:root {
  --ink: #0f1112;
  --ink-2: #35383c;
  --ink-3: #000;
  --tint: #f0f0f1;
  --text: #1c1e21;
  --muted: #62666b;
  --line: #e2e3e5;
  --white: #fff;
  --band: #f6f6f7;
  --radius: 10px;
  --font: "Montserrat", "Segoe UI", sans-serif;
  --max: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { margin: 0; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, textarea { font: inherit; color: inherit; }
.skip {
  position: absolute;
  left: -999px;
}
.skip:focus {
  left: 12px;
  top: 12px;
  background: var(--white);
  padding: 8px 12px;
  z-index: 80;
}

.wrap {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}
section, .webpanel, .feat-wrap, .feat, .tech, .contact, .ceo {
  scroll-margin-top: 88px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  box-shadow: 0 1px 0 var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 76px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0.06em;
  font-size: 17px;
  color: var(--ink);
  flex: 0 0 auto;
}
.logo img { width: 42px; height: 42px; }
.logo-lock {
  display: grid;
  line-height: 1;
}
.logo-lock b {
  font-weight: 800;
  font-size: 17px;
  letter-spacing: 0.06em;
}
.logo-lock i {
  margin-top: 4px;
  font-style: normal;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.295em;
  color: var(--muted);
}
.nav {
  display: flex;
  gap: 18px;
  margin-left: auto;
  font-size: 15px;
  font-weight: 500;
}
.nav a { text-decoration: none; color: var(--text); }
.nav a:hover { color: var(--ink); }
.header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.nav a { text-decoration: none; color: var(--text); }
.nav a:hover { color: var(--ink); }
.lang {
  display: flex;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.lang button {
  border: 0;
  background: transparent;
  padding: 7px 11px;
  cursor: pointer;
  color: var(--muted);
}
.lang button.is-on {
  background: var(--ink);
  color: var(--white);
  font-weight: 700;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: var(--radius);
  font-weight: 700;
  letter-spacing: 0.04em;
  border: 0;
  cursor: pointer;
}
.btn-demo {
  background: var(--ink);
  color: var(--white);
  padding: 12px 22px;
  font-size: 13px;
}
.btn-white {
  background: var(--white);
  color: var(--ink);
  padding: 16px 36px;
  font-size: 15px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}
.btn-blue {
  background: var(--ink);
  color: var(--white);
  padding: 12px 26px;
  font-size: 13px;
}
.btn-line {
  background: transparent;
  color: var(--ink);
  padding: 10px 24px;
  font-size: 13px;
  border: 1px solid var(--ink);
}
.feat-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
a.fn {
  text-decoration: none;
  color: inherit;
}
a.fn:hover {
  border-color: var(--ink);
}
.burger {
  display: none;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.burger span,
.burger span::before,
.burger span::after {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  position: relative;
}
.burger span::before,
.burger span::after {
  content: "";
  position: absolute;
  left: 0;
}
.burger span::before { top: -7px; }
.burger span::after { top: 7px; }

.hero {
  position: relative;
  display: block;
  text-align: center;
  color: var(--white);
  background:
    linear-gradient(180deg, rgba(10,10,12,0.60), rgba(10,10,12,0.78)),
    url("assets/hero-mono.jpg") center/cover no-repeat;
  overflow: visible;
  padding: 72px 0 0;
}
.hero-mark {
  position: absolute;
  left: -4vw;
  bottom: -8vh;
  font-size: min(48vw, 520px);
  font-weight: 800;
  color: rgba(255,255,255,0.09);
  line-height: 0.8;
  pointer-events: none;
  user-select: none;
}
.hero .wrap { position: relative; z-index: 3; }
.hero h1 {
  position: relative;
  margin: 0 auto 12px;
  font-size: clamp(34px, 5.2vw, 68px);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.08;
  text-transform: uppercase;
  max-width: 14ch;
}
.hero-tag {
  position: relative;
  margin: 0 auto 24px;
  font-size: clamp(16px, 2vw, 22px);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.95);
}
.hero-shot {
  width: 100%;
  margin: 40px auto 0;
  transform: translateY(52px);
  text-align: left;
}
.hero-shot .device img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  object-position: center;
  background: #111;
}

.shot {
  position: relative;
  overflow: hidden;
  background: #f1f1f2;
}
.shot img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.intro {
  padding: 100px 0 72px;
  text-align: center;
}
.intro h2,
.sec h2,
.why h2,
.tech h2 {
  margin: 0 0 16px;
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
}
.rule {
  width: 88px;
  height: 3px;
  background: var(--ink);
  margin: 0 auto 22px;
  border: 0;
}
.intro p,
.lead {
  margin: 0 auto;
  max-width: 72ch;
  color: var(--muted);
  font-size: 17px;
}
.intro .kicker {
  margin: 0 auto 10px;
  color: var(--ink);
  font-size: 18px;
  font-weight: 700;
}
.intro .ready {
  margin-top: 16px;
  color: var(--ink-2);
  font-weight: 700;
}

.why {
  padding: 24px 0 72px;
  text-align: center;
}
.why h2 {
  text-transform: uppercase;
  letter-spacing: 0.02em;
}
.video-lead {
  margin: 0 auto 22px;
  max-width: 52ch;
  color: var(--muted);
  font-size: 16px;
}
.video-frame {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  background: #111;
  box-shadow: 0 18px 44px rgba(0,0,0,0.16);
  aspect-ratio: 16 / 9;
}
.video-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: left center;
  opacity: 0.55;
}
.video-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 20px 24px;
  text-align: center;
  background: linear-gradient(180deg, rgba(0,0,0,0.25), rgba(0,0,0,0.60));
  color: var(--white);
}
.play {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(0,0,0,0.22);
  position: relative;
}
.play::after {
  content: "";
  position: absolute;
  left: 27px;
  top: 22px;
  border-style: solid;
  border-width: 12px 0 12px 20px;
  border-color: transparent transparent transparent var(--ink);
}
.video-overlay b {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.35;
  max-width: 100%;
  text-wrap: balance;
}
.why-label {
  margin: 28px 0 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.why-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.why-pills li {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  background: var(--band);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 13px;
}
.why-pills a {
  color: inherit;
  text-decoration: none;
}
.why-pills li:has(a):hover {
  border-color: var(--ink);
  color: var(--ink);
}

.byline { margin-top: 16px; }
.byline a { color: var(--ink); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

.webpanel { padding: 8px 0 72px; }
.ai-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 36px;
  align-items: center;
  margin: 28px 0 40px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--band);
  scroll-margin-top: 88px;
}
.ai-split > * { min-width: 0; }
.ai-split .frame,
.ai-split .device {
  min-width: 0;
  width: 100%;
}
.ai-split h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 22px;
}
.ai-split > div > p {
  margin: 0 0 14px;
  color: var(--muted);
}
.ai-label {
  margin: 18px 0 0 !important;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.ai-split .chips { margin-top: 10px; }
.ai-split .chip {
  border-radius: var(--radius);
  padding: 8px 16px;
}
.ai-split h4 {
  margin: 28px 0 8px;
  font-size: 16px;
  color: var(--ink);
}
.ai-split .device img {
  width: 100%;
  display: block;
  background: #f1f1f2;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}
.chip {
  background: var(--white);
  border: 1px solid var(--line);
  color: var(--ink-2);
  padding: 6px 10px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
}
.fn-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 8px;
}
.fn {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: var(--white);
}
.fn b { display: block; margin-bottom: 6px; font-size: 14px; }
.fn p { margin: 0; font-size: 13px; color: var(--muted); line-height: 1.45; }

.panel-tour {
  display: grid;
  grid-template-columns: minmax(220px, 280px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  margin: 8px 0 40px;
  scroll-margin-top: 88px;
}
.tour-rail {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  padding: 4px 10px 8px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--ink) var(--band);
}
.tour-rail::-webkit-scrollbar { width: 8px; }
.tour-rail::-webkit-scrollbar-track {
  background: var(--band);
  border-radius: var(--radius);
}
.tour-rail::-webkit-scrollbar-thumb {
  background: var(--ink);
  border-radius: var(--radius);
}
.tour-line {
  list-style: none;
  margin: 0;
  padding: 4px 0;
}
.tour-line li {
  position: relative;
  padding-left: 22px;
}
.tour-line li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 22px;
  bottom: -6px;
  width: 2px;
  background: var(--line);
}
.tour-line li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--line);
  z-index: 1;
}
.tour-line li:has(.is-on)::before {
  background: var(--ink);
  border-color: var(--ink);
}
.tour-line button {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 8px 10px 10px;
  border-radius: var(--radius);
  cursor: pointer;
}
.tour-line button:hover { background: var(--band); }
.tour-line button.is-on { background: var(--tint); }
.tour-line button b {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}
.tour-line button.is-on b { color: var(--ink); }
.tour-line button span {
  display: block;
  margin-top: 3px;
  font-size: 12px;
  line-height: 1.35;
  color: var(--muted);
  font-weight: 500;
}
.tour-shots {
  display: flex;
  flex-direction: column;
  gap: 32px;
  min-width: 0;
}
.tour-shots .frame { scroll-margin-top: 96px; }
.tour-shots .device img {
  width: 100%;
  height: auto;
  display: block;
  background: #111;
}
.frame {
  margin: 0;
}
.frame .device { background: #111; }
.frame img {
  width: 100%;
  display: block;
  background: #f1f1f2;
}
.frame figcaption {
  margin: 10px 2px 0;
  font-size: 14px;
  color: var(--muted);
  line-height: 1.45;
}

.feat-wrap { background: var(--band); padding: 72px 0; }
.feat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 36px 0;
}
.feat h3 {
  margin: 0 0 12px;
  font-size: 28px;
  color: var(--ink);
  font-weight: 800;
}
.feat p { color: var(--muted); margin: 0 0 16px; }
.feat ul {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}
.feat li {
  padding: 7px 0 7px 18px;
  position: relative;
  color: var(--text);
}
.feat li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ink);
  position: absolute;
  left: 0;
  top: 14px;
}

.device {
  background: #111;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 16px 40px rgba(0,0,0,0.14);
}
.device-bar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  background: #1b1f24;
}
.device-bar i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #555;
}
.device-bar i:first-child { background: #555; }
.device .shot { min-height: 280px; aspect-ratio: 16/10; background: #f1f1f2; }
.phones {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  width: min(100%, 400px);
  justify-self: center;
}
.phone {
  background: #111;
  border-radius: var(--radius);
  padding: 12px 10px 14px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.14);
}
.phone .notch {
  width: 72px;
  height: 7px;
  background: #2a2f36;
  border-radius: var(--radius);
  margin: 0 auto 10px;
}
.phone .shot {
  min-height: 0;
  aspect-ratio: 9/17;
  border-radius: var(--radius);
}
.phone img {
  width: 100%;
  display: block;
  border-radius: var(--radius);
  background: #f1f1f2;
}
.app-gallery {
  padding: 12px 0 48px;
}
.app-kicker {
  margin: 28px 0 16px;
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.phones-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px 14px;
}
.phone-card { margin: 0; }
.phone-card figcaption {
  margin: 10px 2px 0;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.4;
}

.tech {
  padding: 84px 0;
  background:
    radial-gradient(900px 420px at 88% 0%, var(--tint), transparent 62%),
    var(--white);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.tech-inner {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  align-items: center;
}
.tech-copy { text-align: left; }
.tech-kicker {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.tech h2 { margin: 0 0 16px; }
.tech .rule { margin: 0 0 20px; }
.tech .lead { margin: 0; max-width: 54ch; }
.stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 24px 0 0;
  padding: 0;
}
.stack li {
  list-style: none;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink-2);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.tech-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 20px;
  box-shadow: 0 14px 30px rgba(0,0,0,0.06);
}
.tech-ico {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 14px;
  border-radius: var(--radius);
  background: var(--tint);
  color: var(--ink);
}
.tech-ico svg { width: 24px; height: 24px; }
.tech-card b {
  display: block;
  margin-bottom: 6px;
  font-size: 17px;
  color: var(--ink-3);
}
.tech-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.ceo {
  background:
    radial-gradient(1200px 480px at 8% -10%, rgba(255,255,255,0.07), transparent 55%),
    #111214;
  color: var(--white);
  padding: 88px 0;
}
.ceo-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 40px 48px;
  align-items: start;
  max-width: 920px;
  margin: 0 auto;
}
.ceo-avatar {
  width: 96px;
  height: 96px;
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.18), 0 18px 40px rgba(0,0,0,0.28);
}
.ceo-avatar img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: grayscale(1);
  display: block;
}
.ceo-kicker {
  margin: 6px 0 18px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
}
.ceo blockquote {
  margin: 0;
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 600;
  line-height: 1.38;
  letter-spacing: -0.02em;
}
.ceo-who {
  margin: 28px 0 0;
  padding-top: 22px;
  border-top: 1px solid rgba(255,255,255,0.14);
}
.ceo-who b {
  display: block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.72);
}

.contact {
  padding: 80px 0;
}
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 40px;
  margin-top: 32px;
}
.aside p { margin: 0 0 12px; color: var(--muted); }
.aside a { color: var(--ink); font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
form {
  display: grid;
  gap: 12px;
  background: var(--band);
  padding: 28px;
  border-radius: var(--radius);
}
label { display: grid; gap: 6px; font-size: 13px; font-weight: 600; }
input, textarea {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  background: var(--white);
}
textarea { min-height: 120px; resize: vertical; }
.form-ok, .form-err { display: none; font-size: 14px; }
.form-ok { color: #2f7d4a; }
.form-err { color: #b42318; }

.footer {
  background: #0f1112;
  color: rgba(255,255,255,0.8);
  padding: 36px 0;
  font-size: 14px;
}
.foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer a { color: var(--white); }

@media (max-width: 980px) {
  .nav, .header .btn-demo { display: none; }
  .header-tools { margin-left: auto; }
  .header.is-open .nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 16px 24px 24px;
    box-shadow: 0 12px 24px rgba(0,0,0,0.08);
    z-index: 40;
  }
  .burger { display: grid; place-items: center; }
  .feat, .contact-grid, .tech-inner, .ai-split, .ceo-inner {
    grid-template-columns: 1fr;
  }
  .tech { padding: 64px 0; }
  .tech-inner { gap: 32px; }
  .phones {
    width: min(100%, 260px);
    margin: 0 auto;
    gap: 10px;
  }
  .phone {
    border-radius: var(--radius);
    padding: 8px 6px 10px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
  }
  .phone .notch {
    width: 40px;
    height: 5px;
    margin-bottom: 6px;
  }
  .phones-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px 10px;
  }
  .fn-grid { grid-template-columns: 1fr 1fr; }
  .panel-tour { grid-template-columns: 1fr; }
  .tour-rail {
    position: sticky;
    top: 76px;
    z-index: 8;
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
    background: var(--white);
    padding: 8px 0 10px;
    border-bottom: 1px solid var(--line);
  }
  .tour-line {
    display: flex;
    gap: 6px;
    padding: 0;
  }
  .tour-line li {
    padding-left: 0;
    flex: 0 0 auto;
  }
  .tour-line li::before,
  .tour-line li::after { display: none; }
  .tour-line button {
    padding: 8px 12px;
    border: 1px solid var(--line);
    white-space: nowrap;
  }
  .tour-line button span { display: none; }
  .intro { padding-top: 88px; }
}

@media (max-width: 720px) {
  .wrap { width: min(var(--max), calc(100% - 28px)); }
  .hero { padding-top: 48px; }
  .hero-shot { transform: translateY(36px); }
  .intro { padding-top: 64px; }
  .fn-grid { grid-template-columns: 1fr; }
  .tech-grid { grid-template-columns: 1fr; gap: 12px; }
  .tech-card { padding: 18px 16px; }
  .tech-ico { width: 38px; height: 38px; margin-bottom: 10px; }
  .logo img { width: 36px; height: 36px; }
  .logo-lock b { font-size: 14px; letter-spacing: 0.04em; }
  .logo-lock i { font-size: 9px; letter-spacing: 0.255em; margin-top: 3px; }
  .play { width: 52px; height: 52px; }
  .play::after { left: 20px; top: 16px; border-width: 10px 0 10px 16px; }
  .video-overlay { gap: 10px; padding: 16px; }
  .video-overlay b { font-size: 12px; letter-spacing: 0.02em; }
}