/* ==========================================================
 *   Het Rutul Joshi — Shilpa Shastra Blueprint
 *   ----------------------------------------------------------
 *   An architectural drafting aesthetic applied to a portfolio.
 *   The discipline: every plate sits on the same grid, every
 *   section ends with a title-block-derived rail, vermillion
 *   accent is reserved for italic emphasis and callouts only.
 *   ========================================================== */

/* ---- TOKENS -------------------------------------------- */
:root {
  /* Surfaces */
  --paper:     #F2EDDE;
  --paper-alt: #EEE9D8;
  --rail:      #E8E1CE;

  /* Ink */
  --ink:       #1E2B3C;
  --ink-88:    rgba(30, 43, 60, 0.88);
  --ink-70:    rgba(30, 43, 60, 0.70);
  --ink-55:    rgba(30, 43, 60, 0.55);
  --ink-40:    rgba(30, 43, 60, 0.40);
  --ink-25:    rgba(30, 43, 60, 0.25);
  --ink-20:    rgba(30, 43, 60, 0.20);
  --ink-12:    rgba(30, 43, 60, 0.12);

  /* Accent — sindoor vermillion */
  --accent:       #B8391C;
  --accent-soft:  rgba(184, 57, 28, 0.14);

  /* Typography */
  --font-serif: "Cormorant Garamond", Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  --font-mono:  "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;
  --font-deva:  "Tiro Devanagari Hindi", "Noto Serif Devanagari", var(--font-serif);

  /* Scale */
  --t-display: clamp(2rem, 6vw, 3.75rem);
  --t-h2:      clamp(1.5rem, 4vw, 2.375rem);
  --t-h3:      clamp(1.15rem, 2.2vw, 1.375rem);
  --t-h4:      1.0625rem;
  --t-lead:    clamp(1rem, 1.6vw, 1.1875rem);
  --t-body:    clamp(0.95rem, 1.4vw, 1.0625rem);
  --t-label:   0.6875rem;
  --ls-label:  0.14em;

  /* Layout */
  --max-width: 900px;
  --pad-x: clamp(18px, 4vw, 40px);
  --nav-h: 48px;

  /* Fluid portrait — keeps circular ratio, scales with viewport */
  --portrait-size: clamp(120px, 16vw, 200px);
  --portrait-col:  calc(var(--portrait-size) * 0.48);
  --title-indent:  calc(var(--portrait-size) * 0.5);
}

@media (max-width: 720px) {
  :root {
    --nav-h: 44px;
    --portrait-size: clamp(84px, 22vw, 120px);
    --portrait-col:  var(--portrait-size);
    --title-indent:  0px;
  }
}

@media (max-width: 380px) {
  :root {
    --portrait-size: clamp(72px, 26vw, 96px);
  }
}

/* ---- RESET --------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 8px);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}
body { margin: 0; overflow-x: clip; }
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; }

/* ---- BASE ---------------------------------------------- */
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: var(--t-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent-soft); color: var(--ink); }

/* ---- TYPOGRAPHY ---------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0;
}

h1 {
  font-size: var(--t-display);
  letter-spacing: -0.02em;
}

h2 { font-size: var(--t-h2); }
h3 { font-size: var(--t-h3); }
h4 { font-size: var(--t-h4); }

h1 em, h2 em, h3 em, h4 em {
  font-style: italic;
  color: var(--accent);
}

p { margin: 0; }
p + p { margin-top: 1rem; }

a {
  color: var(--ink);
  text-decoration-color: var(--ink-25);
  text-underline-offset: 3px;
  text-decoration-thickness: 0.5px;
  transition: text-decoration-color 0.18s ease, color 0.18s ease;
}
a:hover {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

.mono-label {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  line-height: 1.5;
}

.muted       { color: var(--ink-55); }
.accent-strong { color: var(--accent); }
.inline-em   { font-style: italic; color: var(--accent); font-weight: 500; }

.nav-deva {
  font-family: var(--font-deva);
  font-size: 12px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-70);
}

/* ---- NAV ----------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--ink-25);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
}
.nav-mark {
  display: inline-flex;
  gap: 10px;
  align-items: baseline;
  text-decoration: none;
}
.nav-plate { color: var(--accent); }
.nav-sep   { color: var(--ink-55); }
.nav-links {
  display: flex;
  gap: 18px;
  color: var(--ink-70);
}
.nav-links a {
  text-decoration: none;
}
.nav-links a:hover { color: var(--accent); }

@media (max-width: 720px) {
  .nav-inner { gap: 10px; }
  .nav-links {
    gap: 12px;
    overflow-x: auto;
    max-width: 65vw;
    scrollbar-width: none;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
  }
  .nav-links::-webkit-scrollbar { display: none; }
  .nav-deva { display: none; }
}

@media (max-width: 420px) {
  .nav-links { max-width: 58vw; gap: 10px; }
}

/* ---- PLATE BASE ---------------------------------------- */
.plate {
  position: relative;
  padding: clamp(32px, 5vw, 56px) 0;
}
.plate-alt { background: var(--paper-alt); }
.plate-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--pad-x);
  position: relative;
}

/* Blueprint grid — subtle dashed overlay on marked plates */
.gridded {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28'%3E%3Cpath d='M 28 0 L 0 0 0 28' fill='none' stroke='%231E2B3C' stroke-opacity='0.10' stroke-width='0.5' stroke-dasharray='2 3'/%3E%3C/svg%3E");
}

/* Plate rail — top-of-section identifier */
.plate-rail {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.rail-top { margin-bottom: clamp(24px, 3vw, 36px); }

/* ---- CHAPTER DIVIDER ----------------------------------- */
.chapter-divider {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.5vw, 14px);
  padding: clamp(14px, 2vw, 20px) var(--pad-x);
  background: var(--rail);
  border-top: 1px solid var(--ink-25);
  border-bottom: 1px solid var(--ink-25);
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  flex-wrap: wrap;
}
.chapter-divider .rule {
  flex: 1 1 60px;
  min-width: 30px;
  border-top: 1px solid var(--ink-25);
}

/* ---- HERO ---------------------------------------------- */
.plate-hero { padding-top: clamp(40px, 6vw, 64px); }

.hero-mark {
  display: grid;
  grid-template-columns: var(--portrait-col) minmax(0, 1fr);
  gap: clamp(14px, 2.4vw, 24px);
  align-items: center;
  margin-bottom: clamp(22px, 3vw, 32px);
}
.portrait {
  position: relative;
  width: var(--portrait-size);
  height: var(--portrait-size);
  flex-shrink: 0;
}
.portrait img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  aspect-ratio: 1 / 1;
  background: var(--rail);
  border: 1px dashed var(--ink-40);
}
.portrait-callout {
  position: absolute;
  bottom: calc(var(--portrait-size) * -0.03);
  right: calc(var(--portrait-size) * -0.11);
  width: calc(var(--portrait-size) * 0.2);
  height: auto;
  max-width: 40px;
}
.portrait-label {
  position: absolute;
  bottom: calc(var(--portrait-size) * -0.18);
  right: calc(var(--portrait-size) * -0.18);
  color: var(--accent);
  line-height: 1.3;
  margin-bottom: 5px;
  font-size: clamp(9px, 1.2vw, var(--t-label));
}

.hero-title {
  padding-left: var(--title-indent);
  min-width: 0;
}

.hero-title .mono-label { display: block; }
.hero-title .mono-label.muted { margin-bottom: 10px; }
.hero-title .hero-sub { margin-top: 12px; color: var(--ink-70); }

.lead {
  font-size: var(--t-lead);
  line-height: 1.55;
  max-width: 60ch;
  margin: 0 0 40px;
  color: var(--ink-88);
}

/* Stats row */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(140px, 100%), 1fr));
  gap: 1px;
  background: var(--ink-25);
  border: 1px solid var(--ink-25);
  margin: 0 0 clamp(28px, 4vw, 48px);
}
.stat {
  background: var(--paper);
  padding: clamp(14px, 2vw, 20px) clamp(12px, 1.8vw, 18px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  min-height: 100px;
  min-width: 0;
}
.stat-num {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(28px, 4.2vw, 40px);
  line-height: 1;
  color: var(--accent);
}
.stat-num.foss { font-size: clamp(22px, 3.2vw, 30px); letter-spacing: -0.01em; }
.stat-label {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--ink-70);
}

/* Hero bottom — shikhara + title block */
.hero-bottom {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, 220px);
  gap: clamp(18px, 2.4vw, 28px);
  align-items: end;
  margin-top: 24px;
}
.shikhara {
  width: 100%;
  max-width: 320px;
  height: auto;
}
.title-block {
  border: 1px solid var(--ink-40);
  background: var(--paper);
  min-width: 0;
}
.tb-row {
  display: grid;
  grid-template-columns: 88px 1fr;
  border-top: 1px solid var(--ink-25);
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: 0.06em;
}
.tb-row:first-child { border-top: none; }
.tb-row > div { padding: 7px 12px; }
.tb-row > div:first-child {
  border-right: 1px solid var(--ink-25);
  color: var(--ink-55);
  text-transform: uppercase;
}
.tb-row > div:last-child { text-transform: lowercase; }
.tb-row > div.accent-strong { color: var(--accent); text-transform: lowercase; }

/* SVG text in shikhara / schematics */
.svg-mono {
  font-family: var(--font-mono);
  font-size: 8px;
  fill: var(--ink);
}
.svg-mono.svg-accent, g.svg-accent text, .svg-accent { fill: var(--accent); }
.svg-mono.svg-muted { fill: var(--ink-55); }
.svg-serif {
  font-family: var(--font-serif);
  font-size: 13px;
  font-style: italic;
  fill: var(--ink);
}

/* ---- EPIGRAPH ------------------------------------------ */
.epigraph {
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 18px 22px;
  border-left: 1px solid var(--accent);
  color: var(--ink-70);
  font-style: italic;
  font-size: 1.0625rem;
}
.epigraph p { margin: 0; }
.epigraph cite {
  display: block;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: var(--t-label);
  font-style: normal;
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--ink-55);
}

/* ---- PROSE --------------------------------------------- */
.prose {
  max-width: 62ch;
  font-size: var(--t-lead);
  line-height: 1.7;
  color: var(--ink-88);
}
h2 + .prose { margin-top: 20px; }

/* ---- PILLARS ------------------------------------------- */
.pillars {
  margin-top: clamp(24px, 3vw, 36px);
}
.pillar-card {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: clamp(14px, 2.2vw, 24px);
  padding: clamp(18px, 2.4vw, 24px) 0;
  border-bottom: 1px solid var(--ink-25);
  align-items: flex-start;
}
.pillar-card:first-child { border-top: 1px solid var(--ink-25); }
.pillar-glyph svg {
  width: 48px;
  height: 120px;
  display: block;
}
.pillar-body .mono-label { display: block; margin-bottom: 4px; }
.pillar-body h3 {
  font-style: italic;
  margin-bottom: 4px;
}
.pillar-body .role { margin-bottom: 12px; }
.pillar-body p { margin: 0 0 12px; color: var(--ink-88); }
.pillar-links { font-family: var(--font-mono); font-size: var(--t-label); letter-spacing: var(--ls-label); text-transform: uppercase; }
.pillar-links a { color: var(--accent); text-decoration: none; }
.pillar-links a:hover { text-decoration: underline; text-underline-offset: 3px; }

.pillar-section {
  color: var(--ink-40);
  white-space: nowrap;
  padding-top: 6px;
}

@media (max-width: 560px) {
  .pillar-card {
    grid-template-columns: 1fr auto;
  }
  .pillar-glyph { display: none; }
}

/* ---- LEDGER LIST (honors, contact, future artifacts) --- */
/* A scaling index: no empty grid cells, appends cleanly,
 *   one visual grammar for any catalog of items. */
.ledger-list {
  list-style: none;
  padding: 0;
  margin: clamp(24px, 3vw, 32px) 0 0;
  border-top: 1px solid var(--ink-25);
}
.ledger-row {
  display: grid;
  grid-template-columns: 36px minmax(110px, 140px) minmax(0, 1fr) auto;
  gap: clamp(12px, 1.6vw, 20px);
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--ink-25);
  transition: background 0.18s ease;
}
.ledger-row.is-link {
  text-decoration: none;
  color: inherit;
}
.ledger-list li.ledger-row.is-link:hover,
.ledger-list a.ledger-row.is-link:hover { background: var(--paper-alt); }

.ledger-num {
  color: var(--accent);
  padding-top: 3px;
}
.ledger-type {
  color: var(--ink-55);
  padding-top: 3px;
}
.ledger-body { min-width: 0; }
.ledger-body h4 {
  font-style: italic;
  font-size: var(--t-h3);
  margin: -2px 0 4px;
  line-height: 1.2;
}
.ledger-body p {
  color: var(--ink-88);
  font-size: 1rem;
  line-height: 1.55;
  margin: 0;
}
.ledger-body p a {
  color: var(--accent);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  margin-left: 4px;
}
.ledger-body p a:hover { text-decoration: underline; text-underline-offset: 3px; }

.ledger-meta {
  color: var(--ink-55);
  padding-top: 3px;
  white-space: nowrap;
  text-align: right;
  align-self: start;
}
.ledger-meta.accent-strong { color: var(--accent); }

/* Compact variant — contact rows: one-line handle, no body paragraph */
.ledger-row-compact {
  align-items: center;
  padding: 14px 0;
}
.ledger-handle {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.2rem;
  line-height: 1.2;
  color: var(--ink);
  text-decoration: none;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color 0.18s ease;
}
.ledger-handle:hover { color: var(--accent); }

@media (max-width: 640px) {
  .ledger-row {
    grid-template-columns: 28px minmax(0, 1fr) auto;
    gap: 12px;
    row-gap: 6px;
  }
  .ledger-type {
    grid-column: 2;
    grid-row: 1;
    padding-top: 3px;
  }
  .ledger-body {
    grid-column: 2;
    grid-row: 2;
  }
  .ledger-meta {
    grid-column: 3;
    grid-row: 1;
  }
  .ledger-row-compact .ledger-type {
    grid-row: 1;
  }
  .ledger-row-compact .ledger-body,
  .ledger-row-compact .ledger-handle {
    grid-column: 2;
    grid-row: 2;
  }
  .ledger-handle { font-size: 1.05rem; }
}

/* ---- ARSENAL / DETAIL PLATE ---------------------------- */
.detail-plate {
  margin-top: clamp(24px, 3vw, 32px);
  background: var(--paper);
  border: 1px solid var(--ink-40);
  padding: clamp(20px, 3vw, 28px);
}
.detail-head,
.compact-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 10px;
}
.detail-head .mono-label,
.compact-head .mono-label { display: block; margin-bottom: 4px; }
.detail-head h3,
.compact-head h3 { font-style: italic; }

.detail-plate > p {
  color: var(--ink-88);
  max-width: 60ch;
  margin-bottom: 20px;
}

.schematic {
  margin: 24px 0 0;
  border: 1px solid var(--ink-40);
  background: var(--paper);
  padding: clamp(12px, 2vw, 18px);
  overflow: hidden;
}
.schematic-rail {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink-25);
  margin-bottom: 14px;
  color: var(--ink-55);
  flex-wrap: wrap;
}
.schematic svg {
  width: 100%;
  height: auto;
  max-width: 100%;
  overflow: visible;
}

.tb-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink-25);
  margin-top: 14px;
}
.tb-strip > div {
  padding: 10px 14px;
  border-right: 1px solid var(--ink-20);
}
.tb-strip > div:last-child { border-right: none; }
.tb-strip.small > div { padding: 8px 12px; }
.tb-key { color: var(--ink-55); margin-bottom: 4px; display: block; }
.tb-val {
  font-family: var(--font-mono);
  font-size: var(--t-label);
  letter-spacing: 0.06em;
  text-transform: lowercase;
}

.compact-plate {
  margin-top: 18px;
  border: 1px solid var(--ink-25);
  background: var(--paper);
  padding: 20px 22px;
}
.compact-plate > p {
  color: var(--ink-88);
  font-size: 1rem;
  line-height: 1.55;
  max-width: 60ch;
  margin: 8px 0 16px;
}
.compact-plate .tb-strip {
  border: 1px solid var(--ink-20);
  margin-top: 0;
}

@media (max-width: 560px) {
  .tb-strip {
    grid-template-columns: repeat(2, 1fr);
  }
  .tb-strip > div:nth-child(2) { border-right: none; }
  .tb-strip > div:nth-child(1),
  .tb-strip > div:nth-child(2) { border-bottom: 1px solid var(--ink-20); }
}

/* ---- HERO CONTACT STRIP -------------------------------- */
.hero-contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  margin-left: 10px;
  color: var(--ink-70);
}
.hero-contact a {
  color: var(--ink-70);
  text-decoration: none;
  transition: color 0.18s ease;
  border-bottom: 1px solid var(--ink-25);
  padding-bottom: 1px;
}
.hero-contact a:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.hero-contact .sep {
  color: var(--ink-40);
  user-select: none;
}

/* ---- CONVICTION DIAGRAM (PLATE 02) --------------------- */
.conviction-frame {
  margin: clamp(28px, 4vw, 40px) 0 0;
  border: 1px solid var(--ink-40);
  background: var(--paper);
  padding: clamp(18px, 3vw, 24px);
}
.conviction-frame figcaption.plate-rail {
  padding-bottom: 12px;
  border-bottom: 1px solid var(--ink-25);
  margin-bottom: 16px;
  color: var(--ink-55);
}
.conviction-diagram {
  width: 100%;
  height: auto;
  display: block;
}

/* ---- INLINE CODE (for SSHRead paths like /var/log) ----- */
code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 1px 5px;
  border-radius: 2px;
  letter-spacing: 0.01em;
}

/* ---- FOOTER COLOPHON ----------------------------------- */
.colophon {
  border-top: 1px solid var(--ink-25);
  padding: 18px 0;
}
.colophon-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---- RESPONSIVE REFINEMENTS ---------------------------- */

/* Tablet — portrait becomes its own row so overlap math stops being fragile */
@media (max-width: 860px) {
  .hero-title { padding-left: 0; }
}

@media (max-width: 720px) {
  .hero-bottom {
    grid-template-columns: minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }
  .shikhara { margin: 0 auto; }
  .title-block { max-width: 360px; width: 100%; }
  .plate-rail { flex-wrap: wrap; gap: 8px; }
  .detail-head, .compact-head { flex-direction: column; gap: 4px; }

  .hero-contact { margin-left: 0; row-gap: 6px; }
  .colophon-row { justify-content: flex-start; row-gap: 6px; }
  .lead { margin-bottom: clamp(24px, 4vw, 40px); }
}

@media (max-width: 560px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .epigraph { padding: 14px 16px; }
}

@media (max-width: 480px) {
  .stat-num { font-size: clamp(26px, 7vw, 34px); }
  .stat-num.foss { font-size: clamp(20px, 5.5vw, 24px); }
  .tb-row { grid-template-columns: 72px 1fr; }
  .tb-row > div { padding: 6px 10px; }

  .portrait-label {
    bottom: calc(var(--portrait-size) * -0.22);
    right: auto;
    left: calc(var(--portrait-size) * 0.1);
  }
}

@media (max-width: 380px) {
  .stats { grid-template-columns: minmax(0, 1fr); }
  .plate-rail { font-size: 10px; }
  .chapter-divider { font-size: 10px; }
  .ledger-body h4 { font-size: 1.15rem; }
}

/* Landscape phones — keep hero compact so the fold doesn't feel empty */
@media (max-height: 520px) and (orientation: landscape) {
  .plate-hero { padding-top: clamp(24px, 4vw, 40px); }
  .plate { padding: clamp(24px, 4vw, 40px) 0; }
}

/* Extra-wide — tighten rhythm but keep max-width capped for readability */
@media (min-width: 1280px) {
  :root { --max-width: 960px; }
}

/* Reduced motion — respect OS preference (script.js adds scroll reveals) */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---- ACTIVE NAV STATE (from script.js) ----------------- */
.nav-links a.is-active {
  color: var(--accent);
}