:root {
    --primary-color: #3b82f6;
    --secondary-color: #1e3a8a;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.8);
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

html {
    scroll-behavior: smooth;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f0f4f8;
    background-image: 
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(245, 158, 11, 0.05) 0px, transparent 50%);
    background-attachment: fixed;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

header {
    background-color: var(--glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1.25rem 0;
    transition: all 0.3s ease;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.025em;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.hero {
    background: linear-gradient(rgba(30, 64, 175, 0.85), rgba(59, 130, 246, 0.85)), 
                url('https://images.unsplash.com/photo-1521737711867-e3b97375f902?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--white);
    padding: 140px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -0.05em;
    animation: fadeInUp 0.8s ease-out;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    padding: 14px 36px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    box-shadow: 0 4px 14px 0 rgba(245, 158, 11, 0.39);
    transition: all 0.3s ease;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.45);
    background-color: #d97706;
}

.section {
    padding: 100px 0;
}

.bg-light {
    background-color: rgba(248, 250, 252, 0.5);
}

h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 4rem;
    color: var(--secondary-color);
    letter-spacing: -0.025em;
}

/* Инфографика */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.info-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(229, 231, 235, 0.5);
}

.info-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
}

.info-card .icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
}

.info-card h3 {
    margin-bottom: 1rem;
    color: var(--secondary-color);
    font-size: 1.25rem;
}

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

/* Алгоритм */
.steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 850px;
    margin: 0 auto;
}

.step {
    background: var(--white);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    transition: transform 0.3s ease;
    border-left: 6px solid var(--primary-color);
}

.step:hover {
    transform: translateX(10px);
}

.step-number {
    background: var(--primary-color);
    color: var(--white);
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.25rem;
    flex-shrink: 0;
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
}

.step-content h4 {
    margin-bottom: 0.75rem;
    color: var(--secondary-color);
    font-size: 1.35rem;
}

.download-link {
    display: inline-flex;
    align-items: center;
    margin-top: 1rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 8px 16px;
    background: rgba(59, 130, 246, 0.08);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.download-link:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* FAQ */
.faq-container {
    max-width: 850px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1.25rem;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-question {
    padding: 1.5rem 2rem;
    font-weight: 700;
    color: var(--secondary-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
}

.faq-question span {
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 0 2rem 1.5rem;
    color: var(--text-light);
    display: none;
    line-height: 1.7;
    animation: fadeIn 0.4s ease;
}

.faq-item.active {
    border-left: 4px solid var(--primary-color);
}

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

.faq-form {
    margin-top: 4rem;
    background: var(--white);
    padding: 3rem;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
}

/* Тест */
#quiz-container {
    max-width: 850px;
    margin: 0 auto;
    background: var(--white);
    padding: 3.5rem;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
}

.quiz-option {
    padding: 16px 20px;
    border: 2px solid #f1f5f9;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.quiz-option:hover {
    background: #f8fafc;
    border-color: var(--primary-color);
    transform: scale(1.01);
}

.quiz-option.selected {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Ссылки */
.link-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-decoration: none;
    color: var(--text-color);
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.link-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

/* Таблица результатов */
.results-table-container {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    max-width: 850px;
    margin: 0 auto;
}

.results-table {
    width: 100%;
    border-collapse: collapse;
}

.results-table th, .results-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #f1f5f9;
}

.results-table th {
    color: var(--secondary-color);
    font-weight: 700;
}

.results-table tr:last-child td {
    border-bottom: none;
}

.score-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
}

.score-high { background: #dcfce7; color: #166534; }
.score-low { background: #fee2e2; color: #991b1b; }

#user-info-form {
    max-width: 400px;
    margin: 0 auto;
}

#user-info-form .form-group {
    margin-bottom: 1.5rem;
}

#user-info-form input {
    padding: 14px;
    font-size: 1rem;
}

/* Анимации */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 4rem 0;
    text-align: center;
}

footer p {
    opacity: 0.7;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 2.5rem; }
    .section { padding: 60px 0; }
    #quiz-container, .faq-form { padding: 2rem; }
}


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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.3s;
}

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

.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    transition: transform 0.3s, background-color 0.3s;
}

.btn:hover {
    transform: translateY(-2px);
    background-color: #d97706;
}

.section {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--bg-light);
}

h2 {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 3rem;
    color: var(--secondary-color);
}

/* Инфографика */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.info-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s;
}

.info-card:hover {
    transform: translateY(-5px);
}

.info-card .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.info-card p {
    font-size: 0.95rem;
    color: #4b5563;
}

/* Алгоритм */
.steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

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

.step-content h4 {
    margin-bottom: 0.5rem;
    color: var(--secondary-color);
}

.step-content a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

/* FAQ */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 1rem;
    border-bottom: 1px solid #e5e7eb;
    padding-bottom: 1rem;
}

.faq-question {
    font-weight: 700;
    color: var(--secondary-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    margin-top: 0.5rem;
    color: #4b5563;
    display: none;
}

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

.faq-form {
    margin-top: 3rem;
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
}

.faq-form h4 {
    margin-bottom: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-family: inherit;
}

.form-group textarea {
    height: 100px;
}

.btn-submit {
    width: 100%;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 12px;
    border-radius: 6px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.3s;
}

/* Тест */
#quiz-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.quiz-question {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.quiz-option {
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s;
}

.quiz-option:hover {
    background: #f9fafb;
}

.quiz-option.selected {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

.quiz-controls {
    margin-top: 2rem;
    display: flex;
    justify-content: space-between;
}

.quiz-result {
    text-align: center;
}

.quiz-result h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.certificate-btn {
    margin-top: 1.5rem;
    background: #10b981;
}

/* Ссылки */
.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.link-card {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 12px;
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.3s;
}

.link-card:hover {
    transform: scale(1.05);
}

.link-card h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

footer {
    background: var(--secondary-color);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}    .hero h1 {
        font-size: 2rem;
    }
}