/* ==========================================================================
   STORY — About page editorial section
   Positioned immediately after the About hero.

   Typography, spacing tokens, .du-container and .du-sr-only are already
   handled by the global stylesheets — this file only defines:
     1. The two-column layout grid
     2. The image proportions + border-radius
     3. The reveal animation (matching the pattern from _assessment-engine.css
        and _hero-stats.css: opacity + translateY, triggered by JS class)
     4. Responsive stack behaviour

   Deliberately minimal. Everything re-using an existing token or utility
   class has no rule here.
   ========================================================================== */

/* ---- Section ---- */
.du-story {
    background-color: var(--surface);
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
}

/* ---- Two-column grid ----
   Measured from the design: image col ~35% of canvas, text col ~43%,
   gap ~8%. Translated to CSS: equal 1fr columns with a generous gap
   preserves the editorial breathing room without hardcoding pixel widths.
   align-items: start keeps the image top-aligned with the eyebrow text
   (not centred), exactly as shown in the design.
   ========================================================================== */
.du-story__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: var(--space-xl);
    align-items: center;
}

/* ---- Reveal animation — same pattern as .du-assessment-card ---- */
.du-story__media,
.du-story__content {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.du-story__media.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.du-story__content.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 100ms; /* stagger: content reveals just after image */
}

@media (prefers-reduced-motion: reduce) {
    .du-story__media,
    .du-story__content {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ---- Image ----
   Design shows a portrait-oriented photo, ratio ≈ 3:4 (measured: 0.73).
   aspect-ratio locks this without needing a fixed height.
   border-radius matches --radius-lg (16px) — the same radius used on
   primary cards and the about hero's image.
   No box-shadow: the image sits directly on --background with no elevation.
   ========================================================================== */
.du-story__image {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

/* ---- Text column ---- */
.du-story__eyebrow {
    color: var(--surface-tint);
    margin: 0 0 var(--space-sm);
    display: block;
}

.du-story__heading {
    margin: 0 0 var(--space-lg);
}

.du-story__body {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.du-story__paragraph {
    color: var(--on-surface-variant);
    margin: 0;
    max-width: 58ch;
}

/* ==========================================================================
   TABLET — 768px to 1024px
   Maintain the two-column layout but compress proportions slightly.
   ========================================================================== */
@media (min-width: 768px) and (max-width: 1024px) {
    .du-story__inner {
        gap: var(--space-lg);
    }

    .du-story__paragraph {
        max-width: none;
    }
}

/* ==========================================================================
   MOBILE — < 768px
   Stack vertically: image first (maintains visual hierarchy), text below.
   Generous whitespace preserves the editorial reading experience.
   ========================================================================== */
@media (max-width: 767px) {
    .du-story {
        padding-top: var(--space-lg);
        padding-bottom: var(--space-lg);
    }

    .du-story__inner {
        grid-template-columns: minmax(0, 1fr);
        gap: var(--space-lg);
    }

    .du-story__image {
        aspect-ratio: 4 / 3; /* wider on mobile — less dominant, more contextual */
        border-radius: var(--radius-md);
    }

    .du-story__paragraph {
        max-width: none;
    }
}