/* ─── Design tokens ─────────────────────────────────────────── */
:root {
  --dark:   #161910;   /* quasi-nero caldo, base scura */
  --forest: #1E3018;   /* verde bosco scuro, sezioni secondarie */
  --terra:  #8B3A1F;   /* mattone/rosso mattone, accento principale */
  --sand:   #C8B898;   /* sabbia, testo secondario */
  --cream:  #F0E4CC;   /* crema caldo, testo principale su scuro */
  --gold:   #B89A60;   /* oro caldo, dettagli */
  --white:  #FFFFFF;
  --font:   'Space Grotesk', system-ui, sans-serif;
  --nav-h:  64px;
}

/* ─── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--dark); color: var(--cream); }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ─── NAV ────────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  z-index: 100;
  transition: background 0.35s, box-shadow 0.35s;
}

#navbar.scrolled {
  background: rgba(22, 25, 16, 0.97);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 0 rgba(200,184,152,0.08);
}

.nav-logo img {
  height: 36px;
  width: 36px;
  object-fit: contain;
  border-radius: 50%;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(240,228,204,0.55);
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--cream); }

.nav-cta {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cream);
  border: 1px solid rgba(240,228,204,0.35);
  padding: 0.5rem 1.2rem;
  transition: background 0.2s, border-color 0.2s;
}

.nav-cta:hover {
  background: var(--terra);
  border-color: var(--terra);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px; height: 16px;
  background: none; border: none;
  cursor: pointer; padding: 0;
}

.nav-hamburger span {
  display: block;
  height: 2px;
  background: var(--cream);
  border-radius: 2px;
}

/* ─── HERO ───────────────────────────────────────────────────── */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 30% center;
  filter: brightness(.45) saturate(.75);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(22,25,16,0.65) 0%,
    rgba(22,25,16,0.05) 55%,
    rgba(139,58,31,0.15) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 5rem 3rem;
}

.hero-eyebrow {
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--terra);
  font-weight: 500;
  margin-bottom: 1rem;
}

.hero-title {
  font-size: clamp(4rem, 8vw, 8.5rem);
  font-weight: 300;
  line-height: 0.93;
  letter-spacing: -0.03em;
  color: var(--cream);
}

.hero-title strong {
  display: block;
  font-weight: 700;
  color: var(--white);
}

.hero-desc {
  margin-top: 2rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--sand);
  max-width: 420px;
}

/* ─── STRIP ──────────────────────────────────────────────────── */
.strip {
  display: flex;
  border-top: 1px solid rgba(200,184,152,0.1);
  border-bottom: 1px solid rgba(200,184,152,0.1);
  background: var(--dark);
}

.strip-item {
  flex: 1;
  padding: 1.5rem 2rem;
  border-right: 1px solid rgba(200,184,152,0.1);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.strip-item:last-child { border-right: none; }

.strip-label {
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(200,184,152,0.4);
}

.strip-val {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--cream);
}

/* ─── SECTION BASE ───────────────────────────────────────────── */
.section { position: relative; }

.section-dark  { background: var(--dark); }
.section-forest { background: var(--forest); }
.section-terra  { background: var(--terra); }

.section-inner {
  padding: 6rem 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* ─── EYEBROW ────────────────────────────────────────────────── */
.eyebrow {
  font-size: 0.82rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--terra);
  font-weight: 500;
  margin-bottom: 1.8rem;
}

.section-forest .eyebrow,
.section-terra .eyebrow { color: var(--gold); }

/* ─── HEADINGS ───────────────────────────────────────────────── */
h2 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--cream);
  margin-bottom: 1.8rem;
}

h2 strong { font-weight: 700; color: var(--white); }
h2 em { font-style: normal; color: var(--terra); }

.section-h2-large {
  font-size: clamp(2.8rem, 5.5vw, 5rem);
  margin-bottom: 2.5rem;
}

p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--sand);
  margin-bottom: 1rem;
}

p em { font-style: normal; color: var(--cream); font-weight: 500; }
p strong { color: var(--cream); font-weight: 600; }

/* ─── TWO-COL layouts ────────────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.col-image { overflow: hidden; }
.col-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  max-height: 520px;
}

.two-col-text {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

/* ─── SPLIT SECTIONS ─────────────────────────────────────────── */
.section-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 70vh;
}

.section-split-alt .split-image { order: 2; }
.section-split-alt .split-text  { order: 1; }

.split-image { overflow: hidden; }
.split-image img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}

.split-text {
  padding: 5rem 4rem 5rem 3.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* ─── BIO LIST ───────────────────────────────────────────────── */
.bio-list {
  margin: 0.5rem 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.bio-list li {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--sand);
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(200,184,152,0.12);
  padding-left: 1rem;
  position: relative;
}

.bio-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--terra);
  font-weight: 700;
}

.highlight-text {
  margin-top: 0.5rem;
  padding: 1.25rem 1.5rem;
  border-left: 2px solid var(--terra);
  background: rgba(139,58,31,0.08);
  font-size: 0.9rem !important;
}

/* ─── FEATURE LIST ───────────────────────────────────────────── */
.label-text {
  font-size: 0.72rem !important;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(200,184,152,0.5) !important;
  font-weight: 500;
  margin-bottom: 0.5rem !important;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 1.5rem;
}

.feature-list li {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--sand);
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(200,184,152,0.1);
}

.feature-list li:last-child { border-bottom: none; }
.feature-list li strong { color: var(--cream); }

blockquote {
  padding: 1rem 1.25rem;
  border-left: 2px solid var(--terra);
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--cream);
  opacity: 0.8;
}

/* ─── GOWILD SECTION ─────────────────────────────────────────── */
.section-gowild {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.gowild-bg {
  position: absolute;
  inset: 0;
}

.gowild-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: brightness(.48) saturate(.75);
}

.gowild-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(22,25,16,0.92) 0%,
    rgba(22,25,16,0.55) 55%,
    rgba(22,25,16,0.2) 100%
  );
}

.gowild-content {
  position: relative;
  z-index: 1;
  padding: 6rem 3rem;
  max-width: 620px;
}

.gowild-logo {
  height: 48px;
  width: auto;
  margin-bottom: 2rem;
  object-fit: contain;
}

.gowild-tagline {
  font-size: 1rem;
  color: var(--sand);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.gowild-content h2 {
  font-size: clamp(1.8rem, 2.5vw, 2.4rem);
  margin-bottom: 1rem;
}

.gowild-list {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.gowild-list li {
  font-size: 0.9rem;
  color: var(--sand);
  padding: 0.6rem 0 0.6rem 1.2rem;
  border-bottom: 1px solid rgba(200,184,152,0.1);
  position: relative;
}

.gowild-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--terra);
}

/* ─── MANIFESTO ──────────────────────────────────────────────── */
.manifesto-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  max-width: 760px;
  margin-bottom: 4rem;
}

.manifesto-title em { color: var(--gold); font-style: italic; }

.manifesto-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-top: 1px solid rgba(200,184,152,0.12);
}

.manifesto-block {
  padding: 2.5rem 2.5rem 2.5rem 0;
  border-bottom: 1px solid rgba(200,184,152,0.12);
  border-right: 1px solid rgba(200,184,152,0.12);
}

.manifesto-block:nth-child(even) {
  padding-left: 2.5rem;
  padding-right: 0;
  border-right: none;
}

.manifesto-block h3 {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--cream);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.manifesto-block p {
  font-size: 0.88rem;
  color: rgba(200,184,152,0.7);
}

/* ─── CONTATTI ───────────────────────────────────────────────── */
.section-split-contacts {
  min-height: 65vh;
}

.section-terra .eyebrow { color: rgba(240,228,204,0.5); }
.section-terra h2       { color: var(--white); }
.section-terra p        { color: rgba(240,228,204,0.75); }

.contact-list {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid rgba(240,228,204,0.12);
  font-size: 0.9rem;
  color: rgba(240,228,204,0.85);
}

.contact-icon {
  width: 1.4rem;
  height: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  opacity: 0.6;
}

.contact-icon svg {
  width: 1.1rem;
  height: 1.1rem;
}

/* ResearchGate: testo "RG" stilizzato */
.contact-icon-rg {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: rgba(240,228,204,0.6);
  font-family: var(--font);
}

.contact-list a {
  color: rgba(240,228,204,0.85);
  transition: color 0.2s;
}

.contact-list a:hover { color: var(--white); }

/* ─── FOOTER ─────────────────────────────────────────────────── */
footer {
  background: #0D0F09;
  color: rgba(200,184,152,0.3);
  text-align: center;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 1.5rem;
}

footer span { color: var(--terra); }

/* ─── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 960px) {
  .two-col,
  .two-col-text,
  .section-split,
  .manifesto-grid {
    grid-template-columns: 1fr;
  }

  .section-split-alt .split-image { order: 1; }
  .section-split-alt .split-text  { order: 2; }

  .split-image { height: 55vw; min-height: 280px; }
  .split-text  { padding: 3.5rem 2rem; }

  .col-image   { height: 55vw; min-height: 260px; }

  .manifesto-block,
  .manifesto-block:nth-child(even) {
    padding: 2rem 0;
    border-right: none;
    padding-left: 0;
  }

  .strip { flex-wrap: wrap; }
  .strip-item { flex: 1 1 50%; border-bottom: 1px solid rgba(200,184,152,0.1); }
}

@media (max-width: 600px) {
  #navbar { padding: 0 1.25rem; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }

  #navbar.mobile-open .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    background: rgba(22,25,16,0.98);
    padding: 1.5rem 1.25rem 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid rgba(200,184,152,0.08);
  }

  #navbar.mobile-open .nav-links a {
    font-size: 1rem;
    color: var(--cream);
  }

  #navbar.mobile-open .nav-cta {
    display: block;
    text-align: center;
    margin-top: 0.5rem;
  }

  .hero-title  { font-size: 3.5rem; }
  .hero-content { padding: 3rem 1.5rem; }

  .section-inner { padding: 4rem 1.5rem; }
  .split-text    { padding: 2.5rem 1.5rem; }

  .gowild-content { padding: 4rem 1.5rem; }

  .strip-item { flex: 1 1 100%; }
}