/* =========================================================================
   Eduardo Kozlowski — portfólio
   Tema claro/escuro · animações vanilla · sem dependências
   ========================================================================= */

:root {
  --bg: #ffffff;
  --bg-alt: #f5f5f3;
  --surface: #ffffff;
  --text: #111114;
  --muted: #6c6c75;
  --line: #e8e7e3;
  --brand: #11a7af;
  --brand-2: #1aafb7;
  --brand-ink: #0c7e84;
  --grid: rgba(17, 167, 175, 0.07);
  --aura-1: rgba(26, 175, 183, 0.22);
  --aura-2: rgba(26, 175, 183, 0.12);
  --shadow: 0 18px 50px rgba(20, 20, 25, 0.10);
  --radius: 16px;
  --maxw: 1040px;
  --space: clamp(72px, 11vw, 140px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html[data-theme="dark"] {
  --bg: #0a0c0d;
  --bg-alt: #101315;
  --surface: #14181a;
  --text: #f2f4f4;
  --muted: #9aa1a4;
  --line: #242a2d;
  --brand: #2fd4dd;
  --brand-2: #2fd4dd;
  --brand-ink: #7cebf1;
  --grid: rgba(47, 212, 221, 0.07);
  --aura-1: rgba(47, 212, 221, 0.20);
  --aura-2: rgba(47, 212, 221, 0.08);
  --shadow: 0 22px 60px rgba(0, 0, 0, 0.55);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background 0.4s var(--ease), color 0.4s var(--ease);
}

a { color: inherit; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* Grão sutil para textura high-end */
.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
html[data-theme="dark"] .grain { opacity: 0.06; }

/* Barra de progresso de scroll */
.progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0;
  z-index: 60;
  background: linear-gradient(90deg, var(--brand), var(--brand-ink));
  transition: width 0.1s linear;
}

/* =========================== NAV =========================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
  gap: 20px;
}
.nav__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.nav__mark { width: 22px; height: 22px; object-fit: contain; }
html[data-theme="dark"] .nav__mark { filter: invert(1) brightness(1.6); }
.nav__links { display: flex; gap: 26px; }
.nav__links a {
  position: relative;
  text-decoration: none;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 100%;
  height: 1.5px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav__links a:hover { color: var(--text); }
.nav__links a:hover::after { transform: scaleX(1); }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.2s, border-color 0.2s, background 0.3s;
}
.theme-toggle:hover { transform: rotate(15deg); border-color: var(--brand); }
.theme-toggle .ico { position: absolute; transition: opacity 0.3s, transform 0.4s var(--ease); }
html[data-theme="light"] .ico--moon { opacity: 0; transform: scale(0.4) rotate(-90deg); }
html[data-theme="light"] .ico--sun { opacity: 1; }
html[data-theme="dark"] .ico--sun { opacity: 0; transform: scale(0.4) rotate(90deg); }
html[data-theme="dark"] .ico--moon { opacity: 1; }

/* =========================== HERO =========================== */
.hero {
  position: relative;
  padding: clamp(90px, 17vw, 190px) 0 var(--space);
  overflow: hidden;
}
.hero__inner { position: relative; z-index: 2; }
.hero__aura { position: absolute; inset: -20% -10% auto -10%; z-index: 0; height: 130%; }
.hero__aura span {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  will-change: transform;
}
.hero__aura span:nth-child(1) {
  width: 520px; height: 520px; left: -60px; top: -40px;
  background: var(--aura-1);
  animation: drift1 16s var(--ease) infinite alternate;
}
.hero__aura span:nth-child(2) {
  width: 420px; height: 420px; right: -40px; top: 40px;
  background: var(--aura-2);
  animation: drift2 20s var(--ease) infinite alternate;
}
.hero__aura span:nth-child(3) {
  width: 360px; height: 360px; left: 35%; top: 120px;
  background: var(--aura-2);
  animation: drift1 24s var(--ease) infinite alternate-reverse;
}
@keyframes drift1 { to { transform: translate3d(60px, 40px, 0) scale(1.15); } }
@keyframes drift2 { to { transform: translate3d(-50px, 30px, 0) scale(1.1); } }

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-ink);
  margin: 0 0 22px;
}
.hero__title {
  font-size: clamp(52px, 11vw, 116px);
  line-height: 0.94;
  letter-spacing: -0.04em;
  font-weight: 800;
  margin: 0 0 28px;
}
.hero__dot { color: var(--brand); }
.hero__lead {
  font-size: clamp(15px, 1.9vw, 19px);
  color: var(--muted);
  max-width: 580px;
  margin: 0 0 36px;
}
.hero__lead em { color: var(--text); font-style: normal; font-weight: 500; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 12px; }

.hero__social { display: flex; align-items: center; gap: 10px; margin-top: 28px; }
.social {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  transition: transform 0.18s var(--ease), border-color 0.2s, color 0.2s, box-shadow 0.2s;
}
.social--imdb { font-weight: 700; font-size: 11px; letter-spacing: -0.01em; }
.social:hover { transform: translateY(-2px); border-color: var(--brand); color: var(--brand); box-shadow: var(--shadow); }

/* =========================== BOTÕES =========================== */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  overflow: hidden;
  transition: transform 0.18s var(--ease), border-color 0.2s, box-shadow 0.2s;
}
.btn:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--text) 22%, transparent); box-shadow: var(--shadow); }
.btn--primary {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}
html[data-theme="dark"] .btn--primary { color: #04201f; }
.btn--primary:hover { background: var(--brand-2); border-color: var(--brand-2); }

/* =========================== MARQUEE =========================== */
.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-alt);
  overflow: hidden;
  padding: 18px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  align-items: center;
  gap: 0;
  width: max-content;
  animation: scrollx 38s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__brand {
  display: inline-block;
  width: 84px;
  height: 32px;
  margin: 0 24px;
  background: var(--muted);
  -webkit-mask: var(--logo) no-repeat center / contain;
  mask: var(--logo) no-repeat center / contain;
  opacity: 0.7;
  transition: opacity 0.25s, background 0.25s;
}
.marquee__brand--arri { width: 114px; height: 37px; opacity: 0.85; }
.marquee__brand:hover { opacity: 1; background: var(--brand); }
@keyframes scrollx { to { transform: translateX(-50%); } }

/* =========================== SECTIONS =========================== */
.section { position: relative; z-index: 2; padding: var(--space) 0; }
.section--alt { background: var(--bg-alt); }
/* linha ciano dividindo seções (separador visível nos dois temas) */
.section + .section { border-top: 1px solid color-mix(in srgb, var(--brand) 38%, transparent); }
.section__grid { display: grid; grid-template-columns: 240px 1fr; gap: 56px; }
.section__num {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--brand-ink);
  margin-bottom: 12px;
}
.section__head h2,
.section__title h2 {
  font-size: clamp(28px, 4.5vw, 40px);
  letter-spacing: -0.03em;
  font-weight: 700;
  margin: 0;
}
.section__title { margin-bottom: 48px; max-width: 640px; }
.section__title p { color: var(--muted); margin: 12px 0 0; }
.section__title a { color: var(--brand-ink); text-decoration: none; border-bottom: 1px solid color-mix(in srgb, var(--brand) 35%, transparent); }
.section__title a:hover { border-bottom-color: var(--brand); }

.prose p { margin: 0 0 18px; font-size: 17px; color: var(--text); }
.prose strong { font-weight: 600; }
.prose em { color: var(--brand-ink); font-style: normal; }

.ekoz-logo { width: clamp(160px, 22vw, 210px); height: auto; display: block; margin: 12px 0 0; }
html[data-theme="dark"] .ekoz-logo { filter: brightness(0) invert(1); }

.ekoz-intro { font-size: 17px; color: var(--text); line-height: 1.6; max-width: 580px; margin: 0 0 30px; }
.ekoz-intro strong { font-weight: 600; }

/* =========================== VÍDEOS =========================== */
.videos { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 22px; }
.video { display: flex; flex-direction: column; }
.video__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  border: 1px solid var(--line);
}
.video__frame img,
.video__frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; object-fit: cover; }
.video__frame img { transition: transform 0.5s var(--ease), opacity 0.3s; }
.video:hover .video__frame img { transform: scale(1.05); }
.video__play { position: absolute; inset: 0; display: grid; place-items: center; cursor: pointer; transition: background 0.3s; }
.video__play:hover { background: rgba(0, 0, 0, 0.15); }
.video__play::after {
  content: "";
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.94) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2311a7af'%3E%3Cpath d='M8 5v14l11-7z'/%3E%3C/svg%3E") no-repeat center / 26px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transition: transform 0.2s var(--ease);
}
.video__play:hover::after { transform: scale(1.1); }
.video__meta { padding: 18px 2px 0; }
.video__title { font-weight: 600; font-size: 16px; margin: 0; }
.video__tag { color: var(--muted); font-size: 13px; margin: 4px 0 0; }

/* =========================== GALERIA (mosaico compacto) =========================== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}
.gallery__item {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  aspect-ratio: 1;
  border-radius: 10px;
  overflow: hidden;
  cursor: zoom-in;
  background: var(--bg-alt);
  border: 1px solid var(--line);
}
.gallery__item img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 25%; /* viés pro topo: nunca corta a cabeça nas miniaturas verticais */
  transition: transform 0.5s var(--ease);
}
.gallery__item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(0, 0, 0, 0.22));
  opacity: 0;
  transition: opacity 0.3s;
}
.gallery__item:hover img { transform: scale(1.07); }
.gallery__item:hover::after { opacity: 1; }
@media (max-width: 520px) { .gallery { grid-template-columns: repeat(auto-fill, minmax(110px, 1fr)); gap: 8px; } }

/* LIGHTBOX */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(6, 7, 8, 0.94);
  display: grid;
  place-items: center;
  padding: 24px;
  animation: fade 0.25s var(--ease);
}
.lightbox[hidden] { display: none; }
.lightbox__img { max-width: min(92vw, 1200px); max-height: 88vh; border-radius: 12px; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6); animation: pop 0.3s var(--ease); }
.lightbox__close { position: absolute; top: 18px; right: 22px; background: none; border: 0; color: #fff; font-size: 42px; line-height: 1; cursor: pointer; opacity: 0.85; z-index: 2; }
.lightbox__close:hover { opacity: 1; }
.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
  transition: background 0.2s;
}
.lightbox__nav:hover { background: rgba(255, 255, 255, 0.24); }
.lightbox__nav--prev { left: 16px; }
.lightbox__nav--next { right: 16px; }
.lightbox__count { position: absolute; bottom: 22px; left: 50%; transform: translateX(-50%); color: rgba(255, 255, 255, 0.78); font-size: 14px; font-variant-numeric: tabular-nums; }
@media (max-width: 560px) {
  .lightbox__nav { width: 44px; height: 44px; font-size: 26px; }
  .lightbox__nav--prev { left: 8px; }
  .lightbox__nav--next { right: 8px; }
  .lightbox { padding: 12px; }
  .lightbox__img { max-width: 96vw; max-height: 82vh; }
}

/* Página de Projetos */
.page-head { padding-top: clamp(90px, 14vw, 150px); }
.page-head__title { font-size: clamp(46px, 9vw, 88px); line-height: 0.96; letter-spacing: -0.03em; font-weight: 800; margin: 18px 0 20px; }
.page-head__lead { font-size: clamp(16px, 2.2vw, 20px); color: var(--muted); max-width: 560px; margin: 0; }
.page-head__lead a { color: var(--brand-ink); text-decoration: none; border-bottom: 1px solid color-mix(in srgb, var(--brand) 35%, transparent); }
.page-head__lead a:hover { border-bottom-color: var(--brand); }

/* item ativo do menu */
.nav__links a[aria-current="page"] { color: var(--text); }
.nav__links a[aria-current="page"]::after { transform: scaleX(1); }
@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: scale(0.96); } }

/* =========================== CRÉDITOS =========================== */
.credits { list-style: none; margin: 0; padding: 0; }
.credit {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 22px;
  align-items: baseline;
  padding: 20px 14px;
  margin: 0 -14px;
  border-top: 1px solid var(--line);
  border-radius: 10px;
  transition: background 0.25s, padding 0.25s;
}
.credits .credit:last-child { border-bottom: 1px solid var(--line); }
.credit:hover { background: var(--bg-alt); }
.credit__year { color: var(--brand-ink); font-variant-numeric: tabular-nums; font-size: 14px; font-weight: 600; }
.credit__title { font-weight: 600; font-size: 17px; }
.credit__role { color: var(--muted); font-size: 14px; text-align: right; }

/* =========================== LINKS =========================== */
.links { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  background: var(--surface);
  font-weight: 500;
  transition: transform 0.2s var(--ease), border-color 0.2s, box-shadow 0.2s;
}
.link:hover { transform: translateY(-3px); border-color: var(--brand); box-shadow: var(--shadow); }
.link__arrow { color: var(--muted); font-size: 18px; transition: transform 0.25s var(--ease), color 0.2s; }
.link:hover .link__arrow { transform: translate(3px, -3px); color: var(--brand); }

/* =========================== FOOTER =========================== */
.footer { position: relative; z-index: 2; border-top: 1px solid var(--line); padding: 36px 0; }
.footer__inner { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; color: var(--muted); font-size: 14px; }
.footer__inner a { text-decoration: none; }
.footer__inner a:hover { color: var(--text); }

/* =========================== REVEAL (scroll) =========================== */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  filter: blur(10px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease), filter 0.8s var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.reveal.is-in { filter: blur(0); }
.reveal.is-in { opacity: 1; transform: none; }
/* sem JS, o conteúdo aparece normalmente (não fica preso invisível) */
html:not(.js) .reveal { opacity: 1 !important; transform: none !important; filter: none !important; }

/* =========================== RESPONSIVE =========================== */
@media (max-width: 820px) {
  /* menu visível no celular: marca + tema na 1ª linha, links quebram abaixo */
  .nav__inner { flex-wrap: wrap; height: auto; padding: 11px 0; row-gap: 9px; }
  .nav__brand { order: 1; }
  .theme-toggle { order: 2; }
  .nav__links {
    order: 3;
    width: 100%;
    flex-wrap: wrap;
    gap: 9px 18px;
    font-size: 13px;
  }
  .section__grid { grid-template-columns: 1fr; gap: 24px; }
  .credit { grid-template-columns: 56px 1fr; }
  .credit__role { grid-column: 2; text-align: left; }
}

/* =========================== REDUCED MOTION =========================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; filter: none; transition: none; }
  .hero__aura span, .marquee__track, .hero__title, .hero::before { animation: none; }
  * { transition-duration: 0.001ms !important; }
}

/* =========================== Toques futuristas =========================== */
/* reserva a altura da nav (preenchida via JS) pra não dar salto no carregamento */
.nav { min-height: 65px; }

/* nome do hero com um brilho ciano passando devagar */
.hero__title {
  background: linear-gradient(100deg, var(--text) 0%, var(--text) 42%, var(--brand) 50%, var(--text) 58%, var(--text) 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: sheen 7s ease-in-out infinite;
}
.hero__dot { -webkit-text-fill-color: var(--brand); }
@keyframes sheen {
  0%, 100% { background-position: 130% 0; }
  50% { background-position: -30% 0; }
}

/* grade techno sutil derivando no fundo do hero */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 75% 55% at 50% 28%, #000 25%, transparent 72%);
  mask-image: radial-gradient(ellipse 75% 55% at 50% 28%, #000 25%, transparent 72%);
  animation: griddrift 26s linear infinite;
}
@keyframes griddrift { to { background-position: 46px 46px, 46px 46px; } }

/* glow ciano nos elementos de marca ao passar o mouse */
.btn--primary:hover { box-shadow: var(--shadow), 0 0 34px color-mix(in srgb, var(--brand) 40%, transparent); }
.social:hover, .link:hover { box-shadow: var(--shadow), 0 0 26px color-mix(in srgb, var(--brand) 26%, transparent); }

/* tilt 3D dos cards */
.tilt { will-change: transform; }