/* Art direction: Tecnico/pratico + growth story → premium dark, sobrio
   Palette: quasi nero, antracite, accento verde menta/Spotify
   Typography: General Sans (display) + Satoshi (body) */

/* ── TOKENS ─────────────────────────────────────────────────── */
:root {
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);
  --text-hero: clamp(3rem,     0.5rem  + 7vw,    7.5rem);

  --space-1:  0.25rem; --space-2:  0.5rem;  --space-3:  0.75rem;
  --space-4:  1rem;    --space-6:  1.5rem;  --space-8:  2rem;
  --space-10: 2.5rem;  --space-12: 3rem;    --space-16: 4rem;
  --space-20: 5rem;    --space-24: 6rem;

  --color-bg:             #0b0b0b;
  --color-surface:        #111111;
  --color-surface-2:      #161616;
  --color-surface-offset: #1d1d1d;
  --color-surface-dynamic:#252525;
  --color-divider:        #2a2a2a;
  --color-border:         #333333;
  --color-text:           #f0eeea;
  --color-text-muted:     #9a9893;
  --color-text-faint:     #5a5957;
  --color-text-inverse:   #0b0b0b;
  --color-primary:        #1adc6e;
  --color-primary-hover:  #17c460;
  --color-primary-active: #12a34f;
  --color-primary-highlight: #0f2b1a;

  --radius-sm: 0.375rem; --radius-md: 0.5rem;
  --radius-lg: 0.75rem;  --radius-xl: 1rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.6);

  --content-narrow:  640px;
  --content-default: 960px;
  --content-wide:    1200px;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --font-display: 'General Sans', 'Inter', sans-serif;
  --font-body:    'Satoshi', 'Inter', sans-serif;
}

/* ── RESET / BASE ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}
body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
}
img, svg { display: block; max-width: 100%; height: auto; }
ul { list-style: none; }
button, a { cursor: pointer; transition: color var(--transition-interactive), background var(--transition-interactive), border-color var(--transition-interactive), opacity var(--transition-interactive); }
a { text-decoration: none; color: inherit; }
button { border: none; background: none; font: inherit; color: inherit; }
::selection { background: rgba(26,220,110,0.25); color: var(--color-text); }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── CONTAINER ───────────────────────────────────────────────── */
.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-12));
}
.container--wide { max-width: var(--content-wide); }

/* ── NAVIGATION ──────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(11,11,11,0.85);
  backdrop-filter: blur(20px) saturate(1.3);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  border-bottom: 1px solid rgba(240,238,234,0.07);
  height: 64px;
  display: flex; align-items: center;
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-4), 5vw, var(--space-12));
}
.nav__logo {
  display: flex; align-items: center; gap: var(--space-3);
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--text-base); letter-spacing: -0.01em;
  color: var(--color-text);
}
.nav__logo svg { flex-shrink: 0; }
.nav__links {
  display: flex; align-items: center; gap: var(--space-1);
}
.nav__link {
  font-size: var(--text-sm); font-weight: 500;
  color: var(--color-text-muted); padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
}
.nav__link:hover { color: var(--color-text); background: rgba(240,238,234,0.06); }
.nav__link--active { color: var(--color-primary); background: rgba(240,238,234,0.06); }
.nav__cta {
  font-size: var(--text-sm); font-weight: 600;
  background: var(--color-primary); color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-full);
}
.nav__cta:hover { background: var(--color-primary-hover); }
.nav__hamburger { display: none; flex-direction: column; gap: 5px; padding: var(--space-2); }
.nav__hamburger span { display: block; width: 22px; height: 2px; background: var(--color-text); border-radius: 2px; transition: transform 0.25s, opacity 0.25s; }
.nav__mobile { display: none; }

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__cta-desktop { display: none; }
  .nav__hamburger { display: flex; }
  .nav__mobile {
    position: fixed; top: 64px; left: 0; right: 0; bottom: 0; z-index: 99;
    background: var(--color-bg); border-top: 1px solid var(--color-divider);
    flex-direction: column; gap: var(--space-1); padding: var(--space-4);
  }
  .nav__mobile.is-open { display: flex; }
  .nav__mobile .nav__link { font-size: var(--text-lg); padding: var(--space-3) var(--space-4); }
  .nav__mobile .nav__cta { align-self: flex-start; margin-top: var(--space-4); font-size: var(--text-base); }
}

/* ── PAGE WRAPPER ────────────────────────────────────────────── */
.page { padding-top: 64px; }

/* ── SECTION BASE ────────────────────────────────────────────── */
.section {
  padding-block: clamp(var(--space-12), 10vw, var(--space-24));
}
.section--dark { background: var(--color-bg); }
.section--surface { background: var(--color-surface); }
.section__label {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-primary);
  margin-bottom: var(--space-4);
}
.section__label::before { content: ''; display: block; width: 20px; height: 2px; background: var(--color-primary); }
.section__title {
  font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: 700; letter-spacing: -0.03em; line-height: 1.1;
  color: var(--color-text); margin-bottom: var(--space-4);
}
.section__sub {
  font-size: var(--text-base); color: var(--color-text-muted);
  max-width: 55ch; line-height: 1.7;
}

/* ── HERO ────────────────────────────────────────────────────── */
.hero {
  min-height: calc(100dvh - 64px);
  display: flex; flex-direction: column; justify-content: center;
  position: relative; overflow: hidden;
  padding-block: var(--space-20);
}
.hero__bg {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background: radial-gradient(ellipse 80% 60% at 60% 40%, rgba(26,220,110,0.07) 0%, transparent 70%);
}
.hero__grid-deco {
  position: absolute; inset: 0; pointer-events: none; z-index: 0; opacity: 0.03;
  background-image:
    repeating-linear-gradient(0deg, transparent, transparent 59px, var(--color-text) 60px),
    repeating-linear-gradient(90deg, transparent, transparent 59px, var(--color-text) 60px);
}
.hero__content { position: relative; z-index: 1; }
.hero__badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  border: 1px solid var(--color-primary); color: var(--color-primary);
  border-radius: var(--radius-full); font-size: var(--text-xs);
  font-weight: 600; letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-4); margin-bottom: var(--space-8);
}
.hero__badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-primary); animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot { 0%,100%{ opacity:1; transform:scale(1); } 50%{ opacity:0.5; transform:scale(1.3); } }
.hero__title {
  font-family: var(--font-display); font-size: var(--text-hero);
  font-weight: 800; letter-spacing: -0.04em; line-height: 0.95;
  color: var(--color-text); margin-bottom: var(--space-6);
}
.hero__title em { color: var(--color-primary); font-style: normal; }
.hero__sub {
  font-size: var(--text-lg); color: var(--color-text-muted);
  max-width: 48ch; line-height: 1.6; margin-bottom: var(--space-10);
}
.hero__actions { display: flex; gap: var(--space-4); flex-wrap: wrap; align-items: center; }
.hero__scroll-hint {
  position: absolute; bottom: var(--space-8); left: 50%; transform: translateX(-50%);
  z-index: 1; display: flex; flex-direction: column; align-items: center;
  gap: var(--space-2); color: var(--color-text-faint); font-size: var(--text-xs);
}
.scroll-arrow { width: 20px; height: 32px; border: 1px solid currentColor; border-radius: var(--radius-full); position: relative; }
.scroll-arrow::after {
  content: ''; position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 4px; border-radius: 50%; background: currentColor;
  animation: scroll-dot 2s ease-in-out infinite;
}
@keyframes scroll-dot { 0%,100%{ transform:translateX(-50%) translateY(0); opacity:1; } 80%{ transform:translateX(-50%) translateY(14px); opacity:0; } }

/* ── BUTTONS ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-family: var(--font-body); font-size: var(--text-sm); font-weight: 600;
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-full);
  transition: all var(--transition-interactive);
}
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); box-shadow: 0 4px 20px rgba(26,220,110,0.35); }
.btn--ghost { border: 1px solid var(--color-border); color: var(--color-text-muted); }
.btn--ghost:hover { border-color: var(--color-text); color: var(--color-text); }

/* ── CARDS ───────────────────────────────────────────────────── */
.card {
  background: var(--color-surface-2); border-radius: var(--radius-xl);
  border: 1px solid rgba(240,238,234,0.07);
  padding: var(--space-8);
  transition: transform var(--transition-interactive), border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.card:hover { transform: translateY(-3px); border-color: rgba(26,220,110,0.3); box-shadow: 0 12px 40px rgba(0,0,0,0.5); }

/* ── STATS ROW ───────────────────────────────────────────────── */
.stats { display: flex; gap: var(--space-6); flex-wrap: wrap; }
.stat { display: flex; flex-direction: column; align-items: center; text-align: center; min-width: 80px; }
.stat__num {
  font-family: var(--font-display); font-size: var(--text-2xl);
  font-weight: 800; letter-spacing: -0.03em; color: var(--color-primary); line-height: 1;
}
.stat__label { font-size: var(--text-xs); color: var(--color-text-muted); letter-spacing: 0.06em; text-transform: uppercase; margin-top: var(--space-1); text-align: center; }

/* ── SKILL PILLS ─────────────────────────────────────────────── */
.skill-grid { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.skill-pill {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-3); border-radius: var(--radius-full);
  border: 1px solid var(--color-border); color: var(--color-text-muted);
  transition: all var(--transition-interactive);
}
.skill-pill:hover { border-color: var(--color-primary); color: var(--color-primary); background: var(--color-primary-highlight); }
.skill-pill--accent { border-color: rgba(26,220,110,0.4); color: var(--color-primary); background: var(--color-primary-highlight); }

/* ── TIMELINE ────────────────────────────────────────────────── */
.timeline { position: relative; }
.timeline::before {
  content: ''; position: absolute; left: 0; top: var(--space-3);
  bottom: var(--space-3); width: 1px; background: var(--color-divider);
}
.timeline-item { padding-left: var(--space-8); position: relative; margin-bottom: var(--space-10); }
.timeline-item:last-child { margin-bottom: 0; }
.timeline-item::before {
  content: ''; position: absolute; left: -5px; top: var(--space-3);
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--color-bg); border: 2px solid var(--color-primary);
}
.timeline-item__date {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--color-primary); margin-bottom: var(--space-2);
}
.timeline-item__title {
  font-family: var(--font-display); font-size: var(--text-xl);
  font-weight: 700; letter-spacing: -0.02em; color: var(--color-text);
  line-height: 1.2; margin-bottom: var(--space-1);
}
.timeline-item__company { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-4); }
.timeline-item__list { display: flex; flex-direction: column; gap: var(--space-2); }
.timeline-item__list li {
  font-size: var(--text-sm); color: var(--color-text-muted);
  padding-left: var(--space-4); position: relative;
}
.timeline-item__list li::before { content: '→'; position: absolute; left: 0; color: var(--color-primary); font-size: 0.8em; }

/* ── GRID LAYOUTS ────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr)); gap: var(--space-6); }
@media (max-width: 768px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* ── DIVIDER ─────────────────────────────────────────────────── */
.divider { height: 1px; background: var(--color-divider); margin-block: var(--space-12); }

/* ── FOOTER ──────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-8);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap;
  gap: var(--space-4);
}
.footer__copy { font-size: var(--text-xs); color: var(--color-text-faint); }
.footer__links { display: flex; gap: var(--space-6); }
.footer__link { font-size: var(--text-xs); color: var(--color-text-muted); }
.footer__link:hover { color: var(--color-primary); }

/* ── SCROLL REVEAL ───────────────────────────────────────────── */
.fade-in { opacity: 1; }
@supports (animation-timeline: scroll()) {
  .fade-in {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 5% entry 60%;
  }
  @keyframes reveal-fade { to { opacity: 1; } }
}

/* ── CONTACT FORM ────────────────────────────────────────────── */
.form { display: flex; flex-direction: column; gap: var(--space-4); }
.form-group { display: flex; flex-direction: column; gap: var(--space-2); }
.form-label { font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted); }
.form-input, .form-textarea {
  background: var(--color-surface-2); border: 1px solid var(--color-border);
  color: var(--color-text); border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4); font: inherit; font-size: var(--text-base);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.form-input:focus, .form-textarea:focus {
  outline: none; border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,220,110,0.15);
}
.form-textarea { min-height: 140px; resize: vertical; }
.form-input::placeholder, .form-textarea::placeholder { color: var(--color-text-faint); }

/* ── PROFILE IMG RING ────────────────────────────────────────── */
.avatar-ring {
  width: clamp(120px, 18vw, 200px); aspect-ratio: 1;
  border-radius: 50%; border: 2px solid var(--color-primary);
  padding: 4px; flex-shrink: 0;
  background: var(--color-surface);
  box-shadow: 0 0 40px rgba(26,220,110,0.2);
}
.avatar-ring img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
/* FIX stats center */
.stat, .stats div { display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; }
.stat h2, .stat .number { text-align:center; width:100%; }

/* Modal competenze */
.skill-modal {
 position:fixed; inset:0; background:rgba(0,0,0,0.8);
 display:none; align-items:center; justify-content:center; z-index:9999;
}
.skill-modal.active { display:flex; }
.skill-modal-content {
 width:80%; max-width:900px; height:60%;
 border-radius:20px; overflow:hidden; position:relative;
 background-size:cover; background-position:center;
 display:flex; align-items:end; padding:30px; color:white;
}
.skill-modal-content::after {
 content:""; position:absolute; inset:0; background:rgba(0,0,0,0.5);
}
.skill-modal-text { position:relative; z-index:2; }
.skill-close {
 position:absolute; top:15px; right:20px; font-size:24px; cursor:pointer; z-index:3;
}

/* ── MOBILE FIXES ────────────────────────────────────────────── */

/* Prevent horizontal overflow on mobile */
html, body {
  overflow-x: hidden;
  max-width: 100%;
}

/* Hero: fix text overflow and padding on small screens */
@media (max-width: 480px) {
  .hero {
    padding-block: var(--space-12) var(--space-20);
  }
  .hero__title {
    font-size: clamp(2.2rem, 12vw, 4rem);
    letter-spacing: -0.03em;
  }
  .hero__sub {
    font-size: var(--text-base);
  }
  .hero__actions {
    gap: var(--space-3);
    flex-direction: column;
    align-items: flex-start;
  }
  .hero__scroll-hint {
    bottom: var(--space-4);
  }
}

/* Stats row: wrap and center on mobile */
@media (max-width: 480px) {
  .stats {
    justify-content: center;
    gap: var(--space-8);
  }
}

/* Nav mobile menu: ensure scrollable if tall */
@media (max-width: 768px) {
  .nav__mobile {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* About page: unstick sidebar on mobile, fix profile info layout */
@media (max-width: 768px) {
  .sticky-aside {
    position: static;
  }
  .about-layout {
    gap: var(--space-8);
  }
  .profile-info-row {
    flex-direction: column;
    gap: var(--space-1);
  }
  .profile-info-row span:last-child {
    word-break: break-word;
  }
}

/* Experience page: hide sidebar navigation on mobile, fix header stacking */
@media (max-width: 768px) {
  .exp-layout {
    gap: var(--space-8);
  }
  .exp-sidebar {
    position: static;
    display: none;
  }
  .exp-block__header {
    flex-direction: column;
    gap: var(--space-2);
  }
  .exp-block__title {
    font-size: var(--text-xl);
  }
}

/* Contact page: reduce gap, disable horizontal hover shift on touch */
@media (max-width: 768px) {
  .contact-layout {
    gap: var(--space-8);
  }
}

/* Prevent sticky hover states on touch devices */
@media (hover: none) {
  .card:hover,
  .highlight-card:hover,
  .skill-card:hover,
  .contact-link:hover,
  .btn--primary:hover,
  .btn--ghost:hover {
    transform: none;
    box-shadow: none;
  }
  .contact-link:hover {
    transform: none;
  }
  .highlight-card:hover .highlight-card__bg {
    opacity: 0.1;
  }
  .highlight-card:hover::after {
    transform: scaleX(0);
  }
}

/* Form inputs: font-size 16px prevents iOS auto-zoom on focus */
@media (max-width: 768px) {
  .form-input,
  .form-textarea {
    font-size: 16px;
  }
}

/* Page-hero title: prevent overflow on very small screens */
@media (max-width: 380px) {
  .page-hero__title {
    font-size: clamp(1.8rem, 9vw, 2.5rem);
    letter-spacing: -0.03em;
  }
  .section__title {
    font-size: clamp(1.5rem, 8vw, 2rem);
  }
}

/* CTA strip: stack buttons vertically on small screens */
@media (max-width: 480px) {
  .cta-strip .btn-row {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-strip .btn-row .btn {
    justify-content: center;
  }
}

/* Highlight cards: reduce padding on small screens */
@media (max-width: 480px) {
  .highlight-card {
    padding: var(--space-6);
  }
}

/* Footer: stack on very small screens */
@media (max-width: 400px) {
  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Language table: horizontal scroll on small screens */
@media (max-width: 480px) {
  .lang-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* Modals: full-width padding on mobile */
@media (max-width: 600px) {
  .skill-modal-content {
    width: 95%;
    height: auto;
    min-height: 50%;
    padding: var(--space-6);
  }
}

/* Formation cards on about page: stack on small screens */
@media (max-width: 480px) {
  .formation-cards {
    grid-template-columns: 1fr;
  }
}

/* Soft grid: ensure min size works on very narrow screens */
@media (max-width: 360px) {
  .soft-grid {
    grid-template-columns: 1fr;
  }
}