:root {
  --dark: #020617;
  --dark2: #0f172a;
  --accent: #f97316;
  --accent2: #ea580c;
  --bg: #f8fafc;
  --text: #1e293b;
  --gray: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; font-family: "Segoe UI", Arial, sans-serif; background: var(--bg); color: var(--text); }
body { display: flex; flex-direction: column; }
main { flex: 1; }

/* HEADER */
header {
  background: linear-gradient(135deg, var(--dark), var(--dark2));
  color: white;
  padding: 16px 40px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.logo-text { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.5px; }
.logo-text span { color: var(--accent); }

/* NAV */
nav {
  background: var(--dark);
  display: flex;
  justify-content: center;
  gap: 40px;
  padding: 14px;
  border-bottom: 2px solid var(--accent);
}
nav a {
  color: #cbd5e1;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}
nav a:hover, nav a.active { color: var(--accent); }

/* SECTIONS */
section { display: none; padding: 60px 10%; }
section.active { display: block; }

/* HERO */
.hero {
  background: linear-gradient(135deg, var(--dark), var(--dark2));
  color: white;
  text-align: center;
  padding: 80px 20px;
}
.hero h1 { font-size: 2.8rem; margin-bottom: 16px; }
.hero h1 span { color: var(--accent); }
.hero p { font-size: 1.1rem; color: #94a3b8; max-width: 560px; margin: 0 auto 30px; }
.btn { display: inline-block; background: var(--accent); color: white; padding: 14px 32px; border-radius: 8px; font-weight: 700; cursor: pointer; border: none; font-size: 1rem; transition: background 0.2s, transform 0.1s; text-decoration: none; }
.btn:hover { background: var(--accent2); transform: translateY(-1px); }
.btn-outline { background: transparent; border: 2px solid white; }
.btn-outline:hover { background: white; color: var(--dark); }

/* STATS */
.stats { display: flex; justify-content: center; gap: 60px; padding: 40px; background: white; border-bottom: 1px solid var(--border); }
.stat { text-align: center; }
.stat strong { display: block; font-size: 2rem; color: var(--accent); font-weight: 700; }
.stat span { color: var(--gray); font-size: 0.9rem; }

/* GRID CARROS */
.section-title { font-size: 1.8rem; font-weight: 700; margin-bottom: 8px; }
.section-sub { color: var(--gray); margin-bottom: 32px; }
.carros-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.carro-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
}
.carro-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.12); }
.carro-img {
  width: 100%;
  height: 190px;
  object-fit: cover;
  background: #e2e8f0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.carro-img img { width: 100%; height: 100%; object-fit: cover; }
.carro-body { padding: 18px; }
.carro-marca { font-size: 0.8rem; color: var(--accent); font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.carro-nome { font-size: 1.2rem; font-weight: 700; margin: 4px 0 10px; }
.carro-detalhes { display: flex; gap: 14px; font-size: 0.85rem; color: var(--gray); margin-bottom: 14px; flex-wrap: wrap; }
.carro-preco { font-size: 1.4rem; font-weight: 700; color: var(--accent); margin-bottom: 14px; }
.btn-sm { padding: 10px 20px; font-size: 0.9rem; width: 100%; text-align: center; }

/* MODAL */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal {
  background: white;
  border-radius: 16px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 36px;
  position: relative;
}
.modal h2 { font-size: 1.4rem; margin-bottom: 6px; }
.modal .carro-ref { color: var(--accent); font-weight: 600; margin-bottom: 20px; }
.modal-close {
  position: absolute; top: 16px; right: 16px;
  width: 32px; height: 32px;
  border-radius: 50%; border: none;
  background: #f1f5f9; cursor: pointer;
  font-size: 1.1rem; display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: #e2e8f0; }

/* FORM */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { outline: none; border-color: var(--accent); }
.form-group textarea { resize: vertical; min-height: 90px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* SOBRE */
.sobre-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.sobre-card { background: white; border-radius: var(--radius); padding: 28px; box-shadow: 0 4px 16px rgba(0,0,0,0.06); }
.sobre-card h3 { margin-bottom: 10px; color: var(--accent); }

/* FOOTER */
footer {
  background: var(--dark);
  color: #94a3b8;
  text-align: center;
  padding: 24px;
  font-size: 0.9rem;
}
footer span { color: var(--accent); }

/* MSG */
.msg { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-weight: 500; }
.msg.success { background: #f0fdf4; color: #16a34a; border: 1px solid #86efac; }
.msg.error { background: #fef2f2; color: #dc2626; border: 1px solid #fca5a5; }

/* LOADING */
.loading { text-align: center; padding: 40px; color: var(--gray); }

@media (max-width: 768px) {
  section { padding: 40px 6%; }
  .hero h1 { font-size: 2rem; }
  .stats { gap: 30px; flex-wrap: wrap; }
  .sobre-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  nav { gap: 20px; flex-wrap: wrap; }
}