/* ============================================================
   UNDERSTORY — a field ledger of city life
   Recipe: Bento Ledger (SYSTEMS) — dark-inverted masthead override
   ============================================================ */

:root {
  --bg: #f3efe6;
  --surface: #faf8f2;
  --ink: #17140f;
  --muted: #6b6357;
  --rule: #d9d2c2;
  --accent: #0b6e4f;
  --accent-ink: #f3efe6;
  --accent-bright: #3fae86;
  --stamp: #b5502e;
  --stamp-ink: #f6ede6;
  --ink-dark: #17140f;
  --paper-on-dark: #f3efe6;
  --muted-on-dark: #b9b0a0;

  --font-display: ui-sans-serif, "Helvetica Neue", Arial, sans-serif;
  --font-body: ui-serif, Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Menlo, Consolas, monospace;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  --radius-sm: 4px;
  --radius-md: 8px;

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 200ms;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: clip;
}
h1, h2, h3, p, dl, dd { margin: 0; }
ul { margin: 0; padding: 0; }
button { font: inherit; color: inherit; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -60px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  background: var(--accent);
  color: var(--accent-ink);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-sm);
  z-index: 200;
  transition: top var(--dur) var(--ease-out);
  font-family: var(--font-display);
  font-weight: 600;
}
.skip-link:focus {
  top: var(--space-4);
}

/* ---------- focus ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
.entry-hit:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.masthead :focus-visible,
.colophon :focus-visible {
  outline-color: var(--accent-bright);
}

/* ============================================================
   MASTHEAD (structural override: dark-inverted, full-bleed hero)
   ============================================================ */
.masthead {
  background: var(--ink-dark);
  color: var(--paper-on-dark);
  padding-block: var(--space-9);
  overflow: clip;
  position: relative;
}
.masthead-inner {
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 64px);
}
.masthead-topline {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-on-dark);
  border-bottom: 1px solid rgba(243, 239, 230, 0.18);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-7);
  animation: fade-down 700ms var(--ease-out) both;
}

.masthead-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-8);
  align-items: center;
}
.masthead-text { min-width: 0; }

.wordmark {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(48px, 9vw, 132px);
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 0 0 var(--space-4);
  animation: fade-up 800ms var(--ease-out) both;
  animation-delay: 60ms;
}
.tagline {
  font-family: var(--font-body);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.55;
  max-width: 42ch;
  color: var(--paper-on-dark);
  opacity: 0.92;
  margin-bottom: var(--space-5);
  animation: fade-up 800ms var(--ease-out) both;
  animation-delay: 120ms;
}
.masthead-meta {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--accent-bright);
  margin-bottom: var(--space-6);
  animation: fade-up 800ms var(--ease-out) both;
  animation-delay: 160ms;
}
.masthead-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-5) var(--space-7);
  animation: fade-up 800ms var(--ease-out) both;
  animation-delay: 200ms;
}

.beat-nav {
  display: flex;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.beat-nav a {
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  padding-block: var(--space-3);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-bottom: 2px solid transparent;
  color: var(--paper-on-dark);
}
@media (hover: hover) and (pointer: fine) {
  .beat-nav a:hover { border-bottom-color: var(--accent-bright); color: var(--accent-bright); }
}
.beat-nav a:active { transform: scale(0.98); }

.masthead-seal {
  color: var(--paper-on-dark);
  opacity: 0.9;
  animation: seal-in 900ms var(--ease-out) both;
  animation-delay: 240ms;
}
.seal-ring-outer, .seal-ring-inner {
  fill: none;
  stroke: currentColor;
  stroke-opacity: 0.55;
}
.seal-ring-inner { stroke-dasharray: 2 6; }
.seal-arc-text {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  fill: var(--accent-bright);
}
.seal-word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: 0.02em;
  fill: currentColor;
}
.seal-word--small {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 0.08em;
  fill: var(--muted-on-dark);
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fade-down {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes seal-in {
  from { opacity: 0; transform: scale(0.85) rotate(-6deg); }
  to { opacity: 0.9; transform: scale(1) rotate(0deg); }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: 0.01em;
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--dur) var(--ease-out), background var(--dur) var(--ease-out), color var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out);
}
.btn--accent {
  background: var(--accent-bright);
  color: #0b1a13;
  border-color: var(--accent-bright);
}
@media (hover: hover) and (pointer: fine) {
  .btn--accent:hover { background: #58c79a; border-color: #58c79a; transform: translateY(-2px); }
}
.btn--accent:active { transform: scale(0.97); }

.btn--outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
@media (hover: hover) and (pointer: fine) {
  .btn--outline:hover { background: var(--ink); color: var(--bg); }
}
.btn--outline:active { transform: scale(0.97); }

.btn--stamp {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--rule);
  font-size: 14px;
}
.btn--stamp .count-chip {
  background: var(--rule);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  border-radius: 999px;
  padding: 2px 8px;
  transition: background var(--dur) var(--ease-out), color var(--dur) var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .btn--stamp:hover { border-color: var(--stamp); color: var(--stamp); transform: translateY(-1px); }
}
.btn--stamp:active { transform: scale(0.97); }
.btn--stamp[aria-pressed="true"] {
  background: var(--stamp);
  border-color: var(--stamp);
  color: var(--stamp-ink);
}
.btn--stamp[aria-pressed="true"] .count-chip {
  background: rgba(246, 237, 230, 0.25);
  color: var(--stamp-ink);
}

.btn--save {
  background: var(--surface);
  color: var(--accent);
  border-color: var(--accent);
  margin-bottom: var(--space-6);
}
@media (hover: hover) and (pointer: fine) {
  .btn--save:hover { background: var(--accent); color: var(--accent-ink); transform: translateY(-1px); }
}
.btn--save:active { transform: scale(0.97); }
.btn--save[aria-pressed="true"] {
  background: var(--stamp);
  border-color: var(--stamp);
  color: var(--stamp-ink);
}
@media (hover: hover) and (pointer: fine) {
  .btn--save[aria-pressed="true"]:hover { background: #963f22; border-color: #963f22; }
}
.stamp-icon { flex: none; }

/* ============================================================
   CONTROLS BAR
   ============================================================ */
.controls {
  background: var(--surface);
  border-bottom: 2px solid var(--rule);
  padding-block: var(--space-5);
}
.controls-inner {
  max-width: 1240px;
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 64px);
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: var(--space-5) var(--space-6);
}
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.field label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.field--search { flex: 1 1 260px; }
.field--filter { flex: 0 1 220px; }

.field input,
.field select {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  background: var(--bg);
  border: 2px solid var(--rule);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  min-height: 44px;
  transition: border-color var(--dur) var(--ease-out);
}
.field input:hover,
.field select:hover { border-color: var(--muted); }
.field input:focus-visible,
.field select:focus-visible { border-color: var(--accent); outline-offset: 1px; }
.field select { cursor: pointer; }

#saved-toggle { align-self: end; margin-left: auto; }

/* ============================================================
   LOG / LEDGER GRID
   ============================================================ */
.log {
  max-width: 1240px;
  margin-inline: auto;
  padding: var(--space-9) clamp(20px, 5vw, 64px) var(--space-8);
}
.log-header {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}
.section-label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.result-scent {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}

.ledger {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: var(--rule);
  border: 2px solid var(--rule);
}

.entry {
  position: relative;
  background: var(--surface);
}
.entry--lead {
  grid-column: 1 / -1;
}

.entry-hit {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: transparent;
  border: 0;
  padding: 0;
  margin: 0;
  cursor: pointer;
  width: 100%;
  text-align: left;
}

.entry-content {
  position: relative;
  z-index: 1;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}
.entry--lead .entry-content {
  padding: var(--space-7);
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: var(--space-7);
  row-gap: var(--space-3);
}
@media (hover: hover) and (pointer: fine) {
  .entry:hover .entry-content { background: var(--bg); transform: translateY(-2px); }
}
.entry:focus-within .entry-content { background: var(--bg); }
.entry:active .entry-content { transform: scale(0.995); }

.entry-meta-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  border-bottom: 1px solid var(--rule);
  padding-bottom: var(--space-3);
  margin-bottom: var(--space-4);
}
.entry--lead .entry-meta-row {
  grid-column: 1 / -1;
}
.entry-no {
  font-weight: 700;
  color: var(--ink);
}
.beat-stamp {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 8px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 999px;
}
.entry-date { margin-left: auto; }

.entry-no-big {
  display: none;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(56px, 6vw, 96px);
  line-height: 1;
  color: var(--rule);
}
.entry--lead .entry-no-big {
  display: block;
  grid-row: 2 / span 3;
}

.entry-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: var(--space-3);
}
.entry--lead .entry-title {
  font-size: clamp(26px, 3vw, 38px);
}
.entry-summary {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  margin-bottom: var(--space-4);
  flex: 1;
}
.entry--lead .entry-summary { font-size: 18px; max-width: 60ch; }

.entry-byline {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.held-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--stamp);
  border: 1px solid var(--stamp);
  border-radius: 999px;
  padding: 2px 8px;
  transform: rotate(-3deg);
}

/* ---------- empty state ---------- */
.empty-state {
  border: 2px dashed var(--rule);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  border-radius: var(--radius-md);
}
.empty-state-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
  margin-bottom: var(--space-2);
}
.empty-state-body {
  color: var(--muted);
  margin-bottom: var(--space-5);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  background: var(--bg);
  border-top: 2px solid var(--rule);
  padding: var(--space-9) clamp(20px, 5vw, 64px);
}
.about-inner {
  max-width: 900px;
  margin-inline: auto;
}
.about-lede {
  font-size: 19px;
  line-height: 1.65;
  max-width: 68ch;
  margin-block: var(--space-5) var(--space-7);
}
.beat-index-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-5);
  padding-block: var(--space-4);
  border-top: 1px solid var(--rule);
}
.beat-index-row:last-child { border-bottom: 1px solid var(--rule); }
.beat-index-row dt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
}
.beat-index-row dd {
  color: var(--muted);
  line-height: 1.6;
}

/* ============================================================
   COLOPHON / FOOTER (resolve: dark bookend)
   ============================================================ */
.colophon {
  background: var(--ink-dark);
  color: var(--paper-on-dark);
  padding: var(--space-8) clamp(20px, 5vw, 64px);
}
.colophon-inner {
  max-width: 700px;
  margin-inline: auto;
  text-align: center;
}
.colophon-word {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-5);
}
.colophon-note {
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted-on-dark);
  margin-bottom: var(--space-3);
  max-width: 60ch;
  margin-inline: auto;
}

/* ============================================================
   DETAIL VIEW (dialog)
   ============================================================ */
.detail-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  justify-content: flex-end;
}
.detail-overlay[hidden] { display: none; }

.detail-scrim {
  position: absolute;
  inset: 0;
  background: rgba(15, 13, 9, 0.55);
  animation: scrim-in 220ms var(--ease-out) both;
}

.detail {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  height: 100%;
  background: var(--surface);
  overflow-y: auto;
  box-shadow: -12px 0 32px rgba(0, 0, 0, 0.22);
  animation: panel-in 260ms var(--ease-out) both;
}

@keyframes scrim-in {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes panel-in {
  from { opacity: 0; transform: translateX(32px); }
  to { opacity: 1; transform: translateX(0); }
}

.detail-topbar {
  position: sticky;
  top: 0;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) clamp(20px, 4vw, var(--space-7));
  border-bottom: 2px solid var(--rule);
  z-index: 2;
}
.detail-entry-no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
}
.close-detail {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 10px 16px;
  background: transparent;
  border: 2px solid var(--rule);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  transition: border-color var(--dur) var(--ease-out), background var(--dur) var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .close-detail:hover { border-color: var(--ink); background: var(--bg); }
}
.close-detail:active { transform: scale(0.97); }

.detail-body {
  padding: var(--space-7) clamp(20px, 4vw, var(--space-7)) var(--space-9);
}
.detail-stamp {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 999px;
  margin-bottom: var(--space-4);
}
.detail-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 42px);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: var(--space-4);
}
.detail-byline {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  margin-bottom: var(--space-6);
}
.detail-text {
  max-width: 65ch;
  font-size: 18px;
  line-height: 1.7;
}
.detail-text p {
  margin-bottom: var(--space-5);
}
.detail-text p:first-child::first-letter {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 3.2em;
  float: left;
  line-height: 0.85;
  padding: 4px 8px 0 0;
  color: var(--accent);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 880px) {
  .masthead-main {
    grid-template-columns: 1fr;
  }
  .masthead-seal {
    width: 132px;
    justify-self: start;
  }
  .masthead-seal svg { width: 132px; height: 132px; }
}

@media (max-width: 640px) {
  .masthead { padding-block: var(--space-8); }
  .masthead-seal { display: none; }
  .ledger { grid-template-columns: 1fr; }
  .entry--lead .entry-content {
    grid-template-columns: 1fr;
  }
  .entry--lead .entry-no-big { display: none; }
  .about-inner .beat-index-row { grid-template-columns: 1fr; gap: var(--space-2); }
  .log { padding-block: var(--space-8) var(--space-7); }
  .controls-inner { align-items: stretch; }
  .field--filter { flex-basis: 100%; }
  #saved-toggle { width: 100%; justify-content: center; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .entry:hover .entry-content,
  .btn:hover,
  .btn--accent:hover {
    transform: none !important;
  }
}