/* ======================================================
   DRYP STUDIO — style.css (Etapa 3: Final Premium)
   - Tipografia, layout responsivo, animações sutis
   - Aplique junto ao HTML fornecido (index.html)
   ====================================================== */

/* --------- Variables / Theme --------- */
:root{
  --bg: #000000;
  --card: #0f1113;
  --muted: #bdbdbd;
  --text: #ffffff;
  --accent: #f9b233; /* destaque */
  --accent-2: #ffca60;
  --glass: rgba(255,255,255,0.04);
  --radius: 12px;
  --max-width: 1200px;
  --container-pad: 24px;
  --transition-fast: 180ms;
  --transition: 280ms;
}

/* --------- Reset / Base --------- */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.5;
  -webkit-text-size-adjust:100%;
  text-rendering:optimizeLegibility;
}

/* Accessibility helpers */
.sr-only{
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

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

/* common section */
.section{
  padding:80px 0;
}

/* --------- Header / Nav --------- */
.header{
  position:fixed;
  inset:0 0 auto 0;
  height:70px;
  display:flex;
  align-items:center;
  z-index:999;
  background: linear-gradient(180deg, rgba(0,0,0,0.55), rgba(0,0,0,0.25));
  backdrop-filter: blur(6px);
}

.header-container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  max-width:var(--max-width);
  margin:0 auto;
  padding:0 var(--container-pad);
}

/* Logo */
.logo{
  font-weight:600;
  letter-spacing:2px;
  font-size:1.15rem;
}

/* Desktop nav */
.nav{
  display:flex;
  gap:22px;
  align-items:center;
}
.nav a{
  color:var(--muted);
  text-decoration:none;
  font-weight:500;
  transition: color var(--transition);
  padding:6px 4px;
}
.nav a:hover,
.nav a:focus{
  color:var(--text);
  outline: none;
}
.nav a:focus{
  box-shadow: 0 0 0 4px rgba(249,178,51,0.12);
  border-radius:6px;
}

/* Mobile menu button */
.mobile-menu-btn{
  display:none;
  background:transparent;
  border:1px solid transparent;
  color:var(--text);
  font-size:1.25rem;
  padding:8px 10px;
  border-radius:8px;
  cursor:pointer;
}

/* --------- Mobile nav (drawer) --------- */
.mobile-nav{
  display:none;
  position:fixed;
  top:70px;
  right:20px;
  background: rgba(10,10,10,0.96);
  border-radius:12px;
  padding:14px 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.6);
  flex-direction:column;
  gap:12px;
}
.mobile-nav a{
  color:var(--text);
  text-decoration:none;
  font-weight:600;
}

.hamburger {
   width: 30px;
   height: 30px;
   border: none;
}

/* --------- HERO --------- */
.hero{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  overflow:hidden;
  padding-top:70px; /* header space */
  background-color:#000;
  background-image: url('');
  background-position:center;
  background-size:cover;
  background-repeat:no-repeat;
}

/* hero overlay */
.hero::before{
  content:"";
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(0,0,0,0.55) 10%, rgba(0,0,0,0.65) 50%, rgba(0,0,0,0.9) 100%);
  z-index:0;
}
.hero-content{
  position:relative;
  z-index:2;
  text-align:center;
  padding:36px;
  max-width:900px;
}
.hero h1{
  font-size: clamp(32px, 5vw, 56px);
  margin:0 0 12px 0;
  line-height:1.02;
  letter-spacing:0.2px;
  font-weight:700;
  text-transform: none;
}
.hero p{
  margin:0 0 20px 0;
  color:var(--muted);
  font-size:1.05rem;
}
.btn{
  display:inline-block;
  background: linear-gradient(90deg,var(--accent),var(--accent-2));
  color:#000;
  padding:12px 22px;
  border-radius:999px;
  font-weight:700;
  text-decoration:none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  box-shadow: 0 8px 20px rgba(249,178,51,0.12);
}
.btn:hover,
.btn:focus{ transform: translateY(-3px); }

/* --------- ABOUT --------- */
.about{
  text-align:center;
}
.about h2{
  font-size: clamp(22px, 3vw, 34px);
  margin-bottom:18px;
}
.about p{
  max-width:820px;
  margin:0 auto;
  color:var(--muted);
}

/* --------- PORTFOLIO GRID --------- */
.portfolio{
  text-align:center;
}
.portfolio h2{
  font-size: clamp(22px, 3vw, 34px);
  margin-bottom:26px;
}
.portfolio-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:18px;
  align-items:stretch;
}
.portfolio-item{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius);
  background:var(--card);
  min-height:220px;
}
.portfolio-item img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
  transition: transform var(--transition), filter var(--transition);
  transform-origin:center;
}
.portfolio-item:hover img{
  transform: scale(1.04);
  filter:brightness(0.95);
}

/* Lazy-loading helper: add class .lazy on markup if using JS lazy loader */
img.lazy{ opacity:0; transform: scale(.98); transition: opacity .4s ease, transform .5s; }
img.lazy.loaded{ opacity:1; transform: none; }

/* --------- CONTACT / FORM --------- */
.contact{ text-align:center; }
.contact h2{ font-size: clamp(22px, 3vw, 34px); margin-bottom:26px; }

.contact-form{
  max-width:640px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:22px;
  border-radius:14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.03);
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
}

/* Inputs */
.contact-form .form-group input,
.contact-form .form-group textarea,
.contact-form input,
.contact-form textarea {
  width:100%;
  padding:14px 16px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.06);
  background:#070809;
  color:var(--text);
  font-size:1rem;
  resize:vertical;
  transition: box-shadow var(--transition), border-color var(--transition);
}
.contact-form input::placeholder,
.contact-form textarea::placeholder { color: #8f8f8f; }

.contact-form input:focus,
.contact-form textarea:focus{
  outline:none;
  border-color: rgba(249,178,51,0.9);
  box-shadow: 0 6px 18px rgba(249,178,51,0.08);
}

/* Button */
.send-btn{
  align-self:flex-end;
  padding:12px 20px;
  border-radius:10px;
  border:none;
  background: linear-gradient(90deg,var(--accent),var(--accent-2));
  color:#000;
  font-weight:700;
  cursor:pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.send-btn:hover{ transform: translateY(-3px); box-shadow: 0 12px 30px rgba(249,178,51,0.12); }

/* small feedback text (optional) */
.form-feedback{
  font-size:0.95rem;
  color:var(--muted);
}

/* --------- Footer --------- */
.footer{
  padding:30px 0;
  text-align:center;
  color:#9b9b9b;
  border-top:1px solid rgba(255,255,255,0.03);
}

/* --------- Utilities --------- */
.row{ display:flex; gap:18px; flex-wrap:wrap; }
.center{ text-align:center; }

/* --------- Animations & subtle reveals --------- */
.fade-up{
  opacity:0;
  transform: translateY(10px);
  transition: opacity 520ms ease, transform 520ms ease;
}
.fade-up.in-view{ opacity:1; transform:none; }

/* IntersectionObserver can add .in-view when element visible */

/* --------- RESPONSIVE --------- */
@media (max-width:1100px){
  .portfolio-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width:760px){
  .header{ height:64px; }
  .nav{ display:none; }
  .mobile-menu-btn{ display:inline-flex; }
  .container{ padding-left:16px; padding-right:16px; }

  .hero{ padding-top:64px; background-position:center 30%; }
  .hero h1{ font-size: clamp(22px, 7vw, 32px); }

  .portfolio-grid{ grid-template-columns: 1fr; gap:14px; }
  .portfolio-item img{ height:260px; object-position:center; }

  .contact-form{ padding:18px; }
  .send-btn{ width:100%; align-self:stretch; }
}
@media (max-width:420px){
  .hero h1{ font-size:22px; }
  .hero p{ font-size:0.95rem; }
}

/* --------- Focus-visible for keyboard users --------- */
:focus{ outline:none; }
:focus-visible{ outline: 3px solid rgba(249,178,51,0.16); outline-offset:4px; border-radius:6px; }

/* --------- Print (minimal) --------- */
@media print{
  .hero, .nav, .mobile-menu-btn, .footer{ display:none; }
  body{ background:#fff; color:#000; }
}

/* ===== Portfólio: filtros ===== */
.portfolio-filters {
  display:flex;
  gap:10px;
  justify-content:center;
  margin-bottom:24px;
  flex-wrap:wrap;
}
.filter-btn{
  background:transparent;
  color:var(--muted);
  border:1px solid rgba(255,255,255,0.04);
  padding:8px 14px;
  border-radius:999px;
  cursor:pointer;
  font-weight:600;
  transition: all 180ms ease;
}
.filter-btn:hover{ transform: translateY(-2px); color:var(--text); }
.filter-btn.active{
  background: linear-gradient(90deg,var(--accent),var(--accent-2));
  color:#000;
  border: none;
}

/* Grid item overlay */
.portfolio-item{
  cursor:pointer;
  position:relative;
  min-height:200px;
  display:flex;
}
.portfolio-item img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:12px;
  display:block;
}

/* ===== Lightbox ===== */
.lightbox{
  position:fixed;
  inset:0;
  display:none;
  align-items:center;
  justify-content:center;
  background: rgba(0,0,0,0.85);
  z-index:2000;
  padding:20px;
}
.lightbox[aria-hidden="false"]{ display:flex; }

.lightbox-content{
  max-width:1100px;
  width:100%;
  text-align:center;
  position:relative;
}
.lightbox-content img{
  max-width:100%;
  max-height:80vh;
  border-radius:8px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.lightbox-caption{
  margin-top:12px;
  color:var(--muted);
  font-size:0.95rem;
}

/* controls */
.lightbox-close,
.lightbox-prev,
.lightbox-next{
  position:fixed;
  background:transparent;
  border:none;
  color:#fff;
  font-size:28px;
  cursor:pointer;
  z-index:2100;
  padding:8px 12px;
}
.lightbox-close{ top:20px; right:24px; font-size:20px; background: rgba(255,255,255,0.04); border-radius:8px; }
.lightbox-prev{ left:18px; top:50%; transform:translateY(-50%); }
.lightbox-next{ right:18px; top:50%; transform:translateY(-50%); }

/* hide controls on small view to avoid overlap */
@media (max-width:600px){
  .lightbox-prev, .lightbox-next { display:none; }
  .lightbox-content img{ max-height:60vh; }
}

/* fade-in animation */
.lightbox-content img, .lightbox-caption { transition: opacity 260ms ease, transform 260ms ease; }

/* small gap on mobile */
@media (max-width:420px){
  .portfolio-item img{ border-radius:10px; }
  .filter-btn{ padding:7px 12px; font-size:0.95rem; }
}