/* Curbline: city journal.
   Design read: editorial/blog for general city readers, wire-desk /
   municipal-notice-board language. Dark ground, one signal-orange accent,
   condensed sans masthead, all-sharp corners. Dials: variance 6, motion 3,
   density 4. */

@font-face {
  font-family: "Oswald";
  src: url("assets/oswald.ttf") format("truetype");
  font-weight: 200 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "DM Sans";
  src: url("assets/dm-sans.ttf") format("truetype");
  font-weight: 100 1000;
  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;
}

:root {
  --ink: #15140f;
  --ink-2: #1c1a14;
  --ink-3: #242119;
  --paper: #f3efe4;
  --muted: rgba(243, 239, 228, 0.62);
  --line: rgba(243, 239, 228, 0.16);
  --line-strong: rgba(243, 239, 228, 0.42);
  --accent: #f2782e;
  --accent-ink: #17130c;
  --focus: #ffb27a;

  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "DM Sans", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

.skip-link {
  position: absolute;
  left: 0;
  top: -100%;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

@media (prefers-reduced-motion: no-preference) {
  .skip-link {
    transition: top 0.15s ease;
  }
}

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

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--ink);
  border-bottom: 1px solid var(--line);
  padding: 14px 24px;
}

.wordmark {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.wordmark-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--paper);
}

.wordmark-tagline {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ---------- Intro ---------- */

.intro {
  max-width: 1200px;
  margin: 0 auto;
  padding: 22px 24px 6px;
}

.intro p {
  max-width: 62ch;
  margin: 0;
  font-size: 18px;
  line-height: 1.5;
  color: var(--paper);
}

/* ---------- Controls ---------- */

.controls {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 18px;
  border-bottom: 1px solid var(--line);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-group label {
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

#search-input {
  width: 240px;
  max-width: 60vw;
  background: var(--ink-2);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 10px 12px;
}

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

#category-select {
  background: var(--ink-2);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  padding: 10px 32px 10px 12px;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 16px) 55%, calc(100% - 11px) 55%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  min-width: 160px;
}

#search-input:focus,
#category-select:focus {
  border-color: var(--accent);
}

.toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 11px 16px;
  cursor: pointer;
  height: 42px;
}

.toggle-btn .toggle-mark {
  width: 9px;
  height: 9px;
  border: 1px solid var(--muted);
  flex: none;
}

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

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

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

.result-count {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (prefers-reduced-motion: no-preference) {
  .toggle-btn,
  #search-input,
  #category-select {
    transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
  }
}

/* ---------- Story grid ---------- */

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.story-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px 28px;
}

.story-item {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.story-open {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  color: inherit;
  font: inherit;
  cursor: pointer;
}

.story-media {
  margin: 0 0 14px;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  position: relative;
  background: var(--ink-2);
}

.story-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08) brightness(0.88);
}

.story-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--accent);
  mix-blend-mode: color;
  opacity: 0.55;
}

@media (prefers-reduced-motion: no-preference) {
  .story-media img {
    transition: transform 0.35s ease;
  }
  .story-open:hover .story-media img,
  .story-open:focus-visible .story-media img {
    transform: scale(1.04);
  }
  .story-open:active {
    transform: scale(0.995);
  }
}

.story-meta-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.chip {
  font-family: var(--font-mono);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.meta-divider {
  width: 1px;
  height: 12px;
  background: var(--line-strong);
}

.story-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 21px;
  line-height: 1.25;
  margin: 0 0 8px;
  color: var(--paper);
}

.story-summary {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.55;
  color: rgba(243, 239, 228, 0.82);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.story-byline {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Lead story treatment */

.story-item.is-lead .story-title {
  font-size: 26px;
}

.story-item.is-lead .story-summary {
  font-size: 16.5px;
  -webkit-line-clamp: 4;
}

@media (min-width: 760px) {
  .story-item.is-lead {
    grid-column: 1 / -1;
  }
  .story-item.is-lead .story-open {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
    align-items: center;
  }
  .story-item.is-lead .story-media {
    margin: 0;
    aspect-ratio: 16 / 10;
  }
  .story-item.is-lead .story-title {
    font-size: 34px;
  }
  .story-item.is-lead .story-summary {
    font-size: 17px;
    -webkit-line-clamp: 5;
  }
}

/* ---------- Empty state ---------- */

.empty-state {
  border: 1px dashed var(--line-strong);
  padding: 48px 24px;
  text-align: center;
}

.empty-state p {
  margin: 0 0 16px;
  font-size: 17px;
  color: var(--paper);
}

#clear-filters {
  background: var(--accent);
  color: var(--accent-ink);
  border: 1px solid var(--accent);
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 11px 20px;
  cursor: pointer;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 24px 24px 40px;
}

.site-footer p {
  max-width: 1200px;
  margin: 0 auto;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.site-footer strong {
  color: var(--paper);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* ---------- Detail dialog ---------- */

.detail-dialog {
  position: fixed;
  inset: 0;
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  border: none;
  background: transparent;
  color: var(--paper);
}

.detail-dialog::backdrop {
  background: rgba(10, 9, 6, 0.78);
}

.detail-dialog[open] {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow-y: auto;
}

.detail-inner {
  background: var(--ink-2);
  border: 1px solid var(--line-strong);
  width: min(760px, 100%);
  min-height: 100%;
  margin: 0 auto;
}

@media (min-width: 760px) {
  .detail-dialog[open] {
    align-items: center;
    padding: 40px 24px;
  }
  .detail-inner {
    min-height: auto;
    max-height: 88vh;
    overflow-y: auto;
  }
}

.detail-topbar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
}

.text-btn {
  background: none;
  border: none;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  padding: 8px 4px;
}

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

.detail-article {
  padding: 8px 24px 48px;
  max-width: 720px;
  margin: 0 auto;
}

.detail-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 20px 0 14px;
}

.detail-title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1.12;
  margin: 0 0 14px;
  color: var(--paper);
}

.detail-byline {
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.detail-media {
  margin: 0 0 26px;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: var(--ink-3);
}

.detail-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(1) contrast(1.08) brightness(0.88);
}

.detail-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--accent);
  mix-blend-mode: color;
  opacity: 0.55;
}

.detail-body p {
  max-width: 66ch;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(243, 239, 228, 0.92);
  margin: 0 0 20px;
}

.detail-body p:last-child {
  margin-bottom: 0;
}

/* ---------- Mobile ---------- */

@media (max-width: 540px) {
  .site-header {
    padding: 12px 16px;
  }
  .wordmark-tagline {
    display: none;
  }
  .intro,
  .controls,
  main,
  .site-footer p {
    padding-left: 16px;
    padding-right: 16px;
  }
  .controls {
    flex-direction: column;
    align-items: stretch;
    gap: 14px;
  }
  #search-input {
    width: 100%;
    max-width: none;
  }
  .result-count {
    margin-left: 0;
  }
  .story-grid {
    grid-template-columns: 1fr;
  }
  .detail-article {
    padding: 4px 18px 40px;
  }
}