:root {
  --paper: #eceee9;
  --panel: #ffffff;
  --ink: #191b17;
  --muted: #565c52;
  --rule: #c7cbc1;
  --roast: #7b2d1a;
  --roast-ink: #fff7f2;
  --bean: #4f6b3b;
  --tg: #e6efe2;
  --display: "Schibsted Grotesk", "Pretendard", system-ui, sans-serif;
  --body: "Pretendard", system-ui, -apple-system, "Apple SD Gothic Neo", sans-serif;
  --wrap: 1120px;
}

* { box-sizing: border-box; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--body); font-size: 17px; line-height: 1.6; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--roast); }
:focus-visible { outline: 2px solid var(--roast); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.12; margin: 0; text-wrap: balance; }
p, dd, li { text-wrap: pretty; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; }
.skip:focus { left: 8px; z-index: 10; }

/* header */
.site-head { box-shadow: 0 1px 0 var(--rule); background: var(--paper); position: sticky; top: 0; z-index: 5; }
.head-row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--display); font-weight: 800; font-size: 21px; }
nav { display: flex; align-items: center; gap: 26px; font-size: 15px; }
nav a { text-decoration: none; color: var(--muted); }
nav a:hover { color: var(--ink); }
nav .nav-cta { color: var(--ink); border: 1.5px solid var(--ink); padding: 7px 14px; border-radius: 999px; }
nav .nav-cta:hover { background: var(--ink); color: var(--paper); }

/* hero */
.hero { padding: 72px 0 88px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 64px; align-items: center; }
.product-name { font-family: var(--display); font-weight: 700; font-size: 17px; color: var(--roast); margin: 0 0 18px; }
.hero h1 { font-size: clamp(40px, 5.4vw, 66px); font-weight: 800; letter-spacing: -0.02em; max-width: 13ch; }
.lede { font-size: 19px; color: var(--muted); max-width: 54ch; margin: 26px 0 0; }
.lede.small { font-size: 16px; margin-top: 14px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.btn { display: inline-block; text-decoration: none; font-weight: 600; font-size: 16px; padding: 13px 22px; border-radius: 999px; border: 1.5px solid var(--ink); }
.btn.primary { background: var(--roast); border: 0; padding: 14.5px 23.5px; color: var(--roast-ink); }
.btn.primary:hover { background: #64230f; color: var(--roast-ink); }
.btn:not(.primary):hover { background: var(--ink); color: var(--paper); }

/* phone illustration */
.phone { margin: 0; background: var(--panel); border-radius: 28px; box-shadow: 0 1px 2px rgba(25,27,23,.08); padding: 14px; max-width: 360px; justify-self: end; width: 100%; }
.phone-bar { display: flex; align-items: center; gap: 10px; padding: 6px 6px 12px; border-bottom: 1px solid var(--rule); }
.phone-bar strong { display: block; font-size: 15px; }
.phone-bar span:not(.avatar) { font-size: 12px; color: var(--muted); }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--bean); color: #fff; display: grid; place-items: center; font-family: var(--display); font-weight: 800; }
.chat { padding: 14px 4px; display: flex; flex-direction: column; gap: 8px; min-height: 210px; }
.msg { word-break: keep-all; overflow-wrap: anywhere; margin: 0; padding: 9px 12px; border-radius: 14px; font-size: 14.5px; line-height: 1.45; max-width: 82%; }
.msg span { color: var(--muted); font-size: 13px; }
.msg.me { align-self: flex-end; background: var(--tg); border-bottom-right-radius: 4px; }
.msg.bot { align-self: flex-start; background: var(--paper); border-bottom-left-radius: 4px; }
.keys { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; border-top: 1px solid var(--rule); padding-top: 12px; }
.keys span { background: var(--paper); border-radius: 10px; padding: 9px 6px 7px; text-align: center; font-weight: 600; font-size: 15px; line-height: 1.25; }
.keys small { display: block; font-weight: 400; font-size: 11.5px; color: var(--muted); margin-top: 2px; }
.phone figcaption { font-size: 13px; color: var(--muted); padding: 12px 4px 2px; line-height: 1.45; }

/* sections */
section[id] { scroll-margin-top: 72px; }
section h2 { font-size: clamp(30px, 3.4vw, 42px); font-weight: 800; letter-spacing: -0.015em; }
.section-lede { color: var(--muted); max-width: 60ch; margin: 14px 0 0; }

.shift { background: var(--panel); padding: 88px 0; }
.timeline { list-style: none; margin: 48px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: 40px; row-gap: 44px; }
.timeline li { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 14px; padding-top: 18px; border-top: 2px solid var(--ink); }
.timeline time { font-family: var(--body); font-weight: 700; font-size: 18px; font-variant-numeric: tabular-nums; color: var(--roast); line-height: 1.3; }
.timeline h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.timeline p { margin: 0; color: var(--muted); font-size: 15.5px; }

.modules { padding: 96px 0; }
.modules-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; }
.modules dl { margin: 34px 0 0; }
.modules dt { font-weight: 700; font-size: 17px; padding-top: 16px; border-top: 1px solid var(--rule); }
.modules dd { margin: 4px 0 16px; color: var(--muted); font-size: 15.5px; }

.stack { background: var(--ink); color: #eef0ea; padding: 88px 0; }
.stack a { color: #fff; }
.stack-grid h2 { color: #fff; }
.diagram { display: grid; grid-template-columns: 1fr 1.3fr 1fr; grid-template-rows: auto auto; gap: 18px; margin-top: 40px; }
.node { border: 1.5px solid #6f7669; border-radius: 14px; padding: 18px 20px; font-weight: 700; font-size: 17px; }
.node small { display: block; font-weight: 400; font-size: 14px; color: #b7bdb1; margin-top: 4px; }
.node.core { grid-column: 2; grid-row: 1 / span 2; background: #2e332a; border: 0; padding: 19.5px 21.5px; display: flex; flex-direction: column; justify-content: center; }
.diagram .node:nth-child(1) { grid-column: 1; grid-row: 1; }
.diagram .node:nth-child(2) { grid-column: 1; grid-row: 2; }
.diagram .node:nth-child(4) { grid-column: 3; grid-row: 1; }
.diagram .node:nth-child(5) { grid-column: 3; grid-row: 2; }
.stack-note { color: #c9cec3; max-width: 66ch; margin: 36px 0 0; }

.company { padding: 96px 0; }
.company-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 72px; }
.company p { max-width: 58ch; color: var(--muted); }
.company h2 + p { margin-top: 22px; }
.company .contact { color: var(--ink); font-weight: 600; }
.facts { margin: 0; display: grid; grid-template-columns: max-content 1fr; column-gap: 0; align-content: start; }
.facts dt { padding-right: 28px !important; }
.facts dt { color: var(--muted); font-size: 15px; padding: 14px 0; border-top: 1px solid var(--rule); }
.facts dd { margin: 0; padding: 14px 0; border-top: 1px solid var(--rule); font-weight: 600; }

.site-foot { border-top: 1px solid var(--rule); padding: 40px 0 56px; font-size: 14px; color: var(--muted); }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 28px; }
.foot-grid p { margin: 0; }
.foot-grid a + a { margin-left: 14px; }
.copy { text-align: right; }

/* legal pages */
.legal { padding: 64px 0 96px; }
.legal .wrap { max-width: 760px; }
.legal h1 { font-size: 40px; font-weight: 800; }
.legal h2 { font-size: 22px; margin-top: 36px; }
.legal p, .legal li { color: var(--muted); }
.legal .updated { font-size: 14px; }

@media (max-width: 900px) {
  .hero { padding: 48px 0 64px; }
  .hero-grid, .modules-grid, .company-grid { grid-template-columns: 1fr; gap: 48px; }
  .phone { justify-self: start; }
  .timeline { grid-template-columns: 1fr; }
  .diagram { grid-template-columns: 1fr; }
  .diagram .node, .diagram .node.core { grid-column: 1 !important; grid-row: auto !important; }
  .foot-grid { grid-template-columns: 1fr; }
  .copy { text-align: left; }
  nav a:not(.nav-cta) { display: none; }
}

.usage { padding: 80px 0 8px; }
.usage-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: start; }
.usage-text { font-size: 22px; line-height: 1.5; margin: 0; max-width: 46ch; font-variant-numeric: tabular-nums; }
.usage-note { grid-column: 2; font-size: 14px; color: var(--muted); margin: -36px 0 0; }
@media (max-width: 900px) {
  .usage-grid { grid-template-columns: 1fr; gap: 20px; }
  .usage-note { grid-column: 1; margin: 0; }
}

.admin { padding: 96px 0; background: var(--panel); }
.admin-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 64px; align-items: center; }
.admin dl { margin: 30px 0 0; }
.admin dt { font-weight: 700; font-size: 17px; padding-top: 16px; border-top: 1px solid var(--rule); }
.admin dd { margin: 4px 0 16px; color: var(--muted); font-size: 15.5px; max-width: 58ch; }
.admin-phone { background: var(--paper); }
.admin-phone .msg.bot { background: var(--panel); }
.avatar.inv { background: var(--ink); }
.msg.alert { box-shadow: inset 3px 0 0 var(--roast); }
@media (max-width: 900px) { .admin-grid { grid-template-columns: 1fr; gap: 40px; } }

.why { padding: 72px 0 0; }
.why-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: start; }
.why-text { font-size: 22px; line-height: 1.5; margin: 0; max-width: 46ch; }
.why-note { grid-column: 2; font-size: 14px; color: var(--muted); margin: -36px 0 0; }
@media (max-width: 900px) { .why-grid { grid-template-columns: 1fr; gap: 20px; } .why-note { grid-column: 1; margin: 0; } }

.lang-switch { display: inline-flex; border: 1.5px solid var(--rule); border-radius: 999px; padding: 2px; gap: 2px; }
.lang-switch a { text-decoration: none; color: var(--muted); font-size: 13.5px; padding: 4px 10px; border-radius: 999px; }
.lang-switch a[aria-current="true"] { background: var(--ink); color: var(--paper); }
.lang-switch a:not([aria-current="true"]):hover { color: var(--ink); }
nav .lang-switch a { display: inline-block; }
@media (max-width: 900px) { nav .lang-switch, nav .lang-switch a { display: inline-flex; } nav { gap: 10px; } nav .nav-cta { padding: 6px 12px; font-size: 14px; } }

:lang(ko) h1, :lang(ko) h2, :lang(ko) h3, :lang(ko) p, :lang(ko) dd, :lang(ko) dt, :lang(ko) li, :lang(ko) figcaption { word-break: keep-all; }

.anywhere { padding: 96px 0; }
.anywhere-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 64px; }
.anywhere dl { margin: 0; }
.anywhere dt { font-weight: 700; font-size: 17px; padding-top: 16px; border-top: 1px solid var(--rule); }
.anywhere dd { margin: 4px 0 16px; color: var(--muted); font-size: 15.5px; }
.pricing { padding: 96px 0; background: var(--panel); }
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; margin-top: 40px; max-width: 880px; }
.plan { border: 1.5px solid var(--rule); border-radius: 18px; padding: 28px; }
.plan.featured { border-color: var(--ink); }
.plan h3 { font-size: 20px; }
.price { margin: 10px 0 18px; color: var(--muted); }
.price strong { font-family: var(--display); font-size: 44px; color: var(--ink); margin-right: 6px; letter-spacing: -0.02em; }
.plan ul { margin: 0; padding-left: 18px; color: var(--muted); font-size: 15.5px; }
.plan li { margin: 6px 0; }
.plan-note { color: var(--muted); margin-top: 22px; font-size: 15px; }
.roadmap { padding: 96px 0; }
.road { list-style: none; margin: 40px 0 0; padding: 0; display: grid; gap: 0; max-width: 880px; }
.road li { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 20px; padding: 20px 0; border-top: 1px solid var(--rule); }
.road .when { font-weight: 700; color: var(--roast); font-variant-numeric: tabular-nums; }
.road h3 { font-size: 19px; margin-bottom: 6px; }
.road p { margin: 0; color: var(--muted); font-size: 15.5px; }
@media (max-width: 900px) { .anywhere-grid, .plans { grid-template-columns: 1fr; gap: 28px; } .road li { grid-template-columns: 1fr; gap: 6px; } }