/* ============================================================
   ALUNEX — «Архитектура света»
   Dark graphite · brushed aluminium · signal red (#C8161D)
   Mobile-first, no frameworks.
   ============================================================ */

:root{
  --bg: #0b0c0e;
  --bg-2: #101216;
  --bg-3: #16181d;
  --ink: #f2f3f5;
  --mut: #9ba0a8;
  --dim: #6a6f78;
  --red: #c8161d;
  --red-2: #e33840;
  --alu-hi: #d8dbe0;
  --alu: #8d939c;
  --alu-lo: #3a3d43;
  --metal: linear-gradient(115deg,#43474e 0%,#7c828b 18%,#2e3136 38%,#9aa0a9 55%,#3d4046 72%,#84898f 88%,#2c2f34 100%);
  --ease: cubic-bezier(.22,.9,.28,1);
  --font-d: "Unbounded", system-ui, sans-serif;
  --font-b: "Manrope", system-ui, sans-serif;
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html{ scroll-behavior:smooth; }
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-b);
  font-size:16px; line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
::selection{ background:var(--red); color:#fff; }

/* faint blueprint grid over the whole page */
body::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,.022) 0 1px, transparent 1px 25vw),
    linear-gradient(180deg, rgba(255,255,255,.02), transparent 30%);
}

/* ---------- type ---------- */
.kicker{
  font-family:var(--font-d); font-size:.68rem; font-weight:400;
  letter-spacing:.32em; text-transform:uppercase; color:var(--red-2);
  margin-bottom:1rem;
}
.h2{
  font-family:var(--font-d); font-weight:500;
  font-size:clamp(1.6rem, 5.6vw, 2.9rem);
  line-height:1.14; letter-spacing:.01em;
}
.h3{
  font-family:var(--font-d); font-weight:500;
  font-size:clamp(1.25rem, 4.4vw, 1.9rem);
  line-height:1.2; margin-bottom:.9rem;
}
.note{ color:var(--mut); max-width:34rem; margin-top:1rem; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.55rem;
  font-family:var(--font-b); font-weight:800; font-size:.95rem;
  padding:.95rem 1.7rem; border-radius:2px; border:0; cursor:pointer;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease), background .3s;
  position:relative; overflow:hidden;
}
.btn svg{ width:1.15rem; height:1.15rem; }
.btn-red{
  background:linear-gradient(135deg,#e02a31,var(--red) 55%,#9e1015);
  color:#fff; box-shadow:0 8px 28px rgba(200,22,29,.35);
}
.btn-red::after{ /* sheen sweep on hover */
  content:""; position:absolute; top:0; bottom:0; left:-70%; width:45%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.35),transparent);
  transform:skewX(-18deg); transition:left .55s var(--ease);
}
.btn-red:hover{ transform:translateY(-2px); box-shadow:0 12px 34px rgba(200,22,29,.5); }
.btn-red:hover::after{ left:130%; }
.btn-ghost{
  color:var(--ink); background:rgba(255,255,255,.04);
  box-shadow:inset 0 0 0 1px rgba(216,219,224,.35);
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{ box-shadow:inset 0 0 0 1px var(--alu-hi); transform:translateY(-2px); }
.btn-s{ padding:.6rem 1.05rem; font-size:.82rem; }
.btn-wide{ width:100%; }

/* ============================================================
   HEADER
   ============================================================ */
.hdr{
  position:fixed; top:0; left:0; right:0; z-index:60;
  display:flex; align-items:center; justify-content:space-between; gap:1rem;
  padding:.8rem clamp(1rem,4vw,2.5rem);
  transition:background .4s, box-shadow .4s, padding .4s;
}
.hdr.scrolled{
  background:rgba(11,12,14,.82);
  backdrop-filter:blur(14px); -webkit-backdrop-filter:blur(14px);
  box-shadow:0 1px 0 rgba(216,219,224,.08);
  padding-top:.55rem; padding-bottom:.55rem;
}
/* тёмная подложка вверху страницы, чтобы шапка не сливалась со светлым hero */
.hdr::before{
  content:""; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background:linear-gradient(180deg, rgba(8,9,11,.72) 0%, rgba(8,9,11,.34) 55%, transparent 100%);
  transition:opacity .4s;
}
.hdr.scrolled::before{ opacity:0; }
.brand{ display:inline-flex; align-items:center; gap:.6rem; z-index:70; }
.brand-mark{ width:2.1rem; height:2.1rem; flex:none; }
.brand-word{
  font-family:var(--font-d); font-weight:700; font-size:1.05rem; letter-spacing:.06em; line-height:1;
  display:flex; flex-direction:column;
}
.brand-word em{ font-style:normal; color:var(--red-2); display:inline; }
.brand-word{ flex-direction:row; }
.brand-word small{
  display:none;
}
.hdr-nav{ display:none; gap:2rem; }
.hdr-nav a{
  font-size:.9rem; font-weight:600; color:#cfd3d9;
  text-shadow:0 1px 3px rgba(0,0,0,.45);
  transition:color .3s; position:relative;
}
.hdr-nav a::after{
  content:""; position:absolute; left:0; bottom:-6px; height:2px; width:0;
  background:var(--red); transition:width .3s var(--ease);
}
.hdr-nav a:hover{ color:var(--ink); }
.hdr-nav a:hover::after{ width:100%; }
.hdr-cta{ display:flex; align-items:center; gap:.8rem; }

/* burger */
.burger{
  width:2.6rem; height:2.6rem; background:none; border:0; cursor:pointer;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:.45rem;
  z-index:70;
}
.burger span{
  display:block; width:1.5rem; height:2px; background:var(--ink);
  transition:transform .35s var(--ease), width .35s;
}
.burger span:last-child{ width:1rem; align-self:flex-end; margin-right:.55rem; }
body.menu-open .burger span:first-child{ transform:translateY(.33rem) rotate(45deg); }
body.menu-open .burger span:last-child{ width:1.5rem; margin-right:0; transform:translateY(-.32rem) rotate(-45deg); }

/* mobile menu */
.menu{
  position:fixed; inset:0; z-index:65; background:rgba(11,12,14,.97);
  backdrop-filter:blur(18px); -webkit-backdrop-filter:blur(18px);
  display:flex; flex-direction:column; justify-content:center; gap:2rem;
  padding:5.5rem clamp(1.5rem,7vw,4rem) 2.5rem;
  opacity:0; visibility:hidden; transition:opacity .4s var(--ease), visibility .4s;
}
body.menu-open .menu{ opacity:1; visibility:visible; }
body.menu-open{ overflow:hidden; }
.menu-list{ display:flex; flex-direction:column; gap:.35rem; overflow-y:auto; }
.menu-list a{
  font-family:var(--font-d); font-size:clamp(1.05rem,4.6vw,1.5rem); font-weight:400;
  padding:.42rem 0; color:var(--ink); display:flex; align-items:baseline; gap:.9rem;
  opacity:0; transform:translateY(14px);
  transition:opacity .45s var(--ease), transform .45s var(--ease), color .3s;
}
.menu-list a:hover{ color:var(--red-2); }
.menu-list a i{ font-style:normal; font-size:.65rem; color:var(--red-2); letter-spacing:.15em; }
.menu-list a.menu-sec{ font-family:var(--font-b); font-weight:800; font-size:1rem; color:var(--mut); margin-top:.6rem; }
body.menu-open .menu-list a{ opacity:1; transform:none; }
.menu-list a:nth-child(1){ transition-delay:.05s } .menu-list a:nth-child(2){ transition-delay:.09s }
.menu-list a:nth-child(3){ transition-delay:.13s } .menu-list a:nth-child(4){ transition-delay:.17s }
.menu-list a:nth-child(5){ transition-delay:.21s } .menu-list a:nth-child(6){ transition-delay:.25s }
.menu-list a:nth-child(7){ transition-delay:.29s } .menu-list a:nth-child(8){ transition-delay:.33s }
.menu-list a:nth-child(9){ transition-delay:.38s } .menu-list a:nth-child(10){ transition-delay:.42s }
.menu-wa{ color:var(--mut); font-weight:600; }
.menu-wa:hover{ color:#25d366; }

/* ============================================================
   HERO — full-viewport «window», frame draws itself in
   ============================================================ */
.hero{
  position:relative; min-height:100svh; display:flex; align-items:center;
  overflow:hidden; z-index:1;
}
.hero-img{
  position:absolute; inset:0; z-index:-2;
  background:url("assets/hero.webp") center 35%/cover no-repeat;
  animation:heroZoom 14s var(--ease) forwards;
  will-change:transform;
}
@keyframes heroZoom{ from{ transform:scale(1.12); } to{ transform:scale(1.0); } }
.hero-shade{
  position:absolute; inset:0; z-index:-1;
  background:
    linear-gradient(180deg, rgba(11,12,14,.62) 0%, rgba(11,12,14,.28) 40%, rgba(11,12,14,.88) 100%),
    radial-gradient(120% 90% at 20% 75%, rgba(11,12,14,.55), transparent 60%);
}

/* the aluminium frame inset in the viewport */
.hero-frame{ position:absolute; inset:clamp(.8rem,2.6vw,1.8rem); pointer-events:none; }
.hf{ position:absolute; background:linear-gradient(90deg,#5a5e66,#c9cdd4,#5a5e66); opacity:.85; }
.hf.t,.hf.b{ left:0; right:0; height:1.5px; transform:scaleX(0); }
.hf.l,.hf.r{ top:0; bottom:0; width:1.5px; transform:scaleY(0); background:linear-gradient(180deg,#5a5e66,#c9cdd4,#5a5e66); }
.hf.t{ top:0; transform-origin:left; }
.hf.b{ bottom:0; transform-origin:right; }
.hf.l{ left:0; transform-origin:bottom; }
.hf.r{ right:0; transform-origin:top; }
body.loaded .hf.t{ animation:drawX 1s .15s var(--ease) forwards; }
body.loaded .hf.r{ animation:drawY 1s .55s var(--ease) forwards; }
body.loaded .hf.b{ animation:drawX 1s .95s var(--ease) forwards; }
body.loaded .hf.l{ animation:drawY 1s 1.35s var(--ease) forwards; }
@keyframes drawX{ to{ transform:scaleX(1);} }
@keyframes drawY{ to{ transform:scaleY(1);} }
.hc{
  position:absolute; width:14px; height:14px; opacity:0;
  border:2px solid var(--alu-hi);
  transition:opacity .6s 1.9s;
}
body.loaded .hc{ opacity:.9; }
.hc.tl{ top:-1px; left:-1px; border-right:0; border-bottom:0; }
.hc.tr{ top:-1px; right:-1px; border-left:0; border-bottom:0; }
.hc.bl{ bottom:-1px; left:-1px; border-right:0; border-top:0; }
.hc.br{ bottom:-1px; right:-1px; border-left:0; border-top:0; }

/* light sweeping across the hero "glass" */
.hero-sheen{
  position:absolute; top:0; bottom:0; left:-35%; width:22%;
  background:linear-gradient(100deg, transparent, rgba(255,255,255,.09) 45%, rgba(255,255,255,.16) 50%, rgba(255,255,255,.09) 55%, transparent);
  transform:skewX(-14deg);
  animation:heroSheen 7s 2.4s ease-in-out infinite;
}
@keyframes heroSheen{
  0%{ left:-35%; } 42%{ left:118%; } 100%{ left:118%; }
}

.hero-inner{
  position:relative; z-index:2; width:100%;
  padding:7rem clamp(1.6rem,7vw,6rem) 6.5rem;
  max-width:1200px; margin-inline:auto;
}
.hero-kicker{
  font-size:.72rem; font-weight:800; letter-spacing:.3em; text-transform:uppercase;
  color:var(--alu-hi); margin-bottom:1.4rem;
}
.hero-title{
  font-family:var(--font-d); font-weight:700;
  font-size:clamp(1.35rem, 6.9vw, 4.7rem);
  line-height:1.05; letter-spacing:.005em; text-transform:uppercase;
  margin-bottom:1.5rem;
}
.hero-title .hl{ display:block; overflow:hidden; }
.hero-title .hl > span{ display:inline-block; transform:translateY(110%); }
body.loaded .hero-title .hl > span{ animation:riseUp 1s var(--ease) forwards; }
body.loaded .hero-title .hl:nth-child(2) > span{ animation-delay:.18s; }
.hl-red > span{
  color:transparent;
  background:linear-gradient(120deg,#ff5257 0%,var(--red) 45%,#8e0d12 80%);
  -webkit-background-clip:text; background-clip:text;
}
@keyframes riseUp{ to{ transform:translateY(0);} }

.reveal-line{ overflow:hidden; }
.reveal-line > span{ display:inline-block; transform:translateY(120%); opacity:0; }
body.loaded .reveal-line > span{ animation:riseUp .9s var(--ease) forwards; opacity:1; }
body.loaded .hero-kicker > span{ animation-delay:.05s; }
body.loaded .hero-sub > span{ animation-delay:.45s; }
body.loaded .hero-cta > span{ animation-delay:.65s; }
.hero-sub{
  font-size:clamp(1rem, 3.4vw, 1.25rem); color:#d6d9de; max-width:36rem;
  margin-bottom:2.2rem; text-wrap:balance;
}
.hero-cta > span{ display:flex; flex-wrap:wrap; gap:.9rem; }

.hero-scroll{
  position:absolute; bottom:clamp(1.6rem,4vw,2.6rem); left:50%; transform:translateX(-50%);
  width:1.5px; height:52px; overflow:hidden; opacity:.85;
}
.hero-scroll span{
  position:absolute; left:0; top:-40%; width:100%; height:40%;
  background:linear-gradient(180deg,transparent,var(--red-2));
  animation:scrollDrop 1.8s ease-in-out infinite;
}
@keyframes scrollDrop{ 0%{ top:-40%; } 70%,100%{ top:110%; } }

/* ============================================================
   SERVICES
   ============================================================ */
.svc-intro{
  position:relative; z-index:1;
  padding:clamp(4.5rem,12vw,8rem) clamp(1.6rem,7vw,6rem) clamp(1rem,4vw,2rem);
  max-width:1200px; margin-inline:auto;
}
.svc{
  position:relative; z-index:1;
  padding:clamp(3.2rem,9vw,6.5rem) clamp(1.6rem,7vw,6rem);
  max-width:1200px; margin-inline:auto;
  scroll-margin-top:4.5rem;
  display:grid; grid-template-columns:minmax(0,1fr); gap:1.9rem; align-items:center;
}
.svc-media{ position:relative; }
.svc-num{
  position:absolute; top:-1.9rem; right:-.4rem; z-index:2;
  font-family:var(--font-d); font-weight:700; font-size:clamp(3.2rem,11vw,5.4rem); line-height:1;
  color:transparent; -webkit-text-stroke:1px rgba(216,219,224,.28);
  user-select:none; pointer-events:none;
}

/* aluminium frame around each photo */
.frame{
  position:relative; padding:clamp(7px,1.1vw,10px);
  background:var(--metal);
  box-shadow:
    0 24px 60px rgba(0,0,0,.5),
    inset 0 1px 0 rgba(255,255,255,.35),
    inset 0 -1px 0 rgba(0,0,0,.6);
}
.frame::after{ /* inner shadow lip of the profile */
  content:""; position:absolute; inset:clamp(7px,1.1vw,10px);
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.55), inset 0 0 22px rgba(0,0,0,.45);
  pointer-events:none; z-index:3;
}
.glass{
  position:relative; overflow:hidden; background:var(--bg-3);
  aspect-ratio:4/3; perspective:900px;
}
.glass img{ width:100%; height:100%; object-fit:cover; }
.glass-tall{ aspect-ratio:3.4/4; }
.glass-tall img{ object-position:center 30%; }
.glass-sky{ aspect-ratio:4/3; }
.glass-sky .sky{ position:absolute; inset:0; width:100%; height:100%; }

/* sheen sweep inside each glass, runs once when in view */
.sheen{
  position:absolute; top:-10%; bottom:-10%; left:-45%; width:30%; z-index:2;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.13) 48%,rgba(255,255,255,.22) 52%,transparent);
  transform:skewX(-16deg); pointer-events:none;
}
.svc.on .sheen, .lead.on .sheen{ animation:paneSheen 1.6s .9s var(--ease) forwards; }
@keyframes paneSheen{ to{ left:130%; } }

/* --- mechanism overlays (the "sash") --- */
.pane{
  position:absolute; inset:0; z-index:1;
  background:linear-gradient(115deg, rgba(214,222,235,.16), rgba(160,170,185,.06) 40%, rgba(230,238,248,.18));
  backdrop-filter:blur(2px); -webkit-backdrop-filter:blur(2px);
  border:2px solid rgba(190,196,205,.75);
  box-shadow:inset 0 0 0 1px rgba(30,32,36,.5), 0 6px 30px rgba(0,0,0,.35);
  transition:transform 1.5s var(--ease), opacity 1.2s var(--ease);
  will-change:transform;
}
/* 01 swing open like a casement */
[data-anim="swing"] .pane-full{ transform-origin:left center; }
[data-anim="swing"].on .pane-full{ transform:rotateY(-78deg); opacity:.15; }
/* 03 slide sideways */
.pane-slide{ right:auto; width:58%; }
[data-anim="slide"].on .pane-slide{ transform:translateX(88%); opacity:.35; }
/* 04 bi-fold: two leaves fold outwards */
.pane-foldl{ right:50%; transform-origin:left center; }
.pane-foldr{ left:50%; transform-origin:right center; transition-delay:.12s; }
[data-anim="fold"].on .pane-foldl{ transform:rotateY(-72deg); opacity:.18; }
[data-anim="fold"].on .pane-foldr{ transform:rotateY(72deg); opacity:.18; }
/* 06 part: two leaves slide apart */
.pane-partl{ right:50%; }
.pane-partr{ left:50%; }
[data-anim="part"].on .pane-partl{ transform:translateX(-101%); }
[data-anim="part"].on .pane-partr{ transform:translateX(101%); }
/* 07 rise: guillotine pane lifts */
[data-anim="rise"].on .pane-rise{ transform:translateY(-92%); }
/* 02 expand: mullions dissolve into a panorama */
.mull{ position:absolute; z-index:1; background:linear-gradient(180deg,#3c4047,#b7bcc4,#3c4047); transition:opacity 1s var(--ease), transform 1.2s var(--ease); }
.mull.mv{ top:0; bottom:0; width:7px; margin-left:-3.5px; }
.mull.mh{ left:0; right:0; height:7px; margin-top:-3.5px; background:linear-gradient(90deg,#3c4047,#b7bcc4,#3c4047); }
[data-anim="expand"].on .mull{ opacity:0; }
[data-anim="expand"].on .mull.mv{ transform:scaleY(.6); }
[data-anim="expand"].on .mull.mh{ transform:scaleX(.6); }
/* 05 grid: facade glazes in cell by cell */
.cell{
  position:absolute; z-index:1; width:33.4%; height:33.4%;
  background:#1a1d22; border:1px solid rgba(190,196,205,.25);
  transition:opacity .7s var(--ease) calc(var(--d) * .12s), transform .7s var(--ease) calc(var(--d) * .12s);
}
.cell:nth-child(2){ left:0;      top:0; }    .cell:nth-child(3){ left:33.3%; top:0; }    .cell:nth-child(4){ left:66.6%; top:0; }
.cell:nth-child(5){ left:0;      top:33.3%;} .cell:nth-child(6){ left:33.3%; top:33.3%;} .cell:nth-child(7){ left:66.6%; top:33.3%;}
.cell:nth-child(8){ left:0;      top:66.6%;} .cell:nth-child(9){ left:33.3%; top:66.6%;} .cell:nth-child(10){ left:66.6%; top:66.6%;}
[data-anim="grid"].on .cell{ opacity:0; transform:scale(.92); }
/* 08 mesh: mosquito mesh weaves in */
.mesh-overlay{
  position:absolute; inset:0; z-index:1; opacity:0; transform:translateY(-100%);
  background:
    repeating-linear-gradient(90deg, rgba(220,224,230,.28) 0 1px, transparent 1px 7px),
    repeating-linear-gradient(0deg, rgba(220,224,230,.28) 0 1px, transparent 1px 7px);
  transition:opacity 1.1s var(--ease) .2s, transform 1.3s var(--ease) .2s;
}
[data-anim="mesh"].on .mesh-overlay{ opacity:.85; transform:translateY(0); }

.svc-body p{ color:var(--mut); max-width:30rem; }
.chips{
  list-style:none; display:flex; flex-wrap:wrap; gap:.5rem; margin:1.1rem 0 1.5rem;
}
.chips li{
  font-size:.78rem; font-weight:600; letter-spacing:.04em; color:var(--alu-hi);
  padding:.38rem .8rem; border-radius:2px;
  background:rgba(216,219,224,.06);
  box-shadow:inset 0 0 0 1px rgba(216,219,224,.22);
}
.svc-link{
  display:inline-flex; align-items:center; gap:.6rem;
  font-weight:800; font-size:.95rem; color:var(--red-2);
  transition:gap .3s var(--ease), color .3s;
}
.svc-link svg{ width:1.2rem; height:1.2rem; transition:transform .3s var(--ease); }
.svc-link:hover{ color:#ff5257; gap:.9rem; }

/* ============================================================
   PROCESS
   ============================================================ */
.proc{
  position:relative; z-index:1;
  padding:clamp(4.5rem,12vw,8rem) clamp(1.6rem,7vw,6rem);
  max-width:1200px; margin-inline:auto;
  scroll-margin-top:4.5rem;
}
.proc-rail{
  position:absolute; left:calc(clamp(1.6rem,7vw,6rem) + .55rem); top:14rem; bottom:6rem;
  width:2px; background:rgba(216,219,224,.12);
}
.proc-fill{
  position:absolute; top:0; left:0; width:100%; height:0%;
  background:linear-gradient(180deg,var(--red-2),var(--red));
  box-shadow:0 0 12px rgba(227,56,64,.8);
  transition:height .25s linear;
}
.steps{
  list-style:none; margin-top:3rem;
  display:flex; flex-direction:column; gap:2.6rem;
  padding-left:2.4rem;
}
.step{ position:relative; max-width:30rem; }
.step::before{
  content:""; position:absolute; left:-2.35rem; top:.5rem;
  width:11px; height:11px; border-radius:50%;
  background:var(--bg); border:2px solid var(--alu);
  transition:border-color .4s, box-shadow .4s;
}
.step.on::before{ border-color:var(--red-2); box-shadow:0 0 10px rgba(227,56,64,.7); }
.step-num{
  font-family:var(--font-d); font-weight:700; font-size:1.9rem;
  color:transparent; background:var(--metal); -webkit-background-clip:text; background-clip:text;
  display:block; margin-bottom:.3rem;
}
.step h3{ font-family:var(--font-d); font-weight:500; font-size:1.1rem; margin-bottom:.4rem; }
.step p{ color:var(--mut); font-size:.95rem; }

/* ============================================================
   WHY
   ============================================================ */
.why{
  position:relative; z-index:1;
  padding:clamp(4rem,11vw,7.5rem) clamp(1.6rem,7vw,6rem);
  max-width:1200px; margin-inline:auto;
  scroll-margin-top:4.5rem;
}
.why-grid{
  margin-top:2.6rem;
  display:grid; grid-template-columns:1fr; gap:1rem;
}
.why-card{
  position:relative; padding:1.6rem 1.5rem;
  background:linear-gradient(160deg, rgba(255,255,255,.045), rgba(255,255,255,.015));
  border-radius:3px;
  box-shadow:inset 0 0 0 1px rgba(216,219,224,.14);
  transition:transform .4s var(--ease), box-shadow .4s;
  overflow:hidden;
}
.why-card::before{ /* red profile edge */
  content:""; position:absolute; left:0; top:0; bottom:0; width:3px;
  background:linear-gradient(180deg,var(--red-2),var(--red));
  transform:scaleY(0); transform-origin:top; transition:transform .6s var(--ease);
}
.why-card:hover{ transform:translateY(-4px); box-shadow:inset 0 0 0 1px rgba(216,219,224,.3), 0 18px 40px rgba(0,0,0,.35); }
.why-card:hover::before, .why-card.on::before{ transform:scaleY(1); }
.why-card svg{ width:2.1rem; height:2.1rem; color:var(--alu-hi); margin-bottom:.9rem; }
.why-card h3{ font-family:var(--font-d); font-weight:500; font-size:1rem; margin-bottom:.5rem; }
.why-card p{ color:var(--mut); font-size:.92rem; }

/* ============================================================
   LEAD FORM
   ============================================================ */
.lead{
  position:relative; z-index:1;
  padding:clamp(4rem,11vw,8rem) clamp(1.6rem,7vw,6rem);
  max-width:1200px; margin-inline:auto;
  scroll-margin-top:4rem;
  display:grid; grid-template-columns:minmax(0,1fr); gap:2.4rem;
}
.lead-media{ position:relative; }
.frame-city .glass{ aspect-ratio:16/10; }
.lead-cap{
  margin-top:.9rem; color:var(--dim); font-size:.85rem; letter-spacing:.02em;
}
.lead form{ display:flex; flex-direction:column; gap:1.1rem; margin-top:1.6rem; }
.lead label{ display:flex; flex-direction:column; gap:.45rem; }
.lead label > span{ font-size:.8rem; font-weight:800; letter-spacing:.08em; text-transform:uppercase; color:var(--alu-hi); }
.lead label > span em{ font-style:normal; color:var(--dim); text-transform:none; letter-spacing:0; font-weight:500; }
.lead input, .lead select, .lead textarea{
  font-family:var(--font-b); font-size:1rem; color:var(--ink);
  background:rgba(255,255,255,.045); border:0; border-radius:2px;
  box-shadow:inset 0 0 0 1px rgba(216,219,224,.22);
  padding:.9rem 1rem; width:100%;
  transition:box-shadow .3s, background .3s;
  appearance:none; -webkit-appearance:none;
}
.lead select{
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8'><path d='M1 1l5 5 5-5' fill='none' stroke='%239ba0a8' stroke-width='2'/></svg>");
  background-repeat:no-repeat; background-position:right 1rem center;
}
.lead input::placeholder, .lead textarea::placeholder{ color:var(--dim); }
.lead input:focus, .lead select:focus, .lead textarea:focus{
  outline:none; background:rgba(255,255,255,.07);
  box-shadow:inset 0 0 0 1.5px var(--red-2);
}
.lead textarea{ resize:vertical; min-height:5.2rem; }
.lead-note{ font-size:.82rem; color:var(--dim); text-align:center; }

/* ============================================================
   FOOTER
   ============================================================ */
.ftr{
  position:relative; z-index:1;
  background:var(--bg-2);
  padding:3.5rem clamp(1.6rem,7vw,6rem) 6.5rem;
  box-shadow:0 -1px 0 rgba(216,219,224,.07);
}
.ftr-top{
  max-width:1200px; margin-inline:auto;
  display:flex; flex-direction:column; gap:2.2rem;
}
.ftr .brand-word{ flex-direction:column; align-items:flex-start; gap:.2rem; }
.ftr .brand-word small{
  display:block; font-family:var(--font-b); font-weight:600; font-size:.62rem;
  letter-spacing:.28em; text-transform:uppercase; color:var(--dim);
}
.ftr-contact{ display:flex; flex-direction:column; gap:.4rem; }
.ftr-phone{ font-family:var(--font-d); font-size:1.25rem; font-weight:500; }
.ftr-phone:hover{ color:var(--red-2); }
.ftr-wa{ color:#25d366; font-weight:700; }
.ftr-contact p{ color:var(--dim); font-size:.9rem; }
.ftr-nav{ display:grid; grid-template-columns:repeat(2,1fr); gap:.55rem 1.5rem; }
.ftr-nav a{ color:var(--mut); font-size:.9rem; transition:color .3s; }
.ftr-nav a:hover{ color:var(--ink); }
.ftr-bottom{
  max-width:1200px; margin:2.8rem auto 0; color:var(--dim); font-size:.8rem;
}

/* WhatsApp FAB */
.wa-fab{
  position:fixed; right:1.1rem; bottom:1.1rem; z-index:55;
  width:3.4rem; height:3.4rem; border-radius:50%;
  background:#25d366; color:#fff;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 28px rgba(37,211,102,.4);
  transition:transform .3s var(--ease);
}
.wa-fab svg{ width:1.9rem; height:1.9rem; }
.wa-fab::after{
  content:""; position:absolute; inset:0; border-radius:50%;
  border:2px solid rgba(37,211,102,.7);
  animation:waPulse 2.2s ease-out infinite;
}
@keyframes waPulse{ 0%{ transform:scale(1); opacity:1; } 100%{ transform:scale(1.55); opacity:0; } }
.wa-fab:hover{ transform:scale(1.08); }

/* very narrow phones: compact header */
@media (max-width: 419px){
  .hdr{ gap:.5rem; }
  .brand-mark{ width:1.8rem; height:1.8rem; }
  .brand-word{ font-size:.92rem; }
  .btn-s{ padding:.55rem .75rem; font-size:.76rem; }
  .hdr-cta{ gap:.4rem; }
}

/* ============================================================
   SCROLL REVEALS
   ============================================================ */
.io-fade{
  opacity:0; transform:translateY(26px);
  transition:opacity .9s var(--ease), transform .9s var(--ease);
}
.io-fade.on{ opacity:1; transform:none; }
.svc .svc-body{ opacity:0; transform:translateY(26px); transition:opacity .9s var(--ease) .2s, transform .9s var(--ease) .2s; }
.svc.on .svc-body{ opacity:1; transform:none; }
.svc .frame{ opacity:0; transform:translateY(18px) scale(.985); transition:opacity .9s var(--ease), transform .9s var(--ease); }
.svc.on .frame, .lead .frame{ opacity:1; transform:none; }

/* ============================================================
   DESKTOP
   ============================================================ */
@media (min-width: 760px){
  .hdr-nav{ display:flex; }
  .burger{ display:none; }
  .menu{ display:none; }
  .svc{ grid-template-columns:minmax(0,1.15fr) minmax(0,1fr); gap:clamp(2.5rem,5vw,4.5rem); }
  .svc:nth-of-type(even) .svc-media{ order:2; }
  .svc-num{ top:auto; bottom:-2.4rem; right:auto; left:-1rem; }
  .svc:nth-of-type(even) .svc-num{ left:auto; right:-1rem; }
  .why-grid{ grid-template-columns:repeat(2,1fr); gap:1.2rem; }
  .steps{
    flex-direction:row; gap:2rem; padding-left:0; margin-top:4rem;
  }
  .step{ flex:1; padding-top:1.6rem; }
  .step::before{ left:.1rem; top:0; }
  .proc-rail{ display:none; }
  .lead{ grid-template-columns:minmax(0,1.1fr) minmax(0,1fr); align-items:center; gap:clamp(2.5rem,5vw,5rem); }
  .ftr-top{ flex-direction:row; justify-content:space-between; align-items:flex-start; }
  .ftr{ padding-bottom:3.5rem; }
  .wa-fab{ right:1.6rem; bottom:1.6rem; }
}
@media (min-width: 1100px){
  .why-grid{ grid-template-columns:repeat(4,1fr); }
}

/* QA mode (?static): jump every animation to its final state */
body.static .hero{ min-height:640px; }
body.static *, body.static *::before, body.static *::after{
  transition-duration:0s !important; transition-delay:0s !important;
  animation-duration:0s !important; animation-delay:0s !important;
  animation-iteration-count:1 !important;
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; }
  .hero-img{ animation:none; transform:none; }
  .hero-sheen, .sheen, .wa-fab::after, .hero-scroll{ display:none; }
  .hf.t,.hf.b{ transform:scaleX(1); } .hf.l,.hf.r{ transform:scaleY(1); }
  .hc{ opacity:.9; }
  .hero-title .hl > span, .reveal-line > span{ transform:none; opacity:1; }
  .io-fade, .svc .svc-body, .svc .frame{ opacity:1; transform:none; }
  .pane, .mull, .cell{ display:none; }
  .mesh-overlay{ opacity:.85; transform:none; }
}