:root {
  --bg: #fbfaf7;
  --bg-alt: #f2efe8;
  --card: #ffffff;
  --ink: #1b1d1f;
  --ink-2: #4a4f55;
  --muted: #7a7f86;
  --line: #e4e0d6;
  --accent: #1f5f4a;
  --accent-ink: #ffffff;
  --accent-soft: #e3efe9;
  --radius: 16px;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-size: 16px; line-height: 1.7; word-break: keep-all; -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
img { max-width: 100%; display: block; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.wrap.narrow { max-width: 760px; }

/* nav */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(251,250,247,.88); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.nav-in { display: flex; align-items: center; gap: 24px; height: 64px; }
.logo { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; font-size: 19px; text-decoration: none; letter-spacing: -.02em; margin: 0; }
.logo-mark { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 8px; background: var(--accent); color: var(--accent-ink); font-size: 15px; }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { text-decoration: none; color: var(--ink-2); font-size: 15px; }
.nav-links a:hover { color: var(--ink); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 14px 24px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font: inherit; font-weight: 700; text-decoration: none; border: 0; cursor: pointer; transition: transform .15s, background .15s; }
.btn:hover { background: #174a39; transform: translateY(-1px); }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--line); }
.btn-ghost:hover { background: var(--card); }

/* hero */
.hero { padding: 96px 0 80px; }
.eyebrow { margin: 0 0 12px; color: var(--accent); font-weight: 700; font-size: 14px; letter-spacing: .02em; }
h1 { margin: 0; font-size: clamp(32px, 5.4vw, 56px); line-height: 1.25; letter-spacing: -.035em; font-weight: 800; }
.lead { max-width: 640px; margin: 24px 0 0; font-size: 18px; color: var(--ink-2); }
.hero-free { display: inline-block; margin: 28px 0 0; padding: 10px 16px; border-radius: 12px; background: var(--accent-soft); color: var(--ink-2); font-size: 15px; }
.hero-free b { color: var(--accent); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.proof { list-style: none; padding: 0; margin: 64px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; border-top: 1px solid var(--line); padding-top: 28px; }
.proof strong { display: block; font-size: 22px; letter-spacing: -.02em; }
.proof span { color: var(--muted); font-size: 14px; }

/* sections */
.section { padding: 96px 0; }
.section.alt { background: var(--bg-alt); }
h2 { margin: 0; font-size: clamp(26px, 3.6vw, 38px); line-height: 1.3; letter-spacing: -.03em; font-weight: 800; }
.section-lead { max-width: 680px; margin: 14px 0 0; color: var(--ink-2); }
.note { margin: 24px 0 0; color: var(--muted); font-size: 14px; }

/* cards */
.cards { display: grid; gap: 20px; margin-top: 44px; }
.cards.three { grid-template-columns: repeat(3, 1fr); }
.cards.two { grid-template-columns: repeat(2, 1fr); }
.card { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.card h3 { margin: 0; font-size: 21px; letter-spacing: -.02em; }
.plan-for { margin: 4px 0 0; color: var(--muted); font-size: 15px; }
.price { margin: 20px 0 0; font-size: 26px; font-weight: 800; letter-spacing: -.02em; }
.period { margin: 0; color: var(--muted); font-size: 14px; }
.plan.featured { border: 2px solid var(--accent); }
.badge { position: absolute; top: -13px; left: 24px; background: var(--accent); color: var(--accent-ink); font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px; }
.checks { list-style: none; padding: 0; margin: 22px 0 0; border-top: 1px solid var(--line); padding-top: 18px; }
.checks li { position: relative; padding-left: 26px; margin: 8px 0; color: var(--ink-2); font-size: 15px; }
.checks li::before { content: ''; position: absolute; left: 2px; top: 7px; width: 14px; height: 14px; border-radius: 50%; background: var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 14'%3E%3Cpath d='M3.5 7.2l2.3 2.3 4.7-4.9' fill='none' stroke='%231f5f4a' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat; }
.small-list { margin: 28px 0 0; padding-left: 20px; color: var(--ink-2); font-size: 15px; }
.small-list li { margin: 6px 0; }

/* work */
.work-grid { grid-template-columns: 1fr; }
.work { padding: 0; overflow: hidden; text-decoration: none; transition: transform .2s, box-shadow .2s; }
.work:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(27,29,31,.08); }
.work img { width: 100%; height: auto; aspect-ratio: 1200 / 630; object-fit: cover; border-bottom: 1px solid var(--line); }
.work-body { padding: 22px 24px 24px; }
.work-body p { margin: 8px 0 0; color: var(--ink-2); font-size: 15px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tags span { font-size: 12px; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 3px 10px; border-radius: 999px; }
.work-grid .work { display: grid; grid-template-columns: 1.4fr 1fr; }
.work-grid .work img { height: 100%; border-bottom: 0; border-right: 1px solid var(--line); }
.work-grid .work .work-body { align-self: center; padding: 32px; }

.sample img { aspect-ratio: 1200 / 750; object-position: top; }
.sample .work-body { padding: 20px 22px 22px; }

/* steps */
.steps { list-style: none; padding: 0; margin: 44px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: step; }
.steps li { counter-increment: step; border-top: 2px solid var(--accent); padding-top: 16px; }
.steps li::before { content: counter(step, decimal-leading-zero); color: var(--accent); font-weight: 800; font-size: 14px; }
.steps h3 { margin: 4px 0 0; font-size: 18px; }
.steps p { margin: 8px 0 0; color: var(--ink-2); font-size: 15px; }

/* faq */
.faq { margin-top: 36px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 36px 20px 0; font-weight: 700; font-size: 17px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 4px; top: 16px; font-size: 24px; font-weight: 400; color: var(--muted); }
.faq details[open] summary::after { content: '−'; }
.faq details p { margin: 0 0 22px; color: var(--ink-2); }

/* contact */
.contact { background: var(--bg-alt); }
.form { margin-top: 36px; display: grid; gap: 16px; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: grid; gap: 6px; font-size: 14px; font-weight: 600; color: var(--ink-2); }
.form input, .form select, .form textarea { font: inherit; font-size: 16px; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; width: 100%; }
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
.form .btn { justify-self: start; }
.kakao-box { margin-top: 32px; display: flex; align-items: center; justify-content: space-between; gap: 16px 24px; flex-wrap: wrap; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
.kakao-title { margin: 0; font-weight: 800; font-size: 18px; }
.kakao-sub { margin: 2px 0 0; color: var(--ink-2); font-size: 14px; }
.btn-kakao { background: #fee500; color: #191919; }
.btn-kakao:hover { background: #f5dc00; }
.or { margin: 28px 0 0; color: var(--muted); font-size: 14px; text-align: center; }
.or + .form { margin-top: 16px; }
.form-hint { margin: 0; color: var(--muted); font-size: 14px; }

/* footer */
.footer { padding: 48px 0 64px; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
.footer p { margin: 12px 0 0; }
.footer .logo { color: var(--ink); }
.footer a { color: var(--ink-2); }

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav .btn-sm { margin-left: auto; }
  .cards.three, .cards.two, .work-grid { grid-template-columns: 1fr; }
  .work-grid .work { display: block; }
  .work-grid .work img { height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .work-grid .work .work-body { padding: 22px 24px 24px; }
  .steps { grid-template-columns: 1fr; }
  .proof { grid-template-columns: 1fr; gap: 12px; }
  .hero { padding: 64px 0 56px; }
  .section { padding: 72px 0; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .form .row { grid-template-columns: 1fr; }
  .card { padding: 22px; }
  .card.work { padding: 0; }
}