/* ---------------------------------------------------
   IGNIS FIRE SYSTEM — stylesheet
   Tokens: near-black ground, ember/flame accent, steel secondary
--------------------------------------------------- */

:root{
  --black:        #050505;
  --black-soft:   #0c0c0e;
  --panel:        #131315;
  --panel-2:      #1a1a1d;
  --line:         #2a2a2e;
  --line-soft:    #202023;

  --ember:        #e2352b;
  --ember-dark:   #9c1f1f;
  --flame:        #ff7a1f;
  --flame-light:  #ffb02e;

  --steel:        #cdd2d6;
  --steel-dim:    #888e93;
  --steel-line:   #4b5257;

  --paper:        #eeeeea;
  --paper-dim:    #a9a9a4;

  --grad-flame: linear-gradient(135deg, var(--flame-light) 0%, var(--flame) 45%, var(--ember) 100%);
  --grad-steel: linear-gradient(135deg, #f1f2f3 0%, #c7cccf 55%, #8b9095 100%);

  --radius: 6px;
  --radius-sm: 4px;
  --container: 1180px;

  --ease: cubic-bezier(.22,.61,.36,1);
}

*, *::before, *::after{ box-sizing: border-box; }

html{
  scroll-behavior: smooth;
}

body{
  margin: 0;
  background: var(--black);
  color: var(--paper);
  font-family: 'Public Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1,h2,h3,h4{
  font-family: 'Oswald', 'Public Sans', sans-serif;
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
  color: #fff;
  letter-spacing: .2px;
}

p{ margin: 0; }
ul, ol{ margin: 0; padding: 0; list-style: none; }
a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display: block; }
button{ font: inherit; }

.section-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

.skip-link{
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--ember);
  color: #fff;
  padding: 10px 16px;
  z-index: 999;
}
.skip-link:focus{ left: 12px; top: 12px; }

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

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  font-family: 'Public Sans', sans-serif;
  font-weight: 600;
  font-size: 0.92rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s var(--ease), border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn .icon{ width: 16px; height: 16px; flex: none; }
.btn-primary{
  background: var(--grad-flame);
  color: #1a0a02;
}
.btn-primary:hover{ transform: translateY(-1px); filter: brightness(1.05); }
.btn-ghost{
  background: transparent;
  border-color: var(--steel-line);
  color: var(--steel);
}
.btn-ghost:hover{ border-color: var(--ember); color: #fff; }
.btn-lg{ padding: 14px 26px; font-size: 1rem; }

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5,5,5,.82);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--ease), background .25s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color: var(--line);
  background: rgba(5,5,5,.96);
}
.header-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 28px;
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
}
.brand-mark{ width: 40px; height: 40px; object-fit: contain; flex: none; }
.brand-word{
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 1.25rem;
  color: #fff;
  letter-spacing: .5px;
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}
.brand-word small{
  font-family: 'Public Sans', sans-serif;
  font-size: .58rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--ember);
}
.nav{
  display: flex;
  align-items: center;
  gap: 26px;
}
.nav-link{
  font-size: .93rem;
  font-weight: 500;
  color: var(--steel);
  position: relative;
  padding: 6px 0;
  transition: color .2s var(--ease);
}
.nav-link::after{
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--grad-flame);
  transition: right .25s var(--ease);
}
.nav-link:hover, .nav-link.is-active{ color: #fff; }
.nav-link:hover::after, .nav-link.is-active::after{ right: 0; }

.header-cta{ display: flex; align-items: center; gap: 10px; }
.nav-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav-toggle span{
  width: 18px; height: 2px;
  margin: 0 auto;
  background: var(--steel);
  transition: transform .25s var(--ease), opacity .2s var(--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); }

/* ---------- Hero ---------- */
.hero{
  position: relative;
  overflow: hidden;
  padding: 76px 0 0;
  border-bottom: 1px solid var(--line-soft);
  background-image:
    linear-gradient(100deg, rgba(5,5,5,.97) 0%, rgba(5,5,5,.93) 28%, rgba(5,5,5,.74) 55%, rgba(5,5,5,.5) 100%),
    url('img/21.jpg');
  background-size: cover;
  background-position: center 35%;
  background-repeat: no-repeat;
}
.hero-grid{
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(205,210,214,.05) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(205,210,214,.05) 0 1px, transparent 1px 88px);
  mask-image: radial-gradient(ellipse 80% 60% at 30% 30%, #000 0%, transparent 75%);
  pointer-events: none;
}
.hero-inner{
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 32px;
  align-items: center;
}
.hero-kicker{
  font-size: .95rem;
  color: var(--steel);
  margin-bottom: 18px;
  max-width: 34ch;
}
.hero-title{
  font-size: clamp(2.1rem, 4.1vw, 3.4rem);
  max-width: 15ch;
}
.hero-sub{
  margin-top: 20px;
  max-width: 48ch;
  color: var(--paper-dim);
  font-size: 1.03rem;
}
.hero-actions{
  margin-top: 32px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.hero-art{
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
}
.hero-glow{
  position: absolute;
  width: 60%;
  aspect-ratio: 1;
  background: radial-gradient(circle, rgba(255,122,31,.35) 0%, rgba(226,53,43,.12) 45%, transparent 72%);
  filter: blur(6px);
  animation: pulseGlow 5s ease-in-out infinite;
}
@keyframes pulseGlow{
  0%, 100%{ transform: scale(1); opacity: .9; }
  50%{ transform: scale(1.08); opacity: 1; }
}
.hero-logo{
  position: relative;
  width: min(74%, 380px);
}

.hero-copy > *{
  opacity: 0;
  transform: translateY(16px);
  animation: heroRise .7s var(--ease) forwards;
}
.hero-kicker{ animation-delay: .05s; }
.hero-title{ animation-delay: .15s; }
.hero-sub{ animation-delay: .28s; }
.hero-actions{ animation-delay: .4s; }
@keyframes heroRise{ to{ opacity: 1; transform: translateY(0); } }
@media (prefers-reduced-motion: reduce){
  .hero-copy > *{ opacity: 1; transform: none; animation: none; }
  .hero-glow{ animation: none; }
}

.hero-trio{
  position: relative;
  max-width: var(--container);
  margin: 56px auto 0;
  padding: 26px 28px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.hero-trio li{
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.hero-trio .icon{ width: 26px; height: 26px; color: var(--flame); flex: none; margin-top: 2px; }
.hero-trio strong{ display: block; color: #fff; font-size: .96rem; margin-bottom: 4px; }
.hero-trio span{ color: var(--paper-dim); font-size: .88rem; }

/* ---------- Section heads (shared) ---------- */
.section-head{
  max-width: 60ch;
  margin-bottom: 44px;
}
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); }
.section-head p{ margin-top: 12px; color: var(--paper-dim); font-size: 1.02rem; }

/* ---------- About ---------- */
.about{
  padding: 96px 0;
  background: var(--black-soft);
  border-bottom: 1px solid var(--line-soft);
}
.about-lead{ max-width: 72ch; }
.about-lead h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 20px; }
.about-lead p{ color: var(--paper-dim); margin-bottom: 14px; font-size: 1.03rem; }

.about-pillars{
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.pillar{
  background: var(--black-soft);
  padding: 28px;
}
.pillar h3{
  font-size: 1.05rem;
  color: var(--flame-light);
  margin-bottom: 10px;
}
.pillar p{ color: var(--paper-dim); font-size: .95rem; }

.values{ margin-top: 64px; }
.values-title{ font-size: 1.15rem; margin-bottom: 26px; }
.values-grid{
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.value{
  border-left: 2px solid var(--ember);
  padding: 4px 0 4px 16px;
}
.value-mark{
  display: block;
  font-family: 'Oswald', sans-serif;
  font-size: .8rem;
  color: var(--steel-dim);
  margin-bottom: 8px;
  letter-spacing: 1px;
}
.value h4{ font-size: .98rem; margin-bottom: 8px; }
.value p{ color: var(--paper-dim); font-size: .88rem; }

/* ---------- Services ---------- */
.services{ padding: 96px 0; }

.service{
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--steel-line);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  gap: 18px;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.service:hover{ border-left-color: var(--ember); transform: translateY(-2px); }

.service-icon{
  width: 42px; height: 42px;
  flex: none;
  color: var(--steel);
}
.service-icon svg{ width: 100%; height: 100%; }

.service-body h3{ font-size: 1.08rem; margin-bottom: 12px; }
.service-body ul{ display: grid; gap: 7px; }
.service-body li{
  color: var(--paper-dim);
  font-size: .89rem;
  padding-left: 14px;
  position: relative;
}
.service-body li::before{
  content: '';
  position: absolute;
  left: 0; top: 8px;
  width: 5px; height: 5px;
  background: var(--ember);
}

.service-featured{
  margin-bottom: 20px;
  border-left-color: var(--ember);
  background: linear-gradient(135deg, rgba(226,53,43,.08), rgba(255,122,31,.03));
}
.service-featured .service-icon{ width: 54px; height: 54px; color: var(--flame); }
.service-featured .service-body h3{ font-size: 1.3rem; margin: 4px 0 14px; }
.service-tag{
  display: inline-block;
  font-size: .74rem;
  font-weight: 600;
  color: var(--flame-light);
  background: rgba(255,122,31,.12);
  padding: 3px 10px;
  border-radius: 999px;
}
.service-featured .service-body ul{
  grid-template-columns: repeat(2, 1fr);
  column-gap: 24px;
}

.service-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

/* ---------- Process ---------- */
.process{
  padding: 96px 0;
  background: var(--black-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.process-list{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.process-list::before{
  content: '';
  position: absolute;
  top: 20px;
  left: 4%;
  right: 4%;
  height: 1px;
  background: linear-gradient(90deg, var(--ember), var(--flame-light), var(--steel-line));
  opacity: .5;
}
.process-list li{
  position: relative;
  padding: 0 20px 0 0;
}
.process-num{
  display: block;
  font-family: 'Oswald', sans-serif;
  font-size: 2.1rem;
  font-weight: 600;
  background: var(--grad-flame);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 18px;
}
.process-list h3{ font-size: 1.02rem; margin-bottom: 10px; }
.process-list p{ color: var(--paper-dim); font-size: .9rem; }

/* ---------- Contact ---------- */
.contact{ padding: 96px 0; }
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.contact-info h2{ font-size: clamp(1.7rem, 3vw, 2.2rem); margin-bottom: 14px; }
.contact-info > p{ color: var(--paper-dim); margin-bottom: 30px; max-width: 42ch; }

.contact-list{ display: grid; gap: 20px; margin-bottom: 32px; }
.contact-list li{ display: flex; gap: 14px; align-items: flex-start; }
.contact-list .icon{ width: 20px; height: 20px; color: var(--ember); flex: none; margin-top: 3px; }
.contact-label{ display: block; font-size: .78rem; color: var(--steel-dim); margin-bottom: 3px; }
.contact-list a{ font-size: .98rem; color: #fff; }
.contact-list a:hover{ color: var(--flame-light); }

.contact-form{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row{ display: flex; flex-direction: column; gap: 8px; }
.form-row label{ font-size: .85rem; color: var(--steel); }
.form-row input, .form-row select, .form-row textarea{
  background: var(--black-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: #fff;
  padding: 11px 13px;
  font-family: inherit;
  font-size: .95rem;
  resize: vertical;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{
  border-color: var(--ember);
  outline: none;
}
.form-submit{ justify-content: center; margin-top: 6px; }
.form-note{ font-size: .78rem; color: var(--steel-dim); text-align: center; }

/* ---------- Portfolio ---------- */
.portfolio{
  padding: 96px 0;
  background: var(--black-soft);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}
.portfolio-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: 14px;
}
.portfolio-item{
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--panel);
  cursor: zoom-in;
  transition: border-color .2s var(--ease);
}
.portfolio-item img{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s var(--ease), filter .35s var(--ease);
  filter: saturate(.92);
}
.portfolio-item:hover{ border-color: var(--ember); }
.portfolio-item:hover img{ transform: scale(1.06); filter: saturate(1.05); }

.portfolio-item:nth-child(5n+1){ grid-column: span 2; grid-row: span 2; }

/* ---------- Lightbox ---------- */
.lightbox{
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(3,3,4,.92);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}
.lightbox[hidden]{ display: none; }
.lightbox-img{
  max-width: min(1100px, 90vw);
  max-height: 86vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.lightbox-close, .lightbox-nav{
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.06);
  border: 1px solid var(--line);
  color: #fff;
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
.lightbox-close svg, .lightbox-nav svg{ width: 20px; height: 20px; }
.lightbox-close:hover, .lightbox-nav:hover{ background: rgba(255,255,255,.14); border-color: var(--ember); }
.lightbox-close{ top: 22px; right: 22px; }

.lightbox-prev{ left: 22px; top: 50%; transform: translateY(-50%); }
.lightbox-next{ right: 22px; top: 50%; transform: translateY(-50%); }

/* ---------- Floating WhatsApp button ---------- */
.whatsapp-fab{
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 250;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25D366;
  box-shadow: 0 6px 20px rgba(37,211,102,.45), 0 2px 6px rgba(0,0,0,.3);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}
.whatsapp-fab svg{ width: 34px; height: 34px; display: block; }
.whatsapp-fab:hover{ transform: scale(1.08); box-shadow: 0 8px 26px rgba(37,211,102,.6), 0 2px 6px rgba(0,0,0,.35); }
.whatsapp-fab::before{
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: #25D366;
  opacity: .55;
  animation: waPulse 2.4s ease-out infinite;
  z-index: -1;
}
@keyframes waPulse{
  0%{ transform: scale(1); opacity: .5; }
  100%{ transform: scale(1.9); opacity: 0; }
}
@media (prefers-reduced-motion: reduce){
  .whatsapp-fab::before{ animation: none; display: none; }
}

/* ---------- Footer ---------- */
.site-footer{ background: var(--black-soft); border-top: 1px solid var(--line-soft); }
.footer-inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 28px 32px;
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
}
.footer-brand{ display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.footer-brand .brand-word{ font-size: 1.1rem; }
.footer-brand p{
  flex-basis: 100%;
  color: var(--paper-dim);
  font-size: .88rem;
  margin-top: 10px;
  max-width: 32ch;
}
.footer-nav{ display: flex; flex-direction: column; gap: 12px; }
.footer-nav a{ color: var(--steel); font-size: .92rem; }
.footer-nav a:hover{ color: #fff; }
.footer-contact{ display: flex; flex-direction: column; gap: 12px; }
.footer-contact a{ color: var(--steel); font-size: .92rem; }
.footer-contact a:hover{ color: #fff; }
.footer-bottom{
  border-top: 1px solid var(--line-soft);
  padding: 20px 28px;
  text-align: center;
}
.footer-bottom p{ color: var(--steel-dim); font-size: .82rem; }

/* ---------------------------------------------------
   Responsive
--------------------------------------------------- */
@media (max-width: 980px){
  .hero{
    background-image:
      linear-gradient(180deg, rgba(5,5,5,.78) 0%, rgba(5,5,5,.94) 55%, rgba(5,5,5,.97) 100%),
      url('img/21.jpg');
    background-position: center 20%;
  }
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-art{ order: -1; min-height: 260px; }
  .hero-logo{ width: min(60%, 260px); }
  .hero-title{ max-width: none; }
  .about-pillars{ grid-template-columns: 1fr; }
  .values-grid{ grid-template-columns: repeat(2, 1fr); }
  .service-grid{ grid-template-columns: repeat(2, 1fr); }
  .process-list{ grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .process-list::before{ display: none; }
  .contact-grid{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
  .footer-brand{ grid-column: 1 / -1; }
  .portfolio-grid{ grid-template-columns: repeat(3, 1fr); grid-auto-rows: 180px; }
}

@media (max-width: 760px){
  .nav{
    position: fixed;
    top: 70px;
    left: 0; right: 0;
    background: var(--black);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 28px 26px;
    gap: 18px;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .2s var(--ease), transform .2s var(--ease), visibility .2s;
  }
  .nav.is-open{
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
  }
  .header-inner{ gap: 12px; padding: 12px 16px; }
  .header-cta .btn-ghost{ display: none; }
  .header-cta .btn-primary{ padding: 9px 14px; font-size: .82rem; }
  .brand-mark{ width: 34px; height: 34px; }
  .brand-word{ font-size: 1.05rem; }
  .brand-word small{ font-size: .52rem; }
  .nav-toggle{ display: flex; flex: none; }
  .hero-trio{ grid-template-columns: 1fr; gap: 22px; }
  .values-grid{ grid-template-columns: 1fr 1fr; }
  .service-grid{ grid-template-columns: 1fr; }
  .service-featured{ flex-direction: column; }
  .service-featured .service-body ul{ grid-template-columns: 1fr; }
  .process-list{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr; }

  .portfolio-grid{ grid-template-columns: repeat(2, 1fr); grid-auto-rows: 150px; gap: 10px; }
  .portfolio-item:nth-child(5n+1){ grid-column: span 2; grid-row: span 1; }

  .lightbox{ padding: 16px; }
  .lightbox-close{ top: 10px; right: 10px; width: 38px; height: 38px; }
  .lightbox-prev{ left: 6px; width: 38px; height: 38px; }
  .lightbox-next{ right: 6px; width: 38px; height: 38px; }

  .whatsapp-fab{ width: 52px; height: 52px; right: 14px; bottom: 14px; }
  .whatsapp-fab svg{ width: 30px; height: 30px; }
}

@media (max-width: 420px){
  .values-grid{ grid-template-columns: 1fr; }
}