/* Case Study Plugin - Frontend Styles */
/* All classes prefixed with cs- to avoid conflicts */

/* ================= CSS VARIABLES ================= */
:root {
    --cs-primary: #0EA5E9;
    --cs-primary-light: #38BDF8;
    --cs-secondary: #8B5CF6;
    --cs-accent: #06B6D4;
    --cs-text: #0C1733;
    --cs-text-body: #5A678A;
    --cs-text-muted: #8792B3;
    --cs-bg-card: #ffffff;
    --cs-bg-metric: #EFF3FA;
    --cs-border: rgba(15, 23, 42, 0.08);
    --cs-shadow: 0 10px 30px -26px rgba(12, 23, 51, 0.18);
    --cs-shadow-hover: 0 24px 48px -20px rgba(124, 92, 252, 0.25);
    --cs-radius-card: 18px;
    --cs-radius-pill: 100px;
    --cs-transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --cs-font: 'Sora', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --cs-font-mono: 'JetBrains Mono', monospace;
}

/* ================= SECTION HEADING ================= */
.cs-section-heading {
    text-align: center;
    margin-bottom: 50px;
}

.cs-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--cs-font-mono);
    font-size: 11.5px;
    font-weight: 500;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: var(--cs-primary);
    padding: 8px 16px;
    border-radius: var(--cs-radius-pill);
    border: 1px solid rgba(56, 189, 248, .28);
    background: rgba(56, 189, 248, .07);
    margin-bottom: 22px;
}

.cs-eyebrow-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--cs-accent);
    box-shadow: 0 0 12px var(--cs-accent);
}

.cs-heading-title {
    font-family: var(--cs-font);
    font-size: clamp(26px, 3.5vw, 42px);
    font-weight: 700;
    color: var(--cs-text);
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 18px;
}

.cs-heading-desc {
    font-size: 16px;
    color: var(--cs-text-body);
    line-height: 1.7;
    max-width: 640px;
    margin: 0 auto;
}

/* ================= GRID ================= */
.cs-grid {
    display: grid;
    gap: 22px;
}

.cs-grid--cols-1 { grid-template-columns: 1fr; }
.cs-grid--cols-2 { grid-template-columns: repeat(2, 1fr); }
.cs-grid--cols-3 { grid-template-columns: repeat(3, 1fr); }
.cs-grid--cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Elementor responsive override classes */
.cs-grid--tablet-2 .cs-card,
.cs-grid--tablet-1 .cs-card,
.cs-grid--mobile-1 .cs-card {
    grid-column: span 1;
}

.cs-grid--empty {
    text-align: center;
    padding: 60px 20px;
}

.cs-grid__empty {
    font-size: 16px;
    color: var(--cs-text-muted);
}

/* ================= CARD ================= */
.cs-card {
    border: 1px solid var(--cs-border);
    border-radius: var(--cs-radius-card);
    overflow: hidden;
    background: var(--cs-bg-card);
    display: flex;
    flex-direction: column;
    box-shadow: var(--cs-shadow);
    transition: transform var(--cs-transition), border-color var(--cs-transition), box-shadow var(--cs-transition);
    min-width: 0; /* Prevent grid blowout */
    -webkit-tap-highlight-color: transparent;
}

/* Disable hover lift on touch devices */
@media (hover: none) {
    .cs-card:hover {
        transform: none;
        border-color: var(--cs-border);
        box-shadow: var(--cs-shadow);
    }
}

@media (hover: hover) {
    .cs-card:hover {
        transform: translateY(-6px);
        border-color: rgba(124, 92, 252, .5);
        box-shadow: var(--cs-shadow-hover);
    }

    .cs-card:hover .cs-card__link svg {
        transform: translateX(4px);
    }

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

    .cs-card:hover .cs-card__cover::after {
        opacity: 1;
    }
}

/* Cover */
.cs-card__cover {
    position: relative;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--cs-accent), #4F8CFF);
    isolation: isolate;
}

.cs-card__cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, .18), rgba(14, 165, 233, .18));
    opacity: 0;
    transition: opacity var(--cs-transition);
    z-index: 0;
}

.cs-card__category {
    position: absolute;
    top: 16px;
    left: 16px;
    font-family: var(--cs-font-mono);
    font-size: 10px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: #fff;
    background: rgba(5, 7, 15, .55);
    border: 1px solid rgba(255, 255, 255, .25);
    padding: 5px 11px;
    border-radius: var(--cs-radius-pill);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    max-width: calc(100% - 32px);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    z-index: 2;
}

.cs-card__monogram {
    position: relative;
    font-family: var(--cs-font);
    font-weight: 800;
    font-size: 44px;
    color: rgba(255, 255, 255, .92);
    text-shadow: 0 6px 24px rgba(0, 0, 0, .35);
    z-index: 1;
    transition: transform var(--cs-transition);
}

/* Body */
.cs-card__body {
    padding: 26px 26px 28px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.cs-card__title {
    font-family: var(--cs-font);
    font-size: 18px;
    font-weight: 600;
    color: var(--cs-text);
    margin-bottom: 12px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cs-card__desc {
    font-size: 14px;
    line-height: 1.65;
    color: var(--cs-text-body);
    margin-bottom: 20px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Metrics */
.cs-card__metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.cs-card__metric {
    border: 1px solid var(--cs-border);
    border-radius: 11px;
    padding: 13px 14px;
    background: var(--cs-bg-metric);
    min-width: 0; /* Prevent overflow */
}

.cs-card__metric-val {
    font-family: var(--cs-font);
    font-size: 19px;
    font-weight: 700;
    color: var(--cs-accent);
    line-height: 1;
    word-break: break-word;
}

.cs-card__metric-lbl {
    font-size: 11.5px;
    color: var(--cs-text-muted);
    margin-top: 5px;
    line-height: 1.3;
}

/* Link */
.cs-card__link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--cs-font);
    font-size: 13.5px;
    font-weight: 600;
    color: var(--cs-secondary);
    text-decoration: none;
    transition: color 150ms ease;
    min-height: 44px; /* Touch target */
}

.cs-card__link svg {
    width: 15px;
    height: 15px;
    transition: transform var(--cs-transition);
    flex-shrink: 0;
}

.cs-card__link:hover {
    color: #7C5CFC;
}

@media (hover: hover) {
    .cs-card__link:hover svg {
        transform: translateX(4px);
    }
}

/* ================= SINGLE CASE STUDY ================= */
.cs-single {
    max-width: 900px;
    margin: 0 auto;
}

.cs-single__hero {
    border-radius: var(--cs-radius-card);
    padding: 50px 40px;
    min-height: 240px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--cs-accent), #4F8CFF);
}

.cs-single__category {
    position: absolute;
    top: 20px;
    left: 20px;
    font-family: var(--cs-font-mono);
    font-size: 10px;
    letter-spacing: .14em;
    text-transform: uppercase;
    color: #fff;
    background: rgba(5, 7, 15, .55);
    border: 1px solid rgba(255, 255, 255, .25);
    padding: 6px 14px;
    border-radius: var(--cs-radius-pill);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.cs-single__title {
    font-family: var(--cs-font);
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 700;
    color: #fff;
    text-shadow: 0 4px 16px rgba(0, 0, 0, .3);
    position: relative;
    z-index: 1;
    margin: 0;
}

.cs-single__metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 14px;
    margin: 30px 0;
}

.cs-single__metric {
    border: 1px solid var(--cs-border);
    border-radius: 14px;
    padding: 20px;
    background: var(--cs-bg-metric);
    text-align: center;
    transition: transform var(--cs-transition), box-shadow var(--cs-transition);
}

@media (hover: hover) {
    .cs-single__metric:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 24px -12px rgba(12, 23, 51, .25);
    }
}

.cs-single__metric-val {
    font-family: var(--cs-font);
    font-size: 28px;
    font-weight: 800;
    color: var(--cs-accent);
    line-height: 1;
    word-break: break-word;
}

.cs-single__metric-lbl {
    font-size: 13px;
    color: var(--cs-text-muted);
    margin-top: 8px;
    line-height: 1.4;
}

.cs-single__content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--cs-text-body);
    margin-bottom: 30px;
}

.cs-single__content h2,
.cs-single__content h3,
.cs-single__content h4 {
    font-family: var(--cs-font);
    color: var(--cs-text);
    margin: 24px 0 12px;
}

.cs-single__content p {
    margin-bottom: 16px;
}

.cs-single__content ul,
.cs-single__content ol {
    margin: 0 0 16px 20px;
}

.cs-single__actions {
    text-align: center;
    padding: 30px 0;
}

.cs-single__btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: var(--cs-radius-pill);
    font-family: var(--cs-font);
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(115deg, #3B82F6 0%, var(--cs-primary) 55%, var(--cs-accent) 100%);
    text-decoration: none;
    border: none;
    box-shadow: 0 12px 30px -10px rgba(56, 189, 248, .55);
    transition: transform var(--cs-transition), box-shadow var(--cs-transition);
    min-height: 44px;
    cursor: pointer;
}

.cs-single__btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    transition: transform var(--cs-transition);
}

@media (hover: hover) {
    .cs-single__btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 18px 40px -12px rgba(56, 189, 248, .65);
    }

    .cs-single__btn:hover svg {
        transform: translateX(4px);
    }
}

.cs-single__error {
    text-align: center;
    padding: 40px;
    color: var(--cs-text-muted);
    font-size: 16px;
}

/* ================= RESPONSIVE ================= */

/* Tablet landscape */
@media (max-width: 1024px) {
    .cs-grid--cols-3,
    .cs-grid--cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .cs-heading-title {
        font-size: clamp(24px, 3vw, 36px);
    }

    .cs-single__hero {
        padding: 40px 32px;
        min-height: 200px;
    }
}

/* Tablet portrait */
@media (max-width: 860px) {
    .cs-section-heading {
        margin-bottom: 36px;
    }

    .cs-card__body {
        padding: 20px 20px 24px;
    }

    .cs-card__cover {
        height: 160px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .cs-grid--cols-2,
    .cs-grid--cols-3,
    .cs-grid--cols-4 {
        grid-template-columns: 1fr;
    }

    .cs-card__metrics {
        grid-template-columns: 1fr 1fr;
    }

    .cs-single__hero {
        padding: 36px 24px;
        min-height: 180px;
        border-radius: 14px;
    }

    .cs-single__metrics {
        grid-template-columns: 1fr 1fr;
    }

    .cs-single__btn {
        width: 100%;
        justify-content: center;
        padding: 16px 24px;
    }

    .cs-heading-desc {
        font-size: 15px;
    }
}

/* Small mobile */
@media (max-width: 480px) {
    .cs-card__cover {
        height: 140px;
    }

    .cs-card__monogram {
        font-size: 34px;
    }

    .cs-card__body {
        padding: 18px 18px 22px;
    }

    .cs-card__title {
        font-size: 16px;
    }

    .cs-card__desc {
        font-size: 13px;
    }

    .cs-card__metric-val {
        font-size: 16px;
    }

    .cs-card__metric-lbl {
        font-size: 11px;
    }

    .cs-single__metrics {
        grid-template-columns: 1fr;
    }

    .cs-single__metric-val {
        font-size: 22px;
    }

    .cs-eyebrow {
        font-size: 10px;
        padding: 6px 12px;
    }
}

/* Ensure Elementor responsive works - use Elementor's own breakpoints */
@media (min-width: 769px) and (max-width: 1024px) {
    .cs-grid--cs-tablet-2 { grid-template-columns: repeat(2, 1fr); }
    .cs-grid--cs-tablet-1 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .cs-grid--cs-mobile-1 { grid-template-columns: 1fr; }
}

/* ================= ACCESSIBILITY ================= */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .cs-card:hover,
    .cs-single__btn:hover {
        transform: none;
    }
}

.cs-card__link:focus-visible {
    outline: 2px solid var(--cs-primary);
    outline-offset: 3px;
    border-radius: 4px;
}

@media (max-width: 400px) {
    .cs-card__metrics {
        grid-template-columns: 1fr;
    }
}