/* ============================================
   IMPERA HOUSE - ESTILOS GLOBAIS
   Paleta: Branco (#FFFFFF), Preto (#000000), Azul Marinho (#072B3E)
   Fonte: Roboto
   ============================================ */

:root {
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-navy: #072B3E;
  --color-light-gray: #F5F5F5;
  --color-border: #E0E0E0;
}

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

html, body {
  font-family: 'Roboto', sans-serif;
  color: var(--color-black);
  background-color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ============================================
   TIPOGRAFIA
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: 'Roboto', sans-serif;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 1rem;
}

h1 {
  font-size: 3rem;
  line-height: 1.2;
}

h2 {
  font-size: 2.5rem;
  line-height: 1.3;
}

h3 {
  font-size: 1.75rem;
  line-height: 1.4;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-black);
}

a {
  color: var(--color-navy);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--color-black);
  text-decoration: underline;
}

/* ============================================
   NAVBAR
   ============================================ */

.navbar {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-navy) !important;
  letter-spacing: 1px;
}

.navbar-nav .nav-link {
  color: var(--color-black) !important;
  font-weight: 500;
  margin-left: 1.5rem;
  transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
  color: var(--color-navy) !important;
}

.navbar-nav .nav-link.active {
  color: var(--color-navy) !important;
  border-bottom: 2px solid var(--color-navy);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, rgba(7, 43, 62, 0.9) 100%);
  color: var(--color-white);
  padding: 120px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><path d="M0,300 Q300,200 600,300 T1200,300 L1200,600 L0,600 Z" fill="rgba(255,255,255,0.05)"/></svg>');
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0.5;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  color: var(--color-white);
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero p {
  color: var(--color-white);
  font-size: 1.25rem;
  margin-bottom: 2rem;
  opacity: 0.95;
}

.btn-primary {
  background-color: var(--color-white);
  color: var(--color-navy);
  border: none;
  padding: 12px 40px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 4px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-primary:hover {
  background-color: var(--color-light-gray);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
  background-color: var(--color-navy);
  color: var(--color-white);
  border: 2px solid var(--color-white);
  padding: 12px 40px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 4px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  background-color: var(--color-white);
  color: var(--color-navy);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-navy);
  border: 2px solid var(--color-navy);
  padding: 12px 40px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 4px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-outline:hover {
  background-color: var(--color-navy);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

/* ============================================
   CARDS
   ============================================ */

.card {
  border: none;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  overflow: hidden;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.card-img-top {
  height: 250px;
  object-fit: cover;
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  color: var(--color-navy);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.card-text {
  color: var(--color-black);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ============================================
   SECTIONS
   ============================================ */

section {
  padding: 80px 0;
}

section.light-bg {
  background-color: var(--color-light-gray);
}

section.dark-bg {
  background-color: var(--color-navy);
  color: var(--color-white);
}

section.dark-bg h2,
section.dark-bg h3 {
  color: var(--color-white);
}

section.dark-bg p {
  color: var(--color-white);
  opacity: 0.95;
}

/* ============================================
   GRID E LAYOUT
   ============================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.row {
  display: grid;
  gap: 2rem;
}

.row.cols-1 {
  grid-template-columns: 1fr;
}

.row.cols-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.row.cols-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.row.cols-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: 60px 0 20px;
  margin-top: 80px;
}

footer h5 {
  color: var(--color-white);
  margin-bottom: 1rem;
  font-weight: 700;
}

footer p, footer a {
  color: var(--color-white);
  opacity: 0.9;
  font-size: 0.95rem;
  line-height: 1.8;
}

footer a:hover {
  opacity: 1;
  text-decoration: underline;
}

.footer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin: 2rem 0 1rem;
  padding-top: 1rem;
  text-align: center;
  font-size: 0.9rem;
  opacity: 0.8;
}

/* ============================================
   FORMULÁRIOS
   ============================================ */

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 0.5rem;
  display: block;
}

.form-control {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 12px 15px;
  font-family: 'Roboto', sans-serif;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.form-control:focus {
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(7, 43, 62, 0.1);
  outline: none;
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* ============================================
   IMAGENS
   ============================================ */

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

.img-fluid {
  max-width: 100%;
  height: auto;
}

.img-rounded {
  border-radius: 8px;
}

/* ============================================
   UTILITÁRIOS
   ============================================ */

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.text-navy {
  color: var(--color-navy);
}

.text-white {
  color: var(--color-white);
}

.text-muted {
  color: #999;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-5 { padding: 3rem; }

.pt-1 { padding-top: 0.5rem; }
.pt-2 { padding-top: 1rem; }
.pt-3 { padding-top: 1.5rem; }
.pt-4 { padding-top: 2rem; }
.pt-5 { padding-top: 3rem; }

.pb-1 { padding-bottom: 0.5rem; }
.pb-2 { padding-bottom: 1rem; }
.pb-3 { padding-bottom: 1.5rem; }
.pb-4 { padding-bottom: 2rem; }
.pb-5 { padding-bottom: 3rem; }

.display-flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

/* ============================================
   RESPONSIVIDADE
   ============================================ */

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .hero {
    padding: 80px 0;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero p {
    font-size: 1rem;
  }

  section {
    padding: 60px 0;
  }

  .row.cols-2,
  .row.cols-3,
  .row.cols-4 {
    grid-template-columns: 1fr;
  }

  .navbar-nav .nav-link {
    margin-left: 0;
    padding: 0.5rem 0;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .container {
    padding: 0 15px;
  }

  section {
    padding: 40px 0;
  }
}