/* ============================================================
   NAVIGATION
============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0;
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 44px;
  border-radius: 100px;
  border: 1px solid transparent;
  background: transparent;
  box-shadow: none;
  transition: margin 0.4s var(--ease-out), padding 0.4s var(--ease-out),
    width 0.4s var(--ease-out), max-width 0.4s var(--ease-out),
    background 0.4s var(--ease-out), border-color 0.4s var(--ease-out),
    box-shadow 0.4s var(--ease-out);
}

/* Floating capsule nav once scrolled */
.nav.scrolled .nav__inner {
  margin: 12px auto 0;
  width: calc(100% - 32px);
  max-width: 980px;
  padding: 12px 20px 12px 24px;
  background: rgba(12,12,15,0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-color: rgba(255,255,255,0.14);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.06);
}
/* Muted gray links get lost against whatever's scrolling behind the
   translucent capsule — brighten them once it's up */
.nav.scrolled .nav__link {
  color: var(--text);
}
.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  transition: color 0.2s;
}
.nav__logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.nav__logo span { color: var(--purple); }
.nav__logo:hover { color: var(--purple-light); }

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}
.nav__link:hover { color: var(--text); background: rgba(255,255,255,0.06); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 18px;
  background: var(--purple);
  color: #fff;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  transition: all 0.25s var(--ease-out);
  box-shadow: 0 2px 16px rgba(var(--purple-rgb), 0.3);
}
.nav__cta:hover {
  background: var(--purple-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 24px rgba(var(--purple-rgb), 0.4);
}

/* Right-side group: toggle + burger */
.nav__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Burger */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}
.nav__burger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile menu */
.nav__mobile {
  display: none;
  flex-direction: column;
  padding: 16px 32px 24px;
  border-top: 1px solid var(--border);
  background: rgba(9,9,11,0.95);
  backdrop-filter: blur(20px);
}
.nav__mobile.open { display: flex; }
.nav__mobile ul { display: flex; flex-direction: column; gap: 4px; }
.nav__mobile .nav__link { font-size: 16px; padding: 12px 16px; }
.nav__mobile .nav__cta { margin-top: 12px; text-align: center; justify-content: center; }

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  color: var(--text-muted);
  flex-shrink: 0;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--border-glow);
  background: rgba(255,255,255,0.05);
}
[data-theme="light"] .theme-toggle:hover {
  background: rgba(0,0,0,0.04);
}

/* Icon visibility: moon shown in dark mode, sun in light mode */
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; color: var(--purple-light); }
[data-theme="light"] .theme-toggle .icon-sun  { display: block; color: #F59E0B; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }