.tutorials-page {
  min-height: 100vh;
  color: var(--ink);
  background:
    linear-gradient(90deg, transparent 49.9%, rgba(222, 222, 213, 0.32) 50%, transparent 50.1%),
    var(--canvas);
}

.tutorials-topbar {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  padding: 0 4vw;
  background: rgba(255, 254, 249, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.tutorials-topbar nav {
  display: flex;
  gap: 8px;
}

.tutorials-topbar nav a {
  padding: 8px 11px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 750;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 7px;
}

.tutorials-topbar nav a:hover {
  color: var(--green-dark);
  background: white;
}

.tutorials-shell {
  width: min(1440px, 92vw);
  margin: 0 auto;
  padding: 48px 0 68px;
}

.tutorials-hero {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 7vw;
  align-items: end;
  margin-bottom: 36px;
}

.tutorials-hero h1 {
  margin: 8px 0 0;
  font-family: var(--display);
  font-size: clamp(44px, 5.6vw, 76px);
  font-weight: 450;
  letter-spacing: -0.055em;
  line-height: 0.97;
}

.tutorial-progress-card {
  padding: 18px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.tutorial-progress-card > div:first-child {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 750;
}

.tutorial-progress-card .progress-track {
  width: 100%;
}

.tutorial-progress-card p {
  margin: 11px 0 0;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.5;
}

.tutorials-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.tutorial-catalog,
.tutorial-detail {
  background: var(--paper);
  border: 1px solid #d8d9d1;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.tutorial-catalog {
  position: sticky;
  top: 18px;
  padding: 14px;
}

.tutorial-search {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0 10px;
  background: #f3f3ed;
  border: 1px solid var(--line);
  border-radius: 7px;
}

.tutorial-search svg {
  width: 15px;
  fill: none;
  stroke: var(--muted);
  stroke-width: 1.8;
}

.tutorial-search input {
  width: 100%;
  min-height: 38px;
  color: var(--ink);
  font-size: 10px;
  background: transparent;
  border: 0;
  outline: 0;
}

.tutorial-list {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.tutorial-list-button {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  gap: 9px;
  align-items: center;
  width: 100%;
  padding: 10px;
  color: var(--muted);
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
}

.tutorial-list-button:hover {
  background: #f5f5ef;
}

.tutorial-list-button.active {
  color: white;
  background: var(--nav-active, #2a4338);
}

.tutorial-list-icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  color: var(--nav);
  font: 800 9px var(--mono);
  background: var(--lime);
  border-radius: 7px;
}

.tutorial-list-copy {
  min-width: 0;
}

.tutorial-list-copy strong,
.tutorial-list-copy small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tutorial-list-copy strong {
  color: inherit;
  font-size: 10px;
}

.tutorial-list-copy small {
  margin-top: 1px;
  color: #89958e;
  font-size: 8px;
}

.tutorial-list-state {
  color: var(--green);
  font-size: 12px;
}

.tutorial-list-button.active .tutorial-list-state {
  color: var(--lime);
}

.tutorial-empty {
  padding: 22px 8px;
  color: var(--muted);
  font-size: 10px;
  text-align: center;
}

.tutorial-tip {
  margin-top: 14px;
  padding: 12px;
  color: #526159;
  background: var(--green-soft);
  border-radius: 7px;
}

.tutorial-tip strong {
  font-size: 10px;
}

.tutorial-tip p {
  margin: 3px 0 0;
  font-size: 9px;
  line-height: 1.5;
}

.tutorial-detail {
  padding: clamp(22px, 4vw, 48px);
}

.tutorial-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--line);
}

.tutorial-language {
  display: inline-grid;
  min-width: 48px;
  height: 24px;
  place-items: center;
  margin-bottom: 14px;
  padding: 0 8px;
  color: var(--nav);
  font: 850 8px var(--mono);
  background: var(--lime);
  border-radius: 999px;
}

.tutorial-heading h2 {
  margin: 8px 0 10px;
  font-family: var(--display);
  font-size: clamp(34px, 4.2vw, 54px);
  font-weight: 450;
  letter-spacing: -0.04em;
  line-height: 1.02;
}

.tutorial-heading-copy > p:not(.section-kicker) {
  max-width: 760px;
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.tutorial-course-link {
  flex: 0 0 auto;
  text-decoration: none;
}

.tutorial-steps-section,
.tutorial-lab {
  padding-top: 34px;
}

.tutorial-section-heading {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 18px;
}

.tutorial-section-heading > span {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  color: var(--nav);
  font: 850 9px var(--mono);
  background: var(--lime);
  border-radius: 50%;
}

.tutorial-section-heading p,
.tutorial-section-heading h3 {
  margin: 0;
}

.tutorial-section-heading h3 {
  font-size: 15px;
}

.tutorial-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.tutorial-step {
  padding: 15px;
  background: #f7f6f0;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.tutorial-step > span {
  color: var(--orange);
  font: 800 9px var(--mono);
}

.tutorial-step h4 {
  margin: 8px 0 5px;
  font-size: 11px;
}

.tutorial-step p {
  margin: 0;
  color: var(--muted);
  font-size: 9px;
  line-height: 1.55;
}

.tutorial-lab-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.8fr);
  gap: 12px;
}

.tutorial-code-card,
.tutorial-preview-card {
  overflow: hidden;
  border-radius: 9px;
}

.tutorial-code-card {
  background: var(--nav);
}

.tutorial-code-toolbar,
.tutorial-preview-heading {
  display: flex;
  min-height: 44px;
  align-items: center;
  justify-content: space-between;
  padding: 0 13px;
}

.tutorial-code-toolbar {
  color: #eaf0ec;
  font: 9px var(--mono);
  background: #202e27;
}

.tutorial-code-toolbar > div {
  display: flex;
  gap: 5px;
}

.tutorial-code-toolbar button {
  padding: 5px 7px;
  color: #bdc9c1;
  font: 8px var(--sans);
  background: transparent;
  border: 1px solid #53635a;
  border-radius: 4px;
  cursor: pointer;
}

#tutorialCode {
  display: block;
  width: 100%;
  height: 360px;
  padding: 16px;
  color: #dce7e0;
  font: 10px/1.6 var(--mono);
  background: #16211c;
  border: 0;
  outline: 0;
  resize: vertical;
  tab-size: 4;
}

.tutorial-runbar {
  display: flex;
  min-height: 54px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 11px;
  color: #98a89f;
  font-size: 8px;
  background: #202e27;
}

.tutorial-preview-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  background: #eef0ea;
  border: 1px solid var(--line);
}

.tutorial-preview-heading {
  justify-content: flex-start;
  gap: 7px;
  color: var(--ink);
  font-size: 9px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.tutorial-preview {
  display: grid;
  min-height: 360px;
  flex: 1;
  place-items: center;
  padding: 18px;
}

.tutorial-actions {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 10px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.tutorial-actions #nextTutorial {
  justify-self: end;
}

@media (max-width: 1050px) {
  .tutorial-lab-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .tutorials-hero,
  .tutorials-layout {
    grid-template-columns: 1fr;
  }

  .tutorial-catalog {
    position: static;
  }

  .tutorial-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .tutorials-topbar {
    padding: 10px 16px;
  }

  .tutorials-topbar nav a:nth-last-child(-n + 2) {
    display: none;
  }

  .tutorials-shell {
    width: min(100% - 28px, 720px);
    padding-top: 32px;
  }

  .tutorial-list,
  .tutorial-steps {
    grid-template-columns: 1fr;
  }

  .tutorial-heading {
    flex-direction: column;
  }

  .tutorial-actions {
    grid-template-columns: 1fr 1fr;
  }

  #completeTutorial {
    grid-column: 1 / -1;
    grid-row: 1;
  }
}