/* Studio Vizzio — sistema de marca aplicado ao site institucional
   Ref.: 00-Marca/manual-marca.md — sem caixas, fotografia em grande formato,
   divisores finos, barra "|" como motivo gráfico, campos underline. */

:root {
  --ink: #0d0d0d;
  --graphite: #2b2b2b;
  --steel: #6b6b6b;
  --mist: #b5b5b5;
  --fog: #ededed;
  --paper: #ffffff;
  --signal: #b5451c;

  --font: 'Montserrat', sans-serif;
  --container: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-weight: 400;
  background: var(--ink);
  color: var(--fog);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.bar {
  color: var(--signal);
  font-weight: 300;
}

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 22px 0;
  background: linear-gradient(to bottom, rgba(13,13,13,0.85), rgba(13,13,13,0));
  transition: background 0.25s ease;
}
.site-header.scrolled {
  background: var(--ink);
  box-shadow: 0 1px 0 var(--graphite);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 18px;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.logo .studio { font-weight: 800; }
.logo .vizzio { font-weight: 300; }
.logo .tagline {
  display: block;
  font-weight: 300;
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: lowercase;
  color: var(--mist);
  margin-top: 2px;
}
.logo .tagline .bar { margin: 0 0.5em; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.nav-links a {
  padding: 0 16px;
  color: var(--fog);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--signal); }
.nav-links span.bar { color: var(--mist); }

.nav-toggle {
  display: none;
  position: relative;
  z-index: 101;
  background: none;
  border: none;
  color: var(--fog);
  font-size: 24px;
  cursor: pointer;
}

@media (max-width: 780px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: 70vw;
    background: var(--ink);
    padding: 100px 32px;
    gap: 24px;
    align-items: flex-start;
    border-left: 1px solid var(--graphite);
  }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  background: #111;
  overflow: hidden;
}
.hero-slideshow {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  animation-name: heroFade;
  animation-duration: 72s;
  animation-iteration-count: infinite;
}
@keyframes heroFade {
  0%   { opacity: 0; }
  1%   { opacity: 1; }
  10%  { opacity: 1; }
  11%  { opacity: 0; }
  100% { opacity: 0; }
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(to top, rgba(13,13,13,0.92) 10%, rgba(13,13,13,0.35) 55%, rgba(13,13,13,0.55) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  padding-bottom: 96px;
  max-width: 820px;
}
.hero h1 {
  font-weight: 800;
  font-size: clamp(32px, 5.2vw, 64px);
  line-height: 1.08;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}
.hero p {
  font-weight: 300;
  font-size: clamp(16px, 1.6vw, 20px);
  color: var(--fog);
  max-width: 560px;
  margin: 0 0 40px;
}
.cta-row { display: flex; gap: 32px; align-items: center; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 14px 28px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--signal);
  color: var(--paper);
  transition: opacity 0.2s;
}
.btn:hover { opacity: 0.85; }

.btn-ghost {
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--mist);
  padding-bottom: 4px;
  transition: border-color 0.2s, color 0.2s;
}
.btn-ghost:hover { border-color: var(--signal); color: var(--signal); }

.scroll-cue {
  position: absolute;
  z-index: 2;
  right: var(--gutter);
  bottom: 40px;
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--mist);
}

/* ---------- Section shell ---------- */

section { padding: 120px 0; }
.section-divider { border: none; border-top: 1px solid var(--graphite); margin: 0; }

.eyebrow {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 18px;
}
.section-title {
  font-weight: 800;
  font-size: clamp(26px, 3.4vw, 42px);
  line-height: 1.15;
  margin: 0 0 24px;
  max-width: 760px;
}
.section-lead {
  font-weight: 300;
  color: var(--steel);
  max-width: 560px;
  font-size: 16px;
  line-height: 1.7;
}

/* ---------- Pilares ---------- */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 72px;
}
.pillar {
  padding: 0 40px 0 0;
  border-left: 1px solid var(--graphite);
  padding-left: 40px;
}
.pillar:first-child { border-left: none; padding-left: 0; }
.pillar .num {
  font-weight: 800;
  font-size: 13px;
  color: var(--signal);
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  display: block;
}
.pillar h3 {
  font-weight: 800;
  font-size: 22px;
  margin: 0 0 14px;
}
.pillar p {
  font-weight: 300;
  color: var(--steel);
  line-height: 1.7;
  font-size: 15px;
  margin: 0;
}

@media (max-width: 860px) {
  .pillars { grid-template-columns: 1fr; gap: 48px; }
  .pillar { border-left: none; padding-left: 0; border-top: 1px solid var(--graphite); padding-top: 32px; }
  .pillar:first-child { border-top: none; padding-top: 0; }
}

/* ---------- Portal do Cliente ---------- */

.portal {
  background: var(--graphite);
}
.portal-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: center;
}
.portal-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--mist);
  border: 1px solid var(--mist);
  padding: 6px 14px;
  margin-bottom: 24px;
}
.portal-visual {
  border-left: 1px solid var(--mist);
  padding-left: 40px;
}
.portal-visual ul { list-style: none; margin: 0; padding: 0; }
.portal-visual li {
  padding: 18px 0;
  border-top: 1px solid #444;
  font-weight: 300;
  font-size: 15px;
  color: var(--fog);
  display: flex;
  justify-content: space-between;
}
.portal-visual li:first-child { border-top: none; }
.portal-visual li span.bar { margin-right: 12px; }

@media (max-width: 860px) {
  .portal-grid { grid-template-columns: 1fr; gap: 48px; }
  .portal-visual { border-left: none; padding-left: 0; border-top: 1px solid var(--mist); padding-top: 32px; }
}

/* ---------- Portfólio ---------- */

.portfolio-header { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; margin-bottom: 64px; }

.project-block {
  display: block;
  position: relative;
  border-top: 1px solid var(--graphite);
  padding: 48px 0;
}
.project-block:last-child { border-bottom: 1px solid var(--graphite); }

.project-row {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
}
.project-row.reverse { grid-template-columns: 1fr 1.3fr; }
.project-row.reverse .project-media { order: 2; }
.project-row.reverse .project-info { order: 1; }

.project-media { overflow: hidden; }
.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  transition: transform 0.6s ease;
}
.project-block:hover .project-media img { transform: scale(1.03); }

.project-info .index {
  font-size: 12px;
  color: var(--signal);
  letter-spacing: 0.15em;
  margin-bottom: 16px;
  display: block;
}
.project-info h3 {
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 32px);
  margin: 0 0 10px;
}
.project-info .type {
  font-weight: 300;
  color: var(--mist);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
}
.project-info .view {
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--mist);
  display: inline-block;
  padding-bottom: 4px;
}
.project-block:hover .project-info .view { border-color: var(--signal); color: var(--signal); }

@media (max-width: 780px) {
  .project-row, .project-row.reverse {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .project-row.reverse .project-media,
  .project-row.reverse .project-info { order: initial; }
}

/* ---------- Contato ---------- */

.contact { background: var(--fog); color: var(--ink); }
.contact .eyebrow { color: var(--signal); }
.contact .section-lead { color: var(--steel); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  margin-top: 56px;
}

.contact-direct { border-left: 1px solid var(--mist); padding-left: 40px; }
.contact-direct .label {
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 10px;
  display: block;
}
.contact-direct .value {
  font-weight: 800;
  font-size: 20px;
  margin: 0 0 36px;
}
.contact-direct .whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--ink);
  color: var(--paper);
  padding: 16px 30px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.contact-direct .whatsapp-btn:hover { background: var(--signal); }

form.contact-form { display: flex; flex-direction: column; gap: 28px; }
.field { position: relative; }
.field label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 8px;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  border: none;
  border-bottom: 1px solid var(--mist);
  background: transparent;
  font-family: var(--font);
  font-size: 16px;
  font-weight: 300;
  padding: 8px 2px;
  color: var(--ink);
  border-radius: 0;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-bottom-color: var(--signal);
}
.field textarea { resize: vertical; min-height: 70px; }

.form-submit {
  align-self: flex-start;
  margin-top: 8px;
  background: var(--ink);
  color: var(--paper);
  border: none;
  cursor: pointer;
  font-family: var(--font);
}
.form-submit:hover { background: var(--signal); }

.form-note { font-size: 13px; color: var(--steel); font-weight: 300; margin-top: -12px; }

@media (max-width: 860px) {
  .contact-grid { grid-template-columns: 1fr; gap: 56px; }
  .contact-direct { border-left: none; padding-left: 0; border-top: 1px solid var(--mist); padding-top: 32px; }
}

/* ---------- Footer ---------- */

.site-footer { padding: 64px 0 40px; }
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--graphite);
}
.footer-social {
  display: flex;
  gap: 0;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.footer-social a { padding: 0 14px; color: var(--fog); }
.footer-social a:first-child { padding-left: 0; }
.footer-social a:hover { color: var(--signal); }
.footer-social span.bar { color: var(--mist); }

.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: var(--steel);
  font-weight: 300;
}

/* ---------- Gallery pages ---------- */

.gallery-hero {
  padding: 160px 0 60px;
  border-bottom: 1px solid var(--graphite);
}
.gallery-hero .back {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: 28px;
  display: inline-block;
}
.gallery-hero .back:hover { color: var(--signal); }
.gallery-hero h1 { font-weight: 800; font-size: clamp(28px, 4vw, 48px); margin: 0 0 12px; }
.gallery-hero .type { color: var(--mist); font-weight: 300; letter-spacing: 0.1em; text-transform: uppercase; font-size: 13px; }

.gallery-grid {
  padding: 64px 0 120px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}
.gallery-grid button {
  border: none;
  padding: 0;
  background: none;
  cursor: pointer;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.gallery-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.gallery-grid button:hover img { transform: scale(1.05); }

@media (max-width: 780px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(13,13,13,0.97);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 40px;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 88vh; margin: 0 auto; }
.lightbox .close, .lightbox .prev, .lightbox .next {
  position: absolute;
  background: none;
  border: none;
  color: var(--fog);
  font-size: 28px;
  cursor: pointer;
}
.lightbox .close { top: 24px; right: 32px; }
.lightbox .prev { left: 24px; top: 50%; transform: translateY(-50%); font-size: 40px; }
.lightbox .next { right: 24px; top: 50%; transform: translateY(-50%); font-size: 40px; }

/* Portal do cliente no ar (28/08/2026) */
.portal-tag.ativo { color: var(--signal); border-color: var(--signal); }
.portal-visual li .sim { color: var(--signal); font-weight: 800; }
.portal-nota {
  margin: 18px 0 0;
  font-weight: 300;
  font-size: 13px;
  color: var(--steel);
}