:root {
    --background-color: #111827; /* Gray 900 */
    --text-color: #D1D5DB;       /* Gray 300 */
    --header-color: #F9FAFB;     /* Gray 50 */
    --accent-color: #38bdf8;     /* A subtle blue */
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    text-align: center;
}

.container {
    max-width: 600px;
    padding: 2rem;
}

header h1 {
    font-size: 2.5rem;
    color: var(--header-color);
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

main h2 {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

main p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 2.5rem;
}

.about-content {
    text-align: left;
    max-width: 650px;
}

.about-content h2 {
    text-align: center;
}

.about-content p {
    margin-bottom: 1.5rem;
}

.countdown {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-links {
    margin-top: 3rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-links a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--header-color);
    transition: background-color 0.2s ease-in-out;
}

.social-links a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.social-links a svg {
    width: 24px;
    height: 24px;
}

.time-unit {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    min-width: 90px;
}

.time-unit span {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--header-color);
}

.time-unit label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-color);
}

footer {
    margin-top: 3rem;
    font-size: 0.9rem;
    opacity: 0.7;
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.footer-link {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.2s ease-in-out;
}

.footer-link:hover {
    color: var(--header-color);
    text-decoration: underline;
}

.back-link {
    display: block;
    text-align: center;
    margin-top: 2.5rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 700;
}

/* Mobile-friendly adjustments */
@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }

    header h1 {
        font-size: 2rem;
    }

    main h2 {
        font-size: 2.5rem;
    }

    .countdown {
        gap: 0.5rem;
    }

    .time-unit {
        padding: 0.75rem;
        min-width: 70px;
    }

    .time-unit span {
        font-size: 2rem;
    }
}