:root {
    --color-primary: #1E40AF;
    --color-primary-light: #2563EB;
    --color-primary-dark: #1E3A8A;
    --color-secondary: #3B82F6;
    --color-accent: #60A5FA;

    --color-text: #1F2937;
    --color-text-light: #6B7280;
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;

    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 1rem;
    text-align: center;
}

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

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

.btn--outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

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

.btn--large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn--full {
    width: 100%;
}

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

.section__subtitle {
    display: inline-block;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.section__title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    line-height: 1.2;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 5rem;
}

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

.logo-text {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition);
}

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

.nav__link:hover::after {
    width: 100%;
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav__toggle,
.nav__close {
    display: none;
    cursor: pointer;
    color: var(--color-text);
}

.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%);
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero__title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-gray-900);
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.hero__buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero__illustration svg {
    width: 100%;
    height: auto;
}

.about {
    padding: 5rem 0;
    background-color: var(--color-white);
}

.about__content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about__description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 1.5rem;
}

.about__stats {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: 1rem;
    color: var(--color-white);
}

.stat__number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat__label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
}

.features {
    padding: 5rem 0;
    background-color: var(--color-gray-50);
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background-color: var(--color-white);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-0.5rem);
    box-shadow: var(--shadow-xl);
}

.feature-card__icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.feature-card__title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

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

.contact {
    padding: 5rem 0;
    background-color: var(--color-white);
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact__info-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 1rem;
}

.contact__info-description {
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 2rem;
}

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

.contact__detail {
    display: flex;
    gap: 1rem;
}

.contact__detail-icon {
    width: 3rem;
    height: 3rem;
    background-color: var(--color-gray-100);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact__detail-content {
    display: flex;
    flex-direction: column;
}

.contact__detail-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
}

.contact__detail-value {
    font-weight: 600;
    color: var(--color-gray-900);
    text-decoration: none;
}

.contact__detail-value:hover {
    color: var(--color-primary);
}

.contact__form {
    background-color: var(--color-gray-50);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__label {
    display: block;
    font-weight: 500;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.form__input {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--color-gray-200);
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form__input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

.footer {
    background-color: var(--color-gray-900);
    color: var(--color-white);
    padding: 3rem 0 1.5rem;
}

.footer__content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer__description {
    color: var(--color-gray-200);
    line-height: 1.6;
}

.footer__subtitle {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer__list {
    list-style: none;
}

.footer__list li {
    margin-bottom: 0.5rem;
}

.footer__list a {
    color: var(--color-gray-200);
    text-decoration: none;
    transition: var(--transition);
}

.footer__list a:hover {
    color: var(--color-accent);
}

.footer__address {
    color: var(--color-gray-200);
    font-style: normal;
    line-height: 1.6;
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
}

.footer__copyright {
    color: var(--color-gray-200);
    font-size: 0.875rem;
}

@media screen and (max-width: 968px) {
    .section__title {
        font-size: 2rem;
    }

    .hero__container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero__title {
        font-size: 2.25rem;
    }

    .hero__buttons {
        justify-content: center;
    }

    .hero__image {
        order: -1;
    }

    .about__content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about__stats {
        flex-direction: row;
        gap: 1rem;
    }

    .contact__content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

@media screen and (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        height: 100%;
        background-color: var(--color-white);
        box-shadow: var(--shadow-xl);
        padding: 4rem 2rem;
        transition: var(--transition);
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: 2rem;
    }

    .nav__close,
    .nav__toggle {
        display: block;
    }

    .nav__close {
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
    }

    .nav__actions .btn {
        display: none;
    }

    .hero {
        padding: 6rem 0 3rem;
    }

    .hero__title {
        font-size: 1.75rem;
    }

    .hero__subtitle {
        font-size: 1rem;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .btn--large {
        width: 100%;
    }

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

    .about__stats {
        flex-direction: column;
    }

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

@media screen and (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .section__title {
        font-size: 1.75rem;
    }

    .hero__title {
        font-size: 1.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

    .contact__form {
        padding: 1.5rem;
    }

    .stat__number {
        font-size: 2rem;
    }
}