.universal-search-container {
    position: relative;
    flex: 1;
    max-width: 500px;
    margin: 0 2rem;
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.universal-search-input {
    width: 100%;
    padding: 0.625rem 2.5rem 0.625rem 2.5rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-main);
    font-size: 0.9rem;
    transition: all 0.2s;
}

.universal-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
    background: var(--color-bg-card);
}

.universal-search-input::placeholder {
    color: var(--color-text-dim);
}

.search-icon {
    position: absolute;
    left: 0.875rem;
    color: var(--color-text-dim);
    font-size: 0.875rem;
    pointer-events: none;
    z-index: 1;
}

.search-shortcut {
    position: absolute;
    right: 0.75rem;
    padding: 0.125rem 0.375rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 0.7rem;
    color: var(--color-text-dim);
    font-family: system-ui, sans-serif;
    pointer-events: none;
}

.universal-search-input:focus ~ .search-shortcut {
    display: none;
}

.search-clear-btn {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    color: var(--color-text-dim);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    transition: all 0.2s;
}

.search-clear-btn:hover {
    color: var(--color-text);
    background: var(--color-bg-elevated);
}

.search-results-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    max-height: 60vh;
    overflow-y: auto;
    z-index: 1000;
    display: none;
}

.search-results-dropdown.active {
    display: block;
    animation: searchDropdownIn 0.15s ease-out;
}

@keyframes searchDropdownIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-loading,
.search-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 2rem;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.search-results-list {
    padding: 0.5rem;
}

.search-result-group {
    margin-bottom: 0.5rem;
}

.search-result-group:last-child {
    margin-bottom: 0;
}

.search-group-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.search-group-header i {
    font-size: 0.7rem;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    color: inherit;
}

.search-result-item:hover,
.search-result-item.active {
    background: var(--color-bg-elevated);
}

.search-result-item.active {
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    margin: 0 -1px;
}

.search-result-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-sm);
    color: var(--color-primary);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.search-result-item.active .search-result-icon {
    background: var(--color-primary);
    color: white;
}

.search-result-content {
    flex: 1;
    min-width: 0;
}

.search-result-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-title mark {
    background: rgba(99, 102, 241, 0.3);
    color: inherit;
    padding: 0 2px;
    border-radius: 2px;
}

.search-result-subtitle {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.search-result-extra {
    font-size: 0.8rem;
    color: var(--color-success);
    font-weight: 600;
    flex-shrink: 0;
}

.search-result-arrow {
    color: var(--color-text-dim);
    font-size: 0.8rem;
    opacity: 0;
    transition: opacity 0.15s;
}

.search-result-item:hover .search-result-arrow,
.search-result-item.active .search-result-arrow {
    opacity: 1;
}

.search-hint {
    display: flex;
    gap: 1.5rem;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

.search-hint kbd {
    display: inline-block;
    padding: 0.125rem 0.375rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 3px;
    font-family: system-ui, sans-serif;
    font-size: 0.7rem;
    margin-right: 0.25rem;
}

.search-highlight {
    animation: highlightPulse 2s ease-out;
}

@keyframes highlightPulse {
    0% {
        background: rgba(99, 102, 241, 0.4);
        box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.3);
    }
    100% {
        background: transparent;
        box-shadow: none;
    }
}

@media (max-width: 1024px) {
    .universal-search-container {
        max-width: 300px;
        margin: 0 1rem;
    }
    
    .search-shortcut {
        display: none;
    }
}

@media (max-width: 768px) {
    .universal-search-container {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        max-width: none;
        margin: 0;
        padding: 1rem;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        z-index: 200;
        display: none;
    }
    
    .universal-search-container.mobile-active {
        display: block;
    }
    
    .search-results-dropdown {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        max-height: calc(100vh - 60px);
        border-radius: 0;
        border-left: none;
        border-right: none;
    }
    
    .nav-links {
        padding-right: 3rem;
    }
}