/* signaletter.si — Direction C: Signal over noise. */

:root {
  --ink: #0f1724;
  --paper: #f3f2ee;
  --teal: #2f7a75;
  --teal-bright: #66b8ac;
  --bg: var(--paper);
  --bg-elevated: #ffffff;
  --text: var(--ink);
  --text-muted: #5c6570;
  --border: #e0ddd6;
  --accent: var(--teal);
  --accent-soft: #e4f1ef;
  --badge-weekday: var(--teal);
  --badge-weekend: #5a4a3a;
  --badge-markets: var(--teal);
  --badge-ai: #3d5a80;
  --badge-unconfirmed: #595959;
  --link: var(--teal);
  --link-hover: #1f5a52;
  --max-width: 40rem;
  --font-serif: "Source Serif 4", "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --font-sans: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Code", "SF Mono", Menlo, monospace;
  --space: 1.125rem;
  --tap-min: 44px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--ink);
    --bg-elevated: #162032;
    --text: var(--paper);
    --text-muted: #a3aab4;
    --border: #2a3344;
    --accent: var(--teal-bright);
    --accent-soft: #1a2e2e;
    --badge-weekday: var(--teal-bright);
    --badge-weekend: #c4a882;
    --badge-markets: var(--teal-bright);
    --badge-ai: #8fb3d9;
    --badge-unconfirmed: #9a9a9a;
    --link: var(--teal-bright);
    --link-hover: #9ad4c8;
  }
}

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

html {
  font-size: 100%; /* 16px root; body sets 17px */
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, var(--accent-soft), transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg) 100%);
}

a {
  color: var(--link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--link-hover);
}

/* Header / main chrome live in nav.css (topic shell). */
.site-main {
  flex: 1;
}

.site-footer__inner {
  width: 100%;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* —— Badges —— */

.badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border: 1px solid currentColor;
  border-radius: 2px;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.3;
  vertical-align: middle;
}

.badge--weekday {
  color: var(--badge-weekday);
}

.badge--weekend {
  color: var(--badge-weekend);
}

.badge--markets {
  color: var(--badge-markets);
}

.badge--ai {
  color: var(--badge-ai);
}

.badge--unconfirmed {
  color: var(--badge-unconfirmed);
  border-style: dashed;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: none;
  font-size: 0.75em;
  padding: 0.1rem 0.4rem;
}

/* —— Issue / day —— */

.issue-header {
  margin-bottom: calc(var(--space) * 1.25);
}

.issue-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  margin-bottom: 0.65rem;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.issue-date {
  font-variant-numeric: tabular-nums;
}

.issue-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.issue-title a {
  color: var(--text);
  text-decoration: none;
}

.issue-title a:hover {
  color: var(--accent);
}

.day-switcher {
  display: flex;
  gap: 0.25rem;
  margin: 0 0 calc(var(--space) * 1.5);
  padding: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elevated);
  font-family: var(--font-sans);
  position: sticky;
  top: 0.5rem;
  z-index: 2;
}

.day-switcher__link {
  flex: 1;
  text-align: center;
  padding: 0.45rem 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 2px;
}

.day-switcher__link:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.day-panel {
  margin-bottom: calc(var(--space) * 2.5);
  padding-top: 0.5rem;
  scroll-margin-top: 3.5rem;
}

.day-panel + .day-panel {
  border-top: 1px solid var(--border);
  padding-top: calc(var(--space) * 2);
}

.day-panel__label {
  margin: 0 0 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.day-panel__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 0.75rem;
  margin: 0 0 1.25rem;
  font-family: var(--font-sans);
}

.day-panel__section-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.35;
}

.ai-toc {
  margin: 0 0 1.75rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elevated);
  font-family: var(--font-sans);
}

.ai-toc__label {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.ai-toc__list {
  margin: 0;
  padding-left: 1.2rem;
  font-size: 0.85rem;
  line-height: 1.45;
}

.ai-toc__list li {
  margin-bottom: 0.35rem;
}

.ai-toc__list a {
  text-decoration: none;
}

.ai-toc__list a:hover {
  text-decoration: underline;
}

.issue-body > *:first-child {
  margin-top: 0;
}

.issue-body > *:last-child {
  margin-bottom: 0;
}

.issue-body h1,
.issue-body h2,
.issue-body h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  line-height: 1.3;
  margin-top: 1.75em;
  margin-bottom: 0.5em;
  scroll-margin-top: 3.5rem;
}

.issue-body h1 {
  font-size: 1.25rem;
  margin-top: 0;
}

.issue-body h2 {
  font-size: 1.1rem;
}

.issue-body h3 {
  font-size: 1.05rem;
}

.issue-body p,
.issue-body ul,
.issue-body ol {
  margin: 0 0 1.1em;
}

.issue-body ul,
.issue-body ol {
  padding-left: 1.25em;
}

.issue-body li {
  margin-bottom: 0.4em;
}

.issue-body li::marker {
  color: var(--text-muted);
}

.issue-body strong {
  font-weight: 700;
}

.issue-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2em 0;
}

.issue-body a {
  overflow-wrap: anywhere;
  word-break: break-word;
}

.issue-body code {
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, monospace;
  font-size: 0.88em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.issue-body pre {
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elevated);
  font-size: 0.85em;
  line-height: 1.45;
}

.issue-body pre code {
  overflow-wrap: normal;
  word-break: normal;
  white-space: pre;
}

.issue-body table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-collapse: collapse;
}

.issue-body img {
  max-width: 100%;
  height: auto;
}

.issue-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: calc(var(--space) * 2.5);
  padding-top: var(--space);
  border-top: 1px solid var(--border);
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.issue-nav a {
  text-decoration: none;
}

.issue-nav a:hover {
  text-decoration: underline;
}

.issue-nav__prev,
.issue-nav__next {
  max-width: 45%;
}

.issue-nav__next {
  margin-left: auto;
  text-align: right;
}

.issue-nav__label {
  display: block;
  color: var(--text-muted);
  font-size: 0.75rem;
  margin-bottom: 0.2rem;
}

/* —— Home: latest + archive —— */

.home-latest {
  margin-bottom: calc(var(--space) * 3);
}

.permalink {
  margin-top: 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
}

.section-label {
  margin: 0 0 var(--space);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.archive {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--border);
}

.archive__item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.5rem 1rem;
  align-items: baseline;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-sans);
}

.archive__date {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.archive__title {
  font-size: 0.95rem;
  line-height: 1.35;
}

.archive__title a {
  color: var(--text);
  text-decoration: none;
}

.archive__title a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.archive__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

@media (max-width: 540px) {
  .archive__item {
    grid-template-columns: 1fr auto;
    grid-template-rows: auto auto;
  }

  .archive__date {
    grid-column: 1;
  }

  .archive__badges {
    grid-column: 2;
    grid-row: 1;
  }

  .archive__title {
    grid-column: 1 / -1;
  }
}

.empty-state {
  color: var(--text-muted);
  font-style: italic;
}

/* —— Footer —— */

.site-footer {
  margin-top: auto;
  padding: var(--space);
  border-top: 1px solid var(--border);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-width: 0;
}

.site-footer__lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  text-decoration: none;
  color: var(--text);
}

.site-footer__lockup:hover {
  color: var(--text);
}

.site-footer__mark {
  width: 1.35rem;
  height: 1.35rem;
  flex-shrink: 0;
  border-radius: 0.3rem;
  overflow: hidden;
}

.site-footer__mark img {
  display: block;
  width: 100%;
  height: 100%;
}

.site-footer__word {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.site-footer__l {
  color: var(--accent);
}

.site-footer__motto {
  margin: 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.site-footer__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
  text-align: right;
}

.site-footer a {
  color: var(--text-muted);
}

.site-footer a:hover {
  color: var(--accent);
}

.disclaimer {
  font-style: italic;
}

/* —— Charts —— */

.chart {
  margin: 1.25rem 0 1.5rem;
  padding: 0;
  width: 100%;
  max-width: 100%;
}

.chart__header {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0.55rem;
  margin-bottom: 0.5rem;
  font-family: var(--font-sans);
}

.chart__stats {
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--text);
}

.chart__stat-latest strong {
  font-size: 1.05rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.chart__stat-yoy {
  display: inline-block;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  margin-top: 0.15rem;
}

.chart__stat-up {
  color: #1a7a4c;
}

.chart__stat-down {
  color: #a33b3b;
}

@media (prefers-color-scheme: dark) {
  .chart__stat-up {
    color: #5dcca0;
  }

  .chart__stat-down {
    color: #e08a8a;
  }
}

.chart__ranges {
  display: flex;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: var(--bg-elevated);
}

.chart__range {
  appearance: none;
  flex: 1 1 0;
  min-height: var(--tap-min);
  min-width: 0;
  border: none;
  border-right: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.35rem 0.2rem;
  cursor: pointer;
  line-height: 1.15;
  -webkit-tap-highlight-color: transparent;
}

.chart__range:last-child {
  border-right: none;
}

.chart__range:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.chart__range--active {
  color: #fff;
  background: var(--accent);
}

@media (prefers-color-scheme: dark) {
  .chart__range--active {
    color: #141414;
  }
}

.chart__frame {
  position: relative;
  width: 100%;
  height: 240px;
  padding: 0.55rem 0.35rem 0.2rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-elevated);
  touch-action: pan-y;
}

@media (min-width: 640px) {
  .chart__header {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
  }

  .chart__ranges {
    width: auto;
    flex: 0 0 auto;
  }

  .chart__range {
    flex: 0 0 auto;
    padding: 0.35rem 0.55rem;
    font-size: 0.75rem;
  }

  .chart__frame {
    height: 280px;
    padding: 0.75rem 0.5rem 0.25rem;
  }
}

@media (min-width: 1024px) {
  .chart__frame {
    height: 17rem;
  }
}

.chart__canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

.chart__caption {
  margin: 0.55rem 0 0.15rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.4;
}

.chart__source {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.chart__source a {
  color: var(--text-muted);
}