/* Tông màu theo trang mẫu: nền kem, chữ xanh rêu đậm, tiêu đề serif, nút xanh lá đậm */
:root{
  --bg:#f6f3ea; --bg2:#ebefe6; --card:#fffdf8; --line:#e2e3d8; --line2:#d3d8cc;
  --ink:#16241e; --ink2:#2a3a33; --muted:#5d6b64; --brand:#2c6a58; --brand-d:#1f4f42; --brand-l:#dfeae3;
  --gold:#c8a46a; --gold-d:#9b7a45; --warn:#b7791f; --bad:#b4423a; --ok:#2c7a55;
  --serif:'Newsreader',Georgia,'Times New Roman',serif; --sans:'Be Vietnam Pro',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  --r:14px; --shadow:0 1px 2px rgba(22,36,30,.05),0 10px 30px rgba(22,36,30,.07);
}
*{box-sizing:border-box} [hidden]{display:none!important}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink2);font:15.5px/1.65 var(--sans);-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none} a:hover{color:var(--brand-d)}
img{max-width:100%;display:block}
h1,h2,h3,h4{font-family:var(--serif);color:var(--ink);line-height:1.15;margin:0 0 .5em;font-weight:600;letter-spacing:-.01em}
h1{font-size:clamp(34px,5vw,54px)} h2{font-size:clamp(28px,3.6vw,42px)} h3{font-size:21px}
.accent{color:var(--brand)}
.wrap{max-width:1140px;margin:0 auto;padding:0 22px}
.narrow{max-width:760px}
.muted{color:var(--muted)} small{font-size:12.5px}
.eyebrow{display:block;font:600 11.5px/1.4 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--brand);margin-bottom:12px}
.lead{font-size:17px;color:var(--muted);max-width:620px}

/* Nút */
.btn,.btn-o,button.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;border-radius:10px;padding:12px 20px;font:600 15px var(--sans);cursor:pointer;border:1px solid transparent;transition:.15s}
.btn{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(44,106,88,.22)} .btn:hover{background:var(--brand-d);color:#fff}
.btn-o{background:#fff;color:var(--ink);border-color:var(--line2)} .btn-o:hover{border-color:var(--brand);color:var(--brand)}
.btn.sm,.btn-o.sm{padding:7px 13px;font-size:13.5px;border-radius:8px}
.btn.gold{background:var(--gold-d)} .btn.danger{background:var(--bad);box-shadow:none} .btn.ghost{background:transparent;color:var(--brand);border-color:var(--line2);box-shadow:none}
.btn.block{width:100%}
button{font-family:inherit}

/* Header */
.topbar{position:sticky;top:0;z-index:30;background:rgba(250,248,241,.92);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:62px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font:600 12px/1.2 var(--sans);letter-spacing:.08em;color:var(--ink);text-transform:uppercase}
.logo{width:30px;height:30px;border-radius:7px;background:var(--ink);color:#fff;display:grid;place-items:center;font:700 17px var(--serif);letter-spacing:0}
.nav nav{display:flex;align-items:center;gap:20px;font-size:14px}
.nav nav a{color:var(--ink2)} .nav nav a:hover,.nav nav a.on{color:var(--brand)} .nav nav a.on{font-weight:600}
.dot{display:inline-grid;place-items:center;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--bad);color:#fff;font-size:11px;margin-left:3px}
.burger{display:none;background:none;border:1px solid var(--line2);border-radius:8px;padding:6px 10px;font-size:18px}

/* Hero */
.hero{padding:64px 0 72px;background:radial-gradient(1000px 500px at 85% 10%,#e3ece2 0,transparent 60%),var(--bg)}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.ticks{list-style:none;padding:0;margin:22px 0 28px;display:grid;gap:12px}
.ticks li{display:grid;grid-template-columns:22px 1fr;gap:10px;color:var(--muted);font-size:14.5px}
.ticks li::before{content:"✓";width:20px;height:20px;border-radius:50%;background:var(--brand-l);color:var(--brand);display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:2px}
.ticks b{color:var(--ink)}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.mock{background:linear-gradient(160deg,#e9f1ea,#dbe7de);border-radius:22px;padding:26px;box-shadow:var(--shadow);position:relative}
.mock-in{background:var(--card);border-radius:14px;padding:18px;border:1px solid var(--line)}
.mock-top{display:flex;justify-content:space-between;font:600 10px var(--sans);letter-spacing:.12em;color:var(--muted);margin-bottom:14px}
.mock-body{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:start}
.book{aspect-ratio:3/4.2;background:linear-gradient(170deg,#d9b57c,#b88d52);border-radius:4px 8px 8px 4px;padding:12px 10px;color:#2a2112;box-shadow:inset 6px 0 0 rgba(0,0,0,.12),0 8px 18px rgba(80,55,20,.25)}
.book small{font:600 7px var(--sans);letter-spacing:.1em;display:block;opacity:.75}
.book b{font:700 17px/1.05 var(--serif);display:block;margin:8px 0}
.bar{height:7px;border-radius:4px;background:#e7e9e1;margin:9px 0} .bar.s{width:60%} .bar.m{width:80%}
.paid{margin-top:16px;padding:10px 12px;border-radius:9px;background:#eef5ef;border:1px solid #cfe2d5;color:var(--ok);font-size:12.5px;display:flex;gap:8px;align-items:center}
.paid::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--ok)}
.float-tag{position:absolute;right:-10px;bottom:22px;background:#fff;border:1px solid var(--line);border-radius:9px;padding:8px 12px;font-size:12px;font-weight:600;box-shadow:var(--shadow)}

/* Section */
.sec{padding:80px 0} .sec.alt{background:var(--bg2)} .sec.dark{background:var(--ink);color:#d9e2dc} .sec.dark h2,.sec.dark h3{color:#fff}
.sec-head{max-width:720px;margin-bottom:36px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow)}
.card.flat{box-shadow:none}
.ex-list{display:grid;gap:14px}
.ex{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px}
.ex small{font:600 10.5px var(--sans);letter-spacing:.12em;color:var(--brand);text-transform:uppercase}
.ex q{display:block;font:600 18px/1.35 var(--serif);color:var(--ink);margin:6px 0;quotes:"“" "”"}
.ex p{margin:0;color:var(--muted);font-size:14px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:22px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px}
.stat b{display:block;font:600 26px var(--serif);color:var(--brand)} .stat span{font-size:13px;color:var(--muted)}

/* Chương trình */
.modules{display:grid;gap:14px}
.module{display:grid;grid-template-columns:70px 1fr;gap:18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px 24px}
.module .no{font:600 34px/1 var(--serif);color:var(--gold-d)}
.module h3{margin-bottom:6px} .module p{margin:0 0 6px;color:var(--muted)}
.module .out{font-size:14px;color:var(--ink2)} .module .out b{color:var(--brand)}
.module ul{margin:8px 0 0;padding-left:18px;color:var(--muted);font-size:14px}

/* Quà tặng */
.gifts{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.gift{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.gift .ic{font-size:28px} .gift h3{font-size:18px;margin:10px 0 6px} .gift p{margin:0;color:var(--muted);font-size:14px}

/* Giá */
.price-box{max-width:560px;margin:0 auto;background:var(--card);border:2px solid var(--brand);border-radius:20px;padding:30px;box-shadow:var(--shadow);text-align:center}
.price-box .old{text-decoration:line-through;color:var(--muted);font-size:18px}
.price-box .now{font:700 52px/1.1 var(--serif);color:var(--brand);margin:4px 0}
.price-box ul{text-align:left;margin:20px 0;padding:0;list-style:none;display:grid;gap:8px}
.price-box li::before{content:"✓  ";color:var(--brand);font-weight:700}
.count{display:flex;gap:8px;justify-content:center;margin:14px 0}
.count div{background:var(--ink);color:#fff;border-radius:8px;padding:8px 10px;min-width:58px}
.count b{display:block;font:600 22px var(--serif)} .count small{font-size:10px;opacity:.7}

/* FAQ */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:600;color:var(--ink);list-style:none;display:flex;justify-content:space-between;gap:10px}
.faq summary::after{content:"+";color:var(--brand);font-size:20px;line-height:1} .faq details[open] summary::after{content:"–"}
.faq p{margin:10px 0 0;color:var(--muted)}

/* Bản tin */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.post-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;color:inherit;display:flex;flex-direction:column;transition:.15s}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.pc-img{aspect-ratio:16/9;background:var(--bg2);position:relative}
.pc-img img{width:100%;height:100%;object-fit:cover} .pc-img .ph{display:grid;place-items:center;height:100%;font-size:36px}
.pin{position:absolute;top:10px;left:10px;background:var(--gold);color:#2a2112;font-size:11.5px;font-weight:600;padding:3px 8px;border-radius:6px}
.pc-b{padding:16px 18px} .pc-b h3{font-size:19px;margin:4px 0 6px} .pc-b p{margin:0;color:var(--muted);font-size:14px}
.article{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:34px;margin:30px auto}
.article .cover{border-radius:12px;margin:0 0 22px;width:100%}
.prose h2{font-size:28px;margin-top:1.2em} .prose h3{font-size:22px;margin-top:1em}
.prose blockquote{margin:16px 0;padding:10px 18px;border-left:4px solid var(--gold);background:#faf6ec;border-radius:0 10px 10px 0;color:var(--ink2);font-style:italic}
.prose figure{margin:18px 0} .prose figure img{border-radius:10px}
.embed{position:relative;aspect-ratio:16/9;margin:18px 0;border-radius:12px;overflow:hidden;background:#000}
.embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.share{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}

/* Thông báo nhanh */
.notice-bar{display:flex;align-items:center;gap:10px;background:var(--ink);color:#f3efe2;font-size:14px;padding:7px 12px;position:relative;z-index:31}
.nb-track{flex:1;overflow:hidden;white-space:nowrap;mask-image:linear-gradient(90deg,transparent,#000 4%,#000 96%,transparent)}
.nb-move{display:inline-flex;animation:nbmove 20s linear infinite} .notice-bar:hover .nb-move{animation-play-state:paused}
.nb-item{display:inline-block;padding-right:60px} .nb-item .sep{color:var(--gold);margin:0 14px}
.nb-btn{background:var(--gold);color:#2a2112;font-weight:600;border-radius:7px;padding:4px 11px;white-space:nowrap;font-size:13px} .nb-btn:hover{color:#2a2112;filter:brightness(1.05)}
.nb-x{background:none;border:0;color:#cdd5cf;font-size:20px;cursor:pointer;line-height:1}
@keyframes nbmove{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@media (prefers-reduced-motion:reduce){.nb-move{animation:none}.nb-track{white-space:normal}.nb-item[aria-hidden]{display:none}}

/* Form & bảng */
.box{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow);margin-bottom:20px}
.box.tight{padding:16px}
.auth{max-width:460px;margin:46px auto}
label{display:block;font-weight:600;font-size:13.5px;margin:12px 0 5px;color:var(--ink)}
input[type=text],input[type=tel],input[type=email],input[type=password],input[type=number],input[type=url],input[type=datetime-local],input[type=search],select,textarea{
  width:100%;padding:11px 13px;border:1px solid var(--line2);border-radius:9px;background:#fff;font:15px var(--sans);color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid #bcd6c9;border-color:var(--brand)}
textarea{min-height:110px;resize:vertical}
.inline{display:flex;gap:8px;flex-wrap:wrap;align-items:center} .inline input,.inline select{width:auto}
.check{display:flex;gap:8px;align-items:center;font-weight:500}
.check input{width:auto}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px} .grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
table.t{width:100%;border-collapse:collapse;font-size:14px;background:var(--card)}
.t th,.t td{padding:10px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.t th{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:#f8f6ef}
.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:12px}
.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:12px;font-weight:600}
.badge.ok{background:#e1f0e7;color:var(--ok)} .badge.warn{background:#fbf0d9;color:var(--warn)} .badge.bad{background:#f8e1de;color:var(--bad)}
.badge.mute{background:#ecebe4;color:var(--muted)} .badge.info{background:#e0ebf3;color:#2b5d80}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 18px}
.tabs a{padding:8px 14px;border-radius:9px;background:#fff;border:1px solid var(--line);color:var(--ink2);font-size:14px}
.tabs a.on{background:var(--ink);color:#fff;border-color:var(--ink)} .tabs.small a{padding:5px 11px;font-size:13px}
.flashes{margin-top:14px} .flash{padding:11px 15px;border-radius:10px;margin-bottom:8px;background:#e1f0e7;color:#1f5e40;border:1px solid #c3e0cf}
.flash.err{background:#f8e1de;color:#8c2f28;border-color:#efc5bf} .flash.info{background:#e0ebf3;color:#2b5d80;border-color:#c6d9e8}
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.kpi small{color:var(--muted);display:block} .kpi b{font:600 26px var(--serif);color:var(--ink)}
.bank{display:grid;grid-template-columns:1fr 1fr;gap:10px;background:#f8f6ef;border:1px dashed var(--line2);border-radius:12px;padding:14px;margin:12px 0}
.bank small{display:block;color:var(--muted)} .bank b{color:var(--ink)} .bank .full{grid-column:1/-1} .bank .copy{cursor:pointer;color:var(--brand)}
.page-title{padding:34px 0 10px} .page-title h1{font-size:clamp(28px,4vw,40px)}
.app-main{padding-bottom:60px}

/* Học */
.course-grid{display:grid;grid-template-columns:280px 1fr;gap:24px;align-items:start}
.side{position:sticky;top:80px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;max-height:calc(100vh - 100px);overflow:auto}
.side h4{font-size:15px;margin:12px 0 6px} .side a{display:block;padding:6px 10px;border-radius:8px;font-size:14px;color:var(--ink2)}
.side a.on{background:var(--brand-l);color:var(--brand-d);font-weight:600} .side a.done::after{content:" ✓";color:var(--ok)}
.progress{height:8px;background:#e7e9e1;border-radius:4px;overflow:hidden} .progress i{display:block;height:100%;background:var(--brand)}
.prompt{background:#1d2b25;color:#e9efe9;border-radius:12px;margin:14px 0;overflow:hidden}
.prompt-h{display:flex;justify-content:space-between;align-items:center;padding:9px 14px;background:#24352e;font-size:13px;font-weight:600}
.prompt pre{margin:0;padding:14px;white-space:pre-wrap;font:14px/1.6 var(--sans);user-select:text}
.copybtn{background:var(--gold);color:#2a2112;border:0;border-radius:7px;padding:5px 11px;font-weight:600;cursor:pointer}
.practice{background:#faf6ec;border:1px solid #eadfc4;border-radius:12px;padding:14px 16px;margin-top:16px}
.mod-card{display:grid;grid-template-columns:60px 1fr auto;gap:14px;align-items:center}
.mod-card .no{font:600 30px var(--serif);color:var(--gold-d)}
.search{max-width:380px}

/* Video */
.player{position:relative;aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden}
.player .yt,.player .yt iframe{position:absolute;inset:0;width:100%;height:100%}
.shield{position:absolute;inset:0 0 54px 0;z-index:2}
.wm{position:absolute;z-index:3;color:rgba(255,255,255,.35);font-size:13px;pointer-events:none;top:12px;right:16px;transition:all 4s}
.ctrl{position:absolute;left:0;right:0;bottom:0;z-index:4;display:flex;align-items:center;gap:10px;padding:10px 12px;background:linear-gradient(transparent,rgba(0,0,0,.75));color:#fff}
.ctrl button{background:rgba(255,255,255,.15);border:0;color:#fff;border-radius:7px;padding:6px 10px;cursor:pointer;font-size:14px}
.ctrl input[type=range]{flex:1;accent-color:var(--gold)} .ctrl .tm{font-size:12.5px;min-width:92px;text-align:right}
.vlist a{display:flex;gap:10px;padding:10px;border-radius:10px;color:var(--ink2);border:1px solid transparent}
.vlist a.on{background:var(--brand-l);border-color:#c8ddd1} .vlist img{width:110px;border-radius:7px}
.err-box{position:absolute;inset:0;z-index:5;display:grid;place-items:center;text-align:center;color:#fff;background:rgba(0,0,0,.85);padding:20px}

/* Editor */
.toolbar{display:flex;gap:4px;flex-wrap:wrap;margin-bottom:6px}
.toolbar button{background:#fff;border:1px solid var(--line2);border-radius:7px;padding:5px 9px;cursor:pointer;font-size:13px}
.preview{border:1px dashed var(--line2);border-radius:10px;padding:14px;background:#fff;min-height:120px}
.ed-grid{display:grid;grid-template-columns:1fr 320px;gap:20px;align-items:start}

/* Footer */
.foot{background:var(--ink);color:#b9c6be;padding:44px 0 18px;margin-top:40px}
.foot .brand{color:#fff} .foot .logo{background:var(--gold);color:var(--ink)} .foot b{color:#fff} .foot a{color:#e6d3ac}
.foot-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px} .copy{border-top:1px solid #2b3a33;margin-top:26px;padding-top:14px;font-size:13px}
.sticky-cta{display:none}

@media (max-width:900px){
  .hero-grid,.two,.course-grid,.ed-grid{grid-template-columns:1fr}
  .cards,.posts,.gifts{grid-template-columns:1fr 1fr} .kpis{grid-template-columns:1fr 1fr}
  .side{position:static;max-height:none} .foot-in{grid-template-columns:1fr}
  .burger{display:block} .topbar.app .nav nav{display:none}
  body.menu-open .topbar.app .nav nav{display:flex;position:absolute;top:62px;left:0;right:0;flex-direction:column;align-items:flex-start;background:var(--card);padding:14px 22px;border-bottom:1px solid var(--line)}
}
@media (max-width:640px){
  body{font-size:15px} .wrap{padding:0 16px} .sec{padding:56px 0} .hero{padding:36px 0 50px}
  .cards,.posts,.gifts,.grid2,.grid3,.stats,.bank{grid-template-columns:1fr}
  .topbar:not(.app) .nav nav a:not(.btn-o){display:none}
  .module{grid-template-columns:1fr;gap:4px} .mock-body{grid-template-columns:96px 1fr}
  .float-tag{right:8px;bottom:-14px} .mock{margin-bottom:14px}
  .topbar .btn-o.sm{white-space:nowrap;font-size:12.5px;padding:6px 10px} .brand span:last-child{font-size:10.5px}
  .article{padding:20px} .mod-card{grid-template-columns:44px 1fr} .mod-card .btn,.mod-card .btn-o{grid-column:1/-1}
  .sticky-cta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:40;padding:10px 14px;background:rgba(250,248,241,.96);border-top:1px solid var(--line);gap:10px;align-items:center;justify-content:space-between}
  .sticky-cta b{font:700 20px var(--serif);color:var(--brand)}
  body.has-sticky{padding-bottom:70px}
}
.show-m{display:none} @media (max-width:640px){.hide-m{display:none}.show-m{display:inline}}
.nav nav a{white-space:nowrap}
@media (max-width:980px){.topbar:not(.app) .nav nav a:nth-child(2),.topbar:not(.app) .nav nav a:nth-child(3){display:none}.nav nav{gap:14px}}

/* ===== Bảng màu phong thủy mệnh Mộc (2026-11-15): Mộc = xanh lá, Thủy sinh Mộc = xanh than/xanh ngọc, Thổ = điểm nhấn, tránh trắng/xám (Kim) ===== */
:root{
  --bg:#f7f5ec; --bg2:#e3f0ea; --card:#fffdf6; --line:#dfe6dd; --line2:#cbd8cf;
  --ink:#1b3a4b; --ink2:#3e4f47; --muted:#5b6b63;
  --brand:#2e7d4f; --brand-d:#1f5c3a; --brand-l:#dcefe4;
  --gold:#c99a4a; --gold-d:#b8893e; --ok:#2e7d4f;
}
.btn{box-shadow:0 6px 16px rgba(46,125,79,.25)}
.hero{background:radial-gradient(1000px 500px at 85% 10%,#d9ece3 0,transparent 60%),var(--bg)}
.mock{background:linear-gradient(160deg,#e3f0ea,#cfe5db)}
.book{background:linear-gradient(170deg,#3f9a66,#2e7d4f);color:#fff;box-shadow:inset 6px 0 0 rgba(0,0,0,.15),0 8px 18px rgba(31,92,58,.3)}
.book small{color:#f3e3c2;opacity:.95}
.topbar{background:rgba(247,245,236,.94)}
.prompt{background:#1b3a4b} .prompt-h{background:#22495d}
.t th{background:#eef4ef}
.bank{background:#f1f6f1}
.practice{background:#f6f1e3;border-color:#e6d6ae}
.prose blockquote{border-left-color:var(--brand);background:#eef6f0}
.copy{border-top-color:#2a4f63}
.foot{color:#c6d6dc} .foot a{color:#e9cf98}
.ex small,.eyebrow{color:var(--brand)}
.module .no,.mod-card .no{color:var(--brand)}
.stat b{color:var(--brand)}
.count div{background:var(--ink)}
.foot .muted{color:#a9bfc7}
.foot{margin-top:0}