:root {
  --ink: #0b1729;
  --muted: #607086;
  --line: #dfe7ef;
  --paper: #f7f9fc;
  --white: #ffffff;
  --blue: #2f80ff;
  --blue-deep: #1261d6;
  --mint: #32d8a0;
  --navy: #07192f;
  --navy-light: #0c2747;
  --amber: #ffb64a;
  --shadow: 0 32px 80px rgba(15, 42, 73, 0.14);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--white);
  color: var(--navy);
  transform: translateY(-160%);
}

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

.shell {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  color: #dfeaff;
  transition: background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header.scrolled,
.site-header.nav-open {
  border-color: rgba(255, 255, 255, 0.08);
  background: rgba(7, 25, 47, 0.93);
  box-shadow: 0 12px 30px rgba(2, 13, 28, 0.18);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  background: linear-gradient(145deg, rgba(47, 128, 255, 0.98), rgba(38, 208, 163, 0.9));
  box-shadow: 0 10px 24px rgba(21, 116, 231, 0.28);
}

.brand-mark span {
  width: 3px;
  border-radius: 99px;
  background: white;
}

.brand-mark span:nth-child(1) { height: 9px; }
.brand-mark span:nth-child(2) { height: 18px; }
.brand-mark span:nth-child(3) { height: 13px; }
.brand-mark span:nth-child(4) { height: 21px; }

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-copy strong {
  color: white;
  font-size: 20px;
  font-weight: 760;
  letter-spacing: 0.02em;
}

.brand-copy small {
  margin-top: 5px;
  color: #94a9c6;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
}

.site-nav > a:not(.button) {
  color: #b8c8dc;
  transition: color 160ms ease;
}

.site-nav > a:not(.button):hover,
.site-nav > a:not(.button):focus-visible {
  color: white;
}

.site-nav .nav-login {
  margin-left: 8px;
  color: white;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 9px;
  border: 0;
  background: transparent;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 4px auto;
  border-radius: 3px;
  background: white;
  transition: transform 180ms ease, opacity 180ms ease;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 50px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 13px;
  background: linear-gradient(135deg, var(--blue), #246de5);
  box-shadow: 0 14px 30px rgba(35, 111, 224, 0.26);
  color: white;
  font-size: 15px;
  font-weight: 650;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(35, 111, 224, 0.34);
}

.button svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.button-small {
  min-height: 38px;
  padding: 0 17px;
  border-radius: 10px;
  font-size: 13px;
}

.hero {
  position: relative;
  min-height: 860px;
  overflow: hidden;
  padding: 154px 0 70px;
  background: var(--navy);
  color: white;
}

.hero-grid,
.cta-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(125, 168, 218, 0.055) 1px, transparent 1px), linear-gradient(90deg, rgba(125, 168, 218, 0.055) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 84%);
}

.hero-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(4px);
  pointer-events: none;
}

.hero-orb-one {
  top: -260px;
  right: -170px;
  width: 720px;
  height: 720px;
  background: radial-gradient(circle, rgba(38, 119, 255, 0.23), rgba(38, 119, 255, 0) 68%);
}

.hero-orb-two {
  bottom: -390px;
  left: -260px;
  width: 780px;
  height: 780px;
  background: radial-gradient(circle, rgba(39, 208, 163, 0.13), rgba(39, 208, 163, 0) 68%);
}

.hero-layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 0.88fr 1.12fr;
  gap: 60px;
  align-items: center;
}

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #2977ed;
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow {
  margin-bottom: 28px;
  color: #8eb9ff;
}

.eyebrow-dot {
  position: relative;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 6px rgba(50, 216, 160, 0.12);
}

.hero h1 {
  margin: 0;
  font-size: clamp(46px, 5.1vw, 72px);
  font-weight: 720;
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.hero h1 em {
  color: #82b5ff;
  font-style: normal;
}

.hero-lead {
  max-width: 580px;
  margin: 28px 0 0;
  color: #aebfd4;
  font-size: 17px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 38px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: #dbe8f8;
  font-size: 14px;
  font-weight: 600;
}

.text-link span {
  color: var(--mint);
  font-size: 18px;
  transition: transform 160ms ease;
}

.text-link:hover span,
.text-link:focus-visible span {
  transform: translateX(3px);
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 32px 0 0;
  padding: 0;
  color: #8398b3;
  font-size: 12px;
  list-style: none;
}

.hero-points span {
  margin-right: 5px;
  color: var(--mint);
}

.product-stage {
  position: relative;
  width: 112%;
  margin-right: -12%;
  padding: 40px 0;
}

.stage-glow {
  position: absolute;
  inset: 8% 4% 0 5%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 128, 255, 0.22), transparent 67%);
}

.app-window {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 18px;
  background: #f6f8fc;
  box-shadow: 0 44px 100px rgba(0, 8, 22, 0.48), 0 0 0 8px rgba(255, 255, 255, 0.025);
  color: var(--ink);
  transform: perspective(1400px) rotateY(-4deg) rotateX(1deg);
  transform-origin: center;
}

.window-bar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 48px;
  padding: 0 18px;
  border-bottom: 1px solid #e2e8f0;
  background: white;
  color: #8a99ab;
  font-size: 10px;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dots i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #d9e1e9;
}

.window-title {
  font-weight: 650;
}

.window-status {
  justify-self: end;
  color: #5d7188;
}

.window-status span {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--mint);
}

.window-body {
  display: flex;
  min-height: 420px;
}

.mock-sidebar {
  display: flex;
  align-items: center;
  flex-direction: column;
  width: 62px;
  padding: 18px 0;
  background: #0b213c;
}

.mock-logo {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  margin-bottom: 28px;
  border-radius: 9px;
  background: linear-gradient(145deg, var(--blue), var(--mint));
  color: white;
  font-size: 16px;
  font-weight: 800;
}

.mock-sidebar i {
  position: relative;
  width: 26px;
  height: 26px;
  margin-bottom: 11px;
  border-radius: 8px;
}

.mock-sidebar i::after {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 10px;
  height: 10px;
  border: 1px solid #58718f;
  border-radius: 3px;
  content: "";
}

.mock-sidebar i.active {
  background: rgba(47, 128, 255, 0.2);
}

.mock-sidebar i.active::after {
  border-color: #7fb1ff;
}

.mock-content {
  flex: 1;
  padding: 24px;
}

.mock-heading,
.card-heading,
.billing-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mock-heading div,
.card-heading div,
.billing-head div {
  display: flex;
  flex-direction: column;
}

.mock-heading small,
.card-heading small,
.billing-head small {
  margin-bottom: 4px;
  color: #8393a6;
  font-size: 9px;
}

.mock-heading strong {
  font-size: 18px;
}

.mock-heading > span {
  padding: 7px 10px;
  border: 1px solid #e0e7ee;
  border-radius: 8px;
  background: white;
  color: #74859a;
  font-size: 9px;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 11px;
  margin-top: 18px;
}

.metric-row article {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2px 9px;
  min-width: 0;
  padding: 13px;
  border: 1px solid #e7ecf2;
  border-radius: 12px;
  background: white;
}

.metric-icon {
  grid-row: 1 / span 3;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  font-size: 11px;
}

.metric-blue { background: #eaf2ff; color: var(--blue); }
.metric-mint { background: #e7faf4; color: #12a878; }
.metric-amber { background: #fff4e1; color: #e18c13; }
.metric-row small { color: #8997a8; font-size: 8px; }
.metric-row strong { overflow: hidden; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.metric-row em { color: #a4afbc; font-size: 7px; font-style: normal; }

.chart-card {
  margin-top: 12px;
  padding: 16px 17px 10px;
  border: 1px solid #e7ecf2;
  border-radius: 13px;
  background: white;
}

.card-heading strong { font-size: 11px; }
.chart-legend { color: #8796a8; font-size: 8px; }
.chart-legend span { display: inline-block; width: 7px; height: 7px; margin-right: 5px; border-radius: 50%; background: var(--blue); }

.chart-area {
  position: relative;
  height: 145px;
  margin-top: 12px;
}

.chart-lines {
  position: absolute;
  inset: 0 0 22px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.chart-lines i { height: 1px; background: #edf1f5; }
.chart-area svg { position: absolute; inset: 0 0 22px; width: 100%; height: calc(100% - 22px); overflow: visible; }
.chart-fill { fill: url(#chartFill); }
.chart-line { fill: none; stroke: var(--blue); stroke-width: 3; stroke-linecap: round; }
.chart-area circle { fill: white; stroke: var(--blue); stroke-width: 3; }
.chart-labels { position: absolute; right: 0; bottom: 0; left: 0; display: flex; justify-content: space-between; color: #a4afbc; font-size: 7px; }

.mini-row {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 12px;
  margin-top: 12px;
}

.library-card,
.assignment-card {
  min-width: 0;
  padding: 13px;
  border: 1px solid #e7ecf2;
  border-radius: 12px;
  background: white;
}

.library-card { display: flex; align-items: center; gap: 10px; }
.library-card-icon { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px; background: #edf4ff; color: var(--blue); }
.library-card div:last-child { display: flex; min-width: 0; flex-direction: column; }
.library-card small, .assignment-card > span { color: #8b9aad; font-size: 8px; }
.library-card strong, .assignment-card strong { margin-top: 3px; overflow: hidden; font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.assignment-card { display: flex; flex-direction: column; }
.progress { height: 4px; margin: 7px 0 3px; overflow: hidden; border-radius: 8px; background: #edf1f6; }
.progress i { display: block; width: 72%; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--blue), var(--mint)); }

.floating-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 164px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.38);
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.93);
  box-shadow: 0 20px 42px rgba(0, 12, 30, 0.22);
  color: var(--ink);
  backdrop-filter: blur(10px);
}

.floating-card div { display: flex; flex-direction: column; }
.floating-card small { color: #8796a7; font-size: 8px; }
.floating-card strong { margin-top: 3px; font-size: 10px; }
.floating-device { top: 20px; right: -2px; }
.floating-audio { bottom: 8px; left: -36px; }
.pulse { width: 10px; height: 10px; border: 2px solid white; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 5px rgba(50, 216, 160, 0.17); }
.audio-bars { display: flex; align-items: center; gap: 2px; width: 30px; height: 25px; }
.audio-bars i { width: 3px; border-radius: 9px; background: var(--blue); animation: audio-wave 1.2s ease-in-out infinite; }
.audio-bars i:nth-child(1) { height: 7px; animation-delay: -0.5s; }
.audio-bars i:nth-child(2) { height: 15px; animation-delay: -0.2s; }
.audio-bars i:nth-child(3) { height: 22px; animation-delay: -0.8s; }
.audio-bars i:nth-child(4) { height: 12px; animation-delay: -0.35s; }
.audio-bars i:nth-child(5) { height: 8px; animation-delay: -0.65s; }

@keyframes audio-wave {
  0%, 100% { transform: scaleY(0.55); }
  50% { transform: scaleY(1); }
}

.value-strip {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 84px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.value-strip div {
  display: flex;
  flex-direction: column;
  padding: 24px 26px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.value-strip div:first-child { padding-left: 0; }
.value-strip div:last-child { border-right: 0; }
.value-strip strong { font-size: 14px; font-weight: 650; }
.value-strip span { margin-top: 6px; color: #728aa8; font-size: 11px; }

.section {
  padding: 120px 0;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 60px;
  margin-bottom: 54px;
}

.section-heading h2,
.library-copy h2,
.business-panel h2,
.open-card h2,
.cta-content h2 {
  margin: 14px 0 0;
  font-size: clamp(34px, 4vw, 52px);
  font-weight: 720;
  line-height: 1.16;
  letter-spacing: -0.045em;
}

.section-heading > p {
  max-width: 500px;
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.8;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}

.feature-card {
  position: relative;
  grid-column: span 3;
  min-height: 330px;
  padding: 34px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--white);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.feature-card-wide { grid-column: span 3; }
.feature-card:hover { transform: translateY(-5px); border-color: #cbdcf2; box-shadow: 0 24px 56px rgba(23, 55, 89, 0.1); }
.feature-number { position: absolute; top: 26px; right: 30px; color: #c8d3df; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.feature-card h3 { margin: 28px 0 12px; font-size: 22px; }
.feature-card p { max-width: 470px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.tag-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 24px; }
.tag-row span { padding: 7px 10px; border-radius: 8px; background: #f0f5fb; color: #60758d; font-size: 10px; }

.line-icon,
.feature-icon {
  width: 50px;
  height: 50px;
  color: var(--blue);
}

.line-icon svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.icon-wave { display: flex; align-items: center; justify-content: center; gap: 4px; border-radius: 14px; background: #edf4ff; }
.icon-wave span { width: 3px; border-radius: 5px; background: var(--blue); }
.icon-wave span:nth-child(1) { height: 12px; }
.icon-wave span:nth-child(2) { height: 26px; }
.icon-wave span:nth-child(3) { height: 36px; }
.icon-wave span:nth-child(4) { height: 22px; }
.icon-wave span:nth-child(5) { height: 10px; }

.library-section {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: white;
}

.library-section::before {
  position: absolute;
  top: -250px;
  right: -200px;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 128, 255, 0.18), transparent 68%);
  content: "";
}

.library-layout {
  position: relative;
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 90px;
  align-items: center;
}

.section-kicker-light { color: #88b8ff; }
.library-copy > p { margin: 24px 0 0; color: #a8bad0; font-size: 16px; line-height: 1.8; }
.check-list { margin: 38px 0 0; padding: 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 38px 1fr; gap: 15px; padding: 19px 0; border-top: 1px solid rgba(255, 255, 255, 0.1); }
.check-list li > span { display: grid; place-items: center; width: 30px; height: 30px; border: 1px solid rgba(121, 174, 255, 0.3); border-radius: 9px; color: #82b3ff; font-family: ui-monospace, monospace; font-size: 9px; }
.check-list strong { font-size: 14px; }
.check-list p { margin: 6px 0 0; color: #7890ad; font-size: 12px; line-height: 1.6; }

.library-visual {
  position: relative;
  min-height: 500px;
}

.library-core {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 3;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  width: 230px;
  height: 230px;
  border: 1px solid rgba(122, 176, 255, 0.26);
  border-radius: 50%;
  background: rgba(10, 39, 72, 0.86);
  box-shadow: 0 0 80px rgba(34, 111, 231, 0.22);
  transform: translate(-50%, -50%);
  backdrop-filter: blur(10px);
}

.core-rings,
.core-rings::before,
.core-rings::after {
  position: absolute;
  inset: -28px;
  border: 1px solid rgba(117, 171, 248, 0.09);
  border-radius: 50%;
  content: "";
}

.core-rings::before { inset: -29px; border-style: dashed; animation: spin 28s linear infinite; }
.core-rings::after { inset: -61px; }
@keyframes spin { to { transform: rotate(360deg); } }
.core-mark { display: grid; place-items: center; width: 50px; height: 50px; margin-bottom: 14px; border-radius: 15px; background: linear-gradient(145deg, var(--blue), var(--mint)); font-size: 26px; font-weight: 800; }
.library-core strong { font-size: 16px; }
.library-core small { margin-top: 8px; color: #7e98b8; font-size: 9px; letter-spacing: 0.08em; }

.library-node {
  position: absolute;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 12px;
  width: 178px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  background: rgba(12, 40, 73, 0.92);
  box-shadow: 0 18px 40px rgba(0, 8, 22, 0.3);
}

.library-node div { display: flex; flex-direction: column; }
.library-node small { color: #7891af; font-size: 8px; }
.library-node strong { margin-top: 4px; font-size: 11px; }
.node-icon { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: rgba(47, 128, 255, 0.14); color: #83b4ff; font-size: 13px; font-weight: 700; }
.node-public { top: 34px; left: 8px; }
.node-org-a { top: 28px; right: 0; }
.node-org-b { right: 8px; bottom: 22px; }
.node-lines { position: absolute; inset: 0; width: 100%; height: 100%; fill: none; stroke: rgba(112, 167, 245, 0.32); stroke-width: 1.5; stroke-dasharray: 5 7; }

.workflow-section { background: white; }
.section-heading.centered { display: flex; align-items: center; flex-direction: column; gap: 0; text-align: center; }
.section-heading.centered p { margin-top: 15px; }
.workflow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; counter-reset: steps; }
.workflow-grid li { position: relative; min-height: 230px; padding: 30px 27px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); border-left: 1px solid var(--line); }
.workflow-grid li:first-child { border-radius: 18px 0 0 18px; }
.workflow-grid li:last-child { border-right: 1px solid var(--line); border-radius: 0 18px 18px 0; }
.workflow-grid li:not(:last-child)::after { position: absolute; top: 57px; right: -10px; z-index: 2; display: grid; place-items: center; width: 20px; height: 20px; border: 1px solid var(--line); border-radius: 50%; background: white; color: #8ca0b7; content: "›"; }
.step-index { position: absolute; top: 22px; right: 22px; color: #b9c5d2; font-family: ui-monospace, monospace; font-size: 10px; }
.step-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px; background: #edf4ff; color: var(--blue); font-size: 19px; }
.workflow-grid h3 { margin: 24px 0 8px; font-size: 18px; }
.workflow-grid p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }

.business-section { background: #eff4fa; }
.business-layout { display: grid; grid-template-columns: 1fr 0.8fr; gap: 90px; align-items: center; }
.business-panel > p { max-width: 580px; margin: 24px 0 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.business-points { display: grid; gap: 14px; margin-top: 36px; }
.business-points div { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 16px 0; border-top: 1px solid #d9e3ed; }
.business-points strong { font-size: 14px; }
.business-points span { color: #7b8da1; font-size: 11px; }
.billing-card { padding: 28px; border: 1px solid #dce5ef; border-radius: 22px; background: white; box-shadow: var(--shadow); }
.billing-head strong { font-size: 16px; }
.billing-head > span { padding: 6px 9px; border-radius: 7px; background: #e9faf4; color: #149b70; font-size: 9px; }
.billing-total { margin-top: 22px; padding: 24px; border-radius: 16px; background: var(--navy); color: white; }
.billing-total small { color: #849bb7; font-size: 9px; }
.billing-total strong { display: block; margin-top: 8px; font-size: 26px; letter-spacing: -0.03em; }
.billing-total p { margin: 8px 0 0; color: #8198b4; font-size: 10px; }
.billing-list { margin-top: 12px; }
.billing-list div { display: flex; align-items: center; justify-content: space-between; padding: 15px 4px; border-bottom: 1px solid #e9eef3; font-size: 11px; }
.billing-list span { color: #687b91; }
.billing-list i { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; }
.dot-blue { background: var(--blue); }.dot-mint { background: var(--mint); }.dot-amber { background: var(--amber); }

.open-section { padding: 34px 0 120px; background: #eff4fa; }
.open-card { display: grid; grid-template-columns: auto 1fr auto; gap: 30px; align-items: center; padding: 35px 40px; border: 1px solid #d7e3ee; border-radius: 20px; background: rgba(255, 255, 255, 0.7); }
.open-mark { display: grid; place-items: center; width: 70px; height: 70px; border-radius: 18px; background: #e7f0ff; color: var(--blue); font-family: ui-monospace, monospace; font-size: 20px; font-weight: 700; }
.open-card h2 { margin-top: 8px; font-size: 28px; }
.open-card p { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.text-link-dark { color: var(--ink); white-space: nowrap; }

.cta-section { position: relative; overflow: hidden; padding: 120px 0; background: linear-gradient(135deg, #0a2340, #07192f 58%, #0a2b4d); color: white; text-align: center; }
.cta-grid { opacity: 0.75; mask-image: radial-gradient(circle at center, black 0, transparent 70%); }
.cta-content { position: relative; z-index: 2; }
.cta-content h2 { font-size: clamp(40px, 5vw, 62px); }
.cta-content p { margin: 22px auto 0; color: #99acc4; font-size: 16px; }
.cta-actions { display: flex; justify-content: center; gap: 12px; margin-top: 34px; }
.button-light { background: white; box-shadow: none; color: var(--navy); }
.button-ghost { border-color: rgba(255, 255, 255, 0.2); background: rgba(255, 255, 255, 0.04); box-shadow: none; }
.button-ghost:hover { background: rgba(255, 255, 255, 0.09); }

.site-footer { padding: 34px 0; background: #051425; color: #7e93ad; }
.footer-layout { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 35px; }
.brand-footer .brand-mark { width: 34px; height: 34px; }
.brand-footer .brand-copy strong { font-size: 17px; }
.footer-layout p { margin: 0; font-size: 11px; }
.footer-links { display: flex; gap: 22px; color: #aebfd2; font-size: 11px; }
.footer-layout > small { grid-column: 1 / -1; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.08); font-size: 10px; }

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 600ms ease, transform 600ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-small { transition-delay: 90ms; }
.reveal-delay { transition-delay: 160ms; }
.reveal-delay-long { transition-delay: 240ms; }

@media (max-width: 1060px) {
  .site-nav { gap: 18px; }
  .hero-layout { grid-template-columns: 1fr; }
  .hero-copy { max-width: 780px; }
  .product-stage { width: 94%; margin: 30px auto 0; }
  .hero { padding-top: 140px; }
  .library-layout { gap: 40px; }
  .business-layout { gap: 45px; }
}

@media (max-width: 820px) {
  .shell { width: min(100% - 32px, 680px); }
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    top: 76px;
    right: 0;
    left: 0;
    display: none;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(7, 25, 47, 0.98);
  }
  .site-header.nav-open .site-nav { display: flex; }
  .site-nav > a:not(.button) { padding: 13px 4px; }
  .site-nav .nav-login { margin-left: 0; }
  .site-nav .button { margin-top: 10px; }
  .site-header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .site-header.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .site-header.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
  .hero { min-height: auto; padding-bottom: 54px; }
  .hero h1 { font-size: clamp(42px, 10vw, 60px); }
  .product-stage { width: 100%; }
  .app-window { transform: none; }
  .floating-device { right: -10px; }
  .floating-audio { left: -10px; }
  .value-strip { grid-template-columns: repeat(2, 1fr); margin-top: 60px; }
  .value-strip div:nth-child(2) { border-right: 0; }
  .value-strip div:nth-child(-n+2) { border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
  .value-strip div:first-child { padding-left: 26px; }
  .section { padding: 88px 0; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 22px; }
  .feature-card, .feature-card-wide { grid-column: 1 / -1; }
  .library-layout, .business-layout { grid-template-columns: 1fr; }
  .library-visual { min-height: 460px; }
  .workflow-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .workflow-grid li, .workflow-grid li:first-child, .workflow-grid li:last-child { border: 1px solid var(--line); border-radius: 14px; }
  .workflow-grid li::after { display: none !important; }
  .open-card { grid-template-columns: auto 1fr; }
  .open-card .text-link { grid-column: 2; }
  .footer-layout { grid-template-columns: 1fr auto; }
  .footer-layout p { grid-column: 1 / -1; grid-row: 2; }
}

@media (max-width: 560px) {
  .shell { width: calc(100% - 28px); }
  .nav-shell { height: 68px; }
  .site-nav { top: 68px; }
  .hero { padding-top: 122px; }
  .hero h1 { font-size: 39px; line-height: 1.13; }
  .hero-lead { font-size: 15px; line-height: 1.75; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 18px; }
  .hero-actions .button { width: 100%; }
  .hero-actions .text-link { justify-content: center; }
  .hero-points { flex-direction: column; gap: 10px; }
  .product-stage { margin-top: 44px; padding: 18px 0 36px; }
  .window-bar { grid-template-columns: 1fr 1fr; }
  .window-title { display: none; }
  .window-body { min-height: 330px; }
  .mock-sidebar { width: 44px; }
  .mock-sidebar i { display: none; }
  .mock-content { padding: 14px; }
  .metric-row { grid-template-columns: 1fr; }
  .metric-row article:nth-child(n+2) { display: none; }
  .chart-area { height: 120px; }
  .mini-row { grid-template-columns: 1fr; }
  .assignment-card { display: none; }
  .floating-card { min-width: 148px; }
  .floating-device { top: -3px; right: -6px; }
  .floating-audio { bottom: 4px; left: -6px; }
  .value-strip { grid-template-columns: 1fr; }
  .value-strip div { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.1); padding-left: 4px !important; }
  .value-strip div:last-child { border-bottom: 0; }
  .section-heading h2, .library-copy h2, .business-panel h2, .cta-content h2 { font-size: 34px; }
  .feature-card { min-height: 300px; padding: 28px; }
  .library-layout { gap: 20px; }
  .library-visual { min-height: 420px; transform: scale(0.9); }
  .library-node { width: 154px; }
  .node-public { left: -30px; }
  .node-org-a { right: -30px; }
  .node-org-b { right: -25px; }
  .workflow-grid { grid-template-columns: 1fr; }
  .business-points div { align-items: flex-start; flex-direction: column; gap: 6px; }
  .open-section { padding-bottom: 80px; }
  .open-card { grid-template-columns: 1fr; padding: 28px; }
  .open-card .text-link { grid-column: auto; }
  .cta-actions { align-items: stretch; flex-direction: column; }
  .site-footer { text-align: center; }
  .footer-layout { display: flex; flex-direction: column; gap: 18px; }
  .footer-links { justify-content: center; }
  .footer-layout > small { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
}