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

:root {
    --bg-primary: #0b0e11;
    --bg-secondary: #161a1e;
    --bg-tertiary: #1e2329;
    --bg-hover: #2b3139;
    --border-color: #2b3139;
    --text-primary: #eaecef;
    --text-secondary: #848e9c;
    --text-tertiary: #5e6673;
    --accent-color: #fcd535;
    --green: #0ecb81;
    --red: #f6465d;
    --blue: #2962ff;
    --header-height: 60px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
}

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

/* Header */
.header {
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    gap: 20px;
}

.header-left,
.header-center,
.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-color);
}

.logo svg {
    color: var(--accent-color);
}

.market-selector {
    display: flex;
    gap: 5px;
    background: var(--bg-primary);
    padding: 4px;
    border-radius: 6px;
}

.btn-market {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-market:hover {
    background: var(--bg-hover);
}

.btn-market.active {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.btn-screener {
    display: flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: 10px;
}

.btn-screener:hover {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-primary);
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    width: 300px;
}

.search-box svg {
    color: var(--text-tertiary);
}

.search-box input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 14px;
    width: 100%;
}

.btn-icon {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    position: relative;
}

.btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-layout {
    background: var(--accent-color);
    border: none;
    color: var(--bg-primary);
    width: 36px;
    height: 36px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-layout:hover {
    opacity: 0.9;
}

.badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--red);
    color: white;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 5px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* Charts Container */
.charts-container {
    flex: 1;
    display: grid;
    gap: 1px;
    background: var(--border-color);
    overflow: hidden;
}

.charts-container.layout-1x1 {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
}

.charts-container.layout-2x1 {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: 1fr;
}

.charts-container.layout-2x2 {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.charts-container.layout-3x2 {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.charts-container.layout-3x3 {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
}

.charts-container.layout-4x2 {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.chart-panel {
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 15px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
}

.chart-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.chart-symbol {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.chart-price {
    font-size: 16px;
    font-weight: 700;
}

.chart-price.up {
    color: var(--green);
}

.chart-price.down {
    color: var(--red);
}

.chart-change {
    font-size: 12px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
}

.chart-change.up {
    background: rgba(14, 203, 129, 0.1);
    color: var(--green);
}

.chart-change.down {
    background: rgba(246, 70, 93, 0.1);
    color: var(--red);
}

.chart-controls {
    display: flex;
    align-items: center;
    gap: 5px;
}

.btn-interval {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-interval:hover {
    background: var(--bg-hover);
}

.btn-interval.active {
    background: var(--accent-color);
    color: var(--bg-primary);
}

.chart-wrapper {
    flex: 1;
    position: relative;
}

.chart-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--text-tertiary);
    font-size: 14px;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: var(--header-height);
    right: 0;
    width: 300px;
    height: calc(100vh - var(--header-height));
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s;
    z-index: 100;
}

.sidebar.active {
    transform: translateX(0);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.btn-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
}

.btn-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
}

.symbol-list {
    padding: 10px;
}

.symbol-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.symbol-item:hover {
    background: var(--bg-hover);
}

.symbol-item-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.symbol-item-name {
    font-size: 14px;
    font-weight: 600;
}

.symbol-item-volume {
    font-size: 11px;
    color: var(--text-tertiary);
}

.symbol-item-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 4px;
}

.symbol-item-price {
    font-size: 14px;
    font-weight: 600;
}

.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
}

.btn-add-symbol {
    width: 100%;
    background: var(--accent-color);
    color: var(--bg-primary);
    border: none;
    padding: 10px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
}

.btn-add-symbol:hover {
    opacity: 0.9;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
}

.layout-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.layout-option {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: all 0.2s;
}

.layout-option:hover {
    background: var(--bg-hover);
    border-color: var(--accent-color);
}

.layout-option.active {
    border-color: var(--accent-color);
    background: var(--bg-hover);
}

.layout-preview {
    display: grid;
    gap: 4px;
    width: 80px;
    height: 60px;
}

.layout-option[data-layout="1x1"] .layout-preview {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
}

.layout-option[data-layout="2x1"] .layout-preview {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: 1fr;
}

.layout-option[data-layout="2x2"] .layout-preview {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.layout-option[data-layout="3x2"] .layout-preview {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.layout-option[data-layout="3x3"] .layout-preview {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
}

.layout-option[data-layout="4x2"] .layout-preview {
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 1fr);
}

.layout-cell {
    background: var(--text-tertiary);
    border-radius: 2px;
}

.layout-option span {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Alerts */
.alerts-list {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 20px;
}

.alert-item {
    background: var(--bg-tertiary);
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.alert-item-left {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.alert-item-symbol {
    font-size: 14px;
    font-weight: 600;
}

.alert-item-condition {
    font-size: 12px;
    color: var(--text-tertiary);
}

.btn-delete {
    background: transparent;
    border: 1px solid var(--red);
    color: var(--red);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-delete:hover {
    background: var(--red);
    color: white;
}

.alert-form {
    background: var(--bg-tertiary);
    border-radius: 8px;
    padding: 20px;
}

.alert-form h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-group input,
.form-group select {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px;
    border-radius: 6px;
    font-size: 14px;
    outline: none;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--accent-color);
}

.btn-primary {
    width: 100%;
    background: var(--accent-color);
    color: var(--bg-primary);
    border: none;
    padding: 12px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-tertiary);
}