:root {
    --color-background: #F9FAFB;
    --color-surface: #FFFFFF;
    --color-primary: #2563EB;
    --color-primary-hover: #1D4ED8;
    --color-text-base: #374151;
    --color-text-heading: #111827;
    --color-text-muted: #6B7280;
    --color-border: #E5E7EB;
    --font-sans: 'Inter', sans-serif;
}

body {
    font-family: var(--font-sans);
}

#header {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

.nav-link {
    color: var(--color-text-base);
    transition: color 0.3s ease;
    padding-bottom: 4px;
    position: relative;
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.section-heading {
    position: relative;
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-heading);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.section-heading::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50%;
    height: 3px;
    background-color: var(--color-primary);
}

.section-subheading {
    margin-top: 0.5rem;
    max-width: 600px;
    color: var(--color-text-muted);
}

.card {
    background-color: var(--color-surface);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-heading);
}

.card-sm {
    background-color: var(--color-surface);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
}

.value-card {
    background-color: var(--color-surface);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border-left: 4px solid var(--color-primary);
    text-align: center;
    font-weight: 600;
    color: var(--color-text-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.table-container {
    overflow-x: auto;
    background-color: var(--color-surface);
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
    padding: 0.5rem;
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.custom-table th, .custom-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.custom-table th {
    color: var(--color-text-heading);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.custom-table tbody tr:last-child td {
    border-bottom: none;
}

.custom-table tbody tr:hover {
    background-color: var(--color-background);
}

.timeline-title {
    font-weight: 600;
    color: var(--color-text-heading);
    margin-bottom: 0.25rem;
}

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