:root {
  --green: #107c64;
  --green-600: #0d6a55;
  --green-50: #e9f5f1;
  --night: #09251f;
  --night-2: #0f352c;
  --red: #ff3b30;
  --ink: #142520;
  --muted: #5b6b66;
  --line: #e2e9e6;
  --bg: #ffffff;
  --soft: #f4f7f6;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(9, 37, 31, 0.06), 0 8px 24px rgba(9, 37, 31, 0.08);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green); }
h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -0.02em; }
.wrap { width: min(1180px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(780px, 100% - 32px); }
.center { text-align: center; }
.small { font-size: 14px; }
.muted { color: var(--muted); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: 10px; padding: 11px 20px; font-weight: 600; font-size: 15px;
  text-decoration: none; border: 1px solid transparent; cursor: pointer; font-family: inherit;
  transition: background 0.15s, transform 0.15s, box-shadow 0.15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 4px 14px rgba(16, 124, 100, 0.3); }
.btn-primary:hover { background: var(--green-600); }
.btn-ghost { color: #fff; border-color: rgba(255, 255, 255, 0.35); background: rgba(255, 255, 255, 0.06); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.14); }
.btn-ghost-dark { color: var(--green); border-color: var(--green); background: #fff; }
.btn-lg { padding: 14px 26px; font-size: 16px; }
.btn-sm { padding: 8px 14px; font-size: 14px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: wait; }

/* Top bar */
.topbar {
  position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(10px); border-bottom: 1px solid var(--line);
}
.topbar-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand img { width: 168px; }
.nav { display: flex; gap: 22px; margin-left: 12px; }
.nav a, .link-muted { color: var(--ink); text-decoration: none; font-weight: 500; font-size: 15px; }
.nav a:hover, .link-muted:hover { color: var(--green); }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 16px; }

/* Hero */
.hero {
  background: radial-gradient(1200px 500px at 85% -10%, rgba(16, 124, 100, 0.55), transparent 60%), var(--night);
  color: #fff; padding: 64px 0 80px; overflow: hidden;
}
.hero-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.14em; font-size: 13px; font-weight: 600; color: #7fe0c4; margin: 0 0 14px; }
.hero h1 { font-size: clamp(36px, 5vw, 58px); font-weight: 800; }
.accent { color: #7fe0c4; }
.lead { font-size: 19px; color: rgba(255, 255, 255, 0.82); margin: 20px 0 28px; max-width: 34em; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-notes { list-style: none; padding: 0; margin: 22px 0 0; display: flex; flex-wrap: wrap; gap: 8px 20px; font-size: 14px; color: rgba(255, 255, 255, 0.7); }
.hero-notes li::before { content: '✓ '; color: #7fe0c4; font-weight: 700; }
.hero-visual { position: relative; }
.browser { margin: 0; border-radius: 12px; overflow: hidden; background: #fff; box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45); transform: perspective(1600px) rotateY(-6deg); }
.browser-bar { display: flex; gap: 6px; padding: 9px 12px; background: #e9eeec; }
.browser-bar i { width: 10px; height: 10px; border-radius: 50%; background: #c9d3cf; }
.phone {
  position: absolute; width: 27%; right: -2%; bottom: -12%; margin: 0;
  border: 6px solid #0b0f0e; border-radius: 26px; overflow: hidden; box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5); background: #000;
}

/* Facts */
.facts { border-bottom: 1px solid var(--line); background: #fff; }
.facts-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 26px 0; }
.facts-grid div { display: flex; flex-direction: column; }
.facts-grid strong { font-size: 18px; }
.facts-grid span { color: var(--muted); font-size: 14px; }

/* Sections */
.section { padding: 84px 0; }
.section-soft { background: var(--soft); }
.section-dark { background: var(--night); color: #fff; }
.section-title { font-size: clamp(28px, 3.4vw, 40px); font-weight: 800; margin-bottom: 14px; }
.section-title.light { color: #fff; }
.section-sub { color: var(--muted); font-size: 18px; margin: 0 0 32px; }
.muted-light { color: rgba(255, 255, 255, 0.75); font-size: 17px; }
.mini-title { font-size: 18px; margin: 48px 0 14px; }

.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 28px; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); color: var(--ink); }
.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { margin: 0; color: var(--muted); }

.video-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 48px; align-items: center; }
.video { width: 100%; border-radius: 12px; box-shadow: 0 30px 60px rgba(0, 0, 0, 0.45); background: #000; aspect-ratio: 16 / 9; }

/* Tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.tabs button {
  border: 1px solid var(--line); background: #fff; color: var(--ink); padding: 9px 16px; border-radius: 999px;
  font: 500 15px Inter, system-ui, sans-serif; cursor: pointer;
}
.tabs button[aria-selected='true'] { background: var(--green); border-color: var(--green); color: #fff; }
.tab-panel { display: grid; grid-template-columns: 0.85fr 1.4fr; gap: 40px; align-items: center; }
.tab-panel[hidden] { display: none; }
.feature-copy h3 { font-size: 24px; margin-bottom: 14px; }
.shot { border-radius: 12px; border: 1px solid var(--line); box-shadow: var(--shadow); }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checks li { padding-left: 28px; position: relative; }
.checks li::before {
  content: ''; position: absolute; left: 0; top: 4px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--green-50) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%23107c64' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 14px no-repeat;
}
.checks.light li { color: rgba(255, 255, 255, 0.88); }
.checks.light li::before { background-color: rgba(127, 224, 196, 0.18); }
.chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { background: var(--soft); border: 1px solid var(--line); border-radius: 999px; padding: 7px 14px; font-size: 14px; }

.kinds { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; color: var(--muted); }
.kinds strong { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 6px 12px; color: var(--ink); font-weight: 600; }

/* Pricing calculator */
.calc { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 32px; align-items: start; }
.calc-inputs { display: grid; gap: 18px; }
.rooms-input { display: flex; gap: 12px; align-items: center; }
.rooms-input input[type='range'] { flex: 1; accent-color: var(--green); }
.rooms-input input[type='number'] { width: 90px; }
.plans { display: grid; gap: 12px; }
.plan { border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.plan.best { border-color: var(--green); background: var(--green-50); }
.plan h4 { margin: 0 0 4px; font-size: 17px; }
.plan small { color: var(--muted); }
.plan .price { text-align: right; white-space: nowrap; }
.plan .price strong { font-size: 22px; display: block; }
.plan .price small { display: block; }
.badge { display: inline-block; background: var(--green); color: #fff; font-size: 12px; font-weight: 600; border-radius: 999px; padding: 2px 8px; margin-left: 6px; vertical-align: middle; }
.fineprint { color: var(--muted); font-size: 13px; margin-top: 14px; }
.section-dark .fineprint { color: rgba(255, 255, 255, 0.6); }
.section-dark .form .fineprint { color: var(--muted); }

/* Forms */
.field { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 500; color: var(--ink); }
.field input, .field select, .field textarea {
  font: 15px Inter, system-ui, sans-serif; padding: 10px 12px; border: 1px solid #cbd6d2; border-radius: 9px; background: #fff; color: var(--ink); width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid rgba(16, 124, 100, 0.35); border-color: var(--green); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 18px; }
.span-2 { grid-column: span 2; }
.demo-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: start; }
.demo-copy .checks { margin: 22px 0; }
.form { position: relative; padding: 28px; }
.form-title { font-size: 22px; margin-bottom: 18px; }
.form-error { background: #fdecea; color: #a1281d; border-radius: 9px; padding: 10px 12px; font-size: 14px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-busy, .form-done {
  position: absolute; inset: 0; background: rgba(255, 255, 255, 0.97); border-radius: var(--radius);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; text-align: center; padding: 28px;
}
.form-busy[hidden], .form-done[hidden] { display: none; }
.form-busy span { color: var(--muted); max-width: 26em; }
.spinner { width: 42px; height: 42px; border: 4px solid var(--green-50); border-top-color: var(--green); border-radius: 50%; animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
#toggle-contact { color: #7fe0c4; }

/* FAQ */
details { border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { font-weight: 600; font-size: 17px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; color: var(--green); font-size: 22px; line-height: 1; }
details[open] summary::after { content: '–'; }
details p { color: var(--muted); margin: 12px 0 0; }

.cta-final { background: var(--green-50); }
.cta-final .btn { margin: 6px; }

.footer { background: var(--night); color: rgba(255, 255, 255, 0.7); padding: 36px 0; font-size: 14px; }
.footer-inner { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.footer a { color: #7fe0c4; }

.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 30; width: 56px; height: 56px; border-radius: 50%;
  background: #25d366; color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
.wa-float[hidden] { display: none; }

@media (max-width: 960px) {
  .nav { display: none; }
  .hero { padding: 40px 0 64px; }
  .hero-grid, .video-grid, .tab-panel, .calc, .demo-grid { grid-template-columns: 1fr; }
  .hero-visual { margin-top: 12px; }
  .browser { transform: none; }
  .phone { width: 30%; bottom: -10%; right: 2%; }
  .cards-3 { grid-template-columns: 1fr; }
  .facts-grid { grid-template-columns: 1fr 1fr; }
  .section { padding: 60px 0; }
}
@media (max-width: 560px) {
  .topbar-actions .link-muted { display: none; }
  .brand img { width: 140px; }
  .grid-2 { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .facts-grid { grid-template-columns: 1fr; gap: 12px; }
  .plan { flex-direction: column; align-items: flex-start; }
  .plan .price { text-align: left; }
  .form { padding: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .spinner { animation-duration: 3s; }
}