#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

body {
    font-family: 'Montserrat', sans-serif;
    margin: 0;
    color: #333;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

#welcome-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    z-index: 1000;
    padding: 20px;
}

.welcome-content h1, .welcome-content h2 {
    color: white;
}

.nama-tamu-overlay {
    font-family: 'Great Vibes', cursive;
    font-size: 3em;
    font-weight: normal;
    color: #FFD700;
    margin-bottom: 0;
}

#open-invitation {
    background-color: #5D4037;
    color: white;
    border: none;
    border-radius: 50px;
    padding: 15px 30px;
    font-size: 1.2em;
    cursor: pointer;
    margin-top: 20px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
    transition: transform 0.2s;
}

#open-invitation:hover {
    transform: scale(1.05);
}

#video-background {
    position: fixed;
    right: 0;
    bottom: 0;
    min-width: 100%;
    min-height: 100%;
    z-index: -100;
    object-fit: cover;
}

.container {
    background-color: rgba(255, 255, 255, 0.85);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    max-width: 600px;
    width: 90%;
    text-align: center;
    z-index: 10;
}

h1 {
    font-size: 2.5em;
    color: #5D4037;
    margin-bottom: 0;
}

h2 {
    font-family: 'Great Vibes', cursive;
    font-size: 4em;
    color: #795548;
    margin-top: 5px;
    font-weight: normal;
}

.nama-tamu {
    font-family: 'Great Vibes', cursive;
    font-size: 3em;
    font-weight: normal;
    color: #BF360C;
    padding: 10px;
    background-color: #FFF3E0;
    border-radius: 5px;
    margin-bottom: 0;
    margin-top: 5px;
}

.info-acara {
    margin: 30px 0;
    text-align: left;
    display: inline-block;
}

footer {
    margin-top: 40px;
}

.rsvp-section, .gift-section {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 1px solid #ddd;
}

.collapsible-trigger {
    background-color: #f1f1f1;
    color: #444;
    cursor: pointer;
    padding: 18px;
    width: 100%;
    border: none;
    text-align: left;
    outline: none;
    font-size: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 8px;
    transition: background-color 0.3s;
}

.collapsible-trigger:hover, .collapsible-trigger.active {
    background-color: #ddd;
}

.collapsible-trigger h2 {
    margin: 0;
    font-size: 1.2em;
    font-family: 'Montserrat', sans-serif;
    color: #5D4037;
}

.arrow-icon {
    font-size: 1.2em;
    transition: transform 0.3s;
}

.arrow-icon.open {
    transform: rotate(180deg);
}

.collapsible-content {
    padding: 0 18px;
    background-color: white;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out;
    border-radius: 0 0 8px 8px;
}

.collapsible-content iframe {
    margin-top: 15px;
    border-radius: 5px;
}

.gift-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #f9f9f9;
    border: 1px solid #eee;
    border-radius: 8px;
    padding: 15px;
    margin-top: 15px;
    text-align: left;
}

.bank-logo {
    height: 30px;
    margin-right: 15px;
}

.account-info {
    flex-grow: 1;
}
.account-info p {
    margin: 2px 0;
}
.account-number {
    font-weight: bold;
    font-size: 1.1em;
}

.copy-btn {
    background-color: #e0e0e0;
    border: none;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9em;
    transition: background-color 0.2s;
}
.copy-btn:hover {
    background-color: #bdbdbd;
}

.lokasi-tamu {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.2em;
    font-weight: normal;
    color: #555;
    margin-top: -15px;
    margin-bottom: 20px;
}

.lokasi-tamu-overlay {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.2em;
    font-weight: normal;
    color: #f0f0f0;
    margin-top: -10px;
}