/* =========================================================
   KOLD KONCEPTS — Page Components
   ========================================================= */

/* ---------- Home Hero ---------- */
.hero {
  position: relative;
  background: var(--kk-ink);
  color: #fff;
  overflow: hidden;
  min-height: 92vh;
  display: flex;
  align-items: center;
}
.hero__bg {
  position: absolute; inset: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.hero__bg::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(8,9,10,0.94) 0%, rgba(8,9,10,0.86) 38%, rgba(8,9,10,0.55) 65%, rgba(8,9,10,0.86) 100%);
}
.hero__content {
  position: relative;
  z-index: 2;
  padding: var(--space-9) 0 var(--space-8);
  max-width: 700px;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(160,204,57,0.14);
  border: 1px solid rgba(160,204,57,0.4);
  color: var(--kk-lime);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-5);
}
.hero__badge svg { width: 14px; height: 14px; }
.hero h1 {
  color: #fff;
  font-size: clamp(2.6rem, 5.6vw, 4.4rem);
  margin-bottom: var(--space-5);
}
.hero h1 .accent { color: var(--kk-cyan); }
.hero p.lede {
  color: rgba(255,255,255,0.78);
  font-size: 1.2rem;
  margin-bottom: var(--space-7);
}
.hero__ctas { display: flex; gap: var(--space-4); flex-wrap: wrap; margin-bottom: var(--space-8); }
.hero__trust {
  display: flex;
  gap: var(--space-7);
  flex-wrap: wrap;
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.14);
}
.hero__trust-item { display: flex; flex-direction: column; }
.hero__trust-item .num { font-family: var(--font-display); font-weight: 800; font-size: 1.8rem; color: var(--kk-cyan); }
.hero__trust-item .label { font-size: 0.82rem; color: rgba(255,255,255,0.62); margin-top: 2px; }

.hero__scroll {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  color: rgba(255,255,255,0.55);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-display);
}
.hero__scroll .line { width: 1px; height: 32px; background: linear-gradient(to bottom, var(--kk-cyan), transparent); animation: scrollPulse 2s ease-in-out infinite; }
@keyframes scrollPulse { 0%,100%{opacity:.3} 50%{opacity:1} }

@media (max-width: 760px) {
  .hero { min-height: auto; padding-top: 30px; }
  .hero__content { padding: var(--space-8) 0 var(--space-7); }
  .hero__trust { gap: var(--space-5); }
  .hero__scroll { display: none; }
}

/* ---------- Intro / split section ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-9);
  align-items: center;
}
.split--reverse .split__media { order: 2; }
.split__media { position: relative; }
.split__media img { border-radius: var(--radius-lg); width: 100%; aspect-ratio: 4/3.2; object-fit: cover; box-shadow: var(--shadow-lg); }
.split__media-badge {
  position: absolute;
  bottom: -22px; left: -22px;
  background: var(--kk-cyan);
  color: var(--kk-ink);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-md);
  font-family: var(--font-display);
}
.split__media-badge .num { font-size: 1.8rem; font-weight: 800; display: block; line-height: 1; }
.split__media-badge .label { font-size: 0.74rem; font-weight: 600; }
.split__body h2 { margin-bottom: var(--space-5); }
.split__body p { color: var(--kk-text-soft); margin-bottom: var(--space-4); }
.split__list { list-style: none; display: flex; flex-direction: column; gap: 14px; margin-top: var(--space-5); }
.split__list li { display: flex; gap: 12px; align-items: flex-start; font-size: 0.98rem; }
.split__list svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 1px; stroke: var(--kk-cyan-dark); }

@media (max-width: 900px) {
  .split { grid-template-columns: 1fr; gap: var(--space-7); }
  .split--reverse .split__media { order: 0; }
  .split__media-badge { left: 16px; bottom: -18px; }
}

/* ---------- Service / Product cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
@media (max-width: 980px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.svc-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--kk-border);
  display: flex;
  flex-direction: column;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.svc-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.svc-card__img { aspect-ratio: 4/3; overflow: hidden; }
.svc-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.svc-card:hover .svc-card__img img { transform: scale(1.07); }
.svc-card__body { padding: var(--space-5); flex: 1; display: flex; flex-direction: column; }
.svc-card__icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: rgba(32,194,243,0.1);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-4);
}
.svc-card__icon svg { width: 24px; height: 24px; stroke: var(--kk-cyan-dark); }
.svc-card h3 { margin-bottom: 10px; font-size: 1.18rem; }
.svc-card p { color: var(--kk-text-soft); font-size: 0.94rem; flex: 1; }
.svc-card__link {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-display); font-weight: 600; font-size: 0.88rem;
  color: var(--kk-cyan-dark); margin-top: var(--space-4);
}
.svc-card__link svg { width: 14px; height: 14px; transition: transform var(--dur); }
.svc-card__link:hover svg { transform: translateX(3px); }

/* Product tile (no description, image+caption, used on services page grid) */
.product-tile {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 5/4;
}
.product-tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.product-tile:hover img { transform: scale(1.08); }
.product-tile::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(8,9,10,0.85) 0%, rgba(8,9,10,0.1) 55%, transparent 100%);
}
.product-tile figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: var(--space-4);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  z-index: 2;
}

/* ---------- Process steps ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  position: relative;
}
.process::before {
  content: '';
  position: absolute; top: 28px; left: 8%; right: 8%; height: 2px;
  background: repeating-linear-gradient(90deg, var(--kk-border) 0 10px, transparent 10px 18px);
  z-index: 0;
}
.process-step { position: relative; z-index: 1; text-align: left; }
.process-step .step-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: var(--kk-ink);
  color: var(--kk-cyan);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-4);
}
.process-step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.process-step p { font-size: 0.9rem; color: var(--kk-text-soft); }
@media (max-width: 900px) {
  .process { grid-template-columns: repeat(2, 1fr); gap: var(--space-7) var(--space-5); }
  .process::before { display: none; }
}
@media (max-width: 560px) { .process { grid-template-columns: 1fr; } }

/* ---------- Testimonial / quote ---------- */
.quote-block {
  background: var(--kk-ink);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  overflow: hidden;
}
.quote-block::before {
  content: '\201C';
  position: absolute; top: -10px; left: 24px;
  font-family: Georgia, serif;
  font-size: 8rem;
  color: rgba(32,194,243,0.18);
  line-height: 1;
}
.quote-block__text { position: relative; z-index: 1; font-size: 1.3rem; font-family: var(--font-display); font-weight: 500; line-height: 1.5; max-width: 760px; }
.quote-block__author { display: flex; align-items: center; gap: 14px; margin-top: var(--space-6); position: relative; z-index: 1; }
.quote-block__author img { width: 54px; height: 54px; border-radius: 50%; object-fit: cover; border: 2px solid var(--kk-cyan); }
.quote-block__author strong { display: block; font-family: var(--font-display); }
.quote-block__author span { font-size: 0.85rem; color: var(--kk-lime); }

/* ---------- Org chart ---------- */
.org-chart { display: flex; flex-direction: column; align-items: center; gap: var(--space-6); }
.org-tier { display: flex; gap: var(--space-5); flex-wrap: wrap; justify-content: center; width: 100%; }
.org-card {
  background: #fff;
  border: 1.5px solid var(--kk-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  text-align: center;
  min-width: 190px;
}
.org-card.is-lead { background: var(--kk-ink); color: #fff; border-color: var(--kk-ink); }
.org-card strong { display: block; font-family: var(--font-display); font-size: 0.96rem; margin-bottom: 4px; }
.org-card span { font-size: 0.8rem; color: var(--kk-cyan-dark); font-weight: 600; }
.org-card.is-lead span { color: var(--kk-cyan); }

/* ---------- Founder feature ---------- */
.founder-feature {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: var(--space-8);
  align-items: center;
}
.founder-feature__photo { position: relative; }
.founder-feature__photo img { border-radius: var(--radius-lg); width: 100%; aspect-ratio: 1/1; object-fit: cover; }
.founder-feature__photo::after {
  content: '';
  position: absolute; inset: -14px;
  border: 2px solid var(--kk-cyan);
  border-radius: var(--radius-lg);
  z-index: -1;
}
.founder-cred { display: flex; gap: 12px; align-items: flex-start; margin-bottom: var(--space-4); }
.founder-cred svg { width: 22px; height: 22px; flex-shrink: 0; margin-top: 2px; stroke: var(--kk-lime); }
.founder-cred p { color: var(--kk-text-soft); font-size: 0.95rem; }
.founder-cred strong { color: var(--kk-ink); }
@media (max-width: 820px) {
  .founder-feature { grid-template-columns: 1fr; }
  .founder-feature__photo { max-width: 280px; margin: 0 auto; }
}

/* ---------- Timeline (Company history) ---------- */
.timeline { position: relative; padding-left: 36px; border-left: 2px solid var(--kk-border); display: flex; flex-direction: column; gap: var(--space-6); }
.timeline-item { position: relative; }
.timeline-item::before {
  content: '';
  position: absolute; left: -43px; top: 2px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--kk-cyan); border: 3px solid #fff; box-shadow: 0 0 0 2px var(--kk-cyan);
}
.timeline-item .year { font-family: var(--font-display); font-weight: 800; color: var(--kk-cyan-dark); font-size: 0.9rem; }
.timeline-item h3 { margin: 4px 0 6px; font-size: 1.1rem; }
.timeline-item p { color: var(--kk-text-soft); font-size: 0.95rem; }

/* ---------- Projects / Portfolio ---------- */
.filter-bar { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: var(--space-7); }
.filter-btn {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.86rem;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--kk-border);
  background: #fff;
  color: var(--kk-text-soft);
  transition: all var(--dur);
}
.filter-btn:hover { border-color: var(--kk-cyan); color: var(--kk-ink); }
.filter-btn.is-active { background: var(--kk-ink); border-color: var(--kk-ink); color: #fff; }

.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
@media (max-width: 980px) { .project-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .project-grid { grid-template-columns: 1fr; } }

.project-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3.4;
  cursor: pointer;
  border: none;
  padding: 0;
  display: block;
  width: 100%;
}
.project-card img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.project-card:hover img { transform: scale(1.08); }
.project-card::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(8,9,10,0.92) 0%, rgba(8,9,10,0.25) 50%, transparent 75%);
}
.project-card__body {
  position: absolute; left: 0; right: 0; bottom: 0; padding: var(--space-5);
  text-align: left; color: #fff; z-index: 2;
}
.project-card__tag {
  display: inline-block;
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  background: var(--kk-cyan); color: var(--kk-ink);
  padding: 4px 10px; border-radius: var(--radius-pill);
  margin-bottom: 8px;
}
.project-card__body h3 { color: #fff; font-size: 1.05rem; margin-bottom: 2px; }
.project-card__body span { font-size: 0.82rem; color: rgba(255,255,255,0.7); }

/* Lightbox */
.lightbox {
  position: fixed; inset: 0; z-index: 300;
  background: rgba(5,6,7,0.96);
  display: none;
  align-items: center; justify-content: center;
  padding: var(--space-6);
}
.lightbox.is-open { display: flex; }
.lightbox__inner { max-width: 920px; width: 100%; }
.lightbox__img-wrap { border-radius: var(--radius-md); overflow: hidden; margin-bottom: var(--space-5); }
.lightbox img { width: 100%; max-height: 64vh; object-fit: contain; background: #000; }
.lightbox__meta { color: #fff; display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; gap: var(--space-4); }
.lightbox__meta h3 { color: #fff; }
.lightbox__meta p { color: rgba(255,255,255,0.65); font-size: 0.9rem; margin-top: 4px; }
.lightbox__close {
  position: absolute; top: 24px; right: 24px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
}
.lightbox__close svg { width: 20px; height: 20px; stroke: #fff; }
.lightbox__nav { position: absolute; top: 50%; transform: translateY(-50%); width: 46px; height: 46px; border-radius: 50%; background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); display: flex; align-items: center; justify-content: center; }
.lightbox__nav svg { width: 20px; height: 20px; stroke: #fff; }
.lightbox__nav--prev { left: 24px; }
.lightbox__nav--next { right: 24px; }
@media (max-width: 760px) { .lightbox__nav { display: none; } }

/* ---------- FAQ accordion ---------- */
.accordion { display: flex; flex-direction: column; gap: var(--space-4); }
.accordion-item {
  border: 1.5px solid var(--kk-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #fff;
}
.accordion-trigger {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5);
  background: none; border: none;
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--kk-ink);
}
.accordion-trigger .icon {
  flex-shrink: 0;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--kk-fog);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--dur), transform var(--dur);
}
.accordion-trigger .icon svg { width: 16px; height: 16px; stroke: var(--kk-ink); transition: transform var(--dur); }
.accordion-item.is-open .accordion-trigger .icon { background: var(--kk-cyan); }
.accordion-item.is-open .accordion-trigger .icon svg { transform: rotate(45deg); }
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur) var(--ease);
}
.accordion-panel__inner { padding: 0 var(--space-5) var(--space-5); color: var(--kk-text-soft); font-size: 0.96rem; line-height: 1.7; }

.faq-categories { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: var(--space-6); }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  background: var(--kk-ink);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.4fr auto;
  align-items: center;
  gap: var(--space-6);
}
.cta-band::before {
  content: '';
  position: absolute; right: -60px; top: -60px;
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(32,194,243,0.25), transparent 70%);
}
.cta-band h2 { color: #fff; margin-bottom: var(--space-3); }
.cta-band p { color: rgba(255,255,255,0.7); }
.cta-band__actions { display: flex; gap: var(--space-4); position: relative; z-index: 1; flex-wrap: wrap; }
@media (max-width: 760px) {
  .cta-band { grid-template-columns: 1fr; text-align: left; padding: var(--space-7); }
}

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: var(--space-8);
}
.contact-info-card {
  background: var(--kk-ink);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: var(--space-7);
}
.contact-info-card h3 { color: #fff; margin-bottom: var(--space-5); }
.contact-info-item { display: flex; gap: 14px; align-items: flex-start; margin-bottom: var(--space-5); }
.contact-info-item .ic {
  width: 42px; height: 42px; border-radius: 10px;
  background: rgba(32,194,243,0.15);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-info-item .ic svg { width: 20px; height: 20px; stroke: var(--kk-cyan); }
.contact-info-item strong { display: block; font-family: var(--font-display); font-size: 0.92rem; margin-bottom: 3px; }
.contact-info-item a, .contact-info-item span { color: rgba(255,255,255,0.7); font-size: 0.92rem; }
.contact-info-item a:hover { color: var(--kk-cyan); }
.contact-hours { margin-top: var(--space-6); padding-top: var(--space-6); border-top: 1px solid rgba(255,255,255,0.12); }
.contact-hours h4 { color: #fff; font-family: var(--font-display); font-size: 0.88rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: var(--space-3); }
.contact-hours dl { display: grid; grid-template-columns: 1fr auto; gap: 8px 0; font-size: 0.9rem; color: rgba(255,255,255,0.68); }
.contact-hours dd { text-align: right; color: #fff; font-weight: 500; }

.form-card {
  background: #fff;
  border: 1px solid var(--kk-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  box-shadow: var(--shadow-sm);
}
@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
}

/* Tabs (Simple contact vs Request a Quote) */
.form-tabs { display: flex; gap: 8px; margin-bottom: var(--space-6); background: var(--kk-fog); border-radius: var(--radius-pill); padding: 6px; }
.form-tab {
  flex: 1;
  background: none; border: none;
  padding: 12px 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--kk-text-soft);
  transition: all var(--dur);
}
.form-tab.is-active { background: var(--kk-ink); color: #fff; }
.form-panel { display: none; }
.form-panel.is-active { display: block; animation: fadeUp .4s var(--ease); }

/* ---------- Map embed placeholder ---------- */
.map-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--kk-border);
  aspect-ratio: 16/6;
}
.map-frame iframe { width: 100%; height: 100%; border: 0; }

/* ---------- Page-specific responsive ---------- */
@media (max-width: 760px) {
  .grid-3, .grid-2, .project-grid, .checkbox-grid { gap: var(--space-5); }
  .quote-block { padding: var(--space-6); }
  .cta-band { padding: var(--space-6); }
  .org-tier { gap: var(--space-3); }
  .org-card { min-width: 150px; padding: var(--space-3) var(--space-4); }
}

/* ---------- Nav dropdown (Services & Products) ---------- */
.nav__list li.has-dropdown { position: relative; }
.nav__list li.has-dropdown > a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.nav__list li.has-dropdown .caret {
  width: 13px;
  height: 13px;
  transition: transform var(--dur) var(--ease);
}
.nav__list li.has-dropdown:hover .caret,
.nav__list li.has-dropdown:focus-within .caret {
  transform: rotate(180deg);
}
.dropdown-panel {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  width: 320px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 10px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  z-index: 110;
}
.dropdown-panel::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background: #fff;
}
.nav__list li.has-dropdown:hover .dropdown-panel,
.nav__list li.has-dropdown:focus-within .dropdown-panel {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.dropdown-panel a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--kk-text) !important;
  white-space: normal;
}
.dropdown-panel a:hover {
  background: var(--kk-fog);
  color: var(--kk-ink) !important;
}
.dropdown-panel a[aria-current="page"]::after { display: none; }
.dd-ic {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: rgba(32,194,243,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
}
.dd-ic svg { width: 17px; height: 17px; stroke: var(--kk-cyan-dark); }
.dropdown-divider {
  height: 1px;
  background: var(--kk-border);
  margin: 6px 4px;
}

/* ---------- Mobile drawer submenu (Services & Products) ---------- */
.mobile-has-sub { display: flex; flex-direction: column; }
.mobile-sub-toggle {
  background: none;
  border: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: #fff;
  padding: 0;
  text-align: left;
}
.mobile-sub-toggle svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-left: 12px;
  transition: transform var(--dur) var(--ease);
}
.mobile-sub-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
.mobile-sub-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur) var(--ease);
  padding-left: 4px;
}
.mobile-sub-list li { border-left: 2px solid rgba(32,194,243,0.4); padding-left: 16px; }
.mobile-sub-list a {
  font-size: 1.02rem;
  font-weight: 500;
  color: var(--kk-text-on-dark-soft) !important;
}
.mobile-sub-list a:hover { color: var(--kk-cyan) !important; }

/* ---------- Blog index: featured article card ---------- */
.blog-feature {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-7);
  background: #fff;
  border: 1px solid var(--kk-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.blog-feature:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.blog-feature__media { overflow: hidden; }
.blog-feature__media img { width: 100%; height: 100%; object-fit: cover; min-height: 280px; }
.blog-feature__body { padding: var(--space-7) var(--space-7) var(--space-7) 0; display: flex; flex-direction: column; }
.blog-feature__meta {
  display: block;
  margin-top: var(--space-4);
  font-size: 0.84rem;
  color: var(--kk-grey);
  font-family: var(--font-display);
  font-weight: 500;
}
@media (max-width: 860px) {
  .blog-feature { grid-template-columns: 1fr; }
  .blog-feature__body { padding: var(--space-6); }
  .blog-feature__media img { min-height: 220px; }
}

/* ---------- Blog article page ---------- */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-8);
}
@media (max-width: 980px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-layout .toc-sidebar { order: -1; }
}
.snippet-box {
  background: var(--kk-fog);
  border-left: 4px solid var(--kk-cyan);
  border-radius: 8px;
  padding: 22px 26px;
  margin-bottom: var(--space-7);
}
.snippet-box .label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--kk-grey);
  margin-bottom: 8px;
  font-family: var(--font-display);
}
.snippet-box p { font-size: 1.02rem; color: var(--kk-ink); margin: 0; }

.article-body h2 {
  font-size: 1.55rem;
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
  scroll-margin-top: 100px;
}
.article-body h2::before {
  content: '';
  display: block;
  width: 40px;
  height: 4px;
  background: var(--kk-lime);
  margin-bottom: 14px;
  border-radius: 2px;
}
.article-body h3 { font-size: 1.18rem; margin-top: var(--space-6); margin-bottom: 10px; }
.article-body p { margin-bottom: var(--space-4); color: var(--kk-text-soft); font-size: 1.02rem; }
.article-body ul, .article-body ol { margin: 0 0 var(--space-5) 0; padding-left: 22px; }
.article-body li { margin-bottom: 10px; color: var(--kk-text-soft); }
.article-body strong { color: var(--kk-ink); }
.article-body a { color: var(--kk-cyan-dark); font-weight: 600; text-decoration: underline; text-decoration-color: rgba(32,194,243,0.35); }
.article-body a:hover { text-decoration-color: var(--kk-cyan-dark); }

.intro-quote {
  font-family: var(--font-display);
  font-size: 1.18rem;
  font-weight: 500;
  color: var(--kk-ink);
  border-left: 4px solid var(--kk-lime);
  padding-left: 20px;
  margin: var(--space-3) 0 var(--space-6);
  line-height: 1.5;
}

.toc-sidebar { position: relative; }
.toc-box {
  position: sticky;
  top: 110px;
  background: var(--kk-fog);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
}
.toc-box .toc-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: var(--space-4);
  color: var(--kk-ink);
}
.toc-box ul { list-style: none; padding: 0; margin: 0; }
.toc-box li { margin-bottom: 8px; font-size: 0.88rem; }
.toc-box a {
  color: var(--kk-text-soft);
  display: block;
  padding: 4px 0;
  border-left: 2px solid transparent;
  padding-left: 10px;
  text-decoration: none;
  font-weight: 500;
}
.toc-box a:hover, .toc-box a.is-active { color: var(--kk-cyan-dark); border-left-color: var(--kk-cyan); }
.toc-cta {
  margin-top: var(--space-6);
  background: var(--kk-ink);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  color: #fff;
}
.toc-cta p { font-size: 0.85rem; color: var(--kk-text-on-dark-soft); margin-bottom: var(--space-4); }

.warning-box {
  background: #FFF9E8;
  border: 1px solid #F2E3A8;
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  margin: var(--space-6) 0 var(--space-7);
}
.warning-box .label {
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #8A6D00;
  margin-bottom: 10px;
  font-family: var(--font-display);
}
.warning-box ul { margin: 0; padding-left: 20px; }
.warning-box li { color: var(--kk-text-soft); margin-bottom: 8px; }

.factor-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); margin: var(--space-5) 0 var(--space-7); }
@media (max-width: 640px) { .factor-grid { grid-template-columns: 1fr; } }
.factor-card { background: #fff; border: 1px solid var(--kk-border); border-radius: var(--radius-md); padding: var(--space-4) var(--space-5); }
.factor-card .ftitle {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--kk-ink);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.factor-card .ftitle::before { content: ''; width: 8px; height: 8px; background: var(--kk-cyan); border-radius: 2px; flex-shrink: 0; }
.factor-card p { font-size: 0.92rem; color: var(--kk-grey); margin: 0; }

.inline-cta {
  background: var(--kk-ink);
  border-radius: var(--radius-lg);
  padding: var(--space-7);
  margin: var(--space-8) 0;
  position: relative;
  overflow: hidden;
  color: #fff;
}
.inline-cta::after {
  content: '';
  position: absolute; right: -40px; top: -40px;
  width: 180px; height: 180px;
  background: var(--kk-lime);
  opacity: 0.15;
  clip-path: polygon(100% 0%, 100% 100%, 0% 0%);
}
.inline-cta h3 { color: #fff; font-size: 1.3rem; margin-bottom: 10px; position: relative; z-index: 1; }
.inline-cta p { color: var(--kk-text-on-dark-soft); font-size: 0.98rem; max-width: 560px; margin-bottom: var(--space-5); position: relative; z-index: 1; }

.industry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); margin: var(--space-5) 0 var(--space-7); }
@media (max-width: 760px) { .industry-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .industry-grid { grid-template-columns: 1fr; } }
.industry-card { border: 1px solid var(--kk-border); border-radius: var(--radius-sm); padding: var(--space-4); background: var(--kk-fog); }
.industry-card .iname { font-family: var(--font-display); font-weight: 600; font-size: 0.88rem; color: var(--kk-ink); }

.article-hero {
  position: relative;
  background: var(--kk-ink);
  color: #fff;
  overflow: hidden;
  padding: var(--space-9) 0 var(--space-7);
}
.article-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 85% 15%, rgba(32,194,243,0.18), transparent 55%), radial-gradient(circle at 8% 95%, rgba(160,204,57,0.14), transparent 50%);
}
.article-hero__inner { position: relative; z-index: 1; max-width: 880px; }
.article-hero h1 { color: #fff; font-size: clamp(2rem, 4.4vw, 3rem); margin-bottom: var(--space-5); }
.article-hero h1 .accent { color: var(--kk-cyan); }
.article-hero p.lede { color: var(--kk-text-on-dark-soft); font-size: 1.1rem; }
.article-meta { display: flex; flex-wrap: wrap; gap: var(--space-5); margin-top: var(--space-6); font-size: 0.85rem; color: var(--kk-text-on-dark-soft); font-family: var(--font-display); }
.article-meta span { display: flex; align-items: center; gap: 6px; }
.article-meta .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--kk-cyan); }