/* ===== ОСНОВНЫЕ ПЕРЕМЕННЫЕ ===== */
:root {
    --accent: #00b894;           /* Акцентный цвет */
    --dark-bg: #0b0b0b;          /* Темный фон */
    --dark-bg-gradient: linear-gradient(135deg, #0b0b0b 0%, #1a1a1a 100%);
    --light-text: #f5f5f5;       /* Светлый текст */
    --gray-text: #b0b0b0;        /* Серый текст */
    --card-bg: #1a1a1a;          /* Фон карточек */
    --border-color: #333;        /* Цвет границ */
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s ease;
}

/* ===== СБРОС СТИЛЕЙ ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark-bg-gradient);
    color: var(--light-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ===== ТИПОГРАФИЯ ===== */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
}

h1 { font-size: 2.5rem; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }

p { margin-bottom: 1rem; color: var(--gray-text); }
a { text-decoration: none; color: inherit; transition: var(--transition); }
.text-center { text-align: center; }

/* ===== КНОПКИ ===== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 500;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary { background-color: var(--accent); color: white; }
.btn-primary:hover { background-color: #00a085; transform: translateY(-2px); box-shadow: var(--shadow); }

.btn-secondary { background-color: transparent; color: var(--accent); border: 2px solid var(--accent); }
.btn-secondary:hover { background-color: rgba(0, 184, 148, 0.1); transform: translateY(-2px); }

/* ===== ШАПКА ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(11, 11, 11, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    border-bottom: 1px solid rgba(51, 51, 51, 0.3);
}

.header-content { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-img { height: 40px; width: auto; }
.logo-text { font-size: 1.2rem; font-weight: 600; }

.nav-list { display: flex; list-style: none; gap: 30px; }
.nav-link { color: var(--gray-text); font-weight: 500; position: relative; padding: 5px 0; }
.nav-link:hover { color: var(--light-text); }
.nav-link::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
    background-color: var(--accent); transition: width 0.3s ease;
}
.nav-link:hover::after { width: 100%; }

.phone-link {
    display: flex; align-items: center; gap: 8px; font-weight: 600;
    background-color: rgba(0, 184, 148, 0.1); padding: 8px 15px; border-radius: 5px;
    border: 1px solid rgba(0, 184, 148, 0.3);
}

.menu-toggle { display: none; background: none; border: none; color: var(--light-text); font-size: 1.5rem; }

/* ===== ГЛАВНЫЙ БАННЕР ===== */
.hero { padding: 180px 0 100px; text-align: center; }
.hero-title { font-size: 3rem; margin-bottom: 20px; max-width: 800px; margin: 0 auto 20px; }
.hero-subtitle { font-size: 1.2rem; max-width: 600px; margin: 0 auto 40px; }
.hero-buttons { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
/* ===== СЕКЦИИ ===== */
.section {
    padding: 100px 0;
}

.section-dark {
    background-color: rgba(0, 0, 0, 0.3);
}

.section-title {
    text-align: center;
    margin-bottom: 15px;
}

.section-subtitle {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 50px;
    font-size: 1.1rem;
}

/* ===== УСЛУГИ И ГАРАНТИИ (КАРТОЧКИ) ===== */
.services-grid, .guarantees-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.service-card, .guarantee-card {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.service-card:hover, .guarantee-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
    border-color: var(--accent);
}

.service-icon, .guarantee-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.service-price {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--accent);
    margin-top: 15px;
}

/* ===== КОМПРЕССОРЫ ===== */
.compressors-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.compressor-list { list-style: none; margin: 20px 0 30px; }
.compressor-list li { margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.compressor-list i { color: var(--accent); }

.compressor-features { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 30px; }
.feature {
    display: flex; align-items: center; gap: 8px;
    background-color: rgba(0, 184, 148, 0.1);
    padding: 8px 12px; border-radius: 5px; border: 1px solid rgba(0, 184, 148, 0.2);
    font-size: 0.9rem;
}

.image-placeholder {
    width: 100%; max-width: 400px; height: 300px;
    background-color: var(--card-bg); border: 2px dashed var(--border-color);
    border-radius: 10px; display: flex; flex-direction: column;
    justify-content: center; align-items: center; color: var(--gray-text);
}

/* ===== ПРОЦЕСС РАБОТЫ ===== */
.process-steps { max-width: 800px; margin: 0 auto; }
.step { display: flex; align-items: flex-start; margin-bottom: 40px; position: relative; }
.step:not(:last-child)::after {
    content: ''; position: absolute; left: 25px; top: 60px; bottom: -40px;
    width: 2px; background-color: var(--border-color);
}
.step-number {
    width: 50px; height: 50px; background-color: var(--accent); color: white;
    border-radius: 50%; display: flex; justify-content: center; align-items: center;
    font-size: 1.2rem; font-weight: 600; margin-right: 20px; flex-shrink: 0; z-index: 1;
}

/* ===== КОНТАКТЫ И ФОРМА ===== */
.contacts-content { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.contact-item { display: flex; align-items: flex-start; margin-bottom: 25px; gap: 15px; }
.contact-icon {
    width: 45px; height: 45px; background-color: rgba(0, 184, 148, 0.1);
    border-radius: 50%; display: flex; justify-content: center; align-items: center;
    color: var(--accent); flex-shrink: 0;
}

.social-links { display: flex; gap: 10px; margin-top: 15px; }
.social-link {
    display: flex; align-items: center; gap: 8px; padding: 10px 15px;
    border-radius: 5px; font-weight: 500; font-size: 0.9rem; color: white;
}
.whatsapp { background-color: #25D366; }
.telegram { background-color: #0088cc; }

.contact-form { background-color: var(--card-bg); padding: 30px; border-radius: 10px; border: 1px solid var(--border-color); }
.form-group { margin-bottom: 15px; }
.form-group input, .form-group textarea {
    width: 100%; padding: 12px; background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color); border-radius: 5px; color: white;
}

/* ===== ПОДВАЛ ===== */
.footer { background-color: #000; padding: 40px 0; border-top: 1px solid var(--border-color); }
.footer-content { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }

/* ===== АНИМАЦИИ ===== */
.fade-in { opacity: 0; transform: translateY(20px); animation: fadeIn 0.8s ease forwards; }
.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
@keyframes fadeIn { to { opacity: 1; transform: translateY(0); } }

/* ===== АДАПТИВНОСТЬ ===== */
@media (max-width: 768px) {
    .nav { display: none; width: 100%; }
    .nav.active { display: block; order: 3; margin-top: 20px; }
    .nav-list { flex-direction: column; gap: 10px; }
    .menu-toggle { display: block; }
    .hero-title { font-size: 2rem; }
    .compressors-content, .contacts-content { grid-template-columns: 1fr; }
    .footer-content { flex-direction: column; text-align: center; }
}