/* NAV */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 0.5px solid var(--border);
  padding: 0 2rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--gold);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 0;
  align-items: center;
  list-style: none;
}

.nav-links a {
  color: var(--text3);
  text-decoration: none;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0 14px;
  transition: color 0.2s;
}

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

.nav-links a.active {
  color: var(--gold);
}

.nav-links .nav-iari {
  color: var(--gold-dim);
  border: 0.5px solid var(--border);
  border-radius: 3px;
  padding: 5px 12px;
  margin-left: 8px;
  font-size: 11px;
}

.nav-links .nav-iari:hover {
  color: var(--gold);
  border-color: var(--gold-dim);
}

/* HAMBURGER */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--gold-dim);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* MOBILE MENU */
.nav-mobile {
  display: none;
  position: fixed;
  top: 56px;
  left: 0; right: 0;
  height: auto;
  z-index: 99;
  background: var(--nav-mobile-bg);
  backdrop-filter: blur(12px);
  border-bottom: 0.5px solid var(--border);
  padding: 16px 0;
  flex-direction: column;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  color: var(--text3);
  text-decoration: none;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 14px 2rem;
  border-bottom: 0.5px solid var(--border2);
  transition: color 0.2s;
}

.nav-mobile a:last-child {
  border-bottom: none;
}

.nav-mobile a:hover,
.nav-mobile a.active {
  color: var(--gold);
}

.nav-mobile .nav-iari {
  color: var(--gold-dim);
}

.nav-mobile .nav-mobile-top {
  color: var(--text3);
}

/* MAIN */
main {
  padding-top: 56px;
}

/* SECTIONS */
section {
  max-width: 900px;
  margin: 0 auto;
  padding: 72px 2rem;
}

section + section {
  border-top: 0.5px solid var(--border2);
}

.section-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-dim);
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 20px;
  line-height: 1.3;
}

.section-body {
  color: var(--text2);
  font-size: 14px;
  line-height: 1.8;
}

/* FOOTER */
footer {
  border-top: 0.5px solid var(--border2);
  padding: 32px 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--gold-dim);
}

.footer-sources {
  font-size: 11px;
  color: var(--text3);
  font-family: var(--font-mono);
  text-align: right;
  line-height: 1.8;
}

/* NAV CONTROLS GROUP */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* LANG TOGGLE */
.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 24px;
  padding: 0 8px;
  border-radius: 3px;
  border: 0.5px solid var(--border);
  background: transparent;
  cursor: pointer;
  color: var(--text3);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.08em;
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.lang-toggle:hover {
  background: var(--bg3);
  border-color: var(--gold-dim);
  color: var(--gold);
}

/* THEME TOGGLE */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 0.5px solid var(--border);
  background: transparent;
  cursor: pointer;
  color: var(--text3);
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.theme-toggle:hover {
  background: var(--bg3);
  border-color: var(--gold-dim);
  color: var(--gold);
}

.theme-toggle svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
}

.icon-moon { display: none; }
.icon-sun  { display: block; }

[data-theme="light"] .icon-moon { display: block; }
[data-theme="light"] .icon-sun  { display: none; }

/* RESPONSIVE */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  footer { flex-direction: column; gap: 12px; text-align: center; }
  .footer-sources { text-align: center; }
}