/* style.css — Полный редизайн в стиле Microsoft.com */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0066cc;
    --primary-dark: #004a8f;
    --primary-light: #e8f0fe;
    --secondary: #0078d4;
    --accent: #ffb900;
    --bg-light: #f2f2f2;
    --bg-white: #ffffff;
    --bg-dark: #1a1a1a;
    --text-dark: #1a1a1a;
    --text-gray: #5a5a5a;
    --text-light: #8a8a8a;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.08);
    --radius: 8px;
    --transition: all 0.25s ease;
}

body {
    font-family: 'Segoe UI', 'Segoe UI Variable', -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: 400;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== ШАПКА (Microsoft стиль) ===== */
.header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 12px;
    padding-bottom: 12px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.logo-icon {
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--primary);
    letter-spacing: -0.5px;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 300;
    color: var(--text-dark);
    letter-spacing: -0.5px;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
}

.logo-text .blue {
    color: var(--primary);
    font-weight: 400;
}

.nav {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
}

.nav a {
    text-decoration: none;
    color: var(--text-gray);
    font-weight: 300;
    font-size: 0.85rem;
    transition: var(--transition);
    padding: 4px 0;
    border-bottom: 2px solid transparent;
    position: relative;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
    letter-spacing: 0.3px;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav a:hover {
    color: var(--text-dark);
}

.nav a:hover::after {
    width: 100%;
}

.nav-highlight {
    background: var(--primary);
    color: #ffffff !important;
    padding: 6px 18px !important;
    border-radius: 4px !important;
    border-bottom: none !important;
    font-weight: 400 !important;
    letter-spacing: 0.5px !important;
}

.nav-highlight::after {
    display: none !important;
}

.nav-highlight:hover {
    background: var(--primary-dark);
    transform: scale(1.02);
    color: #ffffff !important;
}

/* ===== НОВАЯ КНОПКА "Исходный код ядра с сайта" ===== */
.nav-kernel {
    background: var(--bg-light);
    color: var(--text-dark) !important;
    padding: 6px 18px !important;
    border-radius: 4px !important;
    border: 1px solid var(--border-color) !important;
    border-bottom: none !important;
    font-weight: 300 !important;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
}

.nav-kernel::after {
    display: none !important;
}

.nav-kernel:hover {
    background: var(--primary);
    color: #ffffff !important;
    border-color: var(--primary) !important;
    transform: scale(1.02);
}

/* ===== ГЕРОЙ (Microsoft стиль) ===== */
.hero {
    padding: 60px 0 50px;
    text-align: center;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
}

.hero h1 {
    font-size: 3.8rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 12px;
    color: var(--text-dark);
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
}

.hero h1 .highlight {
    color: var(--primary);
    font-weight: 400;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-gray);
    max-width: 550px;
    margin: 0 auto;
    font-weight: 300;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
    letter-spacing: 0.2px;
}

/* ===== ЗАГОЛОВКИ СЕКЦИЙ ===== */
.section-title {
    font-size: 2.4rem;
    font-weight: 300;
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
}

.section-title .blue {
    color: var(--primary);
    font-weight: 400;
    margin-right: 6px;
}

/* ===== НОВОСТИ ===== */
.news {
    padding: 50px 0;
    background: var(--bg-light);
}

.news-list {
    max-width: 850px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.news-item {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 28px 32px;
    transition: var(--transition);
}

.news-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.news-date {
    font-size: 0.7rem;
    color: var(--primary);
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 6px;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
}

.news-title {
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--text-dark);
    margin-bottom: 8px;
    letter-spacing: -0.01em;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
}

.news-content p {
    color: var(--text-gray);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 10px;
    font-weight: 300;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
}

.news-content code {
    background: var(--bg-light);
    padding: 2px 8px;
    border-radius: 3px;
    font-family: 'Segoe UI', 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--primary);
    border: 1px solid var(--border-color);
    font-weight: 400;
}

.news-code {
    background: var(--bg-dark);
    color: #d4d4d4;
    padding: 12px 16px;
    border-radius: var(--radius);
    font-family: 'Segoe UI', 'Cascadia Code', 'Consolas', monospace;
    font-size: 0.85rem;
    margin-top: 10px;
    border-left: 3px solid var(--primary);
    overflow-x: auto;
    font-weight: 300;
    letter-spacing: 0.2px;
}

/* ===== БЫСТРЫЙ ДОСТУП ===== */
.quick-links {
    padding: 50px 0;
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.quick-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    max-width: 900px;
    margin: 0 auto;
}

.quick-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 300;
    font-size: 0.9rem;
    transition: var(--transition);
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
    letter-spacing: 0.2px;
}

.quick-link:hover {
    background: var(--primary);
    color: #ffffff;
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.quick-link:hover .quick-icon {
    color: #ffffff;
}

.quick-icon {
    font-size: 1.1rem;
    transition: var(--transition);
    font-weight: 300;
}

/* ===== РАЗРАБОТЧИКИ ===== */
.developers {
    padding: 50px 0;
    background: var(--bg-light);
    text-align: center;
}

.dev-subtitle {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 28px;
    font-weight: 300;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
    letter-spacing: 0.2px;
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 4px;
    font-weight: 400;
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
    letter-spacing: 0.3px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: scale(1.02);
}

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

.dev-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.02);
}

/* ===== ФУТЕР ===== */
.footer {
    padding: 28px 0;
    background: var(--bg-dark);
    color: var(--text-light);
    text-align: center;
    font-size: 0.85rem;
    border-top: 3px solid var(--primary);
    font-family: 'Segoe UI', 'Segoe UI Variable', sans-serif;
    font-weight: 300;
    letter-spacing: 0.3px;
}

.footer .blue-text {
    color: var(--primary);
    font-weight: 400;
}

/* ===== АДАПТИВ ===== */
@media (max-width: 1024px) {
    .nav {
        gap: 14px;
    }
    .nav a {
        font-size: 0.8rem;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .header .container {
        flex-direction: column;
        gap: 10px;
    }
    
    .nav {
        gap: 10px;
        justify-content: center;
    }
    
    .nav a {
        font-size: 0.75rem;
    }
    
    .nav-highlight {
        padding: 4px 12px !important;
        font-size: 0.75rem !important;
    }

    .nav-kernel {
        padding: 4px 12px !important;
        font-size: 0.75rem !important;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .news-item {
        padding: 20px;
    }
    
    .news-title {
        font-size: 1.2rem;
    }
    
    .quick-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero p {
        font-size: 0.95rem;
    }
    
    .nav {
        gap: 6px;
    }
    
    .nav a {
        font-size: 0.65rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .quick-grid {
        grid-template-columns: 1fr;
    }
    
    .news-item {
        padding: 16px;
    }
    
    .news-title {
        font-size: 1rem;
    }
    
    .btn {
        padding: 10px 24px;
        font-size: 0.85rem;
    }
}