/* Base styles */
:root{
  --primary:#0d47a1;
  --primary-dark:#0a3a82;
  --primary-light:#1565c0;
  --secondary:#1976d2;
  --accent:#f59e0b;
  --success:#10b981;
  --bg:#ffffff;
  --bg-light:#f8fafc;
  --text:#1f2937;
  --text-light:#374151;
  --muted:#6b7280;
  --light:#f3f4f6;
  --border:#e5e7eb;
  --shadow-sm:0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg:0 10px 30px rgba(0,0,0,0.12);
  --shadow-xl:0 20px 50px rgba(0,0,0,0.15);
  --radius-sm:8px;
  --radius-md:12px;
  --radius-lg:16px;
  --transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
html,body{margin:0;padding:0;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.6;overflow-x:hidden;width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.container.full{max-width:100%;padding:0}
h1,h2,h3,h4,h5,h6{line-height:1.3;font-weight:700;color:var(--text);word-wrap:break-word}
a{transition:var(--transition)}
.muted{color:var(--muted);font-size:0.9rem}
img,video,iframe{max-width:100%;height:auto}

/* Topbar */
.topbar{position:sticky;top:0;background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);z-index:100;box-shadow:var(--shadow-sm)}
.nav-container{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;position:relative}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text);font-weight:700;font-size:1.1rem;transition:var(--transition)}
.brand:hover{color:var(--primary)}
.logo{height:48px;transition:var(--transition)}
.logo:hover{transform:scale(1.05)}
.logo.small{height:40px}
.navbar{display:flex;align-items:center;gap:6px}
.nav-link{padding:10px 14px;border-radius:var(--radius-sm);text-decoration:none;color:var(--text);font-weight:500;font-size:0.95rem;position:relative;transition:var(--transition)}
.nav-link:hover{background:var(--light);color:var(--primary);transform:translateY(-1px)}
.nav-link.active{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:var(--shadow-md)}
.lang-toggle .btn{padding:8px 12px;border-radius:var(--radius-sm);text-decoration:none;border:1px solid var(--secondary);color:var(--secondary)}
.btn{padding:10px 20px;border-radius:var(--radius-sm);text-decoration:none;font-weight:600;cursor:pointer;border:none;transition:var(--transition);display:inline-block}
.btn.primary{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:var(--shadow-md)}
.btn.primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.btn.secondary{background:#fff;color:var(--secondary);border:2px solid var(--secondary)}
.btn.secondary:hover{background:var(--secondary);color:#fff}

/* Dropdown */
.dropdown{position:relative;display:inline-block}
.dropbtn{background:transparent;border:1px solid transparent;padding:10px 14px;border-radius:var(--radius-sm);cursor:pointer;font-weight:500;font-size:0.95rem;color:var(--text);transition:var(--transition)}
.dropbtn:hover{background:var(--light);color:var(--primary);transform:translateY(-1px)}
.dropbtn.active{background:linear-gradient(135deg,var(--primary),var(--primary-light));color:#fff;box-shadow:var(--shadow-md)}
.dropdown-content{display:none;position:absolute;background:#fff;min-width:220px;box-shadow:var(--shadow-lg);border-radius:var(--radius-md);padding:8px;margin-top:8px;border:1px solid var(--border);animation:fadeIn 0.2s ease-out}
.dropdown:hover .dropdown-content{display:block}
.dropdown.open .dropdown-content{display:block}
.dropdown-content a{display:block;padding:12px 16px;border-radius:var(--radius-sm);color:var(--text);text-decoration:none;transition:var(--transition)}
.dropdown-content a:hover{background:var(--light);color:var(--primary);transform:translateX(4px)}
@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}

/* Hero */
.hero{background:linear-gradient(135deg,#0d47a1 0%,#1976d2 50%,#60a5fa 100%);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");opacity:0.4}
.hero .container{position:relative;z-index:1}
.hero h1{font-size:3rem;margin:0 0 16px;font-weight:800;text-shadow:0 2px 10px rgba(0,0,0,0.2);animation:slideInUp 0.6s ease-out}
.hero p{margin:0;font-size:1.25rem;opacity:0.95;max-width:700px;animation:slideInUp 0.8s ease-out}
@keyframes slideInUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}

/* Grid & cards */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition);box-shadow:var(--shadow-sm)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-light)}
.card .content{padding:24px}
.card h3{margin:0 0 12px;font-size:1.25rem;color:var(--text)}
.card p{margin:8px 0 0;color:var(--muted);line-height:1.7}
.list{display:flex;flex-direction:column;gap:12px}
.list-item{padding:16px;border:1px solid var(--border);border-radius:var(--radius-md);transition:var(--transition);background:#fff}
.list-item:hover{border-color:var(--primary);box-shadow:var(--shadow-sm);transform:translateX(4px)}
.list-item a{color:var(--primary);text-decoration:none;font-weight:600;transition:var(--transition)}
.list-item a:hover{color:var(--primary-dark)}

/* Sections */
.section{padding:60px 0}
.section h2{margin:0 0 32px;font-size:2.25rem;color:var(--text);position:relative;padding-bottom:16px}
.section h2::after{content:'';position:absolute;bottom:0;left:0;width:80px;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent));border-radius:2px}
.section h3{margin:24px 0 16px;font-size:1.5rem;color:var(--text)}

/* Media embed (flyer) */
.media-embed{border:1px solid #e5e7eb;border-radius:12px;overflow:hidden;background:#0f172a}
.media-embed iframe{width:100%;height:70vh;border:0;display:block;background:#0f172a}
.media-embed img{width:100%;height:auto;display:block}

/* Footer */
.footer{background:linear-gradient(135deg,#0a1929 0%,#0b1e3a 100%);color:#cbd5e1;padding:48px 0 24px;margin-top:60px;border-top:1px solid rgba(255,255,255,0.1)}
.footer h4{color:#fff;font-size:1.1rem;margin:0 0 16px;font-weight:700}
.footer p{margin:8px 0;line-height:1.8}
.footer ul{list-style:none;padding:0;margin:0}
.footer ul li{margin:8px 0}
.footer a{color:#93c5fd;text-decoration:none;transition:var(--transition)}
.footer a:hover{color:#60a5fa;text-decoration:underline}
.footer-grid{display:grid;gap:32px;grid-template-columns:2fr 1fr 1fr;margin-bottom:24px}
.footer .logo.small{margin-bottom:12px}

/* Flyer full-screen page */
body.page-flyer-fullscreen .topbar,
body.page-flyer-fullscreen .footer,
body.page-flyer-fullscreen .floating-cta,
body.page-flyer-fullscreen .floating-cta.call{display:none !important}
body.page-flyer-fullscreen main{margin:0;padding:0}
body.page-flyer-fullscreen .section{padding:0}
body.page-flyer-fullscreen .container.full{max-width:100%;padding:0}
body.page-flyer-fullscreen .card{border:none;border-radius:0}
body.page-flyer-fullscreen .card .content{padding:0}
body.page-flyer-fullscreen h2,
body.page-flyer-fullscreen .flyer-download{display:none}

/* Floating buttons */
.floating-cta{position:fixed;right:20px;bottom:20px;background:#25D366;color:#fff;border-radius:50%;width:60px;height:60px;display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:12px;font-weight:700;box-shadow:var(--shadow-xl);transition:var(--transition);z-index:90;animation:pulse 2s infinite}
.floating-cta:hover{transform:scale(1.1);box-shadow:0 25px 60px rgba(37,211,102,0.4)}
.floating-cta.call{right:90px;background:#0ea5e9}
.floating-cta.call:hover{box-shadow:0 25px 60px rgba(14,165,233,0.4)}
@keyframes pulse{0%,100%{box-shadow:var(--shadow-xl)}50%{box-shadow:0 20px 50px rgba(0,0,0,0.25)}}

/* Forms */
input,select,textarea{width:100%;padding:12px 16px;border:2px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;transition:var(--transition);font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(13,71,161,0.1)}
label{font-weight:600;display:block;margin-bottom:8px;color:var(--text)}
.form-row{display:grid;gap:16px;grid-template-columns:1fr 1fr;margin-bottom:16px}
.form-actions{display:flex;gap:12px;margin-top:24px}

/* Gallery */
.gallery{display:grid;gap:16px;grid-template-columns:repeat(3,1fr)}
.gallery img{width:100%;height:240px;object-fit:cover;border-radius:var(--radius-md);border:1px solid var(--border);display:block;transition:var(--transition);cursor:pointer}
.gallery img:hover{transform:scale(1.03);box-shadow:var(--shadow-lg)}
.gallery iframe{width:100%;height:240px;border-radius:var(--radius-md);border:1px solid var(--border);transition:var(--transition)}
.gallery iframe:hover{box-shadow:var(--shadow-md)}

/* Teachers gallery */
.teachers-section{background:linear-gradient(180deg,#f8fafc, #ffffff)}
.level-tabs{display:flex;gap:8px;margin:8px 0 12px;flex-wrap:wrap}
.level-tabs .tab{padding:8px 12px;border:1px solid #e5e7eb;background:#fff;border-radius:10px;cursor:pointer;transition:all .15s}
.level-tabs .tab:hover{border-color:#cbd5e1}
.level-tabs .tab.active{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(13,71,161,.2)}
.teacher-actions{margin:6px 0 18px}
.teacher-actions input{max-width:420px;border-radius:12px;border:1px solid #e5e7eb;padding:10px 12px}
.teacher-grid{display:grid;gap:18px;grid-template-columns:repeat(4,1fr)}
.teacher-card{position:relative;background:#fff;border:1px solid #e5e7eb;border-radius:14px;overflow:hidden;transition:transform .25s, box-shadow .25s}
.teacher-card:hover{transform:translateY(-4px);box-shadow:0 14px 40px rgba(0,0,0,.08)}
.teacher-card .photo{position:relative;aspect-ratio:3/4;background:#f1f5f9}
.teacher-card .photo img{width:100%;height:100%;object-fit:cover;display:block}
.teacher-card .overlay{position:absolute;left:0;right:0;bottom:0;padding:12px;background:linear-gradient(0deg, rgba(0,0,0,.55), rgba(0,0,0,0));color:#fff}
.teacher-card .name{font-weight:700}
.teacher-card .position{font-size:13px;opacity:.9}
.teacher-card .badge{position:absolute;top:10px;left:10px;background:#e0f2fe;color:#0369a1;border-radius:20px;padding:4px 8px;font-size:12px}
/* Lightbox */
.lightbox{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:1000}
.lightbox.open{display:flex}
.lightbox-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.6)}
.lightbox-content{position:relative;background:#000;border-radius:12px;overflow:hidden;max-width:min(90vw,900px)}
.lightbox-content img{display:block;width:100%;height:auto}
.lightbox-close{position:absolute;top:6px;right:8px;background:rgba(255,255,255,.9);border:none;border-radius:50%;width:32px;height:32px;font-size:20px;cursor:pointer}
.lightbox-caption{position:absolute;left:0;right:0;bottom:0;padding:10px 14px;background:linear-gradient(0deg, rgba(0,0,0,.7), rgba(0,0,0,0));color:#fff}

/* Flyer Modal */
.flyer-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:2000;opacity:0;transition:opacity 0.3s ease}
.flyer-modal.open{display:flex;opacity:1}
.flyer-modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,0.85);backdrop-filter:blur(4px)}
.flyer-modal-content{position:relative;background:#fff;border-radius:var(--radius-lg);overflow:hidden;max-width:min(90vw,800px);max-height:90vh;display:flex;flex-direction:column;box-shadow:var(--shadow-xl);animation:modalSlideIn 0.4s ease-out}
.flyer-modal-close{position:absolute;top:12px;right:12px;background:rgba(255,255,255,0.95);border:none;border-radius:50%;width:40px;height:40px;font-size:28px;cursor:pointer;z-index:10;transition:var(--transition);box-shadow:var(--shadow-md);line-height:1;color:var(--text)}
.flyer-modal-close:hover{background:#fff;transform:scale(1.1);color:var(--primary)}
.flyer-modal-body{flex:1;overflow:auto;padding:20px;background:#f8fafc}
.flyer-modal-body iframe{width:100%;height:70vh;border:0;display:block;border-radius:var(--radius-sm)}
.flyer-modal-body img{width:100%;height:auto;display:block;border-radius:var(--radius-sm)}
.flyer-modal-footer{padding:20px;background:#fff;border-top:1px solid var(--border);display:flex;gap:12px;justify-content:center}
@keyframes modalSlideIn{from{opacity:0;transform:scale(0.9) translateY(-20px)}to{opacity:1;transform:scale(1) translateY(0)}}

/* Instagram Section */
.instagram-section{padding:60px 0}
.instagram-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;padding:24px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--border)}
.instagram-profile{display:flex;align-items:center;gap:16px}
.instagram-avatar{width:80px;height:80px;border-radius:50%;border:3px solid var(--primary);object-fit:cover}
.instagram-info h3{margin:0 0 4px;font-size:1.5rem;color:var(--text)}
.instagram-info p{margin:4px 0;font-size:0.95rem}
.instagram-stats{color:var(--muted);font-size:0.9rem}
.instagram-follow{display:inline-flex;align-items:center;white-space:nowrap}
.instagram-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.instagram-post{position:relative;aspect-ratio:1;overflow:hidden;border-radius:var(--radius-md);cursor:pointer;transition:var(--transition)}
.instagram-post img{width:100%;height:100%;object-fit:cover;display:block;transition:var(--transition)}
.instagram-post:hover img{transform:scale(1.05)}
.instagram-overlay{position:absolute;inset:0;background:rgba(0,0,0,0.6);display:flex;align-items:center;justify-content:center;gap:24px;opacity:0;transition:var(--transition);color:#fff;font-weight:600;font-size:1.1rem}
.instagram-post:hover .instagram-overlay{opacity:1}
.instagram-overlay span{display:flex;align-items:center;gap:6px}

/* Mobile Menu */
.mobile-menu-toggle{
  display:none;
  background:none;
  border:none;
  font-size:1.8rem;
  cursor:pointer;
  padding:8px;
  color:var(--text);
  line-height:1;
  z-index:101;
}
.mobile-menu-toggle:hover{color:var(--primary)}
.mobile-menu-toggle:focus{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}

/* Responsive */
@media (max-width: 900px){
  .grid-3{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .gallery img, .gallery iframe{height:220px}
  .container{max-width:100%;padding:0 20px;overflow-x:hidden}
  .teacher-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:2.25rem;word-wrap:break-word}
  .hero p{font-size:1.1rem;word-wrap:break-word}
  .section{padding:48px 0}
  .section h2{font-size:1.875rem;word-wrap:break-word}
  .card{margin:0;width:100%}
  .card .content{padding:20px}
  table{display:block;overflow-x:auto;white-space:nowrap}
  .instagram-header{flex-direction:column;gap:20px;text-align:center}
  .instagram-profile{flex-direction:column;text-align:center}
  .instagram-grid{grid-template-columns:repeat(2,1fr)}
  .flyer-modal-content{max-width:95vw}
  .flyer-modal-body{padding:16px}
  .flyer-modal-footer{flex-direction:column}
  .flyer-modal-footer .btn{width:100%}
}
@media (max-width: 768px){
  /* Show hamburger, hide desktop navbar */
  .mobile-menu-toggle{
    display:block !important;
  }
  .navbar{
    display:none !important;
    position:absolute;
    top:100%;
    left:0;
    right:0;
    background:rgba(255,255,255,0.98);
    backdrop-filter:blur(10px);
    flex-direction:column;
    align-items:stretch;
    padding:16px;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-lg);
    animation:slideDown 0.3s ease-out;
    z-index:99;
  }
  .navbar.open{
    display:flex !important;
  }
  .navbar .nav-link{
    padding:14px 20px;
    width:100%;
    text-align:left;
    border-radius:var(--radius-sm);
    margin-bottom:4px;
    transform:none;
  }
  .navbar .nav-link:hover{
    background:var(--light);
    transform:none;
  }
  .navbar .nav-link.active{
    background:var(--primary);
    color:#fff;
  }
  .dropdown{
    width:100%;
  }
  .dropbtn{
    width:100%;
    text-align:left;
    padding:14px 20px;
    border-radius:var(--radius-sm);
    margin-bottom:4px;
    transform:none;
  }
  .dropbtn:hover{
    background:var(--light);
    transform:none;
  }
  .dropbtn.active{
    background:var(--primary);
    color:#fff;
  }
  .dropdown-content{
    position:static;
    box-shadow:none;
    border:none;
    padding-left:20px;
    margin-top:4px;
    background:transparent;
  }
  .dropdown-content a{
    padding:10px 16px;
    margin-bottom:4px;
    transform:none;
  }
  .dropdown-content a:hover{
    transform:none;
  }
  .nav-container{
    position:relative;
  }
  .hero{
    padding:60px 0;
  }
  .hero h1{
    font-size:2rem;
  }
  .hero p{
    font-size:1rem;
  }
  .floating-cta{
    width:56px;
    height:56px;
    font-size:11px;
    right:16px;
    bottom:16px;
  }
  .floating-cta.call{
    right:80px;
  }
  @keyframes slideDown{
    from{
      opacity:0;
      transform:translateY(-10px);
    }
    to{
      opacity:1;
      transform:translateY(0);
    }
  }
}
@media (max-width: 520px){
  .container{padding:0 16px;overflow-x:hidden}
  .gallery{grid-template-columns:1fr}
  .gallery img, .gallery iframe{height:200px}
  .teacher-grid{grid-template-columns:1fr}
  .hero{padding:40px 0}
  .hero h1{font-size:1.75rem;word-wrap:break-word;line-height:1.2}
  .hero p{font-size:1rem;word-wrap:break-word}
  .hero .btn{display:block;width:100%;margin:8px 0;text-align:center}
  .section{padding:32px 0}
  .section h2{font-size:1.5rem;word-wrap:break-word}
  .section h3{font-size:1.25rem}
  .card .content{padding:16px}
  .card h3{font-size:1.1rem}
  .card p{font-size:0.9rem}
  .btn{padding:10px 16px;font-size:0.9rem;width:auto}
  .btn.primary, .btn.secondary{display:inline-block;margin:4px}
  .floating-cta{width:52px;height:52px;font-size:10px}
  .floating-cta.call{display:none}
  img{max-width:100%;height:auto}
  .grid{gap:16px}
  .brand span{font-size:0.9rem}
  .logo{height:40px}
  .list-item{padding:12px}
  p{word-wrap:break-word;overflow-wrap:break-word}
  .instagram-grid{grid-template-columns:1fr;gap:12px}
  .instagram-avatar{width:60px;height:60px}
  .instagram-info h3{font-size:1.2rem}
  .instagram-header{padding:16px}
  .flyer-modal-body iframe{height:50vh}
  .flyer-modal-close{width:36px;height:36px;font-size:24px;top:8px;right:8px}
}