/* ===================================================================
 * Quest Mode — course-view trailer card
 *
 * Loaded via mod_aicasestudy_before_standard_html_head() on any
 * course-view page. Renders the rich "trailer" card injected by
 * aicasestudy_get_coursemodule_info() into $info->content.
 *
 * @package    mod_aicasestudy
 * @copyright  2026 DreamCom
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * =================================================================== */

/* ---- container reset + dark surface ----------------------------- */
.activity.modtype_aicasestudy:has(.acs-q-trailer) .description,
.activity.modtype_aicasestudy:has(.acs-q-trailer) .activity-description,
.activity.modtype_aicasestudy:has(.acs-q-trailer) .contentafterlink {
    margin: 0;
    padding: 0;
    background: transparent;
    border: 0;
    overflow: visible;
}
.activity.modtype_aicasestudy:has(.acs-q-trailer) .activity-info,
.activity.modtype_aicasestudy:has(.acs-q-trailer) .activitybadge,
.activity.modtype_aicasestudy:has(.acs-q-trailer) .activity-actions {
    display: none !important;
}
.activity.modtype_aicasestudy:has(.acs-q-trailer) .activityinstance > a:first-child,
.activity.modtype_aicasestudy:has(.acs-q-trailer) .activityname {
    display: none;
}

.acs-q-trailer {
    --c-navy:    #0a1628;
    --c-navy-2:  #0f1e36;
    --c-navy-3:  #182b47;
    --c-blue:    #2563eb;
    --c-text:    #e2e8f0;
    --c-text-2:  #94a3b8;
    --c-border:  rgba(148, 163, 184, 0.18);

    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 0;
    background: linear-gradient(135deg, var(--c-navy-2), var(--c-navy));
    border: 1px solid var(--c-border);
    border-radius: 18px;
    overflow: hidden;
    color: var(--c-text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.25);
    margin: 8px 0 16px;
    position: relative;
    transition: transform 0.2s ease-out, box-shadow 0.2s ease-out;
}
.acs-q-trailer:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 42px rgba(37, 99, 235, 0.18);
}

.acs-q-trailer__media {
    position: relative;
    overflow: hidden;
    background: var(--c-navy);
    min-height: 220px;
}
.acs-q-trailer__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    position: absolute;
    inset: 0;
}
.acs-q-trailer__media::after {
    /* gradient fade so the image blends into the body */
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent 60%, var(--c-navy-2) 100%);
    pointer-events: none;
}
.acs-q-trailer__scene {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 2;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(8px);
    border: 1px solid var(--c-border);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 6px;
    letter-spacing: 0.4px;
}

.acs-q-trailer__body {
    padding: 24px 28px 24px 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    min-width: 0;
}
.acs-q-trailer__pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.acs-q-trailer__pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--c-border);
    color: var(--c-text-2);
    font-size: 11.5px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 10px;
    border-radius: 999px;
}
.acs-q-trailer__pill b {
    color: var(--p, white);
    font-weight: 700;
}
.acs-q-trailer__title {
    font-size: 22px;
    font-weight: 800;
    color: white;
    letter-spacing: -0.4px;
    margin: 4px 0 0;
    line-height: 1.2;
}
.acs-q-trailer__desc {
    color: var(--c-text-2);
    font-size: 13.5px;
    line-height: 1.55;
    margin: 0;
    max-width: 580px;
}
.acs-q-trailer__cta {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 8px;
    padding: 12px 22px;
    border-radius: 12px;
    background: linear-gradient(135deg, #2563eb, #14b8a6);
    color: white !important;
    font-weight: 700;
    font-size: 14px;
    text-decoration: none !important;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
    transition: transform 0.18s, box-shadow 0.18s, filter 0.18s;
}
.acs-q-trailer__cta:hover {
    transform: translateY(-1px);
    filter: brightness(1.08);
    box-shadow: 0 12px 32px rgba(37, 99, 235, 0.55);
    color: white !important;
    text-decoration: none !important;
}
.acs-q-trailer__cta:focus { outline: 2px solid rgba(255,255,255,0.5); outline-offset: 2px; }

@media (max-width: 720px) {
    .acs-q-trailer {
        grid-template-columns: 1fr;
    }
    .acs-q-trailer__media {
        min-height: 180px;
    }
    .acs-q-trailer__media::after {
        background: linear-gradient(180deg, transparent 50%, var(--c-navy-2) 100%);
    }
    .acs-q-trailer__body {
        padding: 22px;
    }
}

/* Some Moodle 4 themes wrap the activity in extra cards. Strip them. */
.modtype_aicasestudy:has(.acs-q-trailer) > .card,
.modtype_aicasestudy:has(.acs-q-trailer) .card-body {
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    padding: 0 !important;
}