:root {
  --navy: #002D5B;
  --navy-dark: #001B38;
  --lime: #8CC63F;
  --white: #FFFFFF;
  --slate-50: #F8FAFC;
  --slate-200: #E2E8F0;
  --slate-600: #475569;
  --slate-800: #1E293B;
  --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--slate-800); background: var(--white); line-height: 1.6; overflow-x: hidden; }
.container { width: 90%; max-width: 1200px; margin: 0 auto; }

/* Preloader */
#vas-preloader { position: fixed; top: 0; left: 0; width: 100vw; height: 100vh; background-color: var(--navy); z-index: 999999; display: flex; align-items: center; justify-content: center; transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1); }
#vas-preloader.vas-loaded { transform: translateY(-100%); pointer-events: none; }
.vas-content { display: flex; flex-direction: column; align-items: center; }
.vas-brand { color: var(--white); font-size: 26px; font-weight: 800; letter-spacing: 2px; margin-bottom: 24px; opacity: 0; animation: vasFadeIn 0.8s ease forwards 0.2s; }
.vas-accent { color: var(--lime); }
.vas-anim-box { position: relative; width: 120px; height: 120px; display: flex; align-items: center; justify-content: center; }
.vas-svg { width: 100px; height: 100px; }
.vas-check { stroke-dasharray: 100; stroke-dashoffset: 100; animation: vasDrawCheck 1s ease-out forwards 0.6s; }
.vas-plane-wrapper { position: absolute; top: 18px; right: 12px; opacity: 0; display: flex; align-items: center; animation: vasFlyAway 1.3s cubic-bezier(0.4, 0, 0.2, 1) forwards 1.4s; }
.vas-plane { transform: rotate(45deg); }
.vas-contrail { width: 0px; height: 3px; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8)); border-radius: 2px; margin-right: -4px; animation: vasContrail 1.3s ease-out forwards 1.4s; }

@keyframes vasFadeIn { to { opacity: 1; } }
@keyframes vasDrawCheck { to { stroke-dashoffset: 0; } }
@keyframes vasContrail { 0% { width: 0; opacity: 0; } 50% { width: 140px; opacity: 0.9; } 100% { width: 220px; opacity: 0; } }
@keyframes vasFlyAway { 0% { opacity: 0; transform: translate(0, 0) scale(0.8); } 20% { opacity: 1; } 100% { opacity: 1; transform: translate(450px, -350px) scale(1.3); } }

/* Navbar */
.navbar { position: sticky; top: 0; background: var(--white); border-bottom: 1px solid var(--slate-200); z-index: 1000; }
.nav-container { display: flex; align-items: center; justify-content: space-between; height: 80px; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.logo-text { font-size: 22px; font-weight: 800; color: var(--navy); text-decoration: none; }
.logo { text-decoration: none; }
.nav-links { display: flex; gap: 32px; }
.nav-links a { text-decoration: none; color: var(--navy); font-weight: 600; font-size: 15px; transition: var(--transition); }
.nav-links a:hover { color: var(--lime); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 12px 24px; font-size: 15px; font-weight: 700; border-radius: 6px; text-decoration: none; cursor: pointer; border: 2px solid transparent; transition: var(--transition); }
.btn-primary { background-color: var(--lime); color: var(--navy); }
.btn-primary:hover { background-color: #7BB334; transform: translateY(-2px); }
.btn-outline { background: transparent; border-color: var(--white); color: var(--white); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-2px); }

/* Hero */
.hero { background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%); color: var(--white); padding: 100px 0; }
.hero-container { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; align-items: center; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.hero-content h1 { font-size: clamp(36px, 5vw, 54px); font-weight: 800; line-height: 1.15; margin-bottom: 24px; }
.hero-content p { font-size: 18px; color: var(--slate-200); line-height: 1.7; margin-bottom: 36px; max-width: 540px; }
.hero-buttons { display: flex; gap: 16px; }
.image-placeholder { width: 100%; aspect-ratio: 4/3; background: rgba(255, 255, 255, 0.05); border: 2px dashed rgba(255, 255, 255, 0.2); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--slate-200); font-size: 14px; }

/* Services */
.services { padding: 100px 0; background-color: var(--slate-50); }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header h2 { font-size: 36px; font-weight: 800; color: var(--navy); margin-bottom: 12px; }
.section-header p { font-size: 17px; color: var(--slate-600); }
.service-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 32px; }
.service-card { background: var(--white); padding: 40px; border-radius: 12px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); border-top: 4px solid var(--lime); transition: var(--transition); }
.service-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }
.card-icon { font-size: 38px; margin-bottom: 20px; }
.service-card h3 { font-size: 24px; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.service-card .subtitle { font-size: 14px; font-weight: 700; color: var(--lime); text-transform: uppercase; margin-bottom: 16px; }

/* Map */
.global-map { padding: 100px 0; background-color: var(--white); text-align: center; }
.global-map h2 { font-size: 36px; font-weight: 800; color: var(--navy); margin-bottom: 40px; }
.map-placeholder { width: 100%; height: 420px; background: var(--slate-50); border: 2px dashed var(--slate-200); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--slate-600); font-weight: 600; }

/* FAQ */
.faq { padding: 100px 0; background-color: var(--slate-50); }
.faq-container { max-width: 800px; }
.accordion { display: flex; flex-direction: column; gap: 16px; }
details { background: var(--white); border-radius: 8px; border: 1px solid var(--slate-200); overflow: hidden; transition: var(--transition); }
details[open] { border-color: var(--lime); box-shadow: 0 2px 4px rgba(0,0,0,0.05); }
summary { padding: 20px 24px; font-weight: 700; color: var(--navy); font-size: 17px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; font-size: 22px; color: var(--lime); transition: transform 0.2s ease; }
details[open] summary::after { transform: rotate(45deg); }
.details-content { padding: 0 24px 20px 24px; color: var(--slate-600); }

/* Contact */
.contact { padding: 100px 0; background: var(--white); }
.contact-container { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; align-items: start; }
.contact-info h2 { font-size: 36px; font-weight: 800; color: var(--navy); margin-bottom: 16px; }
.contact-info p { color: var(--slate-600); margin-bottom: 32px; }
.office-details { border-left: 3px solid var(--lime); padding-left: 20px; margin-top: 24px; }
.office-details h3 { color: var(--navy); font-size: 18px; margin-bottom: 6px; }
.contact-form-wrapper { background: var(--slate-50); padding: 40px; border-radius: 12px; border: 1px solid var(--slate-200); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; color: var(--navy); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea { width: 100%; padding: 12px 16px; font-family: inherit; font-size: 15px; border: 1px solid var(--slate-200); border-radius: 6px; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { outline: none; border-color: var(--navy); }
.submit-btn { width: 100%; border: none; }
#form-response { margin-top: 16px; font-size: 14px; font-weight: 600; text-align: center; }
#form-response.success { color: #166534; }
#form-response.error { color: #991B1B; }

/* Footer & WhatsApp */
footer { background: var(--navy); color: var(--white); padding: 60px 0; text-align: center; }
.footer-brand { font-size: 20px; font-weight: 800; letter-spacing: 1px; margin-bottom: 16px; }
footer p { font-size: 14px; color: var(--slate-200); opacity: 0.8; }
.whatsapp-float { position: fixed; width: 60px; height: 60px; bottom: 30px; right: 30px; background-color: #25D366; color: #FFF; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25); z-index: 1000; transition: var(--transition); }
.whatsapp-float:hover { transform: scale(1.1); }

/* Responsive */
@media (max-width: 992px) {
  .hero-container { grid-template-columns: 1fr; text-align: center; gap: 40px; }
  .hero-content p { margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .contact-container { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero, .services, .global-map, .faq, .contact { padding: 60px 0; }
  .contact-form-wrapper { padding: 24px; }
}