/* ── Navigation ────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 2rem 0;
  pointer-events: none;
}

.nav-inner {
  pointer-events: auto;
}

/* Fade mask so content disappears as it scrolls under the nav */
.nav::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 160px;
  background: linear-gradient(to bottom, var(--bg) 30%, transparent);
  pointer-events: none;
  z-index: -1;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}

.nav.scrolled::before {
  opacity: 1;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 6rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo img {
  border-radius: 6px;
}

/* Inline nav links (desktop) */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4rem;
  list-style: none;
}

.nav-links a {
  font-size: 1.3rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-50);
  text-decoration: none;
  transition: color 0.4s var(--ease);
}

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

/* Hamburger (mobile only) */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 36px;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text);
  transition: all 0.65s var(--ease);
  transform-origin: center;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(3.75px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* Full-screen menu overlay */
.menu-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease);
}

.menu-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.menu-links {
  list-style: none;
  text-align: center;
}

.menu-links li {
  overflow: hidden;
}

.menu-links a {
  display: block;
  font-size: clamp(4rem, 8vw, 9rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  color: var(--text);
  text-decoration: none;
  padding: 0.5rem 0;
  transition: opacity 0.4s var(--ease);
}

.menu-links a:hover {
  opacity: 0.5;
}

@media (max-width: 1024px) {
  .nav-inner { padding: 0 4rem; }
}

@media (max-width: 768px) {
  .nav-inner { padding: 0 2.4rem; }
}

@media (max-width: 480px) {
  .nav-inner { padding: 0 1.6rem; }
}

/* ── Project Card ─────────────────────────────────────────────────── */
.project-item {
  display: block;
  text-decoration: none;
  color: var(--text);
  padding: 4rem 0;
  border-bottom: 1px solid var(--text-15);
  transition: opacity 0.5s var(--ease);
}

.project-item:first-child {
  border-top: 1px solid var(--text-15);
}

.project-item:hover {
  opacity: 0.6;
}

.project-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.2rem;
}

.project-name {
  font-size: clamp(2.8rem, 4vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.project-arrow {
  font-size: 2.4rem;
  color: var(--text-30);
  transition: color 0.4s var(--ease), transform 0.4s var(--ease);
  flex-shrink: 0;
}

.project-item:hover .project-arrow {
  color: var(--text);
  transform: translate(4px, -4px);
}

.project-desc {
  font-size: 1.6rem;
  color: var(--text-50);
  max-width: 60rem;
  line-height: 1.6;
}

.project-tags {
  display: flex;
  gap: 1.2rem;
  margin-top: 1.2rem;
}

.project-tag {
  font-size: 1.2rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-30);
}

/* ── Blog Card ────────────────────────────────────────────────────── */
.blog-item {
  display: block;
  text-decoration: none;
  color: var(--text);
  padding: 3rem 0;
  border-bottom: 1px solid var(--text-15);
  transition: opacity 0.5s var(--ease);
}

.blog-item:first-child {
  border-top: 1px solid var(--text-15);
}

.blog-item:hover {
  opacity: 0.6;
}

.blog-meta {
  display: flex;
  gap: 2rem;
  margin-bottom: 0.8rem;
}

.blog-title {
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 0.6rem;
}

.blog-excerpt {
  font-size: 1.6rem;
  color: var(--text-50);
  max-width: 60rem;
  line-height: 1.6;
}

/* ── Footer ───────────────────────────────────────────────────────── */
.footer {
  padding: 4rem 0;
}

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

.footer p {
  font-size: 1.3rem;
  color: var(--text-30);
}

.footer a {
  color: var(--text-50);
  transition: color 0.4s var(--ease);
}

.footer a:hover {
  color: var(--text);
}

@media (max-width: 768px) {
  .footer-inner {
    flex-direction: column;
    gap: 1.2rem;
    text-align: center;
  }
}