*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  /* Zetrol marketing palette (chrome) */
  --Y:#F0B800;--Y2:#FFD000;--Y3:#C89600;
  --K:#0D0C0A;--K2:#1E1C18;
  /* Moterr editorial palette (body) */
  --sand:#F5E6C8;--sand-light:#FBF4E9;--sand-dark:#C9A96E;--dust:#E8D5B5;
  --charcoal:#1A1A1A;--slate:#2D2D2D;--iron:#3A3A3A;--steel:#6B6B6B;
  --red-hot:#D4442A;--red-deep:#A8301A;
  --amber:#E8912E;--amber-light:#F5C76E;
  --cool-blue:#4A90B8;
  --white:#FAFAF8;--off-white:#F0EDE6;
  /* Type */
  --H:'Barlow Condensed',sans-serif;
  --S:'Source Serif 4',Georgia,serif;
  --M:'JetBrains Mono',monospace;
  --AR:'Noto Kufi Arabic',sans-serif;
}

html{scroll-behavior:smooth}
body{font-family:var(--S);background:var(--white);color:var(--charcoal);line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}

/* Bilingual */
body:not(.ar) .ai{display:none}
body.ar .ei{display:none}
body.ar{direction:rtl}
body.ar nav,body.ar footer,body.ar .topbar,body.ar .hero-band,body.ar .score-bar{font-family:var(--AR)}

/* ── TOPBAR ── (matches zetrol-home.html) */
.topbar{background:var(--Y);color:var(--K);text-align:center;padding:9px 20px;font-family:var(--H);font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase}
.topbar a{text-decoration:underline;color:var(--K);margin-left:10px}

/* ── NAV ── */
nav{
  position:sticky;top:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 40px;height:64px;
  background:rgba(13,12,10,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-logo{display:flex;align-items:center}
.nav-logo-img{height:40px;width:auto;display:block;transition:opacity .2s}
.nav-logo:hover .nav-logo-img{opacity:.85}
.nav-right{display:flex;align-items:center;gap:24px}
.nav-links{display:flex;gap:32px;font-family:var(--H);font-size:13px;font-weight:400;letter-spacing:.06em;text-transform:uppercase;color:#9A9088}
.nav-links a:hover{color:var(--Y);transition:color .2s}
.lang-toggle:hover{border-color:var(--Y);color:var(--Y)}
.nav-cta:hover{background:var(--Y2);transform:translateY(-1px)}

/* ── HERO BAND ── (dark, cinematic, full-bleed photo) */
.hero-band{
  position:relative;
  min-height:560px;
  background:var(--charcoal);
  color:var(--sand);
  overflow:hidden;
  display:flex;align-items:flex-end;
}
.hero-band-img{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.65}
.hero-band-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(13,12,10,.4) 0%,rgba(13,12,10,.85) 70%,rgba(13,12,10,.98) 100%)}
.hero-band-inner{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:0 40px 56px;width:100%}
.hero-eyebrow{font-family:var(--H);font-weight:700;font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--Y);margin-bottom:18px;display:flex;align-items:center;gap:10px}
.hero-eyebrow::before{content:'';width:32px;height:2px;background:var(--Y)}
.hero-h1{font-family:var(--H);font-size:clamp(48px,8vw,96px);font-weight:900;line-height:.95;letter-spacing:-.01em;text-transform:uppercase;color:var(--white);margin-bottom:14px}
.hero-h1 em{font-style:italic;color:var(--Y)}
.hero-sub{font-family:var(--S);font-style:italic;font-size:clamp(18px,2vw,22px);color:var(--sand-dark);max-width:640px;line-height:1.5}

/* ── SCORE BAR ── (just under hero, sand-light strip) */
.score-bar{
  background:var(--charcoal);
  border-top:1px solid rgba(232,145,46,.15);
  color:var(--sand);padding:18px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  font-family:var(--H);
}
.breadcrumb{font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--sand-dark)}
.breadcrumb a{color:var(--sand-dark);transition:color .2s}
.breadcrumb a:hover{color:var(--Y)}
.breadcrumb .sep{margin:0 10px;color:rgba(245,230,200,.3)}
.breadcrumb .here{color:var(--white)}
.score-chips{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-weight:700}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;background:rgba(245,230,200,.06);border:1px solid rgba(245,230,200,.12);font-size:12px;letter-spacing:.08em;text-transform:uppercase}
.chip .v{font-weight:900;font-size:14px;color:var(--Y)}
.chip.total{background:var(--Y);color:var(--K);border-color:var(--Y);padding:6px 14px;font-weight:900;font-size:13px}
.chip.total .v{color:var(--K);font-size:16px}

/* ── AT-A-GLANCE CARD ── */
.glance{max-width:1200px;margin:0 auto;padding:48px 40px 0}
.glance-card{background:var(--sand-light);border:1px solid var(--dust);border-radius:6px;padding:32px 36px;display:grid;grid-template-columns:repeat(4,1fr);gap:28px 36px}
.g{display:flex;flex-direction:column;gap:4px}
.g-lbl{font-family:var(--H);font-weight:700;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--steel)}
.g-val{font-family:var(--H);font-weight:700;font-size:18px;color:var(--charcoal);line-height:1.2}
.g-val small{font-family:var(--S);font-style:italic;font-size:13px;color:var(--steel);font-weight:400;display:block;margin-top:2px}

/* ── ARTICLE BODY ── */
.article{max-width:780px;margin:0 auto;padding:64px 24px 80px}
.lead{font-family:var(--S);font-size:21px;line-height:1.7;color:var(--iron);border-left:4px solid var(--amber);padding-left:24px;margin:0 0 40px}
.article p{margin:18px 0;color:var(--slate)}
.article p strong{color:var(--charcoal);font-weight:700}
.article ul{margin:16px 0 16px 24px;color:var(--slate)}
.article ul li{margin:8px 0;padding-left:8px}
.article ul li strong{color:var(--charcoal);font-weight:700}

h2{font-family:var(--H);font-weight:700;font-size:32px;text-transform:uppercase;letter-spacing:.5px;color:var(--charcoal);margin:64px 0 12px;padding-top:36px;border-top:3px solid var(--charcoal)}
h2 .num{color:var(--red-hot);margin-right:8px;font-weight:800}
h3{font-family:var(--H);font-weight:600;font-size:22px;text-transform:uppercase;letter-spacing:.3px;color:var(--slate);margin:36px 0 12px}

/* ── CALLOUTS ── (from guide template) */
.callout{background:var(--sand-light);border-left:4px solid var(--amber);padding:22px 26px;margin:28px 0;border-radius:0 6px 6px 0}
.callout.desert{border-left-color:var(--red-hot);background:linear-gradient(135deg,#FFF5F2,#FBF4E9)}
.callout.tech{border-left-color:var(--cool-blue);background:#F4F8FB}
.callout.warning{border-left-color:var(--charcoal);background:#F5F4F2}
.callout-label{font-family:var(--H);font-weight:600;font-size:13px;letter-spacing:.18em;text-transform:uppercase;margin-bottom:8px}
.callout.desert .callout-label{color:var(--red-hot)}
.callout.tech .callout-label{color:var(--cool-blue)}
.callout.warning .callout-label{color:var(--charcoal)}
.callout p{margin:6px 0;font-size:15.5px}

/* ── INLINE IMAGE ── */
.fig{margin:36px -50px;position:relative}
.fig img{width:100%;height:auto;display:block;border-radius:4px}
.fig-cap{font-family:var(--H);font-size:12px;letter-spacing:.15em;text-transform:uppercase;color:var(--steel);margin-top:10px;text-align:center}
@media(max-width:900px){.fig{margin:32px 0}}

/* ── SECTION DIVIDER ── */
.divider{text-align:center;margin:48px 0 8px;color:var(--sand-dark);font-family:var(--H);font-size:18px;letter-spacing:.4em}

/* ── STAGE CARDS (Y61-tuned) ── */
.stages-sec{background:var(--off-white);padding:80px 40px;border-top:1px solid var(--dust);border-bottom:1px solid var(--dust)}
.stages-inner{max-width:1200px;margin:0 auto}
.stages-h{font-family:var(--H);font-weight:800;font-size:clamp(32px,5vw,52px);text-transform:uppercase;color:var(--charcoal);margin-bottom:8px;letter-spacing:-.01em}
.stages-h em{font-style:italic;color:var(--red-hot)}
.stages-sub{font-family:var(--S);font-size:17px;color:var(--slate);max-width:560px;margin-bottom:40px;line-height:1.6}
.stages-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--dust)}
.stage{background:var(--white);padding:32px 28px;position:relative;overflow:hidden}
.stage-n{font-family:var(--H);font-weight:900;font-size:120px;color:var(--sand);position:absolute;top:-20px;left:14px;line-height:1;pointer-events:none}
.stage-badge{display:inline-block;background:var(--charcoal);color:var(--sand);font-family:var(--H);font-weight:700;font-size:11px;letter-spacing:.18em;text-transform:uppercase;padding:5px 12px;margin-bottom:18px;position:relative;z-index:1}
.stage-title{font-family:var(--H);font-weight:700;font-size:22px;text-transform:uppercase;color:var(--charcoal);margin-bottom:6px;position:relative;z-index:1}
.stage-sub{font-family:var(--S);font-style:italic;font-size:14px;color:var(--steel);margin-bottom:18px;position:relative;z-index:1}
.stage-items{list-style:none;display:flex;flex-direction:column;gap:8px;margin-bottom:22px;position:relative;z-index:1}
.stage-items li{font-size:14px;color:var(--slate);padding-left:14px;position:relative}
.stage-items li::before{content:'—';position:absolute;left:0;color:var(--red-hot)}
.stage-cost{font-family:var(--H);font-weight:800;font-size:18px;color:var(--charcoal);border-top:1px solid var(--dust);padding-top:18px;position:relative;z-index:1}
.stage-cost em{font-family:var(--S);font-style:italic;font-size:13px;font-weight:400;color:var(--steel);margin-right:6px}

/* ── CARVIS CARD ── */
.carvis-sec{background:var(--white);padding:80px 40px}
.carvis-inner{max-width:1100px;margin:0 auto}
.carvis-h{font-family:var(--H);font-weight:800;font-size:clamp(28px,4vw,40px);text-transform:uppercase;color:var(--charcoal);letter-spacing:-.01em;margin-bottom:12px}
.carvis-h em{font-style:italic;color:var(--amber)}
.carvis-intro{font-family:var(--S);font-size:17px;color:var(--slate);max-width:600px;margin-bottom:32px;line-height:1.6}
.cv-card{background:var(--charcoal);color:var(--sand);display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--charcoal);overflow:hidden;border-radius:4px}
.cv-inputs{padding:32px 28px;background:#222;border-right:1px solid rgba(232,145,46,.08)}
.cv-output{padding:32px 28px;background:linear-gradient(135deg,#1A1A1A 0%,#2A1F12 100%)}
.cv-step{margin-bottom:18px}
.cv-step:last-child{margin-bottom:0}
.cv-lbl{font-family:var(--H);font-weight:700;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--sand-dark);margin-bottom:5px}
.cv-val{font-family:var(--H);font-weight:600;font-size:16px;color:var(--white);padding:10px 14px;background:rgba(245,230,200,.05);border:1px solid rgba(245,230,200,.1);display:flex;align-items:center;gap:10px}
.cv-val::before{content:'';width:7px;height:7px;background:var(--amber);border-radius:50%}
.cv-out-h{font-family:var(--H);font-weight:700;font-size:10px;letter-spacing:.2em;text-transform:uppercase;color:var(--amber);margin-bottom:14px}
.cv-stage{font-family:var(--H);font-weight:900;font-size:42px;color:var(--amber);line-height:.9;text-transform:uppercase;margin-bottom:6px}
.cv-stage-sub{font-family:var(--H);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--sand-dark);margin-bottom:22px}
.cv-kit{font-family:var(--H);font-weight:700;font-size:17px;color:var(--white);margin-bottom:3px}
.cv-sku{font-family:var(--M);font-size:11px;color:var(--sand-dark);letter-spacing:.04em;margin-bottom:18px}
.cv-price{font-family:var(--H);font-weight:900;font-size:32px;color:var(--white);border-top:1px solid rgba(245,230,200,.1);padding-top:14px}
.cv-price small{font-size:12px;font-weight:400;color:var(--sand-dark);margin-left:6px}
.cv-cta{margin-top:24px;display:inline-block;background:var(--amber);color:var(--charcoal);font-family:var(--H);font-weight:700;font-size:14px;letter-spacing:.1em;text-transform:uppercase;padding:14px 26px;transition:.2s}
.cv-cta:hover{background:var(--amber-light);transform:translateY(-2px)}

/* ── RELATED ROW ── */
.related-sec{background:var(--sand-light);padding:64px 40px;border-top:1px solid var(--dust)}
.related-inner{max-width:1200px;margin:0 auto}
.related-h{font-family:var(--H);font-weight:800;font-size:14px;letter-spacing:.2em;text-transform:uppercase;color:var(--steel);margin-bottom:20px}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--dust);margin-bottom:48px}
.rel-card{background:var(--white);padding:24px;display:flex;flex-direction:column;gap:6px;transition:background .2s}
.rel-card:hover{background:var(--sand-light)}
.rel-brand{font-family:var(--H);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--steel)}
.rel-model{font-family:var(--H);font-weight:700;font-size:17px;color:var(--charcoal);line-height:1.2}
.rel-score{font-family:var(--H);font-weight:900;font-size:24px;color:var(--red-hot);margin-top:8px}
.rel-score small{font-size:13px;color:var(--steel);font-weight:400;margin-left:2px}
.guides-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.guide-link{background:var(--white);padding:20px;border-left:3px solid var(--amber);transition:background .2s,border-color .2s;display:block}
.guide-link:hover{background:var(--off-white);border-left-color:var(--red-hot)}
.guide-link-tag{font-family:var(--H);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);margin-bottom:4px}
.guide-link-h{font-family:var(--H);font-weight:700;font-size:16px;color:var(--charcoal);line-height:1.25}

/* ── CONSULT BAND ── */
.consult-band{background:var(--Y);padding:80px 40px;text-align:center;position:relative;overflow:hidden}
.consult-band::before{content:'ZETROL';position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-family:var(--H);font-weight:900;font-size:240px;color:rgba(0,0,0,.05);pointer-events:none;letter-spacing:-.02em;line-height:1;white-space:nowrap}
.consult-inner{position:relative;z-index:1;max-width:720px;margin:0 auto}
.consult-h{font-family:var(--H);font-weight:900;font-size:clamp(32px,5vw,56px);text-transform:uppercase;color:var(--K);letter-spacing:-.01em;line-height:1.05;margin-bottom:18px}
.consult-p{font-family:var(--S);font-size:18px;color:rgba(13,12,10,.7);margin-bottom:28px;line-height:1.55}
.btn-dark{display:inline-block;background:var(--K);color:var(--Y);font-family:var(--H);font-weight:700;font-size:15px;letter-spacing:.12em;text-transform:uppercase;padding:18px 36px;transition:.2s}
.btn-dark:hover{background:var(--K2);transform:translateY(-2px)}

/* ── FOOTER ── (matches zetrol-home.html) */
footer{background:var(--K2);color:#fff;border-top:1px solid rgba(255,255,255,.06);padding:64px 40px 32px;font-family:'Barlow',sans-serif;font-weight:300}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:48px;flex-wrap:wrap;gap:32px}
.footer-logo-img{height:48px;width:auto;display:block;margin-bottom:12px}
.footer-tagline{font-size:13px;color:#9A9088;max-width:240px;line-height:1.5}
.footer-links{display:flex;gap:48px;flex-wrap:wrap}
.fl-col{display:flex;flex-direction:column;gap:12px}
.fl-col-h{font-family:var(--H);font-weight:700;font-size:11px;letter-spacing:.15em;text-transform:uppercase;color:#6B6458;margin-bottom:4px}
.fl-col a{font-size:13px;color:#9A9088;transition:.2s}
.fl-col a:hover{color:var(--Y)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.06);padding-top:24px;flex-wrap:wrap;gap:8px}
.f-copy,.f-pow{font-size:11px;color:rgba(255,255,255,.2)}
.f-pow span{color:rgba(240,184,0,.5)}

/* ── RESPONSIVE ── */
@media(max-width:1024px){
  .glance-card{grid-template-columns:repeat(2,1fr)}
  .stages-grid{grid-template-columns:1fr}
  .cv-card{grid-template-columns:1fr}
  .cv-inputs{border-right:none;border-bottom:1px solid rgba(232,145,46,.08)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .guides-row{grid-template-columns:1fr}
  nav{padding:0 20px}
  .nav-links{display:none}
}
@media(max-width:768px){
  .hero-band{min-height:440px}
  .hero-band-inner{padding:0 20px 40px}
  .score-bar{padding:14px 20px;gap:14px}
  .glance,.article,.stages-sec,.carvis-sec,.related-sec,.consult-band,footer{padding-left:20px;padding-right:20px}
  .article{padding-top:48px;padding-bottom:60px}
  h2{font-size:26px}
  .stages-sec{padding:56px 20px}
  .glance-card{grid-template-columns:1fr;padding:24px}
  .footer-top{flex-direction:column}
}

.bottom-tabs{display:none}
@media (max-width:768px){
.bottom-tabs{display:flex;position:fixed;bottom:0;left:0;right:0;z-index:100;background:rgba(13,12,10,.86);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border-top:1px solid rgba(255,255,255,.08);padding-bottom:env(safe-area-inset-bottom);height:calc(56px + env(safe-area-inset-bottom))}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:6px 4px;color:#9A9088;font-family:var(--H);font-weight:600;font-size:9px;letter-spacing:.06em;text-transform:uppercase;transition:color .2s,transform .12s;-webkit-tap-highlight-color:transparent;text-decoration:none}
.tab svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.tab.active{color:var(--Y)}
.tab:active{transform:scale(.92)}
body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}
body.ar .tab{font-family:var(--AR);letter-spacing:0;font-size:11px}
}

/* ───────────────────────────────────────────────────────────────────
   Reset orphan lang-toggle / nav-cta styles — the chrome's nav owns
   these elements. Appended by strip_orphan_nav_css.py. !important
   needed to overpower position:fixed declarations that may slip past
   the rule-stripping pass (pseudo-classes, @media-nested, etc.).
   ─────────────────────────────────────────────────────────────────── */
nav .lang-toggle,
nav .lang-toggle:hover,
nav .lang-toggle:active,
nav .nav-cta {
  position: static !important;
  top: auto !important;
  right: auto !important;
  left: auto !important;
  bottom: auto !important;
  z-index: auto !important;
  margin: 0 !important;
}