/*
 * CSS для сайта детектора дронов SD 001
 * Сгенерировано: Gemini
 */

/* ======== 1. ГЛОБАЛЬНЫЕ СТИЛИ И ПЕРЕМЕННЫЕ ======== */
:root {
    --bg-dark: #1c1f26; /* Темный фон */
    --bg-medium: #2a2d35; /* Средний фон для карточек */
    --border-color: #40444c; /* Цвет границ */
    --text-primary: #e6e7e9; /* Основной текст */
    --text-secondary: #9ea3ae; /* Второстепенный текст */
    --accent-blue: #4080FF; /* Синий акцент */
    --accent-blue-hover: #5591ff; /* Синий акцент при наведении */
    --accent-green: #349A76; /* Зеленый для цен */
    --accent-red: #C44542; /* Красный для цен */
    --font-main: 'Inter', sans-serif;
    --font-headings: 'Roboto', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

section:nth-of-type(even) {
    background-color: var(--bg-medium);
}

.section-title {
    font-family: var(--font-headings);
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-primary);
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: transparent;
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
}

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

.btn-large {
    padding: 15px 30px;
    font-size: 18px;
    background-color: var(--accent-blue);
    color: white;
}

.btn-large:hover {
    background-color: var(--accent-blue-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(64, 128, 255, 0.2);
}

/* ======== 2. ШАПКА ======== */
.header {
    background-color: rgba(28, 31, 38, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-headings);
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

.main-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: var(--accent-blue);
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-contact .address-text {
    color: var(--text-secondary);
    font-size: 14px;
}

.burger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.burger-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* ======== 3. ОСНОВНЫЕ БЛОКИ ======== */

/* Блок Hero */
.hero-section {
    padding-top: 100px;
}
.hero-container {
    display: flex;
    align-items: center;
    gap: 50px;
}
.hero-content {
    flex: 1;
}
.hero-content h1 {
    font-family: var(--font-headings);
    font-size: 48px;
    margin-bottom: 20px;
}
.hero-content .subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}
.hero-advantages {
    list-style: none;
    margin-bottom: 40px;
}
.hero-advantages li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 16px;
}
.hero-advantages i {
    color: var(--accent-blue);
    font-size: 20px;
    width: 25px;
    text-align: center;
}
.hero-image {
    flex: 1;
    text-align: center;
}
.hero-image img {
    max-width: 100%;
    height: auto;
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

/* Блок характеристик (табы) */
.tabs {
    max-width: 800px;
    margin: 0 auto;
}
.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 30px;
}
.tab-button {
    padding: 12px 25px;
    font-size: 16px;
    font-weight: 600;
    border: 2px solid var(--border-color);
    background-color: transparent;
    color: var(--text-secondary);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}
.tab-button:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}
.tab-button.active {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}
.tab-content {
    display: none;
    background-color: var(--bg-dark);
    padding: 30px;
    border-radius: 12px;
}
.tab-content.active {
    display: block;
}
.specs-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}
.specs-list li {
    display: flex;
    align-items: center;
    gap: 15px;
}
.specs-list i {
    font-size: 22px;
    color: var(--accent-blue);
}

/* Блок деталей (текст + картинка) */
.details-container {
    display: flex;
    align-items: center;
    gap: 50px;
}
.details-text { flex: 1; }
.details-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}
.details-image { 
    flex: 0 0 40%;
    text-align: center;
}
.details-image img {
    max-width: 100%;
    border-radius: 12px;
}

/* Блок 6 преимуществ */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.feature-item {
    background-color: var(--bg-dark);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, box-shadow 0.3s;
}
.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.2);
}
.feature-item i {
    font-size: 40px;
    color: var(--accent-blue);
    margin-bottom: 20px;
}
.feature-item h3 {
    font-size: 22px;
    margin-bottom: 10px;
}
.feature-item p {
    color: var(--text-secondary);
}

/* Блок комплектации */
.package-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    background-color: var(--bg-dark);
    padding: 40px;
    border-radius: 12px;
}
.package-content ul, .package-setup ol {
    list-style: none;
}
.package-content li, .package-setup li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
}
.package-content i {
    color: var(--accent-blue);
}
.package-setup span {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 30px;
    height: 30px;
    min-width: 30px;
    border-radius: 50%;
    background-color: var(--accent-blue);
    color: white;
    font-weight: 700;
}

/* Блок применения */
.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.application-item {
    background-color: var(--bg-medium);
    padding: 25px;
    border-radius: 12px;
    border-left: 4px solid var(--accent-blue);
}
.application-item h3 {
    font-size: 20px;
    margin-bottom: 10px;
}
.application-item p {
    color: var(--text-secondary);
}

/* Блок требований */
.requirements-list {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    list-style: none;
}
.requirements-list li {
    background-color: var(--bg-medium);
    padding: 20px 30px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 18px;
    font-weight: 500;
}
.requirements-list i {
    color: var(--accent-blue);
    font-size: 24px;
}

/* Блок цен (адаптация предоставленных стилей) */
.pricing-section {
    background-color: var(--bg-dark);
}
.price-block {
    max-width: 900px;
    background-color: var(--bg-medium);
    border-radius: 16px;
    padding: 35px;
    margin: 0 auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    overflow: hidden;
}
.price-block .section-title {
    font-size: 26px;
    margin-bottom: 10px;
}
.price-block .subtitle {
    text-align: center;
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 35px;
}
.chart-container {
    position: relative;
    height: 350px;
    width: 100%;
    margin-bottom: 40px;
}
.price-table { width: 100%; border-collapse: collapse; }
.price-table th, .price-table td { padding: 18px 12px; text-align: left; border-bottom: 1px solid var(--border-color); }
.price-table thead th { font-size: 13px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; }
.price-table tbody tr { transition: background-color 0.3s ease; }
.price-table tbody tr:hover { background-color: #3a414c; }
.store-name { font-weight: 600; font-size: 16px; display: flex; align-items: center; }
.store-name i { margin-right: 12px; color: var(--text-secondary); font-size: 18px; width: 20px; text-align: center;}
.price-cell { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; }
.price { font-weight: 700; font-size: 18px; color: var(--text-primary); }
.price-change { font-size: 13px; font-weight: 600; display: flex; align-items: center; }
.price-change i { margin-right: 5px; }
.price-change.down { color: var(--accent-green); }
.price-change.up { color: var(--accent-red); }
.delivery-info { font-size: 14px; color: var(--text-secondary); }
.buy-button { display: inline-block; background-color: #434a55; color: var(--text-primary); padding: 10px 20px; border-radius: 8px; text-decoration: none; font-weight: 600; text-align: center; transition: all 0.2s ease; border: none; }
.buy-button:hover { background-color: #505864; transform: scale(1.05); }
.price-table tr.highlight { background-color: rgba(64, 128, 255, 0.1); border-left: 4px solid var(--accent-blue); border-right: 4px solid var(--accent-blue); }
.price-table tr.highlight .store-name i { color: var(--accent-blue); }
.price-table tr.highlight .buy-button { background-color: var(--accent-blue); color: #fff; }
.price-table tr.highlight .buy-button:hover { background-color: var(--accent-blue-hover); box-shadow: 0 2px 15px rgba(64, 128, 255, 0.3);}

/* Блок галереи */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}
.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
    transition: transform 0.3s, filter 0.3s;
}
.gallery-item:hover img {
    transform: scale(1.05);
    filter: brightness(1.1);
}

/* Блок FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background-color: var(--bg-medium);
    border-radius: 8px;
    margin-bottom: 10px;
    border: 1px solid var(--border-color);
}
.faq-item summary {
    font-size: 18px;
    font-weight: 600;
    padding: 20px;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.faq-item summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    transition: transform 0.3s ease;
}
.faq-item details[open] summary::after {
    transform: rotate(180deg);
}
.faq-answer {
    padding: 0 20px 20px 20px;
    color: var(--text-secondary);
}

/* Блок отзывов */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}
.review-card {
    background-color: var(--bg-dark);
    padding: 25px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}
.review-author {
    font-weight: 700;
    font-size: 18px;
    margin-bottom: 15px;
}
.review-text {
    color: var(--text-secondary);
    font-style: italic;
}

/* Блок контактов */
.contact-section {
    text-align: center;
}
.contact-container p {
    max-width: 600px;
    margin: 0 auto 30px auto;
    font-size: 18px;
    color: var(--text-secondary);
}
.contact-info {
    margin-bottom: 40px;
}
.contact-info p {
    font-size: 16px;
    margin-bottom: 10px;
}
.contact-info i {
    color: var(--accent-blue);
    margin-right: 10px;
}

/* ======== 4. ФУТЕР ======== */
.footer {
    background-color: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
}
.footer p {
    margin-bottom: 10px;
}
.privacy-notice {
    font-size: 12px;
    opacity: 0.7;
}


/* ======== 5. АДАПТИВНОСТЬ ======== */

/* Планшеты */
@media (max-width: 992px) {
    .section-title { font-size: 32px; }
    .hero-content h1 { font-size: 40px; }
    
    .main-nav { display: none; }
    .header-contact .address-text { display: none; }
    .burger-menu { display: block; }
    
    .main-nav.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--bg-medium);
        flex-direction: column;
        padding: 20px;
        text-align: center;
    }
    .main-nav.active ul {
        flex-direction: column;
    }

    .hero-container, .details-container {
        flex-direction: column;
        text-align: center;
    }
    .details-image {
        order: -1;
    }
    .hero-advantages {
        display: inline-block;
        text-align: left;
    }
}

/* Мобильные устройства */
@media (max-width: 768px) {
    section { padding: 60px 0; }
    .section-title { font-size: 28px; margin-bottom: 30px; }
    .hero-content h1 { font-size: 32px; }
    .btn-large { padding: 12px 25px; font-size: 16px; }

    .package-container {
        grid-template-columns: 1fr;
    }
    
    .price-table thead {
        display: none;
    }
    .price-table tr {
        display: block;
        margin-bottom: 20px;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        padding: 10px;
    }
    .price-table td {
        display: flex;
        justify-content: space-between;
        padding: 10px 5px;
        border-bottom: none;
    }
    .price-table td::before {
        content: attr(data-label);
        font-weight: bold;
        margin-right: 10px;
    }
    .price-table td:last-child {
        justify-content: center;
    }
    /* Добавляем data-label в HTML для мобильных таблиц, если потребуется */
    /* <td data-label="Магазин">...</td> */
}