/* ClarioSync Works — 공통 스타일. 색은 전부 토큰으로만 쓴다. */
:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --surface-2: #eef0ea;
  --ink: #12151c;
  --ink-2: #4a505c;
  --ink-3: #7b8190;
  --line: #dfe2da;
  --accent: #2563eb;
  --accent-ink: #ffffff;
  --accent-soft: #eff6ff;
  --mark: #2563eb;
  --hl: #dbeafe;
  --good: #1f8a4c;
  --warn: #b7791f;
  --bad: #c2372b;
  --radius: 18px;
  --radius-sm: 10px;
  --og-bg: #0b0d12; --og-ink: #ffffff; --og-mark: #93c5fd;
  --shadow: 0 1px 2px rgba(18, 21, 28, .04), 0 8px 24px rgba(18, 21, 28, .06);
  --max: 1160px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1015; --surface: #161922; --surface-2: #1d212c; --ink: #eef0f4; --ink-2: #b4bac6;
    --ink-3: #858c9b; --line: #2a2f3b; --accent: #3b82f6; --accent-ink: #ffffff; --accent-soft: rgba(59,130,246,.15);
    --mark: #3b82f6; --hl: rgba(59,130,246,.32); --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0e1015; --surface: #161922; --surface-2: #1d212c; --ink: #eef0f4; --ink-2: #b4bac6;
  --ink-3: #858c9b; --line: #2a2f3b; --accent: #3b82f6; --accent-ink: #ffffff; --accent-soft: rgba(59,130,246,.15);
  --mark: #3b82f6; --hl: rgba(59,130,246,.32); --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25); color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  font-size: 16px; line-height: 1.65; word-break: keep-all; overflow-wrap: anywhere;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--bg); padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* header */
.site-header { position: sticky; top: 0; z-index: 50; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: saturate(160%) blur(12px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 24px; height: 64px; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -.02em; text-decoration: none; font-size: 18px; }
.logo-mark { width: 30px; height: 30px; flex: 0 0 auto; color: var(--ink); }
.logo small { font-weight: 600; color: var(--ink-3); font-size: 14px; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { text-decoration: none; color: var(--ink-2); font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--ink); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--line); border-radius: 10px; width: 42px; height: 42px; color: var(--ink); font-size: 18px; }
.theme-btn { background: none; border: 1px solid var(--line); border-radius: 10px; width: 38px; height: 38px; color: var(--ink-2); cursor: pointer; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border-radius: 12px; font-weight: 700; font-size: 16px; text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, background .15s ease; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 88%, var(--ink)); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink-3); }
.btn-sm { min-height: 40px; padding: 0 16px; font-size: 14px; }

/* hero */
.hero { padding: 72px 0 56px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; color: var(--ink-2); background: var(--surface); border: 1px solid var(--line); padding: 6px 12px; border-radius: 999px; }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--good); }
.hero h1 { font-size: clamp(34px, 6vw, 64px); line-height: 1.15; letter-spacing: -.035em; margin: 20px 0 18px; font-weight: 800; }
.hero h1 .hl { background: linear-gradient(transparent 62%, var(--hl) 62%); padding: 0 4px; }
.hero p.lead { font-size: clamp(17px, 2.1vw, 20px); color: var(--ink-2); max-width: 640px; margin: 0 0 30px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 48px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.stat b { display: block; font-size: 28px; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.stat span { color: var(--ink-3); font-size: 14px; }

/* sections */
section { padding: 72px 0; scroll-margin-top: 64px; }
.section-head { max-width: 720px; margin-bottom: 36px; }
.section-head .kicker { color: var(--accent); font-weight: 800; font-size: 14px; letter-spacing: .04em; }
.section-head h2 { font-size: clamp(26px, 3.6vw, 40px); line-height: 1.25; letter-spacing: -.03em; margin: 8px 0 12px; }
.section-head p { color: var(--ink-2); margin: 0; font-size: 17px; }
.alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

/* service cards */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; box-shadow: var(--shadow); }
.alt .card { background: var(--bg); }
.card .tag { align-self: flex-start; font-size: 12px; font-weight: 800; padding: 4px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }
.card h3 { font-size: 22px; letter-spacing: -.02em; margin: 14px 0 8px; line-height: 1.35; }
.card p { color: var(--ink-2); margin: 0 0 18px; }
.card ul { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 8px; font-size: 15px; }
.card li { display: flex; gap: 10px; }
.card li::before { content: ""; flex: 0 0 18px; height: 18px; margin-top: 3px; border-radius: 50%; background: var(--mark) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' fill='none' stroke='%23ffffff' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat; }
.card .price { margin-top: auto; padding-top: 18px; border-top: 1px dashed var(--line); display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.card .price b { font-size: 22px; font-variant-numeric: tabular-nums; }
.card .price small { color: var(--ink-3); }

/* seo checklist */
.seo-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 28px; align-items: start; }
.checklist { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.check { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 14px 16px; }
.check b { display: block; font-size: 15px; }
.check span { color: var(--ink-3); font-size: 13.5px; }
.serp { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.serp .label { font-size: 12px; font-weight: 800; color: var(--ink-3); letter-spacing: .05em; margin-bottom: 12px; }
.serp .url { font-size: 13px; color: var(--ink-2); }
.serp .title { color: var(--accent); font-size: 19px; margin: 2px 0 4px; line-height: 1.35; }
.serp .desc { color: var(--ink-2); font-size: 14px; }
.share { margin-top: 16px; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: var(--bg); }
.share .img { aspect-ratio: 1200/630; background: var(--og-bg); color: var(--og-ink); display: grid; place-items: center; font-weight: 800; font-size: clamp(18px, 2.4vw, 26px); letter-spacing: -.02em; text-align: center; padding: 20px; }
.share .img em { font-style: normal; color: var(--og-mark); }
.share .meta { padding: 12px 14px; font-size: 13px; color: var(--ink-2); }
.share .meta b { color: var(--ink); display: block; font-size: 14px; }

/* process */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; counter-reset: step; }
.step { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 18px; }
.step::before { counter-increment: step; content: "0" counter(step); font-weight: 800; color: var(--accent); font-size: 14px; }
.step h3 { margin: 8px 0 6px; font-size: 17px; }
.step p { margin: 0; color: var(--ink-2); font-size: 14.5px; }

/* portfolio */
.works { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.work { text-decoration: none; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .2s ease; }
.work:hover { transform: translateY(-3px); }
.work .thumb { aspect-ratio: 16/10; width: 100%; height: auto; object-fit: cover; object-position: top; border-bottom: 1px solid var(--line); background: var(--surface-2); }
.work .body { padding: 14px 16px; }
.work .body b { display: block; }
.work .body span { font-size: 13.5px; color: var(--ink-2); display: block; margin-top: 4px; }
.work .body .stack { font-size: 12.5px; color: var(--ink-3); margin-top: 10px; }

/* reviews */
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.review { margin: 0; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 14px; }
.review blockquote { margin: 0; font-size: 16px; }
.review figcaption { color: var(--ink-3); font-size: 13.5px; margin-top: auto; }
.stars { color: #e3a008; letter-spacing: 2px; }

/* pricing table */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; border-collapse: collapse; min-width: 640px; font-size: 15px; }
th, td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { background: var(--surface-2); font-size: 14px; color: var(--ink-2); }
tbody tr:last-child td { border-bottom: 0; }
td.num { font-variant-numeric: tabular-nums; font-weight: 700; white-space: nowrap; }
.note { color: var(--ink-3); font-size: 14px; margin-top: 12px; }

/* faq */
.faq { display: grid; gap: 10px; max-width: 860px; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0 20px; }
.faq summary { cursor: pointer; font-weight: 700; padding: 18px 0; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--ink-3); font-weight: 400; font-size: 22px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 18px; color: var(--ink-2); }

/* cta */
.cta-box { background: var(--ink); color: var(--bg); border-radius: 26px; padding: clamp(32px, 6vw, 64px); display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; align-items: center; }
.cta-box h2 { font-size: clamp(26px, 3.6vw, 40px); margin: 0 0 10px; letter-spacing: -.03em; line-height: 1.25; }
.cta-box p { margin: 0; color: color-mix(in srgb, var(--bg) 72%, var(--ink)); }
.cta-box .actions { display: flex; flex-direction: column; gap: 10px; }
.cta-box .btn-ghost { background: transparent; color: var(--bg); border-color: color-mix(in srgb, var(--bg) 35%, var(--ink)); }

footer { padding: 40px 0 56px; color: var(--ink-3); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between; }
footer a { color: var(--ink-2); }

/* install banner (PWA) */
.install { position: fixed; left: 16px; right: 16px; bottom: 16px; max-width: 440px; margin: 0 auto; background: var(--surface); border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); padding: 14px 16px; display: none; align-items: center; gap: 12px; z-index: 60; }
.install.show { display: flex; }
.install p { margin: 0; font-size: 14px; flex: 1; }
.install button.x { background: none; border: 0; color: var(--ink-3); font-size: 20px; cursor: pointer; }

/* mobile */
@media (max-width: 960px) {
  .cards, .reviews { grid-template-columns: 1fr; }
  .seo-grid, .cta-box { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .wrap { padding: 0 16px; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 16px 16px; }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav-toggle { display: grid; place-items: center; }
  .theme-btn { margin-left: auto; }
  .nav-toggle { margin-left: 0; }
  .site-header .header-cta { display: none; }
  .hero { padding: 44px 0 32px; }
  section { padding: 52px 0; }
  .checklist { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero-cta .btn { flex: 1 1 100%; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }