:root {
    --font-size: 16px;
    --background: #ffffff;
    --foreground: #000000;
    --primary: #000000;
    --primary-foreground: #ffffff;
    --secondary: #f8f9fa;
    --secondary-foreground: #000000;
    --muted: #f8f9fa;
    --muted-foreground: #666666;
    --accent: #FFD700;
    --accent-foreground: #000000;
    --border: rgba(0, 0, 0, 0.1);
    --radius: 0.625rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: calc(var(--radius) - 2px);
    font-weight: 500;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
    text-decoration: none;
}

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

    .btn-primary:hover {
        background: #e6c200;
    }

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--border);
}

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

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.card {
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
}

.hidden-mobile {
    display: none;
}

@media (min-width: 768px) {
    .hidden-mobile {
        display: flex;
    }
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

    .modal.show {
        display: flex;
    }

.modal-content {
    background: white;
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: calc(var(--radius) - 2px);
    background: var(--muted);
}

    .form-input:focus {
        outline: none;
        ring: 2px solid var(--accent);
    }