body { 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; 
    background-color: #ffffff; 
    color: #18181b; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    min-height: 100vh; 
    margin: 0; 
    padding: 20px; 
    box-sizing: border-box;
}

#background-stickers {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}
.bg-sticker {
    position: absolute;
    width: 120px;
    mix-blend-mode: multiply;
    opacity: 0.4;
    filter: contrast(1.5) brightness(1.1);
}

.container { 
    max-width: 480px; 
    width: 100%;
    background: white; 
    padding: 40px 30px; 
    border-radius: 12px; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.08); 
    text-align: center; 
    position: relative;
}
.slide { display: none; animation: fadeIn 0.4s; }
.slide.active { display: block; }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

h1 { font-size: 22px; margin-bottom: 12px; }
p { color: #52525b; line-height: 1.6; margin-bottom: 24px; font-size: 15px; }

input[type="password"] {
    width: 100%;
    padding: 12px;
    margin-bottom: 16px;
    border: 1px solid #d4d4d8;
    border-radius: 6px;
    font-size: 15px;
    box-sizing: border-box;
}
button.primary { 
    background-color: #000; 
    color: #fff; 
    border: none; 
    padding: 12px 24px; 
    border-radius: 6px; 
    font-size: 15px; 
    font-weight: bold;
    cursor: pointer; 
    transition: 0.2s; 
    width: 100%;
}
button.primary:hover { background-color: #3f3f46; transform: scale(1.02); }

.nav-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}
button.nav {
    background-color: #e4e4e7;
    color: #18181b;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
}
button.nav:hover { background-color: #d4d4d8; }

.joke-box {
    background: #fdf2f8;
    border: 1px solid #fbcfe8;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 15px;
    text-align: left;
}

.message-card {
    background: #f8fafc;
    border-left: 3px solid #64748b;
    padding: 16px 18px;
    border-radius: 4px;
    text-align: left;
    margin-bottom: 20px;
}
.message-card p {
    color: #334155;
    font-size: 14.5px;
    line-height: 1.6;
    margin-bottom: 12px;
}

.photo-placeholder {
    width: 100%;
    height: 250px;
    background-color: #e4e4e7;
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #71717a;
    font-size: 14px;
    border: 2px dashed #a1a1aa;
    overflow: hidden;
}
.photo-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 25%;
}

.gift-card {
    background: linear-gradient(135deg, #18181b, #3f3f46);
    color: white;
    padding: 30px 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
    margin-bottom: 20px;
}
.gift-card h3 { margin: 0 0 10px 0; font-size: 22px; color: #fff; }
.gift-card p { color: #d4d4d8; margin: 0; font-size: 15px; }
.voucher-code {
    margin-top: 15px;
    font-family: monospace;
    font-size: 18px;
    color: #fff !important;
    background: #000;
    padding: 8px;
    border-radius: 6px;
    letter-spacing: 1px;
}