/* =============================================
   CASE STUDIES STYLES — Imbatik
   ============================================= */

:root {
    --primary: #2854c2;
    --primary-container: #466edd;
    --on-primary: #ffffff;
    --secondary: #a63934;
    --secondary-container: #ff7b72;
    --tertiary: #006a45;
    --tertiary-fixed: #8cf8c0;
    --on-tertiary-fixed-variant: #005234;
    --surface: #f9f9fc;
    --on-surface: #1a1c1e;
    --on-surface-variant: #434653;
    --outline-variant: #c4c6d5;
    --surface-container: #eeeef0;
    --surface-container-low: #f3f3f6;
    --error: #ba1a1a;
    --error-container: #ffdad6;
    --max-w: 1280px;
}

/* Base resets for templates */
.cases-archive, .single-cases {
    background-color: var(--surface);
    color: var(--on-surface);
    font-family: 'Inter', sans-serif;
}

/* Sections */
.cs-section {
    padding: 80px 24px;
    max-width: var(--max-w);
    margin: 0 auto;
}

.cs-hero {
    text-align: center;
    padding-top: 100px;
    padding-bottom: 60px;
}

.cs-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(40, 84, 194, 0.1);
    color: var(--primary);
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 24px;
}

.cs-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.cs-subtitle {
    font-size: 1.125rem;
    color: var(--on-surface-variant);
    max-width: 700px;
    margin: 0 auto 48px;
    line-height: 1.6;
}

/* Grid & Cards */
.cs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.cs-card {
    background: #fff;
    border-radius: 16px;
    border: 1px solid rgba(196, 198, 213, 0.3);
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.cs-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.cs-card__img-wrap {
    height: 250px;
    overflow: hidden;
    position: relative;
}

.cs-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.cs-card:hover .cs-card__img {
    transform: scale(1.08);
}

.cs-card__tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--tertiary);
    color: #fff;
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.cs-card__body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.cs-card__meta {
    font-size: 14px;
    color: var(--on-surface-variant);
    font-weight: 600;
    margin-bottom: 8px;
}

.cs-card__title {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 12px;
    line-height: 1.3;
}

.cs-card__desc {
    font-size: 16px;
    color: var(--on-surface-variant);
    line-height: 1.5;
    margin-bottom: 24px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cs-card__footer {
    margin-top: auto;
    padding-top: 24px;
    border-top: 1px solid rgba(196, 198, 213, 0.3);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.cs-card__service {
    font-weight: 700;
    color: var(--primary);
}

/* KPI Boxes */
.cs-kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.cs-kpi-card {
    background: var(--surface-container);
    padding: 24px;
    border-radius: 16px;
    text-align: center;
    border-top: 4px solid var(--primary);
}

.cs-kpi-card--primary { border-top-color: var(--primary); }
.cs-kpi-card--secondary { border-top-color: var(--secondary); }
.cs-kpi-card--tertiary { border-top-color: var(--tertiary); }
.cs-kpi-card--warning { border-top-color: var(--secondary-container); }

.cs-kpi-icon {
    font-size: 40px !important;
    margin-bottom: 12px;
}

.cs-kpi-value {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 4px;
}

.cs-kpi-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--on-surface-variant);
}

/* Single Page Specifics */
.cs-single-hero {
    position: relative;
    padding: 100px 24px 80px;
    background: #fff;
    overflow: hidden;
}

.cs-single-hero::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 500px; height: 500px;
    background: rgba(70, 110, 221, 0.08);
    border-radius: 50%;
    filter: blur(100px);
    transform: translate(30%, -30%);
}

.cs-challenge {
    background-color: var(--surface-container-low);
    padding: 80px 24px;
}

.cs-two-cols {
    max-width: var(--max-w);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.cs-points {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 32px;
}

.cs-point {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(186, 26, 26, 0.08);
    color: var(--error);
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
}

.cs-strategy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.cs-strategy-card {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    border-left: 4px solid var(--primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
}

.cs-results-gallery {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
    margin-top: 48px;
}

.cs-gallery-img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid var(--outline-variant);
}

/* Testimonial */
.cs-testimonial {
    background: var(--primary);
    color: #fff;
    padding: 60px;
    border-radius: 24px;
    position: relative;
    overflow: hidden;
    margin: 80px auto;
    max-width: 1000px;
}

.cs-testimonial__quote {
    font-size: 24px;
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 40px;
    position: relative;
    z-index: 2;
}

.cs-testimonial__author {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cs-author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--primary-container);
    display: flex;
    align-items: center;
    justify-content: center;
}

.cs-author-info h4 { margin: 0; font-size: 20px; }
.cs-author-info p { margin: 0; opacity: 0.8; font-size: 14px; text-transform: uppercase; letter-spacing: 0.1em; }

/* Filters */
.cs-filters {
    margin-bottom: 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.cs-filter-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.cs-filter-btn {
    padding: 10px 24px;
    border-radius: 999px;
    background: var(--surface-container-high);
    color: var(--on-surface-variant);
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
}

.cs-filter-btn.active {
    background: var(--primary);
    color: #fff;
}

/* Responsive */
@media (max-width: 1100px) {
    .cs-two-cols { grid-template-columns: 1fr; gap: 48px; }
    .cs-strategy-grid { grid-template-columns: 1fr; }
    .cs-results-gallery { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .cs-grid { grid-template-columns: 1fr; }
    .cs-kpi-grid { grid-template-columns: 1fr 1fr; }
    .cs-filters { flex-direction: column; align-items: stretch; }
}