/* agentring.ttsoft.co.kr — 사업자·제품 소개(정적). 색은 제품 실물(BU 청색 몸체)과 보드 상태색에서 온다 */
:root {
  --paper: #eef1f4;       /* 무광 알루미늄 느낌의 차가운 바탕 */
  --panel: #ffffff;
  --ink: #16202c;
  --muted: #566273;
  --line: #d3d9e1;
  --body: #1d4e9e;        /* 제품 몸체 청색 */
  --body-edge: #163d7d;
  --glass: #0a0e14;
  /* 보드 상태색 — CLAUDE.md §4 */
  --s-idle: #f4f6f8; --s-think: #f6c343; --s-done: #3ccf7a; --s-ask: #e04bd6; --s-err: #ef4b4b;
  --sans: "IBM Plex Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --paper: #0f141b; --panel: #161d26; --ink: #e8edf3; --muted: #9aa6b6; --line: #273240; color-scheme: dark; }
}
:root[data-theme="dark"] { --paper: #0f141b; --panel: #161d26; --ink: #e8edf3; --muted: #9aa6b6; --line: #273240; color-scheme: dark; }

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--paper); color: var(--ink); }
body { font: 17px/1.7 var(--sans); padding-inline: 16px; }
a { color: var(--body); text-underline-offset: 3px; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) a { color: #8fb0f0; } }
a:focus-visible { outline: 2px solid var(--body); outline-offset: 3px; border-radius: 2px; }

.wrap { max-width: 1040px; margin: 0 auto; }
header.site { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; padding-block: 22px; }
.mark { font-weight: 700; font-size: 18px; letter-spacing: -0.01em; text-decoration: none; color: var(--ink); }
.mark span { color: var(--muted); font-weight: 400; margin-left: 6px; font-size: 15px; }
header.site nav a { color: var(--muted); font-size: 15px; text-decoration: none; }
header.site nav a:hover { color: var(--ink); }

/* 첫 화면 — 글은 왼쪽, 보드는 오른쪽. 모바일에선 보드가 위 */
.hero { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 40px; align-items: center; padding-block: 32px 56px; }
.hero h1 { font-size: clamp(34px, 5.4vw, 56px); line-height: 1.12; letter-spacing: -0.025em; font-weight: 700; margin: 0 0 20px; word-break: keep-all; }
.hero h1.name { font-size: clamp(40px, 6.6vw, 68px); letter-spacing: -0.035em; line-height: 1; margin: 0 0 16px; }
.hero .lede { font-size: clamp(20px, 2.4vw, 26px); line-height: 1.4; color: var(--ink); font-weight: 600; letter-spacing: -0.01em; margin: 0 0 18px; max-width: 22em; }
.hero p { margin: 0 0 14px; max-width: 34em; color: var(--muted); word-break: keep-all; }
.hero .status { display: inline-flex; align-items: center; gap: 10px; margin-top: 10px; font-size: 15px; color: var(--ink); }
.hero .status i { width: 9px; height: 9px; border-radius: 50%; background: var(--s-think); transition: background 700ms ease; }
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; gap: 20px; padding-block: 8px 40px; }
  .hero .shots { order: -1; }
}

/* 상태 사진 — 5장을 겹쳐 두고 하나만 보인다(교차 페이드). 사진은 3:2 */
.shots { margin: 0; }
.stage { position: relative; aspect-ratio: 3 / 2; border-radius: 16px; overflow: hidden; background: #d9dcdf; }
.stage img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0; transition: opacity 700ms ease; }
.stage img.on { opacity: 1; }
.shots figcaption { color: var(--muted); font-size: 14px; margin-top: 10px; word-break: keep-all; }

section.band { border-top: 1px solid var(--line); padding-block: 44px; }
section.band h2 { font-size: 24px; letter-spacing: -0.01em; margin: 0 0 18px; }
.cols { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
.cols h3 { font-size: 17px; margin: 0 0 6px; }
.cols p { margin: 0; color: var(--muted); font-size: 16px; word-break: keep-all; }
@media (max-width: 760px) { .cols { grid-template-columns: 1fr; gap: 20px; } }

/* 상태색 범례 — 누르면 그 상태 사진 */
.legend { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.legend button { font: inherit; font-size: 14px; color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px 4px 8px; display: inline-flex; align-items: center; gap: 7px; cursor: pointer; }
.legend button[aria-pressed="true"] { border-color: var(--ink); }
.legend button:focus-visible { outline: 2px solid var(--body); outline-offset: 2px; }
.legend i { width: 12px; height: 12px; border-radius: 50%; border: 1px solid var(--line); }


/* 핵심 기능 — 분할 링 */
.feature { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 40px; align-items: center; }
section.band.feature h2 { font-size: clamp(26px, 3.4vw, 34px); letter-spacing: -0.02em; line-height: 1.2; }
.feature-text p { color: var(--muted); margin: 0 0 12px; word-break: keep-all; }
.feature-text strong { color: var(--ink); font-weight: 600; }
.flow { margin: 18px 0 0; padding-left: 1.3em; color: var(--ink); font-size: 16px; }
.flow li { margin: 4px 0; word-break: keep-all; }
.feature-shot { margin: 0; }
.feature-shot img { width: 100%; height: auto; border-radius: 16px; display: block; background: #d9dcdf; }
.feature-shot figcaption { color: var(--muted); font-size: 14px; margin-top: 10px; word-break: keep-all; }
@media (max-width: 760px) { .feature { grid-template-columns: 1fr; gap: 20px; } .feature-shot { order: -1; } }

/* 두 가지 모드 — 콘셉트 사진 + 원형 화면 캡처 */
.modes { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: 36px; align-items: start; }
.mode-shot { margin: 0; }
.mode-shot img { width: 100%; height: auto; border-radius: 16px; display: block; background: #d9dcdf; }
.mode-shot figcaption { color: var(--muted); font-size: 14px; margin-top: 10px; word-break: keep-all; }
.mode-text h3 { font-size: 18px; margin: 0 0 6px; }
.mode-text h3 + p { margin: 0 0 14px; color: var(--muted); font-size: 16px; word-break: keep-all; }
.screens { list-style: none; margin: 0 0 26px; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(92px, 1fr)); gap: 14px 12px; }
.screens li { display: flex; flex-direction: column; align-items: center; gap: 6px; font-size: 14px; color: var(--muted); }
.screens img { width: 100%; max-width: 116px; height: auto; border-radius: 50%; display: block; box-shadow: 0 0 0 4px #15181d; }
.mode-text .note { color: var(--muted); font-size: 14px; margin: 0; word-break: keep-all; }
@media (max-width: 760px) { .modes { grid-template-columns: 1fr; gap: 22px; } }

/* 설치 층 표 */
.table-wrap { overflow-x: auto; }
table.layers { border-collapse: collapse; width: 100%; font-size: 16px; }
table.layers th, table.layers td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--line); word-break: keep-all; }
table.layers thead th { font-size: 14px; color: var(--muted); font-weight: 500; }
table.layers tbody th { white-space: nowrap; font-weight: 600; width: 10em; }
table.layers td { color: var(--muted); }
.support { margin: 18px 0 0; font-size: 15px; color: var(--muted); line-height: 1.8; }
.support strong { color: var(--ink); margin-right: 8px; }
footer.site .tm { margin: 0 0 12px; font-size: 13px; }

/* 사업자 정보 — 국내 사이트 관례 */
footer.site { border-top: 1px solid var(--line); padding-block: 28px 44px; font-size: 14px; color: var(--muted); }
footer.site dl { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 4px 16px; margin: 0 0 14px; }
footer.site dt { color: var(--ink); }
footer.site dd { margin: 0; overflow-wrap: anywhere; }
footer.site .links { display: flex; flex-wrap: wrap; gap: 16px; }

/* 문서 페이지(개인정보처리방침) */
article.doc { max-width: 44em; padding-block: 16px 56px; }
article.doc h1 { font-size: 32px; letter-spacing: -0.02em; margin: 0 0 8px; }
article.doc h2 { font-size: 19px; margin: 32px 0 8px; }
article.doc p, article.doc li { color: var(--ink); word-break: keep-all; }
article.doc .meta { color: var(--muted); font-size: 15px; }

@media (prefers-reduced-motion: reduce) { .stage img { transition: none; } }

/* 260928 문구 개편 — 본문 단락·보조 문구 */
.prose p { margin: 0 0 12px; max-width: 40em; color: var(--muted); word-break: keep-all; }
.prose p.note, .feature-text p.note { font-size: 14px; }
.mode-text .lead { margin: 0 0 12px; color: var(--muted); font-size: 16px; word-break: keep-all; }
.mode-text .note { margin-bottom: 20px; }
.mode-text .cap { margin: -16px 0 22px; color: var(--muted); font-size: 14px; word-break: keep-all; }
.screens.one { grid-template-columns: minmax(0, 116px); }
.prose-note { margin: 0; color: var(--muted); font-size: 15px; word-break: keep-all; }

/* 261003 — 메뉴 여러 개 · Labs 카드 · 개발 이야기 */
header.site nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
header.site nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
.page-head { padding-block: 16px 28px; max-width: 46em; }
.page-head h1 { font-size: clamp(32px, 5vw, 44px); letter-spacing: -0.025em; margin: 0 0 14px; }
.page-head p { margin: 0 0 10px; color: var(--muted); word-break: keep-all; }
.page-head p.note { font-size: 14px; }
.page-head p.product { margin-top: 18px; padding: 12px 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; font-size: 15px; }
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 16px; padding-bottom: 44px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px 16px; display: flex; flex-direction: column; }
.card .repo { margin: 0 0 4px; font-size: 13px; color: var(--muted); font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace; overflow-wrap: anywhere; }
.card h2 { font-size: 17px; line-height: 1.45; margin: 0 0 10px; letter-spacing: -0.01em; word-break: keep-all; }
.card ul { margin: 12px 0 0; padding-left: 1.1em; font-size: 15px; line-height: 1.6; color: var(--muted); }
.card li { margin: 3px 0; word-break: keep-all; }
.chip { align-self: flex-start; font-size: 12.5px; line-height: 1; padding: 6px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.chip::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 6px; vertical-align: 1px; background: var(--muted); }
.chip.on::before { background: var(--s-done); }
.chip.done::before { background: var(--body); }
.chip.rest::before { background: var(--s-think); }
.chip.end::before { background: var(--line); }
.others ul { margin: 0 0 12px; padding-left: 1.1em; color: var(--ink); }
.others li { margin: 4px 0; word-break: keep-all; }
.others .note { margin: 0; color: var(--muted); font-size: 14px; }
article.doc.story { font-size: 17.5px; line-height: 1.85; }
article.doc.story h1 { font-size: clamp(28px, 4.4vw, 38px); line-height: 1.25; margin-bottom: 28px; word-break: keep-all; }
article.doc.story h2 { font-size: 21px; margin: 44px 0 14px; word-break: keep-all; }
article.doc.story p { margin: 0 0 16px; }
article.doc.story ul { padding-left: 1.2em; margin: 0 0 18px; }
article.doc.story li { margin: 6px 0; }
article.doc.story blockquote { margin: 20px 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--body); color: var(--muted); }
article.doc.story blockquote p { margin: 0; }
article.doc.story hr { border: 0; border-top: 1px solid var(--line); margin: 32px 0; }
@media (max-width: 560px) { header.site { flex-wrap: wrap; row-gap: 6px; } header.site nav { width: 100%; } }
header.site nav a.lang { padding-left: 14px; border-left: 1px solid var(--line); }