/* ==========================================================================
   WL Fundações e Escavações — Design System & Styles
   LP 03: Limpeza mecanizada e nivelamento de terreno
   ========================================================================== */

:root {
  --font-display: 'Barlow Condensed', sans-serif, system-ui;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --bg-main: #0c1017;
  --bg-surface: #121824;
  --bg-card: #182030;
  --bg-card-hover: #1f2a3f;
  --bg-secondary: #0f1520;
  
  --border-color: #26334d;
  --border-subtle: #1c2639;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --brand-blue: #2563eb;
  --brand-blue-hover: #1d4ed8;
  --brand-blue-light: #60a5fa;
  --brand-whatsapp: #25D366;
  --brand-whatsapp-hover: #20bd5a;
  
  --container-max: 1200px;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-sans);
}

body {
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography Helpers */
.font-display {
  font-family: var(--font-display);
}

.text-accent {
  color: var(--brand-blue-light);
}

.text-gradient {
  background: linear-gradient(135deg, #ffffff 30%, var(--brand-blue-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(12, 16, 23, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.nav-desktop {
  display: none;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  font-weight: 600;
}

.nav-link:hover {
  color: var(--brand-blue-light);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.9rem 1.8rem;
  border-radius: 4px;
  transition: transform 0.2s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
  text-align: center;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background-color: var(--brand-blue);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  background-color: var(--brand-blue-hover);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.btn-whatsapp {
  background-color: var(--brand-whatsapp);
  color: #0b2212;
  font-weight: 800;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
  background-color: var(--brand-whatsapp-hover);
  box-shadow: 0 6px 22px rgba(37, 211, 102, 0.45);
}

.btn-outline {
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--brand-blue-light);
  color: var(--brand-blue-light);
  background: rgba(37, 99, 235, 0.08);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-height));
  display: flex;
  align-items: center;
  padding: 4.5rem 0 5rem;
  background-color: var(--bg-main);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(12, 16, 23, 0.94) 0%, rgba(12, 16, 23, 0.82) 40%, rgba(12, 16, 23, 0.98) 100%);
}

.hero-overlay-horizontal {
  position: absolute;
  inset: 0;
  z-index: 3;
  background: linear-gradient(90deg, rgba(12, 16, 23, 0.97) 0%, rgba(12, 16, 23, 0.75) 55%, rgba(12, 16, 23, 0.35) 100%);
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border-left: 3px solid var(--brand-blue);
  padding-left: 0.75rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--brand-blue-light);
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 5.5vw, 4.8rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 0.96;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 2.25rem;
  max-width: 680px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Highlights Bar */
.highlights-bar {
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-surface);
  position: relative;
  z-index: 10;
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  divide-x: 1px solid var(--border-color);
}

.highlight-item {
  padding: 1.5rem 1rem;
  text-align: center;
}

.highlight-num {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  font-weight: 900;
  color: var(--brand-blue-light);
  line-height: 1;
}

.highlight-label {
  margin-top: 0.4rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

/* Sections */
.section {
  padding: 5rem 0;
  position: relative;
}

.section-secondary {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  margin-bottom: 3.5rem;
  max-width: 760px;
}

.section-eyebrow {
  font-family: var(--font-display);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.35em;
  color: var(--brand-blue-light);
  font-weight: 700;
  display: block;
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.section-desc {
  margin-top: 1rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 2rem;
  transition: border-color 0.25s ease, transform 0.25s ease;
  position: relative;
}

.card:hover {
  border-color: var(--brand-blue);
  transform: translateY(-3px);
}

.card-num {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--brand-blue-light);
  margin-bottom: 0.75rem;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

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

/* Scope & Notice Box */
.notice-box {
  background: rgba(37, 99, 235, 0.08);
  border-left: 4px solid var(--brand-blue);
  padding: 1.5rem 1.75rem;
  border-radius: 0 6px 6px 0;
  margin: 2.5rem 0;
}

.notice-box-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.notice-box-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Process Timeline / Steps */
.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 2rem;
  border-radius: 6px;
  position: relative;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.step-badge {
  background: var(--brand-blue);
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.2rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.step-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #ffffff;
}

/* Gallery Grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-item:hover .gallery-img {
  transform: scale(1.06);
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.5rem 1rem 0.75rem;
  background: linear-gradient(0deg, rgba(12, 16, 23, 0.95) 0%, transparent 100%);
  font-size: 0.85rem;
  color: #ffffff;
  font-weight: 500;
}

/* Coverage Box */
.coverage-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 2.5rem;
}

.cities-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

.city-tag {
  background: rgba(37, 99, 235, 0.15);
  border: 1px solid rgba(96, 165, 250, 0.3);
  color: var(--brand-blue-light);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.exclusion-notice {
  font-size: 0.9rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  padding-top: 1.25rem;
  margin-top: 1.25rem;
}

/* FAQ Accordion */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.faq-item[open] {
  border-color: var(--brand-blue);
}

.faq-question {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #ffffff;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
}

.faq-question::-webkit-details-marker {
  display: none;
}

.faq-question::after {
  content: "+";
  font-size: 1.5rem;
  color: var(--brand-blue-light);
  transition: transform 0.2s ease;
}

.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 1.5rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, #131c2d 0%, #0c1017 100%);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 3.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 1rem;
}

.cta-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 2rem;
}

/* Footer */
.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 1rem;
  font-size: 0.9rem;
  max-width: 380px;
}

.footer-heading {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--brand-blue-light);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background-color: var(--brand-whatsapp);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: 50px;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.whatsapp-float:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.55);
}

.whatsapp-float svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

/* Cookie / Privacy Consent Banner */
.privacy-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(18, 24, 36, 0.96);
  border-top: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  padding: 1.25rem 0;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
  display: none;
}

.privacy-banner.show {
  display: block;
}

.privacy-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: flex-start;
}

.privacy-text {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.privacy-actions {
  display: flex;
  gap: 0.75rem;
}

/* Privacy Modal */
.privacy-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.privacy-modal.open {
  display: flex;
}

.privacy-modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  max-width: 650px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
}

.privacy-modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-size: 1.5rem;
  color: var(--text-muted);
}

/* Media Queries */
@media (min-width: 640px) {
  .highlights-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  .privacy-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-top {
    grid-template-columns: 2fr 1fr 1fr;
  }
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

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

@media (max-width: 640px) {
  .whatsapp-float span {
    display: none;
  }
  .whatsapp-float {
    padding: 0.85rem;
    border-radius: 50%;
    bottom: 20px;
    right: 20px;
  }
}