:root {
    --season-primary: #d96b27;
    --season-secondary: #8c301b;
}
.thrash-banner {
    position: relative;
    background: linear-gradient(135deg, #2b1008 0%, #592411 100%);
    color: #fff;
    padding: 8rem 0;
    overflow: hidden;
}
[data-bs-theme="light"] .thrash-banner {
    background: linear-gradient(135deg, #fdf5e6 0%, #faebd7 100%);
    color: #333;
}
.math-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.12;
    pointer-events: none;
    user-select: none;
    font-size: 1.5rem;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 3rem;
    align-content: space-around;
}
[data-bs-theme="light"] .math-bg {
    opacity: 0.25;
}
.section-title {
    font-weight: 750;
    letter-spacing: -.025em;
    margin-bottom: 1.5rem;
}
.section-title i {
    color: var(--season-primary);
    margin-right: .5rem;
}
.schedule-card {
    border: 1px solid var(--bs-border-color);
    border-radius: 1rem;
    overflow: hidden;
    background: var(--bs-body-bg);
    margin-bottom: 1.25rem;
    transition: box-shadow .2s ease, transform .2s ease;
}
.schedule-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 .75rem 2rem rgba(0,0,0,.08);
}
.schedule-date {
    min-width: 125px;
    background: var(--season-primary);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.25rem;
    text-align: center;
}
.schedule-date .day {
    font-size: 1.8rem;
    font-weight: 750;
    line-height: 1;
}
.schedule-date .month {
    text-transform: uppercase;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .08em;
    margin-top: .4rem;
}
.schedule-date .time {
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .08em;
    margin-top: .4rem;
}

.talk-content {
    padding: 1.4rem 1.5rem;
}
.talk-title {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.4;
}
.speaker {
    color: var(--bs-secondary-color);
    font-size: .95rem;
}
.speaker i {
    color: var(--season-primary);
}
.info-card {
    border: 1px solid var(--bs-border-color);
    border-radius: 1rem;
    padding: 1.25rem;
    height: 100%;
    background: var(--bs-tertiary-bg);
}
.info-card:hover {
    transform: translateY(-2px);
}        
.info-card a {
    text-decoration: none;
}        
.contact-card {
    height: 100%;
    border: 1px solid var(--bs-border-color);
    border-radius: 1rem;
    background: var(--bs-secondary-bg);
    transition: transform .2s ease, box-shadow .2s ease;
}
.contact-card:hover {
    transform: translateY(-2px);
}
.abstract {
    color: var(--bs-secondary-color);
    font-size: .96rem;
}
.abstract-toggle {
    border: 0;
    padding-left: 0;
    padding-right: 0;
}
.text-season {
    color: var(--season-primary) !important;
}
.btn-season {
    background-color: var(--season-primary);
    color: white;
}
.btn-season i {
    color: white;
}        
.btn-season:hover {
    background-color: var(--season-secondary);
    color: white;
}