:root {
    /* Colors */
    --bg-primary: #0a0e1a;
    --bg-secondary: #131824;
    --bg-tertiary: #1a1f2e;
    --bg-card: #1e2433;

    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-tertiary: #718096;

    --accent-primary: #F7931A;
    --accent-secondary: #FFB84D;

    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --success-border: rgba(16, 185, 129, 0.3);

    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --danger-border: rgba(239, 68, 68, 0.3);

    --border-color: rgba(255, 255, 255, 0.1);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

.app-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* Header */
.header {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo svg {
    filter: drop-shadow(0 0 10px rgba(247, 147, 26, 0.5));
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.coin-selector {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    transition: all var(--transition-fast);
    margin-left: var(--spacing-sm);
}

.coin-selector:hover {
    border-color: var(--accent-primary);
    background: var(--bg-card);
}

.coin-selector:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(247, 147, 26, 0.2);
}

.header-stats {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Main Content */
.main-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Section Styles */
section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Chart Section */
.chart-controls {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-tertiary);
    padding: 0.25rem;
    border-radius: var(--radius-sm);
}

.time-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

.time-btn.active {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: 0 2px 8px rgba(247, 147, 26, 0.3);
}

.chart-container {
    position: relative;
    height: 500px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
}

.chart-mini-settings {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    justify-content: center;
    border: 1px solid var(--border-color);
}

.mini-setting {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.mini-setting label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.mini-setting input {
    width: 65px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.2rem 0.4rem;
    border-radius: var(--radius-xs);
    font-size: 0.85rem;
    text-align: center;
}

.mini-setting input:focus {
    border-color: var(--accent-primary);
    outline: none;
}

#priceChart {
    width: 100%;
    height: 100%;
}

.chart-overlay {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: rgba(26, 31, 46, 0.9);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

/* Prediction Overlay */
.prediction-overlay {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: linear-gradient(135deg, rgba(26, 31, 46, 0.95), rgba(30, 36, 51, 0.95));
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(247, 147, 26, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    min-width: 280px;
    animation: fadeIn 0.5s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.prediction-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid rgba(247, 147, 26, 0.2);
}

.prediction-label {
    font-size: 0.875rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.prediction-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.prediction-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-xs);
    background: rgba(26, 31, 46, 0.5);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.prediction-item:hover {
    background: rgba(26, 31, 46, 0.8);
    transform: translateX(4px);
}

.prediction-time {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    min-width: 60px;
}

.prediction-price {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
    text-align: center;
}

.prediction-change {
    font-size: 0.75rem;
    font-weight: 600;
    min-width: 60px;
    text-align: right;
}

.prediction-change.up {
    color: var(--success);
}

.prediction-change.down {
    color: var(--danger);
}

.trend-indicator {
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.trend-label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-xs);
}

.trend-value {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.trend-value.bullish {
    color: var(--success);
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.trend-value.bearish {
    color: var(--danger);
    text-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
}

.trend-value.neutral {
    color: var(--accent-primary);
}

.trend-strength {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.strength-bar {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease, background 0.5s ease;
    position: relative;
    overflow: hidden;
}

.strength-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

.strength-bar.bullish {
    background: linear-gradient(90deg, var(--success), #059669);
}

.strength-bar.bearish {
    background: linear-gradient(90deg, var(--danger), #dc2626);
}

.strength-bar.neutral {
    background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
}


/* Signals Section */
.signal-status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-tertiary);
    animation: blink 2s ease-in-out infinite;
}

.status-indicator.active {
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
}

.status-indicator.buy {
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
}

.status-indicator.sell {
    background: var(--danger);
    box-shadow: 0 0 10px var(--danger);
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.signals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.signal-card {
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    transition: all var(--transition-base);
}

.signal-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.buy-signal {
    border-color: var(--success-border);
    background: linear-gradient(135deg, var(--bg-tertiary), rgba(16, 185, 129, 0.05));
}

.buy-signal:hover {
    border-color: var(--success);
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.2);
}

.sell-signal {
    border-color: var(--danger-border);
    background: linear-gradient(135deg, var(--bg-tertiary), rgba(239, 68, 68, 0.05));
}

.sell-signal:hover {
    border-color: var(--danger);
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.2);
}

.signal-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.buy-signal .signal-icon {
    background: var(--success-bg);
    color: var(--success);
}

.sell-signal .signal-icon {
    background: var(--danger-bg);
    color: var(--danger);
}

.signal-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.signal-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--border-color);
}

.info-row:last-child {
    border-bottom: none;
}

.info-row span:first-child {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.info-row span:last-child {
    color: var(--text-primary);
    font-weight: 600;
}

/* Strategy Section */
.toggle-btn {
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--success), #059669);
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.toggle-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
}

.toggle-btn.active {
    background: linear-gradient(135deg, var(--danger), #dc2626);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

.toggle-btn.active:hover {
    box-shadow: 0 6px 16px rgba(239, 68, 68, 0.4);
}

.strategy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.strategy-card {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.strategy-card label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.strategy-card input {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.strategy-card input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(247, 147, 26, 0.1);
}

.input-hint {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

/* History Section */
.clear-btn {
    padding: 0.5rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.clear-btn:hover {
    background: var(--danger-bg);
    border-color: var(--danger);
    color: var(--danger);
}

.history-table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
}

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

.history-table thead {
    background: var(--bg-card);
}

.history-table th {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
}

.history-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

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

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

.empty-state td {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-tertiary);
}

.trade-type {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.trade-type.buy {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.trade-type.sell {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

.profit-positive {
    color: var(--success);
    font-weight: 600;
}

.profit-negative {
    color: var(--danger);
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-container {
        padding: var(--spacing-sm);
    }

    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-stats {
        width: 100%;
        justify-content: space-between;
    }

    .chart-container {
        height: 300px;
    }

    .signals-grid,
    .strategy-grid {
        grid-template-columns: 1fr;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

section {
    animation: slideIn 0.5s ease-out;
}

section:nth-child(1) {
    animation-delay: 0.1s;
}

section:nth-child(2) {
    animation-delay: 0.2s;
}

section:nth-child(3) {
    animation-delay: 0.3s;
}

section:nth-child(4) {
    animation-delay: 0.4s;
}

/* Recommendation Section */
.recommendation-container {
    margin-top: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(30, 36, 51, 0.4), rgba(10, 14, 26, 0.6));
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    border: 1px solid rgba(247, 147, 26, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.rec-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.rec-ai-tag {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #1a1f2e;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    letter-spacing: 0.1em;
}

.rec-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.rec-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.rec-main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.rec-target,
.rec-profit {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    background: rgba(255, 255, 255, 0.03);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.rec-target .label,
.rec-profit .label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
}

.rec-target .value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.rec-profit .value {
    font-size: 1.5rem;
    font-weight: 700;
}

.rec-profit .value.up {
    color: var(--success);
}

.rec-profit .value.down {
    color: var(--danger);
}

.rec-summary {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    padding: var(--spacing-sm);
    background: rgba(247, 147, 26, 0.05);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent-primary);
}