/* Header Styles for About Page */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-1);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header__container {
    max-width: 120rem;
    margin: 0 auto;
    padding: 2rem var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--color-4);
    text-decoration: none;
    transition: color 0.3s ease;
}

.header__logo:hover {
    color: var(--color-white);
}

.header__nav {
    display: flex;
    align-items: center;
}

.header__menu {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.header__menu a {
    font-size: 1.6rem;
    color: var(--color-white);
    text-decoration: none;
    padding: 0.8rem 1.6rem;
    transition: all 0.3s ease;
    position: relative;
}

.header__menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-4);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.header__menu a:hover::after,
.header__menu a.active::after {
    transform: scaleX(1);
}

.header__menu a:hover,
.header__menu a.active {
    color: var(--color-4);
}

.header__mobile-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.header__mobile-menu span {
    display: block;
    width: 2.5rem;
    height: 0.2rem;
    background-color: var(--color-white);
    margin: 0.5rem 0;
    transition: all 0.3s ease;
}

/* Mobile Menu Active States */
.header__mobile-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(0.5rem, 0.5rem);
}

.header__mobile-menu.active span:nth-child(2) {
    opacity: 0;
}

.header__mobile-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(0.5rem, -0.5rem);
}

@media (max-width: 768px) {
    .header__mobile-menu {
        display: block;
    }

    .header__nav {
        position: fixed;
        top: 7rem;
        left: 0;
        width: 100%;
        background-color: var(--color-1);
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .header__nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .header__menu {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }

    .header__menu a {
        display: block;
        width: 100%;
        text-align: center;
        padding: 1.2rem;
    }
}

/* About Page Styles */
.about {
    padding: var(--spacing-xxl) 0;
    background-color: var(--color-1);
    min-height: 100vh;
    padding-top: 12rem;
}

.about-hero {
    background-color: var(--color-1);
    padding: 120px 0 60px;
    text-align: center;
}

.about-hero__title {
    color: var(--color-white);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.about-hero__subtitle {
    color: var(--color-4);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

/* About Content */
.about-content {
    padding: 80px 0;
    background-color: var(--color-white);
}

.about-content__grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 40px;
    align-items: center;
}

.about-content__image {
    position: relative;
}

.about-content__image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-content__text p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--color-1);
}

/* Skills Section */
.skills {
    padding: 80px 0;
    background-color: var(--color-1);
}

.skills__title {
    color: var(--color-white);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
}

.skills__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.skill-card {
    background-color: var(--color-white);
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.skill-card__title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    color: var(--color-1);
    margin-bottom: 30px;
}

.skill-card__title i {
    color: var(--color-4);
}

.skill-item {
    margin-bottom: 20px;
}

.skill-item__name {
    display: block;
    margin-bottom: 10px;
    color: var(--color-1);
}

.skill-item__bar {
    height: 8px;
    background-color: var(--color-2);
    border-radius: 4px;
    overflow: hidden;
}

.skill-item__progress {
    height: 100%;
    background-color: var(--color-4);
    border-radius: 4px;
    transition: width 1s ease-in-out;
}

/* Timeline Section */
.timeline {
    padding: 80px 0;
    background-color: var(--color-white);
}

.timeline__title {
    color: var(--color-1);
    font-size: 3rem;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 600;
}

.timeline__roadmap {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 0;
}

.timeline__roadmap::before {
    content: '';
    position: absolute;
    top: 0;
    left: 30px;
    height: 100%;
    width: 4px;
    background: linear-gradient(to bottom, var(--color-4), var(--color-3));
    border-radius: 2px;
}

.timeline__item {
    position: relative;
    margin-bottom: 60px;
    padding-left: 80px;
}

.timeline__item:last-child {
    margin-bottom: 0;
}

.timeline__content {
    position: relative;
    padding: 30px;
    background-color: var(--color-white);
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.timeline__content:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.timeline__icon {
    position: absolute;
    left: -65px;
    top: 20px;
    width: 50px;
    height: 50px;
    background-color: var(--color-4);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 5px var(--color-white);
}

.timeline__icon i {
    color: var(--color-white);
    font-size: 1.5rem;
}

.timeline__info {
    position: relative;
}

.timeline__date {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--color-4);
    color: var(--color-white);
    border-radius: 20px;
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 15px;
}

.timeline__heading {
    color: var(--color-1);
    font-size: 1.8rem;
    margin-bottom: 15px;
    font-weight: 600;
}

.timeline__description {
    color: var(--color-2);
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.timeline__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.timeline__tag {
    padding: 6px 15px;
    background-color: var(--color-1);
    color: var(--color-white);
    border-radius: 15px;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.timeline__tag:hover {
    background-color: var(--color-4);
}

@media (max-width: 768px) {
    .timeline__roadmap {
        padding: 20px 0;
    }

    .timeline__item {
        padding-left: 60px;
    }

    .timeline__icon {
        left: -45px;
        width: 40px;
        height: 40px;
    }

    .timeline__icon i {
        font-size: 1.2rem;
    }

    .timeline__content {
        padding: 20px;
    }

    .timeline__title {
        font-size: 2.5rem;
    }

    .timeline__date {
        font-size: 1rem;
        padding: 6px 15px;
    }

    .timeline__heading {
        font-size: 1.5rem;
    }

    .timeline__description {
        font-size: 1rem;
    }

    .timeline__tag {
        font-size: 0.9rem;
        padding: 5px 12px;
    }
}

@media (max-width: 576px) {
    .timeline__tags {
        gap: 5px;
    }

    .timeline__tag {
        padding: 4px 10px;
        font-size: 0.75rem;
    }

    .timeline__title {
        font-size: 2rem;
    }

    .timeline__heading {
        font-size: 1.3rem;
    }

    .timeline__description {
        font-size: 0.95rem;
    }

    .timeline__tag {
        font-size: 0.85rem;
        padding: 4px 10px;
    }
}

/* Responsive Design */
@media (max-width: 992px) {
    .about-content__grid {
        grid-template-columns: 1fr;
    }

    .skills__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .about-hero {
        padding: 100px 0 40px;
    }

    .about-hero__title {
        font-size: 2.5rem;
    }

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

    .timeline-item {
        padding-left: 20px;
    }
}

@media (max-width: 576px) {
    .about-hero__title {
        font-size: 2rem;
    }

    .about-hero__subtitle {
        font-size: 1rem;
    }

    .skill-card {
        padding: 20px;
    }
}