/*
 * Shared ClassRoll styles.
 *
 * Attendance coloring remains in `ClassRollGrid.razor`.
 */

/* ========================================
 * Session Type Indicators
 * ======================================== */

/* Open Session */
.session-type-open {
    border-top: 2px solid #0d6efd;
}

/* Program Lock Session */
.session-type-plock {
    border-top: 2px solid #6610f2;
}

/* Day Lock Session */
.session-type-dlock {
    border-top: 2px solid #6f42c1;
}

/* Clinical Session */
.session-type-clinical {
    border-top: 2px solid #0dcaf0;
}

/* Lab Session */
.session-type-lab {
    border-top: 2px solid #20c997;
}

.secondary-session .attendance-header {
    padding: 0.25rem;
    border-radius: 0.25rem;
}

/* ========================================
 * Student Row Highlighting
 * ======================================== */

/* Hover effect for rows */
.classroll-table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
    cursor: pointer;
}

/* ========================================
 * Grid Layout Enhancements
 * ======================================== */

/* Sticky column headers */
.classroll-table thead th.sticky-top {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--bs-light);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}


/* Disabled/non-editable attendance cells */
.attendance-col .attendance-display {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Attendance select focus */
.attendance-select:focus {
    border-color: #0d6efd;
}

/* ========================================
 * Responsive Adjustments
 * ======================================== */

@media (max-width: 768px) {
    .classroll-table {
        font-size: 0.75rem;
    }

    .student-photo {
        width: 30px;
        height: 30px;
    }

    .attendance-col {
        min-width: 80px;
    }

    .student-status-badges .badge {
        font-size: 0.65rem;
        padding: 0.2rem 0.4rem;
    }
}

/* ========================================
 * Print Styles
 * ======================================== */

@media print {
    .classroll-toolbar,
    .actions-col,
    .attendance-select {
        display: none !important;
    }

    .attendance-col .attendance-display {
        opacity: 1 !important;
        border: 1px solid #000 !important;
    }

    .classroll-table {
        page-break-inside: avoid;
    }

    .classroll-table thead th {
        position: static;
        background-color: #f8f9fa !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    /* Preserve attendance type colors in print */
    .attendance-p {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .attendance-t {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .attendance-a {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .attendance-e {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .attendance-v {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .attendance-s {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .attendance-l {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}

/* ========================================
 * Loading States
 * ======================================== */

.classroll-loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.classroll-saving-indicator {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1050;
    animation: slide-in 0.3s ease-out;
}

@keyframes slide-in {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ========================================
 * Accessibility Enhancements
 * ======================================== */

/* Focus indicators for keyboard navigation */
.classroll-table tbody tr:focus-within {
    outline: 2px solid #0d6efd;
    outline-offset: -2px;
}

.attendance-select:focus-visible {
    outline: 2px solid #0d6efd;
    outline-offset: 2px;
}

/* Screen reader only text */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}