/* -----------------------------------------
   ABOUT PAGE
----------------------------------------- */

.about-page {
    padding-block: 0;
}


/* -----------------------------------------
   PROFILE
----------------------------------------- */

.about-profile {
    padding-block: 110px;
}


/* -----------------------------------------
   PROFILE GRID
----------------------------------------- */

.about-profile__grid {
    display: grid;

    grid-template-columns:
        minmax(280px, 0.7fr)
        minmax(0, 1.3fr);

    gap: 80px;
}


/* -----------------------------------------
   INTRO
----------------------------------------- */

.about-profile__intro {
    position: sticky;

    top: 120px;

    align-self: start;
}

.about-profile__intro h1 {
    max-width: 500px;

    margin: 20px 0 0;

    font-size: clamp(44px, 6vw, 78px);

    line-height: 0.98;

    letter-spacing: -0.045em;
}

.about-profile__intro h1 span {
    display: block;

    color: var(--color-text-muted);
}


/* -----------------------------------------
   CONTENT
----------------------------------------- */

.about-profile__content {
    max-width: 700px;
}

.about-profile__content p {
    margin: 0 0 24px;

    color: var(--color-text-muted);

    font-size: 17px;

    line-height: 1.8;
}

.about-profile__content .about-profile__lead {
    margin-bottom: 35px;

    color: var(--color-text);

    font-size: 21px;

    line-height: 1.6;
}


/* -----------------------------------------
   ACTIONS
----------------------------------------- */

.about-profile__actions {
    display: flex;

    flex-wrap: wrap;

    gap: 14px;

    margin-top: 40px;
}


/* -----------------------------------------
   RESPONSIVE
----------------------------------------- */

@media (max-width: 768px) {

    .about-profile {
        padding-block: 80px;
    }

    .about-profile__grid {
        grid-template-columns: 1fr;

        gap: 40px;
    }

    .about-profile__intro {
        position: static;
    }

    .about-profile__content p {
        font-size: 16px;
    }

    .about-profile__content .about-profile__lead {
        font-size: 19px;
    }

    .about-profile__actions {
        flex-direction: column;

        align-items: stretch;
    }

    .about-profile__actions .button {
        width: 100%;
    }

}

/* ========================================
   EXPERIENCE
======================================== */

.about-experience {
    padding-block: 110px;
    border-top: 1px solid var(--color-border);
}

.about-experience__header {
    max-width: 760px;
    margin-bottom: 80px;
}

.about-experience__header h2 {
    margin: 20px 0 0;
    font-size: clamp(38px, 5vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.about-experience__header h2 span {
    color: var(--color-text-muted);
}

.about-experience__timeline {
    position: relative;
    max-width: 900px;
    margin-inline: auto;
}

.about-experience__timeline::before {
    content: "";
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: 7px;
    width: 1px;
    background: var(--color-border);
}

.experience-item {
    position: relative;
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 30px;
    padding-bottom: 70px;
}

.experience-item:last-child {
    padding-bottom: 0;
}

.experience-item__marker {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
}

.experience-item__marker span {
    display: block;
    width: 15px;
    height: 15px;
    margin-top: 3px;
    border: 2px solid var(--color-text);
    border-radius: 50%;
    background: var(--color-background);
}

.experience-item__category {
    margin: 0 0 12px;
    color: var(--color-text-muted);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.14em;
}

.experience-item__content h3 {
    margin: 0 0 18px;
    font-size: clamp(24px, 3vw, 34px);
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.experience-item__content > p:not(.experience-item__category) {
    max-width: 700px;
    margin: 0 0 24px;
    color: var(--color-text-muted);
    font-size: 16px;
    line-height: 1.8;
}

.experience-item__content ul {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 30px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.experience-item__content li {
    position: relative;
    padding-left: 18px;
    color: var(--color-text-muted);
    font-size: 14px;
}

.experience-item__content li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--color-text);
}


/* ========================================
   EXPERIENCE RESPONSIVE
======================================== */

@media (max-width: 768px) {

    .about-experience {
        padding-block: 80px;
    }

    .about-experience__header {
        margin-bottom: 55px;
    }

    .experience-item {
        grid-template-columns: 24px minmax(0, 1fr);
        gap: 20px;
        padding-bottom: 55px;
    }

    .about-experience__timeline::before {
        left: 6px;
    }

    .experience-item__marker span {
        width: 13px;
        height: 13px;
    }

    .experience-item__content ul {
        grid-template-columns: 1fr;
    }

}

/* ========================================
   ABOUT SKILLS
======================================== */

.about-skills {
    padding-block: 110px;
    border-top: 1px solid var(--color-border);
}

.about-skills__header {
    max-width: 760px;
    margin-bottom: 65px;
}

.about-skills__header h2 {
    margin: 20px 0 20px;
    font-size: clamp(38px, 5vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.about-skills__header h2 span {
    color: var(--color-text-muted);
}

.about-skills__header > p:last-child {
    max-width: 650px;
    margin: 0;
    color: var(--color-text-muted);
    font-size: 17px;
    line-height: 1.8;
}

.about-skills__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
}

.about-skill-group {
    min-height: 220px;
    padding: 35px;
    background: var(--color-background);
}

.about-skill-group h3 {
    margin: 0 0 25px;
    font-size: 20px;
    letter-spacing: -0.02em;
}

.about-skill-group__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
}

.about-skill-group__tags span {
    display: inline-flex;
    align-items: center;
    padding: 8px 12px;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    color: var(--color-text-muted);
    font-size: 13px;
    line-height: 1;
    transition:
        color 0.2s ease,
        border-color 0.2s ease,
        background 0.2s ease;
}

.about-skill-group__tags span:hover {
    color: var(--color-text);
    border-color: var(--color-text-muted);
    background: var(--color-surface);
}


/* ========================================
   ABOUT SKILLS RESPONSIVE
======================================== */

@media (max-width: 768px) {

    .about-skills {
        padding-block: 80px;
    }

    .about-skills__header {
        margin-bottom: 45px;
    }

    .about-skills__header > p:last-child {
        font-size: 16px;
    }

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

    .about-skill-group {
        min-height: auto;
        padding: 28px 24px;
    }

}

/* ========================================
   ABOUT CERTIFICATIONS
======================================== */

.about-certifications {
    padding-block: 110px;
    border-top: 1px solid var(--color-border);
}

.about-certifications__header {
    max-width: 760px;
    margin-bottom: 65px;
}

.about-certifications__header h2 {
    margin: 20px 0;
    font-size: clamp(38px, 5vw, 64px);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.about-certifications__header h2 span {
    color: var(--color-text-muted);
}

.about-certifications__header > p:last-child {
    max-width: 650px;
    margin: 0;
    color: var(--color-text-muted);
    font-size: 17px;
    line-height: 1.8;
}

.about-certifications__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.certification-card {
    display: flex;
    min-height: 340px;
    flex-direction: column;
    padding: 35px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    transition:
        transform 0.25s ease,
        border-color 0.25s ease;
}

.certification-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-text-muted);
}

.certification-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--color-border);
}

.certification-card__number {
    color: var(--color-text-muted);
    font-size: 13px;
    font-weight: 600;
}

.certification-card__issuer {
    color: var(--color-text-muted);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.15em;
}

.certification-card__content {
    flex: 1;
    padding-block: 30px;
}

.certification-card__content h3 {
    max-width: 500px;
    margin: 0 0 18px;
    font-size: clamp(24px, 3vw, 32px);
    line-height: 1.2;
    letter-spacing: -0.025em;
}

.certification-card__content p {
    max-width: 600px;
    margin: 0;
    color: var(--color-text-muted);
    font-size: 15px;
    line-height: 1.8;
}

.certification-card__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.certification-card__bottom > span {
    color: var(--color-text-muted);
    font-size: 12px;
}

.certification-card__bottom a {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: var(--color-text);
    font-size: 13px;
    font-weight: 600;
}

.certification-card__bottom a:hover {
    text-decoration: underline;
}

.certification-card__bottom a span {
    font-size: 16px;
}


/* ========================================
   CERTIFICATIONS RESPONSIVE
======================================== */

@media (max-width: 768px) {

    .about-certifications {
        padding-block: 80px;
    }

    .about-certifications__header {
        margin-bottom: 45px;
    }

    .about-certifications__header > p:last-child {
        font-size: 16px;
    }

    .about-certifications__grid {
        grid-template-columns: 1fr;
    }

    .certification-card {
        min-height: 320px;
        padding: 28px 24px;
    }

    .certification-card__content h3 {
        font-size: 25px;
    }

    .certification-card__bottom {
        align-items: flex-start;
        flex-direction: column;
    }

}