/* CSS Reset & Variable Definitions */
:root {
    --bg-dark: #090c10;
    --card-bg: #121721;
    --card-border: #1e2638;
    --card-hover: #1a2232;
    --accent-color: #3b82f6;
    --accent-gradient: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --input-bg: #1a2233;
    --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(79, 172, 254, 0.3);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.5;
    min-height: 100vh;
    padding: 20px;
}

.app-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Header Styling */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 16px 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #fff;
    box-shadow: var(--shadow-glow);
}

.logo-text h1 {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-text h1 span {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text p {
    font-size: 13px;
    color: var(--text-secondary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-api-docs {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(41, 98, 255, 0.15), rgba(156, 39, 176, 0.15));
    border: 1px solid rgba(41, 98, 255, 0.4);
    color: #38bdf8;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-api-docs:hover {
    background: linear-gradient(135deg, #2962ff, #9c27b0);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(41, 98, 255, 0.3);
    transform: translateY(-1px);
}

.provider-group {
    background: rgba(41, 98, 255, 0.05);
    border: 1px solid rgba(41, 98, 255, 0.25);
    padding: 14px;
    border-radius: 10px;
}

.provider-select {
    background-color: rgba(19, 23, 34, 0.9) !important;
    border: 1px solid #2962ff !important;
    color: #ffffff !important;
    font-weight: 600 !important;
}

.provider-badge-info {
    display: inline-block;
    font-size: 11px;
    color: #38bdf8;
    margin-top: 6px;
    font-weight: 500;
}

.status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--accent-green);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-green);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-green);
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.8; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.8; }
}

.server-info {
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--input-bg);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid var(--card-border);
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 20px;
}

@media (max-width: 1100px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* Sidebar / Control Panel */
.control-panel {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    box-shadow: var(--shadow-soft);
    height: fit-content;
}

.card-header {
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 12px;
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.card-header .subtitle {
    font-size: 12px;
    color: var(--text-muted);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.input-with-autocomplete {
    position: relative;
}

input[type="text"], select {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 14px;
    transition: all 0.2s ease;
}

input[type="text"]:focus, select:focus {
    outline: none;
    border-color: #4facfe;
    box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.2);
}

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #182030;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    margin-top: 4px;
    max-height: 220px;
    overflow-y: auto;
    z-index: 100;
    display: none;
    box-shadow: var(--shadow-soft);
}

.autocomplete-item {
    padding: 10px 14px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 13px;
}

.autocomplete-item:hover {
    background: rgba(79, 172, 254, 0.15);
}

.autocomplete-item .sym-ex {
    font-weight: 600;
    color: #4facfe;
}

.autocomplete-item .sym-desc {
    font-size: 11px;
    color: var(--text-muted);
}

/* Preset Buttons */
.preset-group {
    margin-bottom: 16px;
}

.preset-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
    display: block;
}

.presets {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.btn-preset {
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-preset:hover, .btn-preset.active {
    background: rgba(79, 172, 254, 0.2);
    border-color: #4facfe;
    color: #fff;
}

/* Timeframe Selector */
.timeframe-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.tf-btn {
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 8px 0;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

.tf-btn:hover, .tf-btn.active {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 10px rgba(0, 242, 254, 0.3);
}

/* Range input */
.range-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.range-val {
    font-size: 12px;
    font-weight: 600;
    color: #4facfe;
}

input[type="range"] {
    width: 100%;
    accent-color: #4facfe;
    cursor: pointer;
}

/* Primary Action Button */
.btn-primary {
    width: 100%;
    background: var(--accent-gradient);
    border: none;
    color: #fff;
    padding: 14px;
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: var(--shadow-glow);
    transition: all 0.3s ease;
    margin-top: 10px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(79, 172, 254, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary.loading {
    opacity: 0.7;
    pointer-events: none;
}

.btn-primary.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    100% { transform: rotate(360deg); }
}

/* Info Box */
.info-box {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

.info-box i {
    color: #4facfe;
    font-size: 16px;
    margin-top: 2px;
}

.info-box p {
    margin-top: 4px;
    line-height: 1.4;
}

/* Main Content Area */
.main-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Summary Cards Grid */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

@media (max-width: 1300px) {
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

.metric-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow-soft);
}

.card-icon {
    width: 44px;
    height: 44px;
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #4facfe;
}

.card-body {
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 2px 0;
}

.card-sub {
    font-size: 11px;
    color: var(--text-secondary);
}

/* Chart Panel & Tabs */
.panel-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.tab-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #0f141e;
    border-bottom: 1px solid var(--card-border);
    padding: 0 16px;
}

.tab-buttons {
    display: flex;
    gap: 4px;
}

.tab-btn {
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    padding: 14px 18px;
    font-family: var(--font-main);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

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

.tab-btn.active {
    color: #4facfe;
    border-bottom-color: #4facfe;
    background: rgba(79, 172, 254, 0.05);
}

.chart-controls {
    display: flex;
    gap: 8px;
}

.chart-controls button {
    background: var(--input-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.chart-controls button:hover {
    color: #fff;
    border-color: #4facfe;
}

.tab-contents {
    padding: 16px;
    min-height: 520px;
}

.tab-content {
    display: none;
    height: 100%;
}

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

/* Chart Canvas Wrapper */
.chart-wrapper {
    width: 100%;
    height: 500px;
    position: relative;
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.chart-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--text-muted);
    background: rgba(18, 23, 33, 0.8);
    backdrop-filter: blur(4px);
    z-index: 10;
}

.chart-placeholder i {
    font-size: 48px;
    color: #4facfe;
}

/* Table Styling */
.table-responsive {
    max-height: 480px;
    overflow-y: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    font-family: var(--font-mono);
}

.data-table th {
    position: sticky;
    top: 0;
    background: #182030;
    color: var(--text-secondary);
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--card-border);
    font-weight: 600;
}

.data-table td {
    padding: 10px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.data-table tbody tr:hover {
    background: rgba(79, 172, 254, 0.08);
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 40px !important;
}

/* JSON & Log Viewer */
.json-viewer {
    background: #0d1117;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: #a5d6ff;
    max-height: 480px;
    overflow-y: auto;
    white-space: pre-wrap;
}

.log-console {
    background: #090c10;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-sm);
    padding: 16px;
    font-family: var(--font-mono);
    font-size: 12px;
    height: 480px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.log-line {
    padding: 4px 8px;
    border-radius: 4px;
}

.log-line.info { color: #58a6ff; }
.log-line.success { color: #3fb950; background: rgba(63, 185, 80, 0.08); }
.log-line.error { color: #f85149; background: rgba(248, 81, 73, 0.08); }
.log-line.warn { color: #d29922; }

/* Real-time Live Button & Badge Styling */
.btn-live {
    width: 100%;
    background: #1e293b;
    border: 1px solid #334155;
    color: #94a3b8;
    padding: 12px;
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s ease;
    margin-top: 8px;
}

.btn-live:hover {
    background: #334155;
    color: #fff;
}

.btn-live.active {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 20px rgba(239, 68, 68, 0.4);
    animation: livePulseGlow 2s infinite;
}

@keyframes livePulseGlow {
    0% { box-shadow: 0 0 10px rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 25px rgba(239, 68, 68, 0.7); }
    100% { box-shadow: 0 0 10px rgba(239, 68, 68, 0.4); }
}

.live-stream-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #ef4444;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.live-pulse {
    width: 8px;
    height: 8px;
    background-color: #ef4444;
    border-radius: 50%;
    box-shadow: 0 0 10px #ef4444;
    animation: pulse 1.2s infinite;
}

/* Price Flash Animation when live tick arrives */
.price-flash-up {
    animation: flashGreen 0.6s ease;
}
.price-flash-down {
    animation: flashRed 0.6s ease;
}

@keyframes flashGreen {
    0% { color: #10b981; text-shadow: 0 0 12px rgba(16, 185, 129, 0.8); }
    100% { text-shadow: none; }
}

@keyframes flashRed {
    0% { color: #ef4444; text-shadow: 0 0 12px rgba(239, 68, 68, 0.8); }
    100% { text-shadow: none; }
}