/* ===== Navigation ===== */
.nav {
  border-bottom: var(--border);
  background: var(--bg);
  position: relative;
  z-index: 100;
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--black);
}

.nav-logo:hover {
  color: var(--blue);
}

/* Mobile back link — hidden on desktop, shown on subpages at mobile */
.nav-back {
  display: none;
}

.nav-logo-img {
  height: 56px;
  max-height: 56px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 0.75rem;
  list-style: none;
}

.nav-links a {
  color: var(--text2);
  font-weight: 500;
  font-size: var(--small-size);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 1.5px solid transparent;
  border-radius: 999em;
  padding: 0.4rem 1.2rem;
  transition: all var(--transition);
}

.nav-links a:hover {
  color: var(--black);
  background: rgba(0,0,0,0.05);
  border-color: transparent;
}

.nav-links a.active {
  background: var(--black);
  color: var(--bg);
  font-weight: 600;
  border-color: var(--black);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--black);
  margin: 5px 0;
  transition: var(--transition);
}

/* ===== Page Header ===== */
.page-header {
  padding: 5rem 0 3rem;
  border-bottom: var(--border);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 6px;
  background: var(--page-accent, var(--black));
}

.page-header .geo-shapes {
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 12px;
  align-items: center;
  opacity: 0.15;
}

.page-header .geo-circle {
  width: 80px;
  height: 80px;
  border: 2px solid var(--page-accent, var(--black));
  border-radius: 50%;
  animation: float 8s ease-in-out infinite;
}

.page-header .geo-square {
  width: 50px;
  height: 50px;
  border: 2px solid var(--page-accent, var(--black));
  animation: float 8s ease-in-out infinite 1s;
}

.page-header .geo-dot {
  width: 20px;
  height: 20px;
  background: var(--page-accent, var(--black));
  border-radius: 50%;
  animation: float 8s ease-in-out infinite 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.page-header h1 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-header h1 .title-text {
  display: inline;
  background: linear-gradient(to top, rgba(var(--page-accent-rgb, 45,91,218), 0.2) 40%, transparent 40%);
  padding: 0 0.1em;
}

.page-header .dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}

.page-header p {
  margin-top: 0.75rem;
  color: var(--text2);
  max-width: 600px;
}

/* ===== Footer ===== */
.footer {
  border-top: var(--border);
  padding: 2rem 0;
  margin-top: 2rem;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-blocks {
  display: flex;
  gap: 6px;
}

.footer-blocks span {
  width: 32px;
  height: 32px;
}

.footer-blocks span:nth-child(1) {
  background: var(--blue);
}

.footer-blocks span:nth-child(2) {
  background: var(--red);
}

.footer-blocks span:nth-child(3) {
  background: var(--yellow);
  border-radius: 50%;
}

.footer-text {
  color: var(--text2);
  font-size: 0.85rem;
}

/* ===== Social Icons ===== */
.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: var(--text2);
  border: 1.5px solid #ddd;
  transition: all var(--transition);
}

.social-links a:hover {
  border-color: var(--black);
  color: var(--black);
}

.social-links svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

/* ===== Tags ===== */
.tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 500;
  background: rgba(0,0,0,0.04);
  color: var(--text2);
}

/* ===== Cards (pub/blog) ===== */
.card {
  background: var(--surface);
  padding: 1.5rem 1.75rem;
  border-left: 4px solid;
  transition: all var(--transition);
}

.card:hover {
  background: rgba(0,0,0,0.015);
}