:root {
  --bg: #0a1020; --bg2: #0d1528; --card: #111a30; --card2: #15203a; --line: #1f2b47; --line2: #2a3a5e;
  --text: #e7edf8; --mute: #8b9aba; --dim: #5f6f92;
  --acc: #2dd4bf; --acc-ink: #04201c; --acc-soft: rgba(45, 212, 191, .12);
  --gold: #fbbf24; --gold-soft: rgba(251, 191, 36, .12);
  --ok: #34d399; --warn: #fbbf24; --bad: #f87171; --info: #60a5fa;
  --r: 14px; --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.6 Inter, system-ui, -apple-system, Segoe UI, sans-serif; -webkit-font-smoothing: antialiased; }
a { color: var(--acc); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .5em; }
h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 800; }
h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 700; }
h3 { font-size: 18px; font-weight: 600; }
p { margin: 0 0 1em; }
code, .mono { font-family: var(--mono); font-size: .92em; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.mute { color: var(--mute); }
.dim { color: var(--dim); }
.inline { display: inline; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* header */
.top { position: sticky; top: 0; z-index: 20; background: rgba(10, 16, 32, .85); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.top-in { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; font-size: 18px; letter-spacing: -.01em; }
.brand:hover { text-decoration: none; }
.brand b { color: var(--acc); font-weight: 800; }
.nav { display: flex; align-items: center; gap: 22px; margin-left: auto; }
.nav a { color: var(--mute); font-weight: 500; font-size: 14px; }
.nav a:hover, .nav a.on { color: var(--text); text-decoration: none; }
.nav a.btn { color: var(--acc-ink); }
.nav a.btn-ghost { color: var(--text); }
.nav-sep { width: 1px; height: 20px; background: var(--line2); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; border-radius: 2px; }
button.link { background: none; border: 0; color: var(--mute); font: inherit; font-size: 14px; cursor: pointer; padding: 0; }
button.link:hover { color: var(--text); }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--acc); color: var(--acc-ink); border: 1px solid var(--acc);
  padding: 11px 20px; border-radius: 10px; font: 600 15px Inter, sans-serif; cursor: pointer; transition: transform .1s, filter .15s; white-space: nowrap; }
.btn:hover { filter: brightness(1.08); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-sm { padding: 7px 14px; font-size: 14px; border-radius: 8px; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line2); }
.btn-ghost:hover { border-color: var(--acc); }
.btn-danger { background: transparent; color: var(--bad); border-color: rgba(248, 113, 113, .4); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* hero */
.hero { position: relative; padding: 88px 0 72px; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero::before { content: ''; position: absolute; inset: 0; background:
  radial-gradient(800px 400px at 80% -10%, rgba(45, 212, 191, .16), transparent 60%),
  radial-gradient(600px 300px at 0% 110%, rgba(96, 165, 250, .10), transparent 60%); pointer-events: none; }
.hero::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px; mask-image: radial-gradient(ellipse at 70% 30%, #000 10%, transparent 70%); opacity: .35; pointer-events: none; }
.hero .wrap { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border: 1px solid var(--line2); border-radius: 99px; font-size: 13px; color: var(--mute); margin-bottom: 22px; background: rgba(17, 26, 48, .6); }
.eyebrow i { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 4px rgba(52, 211, 153, .15); }
.hero h1 em { font-style: normal; color: var(--acc); }
.lead { font-size: 18px; color: var(--mute); max-width: 560px; margin-bottom: 30px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-card { background: linear-gradient(180deg, var(--card2), var(--card)); border: 1px solid var(--line2); border-radius: 18px; padding: 22px; box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6); }
.hero-card .row { display: flex; justify-content: space-between; align-items: baseline; padding: 12px 0; border-bottom: 1px dashed var(--line); font-size: 14px; }
.hero-card .row:last-child { border: 0; }
.hero-card .k { color: var(--mute); }
.hero-card .v { font-family: var(--mono); }
.price-big { font-size: 40px; font-weight: 800; letter-spacing: -.03em; }
.strike { text-decoration: line-through; color: var(--dim); }
.save { display: inline-block; background: var(--gold-soft); color: var(--gold); font-weight: 700; font-size: 12px; padding: 3px 8px; border-radius: 6px; letter-spacing: .02em; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin-top: 56px; }
.stat { background: var(--bg2); padding: 20px 22px; }
.stat b { display: block; font-size: 26px; font-weight: 800; letter-spacing: -.02em; }
.stat span { color: var(--mute); font-size: 13px; }

/* sections */
.sec { padding: 80px 0; border-bottom: 1px solid var(--line); }
.sec-head { max-width: 640px; margin-bottom: 40px; }
.sec-head p { color: var(--mute); font-size: 17px; }
.grid { display: grid; gap: 16px; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.g2 { grid-template-columns: repeat(2, 1fr); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 22px; }
.card h3 { margin-bottom: 6px; }
.card p { color: var(--mute); font-size: 14px; margin: 0; }
a.card { color: inherit; display: block; transition: border-color .15s, transform .15s; }
a.card:hover { border-color: var(--acc); text-decoration: none; transform: translateY(-2px); }
.card .from { margin-top: 16px; display: flex; align-items: baseline; gap: 8px; }
.card .from b { font-size: 22px; }
.ico { width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--acc-soft); color: var(--acc); margin-bottom: 14px; }
.step-n { font-family: var(--mono); color: var(--acc); font-size: 13px; margin-bottom: 8px; display: block; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--line2); background: var(--card); padding: 6px 12px; border-radius: 99px; font-size: 13px; color: var(--mute); }
.chip b { color: var(--text); font-weight: 600; }

.coins { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 20px; }
.coin { display: flex; align-items: center; gap: 12px; background: var(--card); border: 1px solid var(--line); padding: 12px 16px; border-radius: 12px; }
.coin-dot { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 13px; }
.coin small { display: block; color: var(--mute); font-size: 12px; }

details.faq { border-bottom: 1px solid var(--line); padding: 18px 0; }
details.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
details.faq summary::after { content: '+'; color: var(--acc); font-size: 20px; line-height: 1; }
details.faq[open] summary::after { content: '–'; }
details.faq p { color: var(--mute); margin: 12px 0 0; }

/* catalog */
.page-head { padding: 48px 0 24px; }
.filters { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 14px; position: sticky; top: 72px; z-index: 5; }
.cats { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 16px; }
.cat-btn { background: var(--card); border: 1px solid var(--line2); color: var(--mute); padding: 8px 14px; border-radius: 99px; font: 500 14px Inter, sans-serif; cursor: pointer; }
.cat-btn.on { background: var(--acc-soft); color: var(--acc); border-color: var(--acc); }
label.f { display: block; font-size: 12px; color: var(--mute); }
label.f span { display: block; margin-bottom: 4px; }
input, select, textarea { width: 100%; background: var(--bg2); color: var(--text); border: 1px solid var(--line2); border-radius: 9px; padding: 10px 12px; font: 14px Inter, sans-serif; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--acc); box-shadow: 0 0 0 3px var(--acc-soft); }
.result-bar { display: flex; justify-content: space-between; align-items: center; margin: 18px 0 10px; color: var(--mute); font-size: 14px; }

table.t { width: 100%; border-collapse: collapse; font-size: 14px; }
table.t th { text-align: left; color: var(--dim); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; padding: 10px 12px; border-bottom: 1px solid var(--line); }
table.t td { padding: 14px 12px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.t tr:hover td { background: rgba(21, 32, 58, .5); }
.tbl { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); overflow-x: auto; }
.plan-name b { display: block; font-weight: 600; }
.plan-name small { color: var(--dim); font-family: var(--mono); font-size: 12px; }
.spec { font-family: var(--mono); font-size: 13px; white-space: nowrap; }
.price-cell { text-align: right; white-space: nowrap; }
.price-cell b { font-size: 17px; }
.price-cell small { display: block; font-size: 12px; }
.tag { display: inline-block; font-size: 11px; padding: 2px 7px; border-radius: 5px; background: var(--card2); border: 1px solid var(--line2); color: var(--mute); margin-right: 4px; }
.tag-gpu { color: #c4b5fd; border-color: rgba(196, 181, 253, .35); }
.tag-metal { color: var(--gold); border-color: rgba(251, 191, 36, .35); }
.more { text-align: center; padding: 20px; }

/* forms & panels */
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 26px; }
.auth { max-width: 420px; margin: 64px auto; }
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 13px; color: var(--mute); margin-bottom: 6px; font-weight: 500; }
.split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px; align-items: start; }
.summary { position: sticky; top: 84px; }
.summary .line { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.summary .total { font-size: 26px; font-weight: 800; }
.opts { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.opt { position: relative; }
.opt input { position: absolute; opacity: 0; }
.opt span { display: block; border: 1px solid var(--line2); border-radius: 10px; padding: 12px; cursor: pointer; font-size: 14px; background: var(--bg2); }
.opt span small { display: block; color: var(--mute); font-size: 12px; }
.opt input:checked + span { border-color: var(--acc); background: var(--acc-soft); }
.opt input:focus-visible + span { box-shadow: 0 0 0 3px var(--acc-soft); }
.kv { display: grid; grid-template-columns: 140px 1fr; gap: 10px 16px; font-size: 14px; }
.kv dt { color: var(--mute); }
.kv dd { margin: 0; word-break: break-all; }

.pill { display: inline-block; font-size: 12px; font-weight: 600; padding: 3px 9px; border-radius: 99px; }
.pill-ok { background: rgba(52, 211, 153, .12); color: var(--ok); }
.pill-warn { background: rgba(251, 191, 36, .12); color: var(--warn); }
.pill-bad { background: rgba(248, 113, 113, .12); color: var(--bad); }
.pill-info { background: rgba(96, 165, 250, .12); color: var(--info); }
.pill-mute { background: var(--card2); color: var(--mute); }
.flash { margin: 20px 0 0; padding: 12px 16px; border-radius: 10px; border: 1px solid; font-size: 14px; }
.flash-ok { border-color: rgba(52, 211, 153, .4); background: rgba(52, 211, 153, .08); color: var(--ok); }
.flash-bad { border-color: rgba(248, 113, 113, .4); background: rgba(248, 113, 113, .08); color: var(--bad); }

/* invoice / pay */
.pay-methods { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 12px; }
.pay-methods button { text-align: left; background: var(--bg2); border: 1px solid var(--line2); color: var(--text); border-radius: 12px; padding: 16px; cursor: pointer; font: inherit; }
.pay-methods button:hover { border-color: var(--acc); }
.pay-methods b { display: block; font-size: 16px; }
.pay-methods small { color: var(--mute); }
.paybox { display: grid; grid-template-columns: 220px 1fr; gap: 26px; align-items: start; }
.qr { background: #fff; padding: 12px; border-radius: 12px; width: 220px; height: 220px; }
.qr img, .qr canvas { width: 100% !important; height: 100% !important; }
.copy { display: flex; gap: 8px; align-items: stretch; margin-bottom: 14px; }
.copy code { flex: 1; background: var(--bg2); border: 1px solid var(--line2); border-radius: 9px; padding: 10px 12px; word-break: break-all; font-size: 13px; }
.copy button { background: var(--card2); color: var(--text); border: 1px solid var(--line2); border-radius: 9px; padding: 0 14px; cursor: pointer; font: 500 13px Inter, sans-serif; }
.amount { font-family: var(--mono); font-size: 28px; font-weight: 600; color: var(--acc); }
.warnbox { background: var(--gold-soft); border: 1px solid rgba(251, 191, 36, .3); color: #fde68a; border-radius: 10px; padding: 12px 14px; font-size: 13px; }
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid var(--line2); border-top-color: var(--acc); border-radius: 50%; animation: spin 1s linear infinite; vertical-align: -2px; margin-right: 6px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* admin */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 24px; overflow-x: auto; }
.tabs a { padding: 10px 14px; color: var(--mute); border-bottom: 2px solid transparent; white-space: nowrap; font-weight: 500; }
.tabs a.on { color: var(--text); border-color: var(--acc); }
.tabs a:hover { text-decoration: none; color: var(--text); }
.neg { color: var(--bad); }
.pos { color: var(--ok); }

/* footer */
.foot { padding: 48px 0 24px; }
.foot-in { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.foot-in p { max-width: 360px; font-size: 14px; margin-top: 12px; }
.foot-links { display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.foot-links a { color: var(--mute); }
.foot-base { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 13px; }

.legal h2 { margin-top: 40px; }
.legal p, .legal li { color: var(--mute); }

@media (max-width: 960px) {
  .hero-grid, .split, .g3, .g4 { grid-template-columns: 1fr; }
  .g2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .filters { grid-template-columns: repeat(2, 1fr); position: static; }
  .summary { position: static; }
  .nav-toggle { display: block; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--bg2); border-bottom: 1px solid var(--line); padding: 16px 20px; gap: 14px; }
  .nav-open .nav { display: flex; }
  .nav-sep { display: none; }
  .paybox { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; gap: 2px 0; }
  .kv dd { margin-bottom: 10px; }
  .hide-sm { display: none; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .hero { padding: 56px 0 48px; }
  .sec { padding: 56px 0; }
  table.t td, table.t th { padding: 10px 8px; }
}