:root {
    --primary: #ff4d6d;
    --primary-light: #ff758f;
    --accent: #ffb3c1;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.25);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #fff0f3 0%, #ffccd5 100%);
    font-family: 'Inter', sans-serif;
    overflow: hidden;
}

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

.heart {
    position: absolute;
    color: var(--primary-light);
    opacity: 0.3;
    animation: float 10s infinite ease-in-out;
}

@keyframes float {
    0% {
        transform: translateY(110vh) rotate(0deg);
    }

    100% {
        transform: translateY(-10vh) rotate(360deg);
    }
}

.proposal-card {
    background: var(--glass);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 24px;
    padding: 3rem;
    box-shadow: var(--shadow);
    text-align: center;
    z-index: 10;
    max-width: 90%;
    width: 500px;
}

h1 {
    font-family: 'Dancing Script', cursive;
    font-size: 3.5rem;
    color: var(--primary);
    margin-bottom: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.05);
}

.button-group {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
    position: relative;
    height: 60px;
}

.btn {
    padding: 1rem 2.5rem;
    font-size: 1.25rem;
    font-weight: bold;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    min-width: 120px;
}

.si {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(255, 77, 109, 0.3);
}

.si:hover {
    transform: scale(1.1);
    background: var(--primary-light);
}

.no {
    background: #adb5bd;
    color: white;
    position: relative;
    z-index: 1000;
    min-width: 120px;
    height: 50px;
    pointer-events: auto;
    display: inline-block;
}

.hidden {
    display: none;
}

#success-msg h2 {
    color: var(--primary);
    font-size: 2rem;
    margin-top: 1rem;
}

#success-msg p {
    color: #590d22;
    font-size: 1.2rem;
    margin-top: 0.5rem;
}