/* ========================================
   ICMT Program - Frontend Enhanced Styles
   ======================================== */

/* Enhanced Grid Layout */
.icmt-program-enhanced {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Year Tabs */
.icmt-year-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid #e0e0e0;
    overflow-x: auto;
}

.icmt-year-tab {
    padding: 12px 24px;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    color: #666;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.icmt-year-tab:hover {
    color: #2271b1;
}

.icmt-year-tab.active {
    color: #2271b1;
    border-bottom-color: #2271b1;
}

/* Day Tabs */
.icmt-day-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.icmt-day-tab {
    padding: 10px 20px;
    background: #f6f7f7;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: #646970;
    transition: all 0.3s ease;
}

.icmt-day-tab:hover {
    background: #e8f4f8;
    border-color: #2271b1;
    color: #2271b1;
}

.icmt-day-tab.active {
    background: #2271b1;
    border-color: #2271b1;
    color: #fff;
}

/* Enhanced Session Cards */
.icmt-session-enhanced {
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.icmt-session-enhanced:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.icmt-session-enhanced.virtual {
    border-left: 5px solid var(--col-live, #2D8CFF);
}

.icmt-session-enhanced.presential {
    border-left: 5px solid #00a32a;
}

.icmt-session-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 15px;
}

.icmt-session-info {
    flex: 1;
}

.icmt-session-actions {
    display: flex;
    gap: 8px;
}

.icmt-session-title-enhanced {
    font-size: 20px;
    font-weight: 700;
    color: var(--col-session, #111);
    margin-bottom: 8px;
}

.icmt-session-meta {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    font-size: 14px;
    color: #646970;
}

.icmt-session-meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.icmt-session-meta-item .dashicons {
    font-size: 16px;
}

/* Enhanced Papers List */
.icmt-papers-enhanced {
    list-style: none;
    margin: 0;
    padding: 0;
}

.icmt-paper-enhanced {
    padding: 15px;
    margin-bottom: 10px;
    background: #f9f9f9;
    border-left: 3px solid #c3c4c7;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.icmt-paper-enhanced:hover {
    background: #f0f0f1;
    border-left-color: var(--col-pid, #F59B23);
}

.icmt-paper-enhanced.virtual {
    border-left-color: var(--col-live, #2D8CFF);
}

.icmt-paper-enhanced.presential {
    border-left-color: #00a32a;
}

.icmt-paper-header {
    display: flex;
    align-items: start;
    gap: 10px;
    margin-bottom: 8px;
}

.icmt-paper-checkbox {
    margin-top: 3px;
}

.icmt-paper-id-enhanced {
    font-weight: 700;
    color: var(--col-pid, #F59B23);
    font-size: 14px;
}

.icmt-paper-title-enhanced {
    flex: 1;
    font-weight: 600;
    color: var(--col-ptitle, #111);
    font-size: 15px;
}

.icmt-paper-mode-badge {
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.icmt-paper-mode-badge.virtual {
    background: #e8f4f8;
    color: #2D8CFF;
}

.icmt-paper-mode-badge.presential {
    background: #e6f4ea;
    color: #00a32a;
}

.icmt-paper-authors-enhanced {
    font-size: 13px;
    color: var(--col-pauth, #555);
    font-style: italic;
    margin-left: 30px;
}

.icmt-paper-country-enhanced {
    color: var(--col-pcountry, #777);
}

/* Action Buttons */
.icmt-action-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid #e0e0e0;
}

.icmt-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: #2271b1;
    color: #fff;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s ease;
}

.icmt-btn:hover {
    background: #135e96;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.icmt-btn.secondary {
    background: #fff;
    color: #2271b1;
    border: 1px solid #2271b1;
}

.icmt-btn.secondary:hover {
    background: #f0f0f1;
}

.icmt-btn .dashicons {
    font-size: 18px;
}

/* iCal Selection */
.icmt-ical-selection {
    background: #f6f7f7;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    padding: 20px;
    margin-top: 30px;
}

.icmt-ical-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.icmt-ical-title {
    font-size: 16px;
    font-weight: 600;
}

.icmt-ical-actions {
    display: flex;
    gap: 10px;
}

.icmt-selected-count {
    padding: 5px 10px;
    background: #2271b1;
    color: #fff;
    border-radius: 3px;
    font-size: 13px;
    font-weight: 600;
}

/* Filters */
.icmt-filters {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 30px;
    padding: 20px;
    background: #f6f7f7;
    border-radius: 4px;
}

.icmt-filter-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.icmt-filter-group label {
    font-size: 13px;
    font-weight: 600;
    color: #646970;
}

.icmt-filter-group select,
.icmt-filter-group input {
    padding: 8px 12px;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    font-size: 14px;
}

/* Search */
.icmt-search {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.icmt-search input {
    width: 100%;
    padding: 10px 40px 10px 15px;
    border: 1px solid #c3c4c7;
    border-radius: 4px;
    font-size: 14px;
}

.icmt-search .search-icon {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #8c8f94;
}

/* Loading State */
.icmt-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999999;
}

.icmt-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #f3f3f3;
    border-top: 5px solid #2271b1;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Print Styles */
@media print {
    .icmt-year-tabs,
    .icmt-day-tabs,
    .icmt-filters,
    .icmt-action-buttons,
    .icmt-ical-selection,
    .icmt-session-actions,
    .icmt-paper-checkbox {
        display: none !important;
    }
    
    .icmt-program-enhanced {
        max-width: 100%;
        padding: 0;
    }
    
    .icmt-session-enhanced {
        page-break-inside: avoid;
        border: 1px solid #000;
        margin-bottom: 10px;
    }
    
    .icmt-paper-enhanced {
        page-break-inside: avoid;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .icmt-program-enhanced {
        padding: 10px;
    }
    
    .icmt-session-header {
        flex-direction: column;
    }
    
    .icmt-session-actions {
        width: 100%;
        justify-content: flex-start;
    }
    
    .icmt-filters {
        flex-direction: column;
    }
    
    .icmt-filter-group {
        width: 100%;
    }
    
    .icmt-action-buttons {
        flex-direction: column;
    }
    
    .icmt-btn {
        width: 100%;
        justify-content: center;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .icmt-program-enhanced {
        color: #e0e0e0;
    }
    
    .icmt-session-enhanced {
        background: #1e1e1e;
        border-color: #3a3a3a;
    }
    
    .icmt-paper-enhanced {
        background: #2a2a2a;
    }
    
    .icmt-filters {
        background: #2a2a2a;
    }
    
    .icmt-filter-group select,
    .icmt-filter-group input,
    .icmt-search input {
        background: #1e1e1e;
        border-color: #3a3a3a;
        color: #e0e0e0;
    }
}

/* Accessibility */
.icmt-btn:focus,
.icmt-day-tab:focus,
.icmt-year-tab:focus {
    outline: 2px solid #2271b1;
    outline-offset: 2px;
}

.icmt-paper-checkbox:focus {
    outline: 2px solid #2271b1;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.icmt-session-enhanced,
.icmt-paper-enhanced {
    animation: fadeIn 0.3s ease;
}

/* Tooltips */
.icmt-tooltip-enhanced {
    position: relative;
    display: inline-block;
}

.icmt-tooltip-enhanced .tooltip-text {
    visibility: hidden;
    background-color: #1d2327;
    color: #fff;
    text-align: center;
    border-radius: 4px;
    padding: 8px 12px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 12px;
    white-space: nowrap;
}

.icmt-tooltip-enhanced:hover .tooltip-text {
    visibility: visible;
    opacity: 1;
}