body {
    margin: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top, #ffe6f0, #ff99c8);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    overflow: hidden;
}

.container {
    text-align: center;
    color: #fff;
    position: relative;
}

.heart {
    position: relative;
    width: 140px;
    height: 140px;
    background-color: #ff3366;
    transform: rotate(-45deg);
    margin: 0 auto 25px;
    cursor: pointer;
    box-shadow: 0 0 30px rgba(255, 0, 80, 0.7);
    transition: all 0.3s ease;
}

.heart::before,
.heart::after {
    content: "";
    position: absolute;
    width: 140px;
    height: 140px;
    background-color: #ff3366;
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.heart::before {
    top: -70px;
    left: 0;
}

.heart::after {
    left: 70px;
    top: 0;
}

.sparkle {
    position: absolute;
    width: 16px;
    height: 16px;
    background: radial-gradient(circle, #fff 0%, #ffd700 40%, #ff69b4 70%, transparent 100%);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0;
    box-shadow: 0 0 8px #fff,
    0 0 16px #ffd700,
    0 0 24px #ff69b4;
    filter: blur(0.5px);
}

.sparkle:nth-child(1) {
    top: -20px;
    left: 20px;
}

.sparkle:nth-child(2) {
    top: 10px;
    left: -20px;
}

.sparkle:nth-child(3) {
    top: 60px;
    left: 80px;
}

.sparkle:nth-child(4) {
    top: 100px;
    right: 20px;
}

.sparkle:nth-child(5) {
    bottom: 20px;
    left: 50px;
}

.sparkle:nth-child(6) {
    top: 0;
    right: -20px;
    animation-delay: 1s;
}

h1 {
    margin: 0 0 8px;
    font-size: 26px;
    letter-spacing: 0.04em;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

p {
    margin: 0;
    font-size: 16px;
    opacity: 0.95;
}

#particles, #floating-hearts {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
}

#floating-hearts {
    z-index: 1;
}

#particles {
    z-index: 99;
}

.particle-heart {
    position: absolute;
    font-size: 26px;
    line-height: 1;
}

.floating-heart {
    position: absolute;
    font-size: 20px;
    animation: float 8s infinite linear;
}

.love-text {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 5rem;
    font-weight: bold;
    color: #ff1493;
    text-shadow: 0 0 40px #ff69b4;
    opacity: 0;
    z-index: 100;
    pointer-events: none;
}

.gif-wrapper {
    margin-top: 20px;
    width: 320px;
    max-width: 90%;
    margin-left: auto;
    margin-right: auto;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 0 30px rgba(255, 105, 180, 0.6);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.8s ease;
}

.gif-wrapper.show {
    opacity: 1;
    transform: translateY(0);
}