/* ============================================================
   SignalLab — global IPTV technology publication
   Original design system. Dark, premium, "signal lab" motif.
   ============================================================ */

:root{
  --bg:#0a100e;
  --bg2:#0d1412;
  --panel:#111917;
  --card:rgba(148,255,214,.035);
  --card-solid:#121a18;
  --line:rgba(148,255,214,.10);
  --line-soft:rgba(148,255,214,.06);
  --text:#e7f0ec;
  --mut:#95a8a1;
  --faint:#667872;
  --mint:#5ef2b4;
  --cyan:#43d9e6;
  --amber:#ffd166;
  --red:#ff8f8f;
  --grad:linear-gradient(115deg,#5ef2b4 10%,#43d9e6 90%);
  --grad-soft:linear-gradient(115deg,rgba(94,242,180,.14),rgba(67,217,230,.14));
  --radius:18px;
  --radius-sm:12px;
  --wrap:1180px;
  --font-d:"Bricolage Grotesque",system-ui,sans-serif;
  --font-b:"Figtree",system-ui,sans-serif;
  --font-m:"JetBrains Mono",ui-monospace,monospace;
  --shadow:0 18px 50px -18px rgba(0,0,0,.55);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-padding-top:96px}
body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-b);
  font-size:16.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:rgba(94,242,180,.25)}

/* ---------- signal backdrop ---------- */
.backdrop{position:fixed;inset:0;z-index:-2;pointer-events:none;overflow:hidden}
.backdrop::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(900px 480px at 85% -10%,rgba(67,217,230,.10),transparent 60%),
    radial-gradient(760px 520px at -10% 12%,rgba(94,242,180,.08),transparent 55%),
    var(--bg);
}
.backdrop::after{ /* lab grid */
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:
    linear-gradient(rgba(148,255,214,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(148,255,214,.045) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(1100px 640px at 50% 0,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(1100px 640px at 50% 0,#000 20%,transparent 78%);
}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 26px}

/* ---------- typography ---------- */
h1,h2,h3,h4{font-family:var(--font-d);line-height:1.14;letter-spacing:-.015em;font-weight:600}
h1{font-size:clamp(2.3rem,5.4vw,3.9rem)}
h2{font-size:clamp(1.65rem,3.4vw,2.4rem)}
h3{font-size:clamp(1.15rem,2vw,1.45rem)}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.kicker{
  font-family:var(--font-m);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--mint);display:inline-flex;align-items:center;gap:.6em;margin-bottom:1.1rem;
}
.kicker::before{content:"";width:22px;height:1px;background:var(--grad)}
.lede{color:var(--mut);font-size:1.09rem;max-width:62ch}
.center{text-align:center}
.center .lede{margin-inline:auto}
.center .kicker::before{display:none}

/* ---------- header ---------- */
.site-head{
  position:fixed;inset:0 0 auto 0;z-index:60;
  transition:background .3s,border-color .3s;
  border-bottom:1px solid transparent;
}
.site-head.scrolled{background:rgba(10,16,14,.86);backdrop-filter:blur(14px);border-color:var(--line-soft)}
.site-head .bar{display:flex;align-items:center;gap:2rem;height:76px;max-width:var(--wrap);margin:0 auto;padding:0 26px}
.logo{display:flex;align-items:center;gap:.65rem;font-family:var(--font-d);font-weight:700;font-size:1.22rem;letter-spacing:-.02em}
.logo .pip{width:26px;height:26px;border-radius:8px;background:var(--grad);position:relative;flex:none}
.logo .pip::after{content:"";position:absolute;inset:7px;border-radius:4px;background:var(--bg)}
.logo .pip::before{content:"";position:absolute;left:11px;top:11px;width:4px;height:4px;border-radius:50%;background:var(--mint);z-index:1}
.logo b{font-weight:700}
.logo span{color:var(--mint)}
.nav{display:flex;gap:.2rem;margin-left:auto;align-items:center}
.nav a{
  padding:.5rem .85rem;border-radius:10px;color:var(--mut);font-size:.94rem;font-weight:500;
  transition:color .2s,background .2s;
}
.nav a:hover{color:var(--text);background:rgba(148,255,214,.06)}
.nav a[aria-current="page"]{color:var(--text);background:rgba(148,255,214,.08)}
.nav .cta{
  margin-left:.6rem;background:var(--grad);color:#06110d;font-weight:700;padding:.55rem 1.1rem;border-radius:12px;
}
.nav .cta:hover{filter:brightness(1.08);color:#06110d}
.menu-btn{display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);position:relative}
.menu-btn i,.menu-btn::before,.menu-btn::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--text);transition:.25s;
}
.menu-btn::before{top:15px}.menu-btn i{top:21px}.menu-btn::after{top:27px}
body.menu-open .menu-btn::before{top:21px;transform:rotate(45deg)}
body.menu-open .menu-btn i{opacity:0}
body.menu-open .menu-btn::after{top:21px;transform:rotate(-45deg)}

/* mobile drawer */
.drawer{display:none}
body.menu-open{overflow:hidden}
@media (max-width:960px){
  .nav{display:none}
  .menu-btn{display:block}
  .drawer{
    display:flex;flex-direction:column;gap:.35rem;position:fixed;inset:76px 0 0 0;z-index:55;
    background:rgba(10,16,14,.97);backdrop-filter:blur(16px);padding:1.6rem 26px 2.4rem;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:.28s;overflow:auto;
  }
  body.menu-open .drawer{transform:none;opacity:1;pointer-events:auto}
  .drawer a{padding:.85rem 1rem;border-radius:12px;font-size:1.08rem;font-weight:600;border:1px solid transparent}
  .drawer a[aria-current="page"]{border-color:var(--line);background:var(--card)}
  .drawer .grp{font-family:var(--font-m);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--faint);margin:.9rem 0 .2rem;padding:0 1rem}
}

/* ---------- hero ---------- */
.hero{padding:170px 0 80px;position:relative}
.hero .lede{margin-top:1.2rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.9rem;margin-top:2.1rem}
.hero-stats{display:flex;flex-wrap:wrap;gap:2.6rem;margin-top:3.2rem}
.hero-stats .stat b{font-family:var(--font-d);font-size:1.7rem;display:block}
.hero-stats .stat span{color:var(--faint);font-size:.86rem}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:4rem;align-items:center}
@media (max-width:960px){.hero-grid{grid-template-columns:1fr}.hero{padding-top:130px}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;padding:.85rem 1.5rem;border-radius:14px;
  font-weight:700;font-size:.98rem;transition:.2s;border:1px solid transparent;
}
.btn-solid{background:var(--grad);color:#06110d}
.btn-solid:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);color:var(--text);background:var(--card)}
.btn-ghost:hover{border-color:rgba(148,255,214,.3);background:rgba(148,255,214,.07)}
.btn-sm{padding:.55rem 1rem;font-size:.88rem;border-radius:11px}

/* ---------- sections ---------- */
section{padding:74px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;margin-bottom:2.6rem;flex-wrap:wrap}
.sec-head .lede{margin-top:.7rem}
.sec-link{font-family:var(--font-m);font-size:.8rem;letter-spacing:.08em;color:var(--mint);white-space:nowrap;padding-bottom:.35rem}
.sec-link:hover{text-decoration:underline}

/* ---------- cards ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:1.7rem;transition:.25s;position:relative;overflow:hidden;
}
.card:hover{border-color:rgba(148,255,214,.24);transform:translateY(-3px);box-shadow:var(--shadow)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.3rem}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.3rem}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.3rem}
@media (max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.grid-3,.grid-2,.grid-4{grid-template-columns:1fr}}

/* ---------- badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:.4em;font-family:var(--font-m);font-size:.68rem;
  letter-spacing:.08em;text-transform:uppercase;padding:.32em .75em;border-radius:100px;
  border:1px solid var(--line);color:var(--mut);background:rgba(10,16,14,.5);
}
.badge.mint{color:var(--mint);border-color:rgba(94,242,180,.35)}
.badge.amber{color:var(--amber);border-color:rgba(255,209,102,.3)}
.chips{display:flex;flex-wrap:wrap;gap:.55rem}
.chip{
  font-size:.85rem;font-weight:600;padding:.5em 1.05em;border-radius:100px;border:1px solid var(--line);
  color:var(--mut);transition:.2s;background:var(--card);
}
.chip:hover{color:var(--text);border-color:rgba(148,255,214,.3)}
.chip.on{background:var(--grad);color:#06110d;border-color:transparent}

/* ---------- app tile (generated logo) ---------- */
.tile{
  width:58px;height:58px;border-radius:16px;flex:none;position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-d);font-weight:700;font-size:1.25rem;color:#06110d;
}
.tile::after{content:"";position:absolute;inset:0;background:
  radial-gradient(14px 14px at 82% 18%,rgba(255,255,255,.35),transparent 70%)}
.tile.lg{width:84px;height:84px;border-radius:22px;font-size:1.8rem}

/* app card */
.app-card{display:flex;flex-direction:column;gap:1.05rem}
.app-card .top{display:flex;align-items:center;gap:1rem}
.app-card h3{font-size:1.18rem}
.app-card .plats{display:flex;flex-wrap:wrap;gap:.4rem}
.app-card .plats span{font-family:var(--font-m);font-size:.64rem;letter-spacing:.05em;padding:.3em .6em;border-radius:7px;background:rgba(148,255,214,.07);color:var(--mut)}
.app-card p{color:var(--mut);font-size:.94rem}
.app-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}
.app-card .foot .more{font-family:var(--font-m);font-size:.76rem;color:var(--mint)}
.score{display:inline-flex;align-items:baseline;gap:.15em;font-family:var(--font-d)}
.score b{font-size:1.15rem}
.score i{font-style:normal;color:var(--faint);font-size:.75rem}

/* ---------- article card ---------- */
.post-card{display:flex;flex-direction:column;gap:0;padding:0}
.post-card .cover{aspect-ratio:16/9;position:relative;overflow:hidden}
.post-card .cover svg{width:100%;height:100%;object-fit:cover}
.post-card .body{padding:1.4rem 1.5rem 1.6rem;display:flex;flex-direction:column;gap:.75rem;flex:1}
.post-card .meta{display:flex;align-items:center;gap:.8rem;font-family:var(--font-m);font-size:.7rem;letter-spacing:.06em;color:var(--faint);text-transform:uppercase}
.post-card .meta .cat{color:var(--mint)}
.post-card h3{font-size:1.12rem;line-height:1.35}
.post-card p{color:var(--mut);font-size:.93rem}
.post-card:hover h3{color:var(--mint)}

/* news list */
.news-row{
  display:grid;grid-template-columns:110px 1fr auto;gap:1.6rem;align-items:baseline;
  padding:1.25rem 0;border-bottom:1px solid var(--line-soft);
}
.news-row:hover h3{color:var(--mint)}
.news-row time{font-family:var(--font-m);font-size:.74rem;color:var(--faint)}
.news-row h3{font-size:1.05rem;font-weight:600;transition:.2s}
.news-row p{color:var(--mut);font-size:.9rem;margin-top:.3rem}
.news-row .cat{font-family:var(--font-m);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mint);white-space:nowrap}
@media (max-width:640px){.news-row{grid-template-columns:1fr;gap:.3rem}}

/* ---------- ranking ---------- */
.rank-item{display:grid;grid-template-columns:70px 1fr;gap:1.6rem;padding:1.9rem;align-items:start}
.rank-item .num{
  font-family:var(--font-d);font-weight:700;font-size:2.1rem;line-height:1;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.rank-item .head{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;margin-bottom:.7rem}
.rank-item p{color:var(--mut);font-size:.96rem}
.rank-cols{display:grid;grid-template-columns:1fr 1fr;gap:.6rem 2rem;margin-top:1rem}
.rank-cols li{font-size:.9rem;color:var(--mut);list-style:none;padding-left:1.3em;position:relative}
.rank-cols li::before{content:"";position:absolute;left:0;top:.55em;width:7px;height:7px;border-radius:2px}
.rank-cols .pro li::before{background:var(--mint)}
.rank-cols .con li::before{background:var(--red);border-radius:50%}
@media (max-width:640px){.rank-item{grid-template-columns:1fr}.rank-cols{grid-template-columns:1fr}}

/* ---------- tables ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--card)}
table{width:100%;border-collapse:collapse;min-width:720px;font-size:.92rem}
th,td{padding:.95rem 1.2rem;text-align:left;border-bottom:1px solid var(--line-soft)}
th{font-family:var(--font-m);font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--mint);background:rgba(94,242,180,.05)}
tr:last-child td{border-bottom:0}
td .yes{color:var(--mint)}td .no{color:var(--faint)}
tbody tr:hover{background:rgba(148,255,214,.04)}

/* ---------- FAQ accordion ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--card);overflow:hidden;margin-bottom:.8rem}
.faq summary{
  list-style:none;cursor:pointer;padding:1.2rem 1.5rem;font-weight:600;font-size:1.02rem;
  display:flex;justify-content:space-between;align-items:center;gap:1.5rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-family:var(--font-d);font-size:1.4rem;color:var(--mint);flex:none;transition:.25s;line-height:1;
}
.faq[open] summary::after{transform:rotate(45deg)}
.faq .ans{padding:0 1.5rem 1.35rem;color:var(--mut);font-size:.96rem}
.faq .ans a{color:var(--mint);text-decoration:underline;text-underline-offset:3px}

/* ---------- article / prose ---------- */
.prose{max-width:760px}
.prose>*+*{margin-top:1.15em}
.prose h2{margin-top:2.2em;font-size:1.55rem}
.prose h3{margin-top:1.8em;font-size:1.2rem}
.prose p,.prose li{color:#c3d2cc;font-size:1.02rem}
.prose ul,.prose ol{padding-left:1.4em}
.prose li+li{margin-top:.5em}
.prose a{color:var(--mint);text-decoration:underline;text-underline-offset:3px}
.prose blockquote{border-left:3px solid var(--mint);padding:.4em 0 .4em 1.2em;color:var(--mut);font-style:italic}
.prose .note{
  border:1px solid rgba(255,209,102,.25);background:rgba(255,209,102,.06);
  border-radius:var(--radius-sm);padding:1.1rem 1.3rem;font-size:.94rem;color:var(--mut);
}
.prose .note b{color:var(--amber)}
.prose code{font-family:var(--font-m);font-size:.85em;background:rgba(148,255,214,.08);padding:.15em .45em;border-radius:6px}

/* breadcrumb */
.crumbs{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;font-family:var(--font-m);font-size:.72rem;letter-spacing:.05em;color:var(--faint);margin-bottom:1.6rem}
.crumbs a{color:var(--mut)}
.crumbs a:hover{color:var(--mint)}
.crumbs .sep{opacity:.4}

/* inner page hero */
.page-hero{padding:150px 0 40px}
.page-hero .lede{margin-top:1rem}

/* ---------- CTA panel ---------- */
.cta-panel{
  border:1px solid var(--line);border-radius:calc(var(--radius) + 6px);
  background:
    radial-gradient(600px 300px at 80% -20%,rgba(67,217,230,.12),transparent 60%),
    radial-gradient(500px 280px at 10% 120%,rgba(94,242,180,.1),transparent 60%),
    var(--panel);
  padding:3.4rem;display:flex;align-items:center;justify-content:space-between;gap:2.5rem;flex-wrap:wrap;
}
.cta-panel h2{max-width:22ch}
.cta-panel p{color:var(--mut);margin-top:.7rem;max-width:48ch}
@media (max-width:640px){.cta-panel{padding:2.2rem}}

/* ---------- editorial stance note ---------- */
.stance{
  border:1px solid var(--line);border-left:3px solid var(--mint);
  background:var(--card);border-radius:var(--radius-sm);
  padding:1.15rem 1.4rem;font-size:.9rem;color:var(--mut);
}
.stance b{color:var(--text)}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line-soft);margin-top:60px;background:rgba(8,13,11,.6)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:3rem;padding:4rem 0 3rem}
.foot-grid h4{font-family:var(--font-m);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);margin-bottom:1.1rem;font-weight:500}
.foot-grid ul{list-style:none;display:flex;flex-direction:column;gap:.6rem}
.foot-grid a{color:var(--mut);font-size:.92rem}
.foot-grid a:hover{color:var(--mint)}
.foot-grid .about-col p{color:var(--mut);font-size:.9rem;margin-top:1rem;max-width:34ch}
.foot-base{
  display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;
  padding:1.6rem 0 2.2rem;border-top:1px solid var(--line-soft);
  font-size:.8rem;color:var(--faint);
}
@media (max-width:960px){.foot-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.foot-grid{grid-template-columns:1fr}}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}}

/* ---------- forms ---------- */
.form{display:grid;gap:1.1rem;max-width:640px}
.form label{font-size:.85rem;font-weight:600;color:var(--mut);display:block;margin-bottom:.45rem}
.form input,.form textarea,.form select{
  width:100%;background:var(--card-solid);border:1px solid var(--line);border-radius:12px;
  padding:.85rem 1.1rem;color:var(--text);font:inherit;font-size:.95rem;transition:.2s;
}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:rgba(94,242,180,.5)}
.form textarea{min-height:150px;resize:vertical}
.form-note{font-size:.8rem;color:var(--faint)}

/* util */
.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mt-3{margin-top:3rem}
.hidden{display:none!important}
.pill-row{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1.6rem}