:root{ --bg:#ffffff;
  --text:#0b1b2b;
  --muted:#3b556f;

  --line:#d7e6f5;

  --primary:#1d4ed8;  /* blue */
  --teal:#0ea5a8;     /* teal */
  --green:#22c55e;    /* green */

  --card: rgba(255,255,255,.92);
  --glass: rgba(255,255,255,.86);
  --shadow: 0 14px 34px rgba(2,6,23,.12);
  --radius: 18px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg)}
a{color:inherit;text-decoration:none}
.container{max-width:1120px;margin:0 auto;padding:0 18px}

/* Header */
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--line);
}
.header__inner{display:flex;align-items:center;justify-content:space-between;padding:12px 0;gap:16px}
.brand__logo{height:64px;width:auto;display:block}

/* Nav */
.nav{display:flex;gap:18px;align-items:center;font-weight:800}
.nav a{opacity:.92}
.nav a:hover{opacity:1}
.nav .btn{margin-left:6px}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 18px;border-radius:999px;
  background:linear-gradient(135deg,var(--primary),var(--teal));
  color:white;font-weight:900;
  box-shadow: var(--shadow);
  border:1px solid rgba(255,255,255,.15);
}
.btn:hover{filter:brightness(.98)}
.btn--ghost{
  background:rgba(255,255,255,.92);
  color:var(--text);
  border:1px solid var(--line);
  box-shadow:none;
}
.btn--small{padding:10px 14px}

/* Typography helpers */
.kicker{
  display:inline-block;
  font-weight:900;
  color:var(--primary);
  letter-spacing:.02em;
  text-transform:uppercase;
  font-size:12px;
  margin-bottom:8px;
}
.big-lead{
  font-size:18px;
  line-height:1.75;
  color:var(--muted);
  max-width:860px;
}

/* Page hero */
.page-hero{
  position:relative;
  padding:60px 0 34px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute; inset:0;
  background:
    radial-gradient(circle at 18% 22%, rgba(29,78,216,.16), transparent 42%),
    radial-gradient(circle at 80% 25%, rgba(34,197,94,.14), transparent 48%),
    linear-gradient(180deg, rgba(240,248,255,.97), rgba(255,255,255,.94));
  z-index:0;
}
.page-hero__inner{position:relative; z-index:1}
.page-hero h1{margin:0 0 10px;font-size:44px;letter-spacing:-.02em}
.page-hero p{margin:0;max-width:900px;color:var(--muted);line-height:1.75;font-size:16px}
.page-hero__cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}

/* Home hero (logo central) */
.home-hero{
  position:relative;
  padding:72px 0 44px;
  overflow:hidden;
  text-align:center;
}
.home-hero::before{
  content:"";
  position:absolute; inset:0;
  background:
    radial-gradient(circle at 20% 20%, rgba(29,78,216,.18), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(34,197,94,.16), transparent 48%),
    linear-gradient(180deg, rgba(240,248,255,.97), rgba(255,255,255,.94));
  z-index:0;
}
.home-hero__inner{position:relative;z-index:1}
.home-hero__logo{
  width:min(360px, 78vw);
  height:auto;
  display:block;
  margin:0 auto 14px;
  filter: drop-shadow(0 10px 24px rgba(2,6,23,.10));
}
.home-hero__title{margin:0 0 10px;font-size:52px;letter-spacing:-.02em}
.home-hero__tagline{margin:0 0 12px;color:var(--muted);font-weight:900;font-size:18px}
.home-hero__text{margin:0 auto 18px;max-width:860px;color:var(--muted);line-height:1.75}
.home-hero__actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:18px}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
}
.card h3{margin:0 0 6px;font-size:16px}
.card p{margin:0;color:var(--muted);line-height:1.6;font-size:14px}

/* Icon cards (fills space) */
.icon-cards{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
  margin-top:14px;
}
.icon-card{
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:14px;
}
.icon-card h3{margin:0 0 6px;font-size:16px}
.icon-card p{margin:0;color:var(--muted);line-height:1.6}

/* Sections */
.section{padding:52px 0}
.section h2{margin:0 0 10px;font-size:28px;letter-spacing:-.01em}
.section p{margin:0 0 14px;line-height:1.75;color:var(--muted)}

.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:12px}
.panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
  backdrop-filter: blur(10px);
}
.panel h3{margin:0 0 10px}
.panel ul{margin:0;padding-left:18px;color:var(--muted);line-height:1.7}
.panel p{margin:0;color:var(--muted);line-height:1.7}

/* Split layout with visible image */
.split{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:16px;
  align-items:start;
  margin-top:14px;
}
.feature-img{
  background:rgba(255,255,255,.95);
  border:1px solid var(--line);
  border-radius: var(--radius);
  overflow:hidden;
  box-shadow: var(--shadow);
}
.feature-img img{width:100%;height:auto;display:block}
.feature-img .caption{padding:12px 14px;color:var(--muted);font-size:13px;line-height:1.5}

/* Background image system (less washed out) */
.section-bg{position:relative;overflow:hidden}
.section-bg::before{
  content:"";
  position:absolute; inset:0;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  z-index:0;
}
.section-bg::after{
  content:"";
  position:absolute; inset:0;
  background:linear-gradient(
    90deg,
    rgba(255,255,255,.88) 0%,
    rgba(255,255,255,.76) 55%,
    rgba(255,255,255,.62) 100%
  );
  z-index:0;
}
.section-bg .container{position:relative;z-index:1}

/* Background image bindings */
.about-room::before{background-image:url("assets/about-room.png")}
.about-teacher::before{background-image:url("assets/about-teacher.png")}
.approach-mountain::before{background-image:url("assets/approach-mountain.png")}
.contact-staff::before{background-image:url("assets/contact-staff.png")}

/* Colourful section tints (Services page warmth) */
.tint-blue{
  background:linear-gradient(180deg, rgba(29,78,216,.08), rgba(255,255,255,0));
  border-top:1px solid var(--line);
}
.tint-green{
  background:linear-gradient(180deg, rgba(34,197,94,.08), rgba(255,255,255,0));
  border-top:1px solid var(--line);
}
.tint-teal{
  background:linear-gradient(180deg, rgba(14,165,168,.08), rgba(255,255,255,0));
  border-top:1px solid var(--line);
}

/* CTA strip */
.cta{
  background: linear-gradient(135deg, rgba(29,78,216,.12), rgba(34,197,94,.10));
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta__inner{
  display:flex;gap:16px;align-items:center;justify-content:space-between;
  padding:18px 0;
}
.cta__inner p{margin:0;color:var(--muted);line-height:1.6}
.cta__title{margin:0 0 4px;font-size:18px;font-weight:900}
.cta__actions{display:flex;gap:10px;flex-wrap:wrap}

/* Contact */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:12px}
.notice{
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-left:6px solid var(--primary);
  border-radius:var(--radius);
  padding:16px;
}
.form{
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
label{font-weight:800}
input,textarea{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  font:inherit;
}
textarea{min-height:140px;resize:vertical}

/* Footer */
.footer{
  border-top:1px solid var(--line);
  padding:18px 0;
  color:var(--muted);
  font-size:13px;
}
.footer__inner{display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:space-between}
.footer a{text-decoration:underline}

/* Mobile */
@media (max-width: 920px){
  .cards{grid-template-columns:1fr}
  .grid{grid-template-columns:1fr}
  .icon-cards{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .contact-wrap{grid-template-columns:1fr}
  .home-hero__title{font-size:40px}
  .page-hero h1{font-size:36px}
  .cta__inner{flex-direction:column;align-items:flex-start}
}