/*
 * Design tokens adapted from Wanted Design System (Wanted Lab, CC BY 4.0).
 * https://www.figma.com/community/file/1355516515676178246/wanted-design-system
 * Modified by sitrip.
 */
:root {
  --primary-normal: #0066ff;
  --primary-strong: #005eeb;
  --primary-heavy: #0054d1;
  --primary-tint: rgba(0, 102, 255, 0.08);

  --label-strong: #000000;
  --label-normal: #171719;
  --label-neutral: rgba(46, 47, 51, 0.88);
  --label-alternative: rgba(55, 56, 60, 0.61);
  --label-assistive: rgba(55, 56, 60, 0.28);

  --bg-normal: #ffffff;
  --bg-alternative: #f7f7f8;
  --line-normal: rgba(112, 115, 124, 0.22);
  --line-alternative: rgba(112, 115, 124, 0.08);
  --fill-normal: rgba(112, 115, 124, 0.08);

  --radius-s: 8px;
  --radius-m: 12px;
  --radius-l: 16px;
  --radius-xl: 24px;

  --font: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary-normal: #3385ff;
    --primary-strong: #1a75ff;
    --primary-heavy: #0066ff;
    --primary-tint: rgba(51, 133, 255, 0.16);

    --label-strong: #ffffff;
    --label-normal: #f7f7f8;
    --label-neutral: rgba(194, 196, 200, 0.88);
    --label-alternative: rgba(174, 176, 182, 0.61);
    --label-assistive: rgba(174, 176, 182, 0.28);

    --bg-normal: #1b1c1e;
    --bg-alternative: #0f0f10;
    --line-normal: rgba(112, 115, 124, 0.32);
    --line-alternative: rgba(112, 115, 124, 0.16);
    --fill-normal: rgba(112, 115, 124, 0.22);
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 72px; }

body {
  font-family: var(--font);
  color: var(--label-normal);
  background: var(--bg-normal);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: 0.0057em;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
}

a { color: inherit; text-decoration: none; }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg-normal) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line-alternative);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--primary-normal);
}
.nav { display: flex; gap: 4px; }
.nav a {
  padding: 8px 12px;
  border-radius: var(--radius-s);
  font-size: 15px;
  font-weight: 600;
  color: var(--label-neutral);
  transition: background-color 0.15s;
}
.nav a:hover { background: var(--fill-normal); }

/* Chip */
.chip {
  display: inline-flex;
  align-items: center;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.0194em;
}
.chip--primary { color: var(--primary-normal); background: var(--primary-tint); }
.chip--neutral { color: var(--label-alternative); background: var(--fill-normal); }

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 20px;
  border-radius: var(--radius-m);
  font-size: 15px;
  font-weight: 600;
  transition: background-color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.btn--large { height: 48px; padding: 0 28px; font-size: 16px; }
.btn--primary { color: #fff; background: var(--primary-normal); }
.btn--primary:hover { background: var(--primary-strong); }
.btn--primary:active { background: var(--primary-heavy); }
.btn--outlined {
  color: var(--label-normal);
  border: 1px solid var(--line-normal);
  background: transparent;
}
.btn--outlined:hover { background: var(--fill-normal); }

/* Hero */
.hero { padding: 120px 0 112px; }
.hero__title {
  margin-top: 20px;
  font-size: 56px;
  line-height: 1.286;
  font-weight: 700;
  letter-spacing: -0.0319em;
  color: var(--label-strong);
}
.hero__desc {
  margin-top: 24px;
  max-width: 640px;
  font-size: 18px;
  line-height: 1.667;
  color: var(--label-alternative);
}
.hero__desc strong { color: var(--label-normal); font-weight: 600; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }

/* Section */
.section { padding: 96px 0; }
.section--alt { background: var(--bg-alternative); }
.eyebrow {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.0145em;
  color: var(--primary-normal);
}
.section__title {
  margin-top: 8px;
  font-size: 36px;
  line-height: 1.334;
  font-weight: 700;
  letter-spacing: -0.027em;
  color: var(--label-strong);
}
.section__desc {
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.6;
  color: var(--label-alternative);
}

/* Grid & card */
.grid { display: grid; gap: 16px; margin-top: 48px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.card {
  padding: 28px;
  border: 1px solid var(--line-normal);
  border-radius: var(--radius-l);
  background: var(--bg-normal);
}
.card__num {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary-normal);
}
.card__title {
  margin-top: 16px;
  font-size: 20px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -0.012em;
}
.card__desc {
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--label-alternative);
}

/* Product */
.product__head { display: flex; align-items: center; gap: 12px; }
.product__head .chip { margin-top: 8px; }
.highlight {
  margin-top: 40px;
  padding: 36px;
  border-radius: var(--radius-xl);
  background: var(--bg-normal);
  border: 2px solid var(--primary-normal);
}
.highlight__title {
  margin-top: 16px;
  font-size: 28px;
  line-height: 1.358;
  font-weight: 700;
  letter-spacing: -0.0236em;
  color: var(--label-strong);
}
.highlight__desc {
  margin-top: 8px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--label-alternative);
}
.query-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.query {
  padding: 10px 16px;
  border-radius: var(--radius-m);
  background: var(--primary-tint);
  color: var(--primary-normal);
  font-size: 15px;
  font-weight: 600;
}
.feature-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 16px;
}
.feature {
  padding: 24px 28px;
  border-radius: var(--radius-l);
  background: var(--bg-normal);
  border: 1px solid var(--line-alternative);
}
.feature__title {
  font-size: 18px;
  line-height: 1.445;
  font-weight: 700;
}
.feature__desc {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--label-alternative);
}
.product__cta { margin-top: 32px; }
.note {
  margin-top: 16px;
  font-size: 13px;
  color: var(--label-assistive);
}

/* Contact */
.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 48px;
  border-radius: var(--radius-xl);
  background: var(--primary-tint);
}

/* Footer */
.footer {
  padding: 48px 0 56px;
  border-top: 1px solid var(--line-alternative);
  font-size: 13px;
  line-height: 1.7;
  color: var(--label-alternative);
}
.footer__logo {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--label-neutral);
  margin-bottom: 12px;
}
.footer a { text-decoration: underline; text-underline-offset: 2px; }
.footer__copy { margin-top: 4px; }
.footer__credit { margin-top: 16px; color: var(--label-assistive); }

/* Responsive */
@media (max-width: 860px) {
  .grid--3 { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .contact { flex-direction: column; align-items: flex-start; padding: 32px; }
}

@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .nav a { padding: 8px; font-size: 14px; }
  .hero { padding: 72px 0 64px; }
  .hero__title { font-size: 36px; line-height: 1.334; }
  .hero__desc { font-size: 16px; }
  .br-desktop { display: none; }
  .hero__actions .btn { width: 100%; }
  .section { padding: 64px 0; }
  .section__title { font-size: 28px; }
  .contact .btn,
  .product__cta .btn { width: 100%; }
  .highlight { padding: 24px; }
  .highlight__title { font-size: 24px; }
}