/* ===== CSS переменные для тем ===== */
:root {
    --bg-body: #f8f9fa;
    --bg-card: #ffffff;
    --bg-section: #ffffff;
    --bg-alt: #f8f9fa;
    --text-primary: #1a2b3c;
    --text-secondary: #2c3e50;
    --text-muted: #5d6d7e;
    --border-color: #e9ecef;
    --shadow: 0 8px 30px rgba(0,0,0,0.06);
    --shadow-hover: 0 12px 36px rgba(26,82,118,0.12);
    --primary: #1a5276;
    --primary-light: #2e86c1;
    --primary-dark: #0e3a52;
    --accent: #3498db;
    --btn-primary-bg: #1a5276;
    --btn-primary-hover: #2e86c1;
    --btn-secondary-bg: #3498db;
    --btn-secondary-hover: #1a5276;
    --hero-bg: linear-gradient(135deg, #eaf2f8 0%, #d4e6f1 100%);
    --header-bg: #ffffff;
    --nav-bg: #f8f9fa;
    --footer-bg: #1a5276;
    --footer-text: #d4e6f1;
    --faq-bg: #f8f9fa;
    --pricing-featured-border: #3498db;
    --pricing-featured-bg: #eaf2f8;
}

[data-theme="dark"] {
    --bg-body: #1a1a2e;
    --bg-card: #2a2a40;
    --bg-section: #1e1e32;
    --bg-alt: #252540;
    --text-primary: #e0e0e0;
    --text-secondary: #cccccc;
    --text-muted: #a0a0b0;
    --border-color: #3a3a55;
    --shadow: 0 8px 30px rgba(0,0,0,0.3);
    --shadow-hover: 0 12px 36px rgba(0,0,0,0.4);
    --primary: #4a8db7;
    --primary-light: #6aa9d4;
    --primary-dark: #2a5f7a;
    --accent: #5ba0d9;
    --btn-primary-bg: #4a8db7;
    --btn-primary-hover: #6aa9d4;
    --btn-secondary-bg: #5ba0d9;
    --btn-secondary-hover: #4a8db7;
    --hero-bg: linear-gradient(135deg, #1a2a40 0%, #2a3a55 100%);
    --header-bg: #1a1a2e;
    --nav-bg: #252540;
    --footer-bg: #0e0e1a;
    --footer-text: #b0b0c8;
    --faq-bg: #252540;
    --pricing-featured-border: #5ba0d9;
    --pricing-featured-bg: #1e2a40;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-body);
    color: var(--text-secondary);
    line-height: 1.6;
    transition: background 0.3s, color 0.3s;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s;
}
a:hover {
    color: var(--primary-light);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

/* ===== BUTTONS ===== */
.btn-primary {
    display: inline-block;
    background: var(--btn-primary-bg);
    color: #fff;
    padding: 14px 36px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
    text-align: center;
}
.btn-primary:hover {
    background: var(--btn-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(26,82,118,0.25);
}
.btn-secondary {
    display: inline-block;
    background: var(--btn-secondary-bg);
    color: #fff;
    padding: 14px 36px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s, transform 0.2s;
    text-align: center;
}
.btn-secondary:hover {
    background: var(--btn-secondary-hover);
    transform: translateY(-2px);
}

/* ===== HEADER ===== */
.header {
    background: var(--header-bg);
    box-shadow: 0 2px 12px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--accent);
    transition: background 0.3s, border-color 0.3s;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    flex-wrap: wrap;
    gap: 12px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}
.logo-icon {
    font-size: 1.8rem;
    color: var(--primary);
}
.logo span {
    color: var(--accent);
}
.header-contacts {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.header-contacts a {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s;
}
.header-contacts a:hover {
    color: var(--primary);
}
.header-phone {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary) !important;
}
.header-phone:hover {
    color: var(--primary-light) !important;
}
.social-icon {
    display: inline-flex;
    align-items: center;
    color: var(--primary);
    font-size: 1.3rem;
    transition: color 0.3s, transform 0.2s;
}
.social-icon:hover {
    color: var(--primary-light);
    transform: scale(1.1);
}
.theme-toggle {
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--primary);
    cursor: pointer;
    padding: 0 4px;
    transition: color 0.3s, transform 0.2s;
}
.theme-toggle:hover {
    color: var(--primary-light);
    transform: rotate(20deg);
}

/* ===== NAV ===== */
.nav {
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s, border-color 0.3s;
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
    padding: 10px 0;
    flex-wrap: wrap;
}
.nav-inner a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 4px 0;
    border-bottom: 2px solid transparent;
    transition: color 0.3s, border-color 0.3s;
}
.nav-inner a:hover {
    color: var(--primary);
    border-bottom-color: var(--accent);
}

/* ===== HERO ===== */
.hero {
    background: var(--hero-bg);
    padding: 60px 0 50px;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s, border-color 0.3s;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}
.hero-content h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 16px;
}
.hero-content h1 span {
    color: var(--accent);
}
.hero-content p {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 90%;
}
.hero-features {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 28px;
    list-style: none;
}
.hero-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: var(--text-secondary);
}
.hero-features li i {
    color: var(--accent);
    font-size: 1.2rem;
}
.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}
.hero-image img {
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.1);
}

/* ===== STATS (счётчики) ===== */
.stats {
    padding: 50px 0;
    background: var(--bg-section);
    transition: background 0.3s;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}
.stat-item .stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
}
.stat-item .stat-label {
    font-size: 1rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ===== CHART ===== */
.chart-section {
    padding: 60px 0 50px;
    background: var(--bg-alt);
    transition: background 0.3s;
}
.chart-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 24px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.chart-wrapper canvas {
    width: 100% !important;
    height: auto !important;
}

/* ===== SECTION TITLES ===== */
.section-title {
    text-align: center;
    margin-bottom: 40px;
}
.section-title h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.section-title h2 span {
    color: var(--accent);
}
.section-title p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 700px;
    margin: 0 auto;
}

/* ===== CARS ===== */
.cars {
    padding: 60px 0 50px;
    background: var(--bg-section);
    transition: background 0.3s;
}
.cars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 28px;
}
.car-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s, border-color 0.3s;
    box-shadow: var(--shadow);
}
.car-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}
.car-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: #eaf2f8;
}
.car-card-body {
    padding: 18px 20px 22px;
}
.car-card-body h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.car-card-body .car-class {
    font-size: 0.85rem;
    color: var(--text-muted);
    background: var(--bg-alt);
    display: inline-block;
    padding: 2px 12px;
    border-radius: 20px;
    margin-bottom: 8px;
}
.car-card-body .car-specs {
    display: flex;
    gap: 14px;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 8px 0 10px;
    flex-wrap: wrap;
}
.car-card-body .car-specs span {
    display: flex;
    align-items: center;
    gap: 4px;
}
.car-card-body .car-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 10px 0 14px;
}
.car-card-body .car-price small {
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.car-card-body .btn-primary {
    width: 100%;
    padding: 12px;
    font-size: 0.95rem;
}

/* ===== ADVANTAGES ===== */
.advantages {
    padding: 60px 0 50px;
    background: var(--bg-alt);
    transition: background 0.3s;
}
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 28px;
}
.advantage-item {
    text-align: center;
    padding: 24px 16px;
    background: var(--bg-card);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s, border-color 0.3s;
    box-shadow: var(--shadow);
}
.advantage-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.advantage-item .icon {
    font-size: 2.8rem;
    color: var(--accent);
    margin-bottom: 12px;
}
.advantage-item h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.advantage-item p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ===== PRICING (тарифы) ===== */
.prices {
    padding: 60px 0 50px;
    background: var(--bg-section);
    transition: background 0.3s;
}
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.pricing-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 30px 24px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s, background 0.3s, border-color 0.3s;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
}
.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}
.pricing-card.featured {
    border: 2px solid var(--pricing-featured-border);
    background: var(--pricing-featured-bg);
    position: relative;
}
.pricing-card .badge {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
    margin-top: 6px;
}
.pricing-header h3 {
    font-size: 1.4rem;
    color: var(--text-primary);
}
.pricing-header .price {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--primary);
    margin: 8px 0 2px;
}
.pricing-header .period {
    font-size: 0.9rem;
    color: var(--text-muted);
}
.pricing-features {
    list-style: none;
    margin: 20px 0 30px;
    text-align: left;
    flex-grow: 1;
}
.pricing-features li {
    padding: 6px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
}
.pricing-features li i {
    color: var(--accent);
    width: 20px;
}
.pricing-card .btn-primary {
    width: 100%;
}

/* ===== REVIEWS ===== */
.reviews {
    padding: 60px 0 50px;
    background: var(--bg-alt);
    transition: background 0.3s;
}
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
}
.review-card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 22px 24px;
    border: 1px solid var(--border-color);
    transition: background 0.3s, border-color 0.3s;
    box-shadow: var(--shadow);
}
.review-card .stars {
    color: #f1c40f;
    font-size: 1.1rem;
    margin-bottom: 6px;
}
.review-card .review-text {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 10px;
}
.review-card .review-author {
    font-weight: 600;
    color: var(--text-primary);
}
.review-card .review-date {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== FAQ ===== */
.faq {
    padding: 60px 0 50px;
    background: var(--faq-bg);
    transition: background 0.3s;
}
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-item {
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: background 0.3s, border-color 0.3s;
}
.faq-question {
    padding: 16px 22px;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s;
}
.faq-question:hover {
    background: var(--bg-alt);
}
.faq-question .arrow {
    font-size: 1.1rem;
    transition: transform 0.3s;
}
.faq-item.open .faq-question .arrow {
    transform: rotate(180deg);
}
.faq-answer {
    padding: 0 22px 20px;
    color: var(--text-secondary);
    display: none;
    line-height: 1.7;
}
.faq-item.open .faq-answer {
    display: block;
}

/* ===== CONTACT ===== */
.contact {
    padding: 60px 0 50px;
    background: var(--bg-section);
    transition: background 0.3s;
}
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}
.contact-info h2 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 16px;
}
.contact-info h2 span {
    color: var(--accent);
}
.contact-info p {
    margin-bottom: 20px;
    color: var(--text-secondary);
}
.contact-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.contact-details .detail {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: var(--text-secondary);
}
.contact-details .detail .emoji {
    font-size: 1.4rem;
    min-width: 32px;
    color: var(--primary);
}
.contact-form {
    background: var(--bg-card);
    padding: 30px 32px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}
.contact-form h3 {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin-bottom: 16px;
}
.contact-form .field {
    margin-bottom: 14px;
}
.contact-form label {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
    background: var(--bg-body);
    color: var(--text-secondary);
    transition: border-color 0.3s, background 0.3s, color 0.3s;
    font-family: inherit;
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}
.contact-form textarea {
    resize: vertical;
    min-height: 100px;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--footer-bg);
    color: var(--footer-text);
    padding: 40px 0 24px;
    transition: background 0.3s, color 0.3s;
}
.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 30px;
}
.footer h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: #fff;
}
.footer p,
.footer a {
    color: var(--footer-text);
    font-size: 0.95rem;
    line-height: 1.8;
}
.footer a:hover {
    color: #fff;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 20px;
    text-align: center;
    font-size: 0.9rem;
    color: var(--footer-text);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 2.2rem;
    }
    .hero-content p {
        max-width: 100%;
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .pricing-grid {
        grid-template-columns: 1fr 1fr;
    }
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    .logo {
        justify-content: center;
    }
    .header-contacts {
        justify-content: center;
        flex-wrap: wrap;
        gap: 12px;
    }
    .nav-inner {
        gap: 14px;
        padding: 8px 0;
    }
    .nav-inner a {
        font-size: 0.85rem;
    }
    .hero {
        padding: 40px 0 30px;
    }
    .hero-content h1 {
        font-size: 1.8rem;
    }
    .hero-features {
        gap: 12px;
    }
    .hero-features li {
        font-size: 0.9rem;
    }
    .section-title h2 {
        font-size: 1.8rem;
    }
    .cars-grid {
        grid-template-columns: 1fr 1fr;
    }
    .advantages-grid {
        grid-template-columns: 1fr 1fr;
    }
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    .contact-form {
        padding: 20px;
    }
}
@media (max-width: 480px) {
    .cars-grid {
        grid-template-columns: 1fr;
    }
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 1.5rem;
    }
    .hero-buttons {
        flex-direction: column;
    }
    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: 100%;
        text-align: center;
    }
    .header-contacts {
        flex-wrap: wrap;
        gap: 8px;
    }
    .header-phone {
        font-size: 1rem;
    }
    .nav-inner {
        gap: 10px;
    }
    .nav-inner a {
        font-size: 0.78rem;
    }
}