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

:root {
    --primary-color: #00A9E0;
    --primary-dark: #0088b8;
    --secondary-color: #FF6B35;
    --text-dark: #1a1a1a;
    --text-gray: #4a4a4a;
    --text-light: #6c757d;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --success: #28a745;
    --danger: #dc3545;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4 {
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

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

.animate-in {
    animation: fadeInUp 0.6s ease-out forwards;
}

/* Шапка */
.header {
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo img {
    width: 40px;
    height: 40px;
}

.nav {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

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

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 32px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

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

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

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

.btn-header {
    background: var(--secondary-color);
    color: var(--bg-white);
    padding: 10px 24px;
}

.btn-header:hover {
    background: #e55a2a;
    transform: translateY(-2px);
}

.btn-download {
    background: var(--success);
    color: var(--bg-white);
    font-size: 1.2rem;
    padding: 16px 48px;
}

.btn-download:hover {
    background: #218838;
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.download-btn-icon {
    font-size: 1.5rem;
}

/* Главный баннер */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--bg-white);
    padding: 4rem 0;
    text-align: center;
}

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

.hero h1 {
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.hero-note {
    font-size: 0.9rem;
    opacity: 0.85;
}

/* Доверие */
.trust {
    background: var(--bg-light);
    padding: 3rem 0;
    text-align: center;
}

.trust-text {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    font-weight: 500;
}

.trust-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 3rem;
}

.trust-logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-light);
    opacity: 0.7;
}

/* Возможности */
.features {
    padding: 6rem 0;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 12px;
    border: 2px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

/* Голубая заливка для всех карточек */
.feature-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.feature-blue,
.feature-green,
.feature-purple,
.feature-red,
.feature-orange,
.feature-pink {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.feature-card:hover {
    border-color: var(--primary-color);
}

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

.feature-card h3 {
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Скриншоты */
.screenshots {
    padding: 6rem 0;
    background: var(--bg-light);
}

.screenshots h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.screenshot-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    aspect-ratio: 16/9;
    background: var(--bg-white);
}

.screenshot-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.screenshot-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    padding: 2rem 1.5rem 1.5rem;
    transform: translateY(100%);
    transition: var(--transition);
}

.screenshot-overlay span {
    color: var(--bg-white);
    font-weight: 600;
    font-size: 1rem;
}

.screenshot-item:hover img {
    transform: scale(1.05);
}

.screenshot-item:hover .screenshot-overlay {
    transform: translateY(0);
}

/* Модальное окно */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s;
}

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

.modal-content {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    animation: zoomIn 0.3s;
}

@keyframes zoomIn {
    from { transform: scale(0.8); }
    to { transform: scale(1); }
}

.modal-close {
    position: absolute;
    top: 30px;
    right: 50px;
    color: var(--bg-white);
    font-size: 50px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
    z-index: 2001;
}

.modal-close:hover {
    color: var(--secondary-color);
    transform: rotate(90deg);
}

/* Плюсы и минусы */
.pros-cons {
    padding: 6rem 0;
    background: var(--bg-white);
}

.pros-cons h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.pros-cons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.pros-card, .cons-card {
    background: var(--bg-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.pros-card:hover, .cons-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-header {
    padding: 1.5rem;
    text-align: center;
}

.pros-header {
    background: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
}

.cons-header {
    background: linear-gradient(135deg, #ee0979 0%, #ff6a00 100%);
}

.card-header h3 {
    color: var(--bg-white);
    margin: 0;
}

.pros-list, .cons-list {
    list-style: none;
    padding: 2rem;
}

.pros-list li, .cons-list li {
    padding: 0.75rem 0;
    padding-left: 1.5rem;
    position: relative;
    border-bottom: 1px solid var(--border-color);
}

.pros-list li:last-child, .cons-list li:last-child {
    border-bottom: none;
}

.pros-list li::before {
    content: '';
    position: absolute;
    left: 0;
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    top: 1rem;
}

.cons-list li::before {
    content: '';
    position: absolute;
    left: 0;
    width: 6px;
    height: 6px;
    background: var(--danger);
    border-radius: 50%;
    top: 1rem;
}

/* FAQ */
.faq {
    padding: 6rem 0;
    background: var(--bg-light);
}

.faq h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    margin-bottom: 1rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

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

.faq-question h3 {
    margin: 0;
    color: var(--text-dark);
    font-size: 1.1rem;
}

.faq-icon {
    font-size: 2rem;
    font-weight: 300;
    color: var(--primary-color);
    transition: var(--transition);
    min-width: 30px;
    text-align: center;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.faq-item.active .faq-answer {
    max-height: 800px;
    padding: 0 1.5rem 1.5rem;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Обратная связь */
.contact {
    padding: 6rem 0;
    background: var(--bg-white);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 3rem;
    align-items: start;
}

.contact-info h2 {
    margin-bottom: 1rem;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: start;
}

.contact-icon {
    font-size: 2rem;
}

.contact-item h4 {
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.contact-item p {
    color: var(--text-light);
}

.contact-form {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--bg-white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 169, 224, 0.1);
}

.contact-form button {
    width: 100%;
}

/* Скачать */
.download {
    padding: 3rem 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--bg-white);
}

.download h2 {
    text-align: center;
    color: var(--bg-white);
    margin-bottom: 0.5rem;
}

.section-description {
    text-align: center;
    font-size: 1rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.download-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    max-width: 700px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.download-info-block h3 {
    color: var(--bg-white);
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.download-includes {
    list-style: none;
    margin-bottom: 1rem;
}

.download-includes li {
    padding: 0.3rem 0;
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.95);
}

.download-meta {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.85);
}

.download-size,
.download-version {
    display: block;
}

.btn-download-big {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--bg-white);
    color: #667eea;
    padding: 1rem 2rem;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    white-space: nowrap;
}

.btn-download-big:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.95);
}

.btn-download-big .btn-icon {
    font-size: 1.3rem;
}

/* Футер */
.footer {
    background: var(--text-dark);
    color: var(--bg-white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--bg-white);
}

.footer-logo img {
    width: 50px;
    height: 50px;
    object-fit: contain;
    background: var(--bg-white);
    padding: 5px;
    border-radius: 8px;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--bg-white);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
}

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

    .hero {
        padding: 4rem 0;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .features, .screenshots, .pros-cons, .faq, .contact, .download {
        padding: 4rem 0;
    }

    .features-grid, .screenshots-grid, .pros-cons-grid {
        grid-template-columns: 1fr;
    }

    .modal-close {
        top: 20px;
        right: 30px;
        font-size: 40px;
    }

    .download-card {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

    .download-info-block {
        width: 100%;
    }

    .btn-download-big {
        width: 100%;
        padding: 0.9rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .btn {
        padding: 10px 24px;
        font-size: 0.9rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
}

/* Дополнительные улучшения */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}