/* ============================================================
   AMIG CARBON FIBER — Redesign Portfolio
   Identidade: grafite/preto + vermelho-alaranjado + branco
   Acento (do logo): roxo profundo #342483
   ============================================================ */

:root {
  --grafite: #1a1a1a;
  --grafite-2: #222222;
  --cinza: #6b6b6b;
  --cinza-claro: #f4f4f4;
  --branco: #ffffff;
  --accent: #fb4848;          /* vermelho-alaranjado do tema */
  --accent-dark: #e03a3a;
  --roxo: #342483;            /* roxo do logo */
  --fonte-corpo: 'Inter', system-ui, sans-serif;
  --fonte-titulo: 'Rajdhani', 'Inter', sans-serif;
  --sombra: 0 10px 40px rgba(0,0,0,.08);
  --radius: 12px;
  --max-w: 1160px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--fonte-corpo);
  color: var(--grafite-2);
  line-height: 1.65;
  background: var(--branco);
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

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

/* ===== CABEÇALHO ===== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: transparent;
  border-bottom: 3px solid transparent;
  transition: background .3s ease, border-color .3s ease;
}
.site-header.scrolled {
  background: rgba(24,18,58,.95);
  backdrop-filter: blur(8px);
  border-bottom: 3px solid var(--accent);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: center; }
.brand-logo {
  height: 46px;
  width: auto;
  border-radius: 6px;
  object-fit: contain;
}
.main-nav ul { display: flex; gap: 32px; }
.nav-link {
  color: #e8e8e8;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: .02em;
  padding: 6px 0;
  position: relative;
  transition: color .2s;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width .25s;
}
.nav-link:hover { color: var(--branco); }
.nav-link:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  background: none; border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 26px; height: 3px;
  background: var(--branco);
  margin: 5px 0;
  border-radius: 2px;
  transition: .3s;
}

/* ===== HERO ===== */
.hero {
  background:
    linear-gradient(135deg, rgba(20,20,20,.95), rgba(28,20,70,.92)),
    repeating-linear-gradient(45deg, rgba(255,255,255,.03) 0 2px, transparent 2px 8px);
  color: var(--branco);
  padding: 180px 0 110px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  right: -120px; top: 50%;
  transform: translateY(-50%);
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(251,72,72,.25), transparent 70%);
  filter: blur(20px);
}
.hero-inner { position: relative; max-width: 720px; }
.hero-eyebrow {
  font-family: var(--fonte-titulo);
  text-transform: uppercase;
  letter-spacing: .28em;
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 20px;
}
.hero-title {
  font-family: var(--fonte-titulo);
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: 24px;
}
.hero-title .accent { color: var(--accent); }
.hero-sub {
  font-size: 1.15rem;
  color: #d6d6d6;
  max-width: 560px;
  margin-bottom: 36px;
}
.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 560px;
}
.stat {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 18px;
}
.stat-num {
  display: block;
  font-family: var(--fonte-titulo);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label { font-size: .85rem; color: #c8c8c8; }

/* ===== BOTÕES ===== */
.btn {
  display: inline-block;
  padding: 14px 28px;
  font-weight: 700;
  font-size: 15px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: transform .15s, background .2s, box-shadow .2s;
  font-family: var(--fonte-corpo);
}
.btn-primary {
  background: var(--accent);
  color: var(--branco);
  box-shadow: 0 6px 20px rgba(251,72,72,.35);
}
.btn-primary:hover { background: var(--accent-dark); transform: translateY(-2px); }
.btn-ghost {
  background: transparent;
  color: var(--branco);
  border: 2px solid rgba(255,255,255,.4);
}
.btn-ghost:hover { border-color: var(--branco); background: rgba(255,255,255,.08); }
.btn-sm { padding: 9px 18px; font-size: 13px; }

/* ===== SECÇÕES ===== */
.section { padding: 96px 0; }
.section-alt { background: var(--cinza-claro); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.eyebrow {
  font-family: var(--fonte-titulo);
  text-transform: uppercase;
  letter-spacing: .24em;
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--fonte-titulo);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--grafite);
  line-height: 1.15;
  margin-bottom: 12px;
}
.section-sub { color: var(--cinza); font-size: 1.05rem; }

/* ===== SOBRE ===== */
.sobre-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 48px;
  align-items: start;
}
.sobre-texto p { margin-bottom: 18px; color: #444; }
.sobre-texto strong { color: var(--grafite); }
.sobre-lista {
  background: var(--grafite);
  color: var(--branco);
  border-radius: var(--radius);
  padding: 32px;
  border-top: 4px solid var(--accent);
  box-shadow: var(--sombra);
}
.sobre-lista h3 {
  font-family: var(--fonte-titulo);
  font-size: 1.5rem;
  margin-bottom: 20px;
  color: var(--accent);
}
.sobre-lista li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  gap: 12px;
}
.sobre-lista li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
}
.sobre-lista li:last-child { border-bottom: none; }

/* ===== PORTFÓLIO ===== */
.filters {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-btn {
  padding: 10px 24px;
  border-radius: 30px;
  border: 2px solid #ddd;
  background: transparent;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: .2s;
  font-family: var(--fonte-corpo);
  color: var(--grafite-2);
}
.filter-btn:hover { border-color: var(--accent); }
.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--branco);
}
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}
.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--sombra);
  cursor: pointer;
  aspect-ratio: 16 / 10;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s;
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item figcaption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 18px;
  background: linear-gradient(transparent, rgba(0,0,0,.82));
  color: var(--branco);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.tag {
  align-self: flex-start;
  font-family: var(--fonte-titulo);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: .12em;
  background: var(--accent);
  color: var(--branco);
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 700;
}
.cap-title { font-weight: 600; font-size: 15px; }
.gallery-item.hidden { display: none; }

/* ===== SERVIÇOS ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
}
.card {
  background: var(--branco);
  border: 1px solid #eee;
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--sombra);
  transition: transform .2s, border-color .2s;
}
.card:hover { transform: translateY(-5px); border-color: var(--accent); }
.card-icon {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 18px;
}
.card-title {
  font-family: var(--fonte-titulo);
  font-size: 1.35rem;
  margin-bottom: 10px;
  color: var(--grafite);
}
.card p { color: var(--cinza); font-size: .95rem; }

/* ===== MARCAS ===== */
.brands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 28px;
  align-items: center;
}
.brands-grid img {
  width: 100%;
  max-height: 80px;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: .65;
  transition: .3s;
}
.brands-grid img:hover {
  filter: grayscale(0);
  opacity: 1;
}

/* ===== CONTACTO ===== */
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
  align-items: start;
}
.contacto-info h3 {
  font-family: var(--fonte-titulo);
  font-size: 1.5rem;
  color: var(--grafite);
  margin-bottom: 20px;
}
.contact-list { margin-bottom: 32px; }
.contact-list li {
  display: flex;
  flex-direction: column;
  padding: 14px 0;
  border-bottom: 1px solid #eee;
}
.contact-label {
  font-family: var(--fonte-titulo);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cinza);
  font-weight: 700;
  margin-bottom: 4px;
}
.contact-list a { font-weight: 600; color: var(--grafite); }
.contact-list a:hover { color: var(--accent); }
.contacto-cta {
  background: var(--grafite);
  color: var(--branco);
  padding: 28px;
  border-radius: var(--radius);
  border-top: 4px solid var(--accent);
  text-align: center;
  max-width: 720px;
  margin: 40px auto 0;
}
.contacto-cta p { margin-bottom: 18px; color: #d6d6d6; }
.contacto-cta .btn { margin: 4px; }

.contacto-form {
  background: var(--cinza-claro);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid #eee;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--grafite);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #ddd;
  border-radius: 8px;
  font-family: var(--fonte-corpo);
  font-size: 15px;
  background: var(--branco);
  transition: border-color .2s;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-note { font-size: .82rem; color: var(--cinza); margin-top: 14px; }
.form-note a { color: var(--accent); text-decoration: underline; }

/* Cartão CTA de contacto (substitui o formulário — sites estáticos não têm backend) */
.contacto-form h3 { margin-bottom: 12px; }
.contacto-form > p { color: var(--cinza); margin-bottom: 22px; line-height: 1.6; }
.btn-lg { padding: 15px 30px; font-size: 16px; }

/* ===== RODAPÉ ===== */
.site-footer {
  background: var(--grafite);
  color: #b8b8b8;
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand img { height: 44px; width: auto; border-radius: 6px; margin-bottom: 16px; }
.footer-brand p { font-size: .9rem; max-width: 260px; }
.footer-col h4 {
  font-family: var(--fonte-titulo);
  color: var(--branco);
  font-size: 1.1rem;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.footer-col ul li { margin-bottom: 10px; }
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  text-align: center;
  font-size: .85rem;
}

/* ===== BANNER COOKIES ===== */
.cookie-banner {
  position: fixed;
  bottom: 20px; left: 20px; right: 20px;
  max-width: 560px;
  margin: 0 auto;
  background: var(--grafite);
  color: var(--branco);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: 0 10px 40px rgba(0,0,0,.4);
  z-index: 200;
  border-left: 4px solid var(--accent);
  transform: translateY(120%);
  transition: transform .4s ease;
}
.cookie-banner.show { transform: translateY(0); }
.cookie-content p { font-size: .9rem; margin-bottom: 16px; }
.cookie-content a { color: var(--accent); text-decoration: underline; }
.cookie-actions { display: flex; gap: 12px; }

/* ===== RESPONSIVO ===== */
@media (max-width: 900px) {
  .sobre-grid, .contacto-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: rgba(24,18,58,.98);
    padding: 24px;
    transform: translateX(100%);
    transition: transform .3s;
    border-bottom: 3px solid var(--accent);
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 18px; }
  .hero { padding: 150px 0 80px; }
  .hero-stats { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
}