/* ========== STILI MODERNI PER AUTENTICAZIONE ========== */

/* CONTAINER PRINCIPALE FULLSCREEN */
.modern-auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    padding-bottom: 100px !important; /* SPAZIO per bottom nav FISSA */
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, 
        var(--primary-color) 0%, 
        var(--secondary-color) 50%, 
        var(--accent-color) 100%);
}

/* BACKGROUND ANIMATO CON ORBS */
.modern-auth-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 1;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, 
        rgba(255, 255, 255, 0.1), 
        rgba(255, 255, 255, 0.05));
    backdrop-filter: blur(20px);
    animation: float 6s ease-in-out infinite;
}

.orb-1 {
    width: 300px;
    height: 300px;
    top: -150px;
    left: -150px;
    animation-delay: 0s;
}

.orb-2 {
    width: 200px;
    height: 200px;
    top: 50%;
    right: -100px;
    animation-delay: 2s;
}

.orb-3 {
    width: 150px;
    height: 150px;
    bottom: -75px;
    left: 30%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

/* CARD PRINCIPALE */
.modern-auth-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-xl);
    position: relative;
    z-index: 2;
    animation: slideUpAuth 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

@keyframes slideUpAuth {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* HEADER CON LOGO */
.modern-auth-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.auth-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.logo-icon {
    display: none !important; /* NASCOSTO COMPLETAMENTE */
    visibility: hidden !important;
    opacity: 0 !important;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.logo-text {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.auth-tagline {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0;
    font-weight: 500;
}

/* TITOLO SEMPLICE */
.auth-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 var(--space-lg) 0;
    text-align: center;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* FORM MODERNO */
.modern-auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* INPUT GROUPS */
.modern-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.modern-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: var(--space-md);
    color: var(--text-secondary);
    font-size: 1.2rem;
    z-index: 2;
    transition: color 0.3s ease;
}

.modern-input {
    width: 100%;
    padding: var(--space-md) var(--space-md) var(--space-md) 3rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.9);
    transition: all 0.3s ease;
    outline: none;
}

.modern-input:focus {
    border-color: var(--primary-color);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(69, 183, 209, 0.1);
}

/* Label rimosse - non più necessarie */

.modern-input:focus ~ .input-icon {
    color: var(--primary-color);
}

/* SELECT MODERNO */
.modern-select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='currentColor' 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 1rem center;
    background-size: 1rem;
    padding-right: 3rem;
}

/* Label completamente rimosse */
.modern-label {
    display: none !important;
}

/* VALIDATION MESSAGES */
.modern-validation {
    color: var(--error-color);
    font-size: 0.85rem;
    font-weight: 500;
    margin-top: var(--space-xs);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.modern-validation::before {
    content: "⚠️";
    font-size: 0.8rem;
}

/* CHECKBOX MODERNO */
.modern-checkbox-group {
    display: flex;
    align-items: center;
    margin: var(--space-sm) 0;
}

.modern-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-primary);
    font-weight: 500;
}

.modern-checkbox input[type="checkbox"] {
    display: none;
}

.modern-checkbox .checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    background: var(--white);
}

.modern-checkbox input[type="checkbox"]:checked + .checkmark {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.modern-checkbox input[type="checkbox"]:checked + .checkmark::after {
    content: "✓";
    color: var(--white);
    font-size: 0.8rem;
    font-weight: bold;
}

/* BUTTON FULL WIDTH */
.btn-full {
    width: 100%;
    margin-top: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

/* ALERTS MODERNI */
.modern-alert {
    padding: var(--space-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 500;
    animation: slideDown 0.5s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modern-alert-success {
    background: rgba(76, 175, 80, 0.1);
    border: 1px solid rgba(76, 175, 80, 0.3);
    color: #2e7d32;
}

.modern-alert-error {
    background: rgba(244, 67, 54, 0.1);
    border: 1px solid rgba(244, 67, 54, 0.3);
    color: #c62828;
}

/* FOOTER LINKS */
.modern-auth-footer {
    text-align: center;
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-color);
}

.auth-link-text {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.auth-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.auth-link:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* RESPONSIVE DESIGN */
@media (max-width: 768px) {
    .modern-auth-container {
        padding: var(--space-sm);
    }
    
    .modern-auth-card {
        padding: var(--space-lg);
        max-width: 100%;
    }
    
    .logo-text {
        font-size: 2rem;
    }
    
    .logo-icon {
        font-size: 2.5rem;
    }
    
    .orb-1, .orb-2, .orb-3 {
        display: none; /* Nasconde gli orbs su mobile per performance */
    }
}

/* LOADING SPINNER */
.loading-spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid var(--white);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* FOCUS STATES MIGLIORATI */
.modern-input:focus,
.btn-modern:focus,
.auth-link:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* HOVER EFFECTS */
.modern-auth-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-2xl);
    transition: all 0.3s ease;
}