/* НЭК - упрощенный сайт на базе презентации 2025 | accent #448da7 */
:root{
  --teal:#448da7;
  --teal-dark:#2F6B84;
  --teal-light:#EAF3F7;
  --teal-100:#C5DDE8;
  --teal-50:#F2F8FA;
  --text:#1A2A36;
  --muted:#5B6F7E;
  --bg:#FFFFFF;
  --bg-gray:#F6F9FA;
  --border:#E2E8EC;
  --radius:14px;
  --radius-lg:20px;
  --shadow:0 6px 24px rgba(68,141,167,.12);
  --shadow-lg:0 12px 40px rgba(68,141,167,.18);
  --container:1200px;
  --header-h:64px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth; scroll-padding-top: var(--header-h)}
body{margin:0; font-family:'Inter',system-ui,sans-serif; color:var(--text); background:var(--bg); line-height:1.6; -webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:'Manrope',sans-serif; line-height:1.15; letter-spacing:-.02em; margin:0}
a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}
.container{max-width:var(--container); margin:0 auto; padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
.i-16{width:16px;height:16px}
.i-18{width:18px;height:18px}
.i-20{width:20px;height:20px}
.t-teal{color:var(--teal)}

/* Header - фон #448da7 */
.header{
  position:sticky; top:0; z-index:50; 
  background: var(--teal); 
  border-bottom:1px solid rgba(255,255,255,.15); 
  height:var(--header-h);
  box-shadow:0 2px 20px rgba(68,141,167,.25);
}
.header__inner{height:100%; display:flex; align-items:center; justify-content:space-between; gap:20px}
.logo{display:flex; align-items:center; gap:10px; font-family:'Manrope'; font-weight:800; font-size:22px; color:#fff; letter-spacing:-.03em}
.logo__img{width:32px; height:32px; object-fit:contain; display:block}
.logo--large{font-size:32px; color:var(--teal); gap:14px}
.logo--large .logo__img{width:48px; height:48px}
.logo__icon{display:grid; place-items:center}
.nav{display:flex; gap:28px}
.nav__link{font-size:14px; font-weight:600; color:rgba(255,255,255,.85); transition:.2s; position:relative; padding:4px 0}
.nav__link:hover{color:#fff}
.nav__link::after{content:''; position:absolute; left:0; bottom:-2px; width:0; height:2px; background:#fff; transition:.2s}
.nav__link:hover::after{width:100%}
.header__right{display:flex; align-items:center; gap:16px}
.header__phone{display:inline-flex; align-items:center; gap:6px; font-weight:700; color:#fff; font-size:14px; background:rgba(255,255,255,.15); padding:8px 14px; border-radius:999px; border:1px solid rgba(255,255,255,.2); transition:.2s}
.header__phone:hover{background:rgba(255,255,255,.25)}
.burger{display:none; width:40px; height:40px; border:1px solid rgba(255,255,255,.3); border-radius:8px; background:rgba(255,255,255,.1); flex-direction:column; align-items:center; justify-content:center; gap:5px; cursor:pointer}
.burger span{width:18px; height:2px; background:#fff; border-radius:2px; transition:.2s}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:900px){
  .nav{position:fixed; top:var(--header-h); left:0; right:0; bottom:0; background:var(--teal); flex-direction:column; padding:32px 20px; gap:20px; transform:translateX(100%); transition:.25s; box-shadow:-10px 0 30px rgba(0,0,0,.2)}
  .nav.is-open{transform:translateX(0)}
  .nav__link{font-size:18px; color:rgba(255,255,255,.9)}
  .burger{display:flex}
}

/* Buttons */
.btn{display:inline-flex; align-items:center; gap:8px; padding:14px 24px; border-radius:999px; font-family:'Manrope'; font-weight:700; font-size:13px; letter-spacing:.04em; text-transform:uppercase; border:1px solid transparent; cursor:pointer; transition:.2s}
.btn--dark{background:var(--teal); color:#fff; border-color:var(--teal)}
.btn--dark:hover{background:var(--teal-dark); transform:translateY(-1px); box-shadow:var(--shadow)}
.btn--light{background:#fff; color:var(--teal); border-color:#fff}
.btn--light:hover{background:var(--teal-50)}

/* Hero */
.hero{position:relative; min-height:78vh; display:flex; align-items:flex-end; overflow:hidden; background:#E6EFF3}
.hero__bg{position:absolute; inset:0}
.hero__bg img{width:100%; height:100%; object-fit:cover; object-position:center top}
.hero__overlay{position:absolute; inset:0; background: linear-gradient(90deg, rgba(255,255,255,.93) 0%, rgba(255,255,255,.78) 45%, rgba(255,255,255,.2) 100%), linear-gradient(0deg, rgba(255,255,255,.5) 0%, transparent 60%)}
.hero__container{position:relative; z-index:1; padding-top:80px; padding-bottom:60px; width:100%}
.hero__content{max-width:560px}
.hero__brand{display:flex; gap:16px; align-items:center; margin-bottom:32px}
.hero__logo-mark{width:64px; height:64px; display:grid; place-items:center; background:var(--teal); color:#fff; font-weight:800; font-size:22px; border-radius:12px; font-family:'Manrope'; box-shadow:var(--shadow); overflow:hidden}
.hero__logo-mark img{width:40px; height:40px; object-fit:contain}
.hero__brand span:last-child{font-family:'Manrope'; font-weight:700; font-size:16px; line-height:1.2; color:var(--text)}
.hero__title{font-size:34px; font-weight:800; color:var(--text); margin-bottom:16px; line-height:.95}
@media(min-width:768px){.hero__title{font-size:50px}}
@media(max-width:480px){.hero__title{font-size:30px}}
.hero__subtitle{font-size:16px; color:var(--muted); margin:0 0 28px; line-height:1.5}

/* Sections */
.section{padding:56px 0}
@media(min-width:768px){.section{padding:80px 0}}
.section--gray{background:var(--bg-gray)}
.section__header{margin-bottom:32px}
@media(min-width:768px){.section__header{margin-bottom:36px}}
.section__title{font-size:26px; font-weight:800; color:var(--teal)}
@media(min-width:768px){.section__title{font-size:36px}}
.section__subtitle{font-size:16px; color:var(--text); font-weight:500; margin-top:4px}
@media(min-width:768px){.section__subtitle{font-size:18px}}

/* About */
.about__grid{display:grid; gap:24px}
@media(min-width:1024px){.about__grid{grid-template-columns:1.2fr .8fr; gap:48px; align-items:start}}
.lead{font-size:17px; line-height:1.5; color:var(--text)}
@media(min-width:768px){.lead{font-size:18px}}
.about__text p{color:var(--muted); font-size:14px; margin:12px 0}
@media(min-width:768px){.about__text p{font-size:15px}}
.services-list{margin:24px 0 0; padding:0; list-style:none; display:grid; gap:10px}
.services-list li{display:flex; align-items:center; gap:10px; font-size:13px; font-weight:600; color:var(--teal); line-height:1.3}
@media(min-width:768px){.services-list li{font-size:14px}}
.about__visual{position:relative; min-height:280px; display:grid; place-items:center}
@media(min-width:1024px){.about__visual{min-height:360px}}
.about__helmet{width:90%; max-width:380px; position:relative; z-index:2; border-radius:20px; box-shadow:var(--shadow-lg); filter:drop-shadow(0 20px 40px rgba(68,141,167,.15))}
.about__visual--tall{min-height:400px; align-items:start}
.about__tall{width:100%; max-width:400px; height:auto; aspect-ratio:1/3; object-fit:cover; border-radius:20px; box-shadow:var(--shadow-lg); position:relative; z-index:2}
@media(min-width:1024px){.about__visual--tall{min-height:600px} .about__tall{max-width:360px}}
.about__blur{position:absolute; width:70%; height:70%; background:radial-gradient(ellipse at center, var(--teal-light) 0%, transparent 70%); top:15%; left:15%}

/* Engineering */
.eng__grid{display:grid; gap:16px}
@media(min-width:600px){.eng__grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:900px){.eng__grid{grid-template-columns:repeat(3,1fr); gap:20px}}
.eng-card{background:#fff; border:1px solid var(--border); border-radius:var(--radius-lg); overflow:hidden; transition:.25s; display:flex; flex-direction:column}
.eng-card:hover{box-shadow:var(--shadow-lg); transform:translateY(-3px); border-color:var(--teal-100)}
.eng-card__img{aspect-ratio:4/3; overflow:hidden; background:var(--bg-gray)}
.eng-card__img img{width:100%; height:100%; object-fit:cover; transition:.4s}
.eng-card:hover .eng-card__img img{transform:scale(1.05)}
.eng-card__title{font-size:15px; font-weight:800; color:var(--teal); text-align:center; padding:16px 12px 8px; letter-spacing:.02em; min-height:52px; display:grid; place-items:center}
.eng-card__list{list-style:none; margin:0; padding:0 20px 20px; display:grid; gap:4px; font-size:13px; color:var(--muted); flex:1}
@media(min-width:768px){.eng-card__list{font-size:14px}}
.eng-card__list li{line-height:1.4}

/* Projects - NO PHOTOS */
.projects__group{margin-bottom:40px}
@media(min-width:768px){.projects__group{margin-bottom:48px}}
.projects__group-title{font-size:18px; font-weight:700; color:var(--teal); margin-bottom:16px; padding-left:12px; border-left:4px solid var(--teal); line-height:1.3}
@media(min-width:768px){.projects__group-title{font-size:20px; margin-bottom:20px}}
.projects__grid{display:grid; gap:14px}
@media(min-width:640px){.projects__grid{grid-template-columns:1fr 1fr; gap:16px}}
.proj-card{background:#fff; border:1px solid var(--border); border-radius:var(--radius); padding:18px; transition:.2s; cursor:default}
@media(min-width:768px){.proj-card{padding:20px}}
.proj-card:hover{border-color:var(--teal-100); box-shadow:var(--shadow)}
.proj-card__flag{display:inline-flex; align-items:center; gap:6px; font-size:11px; font-weight:700; color:var(--teal); background:var(--teal-light); padding:4px 10px; border-radius:999px; margin-bottom:10px; text-transform:uppercase; letter-spacing:.03em; line-height:1.2}
.proj-card__title{font-size:13px; font-weight:600; line-height:1.4; color:var(--text); margin-bottom:10px}
@media(min-width:768px){.proj-card__title{font-size:14px}}
.proj-card__meta{font-size:12px; color:var(--teal); font-weight:700; background:var(--teal-50); display:inline-block; padding:4px 8px; border-radius:6px; margin-top:4px}
@media(min-width:768px){.proj-card__meta{font-size:13px}}
.proj-card__text{font-size:12px; color:var(--muted); line-height:1.5; margin:8px 0}
@media(min-width:768px){.proj-card__text{font-size:13px}}
.proj-card__list{margin:8px 0; padding-left:16px; font-size:12px; color:var(--muted); display:grid; gap:4px}
@media(min-width:768px){.proj-card__list{font-size:13px}}
.proj-card__list li{list-style:disc}

.projects__grid--edu{grid-template-columns:1fr}
@media(min-width:1024px){.projects__grid--edu{grid-template-columns:1fr 1fr}}
.proj-card--detailed{cursor:default; display:flex; flex-direction:column; padding:20px}
.proj-card--detailed:hover{transform:none}

/* Contacts */
.contacts{background:#fff; border-top:1px solid var(--border)}
.contacts__container{display:grid; gap:0; min-height:420px}
@media(min-width:900px){.contacts__container{grid-template-columns:380px 1fr; min-height:480px}}
.contacts__left{padding:32px 20px; display:flex; flex-direction:column; gap:24px; justify-content:center; background:#fff}
@media(min-width:768px){.contacts__left{padding:40px 32px; gap:32px}}
.contacts__info{display:grid; gap:12px; font-size:14px; color:var(--text)}
@media(min-width:768px){.contacts__info{font-size:15px}}
.contacts__info p{margin:0; line-height:1.5}
.contacts__phone{font-size:17px; font-weight:700; color:var(--teal); display:inline-flex; align-items:center; gap:8px}
@media(min-width:768px){.contacts__phone{font-size:18px}}
.contacts__email{color:var(--muted); font-weight:500; word-break:break-all}
.contacts__site{color:var(--muted); font-size:13px}
.contacts__right{position:relative; overflow:hidden; min-height:280px; background:var(--bg-gray)}
@media(min-width:900px){.contacts__right{min-height:320px}}
.contacts__right img{width:100%; height:100%; object-fit:cover}

/* Footer */
.footer{background:var(--teal); color:rgba(255,255,255,.85); padding:32px 0; border-top:1px solid rgba(255,255,255,.1)}
.footer__inner{display:flex; flex-direction:column; gap:16px; font-size:12px}
@media(min-width:768px){.footer__inner{flex-direction:row; justify-content:space-between; align-items:center}}
.footer__left{display:flex; flex-direction:column; gap:6px}
.footer__right{display:flex; flex-wrap:wrap; gap:16px; align-items:center}
.footer__link{color:rgba(255,255,255,.9); text-decoration:underline; text-underline-offset:3px; transition:.2s; font-weight:500}
.footer__link:hover{color:#fff}
.footer__copy{color:rgba(255,255,255,.7)}

/* Cookie banner */
.cookie{position:fixed; left:16px; right:16px; bottom:16px; z-index:100; background:#fff; border:1px solid var(--border); border-radius:16px; box-shadow:0 16px 48px rgba(0,0,0,.18); padding:16px; display:flex; flex-direction:column; gap:12px; transform:translateY(150%); transition:.4s cubic-bezier(.4,0,.2,1); max-width:520px}
@media(min-width:768px){.cookie{left:24px; right:auto; bottom:24px; padding:20px; flex-direction:row; align-items:center; gap:16px; max-width:560px}}
.cookie.is-visible{transform:translateY(0)}
.cookie__text{font-size:13px; color:var(--muted); line-height:1.4; flex:1}
.cookie__text a{color:var(--teal); text-decoration:underline; font-weight:600}
.cookie__actions{display:flex; gap:8px; flex-shrink:0}
.cookie__btn{padding:10px 18px; border-radius:999px; font-size:13px; font-weight:700; border:1px solid transparent; cursor:pointer; transition:.2s; font-family:'Manrope'}
.cookie__btn--accept{background:var(--teal); color:#fff; border-color:var(--teal)}
.cookie__btn--accept:hover{background:var(--teal-dark)}
.cookie__btn--decline{background:#fff; color:var(--muted); border-color:var(--border)}
.cookie__btn--decline:hover{border-color:var(--teal-100)}

/* Modals - privacy */
.modal{max-width:800px; width:90vw; background:#fff; border-radius:20px; padding:0; overflow:hidden; display:none}
.modal__header{padding:24px 24px 0; display:flex; justify-content:space-between; align-items:center; gap:16px; border-bottom:1px solid var(--border); padding-bottom:16px; margin-bottom:16px}
.modal__title{font-size:20px; font-weight:800; color:var(--teal)}
.modal__close{width:36px; height:36px; border-radius:50%; border:1px solid var(--border); background:#fff; display:grid; place-items:center; cursor:pointer; transition:.2s}
.modal__close:hover{border-color:var(--teal); background:var(--teal-light)}
.modal__body{padding:0 24px 24px; max-height:70vh; overflow:auto; font-size:14px; line-height:1.6; color:var(--text)}
.modal__body h3{font-size:16px; margin:20px 0 8px; color:var(--teal)}
.modal__body p{margin:0 0 12px; color:var(--muted)}
.modal__body ul{margin:8px 0 12px; padding-left:18px}
.modal__body li{margin:4px 0; color:var(--muted)}
.fancybox__content{border-radius:20px !important}

/* Adaptivity checks */
@media(max-width:480px){
  .container{padding:0 16px}
  .hero__brand{flex-direction:column; align-items:flex-start; gap:12px}
  .eng__grid{gap:12px}
  .projects__grid{gap:12px}
  .contacts__left{padding:24px 16px}
}