:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --secondary: #7209b7;
    --accent: #f72585;
    --success: #4cc9f0;
    --danger: #f72585;
    --warning: #f8961e;
    --dark: #212529;
    --light: #f8f9fa;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --border-radius: 12px;
    --box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Навигация */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-brand {
    display: flex;
    flex-direction: column;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: #c11dcc;
    text-decoration: none;
}

.logo span {
    color: var(--primary);
}

.tagline {
    font-size: 12px;
    color: var(--gray);
    margin-top: -5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-link {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary);
    color: white;
}

.auth-buttons {
    display: flex;
    gap: 10px;
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.3);
}

.btn-secondary {
    background: var(--secondary);
    color: white;
}

.btn-outline {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 18px;
}

/* Герой секция */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="white" opacity="0.1"/></svg>');
    background-size: cover;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.highlight {
    color: var(--success);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    right: 0;
    height: 10px;
    background: rgba(76, 201, 240, 0.3);
    z-index: -1;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-image {
    position: relative;
}

.floating-card {
    background: white;
    border-radius: 20px;
    padding: 25px;
    box-shadow: var(--box-shadow);
    animation: float 6s ease-in-out infinite;
    color: var(--dark);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.price-tag {
    background: var(--primary);
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-weight: 600;
}

.card-preview {
    border: 2px dashed var(--light-gray);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.preview-image {
    width: 100%;
    height: 150px;
    background: linear-gradient(45deg, var(--light-gray), #ddd);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
    margin-bottom: 15px;
}

.blurred {
    filter: blur(5px);
}

.watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    font-weight: bold;
    color: rgba(0, 0, 0, 0.3);
    pointer-events: none;
}

/* Секции */
section {
    padding: 80px 0;
}

.section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin: 15px auto;
    border-radius: 2px;
}

/* Карточки фич */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 28px;
}

.feature-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 22px;
    margin-bottom: 15px;
}

/* Карточки заданий */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.view-all {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.assignments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.assignment-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.assignment-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.assignment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.assignment-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.badge {
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-primary {
    background: rgba(255, 255, 255, 0.2);
}

.badge-secondary {
    background: rgba(255, 255, 255, 0.2);
}

.price {
    font-size: 24px;
    font-weight: 700;
}

.assignment-body {
    padding: 25px;
}

.assignment-body h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 20px;
    margin-bottom: 10px;
}

.subject {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 14px;
}

.preview-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 25px;
}

.preview-img {
    height: 100px;
    background: var(--light-gray);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.assignment-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.curator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray);
}

/* Как это работает */
.how-it-works {
    background: var(--light);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    text-align: center;
}

.step {
    opacity: 0;
    transform: translateY(30px);
}

.step.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    margin: 0 auto 25px;
    position: relative;
}

.step-number::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 100%;
    width: 40px;
    height: 2px;
    background: var(--primary);
    opacity: 0.3;
}

.step:last-child .step-number::after {
    display: none;
}

/* Футер */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-brand p {
    opacity: 0.7;
    margin-top: 15px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.link-group h4 {
    font-family: 'Montserrat', sans-serif;
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--success);
}

.link-group a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 12px;
    transition: var(--transition);
}

.link-group a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* Мобильное меню */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark);
    cursor: pointer;
}

/* Личный кабинет */
.dashboard {
    padding: 120px 0 80px;
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 250fr 1fr;
    gap: 30px;
}

.dashboard-sidebar {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    height: fit-content;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    color: var(--dark);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--primary);
    color: white;
}

.dashboard-main {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    opacity: 0.9;
}

/* Формы */
.form-container {
    max-width: 500px;
    margin: 100px auto;
    background: white;
    padding: 50px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* Админ панель */
.admin-header {
    background: linear-gradient(135deg, var(--dark), #2d3436);
    color: white;
    padding: 120px 0 50px;
}

.admin-nav {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 15px;
    margin-top: 30px;
}

.admin-nav a {
    color: white;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.admin-nav a:hover,
.admin-nav a.active {
    background: white;
    color: var(--dark);
}

.admin-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    padding: 40px 0;
}

.admin-sidebar {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.admin-content {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
}

/* Таблицы */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

thead {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

th, td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

tbody tr:hover {
    background: rgba(67, 97, 238, 0.05);
}

.status {
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status.pending {
    background: #fff3cd;
    color: #856404;
}

.status.completed {
    background: #d1e7dd;
    color: #0f5132;
}

.status.cancelled {
    background: #f8d7da;
    color: #721c24;
}

/* Адаптивность */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .dashboard-grid,
    .admin-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
    }
    
    .nav-menu.show {
        transform: translateY(0);
        opacity: 1;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .assignments-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 28px;
    }
}

@media (max-width: 576px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .form-container {
        padding: 30px 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Исправления для мобильного меню */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark);
    cursor: pointer;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background: var(--light);
}

.mobile-menu-btn.active i {
    transform: rotate(90deg);
}

/* Исправления для навигации в мобильной версии */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
        border-radius: 0 0 var(--border-radius) var(--border-radius);
    }
    
    .nav-menu.show {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu .nav-link {
        padding: 15px;
        width: 100%;
        justify-content: flex-start;
    }
    
    .auth-buttons {
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }
    
    .auth-buttons .btn {
        width: 100%;
        text-align: center;
    }
    
    .user-dropdown {
        width: 100%;
    }
    
    .user-btn {
        width: 100%;
        justify-content: space-between;
    }
}

/* Исправления для кнопок переключения пароля */
.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.password-toggle:hover {
    color: var(--primary);
}

.password-toggle i {
    font-size: 16px;
}

/* Исправления для полей ввода с иконками */
.input-with-icon {
    position: relative;
}

.input-with-icon .form-control {
    padding-right: 45px !important;
}

/* Исправления для форм авторизации/регистрации */
.auth-page .form-control {
    padding: 12px 15px 12px 45px !important;
    height: 48px;
    font-size: 16px;
}

.auth-page .input-with-icon i {
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

/* Исправления для страницы регистрации */
.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 768px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* Исправления для индикаторов валидации */
.is-invalid {
    border-color: #dc3545 !important;
}

.is-invalid:focus {
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25) !important;
}

.invalid-feedback {
    display: block;
    color: #dc3545;
    font-size: 14px;
    margin-top: 5px;
}

/* Исправления для чекбоксов и радио-кнопок */
.checkbox-label,
.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--dark);
    font-size: 14px;
    margin-bottom: 10px;
}

.checkbox-label input,
.radio-label input {
    display: none;
}

.checkmark,
.radiomark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--light-gray);
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.radiomark {
    border-radius: 50%;
}

.checkbox-label input:checked ~ .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.radio-label input:checked ~ .radiomark {
    border-color: var(--primary);
}

.checkmark::after {
    content: '';
    position: absolute;
    display: none;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.radiomark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    display: none;
}

.checkbox-label input:checked ~ .checkmark::after,
.radio-label input:checked ~ .radiomark::after {
    display: block;
}

/* Улучшение для модальных окон */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalFadeIn 0.3s ease;
}

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

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--light-gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 20px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray);
    cursor: pointer;
    font-size: 20px;
    padding: 5px;
}

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

.modal-body {
    padding: 20px;
}

.badge-light {
    background: white;
    color: var(--dark);
}

/* Стили для формы добавления задания */
.form-text {
    display: block;
    margin-top: 5px;
    color: var(--gray);
    font-size: 12px;
}

.upload-tips {
    background: rgba(76, 201, 240, 0.1);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 30px;
    border-left: 4px solid var(--success);
}

.upload-tips p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-weight: 500;
}

.upload-tips i {
    color: var(--warning);
}

.upload-tips ul {
    margin: 0;
    padding-left: 20px;
}

.upload-tips li {
    margin-bottom: 5px;
    color: var(--gray);
    font-size: 14px;
}

.page-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--dark);
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.input-with-icon .form-control {
    padding-right: 45px;
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
    
    .form-section {
        padding: 20px;
    }
    
    .upload-card {
        min-height: 200px;
        padding: 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}

/* Стили для статусов загрузки */
.upload-status {
    display: none;
    padding: 10px;
    margin-top: 10px;
    border-radius: 8px;
    font-size: 12px;
}

.upload-status.success {
    display: block;
    background: rgba(76, 201, 240, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.upload-status.error {
    display: block;
    background: rgba(247, 37, 133, 0.1);
    color: var(--danger);
    border: 1px solid var(--danger);
}

/* Стили для превью изображений */
.preview-container img {
    transition: all 0.3s ease;
}

.preview-container:hover img {
    transform: scale(1.05);
}

.remove-image {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.preview-container:hover .remove-image {
    opacity: 1;
}

/* Стили для формы в фокусе */
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
    outline: none;
}

/* Стили для выбранных опций */
select.form-control option:checked {
    background: var(--primary);
    color: white;
}

/* Стили для заголовков формы */
.form-section h2 {
    font-size: 22px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
}

.form-section h2 i {
    font-size: 20px;
    width: 30px;
    text-align: center;
}

:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --secondary: #7209b7;
    --accent: #f72585;
    --success: #4cc9f0;
    --danger: #f72585;
    --warning: #f8961e;
    --dark: #212529;
    --light: #f8f9fa;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --border-radius: 12px;
    --box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Навигация */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.nav-brand {
    display: flex;
    flex-direction: column;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: #c11dcc;
    text-decoration: none;
}

.logo span {
    color: var(--primary);
}

.tagline {
    font-size: 12px;
    color: var(--gray);
    margin-top: -5px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 25px;
}

.nav-link {
    color: var(--dark);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary);
    color: white;
}

.auth-buttons {
    display: flex;
    gap: 10px;
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-family: 'Montserrat', sans-serif;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(67, 97, 238, 0.3);
}

.btn-secondary {
    background: var(--secondary);
    color: white;
}

.btn-outline {
    background: #ff000069;
    border-color: #ff0000;
    color: #000000;
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 18px;
}

/* Герой секция */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Z" fill="white" opacity="0.1"/></svg>');
    background-size: cover;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.highlight {
    color: var(--success);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 0;
    right: 0;
    height: 10px;
    background: rgba(76, 201, 240, 0.3);
    z-index: -1;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-image {
    position: relative;
}

.floating-card {
    background: white;
    border-radius: 20px;
    padding: 25px;
    box-shadow: var(--box-shadow);
    animation: float 6s ease-in-out infinite;
    color: var(--dark);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.price-tag {
    background: var(--primary);
    color: white;
    padding: 6px 15px;
    border-radius: 20px;
    font-weight: 600;
}

.card-preview {
    border: 2px dashed var(--light-gray);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.preview-image {
    width: 100%;
    height: 150px;
    background: linear-gradient(45deg, var(--light-gray), #ddd);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
    margin-bottom: 15px;
}

.blurred {
    filter: blur(5px);
}

.watermark {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 24px;
    font-weight: bold;
    color: rgba(0, 0, 0, 0.3);
    pointer-events: none;
}

/* Секции */
section {
    padding: 80px 0;
}

.section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin: 15px auto;
    border-radius: 2px;
}

/* Карточки фич */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 28px;
}

.feature-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 22px;
    margin-bottom: 15px;
}

/* Карточки заданий */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.view-all {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.assignments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.assignment-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    opacity: 0;
    transform: translateY(30px);
}

.assignment-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.assignment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.assignment-header {
    padding: 20px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.badge {
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-primary {
    background: rgba(255, 255, 255, 0.2);
}

.badge-secondary {
    background: rgba(255, 255, 255, 0.2);
}

.price {
    font-size: 24px;
    font-weight: 700;
}

.assignment-body {
    padding: 25px;
}

.assignment-body h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 20px;
    margin-bottom: 10px;
}

.subject {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 14px;
}

.preview-images {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 25px;
}

.preview-img {
    height: 100px;
    background: var(--light-gray);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}

.assignment-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.curator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--gray);
}

/* Как это работает */
.how-it-works {
    background: var(--light);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    text-align: center;
}

.step {
    opacity: 0;
    transform: translateY(30px);
}

.step.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
    margin: 0 auto 25px;
    position: relative;
}

.step-number::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 100%;
    width: 40px;
    height: 2px;
    background: var(--primary);
    opacity: 0.3;
}

.step:last-child .step-number::after {
    display: none;
}

/* Футер */
.footer {
    background: var(--dark);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 50px;
}

.footer-brand p {
    opacity: 0.7;
    margin-top: 15px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.link-group h4 {
    font-family: 'Montserrat', sans-serif;
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--success);
}

.link-group a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 12px;
    transition: var(--transition);
}

.link-group a:hover {
    color: white;
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

/* Мобильное меню */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark);
    cursor: pointer;
    padding: 10px;
}

/* Личный кабинет */
.dashboard {
    padding: 120px 0 80px;
    min-height: 100vh;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 250fr 1fr;
    gap: 30px;
}

.dashboard-sidebar {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    height: fit-content;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 20px;
    color: var(--dark);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--primary);
    color: white;
}

.dashboard-main {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    opacity: 0.9;
}

/* Формы */
.form-container {
    max-width: 500px;
    margin: 100px auto;
    background: white;
    padding: 50px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 15px;
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

/* Админ панель */
.admin-header {
    background: linear-gradient(135deg, var(--dark), #2d3436);
    color: white;
    padding: 120px 0 50px;
}

.admin-nav {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 15px;
    margin-top: 30px;
}

.admin-nav a {
    color: white;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.admin-nav a:hover,
.admin-nav a.active {
    background: white;
    color: var(--dark);
}

.admin-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
    padding: 40px 0;
}

.admin-sidebar {
    background: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.admin-content {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px;
    box-shadow: var(--box-shadow);
}

/* Таблицы */
.table-container {
    overflow-x: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

thead {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

th, td {
    padding: 20px;
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

tbody tr:hover {
    background: rgba(67, 97, 238, 0.05);
}

.status {
    padding: 6px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status.pending {
    background: #fff3cd;
    color: #856404;
}

.status.completed {
    background: #d1e7dd;
    color: #0f5132;
}

.status.cancelled {
    background: #f8d7da;
    color: #721c24;
}

/* Адаптивность */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .dashboard-grid,
    .admin-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
        border-radius: 0 0 var(--border-radius) var(--border-radius);
    }
    
    .nav-menu.show {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .assignments-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 28px;
    }
}

@media (max-width: 576px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .form-container {
        padding: 30px 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Исправления для мобильного меню */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark);
    cursor: pointer;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background: var(--light);
}

/* Исправления для навигации в мобильной версии */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
        border-radius: 0 0 var(--border-radius) var(--border-radius);
    }
    
    .nav-menu.show {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu .nav-link {
        padding: 15px;
        width: 100%;
        justify-content: flex-start;
    }
    
    .auth-buttons {
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }
    
    .auth-buttons .btn {
        width: 100%;
        text-align: center;
    }
    
    .user-dropdown {
        width: 100%;
    }
    
    .user-btn {
        width: 100%;
        justify-content: space-between;
    }
}

/* JavaScript для мобильного меню (добавлено из transactions.php) */
/* Этот скрипт должен быть добавлен в файл main.js или на страницу */
/* 
document.addEventListener('DOMContentLoaded', function() {
    const mobileMenuBtn = document.getElementById('mobileMenuBtn');
    const navMenu = document.getElementById('navMenu');
    
    if (mobileMenuBtn && navMenu) {
        mobileMenuBtn.addEventListener('click', function() {
            navMenu.classList.toggle('show');
            const icon = this.querySelector('i');
            if (navMenu.classList.contains('show')) {
                icon.className = 'fas fa-times';
            } else {
                icon.className = 'fas fa-bars';
            }
        });
    }
});
*/

/* Исправления для кнопок переключения пароля */
.password-toggle {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--gray);
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.password-toggle:hover {
    color: var(--primary);
}

.password-toggle i {
    font-size: 16px;
}

/* Исправления для полей ввода с иконками */
.input-with-icon {
    position: relative;
}

.input-with-icon .form-control {
    padding-right: 45px !important;
}

/* Исправления для форм авторизации/регистрации */
.auth-page .form-control {
    padding: 12px 15px 12px 45px !important;
    height: 48px;
    font-size: 16px;
}

.auth-page .input-with-icon i {
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

/* Исправления для страницы регистрации */
.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 768px) {
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* Исправления для индикаторов валидации */
.is-invalid {
    border-color: #dc3545 !important;
}

.is-invalid:focus {
    box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.25) !important;
}

.invalid-feedback {
    display: block;
    color: #dc3545;
    font-size: 14px;
    margin-top: 5px;
}

/* Исправления для чекбоксов и радио-кнопок */
.checkbox-label,
.radio-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--dark);
    font-size: 14px;
    margin-bottom: 10px;
}

.checkbox-label input,
.radio-label input {
    display: none;
}

.checkmark,
.radiomark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--light-gray);
    border-radius: 4px;
    margin-right: 10px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.radiomark {
    border-radius: 50%;
}

.checkbox-label input:checked ~ .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.radio-label input:checked ~ .radiomark {
    border-color: var(--primary);
}

.checkmark::after {
    content: '';
    position: absolute;
    display: none;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.radiomark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    display: none;
}

.checkbox-label input:checked ~ .checkmark::after,
.radio-label input:checked ~ .radiomark::after {
    display: block;
}

/* Улучшение для модальных окон */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalFadeIn 0.3s ease;
}

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

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--light-gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    font-size: 20px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray);
    cursor: pointer;
    font-size: 20px;
    padding: 5px;
}

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

.modal-body {
    padding: 20px;
}

.badge-light {
    background: white;
    color: var(--dark);
}

/* Стили для формы добавления задания */
.form-text {
    display: block;
    margin-top: 5px;
    color: var(--gray);
    font-size: 12px;
}

.upload-tips {
    background: rgba(76, 201, 240, 0.1);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-top: 30px;
    border-left: 4px solid var(--success);
}

.upload-tips p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-weight: 500;
}

.upload-tips i {
    color: var(--warning);
}

.upload-tips ul {
    margin: 0;
    padding-left: 20px;
}

.upload-tips li {
    margin-bottom: 5px;
    color: var(--gray);
    font-size: 14px;
}

.page-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--dark);
}

.input-with-icon {
    position: relative;
}

.input-with-icon i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.input-with-icon .form-control {
    padding-right: 45px;
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
    
    .form-section {
        padding: 20px;
    }
    
    .upload-card {
        min-height: 200px;
        padding: 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}

/* Стили для статусов загрузки */
.upload-status {
    display: none;
    padding: 10px;
    margin-top: 10px;
    border-radius: 8px;
    font-size: 12px;
}

.upload-status.success {
    display: block;
    background: rgba(76, 201, 240, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}

.upload-status.error {
    display: block;
    background: rgba(247, 37, 133, 0.1);
    color: var(--danger);
    border: 1px solid var(--danger);
}

/* Стили для превью изображений */
.preview-container img {
    transition: all 0.3s ease;
}

.preview-container:hover img {
    transform: scale(1.05);
}

.remove-image {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.preview-container:hover .remove-image {
    opacity: 1;
}

/* Стили для формы в фокусе */
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
    outline: none;
}

/* Стили для выбранных опций */
select.form-control option:checked {
    background: var(--primary);
    color: white;
}

/* Стили для заголовков формы */
.form-section h2 {
    font-size: 22px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--light-gray);
}

.form-section h2 i {
    font-size: 20px;
    width: 30px;
    text-align: center;
}