/* OlympiadZone homepage */
:root{
  --navy:#1E2A78; --navy-deep:#141B57; --ink:#2B3BB0; --sun:#FFC83D; --sun-deep:#E0A21A; --on-sun:#2A2100;
  --pink:#C2255C; --pink-soft:#FDE7EF; --lav:#F3F5FF; --text:#1B1F3B; --muted:#5C6185; --line:#DDE1F5;
  --good:#178A5C; --good-soft:#E3F6EE; --bad:#C2410C; --bad-soft:#FFF0E6;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:#fff;color:var(--text);font-family:"Poppins",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3{margin:0;line-height:1.12;font-weight:800;letter-spacing:-.02em}
p{margin:0}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
:focus-visible{outline:3px solid var(--sun);outline-offset:3px;border-radius:6px}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:999px;font:inherit;font-weight:700;font-size:16px;text-decoration:none;border:2px solid transparent;cursor:pointer;line-height:1.2;transition:transform .15s ease,filter .15s ease}
.btn:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn-lg{min-height:58px;padding:0 30px;font-size:18px}
.btn-sm{min-height:40px;padding:0 18px;font-size:15px}
.btn-sun{background:var(--sun);color:var(--on-sun);box-shadow:0 6px 0 var(--sun-deep)}
.btn-sun:hover{box-shadow:0 7px 0 var(--sun-deep)}
.btn-sun:active{transform:translateY(4px);box-shadow:0 2px 0 var(--sun-deep)}
.btn-line{border-color:rgba(255,255,255,.45);color:#fff}
.btn-line:hover{border-color:#fff}
.btn-ink{background:var(--navy);color:#fff}

/* header */
.hd{position:sticky;top:0;z-index:50;background:var(--navy);padding-top:env(safe-area-inset-top,0px);transition:box-shadow .2s ease}
.hd.scrolled{box-shadow:0 6px 24px rgba(10,14,50,.35)}
.hd-in{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
.hd-logo img{height:44px;width:auto}
.hd-nav{display:flex;align-items:center;gap:6px}
.hd-nav a{color:#DCE1FF;text-decoration:none;font-weight:500;font-size:15px;padding:8px 12px;border-radius:999px}
.hd-nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.hd-nav .hd-login{color:#fff;font-weight:700;margin-left:8px}
.hd-nav .btn{color:var(--on-sun);padding:0 20px;min-height:44px;margin-left:4px;box-shadow:0 4px 0 var(--sun-deep)}
.hd-nav .btn:hover{background:var(--sun);color:var(--on-sun)}
.hd-menu{display:none;width:46px;height:46px;border-radius:12px;border:1.5px solid rgba(255,255,255,.3);background:transparent;cursor:pointer;place-items:center}
.hd-menu svg{width:24px;height:24px;stroke:#fff;stroke-width:2;fill:none;stroke-linecap:round}

/* hero */
.hero{position:relative;background:var(--navy);color:#fff;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;
  background-image:radial-gradient(circle at center,transparent 8px,rgba(255,255,255,.075) 8.5px,rgba(255,255,255,.075) 10px,transparent 10.5px);
  background-size:36px 36px;background-position:18px 18px;
  -webkit-mask-image:linear-gradient(100deg,transparent 28%,#000 70%);mask-image:linear-gradient(100deg,transparent 28%,#000 70%)}
.hero::after{content:"";position:absolute;right:-180px;bottom:-260px;width:620px;height:620px;border-radius:50%;z-index:-3;background:radial-gradient(circle,#3446C9 0%,rgba(52,70,201,0) 68%)}
.dots{position:absolute;inset:0;z-index:-1;pointer-events:none}
.dots i{position:absolute;width:21px;height:21px;margin:-10.5px 0 0 -10.5px;border-radius:50%;background:var(--sun);transform:scale(0);animation:fill .45s cubic-bezier(.3,1.6,.5,1) forwards}
.dots i.p{background:var(--pink)}
@keyframes fill{to{transform:scale(1)}}
.hero-in{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;padding-top:72px;padding-bottom:96px}
.kicker{display:inline-flex;align-items:center;gap:10px;font-weight:600;color:var(--sun);font-size:16px;margin-bottom:18px}
.kicker::before{content:"";width:14px;height:14px;border-radius:50%;background:var(--sun);box-shadow:0 0 0 4px rgba(255,200,61,.25)}
.hero h1{font-size:clamp(42px,6.4vw,78px);line-height:1.02;letter-spacing:-.035em;max-width:11ch}
.lead{margin-top:24px;font-size:19px;color:#C9CFF5;max-width:46ch}
.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.fine{margin-top:18px;font-size:14px;color:#A9B1E8}

/* demo paper */
.paper{position:relative;background:#fff;color:var(--text);border-radius:26px;padding:26px 26px 22px;box-shadow:0 30px 60px -20px rgba(5,8,40,.6),0 0 0 1px rgba(255,255,255,.08);transform:rotate(1.2deg)}
.paper::before{content:"";position:absolute;left:24px;right:24px;top:-12px;height:24px;border-radius:12px 12px 0 0;background:rgba(255,255,255,.35);z-index:-1;transform:rotate(-2.4deg)}
.paper-top{display:flex;justify-content:space-between;align-items:center;gap:10px}
.paper-tag{font-size:13px;font-weight:700;color:var(--pink);background:var(--pink-soft);padding:4px 12px;border-radius:999px}
.paper-timer{display:inline-flex;align-items:center;gap:6px;font-weight:700;font-variant-numeric:tabular-nums;font-size:15px;color:var(--navy);background:var(--lav);padding:4px 12px;border-radius:999px}
.paper-timer svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round}
.paper-label{margin-top:18px;font-size:13px;font-weight:600;color:var(--muted)}
.paper-q{font-size:clamp(20px,2.3vw,24px);line-height:1.3;font-weight:700;letter-spacing:-.01em;margin-top:2px;min-height:2.6em}
.paper-opts{display:grid;gap:10px;margin-top:18px}
.opt{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:10px 14px;border:2px solid var(--line);border-radius:14px;background:#fff;font:inherit;font-size:17px;font-weight:500;color:var(--text);cursor:pointer;min-height:54px;transition:border-color .15s ease,background-color .15s ease}
.opt:hover:not([disabled]){border-color:var(--ink)}
.opt[disabled]{cursor:default}
.bub{flex:none;width:32px;height:32px;border-radius:50%;border:2px solid var(--pink);color:var(--pink);display:grid;place-items:center;font-weight:700;font-size:15px;transition:background-color .2s ease,color .2s ease,transform .2s ease}
.opt.right{border-color:var(--good);background:var(--good-soft)}
.opt.right .bub{background:var(--good);border-color:var(--good);color:#fff;transform:scale(1.08)}
.opt.wrong{border-color:var(--bad);background:var(--bad-soft)}
.opt.wrong .bub{background:var(--bad);border-color:var(--bad);color:#fff}
.paper-result{min-height:0;margin-top:0;font-size:15px;color:var(--muted)}
.paper-result:not(:empty){margin-top:16px}
.paper-result b{display:block;font-size:17px;color:var(--text);margin-bottom:2px}
.paper-result.ok b{color:var(--good)}
.paper-result.no b{color:var(--bad)}
.paper-foot{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:18px;padding-top:14px;border-top:1.5px dashed var(--line);min-height:56px}
.paper-count{font-size:14px;color:var(--muted);font-weight:500}
.paper-cta{font-size:14px;font-weight:700;color:var(--ink)}
.medal{position:absolute;left:50%;top:-62px;width:84px;margin-left:-42px;pointer-events:none;transform:translateY(-30px) scale(0) rotate(-20deg);transform-origin:50% 0;z-index:2}
.medal.on{animation:medal .75s cubic-bezier(.3,1.6,.5,1) forwards}
@keyframes medal{to{transform:translateY(0) scale(1) rotate(4deg)}}
.burst{position:absolute;left:50%;top:6px;pointer-events:none;z-index:1}
.burst i{position:absolute;width:10px;height:10px;border-radius:2px;opacity:0;animation:burst .9s ease-out forwards}
@keyframes burst{0%{opacity:1;transform:translate(0,0) rotate(0)}100%{opacity:0;transform:translate(var(--x),var(--y)) rotate(var(--r))}}

/* sections */
.sec{padding:96px 0}
.sec-tint{background:var(--lav)}
.h2{font-size:clamp(32px,4.2vw,50px);color:var(--navy);max-width:20ch}
.sub{margin-top:14px;color:var(--muted);font-size:18px;max-width:58ch}

/* subjects */
.subjects{list-style:none;padding:0;margin:44px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.subjects li{position:relative;overflow:hidden;background:var(--c);color:#fff;border-radius:22px;padding:24px 22px 22px;min-height:170px;display:flex;flex-direction:column;justify-content:flex-end;gap:6px}
.subjects li::after{content:"";position:absolute;top:20px;right:20px;width:76px;height:16px;background:radial-gradient(circle,#fff 7px,transparent 7.5px) 0 0/16px 16px no-repeat,radial-gradient(circle,transparent 5px,rgba(255,255,255,.85) 5.5px 7px,transparent 7.5px) 20px 0/16px 16px no-repeat,radial-gradient(circle,transparent 5px,rgba(255,255,255,.85) 5.5px 7px,transparent 7.5px) 40px 0/16px 16px no-repeat,radial-gradient(circle,transparent 5px,rgba(255,255,255,.85) 5.5px 7px,transparent 7.5px) 60px 0/16px 16px no-repeat}
.subjects b{font-size:24px;font-weight:800;letter-spacing:-.02em;line-height:1.15}
.subjects span{font-size:14px;line-height:1.45;opacity:.92}
.subjects li:first-child{grid-column:span 2;grid-row:span 2;min-height:356px;padding:32px}
.subjects li:first-child b{font-size:44px}
.subjects li.more{grid-column:span 3;background:#fff;color:var(--navy);border:2.5px dashed #C3CAF0;justify-content:center;align-items:flex-start;gap:14px}
.subjects li.more::after{display:none}
.subjects li.more b{font-size:26px}
.subjects li.more .btn{min-height:46px}
.subjects li:first-child span{font-size:17px;max-width:24ch}

/* steps */
.steps{list-style:none;padding:0;margin:48px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:28px;counter-reset:s;position:relative}
.steps::before{content:"";position:absolute;left:30px;right:30px;top:30px;border-top:2.5px dashed #C3CAF0;z-index:0}
.steps li{position:relative;counter-increment:s;z-index:1}
.steps li::before{content:counter(s);display:grid;place-items:center;width:62px;height:62px;border-radius:50%;border:3px solid var(--pink);background:#fff;color:var(--pink);font-weight:800;font-size:26px;margin-bottom:20px;box-shadow:0 0 0 8px var(--lav)}
.steps li:last-child::before{background:var(--pink);color:#fff}
.steps h3{font-size:22px;color:var(--navy);margin-bottom:8px}
.steps p{color:var(--muted);font-size:16px}

/* features */
.feat{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.feat-rev{grid-template-columns:.95fr 1.05fr}
.ticks{list-style:none;padding:0;margin:32px 0 0;display:grid;gap:18px}
.ticks li{position:relative;padding-left:44px;color:var(--muted);font-size:17px}
.ticks li::before{content:"";position:absolute;left:0;top:2px;width:28px;height:28px;border-radius:50%;background:var(--sun) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M6 12.5l4 4 8-9' fill='none' stroke='%231E2A78' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/18px no-repeat}
.ticks b{color:var(--text);font-weight:700}
.sheet-art{margin:0;background:#FFF0F5;border:2.5px solid #F4C6D6;border-radius:26px;padding:24px 22px;transform:rotate(-1.5deg);box-shadow:0 24px 50px -24px rgba(194,37,92,.45)}
.sa-head{display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--pink);font-size:20px;padding:0 6px 12px;border-bottom:2px solid #F4C6D6}
.sa-timer{font-size:15px;background:var(--navy);color:#fff;padding:3px 12px;border-radius:999px;font-variant-numeric:tabular-nums}
.sa-rows{display:grid;grid-template-columns:1fr 1fr;gap:4px 18px;margin-top:12px}
.sa-row{display:flex;align-items:center;gap:7px;padding:5px 6px}
.sa-row span{width:26px;font-weight:700;color:var(--pink);font-size:14px}
.sa-row i{width:24px;height:24px;border-radius:50%;border:1.5px solid var(--pink);display:grid;place-items:center;font-style:normal;font-size:10px;font-weight:700;color:var(--pink)}
.sa-row i.f{background:var(--ink);border-color:var(--ink);color:#fff}
.sa-row.mk span{background:var(--sun);color:var(--on-sun);border-radius:6px;text-align:center}

/* progress art */
.progress-art{margin:0;background:#fff;border-radius:26px;padding:28px;box-shadow:0 24px 50px -28px rgba(30,42,120,.45);border:1px solid var(--line)}
.progress-art figcaption{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:18px}
.pa-row{display:grid;grid-template-columns:100px 1fr 48px;gap:14px;align-items:center;margin-top:16px;font-weight:600;font-size:15px}
.pa-row i{display:block;height:14px;border-radius:99px;background:var(--lav);position:relative;overflow:hidden}
.pa-row i::after{content:"";position:absolute;inset:0 auto 0 0;width:var(--w);background:var(--c);border-radius:99px}
.pa-row span{color:var(--c)}
.pa-row b{text-align:right}
.pa-note{margin-top:22px;padding:12px 16px;border-radius:14px;background:#FFF6DB;color:#6B4E00;font-size:15px;font-weight:500}
.feat-copy .btn{margin-top:28px}

/* live */
.live{background:var(--sun);padding:64px 0;position:relative;overflow:hidden}
.live::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,transparent 8px,rgba(42,33,0,.09) 8.5px 10px,transparent 10.5px);background-size:36px 36px;-webkit-mask-image:linear-gradient(90deg,transparent 40%,#000);mask-image:linear-gradient(90deg,transparent 40%,#000)}
.live-in{position:relative;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.live .h2{color:var(--on-sun)}
.live p{margin-top:10px;color:#4A3B00;font-size:18px;max-width:52ch}

/* faq */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.faq{display:grid;gap:12px}
.faq details{border:2px solid var(--line);border-radius:18px;background:#fff;transition:border-color .15s ease}
.faq details[open]{border-color:var(--navy)}
.faq summary{list-style:none;cursor:pointer;padding:18px 56px 18px 22px;font-weight:700;font-size:17px;position:relative;color:var(--navy)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:20px;top:50%;width:24px;height:24px;margin-top:-12px;border-radius:50%;border:2px solid var(--pink);background:radial-gradient(circle,var(--pink) 0 0) center/0 0 no-repeat;transition:background-size .2s ease}
.faq details[open] summary::after{background-size:12px 12px;background-image:radial-gradient(circle,var(--pink) 5.5px,transparent 6px)}
.faq details p{padding:0 22px 20px;color:var(--muted)}

/* final */
.final{background:var(--navy);color:#fff;padding:88px 0;text-align:center;position:relative;overflow:hidden}
.final::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,transparent 8px,rgba(255,255,255,.07) 8.5px 10px,transparent 10.5px);background-size:36px 36px;-webkit-mask-image:radial-gradient(ellipse at center,transparent 30%,#000 75%);mask-image:radial-gradient(ellipse at center,transparent 30%,#000 75%)}
.final-in{position:relative;display:flex;flex-direction:column;align-items:center;gap:24px}
.final img{width:66px;height:auto}
.final h2{font-size:clamp(32px,4.6vw,54px);max-width:16ch}

/* footer */
.ft{background:var(--navy-deep);color:#C9CFF5;padding:56px 0 calc(28px + env(safe-area-inset-bottom,0px))}
.ft-in{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px}
.ft-brand img{height:40px;width:auto}
.ft-brand p{margin-top:12px;font-size:15px}
.ft-links,.ft-contact{display:grid;gap:8px;align-content:start;font-size:15px}
.ft a{text-decoration:none;color:#DCE1FF}
.ft a:hover{color:#fff;text-decoration:underline}
.ft-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:14px;color:#8E97D6}

/* whatsapp */
.wa{position:fixed;right:20px;bottom:calc(20px + env(safe-area-inset-bottom,0px));z-index:60;width:60px;height:60px;border-radius:50%;background:#1FAF5A;display:grid;place-items:center;box-shadow:0 10px 24px rgba(0,0,0,.25)}
.wa svg{width:32px;height:32px;fill:none;stroke:#fff;stroke-width:1.6}
.wa svg .fillw{fill:#fff;stroke:none}

/* responsive */
@media (max-width:1000px){
  .hero-in{grid-template-columns:1fr;gap:48px;padding-top:48px;padding-bottom:72px}
  .hero h1{max-width:14ch}
  .paper{max-width:560px;transform:none}
  .dots{display:none}
  .feat,.feat-rev{grid-template-columns:1fr;gap:44px}
  .feat-rev .progress-art{order:2}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .subjects{grid-template-columns:repeat(2,1fr)}
  .subjects li:first-child{grid-row:auto;min-height:220px}
  .subjects li.more{grid-column:auto}
  .steps{grid-template-columns:1fr 1fr;gap:36px 28px}
  .steps::before{display:none}
}
@media (max-width:860px){
  .hd-menu{display:grid}
  .hd-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--navy);flex-direction:column;align-items:stretch;padding:8px 16px 20px;gap:2px;box-shadow:0 18px 30px rgba(10,14,50,.35)}
  .hd-nav.open{display:flex}
  .hd-nav a{padding:12px 14px;font-size:17px}
  .hd-nav .hd-login{margin-left:0}
  .hd-nav .btn{margin:8px 0 0}
  .ft-in{grid-template-columns:1fr 1fr}
  .ft-brand{grid-column:1/-1}
}
@media (max-width:560px){
  body{font-size:16px}
  .hd-logo img{height:36px}
  .sec{padding:68px 0}
  .lead{font-size:17px}
  .btn-lg{width:100%}
  .paper{padding:20px 18px 18px;border-radius:22px}
  .medal{width:68px;margin-left:-34px;top:-52px}
  .subjects{grid-template-columns:1fr 1fr;gap:12px}
  .subjects li{min-height:150px;padding:18px 16px}
  .subjects li:first-child{grid-column:1/-1;min-height:180px;padding:22px}
  .subjects li:first-child b{font-size:34px}
  .subjects b{font-size:20px}
  .subjects span{font-size:13px}
  .steps{grid-template-columns:1fr}
  .sa-rows{grid-template-columns:1fr}
  .sa-row:nth-child(n+7){display:none}
  .pa-row{grid-template-columns:84px 1fr 44px}
  .live .btn{width:100%}
  .ft-in{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-delay:0s !important;transition:none !important}
}

/* ===== light theme for header, hero and final band ===== */
.hd{background:rgba(255,255,255,.92);-webkit-backdrop-filter:saturate(1.4) blur(10px);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.hd.scrolled{box-shadow:0 6px 24px rgba(30,42,120,.12)}
.hd-nav a{color:#3A3F63}
.hd-nav a:hover{color:var(--navy);background:var(--lav)}
.hd-nav .hd-login{color:var(--navy)}
.hd-menu{border-color:var(--line)}
.hd-menu svg{stroke:var(--navy)}

.hero{background:linear-gradient(180deg,#EEF1FF 0%,#F7F8FF 60%,#FFFFFF 100%);color:var(--text)}
.hero::before{background-image:radial-gradient(circle at center,transparent 8px,rgba(43,59,176,.13) 8.5px,rgba(43,59,176,.13) 10px,transparent 10.5px)}
.hero::after{right:-140px;top:-200px;bottom:auto;width:640px;height:640px;background:radial-gradient(circle,rgba(255,200,61,.38) 0%,rgba(255,200,61,0) 65%)}
.hero h1{color:var(--navy)}
.kicker{color:var(--pink)}
.kicker::before{background:var(--pink);box-shadow:0 0 0 4px rgba(194,37,92,.18)}
.lead{color:var(--muted)}
.fine{color:var(--muted)}
.btn-line{border-color:var(--navy);color:var(--navy)}
.btn-line:hover{border-color:var(--navy);background:var(--navy);color:#fff}
.paper{box-shadow:0 30px 60px -26px rgba(30,42,120,.45),0 0 0 1px var(--line)}
.paper::before{background:rgba(43,59,176,.10)}

.final{background:var(--lav);color:var(--navy)}
.final::before{background-image:radial-gradient(circle,transparent 8px,rgba(43,59,176,.12) 8.5px 10px,transparent 10.5px)}

@media (max-width:860px){
  .hd-nav{background:#fff;box-shadow:0 18px 30px rgba(30,42,120,.15);border-bottom:1px solid var(--line)}
}

/* plans */
.plans{display:grid;grid-template-columns:1fr 1.15fr;gap:22px;margin-top:40px;align-items:stretch}
.plan{position:relative;background:#fff;border:2px solid var(--line);border-radius:26px;padding:30px 28px;display:flex;flex-direction:column}
.plan h3{font-size:24px;color:var(--navy)}
.plan .price{margin-top:6px;font-size:34px;font-weight:800;color:var(--navy);letter-spacing:-.02em}
.plan .ticks{margin:20px 0 26px;gap:12px}
.plan .ticks li{font-size:16px;color:var(--text)}
.plan .btn{margin-top:auto;align-self:flex-start}
.plan-full{background:var(--navy);border-color:var(--navy);color:#fff;box-shadow:0 24px 50px -24px rgba(30,42,120,.6)}
.plan-full h3,.plan-full .price{color:#fff}
.plan-full .price{font-size:26px;color:var(--sun)}
.plan-full .ticks li{color:#DCE1FF}
.plan-tag{display:inline-block;align-self:flex-start;background:var(--sun);color:var(--on-sun);font-weight:700;font-size:13px;padding:4px 12px;border-radius:999px;margin-bottom:12px}
.plans:has(.plan[hidden]){grid-template-columns:minmax(0,640px)}
@media (max-width:860px){.plans{grid-template-columns:1fr}}
@media (max-width:560px){
  .subjects li:not(:first-child)::after{display:none}
  .subjects li.more{padding:16px;gap:10px}
  .subjects li.more b{font-size:18px;line-height:1.2}
  .subjects li.more .btn{min-height:40px;padding:0 16px;font-size:14px;box-shadow:0 4px 0 var(--sun-deep)}
}

/* demo: OMR answer sheet */
.paper-foot{align-items:flex-end;gap:14px}
.paper-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;text-align:right}
.omr{background:#FFF0F5;border:2px solid #F4C6D6;border-radius:14px;padding:8px 10px 6px}
.omr-head{font-weight:800;color:var(--pink);font-size:13px;padding:0 2px 5px;margin-bottom:4px;border-bottom:1.5px solid #F4C6D6}
.omr-row{display:flex;align-items:center;gap:6px;padding:3px 4px;border-radius:8px}
.omr-row.cur{background:#fff;box-shadow:inset 0 0 0 1.5px #F4C6D6}
.omr-n{width:14px;font-weight:700;color:var(--pink);font-size:13px}
.omr-b{width:25px;height:25px;border-radius:50%;border:1.5px solid var(--pink);background:transparent;color:var(--pink);font:inherit;font-size:10.5px;font-weight:700;padding:0;line-height:1;cursor:pointer;display:grid;place-items:center;transition:background-color .15s ease}
.omr-b:hover:not([disabled]){background:#FCD9E5}
.omr-b[disabled]{cursor:default}
.omr-b.f{background:var(--navy);border-color:var(--navy);color:#fff;animation:omrfill .3s cubic-bezier(.3,1.6,.5,1)}
@keyframes omrfill{from{transform:scale(.4)}to{transform:scale(1)}}
.omr-mark{width:14px;font-weight:800;font-size:14px;text-align:center}
.omr-mark.ok{color:var(--good)}
.omr-mark.no{color:var(--bad)}
@media (max-width:560px){.omr-b{width:23px;height:23px}.omr-row{gap:5px}}
[hidden]{display:none !important}
.paper-side .btn{white-space:nowrap}
@media (max-width:400px){.paper-side .btn{padding:0 14px}}