:root {
  --ink: #1d1d1b;
  --muted: #66645f;
  --paper: #fbfaf7;
  --white: #ffffff;
  --line: #dedbd4;
  --line-strong: #bdb9b0;
  --accent: #d94f32;
  --accent-soft: #fff3ef;
  color-scheme: light;
  font-family: Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.62;
  word-break: keep-all;
  overflow-wrap: break-word;
}
a { color: inherit; text-underline-offset: 3px; }
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
img { max-width: 100%; }
h1, h2, h3, p { margin-top: 0; }
.page-shell { width: min(1080px, calc(100% - 48px)); margin-inline: auto; }
.home-shell { width: min(940px, calc(100% - 48px)); margin-inline: auto; }
.narrow { width: min(760px, calc(100% - 48px)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.hp-field { position: absolute !important; left: -9999px !important; opacity: 0 !important; }
.skip-link { position: fixed; top: -100px; left: 12px; z-index: 100; background: var(--ink); color: white; padding: 10px 14px; }
.skip-link:focus { top: 12px; }

/* shared header */
.prelaunch-strip {
  min-height: 35px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid #302f2c;
  padding: 7px 20px;
  background: #22221f;
  color: #f7f5ef;
  font-size: 12px;
  text-align: center;
}
.prelaunch-strip strong { color: #ffd1c6; }
.prelaunch-strip span { color: #c7c4bc; }
.product-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: rgba(251,250,247,.96);
  backdrop-filter: blur(12px);
}
.product-nav-inner { min-height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.product-brand { display: inline-flex; align-items: baseline; gap: 10px; text-decoration: none; font-size: 20px; font-weight: 900; letter-spacing: -.045em; }
.product-brand small { color: var(--muted); font-size: 11px; font-weight: 650; letter-spacing: 0; }
.product-nav-links { display: flex; align-items: center; gap: 20px; font-size: 13px; }
.product-nav-links a { color: var(--muted); font-weight: 700; text-decoration: none; }
.product-nav-links a:hover { color: var(--ink); }
.product-nav-links .back-link { border-left: 1px solid var(--line); padding-left: 20px; color: var(--ink); }

/* home */
.home-hero { padding: 94px 0 76px; }
.plain-label, .section-label, .for-label {
  margin-bottom: 18px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: -.01em;
}
.home-hero h1 {
  max-width: 850px;
  margin-bottom: 30px;
  font-size: clamp(44px, 8vw, 76px);
  line-height: 1.06;
  letter-spacing: -.065em;
  font-weight: 880;
}
.home-hero > .home-shell > p:last-child { max-width: 720px; margin-bottom: 0; color: var(--muted); font-size: 18px; }
.idea-directory { border-top: 1px solid var(--line); }
.directory-row {
  --row-accent: var(--accent);
  display: grid;
  grid-template-columns: 52px minmax(0,1fr) auto;
  gap: 24px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 30px 14px 30px 0;
  text-decoration: none;
  transition: background .15s ease, padding .15s ease;
}
.directory-row:hover { background: var(--white); padding-left: 14px; }
.directory-number { align-self: start; padding-top: 5px; color: var(--row-accent); font-size: 12px; font-weight: 900; }
.directory-audience { color: var(--muted); font-size: 12px; font-weight: 700; }
.directory-row h3 { margin: 2px 0 3px; font-size: clamp(29px, 5vw, 43px); line-height: 1.1; letter-spacing: -.055em; }
.directory-row p { margin-bottom: 0; color: var(--muted); font-size: 15px; }
.directory-row > strong { color: var(--row-accent); font-size: 13px; white-space: nowrap; }
.home-explainer { margin-top: 110px; border-block: 1px solid var(--line); padding: 80px 0; background: var(--white); }
.home-explainer-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 72px; align-items: start; }
.home-explainer h2 { margin-bottom: 0; font-size: clamp(34px, 5vw, 50px); line-height: 1.15; letter-spacing: -.05em; }
.home-explainer p, .home-explainer li { color: var(--muted); }
.home-explainer ul { margin: 26px 0; padding-left: 21px; }
.home-explainer li { margin: 9px 0; }
.home-explainer li strong { color: var(--ink); }
.text-link { display: inline-flex; color: var(--ink); font-size: 14px; font-weight: 850; text-decoration-thickness: 1px; }

/* product detail */
.product-hero { padding: 82px 0 88px; }
.product-hero-grid { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(350px,.9fr); gap: 76px; align-items: center; }
.product-intro h1 {
  white-space: pre-line;
  margin-bottom: 25px;
  font-size: clamp(46px, 6.7vw, 74px);
  line-height: 1.03;
  letter-spacing: -.066em;
  font-weight: 900;
}
.product-summary { max-width: 660px; margin-bottom: 0; color: #53514d; font-size: 18px; line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; margin-top: 30px; }
.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ink);
  border-radius: 6px;
  padding: 11px 18px;
  background: var(--ink);
  color: white;
  font-weight: 850;
  text-decoration: none;
  cursor: pointer;
  transition: transform .14s ease, background .14s ease;
}
.button:hover { transform: translateY(-1px); }
.button.accent { border-color: var(--accent); background: var(--accent); }
.button.full { width: 100%; }
.button[disabled] { opacity: .55; cursor: wait; transform: none; }
.honest-note { max-width: 660px; margin: 27px 0 0; border-left: 3px solid var(--line-strong); padding-left: 14px; color: var(--muted); font-size: 12px; }
.honest-note strong { color: var(--ink); }
.product-example { margin: 0; border: 1px solid var(--line-strong); background: var(--white); box-shadow: 10px 10px 0 var(--accent-soft); }
.product-example figcaption { display: grid; gap: 3px; border-bottom: 1px solid var(--line); padding: 20px 22px; }
.product-example figcaption span { color: var(--accent); font-size: 11px; font-weight: 850; }
.product-example figcaption strong { font-size: 20px; letter-spacing: -.03em; }
.product-example figcaption small { color: var(--muted); }
.example-list { padding: 4px 22px; }
.example-row { display: grid; grid-template-columns: 82px minmax(0,1fr) auto; gap: 12px; align-items: center; border-bottom: 1px solid #ece9e2; padding: 16px 0; font-size: 13px; }
.example-row:last-child { border-bottom: 0; }
.example-row time { color: var(--muted); font-size: 11px; }
.example-row span { color: var(--accent); font-size: 11px; font-weight: 800; text-align: right; }
.product-example > p { margin: 0; border-top: 1px solid var(--line); padding: 13px 22px; color: var(--muted); font-size: 10px; }

.content-section { border-top: 1px solid var(--line); padding: 86px 0; }
.muted-section { background: var(--white); }
.split-heading { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; }
.split-heading h2, .section-copy h2, .reality-grid h2, .faq-grid h2, .join-copy h2 {
  margin-bottom: 0;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.12;
  letter-spacing: -.055em;
}
.moment-list { border-top: 1px solid var(--line-strong); }
.moment { display: grid; grid-template-columns: 36px 1fr; gap: 18px; border-bottom: 1px solid var(--line); padding: 22px 0; }
.moment > span { color: var(--accent); font-size: 11px; font-weight: 850; }
.moment h3 { margin-bottom: 6px; font-size: 19px; letter-spacing: -.025em; }
.moment p { margin-bottom: 0; color: var(--muted); font-size: 14px; }
.section-copy { max-width: 730px; margin-bottom: 52px; }
.section-copy > p:last-child { max-width: 630px; margin-top: 18px; margin-bottom: 0; color: var(--muted); }
.workflow-list { border-top: 1px solid var(--line-strong); }
.workflow-step { display: grid; grid-template-columns: 64px minmax(0,1fr); gap: 24px; border-bottom: 1px solid var(--line); padding: 28px 0; }
.workflow-step > span { width: 38px; height: 38px; display: grid; place-items: center; border: 1px solid var(--accent); border-radius: 50%; color: var(--accent); font-weight: 900; }
.workflow-step h3 { margin-bottom: 6px; font-size: 22px; }
.workflow-step p { max-width: 720px; margin-bottom: 6px; color: var(--muted); }
.workflow-step small { color: var(--accent); font-weight: 750; }
.reality-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px 52px; align-items: start; }
.comparison { border-top: 1px solid var(--line-strong); }
.comparison > div { border-bottom: 1px solid var(--line); padding: 20px 0; }
.comparison span { color: var(--accent); font-size: 12px; font-weight: 850; }
.comparison p { margin: 5px 0 0; color: var(--muted); }
.boundary-box, .source-box { min-height: 220px; border: 1px solid var(--line); padding: 25px; background: var(--white); }
.boundary-box h3, .source-box h3 { font-size: 18px; }
.boundary-box ul { margin: 0; padding-left: 19px; }
.boundary-box li, .source-box p { margin: 8px 0; color: var(--muted); font-size: 14px; }
.source-box { border-color: var(--accent); background: var(--accent-soft); }
.source-box a { display: inline-block; margin-top: 8px; color: var(--accent); font-size: 12px; font-weight: 850; }
.faq-section { background: #f3f1eb; }
.faq-grid { display: grid; grid-template-columns: .78fr 1.22fr; gap: 74px; }
.faq-list { border-top: 1px solid var(--line-strong); }
.faq-list details { border-bottom: 1px solid var(--line-strong); padding: 20px 0; }
.faq-list summary { cursor: pointer; font-size: 17px; font-weight: 800; list-style-position: outside; }
.faq-list p { margin: 12px 0 0; color: var(--muted); font-size: 14px; }

/* form */
.join-section { border-top: 1px solid var(--line); padding: 96px 0; background: var(--accent-soft); }
.join-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 72px; align-items: start; }
.join-copy { position: sticky; top: 104px; }
.join-copy > p:not(.section-label) { margin-top: 20px; color: var(--muted); }
.trust-list { margin: 25px 0 0; padding: 0; list-style: none; }
.trust-list li { border-top: 1px solid color-mix(in srgb, var(--accent), transparent 70%); padding: 10px 0; color: var(--muted); font-size: 12px; }
.lead-form { border: 1px solid var(--line-strong); background: var(--white); padding: 30px; }
.field { margin-bottom: 22px; }
.field label, .field legend { display: block; margin-bottom: 8px; font-size: 13px; font-weight: 850; }
.field small { display: block; margin-top: 7px; color: var(--muted); font-size: 11px; }
.required { color: var(--accent); }
.field input[type="email"], .field textarea, .field select, .privacy-form input[type="email"], .privacy-form textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  padding: 13px 14px;
  background: var(--white);
  color: var(--ink);
  outline: none;
}
.field textarea, .privacy-form textarea { min-height: 126px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus, .privacy-form input:focus, .privacy-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.optional-fields { margin: 4px 0 22px; border-block: 1px solid var(--line); padding: 15px 0 0; }
.optional-fields summary { margin-bottom: 15px; cursor: pointer; color: var(--muted); font-size: 12px; font-weight: 800; }
.clean-fieldset { border: 0; padding: 0; margin-inline: 0; }
.choice-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px; }
.choice { position: relative; }
.choice input { position: absolute; opacity: 0; pointer-events: none; }
.choice span { min-height: 43px; display: flex; align-items: center; border: 1px solid var(--line); padding: 9px 11px; color: var(--muted); font-size: 12px; cursor: pointer; }
.choice input:checked + span { border-color: var(--accent); background: var(--accent-soft); color: var(--ink); }
.check { display: grid; grid-template-columns: 18px 1fr; gap: 9px; align-items: start; margin: 13px 0; color: var(--muted); font-size: 12px; }
.check input { margin: 3px 0 0; accent-color: var(--accent); }
.check a { color: var(--ink); font-weight: 800; }
.check.consent { margin: 17px 0; }
.form-status { min-height: 23px; margin: 10px 0 0; font-size: 12px; }
.form-status.error { color: #ad2727; }
.form-status.success { color: #196a42; }
.success-panel { display: none; border: 1px solid #72a985; background: #f2fbf5; padding: 30px; }
.success-panel.show { display: block; }
.success-panel > strong { color: #196a42; font-size: 12px; }
.success-panel h3 { margin: 8px 0; font-size: 26px; }
.success-panel p { color: var(--muted); }
.microcopy { color: var(--muted); font-size: 11px; }
.share-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.share-link { border: 1px solid #99bea5; border-radius: 4px; background: white; padding: 8px 11px; font-size: 12px; font-weight: 800; text-decoration: none; cursor: pointer; }

/* privacy */
.privacy-page { padding: 78px 0 100px; }
.privacy-page h1 { margin-bottom: 24px; font-size: clamp(42px, 7vw, 68px); line-height: 1.05; letter-spacing: -.06em; }
.privacy-page .hero-copy { color: var(--muted); font-size: 17px; }
.privacy-card { border-top: 1px solid var(--line-strong); padding: 28px 0; }
.privacy-card h2 { font-size: 22px; letter-spacing: -.03em; }
.privacy-card p, .privacy-card li { color: var(--muted); font-size: 14px; }
.privacy-form { display: grid; gap: 12px; }
.privacy-form label { font-size: 13px; font-weight: 850; }

/* footer */
.site-footer { border-top: 1px solid var(--line); padding: 42px 0 54px; background: var(--paper); }
.footer-inner { display: flex; justify-content: space-between; align-items: start; gap: 28px; color: var(--muted); font-size: 12px; }
.footer-inner strong { color: var(--ink); }
.footer-inner p { margin: 3px 0 0; }
.footer-links { display: flex; flex-wrap: wrap; gap: 16px; }

@media (max-width: 880px) {
  .product-hero-grid, .split-heading, .faq-grid, .join-grid, .home-explainer-grid { grid-template-columns: 1fr; gap: 44px; }
  .product-hero { padding-top: 64px; }
  .product-example { max-width: 620px; }
  .reality-grid { grid-template-columns: 1fr; }
  .join-copy { position: static; }
}

@media (max-width: 660px) {
  .page-shell, .home-shell, .narrow { width: min(100% - 28px, 1080px); }
  .prelaunch-strip { align-items: flex-start; gap: 3px; flex-direction: column; text-align: left; padding-inline: 14px; }
  .product-nav-inner { min-height: 60px; }
  .product-brand { display: grid; gap: 0; font-size: 18px; }
  .product-nav-links a:not(.back-link) { display: none; }
  .product-nav-links .back-link { border-left: 0; padding-left: 0; }
  .home-hero { padding: 64px 0 52px; }
  .home-hero h1 { font-size: clamp(40px, 12.6vw, 58px); }
  .home-hero > .home-shell > p:last-child { font-size: 16px; }
  .directory-row { grid-template-columns: 32px 1fr; gap: 13px; padding: 25px 0; }
  .directory-row:hover { padding-left: 0; }
  .directory-row > strong { grid-column: 2; }
  .directory-row h3 { font-size: 34px; }
  .home-explainer { margin-top: 76px; padding: 62px 0; }
  .product-hero { padding: 54px 0 65px; }
  .product-hero-grid { gap: 42px; }
  .product-intro h1 { font-size: clamp(42px, 13vw, 61px); }
  .product-summary { font-size: 16px; }
  .content-section { padding: 64px 0; }
  .section-copy { margin-bottom: 36px; }
  .workflow-step { grid-template-columns: 46px 1fr; gap: 14px; }
  .boundary-box, .source-box { min-height: auto; }
  .join-section { padding: 66px 0; }
  .lead-form { padding: 22px; }
  .choice-grid { grid-template-columns: 1fr; }
  .example-row { grid-template-columns: 66px minmax(0,1fr); }
  .example-row span { grid-column: 2; text-align: left; }
  .footer-inner { display: block; }
  .footer-links { margin-top: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* Dark mode */
.dark-mode {
  --ink: #e0e0e0;
  --muted: #aaa99f;
  --paper: #121212;
  --white: #1e1e1e;
  --line: #2f2f2f;
  --line-strong: #4a4a4a;
  --accent: #ff6b6b;
  --accent-soft: #2c1c1c;
  color-scheme: dark;
}