/* Оптимизированные основные стили путь: href="./static/css/style.css"*/

/* Color System */
:root {
    --primary-dark: #2c3e50;
    --primary: #34495e;
    --primary-light: #3498db;
    --primary-hover: #2980b9;

    --background: #f8f9fa;
    --background-alt: #ecf0f1;
    --border: #bdc3c7;

    --success: #27ae60;
    --danger: #e74c3c;
    --warning: #f39c12;
    --danger-hover: #c0392b;

    --text-secondary: #7f8c8d;
    --text-muted: #95a5a6;
    --text-dark: #1a2530;
    --white: #ffffff;
    --success-hover: #219a52;
    /* Производные цвета для алертов */
    --danger-alert-bg: rgba(231, 76, 60, 0.1);
    --danger-alert-text: #c0392b;
    /* var(--danger-hover) */
    --danger-alert-border: rgba(52, 152, 219, 0.3);

    --success-alert-bg: rgba(39, 174, 96, 0.1);
    --success-alert-text: #219a52;
    --success-alert-border: rgba(39, 174, 96, 0.3);
}

/* Базовые стили */
html {
    font-family: Arial, sans-serif;
    height: 100%;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--background);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Навигационное меню */
.lad-nav {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    border-bottom: 2px solid var(--text-dark);
    padding: 8px 15px;
    position: relative;
}

.nav-toggle {
    display: none;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-hover));
    border: 2px solid var(--primary-hover);
    color: var(--white);
    font-size: 20px;
    padding: 10px;
    border-radius: 6px;
    cursor: pointer;
    margin: 0 auto 10px;
    width: 100%;
}

.lad-nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.lad-nav ul li {
    display: inline-block;
}

.lad-nav ul li a {
    padding: 12px 20px;
    text-decoration: none;
    color: var(--background-alt);
    font-weight: bold;
    font-size: 16px;
    border: 2px solid var(--primary-light);
    border-radius: 8px;
    transition: all 0.3s ease;
    display: block;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    text-align: center;
}

.lad-nav ul li a:hover {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-hover));
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.lad-nav ul li a.active {
    background: linear-gradient(135deg, var(--danger), var(--danger-hover));
    border-color: var(--danger-hover);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

/* Основной контейнер */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    flex: 1;
}

/* Приветственная секция */
.welcome-section {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-hover));
    color: var(--white);
    padding: 40px;
    border-radius: 10px;
    margin-bottom: 30px;
    text-align: center;
}

.welcome-section h1 {
    margin: 0 0 15px 0;
    font-size: 2.5em;
}

.welcome-section p {
    font-size: 1.2em;
    opacity: 0.9;
    margin-bottom: 20px;
}

.cta-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    padding: 12px 25px;
    background: var(--white);
    color: var(--primary-light);
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background: var(--background);
    transform: translateY(-2px);
}

.cta-button.primary {
    background: var(--success);
    color: var(--white);
}

.cta-button.primary:hover {
    background: var(--success-hover);
}

/* Секция статистики */
.stats-section {
    background: var(--background);
    padding: 30px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.stats-section h2 {
    text-align: center;
    margin-bottom: 25px;
    color: var(--primary-dark);
}

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

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.stat-number {
    font-size: 2em;
    font-weight: bold;
    color: var(--primary-light);
    margin: 0;
}

.stat-label {
    color: var(--text-secondary);
    margin: 5px 0 0 0;
}

/* Секция статей */
.articles-section {
    margin-bottom: 40px;
}

.articles-section h2 {
    margin-bottom: 25px;
    color: var(--primary-dark);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.article-card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
}

.article-content {
    padding: 20px;
}

.article-category {
    background: var(--primary-light);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: bold;
    display: inline-block;
    margin-bottom: 10px;
}

.article-title {
    font-size: 1.3em;
    margin: 0 0 10px 0;
    color: var(--primary-dark);
}

.article-meta {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 15px;
}

.article-excerpt {
    color: var(--primary);
    line-height: 1.6;
}

.read-more {
    display: inline-block;
    margin-top: 15px;
    color: var(--primary-light);
    text-decoration: none;
    font-weight: bold;
}

.read-more:hover {
    text-decoration: underline;
}

.no-articles {
    text-align: center;
    padding: 40px;
    background: var(--background);
    border-radius: 8px;
}

.no-articles p {
    color: var(--text-secondary);
    font-size: 1.1em;
}

/* CTA секция */
.cta-section {
    text-align: center;
    margin: 50px 0;
    background: linear-gradient(135deg, var(--background-alt), #dfe6e9);
    padding: 40px;
    border-radius: 10px;
    border: 2px solid var(--border);
}

.cta-section h2 {
    color: var(--primary-dark);
    margin-bottom: 20px;
    font-size: 2em;
}

.cta-section p {
    color: var(--primary);
    margin-bottom: 25px;
    font-size: 1.2em;
    line-height: 1.6;
}

/* Подвал */
.main-footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: 30px 0;
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
    flex: 1;
}

.footer-container p:first-child {
    margin-bottom: 10px;
}

.footer-container p:last-child {
    opacity: 0.8;
}

.footer-links {
    margin-bottom: 20px;
}

.footer-links .cta-button {
    margin: 8px;
    padding: 12px 25px;
    display: inline-block;
    background: var(--primary-light);
    color: var(--white);
    border: 2px solid var(--primary-hover);
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

.footer-links .cta-button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

.footer-slogan {
    opacity: 0.8;
    margin-top: 15px;
}

/* Общие стили форм и кнопок */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group label {
    font-weight: bold;
    color: var(--primary-dark);
    font-size: 14px;
}

.form-input {
    padding: 12px 15px;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: var(--background);
    width: 100%;
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-light);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.form-input.error {
    border-color: var(--danger);
    background: var(--danger);
    opacity: 0.1;
}

.form-select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--white);
    color: var(--primary-dark);
    font-size: 14px;
}

/* Кнопки */
.btn-primary,
.btn-secondary,
.btn-danger {
    padding: 12px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 14px;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--text-secondary);
    transform: translateY(-2px);
}

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

.btn-danger:hover {
    background: var(--danger-hover);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 8px 12px;
    font-size: 12px;
}

/* Алерты */
.alert {
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-error {
    background-color: var(--danger-alert-bg);
    color: var(--danger-alert-text);
    border: 1px solid var(--danger-alert-border);
}

.alert-success {
    background-color: var(--success-alert-bg);
    color: var(--success-alert-text);
    border: 1px solid var(--success-alert-border);
}

/* Индикаторы пароля */
.password-strength {
    height: 4px;
    background: var(--background-alt);
    border-radius: 2px;
    margin-top: 5px;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0%;
    transition: width 0.3s ease;
    background: var(--danger);
}

.password-strength-bar.weak {
    background: var(--danger);
    width: 33%;
}

.password-strength-bar.medium {
    background: var(--warning);
    width: 66%;
}

.password-strength-bar.strong {
    background: var(--success);
    width: 100%;
}

.password-hint {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Чекбоксы и условия */
.terms-checkbox {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 10px 0;
}

.terms-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

.terms-checkbox label {
    font-size: 14px;
    color: var(--primary-dark);
    cursor: pointer;
}

.terms-text {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 5px;
    margin-bottom: 20px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
}

/* Адаптивность */
@media (max-width: 1024px) {
    .lad-nav ul li a {
        font-size: 18px;
        padding: 14px 18px;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .lad-nav ul {
        flex-direction: column;
        display: none;
        gap: 8px;
    }

    .lad-nav ul.active {
        display: flex;
    }

    .lad-nav ul li {
        width: 100%;
    }

    .lad-nav ul li a {
        font-size: 20px;
        padding: 16px;
        width: 100%;
        box-sizing: border-box;
    }

    .welcome-section {
        padding: 20px;
    }

    .welcome-section h1 {
        font-size: 2em;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .form-group {
        margin-bottom: 15px;
    }

    .cta-section {
        padding: 25px 15px;
    }

    .footer-links .cta-button {
        display: block;
        margin: 10px auto;
        max-width: 200px;
    }

    .cta-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .main-container {
        padding: 10px;
    }

    .welcome-section h1 {
        font-size: 1.8em;
    }

    .lad-nav ul li a {
        font-size: 22px;
        padding: 18px;
    }

    .nav-toggle {
        font-size: 24px;
        padding: 12px;
    }

    .form-input {
        padding: 10px;
        font-size: 14px;
    }

    .cta-section h2 {
        font-size: 1.6em;
    }

    .cta-section p {
        font-size: 1em;
    }

    .btn-primary,
    .btn-secondary,
    .btn-danger {
        padding: 10px 15px;
        font-size: 13px;
    }
}

/* Анимации */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card {
    animation: fadeIn 0.5s ease;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: var(--white);
    margin: 5% auto;
    padding: 20px;
    border: 2px solid var(--border);
    width: 90%;
    max-width: 500px;
    border-radius: 8px;
    position: relative;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.close {
    color: var(--text-secondary);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    position: absolute;
    right: 15px;
    top: 10px;
}

.close:hover,
.close:focus {
    color: var(--primary-dark);
}

.char-counter {
    text-align: right;
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 5px;
}

@media (max-width: 600px) {
    .modal-content {
        margin: 10% 5%;
        width: 90%;
    }
}

    .modal {
        display: none;
        position: fixed;
        z-index: 1000;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.5);
    }

    .modal-content {
        background-color: var(--white);
        margin: 5% auto;
        padding: 20px;
        border: 2px solid var(--border);
        width: 90%;
        max-width: 500px;
        border-radius: 8px;
        position: relative;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .close {
        color: var(--text-secondary);
        float: right;
        font-size: 28px;
        font-weight: bold;
        cursor: pointer;
        position: absolute;
        right: 15px;
        top: 10px;
    }

    .close:hover,
    .close:focus {
        color: var(--primary-dark);
    }

    .char-counter {
        text-align: right;
        font-size: 12px;
        color: var(--text-secondary);
        margin-top: 5px;
    }

    @media (max-width: 600px) {
        .modal-content {
            margin: 10% 5%;
            width: 90%;
        }
    }