:root {
    --primary-color: #1a2a3a;
    --secondary-color: #2c3e50;
    --accent-color: #e74c3c;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --text-color: #333;
    --light-text: #6c757d;
    --success: #2ecc71;
    --warning: #f39c12;
    --danger: #e74c3c;
    --neutral: #95a5a6;

    /* Dark mode variables */
    --dark-primary-color: #0f1a2a;
    --dark-secondary-color: #1a2a3a;
    --dark-bg-color: #121212;
    --dark-card-bg: #1e1e1e;
    --dark-text-color: #e0e0e0;
    --dark-light-text: #a0a0a0;

    /* Font weights */
    --font-light: 300;
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: var(--font-normal);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s, color 0.3s;
}

.navbar {
    background-color: var(--primary-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.main-container {
    flex: 1;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 1.5rem 0;
    margin-top: auto;
}

.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    background-color: var(--card-bg);
    transition: transform 0.3s, box-shadow 0.3s, background-color 0.3s;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: var(--primary-color);
    color: white;
    border-bottom: none;
    padding: 1rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

.home-hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 15px;
    padding: 3rem 2rem;
    margin-bottom: 2rem;
}

.btn-primary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

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

.btn-outline-light:hover {
    color: var(--primary-color);
}

/* Strategy colors */
.strategy-strong-buy {
    background-color: var(--success);
    color: white;
}

.strategy-buy {
    background-color: #7bed9f;
    color: var(--text-color);
}

.strategy-neutral {
    background-color: var(--neutral);
    color: white;
}

.strategy-sell {
    background-color: #ff7f50;
    color: var(--text-color);
}

.strategy-strong-sell {
    background-color: var(--danger);
    color: white;
}

.strategy-badge {
    padding: 0.5rem 1rem;
    border-radius: 5px;
    font-weight: var(--font-semibold);
    display: inline-block;
}

.metric-card {
    background: var(--card-bg);
    border-radius: 10px;
    padding: 1rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: background-color 0.3s;
}

.metric-value {
    font-size: 2rem;
    font-weight: var(--font-bold);
    margin: 0.5rem 0;
}

.metric-title {
    font-size: 0.9rem;
    color: var(--light-text);
    margin-bottom: 0;
}

/* Watchlist styles */
.watchlist-item {
    background: var(--card-bg);
    border-left: 5px solid var(--primary-color);
    border-radius: 5px;
    padding: 1rem;
    margin-bottom: 1rem;
    transition: all 0.3s;
}

.watchlist-item:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transform: translateX(5px);
}

/* Data table styles */
.data-table {
    width: 100%;
    margin-bottom: 1rem;
}

.data-table th {
    background-color: var(--primary-color);
    color: white;
    padding: 0.75rem;
}

.data-table td {
    padding: 0.75rem;
    vertical-align: middle;
}

.data-table tbody tr:nth-child(odd) {
    background-color: rgba(0, 0, 0, 0.025);
}

.data-table tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

/* Chart container */
.chart-container {
    height: 400px;
    width: 100%;
    margin-bottom: 2rem;
}

/* Dashboard styles */
.dashboard-card {
    margin-bottom: 1.5rem;
    height: calc(100% - 1.5rem);
}

.dashboard-card .card-body {
    padding: 1rem;
}

.dashboard-card .card-title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .home-hero {
        padding: 2rem 1rem;
    }

    .metric-value {
        font-size: 1.5rem;
    }

    .chart-container {
        height: 350px;
    }
}

/* Input styling */
input, select, textarea, .form-control {
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: var(--font-medium);
    color: var(--text-color);
    background-color: var(--card-bg);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    padding: 0.5rem 0.75rem;
    transition: border-color 0.3s, background-color 0.3s, color 0.3s;
}

input:focus, select:focus, textarea:focus, .form-control:focus {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 0.2rem rgba(44, 62, 80, 0.25);
    outline: none;
}

/* Ticker input styling */
.ticker-input {
    font-family: monospace;
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* Score indicators */
.score-high {
    color: var(--success);
    font-weight: var(--font-bold);
}

.score-medium {
    color: var(--warning);
    font-weight: var(--font-bold);
}

.score-low {
    color: var(--danger);
    font-weight: var(--font-bold);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 0.5s ease-in;
}

/* Loading spinner */
.spinner-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--light-text);
    border-top: 5px solid var(--secondary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Dark mode toggle */
.dark-mode-toggle {
    cursor: pointer;
    border-radius: 20px;
    color: white;
}

.dark-mode-toggle i {
    margin-right: 5px;
}

/* Dark mode styles */
body.dark-mode {
    background-color: var(--dark-bg-color);
    color: var(--dark-text-color);
}

body.dark-mode .navbar,
body.dark-mode .footer,
body.dark-mode .card-header {
    background-color: var(--dark-primary-color);
}

body.dark-mode .card,
body.dark-mode .metric-card,
body.dark-mode .watchlist-item {
    background-color: var(--dark-card-bg);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

body.dark-mode .home-hero {
    background: linear-gradient(135deg, var(--dark-primary-color) 0%, var(--dark-secondary-color) 100%);
}

body.dark-mode .btn-primary {
    background-color: var(--dark-secondary-color);
    border-color: var(--dark-secondary-color);
}

body.dark-mode .btn-primary:hover {
    background-color: var(--dark-primary-color);
    border-color: var(--dark-primary-color);
}

body.dark-mode .metric-title,
body.dark-mode .light-text {
    color: var(--dark-light-text);
}

body.dark-mode .data-table th {
    background-color: var(--dark-primary-color);
}

body.dark-mode .data-table tbody tr:nth-child(odd) {
    background-color: rgba(255, 255, 255, 0.05);
}

body.dark-mode .data-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Dark mode input styles */
body.dark-mode input,
body.dark-mode select,
body.dark-mode textarea,
body.dark-mode .form-control {
    background-color: var(--dark-card-bg);
    color: var(--dark-text-color);
    border-color: rgba(255, 255, 255, 0.1);
}

body.dark-mode input:focus,
body.dark-mode select:focus,
body.dark-mode textarea:focus,
body.dark-mode .form-control:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem rgba(231, 76, 60, 0.25);
}

body.dark-mode input::placeholder,
body.dark-mode select::placeholder,
body.dark-mode textarea::placeholder,
body.dark-mode .form-control::placeholder {
    color: var(--dark-light-text);
}

/* Typography styles for Source Sans Pro font */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: var(--font-bold);
}

h1 {
    font-weight: var(--font-extrabold);
}

.navbar-brand {
    font-weight: var(--font-bold);
}

.nav-link {
    font-weight: var(--font-medium);
}

.btn {
    font-weight: var(--font-semibold);
}

.card-header {
    font-weight: var(--font-semibold);
}

.card-title {
    font-weight: var(--font-bold);
}

.metric-value {
    font-weight: var(--font-extrabold);
}

.metric-title {
    font-weight: var(--font-medium);
}

.strategy-badge {
    font-weight: var(--font-semibold);
}

.footer {
    font-weight: var(--font-normal);
}

.home-hero h1 {
    font-weight: var(--font-black);
}

.home-hero p {
    font-weight: var(--font-medium);
}