/* Global Styles */
:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #34495e;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --info-color: #1abc9c;
    --break-color: #d5f5e3;
    --lunch-color: #fdebd0;
    --discussion-color: #ebdef0;
    --activity-color: #e8f8f5;
    --executive-color: #3498db;
    --business-color: #2ecc71;
    --full-color: #9b59b6;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f5f7fa;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header Styles */
header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header h2 {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 0.5rem;
}

.instructor {
    font-style: italic;
    opacity: 0.9;
}

/* Main Content Styles */
main {
    padding: 2rem 0;
}

/* Course Selector Styles */
.course-selector {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin-bottom: 2rem;
}

.course-tabs {
    display: flex;
    background-color: var(--secondary-color);
}

.course-tab {
    flex: 1;
    padding: 1rem;
    background: none;
    border: none;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.course-tab:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.course-tab.active[data-course="executive"] {
    background-color: var(--executive-color);
}

.course-tab.active[data-course="business"] {
    background-color: var(--business-color);
}

.course-tab.active[data-course="full"] {
    background-color: var(--full-color);
}

/* Course Description Styles */
.course-description-container {
    padding: 1.5rem;
}

.course-description {
    display: none;
}

.course-description.active {
    display: block;
}

.course-description h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.course-description p {
    margin-bottom: 1rem;
}

.course-description ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

/* Schedule Container Styles */
.schedule-container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    margin-bottom: 2rem;
}

.schedule {
    display: none;
    padding: 1.5rem;
}

.schedule.active {
    display: block;
}

.schedule h2 {
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
    text-align: center;
}

.schedule h3 {
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 400;
}

/* Day Selector Styles */
.day-selector {
    display: flex;
    background-color: var(--light-color);
    margin-bottom: 1.5rem;
}

.day-btn {
    flex: 1;
    padding: 0.75rem;
    background: none;
    border: none;
    color: var(--dark-color);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.day-btn:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.day-btn.active {
    background-color: var(--full-color);
    color: white;
}

/* Schedule Day Styles */
.schedule-day {
    display: none;
}

.schedule-day.active {
    display: block;
}

/* Table Styles */
.schedule-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

.schedule-table th,
.schedule-table td {
    padding: 0.75rem 1rem;
    border: 1px solid #ddd;
}

.schedule-table th {
    background-color: var(--secondary-color);
    color: white;
    text-align: left;
}

.schedule-table tr:nth-child(even) {
    background-color: #f9f9f9;
}

.schedule-table td:first-child {
    width: 30%;
    font-weight: 600;
}

/* Special Row Styles */
.break {
    background-color: var(--break-color) !important;
}

.lunch {
    background-color: var(--lunch-color) !important;
}

.discussion {
    background-color: var(--discussion-color) !important;
}

.activity {
    background-color: var(--activity-color) !important;
}

/* List Styles */
.schedule-table ul {
    margin-left: 1.5rem;
    margin-top: 0.5rem;
}

.schedule-table li {
    margin-bottom: 0.25rem;
}

/* Notes Section */
.notes {
    background-color: var(--light-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.notes h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-align: left;
}

.notes ul {
    margin-left: 2rem;
}

.notes li {
    margin-bottom: 0.5rem;
}

/* Comparison Table */
.comparison {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.comparison h2 {
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
    text-align: center;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
}

.comparison-table th,
.comparison-table td {
    padding: 0.75rem 1rem;
    border: 1px solid #ddd;
    text-align: center;
}

.comparison-table th {
    background-color: var(--secondary-color);
    color: white;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
    text-align: left;
    font-weight: 600;
}

.comparison-table th:nth-child(2) {
    background-color: var(--executive-color);
}

.comparison-table th:nth-child(3) {
    background-color: var(--business-color);
}

.comparison-table th:nth-child(4) {
    background-color: var(--full-color);
}

.comparison-table tr:nth-child(even) {
    background-color: #f9f9f9;
}

/* Footer Styles */
footer {
    background-color: var(--secondary-color);
    color: white;
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
}

/* Responsive Styles */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    header h2 {
        font-size: 1.2rem;
    }
    
    .course-tab {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .schedule-table td:first-child {
        width: 40%;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .course-tabs {
        flex-direction: column;
    }
    
    .schedule-table th,
    .schedule-table td {
        padding: 0.5rem;
        font-size: 0.85rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.5rem;
        font-size: 0.85rem;
    }
}