/* =========================================================================
   Restoralux — Precision Laser Cleaning
   Shared design system — industrial / technical
   ========================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@400;500;600;700&family=Source+Sans+3:wght@400;500;600;700&family=Spline+Sans+Mono:wght@400;500;600&display=swap');

:root{
  --ink:oklch(0.155 0.012 250);--ink-deep:oklch(0.105 0.012 250);--ink-soft:oklch(0.255 0.012 250);
  --paper:oklch(0.135 0.012 250);--paper-2:oklch(0.185 0.011 250);--card:oklch(0.198 0.011 250);
  --text:oklch(0.945 0.004 250);--text-muted:oklch(0.775 0.008 250);--text-faint:oklch(0.655 0.009 250);
  --on-dark:oklch(0.955 0.004 250);--on-dark-muted:oklch(0.800 0.008 250);--on-dark-faint:oklch(0.680 0.009 250);
  --sky:oklch(0.635 0.150 245);--sky-deep:oklch(0.715 0.135 243);--sky-light:oklch(0.800 0.105 240);
  --accent:oklch(0.665 0.190 46);--accent-deep:oklch(0.735 0.175 52);--accent-glow:oklch(0.800 0.150 62);
  --silver:oklch(0.885 0.004 250);--silver-dim:oklch(0.760 0.005 250);
  --line:oklch(0.315 0.010 250);--line-strong:oklch(0.415 0.010 250);--line-dark:oklch(0.290 0.012 250);
  --grid-light:oklch(0.245 0.012 250);--grid-dark:oklch(0.245 0.012 250);
  --maxw:1320px;--gut:clamp(1.25rem,4vw,3.5rem);
  --disp:'Archivo',system-ui,sans-serif;--sans:'Source Sans 3',system-ui,sans-serif;--mono:'Spline Sans Mono',ui-monospace,monospace;
  --ease:cubic-bezier(0.22,1,0.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);background:var(--paper);color:var(--text);line-height:1.62;font-size:17px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--accent-deep)}
.dark a:hover,.deep a:hover{color:var(--accent-glow)}
::selection{background:var(--accent);color:var(--ink-deep)}

/* ---------- Layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gut)}
.section{padding-block:clamp(4rem,8vw,7.5rem)}
.section--tight{padding-block:clamp(2.75rem,5.5vw,4.5rem)}
.dark{background:var(--ink);color:var(--on-dark)}
.deep{background:var(--ink-deep);color:var(--on-dark)}
.dark .eyebrow,.deep .eyebrow{color:var(--sky-light)}
.pale{background:var(--paper-2)}

/* Blueprint hairline grid — the core surface motif */
.blueprint{position:relative}
.blueprint::before{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(to right,var(--grid-light) 1px,transparent 1px),linear-gradient(to bottom,var(--grid-light) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(to bottom,transparent,#000 12%,#000 88%,transparent)}
.dark.blueprint::before,.deep.blueprint::before{opacity:0.6;background-image:linear-gradient(to right,var(--grid-dark) 1px,transparent 1px),linear-gradient(to bottom,var(--grid-dark) 1px,transparent 1px)}
.blueprint>*{position:relative;z-index:1}

/* ---------- Typography ---------- */
.eyebrow{font-family:var(--mono);font-size:0.7rem;letter-spacing:0.26em;text-transform:uppercase;color:var(--sky-deep);font-weight:500;display:inline-flex;align-items:center;gap:0.7em}
.eyebrow::before{content:"";width:1.6rem;height:1px;background:var(--accent);display:inline-block;flex:none}
.eyebrow--plain::before{display:none}

h1,h2,h3,h4{font-family:var(--disp);font-weight:600;line-height:1.08;letter-spacing:-0.02em;color:var(--silver)}
.display,.h-xl{color:oklch(0.955 0.003 250)}
.display{font-size:clamp(2.7rem,6.4vw,5.4rem);font-weight:600;line-height:0.98;letter-spacing:-0.028em}
.h-xl{font-size:clamp(2.15rem,4.6vw,3.6rem)}
.h-lg{font-size:clamp(1.8rem,3.3vw,2.7rem)}
.h-md{font-size:clamp(1.35rem,2.2vw,1.8rem)}
.h-sm{font-size:clamp(1.1rem,1.6vw,1.3rem);line-height:1.2}
.display em,.h-xl em,.h-lg em{font-style:normal;color:var(--accent-deep)}
.dark .display em,.dark .h-xl em,.dark .h-lg em,.deep .display em{color:var(--accent-glow)}

.lead{font-size:clamp(1.12rem,1.5vw,1.3rem);line-height:1.58;color:var(--text-muted);max-width:62ch}
.dark .lead,.deep .lead{color:var(--on-dark-muted)}
.accent-text{color:var(--sky-deep)}
.dark .accent-text,.deep .accent-text{color:var(--sky-light)}
.measure{max-width:60ch}
.measure-sm{max-width:44ch}
.muted{color:var(--text-muted)}
.dark .muted,.deep .muted{color:var(--on-dark-muted)}
.center{text-align:center}
.nowrap{white-space:nowrap}
.flow>*+*{margin-top:1.1rem}
.flow-lg>*+*{margin-top:1.9rem}
.divider{height:1px;background:var(--line);border:0}
.dark .divider,.deep .divider{background:var(--line-dark)}

/* ---------- Buttons ---------- */
.btn{font-family:var(--mono);font-size:0.78rem;font-weight:500;letter-spacing:0.14em;text-transform:uppercase;display:inline-flex;align-items:center;gap:0.8em;padding:1.15em 1.6em;border:1px solid transparent;cursor:pointer;transition:all 0.35s var(--ease);border-radius:0;background:none}
.btn .arr{transition:transform 0.35s var(--ease)}
.btn:hover .arr{transform:translateX(4px)}
.btn--primary{background:var(--accent);color:var(--ink-deep)}
.btn--primary:hover{background:var(--accent-glow);color:var(--ink-deep)}
.btn--ink{background:var(--silver);color:var(--ink-deep)}
.btn--ink:hover{background:var(--on-dark);color:var(--ink-deep)}
.btn--ghost{border-color:var(--line-strong);color:var(--text)}
.btn--ghost:hover{border-color:var(--silver);background:var(--silver);color:var(--ink-deep)}
.dark .btn--ghost,.deep .btn--ghost{border-color:var(--line-dark);color:var(--on-dark)}
.dark .btn--ghost:hover,.deep .btn--ghost:hover{background:var(--on-dark);color:var(--ink-deep);border-color:var(--on-dark)}

.link-arrow{font-family:var(--mono);font-size:0.75rem;letter-spacing:0.16em;text-transform:uppercase;display:inline-flex;align-items:center;gap:0.7em;color:var(--text);border-bottom:1px solid var(--line-strong);padding-bottom:0.35em;transition:all 0.3s var(--ease)}
.link-arrow:hover{color:var(--accent-deep);border-color:var(--accent);gap:1.1em}
.dark .link-arrow,.deep .link-arrow{color:var(--on-dark);border-color:var(--line-dark)}
.dark .link-arrow:hover,.deep .link-arrow:hover{color:var(--accent-glow);border-color:var(--accent)}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:100;background:color-mix(in oklch,var(--paper) 88%,transparent);backdrop-filter:blur(14px) saturate(1.4);border-bottom:1px solid var(--line);transition:background 0.4s var(--ease),border-color 0.4s var(--ease)}
.site-header.on-dark{background:color-mix(in oklch,var(--ink-deep) 84%,transparent);border-bottom-color:var(--line-dark);color:var(--on-dark)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;height:76px}
.brand{display:flex;align-items:center;gap:0.65rem;line-height:1}
.brand:hover{color:inherit}
.brand-mark{width:34px;height:34px;flex:none;border-radius:50%;overflow:hidden;background:#0d1013}
.brand-mark img{width:100%;height:100%;object-fit:contain}
.brand-name{font-family:var(--disp);font-size:1.02rem;letter-spacing:0.01em;line-height:1.05}
.brand-name b{font-weight:600;display:block;text-transform:uppercase;letter-spacing:0.05em}
.brand-name span{font-family:var(--mono);font-size:0.53rem;letter-spacing:0.3em;text-transform:uppercase;color:var(--text-muted);display:block;margin-top:3px}
.on-dark .brand-name span{color:var(--on-dark-faint)}

.nav-links{display:flex;align-items:center;gap:clamp(0.9rem,1.7vw,1.7rem)}
.nav-links a{font-family:var(--mono);font-size:0.73rem;letter-spacing:0.1em;text-transform:uppercase;position:relative;padding-block:0.45em;color:inherit;opacity:0.72;transition:opacity 0.3s}
.nav-links a:hover,.nav-links a[aria-current="page"]{opacity:1;color:inherit}
.nav-links a[aria-current="page"]::after{content:"";position:absolute;left:0;bottom:-1px;width:100%;height:2px;background:var(--accent)}
.nav-cta{display:flex;align-items:center;gap:1.1rem}
.nav-phone{font-family:var(--mono);font-size:0.79rem;letter-spacing:0.03em;white-space:nowrap}
.nav-phone:hover{color:var(--accent-deep)}
.on-dark .nav-phone:hover{color:var(--accent-glow)}
.nav-toggle{display:none;background:none;border:1px solid currentColor;cursor:pointer;width:40px;height:40px;position:relative;color:inherit;opacity:0.6}
.nav-toggle span{position:absolute;left:10px;right:10px;height:1.5px;background:currentColor;transition:all 0.35s var(--ease)}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:23px}
body.menu-open .nav-toggle span:nth-child(1){top:19px;transform:rotate(45deg)}
body.menu-open .nav-toggle span:nth-child(2){top:19px;transform:rotate(-45deg)}

/* ---------- Mobile menu ---------- */
.mobile-menu{position:fixed;inset:0;z-index:99;background:var(--ink-deep);color:var(--on-dark);padding:100px var(--gut) 2.5rem;display:flex;flex-direction:column;transform:translateY(-100%);transition:transform 0.5s var(--ease);visibility:hidden;overflow-y:auto}
body.menu-open .mobile-menu{transform:translateY(0);visibility:visible}
.mobile-menu a.m-link{font-family:var(--disp);font-size:clamp(1.5rem,6vw,2.2rem);font-weight:500;padding:0.42em 0;border-bottom:1px solid var(--line-dark);display:flex;justify-content:space-between;align-items:center}
.mobile-menu a.m-link:hover{color:var(--accent-glow)}
.mobile-menu a.m-link span{font-family:var(--mono);font-size:0.66rem;color:var(--sky-light);letter-spacing:0.2em}
.mobile-foot{margin-top:auto;padding-top:1.8rem;font-family:var(--mono);font-size:0.76rem;color:var(--on-dark-muted);letter-spacing:0.06em}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink-deep);color:var(--on-dark);padding-top:clamp(3.5rem,6vw,5.5rem)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr 1.2fr;gap:2.8rem 2rem;padding-bottom:3.2rem}
.footer-col h4{font-family:var(--mono);font-size:0.68rem;letter-spacing:0.22em;text-transform:uppercase;color:var(--on-dark-faint);margin-bottom:1.2rem;font-weight:500}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:0.7rem}
.footer-col a,.footer-col li{color:var(--on-dark-muted);font-size:0.92rem;transition:color 0.3s}
.footer-col a:hover{color:var(--accent-glow)}
.footer-brand .brand-name{font-size:1.2rem}
.footer-brand p{color:var(--on-dark-muted);margin-top:1.1rem;max-width:36ch;font-size:0.93rem}
.footer-bar{border-top:1px solid var(--line-dark);padding-block:1.6rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;font-family:var(--mono);font-size:0.72rem;letter-spacing:0.08em;color:var(--on-dark-faint)}

/* ---------- Page head ---------- */
.page-head{padding-block:clamp(3rem,6vw,5.5rem) clamp(2.5rem,5vw,4rem)}
.page-head .display,.page-head .h-xl{margin-top:1.2rem}
.page-head .lead{margin-top:1.5rem}
.crumb{font-family:var(--mono);font-size:0.7rem;letter-spacing:0.16em;text-transform:uppercase;color:var(--on-dark-faint);display:flex;gap:0.6em;align-items:center}
.crumb a:hover{color:var(--accent-glow)}

/* ---------- Kicker ---------- */
.kicker{display:flex;flex-direction:column;gap:1.2rem}
.kicker--center{align-items:center;text-align:center}

/* ---------- Cards & grids ---------- */
.grid{display:grid;gap:1px;background:var(--line)}
.dark .grid,.deep .grid{background:var(--line-dark)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--card);padding:clamp(1.5rem,2.3vw,2.2rem)}
.dark .card,.deep .card{background:var(--ink);color:var(--on-dark)}
.card-num{font-family:var(--mono);font-size:0.7rem;letter-spacing:0.18em;color:var(--accent-deep);display:block;margin-bottom:1.1rem}
.dark .card-num,.deep .card-num{color:var(--accent-glow)}

/* crop-mark frame */
.frame{position:relative}
.frame::before,.frame::after{content:"";position:absolute;width:14px;height:14px;pointer-events:none;z-index:3;border-color:var(--accent)}
.frame::before{top:-1px;left:-1px;border-top:2px solid;border-left:2px solid}
.frame::after{bottom:-1px;right:-1px;border-bottom:2px solid;border-right:2px solid}

/* ---------- Index rows ---------- */
.index-row{display:grid;grid-template-columns:4rem 1fr auto;gap:2rem;align-items:start;padding:clamp(1.6rem,2.8vw,2.5rem) 0;border-top:1px solid var(--line);transition:background 0.4s var(--ease)}
.dark .index-row,.deep .index-row{border-top-color:var(--line-dark)}
.index-row:hover{background:color-mix(in oklch,var(--silver) 5%,transparent)}
.dark .index-row:hover,.deep .index-row:hover{background:color-mix(in oklch,var(--on-dark) 5%,transparent)}
.index-num{font-family:var(--mono);font-size:0.8rem;color:var(--accent-deep);padding-top:0.35rem}
.dark .index-num,.deep .index-num{color:var(--accent-glow)}
.index-cta{align-self:center;white-space:nowrap}
.index-list{border-bottom:1px solid var(--line)}
.dark .index-list,.deep .index-list{border-bottom-color:var(--line-dark)}

/* ---------- Spec table ---------- */
.spec{border-top:1px solid var(--line);width:100%}
.dark .spec,.deep .spec{border-top-color:var(--line-dark)}
.spec-row{display:flex;justify-content:space-between;align-items:baseline;gap:1.5rem;padding:0.95rem 0;border-bottom:1px solid var(--line);font-size:0.94rem}
.dark .spec-row,.deep .spec-row{border-bottom-color:var(--line-dark)}
.spec-k{font-family:var(--mono);font-size:0.72rem;letter-spacing:0.13em;text-transform:uppercase;color:var(--text-muted);flex:none}
.dark .spec-k,.deep .spec-k{color:var(--on-dark-faint)}
.spec-v{text-align:right;font-weight:500}

/* ---------- Ticks ---------- */
.ticks{list-style:none;display:flex;flex-direction:column;gap:0.65rem}
.ticks li{position:relative;padding-left:1.5rem;font-size:0.94rem;color:var(--text-muted)}
.dark .ticks li,.deep .ticks li{color:var(--on-dark-muted)}
.ticks li::before{content:"";position:absolute;left:0;top:0.6em;width:9px;height:1px;background:var(--accent);box-shadow:0 0 0 0 transparent}
.ticks--num{counter-reset:t}
.ticks--num li{counter-increment:t;padding-left:2.2rem}
.ticks--num li::before{content:counter(t,decimal-leading-zero);width:auto;height:auto;background:none;top:0;font-family:var(--mono);font-size:0.7rem;color:var(--accent-deep);letter-spacing:0.1em}

/* ---------- Placeholder imagery ---------- */
.ph{position:relative;background-color:var(--ink-deep);background-image:repeating-linear-gradient(135deg,oklch(0.205 0.012 250) 0 2px,transparent 2px 10px);color:var(--on-dark-muted);overflow:hidden;display:flex;align-items:flex-end}
.ph::after{content:attr(data-label);font-family:var(--mono);font-size:0.7rem;letter-spacing:0.1em;text-transform:uppercase;padding:0.9rem 1rem;color:var(--on-dark-faint);position:relative;z-index:2;line-height:1.4}
.ph::before{content:"";position:absolute;top:0.9rem;left:1rem;width:10px;height:10px;border:1px solid var(--sky);border-radius:50%}
.ph--light{background-color:var(--paper-2);background-image:repeating-linear-gradient(135deg,oklch(0.245 0.012 250) 0 2px,transparent 2px 10px)}
.ph--light::after{color:var(--text-faint)}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border-block:1px solid var(--line)}
.dark .stats,.deep .stats{background:var(--line-dark);border-color:var(--line-dark)}
.stat{background:var(--paper);padding:clamp(1.5rem,2.6vw,2.2rem)}
.dark .stat,.deep .stat{background:var(--ink)}
.stat-num{font-family:var(--disp);font-weight:600;font-size:clamp(2.2rem,4.2vw,3.4rem);line-height:1;letter-spacing:-0.03em}
.stat-num .unit{font-size:0.42em;font-weight:500}
.stat-label{font-family:var(--mono);font-size:0.7rem;letter-spacing:0.13em;text-transform:uppercase;color:var(--text-muted);margin-top:0.7rem}
.dark .stat-label,.deep .stat-label{color:var(--on-dark-faint)}

/* ---------- Tags ---------- */
.tag{font-family:var(--mono);font-size:0.67rem;letter-spacing:0.13em;text-transform:uppercase;border:1px solid var(--line-strong);padding:0.45em 0.8em;color:var(--text-muted);display:inline-block}
.dark .tag,.deep .tag{border-color:var(--line-dark);color:var(--on-dark-muted)}
.tag--accent{border-color:var(--accent);color:var(--accent-deep)}
.dark .tag--accent,.deep .tag--accent{color:var(--accent-glow)}
.tag-row{display:flex;flex-wrap:wrap;gap:0.5rem}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity 0.85s var(--ease),transform 0.85s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:0.07s}
.reveal[data-d="2"]{transition-delay:0.14s}
.reveal[data-d="3"]{transition-delay:0.21s}
.reveal[data-d="4"]{transition-delay:0.28s}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ---------- Laser line ---------- */
.laserline{height:1px;background:var(--line);position:relative;overflow:hidden}
.dark .laserline,.deep .laserline{background:var(--line-dark)}
.laserline::after{content:"";position:absolute;top:0;left:0;height:100%;width:30%;background:linear-gradient(90deg,transparent,var(--accent-glow),transparent);animation:sweep 4.5s var(--ease) infinite}
@keyframes sweep{0%{left:-30%}60%,100%{left:100%}}
@media (prefers-reduced-motion:reduce){.laserline::after{animation:none;opacity:0.5}}

/* ---------- Before / after ---------- */
.ba{position:relative;height:clamp(300px,46vw,560px);overflow:hidden;user-select:none;cursor:ew-resize}
.ba-before,.ba-after{position:absolute;inset:0;height:100%;width:100%}
.ba-after{width:50%;border-right:2px solid var(--accent)}
.ba-after.ph::after,.ba-before.ph::after{white-space:nowrap}
.ba-handle{position:absolute;top:0;left:50%;transform:translateX(-50%);height:100%;width:44px;display:flex;align-items:center;justify-content:center;cursor:ew-resize;z-index:5}
.ba-grip{width:44px;height:44px;background:var(--accent);color:var(--ink-deep);display:flex;align-items:center;justify-content:center;font-size:0.95rem;font-weight:700;letter-spacing:-1px;box-shadow:0 4px 20px rgba(0,0,0,0.35)}
.ba-tag{position:absolute;top:1rem;font-family:var(--mono);font-size:0.66rem;letter-spacing:0.14em;text-transform:uppercase;padding:0.4em 0.7em;background:color-mix(in oklch,var(--ink-deep) 72%,transparent);color:var(--on-dark);z-index:4}
.ba-tag--l{left:1rem}
.ba-tag--r{right:1rem}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line)}
.dark .faq-list,.deep .faq-list{border-top-color:var(--line-dark)}
.faq-item{border-bottom:1px solid var(--line)}
.dark .faq-item,.deep .faq-item{border-bottom-color:var(--line-dark)}
.faq-q{font-family:var(--disp);font-size:clamp(1.05rem,1.7vw,1.3rem);font-weight:500;padding:1.4rem 3rem 1.4rem 0;cursor:pointer;position:relative;display:block;line-height:1.3}
.faq-q::after{content:"+";position:absolute;right:0;top:1.25rem;font-family:var(--mono);font-size:1.2rem;color:var(--accent-deep);transition:transform 0.35s var(--ease)}
.dark .faq-q::after,.deep .faq-q::after{color:var(--accent-glow)}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.45s var(--ease)}
.faq-item.open .faq-a{max-height:560px}
.faq-a p{color:var(--text-muted);padding-bottom:1.5rem;max-width:74ch}
.dark .faq-a p,.deep .faq-a p{color:var(--on-dark-muted)}

/* ---------- Forms ---------- */
.field{display:flex;flex-direction:column;gap:0.5rem}
.field label{font-family:var(--mono);font-size:0.68rem;letter-spacing:0.14em;text-transform:uppercase;color:var(--text-muted)}
.field input,.field select,.field textarea{font-family:var(--sans);font-size:1rem;color:var(--text);background:var(--card);border:1px solid var(--line-strong);padding:0.9em 1em;border-radius:0;transition:border-color 0.3s,box-shadow 0.3s;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in oklch,var(--accent) 22%,transparent)}
.field textarea{resize:vertical;min-height:130px}

/* ---------- Filter tabs ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:0.5rem}
.tab{font-family:var(--mono);font-size:0.7rem;letter-spacing:0.13em;text-transform:uppercase;padding:0.6em 1em;border:1px solid var(--line-strong);background:none;cursor:pointer;color:var(--text-muted);transition:all 0.3s var(--ease)}
.tab:hover{border-color:var(--silver);color:var(--text)}
.tab[aria-selected="true"]{background:var(--silver);border-color:var(--silver);color:var(--ink-deep)}

/* ---------- Responsive ---------- */
@media (max-width:1180px){.nav-links{gap:0.85rem}.nav-links a{font-size:0.68rem}.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr}}
@media (max-width:1040px){.nav-links,.nav-phone,.nav-cta{display:none}.nav-toggle{display:block}}
@media (max-width:940px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.grid-2{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .index-row{grid-template-columns:2.5rem 1fr}
  .index-row .index-cta{grid-column:2}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:600px){
  body{font-size:16px}
  .grid-4{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:2.2rem}
  .spec-row{flex-direction:column;gap:0.3rem}
  .spec-v{text-align:left}
}

/* ---------- Social ---------- */
.social{margin-top:1.8rem}
.social-row{display:flex;gap:0.5rem;flex-wrap:wrap}
.social-row a{font-family:var(--mono);font-size:0.72rem;letter-spacing:0.12em;text-transform:uppercase;border:1px solid var(--line-dark);color:var(--on-dark-muted);min-width:2.6rem;height:2.6rem;padding-inline:0.7em;display:inline-flex;align-items:center;justify-content:center;transition:all 0.3s var(--ease)}
.social-row a:hover{border-color:var(--accent);color:var(--accent-glow)}