* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background: linear-gradient(135deg, #e6f2ff 0%, #c2e0ff 100%);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.snow-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.snowflake {
    position: absolute;
    top: -10px;
    color: #fff;
    user-select: none;
    pointer-events: none;
    animation: fall linear infinite;
}

@keyframes fall {
    0% {
        transform: translateY(-10px) translateX(0);
    }
    50% {
        transform: translateY(50vh) translateX(15px);
    }
    100% {
        transform: translateY(105vh) translateX(-15px);
    }
}

.btn-back-top-left {
    position: fixed;
    top: 20px;
    left: 20px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: background 0.2s ease, transform 0.2s ease, opacity 0.3s ease;
}

.btn-back-top-left:hover {
    background: #ffffff;
    transform: scale(1.1);
}

.btn-back-top-left.hidden {
    display: none;
    opacity: 0;
    pointer-events: none;
}

.card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    padding: 32px 24px;
    width: 90%;
    max-width: 360px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    z-index: 2;
    transition: all 0.4s ease;
}

.card.hidden {
    display: none;
    opacity: 0;
    transform: scale(0.8);
}

.gift-icon {
    font-size: 64px;
    margin-bottom: 12px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

h2 {
    font-family: 'Poppins', sans-serif;
    color: #2c3e50;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.3px;
}

p {
    font-family: 'Inter', sans-serif;
    color: #5a6b7c;
    font-size: 15px;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 24px;
    letter-spacing: -0.1px;
}

.button-group {
    display: flex;
    gap: 12px;
    justify-content: center;
    position: relative;
}

.btn {
    font-family: 'Poppins', sans-serif;
    padding: 12px 24px;
    border-radius: 12px;
    border: none;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
}

.btn-primary {
    background: #ff477e;
    color: white;
    flex: 1;
}

.btn-primary:hover {
    background: #ff2a6d;
    transform: scale(1.03);
}

.btn-secondary {
    background: #f0f0f0;
    color: #777;
    flex: 1;
}

.character-wrapper {
    width: 100%;
    height: 340px;
    border-radius: 16px;
    overflow: hidden;
    margin-bottom: 16px;
    background: #000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.character-video, .refuse-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    border-radius: 16px;
}

.character-video {
    object-position: 41% center;
    pointer-events: none;
}