/* Design system aligned with serviceplan-agents.com / usecases.serviceplan-agents.com
   / trust.serviceplan-agents.com: LIGHT-dominant layout (light gray page,
   black Avenir type, white cards with soft shadows) with a DARK rounded
   block as the hero — square grid lines on dark, red/green radial glows,
   coral-red rectangular CTAs (no pills on primary actions), uppercase
   letter-spaced kickers. See src/static/trust/style.css for the sibling
   page this shares its token system with. */

@font-face {
  font-family: "Avenir";
  src: url("/changelog/fonts/AvenirLTProRoman.otf") format("opentype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Avenir";
  src: url("/changelog/fonts/AvenirLTProMedium.otf") format("opentype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Avenir";
  src: url("/changelog/fonts/AvenirLTProHeavy.otf") format("opentype");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Avenir";
  src: url("/changelog/fonts/AvenirLTProLight.otf") format("opentype");
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

:root {
  --red: #ff4b4f;
  --red-dark: #e03a36;
  --green: #8fc49f;
  --page: #f2f2f0;
  --ink: #111111;
  --text-2: #565656;
  --text-3: #8a8a8a;
  --card: #ffffff;
  --line: #e4e4e2;
  --dark: #141414;
  --dark-line: rgba(255, 255, 255, 0.07);
  --on-dark-2: #b9bbbe;
  --r-block: 28px;
  --r-card: 16px;
  --r-btn: 8px;
  --shadow-card: 0 8px 28px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 14px 34px rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Avenir", Arial, sans-serif;
  font-size: 15.5px;
  line-height: 1.6;
  background: var(--page);
  color: var(--ink);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--red);
  color: #fff;
}

a {
  color: inherit;
}

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

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
}

.kicker {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ---------- utility topbar (shared across public zone) ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 44px 0;
  max-width: 1120px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.brand {
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: 17px;
  text-decoration: none;
}

.brand em {
  color: var(--red);
  font-style: normal;
}

.utility-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 13.5px;
  font-weight: 500;
}

.utility-nav a {
  text-decoration: none;
  color: var(--text-2);
  opacity: 0.85;
}

.utility-nav a:hover,
.utility-nav a.current {
  color: var(--ink);
  opacity: 1;
}

.utility-nav .cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border-radius: var(--r-btn);
  background: var(--red);
  color: #fff;
  font-weight: 500;
}

.utility-nav .cta:hover {
  background: var(--red-dark);
  color: #fff;
}

/* ---------- hero (dark block, site signature) ---------- */

.dark-block {
  position: relative;
  background:
    linear-gradient(var(--dark-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--dark-line) 1px, transparent 1px),
    radial-gradient(560px 420px at 78% 20%, rgba(255, 75, 79, 0.32), transparent 70%),
    radial-gradient(480px 380px at 12% 85%, rgba(143, 196, 159, 0.16), transparent 70%),
    var(--dark);
  background-size: 56px 56px, 56px 56px, auto, auto, auto;
  border-radius: var(--r-block);
  color: #fff;
  overflow: hidden;
}

.dark-block .kicker {
  color: rgba(255, 255, 255, 0.55);
}

.hero {
  margin: 14px auto 0;
  max-width: 1120px;
  padding: 44px 44px 40px;
}

.hero h1 {
  font-size: clamp(32px, 4.6vw, 46px);
  line-height: 1.07;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-top: 14px;
}

.hero p {
  margin-top: 16px;
  font-size: 16.5px;
  color: var(--on-dark-2);
  max-width: 620px;
}

.hero-contact {
  margin-top: 22px;
  font-size: 14px;
}

.hero-contact a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- feed ---------- */

.feed {
  padding: 44px 44px 80px;
}

.entry {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 32px;
  padding: 36px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 20px;
}

.entry:first-child {
  border-top: none;
  padding-top: 8px;
}

.entry-date {
  position: sticky;
  top: 24px;
  align-self: start;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-3);
}

.entry-body {
  min-width: 0;
}

.tag {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: 99px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 10px;
}

.tag-new {
  background: rgba(255, 75, 79, 0.12);
  color: var(--red-dark);
}

.tag-improved {
  background: rgba(143, 196, 159, 0.22);
  color: #2c6e45;
}

.tag-fixed {
  background: var(--page);
  color: var(--text-2);
}

.entry-body h2 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

.entry-body h2 a {
  text-decoration: none;
  color: inherit;
}

.entry-image {
  width: 100%;
  border-radius: var(--r-card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  margin-bottom: 18px;
}

.entry-content {
  font-size: 15px;
  color: var(--text-2);
}

.entry-content p {
  margin-bottom: 14px;
}

.entry-content ul,
.entry-content ol {
  margin: 0 0 14px 20px;
}

.entry-content li {
  margin-bottom: 6px;
}

.entry-content strong {
  color: var(--ink);
  font-weight: 700;
}

.entry-content a {
  color: var(--red-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- minor changes accordion ---------- */

.minor-accordion {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--r-card);
  background: var(--card);
  overflow: hidden;
}

.minor-accordion summary {
  list-style: none;
  cursor: pointer;
  padding: 13px 18px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-2);
}

.minor-accordion summary::-webkit-details-marker {
  display: none;
}

.minor-accordion summary::before {
  content: "+";
  display: inline-block;
  margin-right: 8px;
  color: var(--red);
  font-weight: 800;
}

.minor-accordion[open] summary::before {
  content: "\2212";
}

.minor-content {
  padding: 0 18px 16px;
  font-size: 13.5px;
  color: var(--text-2);
}

.minor-content ul {
  margin-left: 18px;
}

.minor-content li {
  margin-bottom: 6px;
}

.minor-content strong {
  color: var(--ink);
}

.empty-state {
  padding: 60px 0;
  text-align: center;
  color: var(--text-3);
}

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

.footer {
  max-width: 1120px;
  margin: 20px auto 0;
  padding: 26px 44px 50px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-3);
  font-size: 13px;
  border-top: 1px solid var(--line);
}

.footer a {
  color: var(--text-2);
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (max-width: 720px) {
  .topbar,
  .hero,
  .feed,
  .footer {
    padding-left: 20px;
    padding-right: 20px;
  }
  .entry {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .entry-date {
    position: static;
  }
}