/**
 * ========================================
 * PASSWORD TOGGLE - MODERN CSS
 * ========================================
 * Design moderno con icona dentro il campo
 * Animazioni smooth e responsive
 * Compatibile con tema Edmo
 */

/* ========================================
   WRAPPER DEL CAMPO PASSWORD
   ======================================== */
.password-field-wrapper {
    position: relative;
    display: inline-block;
    width: 100%;
}

/* Assicura che il campo password occupi tutto lo spazio */
.password-field-wrapper input[type="password"],
.password-field-wrapper input[type="text"].password-toggle-processed {
    width: 100%;
    box-sizing: border-box;
}

/* ========================================
   PULSANTE TOGGLE
   ======================================== */
.password-toggle-btn {
    /* Positioning */
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    
    /* Layout */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    margin: 0;
    
    /* Style */
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    
    /* Interaction */
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10;
    
    /* Typography */
    font-size: 20px;
    color: #6c757d;
    
    /* Remove default button styles */
    outline: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

/* ========================================
   HOVER STATES - Desktop
   ======================================== */
@media (hover: hover) and (pointer: fine) {
    .password-toggle-btn:hover {
        background: rgba(0, 0, 0, 0.05);
        color: #495057;
        transform: translateY(-50%) scale(1.05);
    }
    
    .password-toggle-btn:hover i {
        transform: scale(1.1);
    }
}

/* ========================================
   ACTIVE/PRESSED STATE
   ======================================== */
.password-toggle-btn:active {
    background: rgba(0, 0, 0, 0.1);
    transform: translateY(-50%) scale(0.95);
}

/* ========================================
   FOCUS STATE - Accessibilità
   ======================================== */
.password-toggle-btn:focus {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

.password-toggle-btn:focus:not(:focus-visible) {
    outline: none;
}

.password-toggle-btn:focus-visible {
    outline: 2px solid #007bff;
    outline-offset: 2px;
    background: rgba(0, 123, 255, 0.1);
}

/* ========================================
   ICONA - Animazioni smooth
   ======================================== */
.password-toggle-btn i {
    transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    line-height: 1;
}

/* ========================================
   DARK MODE SUPPORT
   ======================================== */
@media (prefers-color-scheme: dark) {
    .password-toggle-btn {
        color: #adb5bd;
    }
    
    .password-toggle-btn:hover {
        background: rgba(255, 255, 255, 0.1);
        color: #dee2e6;
    }
    
    .password-toggle-btn:active {
        background: rgba(255, 255, 255, 0.15);
    }
}

/* ========================================
   MOODLE-SPECIFIC ADJUSTMENTS
   ======================================== */

/* Login form */
#page-login-index .password-field-wrapper {
    margin-bottom: 1rem;
}

/* Admin settings */
.path-admin .password-field-wrapper input {
    padding-right: 45px !important;
}

/* User profile */
.path-user .password-field-wrapper {
    max-width: 100%;
}

/* Modal forms */
.modal-body .password-field-wrapper {
    width: 100%;
}

/* ========================================
   RESPONSIVE - Mobile Optimization
   ======================================== */
@media (max-width: 768px) {
    .password-toggle-btn {
        /* Increase tap target size per Apple HIG / Material Design */
        width: 44px;
        height: 44px;
        right: 5px;
        font-size: 22px;
    }
    
    /* Aumenta padding del campo su mobile */
    .password-field-wrapper input {
        padding-right: 50px !important;
    }
}

/* ========================================
   TOUCH DEVICES - Miglior feedback visivo
   ======================================== */
@media (hover: none) and (pointer: coarse) {
    .password-toggle-btn:active {
        background: rgba(0, 0, 0, 0.15);
        transform: translateY(-50%) scale(0.9);
    }
    
    /* Rimuovi outline su touch per evitare doppio feedback */
    .password-toggle-btn:focus {
        outline: none;
    }
}

/* ========================================
   HIGH CONTRAST MODE - Accessibilità
   ======================================== */
@media (prefers-contrast: high) {
    .password-toggle-btn {
        border: 2px solid currentColor;
    }
    
    .password-toggle-btn:hover {
        background: currentColor;
        color: white;
    }
}

/* ========================================
   REDUCED MOTION - Accessibilità
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .password-toggle-btn,
    .password-toggle-btn i {
        transition: none;
    }
}

/* ========================================
   RTL (Right-to-Left) SUPPORT
   ======================================== */
html[dir="rtl"] .password-toggle-btn {
    right: auto;
    left: 10px;
}

html[dir="rtl"] .password-field-wrapper input {
    padding-right: 10px !important;
    padding-left: 45px !important;
}

@media (max-width: 768px) {
    html[dir="rtl"] .password-toggle-btn {
        left: 5px;
    }
    
    html[dir="rtl"] .password-field-wrapper input {
        padding-left: 50px !important;
    }
}

/* ========================================
   PRINT STYLES - Nascondi toggle
   ======================================== */
@media print {
    .password-toggle-btn {
        display: none !important;
    }
    
    .password-field-wrapper input {
        padding-right: 10px !important;
    }
}

/* ========================================
   COMPATIBILITY FIXES
   ======================================== */

/* Fix per campi in tabelle */
td .password-field-wrapper,
th .password-field-wrapper {
    display: block;
    width: 100%;
}

/* Fix per input group */
.input-group .password-field-wrapper {
    flex: 1;
}

/* Fix per campi inline */
.form-inline .password-field-wrapper {
    display: inline-block;
    width: auto;
    min-width: 200px;
}

/* ========================================
   LOADING STATE (opzionale)
   ======================================== */
.password-toggle-btn.loading {
    pointer-events: none;
    opacity: 0.5;
}

.password-toggle-btn.loading i {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   ERROR STATE - Campi con errore
   ======================================== */
.has-error .password-toggle-btn,
.error .password-toggle-btn,
input.error + .password-toggle-btn {
    color: #dc3545;
}

.has-error .password-toggle-btn:hover,
.error .password-toggle-btn:hover,
input.error + .password-toggle-btn:hover {
    color: #c82333;
    background: rgba(220, 53, 69, 0.1);
}

/* ========================================
   SUCCESS STATE - Campi validi
   ======================================== */
.has-success .password-toggle-btn,
input.valid + .password-toggle-btn {
    color: #28a745;
}

/* ========================================
   DISABLED STATE
   ======================================== */
.password-field-wrapper input:disabled + .password-toggle-btn,
.password-field-wrapper input[readonly] + .password-toggle-btn {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* ========================================
   EDMO THEME INTEGRATION
   ======================================== */

/* Match Edmo button hover colors */
.theme-edmo .password-toggle-btn:hover {
    background: rgba(var(--edmo-primary-rgb, 0, 123, 255), 0.1);
    color: var(--edmo-primary, #007bff);
}

/* Match Edmo focus colors */
.theme-edmo .password-toggle-btn:focus-visible {
    outline-color: var(--edmo-primary, #007bff);
    background: rgba(var(--edmo-primary-rgb, 0, 123, 255), 0.1);
}

/* ========================================
   PERFORMANCE OPTIMIZATION
   ======================================== */

/* Use GPU acceleration for transforms */
.password-toggle-btn {
    will-change: transform, background-color;
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Contain paint for better performance */
.password-field-wrapper {
    contain: layout style paint;
}