/* ============================================
   YEPNON SA DE CV - Custom Styles
   Tema: Construcción profesional
   Colores: Naranja #c65d00, Ámbar/Dorado #d4a017, Fondo cálido
   Fuentes: Inter + Outfit
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

/* --- CSS Variables --- */
:root {
  --primary: #c65d00;
  --primary-light: #e07820;
  --primary-dark: #a04d00;
  --accent: #d4a017;
  --accent-light: #f0c040;
  --foreground: #2d1f0e;
  --foreground-light: #5c4a35;
  --muted: #8a7a6a;
  --background: #f7f3ee;
  --secondary: #f0ebe4;
  --card: #ffffff;
  --border: #e5ddd3;
  --dark-bg: #1a1a1a;
  --dark-overlay: #2d1a00;
  --font-sans: 'Inter', sans-serif;
  --font-serif: 'Outfit', sans-serif;
  --radius: 0.75rem;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  color: var(--foreground);
  background-color: var(--background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.2;
}

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

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

/* --- Utility Classes --- */
.text-primary { color: var(--primary) !important; }
.text-accent { color: var(--accent) !important; }
.text-muted { color: var(--muted) !important; }
.text-white-75 { color: rgba(255,255,255,0.75); }
.text-white-65 { color: rgba(255,255,255,0.65); }
.text-white-50 { color: rgba(255,255,255,0.50); }
.text-white-45 { color: rgba(255,255,255,0.45); }
.bg-primary { background-color: var(--primary) !important; }
.bg-accent { background-color: var(--accent) !important; }
.bg-background { background-color: var(--background); }
.bg-secondary { background-color: var(--secondary); }
.bg-card { background-color: var(--card); }
.bg-dark { background-color: var(--dark-bg); }
.font-serif { font-family: var(--font-serif) !important; }
.tracking-widest { letter-spacing: 0.15em; }
.tracking-tight { letter-spacing: -0.02em; }

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--primary);
}

.section-title {
  font-family: var(--font-serif);
  font-weight: 700;
  color: var(--foreground);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* --- Navbar --- */
.navbar-custom {
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
  transition: var(--transition);
  z-index: 1050;
}

.navbar-custom .navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-logo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--primary);
}

.brand-subtitle {
  font-size: 0.625rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.navbar-custom .nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.5rem 1rem !important;
  transition: var(--transition);
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
  color: var(--primary);
}

.btn-cta-nav {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-cta-nav:hover {
  background: var(--primary-dark);
  color: #fff;
}

.navbar-toggler {
  border: none;
  padding: 0.25rem;
}

.navbar-toggler:focus {
  box-shadow: none;
}

/* Offcanvas */
.offcanvas-custom {
  background: var(--card);
  border-left: 1px solid var(--border);
}

.offcanvas-custom .nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--muted);
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  transition: var(--transition);
}

.offcanvas-custom .nav-link:hover {
  background: var(--secondary);
  color: var(--primary);
}

/* --- Hero Section --- */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

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

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

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,26,0.90), rgba(45,26,0,0.85), rgba(26,26,26,0.90));
}

.hero-content {
  position: relative;
  z-index: 10;
  padding-top: 8rem;
  padding-bottom: 4rem;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid rgba(198,93,0,0.4);
  background: rgba(198,93,0,0.2);
  border-radius: 50px;
  padding: 0.375rem 1rem;
  margin-bottom: 1.5rem;
}

.hero-badge i {
  color: var(--accent);
  font-size: 0.875rem;
}

.hero-badge span {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.9);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: #fff;
  max-width: 700px;
}

.hero-title .highlight {
  color: var(--primary);
}

.hero-description {
  margin-top: 1.5rem;
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
}

.hero-buttons {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-hero-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.btn-hero-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
}

.btn-hero-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 500;
  transition: var(--transition);
}

.btn-hero-outline:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}

.hero-stats {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.15);
  max-width: 500px;
}

.hero-stat-item .stat-icon {
  font-size: 1rem;
  margin-right: 0.5rem;
}

.hero-stat-item .stat-number {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
}

.hero-stat-item .stat-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
  margin-top: 0.25rem;
}

/* --- Trust Bar --- */
.trust-bar {
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 3rem 0;
}

.trust-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.trust-item i {
  font-size: 1.5rem;
  color: var(--primary);
}

.trust-item .trust-stat {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--foreground);
  margin-top: 0.75rem;
}

.trust-item .trust-label {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

/* --- Services Section --- */
.services-section {
  background: var(--background);
  padding: 6rem 0;
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
  height: 100%;
}

.service-card:hover,
.service-card.active {
  border-color: rgba(198,93,0,0.4);
  box-shadow: var(--shadow-md);
}

.service-card.active {
  border-color: var(--primary);
  background: rgba(198,93,0,0.03);
  box-shadow: 0 8px 24px rgba(198,93,0,0.1);
}

.service-card-image {
  position: relative;
  height: 140px;
  overflow: hidden;
}

.service-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.service-card:hover .service-card-image img {
  transform: scale(1.1);
}

.service-card-image .image-overlay {
  position: absolute;
  inset: 0;
  background: rgba(45,31,14,0.2);
  transition: var(--transition);
}

.service-card:hover .service-card-image .image-overlay,
.service-card.active .service-card-image .image-overlay {
  background: rgba(198,93,0,0.3);
}

.service-card-image .service-icon-badge {
  position: absolute;
  bottom: 0.75rem;
  left: 0.75rem;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background: var(--card);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  font-size: 1.125rem;
}

.service-card:hover .service-icon-badge,
.service-card.active .service-icon-badge {
  background: var(--primary);
  color: #fff;
}

.service-card-body {
  flex: 1;
  padding: 1rem;
}

.service-card-body h3 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--foreground);
  font-family: var(--font-sans);
}

.service-card-body p {
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--muted);
  margin-top: 0.5rem;
}

.service-card .accent-bar {
  height: 3px;
  width: 100%;
  background: transparent;
  transition: var(--transition);
}

.service-card:hover .accent-bar {
  background: rgba(212,160,23,0.5);
}

.service-card.active .accent-bar {
  background: var(--accent);
}

/* Mobile: collapse description */
@media (max-width: 575.98px) {
  .service-card-body p {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: all 0.3s ease;
  }
  .service-card.active .service-card-body p {
    max-height: 200px;
    opacity: 1;
  }
}

/* --- About Section --- */
.about-section {
  background: var(--secondary);
  padding: 6rem 0;
}

.about-image-wrapper {
  position: relative;
  border-radius: 1rem;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.about-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-image-wrapper .image-tint {
  position: absolute;
  inset: 0;
  background: rgba(198,93,0,0.15);
}

.about-text p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--muted);
}

.about-text p strong {
  color: var(--foreground);
}

.values-title {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--foreground);
}

.value-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.value-item i {
  color: var(--primary);
  font-size: 1rem;
  flex-shrink: 0;
}

.value-item span {
  font-size: 0.875rem;
  color: var(--muted);
}

/* Mission & Vision Cards */
.mv-card {
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 2rem 2.5rem;
  height: 100%;
}

.mv-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  font-size: 1.25rem;
  color: #fff;
}

.mv-icon.primary { background: var(--primary); }
.mv-icon.accent { background: var(--accent); }

.mv-card h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--foreground);
  margin-top: 1.5rem;
}

.mv-card p {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--muted);
  margin-top: 1rem;
}

/* --- Projects Section --- */
.projects-section {
  background: var(--background);
  padding: 6rem 0;
}

.project-card {
  position: relative;
  overflow: hidden;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: var(--card);
  transition: var(--transition);
  height: 100%;
}

.project-card:hover {
  box-shadow: var(--shadow-md);
}

.project-card-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-card-image img {
  transform: scale(1.05);
}

.project-card-image .project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(45,31,14,0.2);
  transition: opacity 0.3s ease;
}

.project-card:hover .project-card-image .project-overlay {
  opacity: 0;
}

.project-category-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 50px;
}

.project-card-body {
  padding: 1.5rem;
}

.project-card-body .project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.project-card-body h3 {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--foreground);
}

.project-card-body .arrow-icon {
  color: var(--muted);
  font-size: 1.125rem;
  flex-shrink: 0;
  transition: var(--transition);
}

.project-card:hover .project-card-body .arrow-icon {
  color: var(--primary);
  transform: translate(2px, -2px);
}

.project-card-body p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* --- CTA Banner --- */
.cta-banner {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1a1a1a, #2d1a00, #1a1a1a);
  padding: 5rem 0;
}

.cta-banner .decorative-circle {
  position: absolute;
  border-radius: 50%;
  border-style: solid;
  opacity: 0.1;
}

.cta-banner .circle-1 {
  width: 320px;
  height: 320px;
  border-width: 40px;
  border-color: rgba(198,93,0,0.3);
  top: -80px;
  left: -80px;
}

.cta-banner .circle-2 {
  width: 240px;
  height: 240px;
  border-width: 30px;
  border-color: rgba(212,160,23,0.3);
  bottom: -40px;
  right: -40px;
}

.cta-title {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.cta-description {
  font-size: 1rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.65);
  max-width: 560px;
  margin: 1rem auto 0;
}

.cta-buttons {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.btn-cta-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.btn-cta-primary:hover {
  background: var(--primary-dark);
  color: #fff;
}

.btn-cta-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition);
}

.btn-cta-outline:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}

/* --- Contact Section --- */
.contact-section {
  background: var(--secondary);
  padding: 6rem 0;
}

.contact-form-card {
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 1.5rem 2rem;
}

.contact-form-card .form-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--foreground);
  margin-bottom: 0.375rem;
}

.contact-form-card .form-control,
.contact-form-card .form-select {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  color: var(--foreground);
  background: var(--card);
  transition: var(--transition);
}

.contact-form-card .form-control:focus,
.contact-form-card .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(198,93,0,0.1);
}

.contact-form-card .form-control::placeholder {
  color: var(--muted);
}

.btn-submit {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition);
  width: 100%;
}

.btn-submit:hover {
  background: var(--primary-dark);
  color: #fff;
}

.success-message {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
}

.success-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(198,93,0,0.1);
  color: var(--primary);
  font-size: 2rem;
}

.success-message h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--foreground);
  margin-top: 1rem;
}

.success-message p {
  font-size: 0.875rem;
  color: var(--muted);
  margin-top: 0.5rem;
}

/* Contact Info Cards */
.contact-info-card {
  display: flex;
  gap: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  padding: 1.25rem;
}

.contact-info-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.5rem;
  background: rgba(212,160,23,0.15);
  color: var(--primary);
  font-size: 1.125rem;
  flex-shrink: 0;
}

.contact-info-card .info-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.contact-info-card .info-value {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--foreground);
  margin-top: 0.25rem;
}

.map-wrapper {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--card);
  overflow: hidden;
  flex: 1;
  min-height: 200px;
}

.map-wrapper iframe {
  width: 100%;
  height: 100%;
  min-height: 200px;
  border: none;
}

/* --- Footer --- */
.footer-section {
  background: var(--dark-bg);
  color: #fff;
  padding: 4rem 0 0;
  border-top: 1px solid var(--border);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-logo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: contain;
}

.footer-brand-name {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}

.footer-brand-sub {
  font-size: 0.625rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.6);
}

.footer-description {
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,0.65);
  margin-top: 1rem;
  max-width: 380px;
}

.footer-heading {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary);
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.625rem;
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  transition: var(--transition);
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  margin-top: 3rem;
  padding: 2rem 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-bottom p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.45);
}

/* --- Scroll Animations --- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 991.98px) {
  .hero-title {
    font-size: 2.5rem;
  }
  .cta-title {
    font-size: 2rem;
  }
}

@media (max-width: 767.98px) {
  .hero-title {
    font-size: 2rem;
  }
  .hero-description {
    font-size: 1rem;
  }
  .hero-stat-item .stat-number {
    font-size: 1.375rem;
  }
  .section-title {
    font-size: 1.75rem !important;
  }
  .cta-title {
    font-size: 1.75rem;
  }
  .mv-card {
    padding: 1.5rem;
  }
}

@media (max-width: 575.98px) {
  .hero-title {
    font-size: 1.75rem;
  }
  .hero-content {
    padding-top: 6rem;
  }
}