/* ============================
   CASE STUDIES PAGE
============================ */

.cs-container {
    width: min(1160px, calc(100% - 40px));
    margin: 0 auto;
}


/* HERO */

.cs-hero {
    position: relative;
    overflow: hidden;
    padding: 30px 0 0;
    background: var(--background, #ffffff);
}

.cs-breadcrumb {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted, #777);
    font-size: 13px;
}

.cs-breadcrumb a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.cs-breadcrumb a:hover {
    color: var(--accent, #3F51D9);
}

.cs-hero-content {
    max-width: 780px;
    padding: 75px 0 55px;
}

.cs-eyebrow {
    display: inline-block;
    margin-bottom: 16px;
    color: var(--accent, #3F51D9);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.cs-hero-content h1 {
    margin: 0;
    font-size: clamp(36px, 5vw, 64px);
    line-height: 1.13;
    letter-spacing: -2px;
    font-weight: 750;
    color: var(--heading, #171923);
}

.cs-hero-content h1 span {
    display: block;
    color: var(--accent, #3F51D9);
}

.cs-hero-content p {
    max-width: 650px;
    margin: 24px 0 0;
    color: var(--muted, #737783);
    font-size: 16px;
    line-height: 1.9;
}

.cs-hero-bottom {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 13px;
    padding: 20px 0;
    border-top: 1px solid var(--line, #e8e9ef);
    color: var(--muted, #737783);
    font-size: 13px;
}

.cs-hero-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--accent, #3F51D9);
}


/* MAIN SECTION */

.cs-section {
    padding: 65px 0 90px;
    background: var(--surface, #f8f9fc);
}

.cs-section-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 25px;
    margin-bottom: 30px;
}

.cs-section-heading h2 {
    margin: 0;
    color: var(--heading, #171923);
    font-size: clamp(28px, 3.5vw, 40px);
    letter-spacing: -1px;
}

.cs-section-heading p {
    margin: 12px 0 0;
    color: var(--muted, #737783);
    font-size: 14px;
    line-height: 1.8;
}

.cs-section-heading .cs-eyebrow {
    margin-bottom: 10px;
}

.cs-project-count {
    flex-shrink: 0;
    padding: 9px 13px;
    border: 1px solid var(--line, #e4e6ee);
    border-radius: 7px;
    background: var(--background, #fff);
    color: var(--muted, #737783);
    font-size: 12px;
}


/* FILTER */

.cs-filter-form {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    margin-bottom: 30px;
    padding: 17px 20px;
    border: 1px solid var(--line, #e4e6ee);
    border-radius: 10px;
    background: var(--background, #fff);
}

.cs-filter-label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--heading, #171923);
    font-size: 14px;
    font-weight: 600;
}

.cs-filter-icon {
    color: var(--accent, #3F51D9);
    font-size: 21px;
}

.cs-filter-controls {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.cs-service-select {
    min-width: 190px;
    max-width: 100%;
    padding: 11px 35px 11px 13px;
    border: 1px solid var(--line, #e4e6ee);
    border-radius: 7px;
    outline: none;
    background: var(--background, #fff);
    color: var(--heading, #171923);
    font: inherit;
    font-size: 13px;
}

.cs-service-select:focus {
    border-color: var(--accent, #3F51D9);
}

.cs-filter-btn,
.cs-reset-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 10px 16px;
    border: 1px solid var(--accent, #3F51D9);
    border-radius: 7px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: 0.2s ease;
}

.cs-filter-btn {
    background: var(--accent, #3F51D9);
    color: #fff;
}

.cs-filter-btn:hover {
    opacity: 0.88;
}

.cs-reset-btn {
    background: transparent;
    color: var(--accent, #3F51D9);
}

.cs-reset-btn:hover {
    background: var(--accent, #3F51D9);
    color: #fff;
}


/* PROJECT GRID */

.cs-project-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.cs-project-card {
    min-width: 0;
    overflow: hidden;
    border: 1px solid var(--line, #e7e8ef);
    border-radius: 11px;
    background: var(--background, #fff);
    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease,
        border-color 0.25s ease;
}

.cs-project-card:hover {
    transform: translateY(-5px);
    border-color: #d6d9f7;
    box-shadow: 0 15px 35px rgba(24, 31, 70, 0.07);
}


/* PROJECT IMAGE */

.cs-project-image {
    position: relative;
    display: block;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--surface, #f0f1f7);
}

.cs-project-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.cs-project-card:hover .cs-project-image img {
    transform: scale(1.045);
}

.cs-image-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: var(--muted, #737783);
    font-size: 13px;
}

.cs-image-arrow {
    position: absolute;
    top: 12px;
    right: 12px;
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    color: #222;
    font-size: 18px;
}


/* PROJECT CONTENT */

.cs-project-content {
    padding: 21px;
}

.cs-project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.cs-service-tag {
    display: inline-block;
    padding: 6px 9px;
    border-radius: 5px;
    background: rgba(63, 81, 217, 0.08);
    color: var(--accent, #3F51D9);
    font-size: 11px;
    font-weight: 600;
}

.cs-project-client {
    color: var(--muted, #737783);
    font-size: 11px;
}

.cs-project-content h3 {
    margin: 0;
    font-size: 19px;
    line-height: 1.5;
    font-weight: 700;
}

.cs-project-content h3 a {
    color: var(--heading, #171923);
    text-decoration: none;
    transition: color 0.2s ease;
}

.cs-project-content h3 a:hover {
    color: var(--accent, #3F51D9);
}

.cs-project-description {
    min-height: 66px;
    margin: 12px 0 18px;
    color: var(--muted, #737783);
    font-size: 13px;
    line-height: 1.75;
}


/* TECHNOLOGIES */

.cs-tech-list {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    padding-bottom: 20px;
}

.cs-tech-list span {
    padding: 6px 9px;
    border: 1px solid var(--line, #e7e8ef);
    border-radius: 5px;
    color: var(--muted, #666b7a);
    font-size: 11px;
}


/* CARD FOOTER */

.cs-card-footer {
    padding-top: 15px;
    border-top: 1px solid var(--line, #e7e8ef);
}

.cs-view-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent, #3F51D9);
    font-size: 13px;
    font-weight: 650;
    text-decoration: none;
}

.cs-view-link span {
    transition: transform 0.2s ease;
}

.cs-view-link:hover span {
    transform: translate(3px, -3px);
}


/* PAGINATION */

.cs-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 45px;
}

.cs-page-number,
.cs-page-arrow {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--line, #e4e6ee);
    border-radius: 7px;
    background: var(--background, #fff);
    color: var(--heading, #171923);
    font-size: 13px;
    text-decoration: none;
    transition: 0.2s ease;
}

.cs-page-number:hover,
.cs-page-arrow:not(.disabled):hover {
    border-color: var(--accent, #3F51D9);
    color: var(--accent, #3F51D9);
}

.cs-page-number.active {
    border-color: var(--accent, #3F51D9);
    background: var(--accent, #3F51D9);
    color: #fff;
}

.cs-page-arrow.disabled {
    opacity: 0.4;
    cursor: not-allowed;
}


/* EMPTY STATE */

.cs-empty-state {
    padding: 65px 20px;
    border: 1px dashed var(--line, #dfe1eb);
    border-radius: 12px;
    background: var(--background, #fff);
    text-align: center;
}

.cs-empty-icon {
    margin-bottom: 12px;
    color: var(--accent, #3F51D9);
    font-size: 40px;
}

.cs-empty-state h3 {
    margin: 0 0 10px;
    color: var(--heading, #171923);
    font-size: 23px;
}

.cs-empty-state p {
    max-width: 450px;
    margin: 0 auto 22px;
    color: var(--muted, #737783);
    font-size: 14px;
    line-height: 1.8;
}


/* RESPONSIVE */

@media (max-width: 950px) {
    .cs-project-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 20px;
    }

    .cs-hero-content {
        padding: 60px 0 45px;
    }
}

@media (max-width: 600px) {
    .cs-container {
        width: calc(100% - 30px);
    }

    .cs-section {
        padding: 45px 0 60px;
    }

    .cs-hero-content {
        padding: 45px 0 35px;
    }

    .cs-hero-content h1 {
        letter-spacing: -1.3px;
    }

    .cs-hero-content p {
        font-size: 14px;
    }

    .cs-section-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 15px;
    }

    .cs-filter-form {
        align-items: stretch;
        flex-direction: column;
        padding: 16px;
    }

    .cs-filter-controls {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .cs-service-select {
        grid-column: 1 / -1;
        width: 100%;
    }

    .cs-project-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .cs-project-content {
        padding: 18px;
    }

    .cs-project-description {
        min-height: 0;
    }

    .cs-hero-bottom {
        gap: 9px;
        font-size: 11px;
    }

    .cs-pagination {
        gap: 6px;
        margin-top: 30px;
    }

    .cs-page-number,
    .cs-page-arrow {
        width: 36px;
        height: 36px;
    }
}