/* NQ Tenpin Booking System - Form Components */

/* Form Container */
.form {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* Form Group */
.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.form-row--3 {
    grid-template-columns: repeat(3, 1fr);
}

.form-row--4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Labels */
.form-label {
    font-weight: var(--font-medium);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

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

/* Input Base Styles */
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    height: var(--input-height);
    padding: 0 var(--space-4);
    background: var(--bg-input);
    border: 2px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: var(--text-base);
    transition: all var(--transition-fast);
}

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

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--border-medium);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

/* Input Sizes */
.form-input--sm,
.form-select--sm {
    height: var(--input-height-sm);
    padding: 0 var(--space-3);
    font-size: var(--text-sm);
}

.form-input--lg,
.form-select--lg {
    height: var(--input-height-lg);
    padding: 0 var(--space-5);
    font-size: var(--text-lg);
}

/* Input with Icon */
.form-input-wrapper {
    position: relative;
}

.form-input-wrapper .form-input {
    padding-left: var(--space-10);
}

.form-input-wrapper--right .form-input {
    padding-left: var(--space-4);
    padding-right: var(--space-10);
}

.form-input-icon {
    position: absolute;
    left: var(--space-4);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--transition-fast);
}

.form-input-wrapper--right .form-input-icon {
    left: auto;
    right: var(--space-4);
}

.form-input-wrapper .form-input:focus + .form-input-icon,
.form-input-wrapper:focus-within .form-input-icon {
    color: var(--primary);
}

/* Select Dropdown */
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%236b6b80' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    background-size: 20px;
    padding-right: var(--space-10);
    cursor: pointer;
}

.form-select:focus {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2300d4ff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
}

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

/* Textarea */
.form-textarea {
    height: auto;
    min-height: 120px;
    padding: var(--space-3) var(--space-4);
    resize: vertical;
    line-height: var(--leading-relaxed);
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.form-check-input {
    width: 20px;
    height: 20px;
    appearance: none;
    background: var(--bg-input);
    border: 2px solid var(--border-medium);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    position: relative;
}

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

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

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

.form-check-input:checked::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.form-check-input[type="checkbox"]:checked::after {
    width: 6px;
    height: 10px;
    border: 2px solid var(--bg-darkest);
    border-top: none;
    border-left: none;
    transform: translate(-50%, -60%) rotate(45deg);
}

.form-check-input[type="radio"]:checked::after {
    width: 8px;
    height: 8px;
    background: var(--bg-darkest);
    border-radius: var(--radius-full);
}

.form-check-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    user-select: none;
}

/* Switch Toggle */
.form-switch {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
}

.form-switch__input {
    width: 48px;
    height: 26px;
    appearance: none;
    background: var(--bg-elevated);
    border-radius: var(--radius-full);
    position: relative;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.form-switch__input::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: var(--text-muted);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.form-switch__input:checked {
    background: var(--primary);
}

.form-switch__input:checked::after {
    left: 25px;
    background: var(--bg-darkest);
}

.form-switch__label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

/* Number Stepper */
.form-stepper {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.form-stepper__btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 2px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--text-xl);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-stepper__btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.form-stepper__btn:active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--bg-darkest);
}

.form-stepper__input {
    width: 80px;
    text-align: center;
    font-weight: var(--font-semibold);
    font-size: var(--text-xl);
}

/* Date/Time Input */
.form-input[type="date"],
.form-input[type="time"],
.form-input[type="datetime-local"] {
    color-scheme: dark;
}

/* File Input */
.form-file {
    position: relative;
}

.form-file__input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.form-file__label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    height: var(--input-height);
    padding: 0 var(--space-4);
    background: var(--bg-card);
    border: 2px dashed var(--border-medium);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-file__label:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.form-file__input:focus + .form-file__label {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

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

.form-group--error .form-input:focus,
.form-group--error .form-select:focus,
.form-group--error .form-textarea:focus {
    box-shadow: 0 0 0 3px var(--error-glow);
}

.form-error {
    color: var(--error);
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

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

.form-group--success .form-input:focus,
.form-group--success .form-select:focus {
    box-shadow: 0 0 0 3px var(--success-glow);
}

/* Helper Text */
.form-help {
    font-size: var(--text-sm);
    color: var(--text-muted);
}

.form-help a {
    color: var(--primary);
}

/* Form Section */
.form-section {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.02);
}

.form-section__title {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--border-subtle);
}

.form-section__number {
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: var(--font-bold);
    font-size: var(--text-sm);
    color: var(--bg-darkest);
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--space-4);
    padding-top: var(--space-6);
    border-top: 1px solid var(--border-subtle);
    margin-top: var(--space-6);
}

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

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

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

/* Floating Label */
.form-floating {
    position: relative;
}

.form-floating .form-input {
    padding-top: var(--space-6);
    padding-bottom: var(--space-2);
}

.form-floating .form-label {
    position: absolute;
    top: 50%;
    left: var(--space-4);
    transform: translateY(-50%);
    transition: all var(--transition-fast);
    pointer-events: none;
    color: var(--text-muted);
}

.form-floating .form-input:focus + .form-label,
.form-floating .form-input:not(:placeholder-shown) + .form-label {
    top: var(--space-2);
    transform: translateY(0);
    font-size: var(--text-xs);
    color: var(--primary);
}

/* Input Group */
.input-group {
    display: flex;
}

.input-group .form-input {
    border-radius: 0;
}

.input-group .form-input:first-child {
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.input-group .form-input:last-child {
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

.input-group__addon {
    display: flex;
    align-items: center;
    padding: 0 var(--space-4);
    background: var(--bg-elevated);
    border: 2px solid var(--border-subtle);
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.input-group__addon:first-child {
    border-right: none;
    border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.input-group__addon:last-child {
    border-left: none;
    border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

/* Range Input */
.form-range {
    width: 100%;
    height: 6px;
    appearance: none;
    background: var(--bg-elevated);
    border-radius: var(--radius-full);
    cursor: pointer;
}

.form-range::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-glow-primary);
}

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
}

/* Responsive */
@media (max-width: 640px) {
    .form-row,
    .form-row--3,
    .form-row--4 {
        grid-template-columns: 1fr;
    }
    
    .form-stepper {
        justify-content: center;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}