/* Cong cu tinh han dang kiem + trang ngach theo loai xe (03/11/2026). Tu chua, khong phu thuoc bootstrap cua tool cu. */
:root{--tt-blue:#0b5cad;--tt-blue2:#1570cf;--tt-ink:#1d2433;--tt-mute:#5d6576;--tt-line:#dfe4ec;--tt-bg:#f4f7fb;--tt-card:#fff;--tt-ok:#0f8a5f;--tt-warn:#c77700;--tt-bad:#c62828;--tt-zalo:#0068ff}
*{box-sizing:border-box}
body{margin:0;background:var(--tt-bg);color:var(--tt-ink);font:16px/1.55 -apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--tt-blue)}
.tt-wrap{max-width:980px;margin:0 auto;padding:0 16px}
.tt-top{background:#fff;border-bottom:1px solid var(--tt-line)}
.tt-top-in{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:56px;flex-wrap:wrap}
.tt-logo img{display:block}
.tt-nav{display:flex;gap:4px;flex-wrap:wrap}
.tt-nav a{color:var(--tt-ink);text-decoration:none;padding:6px 10px;border-radius:8px;font-size:15px}
.tt-nav a:hover{background:#e8f1fc;color:var(--tt-blue)}
.tt-crumb{font-size:14px;color:var(--tt-mute);margin:14px 0 6px}
.tt-crumb a{color:var(--tt-mute)}
h1{font-size:30px;line-height:1.25;margin:8px 0 6px;color:var(--tt-blue)}
.tt-sub{margin:0 0 12px;color:var(--tt-mute)}
.tt-answer{background:#fff;border:1px solid var(--tt-line);border-left:5px solid var(--tt-blue);border-radius:12px;padding:12px 14px;margin:10px 0 16px}
.tt-card{background:var(--tt-card);border:1px solid var(--tt-line);border-radius:14px;padding:16px;margin:16px 0}
.tt-card h2{font-size:21px;margin:0 0 12px}
.tt-card h3{font-size:17px;margin:16px 0 6px}
.tt-note{font-size:13px;color:var(--tt-mute);margin:10px 0 0}
.tt-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--tt-blue);color:#fff;border:0;border-radius:999px;padding:10px 20px;font-weight:600;font-size:16px;text-decoration:none;cursor:pointer;min-height:44px}
.tt-btn:hover{background:#094a8c;color:#fff}
.tt-btn.ghost{background:#fff;color:var(--tt-blue);border:1px solid var(--tt-blue)}
.tt-btn.zalo{background:var(--tt-zalo)}
.tt-btn.zalo:hover{background:#0052cc}
.tt-btn[disabled]{opacity:.6;cursor:default}
/* form */
.tt-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 16px}
.tt-f{display:flex;flex-direction:column;gap:4px;font-size:14px;color:var(--tt-mute)}
.tt-form .full{grid-column:1/-1}
.tt-f select,.tt-f input[type=number],.tt-f input[type=date],.tt-f input[type=text]{width:100%;padding:10px;border:1px solid #c7cfdb;border-radius:10px;font-size:16px;background:#fff;color:var(--tt-ink);min-height:44px}
.tt-chk{display:flex;align-items:flex-start;gap:8px;font-size:15px;color:var(--tt-ink);cursor:pointer}
.tt-chk input{width:20px;height:20px;margin:2px 0 0;flex:0 0 auto}
.tt-seg{display:flex;flex-wrap:wrap;gap:6px}
.tt-seg button{border:1px solid var(--tt-line);background:#fff;border-radius:999px;padding:8px 14px;font-size:15px;cursor:pointer;color:var(--tt-ink);min-height:40px}
.tt-seg button.on{background:var(--tt-blue);border-color:var(--tt-blue);color:#fff}
.tt-hint{font-size:13px;color:var(--tt-mute)}
.tt-actions{grid-column:1/-1;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
/* ket qua */
.tt-out{margin-top:16px}
.tt-res{border-radius:14px;padding:16px;background:#eef5fd;border:1px solid #cfe0f5}
.tt-res.warn{background:#fff6e5;border-color:#f3d59b}
.tt-res.bad{background:#fdecea;border-color:#f3b8b3}
.tt-res .k{font-size:14px;color:var(--tt-mute);margin:0}
.tt-res .big{font-size:28px;font-weight:800;margin:2px 0;color:var(--tt-blue)}
.tt-res.warn .big{color:var(--tt-warn)}
.tt-res.bad .big{color:var(--tt-bad)}
.tt-res .left{font-weight:700}
.tt-res dl{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;margin:12px 0 0;font-size:15px}
.tt-res dt{color:var(--tt-mute)}
.tt-res dd{margin:0}
.tt-res ul{margin:6px 0 0;padding-left:20px}
.tt-err{color:var(--tt-bad);font-weight:600}
/* nhac Zalo */
.tt-remind{margin-top:14px;border:2px dashed #9cc2f5;border-radius:14px;padding:14px;background:#fff}
.tt-remind h3{margin:0 0 6px;font-size:18px}
.tt-remind .row{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.tt-remind .row .tt-f{flex:1 1 180px}
.tt-code{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:10px 0}
.tt-code b{font-size:26px;letter-spacing:2px;background:#e8f1fc;border-radius:10px;padding:6px 12px;font-variant-numeric:tabular-nums}
.tt-steps{margin:8px 0;padding-left:20px}
.tt-steps li{margin:4px 0}
.tt-on{color:var(--tt-ok);font-weight:700}
/* lich qua email */
.tt-cal{margin-top:14px;padding-top:12px;border-top:1px solid var(--tt-line)}
.tt-cal h4{margin:0 0 4px;font-size:16px}
.tt-cal-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:8px}
.tt-cal-row input{flex:1 1 200px;min-width:0;padding:10px;border:1px solid #c7cfdb;border-radius:10px;font-size:16px;min-height:44px}
.tt-or{font-size:13px;color:var(--tt-mute)}
#tt-gsi{min-height:44px}
/* bang */
.tt-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.tt-tbl{width:100%;border-collapse:collapse;font-size:15px}
.tt-tbl th,.tt-tbl td{border-bottom:1px solid var(--tt-line);padding:8px 6px;text-align:left;vertical-align:top}
.tt-tbl thead th{background:#eaf1fa;font-size:14px}
.tt-tbl tr.on td{background:#eaf8f2}
.tt-tbl td.n{white-space:nowrap;font-weight:600}
/* link ngach */
.tt-types{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px;margin:0;padding:0;list-style:none}
.tt-types a{display:block;border:1px solid var(--tt-line);border-radius:12px;padding:10px 12px;text-decoration:none;color:var(--tt-ink);background:#fff;height:100%}
.tt-types a:hover{border-color:var(--tt-blue)}
.tt-types b{display:block;color:var(--tt-blue);font-size:15px}
.tt-types span{font-size:13px;color:var(--tt-mute)}
.tt-types a.cur{border-color:var(--tt-blue);background:#eef5fd}
.tt-faq details{border-bottom:1px solid var(--tt-line);padding:10px 0}
.tt-faq summary{cursor:pointer;font-weight:600}
.tt-faq p{margin:8px 0 0}
.tt-src{font-size:14px}
.tt-src li{margin:4px 0}
.tt-ad{margin:16px 0;min-height:100px}
/* the Dora */
.tt-xl{display:flex;gap:12px;align-items:center;flex-wrap:wrap;background:#fff;border:1px solid var(--tt-line);border-radius:14px;padding:14px;margin:16px 0}
.tt-xl div{flex:1 1 260px}
.tt-xl p{margin:4px 0;font-size:14px;color:var(--tt-mute)}
.tt-foot{margin-top:30px;padding:20px 0;border-top:1px solid var(--tt-line);font-size:13px;color:var(--tt-mute)}
@media (max-width:640px){
  h1{font-size:24px}
  .tt-form{grid-template-columns:1fr}
  .tt-res .big{font-size:24px}
  .tt-tbl{font-size:14px}
}
/* tinh toan 03/11/2026 */
.tt-nav a.on{background:#e8f1fc;color:var(--tt-blue)}
.tt-tabs{margin-bottom:14px}
.tt-row{display:flex;gap:6px}
.tt-row select,.tt-row input{flex:1 1 0;min-width:0;padding:10px;border:1px solid #c7cfdb;border-radius:10px;font-size:16px;background:#fff;color:var(--tt-ink);min-height:44px}
.tt-f select{width:100%;padding:10px;border:1px solid #c7cfdb;border-radius:10px;font-size:16px;background:#fff;color:var(--tt-ink);min-height:44px}
.tt-steps li{margin:6px 0}
form[hidden],[hidden]{display:none!important}
@media (max-width:640px){.tt-nav{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;width:100%;padding-bottom:4px}.tt-nav a{white-space:nowrap}}