/* General Styles */
:root {
    --primary-color: #333;
    --secondary-color: #555;
    --accent-color: #A0522D; /* Sienna - a warm, academic tone */
    --background-color: #f4f4f9;
    --card-background: #fff;
    --border-color: #ddd;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--primary-color);
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
    overflow: hidden;
}

/* Header and Navigation */
header {
    background: var(--primary-color);
    color: #fff;
    padding: 30px 0;
    text-align: center;
    border-bottom: 5px solid var(--accent-color);
}

header h1 {
    font-family: 'Playfair Display', serif;
    margin: 0 0 10px 0;
    font-size: 2.5em;
    line-height: 1.2;
}

.subtitle {
    font-size: 1.2em;
    margin-bottom: 15px;
    font-style: italic;
    color: #ccc;
}

.course-info {
    display: flex;
    justify-content: center;
    gap: 20px;
    font-size: 0.9em;
    color: #ccc;
}

nav {
    background: var(--secondary-color);
    color: #fff;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav a {
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    padding: 15px 20px;
    display: inline-block;
    transition: background-color 0.3s;
}

nav a:hover {
    background-color: var(--accent-color);
}

/* Main Content */
main {
    padding: 20px 0;
}

section {
    margin-bottom: 40px;
    padding: 20px;
    background: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

h2 {
    font-family: 'Playfair Display', serif;
    color: var(--accent-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 10px;
    margin-top: 0;
    margin-bottom: 20px;
}

/* Schedule Section */
#schedule {
    background: none;
    box-shadow: none;
    padding: 0;
}

.phase {
    margin-bottom: 40px;
    padding: 20px;
    background: var(--card-background);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.phase h3 {
    font-family: 'Playfair Display', serif;
    color: var(--primary-color);
    font-size: 1.8em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-top: 0;
}

.focus {
    font-style: italic;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

.week {
    border-left: 3px solid var(--accent-color);
    padding-left: 15px;
    margin-bottom: 25px;
}

.week h4 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 5px;
    font-size: 1.3em;
}

.week p {
    margin: 5px 0;
}

.week strong {
    color: var(--accent-color);
}

.week.special {
    background-color: #fff8f4; /* Light background for special sessions */
    border-left-color: #ffc107; /* Yellow accent for special sessions */
    padding: 15px;
    border-radius: 0 5px 5px 0;
}

.resources {
    margin-top: 10px;
    padding: 10px;
    background-color: #f9f9f9;
    border-radius: 4px;
    font-size: 0.9em;
}

/* Readings List */
.reading-list ul {
    list-style: disc;
    padding-left: 20px;
}

.reading-list li {
    margin-bottom: 8px;
}

/* Footer */
footer {
    background: var(--primary-color);
    color: #fff;
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    font-size: 0.9em;
}

footer p {
    margin: 5px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }

    .course-info {
        flex-direction: column;
        gap: 5px;
    }

    nav a {
        padding: 10px 15px;
        font-size: 0.9em;
    }

    .container {
        width: 95%;
    }
}