/* ===========================================================
   SensFlow — фірмова дизайн-система
   Преміум темна тема · бірюза + мідь («горнило творчості»)
   =========================================================== */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root{
  --bg:#0A1218;
  --bg-2:#0E1A22;
  --panel:#101F29;
  --panel-2:#13252F;
  --ink:#EAF2F4;
  --muted:#9DB1BC;
  --muted-2:#6F8693;
  --teal:#1FC4D4;
  --teal-2:#16B5C4;
  --teal-deep:#0E7C86;
  --copper:#F2A65A;
  --ember:#FF7A3C;
  --gold:#E8B964;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.05);
  --glass:rgba(255,255,255,.035);
  --radius:18px;
  --radius-sm:12px;
  --maxw:1200px;
  --shadow:0 24px 60px -24px rgba(0,0,0,.7);
  --shadow-glow:0 0 0 1px rgba(31,196,212,.18), 0 18px 50px -18px rgba(31,196,212,.28);
  --font-head:'Manrope',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--font-head);line-height:1.12;font-weight:800;letter-spacing:-.02em}

/* фоновий шар сторінки: глибокий градієнт + м'які сяйва */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(900px 600px at 78% -10%, rgba(31,196,212,.14), transparent 60%),
    radial-gradient(800px 600px at 8% 8%, rgba(255,122,60,.10), transparent 55%),
    linear-gradient(180deg,#0A1218 0%, #0A1218 60%, #0B161D 100%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;opacity:.5;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:42px 42px;
  -webkit-mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 75%);
  mask-image:radial-gradient(circle at 50% 0%, #000 0%, transparent 75%);
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section.tight{padding:64px 0}

/* ---------- типографіка / службові ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-head);font-weight:700;font-size:13px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--teal);
}
.eyebrow::before{content:"";width:26px;height:2px;background:linear-gradient(90deg,var(--teal),transparent);border-radius:2px}
h2.title{font-size:clamp(28px,4vw,46px);margin:14px 0 16px}
.lead{color:var(--muted);font-size:clamp(16px,1.4vw,19px);max-width:62ch}
.grad{background:linear-gradient(100deg,var(--teal) 10%,var(--gold) 60%,var(--ember) 95%);-webkit-background-clip:text;background-clip:text;color:transparent}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}

/* ---------- кнопки ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;cursor:pointer;border:none;
  font-family:var(--font-head);font-weight:700;font-size:15px;
  padding:14px 26px;border-radius:999px;transition:transform .2s ease,box-shadow .25s ease,background .25s ease;
  will-change:transform;
}
.btn svg{width:18px;height:18px}
.btn-primary{color:#0A1218;background:linear-gradient(100deg,var(--gold),var(--ember));box-shadow:0 12px 30px -10px rgba(255,122,60,.55)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -10px rgba(255,122,60,.7)}
.btn-ghost{color:var(--ink);background:var(--glass);border:1px solid var(--line)}
.btn-ghost:hover{transform:translateY(-2px);border-color:rgba(31,196,212,.5);box-shadow:var(--shadow-glow)}
.btn-teal{color:#04141a;background:linear-gradient(100deg,var(--teal),var(--teal-deep))}
.btn-teal:hover{transform:translateY(-2px);box-shadow:0 16px 40px -12px rgba(31,196,212,.6)}
.btn.lg{padding:17px 32px;font-size:16px}

/* ---------- хедер ---------- */
.header{
  position:sticky;top:0;z-index:100;
  backdrop-filter:saturate(140%) blur(14px);-webkit-backdrop-filter:saturate(140%) blur(14px);
  background:rgba(10,18,24,.62);border-bottom:1px solid var(--line-2);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--font-head);font-weight:800;font-size:20px;letter-spacing:-.01em}
.brand .logo{width:34px;height:34px;flex:none}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  font-family:var(--font-head);font-weight:600;font-size:15px;color:var(--muted);
  padding:9px 14px;border-radius:10px;transition:color .2s,background .2s;
}
.nav-links a:hover{color:var(--ink);background:var(--glass)}
.nav-links a.active{color:var(--ink)}
.nav-links a.active{position:relative}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--teal),var(--ember))}
.nav-cta{display:flex;align-items:center;gap:12px}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:44px;height:44px;cursor:pointer;color:var(--ink)}
.burger svg{width:22px;height:22px;margin:auto}

/* ---------- hero ---------- */
.hero{position:relative;padding:84px 0 76px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.hero h1{font-size:clamp(36px,5.6vw,68px);letter-spacing:-.03em}
.hero .kicker{margin-bottom:20px}
.hero p.sub{margin:22px 0 14px;font-size:clamp(17px,1.5vw,20px);color:var(--muted);max-width:54ch}
.slogan{
  margin:8px 0 30px;padding:18px 22px;border-left:3px solid var(--ember);
  background:linear-gradient(90deg,rgba(255,122,60,.10),transparent);
  border-radius:0 14px 14px 0;font-family:var(--font-head);font-weight:700;
  font-size:clamp(15px,1.5vw,18px);color:#F4E3CF;letter-spacing:.01em;line-height:1.5;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-trust{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero-trust .t{display:flex;flex-direction:column}
.hero-trust .t b{font-family:var(--font-head);font-size:26px;color:var(--ink)}
.hero-trust .t span{font-size:13px;color:var(--muted-2);letter-spacing:.04em}

/* hero visual */
.hero-visual{position:relative;border-radius:24px;overflow:hidden;aspect-ratio:4/3;
  background:
    radial-gradient(120% 90% at 30% 10%, rgba(31,196,212,.30), transparent 55%),
    radial-gradient(120% 100% at 80% 100%, rgba(255,122,60,.40), transparent 55%),
    linear-gradient(160deg,#12252F,#0A141A);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.hero-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.92}
.hero-visual .veil{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(7,14,18,.55));pointer-events:none}
.hero-visual .float{
  position:absolute;left:18px;bottom:18px;right:18px;display:flex;gap:10px;align-items:center;
  padding:13px 16px;border-radius:14px;background:rgba(10,18,24,.6);backdrop-filter:blur(10px);
  border:1px solid var(--line);font-size:13px;color:var(--muted)
}
.dot{width:9px;height:9px;border-radius:50%;background:var(--teal);box-shadow:0 0 12px var(--teal);flex:none;animation:pulse 2.2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

/* ---------- картки / сітки ---------- */
.grid{display:grid;gap:22px}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
.g-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:linear-gradient(180deg,var(--panel),var(--bg-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;position:relative;overflow:hidden;
}
.card:hover{transform:translateY(-4px);border-color:rgba(31,196,212,.35);box-shadow:var(--shadow-glow)}
.card .ic{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(31,196,212,.18),rgba(255,122,60,.16));border:1px solid var(--line)}
.card .ic svg{width:24px;height:24px;color:var(--teal)}
.card h3{font-size:19px;margin-bottom:8px}
.card p{color:var(--muted);font-size:15px}
.card .corner{position:absolute;top:-30px;right:-30px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,196,212,.16),transparent 70%);opacity:0;transition:opacity .3s}
.card:hover .corner{opacity:1}

/* стрічка-блок зі скляним фоном */
.panel{
  background:var(--glass);border:1px solid var(--line);border-radius:24px;padding:40px;
  backdrop-filter:blur(6px);box-shadow:var(--shadow)
}
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.media{border-radius:20px;overflow:hidden;border:1px solid var(--line);aspect-ratio:4/3;position:relative;
  background:linear-gradient(160deg,#12252F,#0A141A);box-shadow:var(--shadow)}
.media img{width:100%;height:100%;object-fit:cover}
.media .veil{position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(7,14,18,.5))}

/* ---------- стрічка логотипів/переваг ---------- */
.ribbon{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.chip{display:inline-flex;align-items:center;gap:9px;padding:10px 16px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);font-size:14px;color:var(--muted)}
.chip svg{width:16px;height:16px;color:var(--teal)}

/* ---------- кроки / how it works ---------- */
.steps{counter-reset:s;display:grid;gap:18px}
.step{display:grid;grid-template-columns:54px 1fr;gap:18px;align-items:start;padding:22px;border:1px solid var(--line);border-radius:16px;background:var(--glass)}
.step .n{counter-increment:s;width:54px;height:54px;border-radius:14px;display:grid;place-items:center;
  font-family:var(--font-head);font-weight:800;font-size:22px;color:#04141a;
  background:linear-gradient(135deg,var(--teal),var(--teal-deep))}
.step .n::before{content:counter(s)}
.step h4{font-size:18px;margin-bottom:5px}
.step p{color:var(--muted);font-size:15px}

/* ---------- статистика ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat{text-align:center;padding:26px;border:1px solid var(--line);border-radius:16px;background:var(--glass)}
.stat b{display:block;font-family:var(--font-head);font-weight:800;font-size:clamp(30px,3.5vw,44px);
  background:linear-gradient(100deg,var(--teal),var(--gold));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--muted);font-size:14px}

/* ---------- системи: фільтр + сітка ---------- */
.filters{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:34px}
.filters button{cursor:pointer;font-family:var(--font-head);font-weight:600;font-size:14px;color:var(--muted);
  background:var(--glass);border:1px solid var(--line);padding:9px 16px;border-radius:999px;transition:.2s}
.filters button:hover{color:var(--ink)}
.filters button.active{color:#04141a;background:linear-gradient(100deg,var(--teal),var(--teal-deep));border-color:transparent}
.sys-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sys{background:linear-gradient(180deg,var(--panel),var(--bg-2));border:1px solid var(--line);border-radius:16px;padding:22px;transition:.25s;position:relative}
.sys:hover{transform:translateY(-3px);border-color:rgba(31,196,212,.35);box-shadow:var(--shadow-glow)}
.sys .tag{position:absolute;top:16px;right:16px;font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--teal);background:rgba(31,196,212,.10);border:1px solid rgba(31,196,212,.25);padding:3px 9px;border-radius:999px}
.sys h4{font-size:17px;margin:0 70px 8px 0}
.sys p{color:var(--muted);font-size:14px;margin-bottom:12px}
.sys .ex{font-size:13px;color:var(--muted-2);border-top:1px dashed var(--line);padding-top:11px;font-style:italic}
.sys.sensitive .tag{color:var(--copper);background:rgba(242,166,90,.10);border-color:rgba(242,166,90,.3)}

/* ---------- timeline (team) ---------- */
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--teal),var(--ember))}
.tl{position:relative;margin-bottom:26px}
.tl::before{content:"";position:absolute;left:-30px;top:5px;width:16px;height:16px;border-radius:50%;
  background:var(--bg);border:3px solid var(--teal);box-shadow:0 0 14px rgba(31,196,212,.5)}
.tl h4{font-size:18px}
.tl span{font-size:13px;color:var(--teal);font-family:var(--font-head);font-weight:700;letter-spacing:.04em}
.tl p{color:var(--muted);font-size:15px;margin-top:5px}

/* founder card */
.founder{display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center}
.founder .ava{width:120px;height:120px;border-radius:24px;flex:none;display:grid;place-items:center;
  font-family:var(--font-head);font-weight:800;font-size:44px;color:#04141a;
  background:linear-gradient(135deg,var(--teal),var(--gold));box-shadow:var(--shadow-glow)}
.founder h3{font-size:24px}
.founder .role{color:var(--teal);font-family:var(--font-head);font-weight:700;margin:4px 0 12px}

/* ---------- форма ---------- */
.form{display:grid;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-family:var(--font-head);font-weight:600;font-size:14px}
.field .req{color:var(--ember)}
.field input,.field textarea,.field select{
  font-family:var(--font-body);font-size:15px;color:var(--ink);
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:12px;padding:13px 15px;transition:.2s;width:100%}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px rgba(31,196,212,.18)}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-2)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.hint{font-size:13px;color:var(--muted-2)}

/* ---------- CTA-блок ---------- */
.cta-band{position:relative;border-radius:28px;overflow:hidden;padding:56px;text-align:center;
  background:
    radial-gradient(100% 140% at 50% -20%, rgba(31,196,212,.22), transparent 60%),
    radial-gradient(120% 140% at 50% 120%, rgba(255,122,60,.28), transparent 60%),
    linear-gradient(180deg,#10212B,#0A141A);
  border:1px solid var(--line);box-shadow:var(--shadow)}
.cta-band h2{font-size:clamp(26px,3.6vw,40px);margin-bottom:14px}
.cta-band .lead{margin:0 auto 26px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);margin-top:40px;padding:54px 0 34px;background:rgba(7,13,17,.55)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.footer h5{font-family:var(--font-head);font-size:14px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted-2);margin-bottom:14px}
.footer a{display:block;color:var(--muted);font-size:15px;padding:5px 0;transition:.2s}
.footer a:hover{color:var(--teal)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  margin-top:38px;padding-top:22px;border-top:1px solid var(--line-2);color:var(--muted-2);font-size:14px}

/* ---------- reveal анімація ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}

/* ---------- адаптив ---------- */
@media(max-width:980px){
  .hero-grid,.split{grid-template-columns:1fr;gap:34px}
  .hero-visual{order:-1}
  .g-3,.g-4,.stats,.sys-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .section{padding:64px 0}
  .nav-links,.nav-cta .btn-ghost{display:none}
  .burger{display:grid}
  .nav-links.open{display:flex;position:absolute;top:72px;left:0;right:0;flex-direction:column;gap:4px;
    padding:16px 24px;background:rgba(10,18,24,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
  .nav-links.open a{padding:12px}
  .g-3,.g-4,.stats,.sys-grid,.g-2,.form-row{grid-template-columns:1fr}
  .founder{grid-template-columns:1fr;text-align:center}
  .founder .ava{margin:0 auto}
  .cta-band,.panel{padding:30px 22px}
  .foot-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
}