/* Form Component System */

/* Form Containers */
.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.form-section {
    margin-bottom: var(--spacing-8);
    padding-bottom: var(--spacing-5);
    border-bottom: var(--border-width-1) solid var(--border-color);
}

.form-section:last-child,
.form-section:only-of-type {
    border-bottom: none;
    margin-bottom: 0;
}

.form-section h3 {
    margin-bottom: var(--spacing-4);
    color: var(--color-gray-700);
    font-weight: var(--font-weight-bold);
}

/* Form Groups */
.form-group,
.form-field {
    margin-bottom: var(--spacing-5);
}

.form-group.disabled {
    opacity: 0.6;
    pointer-events: none;
}

.form-group label,
.form-field label {
    display: block;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-1);
    color: var(--color-gray-700);
}

/* Form Controls */
.form-control,
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="password"],
.form-field input[type="url"],
.form-field input[type="search"],
.form-field input[type="tel"],
.form-field input[type="number"],
.form-field select,
.form-field textarea {
    display: block;
    width: 100%;
    padding: var(--spacing-2) var(--spacing-3);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    color: var(--color-gray-700);
    background-color: var(--color-white);
    background-image: none;
    border: var(--border-width-1) solid var(--color-gray-400);
    border-radius: var(--radius-base);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075);
}

.form-control:focus,
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    border-color: var(--color-focus-border);
    outline: 0;
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-control:disabled,
.form-field input:disabled,
.form-field select:disabled,
.form-field textarea:disabled {
    background-color: var(--color-gray-100);
    opacity: 1;
    cursor: not-allowed;
}

.form-control::placeholder,
.form-field input::placeholder,
.form-field textarea::placeholder {
    color: var(--color-muted);
    opacity: 1;
}

/* Select Elements */
select.form-control,
.form-field select {
    cursor: pointer;
}

select.form-control:not([multiple]),
.form-field select:not([multiple]) {
    height: calc(1.5em + 0.75rem + 2px);
}

/* Textarea Elements */
.form-field textarea {
    height: 300px;
    font-family: var(--font-family-mono);
    resize: vertical;
}

/* Border color fallback to prevent Firefox flash (black → gray) */
/* Explicit color loads before CSS variable is parsed */
.form-control,
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="password"],
.form-field input[type="url"],
.form-field input[type="search"],
.form-field input[type="tel"],
.form-field input[type="number"],
.form-field select,
.form-field textarea {
    border: 1px solid #ced4da; /* Fallback color */
    border: var(--border-width-1) solid var(--color-gray-400); /* CSS variable override */
}

/* Form Help Text */
.form-help,
.form-field .help-text,
.help-text {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.help-text a {
    color: var(--color-text-muted);
    text-decoration: underline;
}

.help-text a:hover {
    color: var(--color-accent);
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--spacing-2);
    justify-content: flex-end;
    margin-top: var(--spacing-6);
    padding-top: var(--spacing-4);
    border-top: var(--border-width-1) solid var(--border-color-light);
}

/* Remove redundant border when form-actions follows a single form-section */
.form-section:only-of-type + .form-actions {
    border-top: none;
    padding-top: 0;
}

.form-actions.start {
    justify-content: flex-start;
}

.form-actions.center {
    justify-content: center;
}

.form-actions.between {
    justify-content: space-between;
}

/* Form Validation States */
.form-group.has-success .form-control,
.form-field.has-success input,
.form-field.has-success select,
.form-field.has-success textarea {
    border-color: var(--color-success);
}

.form-group.has-success .form-control:focus,
.form-field.has-success input:focus,
.form-field.has-success select:focus,
.form-field.has-success textarea:focus {
    border-color: var(--color-success);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 0 3px rgba(40, 167, 69, 0.1);
}

.form-group.has-error .form-control,
.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea {
    border-color: var(--color-danger);
}

.form-group.has-error .form-control:focus,
.form-field.has-error input:focus,
.form-field.has-error select:focus,
.form-field.has-error textarea:focus {
    border-color: var(--color-danger);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-group.has-warning .form-control,
.form-field.has-warning input,
.form-field.has-warning select,
.form-field.has-warning textarea {
    border-color: var(--color-warning);
}

.form-group.has-warning .form-control:focus,
.form-field.has-warning input:focus,
.form-field.has-warning select:focus,
.form-field.has-warning textarea:focus {
    border-color: var(--color-warning);
    box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 0 3px rgba(255, 193, 7, 0.1);
}

/* Error Messages */
.error-message,
.form-error {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--color-danger);
}

/* Success Messages */
.success-message,
.form-success {
    display: block;
    margin-top: var(--spacing-1);
    font-size: var(--font-size-sm);
    color: var(--color-success);
}

/* Form Layout Utilities */
.form-row {
    display: flex;
    flex-wrap: wrap;
    margin-left: calc(var(--spacing-3) * -1);
    margin-right: calc(var(--spacing-3) * -1);
}

.form-row > .form-group,
.form-row > .form-field {
    padding-left: var(--spacing-3);
    padding-right: var(--spacing-3);
}

.form-col {
    flex: 1;
    min-width: 0;
}

.form-col-auto {
    flex: 0 0 auto;
    width: auto;
}

/* Checkbox and Radio Styles */
.form-check {
    position: relative;
    display: block;
    padding-left: var(--spacing-6);
}

.form-check-input {
    position: absolute;
    margin-top: 0.3rem;
    margin-left: calc(var(--spacing-6) * -1);
}

.form-check-label {
    margin-bottom: 0;
    cursor: pointer;
}

/* File Input Styles */
.form-file {
    position: relative;
    display: inline-block;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    margin-bottom: 0;
}

.form-file-input {
    position: relative;
    z-index: 2;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    margin: 0;
    opacity: 0;
}

.form-file-label {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1;
    height: calc(1.5em + 0.75rem + 2px);
    padding: var(--spacing-2) var(--spacing-3);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-base);
    color: var(--color-gray-700);
    background-color: var(--color-white);
    border: var(--border-width-1) solid var(--color-gray-400);
    border-radius: var(--radius-base);
}

/* Legal Notice in Forms */
.legal-notice {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0.75rem 0 0.5rem 0;
    line-height: 1.4;
}

.legal-notice a {
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: var(--font-weight-normal);
}

.legal-notice a:hover {
    color: var(--color-text-primary);
    text-decoration: underline;
}

/* Form Size Modifiers */
.form-control-sm,
.form-field-sm input,
.form-field-sm select,
.form-field-sm textarea {
    padding: var(--spacing-1) var(--spacing-2);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-sm);
}

.form-control-lg,
.form-field-lg input,
.form-field-lg select,
.form-field-lg textarea {
    padding: var(--spacing-3) var(--spacing-4);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-md);
}