:root {
    --bg-color: #0a1929;
    --card-bg: #132f4c;
    --text-color: #E0E0E0;
    --accent-color: #66b2ff;
    --total-color: #4CAF50;
    --button-color: #2196F3;
    --button-hover: #1976D2;
    --spacing: 1.5rem;
    --dashboard-bg: #1a365d;
    --metric-positive: #4CAF50;
    --metric-negative: #f44336;
}

/* Core Styles */
body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Segoe UI', system-ui, sans-serif;
    margin: 0;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing);
}

/* Calculator Layout */
.calculator-grid {
    display: grid;
    gap: var(--spacing);
    margin-bottom: var(--spacing);
}

.calculator-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: var(--spacing);
}

.input-section {
    display: grid;
    gap: 1rem;
    margin: 1rem 0;
}

.input-group {
    display: flex;
    flex-direction: column;
}

/* Form Elements */
label {
    color: var(--text-color);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

input {
    background-color: var(--bg-color);
    border: 1px solid var(--accent-color);
    border-radius: 4px;
    color: var(--text-color);
    padding: 0.5rem;
    font-size: 1rem;
    width: 100%;
    box-sizing: border-box;
    text-align: right;
}

select {
    background-color: var(--bg-color);
    border: 1px solid var(--accent-color);
    border-radius: 4px;
    color: var(--text-color);
    padding: 0.5rem;
    font-size: 1rem;
    width: 100%;
    box-sizing: border-box;
}

.compute-btn {
    background-color: var(--button-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 0.75rem;
    width: 100%;
    cursor: pointer;
    transition: background-color 0.2s;
}

.compute-btn:hover {
    background-color: var(--button-hover);
}

/* Results Display */
.result-area {
    margin-top: var(--spacing);
    padding: 1rem;
    background-color: rgba(33, 150, 243, 0.1);
    border-radius: 8px;
    border: 1px solid var(--button-color);
}

.calculator-result {
    color: var(--accent-color);
    font-size: 1.2rem;
    font-weight: bold;
    text-align: right;
}

.result-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(102, 178, 255, 0.1);
}

.result-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.result-row span:first-child {
    color: var(--text-color);
    font-size: 0.9rem;
}

.result-row span:last-child {
    color: var(--accent-color);
    font-weight: bold;
}

.result-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.result-item {
    text-align: right;
}

.result-item.total {
    grid-column: 1 / -1;
    border-top: 1px solid var(--accent-color);
    padding-top: 1rem;
    margin-top: 0.5rem;
}

.result-item label {
    display: block;
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (min-width: 768px) {
    .calculator-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .input-section {
        grid-template-columns: repeat(2, 1fr);
    }

    .full-width {
        grid-column: 1 / -1;
    }
}

/* Dashboard Styles */
.dashboard-container {
    background-color: var(--dashboard-bg);
    padding: 2rem;
    margin-bottom: 2rem;
}

.dashboard-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.dashboard-card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.dashboard-card h3 {
    color: var(--accent-color);
    margin-top: 0;
    margin-bottom: 1rem;
}

.metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.metric-item {
    text-align: center;
    padding: 1rem;
    background-color: rgba(102, 178, 255, 0.1);
    border-radius: 8px;
}

.metric-item h4 {
    color: var(--text-color);
    margin: 0 0 0.5rem 0;
    font-size: 0.9rem;
}

.metric-value {
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--accent-color);
}

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

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

/* ...existing specialized styles for rehab section... */

/* Navigation Boxes */
.nav-links {
    display: flex;
    gap: 20px;
}

.nav-box {
    display: inline-block;
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    font-size: 1.2em;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.nav-box:hover {
    background-color: #0056b3;
}

/* Card Directory Styles */
.card-directory {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    margin-top: var(--spacing);
}

.card-directory-item {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    transition: transform 0.2s;
}

.card-directory-item:hover {
    transform: translateY(-5px);
}

.card-directory-item h4 {
    color: var(--accent-color);
    margin: 0.5rem 0;
}

.card-directory-item p {
    color: var(--text-color);
    font-size: 0.9rem;
    margin: 0;
}

/* Category Titles */
.category-title {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 1rem;
}

/* Menu Bar Styles */
.menu-bar {
    position: fixed;
    top: 0;
    right: 0;
    background-color: var(--card-bg);
    padding: 1rem;
    border-radius: 0 0 0 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.menu-bar a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1rem;
    display: block;
    margin-bottom: 0.5rem;
}

.menu-bar a:hover {
    color: var(--accent-color);
}

/* ...existing styles... */