/* ===========================
   Seminar List Section
   =========================== */
.seminar-list-section {
    padding: 80px 0 100px;
}

.seminar-list-section--past {
    padding-top: 0;
}

.seminar-list-section--past .seminar-list-header {
    margin-top: 0;
}

.seminar-list-header {
    margin-top: 50px;
    margin-bottom: 50px;
}

.content h2.seminar-list-title {
    font-size: 36px;
    font-weight: bold;
    margin: 0;
    color: #000;
}

/* ===========================
   Seminar Card
   =========================== */
.seminar-card-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.seminar-card {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 4px;
    overflow: hidden;
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    position: relative;
}

.seminar-card:hover {
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
}

.seminar-card-link {
    display: flex;
    flex-direction: column;
    height: 100%;
    color: inherit;
    text-decoration: none;
}

.seminar-card-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: #000;
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 4px 10px;
    border-radius: 2px;
    z-index: 2;
}

.seminar-card-badge--past {
    background: #666;
}

.seminar-card--past {
    opacity: 0.8;
}

.seminar-card--past .seminar-card-link {
    cursor: default;
}

.seminar-card--past:hover {
    transform: none;
    box-shadow: none;
}

.seminar-card--past .seminar-card-cta {
    color: #999;
}

.seminar-card-image {
    height: 200px;
    overflow: hidden;
}

.seminar-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.seminar-card-image-bg {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.claude-code-bg {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #0f3460 100%);
}

.seminar-card-icon {
    font-size: 80px;
    color: rgba(255, 255, 255, 0.15);
}

.seminar-card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.seminar-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}

.seminar-card-date {
    font-size: 13px;
    color: #555;
}

.seminar-card-date i {
    margin-right: 4px;
}

.seminar-card-type {
    font-size: 11px;
    font-weight: 600;
    color: #000;
    border: 1px solid #000;
    padding: 2px 8px;
    border-radius: 2px;
}

.seminar-card-title {
    font-size: 18px;
    font-weight: bold;
    line-height: 1.5;
    margin: 0 0 12px;
    color: #000;
}

.seminar-card-desc {
    font-size: 13px;
    line-height: 1.7;
    color: #555;
    margin: 0 0 18px;
}

.seminar-card-info {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 18px;
    padding-bottom: 18px;
    border-bottom: 1px solid #eee;
}

.seminar-card-price {
    font-size: 20px;
    font-weight: bold;
    color: #000;
}

.seminar-card-price small {
    font-size: 12px;
    font-weight: normal;
    color: #888;
}

.seminar-card-seats {
    font-size: 13px;
    color: #555;
}

.seminar-seats-left {
    display: inline-block;
    background-color: #ffebee;
    color: #d32f2f;
    font-size: 11px;
    font-weight: bold;
    padding: 2px 8px;
    border-radius: 10px;
    margin-left: 6px;
    vertical-align: middle;
}

.seminar-card-cta {
    font-size: 14px;
    font-weight: 600;
    color: #000;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: auto;
}

.seminar-card-cta i {
    font-size: 16px;
    transition: transform 0.2s ease;
}

.seminar-card:hover .seminar-card-cta i {
    transform: translateX(4px);
}

/* ===========================
   Responsive
   =========================== */
@media screen and (max-width: 959px) {
    .seminar-card-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 649px) {
    .content h2.seminar-list-title {
        font-size: 26px;
    }
    .seminar-card-list {
        grid-template-columns: 1fr;
    }
    .seminar-list-section {
        padding: 60px 0 80px;
    }
}