@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* === БАЗОВЫЕ СТИЛИ === */
:root {
    --color-primary: #0066cc;
    --color-primary-dark: #004c99;
    --color-secondary: #00a86b;
    --color-accent: #ff6b35;
    --color-text: #1a1a1a;
    --color-text-light: #64748b;
    --color-bg: #ffffff;
    --color-bg-light: #f8fafc;
    --color-border: #e2e8f0;
    --spacing-unit: 8px;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: var(--color-text);
    background: var(--color-bg);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 100%;
    margin: 0 auto;
}

/* === HEADER / HERO === */
header {
    position: relative;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.85) 0%, rgba(0, 76, 153, 0.9) 100%), url('2148499200.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: calc(var(--spacing-unit) * 15) calc(var(--spacing-unit) * 5);
    text-align: center;
    color: white;
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.05) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: calc(var(--spacing-unit) * 3);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

header h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 800;
    margin-bottom: calc(var(--spacing-unit) * 3);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: calc(var(--spacing-unit) * 5);
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: inline-block;
    background: var(--color-accent);
    color: white;
    padding: calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 5);
    border-radius: 60px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.4);
}

/* === MAIN CONTENT === */
main {
    background: var(--color-bg);
}

/* === ОБЩИЕ СТИЛИ СЕКЦИЙ === */
section {
    padding: calc(var(--spacing-unit) * 12) calc(var(--spacing-unit) * 3);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto calc(var(--spacing-unit) * 8);
}

.section-label {
    display: inline-block;
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 2);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.section-description {
    font-size: 1.15rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* === СЕКЦИЯ ПРОБЛЕМ === */
.problems {
    background: var(--color-bg-light);
}

/* === СЕКЦИЯ КВИЗА === */
.quiz {
    background: white;
}

.quiz-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-bg-light);
    border-radius: calc(var(--border-radius) * 1.5);
    padding: calc(var(--spacing-unit) * 6);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.quiz-questions {
    position: relative;
}

.quiz-question {
    display: none;
    animation: fadeInUp 0.5s ease;
}

.quiz-question.active {
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quiz-question h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 4);
    line-height: 1.4;
    text-align: center;
}

.quiz-answers {
    display: grid;
    gap: calc(var(--spacing-unit) * 2);
}

.quiz-answer {
    background: #ffffff;
    color: #1a1a1a;
    border: 2px solid #e2e8f0;
    padding: 16px 24px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 500;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    display: block;
    width: 100%;
    margin-bottom: 8px;
    min-height: 50px;
}

.quiz-answer::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 102, 204, 0.1), transparent);
    transition: left 0.5s ease;
}

.quiz-answer:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 102, 204, 0.15);
    border-color: #0066cc;
    color: #0066cc;
}

.quiz-answer:hover::before {
    left: 100%;
}

.quiz-answer:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.2);
}

.quiz-answer.selected {
    background: #0066cc;
    color: white;
    border-color: #0066cc;
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.3);
}

.quiz-progress {
    margin-top: calc(var(--spacing-unit) * 5);
}

.quiz-progress-bar {
    width: 100%;
    height: 8px;
    background: #e2e8f0;
    border-radius: 50px;
    overflow: hidden;
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.quiz-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: 50px;
    transition: width 0.4s ease;
    width: 20%;
}

.quiz-progress-text {
    text-align: center;
    color: var(--color-text-light);
    font-size: 0.95rem;
    font-weight: 500;
}

.quiz-result {
    text-align: center;
    animation: fadeInUp 0.6s ease;
}

.result-content {
    padding: calc(var(--spacing-unit) * 2) 0;
}

.result-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-secondary) 0%, #00865a 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto calc(var(--spacing-unit) * 4);
    color: white;
}

.quiz-result h3 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 3);
    line-height: 1.3;
}

.quiz-result p {
    font-size: 1.15rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.result-cta {
    display: inline-block;
    background: var(--color-primary);
    color: white;
    padding: calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 6);
    border-radius: 60px;
    font-size: 1.2rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.3);
}

.result-cta:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 102, 204, 0.4);
}

.result-note {
    font-size: 0.95rem !important;
    margin-top: calc(var(--spacing-unit) * 3) !important;
    opacity: 0.8;
}

/* === СЕКЦИЯ ПРОБЛЕМ === */

.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
    max-width: 1200px;
    margin: 0 auto;
}

.problem-card {
    background: white;
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary);
}

.problem-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: calc(var(--spacing-unit) * 3);
    color: var(--color-primary);
}

.problem-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 2);
    line-height: 1.3;
}

.problem-card p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* === СЕКЦИЯ РЕШЕНИЯ === */
.solution {
    background: white;
}

.solution-container {
    max-width: 1000px;
    margin: 0 auto;
}

.solution-content {
    text-align: left;
}

.lead {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: calc(var(--spacing-unit) * 6);
    line-height: 1.7;
}

.features-grid {
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 4);
    margin-top: calc(var(--spacing-unit) * 6);
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: calc(var(--spacing-unit) * 5);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 102, 204, 0.1);
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 102, 204, 0.15);
    border-color: var(--color-primary);
}

.feature-image {
    width: 80px;
    height: 80px;
    margin: 0 auto calc(var(--spacing-unit) * 4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 20px;
    padding: calc(var(--spacing-unit) * 2);
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 12px;
}

.feature-content {
    text-align: center;
}

.feature-content h4 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 3);
    line-height: 1.3;
}

.feature-content p {
    color: var(--color-text-light);
    line-height: 1.7;
    font-size: 1.05rem;
}

/* === СЕКЦИЯ ЦЕН === */
.pricing {
    background: var(--color-bg-light);
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
    max-width: 1000px;
    margin: 0 auto calc(var(--spacing-unit) * 5);
}

.pricing-card {
    background: white;
    border: 2px solid var(--color-border);
    border-radius: calc(var(--border-radius) * 1.5);
    padding: calc(var(--spacing-unit) * 5);
    position: relative;
    transition: var(--transition);
}

.pricing-card.featured {
    border-color: var(--color-primary);
    box-shadow: 0 20px 60px rgba(0, 102, 204, 0.15);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 3);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-header {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.pricing-header p {
    color: var(--color-text-light);
    font-size: 0.95rem;
}

.pricing-price {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--color-text);
    letter-spacing: -0.02em;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-light);
    margin-left: calc(var(--spacing-unit) * 1);
}

.pricing-savings {
    text-align: center;
    background: #dcfce7;
    color: #166534;
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 2);
    border-radius: calc(var(--border-radius) / 1.5);
    font-weight: 600;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.pricing-note {
    text-align: center;
    color: var(--color-text-light);
    padding: calc(var(--spacing-unit) * 1.5);
    margin-bottom: calc(var(--spacing-unit) * 4);
    font-size: 0.95rem;
}

.pricing-features {
    list-style: none;
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.pricing-features li {
    padding: calc(var(--spacing-unit) * 1.5) 0;
    color: var(--color-text);
    font-size: 0.95rem;
    border-bottom: 1px solid var(--color-border);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-cta {
    display: block;
    text-align: center;
    padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 4);
    border-radius: 60px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    background: white;
}

.pricing-cta.primary {
    background: var(--color-primary);
    color: white;
}

.pricing-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.2);
}

.pricing-cta.primary:hover {
    background: var(--color-primary-dark);
}

.urgency-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: calc(var(--spacing-unit) * 2);
    background: #fef3c7;
    color: #92400e;
    padding: calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.05rem;
}

.urgency-banner svg {
    flex-shrink: 0;
}

/* === FAQ СЕКЦИЯ === */
.faq {
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: calc(var(--spacing-unit) * 3);
}

.faq-item {
    background: var(--color-bg-light);
    padding: calc(var(--spacing-unit) * 4);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary);
}

.faq-item h4 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.faq-item p {
    color: var(--color-text-light);
    line-height: 1.7;
}

/* === FINAL CTA === */
.final-cta {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    text-align: center;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.final-cta h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.final-cta p {
    font-size: 1.2rem;
    margin-bottom: calc(var(--spacing-unit) * 5);
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--color-primary);
    padding: calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 6);
    border-radius: 60px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.cta-note {
    font-size: 0.95rem;
    margin-top: calc(var(--spacing-unit) * 3);
    opacity: 0.85;
}

/* === FOOTER === */
footer {
    background: var(--color-text);
    color: rgba(255, 255, 255, 0.8);
    padding: calc(var(--spacing-unit) * 10) calc(var(--spacing-unit) * 3);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-legal {
    margin-bottom: calc(var(--spacing-unit) * 4);
}

.footer-legal p {
    margin-bottom: calc(var(--spacing-unit) * 2);
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: calc(var(--spacing-unit) * 4);
    margin-top: calc(var(--spacing-unit) * 3);
}

.footer-link {
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

.footer-contact {
    color: var(--color-accent) !important;
    text-decoration: none;
    font-weight: 600;
    background: rgba(255, 107, 53, 0.2);
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.footer-contact:hover {
    background: rgba(255, 107, 53, 0.3);
    color: white !important;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: calc(var(--spacing-unit) * 4);
    text-align: center;
}

.footer-bottom p {
    margin-bottom: calc(var(--spacing-unit) * 1);
}

.footer-note {
    font-size: 0.9rem;
    opacity: 0.6;
}

@media (max-width: 768px) {
    .footer-legal p {
        font-size: 0.9rem;
    }
}

/* === АДАПТИВНОСТЬ === */
@media (max-width: 1024px) {
    .pricing-card.featured {
        transform: none;
    }
}

@media (max-width: 768px) {
    header {
        padding: calc(var(--spacing-unit) * 10) calc(var(--spacing-unit) * 3);
        background-attachment: scroll;
        min-height: 70vh;
    }

    section {
        padding: calc(var(--spacing-unit) * 8) calc(var(--spacing-unit) * 2);
    }

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

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

    .features-grid {
        grid-template-columns: 1fr;
        gap: calc(var(--spacing-unit) * 3);
    }
    
    .feature-card {
        padding: calc(var(--spacing-unit) * 4);
    }
    
    .feature-image {
        width: 60px;
        height: 60px;
        margin-bottom: calc(var(--spacing-unit) * 3);
    }
}

@media (max-width: 480px) {
    header {
        min-height: 60vh;
        padding: calc(var(--spacing-unit) * 8) calc(var(--spacing-unit) * 2);
    }

    .badge {
        font-size: 12px;
        padding: calc(var(--spacing-unit) * 1) calc(var(--spacing-unit) * 2);
    }

    .problem-card,
    .feature-item,
    .faq-item {
        padding: calc(var(--spacing-unit) * 3);
    }

    .pricing-card {
        padding: calc(var(--spacing-unit) * 4);
    }
}