body {
    font-family: 'Nunito', sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    background-size: 400% 400%;
    animation: gradient 15s ease infinite;
}

@keyframes gradient {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.container {
    max-width: 800px;
    padding: 50px;
    border-radius: 30px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    position: relative;
    overflow: hidden;
}

.container::before {
    content: '';
    position: absolute;
    top: -50px;
    left: -50px;
    right: -50px;
    bottom: -50px;
    background: radial-gradient(circle at center, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    z-index: -1;
}

h1 {
    font-family: 'Pacifico', cursive;
    color: #ff758c;
    font-size: 3rem;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.twins-names {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px 0;
    gap: 15px;
}

.twin-name {
    font-family: 'Pacifico', cursive;
    font-size: 2.5rem;
    color: #6a5acd;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.1);
    animation: pulse 2s infinite alternate;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.05);
    }
}

.twin-emoji {
    font-size: 3.5rem;
    margin: 0 10px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-20px);
    }
    60% {
        transform: translateY(-10px);
    }
}

.due-date {
    font-size: 1.3rem;
    color: #555;
    margin-bottom: 30px;
    background-color: rgba(106, 90, 205, 0.1);
    padding: 10px 20px;
    border-radius: 50px;
    display: inline-block;
}

.countdown {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 25px;
    margin: 40px 0;
}

.countdown-item {
    width: 140px;
    padding: 25px 0;
    background: linear-gradient(145deg, #ff758c 0%, #ff7eb3 100%);
    border-radius: 20px;
    box-shadow: 0 10px 20px rgba(255, 117, 140, 0.3);
    color: white;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.countdown-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
    z-index: 1;
}

.countdown-item:hover {
    transform: translateY(-7px) scale(1.03);
    box-shadow: 0 15px 30px rgba(255, 117, 140, 0.4);
}

.countdown-value {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 5px;
    position: relative;
    z-index: 2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.countdown-label {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: bold;
    position: relative;
    z-index: 2;
}

.hearts-container {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 20px 0;
}

.heart {
    font-size: 1.8rem;
    animation: float 3s infinite alternate;
}

.heart:nth-child(1) {
    animation-delay: 0s;
}

.heart:nth-child(2) {
    animation-delay: 0.5s;
}

.heart:nth-child(3) {
    animation-delay: 1s;
}

@keyframes float {
    0% {
        transform: translateY(0) rotate(-5deg);
    }
    100% {
        transform: translateY(-15px) rotate(5deg);
    }
}

.message {
    margin-top: 30px;
    font-size: 1.8rem;
    font-family: 'Pacifico', cursive;
    color: #6a5acd;
    position: relative;
    display: inline-block;
}

.message::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(to right, transparent, #ff758c, transparent);
}

@media (max-width: 700px) {
    .container {
        padding: 30px;
        margin: 20px;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    .twin-name {
        font-size: 1.8rem;
    }
    
    .countdown-item {
        width: 110px;
    }
    
    .countdown-value {
        font-size: 2.5rem;
    }
}