size: 15px; font-weight: 700; padding: 9px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); color: var(--muted); cursor: pointer; }
.chip[aria-selected="true"] { background: var(--ink); border-color: var(--ink); color: var(--bg); }
.panel { display: grid; gap: 28px; align-items: center; background: var(--surface); border: 1px solid var(--line); border-radius: 24px; padding: 24px; }
.panel[hidden] { display: none; }
@media (min-width: 800px) { .panel { grid-template-columns: 1fr 260px; gap: 48px; padding: 40px; } }
.panel .phone { max-width: 230px; margin-inline: auto; }
.panel h3 { font-size: clamp(21px, 3vw, 26px); margin: 0 0 16px; line-height: 1.35; }
.panel p { margin: 0 0 12px; color: var(--muted); }
.panel ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.panel li { padding-left: 24px; position: relative; font-size: 15px; }
.panel li::before, .plan li::before { content: ""; position: absolute; left: 3px; top: .55em; width: 11px; height: 6px; border-left: 2.5px solid var(--us); border-bottom: 2.5px solid var(--us); transform: rotate(-45deg); }
.more { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; }
@media (min-width: 800px) { .more { grid-template-columns: repeat(4, 1fr); } }
.mini { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 16px; }
.mini .ico { font-size: 20px; line-height: 1; display: block; margin-bottom: 8px; }
.mini b { display: block; font-size: 15px; margin-bottom: 4px; }
.mini span { font-size: 13.5px; color: var(--muted); line-height: 1.5; display: block; margin-top: 2px; }

/* 플러스 */
.plans { display: grid; gap: 14px; }
@media (min-width: 760px) { .plans { grid-template-columns: 1fr 1fr; } }
.plan { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 24px; display: flex; flex-direction: column; gap: 16px; }
.plan.plus { border: 2px solid var(--us); box-shadow: var(--shadow); }
.plan h3 { margin: 0; font-size: 19px; }
.price { font-size: 30px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.2; }
.price small { font-size: 15px; font-weight: 600; color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.plan li { padding-left: 24px; position: relative; font-size: 15px; }
.trial { align-self: flex-start; font-size: 13px; font-weight: 800; color: #fff; background: var(--you); border-radius: 999px; padding: 4px 12px; }
.fine { font-size: 13px; color: var(--muted); margin: 0; }
.compare { width: 100%; border-collapse: collapse; font-size: 15px; background: var(--surface); border-radius: 18px; overflow: hidden; }
.compare th, .compare td { padding: 12px 14px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.compare thead th { font-size: 14px; color: var(--muted); }
.compare td:last-child { color: var(--us); font-weight: 600; }
.tablewrap { border: 1px solid var(--line); border-radius: 18px; overflow-x: auto; }
.compare tr:last-child td { border-bottom: 0; }

/* 활용법: 단계 */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; counter-reset: s; }
@media (min-width: 800px) { .steps { grid-template-columns: 1fr 1fr; } }
.steps li { counter-increment: s; position: relative; padding: 18px 18px 18px 62px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; }
.steps li::before { content: counter(s); position: absolute; left: 18px; top: 18px; width: 30px; height: 30px; border-radius: 50%; background: var(--us); color: #fff; font-weight: 800; font-size: 14px; display: grid; place-items: center; }
.steps h3 { margin: 0 0 8px; font-size: 16.5px; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }
.steps .when { display: inline-block; font-size: 12px; font-weight: 700; color: var(--us); margin-bottom: 4px; }

/* 아래쪽 이어보기 + 받기 */
.next { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: center; margin-top: 40px; padding: 22px; border-radius: 20px; background: var(--us-soft); }
.next p { margin: 0; font-weight: 700; }
.next a.go { color: var(--us); font-weight: 800; text-decoration: none; }

/* 꼬리말 */
.foot { border-top: 1px solid var(--line); margin-top: 64px; padding-block: 28px 40px; font-size: 13px; color: var(--muted); }
.foot .wrap { display: grid; gap: 8px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.foot nav a { color: var(--ink); text-decoration: none; font-weight: 600; }

/* 문서 (약관·삭제·도움말) */
.page { padding-block: 40px 0; }
.page h1 { font-size: clamp(28px, 5vw, 36px); margin-bottom: 20px; }
.page h2 { font-size: 20px; margin: 36px 0 14px; padding-top: 18px; border-top: 1px solid var(--line); }
.page h3 { font-size: 16px; margin: 22px 0 8px; }
.page ul, .page ol { margin: 0; padding-left: 1.2em; }
.page li { margin: 4px 0; }
.box { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 20px 22px; margin-top: 16px; }
.box h2 { border: 0; padding: 0; margin: 0 0 10px; font-size: 18px; }
.warn { color: #D04A5C; font-weight: 600; }
kbd { font-family: inherit; font-size: 14px; padding: 1px 8px; border: 1px solid var(--line); border-bottom-width: 2px; border-radius: 6px; background: var(--us-soft); }
.page table { width: 100%; border-collapse: collapse; font-size: 15px; }
.page th, .page td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
.page th { color: var(--muted); font-weight: 600; width: 30%; }
.mail { font-weight: 700; user-select: all; }
details { border-bottom: 1px solid var(--line); padding-block: 14px; }
summary { font-weight: 700; cursor: pointer; }
details p { margin: 8px 0 0; color: var(--muted); }

/* 나타나기 */
.reveal { animation: up .5s ease both; }
@keyframes up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .reveal { animation: none; } }
.btn.ghost { background: transparent; color: var(--muted); border: 1px solid var(--line); font-weight: 600; }