/* =====================================================================
   Katharos Technologies — design system
   One source of truth for colour, type, spacing and the shared chrome
   (header, footer, buttons) and every page template. Loaded last in
   _LayoutV3, on top of Bootstrap's grid and reboot only.

   Concept: "katharos" is Greek for clean. The brand removes noise —
   tangled processes, scattered data, unclear risk — and leaves signal.
   Cool mineral neutrals, one green that only marks what matters.

   The older template layers (style.css, premium*.css) are no longer
   loaded; they can be deleted from wwwroot once you are happy.
   ===================================================================== */

:root {
  /* Colour */
  --k-ink:      #102231;   /* headings, dark surfaces */
  --k-ink-2:    #1a3245;   /* raised dark surface */
  --k-slate:    #566673;   /* body copy, secondary text */
  --k-mist:     #dfe7e3;   /* rules, borders */
  --k-paper:    #f4f7f6;   /* quiet section background */
  --k-white:    #ffffff;
  --k-green:    #0a7f57;   /* accent on light (AA on white) */
  --k-signal:   #00a86b;   /* brand green, for marks and dark surfaces */
  --k-on-dark:  #c9d6d1;   /* body copy on ink */

  /* Theme-specific surfaces (overridden in dark mode below) */
  --k-header-bg: rgba(255,255,255,.86);
  --k-select:    #cdebdc;
  --k-danger:    #b42318;
  --k-danger-bg: #fdecea;
  --k-danger-ink:#8a1c13;
  --k-success-bg:#e6f4ee;
  --k-band:      #102231;   /* call-to-action band */
  --k-footer:    #0b1823;
  --k-cover:     #102231;   /* fallback article cover */
  --k-shadow:    rgba(16,34,49,.28);
  color-scheme: light;

  /* Type */
  --k-display: "Bricolage Grotesque", "IBM Plex Sans", system-ui, sans-serif;
  --k-body:    "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --k-fs-hero: clamp(2.6rem, 1.6rem + 4.2vw, 5rem);
  --k-fs-h2:   clamp(2rem, 1.5rem + 2vw, 3.1rem);
  --k-fs-h3:   1.375rem;
  --k-fs-lead: clamp(1.1rem, 1rem + .35vw, 1.3rem);
  --k-fs-body: 1.0625rem;
  --k-fs-sm:   .9375rem;

  /* Space — 8px scale */
  --k-s1: .5rem;  --k-s2: 1rem;  --k-s3: 1.5rem; --k-s4: 2rem;
  --k-s5: 3rem;   --k-s6: 4.5rem; --k-s7: 7rem;

  --k-section: clamp(4.5rem, 3rem + 6vw, 8.5rem);
  --k-radius: 10px;
  --k-radius-lg: 18px;
  --k-max: 1200px;

  --k-ease: cubic-bezier(.2, .7, .2, 1);
}

/* Dark theme: follows the system setting unless the visitor picked light,
   or applies when they explicitly picked dark with the header toggle. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --k-ink:       #e8efec;
    --k-ink-2:     #c9d6d1;
    --k-slate:     #9fb1aa;
    --k-mist:      #243641;
    --k-paper:     #0f1c25;
    --k-white:     #0a141b;
    --k-green:     #3fd39a;
    --k-signal:    #2fc489;
    --k-on-dark:   #c9d6d1;
    --k-header-bg: rgba(10,20,27,.82);
    --k-select:    #1d5a43;
    --k-danger:    #ff8f80;
    --k-danger-bg: #3a1714;
    --k-danger-ink:#ffc2ba;
    --k-success-bg:#0f3326;
    --k-band:      #13283a;
    --k-footer:    #060d12;
    --k-cover:     #13283a;
    --k-shadow:    rgba(0,0,0,.6);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --k-ink:       #e8efec;
  --k-ink-2:     #c9d6d1;
  --k-slate:     #9fb1aa;
  --k-mist:      #243641;
  --k-paper:     #0f1c25;
  --k-white:     #0a141b;
  --k-green:     #3fd39a;
  --k-signal:    #2fc489;
  --k-on-dark:   #c9d6d1;
  --k-header-bg: rgba(10,20,27,.82);
  --k-select:    #1d5a43;
  --k-danger:    #ff8f80;
  --k-danger-bg: #3a1714;
  --k-danger-ink:#ffc2ba;
  --k-success-bg:#0f3326;
  --k-band:      #13283a;
  --k-footer:    #060d12;
  --k-cover:     #13283a;
  --k-shadow:    rgba(0,0,0,.6);
  color-scheme: dark;
}

/* ---------------------------------------------------------------------
   Base (overrides the template + older layers)
   --------------------------------------------------------------------- */
body.k-site {
  font-family: var(--k-body) !important;
  font-size: var(--k-fs-body) !important;
  line-height: 1.65;
  color: var(--k-slate) !important;
  background: var(--k-white) !important;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.k-site ::selection { background: var(--k-select) !important; color: var(--k-ink) !important; }

.k-site *, .k-site *::before, .k-site *::after { box-sizing: border-box; }
.k-container { width: 100%; max-width: var(--k-max); margin: 0 auto; padding: 0 clamp(1rem, 4vw, 2rem); }

.k-display,
.k-site .k-h2,
.k-site .k-h3 {
  font-family: var(--k-display) !important;
  color: var(--k-ink);
  font-weight: 650;
  letter-spacing: -.025em;
  margin: 0;
}
.k-site .k-h2 { font-size: var(--k-fs-h2); line-height: 1.08; max-width: 20ch; }
.k-site .k-h3 { font-size: var(--k-fs-h3); line-height: 1.25; letter-spacing: -.01em; font-weight: 600; }
.k-lead { font-size: var(--k-fs-lead); line-height: 1.6; color: var(--k-slate); max-width: 58ch; margin: 0; }
.k-site p { max-width: 68ch; }

/* Element defaults — zero specificity so components always win */
:where(.k-site) :where(h1, h2, h3, h4, h5, h6) {
  font-family: var(--k-display); color: var(--k-ink); letter-spacing: -.02em; line-height: 1.2; font-weight: 600;
}
:where(.k-site) :where(a) { color: var(--k-green); }
:where(.k-site) :where(a:hover) { color: var(--k-ink); }
:where(.k-site) :where(img) { max-width: 100%; height: auto; }
:where(.k-site) :where(hr) { border: 0; border-top: 1px solid var(--k-mist); opacity: 1; margin: var(--k-s4) 0; }

.k-site a:focus-visible,
.k-site button:focus-visible,
.k-site input:focus-visible,
.k-site textarea:focus-visible {
  outline: 3px solid var(--k-signal) !important;
  outline-offset: 3px !important;
  border-radius: 4px;
}

.k-visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------------------------------------------------------------------
   Buttons
   --------------------------------------------------------------------- */
.k-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 48px; padding: 0 1.4rem;
  font: 600 1rem/1 var(--k-body) !important;
  border-radius: 999px; border: 1.5px solid transparent;
  text-decoration: none !important; cursor: pointer;
  transition: background-color .2s var(--k-ease), color .2s var(--k-ease), border-color .2s var(--k-ease);
  white-space: nowrap;
}
.k-btn--primary { background: var(--k-ink); color: var(--k-white) !important; }
.k-btn--primary:hover { background: var(--k-green); color: var(--k-white) !important; }
.k-btn--ghost { background: transparent; color: var(--k-ink) !important; border-color: var(--k-mist); }
.k-btn--ghost:hover { border-color: var(--k-ink); }
.k-btn--light { background: #fff; color: #102231 !important; }
.k-btn--light:hover { background: var(--k-signal); color: var(--k-white) !important; }
.k-btn--outline-light { background: transparent; color: #fff !important; border-color: rgba(255,255,255,.35); }
.k-btn--outline-light:hover { border-color: #fff; }
.k-btn--sm { min-height: 40px; padding: 0 1.1rem; font-size: .9375rem !important; }

.k-link {
  color: var(--k-green) !important; font-weight: 600; text-decoration: none !important;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1.5px no-repeat;
  transition: background-size .25s var(--k-ease);
}
.k-link:hover { background-size: 100% 1.5px; }

/* ---------------------------------------------------------------------
   Header
   --------------------------------------------------------------------- */
.k-header {
  position: sticky; top: 0; z-index: 1000;
  background: var(--k-header-bg);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s var(--k-ease);
}
.k-header.sticky { border-bottom-color: var(--k-mist); }
.k-header__bar { display: flex; align-items: center; gap: var(--k-s4); height: 76px; }
.k-header__logo { display: block; flex: none; }
.k-header__logo img { display: block; height: 30px; width: auto; }

.k-nav { margin-left: auto; }
.k-nav__list { display: flex; align-items: center; gap: .25rem; list-style: none; margin: 0; padding: 0; }
.k-nav__item { position: relative; }
.k-nav__link {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .6rem .85rem; border-radius: 8px;
  font: 500 .975rem/1 var(--k-body) !important;
  color: var(--k-ink) !important; text-decoration: none !important;
  background: none; border: 0; cursor: pointer;
}
.k-nav__link:hover,
.k-nav__link[aria-expanded="true"] { background: var(--k-paper); }
.k-nav__link[aria-current="page"], .k-nav__link.is-current { color: var(--k-green) !important; }
.k-nav__chev { width: 10px; height: 10px; transition: transform .2s var(--k-ease); }
.k-nav__link[aria-expanded="true"] .k-nav__chev { transform: rotate(180deg); }

/* Services panel */
.k-panel {
  position: absolute; top: calc(100% + 10px); left: 50%;
  width: min(760px, 92vw); transform: translate(-50%, 6px);
  background: var(--k-white); border: 1px solid var(--k-mist); border-radius: var(--k-radius-lg);
  box-shadow: 0 24px 60px -24px var(--k-shadow);
  padding: var(--k-s3);
  display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--k-s1) var(--k-s4);
  opacity: 0; visibility: hidden;
  transition: opacity .18s var(--k-ease), transform .18s var(--k-ease), visibility .18s;
}
.k-panel.is-open { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.k-panel__group h3 {
  font: 600 .8125rem/1.3 var(--k-body) !important; color: var(--k-slate) !important;
  margin: var(--k-s1) 0 .25rem; letter-spacing: .01em;
}
.k-panel__group ul { list-style: none; margin: 0; padding: 0; }
.k-panel__group a {
  display: block; padding: .5rem .6rem; margin: 0 -.6rem; border-radius: 8px;
  color: var(--k-ink) !important; font-weight: 500; text-decoration: none !important; font-size: .975rem;
}
.k-panel__group a:hover { background: var(--k-paper); color: var(--k-green) !important; }
.k-panel__foot {
  grid-column: 1 / -1; margin-top: var(--k-s2); padding-top: var(--k-s2);
  border-top: 1px solid var(--k-mist); display: flex; justify-content: space-between; align-items: center;
  font-size: var(--k-fs-sm);
}

.k-header__cta { flex: none; }
.k-burger {
  display: none; margin-left: auto;
  width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--k-mist);
  background: var(--k-white); align-items: center; justify-content: center; cursor: pointer;
}
.k-burger span, .k-burger span::before, .k-burger span::after {
  display: block; width: 18px; height: 1.5px; background: var(--k-ink); position: relative; content: "";
}
.k-burger span::before { position: absolute; top: -6px; }
.k-burger span::after  { position: absolute; top: 6px; }

/* Mobile drawer (Bootstrap offcanvas) */
.k-drawer.offcanvas { width: min(380px, 88vw); border: 0; background: var(--k-white); }
.k-drawer .offcanvas-header { padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--k-mist); }
.k-drawer .offcanvas-body { padding: 1rem 1.5rem 2rem; display: flex; flex-direction: column; gap: var(--k-s3); }
.k-drawer__close {
  width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--k-mist); background: none;
  font-size: 1.4rem; line-height: 1; color: var(--k-ink); cursor: pointer;
}
.k-drawer__list { list-style: none; margin: 0; padding: 0; }
.k-drawer__list > li > a {
  display: block; padding: .9rem 0; border-bottom: 1px solid var(--k-mist);
  font: 600 1.15rem/1.2 var(--k-display) !important; color: var(--k-ink) !important; text-decoration: none !important;
}
.k-drawer__sub { list-style: none; margin: .25rem 0 .75rem; padding: 0 0 0 .75rem; border-left: 2px solid var(--k-mist); }
.k-drawer__sub a { display: block; padding: .4rem 0; color: var(--k-slate) !important; text-decoration: none !important; font-size: .975rem; }
.k-drawer__label { font-size: .8125rem; color: var(--k-slate); margin: .9rem 0 .25rem; font-weight: 600; }

@media (max-width: 991.98px) {
  .k-nav, .k-header__cta { display: none; }
  .k-burger { display: inline-flex; }
  .k-header__bar { height: 66px; }
}

/* ---------------------------------------------------------------------
   Sections
   --------------------------------------------------------------------- */
.k-section { padding: var(--k-section) 0; }
.k-section--paper { background: var(--k-paper); }
.k-section__head { display: grid; gap: var(--k-s2); margin-bottom: var(--k-s6); }
.k-section__head--split {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); align-items: end; gap: var(--k-s5);
}
@media (max-width: 860px) { .k-section__head--split { grid-template-columns: 1fr; gap: var(--k-s2); } }

/* ---------------------------------------------------------------------
   Hero — the one bold moment: noise in, signal out
   --------------------------------------------------------------------- */
.k-hero { padding: clamp(3rem, 2rem + 5vw, 6.5rem) 0 clamp(3.5rem, 2rem + 5vw, 6rem); overflow: hidden; }
.k-hero__grid {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(2rem, 5vw, 5rem); align-items: center;
}
.k-hero__title {
  font-family: var(--k-display) !important;
  font-size: var(--k-fs-hero); line-height: .98; letter-spacing: -.045em;
  font-weight: 700; color: var(--k-ink); margin: 0 0 var(--k-s4);
  max-width: 13ch;
}
.k-hero__title span { display: block; color: var(--k-slate); font-weight: 500; }
.k-hero .k-lead { margin-bottom: var(--k-s4); }
.k-hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.k-hero__place { margin-top: var(--k-s4); font-size: var(--k-fs-sm); color: var(--k-slate); display: flex; align-items: center; gap: .6rem; }
.k-hero__place svg { flex: none; color: var(--k-green); }

.k-hero__visual { position: relative; margin: 0; }
.k-hero--page { padding-bottom: var(--k-s6); }
.k-hero--page .k-hero__title { max-width: 18ch; font-size: clamp(2.4rem, 1.6rem + 3.2vw, 4.2rem); }
.k-sig { width: 100%; height: auto; display: block; }
.k-sig__noise { fill: var(--k-slate); }
.k-sig__filter { stroke: var(--k-ink); stroke-width: 1.5; }
.k-sig__tick { stroke: var(--k-ink); stroke-width: 1.5; opacity: .35; }
.k-sig__rail { stroke: var(--k-mist); stroke-width: 1.5; }
.k-sig__clean { fill: var(--k-ink); }
.k-sig__clean--accent { fill: var(--k-signal); }
.k-hero__caption {
  display: flex; justify-content: space-between; margin-top: var(--k-s2);
  font-size: .8125rem; color: var(--k-slate);
  padding-top: .75rem; border-top: 1px solid var(--k-mist);
}

@media (prefers-reduced-motion: no-preference) {
  .k-sig__clean {
    opacity: 0; transform: translateX(-46px);
    animation: k-settle .7s var(--k-ease) forwards;
    animation-delay: calc(400ms + var(--i) * 28ms);
  }
  .k-sig__noise { animation: k-fade-in .9s ease-out both; }
}
@keyframes k-settle { to { opacity: 1; transform: none; } }
@keyframes k-fade-in { from { opacity: 0; } }

@media (max-width: 991.98px) {
  .k-hero__grid { grid-template-columns: 1fr; }
  .k-hero__visual { max-width: 520px; }
}

/* ---------------------------------------------------------------------
   Outcomes
   --------------------------------------------------------------------- */
.k-outcomes { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--k-ink); }
.k-outcome { padding: var(--k-s4) var(--k-s4) 0 0; }
.k-outcome + .k-outcome { padding-left: var(--k-s4); border-left: 1px solid var(--k-mist); }
.k-outcome .k-h3 { margin-bottom: .75rem; }
.k-outcome p { margin: 0; }
@media (max-width: 860px) {
  .k-outcomes { grid-template-columns: 1fr; }
  .k-outcome, .k-outcome + .k-outcome { padding: var(--k-s3) 0; border-left: 0; border-bottom: 1px solid var(--k-mist); }
}

/* ---------------------------------------------------------------------
   Services — pillars as rows, not identical cards
   --------------------------------------------------------------------- */
.k-pillars { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--k-mist); }
.k-pillar {
  display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.2fr) minmax(0, 1fr);
  gap: var(--k-s4); padding: var(--k-s4) 0; border-bottom: 1px solid var(--k-mist);
  align-items: start;
}
.k-pillar p { margin: 0; }
.k-pillar__links { list-style: none; margin: 0; padding: 0; display: grid; gap: .35rem; }
.k-pillar__links a {
  display: inline-flex; align-items: center; gap: .5rem;
  color: var(--k-ink) !important; font-weight: 500; text-decoration: none !important;
}
.k-pillar__links a::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--k-signal); flex: none;
}
.k-pillar__links a:hover { color: var(--k-green) !important; text-decoration: underline !important; text-underline-offset: 3px; }
@media (max-width: 860px) { .k-pillar { grid-template-columns: 1fr; gap: var(--k-s2); } }

/* ---------------------------------------------------------------------
   Process — a real sequence, so it is numbered
   --------------------------------------------------------------------- */
.k-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--k-s3); counter-reset: k-step; }
.k-step { counter-increment: k-step; position: relative; padding-top: var(--k-s5); }
.k-step::before {
  content: counter(k-step);
  position: absolute; top: 0; left: 0;
  width: 2.25rem; height: 2.25rem; border-radius: 50%;
  display: grid; place-items: center;
  font: 600 .95rem/1 var(--k-display);
  color: var(--k-ink); background: var(--k-white); border: 1.5px solid var(--k-ink);
  z-index: 1;
}
.k-step::after {
  content: ""; position: absolute; top: 1.125rem; left: 2.25rem; right: calc(-1 * var(--k-s3));
  height: 1.5px; background: var(--k-mist);
}
.k-step:last-child::after { display: none; }
.k-step .k-h3 { margin-bottom: .5rem; }
.k-step p { margin: 0; font-size: var(--k-fs-sm); }
@media (max-width: 991.98px) { .k-steps { grid-template-columns: repeat(2, 1fr); row-gap: var(--k-s5); } .k-step:nth-child(2)::after { display: none; } }
@media (max-width: 560px)   { .k-steps { grid-template-columns: 1fr; } .k-step::after { display: none; } }

/* ---------------------------------------------------------------------
   About / principles
   --------------------------------------------------------------------- */
.k-about { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.k-about__word {
  font-family: var(--k-display) !important; font-weight: 700;
  font-size: clamp(3.4rem, 2rem + 6vw, 7rem); line-height: .9; letter-spacing: -.05em;
  color: var(--k-ink); margin: 0 0 var(--k-s3);
}
.k-about__gloss { font-size: var(--k-fs-lead); color: var(--k-slate); margin: 0 0 var(--k-s3); }
.k-about__gloss em { font-style: normal; color: var(--k-green); font-weight: 600; }
.k-principles { margin: 0; display: grid; gap: var(--k-s3); }
.k-principles div { padding-bottom: var(--k-s3); border-bottom: 1px solid var(--k-mist); }
.k-principles dt { font: 600 1.125rem/1.3 var(--k-display) !important; color: var(--k-ink); margin-bottom: .35rem; }
.k-principles dd { margin: 0; }
@media (max-width: 860px) { .k-about { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------------
   Insights strip
   --------------------------------------------------------------------- */
.k-section--tight { padding: var(--k-s6) 0; }
.k-insights {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--k-s3);
  padding: var(--k-s4) 0; border-top: 1px solid var(--k-mist); border-bottom: 1px solid var(--k-mist);
}
.k-insights .k-h3 { margin-bottom: .25rem; }
.k-insights p { margin: 0; }

/* ---------------------------------------------------------------------
   CTA band
   --------------------------------------------------------------------- */
.k-cta { background: var(--k-band); color: var(--k-on-dark); padding: var(--k-section) 0; }
.k-cta__grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: var(--k-s5); align-items: end; }
.k-cta .k-h2 { color: #fff; max-width: 16ch; margin-bottom: var(--k-s3); }
.k-cta p { color: var(--k-on-dark); margin: 0; }
.k-cta__actions { display: flex; flex-direction: column; gap: .75rem; align-items: flex-start; }
.k-cta__phone { color: var(--k-on-dark) !important; text-decoration: none !important; font-size: var(--k-fs-sm); margin-top: .5rem; }
.k-cta__phone strong { color: #fff; font-weight: 600; }
@media (max-width: 860px) { .k-cta__grid { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------- */
.k-footer { background: var(--k-footer); color: var(--k-on-dark); padding: var(--k-s6) 0 var(--k-s3); font-size: var(--k-fs-sm); }
.k-footer__grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr)); gap: var(--k-s4); }
.k-footer__brand img { height: 30px; width: auto; margin-bottom: var(--k-s2); }
.k-footer__brand p { color: var(--k-on-dark); max-width: 34ch; margin: 0; }
.k-footer h2 { font: 600 .9375rem/1.3 var(--k-body) !important; color: #fff !important; margin: 0 0 var(--k-s2); }
.k-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.k-footer a { color: var(--k-on-dark) !important; text-decoration: none !important; }
.k-footer a:hover { color: #fff !important; text-decoration: underline !important; text-underline-offset: 3px; }
.k-footer__base {
  margin-top: var(--k-s5); padding-top: var(--k-s3); border-top: 1px solid rgba(255,255,255,.1);
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--k-s2); color: #8ea1ab;
}
.k-footer__base p { margin: 0; }
.k-footer__base ul { display: flex; gap: var(--k-s3); }
@media (max-width: 860px) { .k-footer__grid { grid-template-columns: 1fr 1fr; } .k-footer__brand { grid-column: 1 / -1; } }
@media (max-width: 480px) { .k-footer__grid { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------------
   Contact form
   --------------------------------------------------------------------- */
.k-form { display: grid; grid-template-columns: 1fr 1fr; gap: var(--k-s3) var(--k-s2); }
.k-form__field { display: grid; gap: .4rem; }
.k-form__field--full { grid-column: 1 / -1; }
.k-form label { font-weight: 600; color: var(--k-ink); font-size: var(--k-fs-sm); }
.k-form label small { font-weight: 400; color: var(--k-slate); }
.k-form input,
.k-form textarea {
  width: 100%; min-height: 50px; padding: .75rem 1rem;
  font: 400 1rem/1.5 var(--k-body) !important; color: var(--k-ink) !important;
  background: var(--k-white) !important; border: 1.5px solid var(--k-mist) !important; border-radius: var(--k-radius) !important;
  transition: border-color .2s var(--k-ease);
}
.k-form textarea { min-height: 150px; resize: vertical; }
.k-form input:focus, .k-form textarea:focus { border-color: var(--k-ink) !important; outline: none; }
.k-form [aria-invalid="true"] { border-color: var(--k-danger) !important; }
.k-form__error { color: var(--k-danger); font-size: .875rem; min-height: 1.2em; }
.k-form__actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: var(--k-s2); }
.k-form__status { font-size: var(--k-fs-sm); }
.k-form__status.is-success { color: var(--k-green); font-weight: 600; }
.k-form__status.is-error { color: var(--k-danger); font-weight: 600; }
@media (max-width: 640px) { .k-form { grid-template-columns: 1fr; } }

/* Contact page layout */
.k-contact { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.4fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.k-contact__aside .k-h3 { margin-bottom: var(--k-s2); }
.k-contact__details { margin: 0 0 var(--k-s5); display: grid; gap: var(--k-s2); }
.k-contact__details dt { font-size: .8125rem; font-weight: 600; color: var(--k-slate); }
.k-contact__details dd { margin: 0; color: var(--k-ink); font-weight: 500; }
.k-contact__details a { color: var(--k-ink) !important; text-decoration: underline !important; text-decoration-color: var(--k-mist) !important; text-underline-offset: 4px; }
.k-contact__details a:hover { text-decoration-color: var(--k-green) !important; }
.k-contact__next { margin: 0; padding-left: 1.2rem; display: grid; gap: .6rem; }
.k-contact__next li::marker { color: var(--k-green); font-weight: 600; }
.k-contact__card { background: var(--k-white); border: 1px solid var(--k-mist); border-radius: var(--k-radius-lg); padding: clamp(1.5rem, 4vw, 2.75rem); }
@media (max-width: 860px) { .k-contact { grid-template-columns: 1fr; } .k-contact__card { order: -1; } }

/* ---------------------------------------------------------------------
   404
   --------------------------------------------------------------------- */
.k-404 { padding: var(--k-section) 0; min-height: 60vh; display: flex; align-items: center; }
.k-404 .k-hero__title { max-width: 16ch; }


/* =====================================================================
   INNER PAGES
   ===================================================================== */

/* Page hero ----------------------------------------------------------- */
.k-page-hero { padding: clamp(2.75rem, 2rem + 4vw, 5.5rem) 0 clamp(2.5rem, 2rem + 3vw, 4.5rem); border-bottom: 1px solid var(--k-mist); }
.k-page-hero__title {
  font-family: var(--k-display) !important; font-weight: 700; color: var(--k-ink);
  font-size: clamp(2.4rem, 1.5rem + 3.4vw, 4.4rem); line-height: 1; letter-spacing: -.04em;
  margin: 0 0 var(--k-s3); max-width: 18ch;
}
.k-page-hero .k-lead { max-width: 60ch; }
.k-page-hero__meta { margin-top: var(--k-s3); font-size: var(--k-fs-sm); color: var(--k-slate); display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; }
.k-page-hero--paper { background: var(--k-paper); border-bottom: 0; }

.k-crumbs { margin: 0 0 var(--k-s3); }
.k-crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem; font-size: .875rem; color: var(--k-slate); }
.k-crumbs li + li::before { content: "/"; margin-right: .4rem; color: #a5b3ad; }
.k-crumbs a { color: var(--k-slate) !important; text-decoration: none !important; }
.k-crumbs a:hover { color: var(--k-ink) !important; text-decoration: underline !important; text-underline-offset: 3px; }
.k-crumbs [aria-current] { color: var(--k-ink); }

/* Two-column page body (content + sidebar) ---------------------------- */
.k-layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.k-layout--left { grid-template-columns: 260px minmax(0, 1fr); }
.k-sticky { position: sticky; top: 100px; }
@media (max-width: 991.98px) {
  .k-layout, .k-layout--left { grid-template-columns: 1fr; }
  .k-sticky { position: static; }
}

/* Side navigation (services, policies) */
.k-sidenav h2 { font: 600 .8125rem/1.3 var(--k-body) !important; color: var(--k-slate) !important; margin: 0 0 .5rem; letter-spacing: .01em; }
.k-sidenav h2:not(:first-child) { margin-top: var(--k-s3); }
.k-sidenav ul { list-style: none; margin: 0; padding: 0; border-left: 1.5px solid var(--k-mist); }
.k-sidenav a {
  display: block; padding: .45rem 0 .45rem 1rem; margin-left: -1.5px; border-left: 1.5px solid transparent;
  color: var(--k-ink) !important; text-decoration: none !important; font-size: .975rem; font-weight: 500;
}
.k-sidenav a:hover { border-left-color: var(--k-slate); }
.k-sidenav a[aria-current="page"] { border-left-color: var(--k-signal); color: var(--k-green) !important; font-weight: 600; }
@media (max-width: 991.98px) { .k-sidenav { padding-top: var(--k-s4); border-top: 1px solid var(--k-mist); } }

/* Service detail ------------------------------------------------------ */
.k-svc-intro { font-size: var(--k-fs-lead); line-height: 1.6; color: var(--k-ink); margin: 0 0 var(--k-s5); max-width: 60ch; }
.k-pair { display: grid; grid-template-columns: 1fr 1fr; gap: var(--k-s4); margin: 0 0 var(--k-s6); }
.k-pair div { border-top: 1px solid var(--k-ink); padding-top: var(--k-s2); }
.k-pair dt { font: 600 .875rem/1.3 var(--k-body); color: var(--k-slate); margin-bottom: .5rem; }
.k-pair dd { margin: 0; color: var(--k-ink); }
@media (max-width: 640px) { .k-pair { grid-template-columns: 1fr; } }

.k-features { list-style: none; margin: var(--k-s4) 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--k-s4); }
.k-features li { padding: var(--k-s3) 0; border-top: 1px solid var(--k-mist); }
.k-features h3 { font-size: 1.125rem !important; margin: 0 0 .4rem; }
.k-features p { margin: 0; }
@media (max-width: 640px) { .k-features { grid-template-columns: 1fr; } }

.k-next {
  display: flex; justify-content: space-between; align-items: center; gap: var(--k-s2);
  margin-top: var(--k-s6); padding: var(--k-s3) 0; border-top: 1px solid var(--k-mist); border-bottom: 1px solid var(--k-mist);
  text-decoration: none !important; color: var(--k-ink) !important;
}
.k-next small { display: block; color: var(--k-slate); font-size: .8125rem; margin-bottom: .2rem; }
.k-next strong { font: 600 1.25rem/1.25 var(--k-display); letter-spacing: -.01em; }
.k-next svg { flex: none; transition: transform .2s var(--k-ease); }
.k-next:hover svg { transform: translateX(4px); }
.k-next:hover strong { color: var(--k-green); }

/* Services hub -------------------------------------------------------- */
.k-hub { display: grid; gap: 0; border-top: 1px solid var(--k-ink); }
.k-hub__pillar { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.6fr); gap: var(--k-s4); padding: var(--k-s5) 0; border-bottom: 1px solid var(--k-mist); }
.k-hub__pillar > div:first-child p { margin: .75rem 0 0; }
.k-hub__list { list-style: none; margin: 0; padding: 0; }
.k-hub__list li + li { border-top: 1px solid var(--k-mist); }
.k-hub__item { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .25rem var(--k-s3); padding: var(--k-s2) 0; text-decoration: none !important; }
.k-hub__item:first-child { padding-top: 0; }
.k-hub__list li:first-child .k-hub__item { padding-top: 0; }
.k-hub__item strong { font: 600 1.125rem/1.3 var(--k-display); color: var(--k-ink); letter-spacing: -.01em; }
.k-hub__item span { grid-column: 1; color: var(--k-slate); font-size: var(--k-fs-sm); max-width: 60ch; }
.k-hub__item svg { grid-row: 1 / span 2; grid-column: 2; align-self: center; color: var(--k-slate); transition: transform .2s var(--k-ease), color .2s; }
.k-hub__item:hover strong { color: var(--k-green); }
.k-hub__item:hover svg { transform: translateX(4px); color: var(--k-green); }
@media (max-width: 860px) { .k-hub__pillar { grid-template-columns: 1fr; gap: var(--k-s3); padding: var(--k-s4) 0; } }

/* Reasons grid (Why Katharos, engagement models) ---------------------- */
.k-grid3 { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--k-s5) var(--k-s4); }
.k-grid3 > li { border-top: 1px solid var(--k-ink); padding-top: var(--k-s3); }
.k-grid3 h3, .k-grid3 .k-h3 { font-size: var(--k-fs-h3) !important; margin: 0 0 .6rem; }
.k-grid3 p { margin: 0; }
@media (max-width: 991.98px) { .k-grid3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .k-grid3 { grid-template-columns: 1fr; gap: var(--k-s4); } }

.k-models { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--k-s3); }
.k-model { display: flex; flex-direction: column; gap: var(--k-s2); padding: var(--k-s4); border: 1px solid var(--k-mist); border-radius: var(--k-radius-lg); background: var(--k-white); }
.k-model--featured { border-color: var(--k-ink); box-shadow: 0 0 0 1px var(--k-ink); }
.k-model h2 { font-size: 1.5rem !important; margin: 0; }
.k-model__term { font-size: var(--k-fs-sm); color: var(--k-green); font-weight: 600; margin: 0; }
.k-model p { margin: 0; }
.k-model ul { list-style: none; margin: 0; padding: var(--k-s2) 0 0; border-top: 1px solid var(--k-mist); display: grid; gap: .5rem; font-size: var(--k-fs-sm); }
.k-model li { display: flex; gap: .6rem; color: var(--k-ink); }
.k-model li::before { content: ""; flex: none; width: 6px; height: 6px; margin-top: .55em; border-radius: 50%; background: var(--k-signal); }
.k-model .k-btn { margin-top: auto; align-self: flex-start; }
@media (max-width: 991.98px) { .k-models { grid-template-columns: 1fr; } }

/* FAQ — native details/summary */
.k-faq { border-top: 1px solid var(--k-ink); }
.k-faq details { border-bottom: 1px solid var(--k-mist); }
.k-faq summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: var(--k-s2);
  padding: var(--k-s3) 0; font: 600 1.15rem/1.35 var(--k-display); color: var(--k-ink); letter-spacing: -.01em;
}
.k-faq summary::-webkit-details-marker { display: none; }
.k-faq summary::after {
  content: ""; flex: none; width: 12px; height: 12px;
  background: linear-gradient(var(--k-ink), var(--k-ink)) center / 100% 1.5px no-repeat,
              linear-gradient(var(--k-ink), var(--k-ink)) center / 1.5px 100% no-repeat;
  transition: transform .2s var(--k-ease);
}
.k-faq details[open] summary::after { transform: rotate(45deg); }
.k-faq details p { margin: 0 0 var(--k-s3); }

/* Long-form text (policies, blog posts) ------------------------------- */
.k-prose { color: var(--k-ink); font-size: 1.0625rem; line-height: 1.75; max-width: 70ch; }
.k-prose > * + * { margin-top: 1.1em; }
.k-prose p, .k-prose ul, .k-prose ol { margin-bottom: 0; }
.k-prose h2 { font-size: 1.6rem; margin-top: 2.2em; margin-bottom: 0; letter-spacing: -.02em; }
.k-prose h3 { font-size: 1.25rem; margin-top: 1.8em; margin-bottom: 0; }
.k-prose h4 { font-size: 1.05rem; margin-top: 1.5em; margin-bottom: 0; }
.k-prose > :first-child { margin-top: 0; }
.k-prose a { color: var(--k-green); text-decoration: underline; text-underline-offset: 3px; }
.k-prose img { border-radius: var(--k-radius); }
.k-prose blockquote { margin-left: 0; padding-left: var(--k-s3); border-left: 3px solid var(--k-signal); color: var(--k-slate); }
.k-prose pre, .k-prose code { font-size: .9em; background: var(--k-paper); border-radius: 6px; }
.k-prose pre { padding: var(--k-s2); overflow-x: auto; }
.k-prose table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.k-prose th, .k-prose td { border-bottom: 1px solid var(--k-mist); padding: .6rem .5rem; text-align: left; }

/* Blog ---------------------------------------------------------------- */
.k-posts { list-style: none; margin: 0; padding: 0; }
.k-post { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: var(--k-s4); padding: var(--k-s4) 0; border-bottom: 1px solid var(--k-mist); }
.k-post:first-child { padding-top: 0; }
.k-post__img { display: block; aspect-ratio: 4 / 3; border-radius: var(--k-radius); overflow: hidden; background: var(--k-paper); }
.k-post__img img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s var(--k-ease); }
.k-post__img:hover img { transform: scale(1.03); }
.k-post__date { font-size: .875rem; color: var(--k-slate); margin: 0 0 .4rem; }
.k-post h2 { font-size: 1.4rem !important; line-height: 1.25; margin: 0 0 .6rem; letter-spacing: -.015em; }
.k-post h2 a { color: var(--k-ink) !important; text-decoration: none !important; }
.k-post h2 a:hover { color: var(--k-green) !important; }
.k-post p { margin: 0 0 .9rem; }
@media (max-width: 640px) { .k-post { grid-template-columns: 1fr; gap: var(--k-s2); } }

.k-empty { padding: var(--k-s5) var(--k-s4); border: 1px dashed var(--k-mist); border-radius: var(--k-radius-lg); text-align: center; }
.k-empty p { margin: 0 auto var(--k-s2); }

.k-pager { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; margin-top: var(--k-s5); list-style: none; padding: 0; }
.k-pager a, .k-pager span {
  min-width: 42px; height: 42px; padding: 0 .9rem; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--k-mist); border-radius: 999px; font-weight: 500; font-size: .9375rem;
  color: var(--k-ink) !important; text-decoration: none !important;
}
.k-pager a:hover { border-color: var(--k-ink); }
.k-pager [aria-current] { background: var(--k-ink); border-color: var(--k-ink); color: var(--k-white) !important; }

.k-aside { display: grid; gap: var(--k-s5); }
.k-aside h2 { font: 600 1rem/1.3 var(--k-body) !important; color: var(--k-ink) !important; margin: 0 0 var(--k-s2); letter-spacing: 0; }
.k-search { display: flex; border: 1.5px solid var(--k-mist); border-radius: 999px; overflow: hidden; background: var(--k-white); }
.k-search:focus-within { border-color: var(--k-ink); }
.k-search input { flex: 1; min-width: 0; border: 0; padding: .7rem 1.1rem; font: 400 .975rem var(--k-body); color: var(--k-ink); background: transparent; outline: none; }
.k-search button { border: 0; background: none; padding: 0 1rem; color: var(--k-ink); cursor: pointer; }
.k-mini { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--k-s2); }
.k-mini a { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: .9rem; align-items: center; text-decoration: none !important; }
.k-mini img { width: 64px; height: 64px; object-fit: cover; border-radius: 8px; background: var(--k-paper); }
.k-mini strong { display: block; font: 600 .95rem/1.35 var(--k-display); color: var(--k-ink); }
.k-mini small { color: var(--k-slate); font-size: .8125rem; }
.k-mini a:hover strong { color: var(--k-green); }
.k-tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.k-tags a {
  display: inline-block; padding: .35rem .8rem; border: 1px solid var(--k-mist); border-radius: 999px;
  font-size: .875rem; color: var(--k-ink) !important; text-decoration: none !important;
}
.k-tags a:hover { border-color: var(--k-ink); }
.k-archive { list-style: none; margin: 0; padding: 0; }
.k-archive a { display: flex; justify-content: space-between; padding: .5rem 0; border-bottom: 1px solid var(--k-mist); color: var(--k-ink) !important; text-decoration: none !important; font-size: .95rem; }
.k-archive a span { color: var(--k-slate); }
.k-archive a:hover { color: var(--k-green) !important; }

.k-article__img { border-radius: var(--k-radius-lg); overflow: hidden; margin: 0 0 var(--k-s5); background: var(--k-paper); }
.k-article__img img { width: 100%; display: block; }
.k-article__foot { margin-top: var(--k-s5); padding-top: var(--k-s3); border-top: 1px solid var(--k-mist); display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--k-s3); align-items: center; }
.k-share { display: flex; align-items: center; gap: .5rem; font-size: var(--k-fs-sm); }
.k-share a { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--k-mist); border-radius: 50%; color: var(--k-ink) !important; }
.k-share a:hover { border-color: var(--k-ink); }
.k-comments { margin-top: var(--k-s6); }

/* Account (Identity) and auth card ------------------------------------ */
.k-auth { background: var(--k-paper); padding: clamp(3rem, 2rem + 4vw, 6rem) 0; min-height: 70vh; }
.k-auth__card { max-width: 460px; margin: 0 auto; background: var(--k-white); border: 1px solid var(--k-mist); border-radius: var(--k-radius-lg); padding: clamp(1.75rem, 4vw, 2.75rem); }
.k-auth__card h1 { font-size: 2rem !important; letter-spacing: -.03em; margin: 0 0 .5rem; }
.k-auth__card > p { margin: 0 0 var(--k-s4); }
.k-auth .k-form { grid-template-columns: 1fr; gap: var(--k-s3); }
.k-check { display: flex; align-items: center; gap: .6rem; font-size: var(--k-fs-sm); color: var(--k-ink); }
.k-check input { width: 18px; height: 18px; accent-color: var(--k-ink); }
.k-auth__links { margin-top: var(--k-s4); padding-top: var(--k-s3); border-top: 1px solid var(--k-mist); display: grid; gap: .5rem; font-size: var(--k-fs-sm); }
.k-auth__links p { margin: 0; }
.k-divider { display: flex; align-items: center; gap: var(--k-s2); margin: var(--k-s4) 0 var(--k-s3); font-size: .875rem; color: var(--k-slate); }
.k-divider::before, .k-divider::after { content: ""; flex: 1; height: 1px; background: var(--k-mist); }
.k-providers { display: grid; gap: .6rem; }
.k-providers .k-btn { width: 100%; }
.k-alert { padding: .9rem 1rem; border-radius: var(--k-radius); background: var(--k-danger-bg); color: var(--k-danger-ink); font-size: var(--k-fs-sm); }
.k-alert:empty, .k-alert.validation-summary-valid { display: none; }
.k-alert ul { margin: 0; padding-left: 1.1rem; }
.field-validation-error, .k-site .text-danger { color: var(--k-danger) !important; font-size: .875rem; }
.input-validation-error { border-color: var(--k-danger) !important; }

/* Generic pages that keep their own markup (account management, blog admin)
   — give them the site's spacing, type and form styling. */
.k-area-identity main#main-content,
.k-ctrl-blog main#main-content,
.k-generic main#main-content { padding-bottom: var(--k-section); }
.k-area-identity .page-area {
  padding: clamp(2.75rem, 2rem + 4vw, 5rem) 0 clamp(2rem, 2rem + 2vw, 3.5rem); border-bottom: 1px solid var(--k-mist); margin-bottom: var(--k-s5); background: none !important;
}
.k-area-identity .page-area .breadcumb-overlay,
.k-area-identity .page-area ul { display: none; }
.k-area-identity .page-area .breadcrumb { display: block; text-align: left !important; background: none; padding: 0; margin: 0; }
.k-area-identity .page-area h3 {
  font-family: var(--k-display) !important; font-weight: 700; font-size: clamp(2.2rem, 1.5rem + 2.6vw, 3.6rem); letter-spacing: -.04em; line-height: 1.02; color: var(--k-ink); margin: 0;
}
.k-area-identity .page-area .text-center { text-align: left !important; }
.k-area-identity main .container,
.k-ctrl-blog main .container { max-width: var(--k-max); padding-left: clamp(1rem, 4vw, 2rem); padding-right: clamp(1rem, 4vw, 2rem); }
.k-ctrl-blog main#main-content > :not(.container):not(section):not(div) { max-width: var(--k-max); margin-left: auto; margin-right: auto; padding-left: clamp(1rem, 4vw, 2rem); padding-right: clamp(1rem, 4vw, 2rem); }
.k-ctrl-blog main#main-content { padding-top: var(--k-s5); }
.k-ctrl-blog .sub-page-banner, .k-ctrl-blog .pbmit-tbar { padding: var(--k-s3) 0; }
.k-ctrl-blog .sub-page-banner .overlay { display: none; }

.k-area-identity h2, .k-ctrl-blog h2 { font-size: 1.75rem; margin: 0 0 var(--k-s2); }
.k-area-identity h4, .k-ctrl-blog h4 { font-size: 1.1rem; color: var(--k-slate); font-family: var(--k-body); font-weight: 500; margin: 0 0 var(--k-s2); letter-spacing: 0; }
.k-area-identity .form-group, .k-ctrl-blog .form-group { margin-bottom: var(--k-s3); }
.k-area-identity label, .k-ctrl-blog label, .k-ctrl-blog .control-label { font-weight: 600; color: var(--k-ink); font-size: var(--k-fs-sm); margin-bottom: .35rem; }
.k-site .form-control, .k-site .form-select {
  min-height: 48px; padding: .65rem 1rem; font: 400 1rem/1.5 var(--k-body); color: var(--k-ink);
  border: 1.5px solid var(--k-mist); border-radius: var(--k-radius); box-shadow: none;
}
.k-site textarea.form-control { min-height: 140px; }
.k-site .form-control:focus, .k-site .form-select:focus { border-color: var(--k-ink); box-shadow: none; }
.k-site .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 46px; padding: 0 1.3rem; border-radius: 999px; font: 600 .975rem/1 var(--k-body);
  background: var(--k-ink); color: var(--k-white); border: 1.5px solid var(--k-ink);
}
.k-site .btn:hover { background: var(--k-green); border-color: var(--k-green); color: var(--k-white); }
.k-site .btn-default, .k-site .btn-secondary, .k-site .btn-light, .k-site .btn-outline-primary { background: var(--k-white); color: var(--k-ink); border-color: var(--k-mist); }
.k-site .btn-default:hover, .k-site .btn-secondary:hover, .k-site .btn-light:hover, .k-site .btn-outline-primary:hover { background: var(--k-white); color: var(--k-ink); border-color: var(--k-ink); }
.k-site .btn-danger { background: #b42318; border-color: #b42318; }
.k-site .btn-danger:hover { background: #8a1c13; border-color: #8a1c13; }
.k-site .table { --bs-table-bg: transparent; color: var(--k-ink); font-size: .95rem; }
.k-site .table th { font-weight: 600; color: var(--k-slate); border-bottom-color: var(--k-ink) !important; }
.k-site .table td, .k-site .table th { border-color: var(--k-mist); padding: .75rem .6rem; vertical-align: middle; }
.k-site .alert-success { background: var(--k-success-bg); color: var(--k-green); border: 0; border-radius: var(--k-radius); }
.k-site .alert-danger { background: var(--k-danger-bg); color: var(--k-danger-ink); border: 0; border-radius: var(--k-radius); }
.k-site .nav-pills { flex-direction: column; gap: .15rem; border-left: 1.5px solid var(--k-mist); padding-left: 0; list-style: none; }
.k-site .nav-pills li a, .k-site .nav-pills .nav-link {
  display: block; padding: .45rem 0 .45rem 1rem; margin-left: -1.5px; border-left: 1.5px solid transparent; border-radius: 0;
  color: var(--k-ink); text-decoration: none; background: none; font-weight: 500;
}
.k-site .nav-pills li.active a, .k-site .nav-pills .nav-link.active { border-left-color: var(--k-signal); color: var(--k-green); background: none; font-weight: 600; }
.k-site dl.dl-horizontal dt { color: var(--k-slate); font-weight: 600; font-size: var(--k-fs-sm); }
.k-site dl.dl-horizontal dd { margin: 0 0 var(--k-s2); color: var(--k-ink); }

/* Error ---------------------------------------------------------------- */
.k-error code { background: var(--k-paper); padding: .15rem .4rem; border-radius: 4px; color: var(--k-ink); }

/* A page hero already gives breathing room, so the first section can start closer */
.k-page-hero + .k-section { padding-top: var(--k-s6); }
@media (max-width: 991.98px) { .k-layout--left > aside { order: 2; } }
@media (max-width: 640px) { .k-post__img { aspect-ratio: 16 / 9; } }
.k-form input[type="checkbox"], .k-form input[type="radio"] {
  width: 18px !important; min-height: 0 !important; height: 18px; padding: 0 !important; border-radius: 4px !important; flex: none;
}

/* =====================================================================
   THEME TOGGLE + LOGO SWAP
   ===================================================================== */
.k-theme-toggle {
  flex: none; width: 40px; height: 40px; display: inline-grid; place-items: center;
  border: 1px solid var(--k-mist); border-radius: 50%; background: transparent; color: var(--k-ink); cursor: pointer;
  transition: border-color .2s var(--k-ease);
}
.k-theme-toggle:hover { border-color: var(--k-ink); }
.k-theme-toggle svg { width: 18px; height: 18px; }
.k-theme-toggle .k-icon-sun { display: none; }
.k-logo-dark { display: none !important; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .k-theme-toggle .k-icon-moon { display: none; }
  :root:not([data-theme="light"]) .k-theme-toggle .k-icon-sun { display: block; }
  :root:not([data-theme="light"]) .k-logo-light { display: none !important; }
  :root:not([data-theme="light"]) .k-logo-dark { display: block !important; }
}
:root[data-theme="dark"] .k-theme-toggle .k-icon-moon { display: none; }
:root[data-theme="dark"] .k-theme-toggle .k-icon-sun { display: block; }
:root[data-theme="dark"] .k-logo-light { display: none !important; }
:root[data-theme="dark"] .k-logo-dark { display: block !important; }

.k-drawer__theme { display: flex; align-items: center; justify-content: space-between; padding-top: var(--k-s2); border-top: 1px solid var(--k-mist); font-size: var(--k-fs-sm); color: var(--k-ink); }

/* =====================================================================
   BLOG
   ===================================================================== */
.k-container--read { max-width: 820px; }

/* Index header */
.k-blog-head { padding: clamp(2.75rem, 2rem + 4vw, 5rem) 0 var(--k-s4); border-bottom: 1px solid var(--k-mist); }
.k-blog-head__top { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, 360px); gap: var(--k-s4); align-items: end; }
.k-blog-head__top .k-page-hero__title { margin-bottom: var(--k-s2); }
.k-blog-head__search { margin-bottom: .35rem; }
.k-search input::placeholder { color: var(--k-slate); opacity: .8; }
@media (max-width: 860px) { .k-blog-head__top { grid-template-columns: 1fr; gap: var(--k-s3); } }

.k-topics { margin-top: var(--k-s4); }
.k-topics ul { list-style: none; margin: 0; padding: 0 0 2px; display: flex; flex-wrap: wrap; gap: .5rem; }
.k-topics a {
  display: inline-flex; align-items: center; min-height: 38px; padding: 0 1rem; border: 1px solid var(--k-mist); border-radius: 999px;
  font-weight: 500; font-size: .9375rem; color: var(--k-ink) !important; text-decoration: none !important; white-space: nowrap;
  transition: border-color .2s var(--k-ease), background-color .2s var(--k-ease);
}
.k-topics a:hover { border-color: var(--k-ink); }
.k-topics a[aria-current] { background: var(--k-ink); border-color: var(--k-ink); color: var(--k-white) !important; }
@media (max-width: 640px) {
  .k-topics { margin-right: calc(-1 * clamp(1rem, 4vw, 2rem)); }
  .k-topics ul { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; padding-right: clamp(1rem, 4vw, 2rem); }
  .k-topics ul::-webkit-scrollbar { display: none; }
}

.k-blog-body { padding: var(--k-s6) 0 var(--k-section); }
.k-blog-summary { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: baseline; gap: var(--k-s2); margin-bottom: var(--k-s5); padding-bottom: var(--k-s3); border-bottom: 1px solid var(--k-mist); }
.k-blog-summary p { margin: 0; font-weight: 600; color: var(--k-ink); }
.k-blog-section-title { font-family: var(--k-display) !important; font-size: 1.5rem; letter-spacing: -.02em; color: var(--k-ink); margin: 0 0 var(--k-s4); }

/* Cards */
.k-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--k-s5) var(--k-s4); }
@media (max-width: 991.98px) { .k-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .k-cards { grid-template-columns: 1fr; gap: var(--k-s5); } }

.k-card { position: relative; display: flex; flex-direction: column; gap: 1.1rem; }
.k-card__media { display: block; aspect-ratio: 16 / 10; border-radius: 14px; overflow: hidden; background: var(--k-paper); }
.k-card__media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s var(--k-ease); }
.k-card:hover .k-card__media img { transform: scale(1.035); }
.k-card__meta { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem 1rem; margin: 0 0 .65rem; font-size: .8125rem; color: var(--k-slate); }
.k-card__topic { position: relative; z-index: 1; color: var(--k-green) !important; font-weight: 600; text-decoration: none !important; }
.k-card__topic:hover { text-decoration: underline !important; text-underline-offset: 3px; }
.k-card__title { font-family: var(--k-display) !important; font-size: 1.3rem; font-weight: 600; line-height: 1.25; letter-spacing: -.015em; margin: 0 0 .55rem; }
.k-card__title a { color: var(--k-ink) !important; text-decoration: none !important; transition: color .2s var(--k-ease); }
.k-card__title a::after { content: ""; position: absolute; inset: 0; }
.k-card:hover .k-card__title a { color: var(--k-green) !important; }
.k-card__excerpt { margin: 0; color: var(--k-slate); display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

.k-card--featured {
  display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 3.5rem); align-items: center;
  padding-bottom: var(--k-s6); margin-bottom: var(--k-s6); border-bottom: 1px solid var(--k-mist);
}
.k-card--featured .k-card__media { border-radius: var(--k-radius-lg); }
.k-card--featured .k-card__title { font-size: clamp(1.8rem, 1.2rem + 1.8vw, 2.7rem); line-height: 1.08; letter-spacing: -.035em; font-weight: 700; margin-bottom: var(--k-s2); }
.k-card--featured .k-card__excerpt { font-size: var(--k-fs-lead); line-height: 1.6; -webkit-line-clamp: 4; }
.k-card__cta { display: inline-block; margin-top: var(--k-s3); font-weight: 600; color: var(--k-ink); padding-bottom: 2px; border-bottom: 1.5px solid var(--k-signal); }
.k-card:hover .k-card__cta { color: var(--k-green); }
@media (max-width: 860px) { .k-card--featured { grid-template-columns: 1fr; } }

.k-cover {
  display: flex; align-items: flex-end; width: 100%; height: 100%; padding: 1.25rem;
  background: radial-gradient(circle, rgba(47,196,137,.55) 1.4px, transparent 1.7px) 0 0 / 16px 16px, var(--k-cover);
}
.k-cover span { background: var(--k-cover); color: #fff; padding: .25rem .6rem; border-radius: 6px; font: 600 1rem/1.2 var(--k-display); }

/* Pager + archive */
.k-pager-wrap { margin-top: var(--k-s6); padding-top: var(--k-s4); border-top: 1px solid var(--k-mist); display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--k-s2); }
.k-pager-wrap .k-pager { margin: 0; }
.k-pager__gap { border: 0 !important; min-width: 24px !important; padding: 0 !important; color: var(--k-slate) !important; }
.k-pager__status { margin: 0; font-size: var(--k-fs-sm); color: var(--k-slate); }

.k-blog-archive { margin-top: var(--k-s6); padding-top: var(--k-s4); border-top: 1px solid var(--k-mist); }
.k-blog-archive h2 { font: 600 1rem/1.3 var(--k-body) !important; color: var(--k-ink) !important; letter-spacing: 0; margin: 0 0 var(--k-s2); }
.k-blog-archive ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .6rem 1.75rem; }
.k-blog-archive a { color: var(--k-ink) !important; text-decoration: none !important; font-size: .95rem; }
.k-blog-archive a:hover { color: var(--k-green) !important; text-decoration: underline !important; text-underline-offset: 3px; }
.k-blog-archive span { margin-left: .4rem; color: var(--k-slate); font-size: .85rem; }

.k-empty h2 { margin-bottom: .5rem; }

/* Article */
.k-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 1100; pointer-events: none; }
.k-progress span { display: block; height: 100%; background: var(--k-signal); transform: scaleX(0); transform-origin: 0 50%; }

.k-article__head { padding: clamp(2.5rem, 2rem + 4vw, 5rem) 0 var(--k-s5); }
.k-article__title {
  font-family: var(--k-display) !important; font-weight: 700; color: var(--k-ink);
  font-size: clamp(2.2rem, 1.4rem + 3vw, 3.75rem); line-height: 1.04; letter-spacing: -.035em; margin: 0 0 var(--k-s3);
}
.k-article__dek { font-size: clamp(1.15rem, 1rem + .5vw, 1.4rem); line-height: 1.55; color: var(--k-slate); max-width: 60ch; margin: 0 0 var(--k-s4); }
.k-article__meta { display: flex; flex-wrap: wrap; gap: .3rem 1.5rem; margin: 0; padding-top: var(--k-s3); border-top: 1px solid var(--k-mist); font-size: var(--k-fs-sm); color: var(--k-slate); }
.k-article__meta span:first-child { color: var(--k-ink); font-weight: 600; }
.k-article__hero { margin: 0 auto var(--k-s6); max-width: 1160px; }
.k-article__hero img { width: 100%; max-height: 640px; object-fit: cover; border-radius: var(--k-radius-lg); display: block; }

.k-read { display: grid; grid-template-columns: 220px minmax(0, 720px); justify-content: center; gap: clamp(2rem, 5vw, 5rem); padding-bottom: var(--k-section); }
.k-read__rail .k-sticky { top: 110px; }
.k-toc h2 { font: 600 .8125rem/1.3 var(--k-body) !important; color: var(--k-slate) !important; letter-spacing: .01em; margin: 0 0 .75rem; }
.k-toc ol { list-style: none; margin: 0; padding: 0; border-left: 1.5px solid var(--k-mist); }
.k-toc a {
  display: block; padding: .4rem 0 .4rem 1rem; margin-left: -1.5px; border-left: 1.5px solid transparent;
  font-size: .9rem; line-height: 1.4; color: var(--k-slate) !important; text-decoration: none !important;
}
.k-toc a:hover { color: var(--k-ink) !important; }
.k-toc a[aria-current] { color: var(--k-ink) !important; font-weight: 600; border-left-color: var(--k-signal); }
.k-share--rail { margin-top: var(--k-s4); flex-wrap: wrap; }
.k-share button { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--k-mist); border-radius: 50%; color: var(--k-ink); background: none; cursor: pointer; }
.k-share button:hover { border-color: var(--k-ink); }
.k-copy__status { flex-basis: 100%; font-size: .8125rem; color: var(--k-green); min-height: 1.2em; }
.k-copy__status:empty { min-height: 0; }

.k-prose--article { font-size: 1.125rem; line-height: 1.8; max-width: none; }
.k-prose--article > p:first-child { font-size: 1.25rem; line-height: 1.7; }
.k-prose--article h2 { font-size: 1.75rem; scroll-margin-top: 100px; }
.k-prose--article h3 { scroll-margin-top: 100px; }
.k-prose--article figure { margin: 2em 0; }
.k-prose--article figcaption { font-size: .9rem; color: var(--k-slate); margin-top: .6rem; }
.k-prose--article img { display: block; width: 100%; height: auto; }
.k-prose--article li + li { margin-top: .4em; }

.k-article__tags { margin-top: var(--k-s5); padding-top: var(--k-s3); border-top: 1px solid var(--k-mist); }
.k-about-box { margin-top: var(--k-s5); padding: var(--k-s4); border-radius: var(--k-radius-lg); background: var(--k-paper); border: 1px solid var(--k-mist); }
.k-about-box h2 { font-size: 1.35rem; margin: 0 0 .5rem; }
.k-about-box p { margin: 0 0 var(--k-s3); }
.k-related__head { display: flex; justify-content: space-between; align-items: end; gap: var(--k-s2); margin-bottom: var(--k-s5); }

@media (max-width: 1100px) {
  .k-read { grid-template-columns: minmax(0, 720px); }
  .k-read__rail .k-sticky { position: static; }
  .k-read__rail { padding: var(--k-s3); border: 1px solid var(--k-mist); border-radius: var(--k-radius-lg); }
  .k-toc[hidden] + .k-share--rail { margin-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .k-card__media img, .k-post__img img { transition: none; }
  .k-card:hover .k-card__media img { transform: none; }
}
@media (max-width: 991.98px) {
  .k-header__bar > .k-theme-toggle { margin-left: auto; }
  .k-header__bar > .k-burger { margin-left: 0; }
}

.k-read--head { padding-bottom: 0; }
.k-share--rail > span:first-child { flex-basis: 100%; margin-bottom: .25rem; }
.k-card__media { text-decoration: none !important; }
@media (max-width: 1100px) { .k-read__spacer { display: none; } }