/* AUTO & MOTO DOCTOR – giao diện. Mobile-first, sáng/tối, pastel. */
:root{
  --font-ui: Arial, "Helvetica Neue", Helvetica, "Segoe UI", sans-serif;
  --font-display: "Times New Roman", Times, "Liberation Serif", serif;
  --bg:#f5f3ee; --bg-2:#efece5; --surface:#ffffff; --surface-2:#f8f7f3; --surface-3:#f1efe9;
  --ink:#1d2a30; --ink-2:#3d4c53; --sub:#66757b; --line:#e4e1d9; --line-2:#d5d1c7;
  --brand:#1f5f6b; --brand-ink:#ffffff; --brand-soft:#dcefee; --brand-2:#2c7d86;
  --accent:#c4763c;
  --mint:#e1f3ea; --mint-ink:#1e6b4c; --sky:#e3eefb; --sky-ink:#255a95; --peach:#fde9de; --peach-ink:#9a4a1f;
  --lav:#ece8fb; --lav-ink:#5a46a5; --butter:#fbf2d5; --butter-ink:#7d5e0b; --rose:#fbe5e8; --rose-ink:#a12b3e; --sage:#e7efe3; --sage-ink:#3f6b33;
  --stop:#b4233c; --stop-soft:#fde7ea; --soon:#a35f00; --soon-soft:#fff2d6; --info:#2463a6; --info-soft:#e6f0fb; --ok:#1e7a55; --ok-soft:#e1f5ec;
  --lamp-red:#e0352b; --lamp-amber:#f0a500; --lamp-green:#22a95b; --lamp-blue:#2f7fe0; --lamp-white:#e8eef0; --lamp-bg:#14191c;
  --shadow-1:0 1px 2px rgba(23,35,40,.06),0 4px 14px rgba(23,35,40,.06);
  --shadow-2:0 10px 34px rgba(23,35,40,.14);
  --radius:18px; --radius-sm:12px; --radius-xs:9px;
  --sat:env(safe-area-inset-top,0px); --sab:env(safe-area-inset-bottom,0px); --sal:env(safe-area-inset-left,0px); --sar:env(safe-area-inset-right,0px);
  --topbar-h:58px; --bottom-h:66px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0f1517; --bg-2:#131b1e; --surface:#172024; --surface-2:#1b2529; --surface-3:#212d32;
    --ink:#e7eef0; --ink-2:#c5d1d5; --sub:#97a8ae; --line:#28353a; --line-2:#334349;
    --brand:#7cc7cb; --brand-ink:#0d1a1c; --brand-soft:#1d3537; --brand-2:#9bd6d8; --accent:#e3a06c;
    --mint:#183429; --mint-ink:#8fdcb8; --sky:#172a3f; --sky-ink:#9cc3f1; --peach:#3a2519; --peach-ink:#f2b591; --lav:#252040; --lav-ink:#bfb1f5; --butter:#352d14; --butter-ink:#efd387; --rose:#3a1b22; --rose-ink:#f3a4b2; --sage:#1f2d1c; --sage-ink:#b6d6a8;
    --stop:#ff7f93; --stop-soft:#3a1b22; --soon:#f2b45a; --soon-soft:#36290f; --info:#8dbbf2; --info-soft:#172a3f; --ok:#79d9ad; --ok-soft:#163327;
    --shadow-1:0 1px 2px rgba(0,0,0,.35),0 4px 14px rgba(0,0,0,.25); --shadow-2:0 12px 40px rgba(0,0,0,.5);
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --bg:#0f1517; --bg-2:#131b1e; --surface:#172024; --surface-2:#1b2529; --surface-3:#212d32;
  --ink:#e7eef0; --ink-2:#c5d1d5; --sub:#97a8ae; --line:#28353a; --line-2:#334349;
  --brand:#7cc7cb; --brand-ink:#0d1a1c; --brand-soft:#1d3537; --brand-2:#9bd6d8; --accent:#e3a06c;
  --mint:#183429; --mint-ink:#8fdcb8; --sky:#172a3f; --sky-ink:#9cc3f1; --peach:#3a2519; --peach-ink:#f2b591; --lav:#252040; --lav-ink:#bfb1f5; --butter:#352d14; --butter-ink:#efd387; --rose:#3a1b22; --rose-ink:#f3a4b2; --sage:#1f2d1c; --sage-ink:#b6d6a8;
  --stop:#ff7f93; --stop-soft:#3a1b22; --soon:#f2b45a; --soon-soft:#36290f; --info:#8dbbf2; --info-soft:#172a3f; --ok:#79d9ad; --ok-soft:#163327;
  --shadow-1:0 1px 2px rgba(0,0,0,.35),0 4px 14px rgba(0,0,0,.25); --shadow-2:0 12px 40px rgba(0,0,0,.5);
  color-scheme: dark;
}
:root[data-font="times"]{ --font-ui: "Times New Roman", Times, "Liberation Serif", serif; }

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-ui);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh;min-height:100dvh}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;line-height:1.18;margin:0 0 .4em;letter-spacing:.1px}
h1{font-size:clamp(26px,5.5vw,38px)} h2{font-size:clamp(21px,4vw,27px)} h3{font-size:19px} h4{font-size:17px}
p{margin:0 0 .7em}
a{color:var(--brand)} a:hover{color:var(--brand-2)}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
svg{flex:none}
img{max-width:100%;height:auto}
:focus-visible{outline:3px solid var(--brand-2);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-999px;top:0;background:var(--brand);color:var(--brand-ink);padding:10px 14px;z-index:200;border-radius:0 0 10px 0}
.skip:focus{left:0}
.sr{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.muted{color:var(--sub)} .small{font-size:14px} .tiny{font-size:12.5px}
.nowrap{white-space:nowrap}
.mt0{margin-top:0}.mt1{margin-top:8px}.mt2{margin-top:16px}.mt3{margin-top:24px}.mb0{margin-bottom:0}.mb1{margin-bottom:8px}.mb2{margin-bottom:16px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row.between{justify-content:space-between}
.grow{flex:1 1 auto;min-width:0}
.stack>*+*{margin-top:12px}

/* ---------- Khung ứng dụng ---------- */
.app{min-height:100vh;min-height:100dvh}
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:10px;padding:calc(8px + var(--sat)) calc(14px + var(--sar)) 8px calc(14px + var(--sal));min-height:calc(var(--topbar-h) + var(--sat));background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.topbar .brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);min-width:0}
.topbar .brand b{font-family:var(--font-display);font-size:17px;letter-spacing:.6px;white-space:nowrap}
.topbar .brand small{display:block;font-size:11.5px;color:var(--sub);letter-spacing:.2px;white-space:nowrap}
.logo{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(140deg,#1f5f6b,#3b8f8f);color:#fff;box-shadow:inset 0 0 0 1px rgba(255,255,255,.18)}
.logo svg{width:24px;height:24px}
.topbar .brand>span{min-width:0;overflow:hidden}
@media(max-width:430px){.topbar .brand small{display:none}.topbar .brand b{font-size:15px;letter-spacing:.2px}}
@media(max-width:360px){.topbar .brand>span{display:none}}
.vehchip{margin-left:auto;flex:0 1 auto;min-width:0;display:flex;align-items:center;gap:7px;max-width:46vw;border:1px solid var(--line-2);background:var(--surface);border-radius:999px;padding:6px 11px 6px 7px;font-size:13.5px;color:var(--ink);min-height:40px}
.vehchip svg{width:22px;height:22px;color:var(--brand)}
.vehchip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.iconbtn{width:42px;height:42px;border-radius:12px;border:1px solid var(--line-2);background:var(--surface);display:grid;place-items:center;color:var(--ink-2);padding:0}
.iconbtn svg{width:21px;height:21px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.iconbtn:hover{border-color:var(--brand)}
.main{padding:16px calc(16px + var(--sar)) calc(var(--bottom-h) + 28px + var(--sab)) calc(16px + var(--sal));max-width:1180px;margin:0 auto;outline:none}
.sidebar{display:none}
.bottomnav{position:fixed;left:0;right:0;bottom:0;z-index:45;display:grid;grid-template-columns:repeat(5,1fr);padding:6px calc(6px + var(--sar)) calc(6px + var(--sab)) calc(6px + var(--sal));background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-top:1px solid var(--line)}
.bottomnav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:52px;text-decoration:none;color:var(--sub);font-size:11.5px;border-radius:12px;font-weight:600}
.bottomnav a svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.bottomnav a.on{color:var(--brand);background:var(--brand-soft)}
@media (min-width:1024px){
  .app{display:grid;grid-template-columns:268px minmax(0,1fr)}
  .topbar{grid-column:2}
  .sidebar{display:flex;flex-direction:column;gap:6px;grid-row:1 / span 3;position:sticky;top:0;height:100vh;height:100dvh;overflow:auto;padding:18px 14px;border-right:1px solid var(--line);background:var(--surface-2)}
  .topbar .brand{display:none}
  .main{grid-column:2;padding:24px 32px 48px;width:100%}
  .bottomnav{display:none}
}
.sidebar .brand{display:flex;align-items:center;gap:10px;padding:4px 8px 14px;text-decoration:none;color:var(--ink)}
.sidebar .brand b{font-family:var(--font-display);font-size:18px;letter-spacing:.6px;display:block}
.sidebar .brand small{color:var(--sub);font-size:12px}
.sidebar .logo{width:42px;height:42px}
.navsec{font-size:11.5px;text-transform:uppercase;letter-spacing:1.4px;color:var(--sub);padding:12px 10px 4px}
.sidebar a.nav{display:flex;align-items:center;gap:11px;padding:10px 11px;border-radius:12px;color:var(--ink-2);text-decoration:none;font-size:15px;min-height:42px}
.sidebar a.nav svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;color:var(--sub)}
.sidebar a.nav:hover{background:var(--surface-3)}
.sidebar a.nav.on{background:var(--brand-soft);color:var(--brand);font-weight:700}
.sidebar a.nav.on svg{color:var(--brand)}
.sidebar .sidefoot{margin-top:auto;font-size:12px;color:var(--sub);padding:14px 10px 4px;border-top:1px solid var(--line)}
.sidebar .sidefoot a{color:var(--sub)}

.boot{display:grid;place-items:center;gap:10px;padding:80px 10px;color:var(--sub)}
.boot-mark{width:46px;height:46px;border-radius:14px;background:linear-gradient(140deg,#1f5f6b,#3b8f8f);animation:pulse 1.4s ease-in-out infinite}
@keyframes pulse{50%{transform:scale(.9);opacity:.7}}

/* ---------- Thành phần ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-1)}
.card.flat{box-shadow:none}
.card.tint{background:var(--surface-2)}
.card h3:first-child,.card h2:first-child{margin-top:0}
.grid{display:grid;gap:12px}
.grid.c2{grid-template-columns:repeat(auto-fill,minmax(min(100%,300px),1fr))}
.grid.c3{grid-template-columns:repeat(auto-fill,minmax(min(100%,230px),1fr))}
.grid.c4{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 16px;border-radius:13px;border:1px solid var(--line-2);background:var(--surface);color:var(--ink);font-weight:700;font-size:15px;text-decoration:none;line-height:1.2;text-align:center}
.btn svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.btn:hover{border-color:var(--brand)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.btn.primary:hover{filter:brightness(1.06)}
.btn.danger{background:var(--stop);border-color:var(--stop);color:#fff}
.btn.ghost{background:transparent}
.btn.sm{min-height:38px;padding:7px 12px;font-size:14px;border-radius:11px}
.btn.block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btns{display:flex;flex-wrap:wrap;gap:9px}
.field{width:100%;min-height:46px;border:1px solid var(--line-2);border-radius:12px;background:var(--surface);color:var(--ink);padding:10px 12px;font-size:16px}
textarea.field{min-height:92px;resize:vertical}
select.field{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--sub) 50%),linear-gradient(135deg,var(--sub) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat;padding-right:34px}
label.lbl{display:block;font-size:13.5px;font-weight:700;color:var(--ink-2);margin:12px 0 5px}
.form2{display:grid;grid-template-columns:1fr;gap:0 12px}
@media(min-width:620px){.form2{grid-template-columns:1fr 1fr}}
.check{display:flex;gap:10px;align-items:flex-start;padding:10px 4px;border-bottom:1px dashed var(--line)}
.check input{width:22px;height:22px;margin:1px 0 0;accent-color:var(--brand);flex:none}
.pill{display:inline-flex;align-items:center;gap:5px;border-radius:999px;padding:3px 10px;font-size:12.5px;font-weight:700;line-height:1.5;white-space:nowrap}
.pill.stop{background:var(--stop-soft);color:var(--stop)} .pill.soon{background:var(--soon-soft);color:var(--soon)} .pill.info{background:var(--info-soft);color:var(--info)} .pill.ok{background:var(--ok-soft);color:var(--ok)} .pill.neutral{background:var(--surface-3);color:var(--ink-2)}
.pill.self{background:var(--mint);color:var(--mint-ink)} .pill.tool{background:var(--butter);color:var(--butter-ink)} .pill.pro{background:var(--lav);color:var(--lav-ink)}
.pill svg{width:13px;height:13px;fill:none;stroke:currentColor;stroke-width:2.2}
.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 2px 8px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
.chip{flex:none;border:1px solid var(--line-2);background:var(--surface);border-radius:999px;padding:8px 14px;font-size:14px;color:var(--ink-2);min-height:40px}
.chip.on{background:var(--ink);border-color:var(--ink);color:var(--bg)}
.notice{display:flex;gap:12px;align-items:flex-start;border-radius:14px;padding:13px 14px;border:1px solid var(--line);background:var(--surface-2);font-size:14.5px}
.notice svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;margin-top:1px}
.notice.stop{background:var(--stop-soft);border-color:color-mix(in srgb,var(--stop) 30%,transparent);color:var(--ink)} .notice.stop svg{color:var(--stop)}
.notice.soon{background:var(--soon-soft);border-color:color-mix(in srgb,var(--soon) 30%,transparent)} .notice.soon svg{color:var(--soon)}
.notice.info{background:var(--info-soft);border-color:color-mix(in srgb,var(--info) 25%,transparent)} .notice.info svg{color:var(--info)}
.notice.ok{background:var(--ok-soft);border-color:color-mix(in srgb,var(--ok) 25%,transparent)} .notice.ok svg{color:var(--ok)}
.notice b{display:block;margin-bottom:2px}
.notice p:last-child{margin-bottom:0}
.empty{text-align:center;padding:28px 14px;color:var(--sub);border:1px dashed var(--line-2);border-radius:var(--radius);background:var(--surface-2)}
.empty svg.art{width:150px;height:auto;margin:0 auto 8px;display:block}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;font-size:14.5px}
.kv dt{color:var(--sub)} .kv dd{margin:0;font-weight:600}
.section-h{display:flex;align-items:flex-end;justify-content:space-between;gap:10px;margin:26px 0 12px;flex-wrap:wrap}
.section-h h2{margin:0}
.section-h a{font-size:14px;font-weight:700;text-decoration:none}
.crumbs{font-size:13.5px;color:var(--sub);margin:0 0 10px;display:flex;gap:6px;flex-wrap:wrap}
.crumbs a{color:var(--sub);text-decoration:none} .crumbs a:hover{color:var(--brand)}
.pagehead{margin:4px 0 16px}
.pagehead p{color:var(--sub);max-width:760px}
hr.sep{border:0;border-top:1px solid var(--line);margin:18px 0}
.tag-src{font-size:12.5px;display:inline-flex;gap:5px;align-items:center;padding:3px 9px;border-radius:999px;font-weight:700}
.tag-src.verified{background:var(--ok-soft);color:var(--ok)} .tag-src.reachable{background:var(--info-soft);color:var(--info)} .tag-src.unverified,.tag-src.blocked{background:var(--soon-soft);color:var(--soon)} .tag-src.secondary{background:var(--surface-3);color:var(--ink-2)}
details.acc{border:1px solid var(--line);border-radius:14px;background:var(--surface);margin:8px 0}
details.acc>summary{cursor:pointer;padding:13px 14px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:10px;align-items:center}
details.acc>summary::-webkit-details-marker{display:none}
details.acc>summary::after{content:'';width:9px;height:9px;border-right:2px solid var(--sub);border-bottom:2px solid var(--sub);transform:rotate(45deg);transition:transform .2s;flex:none;margin-right:4px}
details.acc[open]>summary::after{transform:rotate(-135deg)}
details.acc>.acc-body{padding:0 14px 14px}
ul.clean,ol.clean{margin:6px 0;padding-left:20px} ul.clean li,ol.clean li{margin:5px 0}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
table.tbl{border-collapse:collapse;width:100%;font-size:14px;min-width:560px}
table.tbl th,table.tbl td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
table.tbl th{background:var(--surface-2);font-size:12.5px;text-transform:uppercase;letter-spacing:.6px;color:var(--sub)}
table.tbl tr:last-child td{border-bottom:0}

/* ---------- Trang chủ ---------- */
.hero{position:relative;overflow:hidden;border-radius:24px;padding:22px 18px 18px;background:linear-gradient(150deg,#e3f1ee 0%,#eef3fb 55%,#fbefe5 100%);border:1px solid var(--line);margin-bottom:16px}
:root[data-theme="dark"] .hero{background:linear-gradient(150deg,#16292b 0%,#17222f 55%,#2a2019 100%)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .hero{background:linear-gradient(150deg,#16292b 0%,#17222f 55%,#2a2019 100%)}}
.hero .eyebrow{font-size:12px;letter-spacing:2.4px;text-transform:uppercase;color:var(--brand);font-weight:700}
.hero h1{margin:8px 0 6px;max-width:620px}
.hero p.lead{color:var(--ink-2);max-width:560px;margin-bottom:14px}
.hero{display:grid;grid-template-columns:minmax(0,1fr);gap:8px;align-items:center}
.hero .art{width:100%;max-width:300px;display:block;margin:4px auto -6px;pointer-events:none}
.hero-inner{position:relative;z-index:2;min-width:0}
@media(min-width:900px){.hero{grid-template-columns:minmax(0,1.5fr) minmax(240px,.8fr);padding:26px 26px 22px}.hero .art{max-width:400px;margin:0}}
@media(max-width:899px){.examples{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;-webkit-overflow-scrolling:touch}.examples::-webkit-scrollbar{display:none}.examples button{flex:none}.hero{order:0}}
h1[tabindex="-1"]:focus,h1[tabindex="-1"]:focus-visible{outline:none}
.ic{width:1.15em;height:1.15em;vertical-align:-.2em}
.badge-np svg{width:15px;height:15px}
.search{position:relative;max-width:640px}
.search input{width:100%;min-height:56px;border-radius:16px;border:1.5px solid var(--line-2);background:var(--surface);padding:12px 54px 12px 48px;font-size:16.5px;box-shadow:var(--shadow-1)}
.search input:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 4px color-mix(in srgb,var(--brand) 18%,transparent)}
.search .s-ico{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:22px;height:22px;color:var(--sub);fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.search button{position:absolute;right:7px;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:12px;border:0;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center}
.search button svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.examples{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}
.examples button{border:1px dashed var(--line-2);background:color-mix(in srgb,var(--surface) 70%,transparent);border-radius:999px;padding:6px 11px;font-size:13px;color:var(--ink-2);min-height:34px}
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media(min-width:620px){.tiles{grid-template-columns:repeat(3,1fr)}}
@media(min-width:960px){.tiles{grid-template-columns:repeat(5,1fr)}}
.tile{display:flex;flex-direction:column;gap:8px;align-items:flex-start;text-align:left;min-height:118px;padding:14px;border-radius:18px;border:1px solid var(--line);background:var(--surface);color:var(--ink);text-decoration:none;box-shadow:var(--shadow-1);transition:transform .16s ease,border-color .16s ease}
.tile:hover{transform:translateY(-2px);border-color:var(--line-2)}
.tile .ti{width:44px;height:44px;border-radius:13px;display:grid;place-items:center}
.tile .ti svg{width:25px;height:25px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tile b{font-size:15px;line-height:1.25}
.tile small{color:var(--sub);font-size:12.5px;line-height:1.35}
.t-mint .ti{background:var(--mint);color:var(--mint-ink)} .t-sky .ti{background:var(--sky);color:var(--sky-ink)} .t-peach .ti{background:var(--peach);color:var(--peach-ink)} .t-lav .ti{background:var(--lav);color:var(--lav-ink)} .t-butter .ti{background:var(--butter);color:var(--butter-ink)} .t-rose .ti{background:var(--rose);color:var(--rose-ink)} .t-sage .ti{background:var(--sage);color:var(--sage-ink)}
.statline{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.statline span{font-size:12.5px;padding:5px 10px;border-radius:999px;background:color-mix(in srgb,var(--surface) 75%,transparent);border:1px solid var(--line);color:var(--ink-2)}
.duelist{display:grid;gap:8px}
.due{display:flex;align-items:center;gap:12px;padding:12px;border-radius:14px;border:1px solid var(--line);background:var(--surface)}
.due .dot{width:10px;height:10px;border-radius:50%;flex:none}
.due.over .dot{background:var(--stop)} .due.soon .dot{background:var(--soon)} .due.ok .dot{background:var(--ok)}

/* ---------- Danh sách mục ---------- */
.items{display:grid;gap:10px;grid-template-columns:repeat(auto-fill,minmax(min(100%,290px),1fr))}
.item{display:flex;gap:12px;align-items:flex-start;text-align:left;padding:13px;border-radius:16px;border:1px solid var(--line);background:var(--surface);color:var(--ink);text-decoration:none;box-shadow:var(--shadow-1);min-height:96px;transition:border-color .15s}
.item:hover{border-color:var(--brand)}
.item .meta{flex:1;min-width:0}
.item b{display:block;font-size:15.5px;line-height:1.28;margin-bottom:3px}
.item p{font-size:13.5px;color:var(--sub);margin:4px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.item .tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:4px}
.lamp{width:58px;height:58px;border-radius:15px;background:var(--lamp-bg);display:grid;place-items:center;flex:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.06),inset 0 -8px 16px rgba(0,0,0,.35)}
.lamp svg{width:38px;height:38px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.lamp.red{color:var(--lamp-red);filter:drop-shadow(0 0 0 transparent)} .lamp.amber{color:var(--lamp-amber)} .lamp.green{color:var(--lamp-green)} .lamp.blue{color:var(--lamp-blue)} .lamp.white{color:var(--lamp-white)}
.lamp.red svg,.lamp.amber svg,.lamp.green svg,.lamp.blue svg{filter:drop-shadow(0 0 4px currentColor)}
.lamp.lg{width:96px;height:96px;border-radius:24px} .lamp.lg svg{width:64px;height:64px}
.symi{width:54px;height:54px;border-radius:15px;display:grid;place-items:center;flex:none;background:var(--surface-3);color:var(--ink-2)}
.symi svg{width:30px;height:30px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.symi.stop{background:var(--stop-soft);color:var(--stop)} .symi.soon{background:var(--soon-soft);color:var(--soon)} .symi.info{background:var(--info-soft);color:var(--info)}
.toolbar{display:grid;grid-template-columns:1fr;gap:10px;margin-bottom:10px}
@media(min-width:620px){.toolbar{grid-template-columns:1fr 200px}}
.inline-search{position:relative}
.inline-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:19px;height:19px;color:var(--sub);fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.inline-search input{padding-left:40px}

/* ---------- Chi tiết ---------- */
.detail-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:14px}
.detail-head h1{font-size:clamp(24px,5vw,34px);margin:6px 0 4px}
.detail-grid{display:grid;gap:16px}
@media(min-width:980px){.detail-grid{grid-template-columns:minmax(0,1.35fr) minmax(300px,.9fr);align-items:start}.detail-grid aside{position:sticky;top:calc(var(--topbar-h) + 18px)}}
.sec{margin-top:16px}
.sec h3{display:flex;align-items:center;gap:9px}
.sec h3 .n{width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-family:var(--font-ui);font-size:13px}
.checkrow{display:flex;gap:10px;align-items:flex-start;padding:9px 0;border-bottom:1px dashed var(--line)}
.checkrow:last-child{border-bottom:0}
.levels{display:flex;gap:6px;flex-wrap:wrap;font-size:12.5px;color:var(--sub);margin:4px 0 8px}
.srcbox{border-radius:14px;border:1px solid var(--line);padding:13px;background:var(--surface-2);font-size:14px}
.srcbox a{display:block;margin-top:7px;overflow-wrap:anywhere}
.related{display:flex;flex-wrap:wrap;gap:7px}
.related a{font-size:13.5px;text-decoration:none;padding:6px 11px;border-radius:999px;background:var(--surface-3);color:var(--ink-2);border:1px solid var(--line)}
.related a:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- Chẩn đoán ---------- */
.progress{height:8px;border-radius:99px;background:var(--surface-3);overflow:hidden;margin:6px 0 14px}
.progress i{display:block;height:100%;background:linear-gradient(90deg,var(--brand),var(--brand-2));border-radius:99px;transition:width .3s ease}
.qcard{border-radius:20px;border:1px solid var(--line);background:var(--surface);padding:18px;box-shadow:var(--shadow-1)}
.qcard h2{font-size:clamp(20px,4.4vw,25px)}
.opts{display:grid;gap:9px;margin-top:12px}
.opt{display:flex;align-items:center;gap:12px;width:100%;text-align:left;min-height:54px;padding:12px 14px;border-radius:14px;border:1.5px solid var(--line-2);background:var(--surface-2);font-size:15.5px;color:var(--ink)}
.opt:hover{border-color:var(--brand)}
.opt.on{border-color:var(--brand);background:var(--brand-soft);font-weight:700}
.opt .radio{width:20px;height:20px;border-radius:50%;border:2px solid var(--line-2);flex:none;display:grid;place-items:center}
.opt.on .radio{border-color:var(--brand)} .opt.on .radio::after{content:'';width:10px;height:10px;border-radius:50%;background:var(--brand)}
.answers{display:grid;gap:6px;font-size:14px}
.answers .a{display:flex;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:10px;background:var(--surface-2);border:1px solid var(--line)}
.answers .a button{border:0;background:none;color:var(--brand);font-weight:700;padding:0 4px;font-size:13px}
.hyp{border:1px solid var(--line);border-radius:16px;background:var(--surface);margin:10px 0;overflow:hidden}
.hyp>summary{list-style:none;cursor:pointer;padding:14px;display:flex;gap:10px;align-items:flex-start;justify-content:space-between}
.hyp>summary::-webkit-details-marker{display:none}
.hyp .hb{padding:0 14px 14px}
.hyp .evid{font-size:13px;color:var(--sub);margin-top:4px}
.hyp.strong{border-left:5px solid var(--brand)} .hyp.weak{border-left:5px solid var(--soon)} .hyp.against{border-left:5px solid var(--line-2);opacity:.85} .hyp.confirmed{border-left:5px solid var(--ok)}
.flow{display:grid;gap:8px;grid-template-columns:1fr;margin:10px 0}
@media(min-width:760px){.flow{grid-template-columns:repeat(4,1fr)}}
.flow .fstep{border-radius:14px;padding:12px;border:1px solid var(--line);background:var(--surface);position:relative;font-size:13.5px}
.flow .fstep b{display:block;font-size:12px;text-transform:uppercase;letter-spacing:1px;color:var(--sub);margin-bottom:4px}
.flow .fstep ul{margin:0;padding-left:16px}
@media(min-width:760px){.flow .fstep:not(:last-child)::after{content:'';position:absolute;right:-9px;top:50%;width:10px;height:10px;border-top:2px solid var(--line-2);border-right:2px solid var(--line-2);transform:translateY(-50%) rotate(45deg);background:var(--bg);z-index:1}}
.f1{background:var(--sky)!important} .f2{background:var(--peach)!important} .f3{background:var(--butter)!important} .f4{background:var(--mint)!important}

/* ---------- Sơ đồ ---------- */
.dg-card{display:flex;flex-direction:column;border-radius:18px;border:1px solid var(--line);background:var(--surface);overflow:hidden;text-decoration:none;color:var(--ink);box-shadow:var(--shadow-1)}
.dg-card .thumb{aspect-ratio:16/10;background:var(--surface-2);border-bottom:1px solid var(--line);display:grid;place-items:center;overflow:hidden}
.dg-card .thumb svg{width:100%;height:100%}
.dg-card .cap{padding:12px 14px}
.dg-card .cap b{display:block;font-size:15.5px}
.viewer{position:relative;border-radius:18px;border:1px solid var(--line);background:var(--surface-2);overflow:hidden;touch-action:none;user-select:none;-webkit-user-select:none}
.viewer .stage{aspect-ratio:16/10;width:100%;overflow:hidden;cursor:grab;position:relative}
.viewer .stage.grabbing{cursor:grabbing}
.viewer .stage>svg{width:100%;height:100%;transform-origin:0 0;display:block}
.viewer .vtools{position:absolute;right:10px;top:10px;display:flex;flex-direction:column;gap:6px;z-index:3}
.viewer .vtools button{width:42px;height:42px;border-radius:12px;border:1px solid var(--line-2);background:color-mix(in srgb,var(--surface) 92%,transparent);display:grid;place-items:center;color:var(--ink)}
.viewer .vtools svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.viewer .vnote{position:absolute;left:10px;bottom:8px;font-size:11.5px;color:var(--sub);background:color-mix(in srgb,var(--surface) 85%,transparent);padding:3px 8px;border-radius:8px;z-index:3;max-width:calc(100% - 20px)}
.viewer.full{position:fixed;inset:0;z-index:80;border-radius:0;border:0;padding:var(--sat) var(--sar) var(--sab) var(--sal);background:var(--bg)}
.viewer.full .stage{aspect-ratio:auto;height:100%}
.segmented{display:inline-flex;padding:4px;border-radius:14px;background:var(--surface-3);gap:4px;flex-wrap:wrap}
.segmented button{border:0;background:none;border-radius:10px;padding:8px 14px;font-weight:700;font-size:14px;color:var(--ink-2);min-height:40px}
.segmented button.on{background:var(--surface);color:var(--brand);box-shadow:var(--shadow-1)}
/* Các lớp trong SVG sơ đồ */
.dgm text{font-family:Arial,Helvetica,sans-serif}
.dgm .lbl{font-size:13px;fill:var(--ink)} .dgm .lbl-s{font-size:11px;fill:var(--sub)} .dgm .ttl{font-size:15px;font-weight:700;fill:var(--ink)}
.dgm .part{fill:var(--surface);stroke:var(--ink-2);stroke-width:2}
.dgm .part2{fill:var(--surface-3);stroke:var(--ink-2);stroke-width:2}
.dgm .metal{fill:#c9d3d6;stroke:#55666c;stroke-width:2}
:root[data-theme="dark"] .dgm .metal{fill:#4b5a5f;stroke:#a9b8bd}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .dgm .metal{fill:#4b5a5f;stroke:#a9b8bd}}
.dgm .line{fill:none;stroke:var(--ink-2);stroke-width:2}
.dgm .lead{fill:none;stroke:var(--sub);stroke-width:1.2;stroke-dasharray:3 3}
.dgm .hot{fill:none;stroke:#e0603a;stroke-width:6;stroke-linecap:round;stroke-linejoin:round}
.dgm .cold{fill:none;stroke:#3a86d8;stroke-width:6;stroke-linecap:round;stroke-linejoin:round}
.dgm .fuelp{fill:none;stroke:#d79a12;stroke-width:5;stroke-linecap:round;stroke-linejoin:round}
.dgm .air{fill:none;stroke:#5bb3c9;stroke-width:6;stroke-linecap:round;stroke-linejoin:round}
.dgm .elec{fill:none;stroke:#c23d5a;stroke-width:3;stroke-linecap:round;stroke-linejoin:round}
.dgm .sig{fill:none;stroke:#7b5cd6;stroke-width:2.4;stroke-dasharray:6 4;stroke-linecap:round}
.dgm .hv{fill:none;stroke:#f07c18;stroke-width:6;stroke-linecap:round;stroke-linejoin:round}
.dgm .oil{fill:none;stroke:#8a5a1c;stroke-width:5;stroke-linecap:round}
.dgm .fill-hot{fill:#f7c4b1} .dgm .fill-cold{fill:#bcd8f3} .dgm .fill-fuel{fill:#f5dc95} .dgm .fill-hv{fill:#ffd2ad} .dgm .fill-brand{fill:var(--brand-soft)}
.dgm .flow{transition:opacity .25s}
.dgm.show-flow .flow{opacity:1}
.dgm.show-flow .flow path,.dgm.show-flow .flow line,.dgm.show-flow .flow polyline{stroke-dasharray:14 10;animation:dash 1.2s linear infinite}
@keyframes dash{to{stroke-dashoffset:-24}}
.dgm .labels{transition:opacity .2s}
.dgm.hide-labels .labels{opacity:0}
.dgm .cp circle.ring{fill:none;stroke:var(--stop);stroke-width:2.5;opacity:.55}
.dgm .cp circle.dot{fill:var(--stop)}
.dgm .cp text{font-size:13px;font-weight:700;fill:#fff;text-anchor:middle;dominant-baseline:central}
.dgm.show-checks .cp circle.ring{animation:ring 1.6s ease-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes ring{0%{transform:scale(.8);opacity:.8}100%{transform:scale(1.8);opacity:0}}
.dgm .cp{opacity:0;transition:opacity .2s}
.dgm.show-checks .cp{opacity:1}
.dgm .mode{display:none} .dgm .mode.on{display:inline}
.badge-np{display:inline-flex;gap:6px;align-items:center;font-size:12.5px;color:var(--sub);border:1px solid var(--line);border-radius:999px;padding:4px 10px;background:var(--surface)}

/* ---------- Garage ---------- */
.vcard{display:flex;gap:12px;align-items:center;padding:14px;border-radius:18px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow-1)}
.vcard.on{border-color:var(--brand);box-shadow:0 0 0 2px color-mix(in srgb,var(--brand) 30%,transparent)}
.vcard .vi{width:52px;height:52px;border-radius:15px;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;flex:none}
.vcard .vi svg{width:32px;height:32px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tabs{display:flex;gap:6px;overflow-x:auto;padding-bottom:6px;margin:8px 0 12px;scrollbar-width:thin}
.tabs a{flex:none;text-decoration:none;padding:9px 14px;border-radius:999px;border:1px solid var(--line-2);color:var(--ink-2);font-size:14px;font-weight:700;background:var(--surface);min-height:40px;display:flex;align-items:center}
.tabs a.on{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.log{display:flex;gap:12px;align-items:flex-start;padding:12px 13px;border-radius:14px;border:1px solid var(--line);background:var(--surface);margin:8px 0}
.log .when{font-size:12.5px;color:var(--sub)}
.log .acts{display:flex;gap:6px;margin-left:auto;flex:none}
.log img.thumb{width:64px;height:64px;object-fit:cover;border-radius:10px;border:1px solid var(--line)}
.meter{display:flex;gap:3px;align-items:flex-end;height:30px}
.meter i{width:4px;background:var(--brand);border-radius:2px}
.rec-dot{width:14px;height:14px;border-radius:50%;background:var(--stop);animation:pulse 1s infinite}
.sparkline{width:100%;height:120px}

/* ---------- Sheet / modal ---------- */
.sheet{position:fixed;inset:0;z-index:90;display:flex;align-items:flex-end;justify-content:center}
.sheet[hidden]{display:none}
.sheet-backdrop{position:absolute;inset:0;background:rgba(10,20,24,.5);animation:fade .2s}
.sheet-panel{position:relative;width:min(720px,100%);max-height:92vh;max-height:92dvh;overflow:auto;background:var(--surface);border-radius:22px 22px 0 0;box-shadow:var(--shadow-2);padding-bottom:var(--sab);animation:up .22s ease-out}
@media(min-width:760px){.sheet{align-items:center;padding:20px}.sheet-panel{border-radius:22px}}
.sheet-head{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;background:var(--surface);border-bottom:1px solid var(--line)}
.sheet-head h2{margin:0;font-size:21px}
.sheet-body{padding:16px}
@keyframes up{from{transform:translateY(30px);opacity:0}}
@keyframes fade{from{opacity:0}}
.toasts{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(var(--bottom-h) + 16px + var(--sab));z-index:120;display:grid;gap:8px;width:min(92vw,420px);pointer-events:none}
@media(min-width:1024px){.toasts{bottom:24px}}
.toast{background:var(--ink);color:var(--bg);padding:12px 16px;border-radius:14px;box-shadow:var(--shadow-2);font-size:14.5px;text-align:center;animation:up .2s}

/* ---------- Kết quả tìm kiếm ---------- */
.understood{border-radius:18px;border:1px solid var(--line);background:linear-gradient(140deg,var(--sky),var(--mint));padding:15px}
.understood .chips2{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.understood .chips2 span{font-size:13px;padding:4px 10px;border-radius:999px;background:var(--surface);border:1px solid var(--line)}
.explain{border-left:4px solid var(--brand);padding:2px 0 2px 12px;margin:10px 0;color:var(--ink-2)}

/* ---------- Pháp lý / chân trang ---------- */
.footer{margin-top:36px;padding:18px 4px 6px;border-top:1px solid var(--line);font-size:13px;color:var(--sub);text-align:center}
.footer a{color:var(--sub)}
.footer p{margin:3px 0}
.prose{max-width:780px}
.prose h2{margin-top:26px} .prose h3{margin-top:18px}
.prose li{margin:4px 0}

/* ---------- Báo cáo in ---------- */
.report{background:#fff;color:#111;font-family:Arial,Helvetica,sans-serif;padding:20px;border-radius:12px;border:1px solid #ddd}
.report h1{font-family:"Times New Roman",Times,serif;font-size:26px;color:#111}
.report h2{font-size:18px;border-bottom:2px solid #1f5f6b;padding-bottom:4px;margin-top:20px;color:#111}
.report table{width:100%;border-collapse:collapse;font-size:13px}
.report td,.report th{border:1px solid #ccc;padding:6px 8px;text-align:left;vertical-align:top}
.report .foot{font-size:11px;color:#555;margin-top:18px;border-top:1px solid #ccc;padding-top:6px}
@media print{
  body{background:#fff}
  .topbar,.sidebar,.bottomnav,.noprint,.footer,.toasts,.sheet{display:none!important}
  .app{display:block}
  .main{padding:0;max-width:none}
  .report{border:0;padding:0}
  .card{box-shadow:none}
  a{color:#111;text-decoration:none}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .dgm.show-flow .flow path{animation:none}
}

/* ---------- Điều chỉnh theo kích thước màn hình (đặt cuối để ưu tiên) ---------- */
@media(max-width:899px){
  .examples{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;-webkit-overflow-scrolling:touch;margin-right:-18px}
  .examples::-webkit-scrollbar{display:none}
  .examples button{flex:none}
  .statline{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .statline span{flex:none}
}
.dgm .flow{opacity:.3}
.viewer .vtools button{width:38px;height:38px;opacity:.92}

.viewer{display:flex;flex-direction:column}
.viewer .vtools{position:static;flex-direction:row;align-items:center;justify-content:flex-end;padding:6px 8px;border-bottom:1px solid var(--line);background:var(--surface)}
.viewer .vtools .vnote{position:static;margin-right:auto;background:none;padding:0 4px;font-size:12px;color:var(--sub)}
.viewer.full .stage{flex:1;min-height:0}
@media(max-width:520px){.viewer .vtools .vnote{display:none}}