/* =====================================================================
   EHF — Agenda / Sessions Explorer  (agenda.css)
   GITEX-style sessions grid on the Glassmorphism 2.0 system.
   ===================================================================== */

/* --- Page hero --- */
.agenda-hero { padding: 46px 0 22px; }
.agenda-hero .eyebrow {
    font-size: 12px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase;
    color: var(--accent-bright);
}
.agenda-hero h1 { font-size: clamp(30px, 5vw, 50px); line-height: 1.05; margin: 10px 0 8px; }
.agenda-hero h1 .glow { color: var(--accent-bright); text-shadow: 0 0 26px var(--accent-glow); }
.agenda-hero p { color: var(--text-dim); max-width: 640px; font-size: 15px; }
.agenda-hero .hero-meta { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 16px; color: var(--text-faint); font-size: 13px; }
.agenda-hero .hero-meta span { display: inline-flex; align-items: center; gap: 7px; }

/* --- Sticky filter bar --- */
.filter-bar {
    position: sticky; top: 70px; z-index: 40;
    margin: 18px 0 28px; padding: 14px 16px;
    display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
    background: rgba(19, 28, 49, 0.55);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.filter-days { display: flex; gap: 10px; flex-wrap: wrap; }
.filter-spacer { flex: 1 1 24px; }
.filter-selects { display: flex; gap: 10px; flex-wrap: wrap; }
.filter-group { display: flex; flex-direction: column; gap: 4px; }
.filter-group label { font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--text-faint); padding-left: 4px; }

/* --- Result count --- */
.result-count { color: var(--text-faint); font-size: 13px; margin: 0 0 16px; padding-left: 4px; }
.result-count b { color: var(--text); }

/* --- The grid --- */
.agenda-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 22px;
}

/* --- Session card --- */
.session-card {
    position: relative;
    display: flex; flex-direction: column;
    padding: 20px 20px 18px;
    border-radius: var(--radius-lg);
    isolation: isolate;
    transition: transform .2s ease, box-shadow .25s ease, border-color .25s ease;
}
.session-card::before {
    /* faint top sheen tinted with the track colour */
    content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: -1;
    background: linear-gradient(160deg, rgba(var(--track-rgb), 0.10), transparent 42%);
    pointer-events: none;
}
.session-card:hover {
    transform: translateY(-4px);
    border-color: rgba(var(--track-rgb), 0.45);
    box-shadow: 0 18px 46px rgba(0, 0, 0, 0.5), 0 0 24px rgba(var(--track-rgb), 0.22);
}

.card-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; margin-bottom: 14px; }

/* Track badge — neon glow keyed to --track-rgb */
.track-badge {
    font-size: 11px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase;
    padding: 6px 12px; border-radius: 999px;
    color: var(--track, var(--accent));
    background: rgba(var(--track-rgb), 0.16);
    border: 1px solid rgba(var(--track-rgb), 0.5);
    box-shadow: 0 0 14px rgba(var(--track-rgb), 0.45), inset 0 0 10px rgba(var(--track-rgb), 0.12);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.55), 0 0 10px rgba(var(--track-rgb), 0.5);
    white-space: nowrap;
}
.session-type-tag { font-size: 10px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--text-faint); margin-left: 8px; }

/* Book "+" FAB */
.btn-book {
    flex: none; width: 42px; height: 42px; border-radius: 13px; cursor: pointer;
    display: grid; place-items: center;
    color: var(--accent-bright);
    background: rgba(var(--accent-rgb), 0.10);
    border: 1px solid rgba(var(--accent-rgb), 0.45);
    box-shadow: 0 0 0 1px rgba(var(--accent-rgb), 0.08), 0 0 16px rgba(var(--accent-rgb), 0.22);
    transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn-book svg { width: 20px; height: 20px; }
.btn-book:hover { transform: scale(1.08) rotate(90deg); color: #052015; background: linear-gradient(135deg, var(--accent-bright), var(--accent)); box-shadow: 0 0 26px var(--accent-glow); }
.btn-book:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.30), 0 0 18px var(--accent-glow); }
.btn-book:disabled { cursor: default; transform: none; }
.btn-book.is-booked {
    color: var(--accent-bright); background: rgba(var(--accent-rgb), 0.16);
    border-color: rgba(var(--accent-rgb), 0.7); box-shadow: 0 0 18px var(--accent-glow);
    transform: none;
}
.btn-book.is-booked:hover { rotate: none; transform: none; }
.btn-book.is-busy { opacity: .6; pointer-events: none; }

.card-title { font-size: 19px; line-height: 1.25; margin-bottom: 12px; }

.card-meta { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-bottom: 12px; }
.card-meta .meta { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; color: var(--text-dim); font-weight: 500; }
.card-meta .meta svg { width: 15px; height: 15px; opacity: .8; color: var(--accent-bright); }

.card-desc {
    font-size: 13.5px; color: var(--text-dim); margin: 0 0 16px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}

/* --- Capacity visualizer --- */
.card-capacity { margin: 2px 0 16px; }
.capacity-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.capacity-head .cap-label { font-size: 11.5px; color: var(--text-faint); font-weight: 600; }
.capacity-head .cap-count { font-size: 11.5px; color: var(--text-dim); font-weight: 700; }
.capacity-track { height: 7px; border-radius: 999px; background: rgba(255, 255, 255, 0.07); overflow: hidden; }
.capacity-fill {
    height: 100%; border-radius: 999px; width: 0;
    background: linear-gradient(90deg, var(--accent), var(--accent-bright));
    box-shadow: 0 0 10px var(--accent-glow);
    transition: width .5s cubic-bezier(.2, .8, .2, 1);
}
/* Filling fast (>=80%) */
.session-card.is-filling .capacity-fill {
    background: linear-gradient(90deg, #f97316, var(--danger));
    box-shadow: 0 0 12px rgba(var(--danger-rgb), 0.55);
}
.filling-fast {
    display: none; align-items: center; gap: 6px; margin-top: 8px;
    font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
    color: #fecaca;
}
.session-card.is-filling .filling-fast { display: inline-flex; }
.filling-fast .dot {
    width: 8px; height: 8px; border-radius: 50%; background: var(--danger);
    box-shadow: 0 0 0 rgba(var(--danger-rgb), 0.7);
    animation: pulseRed 1.4s ease-in-out infinite;
}
.session-card.is-full .capacity-fill { background: rgba(var(--danger-rgb), 0.7); }
.session-card.is-full .btn-book { color: var(--danger); border-color: rgba(var(--danger-rgb), 0.5); background: rgba(var(--danger-rgb), 0.12); box-shadow: none; }
@keyframes pulseRed {
    0%, 100% { box-shadow: 0 0 0 0 rgba(var(--danger-rgb), 0.6); opacity: 1; }
    50%      { box-shadow: 0 0 0 7px rgba(var(--danger-rgb), 0); opacity: .7; }
}

/* --- Card footer: overlapping speaker avatars --- */
.card-foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--glass-border); display: flex; align-items: center; gap: 12px; }
.avatars { display: flex; align-items: center; }
.avatars .avatar {
    width: 38px; height: 38px; border-radius: 50%;
    margin-left: -12px; position: relative;
    border: 2px solid var(--bg);
    background: var(--bg-elevated); object-fit: cover;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    display: grid; place-items: center;
    font-size: 12px; font-weight: 800; color: var(--text);
    transition: transform .18s ease, box-shadow .18s ease;
    overflow: hidden;
}
.avatars .avatar:first-child { margin-left: 0; }
.avatars .avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.avatars .avatar:hover { transform: translateY(-3px) scale(1.06); box-shadow: 0 0 14px var(--accent-glow); z-index: 10; }
.avatars .avatar.more { background: rgba(var(--accent-rgb), 0.16); color: var(--accent-bright); font-size: 11px; }
.foot-label { font-size: 12.5px; color: var(--text-faint); font-weight: 600; }
.foot-label b { color: var(--text-dim); font-weight: 700; }

/* --- Empty state --- */
.empty-state { display: none; text-align: center; padding: 70px 20px; color: var(--text-faint); }
.empty-state.show { display: block; }
.empty-state svg { width: 54px; height: 54px; opacity: .4; margin-bottom: 14px; }
.empty-state h3 { font-size: 20px; color: var(--text-dim); margin-bottom: 6px; }

@media (max-width: 760px) {
    .filter-bar { top: 62px; padding: 12px 12px; }
    .filter-spacer { flex-basis: 100%; height: 0; }
    .filter-days .pill { min-height: 42px; display: inline-flex; align-items: center; }
    .agenda-grid { grid-template-columns: 1fr; }
}