/* LANTERN - a city journal. Night-edition wayfinding aesthetic. */

@font-face {
  font-family: "Space Grotesk";
  src: url("assets/space-grotesk.ttf") format("truetype");
  font-weight: 300 700;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/ibm-plex-mono.ttf") format("truetype");
  font-weight: 400 600;
  font-display: swap;
}
@font-face {
  font-family: "Literata";
  src: url("assets/literata.ttf") format("truetype");
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ink: #0e1014;
  --ink-2: #14171e;
  --ink-3: #1a1f28;
  --line: rgba(245, 240, 226, 0.13);
  --line-strong: rgba(245, 240, 226, 0.28);
  --text: #ece7da;
  --text-dim: #b1aca0;
  --text-mute: #8c8779;
  --accent: #f4a83a;
  --accent-soft: rgba(244, 168, 58, 0.16);
  --accent-ink: #0e1014;

  --maxw: 1180px;
  --gut: clamp(20px, 4vw, 40px);
  --sans: "Space Grotesk", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --serif: "Literata", Georgia, serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
}

/* faint route-line grain on the canvas, fixed, never repaints with scroll */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(120% 80% at 85% -10%, rgba(244, 168, 58, 0.06), transparent 55%),
    radial-gradient(90% 60% at 0% 100%, rgba(120, 170, 210, 0.04), transparent 60%);
}

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 0;
}

button { font-family: inherit; }

.mono {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- Masthead ---------- */
header.masthead {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(14, 16, 20, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.masthead-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 14px var(--gut);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 64px;
}
.brand { display: flex; align-items: baseline; gap: 12px; text-decoration: none; }
.brand-mark {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.28rem;
  letter-spacing: -0.02em;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.brand-mark::before {
  content: "";
  width: 11px;
  height: 11px;
  background: var(--accent);
  display: inline-block;
  transform: rotate(45deg);
}
.brand-sub {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.saved-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line-strong);
  padding: 8px 14px 8px 12px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.saved-toggle:hover { border-color: var(--accent); color: var(--accent); }
.saved-toggle[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}
.saved-toggle .count {
  font-variant-numeric: tabular-nums;
  color: var(--text-mute);
}
.saved-toggle[aria-pressed="true"] .count { color: var(--accent-ink); }
.saved-toggle[aria-pressed="false"] .count.pristine { color: var(--text-mute); }

/* ---------- Controls bar ---------- */
.controls {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px var(--gut) 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 18px 22px;
}
.control { display: flex; flex-direction: column; gap: 7px; }
.control.grow { flex: 1 1 280px; }
.control label {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.control input,
.control select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--ink-2);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  padding: 11px 13px;
  font-family: var(--sans);
  font-size: 0.95rem;
  width: 100%;
}
.control input::placeholder { color: var(--text-mute); }
.control input:focus,
.control select:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
.control select {
  background-image: linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
                    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}
.control select option { background: var(--ink-2); color: var(--text); }

.section-rule {
  max-width: var(--maxw);
  margin: 22px auto 0;
  padding: 0 var(--gut);
}
.section-rule::after {
  content: "";
  display: block;
  height: 1px;
  background: var(--line-strong);
}

/* ---------- Hero feature ---------- */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 34px var(--gut) 8px;
}
.hero-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: center;
}
.hero-text { display: flex; flex-direction: column; gap: 18px; min-width: 0; }
.hero-eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--accent);
}
.hero-title {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(2rem, 4.6vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: -0.022em;
  margin: 0;
  color: var(--text);
}
.hero-title button {
  background: none;
  border: 0;
  padding: 0;
  text-align: left;
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  cursor: pointer;
  display: inline;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 0% 2px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size 0.3s ease, color 0.2s ease;
}
.hero-title button:hover { color: var(--accent); background-size: 100% 2px; }
.hero-summary {
  font-family: var(--serif);
  font-size: 1.12rem;
  line-height: 1.6;
  color: var(--text-dim);
  max-width: 42ch;
  margin: 0;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.hero-meta .sep { color: var(--line-strong); }
.hero-meta .read { color: var(--accent); }
.hero-media {
  display: flex;
  flex-direction: column;
}
.hero-media-frame {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line-strong);
}
.hero-media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: saturate(0.82) brightness(0.78) contrast(1.05);
}
.hero-media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(14, 16, 20, 0.62) 0%, rgba(14, 16, 20, 0.12) 55%, transparent 100%);
}
.hero-media .caption {
  display: block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
}

/* ---------- Index list ---------- */
.list-wrap { max-width: var(--maxw); margin: 0 auto; padding: 14px var(--gut) 60px; }
.list {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
/* transit stop-mark sits on the route line */
.list::before {
  content: "";
  position: absolute;
  left: 13px;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: var(--line);
}

.item {
  display: grid;
  grid-template-columns: 56px 92px 1fr auto;
  gap: 22px;
  align-items: start;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  position: relative;
}
.item:last-child { border-bottom: 1px solid var(--line); }
.item .num {
  font-family: var(--mono);
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  color: var(--text-mute);
  padding-top: 6px;
  padding-left: 22px;
  position: relative;
  z-index: 1;
  transition: color 0.18s ease;
}
.item .num::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 12px;
  width: 8px;
  height: 8px;
  background: var(--ink);
  border: 1px solid var(--line-strong);
  transform: rotate(45deg);
}
.item.saved .num { color: var(--accent); }
.item.saved .num::before { background: var(--accent); border-color: var(--accent); }

.item .cat {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  padding-top: 8px;
  writing-mode: vertical-rl;
  align-self: start;
  max-height: 9em;
}

.item .body { min-width: 0; display: flex; flex-direction: column; gap: 9px; }
.item .title-btn {
  background: none;
  border: 0;
  padding: 0;
  text-align: left;
  cursor: pointer;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 1.5rem;
  line-height: 1.12;
  letter-spacing: -0.012em;
  color: var(--text);
  margin: 0;
  transition: color 0.18s ease;
  max-width: 30ch;
}
.item .title-btn:hover { color: var(--accent); }
.item .summary {
  font-family: var(--serif);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text-dim);
  margin: 0;
  max-width: 60ch;
}
.item .meta {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-mute);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.item .meta .sep { color: var(--line-strong); }
.item .meta .saved-tag { color: var(--accent); }

.item .end {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  padding-top: 6px;
}
.item .read-time {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  white-space: nowrap;
}
.item .open-link {
  background: none;
  border: 1px solid var(--line-strong);
  color: var(--text);
  padding: 9px 14px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color 0.18s ease, color 0.18s ease, background 0.18s ease;
  white-space: nowrap;
}
.item .open-link:hover { border-color: var(--accent); color: var(--accent); }
.item .open-link:active { transform: translateY(1px); }

/* ---------- Empty state ---------- */
.empty-state {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 70px var(--gut) 90px;
  text-align: left;
}
.empty-state .glyph {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.empty-state h2 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.02em;
  margin: 0 0 10px;
}
.empty-state p {
  font-family: var(--serif);
  color: var(--text-dim);
  margin: 0 0 26px;
  max-width: 50ch;
  line-height: 1.6;
}
.empty-state .reset {
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  padding: 12px 20px;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  font-weight: 600;
}
.empty-state .reset:active { transform: translateY(1px); }

/* ---------- Footer ---------- */
footer.colophon {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 30px var(--gut) 56px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  justify-content: space-between;
  align-items: baseline;
}
.colophon .wordmark {
  font-family: var(--sans);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-size: 1rem;
}
.colophon .note {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
}

/* ---------- Detail dialog ---------- */
dialog#detail {
  border: 0;
  background: var(--ink);
  color: var(--text);
  padding: 0;
  max-width: min(780px, 100vw);
  width: calc(100% - 32px);
  max-height: 92dvh;
  overflow: hidden;
  border-radius: 0;
}
dialog#detail::backdrop {
  background: rgba(6, 7, 10, 0.72);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.dialog-scroll { max-height: 92dvh; overflow-y: auto; }

.detail-head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px clamp(22px, 5vw, 40px);
  background: rgba(14, 16, 20, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.detail-head .trail {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-mute);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  align-items: center;
}
.detail-head .trail .cat { color: var(--accent); }
.detail-head .trail .sep { color: var(--line-strong); }
.close-btn {
  background: none;
  border: 1px solid var(--line-strong);
  color: var(--text);
  padding: 8px 12px 8px 12px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color 0.18s ease, color 0.18s ease;
}
.close-btn:hover { border-color: var(--accent); color: var(--accent); }
.close-btn .x { font-size: 1rem; line-height: 1; }

.detail-body-pad { padding: 26px clamp(22px, 5vw, 40px) 30px; }
.detail-title {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(1.7rem, 4.2vw, 2.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
}
.detail-byline {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 22px;
}
.detail-byline .author { color: var(--text); }

.detail-figure {
  margin: 0 0 26px;
  position: relative;
}
.detail-figure img {
  width: 100%;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.85);
  border: 1px solid var(--line-strong);
}
.detail-figure figcaption {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.article-body { font-family: var(--serif); font-size: 1.085rem; line-height: 1.78; color: var(--text); }
.article-body p { margin: 0 0 1.15em; max-width: 64ch; }
.article-body p:first-of-type::first-letter {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 3.1em;
  line-height: 0.86;
  float: left;
  margin: 0.08em 0.1em 0 0;
  color: var(--accent);
}

.detail-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  flex-wrap: wrap;
}
.detail-foot .hint {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.save-btn {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 12px 20px;
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: background 0.18s ease, color 0.18s ease;
}
.save-btn::before {
  content: "+";
  font-family: var(--sans);
  font-size: 1.05rem;
  line-height: 1;
}
.save-btn[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-ink);
}
.save-btn[aria-pressed="true"]::before { content: "\2713"; }
.save-btn:active { transform: translateY(1px); }

dialog#detail[open] .dialog-scroll { animation: rise 0.34s cubic-bezier(0.16, 1, 0.3, 1); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero-card { grid-template-columns: 1fr; gap: 26px; }
  .hero-media-frame { order: -1; aspect-ratio: 16 / 10; }
  .item { grid-template-columns: 44px 1fr; gap: 16px; }
  .item .cat {
    writing-mode: horizontal-tb;
    transform: none;
    grid-column: 2;
    padding-top: 0;
    margin-bottom: 2px;
    max-height: none;
  }
  .item .body { grid-column: 2; }
  .item .end {
    grid-column: 2;
    flex-direction: row;
    justify-content: space-between;
    width: 100%;
    align-items: center;
    padding-top: 4px;
  }
}

@media (max-width: 560px) {
  .masthead-inner { padding: 12px var(--gut); }
  .brand-sub { display: none; }
  .controls { padding-top: 22px; gap: 16px; }
  .item .title-btn { font-size: 1.28rem; }
  .article-body { font-size: 1.02rem; }
  .article-body p:first-of-type::first-letter { font-size: 2.7em; }
  .detail-head { padding: 14px 18px; }
  .detail-body-pad { padding: 22px 18px 26px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
  }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}