/* ===== СБРОС И БАЗОВЫЕ СТИЛИ ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563EB;
    --primary-dark: #1E40AF;
    --primary-light: #3B82F6;
    --accent: #10B981;
    --accent-hover: #059669;
    --text-dark: #1F2937;
    --text-gray: #6B7280;
    --text-light: #9CA3AF;
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --bg-gray: #F3F4F6;
    --border: #E5E7EB;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ===== КНОПКИ ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

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

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

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
    width: 100%;
}

/* ===== ШАПКА ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-gray);
    transition: var(--transition);
}

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

.header-cta {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    color: white;
    border-radius: var(--radius);
    font-weight: 500;
    transition: var(--transition);
}

.header-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== ГЕРОИЧЕСКИЙ БЛОК ===== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-gray);
    margin-bottom: 32px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-gray);
}

/* ===== БОЛИ И РЕШЕНИЯ ===== */
.problems {
    padding: 80px 0;
    background: var(--bg-white);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 48px;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.problem-card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.problem-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.problem-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.problem-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
}

.problem-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    background: #FEF2F2;
    color: #DC2626;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

.problem-solution {
    margin-bottom: 16px;
}

.problem-solution h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.problem-solution ul {
    padding-left: 20px;
}

.problem-solution li {
    list-style: disc;
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 4px;
}

.problem-result {
    padding: 12px 16px;
    background: #ECFDF5;
    border-radius: 8px;
    font-size: 14px;
    color: #047857;
}

/* ===== ПРОЦЕСС ===== */
.process {
    padding: 80px 0;
    background: var(--bg-light);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.process-step {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--bg-white);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.process-step:hover {
    box-shadow: var(--shadow-md);
}

.step-number {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    color: white;
    font-weight: 700;
    border-radius: 50%;
}

.step-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.step-content p {
    font-size: 14px;
    color: var(--text-gray);
}

/* ===== ПОЧЕМУ МЫ ===== */
.why-us {
    padding: 80px 0;
    background: var(--bg-white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.advantage-card {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.advantage-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.advantage-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.advantage-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.advantage-card p {
    font-size: 14px;
    color: var(--text-gray);
}

/* ===== КЕЙСЫ ===== */
.cases {
    padding: 80px 0;
    background: var(--bg-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.case-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.case-header {
    padding: 24px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    color: white;
}

.case-number {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.case-header h3 {
    font-size: 18px;
    font-weight: 600;
    margin-top: 8px;
}

.case-content {
    padding: 24px;
}

.case-item {
    margin-bottom: 16px;
}

.case-item:last-child {
    margin-bottom: 0;
}

.case-item strong {
    font-size: 13px;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-item p {
    font-size: 14px;
    color: var(--text-gray);
    margin-top: 4px;
}

/* ===== ЦЕНЫ ===== */
.pricing {
    padding: 80px 0;
    background: var(--bg-white);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pricing-card {
    position: relative;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.pricing-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.pricing-card.popular {
    border: 2px solid var(--primary);
    box-shadow: var(--shadow-md);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 16px;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
    color: white;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.pricing-header h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.pricing-price .price {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.pricing-price .period {
    font-size: 14px;
    color: var(--text-gray);
}

.pricing-features {
    margin-bottom: 24px;
}

.pricing-features li {
    font-size: 14px;
    color: var(--text-gray);
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
}

.pricing-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

.pricing-card .btn {
    width: 100%;
}

.pricing-card.free .pricing-price .price {
    color: var(--accent);
}

/* ===== FAQ ===== */
.faq {
    padding: 80px 0;
    background: var(--bg-light);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-dark);
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-icon {
    font-size: 24px;
    color: var(--primary);
    transition: var(--transition);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    display: none;
    padding: 0 24px 20px;
    font-size: 15px;
    color: var(--text-gray);
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    display: block;
}

/* ===== КОНТАКТЫ ===== */
.contact {
    padding: 80px 0;
    background: var(--bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 16px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-note {
    font-size: 12px;
    color: var(--text-light);
    text-align: center;
}

.form-success {
    text-align: center;
    padding: 48px 24px;
}

.success-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ECFDF5;
    color: #10B981;
    font-size: 32px;
    border-radius: 50%;
}

.form-success h3 {
    font-size: 24px;
    margin-bottom: 8px;
}

.form-success p {
    color: var(--text-gray);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
}

.contact-icon {
    font-size: 32px;
}

.contact-item h4 {
    font-size: 14px;
    color: var(--text-gray);
    margin-bottom: 4px;
}

.contact-item a {
    font-size: 16px;
    font-weight: 500;
    color: var(--primary);
    transition: var(--transition);
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-item p {
    font-size: 16px;
    font-weight: 500;
}

/* ===== ФУТЕР ===== */
.footer {
    padding: 40px 0;
    background: var(--text-dark);
    color: white;
}

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

.footer-logo .logo-text {
    font-size: 18px;
    background: linear-gradient(135deg, #60A5FA, #3B82F6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo p {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 4px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-light);
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

.footer-copy {
    font-size: 13px;
    color: var(--text-light);
}

/* ===== АДАПТИВ ===== */
@media (max-width: 1024px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }

    .header-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .stat-number {
        font-size: 28px;
    }

    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .problems-grid {
        grid-template-columns: 1fr;
    }

    .process-steps {
        grid-template-columns: 1fr;
    }

    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .cases-grid {
        grid-template-columns: 1fr;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 26px;
    }

    .btn-large {
        padding: 14px 24px;
        font-size: 16px;
    }

    .problem-card {
        padding: 20px;
    }

    .pricing-card {
        padding: 20px;
    }
}
/* ===== МОБИЛЬНОЕ МЕНЮ (АДАПТИВ) ===== */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        z-index: 999;
    }

    .nav.active {
        display: flex;
        transform: translateY(0);
        opacity: 1;
    }

    .header-cta {
        position: fixed;
        top: 250px;
        left: 20px;
        right: 20px;
        display: none;
        text-align: center;
        z-index: 999;
    }

    .header-cta.active {
        display: block;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }
}