/* Form Validation Styles */

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}
/* Dark mode */
.dark .form-label { color: #e5e7eb; }

.form-label.required::after {
    content: ' *';
    color: #ef4444;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.2s;
}
.dark .form-input,
.dark .form-select,
.dark .form-textarea {
    background-color: #111827;
    border-color: #4b5563;
    color: #e5e7eb;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Invalid state */
.form-input.is-invalid,
.form-select.is-invalid,
.form-textarea.is-invalid {
    border-color: #ef4444;
    background-color: #fef2f2;
}
.dark .form-input.is-invalid,
.dark .form-select.is-invalid,
.dark .form-textarea.is-invalid {
    background-color: #1f2937;
}

.form-input.is-invalid:focus,
.form-select.is-invalid:focus,
.form-textarea.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* Valid state */
.form-input.is-valid,
.form-select.is-valid,
.form-textarea.is-valid {
    border-color: #10b981;
    background-color: #f0fdf4;
}
.dark .form-input.is-valid,
.dark .form-select.is-valid,
.dark .form-textarea.is-valid {
    background-color: #052e16;
}

.form-input.is-valid:focus,
.form-select.is-valid:focus,
.form-textarea.is-valid:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Error message */
.field-error {
    margin-top: 0.25rem;
    padding: 0.5rem;
    background-color: #fee2e2;
    border-left: 3px solid #ef4444;
    color: #dc2626;
    font-size: 0.875rem;
    border-radius: 0.25rem;
    display: flex;
    align-items: center;
}
.dark .field-error {
    background-color: #2f1515;
    color: #fca5a5;
}

.field-error::before {
    content: '⚠ ';
    margin-right: 0.5rem;
}

/* Form help text */
.form-help {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #6b7280;
}
.dark .form-help { color: #9ca3af; }

/* Submit button */
.btn-submit {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background-color: #3b82f6;
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-submit:hover {
    background-color: #2563eb;
}

.btn-submit:disabled {
    background-color: #d1d5db;
    cursor: not-allowed;
    opacity: 0.6;
}

/* Form grid layout */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.form-col {
    flex: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }

    .form-input,
    .form-select,
    .form-textarea {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

/* Loading state */
.btn-submit.loading {
    position: relative;
    color: transparent;
}

.btn-submit.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
    to {
        transform: rotate(360deg);
    }
}