/* Global Styles */
body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f9f9f9;
    color: #223035;
    line-height: 1.6;
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Headings */
h1, h2, h3 {
    color: #3B484B;
    line-height: 1.2;
    margin: 0.5em 0;
}

h1 {
    font-size: 2.2rem;
    border-bottom: 3px solid #E3A34F;
    padding-bottom: 5px;
}

h2 {
    font-size: 1.6rem;
    color: #204C62;
}

h3 {
    font-size: 1.3rem;
    color: #223035;
}

/* Navigation */
nav {
    background-color: #3B484B;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    color: #F4D389;
    padding: 12px 20px;
    display: block;
    font-size: 1rem;
}

nav ul li a:hover {
    background-color: #204C62;
}

/* Header with Logo */
.header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.logo {
    max-width: 140px;
    height: auto;
}

.title-text h1 {
    font-size: 2rem;
}

.title-text h2 {
    font-size: 1.2rem;
    font-weight: bold;
    color: #223035;
}

/* Course Info Grid */
.course-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.info-box {
    background: #ECF0F1;
    padding: 15px;
    border-radius: 6px;
}

.book-cover {
    width: 100px;
    height: auto;
    margin: 10px 0;
}

/* Buttons */
.button {
    display: inline-block;
    background-color: #E3A34F;
    color: #223035;
    padding: 8px 15px;
    border-radius: 5px;
    text-decoration: none;
    font-size: 1rem;
    font-weight: bold;
}

.button:hover {
    background-color: #F4D389;
}

/* Sections */
.section {
    margin: 40px 0;
}

.section-header {
    font-size: 1.5rem;
    border-bottom: 2px solid #BCBEC0;
    padding-bottom: 5px;
    margin-bottom: 15px;
    color: #204C62;
}

.section-content {
    background-color: #ECF0F1;
    padding: 15px;
    border-radius: 6px;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
    overflow-x: auto;
    display: block;
    font-size: 12px;
}

th, td {
    padding: 1px;
    border: 1px solid #ddd;
    text-align: left;
}

th {
    background-color: #204C62;
    color: #fff;
}

/* Footer */
footer {
    background-color: #3B484B;
    color: #F4D389;
    text-align: center;
    padding: 10px;
    margin-top: 40px;
}

/* Responsive Adjustments */
@media (max-width: 600px) {
    h1 { font-size: 1.6rem; }
    .title-text h2 { font-size: 1rem; }
    nav ul li a { padding: 10px; font-size: 0.9rem; }
}