/* ============================================
   BR EXPERT ASSESSORIA - HEADER & NAVIGATION
   ============================================ */

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

:root {
  --primary-dark: #0f1b2e;
  --primary-blue: #1e3a5f;
  --accent-gold: #d4a574;
  --accent-gold-dark: #c49563;
  --text-light: #ffffff;
  --text-dark: #0f1b2e;
  --border-color: #e0e0e0;
  --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.15);
  --shadow-heavy: 0 8px 32px rgba(0, 0, 0, 0.2);
  --transition-speed: 0.3s ease-in-out;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text-dark);
  background-color: #f8f9fa;
}

/* ============================================
   HEADER WRAPPER
   ============================================ */

.header-wrapper {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
  box-shadow: var(--shadow-heavy);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 3px solid var(--accent-gold);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

/* ============================================
   LOGO
   ============================================ */

.header-logo {
  flex-shrink: 0;
  margin-right: 3rem;
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: transform var(--transition-speed);
}

.logo-link:hover {
  transform: scale(1.05);
}

.logo-image {
  height: 60px;
  width: auto;
  object-fit: contain;
}

/* ============================================
   DESKTOP NAVIGATION
   ============================================ */

.nav-desktop {
  flex: 1;
  display: none;
}

@media (min-width: 1024px) {
  .nav-desktop {
    display: block;
  }
}

.nav-list {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--text-light);
  text-decoration: none;
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-speed);
  border-radius: 4px;
  position: relative;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-dark));
  transition: width var(--transition-speed);
  border-radius: 2px;
}

.nav-link:hover {
  background-color: rgba(212, 165, 116, 0.15);
  color: var(--accent-gold);
}

.nav-link:hover::before {
  width: 100%;
}

.nav-arrow {
  font-size: 0.7rem;
  transition: transform var(--transition-speed);
}

.nav-item:hover .nav-arrow {
  transform: rotate(180deg);
}

/* ============================================
   SUBMENU (DESKTOP)
   ============================================ */

.submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--primary-blue);
  border-radius: 8px;
  box-shadow: var(--shadow-heavy);
  list-style: none;
  min-width: 250px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-speed);
  margin-top: 0.5rem;
  border-top: 3px solid var(--accent-gold);
}

.nav-item:hover .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.submenu-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.submenu-item:last-child {
  border-bottom: none;
}

.submenu-link {
  color: var(--text-light);
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  display: block;
  font-size: 0.95rem;
  transition: all var(--transition-speed);
  position: relative;
  padding-left: 2rem;
}

.submenu-link::before {
  content: '→';
  position: absolute;
  left: 0.75rem;
  color: var(--accent-gold);
  opacity: 0;
  transition: opacity var(--transition-speed);
}

.submenu-link:hover {
  background-color: rgba(212, 165, 116, 0.2);
  color: var(--accent-gold);
  padding-left: 2.5rem;
}

.submenu-link:hover::before {
  opacity: 1;
}

/* ============================================
   CTA BUTTON (DESKTOP)
   ============================================ */

.header-cta {
  margin-left: 1rem;
  display: none;
}

@media (min-width: 1024px) {
  .header-cta {
    display: block;
  }
}

.cta-button {
  background: linear-gradient(135deg, var(--accent-gold), var(--accent-gold-dark));
  color: var(--text-dark);
  padding: 0.75rem 1.75rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-speed);
  display: inline-block;
  box-shadow: 0 4px 12px rgba(212, 165, 116, 0.3);
  border: none;
  cursor: pointer;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 165, 116, 0.4);
}

.cta-button:active {
  transform: translateY(0);
}

/* ============================================
   MOBILE MENU TOGGLE
   ============================================ */

.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  font-size: 1.5rem;
  transition: color var(--transition-speed);
  padding: 0.5rem;
}

.mobile-menu-toggle:hover {
  color: var(--accent-gold);
}

@media (min-width: 1024px) {
  .mobile-menu-toggle {
    display: none;
  }
}

/* ============================================
   MOBILE NAVIGATION
   ============================================ */

.nav-mobile {
  display: none;
  background: var(--primary-blue);
  border-top: 1px solid rgba(212, 165, 116, 0.3);
  animation: slideDown 0.3s ease-in-out;
}

.nav-mobile.active {
  display: block;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.mobile-nav-list {
  list-style: none;
  padding: 1rem 0;
}

.mobile-nav-item {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 1rem 2rem;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-speed);
  text-align: left;
}

.mobile-nav-link:hover {
  background-color: rgba(212, 165, 116, 0.15);
  color: var(--accent-gold);
  padding-left: 2.5rem;
}

.submenu-toggle {
  transition: transform var(--transition-speed);
  color: var(--accent-gold);
  font-size: 0.8rem;
}

.submenu-toggle.active {
  transform: rotate(180deg);
}

/* ============================================
   MOBILE SUBMENU
   ============================================ */

.mobile-submenu {
  list-style: none;
  background-color: rgba(0, 0, 0, 0.2);
  animation: slideDown 0.3s ease-in-out;
}

.mobile-submenu-item {
  border: none;
}

.mobile-submenu-link {
  display: block;
  padding: 0.75rem 3rem;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  font-size: 0.9rem;
  transition: all var(--transition-speed);
  border-left: 3px solid transparent;
}

.mobile-submenu-link:hover {
  background-color: rgba(212, 165, 116, 0.15);
  color: var(--accent-gold);
  border-left-color: var(--accent-gold);
  padding-left: 3.5rem;
}

/* ============================================
   MOBILE CTA
   ============================================ */

.mobile-cta {
  border: none;
  padding: 1rem 2rem;
}

.mobile-cta .cta-button {
  width: 100%;
  text-align: center;
}

/* ============================================
   RESPONSIVE ADJUSTMENTS
   ============================================ */

@media (max-width: 1023px) {
  .header-container {
    padding: 0 1rem;
    height: 70px;
  }

  .header-logo {
    margin-right: 1rem;
  }

  .logo-image {
    height: 50px;
  }
}

@media (max-width: 640px) {
  .header-container {
    padding: 0 1rem;
    height: 60px;
  }

  .header-logo {
    margin-right: 0.5rem;
  }

  .logo-image {
    height: 45px;
  }

  .mobile-nav-link {
    padding: 0.75rem 1.5rem;
  }

  .mobile-submenu-link {
    padding: 0.5rem 2.5rem;
  }
}

/* ============================================
   ANIMATIONS & EFFECTS
   ============================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.header-wrapper {
  animation: fadeIn 0.5s ease-in-out;
}

.nav-item {
  animation: slideInLeft 0.5s ease-in-out;
}

.nav-item:nth-child(1) { animation-delay: 0.1s; }
.nav-item:nth-child(2) { animation-delay: 0.2s; }
.nav-item:nth-child(3) { animation-delay: 0.3s; }
.nav-item:nth-child(4) { animation-delay: 0.4s; }
.nav-item:nth-child(5) { animation-delay: 0.5s; }
.nav-item:nth-child(6) { animation-delay: 0.6s; }