:root {
    --primary-color: #b71c1c;
    --primary-hover: #911515;
    --secondary-color: #0a3161;
    --text-color: #212121;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --border-color: #dee2e6;
    --bs-font-sans-serif: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif;
    --bs-body-font-size: 1rem;
}

[data-bs-theme="dark"] {
    --primary-color: #c62828;
    --primary-hover: #d32f2f;
    --secondary-color: #1565c0;
    --text-color: #e0e0e0;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --border-color: #424242;
}

body {
    font-family: var(--bs-font-sans-serif);
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.btn-primary {
    --bs-btn-color: #fff;
    --bs-btn-bg: var(--primary-color);
    --bs-btn-border-color: var(--primary-color);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--primary-hover);
    --bs-btn-hover-border-color: var(--primary-hover);
    --bs-btn-focus-shadow-rgb: 183, 28, 28;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.form-control, .form-select {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    transition: all 0.3s ease;
    font-size: .9rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(183, 28, 28, 0.25);
}

.amount-option {
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
    margin-bottom: 1rem;
}

.amount-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(183, 28, 28, 0.15);
}

.amount-option.active {
    border-color: var(--primary-color);
    background-color: rgba(183, 28, 28, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(183, 28, 28, 0.15);
}

.amount-option .amount-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.donation-type-option {
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.donation-type-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(183, 28, 28, 0.15);
}

.donation-type-option.active {
    border-color: var(--primary-color);
    background-color: rgba(183, 28, 28, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(183, 28, 28, 0.15);
}

.donation-type-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.conditional-section {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
    margin-top: 0;
}

.conditional-section.show {
    opacity: 1;
    max-height: 2000px;
    margin-top: 2rem;
}

.required-asterisk {
    color: var(--primary-color);
}

.info-card {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.info-card h5 {
    color: white;
}

.alternate-methods {
    background-color: rgba(183, 28, 28, 0.05);
    border: 1px solid rgba(183, 28, 28, 0.2);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 2rem;
}

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

.member-toggle .form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.form-floating .form-control:focus ~ label,
.form-floating .form-control:not(:placeholder-shown) ~ label {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .amount-option {
    margin-bottom: 0.5rem;
    }
    
    .hero-section {
    padding: 2rem 0;
    margin-bottom: 2rem;
    }
}