/* ===========================================================================
   DesindaDev — shared stylesheet
   A devlog for a workshop building systems tools, frameworks and games.
   Direction: "amber notebook" — warm dark slate, single copper-amber accent,
   monospace display + readable serif body. Structure encodes chronology.
   =========================================================================== */

/* ---- Tokens ------------------------------------------------------------- */
:root {
  /* Color */
  --ink:        #14110d;   /* page background, near-black warm */
  --panel:      #1d1812;   /* raised surfaces */
  --panel-2:    #261f17;   /* hover / nested surfaces */
  --line:       #3a3026;   /* hairline borders */
  --paper:      #ece3d2;   /* primary text, warm off-white */
  --muted:      #9c8e78;   /* secondary text */
  --faint:      #6b5f4d;   /* tertiary / metadata */
  --amber:      #d9883f;   /* primary accent, CRT amber-copper */
  --amber-soft: #e8b27a;   /* lighter amber for hovers */
  --green:      #7fa86a;   /* "published" / success */
  --red:        #c2674f;   /* destructive */

  /* Type */
  --display: "Space Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --body:    "Newsreader", Georgia, "Times New Roman", serif;
  --ui:      ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Scale */
  --step--1: clamp(0.78rem, 0.74rem + 0.2vw, 0.86rem);
  --step-0:  clamp(1rem, 0.95rem + 0.25vw, 1.12rem);
  --step-1:  clamp(1.3rem, 1.2rem + 0.5vw, 1.6rem);
  --step-2:  clamp(1.7rem, 1.5rem + 1vw, 2.3rem);
  --step-3:  clamp(2.3rem, 1.9rem + 2vw, 3.6rem);

  /* Space */
  --gap:   1.25rem;
  --pad:   clamp(1.25rem, 5vw, 4rem);
  --radius: 4px;
  --maxw: 72rem;
  --readw: 42rem;
}

/* ---- Reset -------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
[x-cloak] { display: none !important; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
}

/* subtle grid texture, like engineering paper */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.07;
}
body > * { position: relative; z-index: 1; }

img { max-width: 100%; display: block; }
a { color: var(--amber); text-decoration: none; }
a:hover { color: var(--amber-soft); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- Layout helpers ----------------------------------------------------- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }
.read { max-width: var(--readw); margin-inline: auto; }
.stack > * + * { margin-top: var(--gap); }
.eyebrow {
  font-family: var(--display);
  font-size: var(--step--1);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
}
.muted { color: var(--muted); }
.mono { font-family: var(--display); }

/* ---- Masthead ----------------------------------------------------------- */
.masthead {
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklab, var(--ink) 85%, transparent);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}
.masthead__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap);
  padding-block: 0.9rem;
}
.brand {
  font-family: var(--display);
  font-weight: 700;
  font-size: var(--step-1);
  color: var(--paper);
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
}
.brand:hover { color: var(--paper); }
.brand b { color: var(--amber); }
.brand__logo {
  height: 1.5em;
  width: auto;
  align-self: center;
  margin-right: 0.6rem;
  display: block;
}
.brand .cursor {
  width: 0.6ch; height: 1.05em;
  background: var(--amber);
  display: inline-block;
  translate: 0 0.12em;
  animation: blink 1.1s steps(2, start) infinite;
}
@keyframes blink { to { opacity: 0; } }

.nav { display: flex; gap: 1.5rem; font-family: var(--display); font-size: var(--step--1); }
.nav a { color: var(--muted); letter-spacing: 0.02em; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--paper); }
.nav a[aria-current="page"] { border-bottom: 2px solid var(--amber); padding-bottom: 2px; }

.nav-toggle { display: none; background: none; border: 1px solid var(--line);
  color: var(--paper); font-family: var(--display); padding: 0.4rem 0.7rem;
  border-radius: var(--radius); cursor: pointer; }

@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .nav {
    position: absolute; inset: 100% 0 auto 0;
    flex-direction: column; gap: 0;
    background: var(--panel); border-bottom: 1px solid var(--line);
  }
  .nav a { padding: 1rem var(--pad); border-top: 1px solid var(--line); }
  .nav a[aria-current="page"] { border-bottom: none; }
}

/* ---- Hero --------------------------------------------------------------- */
.hero { padding-block: clamp(3rem, 10vw, 7rem) clamp(2rem, 6vw, 4rem); }
.hero__title {
  font-family: var(--display);
  font-weight: 700;
  font-size: var(--step-3);
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 18ch;
}
.hero__lede {
  font-size: var(--step-1);
  color: var(--muted);
  max-width: 48ch;
  margin-top: 1.5rem;
  font-style: italic;
}
.hero__meta {
  margin-top: 2rem;
  font-family: var(--display);
  font-size: var(--step--1);
  color: var(--faint);
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.hero__meta b { color: var(--amber); font-weight: 400; }

/* ---- Entry list (landing) ---------------------------------------------- */
.section-label {
  display: flex; align-items: center; gap: 1rem;
  margin-block: 3rem 1.5rem;
}
.section-label::after {
  content: ""; flex: 1; height: 1px; background: var(--line);
}

.entries { border-top: 1px solid var(--line); }
.entry {
  display: grid;
  grid-template-columns: 6rem 1fr auto;
  gap: 1.5rem;
  align-items: baseline;
  padding-block: 1.75rem;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease, padding-inline 0.2s ease;
}
.entry:hover {
  background: var(--panel);
  padding-inline: 1rem;
}
.entry__num {
  font-family: var(--display);
  color: var(--faint);
  font-size: var(--step--1);
  letter-spacing: 0.05em;
}
.entry__body { min-width: 0; }
.entry__title {
  font-family: var(--display);
  font-weight: 700;
  font-size: var(--step-1);
  line-height: 1.2;
  letter-spacing: -0.02em;
}
.entry__title a { color: var(--paper); }
.entry:hover .entry__title a { color: var(--amber); }
.entry__excerpt { color: var(--muted); margin-top: 0.4rem; max-width: 60ch; }
.entry__tags { margin-top: 0.7rem; display: flex; gap: 0.5rem; flex-wrap: wrap; }
.entry__date {
  font-family: var(--display);
  font-size: var(--step--1);
  color: var(--faint);
  white-space: nowrap;
}
.tag {
  font-family: var(--ui);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid var(--line);
  padding: 0.15rem 0.55rem;
  border-radius: 100px;
}

@media (max-width: 640px) {
  .entry { grid-template-columns: 1fr; gap: 0.5rem; }
  .entry__date { order: -1; }
}

/* ---- Article ------------------------------------------------------------ */
.article-head { padding-block: clamp(2.5rem, 8vw, 5rem) 2rem; }
.article-head .crumb {
  font-family: var(--display); font-size: var(--step--1);
  color: var(--faint); margin-bottom: 1.5rem;
}
.article-title {
  font-family: var(--display); font-weight: 700;
  font-size: var(--step-3); line-height: 1.08;
  letter-spacing: -0.03em; max-width: 22ch;
}
.article-meta {
  display: flex; gap: 1.25rem; flex-wrap: wrap; align-items: center;
  margin-top: 1.75rem; font-family: var(--display);
  font-size: var(--step--1); color: var(--faint);
}
.article-meta .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--faint); }

.prose { max-width: var(--readw); margin-inline: auto; padding-block: 1rem 4rem; }
.prose > * + * { margin-top: 1.5rem; }
.prose h2 {
  font-family: var(--display); font-weight: 700;
  font-size: var(--step-2); letter-spacing: -0.02em;
  margin-top: 3rem; line-height: 1.2;
}
.prose h3 {
  font-family: var(--display); font-weight: 700;
  font-size: var(--step-1); margin-top: 2.25rem;
}
.prose p { color: var(--paper); }
.prose a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--line); }
.prose a:hover { text-decoration-color: var(--amber); }
.prose blockquote {
  border-left: 3px solid var(--amber);
  padding-left: 1.25rem; color: var(--muted); font-style: italic;
}
.prose ul, .prose ol { padding-left: 1.5rem; color: var(--paper); }
.prose li + li { margin-top: 0.4rem; }
.prose code {
  font-family: var(--display); font-size: 0.88em;
  background: var(--panel); border: 1px solid var(--line);
  padding: 0.1rem 0.4rem; border-radius: var(--radius); color: var(--amber-soft);
}
.prose pre {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.25rem; overflow-x: auto;
  font-family: var(--display); font-size: var(--step--1); line-height: 1.6;
}
.prose pre code { background: none; border: none; padding: 0; color: var(--paper); }
.prose img { border: 1px solid var(--line); border-radius: var(--radius); }
.prose figcaption {
  font-family: var(--ui); font-size: var(--step--1);
  color: var(--faint); text-align: center; margin-top: 0.6rem;
}
.placeholder {
  border: 1px dashed var(--line); border-radius: var(--radius);
  padding: 2rem; text-align: center; color: var(--faint);
  font-family: var(--display); font-size: var(--step--1);
  background: var(--panel);
}

/* ---- Static page sections ---------------------------------------------- */
.page-head { padding-block: clamp(2.5rem, 8vw, 5rem) 1rem; }
.page-title {
  font-family: var(--display); font-weight: 700;
  font-size: var(--step-2); letter-spacing: -0.02em;
}
.block {
  border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--panel); padding: clamp(1.25rem, 4vw, 2.25rem);
}
.block + .block { margin-top: var(--gap); }
.block__label {
  font-family: var(--display); font-size: var(--step--1);
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--amber);
  margin-bottom: 0.75rem;
}
.embed {
  aspect-ratio: 16 / 9; display: grid; place-items: center;
  border: 1px dashed var(--line); border-radius: var(--radius);
  color: var(--faint); font-family: var(--display); font-size: var(--step--1);
  background: var(--panel-2);
}

/* ---- Footer ------------------------------------------------------------- */
.foot {
  border-top: 1px solid var(--line); margin-top: 4rem;
  padding-block: 2.5rem; color: var(--faint);
  font-family: var(--display); font-size: var(--step--1);
}
.foot__inner { display: flex; justify-content: space-between; gap: var(--gap); flex-wrap: wrap; }
.foot a { color: var(--muted); }
.foot a:hover { color: var(--paper); }

/* ---- Buttons ------------------------------------------------------------ */
.btn {
  font-family: var(--display); font-size: var(--step--1);
  letter-spacing: 0.03em; padding: 0.7rem 1.3rem;
  border-radius: var(--radius); border: 1px solid var(--amber);
  background: var(--amber); color: var(--ink);
  cursor: pointer; display: inline-flex; align-items: center; gap: 0.5rem;
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: var(--amber-soft); color: var(--ink); }
.btn--ghost { background: none; color: var(--paper); border-color: var(--line); }
.btn--ghost:hover { background: var(--panel); color: var(--paper); border-color: var(--muted); }
.btn--danger { background: none; border-color: var(--red); color: var(--red); }
.btn--danger:hover { background: var(--red); color: var(--ink); }