.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: #000;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 2px solid #000080;
    z-index: 999;
    /* Optional subtle glow for depth */
    box-shadow: 0 2px 8px rgba(0, 0, 128, 0.08);
}

.topbar .logo {
    color: #12dd19;
    font-size: 1.8em;
    font-weight: 900;
    letter-spacing: 2px;
    text-shadow: 0 0 6px rgba(0, 128, 128, 0.4); /* subtle glow */
}

.topbar nav {
    display: flex;
    align-items: center;
}

.topbar nav a {
    color: #4169e1; /* royal blue */
    margin: 0 16px;
    font-weight: bold;
    font-size: 1.1em;
    text-decoration: underline;
    transition: color 0.2s ease, text-shadow 0.2s ease;
}

.topbar nav a:hover {
    color: #1e90ff; /* dodger blue */
    text-shadow: 0 0 8px rgba(30, 144, 255, 0.6);
}

.topbar nav a.active {
    color: #00ff66;
    text-decoration: none;
}

body {
    min-height: 100vh;                    /* fill at least the viewport */
    margin: 0;
    background: linear-gradient(
        to bottom,
        #000000,
        #067b00b8
    );
    background-repeat: no-repeat;         /* usually not needed, but safe */
    background-attachment: fixed;         /* optional – makes it stay while scrolling */

    color: #fff;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

.container {
    max-width: 800px;
    margin: 80px auto 0;
    padding: 20px;
    text-align: center;
}

.container h1 {
    color: #fff;
    font-size: 2.5em;
    margin-bottom: 30px;
    text-shadow: 0 0 10px rgba(0, 0, 128, 0.5);
}

.container h3 {
    color: #000080;
    font-size: 1.8em;
    margin: 40px 0 20px;
}

.container p {
    color: #fff;
    line-height: 1.6;
    font-size: 1.1em;
    margin: 20px 0;
}

.container strong {
    color: #4169e1;
    font-weight: bold;
}

.container em {
    color: #0000cd;
    font-style: italic;
}

.container ul {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.container li {
    color: #fff;
    margin: 10px 0;
    padding: 5px 0;
    border-left: 3px solid #000080;
    padding-left: 15px;
    text-align: left;
}

.container .note {
    font-style: italic;
    color: #ccc;
    font-size: 1.2em;
    margin-top: 40px;
    text-align: center;
}

.container a {
    color: #4169e1;
    text-decoration: underline;
}

.container a:hover {
    color: #1e90ff;
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
    .topbar {
        padding: 12px 16px;
        flex-wrap: wrap;
        height: auto;
    }
    
    .topbar .logo {
        font-size: 1.4em;
        margin-bottom: 8px;
        width: 100%;
        text-align: center;
    }
    
    .topbar nav {
        flex-wrap: wrap;
        justify-content: center;
        width: 100%;
    }
    
    .topbar nav a {
        margin: 4px 8px;
        font-size: 0.9em;
        padding: 4px 8px;
        border-radius: 4px;
        background: rgba(65, 105, 225, 0.1);
    }
    
    .topbar nav a:hover {
        background: rgba(65, 105, 225, 0.2);
    }
    
    .container {
        margin: 120px auto 0;
        padding: 15px;
        max-width: 95%;
    }
    
    .container h1 {
        font-size: 2em;
        margin-bottom: 20px;
    }
    
    .container h3 {
        font-size: 1.5em;
        margin: 30px 0 15px;
    }
    
    .container p {
        font-size: 1em;
        margin: 15px 0;
    }
    
    .container li {
        margin: 8px 0;
        padding-left: 10px;
        font-size: 0.95em;
    }
}

@media (max-width: 480px) {
    .topbar {
        padding: 10px 12px;
    }
    
    .topbar .logo {
        font-size: 1.2em;
    }
    
    .topbar nav a {
        margin: 2px 4px;
        font-size: 0.8em;
        padding: 3px 6px;
    }
    
    .container {
        margin: 100px auto 0;
        padding: 10px;
    }
    
    .container h1 {
        font-size: 1.8em;
    }
    
    .container h3 {
        font-size: 1.3em;
    }
}

/* Form styling for mobile */
input[type="email"], input[type="text"], input[type="password"], textarea, button {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
}

input[type="email"], input[type="text"], input[type="password"], textarea {
    font-size: 16px; /* Prevents zoom on iOS */
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #555;
    background: #333;
    color: #fff;
    margin: 8px 0;
}

button {
    font-size: 16px;
    padding: 15px 20px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    margin: 10px 0;
    background: #4169e1;
    color: #fff;
    font-weight: bold;
    min-height: 48px; /* Minimum touch target size */
    -webkit-tap-highlight-color: transparent;
}

button:hover {
    background: #1e90ff;
}

button:active {
    transform: scale(0.98);
}

button:disabled {
    background: #666;
    cursor: not-allowed;
    transform: none;
}

/* Mobile-specific adjustments */
@media (max-width: 768px) {
    input[type="email"], input[type="text"], input[type="password"], textarea {
        font-size: 16px;
        padding: 15px;
        margin: 10px 0;
    }
    
    button {
        padding: 18px 24px;
        margin: 12px 0;
        font-size: 18px;
    }
}

/* Improve touch targets */
#currentUser {
    font-size: 0.9em;
    margin: 0 10px;
    word-break: break-all;
}

/* Mobile modal improvements */
@media (max-width: 768px) {
    div[style*="position: fixed"][style*="background: rgba"] {
        padding: 15px !important;
        width: 90% !important;
        max-width: 90% !important;
    }
    
    div[style*="transform: translate(-50%, -50%)"] {
        width: 85% !important;
        max-width: 85% !important;
    }
}