@font-face{ font-family:'IBM Plex Mono'; font-style:normal; font-weight:400; font-display:swap; src:url('fonts/ibm-plex-mono-400-latin.woff2') format('woff2'); unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face{ font-family:'IBM Plex Mono'; font-style:normal; font-weight:400; font-display:swap; src:url('fonts/ibm-plex-mono-400-latin-ext.woff2') format('woff2'); unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face{ font-family:'IBM Plex Mono'; font-style:normal; font-weight:500; font-display:swap; src:url('fonts/ibm-plex-mono-500-latin.woff2') format('woff2'); unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face{ font-family:'IBM Plex Mono'; font-style:normal; font-weight:500; font-display:swap; src:url('fonts/ibm-plex-mono-500-latin-ext.woff2') format('woff2'); unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face{ font-family:'Karla'; font-style:normal; font-weight:400 700; font-display:swap; src:url('fonts/karla-400-500-600-700-latin.woff2') format('woff2'); unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face{ font-family:'Karla'; font-style:normal; font-weight:400 700; font-display:swap; src:url('fonts/karla-400-500-600-700-latin-ext.woff2') format('woff2'); unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }
@font-face{ font-family:'Petrona'; font-style:normal; font-weight:400 700; font-display:swap; src:url('fonts/petrona-400-500-600-700-latin.woff2') format('woff2'); unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face{ font-family:'Petrona'; font-style:normal; font-weight:400 700; font-display:swap; src:url('fonts/petrona-400-500-600-700-latin-ext.woff2') format('woff2'); unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF; }

:root{
  --ink:#1B3A4B;
  --ink-2:#24485C;
  --paper:#F6EFE4;
  --paper-2:#EFE4D3;
  --teal:#2E6F95;
  --teal-dim:#244F6B;
  --teal-on-dark:#8AC0DE;
  --terracotta:#B33A2E;
  --terracotta-dim:#7A2B1F;
  --terracotta-on-dark:#F0A88F;
  --muted:#6B5D52;
  --muted-dark:#C1B2A4;
  --line: rgba(246,239,228,0.16);
  --mode-accent: var(--teal);
  --mode-accent-dim: var(--teal-dim);
  --mode-accent-on-dark: var(--teal-on-dark);
  --ease: cubic-bezier(.22,.9,.3,1);
}
*{box-sizing:border-box; margin:0; padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--paper); color:var(--ink); font-family:'Karla', sans-serif;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
  touch-action:manipulation; -webkit-tap-highlight-color:transparent;
}
::selection{ background:var(--mode-accent); color:var(--paper); }
:focus-visible{ outline:2px solid var(--mode-accent); outline-offset:3px; border-radius:2px; }
.skip-link{
  position:absolute; top:-100%; left:12px; z-index:1000; background:var(--ink); color:var(--paper);
  padding:12px 20px; border-radius:8px; font-family:'IBM Plex Mono', monospace; font-size:13px; transition:top .2s var(--ease);
}
.skip-link:focus-visible{ top:12px; }
a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}
.mono{ font-family:'IBM Plex Mono', monospace; }
h1,h2,h3{ font-family:'Petrona', serif; line-height:1.05; letter-spacing:-0.01em; text-wrap:balance; }
.wrap{ max-width:1180px; margin:0 auto; padding:0 28px; }
.eyebrow{
  font-family:'IBM Plex Mono', monospace; font-size:12px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--mode-accent); display:flex; align-items:center; gap:10px; transition:color .5s var(--ease);
}
.eyebrow::before{ content:""; width:18px; height:1px; background:var(--mode-accent); transition:background .5s var(--ease);}
/* on dark sections, --mode-accent alone fails 4.5:1 for text — use the lighter on-dark variant */
.hero .eyebrow, .about .eyebrow, .zone .eyebrow, .contact-form .eyebrow, .badges .eyebrow{ color:var(--mode-accent-on-dark); }
.hero .eyebrow::before, .about .eyebrow::before, .zone .eyebrow::before, .contact-form .eyebrow::before, .badges .eyebrow::before{ background:var(--mode-accent-on-dark); }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }

/* ---------- topbar ---------- */
.topbar{ background:var(--ink); color:var(--muted-dark); font-family:'IBM Plex Mono', monospace; font-size:12px; padding:8px 0; border-bottom:1px solid var(--line); }
.topbar .wrap{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:6px;}
.topbar a{ color:var(--paper); }
.topbar span.dot{ color:var(--mode-accent-on-dark); }

/* ---------- header + nav ---------- */
header.site{ position:sticky; top:0; z-index:50; background:rgba(27,58,75,0.92); backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
header.site .wrap{ display:flex; align-items:center; justify-content:space-between; padding:16px 28px; gap:32px; }
.logo{ display:flex; align-items:center; gap:10px; color:var(--paper); font-family:'Petrona'; font-weight:700; font-size:20px; white-space:nowrap; }
.logo .flame{ width:10px; height:10px; border-radius:50%; background:var(--mode-accent); box-shadow:0 0 12px var(--mode-accent); }
nav.main{ display:flex; gap:44px; }
nav.main > a, .nav-item > a{ color:var(--paper); font-size:14px; font-weight:500; opacity:.85; position:relative; padding:6px 0; display:inline-block; }
nav.main > a:hover, .nav-item:hover > a{ opacity:1; }
nav.main > a::after, .nav-item > a::after{ content:""; position:absolute; left:0; bottom:-2px; width:100%; height:1px; background:var(--mode-accent); transform:scaleX(0); transform-origin:left; transition:transform .3s var(--ease); }
nav.main > a:hover::after, .nav-item:hover > a::after{ transform:scaleX(1); }
nav.main > a[aria-current="page"], .nav-item > a[aria-current="page"]{ opacity:1; }
nav.main > a[aria-current="page"]::after, .nav-item > a[aria-current="page"]::after{ transform:scaleX(1); }
.nav-item{ position:relative; }
.nav-item::after{ content:""; position:absolute; top:100%; left:-14px; width:220px; height:10px; }
.dropdown{
  position:absolute; top:100%; left:-14px; margin-top:10px; background:var(--ink-2); border:1px solid var(--line);
  border-radius:10px; padding:8px; min-width:220px; display:flex; flex-direction:column; gap:2px;
  opacity:0; visibility:hidden; transform:translateY(6px); transition:opacity .25s var(--ease), transform .25s var(--ease);
}
.nav-item:hover .dropdown{ opacity:1; visibility:visible; transform:translateY(0); }
.dropdown a{ color:var(--paper); font-size:13.5px; padding:14px 12px; border-radius:6px; opacity:.85; display:flex; align-items:center; min-height:44px; }
.dropdown a:hover{ background:rgba(255,255,255,0.06); opacity:1; }
.call-btn{
  display:flex; align-items:center; gap:8px; background:var(--mode-accent); color:var(--paper);
  padding:10px 18px; border-radius:100px; font-weight:600; font-size:13px; transition:transform .2s var(--ease); white-space:nowrap;
}
.call-btn:hover{ transform:translateY(-2px); }
.burger{ display:none; color:var(--paper); font-size:24px; line-height:1; z-index:110; min-width:44px; min-height:44px; align-items:center; justify-content:center; margin:-10px; }

/* ---------- mobile menu ---------- */
.mobile-menu{
  position:fixed; inset:0; background:var(--ink); z-index:100; display:none; flex-direction:column;
  padding:110px 32px 40px; gap:6px; overflow-y:auto;
}
.mobile-menu.open{ display:flex; }
.mobile-menu a{ color:var(--paper); font-family:'Petrona'; font-size:19px; font-weight:600; padding:14px 0; border-bottom:1px solid var(--line); }
.mobile-menu a[aria-current="page"]{ color:var(--mode-accent-on-dark); border-bottom-color:var(--mode-accent-on-dark); }
.mobile-menu .call-btn{ margin-top:18px; justify-content:center; }

/* ---------- hero (home) ---------- */
.hero{ position:relative; min-height:92vh; display:flex; align-items:center; background:linear-gradient(180deg, var(--ink) 0%, #234A5F 100%); overflow:hidden; color:var(--paper); }
.hero-photo{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; opacity:.28; filter:grayscale(.3) contrast(1.1); }
.hero::after{ content:""; position:absolute; inset:0; background:linear-gradient(180deg, rgba(27,58,75,.55) 0%, rgba(27,58,75,.92) 85%); z-index:1; }
#airflow{ position:absolute; inset:0; width:100%; height:100%; opacity:.55; z-index:1; }
.hero-inner{ position:relative; z-index:2; width:100%; padding:80px 0 60px; }
.hero .wrap{ display:grid; grid-template-columns:1.15fr .85fr; gap:50px; align-items:end; }
.hero h1{ font-size:clamp(38px, 5.4vw, 74px); font-weight:700; margin-top:18px; color:var(--paper); }
.hero h1 em{ font-style:normal; color:var(--mode-accent-on-dark); }
.hero p.lead{ font-size:17px; color:var(--muted-dark); max-width:46ch; margin-top:22px; line-height:1.6; }
.hero .cta-row{ display:flex; gap:14px; margin-top:34px; flex-wrap:wrap; }

/* ---------- hero (subpages) ---------- */
.hero-page{ min-height:auto; padding:170px 0 70px; align-items:start; }
.hero-page .wrap{ display:block; }
.hero-page h1{ font-size:clamp(32px,4.4vw,54px); }
.hero-page p.lead{ max-width:60ch; }
.breadcrumb{ font-family:'IBM Plex Mono'; font-size:12px; color:var(--muted-dark); display:flex; gap:8px; align-items:center; flex-wrap:wrap; }
.breadcrumb a{ color:var(--teal-on-dark); }

.btn-primary{
  background:var(--mode-accent); color:var(--paper); padding:15px 26px; border-radius:6px; font-weight:600; font-size:14px;
  transition:background .5s var(--ease), transform .2s var(--ease); display:inline-flex; align-items:center; gap:10px;
}
.btn-primary:hover{ transform:translateY(-2px); }
.btn-ghost{
  border:1px solid var(--line); color:var(--paper); padding:15px 26px; border-radius:6px; font-size:14px; font-weight:500;
  transition:border-color .3s var(--ease), background .3s var(--ease);
}
.btn-ghost:hover{ border-color:var(--mode-accent); background:rgba(255,255,255,0.03); }

/* thermostat (home only) */
.thermostat{ background:rgba(255,255,255,0.04); border:1px solid var(--line); border-radius:16px; padding:26px; backdrop-filter:blur(6px); }
.thermostat .row-top{ display:flex; justify-content:space-between; align-items:center; margin-bottom:18px;}
.thermostat .label{ font-family:'IBM Plex Mono'; font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--muted-dark); }
.gauge-wrap{ display:flex; align-items:center; gap:22px; }
.gauge{ position:relative; width:120px; height:120px; flex-shrink:0; }
.gauge svg{ width:100%; height:100%; transform:rotate(-90deg); }
.gauge circle{ fill:none; stroke-width:8; }
.gauge .track{ stroke:rgba(255,255,255,0.08); }
.gauge .fill{ stroke:var(--mode-accent-on-dark); stroke-linecap:round; transition:stroke .5s var(--ease), stroke-dashoffset .8s var(--ease); }
.gauge .readout{ position:absolute; inset:0; display:flex; flex-direction:column; align-items:center; justify-content:center; }
.gauge .readout .num{ font-family:'Petrona'; font-size:26px; font-weight:700; color:var(--paper); }
.gauge .readout .unit{ font-family:'IBM Plex Mono'; font-size:10px; color:var(--muted-dark); }
.mode-toggle{ display:flex; background:rgba(0,0,0,0.25); border-radius:100px; padding:4px; position:relative; margin-top:20px; }
.mode-toggle button{ flex:1; min-height:44px; display:flex; align-items:center; justify-content:center; font-size:12px; font-weight:600; border-radius:100px; z-index:1; color:var(--muted-dark); font-family:'IBM Plex Mono'; letter-spacing:.06em; transition:color .3s var(--ease); }
.mode-toggle button.active{ color:var(--paper); }
.mode-toggle .slider{ position:absolute; top:4px; bottom:4px; width:calc(50% - 4px); border-radius:100px; background:var(--mode-accent); left:4px; transition:left .4s var(--ease), background .5s var(--ease); }
.mode-toggle.warm .slider{ left:calc(50% + 0px); }
.thermostat .caption{ font-size:12.5px; color:var(--muted-dark); margin-top:16px; line-height:1.5; }

.scroll-cue{ position:absolute; bottom:26px; left:50%; transform:translateX(-50%); z-index:2; }
.scroll-cue span{ display:block; width:1px; height:34px; background:linear-gradient(var(--mode-accent), transparent); margin:0 auto 8px; animation:pulseLine 2s infinite; }
@keyframes pulseLine{ 0%,100%{opacity:.2;} 50%{opacity:1;} }
.scroll-cue p{ font-family:'IBM Plex Mono'; font-size:10px; color:var(--muted-dark); text-align:center; letter-spacing:.1em; }

/* ---------- sections ---------- */
section{ padding:110px 0; }
.sec-head{ max-width:640px; margin-bottom:60px; }
.sec-head h2{ font-size:clamp(28px,3.4vw,42px); margin-top:16px; color:var(--ink); }
.sec-head p{ color:var(--muted); margin-top:16px; font-size:15.5px; line-height:1.65; }
.light-muted{ color:var(--muted-dark); }
.reveal{ opacity:0; transform:translateY(28px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in{ opacity:1; transform:translateY(0); }

/* ---------- prose (content pages) ---------- */
.prose{ max-width:760px; }
.prose p{ color:var(--muted); font-size:15.5px; line-height:1.75; margin-bottom:18px; }
.prose h2{ font-size:26px; margin:44px 0 16px; color:var(--ink); }
.prose h3{ font-size:19px; margin:30px 0 10px; color:var(--ink); }
.prose ul{ margin:0 0 18px 20px; color:var(--muted); font-size:15px; line-height:1.8; }
.prose strong{ color:var(--ink); }

.install-types{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; margin-top:44px; max-width:760px; }
.install-types h3{ font-size:17px; color:var(--ink); }
.install-types > div{ border-top:1px solid var(--paper-2); padding-top:18px; }
.install-types p{ color:var(--muted); font-size:13.5px; margin-top:8px; line-height:1.6; }

/* ---------- history articles ---------- */
.history-list{ display:flex; flex-direction:column; gap:70px; }
.history-article{ display:grid; grid-template-columns:340px 1fr; gap:44px; align-items:start; }
.history-article:nth-child(even) .history-media{ order:2; }
.history-media{ border-radius:14px; overflow:hidden; aspect-ratio:4/3; background:var(--paper-2); }
.history-media img{ width:100%; height:100%; object-fit:cover; }
.history-date{ font-size:12px; letter-spacing:.1em; text-transform:uppercase; color:var(--mode-accent); }
.history-article h2{ font-size:26px; margin-top:8px; }
.history-article .prose{ margin-top:14px; max-width:none; }
.history-article .prose p:last-child{ margin-bottom:0; }
@media (max-width:900px){
  .history-article{ grid-template-columns:1fr; }
  .history-article:nth-child(even) .history-media{ order:0; }
}

/* ---------- accordion ---------- */
.accordion{ max-width:760px; border-top:1px solid var(--paper-2); }
.accordion details{ border-bottom:1px solid var(--paper-2); padding:22px 0; }
.accordion summary{ font-family:'Petrona'; font-size:17px; font-weight:600; cursor:pointer; list-style:none; display:flex; justify-content:space-between; align-items:center; }
.accordion summary::-webkit-details-marker{ display:none; }
.accordion summary::after{ content:"+"; font-family:'IBM Plex Mono'; color:var(--mode-accent); font-size:20px; }
.accordion details[open] summary::after{ content:"–"; }
.accordion .accordion-body{ color:var(--muted); font-size:14.5px; line-height:1.75; margin-top:14px; }
.accordion .accordion-body ul{ margin-left:18px; margin-top:8px; }

/* ---------- badges (certifications) ---------- */
.badges{ background:var(--ink-2); color:var(--paper); }
.badge-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; }
.badge{ border:1px solid var(--line); border-radius:12px; padding:26px; }
.badge .bn{ font-family:'IBM Plex Mono'; font-size:11px; color:var(--teal-on-dark); text-transform:uppercase; letter-spacing:.06em; }
.badge h3{ font-size:17px; margin-top:12px; }
.badge p{ color:var(--muted-dark); font-size:13.5px; margin-top:8px; line-height:1.6; }

/* ---------- CTA band ---------- */
.cta-band{ background:var(--ink); color:var(--paper); text-align:center; }
.cta-band h2{ font-size:clamp(26px,3.4vw,38px); }
.cta-band p{ color:var(--muted-dark); margin-top:14px; font-size:15px; }
.cta-band .cta-row{ display:flex; gap:14px; justify-content:center; margin-top:30px; flex-wrap:wrap; }
.cta-trust{ display:flex; align-items:center; justify-content:center; gap:9px; margin-bottom:22px; font-family:'IBM Plex Mono'; font-size:11px; letter-spacing:.06em; text-transform:uppercase; color:var(--muted-dark); }
.cta-trust .stars{ color:var(--mode-accent-on-dark); }
.cta-trust .stars svg{ width:12px; height:12px; }
.cta-trust a{ color:var(--muted-dark); border-bottom:1px solid var(--line); padding-bottom:1px; transition:color .3s var(--ease), border-color .3s var(--ease); }
.cta-trust a:hover{ color:var(--paper); border-color:var(--paper); }

/* ---------- services ---------- */
.services{ background:var(--paper); }
.svc-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--paper-2); border:1px solid var(--paper-2); border-radius:14px; overflow:hidden; }
.svc-card{ background:var(--paper); padding:34px 26px; position:relative; overflow:hidden; min-height:280px; display:flex; flex-direction:column; justify-content:space-between; transition:background .35s var(--ease); }
.svc-card:hover{ background:var(--ink); }
.svc-card:hover .svc-title, .svc-card:hover p{ color:var(--paper); }
.svc-card:hover .svc-link{ color:var(--mode-accent-on-dark); }
/* Climatisation is the flagship service — permanently featured, not just on hover, so the grid isn't four identical cards */
.svc-card:first-child{ background:var(--ink); }
.svc-card:first-child .svc-title, .svc-card:first-child p{ color:var(--paper); }
.svc-card:first-child .svc-link{ color:var(--mode-accent-on-dark); }
.svc-icon{ width:46px; height:46px; margin:4px 0 10px; }
.svc-title{ font-family:'Petrona'; font-size:19px; font-weight:600; color:var(--ink); transition:color .35s var(--ease); }
.svc-card p{ font-size:13.5px; color:var(--muted); margin-top:10px; line-height:1.55; transition:color .35s var(--ease); }
.svc-link{ margin-top:18px; font-family:'IBM Plex Mono'; font-size:11px; letter-spacing:.06em; color:var(--mode-accent); text-transform:uppercase; }
.fan{ transform-origin:50% 50%; animation:spin 5s linear infinite; }
.svc-card:hover .fan{ animation-duration:.7s; }
@keyframes spin{ to{ transform:rotate(360deg); } }
.snow{ animation:drift 3s ease-in-out infinite; }
@keyframes drift{ 0%,100%{ transform:translateY(0);} 50%{ transform:translateY(-4px);} }

/* ---------- gallery + lightbox ---------- */
.gallery{ background:var(--paper); }
.gal-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.gal-item{ display:block; width:100%; padding:0; position:relative; border-radius:10px; overflow:hidden; aspect-ratio:4/3; background:var(--paper-2); text-align:left; }
.gal-item img{ width:100%; height:100%; object-fit:cover; transition:transform .5s var(--ease); pointer-events:none; }
.gal-item:hover img{ transform:scale(1.06); }
.gal-item:focus-visible{ outline:2px solid var(--teal); outline-offset:2px; }
.gal-item .cap{ position:absolute; left:0; right:0; bottom:0; padding:14px 16px; background:linear-gradient(0deg, rgba(27,58,75,.85), transparent); color:var(--paper); font-size:12.5px; line-height:1.4; }
.gal-item .cap b{ display:block; font-family:'IBM Plex Mono'; font-size:10.5px; color:var(--teal-on-dark); text-transform:uppercase; letter-spacing:.06em; margin-bottom:3px; }
.gal-item .zoom{ position:absolute; top:10px; right:10px; width:28px; height:28px; border-radius:50%; background:rgba(27,58,75,.55); display:flex; align-items:center; justify-content:center; color:var(--paper); font-size:14px; opacity:0; transition:opacity .25s var(--ease); }
.gal-item:hover .zoom{ opacity:1; }

.gal-cover{
  position:absolute; inset:0; z-index:2; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:10px;
  background:var(--ink); opacity:0; pointer-events:none; transition:opacity .45s var(--ease), transform .45s var(--ease);
}
.gal-cover-icon{ width:26px; height:26px; color:var(--terracotta); }
.gal-cover-label{ font-size:11px; letter-spacing:.1em; text-transform:uppercase; color:var(--paper); }
@media (hover:hover) and (pointer:fine){
  .gal-cover{ opacity:1; pointer-events:auto; }
  .gal-item:hover .gal-cover, .gal-item:focus-visible .gal-cover{ opacity:0; transform:scale(1.04); }
}

/* ---------- gallery teaser tiles (index.html — no photos, links out to nos-realisations.html) ---------- */
.gal-tile{
  display:flex; flex-direction:column; gap:16px; padding:28px 24px; border:1px solid var(--paper-2); border-radius:10px;
  background:var(--paper); transition:border-color .25s var(--ease), transform .2s var(--ease);
}
.gal-tile:hover, .gal-tile:focus-visible{ border-color:var(--mode-accent); transform:translateY(-2px); }
.gal-tile-icon{ width:40px; height:40px; color:var(--mode-accent); transition:color .5s var(--ease); }
.gal-tile-body b{ display:block; font-size:11px; letter-spacing:.06em; text-transform:uppercase; color:var(--ink); margin-bottom:6px; }
.gal-tile-body span{ font-size:13.5px; color:var(--muted); line-height:1.55; }

.lightbox{ position:fixed; inset:0; background:rgba(6,16,24,.94); z-index:300; display:none; align-items:center; justify-content:center; flex-direction:column; gap:16px; padding:40px; overscroll-behavior:contain; }
.lightbox.open{ display:flex; }
.lightbox img{ max-width:min(90vw, 1000px); max-height:74vh; border-radius:10px; object-fit:contain; }
.lightbox .lb-cap{ color:var(--paper); font-size:14px; font-family:'IBM Plex Mono'; opacity:.75; text-align:center; }
.lightbox .lb-close{ position:absolute; top:calc(17px + env(safe-area-inset-top)); right:calc(21px + env(safe-area-inset-right)); color:var(--paper); font-size:30px; line-height:1; min-width:44px; min-height:44px; display:flex; align-items:center; justify-content:center; }
.lightbox .lb-nav{ position:absolute; top:50%; transform:translateY(-50%); color:var(--paper); font-size:34px; padding:10px 16px; opacity:.6; }
.lightbox .lb-nav:hover{ opacity:1; }
.lightbox .lb-prev{ left:10px; }
.lightbox .lb-next{ right:10px; }

/* ---------- about / values ---------- */
.about{ background:var(--ink); color:var(--paper); }
.about .sec-head p{ color:var(--muted-dark); }
.values{ display:grid; grid-template-columns:repeat(3,1fr); gap:36px; margin-top:20px; }
.value{ border-top:1px solid var(--line); padding-top:22px; }
.value h3{ font-size:20px; }
.value p{ color:var(--muted-dark); font-size:14px; margin-top:10px; line-height:1.6; }

/* ---------- timeline ---------- */
.timeline{ background:var(--paper); }
.tl{ position:relative; margin-top:20px; padding-left:2px;}
.tl::before{ content:""; position:absolute; left:120px; top:0; bottom:0; width:1px; background:var(--paper-2); }
.tl-item{ display:grid; grid-template-columns:120px 1fr; gap:30px; padding:30px 0; position:relative; }
.tl-item .yr{ font-family:'IBM Plex Mono'; font-size:13px; color:var(--muted); padding-top:2px; text-align:right; padding-right:18px; white-space:nowrap; }
.tl-item .dot{ position:absolute; left:116px; top:34px; width:9px; height:9px; border-radius:50%; background:var(--mode-accent); box-shadow:0 0 0 4px var(--paper), 0 0 0 5px var(--paper-2); }
.tl-item h3{ font-size:19px; font-weight:600; }
.tl-item p{ color:var(--muted); font-size:14px; margin-top:8px; max-width:60ch; line-height:1.6; }

/* ---------- zone ---------- */
.zone{ background:var(--ink-2); color:var(--paper); position:relative; overflow:hidden; }
.zone-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.radar{ position:relative; aspect-ratio:1; max-width:420px; }
.radar svg{ width:100%; height:100%; }
.radar-ring{ fill:none; stroke:rgba(255,255,255,0.1); }
.radar-sweep{ transform-origin:center; animation:sweep 4s linear infinite; }
@keyframes sweep{ to{ transform:rotate(360deg); } }
.radar-city{ font-family:'IBM Plex Mono'; font-size:9px; fill:var(--paper); }
.radar-dot{ fill:var(--mode-accent-on-dark); }
.city-list{ display:flex; flex-wrap:wrap; gap:10px; margin-top:24px; }
.city-chip{ border:1px solid var(--line); padding:8px 14px; border-radius:100px; font-size:12.5px; color:var(--muted-dark); font-family:'IBM Plex Mono';}

/* ---------- brands ---------- */
.brands{ background:var(--paper); border-top:1px solid var(--paper-2); border-bottom:1px solid var(--paper-2); padding:44px 0; overflow:hidden; display:flex; justify-content:center; }
.marquee{ display:flex; gap:70px; white-space:nowrap; animation:scroll-x 34s linear infinite; width:max-content; }
.marquee span{ font-family:'Petrona'; font-size:20px; font-weight:600; color:var(--muted); opacity:.7; }
@keyframes scroll-x{ from{ transform:translateX(0); } to{ transform:translateX(-25%); } }

/* ---------- reviews ---------- */
.reviews{ background:var(--paper); }
.reviews-head{ display:flex; flex-wrap:wrap; justify-content:space-between; align-items:flex-end; gap:32px; margin-bottom:50px; }
.reviews-head .sec-head{ margin-bottom:0; }
.reviews-stat{ display:flex; align-items:center; gap:14px; flex-shrink:0; }
.reviews-stat .num{ font-family:'Petrona'; font-size:clamp(30px,3.4vw,38px); font-weight:700; color:var(--ink); line-height:1; }
.reviews-stat .stat-body{ display:flex; flex-direction:column; gap:5px; }
.stars{ display:flex; gap:2px; color:var(--mode-accent); transition:color .5s var(--ease); }
.stars svg{ width:13px; height:13px; }
.reviews-stat .meta{ font-family:'IBM Plex Mono'; font-size:11px; color:var(--muted); text-transform:uppercase; letter-spacing:.06em; }

.review-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:22px; }
.review-card{ border:1px solid var(--paper-2); border-radius:12px; padding:28px; }
.review-card .stars{ margin-bottom:16px; }
.review-card .stars svg{ width:13px; height:13px; }
.review-card p{ font-size:14.5px; color:var(--muted); line-height:1.7; }
.review-card .who{ display:flex; justify-content:space-between; align-items:baseline; gap:12px; margin-top:18px; padding-top:16px; border-top:1px solid var(--paper-2); }
.review-card .name{ font-family:'Petrona'; font-weight:600; font-size:14.5px; color:var(--ink); }
.review-card .when{ font-family:'IBM Plex Mono'; font-size:11px; color:var(--muted); white-space:nowrap; }

@media (max-width:900px){
  .review-grid{ grid-template-columns:1fr; }
}
@media (max-width:560px){
  .reviews-head{ flex-direction:column; align-items:flex-start; }
}

/* ---------- contact ---------- */
.contact{ background:var(--paper); }
.contact-grid{ display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:start; }

.contact-form{
  background:var(--ink); border-radius:20px; padding:46px 42px 40px; position:relative; overflow:hidden;
  box-shadow:0 30px 70px -36px rgba(27,58,75,.5);
}
.contact-form::before{ content:""; position:absolute; top:0; left:0; right:0; height:4px; background:var(--mode-accent); transition:background .5s var(--ease); }
.contact-form .eyebrow{ margin-bottom:24px; }

.field{ margin-bottom:18px; }
.field label{ font-family:'IBM Plex Mono'; font-size:11px; text-transform:uppercase; letter-spacing:.08em; color:var(--muted-dark); display:block; margin-bottom:8px; }
.field input, .field textarea{ width:100%; background:transparent; border:none; border-bottom:1px solid var(--line); padding:14px 2px; font-family:'Karla'; font-size:16px; color:var(--paper); transition:border-color .3s var(--ease); }
.field input::placeholder, .field textarea::placeholder{ color:var(--muted-dark); opacity:1; }
.field input:focus-visible, .field textarea:focus-visible{ outline:none; border-color:var(--mode-accent); }
.form-success{ font-size:15px; color:var(--muted-dark); }
.form-error{ font-size:13px; color:var(--terracotta-on-dark); margin-top:14px; }

.contact-info{ padding-top:8px; }
.contact-info h3{ font-size:20px; margin-bottom:20px; color:var(--ink); }
.ci-row{ display:flex; gap:14px; padding:14px 0; border-top:1px solid var(--paper-2); }
.ci-row:first-of-type{ border-top:none; }
.ci-row .k{ font-family:'IBM Plex Mono'; font-size:11px; color:var(--mode-accent); min-width:90px; text-transform:uppercase; letter-spacing:.06em; padding-top:2px;}
.ci-row .v{ font-size:14.5px; color:var(--ink); line-height:1.5; }
.map-embed{ border-radius:16px; overflow:hidden; border:1px solid var(--paper-2); margin-top:26px; }
.map-embed iframe{ width:100%; height:280px; border:0; display:block; }
.map-placeholder{ height:280px; background:var(--paper-2); display:flex; flex-direction:column; align-items:center; justify-content:center; gap:16px; text-align:center; padding:26px; }
.map-placeholder p{ font-size:13px; color:var(--muted); max-width:32ch; line-height:1.55; }
@media (max-width:900px){
  .contact-grid{ grid-template-columns:1fr; }
}

/* ---------- footer ---------- */
footer{ background:var(--ink); color:var(--muted-dark); padding:32px 0; font-size:13px; }
footer .wrap{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px; }
footer a{ color:var(--paper); }
footer .footer-nap{ padding-bottom:20px; margin-bottom:20px; border-bottom:1px solid var(--line); font-family:'IBM Plex Mono', monospace; font-size:12px; }

@media (max-width: 900px){
  nav.main, .call-btn{ display:none; }
  .burger{ display:flex; }
  .hero .wrap{ grid-template-columns:1fr; }
  .svc-grid{ grid-template-columns:1fr 1fr; }
  .values, .zone-grid, .contact-grid, .badge-grid, .install-types{ grid-template-columns:1fr; }
  .gal-grid{ grid-template-columns:1fr 1fr; }
  .tl::before{ left:14px; }
  .tl-item{ display:block; padding:26px 0 26px 38px; }
  .tl-item .yr{ display:block; margin-bottom:6px; text-align:left; padding-right:0; }
  .tl-item .dot{ left:10px; top:32px; }
  section{ padding:76px 0; }
  .hero-page{ padding:150px 0 50px; }
}
@media (max-width:560px){
  .svc-grid{ grid-template-columns:1fr; }
  .gal-grid{ grid-template-columns:1fr; }
}
/* ---------- preloader ---------- */
.preloader{
  position:fixed; inset:0; z-index:1000; background:var(--ink);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:22px;
  transition:opacity .5s var(--ease);
}
.preloader-hide{ opacity:0; pointer-events:none; }

@keyframes preloaderEnter{ from{ opacity:0; transform:translateY(8px) scale(.96); } to{ opacity:1; transform:none; } }

/* clim-loader: animated AC unit, souffle vertical, alternance froid/chaud */
.clim-loader-svg{ width:200px; height:auto; }
.clim-shadow{ transform-box:fill-box; transform-origin:center; animation:preloaderEnter .4s var(--ease) both; }

.clim-air{ transform-box:fill-box; transform-origin:center; animation:preloaderEnter .4s var(--ease) both; }
.clim-gust{
  stroke:#6fcdea;
  stroke-width:8; stroke-linecap:round;
  transform-box:fill-box; transform-origin:center;
  animation:climBlow 1.2s ease-in-out infinite;
  transition:stroke .3s ease;
}
.clim-gust:nth-child(1){ animation-delay:0s; }
.clim-gust:nth-child(2){ animation-delay:.15s; }
.clim-gust:nth-child(3){ animation-delay:.3s; }
@keyframes climBlow{
  0%,100%{ opacity:.15; transform:translateY(0) scaleY(.85); }
  50%{ opacity:1; transform:translateY(14px) scaleY(1.1); }
}

.preloader-caption-wrap{ position:relative; height:18px; }
.preloader-caption{
  position:absolute; left:50%; top:0; transform:translateX(-50%); white-space:nowrap;
  font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:var(--muted-dark);
  animation:preloaderCaptionOut .3s ease 4.3s both;
}
.preloader-caption-2{ color:var(--terracotta-on-dark); animation:preloaderCaptionIn .3s ease 4.4s both; }
@keyframes preloaderCaptionOut{ to{ opacity:0; transform:translateX(-50%) translateY(-6px); } }
@keyframes preloaderCaptionIn{ from{ opacity:0; transform:translateX(-50%) translateY(6px); } to{ opacity:1; transform:translateX(-50%); } }

body.preloading{ overflow:hidden; }

@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important; }
}