/* Formation-led visual system: exploratory rather than template-like */
:root {
  --grid-line: color-mix(in srgb, var(--text) 5%, transparent);
  --accent-2: color-mix(in srgb, var(--teal) 72%, var(--blue));
  --working: color-mix(in srgb, var(--panel) 88%, var(--blue) 12%);
}

body {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    radial-gradient(circle at 12% 8%, color-mix(in srgb, var(--blue) 12%, transparent), transparent 28rem),
    radial-gradient(circle at 86% 28%, color-mix(in srgb, var(--teal) 10%, transparent), transparent 24rem);
  background-size: 42px 42px, 42px 42px, auto, auto;
  background-position: -1px -1px, -1px -1px, 0 0, 0 0;
}

.site-header {
  border-radius: .55rem;
  box-shadow: 0 10px 28px rgba(20, 32, 52, .09);
}

.wordmark {
  display: grid;
  gap: .05rem;
}

.wordmark-name {
  font-size: .98rem;
  line-height: 1.1;
}

.wordmark-note {
  color: var(--muted);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.brand-mark { display: none; }

.button,
.theme-toggle {
  border-radius: .45rem;
}

.invention-hero {
  min-height: auto;
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(4rem, 8vw, 7rem);
}

.section-code {
  margin: 0 0 .7rem;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.invention-hero h1 {
  max-width: 13ch;
  font-size: clamp(2.9rem, 7vw, 5.9rem);
}

.formation-workbench {
  position: relative;
  width: min(100%, 500px);
  padding: clamp(1.15rem, 3vw, 1.6rem);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  box-shadow: var(--shadow);
}

.formation-workbench::before,
.formation-workbench::after {
  content: "";
  position: absolute;
  width: 1.15rem;
  height: 1.15rem;
  pointer-events: none;
}

.formation-workbench::before {
  top: -.35rem;
  left: -.35rem;
  border-top: 2px solid var(--teal);
  border-left: 2px solid var(--teal);
}

.formation-workbench::after {
  right: -.35rem;
  bottom: -.35rem;
  border-right: 2px solid var(--blue);
  border-bottom: 2px solid var(--blue);
}

.bench-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.bench-kicker,
.output-label,
.background-label,
.role-label {
  margin: 0 0 .25rem;
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .69rem;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.bench-header h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 2rem);
}

.bench-status {
  padding: .28rem .45rem;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .65rem;
  text-transform: uppercase;
}

.bench-instruction {
  margin: .85rem 0;
  color: var(--muted);
  font-size: .83rem;
}

.formation-modules {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .7rem;
}

.formation-module {
  position: relative;
  display: grid;
  gap: .18rem;
  min-height: 8.3rem;
  padding: .85rem;
  border: 1px solid var(--border);
  border-radius: .25rem;
  background: var(--solid);
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}

.formation-module:hover,
.formation-module:focus-visible {
  transform: translateY(-2px);
  border-color: var(--blue);
}

.formation-module.is-active {
  border-color: var(--teal);
  background: var(--working);
  box-shadow: inset 3px 0 0 var(--teal);
}

.module-code {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .1em;
}

.module-title {
  align-self: end;
  font-size: .98rem;
  font-weight: 850;
}

.module-detail {
  color: var(--muted);
  font-size: .74rem;
  line-height: 1.35;
}

.formation-output {
  margin-top: .8rem;
  padding: 1rem;
  border-left: 3px solid var(--accent-2);
  background: color-mix(in srgb, var(--soft) 72%, transparent);
}

.formation-output h3 {
  margin-bottom: .45rem;
  font-size: 1.15rem;
}

.formation-output p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: .86rem;
}

.formation-output.is-changing {
  animation: output-shift .28s ease;
}

.shared-pattern {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: .9rem 0 0;
  padding-top: .8rem;
  border-top: 1px dashed var(--border);
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .72rem;
}

.shared-pattern span {
  color: var(--text);
  font-weight: 800;
}

.section {
  padding-top: clamp(3.8rem, 7vw, 6.5rem);
  padding-bottom: clamp(3.8rem, 7vw, 6.5rem);
}

.section-heading {
  position: relative;
  padding-left: 1.15rem;
}

.section-heading::before {
  content: "";
  position: absolute;
  left: 0;
  top: .2rem;
  bottom: .2rem;
  width: 2px;
  background: linear-gradient(var(--blue), var(--teal));
}

.role-timeline .timeline-item {
  border-radius: .35rem;
  box-shadow: 0 10px 24px rgba(28, 45, 73, .08);
}

.role-timeline .timeline-item summary {
  min-height: 4.4rem;
}

.role-timeline .timeline-item summary::after {
  border-radius: .25rem;
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding-top: 1.1rem;
}

.role-grid > div {
  padding-right: 1rem;
  border-right: 1px solid var(--border);
}

.role-grid > div:last-child {
  padding-right: 0;
  border-right: 0;
}

.role-grid p {
  margin: .25rem 0 0;
  font-size: .9rem;
}

.background-rail {
  position: relative;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.background-entry {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1.2rem;
  padding: clamp(1.4rem, 4vw, 2.4rem) 0;
}

.background-entry + .background-entry {
  border-top: 1px solid var(--border);
}

.background-index {
  display: grid;
  place-items: center;
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid var(--border);
  color: var(--blue);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-weight: 850;
}

.background-entry h3 {
  margin-bottom: .55rem;
  font-size: clamp(1.35rem, 3vw, 2.1rem);
}

.background-entry p:not(.background-label) {
  max-width: 72ch;
  margin: 0;
  color: var(--muted);
}

.study-line {
  margin-top: .9rem !important;
  color: var(--text) !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .78rem;
  line-height: 1.8;
}

.invention-contact {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 2rem;
  border-radius: .45rem;
  text-align: left;
}

.invention-contact h2 {
  max-width: 18ch;
  margin-inline: 0;
}

.invention-contact .button {
  white-space: nowrap;
}

footer {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@keyframes output-shift {
  from { opacity: .35; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 880px) {
  .formation-workbench { width: 100%; }
  .role-grid { grid-template-columns: 1fr; }
  .role-grid > div {
    padding: 0 0 .8rem;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
  .role-grid > div:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }
  .invention-contact {
    grid-template-columns: 1fr;
    align-items: start;
  }
}

@media (max-width: 620px) {
  .brand > span:last-child { display: inline; }
  .wordmark-note { display: none !important; }
  .wordmark-name { font-size: .9rem; }
  .site-header { gap: .6rem; }
  .formation-modules { grid-template-columns: 1fr; }
  .formation-module { min-height: 6.8rem; }
  .shared-pattern { display: grid; gap: .3rem; }
  .background-entry { grid-template-columns: 2.8rem 1fr; }
  .invention-contact .button {
    width: 100%;
    white-space: normal;
    overflow-wrap: anywhere;
  }
}

@media (prefers-reduced-motion: reduce) {
  .formation-module,
  .formation-output { animation: none !important; transition: none !important; }
}