/* =================================
   FOGLIO DI STILE SOLO PER LA HOMEPAGE
   ================================= */

/* --- Variabili Colori Vivaci --- */
:root {
    --testo-home: #ffffff;
    --testo-home-opaco: #ffffffb0;
    --sfondo-card-home: rgba(26, 26, 40, 0.75);
    --bordo-card-home: rgba(255, 255, 255, 0.1);
    
    --cassa-accent: #00b4d8;
    --report-accent: #4ade80;
    --admin-accent: #f59e0b;

    --shadow-color-home: rgba(0, 0, 0, 0.3);
    --radius-grande: 20px;
}

* { box-sizing: border-box; }
html { height: 100%; }

/* --- Sfondo Animato e Font --- */
body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    color: var(--testo-home);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    
    /* Gradiente animato */
    background: linear-gradient(135deg, 
        #020024, 
        #090979, 
        #00d4ff
    );
    background-size: 400% 400%;
    animation: animated-gradient 15s ease infinite;
}

/* Animazione per lo sfondo */
@keyframes animated-gradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* --- Alert per Sviluppo --- */
.dev-alert {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto 20px;
    padding: 15px 20px;
    background: rgba(245, 158, 11, 0.15);
    border: 1px solid rgba(245, 158, 11, 0.4);
    border-radius: 12px;
    text-align: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.dev-alert p {
    margin: 0;
    color: #fbbf24;
    font-size: 1rem;
    line-height: 1.5;
}

.dev-alert em {
    font-style: italic;
}

/* --- Header Moderno --- */
.modern-header {
    width: 100%;
    padding: 40px 20px;
    text-align: center;
}
.modern-header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -1px;
    color: var(--testo-home);
}
.modern-header p {
    font-size: 1.25rem;
    font-weight: 300;
    margin: 5px 0 0;
    color: var(--testo-home-opaco);
}

/* --- Griglia e Card --- */
.modern-wrapper {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    flex-grow: 1;
}

.modern-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.modern-card {
    background: var(--sfondo-card-home);
    border: 1px solid var(--bordo-card-home);
    border-radius: var(--radius-grande);
    padding: 30px;
    text-decoration: none;
    color: var(--testo-home);
    
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    
    box-shadow: 0 8px 32px 0 var(--shadow-color-home);
    
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.card-icon {
    font-size: 3.5rem;
    line-height: 1;
    margin-bottom: 20px;
}

.modern-card h3 {
    margin: 0 0 10px;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--testo-home);
}

.modern-card p {
    margin: 0;
    font-size: 1rem;
    font-weight: 300;
    color: var(--testo-home-opaco);
    line-height: 1.6;
}

/* --- Effetti Hover e Colori per Card --- */

/* Disabled cards without href */
.modern-card:not([href]) {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Only cards with href are interactive */
.modern-card[href]:hover,
.modern-card[href]:focus-visible {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px 0 var(--shadow-color-home);
    outline: none;
}

.card-cassa { border-top: 4px solid var(--cassa-accent); }
.card-cassa[href]:hover, .card-cassa[href]:focus-visible { 
    border-color: var(--cassa-accent);
    box-shadow: 0 0 30px -5px var(--cassa-accent), 0 20px 40px 0 var(--shadow-color-home);
}

.card-report { border-top: 4px solid var(--report-accent); }
.card-report[href]:hover, .card-report[href]:focus-visible { 
    border-color: var(--report-accent);
    box-shadow: 0 0 30px -5px var(--report-accent), 0 20px 40px 0 var(--shadow-color-home);
}

.card-admin { border-top: 4px solid var(--admin-accent); }
.card-admin[href]:hover, .card-admin[href]:focus-visible { 
    border-color: var(--admin-accent);
    box-shadow: 0 0 30px -5px var(--admin-accent), 0 20px 40px 0 var(--shadow-color-home);
}

.card-docs { border-top: 4px solid #8b5cf6; }
.card-docs[href]:hover, .card-docs[href]:focus-visible { 
    border-color: #8b5cf6;
    box-shadow: 0 0 30px -5px #8b5cf6, 0 20px 40px 0 var(--shadow-color-home);
}

/* --- Footer Moderno --- */
.modern-footer {
    width: 100%;
    text-align: center;
    padding: 30px 20px;
    margin-top: auto;
    font-size: 0.9rem;
    color: var(--testo-home-opaco);
}
.modern-footer a {
    color: var(--testo-home);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}
.modern-footer a:hover {
    color: var(--cassa-accent);
}
.modern-footer span {
    margin: 0 10px;
    opacity: 0.5;
}

/* Migliorie accessibilità e compatibilità (non invasive) */

/* Colore di fallback per browser che non supportano gradienti animati */
body {
  background-color: #020024;
}

/* Rispetta la preferenza di riduzione delle animazioni */
@media (prefers-reduced-motion: reduce) {
  body { animation: none !important; transition: none !important; }
  .modern-card { transition: none !important; transform: none !important; }
}

/* Focus visibile per navigazione da tastiera sulle card (anchor/card interattive) */
.modern-card[href]:focus-visible {
  outline: 3px solid rgba(255,255,255,0.85);
  outline-offset: 4px;
  border-radius: var(--radius-grande);
}

/* Forced-colors / high-contrast adjustments */
@media (forced-colors: active) {
  .modern-card:focus-visible { outline-color: Highlight; }
  body { background: Window; color: WindowText; }
}
  
/* Riduci scala su hover per utenti con ridotto contrasto se necessario */
@media (max-width: 420px) {
  .modern-card { padding: 20px; }
  .modern-header h1 { font-size: 2rem; }
}