/* THE SYSTEMS PAVILION — hero + The Desk
   Material language: steel / charcoal / concrete / bone / moss / mineral / copper.
   Spacing scale (Fibonacci, felt not drawn): 8 13 21 34 55 89 144 */

:root {
  --pav-steel: #0b0c0d;
  --pav-charcoal: #16181a;
  --pav-concrete: #8a857c;
  --pav-concrete-deep: #5c574f;
  --pav-bone: #ebe4d6;
  --pav-stone: #2a2c2e;
  --pav-moss: #3a4a3a;
  --pav-moss-deep: #243028;
  --pav-mist: #9aa4a0;
  --pav-mineral: #d8ddd8;
  --pav-teal: #7a9a94;
  --pav-copper: #a86b4a;
  --pav-ink: #f3eee4;
  --pav-muted: rgba(243, 238, 228, 0.62);
  --pav-line: rgba(243, 238, 228, 0.14);
  --pav-glass: rgba(210, 220, 218, 0.08);
  --pav-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --pav-sans: "Satoshi", ui-sans-serif, system-ui, -apple-system, sans-serif;
  --pav-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --pav-max: 1180px;
  --fib-8: 0.5rem;
  --fib-13: 0.8125rem;
  --fib-21: 1.3125rem;
  --fib-34: 2.125rem;
  --fib-55: 3.4375rem;
  --fib-89: 5.5625rem;
  --fib-144: 9rem;
}

.shell-pavilion {
  background: var(--pav-steel);
  color: var(--pav-ink);
  font-family: var(--pav-sans);
}

.shell-pavilion .site-header {
  width: min(var(--pav-max), calc(100% - 2.5rem));
  background: rgba(11, 12, 13, 0.72);
  border-bottom-color: var(--pav-line);
  backdrop-filter: blur(10px);
}

.shell-pavilion .identity small,
.shell-pavilion .site-header nav a {
  color: var(--pav-muted);
}

.shell-pavilion .identity b {
  background: var(--pav-bone);
  color: var(--pav-steel);
  border-color: var(--pav-bone);
}

.shell-pavilion .site-header nav a:hover {
  color: var(--pav-ink);
}

.shell-pavilion .nav-cta {
  border-color: rgba(243, 238, 228, 0.35);
  color: var(--pav-ink) !important;
}

.shell-pavilion .skip {
  background: var(--pav-bone);
  color: var(--pav-steel);
}

.shell-pavilion a:focus-visible,
.shell-pavilion button:focus-visible {
  outline-color: var(--pav-mineral);
}

/* —— HERO —— */
.pavilion-hero {
  position: relative;
  width: 100%;
  max-width: none;
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  align-content: end;
  padding: 0 0 var(--fib-55);
  overflow: clip;
  isolation: isolate;
}

.pavilion-backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: var(--pav-steel);
  overflow: hidden;
}

.pavilion-backdrop picture,
.pavilion-backdrop-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.pavilion-backdrop-img {
  object-fit: cover;
  object-position: 62% 42%;
}

.pavilion-backdrop::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(
      90deg,
      rgba(11, 12, 13, 0.72) 0%,
      rgba(11, 12, 13, 0.48) 28%,
      rgba(11, 12, 13, 0.18) 48%,
      rgba(11, 12, 13, 0.08) 62%,
      rgba(11, 12, 13, 0.22) 100%
    ),
    linear-gradient(
      180deg,
      rgba(11, 12, 13, 0.28) 0%,
      rgba(11, 12, 13, 0.05) 34%,
      rgba(11, 12, 13, 0.35) 72%,
      rgba(11, 12, 13, 0.78) 100%
    );
}

.pavilion-backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    linear-gradient(90deg, transparent 37.5%, rgba(216, 221, 216, 0.06) 38%, rgba(216, 221, 216, 0.1) 38.35%, rgba(216, 221, 216, 0.03) 39%, transparent 42%),
    linear-gradient(90deg, transparent 61%, rgba(216, 221, 216, 0.04) 61.4%, transparent 62.2%),
    repeating-linear-gradient(
      90deg,
      transparent 0,
      transparent 89px,
      rgba(243, 238, 228, 0.025) 89px,
      rgba(243, 238, 228, 0.025) 90px
    );
}

.pavilion-structure {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.pavilion-structure .beam {
  position: absolute;
  background: linear-gradient(180deg, #1a1c1e, #0e1012);
  box-shadow: inset 1px 0 0 rgba(243, 238, 228, 0.06);
}

.pavilion-structure .beam-l {
  left: 0;
  top: 0;
  bottom: 0;
  width: clamp(1.2rem, 3vw, 2.4rem);
}

.pavilion-structure .beam-r {
  right: 0;
  top: 0;
  bottom: 21%;
  width: clamp(0.8rem, 2vw, 1.6rem);
  opacity: 0.55;
}

.pavilion-structure .lintel {
  left: 0;
  right: 0;
  top: 0;
  height: clamp(1.5rem, 4vh, 3rem);
  background: linear-gradient(180deg, #121416, #1c1e20);
  border-bottom: 1px solid rgba(243, 238, 228, 0.08);
}

.pavilion-structure .sill {
  left: 0;
  right: 0;
  bottom: 0;
  height: clamp(4rem, 12vh, 7.5rem);
  background:
    linear-gradient(180deg, rgba(90, 85, 79, 0.35), rgba(42, 44, 46, 0.95) 40%, #1a1b1c),
    repeating-linear-gradient(
      90deg,
      rgba(138, 133, 124, 0.08) 0,
      rgba(138, 133, 124, 0.08) 2px,
      transparent 2px,
      transparent 34px
    );
  border-top: 1px solid rgba(243, 238, 228, 0.1);
}

.pavilion-structure .glass-plane {
  position: absolute;
  left: 38.2%;
  right: 8%;
  top: 12%;
  bottom: 18%;
  border: 1px solid rgba(216, 221, 216, 0.14);
  background:
    linear-gradient(135deg, rgba(216, 221, 216, 0.05), transparent 42%),
    linear-gradient(180deg, rgba(11, 12, 13, 0.02), rgba(11, 12, 13, 0.12));
  box-shadow:
    inset 0 0 0 1px rgba(11, 12, 13, 0.18),
    inset 34px 0 55px rgba(11, 12, 13, 0.06);
}

.pavilion-hero-inner {
  position: relative;
  z-index: 2;
  width: min(var(--pav-max), calc(100% - 2.5rem));
  margin-inline: auto;
  display: grid;
  gap: var(--fib-21);
  padding-top: var(--fib-55);
}

.pavilion-identity {
  display: grid;
  gap: var(--fib-8);
}

.pavilion-identity strong {
  font: 700 0.72rem / 1.3 var(--pav-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pav-bone);
}

.pavilion-identity span {
  font: 600 0.68rem / 1.4 var(--pav-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pav-muted);
}

.pavilion-h1-slot {
  /* Fixed composition height — prevents CLS during typewriter */
  min-height: clamp(6.5rem, 24vw, 12.5rem);
  display: grid;
  align-content: start;
  max-width: 14ch;
}

.pavilion-h1-static {
  margin: 0;
  font-family: var(--pav-serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 9.5vw, 8.5rem);
  line-height: 0.92;
  letter-spacing: -0.045em;
  color: var(--pav-bone);
  text-wrap: balance;
}

.pavilion-h1-live {
  margin: 0;
  font-family: var(--pav-serif);
  font-weight: 600;
  font-size: clamp(2.4rem, 9.5vw, 8.5rem);
  line-height: 0.92;
  letter-spacing: -0.045em;
  color: var(--pav-bone);
  white-space: pre-line;
  min-height: inherit;
}

.pavilion-h1-live::after {
  content: "▌";
  margin-left: 0.08em;
  color: var(--pav-teal);
  font-size: 0.72em;
  vertical-align: 0.08em;
  opacity: 0.7;
  animation: pavilion-caret 1.1s steps(1) infinite;
}

@keyframes pavilion-caret {
  50% { opacity: 0; }
}

body.is-reduced-motion .pavilion-h1-live::after,
.pavilion-h1-slot.is-settled .pavilion-h1-live::after {
  content: none;
  animation: none;
}

.pavilion-scroll-hint {
  margin-top: var(--fib-13);
  font: 650 0.68rem / 1.3 var(--pav-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pav-muted);
}

.pavilion-scroll-hint a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(95, 122, 118, 0.55);
  padding-bottom: 0.15rem;
}

/* —— TRANSITION —— */
.pavilion-transition {
  position: relative;
  width: 100%;
  max-width: none;
  margin: 0;
  min-height: min(72vh, 34rem);
  padding: var(--fib-89) 0 var(--fib-55);
  background: var(--pav-charcoal);
  overflow: clip;
}

.transition-backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.transition-backdrop picture,
.transition-backdrop-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.transition-backdrop-img {
  object-fit: cover;
  object-position: center 40%;
  opacity: 0.55;
}

.pavilion-transition::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(180deg, rgba(11, 12, 13, 0.55) 0%, rgba(11, 12, 13, 0.72) 45%, rgba(11, 12, 13, 0.92) 100%),
    linear-gradient(90deg, rgba(11, 12, 13, 0.35), transparent 40%, rgba(11, 12, 13, 0.35));
  opacity: 1;
  transition: opacity 0.7s ease;
}

.pavilion-transition.is-revealed::before {
  opacity: 0.92;
}

.pavilion-transition::after {
  content: "";
  position: absolute;
  inset: 8% 10% 18% 10%;
  z-index: 0;
  border: 1px solid rgba(216, 221, 216, 0.1);
  background: linear-gradient(180deg, rgba(216, 221, 216, 0.03), transparent 55%);
  opacity: 0.45;
  transition: opacity 0.7s ease, transform 0.7s ease;
  pointer-events: none;
}

.pavilion-transition.is-revealed::after {
  opacity: 0.85;
  transform: scale(0.985);
}

.transition-schematic {
  position: relative;
  z-index: 1;
  width: min(920px, calc(100% - 2.5rem));
  margin: 0 auto;
  opacity: 0.22;
  transform: translateY(13px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.pavilion-transition.is-revealed .transition-schematic {
  opacity: 0.72;
  transform: none;
}

.transition-schematic svg {
  width: 100%;
  height: auto;
  display: block;
}

.transition-schematic .etch {
  fill: none;
  stroke: rgba(216, 221, 216, 0.35);
  stroke-width: 1;
}

.transition-schematic .etch-strong {
  stroke: rgba(95, 122, 118, 0.65);
  stroke-width: 1.25;
}

.transition-schematic text {
  fill: rgba(243, 238, 228, 0.42);
  font-family: var(--pav-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.transition-caption {
  width: min(var(--pav-max), calc(100% - 2.5rem));
  margin: var(--fib-34) auto 0;
  font: 650 0.68rem / 1.4 var(--pav-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pav-muted);
}

body.is-reduced-motion .pavilion-transition::before,
body.is-reduced-motion .pavilion-transition::after,
body.is-reduced-motion .transition-schematic {
  transition: none;
  opacity: 1;
  transform: none;
}

/* —— ROOM 01 / THE DESK —— */
.room-desk {
  width: min(var(--pav-max), calc(100% - 2.5rem));
  margin: 0 auto;
  padding: var(--fib-55) 0 var(--fib-89);
  display: grid;
  gap: var(--fib-34);
}

.room-head {
  display: grid;
  gap: var(--fib-13);
  max-width: 38.2%;
  min-width: min(28rem, 100%);
}

.room-index {
  margin: 0;
  font: 700 0.72rem / 1.3 var(--pav-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pav-teal);
}

.room-desk h2 {
  margin: 0;
  font-family: var(--pav-serif);
  font-weight: 600;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--pav-bone);
}

.room-thought {
  margin: 0;
  font: 650 0.78rem / 1.45 var(--pav-mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--pav-mineral);
  max-width: 28rem;
}

.desk-stage {
  position: relative;
  display: grid;
  gap: var(--fib-21);
  padding: var(--fib-21);
  background:
    linear-gradient(180deg, rgba(26, 28, 30, 0.88), rgba(14, 16, 18, 0.96)),
    var(--pav-stone);
  border: 1px solid var(--pav-line);
  box-shadow:
    inset 0 1px 0 rgba(243, 238, 228, 0.05),
    0 0 0 1px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  isolation: isolate;
}

.desk-atmosphere {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.desk-atmosphere picture,
.desk-atmosphere-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.desk-atmosphere-img {
  object-fit: cover;
  object-position: 35% 45%;
  opacity: 0.28;
  filter: saturate(0.85) contrast(1.05);
}

.desk-atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(14, 16, 18, 0.55) 0%, rgba(14, 16, 18, 0.82) 55%, rgba(14, 16, 18, 0.94) 100%),
    linear-gradient(90deg, rgba(14, 16, 18, 0.55), transparent 42%, rgba(14, 16, 18, 0.45));
}

.desk-stage > *:not(.desk-atmosphere) {
  position: relative;
  z-index: 1;
}

.desk-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--fib-8);
  align-items: center;
}

.desk-controls .scenario-btn {
  appearance: none;
  border: 1px solid rgba(243, 238, 228, 0.22);
  background: transparent;
  color: var(--pav-ink);
  padding: 0.65rem 0.95rem;
  font: 650 0.74rem / 1 var(--pav-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.desk-controls .scenario-btn.is-active {
  background: var(--pav-mineral);
  border-color: var(--pav-mineral);
  color: var(--pav-steel);
}

.desk-explain {
  margin: 0;
  color: var(--pav-muted);
  font-size: 0.98rem;
  max-width: 42rem;
}

.desk-layout {
  display: grid;
  grid-template-columns: 1fr minmax(13rem, 21rem);
  gap: var(--fib-21);
  align-items: start;
}

.desk-flow {
  width: 100%;
  min-height: 18rem;
  border: 1px solid rgba(216, 221, 216, 0.1);
  background:
    linear-gradient(180deg, rgba(216, 221, 216, 0.03), transparent 40%),
    rgba(8, 9, 10, 0.55);
  position: relative;
  overflow: hidden;
}

.desk-flow svg {
  width: 100%;
  height: auto;
  display: block;
}

.desk-flow .edge {
  fill: none;
  stroke: rgba(243, 238, 228, 0.16);
  stroke-width: 1.4;
}

.desk-flow .edge.is-active {
  stroke: var(--pav-teal);
  stroke-width: 1.8;
}

.desk-flow .edge.is-active.is-exception {
  stroke: var(--pav-copper);
}

.desk-flow .node-box {
  fill: rgba(14, 16, 18, 0.88);
  stroke: rgba(243, 238, 228, 0.2);
  stroke-width: 1;
  cursor: pointer;
  transition: stroke 0.2s ease, fill 0.2s ease;
}

.desk-flow .node-box.is-on {
  stroke: var(--pav-teal);
  fill: rgba(95, 122, 118, 0.18);
}

.desk-flow .node-box.is-exception {
  stroke: var(--pav-copper);
  fill: rgba(168, 107, 74, 0.16);
}

.desk-flow .node-box.is-selected {
  stroke: var(--pav-mineral);
}

.desk-flow .node-label {
  fill: rgba(243, 238, 228, 0.78);
  font-family: var(--pav-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  pointer-events: none;
}

.desk-flow .signal-dot {
  fill: var(--pav-mineral);
  filter: drop-shadow(0 0 4px rgba(216, 221, 216, 0.35));
}

body.is-reduced-motion .desk-flow .signal-dot {
  filter: none;
}

.desk-annotation {
  display: grid;
  gap: var(--fib-13);
  align-content: start;
  min-height: 8rem;
  padding: var(--fib-21);
  border: 1px solid var(--pav-line);
  background: rgba(11, 12, 13, 0.55);
}

.desk-annotation[hidden] {
  display: none;
}

.desk-annotation .anno-kicker {
  margin: 0;
  font: 700 0.68rem / 1.3 var(--pav-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pav-teal);
}

.desk-annotation p {
  margin: 0;
  color: var(--pav-bone);
  font-size: 1rem;
  line-height: 1.45;
  max-width: 28ch;
}

.desk-placard {
  margin: 0;
  padding: var(--fib-21);
  border: 1px solid rgba(243, 238, 228, 0.12);
  background: #070809;
  color: rgba(243, 238, 228, 0.78);
  font: 600 0.82rem / 1.55 var(--pav-mono);
  white-space: pre-wrap;
}

.desk-path-text {
  margin: 0;
  font: 600 0.78rem / 1.5 var(--pav-mono);
  letter-spacing: 0.04em;
  color: var(--pav-muted);
}

.desk-ownership {
  margin: 0;
  padding: var(--fib-21);
  border: 1px solid rgba(243, 238, 228, 0.12);
  background: rgba(8, 9, 10, 0.55);
}
.desk-ownership .index {
  margin: 0 0 var(--fib-13);
  color: var(--pav-teal);
}
.desk-ownership ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}
.desk-ownership li {
  color: var(--pav-muted);
  font-size: 0.98rem;
}
.desk-ownership strong {
  color: var(--pav-bone);
  font-family: var(--pav-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-right: 0.45rem;
}
.ownership-judgement {
  margin: 1.15rem 0 0;
  max-width: 38rem;
  color: var(--pav-muted);
  font-size: 0.98rem;
  line-height: 1.55;
}

.desk-noscript {
  margin-top: var(--fib-13);
  padding: var(--fib-21);
  border: 1px solid var(--pav-line);
  color: var(--pav-muted);
}

.pavilion-close {
  width: min(var(--pav-max), calc(100% - 2.5rem));
  margin: 0 auto var(--fib-55);
  padding: var(--fib-55) 0 var(--fib-34);
  border-top: 1px solid var(--pav-line);
  display: grid;
  gap: var(--fib-21);
  grid-template-columns: 1.4fr 0.8fr;
  align-items: end;
}

.pavilion-close h2 {
  margin: 0 0 var(--fib-13);
  font-family: var(--pav-serif);
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  letter-spacing: -0.03em;
  max-width: 16ch;
}

.pavilion-close p {
  margin: 0;
  color: var(--pav-muted);
  max-width: 36rem;
}

.pavilion-close .privacy-note {
  font-size: 0.88rem;
  margin-top: var(--fib-13);
}

.pavilion-close .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: flex-end;
}

.shell-pavilion .button.light {
  background: var(--pav-bone);
  color: var(--pav-steel);
}

.shell-pavilion .button.outline {
  border-color: rgba(243, 238, 228, 0.3);
  color: var(--pav-ink);
}

.shell-pavilion footer {
  width: min(var(--pav-max), calc(100% - 2.5rem));
  border-top-color: var(--pav-line);
  color: var(--pav-muted);
}

.shell-pavilion .practice-note {
  margin: 0;
  padding: 0;
  border: 0;
  font: 600 0.74rem / 1.45 var(--pav-mono);
  letter-spacing: 0.03em;
  color: rgba(243, 238, 228, 0.72);
  max-width: 40rem;
}

@media (max-width: 980px) {
  .room-head {
    max-width: 100%;
  }
  .desk-layout,
  .pavilion-close {
    grid-template-columns: 1fr;
  }
  .pavilion-close .contact-actions {
    justify-content: flex-start;
  }
  .pavilion-structure .glass-plane {
    left: 18%;
    right: 6%;
  }
  .pavilion-backdrop-img {
    object-position: 55% 40%;
  }
}

@media (max-width: 680px) {
  .pavilion-hero {
    padding-bottom: var(--fib-55);
  }
  .pavilion-h1-slot {
    min-height: clamp(8rem, 48vw, 12rem);
  }
  .desk-stage {
    padding: var(--fib-13);
  }
  .pavilion-transition {
    min-height: 22rem;
    padding: var(--fib-55) 0 var(--fib-34);
  }
}