/* ============================================
   BRATO CONSTRUTORA - Global Styles
   ============================================ */

/* Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-normal);
  line-height: var(--leading-relaxed);
  color: var(--color-gray-800);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

ul, ol {
  list-style: none;
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-gray-900);
}

h1 { font-size: var(--text-h1); }
h2 { font-size: var(--text-h2); }
h3 { font-size: var(--text-h3); }

p + p {
  margin-top: var(--space-4);
}

/* ============================================
   Layout Utilities
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

.section {
  padding-top: var(--section-py);
  padding-bottom: var(--section-py);
}

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

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-white);
}

.section--gray {
  background-color: var(--color-gray-100);
}

/* ============================================
   Section Header
   ============================================ */

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-12);
}

.section-header__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section-header__title {
  margin-bottom: var(--space-4);
}

.section-header__desc {
  color: var(--color-gray-600);
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
}

.section--dark .section-header__desc {
  color: var(--color-gray-400);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.875rem 2rem;
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius);
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-black);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn--outline:hover {
  background-color: var(--color-white);
  color: var(--color-black);
  transform: translateY(-2px);
}

.btn--outline-dark {
  background-color: transparent;
  color: var(--color-black);
  border-color: var(--color-black);
}

.btn--outline-dark:hover {
  background-color: var(--color-black);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--dark {
  background-color: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.btn--dark:hover {
  background-color: var(--color-dark-soft);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--sm {
  padding: 0.625rem 1.25rem;
  font-size: var(--text-sm);
}

.btn--lg {
  padding: 1rem 2.5rem;
  font-size: var(--text-lg);
}

.btn--icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: var(--radius-full);
}

/* ============================================
   Text Link with Arrow
   ============================================ */

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-semibold);
  color: var(--color-primary-dark);
  transition: gap var(--transition);
}

.link-arrow:hover {
  gap: var(--space-3);
}

.link-arrow svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition);
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* ============================================
   Cards
   ============================================ */

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.card__body {
  padding: var(--space-6);
}

.card__tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary-dark);
  background: var(--color-primary-light);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}

.card__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

.card__text {
  color: var(--color-gray-600);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

/* ============================================
   Grid Utilities
   ============================================ */

.grid {
  display: grid;
  gap: var(--space-8);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
}

/* ============================================
   Form Elements
   ============================================ */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-base);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--radius);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.2);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ============================================
   Page Hero (Internal Pages)
   ============================================ */

.page-hero {
  background-color: var(--color-black);
  color: var(--color-white);
  padding: calc(var(--header-h) + var(--space-16)) 0 var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.7) 100%);
  z-index: 1;
}

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

.page-hero__title {
  color: var(--color-white);
  font-size: var(--text-h1);
  margin-bottom: var(--space-4);
}

.page-hero__desc {
  color: var(--color-gray-400);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-6);
}

.breadcrumb a {
  color: var(--color-gray-400);
  transition: color var(--transition);
}

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

.breadcrumb__sep {
  color: var(--color-gray-600);
}

/* ============================================
   Accessibility
   ============================================ */

.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;
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ============================================
   Scroll margin for anchors
   ============================================ */

[id] {
  scroll-margin-top: var(--header-h);
}

/* ============================================
   Additional Responsive
   ============================================ */

@media (max-width: 768px) {
  .section-header {
    margin-bottom: var(--space-8);
  }

  .page-hero {
    padding: calc(var(--header-h) + var(--space-10)) 0 var(--space-10);
  }

  .page-hero__desc {
    font-size: var(--text-base);
  }
}

@media (max-width: 480px) {
  .section {
    padding-top: clamp(2rem, 6vw, 3rem);
    padding-bottom: clamp(2rem, 6vw, 3rem);
  }

  .section-header {
    margin-bottom: var(--space-6);
  }

  .btn {
    padding: 0.75rem 1.5rem;
    font-size: var(--text-sm);
  }

  .btn--lg {
    padding: 0.875rem 2rem;
    font-size: var(--text-base);
  }

  .card__body {
    padding: var(--space-4);
  }

  .card__title {
    font-size: var(--text-lg);
  }
}