/* Design C — Midnight (Sam's choice): dark, glowing gradients, glass cards, element-style subject tiles. Jost + DM Sans. */
:root {
  color-scheme: dark;
  --bg: #0A0F1E; --text: #E8EBF4; --muted: #A4ADC4; --line: rgba(255,255,255,.12); --glass: rgba(255,255,255,.045);
  --cyan: #5EEAD4; --violet: #A78BFA; --amber: #FBBF24; --pink: #F472B6;
  --sf-bg: rgba(255,255,255,.05); --sf-line: rgba(255,255,255,.18); --sf-text: var(--text); --sf-muted: var(--muted); --sf-accent: var(--cyan); --sf-accent-ink: #06201C; --sf-radius: 14px; --sf-focus: #5EEAD4; --sf-chip: rgba(255,255,255,.1); --sf-photo: rgba(255,255,255,.04);
}
body { background: var(--bg); color: var(--text); font: 400 1.0625rem/1.65 'DM Sans', system-ui, sans-serif; position: relative; overflow-x: hidden; }
.glow { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.glow i { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .45; }
.g1 { width: 560px; height: 560px; background: #0E7490; top: -160px; left: -140px; animation: drift 22s ease-in-out infinite alternate; }
.g2 { width: 520px; height: 520px; background: #6D28D9; top: 10%; right: -180px; animation: drift 26s ease-in-out infinite alternate-reverse; }
.g3 { width: 420px; height: 420px; background: #9D174D; bottom: -200px; left: 30%; opacity: .25; animation: drift 30s ease-in-out infinite alternate; }
@keyframes drift { to { transform: translate(80px, 60px) scale(1.1); } }
.hdr, main, .ftr, .mbar { position: relative; z-index: 1; }
h1, h2, h3 { font-family: Jost, 'DM Sans', sans-serif; font-weight: 400; line-height: 1.05; letter-spacing: -.025em; margin: 0 0 .5em; }
h1 { font-weight: 300; font-size: clamp(2.6rem, 6.6vw, 5.6rem); letter-spacing: -.035em; }
h2 { font-weight: 300; font-size: clamp(2.1rem, 4.6vw, 3.6rem); }
h3 { font-weight: 500; font-size: 1.35rem; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
a { color: var(--cyan); }
.wrap { width: min(1180px, 100% - 40px); margin-inline: auto; }
.muted { color: var(--muted); }
.dim { color: var(--muted); }
.grad { background: linear-gradient(100deg, var(--cyan), var(--violet) 55%, var(--pink)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.kicker { display: inline-flex; align-items: center; gap: 10px; font-size: .78rem; font-weight: 500; letter-spacing: .2em; text-transform: uppercase; color: var(--cyan); margin: 0 0 18px; }
.live { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 0 rgba(94,234,212,.6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(94,234,212,0); } 100% { box-shadow: 0 0 0 0 rgba(94,234,212,0); } }
.glass { background: var(--glass); border: 1px solid var(--line); border-radius: 24px; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); }

.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 26px; border-radius: 999px; font-weight: 700; text-decoration: none; color: #0A0F1E; background: linear-gradient(100deg, var(--cyan), #A5B4FC); border: 1px solid transparent; transition: transform .15s, box-shadow .2s; box-shadow: 0 8px 30px rgba(94,234,212,.25); }
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(94,234,212,.4); }
.btn-sm { min-height: 42px; padding: 0 18px; font-size: .92rem; }
.btn-glass { background: rgba(255,255,255,.06); color: var(--text); border-color: var(--line); box-shadow: none; }
.btn-glass:hover { background: rgba(255,255,255,.12); box-shadow: none; }
.btn-full { width: 100%; }

.hdr { position: sticky; top: 0; z-index: 50; background: rgba(10,15,30,.6); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.hdr-in { display: flex; align-items: center; gap: 24px; min-height: 70px; }
.logo { display: inline-flex; align-items: center; gap: 12px; color: var(--text); text-decoration: none; font: 500 1.1rem Jost, sans-serif; }
.logo em { font-style: normal; color: var(--muted); font-weight: 300; }
.logo-el { position: relative; display: grid; place-items: center; width: 40px; height: 40px; border-radius: 8px; border: 1.5px solid var(--cyan); color: var(--cyan); font: 500 1.05rem Jost, sans-serif; }
.logo-el small { position: absolute; top: 1px; left: 4px; font-size: .55rem; opacity: .8; }
.menu { display: flex; gap: 28px; margin-left: auto; }
.menu a { color: var(--muted); text-decoration: none; font-size: .95rem; }
.menu a:hover { color: var(--text); }
.menu-toggle { display: none; }

.hero { padding: 96px 0 72px; text-align: center; }
.hero-in { display: flex; flex-direction: column; align-items: center; }
.hero h1 { max-width: 15ch; }
.lead { font-size: 1.22rem; color: var(--muted); max-width: 36em; }
.btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 16px 0 56px; }
.els { display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap; }
.els a { text-decoration: none; }
.el-plus { font: 300 2rem Jost, sans-serif; color: var(--muted); }
.el { position: relative; display: grid; align-content: center; justify-items: center; width: 132px; height: 148px; border-radius: 18px; background: var(--glass); border: 1px solid var(--line); color: var(--text); transition: transform .25s; }
.els a:hover .el { transform: translateY(-6px) rotate(-2deg); }
.el::before { content: ''; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: linear-gradient(140deg, var(--c1), transparent 60%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; }
.el-c { --c1: var(--cyan); } .el-m { --c1: var(--violet); } .el-d { --c1: var(--amber); } .el-p { --c1: var(--pink); }
.head-sub { max-width: 40em; margin: 4px auto 0; }
.el-n { position: absolute; top: 10px; left: 12px; font-size: .78rem; color: var(--muted); }
.el-s { font: 400 3rem/1 Jost, sans-serif; color: var(--c1); }
.el-name { font-weight: 500; font-size: .95rem; margin-top: 8px; }
.el-sub { font-size: .76rem; color: var(--muted); }

.strip { border-block: 1px solid var(--line); background: rgba(255,255,255,.02); }
.strip-in { display: grid; grid-template-columns: repeat(4, 1fr); }
.strip-in div { padding: 26px 16px; text-align: center; border-left: 1px solid var(--line); }
.strip-in div:first-child { border-left: 0; }
.strip b { display: block; font: 400 1.25rem Jost, sans-serif; }
.strip span { font-size: .86rem; color: var(--muted); }

.sec { padding: 104px 0; }
.head { text-align: center; margin-bottom: 52px; }
.subjects { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.subject { padding: 32px; }
.subject-top { display: flex; align-items: center; gap: 20px; margin-bottom: 18px; }
.subject-top .el { width: 92px; height: 104px; flex: none; }
.subject-top .el-s { font-size: 2.2rem; } .subject-top .el-name, .subject-top .el-sub { display: none; }
.subject-top h3 { font-size: 1.7rem; font-weight: 400; margin-bottom: 8px; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; margin: 0; }
.chips span { font-size: .78rem; padding: 3px 11px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.topics { border-top: 1px solid var(--line); }
.boards-line { text-align: center; color: var(--muted); margin-top: 32px; }
.boards-line span { display: inline-block; margin: 0 4px; padding: 5px 14px; border-radius: 999px; border: 1px solid var(--line); color: var(--text); font-weight: 500; }

.timeline { list-style: none; padding: 0; margin: 0 auto 32px; max-width: 760px; position: relative; }
.timeline::before { content: ''; position: absolute; left: 27px; top: 30px; bottom: 30px; width: 1px; background: linear-gradient(var(--cyan), var(--violet), var(--pink)); }
.timeline li { display: grid; grid-template-columns: 56px 1fr; gap: 22px; align-items: center; margin-bottom: 18px; }
.t-dot { position: relative; display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; background: var(--bg); border: 1px solid var(--cyan); color: var(--cyan); font: 400 1.1rem Jost, sans-serif; }
.timeline .glass { padding: 22px 26px; }
.timeline h3 { margin-bottom: 4px; }
.timeline p { margin: 0; }
.formats { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 960px; margin: 48px auto 0; }
.format { padding: 28px; }
.format p:last-child { margin: 0; }

.prices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.price { position: relative; padding: 34px; display: flex; flex-direction: column; }
.price .btn { margin-top: auto; }
.price.feat { border-color: transparent; background: linear-gradient(var(--bg), var(--bg)) padding-box, linear-gradient(140deg, var(--cyan), var(--violet), var(--pink)) border-box; border: 1.5px solid transparent; box-shadow: 0 20px 60px rgba(109,40,217,.25); }
.badge { position: absolute; top: 18px; right: 18px; font-size: .74rem; font-weight: 700; padding: 4px 11px; border-radius: 999px; background: var(--amber); color: #2B1D00; }
.amt { font: 300 3.6rem/1 Jost, sans-serif; margin: 10px 0 4px; }
.per { color: var(--muted); margin-bottom: 14px; }
.terms { text-align: center; margin-top: 32px; }

.about { display: grid; grid-template-columns: .85fr 1.15fr; gap: 64px; align-items: center; }
.about-pic { position: relative; }
.about-pic::before { content: ''; position: absolute; inset: -14px; border-radius: 40px; background: conic-gradient(from 200deg, var(--cyan), var(--violet), var(--pink), var(--cyan)); filter: blur(28px); opacity: .45; }
.about-pic .photo-ph { position: relative; aspect-ratio: 4/5; border-radius: 30px; background: #121a30; color: var(--violet); }
.big { font-size: 1.15rem; }
.safe { display: flex; gap: 16px; padding: 18px 22px; margin: 24px 0 18px; }
.safe svg { width: 30px; flex: none; color: var(--amber); }
.safe p { margin: 0; font-size: .95rem; color: var(--muted); }
.safe b { color: var(--text); }

.reviews { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.review { margin: 0; padding: 32px; border-style: dashed; }
.review blockquote { margin: 0 0 14px; font: 300 1.4rem/1.4 Jost, sans-serif; }
.review figcaption { color: var(--muted); font-size: .9rem; }

.faq { display: grid; grid-template-columns: .75fr 1.25fr; gap: 56px; align-items: start; }
.faq-list { padding: 6px 28px; }
.faq-list .acc:last-child { border-bottom: 0; }

.contact { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; padding: 48px; border-radius: 32px; }
.contact-list { display: grid; grid-template-columns: auto 1fr; gap: 10px 20px; margin: 32px 0 0; }
.contact-list dt { font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--cyan); padding-top: 3px; }
.contact-list dd { margin: 0; }
.sf select option { background: #111827; }

.ftr { border-top: 1px solid var(--line); padding: 44px 0 56px; }
.ftr-in { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 18px; }
.ftr nav { display: flex; gap: 22px; }
.ftr nav a { color: var(--muted); }
.ftr p { width: 100%; margin: 0; color: var(--muted); font-size: .88rem; }
.mbar { display: none; }

@media (max-width: 960px) {
  .subjects, .reviews, .formats, .faq, .about, .contact { grid-template-columns: 1fr; }
  .prices { grid-template-columns: 1fr; }
  .strip-in { grid-template-columns: 1fr 1fr; }
  .strip-in div:nth-child(3) { border-left: 0; }
  .strip-in div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .about-pic { max-width: 340px; }
  .about { gap: 44px; } .faq { gap: 24px; }
}
@media (max-width: 780px) {
  .hdr-cta { display: none; }
  .menu-toggle { display: grid; gap: 5px; margin-left: auto; width: 46px; height: 46px; place-content: center; border: 1px solid var(--line); background: var(--glass); border-radius: 12px; cursor: pointer; }
  .menu-toggle span:not(.sr) { width: 18px; height: 2px; background: var(--text); border-radius: 2px; }
  .menu { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; gap: 0; background: rgba(10,15,30,.97); border-bottom: 1px solid var(--line); padding: 8px 20px 16px; }
  .menu.open { display: flex; }
  .menu a { padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--text); }
  .hero { padding: 56px 0 48px; }
  .sec { padding: 68px 0; }
  .el { width: 100px; height: 116px; } .el-s { font-size: 2.3rem; } .els { gap: 10px; } .el-plus { display: none; }
  .subject, .price, .review { padding: 24px; }
  .contact { padding: 26px 20px; }
  .faq-list { padding: 4px 18px; }
  .timeline::before { left: 21px; } .timeline li { grid-template-columns: 44px 1fr; gap: 14px; } .t-dot { width: 44px; height: 44px; font-size: .95rem; }
  .mbar { display: block; position: sticky; bottom: 0; padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); background: linear-gradient(transparent, rgba(10,15,30,.95) 40%); }
  .mbar .btn { width: 100%; }
}
/* Topic check banner */
.tc-band { display: flex; align-items: center; gap: 20px; margin: 40px auto 0; max-width: 900px; padding: 22px 26px; text-decoration: none; color: var(--text); transition: transform .2s; }
.tc-band:hover { transform: translateY(-3px); }
.tc-band b { display: block; font: 500 1.25rem Jost, sans-serif; }
.tc-band > span:nth-child(2) { flex: 1; color: var(--muted); }
.tc-band b { color: var(--text); }
.tc-band-ic { display: grid; place-items: center; flex: none; width: 54px; height: 54px; border-radius: 16px; border: 1px solid var(--line); color: var(--cyan); }
.tc-band-ic svg { width: 28px; }
.tc-band .btn { flex: none; }
@media (max-width: 700px) { .tc-band { flex-direction: column; align-items: flex-start; text-align: left; } }
@media (max-width: 520px) {
  .els { gap: 8px; flex-wrap: nowrap; }
  .el { width: 76px; height: 92px; border-radius: 14px; } .el-s { font-size: 1.75rem; } .el-name { font-size: .74rem; margin-top: 4px; } .el-sub { display: none; } .el-n { top: 6px; left: 8px; font-size: .65rem; }
}