/* ==========================================================================
   Essentials article: /{slug} (inc/pages/page.essentials.php)
   Loaded only on essentials pages via $page_css. Every class is ess- prefixed
   and scoped to #essentialsPage, which also carries .mag-page so the shared
   article pieces (chips, share row, group titles, locked fade) keep working.
   Colours come from the tokens below; .dark #essentialsPage swaps them, so each
   colour, background and border rule has a dark value. The hero is a dark
   "stage" in both themes, with its own tokens and dark variants.
   ========================================================================== */

#essentialsPage {
  /* Section identity: essentials teal (light text-safe / dark-bg-safe shades) */
  --sec-accent: #0f766e;
  --mag-accent-dark: #2dd4bf;

  --ess-bg: #ffffff;
  --ess-ink: #0f172a;
  --ess-ink-2: #334155;
  --ess-ink-3: #64748b;
  --ess-line: #e2e8f0;
  --ess-surface: #ffffff;
  --ess-surface-2: #f8fafc;
  --ess-surface-hover: #f1f5f9;
  --ess-accent: #0f766e;
  --ess-accent-soft: #ccfbf1;
  --ess-accent-tint: #f0fdfa;
  --ess-shadow: 0 1px 2px rgba(15, 23, 42, .05), 0 8px 24px -12px rgba(15, 23, 42, .14);
  --ess-up: #047857;
  --ess-down: #b91c1c;
  --ess-note-bg: #fffbeb;
  --ess-note-line: #fde68a;
  --ess-note-ink: #78350f;
  --ess-logo-bg: #ffffff;

  /* Hero stage: dark in both themes */
  --ess-stage-bg: #0b1220;
  --ess-stage-ink: #ffffff;
  --ess-stage-ink-2: rgba(255, 255, 255, .82);
  --ess-stage-ink-3: rgba(255, 255, 255, .62);
  --ess-stage-line: rgba(255, 255, 255, .22);
  --ess-stage-kicker: #5eead4;
  --ess-stage-scrim: linear-gradient(to top, rgba(8, 13, 24, .96) 0%, rgba(8, 13, 24, .82) 34%, rgba(8, 13, 24, .38) 68%, rgba(8, 13, 24, .18) 100%);
  --ess-stage-edge: transparent;

  background: var(--ess-bg);
  color: var(--ess-ink);
}

.dark #essentialsPage {
  --ess-bg: #111111;
  --ess-ink: #f1f5f9;
  --ess-ink-2: #cbd5e1;
  --ess-ink-3: #94a3b8;
  --ess-line: rgba(148, 163, 184, .18);
  --ess-surface: #1a1a1a;
  --ess-surface-2: #161616;
  --ess-surface-hover: #222222;
  --ess-accent: #2dd4bf;
  --ess-accent-soft: rgba(45, 212, 191, .16);
  --ess-accent-tint: rgba(45, 212, 191, .06);
  --ess-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 8px 24px -12px rgba(0, 0, 0, .6);
  --ess-up: #34d399;
  --ess-down: #f87171;
  --ess-note-bg: rgba(245, 158, 11, .08);
  --ess-note-line: rgba(245, 158, 11, .3);
  --ess-note-ink: #fcd34d;
  --ess-logo-bg: #ffffff;

  --ess-stage-bg: #05080f;
  --ess-stage-ink: #f8fafc;
  --ess-stage-ink-2: rgba(248, 250, 252, .78);
  --ess-stage-ink-3: rgba(248, 250, 252, .58);
  --ess-stage-line: rgba(248, 250, 252, .18);
  --ess-stage-kicker: #5eead4;
  --ess-stage-scrim: linear-gradient(to top, #111111 0%, rgba(17, 17, 17, .86) 30%, rgba(5, 8, 15, .45) 66%, rgba(5, 8, 15, .25) 100%);
  --ess-stage-edge: rgba(248, 250, 252, .06);
}

/* Shared page gutter: the site's max-w-7xl (1400px, see input.css) + px-4/6/8 */
#essentialsPage .ess-wrap {
  width: 100%;
  max-width: 87.5rem;
  margin-inline: auto;
  padding-inline: 1rem;
}

@media (min-width: 640px) {
  #essentialsPage .ess-wrap { padding-inline: 1.5rem; }
}

@media (min-width: 1024px) {
  #essentialsPage .ess-wrap { padding-inline: 2rem; }
}

/* ===== Hero ===== */
#essentialsPage .ess-hero {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: clamp(30rem, 72vh, 44rem);
  overflow: hidden;
  background: var(--ess-stage-bg);
  color: var(--ess-stage-ink);
  border-bottom: 1px solid var(--ess-stage-edge);
}

#essentialsPage .ess-hero-img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#essentialsPage .ess-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--ess-stage-scrim);
}

#essentialsPage .ess-hero-inner {
  width: 100%;
  max-width: 87.5rem;
  margin-inline: auto;
  padding: 7rem 1rem 2.25rem;
}

@media (min-width: 640px) {
  #essentialsPage .ess-hero-inner { padding: 8rem 1.5rem 2.75rem; }
}

@media (min-width: 1024px) {
  #essentialsPage .ess-hero-inner { padding: 9rem 2rem 3.25rem; }
}

#essentialsPage .ess-crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1.1rem;
  font-size: calc(.8rem * var(--ggi-text-scale, 1));
  font-weight: 500;
  color: var(--ess-stage-ink-3);
}

#essentialsPage .ess-crumbs a {
  color: var(--ess-stage-ink-2);
  text-decoration: none;
}

#essentialsPage .ess-crumbs a:hover {
  color: var(--ess-stage-ink);
  text-decoration: underline;
}

#essentialsPage .ess-hero-kicker,
.dark #essentialsPage .ess-hero-kicker {
  color: var(--ess-stage-kicker);
}

#essentialsPage .ess-hero-kicker::before,
.dark #essentialsPage .ess-hero-kicker::before {
  background: var(--ess-stage-kicker);
}

#essentialsPage .ess-hero-title {
  margin-top: .7rem;
  max-width: 62rem;
  font-family: 'Outfit', ui-sans-serif, system-ui;
  font-weight: 800;
  font-size: calc(clamp(2.1rem, 5.4vw, 4.1rem) * var(--ggi-text-scale, 1));
  line-height: 1.04;
  letter-spacing: -.02em;
  overflow-wrap: break-word;
  text-wrap: balance;
  color: var(--ess-stage-ink);
}

#essentialsPage .ess-hero-standfirst {
  margin-top: 1.1rem;
  max-width: 48rem;
  font-size: calc(clamp(1.05rem, 1.7vw, 1.3rem) * var(--ggi-text-scale, 1));
  line-height: 1.55;
  color: var(--ess-stage-ink-2);
}

#essentialsPage .ess-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.75rem;
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--ess-stage-line);
}

#essentialsPage .ess-hero-author {
  display: flex;
  align-items: center;
  gap: .75rem;
  color: var(--ess-stage-ink);
  text-decoration: none;
}

#essentialsPage .ess-hero-author img {
  width: 2.75rem;
  height: 2.75rem;
  flex: none;
  border-radius: 9999px;
  object-fit: cover;
  box-shadow: 0 0 0 2px var(--ess-stage-line);
}

#essentialsPage .ess-hero-author-name {
  display: block;
  font-size: calc(.92rem * var(--ggi-text-scale, 1));
  font-weight: 700;
}

#essentialsPage .ess-hero-author:hover .ess-hero-author-name {
  text-decoration: underline;
}

#essentialsPage .ess-hero-author-role {
  display: block;
  font-size: calc(.75rem * var(--ggi-text-scale, 1));
  color: var(--ess-stage-ink-3);
}

#essentialsPage .ess-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: calc(.82rem * var(--ggi-text-scale, 1));
  font-weight: 500;
  color: var(--ess-stage-ink-2);
}

#essentialsPage .ess-hero-facts li + li::before {
  content: '·';
  margin: 0 .6rem;
  color: var(--ess-stage-ink-3);
}

/* ===== Toolbar: share + Summary Mode / Listen ===== */
#essentialsPage .ess-toolbar {
  border-bottom: 1px solid var(--ess-line);
  background: var(--ess-bg);
}

#essentialsPage .ess-toolbar .mag-share-row {
  padding-block: .85rem;
}

#essentialsPage .ess-tool-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  min-width: 0;
}

#essentialsPage .ess-pill {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  height: 2.5rem;
  padding: 0 .9rem 0 .4rem;
  border: 1px solid var(--ess-line);
  border-radius: 9999px;
  background: var(--ess-surface);
  font-size: calc(.85rem * var(--ggi-text-scale, 1));
  font-weight: 600;
  color: var(--ess-ink);
  text-decoration: none;
  cursor: pointer;
  transition: border-color .15s, background-color .15s;
}

#essentialsPage a.ess-pill:hover,
#essentialsPage .ess-pill--toggle:hover {
  border-color: var(--ess-accent);
}

#essentialsPage .ess-pill--toggle {
  padding: 0 .55rem 0 .95rem;
}

#essentialsPage .ess-pill--audio {
  flex: 1 1 12rem;
  gap: .5rem;
  padding: 0 .35rem;
}

/* sm+: one row next to the share buttons (fixed width, so the group's
   max-content size is known and it never wraps) */
@media (min-width: 640px) {
  #essentialsPage .ess-tool-group {
    flex-wrap: nowrap;
  }

  #essentialsPage .ess-pill--audio {
    flex: none;
    width: 15rem;
  }
}

#essentialsPage .ess-pill-icon {
  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  width: 1.85rem;
  height: 1.85rem;
  border: 0;
  border-radius: 9999px;
  background: #D52443;
  color: #fff;
  cursor: pointer;
}

#essentialsPage .ess-pill-icon--quiet {
  background: var(--ess-surface-hover);
  color: var(--ess-ink-2);
}

#essentialsPage .ess-audio-track {
  flex: 1;
  padding-block: .5rem;
  cursor: pointer;
}

#essentialsPage .ess-audio-rail {
  height: 5px;
  overflow: hidden;
  border-radius: 9999px;
  background: #f7d0d7;
}

.dark #essentialsPage .ess-audio-rail {
  background: #334155;
}

#essentialsPage .ess-audio-fill {
  height: 5px;
  border-radius: 9999px;
  background: #D52443;
}

/* ===== Body: contents rail + reading column ===== */
#essentialsPage .ess-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-content: center;
  padding-top: 2.25rem;
}

#essentialsPage .ess-main {
  min-width: 0;
  width: 100%;
  max-width: 50rem;
  margin-inline: auto;
}

@media (min-width: 1024px) {
  #essentialsPage .ess-layout--toc {
    grid-template-columns: 16rem minmax(0, 50rem);
    gap: 3.5rem;
  }

  #essentialsPage .ess-layout--toc .ess-main {
    margin-inline: 0;
  }
}

@media (min-width: 1280px) {
  #essentialsPage .ess-layout--toc {
    grid-template-columns: 18rem minmax(0, 50rem);
    gap: 5rem;
  }
}

/* Desktop rail */
#essentialsPage .ess-rail {
  display: none;
}

@media (min-width: 1024px) {
  #essentialsPage .ess-rail {
    display: block;
  }
}

#essentialsPage .ess-toc {
  position: sticky;
  top: 6rem;
  max-height: calc(100vh - 7.5rem);
  overflow-y: auto;
  padding-bottom: 1rem;
}

#essentialsPage .ess-toc-title,
#essentialsPage .ess-box-title {
  display: flex;
  align-items: center;
  gap: .45rem;
  margin: 0 0 .75rem;
  font-family: 'Outfit', ui-sans-serif, system-ui;
  font-size: calc(.72rem * var(--ggi-text-scale, 1));
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--ess-accent);
}

#essentialsPage .ess-toc-title::before,
#essentialsPage .ess-box-title::before {
  content: '';
  flex: none;
  width: 7px;
  height: 7px;
  background: var(--ess-accent);
}

#essentialsPage .ess-toc ol,
#essentialsPage .ess-toc-m ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

#essentialsPage .ess-toc a {
  display: flex;
  gap: .7rem;
  padding: .55rem 0 .55rem .85rem;
  border-left: 2px solid var(--ess-line);
  font-size: calc(.88rem * var(--ggi-text-scale, 1));
  font-weight: 500;
  line-height: 1.4;
  color: var(--ess-ink-3);
  text-decoration: none;
  transition: color .15s, border-color .15s;
}

#essentialsPage .ess-toc a:hover {
  color: var(--ess-ink);
}

#essentialsPage .ess-toc a[aria-current="true"] {
  border-left-color: var(--ess-accent);
  font-weight: 700;
  color: var(--ess-ink);
}

#essentialsPage .ess-toc-num {
  flex: none;
  font-family: 'Outfit', ui-sans-serif, system-ui;
  font-size: calc(.75rem * var(--ggi-text-scale, 1));
  font-weight: 800;
  line-height: 1.75;
  color: var(--ess-accent);
}

/* Mobile + tablet contents */
#essentialsPage .ess-toc-m {
  margin-bottom: 1.75rem;
  border: 1px solid var(--ess-line);
  border-radius: 1rem;
  background: var(--ess-surface-2);
}

@media (min-width: 1024px) {
  #essentialsPage .ess-toc-m {
    display: none;
  }
}

#essentialsPage .ess-toc-m summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .9rem 1.1rem;
  font-family: 'Outfit', ui-sans-serif, system-ui;
  font-size: calc(.78rem * var(--ggi-text-scale, 1));
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ess-accent);
  cursor: pointer;
  list-style: none;
}

#essentialsPage .ess-toc-m summary::-webkit-details-marker {
  display: none;
}

#essentialsPage .ess-toc-m summary::after {
  content: '';
  width: .5rem;
  height: .5rem;
  margin-left: auto;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform .15s;
}

#essentialsPage .ess-toc-m[open] summary::after {
  transform: rotate(-135deg) translateY(-2px);
}

#essentialsPage .ess-toc-m-count {
  font-family: Inter, ui-sans-serif, system-ui;
  font-size: calc(.75rem * var(--ggi-text-scale, 1));
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ess-ink-3);
}

#essentialsPage .ess-toc-m ol {
  padding: 0 .6rem .6rem;
}

#essentialsPage .ess-toc-m a {
  display: flex;
  gap: .7rem;
  padding: .6rem .5rem;
  border-top: 1px solid var(--ess-line);
  font-size: calc(.92rem * var(--ggi-text-scale, 1));
  font-weight: 500;
  line-height: 1.4;
  color: var(--ess-ink);
  text-decoration: none;
}

/* Reading column */
#essentialsPage .ess-prose {
  color: var(--ess-ink-2);
}

#essentialsPage .ess-prose h2 {
  scroll-margin-top: 6rem;
  margin-top: 2.6em;
  padding-top: 1.1rem;
  border-top: 1px solid var(--ess-line);
  font-family: 'Outfit', ui-sans-serif, system-ui;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ess-ink);
}

#essentialsPage .ess-prose h3 {
  scroll-margin-top: 6rem;
  color: var(--ess-ink);
}

#essentialsPage .ess-prose a {
  color: var(--ess-accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

#essentialsPage .ess-prose img {
  border-radius: .75rem;
}

html:has(#essentialsPage) {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html:has(#essentialsPage) {
    scroll-behavior: auto;
  }
}

/* Key points / good to know */
#essentialsPage .ess-keypoints {
  margin-bottom: 2rem;
  padding: 1.35rem 1.5rem;
  border: 1px solid var(--ess-accent-soft);
  border-left: 4px solid var(--ess-accent);
  border-radius: .9rem;
  background: var(--ess-accent-tint);
}

#essentialsPage .ess-keypoints ul {
  display: grid;
  gap: .7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

#essentialsPage .ess-keypoints li {
  position: relative;
  padding-left: 1.3rem;
  font-size: calc(1rem * var(--ggi-text-scale, 1));
  font-weight: 500;
  line-height: 1.55;
  color: var(--ess-ink);
}

#essentialsPage .ess-keypoints li::before {
  content: '';
  position: absolute;
  top: .55em;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--ess-accent);
}

#essentialsPage .ess-goodtoknow {
  margin-top: 2.25rem;
  padding: 1.35rem 1.5rem;
  border: 1px solid var(--ess-note-line);
  border-radius: .9rem;
  background: var(--ess-note-bg);
}

#essentialsPage .ess-goodtoknow .ess-box-title {
  color: var(--ess-note-ink);
}

#essentialsPage .ess-goodtoknow .ess-box-title::before {
  background: var(--ess-note-ink);
}

#essentialsPage .ess-goodtoknow p:not(.ess-box-title) {
  margin: .6rem 0 0;
  font-size: calc(.98rem * var(--ggi-text-scale, 1));
  font-weight: 500;
  line-height: 1.6;
  color: var(--ess-ink);
}

#essentialsPage .ess-tags {
  display: grid;
  gap: .75rem;
  margin-top: 2.5rem;
}

/* ===== Full-width sections below the body ===== */
#essentialsPage .ess-section {
  margin-top: 3.5rem;
}

#essentialsPage .ess-section > .mag-group-title {
  margin-bottom: 1rem;
}

/* Company / person / partner cards */
#essentialsPage .ess-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
  gap: .75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

#essentialsPage .ess-cards--compact {
  grid-template-columns: repeat(auto-fill, minmax(13.5rem, 1fr));
}

#essentialsPage .ess-card {
  display: flex;
  align-items: center;
  gap: .85rem;
  height: 100%;
  padding: .75rem .9rem;
  border: 1px solid var(--ess-line);
  border-radius: .9rem;
  background: var(--ess-surface);
  box-shadow: var(--ess-shadow);
  color: var(--ess-ink);
  text-decoration: none;
  transition: border-color .15s, background-color .15s;
}

#essentialsPage a.ess-card:hover {
  border-color: var(--ess-accent);
  background: var(--ess-surface-hover);
}

#essentialsPage .ess-card-logo {
  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  overflow: hidden;
  border: 1px solid var(--ess-line);
  border-radius: .6rem;
  background: var(--ess-logo-bg);
}

#essentialsPage .ess-card-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

#essentialsPage .ess-card-logo--person {
  border-radius: 9999px;
}

#essentialsPage .ess-card-logo--person img {
  object-fit: cover;
}

#essentialsPage .ess-card-text {
  min-width: 0;
  flex: 1;
}

#essentialsPage .ess-card-name {
  display: block;
  overflow: hidden;
  font-size: calc(.92rem * var(--ggi-text-scale, 1));
  font-weight: 700;
  line-height: 1.3;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#essentialsPage a.ess-card:hover .ess-card-name {
  text-decoration: underline;
}

#essentialsPage .ess-card-sub {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .4rem;
  margin-top: .15rem;
  font-size: calc(.76rem * var(--ggi-text-scale, 1));
  line-height: 1.35;
  color: var(--ess-ink-3);
}

#essentialsPage .ess-card-sub strong {
  font-weight: 700;
  color: var(--ess-ink);
}

#essentialsPage .ess-up {
  font-weight: 600;
  color: var(--ess-up);
}

#essentialsPage .ess-down {
  font-weight: 600;
  color: var(--ess-down);
}

#essentialsPage .ess-card-arrow {
  width: 1.1rem;
  height: 1.1rem;
  flex: none;
  color: var(--ess-ink-3);
}

#essentialsPage a.ess-card:hover .ess-card-arrow,
#essentialsPage .ess-linkedin:hover .ess-card-arrow {
  color: var(--ess-accent);
}

/* Reactions + LinkedIn | box ad */
#essentialsPage .ess-engage {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 1024px) {
  #essentialsPage .ess-engage {
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 3rem;
  }
}

#essentialsPage .ess-engage-ad:empty {
  display: none;
}

#essentialsPage .ess-linkedin {
  display: flex;
  align-items: center;
  gap: .85rem;
  margin-top: 1.5rem;
  padding: .75rem .9rem;
  border: 1px solid var(--ess-line);
  border-radius: .9rem;
  background: var(--ess-surface);
  box-shadow: var(--ess-shadow);
  font-size: calc(.9rem * var(--ggi-text-scale, 1));
  font-weight: 600;
  color: var(--ess-ink);
  text-decoration: none;
  transition: border-color .15s;
}

#essentialsPage .ess-linkedin:hover {
  border-color: #0A66C2;
}

.dark #essentialsPage .ess-linkedin:hover {
  border-color: #3b8de0;
}

#essentialsPage .ess-linkedin-logo {
  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: .6rem;
  background: var(--ess-logo-bg);
  border: 1px solid var(--ess-line);
}

#essentialsPage .ess-linkedin-logo img {
  width: 1.6rem;
  height: 1.6rem;
  object-fit: contain;
}

#essentialsPage .ess-linkedin-text {
  flex: 1;
}