:root {
    --primary-dark: #1a1a1a;
    --text-dark: #333333;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-gray: #e0e0e0;
    --status-pending: #ffc107;
    --status-verified: #28a745;
    --status-rejected: #dc3545;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-dark);
    background-color: var(--bg-light);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

main {
    flex: 1;
}

.header-center {
    background-color: var(--bg-white);
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid var(--border-gray);
}

.header-center img {
    max-width: 100%;
    width: 400px;
    height: auto;
}

.hero {
    text-align: center;
    padding: 4rem 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.btn {
    display: inline-block;
    background-color: var(--primary-dark);
    color: var(--bg-white);
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}

.btn:hover {
    opacity: 0.9;
}

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
    margin-right: 0.5rem;
}

.btn-success { background-color: var(--status-verified); }
.btn-danger { background-color: var(--status-rejected); }

.dashboard-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.card {
    background: var(--bg-white);
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-gray);
    border-radius: 4px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

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

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--bg-white);
}

.badge-pending { background-color: var(--status-pending); color: var(--text-dark); }
.badge-verified { background-color: var(--status-verified); }
.badge-rejected { background-color: var(--status-rejected); }

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-gray);
    height: 70px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-brand img {
    height: 25px;
    width: auto;
    display: block;
}

.nav-actions .btn-primary {
    background-color: var(--primary-dark);
    color: var(--bg-white);
    padding: 0.5rem 1.2rem;
    border-radius: 4px;
    font-weight: 600;
}

.global-footer {
    background-color: var(--bg-white);
    padding: 3rem 2rem 1.5rem;
    border-top: 1px solid var(--border-gray);
    margin-top: auto;
}

.footer-logo {
    height: 35px;
    width: auto;
    margin: 0 auto 2rem auto;
    display: block;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.footer-col h3 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

.footer-col p {
    margin-bottom: 0.5rem;
}

.footer-col a {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.footer-col a:hover {
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-gray);
    font-size: 0.85rem;
    color: #666;
}

.tab-container {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-gray);
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    border: none;
    background: none;
    font-weight: 600;
    color: #666;
    border-bottom: 3px solid transparent;
}

.tab-btn.active {
    color: var(--primary-dark);
    border-bottom-color: var(--primary-dark);
}

.tab-content {
    display: none;
}

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

.billing-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-white);
    padding: 1.5rem;
    border: 1px solid var(--border-gray);
    border-radius: 8px;
    text-align: center;
}

.stat-card h4 {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 0.5rem;
}

.stat-card p {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.filter-bar {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1.5rem;
}