@import url("https://fonts.googleapis.com/css2?family=Crimson+Pro:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Familjen+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@300;400;500&display=swap");

/* ─── Everforest Dark Tokens ────────────────────────────── */
:root {
  /* Backgrounds — from the Everforest palette */
  --bg0: #2d3130; /* hard bg */
  --bg1: #343f3e; /* main bg */
  --bg2: #3a4845; /* soft bg */
  --bg3: #445055; /* visual select */
  --bg4: #4c5a5a; /* grey-0 */
  --bg5: #596461; /* grey-1 */

  /* Foreground */
  --fg: #d3c6aa; /* main text */
  --fg-dim: #9da9a0; /* dimmed */
  --fg-muted: #5a6f68; /* muted */

  /* Everforest accent spectrum */
  --red: #e67e80;
  --orange: #e69875;
  --yellow: #dbbc7f;
  --green: #a7c080; /* primary accent */
  --aqua: #83c092;
  --blue: #7fbbb3;
  --purple: #d699b6;

  /* Semantic aliases */
  --accent: var(--green);
  --accent-2: var(--aqua);
  --accent-dim: rgba(167, 192, 128, 0.1);
  --accent-glow: rgba(167, 192, 128, 0.06);
  --warn: var(--yellow);
  --error: var(--red);

  /* Borders */
  --border: #404d49;
  --border-soft: rgba(167, 192, 128, 0.08);

  /* Typography */
  --serif: "Crimson Pro", Georgia, serif;
  --sans: "Familjen Grotesk", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;

  --radius: 4px;
  --max-w: 720px;
  --transition: 160ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ─── Reset ─────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}

/* ─── Body ──────────────────────────────────────────────── */
body {
  margin: 0;
  padding: 3.5rem 2rem 6rem;
  background-color: var(--bg1);
  background-image:
    radial-gradient(
      ellipse 90% 40% at 50% -10%,
      rgba(83, 192, 146, 0.04) 0%,
      transparent 65%
    ),
    url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23a7c080' fill-opacity='0.018'%3E%3Ccircle cx='1' cy='1' r='1'/%3E%3C/g%3E%3C/svg%3E");
  color: var(--fg);
  font-family: var(--serif);
  line-height: 1.82;
  font-size: 19px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body > * {
  max-width: var(--max-w);
  margin-left: auto;
  margin-right: auto;
}

/* ─── Headings ──────────────────────────────────────────── */
h1,
h2,
h3,
h4 {
  font-family: var(--sans);
  line-height: 1.18;
  letter-spacing: -0.02em;
  scroll-margin-top: 1.5rem;
}

h1 {
  font-size: clamp(2.1rem, 5vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--fg);
  /* Subtle green shimmer on the heading */
  text-shadow: 0 0 40px rgba(167, 192, 128, 0.18);
}

h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-top: 3.5rem;
  color: var(--aqua);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-top: 2.2rem;
  color: var(--yellow);
}

h4 {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fg-dim);
  margin-top: 1.8rem;
}

/* ─── Paragraphs ────────────────────────────────────────── */
p {
  margin: 1.35rem 0;
  color: var(--fg);
}

h1 + p {
  font-size: 1.06rem;
  color: #bfb99f;
  line-height: 1.88;
}

/* Drop cap */
h1 + p::first-letter {
  font-size: 3.4rem;
  font-style: italic;
  float: left;
  line-height: 0.82;
  margin: 0.1em 0.1em 0 0;
  color: var(--green);
}

/* ─── Meta / Byline ─────────────────────────────────────── */
.meta,
time,
.byline {
  display: block;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 2.6rem;
}

/* ─── Links ─────────────────────────────────────────────── */
a {
  color: var(--aqua);
  text-decoration-line: underline;
  text-decoration-color: rgba(131, 192, 146, 0.35);
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition:
    color var(--transition),
    text-decoration-color var(--transition);
}

a:hover {
  color: var(--green);
  text-decoration-color: var(--green);
}

/* ─── Lists ─────────────────────────────────────────────── */
ul,
ol {
  margin: 1.3rem 0;
  padding-left: 0;
  list-style: none;
}

ul li,
ol li {
  position: relative;
  padding-left: 1.6rem;
  margin: 0.5rem 0;
  color: var(--fg);
}

ul li::before {
  content: "◆";
  position: absolute;
  left: 0;
  font-size: 0.45rem;
  top: 0.6em;
  color: var(--green);
}

ol {
  counter-reset: ol-counter;
}
ol li {
  counter-increment: ol-counter;
}
ol li::before {
  content: counter(ol-counter, decimal-leading-zero);
  position: absolute;
  left: 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--fg-muted);
  top: 0.28em;
}

/* ─── Horizontal Rule ───────────────────────────────────── */
hr {
  border: none;
  margin: 3.5rem auto;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--border) 25%,
    var(--border) 75%,
    transparent
  );
  position: relative;
}

hr::after {
  content: "❧";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.8rem;
  color: var(--fg-muted);
  background: var(--bg1);
  padding: 0 0.6rem;
}

/* ─── Blockquote ────────────────────────────────────────── */
blockquote {
  margin: 2.5rem 0;
  padding: 1.2rem 1.6rem;
  background: var(--bg2);
  border-left: 3px solid var(--green);
  border-radius: 0 var(--radius) var(--radius) 0;
  position: relative;
}

blockquote::before {
  content: "\201C";
  font-family: var(--serif);
  font-size: 4rem;
  line-height: 1;
  color: var(--green);
  opacity: 0.25;
  position: absolute;
  top: 0.1rem;
  left: 1rem;
  pointer-events: none;
}

blockquote p {
  margin: 0;
  font-style: italic;
  font-size: 1.08rem;
  color: #c4bb9e;
  position: relative;
  z-index: 1;
}

blockquote cite {
  display: block;
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  color: var(--fg-muted);
  font-style: normal;
}

/* ─── Tables ────────────────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  font-size: 0.88rem;
  font-family: var(--mono);
  background: var(--bg2);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

thead {
  background: var(--bg3);
}

th {
  text-align: left;
  padding: 0.7rem 1rem;
  font-size: 0.67rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--aqua);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}

td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border-soft);
  color: var(--fg-dim);
}

tr:last-child td {
  border-bottom: none;
}
tbody tr:hover td {
  background: rgba(167, 192, 128, 0.04);
}

/* ─── Inline Code ───────────────────────────────────────── */
code {
  font-family: var(--mono);
  font-size: 0.82rem;
  background: var(--bg0);
  color: var(--orange);
  padding: 0.18rem 0.4rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  word-break: break-word;
}

/* ─── Code Blocks ───────────────────────────────────────── */
pre {
  background: var(--bg0);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  padding: 1.4rem 1.6rem;
  overflow-x: auto;
  border-radius: var(--radius);
  margin: 2rem 0;
  position: relative;
}

pre::before {
  content: attr(data-lang);
  position: absolute;
  top: 0.55rem;
  right: 0.85rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--fg);
  font-size: 0.87rem;
  line-height: 1.7;
}

/* Everforest syntax-flavoured spans (optional, use with a highlighter) */
pre .kw {
  color: var(--red);
}
pre .fn {
  color: var(--yellow);
}
pre .str {
  color: var(--green);
}
pre .num {
  color: var(--purple);
}
pre .cm {
  color: var(--fg-muted);
  font-style: italic;
}
pre .kv {
  color: var(--aqua);
}

/* ─── Images ────────────────────────────────────────────── */
img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin: 2.5rem auto;
}

figure {
  margin: 2.5rem 0;
}

figcaption {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--fg-muted);
  text-align: center;
  margin-top: 0.7rem;
  letter-spacing: 0.04em;
}

/* ─── Aside / Callout ───────────────────────────────────── */
aside,
.note,
.callout {
  background: var(--accent-dim);
  border: 1px solid rgba(167, 192, 128, 0.22);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin: 2rem 0;
  font-size: 0.9rem;
  color: var(--fg-dim);
}

aside strong,
.callout strong {
  font-family: var(--mono);
  font-size: 0.67rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green);
  display: block;
  margin-bottom: 0.35rem;
}

/* Variant callout types */
.callout.warn {
  background: rgba(219, 188, 127, 0.08);
  border-color: rgba(219, 188, 127, 0.25);
}
.callout.warn strong {
  color: var(--yellow);
}
.callout.error {
  background: rgba(230, 126, 128, 0.08);
  border-color: rgba(230, 126, 128, 0.25);
}
.callout.error strong {
  color: var(--red);
}
.callout.info {
  background: rgba(127, 187, 179, 0.08);
  border-color: rgba(127, 187, 179, 0.25);
}
.callout.info strong {
  color: var(--blue);
}

/* ─── Tags ───────────────────────────────────────────────── */
.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  padding: 0.22rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--fg-muted);
  margin-right: 0.4rem;
  text-decoration: none;
  transition: all var(--transition);
}

.tag:hover {
  border-color: var(--green);
  color: var(--green);
  background: var(--accent-dim);
  text-decoration: none;
}

/* ─── Navigation ─────────────────────────────────────────── */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0 3rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3.5rem;
}

nav .logo {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--fg);
  text-decoration: none;
}

nav .logo span {
  color: var(--green);
}

nav ul {
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

nav ul li {
  padding: 0;
  margin: 0;
}
nav ul li::before {
  display: none;
}

nav a {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  text-decoration: none;
  transition: color var(--transition);
}

nav a:hover {
  color: var(--aqua);
  text-decoration: none;
}

/* ─── Footer ─────────────────────────────────────────────── */
footer {
  margin-top: 5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ─── Reading Progress ───────────────────────────────────── */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--green), var(--aqua));
  z-index: 999;
  width: 0%;
  box-shadow: 0 0 10px var(--accent-glow);
  transition: width 0.1s linear;
}

/* ─── Selection ──────────────────────────────────────────── */
::selection {
  background: rgba(167, 192, 128, 0.22);
  color: var(--fg);
}

/* ─── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg0);
}
::-webkit-scrollbar-thumb {
  background: var(--bg4);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--fg-muted);
}

/* ─── Abbr ───────────────────────────────────────────────── */
abbr[title] {
  border-bottom: 1px dotted var(--fg-muted);
  cursor: help;
  text-decoration: none;
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 700px) {
  body {
    padding: 2rem 1.3rem 4rem;
    font-size: 17px;
  }
  h1 {
    font-size: 1.9rem;
  }
  h2 {
    font-size: 1.25rem;
  }
  nav ul {
    gap: 1.2rem;
  }
  nav {
    flex-wrap: wrap;
    gap: 0.8rem;
  }
  footer {
    flex-direction: column;
    text-align: center;
  }
}

/* ─── Focus Accessibility ─────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: var(--radius);
}