body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f7fa;
}

:root {
    --primary-color: #1a2a40;
    --secondary-color: #007bff;
    --accent-color: #28a745;
    --light-bg: #f8f9fa;
    --dark-bg: #212529;
    --text-color: #444;
    --white-color: #fff;
    --border-color: #e0e0e0;
    --premium-gold: #ffd700;
}

.title,
.subtitle {
    font-family: 'Montserrat', sans-serif;
    color: var(--primary-color);
}

.title.is-1 {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.5px;
}

.subtitle.is-3 {
    font-size: 2.2rem;
    font-weight: 400;
}

.title.is-2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 50px;
    text-align: center;
    position: relative;
    line-height: 1.2;
}

.title.is-2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--secondary-color);
    margin: 20px auto 0;
    border-radius: 2px;
}

.button {
    transition: all 0.3s ease;
    padding: 12px 30px;
    font-weight: 600;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    z-index: -1;
}

.button:hover::before {
    left: 0;
}

.button.is-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.button.is-primary:hover {
    background-color: #0056b3;
    border-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.button.is-light {
    background-color: var(--white-color);
    color: var(--primary-color);
}

.button.is-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.card {
    border: 1px solid var(--border-color);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border-radius: 15px;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 1.5rem 3rem rgba(0, 0, 0, 0.1);
}

.service-card {
    border-top: 4px solid var(--primary-color);
}

.pricing-card {
    border-top: 4px solid var(--accent-color);
}

.testimonial-card {
    background-color: var(--dark-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--white-color);
    padding: 35px;
    border-top: 4px solid var(--premium-gold);
}

.card-header-title {
    font-weight: 700;
    font-size: 1.2rem;
    padding: 15px 20px;
    color: var(--primary-color);
}

.section {
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.main-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, #1c1b29 100%);
    color: var(--white-color);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    position: relative;
    z-index: 1;
    background-size: 200% 200%;
    animation: gradient-animation 15s ease infinite;
}

@keyframes gradient-animation {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.hero-logo {
    transition: transform 0.3s ease;
}

.hero-logo:hover {
    transform: scale(1.05);
}

.hero .title.is-1,
.hero .subtitle.is-3 {
    opacity: 0;
    transform: translateY(20px);
    animation: slideInUp 0.8s ease-out 0.2s forwards;
}

.hero .title.is-1 {
    font-size: 4rem;
}

.hero .subtitle.is-3 {
    font-size: 2rem;
    animation-delay: 0.4s;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#services .card-content {
    padding: 40px 25px;
}

#services .title.is-4 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

#services .subtitle.is-6 {
    font-size: 1.1rem;
    line-height: 1.8;
}

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

.benefit-item .icon {
    background-color: var(--white-color);
    border-radius: 50%;
    width: 80px;
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 25px auto;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.benefit-item:hover .icon {
    transform: translateY(-4px);
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.12);
}

.benefit-item .icon i {
    font-size: 4rem;
    color: var(--accent-color);
    transition: transform 0.3s ease, color 0.3s ease;
}

.benefit-item:hover .icon i {
    transform: scale(1.1);
    color: var(--secondary-color);
}

.price-calculator {
    padding: 35px;
    border-radius: 15px;
    box-shadow: 0 0.75rem 1.5rem rgba(0, 0, 0, 0.06), 0 0.25rem 0.5rem rgba(0, 0, 0, 0.04);
}

#pricing .field {
    margin-bottom: 25px;
    width: 100%;
}

#pricing .field .label {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#pricing .field .label span {
    color: var(--secondary-color);
    font-weight: 700;
    background-color: var(--light-bg);
    padding: 4px 8px;
    border-radius: 5px;
    min-width: 50px;
    text-align: center;
    outline: none;
    border: 1px solid transparent;
    transition: border-color 0.3s ease;
}

#pricing .field .label span:focus {
    border-color: var(--secondary-color);
}

#pricing .slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: #ddd;
    outline: none;
    opacity: 0.7;
    transition: opacity .2s;
}

#pricing .slider:hover {
    opacity: 1;
}

#pricing .slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--secondary-color);
    cursor: pointer;
}

#pricing .slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--secondary-color);
    cursor: pointer;
}

.select:not(.is-multiple)::after {
    border-color: var(--secondary-color);
}

.select select {
    border-color: var(--border-color);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    border-radius: 6px;
    padding-right: 2.5em;
    transition: all 0.3s ease;
}

.select select:hover {
    border-color: var(--secondary-color);
}

.select select:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.125em rgba(0, 123, 255, 0.2);
}

.field .label .icon {
    margin-left: 8px;
    font-size: 1.1em;
    vertical-align: middle;
    color: var(--primary-color);
}

.field .label .icon i {
    vertical-align: middle;
}

.windows-version-field[style*="display: none"] {
    display: none !important;
}

#pricing .card-content .field,
#pricing .box .field {
    margin-top: 15px;
}

#pricing .level.is-mobile.is-size-7 {
    margin-top: -4px;
    margin-bottom: 12px;
}

#pricing .level-item {
    font-weight: 600;
    color: #6c757d;
}

#testimonials .is-italic {
    font-size: 1.4rem;
    line-height: 1.7;
    margin-bottom: 15px;
}

#testimonials .has-text-grey-light {
    font-size: 1rem;
    margin-top: 15px;
}

.faq-item {
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}

.accordion-header {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 18px 22px;
    background-color: var(--white-color);
    color: var(--primary-color);
    transition: all 0.3s ease;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
}

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

.accordion-header.is-active {
    color: var(--white-color);
    background-color: var(--secondary-color);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background-color: var(--light-bg);
}

.accordion-content .content {
    padding: 22px;
    font-size: 1rem;
    line-height: 1.7;
}

.contact-hero {
    background: linear-gradient(135deg, #1c1b29 0%, var(--primary-color) 100%);
}

#contact .title.is-1 {
    font-size: 4rem;
}

#contact .subtitle.is-3 {
    font-size: 2rem;
}

.footer {
    padding: 30px 0;
    background-color: #1c1b29;
}

.footer .content {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.footer p {
    margin-left: 1rem;
    margin-bottom: 0;
    display: inline-block;
    vertical-align: middle;
    font-size: 0.9rem;
    padding-right: 2rem;
}

.fade-in-section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

#backToTopBtn {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 99;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.4rem;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

#backToTopBtn.is-visible {
    opacity: 1;
    visibility: visible;
}

@media screen and (max-width: 1024px) {
    .title.is-1 {
        font-size: 3.5rem;
    }

    .subtitle.is-3 {
        font-size: 1.8rem;
    }

    .title.is-2 {
        font-size: 2.5rem;
    }

    #contact .title.is-1 {
        font-size: 3.5rem;
    }
}

@media screen and (max-width: 768px) {
    .title.is-1 {
        font-size: 2.5rem;
    }

    .subtitle.is-3 {
        font-size: 1.4rem;
    }

    .title.is-2 {
        font-size: 2rem;
        margin-bottom: 40px;
    }

    .section {
        padding: 50px 0;
    }

    #contact .title.is-1 {
        font-size: 2.5rem;
    }

    #contact .subtitle.is-3 {
        font-size: 1.4rem;
    }

    .button {
        padding: 10px 22px;
        font-size: 0.8rem;
    }

    .card-header-title {
        font-size: 1rem;
    }

    #benefits .icon.is-large i {
        font-size: 3.5rem;
    }

    #benefits .title.is-4 {
        font-size: 1.8rem;
    }

    #pricing .title.is-3 {
        font-size: 2.2rem;
    }

    #pricing .title.is-3 small {
        font-size: 1.1rem;
    }

    #testimonials .is-italic {
        font-size: 1.2rem;
    }

    .accordion-header {
        font-size: 1rem;
        padding: 15px 20px;
    }

    .accordion-content .content {
        padding: 20px;
        font-size: 0.9rem;
    }
}

.hero-body .image img {
    max-width: 100%;
    height: auto;
    display: block;
}

.logo-header {
    width: 25% !important;
    margin-bottom: 70px !important;
}

@media screen and (max-width: 768px) {
    .logo-header {
        width: 40% !important;
        margin-bottom: 30px !important;
    }
}

.footer .image {
    margin-bottom: 0;
    display: inline-flex;
    vertical-align: middle;
}

.footer .image img {
    width: 100%;
    height: auto;
}

.os-select-column.is-full.has-text-centered {
    text-align: center;
}

.os-select-column.is-full {
    width: 100%;
}

.os-select-column.is-half {
    width: 50%;
}

.windows-version-field {
    width: 100%;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.windows-version-label {
    display: block;
    margin-bottom: 0.5rem;
}

.windows-version-select {
    width: 100%;
}

.os-select-column {
    transition: width 0.3s ease;
}