/* ===================================================================
   ZoogVPN Review — "Verified Ledger" design system
   Palette: warm paper + ink navy + verified green + amber seal accent
=================================================================== */

:root{
  --ink:#14181F;
  --paper:#F7F4EC;
  --paper-alt:#EFEADD;
  --navy:#0E1E36;
  --navy-2:#152B4A;
  --verified:#1F7A5C;
  --verified-dark:#155E45;
  --amber:#D99A3D;
  --amber-dark:#B57B25;
  --slate:#5B6472;
  --line:#DCD5C2;
  --line-dark:#2A3B57;
  --white:#FFFFFF;
  --font-display:'Fraunces', Georgia, serif;
  --font-body:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:'IBM Plex Mono', 'SFMono-Regular', monospace;
  --radius:10px;
  --container:1120px;
  --shadow-soft: 0 2px 20px rgba(14,30,54,0.08);
  --shadow-card: 0 1px 3px rgba(14,30,54,0.06), 0 8px 24px rgba(14,30,54,0.07);
}

/* CJK-friendly font stacks */
:root[lang="zh-CN"], :root[lang="zh"]{
  --font-display:'Fraunces', "Noto Serif SC", "PingFang SC", "Microsoft YaHei", serif;
  --font-body:'Inter', "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
}
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.15;
  margin:0 0 0.5em;
  letter-spacing:-0.01em;
}
p{margin:0 0 1em;}
.container{max-width:var(--container); margin:0 auto; padding:0 24px;}
:focus-visible{outline:3px solid var(--amber); outline-offset:2px;}

/* ---------------- Header / nav ---------------- */
.site-header{
  background:var(--navy);
  color:var(--white);
  position:sticky; top:0; z-index:50;
  border-bottom:1px solid var(--line-dark);
}
.site-header .container{
  display:flex; align-items:center; justify-content:space-between;
  height:72px;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-family:var(--font-display); font-weight:700; font-size:1.15rem;
  color:var(--white); text-decoration:none;
}
.brand .seal-mini{width:30px;height:30px;flex:none;}
.brand-logo-chip{
  background:var(--white); border-radius:7px; padding:5px 10px; display:inline-flex; align-items:center;
  flex:none; box-shadow:0 1px 2px rgba(0,0,0,0.15);
}
.brand-logo-chip img{height:18px; width:auto; display:block;}
.brand small{display:block; font-family:var(--font-body); font-weight:400; font-size:0.62rem; letter-spacing:0.08em; text-transform:uppercase; color:#9FB3CE;}
nav.main-nav{display:flex; align-items:center; gap:28px;}
nav.main-nav a{
  color:#D7E1EE; text-decoration:none; font-size:0.94rem; font-weight:500;
  padding:6px 2px; border-bottom:2px solid transparent;
}
nav.main-nav a:hover, nav.main-nav a[aria-current="page"]{color:var(--white); border-bottom-color:var(--amber);}
.header-actions{display:flex; align-items:center; gap:14px;}
.lang-switch{position:relative;}
.lang-switch summary{
  list-style:none; cursor:pointer; display:flex; align-items:center; gap:6px;
  color:#D7E1EE; font-size:0.88rem; padding:8px 12px; border:1px solid var(--line-dark); border-radius:8px;
}
.lang-switch summary::-webkit-details-marker{display:none;}
.lang-switch[open] summary{background:var(--navy-2);}
.lang-menu{
  position:absolute; right:0; top:calc(100% + 6px); background:var(--white); color:var(--ink);
  border-radius:8px; box-shadow:var(--shadow-card); min-width:170px; overflow:hidden; z-index:60;
}
.lang-menu a{display:block; padding:10px 14px; text-decoration:none; color:var(--ink); font-size:0.9rem;}
.lang-menu a:hover{background:var(--paper-alt);}
.lang-menu a[aria-current="true"]{color:var(--verified); font-weight:600;}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family:var(--font-body); font-weight:600; font-size:0.92rem;
  padding:11px 20px; border-radius:8px; text-decoration:none; border:1px solid transparent;
  cursor:pointer; transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{background:var(--verified); color:var(--white); box-shadow:var(--shadow-soft);}
.btn-primary:hover{background:var(--verified-dark);}
.btn-outline{background:transparent; border-color:var(--line-dark); color:var(--white);}
.btn-outline:hover{background:var(--navy-2);}
.btn-ghost{background:transparent; border-color:var(--line); color:var(--ink);}
.btn-ghost:hover{background:var(--paper-alt);}
.nav-toggle{display:none; background:none; border:none; color:var(--white); font-size:1.5rem; cursor:pointer;}

/* ---------------- Trust bar ---------------- */
.trustbar{
  background:var(--paper-alt); border-bottom:1px solid var(--line);
  font-family:var(--font-mono); font-size:0.78rem; letter-spacing:0.02em; color:var(--slate);
  text-align:center; padding:9px 16px;
}

/* ---------------- Hero ---------------- */
.hero{padding:64px 0 56px; position:relative; overflow:hidden;}
.hero .container{display:grid; grid-template-columns:1.15fr 0.85fr; gap:48px; align-items:center;}
.eyebrow{
  font-family:var(--font-mono); font-size:0.78rem; text-transform:uppercase; letter-spacing:0.1em;
  color:var(--verified-dark); margin-bottom:14px; display:flex; align-items:center; gap:8px;
}
.eyebrow::before{content:''; width:8px; height:8px; border-radius:50%; background:var(--verified); display:inline-block;}
.hero h1{font-size:clamp(2.1rem, 4.4vw, 3.3rem); margin-bottom:0.4em;}
.hero .lede{font-size:1.15rem; color:var(--slate); max-width:56ch; margin-bottom:1.6em;}
.hero-ctas{display:flex; gap:14px; flex-wrap:wrap;}
.hero-visual{display:flex; justify-content:center; align-items:center;}
.seal{position:relative; width:260px; height:260px;}

/* stat grid */
.stat-grid{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line);
  border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; margin:40px 0;
}
.stat-cell{background:var(--paper); padding:24px 18px; text-align:center;}
.stat-cell .val{font-family:var(--font-display); font-size:1.9rem; font-weight:700; color:var(--navy);}
.stat-cell .lbl{font-size:0.82rem; color:var(--slate); margin-top:4px;}

/* ---------------- Section basics ---------------- */
section{padding:56px 0;}
.section-tight{padding:36px 0;}
.section-head{max-width:70ch; margin-bottom:32px;}
.section-head h2{font-size:clamp(1.5rem,3vw,2.1rem);}
.section-head .sub{color:var(--slate); font-size:1.02rem;}
.bg-alt{background:var(--paper-alt); border-top:1px solid var(--line); border-bottom:1px solid var(--line);}
.bg-navy{background:var(--navy); color:var(--white);}
.bg-navy h2, .bg-navy h3{color:var(--white);}

/* verdict callout */
.verdict-box{
  background:var(--white); border:1px solid var(--line); border-left:6px solid var(--verified);
  border-radius:var(--radius); padding:28px 30px; box-shadow:var(--shadow-card); position:relative;
}
.verdict-box .stamp-tag{
  display:inline-flex; align-items:center; gap:6px; font-family:var(--font-mono); font-size:0.72rem;
  text-transform:uppercase; letter-spacing:0.08em; color:var(--verified-dark); background:#E7F3EC;
  padding:4px 10px; border-radius:20px; margin-bottom:12px;
}

/* ---------------- Review carousel ---------------- */
.carousel-wrap{position:relative;}
.carousel{
  display:flex; gap:18px; overflow-x:auto; scroll-snap-type:x mandatory; padding:6px 6px 22px;
  -webkit-overflow-scrolling:touch;
}
.carousel::-webkit-scrollbar{height:8px;}
.carousel::-webkit-scrollbar-thumb{background:var(--line); border-radius:8px;}
.review-card{
  scroll-snap-align:start; flex:0 0 320px; background:var(--white); border:1px solid var(--line);
  border-radius:var(--radius); padding:22px; box-shadow:var(--shadow-card); display:flex; flex-direction:column; gap:12px;
}
.review-card .stars{color:var(--amber-dark); font-size:1rem; letter-spacing:2px;}
.review-card .quote{font-size:0.97rem; flex:1;}
.review-card .meta{
  display:flex; align-items:center; justify-content:space-between; font-family:var(--font-mono);
  font-size:0.74rem; color:var(--slate); border-top:1px dashed var(--line); padding-top:10px;
}
.platform-pill{
  display:inline-flex; align-items:center; gap:5px; padding:3px 9px; border-radius:20px;
  background:var(--paper-alt); font-family:var(--font-mono); font-size:0.72rem; color:var(--navy);
}
.translated-tag{font-style:italic; color:var(--slate); font-size:0.72rem;}
.carousel-btn{
  position:absolute; top:50%; transform:translateY(-50%); background:var(--white); border:1px solid var(--line);
  width:40px; height:40px; border-radius:50%; cursor:pointer; box-shadow:var(--shadow-card); font-size:1.1rem;
  display:flex; align-items:center; justify-content:center; z-index:5;
}
.carousel-btn.prev{left:-8px;} .carousel-btn.next{right:-8px;}
@media (max-width:720px){.carousel-btn{display:none;}}

/* ---------------- Quick FAQ accordion ---------------- */
.accordion-item{border-bottom:1px solid var(--line);}
.accordion-item summary{
  list-style:none; cursor:pointer; padding:18px 4px; display:flex; align-items:center; justify-content:space-between;
  font-weight:600; font-size:1.02rem; gap:16px;
}
.accordion-item summary::-webkit-details-marker{display:none;}
.accordion-item summary .plus{font-family:var(--font-mono); font-size:1.3rem; color:var(--verified); flex:none; transition:transform .18s ease;}
.accordion-item[open] summary .plus{transform:rotate(45deg);}
.accordion-item .body{padding:0 4px 20px; color:var(--slate); max-width:75ch;}
.faq-cat{margin-bottom:36px;}
.faq-cat h3{font-size:1.1rem; color:var(--navy); margin-bottom:6px;}

/* ---------------- Tables ---------------- */
.table-wrap{overflow-x:auto; border:1px solid var(--line); border-radius:var(--radius); background:var(--white); box-shadow:var(--shadow-card);}
table.cmp{width:100%; border-collapse:collapse; font-size:0.94rem; min-width:600px;}
table.cmp th, table.cmp td{padding:14px 18px; text-align:left; border-bottom:1px solid var(--line);}
table.cmp thead th{
  font-family:var(--font-mono); font-size:0.74rem; text-transform:uppercase; letter-spacing:0.06em;
  color:var(--slate); background:var(--paper-alt); border-bottom:2px solid var(--line);
}
table.cmp tbody tr:last-child td{border-bottom:none;}
table.cmp td.zoog-col, table.cmp th.zoog-col{background:#F1F8F4; font-weight:600;}
.check-yes{color:var(--verified-dark); font-weight:700;}
.check-no{color:#B0463F;}
.zoog-flag{
  display:inline-block; font-family:var(--font-mono); font-size:0.68rem; text-transform:uppercase;
  background:var(--verified); color:var(--white); padding:2px 8px; border-radius:12px; margin-left:8px; letter-spacing:0.05em;
}

/* ---------------- vs cards (hub) ---------------- */
.vs-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:20px;}
.vs-card{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius); padding:24px;
  box-shadow:var(--shadow-card); text-decoration:none; color:var(--ink); display:flex; flex-direction:column; gap:10px;
  transition:transform .15s ease, box-shadow .15s ease;
}
.vs-card:hover{transform:translateY(-3px); box-shadow:0 6px 28px rgba(14,30,54,0.14);}
.vs-card .vs-title{font-family:var(--font-display); font-size:1.2rem; font-weight:600;}
.vs-card .vs-price{font-family:var(--font-mono); color:var(--slate); font-size:0.86rem;}
.vs-card .vs-arrow{margin-top:auto; color:var(--verified-dark); font-weight:600; font-size:0.9rem;}

/* why cards on vs pages */
.why-grid{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
@media (max-width:760px){.why-grid{grid-template-columns:1fr;}}
.why-card{border-radius:var(--radius); padding:24px; border:1px solid var(--line);}
.why-card.zoog{background:#F1F8F4; border-color:#CFE7D9;}
.why-card.other{background:var(--white);}
.why-card h3{font-size:1.05rem; margin-bottom:10px;}

/* platform tabs (reviews directory) */
.tabs{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:28px;}
.tab-btn{
  font-family:var(--font-mono); font-size:0.82rem; padding:9px 16px; border-radius:20px; border:1px solid var(--line);
  background:var(--white); cursor:pointer; color:var(--ink);
}
.tab-btn[aria-selected="true"]{background:var(--navy); border-color:var(--navy); color:var(--white);}
.review-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:18px;}
.review-grid .review-card{flex:none;}

/* final CTA band */
.cta-band{background:var(--navy); color:var(--white); text-align:center; padding:64px 24px; border-radius:16px;}
.cta-band h2{color:var(--white); font-size:clamp(1.5rem,3vw,2.2rem);}
.cta-band p{color:#C3D2E4; max-width:52ch; margin:0 auto 24px;}

/* breadcrumb */
.breadcrumb{font-family:var(--font-mono); font-size:0.78rem; color:var(--slate); padding:18px 0 0;}
.breadcrumb a{color:var(--slate); text-decoration:none;}
.breadcrumb a:hover{text-decoration:underline;}

/* long-form review sections */
.review-section{max-width:74ch; margin:0 auto 44px;}
.review-section h2{font-size:1.4rem; border-bottom:2px solid var(--line); padding-bottom:10px; margin-bottom:14px;}
.review-section p{color:var(--ink);}
.article-intro{max-width:74ch; margin:0 auto 40px; font-size:1.08rem; color:var(--slate);}

/* footer */
.site-footer{background:var(--navy); color:#B9C7DA; padding:56px 0 28px; margin-top:64px;}
.footer-grid{display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:32px;}
.footer-grid h4{color:var(--white); font-family:var(--font-body); font-size:0.82rem; text-transform:uppercase; letter-spacing:0.08em; margin-bottom:14px;}
.footer-grid a{color:#B9C7DA; text-decoration:none; display:block; margin-bottom:9px; font-size:0.92rem;}
.footer-grid a:hover{color:var(--white);}
.footer-about{font-size:0.9rem; max-width:40ch; color:#9FB3CE;}
.footer-bottom{border-top:1px solid var(--line-dark); margin-top:36px; padding-top:22px; font-size:0.8rem; color:#7F93AC; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;}

@media (max-width:920px){
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero .container{grid-template-columns:1fr;}
  .hero-visual{order:-1; margin-bottom:12px;}
  .seal{width:170px;height:170px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  nav.main-nav{display:none;}
  .nav-toggle{display:block;}
  .header-actions .lang-switch{display:none;}
  .why-grid{grid-template-columns:1fr;}
}
.site-header.nav-open nav.main-nav{
  display:flex; position:absolute; top:64px; left:0; right:0; background:var(--navy);
  flex-direction:column; padding:12px 24px 20px; gap:6px; border-bottom:1px solid var(--line-dark);
  z-index:100;
}
.site-header.nav-open .header-actions .lang-switch{display:block;}
@media (max-width:480px){
  .footer-grid{grid-template-columns:1fr;}
  .hero-ctas{display:flex; flex-direction:column; align-items:center; gap:10px;}
  .hero-ctas .btn{width:100%; max-width:320px; justify-content:center;}
  .cta-band{text-align:center;}
  .cta-band .btn{display:block; width:100%; max-width:320px; margin:0 auto;}
  .verdict-box .btn,.verdict-box div[style]{display:flex; flex-direction:column; align-items:center;}
  .verdict-box div[style] .btn{width:100%; max-width:320px;}
  .table-wrap{font-size:0.82rem;}
  h1{font-size:1.7rem;}
  .section-head h2{font-size:1.3rem;}
}