/* ===== SmartSchool promo — modern, user-friendly ===== */
:root{
  --brand:#4f46e5;
  --brand-2:#2563eb;
  --brand-3:#7c3aed;
  --accent:#10b981;
  --ink:#0f172a;
  --ink-2:#334155;
  --muted:#64748b;
  --line:#e2e8f0;
  --bg:#f8fafc;
  --card:#ffffff;
  --radius:18px;
  --shadow-sm:0 2px 8px rgba(15,23,42,.06);
  --shadow:0 12px 30px rgba(15,23,42,.10);
  --shadow-lg:0 24px 60px rgba(79,70,229,.18);
  --grad:linear-gradient(120deg,#4f46e5,#2563eb 55%,#7c3aed);
  --font:'Segoe UI',system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.container{width:min(1160px,92%);margin-inline:auto}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  background:var(--grad);color:#fff;font-weight:600;border:none;cursor:pointer;
  padding:.72rem 1.5rem;border-radius:999px;font-size:.95rem;letter-spacing:.2px;
  box-shadow:0 8px 20px rgba(79,70,229,.35);
  transition:transform .25s ease,box-shadow .25s ease,filter .25s ease}
.btn:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(79,70,229,.45);filter:brightness(1.06)}
.btn:active{transform:translateY(-1px)}
.btn-sm{padding:.5rem 1.1rem;font-size:.85rem;box-shadow:0 4px 12px rgba(79,70,229,.3)}
.btn-lg{padding:.95rem 2rem;font-size:1.02rem}
.btn-ghost{background:transparent;color:var(--brand);box-shadow:none;border:2px solid rgba(79,70,229,.35)}
.btn-ghost:hover{background:rgba(79,70,229,.08);box-shadow:none}
.btn-light{background:#fff;color:var(--brand);box-shadow:0 8px 24px rgba(0,0,0,.18)}
.btn-light:hover{box-shadow:0 14px 34px rgba(0,0,0,.25)}
.btn-outline-light{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.6);box-shadow:none}
.btn-outline-light:hover{background:rgba(255,255,255,.15);box-shadow:none}

/* ---------- tags & headings ---------- */
.tag{display:inline-block;background:rgba(79,70,229,.10);color:var(--brand);
  font-size:.78rem;font-weight:700;letter-spacing:1.4px;text-transform:uppercase;
  padding:.4rem .95rem;border-radius:999px;margin-bottom:1rem}
.tag-dark{background:rgba(37,99,235,.10);color:var(--brand-2)}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.section-head{text-align:center;max-width:640px;margin:0 auto 3rem}
.section-head h2{font-size:clamp(1.7rem,3.4vw,2.5rem);font-weight:800;letter-spacing:-.5px;margin-bottom:.6rem}
.section-head p{color:var(--muted);font-size:1.03rem}

/* ---------- top bar ---------- */
.topbar{position:fixed;inset:0 0 auto 0;z-index:100;
  background:rgba(255,255,255,.82);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(226,232,240,.8);transition:box-shadow .3s}
.topbar.scrolled{box-shadow:0 6px 24px rgba(15,23,42,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.25rem;letter-spacing:-.4px}
.logo-mark{width:38px;height:38px;border-radius:12px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:1.15rem;font-weight:800;
  box-shadow:0 6px 16px rgba(79,70,229,.4)}
.logo-text em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.menu{display:flex;align-items:center;gap:1.7rem}
.menu a{font-size:.94rem;font-weight:600;color:var(--ink-2);position:relative;transition:color .2s}
.menu a:not(.btn):hover{color:var(--brand)}
.menu a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-6px;height:2.5px;width:0;background:var(--grad);border-radius:2px;transition:width .3s}
.menu a:not(.btn):hover::after{width:100%}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.burger span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{position:relative;padding:150px 0 110px;
  background:radial-gradient(1000px 500px at 12% -10%,rgba(124,58,237,.16),transparent 60%),
             radial-gradient(900px 520px at 88% 10%,rgba(16,185,129,.14),transparent 60%),
             linear-gradient(180deg,#eef2ff 0%,#f8fafc 100%);
  overflow:hidden}
.hero::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(37,99,235,.16),transparent 70%);top:-120px;right:-100px;animation:float 9s ease-in-out infinite}
.hero::after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(16,185,129,.15),transparent 70%);bottom:-80px;left:-90px;animation:float 11s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(28px)}}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center}
.hero-copy h1{font-size:clamp(2.2rem,4.6vw,3.5rem);line-height:1.15;font-weight:800;letter-spacing:-1.5px;margin-bottom:1.1rem}
.hero-copy p{font-size:1.1rem;color:var(--ink-2);max-width:520px;margin-bottom:1.8rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.9rem;margin-bottom:2.4rem}
.hero-stats{display:flex;gap:2.4rem;list-style:none}
.hero-stats li{display:flex;flex-direction:column}
.hero-stats strong{font-size:1.7rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stats span{font-size:.85rem;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.8px}
.hero-art{position:relative}
.hero-art svg{filter:drop-shadow(0 26px 50px rgba(37,99,235,.25));animation:float 7s ease-in-out infinite}
.wave{position:absolute;left:0;right:0;bottom:-1px;z-index:3;line-height:0}
.wave svg{width:100%;height:90px}

/* ---------- features ---------- */
.features{padding:85px 0;background:#fff}
.grid{display:grid;gap:1.6rem}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.7rem 1.5rem;box-shadow:var(--shadow-sm);
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:transparent}
.icon{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;font-size:1.6rem;margin-bottom:1.1rem}
.i-blue{background:#e0e7ff}.i-green{background:#d1fae5}.i-purple{background:#ede9fe}.i-orange{background:#ffedd5}
.i-red{background:#fee2e2}.i-teal{background:#ccfbf1}.i-indigo{background:#e0e7ff}.i-pink{background:#fce7f3}
.card h3{font-size:1.08rem;font-weight:700;margin-bottom:.5rem}
.card p{font-size:.93rem;color:var(--muted)}

/* ---------- benefits ---------- */
.benefits{padding:85px 0;background:linear-gradient(180deg,#f8fafc,#eef2ff)}
.benefit-grid{gap:1.4rem}
.benefit{display:flex;gap:1.2rem;background:#fff;border-radius:var(--radius);
  padding:1.6rem 1.5rem;border:1px solid var(--line);box-shadow:var(--shadow-sm);
  transition:transform .3s,box-shadow .3s}
.benefit:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.bnum{flex:0 0 auto;font-size:1.5rem;font-weight:800;background:var(--grad);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1.2}
.benefit h3{font-size:1.05rem;font-weight:700;margin-bottom:.35rem}
.benefit p{font-size:.93rem;color:var(--muted)}

/* ---------- roles ---------- */
.roles{padding:85px 0;background:#fff}
.role-tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:.7rem;margin-bottom:2.4rem}
.role-tab{border:2px solid var(--line);background:#fff;color:var(--ink-2);
  font-weight:700;font-size:.95rem;padding:.7rem 1.5rem;border-radius:999px;cursor:pointer;
  transition:.25s}
.role-tab:hover{border-color:rgba(79,70,229,.45);color:var(--brand);transform:translateY(-2px)}
.role-tab.active{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 10px 24px rgba(79,70,229,.35)}
.role-panels{position:relative}
.role-panel{display:none;grid-template-columns:.8fr 1.2fr;gap:2.6rem;align-items:center;
  background:linear-gradient(135deg,#f8fafc,#eef2ff);
  border:1px solid var(--line);border-radius:24px;padding:2.4rem;
  animation:fadeUp .45s ease both}
.role-panel.active{display:grid}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
.role-art svg{border-radius:16px;box-shadow:var(--shadow)}
.role-list{list-style:none;display:grid;gap:1rem}
.role-list li{position:relative;padding-left:2.3rem;font-size:.98rem;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:.95rem 1.2rem .95rem 2.6rem;
  box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.role-list li:hover{transform:translateX(6px);box-shadow:var(--shadow)}
.role-list li::before{content:"✔";position:absolute;left:1rem;top:.95rem;
  width:22px;height:22px;border-radius:50%;background:var(--grad);color:#fff;
  font-size:.72rem;display:grid;place-items:center;font-weight:800}
.role-list strong{color:var(--ink)}

/* ---------- CTA ---------- */
.cta{padding:80px 0;background:radial-gradient(700px 320px at 20% 0%,rgba(255,255,255,.14),transparent),
  var(--grad);color:#fff;text-align:center}
.cta-inner h2{font-size:clamp(1.7rem,3.4vw,2.5rem);font-weight:800;margin-bottom:.8rem;letter-spacing:-.5px}
.cta-inner p{max-width:640px;margin:0 auto 2rem;opacity:.92;font-size:1.05rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}

/* ---------- footer ---------- */
.footer{background:#0b1220;color:#cbd5e1;padding:60px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2.4rem;padding-bottom:2.4rem;
  border-bottom:1px solid rgba(148,163,184,.18)}
.logo-light .logo-text{color:#fff}
.foot-tag{margin-top:1rem;font-size:.92rem;color:#94a3b8;line-height:1.7}
.footer h4{color:#fff;font-size:.95rem;margin-bottom:1rem;letter-spacing:.4px}
.footer a{display:block;font-size:.92rem;color:#94a3b8;margin-bottom:.55rem;transition:color .2s,transform .2s}
.footer a:hover{color:#a5b4fc;transform:translateX(4px)}

/* ---------- visitor counter ---------- */
.visitor-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.2rem;padding-top:26px}
.visitor-box{display:flex;align-items:center;gap:1rem;
  background:linear-gradient(120deg,rgba(79,70,229,.22),rgba(37,99,235,.18));
  border:1px solid rgba(165,180,252,.28);border-radius:16px;padding:.9rem 1.4rem}
.visitor-box .eye{font-size:1.6rem;animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.15)}}
.visitor-box small{display:block;font-size:.74rem;text-transform:uppercase;letter-spacing:1.2px;color:#94a3b8}
.visitor-box strong{font-size:1.55rem;font-weight:800;color:#fff;line-height:1.2;
  text-shadow:0 2px 10px rgba(79,70,229,.6)}
.vnote{display:block;font-size:.72rem;color:#a5b4fc}
.copyright{font-size:.85rem;color:#94a3b8}

/* ---------- back to top ---------- */
.to-top{position:fixed;right:22px;bottom:22px;z-index:90;width:46px;height:46px;border-radius:50%;
  border:0;background:var(--grad);color:#fff;font-size:1.15rem;cursor:pointer;
  box-shadow:0 10px 26px rgba(79,70,229,.45);opacity:0;pointer-events:none;transform:translateY(14px);
  transition:.3s}
.to-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
.to-top:hover{filter:brightness(1.1);transform:translateY(-4px)}

/* ---------- reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ---------- responsive ---------- */
@media(max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .hero-grid{grid-template-columns:1fr;text-align:center}
  .hero-copy p,.hero-actions,.hero-stats{margin-inline:auto;justify-content:center}
  .hero-art{max-width:520px;margin-inline:auto}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .burger{display:flex}
  .menu{position:fixed;top:70px;left:0;right:0;flex-direction:column;gap:0;
    background:#fff;box-shadow:0 18px 40px rgba(15,23,42,.14);
    max-height:0;overflow:hidden;transition:max-height .4s ease}
  .menu.open{max-height:420px}
  .menu a{width:100%;padding:1rem 6%;border-bottom:1px solid var(--line);text-align:left}
  .menu a::after{display:none}
  .menu .btn{margin:1rem 6%;justify-content:center;text-align:center;border-bottom:0}
  .grid-2,.role-panel.active{grid-template-columns:1fr}
  .role-panel{padding:1.6rem}
  .role-art{max-width:300px;margin-inline:auto}
  .hero{padding-top:120px}
  .visitor-bar{flex-direction:column;text-align:center}
}
@media(max-width:520px){
  .grid-4{grid-template-columns:1fr}
  .hero-stats{gap:1.4rem}
  .hero-copy h1{letter-spacing:-.8px}
  .footer-grid{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
}

/* ---------- Sinhala language ---------- */
html[lang="si"] body,
html[lang="si"] .btn,
html[lang="si"] .role-tab {
  font-family: 'Noto Sans Sinhala','Iskoola Pota','Segoe UI',system-ui,sans-serif;
}
html[lang="si"] .section-head h2,
html[lang="si"] .hero-copy h1,
html[lang="si"] .cta-inner h2 { letter-spacing: 0; line-height: 1.45; }
html[lang="si"] .visitor-box small { letter-spacing: .4px; }
.lang-btn{border:2px solid rgba(79,70,229,.4);background:#fff;color:var(--brand);
  font-weight:700;font-size:.85rem;padding:.42rem 1rem;border-radius:999px;cursor:pointer;
  transition:.25s;line-height:1.4}
.lang-btn:hover{background:var(--brand);color:#fff;border-color:var(--brand);
  box-shadow:0 6px 16px rgba(79,70,229,.35);transform:translateY(-2px)}

/* ---------- gallery ---------- */
.gallery{padding:85px 0;background:linear-gradient(180deg,#eef2ff,#f8fafc)}
.gallery .section-head code{background:rgba(79,70,229,.10);color:var(--brand);
  padding:.1rem .5rem;border-radius:6px;font-size:.9em}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.6rem}
.gal-card{position:relative;margin:0;background:#fff;border-radius:var(--radius);
  overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);cursor:pointer;
  transition:transform .3s ease,box-shadow .3s ease}
.gal-card:hover,.gal-card:focus-visible{transform:translateY(-8px);
  box-shadow:var(--shadow-lg);outline:none}
.gal-card img{width:100%;height:230px;object-fit:cover;display:block;
  transition:transform .5s ease}
.gal-card:hover img{transform:scale(1.06)}
.gal-card figcaption{position:absolute;left:0;right:0;bottom:0;
  padding:1.9rem 1rem .7rem;color:#fff;font-weight:700;font-size:.92rem;letter-spacing:.5px;
  background:linear-gradient(to top,rgba(2,6,23,.82),transparent);
  pointer-events:none}
.gallery-empty{text-align:center;color:var(--muted);background:#fff;
  border:2px dashed var(--line);border-radius:var(--radius);padding:2.4rem 1.4rem;font-size:.98rem}

/* ---------- lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:200;background:rgba(2,6,23,.92);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:5vh 5vw;animation:lbfade .3s ease}
.lightbox[hidden]{display:none}
@keyframes lbfade{from{opacity:0}to{opacity:1}}
.lightbox img{max-width:100%;max-height:78vh;border-radius:14px;
  box-shadow:0 30px 80px rgba(0,0,0,.6);object-fit:contain;animation:lbpop .35s ease}
@keyframes lbpop{from{transform:scale(.94);opacity:0}to{transform:scale(1);opacity:1}}
.lb-cap{margin-top:1rem;color:#e2e8f0;font-weight:700;letter-spacing:1px;font-size:1rem}
.lb-close{position:absolute;top:18px;right:26px;width:46px;height:46px;border-radius:50%;
  border:0;background:rgba(255,255,255,.14);color:#fff;font-size:1.7rem;cursor:pointer;
  transition:.25s;line-height:1}
.lb-close:hover{background:#ef4444;transform:rotate(90deg)}

/* ---------- gallery responsive ---------- */
@media(max-width:1024px){ .gallery-grid{grid-template-columns:repeat(2,1fr)} }
@media(max-width:600px){
  .gallery-grid{grid-template-columns:1fr}
  .gal-card img{height:210px}
}

/* ---------- floating WhatsApp chat icon (right side) ---------- */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:96;
  display:inline-flex;align-items:center;justify-content:center;
  width:58px;height:58px;border-radius:50%;
  background:#25d366;color:#fff;
  box-shadow:0 12px 30px rgba(37,211,102,.45);
  transition:transform .28s ease,box-shadow .28s ease,background .28s ease;
  animation:wabob 3s ease-in-out infinite}
.wa-float svg{width:30px;height:30px;fill:#fff;flex:0 0 auto}
.wa-float:hover{transform:translateY(-4px) scale(1.03);background:#1eb955;
  box-shadow:0 18px 40px rgba(37,211,102,.6);animation:none}
.wa-float:active{transform:translateY(-1px) scale(1)}
@keyframes wabob{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
.to-top{bottom:88px}
@media(max-width:520px){
  .wa-float{right:14px;bottom:14px;width:52px;height:52px}
  .wa-float svg{width:27px;height:27px}
  .to-top{right:14px;bottom:76px}
}

/* ---------- scroll contact modal (center of page) ---------- */
body.cf-lock{overflow:hidden}
.cf-overlay{
  position:fixed;inset:0;z-index:98;
  background:rgba(2,6,23,.72);backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;padding:1.2rem;
  animation:cfin .3s ease;
}
.cf-overlay[hidden]{display:none}
.cf-modal{
  position:relative;width:100%;max-width:440px;
  background:linear-gradient(150deg,#1e1b4b 0%,#152238 55%,#0f172a 100%);
  border:1px solid rgba(129,140,248,.35);
  border-radius:20px;padding:2.2rem 1.8rem 1.8rem;
  box-shadow:0 30px 70px rgba(0,0,0,.5);
  animation:cfpop .35s cubic-bezier(.2,.9,.3,1.2);
}
@keyframes cfin{from{opacity:0}to{opacity:1}}
@keyframes cfpop{from{opacity:0;transform:translateY(24px) scale(.96)}to{opacity:1;transform:none}}
.cf-close{
  position:absolute;top:12px;right:12px;
  width:34px;height:34px;border-radius:50%;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);
  color:#cbd5e1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s,color .2s,transform .2s;
}
.cf-close svg{width:16px;height:16px;fill:currentColor}
.cf-close:hover{background:rgba(239,68,68,.25);color:#fff;transform:rotate(90deg)}
.cf-title{margin:0 0 .4rem;font-size:1.35rem;font-weight:800;color:#fff;text-align:center}
.cf-sub{margin:0 0 1.3rem;font-size:.88rem;color:#94a3b8;text-align:center;line-height:1.55}
#contactForm{display:flex;flex-direction:column;gap:.8rem}
#contactForm input{
  width:100%;box-sizing:border-box;
  background:rgba(2,6,23,.5);
  border:1px solid rgba(148,163,184,.35);
  color:#fff;border-radius:12px;
  padding:.8rem 1rem;font-size:.95rem;outline:none;
  transition:border .25s,box-shadow .25s;
}
#contactForm input::placeholder{color:#94a3b8}
#contactForm input:focus{border-color:#818cf8;box-shadow:0 0 0 3px rgba(129,140,248,.25)}
.cf-send{
  margin-top:.35rem;display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  width:100%;padding:.85rem 1.2rem;font-size:1rem;font-weight:700;
  border:none;border-radius:12px;cursor:pointer;color:#fff;
  background:linear-gradient(120deg,#6366f1,#3b82f6);
  box-shadow:0 10px 26px rgba(99,102,241,.4);
  transition:transform .2s,box-shadow .2s,filter .2s;
}
.cf-send svg{width:19px;height:19px;fill:currentColor;flex:0 0 auto}
.cf-send:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(99,102,241,.55);filter:brightness(1.08)}
.cf-send:active{transform:translateY(0)}
.cf-msg{margin:.9rem 0 0;font-size:.88rem;font-weight:600;text-align:center}
.cf-msg.ok{color:#6ee7b7}
.cf-msg.err{color:#fca5a5}
@media(max-width:480px){
  .cf-modal{padding:2rem 1.2rem 1.4rem;border-radius:16px}
  .cf-title{font-size:1.18rem}
}