/* ===== Reset & Variables ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#0b0d17;
  --bg-soft:#11142a;
  --surface:#ffffff;
  --surface-soft:#f6f7fb;
  --text:#0f172a;
  --text-soft:#5b6478;
  --muted:#8b93a7;
  --brand:#6366f1;
  --brand-2:#a855f7;
  --brand-3:#22d3ee;
  --border:#e6e8f0;
  --radius:18px;
  --shadow:0 20px 50px -20px rgba(36,40,90,.25);
  --maxw:1200px;
  --grad:linear-gradient(120deg,#6366f1,#a855f7 55%,#22d3ee);
}
html{scroll-behavior:smooth}
body{
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  color:var(--text);background:var(--surface);line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.gradient-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ===== Buttons ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;padding:14px 26px;border-radius:12px;
  border:1px solid transparent;cursor:pointer;transition:.25s;white-space:nowrap}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 12px 30px -10px rgba(99,102,241,.7)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px -12px rgba(99,102,241,.85)}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.25)}
.btn--ghost:hover{background:rgba(255,255,255,.08)}
.btn--sm{padding:10px 18px;font-size:14px}
.btn--full{width:100%}

/* ===== Header ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:50;
  background:rgba(11,13,23,.55);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.06);transition:.3s}
.header.scrolled{background:rgba(11,13,23,.92)}
.header__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#fff}
.logo__mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;
  background:var(--grad);color:#fff;font-size:14px;font-weight:700}
.logo__text strong{font-weight:800}
.nav{display:flex;gap:30px}
.nav__link{color:rgba(255,255,255,.78);font-size:15px;font-weight:500;transition:.2s}
.nav__link:hover{color:#fff}
.header__actions{display:flex;align-items:center;gap:14px}

/* Language switcher */
.lang{position:relative}
.lang__btn{display:flex;align-items:center;gap:5px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);color:#fff;font-weight:600;font-size:14px;
  padding:8px 12px;border-radius:10px;cursor:pointer;transition:.2s}
.lang__btn:hover{background:rgba(255,255,255,.16)}
.lang__btn i{font-style:normal;font-size:10px;opacity:.7}
.lang__menu{position:absolute;top:calc(100% + 8px);right:0;min-width:150px;
  background:#14172e;border:1px solid rgba(255,255,255,.1);border-radius:12px;
  padding:6px;box-shadow:0 20px 40px -15px rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transform:translateY(-8px);transition:.2s;z-index:60}
.lang__menu.open{opacity:1;visibility:visible;transform:none}
.lang__menu button{display:block;width:100%;text-align:left;background:none;border:none;
  color:rgba(255,255,255,.85);font-size:14px;font-weight:500;padding:9px 12px;
  border-radius:8px;cursor:pointer;transition:.15s}
.lang__menu button:hover{background:rgba(255,255,255,.1);color:#fff}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.burger span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.burger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.active span:nth-child(2){opacity:0}
.burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero ===== */
.hero{position:relative;background:var(--bg);color:#fff;padding:150px 0 90px;overflow:hidden}
.hero__glow{position:absolute;top:-200px;right:-150px;width:700px;height:700px;
  background:radial-gradient(circle,rgba(99,102,241,.45),transparent 60%);filter:blur(40px);pointer-events:none}
.hero__inner{display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center;position:relative}
.badge{display:inline-block;padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);margin-bottom:22px}
.hero__title{font-size:clamp(34px,4.6vw,58px);line-height:1.08;font-weight:800;letter-spacing:-1px;margin-bottom:20px}
.hero__subtitle{font-size:18px;color:rgba(255,255,255,.72);max-width:560px;margin-bottom:32px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:46px}
.hero__trust{display:flex;gap:40px;flex-wrap:wrap}
.hero__trust-item{display:flex;flex-direction:column}
.hero__trust-item strong{font-size:28px;font-weight:800}
.hero__trust-item span{font-size:13px;color:rgba(255,255,255,.6)}

/* Code card */
.hero__visual{position:relative}
.code-card{background:#0f1226;border:1px solid rgba(255,255,255,.1);border-radius:16px;
  box-shadow:0 30px 70px -25px rgba(0,0,0,.7);overflow:hidden}
.code-card__bar{display:flex;align-items:center;gap:7px;padding:13px 16px;background:rgba(255,255,255,.04);
  border-bottom:1px solid rgba(255,255,255,.07)}
.code-card__bar span{width:11px;height:11px;border-radius:50%}
.code-card__bar span:nth-child(1){background:#ff5f56}
.code-card__bar span:nth-child(2){background:#ffbd2e}
.code-card__bar span:nth-child(3){background:#27c93f}
.code-card__bar em{margin-left:auto;font-style:normal;font-size:12px;color:rgba(255,255,255,.45)}
.code-card__body{padding:22px;font-family:'SF Mono',Menlo,monospace;font-size:14px;line-height:1.7;color:#cdd3e8;overflow-x:auto}
.c-key{color:#c792ea}.c-cls{color:#82aaff}.c-str{color:#c3e88d}.c-num{color:#f78c6c}
.floating{position:absolute;background:#fff;color:var(--text);font-size:13px;font-weight:600;
  padding:10px 16px;border-radius:12px;box-shadow:var(--shadow);animation:float 4s ease-in-out infinite}
.floating--1{top:-22px;left:-24px}
.floating--2{bottom:-20px;right:-18px;animation-delay:1.5s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ===== Tech strip ===== */
.tech{background:var(--bg-soft);padding:34px 0;border-bottom:1px solid rgba(255,255,255,.05)}
.tech__label{text-align:center;color:rgba(255,255,255,.45);font-size:13px;margin-bottom:18px;letter-spacing:.5px;text-transform:uppercase}
.tech__row{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 38px}
.tech__row span{color:rgba(255,255,255,.62);font-weight:600;font-size:17px}

/* ===== Section heads ===== */
.section__head{text-align:center;max-width:640px;margin:0 auto 56px}
.section__tag{display:inline-block;color:var(--brand);font-weight:700;font-size:14px;
  letter-spacing:1px;text-transform:uppercase;margin-bottom:12px}
.section__tag--light{color:#c4b5fd}
.section__title{font-size:clamp(28px,3.4vw,42px);font-weight:800;letter-spacing:-.5px;line-height:1.15}
.section__desc{color:var(--text-soft);font-size:17px;margin-top:14px}

/* ===== Services ===== */
.services{background:var(--surface-soft)}
.services__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:28px 24px;transition:.3s}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.service-card__icon{width:54px;height:54px;display:grid;place-items:center;font-size:26px;
  border-radius:14px;background:linear-gradient(135deg,#eef0ff,#f6edff);margin-bottom:18px}
.service-card h3{font-size:19px;font-weight:700;margin-bottom:8px}
.service-card p{color:var(--text-soft);font-size:14.5px;margin-bottom:14px}
.service-card ul{display:flex;flex-direction:column;gap:6px}
.service-card li{position:relative;padding-left:20px;font-size:13.5px;color:var(--muted)}
.service-card li::before{content:"✓";position:absolute;left:0;color:var(--brand);font-weight:700}

/* ===== Process ===== */
.process__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.step{padding:30px 24px;border:1px solid var(--border);border-radius:var(--radius);position:relative;background:#fff}
.step__num{font-size:40px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.step h3{font-size:19px;font-weight:700;margin:8px 0 8px}
.step p{color:var(--text-soft);font-size:14.5px}

/* ===== Portfolio ===== */
.portfolio{background:var(--surface-soft)}
.portfolio__grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.proj-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:.3s}
.proj-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.proj-card__img{height:180px;background:var(--bg,#6366f1);display:grid;place-items:center;font-size:56px}
.proj-card__body{padding:24px}
.proj-card__tag{display:inline-block;font-size:12px;font-weight:700;color:var(--brand);
  background:#eef0ff;padding:5px 12px;border-radius:999px;margin-bottom:12px}
.proj-card h3{font-size:20px;font-weight:700;margin-bottom:6px}
.proj-card p{color:var(--text-soft);font-size:14.5px}

/* ===== Stats ===== */
.stats{background:var(--bg);color:#fff;padding:64px 0}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat strong{display:block;font-size:48px;font-weight:800;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat span{color:rgba(255,255,255,.6);font-size:15px;margin-top:8px;display:inline-block}

/* ===== About ===== */
.about__inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about__text p{color:var(--text-soft);font-size:16px;margin:14px 0}
.about__list{display:grid;gap:10px;margin:22px 0 28px}
.about__list li{font-size:15.5px;font-weight:500}
.about__cards{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.value-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 22px}
.value-card span{font-size:30px}
.value-card h4{font-size:17px;font-weight:700;margin:12px 0 6px}
.value-card p{color:var(--text-soft);font-size:14px}

/* ===== Contact ===== */
.contact{background:var(--bg);color:#fff}
.contact__inner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact__info .section__title{color:#fff}
.contact__info p{color:rgba(255,255,255,.7);margin:14px 0 26px}
.contact__list{display:grid;gap:16px}
.contact__list li{display:flex;align-items:center;gap:12px;font-size:16px;color:rgba(255,255,255,.85)}
.contact__list a:hover{color:var(--brand-3)}
.contact__form{background:#fff;border-radius:20px;padding:32px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text-soft);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:13px 15px;border:1px solid var(--border);
  border-radius:11px;font-family:inherit;font-size:15px;color:var(--text);background:#fbfcff;transition:.2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(99,102,241,.12)}
.form-note{margin-top:12px;font-size:14px;color:#16a34a;text-align:center;min-height:18px}

/* ===== Footer ===== */
.footer{background:#070811;color:rgba(255,255,255,.7);padding:60px 0 26px}
.footer__inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer__brand p{margin-top:16px;font-size:14px;max-width:300px}
.logo--light{margin-bottom:0}
.footer__col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer__col a{display:block;font-size:14px;margin-bottom:10px;transition:.2s}
.footer__col a:hover{color:#fff}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;
  margin-top:46px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:rgba(255,255,255,.45)}

/* ===== Reveal animation ===== */
.reveal{opacity:0;transform:translateY(28px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===== Responsive ===== */
@media(max-width:980px){
  .hero__inner,.about__inner,.contact__inner{grid-template-columns:1fr;gap:40px}
  .hero__visual{order:-1;max-width:480px}
  .services__grid,.process__grid{grid-template-columns:repeat(2,1fr)}
  .stats__grid{grid-template-columns:repeat(2,1fr);gap:36px}
  .footer__inner{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .section{padding:64px 0}
  .nav{position:fixed;top:72px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(11,13,23,.98);padding:10px 24px;transform:translateY(-120%);transition:.35s;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav.open{transform:none}
  .nav__link{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06)}
  .burger{display:flex}
  .header__actions .btn{display:none}
  .services__grid,.process__grid,.portfolio__grid,.about__cards,.footer__inner{grid-template-columns:1fr}
  .hero__trust{gap:26px}
  .footer__bottom{flex-direction:column;gap:8px}
}