@font-face { font-family: "Geist"; font-weight: 400; font-style: normal; font-display: swap; src: url("/fonts/geist-400.woff") format("woff"); }
@font-face { font-family: "Geist"; font-weight: 500; font-style: normal; font-display: swap; src: url("/fonts/geist-500.woff") format("woff"); }
@font-face { font-family: "Geist"; font-weight: 600; font-style: normal; font-display: swap; src: url("/fonts/geist-600.woff") format("woff"); }

:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --ink: #1d1d1f;
  --gray: #6e6e73;
  --gray-2: #86868b;
  --hair: #d2d2d7;
  --blade: #EC6425;
  --link: #C4500F;
  --wrap: 1024px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Geist", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 17px/1.47 var(--font); letter-spacing: -0.022em;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 600; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 760px; }
.center { text-align: center; }
section { padding: 120px 0; }
.alt { background: var(--bg-alt); }

h2 { font-size: clamp(36px, 5.2vw, 56px); line-height: 1.07; letter-spacing: -0.028em; }
.eye { font-size: 21px; font-weight: 600; color: var(--blade); letter-spacing: -0.015em; margin-bottom: 10px; }
.sub { font-size: 21px; line-height: 1.38; color: var(--gray); max-width: 640px; margin: 22px auto 0; letter-spacing: -0.02em; }
.center .sub { margin-left: auto; margin-right: auto; }

/* düğmeler */
.pill {
  display: inline-block; background: var(--ink); color: #fff;
  font-size: 17px; font-weight: 400; padding: 12px 22px; border-radius: 980px;
  transition: background-color .2s ease;
}
.pill:hover { background: #000; }
.pill-sm { font-size: 12px; padding: 4px 11px; line-height: 1.33; }
.pill-line { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px rgba(0,0,0,.28); }
.pill-line:hover { background: rgba(0,0,0,.05); }
.more { color: var(--link); font-size: 17px; }
.more::after { content: " ›"; }
.more:hover { text-decoration: underline; }
.actions { display: flex; justify-content: center; align-items: center; gap: 30px; margin-top: 34px; flex-wrap: wrap; }

/* üst menü */
.nav {
  position: sticky; top: 0; z-index: 30; height: 48px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,.08);
}
.nav-in { max-width: 1024px; margin: 0 auto; padding: 0 22px; height: 100%; display: flex; align-items: center; }
.brand { display: flex; align-items: center; gap: 7px; font-size: 17px; font-weight: 600; letter-spacing: -0.02em; }
.brand .mark { width: 22px; height: 22px; }
.links { display: flex; gap: 34px; margin: 0 auto; }
.links a { font-size: 12px; color: rgba(0,0,0,.8); }
.links a:hover { color: #000; }
.nav-r { display: flex; align-items: center; gap: 10px; }
.lang { display: inline-flex; gap: 10px; font-size: 12px; }
.lang a { color: var(--gray-2); }
.lang a:hover { color: var(--ink); }
.lang span { color: var(--ink); }

/* giriş */
.hero { padding: 84px 0 0; overflow: hidden; }
.hero-icon { width: 84px; height: 84px; margin: 0 auto 26px; border-radius: 19px; box-shadow: 0 6px 20px rgba(0,0,0,.12); }
h1 { font-size: clamp(48px, 8vw, 88px); line-height: 1.04; letter-spacing: -0.032em; }
h1, h2, h3 { overflow-wrap: break-word; hyphens: manual; }
@media (max-width: 640px) {
  h1 { font-size: min(48px, 11.4vw); }
  /* "Steuerschaltungen." tek kelime: 360 px'te de sığsın */
  :lang(de) .hero h1 { font-size: min(48px, 10.2vw); }
}
.lead { font-size: clamp(21px, 2.4vw, 28px); line-height: 1.3; color: var(--gray); max-width: 680px; margin: 22px auto 0; letter-spacing: -0.02em; }
.hero-phones {
  display: flex; justify-content: center; align-items: flex-start; gap: 34px;
  margin-top: 72px; height: 560px; overflow: hidden;
  -webkit-mask-image: linear-gradient(#000 82%, transparent); mask-image: linear-gradient(#000 82%, transparent);
}
.hero-phones .mid { width: 300px; }
.hero-phones .side { width: 262px; margin-top: 64px; }

/* telefon çerçevesi */
.phone {
  flex: none; position: relative;
  background: #1d1d1f; padding: 9px; border-radius: 48px;
  box-shadow: 0 0 0 1.5px #3a3a3c inset, 0 0 0 1px #b8b8bd, 0 18px 36px -20px rgba(0,0,0,.3);
}
.phone img, .phone video { display: block; width: 100%; height: auto; border-radius: 40px; background: #fff; }

/* büyük cümle */
.statement { padding: 140px 0 130px; }
.statement p { font-size: clamp(28px, 3.6vw, 40px); line-height: 1.2; font-weight: 600; letter-spacing: -0.025em; color: var(--gray-2); }
.statement b { color: var(--ink); font-weight: 600; }

/* canlı devre */
.demo {
  margin: 64px auto 0; max-width: 780px; background: #fff; border-radius: 30px;
  padding: 40px 48px 34px; box-shadow: 0 2px 6px rgba(0,0,0,.03), 0 24px 60px -30px rgba(0,0,0,.18);
}
.ckt { width: 100%; height: auto; display: block; max-width: 560px; margin: 0 auto; }
.ckt .w path, .ckt .w rect, .ckt .w circle { fill: none; stroke: #1d1d1f; stroke-width: 1.8; stroke-linecap: square; }
.ckt .w .body { fill: #fff; }
.ckt .w .coil, .ckt .w .lamp { transition: fill .25s ease; }
.ckt .act path { stroke: #86868b; stroke-dasharray: 3 3; stroke-width: 1.4; stroke-linecap: butt; }
.ckt .blade path { stroke-linecap: round; stroke-width: 2; }
.ckt .dots circle { fill: #1d1d1f; }
.ckt .lbl text { font: 500 12px var(--font); letter-spacing: 0; fill: #1d1d1f; }
.ckt .lbl .sm { font-size: 9.5px; fill: #86868b; font-weight: 400; }
.ckt .flow path {
  fill: none; stroke: var(--blade); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round;
  stroke-dasharray: 6 10; opacity: 0; transition: opacity .2s ease;
}
.ckt .flow path.on { opacity: 1; animation: flow .8s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -16; } }
@media (prefers-reduced-motion: reduce) { .ckt .flow path { animation: none; stroke-dasharray: none; } }
.demo.on .ckt .coil { fill: #FDE7DB; }
.demo.lamp .ckt .lamp { fill: #FFD9A0; }
.demo-bar { display: flex; justify-content: center; gap: 14px; margin-top: 30px; }
.pb {
  display: inline-flex; align-items: center; gap: 10px;
  font: 400 17px var(--font); letter-spacing: -0.02em; color: var(--ink);
  background: var(--bg-alt); border: 0; border-radius: 980px; padding: 10px 22px 10px 12px;
  cursor: pointer; touch-action: manipulation; user-select: none; -webkit-user-select: none;
  transition: background-color .15s ease, transform .1s ease;
}
.pb:hover { background: #ebebef; }
.pb.down { transform: scale(.97); background: #e5e5ea; }
.pb i { width: 26px; height: 26px; border-radius: 50%; box-shadow: inset 0 -2px 0 rgba(0,0,0,.15), 0 1px 2px rgba(0,0,0,.15); }
.pb .go { background: #34A853; }
.pb .st { background: #E5483C; }
.pb:focus-visible { outline: 2px solid var(--blade); outline-offset: 3px; }
.demo-status { text-align: center; margin-top: 16px; font-size: 14px; color: var(--gray); min-height: 1.4em; transition: color .2s; }
.demo.on .demo-status { color: var(--ink); }

/* öne çıkanlar */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 64px; }
.tile {
  background: var(--bg-alt); border-radius: 28px; overflow: hidden; position: relative;
  display: flex; flex-direction: column; min-height: 520px;
}
.tile-txt { padding: 40px 40px 0; }
.tile h3 { font-size: 28px; line-height: 1.14; letter-spacing: -0.025em; }
.tile p { color: var(--gray); font-size: 17px; margin-top: 10px; }
.tile.wide { grid-column: span 2; }
.tile.wide .tile-txt { max-width: 520px; }
.peek { margin-top: auto; display: flex; justify-content: center; gap: 22px; height: 300px; padding-top: 36px; overflow: hidden; }
.peek .phone { width: 250px; align-self: flex-start; }
.tile.wide .peek { height: 320px; }
.tile.num { justify-content: flex-end; padding: 40px; }
.tile.num .big { font-size: 128px; font-weight: 600; letter-spacing: -0.05em; line-height: 1; color: var(--blade); }
.tile.num p { font-size: 21px; line-height: 1.3; color: var(--ink); margin-top: 14px; letter-spacing: -0.02em; }
.tile.dark { background: #000; color: #f5f5f7; }
.tile.dark p { color: #a1a1a6; }
.ges-vis { margin-top: auto; padding: 0 40px 40px; }
.ges-vis svg { width: 100%; height: auto; display: block; }
.kw { display: flex; align-items: baseline; gap: 8px; margin-top: 18px; }
.kw b { font-size: 48px; font-weight: 600; letter-spacing: -0.04em; color: #fff; font-variant-numeric: tabular-nums; }
.kw span { color: #a1a1a6; font-size: 17px; }
.tile.small { min-height: 0; padding: 36px 40px 40px; }
.tile.small h3 { font-size: 24px; }

/* görevler */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split-txt .sub { margin-left: 0; }
.pair { display: flex; gap: 22px; justify-content: center; align-items: flex-start; }
.pair .phone { width: 250px; }
.pair .phone:nth-child(2) { margin-top: 80px; }

/* kütüphane */
.lib { background: #000; color: #f5f5f7; overflow: hidden; padding-bottom: 110px; }
.lib .sub { color: #a1a1a6; }
.lib-phone { display: flex; justify-content: center; margin: 72px 0 64px; }
.lib-phone .phone { width: 320px; background: #2c2c2e; box-shadow: 0 0 0 1.5px #48484a inset, 0 0 0 1px #3a3a3c; }
.cats { text-align: center; color: #86868b; font-size: 21px; line-height: 1.5; letter-spacing: -0.02em; }

/* web */
.screen {
  margin: 72px auto 0; max-width: 940px; background: #fff; border-radius: 16px; overflow: hidden;
  box-shadow: 0 0 0 1px rgba(0,0,0,.08), 0 40px 90px -40px rgba(0,0,0,.35);
}
.screen-bar { height: 40px; display: flex; align-items: center; gap: 8px; padding: 0 16px; background: #f5f5f7; border-bottom: 1px solid #e5e5ea; }
.screen-bar i { width: 12px; height: 12px; border-radius: 50%; background: #d2d2d7; }
.screen-bar span { margin: 0 auto; font-size: 12px; color: var(--gray); background: #fff; padding: 4px 60px; border-radius: 7px; transform: translateX(-26px); }

/* planlar */
.plan-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; max-width: 820px; margin: 64px auto 0; }
.plan { background: #fff; border-radius: 28px; padding: 40px; }
.plan h3 { font-size: 32px; letter-spacing: -0.025em; margin-bottom: 18px; }
.plan.pro h3 { color: var(--blade); }
.plan ul { list-style: none; padding: 0; margin: 0; }
.plan li { padding: 14px 0; border-top: 1px solid #e8e8ed; font-size: 17px; }
.note { text-align: center; margin-top: 26px; font-size: 14px; color: var(--gray-2); }

/* sorular */
.faq h2 { margin-bottom: 48px; }
.qa details { border-bottom: 1px solid var(--hair); }
.qa summary {
  list-style: none; cursor: pointer; padding: 24px 44px 24px 0; position: relative;
  font-size: 21px; font-weight: 600; letter-spacing: -0.02em;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::before, .qa summary::after {
  content: ""; position: absolute; right: 4px; top: 50%; width: 16px; height: 1.6px; background: var(--ink);
  transition: transform .3s ease;
}
.qa summary::after { transform: rotate(90deg); }
.qa details[open] summary::after { transform: rotate(0); }
.qa details p { padding: 0 44px 26px 0; color: var(--gray); font-size: 17px; }
.qa summary:focus-visible { outline: 2px solid var(--blade); outline-offset: 4px; border-radius: 6px; }

/* indir */
.final { padding: 130px 0; }
.final-icon { width: 128px; height: 128px; margin: 0 auto 34px; border-radius: 29px; box-shadow: 0 10px 30px rgba(0,0,0,.14); }
.badges { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin-top: 38px; }
.badge {
  display: inline-flex; align-items: center; gap: 10px; height: 54px; padding: 0 20px 0 16px;
  background: #000; color: #fff; border-radius: 12px; transition: background-color .2s;
}
.badge:hover { background: #1d1d1f; }
.badge svg { width: 26px; height: 26px; flex: none; }
.badge span { display: flex; flex-direction: column; line-height: 1.05; text-align: left; }
.badge small { font-size: 11px; letter-spacing: 0; margin-bottom: 3px; }
.badge b { font-size: 21px; font-weight: 600; letter-spacing: -0.02em; }

/* alt bilgi */
.foot { background: var(--bg-alt); border-top: 1px solid #e5e5ea; padding: 22px 0 34px; font-size: 12px; color: var(--gray); }
.foot-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding-bottom: 14px; border-bottom: 1px solid var(--hair); margin-bottom: 14px; }
.foot nav { display: flex; flex-wrap: wrap; }
.foot nav a { color: #424245; padding-right: 10px; margin-right: 10px; border-right: 1px solid var(--hair); }
.foot nav a:last-child { border: 0; }
.foot nav a:hover { text-decoration: underline; }
.foot-r { display: flex; align-items: center; gap: 22px; }
.social { display: flex; gap: 6px; }
.social a { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; color: #424245; transition: background-color .2s, color .2s; }
.social a:hover { background: #e8e8ed; color: var(--ink); }
.social svg { width: 19px; height: 19px; }

/* görünürken belir */
.rv { opacity: 0; transform: translate3d(0,30px,0); transition: opacity 1s cubic-bezier(.2,.7,.2,1), transform 1s cubic-bezier(.2,.7,.2,1); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } }

/* dar ekranlar */
@media (max-width: 900px) {
  .links { display: none; }
  .nav-r { margin-left: auto; }
  .bento { grid-template-columns: 1fr 1fr; }
  .tile.wide { grid-column: span 2; }
  .split { grid-template-columns: 1fr; text-align: center; }
  .split-txt .sub { margin-left: auto; }
}
@media (max-width: 640px) {
  section { padding: 84px 0; }
  .sub { font-size: 19px; }
  .hero { padding-top: 56px; }
  .hero-icon { width: 68px; height: 68px; border-radius: 15px; }
  .hero-phones { height: 440px; gap: 14px; margin-top: 56px; }
  .hero-phones .mid { width: 220px; }
  .hero-phones .side { width: 190px; margin-top: 48px; }
  .phone { border-radius: 38px; padding: 7px; }
  .phone img, .phone video { border-radius: 32px; }
  .statement { padding: 96px 0 90px; }
  .demo { padding: 22px 12px 22px; border-radius: 24px; margin-top: 44px; }
  .bento { grid-template-columns: 1fr; gap: 14px; }
  .tile.wide { grid-column: auto; }
  .tile { min-height: 0; border-radius: 24px; }
  .tile-txt { padding: 32px 28px 0; }
  .tile.num { padding: 32px 28px; }
  .tile.num .big { font-size: 96px; }
  .peek { height: 260px; }
  .tile.wide .peek { height: 260px; }
  .peek .phone { width: 200px; }
  .peek.two .phone { width: 46%; }
  .ges-vis { padding: 0 28px 32px; margin-top: 28px; }
  .tile.small { padding: 28px; }
  .pair .phone { width: 46%; }
  .pair .phone:nth-child(2) { margin-top: 48px; }
  .lib-phone .phone { width: 250px; }
  .cats { font-size: 17px; }
  .screen { border-radius: 12px; margin-top: 48px; }
  .screen-bar span { padding: 3px 20px; }
  .plan-grid { grid-template-columns: 1fr; }
  .plan { padding: 32px 28px; }
  .qa summary { font-size: 18px; }
  .final-icon { width: 104px; height: 104px; border-radius: 23px; }
}

/* renkli bölümler */
.peach { background: #FFF1E7; }
.sand { background: #F6F0E6; }
.orange { background: var(--blade); color: #fff; }
.orange .eye { color: rgba(255,255,255,.85); }
.orange .sub { color: rgba(255,255,255,.9); }
.orange .demo { box-shadow: 0 30px 70px -30px rgba(120,40,0,.45); }
.final.orange .final-icon { box-shadow: 0 14px 40px rgba(120,40,0,.35); }
.final.orange .badge:hover { background: #1d1d1f; }
.hero.peach .hero-phones { -webkit-mask-image: none; mask-image: none; }
.hero.peach { padding-bottom: 0; }
.t-peach { background: #FFF1E7; }
.t-sand { background: #F6F0E6; }
.t-gray { background: #F2F2F4; }
.t-green { background: #E8F3EA; }
.t-sky { background: #EAF0F6; }
.t-orange { background: var(--blade); }
.tile.t-orange .big { color: #fff; }
.tile.t-orange p { color: #fff; }
.plans.peach .plan { box-shadow: 0 1px 2px rgba(120,40,0,.05); }
.plans.peach .plan li { border-top-color: #F3E2D6; }

/* kayarken yazı efektleri */
.fx .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .12em; margin-bottom: -.12em; }
.fx .w > span { display: inline-block; transform: translateY(110%); transition: transform 1s cubic-bezier(.16,.84,.3,1); transition-delay: calc(var(--i) * 55ms); }
.fx.in .w > span { transform: none; }
.fade-up { opacity: 0; transform: translateY(16px); transition: opacity .9s ease, transform .9s cubic-bezier(.16,.84,.3,1); transition-delay: var(--d, .25s); }
.fade-up.in { opacity: 1; transform: none; }
.statement .sw { color: #c7c7cc; transition: color .35s ease; }
.statement .sw.lit { color: var(--ink); }
.statement.peach-done .sw { color: inherit; }
.hero-phones .side { will-change: transform; }
@media (prefers-reduced-motion: reduce) {
  .fx .w > span, .fade-up { transform: none !important; opacity: 1 !important; transition: none; }
  .statement .sw { color: inherit; }
}

/* kitaplar */
.shelf { display: flex; justify-content: center; gap: 56px; margin: 72px auto 8px; flex-wrap: wrap; }
.book { width: 280px; text-align: center; }
.book img { width: 100%; border-radius: 6px; box-shadow: 0 1px 2px rgba(60,30,0,.08), 0 22px 40px -22px rgba(60,30,0,.45); transition: transform .4s cubic-bezier(.2,.7,.2,1); }
.book:hover img { transform: translate3d(0,-6px,0); }
.book h3 { font-size: 19px; letter-spacing: -0.02em; margin-top: 26px; line-height: 1.25; }
.book p { color: var(--gray); font-size: 15px; margin-top: 6px; line-height: 1.4; }
@media (max-width: 640px) { .shelf { gap: 44px; } .book { width: 230px; } }

/* alt sayfalar */
.doc { padding: 64px 0 110px; }
.doc .back { display: inline-block; color: var(--link); font-size: 15px; margin-bottom: 26px; }
.doc .back::before { content: "‹ "; }
.doc .back:hover { text-decoration: underline; }
.doc h1 { font-size: clamp(36px, 5vw, 48px); line-height: 1.08; letter-spacing: -0.028em; }
.doc-meta { color: var(--gray-2); font-size: 15px; margin-top: 12px; }
.doc-lead { color: var(--gray); font-size: 21px; line-height: 1.38; letter-spacing: -0.02em; margin-top: 18px; }
.doc h2 { font-size: 28px; letter-spacing: -0.024em; margin: 56px 0 14px; }
.doc h3 { font-size: 19px; letter-spacing: -0.02em; margin: 30px 0 8px; }
.doc p { color: #424245; font-size: 17px; line-height: 1.6; margin-top: 12px; }
.doc p a { color: var(--link); }
.doc p a:hover { text-decoration: underline; }
.doc .qa { margin-top: 8px; border-top: 1px solid var(--hair); }
.doc .qa summary { font-size: 19px; padding: 20px 44px 20px 0; }
.doc .qa details p { margin-top: 0; padding: 0 44px 22px 0; }
@media (max-width: 640px) { .doc { padding: 40px 0 84px; } .doc h2 { margin-top: 44px; } }
.doc-page { min-height: 100vh; display: flex; flex-direction: column; }
.doc-page .doc { flex: 1; }
.doc-page .nav-r { margin-left: auto; }

/* Devre sayfaları */
.circ { padding-bottom: 0; }
.crumbs { display: flex; flex-wrap: wrap; gap: 0 8px; font-size: 14px; color: var(--gray); margin-bottom: 30px; }
.crumbs a { color: var(--link); }
.crumbs a:hover { text-decoration: underline; }
.crumbs i { font-style: normal; color: var(--hair); }
.crumbs span { color: var(--gray); }
.circ .eye { font-size: 17px; margin-bottom: 8px; }
.schem { position: relative; margin: 44px auto 0; max-width: 980px; background: #fff; border: 1px solid #e5e5ea; border-radius: 18px; overflow: hidden; }
.schem img { display: block; width: 100%; height: auto; }
.schem .lock { position: absolute; left: 0; right: 0; bottom: 0; display: flex; flex-direction: column; align-items: center; gap: 14px; padding: 48px 22px 30px; text-align: center; background: linear-gradient(rgba(255,255,255,0), #fff 50%); }
.schem .lock span { font-size: 21px; font-weight: 600; letter-spacing: -0.02em; color: var(--ink); }
.schem.preview img { min-height: 260px; object-fit: cover; object-position: top; }
.parts { margin-top: 8px; border-top: 1px solid var(--hair); }
.parts div { display: flex; justify-content: space-between; gap: 22px; padding: 13px 0; border-bottom: 1px solid var(--hair); font-size: 17px; }
.parts dt { color: var(--ink); }
.parts dd { margin: 0; color: var(--gray); text-align: right; }
.book-box { display: flex; gap: 22px; align-items: center; margin-top: 34px; padding: 22px; background: #F6F0E6; border-radius: 18px; color: var(--ink); }
.book-box img { width: 92px; height: auto; flex: none; border-radius: 4px; box-shadow: 0 6px 18px rgba(60,30,0,.18); }
.book-box > span { display: flex; flex-direction: column; gap: 6px; }
.book-box b { font-size: 19px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; }
.book-box span span { color: #424245; font-size: 16px; line-height: 1.45; }
.book-box i { font-style: normal; color: var(--link); font-size: 16px; margin-top: 4px; }
.book-box i::after { content: " ›"; }
.book-box:hover i { text-decoration: underline; }
.circ-cta { margin-top: 80px; padding: 90px 0; }
.circ-cta h2 { margin: 0 !important; font-size: clamp(32px, 4.6vw, 48px) !important; }
.circ-cta .sub { color: var(--gray) !important; font-size: 21px !important; }
.circ-cta + .wrap { padding-bottom: 110px; }
.rel { list-style: none; padding: 0; margin: 8px 0 0; border-top: 1px solid var(--hair); }
.rel li { border-bottom: 1px solid var(--hair); }
.rel a { display: block; padding: 14px 0; font-size: 17px; color: var(--ink); }
.rel a:hover { color: var(--link); }
.actions.left { justify-content: flex-start; }
.circ .cgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 18px; margin-top: 18px; }
.circ .wrap > h2 { font-size: 28px; letter-spacing: -0.024em; margin: 64px 0 0; }
.ccard { display: flex; flex-direction: column; gap: 12px; color: var(--ink); }
.ccard .thumb { display: block; aspect-ratio: 4 / 3; background: #fff; border: 1px solid #e5e5ea; border-radius: 14px; overflow: hidden; }
.ccard img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: top left; transition: transform .3s ease; }
.ccard b { font-weight: 500; font-size: 15px; line-height: 1.35; letter-spacing: -0.01em; }
.ccard:hover b { color: var(--link); }
.ccard:hover img { transform: scale(1.03); }
.lib .actions .more { color: #ff8a4c; }
@media (max-width: 640px) {
  .book-box { padding: 18px; gap: 16px; }
  .book-box img { width: 72px; }
  .book-box b { font-size: 17px; }
  .schem { border-radius: 12px; margin-top: 32px; }
  .schem .lock span { font-size: 17px; }
  .circ .cgrid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .parts div { font-size: 15px; }
  .circ-cta { padding: 64px 0; margin-top: 56px; }
}
@media (prefers-reduced-motion: reduce) { .ccard img { transition: none; } }
.ccard .thumb.sq { aspect-ratio: 1 / 1; }
.ccard .thumb.sq img { object-fit: contain; object-position: center; padding: 8%; }
.schem.dev { max-width: 560px; padding: 24px; }
.schem.dev img { max-height: 520px; width: auto; max-width: 100%; margin: 0 auto; }
.parts dt a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--hair); text-underline-offset: 3px; }
.parts dt a:hover { color: var(--link); text-decoration-color: currentColor; }
.doc h3 + .parts { margin-top: 4px; }