body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f1f5f9;
    margin: 0;
    padding: 20px 0;
}

/* Logo */
.ca-logo {
    text-align: center;
    margin-bottom: 24px;
}

.ca-logo img {
    max-height: 80px;
    max-width: 320px;
}

.ca-logo-side-header {
    display: block;
    color: #6b7280;
    font-size: 1.1rem;
    margin-top: 8px;
    font-weight: 500;
}

/* Card */
.ca-card {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
}

.ca-card .card-header {
    background: none;
    border-bottom: none;
    padding: 28px 32px 0;
    text-align: center;
}

.ca-card .card-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a2e;
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.ca-card .card-body {
    padding: 24px 32px 32px;
}

/* Form inputs */
.ca-card .form-control {
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    transition: border-color 0.2s;
    color: #1a1a2e;
}

.ca-card .form-control:focus {
    border-color: #334155;
    box-shadow: none;
}

.ca-card .form-control::placeholder {
    color: #9ca3af;
}

.ca-card .form-select {
    padding: 12px 16px;
    font-size: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    transition: border-color 0.2s;
    color: #1a1a2e;
}

.ca-card .form-select:focus {
    border-color: #334155;
    box-shadow: none;
}

.ca-card .form-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: #6b7280;
    margin-bottom: 4px;
}

/* Submit button */
.ca-btn-submit {
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: #334155;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    min-width: 160px;
}

.ca-btn-submit:hover {
    opacity: 0.9;
    color: #fff;
}

.ca-btn-submit:active {
    transform: scale(0.97);
}

.ca-btn-submit:disabled,
.ca-btn-submit.disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Error styling */
.ca-error-header {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    color: #dc2626;
    font-size: 0.875rem;
    padding: 10px 14px;
    text-align: center;
}

.ca-field-error {
    font-size: 0.8rem;
    font-weight: 600;
    color: #dc2626;
    padding-left: 8px;
    margin-top: 4px;
}

/* Success container */
.ca-success {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: 32px;
    text-align: center;
}

.ca-success-message {
    font-size: 1rem;
    color: #1a1a2e;
    margin-bottom: 16px;
}

.ca-success-detail {
    font-size: 0.925rem;
    color: #6b7280;
    margin-bottom: 4px;
}

.ca-success-value {
    font-weight: 700;
    color: #1a1a2e;
}

.ca-success img {
    margin: 12px 0;
    max-width: 100%;
}

/* Footer */
.ca-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 0.85rem;
    color: #6b7280;
}

/* Responsive */
@media (max-width: 500px) {
    .ca-card .card-body {
        padding: 20px;
    }

    .ca-success {
        padding: 20px;
    }
}