/* General Body and Typography */
body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    text-align: center; /* Centers the main heading and ticker box */
    color: #333; /* Default text color */
}

/* Header */
h1 {
    color: #333;
    font-size: 28px;
    margin-top: 20px; /* Adjusted for spacing */
    margin-bottom: 30px; /* Space below the heading */
}

/* Ticker Box */
.ticker-box {
    display: inline-block; /* Allows centering with text-align on body */
    padding: 10px 20px;
    background: rgb(252, 186, 3); /* Orange background */
    color: #121212; /* Dark text for contrast */
    font-size: 18px;
    font-weight: bold;
    border-radius: 8px;
    box-shadow: 0px 0px 10px rgba(252, 186, 3, 0.8);
    animation: ticker 3s infinite;
    margin: 20px auto; /* Centers the block itself */
    max-width: 800px; /* Limits width on larger screens */
}

.ticker-box a {
    text-decoration: none;
    color: #121212; /* Link color inside ticker box */
}

.ticker-box a:hover {
    text-decoration: underline;
}

/* Ticker Animation */
@keyframes ticker {
    0% { opacity: 0.5; transform: scale(0.9); }
    50% { opacity: 1; transform: scale(1); }
    100% { opacity: 0.5; transform: scale(0.9); }
}

/* Horizontal Rule */
hr {
    border: none;
    border-top: 1px solid #ddd;
    margin: 40px auto; /* Provides space above and below the line */
    max-width: 800px;
}

/* --- */

/* NEW: Course Group Styling */
.course-group {
    margin-bottom: 50px; /* Space between different course groups */
    padding: 20px 0; /* Optional: adds a bit of vertical padding around the group */
}

.course-group h2 {
    color: #0056b3; /* A nice blue for group headings */
    font-size: 2em; /* Larger font size for group headings */
    margin-bottom: 30px; /* Space below the group heading */
    text-align: center; /* Center the group heading */
}


/* Course Grid Wrapper (Flex Container) */
.course-grid-wrapper {
    display: flex; /* Enables flexbox */
    flex-wrap: wrap; /* **Crucial:** Allows items to wrap to the next line */
    justify-content: center; /* Centers items horizontally within the wrapper */
    gap: 20px; /* Provides space between items (both row and column gaps) */
    padding: 20px; /* Padding around the entire grid */
    max-width: 1200px; /* Limit the maximum width of the grid */
    margin: 0 auto; /* Center the grid on the page */
}

/* Individual Course Cards (Flex Items) */
.keep-container {
    flex: 1 1 300px; /* grow, shrink, basis */
    min-width: 280px; /* Ensure cards don't get too small */
    max-width: 400px; /* Prevent cards from becoming excessively wide */
    background: linear-gradient(to right, #444, #222); /* Dark gradient background */
    border-radius: 8px;
    border: 2px solid #FCBA03; /* Orange border */
    color: #fff; /* White text for dark background */
    padding: 20px;
    box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease-in-out, box-shadow 0.3s ease-in-out;
    overflow: hidden; /* Ensures content doesn't spill out */
    box-sizing: border-box; /* Include padding and border in the element's total width */

    display: flex;
    flex-direction: column; /* Stack content vertically within the card */
}

.keep-container:hover {
    transform: scale(1.05);
    box-shadow: 6px 6px 15px rgba(0, 0, 0, 0.3);
}

/* Inner content of course card */
.course-note {
    flex-grow: 1; /* Allows the course-note content to take up available space */
    display: flex;
    flex-direction: column;
    justify-content: space-between; /* Pushes content and "Go to Course" link to ends */
}

/* Course Titles inside cards */
.course-note h2 {
    font-size: 1.5em; /* Using relative unit for better scalability */
    color: #FCBA03; /* Orange title color */
    margin-top: 0;
    margin-bottom: 10px;
}

/* Course Description */
.course-note p {
    font-size: 0.95em;
    line-height: 1.5;
    margin-bottom: 15px;
}

/* Course List */
.course-list {
    list-style: none; /* Remove default list bullets */
    padding: 0;
    margin-top: auto; /* Pushes list to the bottom, above the link */
    margin-bottom: 15px;
}

.course-list li {
    position: relative; /* For custom bullet point */
    padding-left: 20px; /* Space for custom bullet */
    font-size: 0.85em; /* Smaller font size */
    margin-bottom: 5px; /* Space between list items */
}

.course-list li::before {
    content: '•'; /* Custom bullet point */
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 16px;
    color: lightblue; /* Custom bullet color */
}

.course-list li:last-child {
    margin-bottom: 0; /* No bottom margin for the last list item */
}

/* Highlighted Status */
.highlight {
    font-weight: bold;
    color: white; /* Text color for highlight */
    background-color: #28a745; /* Green background for ongoing */
    padding: 2px 6px;
    border-radius: 4px;
    display: inline-block; /* Ensures padding/background applies correctly */
    margin-left: 5px; /* Little space from the year */
}

/* Course Links/Buttons */
.course-note a {
    display: inline-block; /* Makes the link behave like a block element for padding */
    background-color: #007bff; /* Blue button background */
    color: white;
    padding: 10px 15px;
    text-align: center;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
    margin-top: 15px; /* Space above the button */
    align-self: flex-start; /* Aligns the link to the start of the card's main axis */
}

.course-note a:hover {
    background-color: #0056b3; /* Darker blue on hover */
}

/* --- */

/* Responsive Design Adjustments */

/* For screens up to 1024px (laptops, large tablets) */
@media (max-width: 1024px) {
    .course-grid-wrapper {
        padding: 15px;
        gap: 15px; /* Adjusted gap for smaller screens */
    }
    .keep-container {
        flex-basis: calc(50% - 15px);
        max-width: calc(50% - 15px);
    }
}

/* For screens up to 768px (tablets in portrait) */
@media (max-width: 768px) {
    .course-grid-wrapper {
        justify-content: center;
    }
    .keep-container {
        flex-basis: 90%;
        max-width: 90%;
    }
    .ticker-box {
        margin: 15px;
        padding: 8px 15px;
    }
    .course-group h2 {
        font-size: 1.8em; /* Slightly smaller on tablets */
    }
}

/* For screens up to 480px (mobile phones) */
@media (max-width: 480px) {
    .keep-container {
        flex-basis: calc(100% - 40px); /* Account for 20px padding on each side of wrapper */
        max-width: calc(100% - 40px);
        min-width: unset;
    }
    .course-group h2 {
        font-size: 1.5em; /* Smaller on mobile */
    }
}