/* ── Progress bar ── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, var(--c-green), var(--c-orange));
  z-index: 9999;
  transition: none;
}

/* ── 3D canvas + vignette ── */
.canvas-wrap {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(5, 6, 4, 0.65) 100%);
}

.fallback-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(36, 95, 30, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 30%, rgba(240, 122, 22, 0.04) 0%, transparent 50%),
    var(--c-bg-deep);
  pointer-events: none;
}

/* ── Main content layer ── */
.page-content {
  position: relative;
  z-index: 2;
}

/* ── Nav ── */
.site-nav {
  position: fixed;
  top: 3px;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1rem, 3vw, 2.5rem);
  background: rgba(5, 6, 4, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--c-border-green);
  transition: background var(--transition-base), border-color var(--transition-base);
}

.site-nav.scrolled {
  background: rgba(5, 6, 4, 0.94);
  border-bottom-color: var(--c-border-orange);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.nav-brand img {
  height: 175px;
  width: auto;
}

.nav-brand-text {
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: var(--fw-medium);
  color: var(--c-gray);
  line-height: 1.3;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 1.8rem);
}

.nav-links a {
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-gray);
  position: relative;
  padding-bottom: 2px;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--c-orange);
  transition: width var(--transition-base);
}

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

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--c-green);
  border-radius: var(--radius-sm);
  color: var(--c-green-light);
  transition: all var(--transition-base);
  flex-shrink: 0;
}

.nav-cta:hover {
  background: var(--c-green);
  color: var(--c-cream);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--c-cream);
  border-radius: 1px;
  transition: all var(--transition-base);
}

/* ── Section base ── */
.section {
  padding: var(--space-3xl) clamp(1rem, 4vw, 3rem);
  max-width: var(--content-max);
  margin: 0 auto;
}

.section--narrow {
  max-width: var(--content-narrow);
}

.section--wide {
  max-width: 1400px;
}

.section--full {
  max-width: none;
  padding-left: clamp(1rem, 4vw, 3rem);
  padding-right: clamp(1rem, 4vw, 3rem);
}

.section-label {
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--c-green-light);
  margin-bottom: var(--space-sm);
}

.section-title {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: var(--fs-body);
  color: var(--c-gray);
  max-width: 640px;
  line-height: 1.7;
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-xl);
  max-width: var(--content-max);
  margin: 0 auto;
  padding-left: clamp(1rem, 4vw, 3rem);
  padding-right: clamp(1rem, 4vw, 3rem);
}

.hero-badge {
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--c-gray);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.hero-badge::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--c-green);
  border-radius: 50%;
}

.hero-lema {
  font-family: var(--ff-display);
  font-size: clamp(1.1rem, 1.6vw, 1.4rem);
  font-style: italic;
  font-weight: var(--fw-medium);
  color: var(--c-orange);
  margin-bottom: var(--space-md);
  letter-spacing: 0.02em;
}

.hero h1 {
  font-size: var(--fs-hero);
  max-width: 900px;
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero-sub {
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  color: var(--c-gray);
  max-width: 700px;
  line-height: 1.8;
  margin-bottom: var(--space-xl);
}

.hero-ctas {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.hero-stats {
  display: flex;
  gap: var(--space-lg);
  flex-wrap: wrap;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--c-border-green);
}

.hero-stat {
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-gray);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.hero-stat::before {
  content: '';
  width: 6px;
  height: 6px;
  border: 1px solid var(--c-green-light);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.scroll-hint {
  margin-top: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-gray);
  opacity: 0.6;
}

.scroll-hint-line {
  width: 24px;
  height: 1px;
  background: var(--c-gray);
}

/* ── Manifiesto ── */
.manifiesto {
  text-align: center;
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
}

.manifiesto-quote {
  font-family: var(--ff-display);
  font-size: var(--fs-h2);
  font-weight: var(--fw-medium);
  font-style: italic;
  color: var(--c-cream);
  max-width: 800px;
  margin: 0 auto var(--space-xl);
  line-height: 1.35;
}

.manifiesto-quote em {
  color: var(--c-orange);
  font-style: italic;
}

.manifiesto-text {
  font-size: var(--fs-body);
  color: var(--c-gray);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.85;
}

/* ── Grid layouts ── */
.grid-lines {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.grid-projects {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-md);
}

.grid-team {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--space-md);
}

/* ── Split section ── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.split-visual {
  position: relative;
  height: 400px;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--c-surface-a);
  border: 1px solid var(--c-border-green);
}

.split-visual-pattern {
  position: absolute;
  inset: 0;
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  justify-content: center;
  gap: 12px;
  padding: var(--space-lg);
  opacity: 0.25;
}

.split-visual-pattern span {
  display: block;
  width: 20px;
  height: 20px;
  border: 1px solid var(--c-green-light);
  transform: rotate(45deg);
}

.split-visual-pattern span:nth-child(3n) {
  border-color: var(--c-orange);
  width: 16px;
  height: 16px;
}

.split-visual-pattern span:nth-child(5n) {
  border-color: var(--c-red);
  border-radius: 50%;
  transform: none;
}

/* ── Semillero ── */
.semillero-header {
  margin-bottom: var(--space-xl);
}

.semillero-blocks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

/* ── Publications ── */
.pub-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* ── Events ── */
.events-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* ── CTA final ── */
.cta-final {
  text-align: center;
  padding: var(--space-3xl) clamp(1rem, 4vw, 3rem);
  max-width: var(--content-narrow);
  margin: 0 auto;
}

.cta-final-title {
  font-family: var(--ff-display);
  font-size: var(--fs-h2);
  font-style: italic;
  font-weight: var(--fw-medium);
  margin-bottom: var(--space-md);
  line-height: 1.35;
}

.cta-final-sub {
  color: var(--c-gray);
  margin-bottom: var(--space-xl);
  line-height: 1.8;
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--c-border-green);
  padding: var(--space-xl) clamp(1rem, 4vw, 3rem) var(--space-lg);
  max-width: var(--content-max);
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand img {
  height: 44px;
  margin-bottom: var(--space-sm);
}

.footer-brand-name {
  font-family: var(--ff-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-semibold);
  color: var(--c-green-light);
  margin-bottom: var(--space-xs);
}

.footer-brand-info {
  font-size: var(--fs-small);
  color: var(--c-gray);
  line-height: 1.7;
}

.footer-nav-title {
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-green-light);
  margin-bottom: var(--space-sm);
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-nav-list a {
  font-size: var(--fs-small);
  color: var(--c-gray);
}

.footer-nav-list a:hover {
  color: var(--c-orange);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--c-border-green);
}

.footer-lema {
  font-family: var(--ff-mono);
  font-size: var(--fs-meta);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--c-gray);
}

.footer-credits {
  font-size: var(--fs-meta);
  color: var(--c-gray);
  opacity: 0.6;
}

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  padding: var(--space-sm) var(--space-md);
  background: var(--c-surface-a);
  border: 1px solid var(--c-border-green);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-family: var(--ff-mono);
  font-size: var(--fs-small);
  color: var(--c-cream);
  z-index: 9000;
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-slow), opacity var(--transition-slow);
}

.toast.visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

/* ── Mobile nav overlay ── */
.nav-mobile-overlay {
  display: none;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-mobile-overlay {
    position: fixed;
    inset: 0;
    z-index: 99;
    background: rgba(5, 6, 4, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
  }

  .nav-mobile-overlay.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-mobile-overlay a {
    font-family: var(--ff-display);
    font-size: var(--fs-h2);
    color: var(--c-cream);
  }

  .nav-mobile-overlay a:hover {
    color: var(--c-orange);
  }

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

  .split-visual {
    height: 260px;
  }

  .semillero-blocks {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

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

  .hero h1 {
    font-size: clamp(2rem, 6vw, 3rem);
  }

  .hero-stats {
    gap: var(--space-sm);
  }
}

@media (max-width: 500px) {
  :root {
    --nav-height: 60px;
  }

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

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

  .hero-ctas {
    flex-direction: column;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .toast {
    left: var(--space-sm);
    right: var(--space-sm);
    bottom: var(--space-sm);
  }
}