/* ===========================
   ПЕРЕМЕННЫЕ И БАЗОВЫЕ СТИЛИ
   =========================== */

:root {
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #f9fafb;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

/* ===========================
   КОНТЕЙНЕР
   =========================== */

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

/* ===========================
   НАВИГАЦИОННОЕ МЕНЮ
   =========================== */

.navbar {
    background: white;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

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

.navbar-brand {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar-logo {
    height: 32px;
    width: auto;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    text-align: center;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    flex-wrap: wrap;
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    background: none;
}

.nav-link:hover {
    color: var(--primary-color);
    background-color: var(--bg-color);
}

.nav-link.active {
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
}

/* ===========================
   ОСНОВНОЙ КОНТЕНТ
   =========================== */

.main-content {
    min-height: calc(100vh - 200px);
    padding: 60px 0;
}

.page {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===========================
   ГЛАВНАЯ СТРАНИЦА
   =========================== */

.hero {
    text-align: center;
    padding: 40px 0;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: 700;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--text-light);
    margin-bottom: 40px;
    font-weight: 500;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-light);
}

.hero-content p {
    margin-bottom: 20px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===========================
   КНОПКИ
   =========================== */

.btn {
    padding: 12px 30px;
    font-size: 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background-color: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===========================
   ОСНОВНЫЕ ЗАГОЛОВКИ СТРАНИЦ
   =========================== */

.page h2 {
    font-size: 36px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.section-intro {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 40px;
    text-align: center;
}

/* ===========================
   СЕТКА КОНТЕНТА
   =========================== */

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.content-block {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.content-block:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.content-block h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 20px;
}

.content-block ul {
    margin-left: 20px;
}

.content-block li {
    margin-bottom: 10px;
    color: var(--text-light);
}

/* ===========================
   КОМАНДА
   =========================== */

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.team-member {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.team-member:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.member-card {
    padding: 30px;
    text-align: center;
}

.member-avatar {
    font-size: 60px;
    margin-bottom: 20px;
}

.member-card h3 {
    color: var(--text-color);
    margin-bottom: 5px;
    font-size: 22px;
}

.member-card .role {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 15px;
    font-size: 14px;
}

.member-bio {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.6;
}

/* ===========================
   БЛОГ
   =========================== */

.blog-posts {
    display: flex;
    flex-direction: column;
    gap: 40px;
    margin-top: 40px;
}

.blog-post {
    background: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    border-left: 5px solid var(--secondary-color);
    transition: all 0.3s ease;
}

.blog-post:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
}

.post-date {
    display: inline-block;
    background-color: var(--accent-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 15px;
}

.blog-post h3 {
    color: var(--text-color);
    margin-bottom: 15px;
    font-size: 26px;
    margin-top: 10px;
}

.blog-post p {
    color: var(--text-light);
    margin-bottom: 15px;
    line-height: 1.8;
}

.blog-post ul {
    margin-left: 20px;
    margin-bottom: 15px;
}

.blog-post li {
    color: var(--text-light);
    margin-bottom: 8px;
}

/* ===========================
   РЕСУРСЫ
   =========================== */

.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.resource-category {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.resource-category:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.resource-category h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 20px;
}

.resource-list {
    list-style: none;
}

.resource-list li {
    margin-bottom: 15px;
}

.resource-list a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.resource-list a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.resource-list a::before {
    content: "→";
    opacity: 0;
    transition: all 0.3s ease;
}

.resource-list a:hover::before {
    opacity: 1;
}

/* ===========================
   ПОДВАЛ
   =========================== */

footer {
    background-color: var(--text-color);
    color: white;
    padding: 40px 0;
    text-align: center;
    margin-top: 60px;
}

footer p {
    margin-bottom: 10px;
    font-size: 14px;
}

footer a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
}

footer a:hover {
    text-decoration: underline;
}

/* ===========================
   АДАПТИВНЫЙ ДИЗАЙН
   =========================== */

@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 15px;
    }

    .nav-menu {
        gap: 15px;
        justify-content: center;
    }

    .nav-link {
        font-size: 12px;
        padding: 6px 10px;
    }

    .hero h2 {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .page h2 {
        font-size: 28px;
    }

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

    .btn {
        width: 100%;
    }

    .content-grid,
    .team-grid,
    .resources-grid {
        grid-template-columns: 1fr;
    }

    .blog-post {
        padding: 25px;
    }

    .blog-post h3 {
        font-size: 20px;
    }

    .main-content {
        padding: 40px 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .nav-menu {
        gap: 10px;
        font-size: 12px;
    }

    .hero h2 {
        font-size: 24px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .page h2 {
        font-size: 22px;
    }

    .section-intro {
        font-size: 16px;
    }

    .member-avatar {
        font-size: 48px;
    }

    .blog-post {
        padding: 20px;
        border-left-width: 3px;
    }
}