/* Variables */
:root {
    --primary-color: #ff5722;
    --secondary-color: #e64a19;
    --accent-color: #2196f3;
    --light-color: #ecf0f1;
    --dark-color: #263238;
    --success-color: #4caf50;
    --warning-color: #ffc107;
    --info-color: #03a9f4;
    --docente-color: #8e44ad;
    --instructor-color: #2980b9;
    --period1-color: #27ae60;
    --period2-color: #f39c12;
    --period3-color: #e74c3c;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Reset and Base Styles */
* {
    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;
}

/* Header Styles */
header {
    background-color: var(--accent-color);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.titulo {
    text-align: center;
}


.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo i {
    font-size: 2rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-container {
    display: flex;
    align-items: center;
    background-color: white;
    border-radius: 4px;
    overflow: hidden;
}

#searchInput {
    padding: 0.5rem;
    border: none;
    outline: none;
    width: 200px;
}

#searchBtn {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.5rem;
    cursor: pointer;
}

.btn {
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background-color: var(--dark-color);
}

/* Filter Panel */
.filter-panel {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 1rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    display: block; /* o flex, grid, según lo que uses */
}

.filter-panel h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 600;
    font-size: 0.9rem;
}

.filter-group select {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
    min-width: 150px;
}

/* Main Content */
main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.curriculum-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.period-section {
    margin-bottom: 2rem;
}

.period-header {
    background-color: var(--dark-color);
    color: white;
    padding: 1rem;
    border-radius: 8px 8px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.period-header h2 {
    font-size: 1.2rem;
    margin: 0;
}

.period-header .period-dates {
    font-size: 0.9rem;
    opacity: 0.9;
}

.period-content {
    background-color: white;
    border-radius: 0 0 8px 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
    padding: 1rem;
}

.course-card {
    background-color: white;
    border-radius: 8px;
    padding: 1rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-height: 180px;
    position: relative;
    overflow: hidden;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
}

.course-card.period-1 {
    border-top: 4px solid var(--period1-color);
}

.course-card.period-2 {
    border-top: 4px solid var(--period2-color);
}

.course-card.period-3 {
    border-top: 4px solid var(--period3-color);
}

.course-card.docente {
    border-left: 4px solid var(--docente-color);
}

.course-card.instructor {
    border-left: 4px solid var(--instructor-color);
}

.course-week {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background-color: var(--dark-color);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
}

.course-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--dark-color);
    margin-top: 0.5rem;
}

.course-code {
    font-size: 0.8rem;
    color: #666;
}

.course-details {
    margin-top: auto;
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.course-grade {
    display: inline-block;
    background-color: var(--info-color);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    margin-right: 0.5rem;
}

.course-role {
    display: inline-block;
    background-color: var(--docente-color);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
}

.course-role.instructor {
    background-color: var(--instructor-color);
}

/* List View */
.list-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.period-section-list {
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.period-header-list {
    background-color: var(--dark-color);
    color: white;
    padding: 0.75rem 1rem;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.period-courses {
    padding: 0;
}

.course-item {
    display: grid;
    grid-template-columns: 80px 1fr 100px 120px;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #eee;
    cursor: pointer;
    transition: var(--transition);
}

.course-item:last-child {
    border-bottom: none;
}

.course-item:hover {
    background-color: #f9f9f9;
}

.course-item-week {
    font-weight: 600;
    text-align: center;
}

.course-item-title {
    font-weight: 500;
}

.course-item-grade {
    text-align: center;
}

.course-item-role {
    text-align: center;
}

.course-item.period-1 {
    border-left: 4px solid var(--period1-color);
}

.course-item.period-2 {
    border-left: 4px solid var(--period2-color);
}

.course-item.period-3 {
    border-left: 4px solid var(--period3-color);
}

.course-item.docente .course-item-role {
    color: var(--docente-color);
}

.course-item.instructor .course-item-role {
    color: var(--instructor-color);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    overflow: auto;
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
    max-width: 600px;
    width: 90%;
    animation: modalFadeIn 0.3s;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

.close:hover {
    color: var(--dark-color);
}

.modal h2 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    border-bottom: 2px solid #eee;
    padding-bottom: 0.5rem;
}

.modal-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.modal-info p {
    margin-bottom: 0.5rem;
}

.modal-description h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 2rem 0;
    margin-top: 3rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-info {
    flex: 1;
    min-width: 300px;
}

.footer-info p {
    margin-bottom: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: white;
    font-size: 1.5rem;
    transition: var(--transition);
}

.social-link:hover {
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .course-card {
        min-height: 160px;
    }
}

@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav {
        width: 100%;
        justify-content: space-between;
    }
    
    .search-container {
        width: 100%;
    }
    
    #searchInput {
        width: 100%;
    }
    
    .grid-container {
        grid-template-columns: 1fr;
    }
    
    .course-item {
        grid-template-columns: 50px 1fr;
        grid-template-rows: auto auto;
        gap: 0.5rem;
    }
    
    .course-item-grade, .course-item-role {
        grid-column: span 2;
        text-align: left;
    }
    
    .modal-info {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .filter-options {
        flex-direction: column;
        align-items: stretch;
    }
    
    .period-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}