/**
 * CENOM - Main Layout
 * Header, hero, container, seções principais
 */

/* ═══════════════════════════════════════════
   HEADER - Sticky, Minimalista
   ═══════════════════════════════════════════ */

header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: var(--transition-fast);
}

header.header-scroll {
  box-shadow: var(--shadow-xs);
}

/* Navegação */
.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--spacing-sm) var(--container-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-dark);
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.logo:hover {
  opacity: 0.8;
}

@media (hover: hover) {
  .logo:hover {
    transform: scale(1.02);
    filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.1));
    opacity: 1;
  }
}

.logo-img {
  height: 50px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.05));
}

.logo-text {
  font-size: var(--text-h4);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.5px;
}

/* Menu principal */
.nav-menu {
  display: none;
  gap: var(--spacing-xl);
  list-style: none;
  align-items: center;
  flex: 1;
  justify-content: center;
}

.nav-menu li {
  margin: 0;
}

.nav-menu a {
  font-size: var(--text-body-sm);
  color: var(--color-gray-dark);
  text-decoration: none;
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
  position: relative;
}

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

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

.nav-menu a:hover {
  color: var(--color-primary);
}

/* Desktop navigation - show */
@media (min-width: 1024px) {
  .nav-menu {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }
}

/* Mobile menu toggle */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-gray-light);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-shrink: 0;
  transition: var(--transition-fast);
  margin-left: auto;
}

.nav-toggle:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: var(--transition-fast);
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 2px;
  background: currentColor;
  left: 0;
}

.nav-toggle span::before {
  top: -6px;
  transition: var(--transition-fast);
}

.nav-toggle span::after {
  bottom: -6px;
  transition: var(--transition-fast);
}

/* Menu mobile aberto */
.nav-toggle.active span {
  background: transparent;
}

.nav-toggle.active span::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle.active span::after {
  bottom: 0;
  transform: rotate(-45deg);
}

/* ═══════════════════════════════════════════
   HERO SECTION - Editorial com Fotografia
   ═══════════════════════════════════════════ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-white);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><defs><linearGradient id="grad" x1="0%" y1="0%" x2="100%" y2="100%"><stop offset="0%25" style="stop-color:%23f0f4f9;stop-opacity:1" /><stop offset="100%25" style="stop-color:%23e8eef7;stop-opacity:1" /></linearGradient></defs><rect width="1200" height="800" fill="url(%23grad)"/></svg>');
  background-size: cover;
  background-position: center;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  padding: var(--container-padding);
  text-align: left;
  width: 100%;
}

.hero-tag {
  display: inline-block;
  font-size: var(--text-caption);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: var(--spacing-lg);
  opacity: 0.8;
}

.hero h1 {
  font-size: var(--text-h1);
  line-height: 1.15;
  margin-bottom: var(--spacing-lg);
  color: var(--color-gray-dark);
  max-width: 90%;
}

.hero .hero-subtitle {
  font-size: var(--text-body-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-gray-medium);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

.hero .hero-description {
  font-size: var(--text-body);
  color: var(--color-gray-medium);
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  line-height: var(--line-height-relaxed);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  align-items: center;
}

@media (max-width: 640px) {
  .hero {
    min-height: clamp(60vh, 80vh, 100vh);
    padding-bottom: var(--spacing-xl);
  }

  .hero-content {
    padding: var(--container-padding-mobile);
  }

  .hero h1 {
    font-size: clamp(1.75rem, 6vw, 2.5rem);
    max-width: 100%;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  /* Scroll hint em mobile */
  .hero::after {
    content: '↓';
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    font-size: 1.5rem;
    color: var(--color-primary);
    opacity: 0.6;
  }
}

/* Scroll hint animation */
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-10px); }
}

@media (prefers-reduced-motion: reduce) {
  .hero::after {
    animation: none;
  }
}

/* ═══════════════════════════════════════════
   CONTAINER - Max-width e padding
   ═══════════════════════════════════════════ */

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

@media (max-width: 640px) {
  .container {
    padding: 0 var(--container-padding-mobile);
  }
}

/* ═══════════════════════════════════════════
   SECTIONS - Espaçamento Generoso
   ═══════════════════════════════════════════ */

section {
  padding: var(--spacing-3xl) 0;
}

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

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

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

section.section-primary h1,
section.section-primary h2,
section.section-primary h3,
section.section-primary h4,
section.section-primary h5,
section.section-primary h6 {
  color: var(--color-white);
}

section.section-primary p,
section.section-primary .text-gray {
  color: rgba(255, 255, 255, 0.85);
}

@media (max-width: 768px) {
  section {
    padding: var(--spacing-2xl) 0;
  }
}

/* Header de seção */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-header h2 {
  margin-bottom: var(--spacing-lg);
}

.section-header p {
  font-size: var(--text-body-lg);
  line-height: var(--line-height-relaxed);
}

@media (max-width: 768px) {
  .section-header {
    margin-bottom: var(--spacing-2xl);
  }

  .section-header h2 {
    margin-bottom: var(--spacing-md);
  }
}

/* ═══════════════════════════════════════════
   GRID LAYOUTS
   ═══════════════════════════════════════════ */

/* Grid 2 colunas responsivo */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-2xl);
  align-items: stretch;
}

@media (max-width: 768px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

/* Grid assimétrico 60/40 */
.grid-asymmetric {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

@media (max-width: 768px) {
  .grid-asymmetric {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

/* Grid assimétrico reverso 40/60 */
.grid-asymmetric-reverse {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

@media (max-width: 768px) {
  .grid-asymmetric-reverse {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .grid-asymmetric-reverse > :first-child {
    order: 2;
  }

  .grid-asymmetric-reverse > :last-child {
    order: 1;
  }
}

/* Grid 3 colunas responsivo */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
}

/* Grid 4 colunas responsivo */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
}

/* ═══════════════════════════════════════════
   FLEXBOX UTILITIES
   ═══════════════════════════════════════════ */

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

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

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

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

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

.gap-xl {
  gap: var(--spacing-xl);
}

/* ═══════════════════════════════════════════
   SPACING UTILITIES
   ═══════════════════════════════════════════ */

.mt-sm {
  margin-top: var(--spacing-sm);
}
.mt-md {
  margin-top: var(--spacing-md);
}
.mt-lg {
  margin-top: var(--spacing-lg);
}
.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}
.mb-md {
  margin-bottom: var(--spacing-md);
}
.mb-lg {
  margin-bottom: var(--spacing-lg);
}
.mb-xl {
  margin-bottom: var(--spacing-xl);
}

.px-sm {
  padding-left: var(--spacing-sm);
  padding-right: var(--spacing-sm);
}
.px-md {
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}
.px-lg {
  padding-left: var(--spacing-lg);
  padding-right: var(--spacing-lg);
}

.py-sm {
  padding-top: var(--spacing-sm);
  padding-bottom: var(--spacing-sm);
}
.py-md {
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
}
.py-lg {
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
}

/* ═══════════════════════════════════════════
   VISIBILITY
   ═══════════════════════════════════════════ */

.hidden {
  display: none;
}

.invisible {
  visibility: hidden;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

@media (max-width: 640px) {
  .hide-mobile {
    display: none;
  }
}

@media (min-width: 1024px) {
  .hide-desktop {
    display: none;
  }
}