/* ---------- variables ---------- */

:root {
  --paper: #fafaf7;
  --ink: #181818;
  --ink-soft: #4a4a48;
  --ink-faint: #8a8a86;
  --rule: #1a1a1a;
  --accent: #8b1e1e;

  --serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --display: "Old Standard TT", "Source Serif 4", Georgia, serif;
  --label: "Barlow Condensed", "Roboto Condensed", "Arial Narrow", sans-serif;

  --column: 38rem;
}

/* ---------- reset ---------- */

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.55;
  font-feature-settings: "onum" 1, "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

/* ---------- layout ---------- */

.page {
  max-width: var(--column);
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
}

@media (min-width: 700px) {
  .page {
    padding: 4rem 2rem 3rem;
  }
}

.rule {
  border: 0;
  border-top: 1px solid var(--rule);
  margin: 2rem 0;
  opacity: 0;
}

.rule--double {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  height: 4px;
  background: var(--paper);
}

/* ---------- masthead ---------- */

.masthead {
  text-align: center;
}

.masthead__title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2.625rem, 9vw, 4.5rem);
  letter-spacing: 0.02em;
  margin: 0;
  line-height: 0.95;
}

.masthead__tagline {
  font-family: var(--serif);
  font-style: italic;
  font-size: 1rem;
  color: var(--ink-soft);
  margin: 0.7rem 0 0;
  line-height: 1.3;
}

.masthead__edition {
  font-family: var(--label);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin: 0.55rem 0 0;
}

/* ---------- search ---------- */

.search {
  margin: 1.5rem 0 0.5rem;
}

.search__form {
  display: flex;
  align-items: stretch;
  border-bottom: 2px solid var(--ink);
}

.search__input {
  flex: 1;
  font-family: var(--serif);
  font-size: 1.45rem;
  line-height: 1.4;
  background: transparent;
  border: 0;
  padding: 0.7rem 0.25rem;
  color: var(--ink);
  font-style: italic;
}

.search__input::placeholder {
  color: var(--ink-faint);
  font-style: italic;
}

.search__input:focus {
  outline: none;
}

.search__submit {
  font-family: var(--display);
  font-size: 1.5rem;
  padding: 0 0.6rem;
  color: var(--ink);
  transition: color 0.15s ease;
}

.search__submit:hover {
  color: var(--accent);
}

.search__hint {
  font-size: 0.92rem;
  color: var(--ink-soft);
  margin: 0.85rem 0 0;
  font-style: italic;
}

.search__hint.is-hidden {
  display: none;
}

.suggest {
  font: inherit;
  color: var(--ink-soft);
  text-decoration: underline;
  text-underline-offset: 0.18em;
  text-decoration-thickness: 1px;
  text-decoration-color: var(--ink-faint);
}

.suggest:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

/* ---------- result card ---------- */

/* The result frame (top + bottom hairlines, inner padding) only earns
   its keep when there's actually something to frame. */
.result:not(:empty) {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 2.25rem 0;
  margin-top: 2rem;
}

.result__loading,
.result__empty {
  font-style: italic;
  color: var(--ink-soft);
  text-align: center;
  margin: 0;
}

.result__error {
  text-align: center;
  margin: 0;
}

.result__error-message {
  font-style: italic;
  color: var(--ink-soft);
  margin: 0 0 1rem;
}

.result__error-retry {
  font-family: var(--label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

.article__meta {
  font-family: var(--label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--ink-soft);
  margin: 0 0 0.85rem;
}

.article__meta-sep {
  display: inline-block;
  margin: 0 0.45em;
  color: var(--ink-faint);
}

.article__headline {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(2rem, 5.5vw, 2.8rem);
  line-height: 1.08;
  margin: 0 0 1.2rem;
  letter-spacing: -0.005em;
}

.article__clip {
  font-size: 1.05rem;
  line-height: 1.55;
  margin: 0 0 1.6rem;
  padding-left: 1rem;
  border-left: 2px solid var(--ink);
  color: var(--ink-soft);
  font-style: italic;
  white-space: pre-wrap;
}

.article__clip mark {
  background: transparent;
  color: var(--ink);
  font-weight: 600;
  font-style: normal;
}

.article__actions {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.article__link {
  font-family: var(--label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
  color: #1f3a5f;
  text-decoration: none;
  border-bottom: 1px solid #1f3a5f;
  padding-bottom: 2px;
}

.article__link:hover {
  border-bottom-width: 2px;
}

.article__share {
  font-family: var(--label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
  color: var(--ink-soft);
  background: none;
  border: none;
  border-bottom: 1px solid var(--ink-soft);
  padding: 0 0 2px;
  cursor: pointer;
}

.article__share:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
  border-bottom-width: 2px;
}

.article__share:disabled {
  cursor: default;
  color: var(--ink-faint);
  border-bottom-color: var(--ink-faint);
}

/* ---------- sparkline ---------- */

.sparkline {
  margin: 2rem 0 1.5rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 1rem 0;
}

.sparkline__label {
  font-family: var(--label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--ink-soft);
  margin: 0 0 0.6rem;
}

.sparkline__svg {
  width: 100%;
  height: 70px;
  display: block;
}

.sparkline__axis {
  font-family: var(--label);
  font-size: 0.7rem;
  color: var(--ink-faint);
  display: flex;
  justify-content: space-between;
  margin: 0.4rem 0 0;
  letter-spacing: 0.05em;
}

.sparkline__bar {
  fill: var(--ink);
  transition: fill-opacity 0.12s ease;
  cursor: default;
}

.sparkline__bar--first {
  fill: var(--accent);
}

.sparkline__bar--peak {
  fill: #a37a2e;
}

.sparkline__bar:hover {
  fill-opacity: 0.55;
}

.sparkline__caption {
  font-family: var(--label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  color: var(--ink-soft);
  text-align: center;
  margin: 0.55rem 0 0;
  font-feature-settings: "lnum" 1, "tnum" 1;
  min-height: 1em;
}

.sparkline__peak-label {
  font-family: var(--label);
  font-size: 0.7rem;
  fill: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---------- colophon ---------- */

.colophon {
  text-align: center;
  margin: 6.5rem 0 0;
}

.colophon p {
  font-family: var(--label);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  margin: 0;
}

.colophon__link {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-faint);
  padding-bottom: 1px;
}

.colophon__link:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

/* ---------- about page ---------- */

.masthead__home {
  color: inherit;
  text-decoration: none;
}

.about {
  margin: 3rem 0 2rem;
  font-family: var(--serif);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--ink);
}

.about p {
  margin: 0 0 1.1rem;
}

.about__heading {
  font-family: var(--label);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin: 2.2rem 0 0.6rem;
}

.about__heading:first-child {
  margin-top: 0;
}

.about__link {
  color: #1f3a5f;
  text-decoration: none;
  border-bottom: 1px solid #1f3a5f;
  padding-bottom: 1px;
}

.about__link:hover {
  border-bottom-width: 2px;
}

.about__back {
  margin-top: 2.5rem;
  font-family: var(--label);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.82rem;
}

/* ---------- focus mode ---------- */

/* When the user is typing, dim everything else so the input has full attention. */
.masthead,
.rule,
.result,
.colophon {
  transition: opacity 0.35s ease, filter 0.35s ease;
}

.page:has(.search__input:focus) .masthead,
.page:has(.search__input:focus) .rule,
.page:has(.search__input:focus) .result,
.page:has(.search__input:focus) .colophon {
  opacity: 0.18;
  filter: blur(1.5px);
}

/* ---------- typographic niceties ---------- */

/* Old-style figures for dates and the masthead edition line. */
.masthead__edition,
.article__meta,
.sparkline__axis {
  font-feature-settings: "lnum" 1, "tnum" 1;
}