/* Case Study Pages — cases.css */
/* BEM naming: .case-study__ prefix */

/* ============================================================
   Layout & wrapper
   ============================================================ */
.case-study__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================================
   Hero Section — centered like Figma
   ============================================================ */
.case-study__hero {
    background: #fff;
    padding: 40px 0 48px;
    text-align: center;
}

.case-study__breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    font-size: 0.875rem;
    color: #6b7280;
    flex-wrap: wrap;
}

.case-study__breadcrumb a {
    color: #6b7280;
    text-decoration: none;
    transition: color 0.2s;
}

.case-study__breadcrumb a:hover {
    color: #2563EB;
}

.case-study__breadcrumb-sep {
    color: #d1d5db;
    font-size: 0.75rem;
}

.case-study__breadcrumb-current {
    color: #374151;
    font-weight: 500;
}

.case-study__hero-title {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: clamp(2rem, 4vw, 3.25rem);
    font-weight: 800;
    line-height: 1.18;
    color: #0B2A60;
    max-width: 860px;
    margin: 0 auto 24px;
}

.case-study__hero-desc {
    font-size: 1rem;
    line-height: 1.7;
    color: #4b5563;
    max-width: 720px;
    margin: 0 auto 28px;
}

.case-study__tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.case-study__tag {
    display: inline-flex;
    align-items: center;
    padding: 6px 18px;
    border: 1.5px solid #d1d5db;
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #374151;
    background: transparent;
    letter-spacing: 0.01em;
}

/* ============================================================
   Section Base
   ============================================================ */
.case-study__section {
    padding: 64px 0;
}

.case-study__section--gray {
    background: #f8fafc;
}

.case-study__section--white {
    background: #fff;
}

/* ============================================================
   Why it Matters — 2-column
   ============================================================ */
.case-study__why-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 48px 64px;
    align-items: start;
}

.case-study__why-heading {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 800;
    line-height: 1.15;
    color: #0B2A60;
    position: sticky;
    top: 80px;
}

.case-study__why-body p {
    font-size: 1rem;
    line-height: 1.75;
    color: #374151;
    margin: 0 0 20px;
}

.case-study__why-body p:last-child {
    margin-bottom: 0;
}

/* ============================================================
   Section Heading
   ============================================================ */
.case-study__section-title {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: clamp(1.5rem, 2.5vw, 2.25rem);
    font-weight: 800;
    color: #0B2A60;
    margin: 0 0 12px;
}

.case-study__section-intro {
    font-size: 1rem;
    line-height: 1.7;
    color: #4b5563;
    max-width: 720px;
    margin: 0 0 36px;
}

/* ============================================================
   Challenges — 4-card grid with ROUND icon backgrounds
   ============================================================ */
.case-study__challenges-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 36px;
}

.case-study__card {
    background: #fff;
    border-radius: 12px;
    padding: 28px 24px;
    box-shadow: 0 2px 12px rgba(11, 42, 96, 0.07);
    border: 1px solid #e5eaf3;
}

.case-study__card-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    flex-shrink: 0;
}

.case-study__card-icon svg {
    width: 22px;
    height: 22px;
    color: #2563EB;
}

.case-study__card-title {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: 0.9375rem;
    font-weight: 700;
    color: #0B2A60;
    margin: 0 0 10px;
}

.case-study__card-text {
    font-size: 0.875rem;
    line-height: 1.65;
    color: #4b5563;
    margin: 0;
}

/* Quote/callout block */
.case-study__callout {
    background: #eff6ff;
    border-left: 4px solid #2563EB;
    border-radius: 0 10px 10px 0;
    padding: 24px 28px;
    font-size: 1.125rem;
    line-height: 1.65;
    color: #1e3a6e;
    font-weight: 500;
}

/* ============================================================
   Proactive Control Section
   ============================================================ */
.case-study__proactive-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px 56px;
    align-items: start;
    margin-bottom: 40px;
}

.case-study__proactive-text p {
    font-size: 1rem;
    line-height: 1.75;
    color: #374151;
    margin: 0 0 20px;
}

.case-study__network-logos {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 20px 0 24px;
    flex-wrap: wrap;
}

.case-study__network-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 0.875rem;
    letter-spacing: 0.02em;
}

.case-study__network-logo--mastercard {
    color: #1a1a1a;
}

.case-study__network-logo--mastercard .mc-circles {
    display: inline-flex;
    position: relative;
    width: 28px;
    height: 18px;
}
.case-study__network-logo--mastercard .mc-circle-red {
    position: absolute;
    left: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #EB001B;
}
.case-study__network-logo--mastercard .mc-circle-yellow {
    position: absolute;
    right: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #F79E1B;
    opacity: 0.85;
}

.case-study__network-logo--visa {
    color: #1A1F71;
    font-size: 1.1rem;
    font-weight: 800;
    font-style: italic;
    letter-spacing: 0.05em;
}

.case-study__alert-desc {
    font-size: 1rem;
    line-height: 1.75;
    color: #374151;
    margin: 0 0 32px;
    max-width: 820px;
}

/* Flow steps — icons + subtitles */
.case-study__flow-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    position: relative;
}

.case-study__flow-step {
    background: #fff;
    border-radius: 12px;
    padding: 28px 20px 24px;
    border: 1px solid #e5eaf3;
    box-shadow: 0 2px 8px rgba(11, 42, 96, 0.05);
    text-align: center;
    position: relative;
}

.case-study__flow-step::after {
    content: '';
    position: absolute;
    right: -12px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-top: 2px solid #2563EB;
    border-right: 2px solid #2563EB;
    transform: translateY(-50%) rotate(45deg);
    z-index: 1;
}

.case-study__flow-step:last-child::after {
    display: none;
}

.case-study__flow-step-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
}

.case-study__flow-step-icon svg {
    width: 22px;
    height: 22px;
    color: #2563EB;
}

.case-study__flow-step-title {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: 0.9375rem;
    font-weight: 700;
    color: #0B2A60;
    margin: 0 0 6px;
}

.case-study__flow-step-subtitle {
    font-size: 0.8125rem;
    line-height: 1.5;
    color: #6b7280;
    margin: 0;
}

/* ============================================================
   Key Components — 2-column
   ============================================================ */
.case-study__components-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.case-study__component-card {
    background: #fff;
    border-radius: 12px;
    padding: 28px 24px;
    border: 1px solid #e5eaf3;
    box-shadow: 0 2px 12px rgba(11, 42, 96, 0.06);
}

.case-study__component-title {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: #0B2A60;
    margin: 0 0 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.case-study__component-title-icon {
    width: 36px;
    height: 36px;
    background: #eff6ff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.case-study__component-title-icon svg {
    width: 18px;
    height: 18px;
    color: #2563EB;
}

.case-study__component-text {
    font-size: 0.9rem;
    line-height: 1.65;
    color: #4b5563;
    margin: 0 0 10px;
}

.case-study__component-benefit {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-top: 12px;
    padding: 10px 14px;
    background: #f0fdf4;
    border-radius: 6px;
    font-size: 0.84rem;
    color: #166534;
    font-weight: 500;
}

.case-study__component-benefit svg {
    width: 16px;
    height: 16px;
    color: #16a34a;
    flex-shrink: 0;
    margin-top: 1px;
}

/* ============================================================
   Implementation — 5 HORIZONTAL COLUMNS (matches Figma)
   ============================================================ */
.case-study__steps-horizontal {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.case-study__step-h {
    text-align: left;
}

.case-study__step-h-num {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: 3rem;
    font-weight: 800;
    color: #2563EB;
    line-height: 1;
    margin-bottom: 16px;
}

.case-study__step-h-title {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: 0.9375rem;
    font-weight: 700;
    color: #0B2A60;
    margin: 0 0 10px;
}

.case-study__step-h-text {
    font-size: 0.8125rem;
    line-height: 1.6;
    color: #4b5563;
    margin: 0;
}

/* ============================================================
   Results
   ============================================================ */
.case-study__results-grid {
    display: grid;
    grid-template-columns: auto 1fr 1fr;
    gap: 20px;
    align-items: start;
}

.case-study__result-stat {
    background: linear-gradient(135deg, #2563EB 0%, #1d4ed8 100%);
    border-radius: 14px;
    padding: 36px 32px;
    text-align: center;
    color: #fff;
    min-width: 180px;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.case-study__result-stat-number {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 8px;
}

.case-study__result-stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 600;
}

.case-study__result-items {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.case-study__result-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: #fff;
    border-radius: 10px;
    padding: 20px;
    border: 1px solid #e5eaf3;
    box-shadow: 0 2px 8px rgba(11, 42, 96, 0.05);
}

.case-study__result-icon {
    width: 40px;
    height: 40px;
    background: #eff6ff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.case-study__result-icon svg {
    width: 20px;
    height: 20px;
    color: #2563EB;
}

.case-study__result-title {
    font-size: 0.9375rem;
    font-weight: 700;
    color: #0B2A60;
    margin: 0 0 4px;
}

.case-study__result-text {
    font-size: 0.875rem;
    line-height: 1.6;
    color: #4b5563;
    margin: 0;
}

/* ============================================================
   Key Takeaways — 5-card row
   ============================================================ */
.case-study__takeaways-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.case-study__takeaway-card {
    background: #fff;
    border-radius: 10px;
    padding: 22px 18px;
    border: 1px solid #e5eaf3;
    box-shadow: 0 2px 8px rgba(11, 42, 96, 0.05);
    text-align: center;
}

.case-study__takeaway-num {
    width: 28px;
    height: 28px;
    background: #eff6ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    color: #2563EB;
    margin: 0 auto 12px;
}

.case-study__takeaway-text {
    font-size: 0.875rem;
    line-height: 1.6;
    color: #374151;
    margin: 0;
}

/* ============================================================
   Summary Quote
   ============================================================ */
.case-study__summary-quote {
    text-align: center;
    padding: 48px 0 0;
}

.case-study__summary-text {
    font-size: 1.25rem;
    line-height: 1.65;
    color: #1e293b;
    font-weight: 500;
    max-width: 780px;
    margin: 0 auto;
}

/* ============================================================
   CTA Section — white/clean like Figma
   ============================================================ */
.case-study__cta-section {
    background: #fff;
    padding: 56px 0 64px;
    text-align: center;
}

.case-study__cta-headline {
    font-family: 'Manrope Bold', 'Manrope', sans-serif;
    font-size: clamp(1.5rem, 2.5vw, 2.25rem);
    font-weight: 800;
    color: #0B2A60;
    margin: 0 0 28px;
    line-height: 1.3;
}

.case-study__cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #2563EB;
    color: #fff;
    text-decoration: none;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    transition: background 0.2s, transform 0.15s;
}

.case-study__cta-btn:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
    color: #fff;
    text-decoration: none;
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
    .case-study__challenges-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .case-study__flow-step::after {
        display: none;
    }

    .case-study__takeaways-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .case-study__results-grid {
        grid-template-columns: 1fr 1fr;
    }

    .case-study__result-stat {
        grid-column: 1 / -1;
        min-width: unset;
    }

    .case-study__why-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .case-study__why-heading {
        position: static;
    }

    .case-study__steps-horizontal {
        grid-template-columns: repeat(3, 1fr);
    }

    .case-study__proactive-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .case-study__hero {
        padding: 36px 0 32px;
    }

    .case-study__section {
        padding: 44px 0;
    }

    .case-study__challenges-grid {
        grid-template-columns: 1fr;
    }

    .case-study__flow-steps {
        grid-template-columns: 1fr 1fr;
    }

    .case-study__components-grid {
        grid-template-columns: 1fr;
    }

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

    .case-study__step-h-num {
        font-size: 2.25rem;
    }

    .case-study__results-grid {
        grid-template-columns: 1fr;
    }

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

    .case-study__container {
        padding: 0 16px;
    }
}

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

    .case-study__flow-steps {
        grid-template-columns: 1fr;
    }

    .case-study__steps-horizontal {
        grid-template-columns: 1fr;
    }

    .case-study__result-stat-number {
        font-size: 2.75rem;
    }
}