/* sayon hub — 디자인 토큰: ElevenLabs 스타일 레퍼런스(DESIGN.md / tokens.json 기준)
   - 브랜드명·로고·이미지는 사용하지 않고 색·타이포·간격·형태 규칙만 적용
   - Waldenburg(독점 폰트)는 가이드의 대체 지시대로 Inter Light, 한글은 Pretendard로 대체
   - 보라/주황은 '제품 비주얼(스피어)'에만 사용하고 버튼·링크에는 쓰지 않는다 */
:root {
  --color-eggshell: #fdfcfc;
  --color-warm-taupe: #f5f3f1;
  --color-stone: #ebe8e4;
  --color-ink: #000000;
  --color-graphite: #44403b;
  --color-smoke: #777169;
  --color-ash: #a59f97;
  --color-violet-spark: #0447ff;
  --color-ember-orange: #ff4704;
  --color-btn-border: #e5e5e5;

  --font-display: 'Waldenburg', 'Inter', 'Pretendard', ui-sans-serif, system-ui, sans-serif;
  --font-body: 'Inter', 'Pretendard', ui-sans-serif, system-ui, -apple-system, 'Malgun Gothic', sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --radius-card: 20px;
  --radius-large: 24px;
  --radius-input: 4px;
  --radius-pill: 9999px;
  --shadow-subtle: rgba(0,0,0,.4) 0 0 1px 0, rgba(0,0,0,.04) 0 1px 1px 0, rgba(0,0,0,.04) 0 2px 4px 0;
  --page-max: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--color-eggshell); color: var(--color-ink);
  font: 400 16px/1.5 var(--font-body); letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all; overflow-wrap: break-word;   /* 한글은 단어 단위로 줄바꿈 */
}
a { color: inherit; }
.wrap { max-width: var(--page-max); margin: 0 auto; padding: 0 64px; }

/* 상단 바 (50px, 배경 없음) */
.nav { height: 50px; }
.nav-in { height: 50px; display: flex; align-items: center; gap: 32px; }
.logo { font-weight: 600; font-size: 18px; letter-spacing: -.01em; text-decoration: none; }
.nav-links { display: flex; gap: 8px; flex: 1; }
.nav-links a { font-size: 14px; font-weight: 500; text-decoration: none; padding: 6px 14px; border-radius: var(--radius-pill); }
.nav-links a:hover { background: var(--color-warm-taupe); }
.nav-auth { display: flex; align-items: center; gap: 12px; }
.nav-auth form { margin: 0; }
.who { font: 400 13px/1 var(--font-mono); color: var(--color-smoke); }

/* 버튼: 9999px pill, 검정 채움 + 에그쉘 외곽선 두 가지만 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 36px; padding: 0 16px; border-radius: var(--radius-pill);
  font: 500 14px/1 var(--font-body); letter-spacing: .01em; text-decoration: none; cursor: pointer;
  border: 1px solid var(--color-btn-border);
}
.btn-fill { background: var(--color-ink); color: #fff; }
.btn-outline { background: var(--color-eggshell); color: var(--color-ink); }
.btn-fill:hover { background: var(--color-graphite); }
.btn-outline:hover { background: var(--color-warm-taupe); }
.btn-disabled { background: var(--color-warm-taupe); color: var(--color-ash); cursor: default; }
.btn-lg { height: 44px; padding: 0 22px; font-size: 15px; }

/* 히어로: 좌측 헤드라인 + 우측 설명 */
.hero { padding: 96px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 64px; align-items: end; }
.display, .heading, .heading-sm {
  font-family: var(--font-display); font-weight: 300; margin: 0;
}
.display { font-size: 48px; line-height: 1.08; letter-spacing: -.96px; }
.heading { font-size: 36px; line-height: 1.17; letter-spacing: -.72px; }
.heading-sm { font-size: 32px; line-height: 1.13; letter-spacing: -.64px; }
.hero p.lead { margin: 0; font-size: 18px; line-height: 1.6; color: var(--color-smoke); }
.hero-actions { display: flex; gap: 8px; margin-top: 32px; flex-wrap: wrap; }

/* 섹션 밴드: 에그쉘 ↔ 토프 */
.band { background: var(--color-warm-taupe); padding: 96px 0; }
.section { padding: 96px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 40px; }
.section-head p { margin: 8px 0 0; color: var(--color-smoke); max-width: 520px; }
.hairline { border: 0; border-top: 1px solid var(--color-stone); margin: 0; }

/* 프로젝트 전환 탭: 흰 알약 + 활성 표시 점 */
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.tab {
  display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 16px;
  border-radius: var(--radius-pill); border: 1px solid var(--color-btn-border);
  background: var(--color-eggshell); color: var(--color-ink);
  font: 500 14px/1 var(--font-body); letter-spacing: .01em; cursor: pointer;
}
.tab:hover { background: var(--color-warm-taupe); }
.tab.is-active { background: var(--color-eggshell); box-shadow: var(--shadow-subtle); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-ash); }
.dot.live { background: var(--color-ember-orange); }
.tab:not(.is-active) .dot.live { background: var(--color-ash); }

/* 큰 기능 패널: 토프 채움, 24px 라운드, 그림자·테두리 없음 */
.panel {
  background: var(--color-warm-taupe); border-radius: var(--radius-large);
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px; padding: 48px;
  min-height: 480px; align-items: center;
}
.panel[hidden] { display: none; }
.panel-text { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
.panel-text .heading { max-width: 14em; }
.panel-sum { margin: 0; color: var(--color-smoke); font-size: 16px; max-width: 34em; }
.points { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.points li { position: relative; padding-left: 22px; font-size: 15px; }
.points li::before { content: ""; position: absolute; left: 0; top: .6em; width: 8px; height: 1px; background: var(--color-ink); }
.panel-actions { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 8px; }
.mono { font: 400 13px/1.4 var(--font-mono); color: var(--color-ash); }
.panel-visual {
  min-height: 384px; border-radius: var(--radius-card); background: var(--color-eggshell);
  display: grid; place-items: center; overflow: hidden;
}
.panel-visual img { width: 100%; height: 100%; object-fit: cover; }

/* 구체 비주얼: 보라·주황 방사형 그라데이션 + 중앙 재생 버튼 (제품 비주얼에만 색 사용) */
.sphere {
  position: relative; display: grid; place-items: center; border-radius: 50%;
  background:
    radial-gradient(circle at 32% 28%, rgba(255,255,255,.85) 0, rgba(255,255,255,0) 32%),
    radial-gradient(circle at 72% 72%, var(--color-ember-orange) 0, rgba(255,71,4,0) 62%),
    radial-gradient(circle at 26% 74%, var(--color-violet-spark) 0, rgba(4,71,255,0) 66%),
    #f3c6dc;
}
.sphere.v1 { background:
    radial-gradient(circle at 70% 26%, rgba(255,255,255,.85) 0, rgba(255,255,255,0) 30%),
    radial-gradient(circle at 28% 70%, var(--color-ember-orange) 0, rgba(255,71,4,0) 60%),
    radial-gradient(circle at 78% 74%, var(--color-violet-spark) 0, rgba(4,71,255,0) 64%),
    #f6d2c4; }
.sphere.v2 { background:
    radial-gradient(circle at 30% 24%, rgba(255,255,255,.85) 0, rgba(255,255,255,0) 30%),
    radial-gradient(circle at 74% 38%, var(--color-violet-spark) 0, rgba(4,71,255,0) 62%),
    radial-gradient(circle at 36% 78%, var(--color-ember-orange) 0, rgba(255,71,4,0) 64%),
    #ead2f2; }
.sphere.big { width: 200px; height: 200px; }
.sphere.xl  { width: 280px; height: 280px; }
.play {
  width: 48px; height: 48px; border-radius: 50%; background: var(--color-eggshell);
  display: grid; place-items: center; box-shadow: var(--shadow-subtle);
}
.play::before {
  content: ""; margin-left: 3px; border-style: solid; border-width: 7px 0 7px 12px;
  border-color: transparent transparent transparent var(--color-ink);
}

/* 구체 3열 */
.spheres { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.sph { display: flex; flex-direction: column; align-items: flex-start; gap: 16px; }
.sph .sphere { margin-bottom: 8px; }
.sph h3 { margin: 0; }
.sph p { margin: 0; color: var(--color-smoke); font-size: 15px; max-width: 24em; }

.tag {
  display: inline-flex; align-items: center; gap: 8px;
  height: 28px; padding: 0 12px; border-radius: var(--radius-pill);
  border: 1px solid var(--color-btn-border); background: var(--color-eggshell);
  font: 500 12px/1 var(--font-body);
}
.tag i { width: 6px; height: 6px; border-radius: 50%; background: var(--color-ash); }
.tag.live i { background: var(--color-ink); }

/* 기술 그리드: 박스 없이 저대비 워드마크 6열 */
.logos { display: grid; grid-template-columns: repeat(6, 1fr); gap: 24px; align-items: center; }
.logos span {
  text-align: center; padding: 28px 8px; color: var(--color-ash);
  font: 500 18px/1.2 var(--font-body); letter-spacing: -.01em; filter: grayscale(1);
}

/* ───── 서비스 소개 섹션: 제목 → 큰 카드 2개 → 아이콘 작은 카드 4개 ───── */
.fsec { padding: 96px 0; }
.fsec + .fsec { border-top: 1px solid var(--color-stone); }
.fhead { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; margin-bottom: 48px; }
.eyebrow { margin: 0 0 12px; font: 500 14px/1.4 var(--font-body); color: var(--color-smoke); }
.fh { font-size: 40px; line-height: 1.12; letter-spacing: -.8px; max-width: 14em; }
.fbtn { margin-top: 28px; min-height: 44px; }
.flead { margin: 0; font-size: 16px; line-height: 1.6; color: var(--color-graphite); max-width: 36em; }

.fgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.fcard {
  position: relative; overflow: hidden; border-radius: var(--radius-large);
  background: var(--color-warm-taupe); min-height: 560px;
  display: flex; flex-direction: column; justify-content: flex-end; padding: 32px;
}
.fcard .stage { position: absolute; inset: 0 0 150px 0; display: grid; place-items: center; padding: 32px; }
.fcap { position: relative; z-index: 2; }
.fcap small { display: block; font: 400 16px/1.4 var(--font-body); color: var(--color-smoke); margin-bottom: 6px; }
.fcap p { margin: 0; font: 400 18px/1.45 var(--font-body); color: var(--color-ink); max-width: 28em; }

/* 그라데이션 카드: 좌측과 하단에 그라데이션이 보이고 흰 패널이 위에 얹힘 */
.fcard.grad {
  background:
    radial-gradient(120% 90% at 0% 0%, #ff6a3d 0, rgba(255,71,4,0) 55%),
    radial-gradient(100% 80% at 100% 100%, #d94a2b 0, rgba(217,74,43,0) 60%),
    radial-gradient(80% 60% at 0% 100%, #2f55e8 0, rgba(4,71,255,0) 62%),
    #f0a37f;
}
.fcard.grad::after {            /* 미세한 질감 */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5; mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.6'/%3E%3C/svg%3E");
}
.fcard.grad .stage { inset: 0 0 150px 34px; padding: 0; place-items: stretch; }
.fcard.grad .mock { border-radius: 0 0 0 24px; border-top: 0; border-right: 0; height: 100%; }
.fcard.grad .fcap small { color: rgba(255,255,255,.78); }
.fcard.grad .fcap p { color: #fff; }

/* 화면 예시 패널 */
.mock {
  width: 100%; max-width: 640px; background: var(--color-eggshell);
  border: 1px solid var(--color-stone); border-radius: 20px; overflow: hidden;
  display: flex; flex-direction: column; text-align: left;
}
.fcard.grad .mock { max-width: none; }
.mock-bar { display: flex; align-items: center; gap: 6px; height: 44px; padding: 0 18px; border-bottom: 1px solid var(--color-stone); }
.mock-bar i { width: 8px; height: 8px; border-radius: 50%; background: var(--color-stone); }
.mock-bar span { margin-left: 8px; font: 500 12px/1 var(--font-body); color: var(--color-smoke); }
.mock-body { padding: 18px; display: grid; gap: 4px; flex: 1; align-content: start; }
.mrow { display: grid; grid-template-columns: 88px 1fr auto; gap: 12px; align-items: center; padding: 12px 10px; border-radius: 10px; font-size: 14px; }
.mrow + .mrow { border-top: 1px solid var(--color-warm-taupe); }
.mrow.acc { grid-template-columns: 1fr auto; }
.mmedia { font: 400 12px/1.3 var(--font-mono); color: var(--color-ash); }
.mtitle { color: var(--color-ink); line-height: 1.4; }
.mchip, .mstate {
  display: inline-flex; align-items: center; height: 24px; padding: 0 10px; border-radius: 9999px;
  border: 1px solid var(--color-btn-border); background: var(--color-eggshell); font: 500 12px/1 var(--font-body); white-space: nowrap;
}
.mstate.ok { background: var(--color-ink); color: #fff; border-color: var(--color-ink); }
.mstate.wait { color: var(--color-smoke); }
.mbars { display: flex; align-items: flex-end; gap: 10px; height: 190px; padding: 8px 6px 0; border-bottom: 1px solid var(--color-stone); }
.mbars span { flex: 1; background: var(--color-stone); border-radius: 6px 6px 0 0; }
.mbars span:nth-last-child(-n+3) { background: var(--color-graphite); }
.mlegend { display: flex; gap: 8px; padding-top: 14px; flex-wrap: wrap; }
.msk { height: 14px; border-radius: 9999px; background: var(--color-warm-taupe); margin: 10px 0; }

/* 아이콘 작은 카드 4개 */
.minis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 20px; }
.mini {
  background: var(--color-warm-taupe); border-radius: var(--radius-large); padding: 32px;
  min-height: 320px; display: flex; flex-direction: column; justify-content: space-between; gap: 32px;
}
.chip-icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: var(--color-eggshell); border: 1px solid var(--color-stone); color: var(--color-ink);
}
.mini small { display: block; font: 400 16px/1.4 var(--font-body); color: var(--color-smoke); margin-bottom: 6px; }
.mini p { margin: 0; font: 400 18px/1.45 var(--font-body); color: var(--color-ink); }

/* 이용 안내 */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 0; padding: 0; list-style: none; }
.steps li { border-top: 1px solid var(--color-stone); padding-top: 20px; }
.steps b { display: block; font: 400 13px/1 var(--font-mono); color: var(--color-ash); margin-bottom: 12px; }
.steps strong { display: block; font-weight: 500; margin-bottom: 4px; }
.steps span { color: var(--color-smoke); font-size: 14px; }

/* 로그인/권한 없음 */
.auth-wrap { min-height: calc(100vh - 50px - 88px); display: grid; place-items: center; padding: 48px 0; }
.auth-card { width: 100%; max-width: 420px; background: var(--color-warm-taupe); border-radius: var(--radius-large); padding: 40px 32px; }
.auth-card h1 { margin: 0 0 8px; }
.auth-card .sub { margin: 0 0 28px; color: var(--color-smoke); font-size: 15px; }
.field { display: block; margin-bottom: 16px; }
.field span { display: block; font: 500 13px/1 var(--font-body); color: var(--color-graphite); margin-bottom: 8px; }
.field input {
  width: 100%; height: 44px; padding: 0 14px; border-radius: var(--radius-input);
  border: 1px solid var(--color-stone); background: var(--color-eggshell);
  font: 400 16px/1 var(--font-body); color: var(--color-ink);
}
.field input:focus { outline: 2px solid var(--color-ink); outline-offset: 1px; }
.notice { background: var(--color-eggshell); border: 1px solid var(--color-stone); border-radius: 10px; padding: 12px 14px; font-size: 14px; margin-bottom: 20px; }
.auth-card .btn { width: 100%; height: 44px; }
.auth-foot { margin-top: 20px; font-size: 13px; color: var(--color-smoke); text-align: center; }

/* 푸터 */
.foot { border-top: 1px solid var(--color-stone); padding: 28px 0; font: 400 13px/1.5 var(--font-mono); color: var(--color-ash); }

@media (max-width: 900px) {
  .wrap { padding: 0 24px; }
  .hero { padding: 56px 0 48px; }
  .hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .display { font-size: 36px; letter-spacing: -.72px; }
  .heading { font-size: 28px; }
  .band, .section { padding: 64px 0; }
  .steps { grid-template-columns: 1fr; }
  .panel { grid-template-columns: 1fr; padding: 28px; min-height: 0; }
  .panel-visual { min-height: 280px; order: -1; }
  .sphere.xl { width: 220px; height: 220px; }
  .spheres { grid-template-columns: 1fr; gap: 40px; }
  .logos { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .fsec { padding: 64px 0; }
  .fhead { grid-template-columns: 1fr; gap: 20px; margin-bottom: 32px; }
  .fh { font-size: 30px; letter-spacing: -.6px; }
  .fgrid { grid-template-columns: 1fr; }
  .fcard { min-height: 460px; padding: 24px; }
  .fcard .stage { inset: 0 0 140px 0; padding: 20px; }
  .fcard.grad .stage { inset: 0 0 140px 20px; padding: 0; }
  .mrow { grid-template-columns: 1fr auto; }
  .mrow .mmedia { display: none; }
  .mrow.acc { grid-template-columns: 1fr auto; }
  .mbars { height: 150px; gap: 6px; }
  .minis { grid-template-columns: 1fr 1fr; gap: 12px; }
  .mini { min-height: 240px; padding: 22px; }
  .mini p { font-size: 15px; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .who { display: none; }
  .nav-in { gap: 12px; }
  .nav-links { gap: 0; }
  .nav-links a { padding: 6px 8px; font-size: 13px; }
}
@media (max-width: 560px) {
  .nav-links { display: none; }
  .nav-in { justify-content: space-between; }
}