/**
 * 会议列表页 - 历史会议项
 * 包含: 会议列表、会议项、元数据、操作按钮
 */

/* ========== 历史会议列表 ========== */
.meeting-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.meeting-item {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-smooth);
    cursor: pointer;
    position: relative;
    border: 1px solid var(--neutral-200);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.meeting-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--neutral-200);
}

/* 选中状态 */
.meeting-item.selected,
.meeting-item:active {
    border-color: var(--brand-primary);
    box-shadow: var(--shadow-card), 0 0 0 3px var(--brand-primary-soft);
    background: linear-gradient(135deg, #FAFAFF 0%, #F8F7FF 100%);
}

/* ========== 卡片头部 ========== */
.meeting-item-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-4);
}

.meeting-item-main {
    flex: 1;
    min-width: 0;
}

.meeting-item-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.meeting-item-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--neutral-900);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
    max-width: 100%;
}

/* 标题容器 */
.title-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

/* ========== 元数据 ========== */
.meeting-item-meta {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: 13px;
    color: var(--neutral-500);
}

.meeting-item-meta .meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.meeting-item-meta .meta-item svg {
    width: 14px;
    height: 14px;
    opacity: 0.6;
}

/* 主持人样式 */
.meeting-item-meta .meta-host {
    color: var(--neutral-600);
    font-weight: 500;
}

.meeting-item-meta .meta-host svg {
    color: var(--brand-primary);
    opacity: 0.7;
}

/* ========== 参与者头像组 ========== */
.participants-avatars {
    display: flex;
    align-items: center;
}

.avatar-circle {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--ai-gradient);
    border: 2px solid var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
    color: white;
    margin-left: -8px;
}

.avatar-circle:first-child {
    margin-left: 0;
}

.avatar-more {
    background: var(--neutral-100);
    color: var(--neutral-500);
    font-size: 9px;
}

/* ========== 数据行 ========== */
.meeting-item-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 4px;
    padding-top: var(--space-4);
    border-top: 1px solid var(--neutral-100);
}

.meeting-item-stats {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

/* ========== 数据指标 ========== */
.meeting-metrics {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-wrap: wrap;
}

.metric-tag {
    display: flex;
    align-items: baseline;
    gap: 6px;
    transition: all var(--transition-fast);
}

.metric-tag svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
    opacity: 0.7;
    position: relative;
    top: 2px;
}

.metric-tag .value {
    font-size: 15px;
    font-weight: 700;
    color: var(--neutral-800);
    font-variant-numeric: tabular-nums;
}

.metric-tag .label {
    font-size: 12px;
    font-weight: 500;
    color: var(--neutral-500);
}

/* 指标颜色 */
.metric-tag.duration svg { color: #f59e0b; }
.metric-tag.words svg { color: #10b981; }
.metric-tag.ai-points svg { color: #8b5cf6; }

.metric-tag.accuracy {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.12) 0%, rgba(59, 130, 246, 0.08) 100%);
    color: #1D4ED8;
}

.metric-tag.accuracy svg {
    color: #3B82F6;
}

/* ========== 操作按钮 ========== */
.meeting-item-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.meeting-item:hover .meeting-item-actions {
    opacity: 1;
}

.meeting-item:focus-within .meeting-item-actions {
    opacity: 1;
}

@media (hover: none), (pointer: coarse) {
    .meeting-item-actions {
        opacity: 1;
    }
}

.meeting-item-actions .btn {
    padding: 6px 12px;
    font-size: 12px;
}

/* 删除按钮 */
.btn-delete {
    background: transparent;
    color: var(--neutral-400);
    padding: 6px;
    border-radius: var(--radius-sm);
}

.btn-delete:hover {
    background: var(--color-danger-soft);
    color: var(--color-danger);
}

.btn-delete svg {
    width: 16px;
    height: 16px;
}

/* AI生成标题按钮 */
.btn.btn-ai-generate {
    position: relative;
    background: linear-gradient(135deg, #667EEA 0%, #764BA2 100%);
    border: none;
    padding: 8px;
    border-radius: var(--radius-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    flex-shrink: 0;
    box-shadow: 0 2px 4px rgba(102, 126, 234, 0.2);
}

.btn.btn-ai-generate svg {
    width: 18px;
    height: 18px;
    stroke: white;
    fill: white;
    transition: transform 0.3s;
}

.btn.btn-ai-generate:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4), 
                0 0 20px rgba(118, 75, 162, 0.3);
    background: linear-gradient(135deg, #764BA2 0%, #667EEA 100%);
}

.btn.btn-ai-generate:hover svg {
    transform: rotate(72deg);
}

.btn.btn-ai-generate:active {
    transform: scale(0.95) translateY(0);
}

/* 加载状态 */
.btn.btn-ai-generate.loading {
    pointer-events: none;
    opacity: 0.8;
}

.btn.btn-ai-generate.loading svg {
    animation: ai-spin 1s linear infinite;
}

@keyframes ai-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* 成功状态动画 */
.btn.btn-ai-generate.success {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    animation: success-pulse 0.5s ease;
}

@keyframes success-pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* Tooltip提示 */
.btn.btn-ai-generate .btn-tooltip {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) scale(0);
    background: rgba(31, 41, 55, 0.95);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn.btn-ai-generate .btn-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: rgba(31, 41, 55, 0.95);
}

.btn.btn-ai-generate:hover .btn-tooltip {
    opacity: 1;
    transform: translateX(-50%) scale(1) translateY(-2px);
}

/* 查看详情链接 */
.btn-link {
    background: transparent;
    color: var(--brand-primary);
    font-weight: 500;
    padding: 6px 10px;
}

.btn-link:hover {
    background: var(--brand-primary-soft);
    text-decoration: none;
}

/* 编辑按钮 */
.edit-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--neutral-400);
    cursor: pointer;
    opacity: 0;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.meeting-item:hover .edit-btn,
.active-meeting-card:hover .edit-btn {
    opacity: 1;
}

.edit-btn:hover {
    background: var(--brand-primary-soft);
    color: var(--brand-primary);
}

.edit-btn svg {
    width: 14px;
    height: 14px;
}

/* 导入会议徽章 + tooltip */
.imported-badge {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 5px;
    cursor: help;
    opacity: 0.75;
    transition: opacity 0.2s;
}

.imported-badge:hover {
    opacity: 1;
}

.imported-badge::before,
.imported-badge::after {
    position: absolute;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    z-index: 1000;
}

.imported-badge::before {
    content: attr(data-tooltip);
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%) translateY(4px);
    padding: 6px 10px;
    background: rgba(31, 41, 55, 0.95);
    color: white;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    border-radius: 6px;
    backdrop-filter: blur(8px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.imported-badge::after {
    content: '';
    bottom: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: rgba(31, 41, 55, 0.95);
}

.imported-badge:hover::before,
.imported-badge:hover::after {
    opacity: 1;
    visibility: visible;
}

.imported-badge:hover::before {
    transform: translateX(-50%) translateY(0);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .meeting-item-header {
        flex-direction: column;
        align-items: stretch;
    }

    .meeting-item-title {
        -webkit-line-clamp: 2;
    }

    .title-row {
        align-items: flex-start;
    }

    .meeting-item-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }

    .meeting-metrics {
        width: 100%;
        justify-content: flex-start;
    }

    /* 移动端始终显示操作按钮（无hover） */
    .meeting-item-actions {
        opacity: 1;
        align-self: stretch;
        justify-content: flex-end;
        flex-wrap: wrap;
    }

    .edit-btn {
        opacity: 1;
    }
}

@media (max-width: 480px) {
    .meeting-item-actions {
        flex-direction: row;
        opacity: 1;
    }

    .meeting-item-actions .btn {
        width: auto;
    }

    .meeting-item-actions .btn:not(.btn-ai-generate):not(.btn-delete) {
        flex: 1 1 auto;
    }
}

/* Touch devices (tablets): always show actions since hover is unavailable */
@media (hover: none) and (pointer: coarse) {
    .meeting-item-actions {
        opacity: 1;
    }

    .edit-btn {
        opacity: 1;
    }
}