:root{
  --blue:#2d7ee6;
  --cyan:#2bc7bd;
  --ink:#18314f;
  --muted:#6e7f95;
  --panel:rgba(255,255,255,.82);
  --line:rgba(70,132,188,.16);
  --shadow:0 18px 50px rgba(54,101,150,.18);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Segoe UI",Arial,sans-serif;color:var(--ink);background:#eef8ff;min-height:100vh;overflow-x:hidden}.nd-page{min-height:100vh;background:radial-gradient(circle at 9% 11%,rgba(103,201,219,.25),transparent 28%),radial-gradient(circle at 94% 12%,rgba(86,148,224,.20),transparent 28%),linear-gradient(180deg,#f7fcff 0,#eef8ff 58%,#f6fbff 100%);position:relative}.nd-page:before{content:"";position:absolute;inset:0;background:url('/assets/homepage/images/light.png') center top/cover no-repeat;opacity:.16;pointer-events:none}.nd-topbar{position:sticky;top:14px;z-index:20;width:min(1420px,calc(100% - 48px));margin:0 auto 6px;transform:translateY(14px);display:flex;align-items:center;gap:22px;padding:10px 18px;border:1px solid rgba(255,255,255,.86);border-radius:28px;background:rgba(255,255,255,.82);box-shadow:var(--shadow);backdrop-filter:blur(18px)}.nd-logo{display:flex;align-items:center;min-width:160px}.nd-logo img{height:46px;width:auto;display:block}.nd-nav{display:flex;gap:10px;align-items:center;flex:1;justify-content:center}.nd-nav a,.nd-link-btn{display:inline-flex;align-items:center;gap:7px;height:42px;padding:0 17px;border-radius:16px;color:#50637a;text-decoration:none;font-weight:700;white-space:nowrap}.nd-nav a.active,.nd-nav a:hover{color:#1e72d9;background:#eff6ff;box-shadow:inset 0 -3px 0 #2b76df}.nd-auth-links{display:flex;gap:9px;align-items:center}.nd-link-btn{border:1px solid rgba(63,136,216,.16);background:#fff;box-shadow:0 8px 20px rgba(61,120,185,.10)}.nd-link-btn.primary{color:white;background:linear-gradient(135deg,#2f80ed,#31c6b9);border:0}.nd-link-btn.ghost{color:#2e5e94}.nd-menu-btn{display:none;border:0;background:#eef6ff;border-radius:13px;width:46px;height:42px;padding:10px}.nd-menu-btn span{display:block;height:2px;background:#2e6ba8;margin:5px 0}.nd-main{position:relative;z-index:2;width:min(1390px,calc(100% - 52px));margin:0 auto;padding:54px 0 28px}.nd-hero{position:relative;min-height:560px;border-radius:34px;overflow:hidden;padding:78px 32px 38px;display:grid;grid-template-columns:1.05fr .95fr 320px;align-items:center;gap:20px}.nd-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(247,252,255,.96) 0%,rgba(247,252,255,.90) 35%,rgba(242,249,255,.55) 67%,rgba(237,248,255,.88) 100%),url('/assets/homepage/images/bg-page1.jpg') center/cover no-repeat;filter:saturate(.75) hue-rotate(165deg) brightness(1.35)}.nd-hero:after{content:"";position:absolute;inset:auto 0 0 0;height:220px;background:linear-gradient(0deg,#eef8ff 0,transparent 100%)}.nd-hero-copy,.nd-login-card,.nd-hero-art{position:relative;z-index:2}.nd-title-mark{font-family:Georgia,"Times New Roman",serif;font-size:clamp(68px,8vw,132px);line-height:.9;font-weight:900;color:#0f5a8a;letter-spacing:-5px;text-shadow:0 8px 24px rgba(54,138,197,.25);transform:skewX(-8deg)}.nd-slogan{font-family:Georgia,"Times New Roman",serif;font-size:22px;line-height:1.45;color:#43566d;margin:26px 0 26px}.nd-alert{display:inline-block;margin-bottom:16px;padding:12px 16px;border-radius:16px;background:#fff2d7;color:#8b5600;border:1px solid #ffd37d;font-weight:800}.nd-download-main{display:inline-flex;align-items:center;gap:16px;height:78px;min-width:292px;justify-content:center;padding:0 34px;border-radius:23px;color:white;text-decoration:none;font-size:31px;font-weight:900;letter-spacing:.5px;background:linear-gradient(180deg,#31d3cd 0,#0a8589 100%);border:4px solid rgba(255,255,255,.8);box-shadow:0 16px 25px rgba(6,135,146,.23),inset 0 0 0 2px rgba(0,85,92,.2)}.nd-download-main span{font-size:28px}.nd-platforms{display:flex;gap:13px;flex-wrap:wrap;margin-top:22px}.nd-platforms a{min-width:138px;height:48px;border-radius:13px;display:inline-flex;align-items:center;justify-content:center;color:#2b5977;text-decoration:none;background:rgba(255,255,255,.86);border:1px solid var(--line);font-weight:800;box-shadow:0 10px 22px rgba(59,118,175,.10)}.nd-hero-art{width:min(460px,100%);justify-self:center;filter:drop-shadow(0 30px 45px rgba(49,97,145,.2));opacity:.96}.nd-login-card{background:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow);border-radius:26px;padding:24px;backdrop-filter:blur(18px)}.nd-login-card h2{margin:0 0 16px;font-size:24px;color:#203247}.nd-auth-tabs{display:flex;gap:7px;background:#edf6ff;border-radius:17px;padding:5px;margin-bottom:14px}.nd-auth-tabs button{flex:1;height:36px;border:0;border-radius:13px;background:transparent;color:#55708b;font-weight:900;cursor:pointer}.nd-auth-tabs button.active{background:#fff;color:#2374d7;box-shadow:0 6px 16px rgba(48,111,190,.13)}.nd-auth-form{display:none}.nd-auth-form.active{display:block}.nd-auth-form label{display:flex;align-items:center;gap:9px;height:48px;border-radius:12px;background:#fff;border:1px solid #e0eaf4;margin-bottom:12px;padding:0 12px}.nd-auth-form label span{color:#8ca2b8}.nd-auth-form input{border:0;outline:0;background:transparent;width:100%;font-size:14px;color:#21374f}.nd-check{height:auto!important;background:transparent!important;border:0!important;padding:0!important;justify-content:flex-start;color:#8a9caf;font-size:14px}.nd-check input{width:18px!important;flex:0 0 18px}.nd-submit{width:100%;height:52px;border:0;border-radius:13px;background:linear-gradient(135deg,#2c7ee8,#35c2ad);color:white;font-weight:900;font-size:16px;box-shadow:0 12px 25px rgba(43,124,226,.22);cursor:pointer;text-decoration:none;display:flex;align-items:center;justify-content:center}.nd-auth-note{margin:13px 0 0;text-align:center;color:#8ba0b2;font-size:13px}.nd-user-box{background:#f3f9ff;border:1px solid #dbeefd;border-radius:16px;padding:14px;margin-bottom:14px}.nd-user-box strong{display:block;font-size:22px}.nd-user-box span{color:#6d8297}.nd-card-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.nd-card-actions a{flex:1;text-align:center;background:#eff7ff;color:#246db8;text-decoration:none;border-radius:12px;padding:10px;font-weight:800}.nd-content-grid{display:grid;grid-template-columns:1.05fr 1fr 1fr;gap:18px;margin-top:-4px;position:relative;z-index:3}.nd-card{background:rgba(255,255,255,.86);border:1px solid rgba(255,255,255,.9);border-radius:24px;box-shadow:var(--shadow);padding:24px;min-height:310px}.nd-card-head{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px}.nd-card-head h2{margin:0;font-size:22px;color:#203247}.nd-card-head a{color:#4379b0;text-decoration:none;font-weight:700}.nd-news-list{display:grid;gap:13px}.nd-news-item{display:grid;grid-template-columns:108px 1fr;gap:13px;text-decoration:none;color:inherit}.nd-thumb{height:72px;border-radius:12px;background-size:cover;background-position:center;filter:hue-rotate(170deg) saturate(.8) brightness(1.2)}.nd-news-body b{display:block;font-size:15px;color:#24374d;line-height:1.25}.nd-news-body em{font-style:normal;font-size:11px;background:#25b69e;color:white;border-radius:5px;padding:3px 6px;margin-right:5px}.nd-news-body small{display:block;color:#6e8091;line-height:1.35;margin:5px 0}.nd-news-body time{font-size:12px;color:#8ca2b4}.nd-empty-news{padding:24px;border-radius:14px;background:#f4f9ff;color:#6b8297}.nd-rank-tabs{display:flex;background:#edf5fe;border-radius:14px;padding:4px;margin-bottom:13px}.nd-rank-tabs span{flex:1;text-align:center;border-radius:11px;padding:8px;color:#7a8da1;font-weight:800}.nd-rank-tabs .active{background:white;color:#21a69b;box-shadow:0 5px 14px rgba(40,113,178,.1)}.nd-rank-list{list-style:none;padding:0;margin:0;display:grid;gap:10px}.nd-rank-list li{display:grid;grid-template-columns:34px 40px 1fr auto;gap:10px;align-items:center}.nd-rank-no{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#eff5ff;color:#7790a7;font-weight:900}.nd-rank-list li:nth-child(1) .nd-rank-no{background:linear-gradient(#ffe990,#f7aa24);color:white}.nd-avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#f6d7dc,#cfe8ff);font-weight:900}.nd-rank-list b{display:block;font-size:14px}.nd-rank-list small{display:block;color:#8a9bad;font-size:12px}.nd-rank-list strong{color:#20a39e}.nd-zalo-card p{color:#6f8192;line-height:1.5}.nd-zalo-logo{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:50%;background:#eaf4ff;color:#2170df;margin-right:6px}.nd-qr{width:178px;height:178px;margin:20px auto 14px;display:grid;grid-template-columns:repeat(2,1fr);gap:13px;padding:16px;background:#fff;border-radius:18px;box-shadow:inset 0 0 0 1px #dae7f2;position:relative;text-decoration:none}.nd-qr span{background:repeating-linear-gradient(45deg,#1d3048 0 5px,transparent 5px 10px),repeating-linear-gradient(-45deg,#1d3048 0 4px,transparent 4px 9px);border:6px solid #1d3048;border-radius:5px;opacity:.92}.nd-qr i{position:absolute;inset:0;margin:auto;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;background:#1d3048;color:#fff;font-style:normal;font-weight:900;font-size:13px}.nd-zalo-btn{height:48px;border-radius:20px;display:flex;align-items:center;justify-content:center;text-decoration:none;color:white;background:linear-gradient(135deg,#27b4db,#24bf9b);font-weight:900}.nd-footer{position:relative;z-index:2;width:min(1390px,calc(100% - 52px));margin:34px auto 0;padding:28px 20px;display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:22px;border-top:1px solid #d8e8f5;color:#6d7f91}.nd-footer img{height:48px}.nd-footer p{max-width:330px;line-height:1.45}.nd-footer nav{display:grid;gap:8px;align-content:start}.nd-footer a{color:#6d7f91;text-decoration:none}.nd-footer b{color:#24374d;margin-bottom:4px}.nd-social-icons{display:flex;gap:10px;margin-top:16px}.nd-social-icons a{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;color:white;background:#287cdf;font-weight:900}.nd-social-icons a:nth-child(2){background:#e7272d}.nd-social-icons a:nth-child(3){background:#111}.nd-social-icons a:nth-child(4){background:#47bca7}.nd-copy{text-align:center;color:#8da1b3;padding:12px 0 28px}.nd-toast{position:fixed;right:22px;top:22px;z-index:100;background:white;border-radius:16px;padding:14px 44px 14px 18px;box-shadow:0 15px 40px rgba(39,84,127,.18);border:1px solid #dcecf8;max-width:420px}.nd-toast strong{display:block;color:#2374d7}.nd-toast span{color:#536a80}.nd-toast button{position:absolute;right:10px;top:10px;width:28px;height:28px;border:0;border-radius:50%;background:#eef6ff;color:#386b9c;font-weight:900}.nd-toast.error strong{color:#d94040}.nd-toast.success strong{color:#15a36b}@media(max-width:1180px){.nd-hero{grid-template-columns:1fr 300px;padding-top:70px}.nd-hero-art{position:absolute;right:260px;bottom:20px;width:360px;opacity:.42}.nd-content-grid{grid-template-columns:1fr 1fr}.nd-zalo-card{grid-column:1/-1}.nd-auth-links{display:none}.nd-nav{justify-content:flex-end}}@media(max-width:820px){.nd-topbar{width:calc(100% - 24px);top:8px;transform:translateY(8px);flex-wrap:wrap}.nd-menu-btn{display:block;margin-left:auto}.nd-nav{display:none;width:100%;order:4;flex-direction:column;align-items:stretch}.nd-nav.open{display:flex}.nd-nav a{justify-content:center}.nd-main{width:calc(100% - 22px);padding-top:38px}.nd-hero{grid-template-columns:1fr;min-height:auto;padding:42px 16px 24px;border-radius:24px}.nd-hero-art{display:none}.nd-title-mark{font-size:72px;letter-spacing:-2px}.nd-slogan{font-size:17px}.nd-download-main{width:100%;min-width:0;font-size:24px}.nd-platforms a{flex:1;min-width:110px}.nd-login-card{margin-top:20px}.nd-content-grid{grid-template-columns:1fr}.nd-news-item{grid-template-columns:86px 1fr}.nd-footer{width:calc(100% - 22px);grid-template-columns:1fr}.nd-logo img{height:40px}}

/* 2026-07: homepage cleanup requested by owner */
.nd-rank-list li{grid-template-columns:34px 1fr auto}
.nd-rank-tabs span{flex:0 0 100%}
.nd-qr{display:flex;align-items:center;justify-content:center;padding:10px;overflow:hidden}
.nd-qr img{display:block;width:100%;height:100%;object-fit:contain;border-radius:10px}
.nd-social-icons a:nth-child(1){background:#287cdf}
.nd-social-icons a:nth-child(2){background:#1f6ed4}
.nd-social-icons a:nth-child(3){background:#159b83}