:root {
    /* Основная палитра */
    --bg: #e9eef3;
    --panel-bg: #ffffff;
    --text-color: #1e2b37;
    --soft-text: #546e7a;
    --primary: #2c3e50;
    --accent: #4a90a0;
    --border: #d9e2e8;
    --card-shadow: 0 10px 25px -8px rgba(0, 40, 60, 0.1);
    --hover-shadow: 0 20px 35px -10px rgba(0, 40, 60, 0.2);
    --max-width: 1200px;
    --section-padding: 50px;
}

/* Общие стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent);
}

/* Панель с тенями по бокам */
.panel {
    max-width: var(--max-width);
    margin: 30px auto;
    background-color: var(--panel-bg);
    border-radius: 32px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.2);
}

/* Социальные кнопки и телефон */
.top-social-bar {
    width: 100%;
    background-color: #f8fafc;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 12px 50px;
    gap: 15px;
}

.top-social-bar .phone-number {
    margin-right: auto;
    font-weight: 600;
    font-size: 1rem;
    color: var(--primary);
    letter-spacing: 0.3px;
    transition: color 0.2s;
}

.top-social-bar .phone-number:hover {
    color: var(--accent);
}

/* Стили для иконок соцсетей */
.social-icon-link {
    display: inline-block;
    line-height: 0;
    transition: transform 0.2s ease, opacity 0.2s ease;
    opacity: 0.8;
}

.social-icon-link:hover {
    transform: translateY(-3px);
    opacity: 1;
}

.social-icon-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
    display: block;
    border-radius: 8px;
}

/* Header */
header {
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--border);
    padding: 20px 50px;
}

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

header h1 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: -0.5px;
}

nav a {
    margin-left: 35px;
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    color: var(--soft-text);
    transition: color 0.2s;
}

nav a:hover {
    color: var(--primary);
}

/* Hero */
.hero {
    padding: var(--section-padding) 50px;
    border-bottom: 1px solid var(--border);
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #ffffff 0%, #f9fcff 100%);
}

.hero::before {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background-image: url('../images/back/russiangerb.png');
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    opacity: 0.10;
    pointer-events: none;
    z-index: 0;
}

.hero h2,
.hero p,
.hero .btn {
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: 2.4rem;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--primary);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.hero p {
    font-size: 1.1rem;
    color: var(--soft-text);
    max-width: 750px;
    margin: 0 auto 30px auto;
}

/* Кнопка */
.btn {
    display: inline-block;
    background-color: var(--primary);
    color: #fff;
    padding: 14px 38px;
    border-radius: 40px;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid transparent;
    transition: all 0.25s ease;
    box-shadow: 0 4px 10px rgba(44, 62, 80, 0.15);
}

.btn:hover {
    background-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(74, 144, 160, 0.25);
    color: #fff;
}

/* Услуги */
.services {
    padding: var(--section-padding) 50px;
}

.services h2 {
    font-size: 2rem;
    margin-bottom: 15px;
    color: var(--primary);
}

.services > p {
    font-size: 1.1rem;
    color: var(--soft-text);
    margin-bottom: 40px;
    max-width: 700px;
}

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

.service-card {
    background-color: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 35px 25px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: var(--card-shadow);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--hover-shadow);
    border-color: transparent;
}

.service-icon {
    margin-bottom: 20px;
}

.service-icon svg {
    width: 60px;
    height: 60px;
    opacity: 0.9;
    transition: transform 0.2s;
}

.service-card:hover .service-icon svg {
    transform: scale(1.05);
}

.service-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary);
}

.service-card p {
    font-size: 1rem;
    color: var(--soft-text);
    line-height: 1.6;
}

/* Документы и Контакты */
.documents,
.contacts {
    padding: var(--section-padding) 50px;
    background-color: #f9fcff;
    border-radius: 0;
    margin-bottom: 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.documents h2,
.contacts h2 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--primary);
}

.documents ul {
    list-style-type: none;
    margin-left: 0;
    margin-bottom: 20px;
}

.documents li {
    margin-bottom: 12px;
    color: var(--soft-text);
    padding-left: 28px;
    position: relative;
}

.documents li::before {
    content: "✓";
    color: var(--accent);
    font-weight: 700;
    position: absolute;
    left: 0;
    top: -1px;
}

/* FAQ + Почему выбирают нас */
.faq-and-why .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    padding: 50px;
}

.faq-column h2,
.why-column h2 {
    font-size: 2rem;
    margin-bottom: 30px;
    color: var(--primary);
}

/* FAQ */
.faq-column {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 15px 0;
}

.faq-question {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--primary);
    cursor: pointer;
    position: relative;
    padding-right: 30px;
    margin: 0;
    transition: color 0.2s;
}

.faq-question:hover {
    color: var(--accent);
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.8rem;
    font-weight: 300;
    line-height: 1;
    color: var(--accent);
    transition: transform 0.2s;
}

.faq-item.active .faq-question::after {
    content: '−';
    transform: translateY(-50%) scale(1.2);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease, opacity 0.3s;
    padding: 0;
    color: var(--soft-text);
    opacity: 0.8;
}

.faq-item.active .faq-answer {
    padding: 15px 0 5px 0;
    max-height: 500px;
    opacity: 1;
}

/* Почему выбирают нас */
.why-column {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: 0;
}

.why-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    font-weight: 400;
    font-size: 1.05rem;
    color: var(--text-color);
    margin-bottom: 18px;
    line-height: 1.5;
}

.why-icon {
    color: var(--accent);
    font-weight: 700;
    font-size: 1.3rem;
    flex-shrink: 0;
    width: 24px;
    text-align: center;
}

/* Footer */
footer {
    padding: 25px 50px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--soft-text);
    border-top: 1px solid var(--border);
    background-color: #f8fafc;
}

/* Адаптив */
@media (max-width: 900px) {
    .faq-and-why .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 600px) {
    .panel {
        border-radius: 20px;
        margin: 15px;
    }

    header .header-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 15px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    nav {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }

    nav a {
        margin: 0;
        font-size: 0.85rem;
    }

    .top-social-bar {
        padding: 10px 20px;
        flex-wrap: nowrap;
        align-items: center;
    }

    .top-social-bar .phone-number {
        margin-right: auto;
        font-size: 0.9rem;
    }

    .social-icon-link {
        margin-left: 5px;
        margin-right: 0;
    }

    .social-icon-img {
        width: 26px;
        height: 26px;
    }

    .hero h2 {
        font-size: 1.8rem;
    }

    .hero,
    .services,
    .documents,
    .faq-and-why .container,
    .contacts {
        padding: 40px 20px;
    }

    .hero::before {
        width: 150px;
        height: 150px;
    }

    .services-grid {
        gap: 20px;
    }

    .service-card {
        padding: 25px 15px;
    }

    .service-card h3 {
        font-size: 1.2rem;
    }
}