:root{
  --pink:#ff4d94; --pink-soft:#ff7fb2; --pink-bg:#fff0f6;
  --coral:#ff8a3d; --ink:#2b2b3a; --muted:#8a8a9a;
  --line:#f0e0e8; --card:#ffffff; --ok:#28c76f;
  --shadow:0 8px 24px rgba(255,77,148,.10);
  --radius:16px;
  font-synthesis:none;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Baloo 2','Quicksand',-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--ink); background:#fff; line-height:1.5;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
button{font-family:inherit;cursor:pointer}

/* ---------- Header ---------- */
.hdr{
  display:flex;align-items:center;gap:18px;
  padding:12px 28px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:#fff;z-index:50;
}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--pink);font-size:20px}
.logo .dot{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--pink),var(--coral));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px}
.search{flex:0 1 320px;display:flex;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.search input{flex:1;border:0;padding:10px 14px;outline:none;font-size:14px}
.search button{border:0;background:var(--pink);color:#fff;padding:0 16px;font-size:16px}
.nav{display:flex;gap:22px;font-weight:600;color:#444}
.nav a:hover{color:var(--pink)}
.spacer{flex:1}
.btn{border:0;border-radius:22px;padding:9px 20px;font-weight:700;font-size:14px}
.btn-ghost{background:#fff;color:var(--pink);border:1.6px solid var(--pink)}
.btn-solid{background:var(--pink);color:#fff}
.btn-solid:hover{background:#ff2f80}
.btn-ghost:hover{background:var(--pink-bg)}
.avatar{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--coral));
  color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800}

/* ---------- Layout ---------- */
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.section-title{text-align:center;color:var(--pink);font-size:28px;font-weight:800;margin:44px 0 24px}
.section-title.left{text-align:left}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(180deg,#fff6fa,#fff);padding:26px 0 8px}
.hero-inner{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.hero-badge{background:var(--pink);color:#fff;font-weight:800;font-size:30px;line-height:1.15;
  padding:16px 26px;border-radius:40px;box-shadow:var(--shadow);display:inline-block}
.hero-badge.orange{background:var(--coral);font-size:24px;margin-top:12px}
.hero-emojis{font-size:52px;letter-spacing:6px}

/* ---------- Cards ---------- */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
@media(max-width:960px){.grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.grid{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .15s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px)}
.thumb{aspect-ratio:16/10;background:linear-gradient(135deg,#ffd6e7,#ffe9d6);position:relative;
  display:flex;align-items:center;justify-content:center}
.thumb .play{width:58px;height:58px;border-radius:50%;background:rgba(255,255,255,.9);color:var(--pink);
  display:flex;align-items:center;justify-content:center;font-size:24px;box-shadow:var(--shadow)}
.thumb .emoji{font-size:46px}
.card-body{padding:14px 16px 18px;display:flex;flex-direction:column;gap:6px;flex:1}
.card-title{font-weight:800;font-size:15px;line-height:1.35;min-height:40px}
.card-author{color:var(--muted);font-size:13px}
.card-desc{color:#666;font-size:13px;flex:1}
.progress-bar{height:6px;background:#f2e6ec;border-radius:6px;overflow:hidden;margin-top:8px}
.progress-bar i{display:block;height:100%;background:var(--pink);border-radius:6px}
.card-foot{display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--muted);margin-top:6px}
.price{color:var(--coral);font-weight:800;font-size:16px}
.tag{font-size:11px;padding:3px 10px;border-radius:20px;background:var(--pink-bg);color:var(--pink);font-weight:700}

/* ---------- Testimonials ---------- */
.tgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:860px){.tgrid{grid-template-columns:1fr}}
.tcard{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.tcard .who{font-weight:800;color:var(--pink)}
.tcard .role{color:var(--muted);font-size:13px;margin-bottom:8px}
.tcard .quote{color:#555;font-size:14px;font-style:italic}

/* ---------- Auth / activate ---------- */
.auth{max-width:420px;margin:60px auto;background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:34px;box-shadow:var(--shadow)}
.auth h1{color:var(--pink);text-align:center;margin:0 0 6px}
.auth p.sub{text-align:center;color:var(--muted);margin:0 0 22px}
.field{margin-bottom:14px}
.field label{display:block;font-weight:700;font-size:13px;margin-bottom:6px}
.field input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;font-size:15px;outline:none}
.field input:focus{border-color:var(--pink)}
.msg{padding:10px 14px;border-radius:10px;font-size:14px;margin-bottom:14px;display:none}
.msg.err{background:#ffe9ef;color:#d81b60;display:block}
.msg.ok{background:#e7f8ee;color:#1b9e52;display:block}
.full{width:100%;padding:13px;font-size:16px}
.tabs{display:flex;gap:26px;border-bottom:1px solid var(--line);margin:10px 0 26px}
.tabs button{background:none;border:0;padding:12px 2px;font-weight:700;color:var(--muted);font-size:16px;
  border-bottom:3px solid transparent;margin-bottom:-1px}
.tabs button.active{color:var(--pink);border-bottom-color:var(--pink)}
.empty{color:var(--muted);text-align:center;padding:40px}

/* ---------- Classroom ---------- */
.cls-top{display:flex;align-items:center;gap:14px;padding:12px 22px;background:#a9d3f5;color:#123;
  position:sticky;top:0;z-index:40}
.cls-top .home{width:34px;height:34px;border-radius:8px;background:#fff;display:flex;align-items:center;justify-content:center}
.cls-top h2{font-size:16px;font-weight:700;margin:0}
.cls-body{display:flex;min-height:calc(100vh - 58px)}
.cls-main{flex:1;background:#000;display:flex;flex-direction:column}
.stage{flex:1;display:flex;align-items:center;justify-content:center;background:#000;min-height:56vh}
.stage video,.stage audio{width:100%;max-height:70vh}
.stage .intro{color:#fff;text-align:center;padding:40px}
.stage .flashword{font-size:110px;font-weight:800;color:#0a7b3e}
.cls-actions{display:flex;justify-content:center;gap:40px;background:#eee;padding:12px}
.cls-actions button{background:#fff;border:1.4px solid var(--pink);color:var(--pink);border-radius:22px;padding:8px 20px;font-weight:700}
.cls-side{width:380px;background:#fff;border-left:1px solid var(--line);display:flex;flex-direction:column}
.cls-side .side-tabs{display:flex;gap:20px;padding:16px 20px;border-bottom:1px solid var(--line)}
.cls-side .side-tabs button{background:none;border:0;font-weight:700;color:var(--muted);font-size:15px}
.cls-side .side-tabs button.active{color:var(--pink)}
.chapter{padding:14px 20px;border-bottom:1px solid var(--line)}
.chapter h4{margin:0;color:var(--pink);font-size:15px}
.chapter .meta{color:var(--muted);font-size:12px}
.lesson{display:flex;gap:10px;align-items:center;padding:12px 20px;border-bottom:1px solid #f6eef2;cursor:pointer}
.lesson:hover{background:var(--pink-bg)}
.lesson.active{background:#fff0f6}
.lesson.active .l-title{color:var(--pink);font-weight:700}
.lesson .ic{width:18px;text-align:center;color:var(--ok)}
.lesson .l-title{font-size:14px}
.lesson .l-dur{color:var(--muted);font-size:12px;margin-left:auto}
@media(max-width:900px){.cls-body{flex-direction:column}.cls-side{width:100%}}
.footer{padding:40px;text-align:center;color:var(--muted);font-size:13px;border-top:1px solid var(--line);margin-top:40px}