:root{
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px);
  padding-bottom:env(safe-area-inset-bottom,0px);

  --bg:#F3F7EF;
  --surface:#FFFFFF;
  --surface-tint:#EAF3E6;
  --ink:#20362A;
  --ink-soft:#4A5F52;
  --primary:#2E7A57;
  --primary-dark:#1F5A3F;
  --amber:#F0A93A;
  --coral:#E97662;
  --sky:#5A9FC4;
  --line:#D9E7D2;
  --radius-lg:28px;
  --radius-md:18px;
  --radius-sm:12px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth; scroll-padding-top:calc(96px + env(safe-area-inset-top,0px));}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:'PT Sans', Arial, sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.brand{
  font-family:'Comfortaa', 'PT Sans', sans-serif;
  font-weight:700;
  color:var(--primary-dark);
  line-height:1.25;
  margin:0;
}
a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}
ul{margin:0; padding:0; list-style:none;}
.wrap{max-width:1120px; margin:0 auto; padding:0 24px;}

/* ---------- Topbar ---------- */
.topbar{background:var(--primary-dark); color:#EAF3E6; font-size:14px;}
.topbar .wrap{display:flex; flex-wrap:wrap; gap:6px 20px; justify-content:space-between; padding-top:10px; padding-bottom:10px;}
.topbar a{opacity:.92;}
.topbar a:hover{opacity:1; text-decoration:underline;}
.topbar .tb-group{display:flex; gap:18px; flex-wrap:wrap;}
.topbar {display: none !important;}

/* ---------- Header / nav ---------- */
header.site{
  position:sticky; top:0; z-index:40;
  background:rgba(243,247,239,.9);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  padding-top:env(safe-area-inset-top,0px);
}
nav.main{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 24px; max-width:1120px; margin:0 auto; gap:16px; flex-wrap:wrap;
}
.brand-row{display:flex; align-items:center; gap:12px;}
.brand-row .name{font-size:19px;}
.brand-row .name small{display:block; font-family:'PT Sans',sans-serif; font-weight:400; font-size:12.5px; color:var(--ink-soft);}
.nav-right{display:flex; align-items:center; gap:14px;}
.navlinks{display:flex; gap:28px; align-items:center;}
.navlinks a{font-size:15px; font-weight:700; color:var(--primary-dark); position:relative; padding:6px 0;}
.navlinks a:after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--amber);transform:scaleX(0);transition:transform .2s ease;}
.navlinks a:hover:after{transform:scaleX(1);}
.navlinks .cta{background:var(--primary); color:#fff !important; padding:10px 20px; border-radius:999px; font-weight:700;}
.navlinks .cta:after{display:none;}
.navlinks .cta:hover{background:var(--primary-dark);}

/* language switch */
.lang-switch{display:flex; border:1px solid var(--line); border-radius:999px; overflow:hidden; background:var(--surface);}
.lang-btn{
  border:none; background:transparent; padding:7px 13px; font-family:'PT Sans',sans-serif;
  font-weight:700; font-size:12.5px; letter-spacing:.4px; color:var(--ink-soft); cursor:pointer;
}
.lang-btn.active{background:var(--primary); color:#fff;}

.burger{display:none; background:none; border:none; cursor:pointer; padding:8px;}
.burger span{display:block; width:24px; height:2px; background:var(--primary-dark); margin:5px 0; border-radius:2px;}

/* ---------- Emblem ---------- */
.emblem{width:46px; height:46px; flex:none;}

/* ---------- Hero ---------- */
.hero{position:relative; overflow:hidden; padding:64px 0 40px;}
.hero .wrap{display:grid; grid-template-columns:1.05fr .95fr; gap:40px; align-items:center;}
.hero-blob{position:absolute; border-radius:50%; opacity:.5; filter:blur(2px); z-index:0;}
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--surface); border:1px solid var(--line);
  padding:7px 16px; border-radius:999px; font-size:13.5px;
  color:var(--primary-dark); font-weight:700; margin-bottom:18px;
}
.hero h1{font-size:clamp(32px,4.4vw,50px); letter-spacing:.2px;}
.hero h1 .accent{color:var(--coral);}
.hero p.lead{font-size:18px; color:var(--ink-soft); max-width:46ch; margin:18px 0 28px;}
.hero-ctas{display:flex; gap:14px; flex-wrap:wrap;}
.btn{display:inline-flex; align-items:center; gap:8px; padding:13px 24px; border-radius:999px; font-weight:700; font-size:15.5px; border:2px solid transparent; cursor:pointer;}
.btn-primary{background:var(--primary); color:#fff;}
.btn-primary:hover{background:var(--primary-dark);}
.btn-ghost{border-color:var(--primary); color:var(--primary-dark);}
.btn-ghost:hover{background:var(--surface-tint);}
.hero-art{position:relative; z-index:1;}

.stat-strip{display:flex; gap:28px; margin-top:40px; border-top:1px solid var(--line); padding-top:22px; flex-wrap:wrap;}
.stat-strip div{min-width:120px;}
.stat-strip b{display:block; font-family:'Comfortaa',sans-serif; font-size:24px; color:var(--primary-dark);}
.stat-strip span{font-size:13.5px; color:var(--ink-soft);}

/* ---------- Section shell ---------- */
section{padding:76px 0;}
.section-head{max-width:640px; margin-bottom:44px;}
.section-head .tag{color:var(--coral); font-weight:700; font-size:14px; margin-bottom:8px; display:block;}
.section-head h2{font-size:clamp(26px,3.2vw,36px);}
.section-head p{color:var(--ink-soft); margin-top:12px; font-size:16.5px;}
.alt{background:var(--surface);}

/* ---------- About ---------- */
.about-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:44px; align-items:start;}
.about-grid p{color:var(--ink-soft); margin:0 0 16px; font-size:16.5px;}
.fact-card{background:var(--bg); border:1px solid var(--line); border-radius:var(--radius-md); padding:26px;}
.fact-card h3{font-size:16px; margin-bottom:16px; color:var(--primary-dark);}
.fact-list li{display:flex; justify-content:space-between; gap:16px; padding:10px 0; border-top:1px solid var(--line); font-size:15px;}
.fact-list li:first-child{border-top:none;}
.fact-list span.k{color:var(--ink-soft);}
.fact-list span.v{font-weight:700; text-align:right;}

/* ---------- Advantages ---------- */
.adv-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:22px;}
.adv-card{background:var(--surface); border:1px solid var(--line); border-radius:var(--radius-md); padding:28px 22px; position:relative; overflow:hidden;}
.adv-card .icon-wrap{width:52px; height:52px; border-radius:14px; display:flex; align-items:center; justify-content:center; margin-bottom:18px;}
.adv-card h3{font-size:17px; margin-bottom:10px;}
.adv-card p{font-size:14.5px; color:var(--ink-soft); margin:0;}
.adv-card:nth-child(1) .icon-wrap{background:#E4F1E9;}
.adv-card:nth-child(2) .icon-wrap{background:#FCEBD8;}
.adv-card:nth-child(3) .icon-wrap{background:#FBE4E0;}
.adv-card:nth-child(4) .icon-wrap{background:#E1EEF6;}

/* ---------- Gallery ---------- */
.gal-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:18px;}
.gal-card{border-radius:var(--radius-md); padding:26px 20px; min-height:170px; display:flex; flex-direction:column; justify-content:flex-end; gap:6px; color:#fff; position:relative; overflow:hidden;}
.gal-card h4{font-family:'Comfortaa',sans-serif; font-size:16px; margin:0;}
.gal-card span{font-size:13px; opacity:.9;}
.gal-card svg{position:absolute; top:14px; right:14px; opacity:.85;}
.g1{background:linear-gradient(135deg,#2E7A57,#63A97F);}
.g2{background:linear-gradient(135deg,#E97662,#F2A98C);}
.g3{background:linear-gradient(135deg,#5A9FC4,#8FC4DE);}
.g4{background:linear-gradient(135deg,#F0A93A,#F5C97C);}
.g5{background:linear-gradient(135deg,#8B6CC7,#B59FE0);}
.g6{background:linear-gradient(135deg,#1F5A3F,#2E7A57);}

/* ---------- Contact ---------- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:36px; align-items:stretch;}
.contact-card{background:var(--primary-dark); color:#EAF3E6; border-radius:var(--radius-lg); padding:38px; display:flex; flex-direction:column; gap:22px; justify-content:center;}
.contact-card h3{color:#fff; font-size:22px;}
.contact-row{display:flex; gap:14px; align-items:flex-start;}
.contact-row .ic{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.12); display:flex;align-items:center;justify-content:center; flex:none;}
.contact-row a, .contact-row div.txt{font-size:15.5px; line-height:1.5;}
.contact-row .label{font-size:12.5px; opacity:.75; margin-bottom:2px;}

.map-card{border-radius:var(--radius-lg); overflow:hidden; border:1px solid var(--line); background:var(--surface); display:flex; flex-direction:column;}
.map-frame{width:100%; height:260px; border:0; display:block; background:var(--surface-tint);}
.map-links{display:flex; gap:10px; flex-wrap:wrap; padding:16px;}
.map-links a{
  font-size:13.5px; font-weight:700; color:var(--primary-dark);
  border:1px solid var(--line); border-radius:999px; padding:8px 14px;
}
.map-links a:hover{background:var(--surface-tint);}

/* ---------- Footer ---------- */
footer{background:var(--primary-dark); color:#DCEBE2; padding:56px 0 28px; margin-top:20px;}
.foot-grid{display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:36px;}
footer h4{color:#fff; font-family:'Comfortaa',sans-serif; font-size:16px; margin-bottom:16px;}
footer p{color:#B9D2C4; font-size:14.5px; margin:0 0 14px;}
footer ul li{margin-bottom:9px; font-size:14.5px;}
footer ul li a:hover{text-decoration:underline;}
.foot-bottom{border-top:1px solid rgba(255,255,255,.14); margin-top:40px; padding-top:22px; font-size:13px; color:#9FBBAC;}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .hero .wrap{grid-template-columns:1fr;}
  .hero-art{order:-1; max-width:340px; margin:0 auto;}
  .about-grid{grid-template-columns:1fr;}
  .adv-grid{grid-template-columns:repeat(2,1fr);}
  .gal-grid{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:720px){
  .navlinks{
    position:fixed; inset:64px 16px auto 16px; background:var(--surface);
    border:1px solid var(--line); border-radius:var(--radius-md);
    flex-direction:column; align-items:flex-start; padding:18px 20px; gap:14px;
    box-shadow:0 20px 40px rgba(31,90,63,.15);
    transform:translateY(-12px); opacity:0; pointer-events:none; transition:.18s ease;
  }
  .navlinks.open{transform:translateY(0); opacity:1; pointer-events:auto;}
  .burger{display:block;}
  .adv-grid{grid-template-columns:1fr;}
  .gal-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
}

/* ---------- Dark mode ---------- */
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#14201A; --surface:#1B2A22; --surface-tint:#22342A;
    --ink:#EAF3E6; --ink-soft:#A9C2B3; --primary:#4FA57C; --primary-dark:#245C42;
    --line:#2A3C31;
  }
  :root:not([data-theme="light"]) header.site{background:rgba(20,32,26,.85);}
}
:root[data-theme="dark"]{
  --bg:#14201A; --surface:#1B2A22; --surface-tint:#22342A;
  --ink:#EAF3E6; --ink-soft:#A9C2B3; --primary:#4FA57C; --primary-dark:#245C42;
  --line:#2A3C31;
}

/* Навигационные ссылки */
.navlinks a {
  position: relative;
  text-decoration: none;
  padding-bottom: 6px; /* Зазор под текстом для полоски */
  transition: color 0.3s ease;
}

/* Иконки документов */
.badge-doc { background: #2b579a; color: #fff; }
.badge-xls { background: #217346; color: #fff; }
.badge-ppt { background: #d24726; color: #fff; }

/* Полоска под активным пунктом */
.navlinks a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 3px;
  background-color: var(--amber, #F0A93A); /* Цвет подчеркивания */
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* При активации (ScrollSpy или клике) ширина полоски становится 100% */
.navlinks a.active::after {
  width: 100%;
}

/* По желанию: появление полоски при наведении курсора */
.navlinks a:hover::after {
  width: 100%;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}
.social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--surface-tint, #f0f7f4);
  color: var(--primary-dark, #1f5a3f);
  border: 1px solid var(--line, #e0e0e0);
  transition: all 0.2s ease;
}
.social-btn:hover {
  background: var(--primary, #2e7a57);
  color: #ffffff;
  border-color: var(--primary, #2e7a57);
  transform: translateY(-2px);
}
.social-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* ===== TEACHERS ===== */
.teachers-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,260px));gap:24px;justify-content:center}
.teacher-card{background:#fff;border-radius:20px;overflow:hidden;text-align:center;box-shadow:0 6px 20px rgba(40,60,50,.10);transition:transform .25s ease,box-shadow .25s ease}
.teacher-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(40,60,50,.18)}
.teacher-photo{aspect-ratio:3/4;overflow:hidden;background:#E4F1E9}
.teacher-photo img{display:block;width:100%;height:100%;object-fit:cover;object-position:center top}
.teacher-info{padding:16px 14px 20px}
.teacher-name{margin:0 0 4px;font-family:'Comfortaa',sans-serif;font-size:1.05rem;color:var(--primary)}
.teacher-role{margin:0;font-size:.95rem;opacity:.75}
@media (max-width:640px){.teachers-grid{grid-template-columns:repeat(2,1fr);gap:12px}.teacher-card{border-radius:14px}.teacher-info{padding:12px 8px 14px}.teacher-name{font-size:.95rem}}
/* ===== PHOTO GALLERY ===== */
.photo-gallery{columns:3 280px;column-gap:16px}
.photo-gallery .ph{position:relative;display:block;width:100%;margin:0 0 16px;padding:0;border:0;background:#fff;border-radius:18px;overflow:hidden;cursor:zoom-in;break-inside:avoid;box-shadow:0 6px 20px rgba(40,60,50,.10);transition:transform .25s ease,box-shadow .25s ease}
.photo-gallery .ph img{display:block;width:100%;height:auto;transition:transform .4s ease}
.photo-gallery .ph:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(40,60,50,.18)}
.photo-gallery .ph:hover img{transform:scale(1.04)}
.photo-gallery .ph:focus-visible{outline:3px solid #F0A93A;outline-offset:2px}
@media (max-width:640px){.photo-gallery{columns:2 140px;column-gap:10px}.photo-gallery .ph{margin-bottom:10px;border-radius:14px}}
.lb{position:fixed;inset:0;z-index:1000;display:none;align-items:center;justify-content:center;background:rgba(20,30,25,.9);padding:20px}
.lb.open{display:flex}
.lb img{max-width:100%;max-height:100%;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.lb button{position:absolute;border:0;background:rgba(255,255,255,.16);color:#fff;width:46px;height:46px;border-radius:50%;font-size:26px;line-height:1;cursor:pointer}
.lb button:hover{background:rgba(255,255,255,.3)}
.lb .x{top:16px;right:16px}.lb .p{left:14px;top:50%;transform:translateY(-50%)}.lb .n{right:14px;top:50%;transform:translateY(-50%)}