/* =========================================================================
 * Attorna — Case Studies List Page (/case-studies/)
 * Design tokens mirror .cs-section (cream base, gold accent).
 * ========================================================================= */

.csl-archive {
    --csl-ink:      #1c1c1c;
    --csl-ink-soft: #5c564c;
    --csl-gold:     #a38753;
    --csl-gold-d:   #8a7143;
    --csl-bg:       #fbf8f2;
    --csl-line:     rgba(30, 28, 24, 0.12);

    position: relative;
    overflow: hidden;
    background:
        linear-gradient(180deg,
            rgba(251, 248, 242, 0.99) 0%,
            rgba(251, 248, 242, 0.92) 100%
        );
    color: var(--csl-ink);
    direction: rtl;
    text-align: right;
    padding: 72px 0 96px;
    font-family: var(--font-family-base, 'IRANSans', Tahoma, sans-serif);
    line-height: 1.9;
    -webkit-font-smoothing: antialiased;
}

.csl-archive::before {
    content: "";
    position: absolute;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 720px;
    height: 480px;
    background: radial-gradient(closest-side, rgba(163, 135, 83, 0.08), transparent 70%);
    pointer-events: none;
    z-index: 1;
}

.csl-archive .container {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 28px;
}

/* ---------- Watermark ---------- */
.csl-watermark {
    position: absolute;
    inset-inline: 0;
    top: 18px;
    transform: none;
    font-family: 'Jost', 'IRANSans', Tahoma, sans-serif;
    font-size: clamp(4rem, 12vw, 10rem);
    font-weight: 800;
    letter-spacing: 0.05em;
    color: rgba(29, 29, 29, 0.04);
    line-height: 1;
    white-space: nowrap;
    text-align: center;
    pointer-events: none;
    user-select: none;
    overflow: hidden;
    z-index: 1;
}

/* ---------- Header block ---------- */
.csl-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 24px;
    position: relative;
    z-index: 2;
    margin-bottom: 48px;
    text-align: right;
}

.csl-head__bar {
    display: block;
    width: 56px;
    height: 3px;
    margin-bottom: 12px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--csl-gold) 0%, #d3bd8a 100%);
}

.csl-title {
    margin: 0;
    font-family: var(--font-family-heading, 'Jost', 'IRANSans', Tahoma, sans-serif);
    font-size: clamp(28px, 3.6vw, 44px);
    line-height: 1.4;
    font-weight: var(--font-weight-bold, 700);
    color: var(--csl-ink);
    text-align: right;
}

/* ---------- Card grid ---------- */
.csl-grid {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.csl-card {
    position: relative;
    background: linear-gradient(180deg, #ffffff 0%, #fbf8f2 100%);
    border-radius: 16px;
    overflow: visible;
    box-shadow: 0 18px 36px -22px rgba(23, 20, 14, 0.35),
                0 0 0 1px rgba(23, 20, 14, 0.04);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.csl-card:hover,
.csl-card:focus-within {
    transform: translateY(-4px);
    box-shadow: 0 36px 56px -22px rgba(23, 20, 14, 0.45),
                0 0 0 1px rgba(163, 135, 83, 0.18);
}

.csl-card__link {
    display: block;
    text-decoration: none;
    color: inherit;
    overflow: hidden;
    border-radius: 16px;
    height: 100%;
}
.csl-card__link:focus-visible {
    outline: 2px solid var(--csl-gold-d);
    outline-offset: 3px;
}

.csl-card__media {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    border-radius: 16px 16px 0 0;
    overflow: hidden;
    background: linear-gradient(150deg, #efe9dd 0%, #e5dcc9 100%);
}
.csl-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.33, 1, 0.68, 1);
}
.csl-card:hover .csl-card__media img,
.csl-card__link:focus-visible .csl-card__media img {
    transform: scale(1.05);
}

.csl-card__body {
    padding: 16px 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.csl-card__title {
    margin: 0;
    font-family: var(--font-family-heading, 'Jost', 'IRANSans', Tahoma, sans-serif);
    font-size: 1.05rem;
    line-height: 1.75;
    font-weight: var(--font-weight-bold, 700);
    color: var(--csl-ink);
    transition: color 0.25s ease;
}
.csl-card:hover .csl-card__title,
.csl-card__link:focus-visible .csl-card__title {
    color: var(--csl-gold-d);
}

.csl-card__badge {
    align-self: flex-start;
    padding: 2px 12px;
    border-radius: 999px;
    background: rgba(163, 135, 83, 0.08);
    color: #b0892c;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

/* ---------- Empty state ---------- */
.csl-empty {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 28px;
    background: #fff;
    border: 1px dashed var(--csl-line);
    border-radius: 8px;
    color: var(--text-secondary, #666);
    font-size: 15px;
}
.csl-empty i { font-size: 24px; color: var(--csl-gold); }
.csl-empty p { margin: 0; }

/* ---------- Pagination ---------- */
.csl-pagination {
    position: relative;
    z-index: 2;
    margin-top: 40px;
    text-align: center;
}

.csl-pagination .nav-links {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
}

.csl-pagination a,
.csl-pagination span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 12px;
    border-radius: 6px;
    background: #fff;
    border: 1px solid rgba(163, 135, 83, 0.25);
    color: var(--csl-ink);
    font-family: var(--font-family-heading, 'Jost', 'IRANSans', Tahoma, sans-serif);
    font-size: 14px;
    text-decoration: none;
    transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.csl-pagination a:hover,
.csl-pagination a:focus-visible {
    background: var(--csl-gold);
    border-color: var(--csl-gold);
    color: #fff;
}

.csl-pagination .current {
    background: var(--csl-gold);
    border-color: var(--csl-gold);
    color: #fff;
    font-weight: 700;
}

.csl-pagination .dots {
    min-width: auto;
    height: auto;
    border: none;
    background: transparent;
    color: var(--text-secondary, #777);
}

/* ---------- Back link ---------- */
.csl-back {
    position: relative;
    z-index: 2;
    margin-top: 48px;
    text-align: right;
}
.csl-back__btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    background: var(--csl-gold);
    color: #fff;
    font-family: var(--font-family-heading, 'Jost', 'IRANSans', Tahoma, sans-serif);
    font-weight: var(--font-weight-bold, 700);
    font-size: 15px;
    text-decoration: none;
    border-radius: 6px;
    transition: background 0.25s ease, transform 0.25s ease;
}
.csl-back__btn:hover,
.csl-back__btn:focus-visible {
    background: var(--csl-gold-d);
    color: #fff;
    text-decoration: none;
    transform: translateY(-2px);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
    .csl-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
    }
}

@media (max-width: 768px) {
    .csl-archive { padding: 56px 0 72px; }
    .csl-archive .container { padding: 0 18px; }
    .csl-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
}

@media (max-width: 576px) {
    .csl-archive { padding: 48px 0 64px; }
    .csl-archive .container { padding: 0 14px; }
    .csl-watermark { font-size: clamp(3rem, 14vw, 5rem); }
    .csl-title { font-size: clamp(24px, 7.2vw, 32px); }
    .csl-grid { grid-template-columns: 1fr; gap: 16px; }
    .csl-card__body { padding: 14px 14px 18px; }
}

/* Respect reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .csl-card,
    .csl-card__link,
    .csl-card__media img,
    .csl-back__btn,
    .csl-pagination a {
        transition: none !important;
    }
}