/* Layout: one narrow silk-paper column; hero with banner image, then steps, a product rail, the form, and a sticky selection bar. */
:root{
  --paper:#FAF5F3; --card:#FFFFFF; --ink:#24181D; --muted:#76646B; --line:#EADCD8;
  --plum:#7A1F3D; --plum-soft:#F4E3E8; --gold:#A97D3E; --ok:#2E7D5B; --err:#B3261E;
  --display:"Montserrat", "Helvetica Neue", Arial, sans-serif;
  --body:"Montserrat", "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#1A1316; --card:#241B1F; --ink:#F6ECEF; --muted:#BBA6AE; --line:#3A2C32;
  --plum:#E0809E; --plum-soft:#3A2029; --gold:#D6AE6E; --ok:#6CC79E; --err:#F2948C; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#1A1316; --card:#241B1F; --ink:#F6ECEF; --muted:#BBA6AE; --line:#3A2C32;
  --plum:#E0809E; --plum-soft:#3A2029; --gold:#D6AE6E; --ok:#6CC79E; --err:#F2948C; color-scheme:dark}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{background:var(--paper);color:var(--ink);font:15px/1.6 var(--body);margin:0;padding-bottom:96px}
.wrap,.hd,.ft,.ft-bottom{max-width:1040px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));box-sizing:content-box}
/* Mục được nhảy tới bằng menu: chừa chỗ cho header dính */
[id]{scroll-margin-top:84px}
h1,h2,h3{font-family:var(--display);font-weight:700;text-wrap:balance;margin:0;line-height:1.25;letter-spacing:-.01em}
h2{font-size:clamp(22px,3.4vw,28px)}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:600}
a{color:var(--plum)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--plum);outline-offset:2px}

/* header */
.top{display:flex;align-items:center;justify-content:space-between;padding-block:18px 8px;gap:12px}
.mark{font-family:var(--display);font-size:22px;letter-spacing:.18em;font-weight:600;color:var(--plum)}
.mark small{display:block;font-family:var(--body);font-size:10.5px;letter-spacing:.2em;color:var(--muted);font-weight:500}
.ref{font-size:12.5px;color:var(--muted);text-align:right}

/* hero */
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center;padding-block:24px 40px}
.hero h1{font-size:clamp(28px,4.4vw,44px);line-height:1.2;margin-top:10px;letter-spacing:-.02em}
.hero h1 em{font-style:italic;color:var(--plum);font-weight:700}
.lead{color:var(--muted);max-width:52ch;margin:16px 0 22px;font-size:16px}
.perks{display:flex;flex-wrap:wrap;gap:10px;margin:0;padding:0;list-style:none}
.perks li{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:7px 14px;font-size:13.5px}
.perks b{color:var(--plum)}
.cta{display:inline-flex;align-items:center;gap:8px;margin-top:24px;background:var(--plum);color:var(--paper);border:0;border-radius:999px;padding:13px 24px;font-weight:600;text-decoration:none;cursor:pointer}

/* about + steps */
.band{border-top:1px solid var(--line);padding-block:36px}
.about{display:grid;grid-template-columns:1fr 1.4fr;gap:28px}
.about p{margin:0 0 10px;color:var(--muted)}
.facts{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:6px}
.fact{border-left:2px solid var(--gold);padding:2px 0 2px 12px}
.fact b{display:block;font-family:var(--display);font-weight:700;font-size:18px;color:var(--ink)}
.fact span{font-size:13px;color:var(--muted)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:20px;counter-reset:s;padding:0;list-style:none}
.steps li{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;counter-increment:s}
.steps li::before{content:counter(s);display:inline-grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--plum-soft);color:var(--plum);font-weight:700;font-size:13px;margin-bottom:8px}
.steps b{display:block;margin-bottom:2px}
.steps span{font-size:13.5px;color:var(--muted)}

/* products */
.phead{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap}
.phead p{margin:6px 0 0;color:var(--muted);font-size:14px}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:20px}
.p{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;transition:border-color .15s}
.p.sel{border-color:var(--plum);box-shadow:0 0 0 2px var(--plum) inset}
.p img{width:100%;aspect-ratio:1;object-fit:cover;display:block}
.pb{padding:12px 12px 14px;display:flex;flex-direction:column;gap:6px;flex:1}
.code{font-size:11.5px;letter-spacing:.08em;color:var(--muted);font-variant-numeric:tabular-nums}
.pn{font-weight:600;line-height:1.35}
.price{font-weight:600}
.comm{display:flex;align-items:baseline;gap:6px;flex-wrap:wrap;background:var(--plum-soft);border-radius:6px;padding:6px 8px;font-size:13px}
.comm b{color:var(--plum);font-size:15px}
.swatches{font-size:12.5px;color:var(--muted)}
.pick{margin-top:auto;border:1px solid var(--plum);background:transparent;color:var(--plum);border-radius:999px;padding:8px 10px;font-weight:600;cursor:pointer}
.p.sel .pick{background:var(--plum);color:var(--paper)}
.pick:disabled{opacity:.4;cursor:not-allowed}

/* form */
form{display:grid;gap:22px;margin-top:20px}
fieldset{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:18px;margin:0;display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr))}
legend{font-family:var(--display);font-size:17px;font-weight:700;padding:0 6px}
.f{display:flex;flex-direction:column;gap:5px;min-width:0}
.f.full{grid-column:1/-1}
label{font-size:13.5px;font-weight:600}
label i{color:var(--plum);font-style:normal}
.hint{font-size:12.5px;color:var(--muted)}
input,select,textarea{width:100%;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:10px 12px;min-height:44px}
textarea{min-height:80px;resize:vertical}
.bad input,.bad select{border-color:var(--err)}
.msg{font-size:12.5px;color:var(--err)}
.chosen{grid-column:1/-1;display:grid;gap:12px}
.ch{display:grid;grid-template-columns:minmax(0,1fr) 150px 130px auto;gap:12px;align-items:center;border:1px dashed var(--line);border-radius:10px;padding:10px}
.ci{display:flex;gap:12px;align-items:center;min-width:0}
.ch img{width:64px;height:64px;object-fit:cover;border-radius:6px}
.ch .rm{border:0;background:none;color:var(--muted);cursor:pointer;font-size:13px;text-decoration:underline}
.empty{grid-column:1/-1;color:var(--muted);font-size:14px;padding:14px;border:1px dashed var(--line);border-radius:10px;text-align:center}
.agree{grid-column:1/-1;display:flex;gap:10px;align-items:flex-start;font-size:14px}
.agree input{width:20px;height:20px;min-height:0;margin-top:2px;flex:none}
.submit{justify-self:end;background:var(--plum);color:var(--paper);border:0;border-radius:999px;padding:14px 28px;font-weight:700;cursor:pointer}

/* result */
.result{border:1px solid var(--ok);background:var(--card);border-radius:12px;padding:20px;display:grid;gap:12px}
.result h3{font-size:22px;color:var(--ok)}
.result pre{white-space:pre-wrap;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:14px;margin:0;font:13.5px/1.55 var(--body);overflow-x:auto}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.ghost{border:1px solid var(--line);background:transparent;border-radius:999px;padding:10px 18px;cursor:pointer;font-weight:600}

/* sticky bar */
.bar{position:fixed;left:0;right:0;bottom:0;background:var(--ink);color:var(--paper);
  padding:12px max(16px,env(safe-area-inset-right,0px)) calc(12px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));
  display:flex;justify-content:center;z-index:5}
.bar .in{max-width:1040px;width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px}
.bar a{background:var(--paper);color:var(--ink);text-decoration:none;font-weight:700;border-radius:999px;padding:9px 18px;white-space:nowrap}
.foot{color:var(--muted);font-size:12.5px;padding-block:24px}

@media (max-width:860px){
  .hero,.about{grid-template-columns:1fr}
  .hero-img{order:-1}
  .grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .steps{grid-template-columns:repeat(2,1fr)}
  .facts{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:560px){
  fieldset{grid-template-columns:1fr;padding:14px}
  .ch{grid-template-columns:1fr 1fr}
  .ch .ci{grid-column:1/-1}
  .ch img{width:56px;height:56px}
  .ch .rm{grid-column:1/-1;justify-self:start}
  .steps{grid-template-columns:1fr}
  .pb{padding:10px}
  .comm{font-size:12px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
html{scroll-behavior:smooth}

/* additions for the Laravel version */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.p .noimg{width:100%;aspect-ratio:1;background:var(--plum-soft)}
.submit:disabled{opacity:.6;cursor:wait}
.f .msg:empty{display:none}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 88%,transparent);backdrop-filter:saturate(1.4) blur(10px);-webkit-backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid transparent;transition:border-color .2s,box-shadow .2s}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 24px rgba(36,24,29,.06)}
.hd{display:flex;align-items:center;gap:24px;height:72px}
.mark{display:inline-flex;align-items:center;flex:none;line-height:0}
.mark img{height:48px;width:auto;display:block}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{color:var(--ink);text-decoration:none;font-size:14px;font-weight:500;padding:8px 12px;border-radius:999px;transition:background .15s,color .15s}
.nav a:hover{background:var(--plum-soft);color:var(--plum)}
.nav a.on{color:var(--plum);font-weight:600}
.hd-right{display:flex;align-items:center;gap:12px;flex:none}
.ref{font-size:12.5px;color:var(--muted);white-space:nowrap}
.hd-cta{background:var(--plum);color:var(--paper);text-decoration:none;font-weight:600;font-size:14px;border-radius:999px;padding:10px 18px;white-space:nowrap}
.hd-cta:hover{filter:brightness(1.08)}
.menu-btn{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:12px;background:var(--card);padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s,opacity .2s}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.hero{padding-top:36px}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);margin-top:48px;background:var(--card)}
.ft{display:flex;justify-content:space-between;gap:32px;padding-top:32px;padding-bottom:24px;flex-wrap:wrap}
.ft-brand{max-width:420px}
.ft-brand img{height:44px;width:auto;display:block;margin-bottom:10px}
.ft-brand p{margin:0;color:var(--muted);font-size:13.5px}
.ft-links{display:grid;grid-template-columns:repeat(2,auto);gap:8px 32px;align-content:start}
.ft-links a{color:var(--ink);text-decoration:none;font-size:14px}
.ft-links a:hover{color:var(--plum)}
.ft-bottom{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:14px;padding-bottom:18px;color:var(--muted);font-size:12.5px}

/* logo SVG màu đen: đảo sang trắng ở dark mode */
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .mark img,:root:not([data-theme="light"]) .ft-brand img{filter:invert(1)}}
:root[data-theme="dark"] .mark img,:root[data-theme="dark"] .ft-brand img{filter:invert(1)}

@media (max-width:860px){
  .hd{height:64px;gap:12px}
  .mark img{height:42px}
  .menu-btn{display:inline-flex}
  .ref{display:none}
  .nav{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:8px max(16px,env(safe-area-inset-left,0px)) 14px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(36,24,29,.08);display:none}
  .nav.open{display:flex}
  .nav a{padding:12px 4px;border-radius:0;border-bottom:1px solid var(--line);font-size:15px}
  .nav a:last-child{border-bottom:0}
  .nav a:hover{background:none}
  .hd-right{margin-left:auto}
  .hero{padding-top:20px}
  [id]{scroll-margin-top:76px}
}
@media (max-width:420px){.hd-cta{padding:9px 14px;font-size:13px}.mark img{height:38px}}

/* ---------- ô chọn có tìm kiếm (tỉnh / phường) ---------- */
.ss-native{position:absolute!important;width:1px!important;height:1px!important;min-height:0!important;padding:0!important;border:0!important;opacity:0;pointer-events:none}
.f{position:relative}
.ss{position:relative}
.ss-btn{width:100%;min-height:44px;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:10px 38px 10px 12px;text-align:left;cursor:pointer;color:var(--ink);position:relative;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ss-btn::after{content:"";position:absolute;right:14px;top:50%;width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:translateY(-70%) rotate(45deg)}
.ss-btn.ss-empty{color:var(--muted)}
.ss-btn:disabled{cursor:not-allowed;opacity:.6}
.ss-btn[aria-expanded="true"]{border-color:var(--plum)}
.bad .ss-btn{border-color:var(--err)}
.ss-panel{position:absolute;left:0;right:0;top:calc(100% + 4px);z-index:15;background:var(--card);border:1px solid var(--line);border-radius:10px;box-shadow:0 14px 34px rgba(36,24,29,.16);padding:8px}
.ss-input{min-height:40px;margin-bottom:6px;background:var(--paper)}
.ss-list{list-style:none;margin:0;padding:0;max-height:264px;overflow-y:auto;overscroll-behavior:contain}
.ss-opt{padding:9px 10px;border-radius:6px;cursor:pointer;font-size:14.5px}
.ss-opt.on{background:var(--plum-soft);color:var(--plum)}
.ss-opt[aria-selected="true"]{font-weight:600}
.ss-none{padding:12px 10px;color:var(--muted);font-size:14px}
@media (max-width:560px){.ss-list{max-height:45vh}}

/* ảnh banner đầu trang */
.hero-img{display:block;min-width:0}
.hero-img img{display:block;width:100%;height:auto;border-radius:18px;box-shadow:0 18px 40px rgba(60,20,70,.18);background:var(--line)}
@media (max-width:860px){.hero-img img{border-radius:14px}}

/* tra cứu phiếu theo SĐT */
.lookup{border:1px solid var(--line);background:var(--card);border-radius:12px;padding:16px 18px;margin-bottom:28px}
.lookup-head{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline;margin-bottom:10px}
.lookup-head b{font-size:15px}
.lookup-head span{color:var(--muted);font-size:13.5px}
.lookup-form{display:flex;gap:10px;max-width:520px}
.lookup-form input{flex:1;min-width:0}
.lookup-form button{flex:none;border:0;border-radius:8px;background:var(--plum);color:var(--paper);font-weight:600;padding:0 20px;min-height:44px;cursor:pointer}
.lookup-form button:disabled{opacity:.6;cursor:wait}
.lookup-msg{font-size:13.5px;color:var(--muted);margin-top:10px}
.lookup-msg:empty{display:none}
.lookup-msg.err{color:var(--err)}
.lookup-list{display:grid;gap:10px;margin-top:10px}
.lookup-list:empty{display:none}
.lk{border:1px dashed var(--line);border-radius:10px;padding:12px 14px;display:grid;gap:6px}
.lk-top{display:flex;flex-wrap:wrap;gap:6px 12px;align-items:center}
.lk-st{font-size:12.5px;font-weight:700;border-radius:999px;padding:3px 10px;background:var(--plum-soft);color:var(--plum)}
.lk-st.st-new{background:#fef3c7;color:#92400e}
.lk-st.st-approved{background:#d1fae5;color:#065f46}
.lk-st.st-rejected{background:#f1f5f9;color:#475569}
.lk-date{font-size:12.5px;color:var(--muted)}
.lk-items{display:grid;gap:2px;font-size:14px}
.lk-items span{color:var(--muted);font-size:12.5px}
.lk-note{font-size:13px;color:var(--muted)}
@media (max-width:560px){.lookup{padding:14px}.lookup-form{flex-direction:column}.lookup-form button{width:100%}}

/* nút gửi: bên phải trên máy tính, full chiều ngang trên điện thoại */
@media (max-width:560px){#f > .submit{justify-self:stretch}}
#formMsg{text-align:right}
@media (max-width:560px){#formMsg{text-align:left}}