:root{
  --blue:#1E6EEB;
  --green:#14A44D;
  --yellow:#F4C542;
  --red:#E14C40;
  --navy:#16324F;
  --cream:#F6F3EA;
  --card:#ffffff;
  --muted:#62738A;
  --shadow:0 10px 30px rgba(22,50,79,.12);
  --radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--navy);background:var(--cream)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1120px, 92%);margin-inline:auto}
header{position:sticky;top:0;z-index:50;backdrop-filter:saturate(120%) blur(8px);background:linear-gradient(180deg, rgba(246,243,234,0.9), rgba(246,243,234,0.65));border-bottom:1px solid rgba(22,50,79,.06)}
.navbar{display:flex;align-items:center;justify-content:space-between;padding:.8rem 0}
.brand{display:flex;gap:.7rem;align-items:center;font-weight:800;letter-spacing:.2px}
nav ul{display:flex;gap:1rem;list-style:none;margin:0;padding:0}
nav a{padding:.55rem .8rem;border-radius:12px;font-weight:600;color:var(--navy)}
nav a:hover{background:rgba(30,110,235,.08)}
.btn{display:inline-flex;gap:.6rem;align-items:center;font-weight:700;border-radius:14px;padding:.85rem 1.1rem;box-shadow:var(--shadow);border:0;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--blue),#3BA6F6);color:#fff}
.btn-outline{border:2px solid rgba(22,50,79,.12);background:#fff}
.hero{position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:-10% -10% auto -10%;height:100%;pointer-events:none;
  background:
    radial-gradient(60% 80% at 100% 20%, rgba(30,110,235,.14) 0 60%, transparent 60%),
    radial-gradient(70% 70% at -10% 50%, rgba(20,164,77,.15) 0 60%, transparent 60%),
    conic-gradient(from 220deg at 70% 120%, rgba(244,197,66,.18), transparent 38%),
    linear-gradient(180deg, rgba(255,255,255,.0), rgba(30,110,235,.06));
  mask: linear-gradient(180deg, #000 40%, transparent 95%);
  z-index:-2;
}
.wave{position:absolute;left:-5%;right:-5%;height:220px;border-radius:100% 100% 0 0/60% 60% 0 0;filter:blur(10px);opacity:.55;z-index:-1}
.wave--green{bottom:-60px;background:radial-gradient(80% 120% at 40% 20%, rgba(20,164,77,.18), rgba(20,164,77,.0)), linear-gradient(90deg, rgba(20,164,77,.35), rgba(30,110,235,.2))}
.wave--yellow{bottom:-120px;background:linear-gradient(90deg, rgba(244,197,66,.45), rgba(225,76,64,.25))}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:2rem;align-items:center;padding:3.8rem 0 4.2rem}
h1{font-size:clamp(32px,3.6vw,54px);line-height:1.05;margin:.6rem 0 1rem;font-weight:800}
.lead{font-size:clamp(16px,1.15vw,18px);color:var(--muted);max-width:56ch}
.cta{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.4rem}
.hero-card{background:var(--card);border-radius:var(--radius);padding:1.4rem;box-shadow:var(--shadow)}
.logo-hero{max-width:420px;width:100%;height:auto}
section{padding:64px 0}
.section-title{display:flex;align-items:center;gap:.7rem;margin-bottom:1.2rem}
.section-title .dot{width:12px;height:12px;border-radius:4px;background:var(--blue)}
h2{font-size:clamp(24px,2.4vw,34px);margin:0}
p.muted{color:var(--muted)}
.grid{display:grid;gap:1rem}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);border-radius:18px;padding:1.1rem;box-shadow:var(--shadow)}
.icon{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:#fff}
.i-blue{background:var(--blue)} .i-green{background:var(--green)} .i-yellow{background:var(--yellow)} .i-red{background:var(--red)}
.news-item{display:grid;grid-template-columns:88px 1fr;gap:1rem;align-items:center}
.news-date{font-weight:800;color:var(--blue)}
.news-item time{font-size:.9rem;color:var(--muted)}
footer{background:#0f1f32;color:#cdd6e3;padding:36px 0;margin-top:40px}
footer a{color:#fff;opacity:.9}
@media (max-width: 900px){
  .hero-inner{grid-template-columns:1fr;gap:1.2rem;padding:2.2rem 0 3rem}
  nav ul{display:none}
}

.grid.cols-3{display:grid;gap:1rem;grid-template-columns:repeat(3,1fr)}


/* Responsive grids 3→2→1 */
@media (max-width: 1024px){
  .grid.cols-3{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px){
  .grid.cols-3{ grid-template-columns: 1fr; }
  .card{ padding: 1rem 1rem; border-radius: 16px; }
  .btn{ width: 100%; justify-content: center; }
  .section-title{ margin-bottom: .8rem; }
  .hero-inner{ gap: 1rem; }
}

.messenger{display:flex;align-items:center;gap:.75rem}
.messenger-icon{width:72px;height:72px;object-fit:contain;border-radius:16px;background:#fff;box-shadow:var(--shadow, 0 6px 20px rgba(10,31,68,.08));}

/* Online page: centered layouts */
.messenger{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:140px}
.messenger .messenger-icon{width:72px;height:72px;object-fit:contain;border-radius:16px;background:#fff;box-shadow:var(--shadow, 0 6px 20px rgba(10,31,68,.08));margin-bottom:.4rem}
.card.centered{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:.5rem;min-height:180px}
.res-icon{width:96px;height:96px;object-fit:contain;border-radius:16px;background:#fff;box-shadow:var(--shadow, 0 6px 20px rgba(10,31,68,.08));}

/* About mobile fixes */
@media (max-width: 1024px){
  #about .grid.cols-4{ grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 640px){
  #about .grid.cols-4{ grid-template-columns: 1fr; }
}

/* Online messengers mobile fixes */
@media (max-width: 1024px){
  .grid.cols-4{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px){
  .grid.cols-4{ grid-template-columns: 1fr; }
  .card{ min-width: 0; }
  .grid{ overflow: visible; }
}
.card.messenger{ display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; }
.card.messenger .messenger-link{ font-weight:700; text-decoration:none; color:inherit; margin-top:.35rem; }

.to-top{ position:fixed; right:16px; bottom:16px; background:#2563eb; color:#fff; 
  padding:.6rem .8rem; border-radius:12px; text-decoration:none; box-shadow:0 8px 24px rgba(0,0,0,.15); z-index:60; }
@media (max-width:640px){ .to-top{ bottom:12px; right:12px; } }

/* Online header nav visibility */
header nav ul{ display:flex; gap:1rem; list-style:none; margin:0; padding:0; }
header nav a{ font-weight:600; text-decoration:none; }

/* Header layout tweaks */
header .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
header nav ul{display:flex;gap:12px;list-style:none;margin:0;padding:0}
header nav a{padding:.5rem .75rem;border-radius:10px;text-decoration:none;font-weight:600}

/* Mobile header fixes */
@media (max-width:640px){
  header{padding:.5rem 0;background:rgba(246,243,234,0.96);backdrop-filter:blur(8px)}
  header img{height:40px !important}
}

/* Scroll behavior & top offset */
html{scroll-behavior:smooth}
#top{scroll-margin-top:72px}
.to-top{position:fixed;right:16px;bottom:16px;background:#2563eb;color:#fff;padding:.6rem .8rem;border-radius:12px;text-decoration:none;box-shadow:0 8px 24px rgba(0,0,0,.15);z-index:100}
@media (max-width:640px){.to-top{right:12px;bottom:12px}}

/* About & messengers mobile grids */
@media (max-width:1024px){
  #about .grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .online-messengers .grid.cols-4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  #about .grid.cols-4{grid-template-columns:1fr}
  .online-messengers .grid.cols-4{grid-template-columns:1fr}
  .card{min-width:0}
}
.card.messenger{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}

/* To-top overrides */
.to-top{position:fixed;right:16px;bottom:16px;display:inline-flex;align-items:center;justify-content:center;
  background:#2563eb;color:#fff !important;padding:.65rem .9rem;border-radius:999px;text-decoration:none !important;
  font-weight:700;box-shadow:0 10px 30px rgba(0,0,0,.18);z-index:120;border:none}
.to-top:active{transform:translateY(1px)}
@media (max-width:640px){.to-top{right:12px;bottom:12px}}

/* Smooth scroll */
html{scroll-behavior:smooth}
a#top{position:absolute;top:0;left:0}

/* Header mobile layout */
header .container{display:flex;align-items:center;justify-content:space-between;gap:12px}
header a[aria-label*="Школа"], header .logo{flex:0 0 auto}
header img{height:48px}
nav ul{display:flex;gap:16px;list-style:none;margin:0;padding:0}
@media (max-width:768px){
  header img{height:34px}
  nav ul{overflow-x:auto;white-space:nowrap;gap:12px}
  nav{flex:1 1 auto}
}
header{position:sticky;top:0;background:rgba(246,243,234,.95);backdrop-filter:blur(8px);z-index:100;border-bottom:1px solid rgba(22,50,79,.06)}

/* Online header spacing */
header nav a{padding:.5rem .75rem;border-radius:10px;text-decoration:none;font-weight:700}

/* --- v26 mobile header hardening --- */
header .container{display:flex;align-items:center;justify-content:space-between;gap:12px}
header a[aria-label], header .logo{flex:0 0 auto}
header img{height:48px}
header nav{flex:1 1 auto; min-width:0}
header nav ul{display:flex;align-items:center;gap:16px;list-style:none;margin:0;padding:0}
header nav li{flex:0 0 auto}
header nav a{white-space:nowrap}

@media (max-width:768px){
  header{padding:.4rem 0}
  header img{height:34px}
  header nav ul{gap:10px; overflow-x:auto; -webkit-overflow-scrolling:touch}
  header nav a{font-size:15px;padding:.35rem .55rem}
  .btn-cta, .cta, header nav a.btn{padding:.35rem .6rem;font-size:15px}
}
@media (max-width:420px){
  header img{height:30px}
  header nav a{font-size:14px}
  .btn-cta, .cta, header nav a.btn{font-size:14px}
}
/* ensure content not hidden under sticky header */
:root{--hdr:64px}
@media (max-width:768px){ :root{--hdr:56px} }
main{scroll-margin-top:var(--hdr)}

/* --- v27 mobile header wrap fix --- */
@media (max-width:540px){
  header .container{flex-wrap:wrap; row-gap:8px}
  header a[aria-label], header .logo{flex:0 0 auto}
  header nav{flex-basis:100%; order:2; width:100%}
  header nav ul{justify-content:flex-start; gap:10px; overflow-x:auto; -webkit-overflow-scrolling:touch}
  header nav a{padding:.4rem .6rem}
  .btn, header nav a.btn, .btn-cta{padding:.45rem .7rem}
}
@media (max-width:400px){
  header img{height:28px}
  header nav a{font-size:14px}
  .btn, header nav a.btn, .btn-cta{font-size:14px}
}
/* Extra space under sticky header when it wraps */
@media (max-width:540px){
  main{scroll-margin-top:88px}
}