html { scroll-behavior: smooth; scroll-padding-top: 80px; }
.wrap { width: min(1180px, 100%); margin: 0 auto; padding: 0 24px; }
.wrap.narrow { width: min(820px, 100%); }
.icon-btn { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; border: 1px solid var(--line); background: var(--chip); color: var(--text); }
.icon-btn:hover { background: var(--chip-hover); }
.show-sm { display: none; }

/* шапка */
.top { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent); border-bottom: 1px solid color-mix(in srgb, var(--line) 60%, transparent); }
.top-row { display: flex; align-items: center; gap: 28px; height: 68px; }
.top-nav { display: flex; gap: 26px; margin-right: auto; }
.top-nav a { color: var(--muted); text-decoration: none; font-weight: 500; font-size: 14.5px; }
.top-nav a:hover { color: var(--text); }
.top-actions { display: flex; align-items: center; gap: 10px; }

/* первый экран */
.hero { position: relative; overflow: hidden; padding: 72px 0 90px; }
/* слой свечения плавно гаснет к низу первого экрана, а не обрезается ровной линией */
.hero-glow { position: absolute; inset: 0; pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000 55%, transparent 100%); mask-image: linear-gradient(180deg, #000 55%, transparent 100%); }
.hero-glow::before, .hero-glow::after { content: ""; position: absolute; width: 620px; height: 620px; border-radius: 50%; filter: blur(110px); opacity: calc(0.36 * var(--glow-strength) / 0.85); }
.hero-glow::before { background: var(--violet); left: -220px; top: -160px; }
.hero-glow::after { background: var(--cyan); right: -240px; bottom: -260px; }
.glyph-field { position: absolute; inset: 0; font: 12px/2 var(--mono); letter-spacing: 0.7em; white-space: pre; color: var(--violet); opacity: 0.16; overflow: hidden; pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 70% 45%, #000 0%, transparent 70%); mask-image: radial-gradient(ellipse 70% 60% at 70% 45%, #000 0%, transparent 70%); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 70%, transparent); color: var(--muted); font-size: 13.5px; margin: 0 0 24px; }
.eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 12px var(--cyan); }
h1 { font: 700 clamp(34px, 5.2vw, 62px)/1.06 var(--display); letter-spacing: -0.02em; margin: 0 0 22px; }
h2 { font: 600 clamp(26px, 3.4vw, 40px)/1.15 var(--display); letter-spacing: -0.015em; margin: 0 0 14px; }
h3 { font-size: 18px; margin: 0 0 8px; }
.lead { font-size: 18px; color: var(--muted); max-width: 560px; margin: 0 0 30px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-facts { display: flex; flex-wrap: wrap; gap: 10px 26px; list-style: none; padding: 0; margin: 30px 0 0; color: var(--muted); font-size: 14px; }
.hero-facts b { color: var(--text); }

.hero-visual { position: relative; min-height: 470px; }
.mascot { position: absolute; right: 2%; top: -10px; width: min(300px, 62%); height: auto; filter: drop-shadow(0 30px 60px rgba(110, 90, 255, 0.45)); animation: float 6s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-12px) rotate(-2deg); } }
.demo-bubble { position: absolute; max-width: 78%; padding: 12px 16px; border-radius: 18px; font-size: 14.5px; border: 1px solid var(--line); background: var(--surface); box-shadow: var(--shadow); }
.demo-q { left: 0; top: 170px; border-radius: 18px 18px 18px 6px; }
.demo-a { left: 8%; top: 236px; min-height: 48px; width: 78%; border-radius: 18px 18px 6px 18px; color: var(--muted); }
.demo-a b { color: var(--text); }
.typing { display: inline-flex; gap: 4px; padding: 6px 0; }
.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: blink 1.2s infinite; }
.typing i:nth-child(2) { animation-delay: 0.2s; } .typing i:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink { 50% { opacity: 0.25; } }
.demo-composer { position: absolute; left: 0; right: 0; bottom: 0; border-radius: 22px; padding: 14px; border: 1px solid transparent;
  background: linear-gradient(var(--surface), var(--surface)) padding-box, var(--grad) border-box;
  box-shadow: -18px -10px 46px -14px color-mix(in srgb, var(--violet) calc(var(--glow-strength) * 100%), transparent),
              18px 14px 46px -14px color-mix(in srgb, var(--cyan) calc(var(--glow-strength) * 100%), transparent); }
.demo-input { display: block; color: var(--muted); padding: 2px 6px 12px; min-height: 26px; }
.demo-input.typed { color: var(--text); }
.demo-row { display: flex; gap: 8px; align-items: center; }
.demo-chip { height: 32px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--chip); display: grid; place-items: center; font-size: 13px; color: var(--muted); }
.demo-send { width: 34px; height: 34px; border-radius: 50%; margin-left: auto; background: var(--grad); }

/* секции */
.section { padding: 84px 0; position: relative; }
.kicker { font: 600 13px/1 var(--font); letter-spacing: 0.12em; text-transform: uppercase; color: var(--cyan); margin: 0 0 14px; }
.section-lead { color: var(--muted); font-size: 17px; max-width: 720px; margin: 0 0 40px; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; transition: transform 0.2s, border-color 0.2s; }
.feature:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--violet) 50%, var(--line)); }
.feature p { color: var(--muted); margin: 0; }
.feature.big { grid-row: span 2; display: flex; flex-direction: column; justify-content: flex-end; min-height: 300px;
  background: radial-gradient(circle at 80% 10%, color-mix(in srgb, var(--violet) 30%, transparent), transparent 60%), var(--surface); }
.feature.big h3 { font: 600 24px/1.2 var(--display); }
.f-icon { width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center; margin-bottom: 18px; color: #fff; background: var(--grad); }
.feature.big .f-icon { margin-bottom: auto; }

.photo-section { background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--surface) 55%, transparent), transparent); }
.photo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.steps { padding: 0; margin: 26px 0 32px; list-style: none; counter-reset: s; display: grid; gap: 16px; }
.steps li { counter-increment: s; position: relative; padding-left: 52px; color: var(--muted); }
.steps li b { color: var(--text); }
.steps li::before { content: counter(s); position: absolute; left: 0; top: -3px; width: 36px; height: 36px; border-radius: 12px; display: grid; place-items: center; font-weight: 700; background: var(--chip); border: 1px solid var(--line); color: var(--text); }
.photo-demo { display: grid; grid-template-columns: 1fr 48px 1.15fr; align-items: center; gap: 10px; }
.paper { aspect-ratio: 3/4; border-radius: 16px; background: #f3efe4; padding: 26px 20px; display: flex; flex-direction: column; gap: 14px; transform: rotate(-4deg); box-shadow: var(--shadow); }
.paper i { display: block; height: 7px; border-radius: 4px; background: #9c97b8; opacity: 0.6; width: 100%; }
.arrow { height: 3px; background: var(--grad); border-radius: 3px; position: relative; }
.arrow::after { content: ""; position: absolute; right: -2px; top: -6px; border: 7px solid transparent; border-left-color: var(--cyan); }
.note { border-radius: 18px; padding: 20px; background: var(--surface); border: 1px solid var(--line); box-shadow: var(--shadow); font-size: 14px; }
.note b { display: block; font-size: 16px; margin-bottom: 10px; }
.note .h { display: block; font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--cyan); margin-top: 10px; }
.note p { margin: 4px 0 0; color: var(--muted); }

.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 30px; }
.how-step { padding: 26px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: var(--surface); }
.how-step span { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; margin-bottom: 16px; font: 700 17px var(--display); background: var(--grad); color: #fff; }
.how-step p { color: var(--muted); margin: 0; }
.models-band { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.models-band span { padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); font-weight: 500; }

/* тарифы */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; align-items: stretch; }
.plans-loading { padding: 40px; text-align: center; color: var(--muted); }
.plan { position: relative; display: flex; flex-direction: column; padding: 28px 24px 24px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: var(--surface); }
.plan.hl { border: 1px solid transparent; background: linear-gradient(var(--surface), var(--surface)) padding-box, var(--grad) border-box;
  box-shadow: 0 24px 60px -24px rgba(110, 90, 255, 0.6); }
.plan .badge { position: absolute; top: -12px; left: 24px; padding: 4px 12px; border-radius: 999px; background: var(--grad); color: #fff; font-size: 12px; font-weight: 600; }
.plan h3 { font: 600 20px/1.2 var(--display); }
.plan .desc { color: var(--muted); font-size: 14px; margin: 0 0 18px; min-height: 22px; }
.plan .price { font: 700 36px/1 var(--display); margin-bottom: 4px; }
.plan .price small { font: 500 15px var(--font); color: var(--muted); }
.plan .per { color: var(--muted); font-size: 13px; margin-bottom: 20px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 24px; display: grid; gap: 9px; font-size: 14.5px; }
.plan li { padding-left: 26px; position: relative; }
.plan li::before { content: ""; position: absolute; left: 0; top: 5px; width: 14px; height: 9px; border-left: 2px solid var(--cyan); border-bottom: 2px solid var(--cyan); transform: rotate(-45deg); }
.plan .btn { margin-top: auto; }
.packs { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; align-items: center; color: var(--muted); }
.pack { display: inline-flex; gap: 10px; align-items: center; padding: 10px 16px; border-radius: 14px; border: 1px solid var(--line); background: var(--surface); color: var(--text); }
.pack b { font-family: var(--display); }

.ref-card { display: flex; gap: 30px; align-items: center; justify-content: space-between; padding: 40px; border-radius: 28px;
  background: radial-gradient(circle at 0% 0%, color-mix(in srgb, var(--violet) 35%, transparent), transparent 55%),
              radial-gradient(circle at 100% 100%, color-mix(in srgb, var(--cyan) 30%, transparent), transparent 55%), var(--surface);
  border: 1px solid var(--line); }
.ref-card p { color: var(--muted); margin: 0; max-width: 620px; }

.faq { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 40px 20px 0; font-weight: 600; font-size: 17px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 16px; font-size: 24px; color: var(--muted); transition: transform 0.2s; }
.faq[open] summary::after { transform: rotate(45deg); }
.faq p { margin: 0 0 20px; color: var(--muted); }

.final { text-align: center; }
.final-inner { display: flex; flex-direction: column; align-items: center; }
.final p { color: var(--muted); margin: 0 0 26px; }

.footer { border-top: 1px solid var(--line); padding: 30px 0 calc(30px + env(safe-area-inset-bottom)); }
.footer-row { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; }
.footer nav { display: flex; gap: 20px; flex-wrap: wrap; margin-right: auto; }
.footer nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.footer nav a:hover { color: var(--text); }

/* адаптив */
@media (max-width: 980px) {
  .hero-grid, .photo-grid { grid-template-columns: 1fr; }
  .hero-visual { min-height: 420px; max-width: 520px; width: 100%; margin: 0 auto; }
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature.big { grid-column: span 2; grid-row: auto; min-height: 220px; }
  .how { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .top-nav { display: none; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; gap: 0; padding: 8px 16px 16px; background: var(--bg); border-bottom: 1px solid var(--line); }
  .top-nav.open { display: flex; }
  .top-nav a { padding: 12px 8px; font-size: 16px; }
  .show-sm { display: grid; }
  .hide-sm { display: none; }
  .wrap { padding: 0 16px; }
  .hero { padding: 40px 0 60px; }
  .lead { font-size: 16px; }
  .section { padding: 60px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature.big { grid-column: auto; }
  .photo-demo { grid-template-columns: 1fr; }
  .photo-demo .arrow { width: 3px; height: 34px; margin: 0 auto; }
  .photo-demo .arrow::after { right: -6px; top: auto; bottom: -10px; border-left-color: transparent; border-top-color: var(--cyan); }
  .paper { width: 100%; max-width: 220px; margin: 0 auto; }
  .ref-card { flex-direction: column; align-items: flex-start; padding: 26px; }
  .top-actions .btn.primary { height: 38px; padding: 0 12px; font-size: 13.5px; white-space: nowrap; }
  .top-row { gap: 12px; }
  .top-actions { margin-left: auto; gap: 8px; }
}
@media (max-width: 380px) {
  .top .logo b { display: none; }
  .demo-q { top: 150px; }
  .demo-a { top: 210px; left: 4%; width: 90%; }
}