:root {
    --bg-dark: #0a0e17;
    --bg-sidebar: rgba(10, 14, 23, 0.95);
    --glass-bg: rgba(22, 32, 50, 0.8);
    --glass-border: rgba(255, 255, 255, 0.08);
    --text-main: #f8fafc;
    --text-muted: #8b9bb4;
    --accent: #2563eb;
    --accent-hover: #3b82f6;
    --positive: #00d26a; /* Vibrant broker green */
    --negative: #f43f5e;
    --warning: #f59e0b;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

.app-container {
    display: flex;
    min-height: 100vh;
    background: radial-gradient(circle at top left, #1e293b 0%, var(--bg-dark) 40%);
}

.sidebar {
    width: 250px;
    background: var(--bg-sidebar);
    backdrop-filter: blur(12px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 2rem 1rem;
}

.logo {
    margin-bottom: 3rem;
    padding-left: 1rem;
}

.logo h2 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 0.75rem 1rem;
    text-align: left;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.nav-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.nav-btn.active {
    color: var(--text-main);
    background: rgba(59, 130, 246, 0.1);
    border-left: 3px solid var(--accent);
}

.main-content {
    flex: 1;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow-y: auto;
}

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 0.5rem;
}

.toggle-group {
    display: inline-flex;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 0.5rem;
    padding: 0.2rem;
    border: 1px solid var(--glass-border);
}

.btn-toggle {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 0.3rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-toggle:hover {
    color: var(--text-main);
}

.btn-toggle.active {
    background: var(--glass-bg);
    color: var(--text-main);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    border: 1px solid var(--glass-border);
}

.progress-bar-container {
    width: 100%;
    height: 12px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 6px;
    overflow: hidden;
    margin-top: 0.5rem;
    border: 1px solid var(--glass-border);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--positive));
    border-radius: 6px;
    transition: width 0.5s ease-out;
}

#page-title {
    font-size: 1.8rem;
    font-weight: 600;
}

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

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: transform 0.2s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
}

.metric-card h3 {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-card .value {
    font-size: 1.8rem;
    font-weight: 700;
}

.metric-card.positive .value { color: var(--positive); }
.metric-card.negative .value { color: var(--negative); }

.charts-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .charts-section {
        grid-template-columns: 1fr;
    }
}

.chart-card {
    padding: 1.5rem;
    height: 400px;
    display: flex;
    flex-direction: column;
}

.chart-card h3 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.view-section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.view-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.card {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.data-table th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.positive-text { color: var(--positive); }
.negative-text { color: var(--negative); }
.warning-text { color: var(--warning); }

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 0.5rem;
    color: var(--text-main);
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}

.form-control:focus {
    border-color: var(--accent);
}

.btn {
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

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

.btn-secondary {
    background: transparent;
    border: 1px solid var(--glass-border);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Flex utilities */
.d-flex { display: flex; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }