/* ============================================================
   Lockerbie — Pan Am Flight 103 Memorial
   Aesthetic: "The Winter Night" — a reverent editorial memorial.
   Deep slate evoking the night sky over Lockerbie, 21 Dec 1988.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300..600;1,9..144,300..500&family=Spectral:ital,wght@0,300;0,400;0,500;1,300;1,400&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root {
  --night:        #0b0e14;   /* deepest sky */
  --night-2:      #10141d;   /* panel */
  --night-3:      #161b26;   /* raised */
  --heather:      #2a3350;   /* muted twilight blue */
  --mist:         #8b93a7;   /* muted text */
  --snow:         #ece7db;   /* warm off-white, primary text */
  --snow-dim:     #c9c3b5;
  --candle:       #e6a94b;   /* single warm remembrance accent */
  --candle-soft:  #f2c987;
  --rule:         rgba(236, 231, 219, 0.12);
  --rule-soft:    rgba(236, 231, 219, 0.06);

  --serif-display: 'Fraunces', Georgia, serif;
  --serif-body:    'Spectral', Georgia, serif;
  --mono:          'IBM Plex Mono', ui-monospace, monospace;

  --measure: 68ch;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--night);
  color: var(--snow);
  font-family: var(--serif-body);
  font-weight: 400;
  font-size: 1.06rem;
  line-height: 1.72;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* Faint starfield / snow atmosphere on the deep sky */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1px 1px at 20% 30%, rgba(236,231,219,0.5), transparent),
    radial-gradient(1px 1px at 70% 20%, rgba(236,231,219,0.35), transparent),
    radial-gradient(1px 1px at 40% 70%, rgba(236,231,219,0.3), transparent),
    radial-gradient(1px 1px at 85% 60%, rgba(236,231,219,0.4), transparent),
    radial-gradient(1px 1px at 55% 85%, rgba(236,231,219,0.25), transparent),
    radial-gradient(1px 1px at 10% 80%, rgba(236,231,219,0.3), transparent),
    radial-gradient(1200px 700px at 78% -8%, rgba(42,51,80,0.55), transparent 60%),
    radial-gradient(900px 600px at 12% 108%, rgba(42,51,80,0.35), transparent 60%);
  opacity: 0.9;
}

/* subtle grain */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection { background: var(--candle); color: var(--night); }

a { color: var(--candle-soft); text-decoration: none; }
a:hover { color: var(--candle); }

img { max-width: 100%; display: block; }

/* ---------- Layout ---------- */
.wrap { width: min(100% - 3rem, 1120px); margin-inline: auto; }
.measure { max-width: var(--measure); }

section { padding-block: clamp(3.5rem, 8vw, 7rem); }

/* ---------- Site header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: linear-gradient(to bottom, rgba(11,14,20,0.92), rgba(11,14,20,0.72));
  border-bottom: 1px solid var(--rule-soft);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 0.9rem;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  color: var(--snow);
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: 1.12rem;
  letter-spacing: 0.02em;
}
.brand .flight {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--candle);
  padding-left: 0.7rem;
  border-left: 1px solid var(--rule);
}
.nav {
  display: flex;
  gap: 1.6rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.nav a {
  color: var(--mist);
  position: relative;
  padding-block: 0.35rem;
  transition: color 0.3s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--candle);
  transition: width 0.35s var(--ease);
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--snow); }
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 100%; }

.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: 8rem 5rem;
}
.hero .eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--candle);
  margin-bottom: 1.8rem;
}
.hero h1 {
  font-family: var(--serif-display);
  font-optical-sizing: auto;
  font-weight: 340;
  font-size: clamp(2.7rem, 8vw, 6.2rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0 0 1.6rem;
  max-width: 16ch;
}
.hero h1 em {
  font-style: italic;
  color: var(--candle-soft);
  font-weight: 300;
}
.hero .lede {
  max-width: 54ch;
  font-size: clamp(1.05rem, 2.2vw, 1.28rem);
  color: var(--snow-dim);
  font-weight: 300;
}
.hero .datestamp {
  margin-top: 2.6rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--mist);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.6rem;
}
.hero .datestamp span { color: var(--snow); }

/* ---------- The 270 motif ---------- */
.toll {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(1.5rem, 5vw, 4rem);
  align-items: center;
  border-block: 1px solid var(--rule);
  padding-block: clamp(2.5rem, 6vw, 4.5rem);
}
.toll .figure {
  font-family: var(--serif-display);
  font-weight: 300;
  font-size: clamp(5rem, 18vw, 12rem);
  line-height: 0.86;
  letter-spacing: -0.04em;
  color: var(--snow);
}
.toll .figure small {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--candle);
  margin-top: 1rem;
}
.toll .figure-note { color: var(--snow-dim); font-weight: 300; max-width: 44ch; }

/* ---------- Section headings ---------- */
.section-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--candle);
  margin-bottom: 1.4rem;
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.section-label::before {
  content: "";
  width: 2.2rem; height: 1px;
  background: var(--candle);
  opacity: 0.6;
}
h2.display {
  font-family: var(--serif-display);
  font-weight: 340;
  font-size: clamp(1.9rem, 5vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 0 0 1.4rem;
}
h3 {
  font-family: var(--serif-display);
  font-weight: 400;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 2.4rem 0 0.8rem;
}
p { margin: 0 0 1.2rem; }
.page-body p { max-width: var(--measure); }
.lead { font-size: 1.2rem; color: var(--snow-dim); font-weight: 300; }

/* pull quote */
.pullquote {
  font-family: var(--serif-display);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(1.4rem, 4vw, 2.1rem);
  line-height: 1.3;
  color: var(--candle-soft);
  border-left: 2px solid var(--candle);
  padding-left: clamp(1.2rem, 3vw, 2.2rem);
  margin: 2.8rem 0;
  max-width: 40ch;
}
.pullquote cite {
  display: block;
  font-family: var(--mono);
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
  margin-top: 1rem;
}

/* ---------- Page hero (interior pages) ---------- */
.page-hero {
  padding-block: clamp(6rem, 12vw, 9rem) clamp(2rem, 5vw, 3.5rem);
  border-bottom: 1px solid var(--rule-soft);
}
.page-hero h1 {
  font-family: var(--serif-display);
  font-weight: 330;
  font-size: clamp(2.4rem, 7vw, 5rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  margin: 0.6rem 0 1.2rem;
}
.page-hero .lede { max-width: 52ch; color: var(--snow-dim); font-size: 1.2rem; font-weight: 300; }

/* ---------- Fact grid ---------- */
.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  margin: 2.5rem 0;
}
.facts .fact {
  background: var(--night);
  padding: 1.6rem 1.5rem;
}
.facts .fact dt {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--candle);
  margin-bottom: 0.6rem;
}
.facts .fact dd {
  margin: 0;
  font-family: var(--serif-display);
  font-size: 1.5rem;
  font-weight: 350;
  line-height: 1.15;
}
.facts .fact dd small { display:block; font-family: var(--serif-body); font-size: 0.86rem; color: var(--mist); margin-top: 0.3rem; }

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  margin: 2.5rem 0;
  padding-left: 2rem;
  border-left: 1px solid var(--rule);
}
.timeline .event { position: relative; padding: 0 0 2.8rem 1.6rem; }
.timeline .event::before {
  content: "";
  position: absolute;
  left: calc(-2rem - 0.3rem - 1px);
  top: 0.55rem;
  width: 0.62rem; height: 0.62rem;
  border-radius: 50%;
  background: var(--night);
  border: 1px solid var(--candle);
}
.timeline .event.pivot::before { background: var(--candle); box-shadow: 0 0 0 4px rgba(230,169,75,0.15); }
.timeline .time {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--candle);
  text-transform: uppercase;
}
.timeline .event h3 { margin: 0.3rem 0 0.5rem; font-size: 1.3rem; }
.timeline .event p { margin: 0; color: var(--snow-dim); font-weight: 300; max-width: 60ch; }

/* ---------- Card grid (nav to sections) ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.4rem;
  margin: 2.5rem 0;
}
.card {
  display: block;
  padding: 1.9rem 1.7rem 1.6rem;
  background: var(--night-2);
  border: 1px solid var(--rule-soft);
  color: var(--snow);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease), background 0.4s var(--ease);
}
.card:hover {
  border-color: rgba(230,169,75,0.5);
  transform: translateY(-3px);
  background: var(--night-3);
  color: var(--snow);
}
.card .idx {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--candle);
}
.card h3 { margin: 0.8rem 0 0.5rem; font-size: 1.4rem; }
.card p { margin: 0; color: var(--mist); font-size: 0.96rem; font-weight: 300; }
.card .go {
  margin-top: 1.1rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--candle-soft);
}

/* ---------- Remembrance / candle ---------- */
.candle-band {
  text-align: center;
  border-block: 1px solid var(--rule);
  background: radial-gradient(600px 300px at 50% 0%, rgba(230,169,75,0.08), transparent 70%);
}
.flame {
  width: 10px; height: 26px;
  margin: 0 auto 1.6rem;
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  background: radial-gradient(circle at 50% 70%, #fff4d6, var(--candle) 55%, #b9772a 100%);
  box-shadow: 0 0 22px 6px rgba(230,169,75,0.55), 0 0 60px 18px rgba(230,169,75,0.22);
  transform-origin: bottom center;
  animation: flicker 3.6s ease-in-out infinite;
}
@keyframes flicker {
  0%, 100% { transform: rotate(-1.5deg) scaleY(1); opacity: 0.95; }
  25%      { transform: rotate(1.5deg) scaleY(1.06); opacity: 1; }
  50%      { transform: rotate(-1deg) scaleY(0.97); opacity: 0.9; }
  75%      { transform: rotate(1deg) scaleY(1.03); opacity: 1; }
}

/* ---------- Victim origins list ---------- */
.origins {
  columns: 3 180px;
  column-gap: 2.5rem;
  margin: 2rem 0;
  font-weight: 300;
  color: var(--snow-dim);
}
.origins li {
  list-style: none;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--rule-soft);
  break-inside: avoid;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.96rem;
}
.origins li b { color: var(--candle); font-family: var(--mono); font-weight: 500; font-size: 0.85rem; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 3.5rem 2.5rem;
  margin-top: 3rem;
  color: var(--mist);
  font-size: 0.9rem;
  font-weight: 300;
}
.site-footer .wrap { display: grid; gap: 2rem; grid-template-columns: 1.4fr 1fr 1fr; }
.site-footer h4 {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--snow);
  margin: 0 0 1rem;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.site-footer a { color: var(--mist); }
.site-footer a:hover { color: var(--candle); }
.site-footer .colophon { grid-column: 1 / -1; border-top: 1px solid var(--rule-soft); padding-top: 1.6rem; font-size: 0.8rem; line-height: 1.6; }
.site-footer .brand { font-size: 1rem; margin-bottom: 0.8rem; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(78vw, 320px);
    flex-direction: column;
    gap: 0.4rem;
    padding: 6rem 2rem 2rem;
    background: var(--night-2);
    border-left: 1px solid var(--rule);
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    font-size: 0.85rem;
  }
  .nav.open { transform: none; }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: 0;
    cursor: pointer;
    padding: 0.4rem;
    z-index: 60;
  }
  .nav-toggle span { width: 26px; height: 1.5px; background: var(--snow); transition: transform 0.3s, opacity 0.3s; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
  .toll { grid-template-columns: 1fr; }
  .site-footer .wrap { grid-template-columns: 1fr; }
  .origins { columns: 2 140px; }
}