/* ============================================================
   INNER PAGE STYLES — shared across idea / outdated / process
   ============================================================ */

/* Back-nav row sitting just under the main nav */
.inner-crumb {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
  position: sticky;
  top: 56px;
  z-index: 60;
}
.inner-crumb-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 0;
  flex-wrap: wrap;
}
.inner-crumb a.back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink-3);
  text-decoration: none;
  font-family: var(--sans);
  font-size: 13.5px;
  letter-spacing: -0.003em;
  transition: color 0.25s ease;
}
.inner-crumb a.back:hover { color: var(--ink); }
.inner-crumb a.back .arrow { transition: transform 0.3s ease; }
.inner-crumb a.back:hover .arrow { transform: translateX(-3px); }

.inner-crumb-meta {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.inner-crumb-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

/* Hero --------------------------------------------------- */
.inner-hero {
  padding: 96px 0 80px;
  border-bottom: 1px solid var(--rule);
}
.inner-hero-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 80px;
  align-items: end;
}
@media (max-width: 880px) {
  .inner-hero-grid { grid-template-columns: 1fr; gap: 48px; }
}
.inner-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 36px;
}
.inner-hero-eyebrow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px; height: 26px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--mono);
  font-size: 10.5px;
}
.inner-hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 7.5vw, 96px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0;
  text-wrap: balance;
}
.inner-hero h1 em {
  font-style: italic;
  color: var(--ink-3);
}
.inner-hero h1 .acc {
  font-style: italic;
  color: var(--accent);
}
.inner-hero-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.inner-hero-side .lede {
  font-size: 19px;
  line-height: 1.45;
  color: var(--ink-2);
  letter-spacing: -0.005em;
  max-width: 38ch;
  margin: 0;
}
.inner-hero-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  max-width: 420px;
}
.inner-hero-meta-item .label {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-bottom: 6px;
}
.inner-hero-meta-item .val {
  font-family: var(--serif);
  font-size: 18px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

/* Generic inner section ---------------------------------- */
.inner-sec {
  padding: 96px 0;
  border-bottom: 1px solid var(--rule);
}
.inner-sec-head {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  align-items: end;
  margin-bottom: 56px;
}
@media (max-width: 880px) {
  .inner-sec-head { grid-template-columns: 1fr; gap: 24px; }
}
.inner-sec-head .eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 16px;
  display: block;
}
.inner-sec-head h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(34px, 4.2vw, 52px);
  line-height: 1.02;
  letter-spacing: -0.018em;
  color: var(--ink);
  margin: 0;
}
.inner-sec-head h2 em { font-style: italic; color: var(--ink-3); }
.inner-sec-head p.lede {
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink-2);
  letter-spacing: -0.003em;
  margin: 0;
  max-width: 56ch;
}

/* Symptoms list (Have an idea / Outdated / Process) ------ */
.sym-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
}
@media (max-width: 720px) { .sym-list { grid-template-columns: 1fr; } }
.sym-list li {
  display: grid;
  grid-template-columns: 36px 1fr;
  gap: 18px;
  align-items: baseline;
  padding: 24px 16px 24px 0;
  border-bottom: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}
.sym-list li:nth-child(2n) { border-right: none; }
@media (max-width: 720px) { .sym-list li { border-right: none; } }
.sym-list .sym-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.sym-list .sym-text {
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.32;
  color: var(--ink-2);
  letter-spacing: -0.01em;
}
.sym-list .sym-text em { font-style: italic; color: var(--ink-3); }

/* Phase rail — used by all three pages with different content */
.phase-rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
@media (max-width: 880px) { .phase-rail { grid-template-columns: 1fr 1fr; } }
@media (max-width: 540px) { .phase-rail { grid-template-columns: 1fr; } }
.phase-cell {
  padding: 32px 28px;
  border-right: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
}
.phase-cell:last-child { border-right: none; }
@media (max-width: 880px) {
  .phase-cell:nth-child(2n) { border-right: none; }
  .phase-cell:nth-child(-n+2) { border-bottom: 1px solid var(--rule); }
}
.phase-cell-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.phase-cell-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.phase-cell-title {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.012em;
  color: var(--ink);
}
.phase-cell-week {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-left: auto;
}
.phase-cell p {
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0;
  letter-spacing: -0.003em;
}
.phase-cell ul {
  list-style: none;
  padding: 0;
  margin: 4px 0 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.phase-cell ul li {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
  padding-left: 16px;
  position: relative;
}
.phase-cell ul li::before {
  content: '';
  position: absolute;
  left: 0; top: 7px;
  width: 8px;
  height: 1px;
  background: var(--accent);
}

/* Q&A ---------------------------------------------------- */
.qa-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
}
.qa-list details {
  border-bottom: 1px solid var(--rule);
  padding: 26px 0;
}
.qa-list summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: baseline;
  gap: 24px;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.012em;
  color: var(--ink);
  transition: color 0.25s ease;
}
.qa-list summary::-webkit-details-marker { display: none; }
.qa-list summary::before {
  content: '+';
  font-family: var(--mono);
  font-size: 18px;
  color: var(--accent);
  transition: transform 0.3s ease;
  display: inline-block;
  width: 16px;
}
.qa-list details[open] summary::before { content: '−'; }
.qa-list details[open] summary { color: var(--accent); }
.qa-list .qa-body {
  padding: 14px 0 0 40px;
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 64ch;
  letter-spacing: -0.003em;
}

/* Inner CTA strip --------------------------------------- */
.inner-cta {
  padding: 120px 0;
  border-bottom: 1px solid var(--rule);
}
.inner-cta-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: end;
}
@media (max-width: 880px) { .inner-cta-inner { grid-template-columns: 1fr; gap: 32px; } }
.inner-cta h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(40px, 5.5vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.022em;
  color: var(--ink);
  margin: 0;
}
.inner-cta h2 em { font-style: italic; color: var(--accent); }
.inner-cta-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}

/* Page-specific visual containers ----------------------- */
.viz-frame {
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--bg-elev);
  padding: 32px;
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] .viz-frame { background: #131311; }
.viz-corner {
  position: absolute;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
  pointer-events: none;
}
.viz-corner.tl { top: 12px; left: 14px; }
.viz-corner.tr { top: 12px; right: 14px; }
.viz-corner.bl { bottom: 12px; left: 14px; }
.viz-corner.br { bottom: 12px; right: 14px; }

/* ===== Page: IDEA — sketch → wireframe → screen ====== */
.idea-trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
  margin-top: 24px;
}
@media (max-width: 720px) { .idea-trio { grid-template-columns: 1fr; gap: 24px; } }
.idea-stage {
  padding: 24px 22px;
  border-right: 1px dashed var(--rule-strong);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
}
.idea-stage:last-child { border-right: none; }
@media (max-width: 720px) { .idea-stage { border-right: none; border-bottom: 1px dashed var(--rule-strong); padding-bottom: 24px; } }
.idea-stage-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
}
.idea-stage-title {
  font-family: var(--serif);
  font-size: 18px;
  letter-spacing: -0.012em;
  color: var(--ink);
}
.idea-stage-when {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}
.idea-art {
  aspect-ratio: 4 / 3;
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}
.idea-art img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: top center;
}
.idea-art-sketch {
  background:
    linear-gradient(var(--bg), var(--bg)),
    radial-gradient(circle at 25% 25%, var(--rule-strong) 1px, transparent 1px);
  background-size: 100% 100%, 18px 18px;
  background-blend-mode: normal, normal;
  background-color: var(--bg);
  border: 1px solid var(--rule-strong);
}
.idea-art-wire {
  background: var(--bg);
  border: 1px solid var(--rule-strong);
}
.idea-art-live {
  background: var(--ink);
  border: 1px solid var(--ink);
  color: var(--bg);
}
[data-theme="dark"] .idea-art-live { background: #f6f4ef; color: #141412; border-color: #f6f4ef; }
.idea-stage-cap {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13.5px;
  color: var(--ink-3);
  line-height: 1.45;
  letter-spacing: -0.003em;
}

/* ===== Page: OUTDATED — stack diagram ================== */
.stack-frame {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: stretch;
}
@media (max-width: 720px) { .stack-frame { grid-template-columns: 1fr; } }
.stack-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.stack-col-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 6px;
}
.stack-col-head .h {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--ink);
  letter-spacing: -0.012em;
}
.stack-col-head .tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.stack-layer {
  display: grid;
  grid-template-columns: 90px 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  background: var(--bg);
}
.stack-layer-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.stack-layer-name {
  font-family: var(--serif);
  font-size: 16px;
  letter-spacing: -0.008em;
  color: var(--ink);
}
.stack-layer-state {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.stack-layer.is-broken { border-color: var(--rule-strong); }
.stack-layer.is-broken .stack-layer-state { color: var(--ink-4); }
.stack-layer.is-keep { border-color: var(--rule-strong); }
.stack-layer.is-keep .stack-layer-state { color: var(--ink-3); }
.stack-layer.is-replace {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--bg));
}
.stack-layer.is-replace .stack-layer-state { color: var(--accent); }

/* ===== Page: PROCESS — manual → automated diagram ====== */
.flow-frame {
  margin-top: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
@media (max-width: 720px) { .flow-frame { grid-template-columns: 1fr; } }
.flow-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg);
  position: relative;
}
.flow-col.is-after { background: color-mix(in srgb, var(--accent) 6%, var(--bg)); border-color: var(--accent); }
.flow-col-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}
.flow-col-head .h {
  font-family: var(--serif);
  font-size: 20px;
  color: var(--ink);
  letter-spacing: -0.012em;
}
.flow-col-head .meta {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
}
.flow-step {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 14px;
  align-items: center;
  font-family: var(--sans);
  font-size: 14px;
  color: var(--ink-2);
  letter-spacing: -0.003em;
  padding: 8px 0;
}
.flow-step-dot {
  width: 22px; height: 22px;
  border-radius: 4px;
  border: 1px solid var(--rule-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
}
.flow-col.is-after .flow-step-dot {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-ink);
}
.flow-step.is-pain { color: var(--ink-3); }
.flow-step .label {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
  margin-left: 8px;
}
.flow-summary {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
}
.flow-summary .num {
  font-family: var(--serif);
  font-style: italic;
  font-size: 26px;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.flow-col.is-after .flow-summary .num { color: var(--accent); }
.flow-summary .meta {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-4);
  text-align: right;
}

/* Reveal --------------------------------------------------- */
.inner-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s cubic-bezier(.2,.7,.2,1), transform 0.7s cubic-bezier(.2,.7,.2,1);
}
.inner-reveal.is-in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .inner-reveal { opacity: 1 !important; transform: none !important; }
}