:root {
    --primary-color: #4A90E2;
    --secondary-color: #2C3E50;
    --text-color: #333333;
    --light-gray: #F5F6FA;
    --white: #FFFFFF;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --container-padding: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}

/* Header */
.header {
    background: url('../images/header-image1.jpg') center center/cover no-repeat;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #222;
    position: relative;
    text-align: center;
}

.header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(255,255,255,0.85); /* легкое осветление для читаемости текста */
    z-index: 1;
}

.header .container {
    position: relative;
    z-index: 2;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.header h1, .header__description {
    text-shadow: 0 2px 8px rgba(255,255,255,0.7), 0 1px 4px rgba(0,0,0,0.10);
}

.header h1 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    margin-bottom: 20px;
    line-height: 1.2;
}

.header__description {
    font-size: clamp(1rem, 3vw, 1.2rem);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.button {
    display: inline-block;
    padding: clamp(10px, 2vw, 12px) clamp(20px, 4vw, 24px);
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    white-space: nowrap;
    font-size: clamp(0.9rem, 2vw, 1rem);
}

.button--primary {
    background: linear-gradient(90deg, #90caf9 0%, #42a5f5 100%);
    color: #fff;
    border: none;
    border-radius: 32px;
    box-shadow: 0 4px 16px rgba(66,165,245,0.18), 0 1.5px 6px rgba(21,101,192,0.10);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-shadow: 0 2px 8px rgba(66,165,245,0.18);
    padding: 14px 38px;
    transition: background 0.25s, box-shadow 0.25s, transform 0.15s;
    outline: none;
    position: relative;
    overflow: hidden;
}

.button--primary::after {
    content: '';
    position: absolute;
    left: 0; top: 0; right: 0; bottom: 0;
    border-radius: 32px;
    box-shadow: 0 0 16px 4px #90caf9;
    opacity: 0.18;
    pointer-events: none;
    transition: opacity 0.25s;
}

.button--primary:hover, .button--primary:focus {
    background: linear-gradient(90deg, #42a5f5 0%, #1565c0 100%);
    box-shadow: 0 6px 24px rgba(66,165,245,0.28), 0 2px 8px rgba(21,101,192,0.15);
    transform: translateY(-2px) scale(1.03);
}

.button--primary:active {
    transform: scale(0.98);
    box-shadow: 0 2px 8px rgba(66,165,245,0.18);
}

/* Features Section */
.features {
    padding: clamp(40px, 8vw, 80px) 0;
    background-color: var(--light-gray);
}

.features h2 {
    text-align: center;
    margin-bottom: clamp(20px, 4vw, 40px);
    font-size: clamp(1.5rem, 4vw, 2rem);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
    gap: clamp(20px, 4vw, 30px);
}

.feature-card {
    background: var(--white);
    padding: clamp(20px, 4vw, 30px);
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow);
}

.feature-card__icon {
    width: clamp(48px, 8vw, 64px);
    height: clamp(48px, 8vw, 64px);
    margin-bottom: clamp(15px, 3vw, 20px);
}

.feature-card h3 {
    margin-bottom: 15px;
    color: var(--secondary-color);
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
}

/* Analysis Section */
.analysis {
    padding: clamp(40px, 8vw, 80px) 0;
}

.analysis h2 {
    text-align: center;
    margin-bottom: clamp(20px, 4vw, 40px);
    font-size: clamp(1.5rem, 4vw, 2rem);
}

.analysis__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
    gap: clamp(20px, 4vw, 30px);
}

.analysis-card {
    background: var(--light-gray);
    padding: clamp(20px, 4vw, 25px);
    border-radius: var(--border-radius);
    text-align: center;
}

.analysis-card h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
}

/* Examples Section */
.examples {
    padding: clamp(40px, 8vw, 80px) 0;
    background-color: var(--light-gray);
}

.examples h2 {
    text-align: center;
    margin-bottom: clamp(20px, 4vw, 40px);
    font-size: clamp(1.5rem, 4vw, 2rem);
}

.examples__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
    gap: clamp(20px, 4vw, 30px);
}

.example-card {
    background: var(--white);
    padding: clamp(20px, 4vw, 25px);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.example-card h3 {
    color: var(--secondary-color);
    margin-bottom: 15px;
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
}

/* Screenshots Section */
.screenshots {
    padding: clamp(40px, 8vw, 80px) 0;
}

.screenshots h2 {
    text-align: center;
    margin-bottom: clamp(20px, 4vw, 40px);
    font-size: clamp(1.5rem, 4vw, 2rem);
}

.screenshots__gallery {
    background: #f8fbff;
    padding: 40px;
    border-radius: var(--border-radius);
    min-height: 300px;
    position: relative;
    overflow: hidden;
}

/* CTA Section */
.cta {
    padding: clamp(40px, 8vw, 80px) 0;
    background: #0a2540;
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    background: url('data:image/svg+xml;utf8,<svg width="100%25" height="100%25" viewBox="0 0 800 400" fill="none" xmlns="http://www.w3.org/2000/svg"><g stroke="%2390caf9" stroke-width="1.5" opacity="0.18"><path d="M120 80 Q200 120 300 60 T480 120 Q600 180 700 80"/><path d="M200 300 Q300 340 400 280 T600 320"/></g><g fill="%2342a5f5" opacity="0.13"><circle cx="120" cy="80" r="28"/><circle cx="300" cy="60" r="16"/><circle cx="480" cy="120" r="22"/><circle cx="700" cy="80" r="18"/><circle cx="200" cy="300" r="14"/><circle cx="400" cy="280" r="20"/><circle cx="600" cy="320" r="16"/></g><g fill="%2390caf9" opacity="0.10"><circle cx="180" cy="200" r="8"/><circle cx="220" cy="100" r="6"/><circle cx="350" cy="90" r="10"/><circle cx="520" cy="150" r="7"/><circle cx="650" cy="100" r="9"/><circle cx="250" cy="320" r="7"/><circle cx="450" cy="300" r="8"/><circle cx="700" cy="350" r="10"/></g><g fill="%23fff" opacity="0.07"><circle cx="100" cy="350" r="6"/><circle cx="750" cy="60" r="8"/><circle cx="400" cy="390" r="5"/></g></svg>') center center/cover no-repeat;
    pointer-events: none;
    filter: none;
    opacity: 1;
}

.cta > .container {
    position: relative;
    z-index: 1;
}

.cta h2, .cta p {
    color: #fff;
    text-shadow: 0 2px 8px rgba(10,37,64,0.18);
}

.cta .button--primary {
    background: linear-gradient(90deg, #42a5f5 0%, #90caf9 100%);
    color: #fff;
    border: none;
    border-radius: 32px;
    box-shadow: 0 4px 16px rgba(66,165,245,0.18), 0 1.5px 6px rgba(21,101,192,0.10);
    text-shadow: 0 2px 8px rgba(21,101,192,0.10);
    padding: 16px 44px;
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    transition: background 0.22s, color 0.22s, box-shadow 0.22s, transform 0.13s;
    outline: none;
    position: relative;
    overflow: hidden;
}

.cta .button--primary:hover, .cta .button--primary:focus {
    background: linear-gradient(90deg, #1565c0 0%, #42a5f5 100%);
    color: #fff;
    box-shadow: 0 8px 32px rgba(21,101,192,0.22);
    transform: translateY(-2px) scale(1.04);
}

.cta h2 {
    margin-bottom: clamp(15px, 3vw, 20px);
    font-size: clamp(1.5rem, 4vw, 2rem);
}

.cta p {
    margin-bottom: clamp(20px, 4vw, 30px);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-size: clamp(0.9rem, 2.5vw, 1.1rem);
}

/* Footer */
.footer {
    background-color: #051935;
    color: #fff;
    padding: clamp(30px, 6vw, 60px) 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
    gap: clamp(20px, 4vw, 40px);
}

.footer h3 {
    margin-bottom: clamp(15px, 3vw, 20px);
    font-size: clamp(1rem, 2.5vw, 1.2rem);
    color: #fff;
    letter-spacing: 0.03em;
}

.footer a {
    color: #fff;
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.3s, color 0.2s;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
}

.footer a:hover {
    opacity: 1;
    color: #90caf9;
}

.footer__info p {
    color: #fff;
    font-size: 0.98em;
}

/* Carousel */
.carousel {
    display: flex;
    transition: transform 0.5s ease;
    width: 100%;
}

.carousel__slide {
    flex: 0 0 33.3333%;
    max-width: 33.3333%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 10px;
    box-sizing: border-box;
}

.carousel__button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: none;
    color: #42a5f5;
    font-size: 2.6rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 2;
    padding: 0 12px;
    transition: color 0.2s, text-shadow 0.2s;
    text-shadow: 0 2px 8px rgba(66,165,245,0.18);
    outline: none;
    line-height: 1;
    opacity: 0.85;
}

.carousel__button:hover, .carousel__button:focus {
    color: #1565c0;
    text-shadow: 0 4px 16px rgba(66,165,245,0.28);
    opacity: 1;
}

.carousel__button--prev {
    left: 0;
}

.carousel__button--next {
    right: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --container-padding: 15px;
    }

    .carousel__button {
        width: 36px;
        height: 36px;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 10px;
    }

    .carousel__button {
        width: 32px;
        height: 32px;
    }

    .screenshots__gallery {
        padding: 15px;
    }
}

@media (max-width: 600px) {
    .header {
        min-height: 380px;
        background-position: center top;
    }
    .header h1 {
        font-size: 1.3rem;
    }
    .header__description {
        font-size: 1rem;
    }
    .carousel__button {
        color: #222;
        font-size: 2rem;
        text-shadow: none;
        padding: 0 6px;
        opacity: 0.85;
    }
    .carousel__button:hover, .carousel__button:focus {
        color: #1565c0;
        text-shadow: none;
        opacity: 1;
    }
    .cta .button--primary {
        padding: 12px 32px;
        font-size: 1rem;
    }
}

@media (max-width: 900px) {
    .carousel__slide {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

@media (max-width: 600px) {
    .carousel__slide {
        flex: 0 0 100%;
        max-width: 100%;
        padding: 0 2vw;
    }
    .carousel__slide img {
        max-width: 98vw;
        max-height: 340px;
        border-radius: 10px;
    }
}

/* Touch Device Optimizations */
@media (hover: none) {
    .button--primary:hover {
        transform: none;
    }

    .button--primary:active {
        transform: translateY(1px);
    }

    .carousel__button:hover {
        background: rgba(255, 255, 255, 0.8);
    }
}

.carousel__slide img {
    display: block;
    max-width: 286px;
    max-height: 620px;
    width: 100%;
    height: 100%;
    margin: 0 auto;
    border-radius: 16px;
    box-shadow:
        0 4px 24px 0 rgba(66,165,245,0.18),
        0 1.5px 6px 0 rgba(21,101,192,0.10),
        0 0.5px 2px 0 rgba(21,101,192,0.08);
    object-fit: contain;
    background: #fff;
    transition: box-shadow 0.25s;
}

.carousel__slide img:hover {
    box-shadow:
        0 8px 32px 0 rgba(66,165,245,0.28),
        0 3px 12px 0 rgba(21,101,192,0.15),
        0 1px 4px 0 rgba(21,101,192,0.12);
}

.info-block {
    background: #f4f8fd;
    padding: 48px 0;
}
.info-block .container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.info-list {
    list-style: none;
    padding: 0;
    margin: 0 auto;
    max-width: 700px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    font-size: 1.08rem;
    color: #222;
}
.info-list li {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(66,165,245,0.06);
    padding: 18px 22px 18px 2.8em;
    margin-bottom: 0;
    position: relative;
}
.info-list li:before {
    content: '•';
    color: #42a5f5;
    position: absolute;
    left: 1.4em;
    font-size: 1.2em;
    top: 50%;
    transform: translateY(-50%);
}

.limitations {
    background: #f6f7fa;
    padding: 56px 0;
}
.limitations .container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}
.limitations-list {
    list-style: none;
    padding: 0;
    margin: 0 auto;
    max-width: 700px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    color: #222;
    font-size: 1.08rem;
}
.limitations-list li {
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(66,165,245,0.06);
    padding: 18px 22px 18px 2.8em;
    margin-bottom: 0;
    position: relative;
}
.limitations-list li:before {
    content: '⚠';
    color: #ffb300;
    position: absolute;
    left: 1.4em;
    font-size: 1.1em;
    top: 50%;
    transform: translateY(-50%);
}

.tariffs {
    background: #f4f8fd;
    padding: 72px 0;
}
.tariffs .container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}
.tariffs__grid {
    display: flex;
    gap: 36px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
}
.tariffs__desc {
    text-align: center;
    color: #444;
    font-size: 1.13rem;
    margin-bottom: 38px;
    line-height: 1.6;
    background: #fff;
    border-radius: 14px;
    box-shadow: 0 2px 8px rgba(66,165,245,0.06);
    padding: 22px 24px 18px 24px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
    animation: fadeInUp 0.7s cubic-bezier(.23,1.01,.32,1) both;
}
.tariff-card {
    background: #fff;
    border-radius: 22px;
    box-shadow: 0 2px 16px rgba(66,165,245,0.10);
    padding: 48px 38px 36px 38px;
    min-width: 220px;
    text-align: center;
    color: #222;
    font-weight: 600;
    font-size: 1.13rem;
    transition: box-shadow 0.2s, transform 0.2s, border 0.3s;
    margin-bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 2px solid transparent;
    background-clip: padding-box;
    animation: fadeInUp 0.7s cubic-bezier(.23,1.01,.32,1) both;
}
.tariff-card:hover {
    box-shadow: 0 12px 36px rgba(66,165,245,0.18);
    transform: translateY(-6px) scale(1.04);
    border-image: linear-gradient(90deg, #42a5f5 0%, #90caf9 100%);
    border-image-slice: 1;
}
.tariff-card h3 {
    margin-bottom: 18px;
    color: #222;
    font-size: 1.18rem;
    font-weight: 700;
    letter-spacing: 0.01em;
}
.tariff-price {
    font-size: 2.1rem;
    font-weight: 800;
    color: #1565c0;
    letter-spacing: 0.01em;
    margin-bottom: 2px;
    display: inline-block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.info-block h2,
.limitations h2,
.tariffs h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 32px;
    font-weight: 700;
    color: #222;
    letter-spacing: 0.01em;
}

@media (max-width: 900px) {
    .info-block .container,
    .limitations .container,
    .tariffs .container {
        max-width: 100%;
        padding: 0 8px;
    }
    .info-list, .limitations-list {
        max-width: 100%;
    }
    .tariffs__grid {
        gap: 18px;
    }
    .tariff-card {
        min-width: 0;
        width: 100%;
        padding: 24px 10px 18px 10px;
    }
}

.tariffs__referral {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #222;
    font-size: 1.08rem;
    background: #e3f2fd;
    border-radius: 14px;
    padding: 22px 24px;
    max-width: 500px;
    margin: 0 auto;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(66,165,245,0.06);
}

.tg-link {
    white-space: nowrap;
    font-weight: 600;
    color: #1565c0;
    transition: color 0.2s;
}
.tg-link:hover, .tg-link:focus {
    color: #42a5f5;
    text-decoration: underline solid;
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
    :root {
        --container-padding: 15px;
    }

    .carousel__button {
        width: 36px;
        height: 36px;
    }
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.faq__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.faq-item {
    background: #ffffff;
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-5px);
}

.faq-item h3 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.faq-item p {
    color: #666;
    margin-bottom: 15px;
    line-height: 1.6;
}

.faq-item ul {
    list-style-type: none;
    padding-left: 0;
    margin: 0;
}

.faq-item ul li {
    color: #666;
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
    line-height: 1.5;
}

.faq-item ul li:before {
    content: "•";
    color: #4CAF50;
    position: absolute;
    left: 0;
}

.faq-item ul ul {
    margin-top: 10px;
    margin-left: 20px;
}

.faq-item ul ul li:before {
    content: "–";
}

@media (max-width: 768px) {
    .faq {
        padding: 40px 0;
    }
    
    .faq__grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .faq-item {
        padding: 20px;
    }
}