/* Revive VPN — neon server-room style from the product's own banners:
   deep navy, green→cyan→violet glowing frames, heartbeat wordmark, the cool cat. */
:root {
  --bg: #050b14; --bg-2: #0a1422; --bg-3: #0f1c2e; --ink: #eafff6; --ink-2: #93aab8; --line: rgba(120, 255, 200, .14);
  --green: #3dff9a; --cyan: #37d6ff; --violet: #8b6bff; --pink: #ff7ad9;
  --frame: linear-gradient(110deg, var(--green), var(--cyan) 50%, var(--violet));
  --display: "Montserrat", "Inter", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; overflow-x: clip; background: var(--bg); scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.6 var(--body); overflow-x: clip; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 3px; border-radius: 10px; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 40px); }
.mono { font: 600 12px/1.3 "JetBrains Mono", monospace; letter-spacing: .12em; text-transform: uppercase; }
.g { color: var(--green); }

/* server-room backdrop: two rows of racks with a few blinking LEDs (cheap CSS) */
.room { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden;
  background:
    radial-gradient(80vw 60vh at 50% -10%, rgba(55, 214, 255, .10), transparent 70%),
    radial-gradient(60vw 50vh at 100% 100%, rgba(139, 107, 255, .12), transparent 70%),
    var(--bg); }
.room::before, .room::after { content: ""; position: absolute; top: 0; bottom: 0; width: 22vw; max-width: 300px; opacity: .55;
  background:
    repeating-linear-gradient(0deg, transparent 0 18px, rgba(61, 255, 154, .08) 18px 20px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.03) 0 2px, transparent 2px 46px),
    linear-gradient(90deg, #07121f, #0b1a2b); }
.room::before { left: 0; mask-image: linear-gradient(90deg, #000 30%, transparent); -webkit-mask-image: linear-gradient(90deg, #000 30%, transparent); }
.room::after { right: 0; mask-image: linear-gradient(270deg, #000 30%, transparent); -webkit-mask-image: linear-gradient(270deg, #000 30%, transparent); }
.room i { position: absolute; width: 4px; height: 4px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); animation: led 2.4s steps(2) infinite; }
.room i:nth-child(3n) { background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation-duration: 3.1s; }
.room i:nth-child(4n) { background: var(--violet); box-shadow: 0 0 8px var(--violet); animation-duration: 1.7s; }
@keyframes led { 50% { opacity: .15; } }

/* neon frame (gradient border via mask) */
.neon { position: relative; border-radius: 28px; background: rgba(10, 20, 34, .78); }
.neon::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 2px; background: var(--frame); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none; }
.neon::after { content: ""; position: absolute; inset: -1px; border-radius: inherit; box-shadow: 0 0 28px rgba(61, 255, 154, .22), 0 0 60px rgba(139, 107, 255, .16); pointer-events: none; }

/* heartbeat wordmark: REV + pulse (the "I") + VE */
.word { display: inline-flex; align-items: center; font: 800 1em/1 var(--display); letter-spacing: -.01em; color: #fff; white-space: nowrap; }
.word svg { height: 1.12em; width: .74em; margin: 0 -.06em 0 -.02em; overflow: visible; }
.word svg path { fill: none; stroke: var(--green); stroke-width: 7; stroke-linecap: round; stroke-linejoin: round; filter: drop-shadow(0 0 6px rgba(61, 255, 154, .9)); }
.word .sub { font: 700 .34em/1 var(--display); letter-spacing: .08em; margin: .9em 0 0 .25em; align-self: flex-end; color: #fff; }
.beat path { stroke-dasharray: 120; animation: beat 2.6s cubic-bezier(.5, 0, .2, 1) infinite; }
@keyframes beat { 0% { stroke-dashoffset: 120; } 45%, 100% { stroke-dashoffset: 0; } }

/* header */
.top { position: sticky; top: 0; z-index: 50; padding: 12px 0; background: rgba(5, 11, 20, .72); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 14px; }
.top .word { font-size: 24px; text-decoration: none; }
.top nav { margin-left: auto; display: flex; gap: 2px; }
.top nav a { text-decoration: none; padding: 8px 12px; border-radius: 10px; color: var(--ink-2); font-weight: 500; font-size: 15px; }
.top nav a:hover { color: var(--ink); background: rgba(61, 255, 154, .08); }
.chip { height: 38px; padding: 0 13px; border-radius: 999px; border: 1px solid var(--line); background: transparent; cursor: pointer; display: inline-flex; align-items: center; text-decoration: none; font: 600 12px/1 "JetBrains Mono", monospace; letter-spacing: .06em; color: var(--ink); }
.chip:hover { border-color: var(--green); color: var(--green); }
.ctrl { display: flex; gap: 6px; }
@media (max-width: 860px) { .top nav { display: none; } .ctrl { margin-left: auto; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; text-decoration: none; font: 800 15px/1 var(--display); letter-spacing: .06em; text-transform: uppercase; padding: 17px 26px; border-radius: 999px; border: 0; cursor: pointer; transition: transform .2s, box-shadow .3s; }
.btn:hover { transform: translateY(-2px); }
.btn-go { background: var(--green); color: #03140b; box-shadow: 0 0 0 0 rgba(61, 255, 154, .5), 0 10px 30px -8px rgba(61, 255, 154, .7); animation: glow 2.6s ease-in-out infinite; }
@keyframes glow { 50% { box-shadow: 0 0 0 8px rgba(61, 255, 154, 0), 0 10px 40px -6px rgba(61, 255, 154, .9); } }
.btn-ghost { background: rgba(255, 255, 255, .06); color: var(--ink); box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, .25); }
.btn-ghost:hover { box-shadow: inset 0 0 0 1.5px var(--cyan); }

/* hero */
.hero { padding: clamp(28px, 5vw, 60px) 0 0; }
.hero .neon { display: grid; grid-template-columns: 1.15fr .85fr; align-items: center; gap: 20px; padding: clamp(26px, 4.5vw, 60px); overflow: hidden; }
.hero .word { font-size: clamp(54px, 8.4vw, 112px); }
.hero h1 { margin: 26px 0 6px; font: 800 clamp(30px, 3.8vw, 52px)/1.05 var(--display); letter-spacing: -.02em; }
.hero h1 .g { display: block; text-shadow: 0 0 22px rgba(61, 255, 154, .45); }
.hero .pts { display: flex; flex-wrap: wrap; gap: 6px 14px; margin: 14px 0 28px; color: var(--ink-2); font-weight: 500; }
.hero .pts span + span::before { content: "•"; margin-right: 14px; color: var(--green); }
.hero .cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero .badge { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px; border-radius: 999px; background: rgba(61, 255, 154, .1); color: var(--green); }
.hero .badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); animation: led 1.6s steps(2) infinite; }
.hero .cat { position: relative; justify-self: end; width: min(440px, 100%); }
.hero .cat img { border-radius: 24px; -webkit-mask-image: radial-gradient(ellipse 75% 80% at 55% 45%, #000 60%, transparent 100%); mask-image: radial-gradient(ellipse 75% 80% at 55% 45%, #000 60%, transparent 100%); }
.hero .cat .ekg { position: absolute; left: -30%; right: -5%; bottom: 12%; height: 70px; width: 135%; }
.hero .cat .ekg path { fill: none; stroke: var(--green); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 900; stroke-dashoffset: 900; animation: line 3.2s cubic-bezier(.5, 0, .2, 1) infinite; filter: drop-shadow(0 0 6px var(--green)); opacity: .85; }
@keyframes line { 60%, 100% { stroke-dashoffset: 0; } }
@media (max-width: 860px) { .hero .neon { grid-template-columns: 1fr; } .hero .cat { justify-self: center; width: min(320px, 90%); order: -1; } }

/* sections */
.sec { padding-top: clamp(70px, 9vw, 120px); }
.head { text-align: center; margin-bottom: 36px; }
.head h2 { margin: 10px 0 0; font: 800 clamp(30px, 4.4vw, 56px)/1.05 var(--display); letter-spacing: -.02em; }
.head p { margin: 12px auto 0; max-width: 560px; color: var(--ink-2); }
.head .mono { color: var(--cyan); }

/* one-button demo */
.demo { display: grid; grid-template-columns: .9fr 1.1fr; gap: 30px; align-items: center; padding: clamp(24px, 4vw, 50px); }
.power { position: relative; width: min(220px, 60vw); aspect-ratio: 1; justify-self: center; border-radius: 50%; border: 0; cursor: pointer; background: radial-gradient(circle at 50% 35%, #12333d, #071a21); box-shadow: 0 0 0 1px var(--line), 0 0 0 16px rgba(61, 255, 154, .04), 0 30px 60px rgba(0, 0, 0, .5); color: var(--ink-2); transition: box-shadow .6s, background .6s, color .4s; }
.power svg { width: 34%; height: 34%; }
.power .ring { position: absolute; inset: -12px; border-radius: 50%; border: 2px solid transparent; }
.power[data-state="connecting"] .ring { border-top-color: var(--green); animation: spin 1s linear infinite; }
.power[data-state="on"] { color: #03140b; background: radial-gradient(circle at 50% 35%, #b8ffd9, var(--green)); box-shadow: 0 0 0 1px var(--green), 0 0 0 16px rgba(61, 255, 154, .14), 0 0 90px rgba(61, 255, 154, .6); }
@keyframes spin { to { transform: rotate(360deg); } }
.demo h3 { margin: 0 0 10px; font: 800 clamp(26px, 3vw, 40px)/1.05 var(--display); }
.demo p { color: var(--ink-2); margin: 0 0 16px; }
.status { font-weight: 700; color: var(--ink-2); min-height: 26px; }
.on .status { color: var(--green); }
.demo .ekg2 { width: 100%; height: 70px; display: block; }
.demo .ekg2 path { fill: none; stroke: var(--ink-2); stroke-width: 2; opacity: .4; stroke-linecap: round; stroke-linejoin: round; }
.on .demo .ekg2 path { stroke: var(--green); opacity: 1; stroke-dasharray: 900; animation: draw 2.2s linear infinite; filter: drop-shadow(0 0 6px var(--green)); }
@keyframes draw { from { stroke-dashoffset: 900; } to { stroke-dashoffset: 0; } }
@media (max-width: 860px) { .demo { grid-template-columns: 1fr; text-align: center; } }

/* features */
.feats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feat { padding: 28px 24px; }
.feat .ic { width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; background: rgba(61, 255, 154, .1); color: var(--green); margin-bottom: 16px; }
.feat:nth-child(2) .ic { background: rgba(55, 214, 255, .1); color: var(--cyan); }
.feat:nth-child(3) .ic { background: rgba(139, 107, 255, .14); color: var(--violet); }
.feat .ic svg { width: 26px; height: 26px; }
.feat h3 { margin: 0 0 8px; font: 800 22px/1.15 var(--display); }
.feat p { margin: 0; color: var(--ink-2); font-size: 15.5px; }
@media (max-width: 860px) { .feats { grid-template-columns: 1fr; } }

/* network constellation */
.net { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: center; padding: clamp(24px, 4vw, 50px); overflow: hidden; }
.net svg { width: 100%; height: auto; }
.net .lnk { fill: none; stroke: rgba(55, 214, 255, .35); stroke-width: 1.5; stroke-dasharray: 4 6; animation: flow 6s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -100; } }
.net .nd { fill: var(--cyan); filter: drop-shadow(0 0 6px var(--cyan)); }
.net .nd.g { fill: var(--green); filter: drop-shadow(0 0 8px var(--green)); }
.net .nd.v { fill: var(--violet); filter: drop-shadow(0 0 6px var(--violet)); }
.net .halo { fill: none; stroke: var(--green); stroke-width: 1.5; opacity: .5; transform-box: fill-box; transform-origin: center; animation: halo 2.4s ease-out infinite; }
@keyframes halo { from { transform: scale(.6); opacity: .8; } to { transform: scale(2.2); opacity: 0; } }
.net h3 { margin: 0 0 12px; font: 800 clamp(26px, 3vw, 40px)/1.05 var(--display); }
.net p { color: var(--ink-2); margin: 0; }
@media (max-width: 860px) { .net { grid-template-columns: 1fr; } }

/* referral */
.ref { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; align-items: center; padding: clamp(24px, 4vw, 50px); overflow: hidden; }
.ref .plus { display: inline-block; padding: 12px 20px; border-radius: 999px; background: rgba(255, 255, 255, .08); box-shadow: inset 0 0 0 1px rgba(255,255,255,.15); font: 800 20px/1 var(--display); color: var(--green); }
.ref h2 { margin: 18px 0 10px; font: 800 clamp(28px, 4vw, 50px)/1.08 var(--display); letter-spacing: -.02em; }
.ref p { color: var(--ink-2); margin: 0 0 22px; }
.ref img { border-radius: 22px; -webkit-mask-image: radial-gradient(ellipse 80% 85% at 50% 45%, #000 60%, transparent 100%); mask-image: radial-gradient(ellipse 80% 85% at 50% 45%, #000 60%, transparent 100%); }
@media (max-width: 860px) { .ref { grid-template-columns: 1fr; text-align: center; } .ref img { max-width: 300px; margin: 0 auto; } }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: s; }
.step { padding: 26px 24px; counter-increment: s; }
.step::marker { content: none; }
.step b { display: grid; place-items: center; width: 46px; height: 46px; border-radius: 50%; background: var(--green); color: #03140b; font: 800 20px/1 var(--display); box-shadow: 0 0 20px rgba(61, 255, 154, .5); margin-bottom: 14px; }
.step h3 { margin: 0 0 6px; font: 800 21px/1.2 var(--display); }
.step p { margin: 0; color: var(--ink-2); font-size: 15.5px; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }

/* faq */
.faq { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq details { border-radius: 18px; padding: 2px 22px; background: rgba(10, 20, 34, .78); border: 1px solid var(--line); }
.faq details[open] { border-color: rgba(61, 255, 154, .5); box-shadow: 0 0 30px -10px rgba(61, 255, 154, .5); }
.faq summary { cursor: pointer; list-style: none; padding: 17px 34px 17px 0; font: 700 17px/1.35 var(--display); position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 12px; font: 800 26px/1 var(--display); color: var(--green); transition: transform .25s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 18px; color: var(--ink-2); }

/* final cta */
.final { text-align: center; padding: clamp(36px, 6vw, 70px) 24px; margin-top: clamp(70px, 9vw, 120px); }
.final .word { font-size: clamp(44px, 7vw, 90px); }
.final p { color: var(--ink-2); margin: 16px 0 26px; }

.foot { margin-top: 70px; border-top: 1px solid var(--line); padding: 26px 0 calc(34px + env(safe-area-inset-bottom)); color: var(--ink-2); font-size: 14px; }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
.foot nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.foot a { text-decoration: none; }
.foot a:hover { color: var(--green); }
.foot .note { flex-basis: 100%; font-size: 13px; opacity: .8; }

.rv { opacity: 0; transform: translateY(26px); transition: opacity .8s, transform .8s cubic-bezier(.2, .9, .2, 1); }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } .rv { opacity: 1; transform: none; } }