:root {
    --primary-color: #2c3e50;
    --text-color: #333333;
    --light-text: #666666;
    --accent-color: #3498db;
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.1);
}

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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    background-color: #f8f9fa;
}

.background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/bg.png');
    background-repeat: repeat;
    background-size: 400px;
    opacity: 0.15;
    z-index: -1;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

.header {
    padding: 3rem 0;
    text-align: center;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.logo-img {
    height: 80px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.logo-text {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.logo-iso {
    color: #08548a;
}

.logo-book {
    color: #333333;
}

.main-content {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
}

.contact-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 4rem;
    box-shadow: var(--glass-shadow);
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(31, 38, 135, 0.15);
}

.contact-card h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-weight: 600;
}

.address-details {
    margin-bottom: 2.5rem;
    font-size: 1.25rem;
    color: var(--light-text);
}

.address-details p {
    margin-bottom: 0.5rem;
}

.contact-details {
    display: inline-block;
}

.email-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    padding: 1rem 2rem;
    background: rgba(52, 152, 219, 0.1);
    border-radius: 50px;
    transition: all 0.3s ease;
}

.email-link:hover {
    background: var(--accent-color);
    color: white;
    transform: scale(1.02);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.2);
}

.email-link svg {
    transition: stroke 0.3s ease;
}

.email-link:hover svg {
    stroke: white;
}

.footer {
    padding: 2rem 0;
    text-align: center;
    color: var(--light-text);
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.creator-credits {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    opacity: 0.7;
}

.creator-credits a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.creator-credits a:hover {
    opacity: 1;
    text-decoration: underline;
}

@media (max-width: 768px) {
    .contact-card {
        padding: 2.5rem 1.5rem;
    }

    .contact-card h2 {
        font-size: 1.75rem;
    }

    .address-details {
        font-size: 1.15rem;
    }

    .email-link {
        font-size: 1.1rem;
        padding: 0.85rem 1.5rem;
    }

    .logo-img {
        height: 90px;
    }

    .header {
        padding: 2rem 0;
    }
}