/* ============================================================
   THEME.CSS — Design System
   Portfolio Gianluca Nuscis
   ============================================================
   Principi:
   - Contrasto alto: testo chiarissimo su sfondo scuro
   - Pulizia: meno effetti, più respiro
   - Tipografia: Manrope per titoli, Inter per corpo
   ============================================================ */

/* ── Custom Properties ── */
:root {
  /* Sfondi */
  --bg: #060b10;
  --bg-surface: #0b1119;
  --bg-card: #111820;
  --bg-card-hover: #161e28;
  --bg-elevated: #192330;

  /* Testo — ALTO CONTRASTO */
  --text: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  /* Accent */
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-glow: rgba(59,130,246,0.3);
  --accent-bg: rgba(59,130,246,0.1);

  /* Altri */
  --tertiary: #06b6d4;
  --error: #ef4444;
  --success: #22c55e;
  --border: rgba(255,255,255,0.08);
  --border-light: rgba(255,255,255,0.05);

  /* Font */
  --font-head: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Layout */
  --max-w: 1200px;
  --px: 1.5rem;

  /* Transitions */
  --ease: cubic-bezier(0.22,1,0.36,1);
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
::selection{background:rgba(59,130,246,0.35);color:#fff}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}

/* ── Tipografia ── */
h1,h2,h3,h4{font-family:var(--font-head);color:#fff;line-height:1.2}
h1{font-size:clamp(2rem,4.5vw,3.25rem);font-weight:800;letter-spacing:-0.04em}
h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;letter-spacing:-0.03em}
h3{font-size:1.125rem;font-weight:700}
p{color:var(--text-secondary)}

/* ── Accessibility ── */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
:focus:not(:focus-visible){outline:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;top:-100%;left:1rem;background:var(--accent);color:#fff;padding:.75rem 1.25rem;border-radius:.5rem;font-weight:700;z-index:100;transition:top .2s}
.skip-link:focus{top:.75rem}

/* ── Scrollbar ── */
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#2a3340;border-radius:3px}

/* ═══════════════════════════════════
   HEADER
   ═══════════════════════════════════ */
.site-header{position:sticky;top:0;z-index:50;width:100%;background:rgba(6,11,16,0.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;justify-content:space-between;align-items:center;padding:.875rem var(--px);max-width:var(--max-w);margin:0 auto}
.header-brand{display:flex;align-items:center;gap:.5rem;font-family:var(--font-head);font-weight:800;font-size:1.05rem;letter-spacing:-0.03em;color:#fff}
.header-brand .material-symbols-outlined{font-size:1.4rem;color:var(--accent-light)}
.nav-desktop{display:none}
@media(min-width:768px){.nav-desktop{display:flex;align-items:center;gap:.25rem}}
.nav-link{padding:.5rem .875rem;border-radius:.4rem;font-size:.85rem;font-weight:500;color:var(--text-secondary);transition:all .15s;background:none;border:none;cursor:pointer;font-family:var(--font-body)}
.nav-link:hover{color:#fff;background:rgba(255,255,255,0.05)}
.nav-link[aria-current="page"]{color:var(--accent-light);background:var(--accent-bg);font-weight:600}

.hamburger{display:inline-flex;align-items:center;justify-content:center;width:2.5rem;height:2.5rem;border-radius:.4rem;border:none;background:transparent;color:var(--text-secondary);cursor:pointer;transition:all .15s}
.hamburger:hover{color:#fff;background:rgba(255,255,255,0.05)}
@media(min-width:768px){.hamburger{display:none}}

.mobile-menu{display:none;flex-direction:column;gap:.125rem;padding:0 var(--px) 1rem}
.mobile-menu.open{display:flex}
@media(min-width:768px){.mobile-menu.open{display:none!important}}

/* Bottom nav mobile */
.bottom-nav{position:fixed;bottom:0;left:0;width:100%;display:flex;justify-content:space-around;padding:.4rem .75rem 1rem;background:rgba(6,11,16,0.94);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--border);border-radius:1.25rem 1.25rem 0 0;z-index:50}
@media(min-width:768px){.bottom-nav{display:none}}
.bottom-nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;padding:.25rem .5rem;color:var(--text-muted);font-size:.6rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;transition:all .2s;background:none;border:none;cursor:pointer;font-family:var(--font-body)}
.bottom-nav-item .material-symbols-outlined{font-size:1.3rem}
.bottom-nav-item:active{transform:scale(.9)}
.bottom-nav-item[aria-current="page"]{color:var(--accent-light)}
.bottom-nav-item[aria-current="page"] .material-symbols-outlined{font-variation-settings:'FILL' 1}

/* ═══════════════════════════════════
   LAYOUT
   ═══════════════════════════════════ */
.section{padding:5rem var(--px)}
.section-alt{background:var(--bg-surface)}
.section-sm{padding:3rem var(--px)}
.container{max-width:var(--max-w);margin:0 auto}
.container-sm{max-width:720px;margin:0 auto}

/* ═══════════════════════════════════
   HERO
   ═══════════════════════════════════ */
.hero{position:relative;overflow:hidden;padding:4rem var(--px) 6rem}
.hero-bg{position:absolute;inset:0;pointer-events:none;z-index:0}
.hero-bg::before{content:'';position:absolute;top:-30%;left:5%;width:55%;height:90%;background:radial-gradient(ellipse at 30% 30%,rgba(59,130,246,0.12),transparent 55%)}
.hero-bg::after{content:'';position:absolute;top:-20%;right:0;width:45%;height:80%;background:radial-gradient(ellipse at 60% 40%,rgba(6,182,212,0.06),transparent 55%)}
.hero-content{position:relative;z-index:1;max-width:var(--max-w);margin:0 auto}
.parallax-bg{will-change:transform}

/* ═══════════════════════════════════
   BADGES & TAGS
   ═══════════════════════════════════ */
.badge{display:inline-flex;align-items:center;gap:.375rem;padding:.3rem .875rem;border-radius:9999px;font-size:.75rem;font-weight:600;background:var(--accent-bg);color:var(--accent-light);border:1px solid rgba(59,130,246,0.2)}
.badge-dot{width:.4rem;height:.4rem;border-radius:50%;background:var(--accent-light)}
.badge-dot-pulse{animation:pulse 2s infinite}@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}

.tag{display:inline-block;padding:.2rem .55rem;border-radius:9999px;font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;background:var(--bg-elevated);color:var(--text-secondary);border:1px solid var(--border)}
.tag-active{background:var(--accent);color:#fff;border-color:var(--accent)}
.tag-filter{cursor:pointer;border:none;font-family:var(--font-body);transition:all .15s}
.tag-filter:hover{background:var(--accent-bg);color:var(--accent-light)}.tag-filter.tag-active:hover{background:var(--accent-light);color:#fff}
.tag-accent{background:var(--accent-bg);color:var(--accent-light);border-color:rgba(59,130,246,0.15)}

/* ═══════════════════════════════════
   BUTTONS
   ═══════════════════════════════════ */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.5rem;border-radius:9999px;font-weight:600;font-size:.85rem;border:none;cursor:pointer;transition:all .15s;font-family:var(--font-body);white-space:nowrap}
.btn-primary{background:#2563eb;color:#fff}.btn-primary:hover{background:#3b82f6;transform:translateY(-1px);box-shadow:0 4px 20px rgba(37,99,235,0.35)}
.btn-primary:active{transform:scale(.97)}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}.btn-ghost:hover{background:rgba(255,255,255,0.04);border-color:rgba(255,255,255,0.18);color:#fff}
.btn-ghost:active{transform:scale(.97)}
.btn-sm{padding:.45rem 1.1rem;font-size:.8rem}
.btn>*{position:relative;z-index:1}

/* ═══════════════════════════════════
   CARDS
   ═══════════════════════════════════ */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:.875rem;transition:all .25s var(--ease)}
.card:hover{border-color:rgba(255,255,255,0.15);background:var(--bg-card-hover)}
.card-pad{padding:1.5rem}

/* Feature / competency cards */
.fcard{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:1.75rem;transition:all .25s var(--ease)}
.fcard:hover{border-color:rgba(59,130,246,0.25);background:var(--bg-card-hover);transform:translateY(-2px);box-shadow:0 8px 30px rgba(0,0,0,0.25)}
.fcard-icon{display:inline-flex;align-items:center;justify-content:center;width:2.75rem;height:2.75rem;border-radius:.75rem;background:var(--accent-bg);color:var(--accent-light);font-size:1.4rem;margin-bottom:1rem}
.fcard h3{font-size:1.1rem;margin-bottom:.5rem;color:#fff}
.fcard p{font-size:.875rem;color:var(--text-secondary);line-height:1.6}

/* Stat cards */
.stat-card{text-align:center;padding:1rem 1.25rem;border-radius:.75rem;background:rgba(255,255,255,0.02);border:1px solid var(--border-light)}
.stat-val{font-family:var(--font-head);font-size:1.6rem;font-weight:800;color:#fff;line-height:1.1}
.stat-lbl{font-size:.7rem;color:var(--text-muted);margin-top:.2rem;text-transform:uppercase;letter-spacing:.05em}

/* Tech cards */
.tech-card{display:flex;align-items:center;gap:.75rem;padding:.85rem 1rem;border-radius:.75rem;background:var(--bg-card);border:1px solid var(--border-light);transition:all .2s}
.tech-card:hover{border-color:rgba(59,130,246,0.2);background:var(--bg-card-hover)}
.tech-card-icon{font-size:1.5rem;color:var(--accent-light);flex-shrink:0}
.tech-card-body{flex:1;min-width:0}
.tech-card-name{font-weight:600;font-size:.85rem;color:var(--text)}
.tech-card-bar{height:3px;border-radius:2px;background:var(--bg-elevated);overflow:hidden;margin-top:.4rem}
.tech-card-bar-fill{height:100%;border-radius:2px;background:var(--accent-light);width:0;transition:width 1.2s var(--ease)}
.tech-card-bar-fill.animated{width:var(--bar-width)}

/* ═══════════════════════════════════
   PROJECT CARDS
   ═══════════════════════════════════ */
.project-card{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:1.5rem;cursor:pointer;transition:all .25s var(--ease);position:relative;overflow:hidden}
.project-card:hover{background:var(--bg-card-hover);border-color:rgba(59,130,246,0.3);transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,0.3)}
.project-card-icon{font-size:2rem;color:var(--accent-light);margin-bottom:.875rem;display:inline-block;padding:.65rem;background:var(--accent-bg);border-radius:.75rem}
.project-card-title{font-family:var(--font-head);font-weight:700;font-size:1.05rem;color:#fff;line-height:1.3;margin-bottom:.25rem}
.project-card-subtitle{font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;font-weight:600;color:var(--accent-light);margin-bottom:.75rem}
.project-card-desc{font-size:.8rem;color:var(--text-secondary);line-height:1.55;margin-bottom:.875rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.project-card-stack{display:flex;flex-wrap:wrap;gap:.3rem}
.doc-badge{display:inline-flex;align-items:center;gap:.2rem;padding:.15rem .55rem;border-radius:9999px;background:rgba(6,182,212,0.15);color:var(--tertiary);font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;border:1px solid rgba(6,182,212,0.2)}
.doc-badge .material-symbols-outlined{font-size:.7rem}

/* ═══════════════════════════════════
   BOOK CARDS
   ═══════════════════════════════════ */
.book-card{display:grid;gap:2rem;padding:2rem;border-radius:1.25rem;background:var(--bg-card);border:1px solid var(--border);transition:all .25s var(--ease)}
.book-card:hover{border-color:rgba(59,130,246,0.2);background:var(--bg-card-hover);box-shadow:0 8px 30px rgba(0,0,0,0.2)}
@media(min-width:768px){.book-card{grid-template-columns:1fr 1fr;align-items:center}}
.book-cover{display:flex;align-items:center;justify-content:center;aspect-ratio:3/4;max-width:220px;margin:0 auto;border-radius:.75rem;background:linear-gradient(135deg,#1a2940,#0f2338,#164e63);border:1px solid var(--border);transition:transform .3s var(--ease)}
.book-card:hover .book-cover{transform:scale(1.02)}
.book-cover-icon{font-size:4rem;color:var(--accent-light)}
.book-points{list-style:none;padding:0;display:flex;flex-direction:column;gap:.6rem}
.book-points li{display:flex;align-items:flex-start;gap:.5rem;font-size:.85rem;color:var(--text-secondary);line-height:1.5}
.book-points li .material-symbols-outlined{color:var(--accent-light);font-size:1.15rem;flex-shrink:0;margin-top:.15rem}
.book-points li code{background:var(--bg-elevated);padding:.1rem .35rem;border-radius:.25rem;font-size:.8rem;color:var(--accent-light)}

/* ═══════════════════════════════════
   MODAL
   ═══════════════════════════════════ */
.modal-overlay{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,0.75);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;padding:1rem;opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}
.modal-overlay.active{opacity:1;visibility:visible}
.modal-content{position:relative;background:var(--bg-card);border:1px solid var(--border);border-radius:1.25rem;padding:2rem;max-width:680px;width:100%;max-height:85vh;overflow-y:auto;transform:scale(.96);transition:transform .25s var(--ease)}
.modal-overlay.active .modal-content{transform:scale(1)}
.modal-close{position:absolute;top:.875rem;right:.875rem;display:inline-flex;align-items:center;justify-content:center;width:2.25rem;height:2.25rem;border-radius:9999px;border:1px solid var(--border);background:var(--bg-elevated);color:var(--text-secondary);cursor:pointer;transition:all .15s;z-index:2}
.modal-close:hover{background:rgba(239,68,68,0.12);border-color:var(--error);color:var(--error)}
.modal-content::-webkit-scrollbar{width:4px}.modal-content::-webkit-scrollbar-thumb{background:#2a3340;border-radius:4px}
body.modal-open{overflow:hidden}

/* ═══════════════════════════════════
   CONTACT FORM
   ═══════════════════════════════════ */
.form-group{margin-bottom:1.25rem}
.form-label{display:block;font-size:.8rem;font-weight:600;color:#fff;margin-bottom:.3rem}
.form-input,.form-textarea{width:100%;padding:.75rem .875rem;background:var(--bg-surface);border:1px solid var(--border);border-radius:.6rem;color:#fff;font-family:var(--font-body);font-size:.875rem;transition:border-color .15s,box-shadow .15s}
.form-input:focus,.form-textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(59,130,246,0.2);outline:none}
.form-input.error,.form-textarea.error{border-color:var(--error);box-shadow:0 0 0 3px rgba(239,68,68,0.12);animation:shake .3s}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-3px)}40%{transform:translateX(3px)}60%{transform:translateX(-3px)}80%{transform:translateX(2px)}}
.form-textarea{min-height:7rem;resize:vertical}
.form-error{display:none;align-items:center;gap:.25rem;font-size:.7rem;color:var(--error);margin-top:.25rem}.form-error.visible{display:flex}
.form-success{display:none;text-align:center;padding:2rem}.form-success.visible{display:block}
.form-success-icon{font-size:3.5rem;color:var(--success);margin-bottom:.75rem;animation:scaleIn .4s var(--ease)}
@keyframes scaleIn{0%{transform:scale(0);opacity:0}70%{transform:scale(1.1)}100%{transform:scale(1);opacity:1}}

/* ═══════════════════════════════════
   CTA BANNER
   ═══════════════════════════════════ */
.cta-banner{border-radius:1.25rem;padding:2.5rem;background:linear-gradient(135deg,#0c1520,#142030,#1a2a40);border:1px solid var(--border);position:relative;overflow:hidden}
.cta-banner::before{content:'';position:absolute;top:-40%;right:-15%;width:50%;height:180%;background:radial-gradient(ellipse at center,rgba(59,130,246,0.08),transparent 60%)}
.cta-banner-inner{position:relative;z-index:1;display:grid;gap:1.5rem}
@media(min-width:768px){.cta-banner-inner{grid-template-columns:2fr 1fr;align-items:center}}
.cta-feat{padding:.875rem 1rem;border-radius:.75rem;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.04)}

/* ═══════════════════════════════════
   ANIMATIONS
   ═══════════════════════════════════ */
[data-animate]{opacity:0;transform:translateY(20px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
[data-animate].animate-visible{opacity:1;transform:translateY(0)}
[data-animate-delay="1"]{transition-delay:.08s}[data-animate-delay="2"]{transition-delay:.16s}
[data-animate-delay="3"]{transition-delay:.24s}[data-animate-delay="4"]{transition-delay:.32s}
[data-animate-delay="5"]{transition-delay:.4s}[data-animate-delay="6"]{transition-delay:.48s}

/* Page transition */
#main-content{transition:opacity .15s,transform .15s}
#main-content.page-out{opacity:0;transform:translateY(6px)}
#main-content.page-enter{opacity:1;transform:translateY(0)}
@keyframes pageIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.page-enter-anim{animation:pageIn .35s var(--ease)}

/* ═══════════════════════════════════
   FOOTER
   ═══════════════════════════════════ */
.site-footer{padding:2.5rem var(--px);background:var(--bg-surface);border-top:1px solid var(--border);margin-bottom:4rem}
@media(min-width:768px){.site-footer{margin-bottom:0}}
.footer-inner{max-width:var(--max-w);margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:.5rem;text-align:center}
@media(min-width:768px){.footer-inner{flex-direction:row;justify-content:space-between;text-align:left}}
.footer-brand{font-family:var(--font-head);font-weight:700;font-size:1rem;color:#fff}
.footer-copy{font-size:.78rem;color:var(--text-muted)}
.social-links{display:flex;gap:.5rem;margin-top:.5rem}@media(min-width:768px){.social-links{margin-top:0}}
.social-link{display:inline-flex;align-items:center;justify-content:center;width:2rem;height:2rem;border-radius:.4rem;background:var(--bg-card);border:1px solid var(--border);color:var(--text-muted);transition:all .15s}
.social-link:hover{color:#fff;border-color:rgba(255,255,255,0.2)}

/* Language switcher */
.lang-switch{display:flex;align-items:center;gap:.3rem;font-size:.75rem;font-weight:600;margin-left:.5rem;padding-left:.75rem;border-left:1px solid var(--border)}
.lang-switch a{color:var(--text-muted);transition:color .15s;padding:.15rem .3rem}
.lang-switch a:hover{color:#fff}
.lang-switch a.lang-active{color:var(--accent-light)}
.lang-switch span{color:var(--border);user-select:none}

/* ═══════════════════════════════════
   UTILITY
   ═══════════════════════════════════ */
.text-accent{color:var(--accent-light)}
.eyebrow{font-size:.7rem;text-transform:uppercase;letter-spacing:.18em;font-weight:700;color:var(--accent-light);margin-bottom:.5rem}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.08),transparent);border:none;margin:2rem 0}
.overflow-x-auto{overflow-x:auto;-webkit-overflow-scrolling:touch}
.hide-scrollbar::-webkit-scrollbar{display:none}.hide-scrollbar{-ms-overflow-style:none;scrollbar-width:none}

/* ═══════════════════════════════════
   HERO TEXT ANIMATIONS (index.html)
   ═══════════════════════════════════ */
@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
@keyframes glowPulse{0%,100%{text-shadow:0 0 20px rgba(59,130,246,0.3),0 0 40px rgba(59,130,246,0.1)}50%{text-shadow:0 0 35px rgba(59,130,246,0.6),0 0 70px rgba(6,182,212,0.25)}}
@keyframes shimmer{0%{transform:translateX(-100%) skewX(-15deg)}100%{transform:translateX(200%) skewX(-15deg)}}
@keyframes wordReveal{0%{opacity:0;transform:translateY(24px);filter:blur(8px)}100%{opacity:1;transform:translateY(0);filter:blur(0)}}
@keyframes roleReveal{0%{opacity:0;letter-spacing:.8em}100%{opacity:1;letter-spacing:.3em}}
@keyframes bounceIn{0%{opacity:0;transform:scale(.3)}50%{transform:scale(1.08)}70%{transform:scale(.95)}100%{opacity:1;transform:scale(1)}}
@keyframes fadeUp{0%{opacity:0;transform:translateY(16px)}100%{opacity:1;transform:translateY(0)}}
@keyframes cursorBlink{0%,100%{opacity:1}50%{opacity:0}}
@keyframes floatOrb{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(30px,-20px) scale(1.15)}50%{transform:translate(-15px,-40px) scale(.9)}75%{transform:translate(-25px,15px) scale(1.1)}}

.hero-name{font-size:clamp(2.6rem,6.5vw,4.2rem);font-weight:800;line-height:1.05;letter-spacing:-0.05em;background:linear-gradient(135deg,#93c5fd 0%,#60a5fa 20%,#3b82f6 40%,#06b6d4 65%,#60a5fa 100%);background-size:250% 250%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradientShift 3.5s ease infinite,glowPulse 2.5s ease-in-out infinite;position:relative;display:inline-block}
.hero-name::after{content:'';position:absolute;top:0;left:0;width:60%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.12),transparent);animation:shimmer 3s ease-in-out infinite;pointer-events:none}
.hero-role{font-size:.9rem;letter-spacing:.3em;text-transform:uppercase;font-weight:600;color:var(--accent-light);animation:roleReveal 1s var(--ease) .3s both}
.hero-role::after{content:'';display:inline-block;width:2px;height:1em;background:var(--accent-light);margin-left:2px;vertical-align:text-bottom;animation:cursorBlink 1s step-end 1.3s 4}
.hero-word{display:inline-block;opacity:0;transform:translateY(24px);filter:blur(8px);animation:wordReveal .7s var(--ease) forwards}
.hero-kw{display:inline-flex;align-items:center;gap:.35rem;padding:.35rem .9rem;border-radius:9999px;font-size:.75rem;font-weight:600;border:1px solid rgba(255,255,255,0.12);color:#fff;background:rgba(255,255,255,0.03);backdrop-filter:blur(4px);transition:all .3s;opacity:0;animation:bounceIn .6s var(--ease) forwards}
.hero-kw:hover{border-color:var(--accent-light);background:var(--accent-bg);transform:translateY(-2px);box-shadow:0 4px 20px rgba(59,130,246,0.2)}
.hero-kw .material-symbols-outlined{font-size:1rem;color:var(--accent-light)}
.hero-desc{opacity:0;animation:fadeUp .8s var(--ease) forwards}
.hero-orb{position:absolute;border-radius:50%;filter:blur(80px);pointer-events:none;z-index:0;opacity:.35}
.hero-orb-1{width:350px;height:350px;background:rgba(59,130,246,0.15);top:-15%;left:5%;animation:floatOrb 18s ease-in-out infinite}
.hero-orb-2{width:280px;height:280px;background:rgba(6,182,212,0.1);bottom:-20%;right:10%;animation:floatOrb 22s ease-in-out infinite;animation-delay:-8s}
.hero-orb-3{width:200px;height:200px;background:rgba(139,92,246,0.08);top:40%;right:-5%;animation:floatOrb 20s ease-in-out infinite;animation-delay:-14s}

/* ── Hero Profile Photo ── */
.hero-top-row{display:flex;align-items:center;justify-content:space-between;gap:1.5rem}
.hero-photo-wrapper{display:flex;align-items:center;flex-shrink:0}
.hero-photo-ring{position:relative;width:150px;height:150px;border-radius:50%;padding:3px;background:linear-gradient(135deg,#60a5fa,#3b82f6,#06b6d4,#22d3ee,#3b82f6);background-size:300% 300%;animation:profileRingShift 4s ease infinite;box-shadow:0 0 30px rgba(59,130,246,0.2),0 0 60px rgba(6,182,212,0.08)}
.hero-photo{width:100%;height:100%;border-radius:50%;object-fit:cover;object-position:center 20%;display:block;background:var(--bg-card)}
.hero-photo-ring::after{content:'';position:absolute;inset:-1px;border-radius:50%;background:transparent;box-shadow:inset 0 0 20px rgba(0,0,0,0.3);pointer-events:none}
@keyframes profileRingShift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

@media(min-width:640px){
  .hero-photo-ring{width:175px;height:175px}
}
@media(min-width:1024px){
  .hero-photo-ring{width:200px;height:200px}
}

@media(max-width:540px){
  .hero-top-row{flex-direction:column;align-items:flex-start;gap:1rem}
}

/* ── LinkedIn Disclaimer (contact.html) ── */
.disclaimer-card{display:flex;gap:1.5rem;padding:2rem 2.25rem;border-radius:1.25rem;background:linear-gradient(135deg,rgba(59,130,246,0.06),rgba(6,182,212,0.03));border:1px solid rgba(59,130,246,0.12);position:relative;overflow:hidden}
.disclaimer-card::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--accent-light),var(--tertiary));border-radius:4px 0 0 4px}
.disclaimer-icon{flex-shrink:0;display:flex;align-items:flex-start;padding-top:.15rem}
.disclaimer-icon .material-symbols-outlined{font-size:2rem;color:var(--accent-light);opacity:.7}
.disclaimer-body{display:flex;flex-direction:column;gap:1rem}
.disclaimer-body p{font-size:.95rem;color:var(--text-secondary);line-height:1.85;text-align:justify}
.disclaimer-footer{font-size:.85rem;color:var(--accent-light);font-weight:500;font-style:italic;letter-spacing:0.01em;padding-top:.25rem}

@media(max-width:640px){
  .disclaimer-card{flex-direction:column;gap:1rem;padding:1.5rem}
  .disclaimer-card::before{width:100%;height:3px;border-radius:3px 3px 0 0}
  .disclaimer-body p{text-align:left}
}

/* ── Backward compatibility aliases ── */
.glass,.glass-strong,.glass-panel,.glass-panel-strong{background:var(--bg-card);border:1px solid var(--border);backdrop-filter:none;-webkit-backdrop-filter:none}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:1rem;padding:1.75rem;transition:all .25s var(--ease)}.feature-card:hover{border-color:rgba(59,130,246,0.25);background:var(--bg-card-hover);transform:translateY(-2px)}
.feature-card-icon{display:inline-flex;align-items:center;justify-content:center;width:2.75rem;height:2.75rem;border-radius:.75rem;background:var(--accent-bg);color:var(--accent-light);font-size:1.4rem;margin-bottom:1rem}
.stat-value{font-family:var(--font-head);font-size:1.6rem;font-weight:800;color:#fff;line-height:1.1}
.stat-label{font-size:.7rem;color:var(--text-muted);margin-top:.2rem}
.section-eyebrow{font-size:.7rem;text-transform:uppercase;letter-spacing:.18em;font-weight:700;color:var(--accent-light);margin-bottom:.5rem}
.section-desc{font-size:1rem;color:var(--text-secondary);line-height:1.7}
.section-title{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;color:#fff}
.cta-feature{padding:.875rem 1rem;border-radius:.75rem;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.04)}
.btn-primary{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.5rem;border-radius:9999px;font-weight:600;font-size:.85rem;border:none;cursor:pointer;background:#2563eb;color:#fff;transition:all .15s;font-family:var(--font-body);white-space:nowrap}
.btn-primary:hover{background:#3b82f6;transform:translateY(-1px);box-shadow:0 4px 20px rgba(37,99,235,0.35)}
.btn-primary:active{transform:scale(.97)}
.btn-ghost{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.5rem;border-radius:9999px;font-weight:600;font-size:.85rem;background:transparent;border:1px solid var(--border);color:var(--text);cursor:pointer;transition:all .15s;font-family:var(--font-body);white-space:nowrap}
.btn-ghost:hover{background:rgba(255,255,255,0.04);border-color:rgba(255,255,255,0.18);color:#fff}.btn-ghost:active{transform:scale(.97)}
.card-hover{transition:all .25s var(--ease)}.card-hover:hover{transform:translateY(-2px)}
.card-glow{transition:all .25s var(--ease)}.card-glow:hover{border-color:rgba(59,130,246,0.25)}
.shadow-ambient,.shadow-ambient-lg,.shadow-glow{box-shadow:0 8px 30px rgba(0,0,0,0.2)}
.gradient-border,.text-gradient{}

/* ═══════════════════════════════════
   COOKIE BANNER + PREFERENCES PANEL
   ═══════════════════════════════════ */
.cookie-banner{position:fixed;bottom:0;left:0;right:0;z-index:200;transform:translateY(100%);transition:transform .4s var(--ease)}
.cookie-banner.visible{transform:translateY(0)}
.cookie-bar{background:var(--bg-card);border-top:1px solid var(--border);padding:1rem var(--px);box-shadow:0 -4px 30px rgba(0,0,0,0.4)}
.cookie-inner{max-width:var(--max-w);margin:0 auto;display:flex;flex-wrap:wrap;align-items:center;gap:1rem}
.cookie-text{flex:1;min-width:240px;font-size:.8rem;color:var(--text-secondary);line-height:1.5}
.cookie-text a{color:var(--accent-light);text-decoration:underline;font-weight:600}
.cookie-actions{display:flex;gap:.5rem;flex-shrink:0;flex-wrap:wrap}
.cookie-btn{padding:.45rem 1.1rem;border-radius:9999px;font-size:.78rem;font-weight:600;cursor:pointer;border:none;font-family:var(--font-body);transition:all .15s;white-space:nowrap}
.cookie-btn-accept{background:#2563eb;color:#fff}.cookie-btn-accept:hover{background:#3b82f6}
.cookie-btn-reject{background:transparent;border:1px solid var(--border);color:var(--text-secondary)}.cookie-btn-reject:hover{color:#fff;border-color:rgba(255,255,255,0.18)}
.cookie-btn-settings{background:transparent;color:var(--text-secondary);font-weight:500;font-size:.75rem;text-decoration:underline;padding:.45rem .5rem}.cookie-btn-settings:hover{color:#fff}

/* Preferences panel */
.cookie-prefs{display:none;background:var(--bg-card);border-top:1px solid var(--border);padding:1.25rem var(--px)}
.cookie-prefs.open{display:block}
.cookie-prefs-inner{max-width:var(--max-w);margin:0 auto}
.cookie-prefs h4{font-size:.9rem;color:#fff;margin-bottom:1rem}
.cookie-pref-option{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem 0;border-bottom:1px solid var(--border-light)}
.cookie-pref-option:last-child{border-bottom:none}
.cookie-pref-option span{font-size:.82rem;color:var(--text-secondary)}
.cookie-pref-option .required{font-size:.68rem;color:var(--accent-light);font-weight:600}
.cookie-pref-save{margin-top:1rem;display:flex;gap:.5rem;justify-content:flex-end}

/* Toggle switch */
.cookie-toggle{position:relative;display:inline-block;width:40px;height:22px;flex-shrink:0}
.cookie-toggle input{opacity:0;width:0;height:0}
.cookie-toggle .slider{position:absolute;cursor:pointer;inset:0;background:var(--bg-elevated);border-radius:22px;transition:.2s;border:1px solid var(--border)}
.cookie-toggle .slider::before{content:'';position:absolute;height:16px;width:16px;left:2px;bottom:2px;background:#fff;border-radius:50%;transition:.2s}
.cookie-toggle input:checked+.slider{background:var(--accent);border-color:var(--accent)}
.cookie-toggle input:checked+.slider::before{transform:translateX(18px)}
.cookie-toggle input:disabled+.slider{opacity:.5;cursor:not-allowed}

/* ═══════════════════════════════════
   BLOG / ARTICOLI — layout 3 colonne (3-6-3)
   ═══════════════════════════════════ */
.blog-layout{display:grid;gap:2.5rem;align-items:start;grid-template-columns:1fr}
@media(min-width:1024px){
  .blog-layout{grid-template-columns:1fr 7fr 4fr}
  .blog-article{grid-column:2}
  .blog-sidebar{grid-column:3}
}

/* ── Article Content Area ── */
.blog-article{min-height:400px;max-width:680px;margin:0 auto}
.blog-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:5rem 2rem;text-align:center}
.blog-loading-spinner{width:2.5rem;height:2.5rem;border:3px solid var(--border);border-top-color:var(--accent-light);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.blog-error{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:4rem 2rem;text-align:center;color:var(--error);gap:.75rem}
.blog-error .material-symbols-outlined{font-size:3rem}
.blog-error p{color:var(--text-muted)}

/* Article header — elegante e arioso */
.article-header{margin-bottom:3rem;padding-bottom:2.5rem;border-bottom:1px solid var(--border);position:relative}
.article-header::after{content:'';position:absolute;bottom:-1px;left:0;width:4rem;height:2px;background:var(--accent-light);border-radius:1px}
.article-keywords{display:flex;flex-wrap:wrap;gap:.4rem;margin-bottom:1.25rem}
.article-title{font-family:var(--font-head);font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:800;color:#fff;line-height:1.15;letter-spacing:-0.04em;margin-bottom:1.25rem}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-bottom:1.5rem}
.article-meta-item{display:inline-flex;align-items:center;gap:.35rem;font-size:.8rem;color:var(--text-muted);font-weight:500}
.article-meta-item .material-symbols-outlined{font-size:1.05rem;color:var(--accent-light)}
.article-meta-sep{color:var(--border);margin:0 .35rem;font-weight:300}

/* Pulsante download PDF */
.btn-pdf{display:inline-flex;align-items:center;gap:.3rem;padding:.3rem .75rem;border-radius:9999px;border:1px solid rgba(239,68,68,0.25);background:rgba(239,68,68,0.08);color:#f87171;font-size:.72rem;font-weight:600;cursor:pointer;transition:all .2s;font-family:var(--font-body);white-space:nowrap}
.btn-pdf:hover{background:rgba(239,68,68,0.15);border-color:rgba(239,68,68,0.4);color:#fca5a5}
.btn-pdf .material-symbols-outlined{font-size:1rem}
.article-description{font-size:1.05rem;color:var(--text-secondary);line-height:1.75;padding:1.25rem 1.5rem;background:linear-gradient(135deg,rgba(59,130,246,0.06),rgba(59,130,246,0.02));border:1px solid rgba(59,130,246,0.1);border-radius:.875rem;font-style:normal}
.article-description::before{content:'“';font-family:var(--font-head);font-size:2.5rem;color:var(--accent-light);display:block;line-height:1;margin-bottom:.5rem;opacity:.5}

/* Article body — ottimizzato per la lettura */
.article-body{display:flex;flex-direction:column;gap:2rem}
.article-body p{font-size:1rem;color:var(--text-secondary);line-height:1.85;letter-spacing:0.01em}
.article-introduction{margin-bottom:.5rem}
.article-introduction p{font-size:1.1rem;color:#e2e8f0;line-height:1.9}
.article-introduction p::first-letter{font-size:3.2rem;font-weight:800;font-family:var(--font-head);float:left;line-height:.85;margin-right:.6rem;margin-top:.15rem;color:var(--accent-light)}
.article-section-title{font-family:var(--font-head);font-size:1.4rem;font-weight:700;color:#fff;margin-top:1rem;letter-spacing:-0.02em;position:relative;padding-bottom:.6rem}
.article-section-title::after{content:'';position:absolute;bottom:0;left:0;width:2.5rem;height:1px;background:rgba(59,130,246,0.3);border-radius:1px}
.article-subsection-title{font-family:var(--font-head);font-size:1.1rem;font-weight:700;color:#e2e8f0;margin-top:.5rem;letter-spacing:-0.01em}
.article-list{margin:.25rem 0;padding-left:1.5rem;display:flex;flex-direction:column;gap:.5rem}
.article-list li{font-size:.92rem;color:var(--text-secondary);line-height:1.7;list-style-type:none;position:relative;padding-left:1.25rem}
.article-list li::before{content:'';position:absolute;left:0;top:.55rem;width:6px;height:6px;border-radius:50%;background:var(--accent-light);opacity:.6}
.article-conclusion{margin-top:1.5rem;padding:2rem;background:linear-gradient(135deg,rgba(59,130,246,0.08),rgba(6,182,212,0.04));border:1px solid rgba(59,130,246,0.12);border-radius:1rem;position:relative;overflow:hidden}
.article-conclusion::before{content:'';position:absolute;top:0;left:0;width:100%;height:2px;background:linear-gradient(90deg,transparent,rgba(59,130,246,0.4),transparent)}
.article-conclusion .article-section-title{margin-top:0;padding-bottom:.5rem}
.article-conclusion .article-section-title::after{display:none}
.article-conclusion p{color:#e2e8f0;font-size:.98rem}

/* Inline links nel corpo articolo */
.article-inline-link{color:var(--accent-light);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;font-weight:500;transition:all .15s}
.article-inline-link:hover{color:#93c5fd;text-decoration-thickness:2px}

/* Code blocks */
.article-code-block{background:#0d1520;border:1px solid var(--border);border-radius:.65rem;padding:1.25rem 1.5rem;margin:1rem 0;overflow-x:auto;font-family:'JetBrains Mono','Fira Code','Cascadia Code',monospace;font-size:.82rem;line-height:1.65;color:#e2e8f0;white-space:pre-wrap;word-break:break-word;overflow-wrap:break-word}
.article-code-block code{background:transparent;padding:0;font-size:inherit;color:inherit}
.inline-code{background:rgba(59,130,246,0.12);color:var(--accent-light);padding:.12rem .4rem;border-radius:.3rem;font-family:'JetBrains Mono','Fira Code',monospace;font-size:.85em;font-weight:500}

/* Fonti */
.article-sources{margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border)}
.article-sources-title{display:flex;align-items:center;gap:.5rem;font-family:var(--font-head);font-size:1rem;font-weight:700;color:#fff;margin-bottom:1.25rem}
.article-sources-title .material-symbols-outlined{font-size:1.2rem;color:var(--accent-light)}
.article-sources-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:.65rem}
.article-sources-list li{padding:.85rem 1.15rem;background:var(--bg-card);border:1px solid var(--border-light);border-radius:.75rem;transition:all .2s}
.article-sources-list li:hover{border-color:rgba(59,130,246,0.25);background:var(--bg-card-hover)}
.article-source-link{display:inline-flex;align-items:center;gap:.45rem;color:var(--accent-light);font-weight:600;font-size:.85rem;text-decoration:none;transition:color .15s}
.article-source-link:hover{color:#93c5fd}
.article-source-num{font-size:.68rem;color:var(--text-muted);font-weight:700;min-width:1.4rem;font-family:var(--font-head)}
.article-source-text{flex:1}
.article-source-icon{font-size:.8rem;opacity:.5;transition:opacity .15s}
.article-sources-list li:hover .article-source-icon{opacity:1}
.article-source-desc{font-size:.75rem;color:var(--text-muted);margin-top:.35rem;margin-left:1.85rem;line-height:1.5}

/* ═══════════════════════════════════
   BLOG SIDEBAR — elegante e moderna
   ═══════════════════════════════════ */
.blog-sidebar{position:sticky;top:5rem;display:flex;flex-direction:column;gap:0;background:transparent;max-height:calc(100vh - 7rem);overflow:hidden}

/* Hero nella sidebar */
.blog-hero{padding:0 0 1.25rem;margin-bottom:1rem;border-bottom:1px solid var(--border);flex-shrink:0}
.blog-hero .badge{font-size:.65rem;padding:.2rem .65rem}
.blog-hero-title{font-family:var(--font-head);font-size:1.35rem;font-weight:800;color:#fff;letter-spacing:-0.03em;line-height:1.1;margin-bottom:.3rem}
.blog-hero-desc{font-size:.73rem;color:var(--text-muted);line-height:1.5}
.blog-sidebar-header{display:flex;align-items:center;justify-content:space-between;padding:0 0 .75rem;margin-bottom:0;flex-shrink:0}
.blog-sidebar-header h3{font-size:.85rem;color:#fff;display:flex;align-items:center;gap:.4rem;font-family:var(--font-head)}
.blog-sidebar-header h3 .material-symbols-outlined{font-size:1.05rem;color:var(--accent-light)}
.blog-sidebar-header span{font-size:.65rem;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:.06em}

.blog-list{display:flex;flex-direction:column;gap:.45rem;flex:1;overflow-y:auto;padding-right:.3rem;min-height:0}
.blog-list::-webkit-scrollbar{width:3px}.blog-list::-webkit-scrollbar-thumb{background:#2a3340;border-radius:2px}

.blog-list-item{display:flex;flex-direction:column;gap:.35rem;padding:.85rem 1rem;border:none;border-radius:.75rem;background:var(--bg-card);border:1px solid var(--border-light);color:var(--text);text-align:left;cursor:pointer;transition:all .25s var(--ease);font-family:var(--font-body);width:100%;position:relative}
.blog-list-item:hover{background:var(--bg-card-hover);border-color:rgba(255,255,255,0.12);transform:translateX(2px)}
.blog-list-item--active,
.blog-list-item[aria-current="true"]{background:linear-gradient(135deg,rgba(59,130,246,0.12),rgba(59,130,246,0.04));border-color:rgba(59,130,246,0.25);box-shadow:0 0 20px rgba(59,130,246,0.06),inset 0 1px 0 rgba(59,130,246,0.08)}
.blog-list-item--active::before,
.blog-list-item[aria-current="true"]::before{content:'';position:absolute;left:0;top:.65rem;bottom:.65rem;width:3px;background:var(--accent-light);border-radius:0 2px 2px 0}
.blog-list-item-top{display:flex;align-items:center;gap:.45rem}
.blog-list-item-date{font-size:.6rem;text-transform:uppercase;letter-spacing:.08em;font-weight:700;color:var(--accent-light)}
.blog-list-item-lang{font-size:.52rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--tertiary);background:rgba(6,182,212,0.12);padding:.08rem .38rem;border-radius:9999px;border:1px solid rgba(6,182,212,0.15)}
.blog-list-item-title{font-family:var(--font-head);font-size:.78rem;font-weight:700;color:#fff;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .15s}
.blog-list-item:hover .blog-list-item-title{color:var(--accent-light)}
.blog-list-item--active .blog-list-item-title,
.blog-list-item[aria-current="true"] .blog-list-item-title{color:#fff}
.blog-list-item-summary{font-size:.67rem;color:var(--text-muted);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.blog-list-item-sources{display:inline-flex;align-items:center;gap:.2rem;font-size:.58rem;color:var(--text-muted);margin-top:.05rem;font-weight:500}
.blog-list-item-sources .material-symbols-outlined{font-size:.65rem;opacity:.6}

/* ═══════════════════════════════════
   BLOG RESPONSIVE — mobile elegante
   ═══════════════════════════════════ */
@media(max-width:1023px){
  .blog-layout{display:flex;flex-direction:column-reverse;gap:1.75rem}
  .blog-sidebar{position:static;max-height:none;overflow:visible}
  .blog-hero{padding:0 0 .75rem;margin-bottom:.75rem}
  .blog-sidebar-header{padding:0 0 .5rem}
  .blog-list{flex-direction:row;gap:.45rem;max-height:none;overflow-x:auto;overflow-y:hidden;padding-bottom:.3rem;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;flex:none;min-height:auto}
  .blog-list::-webkit-scrollbar{height:2px}
  .blog-list-item{flex:0 0 240px;scroll-snap-align:start;padding:.75rem .85rem}
  .blog-list-item--active::before,
  .blog-list-item[aria-current="true"]::before{left:.4rem;right:.4rem;top:auto;bottom:0;width:auto;height:3px;border-radius:2px 2px 0 0}
  .blog-article{max-width:100%;margin:0}
}

@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}html{scroll-behavior:auto}}