/* ========================================
   MyLectio — Shared Styles v2
   Modern refresh: glassmorphism nav,
   better shadows, micro-animations
   ======================================== */

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --teal:#0d9488;--teal-mid:#14b8a6;--teal-light:#ccfbf1;--teal-dark:#0f766e;
  --slate:#1e3a4f;--slate-light:#e8f0f5;
  --ink:#0f1923;--ink-soft:#3d5166;--ink-muted:#7a93a8;
  --warm:#fafaf8;--white:#ffffff;
  --gold:#d97706;--gold-light:#fef3c7;
  --amber:#f59e0b;--amber-light:#fef3c7;
  --border:#d1dde6;
  --shadow:0 2px 16px rgba(15,25,35,0.06);
  --shadow-md:0 4px 24px rgba(15,25,35,0.09);
  --shadow-lg:0 12px 48px rgba(15,25,35,0.12);
  --shadow-xl:0 20px 60px rgba(15,25,35,0.16);
  --grad:linear-gradient(135deg,#0f2a3d 0%,#0d9488 65%,#14b8a6 100%);
}

html{scroll-behavior:smooth}
body{font-family:'DM Sans',sans-serif;background:var(--warm);color:var(--ink);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden}

/* ── NAV (glassmorphism) ── */
nav{position:fixed;top:0;left:0;right:0;z-index:500;padding:14px 40px;background:transparent;transition:all .4s cubic-bezier(.2,.8,.2,1);display:flex;justify-content:space-between;align-items:center}
.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.nav-brand-icon{position:relative;width:36px;height:36px;border-radius:22%;overflow:hidden;box-shadow:0 3px 14px rgba(0,0,0,.28);flex-shrink:0;transition:transform .3s}
.nav-brand:hover .nav-brand-icon{transform:scale(1.06)}
.nav-brand-icon .aib-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.nav-brand-icon .aib-fg{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:5%}
.nav-brand-text{display:flex;flex-direction:column;line-height:1}
.nav-brand-name{font-family:'Lora',serif;font-weight:700;font-size:1rem;color:white;transition:color .3s}
.nav-brand-tag{font-family:'Lora',serif;font-style:italic;font-size:.6rem;color:#a7f3d0;transition:color .3s;margin-top:2px}
.nav-ham{display:none;background:none;border:none;cursor:pointer;padding:6px;flex-shrink:0;flex-direction:column}
.nav-ham span{display:block;width:22px;height:2px;background:white;border-radius:2px;margin:4px 0;transition:all .3s}
.nav-links{display:flex;gap:20px;list-style:none;align-items:center}
.nav-links a{text-decoration:none;font-size:.85rem;font-weight:500;color:white;opacity:.8;transition:all .25s;position:relative}
.nav-links a::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:2px;background:white;border-radius:1px;transform:scaleX(0);transition:transform .25s;transform-origin:left}
.nav-links a:hover,.nav-links a.active{opacity:1;font-weight:600}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-cta-link{background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.35);border-radius:20px;padding:7px 18px !important;opacity:1 !important;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.nav-cta-link::after{display:none !important}
.nav-cta-link:hover{background:rgba(255,255,255,0.22) !important;border-color:rgba(255,255,255,.55) !important}

/* Accedi: overlay di scelta Studente / Docente — identico su mobile e desktop */
.login-picker-overlay{position:fixed;inset:0;background:rgba(10,20,30,.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:900;display:none;align-items:center;justify-content:center;padding:24px}
.login-picker-overlay.open{display:flex}
.login-picker{background:white;border-radius:24px;padding:32px 28px;max-width:420px;width:100%;box-shadow:0 24px 64px rgba(0,0,0,.35);position:relative}
.login-picker-close{position:absolute;top:14px;right:14px;width:34px;height:34px;border-radius:50%;border:none;background:var(--slate-light);color:var(--ink-soft);font-size:1.1rem;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s}
.login-picker-close:hover{background:var(--border)}
.login-picker-title{font-family:'Lora',serif;font-size:1.35rem;font-weight:700;color:var(--ink);margin:0 0 22px;text-align:center;padding-right:20px}
.login-picker-cards{display:flex;flex-direction:column;gap:12px}
.login-picker-card{display:block;padding:20px 22px;border-radius:16px;border:1.5px solid var(--border);text-decoration:none;transition:all .2s cubic-bezier(.2,.8,.2,1)}
.login-picker-card:hover{border-color:var(--teal);background:var(--teal-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(13,148,136,.15)}
.lpc-title{display:block;font-size:1.08rem;font-weight:700;color:var(--ink);margin-bottom:4px}
.lpc-sub{display:block;font-size:.83rem;color:var(--ink-muted);line-height:1.4}

/* scrolled (glassmorphism) */
nav.scrolled{background:rgba(255,255,255,.85);backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px) saturate(1.5);box-shadow:0 1px 24px rgba(15,25,35,.08);padding:10px 40px;border-bottom:1px solid rgba(0,0,0,.04)}
nav.scrolled .nav-brand-name{color:var(--ink)}
nav.scrolled .nav-brand-tag{color:var(--teal)}
nav.scrolled .nav-ham span{background:var(--ink)}
nav.scrolled .nav-links a{color:var(--ink-soft);opacity:.75}
nav.scrolled .nav-links a::after{background:var(--teal)}
nav.scrolled .nav-links a:hover,nav.scrolled .nav-links a.active{color:var(--teal);opacity:1}
nav.scrolled .nav-cta-link{background:var(--teal) !important;border-color:var(--teal) !important;color:white !important;backdrop-filter:none;box-shadow:0 2px 12px rgba(13,148,136,.3)}
nav.scrolled .nav-cta-link:hover{background:var(--teal-dark) !important;transform:translateY(-1px);box-shadow:0 4px 16px rgba(13,148,136,.4)}

/* ── SITE HERO (subpages) ── */
.site-hero{background:var(--grad);position:relative;overflow:hidden;display:flex;align-items:center}
.site-hero::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:80px;background:var(--warm);clip-path:ellipse(55% 100% at 50% 100%)}
.hero-inner{max-width:1100px;margin:0 auto;padding:120px 5% 80px;position:relative;z-index:1}
.hero-appname{font-family:'Lora',serif;font-size:1.1rem;font-weight:600;color:rgba(255,255,255,.7);margin-bottom:10px}
.hero-title{font-family:'Lora',serif;font-size:clamp(2rem,4.5vw,3.6rem);font-weight:700;color:white;line-height:1.15;margin-bottom:16px;letter-spacing:-.02em}
.hero-title em{font-style:italic;color:#a7f3d0}
.hero-sub{color:rgba(255,255,255,.7);font-size:1rem;line-height:1.7;font-weight:300;max-width:560px}
.hero-cta{display:inline-flex;align-items:center;gap:10px;background:white;color:var(--teal);padding:15px 32px;border-radius:14px;font-weight:700;text-decoration:none;font-size:.95rem;transition:all .3s cubic-bezier(.2,.8,.2,1);box-shadow:0 4px 20px rgba(0,0,0,.2)}
.hero-cta:hover{transform:translateY(-3px);box-shadow:0 12px 40px rgba(0,0,0,.25)}

/* ── COMMON SECTION ── */
section{padding:80px 5%}
.section-inner{max-width:1100px;margin:0 auto}
.eyebrow{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--teal);margin-bottom:14px;display:inline-flex;align-items:center;gap:6px}
.eyebrow::before{content:'';width:24px;height:2px;background:var(--teal);border-radius:1px}
h2{font-family:'Lora',serif;font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;line-height:1.25;color:var(--ink);margin-bottom:16px;letter-spacing:-.01em}
h2 em{font-style:italic;color:var(--teal)}
.lead{font-size:1rem;color:var(--ink-soft);max-width:640px;line-height:1.7;margin-bottom:40px;font-weight:300}

/* ── SVG ICON HELPERS ── */
.icon-wrap{display:flex;align-items:center;justify-content:center;flex-shrink:0}
.icon-wrap svg{display:block}
.icon-circle{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .2s}
.icon-circle svg{width:24px;height:24px}
.icon-circle.teal{background:var(--teal-light);color:var(--teal)}
.icon-circle.slate{background:rgba(255,255,255,.12);color:rgba(255,255,255,.9)}

/* ── FOOTER (modernized) ── */
footer{background:var(--ink);padding:48px 5% 36px;display:flex;flex-direction:column;gap:20px}
.foot-top{display:flex;justify-content:space-between;align-items:flex-start;flex-wrap:wrap;gap:20px}
.foot-logo{display:flex;align-items:center;gap:10px;font-family:'Lora',serif;font-weight:700;color:white;font-size:1.15rem}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a{font-size:.82rem;color:rgba(255,255,255,.4);text-decoration:none;transition:all .25s;position:relative}
.foot-links a:hover{color:var(--teal-mid);transform:translateY(-1px)}
.foot-sub{font-size:.75rem;color:rgba(255,255,255,.2);text-align:center;border-top:1px solid rgba(255,255,255,.06);padding-top:20px;margin-top:4px}

/* ── APP ICON BADGE ── */
.app-icon-badge{position:relative;border-radius:22%;overflow:hidden;flex-shrink:0;box-shadow:0 8px 32px rgba(0,0,0,.35)}
.app-icon-badge .aib-bg{display:block;width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.app-icon-badge .aib-fg{display:block;position:absolute;inset:0;width:100%;height:100%;object-fit:contain;padding:5%}

/* ── LEGAL PAGES (privacy, termini) ── */
.content{max-width:840px;margin:0 auto;padding:64px 5% 80px}
.highlight-box{background:linear-gradient(135deg,rgba(13,148,136,.08),rgba(20,184,166,.04));border:1px solid rgba(13,148,136,.18);border-radius:18px;padding:22px 26px;margin-bottom:32px;font-size:.9rem;color:var(--ink-soft);line-height:1.7}
.highlight-box strong{color:var(--teal)}
.priv-updated{font-size:.82rem;color:var(--ink-muted);margin-bottom:24px}
.priv-section{background:white;border-radius:18px;padding:36px 40px;border:1px solid var(--border);margin-bottom:14px;box-shadow:var(--shadow);transition:box-shadow .3s}
.priv-section:hover{box-shadow:var(--shadow-md)}
.priv-section h2{font-family:'Lora',serif;font-size:1.2rem;color:var(--ink);margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid var(--teal-light);display:flex;align-items:center;gap:10px}
.priv-section h2 .sec-num{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;background:var(--teal);color:white;border-radius:50%;font-size:.75rem;font-weight:700;flex-shrink:0;font-family:'DM Sans',sans-serif}
.priv-section p{color:var(--ink-soft);font-size:.9rem;line-height:1.75;font-weight:300;margin-bottom:10px}
.priv-section p:last-child{margin-bottom:0}
.priv-section ul{margin:8px 0 10px 20px;color:var(--ink-soft);font-size:.9rem;line-height:1.75}
.priv-section ul li{margin-bottom:4px}
.priv-section strong{color:var(--ink);font-weight:600}
.priv-section a{color:var(--teal);text-decoration:none;font-weight:500;transition:opacity .2s}
.priv-section a:hover{opacity:.75}
.warning-box{background:#fef3c7;border:1px solid #fbbf24;border-radius:12px;padding:14px 18px;margin:12px 0;font-size:.85rem;color:#92400e;line-height:1.6}
.table-scroll{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;margin:12px 0}
.table-scroll .data-table{margin:0}
.data-table{width:100%;border-collapse:collapse;margin:12px 0;font-size:.85rem;border-radius:12px;overflow:hidden}
.data-table th{background:var(--teal-light);color:var(--teal-dark);font-weight:700;padding:10px 14px;text-align:left}
.data-table td{padding:10px 14px;border-bottom:1px solid var(--border);color:var(--ink-soft)}
.data-table tr:last-child td{border-bottom:none}

/* ── FADE IN (migliorato) ── */
.fade-in{opacity:0;transform:translateY(28px);transition:opacity .7s cubic-bezier(.2,.8,.2,1),transform .7s cubic-bezier(.2,.8,.2,1)}
.fade-in.visible{opacity:1;transform:none}

/* stagger children */
.fade-in-stagger > *{opacity:0;transform:translateY(20px);transition:opacity .5s ease,transform .5s ease}
.fade-in-stagger.visible > *{opacity:1;transform:none}
.fade-in-stagger.visible > *:nth-child(1){transition-delay:.05s}
.fade-in-stagger.visible > *:nth-child(2){transition-delay:.12s}
.fade-in-stagger.visible > *:nth-child(3){transition-delay:.19s}
.fade-in-stagger.visible > *:nth-child(4){transition-delay:.26s}

/* ── GLOW ANIMATION ── */
@keyframes glow-pulse{0%,100%{opacity:.3}50%{opacity:.6}}
.hero-glow{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;animation:glow-pulse 4s ease-in-out infinite}

/* ── RESPONSIVE ── */
@media(max-width:900px){
  .info-grid,.free-grid,.feat-grid{grid-template-columns:1fr 1fr}
  .packs-grid{grid-template-columns:1fr}
  .sin-grid{grid-template-columns:1fr}
  .compare-grid{grid-template-columns:1fr}
  .sv-grid{grid-template-columns:1fr}
  .sapere-inner{grid-template-columns:1fr}
}
@media(max-width:768px){
  nav{padding:12px 20px}
  nav.scrolled{padding:10px 20px}
  .nav-ham{display:flex}
  .nav-links{display:none;position:absolute;top:calc(100% + 8px);right:16px;width:min(72vw,260px);max-height:calc(100vh - 90px);overflow-y:auto;background:rgba(15,25,35,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-radius:18px;box-shadow:0 16px 44px rgba(0,0,0,.35);flex-direction:column;align-items:stretch;gap:2px;z-index:498;padding:10px}
  .nav-links.open{display:flex}
  .nav-links a{font-size:.92rem !important;color:white !important;opacity:1 !important;padding:11px 14px;border-radius:10px;display:block}
  .nav-links a:hover,.nav-links a.active{background:rgba(255,255,255,.1)}
  .nav-links a::after{display:none}
  .nav-links li{list-style:none}
  .nav-cta-link{margin-top:4px !important;text-align:center}
  .hero-inner{padding:100px 5% 70px}
  footer{text-align:center}
  .foot-top{justify-content:center}
  .foot-links{justify-content:center}
  .info-grid,.free-grid,.feat-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  nav{padding:10px 16px}
  .nav-brand-name{font-size:.88rem}
  .nav-brand-tag{display:none}
}