/* ==========================================================
   Transportes RN Freitas — estilos
   ========================================================== */

:root{
  --bg: #14110d;
  --bg-alt: #1b170f;
  --ink: #f3ecdf;
  --ink-soft: #cabfa8;
  --gold: #c99a4b;
  --gold-light: #e8c785;
  --copper: #a8672f;
  --line: rgba(201,154,75,0.25);
  --green: #4c6b52;
  --radius: 6px;
  --maxw: 1180px;
  --ff-serif: "Playfair Display", Georgia, serif;
  --ff-sans: "Poppins", Arial, sans-serif;
}

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

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--ff-sans);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

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

.site-bg{
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  z-index: -1;
  pointer-events: none;
  /* opacidade real controlada via JS (CONFIG.backgroundImage.opacity) */
}
.site-particles{
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
main, .site-footer{
  position: relative;
  z-index: 1;
}

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

h1,h2,h3{
  font-family: var(--ff-serif);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.5em;
  color: var(--ink);
}

p{ margin: 0 0 1em; color: var(--ink-soft); }

section{ scroll-margin-top: 90px; }

.section-tag{
  display:inline-block;
  font-family: var(--ff-sans);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.9em;
}

/* ---------- botões ---------- */
.btn{
  display:inline-block;
  padding: 0.9em 1.9em;
  border-radius: var(--radius);
  font-family: var(--ff-sans);
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  border: 1px solid var(--gold);
  transition: all 0.25s ease;
}
.btn-primary{
  background: linear-gradient(135deg, var(--gold-light), var(--copper));
  color: #1a1408;
  font-weight: 600;
  border-color: transparent;
}
.btn-primary:hover{ filter: brightness(1.08); transform: translateY(-2px); }
.btn-ghost{
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover{ border-color: var(--gold); color: var(--gold-light); }

/* ==========================================================
   HEADER
   ========================================================== */
.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 1000;
  background: rgba(20,17,13,0.35);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: background 0.35s ease, border-color 0.35s ease, padding 0.35s ease;
}
.site-header.scrolled{
  background: rgba(20,17,13,0.92);
  border-bottom-color: var(--line);
}
.header-inner{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items:center;
  gap: 28px;
}
.logo-link{ display:flex; align-items:center; grid-column: 1; justify-self: start; }
.logo-img{ height: 64px; width:auto; transition: height 0.3s ease; }
.site-header.scrolled .logo-img{ height: 64px; }

.main-nav{ grid-column: 2; justify-self: center; }

.header-actions{
  grid-column: 3;
  justify-self: end;
  display:flex;
  align-items:center;
  gap: 20px;
}

.main-nav ul{
  display:flex;
  gap: 32px;
  list-style:none;
  margin:0; padding:0;
}
.main-nav a{
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
}
.main-nav a::after{
  content:"";
  position:absolute; left:0; bottom:0;
  width:0; height:1px;
  background: var(--gold);
  transition: width 0.25s ease;
}
.main-nav a:hover{ color: var(--ink); }
.main-nav a:hover::after{ width:100%; }

.header-cta{
  font-size: 0.9rem;
  color: var(--gold-light);
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: var(--radius);
  white-space: nowrap;
}
.header-cta:hover{ border-color: var(--gold); }

.menu-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:34px; height:34px;
  background:none; border:none; cursor:pointer;
}
.menu-toggle span{
  display:block; height:2px; width:100%;
  background: var(--gold-light);
}

/* ==========================================================
   INTRO — hero (partículas) + frase de efeito, presos ao scroll
   ========================================================== */
.intro{
  position: relative;
  /* altura definida via JS (CONFIG.intro.scrollLengthVh em js/script.js) */
}
.intro-sticky{
  position: sticky;
  top: 0;
  height: 90vh;
  overflow: hidden;
}
.intro-layer{
  position: absolute;
  inset: 0;
  display:flex;
  flex-direction: column;
  align-items:center;
  justify-content:center;
  text-align:center;
}

/* ---- camada hero ---- */
.intro-hero{ padding: 0 24px; }
.hero-content{
  position:relative;
  z-index:2;
  max-width: 760px;
}
.eyebrow{
  display:inline-block;
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 18px;
}
.hero-logo{
  max-width: min(640px, 70vw);
  margin: 0 auto 0.5em;
}
.hero-subtitle{
  color: var(--ink-soft);
  font-size: 1.08rem;
  max-width: 560px;
  margin: 0.6em auto 0;
}

.scroll-indicator{
  position:absolute;
  bottom: 34px; left:50%;
  transform: translateX(-50%);
  z-index:2;
  width: 26px; height: 42px;
  border: 1.5px solid var(--line);
  border-radius: 14px;
}
.scroll-indicator span{
  position:absolute;
  top:8px; left:50%;
  width:4px; height:8px;
  margin-left:-2px;
  border-radius:2px;
  background: var(--gold-light);
  animation: scrollDown 1.8s infinite;
}
@keyframes scrollDown{
  0%{ opacity:1; transform: translateY(0); }
  70%{ opacity:0; transform: translateY(14px); }
  100%{ opacity:0; }
}

/* ---- camada frase de efeito ---- */
.intro-frase{ padding: 0 24px; opacity:0; }
.frase-quote{
  margin: 0;
  max-width: 900px;
}
.frase-quote p{
  font-family: var(--ff-serif);
  font-style: italic;
  color: var(--ink);
  font-size: clamp(1.6rem, 4.4vw, 3rem);
  line-height: 1.35;
  margin:0;
}
.frase-autor{
  display:block;
  margin-top: 28px;
  font-style: normal;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  color: var(--gold-light);
  opacity: 0;
}

/* ==========================================================
   SOBRE
   ========================================================== */
.sobre{
  padding: 130px 0 60px;
}
.sobre-text-block{
  max-width: 720px;
  margin: 0 auto 40px;
  padding: 0 24px;
  text-align:center;
}
.sobre-text-block h2{ font-size: clamp(1.6rem, 3vw, 2.1rem); }
.sobre-text-block p{ text-align:left; }

/* ---- Foto que entra pela esquerda desfocada e vai focando ---- */
.image-slide{
  max-width: 1100px;
  margin: 0 auto 110px;
  padding: 0 24px;
}
.image-slide img{
  width:100%;
  border-radius: var(--radius);
  box-shadow: 0 40px 80px -30px rgba(0,0,0,0.7);
  border: 1px solid var(--line);
  will-change: transform, filter, opacity;
}

.missao{
  text-align:center;
  max-width: 760px;
  margin: 0 auto 110px;
  padding: 56px 32px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.missao p{
  font-family: var(--ff-serif);
  font-style: italic;
  font-size: clamp(1.2rem, 2.4vw, 1.6rem);
  color: var(--ink);
  margin:0;
}
.section-tag.light{ color: var(--gold-light); }

/* ==========================================================
   CLIENTES
   ========================================================== */
.clientes{
  background: rgba(232,199,133,0.035);
  padding: 110px 24px;
  text-align:center;
}
.section-head{ max-width: 640px; margin: 0 auto 60px; }
.section-head h2{ font-size: clamp(1.6rem, 3vw, 2.1rem); }

.clientes-row{
  max-width: var(--maxw);
  margin: 0 auto;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-wrap: wrap;
  gap: 64px 88px;
}
.cliente-item{
  flex: 0 0 auto;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap: 16px;
}
.cliente-item img{
  height: 84px; width:auto;
  transition: transform 0.3s ease;
}
.cliente-item:hover img{ transform: scale(1.3); }
.cliente-item span{
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  white-space: nowrap;
}

/* ==========================================================
   CONTATO
   ========================================================== */
.contato{
  padding: 110px 24px 90px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.contato-grid{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
}
.unidade-card{
  border-left: 2px solid var(--gold);
  padding-left: 20px;
  margin-bottom: 30px;
}
.unidade-card h3{ font-size: 1.1rem; margin-bottom: 0.4em; }
.unidade-card a{ color: var(--gold-light); }
.instagram-link{
  display:inline-block;
  margin-top: 10px;
  color: var(--gold-light);
  font-size: 0.95rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
}

.contato-form{
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px;
}
.form-row{ margin-bottom: 18px; }
.form-row label{
  display:block;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.form-row input, .form-row textarea{
  width:100%;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--ink);
  font-family: var(--ff-sans);
  font-size: 0.95rem;
  resize: vertical;
}
.form-row input:focus, .form-row textarea:focus{
  outline: none;
  border-color: var(--gold);
}
.honeypot{ position:absolute; left:-9999px; opacity:0; height:0; }
.contato-form button{ width:100%; border:none; cursor:pointer; }
.form-status{ margin: 12px 0 0; font-size: 0.88rem; min-height: 1.2em; }
.form-status.ok{ color: #8fbf8f; }
.form-status.err{ color: #d98484; }

/* ==========================================================
   FOOTER
   ========================================================== */
.site-footer{
  text-align:center;
  padding: 40px 24px;
  border-top: 1px solid var(--line);
}
.footer-logo{ height: 48px; margin: 0 auto 14px; opacity:0.85; }
.site-footer p{ font-size: 0.82rem; margin:0; color: var(--ink-soft); }

/* ==========================================================
   Scroll reveal
   ========================================================== */
.reveal{
  opacity:0;
  transform: translateY(36px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in-view{ opacity:1; transform: translateY(0); }

/* ==========================================================
   Responsivo
   ========================================================== */
@media (max-width: 900px){
  .contato-grid{ grid-template-columns: 1fr; }
  .header-cta{ display:none; }
}

@media (max-width: 760px){
  .main-nav{
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(78vw, 320px);
    background: var(--bg-alt);
    border-left: 1px solid var(--line);
    transform: translateX(100%);
    transition: transform 0.35s ease;
    display:flex;
    align-items:center;
  }
  .main-nav.open{ transform: translateX(0); }
  .main-nav ul{
    flex-direction:column;
    gap: 28px;
    padding: 0 40px;
  }
  .menu-toggle{ display:flex; }
}

@media (max-width: 520px){
  .clientes-row{ gap: 36px 48px; }
  .cliente-item img{ height: 64px; }
  .sobre{ padding-top: 110px; }
}