:root{
  --navy:#04122e; --navy2:#071b42; --navy3:#0a2658;
  --cyan:#17bfff; --cyan2:#37d0ff; --cyan-soft:#bdefff;
  --ink:#0c1e3a; --muted:#51637e; --line:#dbe7f5;
  --bg:#f4f8fd; --card:#ffffff; --good:#0e9f6e; --warn:#e8a13a; --bad:#e05252;
  --radius:14px; --shadow:0 12px 32px rgba(4,25,64,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Segoe UI",system-ui,-apple-system,Arial,sans-serif;color:var(--ink);background:var(--bg);overflow-x:hidden}
img{max-width:100%}
a{color:var(--cyan);text-decoration:none}
button{font-family:inherit;cursor:pointer}
.hidden{display:none !important}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:linear-gradient(90deg,var(--navy),var(--navy2));box-shadow:0 4px 18px rgba(2,10,30,.35)}
.header-inner{max-width:1160px;margin:0 auto;padding:10px 18px;display:flex;align-items:center;gap:16px}
.brand{display:flex;align-items:center;gap:12px;color:#fff}
.brand img{width:46px;height:46px;border-radius:50%;object-fit:cover;border:2px solid var(--cyan)}
.brand .brand-name{font-size:21px;font-weight:800;letter-spacing:.3px}
.brand .brand-name span{color:var(--cyan2)}
.brand .brand-tag{font-size:11px;color:var(--cyan-soft);letter-spacing:1.2px;text-transform:uppercase}
.main-nav{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
.main-nav a{color:#e8f4ff;font-size:14.5px;padding:8px 12px;border-radius:8px}
.main-nav a:hover{background:rgba(23,191,255,.16);color:#fff}
.nav-actions{display:flex;gap:8px;align-items:center}
.btn{display:inline-block;border:none;border-radius:10px;padding:11px 20px;font-size:15px;font-weight:700;background:linear-gradient(180deg,var(--cyan2),#0aa9ec);color:#03223f;box-shadow:0 6px 16px rgba(14,150,220,.35);transition:transform .18s ease,box-shadow .18s ease}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(14,150,220,.4)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.secondary{background:#fff;color:var(--navy2);border:1.5px solid var(--cyan);box-shadow:none}
.btn.ghost{background:transparent;color:#e8f4ff;border:1.5px solid rgba(255,255,255,.45);box-shadow:none;padding:8px 14px;font-size:14px}
.btn.small{padding:7px 13px;font-size:13.5px}
.btn.danger{background:linear-gradient(180deg,#ff8a8a,#e05252);color:#fff;box-shadow:none}
.btn.good{background:linear-gradient(180deg,#3ddc97,#0e9f6e);color:#04331f;box-shadow:none}
.btn.warnb{background:linear-gradient(180deg,#ffd28a,#e8a13a);color:#3d2a02;box-shadow:none}
.user-chip{color:var(--cyan-soft);font-size:13.5px;max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* Announcement */
.announcement{background:linear-gradient(90deg,#0aa9ec,var(--cyan));color:#03223f;text-align:center;font-weight:700;font-size:14.5px;padding:9px 14px}

/* Hero */
.hero{background:radial-gradient(1000px 480px at 50% -80px,#12509e 0%,var(--navy2) 48%,var(--navy) 100%);color:#fff;text-align:center;padding:66px 18px 74px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:56px;background:linear-gradient(180deg,rgba(244,248,253,0),var(--bg))}
.hero .badge-pill{display:inline-block;background:rgba(23,191,255,.14);border:1.5px solid var(--cyan);color:var(--cyan-soft);font-weight:800;font-size:13.5px;letter-spacing:1px;padding:7px 18px;border-radius:999px;text-transform:uppercase;animation:fadeUp .7s ease both}
.admissions-3d{margin:22px auto 10px;font-size:clamp(44px,8.5vw,84px);line-height:1.02;font-weight:900;letter-spacing:1px;color:#fff;text-transform:uppercase;text-shadow:0 2px 0 #9adcff,0 4px 0 #4fc3ff,0 6px 0 #1d9fe8,0 8px 0 #1273b8,0 12px 0 #0b4e84,0 20px 34px rgba(0,0,0,.55);animation:fadeUp .8s .08s ease both}
.hero p.lead{max-width:680px;margin:14px auto 26px;color:#d7ecff;font-size:17.5px;line-height:1.65;animation:fadeUp .8s .16s ease both}
.hero .hero-cta{animation:fadeUp .8s .24s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* Layout */
.section{max-width:1160px;margin:0 auto;padding:56px 18px 8px}
.section h2{font-size:29px;margin:0 0 6px;color:var(--navy2)}
.section .section-sub{color:var(--muted);margin:0 0 26px;font-size:15.5px}
.grid{display:grid;gap:20px}
.grid.courses{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 4px 14px rgba(4,25,64,.06);transition:transform .2s ease,box-shadow .2s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card h3{margin:0 0 8px;font-size:18.5px;color:var(--navy2)}
.card p{color:var(--muted);font-size:14.5px;line-height:1.6;margin:0 0 10px}
.tag{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.6px;padding:5px 11px;border-radius:999px;text-transform:uppercase}
.tag.open{background:#e2f8ef;color:#07714e}
.tag.closed{background:#fdecec;color:#a12c2c}
.tag.next{background:#e8f5ff;color:#0b62a5}

/* Featured course */
.featured{background:linear-gradient(135deg,var(--navy2),var(--navy3));color:#fff;border-radius:18px;padding:32px;display:grid;grid-template-columns:1.5fr 1fr;gap:28px;box-shadow:var(--shadow);overflow:hidden}
.featured h3{font-size:26px;margin:0 0 10px;color:#fff}
.featured p{color:#cfeaff;line-height:1.7;font-size:15.5px}
.featured .fact-row{display:flex;flex-wrap:wrap;gap:10px;margin:16px 0}
.fact{background:rgba(23,191,255,.13);border:1px solid rgba(55,208,255,.5);color:#e6f7ff;border-radius:10px;padding:9px 14px;font-size:14px;font-weight:700}
.featured .side{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:20px}
.featured .side h4{margin:0 0 12px;font-size:16px;color:var(--cyan2)}
.featured .side ul{margin:0;padding-left:18px;color:#d7ecff;line-height:1.8;font-size:14.5px}
.price{font-size:32px;font-weight:900;color:#fff}
.price small{font-size:14px;color:var(--cyan-soft);font-weight:600}

/* Steps */
.steps{grid-template-columns:repeat(auto-fit,minmax(215px,1fr))}
.step-num{width:38px;height:38px;border-radius:50%;background:linear-gradient(180deg,var(--cyan2),#0aa9ec);color:#03223f;font-weight:900;display:flex;align-items:center;justify-content:center;margin-bottom:12px}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:17px 20px;font-size:16px;font-weight:700;color:var(--navy2);display:flex;justify-content:space-between;gap:12px}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a div{padding:0 20px 17px;color:var(--muted);line-height:1.65;font-size:15px}
.faq-item.open .faq-a{max-height:220px}

/* Forms and views */
.view{max-width:860px;margin:0 auto;padding:38px 18px 20px}
.panel{background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:28px}
.panel h2{margin:0 0 6px;color:var(--navy2);font-size:25px}
.panel .panel-sub{color:var(--muted);margin:0 0 22px;font-size:15px;line-height:1.6}
label{display:block;font-size:14px;font-weight:700;color:var(--navy2);margin:15px 0 6px}
label .wa-icon{vertical-align:-3px;margin-right:6px}
input,select,textarea{width:100%;padding:12px 13px;border:1.5px solid #c3d6ee;border-radius:10px;font-size:15px;font-family:inherit;background:#fbfdff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(23,191,255,.18)}
.hint{font-size:13px;color:var(--muted);margin-top:5px}
.error{font-size:13.5px;color:#b32626;margin-top:7px;min-height:16px}
.notice{border-radius:12px;padding:15px 17px;font-size:15px;line-height:1.6;margin:18px 0}
.notice.info{background:#e8f5ff;border:1px solid #aedcff;color:#0b4e84}
.notice.good{background:#e2f8ef;border:1px solid #a9e8cd;color:#06573c}
.pay-box{background:var(--navy);color:#fff;border-radius:14px;padding:22px;margin:22px 0}
.pay-box h3{margin:0 0 8px;color:var(--cyan2);font-size:18px}
.pay-box .pay-num{font-size:27px;font-weight:900;letter-spacing:1px}
.pay-box p{color:#cfeaff;margin:5px 0;font-size:14.5px}
.attach-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:8px}
.attach-name{font-size:14px;color:var(--muted)}
.progress{height:9px;background:#e3edf8;border-radius:99px;overflow:hidden;margin-top:10px}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--cyan),#0aa9ec);transition:width .25s ease}
.form-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.receipt{border:2px dashed #9cc8ee;border-radius:14px;padding:22px;background:#fbfdff}
.receipt h3{margin:0 0 12px;color:var(--navy2)}
.receipt table{width:100%;border-collapse:collapse;font-size:15px}
.receipt td{padding:7px 4px;border-bottom:1px solid var(--line)}
.receipt td:first-child{color:var(--muted);width:42%}
.status{font-weight:800;font-size:12.5px;padding:4px 11px;border-radius:999px;text-transform:uppercase;letter-spacing:.5px}
.status.Pending{background:#fdf3e0;color:#8a5b00}
.status.Approved{background:#e2f8ef;color:#07714e}
.status.Rejected{background:#fdecec;color:#a12c2c}

/* Footer */
.site-footer{background:linear-gradient(180deg,var(--navy2),var(--navy));color:#d7ecff;margin-top:70px}
.footer-inner{max-width:1160px;margin:0 auto;padding:46px 18px 26px;display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:34px}
.site-footer h4{color:#fff;margin:0 0 14px;font-size:16.5px}
.site-footer p,.site-footer li{font-size:14.5px;line-height:1.7;color:#b9d9f7}
.site-footer ul{list-style:none;margin:0;padding:0}
.footer-brand{display:flex;gap:12px;align-items:center;margin-bottom:12px}
.footer-brand img{width:52px;height:52px;border-radius:50%;object-fit:cover;border:2px solid var(--cyan)}
.footer-brand .brand-name{color:#fff;font-size:20px;font-weight:800}
.footer-brand .brand-name span{color:var(--cyan2)}
.teacher-name{color:#fff;font-weight:700}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);text-align:center;padding:16px;font-size:13.5px;color:#8fb8dd}

/* Admin */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:24px}
.stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;text-align:center}
.stat b{display:block;font-size:27px;color:var(--navy2)}
.stat span{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.6px}
.enroll-card{display:grid;grid-template-columns:170px 1fr;gap:18px}
.enroll-card img.shot{width:170px;height:170px;object-fit:cover;border-radius:10px;border:1px solid var(--line);background:#eef4fb}
.enroll-card table{width:100%;border-collapse:collapse;font-size:14.5px}
.enroll-card td{padding:5px 4px;border-bottom:1px solid var(--line)}
.enroll-card td:first-child{color:var(--muted);width:32%}
.admin-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.admin-wrap{max-width:1160px;margin:0 auto;padding:30px 18px 60px}
.admin-wrap h2{color:var(--navy2)}
.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}
.switch-row{display:flex;align-items:center;gap:10px;margin-top:18px}
.switch-row input{width:auto}

@media (max-width:820px){
  .featured{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .enroll-card{grid-template-columns:1fr}
  .enroll-card img.shot{width:100%;height:auto;max-height:260px}
  .settings-grid{grid-template-columns:1fr}
  .main-nav{display:none}
  .header-inner{flex-wrap:wrap}
  .panel{padding:20px}
}