/* ===== Language Teaching Hub — Design System ===== */
:root {
  --blue: #0088D0;
  --blue-dark: #006EA8;
  --teal: #3AB6A0;
  --teal-dark: #2C9585;
  --ink: #0E2A3D;
  --slate: #4B5C6B;
  --line: #E1EBF1;
  --bg: #ffffff;
  --bg-soft: #F3F9FC;
  --bg-tint: #E2F2FB;
  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(15,42,63,.08);
  --shadow: 0 8px 30px rgba(15,42,63,.10);
  --shadow-lg: 0 20px 50px rgba(15,42,63,.14);
  --radius: 14px;
  --maxw: 1160px;
  --font: "Segoe UI", Roboto, -apple-system, BlinkMacSystemFont, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { line-height: 1.15; color: var(--ink); margin: 0 0 .5em; font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; color: var(--slate); }
a { color: var(--blue); text-decoration: none; }
img, svg { max-width: 100%; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.section { padding: 76px 0; }
.section-soft { background: var(--bg-soft); }
.center { text-align: center; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--teal); margin-bottom: .6rem;
}
.lead { font-size: 1.12rem; color: var(--slate); max-width: 620px; }
.center .lead { margin-left: auto; margin-right: auto; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-weight: 700; font-size: 1rem; padding: 13px 26px; border-radius: 10px;
  cursor: pointer; border: 2px solid transparent; transition: .18s ease; white-space: nowrap;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-accent { background: var(--teal); color: #fff; }
.btn-accent:hover { background: var(--teal-dark); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }

/* ===== Top bar ===== */
.topbar { background: var(--ink); color: #cfe3ee; font-size: .86rem; }
.topbar .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-top: 8px; padding-bottom: 8px; flex-wrap: wrap; }
.topbar a { color: #cfe3ee; }
.topbar a:hover { color: #fff; }
.topbar .tb-right { display: flex; gap: 20px; align-items: center; }

/* ===== Header ===== */
.header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.96); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.header .container { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand svg { width: 46px; height: 46px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-weight: 800; font-size: 1.12rem; color: var(--blue); letter-spacing: .01em; }
.brand-tag { font-size: .62rem; letter-spacing: .13em; text-transform: uppercase; color: var(--teal); font-weight: 700; }
.nav { display: flex; align-items: center; gap: 26px; }
.nav a.navlink { color: var(--ink); font-weight: 600; font-size: .96rem; }
.nav a.navlink:hover { color: var(--blue); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.menu-toggle { display: none; background: none; border: 0; cursor: pointer; font-size: 1.7rem; color: var(--ink); }

/* ===== Hero ===== */
.hero { background: linear-gradient(155deg, #EAF6FC 0%, #DCF0F9 55%, #DBF2ED 100%); position: relative; overflow: hidden; }
.hero .container { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; padding-top: 64px; padding-bottom: 64px; }
.hero h1 { font-size: clamp(2.1rem, 4.6vw, 3.25rem); font-weight: 800; }
.hero h1 .hl { color: var(--blue); }
.hero h1 .hl2 { color: var(--teal); }
.hero p.sub { font-size: 1.15rem; color: var(--slate); max-width: 540px; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.chip { background: #fff; border: 1px solid var(--line); color: var(--ink); font-weight: 600; font-size: .88rem; padding: 8px 14px; border-radius: 30px; box-shadow: var(--shadow-sm); }
.chip b { color: var(--teal); }

/* ===== Lead form card ===== */
.form-card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 28px; border-top: 5px solid var(--teal); }
.form-card h3 { font-size: 1.35rem; margin-bottom: .2rem; }
.form-card .fc-sub { font-size: .92rem; color: var(--slate); margin-bottom: 18px; }
.field { margin-bottom: 14px; }
.field label { display: block; font-size: .82rem; font-weight: 700; color: var(--ink); margin-bottom: 5px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1.5px solid var(--line); border-radius: 9px;
  font-size: 1rem; font-family: inherit; color: var(--ink); background: #fff; transition: .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(27,156,216,.15); }
.form-note { font-size: .78rem; color: var(--slate); text-align: center; margin-top: 12px; }

/* ===== Stats bar ===== */
.stats { background: var(--ink); color: #fff; }
.stats .container { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 40px 22px; text-align: center; }
.stat .num { font-size: 2.3rem; font-weight: 800; color: #fff; }
.stat .num span { color: var(--teal); }
.stat .lbl { color: #a9c4d4; font-size: .92rem; }

/* ===== Cards / grid ===== */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-sm); transition: .2s; height: 100%;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: #d3e6ef; }
.card .icon { width: 52px; height: 52px; border-radius: 12px; display: grid; place-items: center; font-size: 1.5rem; margin-bottom: 16px; }
.icon-blue { background: var(--bg-tint); color: var(--blue); }
.icon-teal { background: #E4F5F1; color: var(--teal); }
.card h3 { margin-bottom: .4rem; }
.card p { font-size: .95rem; }
.card ul { margin: 12px 0 0; padding-left: 0; list-style: none; }
.card ul li { padding-left: 26px; position: relative; font-size: .92rem; color: var(--slate); margin-bottom: 7px; }
.card ul li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 800; }
.card .price-tag { font-size: 1.05rem; font-weight: 800; color: var(--blue); margin-top: 14px; }

/* ===== Pricing table ===== */
.ptable-wrap { overflow-x: auto; }
.ptable { width: 100%; border-collapse: collapse; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.ptable th, .ptable td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); font-size: .95rem; }
.ptable thead th { background: var(--ink); color: #fff; font-weight: 700; }
.ptable tbody tr:hover { background: var(--bg-soft); }
.ptable .fee { font-weight: 800; color: var(--blue); white-space: nowrap; }
.pill { display: inline-block; background: #E4F5F1; color: var(--teal-dark); font-size: .74rem; font-weight: 700; padding: 3px 10px; border-radius: 20px; }

/* ===== Why / feature rows ===== */
.feat { display: flex; gap: 16px; align-items: flex-start; }
.feat .fic { flex: 0 0 46px; width: 46px; height: 46px; border-radius: 11px; background: var(--bg-tint); color: var(--blue); display: grid; place-items: center; font-size: 1.3rem; }
.feat h3 { font-size: 1.08rem; margin-bottom: .25rem; }
.feat p { font-size: .93rem; margin: 0; }

/* ===== Testimonials ===== */
.quote { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-sm); }
.quote .stars { color: #f5b301; margin-bottom: 10px; letter-spacing: 2px; }
.quote p { font-style: italic; color: var(--ink); }
.quote .who { display: flex; align-items: center; gap: 12px; margin-top: 14px; }
.quote .who .av { width: 42px; height: 42px; border-radius: 50%; background: var(--blue); color: #fff; display: grid; place-items: center; font-weight: 700; }
.quote .who b { display: block; font-size: .95rem; color: var(--ink); }
.quote .who span { font-size: .82rem; color: var(--slate); }

/* ===== CTA band ===== */
.cta-band { background: linear-gradient(120deg, var(--blue) 0%, var(--teal) 100%); color: #fff; border-radius: 20px; padding: 48px; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #eaf7fb; max-width: 560px; margin: 0 auto 22px; }
.cta-band .btn-ghost { background: #fff; color: var(--blue); border-color: #fff; }

/* ===== Footer ===== */
.footer { background: var(--ink); color: #b9cedb; padding: 56px 0 26px; }
.footer .fgrid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 34px; }
.footer h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.footer a { color: #b9cedb; display: block; margin-bottom: 9px; font-size: .93rem; }
.footer a:hover { color: #fff; }
.footer .brand-name { color: #fff; }
.footer .fbottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 40px; padding-top: 20px; font-size: .85rem; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ===== WhatsApp float ===== */
.wa-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  background: #25D366; color: #fff; width: 60px; height: 60px; border-radius: 50%;
  display: grid; place-items: center; box-shadow: 0 8px 24px rgba(37,211,102,.45);
  transition: .2s;
}
.wa-float:hover { transform: scale(1.07); }
.wa-float svg { width: 32px; height: 32px; }

/* ===== Utility ===== */
.mt-0 { margin-top: 0; }
.section-head { max-width: 680px; margin: 0 auto 44px; text-align: center; }

/* ===== Inner page header ===== */
.pagehead { background: linear-gradient(155deg, #EAF6FC 0%, #DCF0F9 55%, #DBF2ED 100%); padding: 54px 0 50px; }
.pagehead h1 { font-size: clamp(1.9rem, 4vw, 2.7rem); font-weight: 800; margin-bottom: .3em; }
.pagehead p { font-size: 1.1rem; max-width: 620px; }
.breadcrumb { font-size: .84rem; color: var(--slate); margin-bottom: 12px; }
.breadcrumb a { color: var(--blue); }
.twocol { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: start; }
.twocol.narrow-right { grid-template-columns: 1.3fr .9fr; }
.checklist { list-style: none; padding: 0; margin: 0; }
.checklist li { padding-left: 28px; position: relative; margin-bottom: 11px; color: var(--slate); }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 800; }
.note { background: #FFF8E6; border: 1px solid #F1E2A6; border-radius: 12px; padding: 16px 18px; font-size: .92rem; color: #6b5a20; }
.note strong { color: #5a4a12; }
.faq { border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; margin-bottom: 12px; background: #fff; box-shadow: var(--shadow-sm); }
.faq h4 { margin: 0 0 6px; font-size: 1.02rem; }
.faq p { margin: 0; font-size: .94rem; }
.steps { counter-reset: step; display: grid; gap: 18px; }
.step { display: flex; gap: 16px; align-items: flex-start; }
.step .n { flex: 0 0 40px; width: 40px; height: 40px; border-radius: 50%; background: var(--blue); color: #fff; font-weight: 800; display: grid; place-items: center; }
.step h3 { font-size: 1.06rem; margin-bottom: .2rem; }
.step p { margin: 0; font-size: .94rem; }
@media (max-width: 900px) { .twocol, .twocol.narrow-right { grid-template-columns: 1fr; } }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero .form-col { order: -1; }
  .stats .container { grid-template-columns: repeat(2, 1fr); gap: 30px 20px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .footer .fgrid { grid-template-columns: 1fr 1fr; }
  .nav { display: none; position: absolute; top: 74px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; gap: 0; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); padding: 8px 0; }
  .nav.open { display: flex; }
  .nav a.navlink { padding: 13px 22px; border-bottom: 1px solid var(--bg-soft); }
  .menu-toggle { display: block; }
  .nav-cta .btn { display: none; }
  .cta-band { padding: 34px 22px; }
}
@media (max-width: 520px) {
  .stats .container { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .topbar .tb-left { display: none; }
  .brand-tag { display: none; }
}