/* === 다음역은 landing page === */

:root {
  --bg: #f4f2ee;
  --surface: #ffffff;
  --surface-2: #fbfaf7;
  --ink: #0e0f12;
  --ink-2: #2a2d33;
  --muted: #6b6f76;
  --hairline: rgba(14, 15, 18, 0.08);
  --hairline-strong: rgba(14, 15, 18, 0.14);

  --accent: #0fb9b1;
  --accent-deep: #0a8e88;
  --accent-soft: rgba(15, 185, 177, 0.12);

  --line-1: #0052a4;
  --line-2: #00a84d;
  --line-3: #ef7c1c;
  --line-4: #00a5de;
  --line-5: #996cac;
  --line-6: #cd7c2f;
  --line-7: #747f00;
  --line-8: #e6186c;
  --line-9: #bdb092;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 36px;

  --shadow-1: 0 1px 0 rgba(14, 15, 18, 0.04), 0 8px 24px rgba(14, 15, 18, 0.06);
  --shadow-2: 0 2px 0 rgba(14, 15, 18, 0.05), 0 24px 60px rgba(14, 15, 18, 0.12);

  --max: 1200px;
  --pad-x: clamp(20px, 4vw, 48px);

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

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.55;
  font-feature-settings: "ss01", "tnum";
  word-break: keep-all;
}

img { display: block; max-width: 100%; height: auto; }

a { color: inherit; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 8px 12px;
  z-index: 100;
}
.skip:focus { left: 12px; top: 12px; }

/* === Nav === */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  padding: 14px var(--pad-x);
  background: rgba(244, 242, 238, 0.78);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--hairline);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}
.brand img { border-radius: 8px; }
.brand__name { font-weight: 700; letter-spacing: -0.01em; font-size: 17px; }
.brand__sub {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  padding-left: 8px;
  margin-left: 4px;
  border-left: 1px solid var(--hairline-strong);
}

.nav__links {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.nav__links a {
  text-decoration: none;
  color: var(--ink-2);
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  transition: background 160ms ease, color 160ms ease;
}
.nav__links a:hover { background: var(--surface); color: var(--ink); }

@media (max-width: 640px) {
  .brand__sub { display: none; }
  .nav__links a { padding: 6px 10px; font-size: 13px; }
}

/* === Hero === */

.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 120px) var(--pad-x) clamp(60px, 9vw, 140px);
}

.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent-deep);
  background: var(--accent-soft);
  border-radius: 999px;
  text-transform: none;
}

.display {
  margin: 0;
  font-size: clamp(32px, 4.4vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 700;
  color: var(--ink);
}
.display__accent {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lede {
  margin: 22px 0 28px;
  font-size: clamp(16px, 1.4vw, 18px);
  color: var(--ink-2);
  max-width: 38ch;
}

.hero__pills {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.hero__pills li {
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--hairline-strong);
  color: var(--ink-2);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 20px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 140ms ease, box-shadow 160ms ease, background 160ms ease;
  cursor: pointer;
}
.btn--primary {
  background: var(--ink);
  color: #fff;
}
.btn--primary:hover { transform: translateY(-1px); box-shadow: var(--shadow-1); background: #1c1f25; }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--hairline-strong);
}
.btn--ghost:hover { background: var(--surface); }

.btn--lg { padding: 16px 28px; font-size: 16px; }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  max-width: 480px;
}
.hero__stats div {
  background: var(--surface);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
}
.hero__stats dt {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 4px;
}
.hero__stats dd {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}

/* === Phone visual === */

.hero__visual {
  position: relative;
  min-height: 600px;
  display: grid;
  place-items: center;
}

.phone {
  position: relative;
  width: 100%;
  max-width: 280px;
  aspect-ratio: 1206 / 2622;
  background: #0e0f12;
  border-radius: 44px;
  padding: 8px;
  box-shadow:
    0 0 0 1.5px rgba(14, 15, 18, 0.9),
    0 0 0 6px rgba(255, 255, 255, 0.6),
    var(--shadow-2);
  overflow: hidden;
}
.phone img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 36px;
  display: block;
}

.hero__visual .phone--lg {
  max-width: 300px;
  transform: rotate(-3deg);
  z-index: 2;
}
.hero__visual .phone--sm {
  position: absolute;
  bottom: 4%;
  right: 0;
  max-width: 200px;
  transform: rotate(6deg);
  z-index: 1;
  opacity: 0.95;
}

.dynamic-card {
  position: absolute;
  top: 4%;
  left: 0;
  width: 200px;
  background: var(--surface);
  padding: 12px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
  border: 1px solid var(--hairline);
  z-index: 3;
  transform: rotate(-2deg);
}
.dynamic-card img {
  width: 100%;
  height: 110px;
  object-fit: cover;
  object-position: top center;
  border-radius: 10px;
  margin-bottom: 8px;
}
.dynamic-card p {
  margin: 0;
  font-size: 12px;
  color: var(--ink-2);
  line-height: 1.45;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .hero__visual { min-height: 520px; margin-top: 20px; }
  .hero__visual .phone--lg { max-width: 260px; }
  .hero__visual .phone--sm { max-width: 170px; bottom: 6%; }
  .dynamic-card { display: none; }
}

/* === Generic section === */

.section__header {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  margin-bottom: clamp(28px, 4vw, 56px);
}
.section__header--inverse .eyebrow {
  background: rgba(255, 255, 255, 0.12);
  color: #cdebe9;
}

.headline {
  margin: 0;
  font-size: clamp(28px, 3.6vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--ink);
  max-width: 22ch;
}

.section__sub {
  margin: 16px 0 0;
  font-size: 15px;
  color: var(--muted);
  max-width: 60ch;
}

/* === Pillars === */

.pillars {
  background: var(--surface-2);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: clamp(56px, 8vw, 110px) 0;
}

.pillars__grid {
  list-style: none;
  margin: 0 auto;
  padding: 0 var(--pad-x);
  max-width: var(--max);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  counter-reset: pillar;
}

.pillar {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.pillar:hover { transform: translateY(-2px); box-shadow: var(--shadow-1); }

.pillar__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

.pillar h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.015em;
}
.pillar p { margin: 0; color: var(--ink-2); }

.pillar__bullets {
  list-style: none;
  padding: 0;
  margin: 4px 0 0;
  display: grid;
  gap: 6px;
}
.pillar__bullets li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--muted);
}
.pillar__bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
}

@media (max-width: 900px) {
  .pillars__grid { grid-template-columns: 1fr; }
}

/* === Screens gallery === */

.screens {
  padding: clamp(64px, 9vw, 120px) 0;
}

.gallery {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.shot {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.shot .phone { max-width: 100%; }
.shot figcaption h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.shot figcaption p {
  margin: 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 1024px) {
  .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .gallery { grid-template-columns: 1fr; }
}

/* === Data section (inverse / dark) === */

.data {
  background: linear-gradient(180deg, #0e1518 0%, #0a1416 100%);
  color: #f1f4f4;
  padding: clamp(64px, 9vw, 120px) 0;
}
.data .headline { color: #f1f4f4; max-width: 28ch; }

.data__grid {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.data__card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: background 200ms ease, border-color 200ms ease;
}
.data__card:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.2);
}
.data__card h3 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
  color: #f1f4f4;
  letter-spacing: -0.01em;
}
.data__card p {
  margin: 0;
  color: #b9c1c2;
  font-size: 14.5px;
  line-height: 1.6;
}

@media (max-width: 720px) {
  .data__grid { grid-template-columns: 1fr; }
}

/* === Privacy === */

.privacy {
  padding: clamp(64px, 9vw, 110px) 0;
  background: var(--surface-2);
  border-top: 1px solid var(--hairline);
}

.privacy__list {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.privacy__list li {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-lg);
  padding: 24px 26px;
  position: relative;
  overflow: hidden;
}
.privacy__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
}
.privacy__list h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.privacy__list p {
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-2);
  line-height: 1.6;
}

@media (max-width: 720px) {
  .privacy__list { grid-template-columns: 1fr; }
}

/* === CTA === */

.cta {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(72px, 10vw, 140px) var(--pad-x);
  text-align: center;
}
.cta .headline {
  margin: 0 auto;
  max-width: 22ch;
}
.cta p {
  margin: 18px auto 32px;
  max-width: 52ch;
  color: var(--ink-2);
  font-size: 16px;
}

/* === Footer === */

.foot {
  border-top: 1px solid var(--hairline);
  padding: 40px var(--pad-x);
  background: var(--bg);
  color: var(--muted);
  text-align: center;
}
.foot__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 12px;
}
.foot__brand img { border-radius: 7px; }
.foot__legal {
  margin: 0 auto 8px;
  max-width: 60ch;
  font-size: 13px;
  line-height: 1.6;
}
.foot__copy {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
}

/* === Reduced motion === */

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}