/* ==========================================================================
   Tektónica - Soluciones Industriales y Mineras
   Design System & Custom CSS Framework
   ========================================================================== */

:root {
  /* Brand Palette */
  --tek-orange: #E96A1A;
  --tek-orange-hover: #D1590F;
  --tek-orange-glow: rgba(233, 106, 26, 0.15);

  --tek-gray-dark: #0F172A;
  /* Slate 900 */
  --tek-gray-darker: #F8FAFC;
  /* Slate 50 (Fondo alterno de secciones) */
  --tek-gray-deep: #FFFFFF;
  /* Blanco puro (Fondo base) */
  --tek-gray-card: #FFFFFF;
  /* Blanco para tarjetas */
  --tek-gray-border: #E2E8F0;
  /* Slate 200 para bordes */
  --tek-gray-light: #F1F5F9;
  /* Slate 100 para detalles */
  --tek-text-muted: #64748B;
  /* Slate 500 para textos secundarios/silenciados */

  --tek-yellow: #F2B223;
  --tek-yellow-hover: #D99B14;
  --tek-yellow-glow: rgba(242, 178, 35, 0.2);

  /* Typography & Layout */
  --tek-font-main: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --tek-transition-fast: all 0.25s ease-in-out;
  --tek-transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --tek-radius-sm: 8px;
  --tek-radius-md: 14px;
  --tek-radius-lg: 20px;
}

/* Global Reset & Typography */
body {
  font-family: var(--tek-font-main);
  background-color: var(--tek-gray-deep);
  color: #334155;
  /* Slate 700 para excelente contraste y legibilidad */
  line-height: 1.6;
  overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--tek-gray-light);
}

::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  /* Slate 300 */
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--tek-orange);
}

/* Base Utility Classes */
.bg-light-deep {
  background-color: var(--tek-gray-light) !important;
}

.bg-light-card {
  background-color: var(--tek-gray-card) !important;
}

.bg-sand {
  background-color: #F5E9D0 !important;
}

/* sand tone */
.bg-lightgray {
  background-color: #E2E5E9 !important;
}

/* soft gray */
.bg-light-section {
  background-color: var(--tek-gray-darker) !important;
}

.text-orange {
  color: var(--tek-orange) !important;
}

.text-yellow {
  color: var(--tek-yellow) !important;
}

.text-gray-muted {
  color: var(--tek-text-muted) !important;
}

/* Section Dividers & Headers */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(242, 178, 35, 0.1);
  border: 1px solid var(--tek-yellow);
  color: var(--tek-yellow);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 0.35rem 1rem;
  border-radius: 50px;
  margin-bottom: 1rem;
}

.section-title {
  font-weight: 800;
  font-size: 2.4rem;
  letter-spacing: -0.5px;
  color: var(--tek-gray-dark);
  margin-bottom: 1rem;
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.85rem;
  }
}

.title-underline {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--tek-orange), var(--tek-yellow));
  border-radius: 2px;
  margin: 0 auto 1.5rem auto;
}

.title-underline.start {
  margin: 0 0 1.5rem 0;
}

/* Buttons System */
.btn-tek-orange {
  background-color: var(--tek-orange);
  color: #FFFFFF;
  font-weight: 600;
  padding: 0.8rem 1.8rem;
  border-radius: var(--tek-radius-sm);
  border: 2px solid var(--tek-orange);
  transition: var(--tek-transition-smooth);
  box-shadow: 0 4px 20px var(--tek-orange-glow);
}

.btn-tek-orange:hover,
.btn-tek-orange:focus {
  background-color: var(--tek-orange-hover);
  border-color: var(--tek-orange-hover);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--tek-orange-glow);
}

.btn-tek-outline-yellow {
  background: transparent;
  color: #C28200;
  /* Color ámbar legible en fondos claros */
  font-weight: 600;
  padding: 0.8rem 1.8rem;
  border-radius: var(--tek-radius-sm);
  border: 2px solid var(--tek-yellow);
  transition: var(--tek-transition-smooth);
}

.btn-tek-outline-yellow:hover,
.btn-tek-outline-yellow:focus {
  background-color: var(--tek-yellow);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--tek-yellow-glow);
}

/* Navbar Component */
.navbar-tektonica {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--tek-gray-border);
  padding: 0.8rem 0;
  transition: var(--tek-transition-fast);
}

.navbar-brand img {
  height: 48px;
  width: auto;
  transition: var(--tek-transition-fast);
}

.navbar-brand img:hover {
  transform: scale(1.03);
}

.nav-link {
  color: #334155 !important;
  font-weight: 500;
  font-size: 0.98rem;
  margin: 0 0.4rem;
  padding: 0.5rem 0.8rem !important;
  border-radius: 6px;
  transition: var(--tek-transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--tek-orange) !important;
  background: rgba(233, 106, 26, 0.08);
}

.navbar-toggler {
  border: 1px solid var(--tek-gray-border);
  padding: 0.5rem 0.75rem;
}

.navbar-toggler-icon {
  filter: none;
  /* Mantener icono oscuro por defecto de Bootstrap */
}

/* Hero Section */
.hero-section {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(20, 21, 24, 0.2) 0%, rgba(30, 31, 36, 0.8) 100%),
    url('../img/projects/6.jpg') center/cover no-repeat;
  border-bottom: 1px solid var(--tek-gray-border);
  padding-top: 100px;
  padding-bottom: 60px;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 80% 20%, rgba(233, 106, 26, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.hero-title {
  font-size: 3.4rem;
  font-weight: 800;
  line-height: 1.15;
  color: #FFFFFF;
  letter-spacing: -1px;
}

.hero-title span {
  background: linear-gradient(90deg, var(--tek-orange), var(--tek-yellow));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

@media (max-width: 768px) {
  .hero-section {
    min-height: auto;
    padding-top: 120px;
  }

  .hero-title {
    font-size: 2.2rem;
  }
}

.hero-badge-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(37, 40, 48, 0.7);
  border: 1px solid var(--tek-gray-border);
  padding: 0.6rem 1rem;
  border-radius: var(--tek-radius-sm);
  font-size: 0.9rem;
  color: #E2E8F0;
}

.hero-badge-item i {
  color: var(--tek-yellow);
  font-size: 1.2rem;
}

/* Areas / Services Section (3 Key Areas) */
.service-card {
  background: var(--tek-gray-card);
  border: 1px solid var(--tek-gray-border);
  border-radius: var(--tek-radius-md);
  padding: 2rem;
  height: 100%;
  position: relative;
  overflow: hidden;
  transition: var(--tek-transition-smooth);
  display: flex;
  flex-direction: column;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--tek-gray-border);
  transition: var(--tek-transition-fast);
}

.service-card:hover {
  transform: translateY(-8px);
  border-color: rgba(233, 106, 26, 0.4);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
}

.service-card:hover::before {
  background: linear-gradient(90deg, var(--tek-orange), var(--tek-yellow));
}

.service-icon-box {
  width: 64px;
  height: 64px;
  border-radius: var(--tek-radius-sm);
  background: rgba(233, 106, 26, 0.12);
  border: 1px solid rgba(233, 106, 26, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tek-orange);
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
  transition: var(--tek-transition-fast);
}

.service-card:hover .service-icon-box {
  background: var(--tek-orange);
  color: #FFFFFF;
  box-shadow: 0 0 20px var(--tek-orange-glow);
}

.service-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--tek-gray-dark);
  margin-bottom: 0.8rem;
}

.service-img-preview {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: var(--tek-radius-sm);
  margin-bottom: 1.2rem;
  border: 1px solid var(--tek-gray-border);
}

.service-list-items {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0 0;
}

.service-list-items li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.92rem;
  color: var(--tek-text-muted); /* fix: was #CBD5E1 (invisible on white bg) */
}

.service-list-items li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--tek-yellow);
  font-weight: bold;
}

/* Portfolio / Obras Realizadas Section */
.portfolio-filter-btn {
  background: var(--tek-gray-card);
  border: 1px solid var(--tek-gray-border);
  color: #334155; /* fix: was #CBD5E1 (invisible on white bg) */
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.55rem 1.2rem;
  border-radius: 50px;
  margin: 0.25rem;
  transition: var(--tek-transition-fast);
}

.portfolio-filter-btn:hover,
.portfolio-filter-btn.active {
  background: var(--tek-orange);
  border-color: var(--tek-orange);
  color: #FFFFFF;
  box-shadow: 0 4px 15px var(--tek-orange-glow);
}

.portfolio-card {
  background: var(--tek-gray-card);
  border: 1px solid var(--tek-gray-border);
  border-radius: var(--tek-radius-md);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: var(--tek-transition-smooth);
}

.portfolio-card:hover {
  transform: translateY(-6px);
  border-color: var(--tek-orange);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
}

.portfolio-img-wrapper {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--tek-gray-darker);
}

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

.portfolio-card:hover .portfolio-img {
  transform: scale(1.06);
}

.portfolio-client-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(20, 21, 24, 0.9);
  backdrop-filter: blur(6px);
  border: 1px solid var(--tek-gray-border);
  padding: 4px 10px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 2;
}

.portfolio-client-badge img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
}

.portfolio-client-badge span {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--tek-yellow);
}

.portfolio-category-pill {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(233, 106, 26, 0.9);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.portfolio-body {
  padding: 1.5rem;
  background: #1e293b; /* Dark body so white title text is visible */
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.portfolio-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.6rem;
  line-height: 1.35;
}

.portfolio-desc {
  font-size: 0.9rem;
  color: var(--tek-text-muted);
  margin-bottom: 1.2rem;
  flex-grow: 1;
}

.btn-portfolio-view {
  background: transparent;
  border: 1px solid var(--tek-gray-border);
  color: #E2E8F0;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: var(--tek-radius-sm);
  width: 100%;
  text-align: center;
  transition: var(--tek-transition-fast);
}

.btn-portfolio-view:hover {
  background: var(--tek-orange);
  border-color: var(--tek-orange);
  color: #FFFFFF;
}

/* Stats / Metrics Counters */
.stat-box {
  background: #1e293b; /* Dark so light-colored text is visible */
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--tek-radius-md);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: var(--tek-transition-fast);
}

.stat-box:hover {
  border-color: var(--tek-yellow);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--tek-orange);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.95rem;
  color: #CBD5E1;
  font-weight: 500;
}

/* Contact & Team Section */
.contact-card {
  background: #1e293b; /* Dark so white heading text is visible */
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--tek-radius-md);
  padding: 2rem;
}

.form-control-tek {
  background: rgba(15, 23, 42, 0.55); /* Dark input bg for dark modal */
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #E2E8F0 !important;
  border-radius: var(--tek-radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  transition: var(--tek-transition-fast);
}

.form-control-tek:focus {
  background: rgba(15, 23, 42, 0.75);
  border-color: var(--tek-orange);
  box-shadow: 0 0 0 3px var(--tek-orange-glow);
  outline: none;
  color: #E2E8F0 !important;
}

.form-control-tek::placeholder {
  color: #64748B;
}

.executive-card {
  background: var(--tek-gray-card);
  border: 1px solid var(--tek-gray-border);
  border-radius: var(--tek-radius-md);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1rem;
  transition: var(--tek-transition-fast);
}

.executive-card:hover {
  border-color: var(--tek-orange);
  transform: translateY(-3px);
}

.executive-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--tek-orange);
}

.executive-info h5 {
  font-weight: 700;
  margin-bottom: 0.2rem;
  color: #FFFFFF;
}

.executive-info span {
  color: var(--tek-yellow);
  font-size: 0.85rem;
  font-weight: 600;
  display: block;
  margin-bottom: 0.5rem;
}

.btn-whatsapp-direct {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #25D366;
  color: #FFFFFF;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  text-decoration: none;
  transition: var(--tek-transition-fast);
}

.btn-whatsapp-direct:hover {
  background: #1DA851;
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
}

/* Footer Section */
.footer-tektonica {
  background: var(--tek-gray-deep);
  border-top: 1px solid var(--tek-gray-border);
  padding: 3rem 0 1.5rem 0;
  color: var(--tek-text-muted);
  font-size: 0.9rem;
}

/* Modal Lightbox Styling */
.modal-content-tek {
  background: #1e293b; /* Dark modal so white text/forms are readable */
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  border-radius: var(--tek-radius-md);
}

.modal-header-tek {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.2rem 1.5rem;
}

.modal-content-tek .modal-footer {
  background: #1e293b;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-body-tek img {
  width: 100%;
  max-height: 450px;
  object-fit: cover;
  border-radius: var(--tek-radius-sm);
  margin-bottom: 1rem;
  border: 1px solid var(--tek-gray-border);
}

/* Responsive Fixes */
@media (max-width: 576px) {
  .portfolio-img-wrapper {
    height: 180px;
  }

  .executive-card {
    flex-direction: column;
    text-align: center;
  }

  .service-card {
    padding: 1.5rem;
  }
}

/* ==========================================================================
   Missing Utility Classes
   ========================================================================== */

/* Dark card (used in nosotros overlay & project modal) */
.bg-dark-card {
  background-color: rgba(15, 23, 42, 0.9) !important;
}

/* Hover orange (footer links) */
.hover-orange:hover {
  color: var(--tek-orange) !important;
}

/* ==========================================================================
   CAPTCHA de Selección de Íconos
   ========================================================================== */

.captcha-container {
  margin-top: 0.25rem;
}

.captcha-box {
  background: rgba(15, 23, 42, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--tek-radius-sm);
  padding: 1.2rem 1.2rem 1rem;
}

.captcha-label {
  color: #94a3b8;
  font-size: 0.88rem;
  font-weight: 500;
  line-height: 1.5;
}

.captcha-label strong {
  color: var(--tek-yellow);
  font-weight: 700;
}

.captcha-icons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.55rem;
  margin-bottom: 0.75rem;
}

.captcha-icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--tek-radius-sm);
  color: #94a3b8;
  font-size: 1.75rem;
  cursor: pointer;
  transition: var(--tek-transition-fast);
  user-select: none;
}

.captcha-icon-btn:hover {
  border-color: var(--tek-orange);
  color: var(--tek-orange);
  background: var(--tek-orange-glow);
  transform: scale(1.06);
}

.captcha-icon-btn.selected {
  border-color: var(--tek-orange);
  background: rgba(233, 106, 26, 0.2);
  color: var(--tek-orange);
  box-shadow: 0 0 0 3px rgba(233, 106, 26, 0.25);
}

.captcha-feedback {
  font-size: 0.82rem;
  font-weight: 600;
  min-height: 1.3rem;
  margin-bottom: 0.5rem;
  color: transparent;
  transition: color 0.2s ease;
}

.captcha-feedback.error {
  color: #f87171;
}

.captcha-feedback.success {
  color: #4ade80;
}

.captcha-refresh-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #64748b;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.3rem 0.85rem;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--tek-transition-fast);
}

.captcha-refresh-btn:hover {
  border-color: var(--tek-orange);
  color: var(--tek-orange);
}