@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;700&display=swap');

:root {
    --primary: #6366f1;
    --background: #0f172a;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text: #f8fafc;
    --text-muted: #94a3b8;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background: radial-gradient(circle at top right, #1e1b4b, #0f172a, #020617);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.glass-container {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    display: flex;
    flex-direction: row;
    gap: 60px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    max-width: 900px;
    width: 100%;
}

.date-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
    flex: 1;
}

.date-container, .date-unit {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

input[type="date"], .date-unit-select {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: white;
    padding: 12px 16px;
    font-size: 16px;
    outline: none;
    transition: all 0.3s ease;
}

input[type="date"]:focus, .date-unit-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
}

.date-unit-select {
    width: 100%;
    scrollbar-width: thin;
    scrollbar-color: var(--glass-border) transparent;
}

.date-unit-select::-webkit-scrollbar {
    width: 6px;
}

.date-unit-select::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 10px;
}

.date-units {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 320px;
    justify-content: center;
}

.date-units span {
    background: rgba(99, 102, 241, 0.1);
    border-left: 4px solid var(--primary);
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 18px;
    animation: slideIn 0.4s ease-out forwards;
}

.placeholder-text {
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
    opacity: 0.7;
}

footer {
    padding: 20px;
    text-align: center;
}

footer a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 12px;
    transition: color 0.3s;
}

footer a:hover {
    color: var(--primary);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (max-width: 768px) {
    .glass-container {
        flex-direction: column;
        gap: 40px;
        padding: 30px;
    }
    
    .date-units {
        width: 100%;
    }
}