*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:               #0A0A0F;
  --color-surface:          #13131A;
  --color-accent-primary:   #1E8FD5;
  --color-accent-secondary: #C8922A;
  --color-text-primary:     #F0F0F5;
  --color-text-secondary:   #6B7280;
  --nav-height: 80px;
}

html, body {
  width: 100%;
  height: 100%;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 400;
  overflow-x: hidden;
}

/* NAV */
.koa-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 28px 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.koa-nav__logo {
  height:40px;
  width: auto;
  margin-right: auto;
  opacity: 1;
  transition: opacity 0.4s ease;
}

.koa-nav__logo--hidden {
  opacity: 0;
  pointer-events: none;
}

.koa-nav__links {
  list-style: none;
  display: flex;
  gap: 40px;
}

.koa-nav__links a {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-text-primary);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.koa-nav__links a:hover {
  opacity: 1;
}

/* HERO */
.koa-hero {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background-color: var(--color-bg);
  z-index: 1;
}

#koa-hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.koa-hero__fade-top {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(to bottom, var(--color-bg) 0%, transparent 100%);
  z-index: 2;
  pointer-events: none;
}

.koa-hero__fade-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
  z-index: 2;
  pointer-events: none;
}

.koa-hero__fade-left {
  position: absolute;
  top: 0;
  left: 0;
  width: 20%;
  height: 0%;
  background: linear-gradient(to right, var(--color-bg) 0%, transparent 100%);
  z-index: 2;
  pointer-events: none;
}

.koa-hero__fade-right {
  position: absolute;
  top: 0;
  right: 0;
  width: 20%;
  height: 0%;
  background: linear-gradient(to left, var(--color-bg) 0%, transparent 100%);
  z-index: 2;
  pointer-events: none;
}

.koa-hero__corner {
  position: absolute;
  width: 50px;
  height: 50px;
  z-index: 3;
  pointer-events: none;
  opacity: 0.35;
}

.koa-hero__corner--tl {
  top: 28px;
  left: 28px;
  border-top: 1px solid var(--color-accent-primary);
  border-left: 1px solid var(--color-accent-primary);
}

.koa-hero__corner--tr {
  top: 28px;
  right: 28px;
  border-top: 1px solid var(--color-accent-primary);
  border-right: 1px solid var(--color-accent-primary);
}

.koa-hero__corner--bl {
  bottom: 28px;
  left: 28px;
  border-bottom: 1px solid var(--color-accent-primary);
  border-left: 1px solid var(--color-accent-primary);
}

.koa-hero__corner--br {
  bottom: 28px;
  right: 28px;
  border-bottom: 1px solid var(--color-accent-primary);
  border-right: 1px solid var(--color-accent-primary);
}

.koa-hero__text {
  position: absolute;
  bottom: 52%;
  left: 6%;
  z-index: 10;
}

.koa-hero__headline {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 600;
  line-height: 1.1;
  color: var(--color-text-primary);
  margin-bottom: 16px;
}

.koa-hero__sub {
  font-size: clamp(0.85rem, 1.2vw, 1rem);
  font-weight: 400;
  color: var(--color-text-primary);
  line-height: 1.7;
}

.koa-hero__logo {
  position: absolute;
  bottom: 12%;
  right: 12%;
  width: clamp(200px, 22vw, 320px);
  height: auto;
  z-index: 10;
  opacity: 0.9;
}

.koa-hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent-primary);
  opacity: 0.35;
  z-index: 3;
  pointer-events: none;
}

/* SCROLL TRANSITION + WORK SEQUENCE */
.koa-hero-sequence-wrap {
  position: relative;
}
.koa-work-sequence {
  position: relative;
  z-index: 2;
  height: 220vh;
  background-color: transparent;
  margin-top: -100vh;
}

.koa-sequence-sticky {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.koa-transition-image {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.koa-transition-image img {
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid rgba(30, 143, 213, 0.4);
  box-shadow: 0 0 30px rgba(30, 143, 213, 0.1);
  opacity: 0;
  transform: translateY(80px) scale(0.6);
}

.koa-work-panels {
  position: absolute;
  bottom: 12%;
  left: 0;
  display: flex;
  align-items: flex-end;
  gap: 24px;
  padding-left: 5%;
  opacity: 0;
  transform: translateX(120vw);
  white-space: nowrap;
}

.koa-panel {
  flex-shrink: 0;
  width: 340px;
  background: rgba(19, 19, 26, 0.7);
  border: 1px solid rgba(30, 143, 213, 0.25);
  border-radius: 12px;
  padding: 32px;
  cursor: pointer;
  backdrop-filter: blur(8px);
  white-space: normal;
  transition: border-color 0.3s ease;
}

.koa-panel:hover {
  border-color: rgba(30, 143, 213, 0.6);
}

.koa-panel__icon {
  font-size: 20px;
  color: var(--color-accent-primary);
  margin-bottom: 20px;
}

.koa-panel__title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}

.koa-panel__desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* Hide scrollbar */
html {
  scrollbar-width: none;
}

html::-webkit-scrollbar {
  display: none;
}

/* FOOTER */
.koa-footer {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: start;
  padding: 60px 60px 40px;
  background-color: #13131A;
  border-top: 1px solid rgba(30, 143, 213, 0.15);
  gap: 40px;
  position: relative;
  z-index: 1;
}

.koa-footer__left {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 10px;
}

.koa-footer__logo {
  height: 40px;
  width: auto;
  margin-bottom: 4px;
}

.koa-footer__sub {
  font-size: 12px;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
}

.koa-footer__tagline {
  font-size: 12px;
  color: var(--color-text-secondary);
  font-style: italic;
  margin-top: 4px;
}

.koa-footer__center {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}

.koa-footer__nav {
  display: flex;
  gap: 32px;
}

.koa-footer__nav a {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-text-primary);
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

.koa-footer__nav a:hover {
  opacity: 1;
}

.koa-footer__properties {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}

.koa-footer__properties a {
  font-size: 12px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.koa-footer__right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
}

.koa-footer__cta {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-accent-primary);
  text-decoration: none;
  border: 1px solid rgba(30, 143, 213, 0.4);
  padding: 10px 24px;
  border-radius: 4px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.koa-footer__cta:hover {
  border-color: var(--color-accent-primary);
  background: rgba(30, 143, 213, 0.08);
}

.koa-footer__copy {
  font-size: 12px;
  color: var(--color-text-secondary);
}

/* PANEL OVERLAY */
.koa-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.koa-overlay.is-open {
  opacity: 1;
  pointer-events: all;
}

.koa-overlay__frame {
  position: relative;
  width: 88vw;
  height: 82vh;
  background: rgba(13, 13, 20, 0.95);
  border: 1px solid rgba(30, 143, 213, 0.4);
  border-radius: 16px;
  box-shadow: 0 0 60px rgba(30, 143, 213, 0.08), 0 0 120px rgba(30, 143, 213, 0.04);
}

/* Title plate — top left, juts out from frame */
.koa-overlay__title-plate {
  position: absolute;
  top: -1px;
  left: 40px;
  transform: translateY(-100%);
  background: rgba(13, 13, 20, 0.95);
  border: 1px solid rgba(30, 143, 213, 0.4);
  border-bottom: none;
  border-radius: 10px 10px 0 0;
  padding: 10px 24px;
  min-width: 200px;
}

.koa-overlay__title-text {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--color-text-primary);
  text-transform: uppercase;
}

/* Close plate — top right, juts out from frame */
.koa-overlay__close-plate {
  position: absolute;
  top: -1px;
  right: 40px;
  transform: translateY(-100%);
  background: rgba(13, 13, 20, 0.95);
  border: 1px solid rgba(30, 143, 213, 0.4);
  border-bottom: none;
  border-radius: 10px 10px 0 0;
  padding: 10px 20px;
  cursor: pointer;
  transition: border-color 0.3s ease;
}

.koa-overlay__close-plate:hover {
  border-color: rgba(30, 143, 213, 0.8);
}

.koa-overlay__close-plate span {
  font-size: 18px;
  color: var(--color-text-secondary);
  line-height: 1;
}

/* Inner layout */
.koa-overlay__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  height: 100%;
  border-radius: 16px;
  overflow: hidden;
}

/* Content column */
.koa-overlay__content {
  padding: 52px 48px;
  display: flex;
  flex-direction: column;
  gap: 32px;
  border-right: 1px solid rgba(30, 143, 213, 0.15);
  overflow-y: auto;
  max-height: 100%;
}

.koa-overlay__tag {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-accent-primary);
  text-transform: uppercase;
}

.koa-overlay__statements {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.koa-overlay__statement {
  font-size: 15px;
  color: var(--color-text-primary);
  line-height: 1.6;
  padding-left: 16px;
  border-left: 2px solid rgba(30, 143, 213, 0.4);
}

.koa-overlay__metric {
  font-size: 36px;
  font-weight: 600;
  color: var(--color-accent-primary);
  line-height: 1.1;
}

.koa-overlay__metric-label {
  font-size: 12px;
  color: var(--color-text-secondary);
  letter-spacing: 0.1em;
  margin-top: 6px;
}

.koa-overlay__unlocked {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-top: auto;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

/* Ambient canvas */
.koa-overlay__ambient {
  position: relative;
  background: rgba(10, 10, 15, 0.6);
}

#overlay-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* WORK LABEL */
.koa-work-label {
  position: absolute;
  top: 16%;
  left: 5%;
  opacity: 0;
  z-index: 10;
}

.koa-work-label__title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-accent-primary);
  margin-bottom: 10px;
}

.koa-work-label__sub {
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text-primary);
  max-width: 420px;
  line-height: 1.6;
}

.koa-nav {
  transition: background 0.3s ease;
}

.koa-nav--scrolled {
  background: rgba(10, 10, 15, 0.75) !important;
  backdrop-filter: blur(16px) !important;
  -webkit-backdrop-filter: blur(16px) !important;
  border-bottom: 1px solid rgba(30, 143, 213, 0.08);
}

/* NAV HOVER SLIDER */
.koa-nav__slider {
  position: absolute;
  border: 1px solid rgba(30, 143, 213, 0.5);
  border-radius: 4px;
  pointer-events: none;
  opacity: 0;
  transition: left 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              width 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.2s ease;
  top: 70%;
  transform: translateY(-50%);
  height: 32px;
  top: 48%
}

.koa-nav__links a:hover {
  opacity: 1;
}

/* CTA SECTION */
.koa-cta {
  padding: 140px 60px;
  background-color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.koa-cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(30, 143, 213, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.koa-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  position: relative;
  z-index: 1;
}

.koa-cta__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-accent-primary);
}

.koa-cta__headline {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 600;
  color: var(--color-text-primary);
  line-height: 1.1;
}

.koa-cta__sub {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 480px;
}

.koa-cta__button {
  margin-top: 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-accent-primary);
  text-decoration: none;
  border: 1px solid rgba(30, 143, 213, 0.4);
  padding: 14px 36px;
  border-radius: 4px;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.koa-cta__button:hover {
  border-color: var(--color-accent-primary);
  background: rgba(30, 143, 213, 0.08);
}

.koa-footer__properties-label {
  display: block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.koa-footer__properties-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.koa-footer__sep {
  width: 1px;
  height: 12px;
  background: rgba(255,255,255,0.4);
  flex-shrink: 0;
}

/* CONTACT PAGE */
.koa-contact {
  padding-top: 140px;
  padding-bottom: 80px;
  max-width: 1100px;
  margin: 0 auto;
  padding-left: 60px;
  padding-right: 60px;
}

.koa-contact__hero {
  margin-bottom: 80px;
}

.koa-contact__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-accent-primary);
  margin-bottom: 24px;
}

.koa-contact__headline {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 600;
  line-height: 1.05;
  color: var(--color-text-primary);
  margin-bottom: 32px;
}

.koa-contact__intro {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 540px;
}

.koa-contact__body {
  max-width: 640px;
}

.koa-contact__form {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.koa-contact__field {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.koa-contact__label-text {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-accent-primary);
  text-transform: uppercase;
}

.koa-contact__input {
  background: rgba(19, 19, 26, 0.8);
  border: 1px solid rgba(30, 143, 213, 0.25);
  border-radius: 6px;
  padding: 16px 20px;
  font-size: 15px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 400;
  color: var(--color-text-primary);
  transition: border-color 0.2s ease;
  outline: none;
  width: 100%;
}

.koa-contact__input::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.5;
}

.koa-contact__input:focus {
  border-color: rgba(30, 143, 213, 0.6);
}

.koa-contact__textarea {
  resize: vertical;
  min-height: 180px;
}

.koa-contact__submit {
  align-self: flex-start;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-accent-primary);
  background: none;
  border: 1px solid rgba(30, 143, 213, 0.4);
  padding: 14px 36px;
  border-radius: 4px;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

.koa-contact__submit:hover {
  border-color: var(--color-accent-primary);
  background: rgba(30, 143, 213, 0.08);
}

.koa-contact__success {
  display: none;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  padding: 48px 0;
}

.koa-contact__success-icon {
  font-size: 32px;
  color: var(--color-accent-primary);
}

.koa-contact__success-headline {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--color-text-primary);
}

.koa-contact__success-sub {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* SYSTEMS PAGE */
#systems-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  display: block;
}

.koa-systems {
  position: relative;
  z-index: 1;
  padding-top: 140px;
  padding-bottom: 80px;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 60px;
  padding-right: 60px;
}

.koa-systems__hero {
  margin-bottom: 120px;
}

.koa-systems__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.25em;
  color: var(--color-accent-primary);
  margin-bottom: 24px;
}

.koa-systems__headline {
  font-size: clamp(3rem, 7vw, 6.5rem);
  font-weight: 600;
  line-height: 1.0;
  color: var(--color-text-primary);
  margin-bottom: 32px;
}

.koa-systems__intro {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 580px;
}

.koa-systems__tier {
  margin-bottom: 100px;
}

.koa-systems__tier-header {
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(30, 143, 213, 0.2);
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 48px;
  align-items: start;
}

.koa-systems__tier-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-accent-primary);
  padding-top: 4px;
}

.koa-systems__tier-desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.koa-systems__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ── Capability strips — horizontal row design ── */
.koa-sys-card {
  position: relative;
  display: grid;
  grid-template-columns: 200px 1fr;
  align-items: baseline;
  gap: 32px;
  padding: 18px 0 18px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  overflow: hidden;
  cursor: default;
}

.koa-sys-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-accent-primary);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s ease;
}

.koa-sys-card--craft::before {
  background: var(--color-accent-secondary);
}

.koa-sys-card__scan {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(30, 143, 213, 0.6), transparent);
  transform: translateY(-1px);
  transition: none;
}

.koa-sys-card--craft .koa-sys-card__scan {
  background: linear-gradient(to right, transparent, rgba(200, 146, 42, 0.6), transparent);
}

.koa-sys-card__icon {
  display: none;
}

.koa-sys-card__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
  letter-spacing: 0.01em;
  line-height: 1.4;
}

.koa-sys-card__desc {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.koa-systems__connector {
  display: flex;
  align-items: center;
  gap: 32px;
  margin-bottom: 100px;
}

.koa-systems__connector-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(30, 143, 213, 0.3), transparent);
}

.koa-systems__connector-text {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 400px;
  text-align: center;
  flex-shrink: 0;
  font-style: italic;
}

/* HAMBURGER */
.koa-nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 101;
}

.koa-nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: all 0.3s ease;
}

.koa-nav__hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.koa-nav__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}

.koa-nav__hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* MOBILE MENU */
.koa-nav__mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(10, 10, 15, 0.97);
  backdrop-filter: blur(16px);
  z-index: 99;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.koa-nav__mobile-menu.is-open {
  opacity: 1;
  pointer-events: all;
}

.koa-nav__mobile-menu ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}

.koa-nav__mobile-menu a {
  font-size: 28px;
  font-weight: 600;
  color: var(--color-text-primary);
  text-decoration: none;
  letter-spacing: 0.08em;
  opacity: 1.0;
  transition: opacity 0.2s ease;
}

.koa-nav__mobile-menu a:hover {
  opacity: 1;
}

@media (max-width: 1024px) {

/* CONTACT PAGE */
  .koa-contact {
    padding-top: 100px;
    padding-left: 24px;
    padding-right: 24px;
  }

  .koa-contact__submit {
    align-self: stretch;
    text-align: center;
  }

  /* WORK SEQUENCE */
  .koa-work-sequence {
    height: auto !important;
    min-height: 0 !important;
    z-index: 2;
    padding-bottom: 0 !important;
  }

  .koa-work-sequence + * {
    margin-top: 0 !important;
  }

  .koa-sequence-sticky {
    position: relative;
    height: auto;
    min-height: 100vh;
    padding: 80px 24px 60px;
  }

  .koa-transition-image {
    position: absolute;
    inset: 0;
  }

  .koa-transition-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 1;
    transform: none;
    border-radius: 0;
    border: none;
  }

  .koa-work-label {
    position: relative;
    opacity: 1;
    top: auto;
    left: auto;
    margin-bottom: 32px;
    z-index: 10;
  }

  .koa-work-panels {
    position: relative;
    bottom: auto;
    left: auto;
    flex-direction: column;
    opacity: 1;
    transform: none;
    padding-left: 0;
    white-space: normal;
    gap: 16px;
    z-index: 10;
  }

  .koa-panel {
    width: 100%;
  }

  /* NAV */
  .koa-nav {
    padding: 20px 24px;
  }

  .koa-nav__logo {
    height: 28px;
  }

  .koa-nav__links {
    display: none;
  }

  .koa-nav__hamburger {
    display: flex;
  }

  .koa-nav__mobile-menu {
    display: flex;
  }

/* SYSTEMS PAGE */
  .koa-systems {
    padding-top: 100px;
    padding-left: 24px;
    padding-right: 24px;
  }

  .koa-systems__grid {
    grid-template-columns: 1fr;
  }

  .koa-systems__tier-header {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .koa-systems__connector {
    flex-direction: column;
    gap: 16px;
  }

  .koa-systems__connector-line {
    width: 100%;
    height: 1px;
  }

  .koa-hero {
    min-height: 100svh;
    height: 100svh;
  }
  .koa-work-sequence {
    margin-top: 0;
    height: auto;
    z-index: 1;
  }
  .koa-hero {
    position: relative;
    top: auto;
  }
  .koa-hero-sequence-wrap {
    display: block;
  }

  /* FOOTER */
  .koa-footer {
    grid-template-columns: 1fr;
    padding: 40px 24px;
    gap: 32px;
    text-align: center;
  }

  .koa-footer__left {
    align-items: center;
  }

  .koa-footer__center {
    align-items: center;
  }

  .koa-footer__right {
    align-items: center;
  }

  .koa-footer__nav {
    flex-wrap: wrap;
    gap: 20px;
  }

  .koa-footer__properties {
    align-items: center;
  }

  /* OVERLAY */
  .koa-overlay__frame {
    width: 95vw;
    height: 85vh;
    overflow: hidden;
  }

  .koa-overlay__inner {
    display: flex !important;
    flex-direction: column !important;
    height: 100%;
  }

  .koa-overlay__ambient {
    flex: 0 0 35vh !important;
    width: 100% !important;
    border-right: none !important;
    border-bottom: 2px solid rgba(30, 143, 213, 0.4);
    order: 1;
  }

  .koa-overlay__content {
    flex: 1 1 auto !important;
    width: 100% !important;
    border-right: none !important;
    overflow-y: auto;
    padding: 32px 24px;
    order: 2;
  }

  .koa-overlay__title-plate {
    left: 16px;
    max-width: 70%;
  }

  .koa-overlay__title-text {
    font-size: 11px;
  }

  .koa-overlay__close-plate {
    right: 16px;
  }
}

.koa-about__block-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-accent-primary);
  padding-top: 4px;
}

.koa-about__block-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.koa-about__block-content p {
  font-size: 16px;
  color: var(--color-text-primary);
  line-height: 1.8;
  opacity: 0.85;
}

.koa-footer__properties a {
  font-size: 12px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.koa-footer__properties a:hover {
  color: var(--color-accent-primary);
}

.koa-footer__link,
.koa-footer__link:link,
.koa-footer__link:visited {
  font-size: 12px;
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}

.koa-footer__link:hover,
.koa-footer__link:focus {
  color: var(--color-text-primary);
}

.koa-footer__properties-links a,
.koa-footer__properties-links a:link,
.koa-footer__properties-links a:visited {
  color: var(--color-text-secondary) !important;
  text-decoration: none !important;
}

.koa-footer__properties-links a:hover,
.koa-footer__properties-links a:focus,
.koa-footer__properties-links a:active {
  color: var(--color-text-primary) !important;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
/* test */
.koa-about {
  padding-top: var(--nav-height);
}

.koa-about__hero {
  display: grid !important;
  grid-template-columns: 1fr 1fr !important;
  gap: 80px;
  align-items: start;
  padding: 60px 80px 0;
  max-width: 1440px;
  margin: 0 auto;
}

.koa-about__hero-image--portrait {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-bottom: 0;
  overflow: visible;
}

.koa-about__hero-image--portrait::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: var(--color-accent-primary);
  z-index: 10;
}

.koa-about__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-primary);
  margin-bottom: 24px;
}

.koa-about__headline {
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--color-text-primary);
  margin-bottom: 24px;
}

.koa-about__intro {
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 56px;
  max-width: 520px;
}

.koa-about__inline-block {
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.koa-about__inline-block .koa-about__block-label {
  margin-bottom: 20px;
}

.koa-about__hero-image--portrait {
  position: relative;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-bottom: 0px;
  overflow: visible;
}

/* .koa-about__hero-image--portrait::after {
  content: '';
  position: absolute;
  bottom: 12px;
  left: 0;
  right: 0;
  height: 160px;
  background: linear-gradient(to top, var(--color-bg) 15%, transparent 100%);
  pointer-events: none;
  z-index: 2;
} */

.koa-about__portrait-line {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent-primary);
  z-index: 10;
}

.koa-about__hero-image--portrait img {
  width: 100%;
  max-width: 520px;
  height: auto;
  object-fit: contain;
  object-position: bottom center;
}

.koa-about__body {
  max-width: 1440px;
  margin: 0 auto;
  padding: 60px 80px 40px;
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.koa-about__block {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 60px;
  padding-top: 48px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.koa-about__block-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-primary);
  padding-top: 4px;
}

.koa-about__block-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.koa-about__block-content p {
  font-size: 16px;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

@media (max-width: 1024px) {
  .koa-about__hero {
  display: grid !important;
  grid-template-columns: 1fr !important;
  padding: 60px 24px 0;
  gap: 0;
}

  .koa-about__hero-image--portrait {
    order: -1;
    padding-bottom: 0;
    margin-bottom: 40px;
  }

  .koa-about__hero-image--portrait::after {
    bottom: 0;
  }

  .koa-about__hero-image--portrait img {
    max-width: 100%;
  }

  .koa-about__body {
    padding: 0 24px 80px;
    gap: 56px;
  }

  .koa-about__block {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .koa-about__intro {
    max-width: 100%;
  }
}

@media (max-width: 1024px) {
  .koa-hero__corner {
    display: none;
  }
}

/* ── Nav logo link ── */
.koa-nav__logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}

/* ── Capabilities Section ── */
.koa-capabilities {
  position: relative;
  padding: 120px 0;
  background: transparent;
}

.koa-plexus-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.koa-capabilities__inner {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 80px;
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.koa-capabilities__header {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.koa-capabilities__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-primary);
}

.koa-capabilities__label--craft {
  color: var(--color-accent-secondary);
}

.koa-capabilities__desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  max-width: 600px;
  line-height: 1.6;
}

.koa-capabilities__grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.koa-capabilities__connector {
  padding: 40px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  text-align: center;
}

.koa-capabilities__connector-text {
  font-size: 15px;
  color: var(--color-text-secondary);
  font-style: italic;
  letter-spacing: 0.01em;
}

/* ── The Record Section ── */
.koa-record {
  position: relative;
  z-index: 1;
  padding: 120px 80px;
  background: transparent;
}

.koa-record__inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.koa-record__label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-secondary);
}

.koa-record__headline {
  font-size: clamp(32px, 4vw, 56px);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--color-text-primary);
}

.koa-record__sub {
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 580px;
}

.koa-record__cta {
  display: inline-block;
  margin-top: 8px;
  padding: 14px 36px;
  border: 1px solid var(--color-accent-secondary);
  color: var(--color-accent-secondary);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.2s ease, color 0.2s ease;
}

.koa-record__cta:hover {
  background: var(--color-accent-secondary);
  color: #fff;
}

/* ── Mobile ── */
@media (max-width: 1024px) {
  .koa-capabilities__inner {
    padding: 0 24px;
    gap: 40px;
  }

  .koa-capabilities__grid {
    flex-direction: column;
  }

  .koa-sys-card {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .koa-record {
    padding: 80px 24px;
  }

  .koa-record__inner {
    text-align: center;
  }
}

@media (max-width: 1024px) {
  .koa-hero-sequence-wrap {
    display: flex;
    flex-direction: column;
  }
  .koa-hero {
    height: 100svh;
    min-height: 100svh;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
  }
  .koa-work-sequence {
    position: relative;
    z-index: 1;
  }
}

@media (max-width: 1024px) {
  .koa-plexus-canvas {
    opacity: 1 !important;
    transition: none !important;
  }
}