:root {
    /* Colors */
    --bg-dark: #0f1115;
    --bg-sidebar: #161920;
    --bg-card: #1c2029;
    --bg-input: #252a36;
    --bg-hover: #2c3240;

    --text-primary: #f0f2f5;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --accent-primary: #3b82f6; /* Electric Blue */
    --accent-glow: rgba(59, 130, 246, 0.5);
    --accent-secondary: #10b981; /* Emerald */
    --accent-danger: #ef4444;

    --border-color: #2e3440;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.1);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.5;
    height: 100vh;
    overflow-x: hidden;
    overflow-y: hidden; /* Main content handles scrolling */
}

/* Layout */
.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: var(--spacing-lg) var(--spacing-md);
    flex-shrink: 0;
}

.logo-area {
    margin-bottom: var(--spacing-xl);
    padding: 0 var(--spacing-sm);
}

.logo-area h2 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.highlight {
    color: var(--accent-primary);
}

/* Instrument Selector in Sidebar */
.instrument-selector {
    margin-bottom: var(--spacing-xl);
}

.instrument-selector label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* Custom Select Styling */
.custom-select-wrapper {
    position: relative;
}

.custom-select-wrapper::after {
    content: '▼';
    font-size: 0.6rem;
    color: var(--text-secondary);
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

select, .Select-control {
    width: 100%;
    background-color: var(--bg-input) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-sm) !important;
    font-size: 0.9rem;
    transition: var(--transition);
}

/* Dash Dropdown Specific Overrides */
.Select-control {
    height: 42px !important;
    display: flex !important;
    align-items: center !important;
}

.Select-value-label {
    color: var(--text-primary) !important;
}

.Select-menu-outer {
    background-color: var(--bg-card) !important;
    border: 1px solid var(--border-color) !important;
    color: var(--text-primary) !important;
}

.Select-option {
    background-color: var(--bg-card) !important;
    color: var(--text-primary) !important;
}

.Select-option:hover {
    background-color: var(--bg-hover) !important;
}


/* Navigation */
.nav-menu {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: var(--transition);
    font-weight: 500;
}

.nav-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
    text-decoration: none;
}

.nav-item.active {
    background-color: var(--accent-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.nav-item i {
    font-size: 1.2rem;
}

.sidebar-footer {
    margin-top: auto;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.btn-logout {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--accent-danger);
    border: none;
    padding: 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.btn-logout:hover {
    background-color: rgba(239, 68, 68, 0.2);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-dark);
    position: relative;
    overflow-y: auto;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(22, 25, 32, 0.5);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.breadcrumbs {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.breadcrumbs .active {
    color: var(--text-primary);
    font-weight: 500;
}

.user-profile .avatar {
    width: 36px;
    height: 36px;
    background-color: var(--bg-hover);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.content-wrapper {
    padding: var(--spacing-md);
    max-width: 80%;
    margin: 0 auto;
    width: 80%;
}

.news-wrapper {
    width: 80%;
    max-width: 80%;
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xl);
    letter-spacing: -0.5px;
}

/* Controls Panel */
.controls-panel {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.control-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.custom-select-wrapper.large select {
    padding: 14px 16px;
    font-size: 1rem;
    background-color: var(--bg-card);
    border-color: var(--border-color);
    border-radius: var(--radius-md);
}

/* Slider Panel */
.slider-panel {
    background-color: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    border: 1px solid var(--border-color);
}

.slider-panel label {
    display: block;
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-weight: 500;
}

.slider-panel label span {
    color: var(--accent-primary);
    font-weight: 700;
}

.range-container {
    position: relative;
    padding: 0 10px;
}

.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 5px;
    background: #333;
    outline: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.2);
    transition: var(--transition);
}

.slider::-webkit-slider-thumb:hover {
    box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.3);
}

.range-markers {
    display: flex;
    justify-content: space-between;
    margin-top: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Chart Container */
.glass-panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

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

.chart-legend {
    display: flex;
    gap: var(--spacing-md);
    font-size: 0.85rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.promo { background-color: #06b6d4; } /* Cyan */
.dot.actual { background-color: #ef4444; } /* Red */

.chart-placeholder {
    width: 100%;
    height: 400px;
    background: linear-gradient(180deg, rgba(28,32,41,1) 0%, rgba(22,25,32,1) 100%);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px dashed var(--border-color);
}

/* News Grid */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.news-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-color);
}

.news-image {
    height: 160px;
    background-size: cover;
    background-position: center;
    position: relative;
    background-color: var(--bg-hover);
}

.news-source {
    position: absolute;
    bottom: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 4px 8px;
    font-size: 0.7rem;
    font-weight: 600;
    border-top-right-radius: var(--radius-sm);
}

.news-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.news-content h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    line-height: 1.4;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-decoration: none;
}

.news-content h3 a {
    color: var(--text-primary);
    text-decoration: none;
}

.news-meta {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.read-more {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 4px 10px;
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.read-more:hover {
    background-color: var(--accent-primary);
    color: white;
}