/* ===== CSS Variables ===== */
:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #252542;
    --bg-card: #1e1e35;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b8;
    --text-muted: #6b6b80;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border-color: rgba(255, 255, 255, 0.08);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition: all 0.2s ease;
    --side-panel-width: 320px;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* ===== Header ===== */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1800px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo h1 {
    font-size: 1.1rem;
    font-weight: 600;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-stats {
    display: flex;
    gap: 1.5rem;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.group-select {
    min-width: 120px;
    font-size: 0.85rem;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-success {
    background: var(--success);
    color: white;
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-small {
    padding: 0.35rem 0.7rem;
    font-size: 0.8rem;
}

.btn-icon {
    font-size: 0.9rem;
}

/* ===== Main Wrapper with Side Panel ===== */
.main-wrapper {
    display: flex;
    flex: 1;
    position: relative;
}

.main {
    flex: 1;
    padding: 1.25rem 1.5rem;
    max-width: 1800px;
    margin: 0 auto;
    width: 100%;
    transition: margin-right 0.3s ease;
}

.main.with-panel {
    margin-right: var(--side-panel-width);
}

/* ===== Side Panel ===== */
.side-panel {
    position: fixed;
    right: -350px;
    top: 60px;
    width: var(--side-panel-width);
    height: calc(100vh - 60px);
    background: var(--bg-card);
    border-left: 1px solid var(--border-color);
    transition: right 0.3s ease;
    z-index: 90;
    overflow-y: auto;
}

.side-panel.open {
    right: 0;
}

.side-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: var(--bg-card);
}

.side-panel-header h3 {
    font-size: 1rem;
}

.close-btn {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    background: var(--danger);
    color: white;
}

.side-panel-content {
    padding: 1rem;
}

.keyword-section {
    margin-bottom: 1.5rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1rem;
}

.keyword-section h4 {
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

.group-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.group-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.group-tag:hover {
    border-color: var(--accent-primary);
}

.group-tag.active {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.keyword-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.75rem;
}

.keyword-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.6rem;
    background: var(--bg-secondary);
    border-radius: 16px;
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
}

.keyword-tag .remove-btn {
    width: 16px;
    height: 16px;
    border: none;
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
}

.keyword-tag .remove-btn:hover {
    background: var(--danger);
    color: white;
}

.keyword-input-row {
    display: flex;
    gap: 0.5rem;
}

.keyword-input-row .input {
    flex: 1;
    min-width: auto;
    padding: 0.4rem 0.75rem;
    font-size: 0.85rem;
}

/* ===== Tabs ===== */
.tabs {
    display: flex;
    gap: 0.25rem;
    background: var(--bg-secondary);
    padding: 0.3rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1rem;
    width: fit-content;
}

.tab {
    padding: 0.6rem 1.25rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
}

.tab:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

.tab.active {
    background: var(--accent-gradient);
    color: white;
}

/* ===== Filters ===== */
.filters {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.filter-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.filter-group label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.input,
.select {
    padding: 0.5rem 0.85rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.85rem;
    min-width: 160px;
    transition: var(--transition);
}

.input:focus,
.select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.checkbox-group {
    flex-direction: row;
    align-items: center;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: none;
}

.checkbox-group input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-primary);
}

/* ===== Content Panels ===== */
.content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.panel {
    display: none;
    padding: 1rem;
}

.panel.active {
    display: block;
}

/* ===== Table ===== */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    background: var(--bg-tertiary);
    padding: 0.75rem;
    text-align: left;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    white-space: nowrap;
}

.table td {
    padding: 0.85rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
    vertical-align: middle;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background: var(--bg-tertiary);
}

.table .loading {
    text-align: center;
    padding: 2.5rem;
    color: var(--text-muted);
}

.bid-title {
    max-width: 320px;
}

.bid-title a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.bid-title a:hover {
    color: var(--accent-primary);
}

.amount {
    font-weight: 600;
    color: var(--accent-secondary);
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 16px;
    font-size: 0.7rem;
    font-weight: 500;
}

.badge-active {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge-closing {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.badge-closed {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.badge-service {
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-primary);
}

.badge-goods {
    background: rgba(139, 92, 246, 0.15);
    color: var(--accent-secondary);
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 0 0.5rem;
}

.pagination button {
    padding: 0.4rem 0.85rem;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition);
}

.pagination button:hover:not(:disabled) {
    background: var(--accent-primary);
    color: white;
    border-color: var(--accent-primary);
}

.pagination button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination .page-info {
    padding: 0.4rem 0.85rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 200;
    justify-content: center;
    align-items: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.1rem;
}

.modal-body {
    padding: 1.25rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.form-group .input {
    width: 100%;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.modal-actions .btn {
    flex: 1;
    justify-content: center;
}

.modal-lg {
    max-width: 800px;
}

.modal-lg .modal-body,
.modal-xl .modal-body {
    max-height: 70vh;
    overflow-y: auto;
}

.modal-xl {
    max-width: 1100px;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.similar-info {
    background: var(--bg-tertiary);
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    font-size: 0.85rem;
}

/* Log Viewer Styles */
.log-controls {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.log-viewer {
    background: #1e1e2e;
    color: #e0e0e0;
    padding: 1rem;
    border-radius: var(--radius-md);
    height: 400px;
    overflow-y: auto;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.85rem;
    white-space: pre-wrap;
    line-height: 1.4;
}

.similar-info strong {
    color: var(--accent-primary);
}

.similar-info .keywords {
    margin-top: 0.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.similar-info .keyword-chip {
    background: var(--bg-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: 10px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.btn-history {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    background: var(--bg-tertiary);
    color: var(--accent-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.btn-history:hover {
    background: var(--accent-secondary);
    color: white;
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    padding: 0.85rem 1.25rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 1000;
    font-size: 0.9rem;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--danger);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }

    .header-stats {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: 0.5rem;
    }

    .tabs {
        width: 100%;
        overflow-x: auto;
    }

    .filter-row {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group {
        width: 100%;
    }

    .input,
    .select {
        width: 100%;
        min-width: auto;
    }

    .side-panel {
        width: 100%;
        right: -100%;
    }

    .main.with-panel {
        margin-right: 0;
    }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}