/* ============================================
   LUHER SOLUTIONS LLC - Enhanced Soft UI Design
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --primary: #0c1821;
  --primary-light: #162a3e;
  --primary-dark: #060e15;
  --gold: #c9a227;
  --gold-light: #dbb94a;
  --gold-dark: #a88a1e;
  --white: #ffffff;
  --light: #f5f6fa;
  --light-2: #e8eaf0;
  --gray: #8b8fa3;
  --gray-dark: #5a5e72;
  --dark: #2d3142;
  --shadow-soft: 8px 8px 16px rgba(12, 24, 33, 0.08), -8px -8px 16px rgba(255, 255, 255, 0.9);
  --shadow-soft-hover: 12px 12px 24px rgba(12, 24, 33, 0.12), -12px -12px 24px rgba(255, 255, 255, 0.95);
  --shadow-card: 0 4px 20px rgba(12, 24, 33, 0.06), 0 1px 3px rgba(12, 24, 33, 0.04);
  --shadow-card-hover: 0 8px 40px rgba(12, 24, 33, 0.1), 0 2px 6px rgba(12, 24, 33, 0.06);
  --shadow-nav: 0 2px 20px rgba(12, 24, 33, 0.08);
  --shadow-glow: 0 0 30px rgba(201, 162, 39, 0.15);
  --radius-sm: 12px;
  --radius-md: 20px;
  --radius-lg: 30px;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-fast: all 0.25s ease;
}

/* ---------- Reset & Base ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--dark);
  background-color: var(--light);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary);
}

a { text-decoration: none; color: var(--gold); transition: var(--transition-fast); }
a:hover { color: var(--gold-dark); }
img { max-width: 100%; height: auto; }

/* ---------- Preloader ---------- */
#preloader {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: var(--white); display: flex; align-items: center; justify-content: center;
  z-index: 99999; transition: opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; }
.loader-logo { width: 100px; animation: pulse-loader 1.5s ease-in-out infinite; }
@keyframes pulse-loader {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.08); opacity: 1; }
}

/* ---------- Navbar ---------- */
.navbar {
  padding: 15px 0; transition: var(--transition);
  background: transparent; z-index: 1000;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-nav); padding: 10px 0;
}

.logo-navbar {
  height: 55px; transition: var(--transition-fast);
}
.logo-dark { display: none; }
.navbar.scrolled .logo-navbar { height: 45px; }
.navbar.scrolled .logo-navbar:not(.logo-dark) { opacity: 0; position: absolute; pointer-events: none; }
.navbar.scrolled .logo-dark { display: inline-block; }

.navbar .nav-link {
  color: var(--white) !important; font-weight: 500; font-size: 0.92rem;
  padding: 8px 18px !important; border-radius: var(--radius-sm);
  transition: var(--transition); letter-spacing: 0.3px; position: relative;
}
.navbar.scrolled .nav-link { color: var(--dark) !important; }
.navbar .nav-link:hover, .navbar .nav-link.active {
  color: var(--gold) !important; background: rgba(201, 162, 39, 0.08);
}
.navbar .nav-link::after {
  content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
  width: 0; height: 2px; background: var(--gold); border-radius: 2px; transition: var(--transition);
}
.navbar .nav-link:hover::after, .navbar .nav-link.active::after { width: 60%; }

.navbar-toggler { border: none; padding: 8px; border-radius: var(--radius-sm); box-shadow: var(--shadow-soft); }
.navbar-toggler:focus { box-shadow: var(--shadow-glow); }

/* ---------- Hero Section ---------- */
#home {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  overflow: hidden; background: var(--primary-dark);
}
.hero-video-wrap {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%; overflow: hidden;
}
.hero-video {
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0; transition: opacity 1.5s ease;
}
.hero-video.playing { opacity: 0.4; }

.hero-overlay {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(6, 14, 21, 0.9) 0%, rgba(12, 24, 33, 0.78) 50%, rgba(6, 14, 21, 0.9) 100%);
}

.hero-particles {
  position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  overflow: hidden; pointer-events: none;
}
.particle {
  position: absolute; width: 4px; height: 4px; background: var(--gold);
  border-radius: 50%; opacity: 0; animation: float-particle 8s infinite ease-in-out;
}
.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; top: 60%; animation-delay: 1s; }
.particle:nth-child(3) { left: 40%; top: 30%; animation-delay: 2s; }
.particle:nth-child(4) { left: 60%; top: 70%; animation-delay: 3s; }
.particle:nth-child(5) { left: 80%; top: 40%; animation-delay: 4s; }
.particle:nth-child(6) { left: 90%; top: 80%; animation-delay: 5s; }
.particle:nth-child(7) { left: 30%; top: 90%; animation-delay: 1.5s; }
.particle:nth-child(8) { left: 70%; top: 10%; animation-delay: 3.5s; }
.particle:nth-child(9) { left: 50%; top: 50%; animation-delay: 2.5s; }
.particle:nth-child(10) { left: 15%; top: 75%; animation-delay: 4.5s; }
.particle:nth-child(11) { left: 85%; top: 25%; animation-delay: 0.8s; }
.particle:nth-child(12) { left: 45%; top: 85%; animation-delay: 3.8s; }
@keyframes float-particle {
  0% { opacity: 0; transform: translateY(0) scale(0); }
  20% { opacity: 0.6; transform: translateY(-20px) scale(1); }
  80% { opacity: 0.3; transform: translateY(-80px) scale(0.5); }
  100% { opacity: 0; transform: translateY(-120px) scale(0); }
}

.hero-content { position: relative; z-index: 2; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(201, 162, 39, 0.15); border: 1px solid rgba(201, 162, 39, 0.3);
  color: var(--gold-light); padding: 8px 20px; border-radius: 50px;
  font-size: 0.85rem; font-weight: 500; margin-bottom: 25px; backdrop-filter: blur(10px);
}
.hero-title {
  font-family: 'Playfair Display', serif; font-size: 4.5rem; font-weight: 800;
  margin-bottom: 10px; line-height: 1.1;
}
.hero-title-luher {
  display: block; background: linear-gradient(135deg, var(--gold), var(--gold-light));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  font-size: 5.5rem;
}
.hero-title-suffix {
  display: block; color: var(--white); font-size: 2.5rem; letter-spacing: 6px;
  font-weight: 400; font-family: 'Inter', sans-serif;
}
.hero-separator {
  width: 80px; height: 3px; margin: 20px auto;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}
.hero-subtitle {
  font-size: 1.15rem; color: rgba(255, 255, 255, 0.7);
  max-width: 650px; margin: 0 auto 35px; line-height: 1.9;
}
.hero-btns { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }

/* ---------- Hero Stats Bar ---------- */
.hero-stats-bar {
  position: absolute; bottom: 70px; left: 0; width: 100%; z-index: 2;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(15px); -webkit-backdrop-filter: blur(15px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 25px 0;
}
.stat-item {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 5px 0;
}
.stat-number {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem; font-weight: 800; color: var(--gold);
  line-height: 1;
}
.stat-plus {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem; font-weight: 800; color: var(--gold);
}
.stat-label {
  font-size: 0.82rem; color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase; letter-spacing: 1px; font-weight: 500;
}

/* ---------- Buttons ---------- */
.btn-soft-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--white); border: none; padding: 14px 35px; border-radius: 50px;
  font-weight: 600; font-size: 0.95rem; letter-spacing: 0.5px;
  box-shadow: 0 4px 15px rgba(201, 162, 39, 0.3); transition: var(--transition);
  display: inline-flex; align-items: center; gap: 10px;
}
.btn-soft-gold:hover {
  transform: translateY(-3px); box-shadow: 0 8px 25px rgba(201, 162, 39, 0.4); color: var(--white);
}
.btn-soft-outline-light {
  background: transparent; color: var(--white); border: 2px solid rgba(255, 255, 255, 0.3);
  padding: 12px 33px; border-radius: 50px; font-weight: 600; font-size: 0.95rem;
  transition: var(--transition); display: inline-flex; align-items: center; gap: 10px;
  backdrop-filter: blur(5px);
}
.btn-soft-outline-light:hover {
  background: rgba(255, 255, 255, 0.1); border-color: var(--gold); color: var(--gold);
  transform: translateY(-3px);
}

/* ---------- Section Styles ---------- */
section { padding: 100px 0; position: relative; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, rgba(201, 162, 39, 0.1), rgba(201, 162, 39, 0.05));
  color: var(--gold-dark); padding: 8px 20px; border-radius: 50px;
  font-size: 0.82rem; font-weight: 600; letter-spacing: 1px;
  text-transform: uppercase; margin-bottom: 18px;
}
.section-title { font-size: 2.8rem; font-weight: 800; margin-bottom: 15px; color: var(--primary); }
.section-subtitle {
  font-size: 1.1rem; color: var(--gray); max-width: 650px; margin: 0 auto; line-height: 1.8;
}
.section-divider {
  width: 60px; height: 4px; margin: 18px auto 0;
  background: linear-gradient(90deg, var(--gold), var(--gold-light)); border-radius: 4px;
}

/* ---------- About Us ---------- */
#nosotros { background: var(--white); }
.about-text {
  color: var(--gray-dark); font-size: 0.95rem; line-height: 1.9; margin-bottom: 18px;
}
.about-lead {
  font-size: 1.05rem; font-weight: 500; color: var(--primary);
  border-left: 4px solid var(--gold); padding-left: 20px;
  margin-bottom: 22px !important;
}
.about-highlights { margin-top: 25px; display: flex; flex-direction: column; gap: 12px; }
.highlight-item {
  display: flex; align-items: center; gap: 10px; padding: 12px 20px;
  background: var(--light); border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.9rem; color: var(--primary);
  box-shadow: inset 2px 2px 4px rgba(12, 24, 33, 0.04); transition: var(--transition);
}
.highlight-item:hover {
  background: linear-gradient(135deg, rgba(201, 162, 39, 0.1), rgba(201, 162, 39, 0.05));
  transform: translateX(5px);
}
.highlight-item i { color: var(--gold); font-size: 1.1rem; }

.about-image-container {
  border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card);
  position: relative;
}
.about-image-container::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 100%; height: 40%;
  background: linear-gradient(to top, rgba(12, 24, 33, 0.4), transparent);
  pointer-events: none;
}
.about-image-container img {
  width: 100%; height: 450px; object-fit: cover; transition: transform 6s ease;
}
.about-image-container:hover img { transform: scale(1.05); }

/* ---------- How It Works / Process ---------- */
#process { background: var(--light); }

.process-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 35px 25px;
  box-shadow: var(--shadow-soft); transition: var(--transition);
  height: 100%; position: relative; overflow: hidden; text-align: center;
}
.process-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transform: scaleX(0); transition: var(--transition); transform-origin: left;
}
.process-card:hover::before { transform: scaleX(1); }
.process-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card-hover); }

.process-step {
  position: absolute; top: 15px; right: 20px; font-size: 3rem;
  font-weight: 900; color: rgba(201, 162, 39, 0.08); font-family: 'Playfair Display', serif;
  line-height: 1;
}
.process-icon {
  width: 65px; height: 65px; margin: 0 auto 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-md); display: flex; align-items: center;
  justify-content: center; box-shadow: 0 6px 15px rgba(12, 24, 33, 0.2);
  transition: var(--transition);
}
.process-card:hover .process-icon {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
}
.process-icon i { color: var(--white); font-size: 1.5rem; }
.process-card h5 { font-size: 1.1rem; margin-bottom: 10px; color: var(--primary); }
.process-card p { color: var(--gray-dark); font-size: 0.9rem; line-height: 1.8; }

/* ---------- Servicios ---------- */
#servicios { background: var(--white); }

.service-accordion-item {
  background: var(--white); border: 1px solid rgba(12, 24, 33, 0.06) !important;
  border-radius: var(--radius-md) !important; margin-bottom: 16px;
  box-shadow: var(--shadow-soft); overflow: hidden; transition: var(--transition);
}
.service-accordion-item:hover { box-shadow: var(--shadow-soft-hover); }
.service-accordion-item .accordion-button {
  background: transparent; border: none; box-shadow: none !important;
  padding: 25px 30px; display: flex; align-items: center; gap: 18px;
  font-weight: 700; color: var(--primary); font-size: 1.1rem;
  border-radius: var(--radius-md) !important;
}
.service-accordion-item .accordion-button:not(.collapsed) {
  background: linear-gradient(135deg, rgba(201, 162, 39, 0.05), rgba(201, 162, 39, 0.02));
  color: var(--primary);
}
.service-accordion-item .accordion-button::after { display: none !important; }

.service-acc-icon {
  width: 55px; height: 55px; min-width: 55px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-sm); display: flex; align-items: center;
  justify-content: center; box-shadow: 0 6px 15px rgba(12, 24, 33, 0.2);
  transition: var(--transition);
}
.service-accordion-item:hover .service-acc-icon,
.service-accordion-item .accordion-button:not(.collapsed) .service-acc-icon {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
}
.service-acc-icon i { color: var(--white); font-size: 1.3rem; }

.service-acc-text { flex: 1; }
.service-acc-text small {
  display: block; font-weight: 400; color: var(--gray); font-size: 0.85rem; margin-top: 3px;
}

.acc-arrow {
  font-size: 1.2rem; color: var(--gold); transition: transform 0.3s ease;
}
.service-accordion-item .accordion-button:not(.collapsed) .acc-arrow {
  transform: rotate(180deg);
}

.service-accordion-item .accordion-body {
  padding: 0 30px 30px; color: var(--gray-dark); font-size: 0.92rem; line-height: 1.8;
}
.service-accordion-item .accordion-body h6 {
  color: var(--primary); font-weight: 700; margin-bottom: 8px; font-size: 1rem;
}

.diag-item {
  display: flex; align-items: center; gap: 8px; padding: 10px 16px;
  background: var(--light); border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.88rem; color: var(--primary);
}
.diag-item i { color: var(--gold); }

/* ---------- Valores ---------- */
#valores { background: var(--light); }
.value-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 40px 30px;
  box-shadow: var(--shadow-soft); transition: var(--transition);
  height: 100%; position: relative; overflow: hidden; text-align: center;
}
.value-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transform: scaleX(0); transition: var(--transition); transform-origin: left;
}
.value-card:hover::before { transform: scaleX(1); }
.value-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card-hover); }

.value-number {
  position: absolute; top: 15px; right: 20px; font-size: 3.5rem;
  font-weight: 900; color: rgba(201, 162, 39, 0.08); font-family: 'Playfair Display', serif;
  line-height: 1;
}
.value-icon {
  width: 60px; height: 60px; margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(201, 162, 39, 0.12), rgba(201, 162, 39, 0.05));
  border-radius: var(--radius-md); display: flex; align-items: center;
  justify-content: center; box-shadow: inset 3px 3px 6px rgba(255, 255, 255, 0.8);
}
.value-icon i { font-size: 1.5rem; color: var(--gold); }
.value-card h4 { font-size: 1.15rem; margin-bottom: 12px; color: var(--primary); }
.value-card p {
  color: var(--gray-dark); font-size: 0.9rem; line-height: 1.8;
}

/* ---------- Contacto ---------- */
#contacto { background: var(--white); }

.contact-info-card {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-lg); padding: 40px; color: var(--white);
  height: 100%; box-shadow: 0 10px 40px rgba(12, 24, 33, 0.2);
}
.contact-info-card h5 { color: var(--white); font-size: 1.3rem; margin-bottom: 30px; }
.contact-info-item {
  display: flex; align-items: flex-start; gap: 15px; margin-bottom: 25px;
}
.contact-info-item i {
  font-size: 1.3rem; color: var(--gold); margin-top: 3px; min-width: 24px; text-align: center;
}
.contact-info-item strong { display: block; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; color: var(--gold-light); margin-bottom: 4px; }
.contact-info-item p { margin: 0; font-size: 0.95rem; color: rgba(255, 255, 255, 0.8); }

.contact-social { display: flex; gap: 10px; margin-top: 30px; }
.contact-social a {
  width: 42px; height: 42px; border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.1); display: flex; align-items: center;
  justify-content: center; color: var(--white); font-size: 1.1rem;
  transition: var(--transition);
}
.contact-social a:hover { background: var(--gold); transform: translateY(-3px); color: var(--white); }

.contact-form {
  background: var(--light); border-radius: var(--radius-lg); padding: 40px;
  box-shadow: var(--shadow-soft);
}
.contact-form label { font-weight: 600; font-size: 0.88rem; color: var(--primary); margin-bottom: 8px; display: block; }
.contact-form .form-control {
  border: 2px solid transparent; background: var(--white);
  border-radius: var(--radius-sm); padding: 14px 20px; font-size: 0.92rem;
  box-shadow: var(--shadow-card); transition: var(--transition); color: var(--dark);
}
.contact-form .form-control:focus {
  border-color: var(--gold); background: var(--white);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.1);
}
.contact-form .form-control::placeholder { color: var(--gray); }

/* ---------- Footer ---------- */
footer {
  background: var(--primary-dark); color: rgba(255, 255, 255, 0.65); padding: 60px 0 0;
}
footer h5 { color: var(--white); font-size: 1.1rem; margin-bottom: 20px; }
footer p { font-size: 0.9rem; line-height: 1.8; }
footer ul { list-style: none; padding: 0; }
footer ul li { margin-bottom: 10px; }
footer ul li a {
  color: rgba(255, 255, 255, 0.55); font-size: 0.9rem; transition: var(--transition);
  display: inline-flex; align-items: center; gap: 8px;
}
footer ul li a:hover { color: var(--gold); padding-left: 5px; }
footer ul li a i { font-size: 0.75rem; color: var(--gold); }

.footer-logo { height: 50px; filter: brightness(2); }
.footer-desc { color: rgba(255, 255, 255, 0.55); max-width: 320px; }

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 20px 0; margin-top: 40px; text-align: center; font-size: 0.85rem;
}
.footer-social { display: flex; gap: 8px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08); display: flex; align-items: center;
  justify-content: center; color: rgba(255, 255, 255, 0.65); transition: var(--transition);
}
.footer-social a:hover { background: var(--gold); color: var(--white); transform: translateY(-3px); }

/* ---------- Language Toggle ---------- */
.btn-lang {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  background: rgba(201, 162, 39, 0.12); border: 1.5px solid rgba(201, 162, 39, 0.3);
  padding: 6px 12px; border-radius: 50px; cursor: pointer;
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.25s ease;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  line-height: 1; min-width: 72px; min-height: 36px;
}
.btn-lang img.lang-flag, img.lang-flag {
  width: 28px !important; height: 20px !important; max-width: 28px !important;
  border-radius: 4px; object-fit: cover; display: inline-block; vertical-align: middle;
  -webkit-backface-visibility: hidden; backface-visibility: hidden;
  transition: opacity 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              filter 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: opacity, transform, filter;
  opacity: 0.35; transform: scale(0.85);
  filter: grayscale(70%) brightness(0.8);
  -webkit-filter: grayscale(70%) brightness(0.8);
}
img.lang-flag.lang-flag-active {
  opacity: 1; transform: scale(1.08);
  filter: grayscale(0%) brightness(1) drop-shadow(0 2px 4px rgba(0,0,0,0.25));
  -webkit-filter: grayscale(0%) brightness(1) drop-shadow(0 2px 4px rgba(0,0,0,0.25));
}
img.lang-flag.flag-anim-in {
  animation: flagFlipIn 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}
img.lang-flag.flag-anim-out {
  animation: flagFlipOut 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}
@keyframes flagFlipIn {
  0% { opacity: 0.2; transform: scale(0.7) rotateY(90deg); filter: grayscale(100%) brightness(0.5); }
  60% { transform: scale(1.12) rotateY(-5deg); }
  100% { opacity: 1; transform: scale(1.08) rotateY(0deg); filter: grayscale(0%) brightness(1); }
}
@keyframes flagFlipOut {
  0% { opacity: 1; transform: scale(1.08) rotateY(0deg); filter: grayscale(0%) brightness(1); }
  100% { opacity: 0.35; transform: scale(0.85) rotateY(-90deg); filter: grayscale(70%) brightness(0.8); }
}
.btn-lang:hover { background: rgba(201, 162, 39, 0.25); border-color: var(--gold); transform: translateY(-2px); }
.btn-lang:hover img.lang-flag:not(.lang-flag-active) { opacity: 0.55; transform: scale(0.92); }
.btn-lang:active { transform: scale(0.95); }

.navbar.scrolled .btn-lang { background: var(--light); border-color: rgba(201, 162, 39, 0.3); }
.navbar.scrolled .btn-lang:hover { background: rgba(201, 162, 39, 0.12); border-color: var(--gold); }
.navbar-collapse .btn-lang { background: rgba(201, 162, 39, 0.1); border-color: rgba(201, 162, 39, 0.2); }
.navbar-collapse .btn-lang:hover { background: rgba(201, 162, 39, 0.2); }

body.lang-switching [data-i18n] { transition: opacity 0.3s ease, transform 0.3s ease; opacity: 0; transform: translateY(4px); }
body.lang-ready [data-i18n] { opacity: 1; transform: translateY(0); }

/* ---------- WhatsApp Float ---------- */
.whatsapp-float {
  position: fixed; bottom: 95px; right: 30px;
  width: 56px; height: 56px;
  background: #25D366; color: var(--white);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 1.7rem; box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
  z-index: 998; transition: var(--transition);
  opacity: 0; visibility: hidden; transform: scale(0.5);
}
.whatsapp-float.visible { opacity: 1; visibility: visible; transform: scale(1); }
.whatsapp-float:hover {
  transform: scale(1.1); box-shadow: 0 6px 25px rgba(37, 211, 102, 0.5);
  color: var(--white);
}

/* ---------- Scroll Animations ---------- */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.reveal.active { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.reveal-left.active { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.reveal-right.active { opacity: 1; transform: translateX(0); }
.img-reveal { position: relative; overflow: hidden; }
.img-reveal::before {
  content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
  background: var(--gold); z-index: 2; transform: scaleX(1); transform-origin: right;
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
}
.img-reveal.active::before { transform: scaleX(0); transform-origin: left; }

.delay-1 { transition-delay: 0.1s !important; }
.delay-2 { transition-delay: 0.2s !important; }
.delay-3 { transition-delay: 0.3s !important; }
.delay-4 { transition-delay: 0.4s !important; }
.delay-5 { transition-delay: 0.5s !important; }
.delay-6 { transition-delay: 0.6s !important; }

/* ---------- Back to Top ---------- */
#backToTop {
  position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px;
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--white); border: none; border-radius: 50%; font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 15px rgba(201, 162, 39, 0.3); cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(20px);
  transition: var(--transition); z-index: 999;
}
#backToTop.visible { opacity: 1; visibility: visible; transform: translateY(0); }
#backToTop:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(201, 162, 39, 0.4); }

/* ---------- Wave ---------- */
.wave-separator {
  position: absolute; bottom: -1px; left: 0; width: 100%; overflow: hidden; line-height: 0;
}
.wave-separator svg { position: relative; display: block; width: calc(100% + 1.3px); height: 60px; }

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
  .hero-title { font-size: 3.2rem; }
  .hero-title-luher { font-size: 4rem; }
  .hero-title-suffix { font-size: 1.8rem; letter-spacing: 3px; }
  .section-title { font-size: 2.2rem; }
  .stat-number { font-size: 2rem; }
  section { padding: 70px 0; }
  .hero-stats-bar { bottom: 60px; padding: 18px 0; }
  .navbar-collapse {
    background: rgba(255, 255, 255, 0.98); backdrop-filter: blur(20px);
    border-radius: var(--radius-md); padding: 20px; margin-top: 15px; box-shadow: var(--shadow-card);
  }
  .navbar .nav-link { color: var(--dark) !important; }
  .navbar.scrolled .logo-navbar:not(.logo-dark) { opacity: 1; position: static; pointer-events: auto; }
}

@media (max-width: 767.98px) {
  .hero-title { font-size: 2.6rem; }
  .hero-title-luher { font-size: 3.2rem; }
  .hero-title-suffix { font-size: 1.4rem; letter-spacing: 2px; }
  .section-title { font-size: 1.9rem; }
  .hero-btns { flex-direction: column; align-items: center; }
  .contact-form { padding: 30px 20px; }
  .contact-info-card { padding: 30px; }
  .footer-logo { height: 40px; }
  .stat-number { font-size: 1.7rem; }
  .stat-label { font-size: 0.72rem; }
  .hero-stats-bar { bottom: 60px; }
  .whatsapp-float { bottom: 85px; right: 20px; width: 50px; height: 50px; font-size: 1.5rem; }
  #backToTop { bottom: 25px; right: 20px; width: 45px; height: 45px; }
}