:root {
  color-scheme: light;
  --ink: #0f172a;
  --muted: #526158;
  --surface: #ffffff;
  --page: #f2f6f2;
  --line: #d9e2da;
  --green: #159b10;
  --green-dark: #0d7610;
  --green-soft: #e6f7e3;
  --blue-soft: #eaf2ff;
  --note: #fff1d7;
  --note-line: #efcd8d;
  --shadow: 0 18px 42px rgba(28, 48, 35, 0.10);
  --radius: 18px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

img { display: block; max-width: 100%; }

a { color: inherit; }

.shell {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(242, 246, 242, 0.94);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(12px);
}

.header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand { flex: 0 0 auto; }

.brand img {
  width: 178px;
  height: 59px;
  object-fit: contain;
}

nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 22px;
  font-size: 0.94rem;
}

nav a,
footer a {
  text-decoration: none;
}

nav a:hover,
footer a:hover,
.text-link:hover { color: var(--green-dark); }

main { padding-block: 30px 72px; }

.hero-strip {
  height: 430px;
  display: grid;
  grid-template-columns: 0.82fr 1.45fr 1.05fr;
  overflow: hidden;
  border-radius: var(--radius);
  background: #dfe8df;
  box-shadow: var(--shadow);
}

.hero-strip img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-right: 4px solid var(--page);
}

.hero-strip img:last-child { border-right: 0; }
.hero-standby { object-position: 54% 58%; }
.hero-dashboard { object-position: 50% 8%; }
.hero-booking { object-position: 48% 50%; }

.hero-copy { padding: 38px 0 24px; }

.eyebrow {
  margin: 0 0 6px;
  color: var(--green-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p { overflow-wrap: break-word; }

h1 {
  max-width: 940px;
  margin: 0;
  font-size: clamp(2.05rem, 4.5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.lead {
  max-width: 820px;
  margin: 20px 0 0;
  color: #34443a;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-weight: 750;
  text-decoration: none;
  transition: transform 150ms ease, box-shadow 150ms ease, background 150ms ease;
}

.button:hover { transform: translateY(-1px); }

.button.primary {
  color: #fff;
  background: var(--green);
  border-color: var(--green);
  box-shadow: 0 8px 18px rgba(21, 155, 16, 0.22);
}

.button.primary:hover { background: var(--green-dark); }
.button.secondary { background: var(--surface); }

.notice {
  margin: 0 0 24px;
  padding: 15px 18px;
  color: #18436e;
  background: var(--blue-soft);
  border: 1px solid #bfd3ef;
  border-radius: 14px;
  box-shadow: 0 8px 22px rgba(56, 90, 126, 0.07);
}

.card {
  margin-top: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.tech { overflow: hidden; }

.tech summary {
  padding: 18px 20px;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 800;
  list-style-position: inside;
}

.tech details[open] summary { border-bottom: 1px solid var(--line); }

.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  padding: 26px;
}

.tech-grid h2 {
  margin: 0;
  font-size: 1.1rem;
}

.tech-grid p { margin: 8px 0 0; color: var(--muted); }

.tech-grid pre {
  max-width: 100%;
  margin: 16px 0 0;
  padding: 16px;
  overflow-x: auto;
  color: #e5edf8;
  background: #0f1a2b;
  border-radius: 12px;
  font-size: 0.78rem;
  line-height: 1.55;
}

.tech-grid .backup-warning {
  grid-column: 1 / -1;
  margin: 0;
  padding: 15px 18px;
  color: #6c4100;
  background: var(--note);
  border: 1px solid var(--note-line);
  border-radius: 12px;
}

.text-link {
  display: inline-block;
  margin-top: 12px;
  color: var(--green-dark);
  font-weight: 750;
}

.showcase { padding: 28px 16px 16px; }

.section-heading { padding: 0 0 10px; }

.section-heading h2,
.architecture h2 {
  margin: 0;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.feature-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 18px;
  align-items: stretch;
  padding-block: 16px;
}

.feature-row.reverse { grid-template-columns: 220px minmax(0, 1fr); }
.feature-row.reverse .shot-frame { order: 2; }
.feature-row.reverse .feature-note { order: 1; }

.shot-frame {
  overflow: hidden;
  background: #eef3ee;
  border: 1px solid var(--line);
  border-radius: 15px;
}

.shot-frame img {
  width: 100%;
  height: auto;
}

.feature-note {
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 22px;
  background: var(--note);
  border: 1px solid var(--note-line);
  border-radius: 15px;
}

.feature-number {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 14px;
  padding: 4px 9px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.12);
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 850;
}

.feature-note h3 {
  margin: 0;
  font-size: 1.2rem;
  line-height: 1.2;
}

.feature-note p { margin: 10px 0 0; color: #4f4432; }

.architecture {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 36px;
  padding: 30px;
}

.architecture ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 26px;
  margin: 0;
  padding-left: 20px;
}

.architecture li::marker { color: var(--green); }

footer {
  color: var(--muted);
  background: #fff;
  border-top: 1px solid var(--line);
  font-size: 0.88rem;
}

.footer-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-inner span:last-child { display: flex; gap: 20px; }

@media (max-width: 820px) {
  .header-inner { align-items: flex-start; padding-block: 8px 12px; }
  nav { flex-wrap: wrap; gap: 8px 14px; padding-top: 8px; }
  .hero-strip { height: 330px; grid-template-columns: 0.8fr 1.1fr 0.9fr; }
  .tech-grid,
  .architecture { grid-template-columns: 1fr; }
  .tech-grid .backup-warning { grid-column: auto; }
  .feature-row,
  .feature-row.reverse { grid-template-columns: 1fr; }
  .feature-row.reverse .shot-frame,
  .feature-row.reverse .feature-note { order: initial; }
  .feature-note { min-height: auto; }
}

@media (max-width: 560px) {
  .shell { width: min(100% - 24px, 1180px); }
  .site-header { position: static; }
  .header-inner { display: block; }
  .brand img { width: 152px; height: 51px; }
  nav { justify-content: flex-start; font-size: 0.87rem; }
  main { padding-top: 14px; }
  .hero-strip {
    height: 460px;
    grid-template-columns: 0.9fr 1.1fr;
    grid-template-rows: 1fr 1fr;
  }
  .hero-strip img { border-right: 3px solid var(--page); }
  .hero-standby { grid-row: 1 / 3; }
  .hero-dashboard { border-bottom: 3px solid var(--page); }
  .hero-booking { border-right: 0; }
  .hero-copy { padding-top: 28px; }
  .showcase { padding-inline: 10px; }
  .architecture { padding: 22px; }
  .architecture ul { grid-template-columns: 1fr; }
  .footer-inner { align-items: flex-start; flex-direction: column; padding-block: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}