/**
 * SIMPLCOMMERCE - FORM COMPONENT
 * Modern form elements and controls
 * Version: 2.0 | Date: 2025-10-22
 */

/* ===========================================================================
   FORM GROUPS
   =========================================================================== */

.form-group {
    margin-bottom: var(--space-6);
}

.form-group:last-child {
    margin-bottom: 0;
}

/* ===========================================================================
   FORM LABELS
   =========================================================================== */

.form-label {
    display: inline-block;
    margin-bottom: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
    line-height: var(--line-height-tight);
}

.form-label-required::after {
    content: '*';
    color: var(--color-danger);
    margin-left: var(--space-1);
}

/* ===========================================================================
   FORM CONTROLS - BASE
   =========================================================================== */

.form-control {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    background-clip: padding-box;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-control::placeholder {
    color: var(--color-gray-400);
    opacity: 1;
}

.form-control:disabled,
.form-control[readonly] {
    background-color: var(--color-gray-100);
    opacity: 0.7;
    cursor: not-allowed;
}

/* ===========================================================================
   FORM CONTROL SIZES
   =========================================================================== */

.form-control-sm {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
}

.form-control-lg {
    padding: var(--space-4) var(--space-5);
    font-size: var(--font-size-lg);
}

/* ===========================================================================
   FORM CONTROL STATES
   =========================================================================== */

.form-control.is-valid {
    border-color: var(--color-success);
}

.form-control.is-valid:focus {
    border-color: var(--color-success);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-control.is-invalid {
    border-color: var(--color-danger);
}

.form-control.is-invalid:focus {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

/* ===========================================================================
   TEXTAREA
   =========================================================================== */

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

textarea.form-control-sm {
    min-height: 80px;
}

textarea.form-control-lg {
    min-height: 120px;
}

/* ===========================================================================
   SELECT
   =========================================================================== */

.form-select {
    display: block;
    width: 100%;
    padding: var(--space-3) var(--space-10) var(--space-3) var(--space-4);
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-gray-900);
    background-color: var(--color-white);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right var(--space-4) center;
    background-size: 16px 12px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
}

.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-select:disabled {
    background-color: var(--color-gray-100);
    opacity: 0.7;
    cursor: not-allowed;
}

/* Select Sizes */
.form-select-sm {
    padding: var(--space-2) var(--space-8) var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
}

.form-select-lg {
    padding: var(--space-4) var(--space-12) var(--space-4) var(--space-5);
    font-size: var(--font-size-lg);
}

/* ===========================================================================
   CHECKBOXES & RADIO BUTTONS
   =========================================================================== */

.form-check {
    display: block;
    min-height: 1.5rem;
    padding-left: var(--space-8);
    margin-bottom: var(--space-3);
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-top: 0.125rem;
    margin-left: calc(var(--space-8) * -1);
    float: left;
    background-color: var(--color-white);
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    border: 1px solid var(--color-gray-300);
    appearance: none;
    cursor: pointer;
}

.form-check-input[type="checkbox"] {
    border-radius: var(--radius-sm);
}

.form-check-input[type="radio"] {
    border-radius: var(--radius-full);
}

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

.form-check-input[type="checkbox"]:checked {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
}

.form-check-input[type="radio"]:checked {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23fff'/%3e%3c/svg%3e");
}

.form-check-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-check-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

/* Inline Checkboxes */
.form-check-inline {
    display: inline-block;
    margin-right: var(--space-4);
}

/* ===========================================================================
   SWITCHES
   =========================================================================== */

.form-switch {
    padding-left: calc(var(--space-2) * 13);
}

.form-switch .form-check-input {
    width: calc(var(--space-2) * 11);
    height: calc(var(--space-2) * 6);
    margin-left: calc(var(--space-2) * -13);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='rgba(0,0,0,0.25)'/%3e%3c/svg%3e");
    background-position: left center;
    border-radius: calc(var(--space-2) * 6);
    transition: background-position var(--transition-fast);
}

.form-switch .form-check-input:checked {
    background-position: right center;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='3' fill='%23fff'/%3e%3c/svg%3e");
}

/* ===========================================================================
   INPUT GROUPS
   =========================================================================== */

.input-group {
    display: flex;
    width: 100%;
    position: relative;
}

.input-group > .form-control,
.input-group > .form-select {
    flex: 1 1 auto;
    width: 1%;
    min-width: 0;
}

.input-group > .form-control:not(:first-child),
.input-group > .form-select:not(:first-child) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.input-group > .form-control:not(:last-child),
.input-group > .form-select:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-gray-700);
    text-align: center;
    white-space: nowrap;
    background-color: var(--color-gray-100);
    border: 1px solid var(--color-gray-300);
}

.input-group > .input-group-text:first-child {
    border-top-left-radius: var(--radius-md);
    border-bottom-left-radius: var(--radius-md);
    border-right: 0;
}

.input-group > .input-group-text:last-child {
    border-top-right-radius: var(--radius-md);
    border-bottom-right-radius: var(--radius-md);
    border-left: 0;
}

/* ===========================================================================
   FORM FEEDBACK
   =========================================================================== */

.form-text {
    display: block;
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.valid-feedback {
    display: none;
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-success);
}

.invalid-feedback {
    display: none;
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-danger);
}

.form-control.is-valid ~ .valid-feedback {
    display: block;
}

.form-control.is-invalid ~ .invalid-feedback {
    display: block;
}

/* ===========================================================================
   FILE INPUT
   =========================================================================== */

.form-file {
    position: relative;
    display: inline-block;
    width: 100%;
    height: calc(1.5em + var(--space-3) * 2 + 2px);
    margin-bottom: 0;
}

.form-file-input {
    position: relative;
    z-index: 2;
    width: 100%;
    height: 100%;
    margin: 0;
    opacity: 0;
    cursor: pointer;
}

.form-file-label {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    z-index: 1;
    display: flex;
    height: 100%;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    cursor: pointer;
}

.form-file-text {
    display: block;
    flex-grow: 1;
    padding: var(--space-3) var(--space-4);
    overflow: hidden;
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--color-gray-700);
    text-overflow: ellipsis;
    white-space: nowrap;
    background-color: var(--color-white);
    border-right: 0;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
}

.form-file-button {
    display: block;
    flex-shrink: 0;
    padding: var(--space-3) var(--space-4);
    margin-left: -1px;
    line-height: var(--line-height-normal);
    color: var(--color-gray-700);
    background-color: var(--color-gray-100);
    border-left: 1px solid var(--color-gray-300);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

/* ===========================================================================
   FLOATING LABELS
   =========================================================================== */

.form-floating {
    position: relative;
}

.form-floating > .form-control,
.form-floating > .form-select {
    height: calc(3.5rem + 2px);
    padding: var(--space-4) var(--space-4);
}

.form-floating > label {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    padding: var(--space-4) var(--space-4);
    pointer-events: none;
    border: 1px solid transparent;
    transform-origin: 0 0;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label,
.form-floating > .form-select ~ label {
    opacity: 0.65;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

/* ===========================================================================
   RESPONSIVE
   =========================================================================== */

@media (max-width: 768px) {
    .form-control,
    .form-select {
        font-size: var(--font-size-base);
    }
    
    .form-control-lg,
    .form-select-lg {
        padding: var(--space-3) var(--space-4);
        font-size: var(--font-size-base);
    }
}

/* ===========================================================================
   ACCESSIBILITY
   =========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .form-control,
    .form-select,
    .form-check-input,
    .form-switch .form-check-input {
        transition: none;
    }
}

/* ===========================================================================
   PRINT
   =========================================================================== */

@media print {
    .form-control,
    .form-select {
        border: 1px solid var(--color-black);
    }
}