/* talkverse.uk/en — 영문 메인. 절제된 색: 남색 글자 + 인디고 하나, 그라데이션은 히어로에만 */
:root {
  --ink: #0a2540; --body: #425466; --muted: #6b7c93; --line: #e6ebf1; --soft: #f6f9fc;
  --accent: #635bff; --accent-ink: #4b44d6;
  --sh: 0 2px 5px -1px rgba(50, 50, 93, .1), 0 1px 3px -1px rgba(0, 0, 0, .1);
  --sh-lg: 0 50px 100px -20px rgba(50, 50, 93, .25), 0 30px 60px -30px rgba(0, 0, 0, .3);
  color-scheme: light;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { background: #fff; color: var(--body); font: 400 16px/1.6 Inter, "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-feature-settings: "ss01", "cv11"; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
[id] { scroll-margin-top: 72px; }
.in { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.eyebrow { color: var(--accent); font-size: 15px; font-weight: 600; letter-spacing: -.01em; }
h1, h2, h3, h4 { color: var(--ink); letter-spacing: -.022em; }
html[lang=ko] { word-break: keep-all; }
html[lang=ko] h1 { letter-spacing: -.035em; } html[lang=ko] h2 { letter-spacing: -.02em; }
h2 { font-size: clamp(28px, 3.6vw, 40px); line-height: 1.15; font-weight: 600; padding-top: 10px; max-width: 760px; }
.sub { font-size: 17px; line-height: 1.6; max-width: 640px; padding-top: 16px; }

/* 버튼 */
.btn { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 18px; border-radius: 999px; font-size: 15px; font-weight: 600; transition: background .15s, opacity .15s; }
.btn svg { width: 10px; height: 10px; stroke: currentColor; stroke-width: 1.8; fill: none; transition: transform .15s; }
.btn:hover svg { transform: translateX(2px); }
.btn.pri { background: var(--ink); color: #fff; }
.btn.pri:hover { background: #1b3a5c; }
.btn.ghost { color: var(--ink); }
.btn.ghost:hover { opacity: .7; }

/* 헤더 */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .2s, box-shadow .2s; }
.nav.s { background: rgba(255, 255, 255, .82); -webkit-backdrop-filter: saturate(1.6) blur(14px); backdrop-filter: saturate(1.6) blur(14px); box-shadow: 0 1px 0 var(--line); }
.nav .in { display: flex; align-items: center; height: 64px; gap: 32px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 19px; color: var(--ink); letter-spacing: -.04em; }
.logo svg { width: 22px; height: 22px; fill: none; stroke: var(--ink); stroke-width: 1.6; }
.nav nav { display: flex; gap: 28px; font-size: 15px; font-weight: 500; color: var(--ink); }
.nav nav a:hover { opacity: .65; }
.lang-sw { margin-left: auto; font-size: 14px; font-weight: 600; color: var(--ink); padding: 6px 14px; border-radius: 999px; background: rgba(255,255,255,.5); }
.nav.s .lang-sw { background: var(--soft); }

/* 히어로 */
.hero { position: relative; padding: 168px 0 140px; isolation: isolate; }
.mesh { position: absolute; inset: 0 0 auto; height: 100%; z-index: -1; overflow: hidden; transform: skewY(-8deg); transform-origin: 0 0; top: -8%; }
.mesh::before { content: ''; position: absolute; inset: -30% -10%;
  background:
    radial-gradient(38% 46% at 12% 38%, #ffd39b 0, transparent 70%),
    radial-gradient(34% 40% at 40% 18%, #f5b8e6 0, transparent 70%),
    radial-gradient(40% 50% at 70% 30%, #a9a4ff 0, transparent 70%),
    radial-gradient(34% 48% at 92% 64%, #8fe3ff 0, transparent 70%),
    #eceaff;
  filter: blur(40px); animation: drift 22s ease-in-out infinite alternate; }
.mesh::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(255,255,255,.15), rgba(255,255,255,.55)); }
@keyframes drift { to { transform: translate(4%, -3%) rotate(5deg) scale(1.05); } }
@media (prefers-reduced-motion: reduce) { .mesh::before { animation: none; } }
.hero .in { display: grid; grid-template-columns: 1.25fr .75fr; gap: 48px; align-items: center; }
.hero .eyebrow { color: var(--ink); opacity: .7; }
.hero h1 { font-size: clamp(40px, 5vw, 62px); line-height: 1.05; font-weight: 600; letter-spacing: -.045em; padding-top: 14px; color: var(--ink); }
.lead { font-size: clamp(17px, 1.5vw, 19px); line-height: 1.6; color: #2b4565; max-width: 520px; padding-top: 24px; }
.cta { display: flex; gap: 8px; padding-top: 32px; flex-wrap: wrap; }

/* 히어로 그림: 폰 + 떠 있는 카드 */
.vis { position: relative; height: 520px; }
.phone { position: absolute; right: 40px; top: 0; width: 264px; height: 520px; border-radius: 40px; background: #f6f9fc; padding: 10px;
  box-shadow: var(--sh-lg), inset 0 0 0 1px rgba(255,255,255,.6); }
.scr { height: 100%; border-radius: 31px; background: #fff; padding: 26px 18px 18px; display: flex; flex-direction: column; gap: 16px; box-shadow: inset 0 0 0 1px var(--line); font-size: 13px; }
.scr .bar { display: flex; justify-content: space-between; align-items: center; color: var(--ink); font-weight: 600; }
.pill { font-size: 11px; font-weight: 600; color: var(--accent); background: #efeefe; padding: 3px 9px; border-radius: 999px; }
.q { padding: 18px 0 6px; display: flex; flex-direction: column; gap: 4px; }
.q .tl { font-size: 24px; font-weight: 600; color: var(--ink); letter-spacing: -.02em; }
.q .gl { color: var(--muted); }
.words { display: flex; flex-wrap: wrap; gap: 6px; }
.words span { border: 1px solid var(--line); border-radius: 8px; padding: 5px 9px; color: var(--ink); font-weight: 500; }
.words i { font-style: normal; color: var(--muted); font-size: 11px; margin-left: 3px; }
.cov { margin-top: auto; background: var(--soft); border-radius: 14px; padding: 14px; }
.cov-h { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
.cov-h b { color: var(--ink); font-size: 14px; }
.track { height: 6px; background: #e3e8ee; border-radius: 3px; margin: 10px 0 8px; overflow: hidden; }
.track i { display: block; height: 100%; background: linear-gradient(90deg, #635bff, #00b3ff); border-radius: 3px; }
.cov small { color: var(--muted); font-size: 11.5px; }
.next { background: var(--ink); color: #fff; text-align: center; border-radius: 12px; padding: 12px; font-weight: 600; }
.next span { margin-left: 4px; }
.float { position: absolute; background: rgba(255,255,255,.92); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-radius: 14px; padding: 14px 16px;
  box-shadow: var(--sh-lg); display: flex; flex-direction: column; min-width: 168px; animation: bob 7s ease-in-out infinite; }
.float small { font-size: 11.5px; color: var(--muted); font-weight: 500; }
.float b { font-size: 26px; font-weight: 600; color: var(--ink); letter-spacing: -.03em; line-height: 1.25; }
.float span { font-size: 12.5px; color: var(--body); }
.f1 { left: -48px; top: 250px; }
.f2 { right: -6px; bottom: 60px; animation-delay: -3.5s; }
.f2 b { font-size: 20px; }
@keyframes bob { 50% { transform: translateY(-8px); } }
@media (prefers-reduced-motion: reduce) { .float { animation: none; } }

/* 언어 이름 흐르는 띠 */
.strip { overflow: hidden; padding: 8px 0 0; -webkit-mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.strip .track { display: flex; gap: 52px; width: max-content; height: auto; background: none; margin: 0; overflow: visible; animation: slide 60s linear infinite; }
.strip span { font-size: 22px; font-weight: 600; color: #a3acb9; white-space: nowrap; letter-spacing: -.02em; }
@keyframes slide { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .strip .track { animation: none; } }

/* 숫자 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); padding-top: 72px; padding-bottom: 8px; }
.stats div { border-left: 1px solid var(--line); padding: 2px 0 2px 20px; }
.stats b { display: block; font-size: 36px; font-weight: 600; color: var(--ink); letter-spacing: -.04em; line-height: 1.2; }
.stats span { font-size: 15px; }

/* 프로모(한자 리뷰) */
.promo { display: flex; align-items: center; gap: 16px; margin-top: 40px; padding: 16px 20px; border-radius: 10px; color: #fff; background: var(--ink); box-shadow: var(--sh); transition: background .15s; }
.promo:hover { background: #1b3a5c; }
.promo .g { width: 44px; height: 44px; flex: none; display: flex; align-items: center; justify-content: center; border-radius: 10px; background: rgba(255,255,255,.1); font-size: 24px; font-family: "Noto Serif KR", serif; }
.promo .t { flex: 1; } .promo .t b { font-size: 16px; font-weight: 600; } .promo .t span { display: block; font-size: 13.5px; color: #adbdcc; }
.promo .a { color: #80e9ff; font-size: 20px; }
.promo + .grid { padding-top: 16px; }

/* 언어 카드 */
.sect { padding-top: 112px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(232px, 1fr)); gap: 16px; padding-top: 44px; }
.lg { display: flex; flex-direction: column; border-radius: 10px; padding: 22px 22px 18px; background: #fff; box-shadow: var(--sh); transition: box-shadow .2s, transform .2s; }
.lg:hover { box-shadow: 0 13px 27px -5px rgba(50,50,93,.2), 0 8px 16px -8px rgba(0,0,0,.25); transform: translateY(-2px); }
.lg-h { display: flex; justify-content: space-between; align-items: center; gap: 8px; }
.nat { font-size: 15px; font-weight: 500; color: var(--muted); position: relative; padding-left: 14px; }
.nat::before { content: ''; position: absolute; left: 0; top: 50%; width: 6px; height: 6px; margin-top: -3px; border-radius: 50%; background: var(--c); }
.nat[dir=rtl] { padding: 0 14px 0 0; } .nat[dir=rtl]::before { left: auto; right: 0; }
.st { font-size: 11.5px; font-weight: 600; padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.st.live { color: #0e6245; background: #cbf4c9; } .st.draft { color: #5e4c09; background: #f8e5b9; }
.st.soon { color: #3d4eac; background: #e3e8fd; } .st.plan { color: var(--muted); background: var(--soft); }
.lg h3 { font-size: 19px; font-weight: 600; padding-top: 14px; }
.lg p { font-size: 14px; line-height: 1.55; padding-top: 6px; flex: 1; }
.tr { display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--line); font-size: 13.5px; color: var(--ink); font-variant-numeric: tabular-nums; font-weight: 500; }
.tr span { display: flex; flex-direction: column; }
.tr b { font-size: 10.5px; font-weight: 600; color: var(--muted); letter-spacing: .04em; }
.tr .na { grid-column: 1 / -1; color: var(--muted); font-weight: 400; font-size: 13px; }

/* 남색 방법 구간 */
.dark { background: var(--ink); color: #adbdcc; margin-top: 128px; padding: 112px 0 104px; position: relative; }
.dark .eyebrow { color: #80e9ff; }
.dark h2 { color: #fff; }
.dark .sub { color: #adbdcc; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.chart { background: rgba(255,255,255,.03); border: 1px solid rgba(255,255,255,.08); border-radius: 14px; padding: 22px 18px 14px; }
.chart svg { width: 100%; height: auto; display: block; overflow: visible; }
.chart .rl line { stroke: rgba(255,255,255,.14); stroke-dasharray: 2 4; }
.chart .rl text, .chart .ax text { fill: #8ba2ba; font: 500 12px Inter, sans-serif; }
.chart figcaption { font-size: 12.5px; color: #8ba2ba; padding-top: 10px; }
/* 네 단계 + 절벽 그림 */
.levels { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.cliff-art { margin: 0; }
.cliff-art img { width: 100%; height: auto; display: block; }
.tiers { display: grid; grid-template-columns: 1fr 1fr; gap: 28px 32px; padding-top: 40px; }
.tiers div { border-left: 1px solid #c7c3ff; padding-left: 16px; }
.tiers span { font-size: 13px; font-weight: 600; color: var(--accent); }
.tiers h4 { font-size: 16px; font-weight: 600; padding: 4px 0 4px; }
.tiers p { font-size: 14.5px; line-height: 1.55; }

/* 설계 */
.design-top { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.tiles-art { margin: 0; }
.tiles-art img { width: 100%; max-width: 440px; height: auto; display: block; margin: 0 auto; }
.tiles-art img, .cliff-art img { -webkit-mask: radial-gradient(ellipse 72% 72% at 50% 50%, #000 60%, transparent 100%); mask: radial-gradient(ellipse 72% 72% at 50% 50%, #000 60%, transparent 100%); }
.feats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; padding-top: 52px; }
.feats svg { width: 36px; height: 36px; padding: 7px; border-radius: 9px; background: #efeefe; stroke: var(--accent); stroke-width: 1.7; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.feats h4 { font-size: 17px; font-weight: 600; padding: 18px 0 6px; }
.feats p { font-size: 15px; }

.cta-band { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 120px; padding-top: 56px; padding-bottom: 56px; border-top: 1px solid var(--line); }
.cta-band h2 { padding-top: 0; font-size: clamp(24px, 2.8vw, 32px); }
.cta-band p { padding-top: 8px; }
footer { background: var(--soft); margin-top: 40px; font-size: 14px; color: var(--muted); }
footer .in { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 32px; padding-bottom: 32px; }
footer a:hover { color: var(--ink); }

@media (max-width: 960px) {
  .hero .in, .two { grid-template-columns: 1fr; }
  .vis { height: 480px; max-width: 420px; margin: 0 auto; width: 100%; }
  .phone { right: 50%; transform: translateX(50%) scale(.92); transform-origin: top center; }
  .levels, .design-top { grid-template-columns: 1fr; gap: 32px; }
  .cliff-art { max-width: 560px; }
  .feats { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 700px) {
  .in { padding: 0 16px; }
  .nav nav { display: none; }
  .nav { background: rgba(255,255,255,.82); -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px); box-shadow: 0 1px 0 var(--line); }
  .nav .in { height: 56px; }
  .hero { padding: 104px 0 96px; }
  .hero h1 { font-size: 36px; }
  .cta { flex-direction: column; }
  .cta .btn { width: 100%; justify-content: center; height: 46px; white-space: nowrap; }
  .f1 { left: 0; top: 230px; }
  .float { min-width: 140px; padding: 12px; } .float b { font-size: 22px; }
  .strip span { font-size: 18px; } .strip .track { gap: 36px; }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 28px; padding-top: 48px; }
  .stats b { font-size: 30px; }
  .sect { padding-top: 80px; }
  .grid { grid-template-columns: 1fr; padding-top: 32px; }
  .dark { margin-top: 96px; padding: 80px 0; }
  .tiers { grid-template-columns: 1fr; gap: 20px; padding-top: 32px; }
  .cta-band { flex-direction: column; align-items: flex-start; margin-top: 80px; }
  .cta-band .btn { width: 100%; justify-content: center; }
}