/* General Styles */
html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background-color: #f8f8f8;
    overflow-x: hidden; /* Prevents horizontal scrollbar for the entire page */
    overflow-y: auto;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    color: #333;
    box-sizing: border-box;
}

/* Header Styles */
.blue-container {
    width: 100%;
    background-color: #00408f; /* Deep blue header */
    padding: 10px;
    display: flex;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    color: white;
}

.left-aligned {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
}

.favicon-logo {
    width: 50px;
    height: auto;
}

.titles {
    display: flex;
    flex-direction: column;
}

.college-name {
    font-size: 16px;
    margin: 0;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.4);
}

.site-title {
    font-size: 14px;
    margin: 0;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Content Area - Label & Button Section */
.content-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 80vh; /* Adjust as needed */
    width: 100%;
    text-align: center;
}

.label-button-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
}

.label-button-container h3 {
    background-color: #e3f2fd;
    color: #00408f;
    padding: 6px 12px;
    font-size: 12px;
    text-align: center;
    border-radius: 5px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    margin-bottom: 8px;
}

.button-row {
    display: flex;
    justify-content: center;
    gap: 10px;
}

/* General Buttons (for content area, not secondary nav) */
button {
    background-color: #00408f;
    color: white;
    border: none;
    padding: 8px 10px;
    border-radius: 5px;
    font-size: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #1E88E5;
}

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

/* --- Secondary Menu Styles (Default/Laptop View - Now Consistent with Mobile Layout Principles) --- */
.button-container {
    /* Lighter blue "Liquid Glass" effect, harmonizing with header */
    background-image: linear-gradient(135deg, rgba(200, 230, 255, 0.9), rgba(170, 210, 240, 0.8));
    backdrop-filter: blur(15px) saturate(1.8);
    -webkit-backdrop-filter: blur(15px) saturate(1.8);
    border: 1px solid rgba(150, 190, 220, 0.7);
    
    display: flex; /* Use flexbox */
    justify-content: center; /* Center the group of buttons horizontally on the screen */
    align-items: stretch; /* CRITICAL for equal height: stretch items to fill container height */
    padding: 10px 15px; /* Decent padding on sides for the whole container */
    flex-wrap: nowrap; /* CRITICAL: Force all buttons onto a single line */
    gap: 10px; /* Decent space BETWEEN buttons */
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    text-align: center;
    overflow-x: hidden; /* Hide horizontal scrollbar always */
    -webkit-overflow-scrolling: touch;
}

.b-nav-button {
    background-color: rgba(12, 129, 224, 0.2); /* Your specified blue hue with transparency */
    color: #003060; /* Darker, richer blue text for good contrast */
    border: 1px solid rgba(0, 40, 80, 0.15); /* Subtle blue border */
    padding: 7px 8px; /* Adjusted padding for a compact look with internal space */
    font-size: 0.75em; /* Default font size for all screens (will be overridden smaller by media queries) */
    font-weight: bold;
    cursor: pointer;
    border-radius: 5px;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
    text-decoration: none;
    
    display: flex; /* Make the button itself a flex container */
    flex-direction: column; /* Stack wrapped text vertically */
    align-items: center; /* Center text lines horizontally within the button */
    justify-content: center; /* Center text vertically within the button */

    white-space: normal; /* Allow text to wrap within the button (for all screens now) */
    flex-grow: 1; /* Allow buttons to grow to fill space uniformly (within the limited space provided by the gap and padding) */
    flex-basis: 0; /* Ensures equal width distribution when growing */
    min-width: 0; /* Ensures buttons can shrink if needed without breaking */
    text-overflow: clip; /* Ensure no ellipsis, clip if content is too large (shouldn't happen with proper padding/font) */
    overflow: hidden; /* Hide any content that still overflows within the button */
    height: auto; /* Allow height to adjust to wrapped content (but main container stretches them to be equal height) */
    line-height: 1.1; /* Adjust line-height if text seems too crammed vertically */
}

/* Hover effect for secondary menu buttons */
.nav-button:hover {
    background-color: rgb(17, 91, 181); /* A very light tint of the main blue on hover */
    border-color: rgba(0, 64, 143, 0.3); /* More prominent border on hover */
    color: #001530; /* Even darker blue on hover */
}
.active-nav-button {
            background-color: #0056b3;
            color: white;
            border-bottom: 3px solid #f0f0f0;
        }
footer {
    width: 100%;
    background-color: #00408f;
    color: white;
    text-align: center;
    padding: 3px 0;
    font-size: 10px;
    height: 30px;
    /* Removed the fixed positioning properties */
    /* position: fixed; */
    /* bottom: 0; */
    /* left: 0; */
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    margin-top: auto; /* This pushes the footer to the bottom of the flex container */
}

.social-logo {
    width: 18px;
    height: 18px;
    margin: 0 4px;
    vertical-align: middle;
}

/* --- Responsive Styles (Media Queries - UNCHANGED) --- */

/* For screens up to 768px wide (medium tablets, larger phones in landscape) */
@media only screen and (max-width: 768px) {
    body {
        font-size: 14px;
    }
    .favicon-logo {
        width: 40px;
    }
    .college-name {
        font-size: 16px;
    }
    .site-title {
        font-size: 14px;
    }
    .label-button-container h3 {
        font-size: 16px;
    }
    button { /* General buttons on content area */
        font-size: 12px;
        padding: 10px 15px;
    }
    .button-row {
        gap: 15px;
    }

    /* Secondary menu specific adjustments for tablets/larger phones */
    .button-container {
        padding: 10px 10px; /* Adjust container padding slightly */
        gap: 8px; /* Adjust gap between buttons */
    }

    .nav-button {
        padding: 7px 6px; /* Slightly adjust padding for this range */
        font-size: 0.7em; /* Slightly smaller font for tablets */
    }
}

/* For screens up to 600px wide (most phones in landscape, smaller tablets) */
@media only screen and (max-width: 600px) {
    .button-container {
        padding: 8px 2px; /* Reduce container horizontal padding further */
        gap: 4px; /* Reduce gap between buttons */
    }

    .nav-button {
        padding: 7px 5px; /* Adjust padding for phone landscape */
        font-size: 0.65em; /* Smaller font for phone landscape */
    }
}

/* For even smaller screens (typical phone portrait, e.g., iPhone SE, older Androids) */
@media only screen and (max-width: 480px) {
    body {
        font-size: 13px; /* Overall base font slightly smaller */
    }
    .favicon-logo {
        width: 25px;
    }
    .college-name {
        font-size: 14px;
    }
    .site-title {
        font-size: 12px;
    }
    .label-button-container h3 {
        font-size: 12px;
        padding: 5px 8px;
    }
    button { /* General buttons on content area */
        font-size: 11px;
        padding: 7px 10px;
    }
    .button-row {
        gap: 10px;
    }

    /* Secondary menu specific overrides for very small screens */
    .button-container {
        padding: 5px 1px; /* Very minimal horizontal padding on the container */
        gap: 2px; /* Minimal gap between buttons for tight fit */
    }
    .nav-button {
        padding: 5px 4px; /* Ensure adequate internal padding even on smallest screens */
        font-size: 0.6em; /* Smallest font for best fit */
        border-radius: 3px;
    }
}