/* ============================================================
   IDEAL Conditioner — "CLINICAL PERFORMANCE" variant
   Technical, results-driven glass-care product.
   White base · electric cobalt accents · engineered grid.
   ============================================================ */

:root{
  --ink:#0a1424;          /* near-black navy text */
  --ink-2:#41506b;        /* secondary text */
  --line:#dde4ef;         /* hairline */
  --line-2:#eef2f8;
  --paper:#ffffff;
  --panel:#f5f8fd;        /* clinical off-white panel */
  --panel-2:#eef3fb;
  --blue:#0047ff;         /* electric cobalt */
  --blue-d:#0035c4;
  --blue-l:#e7eeff;
  --cyan:#00b6e6;         /* secondary lab accent */
  --good:#0aa66e;         /* spec checkmark green */
  --bad:#e23a4e;          /* before / fail red */
  --amber:#f5a300;
  --grid:rgba(0,71,255,.05);
  --shadow:0 1px 0 rgba(10,20,36,.04), 0 18px 40px -24px rgba(10,30,90,.22);
  --shadow-sm:0 1px 2px rgba(10,20,36,.05), 0 8px 22px -16px rgba(10,30,90,.18);
  --radius:14px;
  --radius-sm:9px;
  --mono:"Space Grotesk", ui-monospace, "SF Mono", Menlo, monospace;
  --sans:"Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --wrap:1180px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;font-family:var(--sans);color:var(--ink);background:var(--paper);
  line-height:1.6;-webkit-font-smoothing:antialiased;
  font-feature-settings:"cv11","ss01";
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;line-height:1.08;letter-spacing:-.02em;font-weight:700}
p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
section{padding:88px 0}

/* technical labels */
.kicker{
  font-family:var(--mono);font-size:.72rem;font-weight:600;letter-spacing:.22em;
  text-transform:uppercase;color:var(--blue);display:inline-flex;align-items:center;gap:8px;
}
.kicker::before{content:"";width:18px;height:2px;background:var(--blue);display:inline-block}
.kicker.light{color:#a9c4ff}
.kicker.light::before{background:#a9c4ff}

.sec-head{max-width:680px;margin:0 0 44px}
.sec-head h2{font-size:clamp(1.9rem,3.4vw,2.7rem);margin:14px 0 12px}
.sec-head p{color:var(--ink-2);font-size:1.06rem;max-width:560px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;justify-content:center;
  font-family:var(--mono);font-weight:600;font-size:.82rem;letter-spacing:.04em;
  text-transform:uppercase;cursor:pointer;border:1px solid transparent;
  padding:13px 22px;border-radius:8px;transition:.18s ease;white-space:nowrap;
}
.btn .arr{transition:transform .18s ease}
.btn:hover .arr{transform:translateX(4px)}
.btn.blue{background:var(--blue);color:#fff;box-shadow:0 10px 24px -12px rgba(0,71,255,.7)}
.btn.blue:hover{background:var(--blue-d);transform:translateY(-1px)}
.btn.dark{background:var(--ink);color:#fff}
.btn.dark:hover{background:#16233e;transform:translateY(-1px)}
.btn.line{background:#fff;color:var(--ink);border-color:var(--line)}
.btn.line:hover{border-color:var(--blue);color:var(--blue)}
.btn.ghost-light{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.25)}
.btn.ghost-light:hover{background:rgba(255,255,255,.16)}
.btn.lg{padding:16px 28px;font-size:.86rem}
.btn.full{width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.85);
  backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line-2);
  transition:box-shadow .2s,border-color .2s;
}
.site-header.scrolled{box-shadow:0 1px 0 var(--line),0 10px 30px -22px rgba(10,30,90,.35)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:1.05rem;letter-spacing:-.02em}
.brand .mark{
  width:30px;height:30px;border-radius:7px;display:grid;place-items:center;flex:0 0 auto;
  background:var(--blue);color:#fff;font-family:var(--mono);font-weight:700;font-size:.95rem;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);
}
.brand b{color:var(--blue)}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{font-size:.92rem;font-weight:500;color:var(--ink-2);transition:color .15s;position:relative}
.nav-links a:hover{color:var(--ink)}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-phone{font-family:var(--mono);font-size:.82rem;font-weight:600;color:var(--ink);display:flex;align-items:center;gap:6px}
.nav-phone .dot{width:7px;height:7px;border-radius:50%;background:var(--good);box-shadow:0 0 0 3px rgba(10,166,110,.18)}

.menu-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.menu-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;padding:64px 0 72px;
  background:
    linear-gradient(180deg,#fff 0%,var(--panel) 100%);
}
.hero::before{ /* technical gridlines */
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),
                   linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:46px 46px;mask:linear-gradient(180deg,#000,transparent 80%);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
.hero h1{font-size:clamp(2.3rem,4.6vw,3.55rem);margin:18px 0 18px}
.hero h1 em{font-style:normal;color:var(--blue);position:relative}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.12em;background:var(--blue-l);z-index:-1}
.lead{font-size:1.12rem;color:var(--ink-2);max-width:520px}
.hero-cta{display:flex;gap:12px;margin:28px 0 26px;flex-wrap:wrap}
.hero-trust{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:.86rem;color:var(--ink-2)}
.stars{color:var(--amber);letter-spacing:2px;font-size:1rem}

/* hero spec rail */
.spec-rail{display:flex;gap:0;margin-top:30px;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.spec-rail .sp{flex:1;padding:14px 16px;border-right:1px solid var(--line-2)}
.spec-rail .sp:last-child{border-right:0}
.spec-rail .v{font-family:var(--mono);font-weight:700;font-size:1.25rem;color:var(--blue);line-height:1}
.spec-rail .l{font-size:.72rem;color:var(--ink-2);margin-top:5px;letter-spacing:.02em}

/* hero art — product on a "lab platform" */
.hero-art{position:relative}
.art-frame{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow);overflow:hidden;
}
.art-frame::before{ /* corner crops */
  content:"";position:absolute;inset:12px;border:1px dashed var(--line);border-radius:8px;pointer-events:none;
}
.art-frame img{margin:0 auto;border-radius:8px;max-height:420px;width:auto}
.art-tag{
  position:absolute;font-family:var(--mono);font-size:.7rem;font-weight:600;letter-spacing:.06em;
  background:var(--ink);color:#fff;padding:6px 11px;border-radius:6px;z-index:3;
}
.art-tag.t1{top:22px;left:22px;background:var(--blue)}
.art-tag.t2{bottom:22px;right:22px}
/* beading diagram chip */
.bead-chip{
  position:absolute;right:-14px;top:32%;background:#fff;border:1px solid var(--line);
  border-radius:11px;padding:12px 14px;box-shadow:var(--shadow-sm);z-index:4;width:150px;
}
.bead-chip .cap{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;color:var(--ink-2);text-transform:uppercase}
.bead-svg{margin:8px 0 6px}
.bead-chip .ang{font-family:var(--mono);font-weight:700;color:var(--blue);font-size:1.05rem}

/* ---------- ticker strip ---------- */
.strip{background:var(--ink);color:#fff;overflow:hidden;padding:0;border-block:1px solid #16233e}
.strip-track{display:flex;white-space:nowrap;will-change:transform;animation:slide 32s linear infinite}
@media (prefers-reduced-motion:reduce){.strip-track{animation:none;white-space:normal;flex-wrap:wrap}}
.strip-track span{display:inline-flex;align-items:center;padding:13px 0;font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase}
.strip-track i{margin:0 26px;color:var(--cyan);font-style:normal}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- performance / proof ---------- */
.perf{background:var(--paper)}
.perf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.perf-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;
  position:relative;transition:.2s;
}
.perf-card:hover{border-color:var(--blue);box-shadow:var(--shadow-sm);transform:translateY(-2px)}
.perf-card .num{font-family:var(--mono);font-size:.72rem;color:var(--blue);letter-spacing:.1em}
.perf-card .ic{
  width:46px;height:46px;border-radius:10px;background:var(--blue-l);display:grid;place-items:center;
  margin:14px 0 16px;color:var(--blue);
}
.perf-card h3{font-size:1.18rem;margin-bottom:8px}
.perf-card p{color:var(--ink-2);font-size:.96rem}

/* before / after comparison */
.compare{background:var(--panel)}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;box-shadow:var(--shadow)}
.cmp{padding:34px 30px;position:relative}
.cmp.before{background:linear-gradient(180deg,#fff, #fff7f7)}
.cmp.after{background:linear-gradient(180deg,#fff,#f3fbf7);border-left:1px solid var(--line)}
.cmp .badge{font-family:var(--mono);font-size:.7rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:5px 10px;border-radius:5px;display:inline-block}
.cmp.before .badge{background:#fde7ea;color:var(--bad)}
.cmp.after .badge{background:#dcf5ea;color:var(--good)}
.cmp h3{font-size:1.3rem;margin:14px 0 16px}
/* visual: glass pane with droplets */
.pane{height:170px;border-radius:10px;position:relative;overflow:hidden;border:1px solid var(--line);background:linear-gradient(135deg,#eef4fb,#dde9f6)}
.pane.spotty::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle 6px at 20% 30%,rgba(120,140,170,.55),transparent 60%),
                   radial-gradient(circle 9px at 60% 55%,rgba(120,140,170,.5),transparent 62%),
                   radial-gradient(circle 5px at 80% 25%,rgba(120,140,170,.5),transparent 60%),
                   radial-gradient(circle 11px at 38% 72%,rgba(120,140,170,.45),transparent 62%),
                   radial-gradient(circle 4px at 72% 80%,rgba(120,140,170,.5),transparent 60%),
                   radial-gradient(circle 7px at 50% 22%,rgba(120,140,170,.45),transparent 60%);
}
.pane.clear::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,transparent 40%,rgba(255,255,255,.65) 50%,transparent 60%);
}
.pane.clear .bead{position:absolute;border-radius:50%;background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.95),rgba(0,71,255,.18));box-shadow:0 2px 5px rgba(0,71,255,.18)}
.cmp ul{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:9px}
.cmp li{display:flex;gap:9px;font-size:.92rem;color:var(--ink-2)}
.cmp.before li::before{content:"✕";color:var(--bad);font-weight:700}
.cmp.after li::before{content:"✓";color:var(--good);font-weight:700}

/* ---------- products ---------- */
.products{background:var(--paper)}
.prod-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.card{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;
  display:flex;flex-direction:column;transition:.2s;
}
.card:hover{border-color:var(--blue);box-shadow:var(--shadow)}
.card-media{position:relative;background:linear-gradient(160deg,var(--panel),#fff);padding:26px;display:grid;place-items:center;min-height:230px;border-bottom:1px solid var(--line-2)}
.card-media img{max-height:200px;width:auto}
.card-media::before{ /* gridline */
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:30px 30px;
}
.chip{position:absolute;z-index:2;font-family:var(--mono);font-size:.66rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:5px 9px;border-radius:5px}
.chip.tag{top:16px;left:16px;background:var(--ink);color:#fff}
.chip.save{top:16px;right:16px;background:var(--good);color:#fff}
.card-body{padding:24px;display:flex;flex-direction:column;gap:14px;flex:1}
.card-body h3{font-size:1.35rem}
.card-body .desc{color:var(--ink-2);font-size:.96rem;flex:0}
.mini-spec{display:flex;gap:7px;flex-wrap:wrap;margin-top:2px}
.mini-spec span{font-family:var(--mono);font-size:.66rem;letter-spacing:.04em;color:var(--blue);background:var(--blue-l);padding:4px 8px;border-radius:5px}
.price{display:flex;align-items:baseline;gap:10px;margin-top:auto}
.price .now{font-family:var(--mono);font-weight:700;font-size:1.65rem;color:var(--ink)}
.price .was{color:var(--ink-2);text-decoration:line-through;font-size:.95rem}
.price .unit{margin-left:auto;font-size:.78rem;color:var(--ink-2);font-family:var(--mono)}
.card-actions{display:flex;gap:10px}
.card-actions .btn{flex:1}

/* ---------- split / system ---------- */
.system{background:var(--panel)}
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:50px;align-items:center}
.split-media{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.split-media img{border-radius:8px;margin:0 auto}
.split-media .art-tag{top:18px;left:18px;background:var(--blue)}
.split h2{font-size:clamp(1.8rem,3.2vw,2.5rem);margin:14px 0 14px}
.split>div>p{color:var(--ink-2);font-size:1.05rem}
.kit-list{list-style:none;padding:0;margin:22px 0;display:grid;gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.kit-list li{display:flex;gap:14px;padding:15px 18px;border-bottom:1px solid var(--line-2);align-items:flex-start}
.kit-list li:last-child{border-bottom:0}
.kit-list .k-ic{flex:0 0 auto;width:26px;height:26px;border-radius:7px;background:var(--good);color:#fff;display:grid;place-items:center;font-size:.8rem;font-weight:700;margin-top:1px}
.kit-list b{display:block;font-size:.96rem}
.kit-list span{color:var(--ink-2);font-size:.9rem}

/* ---------- band / testimonial ---------- */
.band{background:var(--ink);color:#fff;position:relative;overflow:hidden;text-align:center}
.band::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:46px 46px}
.band .wrap{position:relative;max-width:760px}
.band .stars{font-size:1.3rem;display:block;margin-bottom:18px}
.band .quote{font-size:clamp(1.4rem,2.8vw,2rem);font-weight:600;letter-spacing:-.02em;line-height:1.3}
.band .who{margin-top:20px;font-family:var(--mono);font-size:.82rem;letter-spacing:.06em;color:#9fb6e8;text-transform:uppercase}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
.faq-list{display:grid;gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.faq{border-bottom:1px solid var(--line-2)}
.faq:last-child{border-bottom:0}
.faq summary{cursor:pointer;list-style:none;padding:20px 22px;display:flex;justify-content:space-between;align-items:center;gap:16px;font-weight:600;font-size:1.02rem}
.faq summary::-webkit-details-marker{display:none}
.faq .pm{flex:0 0 auto;width:24px;height:24px;border:1px solid var(--line);border-radius:6px;display:grid;place-items:center;color:var(--blue);font-family:var(--mono);transition:.2s}
.faq[open] .pm{background:var(--blue);color:#fff;border-color:var(--blue);transform:rotate(45deg)}
.faq .ans{padding:0 22px 22px;color:var(--ink-2);font-size:.96rem;max-width:640px}

/* ---------- final CTA ---------- */
.cta-final{background:linear-gradient(180deg,var(--panel),#fff);text-align:center}
.cta-final .wrap{max-width:680px}
.cta-final h2{font-size:clamp(2rem,3.6vw,2.8rem);margin:14px 0 14px}
.cta-final p{color:var(--ink-2);font-size:1.08rem;margin-bottom:26px}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#c4d2ee;padding:64px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.foot-brand .brand{color:#fff;margin-bottom:14px}
.foot-brand p{font-size:.92rem;color:#9fb0d2;max-width:300px}
.foot-col h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:#7f93bd;margin-bottom:14px}
.foot-col a{display:block;font-size:.92rem;color:#c4d2ee;padding:5px 0;transition:color .15s}
.foot-col a:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:44px;padding-top:22px;border-top:1px solid #1c2b48;font-size:.8rem;color:#7f93bd;font-family:var(--mono);letter-spacing:.03em}

/* ---------- sub-page header band ---------- */
.page-head{background:linear-gradient(180deg,#fff,var(--panel));border-bottom:1px solid var(--line);padding:54px 0 0;position:relative;overflow:hidden}
.page-head::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:46px 46px;mask:linear-gradient(180deg,#000,transparent)}
.page-head .wrap{position:relative}
.crumb{font-family:var(--mono);font-size:.74rem;color:var(--ink-2);letter-spacing:.06em}
.crumb a:hover{color:var(--blue)}

/* product detail */
.pdp{padding:48px 0 88px}
.pdp-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
.pdp-media{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);position:sticky;top:90px}
.pdp-media::before{content:"";position:absolute;inset:14px;border:1px dashed var(--line);border-radius:8px;pointer-events:none}
.pdp-media img{margin:0 auto;max-height:440px;width:auto;position:relative}
.pdp h1{font-size:clamp(2rem,4vw,2.8rem);margin:12px 0 14px}
.pdp .price{margin:18px 0 22px}
.pdp .price .now{font-size:2rem}
.pdp .lead{font-size:1.08rem;margin-bottom:8px}
.spec-list{list-style:none;padding:0;margin:24px 0;display:grid;gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#fff}
.spec-list li{display:flex;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line-2);align-items:flex-start}
.spec-list li:last-child{border-bottom:0}
.spec-list .ck{flex:0 0 auto;width:22px;height:22px;border-radius:6px;background:var(--good);color:#fff;display:grid;place-items:center;font-size:.75rem;font-weight:700}
.spec-list b{color:var(--ink)}
.datasheet{margin-top:26px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.datasheet .ds-head{background:var(--panel);padding:12px 18px;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-2);border-bottom:1px solid var(--line)}
.datasheet table{width:100%;border-collapse:collapse}
.datasheet td{padding:12px 18px;border-bottom:1px solid var(--line-2);font-size:.92rem}
.datasheet tr:last-child td{border-bottom:0}
.datasheet td:first-child{color:var(--ink-2);font-family:var(--mono);font-size:.78rem;width:42%}
.datasheet td:last-child{font-weight:600}
.note{font-size:.86rem;color:var(--ink-2);background:var(--blue-l);border-left:3px solid var(--blue);padding:12px 16px;border-radius:0 8px 8px 0;margin-top:8px}

/* contact / about */
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.info-card{border:1px solid var(--line);border-radius:var(--radius);padding:28px;background:#fff}
.info-card h3{font-size:1.2rem;margin-bottom:10px}
.info-card p{color:var(--ink-2);font-size:.96rem}
.info-card .big{font-family:var(--mono);font-weight:700;font-size:1.5rem;color:var(--blue);margin:6px 0;display:block}
.loc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:8px}
.loc{border:1px solid var(--line);border-radius:12px;padding:20px;background:#fff}
.loc .lbl{font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--blue)}
.loc h4{font-size:1.1rem;margin:6px 0}
.loc p{font-size:.9rem;color:var(--ink-2)}
.prose{max-width:680px}
.prose p{color:var(--ink-2);font-size:1.05rem;margin-bottom:18px}
.prose h2{font-size:1.6rem;margin:34px 0 14px}

.surfaces{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}
.surfaces span{font-family:var(--mono);font-size:.74rem;letter-spacing:.03em;border:1px solid var(--line);background:#fff;padding:7px 12px;border-radius:7px;color:var(--ink)}
.surfaces span::before{content:"✓ ";color:var(--good);font-weight:700}

/* ---------- checkout modal ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none}
.modal.open{display:block}
.modal-overlay{position:absolute;inset:0;background:rgba(10,20,36,.62);backdrop-filter:blur(3px)}
.modal-panel{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:min(560px,94vw);max-height:92vh;background:#fff;border-radius:14px;overflow:hidden;
  display:flex;flex-direction:column;box-shadow:0 30px 80px -20px rgba(10,30,90,.5);
  border:1px solid var(--line);
}
.modal-top{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line);background:var(--panel)}
.mt-title{display:flex;align-items:center;gap:10px;font-family:var(--mono);font-weight:600;font-size:.9rem;letter-spacing:.02em}
.mt-title .dot{width:9px;height:9px;border-radius:50%;background:var(--good);box-shadow:0 0 0 4px rgba(10,166,110,.18)}
.secure{font-family:var(--mono);font-size:.72rem;color:var(--ink-2);letter-spacing:.04em}
.modal-close{background:none;border:1px solid var(--line);width:30px;height:30px;border-radius:7px;font-size:1.2rem;line-height:1;cursor:pointer;color:var(--ink-2);transition:.15s}
.modal-close:hover{border-color:var(--bad);color:var(--bad)}
.modal-frame{position:relative;flex:1;min-height:60vh;background:#fff}
.modal-frame iframe{width:100%;height:100%;min-height:60vh;border:0;display:block}
.modal-loading{position:absolute;inset:0;display:grid;place-items:center;background:#fff;text-align:center;color:var(--ink-2);font-family:var(--mono);font-size:.85rem}
.spin{width:34px;height:34px;border:3px solid var(--blue-l);border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto}
@keyframes spin{to{transform:rotate(360deg)}}
.modal-foot{padding:12px 18px;border-top:1px solid var(--line);font-size:.8rem;color:var(--ink-2);text-align:center;background:var(--panel)}
.modal-foot a{color:var(--blue);font-weight:600}

/* ---------- progressive reveal (opt-in) ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  section{padding:64px 0}
  .hero-grid,.split,.pdp-grid,.faq-wrap{grid-template-columns:1fr;gap:34px}
  .perf-grid,.loc-grid{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr}
  .cmp.after{border-left:0;border-top:1px solid var(--line)}
  .prod-grid,.info-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .pdp-media{position:static}
  .bead-chip{display:none}
  .nav-links{
    position:absolute;top:68px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:flex-start;gap:0;padding:8px 24px 16px;display:none;
    box-shadow:var(--shadow);
  }
  .nav-links.show{display:flex}
  .nav-links a{padding:11px 0;width:100%;border-bottom:1px solid var(--line-2)}
  .menu-toggle{display:flex}
  .nav-phone{display:none}
  .spec-rail{flex-wrap:wrap}
  .spec-rail .sp{flex:1 0 50%;border-bottom:1px solid var(--line-2)}
}
@media (max-width:560px){
  .foot-grid{grid-template-columns:1fr}
  .hero-cta{flex-direction:column}
  .hero-cta .btn{width:100%}
}