:root {
  --color-primary: #2c3e50;
  --color-secondary: #3498db;
  --color-accent: #e74c3c;
  --color-bg: #ecf0f1;
  --color-surface: #ffffff;
  --color-text: #2c3e50;
  --color-muted: #5d6d7e;
  --color-border: #d5dbdb;
  --font-display: "Outfit", "Plus Jakarta Sans", sans-serif;
  --font-body: "Plus Jakarta Sans", "Outfit", sans-serif;
  --radius-pill: 28px;
  --radius-btn: 14px;
  --space-xs: 0.35rem;
  --space-sm: 0.65rem;
  --space-md: 1rem;
  --space-lg: 1.75rem;
  --space-xl: 2.75rem;
  --ky-page-w: 1120px;
  --ky-header-h: 72px;
  --ky-measure: 760px;
  --glow: 0 0 0 1px rgba(52, 152, 219, 0.35), 0 0 18px rgba(52, 152, 219, 0.28);
}

@media (max-width: 768px) {
  :root { --ky-header-h: 64px; }
}

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

html, body {
  max-width: 100%;
  overflow-x: hidden;
}

html { scroll-padding-top: var(--ky-header-h); }

body {
  margin: 0;
  padding-top: var(--ky-header-h);
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
}

[hidden] { display: none !important; }

img, video, iframe {
  max-width: 100%;
  height: auto;
}

a { color: var(--color-secondary); }
a:hover { color: var(--color-primary); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  margin: 0 0 var(--space-md);
}

p { margin: 0 0 var(--space-md); }

.ky-flex { display: flex; align-items: center; }
.ky-wrap { flex-wrap: wrap; }
.ky-gap-sm { gap: var(--space-sm); }
.ky-gap-md { gap: var(--space-md); }
.ky-gap-lg { gap: var(--space-lg); }
.ky-bg-primary { background: var(--color-primary); }
.ky-min0 { min-width: 0; }

.ky-container {
  width: min(100% - 2rem, var(--ky-page-w));
  margin-inline: auto;
}

.ky-measure {
  max-width: var(--ky-measure);
}

.ky-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  min-height: var(--ky-header-h);
  background: var(--color-bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.ky-header__row {
  min-height: var(--ky-header-h);
  justify-content: space-between;
}

.ky-header__logo img {
  width: 180px;
  height: auto;
  display: block;
}

.ky-header a,
.ky-header a:visited {
  color: var(--color-primary);
  text-decoration: none;
}

.ky-header a.ky-btn--primary,
.ky-header a.ky-btn--primary:visited {
  color: #fff;
}

.ky-nav__link {
  font-weight: 600;
  font-size: 0.95rem;
}

.ky-nav__link.is-active {
  color: var(--color-secondary);
  box-shadow: inset 0 -2px 0 var(--color-secondary);
}

.ky-burger {
  display: block;
  width: 44px;
  height: 44px;
  margin-left: auto;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 10px;
}

.ky-burger span {
  display: block;
  height: 2px;
  margin: 6px 0;
  background: var(--color-primary);
}

.ky-overlay {
  display: block;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s, visibility .25s;
}

.ky-drawer {
  display: block;
  position: fixed;
  z-index: 210;
  background: var(--color-bg);
  overflow-y: auto;
  visibility: hidden;
  transition: transform .3s ease, opacity .3s ease, visibility .3s;
}

.ky-drawer a {
  display: block;
  padding: 14px 20px;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.ky-drawer a.ky-btn,
.ky-drawer a.ky-btn:visited {
  margin: 16px 20px;
  color: #fff;
  text-align: center;
}

.ky-drawer__close {
  position: absolute;
  top: 12px;
  right: 16px;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  font-size: 1.75rem;
  cursor: pointer;
  color: var(--color-primary);
}

.ky-drawer--wide {
  top: 0;
  right: 0;
  height: 100vh;
  height: 100dvh;
  width: min(85vw, 400px);
  padding: 72px 0 24px;
  transform: translateX(100%);
}

body.nav-open { overflow: hidden; }
body.nav-open .ky-overlay { opacity: 1; visibility: visible; }
body.nav-open .ky-drawer--wide {
  transform: translateX(0);
  visibility: visible;
}

@media (max-width: 768px) {
  .ky-nav { display: none; }
  .ky-header__logo img { width: 120px; }
}

.ky-utility {
  background: var(--color-primary);
  color: #ecf0f1;
  font-size: 0.85rem;
  padding: 0.45rem 0;
}

.ky-utility span { opacity: 0.95; }

.ky-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-btn);
  border: 1.5px solid var(--color-primary);
  background: transparent;
  color: var(--color-primary);
  font-family: var(--font-body);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s, color .2s, box-shadow .2s;
}

.ky-btn--primary,
a.ky-btn--primary,
a.ky-btn--primary:visited {
  background: linear-gradient(135deg, #3498db 0%, #2c3e50 100%);
  border-color: transparent;
  color: #fff;
  box-shadow: var(--glow);
}

.ky-btn--primary:hover,
a.ky-btn--primary:hover {
  box-shadow: 0 0 0 1px rgba(231, 76, 60, 0.4), 0 0 22px rgba(52, 152, 219, 0.45);
  color: #fff;
}

.ky-hero {
  padding: var(--space-xl) 0 var(--space-lg);
  background: linear-gradient(160deg, #d6eaf8 0%, #ecf0f1 55%, #f8f9f9 100%);
}

.ky-hero__title {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  max-width: 18ch;
}

.ky-hero__text {
  max-width: 62ch;
  color: var(--color-muted);
}

.ky-hero a.ky-btn,
.ky-hero a.ky-btn:visited {
  color: var(--color-primary);
}

.ky-hero a.ky-btn--primary,
.ky-hero a.ky-btn--primary:visited {
  color: #fff;
}

.ky-facts {
  list-style: none;
  padding: 0;
  margin: var(--space-lg) 0 0;
}

.ky-facts li {
  background: var(--color-surface);
  border-radius: 999px;
  padding: 0.45rem 0.9rem;
  font-size: 0.9rem;
  box-shadow: var(--glow);
  min-width: 0;
}

.ky-section {
  padding: var(--space-xl) 0;
}

.ky-section__title {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
}

.ky-app {
  background: var(--color-surface);
}

.ky-app__badges {
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-muted);
  font-weight: 700;
}

.ky-app__head { margin: var(--space-md) 0; }

.ky-app__icon {
  width: 96px;
  height: 96px;
  border-radius: 22%;
  object-fit: contain;
  flex-shrink: 0;
  box-shadow: var(--glow);
}

.ky-app__name {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
}

.ky-app__dev {
  margin: 0;
  color: var(--color-muted);
  overflow-wrap: anywhere;
}

.ky-app__facts {
  margin: var(--space-md) 0;
  padding-left: 1.15rem;
}

.ky-app__facts li { margin-bottom: 0.35rem; }

.ky-app__note,
.ky-app__checked {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.ky-app a.ky-btn--primary,
.ky-app a.ky-btn--primary:visited {
  color: #fff;
}

.ky-safety__list {
  columns: 1;
  padding-left: 1.15rem;
}

@media (min-width: 700px) {
  .ky-safety__list { columns: 2; }
}

.ky-plays__steps {
  padding-left: 1.2rem;
  max-width: 70ch;
}

.ky-plays__steps li { margin-bottom: 0.65rem; }

.ky-chips { margin-bottom: var(--space-md); }

.ky-chip {
  display: inline-flex;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: var(--color-primary);
  color: #ecf0f1;
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--glow);
}

.ky-glossary__dl {
  display: grid;
  gap: var(--space-md);
  margin: 0;
}

.ky-glossary__dl div {
  background: var(--color-surface);
  border-radius: var(--radius-pill);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--glow);
  min-width: 0;
}

.ky-glossary__dl dt {
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.ky-glossary__dl dd { margin: 0; color: var(--color-muted); }

.ky-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

@media (max-width: 768px) {
  .ky-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .ky-grid { grid-template-columns: 1fr; }
}

.ky-card {
  background: var(--color-surface);
  border-radius: var(--radius-pill);
  overflow: hidden;
  box-shadow: var(--glow);
  min-width: 0;
}

.ky-card__band {
  height: 72px;
  background: linear-gradient(120deg, #2c3e50, #3498db);
}

.ky-card__band--alt {
  background: linear-gradient(120deg, #3498db, #e74c3c);
}

.ky-card h3,
.ky-card p {
  padding: 0 var(--space-md);
}

.ky-card h3 { margin-top: var(--space-md); }
.ky-card p { padding-bottom: var(--space-md); color: var(--color-muted); }
.ky-card a { text-decoration: none; color: var(--color-primary); }

.ky-faq__item {
  border: 1px solid #cfd8dc;
  border-radius: 10px;
  margin-bottom: 0.65rem;
  background: var(--color-surface);
}

.ky-faq__q {
  width: 100%;
  min-height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 0.75rem 1rem;
  border: 0;
  background: transparent;
  font: inherit;
  font-weight: 600;
  text-align: left;
  cursor: pointer;
  color: var(--color-primary);
}

.ky-faq__mark {
  font-size: 1.25rem;
  line-height: 1;
  flex-shrink: 0;
}

.ky-faq__a {
  padding: 0 1rem 1rem;
  color: var(--color-muted);
}

.ky-cta {
  background: linear-gradient(135deg, #2c3e50 0%, #1a252f 100%);
  color: #ecf0f1;
}

.ky-cta .ky-section__title { color: #fff; }
.ky-cta p { color: #d5dbdb; max-width: 60ch; }

.ky-cta a.ky-btn--primary,
.ky-cta a.ky-btn--primary:visited {
  color: #fff;
}

.ky-observe.is-in {
  animation: ky-k-wipe .7s ease both;
  background-image: linear-gradient(90deg, var(--color-accent) 50%, transparent 50%);
  background-size: 200% 100%;
  background-repeat: no-repeat;
  background-position: right;
}

@keyframes ky-k-wipe {
  from { background-position: left; }
  to { background-position: right; }
}

@media (prefers-reduced-motion: reduce) {
  .ky-observe.is-in { animation: none; background-image: none; }
  .ky-overlay,
  .ky-drawer { transition: none; }
}

.ky-page {
  padding: var(--space-lg) 0 var(--space-xl);
}

.ky-page__inner {
  max-width: var(--ky-measure);
}

.ky-crumbs {
  margin-bottom: var(--space-md);
  font-size: 0.9rem;
}

.ky-crumbs ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ky-crumbs__item:not(:last-child)::after {
  content: "/";
  margin-left: 0.5rem;
  color: var(--color-muted);
}

.ky-crumbs a { text-decoration: none; }

.ky-topic { margin-bottom: var(--space-xl); }

.ky-topic__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ky-topic__list li {
  border-bottom: 1px solid #d5dbdb;
  padding: 0.85rem 0;
  min-width: 0;
}

.ky-contact-form {
  padding: var(--space-lg);
}

.ky-form {
  display: grid;
  gap: var(--space-md);
}

.ky-form label {
  display: grid;
  gap: 0.35rem;
  font-weight: 600;
}

.ky-form input,
.ky-form textarea {
  width: 100%;
  min-height: 44px;
  padding: 0.65rem 0.85rem;
  border: 1.5px solid #cfd8dc;
  border-radius: 12px;
  font: inherit;
  background: #fff;
}

.ky-form textarea { min-height: 140px; resize: vertical; }

.ky-contact-grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 860px) {
  .ky-contact-grid {
    grid-template-columns: 1.2fr 0.8fr;
    align-items: start;
  }
}

.ky-contact-card {
  background: var(--color-surface);
  border-radius: var(--radius-pill);
  padding: var(--space-lg);
  box-shadow: var(--glow);
  min-width: 0;
}

.ky-article h2 {
  margin-top: var(--space-xl);
}

.ky-footer {
  background: #1a252f;
  color: #d5dbdb;
  padding: var(--space-xl) 0 var(--space-lg);
}

.ky-footer a,
.ky-footer a:visited {
  color: #ecf0f1;
  text-decoration: none;
}

.ky-footer__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.35rem;
}

.ky-footer__heading {
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.5rem;
}

.ky-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ky-footer__list a,
.ky-footer__link {
  font-size: 0.95rem;
}

.ky-footer__link {
  background: none;
  border: 0;
  padding: 0;
  color: #ecf0f1;
  cursor: pointer;
  font: inherit;
}

.ky-footer__disc,
.ky-footer__copy {
  margin-top: var(--space-lg);
  font-size: 0.9rem;
  color: #aab4bc;
}

.ky-footer__wide {
  align-items: flex-start;
  justify-content: space-between;
}

.ky-cookie {
  display: none;
}

.ky-cookie:not([hidden]) {
  display: flex;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 110;
  background: var(--color-primary);
  color: #ecf0f1;
  padding: 1rem 0;
  box-shadow: 0 -4px 18px rgba(0, 0, 0, 0.18);
}

.ky-cookie a { color: #85c1e9; }

.ky-cookie__inner {
  width: min(100% - 1.5rem, var(--ky-page-w));
  margin-inline: auto;
  justify-content: space-between;
  align-items: center;
}

.ky-cookie__actions .ky-btn {
  box-shadow: none;
  min-height: 44px;
}

.ky-cookie__actions .ky-btn--primary,
.ky-cookie__actions a.ky-btn--primary {
  background: #3498db;
  color: #fff;
  border-color: transparent;
}

.ky-cookie__actions .ky-btn:not(.ky-btn--primary) {
  background: transparent;
  color: #ecf0f1;
  border-color: #ecf0f1;
}

body.ky-cookie-open {
  padding-bottom: 110px;
}

@media (max-width: 520px) {
  .ky-app__head { flex-direction: column; align-items: flex-start; }
  .ky-hero__actions .ky-btn { width: 100%; }
  .ky-cookie:not([hidden]) {
    left: 12px;
    right: 12px;
    bottom: 12px;
    width: auto;
    border-radius: 16px;
  }
  body.ky-cookie-open { padding-bottom: 160px; }
}

.ky-stills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 220px));
  justify-content: center;
  gap: 20px;
}

.ky-stills figure { margin: 0; }
.ky-stills img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 16px;
  box-shadow: var(--glow);
}

.ky-app__preview {
  width: auto;
  height: auto;
  max-width: 200px;
  max-height: 240px;
  object-fit: contain;
}