/**
 * About page (about.html) — hero, story layout, value pillars.
 */

.about-page-hero {
    position: relative;
    overflow: hidden;
    color: var(--color-white);
    text-align: center;
    background-color: var(--color-primary-dark);
    background-image: var(--section-industrial-grid);
    background-size: var(--section-industrial-grid-size);
}

.about-page-hero__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 80% 55% at 50% -10%, rgba(34, 211, 238, 0.16) 0%, transparent 62%),
        radial-gradient(ellipse 45% 40% at 85% 75%, rgba(250, 204, 21, 0.07) 0%, transparent 58%);
    animation: about-page-hero-glow 9s ease-in-out infinite alternate;
}

.about-page-hero__inner {
    position: relative;
    z-index: 1;
    padding-top: clamp(1rem, 3vw, 1.5rem);
    padding-bottom: clamp(2.5rem, 6vw, 3.75rem);
}

.about-page-hero__eyebrow {
    margin: 0 0 var(--spacing-md);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--color-tech-light);
}

.about-page-hero__title {
    margin: 0 0 var(--spacing-md);
    font-size: clamp(1.85rem, 4.5vw, 2.75rem);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    letter-spacing: -0.02em;
    color: var(--color-white);
}

.about-page-hero__subtitle {
    margin: 0 auto;
    max-width: 40ch;
    font-size: clamp(1rem, 2vw, 1.15rem);
    line-height: var(--line-height-base);
    color: rgba(255, 255, 255, 0.76);
}

.about-page-main {
    background-color: var(--section-industrial-bg);
    background-image: var(--section-industrial-grid);
    background-size: var(--section-industrial-grid-size);
    color: var(--color-white);
}

.about-page-main__inner {
    padding-top: clamp(2.5rem, 5vw, 4rem);
    padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

.about-page-layout {
    display: grid;
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: center;
    grid-template-columns: minmax(0, 1fr);
}

.about-page-kicker {
    margin: 0 0 var(--spacing-lg);
    font-size: clamp(1.35rem, 2.6vw, 1.85rem);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-white);
    max-width: 20ch;
}

.about-page-body {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin: 0 0 var(--spacing-xl);
    padding-left: clamp(0.85rem, 1.6vw, 1.15rem);
    border-left: 2px solid rgba(34, 211, 238, 0.45);
    max-width: 54ch;
}

.about-page-text {
    margin: 0;
    font-size: clamp(0.95rem, 1.05vw, 1.05rem);
    line-height: 1.68;
    color: var(--about-text-muted);
}

.about-page-text--lead {
    font-size: clamp(1.02rem, 1.2vw, 1.125rem);
    color: rgba(255, 255, 255, 0.9);
}

.about-page-text--closing {
    margin-top: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.84);
}

.about-page-pillars {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.65rem 0.85rem;
    margin: 0 0 var(--spacing-2xl);
    max-width: 54ch;
}

.about-page-pillar {
    display: inline-block;
    font-size: clamp(0.82rem, 1vw, 0.92rem);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-tech-light);
    padding: 0.5rem 0.9rem;
    border: 1px solid rgba(34, 211, 238, 0.28);
    border-radius: var(--radius-sm);
    background: rgba(34, 211, 238, 0.06);
    box-shadow: 0 0 18px rgba(34, 211, 238, 0.08);
    transition:
        transform var(--transition-normal),
        border-color var(--transition-normal),
        box-shadow var(--transition-normal),
        background-color var(--transition-normal);
}

.about-page-pillar:hover {
    transform: translateY(-3px);
    border-color: rgba(34, 211, 238, 0.55);
    background: rgba(34, 211, 238, 0.1);
    box-shadow: 0 0 28px rgba(34, 211, 238, 0.2);
}

.about-page-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
}

.about-page-cta .btn {
    min-width: 11rem;
}

.about-page-media {
    width: 100%;
}

.about-page-media__frame {
    position: relative;
    width: 100%;
    aspect-ratio: 5 / 4;
    border-radius: var(--radius-lg);
    border: 1px solid var(--about-border);
    overflow: hidden;
    box-shadow: var(--about-media-shadow);
    background-color: #12161c;
}

.about-page-media__frame::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    border-radius: inherit;
    box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.12);
    animation: about-page-media-ring 5s ease-in-out infinite alternate;
}

.about-page-media__img {
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.about-page-media__accent {
    position: absolute;
    z-index: 2;
    width: 3.5rem;
    height: 3.5rem;
    pointer-events: none;
    border-color: rgba(34, 211, 238, 0.55);
    border-style: solid;
    opacity: 0.85;
}

.about-page-media__accent--tl {
    top: 1rem;
    left: 1rem;
    border-width: 2px 0 0 2px;
}

.about-page-media__accent--br {
    right: 1rem;
    bottom: 1rem;
    border-width: 0 2px 2px 0;
}

@media (min-width: 1024px) {
    .about-page-layout {
        grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    }

    .about-page-kicker {
        max-width: none;
    }
}

@media (max-width: 767px) {
    .about-page-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .about-page-cta .btn {
        width: 100%;
        max-width: 20rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .about-page-hero__bg,
    .about-page-media__frame::before {
        animation: none;
    }

    .about-page-pillar:hover {
        transform: none;
    }
}

@keyframes about-page-hero-glow {
    from {
        opacity: 0.75;
        transform: scale(1);
    }
    to {
        opacity: 1;
        transform: scale(1.04);
    }
}

@keyframes about-page-media-ring {
    from {
        box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.1);
    }
    to {
        box-shadow: inset 0 0 0 1px rgba(34, 211, 238, 0.32), inset 0 0 24px rgba(34, 211, 238, 0.06);
    }
}

/* ========== About page extensions — materials, capabilities, workflow ========== */

.about-page-block__header {
    text-align: center;
    margin-bottom: clamp(2rem, 4vw, 3rem);
    margin-left: auto;
    margin-right: auto;
    max-width: 44rem;
}

.about-page-block__label {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-tech-light);
}

.about-page-block__title {
    margin: 0 0 var(--spacing-md);
    font-size: clamp(1.5rem, 3.2vw, 2.125rem);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    letter-spacing: -0.02em;
    color: var(--color-white);
}

.about-page-block__intro {
    margin: 0 auto;
    max-width: 52ch;
    font-size: clamp(0.95rem, 1.1vw, 1.05rem);
    line-height: 1.65;
    color: var(--about-text-muted);
}

/* Shared dark band — matches .about-page-main */
.about-page-materials,
.about-page-capabilities,
.about-page-workflow {
    background-color: var(--section-industrial-bg);
    background-image: var(--section-industrial-grid);
    background-size: var(--section-industrial-grid-size);
    color: var(--color-white);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* —— Section 1: Material Expertise —— */
.about-page-materials__grid {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: minmax(0, 1fr);
}

.about-page-materials__grid > li {
    margin: 0;
    min-width: 0;
}

.about-page-material-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    background: var(--ai-surface);
    border: 1px solid var(--ai-border-rest);
    box-shadow: 0 0 0 0 transparent;
    transition:
        transform var(--transition-normal),
        border-color var(--transition-normal),
        background-color var(--transition-normal),
        box-shadow var(--transition-slow);
}

.about-page-material-card:hover {
    transform: translateY(-4px);
    border-color: var(--ai-border-hover);
    background: var(--ai-surface-hover);
    box-shadow: 0 0 24px var(--ai-glow-cyan), 0 8px 24px rgba(0, 0, 0, 0.25);
}

.about-page-material-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-tech-light);
    background: rgba(34, 211, 238, 0.08);
    border: 1px solid rgba(34, 211, 238, 0.18);
    transition:
        background-color var(--transition-normal),
        border-color var(--transition-normal),
        transform var(--transition-normal);
}

.about-page-material-card:hover .about-page-material-card__icon {
    transform: scale(1.05);
    border-color: rgba(34, 211, 238, 0.4);
    background: rgba(34, 211, 238, 0.14);
}

.about-page-material-card__title {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-white);
}

.about-page-material-card__desc {
    margin: 0;
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
    color: rgba(255, 255, 255, 0.62);
}

/* —— Section 2: Our Capabilities —— */
.about-page-capabilities__grid {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: minmax(0, 1fr);
}

.about-page-capabilities__grid > li {
    margin: 0;
    min-width: 0;
    display: flex;
}

.about-page-cap-card {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    background: var(--ai-surface);
    border: 1px solid var(--ai-border-rest);
    box-shadow: 0 0 0 0 transparent;
    transition:
        transform var(--transition-normal),
        border-color var(--transition-normal),
        background-color var(--transition-normal),
        box-shadow var(--transition-slow);
}

.about-page-cap-card:hover {
    transform: translateY(-4px);
    border-color: var(--ai-border-hover);
    background: var(--ai-surface-hover);
    box-shadow: 0 0 24px var(--ai-glow-cyan), 0 8px 24px rgba(0, 0, 0, 0.25);
}

.about-page-cap-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-md);
    color: var(--color-tech-light);
    background: rgba(34, 211, 238, 0.08);
    border: 1px solid rgba(34, 211, 238, 0.18);
    transition:
        background-color var(--transition-normal),
        border-color var(--transition-normal),
        transform var(--transition-normal);
}

.about-page-cap-card:hover .about-page-cap-card__icon {
    transform: scale(1.05);
    border-color: rgba(34, 211, 238, 0.4);
    background: rgba(34, 211, 238, 0.14);
}

.about-page-cap-card__title {
    margin: 0 0 var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
    color: var(--color-white);
}

.about-page-cap-card__desc {
    margin: 0;
    flex: 1;
    font-size: var(--font-size-sm);
    line-height: var(--line-height-base);
    color: rgba(255, 255, 255, 0.62);
}

/* —— Section 3: From Coil To Component —— */
.about-page-timeline {
    list-style: none;
    margin: 0 0 clamp(2rem, 4vw, 2.75rem);
    padding: 0;
    display: grid;
    gap: 0;
    grid-template-columns: minmax(0, 1fr);
    position: relative;
}

.about-page-timeline__item {
    margin: 0;
    position: relative;
    display: grid;
    grid-template-columns: 2rem minmax(0, 1fr);
    gap: var(--spacing-md);
    align-items: start;
    padding-bottom: var(--spacing-lg);
}

.about-page-timeline__item:last-child {
    padding-bottom: 0;
}

.about-page-timeline__item:not(:last-child)::before {
    content: '';
    position: absolute;
    left: 0.95rem;
    top: 2.35rem;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, rgba(34, 211, 238, 0.55) 0%, rgba(34, 211, 238, 0.15) 100%);
}

.about-page-timeline__block {
    display: flex;
    align-items: center;
    min-height: 3.25rem;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    background: var(--ai-surface);
    border: 1px solid var(--ai-border-rest);
    box-shadow: 0 0 0 0 transparent;
    transition:
        transform var(--transition-normal),
        border-color var(--transition-normal),
        background-color var(--transition-normal),
        box-shadow var(--transition-normal);
}

.about-page-timeline__item:hover .about-page-timeline__block {
    transform: translateY(-2px);
    border-color: var(--ai-border-hover);
    background: var(--ai-surface-hover);
    box-shadow: 0 0 20px var(--ai-glow-cyan), 0 6px 20px rgba(0, 0, 0, 0.22);
}

.about-page-timeline__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    color: var(--color-tech-light);
    background: rgba(34, 211, 238, 0.08);
    border: 2px solid rgba(34, 211, 238, 0.35);
    z-index: 1;
}

.about-page-timeline__label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    line-height: 1.4;
    color: var(--color-white);
}

.about-page-workflow__conclusion {
    margin: 0 auto;
    max-width: 52ch;
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: clamp(0.95rem, 1.1vw, 1.05rem);
    line-height: 1.65;
    text-align: center;
    color: rgba(255, 255, 255, 0.88);
    background: rgba(34, 211, 238, 0.06);
    border: 1px solid rgba(34, 211, 238, 0.22);
    border-radius: var(--radius-md);
    box-shadow: 0 0 24px rgba(34, 211, 238, 0.08);
}

@media (min-width: 640px) {
    .about-page-materials__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .about-page-capabilities__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .about-page-timeline {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: var(--spacing-md);
    }

    .about-page-timeline__item {
        grid-template-columns: 1fr;
        padding-bottom: 0;
    }

    .about-page-timeline__item::before {
        display: none;
    }

    .about-page-timeline__block {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
        height: 100%;
        min-height: 7.5rem;
    }

    .about-page-timeline__icon {
        width: 2.5rem;
        height: 2.5rem;
        margin: 0 auto var(--spacing-sm);
        grid-column: 1;
        grid-row: 1;
    }

    .about-page-timeline__item {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
}

@media (min-width: 1024px) {
    .about-page-materials__grid {
        grid-template-columns: repeat(6, minmax(0, 1fr));
    }

    .about-page-materials__grid > li:nth-child(1),
    .about-page-materials__grid > li:nth-child(2),
    .about-page-materials__grid > li:nth-child(3) {
        grid-column: span 2;
    }

    .about-page-materials__grid > li:nth-child(4) {
        grid-column: 2 / span 2;
    }

    .about-page-materials__grid > li:nth-child(5) {
        grid-column: 4 / span 2;
    }

    .about-page-timeline {
        display: flex;
        flex-wrap: nowrap;
        align-items: stretch;
        justify-content: space-between;
        gap: 0.5rem;
    }

    .about-page-timeline__item {
        flex: 1 1 0;
        min-width: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        padding: 0;
    }

    .about-page-timeline__item:not(:last-child)::after {
        content: '';
        position: absolute;
        top: 1.15rem;
        right: -0.35rem;
        width: 0.5rem;
        height: 0.5rem;
        border-top: 2px solid rgba(34, 211, 238, 0.5);
        border-right: 2px solid rgba(34, 211, 238, 0.5);
        transform: rotate(45deg);
        z-index: 2;
    }

    .about-page-timeline__item:not(:last-child)::before {
        display: none;
    }

    .about-page-timeline__icon {
        margin: 0 0 var(--spacing-xs);
    }

    .about-page-timeline__block {
        width: 100%;
        min-height: 5.5rem;
        padding: var(--spacing-sm) 0.35rem;
        align-items: center;
        justify-content: center;
        text-align: center;
    }

    .about-page-timeline__label {
        font-size: 0.72rem;
        letter-spacing: 0.01em;
    }
}

@media (min-width: 1280px) {
    .about-page-materials__grid {
        grid-template-columns: repeat(5, minmax(0, 1fr));
    }

    .about-page-materials__grid > li:nth-child(n) {
        grid-column: auto;
    }

    .about-page-timeline__item {
        max-width: none;
    }

    .about-page-timeline__label {
        font-size: var(--font-size-xs);
    }
}

@media (prefers-reduced-motion: reduce) {
    .about-page-material-card:hover,
    .about-page-cap-card:hover,
    .about-page-timeline__item:hover .about-page-timeline__block,
    .about-page-material-card:hover .about-page-material-card__icon,
    .about-page-cap-card:hover .about-page-cap-card__icon {
        transform: none;
    }
}