/* ---- p_18_sv-kick-off.css ---- */
/* =====================================================================
   KICK-OFF (.sk-ko) - mission control: đếm ngược T-10 -> LIFT OFF, tên lửa bay lên để lại vệt khói.
   Hình khối: khung ngắm (góc vuông, ngoặc cam ở hai góc), lưới tọa độ, thước độ cao, số liệu viễn trắc nhỏ.
   Hệ màu: cam #ff6a13 / đen / trắng (+ xám). Một font Be Vietnam Pro; Anton chỉ cho chữ KICK-OFF, số đếm ngược, số phần.
   Mobile trước; mở rộng ở 700px (hero 2 cột) và 1025px (desktop).
   ===================================================================== */
.sk-ko{--r:2px;--bw:1px;--hfw:800;--hls:-.03em;--bg:#0a0a0c;--bg2:#101013;--card:#121216;--ln:rgba(255,255,255,.14);--mut:#aeaeb8;--aci:#0a0a0c;color-scheme:dark}
.sk-ko h3{margin:0}
.ko-spr{position:absolute;width:0;height:0;overflow:hidden}
.ko-v-o{fill:var(--ac)}.ko-v-w{fill:#fff}.ko-v-k{fill:#0a0a0c}.ko-v-g{fill:#4a4a54}.ko-v-so{stroke:var(--ac)}.ko-v-sw{stroke:#fff}

/* ---------- nhịp chung của các section ---------- */
.sk-ko .s-sec{padding:clamp(34px,7vw,100px) 0}
.sk-ko section[id]{scroll-margin-top:-40px}
.sk-ko .s-sec.tight{padding:clamp(28px,5vw,64px) 0}
.sk-ko .s-head{margin-bottom:clamp(18px,3.2vw,40px);max-width:780px}
.sk-ko .s-h{font-size:clamp(27px,6.4vw,56px);line-height:1.14;letter-spacing:-.03em;text-wrap:balance}
.sk-ko .s-lead{font-size:clamp(15px,1.25vw,17px);line-height:1.6;margin-top:12px}
.sk-ko .btn{border-radius:var(--r);letter-spacing:.1em}
.sk-ko .s-card{border-radius:var(--r);background:var(--card);padding:clamp(16px,2.2vw,26px);overflow:visible}
/* khung ngắm: hai ngoặc cam ở góc trên trái và dưới phải */
.sk-ko .s-card::before,.sk-ko .s-card::after{content:"";position:absolute;width:14px;height:14px;border:2px solid var(--ac);pointer-events:none;transition:width .35s cubic-bezier(.16,1,.3,1),height .35s cubic-bezier(.16,1,.3,1)}
.sk-ko .s-card::before{left:-1px;top:-1px;border-right:0;border-bottom:0}
.sk-ko .s-card::after{right:-1px;bottom:-1px;border-left:0;border-top:0}
.sk-ko .s-seg{border-radius:var(--r);padding:3px;gap:3px;background:rgba(255,255,255,.05)}
.sk-ko .s-seg button{border-radius:var(--r);font-size:14px}
.sk-ko .s-seg button.on{background:var(--ac);color:#0a0a0c}
.sk-ko .s-note{border-radius:var(--r)}
.sk-ko .s-kpis>div{border-radius:var(--r)}
.sk-ko .s-ring b{font-family:var(--ff)}
.ko-nw{white-space:nowrap}

/* nhãn đầu mục: số thứ tự trong khung + thước kẻ vạch */
.ko-k{display:flex;align-items:center;gap:12px;margin:0 0 14px;font:700 12px/1 var(--fb);letter-spacing:.16em;text-transform:uppercase;color:var(--mut)}
.ko-k b{display:grid;place-items:center;min-width:34px;height:26px;padding:0 7px;border:1px solid var(--ac);color:var(--ac);font-weight:800;letter-spacing:.06em}
.ko-k i{flex:1;min-width:24px;height:9px;background:repeating-linear-gradient(90deg,var(--ln) 0 1px,transparent 1px 9px) 0 100%/100% 6px no-repeat,linear-gradient(var(--ln),var(--ln)) 0 100%/100% 1px no-repeat}
.s-lt .ko-k{color:#5d5d65}
.s-lt .ko-k b{color:#b8450a;border-color:#b8450a}

.ko-dot{display:inline-block;flex:none;width:8px;height:8px;border-radius:50%;background:var(--ac)}

/* =====================  HERO  ===================== */
.ko-hero{background:#0a0a0c;padding-top:clamp(100px,9vw,132px);padding-bottom:clamp(36px,5vw,84px)}
.ko-hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px) 0 0/48px 48px,linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px) 0 0/48px 48px;background-position:0 calc(var(--hp,0)*80px);-webkit-mask-image:radial-gradient(110% 80% at 72% 38%,#000 15%,transparent 72%);mask-image:radial-gradient(110% 80% at 72% 38%,#000 15%,transparent 72%)}
.ko-hero::after{content:"";position:absolute;z-index:-1;left:0;right:0;bottom:0;height:46%;background:radial-gradient(60% 90% at 72% 100%,rgba(255,106,19,.22),transparent 70%)}
.ko-hg{display:flex;flex-direction:column;min-width:0}
.ko-hc{display:contents}
.ko-hg>*,.ko-hc>*{min-width:0}
.ko-chip{order:1;display:flex;align-items:center;flex-wrap:wrap;gap:4px 10px;margin:0 0 10px;font:700 12px/1.3 var(--fb);letter-spacing:.14em;text-transform:uppercase;color:var(--mut)}
.ko-chip em{font-style:normal;color:var(--ac)}
.sk-ko .ko-title{order:2;margin:0;font-family:var(--fd);font-weight:400;text-transform:uppercase;letter-spacing:.006em;line-height:.98;font-size:clamp(60px,27vw,128px);white-space:nowrap;color:#fff}
.ko-title .s-ml{display:inline-block;vertical-align:top}
.ko-title em{font-style:normal;color:transparent;-webkit-text-stroke:clamp(1.5px,.5vw,3px) var(--ac)}
.ko-sub{order:4;max-width:46ch;margin-top:16px}
.ko-btns{order:5;margin-top:18px}
.ko-btns{gap:10px}
.ko-btns .btn{flex:1 1 auto;padding-inline:16px;letter-spacing:.08em;white-space:nowrap}
.ko-facts{order:6;display:none;margin:0;padding:0;list-style:none}

/* ---------- màn hình mission control ---------- */
.ko-st{order:3;position:relative;container-type:inline-size;width:100%;aspect-ratio:320/300;margin-top:clamp(14px,3vw,22px);border:1px solid rgba(255,255,255,.24);background:#0b0b0e;overflow:hidden;isolation:isolate;-webkit-tap-highlight-color:transparent}
.ko-st::before,.ko-st::after{content:"";position:absolute;z-index:6;width:16px;height:16px;border:2px solid var(--ac);pointer-events:none}
.ko-st::before{left:0;top:0;border-right:0;border-bottom:0}
.ko-st::after{right:0;bottom:0;border-left:0;border-top:0}
.ko-grid{position:absolute;inset:0;z-index:0;background:
  radial-gradient(70% 36% at 72% 100%,rgba(255,106,19,.2),transparent 72%),
  linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px) 0 0/25cqw 25cqw,
  linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px) 0 0/25cqw 25cqw,
  linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px) 0 0/5cqw 5cqw,
  linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px) 0 0/5cqw 5cqw}
.ko-grid::after{content:"";position:absolute;left:0;right:0;top:0;height:16cqw;background:linear-gradient(transparent,rgba(255,106,19,.08),transparent);opacity:0}
.ko-svg{position:absolute;inset:0;z-index:1;width:100%;height:100%;display:block}
.ko-tw{fill:#fff;opacity:.7}
.ko-oc{fill:var(--ac)}
.ko-heat{opacity:0;transition:opacity .5s}
.ko-twr path{fill:none;stroke:rgba(255,255,255,.4);stroke-width:1.2;stroke-linejoin:round}
.ko-arms{transition:transform .5s cubic-bezier(.4,0,.2,1);transform-box:fill-box;transform-origin:0 50%}
.ko-trail{opacity:.9;transition:opacity 1.6s ease}
.ko-pf{fill:url(#ko-gsm);opacity:0;transform-box:fill-box;transform-origin:center}
.ko-pad{fill:rgba(255,255,255,.14);stroke:rgba(255,255,255,.5);stroke-width:1}
.ko-gnd{fill:none;stroke:rgba(255,255,255,.7);stroke-width:1.4}
.ko-tks{fill:none;stroke:rgba(255,255,255,.3);stroke-width:2;stroke-dasharray:1.5 9}
.ko-fl{transform-box:fill-box;transform-origin:50% 0;transform:scaleY(.14);opacity:.55}
.ko-orb{opacity:0;fill:#fff;transition:opacity 1s}
.ko-orb circle:first-child{fill:var(--ac)}

.ko-hud{position:absolute;z-index:4;left:3.4cqw;right:3.4cqw;top:3cqw;display:grid;gap:.6cqw;font:600 clamp(12px,3.1cqw,15px)/1.3 var(--fb);letter-spacing:.07em;text-transform:uppercase;color:rgba(255,255,255,.78);pointer-events:none}
.ko-hud p{margin:0;display:flex;align-items:center;flex-wrap:wrap;gap:0 2.4cqw}
.ko-h1 .ko-dot{margin-right:-.4cqw}
.ko-h1 em{font-style:normal;color:var(--ac)}
.ko-h2{font-variant-numeric:tabular-nums}
.ko-h2 .ko-alt,.ko-h2 .ko-vel{text-transform:none}
.ko-h2 .ko-t{color:#fff;font-weight:800}
.ko-cd{position:absolute;z-index:3;left:3.4cqw;top:14.5cqw;pointer-events:none}
.ko-count{display:flex;align-items:flex-end;gap:1.6cqw;line-height:1}
.ko-pre{font:400 13cqw/1 var(--fd);color:#fff;opacity:.92;padding-bottom:3.6cqw}
.ko-num{display:block;min-width:30cqw;font:400 44cqw/.86 var(--fd);color:var(--ac);letter-spacing:.005em;font-variant-numeric:tabular-nums;text-shadow:0 0 5cqw rgba(255,106,19,.4)}
.ko-lift{display:none;font:400 23cqw/.92 var(--fd);text-transform:uppercase;color:#fff;text-shadow:0 0 4cqw rgba(255,106,19,.28)}
.ko-lift b{display:block;font-weight:400}
.ko-lift b+b{color:var(--ac)}
.ko-st.is-lift .ko-count{display:none}
.ko-st.is-lift .ko-lift{display:block}
.ko-st.is-zero .ko-num{color:#fff;text-shadow:0 0 7cqw rgba(255,255,255,.7)}
.ko-cue{position:absolute;z-index:4;left:3.4cqw;bottom:calc(3cqw + 54px);max-width:min(54cqw,300px);margin:0;display:grid;gap:2px;font-size:clamp(13px,3.9cqw,17px);line-height:1.38;color:#fff;pointer-events:none}
.ko-cue b{font:700 12px/1.2 var(--fb);letter-spacing:.14em;text-transform:uppercase;color:var(--ac)}
.ko-rp{position:absolute;z-index:5;left:3.4cqw;bottom:3cqw;min-height:44px;min-width:116px;padding:0 16px;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--ac);border-radius:var(--r);background:rgba(255,106,19,.12);color:var(--ac);font:700 13px/1 var(--fb);letter-spacing:.12em;cursor:pointer;transition:background .25s,color .25s}
.ko-rp span{font-size:19px;line-height:1}
.ko-rp:focus-visible{outline:2px solid #fff;outline-offset:3px}
.ko-ruler{position:absolute;z-index:2;right:0;top:11%;bottom:12.7%;width:38px;pointer-events:none;font:600 12px/1 var(--fb);color:rgba(255,255,255,.55);letter-spacing:.04em}
.ko-ruler::before{content:"";position:absolute;right:0;top:0;bottom:0;width:9px;background:repeating-linear-gradient(180deg,rgba(255,255,255,.55) 0 1px,transparent 1px calc(100%/12))}
.ko-ruler span{position:absolute;right:14px;transform:translateY(-50%)}
.ko-ruler span:nth-child(1){top:0}.ko-ruler span:nth-child(2){top:33.33%}.ko-ruler span:nth-child(3){top:66.66%}.ko-ruler span:nth-child(4){top:100%}
.ko-mk{position:absolute;right:0;top:calc(var(--ky,100)*1%);width:12px;height:12px;margin-top:-6px;background:var(--ac);clip-path:polygon(100% 0,0 50%,100% 100%);filter:drop-shadow(0 0 5px var(--ac))}
.ko-rt{position:absolute;inset:0;z-index:5;pointer-events:none;opacity:0;transition:opacity .25s;background:linear-gradient(rgba(255,106,19,.6),rgba(255,106,19,.6)) 0 var(--ry,50%)/100% 1px no-repeat,linear-gradient(rgba(255,106,19,.6),rgba(255,106,19,.6)) var(--rx,50%) 0/1px 100% no-repeat}
.ko-rt b{position:absolute;left:var(--rx,50%);top:var(--ry,50%);transform:translate(10px,8px);font:700 12px/1 var(--fb);letter-spacing:.08em;color:var(--ac);white-space:nowrap;text-shadow:0 0 6px #000}
.ko-sr{position:absolute;width:1px;height:1px;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* trạng thái đếm ngược / bay */
.ko-st.is-heat .ko-heat{opacity:.85}
.ko-st.is-arm-off .ko-arms{transform:scaleX(0)}
.ko-st.is-fire .ko-fl{transform:scaleY(1);opacity:1}
.ko-st.is-fire .ko-heat{opacity:1}
.ko-st.is-done .ko-trail{opacity:.32}
.ko-st.is-done .ko-orb{opacity:1}
.ko-st.is-rm .ko-orb{opacity:0}
.ko-st.is-rm .ko-fl{transform:scaleY(1);opacity:1}

/* =====================  01 · OKR  ===================== */
.ko-okr{align-items:start}
.ko-base{margin:0}
.ko-ring small{display:none}
.sk-ko .ko-ring b{font-size:21px}
.ko-sum{display:grid;grid-template-columns:84px minmax(0,1fr);gap:16px;align-items:center}
.ko-ring{width:84px}
.ko-vd small{display:block;font:600 12px/1.3 var(--fb);letter-spacing:.1em;text-transform:uppercase;color:var(--mut)}
.ko-vd b{display:block;margin:3px 0 4px;font:800 clamp(20px,2.4vw,26px)/1.15 var(--ff);letter-spacing:-.02em}
.ko-vd span{display:block;font-size:14px;line-height:1.5;color:var(--mut)}
.ko-tree{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.ko-tree ul{margin:0;padding:0;list-style:none}
.ko-o{display:flex;align-items:center;gap:12px;padding:10px 14px 10px 10px;border:1px solid var(--ac);border-radius:var(--r);background:rgba(255,106,19,.1)}
.ko-o i{display:grid;place-items:center;flex:none;width:32px;height:32px;background:var(--ac);color:#0a0a0c;font:800 16px/1 var(--ff);font-style:normal;letter-spacing:.02em}
.ko-o b{font:700 15px/1.35 var(--ff)}
.ko-lvs{position:relative;display:grid;gap:6px;margin:0 0 0 16px;padding:10px 0 0 20px;border-left:2px solid var(--ln)}
.ko-lvs::after{content:"";position:absolute;left:-2px;top:0;width:2px;height:34px;background:linear-gradient(var(--ac),transparent);opacity:0}
.ko-lf{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 12px;padding:9px 13px;border:1px solid var(--ln);border-radius:var(--r);background:rgba(255,255,255,.025);transition:border-color .3s,background .3s}
.ko-lf::before{content:"";position:absolute;left:-22px;top:50%;width:20px;height:2px;background:var(--ln)}
.ko-dp{font:700 15px/1.3 var(--ff)}
.ko-kr{font:800 15px/1.3 var(--ff);color:var(--ac);text-align:right;font-variant-numeric:tabular-nums}
.ko-do{grid-column:1/-1;font-size:14px;line-height:1.45;color:#dcdce2}
.ko-pc{grid-column:1/-1;font-size:12.5px;line-height:1.4;color:var(--mut)}
.ko-act{display:grid;gap:10px;justify-items:start;margin-top:2px}
.ko-act .btn{min-width:200px}
.ko-act .s-hint{margin:0}

/* =====================  02 · FORMAT  ===================== */
.ko-opt{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.ko-opt button{min-height:48px;padding:8px 12px;border:1px solid var(--ln);border-radius:var(--r);background:transparent;color:var(--ink);font:600 14px/1.25 var(--fb);text-align:left;cursor:pointer;transition:background .25s,color .25s,border-color .25s}
.ko-opt button.on{background:var(--ac);border-color:var(--ac);color:#0a0a0c}
.ko-opt button:active{transform:scale(.98)}
.ko-fh small{display:block;font:600 12px/1.3 var(--fb);letter-spacing:.1em;text-transform:uppercase;color:var(--mut)}
.ko-ft{display:block;margin-top:4px;font:800 clamp(17px,2vw,23px)/1.25 var(--ff);letter-spacing:-.02em}
.ko-fo{align-content:start}
.ko-leg{grid-template-columns:1fr 1fr;gap:10px 14px;margin-top:0}
.ko-leg li{grid-template-columns:12px minmax(0,1fr);gap:0 10px;align-items:start}
.ko-leg li::before{margin-top:4px;border-radius:2px}
.ko-leg li>b{grid-column:2;font-size:15px}
.ko-rw{display:grid;gap:6px}
.ko-rh{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin:0;font:700 12px/1.3 var(--fb);letter-spacing:.1em;text-transform:uppercase;color:var(--mut)}
.ko-rh em{font-style:normal;font-weight:500;letter-spacing:0;text-transform:none}
.ko-rail{display:flex;gap:8px;overflow-x:auto;margin:0 calc(clamp(16px,2.2vw,26px)*-1);padding:6px clamp(16px,2.2vw,26px) 12px;list-style:none;scroll-snap-type:x proximity;scroll-padding-inline:clamp(16px,2.2vw,26px);scrollbar-width:none;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}
.ko-rail::-webkit-scrollbar{display:none}
.ko-rail:focus-visible{outline:2px solid var(--ac);outline-offset:-2px}
.ko-bk{--bc:var(--c1);flex:0 0 150px;scroll-snap-align:start;position:relative;display:flex;flex-direction:column;gap:4px;min-height:108px;padding:10px 12px 9px;border:1px solid var(--ln);border-top:3px solid var(--bc);border-radius:var(--r);background:rgba(255,255,255,.03);transition:transform .4s cubic-bezier(.16,1,.3,1),border-color .3s}
.ko-bk[data-c="1"]{--bc:var(--c2)}.ko-bk[data-c="2"]{--bc:var(--c3)}.ko-bk[data-c="3"]{--bc:var(--c4)}
.ko-bk small{font:600 12px/1.2 var(--fb);letter-spacing:.06em;color:var(--mut);font-variant-numeric:tabular-nums}
.ko-bk b{font:600 14px/1.32 var(--fb);color:var(--ink)}
.ko-bk em{margin-top:auto;font:800 14px/1 var(--ff);font-style:normal;color:var(--ac);font-variant-numeric:tabular-nums}
.ko-day{flex:0 0 auto;display:grid;place-items:center;padding:0 10px;border:1px dashed var(--ac);border-radius:var(--r);color:var(--ac);font:800 12px/1.2 var(--fb);letter-spacing:.14em;text-transform:uppercase;writing-mode:vertical-rl;transform:rotate(180deg)}
.ko-kp{margin-top:2px;gap:8px}
.ko-kp>div{padding:10px 12px 11px}
.ko-kp b{margin-top:3px}
.ko-kp b{font-size:clamp(20px,5.4vw,25px)}
.ko-kp>div:last-child b{font-size:15px;line-height:1.3}
.ko-tip{margin:0}

/* =====================  03 · BỨC TƯỜNG CAM KẾT  ===================== */
.ko-wall-sec{background:#08080a}
.ko-wl{display:grid;gap:14px;min-width:0}
.ko-sky{position:relative;margin-inline:calc(var(--gut)*-1);border-block:1px solid var(--ln);background:radial-gradient(70% 90% at 50% 125%,rgba(255,106,19,.24),transparent 70%),radial-gradient(circle,rgba(255,255,255,.16) 1px,transparent 1.6px) 0 0/24px 24px,#0b0b0e}
.ko-con{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}
.ko-con path{fill:none;stroke:rgba(255,255,255,.3);stroke-width:1;vector-effect:non-scaling-stroke;stroke-linecap:round}
.ko-grd{position:relative;z-index:1;display:grid;grid-template-columns:repeat(8,minmax(0,1fr))}
.ko-sl{position:relative;aspect-ratio:1;min-width:0;min-height:44px;padding:0;border:0;background:none;color:var(--ac);cursor:pointer;-webkit-tap-highlight-color:transparent}
.ko-sl:disabled{cursor:default}
.ko-sl::before{content:"";position:absolute;left:calc(50% + var(--jx,0)*1%);top:calc(50% + var(--jy,0)*1%);width:3px;height:3px;margin:-1.5px 0 0 -1.5px;border-radius:50%;background:rgba(255,255,255,.22)}
.ko-sl svg{position:absolute;left:calc(50% + var(--jx,0)*1%);top:calc(50% + var(--jy,0)*1%);width:54%;height:54%;margin:-27% 0 0 -27%;fill:currentColor;opacity:0;transform:scale(0) rotate(-40deg);transition:transform .5s cubic-bezier(.34,1.56,.64,1),opacity .3s}
.ko-sl.is-fill svg{opacity:1;transform:none}
.ko-sl.is-fill::before{opacity:0}
.ko-sl.is-me{color:#fff}
.ko-sl.is-sel svg{transform:scale(1.4);filter:drop-shadow(0 0 7px var(--ac))}
.ko-sl:focus-visible{outline:2px solid #fff;outline-offset:-4px}
.ko-side{display:grid;gap:12px;align-content:start;min-width:0}
.ko-cap{min-height:56px;display:flex;align-items:center;font-size:15px;line-height:1.5;color:var(--mut)}
.ko-cap b{color:var(--ac);margin-right:8px;white-space:nowrap}
.ko-cap q{color:var(--ink);quotes:"“" "”";font-weight:600}
.ko-cap small{color:var(--mut);margin-left:6px}
.ko-cm{display:flex;flex-wrap:wrap;align-items:center;gap:6px 14px}
.ko-add{flex:1 1 172px;white-space:nowrap}
.ko-cnt{margin:0;font-size:14px;color:var(--mut);white-space:nowrap}
.ko-cnt b{color:var(--ink);font-size:18px;font-variant-numeric:tabular-nums}
.ko-rs{min-height:44px;padding:0 4px;border:0;background:none;color:var(--mut);font:600 14px var(--fb);text-decoration:underline;text-underline-offset:3px;cursor:pointer}
.ko-comp{display:grid;gap:14px;padding:16px;border:1px solid var(--ln);border-radius:var(--r);background:var(--card)}
.ko-comp[hidden]{display:none}
.ko-cr{display:flex;align-items:center;justify-content:space-between;gap:12px}
.ko-len{font-size:13px;color:var(--mut);font-variant-numeric:tabular-nums}
.ko-go{flex:1 1 auto;max-width:240px}

/* =====================  04 · NĂM PHẦN (ngòi nổ)  ===================== */
.ko-bg{display:none}
.ko-zw{position:relative;--fy:0px}
.ko-zl{position:relative;display:grid;margin:0;padding:0;list-style:none}
.ko-zl::before{content:"";position:absolute;left:21px;top:22px;bottom:22px;width:2px;background:repeating-linear-gradient(180deg,rgba(255,255,255,.3) 0 5px,transparent 5px 11px)}
.ko-zl::after{content:"";position:absolute;left:21px;top:22px;width:2px;height:max(0px,calc(var(--fy) - 22px));max-height:calc(100% - 44px);background:linear-gradient(180deg,var(--ac2),var(--ac));box-shadow:0 0 14px rgba(255,106,19,.7)}
.ko-zs{position:absolute;left:12px;top:var(--fy);width:20px;height:20px;margin-top:-10px;border-radius:50%;background:radial-gradient(circle,#fff 0 22%,var(--ac) 26% 52%,transparent 70%);opacity:0;pointer-events:none;transition:opacity .3s}
.ko-zw.is-burn .ko-zs{opacity:1}
.ko-zw.is-static .ko-zs{display:none}
.ko-zi{position:relative;display:grid;grid-template-columns:44px minmax(0,1fr);column-gap:14px;padding-bottom:16px}
.ko-zi:last-child{padding-bottom:0}
.ko-zn{position:relative;z-index:1;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:2px solid rgba(255,255,255,.3);background:var(--bg2);transition:background .4s,border-color .4s,box-shadow .5s}
.ko-zn b{padding-top:2px;font:400 19px/1 var(--fd);color:var(--mut);transition:color .4s}
.ko-zi.is-lit .ko-zn{background:var(--ac);border-color:var(--ac);box-shadow:0 0 0 6px rgba(255,106,19,.18),0 0 26px rgba(255,106,19,.55)}
.ko-zi.is-lit .ko-zn b{color:#0a0a0c}
.ko-zb{padding-top:4px;min-width:0}
.ko-zt{display:flex;flex-wrap:wrap;align-items:baseline;gap:2px 10px;margin:0 0 6px}
.ko-zt span{font:800 clamp(19px,2.2vw,24px)/1.2 var(--ff);letter-spacing:-.02em}
.ko-zt em{font:600 12px/1.2 var(--fb);font-style:normal;letter-spacing:.08em;text-transform:uppercase;color:var(--ac)}
.ko-zd{font-size:15px;line-height:1.55;color:#dcdce2}
.ko-zp{margin:6px 0 0;padding:2px 0 2px 12px;border-left:2px solid var(--ac);font-size:14px;line-height:1.5;color:var(--mut)}
.ko-zp b{margin-right:8px;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ac)}

/* =====================  05 · NĂM LỖI  ===================== */
.ko-errs .s-flip-f,.ko-errs .s-flip-b{min-height:232px}
.ko-errs .s-flip-f{background:linear-gradient(180deg,rgba(255,255,255,.035),transparent 55%),var(--card);overflow:hidden}
.ko-errs .s-flip-f::before{content:"×";position:absolute;right:8px;top:-14px;font:400 120px/1 var(--fd);color:transparent;-webkit-text-stroke:1.5px rgba(255,106,19,.55)}
.ko-errs .s-flip-f{position:relative}
.ko-errs .s-flip-h{color:var(--ac);opacity:1}
.ko-errs .s-flip-b .s-flip-h{color:#0a0a0c}
.ko-errs .s-flip-f h3{margin:0 0 8px;font-size:clamp(19px,2vw,22px)}
.ko-errs .s-flip-b p{font-size:15.5px;font-weight:500;color:#0a0a0c}

/* =====================  06 · AGENDA (giấy)  ===================== */
.ko-agx{padding:0 20px 44px;margin:0 -20px -44px}
.ko-ag{position:relative;background:#fff;border:1px solid var(--ln);box-shadow:0 22px 44px -26px rgba(10,10,12,.5)}
.ko-agt{display:flex;border-bottom:1px solid var(--ln)}
.ko-agt button{position:relative;flex:1;min-height:56px;padding:0 10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border:0;background:transparent;color:#5d5d65;font:800 15px/1.2 var(--ff);cursor:pointer;transition:background .25s,color .25s}
.ko-agt button em{font:600 12px/1.2 var(--fb);font-style:normal;letter-spacing:.06em}
.ko-agt button.on{background:#f5f4f1;color:#0a0a0c}
.ko-agt button.on::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:3px;background:var(--ac)}
.ko-agt button:focus-visible{outline:2px solid var(--ac);outline-offset:-3px}
.ko-agp[hidden]{display:none}
.ko-tb{width:100%;border-collapse:collapse;table-layout:fixed}
.ko-tb th{padding:11px 12px;background:#0a0a0c;color:#fff;font:700 12px/1.2 var(--fb);letter-spacing:.1em;text-transform:uppercase;text-align:left}
.ko-tb th:nth-child(1){width:64px}
.ko-tb th:nth-child(3){display:none}
.ko-tb th:nth-child(4),.ko-tb td:nth-child(4){display:none}
.ko-tb td{padding:10px 12px;border-bottom:1px solid var(--ln);vertical-align:top;font-size:14px;line-height:1.4;color:#0a0a0c}
.ko-tb td:nth-child(1){font:800 14.5px/1.35 var(--ff);font-variant-numeric:tabular-nums}
.ko-tb td:nth-child(2) b{display:block;font:700 14.5px/1.35 var(--ff)}
.ko-tb td:nth-child(2) small{display:block;margin-top:2px;font-size:13px;line-height:1.4;color:#5d5d65}
.ko-tb td:nth-child(3){display:none}
.ko-tb td:nth-child(4){font-size:13px;color:#3d3d44}
.ko-tb th:nth-child(4){width:116px}
.ko-tb tr[data-c] td:first-child{box-shadow:inset 4px 0 0 var(--cc,var(--c1))}
.ko-tb tr[data-c="1"]{--cc:var(--c2)}.ko-tb tr[data-c="2"]{--cc:var(--c3)}.ko-tb tr[data-c="3"]{--cc:var(--c4)}
.ko-tb tr[data-c="1"] td:first-child{box-shadow:inset 4px 0 0 #ffa266}
.ko-tb tbody tr:last-child td{border-bottom:0}
.ko-agk{display:flex;flex-wrap:wrap;gap:6px 16px;margin:0;padding:12px;border-top:1px solid var(--ln);font:600 12.5px/1.2 var(--fb);color:#3d3d44}
.ko-agk span{display:inline-flex;align-items:center;gap:7px}
.ko-agk span::before{content:"";width:12px;height:12px;border-radius:2px;background:var(--cc,var(--c1))}
.ko-agk span[data-c="1"]{--cc:#ffa266}.ko-agk span[data-c="2"]{--cc:var(--c3)}.ko-agk span[data-c="3"]{--cc:var(--c4)}
.ko-spec{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:18px 0 0;padding:0;list-style:none}
.ko-spec li{display:grid;gap:3px;padding:12px 11px;border:1px solid var(--ln);border-top:3px solid var(--ac);background:#fff;border-radius:var(--r)}
.ko-spec small{font:700 12px/1.2 var(--fb);letter-spacing:.08em;text-transform:uppercase;color:#5d5d65}
.ko-spec b{font:800 clamp(15px,4.2vw,20px)/1.15 var(--ff);letter-spacing:-.02em}
.ko-spec span{font-size:12.5px;line-height:1.35;color:#5d5d65}
.sk-ko .ko-fine{margin:12px 0 0;font-size:13px;line-height:1.5;color:#5d5d65}
.ko-dl{margin-top:20px}
.s-lt .btn-g{border-color:#0a0a0c;color:#0a0a0c}

/* =====================  07 · THẺ LIÊN QUAN (rail trên mobile)  ===================== */
.ko-cards{display:flex;gap:12px;overflow-x:auto;margin-inline:calc(var(--gut)*-1);padding:6px var(--gut) 14px;scroll-snap-type:x mandatory;scroll-padding-inline:var(--gut);scrollbar-width:none;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}
.ko-cards::-webkit-scrollbar{display:none}
.ko-cards:focus-visible{outline:2px solid var(--ac);outline-offset:-2px}
.ko-cards .card{flex:0 0 min(78%,320px);scroll-snap-align:start;border-radius:var(--r)}
.ko-cards .card em{font-size:12px}

/* khối "Khám phá thêm" do macro sinh ra: thành rail trên mobile để trang không dài */
.sk-ko .s-relw{padding-block:clamp(28px,5vw,60px)}
.sk-ko .s-rel{display:flex;gap:12px;overflow-x:auto;margin-inline:calc(var(--gut)*-1);padding:4px var(--gut) 12px;scroll-snap-type:x mandatory;scroll-padding-inline:var(--gut);scrollbar-width:none;overscroll-behavior-x:contain}
.sk-ko .s-rel::-webkit-scrollbar{display:none}
.sk-ko .s-rel a{flex:0 0 min(78%,300px);min-height:132px;scroll-snap-align:start;border-radius:var(--r);padding:18px}
.sk-ko .s-pager a{border-radius:var(--r)}

/* =====================  08 · FAQ  ===================== */
.sk-ko .fq-q{min-height:56px;padding:14px 0;font-size:clamp(16px,1.6vw,19px);line-height:1.35}
.sk-ko .fq-a p{font-size:15px;line-height:1.7}

/* =====================  CHUYỂN ĐỘNG TỰ CHẠY (tắt khi giảm chuyển động)  ===================== */
@media(prefers-reduced-motion:no-preference){
  .ko-dot{animation:koPing 1.9s ease-out infinite}
  .ko-grid::after{animation:koScan 7s linear infinite}
  .ko-tw{animation:koTw 3.4s ease-in-out infinite;animation-delay:calc(var(--k,0)*-.6s)}
  .ko-st.is-shake .ko-rks{animation:koSh .08s steps(2) infinite}
  .ko-st.is-fire .ko-fl{animation:koFl .09s ease-in-out infinite alternate}
  .ko-st.is-fire .ko-heat{animation:koHeat .12s ease-in-out infinite alternate}
  .ko-num.is-tick{animation:koTick .3s cubic-bezier(.2,.9,.3,1.3)}
  .ko-cue.is-swap{animation:koSwap .4s ease-out}
  .ko-lift{animation:koStamp .55s cubic-bezier(.2,.9,.3,1.2) both}
  .ko-st.is-done .ko-orb circle:last-child{animation:koOrb 1.6s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
  .ko-tree.is-drop .ko-o{animation:koPulse .6s ease-out}
  .ko-tree.is-drop .ko-lf{animation:koDrop .7s cubic-bezier(.2,.9,.25,1.1) both;animation-delay:calc(var(--i,0)*.16s + .14s)}
  .ko-tree.is-drop .ko-lvs::after{animation:koSpine .9s ease-out both}
  .ko-sl.is-fill svg{animation:koStarTw 3.6s ease-in-out infinite;animation-delay:calc(var(--k,0)*-.45s)}
  .ko-sl.is-new svg{animation:koNew 1.4s ease-out}
  .ko-zw.is-burn .ko-zs{animation:koSpark .16s ease-in-out infinite alternate}
  .ko-bn.is-swap{animation:koBig .55s cubic-bezier(.2,.9,.3,1.1)}
  .ko-bk{animation:koBlk .5s cubic-bezier(.16,1,.3,1) both;animation-delay:calc(var(--i,0)*.045s)}
}
@keyframes koPing{0%{box-shadow:0 0 0 0 rgba(255,106,19,.65)}100%{box-shadow:0 0 0 9px rgba(255,106,19,0)}}
@keyframes koScan{0%{transform:translateY(-100%)}100%{transform:translateY(520%)}}
@keyframes koTw{0%,100%{opacity:.18}50%{opacity:.95}}
@keyframes koSh{0%{transform:translate(.7px,0)}100%{transform:translate(-.7px,.5px)}}
@keyframes koFl{0%{transform:scaleY(.86)}100%{transform:scaleY(1.12)}}
@keyframes koHeat{0%{opacity:.75}100%{opacity:1}}
@keyframes koTick{0%{transform:scale(1.22);opacity:.2}100%{transform:none;opacity:1}}
@keyframes koSwap{0%{opacity:0;transform:translateY(6px)}100%{opacity:1;transform:none}}
@keyframes koStamp{0%{opacity:0;transform:scale(1.5) rotate(-4deg)}100%{opacity:1;transform:none}}
@keyframes koOrb{0%,100%{transform:scale(.8);opacity:.2}50%{transform:scale(1.5);opacity:.5}}
@keyframes koPulse{0%{box-shadow:0 0 0 0 rgba(255,106,19,.55)}100%{box-shadow:0 0 0 14px rgba(255,106,19,0)}}
@keyframes koDrop{0%{opacity:0;transform:translateY(-24px)}100%{opacity:1;transform:none}}
@keyframes koSpine{0%{top:0;opacity:1}100%{top:calc(100% - 34px);opacity:0}}
@keyframes koStarTw{0%,100%{opacity:.78}50%{opacity:1}}
@keyframes koNew{0%{filter:drop-shadow(0 0 0 rgba(255,106,19,0))}30%{filter:drop-shadow(0 0 12px #fff)}100%{filter:drop-shadow(0 0 0 rgba(255,106,19,0))}}
@keyframes koSpark{0%{transform:scale(.85)}100%{transform:scale(1.2)}}
@keyframes koBig{0%{opacity:0;transform:translateY(24px)}100%{opacity:1;transform:none}}
@keyframes koBlk{0%{opacity:0;transform:translateX(18px)}100%{opacity:1;transform:none}}

/* =====================  HOVER (chỉ chuột)  ===================== */
@media(hover:hover) and (pointer:fine){
  .ko-rp:hover{background:var(--ac);color:#0a0a0c}
  .sk-ko .btn-f:hover{box-shadow:0 10px 30px rgba(255,106,19,.35)}
  .s-lt .btn-g:hover{border-color:var(--ac);color:var(--ac)}
  .sk-ko .s-card:hover::before,.sk-ko .s-card:hover::after{width:28px;height:28px}
  .ko-opt button:hover:not(.on){border-color:var(--ac)}
  .ko-lf:hover{border-color:var(--ac);background:rgba(255,106,19,.07)}
  .ko-bk:hover{transform:translateY(-4px);border-color:var(--ac)}
  .ko-sl.is-fill:hover svg{transform:scale(1.35);filter:drop-shadow(0 0 7px var(--ac))}
  .ko-zi:hover .ko-zn{border-color:var(--ac)}
  .ko-tb tbody tr:hover td{background:#f5f4f1}
  .ko-spec li{transition:transform .45s cubic-bezier(.16,1,.3,1)}
  .ko-spec li:hover{transform:translateY(-5px)}
  .ko-st.is-aim .ko-rt{opacity:1}
  .ko-st{cursor:crosshair}
  .ko-st .ko-rp{cursor:pointer}
}

/* =====================  iPad / desktop  ===================== */
@media(min-width:700px){
  .ko-hg{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(24px,4vw,64px);align-items:center}
  .ko-hc{display:flex;flex-direction:column;align-items:flex-start}
  .ko-st{order:0;margin-top:0}
  .ko-chip{margin-bottom:14px}
  .sk-ko .ko-title{font-size:clamp(84px,16vw,164px);white-space:normal;line-height:.92}
  .ko-title .s-ml{display:block}
  .ko-sub{margin-top:clamp(12px,1.3vw,18px)}
  .ko-btns{margin-top:clamp(16px,1.6vw,24px)}
  .ko-btns{gap:14px}
  .ko-btns .btn{flex:0 0 auto;padding-inline:24px;letter-spacing:.1em}
  .ko-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;width:100%;margin-top:clamp(20px,2.2vw,32px);border-top:1px solid var(--ln)}
  .ko-facts li{padding:14px 12px 0 0;display:grid;gap:4px;align-content:start}
  .ko-facts li+li{padding-left:14px;border-left:1px solid var(--ln)}
  .ko-facts b{font:800 clamp(24px,2.8vw,38px)/1 var(--ff);letter-spacing:-.04em;font-variant-numeric:tabular-nums}
  .ko-facts span{font-size:13px;line-height:1.4;color:var(--mut)}
  .ko-sky{margin-inline:0;border:1px solid var(--ln)}
  .ko-wl{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(20px,3vw,40px);align-items:start}
  .ko-side{position:sticky;top:104px}
  .ko-cap{min-height:72px}
  .ko-opt{grid-template-columns:1fr 1fr}
  .ko-kp>div:last-child b{font-size:16px}
  .ko-spec{gap:12px}
  .ko-tb th:nth-child(4),.ko-tb td:nth-child(4){display:table-cell}
  .ko-spec li{padding:16px 16px 14px}
  .ko-cards .card{flex-basis:min(46%,340px)}
  .sk-ko .s-rel a{flex-basis:min(46%,300px)}
}
@media(min-width:861px){
  .ko-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;overflow:visible;margin:-8px 0 0;padding:8px 0 0}
  .ko-cards .card{flex:none}
  .sk-ko .s-rel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(14px,2vw,24px);overflow:visible;margin:0;padding:0}
  .sk-ko .s-rel a{flex:none;min-height:170px;padding:24px}
}
@media(min-width:900px){
  .ko-okr,.ko-fmt{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:start}
  .ko-okr>.s-out{position:sticky;top:96px}
  .ko-fmt>.s-ctl{position:sticky;top:104px}
}
@media(min-width:1025px){
  .ko-hg{align-items:center}
  .ko-title .s-ml{margin-block:-.1em -.1em}
  .ko-chip{margin-bottom:22px}
  .ko-kp{grid-template-columns:repeat(4,minmax(0,1fr))}
  .ko-rail{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));overflow:visible;margin:0;padding:6px 0 0;gap:10px}
  .ko-bk{flex:none;min-height:104px}
  .ko-day{grid-column:1/-1;writing-mode:horizontal-tb;transform:none;padding:6px 10px}
  .ko-rh em{display:none}
  .ko-leg{grid-template-columns:repeat(4,minmax(0,1fr))}
  .ko-fmt{align-items:start}
  .ko-fmt>.s-ctl{position:sticky;top:104px}
  .ko-wl{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:clamp(24px,3.6vw,56px);align-items:start}
  .ko-side{gap:16px;position:sticky;top:104px}
  .ko-cap{min-height:96px;font-size:18px;align-items:flex-start;padding-top:4px}
  .ko-cap q{font-size:22px;line-height:1.35;display:block;margin-top:6px}
  .ko-cap b{display:block}
  .ko-pw{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:clamp(40px,5vw,80px);align-items:start}
  .ko-bg{display:block;position:sticky;top:130px;padding-top:6px}
  .ko-bn{display:block;font:400 clamp(170px,17vw,260px)/.82 var(--fd);color:transparent;-webkit-text-stroke:2px var(--ac)}
  .ko-bt{display:block;margin-top:18px;font:800 28px/1.2 var(--ff);letter-spacing:-.02em}
  .ko-bl{display:block;width:72px;height:3px;margin-top:16px;background:var(--ac)}
  .ko-zi{column-gap:24px;padding-bottom:42px}
  .ko-zt span{font-size:27px}
  .ko-zd{font-size:17px;line-height:1.6}
  .ko-zp{font-size:15px;margin-top:10px}
  .ko-agt{display:none}
  .ko-ag{display:grid;grid-template-columns:1fr 1fr;grid-template-areas:"a b" "k k"}
  #ko-ap1{grid-area:a}
  #ko-ap2{grid-area:b;border-left:1px solid var(--ln)}
  .ko-agp[hidden]{display:block}
  .ko-agk{grid-area:k}
  .ko-tb th:nth-child(3){display:table-cell;width:92px}
  .ko-tb td:nth-child(3){display:table-cell;font-size:13px;color:#3d3d44}
  .ko-tb th:nth-child(4){width:116px}
  .ko-tb th:nth-child(1){width:62px}
  .ko-errs .s-flip-f,.ko-errs .s-flip-b{min-height:250px}
}
@media(min-width:1440px){
  .ko-hg{gap:72px}
}

/* =====================  GIẢM CHUYỂN ĐỘNG  ===================== */
@media(prefers-reduced-motion:reduce){
  .ko-arms,.ko-trail,.ko-orb,.ko-heat,.ko-zs,.ko-sl svg,.ko-zn,.ko-zn b,.ko-bk,.ko-lf,.ko-spec li{transition:none!important}
}