/* ===== seminar detail (v0) ===== */

/* Hero */
.seminar-detail-hero {
    position: relative;
    padding: 70px 0 60px;
    color: #fff;
    overflow: hidden;
    min-height: 360px;
    display: flex;
    align-items: center;
}
.seminar-detail-hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: blur(2px) brightness(0.55);
    transform: scale(1.05);
    z-index: 0;
}
.seminar-detail-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15,42,68,0.85) 0%, rgba(46,123,198,0.65) 100%);
    z-index: 1;
}
.seminar-detail-hero .container {
    position: relative;
    z-index: 2;
}
.seminar-detail-hero-inner {
    max-width: 820px;
}
.seminar-detail-tag {
    display: inline-block;
    background: #ff3008;
    color: #fff;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 999px;
    letter-spacing: 0.04em;
    margin-bottom: 16px;
}
.seminar-detail-title {
    font-size: 2em;
    font-weight: 700;
    color: #fff;
    line-height: 1.4;
    margin: 0 0 16px;
    text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.seminar-detail-lead {
    font-size: 1rem;
    color: rgba(255,255,255,0.9);
    line-height: 1.8;
    margin: 0 0 24px;
}
.seminar-detail-quickmeta {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
}
.seminar-detail-quickmeta li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 0.88rem;
    font-weight: 500;
    color: #fff;
}
.seminar-detail-quickmeta i {
    color: #9fd0ff;
    font-size: 0.85rem;
}

/* Main */
.seminar-detail-main {
    background: #f5f7fa;
    padding: 50px 0;
}
.seminar-detail-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1em;
}
.seminar-detail-grid {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 32px;
    align-items: start;
}

/* Body */
.seminar-detail-body {
    background: #fff;
    border-radius: 14px;
    padding: 36px 36px 24px;
    box-shadow: 0 2px 10px rgba(15,42,68,0.06);
}
.seminar-detail-block {
    margin-bottom: 36px;
}
.seminar-detail-block:last-child {
    margin-bottom: 0;
}
.seminar-detail-h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #0f2a44;
    border-left: 4px solid #ff3008;
    padding-left: 12px;
    margin: 0 0 18px;
    line-height: 1.4;
}
.seminar-detail-text {
    font-size: 0.95rem;
    color: #38495a;
    line-height: 1.9;
    margin: 0;
}

/* Checklist */
.seminar-detail-checklist {
    list-style: none;
    padding: 0;
    margin: 0;
}
.seminar-detail-checklist li {
    position: relative;
    padding: 10px 0 10px 32px;
    font-size: 0.95rem;
    color: #38495a;
    line-height: 1.7;
    border-bottom: 1px dashed #e6ecf2;
}
.seminar-detail-checklist li:last-child {
    border-bottom: none;
}
.seminar-detail-checklist li::before {
    content: "\f00c";
    font-family: "Font Awesome 5 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 12px;
    color: #2e7bc6;
    background: #e8f1fb;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    text-align: center;
    line-height: 22px;
    font-size: 0.7rem;
}

/* Timeline */
.seminar-detail-timeline {
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
}
.seminar-detail-timeline::before {
    content: "";
    position: absolute;
    top: 8px;
    bottom: 8px;
    left: 110px;
    width: 2px;
    background: #e6ecf2;
}
.seminar-detail-timeline li {
    position: relative;
    display: flex;
    gap: 24px;
    padding: 8px 0 20px 0;
}
.seminar-detail-timeline li::before {
    content: "";
    position: absolute;
    left: 105px;
    top: 14px;
    width: 12px;
    height: 12px;
    background: #ff3008;
    border-radius: 50%;
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px #ff3008;
}
.seminar-detail-time {
    flex-shrink: 0;
    width: 95px;
    font-size: 0.85rem;
    color: #2e7bc6;
    font-weight: 600;
    padding-top: 10px;
}
.seminar-detail-timeline li > div {
    padding-left: 24px;
    flex: 1;
}
.seminar-detail-timeline strong {
    display: block;
    font-size: 1rem;
    color: #0f2a44;
    margin-bottom: 4px;
}
.seminar-detail-timeline p {
    font-size: 0.9rem;
    color: #5a6b7a;
    margin: 0;
    line-height: 1.6;
}

/* Speaker */
.seminar-detail-speaker {
    display: flex;
    gap: 18px;
    align-items: flex-start;
    background: #f5f7fa;
    border-radius: 10px;
    padding: 20px;
}
.seminar-detail-speaker-avatar {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    background: #e8f1fb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2e7bc6;
    font-size: 1.5rem;
}
.seminar-detail-speaker-name {
    display: block;
    font-size: 1rem;
    color: #0f2a44;
    margin-bottom: 6px;
}
.seminar-detail-speaker-bio {
    font-size: 0.88rem;
    color: #5a6b7a;
    line-height: 1.7;
    margin: 0;
}

/* Sidebar */
.seminar-detail-sidebar {
    position: sticky;
    top: 90px;
}
.seminar-detail-info {
    background: #fff;
    border-radius: 14px;
    padding: 24px;
    box-shadow: 0 2px 10px rgba(15,42,68,0.06);
    border-top: 4px solid #ff3008;
}
.seminar-detail-info-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #0f2a44;
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #e6ecf2;
}
.seminar-detail-info-list {
    margin: 0 0 20px;
}
.seminar-detail-info-list dt {
    font-size: 0.78rem;
    color: #2e7bc6;
    font-weight: 600;
    margin-top: 12px;
    letter-spacing: 0.06em;
}
.seminar-detail-info-list dt:first-child {
    margin-top: 0;
}
.seminar-detail-info-list dd {
    font-size: 0.92rem;
    color: #38495a;
    line-height: 1.6;
    margin: 4px 0 0;
}
.seminar-detail-price {
    color: #ff3008;
    font-weight: 700;
    font-size: 1.05rem;
}
.seminar-detail-cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 16px;
    background: #ff3008;
    color: #fff;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.98rem;
    text-decoration: none;
    transition: background 0.2s, transform 0.2s;
}
.seminar-detail-cta-btn:hover,
.seminar-detail-cta-btn:focus {
    background: #d92804;
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
}
.seminar-detail-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 14px;
    color: #5a6b7a;
    font-size: 0.88rem;
    text-decoration: none;
    width: 100%;
    justify-content: center;
}
.seminar-detail-back:hover {
    color: #ff3008;
    text-decoration: none;
}

/* Responsive */
@media (max-width: 900px) {
    .seminar-detail-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .seminar-detail-sidebar {
        position: static;
    }
}
@media (max-width: 768px) {
    .seminar-detail-hero {
        padding: 50px 0 40px;
        min-height: 300px;
    }
    .seminar-detail-title {
        font-size: 1.45em;
    }
    .seminar-detail-lead {
        font-size: 0.92rem;
    }
    .seminar-detail-body {
        padding: 24px 20px;
    }
    .seminar-detail-h2 {
        font-size: 1.12rem;
    }
    .seminar-detail-timeline::before {
        left: 80px;
    }
    .seminar-detail-timeline li::before {
        left: 75px;
    }
    .seminar-detail-time {
        width: 70px;
        font-size: 0.78rem;
    }
    .seminar-detail-timeline li > div {
        padding-left: 22px;
    }
}