:root {
    --main-purple: #6a0dad;
    --dark-purple: #4b0082;
    --light-purple: #9370db;
    --accent-color: #ff5722;
    --black: #222;
    --white: #ffffff;
    --light-gray: #f5f5f5;
    --medium-gray: #cccccc;
    --dark-gray: #555;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --success-color: #4caf50;
}

body {
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, rgba(106, 13, 173, 0.85), rgba(75, 0, 130, 0.9));
    background-size: cover;
    color: var(--white);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    direction: rtl;
    text-align: right;
    min-height: 100vh;
}

.btn-info {
    background: linear-gradient(to right, #17a2b8, #138496);
    color: var(--white);
    border: 2px solid #17a2b8;
}

.btn-info:hover {
    background: linear-gradient(to right, #138496, #17a2b8);
    box-shadow: 0 0 15px #17a2b8;
    transform: translateY(-2px);
}

.container {
    background-color: rgba(0, 0, 0, 0.75);
    border: 2px solid var(--main-purple);
    width: 95%;
    max-width: 1200px;
    margin: 20px auto;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 0 30px rgba(106, 13, 173, 0.6);
}

.welcome-header {
    text-align: center;
    margin-bottom: 30px;
    padding: 20px;
    border-bottom: 2px solid var(--main-purple);
    position: relative;
    animation: fadeIn 1.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.logo-container {
    margin: 0 auto 20px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 5px solid var(--main-purple);
    box-shadow: 0 0 25px var(--light-purple);
}

.logo-container img {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    object-fit: cover;
}

h1, h2 {
    color: var(--white);
    text-shadow: 0 0 10px var(--main-purple);
    font-family: 'Times New Roman', serif;
    margin-bottom: 20px;
}

.card {
    background-color: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--main-purple);
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 0 15px rgba(106, 13, 173, 0.4);
}

.card-header {
    background: linear-gradient(to right, var(--dark-purple), var(--main-purple));
    color: var(--white);
    border-bottom: 1px solid var(--main-purple);
    border-radius: 10px 10px 0 0 !important;
    padding: 12px 20px;
    font-weight: bold;
}

.form-group {
    margin-bottom: 20px;
}

.form-control {
    width: 100%;
    padding: 12px 20px;
    margin: 10px 0;
    border: 2px solid var(--main-purple);
    border-radius: 50px;
    background-color: rgba(0, 0, 0, 0.6);
    color: var(--white);
    text-align: right;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    box-shadow: 0 0 15px var(--light-purple);
    border-color: var(--light-purple);
}

.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 20px 0;
    box-shadow: 0 0 20px rgba(106, 13, 173, 0.4);
    border-radius: 10px;
    overflow: hidden;
}

.table th {
    background: linear-gradient(to right, var(--dark-purple), var(--main-purple));
    color: var(--white);
    padding: 15px;
    text-align: center;
    font-weight: 600;
    border: none;
}

.table td {
    padding: 12px 15px;
    border-bottom: 1px solid rgba(106, 13, 173, 0.3);
    text-align: center;
    color: var(--white);
    background-color: rgba(0, 0, 0, 0.5);
    transition: background-color 0.3s ease;
}

.table tr:nth-child(even) td {
    background-color: rgba(106, 13, 173, 0.15);
}

.table tr:hover td {
    background-color: rgba(106, 13, 173, 0.3);
}

.btn {
    padding: 12px 25px;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
    margin: 5px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.btn-primary {
    background: linear-gradient(to right, var(--main-purple), var(--dark-purple));
    color: var(--white);
    border: 2px solid var(--light-purple);
}

.btn-primary:hover {
    background: linear-gradient(to right, var(--dark-purple), var(--main-purple));
    box-shadow: 0 0 15px var(--light-purple);
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(to right, var(--accent-color), #d63b18);
    color: var(--white);
    border: 2px solid var(--accent-color);
}

.btn-danger:hover {
    background: linear-gradient(to right, #d63b18, var(--accent-color));
    box-shadow: 0 0 15px var(--accent-color);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(to right, #28a745, #20c997);
    color: var(--white);
    border: 2px solid #28a745;
}

.btn-success:hover {
    background: linear-gradient(to right, #20c997, #28a745);
    box-shadow: 0 0 15px #28a745;
    transform: translateY(-2px);
}

.btn-warning {
    background: linear-gradient(to right, #ffc107, #fd7e14);
    color: var(--white);
    border: 2px solid #ffc107;
}

.btn-warning:hover {
    background: linear-gradient(to right, #fd7e14, #ffc107);
    box-shadow: 0 0 15px #ffc107;
    transform: translateY(-2px);
}

.btn-action {
    min-width: 90px;
    margin: 3px;
    padding: 8px 15px;
    font-size: 0.9rem;
}

.btn-grad {
    background-image: linear-gradient(to right, var(--main-purple) 0%, var(--light-purple) 51%, var(--dark-purple) 100%);
    margin: 10px;
    padding: 15px 45px;
    text-align: center;
    text-transform: uppercase;
    transition: 0.5s;
    background-size: 200% auto;
    color: var(--white);
    box-shadow: 0 0 20px var(--main-purple);
    border-radius: 50px;
    display: inline-block;
    border: none;
    font-weight: bold;
}

.btn-grad:hover {
    background-position: right center;
    color: var(--white);
    text-decoration: none;
    transform: translateY(-3px);
    box-shadow: 0 0 25px var(--light-purple);
}

.btn-grad:active {
    transform: scale(0.98);
    transition: transform 0.1s;
}

.absence-badge {
    display: inline-block;
    padding: 5px 12px;
    background: linear-gradient(to right, var(--dark-purple), var(--main-purple));
    color: var(--white);
    border-radius: 50px;
    margin: 3px;
    font-size: 0.85em;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.absence-warning {
    background: linear-gradient(to right, var(--warning-color), #e68900);
}

.absence-danger {
    background: linear-gradient(to right, var(--danger-color), #c62828);
}

.absence-max {
    background: linear-gradient(to right, #000000, #333333);
    color: #ff0000;
    text-shadow: 0 0 5px rgba(255, 0, 0, 0.5);
}

.selected-lesson {
    background: linear-gradient(to right, var(--dark-purple), var(--main-purple));
    color: var(--white);
    padding: 12px 20px;
    border-radius: 50px;
    margin: 10px 0;
    display: inline-block;
    box-shadow: 0 0 15px var(--main-purple);
}

.no-lesson {
    color: var(--medium-gray);
    font-style: italic;
}

.delete-icon {
    cursor: pointer;
    color: var(--accent-color);
    margin-left: 10px;
    font-size: 18px;
    transition: all 0.3s ease;
}

.delete-icon:hover {
    color: #ff0000;
    transform: scale(1.2);
}

.lesson-absence {
    background-color: rgba(106, 13, 173, 0.3);
    padding: 6px 10px;
    margin: 3px;
    border-radius: 5px;
    color: var(--white);
    font-size: 0.9em;
}

#selectedLessonDisplay {
    border-radius: 10px;
    padding: 15px 20px;
    background: linear-gradient(to right, rgba(75, 0, 130, 0.7), rgba(106, 13, 173, 0.7));
    border: 1px solid var(--main-purple);
    color: var(--white);
    margin-bottom: 20px;
    box-shadow: 0 0 15px var(--main-purple);
}

.section-title {
    position: relative;
    padding-bottom: 10px;
    margin-bottom: 25px;
    border-bottom: 2px solid var(--main-purple);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    right: 0;
    width: 100px;
    height: 2px;
    background: var(--light-purple);
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
        border-radius: 10px;
    }
    
    .table th, .table td {
        padding: 8px 10px;
        font-size: 14px;
    }
    
    .btn {
        padding: 10px 18px;
        font-size: 14px;
    }

    .btn-grad {
        padding: 12px 30px;
        font-size: 14px;
    }
}

.stats-box {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 20px;
    border: 1px solid var(--main-purple);
    box-shadow: 0 0 15px rgba(106, 13, 173, 0.3);
    transition: all 0.3s ease;
}

.stats-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 20px var(--light-purple);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--light-purple);
    text-shadow: 0 0 10px var(--main-purple);
    margin-bottom: 5px;
}

.stats-box div:last-child {
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.welcome-message {
    font-size: 1.2rem;
    margin-bottom: 20px;
    text-align: center;
    line-height: 1.6;
}

.teacher-name {
    color: var(--light-purple);
    font-weight: bold;
}

.email-icon {
    color: #D44638;
    font-size: 20px;
    margin-right: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.email-icon:hover {
    color: #ff6b6b;
    transform: scale(1.2);
}

.edit-email-icon {
    color: var(--light-purple);
    cursor: pointer;
    margin-right: 10px;
    transition: all 0.3s ease;
}

.edit-email-icon:hover {
    color: var(--accent-color);
    transform: scale(1.2);
}

.email-cell {
    display: flex;
    align-items: center;
    justify-content: center;
}

.absence-notes {
    max-width: 200px;
    word-wrap: break-word;
}

.notes-toggle {
    cursor: pointer;
    color: var(--light-purple);
    font-size: 0.9em;
    margin-top: 5px;
    display: inline-block;
}

.notes-container {
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--main-purple);
    border-radius: 5px;
    padding: 10px;
    margin-top: 5px;
    max-height: 150px;
    overflow-y: auto;
}

.note-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 5px 0;
    font-size: 0.85em;
}

.note-date {
    color: var(--light-purple);
    font-size: 0.8em;
}

.file-upload-area {
    border: 2px dashed var(--light-purple);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    margin: 20px 0;
    background: rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: all 0.3s ease;
}

.file-upload-area:hover {
    background: rgba(106, 13, 173, 0.2);
    border-color: var(--main-purple);
}

.file-upload-icon {
    font-size: 3rem;
    color: var(--light-purple);
    margin-bottom: 15px;
}

.import-summary {
    background: rgba(0, 0, 0, 0.4);
    border-radius: 10px;
    padding: 15px;
    margin-top: 20px;
    border: 1px solid var(--main-purple);
}

.import-success {
    color: var(--success-color);
}

.import-error {
    color: var(--danger-color);
}

.edit-email-modal .modal-content {
    background: linear-gradient(135deg, rgba(75, 0, 130, 0.95), rgba(106, 13, 173, 0.95));
    border: 2px solid var(--light-purple);
    border-radius: 15px;
    color: var(--white);
}

.edit-email-modal .modal-header {
    border-bottom: 1px solid var(--light-purple);
}

.edit-email-modal .modal-footer {
    border-top: 1px solid var(--light-purple);
}

.connection-status {
    position: fixed;
    top: 10px;
    right: 10px;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 14px;
    z-index: 1000;
    display: flex;
    align-items: center;
}

.status-connected {
    background-color: var(--success-color);
    color: white;
}

.status-disconnected {
    background-color: var(--danger-color);
    color: white;
}

.status-icon {
    margin-left: 5px;
}

/* شێوازی فۆرمی چوونەژوورەوە */
#loginForm {
    max-width: 500px;
    margin: 50px auto;
}

.login-error {
    color: var(--danger-color);
    text-align: center;
    margin-top: 15px;
    display: none;
}

/* شێوازی نوێ بۆ بەشی ئامار */
#statsTable th {
    background: linear-gradient(to right, var(--dark-purple), var(--main-purple));
    color: var(--white);
    padding: 15px;
    text-align: center;
    font-weight: 600;
    border: none;
}

#statsTable td {
    padding: 12px 15px;
    border-bottom: 1px solid rgba(106, 13, 173, 0.3);
    text-align: center;
    color: var(--white);
    background-color: rgba(0, 0, 0, 0.5);
    transition: background-color 0.3s ease;
}

#statsTable tr:hover td {
    background-color: rgba(106, 13, 173, 0.3);
}

/* شێوازی پێگەکان */
.absence-max {
    background: linear-gradient(to right, #000000, #333333);
    color: #ff0000;
    text-shadow: 0 0 5px rgba(255, 0, 0, 0.5);
}

.absence-danger {
    background: linear-gradient(to right, var(--danger-color), #c62828);
}

.absence-warning {
    background: linear-gradient(to right, var(--warning-color), #e68900);
}

/* شێوازی فیلتەرەکان */
#statsLessonSelect, #statsDepartmentSelect, #statsGroupSelect {
    background-color: rgba(0, 0, 0, 0.6);
    color: var(--white);
    border: 2px solid var(--main-purple);
}

#statsLessonSelect:focus, #statsDepartmentSelect:focus, #statsGroupSelect:focus {
    box-shadow: 0 0 15px var(--light-purple);
    border-color: var(--light-purple);
}

/* شێوازی زیادکراو بۆ هەڵەکان */
.toggle-errors {
    color: #007bff;
    cursor: pointer;
    text-decoration: underline;
    margin-right: 5px;
}

.toggle-errors:hover {
    color: #0056b3;
}

.error-popup {
    direction: rtl;
    text-align: right;
}

.error-popup .swal2-content {
    white-space: pre-line;
    max-height: 400px;
    overflow-y: auto;
}