/* ============================================================
   PLOT — a journal of city life
   Night edition. Ink + sodium amber. All-sans.
   ============================================================ */

@font-face {
  font-family: "Space Grotesk";
  src: url("assets/space-grotesk.ttf") format("truetype");
  font-weight: 300 400 500 600 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Work Sans";
  src: url("assets/work-sans.ttf") format("truetype");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/ibm-plex-mono.ttf") format("truetype");
  font-weight: 400 500 600;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink:        #0b0d11;
  --ink-soft:   #101319;
  --panel:      #14181f;
  --panel-2:   #1a1f28;
  --panel-3:   #222934;

  --text:      #ece6d7;
  --text-dim:  #a59f93;
  --text-faint:#8a857a;

  --rule:        rgba(236, 230, 215, 0.12);
  --rule-strong: rgba(236, 230, 215, 0.22);

  --amber:       #f5a92f;
  --amber-soft:  #ffc15a;
  --amber-glow:  rgba(245, 169, 47, 0.32);

  --display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --body:    "Work Sans", "Helvetica Neue", Arial, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --measure: 68ch;
  --gut: clamp(16px, 4vw, 64px);
  --radius: 4px;

  --shadow-1: 0 1px 0 rgba(0,0,0,0.4), 0 18px 40px -24px rgba(0,0,0,0.8);
  --shadow-2: 0 24px 70px -30px rgba(0,0,0,0.9);
}

/* reset */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body { min-height: 100svh; }

img { max-width: 100%; display: block; }
button { font: inherit; color: inherit; }
a { color: var(--amber-soft); }

::selection { background: var(--amber); color: var(--ink); }

/* focus ring */
:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 2px;
}
.detail :focus-visible { outline-color: var(--amber-soft); }

/* scrollbar */
* { scrollbar-color: var(--panel-3) var(--ink); }
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--ink); }
::-webkit-scrollbar-thumb { background: var(--panel-3); border: 3px solid var(--ink); border-radius: 20px; }

.mono {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 500;
}

.skip-link {
  position: absolute;
  left: 50%;
  top: -40px;
  transform: translateX(-50%);
  background: var(--amber);
  color: var(--ink);
  padding: 8px 16px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 0 0 6px 6px;
  z-index: 1000;
  transition: top 0.18s ease;
}
.skip-link:focus { top: 0; }

/* ============================================================
   MASTHEAD
   ============================================================ */
.masthead {
  padding: 28px var(--gut) 0;
  border-bottom: 1px solid var(--rule);
  background:
    radial-gradient(120% 80% at 85% -20%, rgba(245,169,47,0.08), transparent 60%),
    var(--ink);
}
.mast-utility {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--rule);
}
.mast-utility .mono { color: var(--text-faint); }
.mast-night { display: inline-flex; align-items: center; gap: 9px; }
.lamp {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 3px rgba(245,169,47,0.18), 0 0 12px 2px var(--amber-glow);
}

.mast-wordmark-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(16px, 4vw, 56px);
  padding: clamp(20px, 3vw, 36px) 0 18px;
}
.wordmark {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 0.82;
  font-size: clamp(72px, 15vw, 200px);
  color: var(--text);
}
.mast-tag {
  max-width: 26ch;
  text-align: right;
  color: var(--text-dim);
  padding-bottom: 0.9em;
  line-height: 1.5;
}

.mast-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 14px 0 0;
}
.nav-cat {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}
.nav-cat:hover { color: var(--text); }
.nav-cat[aria-pressed="true"] {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
}

/* ============================================================
   TOOLBAR
   ============================================================ */
.toolbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: minmax(220px, 1.6fr) minmax(160px, 1fr) auto auto;
  align-items: end;
  gap: 20px 28px;
  padding: 16px var(--gut);
  background: rgba(11, 13, 17, 0.82);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border-bottom: 1px solid var(--rule);
}
.field { display: flex; flex-direction: column; gap: 7px; }
.field .mono { color: var(--text-faint); }
.field-label-static { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-faint); }

.input-wrap, .select-wrap {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 6px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.input-wrap { gap: 0; }
.input-wrap:focus-within, .select-wrap:focus-within {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(245,169,47,0.14);
}
.input-icon {
  width: 16px; height: 16px;
  margin: 0 12px;
  color: var(--text-faint);
  flex: none;
}
#search, #filter {
  width: 100%;
  border: none;
  background: transparent;
  color: var(--text);
  font-family: var(--body);
  font-size: 16px;
  padding: 13px 14px 13px 0;
}
#search { padding-left: 0; }
#search::placeholder { color: var(--text-faint); }
#search::-webkit-search-cancel-button { -webkit-appearance: none; }

.select-wrap { padding-right: 0; }
#filter {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 38px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
}
#filter option { background: var(--panel); color: var(--text); text-transform: none; }
.select-caret {
  position: absolute;
  right: 14px;
  width: 16px; height: 16px;
  color: var(--text-dim);
  pointer-events: none;
}

/* saved toggle */
.toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--panel);
  border: 1px solid var(--rule);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 12px 16px;
  border-radius: 6px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.toggle:hover { border-color: var(--rule-strong); }
.toggle-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 1px solid var(--text-faint);
  background: transparent;
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.toggle[aria-pressed="true"] {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
}
.toggle[aria-pressed="true"] .toggle-dot {
  background: var(--ink);
  border-color: var(--ink);
}
.toggle-count {
  margin-left: 2px;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(236,230,215,0.10);
  color: inherit;
}
.toggle[aria-pressed="false"] .toggle-count { color: var(--text-faint); }

.result-count {
  justify-self: end;
  align-self: center;
  color: var(--text-faint);
  white-space: nowrap;
}

/* ============================================================
   FEED
   ============================================================ */
main { padding: clamp(28px, 4vw, 52px) var(--gut) 64px; }
.feed {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: clamp(20px, 2.2vw, 32px);
  transition: opacity 0.2s ease;
}
.feed[data-loading="true"] { opacity: 0; }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--ink-soft);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.18s ease, transform 0.18s ease, background 0.18s ease;
}
.card:hover { border-color: var(--rule-strong); }
.card:focus-within { border-color: var(--amber); }

.card-lead  { grid-column: span 6; }
.card-wide  { grid-column: span 3; }
.card-narrow{ grid-column: span 2; }

/* lead card: horizontal */
.card-lead {
  flex-direction: row;
  background: linear-gradient(180deg, var(--panel) 0%, var(--ink-soft) 100%);
}
.card-lead .card-plate { width: 46%; flex: none; min-height: 320px; }
.card-lead .card-body { padding: clamp(28px, 3vw, 44px); display: flex; flex-direction: column; justify-content: center; }
.card-lead .card-title { font-size: clamp(34px, 4.4vw, 56px); line-height: 1.02; }
.card-lead .card-summary { font-size: 19px; max-width: 52ch; }

/* vertical cards (wide) */
.card-wide .card-plate { aspect-ratio: 16 / 10; }
.card-wide .card-body { padding: 22px 22px 26px; }
.card-wide .card-title { font-size: clamp(22px, 2vw, 28px); line-height: 1.08; }

/* narrow text-only cards */
.card-narrow { background: var(--ink-soft); }
.card-narrow .card-body {
  padding: 26px 24px 28px;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.card-narrow .card-title { font-size: clamp(20px, 1.7vw, 24px); line-height: 1.12; }

/* plate / duotone */
.card-plate { position: relative; background: #0b0d11; overflow: hidden; }
.duo { background: #0b0d11; }
.duo img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  filter: grayscale(1) contrast(1.18) brightness(0.55);
  opacity: 0.9;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), filter 0.5s ease;
}
.card:hover .duo img { transform: scale(1.035); filter: grayscale(1) contrast(1.18) brightness(0.62); }
.duo::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--amber);
  mix-blend-mode: lighten;
  opacity: 0.50;
}
.duo::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 35%, rgba(11,13,17,0.65) 100%);
  mix-blend-mode: multiply;
  opacity: 1;
  pointer-events: none;
}
.plate-tag {
  position: absolute;
  top: 12px; left: 12px;
  z-index: 2;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--amber);
  padding: 4px 8px;
  border-radius: 3px;
}

/* card body */
.card-body { display: flex; flex-direction: column; gap: 14px; flex: 1; }
.card-title { margin: 0; font-family: var(--display); font-weight: 600; letter-spacing: -0.025em; color: var(--text); }
.card-title .open {
  background: none; border: none; padding: 0; margin: 0;
  text-align: left; cursor: pointer; color: inherit; font: inherit;
  letter-spacing: inherit; line-height: inherit;
  text-decoration: none;
  background-image: linear-gradient(var(--amber), var(--amber));
  background-size: 0% 2px;
  background-repeat: no-repeat;
  background-position: 0 100%;
  transition: background-size 0.25s ease, color 0.15s ease;
  border-radius: 0;
}
.card-title .open:hover { color: var(--amber-soft); background-size: 100% 2px; }
.card-summary { margin: 0; color: var(--text-dim); font-size: 16px; line-height: 1.6; }
.card-narrow .card-summary { font-size: 15px; }
.card-meta {
  margin: auto 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--text-faint);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  align-items: center;
}
.card-meta .cat { color: var(--amber-soft); }
.card-meta .sep { opacity: 0.4; }
.card-meta .saved-flag { color: var(--amber); display: none; }
.card[data-saved="true"] .saved-flag { display: inline; }

/* ============================================================
   EMPTY STATE
   ============================================================ */
.empty {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  padding: clamp(40px, 7vw, 88px) 0;
  max-width: 60ch;
}
.empty-title {
  margin: 0;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.02em;
}
.empty-body { margin: 0; color: var(--text-dim); font-size: 17px; max-width: 50ch; }
.link-button {
  margin-top: 6px;
  background: transparent;
  border: 1px solid var(--amber);
  color: var(--amber-soft);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 11px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.link-button:hover { background: var(--amber); color: var(--ink); }

/* ============================================================
   DETAIL DIALOG
   ============================================================ */
.detail {
  width: 100vw; height: 100vh; height: 100svh;
  max-width: none; max-height: none;
  margin: 0;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--text);
  overflow: hidden;
}
.detail::backdrop {
  background: rgba(7, 8, 11, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.detail[open] { animation: dialog-in 0.32s cubic-bezier(0.16, 1, 0.3, 1) both; }
.detail[open]::backdrop { animation: backdrop-in 0.32s ease both; }
@keyframes dialog-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes backdrop-in { from { opacity: 0; } to { opacity: 1; } }

.detail-inner {
  width: 100%; height: 100%;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.detail-top {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px var(--gut);
  background: rgba(14, 16, 22, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rule);
}
.detail-article {
  max-width: 740px;
  margin: 0 auto;
  padding: clamp(28px, 6vw, 80px) var(--gut) clamp(48px, 8vw, 120px);
}
.detail-meta-top { color: var(--text-faint); }
.close-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--panel);
  border: 1px solid var(--rule);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 9px 14px 9px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.close-button svg { width: 14px; height: 14px; }
.close-button:hover { border-color: var(--amber); color: var(--amber-soft); }

.detail-title {
  margin: clamp(8px, 2vw, 24px) 0 0;
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(34px, 5.4vw, 64px);
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--text);
}
.detail-deck {
  margin: 22px 0 0;
  font-size: clamp(19px, 2vw, 22px);
  line-height: 1.5;
  color: var(--text-dim);
  font-weight: 400;
  max-width: 58ch;
}
.detail-byline {
  margin: 20px 0 0;
  color: var(--text-faint);
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
}
.detail-byline .cat { color: var(--amber-soft); }
.detail-byline .sep { opacity: 0.4; }

.detail-plate {
  margin: clamp(32px, 5vw, 48px) 0 0;
  position: relative;
}
.detail-plate .detail-duo {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
}
.detail-plate img { width: 100%; height: 100%; object-fit: cover; }
.plate-cap {
  margin: 10px 0 0;
  color: var(--text-faint);
  font-size: 11px;
  letter-spacing: 0.10em;
}

.detail-body {
  margin-top: clamp(32px, 5vw, 48px);
  font-size: 19px;
  line-height: 1.75;
  color: var(--text);
  max-width: var(--measure);
}
.detail-body p { margin: 0 0 1.4em; }
.detail-body p:first-child::first-letter {
  font-family: var(--display);
  font-weight: 600;
  font-size: 4.6em;
  line-height: 0.82;
  float: left;
  margin: 0.04em 0.12em 0 -0.04em;
  color: var(--amber);
}

.detail-foot {
  margin-top: clamp(40px, 6vw, 64px);
  padding-top: 28px;
  border-top: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.save-button {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  border: 1px solid var(--rule);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 13px 20px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.save-button:hover { border-color: var(--rule-strong); }
.save-mark {
  width: 12px; height: 12px;
  border: 1.5px solid var(--text-dim);
  border-radius: 2px;
  transform: rotate(45deg);
  transition: background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.save-button[aria-pressed="true"] {
  color: var(--ink);
  background: var(--amber);
  border-color: var(--amber);
}
.save-button[aria-pressed="true"] .save-mark {
  background: var(--ink);
  border-color: var(--ink);
}
.detail-foot-note { color: var(--text-faint); }

/* ============================================================
   COLOPHON
   ============================================================ */
.colophon {
  padding: clamp(48px, 7vw, 88px) var(--gut) 36px;
  border-top: 1px solid var(--rule);
  background: var(--ink-soft);
}
.colophon-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1.6fr;
  gap: 40px;
}
.colo-brand .wordmark-sm {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.04em;
  font-size: 36px;
  color: var(--text);
  display: block;
  margin-bottom: 10px;
}
.colo-brand .mono { max-width: 32ch; line-height: 1.6; }
.colo-head { color: var(--text); margin: 0 0 14px; }
.colo-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.colo-list .nav-cat { text-align: left; padding: 4px 0; border-radius: 0; }
.colo-list .nav-cat:hover { color: var(--amber-soft); }
.colo-list .nav-cat[aria-pressed="true"] { background: transparent; color: var(--amber); border-color: transparent; }
.colo-text { color: var(--text-dim); font-size: 15px; line-height: 1.65; max-width: 46ch; margin: 0; }
.colo-rule { height: 1px; background: var(--rule); margin: 40px 0 24px; }
.colo-fine { color: var(--text-faint); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .feed { grid-template-columns: repeat(2, 1fr); }
  .card-lead { grid-column: span 2; }
  .card-wide, .card-narrow { grid-column: span 1; }
  .colophon-grid { grid-template-columns: 1fr 1fr; }
  .colo-brand { grid-column: span 2; }
}

@media (max-width: 760px) {
  :root { --gut: 20px; }
  body { font-size: 17px; }

  .mast-wordmark-row { flex-direction: column; align-items: flex-start; gap: 8px; }
  .mast-tag { text-align: left; padding-bottom: 0; max-width: none; }

  .toolbar {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 14px var(--gut);
  }
  .result-count { justify-self: start; }

  .feed { grid-template-columns: 1fr; }
  .card-lead, .card-wide, .card-narrow { grid-column: span 1; }
  .card-lead { flex-direction: column; }
  .card-lead .card-plate { width: 100%; min-height: 0; aspect-ratio: 16/10; }
  .card-lead .card-title { font-size: clamp(28px, 7vw, 40px); }
  .card-lead .card-summary { font-size: 17px; }

  .detail-body { font-size: 18px; }

  .colophon-grid { grid-template-columns: 1fr; gap: 32px; }
  .colo-brand { grid-column: auto; }
}

@media (max-width: 480px) {
  .mast-utility { font-size: 11px; }
  .mast-utility .mono { font-size: 10px; }
  .detail-top .detail-meta-top { font-size: 10px; max-width: 50%; }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .detail[open] { transform: none; opacity: 1; }
}