/* =================================================================
   base.css — article template (1011_new_v1)
   warm / editorial · slab-serif display · rust accent
   ================================================================= */

:root {
  --bg:        #faf7f2;
  --surface:   #ffffff;
  --surface-2: #f3ece2;
  --ink:       #1d1814;
  --muted:     #5c5249;
  --faint:     #938778;
  --line:      #e7ddcf;
  --line-2:    #d8ccba;

  --accent:    #c2410c;
  --accent-2:  #9a3412;
  --accent-3:  #fbe9dd;
  --on-accent: #ffffff;

  --ok:        #15924f;

  --r:         12px;
  --r-sm:      7px;
  --r-lg:      18px;

  --sh-1:      0 1px 2px rgba(29,24,20,.06);
  --sh-2:      0 14px 34px -16px rgba(29,24,20,.26);
  --sh-3:      0 30px 70px -22px rgba(29,24,20,.36);

  --wrap:      1120px;
  --col:       720px;

  --fh:        "Bitter", Georgia, "Times New Roman", serif;
  --fb:        "Mulish", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --fs-1:      .85rem;
  --fs0:       1rem;
  --fs1:       1.2rem;
  --fs2:       1.5rem;
  --fs3:       2rem;
  --fs4:       2.55rem;

  --tr:        .2s ease;
  --tr2:       .3s cubic-bezier(.4,0,.2,1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--fb);
  font-size: var(--fs0);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, video { max-width: 100%; height: auto; display: block; }
svg { fill: currentColor; }
a { color: var(--accent); text-decoration: none; transition: color var(--tr); }
a:hover { color: var(--accent-2); }
button { font-family: inherit; cursor: pointer; }

h1 { margin: 0 0 .5em; font-family: var(--fh); font-weight: 800; line-height: 1.18; letter-spacing: -.01em; color: var(--ink); }
p { margin: 0 0 1.1em; }
ul, ol { margin: 0 0 1.1em; padding-left: 1.35em; }

/* span-as-title (no secondary H tags in chrome) */
.nv-h {
  display: block;
  font-family: var(--fh);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--ink);
}

/* ---------- primitives ---------- */
.nv-shell { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2.2rem); }
.nv-col { max-width: var(--col); margin-inline: auto; }
.nv-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ---------- buttons ---------- */
.nv-btn {
  --b: var(--accent);
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .72em 1.4em;
  border: 1px solid var(--b); border-radius: var(--r-sm);
  background: var(--b); color: var(--on-accent);
  font-size: var(--fs-1); font-weight: 800; letter-spacing: .01em; line-height: 1;
  transition: background var(--tr), border-color var(--tr), color var(--tr), transform var(--tr);
}
.nv-btn:hover { background: var(--accent-2); border-color: var(--accent-2); color: var(--on-accent); transform: translateY(-1px); }
.nv-btn:active { transform: translateY(0); }
.nv-btn-ghost { background: transparent; color: var(--accent); }
.nv-btn-ghost:hover { background: var(--accent-3); color: var(--accent-2); }
.nv-btn-block { width: 100%; }
.nv-btn-icon { padding: 0; width: 2.85em; height: 2.85em; flex: none; }
.nv-btn-icon svg { width: 1.05em; height: 1.05em; }

/* =================================================================
   progress + skip
   ================================================================= */
.nv-progress { position: fixed; inset: 0 auto auto 0; height: 3px; width: 0; background: var(--accent); z-index: 1200; transition: width .1s linear; pointer-events: none; }
.nv-skip { position: fixed; top: -120%; left: 1rem; z-index: 1300; padding: .6em 1em; border-radius: var(--r-sm); background: var(--ink); color: #fff; }
.nv-skip:focus { top: 1rem; color: #fff; }

/* =================================================================
   header (minimal; content kept high)
   ================================================================= */
.nv-top { position: sticky; top: 0; z-index: 1000; background: color-mix(in srgb, var(--bg) 90%, transparent); backdrop-filter: saturate(140%) blur(8px); -webkit-backdrop-filter: saturate(140%) blur(8px); border-bottom: 1px solid var(--line); }
.nv-top-in { display: flex; align-items: center; gap: 1rem; min-height: 60px; }

.nv-brand { display: inline-flex; align-items: center; gap: .55rem; margin-right: auto; color: var(--ink); font-family: var(--fh); font-weight: 800; font-size: 1.12rem; letter-spacing: -.01em; }
.nv-brand:hover { color: var(--ink); }
.nv-brand img { width: 30px; height: 30px; border-radius: 8px; }

.nv-nav { display: flex; align-items: center; gap: 1.1rem; }
.nv-nav-list, .nv-access { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: .3rem; }
.nv-access { gap: .5rem; }

.nv-nav-link { display: inline-block; padding: .5em .8em; border-radius: var(--r-sm); color: var(--muted); font-size: var(--fs-1); font-weight: 700; transition: color var(--tr), background var(--tr); }
.nv-nav-link:hover { color: var(--ink); background: var(--surface-2); }
.nv-nav-item.on .nv-nav-link { color: var(--accent); background: var(--accent-3); }

.nv-access-link { padding: .5em .65em; color: var(--muted); font-weight: 700; font-size: var(--fs-1); }
.nv-access-link:hover { color: var(--ink); }

.nv-burger { display: none; flex: none; width: 44px; height: 44px; border: 1px solid var(--line-2); border-radius: var(--r-sm); background: transparent; padding: 0; position: relative; }
.nv-burger span, .nv-burger span::before, .nv-burger span::after { content: ""; position: absolute; left: 50%; width: 20px; height: 2px; background: var(--ink); border-radius: 2px; transform: translateX(-50%); transition: transform var(--tr2), top var(--tr2), opacity var(--tr); }
.nv-burger span { top: 50%; margin-top: -1px; }
.nv-burger span::before { top: -6px; }
.nv-burger span::after { top: 6px; }
.nv-burger[aria-expanded="true"] span { background: transparent; }
.nv-burger[aria-expanded="true"] span::before { top: 0; transform: translateX(-50%) rotate(45deg); }
.nv-burger[aria-expanded="true"] span::after { top: 0; transform: translateX(-50%) rotate(-45deg); }

/* =================================================================
   main + article (content first)
   ================================================================= */
.nv-main { padding-block: clamp(1.2rem, 3.5vw, 2.2rem) clamp(2.5rem, 6vw, 4rem); }

.nv-post { animation: nvrise .45s var(--tr2) both; }
@keyframes nvrise { from { opacity: 0; transform: translateY(9px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .nv-post { animation: none; } }

.nv-post-title { font-size: clamp(1.9rem, 1.2rem + 2.6vw, var(--fs4)); margin-bottom: .6rem; }

.nv-meta { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.2rem; font-size: var(--fs-1); color: var(--faint); margin-bottom: 1.9rem; }
.nv-meta-i { display: inline-flex; align-items: center; gap: .4rem; }
.nv-meta-i svg { width: 15px; height: 15px; opacity: .75; flex: none; }
.nv-meta-i time { font-style: normal; }

/* ---- article body (injected content) ---- */
.nv-body { font-size: 1.07rem; line-height: 1.78; color: #2a2118; }
.nv-body > :first-child { margin-top: 0; }
.nv-body h2 { font-family: var(--fh); font-weight: 800; letter-spacing: -.01em; font-size: clamp(1.5rem, 1.15rem + 1.2vw, var(--fs3)); margin: 2em 0 .55em; line-height: 1.22; }
.nv-body h3 { font-family: var(--fh); font-weight: 700; font-size: var(--fs1); margin: 1.6em 0 .45em; line-height: 1.25; }
.nv-body h4 { font-family: var(--fh); font-weight: 700; font-size: 1.08rem; margin: 1.4em 0 .4em; }
.nv-body p { margin: 0 0 1.25em; }
.nv-body a { color: var(--accent); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 2px; text-decoration-color: color-mix(in srgb, var(--accent) 42%, transparent); }
.nv-body a:hover { color: var(--accent-2); text-decoration-color: currentColor; }
.nv-body ul, .nv-body ol { margin: 0 0 1.25em; padding-left: 1.4em; }
.nv-body li { margin-bottom: .45em; }
.nv-body ul li::marker { color: var(--accent); }
.nv-body blockquote { margin: 1.7em 0; padding: .9em 1.3em; background: var(--surface-2); border-left: 4px solid var(--accent); border-radius: 0 var(--r-sm) var(--r-sm) 0; color: var(--muted); font-size: 1.12rem; font-style: italic; }
.nv-body blockquote :last-child { margin-bottom: 0; }
.nv-body img, .nv-body figure { margin: 1.7em 0; border-radius: var(--r); }
.nv-body img { box-shadow: var(--sh-1); }
.nv-body figure img { margin: 0; }
.nv-body figcaption { margin-top: .55em; font-size: var(--fs-1); color: var(--faint); text-align: center; }
.nv-body hr { border: 0; border-top: 1px solid var(--line); margin: 2.2em 0; }
.nv-body code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; background: var(--surface-2); border: 1px solid var(--line); border-radius: 5px; padding: .12em .4em; }
.nv-body pre { margin: 1.6em 0; padding: 1.1em 1.3em; background: #2a211a; color: #f3ece2; border-radius: var(--r-sm); overflow: auto; font-size: .92rem; line-height: 1.6; }
.nv-body pre code { background: none; border: 0; padding: 0; color: inherit; }
.nv-body table { width: 100%; margin: 1.7em 0; border-collapse: collapse; font-size: var(--fs-1); }
.nv-body th, .nv-body td { padding: .7em .9em; border: 1px solid var(--line); text-align: left; }
.nv-body thead th { background: var(--surface-2); font-weight: 700; }
.nv-body tbody tr:nth-child(even) { background: color-mix(in srgb, var(--surface-2) 55%, transparent); }

/* =================================================================
   TOC (auto)
   ================================================================= */
.nv-toc { margin: 1.8em 0 2.1em; background: var(--surface); border: 1px solid var(--line); border-radius: var(--r); box-shadow: var(--sh-1); padding: 1.05rem 1.35rem; }
.nv-toc-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: .45rem; }
.nv-toc-title { font-size: 1rem; }
.nv-toc-btn { border: 0; background: none; color: var(--accent); font-size: var(--fs-1); font-weight: 800; padding: .2em .3em; }
.nv-toc-btn:hover { color: var(--accent-2); }
.nv-toc-nav ol { margin: 0; padding-left: 1.25em; counter-reset: t; list-style: none; }
.nv-toc-nav li { margin: .28em 0; line-height: 1.45; position: relative; }
.nv-toc-nav li::before { counter-increment: t; content: counter(t) "."; position: absolute; left: -1.25em; color: var(--faint); font-size: .9em; }
.nv-toc-nav li.sub { margin-left: 1em; }
.nv-toc-nav li.sub::before { content: ""; }
.nv-toc-nav a { color: var(--muted); }
.nv-toc-nav a:hover, .nv-toc-nav a.on { color: var(--accent); }
.nv-toc-nav a.on { font-weight: 700; }
[id^="sec-"] { scroll-margin-top: 82px; }

/* =================================================================
   share (redrawn)
   ================================================================= */
.nv-share { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; margin: 2.3rem 0 0; padding-top: 1.5rem; border-top: 1px solid var(--line); }
.nv-share-label { font-weight: 800; font-size: var(--fs-1); color: var(--muted); }
.nv-share-list { display: flex; gap: .5rem; }
.nv-share-btn { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border: 1px solid var(--line-2); border-radius: 50%; background: transparent; color: var(--muted); transition: background var(--tr), color var(--tr), border-color var(--tr), transform var(--tr); }
.nv-share-btn svg { width: 17px; height: 17px; pointer-events: none; }
.nv-share-btn:hover { background: var(--accent); border-color: var(--accent); color: var(--on-accent); transform: translateY(-2px); }
.nv-share-btn.ok { background: var(--ok); border-color: var(--ok); color: #fff; }

/* =================================================================
   blocks below content (comment / contact)
   ================================================================= */
.nv-block { margin-top: 2.6rem; padding-top: 1.9rem; border-top: 1px solid var(--line); }
.nv-block-title { font-size: var(--fs2); margin-bottom: 1.2rem; }

.nv-form { width: 100%; }
.nv-row { display: flex; gap: 1rem; }
.nv-row > .nv-field { flex: 1; }
.nv-field { margin-bottom: 1rem; }
.nv-label { display: block; font-size: var(--fs-1); font-weight: 700; color: var(--muted); margin-bottom: .35rem; }
.nv-input { width: 100%; padding: .78em 1em; background: var(--surface); border: 1px solid var(--line-2); border-radius: var(--r-sm); color: var(--ink); font-family: inherit; font-size: var(--fs0); line-height: 1.4; transition: border-color var(--tr), box-shadow var(--tr); }
.nv-input::placeholder { color: var(--faint); }
.nv-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-3); }
textarea.nv-input { resize: vertical; min-height: 140px; }

/* newsletter accent band */
.nv-news { margin-top: 2.6rem; padding: clamp(1.6rem, 4vw, 2.4rem); background: var(--accent-3); border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent); border-radius: var(--r-lg); text-align: center; }
.nv-news-title { font-size: var(--fs2); margin-bottom: .35rem; }
.nv-news-text { font-size: var(--fs-1); color: var(--muted); margin: 0 auto 1.1rem; max-width: 44ch; }
.nv-news-form { display: flex; gap: .55rem; max-width: 440px; margin-inline: auto; }
.nv-news-form .nv-input { flex: 1; background: var(--surface); }

/* =================================================================
   footer (light — distinct)
   ================================================================= */
.nv-foot { background: var(--surface-2); border-top: 1px solid var(--line); margin-top: clamp(3rem, 8vw, 5rem); color: var(--muted); }
.nv-foot-in { display: flex; flex-wrap: wrap; align-items: center; gap: 1.3rem 2rem; padding-block: 2rem; }
.nv-foot .nv-brand { margin-right: 0; color: var(--ink); }

.nv-foot-nav { list-style: none; display: flex; flex-wrap: wrap; gap: .3rem 1.2rem; margin: 0 auto; padding: 0; }
.nv-foot-nav a { color: var(--muted); font-size: var(--fs-1); font-weight: 700; }
.nv-foot-nav a:hover { color: var(--accent); }

.nv-social { list-style: none; display: flex; gap: .5rem; margin: 0; padding: 0; }
.nv-social-link { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line-2); background: transparent; color: var(--muted); transition: background var(--tr), color var(--tr), border-color var(--tr), transform var(--tr); }
.nv-social-link svg { width: 16px; height: 16px; }
.nv-social-link:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-2px); }

.nv-copy { border-top: 1px solid var(--line); }
.nv-copy-in { padding-block: 1rem; font-size: var(--fs-1); color: var(--faint); }
.nv-copy-in .dib { display: inline-block; }

/* =================================================================
   back to top
   ================================================================= */
.nv-up { position: fixed; right: clamp(1rem, 3vw, 2rem); bottom: clamp(1rem, 3vw, 2rem); width: 46px; height: 46px; display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: var(--r-sm); background: var(--accent); color: #fff; box-shadow: var(--sh-2); opacity: 0; visibility: hidden; transform: translateY(12px); transition: opacity var(--tr2), transform var(--tr2), background var(--tr), visibility var(--tr2); z-index: 1100; }
.nv-up svg { width: 20px; height: 20px; }
.nv-up.show { opacity: 1; visibility: visible; transform: none; }
.nv-up:hover { background: var(--accent-2); transform: translateY(-3px); }

/* =================================================================
   cookie bar
   ================================================================= */
.nv-cookie { position: fixed; inset: auto 0 0 0; z-index: 1150; background: var(--ink); color: #efe7dc; box-shadow: 0 -10px 40px -16px rgba(0,0,0,.5); transform: translateY(110%); transition: transform var(--tr2); }
.nv-cookie.show { transform: none; }
.nv-cookie-in { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.35rem; padding-block: 1.05rem; }
.nv-cookie-text { margin: 0; font-size: var(--fs-1); line-height: 1.5; flex: 1 1 320px; }
.nv-cookie-text a { color: #f0a884; text-decoration: underline; }

/* =================================================================
   auth modals — pure CSS :target (HTML at the very bottom, opened via #)
   ================================================================= */
.nv-auth { position: fixed; inset: 0; z-index: 1400; display: grid; place-items: center; padding: 1.2rem; opacity: 0; visibility: hidden; pointer-events: none; transition: opacity var(--tr2), visibility var(--tr2); }
.nv-auth:target { opacity: 1; visibility: visible; pointer-events: auto; }
.nv-auth-overlay { position: absolute; inset: 0; display: block; background: rgba(20,15,10,.55); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); }
.nv-auth-card { position: relative; z-index: 1; width: 100%; max-width: 420px; background: var(--surface); border-radius: var(--r); box-shadow: var(--sh-3); padding: clamp(1.5rem, 4vw, 2.2rem); transform: translateY(14px) scale(.98); transition: transform var(--tr2); }
.nv-auth:target .nv-auth-card { transform: none; }
.nv-auth-x { position: absolute; top: .8rem; right: .8rem; width: 38px; height: 38px; border-radius: var(--r-sm); background: var(--surface-2); color: var(--muted); display: inline-flex; align-items: center; justify-content: center; transition: background var(--tr), color var(--tr); }
.nv-auth-x svg { width: 18px; height: 18px; }
.nv-auth-x:hover { background: var(--line); color: var(--ink); }
.nv-auth-title { font-size: var(--fs2); text-align: center; margin-bottom: 1.25rem; }
.nv-auth .nv-field:last-of-type { margin-bottom: 1.15rem; }
.nv-auth-row { display: flex; justify-content: space-between; gap: .8rem; font-size: var(--fs-1); margin-top: 1rem; }
.nv-auth-alt { margin-top: 1.05rem; text-align: center; font-size: var(--fs-1); color: var(--muted); }

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

/* =================================================================
   responsive
   ================================================================= */
@media (max-width: 820px) {
  .nv-nav { display: none; }
  .nv-burger { display: inline-flex; }
  .nv-nav.open {
    display: block; position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg); border-bottom: 1px solid var(--line); box-shadow: var(--sh-2);
    padding: .6rem clamp(1rem, 4vw, 2.2rem) 1.1rem;
  }
  .nv-nav.open .nv-nav-list { flex-direction: column; align-items: stretch; gap: .15rem; }
  .nv-nav.open .nv-nav-link { padding: .8em .6em; }
  .nv-nav.open .nv-access { flex-direction: column; align-items: stretch; gap: .5rem; margin-top: .7rem; padding-top: .8rem; border-top: 1px solid var(--line); }
  .nv-nav.open .nv-access-link { text-align: center; border: 1px solid var(--line-2); border-radius: var(--r-sm); padding: .7em; }
}

@media (max-width: 600px) {
  .nv-row { flex-direction: column; gap: 0; }
  .nv-news-form { flex-direction: column; }
  .nv-foot-in { flex-direction: column; align-items: flex-start; }
  .nv-foot-nav { margin-inline: 0; }
}

/* =================================================================
   print
   ================================================================= */
@media print {
  .nv-top, .nv-progress, .nv-share, .nv-up, .nv-cookie, .nv-news, .nv-block, .nv-auth, .nv-burger, .nv-foot .nv-social { display: none !important; }
  body { background: #fff; color: #000; }
  .nv-body a { text-decoration: underline; }
  .nv-body a[href^="http"]::after { content: " (" attr(href) ")"; font-size: .8em; color: #555; }
  .nv-toc { border: 1px solid #ccc; box-shadow: none; }
}