/* DvizhVPN — design system v2
   Livelier: warm paper, blue + amber accents, subtle motion. */

:root{
  --bg:#faf9f5;
  --bg-tint:#eef2fb;
  --surface:#ffffff;
  --ink:#10141c;
  --muted:#5c6470;
  --line:#e6e3d9;
  --line-strong:#d8d4c6;
  --accent:#2456e0;
  --accent-2:#4f7cff;
  --accent-ink:#ffffff;
  --accent-soft:#e9effc;
  --amber:#e8930c;
  --amber-soft:#fdf3e0;
  --signal:#0d8a5c;
  --signal-soft:#e2f4ec;
  --danger:#c2410c;
  --radius:14px;
  --shadow-sm:0 1px 2px rgba(16,20,28,.05);
  --shadow:0 2px 6px rgba(16,20,28,.06),0 16px 40px rgba(16,20,28,.08);
  --font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
html[data-theme="dark"]{
  --bg:#0f1218;
  --bg-tint:#141a26;
  --surface:#171c26;
  --ink:#eef1f6;
  --muted:#9aa4b2;
  --line:#262d3a;
  --line-strong:#303947;
  --accent:#5b8def;
  --accent-2:#7da2ff;
  --accent-ink:#0b1222;
  --accent-soft:#1a2540;
  --amber:#f5a623;
  --amber-soft:#2b2113;
  --signal:#2ec58a;
  --signal-soft:#10261d;
  --danger:#ef6a4c;
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);
  --shadow:0 2px 8px rgba(0,0,0,.45),0 18px 44px rgba(0,0,0,.35);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;
  transition:background .25s ease,color .25s ease;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    radial-gradient(720px 380px at 85% -6%, var(--bg-tint), transparent 62%),
    radial-gradient(620px 320px at 0% 8%, var(--bg-tint), transparent 60%);
}
img,svg{display:block;max-width:100%}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
.container{max-width:1120px;margin:0 auto;padding:0 20px}

h1,h2,h3{line-height:1.12;letter-spacing:-.02em;margin:0 0 .5em;font-weight:800}
h1{font-size:clamp(2.3rem,5.4vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.3rem)}
h3{font-size:1.12rem}
mark{
  background:linear-gradient(transparent 58%, var(--amber-soft) 58%);
  color:inherit;padding:0 2px;
}
.lede{font-size:1.12rem;color:var(--muted);max-width:62ch}
.mono{font-family:var(--mono);font-size:.92em}
.small{font-size:.88rem;color:var(--muted)}
.section{padding:76px 0}
.section-head{max-width:70ch;margin-bottom:40px}
.section-head h2{margin-bottom:.3em}
.section-head p{color:var(--muted);font-size:1.02rem}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.08rem;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand img{width:30px;height:30px;border-radius:8px;box-shadow:var(--shadow-sm)}
.nav-links{display:none;gap:4px;margin:0 auto}
.nav-links a{color:var(--muted);font-size:.93rem;font-weight:600;padding:8px 12px;border-radius:9px}
.nav-links a:hover{color:var(--ink);text-decoration:none;background:var(--accent-soft)}
.nav-links a[aria-current="page"]{color:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.lang-switch{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;background:var(--surface)}
.lang-switch button{border:0;background:transparent;color:var(--muted);font-size:.8rem;font-weight:700;padding:7px 11px;cursor:pointer}
.lang-switch button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.icon-btn{width:39px;height:39px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);cursor:pointer;transition:transform .12s ease}
.icon-btn:hover{transform:translateY(-1px)}
.burger{display:grid;place-items:center}
@media(min-width:860px){.nav-links{display:flex}.burger{display:none}}
.mobile-menu{display:none;border-top:1px solid var(--line);padding:10px 0 18px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:11px 4px;color:var(--ink);font-weight:600}

/* buttons */
.btn{
  display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;
  font:700 .95rem/1 var(--font);padding:13px 22px;border-radius:11px;
  transition:transform .1s ease,box-shadow .15s ease,filter .15s ease;
}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:var(--accent-ink);box-shadow:0 6px 18px rgba(36,86,224,.28)}
.btn-primary:hover{filter:brightness(1.06);box-shadow:0 8px 24px rgba(36,86,224,.34)}
.btn-signal{background:linear-gradient(135deg,var(--signal),#17a673);color:#fff;box-shadow:0 6px 18px rgba(13,138,92,.26)}
.btn-signal:hover{filter:brightness(1.06)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line-strong)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-lg{padding:16px 28px;font-size:1.02rem}
.btn-sm{padding:9px 15px;font-size:.86rem}

/* hero */
.hero{padding:92px 0 72px;display:grid;gap:46px}
.hero h1{max-width:16ch}
.hero .lede{max-width:52ch;margin-bottom:30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.hero-note{font-size:.86rem;color:var(--muted);margin-top:16px}
.hero-visual{
  border:1px solid var(--line);border-radius:16px;background:var(--surface);
  box-shadow:var(--shadow);overflow:hidden;font-family:var(--mono);font-size:.83rem;
  color:var(--muted);transform:rotate(1deg);
  animation:heroFloat 7s ease-in-out infinite;
}
@keyframes heroFloat{
  0%,100%{transform:rotate(1deg) translateY(0)}
  50%{transform:rotate(.5deg) translateY(-8px)}
}
.hero-visual .chrome{
  display:flex;align-items:center;gap:7px;padding:10px 14px;
  background:var(--ink);border-bottom:1px solid var(--line);
}
.hero-visual .chrome i{width:10px;height:10px;border-radius:50%;display:block}
.hero-visual .chrome i:nth-child(1){background:#ef6a4c}
.hero-visual .chrome i:nth-child(2){background:#f5a623}
.hero-visual .chrome i:nth-child(3){background:#2ec58a}
.hero-visual .chrome span{margin-left:8px;color:var(--muted);font-size:.78rem}
.hero-visual .body{padding:16px 18px;overflow-x:auto;min-height:212px}
.term-line{padding:6px 0;border-bottom:1px dashed var(--line);white-space:pre}
.term-line:last-child{border-bottom:0}
.term-line.t-ok{color:var(--signal);font-weight:600}
.term-line.t-ping{color:var(--amber);font-weight:600}
.term-cursor{display:inline-block;width:8px;height:1.05em;vertical-align:-0.18em;background:var(--accent-2);margin-left:2px;animation:cursorBlink 1s steps(2,start) infinite}
@keyframes cursorBlink{to{visibility:hidden}}
.hero-visual .row{display:flex;justify-content:space-between;gap:18px;padding:8px 0;border-bottom:1px dashed var(--line)}
.hero-visual .row:last-child{border-bottom:0}
.hero-visual .ok{color:var(--signal);font-weight:600}
.hero-visual .ping{color:var(--amber);font-weight:600}
@media(min-width:900px){.hero{grid-template-columns:1.08fr .92fr;align-items:center;padding:116px 0 92px}}

/* stats */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface)}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr)}
.stat{padding:28px 6px}
.stat b{display:block;font-size:1.9rem;letter-spacing:-.02em;background:linear-gradient(120deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{color:var(--muted);font-size:.9rem}
@media(min-width:760px){.stats-grid{grid-template-columns:repeat(4,1fr)}.stat{padding:30px 24px;border-left:1px solid var(--line)}.stat:first-child{border-left:0}}

/* features */
.feat-list{border-top:2px solid var(--ink)}
.feat{display:grid;gap:10px 28px;padding:30px 0;border-bottom:1px solid var(--line);transition:background .2s ease}
.feat:hover{background:var(--accent-soft)}
.feat .num{
  font-family:var(--mono);font-weight:700;color:var(--accent);font-size:.9rem;
  background:var(--accent-soft);width:34px;height:34px;display:grid;place-items:center;border-radius:9px;
}
.feat h3{margin:0}
.feat p{color:var(--muted);margin:0;max-width:66ch}
@media(min-width:760px){.feat{grid-template-columns:44px 1fr 1.25fr;padding:30px 8px}}

/* steps */
.steps{display:grid;gap:36px;counter-reset:step}
.step{position:relative;padding-left:60px}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;left:0;top:0;font-family:var(--mono);font-weight:700;font-size:1.1rem;
  color:var(--amber);background:var(--amber-soft);width:40px;height:40px;
  display:grid;place-items:center;border-radius:11px;
}
.step h3{margin-bottom:.3em}
.step p{color:var(--muted);margin:0}
@media(min-width:760px){.steps{grid-template-columns:repeat(3,1fr);gap:28px}}

/* servers */
.servers{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--surface);box-shadow:var(--shadow)}
.server-row{display:flex;align-items:center;gap:14px;padding:16px 18px;border-bottom:1px solid var(--line);transition:background .15s ease}
.server-row:hover{background:var(--accent-soft)}
.server-row:last-child{border-bottom:0}
.server-flag{font-size:1.25rem;width:28px;text-align:center}
.server-name{font-weight:700;min-width:150px}
.server-bar{flex:1;height:6px;background:var(--line);border-radius:3px;overflow:hidden}
.server-bar i{display:block;height:100%;border-radius:3px}
.bar-good{background:linear-gradient(90deg,var(--signal),#3fd39d)}
.bar-mid{background:linear-gradient(90deg,var(--amber),#f6b23c)}
.bar-slow{background:var(--line-strong)}
.bar-bad{background:linear-gradient(90deg,var(--danger),#f08c60)}
.ping-bad{color:var(--danger)}
.server-bar i{transition:width .7s ease}
.server-ping{font-family:var(--mono);font-size:.85rem;font-weight:700;min-width:66px;text-align:right}
.ping-fast{color:var(--signal)}
.ping-mid{color:var(--amber)}
.ping-slow{color:var(--muted)}
.server-live{display:inline-flex;align-items:center;gap:7px;font-size:.84rem;font-weight:700;color:var(--signal)}

/* pricing */
.pricing{display:grid;gap:18px;grid-template-columns:1fr}
.plan{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:18px;padding:28px 26px;box-shadow:var(--shadow-sm);
  transition:transform .16s ease,box-shadow .16s ease;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.plan-popular{border:2px solid var(--accent);background:linear-gradient(180deg,var(--accent-soft),var(--surface) 42%)}
.plan-tag{
  position:absolute;top:-13px;left:24px;background:linear-gradient(135deg,var(--amber),#f6b23c);
  color:#241a05;font-size:.75rem;font-weight:800;padding:5px 14px;border-radius:999px;
  box-shadow:0 4px 12px rgba(232,147,12,.3);
}
.plan h3{margin:0 0 6px;font-size:1rem;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-weight:700}
.plan .price{font-size:2.3rem;font-weight:800;letter-spacing:-.02em}
.plan .price small{font-size:.9rem;color:var(--muted);font-weight:600}
.plan ul{list-style:none;margin:18px 0 24px;padding:0;color:var(--muted);font-size:.94rem}
.plan li{padding:6px 0 6px 26px;position:relative}
.plan li::before{
  content:"";position:absolute;left:0;top:14px;width:15px;height:2px;border-radius:2px;
  background:var(--signal);
}
.plan .btn{width:100%;justify-content:center}
@media(min-width:860px){.pricing{grid-template-columns:repeat(4,1fr)}}

/* reviews */
.reviews{display:grid;gap:18px}
.review{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:26px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .16s ease;
}
.review:hover{transform:translateY(-3px)}
.review::before{content:"“";font-size:2.6rem;font-weight:800;line-height:1;color:var(--accent-2);display:block;margin-bottom:8px}
.review p{margin:0 0 14px}
.review cite{font-style:normal;font-size:.88rem;font-weight:700;color:var(--muted)}
.review.short{font-size:.95rem}
@media(min-width:760px){.reviews{grid-template-columns:1.2fr 1fr 1fr}}

/* faq */
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;
  background:none;border:0;padding:22px 0;text-align:left;font:700 1.02rem var(--font);
  color:var(--ink);cursor:pointer;
}
.faq-q:hover{color:var(--accent)}
.faq-q::after{
  content:"+";font-size:1.4rem;color:var(--accent);transition:transform .18s ease;
}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 0 22px;margin:0;color:var(--muted);max-width:70ch}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;background:#10141c;color:#fff;border-radius:20px;
  padding:56px 30px;display:grid;gap:22px;justify-items:start;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 300px at 88% 10%, rgba(91,141,239,.35), transparent 62%),
    radial-gradient(420px 260px at 6% 100%, rgba(245,166,35,.22), transparent 60%);
}
.cta-band > *{position:relative}
.cta-band h2{color:#fff}
.cta-band p{color:#aeb7c6;max-width:52ch}
.cta-band .btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff}
html[data-theme="dark"] .cta-band{border:1px solid var(--line-strong)}
@media(min-width:760px){.cta-band{grid-template-columns:1.4fr 1fr;align-items:center;padding:64px 48px}}

/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:96px;padding:50px 0 60px;background:var(--surface)}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
.footer-grid nav{display:flex;flex-direction:column;gap:9px}
.footer-grid h4{margin:0 0 12px;font-size:.82rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.footer-grid a{color:var(--muted);font-size:.92rem}
.footer-grid a:hover{color:var(--accent)}
@media(min-width:760px){.footer-grid{grid-template-columns:1.4fr repeat(3,1fr)}}
.footer-bottom{border-top:1px solid var(--line);margin-top:38px;padding-top:22px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:.84rem;color:var(--muted)}

/* blog */
.post-list{display:grid;gap:22px}
.post-card{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:18px;padding:28px;box-shadow:var(--shadow-sm);color:var(--ink);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.post-card:hover{text-decoration:none;transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--accent-2)}
.post-card time{font-family:var(--mono);font-size:.8rem;color:var(--amber);font-weight:600}
.post-card h3{margin:.45em 0 .35em}
.post-card p{color:var(--muted);margin:0}
.article{max-width:72ch}
.article h2{margin-top:1.7em;font-size:1.4rem}
.article p{color:var(--muted)}

/* legal */
.legal{max-width:72ch}
.legal h2{margin-top:1.7em;font-size:1.32rem}
.legal p,.legal li{color:var(--muted)}
.legal-note{background:var(--amber-soft);color:var(--amber);border:1px solid var(--amber);border-radius:10px;padding:10px 15px;font-size:.88rem;font-weight:600;margin-bottom:28px;display:inline-block}

/* forms */
.form{max-width:520px;display:grid;gap:16px}
.field label{display:block;font-size:.9rem;font-weight:700;margin-bottom:6px}
.field input,.field textarea{width:100%;border:1px solid var(--line-strong);border-radius:11px;padding:12px 14px;font:inherit;background:var(--surface);color:var(--ink)}
.field input:focus,.field textarea:focus{border-color:var(--accent);outline:0;box-shadow:0 0 0 3px var(--accent-soft)}
.form-error{color:var(--danger);font-size:.88rem;font-weight:600;display:none}
.hp{position:absolute;left:-9999px;opacity:0}

/* review modal */
.review-actions{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:30px}
.review-actions .small{margin:0}
.modal{position:fixed;inset:0;z-index:200;display:grid;place-items:center;padding:20px}
.modal[hidden]{display:none}
.modal-backdrop{position:absolute;inset:0;background:rgba(10,13,20,.55);backdrop-filter:blur(3px)}
.modal-card{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:18px;box-shadow:var(--shadow);padding:30px 26px;width:100%;max-width:480px;
  max-height:90vh;overflow-y:auto;
  animation:modalIn .22s ease;
}
@keyframes modalIn{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}
.modal-close{position:absolute;top:14px;right:14px}
.modal-card h3{margin-bottom:.3em;padding-right:44px}
.modal-card .form{margin-top:14px}

/* tables */
.dl-table{width:100%;border-collapse:collapse;font-size:.94rem}
.dl-table th,.dl-table td{text-align:left;padding:13px 10px;border-bottom:1px solid var(--line)}
.dl-table th{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}
.dl-table td:last-child{white-space:nowrap}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:100}
.skip-link:focus{left:0}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
}

/* scroll reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
}