/* =====================
   RESET & BASE
   ===================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Share Tech Mono', monospace;
}

:root {
  --green: #00FF00;
  --green-dim: #7FFF00;
  --green-dark: #00aa00;
  --green-glow: rgba(0,255,0,0.15);
  --bg: #000;
  --card-bg: rgba(0, 255, 0, 0.04);
  --border: rgba(0, 255, 0, 0.35);
  --text: #ccffcc;
  --radius: 8px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--green);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: var(--green);
  text-decoration: none;
  transition: color var(--transition);
}

.disabled {
  cursor: not-allowed;        /* cursore normale */
}

a:hover {
  color: var(--green-dim);
}

/* =====================
   SCROLLBAR
   ===================== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #000; }
::-webkit-scrollbar-thumb { background: var(--green-dark); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--green); }

/* =====================
   MATRIX CANVAS
   ===================== */
#matrix {
  position: absolute;
  top: 0;
  left: 0;
  /* width/height gestiti via JS con style.width/height */
  z-index: 0;
  opacity: 0.55;
  pointer-events: none;
  display: block;
  /* Evita scaling indesiderato su mobile */
  image-rendering: pixelated;
  max-width: 100%;
}

/* =====================
   LOADER
   ===================== */
#loader {
  position: fixed;
  inset: 0;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#loader.hidden {
  opacity: 0;
  visibility: hidden;
}

#loader-text {
  font-size: 1.4rem;
  color: var(--green);
  letter-spacing: 3px;
  animation: blink 0.8s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* =====================
   GLITCH EFFECT
   ===================== */
.glitch {
  position: relative;
  display: inline-block;
}

.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  overflow: hidden;
}

.glitch::before {
  color: #0ff;
  clip-path: polygon(0 0, 100% 0, 100% 40%, 0 40%);
  animation: glitch-top 3s infinite linear alternate-reverse;
}

.glitch::after {
  color: #f0f;
  clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%);
  animation: glitch-bottom 2s infinite linear alternate-reverse;
}

@keyframes glitch-top {
  0%, 95% { transform: none; opacity: 0; }
  96% { transform: translateX(-3px); opacity: 0.7; }
  98% { transform: translateX(3px); opacity: 0.7; }
  100% { transform: none; opacity: 0; }
}

@keyframes glitch-bottom {
  0%, 90% { transform: none; opacity: 0; }
  91% { transform: translateX(3px); opacity: 0.6; }
  94% { transform: translateX(-3px); opacity: 0.6; }
  100% { transform: none; opacity: 0; }
}

/* =====================
   HEADER
   ===================== */
header {
  padding: 5rem 2rem 3rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.header-inner {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

header h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  letter-spacing: 4px;
  text-shadow: 0 0 20px var(--green), 0 0 40px rgba(0,255,0,0.4);
}

.subtitle {
  font-size: 1.1rem;
  color: var(--green-dim);
  letter-spacing: 2px;
}

.header-tags {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.4rem;
}

/* =====================
   TAG (shared)
   ===================== */
.tag {
  background: var(--green-glow);
  border: 1px solid var(--border);
  color: var(--green-dim);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.78rem;
  letter-spacing: 1px;
}

/* =====================
   NAVBAR
   ===================== */
#navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}

#navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0,255,0,0.15);
}

.nav-inner {
  max-width: 1200px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 2rem;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* =====================
   LANGUAGE SWITCHER
   ===================== */
.lang-switcher {
  display: flex;
  gap: 0.3rem;
  align-items: center;
}

.lang-btn {
  background: none;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1.3rem;
  line-height: 1;
  padding: 0.15rem 0.25rem;
  opacity: 0.45;
  transition: opacity var(--transition), border-color var(--transition), transform var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--green);
}

.lang-btn:hover {
  opacity: 0.8;
  transform: scale(1.1);
}

.lang-btn.active {
  opacity: 1;
  border-color: var(--border);
  background: var(--green-glow);
}

.nav-logo {
  font-size: 1rem;
  color: var(--green-dim);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 0.2rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--green);
  border-bottom-color: var(--green);
}

/* hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.3rem;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--green);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 1rem 2rem;
  gap: 1rem;
  border-top: 1px solid var(--border);
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

/* =====================
   SECTIONS
   ===================== */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

section.visible {
  opacity: 1;
  transform: translateY(0);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.prompt {
  color: var(--green-dim);
  font-size: 1.4rem;
}

/* =====================
   ABOUT
   ===================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  color: var(--text);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.about-sub {
  color: var(--green-dim) !important;
  font-style: italic;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.4rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.stat-card:hover {
  box-shadow: 0 0 12px var(--green-glow);
  transform: translateX(4px);
}

.stat-num {
  font-size: 1.8rem;
  color: var(--green);
  min-width: 60px;
  text-align: center;
}

.stat-label {
  color: var(--green-dim);
  font-size: 0.88rem;
}

/* =====================
   SKILLS
   ===================== */
.skills-grid {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.skill-name {
  min-width: 140px;
  font-size: 0.9rem;
  color: var(--green-dim);
}

.skill-bar {
  flex: 1;
  height: 8px;
  background: rgba(0,255,0,0.1);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.skill-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--green-dark), var(--green));
  border-radius: 4px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px rgba(0,255,0,0.5);
}

section.visible .skill-fill {
  width: var(--w);
}

/* =====================
   PROJECTS
   ===================== */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 1.5rem;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 30px rgba(0,255,0,0.15);
  border-color: var(--green);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.project-icon {
  font-size: 1.4rem;
}

.project-status {
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  border: 1px solid var(--green);
  color: var(--green);
}

.project-card h3 {
  font-size: 1.2rem;
  letter-spacing: 1px;
}

.project-card p {
  font-size: 0.9rem;
  color: var(--text);
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.project-link {
  display: inline-block;
  margin-top: 0.4rem;
  font-size: 0.85rem;
  color: var(--green);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
  align-self: flex-start;
}

.project-link:hover {
  border-bottom-color: var(--green);
}

/* =====================
   CONTACT
   ===================== */
.contact-intro {
  color: var(--text);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 1rem 1.5rem;
  border-radius: var(--radius);
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
  min-width: 240px;
}

.contact-card:hover {
  box-shadow: 0 0 20px rgba(0,255,0,0.2);
  border-color: var(--green);
  transform: translateY(-3px);
}

.contact-icon {
  font-size: 1.5rem;
}

.contact-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--green);
}

.contact-value {
  font-size: 0.8rem;
  color: var(--green-dim);
  display: block;
  margin-top: 0.1rem;
}

.contact-card > div {
  display: flex;
  flex-direction: column;
}

/* =====================
   FOOTER
   ===================== */
footer {
  padding: 2.5rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--green-dim);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-sub {
  font-size: 0.75rem;
  opacity: 0.6;
}

/* =====================
   RESPONSIVE
   ===================== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .about-stats {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .stat-card {
    flex: 1;
    min-width: 130px;
  }

  .skill-name {
    min-width: 110px;
  }

  header {
    padding: 4rem 1rem 2rem;
  }

  main {
    padding: 0 1rem;
  }
}

@media (max-width: 480px) {
  .contact-card {
    min-width: 100%;
  }

  .projects {
    grid-template-columns: 1fr;
  }
}