body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    margin: 0; padding: 0; min-height: 100vh; color: white; overflow-x: hidden;
}
.splash {
    position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    display: flex; justify-content: center; align-items: center; z-index: 9999;
}
.logo-wrap { text-align: center; }
.logo { width: 90px; height: 90px; margin: 0 auto 20px; animation: satellitePulse 2s infinite ease-in-out; }
.logo-wrap h2 { font-size: 28px; margin: 10px 0; }
.logo-wrap p { color: #b0c4de; font-size: 14px; margin-bottom: 30px; }
.loading-spinner {
    width: 40px; height: 40px; border: 4px solid rgba(255, 255, 255, 0.1);
    border-left-color: #1D9E75; border-radius: 50%; margin: 0 auto; animation: spin 1s linear infinite;
}
@keyframes spin { 100% { transform: rotate(360deg); } }
@keyframes satellitePulse {
    0% { transform: scale(1); } 50% { transform: scale(1.04); } 100% { transform: scale(1); }
}
.navbar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 8%; background: rgba(15, 32, 39, 0.5); backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1); position: relative; z-index: 900;
}
.nav-logo { font-size: 22px; font-weight: bold; color: #1D9E75; }
.nav-links { list-style: none; display: flex; gap: 25px; margin: 0; padding: 0; }
.nav-links li { position: relative; }
.nav-links a { color: #e0e6ed; text-decoration: none; font-size: 15px; transition: 0.3s; padding: 10px 0; }
.nav-links a:hover { color: #1D9E75; }
.dropdown-menu {
    position: absolute; top: 100%; right: 0; background: rgba(20, 40, 50, 0.95);
    backdrop-filter: blur(15px); border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px; padding: 10px 0; width: 240px; list-style: none; display: none; margin-top: 10px;
}
.dropdown-menu li a { display: block; padding: 12px 20px; color: #e0e6ed; font-size: 14px; text-decoration: none; }
.dropdown-menu li a:hover { background: rgba(29, 158, 117, 0.2); color: #fff; }
.nav-links li:hover .dropdown-menu { display: block; }
.main-content { display: flex; justify-content: center; align-items: center; padding: 60px 20px; }
.welcome-section { text-align: center; max-width: 900px; width: 100%; }
.welcome-section h1 { font-size: 36px; margin-bottom: 20px; }
.main-desc { font-size: 16px; color: #b0c4de; line-height: 1.8; margin-bottom: 50px; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 30px; }
.service-card {
    background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px; padding: 30px 20px; backdrop-filter: blur(10px); transition: 0.3s;
}
.service-card:hover { transform: translateY(-8px); border-color: #1D9E75; }
.card-icon { font-size: 40px; margin-bottom: 15px; }
.input-group { text-align: right; margin-bottom: 20px; }
.input-group label { display: block; font-size: 13px; color: #1D9E75; margin-bottom: 8px; }
.input-group input { width: 100%; padding: 12px 15px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, 0.15); background: rgba(255, 255, 255, 0.05); color: #fff; }
.calc-btn { width: 100%; background: #1D9E75; color: white; border: none; padding: 14px; border-radius: 12px; font-size: 16px; cursor: pointer; }
.modal { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.6); backdrop-filter: blur(8px); display: flex; justify-content: center; align-items: center; opacity: 0; visibility: hidden; transition: 0.4s; }
.modal.show { opacity: 1; visibility: visible; }
.modal-content { background: rgba(255, 255, 255, 0.07); border-radius: 24px; padding: 40px; width: 90%; max-width: 450px; border: 1px solid rgba(255, 255, 255, 0.15); backdrop-filter: blur(15px); }
.close-btn { position: absolute; top: 15px; left: 20px; font-size: 28px; color: #ccd6f6; cursor: pointer; }