:root {
  --bg: #1c211e;
  --surface: #202722;
  --surface-raised: #252e28;
  --fg: #f5f2ea;
  --muted: #a8b0ab;
  --border: #77807b;
  --accent: #8ca979;
  --accent-bright: #b5d59a;
  --display: Optima, Candara, "Trebuchet MS", sans-serif;
  --body: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --gutter: clamp(24px, 5vw, 80px);
  --max: 1480px;
  --radius: 4px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 2rem; }

body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  background: var(--bg);
  color: var(--fg);
  font: 400 16px/1.65 var(--body);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  opacity: .24;
  background-image: linear-gradient(rgba(168, 176, 171, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(168, 176, 171, .045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 5px; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .6; }

:focus-visible {
  outline: 2px solid var(--accent-bright);
  outline-offset: 5px;
}

::selection { background: var(--accent); color: var(--bg); }

.container { width: min(100%, var(--max)); margin-inline: auto; padding-inline: var(--gutter); }
.page-shell { position: relative; z-index: 1; min-height: 100svh; }
.skip-link { position: fixed; inset-block-start: -6rem; inset-inline-start: var(--gutter); z-index: 30; padding: .75rem 1rem; background: var(--accent); color: var(--bg); font-weight: 700; }
.skip-link:focus { inset-block-start: 1rem; }

.site-header { display: flex; align-items: center; justify-content: space-between; gap: 2rem; min-height: 116px; border-bottom: 1px solid var(--border); }
.wordmark { display: inline-flex; align-items: center; min-height: 44px; font: 400 clamp(2rem, 3.4vw, 2.8rem)/1 Baskerville, "Times New Roman", serif; letter-spacing: .015em; }
.site-nav { display: flex; align-items: center; justify-content: flex-end; gap: 1.5rem; }
.site-nav a { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); font: 500 .95rem/1.2 var(--display); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--fg); text-decoration: underline; text-underline-offset: 8px; }
.nav-toggle { display: none; min-height: 44px; padding: .5rem .75rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); color: var(--fg); }

.kicker, .meta, .eyebrow { color: var(--muted); font: 500 .72rem/1.5 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.kicker { margin: 0 0 1.25rem; }
.meta { margin: 0; }

.hero { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(320px, 1.18fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; min-height: 820px; padding-block: clamp(4rem, 8vw, 7rem); }
.hero-copy { min-width: 0; }
h1, h2, h3 { margin: 0; font-family: var(--display); font-weight: 400; text-wrap: balance; }
h1 { max-width: 13ch; font-size: clamp(3.4rem, 7vw, 7.2rem); line-height: .98; letter-spacing: -.055em; }
h1 em, .accent { color: var(--accent); font-style: normal; }
h2 { max-width: 22ch; font-size: clamp(2.1rem, 4vw, 4rem); line-height: 1.04; letter-spacing: -.04em; }
h3 { font-size: clamp(1.35rem, 2vw, 1.8rem); line-height: 1.15; letter-spacing: -.02em; }
.lede { max-width: 60ch; margin: 1.7rem 0 0; color: var(--muted); font-size: clamp(1.05rem, 1.5vw, 1.25rem); line-height: 1.6; text-wrap: pretty; }
.hero-note { max-width: 52ch; margin: 1.5rem 0 0; color: var(--muted); font: .75rem/1.7 var(--mono); }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: .85rem 1.25rem; margin-top: 2rem; }
.button, .text-link { display: inline-flex; align-items: center; justify-content: center; gap: .8rem; min-height: 48px; padding: .75rem 1.05rem; border: 1px solid var(--border); border-radius: var(--radius); font: 500 1rem/1.2 var(--display); text-decoration: none; }
.button:hover, .text-link:hover { border-color: var(--fg); text-decoration: none; }
.button--primary { background: var(--accent); border-color: var(--accent); color: var(--bg); font-weight: 600; }
.button--primary:hover { background: var(--fg); border-color: var(--fg); }
.button--quiet { color: var(--muted); }
.button--quiet:hover { color: var(--fg); }

@media (min-width: 960px) {
  .hero {
    grid-template-columns: 0.82fr 1.28fr;
    gap: 2rem;
  }
}

.floating-scene-viewport {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  width: 100%;
}

/* BACKGROUND HARNESS WINDOW (SOFT FOCUS / AMBIENT) */
.bg-harness-window {
  width: 100%;
  max-width: 650px;
  border-radius: 12px;
  background: #0f1210;
  border: 1px solid rgba(168, 176, 171, 0.2);
  box-shadow: 0 24px 60px -15px rgba(0, 0, 0, 0.9);
  filter: blur(0.3px);
  opacity: 0.78;
  user-select: none;
  pointer-events: none;
  transition: filter 300ms ease, opacity 300ms ease;
  display: flex;
  flex-direction: column;
}

.floating-scene-viewport:hover .bg-harness-window {
  filter: blur(0);
  opacity: 0.92;
}

.harness-aux-indicator {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font: 600 .58rem/1 var(--mono);
  color: var(--accent-bright);
  background: rgba(140, 169, 121, 0.12);
  border: 1px solid rgba(140, 169, 121, 0.3);
  padding: .2rem .5rem;
  border-radius: 3px;
}

.bg-window-body {
  padding: 1.15rem;
  display: flex;
  flex-direction: column;
  gap: .85rem;
  max-width: 235px;
}

.bg-chat-thread {
  display: flex;
  flex-direction: column;
  gap: .85rem;
}

.bg-bubble-user {
  align-self: flex-start;
  background: #181f1a;
  border: 1px solid rgba(168, 176, 171, 0.16);
  padding: .5rem .75rem;
  border-radius: 8px;
  font: 400 .66rem/1.35 var(--sans);
  color: #cdd5cf;
  max-width: 100%;
}
.bg-bubble-user strong { color: #fff; }

.bg-bubble-agent {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(168, 176, 171, 0.14);
  border-left: 2px solid var(--accent);
  border-radius: 6px;
  padding: .55rem .65rem;
  font: 400 .62rem/1.4 var(--sans);
  color: #cfd8d2;
  display: flex;
  flex-direction: column;
  gap: .35rem;
}
.agent-complete-badge {
  display: flex;
  align-items: center;
  gap: .35rem;
  font: 600 .6rem/1 var(--mono);
  color: var(--accent-bright);
}
.agent-action-text {
  font-size: .6rem;
  color: #9aa59e;
}
.agent-action-text strong {
  color: #e4ebe6;
}
.agent-pane-link {
  display: flex;
  align-items: center;
  gap: .35rem;
  font: 600 .58rem/1 var(--mono);
  background: rgba(140, 169, 121, 0.1);
  border: 1px solid rgba(140, 169, 121, 0.25);
  padding: .25rem .45rem;
  border-radius: 4px;
  color: var(--accent-bright);
}
.agent-pane-link .link-file {
  color: #fff;
}
.agent-pane-link .link-count {
  margin-left: auto;
  color: var(--accent);
  font-size: .54rem;
}

.bg-prompt-input {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 32px;
  padding-inline: .65rem;
  background: #141815;
  border: 1px solid rgba(168, 176, 171, 0.14);
  border-radius: 6px;
  font: 400 .62rem/1 var(--sans);
  color: #555e58;
}

/* FOREGROUND: SHARP, IN-FOCUS FLOATING AUXILIARY WINDOW */
.floating-hud-tray {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: min(100%, 465px);
  background: linear-gradient(175deg, #1b221d 0%, #121613 100%);
  border: 1px solid rgba(181, 213, 154, 0.45);
  border-radius: 12px;
  box-shadow: 0 32px 80px -10px rgba(0, 0, 0, 0.95), 0 0 36px rgba(140, 169, 121, 0.14), 0 0 0 1px rgba(255, 255, 255, 0.04);
  overflow: hidden;
  z-index: 10;
  filter: none !important;
  opacity: 1 !important;
}

.hud-tray-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .65rem 1.15rem;
  background: #0f1310;
  border-bottom: 1px solid rgba(181, 213, 154, 0.2);
  user-select: none;
}
.hud-window-controls {
  display: flex;
  align-items: center;
  gap: 5px;
}
.win-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  opacity: 0.75;
}
.win-dot.close { background: #e06c75; }
.win-dot.min { background: #e5c07b; }
.win-dot.max { background: #98c379; }

.hud-title-badge {
  display: flex;
  align-items: center;
  gap: .55rem;
}
.hud-tag {
  background: rgba(140, 169, 121, 0.16);
  color: var(--accent-bright);
  border: 1px solid rgba(140, 169, 121, 0.35);
  font: 700 .54rem/1 var(--mono);
  padding: .2rem .45rem;
  border-radius: 3px;
  letter-spacing: .06em;
}
.hud-title-text {
  font: 600 .68rem/1 var(--mono);
  color: var(--fg);
  letter-spacing: .03em;
}
.hud-actions {
  font: 600 .58rem/1 var(--mono);
  color: var(--accent-bright);
}

.hud-tray-body {
  padding: .35rem 1.15rem .65rem;
}
.floating-hud-tray .rolodex-stage {
  height: 265px;
  padding: 0;
}

/* TIGHTENED 3D ROLLING TRANSFORMS FOR AUX TRAY */
.floating-hud-tray .rolodex-card[data-pos="0"] {
  transform: translateY(0px) translateZ(0px) scale(1);
  opacity: 1;
  z-index: 7;
}
.floating-hud-tray .rolodex-card[data-pos="1"] {
  transform: translateY(-28px) translateZ(-35px) scale(0.96);
  opacity: 0.94;
  z-index: 6;
}
.floating-hud-tray .rolodex-card[data-pos="2"] {
  transform: translateY(-56px) translateZ(-70px) scale(0.92);
  opacity: 0.82;
  z-index: 5;
}
.floating-hud-tray .rolodex-card[data-pos="3"] {
  transform: translateY(-82px) translateZ(-105px) scale(0.88);
  opacity: 0.65;
  z-index: 4;
}
.floating-hud-tray .rolodex-card[data-pos="4"] {
  transform: translateY(-106px) translateZ(-140px) scale(0.84);
  opacity: 0.45;
  z-index: 3;
}
.floating-hud-tray .rolodex-card[data-pos="5"],
.floating-hud-tray .rolodex-card[data-pos="6"],
.floating-hud-tray .rolodex-card[data-pos="7"],
.floating-hud-tray .rolodex-card[data-pos="8"],
.floating-hud-tray .rolodex-card[data-pos="9"] {
  transform: translateY(-126px) translateZ(-175px) scale(0.80);
  opacity: 0;
  z-index: 1;
  pointer-events: none;
}

.card-hero-metric.alert {
  color: #f6d38e;
}
.card-check-pill.alert {
  background: rgba(229, 192, 123, 0.12);
  border-color: rgba(229, 192, 123, 0.35);
  color: #e5c07b;
}
.card-stamp.alert {
  color: #e5c07b;
  border-color: rgba(229, 192, 123, 0.4);
}

.hud-tray-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 32px;
  padding-inline: 1.15rem;
  background: #0f1310;
  border-top: 1px solid rgba(168, 176, 171, 0.12);
  font: 400 .62rem/1 var(--mono);
  color: var(--dim);
}

/* MODERN AGENT HARNESS FRAME */
.agent-harness-frame {
  position: relative;
  border-radius: 12px;
  background: #111412;
  border: 1px solid rgba(168, 176, 171, 0.2);
  box-shadow: 0 32px 80px -16px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(255, 255, 255, 0.03);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* TOP HARNESS NAV BAR */
.harness-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 40px;
  padding-inline: 1rem;
  background: #0d100e;
  border-bottom: 1px solid rgba(168, 176, 171, 0.12);
  user-select: none;
}
.harness-nav-left {
  display: flex;
  align-items: center;
  gap: .65rem;
}
.harness-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--dim);
  opacity: .75;
}
.harness-crumbs {
  font: 400 .68rem/1 var(--sans);
  color: var(--muted);
  letter-spacing: .02em;
}
.harness-crumbs .crumb-sep {
  color: var(--dim);
  margin-inline: .25rem;
}
.harness-crumbs strong {
  color: #e5ece6;
  font-weight: 500;
}
.harness-nav-right {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.harness-engine-badge {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .2rem .55rem;
  background: rgba(140, 169, 121, 0.1);
  border: 1px solid rgba(140, 169, 121, 0.28);
  border-radius: 999px;
  font: 500 .6rem/1 var(--mono);
  color: var(--accent-bright);
}
.harness-engine-badge .live-dot {
  font-size: .5rem;
}
.harness-ide-link {
  font: 400 .62rem/1 var(--mono);
  color: var(--dim);
}

/* HARNESS WORKSPACE BODY */
.harness-body {
  position: relative;
  background: radial-gradient(circle at 50% 0%, rgba(140, 169, 121, 0.05) 0%, transparent 65%), #111412;
  padding: .9rem 1.15rem .95rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  overflow: hidden;
}

/* BLURRED SURROUNDING HARNESS CONTEXT */
.harness-ambient-context {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  filter: blur(1.2px);
  opacity: 0.62;
  user-select: none;
  pointer-events: none;
}
.harness-user-msg {
  align-self: flex-end;
  background: #19201b;
  border: 1px solid rgba(168, 176, 171, 0.16);
  padding: .42rem .8rem;
  border-radius: 10px 10px 2px 10px;
  font: 400 .68rem/1.35 var(--sans);
  color: #cbd4ce;
  max-width: 90%;
}
.harness-tool-chip {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .25rem .6rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(168, 176, 171, 0.12);
  border-radius: 4px;
  font: 400 .6rem/1 var(--mono);
  color: #8b958f;
  width: fit-content;
}
.harness-tool-chip .tool-check {
  color: var(--accent);
  font-weight: 700;
}
.harness-tool-chip strong {
  color: #c0ccc3;
  font-weight: 500;
}

/* 3D ROLODEX DECK STAGE - DIRECT IN HARNESS WORKSPACE */
.rolodex-stage {
  position: relative;
  height: 340px;
  perspective: 1200px;
  perspective-origin: 50% 120%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: .5rem 0;
}

/* BLURRED HARNESS PROMPT INPUT BAR */
.harness-input-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  height: 38px;
  padding-inline: .85rem;
  background: #151916;
  border: 1px solid rgba(168, 176, 171, 0.15);
  border-radius: 7px;
  filter: blur(1.2px);
  opacity: 0.62;
  user-select: none;
  pointer-events: none;
}
.input-plus {
  font: 600 .85rem/1 var(--mono);
  color: var(--muted);
}
.input-placeholder {
  font: 400 .66rem/1 var(--sans);
  color: #5d6761;
  flex: 1 1 auto;
}
.input-actions {
  display: flex;
  align-items: center;
  gap: .45rem;
}
.model-picker-pill {
  padding: .18rem .45rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(168, 176, 171, 0.12);
  border-radius: 3px;
  font: 400 .56rem/1 var(--mono);
  color: var(--muted);
}
.input-send-btn {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: 700 .62rem/1 var(--mono);
}

/* ROLODEX CARDS */
.rolodex-card {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 195px;
  background: linear-gradient(175deg, #1b221d 0%, #131714 100%);
  border: 1px solid rgba(168, 176, 171, 0.22);
  border-top: 2px solid rgba(181, 213, 154, 0.65);
  border-radius: var(--radius);
  box-shadow: 0 -4px 18px -4px rgba(0, 0, 0, 0.55), 0 18px 38px -8px rgba(0, 0, 0, 0.85), inset 0 1px 0 rgba(255,255,255,0.04);
  padding: .65rem 1.25rem .85rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform-style: preserve-3d;
  transition: transform 420ms cubic-bezier(0.18, 0.89, 0.32, 1.15), opacity 420ms ease, border-color 200ms ease;
  cursor: pointer;
  user-select: none;
}
.rolodex-card:hover {
  border-color: rgba(181, 213, 154, 0.7);
}

/* CONTINUOUS 3D STACK POSITIONS */
.rolodex-card[data-pos="0"] {
  transform: translateY(0px) translateZ(0px) scale(1);
  opacity: 1;
  z-index: 7;
}
.rolodex-card[data-pos="1"] {
  transform: translateY(-38px) translateZ(-42px) scale(0.96);
  opacity: 0.94;
  z-index: 6;
}
.rolodex-card[data-pos="2"] {
  transform: translateY(-74px) translateZ(-84px) scale(0.92);
  opacity: 0.82;
  z-index: 5;
}
.rolodex-card[data-pos="3"] {
  transform: translateY(-108px) translateZ(-126px) scale(0.88);
  opacity: 0.64;
  z-index: 4;
}
.rolodex-card[data-pos="4"] {
  transform: translateY(-138px) translateZ(-168px) scale(0.84);
  opacity: 0.42;
  z-index: 3;
}
.rolodex-card[data-pos="5"],
.rolodex-card[data-pos="6"],
.rolodex-card[data-pos="7"],
.rolodex-card[data-pos="8"],
.rolodex-card[data-pos="9"] {
  transform: translateY(-162px) translateZ(-210px) scale(0.80);
  opacity: 0;
  z-index: 1;
  pointer-events: none;
}

/* ROLLING CARD DISMISS ANIMATION */
.rolodex-card.is-rolling {
  transform: translateY(85px) translateZ(80px) rotateX(-24deg) !important;
  opacity: 0 !important;
  z-index: 10 !important;
  pointer-events: none;
}

/* CARD INTERNALS */
.card-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  margin: -.65rem -1.25rem 0;
  padding: .5rem 1.25rem;
  background: #171d19;
  border-bottom: 1px solid rgba(168, 176, 171, 0.15);
  border-top-left-radius: 5px;
  border-top-right-radius: 5px;
}
.card-id-tag {
  font: 600 .66rem/1 var(--mono);
  letter-spacing: .08em;
  color: var(--accent);
}
.card-vendor-tag {
  font: 500 .82rem/1 var(--display);
  letter-spacing: .02em;
  color: var(--fg);
}

.card-main-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-block: auto;
}
.card-hero-metric {
  font: 600 clamp(1.35rem, 2.1vw, 1.75rem)/1 var(--mono);
  letter-spacing: -.02em;
  color: #ffffff;
}
.card-hero-metric small {
  font-size: .82rem;
  color: var(--muted);
  font-weight: 400;
  margin-left: .35rem;
}
.card-check-pill {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .28rem .5rem;
  background: rgba(140,169,121,0.12);
  border: 1px solid rgba(140,169,121,0.3);
  border-radius: 3px;
  font: 500 .62rem/1 var(--mono);
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--accent-bright);
  white-space: nowrap;
}

.card-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
  padding-top: .55rem;
  border-top: 1px solid rgba(168, 176, 171, 0.12);
}
.card-subtext {
  font: 400 .64rem/1.3 var(--mono);
  color: var(--dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card-subtext strong {
  color: var(--muted);
  font-weight: 500;
}
.card-stamp {
  font: 700 .62rem/1 var(--mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .28rem .55rem;
  border-radius: 3px;
  background: rgba(140, 169, 121, 0.18);
  border: 1px solid var(--accent);
  color: var(--accent-bright);
  white-space: nowrap;
}

/* HARNESS BOTTOM STATUS STRIP */
.harness-status-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 34px;
  padding-inline: 1.15rem;
  background: #111512;
  border-top: 1px solid rgba(168, 176, 171, 0.15);
  font: 400 .64rem/1 var(--mono);
  color: var(--dim);
  letter-spacing: .05em;
}
.harness-status-strip .accent-txt {
  color: var(--accent);
}

.section { padding-block: clamp(4rem, 8vw, 7rem); }
.section + .section { border-top: 1px solid var(--border); }
.section--bone { background: var(--surface); }
.section-intro { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(2rem, 8vw, 8rem); align-items: end; }
.section-intro > p { max-width: 52ch; margin: 0; color: var(--muted); font-size: 1.08rem; }
.rule { border-top: 1px solid var(--border); }

.research-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: 3rem; border: 1px solid var(--border); background: var(--border); }
.research-card { display: grid; align-content: start; gap: 1rem; min-height: 320px; padding: clamp(1.25rem, 3vw, 2rem); background: var(--bg); transition: background-color 180ms ease, transform 180ms ease; }
.research-card:hover { background: var(--surface); transform: translateY(-3px); }
.card-index { color: var(--accent); font: .75rem/1.4 var(--mono); }
.research-card p:not(.meta) { margin: 0; color: var(--muted); }
.card-link { display: inline-flex; align-items: center; gap: 1.5rem; margin-top: auto; color: var(--accent); }

.split { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(2rem, 8vw, 8rem); }
.split > p { max-width: 52ch; margin: 0; color: var(--muted); font-size: 1.08rem; }
.split .section-intro { display: block; }
.split .section-intro > p { margin-top: 1.5rem; }
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.step { padding-top: 1rem; border-top: 1px solid var(--border); }
.step .meta { margin-bottom: 1.5rem; }
.step p:not(.meta) { margin: .8rem 0 0; color: var(--muted); }

.result-explorer { display: grid; grid-template-columns: minmax(220px, .72fr) minmax(0, 1.28fr); gap: clamp(2rem, 6vw, 5rem); align-items: start; margin-top: 3rem; }
.result-tabs { display: grid; gap: 0; border: 0; }
.result-tab { display: grid; grid-template-columns: 2.5rem 1fr; gap: .8rem; width: 100%; padding: 1rem 0; border: 0; border-top: 1px solid var(--border); background: transparent; color: var(--muted); text-align: left; }
.result-tab:last-child { border-bottom: 1px solid var(--border); }
.result-tab:hover, .result-tab[aria-selected="true"] { color: var(--fg); }
.result-tab[aria-selected="true"] { color: var(--accent); }
.result-tab strong { display: block; font: 400 1.35rem/1.2 var(--display); }
.result-tab small { display: block; margin-top: .35rem; color: inherit; font: .75rem/1.4 var(--mono); }
.result-panel { min-height: 340px; padding: clamp(1.25rem, 3vw, 2.25rem); border: 1px solid var(--border); background: var(--surface); }
.result-panel h3 { max-width: 15ch; margin-top: .7rem; font-size: clamp(2rem, 3.4vw, 3rem); }
.result-lead { max-width: 48ch; margin: 1rem 0 0; color: var(--muted); }
.fact-list { margin: 2rem 0 0; }
.fact-list div { display: grid; grid-template-columns: 8rem 1fr; gap: 1rem; padding: .85rem 0; border-top: 1px solid var(--border); }
.fact-list dt { color: var(--muted); font: .7rem/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.fact-list dd { margin: 0; }

.band { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 7%; align-items: end; overflow: hidden; margin-inline: 0; padding: clamp(3.5rem, 7vw, 6rem) max(var(--gutter), calc((100vw - var(--max)) / 2 + var(--gutter))); background: var(--fg); color: var(--bg); }
.band::after { position: absolute; inset: 0 0 0 56%; pointer-events: none; content: ""; opacity: .18; background: repeating-linear-gradient(135deg, transparent 0 18px, rgba(28, 33, 30, .28) 19px 20px); }
.band .kicker, .band h2, .band p { color: var(--bg); }
.band p { max-width: 50ch; margin: 1rem 0 0; }
.band-link { display: inline-flex; align-items: center; min-height: 44px; margin-top: 1.5rem; border-bottom: 1px solid currentColor; }

.page-intro { display: grid; grid-template-columns: minmax(0, 1fr) minmax(260px, .8fr); gap: clamp(2rem, 8vw, 8rem); align-items: end; padding-block: clamp(4rem, 9vw, 8rem) clamp(3rem, 6vw, 5rem); }
.page-intro h1 { max-width: 12ch; margin-top: 1.2rem; }
.page-intro p:not(.kicker) { max-width: 50ch; margin: 0; color: var(--muted); font-size: 1.1rem; }
.detail-intro { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(2rem, 8vw, 8rem); align-items: end; padding-block: clamp(4rem, 8vw, 7rem) clamp(2.5rem, 5vw, 4.5rem); }
.detail-intro h1 { margin-top: 1.2rem; }
.detail-intro h2 { max-width: 18ch; }
.detail-intro p:not(.kicker) { max-width: 50ch; margin: 1.2rem 0 0; color: var(--muted); font-size: 1.08rem; }
.detail-card { display: grid; gap: 1.15rem; padding: clamp(1.35rem, 3vw, 2.25rem); border: 1px solid rgba(168, 176, 171, 0.22); border-top: 1px solid rgba(140, 169, 121, 0.35); border-radius: 8px; background: #0f1311; box-shadow: 0 16px 40px -10px rgba(0, 0, 0, 0.6); }
.detail-card dl { margin: 0; }
.detail-card dl div { display: grid; grid-template-columns: 8rem 1fr; gap: 1rem; padding: .8rem 0; border-top: 1px solid rgba(168, 176, 171, 0.16); }
.detail-card dt { color: var(--muted); font: .7rem/1.5 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.detail-card dd { margin: 0; }

/* STATIC HUD REVIEW WINDOW FOR SUBPAGES & ARTIFACTS */
.static-hud {
  width: 100%;
  max-width: 640px;
  background: #0b0e0c;
  border: 1px solid rgba(168, 176, 171, 0.28);
  border-top: 1px solid rgba(140, 169, 121, 0.55);
  border-radius: 12px;
  box-shadow: 0 24px 60px -12px rgba(0, 0, 0, 0.95), 0 0 0 1px rgba(255, 255, 255, 0.04);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.static-hud .hud-card-body {
  padding: 1.25rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: #0d110f;
}

.static-hud .hud-fact-grid {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding-block: 0.75rem;
  border-top: 1px solid rgba(168, 176, 171, 0.14);
  border-bottom: 1px solid rgba(168, 176, 171, 0.14);
}

.static-hud .fact-row {
  display: grid;
  grid-template-columns: 8.5rem 1fr;
  gap: 1rem;
  align-items: baseline;
  font-size: 0.92rem;
  line-height: 1.5;
}

.static-hud .fact-label {
  font: 600 0.66rem/1.4 var(--mono);
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.static-hud .fact-value {
  color: var(--fg);
  font-size: 0.88rem;
}

.form-hud {
  max-width: 640px;
}
.form-hud .form-grid {
  padding: 1.4rem;
  background: #0d110f;
}

/* SOLUTIONS & TOOLS HUD GRIDS */
.solutions-hud-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.solutions-hud-grid .static-hud {
  max-width: none;
  height: 100%;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease, box-shadow 0.2s ease;
}

.solutions-hud-grid .static-hud:hover {
  transform: translateY(-4px);
  border-color: rgba(140, 169, 121, 0.65);
  box-shadow: 0 28px 70px -10px rgba(0, 0, 0, 0.98), 0 0 20px rgba(140, 169, 121, 0.15);
}

.solutions-hud-grid .hud-card-body {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
}

.solutions-hud-grid .card-bottom-row {
  margin-top: auto;
  padding-top: 1rem;
}

.hud-tools-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.hud-tools-grid .static-hud {
  max-width: none;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease;
}

.hud-tools-grid .static-hud:hover {
  transform: translateY(-3px);
  border-color: rgba(140, 169, 121, 0.55);
}

@media (max-width: 900px) {
  .solutions-hud-grid, .hud-tools-grid {
    grid-template-columns: 1fr;
  }
}
.status { display: inline-flex; width: fit-content; padding: .35rem .55rem; border: 1px solid var(--border); color: var(--muted); font: .7rem/1.2 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.faq { border-top: 1px solid var(--border); }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary { display: flex; align-items: center; min-height: 56px; cursor: pointer; font: 400 1.1rem/1.35 var(--display); }
.faq details p { max-width: 65ch; margin: 0 0 1.2rem; color: var(--muted); }

.tool-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--border); background: var(--border); }
.tool-card { display: grid; gap: 1rem; padding: clamp(1.25rem, 3vw, 2rem); background: var(--bg); }
.tool-card p:not(.meta) { margin: 0; color: var(--muted); }
.tool-card .text-link { width: fit-content; margin-top: auto; color: var(--accent); }

.form-panel { padding: clamp(1.25rem, 3vw, 2.25rem); border: 1px solid var(--border); background: var(--surface); }
.form-grid { display: grid; gap: 1.25rem; }
.field { display: grid; gap: .45rem; }
.field label, fieldset legend { color: var(--fg); font: 500 1rem/1.35 var(--display); }
.field input, .field select, .field textarea { width: 100%; min-height: 48px; padding: .72rem .8rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); color: var(--fg); font-size: 1rem; }
.field textarea { min-height: 8rem; resize: vertical; }
.field small { color: var(--muted); font-size: .82rem; }
.form-status { min-height: 1.5rem; margin: 0; color: var(--accent); font: .8rem/1.5 var(--mono); }

.site-footer { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem 2rem; padding-block: 2rem; border-top: 1px solid var(--border); color: var(--muted); font-size: .9rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; }
.footer-links a { display: inline-flex; align-items: center; min-height: 44px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.mobile-only { display: none; }

@media (max-width: 900px) {
  .site-header { min-height: 0; padding-block: 1rem; }
  .nav-toggle { display: inline-flex; align-items: center; }
  .site-nav { display: none; width: 100%; flex-direction: column; align-items: stretch; gap: 0; padding-bottom: .75rem; }
  .site-nav[data-open="true"] { display: flex; }
  .site-nav a { padding-inline: .25rem; }
  .hero, .page-intro, .detail-intro, .section-intro, .split, .result-explorer, .band { grid-template-columns: 1fr; }
  .hero { min-height: 0; gap: 3rem; }
  .research-grid, .steps { grid-template-columns: 1fr 1fr; }
  .band { gap: 2rem; }
}

@media (max-width: 900px) {
  .floating-scene-viewport { flex-direction: column; align-items: stretch; min-height: 0; }
  .bg-harness-window { display: none; }
  .floating-hud-tray { position: relative; right: auto; top: auto; transform: none; width: 100%; }
  .hud-window-controls { display: none; }
  .hud-tray-header { padding: .55rem .85rem; }
  .hud-title-badge { gap: .4rem; }
  .hud-title-text { font-size: .62rem; }
  .hud-actions { font-size: .54rem; }
}

@media (max-width: 600px) {
  h1 { font-size: clamp(3rem, 14vw, 4.5rem); }
  h2 { font-size: clamp(2rem, 10vw, 3rem); }
  .research-grid, .steps, .tool-list { grid-template-columns: 1fr; }
  .panel-frame { min-height: 260px; }
  .node-label, .node-label.flip { transform: translate(-50%, 12px); font-size: 8px; }
  .fact-list div, .detail-card dl div { grid-template-columns: 1fr; gap: .35rem; }
  .site-footer { align-items: flex-start; flex-direction: column; }
  .harness-nav-bar { padding-inline: .75rem; height: 34px; }
  .harness-ide-link { display: none; }
  .harness-crumbs { font-size: .62rem; }
  .harness-engine-badge { font-size: .54rem; padding: .15rem .45rem; }
  .harness-body { padding: .65rem .75rem .75rem; gap: .55rem; }
  .harness-ambient-context { display: none; }
  .harness-input-bar { height: 34px; }
  .input-placeholder { font-size: .6rem; }
  .model-picker-pill { font-size: .52rem; padding: .15rem .35rem; }
  .rolodex-stage { height: 260px; }
  .rolodex-card { height: 175px; padding: .6rem .85rem .7rem; }
  .card-top-row { margin: -.6rem -.85rem 0; padding: .4rem .85rem; }
  .card-hero-metric { font-size: 1.2rem; }
  .card-check-pill { font-size: .52rem; padding: .18rem .35rem; }
  .card-vendor-tag { font-size: .72rem; }
  .card-bottom-row { gap: .35rem; }
  .card-stamp { font-size: .5rem; padding: .18rem .35rem; flex-shrink: 0; }
  .card-subtext { font-size: .5rem; flex: 1 1 auto; min-width: 0; }
  .desktop-only { display: none; }
  .mobile-only { display: inline; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (forced-colors: active) {
  .button, .text-link, .result-panel, .detail-card, .form-panel { border: 1px solid CanvasText; }
  .result-tab[aria-selected="true"] { color: Highlight; }
}