/* ============================================================
   RomIQ Solutions — Case Study Page
   Matches main site's dark aesthetic system
   ============================================================ */

/* ── PAGE HERO ── */
.page-header {
    padding: 160px 52px 80px;
    position: relative;
    z-index: 1;
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

/* Ghost watermark */
.page-header::before {
    content: 'CASE';
    position: absolute;
    font-family: 'Bebas Neue', sans-serif;
    font-size: 22vw;
    color: rgba(255, 255, 255, 0.015);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

/* Client name — small mono tag above title */
.cs-client {
    font-family: 'Chivo Mono', monospace;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--violet2);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.cs-client::before {
    content: '◆';
    font-size: 0.45rem;
    opacity: 0.6;
}

.page-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(3rem, 7vw, 6.5rem);
    line-height: 0.9;
    letter-spacing: 0.04em;
    color: var(--text);
    font-weight: 400;
    margin-bottom: 24px;
}

.page-subtitle {
    font-size: 0.88rem;
    font-weight: 300;
    color: var(--muted);
    line-height: 1.85;
    max-width: 560px;
    font-family: 'Cabinet Grotesk', sans-serif;
}

/* ── RESULTS BANNER ── */
.cs-results-bar {
    background: var(--cyan);
    padding: 18px 52px;
    position: relative;
    z-index: 1;
}

.cs-results-bar .container {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.cs-results-label {
    font-family: 'Chivo Mono', monospace;
    font-size: 0.68rem;
    letter-spacing: 0.14em;
    color: var(--bg);
    opacity: 0.6;
    white-space: nowrap;
}

.cs-results-value {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.1rem;
    letter-spacing: 0.06em;
    color: var(--bg);
}

/* ── BODY SECTION ── */
.cs-body-section {
    padding: 100px 52px 120px;
    position: relative;
    z-index: 1;
}

/* Two-column layout: blocks + sidebar */
.cs-layout {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 80px;
    align-items: start;
}

/* ── CONTENT BLOCKS ── */
.cs-blocks {
    display: flex;
    flex-direction: column;
}

.cs-block {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 32px;
    align-items: start;
    padding: 40px 0;
    border-top: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: padding 0.3s ease;
}

.cs-block::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 0;
    background: var(--surface2);
    transition: width 0.4s cubic-bezier(0.77, 0, 0.18, 1);
    z-index: 0;
}

.cs-block:hover { padding-left: 20px; }
.cs-block:hover::before { width: 100%; }
.cs-block:last-child { border-bottom: 1px solid var(--border); }
.cs-block > * { position: relative; z-index: 1; }

.cs-block-num {
    font-family: 'Chivo Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--muted);
    padding-top: 6px;
}

.cs-block-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(1.8rem, 3vw, 2.6rem);
    letter-spacing: 0.04em;
    color: var(--text);
    margin-bottom: 18px;
    line-height: 1;
    transition: color 0.2s;
}

.cs-block:hover .cs-block-title { color: var(--cyan); }

.cs-block-text {
    font-size: 0.88rem;
    font-weight: 300;
    color: var(--muted);
    line-height: 1.85;
    font-family: 'Cabinet Grotesk', sans-serif;
}

/* ── SIDEBAR ── */
.cs-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2px;
    position: sticky;
    top: 100px;
}

.cs-meta-card {
    background: var(--surface2);
    border: 1px solid var(--border);
    padding: 20px 22px;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s;
}

.cs-meta-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: var(--cyan);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.cs-meta-card:hover { border-color: rgba(0, 229, 255, 0.2); }
.cs-meta-card:hover::after { transform: scaleX(1); }

.cs-meta-label {
    font-family: 'Chivo Mono', monospace;
    font-size: 0.6rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
}

.cs-meta-value {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text);
    font-family: 'Cabinet Grotesk', sans-serif;
}

/* CTA button fills sidebar width */
.cs-sidebar-cta {
    display: block;
    text-align: center;
    margin-top: 12px;
    width: 100%;
    box-sizing: border-box;
}

.cs-back-link {
    display: block;
    text-align: center;
    margin-top: 16px;
    font-family: 'Chivo Mono', monospace;
    font-size: 0.66rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    text-decoration: none;
    transition: color 0.2s;
    cursor: none;
}

.cs-back-link:hover { color: var(--cyan); }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
    .page-header {
        padding: 120px 24px 60px;
    }

    .cs-results-bar {
        padding: 16px 24px;
    }

    .cs-body-section {
        padding: 60px 24px 80px;
    }

    .cs-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    /* Sidebar moves above content on mobile */
    .cs-sidebar {
        order: -1;
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .cs-meta-card {
        flex: 1 1 140px;
    }

    .cs-sidebar-cta,
    .cs-back-link {
        flex: 1 1 100%;
    }

    .cs-block {
        grid-template-columns: 40px 1fr;
        gap: 16px;
    }

    .page-title {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }
}

@media (max-width: 600px) {
    .cs-sidebar {
        flex-direction: column;
    }
}