:root {
    --sidebar-bg-color: #1A2B40;
    --sidebar-active-color: #2C3E50;
    --text-light: #F5F5F5;
    --main-bg-color: #F8F9FA;
    --sales-color: #2ECC71;
    --cashflow-color: #E74C3C;
    --attendance-color: #F39C12;
    --date-picker-color: #F1C40F;
    --neutral-text-color: #343A40;
    --neutral-bg-color: #FFFFFF;
    --border-color: #DEE2E6;

    /* Main Menu Colors */
    --main-menu-blue: #1A2B40;
    --main-menu-green: #2ECC71;
    --main-menu-red: #E74C3C;
    --main-menu-yellow: #F39C12;
}

body {
    font-family: 'Arial', sans-serif;
    min-height: 100vh;
    background-color: var(--main-bg-color);
    color: var(--neutral-text-color);
}

.sidebar {
    background-color: var(--sidebar-bg-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-right: 1px solid var(--border-color);
}

.logo-section {
    background-color: var(--sidebar-bg-color);
    padding: 20px;
    text-align: center;
    color: var(--text-light);
}

.logo-section h2 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: bold;
}

.menu-item {
    display: flex;
    flex-direction: row;
    /* Changed to row for horizontal layout */
    align-items: center;
    padding: 10px 15px;
    /* Adjusted padding */
    margin: 5px 0;
    /* Adjusted margin */
    border-radius: 8px;
    /* Rectangular shape */
    text-decoration: none !important;
    color: var(--text-light) !important;
    transition: all 0.3s ease;
    text-align: left;
    /* Align text to left */
    font-size: 1rem;
    /* Default font size */
    background-color: var(--sidebar-bg-color) !important;
    /* Default background */
}

.menu-item:hover {
    background-color: var(--sidebar-active-color) !important;
    color: var(--text-light) !important;
    transform: none;
    /* Remove transform on hover */
    box-shadow: none !important;
}

.menu-icon {
    width: 30px;
    /* Adjusted icon size */
    height: 30px;
    /* Adjusted icon size */
    border-radius: 0;
    /* Rectangular shape */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    /* Adjusted icon font size */
    margin-right: 10px;
    /* Margin to separate icon and label */
    color: var(--text-light) !important;
    transition: all 0.3s ease;
    background-color: transparent !important;
}

.menu-label {
    font-size: 1rem;
    /* Default font size */
    text-align: left;
    /* Align text to left */
    font-weight: 400;
    /* Normal font weight */
    line-height: 1.2;
    /* Adjusted line height */
}

/* Specific menu item colors */
.menu-item-sales {
    background-color: var(--sales-color) !important;
}

.menu-item-cashflow {
    background-color: var(--cashflow-color) !important;
}

.menu-item-attendance {
    background-color: var(--attendance-color) !important;
}

.menu-item-blue {
    background-color: #1A2B40 !important;
}

.menu-item-green {
    background-color: #2ECC71 !important;
}

.menu-item-orange {
    background-color: #F39C12 !important;
}

.menu-item-purple {
    background-color: #9b59b6 !important;
}

.menu-item-enroll {
    background-color: #dc3545 !important;
}


/* Main Menu Grid Items */
.main-menu-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    /* Removed fixed width and height for circular shape */
    /* Removed border-radius: 50%; */
    border-radius: 15px;
    /* Slightly rounded rectangular shape */
    padding: 15px;
    /* Adjusted padding */
    text-decoration: none !important;
    color: var(--text-light) !important;
    background-color: var(--main-menu-blue) !important;
    /* Default blue background */
    margin: 5px;
    /* Spacing between items */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    height: auto;
    /* Allow height to adjust based on content and min-height */
    min-height: 90px;
    /* Make buttons more square-like */
    min-width: 90px;
    /* Make buttons more square-like */
    position: relative;
    /* Добавлено для позиционирования бейджа */
}

.main-menu-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.main-menu-item i {
    font-size: 2.5rem;
    /* Large icon size */
    color: var(--text-light) !important;
    margin-bottom: 5px;
}

.main-menu-item span {
    font-size: 1.2rem;
    /* Larger label font size */
    font-weight: bold;
    color: var(--text-light) !important;
    text-align: center;
    line-height: 1.2;
}

/* Specific main menu item colors */
.main-menu-item-sales {
    background-color: var(--main-menu-green) !important;
}

.main-menu-item-cashflow {
    background-color: var(--main-menu-red) !important;
}

.main-menu-item-attendance {
    background-color: var(--main-menu-yellow) !important;
}

.main-menu-item-blue {
    background-color: #1A2B40 !important;
}

.main-menu-item-green {
    background-color: #2ECC71 !important;
}

.main-menu-item-orange {
    background-color: #F39C12 !important;
}

.main-menu-item-purple {
    background-color: #9b59b6 !important;
}

.main-menu-item-enroll {
    background-color: #dc3545 !important;
}

/* Enrollment status и кнопки */
.enrollment-status-enrolled {
    background-color: #28a745 !important;
    color: white !important;
    font-weight: bold;
}

.btn-enroll-available {
    background-color: #007bff !important;
    border-color: #007bff !important;
    color: white !important;
}

.btn-enroll-available:hover {
    background-color: #0056b3 !important;
    border-color: #004085 !important;
}


.main-content {
    padding: 20px;
    padding-bottom: 80px;
    /* Добавлен отступ для FAB-кнопки */
}

.content-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.08);
    padding: 25px;
    margin-bottom: 20px;
}

.btn-primary,
.btn-secondary {
    border-radius: 8px;
    padding: 10px 20px;
    font-weight: 600;
}

.btn-primary {
    background-color: var(--sidebar-active-color) !important;
    border: 1px solid var(--sidebar-active-color) !important;
    color: var(--text-light) !important;
}

.btn-secondary {
    background-color: #6c757d !important;
    border: 1px solid #6c757d !important;
    color: #fff !important;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: none !important;
}

.page-title {
    color: var(--neutral-text-color) !important;
    font-weight: bold;
    margin-bottom: 20px;
    font-size: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    background-color: var(--neutral-bg-color) !important;
    color: var(--neutral-text-color) !important;
    border: 1px solid var(--border-color);
}

.stat-item.bg-primary {
    background-color: var(--sidebar-bg-color) !important;
    color: var(--text-light) !important;
}

.stat-item.bg-success {
    background-color: var(--sales-color) !important;
    color: var(--text-light) !important;
}

.stat-item.bg-warning {
    background-color: var(--attendance-color) !important;
    color: var(--neutral-text-color) !important;
}

.stat-item.bg-danger {
    background-color: var(--cashflow-color) !important;
    color: var(--text-light) !important;
}

.stat-value {
    font-size: 1rem;
    font-weight: bold;
    margin-top: 4px;
}

.card-active {
    z-index: 10;
    position: relative;
}

/* Compact table cells */
.table th,
.table td {
    padding: 0.25rem 0.5rem;
}

/* Visited link fix for main menu buttons - Per user directive */
.row-cols-3 a.btn.visited-link,
.row-cols-3 a.btn.visited-link .bi {
    color: inherit !important;
}

.row-cols-3 a.btn-outline-warning.visited-link,
.row-cols-3 a.btn-outline-warning.visited-link .bi {
    color: inherit !important;
}

.row-cols-3 a.btn-outline-primary,
.row-cols-3 a.btn-outline-secondary,
.row-cols-3 a.btn-outline-success,
.row-cols-3 a.btn-outline-danger,
.row-cols-3 a.btn-outline-warning,
.row-cols-3 a.btn-outline-info,
.row-cols-3 a.btn-outline-dark {
    background-color: var(--neutral-bg-color) !important;
    border-color: var(--border-color) !important;
    color: var(--neutral-text-color) !important;
}

.btn-custom-secondary {
    border: 1px solid var(--border-color);
    color: var(--neutral-text-color) !important;
    background-color: transparent;
    transition: color .15s ease-in-out, background-color .15s ease-in-out, border-color .15s ease-in-out;
}

.btn-custom-secondary:hover {
    color: var(--neutral-text-color) !important;
    background-color: transparent;
    border-color: var(--border-color);
}

/* Aggressive fix for disappearing button content */
.btn-custom-secondary>i,
.btn-custom-secondary>span {
    opacity: 1 !important;
    display: inline-block !important;
}

.page-title {
    color: inherit !important;
    font-weight: bold;
    margin-bottom: 20px;
    font-size: 1.5rem;
    /* Reduced font size for desktop title */
}

.btn-icon-only {
    padding: 0.25rem 0.5rem;
    /* Smaller padding for icon-only buttons */
}

@media (max-width: 767.98px) {
    html {
        font-size: 75%;
        /* Еще немного уменьшаем базовый шрифт */
    }

    .list-group-item .bi,
    .btn .bi {
        font-size: 1.5rem;
        /* Увеличиваем иконки в списках и кнопках */
        vertical-align: middle;
    }

    .main-content {
        padding: 0;
        width: 100%;
        padding-bottom: 80px;
        /* Добавлен отступ для FAB-кнопки на мобильных */
    }

    .main-content .d-md-none {
        padding-left: 0 !important;
        padding-right: 0 !important;
        width: 100%;
    }

    .main-content .d-md-none .content-card,
    .d-md-none .card {
        border-left: 0;
        border-right: 0;
        border-radius: 0;
        box-shadow: none;
    }

    .main-content .d-md-none .content-card {
        background: transparent;
        padding: 0;
        /* Изменено, чтобы не переопределять padding-bottom */
        width: 100%;
    }

    .d-md-none .card .card-body {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }

    .h4.mb-3 {
        font-size: 1.25rem;
        /* Reduced font size for mobile title */
    }

    .btn-icon-only {
        width: 40px !important;
        /* Фиксированная ширина для кнопок в мобильном заголовке */
        height: 40px !important;
        /* Фиксированная высота для кнопок в мобильном заголовке */
        padding: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
        /* Предотвратить сжатие */
    }

    .btn-icon-only i.bi {
        font-size: 1.2rem;
        /* Размер иконки внутри кнопки */
    }

    .main-menu-item {
        min-width: 70px;
        min-height: 70px;
        padding: 10px;
        margin: 5px;
    }

    .main-menu-item i {
        font-size: 2rem;
    }

    .main-menu-item span {
        font-size: 1rem;
        font-weight: bold;
    }
}

.fixed-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
}

.sidebar-hr {
    border-color: var(--border-color);
    margin: 20px 0;
}

.main-content-offset {
    margin-left: 320px;
    padding: 20px;
}

.btn-secondary-color {
    color: var(--neutral-text-color) !important;
}

.icon-2rem {
    font-size: 2rem;
}

.icon-3rem {
    font-size: 3rem;
}

.font-size-0-7rem {
    font-size: 0.7rem;
}

.font-size-0-85rem {
    font-size: 0.85rem;
}

.font-size-0-6rem {
    font-size: 0.6rem;
}

.font-size-0-9rem {
    font-size: 0.9rem;
}

.font-size-1-2rem {
    font-size: 1.2rem;
}

.height-100-percent {
    height: 100%;
}

.line-height-1-1 {
    line-height: 1.1;
}

.login-card-width {
    max-width: 400px;
    width: 100%;
}

.login-icon-style {
    font-size: 3rem;
    color: var(--sidebar-active-color) !important;
    margin-bottom: 10px;
}

.login-heading-color {
    color: var(--sidebar-active-color) !important;
}

.card-body .card-title {
    font-size: 0.9rem;
    /* Smaller title */
}

.card-body .card-subtitle {
    font-size: 0.75rem;
    /* Smaller subtitle */
}

.card-body .badge {
    font-size: 0.75rem;
    /* Smaller badge */
    padding: 0.2em 0.4em;
    /* Adjust padding for smaller badge */
}

.card-body .btn {
    padding: 0.25rem 0.5rem;
    /* Smaller buttons */
    font-size: 0.75rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    background-color: var(--neutral-bg-color) !important;
    color: var(--neutral-text-color) !important;
    border: 1px solid var(--border-color);
}

.stat-value {
    font-size: 1rem;
    font-weight: bold;
    margin-top: 4px;
}





.text-white,
.text-dark {
    color: inherit !important;
}

.btn-outline-primary,
.btn-outline-secondary,
.btn-outline-success,
.btn-outline-danger,
.btn-outline-warning,
.btn-outline-info,
.btn-outline-dark {
    background-color: transparent !important;
    border-color: #e0e0e0 !important;
    color: inherit !important;
}

.badge.bg-danger {
    background-color: var(--cashflow-color) !important;
    /* Keep danger badge red for visibility */
    color: var(--text-light) !important;
}

.btn-icon-only i.bi {
    font-size: 1.5rem;
    /* Larger icon size for hamburger */
}

.fab-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--sidebar-active-color);
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    z-index: 1050;
    transition: background-color 0.3s ease;
}

.fab-button:hover {
    background-color: #217dbb;
    /* Darker shade on hover */
    color: var(--text-light);
}

.instructor-photo {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 50%;
}

.compact-text {
    font-size: 0.85em;
    display: block;
}

@media (max-width: 767.98px) {

    .mobile-phone a,
    .mobile-email a {
        font-size: 1em;
        /* Чуть поменьше */
        font-weight: bold;
        /* Жирный */
        text-decoration: none;
    }

    .mobile-phone a {
        color: var(--main-menu-blue) !important;
        /* Синий цвет для телефона */
    }

    .mobile-email a {
        color: var(--main-menu-green) !important;
        /* Зеленый цвет для email */
    }

    .mobile-contact-item {
        display: flex;
        align-items: center;
        gap: 5px;
    }

    .mobile-contact-icon {
        font-size: 1.1em;
        /* Чуть поменьше иконки */
    }
}

.js-hide {
    display: none !important;
}

.repetition-rule {
    display: none !important;
}

.module-menu .main-menu-item span {
    font-size: 0.8rem;
}



.student-nameplate {
    background-color: var(--attendance-color);
    color: var(--neutral-text-color);
    padding: 1rem;
    border-radius: 0.25rem;
    margin-bottom: 1rem;
}

/* Styles for Attendance Schedule Page */
.attendance-schedule-container {
    font-size: 0.9rem;
}

.attendance-schedule-container .date-nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    border: 1px solid #dee2e6;
    border-radius: 0.25rem;
}

.attendance-schedule-container .date-nav-container .btn {
    border: none;
}

.attendance-schedule-container .date-display {
    font-weight: bold;
}

.attendance-schedule-container .lesson-nameplate {
    background-color: var(--attendance-color);
    color: var(--neutral-text-color);
    padding: 0.75rem 1.25rem;
    border-radius: 0.25rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 1rem;
    width: 100%;
}

.attendance-schedule-container .attendance-count {
    font-weight: bold;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
}

.attendance-schedule-container .student-button {
    display: block;
    width: 100%;
    margin-bottom: 0.5rem;
    padding: 0.75rem;
    border-radius: 0.3rem;
    text-align: left;
    font-weight: 500;
}

.attendance-schedule-container .student-button.present {
    background-color: #48D1CC;
    color: white;
    border: none;
}

.attendance-schedule-container .student-button.previous {
    background-color: white;
    color: #212529;
    border: 1px solid #dee2e6;
}

.attendance-schedule-container .student-button.previous.active {
    background-color: #48D1CC;
    color: white;
    border: none;
}

/* Floating OK button */
.btn-ok {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1050;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

/* Student button statuses */
.student-button.present {
    background-color: #28a745;
    /* Green */
    color: white;
    border-color: #28a745;
}

/* Modal Action Buttons */
.btn-modal-action {
    min-width: 110px;
    font-size: 0.85rem;
    padding: 0.25rem 0.5rem;
    border-radius: 50px !important;
    /* Make all buttons pill-shaped */
}

.student-button.absent {
    background-color: #dc3545;
    /* Red */
    color: white;
    border-color: #dc3545;
}

.student-button.cancelled {
    background-color: #ffc107;
    /* Yellow */
    color: #212529;
    border-color: #ffc107;
}

.app-alert {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1060;
}

.clickable-row {
    cursor: pointer;
}

.clickable-row:hover {
    background-color: #f5f5f5;
}

.student-avatar {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 50%;
    margin-right: 10px;
}

.list-group-item-flex {
    display: flex;
    align-items: center;
}

.student-button.previous.student-present {
    background-color: rgba(46, 204, 113, 0.3);
}

/* Calendar Styles */
.calendar-grid {
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--border-color);
}

.calendar-header-row {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background-color: var(--main-bg-color);
    border-bottom: 1px solid var(--border-color);
    font-weight: bold;
    text-align: center;
    padding: 10px 0;
}

.calendar-row {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    border-bottom: 1px solid var(--border-color);
}

.calendar-row:last-child {
    border-bottom: none;
}

.calendar-day {
    min-height: 80px;
    padding: 5px;
    border-right: 1px solid var(--border-color);
    position: relative;
    cursor: pointer;
    transition: background-color 0.2s;
}

.calendar-day:last-child {
    border-right: none;
}

.calendar-day:hover:not(.empty) {
    background-color: #f8f9fa;
}

.calendar-day.empty {
    background-color: #fcfcfc;
    cursor: default;
}

.day-number {
    font-size: 0.9rem;
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--neutral-text-color);
}

.day-events {
    display: flex;
    flex-wrap: wrap;
    gap: 3px;
    justify-content: center;
}

.event-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--sidebar-active-color);
    box-sizing: border-box;
}

@media (max-width: 767.98px) {
    .calendar-day {
        min-height: 60px;
        padding: 2px;
    }

    .day-number {
        font-size: 0.8rem;
    }

    .event-dot {
        width: 6px;
        height: 6px;
    }
}

.calendar-day.today {
    background-color: #e8f4ff !important;
    border: 2px solid var(--sidebar-active-color) !important;
}

/* Text outline helper */
.text-outline {
    text-shadow: 
        -1px -1px 0 #000,  
         1px -1px 0 #000,
        -1px  1px 0 #000,
         1px  1px 0 #000;
}