/* VTG Khách hàng - webapp. Điện thoại trước, máy tính khung giữa 560px. */
*{box-sizing:border-box}
html,body{margin:0;background:#f4f6fa;color:#172b4d;font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;-webkit-text-size-adjust:100%}
a{color:var(--kh)}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit;width:100%;padding:12px 14px;border:1px solid #d5dbe5;border-radius:12px;background:#fff;color:inherit}
input:focus,textarea:focus,select:focus{outline:2px solid var(--kh);outline-offset:0;border-color:transparent}
#kh{max-width:560px;margin:0 auto;min-height:100vh;padding-bottom:calc(76px + env(safe-area-inset-bottom))}
.kh-boot{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:80vh;color:#6b778c}
.kh-boot img{border-radius:18px}

/* đầu trang */
.kh-top{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:10px;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:var(--kh);color:#fff}
.kh-top img{width:34px;height:34px;border-radius:9px;background:#fff}
.kh-top b{flex:1;min-width:0;font-size:16px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.kh-top small{display:block;font-weight:400;opacity:.85;font-size:12px}
.kh-top button{border:0;background:rgba(255,255,255,.18);color:#fff;border-radius:999px;padding:6px 12px;font-size:13px}

/* nội dung */
.kh-page{padding:14px 14px 0}
.kh-h{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:#6b778c;margin:18px 4px 8px}
.kh-card{background:#fff;border-radius:16px;padding:14px;margin:0 0 10px;box-shadow:0 1px 2px rgba(23,43,77,.06)}
.kh-card.is-warn{border-left:4px solid #e2830f}
.kh-card.is-bad{border-left:4px solid #c9372c}
.kh-card.is-ok{border-left:4px solid #1f845a}
.kh-row{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.kh-row b{font-size:15px}
.kh-sub{color:#6b778c;font-size:13px}
.kh-pill{flex:none;font-size:12px;font-weight:700;border-radius:999px;padding:2px 9px;background:#e9eef6;color:#44546f}
.kh-pill.ok{background:#e3fcef;color:#006644}.kh-pill.warn{background:#fff1d6;color:#a5640b}.kh-pill.bad{background:#ffebe6;color:#bf2600}
.kh-acts{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.kh-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:42px;padding:0 18px;border-radius:999px;border:1px solid #d5dbe5;background:#fff;color:#172b4d;font-weight:600;text-decoration:none}
.kh-btn.p{background:var(--kh);border-color:var(--kh);color:#fff}
.kh-btn.w{width:100%}
.kh-btn[disabled]{opacity:.55}
.kh-todo{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-top:1px solid #eef1f5}
.kh-todo:first-child{border-top:0;padding-top:0}
.kh-todo i{font-style:normal;flex:none;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#fff1d6}
.kh-empty{color:#6b778c;text-align:center;padding:18px 8px}
.kh-chips{display:flex;gap:6px;overflow-x:auto;padding:2px 2px 8px;margin:0 -2px}
.kh-chips button{flex:none;border:1px solid #d5dbe5;background:#fff;border-radius:999px;padding:6px 14px;font-size:13px}
.kh-chips button.on{background:var(--kh);border-color:var(--kh);color:#fff}
.kh-sublinks{display:flex;flex-wrap:wrap;gap:4px 12px;margin-top:6px;font-size:13px}
.kh-qr{text-align:center;padding:8px 0}
.kh-qr svg{width:220px;height:220px;max-width:100%}
.kh-kv{display:flex;justify-content:space-between;gap:10px;padding:6px 0;border-top:1px dashed #e3e7ee;font-size:14px}
.kh-kv span{color:#6b778c}
.kh-kv b{text-align:right;word-break:break-word}
.kh-copy{border:0;background:none;color:var(--kh);font-size:12px;padding:0 0 0 6px;text-decoration:underline}
.kh-field{margin:0 0 12px}
.kh-field label{display:block;font-size:13px;color:#6b778c;margin:0 0 4px}
.kh-msg{border-radius:12px;padding:10px 12px;margin:0 0 10px;font-size:14px}
.kh-msg.ok{background:#e3fcef;color:#006644}.kh-msg.err{background:#ffebe6;color:#bf2600}
.kh-stat{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;text-align:center}
.kh-stat b{display:block;font-size:22px;color:var(--kh)}
.kh-stat span{font-size:12px;color:#6b778c}

/* đăng nhập */
.kh-login{padding:calc(40px + env(safe-area-inset-top)) 20px 20px;text-align:center}
.kh-login img{width:84px;height:84px;border-radius:20px;margin-bottom:10px}
.kh-login h1{font-size:22px;margin:4px 0 4px}
.kh-login p{color:#6b778c;margin:0 0 18px}
.kh-login form{text-align:left}
.kh-otp{letter-spacing:10px;text-align:center;font-size:26px;font-weight:700}
.kh-link{border:0;background:none;color:var(--kh);text-decoration:underline;padding:6px}

/* thanh đáy */
.kh-nav{position:fixed;left:0;right:0;bottom:0;z-index:6;display:flex;justify-content:center;background:#fff;border-top:1px solid #e3e7ee;padding-bottom:env(safe-area-inset-bottom)}
.kh-nav div{display:flex;width:100%;max-width:560px}
.kh-nav a{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 0 7px;color:#6b778c;text-decoration:none;font-size:11.5px;font-weight:600}
.kh-nav a svg{width:22px;height:22px}
.kh-nav a.on{color:var(--kh)}

/* hộp nổi */
.kh-sheet{position:fixed;inset:0;z-index:20;background:rgba(9,30,66,.45);display:flex;align-items:flex-end;justify-content:center}
.kh-sheet>div{width:100%;max-width:560px;max-height:88vh;overflow:auto;background:#fff;border-radius:20px 20px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom))}
.kh-sheet h3{margin:0 0 10px;font-size:18px}
.kh-install{display:flex;gap:10px;align-items:center;background:#fff;border-radius:16px;padding:12px 14px;margin:0 0 10px;box-shadow:0 1px 2px rgba(23,43,77,.06)}
.kh-install img{width:40px;height:40px;border-radius:10px}
.kh-install div{flex:1;font-size:13px}
.kh-install b{display:block;font-size:14px}
@media (min-width:600px){.kh-sheet{align-items:center}.kh-sheet>div{border-radius:20px}}

/* trang đăng nhập - phong cách công nghệ, 2 tông logo: xanh #144787 + vàng đồng #c39a3c */
body.kh-is-login{background:#071328}
body.kh-is-login #kh{max-width:none;padding:0}
.kh-land{--g:#c39a3c;--b:#144787;position:relative;min-height:100vh;display:grid;gap:28px;padding:calc(28px + env(safe-area-inset-top)) 18px 24px;color:#e6edf8;overflow:hidden;
	background:radial-gradient(900px 500px at 85% -10%,rgba(195,154,60,.18),transparent 60%),radial-gradient(800px 600px at -10% 110%,rgba(20,71,135,.55),transparent 60%),linear-gradient(160deg,#071328,#0b2148 55%,#081a38)}
.kh-land-bg{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(120,160,230,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(120,160,230,.07) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(ellipse at 50% 40%,#000 30%,transparent 80%)}
.kh-land-bg i{position:absolute;width:340px;height:340px;border-radius:50%;filter:blur(70px);opacity:.45;animation:khf 14s ease-in-out infinite alternate}
.kh-land-bg i:first-child{background:var(--b);top:-80px;left:-60px}
.kh-land-bg i:last-child{background:var(--g);bottom:-120px;right:-80px;opacity:.28;animation-delay:-7s}
@keyframes khf{to{transform:translate(60px,40px) scale(1.15)}}
@media (prefers-reduced-motion:reduce){.kh-land-bg i{animation:none}}
.kh-hero,.kh-panel{position:relative;z-index:1}
.kh-brand{display:flex;align-items:center;gap:12px;margin-bottom:26px}
.kh-brand img{width:48px;height:48px;border-radius:13px;background:#fff;box-shadow:0 0 0 1px rgba(195,154,60,.5),0 0 24px rgba(195,154,60,.35)}
.kh-brand span{font-weight:800;font-size:18px;letter-spacing:.02em;line-height:1.15}
.kh-brand small{display:block;font-weight:600;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--g)}
.kh-hero h1{font-size:clamp(26px,5.6vw,46px);line-height:1.15;margin:0 0 14px;font-weight:800;letter-spacing:-.01em}
.kh-hero h1 em{font-style:normal;background:linear-gradient(90deg,#f1d48a,var(--g) 50%,#7fb0ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.kh-lead{color:#a9b8d3;font-size:15.5px;max-width:520px;margin:0 0 22px}
.kh-feat{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.kh-feat li{display:flex;gap:10px;align-items:flex-start;padding:12px;border-radius:14px;background:rgba(255,255,255,.04);border:1px solid rgba(140,175,235,.14);transition:border-color .2s,transform .2s}
.kh-feat li:hover{border-color:rgba(195,154,60,.55);transform:translateY(-2px)}
.kh-feat svg{flex:none;width:34px;height:34px;padding:7px;border-radius:10px;color:#f1d48a;background:linear-gradient(140deg,rgba(195,154,60,.25),rgba(20,71,135,.5));border:1px solid rgba(195,154,60,.35)}
.kh-feat b{display:block;font-size:13.5px;color:#fff}
.kh-feat span{display:block;font-size:12px;color:#8fa1c2;line-height:1.4}
.kh-glass{position:relative;padding:24px 20px;border-radius:22px;background:rgba(12,30,64,.62);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid rgba(140,175,235,.2);box-shadow:0 20px 60px rgba(0,0,0,.4),inset 0 1px 0 rgba(255,255,255,.06)}
.kh-glass::before{content:"";position:absolute;inset:-1px;border-radius:inherit;padding:1px;background:linear-gradient(135deg,rgba(195,154,60,.8),transparent 35%,transparent 65%,rgba(80,140,240,.7));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.kh-tag{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--g);padding:4px 10px;border-radius:999px;background:rgba(195,154,60,.12);border:1px solid rgba(195,154,60,.3)}
.kh-glass h2{margin:12px 0 4px;font-size:22px;color:#fff}
.kh-glass>p{color:#a9b8d3;margin:0 0 16px;font-size:14px}
.kh-glass label{color:#a9b8d3}
.kh-glass input{background:rgba(4,14,32,.6);border-color:rgba(140,175,235,.25);color:#fff;padding:14px 16px}
.kh-glass input::placeholder{color:#5f739a}
.kh-glass input:focus{outline:2px solid var(--g);border-color:transparent;box-shadow:0 0 0 5px rgba(195,154,60,.15)}
.kh-glass .kh-btn.p{min-height:50px;border:0;background:linear-gradient(100deg,#1a5bb0,var(--b) 45%,#9c7a2c 100%);background-size:200% 100%;box-shadow:0 8px 24px rgba(20,71,135,.5);transition:background-position .4s}
.kh-glass .kh-btn.p:hover{background-position:100% 0}
.kh-glass .kh-link,.kh-alt a{color:#f1d48a}
.kh-alt{text-align:center;font-size:13px;color:#8fa1c2;margin:14px 0 0}
.kh-trust{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 16px;margin-top:18px;padding-top:14px;border-top:1px solid rgba(140,175,235,.14);font-size:12px;color:#8fa1c2}
.kh-trust span{display:inline-flex;align-items:center;gap:6px}
.kh-trust svg{width:15px;height:15px;color:var(--g)}
.kh-foot{text-align:center;font-size:12px;color:#5f739a;margin:16px 0 0}
.kh-land .kh-msg.err{background:rgba(201,55,44,.18);color:#ffb4a8}.kh-land .kh-msg.ok{background:rgba(31,132,90,.2);color:#8ff0c2}
@media (max-width:899px){.kh-land{gap:16px}.kh-hero{display:contents}.kh-brand{order:0;margin:0}.kh-hero h1{order:1;margin:0;font-size:26px}.kh-panel{order:2}.kh-lead{order:3;margin:8px 0 0}.kh-feat{order:4}}
@media (max-width:899px){.kh-land{grid-template-columns:1fr}.kh-panel .kh-glass{max-width:520px;margin:0 auto}}
@media (max-width:420px){.kh-feat{grid-template-columns:1fr}}
@media (min-width:900px){.kh-land{grid-template-columns:1.15fr .85fr;align-items:center;gap:56px;padding:48px max(40px,calc((100vw - 1180px)/2))}.kh-glass{padding:32px 30px}}