/* COS330 Website Styles */

:root {
    --princeton-orange: #E87722;
    --princeton-orange-light: #f4a261;
    --princeton-orange-dark: #c5661a;
    --text-primary: #333;
    --text-secondary: #666;
    --bg-light: #f8f9fa;
    --border-color: #dee2e6;
}

/* New Badge */
.new-badge {
    display: inline-block;
    background-color: #dc3545;
    color: white;
    font-size: 0.6rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 8px;
    margin-left: 4px;
    vertical-align: top;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Calendar Styles */
.calendar-section {
    margin-top: 3rem;
}

.calendar-section h2 {
    color: var(--princeton-orange);
    margin-bottom: 2rem;
    font-weight: 600;
}

#office-hours-calendar {
    margin: 2rem 0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.calendar-note {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-secondary);
}

/* FullCalendar customizations */
.fc-theme-standard .fc-header-toolbar {
    background-color: var(--bg-light);
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.fc-button-primary {
    background-color: var(--princeton-orange) !important;
    border-color: var(--princeton-orange) !important;
    color: white !important;
}

.fc-button-primary:not(:disabled):active,
.fc-button-primary:not(:disabled).fc-button-active {
    background-color: var(--princeton-orange-dark) !important;
    border-color: var(--princeton-orange-dark) !important;
}

.fc-button-primary:hover {
    background-color: var(--princeton-orange-light) !important;
    border-color: var(--princeton-orange-light) !important;
}

.fc-col-header-cell {
    background-color: var(--bg-light);
    font-weight: 600;
    color: var(--text-primary);
}

.fc-timegrid-slot {
    border-color: #f0f0f0;
}

.office-hours-event {
    border-radius: 4px !important;
    font-size: 0.85rem;
    font-weight: 500;
}

.fc-event-title {
    font-weight: 600;
    margin-bottom: 2px;
}

.fc-event-location {
    font-size: 0.75rem;
    opacity: 0.9;
    margin-top: 2px;
    display: flex;
    align-items: center;
    gap: 2px;
}

.location-icon {
    font-size: 0.8rem;
    margin-right: 4px;
    color: rgba(255, 255, 255, 0.8);
}

.fc-event-title-container {
    line-height: 1.2;
}

.fc-now-indicator-line {
    border-color: var(--princeton-orange);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    #office-hours-calendar {
        margin: 1rem 0;
    }
    
    .fc-header-toolbar {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .fc-toolbar-chunk {
        margin: 0.25rem 0;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: #fff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-feature-settings: 'liga' 1, 'kern' 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navigation Styles */
.modern-navbar {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%) !important;
    border-bottom: 2px solid var(--princeton-orange) !important;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.navbar-brand-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.navbar-brand {
    color: var(--princeton-orange) !important;
    text-decoration: none !important;
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.course-code {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.course-title {
    font-size: 0.9rem;
    color: var(--text-secondary) !important;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.semester-text {
    color: var(--text-secondary) !important;
    font-size: 0.9rem;
    font-weight: 400;
    margin-left: 0.5rem;
}

.navbar-nav .nav-link {
    color: var(--text-primary) !important;
    font-weight: 500;
    padding: 0.75rem 1.25rem !important;
    transition: all 0.3s ease;
    border-radius: 25px;
    margin: 0 4px;
    position: relative;
    overflow: hidden;
}

.navbar-nav .nav-link:hover {
    color: white !important;
    background: linear-gradient(135deg, var(--princeton-orange), var(--princeton-orange-dark));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(232, 119, 34, 0.3);
    text-decoration: none !important;
}

.navbar-nav .nav-link.active {
    color: white !important;
    background: linear-gradient(135deg, var(--princeton-orange), var(--princeton-orange-dark));
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(232, 119, 34, 0.4);
}

/* Main Content */
main {
    flex: 1;
}

.content-wrapper {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    margin-top: 1.5rem;
    letter-spacing: -0.025em;
}

h1 {
    color: var(--princeton-orange);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--princeton-orange);
}

h2 {
    color: var(--princeton-orange-dark);
    font-size: 1.8rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
}

/* Links */
a {
    color: var(--princeton-orange);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--princeton-orange-dark);
    text-decoration: underline;
}

/* Lists */
ul, ol {
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Tables */
table {
    margin-bottom: 1.5rem;
}

.table {
    border: 1px solid var(--border-color);
}

.table th {
    background-color: var(--bg-light);
    color: var(--text-primary);
    font-weight: 600;
    border-color: var(--border-color);
}

.table td {
    border-color: var(--border-color);
}

/* Code and Pre */
code {
    background-color: var(--bg-light);
    color: var(--princeton-orange-dark);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.9em;
}

pre {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    overflow-x: auto;
}

pre code {
    background: none;
    color: var(--text-primary);
    padding: 0;
}

/* Blockquotes */
blockquote {
    border-left: 4px solid var(--princeton-orange);
    padding-left: 1rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--text-secondary);
    background-color: rgba(232, 119, 34, 0.05);
    padding: 1rem 1rem 1rem 1.5rem;
    border-radius: 0 4px 4px 0;
}

/* Cards and Special Content */
.info-section {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.info-section h3 {
    margin-top: 0;
    color: var(--princeton-orange);
}

/* Course Information Grid */
.course-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.course-info-item {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.course-info-item h4 {
    color: var(--princeton-orange);
    margin-top: 0;
    margin-bottom: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .content-wrapper {
        padding: 1rem;
        margin: 0 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .navbar-nav .nav-link {
        padding: 0.5rem 1rem !important;
    }
}

/* Print Styles */
@media print {
    .navbar, footer {
        display: none !important;
    }
    
    .content-wrapper {
        box-shadow: none;
        border: none;
        padding: 0;
    }
    
    a {
        color: var(--text-primary) !important;
        text-decoration: none !important;
    }
}

/* Course Hero Section */
.course-hero {
    padding: 1.5rem 0;
    margin: 1.5rem 0;
    border-left: 4px solid var(--princeton-orange);
    padding-left: 1.5rem;
}

.course-description {
    font-family: 'Crimson Text', Georgia, serif;
    font-size: 1.15rem;
    line-height: 1.65;
    color: var(--text-primary);
    max-width: 900px;
    margin: 0;
    font-weight: 400;
    font-style: italic;
}

/* Staff Grid */
.staff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.staff-member {
    background: white;
    border-radius: 8px;
    padding: 0.75rem;
    text-align: left;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(232, 119, 34, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.staff-member:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(232, 119, 34, 0.12);
    border-color: var(--princeton-orange);
}


.staff-info h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
    margin-top: 0;
    font-weight: 600;
}

.staff-title {
    color: var(--princeton-orange);
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.3rem;
}

.staff-contact {
    color: var(--text-secondary);
    font-size: 0.7rem;
    font-family: 'Courier New', monospace;
    margin-bottom: 0;
    word-break: break-word;
}

/* Enhanced List Styles */
ul:not(.navbar-nav) {
    list-style: none;
    padding-left: 0;
}

ul:not(.navbar-nav) li {
    position: relative;
    padding: 0.75rem 0;
    padding-left: 2rem;
    border-bottom: 1px solid rgba(232, 119, 34, 0.1);
    transition: all 0.3s ease;
}

ul:not(.navbar-nav) li:last-child {
    border-bottom: none;
}

ul:not(.navbar-nav) li:hover {
    background-color: rgba(232, 119, 34, 0.05);
    padding-left: 2.5rem;
}

ul:not(.navbar-nav) li::before {
    content: '▶';
    color: var(--princeton-orange);
    font-weight: bold;
    position: absolute;
    left: 0.5rem;
    transition: all 0.3s ease;
}

ul:not(.navbar-nav) li:hover::before {
    transform: translateX(0.2rem);
    color: var(--princeton-orange-dark);
}

/* Lecture Times Special Styling */
.lecture-info {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-left: 4px solid var(--princeton-orange);
    padding: 1.5rem;
    border-radius: 0 8px 8px 0;
    margin: 1.5rem 0;
}

.lecture-info ul li {
    border-bottom: 1px solid rgba(232, 119, 34, 0.2);
    background: transparent;
}

/* Modern Lecture Layout */
.lecture-module {
    margin: 0.75rem 0;
}

.module-header {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0;
    border-bottom: 2px solid var(--princeton-orange);
    margin-bottom: 0.4rem;
}

.module-header .module-icon {
    width: 1.6rem;
    height: 1.6rem;
    object-fit: contain;
}

.module-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.6rem;
    font-weight: 600;
}

.lectures-grid,
.precepts-grid,
.assignments-grid {
    display: grid;
    gap: 0.3rem;
}

/* Exam Cards Layout */
.exams-container {
    display: grid;
    gap: 2rem;
    margin: 2rem 0;
}

.exam-card {
    background: white;
    border: 1px solid rgba(232, 119, 34, 0.1);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    overflow: hidden;
}

.exam-card:hover {
    border-color: var(--princeton-orange);
    box-shadow: 0 4px 16px rgba(232, 119, 34, 0.1);
    transform: translateY(-2px);
}

.midterm-exam {
    border-left: 4px solid var(--princeton-orange);
}

.final-exam {
    border-left: 4px solid var(--princeton-orange-dark);
}

.exam-header {
    background: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid rgba(232, 119, 34, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.exam-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.3rem;
    font-weight: 600;
}

.exam-type {
    background: var(--princeton-orange);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.exam-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
}

.exam-detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detail-label {
    font-weight: 600;
    color: var(--princeton-orange);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.detail-value {
    color: var(--text-primary);
    font-size: 0.95rem;
    line-height: 1.4;
}

.exam-actions {
    background: var(--bg-light);
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(232, 119, 34, 0.1);
    display: flex;
    gap: 0.75rem;
    justify-content: flex-start;
}

.lecture-card {
    display: grid;
    grid-template-columns: 160px 1fr auto;
    align-items: stretch;
    gap: 0;
    padding: 0;
    background: white;
    border: 1px solid rgba(232, 119, 34, 0.1);
    border-radius: 3px;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
    overflow: hidden;
}

.lecture-card:hover {
    border-color: var(--princeton-orange);
    box-shadow: 0 2px 8px rgba(232, 119, 34, 0.1);
    transform: translateY(-1px);
}

.lecture-card.midterm {
    background: linear-gradient(135deg, #fff3e0 0%, #ffffff 100%);
    border-color: var(--princeton-orange);
}

.lecture-info {
    background: var(--bg-light);
    padding: 0.4rem 0.6rem;
    margin: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.1rem;
    font-size: 0.8rem;
    line-height: 1.2;
    border-right: 1px solid rgba(232, 119, 34, 0.1);
    height: 100%;
    box-sizing: border-box;
}

.lecture-number {
    font-weight: 600;
    color: var(--princeton-orange);
    white-space: nowrap;
    font-size: 0.8rem;
}

.lecture-date {
    color: var(--text-secondary);
    white-space: nowrap;
    font-size: 0.7rem;
}

/* Assignment specific styling for larger date text */
.assignments-grid .lecture-date {
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
}

.assignments-grid .lecture-info {
    justify-content: center;
    align-items: center;
}

.lecture-title {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.9rem;
    line-height: 1.2;
    padding: 0.4rem 0.6rem;
    margin: 0;
    display: flex;
    align-items: center;
    height: 100%;
    box-sizing: border-box;
}

.lecture-actions {
    text-align: right;
    padding: 0.4rem 0.6rem;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 100%;
    box-sizing: border-box;
    gap: 0.5rem;
}

.slides-placeholder {
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-style: italic;
}

.slides-link {
    color: var(--princeton-orange);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--princeton-orange);
    border-radius: 3px;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.slides-link:hover {
    background: var(--princeton-orange);
    color: white;
    text-decoration: none;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .navbar-brand-section {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .course-hero {
        padding: 1rem 0;
        padding-left: 1rem;
    }
    
    .course-description {
        font-size: 1.05rem;
    }
    
    .staff-grid {
        grid-template-columns: 1fr;
    }
    
    .semester-text {
        display: block;
        margin-left: 0;
        margin-top: 0.2rem;
        font-size: 0.8rem;
    }
    
    .lecture-card {
        grid-template-columns: 1fr;
        gap: 0.75rem;
        text-align: left;
    }
    
    .lecture-info {
        order: 1;
    }
    
    .lecture-title {
        order: 2;
        font-size: 1.1rem;
        margin: 0.5rem 0;
    }
    
    .lecture-actions {
        order: 3;
        text-align: left;
    }
    
    .module-header h3 {
        font-size: 1.2rem;
    }
    
    .exam-details {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 1rem;
    }
    
    .exam-actions {
        flex-direction: column;
        gap: 0.5rem;
        padding: 1rem;
    }
    
    .exam-header {
        padding: 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* Footer */
footer {
    background-color: var(--bg-light) !important;
    border-top: 1px solid var(--border-color) !important;
}