:root {
  color-scheme: light;
  --bg: #f3f5ef;
  --panel: #ffffff;
  --ink: #121816;
  --muted: #58645f;
  --line: rgba(18, 24, 22, 0.13);
  --dark: #101412;
  --green: #1e7a5c;
  --amber: #b8792b;
  --blue: #315f8a;
  --red: #a64d3f;
  --soft: #e8eee7;
  --shadow: 0 30px 80px rgba(17, 28, 24, 0.17);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    linear-gradient(90deg, rgba(18, 24, 22, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(18, 24, 22, 0.035) 1px, transparent 1px),
    linear-gradient(135deg, rgba(30, 122, 92, 0.12), transparent 34rem),
    var(--bg);
  background-size: 72px 72px, 72px 72px, auto, auto;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 30;
  transform: translateY(-220%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 0.65rem 0.9rem;
}

.skip-link:focus {
  transform: translateY(0);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--line);
  background: rgba(243, 245, 239, 0.92);
  padding: 1rem clamp(1rem, 4vw, 3.5rem);
  backdrop-filter: blur(16px);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: max-content;
  font-weight: 900;
}

.brand-mark {
  display: grid;
  width: 2.35rem;
  height: 2.35rem;
  place-items: center;
  border-radius: 8px;
  background: var(--dark);
  color: #f5fff8;
  font-size: 0.75rem;
}

.topbar p {
  max-width: 740px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: right;
}

main {
  overflow: hidden;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(520px, 1.22fr);
  gap: clamp(2rem, 4vw, 4.6rem);
  align-items: center;
  min-height: 680px;
  padding: clamp(2.4rem, 5vw, 4.8rem) clamp(1rem, 5vw, 5rem) 3.3rem;
}

.hero-copy {
  max-width: 670px;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 1.15rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 4.8rem;
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0.8rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 3.25rem;
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.45rem;
  font-size: 1.03rem;
  line-height: 1.2;
}

.hero-copy p,
.section-head p,
.limits p {
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-rule {
  display: grid;
  gap: 0.35rem;
  max-width: 30rem;
  margin-top: 1.6rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
  padding: 1rem;
}

.hero-rule strong,
.board-top span,
.mobile-frame small,
.screen-bar span,
.schema-grid span {
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-rule span {
  color: var(--ink);
  font-weight: 800;
}

.product-stage {
  position: relative;
  min-height: 575px;
}

.manager-board,
.mobile-frame,
.flow-rail article,
.schema-grid article,
.screen-card,
.qa-table,
.limits {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 18px 60px rgba(17, 28, 24, 0.08);
}

.manager-board {
  overflow: hidden;
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 1rem;
}

.board-top,
.board-footer,
.mobile-app header,
.mobile-total,
.screen-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.board-top {
  border-bottom: 1px solid var(--line);
  padding: 0.3rem 0 1rem;
}

.board-top b {
  border-radius: 8px;
  background: var(--soft);
  padding: 0.46rem 0.7rem;
  color: var(--dark);
  font-size: 0.78rem;
}

.unit-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 1rem 0;
}

.unit-strip article,
.status-card,
.consumption-list div,
.mobile-total {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fbf6;
  padding: 0.82rem;
}

.unit-strip span,
.unit-strip small {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
}

.unit-strip strong {
  display: block;
  margin: 0.1rem 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.75rem;
}

.room-map {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}

.room {
  min-height: 6.2rem;
  border-radius: 8px;
  padding: 0.9rem;
  color: #f7fff8;
}

.room span {
  display: block;
  margin-bottom: 1.7rem;
  font-size: 0.8rem;
  font-weight: 900;
}

.room b {
  font-size: 0.95rem;
}

.room.free {
  background: var(--green);
}

.room.busy {
  background: var(--dark);
}

.room.cleaning {
  background: var(--blue);
}

.room.close {
  background: var(--amber);
}

.board-footer {
  margin-top: 0.9rem;
  border-radius: 8px;
  background: #111816;
  color: #f5fff8;
  padding: 1rem;
}

.board-footer span {
  color: #94cbb8;
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.mobile-frame {
  position: absolute;
  right: 1rem;
  bottom: -1.7rem;
  width: min(21rem, 44%);
  border-radius: 8px;
  background: #111816;
  padding: 0.85rem;
  box-shadow: 0 28px 80px rgba(17, 24, 22, 0.26);
}

.device-cap {
  width: 4.5rem;
  height: 0.35rem;
  margin: 0.25rem auto 0.8rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.22);
}

.mobile-app {
  display: grid;
  gap: 0.75rem;
  border-radius: 8px;
  background: #f7fbf5;
  padding: 0.95rem;
}

.mobile-app header {
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.7rem;
}

.mobile-app header span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
}

.status-card b,
.status-card span {
  display: block;
}

.status-card b {
  margin: 0.22rem 0;
}

.status-card span,
.consumption-list span,
.mobile-total span {
  color: var(--muted);
}

.consumption-list {
  display: grid;
  gap: 0.5rem;
}

.consumption-list div {
  display: flex;
  justify-content: space-between;
  box-shadow: none;
}

.mobile-total {
  background: var(--dark);
  color: #f8fff9;
}

.mobile-total span {
  color: #a8cfbf;
}

.workflow,
.data-model,
.screens,
.qa,
.limits {
  padding: clamp(3.4rem, 6vw, 5.6rem) clamp(1rem, 5vw, 5rem);
}

.section-head {
  max-width: 840px;
  margin-bottom: 1.5rem;
}

.flow-rail,
.schema-grid,
.screen-grid {
  display: grid;
  gap: 1rem;
}

.flow-rail {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.flow-rail article,
.schema-grid article,
.screen-card {
  border-radius: 8px;
  box-shadow: none;
  padding: 1.1rem;
}

.flow-rail article > span {
  display: inline-flex;
  margin-bottom: 0.7rem;
  color: var(--green);
  font-weight: 900;
}

.flow-rail p,
.schema-grid p,
.screen-card p,
.qa-row span {
  color: var(--muted);
}

.schema-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.schema-grid article {
  min-height: 8rem;
}

.screen-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.screen-card {
  min-height: 17rem;
  overflow: hidden;
}

.screen-card.dark {
  background: #111816;
  color: #f8fff9;
}

.screen-card.amber {
  background: #fff6e5;
}

.screen-card.green {
  background: #edf8ef;
}

.screen-card.blue {
  background: #edf5fb;
}

.screen-card.dark p,
.screen-card.dark .screen-bar span {
  color: #a8cfbf;
}

.screen-bar b {
  border-radius: 8px;
  background: rgba(18, 24, 22, 0.08);
  padding: 0.34rem 0.54rem;
  font-size: 0.75rem;
}

.screen-card.dark .screen-bar b {
  background: rgba(255, 255, 255, 0.13);
}

.mini-rooms,
.bar-chart {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  margin-top: 1rem;
}

.mini-rooms i,
.mini-lines i,
.bar-chart i {
  display: block;
  border-radius: 8px;
  background: rgba(30, 122, 92, 0.78);
}

.mini-rooms i {
  height: 2.1rem;
}

.mini-lines {
  display: grid;
  gap: 0.55rem;
  margin-top: 1.2rem;
}

.mini-lines i {
  height: 0.7rem;
}

.total-tile {
  display: grid;
  width: 7.4rem;
  height: 7.4rem;
  place-items: center;
  margin-top: 1rem;
  border-radius: 8px;
  background: var(--green);
  color: #f7fff8;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.55rem;
  font-weight: 800;
}

.bar-chart {
  align-items: end;
  height: 7.5rem;
}

.bar-chart i:nth-child(1) { height: 46%; }
.bar-chart i:nth-child(2) { height: 78%; }
.bar-chart i:nth-child(3) { height: 62%; }
.bar-chart i:nth-child(4) { height: 88%; }

.qa-table {
  overflow: hidden;
  border-radius: 8px;
}

.qa-row {
  display: grid;
  grid-template-columns: 0.75fr 1.2fr 1.35fr;
  gap: 1rem;
  border-top: 1px solid var(--line);
  padding: 0.95rem 1rem;
}

.qa-row.head {
  border-top: 0;
  background: var(--dark);
  color: #f8fff9;
  font-weight: 900;
}

.limits {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 1.4rem;
  border-width: 1px 0 0;
  border-radius: 0;
  box-shadow: none;
}

.limits ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.limits li + li {
  margin-top: 0.55rem;
}

@media (max-width: 1100px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .product-stage {
    min-height: auto;
  }

  .mobile-frame {
    position: relative;
    right: auto;
    bottom: auto;
    width: min(24rem, 100%);
    margin: 1rem auto 0;
  }

  .flow-rail,
  .schema-grid,
  .screen-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar p {
    text-align: left;
  }

  .hero {
    min-height: 0;
    padding-top: 2rem;
  }

  h1 {
    font-size: 2.55rem;
  }

  h2 {
    font-size: 2.15rem;
  }

  .unit-strip,
  .room-map,
  .flow-rail,
  .schema-grid,
  .screen-grid,
  .limits {
    grid-template-columns: 1fr;
  }

  .qa-row {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .workflow,
  .data-model,
  .screens,
  .qa,
  .limits {
    padding-top: 3.2rem;
    padding-bottom: 3.2rem;
  }
}