/* ============================================
   VOID CASE STUDY — Styles
   ============================================ */

/* Back button (small) */
.btn--sm {
    font-size: 0.75rem;
    padding: 0.4rem 1rem;
}

/* === CASE HERO === */
.case-hero {
    position: relative;
    padding: 8rem 0 5rem;
    overflow: hidden;
}
.case-hero-bg {
    position: absolute; inset: 0; pointer-events: none;
}
.case-hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.case-hero-content { position: relative; }
.case-hero-title {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 10vw, 6rem);
    font-weight: 700;
    letter-spacing: -0.06em;
    line-height: 0.9;
    margin-bottom: 0.8rem;
    background: linear-gradient(135deg, var(--text), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.case-hero-tagline {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    color: var(--text-soft);
    font-style: italic;
    margin-bottom: 2.5rem;
}
.case-hero-image img {
    width: 100%;
    max-width: 400px;
    border-radius: 20px;
    margin: 0 auto;
    filter: drop-shadow(0 20px 60px rgba(155, 122, 228, 0.15));
}

/* Meta pills */
.case-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}
.case-meta-item {
    padding: 0.6rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-raised);
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    font-family: var(--font-display);
    font-size: 0.82rem;
    font-weight: 500;
}
.case-meta-label {
    font-family: var(--font-label);
    font-size: 0.55rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-dim);
}
.case-status-live {
    color: #4ade80;
}

/* === CASE SECTIONS === */
.case-section {
    padding: 5rem 0;
}
.case-section--alt {
    background: linear-gradient(180deg, var(--bg-raised), var(--bg));
}

.case-block {
    max-width: 680px;
    margin-bottom: 3rem;
}
.case-block--centered {
    max-width: 680px;
    margin: 0 auto;
    text-align: center;
}
.case-block--centered .label { justify-content: center; }

.case-heading {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.case-block p {
    color: var(--text-soft);
    font-size: 0.95rem;
    line-height: 1.85;
    margin-bottom: 1rem;
}
.case-block p strong {
    color: var(--text);
    font-weight: 600;
}

/* === PRINCIPLES GRID === */
.case-principles {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.case-principle {
    padding: 1.8rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    transition: all 0.4s var(--ease);
}
.case-principle:hover {
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}
.case-principle h3 {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}
.case-principle p {
    color: var(--text-soft);
    font-size: 0.85rem;
    line-height: 1.7;
}

/* === FEATURES GRID === */
.case-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.case-feature {
    padding: 1.8rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--bg-raised);
    transition: all 0.4s var(--ease);
}
.case-feature:hover {
    border-color: var(--border-hover);
}
.case-feature-num {
    font-family: var(--font-label);
    font-size: 0.58rem;
    color: var(--text-dim);
    letter-spacing: 0.1em;
    margin-bottom: 0.8rem;
}
.case-feature h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    letter-spacing: -0.02em;
}
.case-feature p {
    color: var(--text-soft);
    font-size: 0.85rem;
    line-height: 1.7;
}

/* === BRAND GRID === */
.case-brand-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 2rem;
}
.case-brand-card {
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--bg-card);
    text-align: center;
}
.case-brand-swatch {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 8px;
    margin-bottom: 0.6rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}
.case-brand-card span {
    display: block;
    font-family: var(--font-display);
    font-size: 0.78rem;
    font-weight: 500;
    margin-bottom: 0.15rem;
}
.case-brand-card code {
    font-family: var(--font-label);
    font-size: 0.6rem;
    color: var(--text-dim);
    letter-spacing: 0.04em;
}

/* === CHALLENGES === */
.case-challenges {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}
.case-challenge {
    padding: 1.8rem;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--bg-raised);
    border-left: 2px solid var(--accent);
    transition: all 0.4s var(--ease);
}
.case-challenge:hover {
    border-color: var(--border-hover);
    border-left-color: var(--accent);
    transform: translateY(-2px);
}
.case-challenge h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}
.case-challenge p {
    color: var(--text-soft);
    font-size: 0.85rem;
    line-height: 1.7;
}

/* === CTA === */
.case-cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 2rem;
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
    .case-hero .container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        text-align: center;
    }
    .case-hero-image img {
        max-width: 280px;
    }
    .case-meta { justify-content: center; }
    .case-principles,
    .case-features,
    .case-challenges {
        grid-template-columns: 1fr;
    }
    .case-brand-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .case-hero { padding: 6rem 0 3rem; }
    .case-hero-title { font-size: 3rem; }
    .case-section { padding: 3.5rem 0; }
}