/* =============================================================
   Balaji Enterprises HVAC — Design System
   Palette idea: Mumbai heat (flame/red) vs. conditioned cool (frost/sky)
   ============================================================= */

/* ---------- Tokens ---------- */
:root{
  --flame:#F47B20;
  --flame-dark:#D9660F;
  --brand-red:#D6362B;
  --brand-red-dark:#B32B22;
  --ink:#1B2430;
  --ink-900:#11161D;
  --ink-700:#2A3646;
  --frost:#EEF4F7;
  --frost-dark:#DCE8EE;
  --sky:#7FB6D9;
  --sky-dark:#4E8FBB;
  --paper:#FFFFFF;
  --steel:#5C6B7A;
  --steel-light:#8894A0;
  --line: rgba(27,36,48,.14);
  --line-frost: rgba(27,36,48,.09);
  --success:#2E7D53;
  --error:#C23B2E;

  --font-display:'Archivo Expanded', sans-serif;
  --font-body:'Public Sans', sans-serif;
  --font-mono:'IBM Plex Mono', monospace;

  --radius-sm:4px;
  --radius-md:10px;
  --radius-lg:20px;

  --shadow-sm: 0 4px 14px -8px rgba(17,22,29,.25);
  --shadow-md: 0 16px 40px -20px rgba(17,22,29,.35);
  --shadow-lg: 0 28px 64px -24px rgba(17,22,29,.4);

  --container: 1200px;
  --space-xs: .5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 8rem;

  --header-h: 76px;
}

/* ---------- Reset ---------- */
*, *::before, *::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top: calc(var(--header-h) + 16px); }
body{
  margin:0;
  font-family: var(--font-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.6;
  font-size:16px;
}
img{ max-width:100%; display:block; }
ul, ol{ margin:0; padding:0; list-style:none; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; }
input, select, textarea{ font-family:inherit; font-size:1rem; }
h1,h2,h3,h4,p,figure{ margin:0; }

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

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *, *::before, *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* ---------- Typography ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--brand-red-dark);
  font-weight:600;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--flame);
  display:inline-block;
}

h1, .h1, h2, .h2, h3, .h3, .brand, .stat .num, .brand-tile .wordmark, .testimonial .attrib b, .marquee-track span{
  font-stretch: expanded;
}

h1, .h1{
  font-family:var(--font-display);
  font-weight:800;
  font-size: clamp(2.4rem, 4.6vw, 4.2rem);
  line-height:1.04;
  letter-spacing:-.01em;
  color:var(--ink-900);
}
h2, .h2{
  font-family:var(--font-display);
  font-weight:700;
  font-size: clamp(1.9rem, 3.2vw, 2.75rem);
  line-height:1.1;
  color:var(--ink-900);
}
h3, .h3{
  font-family:var(--font-display);
  font-weight:700;
  font-size: clamp(1.2rem, 1.6vw, 1.5rem);
  line-height:1.25;
  color:var(--ink-900);
}
.lede{
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color:var(--steel);
  max-width:52ch;
}
.section-head{
  max-width: 640px;
  margin-bottom: var(--space-lg);
}
.section-head .eyebrow{ margin-bottom: .9rem; }
.section-head p{ margin-top: 1rem; color:var(--steel); }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

.mono-figure{
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- Layout ---------- */
.container{
  width:100%;
  max-width: var(--container);
  margin:0 auto;
  padding: 0 1.5rem;
}
.section{ padding: var(--space-2xl) 0; }
.section-sm{ padding: var(--space-xl) 0; }
.bg-frost{ background: var(--frost); }
.bg-ink{ background: var(--ink-900); color: var(--frost); }
.bg-ink h1, .bg-ink h2, .bg-ink h3{ color:var(--paper); }
.bg-ink .lede{ color: var(--sky); }

.grid{ display:grid; gap: 1.75rem; }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }

@media (max-width: 980px){
  .grid-3{ grid-template-columns: repeat(2, 1fr); }
  .grid-4{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; }
}

/* reveal-on-scroll */
.reveal{
  opacity:0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible{ opacity:1; transform:none; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.6rem;
  padding: .95rem 1.7rem;
  border-radius: var(--radius-md);
  font-weight:700;
  font-size:.98rem;
  border:2px solid transparent;
  cursor:pointer;
  transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{ background:var(--flame); color:var(--ink-900); box-shadow: var(--shadow-sm); }
.btn-primary:hover{ background:var(--flame-dark); box-shadow: var(--shadow-md); }
.btn-outline{ background:transparent; border-color: currentColor; color:inherit; }
.btn-outline:hover{ background: rgba(255,255,255,.08); }
.btn-ghost-dark{ background:transparent; border-color: var(--ink-900); color:var(--ink-900); }
.btn-ghost-dark:hover{ background: var(--ink-900); color:var(--paper); }
.btn-sm{ padding:.6rem 1.1rem; font-size:.88rem; }
.btn-block{ width:100%; }
.btn-row{ display:flex; gap:1rem; flex-wrap:wrap; align-items:center; }

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top:0;
  z-index: 500;
  /* Solid, not backdrop-filter: this element is position:sticky and present
     on every page, so a blur here forces a backdrop resample on every single
     scroll frame site-wide — the same cost already identified and avoided
     in css/scroll-video.css for the story video card. */
  background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--line-frost);
  transition: box-shadow .25s ease;
}
.site-header.is-scrolled{ box-shadow: var(--shadow-sm); }
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height: var(--header-h);
  gap: 1.5rem;
}
.brand{
  display:flex;
  align-items:center;
  gap:.7rem;
  font-family: var(--font-display);
  font-weight:800;
  font-size:1.05rem;
  color:var(--ink-900);
}
.brand-mark{
  width:38px; height:38px;
  border-radius: 10px;
  background: linear-gradient(155deg, var(--brand-red), var(--flame));
  position:relative;
  flex:none;
  display:grid;
  place-items:center;
}
.brand-mark svg{ width:22px; height:22px; }
.brand small{
  display:block;
  font-family:var(--font-body);
  font-weight:600;
  font-size:.66rem;
  letter-spacing:.05em;
  text-transform:uppercase;
  color:var(--steel);
}

.main-nav{ display:flex; align-items:center; gap:2rem; }
.main-nav ul{ display:flex; gap:1.8rem; }
.main-nav a{
  font-weight:600;
  font-size:.94rem;
  color:var(--ink-700);
  position:relative;
  padding: .3rem 0;
}
.main-nav a::after{
  content:"";
  position:absolute;
  left:0; bottom:-2px;
  width:0; height:2px;
  background:var(--flame);
  transition: width .2s ease;
}
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after{ width:100%; }
.main-nav a[aria-current="page"]{ color:var(--brand-red-dark); }

.header-controls{ display:flex; align-items:center; gap:.9rem; }
.header-actions{ display:none; }
.call-chip{
  display:flex; align-items:center; gap:.5rem;
  font-family:var(--font-mono);
  font-weight:600;
  font-size:.92rem;
  color:var(--ink-900);
}
.call-chip svg{ width:18px; height:18px; color:var(--flame); flex:none; }

.nav-toggle{
  display:none;
  width:44px; height:44px;
  border:none;
  background:transparent;
  cursor:pointer;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
}
.nav-toggle span{
  width:24px; height:2px; background:var(--ink-900); border-radius:2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 940px){
  .main-nav{
    position:fixed;
    inset: var(--header-h) 0 0 0;
    background: var(--paper);
    flex-direction:column;
    align-items:flex-start;
    padding: 2rem 1.5rem;
    transform: translateX(100%);
    transition: transform .3s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{ transform: translateX(0); }
  .main-nav ul{ flex-direction:column; gap:0; width:100%; }
  .main-nav ul li{ width:100%; border-bottom:1px solid var(--line-frost); }
  .main-nav ul li a{ display:block; padding:1.1rem .2rem; }
  .main-nav .header-actions{ display:flex; flex-direction:column; gap:1rem; margin-top:1.5rem; width:100%; }
  .main-nav .btn{ width:100%; }
  .call-chip.desktop-only{ display:none; }
  .nav-toggle{ display:flex; }
}

/* ---------- Hero (home): cinematic full-bleed video, centered content ---------- */
.hero{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  display:flex;
  align-items:center;
  justify-content:center;
  min-height:100vh;
  background:var(--ink-900);
}
.hero-inner{ position:relative; z-index:2; width:100%; }
.hero-content{
  max-width:1180px;
  margin:0 auto;
  padding:6rem 1.5rem;
  text-align:center;
}
.hero-content h1{ margin:1.1rem 0 1.3rem; }

@media (max-width:1199px){ .hero{ min-height:95vh; } }
@media (max-width:980px){ .hero{ min-height:95vh; } }
@media (max-width:640px){
  .hero{ min-height:100vh; }
  .hero-content{ padding:4rem 1.25rem; }
}

/* ---------- Trust strip ---------- */
.trust-strip{
  background: var(--ink-900);
  color: var(--paper);
  padding: 1.6rem 0;
}
.trust-strip ul{
  display:flex;
  flex-wrap:wrap;
  gap: 1rem 2.6rem;
  justify-content:center;
  align-items:center;
}
.trust-strip li{
  display:flex; align-items:center; gap:.6rem;
  font-family: var(--font-mono);
  font-size:.86rem;
  font-weight:500;
  color: var(--frost);
}
.trust-strip li svg{ width:16px; height:16px; color:var(--flame); flex:none; }

/* ---------- Stat strip ---------- */
.stat-strip{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align:center;
}
.stat{
  background: var(--paper);
  border:1px solid var(--line-frost);
  border-radius: var(--radius-lg);
  padding: 2.2rem 1.2rem;
}
.stat .num{
  font-family: var(--font-display);
  font-weight:800;
  font-size: clamp(2rem, 3vw, 2.7rem);
  color: var(--brand-red);
  display:block;
}
.stat .label{ font-size:.86rem; color:var(--steel); margin-top:.4rem; display:block; font-weight:600; }
@media (max-width:820px){ .stat-strip{ grid-template-columns: repeat(2,1fr); } }

/* ---------- Cards: services ---------- */
.card{
  background: var(--paper);
  border: 1px solid var(--line-frost);
  border-radius: var(--radius-lg);
  padding: 0;
  overflow:hidden;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }
.card-thumb{
  aspect-ratio: 16/10;
  overflow:hidden;
  background: var(--frost);
}
.card-thumb img{
  width:100%; height:100%;
  object-fit:cover;
  display:block;
  transition: transform .5s ease;
}
.card:hover .card-thumb img{ transform: scale(1.07); }
.card-body{ padding: 1.6rem 2rem 2rem; }
.card-body h3{ margin-bottom:.6rem; }
.card-body p{ color:var(--steel); font-size:.96rem; }
.card-body .card-link{
  display:inline-flex; align-items:center; gap:.4rem;
  margin-top:1.2rem;
  font-weight:700; font-size:.9rem; color:var(--brand-red-dark);
}

/* ---------- Process steps ---------- */
.process{
  display:grid;
  grid-template-columns: repeat(4,1fr);
  gap: 1.5rem;
  counter-reset: step;
}
.process-step{
  position:relative;
  padding: 2rem 1.5rem 1.5rem;
  border: 1px solid var(--line-frost);
  border-radius: var(--radius-lg);
  background: var(--paper);
}
.process-step::before{
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size:.85rem;
  color: var(--flame);
  font-weight:700;
  display:block;
  margin-bottom: 1rem;
}
.process-step:not(:last-child)::after{
  content:"";
  position:absolute;
  right:-1.15rem; top:2.4rem;
  width:1rem; height:1px;
  background: var(--line);
  display:none;
}
@media (min-width:981px){ .process-step:not(:last-child)::after{ display:block; } }
@media (max-width:980px){ .process{ grid-template-columns: repeat(2,1fr); } }
@media (max-width:640px){ .process{ grid-template-columns: 1fr; } }

/* ---------- Testimonials ---------- */
.testimonial{
  background: var(--frost);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  position:relative;
}
.testimonial::before{
  content:"\201C";
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: var(--sky-dark);
  line-height:1;
  display:block;
  margin-bottom: .4rem;
}
.testimonial p.quote{ font-size:1.02rem; color: var(--ink-700); }
.testimonial .attrib{ margin-top:1.4rem; display:flex; flex-direction:column; }
.testimonial .attrib b{ font-family:var(--font-display); font-size:.95rem; }
.testimonial .attrib span{ font-size:.82rem; color:var(--steel); }

/* ---------- Award callout ---------- */
.award-callout{
  display:flex;
  align-items:center;
  gap: 2.2rem;
  background: linear-gradient(120deg, var(--ink-900), var(--ink-700));
  color: var(--paper);
  border-radius: var(--radius-lg);
  padding: 2.4rem;
}
.award-media{
  flex:none;
  width:120px; height:120px;
  border-radius: var(--radius-md);
  background: var(--paper);
  box-shadow: 0 8px 20px rgba(17,22,29,.25);
  display:grid; place-items:center;
  color: var(--brand-red);
  padding:10px;
  overflow:hidden;
}
.award-media svg{ width:56px; height:56px; }
.award-media img{
  width:100%; height:100%;
  object-fit:contain;
  border-radius: calc(var(--radius-md) - 4px);
}
.award-callout h3{ color:var(--paper); }
.award-callout p{ color: var(--sky); margin-top:.5rem; }
@media (max-width:700px){ .award-callout{ flex-direction:column; text-align:center; } }

/* ---------- CTA band ---------- */
.cta-band{
  background: var(--ink-900);
  color: var(--paper);
  border-radius: var(--radius-lg);
  padding: 3rem;
  border-left: 6px solid var(--flame);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:2rem;
  flex-wrap:wrap;
}
.cta-band h2{ color:var(--paper); }
.cta-band .btn-outline{ border-color: rgba(255,255,255,.5); color:var(--paper); }
.cta-band .btn-outline:hover{ border-color:var(--paper); background: rgba(255,255,255,.08); }
@media (max-width:700px){ .cta-band{ padding: 2.2rem 1.6rem; } }

/* ---------- Brand grid ---------- */
.bg-cloud{ background:#F8F9FA; }
.brand-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}
.brand-card{
  --accent: var(--flame);
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  height:100%;
  padding: 2.1rem 1.4rem 1.7rem;
  text-align:center;
  background: var(--paper);
  border: 1px solid var(--line-frost);
  border-top: 4px solid var(--accent);
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
  overflow:hidden;
  isolation:isolate;
  transition: transform .3s ease, box-shadow .3s ease;
}
.brand-card::before{
  content:"";
  position:absolute;
  inset: -10% -20% auto -20%;
  height: 55%;
  background: radial-gradient(circle, var(--accent) 0%, transparent 72%);
  opacity:0;
  filter: blur(18px);
  transition: opacity .3s ease;
  z-index:-1;
}
.brand-card::after{
  content:"";
  position:absolute;
  left:50%; bottom:0;
  width:0; height:3px;
  background: var(--accent);
  border-radius: 3px 3px 0 0;
  transform: translateX(-50%);
  transition: width .3s ease;
}
.brand-card:hover{ transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.brand-card:hover::before{ opacity:.14; }
.brand-card:hover::after{ width:56%; }
.brand-card-logo{
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  height:60px;
  margin-bottom:1.5rem;
}
.brand-card-logo img{
  max-width:150px;
  max-height:60px;
  width:auto;
  height:auto;
  object-fit:contain;
  transition: transform .3s ease;
}
.brand-card:hover .brand-card-logo img{ transform: scale(1.05); }
.brand-card h3{
  font-size:1.02rem;
  margin-bottom:.3rem;
}
.brand-card .country{
  display:block;
  font-family: var(--font-mono);
  font-size:.72rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--steel);
}
.brand-card .tagline{
  display:block;
  font-size:.78rem;
  font-weight:700;
  color:var(--accent);
  margin:.6rem 0 1.3rem;
}
.brand-card .support-badge{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.45rem .75rem;
  border-radius:100px;
  background: var(--frost);
  border:1px solid var(--line-frost);
  color:var(--ink-700);
  font-size:.68rem;
  font-weight:600;
  letter-spacing:.01em;
  line-height:1.3;
}
.brand-card .support-badge svg{ width:12px; height:12px; color:var(--accent); flex:none; }
@media (max-width:900px){ .brand-grid{ grid-template-columns: repeat(2,1fr); gap:1.3rem; } }
@media (max-width:560px){ .brand-grid{ grid-template-columns: 1fr; } }
@media (prefers-reduced-motion: reduce){
  .brand-card, .brand-card::after, .brand-card::before, .brand-card-logo img{ transition:none; }
}
.brand-grid .brand-card.reveal{ transition-delay: var(--reveal-delay, 0s); }
.brand-grid .brand-card:nth-child(4n+2){ --reveal-delay: .08s; }
.brand-grid .brand-card:nth-child(4n+3){ --reveal-delay: .16s; }
.brand-grid .brand-card:nth-child(4n+4){ --reveal-delay: .24s; }
@media (max-width:900px){
  .brand-grid .brand-card:nth-child(4n+3){ --reveal-delay: 0s; }
  .brand-grid .brand-card:nth-child(4n+4){ --reveal-delay: .08s; }
  .brand-grid .brand-card:nth-child(2n+1){ --reveal-delay: 0s; }
  .brand-grid .brand-card:nth-child(2n){ --reveal-delay: .08s; }
}
@media (max-width:560px){
  .brand-grid .brand-card{ --reveal-delay: 0s; }
}

.marquee{
  overflow:hidden;
  position:relative;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track{
  display:flex;
  gap: 3rem;
  width:max-content;
  animation: scroll-left 32s linear infinite;
}
.marquee-track span{
  font-family:var(--font-display);
  font-weight:700;
  font-size:1.1rem;
  color: var(--steel);
  white-space:nowrap;
}
@keyframes scroll-left{ to{ transform: translateX(-50%); } }

/* ---------- Values ---------- */
.values{ display:grid; grid-template-columns: repeat(3,1fr); gap:1.5rem; }
.value-card{
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  color:var(--paper);
  position:relative;
  overflow:hidden;
  min-height:200px;
  display:flex; flex-direction:column; justify-content:flex-end;
}
.value-card h3{ color:var(--paper); }
.value-card p{ color: rgba(255,255,255,.85); font-size:.9rem; margin-top:.5rem; }
.value-card.v1{ background: linear-gradient(150deg, var(--brand-red), #8f231c); }
.value-card.v2{ background: linear-gradient(150deg, var(--ink-700), var(--ink-900)); }
.value-card.v3{ background: linear-gradient(150deg, var(--sky-dark), #2f6d94); }
@media (max-width:820px){ .values{ grid-template-columns: 1fr; } }

/* ---------- Timeline ---------- */
.timeline{ position:relative; padding-left: 2rem; border-left: 2px solid var(--line); }
.timeline-item{ position:relative; padding-bottom: 2.4rem; }
.timeline-item:last-child{ padding-bottom:0; }
.timeline-item::before{
  content:"";
  position:absolute;
  left:-2.42rem; top:.3rem;
  width:14px; height:14px;
  border-radius:50%;
  background: var(--flame);
  border:3px solid var(--paper);
  box-shadow: 0 0 0 2px var(--flame);
}
.timeline-item .year{ font-family:var(--font-mono); color:var(--brand-red-dark); font-weight:700; font-size:.85rem; }
.timeline-item h3{ margin:.35rem 0 .4rem; }
.timeline-item p{ color:var(--steel); max-width:60ch; }

/* ---------- Image placeholder slots ---------- */
.img-slot{
  background: linear-gradient(150deg, var(--frost), var(--frost-dark));
  border: 1px solid var(--line-frost);
  border-radius: var(--radius-lg);
  display:flex;
  align-items:center;
  justify-content:center;
  color: var(--steel);
  font-size:.82rem;
  font-weight:600;
  text-align:center;
  gap:.5rem;
  flex-direction:column;
  overflow:hidden;
  position:relative;
}
.img-slot svg{ width:34px; height:34px; color: var(--sky-dark); opacity:.7; }
.img-slot span{ padding: 0 1rem; }
.img-slot.ratio-3x4{ aspect-ratio: 3/4; }
.img-slot.ratio-3x2{ aspect-ratio: 3/2; }
.img-slot.ratio-4x3{ aspect-ratio: 4/3; }
.img-slot.ratio-16x9{ aspect-ratio: 16/9; }

/* ---------- Photo frame: real content photography ---------- */
.photo-frame{
  border-radius: var(--radius-lg);
  overflow:hidden;
  box-shadow: var(--shadow-sm);
  background: var(--frost);
}
.photo-frame img{ width:100%; height:100%; object-fit:cover; display:block; }
.photo-frame.ratio-3x4{ aspect-ratio: 3/4; }
.photo-frame.ratio-2x3{ aspect-ratio: 2/3; }
.photo-frame.ratio-3x2{ aspect-ratio: 3/2; }
.photo-frame.ratio-4x3{ aspect-ratio: 4/3; }
.photo-frame.ratio-16x9{ aspect-ratio: 16/9; }
.photo-frame.ratio-16x10{ aspect-ratio: 16/10; }
.photo-frame.ratio-21x9{ aspect-ratio: 21/9; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  background: var(--frost);
  padding: calc(var(--space-xl) - 1rem) 0 var(--space-lg);
  position:relative;
  overflow:hidden;
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  z-index:0;
}
.page-hero .hero-bg img{
  width:100%; height:100%;
  object-fit:cover;
}
.page-hero .hero-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(100deg, var(--frost) 0%, var(--frost) 28%, rgba(238,244,247,.75) 48%, rgba(238,244,247,.25) 68%, rgba(238,244,247,.08) 100%);
}
.page-hero .container{ position:relative; z-index:1; }
.page-hero .breadcrumb{
  font-family: var(--font-mono);
  font-size:.8rem;
  color: var(--steel);
  margin-bottom:1.1rem;
}
.page-hero .breadcrumb a{ color:var(--brand-red-dark); font-weight:600; }
.page-hero h1{ font-size: clamp(2rem, 4vw, 3.2rem); }
.page-hero .lede{ margin-top:1rem; }
@media (max-width: 760px){
  .page-hero .hero-bg::after{ background: linear-gradient(180deg, var(--frost) 15%, rgba(238,244,247,.85) 55%, rgba(238,244,247,.3) 100%); }
}

/* ---------- Installations table ---------- */
.filter-bar{
  display:flex;
  flex-direction:column;
  gap:1.1rem;
  margin-bottom: 1.8rem;
}
.filter-row{ display:flex; flex-wrap:wrap; gap:.9rem; align-items:center; }
.filter-row .filter-label{
  font-family:var(--font-mono);
  font-size:.76rem;
  text-transform:uppercase;
  letter-spacing:.05em;
  color:var(--steel);
  flex:none;
  width:88px;
}
.chip-group{ display:flex; flex-wrap:wrap; gap:.55rem; }
.chip{
  border:1px solid var(--line);
  background: var(--paper);
  padding: .5rem 1rem;
  border-radius:100px;
  font-size:.84rem;
  font-weight:600;
  color: var(--ink-700);
  cursor:pointer;
  transition: border-color .18s ease, background-color .18s ease, color .18s ease;
}
.chip:hover{ border-color: var(--flame); }
.chip.is-active{ background: var(--ink-900); border-color: var(--ink-900); color:var(--paper); }
.search-box{
  position:relative;
  min-width:240px;
}
.search-box input{
  width:100%;
  padding: .7rem 1rem .7rem 2.4rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  font-size:.9rem;
}
.search-box input:focus{ border-color: var(--flame); }
.search-box svg{
  position:absolute; left:.8rem; top:50%; transform:translateY(-50%);
  width:16px; height:16px; color:var(--steel);
}
.results-count{ font-size:.85rem; color:var(--steel); margin-bottom:1rem; font-family:var(--font-mono); }
@media (max-width:640px){
  .filter-row .filter-label{ width:100%; }
  .search-box{ width:100%; }
}

.table-wrap{
  border: 1px solid var(--line-frost);
  border-radius: var(--radius-lg);
  overflow:hidden;
  background:var(--paper);
}
table.installs{ width:100%; border-collapse:collapse; }
table.installs thead th{
  text-align:left;
  background: var(--ink-900);
  color: var(--frost);
  font-size:.78rem;
  letter-spacing:.05em;
  text-transform:uppercase;
  padding: 1rem 1.2rem;
  font-weight:600;
  cursor:pointer;
  user-select:none;
  white-space:nowrap;
}
table.installs thead th .arrow{ opacity:.5; margin-left:.3rem; font-size:.7rem; }
table.installs thead th[aria-sort="ascending"] .arrow,
table.installs thead th[aria-sort="descending"] .arrow{ opacity:1; color:var(--flame); }
table.installs tbody tr{ border-top: 1px solid var(--line-frost); transition: background .15s ease; }
table.installs tbody tr:hover{ background: var(--frost); }
table.installs td{ padding: 1rem 1.2rem; font-size:.92rem; }
table.installs td.cap{ font-family: var(--font-mono); font-weight:600; color:var(--brand-red-dark); white-space:nowrap; }
table.installs tbody tr.is-hidden{ display:none; }
.type-tag{
  display:inline-block;
  font-size:.72rem;
  font-weight:700;
  padding:.22rem .6rem;
  border-radius:100px;
  background: var(--frost-dark);
  color: var(--ink-700);
  margin: .12rem .2rem .12rem 0;
}

@media (max-width: 760px){
  table.installs thead{ display:none; }
  table.installs, table.installs tbody, table.installs tr, table.installs td{ display:block; width:100%; }
  table.installs tr{
    padding: 1rem 1.2rem;
    border-top: 1px solid var(--line-frost);
  }
  table.installs td{
    padding: .3rem 0;
    display:flex;
    justify-content:space-between;
    gap:1rem;
    font-size:.9rem;
  }
  table.installs td::before{
    content: attr(data-label);
    font-weight:700;
    color:var(--steel);
    font-size:.72rem;
    text-transform:uppercase;
    letter-spacing:.04em;
    flex:none;
  }
}

.empty-state{
  text-align:center;
  padding: 3rem 1.5rem;
  color:var(--steel);
}

/* ---------- Client wall ---------- */
.client-group{
  margin-bottom: 2rem;
  border: 1px solid var(--line-frost);
  border-radius: var(--radius-lg);
  overflow:hidden;
  background: var(--paper);
  transition: box-shadow .25s ease, transform .25s ease;
}
.client-group:hover{ box-shadow: var(--shadow-md); transform: translateY(-3px); }
.client-group .group-media{ aspect-ratio: 21/9; overflow:hidden; }
.client-group .group-media img{ width:100%; height:100%; object-fit:cover; display:block; }
.client-group .group-body{ padding: 1.6rem 1.8rem 1.8rem; }
.client-group h3{ margin-bottom:1.1rem; }
.client-tags{ display:flex; flex-wrap:wrap; gap:.7rem; }
.client-tag{
  border: 1px solid var(--line-frost);
  background: var(--paper);
  padding: .7rem 1.2rem;
  border-radius: var(--radius-md);
  font-weight:600;
  font-size:.9rem;
  color: var(--ink-700);
  transition: border-color .18s ease, background .18s ease;
}
.client-tag:hover{ border-color: var(--flame); background: var(--frost); }

/* ---------- Form ---------- */
.contact-layout{
  display:grid;
  grid-template-columns: .95fr 1.05fr;
  grid-auto-flow: dense;
  gap: 3rem;
  align-items:start;
}
.info-card{
  background: var(--ink-900);
  color:var(--paper);
  border-radius: var(--radius-lg);
  padding: 2.4rem;
}
.info-card h3{ color:var(--paper); }
.info-block{ margin-top:1.6rem; padding-top:1.6rem; border-top:1px solid rgba(238,244,247,.14); }
.info-block:first-of-type{ margin-top:2rem; border-top:none; padding-top:0; }
.info-block .label{ font-family:var(--font-mono); font-size:.76rem; text-transform:uppercase; letter-spacing:.06em; color:var(--sky); }
.info-block p, .info-block a{ margin-top:.5rem; line-height:1.6; }
.info-block a{ display:block; font-weight:600; }
.info-block a:hover{ color: var(--flame); }

.form-card{
  background: var(--paper);
  border: 1px solid var(--line-frost);
  border-radius: var(--radius-lg);
  padding: 2.4rem;
  box-shadow: var(--shadow-sm);
}
.field{ margin-bottom: 1.4rem; }
.field label{
  display:block;
  font-weight:700;
  font-size:.88rem;
  margin-bottom:.5rem;
  color: var(--ink-700);
}
.field input, .field select, .field textarea{
  width:100%;
  padding: .85rem 1rem;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--paper);
  color: var(--ink);
  transition: border-color .18s ease, box-shadow .18s ease;
}
.field textarea{ resize:vertical; min-height:110px; }
.field input:focus, .field select:focus, .field textarea:focus{
  border-color: var(--flame);
  box-shadow: 0 0 0 4px rgba(244,123,32,.14);
}
.field .hint{ font-size:.8rem; color:var(--steel); margin-top:.4rem; }
.field .error-msg{ font-size:.82rem; color:var(--error); margin-top:.4rem; display:none; font-weight:600; }
.field.has-error input, .field.has-error select, .field.has-error textarea{ border-color: var(--error); }
.field.has-error .error-msg{ display:block; }
.form-success{
  display:none;
  background: #E8F4EC;
  border: 1px solid var(--success);
  color: #1D5C3A;
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight:600;
  margin-bottom: 1.4rem;
  align-items:center;
  gap:.7rem;
}
.form-success.is-visible{ display:flex; }
.form-card form.is-hidden{ display:none; }

.map-embed{
  border-radius: var(--radius-lg);
  overflow:hidden;
  border: 1px solid var(--line-frost);
  aspect-ratio: 16/10;
  grid-column: 1 / -1;
}
.map-embed iframe{ width:100%; height:100%; border:0; display:block; }

@media (min-width:941px){
  .map-embed{ aspect-ratio:auto; height:380px; }
}

@media (max-width: 940px){
  .contact-layout{ grid-template-columns:1fr; }
}

/* ---------- Footer ---------- */
.site-footer{
  background: var(--ink-900);
  color: var(--frost);
  padding: var(--space-xl) 0 var(--space-md);
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid rgba(238,244,247,.12);
}
.footer-brand p{ color: var(--steel-light); margin-top:1rem; max-width:32ch; font-size:.92rem; }
.footer-col h4{
  font-family: var(--font-mono);
  font-size:.78rem;
  text-transform:uppercase;
  letter-spacing:.06em;
  color: var(--sky);
  margin-bottom:1.1rem;
}
.footer-col ul li{ margin-bottom:.7rem; }
.footer-col a{ color: var(--frost); font-size:.92rem; }
.footer-col a:hover{ color: var(--flame); }
.footer-brand-strip{
  display:flex; flex-wrap:wrap; gap: .5rem 1.4rem;
  padding: var(--space-md) 0;
  border-bottom: 1px solid rgba(238,244,247,.12);
}
.footer-brand-strip span{ font-size:.78rem; color:var(--steel-light); font-family:var(--font-mono); }
.footer-bottom{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem;
  padding-top: var(--space-md);
  font-size:.82rem;
  color: var(--steel-light);
}
.footer-bottom a{ color: var(--steel-light); }
.footer-bottom a:hover{ color:var(--flame); }
@media (max-width: 940px){
  .footer-grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px){
  .footer-grid{ grid-template-columns: 1fr; }
}

/* ---------- WhatsApp float + sticky mobile call bar ---------- */
.whatsapp-float{
  position:fixed;
  right: 1.4rem;
  bottom: 5.6rem;
  width:56px; height:56px;
  border-radius:50%;
  background:#25D366;
  display:grid; place-items:center;
  box-shadow: var(--shadow-md);
  z-index:600;
  transition: transform .2s ease;
}
.whatsapp-float:hover{ transform: scale(1.08); }
.whatsapp-float svg{ width:28px; height:28px; color:#fff; }

.call-float{
  position:fixed;
  right: 1.4rem;
  bottom: 9.8rem;
  width:56px; height:56px;
  border-radius:50%;
  background:var(--flame);
  display:grid; place-items:center;
  box-shadow: var(--shadow-md);
  z-index:600;
  transition: transform .2s ease;
}
.call-float:hover{ transform: scale(1.08); }
.call-float svg{ width:26px; height:26px; color:var(--ink-900); }

.mobile-call-bar{
  position:fixed;
  left:0; right:0; bottom:0;
  z-index:600;
  display:none;
  background: var(--ink-900);
  padding: .75rem 1rem;
  gap:.7rem;
}
.mobile-call-bar a{
  flex:1;
  text-align:center;
  padding:.8rem;
  border-radius: var(--radius-md);
  font-weight:700;
  font-size:.9rem;
}
.mobile-call-bar .call{ background: var(--flame); color:var(--ink-900); }
.mobile-call-bar .wa{ background:#25D366; color:#fff; }
@media (max-width: 720px){
  .mobile-call-bar{ display:flex; }
  body{ padding-bottom: 4.6rem; }
  .whatsapp-float{ bottom: 6.2rem; right:1rem; }
  .call-float{ display:none; }
}

/* ---------- misc ---------- */
.two-col{ display:grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items:center; }
@media (max-width: 860px){ .two-col{ grid-template-columns:1fr; } }
.list-check{ margin-top:1.4rem; }
.list-check li{
  display:flex; align-items:flex-start; gap:.7rem;
  margin-bottom:.85rem;
  color: var(--ink-700);
  font-size:.96rem;
}
.list-check li svg{ width:18px; height:18px; color: var(--flame); flex:none; margin-top:.15rem; }

.skip-link{
  position:absolute; left:-999px; top:0;
  background:var(--ink-900); color:var(--paper);
  padding:.8rem 1.2rem; z-index:1000; border-radius:0 0 8px 0;
}
.skip-link:focus{ left:0; }