:root{
  --bg: #f0f0f0;
  --fg: #232323;

  --bg-invert: #232323;
  --fg-invert: #f0f0f0;

  --line: rgba(35,35,35,0.25);
  --line-invert: rgba(240,240,240,0.25);

  --max: 1120px;
  --pad: 20px;
}

*{ box-sizing:border-box; }
html, body{ height:100%; }
body{
  margin:0;
  font-family: "Manrope", ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--bg);
  color: var(--fg);
  letter-spacing: 0.1px;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }

.container{
  width:100%;
  max-width: var(--max);
  margin:0 auto;
  padding: 0 var(--pad);
}

/* HEADER */
.site-header{
  position: sticky;
  top:0;
  z-index: 20;
  background: rgba(240,240,240,0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner{
  height: 76px;
  display:flex;
  align-items:center;
  justify-content:center;
}

/* Header brand line */
.brand{
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;

  flex-wrap: wrap;
  text-align: center;
}

.brand-logo{
  height: 22px; /* pode ajustar */
  width: auto;
  display: block;
}

.brand-name{
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.brand-sep{
  font-size: 12px;
  opacity: 0.6;
  letter-spacing: 0;
}

.brand-tagline{
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.6px;
  opacity: 0.8;
}

/* Mobile: quebra mais bonita e respiro */
@media (max-width: 520px){
  .brand{
    gap: 8px;
  }
  .brand-tagline{
    width: 100%;
    margin-top: 4px;
    letter-spacing: 0.4px;
  }
  .brand-sep{
    display: none; /* no mobile a tagline desce, então o — não faz falta */
  }
}

/* HERO */
.hero{
  position: relative;
  min-height: 66vh;
  display:flex;
  align-items:center;
  overflow:hidden;
  background: var(--bg-invert);
  color: var(--fg-invert);
  border-bottom: 1px solid var(--line-invert);
}

.hero-inner{
  position: relative;
  z-index: 2;
  padding: 72px var(--pad);
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
}

.hero-title{
  margin:0;
  max-width: 1000px;
  font-size: clamp(28px, 4vw, 56px);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.5px;

  animation: heroTitleIn 800ms ease-out both;
}

/* fundo com imagens */
.hero-bg{
  position: absolute;
  inset: 0;

  background-position: center;
  background-size: cover;

  /* COLORIDO cinematográfico (controlado) */
  filter: saturate(0.9) contrast(1.05);

  opacity: 0.65; /* pode ajustar entre 0.6–0.75 */
  transform: scale(1.06);

  transition: opacity 1200ms ease;
  will-change: opacity, transform;
  animation: heroDrift 10s ease-in-out infinite alternate;
}

@keyframes heroDrift{
  from { transform: scale(1.06) translateY(0px); }
  to   { transform: scale(1.10) translateY(-8px); }
}

.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background: rgba(35,35,35,0.62);
  z-index:1;
}

@keyframes heroTitleIn{
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* PORTFOLIO */
.portfolio{
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
}

.portfolio-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.portfolio-card{
  display:flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: transparent;
  min-height: 360px;
  overflow:hidden;
  transition: transform 160ms ease, border-color 160ms ease;
}

.portfolio-card{
  position: relative;
  display:flex;
  flex-direction: column;
  border: 1px solid var(--line);
  background: transparent;
  min-height: 360px;
  overflow:hidden;
  transition: transform 250ms ease, border-color 250ms ease;
}

.portfolio-image{
  flex:1;
  background-size: cover;
  background-position:center;
  filter: grayscale(100%);
  transform: scale(1.02);
  transition: transform 900ms cubic-bezier(.19,1,.22,1),
              filter 700ms ease,
              opacity 700ms ease;
  opacity: 0.92;
  will-change: transform, filter, opacity;
}

.portfolio-label{
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;

  padding: 12px;

  display: flex;
  align-items: center;
  justify-content: center;

  border: 1px solid rgba(240,240,240,0.18);
  background: rgba(35,35,35,0.28);
  backdrop-filter: blur(4px);

  color: var(--fg-invert);
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;

  opacity: 0;
  transform: translateY(8px);
  transition: opacity 500ms ease, transform 700ms cubic-bezier(.19,1,.22,1);
  pointer-events: none;
}

.portfolio-card:hover{
  transform: translateY(-2px);
  border-color: rgba(35,35,35,0.45);
}

.portfolio-card:hover .portfolio-image{
  filter: grayscale(0%);
  transform: scale(1.07);
  opacity: 1;
}

.portfolio-card:hover .portfolio-label{
  opacity: 1;
  transform: translateY(0);
}

/* ABOUT + CONTACT */
.about-contact{
  padding: 72px 0;
  background: var(--bg);
}

.about-contact-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: stretch;
}

.about-panel{
  border: 1px solid var(--line);
  padding: 24px;
  background: transparent;
}

.section-title{
  margin:0 0 18px 0;
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.9px;
}

.about-text p{
  margin: 0 0 18px 0;
  line-height: 1.72;
  font-size: 15px;
}

.about-text p:last-child{ margin-bottom:0; }

.contact-panel{
  border: 1px solid var(--line-invert);
  padding: 24px;
  background: var(--bg-invert);
  color: var(--fg-invert);
}

.section-title--invert{
  color: var(--fg-invert);
}

.contact-form{
  display:flex;
  flex-direction: column;
  gap: 12px;
}

.field{
  display:flex;
  flex-direction: column;
  gap: 8px;
}

.field-label{
  font-size: 12px;
  letter-spacing: 0.7px;
  text-transform: uppercase;
  color: rgba(240,240,240,0.85);
}

.field-input{
  width:100%;
  padding: 12px 12px;
  border: 1px solid var(--line-invert);
  background: transparent;
  color: var(--fg-invert);
  outline:none;
  border-radius: 0;
}

.field-input:focus{
  border-color: rgba(240,240,240,0.55);
}

.field-textarea{
  resize: vertical;
  min-height: 120px;
}

.btn{
  margin-top: 6px;
  padding: 12px 14px;
  border: 1px solid rgba(240,240,240,0.65);
  background: transparent;
  color: var(--fg-invert);
  text-transform: uppercase;
  letter-spacing: 0.9px;
  font-size: 12px;
  cursor:pointer;
  transition: transform 160ms ease, opacity 160ms ease;
}

.btn:hover{ transform: translateY(-1px); }
.btn:active{ transform: translateY(0px); opacity: 0.9; }

.form-hint{
  margin: 8px 0 0 0;
  font-size: 13px;
  color: rgba(240,240,240,0.8);
}

.link-invert{
  color: var(--fg-invert);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* FOOTER */
.site-footer{
  border-top: 1px solid var(--line);
  padding: 26px 0;
  background: var(--bg);
  color: var(--fg);
}

.footer-inner{
  display:flex;
  align-items:flex-start;
  justify-content: space-between;
  gap: 16px;
}

.footer-line{
  margin: 0 0 8px 0;
  font-size: 13px;
  line-height: 1.4;
}

.footer-line:last-child{ margin-bottom:0; }

.link{
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-right{
  display:flex;
  gap: 10px;
  align-items:center;
}

.social{
  width: 40px;
  height: 40px;
  display:grid;
  place-items:center;
  border: 1px solid var(--line);
  transition: transform 160ms ease, border-color 160ms ease;
}

.social:hover{
  transform: translateY(-1px);
  border-color: rgba(35,35,35,0.45);
}

.social svg{
  fill: var(--fg);
}

/* RESPONSIVO */
@media (max-width: 980px){
  .portfolio-grid{ grid-template-columns: repeat(2, 1fr); }
  .portfolio-card{ min-height: 320px; }
}

@media (max-width: 780px){
  .about-contact-grid{ grid-template-columns: 1fr; }
  .hero-inner{ padding: 64px var(--pad); }
  .footer-inner{ flex-direction: column; }
}

@media (hover: none){
  .portfolio-label{
    opacity: 1;
    transform: translateY(0);
  }
  .portfolio-image{
    opacity: 1;
    filter: grayscale(100%);
    transform: scale(1.02);
  }
}

@media (prefers-reduced-motion: reduce){
  .portfolio-image,
  .portfolio-label{
    transition: none !important;
  }
}

/* ===== WhatsApp Floating CTA ===== */

.whatsapp-float{
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 999;

  width: 54px;
  height: 54px;
  border-radius: 999px;

  display: grid;
  place-items: center;

  border: 1px solid rgba(35,35,35,0.25);
  background: rgba(240,240,240,0.9);
  backdrop-filter: blur(10px);

  color: #232323;

  box-shadow: 0 8px 24px rgba(0,0,0,0.08);

  transform: translate3d(0,0,0);
  transition: 
    transform 240ms cubic-bezier(.19,1,.22,1),
    border-color 240ms ease,
    background 240ms ease,
    box-shadow 240ms ease;
}

.whatsapp-float:hover{
  transform: translateY(-4px);
  border-color: rgba(35,35,35,0.45);
  background: rgba(240,240,240,0.96);
  box-shadow: 0 14px 32px rgba(0,0,0,0.12);
}

.whatsapp-float:active{
  transform: translateY(-1px) scale(0.96);
}

.whatsapp-icon{
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
}

.whatsapp-icon svg{
  width: 22px;
  height: 22px;
  display: block;
}

/* Mobile */
@media (max-width: 520px){
  .whatsapp-float{
    width: 48px;
    height: 48px;
    right: 16px;
    bottom: 16px;
  }
}

/* Respeita acessibilidade */
@media (prefers-reduced-motion: reduce){
  .whatsapp-float{
    transition: none !important;
  }
}

/* FIX mobile: garante que o WhatsApp CTA permaneça flutuante */
a.whatsapp-float{
  position: fixed !important;
  right: 16px !important;
  bottom: 16px !important;
  z-index: 9999 !important;

  width: 48px !important;
  height: 48px !important;

  display: grid !important;
  place-items: center !important;

  border-radius: 999px !important;
}

a.whatsapp-float svg{
  width: 22px !important;
  height: 22px !important;
  max-width: 22px !important;
  max-height: 22px !important;
  display: block !important;
}