/* ============================================
   CASE STUDY PAGES — Soft Brutalist
   ============================================ */

.case-study {
    max-width: 900px;
    margin: 0 auto;
    padding: 8rem 3rem 4rem;
}

.case-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 3rem;
    transition: color 0.2s;
}

.case-back:hover {
    color: var(--fg);
}

.case-back::before {
    content: "\2190";
    font-size: 1rem;
}

.case-header {
    margin-bottom: 4rem;
}

.case-header h1 {
    font-family: var(--font-mono);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -0.03em;
    color: var(--fg);
}

.case-tagline {
    font-size: 1.15rem;
    color: var(--muted);
    line-height: 1.7;
    max-width: 700px;
    margin-bottom: 2rem;
}

.case-meta {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.case-meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.case-meta-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
}

.case-meta-value {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--fg);
}

/* Sections */
.case-section {
    margin-bottom: 4rem;
}

.case-section-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--muted);
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

.case-section h2 {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.case-section p {
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

/* Process Steps */
.process-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.process-step {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.step-num {
    width: 36px;
    height: 36px;
    border-radius: 0;
    background: var(--fg);
    color: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.step-content p {
    color: var(--muted);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0;
}

/* Iteration Cards */
.iteration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.25rem;
}

.iteration-card {
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform 0.2s;
}

.iteration-card:hover {
    transform: translateY(-2px);
}

.iteration-card.rejected {
    opacity: 0.6;
    position: relative;
}

.iteration-card.rejected::after {
    content: "EXPLORED";
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--muted);
    border: 1px solid var(--border);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius);
}

.iteration-card.chosen {
    border-color: var(--accent);
    background: var(--accent-light);
    position: relative;
}

.iteration-card.chosen::after {
    content: "FINAL";
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--accent);
    border: 1px solid rgba(255,230,0,0.3);
    background: rgba(255,230,0,0.1);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius);
}

.iteration-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.iteration-card p {
    color: var(--muted);
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 0;
}

/* Color Swatches */
.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.color-swatch {
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
}

.swatch-block {
    height: 80px;
}

.swatch-info {
    padding: 0.75rem;
    background: var(--bg);
}

.swatch-name {
    font-size: 0.8rem;
    font-weight: 700;
    margin-bottom: 0.15rem;
}

.swatch-hex {
    font-size: 0.7rem;
    color: var(--muted);
    font-family: 'Space Mono', monospace;
}

/* Typography Showcase */
.type-showcase {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.type-specimen {
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.type-specimen-name {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.75rem;
}

.type-specimen-sample {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--fg);
}

/* Decision callouts */
.decision-box {
    padding: 1.5rem;
    background: var(--accent-light);
    border-left: 3px solid var(--accent);
    border-radius: 0 var(--radius) var(--radius) 0;
    margin: 1.5rem 0;
}

.decision-box p {
    color: var(--fg);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.decision-box strong {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--fg);
    margin-bottom: 0.5rem;
}

/* Placeholder state for in-progress projects */
.placeholder-banner {
    padding: 2rem;
    background: var(--card-bg);
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    text-align: center;
    margin: 2rem 0;
}

.placeholder-banner h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--fg);
}

.placeholder-banner p {
    color: var(--muted);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* Role tags */
.role-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.role-tag {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.3rem 0.65rem;
    border-radius: var(--radius);
    letter-spacing: 0.03em;
}

.role-tag.yulia {
    background: rgba(255,230,0,0.1);
    color: #996600;
    border: 1px solid rgba(255,230,0,0.2);
}

.role-tag.brad {
    background: rgba(0,0,0,0.05);
    color: var(--fg);
    border: 1px solid var(--border);
}

.role-tag.oleg {
    background: rgba(245,158,11,0.1);
    color: #B45309;
    border: 1px solid rgba(245,158,11,0.2);
}

/* ============================================
   VISUAL-FIRST ADDITIONS
   ============================================ */

/* Logo iteration cards — visual variant */
.iteration-grid--visual {
    grid-template-columns: repeat(2, 1fr);
}

.card-visual {
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.card-visual svg {
    width: 100%;
    max-width: 200px;
    height: auto;
}

.iteration-card.chosen .card-visual svg {
    max-width: 240px;
}

/* Color direction comparison */
.color-direction-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.5rem;
}

.color-direction-block {
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
}

.color-direction--rejected .color-direction-block {
    opacity: 0.7;
}

.color-direction-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 0.75rem;
    line-height: 1.5;
}

.color-direction-verdict {
    font-weight: 400;
    color: var(--muted);
    font-size: 0.75rem;
}

/* Contrast check visual */
.contrast-check {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
}

.contrast-check-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--muted);
    margin-bottom: 1rem;
}

.contrast-pair-row {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.contrast-pair {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.contrast-sample {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.contrast-result {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.contrast-x {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: #FF2D00;
    letter-spacing: 0.05em;
}

.contrast-check-mark {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    color: #16a34a;
    letter-spacing: 0.05em;
}

.contrast-ratio {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--muted);
}

/* Typography — large specimens */
.type-showcase--visual {
    gap: 0;
}

.type-specimen--hero {
    padding: 2.5rem 2rem;
}

.type-specimen-large {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--fg);
    letter-spacing: -0.03em;
}

.type-specimen-body {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    line-height: 1.4;
    color: var(--muted);
}

/* Design principles grid */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.principle-card {
    padding: 1.5rem;
    background: var(--card-bg);
    border: 2px solid var(--fg);
    border-radius: 0;
}

.principle-card h3 {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.principle-card p {
    color: var(--muted);
    font-size: 0.85rem;
    line-height: 1.5;
    margin: 0;
}

/* Deliverables grid */
.deliverables-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.deliverable-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--border);
}

.deliverable-name {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
}

.deliverable-badge {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: #16a34a;
    background: rgba(22, 163, 74, 0.08);
    border: 1px solid rgba(22, 163, 74, 0.2);
    padding: 0.15rem 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .case-study {
        padding: 7rem 1.5rem 3rem;
    }

    .case-meta {
        gap: 1.5rem;
    }

    .iteration-grid,
    .iteration-grid--visual {
        grid-template-columns: 1fr;
    }

    .color-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .principles-grid {
        grid-template-columns: 1fr;
    }

    .deliverables-grid {
        grid-template-columns: 1fr;
    }

    .process-step {
        gap: 1rem;
    }

    .contrast-pair-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}