/* =========================================
   ESTech - Tech Minimalism CSS (Dark Mode)
   ========================================= */

:root {
    --bg-color: #0a0a0a;       
    --bg-accent: #161616;      
    --text-primary: #ffffff;   
    --text-secondary: #b3b3b3; 
    --border-color: rgba(255, 255, 255, 0.2); 
    --glass-bg: rgba(10, 10, 10, 0.75); 
    --font-family: 'Inter', 'Segoe UI', Roboto, sans-serif;
    --transition: all 0.3s ease-in-out;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-family);
}

html {
    scroll-behavior: smooth; 
    background-color: var(--bg-color);
    color: var(--text-primary);
}

body {
    overflow-x: hidden; 
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* =========================================
   КНОПКИ: Сквадраченный круг (Squircle)
   ========================================= */
.btn-skeletal {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 26px;
    background-color: transparent; 
    color: var(--text-primary);
    border: 2px solid var(--border-color); 
    border-radius: 8px; 
    font-weight: 600;
    font-size: 14px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    text-decoration: none;
    overflow: hidden; 
    z-index: 1;
    transition: color 0.4s ease, border-color 0.4s ease;
}

.btn-skeletal::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--text-primary); 
    border-radius: inherit; 
    z-index: -1;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.btn-skeletal:hover {
    color: #000000;
    border-color: var(--text-primary);
}

.btn-skeletal:hover::before {
    transform: scaleX(1);
}

.btn-large {
    padding: 15px 35px;
    font-size: 16px;
}

.btn-submit {
    width: 100%;
    margin-top: 20px;
    padding: 15px;
    font-size: 16px;
}

/* =========================================
   ОСНОВНЫЕ СТИЛИ (Главная страница)
   ========================================= */
.main-header {
    position: fixed; 
    top: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(12px); 
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    z-index: 1000;
    padding: 15px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-text {
    font-size: 20px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.auth-buttons {
    display: flex;
    gap: 15px;
}

.hero-section {
    height: 100vh; 
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 20px;
    background: radial-gradient(circle at center, #111111 0%, var(--bg-color) 70%);
}

.hero-content {
    max-width: 800px;
    margin-top: 80px; 
}

.hero-content h1 {
    font-size: 56px;
    line-height: 1.1;
    margin-bottom: 25px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero-content p {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.6;
}

.products-section {
    padding: 100px 20px;
    background-color: var(--bg-color);
}

.products-section h2 {
    text-align: center;
    font-size: 40px;
    margin-bottom: 60px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

/* ЖЕЛЕЗОБЕТОННЫЙ ФИКС СЕТКИ: Карточка как ссылка */
a.product-card {
    display: block; 
    color: inherit;
    text-decoration: none;
    height: 100%; 
}

.product-card {
    background-color: var(--bg-accent);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 30px;
    transition: var(--transition);
}

.product-card:hover {
    border-color: #555;
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.02);
    transform: translateY(-5px);
}

/* Базовый стиль для больших картинок в карточках */
.product-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 25px;
    border: 1px solid rgba(255,255,255,0.1);
}

/* ФИКС ИКОНКИ: Если картинка имеет формат .ico, делаем ее маленькой и четкой */
.product-card img[src*=".ico"] {
    width: 60px; 
    height: 60px;
    object-fit: contain; /* Круг полностью помещается */
    border: none; /* Убираем рамку */
    border-radius: 0;
    margin-bottom: 25px;
    display: block;
}

.product-card h3 {
    font-size: 22px;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.product-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.partners-section {
    padding: 80px 20px;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.partners-section h2 {
    font-size: 28px;
    color: var(--text-secondary);
    margin-bottom: 50px;
}

.partners-list {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 80px;
    flex-wrap: wrap;
    opacity: 0.6; 
}

.partner-item {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.lead-section {
    padding: 100px 20px;
    background: radial-gradient(circle at bottom, #111111 0%, var(--bg-color) 100%);
}

.lead-content {
    max-width: 550px;
    margin: 0 auto;
    text-align: center;
}

.lead-content h2 {
    font-size: 40px;
    margin-bottom: 20px;
}

.lead-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-form {
    margin-top: 50px;
    text-align: left;
    background-color: var(--bg-accent);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.1);
}

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

.contact-form input {
    width: 100%;
    padding: 15px;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
}

.contact-form input:focus {
    outline: none;
    border-color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.05);
}

.main-footer {
    padding: 60px 20px 30px;
    background-color: var(--bg-color);
    border-top: 1px solid rgba(255,255,255,0.1);
    text-align: center;
}

.footer-contacts {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-contacts h3 {
    color: var(--text-primary);
    font-size: 18px;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.contact-block {
    margin-bottom: 20px;
}

.footer-link {
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--text-primary);
}

.footer-bottom {
    margin-top: 50px;
    padding-top: 25px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 14px;
    color: #555;
}

/* =========================================
   СТРАНИЦА ПРОДУКТА: DataMatrix Scanner Pro
   ========================================= */
.product-hero-section {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px 60px;
    background: radial-gradient(circle at center, #111111 0%, var(--bg-color) 70%);
}

.product-hero-content {
    max-width: 850px;
}

.product-title-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 25px;
    flex-wrap: wrap; 
}

/* ФИКС ИКОНКИ ДЛЯ СТРАНИЦЫ ПРОДУКТА */
.product-icon-large {
    width: 50px; /* Уменьшили размер для четкости */
    height: 50px;
    object-fit: contain; /* Чтобы круг влез идеально */
}

.product-title-wrapper h1 {
    font-size: 48px;
    margin-bottom: 0; 
}

.product-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin: 0 auto 40px;
    line-height: 1.6;
    max-width: 700px;
}

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

.product-details-section {
    padding: 80px 20px 100px;
    background-color: var(--bg-color);
}

.details-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.detail-block {
    background-color: var(--bg-accent);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 12px;
    transition: var(--transition);
}

.detail-block:hover {
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.detail-block h2 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.detail-block p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 16px;
}

/* =========================================
   FAQ (Аккордеон)
   ========================================= */
.faq-section {
    padding: 80px 20px 120px;
    background-color: var(--bg-accent); 
    border-top: 1px solid rgba(255,255,255,0.05);
}

.faq-header {
    text-align: center;
    margin-bottom: 60px;
}

.faq-subtitle {
    display: block;
    color: #888;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.faq-header h2 {
    font-size: 40px;
    color: var(--text-primary);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.faq-item {
    background-color: var(--bg-color);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
    border-color: rgba(255,255,255,0.3);
}

.faq-question {
    padding: 25px 30px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    list-style: none; 
    outline: none;
    color: var(--text-primary);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 26px;
    font-weight: 300;
    color: var(--text-secondary);
    transition: transform 0.3s ease, color 0.3s ease;
}

details[open] .faq-question::after {
    content: '−';
    transform: translateY(-50%) rotate(180deg);
    color: var(--text-primary);
}

.faq-answer {
    padding: 0 30px 25px;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 16px;
    border-top: 1px solid rgba(255,255,255,0.05);
    margin-top: 10px;
    padding-top: 20px;
    animation: slideDown 0.4s ease-out forwards;
}

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

/* =========================================
   МОБИЛЬНАЯ АДАПТАЦИЯ
   ========================================= */
@media (max-width: 768px) {
    .main-header {
        padding: 15px 20px;
    }
    
    .auth-buttons {
        display: none; 
    }

    .hero-content h1, .product-title-wrapper h1, .faq-header h2 {
        font-size: 32px;
    }

    .products-grid, .details-container {
        grid-template-columns: 1fr; 
    }

    .product-action-buttons {
        flex-direction: column;
    }
    
    .faq-question {
        padding: 20px;
        font-size: 16px;
        padding-right: 50px;
    }
    
    .faq-question::after {
        right: 20px;
    }
    
    .faq-answer {
        padding: 0 20px 20px;
    }
}
/* =========================================
   ПАРТНЕРЫ (НАМ ДОВЕРЯЮТ)
   ========================================= */
.partners-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 0;
}

.partner-card {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 240px;          /* Ширина белой карточки (как твой красный квадрат) */
    height: 180px;         /* Высота белой карточки */
    background-color: #ffffff; /* Тот самый белый фон */
    border-radius: 20px;   /* Закругленные углы карточки */
    padding: 20px;         /* Внутренние отступы, чтобы лого не липло к краям */
    opacity: 0.7;          /* Легкая прозрачность в спокойном состоянии */
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3); /* Легкая тень для объема */
    text-decoration: none;
}

.partner-card:hover {
    opacity: 1;
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.6); /* Тень становится больше при наведении */
}

.partner-card img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;   /* Картинка автоматически впишется в квадрат без искажений */
    transition: all 0.3s ease;
}