/* =========================================================
   FRIMESA — Frigorífico Metropolitano
   Design system: "Cadena de frío bajo control"
   Palette: graphite/steel darks, frost light, ice-cyan readout accent
   Type: Space Grotesk (display) · Inter (body) · IBM Plex Mono (data)
   ========================================================= */

:root{
  --graphite: #0A1720;
  --steel:    #12293A;
  --steel-2:  #1B3A50;
  --frost:    #F3F7F9;
  --paper:    #FFFFFF;
  --ice:      #4FD8E8;
  --ice-dim:  #2C9FB0;
  --signal:   #1E6FA8;
  --signal-2: #2E86C9;
  --muted:    #6F8792;
  --muted-lt: #A9BDC6;
  --ink:      #16262E;
  --heat:     #E85D2C;
  --line:     rgba(255,255,255,0.10);
  --line-dk:  rgba(10,23,32,0.10);

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --container: 1220px;
  --radius: 14px;
  --radius-sm: 8px;
  --ease: cubic-bezier(.16,.84,.44,1);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,h5,h6{ font-family: var(--font-display); margin:0; color: var(--graphite); }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

.container{ max-width: var(--container); margin:0 auto; padding: 0 24px; }

:focus-visible{ outline: 2px solid var(--ice); outline-offset: 3px; }

/* ---------- Reveal-on-scroll ---------- */
.reveal{ opacity:0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible{ opacity:1; transform:none; }
.reveal-stagger > *{ transition-delay: calc(var(--i,0) * 90ms); }

/* ---------- Eyebrow / label ---------- */
.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ice-dim);
  display:inline-flex;
  align-items:center;
  gap:10px;
  margin-bottom: 18px;
}
.eyebrow::before{
  content:"";
  width: 26px; height:1px;
  background: var(--ice-dim);
}
.eyebrow.on-dark{ color: var(--ice); }
.eyebrow.on-dark::before{ background: var(--ice); }

.section-head{ max-width: 640px; margin-bottom: 52px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2{
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}
.section-head p{ color: var(--muted); font-size: 1.02rem; }

section{ position: relative; }
.pad{ padding: 108px 0; }
@media (max-width: 782px){ .pad{ padding: 72px 0; } }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 15px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all .3s var(--ease);
  white-space: nowrap;
}
.btn-primary{ background: var(--ice); color: var(--graphite); font-weight:600; }
.btn-primary:hover{ background: var(--paper); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(79,216,232,.25); }
.btn-ghost{ border-color: var(--line); color: var(--paper); }
.btn-ghost:hover{ border-color: var(--ice); color: var(--ice); }
.btn-ghost.on-light{ border-color: var(--line-dk); color: var(--ink); }
.btn-ghost.on-light:hover{ border-color: var(--signal); color: var(--signal); }
.btn svg{ width:14px; height:14px; transition: transform .3s var(--ease); }
.btn:hover svg{ transform: translateX(3px); }

/* =========================================================
   NAVBAR
   ========================================================= */
.nav{
  position: fixed; top:0; left:0; right:0; z-index: 500;
  padding: 22px 0;
  transition: all .4s var(--ease);
}
.nav.scrolled{
  padding: 13px 0;
  background: rgba(10,23,32,0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav .container{ display:flex; align-items:center; justify-content:space-between; gap: 24px; }

.brand{ display:flex; align-items:center; gap:14px; }
.brand-logo{ height: 38px; width:auto; flex-shrink:0; display:block; }
.brand-sub{ display:block; font-family: var(--font-mono); font-size:0.6rem; letter-spacing:0.13em; color: var(--muted-lt); text-transform: uppercase; padding-left:14px; border-left:1px solid var(--line); line-height:1.3; max-width:110px; }
@media (max-width: 560px){ .brand-sub{ display:none; } }

.nav-links{ display:flex; align-items:center; gap: 6px; }
.nav-links a{
  font-size: 0.86rem; color: var(--muted-lt); padding: 10px 15px; border-radius: 999px;
  transition: all .25s var(--ease);
}
.nav-links a:hover{ color: var(--paper); background: rgba(255,255,255,0.06); }

.nav-actions{ display:flex; align-items:center; gap:12px; }
.lang-btn{
  font-family: var(--font-mono); font-size:0.74rem; letter-spacing:0.06em;
  color: var(--muted-lt); background: transparent; border: 1px solid var(--line);
  border-radius: 999px; padding: 8px 14px; transition: all .25s var(--ease);
}
.lang-btn:hover{ color: var(--ice); border-color: var(--ice); }

.nav-toggle{
  display:none; flex-direction:column; gap:5px; background:none; border:none; padding: 6px;
}
.nav-toggle span{ width: 22px; height: 2px; background: var(--paper); transition: all .3s var(--ease); }

@media (max-width: 992px){
  .nav-links{
    position: fixed; inset: 0 0 0 auto; width: min(320px, 82vw); height:100vh;
    background: var(--graphite); flex-direction: column; align-items: flex-start;
    padding: 100px 32px 32px; gap:4px; transform: translateX(100%);
    transition: transform .45s var(--ease); border-left:1px solid var(--line);
  }
  .nav-links.open{ transform: translateX(0); }
  .nav-links a{ width:100%; padding: 14px 15px; font-size: 1rem; }
  .nav-toggle{ display:flex; }
}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  background: linear-gradient(175deg, var(--graphite) 0%, var(--steel) 78%, var(--steel-2) 100%);
  padding: 168px 0 96px;
  position: relative;
  overflow: hidden;
}
.hero::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 60% at 30% 20%, black 10%, transparent 70%);
  opacity: .5;
  pointer-events: none;
}
.hero-grid{
  display:grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items:center;
  position:relative; z-index:2;
}
.hero-copy h1{
  font-size: clamp(2.3rem, 4.6vw, 3.6rem);
  font-weight: 600; line-height: 1.08; letter-spacing:-0.015em;
  color: var(--paper); margin-bottom: 22px;
}
.hero-copy h1 em{ font-style: normal; color: var(--ice); }
.hero-copy p.lead{
  color: var(--muted-lt); font-size: 1.08rem; max-width: 490px; margin-bottom: 34px;
}
.hero-ctas{ display:flex; gap:14px; flex-wrap:wrap; margin-bottom: 44px; }

.hero-tags{ display:flex; gap: 22px; flex-wrap:wrap; }
.hero-tag{ display:flex; align-items:center; gap:9px; }
.hero-tag .dot{ width:7px; height:7px; border-radius:50%; background: var(--ice); box-shadow: 0 0 0 4px rgba(79,216,232,.15); }
.hero-tag span{ font-family: var(--font-mono); font-size:0.76rem; color: var(--muted-lt); letter-spacing: 0.02em; }

/* --- Monitor panel: signature element --- */
.panel{
  position: relative; border-radius: var(--radius);
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
  padding: 14px;
  box-shadow: 0 40px 90px -30px rgba(0,0,0,.55);
}
.panel-frame{ position:relative; border-radius: 9px; overflow:hidden; aspect-ratio: 4/3; }
.panel-frame img{ width:100%; height:100%; object-fit:cover; filter: grayscale(.5) contrast(1.08) brightness(.85); }
.panel-frame::after{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(160deg, rgba(30,111,168,.55), rgba(10,23,32,.15) 45%, rgba(79,216,232,.35));
  mix-blend-mode: color;
}
.panel-frame::before{
  content:"";
  position:absolute; inset:0; z-index:2;
  background: repeating-linear-gradient(180deg, rgba(255,255,255,0.05) 0px, rgba(255,255,255,0.05) 1px, transparent 1px, transparent 3px);
  opacity: .4;
}
.panel-cap{
  position:absolute; top:12px; left:12px; z-index:3;
  font-family: var(--font-mono); font-size: 0.64rem; letter-spacing:.08em; text-transform:uppercase;
  color: var(--paper); background: rgba(10,23,32,0.55); backdrop-filter: blur(4px);
  padding: 6px 10px; border-radius: 999px; border:1px solid rgba(255,255,255,.18);
  display:flex; align-items:center; gap:7px;
}
.panel-cap .dot{ width:6px;height:6px;border-radius:50%; background: var(--ice); }
.panel-readouts{ display:grid; grid-template-columns: repeat(3,1fr); gap:1px; background: var(--line); margin-top:14px; border-radius: 9px; overflow:hidden; }
.readout{ background: var(--steel); padding: 15px 14px; }
.readout .val{ font-family: var(--font-mono); color: var(--ice); font-size:1.15rem; font-weight:500; }
.readout .lbl{ font-family: var(--font-mono); color: var(--muted-lt); font-size:0.62rem; letter-spacing:.05em; text-transform:uppercase; margin-top:4px; }

/* ---------- Gauge rail (signature, desktop only) ---------- */
.gauge-rail{
  position: fixed; right: 26px; top: 50%; transform: translateY(-50%);
  z-index: 400; display:flex; flex-direction:column; align-items:center; gap:0;
  font-family: var(--font-mono);
  opacity: 0; pointer-events:none; transition: opacity .5s var(--ease);
}
.gauge-rail.show{ opacity:1; }
.gauge-rail .g-top,.gauge-rail .g-bot{ font-size:0.62rem; color: var(--muted-lt); letter-spacing:.05em; padding: 6px 0; }
.gauge-track{ position:relative; width:2px; height: 220px; background: var(--line); border-radius:2px; }
.gauge-track .g-fill{ position:absolute; left:0; top:0; width:100%; background: linear-gradient(180deg, var(--ice), var(--signal)); border-radius:2px; transition: height .15s linear; }
.gauge-track .g-marker{
  position:absolute; left:50%; top:0; transform: translate(-50%,-50%);
  width:13px; height:13px; border-radius:50%; background: var(--graphite); border:2px solid var(--ice);
  box-shadow: 0 0 0 5px rgba(79,216,232,.15); transition: top .15s linear;
}
.gauge-zone{ font-size:0.6rem; color: var(--paper); background: rgba(10,23,32,.9); border:1px solid var(--line); padding:5px 9px; border-radius:6px; margin-top:12px; white-space:nowrap; }
@media (max-width: 1200px){ .gauge-rail{ display:none; } }

@media (max-width: 992px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero{ padding-top: 132px; }
}

/* =========================================================
   STATS STRIP
   ========================================================= */
.stats{
  background: var(--graphite); position:relative; padding: 54px 0;
  background-image: linear-gradient(rgba(10,23,32,.94), rgba(10,23,32,.97)), url('../images/texture-ice.jpg');
  background-size: cover; background-position: center;
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
}
.stats-grid{ display:grid; grid-template-columns: repeat(6,1fr); gap: 8px; }
.stat{ text-align:center; padding: 10px 6px; }
.stat .num{ font-family: var(--font-mono); font-size: clamp(1.5rem,2.6vw,2.1rem); color: var(--ice); font-weight:500; }
.stat .lbl{ font-size:0.75rem; color: var(--muted-lt); margin-top:6px; line-height:1.35; }
@media (max-width: 900px){ .stats-grid{ grid-template-columns: repeat(3,1fr); gap: 26px 8px; } }

/* =========================================================
   ABOUT
   ========================================================= */
.about-grid{ display:grid; grid-template-columns: 0.85fr 1.15fr; gap: 64px; align-items:center; }
.about-media{ position:relative; }
.about-media .main-img{ border-radius: var(--radius); overflow:hidden; box-shadow: 0 30px 60px -25px rgba(10,30,40,.35); }
.about-media .main-img img{ aspect-ratio: 4/5; object-fit:cover; }
.about-media .float-card{
  position:absolute; bottom: -28px; left: -28px; width: 54%;
  border-radius: var(--radius-sm); overflow:hidden; border: 5px solid var(--paper);
  box-shadow: 0 20px 40px -18px rgba(10,30,40,.4);
}
.about-media .float-card img{ aspect-ratio: 4/3; object-fit:cover; }
.about-body p{ color: var(--muted); margin-bottom: 18px; font-size: 1.01rem; }
.badge-row{ display:flex; gap:10px; flex-wrap:wrap; margin: 26px 0 34px; }
.badge{
  display:inline-flex; align-items:center; gap:8px;
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing:.03em;
  padding: 9px 15px; border-radius: 999px; background: var(--frost); color: var(--signal);
  border:1px solid rgba(30,111,168,.18);
}
.badge svg{ width:13px; height:13px; }

.pillars{ display:grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.pillar{ padding: 26px 22px; border-radius: var(--radius-sm); background: var(--frost); }
.pillar .icon{ width:42px; height:42px; border-radius:10px; background: var(--graphite); display:flex; align-items:center; justify-content:center; margin-bottom:16px; }
.pillar .icon svg{ width:20px; height:20px; stroke: var(--ice); }
.pillar h5{ font-size:1rem; font-weight:600; margin-bottom:8px; }
.pillar p{ font-size:0.88rem; color: var(--muted); line-height:1.6; }

@media (max-width: 992px){
  .about-grid{ grid-template-columns:1fr; }
  .about-media{ max-width: 420px; margin: 0 auto 56px; }
  .pillars{ grid-template-columns: 1fr; }
}

/* =========================================================
   SERVICES
   ========================================================= */
.services-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.svc-card{
  border-radius: var(--radius); overflow:hidden; background: var(--paper);
  border: 1px solid rgba(10,23,32,.08); transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.svc-card:hover{ transform: translateY(-6px); box-shadow: 0 26px 50px -24px rgba(10,30,40,.28); }
.svc-media{ position:relative; aspect-ratio: 16/10; overflow:hidden; }
.svc-media img{ width:100%; height:100%; object-fit:cover; transition: transform .6s var(--ease); }
.svc-card:hover .svc-media img{ transform: scale(1.06); }
.svc-media::after{ content:""; position:absolute; inset:0; background: linear-gradient(0deg, rgba(10,23,32,.55), transparent 55%); }
.svc-temp{
  position:absolute; bottom:12px; left:14px; z-index:2;
  font-family: var(--font-mono); font-size:0.72rem; color:var(--paper);
  display:flex; align-items:center; gap:7px;
}
.svc-temp .dot{ width:6px;height:6px;border-radius:50%; background: var(--ice); }
.svc-body{ padding: 24px 22px 26px; }
.svc-body h5{ font-size: 1.08rem; font-weight:600; margin-bottom:10px; }
.svc-body p{ font-size:0.9rem; color: var(--muted); line-height:1.65; }

@media (max-width: 992px){ .services-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 620px){ .services-grid{ grid-template-columns: 1fr; } }

/* Secondary services (list style) */
.svc-extra{ margin-top: 56px; padding-top: 48px; border-top: 1px solid rgba(10,23,32,.08); }
.svc-extra-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap: 30px 26px; }
.svc-extra-item{ display:flex; gap:14px; }
.svc-extra-item .icon{ width:38px;height:38px;border-radius:9px; background: var(--frost); display:flex;align-items:center;justify-content:center; flex-shrink:0; }
.svc-extra-item .icon svg{ width:18px;height:18px; stroke: var(--signal); }
.svc-extra-item h6{ font-size:0.94rem; font-weight:600; margin-bottom:5px; }
.svc-extra-item p{ font-size:0.83rem; color: var(--muted); line-height:1.55; }
@media (max-width: 992px){ .svc-extra-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .svc-extra-grid{ grid-template-columns: 1fr; } }

/* =========================================================
   INFRASTRUCTURE
   ========================================================= */
.infra{ background: var(--frost); }
.infra-top{ display:grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px; margin-bottom: 24px; }
.infra-card{ border-radius: var(--radius); overflow:hidden; position:relative; }
.infra-card img{ width:100%; height:100%; object-fit:cover; }
.infra-card.tall{ aspect-ratio: 4/5; }
.infra-hero{ aspect-ratio: 16/9; position:relative; }
.infra-hero .cap, .infra-card .cap{
  position:absolute; left:0; right:0; bottom:0; padding: 20px;
  background: linear-gradient(0deg, rgba(10,23,32,.82), transparent);
  color: var(--paper);
}
.infra-hero .cap h5, .infra-card .cap h5{ font-size:1.05rem; font-weight:600; margin-bottom:4px; }
.infra-hero .cap p, .infra-card .cap p{ font-size:0.82rem; color: var(--muted-lt); }
.infra-side{ display:flex; flex-direction:column; gap: 24px; }

.infra-facts{ display:grid; grid-template-columns: repeat(4,1fr); gap: 18px; margin-top:24px; }
.fact{ background: var(--paper); border-radius: var(--radius-sm); padding: 22px 20px; border:1px solid rgba(10,23,32,.06); }
.fact svg{ width:20px;height:20px; stroke: var(--signal); margin-bottom:12px; }
.fact h6{ font-size:0.92rem; font-weight:600; margin-bottom:6px; }
.fact p{ font-size:0.82rem; color: var(--muted); line-height:1.55; }
@media (max-width: 992px){ .infra-top{ grid-template-columns:1fr; } .infra-facts{ grid-template-columns: repeat(2,1fr); } }

.map-wrap{ margin-top: 24px; border-radius: var(--radius); overflow:hidden; position:relative; }
.map-wrap img{ width:100%; display:block; }

/* =========================================================
   CLIENTS
   ========================================================= */
.clients{ background: var(--graphite); overflow:hidden; }
.clients .section-head h2, .clients .section-head p{ color: var(--paper); }
.clients .section-head p{ color: var(--muted-lt); }
.marquee{ position:relative; width:100%; overflow:hidden; -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent); mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent); }
.marquee-track{ display:flex; gap: 0; width:max-content; animation: scroll-left 34s linear infinite; }
.marquee-track:hover{ animation-play-state: paused; }
.client-word{
  font-family: var(--font-display); font-weight:600; font-size: 1.5rem;
  color: var(--muted-lt); padding: 0 44px; display:flex; align-items:center;
  border-right: 1px solid var(--line); transition: color .3s;
  white-space:nowrap;
}
.marquee-track:hover .client-word{ color: var(--muted-lt); }
.client-word:hover{ color: var(--ice) !important; }
@keyframes scroll-left{ from{ transform: translateX(0); } to{ transform: translateX(-50%); } }

/* =========================================================
   ECO & SAFETY
   ========================================================= */
.eco-safety-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.es-card{ border-radius: var(--radius); overflow:hidden; position:relative; min-height: 380px; display:flex; align-items:flex-end; }
.es-card img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:0; }
.es-card::after{ content:""; position:absolute; inset:0; background: linear-gradient(0deg, rgba(10,23,32,.9) 10%, rgba(10,23,32,.15) 65%); z-index:1; }
.es-body{ position:relative; z-index:2; padding: 30px; color: var(--paper); }
.es-tag{ font-family: var(--font-mono); font-size:0.68rem; letter-spacing:.1em; text-transform:uppercase; color: var(--ice); margin-bottom:10px; display:block; }
.es-body h5{ font-size:1.3rem; color: var(--paper); margin-bottom:10px; }
.es-body p{ font-size:0.9rem; color: var(--muted-lt); max-width: 460px; line-height:1.65; }
@media (max-width: 900px){ .eco-safety-grid{ grid-template-columns:1fr; } }

/* =========================================================
   CTA BAND
   ========================================================= */
.cta-band{
  background: linear-gradient(120deg, var(--signal) 0%, var(--ice-dim) 100%);
  padding: 68px 0; position:relative; overflow:hidden;
}
.cta-band::before{
  content:""; position:absolute; right:-10%; top:-60%; width:520px; height:520px; border-radius:50%;
  border: 1px solid rgba(255,255,255,.18);
}
.cta-inner{ display:flex; align-items:center; justify-content:space-between; gap: 30px; flex-wrap:wrap; position:relative; z-index:1; }
.cta-inner h2{ color: var(--paper); font-size: clamp(1.4rem,2.6vw,2rem); max-width: 560px; font-weight:600; }
.cta-inner p{ color: rgba(255,255,255,.85); margin-top:10px; max-width: 520px; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid{ display:grid; grid-template-columns: 0.9fr 1.1fr; gap: 24px; }
.contact-info{
  background: var(--graphite); color: var(--paper); border-radius: var(--radius);
  padding: 40px 34px; position:relative; overflow:hidden;
}
.contact-info h4{ color: var(--paper); font-size:1.3rem; margin-bottom: 24px; }
.info-row{ display:flex; gap:14px; padding: 15px 0; border-top: 1px solid var(--line); align-items:flex-start; }
.info-row:first-of-type{ border-top:none; }
.info-row svg{ width:18px; height:18px; stroke: var(--ice); flex-shrink:0; margin-top:2px; }
.info-row p, .info-row a{ font-size:0.92rem; color: var(--muted-lt); line-height:1.55; }
.info-row a:hover{ color: var(--ice); }
.info-note{ margin-top: 22px; padding: 16px; border-radius: var(--radius-sm); background: rgba(79,216,232,.08); border: 1px solid rgba(79,216,232,.2); font-size:0.82rem; color: var(--muted-lt); }

.map-embed{ border-radius: var(--radius); overflow:hidden; min-height: 420px; border:1px solid rgba(10,23,32,.08); }
.map-embed iframe{ width:100%; height:100%; min-height:420px; border:0; display:block; }
@media (max-width: 992px){ .contact-grid{ grid-template-columns:1fr; } }

/* =========================================================
   FOOTER
   ========================================================= */
.footer{ background: var(--graphite); color: var(--muted-lt); padding-top: 76px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr; gap: 40px; padding-bottom: 56px; }
.footer-brand{ display:flex; align-items:center; margin-bottom: 18px; }
.footer-logo{ height:36px; width:auto; }
.footer p.desc{ font-size:0.88rem; line-height:1.7; max-width: 320px; color: var(--muted); }
.footer h6{ color: var(--paper); font-size:0.85rem; letter-spacing:.04em; text-transform:uppercase; margin-bottom: 18px; font-family: var(--font-mono); font-weight:500; }
.footer ul li{ margin-bottom: 12px; }
.footer ul a{ font-size:0.9rem; color: var(--muted); transition: color .25s; }
.footer ul a:hover{ color: var(--ice); }
.footer-social{ display:flex; gap:10px; margin-top:20px; }
.footer-social a{ width:36px;height:36px; border-radius:50%; border:1px solid var(--line); display:flex; align-items:center; justify-content:center; transition: all .25s; }
.footer-social a:hover{ border-color: var(--ice); color: var(--ice); }
.footer-social svg{ width:16px;height:16px; }
.footer-bottom{ border-top:1px solid var(--line); padding: 22px 0; display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; font-size:0.8rem; }
@media (max-width: 900px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px){ .footer-grid{ grid-template-columns: 1fr; } }

/* ---------- scroll to top ---------- */
.to-top{
  position: fixed; bottom: 26px; right: 26px; z-index: 400;
  width: 46px; height:46px; border-radius:50%; background: var(--graphite);
  border: 1px solid var(--line); display:flex; align-items:center; justify-content:center;
  opacity:0; pointer-events:none; transform: translateY(10px);
  transition: all .35s var(--ease);
}
.to-top.show{ opacity:1; pointer-events:auto; transform:none; }
.to-top svg{ width:16px; height:16px; stroke: var(--ice); }
.to-top:hover{ background: var(--steel); }