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

/* Body and Container */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #1e3a8a 0%, #0ea5e9 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 40px;
}

/* Typography */
h1 {
    color: #0f172a;
    margin-bottom: 20px;
    font-size: 2em;
}

h2 {
    color: #333;
    margin-top: 40px;
    margin-bottom: 20px;
    font-size: 1.5em;
}

/* Tabs Navigation */
.tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 30px;
    border-bottom: 2px solid #e2e8f0;
}

.tab {
    padding: 12px 24px;
    text-decoration: none;
    color: #64748b;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all 0.2s;
}

.tab:hover {
    color: #0f172a;
    background: #f8f9fa;
    text-decoration: none;
}

.tab.active {
    color: #0f172a;
    border-bottom-color: #0f172a;
}

/* Links */
a {
    color: #0f172a;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

a:hover {
    color: #475569;
    text-decoration: underline;
}

/* Under Construction Message */
.under-construction {
    text-align: center;
    padding: 60px 20px;
    background: #f8f9fa;
    border-radius: 8px;
    margin-top: 40px;
}

.under-construction h2 {
    margin-top: 0;
    margin-bottom: 10px;
    color: #0f172a;
}

.under-construction p {
    color: #64748b;
    font-size: 16px;
}

/* Guest Message */
.guest-message {
    text-align: center;
    padding: 60px 20px;
}

.guest-message h1 {
    margin-bottom: 20px;
}

/* Mobile Responsive Base Styles */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 16px;
        border-radius: 8px;
        box-sizing: border-box;
    }

    h1 {
        font-size: 1.5em;
        margin-bottom: 15px;
    }

    h2 {
        font-size: 1.2em;
    }

    .tabs {
        margin-bottom: 20px;
    }

    .tab {
        padding: 10px 16px;
        font-size: 14px;
    }
}