/* ========================================
   Case Study Page Styles
   ======================================== */

/* --- Hero --- */
.cs-hero {
    padding: 160px 0 80px;
    text-align: center;
}

.cs-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--blue-light);
    margin-bottom: 24px;
}

.cs-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.03em;
    margin-bottom: 20px;
    line-height: 1.15;
}

.cs-hero .hero-sub {
    color: var(--gray-400);
    font-size: 1.1rem;
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

/* --- Company Overview --- */
.cs-overview {
    padding: 0 0 80px;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.overview-item {
    background: var(--navy-card);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-sm);
    padding: 24px 20px;
    text-align: center;
}

.overview-item .label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-500);
    margin-bottom: 8px;
    font-weight: 600;
}

.overview-item .value {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
}

/* --- Content Sections --- */
.cs-section {
    padding: 80px 0;
}

.cs-section:nth-child(even) {
    background: linear-gradient(180deg, transparent, rgba(17, 24, 39, 0.5), transparent);
}

.cs-section-header {
    text-align: center;
    margin-bottom: 48px;
}

.cs-section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.cs-section-header p {
    color: var(--gray-400);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* --- Challenge Cards --- */
.challenge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.challenge-card {
    background: var(--navy-card);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(239, 68, 68, 0.12);
    border-radius: var(--radius);
    padding: 32px 24px;
    position: relative;
}

.challenge-card .card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15), rgba(239, 68, 68, 0.05));
    color: #ef4444;
    font-size: 1.2rem;
}

.challenge-card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}

.challenge-card p {
    font-size: 0.93rem;
    color: var(--gray-400);
    line-height: 1.65;
}

/* --- Solution Cards --- */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.solution-card {
    background: var(--navy-card);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(59, 130, 246, 0.12);
    border-radius: var(--radius);
    padding: 32px 24px;
}

.solution-card .card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(59, 130, 246, 0.05));
    color: var(--blue-light);
    font-size: 1.2rem;
}

.solution-card h3 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}

.solution-card p {
    font-size: 0.93rem;
    color: var(--gray-400);
    line-height: 1.65;
}

/* --- Results Stats --- */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.result-card {
    background: var(--navy-card);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(34, 197, 94, 0.12);
    border-radius: var(--radius);
    padding: 36px 24px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.result-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3), 0 0 40px rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.2);
}

.result-stat {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.4rem);
    font-weight: 800;
    color: var(--green);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.result-card p {
    font-size: 0.93rem;
    color: var(--gray-300);
    line-height: 1.6;
}

/* --- Testimonial --- */
.cs-testimonial {
    padding: 80px 0;
}

.cs-quote {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
}

.cs-quote .quote-mark {
    font-size: 6rem;
    font-family: Georgia, serif;
    background: linear-gradient(135deg, var(--blue-light), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 0.5;
    display: block;
    margin-bottom: 16px;
}

.cs-quote blockquote p {
    font-size: 1.25rem;
    color: var(--gray-300);
    line-height: 1.7;
    font-style: italic;
}

.cs-quote cite {
    display: block;
    margin-top: 24px;
    font-size: 0.95rem;
    color: var(--gray-500);
    font-style: normal;
    font-weight: 600;
}

/* --- CTA --- */
.cs-cta {
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(6, 182, 212, 0.05));
}

.cs-cta h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
}

.cs-cta p {
    color: var(--gray-400);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .cs-hero { padding: 120px 0 60px; }
    .cs-section { padding: 60px 0; }
    .overview-grid { grid-template-columns: repeat(2, 1fr); }
    .challenge-grid, .solution-grid { grid-template-columns: 1fr; }
    .results-grid { grid-template-columns: repeat(2, 1fr); }
    .cs-testimonial { padding: 60px 0; }
    .cs-cta { padding: 60px 0; }
}

@media (max-width: 480px) {
    .overview-grid { grid-template-columns: 1fr; }
    .results-grid { grid-template-columns: 1fr; }
}