/* =========================================
   RESET & BASE
   ========================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:   #1a1a2e;
  --navy2:  #16213e;
  --accent: #0f6bff;
  --text:   #1a1a1a;
  --muted:  #666666;
  --border: #e0e0e0;
  --bg:     #ffffff;
  --bg2:    #f7f7f7;
  --max:    860px;
  --radius: 6px;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* =========================================
   LANGUAGE TOGGLE LOGIC
   ========================================= */
body.en  .it  { display: none; }
body.it  .en  { display: none; }

/* =========================================
   HEADER & NAV
   ========================================= */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--navy);
  color: #fff;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-name {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.3px;
  color: #fff;
  white-space: nowrap;
  text-decoration: none;
}
.header-name:hover { color: #fff; text-decoration: none; opacity: 0.85; }

nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

nav a {
  color: rgba(255,255,255,0.78);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}
nav a:hover { color: #fff; text-decoration: none; }

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 8px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 4px;
  overflow: hidden;
}

.lang-toggle button {
  background: transparent;
  border: none;
  color: rgba(255,255,255,0.6);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 9px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  letter-spacing: 0.5px;
}
.lang-toggle button.active {
  background: rgba(255,255,255,0.18);
  color: #fff;
}
.lang-toggle button:hover { color: #fff; }

/* =========================================
   LAYOUT
   ========================================= */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
section:last-of-type { border-bottom: none; }

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}

h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}

h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 2px;
}

/* =========================================
   HERO
   ========================================= */
#hero {
  background: var(--navy);
  color: #fff;
  padding: 80px 0 72px;
  border-bottom: none;
}

#hero .container { max-width: var(--max); }

.hero-location {
  font-size: 13px;
  color: rgba(255,255,255,0.55);
  margin-bottom: 16px;
  letter-spacing: 0.3px;
}

.hero-name {
  font-size: clamp(32px, 6vw, 52px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 14px;
  color: #fff;
}

.hero-title {
  font-size: 18px;
  font-weight: 400;
  color: rgba(255,255,255,0.80);
  margin-bottom: 28px;
  line-height: 1.4;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  border: 1px solid rgba(255,255,255,0.22);
  padding: 8px 16px;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
}
.hero-link:hover {
  background: rgba(255,255,255,0.1);
  color: #fff;
  text-decoration: none;
}

/* =========================================
   ABOUT
   ========================================= */
#about p {
  font-size: 16px;
  color: #333;
  max-width: 720px;
  margin-bottom: 12px;
}
#about p:last-child { margin-bottom: 0; }

/* =========================================
   EXPERIENCE
   ========================================= */
.exp-list { display: flex; flex-direction: column; gap: 40px; }

.exp-item { display: grid; grid-template-columns: 180px 1fr; gap: 24px; }

.exp-meta { padding-top: 2px; }

.exp-dates {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 4px;
  font-variant-numeric: tabular-nums;
}

.exp-company {
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
}

.exp-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.4px;
  padding: 2px 7px;
  border-radius: 3px;
  margin-top: 6px;
  background: #e8f0fe;
  color: var(--accent);
}

.exp-role { font-size: 17px; font-weight: 700; color: var(--navy); margin-bottom: 8px; }

.exp-body ul {
  padding-left: 18px;
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.exp-body li { font-size: 14px; color: #333; line-height: 1.55; }

.exp-body .highlight {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-top: 8px;
  display: block;
}

/* =========================================
   SKILLS
   ========================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.skill-group {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.skill-group-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.skill-tag {
  font-size: 12px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 3px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text);
}

.skill-tag.adv {
  border-color: #c7d9fd;
  background: #eef3ff;
  color: var(--navy);
}

/* =========================================
   CERTIFICATIONS
   ========================================= */
.cert-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.cert-item {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.cert-name { font-size: 14px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.cert-issuer { font-size: 12px; color: var(--muted); }
.cert-date { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* =========================================
   LANGUAGES
   ========================================= */
.lang-list {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.lang-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  min-width: 180px;
}

.lang-name { font-size: 14px; font-weight: 700; color: var(--navy); }
.lang-level { font-size: 12px; color: var(--muted); }

/* =========================================
   PROJECTS
   ========================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

.project-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.project-card:hover { border-color: #b3c8fd; }

.project-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.3;
  margin-bottom: 2px;
}

.project-desc {
  font-size: 13px;
  color: #444;
  line-height: 1.55;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 2px;
}

.project-tag {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 3px;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--muted);
}

/* =========================================
   CONTACT
   ========================================= */
#contact { background: var(--bg2); }

.contact-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.contact-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--navy);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 18px;
  transition: border-color 0.15s;
}
.contact-item:hover { border-color: var(--accent); text-decoration: none; }

/* =========================================
   FOOTER
   ========================================= */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.45);
  text-align: center;
  padding: 24px;
  font-size: 13px;
}

/* =========================================
   RESPONSIVE
   ========================================= */
@media (max-width: 680px) {
  .exp-item { grid-template-columns: 1fr; gap: 6px; }
  .exp-meta { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
  nav a { display: none; }
  .header-name { font-size: 14px; }

  #hero { padding: 40px 0 36px; }
  section { padding: 40px 0; }
  .hero-name { font-size: 36px; }
  .hero-title { font-size: 16px; }
  .exp-list { gap: 28px; }
  .skills-grid { grid-template-columns: 1fr; }
  .cert-list { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
}