/* ============================================
   SESSIONS PAGE SPECIFIC STYLES
   ============================================ */

/* Page Header */
.page-header {
    min-height: 60vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 120px 2rem 4rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.05));
}

.page-header-content {
    max-width: 800px;
    animation: fadeInUp 1s ease;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-dim);
    text-decoration: none;
    font-size: 0.95rem;
    margin-bottom: 2rem;
    padding: 10px 20px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    transition: all 0.3s ease;
}

.back-link:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--accent);
    color: var(--primary);
    transform: translateX(-5px);
}

.page-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    margin: 1rem 0;
    background: linear-gradient(135deg, var(--primary), var(--text-dim));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-subtitle {
    color: var(--text-dim);
    font-size: 1.2rem;
    line-height: 1.8;
}

/* Sessions Page Container */
.sessions-page {
    max-width: 1400px;
    min-width: 70%;
    margin: 0 auto;
    padding: 2rem 2rem 4rem;
}

/* Filter Tabs */
.session-filters {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    padding: 0 2rem;
}

.filter-btn {
    padding: 12px 24px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    color: var(--text-dim);
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
}

.filter-btn:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--accent);
    color: var(--primary);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

/* Sessions Grid */
.sessions-grid {
    display: grid;
    gap: 2rem;
    padding: 0 2rem;
}

.sessions-grid h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
}

.sessions-grid-content {
    text-align: center;
    padding: 4rem 0;
}

.sessions-grid .section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.sessions-grid .section-subtitle {
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto 2rem auto;
    color: var(--text-dim);
    line-height: 1.8;
}

.sessions-grid .btn-primary {
    display: block;
    margin: 2rem auto 0;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, var(--accent), #ff6b6b);
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(255, 0, 64, 0.3);
    max-width: 250px;
    text-align: center;
}

.sessions-grid .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(255, 0, 64, 0.4);
}

.sessions-grid .section-background {
    background: rgb(248, 242, 228);
}

/* Session Card */
.session-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

.session-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.session-card:hover::before {
    transform: scaleX(1);
}

.session-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px var(--shadow);
    border-color: var(--accent);
}

.session-content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: start;
    padding: 2rem;
}

/* Time Badge */
.session-time {
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: white;
    padding: 1rem;
    border-radius: 15px;
    text-align: center;
    min-width: 120px;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.session-time .time {
    font-size: 1.5rem;
    font-weight: 800;
    display: block;
    margin-bottom: 0.3rem;
}

.session-time .duration {
    font-size: 0.85rem;
    opacity: 0.9;
}

/* Session Info */
.session-info {
    flex: 1;
}

.session-category {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(102, 126, 234, 0.15);
    color: var(--accent);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
}

.session-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.session-abstract {
    color: var(--text-dim);
    line-height: 1.8;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 5; /* show 5 lines by default */
    overflow: hidden;
}

/* Expanded state shows full abstract */
.session-card.expanded .session-abstract {
    display: block;
    -webkit-line-clamp: initial;
    overflow: visible;
    /* Keep the same measure as collapsed state to avoid line-length shift */
}

/* Ensure minimal line gap between paragraphs inside session abstracts */
.session-abstract p {
    margin: 0 0 0.4rem; /* minimal bottom gap */
}
.session-abstract p:last-child {
    margin-bottom: 0; /* no extra space after the last paragraph */
}

.read-more {
    background: transparent;
    border: none;
    color: var(--accent);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    padding: 0;
    margin: 0.25rem 0 1.25rem 0;
    user-select: none;
    text-decoration: none;
    white-space: nowrap; /* keep inline text on a single line */
    line-height: 1.8;
}


.read-more:hover,
.read-more:focus {
    text-decoration: underline;
}

.read-more::after {
    content: ' →';
}

.session-card.expanded .read-more::after {
    content: ' ↑';
}


/* Speaker Info */
.session-speaker {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
    margin-top: 1.5rem;
    cursor: pointer; /* Make it clear it's clickable */
    user-select: none;
    transition: transform 0.2s ease;
}

/* Larger avatar size for better visibility on Sessions page */
.speaker-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.35);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

/* Explicit large variant if used elsewhere */
.speaker-avatar-large {
    width: 88px;
    height: 88px;
}

/* Hover and focus effects to encourage clicking for bio */
.session-speaker:hover .speaker-avatar,
.session-speaker:focus-visible .speaker-avatar {
    transform: scale(1.06);
    box-shadow: 0 10px 24px rgba(102, 126, 234, 0.5);
    border-color: #8ea2ff;
}

.session-speaker:focus-visible {
    outline: 3px solid rgba(102, 126, 234, 0.5);
    outline-offset: 4px;
    border-radius: 14px;
}

.speaker-details {
    flex: 1;
}

.speaker-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.3rem;
}

.speaker-role {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.session-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.tag {
    padding: 6px 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--text-dim);
    transition: all 0.3s ease;
}

.tag:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

/* Track Colors */
.session-card[data-track="keynote"] .session-time {
    background: linear-gradient(135deg, #f093fb, #f5576c);
}

.session-card[data-track="keynote"] .session-category {
    background: rgba(240, 147, 251, 0.15);
    color: #f093fb;
}

.session-card[data-track="technical"] .session-time {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.session-card[data-track="workshop"] .session-time {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
}

.session-card[data-track="workshop"] .session-category {
    background: rgba(79, 172, 254, 0.15);
    color: #4facfe;
}

.session-card[data-track="panel"] .session-time {
    background: linear-gradient(135deg, #43e97b, #38f9d7);
}

.session-card[data-track="panel"] .session-category {
    background: rgba(67, 233, 123, 0.15);
    color: #43e97b;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-dim);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.empty-state p {
    color: var(--text-muted);
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
}

/* Responsive Styles */
@media (max-width: 968px) {
    .session-content {
        grid-template-columns: 1fr;
    }

    .session-time {
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 1.5rem;
    }

    .session-time .time,
    .session-time .duration {
        display: inline;
    }

    .page-header {
        min-height: 50vh;
        padding: 100px 2rem 3rem;
    }
}

@media (max-width: 768px) {
    .sessions-page {
        padding: 2rem 0 4rem;
    }

    .sessions-grid {
        padding: 0 1rem;
    }

    .session-filters {
        padding: 0 1rem;
    }

    .session-title {
        font-size: 1.5rem;
    }

    .session-speaker {
        flex-direction: column;
        align-items: flex-start;
    }

    .filter-btn {
        padding: 10px 18px;
        font-size: 0.85rem;
    }

    .page-header {
        padding: 80px 1rem 2rem;
    }

    .page-title {
        font-size: 2rem;
    }

    .page-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .session-card {
        border-radius: 16px;
    }

    .session-content {
        padding: 1.5rem;
    }

    .session-time {
        min-width: auto;
        border-radius: 12px;
    }

    .session-time .time {
        font-size: 1.2rem;
    }

    .session-title {
        font-size: 1.3rem;
    }

    .speaker-avatar {
        width: 50px;
        height: 50px;
    }

    .session-filters {
        gap: 0.5rem;
    }
}

/* ============================================
   COMING SOON CARD (Sessions page) - alignment fix
   ============================================ */
.session-card.coming-soon {
    cursor: default;
}
.session-card.coming-soon .session-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
}
.session-card.coming-soon .session-info {
    max-width: 720px;
}
.session-card.coming-soon .session-category {
    margin-left: auto;
    margin-right: auto;
}

[data-theme="dark"] .sessions-grid .section-background {
    background: #2c2c2c;
}


/* Background fade removed as requested */
.session-abstract::after {
    content: none;
    display: none;
}