:root {
  --stk-color-dark: #0F212E;
  --stk-color-bright: #FFFFFF;
  --stk-color-accent: #1475E1;
  --stk-color-bg: #1a2e39;
  --stk-color-text: #FFFFFF;
  --stk-color-muted: #B1BAD3;
  --stk-color-surface-elevated: #1A2C38;
  --stk-color-surface-deep: #0F1923;
  --stk-color-border: #2F4553;
  --stk-color-live: #00E701;
  --stk-font-body: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --stk-font-heading: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --stk-radius: 0.5rem;
}

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

body {
  margin: 0;
  padding: 0;
  background-color: var(--stk-color-bg);
  color: var(--stk-color-text);
  font-family: var(--stk-font-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

.stk-header {
  background: var(--stk-color-dark);
  border-bottom: 1px solid var(--stk-color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 70px;
}

.stk-header__container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.stk-header__left {
  display: flex;
  align-items: center;
}

.stk-header__right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.stk-header__ctas {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

@media (max-width: 480px) {
  .stk-header__ctas .stk-cta--secondary {
    display: none;
  }
}

.stk-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  font-family: var(--stk-font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--stk-color-bright);
}

.stk-logo img {
  height: auto;
  max-height: 40px;
  width: auto;
  object-fit: contain;
}

.stk-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  font-family: var(--stk-font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--stk-radius);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}

.stk-cta--primary {
  background: var(--stk-color-accent);
  color: var(--stk-color-bright);
  border: 1px solid transparent;
  box-shadow: 0 0 10px rgba(20, 117, 225, 0.15);
}

.stk-cta--primary:hover {
  filter: brightness(1.15);
  transform: scale(1.02);
  box-shadow: 0 0 15px rgba(20, 117, 225, 0.3);
}

.stk-cta--secondary {
  background: var(--stk-color-surface-elevated);
  color: var(--stk-color-text);
  border: 1px solid var(--stk-color-border);
}

.stk-cta--secondary:hover {
  background: var(--stk-color-surface-deep);
  border-color: var(--stk-color-muted);
}

.stk-nav {
  display: flex;
  align-items: center;
}

.stk-nav::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 33, 46, 0.8);
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 999;
}

.stk-nav:has(.stk-nav__checkbox:checked)::before {
  opacity: 1;
  pointer-events: auto;
}

.stk-nav__checkbox {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}

.stk-nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
  z-index: 1002;
  transition: all 0.3s ease;
}

.stk-nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--stk-color-bright);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.stk-nav__list {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 340px;
  max-width: calc(100vw - 40px);
  background: var(--stk-color-surface-elevated);
  border-left: 1px solid var(--stk-color-border);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
  display: flex; 
  flex-direction: column;
  padding: 80px 2rem 2rem 2rem;
  margin: 0;
  list-style: none;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 1001;
  overflow-y: auto;
  gap: 0.5rem;
}

.stk-nav__checkbox:checked ~ .stk-nav__list {
  transform: translateX(0);
}

.stk-nav__checkbox:checked ~ .stk-nav__toggle .stk-nav__toggle-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.stk-nav__checkbox:checked ~ .stk-nav__toggle .stk-nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.stk-nav__checkbox:checked ~ .stk-nav__toggle .stk-nav__toggle-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.stk-nav__checkbox:checked ~ .stk-nav__toggle {
  position: fixed;
  right: 1.5rem;
  top: 1.6rem;
}

.stk-nav__item {
  width: 100%;
  position: relative;
}

.stk-nav__link {
  display: block;
  padding: 0.85rem 1rem;
  color: var(--stk-color-muted);
  text-decoration: none;
  font-family: var(--stk-font-heading);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--stk-radius);
  transition: all 0.2s ease;
  border-left: 3px solid transparent;
}

.stk-nav__link:hover {
  background: var(--stk-color-surface-deep);
  color: var(--stk-color-bright);
}

.stk-nav__link--active {
  background: var(--stk-color-surface-deep);
  color: var(--stk-color-bright);
  border-left-color: var(--stk-color-accent);
}

.stk-nav__item--has-children .stk-nav__submenu {
  list-style: none;
  margin: 0.25rem 0 0 1rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  border-left: 1px solid var(--stk-color-border);
}

.stk-nav__submenu .stk-nav__link {
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
}

.stk-lang {
  display: inline-flex;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.stk-lang__link {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--stk-color-muted);
  text-decoration: none;
  padding: 0.25rem 0.5rem;
  border-radius: var(--stk-radius);
  background: var(--stk-color-surface-deep);
  border: 1px solid var(--stk-color-border);
  transition: all 0.2s ease;
}

.stk-lang__link:hover, .stk-lang__link--active {
  color: var(--stk-color-bright);
  border-color: var(--stk-color-accent);
  background: var(--stk-color-surface-elevated);
}

.stk-breadcrumbs {
  background: var(--stk-color-surface-deep);
  border-bottom: 1px solid var(--stk-color-border);
  padding: 0.75rem 1.5rem;
}

.stk-breadcrumbs:empty {
  display: none;
}

.stk-breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0.5rem;
}

.stk-breadcrumbs__item {
  display: flex;
  align-items: center;
  font-size: 0.85rem;
  color: var(--stk-color-muted);
}

.stk-breadcrumbs__item:not(:last-child)::after {
  content: "/";
  margin-left: 0.5rem;
  color: var(--stk-color-border);
}

.stk-breadcrumbs__link {
  color: var(--stk-color-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.stk-breadcrumbs__link:hover {
  color: var(--stk-color-bright);
}

.stk-main {
  flex: 1 0 auto;
  display: flex;
  flex-direction: column;
}

.stk-footer {
  background: var(--stk-color-dark);
  border-top: 1px solid var(--stk-color-border);
  padding: 3rem 1.5rem;
  margin-top: auto;
}

.stk-footer__container {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.stk-footer__top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.stk-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  border-top: 1px solid var(--stk-color-border);
  padding-top: 2rem;
  color: var(--stk-color-muted);
  font-size: 0.85rem;
}

.stk-footer__ctas {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.stk-footer-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.stk-footer-nav__link {
  color: var(--stk-color-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.stk-footer-nav__link:hover {
  color: var(--stk-color-bright);
}

.stk-footer__copyright {
  margin: 0;
  color: var(--stk-color-muted);
  font-size: 0.85rem;
}