/* ===== RESET ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: auto; overflow-x: hidden; }

/* ===== CSS VARIABLES ===== */
:root {
  --bg-primary:    #F0EEEB;
  --bg-secondary:  #E8E5E1;
  --bg-tertiary:   #DDDAD5;
  --bg-white:      #FFFFFF;
  --bg-glass:      rgba(255,255,255,0.72);

  --text-primary:  #1B2030;
  --text-secondary:#4A4D5A;
  --text-muted:    #8A8D96;

  --accent:        #3A6B4A;
  --accent-dim:    #2A4D36;
  --accent-glow:   rgba(58,107,74,0.10);

  --viz-cool:      #1A7832;
  --viz-mid:       #B4D232;
  --viz-warm:      #F0C828;
  --viz-hot:       #C83C1E;
  --viz-green:     #1A9850;

  --border:        rgba(27,32,48,0.08);
  --border-accent: rgba(58,107,74,0.25);

  --text-hero:    clamp(3.2rem, 8vw, 7.5rem);
  --text-display: clamp(2.2rem, 5vw, 4rem);
  --text-heading: clamp(1.4rem, 3vw, 2rem);
  --text-body:    1rem;
  --text-stat:    clamp(2.2rem, 4vw, 3.5rem);
  --text-label:   0.7rem;

  /* Dark panel (used by software page) */
  --dark-bg:       #191C1E;
  --dark-surface:  #1F2427;
  --dark-border:   rgba(242,237,230,0.06);
  --dark-text:     #F2EDE6;
  --dark-muted:    #7A7D82;
}

/* ===== BASE ===== */
body {
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  font-size: var(--text-body);
  line-height: 1.8;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.label {
  font-family: 'JetBrains Mono', monospace;
  font-size: var(--text-label);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
}

.section-pad {
  padding: clamp(4rem, 10vh, 8rem) clamp(1.5rem, 6vw, 8rem);
}

.section-label {
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: var(--text-display);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ===== FOCUS VISIBLE ===== */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== SKIP LINK ===== */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 99999;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #fff;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.875rem;
  border-radius: 0 0 6px 6px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

/* ===== GLASS PANEL ===== */
.glass-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}
.glass-panel:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(27,32,48,0.06);
}

/* ===== HEAT BLOBS ===== */
.heat-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  will-change: transform;
  background: radial-gradient(circle, rgba(58,107,74,0.3) 0%, rgba(58,107,74,0.1) 40%, rgba(240,238,235,0) 70%);
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 10002;
  padding: 0 clamp(1.5rem, 4vw, 4rem);
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  transition: background 0.4s ease, backdrop-filter 0.4s ease, border-color 0.4s ease;
  border-bottom: 1px solid transparent;
}

.nav.scrolled {
  background: rgba(240,238,235,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.nav-logo-img {
  height: 60px;
  width: auto;
}

.nav-logo-text {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: 1.65rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-link {
  font-family: 'DM Sans', sans-serif;
  font-weight: 400;
  font-size: 0.875rem;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
  transition: color 0.3s ease;
  position: relative;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-menu--mobile { display: none; }

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-link:hover { color: var(--text-primary); }
.nav-link:hover::after { width: 100%; }

.nav-link--active { color: var(--text-primary); font-weight: 500; }
.nav-link--active::after { width: 100%; }

.nav-cta {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  padding: 0.55rem 1.5rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--accent);
  background: transparent;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease, transform 0.2s ease;
}

.nav-cta:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 768px) {
  .nav-toggle { display: flex; position: relative; z-index: 10001; }
  .nav-menu--desktop { display: none !important; }
  .nav-brand { display: none; }
  .nav-menu--mobile {
    display: flex !important;
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: #f0eeeb;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
  }
  .nav-menu--mobile.open { opacity: 1; pointer-events: all; }
  .nav-menu--mobile .nav-links { flex-direction: column; gap: 2rem; align-items: center; text-align: center; padding: 0; }
  .nav-menu--mobile .nav-link { font-size: 1.3rem; color: var(--text-primary); }
  .nav-menu--mobile .nav-cta { font-size: 1rem; padding: 0.75rem 2.5rem; }
  .nav-mobile-logo { height: 60px; width: auto; margin-bottom: 1rem; }
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.75rem 2rem;
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  letter-spacing: 0.02em;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(58,107,74,0.2);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.75rem 2rem;
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--text-primary);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
  letter-spacing: 0.02em;
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

@keyframes shimmer2 {
  0%   { background-position: 0% 0%; }
  100% { background-position: -200% 0%; }
}

.btn-shimmer {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  height: 2.75rem;
  padding: 0 1.5rem;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 6px;
  background: linear-gradient(110deg, var(--bg-primary) 35%, #e8e5df 50%, var(--bg-primary) 65%);
  background-size: 200% 100%;
  animation: shimmer2 2.4s linear infinite;
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease;
  text-decoration: none;
}

.btn-shimmer:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-shimmer svg {
  transition: transform 0.25s ease;
}

.btn-shimmer:hover svg {
  transform: translateX(3px);
}

/* ===== HERO ENTER — hidden until JS animates ===== */
[data-hero-enter] {
  visibility: hidden;
}

[data-reveal] {
  visibility: hidden;
}

/* ===== PAGE TRANSITION OVERLAY ===== */
.page-transition-overlay {
  position: fixed;
  inset: 0;
  z-index: 99998;
  background: var(--bg-primary);
  pointer-events: none;
  opacity: 1;
  transition: opacity 0.3s ease-out;
}

.page-transition-overlay.entered {
  opacity: 0;
}

.page-transition-overlay.exiting {
  opacity: 1;
  transition: opacity 0.2s ease-in;
}

/* ===== FOOTER ===== */
.footer {
  padding: 2rem clamp(1.5rem, 6vw, 8rem);
  background: var(--bg-secondary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .footer {
    flex-direction: column;
    text-align: center;
    gap: 0.5rem;
  }
  .section-title {
    font-size: clamp(1.6rem, 6vw, 2.2rem);
  }
}

@media (max-width: 480px) {
  .nav {
    padding: 0 1rem;
  }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

/* ===== PARTNER HOVER (replaces inline onmouseover) ===== */
.partner-card {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  text-decoration: none;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.partner-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.partner-card img {
  max-height: 60px;
  width: auto;
  filter: grayscale(0.3);
  transition: filter 0.3s ease;
}

.partner-card:hover img {
  filter: grayscale(0);
}

/* ===== CANVAS CONTAINMENT ===== */
.dotted-surface,
.sw-flow-field {
  contain: strict;
}

.about-globe {
  contain: layout paint;
}

.dotted-surface canvas,
.about-globe canvas,
.sw-flow-field canvas {
  pointer-events: none;
}