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

:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --accent-color: #a09aa0;
    --gradient-1: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.15));
    --gradient-2: linear-gradient(225deg, rgba(236, 72, 153, 0.15), rgba(239, 68, 68, 0.15));
    --gradient-3: linear-gradient(45deg, rgba(59, 130, 246, 0.15), rgba(14, 165, 233, 0.15));
    --shadow-color: rgba(0, 0, 0, 0.1);
    --card-bg: rgba(255, 255, 255, 0.7);
    --star-opacity: 0;
    --flower-opacity: 0.35;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-primary: #0a0a0a;
        --bg-secondary: #1a1a1a;
        --text-primary: #ffffff;
        --text-secondary: #a0a0a0;
        --accent-color: #a09aa0;
        --gradient-1: linear-gradient(135deg, rgba(99, 102, 241, 0.25), rgba(168, 85, 247, 0.25));
        --gradient-2: linear-gradient(225deg, rgba(236, 72, 153, 0.25), rgba(239, 68, 68, 0.25));
        --gradient-3: linear-gradient(45deg, rgba(59, 130, 246, 0.25), rgba(14, 165, 233, 0.25));
        --shadow-color: rgba(255, 255, 255, 0.05);
        --card-bg: rgba(26, 26, 26, 0.7);
        --star-opacity: 1;
        --flower-opacity: 0.12;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: background-color 0.6s ease, color 0.6s ease;
    opacity: 0;
    animation: fade-in-body 0.8s ease forwards;
}

@keyframes fade-in-body {
    to {
        opacity: 1;
    }
}

.main-container {
    position: relative;
    z-index: 10;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    transform: scale(0.95);
    animation: zoom-in-fade 1s ease 0.3s forwards;
}

@keyframes zoom-in-fade {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.stars-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: var(--star-opacity);
    transition: opacity 0.6s ease;
    pointer-events: none;
}

.flower-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('../images/hv-background.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: var(--flower-opacity);
    z-index: 2;
    pointer-events: none;
    transition: opacity 0.6s ease;
}