*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #000;
  --fg: #fff;
  --muted: #aaaaaa;
  --header-height: 46px;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Header ── */

header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: #000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 20;
}

.site-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #fff;
}

.site-title img {
  transform: translateY(-4px);
}

/* Right-side header cluster: Observatory Press link + nav */
.header-right {
  display: flex;
  align-items: center;
  gap: 36px;
}

.obs-link {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.18s ease;
}

.obs-link:hover {
  color: var(--fg);
}

nav {
  display: flex;
  gap: 28px;
}

nav a {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
  transition: color 0.18s ease;
}

nav a:hover,
nav a.active {
  color: #fff;
}

/* ── Inner pages (about, projects) ── */

.page {
  max-width: 580px;
  margin: 0 auto;
  padding: calc(var(--header-height) + 72px) 28px 100px;
}

.page-label {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 48px;
  display: block;
}

.page p {
  font-size: 15px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 22px;
}

/* ── Projects ── */

.projects-list {
  list-style: none;
  display: flex;
  flex-direction: column;
}

.project-item {
  padding: 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.project-item:last-child {
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.project-year {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
  display: block;
}

.project-title {
  font-size: 15px;
  font-weight: 400;
  color: var(--fg);
  margin-bottom: 10px;
}

.project-desc {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 0;
}