/**
 * FZTM Platform - Enhanced Number Input Controls Styles
 * Comprehensive styling for number inputs with steppers, validation, and animations
 * @version 2.0.0
 */

/* ===================================
   NUMBER INPUT WRAPPER
   =================================== */
.number-input-wrapper {
    position: relative;
    display: inline-block;
    width: 100%;
}

.number-input-wrapper input[type="number"] {
    width: 100%;
    padding-right: 80px; /* Make room for steppers */
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

/* Hide browser default spinners */
.number-input-wrapper input[type="number"]::-webkit-inner-spin-button,
.number-input-wrapper input[type="number"]::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.number-input-wrapper input[type="number"] {
    -moz-appearance: textfield;
}

/* ===================================
   STEPPER BUTTONS
   =================================== */
.number-steppers {
    position: absolute;
    right: 1px;
    top: 1px;
    bottom: 1px;
    display: flex;
    flex-direction: column;
    border-radius: 0 0.375rem 0.375rem 0;
    overflow: hidden;
}

.number-stepper {
    flex: 1;
    width: 36px;
    border: none;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    padding: 0;
}

.number-stepper:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
    transform: scale(1.05);
}

.number-stepper:active {
    transform: scale(0.95);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.number-stepper:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: #e9ecef;
    color: #6c757d;
}

.number-stepper.increment {
    border-bottom: 1px solid rgba(255,255,255,0.2);
    border-radius: 0 0.375rem 0 0;
}

.number-stepper.decrement {
    border-radius: 0 0 0.375rem 0;
}

/* Alternative flat style */
.number-input-wrapper.flat .number-stepper {
    background: #f8f9fa;
    color: #495057;
    border-left: 1px solid #dee2e6;
}

.number-input-wrapper.flat .number-stepper:hover {
    background: #e9ecef;
}

/* ===================================
   VALIDATION STATES
   =================================== */
.number-input-wrapper input.is-valid {
    border-color: #198754 !important;
    padding-right: 80px;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='%23198754' d='M13.854 3.646a.5.5 0 0 1 0 .708l-7 7a.5.5 0 0 1-.708 0l-3.5-3.5a.5.5 0 1 1 .708-.708L6.5 10.293l6.646-6.647a.5.5 0 0 1 .708 0z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(2.75rem + 0.375em) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.number-input-wrapper input.is-invalid {
    border-color: #dc3545 !important;
    padding-right: 80px;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='%23dc3545' d='M16 8A8 8 0 1 1 0 8a8 8 0 0 1 16 0zM8 4a.905.905 0 0 0-.9.995l.35 3.507a.552.552 0 0 0 1.1 0l.35-3.507A.905.905 0 0 0 8 4zm.002 6a1 1 0 1 0 0 2 1 1 0 0 0 0-2z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(2.75rem + 0.375em) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

/* Validation message */
.validation-message {
    display: none;
    font-size: 0.875rem;
    color: #dc3545;
    margin-top: 0.25rem;
    animation: slideDown 0.3s ease;
}

.validation-message.show {
    display: block;
}

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

/* ===================================
   UNIT LABELS
   =================================== */
.number-unit-label {
    position: absolute;
    right: 45px;
    top: 50%;
    transform: translateY(-50%);
    font-weight: 600;
    color: #6c757d;
    font-size: 0.875rem;
    pointer-events: none;
    z-index: 1;
}

.number-input-wrapper input:focus ~ .number-unit-label {
    color: #667eea;
}

/* ===================================
   STATE INDICATORS
   =================================== */
.number-input-wrapper.at-min input,
.number-input-wrapper.at-max input {
    border-color: #ffc107;
    background-color: #fff3cd;
}

.number-input-wrapper.negative input {
    color: #dc3545;
}

.number-input-wrapper.positive input {
    color: #198754;
}

.number-input-wrapper.at-zero input {
    color: #6c757d;
}

/* Disable steppers at limits */
.number-input-wrapper.at-min .number-stepper.decrement,
.number-input-wrapper.at-max .number-stepper.increment {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* ===================================
   ANIMATIONS
   =================================== */
.number-input-wrapper input.value-changed {
    animation: valueChange 0.3s ease;
}

@keyframes valueChange {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Ripple effect */
.input-ripple {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 0.375rem;
    pointer-events: none;
    overflow: hidden;
}

.input-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.number-input-wrapper input:focus ~ .input-ripple::after {
    width: 300px;
    height: 300px;
}

/* ===================================
   FOCUS STATES
   =================================== */
.number-input-wrapper input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    outline: none;
}

/* ===================================
   LOADING STATE
   =================================== */
.number-input-wrapper.loading input {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Cpath fill='%23667eea' d='M20 0a20 20 0 1 0 20 20A20 20 0 0 0 20 0zm0 36a16 16 0 1 1 16-16 16 16 0 0 1-16 16z' opacity='0.2'/%3E%3Cpath fill='%23667eea' d='M36 20a16 16 0 0 0-32 0h4a12 12 0 0 1 24 0z'%3E%3CanimateTransform attributeName='transform' type='rotate' from='0 20 20' to='360 20 20' dur='1s' repeatCount='indefinite'/%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right calc(2.75rem + 0.375em) center;
    background-size: 20px 20px;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 768px) {
    .number-steppers {
        width: 64px;
    }
    
    .number-stepper {
        width: 32px;
    }
    
    .number-input-wrapper input[type="number"] {
        padding-right: 70px;
    }
}

/* ===================================
   ACCESSIBILITY ENHANCEMENTS
   =================================== */
@media (prefers-reduced-motion: reduce) {
    .number-input-wrapper input,
    .number-stepper,
    .validation-message,
    .input-ripple::after {
        animation: none !important;
        transition: none !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .number-stepper {
        border: 2px solid currentColor;
    }
    
    .number-input-wrapper input {
        border-width: 2px;
    }
}

/* Focus visible for keyboard navigation */
.number-stepper:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

.number-input-wrapper input:focus-visible {
    outline: 3px solid #667eea;
    outline-offset: 2px;
}

/* ===================================
   DARK MODE SUPPORT - DISABLED
   Always use light theme regardless of system preference
   =================================== */
@media (prefers-color-scheme: dark) {
    .number-input-wrapper input[type="number"] {
        background-color: #ffffff !important;
        color: #4b5563 !important;
        border-color: #d1d5db !important;
    }
    
    .number-stepper {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    }
    
    .number-unit-label {
        color: #6b7280 !important;
    }
    
    .validation-message {
        color: #dc2626 !important;
    }
}

/* ===================================
   PRINT STYLES
   =================================== */
@media print {
    .number-steppers {
        display: none;
    }
    
    .number-input-wrapper input[type="number"] {
        padding-right: 0.75rem;
        border: 1px solid #000;
    }
}

/* ===================================
   TOOLTIPS FOR NUMBER INPUTS
   =================================== */
.number-input-wrapper[data-tooltip] {
    position: relative;
}

.number-input-wrapper[data-tooltip]:hover::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 1rem;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    font-size: 0.875rem;
    border-radius: 0.375rem;
    white-space: nowrap;
    z-index: 1000;
    margin-bottom: 0.5rem;
    animation: tooltipFadeIn 0.2s ease;
}

.number-input-wrapper[data-tooltip]:hover::after {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: rgba(0, 0, 0, 0.9);
    z-index: 1000;
}

@keyframes tooltipFadeIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}