/* Base Variables & Reset */
:root {
    --primary-blue: #1A365D;
    --secondary-blue: #2B6CB0;
    --accent-orange: #ED8936;
    --background-grey: #F7FAFC;
    --card-white: #FFFFFF;
    --text-main: #2D3748;
    --text-muted: #718096;
    --border-light: #E2E8F0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background-grey);
    color: var(--text-main);
    line-height: 1.5;
}

/* Header */
.top-bar {
    background-color: var(--primary-blue);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.header-titles h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.header-titles h2 {
    font-size: 1rem;
    font-weight: 400;
    color: #CBD5E0;
}

.select-dropdown {
    padding: 0.5rem 1rem;
    font-size: 1rem;
    border-radius: 4px;
    border: none;
    background-color: white;
    color: var(--primary-blue);
    font-weight: 600;
    cursor: pointer;
}

/* Main Layout */
.dashboard-container {
    display: flex;
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 1rem;
    gap: 2rem;
}

/* Sidebar Controls */
.sidebar {
    width: 350px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.control-panel, .chart-card, .metric-card {
    background-color: var(--card-white);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    border: 1px solid var(--border-light);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group label {
    font-weight: 600;
    display: flex;
    justify-content: space-between;
}

.val-highlight {
    color: var(--secondary-blue);
    font-weight: 700;
}

input[type=range] {
    width: 100%;
    cursor: pointer;
}

.helper-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Highlighted Metric Card in Sidebar */
.highlight-card {
    background-color: #EBF8FF;
    border-color: #BEE3F8;
    text-align: center;
    margin-top: 1rem;
}

.big-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-blue);
    margin: 0.5rem 0;
}

/* Main Content Area */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.chart-card h3, .metric-card h3, .control-panel h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--primary-blue);
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 0.5rem;
}

.canvas-container {
    position: relative;
    height: 300px; /* Fixed height for consistent rendering */
    width: 100%;
}

/* Wide Bottom Card */
.wide-card {
    text-align: center;
    padding: 2rem;
}

.huge-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin: 0.5rem 0;
}
/* Additions for the Data Source Manager */
.source-panel {
    background-color: #EBF8FF;
    border: 1px solid #BEE3F8;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.source-panel h3 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
    border-bottom: none;
    padding-bottom: 0;
}

.full-width {
    width: 100%;
}

.btn-primary {
    display: inline-block;
    background-color: var(--secondary-blue);
    color: white;
    padding: 0.6rem 1rem;
    border-radius: 4px;
    text-align: center;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
}

.btn-primary:hover {
    background-color: var(--primary-blue);
}

#uploadStatus {
    text-align: center;
    margin-top: 0.5rem;
    font-weight: 500;
}
/* --- Tab Navigation Styles --- */
.tabs-container {
    display: flex;
    background-color: var(--card-white);
    border-bottom: 2px solid var(--border-light);
    padding: 0 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.tab-btn {
    background: none;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--primary-blue);
    background-color: #F7FAFC;
}

.tab-btn.active {
    color: var(--secondary-blue);
    border-bottom: 3px solid var(--secondary-blue);
}

/* --- View Toggling --- */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Placeholder Styles for upcoming modules --- */
.placeholder-card {
    background-color: white;
    border: 2px dashed var(--border-light);
    border-radius: 8px;
    padding: 4rem 2rem;
    text-align: center;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.placeholder-card h2 {
    color: var(--primary-blue);
}

.coming-soon-badge {
    background-color: var(--accent-orange);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}
/* --- Manual Weights Panel Styles --- */
.weight-controls-panel {
    background-color: var(--card-white);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.weight-controls-panel h3 {
    margin-bottom: 1rem;
    color: var(--primary-blue);
    border-bottom: 2px solid var(--border-light);
    padding-bottom: 0.5rem;
}

.weights-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.weight-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.weight-item label {
    font-size: 0.9rem;
    font-weight: 600;
}

/* Disabled state for sidebar controls when on manual tab */
.disabled-control {
    opacity: 0.4;
    pointer-events: none;
}
.landing-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: var(--primary-blue);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.landing-content { text-align: center; }
.landing-buttons { display: flex; gap: 1rem; margin-top: 2rem; }
.btn-large {
    padding: 1.5rem 2rem;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    border-radius: 8px;
    background: white;
    color: var(--primary-blue);
}