:root {
    --body-color: #12141b;
    --container-color: #181c26;
    --container-color-alt: #1f2430;
    --first-color: #7261d5;
    --first-color-alt: #8b7ef0;
    --first-color-soft: rgba(114, 97, 213, 0.12);
    --title-color: #f1f3f9;
    --text-color: #e1e4ef;
    --text-color-light: #9ea5bb;

    --surface-radius: 18px;
    --surface-border: rgba(255, 255, 255, 0.06);
    --shadow-soft: 0 18px 40px rgba(8, 10, 18, 0.18);
    --shadow-subtle: 0 10px 24px rgba(8, 10, 18, 0.12);

    --space-xs: 0.75rem;
    --space-sm: 1rem;
    --space-md: 1.75rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
}

body {
    font-family: "Manrope", "Poppins", sans-serif;
    background: radial-gradient(circle at top, rgba(114, 97, 213, 0.06), transparent 65%) var(--body-color);
    color: var(--text-color);
    line-height: 1.75;
}

h1,
h2,
h3,
.section__title,
.home__name,
.nav__logo {
    font-family: "Space Grotesk", "Manrope", sans-serif;
}

.header {
    background-color: rgba(12, 14, 22, 0.85);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav__logo {
    font-weight: 600;
    letter-spacing: 0.04em;
}

.nav__menu {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    left: auto;
    bottom: auto;
    width: auto;
    padding: 0.35rem var(--space-sm);
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    background-color: rgba(18, 20, 27, 0.82);
    box-shadow: var(--shadow-subtle);
}

.nav__list {
    gap: var(--space-xs);
}

.nav__link {
    color: var(--text-color-light);
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.75rem;
    border-radius: 999px;
    transition: color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.nav__link i {
    font-size: 1.1rem;
}

.nav__link:hover {
    color: var(--title-color);
    background-color: var(--first-color-soft);
    transform: translateY(-2px);
}

.active-link {
    background-color: rgba(114, 97, 213, 0.18);
    color: var(--title-color);
    box-shadow: none;
}

@media screen and (max-width: 768px) {
    .nav__menu {
        right: 0.75rem;
        left: 0.75rem;
        top: auto;
        bottom: 1.25rem;
        width: auto;
        padding: 0.65rem 1.25rem;
    }

    .nav__list {
        justify-content: space-between;
    }
}

.section {
    padding: var(--space-xl) 0 var(--space-lg);
}

.section__subtitle {
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-color-light);
}

.section__title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: var(--space-md);
    color: var(--title-color);
    letter-spacing: -0.02em;
}

.home__data .home__name {
    font-size: clamp(2.4rem, 6vw, 3.5rem);
    letter-spacing: -0.03em;
}

.home__description {
    font-size: 1.05rem;
    max-width: 520px;
    margin: var(--space-md) auto 0;
    color: var(--text-color);
}

.home__img {
    border-radius: 26px;
    box-shadow: var(--shadow-soft);
    filter: saturate(1.05);
}

.timeline__content,
.services__container,
.repo-item,
.contact__card,
.book__card {
    background-color: var(--container-color);
    border-radius: var(--surface-radius);
    border: 1px solid var(--surface-border);
}

.timeline__item,
.services__card,
.repo-item,
.contact__card,
.book__card {
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.timeline__item:hover,
.services__card:hover,
.repo-item:hover,
.contact__card:hover,
.book__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-subtle);
    border-color: rgba(114, 97, 213, 0.25);
}

.timeline__marker {
    background: linear-gradient(135deg, var(--first-color), var(--first-color-alt));
    box-shadow: 0 10px 18px rgba(114, 97, 213, 0.35);
}

.timeline__icon {
    color: #fff !important;
}

.timeline__item--current .timeline__icon {
    color: var(--title-color) !important;
}

.timeline__title {
    font-weight: 600;
    letter-spacing: -0.01em;
}

.timeline__description {
    color: var(--text-color-light);
}

.services__title,
.repo-name {
    font-weight: 600;
    color: var(--title-color);
    letter-spacing: -0.01em;
}

.services__company,
.repo-description,
.book__author,
.contact__card-title {
    color: var(--text-color-light);
}

.services__button {
    color: var(--first-color);
}

.services__modal-content,
.work__modal-content {
    background-color: var(--container-color-alt);
    border-radius: var(--surface-radius);
    border: 1px solid var(--surface-border);
}

.repo-tags .tag {
    background-color: rgba(114, 97, 213, 0.15);
    color: var(--first-color-alt);
    border-radius: 999px;
}

.books__slider {
    padding: var(--space-sm);
    background-color: var(--container-color);
    border-radius: calc(var(--surface-radius) + 4px);
    border: 1px solid var(--surface-border);
}

.book__card {
    padding: var(--space-sm);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    background: transparent;
}

.book__cover img {
    box-shadow: var(--shadow-subtle);
    border-radius: 12px;
}

.book__title {
    color: var(--title-color);
    font-weight: 600;
    font-size: 1.05rem;
}

.book__date {
    color: var(--text-color-light);
    font-size: 0.85rem;
}

.books__nav-btn {
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--title-color);
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.books__nav-btn:hover {
    background-color: rgba(114, 97, 213, 0.2);
    transform: translateY(-2px);
}

.contact__card {
    padding: var(--space-md);
}

.contact__button {
    color: var(--first-color);
}

.footer {
    background-color: rgba(12, 14, 22, 0.92);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: var(--space-lg) 0;
}

.footer__title {
    color: var(--title-color);
    letter-spacing: 0.08em;
}

.footer__social-link {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--title-color);
    border-radius: 999px;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.footer__social-link:hover {
    background-color: var(--first-color);
    transform: translateY(-2px);
}

@media screen and (min-width: 992px) {
    .container {
        max-width: 1040px;
    }

    .home__container {
        align-items: center;
        column-gap: var(--space-xl);
    }

    .home__data {
        text-align: left;
    }
}