/* =====================================================
   CHAT SEARCH INTERFACE - TELEGRAM INSPIRED DESIGN
   ===================================================== */

/* Search Interface Container */
.chat-search-interface {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #FDFCFA; /* 使用品牌极浅背景色 */
    z-index: 10001;
    display: flex;
    flex-direction: column;
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

.chat-search-interface.active {
    transform: translateY(0);
}

/* Search Header */
.search-header {
    background: rgba(248, 249, 250, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 0.5px solid rgba(142, 142, 147, 0.2);
    padding: 8px 16px;
    padding-top: max(8px, env(safe-area-inset-top));
    min-height: 56px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.search-input-container {
    flex: 1;
    position: relative;
    background: rgba(255, 209, 220, 0.15); /* 使用品牌淡粉色 */
    border-radius: 10px;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
    border: 1px solid rgba(255, 59, 48, 0.1);
}

.search-input-container:focus-within {
    background: rgba(255, 59, 48, 0.05); /* 使用品牌主色 */
    box-shadow: 0 0 0 1px rgba(255, 59, 48, 0.3);
    border-color: rgba(255, 59, 48, 0.4);
}

.search-input-container .search-icon {
    width: 16px;
    height: 16px;
    color: #6A5ACD; /* 使用品牌紫色点缀 */
    flex-shrink: 0;
    transition: color 0.2s ease;
}

.search-input-container:focus-within .search-icon {
    color: #FF3B30; /* 焦点时使用品牌主红色 */
}

.search-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 16px;
    color: #1C1C1E;
    outline: none;
    padding: 0;
    font-family: inherit;
}

.search-input::placeholder {
    color: rgba(60, 60, 67, 0.6);
    font-weight: 400;
}

.search-clear-btn {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: rgba(142, 142, 147, 0.6);
    border: none;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.search-clear-btn.visible {
    display: flex;
}

.search-clear-btn:hover {
    background: rgba(142, 142, 147, 0.8);
    transform: scale(1.1);
}

.search-clear-btn:active {
    transform: scale(0.9);
}

.search-clear-btn svg {
    width: 12px;
    height: 12px;
    color: white;
}

.search-cancel-btn {
    background: none;
    border: none;
    color: #FF3B30; /* 使用品牌主红色 */
    font-size: 16px;
    font-weight: 500;
    padding: 8px 0;
    cursor: pointer;
    flex-shrink: 0;
    font-family: inherit;
    transition: opacity 0.2s ease;
    min-width: 50px;
    text-align: center;
}

.search-cancel-btn:hover {
    opacity: 0.7;
}

.search-cancel-btn:active {
    opacity: 0.5;
}

/* Search Filters */
.search-filters {
    background: rgba(248, 249, 250, 0.95);
    border-bottom: 0.5px solid rgba(142, 142, 147, 0.2);
    padding: 8px 16px;
    display: flex;
    gap: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.search-filters::-webkit-scrollbar {
    display: none;
}

.search-filter-chip {
    background: rgba(118, 118, 128, 0.12);
    border: none;
    border-radius: 16px;
    padding: 6px 12px;
    font-size: 14px;
    color: #1C1C1E;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: all 0.2s ease;
    font-family: inherit;
    font-weight: 500;
}

.search-filter-chip:hover {
    background: rgba(118, 118, 128, 0.16);
}

.search-filter-chip.active {
    background: #FF3B30; /* 使用品牌主红色 */
    color: white;
    transform: scale(1.02);
    box-shadow: 0 2px 8px rgba(255, 59, 48, 0.25);
}

.search-filter-chip:active {
    transform: scale(0.95);
}

/* Search Results Container */
.search-results-container {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    background: #FFFFFF; /* 使用品牌卡片背景色 */
    position: relative;
}

.search-results-list {
    padding: 0;
    margin: 0;
    list-style: none;
    padding-bottom: 20px;
}

/* Search Result Item */
.search-result-item {
    border-bottom: 0.5px solid rgba(142, 142, 147, 0.2);
    padding: 14px 16px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    position: relative;
}

.search-result-item:hover {
    background: rgba(0, 0, 0, 0.04);
}

.search-result-item:active {
    background: rgba(0, 0, 0, 0.08);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-right: 40px; /* Leave space for navigation arrow */
}

.search-result-message {
    font-size: 16px;
    line-height: 1.35;
    color: #1C1C1E;
    word-break: break-word;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    margin-bottom: 2px;
}

.search-result-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
}

.search-result-sender {
    font-size: 13px;
    color: #FF3B30; /* 使用品牌主红色 */
    font-weight: 500;
    flex-shrink: 0;
}

.search-result-time {
    font-size: 13px;
    color: #555; /* 使用品牌浅灰文字 */
    flex-shrink: 0;
}

.search-result-context {
    font-size: 14px;
    color: #555; /* 使用品牌浅灰文字 */
    margin-top: 4px;
    line-height: 1.3;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

/* Search Highlight */
.search-highlight {
    background: rgba(255, 209, 220, 0.8); /* 使用品牌淡粉色作为高亮背景 */
    color: #2c3e50; /* 使用品牌深色文字 */
    padding: 2px 4px;
    border-radius: 4px;
    font-weight: 600;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
    border: 1px solid rgba(255, 59, 48, 0.2); /* 添加品牌色边框 */
}

/* Search States */
.search-empty-state,
.search-loading-state,
.search-error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    text-align: center;
    color: rgba(60, 60, 67, 0.6);
    min-height: 300px;
}

.search-empty-state .search-empty-icon,
.search-loading-state .search-loading-icon,
.search-error-state .search-error-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    opacity: 0.25;
    color: rgba(142, 142, 147, 0.4);
}

.search-empty-state .search-empty-text,
.search-loading-state .search-loading-text,
.search-error-state .search-error-text {
    font-size: 18px;
    color: rgba(60, 60, 67, 0.8);
    margin-bottom: 8px;
    font-weight: 600;
}

.search-empty-state .search-empty-subtitle,
.search-loading-state .search-loading-subtitle,
.search-error-state .search-error-subtitle {
    font-size: 15px;
    color: rgba(60, 60, 67, 0.6);
    line-height: 1.4;
    max-width: 280px;
}

/* Search Loading Animation */
.search-loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 209, 220, 0.3); /* 使用品牌淡粉色 */
    border-top-color: #FF3B30; /* 使用品牌主红色 */
    border-radius: 50%;
    animation: search-spinner 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes search-spinner {
    to {
        transform: rotate(360deg);
    }
}

/* Header Search Button - 品牌色版本 */
.header-search-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 59, 48, 0.1); /* 使用品牌主红色 */
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    z-index: 2;
}

.header-search-btn:hover {
    background: rgba(255, 59, 48, 0.15);
    transform: translateY(-50%) scale(1.05);
}

.header-search-btn:active {
    background: rgba(255, 59, 48, 0.2);
    transform: translateY(-50%) scale(0.95);
}

.header-search-btn svg {
    width: 18px;
    height: 18px;
    color: #FF3B30; /* 使用品牌主红色 */
}

@media (max-width: 768px) {
    .header-search-btn {
        width: 44px;
        height: 44px;
    }
    .header-search-btn svg {
        width: 20px;
        height: 20px;
    }
}

/* Search Result Navigation */
.search-result-navigate {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 59, 48, 0.1); /* 使用品牌主红色 */
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.2s ease;
}

.search-result-item:hover .search-result-navigate {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

.search-result-navigate:active {
    transform: translateY(-50%) scale(0.9);
    background: rgba(255, 59, 48, 0.2); /* 使用品牌主红色 */
}

.search-result-navigate svg {
    width: 14px;
    height: 14px;
    color: #FF3B30; /* 使用品牌主红色 */
}

/* Search Performance Optimizations */
.search-results-virtual-container {
    height: 100%;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* Improved search highlighting with better contrast */
.search-highlight-primary {
    background: linear-gradient(135deg, rgba(255, 212, 38, 0.9), rgba(255, 193, 7, 0.8));
    color: #1C1C1E;
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(255, 193, 7, 0.3);
}

.search-highlight-secondary {
    background: rgba(0, 122, 255, 0.15);
    color: #1C1C1E;
    padding: 1px 3px;
    border-radius: 2px;
    font-weight: 500;
}

/* Mobile search optimizations */
@media (max-width: 768px) {
    .search-header {
        padding: 8px 12px;
        padding-top: max(12px, env(safe-area-inset-top));
        min-height: 60px;
    }
    
    .search-input-container {
        padding: 10px 14px;
    }
    
    .search-input {
        font-size: 17px; /* Prevents zoom on iOS */
    }
    
    .search-result-item {
        padding: 16px 12px;
    }
    
    .search-result-content {
        margin-right: 35px;
    }
    
    .search-filters {
        padding: 10px 12px;
    }
    
    .search-quick-actions {
        padding: 12px;
    }
    
    .header-search-btn {
        right: 12px;
        width: 32px;
        height: 32px;
    }
    
    .header-search-btn svg {
        width: 16px;
        height: 16px;
    }
}

/* Large screen optimizations */
@media (min-width: 1024px) {
    .chat-search-interface {
        left: 25%;
        width: 75%;
        box-shadow: -4px 0 20px rgba(0, 0, 0, 0.1);
    }
    
    .search-result-item {
        padding: 16px 20px;
    }
    
    .search-result-content {
        margin-right: 50px;
    }
    
    .search-header {
        padding: 12px 20px;
    }
    
    .search-filters {
        padding: 10px 20px;
    }
}

/* 统一亮色配色 - 移除Dark Mode支持 */

/* Animation Enhancements */
.search-result-item {
    transform: translateY(0);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.search-result-item.entering {
    animation: searchResultEnter 0.4s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

@keyframes searchResultEnter {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Search Result Categories */
.search-result-category {
    background: rgba(242, 242, 247, 0.8);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    color: #8E8E93;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border-bottom: 0.5px solid rgba(142, 142, 147, 0.2);
    position: sticky;
    top: 56px;
    z-index: 5;
}

/* Search Performance Indicators */
.search-stats {
    padding: 8px 16px;
    background: rgba(0, 122, 255, 0.05);
    border-bottom: 0.5px solid rgba(142, 142, 147, 0.2);
    font-size: 13px;
    color: rgba(60, 60, 67, 0.6);
    text-align: center;
    font-weight: 500;
}

.search-stats .result-count {
    font-weight: 700;
    color: #007AFF;
}

.search-stats .search-time {
    color: rgba(60, 60, 67, 0.4);
    margin-left: 8px;
}

/* Search Quick Actions */
.search-quick-actions {
    padding: 12px 16px;
    background: rgba(248, 249, 250, 0.95);
    border-bottom: 0.5px solid rgba(142, 142, 147, 0.2);
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.search-quick-action {
    background: rgba(0, 122, 255, 0.1);
    color: #007AFF;
    border: none;
    border-radius: 16px;
    padding: 8px 14px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    font-weight: 500;
}

.search-quick-action:hover {
    background: rgba(0, 122, 255, 0.15);
    transform: scale(1.05);
}

.search-quick-action:active {
    transform: scale(0.95);
}

/* Scrollbar for search results */
.search-results-container::-webkit-scrollbar {
    width: 3px;
}

.search-results-container::-webkit-scrollbar-track {
    background: transparent;
}

.search-results-container::-webkit-scrollbar-thumb {
    background: rgba(142, 142, 147, 0.3);
    border-radius: 3px;
}

.search-results-container::-webkit-scrollbar-thumb:hover {
    background: rgba(142, 142, 147, 0.5);
}

/* Search no results animation */
.search-no-results {
    animation: searchNoResults 0.5s ease-out;
}

@keyframes searchNoResults {
    0% {
        opacity: 0;
        transform: scale(0.95);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.02);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Message navigation highlight - 温和的品牌色高亮（无布局跳动） */
.message.search-target-highlight {
    position: relative;
}

.message.search-target-highlight::after {
    content: none; /* 去除边框与阴影效果，遵循Telegram的轻量反馈 */
}

@keyframes msgRingIn {
    0% { opacity: 0; transform: scale(0.98); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes msgRingPulse {
    0% { box-shadow: 0 0 0 6px rgba(255, 59, 48, 0.10), 0 4px 12px rgba(255, 59, 48, 0.12); }
    50% { box-shadow: 0 0 0 10px rgba(255, 59, 48, 0.06), 0 6px 16px rgba(255, 59, 48, 0.18); }
    100% { box-shadow: 0 0 0 6px rgba(255, 59, 48, 0.08), 0 4px 12px rgba(255, 59, 48, 0.15); }
}

/* Inline focus highlight for matched text（遵循Telegram轻量反馈：仅亮度变化） */
.search-inline-focus {
    position: relative;
    display: inline;
    -webkit-box-decoration-break: clone;
    box-decoration-break: clone;
    animation: textBrightness 1500ms ease-out forwards; /* 延长时长，衔接更柔和 */
}

.search-inline-focus::before,
.search-inline-focus::after {
    content: none !important; /* 移除边框和阴影伪元素 */
}

.search-inline-focus.leave {
    animation: textBrightnessLeave 300ms ease-out forwards;
}

@keyframes textBrightness {
    0% { filter: brightness(1.35); }
    100% { filter: brightness(1); }
}

@keyframes textBrightnessLeave {
    0% { filter: brightness(1.08); }
    100% { filter: brightness(1); }
}

/* Fallback：未命中子串时对整段文本做轻微亮度脉冲 */
.search-text-pulse {
    animation: textBrightness 1300ms ease-out forwards; /* 略微延长 */
}

/* Advanced search panel */
.search-advanced-panel {
    background: rgba(248, 249, 250, 0.95);
    padding: 16px;
    border-bottom: 0.5px solid rgba(142, 142, 147, 0.2);
    display: none;
}

.search-advanced-panel.visible {
    display: block;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-date-range {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 12px;
}

.search-date-input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid rgba(142, 142, 147, 0.3);
    border-radius: 8px;
    background: rgba(118, 118, 128, 0.08);
    font-size: 15px;
    color: #1C1C1E;
    outline: none;
    font-family: inherit;
}

.search-date-input:focus {
    border-color: #007AFF;
    background: rgba(0, 122, 255, 0.05);
}