/* ============================
   Épreuves (epreuves.html) — version interactive (E5/E6/E7)
   ============================ */

#epreuves .ep-lead{
    font-size: 1.7rem;
    color: var(--text-muted);
    text-align: center;
    margin-bottom: 2.2rem;
}

/* ----- Sélecteur (3 grandes cartes) ----- */
#epreuves .ep-select{
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.8rem;
    margin: 2.2rem 0 2.6rem;
}

#epreuves .ep-card{
    text-align: left;
    background: rgba(22, 27, 34, 0.72);
    border: 1px solid rgba(88, 166, 255, 0.20);
    border-radius: 1.8rem;
    padding: 1.8rem;
    cursor: pointer;
    transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease, background .18s ease;
    position: relative;
    overflow: hidden;
}

#epreuves .ep-card::before{
    content:'';
    position:absolute;
    inset:0;
    background: radial-gradient(800px 240px at 10% 0%,
        rgba(88, 166, 255, 0.22),
        transparent 55%);
    opacity: .6;
    pointer-events:none;
}

#epreuves .ep-card::after{
    content:'';
    position:absolute;
    inset:-2px;
    background: linear-gradient(135deg,
        rgba(88, 166, 255, 0.0) 0%,
        rgba(88, 166, 255, 0.12) 35%,
        rgba(126, 87, 194, 0.12) 70%,
        rgba(88, 166, 255, 0.0) 100%);
    opacity: .0;
    pointer-events:none;
    transition: opacity .18s ease;
}

#epreuves .ep-card:hover{
    transform: translateY(-3px);
    border-color: rgba(88, 166, 255, 0.55);
    box-shadow: 0 16px 34px rgba(0,0,0,0.45);
}

#epreuves .ep-card:hover::after{ opacity: .8; }

#epreuves .ep-card:focus-visible{
    outline: 2px solid rgba(88, 166, 255, 0.7);
    outline-offset: 3px;
}

#epreuves .ep-card.active{
    border-color: rgba(88, 166, 255, 0.70);
    box-shadow:
        0 0 0 1px rgba(88, 166, 255, 0.35),
        0 18px 44px rgba(0,0,0,0.55);
    background: rgba(22, 27, 34, 0.82);
}

#epreuves .ep-card.active::after{ opacity: 1; }

#epreuves .ep-card-top{
    display:flex;
    justify-content: space-between;
    align-items:center;
    gap: 1.2rem;
    margin-bottom: 1rem;
}

#epreuves .ep-code{
    font-family: var(--font-mono);
    font-size: 1.6rem;
    color: var(--text-color);
    padding: .45rem .9rem;
    border-radius: 999px;
    background: rgba(13, 17, 23, 0.55);
    border: 1px solid rgba(88, 166, 255, 0.22);
}

#epreuves .ep-pill{
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    padding: .45rem .9rem;
    border-radius: 999px;
    border: 1px solid rgba(88, 166, 255, 0.42);
    background: rgba(13, 17, 23, 0.45);
}

#epreuves .ep-pill-muted{
    opacity: .85;
}

#epreuves .ep-card-title{
    font-size: 1.85rem;
    line-height: 1.25;
    margin-bottom: .9rem;
    color: var(--text-color);
}

#epreuves .ep-card-desc{
    font-size: 1.4rem;
    color: var(--text-muted);
    margin-bottom: 1.2rem;
}

#epreuves .ep-card-meta{
    display:flex;
    flex-wrap: wrap;
    gap: .7rem;
}

/* badges reusing global look */
#epreuves .badge{
    font-size: 1.15rem;
    color: var(--primary-color);
    border: 1px solid rgba(88, 166, 255, 0.40);
    background: rgba(13, 17, 23, 0.55);
    padding: .45rem .85rem;
    border-radius: 999px;
}

/* ----- Panels ----- */
#epreuves .ep-panels{
    margin-top: 1.8rem;
}

#epreuves .ep-panel{
    background: rgba(22, 27, 34, 0.74);
    border: 1px solid rgba(88, 166, 255, 0.20);
    border-radius: 1.8rem;
    padding: 2.2rem;
    box-shadow: 0 14px 32px rgba(0,0,0,0.35);
}

#epreuves .ep-panel-header{
    margin-bottom: 1.8rem;
}

#epreuves .ep-kicker{
    display:flex;
    align-items:center;
    gap: .9rem;
    color: var(--primary-color);
    font-family: var(--font-mono);
    font-size: 1.35rem;
    margin-bottom: .8rem;
}

#epreuves .ep-kicker i{ font-size: 2rem; }

#epreuves .ep-panel-title{
    font-size: 2.4rem;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--text-color);
}

#epreuves .ep-panel-sub{
    font-size: 1.55rem;
    color: var(--text-muted);
}

#epreuves .ep-sections{
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.4rem;
    margin-top: 1.8rem;
}

#epreuves .ep-section{
    border: 1px solid rgba(88, 166, 255, 0.18);
    border-radius: 1.4rem;
    background: rgba(13, 17, 23, 0.34);
    padding: 1.4rem 1.6rem;
}

#epreuves .ep-section h3{
    display:flex;
    align-items:center;
    gap: 1rem;
    font-size: 1.75rem;
    margin-bottom: 1.1rem;
    color: var(--text-color);
}

#epreuves .ep-section h3 i{
    color: var(--primary-color);
    font-size: 2.2rem;
}

#epreuves .ep-list{
    margin: 0;
    padding-left: 2rem;
}

#epreuves .ep-list li{
    margin-bottom: .75rem;
    font-size: 1.45rem;
    color: var(--text-muted);
}

#epreuves .ep-note{
    margin-top: 1.1rem;
    color: var(--text-muted);
    font-size: 1.4rem;
}

#epreuves .ep-chips{
    display:flex;
    flex-wrap: wrap;
    gap: .8rem;
}

#epreuves .chip{
    font-size: 1.25rem;
    color: var(--text-color);
    border: 1px solid rgba(88, 166, 255, 0.22);
    background: rgba(22, 27, 34, 0.45);
    padding: .5rem .9rem;
    border-radius: 999px;
}

#epreuves .ep-callout{
    margin-top: 1.6rem;
    display:flex;
    gap: 1.2rem;
    align-items:flex-start;
    padding: 1.4rem 1.6rem;
    border-radius: 1.4rem;
    border: 1px solid rgba(88, 166, 255, 0.20);
    background: rgba(13, 17, 23, 0.42);
    color: var(--text-muted);
    font-size: 1.45rem;
}

#epreuves .ep-callout i{
    color: var(--primary-color);
    font-size: 2.2rem;
    margin-top: .1rem;
}

/* ----- PDF Card ----- */
#epreuves .pdf-card{
    margin-top: 1.8rem;
    border-radius: 1.8rem;
    border: 1px solid rgba(88, 166, 255, 0.22);
    background: rgba(13, 17, 23, 0.50);
    overflow: hidden;
}

#epreuves .pdf-head{
    display:flex;
    align-items:flex-start;
    justify-content: space-between;
    gap: 1.6rem;
    padding: 1.6rem 1.8rem;
    background: linear-gradient(135deg,
        rgba(88, 166, 255, 0.10),
        rgba(126, 87, 194, 0.08));
    border-bottom: 1px solid rgba(88, 166, 255, 0.16);
}

#epreuves .pdf-title{
    font-size: 1.75rem;
    color: var(--text-color);
    display:flex;
    align-items:center;
    gap: 1rem;
    margin-bottom: .6rem;
}

#epreuves .pdf-title i{ color: var(--primary-color); font-size: 2.2rem; }

#epreuves .pdf-desc{
    font-size: 1.35rem;
    color: var(--text-muted);
    margin: 0;
}

#epreuves .pdf-actions{
    display:flex;
    flex-wrap: wrap;
    gap: 1rem;
}

#epreuves .btn.btn-sm{
    padding: .9rem 2.0rem;
    font-size: 1.35rem;
}

#epreuves .pdf-embed{
    width: 100%;
    height: 680px;
    background: rgba(22, 27, 34, 0.35);
}

#epreuves .pdf-embed embed{
    width: 100%;
    height: 100%;
    display:block;
}

/* ----- Responsive ----- */
@media (max-width: 991px){
    #epreuves .ep-select{ grid-template-columns: 1fr; }
    #epreuves .pdf-head{ flex-direction: column; }
    #epreuves .pdf-actions{ width: 100%; }
}

@media (prefers-reduced-motion: reduce){
    #epreuves .ep-card,
    #epreuves .ep-card:hover{
        transition: none;
        transform: none;
    }
}