/* Maslahat AI — маркетинговый лендинг (Bento Box).
   Один файл на все три языка: /, /ru/, /en/. */
:root{
  --teal:#00d2d3;
  --teal-dark:#148e8f;
  --ink-teal:#083030;
  --tint-1:#d1fafa;
  --tint-2:#e3fbfc;
  --teal-a10:#00d2d31a;
  --n-0:#ffffff;
  --n-50:#f7f7f7;
  --n-100:#ebebeb;
  --n-200:#d1d1d1;
  --n-400:#a3a3a3;
  --n-600:#5c5c5c;
  --n-900:#171717;
  --r-8:8px; --r-12:12px; --r-16:16px; --r-20:20px; --r-24:24px; --pill:999px;
  --shadow-card:0 2px 10px rgba(51,51,51,.04);
  --shadow-lift:0 14px 34px rgba(51,51,51,.09);
  --ease:cubic-bezier(.16,.84,.32,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--n-0);
  color:var(--n-900);
  font-size:17px;line-height:1.5;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
::selection{background:var(--teal);color:var(--ink-teal)}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 clamp(18px,4vw,40px)}
.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* ---------- reveal ---------- */
.js .rv{opacity:0;transform:translateY(24px) scale(.985);transition:opacity .75s ease,transform .75s var(--ease);transition-delay:var(--d,0s)}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .js .rv{opacity:1;transform:none;transition:none}
  *{animation-duration:.001s !important;animation-iteration-count:1 !important;transition-duration:.001s !important}
  html{scroll-behavior:auto}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--pill);font-weight:600;letter-spacing:-.01em;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s,border-color .3s;
  white-space:nowrap;
}
.btn-primary{
  background:var(--teal);color:var(--ink-teal);
  padding:16px 32px;font-size:16.5px;
  box-shadow:0 4px 16px rgba(0,210,211,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(0,210,211,.4)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:var(--n-0);color:var(--n-900);
  padding:15px 28px;font-size:16.5px;border:1px solid var(--n-100);
}
.btn-ghost:hover{border-color:var(--n-200);background:var(--n-50);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14.5px;box-shadow:none}
.btn-white{background:#fff;color:var(--ink-teal);padding:16px 32px;font-size:16.5px;box-shadow:0 6px 20px rgba(8,48,48,.22)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(8,48,48,.3)}
.btn-outline-white{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.4);padding:15px 28px;font-size:16.5px}
.btn-outline-white:hover{background:rgba(255,255,255,.12);transform:translateY(-2px)}

/* ---------- floating nav ---------- */
.navbox{position:sticky;top:14px;z-index:100;padding:0 clamp(14px,3vw,28px)}
.navpill{
  max-width:1080px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:9px 10px 9px 20px;
  background:rgba(255,255,255,.74);
  -webkit-backdrop-filter:blur(18px) saturate(1.7);
  backdrop-filter:blur(18px) saturate(1.7);
  border:1px solid rgba(0,0,0,.06);
  border-radius:var(--pill);
  box-shadow:0 10px 30px rgba(51,51,51,.07);
}
.navpill .logo{flex:none}
.navpill .logo img{height:26px;width:auto}
.nav-links{display:flex;gap:28px;font-size:14.5px;font-weight:500;color:var(--n-600)}
.nav-links a{transition:color .2s}
.nav-links a:hover{color:var(--n-900)}
.nav-right{display:flex;align-items:center;gap:10px;flex:none}
.lang-sw{display:flex;gap:2px;background:var(--n-50);border-radius:var(--pill);padding:3px}
.lang-sw a{
  font-size:12.5px;font-weight:600;padding:5px 10px;border-radius:var(--pill);
  color:var(--n-600);transition:color .2s,background .2s;
}
.lang-sw a:hover{color:var(--n-900)}
.lang-sw a[aria-current="true"]{background:#fff;color:var(--n-900);box-shadow:var(--shadow-card)}
@media(max-width:900px){.nav-links{display:none}}
@media(max-width:520px){
  .navpill{padding-left:14px}
  .nav-cta{display:none}
}

/* ---------- hero ---------- */
.hero{padding:clamp(56px,8vw,96px) 0 clamp(36px,4vw,52px);text-align:center}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--tint-2);color:var(--teal-dark);
  font-size:13.5px;font-weight:600;border-radius:var(--pill);
  padding:8px 16px;margin-bottom:26px;
}
.hero-pill svg{width:14px;height:14px}
.h1{
  font-size:clamp(42px,7vw,68px);font-weight:700;letter-spacing:-.035em;line-height:1.04;
  max-width:820px;margin:0 auto;
}
.h1 .grad{
  background:linear-gradient(92deg,var(--teal) 10%,var(--teal-dark) 90%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  margin:22px auto 0;font-size:clamp(17px,2vw,19.5px);line-height:1.55;color:var(--n-600);max-width:620px;
}
.hero-cta{display:flex;justify-content:center;align-items:center;gap:14px;flex-wrap:wrap;margin-top:34px}
.stores{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:18px}
.store{
  display:flex;align-items:center;gap:10px;
  border:1px solid var(--n-100);border-radius:var(--r-12);
  padding:7px 15px 7px 11px;color:var(--n-900);cursor:default;background:var(--n-0);
}
.store svg{width:20px;height:20px;flex:none}
.store .st{display:flex;flex-direction:column;line-height:1.2;text-align:left}
.store .st b{font-size:13px;font-weight:600}
.store .st span{font-size:10px;color:var(--n-400);font-weight:500;text-transform:uppercase;letter-spacing:.06em}
.hero-trust{display:flex;justify-content:center;flex-wrap:wrap;gap:10px 26px;margin-top:34px}
.trust-i{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--n-600);font-weight:500}
.trust-i svg{width:16px;height:16px;color:var(--teal-dark);flex:none}

/* ---------- bento grid ---------- */
.bento-sec{padding:clamp(28px,4vw,48px) 0 clamp(60px,8vw,104px)}
.bento{
  display:grid;gap:18px;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:196px;
}
.card{
  position:relative;border-radius:var(--r-24);padding:26px;overflow:hidden;
  background:var(--n-50);box-shadow:var(--shadow-card);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lift)}
.card-tint{background:var(--tint-2)}
.card-dark{background:var(--ink-teal);color:#fff}
.c-chat{grid-column:span 2;grid-row:span 2}
.c-stats{grid-row:span 2}
.c-cta{grid-column:span 2}
.c-voice{grid-column:span 2}
.c-doc{grid-column:span 2}
.card-kicker{font-size:12px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--n-400);margin-bottom:8px}
.card-title{font-size:16.5px;font-weight:600;letter-spacing:-.01em}
.card-sub{font-size:13.5px;color:var(--n-600);margin-top:5px;line-height:1.45}
.card-dark .card-sub{color:rgba(255,255,255,.62)}

/* chat card */
.c-chat{display:flex;flex-direction:column;padding:24px}
.chat-head{display:flex;align-items:center;gap:10px;padding-bottom:14px;border-bottom:1px solid var(--n-100)}
.chat-head img{width:26px;height:26px;border-radius:7px}
.chat-head b{font-size:14px;font-weight:600}
.chat-head span{font-size:12px;color:var(--teal-dark);display:flex;align-items:center;gap:5px}
.chat-head span i{width:6px;height:6px;border-radius:50%;background:var(--teal);display:inline-block}
.chat-body{display:flex;flex-direction:column;gap:12px;padding-top:16px;flex:1;justify-content:flex-end}
.bub{max-width:82%;padding:12px 16px;border-radius:var(--r-16);font-size:14.5px;line-height:1.5}
.bub-user{align-self:flex-end;background:var(--tint-1);color:var(--ink-teal);border-bottom-right-radius:6px;font-weight:500}
.bub-ai{align-self:flex-start;background:#fff;box-shadow:var(--shadow-card);border-bottom-left-radius:6px;color:var(--n-900)}
.bub-ai .src{display:flex;align-items:center;gap:8px;margin-top:11px;flex-wrap:wrap}
.src-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--teal-a10);color:var(--teal-dark);
  font-size:12.5px;font-weight:600;border-radius:var(--r-8);padding:5px 10px;
}
.src-chip svg{width:12px;height:12px}
.src-note{font-size:12px;color:var(--n-400)}

/* stats card */
.c-stats{display:flex;flex-direction:column;justify-content:space-between;background:var(--tint-2)}
.stat-b{padding:6px 0}
.stat-b + .stat-b{border-top:1px solid rgba(20,142,143,.16);padding-top:18px}
.stat-num{font-size:clamp(38px,3.6vw,50px);font-weight:700;letter-spacing:-.035em;line-height:1;color:var(--ink-teal)}
.stat-num em{font-style:normal;color:var(--teal-dark)}
.stat-cap{font-size:13px;color:var(--teal-dark);font-weight:500;margin-top:7px;line-height:1.4}

/* languages card */
.lang-pills{display:flex;flex-direction:column;gap:8px;margin-top:14px}
.lang{
  display:flex;align-items:center;gap:9px;
  background:#fff;border:1px solid var(--n-100);border-radius:var(--pill);
  padding:7px 14px;font-size:13.5px;font-weight:600;width:max-content;
}
.lang .fl{font-size:15px;line-height:1}

/* hero scene card (Qoplon с книгой-логотипом) */
.c-scene{padding:0;background:var(--tint-2)}
.c-scene img,.c-scene video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 18%}
.scene-cap{
  position:absolute;left:0;right:0;bottom:0;text-align:center;
  padding:44px 18px 15px;
  background:linear-gradient(180deg,rgba(223,252,247,0) 0%,rgba(223,252,247,.96) 66%);
}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

/* document card */
.c-doc{display:flex;flex-direction:column;justify-content:flex-end}
.doc-sheet{
  position:absolute;top:18px;left:50%;transform:translateX(-50%) rotate(-3deg);
  width:118px;background:#fff;border-radius:10px;box-shadow:0 8px 22px rgba(51,51,51,.1);
  padding:13px 13px 11px;transition:transform .4s var(--ease);
}
.card:hover .doc-sheet{transform:translateX(-50%) rotate(0deg) translateY(-3px)}
.doc-sheet .dl{height:5px;border-radius:3px;background:var(--n-100);margin-bottom:6px}
.doc-sheet .dl.t{width:62%;background:var(--teal);margin-bottom:9px}
.doc-sheet .dl.s{width:84%}
.doc-sheet .badges{display:flex;gap:5px;margin-top:9px}
.doc-sheet .bdg{font-size:8.5px;font-weight:700;letter-spacing:.04em;color:var(--teal-dark);background:var(--teal-a10);border-radius:5px;padding:2.5px 6px}
.c-doc .card-title,.c-doc .card-sub{position:relative;z-index:1}
.c-doc .card-title{margin-top:96px}

/* voice card (dark) */
.c-voice{display:flex;flex-direction:column;justify-content:flex-end}
.wave{position:absolute;top:34px;left:0;right:0;display:flex;align-items:center;justify-content:center;gap:5px;height:56px}
.wave i{
  width:5px;border-radius:3px;background:var(--teal);height:calc(14px + var(--h,0) * 34px);
  animation:eq 1.3s ease-in-out calc(var(--i) * .11s) infinite alternate;
  transform-origin:center;
}
@keyframes eq{from{transform:scaleY(.35)}to{transform:scaleY(1)}}
@media (prefers-reduced-motion: reduce){.wave i{animation:none}}

/* dark cta card */
.c-cta{display:flex;align-items:center;gap:20px;padding:26px 30px}
.c-cta .txt{flex:1;min-width:0}
.c-cta h3{font-size:clamp(18px,1.9vw,22px);font-weight:700;letter-spacing:-.02em;line-height:1.25}
.c-cta p{font-size:13.5px;color:rgba(255,255,255,.62);margin:8px 0 16px;line-height:1.45}
.c-cta .btn-primary{padding:12px 24px;font-size:14.5px}
.c-cta img{
  width:132px;height:132px;object-fit:contain;flex:none;
  animation:float 5.4s ease-in-out infinite;
  filter:drop-shadow(0 14px 22px rgba(0,0,0,.3));
}

/* segments strip (полоса под bento: 6 карточек с иллюстрациями) */
.seg-strip{margin-top:18px}
.seg-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:14px}
.seg-tile{
  background:#fff;border:1px solid var(--n-100);border-radius:var(--r-16);overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.seg-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.seg-tile img{width:100%;height:auto;aspect-ratio:1;object-fit:cover;background:#f3f3f3}
.seg-tile b{
  display:block;text-align:center;padding:9px 10px 11px;
  font-size:13px;font-weight:600;letter-spacing:-.01em;color:var(--n-900);
}

/* projects / anon cards */
.ic-bubble{
  width:42px;height:42px;border-radius:var(--r-12);
  display:flex;align-items:center;justify-content:center;margin-bottom:auto;
  background:var(--teal-a10);color:var(--teal-dark);
}
.ic-bubble svg{width:21px;height:21px}
.c-icard{display:flex;flex-direction:column}
.c-icard .card-title{margin-top:14px}
.file-rows{display:flex;flex-direction:column;gap:6px;margin:2px 0 auto}
.frow{
  display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--n-100);
  border-radius:var(--r-8);padding:6px 10px;font-size:12px;font-weight:500;color:var(--n-600);width:max-content;max-width:100%;
}
.frow svg{width:13px;height:13px;color:var(--teal-dark);flex:none}

@media(max-width:980px){
  .bento{grid-template-columns:repeat(2,1fr);grid-auto-rows:200px}
  .c-chat{grid-column:span 2}
  .c-stats{grid-row:span 1;flex-direction:row;align-items:center;gap:20px}
  .stat-b + .stat-b{border-top:none;border-left:1px solid rgba(20,142,143,.16);padding-top:6px;padding-left:20px}
  .c-scene{grid-column:span 2;grid-row:span 2}
  .seg-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:600px){
  .bento{grid-template-columns:1fr;grid-auto-rows:auto}
  .c-chat,.c-cta,.c-voice,.c-doc,.c-scene{grid-column:span 1}
  .card{min-height:180px}
  .c-cta{flex-direction:column;text-align:center;align-items:center}
  .c-doc .card-title{margin-top:120px}
  .c-scene{grid-row:auto;aspect-ratio:1}
  .c-voice{min-height:200px}
  .seg-grid{grid-template-columns:repeat(2,1fr)}
}

/* ---------- sections ---------- */
.sec-pad{padding:clamp(56px,8vw,96px) 0}
.sec-head{text-align:center;margin-bottom:clamp(32px,5vw,52px)}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.15em;text-transform:uppercase;color:var(--teal-dark);margin-bottom:14px}
.h2{font-size:clamp(30px,4.2vw,44px);font-weight:700;letter-spacing:-.03em;line-height:1.08}

/* ---------- how it works ---------- */
.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.how-card{
  background:var(--n-50);border-radius:var(--r-24);padding:30px 28px;
  box-shadow:var(--shadow-card);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
}
.how-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lift)}
.how-num{
  width:44px;height:44px;border-radius:50%;background:var(--tint-1);color:var(--teal-dark);
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;margin-bottom:18px;
}
.how-title{font-size:18.5px;font-weight:700;letter-spacing:-.015em;line-height:1.3}
.how-desc{margin-top:10px;font-size:14.5px;color:var(--n-600)}
@media(max-width:820px){.how-grid{grid-template-columns:1fr}}

/* ---------- faq ---------- */
.faq-list{max-width:760px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--n-50);border-radius:var(--r-16);
  transition:background .3s,box-shadow .3s;
}
.faq-item.open{background:#fff;box-shadow:var(--shadow-lift)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  text-align:left;padding:20px 24px;font-size:16.5px;font-weight:600;letter-spacing:-.01em;color:var(--n-900);
}
.faq-q .plus{width:30px;height:30px;flex:none;border-radius:50%;background:#fff;box-shadow:var(--shadow-card);display:flex;align-items:center;justify-content:center;color:var(--n-400);transition:transform .4s var(--ease),background .3s,color .3s}
.faq-item.open .plus{transform:rotate(45deg);background:var(--teal);color:var(--ink-teal)}
.faq-q .plus svg{width:13px;height:13px}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .45s var(--ease)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-in{overflow:hidden}
.faq-a p{padding:0 24px 22px;font-size:15px;color:var(--n-600)}

/* ---------- final gradient card ---------- */
.final-card{
  position:relative;border-radius:28px;overflow:hidden;
  background:linear-gradient(130deg,var(--teal) 0%,var(--teal-dark) 100%);
  color:#fff;
  padding:clamp(40px,6vw,68px) clamp(28px,5vw,64px);
  display:grid;grid-template-columns:1fr auto;align-items:center;gap:clamp(20px,4vw,48px);
  box-shadow:0 24px 60px rgba(0,210,211,.28);
}
.final-card::before{
  content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:rgba(255,255,255,.12);top:-220px;right:-120px;pointer-events:none;
}
.final-card::after{
  content:"";position:absolute;width:280px;height:280px;border-radius:50%;
  background:rgba(8,48,48,.12);bottom:-160px;left:-80px;pointer-events:none;
}
.final-card h2{font-size:clamp(30px,4.4vw,48px);font-weight:700;letter-spacing:-.03em;line-height:1.06}
.final-card p{margin-top:16px;font-size:clamp(15px,1.8vw,18px);color:rgba(255,255,255,.86);max-width:480px}
.final-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px;position:relative;z-index:1}
.final-mascot{
  width:clamp(150px,17vw,225px);height:auto;position:relative;z-index:1;
  animation:float 5.6s ease-in-out infinite;
  filter:drop-shadow(0 20px 32px rgba(8,48,48,.3));
}
@media(max-width:760px){
  .final-card{grid-template-columns:1fr;text-align:center}
  .final-card p{margin-left:auto;margin-right:auto}
  .final-cta{justify-content:center}
  .final-mascot{margin:0 auto;order:-1;width:150px}
}

/* ---------- footer ---------- */
.footer{padding:44px 0 52px;border-top:1px solid var(--n-100);margin-top:clamp(48px,7vw,88px)}
.footer-inner{display:flex;align-items:flex-start;justify-content:space-between;gap:28px;flex-wrap:wrap}
.footer-logo img{height:24px;width:auto}
.footer-copy{margin-top:14px;font-size:13.5px;color:var(--n-400)}
.footer-links{display:flex;gap:26px;flex-wrap:wrap;font-size:14.5px;font-weight:500;color:var(--n-600)}
.footer-links a{transition:color .2s}
.footer-links a:hover{color:var(--n-900)}