/**
 * ProCargo Forms Styles
 * Validation styles, field states, multi-step forms
 * 
 * @package ProCargo
 * @version 2.0.0
 */

/* ==========================================================================
   CSS Variables
   ========================================================================== */
:root {
    /* Form colors */
    --procargo-input-bg: #ffffff;
    --procargo-input-border: #d1d5db;
    --procargo-input-focus: #0066b3;
    --procargo-input-text: #1f2937;
    --procargo-input-placeholder: #9ca3af;
    --procargo-label-color: #374151;
    
    /* Validation colors */
    --procargo-success: #10b981;
    --procargo-success-bg: #d1fae5;
    --procargo-error: #ef4444;
    --procargo-error-bg: #fee2e2;
    --procargo-warning: #f59e0b;
    --procargo-warning-bg: #fef3c7;
    --procargo-info: #3b82f6;
    --procargo-info-bg: #dbeafe;
    
    /* Spacing */
    --procargo-input-padding: 0.75rem 1rem;
    --procargo-input-radius: 0.5rem;
    --procargo-form-gap: 1.5rem;
}

/* Dark theme */
.dark-theme,
[data-theme="dark"] {
    --procargo-input-bg: #1f2937;
    --procargo-input-border: #374151;
    --procargo-input-focus: #60a5fa;
    --procargo-input-text: #f9fafb;
    --procargo-input-placeholder: #6b7280;
    --procargo-label-color: #e5e7eb;
}

/* ==========================================================================
   Form Container
   ========================================================================== */
.procargo-form {
    max-width: 100%;
}

.procargo-form-section {
    margin-bottom: var(--procargo-form-gap);
}

.procargo-form-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--procargo-label-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--procargo-input-border);
}

.procargo-form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.procargo-form-row > .procargo-form-group {
    flex: 1;
    min-width: 200px;
}

.procargo-form-row.two-columns > .procargo-form-group {
    flex: 0 0 calc(50% - 0.5rem);
}

.procargo-form-row.three-columns > .procargo-form-group {
    flex: 0 0 calc(33.333% - 0.667rem);
}

@media (max-width: 768px) {
    .procargo-form-row.two-columns > .procargo-form-group,
    .procargo-form-row.three-columns > .procargo-form-group {
        flex: 0 0 100%;
    }
}

/* ==========================================================================
   Form Group
   ========================================================================== */
.procargo-form-group {
    margin-bottom: 1rem;
}

.procargo-form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--procargo-label-color);
    margin-bottom: 0.5rem;
}

.procargo-form-group label .required {
    color: var(--procargo-error);
    margin-left: 0.25rem;
}

/* ==========================================================================
   Input Base Styles
   ========================================================================== */
.procargo-input,
.procargo-select,
.procargo-textarea {
    width: 100%;
    padding: var(--procargo-input-padding);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--procargo-input-text);
    background-color: var(--procargo-input-bg);
    border: 1px solid var(--procargo-input-border);
    border-radius: var(--procargo-input-radius);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    appearance: none;
}

.procargo-input::placeholder,
.procargo-textarea::placeholder {
    color: var(--procargo-input-placeholder);
}

.procargo-input:focus,
.procargo-select:focus,
.procargo-textarea:focus {
    outline: none;
    border-color: var(--procargo-input-focus);
    box-shadow: 0 0 0 3px rgba(0, 102, 179, 0.15);
}

.dark-theme .procargo-input:focus,
.dark-theme .procargo-select:focus,
.dark-theme .procargo-textarea:focus,
[data-theme="dark"] .procargo-input:focus,
[data-theme="dark"] .procargo-select:focus,
[data-theme="dark"] .procargo-textarea:focus {
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.25);
}

.procargo-input:disabled,
.procargo-select:disabled,
.procargo-textarea:disabled {
    background-color: #f3f4f6;
    cursor: not-allowed;
    opacity: 0.7;
}

.dark-theme .procargo-input:disabled,
.dark-theme .procargo-select:disabled,
.dark-theme .procargo-textarea:disabled,
[data-theme="dark"] .procargo-input:disabled,
[data-theme="dark"] .procargo-select:disabled,
[data-theme="dark"] .procargo-textarea:disabled {
    background-color: #111827;
}

/* ==========================================================================
   Textarea
   ========================================================================== */
.procargo-textarea {
    min-height: 120px;
    resize: vertical;
}

/* ==========================================================================
   Select
   ========================================================================== */
.procargo-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.25rem;
    padding-right: 2.5rem;
}

/* ==========================================================================
   Checkbox & Radio
   ========================================================================== */
.procargo-checkbox-group,
.procargo-radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.procargo-checkbox-label,
.procargo-radio-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    color: var(--procargo-input-text);
}

.procargo-checkbox,
.procargo-radio {
    width: 1.125rem;
    height: 1.125rem;
    border: 1px solid var(--procargo-input-border);
    background-color: var(--procargo-input-bg);
    cursor: pointer;
    appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.procargo-checkbox {
    border-radius: 0.25rem;
}

.procargo-radio {
    border-radius: 50%;
}

.procargo-checkbox:checked,
.procargo-radio:checked {
    background-color: var(--procargo-input-focus);
    border-color: var(--procargo-input-focus);
}

.procargo-checkbox:checked::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e");
    background-size: contain;
}

.procargo-radio:checked::before {
    content: '';
    width: 0.5rem;
    height: 0.5rem;
    background-color: white;
    border-radius: 50%;
}

.procargo-checkbox:focus,
.procargo-radio:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 102, 179, 0.15);
}

/* ==========================================================================
   Validation States
   ========================================================================== */

/* Valid */
.procargo-input.is-valid,
.procargo-select.is-valid,
.procargo-textarea.is-valid {
    border-color: var(--procargo-success);
}

.procargo-input.is-valid:focus,
.procargo-select.is-valid:focus,
.procargo-textarea.is-valid:focus {
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

/* Invalid */
.procargo-input.is-invalid,
.procargo-select.is-invalid,
.procargo-textarea.is-invalid {
    border-color: var(--procargo-error);
}

.procargo-input.is-invalid:focus,
.procargo-select.is-invalid:focus,
.procargo-textarea.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

/* ==========================================================================
   Error & Help Messages
   ========================================================================== */
.procargo-error-message {
    display: none;
    font-size: 0.75rem;
    color: var(--procargo-error);
    margin-top: 0.375rem;
}

.procargo-form-group.has-error .procargo-error-message {
    display: block;
}

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

.procargo-help-text {
    font-size: 0.75rem;
    color: var(--procargo-input-placeholder);
    margin-top: 0.375rem;
}

/* ==========================================================================
   Input Group (with icons/buttons)
   ========================================================================== */
.procargo-input-group {
    position: relative;
    display: flex;
}

.procargo-input-group .procargo-input {
    flex: 1;
}

.procargo-input-group-prepend,
.procargo-input-group-append {
    display: flex;
    align-items: center;
    padding: 0 1rem;
    background-color: #f3f4f6;
    border: 1px solid var(--procargo-input-border);
    color: var(--procargo-input-placeholder);
}

.dark-theme .procargo-input-group-prepend,
.dark-theme .procargo-input-group-append,
[data-theme="dark"] .procargo-input-group-prepend,
[data-theme="dark"] .procargo-input-group-append {
    background-color: #111827;
}

.procargo-input-group-prepend {
    border-right: none;
    border-radius: var(--procargo-input-radius) 0 0 var(--procargo-input-radius);
}

.procargo-input-group .procargo-input:first-child:not(:only-child) {
    border-radius: var(--procargo-input-radius) 0 0 var(--procargo-input-radius);
}

.procargo-input-group-append {
    border-left: none;
    border-radius: 0 var(--procargo-input-radius) var(--procargo-input-radius) 0;
}

.procargo-input-group .procargo-input:last-child:not(:only-child) {
    border-radius: 0 var(--procargo-input-radius) var(--procargo-input-radius) 0;
}

/* Input with icon (legacy wrapper pattern — used in old widgets only) */
.procargo-input-icon-group {
    position: relative;
}

.procargo-input-icon-group .procargo-input {
    padding-left: 2.75rem;
}

.procargo-input-icon-group .icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1.25rem;
    height: 1.25rem;
    color: var(--procargo-input-placeholder);
    pointer-events: none;
}

/* ==========================================================================
   Icon-aware input variants — global override
   These classes are used by all widgets that have icon-prefixed inputs.
   The base .procargo-input rule above uses shorthand padding which would
   reset padding-left; these rules restore it with higher specificity.
   ========================================================================== */

/* Used by shipment-create.js and create.php */
input.procargo-input-with-icon,
select.procargo-select-with-icon,
textarea.procargo-textarea-with-icon {
    padding-left: 3rem !important;
}

/* Used by orders/simplified create forms */
.procargo-input-icon-wrapper input,
.procargo-input-icon-wrapper select,
.procargo-input-icon-wrapper textarea {
    padding-left: 3rem !important;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.procargo-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5;
    border: none;
    border-radius: var(--procargo-input-radius);
    cursor: pointer;
    transition: all 0.15s ease-in-out;
    text-decoration: none;
}

.procargo-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Primary button */
.procargo-btn-primary {
    background: linear-gradient(135deg, #0066b3 0%, #004d99 100%);
    color: white;
}

.procargo-btn-primary:hover:not(:disabled) {
    background: linear-gradient(135deg, #004d99 0%, #003366 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 102, 179, 0.3);
}

/* Secondary button */
.procargo-btn-secondary {
    background-color: #6b7280;
    color: white;
}

.procargo-btn-secondary:hover:not(:disabled) {
    background-color: #4b5563;
}

/* Outline button */
.procargo-btn-outline {
    background-color: transparent;
    border: 2px solid var(--procargo-input-focus);
    color: var(--procargo-input-focus);
}

.procargo-btn-outline:hover:not(:disabled) {
    background-color: var(--procargo-input-focus);
    color: white;
}

/* Success button */
.procargo-btn-success {
    background-color: var(--procargo-success);
    color: white;
}

.procargo-btn-success:hover:not(:disabled) {
    background-color: #059669;
}

/* Danger button */
.procargo-btn-danger {
    background-color: var(--procargo-error);
    color: white;
}

.procargo-btn-danger:hover:not(:disabled) {
    background-color: #dc2626;
}

/* Button sizes */
.procargo-btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.procargo-btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.procargo-btn-block {
    display: flex;
    width: 100%;
}

/* Loading state */
.procargo-btn.is-loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.procargo-btn.is-loading::after {
    content: '';
    position: absolute;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-right-color: currentColor;
    border-radius: 50%;
    animation: procargo-spin 0.6s linear infinite;
}

.procargo-btn-primary.is-loading::after,
.procargo-btn-secondary.is-loading::after,
.procargo-btn-success.is-loading::after,
.procargo-btn-danger.is-loading::after {
    border-top-color: white;
    border-right-color: white;
}

@keyframes procargo-spin {
    to {
        transform: rotate(360deg);
    }
}

/* ==========================================================================
   Multi-Step Form
   ========================================================================== */
.procargo-multistep {
    position: relative;
}

/* Step indicators */
.procargo-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    counter-reset: step;
}

.procargo-step {
    flex: 1;
    position: relative;
    text-align: center;
}

.procargo-step::before {
    content: counter(step);
    counter-increment: step;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    margin: 0 auto 0.5rem;
    font-weight: 600;
    color: var(--procargo-input-placeholder);
    background-color: #f3f4f6;
    border: 2px solid var(--procargo-input-border);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.dark-theme .procargo-step::before,
[data-theme="dark"] .procargo-step::before {
    background-color: #1f2937;
}

.procargo-step::after {
    content: '';
    position: absolute;
    top: 1.25rem;
    left: calc(50% + 1.5rem);
    width: calc(100% - 3rem);
    height: 2px;
    background-color: var(--procargo-input-border);
}

.procargo-step:last-child::after {
    display: none;
}

.procargo-step-title {
    font-size: 0.875rem;
    color: var(--procargo-input-placeholder);
}

/* Active step */
.procargo-step.is-active::before {
    color: white;
    background-color: var(--procargo-input-focus);
    border-color: var(--procargo-input-focus);
}

.procargo-step.is-active .procargo-step-title {
    color: var(--procargo-input-focus);
    font-weight: 500;
}

/* Completed step */
.procargo-step.is-completed::before {
    content: '✓';
    color: white;
    background-color: var(--procargo-success);
    border-color: var(--procargo-success);
}

.procargo-step.is-completed::after {
    background-color: var(--procargo-success);
}

.procargo-step.is-completed .procargo-step-title {
    color: var(--procargo-success);
}

/* Step content */
.procargo-step-content {
    display: none;
}

.procargo-step-content.is-active {
    display: block;
    animation: procargo-fadeIn 0.3s ease;
}

@keyframes procargo-fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Step navigation */
.procargo-step-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--procargo-input-border);
}

.procargo-step-nav .procargo-btn:only-child {
    margin-left: auto;
}

/* ==========================================================================
   Form Alerts
   ========================================================================== */
.procargo-alert {
    padding: 1rem 1.25rem;
    border-radius: var(--procargo-input-radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.procargo-alert-icon {
    flex-shrink: 0;
    width: 1.25rem;
    height: 1.25rem;
}

.procargo-alert-content {
    flex: 1;
}

.procargo-alert-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.procargo-alert-success {
    background-color: var(--procargo-success-bg);
    color: #065f46;
    border: 1px solid var(--procargo-success);
}

.procargo-alert-error {
    background-color: var(--procargo-error-bg);
    color: #991b1b;
    border: 1px solid var(--procargo-error);
}

.procargo-alert-warning {
    background-color: var(--procargo-warning-bg);
    color: #92400e;
    border: 1px solid var(--procargo-warning);
}

.procargo-alert-info {
    background-color: var(--procargo-info-bg);
    color: #1e40af;
    border: 1px solid var(--procargo-info);
}

.procargo-alert-dismiss {
    flex-shrink: 0;
    width: 1.5rem;
    height: 1.5rem;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity 0.15s;
}

.procargo-alert-dismiss:hover {
    opacity: 1;
}

/* ==========================================================================
   Password Strength Indicator
   ========================================================================== */
.procargo-password-strength {
    margin-top: 0.5rem;
}

.procargo-password-strength-bar {
    height: 4px;
    background-color: #e5e7eb;
    border-radius: 2px;
    overflow: hidden;
}

.procargo-password-strength-fill {
    height: 100%;
    transition: width 0.3s ease, background-color 0.3s ease;
}

.procargo-password-strength[data-strength="0"] .procargo-password-strength-fill {
    width: 0%;
}

.procargo-password-strength[data-strength="1"] .procargo-password-strength-fill {
    width: 25%;
    background-color: var(--procargo-error);
}

.procargo-password-strength[data-strength="2"] .procargo-password-strength-fill {
    width: 50%;
    background-color: var(--procargo-warning);
}

.procargo-password-strength[data-strength="3"] .procargo-password-strength-fill {
    width: 75%;
    background-color: #84cc16;
}

.procargo-password-strength[data-strength="4"] .procargo-password-strength-fill {
    width: 100%;
    background-color: var(--procargo-success);
}

.procargo-password-strength-text {
    font-size: 0.75rem;
    margin-top: 0.25rem;
    color: var(--procargo-input-placeholder);
}

/* ==========================================================================
   Character Counter
   ========================================================================== */
.procargo-char-counter {
    display: flex;
    justify-content: flex-end;
    font-size: 0.75rem;
    color: var(--procargo-input-placeholder);
    margin-top: 0.25rem;
}

.procargo-char-counter.is-warning {
    color: var(--procargo-warning);
}

.procargo-char-counter.is-error {
    color: var(--procargo-error);
}

/* ==========================================================================
   Form Progress
   ========================================================================== */
.procargo-form-progress {
    margin-bottom: 1.5rem;
}

.procargo-form-progress-bar {
    height: 8px;
    background-color: #e5e7eb;
    border-radius: 4px;
    overflow: hidden;
}

.dark-theme .procargo-form-progress-bar,
[data-theme="dark"] .procargo-form-progress-bar {
    background-color: #374151;
}

.procargo-form-progress-fill {
    height: 100%;
    background: linear-gradient(135deg, #0066b3 0%, #004d99 100%);
    transition: width 0.3s ease;
}

.procargo-form-progress-text {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--procargo-input-placeholder);
    margin-top: 0.5rem;
}

/* ==========================================================================
   Floating Labels
   ========================================================================== */
.procargo-floating-label {
    position: relative;
}

.procargo-floating-label .procargo-input,
.procargo-floating-label .procargo-select,
.procargo-floating-label .procargo-textarea {
    padding-top: 1.5rem;
    padding-bottom: 0.5rem;
}

.procargo-floating-label label {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    transition: all 0.15s ease;
    background-color: var(--procargo-input-bg);
    padding: 0 0.25rem;
    margin: 0;
}

.procargo-floating-label .procargo-input:focus ~ label,
.procargo-floating-label .procargo-input:not(:placeholder-shown) ~ label,
.procargo-floating-label .procargo-select:focus ~ label,
.procargo-floating-label .procargo-select:not([value=""]) ~ label,
.procargo-floating-label .procargo-textarea:focus ~ label,
.procargo-floating-label .procargo-textarea:not(:placeholder-shown) ~ label {
    top: 0;
    font-size: 0.75rem;
    color: var(--procargo-input-focus);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 640px) {
    .procargo-form-row {
        flex-direction: column;
    }
    
    .procargo-form-row > .procargo-form-group {
        flex: 0 0 100%;
    }
    
    .procargo-step-nav {
        flex-direction: column;
    }
    
    .procargo-step-nav .procargo-btn {
        width: 100%;
    }
    
    .procargo-steps {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .procargo-step::after {
        display: none;
    }
    
    .procargo-step {
        display: flex;
        align-items: center;
        gap: 1rem;
        text-align: left;
    }
    
    .procargo-step::before {
        margin: 0;
        flex-shrink: 0;
    }
}