/* ==========================================================================
   ZB Nautica - Foglio di Stile Ottimizzato e Validato
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;600;800&display=swap');

/* --- 1. VARIABILI GLOBALI (Tema Scuro / Blu Nautico di Default) --- */
:root, [data-theme="dark"] {
    --bg-deep: #060b13;
    --bg-card: #0f172a;
    --accent: #0ea5e9; /* Azzurro Nautico */
    --accent-glow: rgba(14, 165, 233, 0.3);
    --text-primary: #f8fafc;
    --text-dim: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --header-bg: rgba(6, 11, 19, 0.95);
}

[data-theme="light"] {
    --bg-deep: #f1f5f9;
    --bg-card: #ffffff;
    --text-primary: #0f172a;
    --text-dim: #475569;
    --border: rgba(0, 0, 0, 0.1);
    --header-bg: rgba(255, 255, 255, 0.95);
    --accent: #0284c7; 
}

/* --- 2. RESET E TYPOGRAPHY --- */
* { margin: 0; padding: 0; box-sizing: border-box; } /* Corretto il padding: 10 invalido */

body { 
    font-family: 'Plus Jakarta Sans', sans-serif; 
    background-color: var(--bg-deep); 
    color: var(--text-primary); 
    line-height: 1.6; 
    transition: background 0.3s ease, color 0.3s ease; 
}

h1, h2, h3, h4, p, li { color: var(--text-primary); }

img.img-responsive { max-width: 100%; height: auto; display: block; }

/* --- 3. HEADER E NAVIGAZIONE --- */
header { 
    background: var(--header-bg); 
    backdrop-filter: blur(12px); 
    padding: 5px 8%; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    position: sticky; 
    top: 0; 
    z-index: 1000; 
    border-bottom: 1px solid var(--border); 
}

.logo { 
    font-size: 24px; 
    font-weight: 800; 
    background: linear-gradient(90deg, var(--text-primary), var(--accent)); 
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent; 
    text-decoration: none; 
}
/* Corretta sintassi per l'immagine nel logo */
.logo img { width: 100px; height: auto; } 

nav ul { display: flex; gap: 25px; list-style: none; align-items: center; }
nav a { color: var(--text-primary); text-decoration: none; font-weight: 600; font-size: 14px; transition: color 0.3s; }
nav a:hover, nav a.active { color: var(--accent); }

/* --- 4. DROPDOWN CONTATTI / MENU A TENDINA --- */
.dropdown { position: relative; }
.dropdown-menu {
    display: none !important;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-card);
    padding: 8px 0;
    list-style: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    min-width: 220px;
    z-index: 9999;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
}
.dropdown-menu li a { display: block; padding: 10px 16px; white-space: nowrap; color: var(--text-primary) !important; transition: 0.2s; }
.dropdown-menu li a:hover, .dropdown-menu li a:focus { background-color: var(--accent); color: #fff !important; border-radius: 8px; outline: none; }

@media (min-width: 769px) {
    .dropdown:hover .dropdown-menu { display: block !important; }
}

/* --- 5. COMPONENTI BASE --- */
.hero { 
    padding: 100px 8% 80px; 
    text-align: left; 
    background: radial-gradient(circle at top right, #1e293b, var(--bg-deep)); 
}
.hero h1 { font-size: clamp(2.5rem, 4vw, 4rem); line-height: 1.1; margin-bottom: 25px; font-weight: 800; }
.hero h1 span { color: var(--accent); }

.content-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; padding: 60px 8%; max-width: 1400px; margin: auto; }

.card { 
    background: var(--bg-card); 
    padding: 30px; 
    border-radius: 20px; 
    border: 1px solid var(--border); 
    transition: transform 0.4s, box-shadow 0.4s; 
    position: relative; 
    overflow: hidden; 
}
.card:hover { transform: translateY(-8px); border-color: var(--accent); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }
.card h3 { margin-bottom: 15px; }

/* Bottoni */
.btn-primary { 
    background: var(--accent); 
    color: #fff !important; 
    padding: 15px 30px; 
    border-radius: 12px; 
    font-weight: bold; 
    text-decoration: none; 
    display: inline-block; 
    box-shadow: 0 4px 15px var(--accent-glow); 
    transition: 0.3s; 
    border: none;
    cursor: pointer;
    text-align: center;
}
.btn-primary:hover { transform: scale(1.05); box-shadow: 0 8px 25px var(--accent-glow); }

/* --- 6. MODULI CONTATTO --- */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 15px; }
input[type="text"], input[type="email"], select, textarea, input[type="file"] {
    width: 100%;
    padding: 15px;
    background: var(--bg-deep);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    transition: border-color 0.3s, background 0.3s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); outline: none; background: rgba(255,255,255,0.02); }
input:invalid { border-color: #ef4444; }

.privacy-box { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; color: var(--text-dim); margin: 20px 0; }
.privacy-box input { width: auto; margin-top: 4px; }

.form-loader { display: none; padding: 15px; border-radius: 8px; margin-top: 20px; text-align: center; font-weight: bold; }
.success { background: rgba(34, 197, 94, 0.2); color: #22c55e; border: 1px solid #22c55e; }

/* --- 7. FOOTER ISTITUZIONALE --- */
footer { 
    background: rgba(15, 23, 42, 0.98); 
    padding: 60px 8% 20px; 
    border-top: 1px solid var(--border); 
}
.footer-container, .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 40px; margin-bottom: 40px; max-width: 1200px; margin: 0 auto 50px; }
.footer-h4 { color: var(--accent); margin-bottom: 25px; font-size: 15px; font-weight: 800; text-transform: uppercase; letter-spacing: 1.5px; border-left: 3px solid var(--accent); padding-left: 10px; }
footer p, footer a, .footer-section p { font-size: 13px; color: var(--text-dim); line-height: 1.7; text-decoration: none; }
footer a:hover, .footer-section a:hover { color: var(--accent); }
.footer-bottom { text-align: center; padding-top: 30px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-dim); }

[data-theme="light"] footer { background: #e2e8f0; color: #0f172a; }

/* --- 8. WIDGET E ACCESSIBILITÀ --- */

/* Posizionamento Float (Allineati in basso a destra) */
.acc-toggle {
    position: fixed !important; right: 20px !important; bottom: 20px !important;
    width: 60px !important; height: 60px !important; border-radius: 50% !important;
    background: var(--accent); color: white; border: none; cursor: pointer; font-size: 24px;
    z-index: 3000 !important; box-shadow: 0 4px 15px rgba(0,0,0,0.4) !important; transition: transform 0.3s ease !important;
}
.acc-toggle:hover { transform: scale(1.1); }

#back-to-top {
    position: fixed !important; right: 95px !important; bottom: 25px !important;
    width: 50px !important; height: 50px !important; border-radius: 12px !important;
    background: var(--bg-card) !important; color: var(--accent) !important; border: 2px solid var(--accent) !important;
    cursor: pointer; display: none; z-index: 2500 !important; align-items: center; justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.4) !important; transition: transform 0.3s;
}
#back-to-top:hover { background: var(--accent) !important; color: white !important; transform: translateY(-5px); }

/* Pannello Menu Accessibilità */
.acc-panel {
    display: none; flex-direction: column; gap: 8px;
    background: var(--bg-card); border: 1px solid var(--accent);
    padding: 20px; border-radius: 15px; width: 250px;
    position: fixed !important; bottom: 90px !important; right: 20px !important;
    z-index: 5000 !important; box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.acc-header { font-weight: 800; color: var(--accent); margin-bottom: 10px; font-size: 14px; text-transform: uppercase; border-bottom: 1px solid var(--border); padding-bottom: 5px;}
.acc-btn { 
    background: var(--bg-deep); color: var(--text-primary); border: 1px solid var(--border);
    padding: 12px; border-radius: 8px; cursor: pointer; text-align: left; font-size: 13px; font-weight: 600; transition: 0.2s;
}
.acc-btn i { margin-right: 10px; color: var(--accent); width: 20px; }
.acc-btn:hover { background: var(--border); border-color: var(--accent); }
.acc-btn.reset { margin-top: 5px; background: transparent; border-color: #ef4444; color: #ef4444; }

/* Guide e Progress */
#scroll-progress { position: fixed; top: 0; left: 0; width: 0%; height: 4px; background: var(--accent); z-index: 2000; transition: width 0.1s; }
#reading-guide { position: fixed; top: 50%; left: 0; width: 100%; height: 4px; background: var(--accent); z-index: 9999; pointer-events: none; display: none; box-shadow: 0 0 15px var(--accent); }

/* --- 9. CLASSI DI STATO (Generate dal JS Accessibilità) --- */

/* Filtri Generali */
.extra-spacing { letter-spacing: 2px !important; word-spacing: 4px !important; line-height: 2.2 !important; }
.readable-font { font-family: 'Open Sans', Arial, sans-serif !important; }

/* Fix Modalità Grigia - Colpisce solo il contenuto, non la UI */
.grayscale header, .grayscale section, .grayscale footer, .grayscale main, .grayscale .content-grid, .grayscale .hero { filter: grayscale(100%) !important; }
body.grayscale { filter: none !important; }
.acc-wrapper, .acc-panel, .acc-toggle { filter: none !important; backdrop-filter: none !important; }

/* High Contrast & Fix Link */
.high-contrast { background-color: #000 !important; color: #fff !important; }
.high-contrast * { border-color: #fff !important; }
.high-contrast .card, .high-contrast header { background: #000; border: 2px solid #fff; }

/* Link Evidenziati */
.underline-links a:not(.btn-primary):not(.acc-btn) { 
    text-decoration: underline !important; text-decoration-thickness: 2px !important; font-weight: 800 !important; 
    color: var(--accent) !important; -webkit-text-fill-color: var(--accent) !important; opacity: 1 !important; visibility: visible !important;
}
.high-contrast.underline-links a:not(.btn-primary):not(.acc-btn) { 
    color: #ffff00 !important; -webkit-text-fill-color: #ffff00 !important; text-decoration-color: #ffff00 !important;
}
/* Salva lo stile dei bottoni per non farli sparire */
.underline-links .btn-primary, .underline-links .acc-btn {
    color: #ffffff !important; -webkit-text-fill-color: #ffffff !important; text-decoration: none !important; border-color: #ffffff !important;
}

/* --- 10. DASHBOARD STATISTICHE --- */
.dash-statistiche {
    position: fixed; bottom: 25px; right: 25px; z-index: 999999;
    background: rgba(15, 23, 42, 0.95); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    color: #e2e8f0; padding: 20px; border-radius: 14px; 
    font-size: 13px; box-shadow: 0 10px 30px rgba(0,0,0,0.5); border: 1px solid var(--border); width: 280px;
}
.dash-header { display: flex; justify-content: space-between; align-items: center; font-size: 15px; border-bottom: 1px solid var(--border); padding-bottom: 12px; margin-bottom: 15px; }
.dash-close { font-size: 22px; color: #a0aec0; cursor: pointer; line-height: 1; transition: 0.2s; }
.dash-close:hover { color: #f56565; }
.dash-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 15px; text-align: center; }
.dash-box { background: rgba(0,0,0,0.3); padding: 10px 5px; border-radius: 8px; font-size: 11px; color: #a0aec0; }
.dash-box strong { display: block; font-size: 16px; color: var(--accent); margin-top: 3px; }
.dash-section { background: rgba(0,0,0,0.2); padding: 10px 12px; border-radius: 8px; margin-bottom: 15px; }
.dash-section strong { color: var(--accent); }
.dash-section-title { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; color: var(--text-dim); margin-bottom: 8px; }
.dash-list { margin: 0 0 15px 0; padding: 0; list-style: none; }
.dash-list li { display: flex; justify-content: space-between; padding: 5px 0; border-bottom: 1px dashed var(--border); }
.dash-list li:last-child { border-bottom: none; }
.dash-list li span { font-weight: bold; color: var(--accent); }

/* --- 11. RESPONSIVE MOBILE FIX --- */
@media (max-width: 768px) {
    .hero { padding: 60px 5%; text-align: center; }
    .hero h1 { font-size: 2.5rem; }
    .cta-group { display: flex; flex-direction: column; gap: 15px; align-items: center; }
    .btn-primary { width: 100%; text-align: center; }
    .form-grid { grid-template-columns: 1fr; }
    
    /* Menu a tendina Mobile */
    nav ul {
        display: none !important; flex-direction: column !important;
        position: absolute; top: 70px; left: 0; width: 100%;
        background: var(--bg-deep); padding: 20px; border-bottom: 2px solid var(--accent);
    }
    nav ul.active { display: flex !important; }
    
    .dropdown-menu {
        position: static !important; border: none !important;
        min-width: auto; padding-left: 16px; box-shadow: none; background: transparent;
    }
    .dropdown.open .dropdown-menu { display: block !important; }
    
    /* Pulsanti Float su Mobile */
    #back-to-top { right: 90px !important; }
}

/* ==========================================================================
   FIX CONTRASTO E VISIBILITÀ BOTTONI IN MODALITÀ CHIARA (TEMA BIANCO)
   ========================================================================== */

[data-theme="light"] .acc-panel {
    background: #ffffff !important;
    border-color: var(--accent) !important;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.15) !important;
}

[data-theme="light"] .acc-header {
    color: #0f172a !important;
    border-bottom-color: #e2e8f0 !important;
}

/* Forza i bottoni dell'accessibilità ad avere testo scuro su fondo grigio chiaro */
[data-theme="light"] .acc-btn {
    background: #f1f5f9 !important;
    color: #0f172a !important;
    border: 1px solid #cbd5e1 !important;
}

/* Mantiene le icone colorate all'interno dei bottoni */
[data-theme="light"] .acc-btn i {
    color: var(--accent) !important;
}

/* Effetto Hover nei bottoni con il tema chiaro: testo bianco su fondo azzurro */
[data-theme="light"] .acc-btn:hover {
    background: var(--accent) !important;
    color: #ffffff !important;
    border-color: var(--accent) !important;
}

[data-theme="light"] .acc-btn:hover i {
    color: #ffffff !important;
}

/* Forza il bottone di reset a rimanere rosso e leggibile */
[data-theme="light"] .acc-btn.reset {
    background: rgba(239, 68, 68, 0.1) !important;
    color: #ef4444 !important;
    border-color: #ef4444 !important;
}
[data-theme="light"] .acc-btn.reset:hover {
    background: #ef4444 !important;
    color: #ffffff !important;
}

/* Fix per i pulsanti principali del sito (es. "Calcola Preventivo") */
[data-theme="light"] .btn-primary {
    background: var(--accent) !important;
    color: #ffffff !important; /* Testo bianco ben visibile sul pulsante azzurro */
}

/* Fix per la finestra popup di WhatsApp */
[data-theme="light"] .chat-popup {
    background: #ffffff !important;
    border-color: var(--accent) !important;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.15) !important;
}
[data-theme="light"] .chat-popup p {
    color: #475569 !important;
}
[data-theme="light"] .chat-popup-header {
    color: #0f172a !important;
}
[data-theme="light"] .close-chat {
    color: #94a3b8 !important;
}

/* ==========================================================================
   FIX COMPRENSIVO ALTO CONTRASTO (HIGH CONTRAST WCAG 2.1)
   ========================================================================== */

body.high-contrast {
    background-color: #000000 !important;
    color: #ffffff !important;
}

/* 1. HEADER, NAVIGAZIONE E MENU A TENDINA */
body.high-contrast header,
body.high-contrast nav,
body.high-contrast .dropdown-menu,
body.high-contrast nav ul.menu {
    background-color: #000000 !important;
    background: #000000 !important;
    border: 2px solid #ffffff !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

/* Forza tutti i link del menu a diventare Giallo Accessibile */
body.high-contrast a,
body.high-contrast nav a,
body.high-contrast .dropdown-menu li a,
body.high-contrast nav ul li a {
    color: #ffff00 !important; /* Giallo puro ad alto contrasto */
    text-decoration: underline !important; /* Sottolineatura obbligatoria */
    -webkit-text-fill-color: #ffff00 !important;
    background: transparent !important;
}

/* Stato Hover dei link nel menu in alto contrasto */
body.high-contrast nav a:hover, 
body.high-contrast .dropdown-menu li a:hover {
    background-color: #ffff00 !important;
    color: #000000 !important;
    -webkit-text-fill-color: #000000 !important;
    text-decoration: none !important;
}

/* 2. PANNELLO SIDEBAR ACCESSIBILITÀ (.acc-panel) */
body.high-contrast .acc-panel {
    background-color: #000000 !important;
    background: #000000 !important;
    border: 3px solid #ffffff !important;
    box-shadow: none !important;
}

body.high-contrast .acc-header {
    color: #ffffff !important;
    border-bottom: 2px solid #ffffff !important;
}

body.high-contrast .acc-btn {
    background-color: #000000 !important;
    color: #ffffff !important;
    border: 2px solid #ffffff !important;
    -webkit-text-fill-color: #ffffff !important;
}

body.high-contrast .acc-btn i {
    color: #ffff00 !important; /* Icone dei pulsanti in giallo */
}

/* Hover dei bottoni dentro il pannello */
body.high-contrast .acc-btn:hover {
    background-color: #ffff00 !important;
    color: #000000 !important;
    -webkit-text-fill-color: #000000 !important;
}

body.high-contrast .acc-btn:hover i {
    color: #000000 !important;
}

/* 3. PULSANTI FLOTTANTI (Lancio Accessibilità e Back-to-top) */
body.high-contrast .acc-toggle {
    background-color: #000000 !important;
    color: #ffff00 !important;
    border: 2px solid #ffff00 !important;
}

body.high-contrast #back-to-top {
    background-color: #000000 !important;
    color: #ffffff !important;
    border: 2px solid #ffffff !important;
}

/* 4. POPUP CHAT DI WHATSAPP */
body.high-contrast .chat-popup {
    background-color: #000000 !important;
    border: 3px solid #ffffff !important;
}

body.high-contrast .chat-popup p {
    color: #ffffff !important;
}

body.high-contrast .chat-popup-header {
    color: #ffff00 !important;
    border-bottom: 1px solid #ffffff;
    padding-bottom: 5px;
}

body.high-contrast .btn-whatsapp-chat {
    background-color: #ffff00 !important;
    color: #000000 !important;
    -webkit-text-fill-color: #000000 !important;
    border: 2px solid #ffffff !important;
}