/* ============================================================
   Kerbside, a weekly journal of everyday city life
   Editorial system: DM Serif Display (display) + Literata (article body)
   + DM Sans (interface) + IBM Plex Mono (meta labels).
   One accent (vermilion, the color of municipal paint), sharp corners,
   newsprint rules. Light and dark themes via data-theme tokens.
   ============================================================ */

@font-face {
  font-family: 'DM Serif Display';
  src: url('assets/dm-serif.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Literata';
  src: url('assets/literata.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'DM Sans';
  src: url('assets/dm-sans.ttf') format('truetype');
  font-weight: 400;
  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;
  font-style: normal;
  font-display: swap;
}

/* ---------- tokens ---------- */

:root {
  color-scheme: light;
  --paper: #f6f4ee;
  --paper-raise: #fcfbf7;
  --ink: #1c1a15;
  --ink-soft: #57544b;
  --ink-faint: #6e6a5f;
  --accent: #bf3d13;
  --accent-ink: #ffffff;
  --hairline: rgba(28, 26, 21, 0.16);
  --hairline-strong: rgba(28, 26, 21, 0.38);
  --shadow: 0 28px 70px rgba(28, 26, 21, 0.16);
  --font-display: 'DM Serif Display', 'Iowan Old Style', Georgia, serif;
  --font-text: 'Literata', Georgia, 'Times New Roman', serif;
  --font-ui: 'DM Sans', 'Helvetica Neue', Arial, sans-serif;
  --font-meta: 'IBM Plex Mono', 'Courier New', monospace;
}

:root[data-theme='dark'] {
  color-scheme: dark;
  --paper: #171610;
  --paper-raise: #201f17;
  --ink: #ece9de;
  --ink-soft: #b3afa2;
  --ink-faint: #8a8679;
  --accent: #d85a2e;
  --accent-ink: #171610;
  --hairline: rgba(236, 233, 222, 0.15);
  --hairline-strong: rgba(236, 233, 222, 0.4);
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.55);
}

/* ---------- base ---------- */

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

html {
  scrollbar-gutter: stable;
}

html:has(dialog[open]) {
  overflow: hidden;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 100%;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

img {
  display: block;
  max-width: 100%;
  height: auto;
}

button {
  font: inherit;
  color: inherit;
}

.wrap {
  max-width: 72rem;
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4.5vw, 2.5rem);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  padding: 0.6rem 1rem;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  text-decoration: none;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0.75rem;
}

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

/* ---------- icons ---------- */

.icon {
  width: 1.05em;
  height: 1.05em;
  flex: none;
}

.icon-sun {
  display: none;
}

:root[data-theme='dark'] .icon-sun {
  display: block;
}

:root[data-theme='dark'] .icon-moon {
  display: none;
}

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

.masthead {
  border-bottom: 2px solid var(--ink);
}

.masthead-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.1rem 0.9rem;
}

.brand {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.4rem 1.5rem;
}

.wordmark {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 0.95;
  letter-spacing: -0.01em;
}

.wordmark-dot {
  color: var(--accent);
}

.tagline {
  margin: 0;
  font-family: var(--font-meta);
  font-size: 0.72rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.btn-theme {
  padding: 0.5rem 0.6rem;
}

/* ---------- toolbar ---------- */

search {
  display: block;
}

.toolbar {
  border-bottom: 1px solid var(--hairline);
  background: var(--paper);
}

.toolbar-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem 2rem;
  flex-wrap: wrap;
  padding-block: 0.9rem;
}

.controls {
  display: flex;
  align-items: flex-end;
  gap: 1.1rem 1.4rem;
  flex-wrap: wrap;
}

.control {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.control-label {
  font-family: var(--font-meta);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.search-box {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 15rem;
  flex: 1 1 15rem;
  padding: 0.45rem 0.75rem;
  background: var(--paper-raise);
  border: 1px solid var(--hairline-strong);
  color: var(--ink-soft);
  transition: border-color 0.2s ease;
}

.search-box:focus-within {
  border-color: var(--ink);
}

.search-box .icon {
  width: 1rem;
  height: 1rem;
}

#search-input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 0.95rem;
}

#search-input:focus {
  outline: none;
}

#search-input::placeholder {
  color: var(--ink-faint);
}

#search-input::-webkit-search-cancel-button {
  cursor: pointer;
}

#topic-select {
  appearance: none;
  min-width: 10.5rem;
  padding: 0.45rem 2.1rem 0.45rem 0.75rem;
  background-image: linear-gradient(45deg, transparent 49%, currentColor 51%),
    linear-gradient(-45deg, transparent 49%, currentColor 51%);
  background-size: 0.45rem 0.45rem;
  background-position: right 0.85rem center, right 1.25rem center;
  background-repeat: no-repeat;
  border: 1px solid var(--hairline-strong);
  background-color: var(--paper-raise);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color 0.2s ease;
}

#topic-select:hover {
  border-color: var(--ink);
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  background: var(--paper-raise);
  border: 1px solid var(--hairline-strong);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 0.92rem;
  line-height: 1.3;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease,
    transform 0.12s ease;
}

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

.btn:active {
  transform: translateY(1px);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
}

.btn-ghost:hover {
  border-color: var(--hairline-strong);
}

.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.btn-accent:hover {
  border-color: var(--accent);
  filter: brightness(1.08);
}

/* pressed-state toggles adopt the single accent */

.btn-toggle[aria-pressed='true'] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.toggle-count {
  font-family: var(--font-meta);
  font-size: 0.8rem;
  padding-inline: 0.1em;
}

.result-count {
  margin: 0;
  font-family: var(--font-meta);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  padding-bottom: 0.55rem;
}

/* ---------- story index ---------- */

.main {
  padding-block-end: 4rem;
}

.story {
  --i: 0;
}

.story-text {
  min-width: 0;
}

.story-heading {
  margin: 0;
}

.story-kicker {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.6rem;
  font-family: var(--font-meta);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.story-topic {
  padding: 0;
  border: 0;
  background: none;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  color: var(--accent);
  cursor: pointer;
  text-decoration: none;
}

.story-topic:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.saved-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--ink-soft);
}

.saved-mark .icon {
  width: 0.9rem;
  height: 0.9rem;
  fill: currentColor;
  stroke: none;
}

.story-headline {
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 400;
  color: var(--ink);
  cursor: pointer;
}

.story-headline:hover,
.story-headline:focus-visible {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 5px;
}

.story-summary {
  margin: 0.65rem 0 0;
  font-family: var(--font-ui);
  font-size: 0.98rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

.story-byline {
  margin: 0.8rem 0 0;
  font-family: var(--font-meta);
  font-size: 0.74rem;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
}

.story-media {
  overflow: hidden;
  border: 1px solid var(--hairline);
}

.story-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.story:hover .story-media img,
.story:focus-within .story-media img {
  transform: scale(1.025);
}

/* featured (lead) story: asymmetric split, text left, photo right */

.story-featured {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: center;
  padding-block: clamp(2rem, 5vw, 3.2rem) clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--hairline);
}

.story-featured .story-headline {
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
}

.story-featured .story-summary {
  font-size: 1.05rem;
  max-width: 55ch;
}

.story-featured .story-media {
  aspect-ratio: 4 / 3;
}

/* remaining stories: two-column index */

.story-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(2rem, 5vw, 4rem);
}

.story-index-entry {
  padding-block: clamp(1.6rem, 4vw, 2.4rem);
}

.story-index-entry .story-headline {
  font-size: clamp(1.25rem, 1.8vw, 1.5rem);
  line-height: 1.15;
}

.story-index-entry .story-media {
  aspect-ratio: 16 / 10;
  margin-bottom: 1rem;
}

.story-index-entry .story-summary {
  font-size: 0.94rem;
}

/* ---------- empty state ---------- */

.empty-state {
  padding-block: clamp(3rem, 9vw, 5.5rem);
  max-width: 38rem;
}

.empty-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.1;
}

.empty-text {
  margin: 0.9rem 0 1.6rem;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* ---------- reader dialog ---------- */

dialog {
  width: min(46rem, calc(100vw - 2.5rem));
  max-height: calc(100dvh - 3rem);
  margin: auto;
  padding: 0;
  border: 1px solid var(--hairline-strong);
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow);
  overflow-y: auto;
  overscroll-behavior: contain;
}

dialog::backdrop {
  background: rgba(15, 14, 10, 0.55);
}

.reader-bar {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem clamp(1.1rem, 4vw, 1.6rem);
  background: var(--paper);
  border-bottom: 1px solid var(--hairline);
}

.btn-save .save-label {
  display: inline-flex;
  align-items: center;
}

.btn-save[aria-pressed='true'] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}

.btn-save .icon {
  fill: none;
}

.btn-save[aria-pressed='true'] .icon {
  fill: currentColor;
}

.article {
  padding: clamp(1.8rem, 5vw, 3.2rem) clamp(1.1rem, 5vw, 3.2rem) clamp(1.5rem, 4vw, 2.5rem);
}

.article-kicker {
  margin: 0 0 1rem;
  font-family: var(--font-meta);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.article-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.9rem, 4.6vw, 2.8rem);
  line-height: 1.06;
  letter-spacing: -0.005em;
  text-wrap: balance;
}

.article-byline {
  margin: 1.1rem 0 0;
  font-family: var(--font-meta);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.article-figure {
  margin: 1.8rem 0 2.2rem;
}

.article-figure img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--hairline);
}

.article-figure figcaption {
  margin-top: 0.6rem;
  font-family: var(--font-meta);
  font-size: 0.72rem;
  color: var(--ink-soft);
}

.article-body {
  max-width: 62ch;
  font-family: var(--font-text);
  font-size: 1.13rem;
  line-height: 1.75;
}

.article-body p {
  margin: 0;
}

.article-body p + p {
  margin-top: 1.15em;
}

.article-body > p:first-child::first-letter {
  float: left;
  font-family: var(--font-display);
  font-size: 3.55em;
  line-height: 0.8;
  padding: 0.05em 0.14em 0 0;
  color: var(--accent);
}

.reader-nav {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem clamp(1.1rem, 4vw, 1.6rem) 1.25rem;
  border-top: 1px solid var(--hairline);
}

.reader-nav .btn {
  max-width: 48%;
  justify-content: flex-start;
  text-align: left;
}

.reader-nav .btn:last-child {
  margin-left: auto;
  text-align: right;
  flex-direction: row-reverse;
  justify-content: flex-end;
}

.reader-nav-label {
  display: block;
  font-family: var(--font-meta);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.reader-nav-title {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
}

/* ---------- footer ---------- */

.site-footer {
  border-top: 2px solid var(--ink);
  padding-block: 2rem 2.6rem;
}

.footer-brand {
  margin: 0;
  max-width: 58ch;
  font-family: var(--font-ui);
  font-size: 0.92rem;
  line-height: 1.55;
  color: var(--ink-soft);
}

.footer-note {
  margin: 0.9rem 0 1.6rem;
  max-width: 62ch;
  font-family: var(--font-meta);
  font-size: 0.74rem;
  line-height: 1.6;
  color: var(--ink-faint);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.75rem;
}

.footer-topic {
  padding: 0.25rem 0.1rem;
  background: none;
  border: 0;
  border-bottom: 1px solid transparent;
  font-family: var(--font-meta);
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  cursor: pointer;
}

.footer-topic:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- motion (MOTION_INTENSITY 4: quiet, purposeful) ---------- */

@media (prefers-reduced-motion: no-preference) {
  .story,
  .empty-state {
    animation: rise 0.55s cubic-bezier(0.16, 1, 0.3, 1) both;
    animation-delay: calc(var(--i, 0) * 60ms);
  }

  dialog[open] .article {
    animation: rise 0.4s cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  @keyframes rise {
    from {
      opacity: 0;
      transform: translateY(12px);
    }
  }
}

/* ---------- mobile (390 x 844) ---------- */

@media (max-width: 860px) {
  .story-featured {
    grid-template-columns: 1fr;
  }

  .story-featured .story-media {
    order: -1;
  }

  .story-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .masthead-row {
    align-items: center;
  }

  .brand {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.45rem;
  }

  .toolbar-row,
  .controls {
    align-items: stretch;
    flex-direction: column;
    gap: 0.9rem;
  }

  .control {
    width: 100%;
  }

  .search-box {
    min-width: 0;
  }

  #topic-select,
  #saved-toggle {
    width: 100%;
  }

  #saved-toggle {
    justify-content: center;
  }

  #search-input,
  #topic-select {
    font-size: 1rem;
  }

  .result-count {
    padding-bottom: 0;
  }

  dialog {
    width: 100vw;
    height: 100dvh;
    max-height: 100dvh;
    margin: 0;
    border-width: 0;
    border-top: 2px solid var(--accent);
  }

  .reader-nav {
    flex-direction: column;
  }

  .reader-nav .btn {
    max-width: none;
    text-align: left;
    flex-direction: row;
    justify-content: flex-start;
  }

  .reader-nav .btn:last-child {
    margin-left: 0;
  }

  .article-body {
    font-size: 1.05rem;
  }
}