@import url('https://fonts.googleapis.com/css2?family=Inter:wght@600;700&family=Nunito:wght@700;800;900&display=swap');

/* Hub lecții — același limbaj vizual ca Fin ABC / carduri alfabet */

/* Navigare tip echipa.org — desktop 100px, mobil 146px */
.invata-hub-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 100px;
  padding: 16px clamp(24px, 5.7vw, 82px);
  background: #f0f7ff;
  box-sizing: border-box;
}

.invata-hub-nav__brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  text-decoration: none;
}

.invata-hub-nav__logo {
  display: block;
  width: 67px;
  height: 67px;
  object-fit: contain;
}

.invata-hub-nav__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 8px 24px;
}

.invata-hub-nav__link {
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.3;
  color: #364153;
  text-decoration: none;
  white-space: nowrap;
}

.invata-hub-nav__link:hover,
.invata-hub-nav__link.is-active {
  color: #0744b4;
}

.invata-hub-hero {
  margin: 0 0 32px;
  text-align: center;
  font-weight: 900;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.25;
  color: var(--hub-heading);
}

.invata-hub-hero__line {
  display: block;
}

.invata-hub-hero__words {
  display: block;
  margin: 6px 0;
  min-height: 1.25em;
}

.invata-hub-hero__word {
  display: none;
  animation: hub-hero-word 9s infinite;
}

.invata-hub-hero__word:nth-child(1) { animation-delay: 0s; }
.invata-hub-hero__word:nth-child(2) { animation-delay: 3s; }
.invata-hub-hero__word:nth-child(3) { animation-delay: 6s; }

@keyframes hub-hero-word {
  0%, 28% { display: block; opacity: 1; }
  33%, 100% { display: none; opacity: 0; }
}

.invata-hub-intro__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: var(--hub-link);
  text-decoration: none;
}

.invata-hub-intro__cta:hover {
  color: var(--hub-accent);
}

.invata-hub-page:has(.invata-hub-nav) .invata-hub-stage {
  padding-top: 127px;
}

.invata-hub-page:has(.invata-hub-nav) .invata-hub-exit {
  top: 112px;
}

@media (max-width: 700px) {
  .invata-hub-nav {
    align-items: center;
    min-height: 146px;
    padding: 25px clamp(20px, 5vw, 32px) 22px;
    border-bottom: 2px solid #d9e2ff;
  }

  .invata-hub-nav__logo {
    width: 95px;
    height: 95px;
  }

  .invata-hub-nav__links {
    justify-content: flex-end;
    gap: 6px 16px;
  }

  .invata-hub-nav__link {
    font-size: 14px;
  }

  .invata-hub-page:has(.invata-hub-nav) .invata-hub-stage {
    padding-top: 159px;
  }

  .invata-hub-page:has(.invata-hub-nav) .invata-hub-exit {
    top: auto;
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    left: max(12px, env(safe-area-inset-left, 0px));
  }
}

html:has(.invata-hub-page) {
  height: auto;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.invata-hub-page {
  --hub-page-bg: #f0f8ff;
  --hub-nav-bg: #f0f7ff;
  --hub-card: #ffffff;
  --hub-heading: #4a54e3;
  --hub-text: #364153;
  --hub-muted: #555555;
  --hub-accent: #3db4e0;
  --hub-link: #0744b4;
  --hub-card-border: #e8eaf0;
  --hub-exit-text: #2a2706;
  --hub-promo-bg: #fff2e9;
  margin: 0;
  width: 100%;
  min-height: 100dvh;
  height: auto;
  background: var(--hub-page-bg);
  font-family: 'Nunito', system-ui, sans-serif;
  color: var(--hub-text);
  overflow-x: hidden;
  overflow-y: visible;
}

.invata-hub-page * {
  box-sizing: border-box;
}

.invata-hub-exit {
  position: fixed;
  top: 43.4px;
  left: 37.2px;
  z-index: 50;
  display: inline-flex;
  align-items: center;
  gap: 12.4px;
  padding: 12.4px 24.8px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 1.55px 4.65px rgba(0, 0, 0, 0.1), 0 1.55px 3.1px -1.55px rgba(0, 0, 0, 0.1);
  border-radius: 24.8px;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 600;
  font-size: 21.7px;
  line-height: 31px;
  letter-spacing: -0.233px;
  color: var(--hub-exit-text);
  text-decoration: none;
}

.invata-hub-exit:hover {
  background: rgba(255, 255, 255, 0.92);
}

.invata-hub-exit__icon {
  width: 27.9px;
  height: 27.9px;
  flex-shrink: 0;
}

.invata-hub-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background: var(--hub-sky);
}

html:has(.invata-hub-page),
html:has(.invata-hub-page) body {
  margin: 0;
  padding: 0;
  background: #f0f8ff;
}

.invata-hub-scene__bg {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right bottom;
  pointer-events: none;
}

.invata-hub-stage {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  width: 100%;
  min-height: calc(100dvh - 127px);
  height: auto;
  padding: 0 clamp(24px, 5.7vw, 82px) max(48px, env(safe-area-inset-bottom, 0px));
}

.invata-hub-panel {
  width: min(1273px, 100%);
  background: var(--hub-card);
  border-radius: 21px;
  padding: 40px clamp(24px, 4vw, 57px) 48px;
}

.invata-hub-panel__title {
  margin: 0 0 32px;
  font-weight: 900;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.15;
  color: var(--hub-heading);
  text-align: left;
}

.invata-hub-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 20px;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 600;
  font-size: 15px;
  line-height: 1.3;
  color: var(--hub-heading);
  text-decoration: none;
}

.invata-hub-back:hover {
  color: var(--hub-link);
}

.invata-hub-category {
  margin-bottom: 40px;
}

.invata-hub-category:last-child {
  margin-bottom: 0;
}

.invata-hub-category__title {
  margin: 0 0 20px;
  font-weight: 900;
  font-size: clamp(24px, 2.8vw, 32px);
  line-height: 1.2;
  color: var(--hub-heading);
}

.invata-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.invata-hub-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 100%;
  padding: 24px;
  background: var(--hub-card);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
  border-radius: 24px;
  border: 2px solid rgba(61, 180, 224, 0.15);
}

.invata-hub-card__icon {
  display: block;
  width: auto;
  height: 72px;
  object-fit: contain;
  flex-shrink: 0;
}

.invata-hub-card__title {
  margin: 0;
  font-weight: 800;
  font-size: 20px;
  line-height: 1.25;
  color: var(--hub-text);
}

.invata-hub-card__desc {
  margin: 0;
  flex: 1 1 auto;
  font-weight: 700;
  font-size: 14px;
  line-height: 1.45;
  color: var(--hub-muted);
}

.invata-hub-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  margin-top: auto;
  padding: 0;
  border: none;
  background: none;
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.4;
  color: var(--hub-link);
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease, transform 0.2s ease;
}

.invata-hub-card__link:hover {
  color: var(--hub-accent);
  transform: translateX(2px);
}

.invata-hub-card__arrow {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.invata-hub-intro {
  margin-top: 40px;
  padding: 32px clamp(20px, 3vw, 32px);
  background: var(--hub-promo-bg);
  border-radius: 18px;
  border-top: none;
}

.invata-hub-intro__title {
  margin: 0 0 16px;
  font-weight: 900;
  font-size: clamp(24px, 2.8vw, 32px);
  line-height: 1.2;
  color: var(--hub-heading);
}

.invata-hub-intro__text {
  margin: 0 0 16px;
  font-weight: 700;
  font-size: 16px;
  line-height: 1.55;
  color: var(--hub-text);
}

.invata-hub-intro__text:last-child {
  margin-bottom: 0;
}

/* Lecții — carduri mari ca Fin ABC */
.invata-hub-cards {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  justify-content: center;
  gap: 24px;
}

.invata-hub-cards .invata-hub-card {
  flex: 1 1 280px;
  max-width: 360px;
  min-height: 200px;
  align-items: center;
  justify-content: center;
  gap: 16px;
  text-align: center;
  text-decoration: none;
  color: var(--hub-text);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.invata-hub-cards .invata-hub-card__icon {
  height: clamp(88px, 12vw, 120px);
}

.invata-hub-cards .invata-hub-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.invata-hub-cards .invata-hub-card__title {
  font-size: clamp(18px, 2vw, 24px);
}

.invata-hub-page--lectii .invata-hub-scene {
  display: none;
}

.invata-hub-page--lectii,
.invata-hub-page--lectii .invata-hub-stage {
  background: #f0f8ff;
}

/* Pagina Lecții — layout tip meniu */
.invata-hub-page--lectii .invata-hub-panel {
  padding-top: 32px;
}

.invata-hub-page--lectii .invata-hub-panel__title {
  margin-bottom: 32px;
  text-align: center;
}

.invata-hub-page--lectii .invata-hub-back + .invata-hub-panel__title {
  margin-top: 0;
}

@media (min-width: 701px) {
  .invata-hub-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .invata-hub-cards {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    justify-content: center;
    gap: 24px;
  }

  .invata-hub-cards .invata-hub-card {
    flex: 1 1 280px;
    width: auto;
    max-width: 360px;
    min-height: 200px;
    padding: 24px;
    gap: 16px;
  }

  .invata-hub-cards .invata-hub-card__icon {
    height: clamp(88px, 12vw, 120px);
  }

  .invata-hub-cards .invata-hub-card__title {
    font-size: clamp(18px, 2vw, 24px);
  }
}

@media (max-width: 1100px) and (min-width: 701px) {
  .invata-hub-panel {
    padding: 36px 24px 32px;
  }

  .invata-hub-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .invata-hub-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .invata-hub-cards .invata-hub-card {
    flex: none;
    max-width: none;
    width: 100%;
  }
}

@media (max-width: 700px) {
  .invata-hub-exit {
    top: max(12px, env(safe-area-inset-top, 0px));
    left: max(12px, env(safe-area-inset-left, 0px));
    padding: 8px 14px;
    font-size: 15px;
    gap: 8px;
  }

  .invata-hub-exit__icon {
    width: 20px;
    height: 20px;
  }

  .invata-hub-stage {
    padding-left: 12px;
    padding-right: 12px;
    padding-bottom: max(24px, env(safe-area-inset-bottom, 0px));
  }

  .invata-hub-panel {
    padding: 28px 16px 24px;
    border-radius: 18px;
  }

  .invata-hub-panel__title {
    margin-bottom: 28px;
    font-size: clamp(30px, 8vw, 40px);
  }

  .invata-hub-category {
    margin-bottom: 36px;
  }

  .invata-hub-category__title {
    margin-bottom: 16px;
    font-size: clamp(24px, 6vw, 30px);
  }

  .invata-hub-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .invata-hub-card {
    padding: 18px 16px;
    border-radius: 18px;
    gap: 10px;
  }

  .invata-hub-card__icon {
    height: 60px;
  }

  .invata-hub-card__title {
    font-size: 18px;
  }

  .invata-hub-card__desc {
    font-size: 13px;
    line-height: 1.4;
  }

  .invata-hub-card__link {
    font-size: 15px;
  }

  .invata-hub-intro {
    margin-top: 28px;
    padding: 24px 16px;
  }

  .invata-hub-intro__text {
    font-size: 15px;
  }

  .invata-hub-page--lectii .invata-hub-panel {
    padding: 24px 14px 20px;
  }

  .invata-hub-page--lectii .invata-hub-panel__title {
    margin-bottom: 20px;
  }

  .invata-hub-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .invata-hub-cards .invata-hub-card {
    flex: none;
    width: 100%;
    max-width: none;
    min-height: 0;
    padding: 16px 14px;
    gap: 12px;
    border-radius: 18px;
  }

  .invata-hub-cards .invata-hub-card__icon {
    height: 56px;
  }

  .invata-hub-cards .invata-hub-card__title {
    font-size: 16px;
    line-height: 1.25;
  }
}

/* Telefon landscape — o coloană doar pe mobil */
@media (max-width: 700px) and (orientation: landscape) and (max-height: 520px) {
  .invata-hub-stage {
    padding-left: 16px;
    padding-right: 16px;
    padding-bottom: max(16px, env(safe-area-inset-bottom, 0px));
    min-height: 0;
  }

  .invata-hub-panel {
    padding: 24px 20px 20px;
  }

  .invata-hub-panel__title {
    margin-bottom: 16px;
    font-size: 28px;
  }

  .invata-hub-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .invata-hub-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
    overflow: visible;
  }

  .invata-hub-cards .invata-hub-card {
    flex: none;
    width: 100%;
    max-width: none;
    min-height: 0;
    aspect-ratio: auto;
    padding: 14px 12px;
    gap: 10px;
  }

  .invata-hub-cards .invata-hub-card__icon {
    height: 48px;
  }

  .invata-hub-cards .invata-hub-card__title {
    font-size: 15px;
  }
}