* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 진행중 아이콘 펄스 애니메이션 */
@keyframes pulse-dot {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.trading-status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: white;
    border-radius: 50%;
    margin-right: 6px;
    animation: pulse-dot 1.5s ease-in-out infinite;
    vertical-align: middle;
}

:root {
    --primary-color: #f0b90b;
    --secondary-color: #1e2329;
    --bg-color: #000000;
    --card-bg: #1a1a1a;
    --text-primary: #eaecef;
    --text-secondary: #848e9c;
    --border-color: #2b3139;
    --success-color: #0ecb81;
    --danger-color: #f6465d;
    --warning-color: #f0b90b;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

header h1 {
    color: var(--primary-color);
    font-size: 28px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--success-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.tab-btn {
    padding: 12px 24px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s;
}

.tab-content.active {
    display: block;
}

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

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.section-header h2 {
    color: var(--text-primary);
    font-size: 24px;
}

.controls {
    display: flex;
    gap: 10px;
}

.controls input,
.controls select {
    padding: 8px 12px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 14px;
}

.controls input:focus,
.controls select:focus {
    outline: none;
    border-color: var(--primary-color);
}

button {
    padding: 8px 16px;
    background: var(--primary-color);
    color: var(--secondary-color);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
}

button:hover {
    background: #d4a309;
    transform: translateY(-1px);
}

.btn-primary {
    background: var(--success-color);
    color: white;
    padding: 12px 24px;
    font-size: 16px;
    width: 100%;
}

.btn-primary:hover {
    background: #0db870;
}

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

.btn-danger:hover {
    background: #e4354a;
}

.table-container {
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    overflow-x: auto;
}

/* 게시판 목록 컨테이너는 배경 제거 */
#boards-list.table-container {
    background: transparent;
    border: none;
    padding: 0;
}

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

thead {
    background: var(--bg-color);
}

th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

tbody tr:hover {
    background: rgba(240, 185, 11, 0.05);
}

.loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 40px !important;
}

.trading-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.trading-form {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.trading-form h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.orders-section,
.positions-section {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
}

.orders-section h3,
.positions-section h3 {
    margin-bottom: 16px;
    color: var(--text-primary);
}

.account-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.account-card {
    background: var(--card-bg);
    padding: 24px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.account-card h2 {
    margin-bottom: 16px;
    color: var(--text-primary);
}

.positive {
    color: var(--success-color);
}

.negative {
    color: var(--danger-color);
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.badge.spot {
    background: rgba(14, 203, 129, 0.2);
    color: var(--success-color);
}

.badge.futures {
    background: rgba(240, 185, 11, 0.2);
    color: var(--primary-color);
}

.alert {
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 16px;
    display: none;
}

.alert.show {
    display: block;
}

.alert.success {
    background: rgba(14, 203, 129, 0.2);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

.alert.error {
    background: rgba(246, 70, 93, 0.2);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

/* ==================== 게시판 스타일 ==================== */

.boards-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    color: var(--text-secondary);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(240, 185, 11, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.boards-loading p {
    font-size: 16px;
    margin-top: 12px;
}

.boards-empty,
.boards-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    text-align: center;
}

.empty-icon,
.error-icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.6;
}

.boards-empty h3,
.boards-error h3 {
    color: var(--text-primary);
    font-size: 20px;
    margin-bottom: 12px;
}

.boards-empty p,
.boards-error p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

.retry-btn {
    padding: 10px 24px;
    background: var(--primary-color);
    color: #000;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.retry-btn:hover {
    background: #d4a309;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(240, 185, 11, 0.3);
}

.boards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    padding: 24px;
}

.board-card {
    background: linear-gradient(135deg, #1a1a1a 0%, #2b3139 100%);
    border: 1px solid #2b3139;
    border-radius: 16px;
    padding: 28px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    min-height: 200px;
    display: flex;
    flex-direction: column;
}

.board-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(240, 185, 11, 0.05) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.4s;
}

.board-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 12px 32px rgba(240, 185, 11, 0.2);
}

.board-card:hover::before {
    opacity: 1;
}

.board-card-gradient {
    position: absolute;
    top: 0;
    right: 0;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(240, 185, 11, 0.15) 0%, transparent 70%);
    border-radius: 0 16px 0 100%;
    pointer-events: none;
}

.board-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.board-card-title {
    color: var(--primary-color);
    font-size: 24px;
    font-weight: 700;
    margin: 0;
    line-height: 1.3;
    flex: 1;
    letter-spacing: -0.5px;
}

.board-card-badge {
    background: rgba(240, 185, 11, 0.2);
    color: var(--primary-color);
    padding: 8px 14px;
    border-radius: 24px;
    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
    margin-left: 12px;
    border: 1px solid rgba(240, 185, 11, 0.3);
    backdrop-filter: blur(10px);
}

.board-card-description {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin: 0 0 24px 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    position: relative;
    z-index: 1;
    flex: 1;
}

.board-card-footer {
    display: flex;
    align-items: center;
    color: #667eea;
    font-size: 14px;
    font-weight: 600;
    margin-top: auto;
    position: relative;
    z-index: 1;
    transition: all 0.3s;
}

.board-card:hover .board-card-footer {
    color: var(--primary-color);
    transform: translateX(4px);
}

.board-card-link {
    margin-right: 8px;
}

.board-card-footer svg {
    transition: transform 0.3s;
}

.board-card:hover .board-card-footer svg {
    transform: translateX(4px);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .boards-grid {
        grid-template-columns: 1fr;
        gap: 16px;
        padding: 16px;
    }
    
    .board-card {
        padding: 20px;
        min-height: 180px;
    }
    
    .board-card-title {
        font-size: 20px;
    }
}

@media (max-width: 1024px) {
    .trading-section,
    .account-section {
        grid-template-columns: 1fr;
    }
}