/* ═══════════════════════════════════════════════
   LAYOUT — Header, Footer, Navegação
   ═══════════════════════════════════════════════ */

/* --- HEADER / MENU FIXO --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 50;
  background: var(--color-deep-purple);
  will-change: opacity, transform;
  animation: slideDown 0.6s ease-out forwards;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
  background: rgba(33, 24, 64, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(33, 24, 64, 0.3);
}

.header.hidden {
  transform: translateY(-100%);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--container-padding);
  max-width: var(--container-max);
  margin-inline: auto;
}

/* Logo */
.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--font-size-xl);
  z-index: 52;
}

.header-logo .logo-mark {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-cyan), var(--color-magenta));
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-white);
}

/* Desktop Nav */
.nav-desktop {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

.nav-desktop a {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition-fast);
  position: relative;
}

.nav-desktop a:hover {
  color: var(--color-cyan);
}

.nav-desktop a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-cyan);
  transition: width var(--transition-base);
}

.nav-desktop a:hover::after {
  width: 100%;
}

@media (min-width: 1024px) {
  .nav-desktop { display: flex; }
  .hamburger { display: none !important; }
}

/* Botão CTA do header */
.header-cta {
  display: none;
}

@media (min-width: 1024px) {
  .header-cta {
    display: inline-flex;
    padding: 0.625rem 1.5rem;
    font-size: var(--font-size-xs);
  }
}

/* --- HAMBURGER --- */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  z-index: 52;
  cursor: pointer;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- MOBILE NAV OVERLAY --- */
.nav-mobile {
  position: fixed;
  inset: 0;
  background: var(--color-deep-purple);
  z-index: 51;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.nav-mobile.active {
  opacity: 1;
  pointer-events: all;
}

.nav-mobile a {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--font-size-2xl);
  color: var(--color-white);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

.nav-mobile.active a {
  opacity: 1;
  transform: translateY(0);
}

.nav-mobile.active a:nth-child(1) { transition-delay: 0.05s; }
.nav-mobile.active a:nth-child(2) { transition-delay: 0.1s; }
.nav-mobile.active a:nth-child(3) { transition-delay: 0.15s; }
.nav-mobile.active a:nth-child(4) { transition-delay: 0.2s; }
.nav-mobile.active a:nth-child(5) { transition-delay: 0.25s; }
.nav-mobile.active a:nth-child(6) { transition-delay: 0.3s; }
.nav-mobile.active a:nth-child(7) { transition-delay: 0.35s; }
.nav-mobile.active a:nth-child(8) { transition-delay: 0.4s; }

.nav-mobile a:hover {
  color: var(--color-cyan);
}

.nav-mobile .btn {
  margin-top: var(--space-md);
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

.nav-mobile.active .btn {
  opacity: 1;
  transform: translateY(0);
  transition-delay: 0.45s;
}

/* --- FOOTER --- */
.footer {
  background: var(--color-deep-purple);
  color: var(--color-white);
  padding-top: var(--space-3xl);
}

.footer-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

@media (min-width: 768px) {
  .footer-main {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer-brand {
  max-width: 300px;
}

.footer-brand .header-logo {
  margin-bottom: var(--space-md);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.footer-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--font-size-sm);
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-lg);
}

.footer-links a {
  display: block;
  padding: var(--space-xs) 0;
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-body);
  font-size: var(--font-size-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-cyan);
}

/* Redes Sociais */
.footer-social {
  display: flex;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  transition: all var(--transition-base);
}

.footer-social a:hover {
  border-color: var(--color-cyan);
  color: var(--color-cyan);
  transform: translateY(-2px);
}

.footer-social a i {
  font-size: 18px;
}

/* Footer bottom */
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--space-xl) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: center;
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-bottom p,
.footer-bottom a {
  font-family: var(--font-body);
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a:hover {
  color: var(--color-cyan);
}

.footer-legal-links {
  display: flex;
  gap: var(--space-lg);
}