/* ============================================================
   Kuaiya VPN — Design Tokens
   Palette:  --navy-950 (bg) / --navy-900 (surface) / --navy-800 (surface-2)
             --amber (primary accent, "duck-bill") / --teal (secondary, "water")
   Type:     Display = Fraunces (warm serif, restrained use)
             Body    = Inter
             Utility = JetBrains Mono (prices, technical data)
   Signature: concentric "ripple" rings — used once in hero, echoed subtly
              in card hover states and section dividers.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --navy-950:#0B1220;
  --navy-900:#111A2E;
  --navy-800:#182238;
  --navy-700:#233047;
  --line:#2A3752;
  --amber:#F2A93B;
  --amber-soft:rgba(242,169,59,.14);
  --teal:#4FD1C5;
  --text:#EEF1F6;
  --text-muted:#96A1B8;
  --text-faint:#5E6A85;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow:0 20px 60px -20px rgba(0,0,0,.55);
  --maxw:1160px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--navy-950);
  color:var(--text);
  font-family:'Inter',system-ui,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
.mono{font-family:'JetBrains Mono',monospace;}
.display{font-family:'Fraunces',serif;}

/* subtle noise / ripple background wash */
.bg-ripples{
  position:absolute;inset:0;overflow:hidden;pointer-events:none;
  opacity:.5;
}

/* ---------- Nav ---------- */
header.site-nav{
  position:sticky;top:0;z-index:50;
  background:rgba(11,18,32,.82);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-row{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:600;font-size:19px;letter-spacing:.01em;}
.logo .word{font-family:'Fraunces',serif;font-weight:600;}
.logo .word b{color:var(--amber);font-weight:600;}
.logo small{display:block;font-family:'JetBrains Mono',monospace;font-size:10px;color:var(--text-faint);letter-spacing:.14em;margin-top:1px;}
nav.links{display:flex;gap:34px;align-items:center;}
nav.links a{font-size:14.5px;color:var(--text-muted);transition:color .15s;}
nav.links a:hover{color:var(--text);}
.nav-cta{
  background:var(--amber);color:#1A1206;
  padding:10px 20px;border-radius:999px;font-weight:600;font-size:14px;
  transition:transform .15s, box-shadow .15s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px -8px rgba(242,169,59,.5);}
.nav-toggle{display:none;background:none;border:0;color:var(--text);font-size:24px;cursor:pointer;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:96px 0 84px;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero .ripple-mark{
  position:absolute;right:-120px;top:-140px;width:560px;height:560px;
  opacity:.35;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.16em;
  color:var(--teal);text-transform:uppercase;margin-bottom:22px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px rgba(79,209,197,.18);}
.hero h1{
  font-family:'Fraunces',serif;font-weight:500;
  font-size:clamp(38px,5.2vw,64px);
  line-height:1.06;letter-spacing:-.01em;
  max-width:760px;margin:0 0 22px;
}
.hero h1 em{font-style:italic;color:var(--amber);}
.hero p.lead{
  font-size:18px;color:var(--text-muted);max-width:560px;margin:0 0 40px;
}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 24px;border-radius:12px;font-weight:600;font-size:14.5px;
  transition:transform .15s, box-shadow .15s, background .15s;
}
.btn-primary{background:var(--amber);color:#1A1206;}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px -10px rgba(242,169,59,.55);}
.btn-ghost{background:var(--navy-800);border:1px solid var(--line);color:var(--text);}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber);}
.hero-stats{
  display:flex;gap:44px;margin-top:64px;flex-wrap:wrap;
}
.hero-stats div b{
  display:block;font-family:'Fraunces',serif;font-size:30px;font-weight:500;color:var(--text);
}
.hero-stats div span{font-size:13px;color:var(--text-faint);}

/* ---------- Section shell ---------- */
section{padding:88px 0;}
.section-head{max-width:620px;margin:0 0 48px;}
.section-head .eyebrow{margin-bottom:14px;}
.section-head h2{
  font-family:'Fraunces',serif;font-weight:500;font-size:clamp(28px,3.4vw,40px);
  margin:0 0 14px;letter-spacing:-.01em;
}
.section-head p{color:var(--text-muted);font-size:16px;margin:0;}

/* ---------- Feature grid ---------- */
.feature-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;
}
.feature-card{
  background:var(--navy-900);padding:36px 32px;position:relative;
  transition:background .2s;
}
.feature-card:hover{background:var(--navy-800);}
.feature-card .icon{
  width:42px;height:42px;border-radius:10px;background:var(--amber-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:22px;
  color:var(--amber);
}
.feature-card h3{font-size:17px;font-weight:600;margin:0 0 10px;}
.feature-card p{font-size:14.5px;color:var(--text-muted);margin:0;line-height:1.65;}

/* ---------- Pricing ---------- */
.tabs{display:inline-flex;background:var(--navy-800);border:1px solid var(--line);border-radius:999px;padding:4px;margin-bottom:40px;}
.tab-btn{
  padding:10px 26px;border-radius:999px;font-weight:600;font-size:14px;
  color:var(--text-muted);cursor:pointer;border:0;background:transparent;
  font-family:inherit;transition:all .18s;
}
.tab-btn.active{background:var(--amber);color:#1A1206;}
.plan-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
.plan-panel{display:none;}
.plan-panel.active{display:block;}
.plan-card{
  position:relative;background:var(--navy-900);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:26px 22px;text-align:center;
  transition:transform .18s, border-color .18s, box-shadow .18s;
}
.plan-card:hover{transform:translateY(-4px);border-color:var(--amber);box-shadow:var(--shadow);}
.plan-card.featured{border-color:var(--amber);background:linear-gradient(180deg,rgba(242,169,59,.08),transparent 60%);}
.plan-badge{
  position:absolute;top:-11px;left:50%;transform:translateX(-50%);
  background:var(--amber);color:#1A1206;font-size:11px;font-weight:700;
  padding:4px 12px;border-radius:999px;white-space:nowrap;
  font-family:'JetBrains Mono',monospace;letter-spacing:.02em;
}
.plan-duration{font-size:14px;color:var(--text-muted);margin:14px 0 6px;font-weight:500;}
.plan-price{font-family:'Fraunces',serif;font-size:34px;font-weight:500;}
.plan-price sup{font-size:16px;color:var(--amber);margin-right:2px;}
.plan-strike{font-family:'JetBrains Mono',monospace;font-size:13px;color:var(--text-faint);text-decoration:line-through;margin-top:4px;}
.plan-note{margin-top:10px;font-size:12px;color:var(--teal);font-family:'JetBrains Mono',monospace;}
.pay-methods{
  display:flex;gap:14px;align-items:center;margin-top:44px;flex-wrap:wrap;
}
.pay-methods span.label{font-size:13px;color:var(--text-faint);margin-right:6px;}
.pay-chip{
  display:inline-flex;align-items:center;gap:8px;background:var(--navy-800);
  border:1px solid var(--line);padding:9px 16px;border-radius:10px;font-size:13.5px;font-weight:500;
}
.pay-chip .dot{width:8px;height:8px;border-radius:50%;}
.pay-chip.card .dot{background:var(--teal);}
.pay-chip.paypal .dot{background:#00457C;}

/* ---------- Download ---------- */
.download-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.dl-card{
  background:var(--navy-900);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:30px 24px;transition:border-color .18s, transform .18s;
}
.dl-card:hover{border-color:var(--amber);transform:translateY(-3px);}
.dl-card .icon{width:36px;height:36px;color:var(--amber);margin-bottom:20px;}
.dl-card h3{font-size:16px;margin:0 0 6px;font-weight:600;}
.dl-card p{font-size:13px;color:var(--text-faint);margin:0 0 20px;}
.dl-btn{
  display:inline-flex;align-items:center;justify-content:center;width:100%;
  background:var(--navy-800);border:1px solid var(--line);padding:11px;border-radius:10px;
  font-size:13.5px;font-weight:600;transition:all .15s;
}
.dl-btn:hover{background:var(--amber);color:#1A1206;border-color:var(--amber);}

/* ---------- Trust / entity strip ---------- */
.entity-strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--navy-900);
}
.entity-row{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px;
  padding:28px 0;font-size:13.5px;color:var(--text-muted);
}
.entity-row b{color:var(--text);font-weight:600;}
.entity-row .sep{color:var(--text-faint);margin:0 10px;}

/* ---------- Footer ---------- */
footer{padding:64px 0 40px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:56px;}
.footer-col h4{font-size:13px;text-transform:uppercase;letter-spacing:.1em;color:var(--text-faint);margin:0 0 18px;font-weight:600;}
.footer-col a, .footer-col p{display:block;font-size:14px;color:var(--text-muted);margin:0 0 12px;}
.footer-col a:hover{color:var(--amber);}
.footer-bottom{
  border-top:1px solid var(--line);padding-top:28px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:12.5px;color:var(--text-faint);
}

/* ---------- Legal pages ---------- */
.legal-hero{padding:72px 0 40px;border-bottom:1px solid var(--line);}
.legal-hero .eyebrow{margin-bottom:16px;}
.legal-hero h1{font-family:'Fraunces',serif;font-weight:500;font-size:clamp(32px,4vw,46px);margin:0 0 14px;}
.legal-hero p{color:var(--text-faint);font-size:14px;font-family:'JetBrains Mono',monospace;}
.legal-body{max-width:760px;margin:0 auto;padding:64px 28px 100px;}
.legal-body h2{font-family:'Fraunces',serif;font-weight:500;font-size:22px;margin:44px 0 16px;}
.legal-body h2:first-child{margin-top:0;}
.legal-body p{color:var(--text-muted);font-size:15.5px;line-height:1.75;margin:0 0 16px;}
.legal-body ul{color:var(--text-muted);font-size:15.5px;line-height:1.75;padding-left:20px;}
.legal-body li{margin-bottom:8px;}
.legal-body strong{color:var(--text);}
.legal-toc{
  background:var(--navy-900);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:24px 26px;margin-bottom:12px;
}
.legal-toc h4{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--text-faint);margin:0 0 14px;}
.legal-toc ol{margin:0;padding-left:18px;color:var(--text-muted);font-size:14px;line-height:2;}
.legal-toc a:hover{color:var(--amber);}

/* ---------- Responsive ---------- */
@media (max-width:900px){
  .feature-grid{grid-template-columns:repeat(2,1fr);}
  .plan-grid{grid-template-columns:repeat(2,1fr);}
  .download-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  nav.links{display:none;}
  .nav-toggle{display:block;}
}
@media (max-width:560px){
  .feature-grid{grid-template-columns:1fr;}
  .plan-grid{grid-template-columns:1fr 1fr;}
  .download-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .hero{padding:64px 0 56px;}
  section{padding:64px 0;}
}

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