/* =========================================================================
 * Qovera VPN — status / subscription theme
 * Aesthetic: dark "operations console". Near-black blue-teal base, a single
 * luminous aurora-mint signal accent, monospaced data type as the signature
 * voice. Layered depth (stacked translucent panels) nods to the "Qovera"
 * chained-hop architecture. No webfont required — system stacks only.
 * ========================================================================= */

:root {
  /* palette */
  --bg:        #060a0f;
  --bg-2:      #080d14;
  --panel:     #0c131c;
  --panel-2:   #0f1822;
  --line:      rgba(150, 180, 200, 0.10);
  --line-2:    rgba(150, 180, 200, 0.16);
  --text:      #e8f0f4;
  --muted:     #8597a8;
  --faint:     #5b6b7a;

  /* signal colors */
  --up:        #2ee6a6;   /* operational / brand accent */
  --up-dim:    rgba(46, 230, 166, 0.14);
  --warn:      #f4b34a;
  --warn-dim:  rgba(244, 179, 74, 0.14);
  --down:      #ff5d6c;
  --down-dim:  rgba(255, 93, 108, 0.14);
  --ice:       #7fc6da;   /* secondary cool highlight (links) */

  /* type */
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", "Helvetica Neue", Arial, sans-serif;

  --radius: 14px;
  --radius-sm: 10px;
  --maxw: 1080px;
  --shadow: 0 1px 0 rgba(255,255,255,0.04) inset, 0 18px 50px -28px rgba(0,0,0,0.9);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* layered atmospheric background: aurora glow + faint grid + grain */
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(120% 80% at 50% -10%, rgba(46, 230, 166, 0.10), transparent 60%),
    radial-gradient(90% 60% at 90% 0%, rgba(127, 198, 218, 0.06), transparent 55%),
    linear-gradient(180deg, var(--bg-2), var(--bg) 40%);
}
body::after {
  content: "";
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(150,180,200,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(150,180,200,0.035) 1px, transparent 1px);
  background-size: 56px 56px, 56px 56px;
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 80%);
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 30%, transparent 80%);
}

a { color: var(--ice); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* ---- header ----------------------------------------------------------- */
.site-head {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(1.4) blur(12px);
  background: linear-gradient(180deg, rgba(8,13,20,0.86), rgba(8,13,20,0.5));
  border-bottom: 1px solid var(--line);
}
.site-head .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 700; }
.brand .glyph {
  width: 30px; height: 30px; flex: 0 0 30px; position: relative;
}
.brand .glyph i {
  position: absolute; left: 0; right: 0; height: 5px; border-radius: 2px;
  background: linear-gradient(90deg, var(--up), var(--ice));
  box-shadow: 0 0 12px rgba(46,230,166,0.5);
}
.brand .glyph i:nth-child(1) { top: 3px;  opacity: 0.55; }
.brand .glyph i:nth-child(2) { top: 12px; opacity: 0.8; }
.brand .glyph i:nth-child(3) { top: 21px; opacity: 1; }
.brand .name { font-family: var(--mono); letter-spacing: 0.04em; font-size: 16px; }
.brand .name b { color: var(--up); }
.head-actions { display: flex; align-items: center; gap: 10px; }

/* status pill (reused) */
.pill {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.03em;
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line-2);
  background: var(--panel); white-space: nowrap;
}
.dot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 9px; }
.dot.up   { background: var(--up);   box-shadow: 0 0 0 0 var(--up);   animation: pulse 2.4s infinite; }
.dot.warn { background: var(--warn); box-shadow: 0 0 0 0 var(--warn); animation: pulse 2.4s infinite; }
.dot.down { background: var(--down); box-shadow: 0 0 0 0 var(--down); animation: pulse 2.4s infinite; }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 currentColor; }
  70%  { box-shadow: 0 0 0 7px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}
.pill.up   { color: var(--up);   border-color: rgba(46,230,166,0.35);  background: var(--up-dim); }
.pill.warn { color: var(--warn); border-color: rgba(244,179,74,0.35);  background: var(--warn-dim); }
.pill.down { color: var(--down); border-color: rgba(255,93,108,0.35);  background: var(--down-dim); }

/* ---- buttons ---------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--mono); font-size: 13.5px; letter-spacing: 0.02em;
  padding: 11px 16px; border-radius: var(--radius-sm); cursor: pointer;
  border: 1px solid var(--line-2); background: var(--panel-2); color: var(--text);
  transition: transform .12s ease, border-color .15s ease, background .15s ease;
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); border-color: var(--line-2); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn .ico { font-size: 15px; line-height: 1; }
.btn.primary {
  background: linear-gradient(180deg, rgba(46,230,166,0.22), rgba(46,230,166,0.10));
  border-color: rgba(46,230,166,0.45); color: #d6fff0;
}
.btn.primary:hover { box-shadow: 0 8px 30px -12px rgba(46,230,166,0.5); }
.btn.block { width: 100%; }
.btn.ghost { background: transparent; }

/* ---- panels / cards --------------------------------------------------- */
.panel {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.025), transparent 40%),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.section { margin: 34px 0; }
.section-title {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--faint); margin: 0 0 14px; font-weight: 600;
  display: flex; align-items: center; gap: 10px;
}
.section-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* ---- hero (status) ---------------------------------------------------- */
.hero { padding: 46px 0 8px; }
.hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 22px; align-items: stretch; }
.hero-main { padding: 30px 30px 28px; }
.hero-eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--up); margin: 0 0 12px;
}
.hero h1 {
  font-family: var(--mono); font-weight: 700;
  font-size: clamp(26px, 4.4vw, 40px); line-height: 1.08; margin: 0 0 14px;
  letter-spacing: -0.01em;
}
.hero h1 .accent { color: var(--up); }
.hero p.lead { color: var(--muted); margin: 0 0 22px; max-width: 52ch; }

/* chained-hop visual (the "layers") */
.chain { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.chain .hop {
  font-family: var(--mono); font-size: 12px; padding: 7px 11px; border-radius: 8px;
  border: 1px solid var(--line-2); background: var(--panel-2); color: var(--muted);
  display: inline-flex; align-items: center; gap: 7px;
}
.chain .hop b { color: var(--text); font-weight: 600; }
.chain .arrow { color: var(--faint); font-family: var(--mono); }
.chain .hop.secure { border-color: rgba(46,230,166,0.3); color: #bff4e3; }

/* uptime stat card */
.stat-card { padding: 26px; display: flex; flex-direction: column; justify-content: center; gap: 6px; }
.stat-card .big {
  font-family: var(--mono); font-size: clamp(40px, 7vw, 58px); font-weight: 700;
  line-height: 1; color: var(--up); letter-spacing: -0.02em;
}
.stat-card .label { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); }
.stat-row { display: flex; gap: 26px; margin-top: 14px; flex-wrap: wrap; }
.stat-row .kv .v { font-family: var(--mono); font-size: 20px; font-weight: 600; }
.stat-row .kv .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }

/* ---- region/node grid ------------------------------------------------- */
.nodes { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.node {
  padding: 16px 16px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--line); background: var(--panel);
  position: relative; overflow: hidden;
  transition: border-color .15s ease, transform .15s ease;
}
.node:hover { transform: translateY(-2px); border-color: var(--line-2); }
.node .top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.node .flag { font-size: 18px; }
.node .region { font-weight: 600; font-size: 15px; display: flex; align-items: center; gap: 8px; }
.node .host { font-family: var(--mono); font-size: 11.5px; color: var(--faint); margin-top: 2px; }
.node .meta { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; }
.node .ping { font-family: var(--mono); font-size: 12.5px; color: var(--muted); }
.node .ping b { color: var(--text); font-weight: 600; }
.node .barline { height: 4px; border-radius: 3px; background: var(--up-dim); margin-top: 11px; overflow: hidden; }
.node .barline i { display: block; height: 100%; border-radius: 3px; background: linear-gradient(90deg, var(--up), var(--ice)); width: 0; transition: width .9s ease; }
.node.is-down { opacity: 0.8; }
.node.is-down .barline i { background: var(--down); }
.node .badge-prem {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 2px 7px; border-radius: 999px; border: 1px solid rgba(244,179,74,0.4);
  color: var(--warn); background: var(--warn-dim);
}

/* ---- offer / CTA ------------------------------------------------------ */
.offer { padding: 30px; display: grid; grid-template-columns: 1.5fr 1fr; gap: 26px; align-items: center; }
.offer h2 { font-family: var(--mono); font-size: 22px; margin: 0 0 10px; }
.offer p { color: var(--muted); margin: 0 0 8px; }
.offer ul { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 8px; }
.offer ul li { display: flex; gap: 10px; align-items: flex-start; color: var(--text); font-size: 14.5px; }
.offer ul li::before { content: "▹"; color: var(--up); font-family: var(--mono); }
.offer .cta { display: flex; flex-direction: column; gap: 10px; }
.price-tag { font-family: var(--mono); }
.price-tag .num { font-size: 34px; font-weight: 700; color: var(--text); }
.price-tag .per { color: var(--faint); font-size: 13px; }

/* ---- changelog -------------------------------------------------------- */
.changelog { position: relative; padding-left: 22px; }
.changelog::before { content: ""; position: absolute; left: 5px; top: 6px; bottom: 6px; width: 2px; background: var(--line-2); }
.entry { position: relative; padding: 0 0 18px 4px; }
.entry::before {
  content: ""; position: absolute; left: -21px; top: 6px; width: 10px; height: 10px;
  border-radius: 50%; background: var(--panel); border: 2px solid var(--up);
}
.entry .when { font-family: var(--mono); font-size: 12px; color: var(--faint); letter-spacing: 0.04em; }
.entry .what { margin-top: 3px; }
.entry .tag {
  font-family: var(--mono); font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.06em;
  padding: 1px 7px; border-radius: 5px; margin-right: 8px; border: 1px solid var(--line-2); color: var(--muted);
}
.entry .tag.ok  { color: var(--up);   border-color: rgba(46,230,166,0.35); }
.entry .tag.fix { color: var(--ice); }

/* ---- how it works (3 steps) ------------------------------------------- */
.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.how .step {
  padding: 22px 20px; border-radius: var(--radius); border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.025), transparent 40%), var(--panel);
  display: flex; flex-direction: column; gap: 8px;
}
.how .step .n {
  font-family: var(--mono); font-size: 13px; font-weight: 700; color: var(--up);
  width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center;
  border: 1px solid rgba(46,230,166,0.35); background: var(--up-dim);
}
.how .step h3 { font-family: var(--mono); font-size: 15px; margin: 4px 0 0; font-weight: 600; }
.how .step p { color: var(--muted); margin: 0; font-size: 13.5px; }
@media (max-width: 760px) { .how { grid-template-columns: 1fr; } }

/* ---- tariffs ---------------------------------------------------------- */
.tariffs { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.tariff {
  padding: 22px 20px 20px; border-radius: var(--radius); border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,0.025), transparent 40%), var(--panel);
  display: flex; flex-direction: column; gap: 14px; position: relative; min-width: 0;
}
.tariff.featured { border-color: rgba(46,230,166,0.42); box-shadow: 0 0 0 1px rgba(46,230,166,0.18), 0 18px 50px -28px rgba(46,230,166,0.4); }
.tariff .ribbon {
  position: absolute; top: -1px; right: -1px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 0 var(--radius) 0 10px;
  color: #06120d; background: var(--up); font-weight: 700;
}
.tariff .t-name { font-family: var(--mono); font-size: 16px; font-weight: 700; }
.tariff .t-free { color: var(--up); }
.tariff .t-price { font-family: var(--mono); }
.tariff .t-price .num { font-size: 26px; font-weight: 700; color: var(--text); }
.tariff .t-price .per { color: var(--faint); font-size: 12.5px; }
.tariff .t-price .stars { display: block; color: var(--faint); font-size: 12px; margin-top: 2px; }
.tariff ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 7px; }
.tariff ul li { display: flex; gap: 9px; align-items: flex-start; color: var(--text); font-size: 13.5px; }
.tariff ul li::before { content: "›"; color: var(--up); font-family: var(--mono); }
.tariff .btn { margin-top: auto; }
.tariff-note { font-family: var(--mono); font-size: 12px; color: var(--faint); margin: 14px 0 0; }

/* ---- trust ("почему надёжно") ----------------------------------------- */
.trust { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.trust .item {
  padding: 20px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--panel);
  transition: border-color .15s ease, transform .15s ease;
}
.trust .item:hover { transform: translateY(-2px); border-color: var(--line-2); }
.trust .item .ic { font-size: 22px; line-height: 1; }
.trust .item h3 { font-family: var(--mono); font-size: 14.5px; margin: 12px 0 6px; font-weight: 600; }
.trust .item p { color: var(--muted); margin: 0; font-size: 13.5px; }

/* ---- FAQ (native <details> accordion) --------------------------------- */
.faq { display: grid; gap: 10px; }
.faq-item {
  border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--panel);
  overflow: hidden; transition: border-color .15s ease;
}
.faq-item[open] { border-color: var(--line-2); }
.faq-item > summary {
  list-style: none; cursor: pointer; padding: 16px 18px;
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  font-weight: 600; color: var(--text); font-size: 14.5px;
}
.faq-item > summary::-webkit-details-marker { display: none; }
.faq-item > summary::after {
  content: "+"; font-family: var(--mono); font-size: 20px; color: var(--up);
  flex: 0 0 auto; transition: transform .2s ease; line-height: 1;
}
.faq-item[open] > summary::after { content: "\2212"; } /* minus */
.faq-item > summary:hover { color: var(--up); }
.faq-item .faq-body { padding: 0 18px 16px; color: var(--muted); font-size: 14px; }
.faq-item .faq-body a { font-family: inherit; }

/* ---- footer ----------------------------------------------------------- */
.site-foot { border-top: 1px solid var(--line); margin-top: 46px; padding: 26px 0 40px; color: var(--faint); }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 14px 26px; align-items: center; justify-content: space-between; }
.site-foot .legal { font-size: 12.5px; max-width: 62ch; line-height: 1.5; }
.site-foot .ver { font-family: var(--mono); font-size: 12px; }

/* =========================================================================
 *  Subscription page (s.html)
 * ========================================================================= */
.sub-grid { display: grid; grid-template-columns: 1fr 320px; gap: 22px; align-items: start; }
.sub-main { display: grid; gap: 18px; }

.sub-head { padding: 26px 28px; }
.sub-head .label { font-family: var(--mono); font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); }
.sub-head h1 { font-family: var(--mono); font-size: 24px; margin: 6px 0 2px; }
.sub-head .who { color: var(--muted); font-family: var(--mono); font-size: 13px; }

/* usage */
.usage { display: grid; gap: 14px; }
.usage .row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.usage .row .lbl { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--faint); }
.usage .row .val { font-family: var(--mono); }
.usage .row .val b { font-size: 18px; }
.meter { height: 12px; border-radius: 999px; background: var(--panel-2); border: 1px solid var(--line); overflow: hidden; position: relative; }
.meter i { display: block; height: 100%; width: 0; border-radius: 999px; transition: width 1s cubic-bezier(.2,.7,.2,1);
  background: linear-gradient(90deg, var(--up), var(--ice)); }
.meter.warn i { background: linear-gradient(90deg, var(--warn), #f7d488); }
.meter.crit i { background: linear-gradient(90deg, var(--down), #ff9aa4); }
.usage .legend { display: flex; gap: 18px; flex-wrap: wrap; font-family: var(--mono); font-size: 12px; color: var(--muted); }
.usage .legend b { color: var(--text); }

/* connect buttons */
.connect { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.connect .btn { padding: 14px 16px; justify-content: flex-start; }
.connect .btn .sub { display: block; font-size: 11px; color: var(--faint); letter-spacing: 0; margin-top: 2px; }
.connect .btn .ttl { display: block; }
@media (max-width: 520px) { .connect { grid-template-columns: 1fr; } }

/* sub link field */
.linkbox { display: flex; gap: 10px; align-items: stretch; }
.linkbox input {
  flex: 1; min-width: 0; font-family: var(--mono); font-size: 12.5px; color: var(--muted);
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 11px 13px;
}
.linkbox input:focus { outline: none; border-color: rgba(46,230,166,0.4); color: var(--text); }

/* QR card */
.qr-card { padding: 22px; text-align: center; position: sticky; top: 84px; }
.qr-card .qr {
  width: 100%; max-width: 230px; margin: 0 auto; aspect-ratio: 1; background: #fff;
  border-radius: 12px; padding: 12px; box-shadow: 0 14px 40px -18px rgba(0,0,0,0.8);
}
.qr-card .qr svg { display: block; border-radius: 4px; }
.qr-card .hint { font-family: var(--mono); font-size: 11.5px; color: var(--faint); margin-top: 14px; letter-spacing: 0.03em; }
.qr-card .renew { margin-top: 16px; }

/* tabs */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.tab {
  font-family: var(--mono); font-size: 13px; padding: 9px 15px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--line); background: transparent; color: var(--muted); transition: all .15s ease;
}
.tab:hover { color: var(--text); border-color: var(--line-2); }
.tab.active { color: #06120d; background: var(--up); border-color: var(--up); font-weight: 600; }
.tabpane { display: none; animation: fade .25s ease; }
.tabpane.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li { display: grid; grid-template-columns: 30px 1fr; gap: 14px; align-items: start; }
.steps li::before {
  counter-increment: step; content: counter(step);
  font-family: var(--mono); font-size: 13px; font-weight: 700; color: var(--up);
  width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
  border: 1px solid rgba(46,230,166,0.35); background: var(--up-dim);
}
.steps li .t { color: var(--text); }
.steps li .t small { display: block; color: var(--muted); margin-top: 2px; font-size: 13px; }
.steps .preset {
  font-family: var(--mono); font-size: 12px; padding: 1px 7px; border-radius: 5px;
  border: 1px solid rgba(46,230,166,0.35); color: var(--up); background: var(--up-dim);
}

/* toast */
.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%) translateY(20px);
  background: var(--panel-2); border: 1px solid rgba(46,230,166,0.4); color: var(--text);
  font-family: var(--mono); font-size: 13px; padding: 11px 18px; border-radius: 999px;
  box-shadow: 0 16px 50px -16px rgba(0,0,0,0.9); opacity: 0; pointer-events: none;
  transition: opacity .2s ease, transform .2s ease; z-index: 60;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* error / empty token state */
.notice { padding: 30px; text-align: center; }
.notice h2 { font-family: var(--mono); margin: 0 0 8px; }
.notice p { color: var(--muted); margin: 0 0 16px; }

/* ---- responsive ------------------------------------------------------- */
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .offer { grid-template-columns: 1fr; }
  .sub-grid { grid-template-columns: 1fr; }
  .qr-card { position: static; max-width: 360px; }
}
@media (max-width: 520px) {
  .site-head .wrap { height: 56px; }
  .head-actions .pill .txt { display: none; }
  .hero { padding: 30px 0 4px; }
  .hero-main { padding: 24px 20px; }
}

/* respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}