/**
 * EMA Case Studies — front-end styles.
 * Matches .filter-bar + .cases-grid from our-work.html.
 */

/* ---------- Filter bar ---------- */
.ema-filter-bar{
    background: #F5EFD9;
    padding: 24px 32px;
    border-bottom: 2px solid #12110F;
}
.ema-filter-bar.is-sticky{
    position: sticky;
    top: 0;
    z-index: 30;
}
.ema-filter-bar-inner{
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 32px;
    align-items: center;
}
.ema-filter-label{
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: #A08C50;
}
.ema-filter-chips{
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.ema-filter-chip{
    padding: 10px 18px;
    background: #EDE5C5;
    color: #12110F;
    border: 2px solid #12110F;
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-weight: 600;
    font-size: 11.5px;
    letter-spacing: .18em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background .2s, color .2s, transform .15s;
}
.ema-filter-chip:hover{ background: #FFF8E0; }
.ema-filter-chip.active{
    background: #12110F;
    color: #F5EFD9;
}
.ema-filter-count{
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: rgba(18,17,15,.6);
    white-space: nowrap;
}
.ema-filter-count strong{
    color: #A01428;
    font-size: 14px;
}

/* ---------- Grid ---------- */
.ema-cases{
    padding: 80px 32px 120px;
    background: #F5EFD9;
}
.ema-cases-grid{
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.ema-case{
    background: #EDE5C5;
    border: 3px solid #12110F;
    overflow: hidden;
    transition: transform .35s cubic-bezier(.6,.05,.2,.95), box-shadow .25s;
    display: block;
    text-decoration: none;
    position: relative;
    color: inherit;
}
/* Subtle alternating tilts — same pattern as our-work.html */
.ema-case:nth-child(6n+1){ transform: rotate(-0.5deg); }
.ema-case:nth-child(6n+2){ transform: rotate(0); }
.ema-case:nth-child(6n+3){ transform: rotate(0.5deg); }
.ema-case:nth-child(6n+4){ transform: rotate(0.4deg); }
.ema-case:nth-child(6n+5){ transform: rotate(-0.4deg); }
.ema-case:nth-child(6n+6){ transform: rotate(0); }
.ema-case:hover{
    transform: rotate(0) translateY(-6px);
    box-shadow: 6px 6px 0 #A01428;
}
.ema-case-img{
    aspect-ratio: 4/3;
    background-size: cover;
    background-position: center;
    border-bottom: 3px solid #12110F;
    position: relative;
    overflow: hidden;
}
.ema-case-img::after{
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(18,17,15,0) 30%, rgba(18,17,15,.6) 100%);
}
.ema-case-tag{
    position: absolute;
    top: 14px;
    left: 14px;
    background: #A01428;
    color: #F5EFD9;
    padding: 5px 11px;
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .2em;
    text-transform: uppercase;
    z-index: 2;
}
.ema-case-outcome{
    position: absolute;
    bottom: 14px;
    right: 14px;
    z-index: 2;
    background: #12110F;
    color: #C2A862;
    padding: 8px 14px;
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: .04em;
    text-transform: uppercase;
    border: 2px solid #F5EFD9;
}
.ema-case-info{ padding: 26px 26px 28px; }
.ema-case-client{
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .24em;
    text-transform: uppercase;
    color: #A08C50;
    margin-bottom: 8px;
}
.ema-case-title{
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-weight: 700;
    font-size: 24px;
    line-height: 1.08;
    letter-spacing: -0.005em;
    text-transform: uppercase;
    color: #12110F;
    margin: 0 0 10px;
}
.ema-case-title em{
    font-style: normal;
    color: #A01428;
}
.ema-case-summary{
    /* Explicit font-family — source HTML has no font-family on this <p>. */
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-size: 13.5px;
    line-height: 1.55;
    color: rgba(18,17,15,.7);
    margin: 0 0 14px;
}
.ema-case-meta{
    display: flex;
    align-items: center;
    gap: 10px;
    padding-top: 14px;
    border-top: 2px solid #12110F;
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: rgba(18,17,15,.6);
}
.ema-case-meta .arr{
    margin-left: auto;
    width: 28px;
    height: 28px;
    background: #12110F;
    color: #F5EFD9;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    transition: background .2s, transform .2s;
}
.ema-case:hover .ema-case-meta .arr{
    background: #A01428;
    transform: rotate(-45deg);
}

/* Empty state */
.ema-cases-empty{
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 32px;
    font-family: 'Oswald', 'Arial Narrow', sans-serif;
    font-size: 14px;
    color: rgba(18,17,15,.6);
    letter-spacing: .12em;
    text-transform: uppercase;
}

/* Hidden via filter (kept simple — display:none works fine with the grid) */
.ema-case[hidden]{ display: none !important; }

@media (max-width: 1100px){
    .ema-filter-bar-inner{ grid-template-columns: 1fr; gap: 14px; }
    .ema-filter-label{ display: none; }
    .ema-filter-count{ order: 3; }
    .ema-cases-grid{ grid-template-columns: 1fr 1fr; gap: 18px; }
}
@media (max-width: 780px){
    .ema-filter-bar{ padding: 14px 16px; position: relative; }
    .ema-filter-chips{
        gap: 6px;
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 4px;
        /* Smooth horizontal scroll on mobile */
        -webkit-overflow-scrolling: touch;
    }
    .ema-filter-chip{
        padding: 8px 14px;
        font-size: 10.5px;
        letter-spacing: .14em;
        white-space: nowrap;
        flex-shrink: 0;
    }
    .ema-cases{ padding: 40px 16px 60px; }
    .ema-cases-grid{ grid-template-columns: 1fr; gap: 18px; }
    .ema-case:nth-child(n){ transform: rotate(0) !important; }
    .ema-case:hover{ transform: translateY(-3px) !important; box-shadow: 4px 4px 0 #A01428; }
    .ema-case-info{ padding: 22px 22px 24px; }
    .ema-case-title{ font-size: 21px; }
}

@media (prefers-reduced-motion: reduce){
    .ema-case{ transition: none; }
    .ema-case:nth-child(n){ transform: rotate(0); }
}