/* ============================================================
   COMPAREPRICEHUB — "SIGNAL" DESIGN SYSTEM
   Dark control-room aesthetic. Amber phosphor signal accent,
   teal for deal/positive semantics. IBM Plex instrument stack.
   ============================================================ */

:root{
  --void:#0A0E14;
  --panel:#0F1621;
  --panel-2:#131C2B;
  --line:#1E2A3A;
  --line-bright:#2C3E55;
  --signal:#FFA943;          /* amber phosphor — primary accent */
  --signal-dim:rgba(255,169,67,.14);
  --deal:#2DD4BF;            /* teal — savings / positive */
  --deal-dim:rgba(45,212,191,.12);
  --text:#E6EDF3;
  --muted:#8B98A9;
  --faint:#5A6778;
  --font-display:'Archivo',sans-serif;
  --font-body:'IBM Plex Sans',sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
  --maxw:1200px;
  --radius:2px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--void);
  color:var(--text);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* faint blueprint grid over the void */
body::before{
  content:"";
  position:fixed;inset:0;
  background-image:
    linear-gradient(rgba(44,62,85,.12) 1px,transparent 1px),
    linear-gradient(90deg,rgba(44,62,85,.12) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
  z-index:0;
}

::selection{background:var(--signal);color:var(--void)}

a{color:var(--deal);text-decoration:none}
a:hover{color:var(--signal)}
a:focus-visible,button:focus-visible{outline:2px solid var(--signal);outline-offset:3px}

img{max-width:100%;height:auto;display:block}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative;z-index:1}

/* ---------- TICKER ---------- */
.ticker{
  border-bottom:1px solid var(--line);
  background:rgba(10,14,20,.9);
  overflow:hidden;height:34px;display:flex;align-items:center;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;
  position:relative;z-index:5;
}
.ticker-track{display:flex;gap:48px;white-space:nowrap;animation:ticker 42s linear infinite;padding-left:100%}
.ticker-track span{color:var(--muted)}
.ticker-track b{color:var(--deal);font-weight:500}
.ticker-track i{color:var(--signal);font-style:normal}
@keyframes ticker{to{transform:translateX(-100%)}}

/* ---------- NAV ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(10,14,20,.82);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;height:68px;
}
.logo{display:flex;align-items:center;gap:12px;color:var(--text)}
.logo:hover{color:var(--text)}
.logo svg{flex-shrink:0}
.logo-word{font-family:var(--font-display);font-weight:800;font-size:17px;letter-spacing:.02em;text-transform:uppercase}
.logo-word em{font-style:normal;color:var(--signal)}
.logo-sub{display:block;font-family:var(--font-mono);font-size:9px;letter-spacing:.28em;color:var(--muted);text-transform:uppercase;margin-top:1px}
.nav-links{display:flex;gap:4px;list-style:none;align-items:center}
.nav-links a{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);padding:8px 14px;border:1px solid transparent;border-radius:var(--radius);
  transition:all .2s;
}
.nav-links a:hover{color:var(--text);border-color:var(--line-bright);background:var(--panel)}
.nav-links a.active{color:var(--signal);border-color:var(--signal);background:var(--signal-dim)}
.nav-burger{display:none;background:none;border:1px solid var(--line-bright);border-radius:var(--radius);width:42px;height:42px;cursor:pointer;position:relative}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{
  content:"";display:block;width:18px;height:2px;background:var(--signal);position:absolute;left:11px;transition:all .25s;
}
.nav-burger span{top:20px}
.nav-burger span::before{top:-6px;left:0}
.nav-burger span::after{top:6px;left:0}
.nav.open .nav-burger span{background:transparent}
.nav.open .nav-burger span::before{transform:rotate(45deg);top:0}
.nav.open .nav-burger span::after{transform:rotate(-45deg);top:0}

/* ---------- EYEBROW / SECTION HEADERS ---------- */
.sys{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--signal);display:flex;align-items:center;gap:12px;margin-bottom:18px;
}
.sys::before{content:"";width:34px;height:1px;background:var(--signal)}
.sys .cursor{display:inline-block;width:7px;height:14px;background:var(--signal);animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

h1,h2,h3{font-family:var(--font-display);line-height:1.15;letter-spacing:-.01em}
.h-xl{font-size:clamp(38px,6vw,74px);font-weight:900;text-transform:uppercase;letter-spacing:-.02em}
.h-lg{font-size:clamp(28px,4vw,46px);font-weight:800}
.h-md{font-size:clamp(21px,2.6vw,28px);font-weight:700}

/* ---------- HERO (radar) ---------- */
.hero{position:relative;padding:90px 0 70px;overflow:hidden;border-bottom:1px solid var(--line)}
.radar{
  position:absolute;top:50%;right:-180px;transform:translateY(-50%);
  width:640px;height:640px;border-radius:50%;
  border:1px solid var(--line-bright);opacity:.9;pointer-events:none;
}
.radar::before,.radar::after{
  content:"";position:absolute;border-radius:50%;border:1px solid var(--line);
}
.radar::before{inset:18%}
.radar::after{inset:36%}
.radar .ring3{position:absolute;inset:8%;border-radius:50%;border:1px dashed var(--line)}
.radar .sweep{
  position:absolute;inset:0;border-radius:50%;
  background:conic-gradient(from 0deg,rgba(255,169,67,.28),transparent 68deg);
  animation:sweep 5.5s linear infinite;
  mix-blend-mode:screen;
}
@keyframes sweep{to{transform:rotate(360deg)}}
.radar .blip{
  position:absolute;width:8px;height:8px;border-radius:50%;
  background:var(--deal);box-shadow:0 0 12px var(--deal);
  animation:blip 3.2s ease-in-out infinite;
}
.radar .blip.b2{animation-delay:1.1s;background:var(--signal);box-shadow:0 0 12px var(--signal)}
.radar .blip.b3{animation-delay:2.2s}
@keyframes blip{0%,100%{opacity:.25;transform:scale(.7)}50%{opacity:1;transform:scale(1.15)}}
.hero-inner{position:relative;z-index:2;max-width:720px}
.hero .h-xl .accent{color:var(--signal)}
.hero-sub{color:var(--muted);font-size:19px;margin:26px 0 36px;max-width:560px}
.hero-sub b{color:var(--text);font-weight:600}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:13px;letter-spacing:.1em;text-transform:uppercase;
  padding:14px 26px;border-radius:var(--radius);border:1px solid var(--signal);
  color:var(--signal);background:transparent;cursor:pointer;transition:all .2s;position:relative;overflow:hidden;
}
.btn::after{content:"";position:absolute;inset:0;background:var(--signal);transform:scaleX(0);transform-origin:left;transition:transform .25s;z-index:-1}
.btn:hover{color:var(--void)}
.btn:hover::after{transform:scaleX(1)}
.btn.solid{background:var(--signal);color:var(--void)}
.btn.solid:hover{box-shadow:0 0 26px rgba(255,169,67,.35)}
.btn.ghost{border-color:var(--line-bright);color:var(--muted)}
.btn.ghost:hover{color:var(--void);border-color:var(--signal)}
.btn.ghost::after{background:var(--signal)}

/* ---------- PANELS / HUD CARDS ---------- */
.panel{
  background:linear-gradient(180deg,var(--panel-2),var(--panel));
  border:1px solid var(--line);border-radius:var(--radius);
  position:relative;transition:border-color .25s,transform .25s,box-shadow .25s;
}
.panel .corner{position:absolute;width:12px;height:12px;border-color:var(--signal);border-style:solid;opacity:0;transition:opacity .25s}
.panel .corner.tl{top:-1px;left:-1px;border-width:2px 0 0 2px}
.panel .corner.tr{top:-1px;right:-1px;border-width:2px 2px 0 0}
.panel .corner.bl{bottom:-1px;left:-1px;border-width:0 0 2px 2px}
.panel .corner.br{bottom:-1px;right:-1px;border-width:0 2px 2px 0}
.panel:hover{border-color:var(--line-bright);transform:translateY(-4px);box-shadow:0 18px 44px rgba(0,0,0,.45)}
.panel:hover .corner{opacity:1}
.panel:hover .scanline{animation:scan 1s ease-out}
.scanline{position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,transparent,var(--signal),transparent);opacity:0;pointer-events:none}
@keyframes scan{0%{opacity:.9;top:0}100%{opacity:0;top:100%}}

/* ---------- SECTIONS ---------- */
.section{padding:88px 0;border-bottom:1px solid var(--line);position:relative}
.section-head{margin-bottom:44px;max-width:680px}
.section-head p{color:var(--muted);margin-top:14px}

/* category grid */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.cat-card{overflow:hidden;display:flex;flex-direction:column;color:var(--text)}
.cat-card:hover{color:var(--text)}
.cat-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line)}
.cat-media img{width:100%;height:100%;object-fit:cover;filter:saturate(.75) contrast(1.05);transition:transform .5s,filter .5s}
.cat-card:hover .cat-media img{transform:scale(1.05);filter:saturate(1) contrast(1.05)}
.cat-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,14,20,.75))}
.cat-tag{
  position:absolute;top:12px;left:12px;z-index:2;
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  background:rgba(10,14,20,.85);border:1px solid var(--signal);color:var(--signal);
  padding:5px 10px;border-radius:var(--radius);
}
.cat-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.cat-body h3{font-size:20px;font-weight:700}
.cat-body p{color:var(--muted);font-size:15px;flex:1}
.cat-link{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--deal);display:flex;align-items:center;gap:8px}
.cat-link::after{content:"→";transition:transform .2s}
.cat-card:hover .cat-link::after{transform:translateX(6px)}

/* brand strip */
.brand-strip{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.brand-cell{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;display:flex;align-items:center;justify-content:center;min-height:86px;
  transition:border-color .25s;
}
.brand-cell:hover{border-color:var(--signal)}
.brand-cell img{max-height:44px;width:auto;filter:grayscale(1) brightness(1.6) contrast(.85);opacity:.75;transition:filter .3s,opacity .3s}
.brand-cell:hover img{filter:none;opacity:1;background:#fff;border-radius:2px;padding:4px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.stat{padding:34px 28px;text-align:left}
.stat .num{font-family:var(--font-display);font-weight:900;font-size:clamp(40px,4.6vw,58px);color:var(--signal);letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat .num small{font-size:.55em;color:var(--deal)}
.stat h3{font-size:17px;margin:10px 0 6px}
.stat p{color:var(--muted);font-size:14.5px}

/* experts */
.experts{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.expert{padding:30px;text-align:left}
.expert img{width:84px;height:84px;border-radius:50%;object-fit:cover;border:2px solid var(--line-bright);margin-bottom:18px}
.expert h3{font-size:19px}
.expert .role{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--deal);margin:4px 0 14px}
.expert p{color:var(--muted);font-size:14.5px}

/* promo banners */
.promo{display:block;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative;transition:border-color .25s}
.promo:hover{border-color:var(--signal)}
.promo img{width:100%;object-fit:cover}
.promo-row{display:grid;gap:22px}
.promo .promo-tag{position:absolute;top:10px;right:10px;font-family:var(--font-mono);font-size:9.5px;letter-spacing:.2em;color:var(--muted);background:rgba(10,14,20,.85);padding:4px 8px;border:1px solid var(--line);border-radius:var(--radius);text-transform:uppercase}

/* signal svg path */
.sigpath{position:absolute;left:0;right:0;pointer-events:none;z-index:0}
.sigpath path{stroke:var(--signal);stroke-width:1.5;fill:none;opacity:.35}

/* ---------- BLOG ARCHIVE ---------- */
.page-head{padding:72px 0 48px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
.filter-btn{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;
  padding:8px 16px;border:1px solid var(--line-bright);border-radius:var(--radius);
  background:transparent;color:var(--muted);cursor:pointer;transition:all .2s;
}
.filter-btn:hover{color:var(--text);border-color:var(--signal)}
.filter-btn.active{background:var(--signal);border-color:var(--signal);color:var(--void)}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:56px 0}
.post-card{padding:26px;display:flex;flex-direction:column;gap:12px;color:var(--text)}
.post-card:hover{color:var(--text)}
.post-meta{display:flex;gap:10px;align-items:center;font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase}
.post-meta .cat{color:var(--signal);border:1px solid var(--signal);padding:3px 8px;border-radius:var(--radius)}
.post-meta .lang{color:var(--muted);border:1px solid var(--line-bright);padding:3px 8px;border-radius:var(--radius)}
.post-card h3{font-size:19px;font-weight:700;line-height:1.35}
.post-card p{color:var(--muted);font-size:14.5px;flex:1}
.post-card .cat-link{margin-top:4px}

/* ---------- ARTICLE ---------- */
.article-head{padding:70px 0 44px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.article-head h1{font-size:clamp(28px,4.4vw,52px);font-weight:900;max-width:900px;letter-spacing:-.015em}
.article-body{max-width:780px;margin:0 auto;padding:56px 24px 80px;position:relative;z-index:1}
.article-body h2{font-size:clamp(23px,3vw,30px);margin:52px 0 18px;padding-top:26px;border-top:1px solid var(--line);position:relative}
.article-body h2::before{content:"//";font-family:var(--font-mono);color:var(--signal);margin-right:12px;font-size:.75em;font-weight:400}
.article-body h3{font-size:20px;margin:34px 0 12px;color:var(--text)}
.article-body h3::before{content:"›";color:var(--deal);margin-right:10px}
.article-body p{margin:0 0 18px;color:#C4CEDA}
.article-body ul,.article-body ol{margin:0 0 22px 26px;color:#C4CEDA}
.article-body li{margin-bottom:8px}
.article-body img{border:1px solid var(--line);border-radius:var(--radius);margin:28px 0}
.article-body a{border-bottom:1px dashed var(--deal)}
.article-body a:hover{border-bottom-style:solid}
.article-body strong{color:var(--text)}
.article-body blockquote{border-left:2px solid var(--signal);padding:6px 0 6px 22px;margin:26px 0;color:var(--muted);font-style:italic}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body th{background:var(--panel-2);font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--signal)}
.article-body tr:hover td{background:rgba(255,169,67,.03)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:22px;max-width:780px;margin:0 auto;padding:0 24px 70px}
.post-nav a{padding:20px 22px;font-size:15px;color:var(--text)}
.post-nav .lbl{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;display:block;margin-bottom:8px}
.post-nav a:hover .lbl{color:var(--signal)}

/* ---------- CONTENT PAGES ---------- */
.content-body{max-width:820px;margin:0 auto;padding:56px 24px 90px;position:relative;z-index:1}
.content-body h2{font-size:clamp(22px,2.8vw,28px);margin:44px 0 16px}
.content-body h2::before{content:"//";font-family:var(--font-mono);color:var(--signal);margin-right:12px;font-size:.75em}
.content-body h3{font-size:19px;margin:28px 0 10px}
.content-body p,.content-body li{color:#C4CEDA}
.content-body p{margin-bottom:16px}
.content-body ul,.content-body ol{margin:0 0 20px 26px}
.content-body li{margin-bottom:8px}
.content-body strong{color:var(--text)}
.kv{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);padding:26px;margin:26px 0}
.kv .k{font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--signal);margin-bottom:8px}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
.mail-cta{padding:38px;text-align:center}
.mail-cta .addr{font-family:var(--font-mono);font-size:clamp(15px,2.2vw,20px);color:var(--deal);margin:18px 0 26px;word-break:break-all}

/* ---------- FOOTER ---------- */
footer{border-top:1px solid var(--line);background:var(--panel);position:relative;z-index:1}
.foot-inner{max-width:var(--maxw);margin:0 auto;padding:56px 24px 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:40px}
.foot-grid h4{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--signal);margin-bottom:18px}
.foot-grid ul{list-style:none}
.foot-grid li{margin-bottom:10px}
.foot-grid a{color:var(--muted);font-size:14.5px}
.foot-grid a:hover{color:var(--text)}
.foot-grid p{color:var(--muted);font-size:14.5px}
.disclaimer{border-top:1px solid var(--line);padding-top:26px;color:#6B7789;font-size:12.5px;line-height:1.75}
.copyright{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:#5A6778;margin-top:18px;text-transform:uppercase}

/* ---------- REVEAL ANIMATION ---------- */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}
.rv.d4{transition-delay:.32s}.rv.d5{transition-delay:.4s}

/* ---------- RESPONSIVE ---------- */
@media(max-width:1000px){
  .grid-3,.stats,.experts,.post-grid{grid-template-columns:repeat(2,1fr)}
  .brand-strip{grid-template-columns:repeat(3,1fr)}
  .radar{width:480px;height:480px;right:-220px;opacity:.5}
}
@media(max-width:720px){
  body{font-size:16px}
  .nav-links{
    display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;
    background:rgba(10,14,20,.97);border-bottom:1px solid var(--line);padding:16px 24px 22px;gap:8px;
  }
  .nav.open .nav-links{display:flex}
  .nav-burger{display:block}
  .grid-3,.grid-2,.stats,.experts,.post-grid,.post-nav,.contact-grid{grid-template-columns:1fr}
  .brand-strip{grid-template-columns:repeat(2,1fr)}
  .section{padding:64px 0}
  .radar{display:none}
  .hero{padding:64px 0 56px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important}
  .rv{opacity:1;transform:none}
  html{scroll-behavior:auto}
}