/* Placeholder page shell — mirrors /about/culture/ visual system.
   Used by /about/commitment/, /intelligence/case-studies/, /intelligence/docs/.
   Per-page hero background image is passed via the --placeholder-hero-bg
   custom property on the .placeholder-hero element. */

/* ==========================================================================
   Hero
   ========================================================================== */

.placeholder-hero {
    background: #FFFFFF;
    min-height: auto;
    padding: calc(var(--header-height, 75px) + 1.75rem) 0 3rem;
    position: relative;
    overflow: hidden;
}

.placeholder-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: var(--placeholder-hero-bg, url('/assets/images/labs-homepage.webp'));
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0.25;
    z-index: 0;
}

.placeholder-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.10) 50%,
        rgba(255, 255, 255, 0.15) 100%);
    z-index: 1;
}

.placeholder-hero .container {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 0 3rem;
    position: relative;
    z-index: 2;
}

.placeholder-hero__content {
    max-width: 760px;
}

.placeholder-hero__coming-soon {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(234, 88, 12, 0.1);
    color: #C2410C;
    font-family: var(--font-primary, 'Plus Jakarta Sans', system-ui, sans-serif);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    border-radius: 999px;
    margin-bottom: 24px;
}

.placeholder-hero__eyebrow {
    color: var(--neural-orange, #d97706);
    font-family: var(--font-primary, 'Plus Jakarta Sans', system-ui, sans-serif);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    display: block;
    margin: 0 0 20px;
}

.placeholder-hero__title {
    font-family: var(--font-primary, 'Plus Jakarta Sans', system-ui, sans-serif);
    color: #111827;
    font-size: clamp(2.5rem, 5.4vw, 3.875rem);
    font-weight: 200;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin: 0 0 24px;
    position: relative;
    padding-bottom: 20px;
}

.placeholder-hero__title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(135deg, var(--neural-purple, #3c1361), var(--neural-orange, #d97706));
}

.placeholder-hero__lede {
    color: #4B5563;
    font-family: var(--font-primary, 'Plus Jakarta Sans', system-ui, sans-serif);
    font-size: clamp(1rem, 1.4vw, 1.125rem);
    line-height: 1.7;
    margin: 0;
    font-weight: 400;
}

/* ==========================================================================
   Content section — gradient top border, white bg, sticky-title 2-col layout
   ========================================================================== */

.placeholder-section {
    background: #FFFFFF;
    padding: 88px 0;
    border-top: 3px solid transparent;
    border-image: var(--neural-gradient-border, linear-gradient(90deg, #FF966C 0%, #D97706 25%, #3c1361 75%, #6E56CF 100%)) 1;
}

.placeholder-section__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
}

.placeholder-section__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
}

@media (min-width: 768px) {
    .placeholder-section__grid {
        grid-template-columns: minmax(220px, 0.55fr) minmax(0, 1fr);
        gap: clamp(48px, 6vw, 80px);
        align-items: start;
    }
}

.placeholder-section__title {
    font-family: var(--font-primary, 'Plus Jakarta Sans', system-ui, sans-serif);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 300;
    line-height: 1.2;
    color: #111827;
    letter-spacing: -0.01em;
    margin: 0 0 1rem;
    position: relative;
    display: inline-block;
}

.placeholder-section__title::after {
    content: '';
    display: block;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--neural-purple, #3c1361), var(--neural-orange, #d97706));
    margin-top: 0.875rem;
}

.placeholder-section__body p {
    color: #4B5563;
    line-height: 1.7;
    margin: 0 0 16px;
    max-width: 720px;
    font-size: 1.0625rem;
    font-family: var(--font-primary, 'Plus Jakarta Sans', system-ui, sans-serif);
}

.placeholder-section__body p:last-child {
    margin-bottom: 0;
}

.placeholder-section__body a {
    color: var(--neural-purple, #3c1361);
    text-decoration: underline;
    text-decoration-color: rgba(60, 19, 97, 0.3);
    text-underline-offset: 2px;
    transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.placeholder-section__body a:hover {
    color: var(--neural-orange, #d97706);
    text-decoration-color: rgba(217, 119, 6, 0.6);
}

/* ==========================================================================
   CTA section — same rhythm, centered, dark pill button
   ========================================================================== */

.placeholder-cta {
    background: #FFFFFF;
    padding: 88px 0;
    text-align: center;
    border-top: 3px solid transparent;
    border-image: var(--neural-gradient-border, linear-gradient(90deg, #FF966C 0%, #D97706 25%, #3c1361 75%, #6E56CF 100%)) 1;
}

.placeholder-cta__container {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 3rem;
}

.placeholder-cta__title {
    font-family: var(--font-primary, 'Plus Jakarta Sans', system-ui, sans-serif);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 300;
    line-height: 1.2;
    margin: 0 0 12px;
    color: #111827;
    letter-spacing: -0.01em;
}

.placeholder-cta__lede {
    color: #6B7280;
    margin: 0 0 32px;
    font-size: 1.0625rem;
    line-height: 1.7;
    font-family: var(--font-primary, 'Plus Jakarta Sans', system-ui, sans-serif);
}

.placeholder-cta__button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: #111827;
    color: #FFFFFF;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 500;
    font-family: var(--font-primary, 'Plus Jakarta Sans', system-ui, sans-serif);
    font-size: 0.9375rem;
    transition: background 0.2s ease, transform 0.2s ease;
}

.placeholder-cta__button:hover {
    background: var(--neural-purple, #3C1361);
    transform: translateY(-1px);
}

/* ==========================================================================
   Mobile
   ========================================================================== */

@media (max-width: 768px) {
    .placeholder-hero {
        padding: calc(var(--header-height-mobile, 60px) + 2rem) 0 2.25rem;
    }
    .placeholder-hero .container {
        padding: 0 1.5rem;
    }
    .placeholder-hero__title {
        font-size: clamp(1.875rem, 7.6vw, 2.4rem);
        margin-bottom: 20px;
    }
    .placeholder-hero__lede {
        font-size: 1rem;
    }
    .placeholder-hero__eyebrow {
        font-size: 12px;
        margin-bottom: 16px;
    }
    .placeholder-section,
    .placeholder-cta {
        padding: 60px 0;
    }
    .placeholder-section__container,
    .placeholder-cta__container {
        padding: 0 1.5rem;
    }
}