.project-card-shell {
  position: relative;
  min-width: 0;
}

.project-card-shell > .project-card {
  height: 100%;
}

.tool-card-help,
.tool-tutorial-open,
.tool-tutorial-close {
  font: inherit;
}

.tool-card-help {
  position: absolute;
  z-index: 8;
  left: 1.2rem;
  top: 1.2rem;
  width: 2.25rem;
  height: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(231, 223, 209, .22);
  border-radius: 999px;
  color: rgba(231, 223, 209, .72);
  background: rgba(11, 12, 13, .56);
  backdrop-filter: blur(10px);
  cursor: pointer;
  transition: transform .2s, border-color .2s, background .2s, color .2s;
}

.tool-card-help > span:first-child {
  display: grid;
  place-items: center;
  font-family: ui-serif, Georgia, serif;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  transform: translateY(-.03em);
}

.tool-card-help .tool-help-label {
  display: none;
}

.tool-card-help:hover,
.tool-card-help:focus-visible {
  transform: translateY(-2px);
  border-color: #f7a35a;
  color: #f7a35a;
  background: rgba(216, 112, 44, .1);
  outline: none;
}

.tool-tutorial-brief {
  --tutorial-accent: #f7a35a;
  position: relative;
  width: min(1120px, calc(100% - 32px));
  margin: .5rem auto 2.5rem;
  padding: 1.15rem 0 1.25rem;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: .9rem;
  align-items: center;
  border: 0;
  border-bottom: 1px solid rgba(231, 223, 209, .11);
  background: transparent;
  color: #e7dfd1;
}

body[data-tool-tutorial="ecg"] .tool-tutorial-brief {
  --tutorial-accent: #89b4fa;
  width: 100%;
  margin: 0 0 1.4rem;
}

.tool-tutorial-brief-mark {
  width: 2.2rem;
  height: 2.2rem;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--tutorial-accent) 58%, transparent);
  border-radius: 999px;
  color: var(--tutorial-accent);
  font-family: ui-serif, Georgia, serif;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  padding-bottom: .05em;
}

.tool-tutorial-kicker {
  display: block;
  margin-bottom: .22rem;
  color: var(--tutorial-accent);
  font-size: .62rem;
  font-weight: 850;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.tool-tutorial-brief h2 {
  margin: 0 0 .28rem;
  color: #f0e8dc;
  font-family: ui-serif, Georgia, serif;
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  line-height: 1.05;
}

.tool-tutorial-brief p {
  max-width: 74rem;
  margin: 0;
  color: rgba(231, 223, 209, .72);
  font-size: .88rem;
  line-height: 1.55;
}

.tool-tutorial-open {
  min-height: 2.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  border: 0;
  border-bottom: 1px solid color-mix(in srgb, var(--tutorial-accent) 55%, transparent);
  color: var(--tutorial-accent);
  background: transparent;
  padding: .5rem .15rem;
  font-size: .66rem;
  font-weight: 850;
  letter-spacing: .09em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color .2s, color .2s, transform .2s;
}

.tool-tutorial-open::before {
  content: '?';
  display: inline-grid;
  place-items: center;
  font-family: ui-serif, Georgia, serif;
  font-size: 1rem;
  line-height: 1;
  transform: translateY(-.03em);
}

.tool-tutorial-open:hover,
.tool-tutorial-open:focus-visible {
  color: #0b0c0d;
  color: var(--tutorial-accent);
  border-color: var(--tutorial-accent);
  transform: translateX(3px);
  outline: none;
}

.tool-tutorial-dialog {
  width: min(880px, calc(100% - 32px));
  max-height: min(88vh, 900px);
  margin: auto;
  padding: 0;
  border: 1px solid rgba(231, 223, 209, .16);
  color: #e7dfd1;
  background: #101113;
  box-shadow: 0 32px 100px rgba(0, 0, 0, .68);
}

.tool-tutorial-dialog::backdrop {
  background: rgba(4, 5, 6, .82);
  backdrop-filter: blur(7px);
}

.tool-tutorial-dialog-shell {
  max-height: min(88vh, 900px);
  overflow: auto;
}

.tool-tutorial-dialog-header {
  position: sticky;
  z-index: 2;
  top: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.3rem 1rem;
  border-bottom: 1px solid rgba(231, 223, 209, .11);
  background: rgba(16, 17, 19, .96);
  backdrop-filter: blur(12px);
}

.tool-tutorial-dialog-header span {
  color: #f7a35a;
  font-size: .62rem;
  font-weight: 850;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.tool-tutorial-dialog h2 {
  margin: .35rem 0 0;
  color: #f0e8dc;
  font-family: ui-serif, Georgia, serif;
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  line-height: 1;
}

.tool-tutorial-close {
  width: 2.65rem;
  height: 2.65rem;
  flex: 0 0 auto;
  border: 1px solid rgba(231, 223, 209, .22);
  color: #e7dfd1;
  background: rgba(0, 0, 0, .28);
  font-size: 1.5rem;
  cursor: pointer;
}

.tool-tutorial-close:hover,
.tool-tutorial-close:focus-visible {
  border-color: #f7a35a;
  color: #f7a35a;
  outline: none;
}

.tool-tutorial-dialog-brief {
  margin: 0;
  padding: 1.15rem 1.3rem;
  border-bottom: 1px solid rgba(231, 223, 209, .1);
  color: rgba(231, 223, 209, .82);
  font-size: 1rem;
  line-height: 1.65;
}

.tool-tutorial-steps {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0 1.3rem;
  list-style: none;
}

.tool-tutorial-steps li {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1rem;
  padding: 1.05rem 0;
  border-bottom: 1px solid rgba(231, 223, 209, .1);
}

.tool-tutorial-steps li > span {
  color: #f7a35a;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: .7rem;
  letter-spacing: .1em;
}

.tool-tutorial-steps h3 {
  margin: 0 0 .35rem;
  color: #f0e8dc;
  font-size: 1rem;
}

.tool-tutorial-steps p {
  margin: 0;
  color: rgba(231, 223, 209, .67);
  font-size: .88rem;
  line-height: 1.6;
}

.tool-tutorial-dialog footer {
  padding: 1rem 1.3rem 1.25rem;
}

.tool-tutorial-dialog footer p {
  margin: 0;
  color: rgba(231, 223, 209, .45);
  font-size: .7rem;
  line-height: 1.5;
}

@media (max-width: 720px) {
  .tool-card-help {
    left: .75rem;
    top: .75rem;
  }

  .tool-card-help .tool-help-label {
    display: none;
  }

  .tool-tutorial-brief {
    grid-template-columns: auto minmax(0, 1fr);
    margin-bottom: 1.25rem;
  }

  .tool-tutorial-open {
    grid-column: 2;
    justify-self: start;
  }

  .tool-tutorial-dialog {
    width: min(100% - 18px, 880px);
    max-height: 94vh;
  }

  .tool-tutorial-dialog-shell {
    max-height: 94vh;
  }

  .tool-tutorial-steps li {
    grid-template-columns: 2.25rem minmax(0, 1fr);
    gap: .65rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tool-card-help,
  .tool-tutorial-open {
    transition: none;
  }
}

@media print {
  .tool-card-help,
  .tool-tutorial-brief,
  .tool-tutorial-dialog {
    display: none !important;
  }
}