:root {
  --ink: #12161a;
  --ink-2: #2a3138;
  --mute: #66707a;
  --line: #e3e1db;
  --bg: #f7f5f0;
  --card: #ffffff;
  --dark: #15191d;
  --dark-2: #1f252b;
  --accent: #ff6a2b;
  --accent-ink: #ffffff;
  --eco: #0f8a6a;
  --eco-soft: #e2f3ec;
  --radius: 18px;
  --shadow: 0 1px 2px rgba(18, 22, 26, .06), 0 12px 32px rgba(18, 22, 26, .08);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  font-family: Inter, "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { line-height: 1.12; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(2.3rem, 5.6vw, 4.4rem); font-weight: 800; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.9rem); font-weight: 800; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 22px; }
section { padding: 84px 0; }
.eyebrow {
  display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--eco); margin-bottom: 14px;
}
.lead { font-size: 1.15rem; color: var(--mute); max-width: 720px; }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }
.small { font-size: .82rem; color: var(--mute); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 24px; border-radius: 999px; border: 1.5px solid transparent;
  font: inherit; font-weight: 700; text-decoration: none; cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 8px 24px rgba(255, 106, 43, .32); }
.btn-primary:hover { background: #f25c1c; }
.btn-ghost { border-color: rgba(255, 255, 255, .35); color: #fff; background: transparent; }
.btn-ghost:hover { background: rgba(255, 255, 255, .08); }
.btn-line { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-line:hover { background: var(--ink); color: #fff; }
.btn-sm { padding: 10px 18px; font-size: .92rem; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

/* header */
.top {
  position: sticky; top: 0; z-index: 50; background: rgba(21, 25, 29, .92);
  backdrop-filter: blur(12px); color: #fff; border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.top .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.logo { font-weight: 800; font-size: 1.2rem; letter-spacing: -.02em; text-decoration: none; white-space: nowrap; }
.logo span { color: var(--accent); }
.nav { display: flex; gap: 24px; margin-left: auto; }
.nav a { text-decoration: none; font-size: .93rem; font-weight: 600; color: rgba(255, 255, 255, .78); }
.nav a:hover { color: #fff; }
.menu-btn { display: none; margin-left: auto; background: none; border: 0; color: #fff; font-size: 1.6rem; cursor: pointer; }

/* hero */
.hero { background: radial-gradient(1100px 520px at 78% 30%, #2c353d 0%, var(--dark) 62%); color: #fff; padding: 76px 0 0; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 36px; align-items: center; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero .lead { color: rgba(255, 255, 255, .74); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 26px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; }
.badge {
  font-size: .82rem; font-weight: 600; padding: 7px 13px; border-radius: 999px;
  background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .14);
}
.hero-art { position: relative; min-height: 420px; }
.hero-art svg { width: 100%; height: auto; display: block; }
.fan { transform-origin: 50% 50%; transform-box: fill-box; animation: spin 7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .fan { animation: none; } html { scroll-behavior: auto; } }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255, 255, 255, .1); margin-top: 48px; }
.stat { padding: 26px 18px; border-left: 1px solid rgba(255, 255, 255, .1); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat b { display: block; font-size: clamp(1.5rem, 2.6vw, 2.2rem); font-weight: 800; letter-spacing: -.02em; }
.stat span { font-size: .86rem; color: rgba(255, 255, 255, .64); }

/* quick pick */
.pick { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 36px; }
.pick button {
  text-align: left; background: var(--card); border: 1.5px solid var(--line); border-radius: var(--radius);
  padding: 26px; font: inherit; cursor: pointer; transition: border-color .15s, transform .15s, box-shadow .15s;
}
.pick button:hover { border-color: var(--ink); transform: translateY(-3px); box-shadow: var(--shadow); }
.pick .ico { font-size: 2rem; display: block; margin-bottom: 12px; }
.pick b { display: block; font-size: 1.15rem; margin-bottom: 4px; }
.pick span.t { color: var(--mute); font-size: .94rem; }
.pick .go { display: block; margin-top: 14px; font-weight: 700; color: var(--accent); }

/* teasers */
.dark { background: var(--dark); color: #fff; }
.dark .lead { color: rgba(255, 255, 255, .68); }
.dark .eyebrow { color: #5fd3ae; }
.teasers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255, 255, 255, .1); border-radius: var(--radius); overflow: hidden; margin-top: 40px; }
.teaser { background: var(--dark-2); padding: 32px 28px; }
.teaser .big { font-size: 2.3rem; font-weight: 800; letter-spacing: -.03em; color: #fff; display: block; }
.teaser .big small { font-size: 1rem; font-weight: 600; color: rgba(255, 255, 255, .6); }
.teaser h3 { margin: 8px 0 6px; }
.teaser p { margin: 0; color: rgba(255, 255, 255, .64); font-size: .95rem; }

/* tabs / chips */
.tabs { display: inline-flex; background: #ebe8e1; border-radius: 999px; padding: 5px; gap: 4px; flex-wrap: wrap; }
.tabs button {
  border: 0; background: transparent; font: inherit; font-weight: 700; padding: 10px 20px;
  border-radius: 999px; cursor: pointer; color: var(--ink-2);
}
.tabs button[aria-pressed="true"] { background: var(--ink); color: #fff; }
.tabrow { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: center; margin: 30px 0 12px; }
.seg-note { text-align: center; color: var(--mute); margin-bottom: 28px; min-height: 1.5em; }
.seg-note b { color: var(--eco); }

/* package cards */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(262px, 1fr)); gap: 18px; }
.pk {
  background: var(--card); border: 1.5px solid var(--line); border-radius: var(--radius);
  padding: 22px; display: flex; flex-direction: column; position: relative;
  transition: transform .15s, box-shadow .15s, border-color .15s;
}
.pk:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: #cfccc4; }
.pk .size {
  position: absolute; top: 18px; right: 18px; min-width: 46px; height: 46px; padding: 0 8px; border-radius: 12px;
  background: var(--ink); color: #fff; font-weight: 800; display: grid; place-items: center; font-size: 1.05rem;
}
.pk .art { height: 122px; display: flex; align-items: flex-end; gap: 12px; margin-bottom: 14px; }
.pk .art svg { height: 100%; width: auto; }
.pk h3 { margin: 0 0 2px; font-size: 1.2rem; }
.pk .for { color: var(--mute); font-size: .92rem; margin-bottom: 12px; min-height: 2.9em; }
.pk ul { list-style: none; padding: 0; margin: 0 0 16px; font-size: .9rem; }
.pk li { padding: 5px 0 5px 22px; position: relative; border-top: 1px dashed var(--line); }
.pk li:first-child { border-top: 0; }
.pk li::before { content: "✓"; position: absolute; left: 0; color: var(--eco); font-weight: 800; }
.pk .row { margin-top: auto; display: flex; gap: 8px; }
.pk .row .btn { flex: 1; padding: 11px 10px; font-size: .9rem; }
.pk.special { background: linear-gradient(160deg, #1f252b, #15191d); color: #fff; border-color: transparent; }
.pk.special .for { color: rgba(255, 255, 255, .68); }
.pk.special li { border-color: rgba(255, 255, 255, .14); }
.pk.special .btn-line { border-color: rgba(255, 255, 255, .5); color: #fff; }
.pk.special .size { background: var(--accent); }
.tag { display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; padding: 4px 9px; border-radius: 6px; background: var(--eco-soft); color: var(--eco); margin-bottom: 10px; align-self: flex-start; }
.pk.special .tag { background: rgba(95, 211, 174, .16); color: #7fe3c2; }

/* extras */
.extras { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 40px; }
.extra { background: var(--card); border-radius: 14px; padding: 20px; border: 1.5px solid var(--line); }
.extra b { display: block; margin-bottom: 4px; }
.extra span { font-size: .9rem; color: var(--mute); }
.extra .ico { font-size: 1.5rem; display: block; margin-bottom: 8px; }

/* configurator */
.cfg { background: var(--card); border-radius: 24px; box-shadow: var(--shadow); padding: 34px; max-width: 860px; margin: 36px auto 0; }
.cfg-progress { height: 6px; background: #ebe8e1; border-radius: 99px; overflow: hidden; margin-bottom: 26px; }
.cfg-progress i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .3s; }
.cfg h3 { font-size: 1.5rem; }
.opts { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin: 18px 0; }
.opt {
  border: 1.5px solid var(--line); background: #fff; border-radius: 14px; padding: 16px; font: inherit;
  text-align: left; cursor: pointer; transition: border-color .12s, background .12s;
}
.opt:hover { border-color: var(--ink); }
.opt[aria-pressed="true"] { border-color: var(--accent); background: #fff4ee; }
.opt .ico { font-size: 1.5rem; display: block; margin-bottom: 6px; }
.opt b { display: block; }
.opt span.t { font-size: .85rem; color: var(--mute); }
.field { margin: 18px 0; }
.field label { display: block; font-weight: 700; margin-bottom: 8px; }
.field input[type=number], .field input[type=text], .field input[type=tel], .field input[type=email], .field textarea, .field select {
  width: 100%; padding: 13px 15px; border: 1.5px solid var(--line); border-radius: 12px; font: inherit; background: #fff;
}
.field input[type=range] { width: 100%; accent-color: var(--accent); }
.range-val { font-size: 1.6rem; font-weight: 800; }
.cfg-nav { display: flex; justify-content: space-between; gap: 12px; margin-top: 22px; }
.result { text-align: center; }
.result .name { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; letter-spacing: -.02em; margin: 6px 0; }
.result .facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 24px 0; text-align: left; }
.fact { background: var(--bg); border-radius: 14px; padding: 16px; }
.fact b { display: block; font-size: 1.15rem; }
.fact span { font-size: .84rem; color: var(--mute); }
.price-tease { background: var(--dark); color: #fff; border-radius: 16px; padding: 22px; margin: 18px 0; }
.price-tease b { color: var(--accent); }

/* models compare */
.cmp { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); margin-top: 36px; }
.cmp th, .cmp td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; font-size: .95rem; }
.cmp thead th { background: var(--ink); color: #fff; font-size: 1.05rem; }
.cmp thead th small { display: block; font-weight: 500; color: rgba(255, 255, 255, .64); font-size: .8rem; }
.cmp tbody th { color: var(--mute); font-weight: 600; width: 22%; }
.cmp tr:last-child td, .cmp tr:last-child th { border-bottom: 0; }
.tablewrap { overflow-x: auto; }

/* case studies */
.filters { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin: 30px 0; }
.filters select { padding: 11px 14px; border-radius: 999px; border: 1.5px solid var(--line); font: inherit; font-weight: 600; background: #fff; }
.cs { background: var(--card); border-radius: var(--radius); overflow: hidden; border: 1.5px solid var(--line); display: flex; flex-direction: column; }
.cs .ph { height: 150px; background: linear-gradient(135deg, #2c353d, #15191d); position: relative; display: grid; place-items: center; color: rgba(255, 255, 255, .5); font-size: 3rem; }
.cs .ph .demo { position: absolute; top: 12px; left: 12px; background: #ffd23f; color: #332800; font-size: .7rem; font-weight: 800; letter-spacing: .08em; padding: 4px 8px; border-radius: 6px; }
.cs .body { padding: 20px; }
.cs h3 { font-size: 1.05rem; line-height: 1.3; }
.cs dl { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; margin: 14px 0; font-size: .86rem; }
.cs dt { color: var(--mute); }
.cs dd { margin: 0; font-weight: 700; }
.cs blockquote { margin: 0 0 14px; font-style: italic; color: var(--ink-2); font-size: .92rem; border-left: 3px solid var(--accent); padding-left: 12px; }
.empty { text-align: center; color: var(--mute); grid-column: 1/-1; padding: 30px; }

/* video */
.videos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 36px; }
.vid { border-radius: 16px; overflow: hidden; background: #000; position: relative; aspect-ratio: 16/9; cursor: pointer; border: 0; padding: 0; display: block; width: 100%; }
.vid.big { grid-column: span 2; grid-row: span 2; }
.vid img { width: 100%; height: 100%; object-fit: cover; opacity: .78; transition: opacity .2s, transform .3s; }
.vid:hover img { opacity: .95; transform: scale(1.03); }
.vid .play { position: absolute; inset: 0; display: grid; place-items: center; }
.vid .play i { width: 62px; height: 62px; border-radius: 50%; background: var(--accent); display: grid; place-items: center; color: #fff; font-style: normal; font-size: 1.4rem; padding-left: 4px; box-shadow: 0 8px 26px rgba(0, 0, 0, .4); }
.vid .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 30px 16px 12px; background: linear-gradient(transparent, rgba(0, 0, 0, .85)); color: #fff; font-weight: 700; font-size: .92rem; text-align: left; }
.vid iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.trust { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 30px; }
.trust div { border: 1px solid rgba(255, 255, 255, .14); border-radius: 14px; padding: 18px; }
.trust b { display: block; font-size: 1.5rem; font-weight: 800; }
.trust span { font-size: .86rem; color: rgba(255, 255, 255, .64); }

/* steps */
.steps { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; margin-top: 40px; counter-reset: s; }
.step { background: var(--card); border-radius: 14px; padding: 20px 14px; border: 1.5px solid var(--line); counter-increment: s; }
.step::before { content: counter(s); display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: #fff; font-weight: 800; margin-bottom: 12px; }
.step b { display: block; margin-bottom: 4px; }
.step span { font-size: .84rem; color: var(--mute); }

/* subsidy */
.sub { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 36px; }
.subcard { border-radius: var(--radius); padding: 32px; background: var(--eco); color: #fff; }
.subcard.alt { background: var(--card); color: var(--ink); border: 1.5px solid var(--line); }
.subcard .amt { font-size: clamp(2.4rem, 5vw, 3.6rem); font-weight: 800; letter-spacing: -.03em; display: block; }
.subcard p { margin: 6px 0 0; opacity: .86; }

/* faq */
.faq { max-width: 820px; margin: 36px auto 0; }
.faq h3 { margin: 34px 0 10px; color: var(--eco); font-size: .82rem; letter-spacing: .12em; text-transform: uppercase; }
.faq details { background: var(--card); border: 1.5px solid var(--line); border-radius: 14px; margin-bottom: 8px; }
.faq summary { cursor: pointer; padding: 17px 48px 17px 20px; font-weight: 700; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 1.5rem; font-weight: 400; color: var(--accent); }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 20px 18px; margin: 0; color: var(--ink-2); }

/* about + footer */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.about .box { background: var(--card); border-radius: var(--radius); padding: 30px; border: 1.5px solid var(--line); }
.cta-band { background: var(--accent); color: #fff; text-align: center; padding: 70px 0; }
.cta-band h2 { margin-bottom: 10px; }
.cta-band p { opacity: .92; font-size: 1.1rem; }
.cta-band .btn { background: #fff; color: var(--ink); margin-top: 16px; }
footer { background: var(--dark); color: rgba(255, 255, 255, .6); padding: 44px 0; font-size: .86rem; }
footer a { color: rgba(255, 255, 255, .8); }
footer .cols { display: flex; flex-wrap: wrap; gap: 30px; justify-content: space-between; margin-bottom: 22px; }
.preview-note { background: #ffd23f; color: #332800; text-align: center; font-size: .82rem; font-weight: 600; padding: 7px 12px; }

/* sticky CTA */
.sticky-cta { position: fixed; right: 18px; bottom: 18px; z-index: 40; box-shadow: 0 10px 30px rgba(255, 106, 43, .45); }

/* dialog */
dialog { border: 0; border-radius: 22px; padding: 0; max-width: 760px; width: calc(100% - 28px); box-shadow: 0 30px 80px rgba(0, 0, 0, .4); color: var(--ink); }
dialog::backdrop { background: rgba(10, 12, 14, .66); backdrop-filter: blur(3px); }
.dlg { padding: 30px; position: relative; }
.dlg .x { position: absolute; top: 14px; right: 14px; width: 40px; height: 40px; border-radius: 50%; border: 0; background: #ebe8e1; font-size: 1.2rem; cursor: pointer; }
.dlg h2 { font-size: 1.8rem; padding-right: 44px; }
.keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 18px 0; }
.spec { width: 100%; border-collapse: collapse; font-size: .9rem; }
.spec td { padding: 8px 0; border-bottom: 1px solid var(--line); }
.spec td:first-child { color: var(--mute); width: 46%; }
.dlg details { margin-top: 14px; }
.dlg summary { cursor: pointer; font-weight: 700; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ok-box { background: var(--eco-soft); color: #0a5a45; border-radius: 14px; padding: 18px; margin-top: 14px; }
.sumbox { background: var(--bg); border-radius: 12px; padding: 14px; font-size: .9rem; white-space: pre-wrap; margin: 12px 0; }

@media (max-width: 980px) {
  .hero-grid, .about, .sub { grid-template-columns: 1fr; }
  .hero-art { min-height: 0; max-width: 520px; margin: 0 auto; }
  .teasers, .videos { grid-template-columns: 1fr 1fr; }
  .extras, .trust { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: var(--dark); flex-direction: column; padding: 18px 22px; gap: 16px; }
  .nav.open { display: flex; }
  .menu-btn { display: block; }
  .top .btn { display: none; }
}
@media (max-width: 640px) {
  section { padding: 60px 0; }
  .pick, .teasers, .videos, .stats { grid-template-columns: 1fr 1fr; }
  .pick { grid-template-columns: 1fr; }
  .teasers { grid-template-columns: 1fr; }
  .videos { grid-template-columns: 1fr; }
  .vid.big { grid-column: auto; grid-row: auto; }
  .stat { border-left: 0; padding: 16px 0; }
  .result .facts, .keys, .two { grid-template-columns: 1fr; }
  .cfg { padding: 22px; }
  .cmp th, .cmp td { padding: 11px 12px; font-size: .86rem; }
}