/* General CSS Setup */
:root {
    --bg-color: #f4f6f8;
    --card-bg: #ffffff;
    --text-color: #333333;
    --text-muted: #666666;
    --border-color: #e0e0e0;
    --primary-accent: #0056b3;
    --secondary-accent: #2e8b57;
    --header-bg: #ffffff;
    --hover-bg: #f0f4f8;
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

header {
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

h1 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--primary-accent);
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    margin-left: 1rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s, color 0.2s;
}

nav a:hover, nav a.active {
    background-color: var(--hover-bg);
    color: var(--primary-accent);
}

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

/* Common Components */
.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

/* Home View */
.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.selector-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

select {
    padding: 0.5rem;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.grid-container {
    overflow-x: auto; /* Allow horizontal scrolling on small screens */
}

.schedule-grid {
    display: grid;
    grid-template-columns: 100px repeat(5, minmax(150px, 1fr));
    gap: 1px;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

.grid-header {
    background-color: var(--header-bg);
    font-weight: bold;
    text-align: center;
    padding: 1rem;
    color: var(--primary-accent);
}

.grid-time {
    background-color: var(--header-bg);
    font-weight: 500;
    text-align: center;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.grid-cell {
    background-color: var(--card-bg);
    padding: 1rem;
    text-align: center;
    position: relative;
    transition: background-color 0.2s;
    cursor: default;
    min-height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

.grid-cell:not(:empty):hover {
    background-color: var(--hover-bg);
    box-shadow: inset 0 0 0 2px var(--primary-accent);
}

.grid-cell:empty {
    background-color: #fafafa;
}

/* Tooltip implementation */
.grid-cell[data-materia]:hover::after {
    content: attr(data-profesor) "\\A Salón: " attr(data-salon);
    white-space: pre-wrap;
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--text-color);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.85rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    z-index: 10;
    width: max-content;
    pointer-events: none;
    margin-bottom: 5px;
    text-align: center;
    font-weight: normal;
}

.grid-cell[data-materia]:hover::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border-width: 5px;
    border-style: solid;
    border-color: var(--text-color) transparent transparent transparent;
    z-index: 10;
    pointer-events: none;
}

/* Live View Specific Styles */
.live-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.live-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s;
}

.live-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

.live-card.inactive {
    opacity: 0.7;
    background-color: #fafafa;
}

.live-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.career-name {
    font-weight: bold;
    color: var(--primary-accent);
    text-transform: capitalize;
    font-size: 1.1rem;
}

.current-time-badge {
    background-color: var(--secondary-accent);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: bold;
}

.live-subject {
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.live-details {
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.live-details p {
    margin: 0.3rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.live-details span.label {
    font-weight: 500;
    color: var(--text-muted);
}

.progress-container {
    width: 100%;
    background-color: var(--border-color);
    border-radius: 4px;
    height: 8px;
    margin-top: 1rem;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--secondary-accent);
    width: 0%;
    transition: width 1s linear;
}

.no-class-msg {
    color: var(--text-muted);
    font-style: italic;
    text-align: center;
    padding: 1rem 0;
}

.live-header-container {
    text-align: center;
    margin-bottom: 2rem;
}

.live-header-container h2 {
    color: var(--primary-accent);
    margin-bottom: 0.5rem;
}

.live-header-container p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Responsive Grid Adjustments */
@media (max-width: 768px) {
    .schedule-grid {
        /* On very small screens, keep grid but user must scroll horizontally */
        grid-template-columns: 80px repeat(5, minmax(120px, 1fr));
    }
    .grid-cell {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
}