/* ========================================
   Imagify Form Components
   Glass Morphism Inputs & Controls
   ======================================== */

/* ========== FORM GROUPS ========== */
.form-group {
    margin-bottom: var(--spacing-4xl);
}

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

.form-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    letter-spacing: var(--letter-spacing-tight);
    margin-bottom: var(--spacing-lg);
}

.form-label-icon {
    display: flex;
    align-items: center;
}

.form-label-icon svg {
    width: 16px;
    height: 16px;
    color: var(--color-text-muted);
}

.form-label-required {
    color: var(--color-error);
    margin-left: 2px;
}

.form-hint {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
    line-height: var(--line-height-tight);
}

/* ========== TEXT INPUTS ========== */
.form-input {
    width: 100%;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border-input);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl) var(--spacing-2xl);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-tight);
    transition: all var(--transition-base);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-border-button);
    background: var(--color-bg-hover);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

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

/* Textarea */
textarea.form-input {
    min-height: 100px;
    resize: vertical;
    line-height: var(--line-height-normal);
}

textarea.form-input.large {
    min-height: 140px;
}

/* ========== SELECT DROPDOWN ========== */
.form-select {
    width: 100%;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border-input);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl) var(--spacing-2xl);
    padding-right: 44px;
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    font-weight: var(--font-weight-semibold);
    letter-spacing: var(--letter-spacing-tight);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='rgba(255,255,255,0.7)' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--spacing-2xl) center;
    transition: all var(--transition-base);
}

.form-select:focus {
    outline: none;
    border-color: var(--color-border-button);
    background-color: var(--color-bg-hover);
}

.form-select option {
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    padding: var(--spacing-xl);
}

/* ========== FILE UPLOAD ========== */
.file-upload-area {
    border: 2px dashed var(--color-border-card);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-5xl) var(--spacing-4xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
    background: var(--color-bg-input);
}

.file-upload-area:hover {
    border-color: var(--color-border-button);
    background: var(--color-bg-hover);
}

.file-upload-area.dragover {
    border-color: var(--color-active);
    background: var(--color-active-bg);
}

.file-upload-icon {
    font-size: 40px;
    margin-bottom: var(--spacing-xl);
    opacity: 0.6;
    display: flex;
    justify-content: center;
}

.file-upload-icon svg {
    width: 40px;
    height: 40px;
    color: var(--color-text-muted);
}

.file-upload-text {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.file-upload-hint {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
}

.file-upload-input {
    display: none;
}

/* File List */
.file-list {
    margin-top: var(--spacing-2xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.file-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: var(--gradient-card);
    backdrop-filter: blur(var(--blur-md));
    border: 1px solid var(--color-border-card);
    border-radius: var(--border-radius-md);
}

.file-item-icon {
    display: flex;
    align-items: center;
}

.file-item-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-text-secondary);
}

.file-item-info {
    flex: 1;
    min-width: 0;
}

.file-item-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-item-size {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    margin-top: 2px;
}

.file-item-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--color-error-bg);
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    color: var(--color-error);
    transition: all var(--transition-base);
}

.file-item-remove:hover {
    background: var(--color-error);
    color: var(--color-text-primary);
}

.file-item-remove svg {
    width: 16px;
    height: 16px;
}

/* ========== CHECKLIST ========== */
.form-checklist {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.form-checklist-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: var(--color-bg-input);
    border: 1px solid var(--color-border-input);
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.form-checklist-item:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-border-button);
}

.form-checklist-item.checked {
    background: var(--color-active-bg);
    border-color: var(--color-border-active);
}

.form-checkbox {
    width: 22px;
    height: 22px;
    border: 2px solid var(--color-border-button);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.form-checklist-item.checked .form-checkbox {
    background: var(--color-active);
    border-color: var(--color-active);
}

.form-checkbox svg {
    width: 14px;
    height: 14px;
    color: var(--color-text-primary);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.form-checklist-item.checked .form-checkbox svg {
    opacity: 1;
}

.form-checklist-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    letter-spacing: var(--letter-spacing-tight);
}

.form-checklist-item.checked .form-checklist-label {
    color: var(--color-active);
}

@media (max-width: 500px) {
    .form-checklist {
        grid-template-columns: 1fr;
    }
}

/* ========== TAG INPUT ========== */
.tag-input-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-xl) var(--spacing-2xl);
    background: var(--color-bg-input);
    border: 1px solid var(--color-border-input);
    border-radius: var(--border-radius-lg);
    min-height: 50px;
    cursor: text;
    transition: all var(--transition-base);
}

.tag-input-container:focus-within {
    border-color: var(--color-border-button);
    background: var(--color-bg-hover);
}

.tag-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--color-active-bg);
    border: 1px solid var(--color-border-active);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-active);
}

.tag-remove {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0;
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-base);
}

.tag-remove:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.tag-remove svg {
    width: 12px;
    height: 12px;
}

.tag-input {
    flex: 1;
    min-width: 120px;
    background: transparent;
    border: none;
    outline: none;
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    padding: var(--spacing-xs) 0;
}

.tag-input::placeholder {
    color: var(--color-text-muted);
}

/* ========== INLINE FIELDS ========== */
.form-inline-group {
    display: flex;
    gap: var(--spacing-xl);
    align-items: flex-start;
}

.form-inline-group .form-group {
    flex: 1;
}

.form-inline-prefix {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-muted);
    padding-top: var(--spacing-2xl);
    flex-shrink: 0;
    min-width: 60px;
}

@media (max-width: 600px) {
    .form-inline-group {
        flex-direction: column;
    }

    .form-inline-prefix {
        padding-top: 0;
        min-width: auto;
    }
}

/* ========== FORM ROWS ========== */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* ========== FORM DIVIDER ========== */
.form-divider {
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--color-border-card) 50%,
        transparent 100%
    );
    margin: var(--spacing-6xl) 0;
}

/* ========== VALIDATION STATES ========== */

/* Error State */
.form-group.error .form-input,
.form-group.error .form-select,
.form-group.error .tag-input-container {
    border-color: var(--color-error);
}

.form-group.error .form-input:focus,
.form-group.error .form-select:focus {
    background: var(--color-error-bg);
}

.form-error {
    display: none;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-error);
    margin-top: var(--spacing-sm);
}

.form-group.error .form-error {
    display: block;
}

/* Success State */
.form-group.success .form-input,
.form-group.success .form-select {
    border-color: var(--color-success);
}

.form-group.success .form-input:focus,
.form-group.success .form-select:focus {
    background: var(--color-success-bg);
}

/* ========== LOADING STATE ========== */
.form-input.loading,
.form-select.loading {
    background-image: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.05) 0%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0.05) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ========== RANGE SLIDER ========== */
.form-range {
    width: 100%;
    height: 6px;
    background: var(--color-bg-input);
    border-radius: 3px;
    appearance: none;
    cursor: pointer;
}

.form-range::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-button-primary-bg);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-base);
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.form-range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-button-primary-bg);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

/* ========== TOGGLE SWITCH ========== */
.form-toggle {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    cursor: pointer;
}

.toggle-switch {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border-input);
    border-radius: var(--border-radius-full);
    transition: all var(--transition-base);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--color-text-muted);
    border-radius: 50%;
    transition: all var(--transition-base);
}

.form-toggle.active .toggle-switch {
    background: var(--color-active-bg);
    border-color: var(--color-active);
}

.form-toggle.active .toggle-switch::after {
    left: 22px;
    background: var(--color-active);
}

.toggle-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
}

/* ========== FORM ACTIONS ========== */
.form-actions {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: flex-end;
    margin-top: var(--spacing-5xl);
}

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

.form-actions-stretch .btn {
    flex: 1;
}

@media (max-width: 480px) {
    .form-actions {
        flex-direction: column;
    }

    .form-actions .btn {
        width: 100%;
    }
}

/* ========== ACCESSIBILITY ========== */
@media (prefers-reduced-motion: reduce) {
    .form-input,
    .form-select,
    .form-checkbox,
    .form-checklist-item,
    .tag-item,
    .toggle-switch,
    .toggle-switch::after,
    .file-upload-area,
    .file-item-remove {
        transition: none !important;
    }

    .form-input.loading,
    .form-select.loading {
        animation: none;
    }
}

/* Focus states */
.form-input:focus-visible,
.form-select:focus-visible,
.form-checklist-item:focus-visible,
.form-toggle:focus-visible,
.file-upload-area:focus-visible {
    outline: 2px solid var(--color-active);
    outline-offset: 2px;
}