:root {
  --text-main: #1f2a38;
  --text-muted: #3f526a;
  --border: rgba(255, 255, 255, 0.05);
  --radius: 12px;
}


* {
  box-sizing: border-box;
}


*:not(i) {
  font-family: "Asap", system-ui, sans-serif;
}


html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}


body {
  font-family: "Asap", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background: #11151f;
}


#atmoCanvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}


.vignette {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: radial-gradient(
    ellipse at 50% 35%,
    rgba(255, 255, 255, 0.04) 0%,
    rgba(10, 12, 18, 0.12) 70%,
    rgba(5, 7, 12, 0.3) 100%
  );
}


header,
main,
footer {
  position: relative;
  z-index: 10;
}


.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(18px) saturate(120%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}


.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}


.brand__logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: var(--text-main);
  font-size: 16px;
  backdrop-filter: blur(10px) saturate(120%);
}


.brand__title {
  font-weight: 800;
  font-size: 17px;
  color: var(--text-main);
}


.brand__meta {
  font-size: 10px;
  color: var(--text-muted);
}


.nav {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}


.nav__btn {
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.38);
  color: var(--text-muted);
  padding: 7px 14px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition:
    color 0.12s,
    background 0.12s,
    border-color 0.12s,
    transform 0.12s;
  display: flex;
  align-items: center;
  gap: 7px;
  backdrop-filter: blur(10px) saturate(120%);
}


.nav__btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.28);
  border-color: rgba(255, 255, 255, 0.52);
  transform: translateY(-1px);
}


.nav__btn.is-active {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.34);
  border-color: rgba(255, 255, 255, 0.62);
}


.nav__btn i {
  font-size: 11px;
}


.pages {
  padding: 36px 20px 90px;
  display: grid;
  place-items: start center;
  width: 100%;
}


.page {
  display: none;
  width: min(1100px, 100%);
  opacity: 0;
}


.page.is-active {
  display: block;
  animation: pgIn 0.14s ease forwards;
}


@keyframes pgIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}


.card {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: var(--radius);
  padding: 36px;
  backdrop-filter: blur(10px) saturate(120%);
}


h1 {
  margin: 0 0 14px;
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text-main);
}


.lead {
  font-size: 17px;
  color: var(--text-muted);
  margin: 0 0 28px;
  max-width: 580px;
  font-weight: 300;
}


.panel {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 14px;
}


.panel h2 {
  margin: 0 0 14px;
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
}


.panel h2 i {
  color: rgba(50, 70, 95, 0.75);
}


.panel p {
  color: var(--text-main);
  font-weight: 300;
  margin: 0;
  font-size: 15px;
}


.cta-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 28px;
}


.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  padding: 12px 24px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.22);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.45);
  font-weight: 800;
  font-size: 12px;
  transition:
    background 0.12s,
    transform 0.12s,
    border-color 0.12s;
  backdrop-filter: blur(10px) saturate(120%);
}


.cta:hover {
  background: rgba(255, 255, 255, 0.32);
  border-color: rgba(255, 255, 255, 0.62);
  transform: translateY(-2px);
}


.cta--ghost {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.36);
}


.cta--ghost:hover {
  background: rgba(255, 255, 255, 0.24);
  border-color: rgba(255, 255, 255, 0.56);
}


.tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  background: rgba(255, 255, 255, 0.2);
  color: rgba(60, 60, 60, 0.95);
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.38);
  transition: border-color 0.12s;
}


.tag:hover {
  border-color: rgba(255, 255, 255, 0.12);
}


.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 9px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}


.badge--ongoing {
  color: rgba(200, 155, 60, 0.85);
  background: rgba(200, 140, 30, 0.1);
  border: 1px solid rgba(200, 140, 30, 0.2);
}


.badge--finished {
  color: rgba(90, 175, 100, 0.85);
  background: rgba(70, 160, 80, 0.1);
  border: 1px solid rgba(70, 160, 80, 0.2);
}


.badge--rework {
  color: rgba(210, 120, 50, 0.85);
  background: rgba(210, 100, 30, 0.1);
  border: 1px solid rgba(210, 100, 30, 0.2);
}


.badge--aborted {
  color: rgba(185, 75, 70, 0.8);
  background: rgba(180, 60, 55, 0.1);
  border: 1px solid rgba(180, 60, 55, 0.2);
}


.badge--open {
  color: rgba(70, 175, 175, 0.8);
  background: rgba(50, 160, 160, 0.1);
  border: 1px solid rgba(50, 160, 160, 0.18);
}


.badge--closed {
  color: rgba(120, 130, 150, 0.75);
  background: rgba(100, 110, 130, 0.1);
  border: 1px solid rgba(100, 110, 130, 0.18);
}


.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  align-items: center;
}


.filter-bar span {
  font-size: 11px;
  color: var(--text-muted);
  margin-right: 4px;
}


.filter-btn {
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--text-muted);
  padding: 5px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 11px;
  font-weight: 600;
  transition: all 0.12s;
  backdrop-filter: blur(8px) saturate(120%);
}


.filter-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.28);
  border-color: rgba(255, 255, 255, 0.56);
}


.filter-btn.active {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.34);
  border-color: rgba(255, 255, 255, 0.66);
}


.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(460px, 1fr));
  gap: 14px;
}


.course-card {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition:
    transform 0.12s,
    border-color 0.12s;
}


.course-card:hover {
  border-color: rgba(255, 255, 255, 0.14);
  transform: translateY(-3px);
}


.course-card__top {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}


.course-card__icon {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.22);
  color: var(--text-main);
  border-radius: 7px;
  display: grid;
  place-items: center;
  font-size: 17px;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.4);
}


.course-card__meta {
  flex: 1;
  min-width: 0;
}


.course-card__title {
  font-weight: 800;
  font-size: 15px;
  color: var(--text-main);
  margin-bottom: 2px;
}


.course-card__subtitle {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 700;
}


.course-card__badges {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
  flex-shrink: 0;
}


.course-card__text {
  font-size: 12px;
  color: #2f3e52;
  line-height: 1.55;
  font-weight: 400;
}


.rules {
  display: grid;
  gap: 12px;
}


.rule {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius);
  transition: border-color 0.12s;
}


.rule:hover {
  border-color: rgba(255, 255, 255, 0.12);
}


.rule__icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  display: grid;
  place-items: center;
  font-size: 18px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  flex-shrink: 0;
}


.rule__title {
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 3px;
  font-size: 14px;
}


.rule__text {
  font-size: 13px;
  color: var(--text-muted);
}


.rule__text a {
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}


.rule__text a:hover {
  border-color: var(--text-main);
}


.note {
  display: flex;
  gap: 14px;
  padding: 18px;
  margin-top: 20px;
  background: rgba(255, 255, 255, 0.16);
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: var(--radius);
}


.note__icon {
  font-size: 22px;
  opacity: 0.6;
}


.note__title {
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 3px;
  font-size: 14px;
}


.note__text {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 300;
}


.footer {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(18px) saturate(120%);
  border-top: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--text-muted);
  font-size: 11px;
}


.footer__right {
  font-weight: 700;
}


@media (max-width: 768px) {
  .topbar {
    flex-direction: column;
    gap: 14px;
    align-items: flex-start;
  }
  .nav {
    width: 100%;
    overflow-x: auto;
  }
  .courses-grid {
    grid-template-columns: 1fr;
  }
  .card {
    padding: 22px;
  }
  .footer {
    flex-direction: column;
    align-items: center;
    gap: 6px;
    text-align: center;
  }
}