/* ============================================================
   ABOUT PAGE
============================================================= */

.about-hero-section {
    padding: 45px 0 72px;
    background: linear-gradient(180deg, #fbfcfe 0%, var(--prs-white) 100%);
    border-bottom: 1px solid var(--prs-line);
}

.about-hero {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 75px;
    align-items: center;
}

.about-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 22px;
    color: var(--prs-orange);
    font-size: 11px;
    font-weight: 850;
    letter-spacing: 1.2px;
    text-transform: uppercase;
}

.about-eyebrow .status-dot {
    width: 6px;
    height: 6px;
}

.about-hero h1 {
    max-width: 700px;
    margin: 0;
    color: var(--prs-navy);
    font-size: clamp(42px, 5vw, 66px);
    line-height: 1.02;
    letter-spacing: -2.5px;
    font-weight: 850;
}

.about-hero h1 span {
    display: block;
    color: var(--prs-orange);
}

.about-hero-content>p {
    max-width: 590px;
    margin: 22px 0 27px;
    color: var(--prs-muted);
    font-size: 14px;
    line-height: 1.85;
}

.about-hero-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-hero-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
}

.about-hero-actions i {
    font-size: 11px;
}

/* ============================================================
   HERO PANEL
============================================================= */

.about-hero-panel {
    position: relative;
    overflow: hidden;
    min-height: 390px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid var(--prs-line);
    border-radius: 22px;
    background: linear-gradient(145deg, #ffffff 0%, #f7f8fb 100%);
    box-shadow: var(--prs-shadow);
}

.about-hero-panel::before {
    content: "";
    position: absolute;
    width: 330px;
    height: 330px;
    right: -125px;
    top: -120px;
    border-radius: 50%;
    background: var(--prs-gradient-soft);
}

.about-panel-top,
.about-panel-bottom {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 17px 20px;
    color: var(--prs-muted);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .8px;
}

.about-panel-top {
    border-bottom: 1px solid var(--prs-line);
}

.about-panel-bottom {
    border-top: 1px solid var(--prs-line);
}

.about-panel-bottom span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.about-panel-bottom i {
    color: var(--prs-orange);
    font-size: 11px;
}

.about-panel-main {
    position: relative;
    z-index: 1;
    padding: 38px;
}

.about-panel-number {
    margin-bottom: 18px;
    color: rgba(43, 49, 83, .10);
    font-size: 68px;
    line-height: .8;
    font-weight: 900;
    letter-spacing: -4px;
}

.about-panel-main h2 {
    max-width: 430px;
    margin: 0;
    color: var(--prs-navy);
    font-size: 31px;
    line-height: 1.12;
    letter-spacing: -1px;
    font-weight: 850;
}

.about-panel-main h2 span {
    display: block;
    color: var(--prs-orange);
}

.about-panel-main p {
    max-width: 380px;
    margin: 16px 0 0;
    color: var(--prs-muted);
    font-size: 13px;
    line-height: 1.75;
}

/* ============================================================
   SECTION HEADINGS
============================================================= */

.about-section-heading {
    margin-bottom: 38px;
}

.about-heading-grid {
    display: grid;
    grid-template-columns: 1.05fr .95fr;
    gap: 80px;
    align-items: end;
}

.about-heading-grid h2 {
    max-width: 650px;
    margin: 0;
    color: var(--prs-navy);
    font-size: clamp(35px, 4vw, 53px);
    line-height: 1.07;
    letter-spacing: -1.8px;
    font-weight: 850;
}

.about-heading-grid h2 span {
    display: block;
    color: var(--prs-orange);
}

.about-heading-grid>p {
    max-width: 520px;
    margin: 0;
    color: var(--prs-muted);
    font-size: 14px;
    line-height: 1.85;
}

/* ============================================================
   WHO WE ARE
============================================================= */

.about-story-section {
    background: var(--prs-white);
    border-bottom: 1px solid var(--prs-line);
}

.about-story-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.about-story-card {
    position: relative;
    overflow: hidden;
    min-height: 285px;
    padding: 25px;
    border: 1px solid var(--prs-line);
    border-radius: var(--prs-radius);
    background: var(--prs-white);
    box-shadow: 0 10px 35px rgba(43, 49, 83, .035);
    transition: transform var(--prs-transition), border-color var(--prs-transition), box-shadow var(--prs-transition);
}

.about-story-card::after {
    content: "";
    position: absolute;
    width: 130px;
    height: 130px;
    right: -50px;
    top: -50px;
    border-radius: 50%;
    background: var(--prs-gradient-soft);
}

.about-story-card:hover {
    transform: translateY(-4px);
    border-color: rgba(248, 103, 59, .30);
    box-shadow: var(--prs-shadow);
}

.about-card-number {
    position: absolute;
    right: 18px;
    top: 17px;
    z-index: 1;
    color: rgba(43, 49, 83, .16);
    font-size: 13px;
    font-weight: 850;
}

.about-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    margin-bottom: 27px;
    border: 1px solid rgba(248, 103, 59, .20);
    border-radius: 12px;
    background: rgba(248, 103, 59, .07);
    color: var(--prs-orange);
    font-size: 16px;
}

.about-story-card h3 {
    margin: 0 0 10px;
    color: var(--prs-navy);
    font-size: 18px;
    font-weight: 850;
}

.about-story-card p {
    margin: 0;
    color: var(--prs-muted);
    font-size: 13px;
    line-height: 1.8;
}

/* ============================================================
   WHAT WE DO
============================================================= */

.about-capabilities-section {
    background: var(--prs-soft);
    border-bottom: 1px solid var(--prs-line);
}

.about-capabilities {
    display: grid;
    grid-template-columns: .85fr 1.15fr;
    gap: 80px;
    align-items: start;
}

.about-capabilities-intro h2 {
    max-width: 500px;
    margin: 0;
    color: var(--prs-navy);
    font-size: clamp(35px, 4vw, 50px);
    line-height: 1.06;
    letter-spacing: -1.7px;
    font-weight: 850;
}

.about-capabilities-intro h2 span {
    display: block;
    color: var(--prs-orange);
}

.about-capabilities-intro>p {
    max-width: 450px;
    margin: 17px 0 22px;
    color: var(--prs-muted);
    font-size: 14px;
    line-height: 1.8;
}

.about-inline-link {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--prs-navy);
    font-size: 12px;
    font-weight: 850;
    transition: color var(--prs-transition), gap var(--prs-transition);
}

.about-inline-link i {
    color: var(--prs-orange);
    font-size: 11px;
}

.about-inline-link:hover {
    gap: 13px;
    color: var(--prs-orange);
}

.about-capability-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--prs-line);
    border-left: 1px solid var(--prs-line);
}

.about-capability {
    display: flex;
    align-items: flex-start;
    gap: 13px;
    min-height: 118px;
    padding: 20px;
    border-right: 1px solid var(--prs-line);
    border-bottom: 1px solid var(--prs-line);
    background: var(--prs-white);
    transition: background var(--prs-transition);
}

.about-capability:hover {
    background: rgba(248, 103, 59, .035);
}

.about-capability-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 37px;
    height: 37px;
    flex: 0 0 37px;
    border: 1px solid rgba(248, 103, 59, .20);
    border-radius: 9px;
    background: rgba(248, 103, 59, .06);
    color: var(--prs-orange);
    font-size: 14px;
}

.about-capability strong {
    display: block;
    margin: 1px 0 6px;
    color: var(--prs-navy);
    font-size: 14px;
    font-weight: 850;
}

.about-capability p {
    margin: 0;
    color: var(--prs-muted);
    font-size: 11px;
    line-height: 1.7;
}

/* ============================================================
   OUR APPROACH
============================================================= */

.about-approach-section {
    background: var(--prs-white);
    border-bottom: 1px solid var(--prs-line);
}

.about-approach-line {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
}

.about-approach-line::before {
    content: "";
    position: absolute;
    left: 45px;
    right: 45px;
    top: 19px;
    height: 1px;
    background: var(--prs-line);
}

.approach-step {
    position: relative;
    z-index: 1;
    padding-right: 25px;
}

.approach-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 39px;
    height: 39px;
    margin-bottom: 19px;
    border: 1px solid rgba(248, 103, 59, .25);
    border-radius: 50%;
    background: var(--prs-white);
    color: var(--prs-orange);
    font-size: 11px;
    font-weight: 850;
}

.approach-step h3 {
    margin: 0 0 7px;
    color: var(--prs-navy);
    font-size: 15px;
    font-weight: 850;
}

.approach-step p {
    max-width: 220px;
    margin: 0;
    color: var(--prs-muted);
    font-size: 12px;
    line-height: 1.75;
}

/* ============================================================
   VISION & MISSION
============================================================= */

.about-direction-section {
    background: var(--prs-soft);
    border-bottom: 1px solid var(--prs-line);
}

.about-direction-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 17px;
}

.about-direction-card {
    padding: 27px;
    border: 1px solid var(--prs-line);
    border-radius: var(--prs-radius);
    background: var(--prs-white);
    box-shadow: 0 10px 35px rgba(43, 49, 83, .035);
}

.about-direction-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 30px;
}

.about-direction-top>span {
    color: rgba(43, 49, 83, .25);
    font-size: 12px;
    font-weight: 850;
}

.about-direction-top i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 39px;
    height: 39px;
    border: 1px solid rgba(248, 103, 59, .20);
    border-radius: 10px;
    background: rgba(248, 103, 59, .07);
    color: var(--prs-orange);
    font-size: 14px;
}

.about-direction-label {
    display: block;
    margin-bottom: 9px;
    color: var(--prs-orange);
    font-size: 10px;
    font-weight: 850;
    letter-spacing: 1px;
}

.about-direction-card h3 {
    max-width: 570px;
    margin: 0 0 17px;
    color: var(--prs-navy);
    font-size: 25px;
    line-height: 1.18;
    letter-spacing: -.7px;
    font-weight: 850;
}

.about-direction-card h3 span {
    display: block;
    color: var(--prs-orange);
}

.about-direction-card p {
    max-width: 570px;
    margin: 0 0 13px;
    color: var(--prs-muted);
    font-size: 13px;
    line-height: 1.8;
}

/* ============================================================
   COMPANY PROFILE
============================================================= */

.about-profile-section {
    background: var(--prs-white);
}

.about-profile {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 35px;
    padding: 38px 42px;
    border: 1px solid rgba(248, 103, 59, .20);
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(248, 103, 59, .055), rgba(43, 49, 83, .045));
}

.about-profile::after {
    content: "";
    position: absolute;
    width: 260px;
    height: 260px;
    right: -100px;
    top: -120px;
    border-radius: 50%;
    background: rgba(248, 103, 59, .07);
}

.about-profile h2 {
    position: relative;
    z-index: 1;
    margin: 0;
    color: var(--prs-navy);
    font-size: 31px;
    line-height: 1.1;
    letter-spacing: -1px;
    font-weight: 850;
}

.about-profile h2 span {
    color: var(--prs-orange);
}

.about-profile p {
    position: relative;
    z-index: 1;
    max-width: 650px;
    margin: 10px 0 0;
    color: var(--prs-muted);
    font-size: 13px;
    line-height: 1.75;
}

.about-profile .btn {
    position: relative;
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    flex-shrink: 0;
}

.about-profile .btn i {
    font-size: 11px;
}

/* ============================================================
   CONTACT CTA
============================================================= */

.about-contact-section {
    background: var(--prs-white);
}

.about-contact {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 45px;
    padding: 48px 45px;
    border-radius: 21px;
    background: var(--prs-gradient);
    box-shadow: var(--prs-shadow);
}

.about-contact::before {
    content: "";
    position: absolute;
    width: 330px;
    height: 330px;
    right: -100px;
    top: -180px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .10);
}

.about-contact .about-eyebrow {
    color: var(--prs-white);
    margin-bottom: 13px;
}

.about-contact .about-eyebrow .status-dot {
    background: var(--prs-white);
}

.about-contact h2 {
    position: relative;
    z-index: 1;
    max-width: 680px;
    margin: 0;
    color: var(--prs-white);
    font-size: clamp(29px, 4vw, 43px);
    line-height: 1.08;
    letter-spacing: -1.3px;
    font-weight: 850;
}

.about-contact h2 span {
    display: block;
    color: rgba(255, 255, 255, .78);
}

.about-contact p {
    position: relative;
    z-index: 1;
    max-width: 620px;
    margin: 12px 0 0;
    color: rgba(255, 255, 255, .78);
    font-size: 13px;
    line-height: 1.75;
}

.about-contact-actions {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    flex-shrink: 0;
}

.about-contact-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    background: var(--prs-white);
    border-color: var(--prs-white);
    color: var(--prs-navy);
}

.about-contact-actions .btn i {
    font-size: 11px;
}

.about-phone {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--prs-white);
}

.about-phone>i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 35px;
    height: 35px;
    border: 1px solid rgba(255, 255, 255, .30);
    border-radius: 50%;
    background: rgba(255, 255, 255, .10);
    font-size: 13px;
}

.about-phone span {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.about-phone small {
    color: rgba(255, 255, 255, .65);
    font-size: 9px;
    font-weight: 800;
    letter-spacing: .7px;
    text-transform: uppercase;
}

.about-phone {
    font-size: 12px;
    font-weight: 800;
}

/* ============================================================
   TABLET
============================================================= */

@media (max-width:1000px) {
    .about-hero {
        grid-template-columns: 1fr;
        gap: 45px;
    }

    .about-hero-panel {
        max-width: 650px;
    }

    .about-heading-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .about-capabilities {
        grid-template-columns: 1fr;
        gap: 35px;
    }

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

    .about-profile {
        align-items: flex-start;
        flex-direction: column;
    }

    .about-contact {
        align-items: flex-start;
        flex-direction: column;
    }

    .about-contact-actions {
        flex-direction: row;
        align-items: center;
    }
}

/* ============================================================
   MOBILE
============================================================= */

@media (max-width:760px) {
    .about-hero-section {
        padding: 45px 0 55px;
    }

    .about-hero h1 {
        font-size: 43px;
        letter-spacing: -1.5px;
    }

    .about-hero-content>p {
        font-size: 14px;
    }

    .about-hero-actions {
        flex-wrap: wrap;
    }

    .about-hero-panel {
        min-height: 330px;
    }

    .about-panel-main {
        padding: 30px;
    }

    .about-panel-main h2 {
        font-size: 27px;
    }

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

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

    .about-approach-line {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .about-approach-line::before {
        left: 19px;
        right: auto;
        top: 20px;
        bottom: 20px;
        width: 1px;
        height: auto;
    }

    .approach-step {
        display: grid;
        grid-template-columns: 39px 1fr;
        gap: 15px;
        padding-right: 0;
    }

    .approach-number {
        margin-bottom: 0;
    }

    .about-direction-card {
        padding: 23px;
    }

    .about-direction-card h3 {
        font-size: 22px;
    }

    .about-profile {
        padding: 30px 25px;
    }

    .about-profile h2 {
        font-size: 27px;
    }

    .about-contact {
        padding: 34px 25px;
    }

    .about-contact-actions {
        align-items: flex-start;
        flex-direction: column;
    }

    .about-contact h2 {
        font-size: 31px;
    }
}

/* ============================================================
   SMALL MOBILE
============================================================= */

@media (max-width:480px) {
    .about-hero h1 {
        font-size: 36px;
    }

    .about-panel-top,
    .about-panel-bottom {
        padding: 14px;
        font-size: 9px;
    }

    .about-panel-bottom {
        flex-wrap: wrap;
        justify-content: flex-start;
    }

    .about-panel-main {
        padding: 25px;
    }

    .about-panel-number {
        font-size: 55px;
    }

    .about-panel-main h2 {
        font-size: 24px;
    }

    .about-heading-grid h2,
    .about-capabilities-intro h2 {
        font-size: 34px;
    }

    .about-profile .btn,
    .about-contact-actions .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ============================================================
   ACTIVE NAVIGATION
============================================================= */

.nav-links a.active {
    position: relative;
    color: var(--prs-orange);
}

.nav-links a.active::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -9px;
    height: 2px;
    border-radius: 10px;
    background: var(--prs-orange);
}


/* ============================================================
   COMPANY CERTIFICATES — RESPONSIVE GRID
============================================================ */

.about-certificates-section {
    padding: 70px 0;
    background: var(--prs-white, #fff);
}

.about-certificates-section .about-section-heading {
    margin-bottom: 36px;
}

.about-certificates-section .about-heading-grid {
    align-items: center;
}

.about-certificates-section .about-heading-grid h2 {
    margin: 0;
    color: var(--prs-orange, #ff6347);
}

.about-cert-carousel {
    position: relative;
    width: 100%;
}

.about-cert-stage {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 20px;
    align-items: stretch;
    height: auto;
    min-height: 0;
    perspective: none;
}

.about-cert-stage .about-cert-card {
    position: relative;
    inset: auto;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: none;
    height: 100%;
    min-width: 0;
    margin: 0;
    opacity: 1;
    visibility: visible;
    filter: none;
    transform: none;
    cursor: pointer;
    overflow: hidden;
    border: 1px solid var(--prs-line, #e5e7eb);
    border-radius: 15px;
    background: #fff;
    box-shadow: 0 7px 22px rgba(20, 30, 50, 0.06);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.about-cert-stage .about-cert-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 13px 30px rgba(20, 30, 50, 0.12);
}

.about-cert-img-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 205px;
    padding: 12px;
    overflow: hidden;
    background: #f7f9fc;
    border-bottom: 1px solid var(--prs-line, #e5e7eb);
}

.about-cert-img-wrap img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    user-select: none;
}

.about-cert-info {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 15px 12px;
    text-align: center;
}

.about-cert-info strong {
    color: var(--prs-navy, #17213c);
    font-size: 14px;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.about-cert-info span {
    color: var(--prs-muted, #7b8495);
    font-size: 12px;
}

/* Hide carousel controls on the normal About page. */
.about-cert-stage ~ .about-cert-nav,
.about-cert-carousel > .about-cert-nav,
.about-cert-position,
.about-cert-hint {
    display: none !important;
}

/* ============================================================
   CERTIFICATE LIGHTBOX — DARK MODAL
============================================================ */

.about-cert-lightbox {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
    overflow: hidden;
    background: rgba(9, 15, 30, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.about-cert-lightbox.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.about-cert-lightbox-close {
    position: absolute;
    top: 24px;
    right: 30px;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    font-size: 32px;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

.about-cert-lightbox-close:hover {
    background: var(--prs-orange, #ff6347);
    transform: rotate(90deg);
}

/* Original single-image preview, retained for compatibility. */
.about-cert-lightbox > img {
    position: relative;
    z-index: 2;
    display: block;
    max-width: min(90vw, 1050px);
    max-height: 86vh;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 25px 90px rgba(0, 0, 0, 0.4);
    transform: scale(0.94);
    transition: transform 0.3s ease;
}

.about-cert-lightbox.is-open > img {
    transform: scale(1);
}

/* ============================================================
   3D COVER FLOW — MODAL ONLY
============================================================ */

.about-cert-lightbox .about-cert-flow {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: min(1100px, 100%);
    height: min(78vh, 720px);
    min-height: 320px;
    margin: auto;
    perspective: 1400px;
    transform-style: preserve-3d;
}

.about-cert-lightbox .about-cert-flow-card {
    position: absolute;
    top: 50%;
    left: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    width: min(62vw, 650px);
    height: 80%;
    max-width: 650px;
    transform-style: preserve-3d;
    transition:
        transform 0.4s ease,
        opacity 0.4s ease,
        filter 0.4s ease;
}

.about-cert-lightbox .about-cert-flow-card img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 20px 65px rgba(0, 0, 0, 0.35);
}

.about-cert-lightbox .about-cert-flow-card.is-active {
    z-index: 3;
    opacity: 1;
    filter: none;
    transform: translate(-50%, -50%) translateZ(100px) scale(1);
}

.about-cert-lightbox .about-cert-flow-card.is-prev {
    z-index: 2;
    opacity: 0.65;
    filter: blur(2px);
    transform: translate(-115%, -50%) translateZ(-150px)
        rotateY(20deg) scale(0.72);
}

.about-cert-lightbox .about-cert-flow-card.is-next {
    z-index: 2;
    opacity: 0.65;
    filter: blur(2px);
    transform: translate(15%, -50%) translateZ(-150px)
        rotateY(-20deg) scale(0.72);
}

.about-cert-lightbox .about-cert-flow-card.is-hidden {
    z-index: 1;
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -50%) translateZ(-300px) scale(0.5);
}

/* Navigation buttons are visible inside the modal. */
.about-cert-lightbox .about-cert-flow .about-cert-nav {
    position: absolute;
    top: 50%;
    z-index: 20;
    display: flex !important;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    cursor: pointer;
    transform: translateY(-50%);
}

.about-cert-lightbox .about-cert-flow .about-cert-prev {
    left: 12px;
}

.about-cert-lightbox .about-cert-flow .about-cert-next {
    right: 12px;
}

.about-cert-lightbox .about-cert-flow .about-cert-nav:hover {
    background: var(--prs-orange, #ff6347);
}

.about-cert-lightbox .about-cert-flow .about-cert-position {
    position: absolute;
    bottom: 0;
    left: 50%;
    z-index: 20;
    display: block !important;
    color: #fff;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 2px;
    transform: translateX(-50%);
}

/* ============================================================
   TABLET
============================================================ */

@media (max-width: 1000px) {
    .about-cert-stage {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
    }

    .about-cert-img-wrap {
        height: 220px;
    }
}

/* ============================================================
   MOBILE — ONE CERTIFICATE PER ROW
============================================================ */

@media (max-width: 600px) {
    .about-certificates-section {
        padding: 48px 0;
    }

    .about-certificates-section .about-section-heading {
        margin-bottom: 25px;
    }

    .about-cert-stage {
        grid-template-columns: minmax(0, 1fr);
        gap: 18px;
    }

    .about-cert-img-wrap {
        height: 250px;
        padding: 12px;
    }

    .about-cert-info {
        padding: 15px 12px;
    }

    .about-cert-info strong {
        font-size: 14px;
    }

    .about-cert-lightbox {
        padding: 12px;
    }

    .about-cert-lightbox-close {
        top: 12px;
        right: 12px;
        width: 42px;
        height: 42px;
    }

    .about-cert-lightbox .about-cert-flow {
        width: 100%;
        height: 72vh;
        min-height: 280px;
    }

    .about-cert-lightbox .about-cert-flow-card {
        width: 76vw;
        height: 65%;
    }

    .about-cert-lightbox .about-cert-flow-card.is-prev {
        transform: translate(-100%, -50%) translateZ(-150px)
            rotateY(16deg) scale(0.62);
    }

    .about-cert-lightbox .about-cert-flow-card.is-next {
        transform: translate(0%, -50%) translateZ(-150px)
            rotateY(-16deg) scale(0.62);
    }

    .about-cert-lightbox .about-cert-flow .about-cert-prev {
        left: 0;
    }

    .about-cert-lightbox .about-cert-flow .about-cert-next {
        right: 0;
    }
}

/* ============================================================
   REDUCED MOTION
============================================================ */

@media (prefers-reduced-motion: reduce) {
    .about-cert-stage .about-cert-card,
    .about-cert-lightbox,
    .about-cert-lightbox img,
    .about-cert-lightbox .about-cert-flow-card {
        transition: none;
    }
}


/* ============================================================
   CERTIFICATE LIGHTBOX — ZOOM SUPPORT
============================================================ */

.about-cert-lightbox .about-cert-flow-card img {
    cursor: zoom-in;
    transform: scale(1);
    transform-origin: center center;
    transition: transform 0.2s ease;
}

.about-cert-lightbox .about-cert-flow-card.is-active img.is-zoomed {
    cursor: zoom-out;
    transform: scale(1.8);
}

.about-cert-lightbox .about-cert-flow-card.is-active {
    overflow: visible;
}

.about-cert-lightbox .about-cert-flow {
    overflow: hidden;
    touch-action: pan-y;
}

.about-cert-lightbox .about-cert-flow.is-zoomed {
    overflow: auto;
    cursor: grab;
    touch-action: pan-x pan-y;
}

.about-cert-lightbox .about-cert-flow.is-zoomed img {
    user-select: none;
}

@media (max-width: 600px) {
    .about-cert-lightbox .about-cert-flow-card.is-active img.is-zoomed {
        transform: scale(1.5);
    }
}