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

:root {
    --regisa-blue: #1a2b5b;
    --regisa-gold: #d4af37;
    --regisa-blue-dark: #0e1935;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background-color: #f8f8f8;
    padding-top: 80px; /* Padding for fixed header */
}

.bg-regisa-blue { background-color: var(--regisa-blue); }
.text-regisa-gold { color: var(--regisa-gold); }
.border-regisa-gold { border-color: var(--regisa-gold); }
.hover\:bg-regisa-gold:hover { background-color: var(--regisa-gold); }
.hover\:text-regisa-blue:hover { color: var(--regisa-blue); }

.whatsapp-button { transition: all 0.3s ease; }
.whatsapp-button:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 8px 15px rgba(34, 197, 94, 0.4); 
}

.gold-button {
    background-color: var(--regisa-gold);
    color: var(--regisa-blue);
    transition: all 0.3s ease;
}
.gold-button:hover {
    background-color: #e0b946;
    box-shadow: 0 8px 15px rgba(212, 175, 55, 0.4);
}
.gold-button:focus { 
    outline: none; 
    box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.5); 
}

.hero-bg {
    background-color: var(--regisa-blue);
}
.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* GANTI DENGAN GAMBAR ASLI: contohnya, gambar gedung perkantoran modern atau ruang rapat */
    background-image: url('images/hero-regisa.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.1; /* Opacity sedikit diturunkan agar tidak terlalu ramai */
    z-index: 0;
}

.glassmorphism-card {
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 1rem;
    padding: 2.5rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    z-index: 1;
    position: relative;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease-in-out;
    background: rgba(26, 43, 91, 0.9);
}
header.scrolled {
    background: linear-gradient(135deg, var(--regisa-blue), var(--regisa-blue-dark));
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.navbar-link {
    position: relative;
    color: #d1d5db;
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    transition: all 0.3s ease-in-out;
    overflow: hidden;
    z-index: 1;
    font-weight: 500;
}
.navbar-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--regisa-gold);
    transition: width 0.3s ease-in-out;
    z-index: -1;
}
.navbar-link:hover {
    color: white;
    transform: translateY(-2px);
    background-color: rgba(255, 255, 255, 0.1);
}
.navbar-link:hover::before { width: 100%; }

.package-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}
.package-card ul {
    flex-grow: 1;
    margin-bottom: 1.5rem;
}
.package-card .text-center { margin-top: auto; }

.floating-button {
    position: fixed;
    bottom: 30px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    z-index: 1000;
}
.floating-button:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}
.floating-whatsapp {
    right: 30px;
    background-color: #25D366;
}
.floating-phone {
    left: 30px;
    background-color: #4A90E2;
}

/* Responsive adjustments */
@media (max-width: 767px) {
    #main-navbar {
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: linear-gradient(135deg, var(--regisa-blue), var(--regisa-blue-dark));
        z-index: 20;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
        padding-bottom: 1rem;
    }
    #main-navbar.mobile-menu-open { display: flex; }
    #main-navbar .navbar-link {
        width: 100%;
        text-align: center;
        padding: 0.75rem 0;
        border-bottom: 1px solid rgba(255,255,255,0.05);
        border-radius: 0;
    }
    #main-navbar .navbar-link:last-child { border-bottom: none; }
}

@media (max-width: 640px) {
    .floating-button {
        width: 50px;
        height: 50px;
        bottom: 20px;
    }
    .floating-whatsapp { right: 20px; }
    .floating-phone { display: none; } /* Sembunyikan tombol telepon di layar sangat kecil agar tidak berantakan */
}

/* hilangkan garis/bayangan bawah header */
header { box-shadow: none !important; }

/* beri ruang di atas konten setinggi header */
body { padding-top: 72px; } /* sesuaikan kalau tinggi header berubah */

html, body {
  overflow-x: hidden;
}