/* ============================================================
   MATINSHAPE — Projects page (the System Vault, light theme)
   Scoped to body.vault-page. Loaded after styles.css.
   ============================================================ */
.vault-page {
  --dk-deep:   #FDFDFB;
  --dk-base:   #FAF9F6;
  --dk-elev:   #FFFFFF;
  --dk-glass:  rgba(28, 25, 23, 0.025);
  --dk-glass2: rgba(28, 25, 23, 0.045);
  --dk-line:   rgba(28, 25, 23, 0.08);
  --dk-line2:  rgba(28, 25, 23, 0.15);
  --dk-text:   #1C1917;
  --dk-mute:   #57534E;
  --dk-dim:    #78716C;
  --gold-glow: rgba(198, 161, 91, 0.16);
  --ease-expo: cubic-bezier(0.16, 1, 0.3, 1);

  background:
    radial-gradient(900px 500px at 85% -5%, rgba(198,161,91,.10), transparent 60%),
    radial-gradient(700px 500px at -10% 30%, rgba(198,161,91,.06), transparent 55%),
    linear-gradient(180deg, #FFFFFF, var(--dk-base));
  color: var(--dk-text);
}
.vault-page .grain { opacity: .035; }
.vault-page ::selection { background: var(--gold-pale); color: var(--ink); }
.vault-page.no-scroll { overflow: hidden; }

/* ============================================================
   Nav / mobile menu — vault variants
   ============================================================ */
.vault-page .nav-logo { color: var(--dk-text); }
.vault-page .nav-links a { color: var(--dk-mute); }
.vault-page .nav-links a:hover,
.vault-page .nav-links a.active { color: var(--dk-text); }
.vault-page .nav.scrolled .nav-inner {
  background: var(--glass-strong);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-color: var(--border);
  box-shadow: var(--shadow-md);
}
.vault-page .nav-portal {
  border-color: var(--dk-line2);
  color: var(--dk-mute);
  background: var(--dk-glass);
}
.vault-page .nav-portal:hover { color: var(--gold); border-color: var(--gold); }
.vault-page .nav-burger span { background: var(--dk-text); }
.vault-page .mobile-menu { background: var(--dk-deep); }
.vault-page .mobile-menu a { color: var(--dk-text); }
.vault-page .mobile-menu a:hover { color: var(--gold); }

/* ============================================================
   Ambient cinema layer
   ============================================================ */
.dk-ambient { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.dk-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  will-change: transform;
}
.dk-blob-1 {
  width: 620px; height: 620px;
  top: -18%; right: -12%;
  background: radial-gradient(circle, rgba(198,161,91,.16), transparent 65%);
  animation: dk-drift-1 26s ease-in-out infinite alternate;
}
.dk-blob-2 {
  width: 480px; height: 480px;
  bottom: -20%; left: -12%;
  background: radial-gradient(circle, rgba(228,205,151,.20), transparent 65%);
  animation: dk-drift-2 32s ease-in-out infinite alternate;
}
@keyframes dk-drift-1 { to { transform: translate(-80px, 70px) scale(1.15); } }
@keyframes dk-drift-2 { to { transform: translate(70px, -60px) scale(1.1); } }

.dk-gridlines {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(28,25,23,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28,25,23,.035) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: radial-gradient(ellipse 85% 60% at 50% 0%, black 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 85% 60% at 50% 0%, black 20%, transparent 75%);
}

main { position: relative; z-index: 1; }

/* ============================================================
   Cinematic page hero
   ============================================================ */
.dk-hero {
  position: relative;
  padding: calc(var(--nav-h) + clamp(80px, 11vw, 150px)) 24px clamp(60px, 8vw, 100px);
  text-align: center;
  overflow: hidden;
}
.dk-hero .eyebrow { color: var(--gold); }
.dk-hero .eyebrow::before { background: var(--gold-bright); }
.dk-hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.7rem, 7.2vw, 5.8rem);
  line-height: 1.06;
  letter-spacing: -.015em;
  max-width: 17ch;
  margin: 26px auto 0;
}
.dk-hero .section-sub {
  color: var(--dk-mute);
  margin-left: auto; margin-right: auto;
  text-align: center;
}
.dk-beam {
  position: absolute; left: 0; right: 0; top: calc(var(--nav-h) + 30px);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(161,98,7,.55), transparent);
  background-size: 50% 100%;
  background-repeat: no-repeat;
  animation: beam-sweep 7s var(--ease-expo) infinite;
  opacity: .6;
}
@keyframes beam-sweep {
  0% { background-position: -60% 0; }
  55%, 100% { background-position: 170% 0; }
}

.dk-hero-stats {
  display: flex; justify-content: center; gap: clamp(28px, 6vw, 72px);
  flex-wrap: wrap;
  margin-top: clamp(40px, 6vw, 64px);
}
.dk-stat { text-align: center; }
.dk-stat b {
  display: block;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.9rem, 3.4vw, 2.9rem);
  color: var(--dk-text);
  font-variant-numeric: tabular-nums;
}
.dk-stat b em { color: var(--gold); font-style: italic; }
.dk-stat > span {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--dk-dim);
}

/* ============================================================
   Command center — floating automation-node schematic
   ============================================================ */
.cc-wrap {
  position: relative;
  max-width: 1080px;
  margin: clamp(44px, 6vw, 70px) auto 0;
  border-radius: 26px;
  border: 1px solid var(--dk-line);
  background: linear-gradient(170deg, #FFFFFF, var(--dk-base) 75%);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  isolation: isolate;
}
.cc-wrap::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(198,161,91,.5), transparent 40%, transparent 60%, rgba(198,161,91,.28));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.cc-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--dk-line);
  background: rgba(250, 249, 246, .8);
}
.cc-title {
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--dk-dim);
  text-align: left;
}
.cc-live {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 9.5px; letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--gold);
  white-space: nowrap;
}
.cc-live i {
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
  animation: led 2.2s ease-in-out infinite;
}
.cc {
  display: block;
  width: 100%; height: auto;
  padding: clamp(14px, 2.5vw, 28px);
  background: radial-gradient(560px 240px at 50% 50%, rgba(198,161,91,.08), transparent 75%);
}
.cc-core rect {
  fill: #1C1917;
  stroke: rgba(198,161,91,.7);
  stroke-width: 1.2;
  filter: drop-shadow(0 0 16px rgba(198,161,91,.25));
}
.cc-core text { fill: #E4CD97; }
.cc-core-mark { fill: #C6A15B; }
.cc-float-a { animation: mfloat 6s ease-in-out infinite alternate; }
.cc-float-b { animation: mfloat 7.5s ease-in-out .8s infinite alternate; }
.cc-float-c { animation: mfloat 8.5s ease-in-out 1.6s infinite alternate; }

/* ============================================================
   Section scaffolding
   ============================================================ */
.dk-section { position: relative; padding: clamp(70px, 9vw, 120px) 24px; }
.dk-label {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 20px;
}
.dk-label::after { content: ''; flex: 1; height: 1px; background: linear-gradient(90deg, rgba(198,161,91,.4), transparent); }
.dk-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.9rem, 4.2vw, 3.2rem);
  line-height: 1.12;
  letter-spacing: -.01em;
  max-width: 26ch;
}
.dk-sub { color: var(--dk-mute); max-width: 58ch; margin-top: 16px; line-height: 1.75; font-size: 15.5px; }

/* ============================================================
   Featured system — cinematic split
   ============================================================ */
.featured-sys {
  position: relative;
  margin-top: 44px;
  border-radius: 28px;
  border: 1px solid var(--dk-line);
  background: linear-gradient(160deg, #FFFFFF, var(--dk-base) 70%);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  isolation: isolate;
}
.featured-sys::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(198,161,91,.55), transparent 38%, transparent 62%, rgba(198,161,91,.3));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.fs-copy { padding: clamp(34px, 4.5vw, 64px); position: relative; z-index: 2; }
.fs-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--gold);
  padding: 9px 18px;
  border-radius: 100px;
  border: 1px solid rgba(198,161,91,.4);
  background: rgba(198,161,91,.07);
}
.fs-tag i {
  width: 7px; height: 7px; border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 8px rgba(16,185,129,.6);
  animation: led 2.2s ease-in-out infinite;
}
@keyframes led { 0%,100% { opacity: 1; } 50% { opacity: .35; } }
.fs-copy h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  line-height: 1.12;
  margin-top: 24px;
  letter-spacing: -.01em;
}
.fs-copy .deploy {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--dk-mute);
  margin-top: 12px;
}
.fs-copy > p { color: var(--dk-mute); font-size: 15px; line-height: 1.8; margin-top: 18px; max-width: 50ch; }
.fs-problem {
  margin-top: 22px;
  padding: 16px 20px;
  border-left: 2px solid var(--gold-bright);
  background: linear-gradient(90deg, rgba(198,161,91,.08), transparent);
  border-radius: 0 12px 12px 0;
  font-size: 13.5px; line-height: 1.7;
  color: var(--dk-mute);
}
.fs-problem strong { color: var(--dk-text); }

.fs-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
}
.fs-metric {
  padding: 16px 18px;
  border-radius: 14px;
  border: 1px solid var(--dk-line);
  background: var(--dk-glass);
}
.fs-metric b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 500;
  color: var(--gold);
  font-style: italic;
}
.fs-metric > span { font-size: 11.5px; color: var(--dk-mute); letter-spacing: .02em; display: block; margin-top: 6px; line-height: 1.55; }

.fs-actions { display: flex; align-items: center; gap: 20px; margin-top: 30px; flex-wrap: wrap; }

/* ---- automation map (featured) ---- */
.fs-map {
  position: relative;
  padding: clamp(26px, 3vw, 44px);
  display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(420px 320px at 60% 40%, rgba(198,161,91,.09), transparent 70%);
  border-left: 1px solid var(--dk-line);
}
.fs-map svg { width: 100%; max-width: 520px; height: auto; }

/* ============================================================
   Schematics — shared node/wire animation (hero + featured)
   ============================================================ */
.mnode rect {
  fill: #FFFFFF;
  stroke: var(--dk-line2);
  stroke-width: 1;
  transition: stroke .6s var(--ease-expo), filter .6s;
}
.mnode text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: .14em;
  fill: var(--dk-mute);
  transition: fill .6s;
}
.mnode .mnode-dot { fill: var(--dk-dim); transition: fill .6s; }
.schematic.active .mnode rect { stroke: rgba(161,98,7,.65); filter: drop-shadow(0 0 12px rgba(198,161,91,.25)); }
.schematic.active .mnode text { fill: var(--ink); }
.schematic.active .mnode .mnode-dot { fill: var(--gold-bright); }
.schematic .mnode { transition-delay: 0s; }
.schematic.active .mnode:nth-of-type(1) rect, .schematic.active .mnode:nth-of-type(1) text { transition-delay: .1s; }
.schematic.active .mnode:nth-of-type(2) rect, .schematic.active .mnode:nth-of-type(2) text { transition-delay: .35s; }
.schematic.active .mnode:nth-of-type(3) rect, .schematic.active .mnode:nth-of-type(3) text { transition-delay: .6s; }
.schematic.active .mnode:nth-of-type(4) rect, .schematic.active .mnode:nth-of-type(4) text { transition-delay: .85s; }
.schematic.active .mnode:nth-of-type(5) rect, .schematic.active .mnode:nth-of-type(5) text { transition-delay: 1.1s; }
.schematic.active .mnode:nth-of-type(6) rect, .schematic.active .mnode:nth-of-type(6) text { transition-delay: 1.25s; }
.schematic.active .mnode:nth-of-type(7) rect, .schematic.active .mnode:nth-of-type(7) text { transition-delay: 1.4s; }
.schematic.active .mnode:nth-of-type(8) rect, .schematic.active .mnode:nth-of-type(8) text { transition-delay: 1.55s; }
.schematic.active .mnode:nth-of-type(9) rect, .schematic.active .mnode:nth-of-type(9) text { transition-delay: 1.7s; }
/* keep the hero's core node styled even while nodes animate in */
.schematic.active .cc-core rect { stroke: rgba(198,161,91,.85); }
.schematic.active .cc-core text { fill: #E4CD97; }

.wire {
  fill: none;
  stroke: rgba(161,98,7,.5);
  stroke-width: 1.4;
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
  transition: stroke-dashoffset 1.4s var(--ease-expo);
}
.schematic.active .wire-1 { stroke-dashoffset: 0; transition-delay: .2s; }
.schematic.active .wire-2 { stroke-dashoffset: 0; transition-delay: .5s; }
.schematic.active .wire-3 { stroke-dashoffset: 0; transition-delay: .75s; }
.schematic.active .wire-4 { stroke-dashoffset: 0; transition-delay: 1s; }
.schematic.active .wire-5 { stroke-dashoffset: 0; transition-delay: 1.05s; }
.schematic.active .wire-6 { stroke-dashoffset: 0; transition-delay: 1.1s; }
.schematic.active .wire-7 { stroke-dashoffset: 0; transition-delay: 1.35s; }
.schematic.active .wire-8 { stroke-dashoffset: 0; transition-delay: 1.4s; }
.schematic.active .wire-9 { stroke-dashoffset: 0; transition-delay: 1.45s; }

.pulse-dot { fill: var(--gold-bright); opacity: 0; transition: opacity .5s 1.6s; filter: drop-shadow(0 0 6px rgba(228,205,151,.9)); }
.schematic.active .pulse-dot { opacity: 1; }

.map-float-1 { animation: mfloat 6s ease-in-out infinite alternate; }
.map-float-2 { animation: mfloat 7.5s ease-in-out .8s infinite alternate; }
.map-float-3 { animation: mfloat 8.5s ease-in-out 1.6s infinite alternate; }
@keyframes mfloat { to { transform: translateY(-6px); } }

.map-status {
  opacity: 0;
  transition: opacity .8s var(--ease-expo) 1.9s;
}
.schematic.active .map-status { opacity: 1; }
.map-status text { font-family: 'JetBrains Mono', monospace; font-size: 10px; letter-spacing: .2em; fill: #047857; }
.map-status circle { fill: #047857; }

/* ============================================================
   Filters (glowing pills)
   ============================================================ */
.vault-page .filter-bar { margin-top: 40px; }
.vault-page .filter-btn {
  background: var(--dk-glass);
  border-color: var(--dk-line2);
  color: var(--dk-mute);
  box-shadow: none;
  min-height: 44px;
}
.vault-page .filter-btn:hover {
  border-color: rgba(198,161,91,.6);
  color: var(--dk-text);
}
.vault-page .filter-btn.active {
  background: linear-gradient(120deg, rgba(198,161,91,.22), rgba(198,161,91,.08));
  border-color: var(--gold);
  color: #7A5504;
  box-shadow: 0 0 20px rgba(198,161,91,.25), inset 0 1px 0 rgba(255,255,255,.6);
}

/* ============================================================
   System capsules
   ============================================================ */
.sys-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.sys-card {
  position: relative;
  border-radius: 22px;
  border: 1px solid var(--dk-line);
  background: linear-gradient(165deg, var(--dk-glass2), rgba(255,250,240,.015) 60%);
  overflow: hidden;
  transition: transform .6s var(--ease-expo), box-shadow .6s, border-color .5s;
  isolation: isolate;
  will-change: transform;
}
.sys-card:hover {
  transform: translateY(-6px);
  border-color: rgba(198,161,91,.4);
  box-shadow: 0 22px 56px rgba(28,25,23,.12), 0 0 30px rgba(198,161,91,.10);
}
.sys-card.hidden { display: none; }
.sys-card.rec-flash { animation: rec-flash 2.2s var(--ease-expo); }
@keyframes rec-flash {
  0%, 60% { border-color: var(--gold); box-shadow: 0 0 0 4px rgba(198,161,91,.18), 0 22px 56px rgba(28,25,23,.12); }
  100% { border-color: var(--dk-line); }
}
.sys-glare {
  position: absolute; inset: 0;
  background: radial-gradient(500px circle at var(--mx, 50%) var(--my, 50%), rgba(198,161,91,.08), transparent 45%);
  opacity: 0;
  transition: opacity .5s;
  pointer-events: none;
  z-index: 1;
}
.sys-card:hover .sys-glare { opacity: 1; }

.sys-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--dk-line);
  background: rgba(250, 249, 246, .8);
}
.sys-code {
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .24em;
  color: var(--dk-dim);
}
.sys-status {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 9.5px; letter-spacing: .2em;
  white-space: nowrap;
}
.sys-status.demo { color: #047857; }
.sys-status.proto { color: #0369A1; }
.sys-status.concept { color: var(--gold); }
.sys-status i {
  width: 6px; height: 6px; border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
  animation: led 2.4s ease-in-out infinite;
}

.sys-visual {
  height: 210px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(300px 160px at 50% 20%, rgba(198,161,91,.10), transparent 75%),
    linear-gradient(180deg, var(--dk-base), #FFFFFF);
  border-bottom: 1px solid var(--dk-line);
  display: flex; align-items: center; justify-content: center;
}
.sys-visual svg { width: 86%; max-height: 180px; }

.sys-body { padding: 26px 26px 28px; position: relative; z-index: 2; }
.sys-cat {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--gold);
}
.sys-body h3 {
  font-family: var(--font-display);
  font-size: 1.45rem; font-weight: 500;
  letter-spacing: -.005em;
  margin-top: 10px;
  color: var(--dk-text);
}
.sys-body h3 .code-name { color: var(--gold); font-style: italic; }
.sys-desc { margin-top: 10px; font-size: 14px; line-height: 1.75; color: var(--dk-mute); }

.sys-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--dk-line);
}
.sys-metrics.qual { position: relative; padding-top: 30px; }
.sys-metrics.qual::before {
  content: attr(data-label);
  position: absolute; top: 12px; left: 0;
  font-family: var(--font-mono);
  font-size: 9px; letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--gold);
}
.sys-metrics.qual .sm b {
  display: block;
  font-family: var(--font-body);
  font-size: 12.5px; font-weight: 600;
  line-height: 1.45;
  white-space: normal;
  color: var(--dk-text);
}

.sys-tools { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 18px; }
.sys-tools span {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .06em;
  padding: 5px 11px;
  border-radius: 100px;
  border: 1px solid var(--dk-line2);
  color: var(--dk-mute);
  background: var(--dk-glass);
  transition: border-color .3s, color .3s;
}
.sys-card:hover .sys-tools span { border-color: rgba(198,161,91,.35); }

.sys-cta {
  display: inline-flex; align-items: center; gap: 10px;
  margin-top: 22px;
  min-height: 46px;
  padding: 12px 22px;
  border-radius: 100px;
  border: 1px solid var(--dk-line2);
  background: var(--dk-glass);
  color: var(--dk-text);
  font-size: 13.5px; font-weight: 600;
  letter-spacing: .02em;
  cursor: pointer;
  transition: border-color .35s, background .35s, box-shadow .4s;
}
.sys-cta:hover {
  border-color: var(--gold);
  background: rgba(198,161,91,.1);
  box-shadow: 0 0 18px rgba(198,161,91,.22);
}
.sys-cta svg { transition: transform .45s var(--ease-expo); }
.sys-cta:hover svg { transform: translateX(3px); }

/* ---- architecture flow chips (cards + modal) ---- */
.sd-label {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 22px 0 14px;
}
.flow { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.fnode {
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .08em;
  padding: 8px 13px;
  border-radius: 9px;
  border: 1px solid rgba(198,161,91,.35);
  background: rgba(198,161,91,.07);
  color: #7A5504;
  white-space: nowrap;
}
.fnode.hub { background: rgba(198,161,91,.18); border-color: var(--gold); }
.farrow {
  width: 26px; height: 2px;
  background-image: linear-gradient(90deg, var(--gold-bright) 55%, transparent 55%);
  background-size: 8px 2px;
  animation: farrow-flow 1s linear infinite;
  position: relative;
  flex-shrink: 0;
}
@keyframes farrow-flow { to { background-position: 8px 0; } }

/* ---- shared SVG mockup animations ---- */
.v-line {
  stroke: rgba(198,161,91,.6);
  stroke-width: 1.3;
  stroke-dasharray: 5 6;
  animation: v-dash 1.3s linear infinite;
}
@keyframes v-dash { to { stroke-dashoffset: -11; } }
.v-blink { animation: led 2s ease-in-out infinite; }
.v-blink-2 { animation: led 2s ease-in-out .7s infinite; }
.v-blink-3 { animation: led 2s ease-in-out 1.4s infinite; }
.v-bar {
  transform: scaleY(0);
  transform-origin: bottom;
  transform-box: fill-box;
  transition: transform 1.1s var(--ease-expo);
}
.reveal.in .v-bar { transform: scaleY(1); }
.reveal.in .v-bar:nth-of-type(2) { transition-delay: .15s; }
.reveal.in .v-bar:nth-of-type(3) { transition-delay: .3s; }
.reveal.in .v-bar:nth-of-type(4) { transition-delay: .45s; }
.v-fill {
  transform: scaleX(0);
  transform-origin: left;
  transform-box: fill-box;
  transition: transform 1.2s var(--ease-expo) .3s;
}
.reveal.in .v-fill { transform: scaleX(1); }
.v-draw {
  stroke-dasharray: 300;
  stroke-dashoffset: 300;
  transition: stroke-dashoffset 1.6s var(--ease-expo) .3s;
}
.reveal.in .v-draw { stroke-dashoffset: 0; }
.v-pop {
  opacity: 0;
  transform: translateY(6px);
  transform-box: fill-box;
  transition: opacity .6s var(--ease-expo), transform .6s var(--ease-expo);
}
.reveal.in .v-pop { opacity: 1; transform: translateY(0); }
.reveal.in .v-pop.d1 { transition-delay: .2s; }
.reveal.in .v-pop.d2 { transition-delay: .45s; }
.reveal.in .v-pop.d3 { transition-delay: .7s; }
.reveal.in .v-pop.d4 { transition-delay: .95s; }
.v-card-move { animation: v-slide 5s var(--ease-expo) infinite; }
@keyframes v-slide {
  0%, 18% { transform: translateX(0); opacity: 1; }
  38%, 58% { transform: translateX(72px); }
  78%, 92% { transform: translateX(144px); }
  100% { transform: translateX(144px); opacity: 0; }
}
.v-wave {
  stroke: var(--gold-bright);
  stroke-width: 1.6;
  fill: none;
  stroke-linecap: round;
  animation: v-wave-pulse 2.2s ease-in-out infinite;
}
@keyframes v-wave-pulse { 0%,100% { opacity: .45; } 50% { opacity: 1; } }
.v-mono { font-family: 'JetBrains Mono', monospace; letter-spacing: .1em; }
.v-typing circle { fill: var(--dk-mute); animation: led 1.2s ease-in-out infinite; }
.v-typing circle:nth-of-type(2) { animation-delay: .2s; }
.v-typing circle:nth-of-type(3) { animation-delay: .4s; }

/* ============================================================
   System preview modal
   ============================================================ */
.sys-modal {
  position: fixed; inset: 0;
  z-index: 9500; /* above .nav (9000), below cursor layers (~10000) */
  display: grid;
  place-items: center;
  padding: clamp(14px, 3vw, 40px);
}
.sys-modal[hidden] { display: none; }
.sys-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(28,25,23,.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: smx-fade .35s ease both;
}
@keyframes smx-fade { from { opacity: 0; } }
.sys-modal-card {
  position: relative;
  width: min(720px, 100%);
  max-height: min(86vh, 900px);
  overflow-y: auto;
  overscroll-behavior: contain;
  background: linear-gradient(170deg, #FFFFFF, var(--dk-base) 80%);
  border: 1px solid rgba(198,161,91,.4);
  border-radius: 24px;
  padding: clamp(26px, 4vw, 44px);
  box-shadow: 0 40px 90px rgba(28,25,23,.28), 0 0 40px rgba(198,161,91,.12);
  animation: smx-in .55s var(--ease-expo) both;
}
@keyframes smx-in {
  from { opacity: 0; transform: translateY(26px) scale(.97); }
  to   { opacity: 1; transform: none; }
}
.sys-modal-close {
  position: sticky;
  top: 0;
  float: right;
  margin: -8px -8px 0 12px;
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--dk-line2);
  background: #FFFFFF;
  color: var(--dk-mute);
  cursor: pointer;
  z-index: 2;
  transition: color .3s, border-color .3s, transform .3s;
}
.sys-modal-close:hover { color: var(--dk-text); border-color: var(--gold); transform: rotate(90deg); }
.sys-modal-close:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 2px; }

.smx-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--dk-line);
}
.smx-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 500;
  letter-spacing: -.008em;
  margin-top: 18px;
  color: var(--dk-text);
}
.smx-title .code-name { color: var(--gold); font-style: italic; }
.smx-grid { display: grid; gap: 16px; margin-top: 24px; }
.smx-block {
  padding: 16px 20px;
  border-radius: 14px;
  border: 1px solid var(--dk-line);
  background: var(--dk-glass);
}
.smx-block h4 {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--gold);
}
.smx-block p { margin-top: 8px; font-size: 13.5px; line-height: 1.75; color: var(--dk-mute); }
.sys-modal .sys-tools { margin-top: 22px; }
.smx-honesty {
  margin-top: 22px;
  padding: 12px 18px;
  border: 1px dashed rgba(198,161,91,.45);
  border-radius: 12px;
  background: rgba(243,233,210,.25);
  font-size: 12.5px; line-height: 1.65;
  color: var(--dk-mute);
}
.smx-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 24px; }

/* ============================================================
   Choose-your-bottleneck recommender
   ============================================================ */
.rec-chips {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 40px;
}
.rec-chip {
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--dk-line2);
  background: var(--dk-glass);
  color: var(--dk-mute);
  font-size: 13.5px; font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.45;
  text-align: left;
  cursor: pointer;
  min-height: 56px;
  transition: border-color .35s, color .35s, background .35s, box-shadow .4s, transform .4s var(--ease-expo);
}
.rec-chip:hover {
  border-color: rgba(198,161,91,.6);
  color: var(--dk-text);
  transform: translateY(-2px);
}
.rec-chip:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 2px; }
.rec-chip[aria-pressed="true"] {
  background: linear-gradient(120deg, rgba(198,161,91,.22), rgba(198,161,91,.08));
  border-color: var(--gold);
  color: #7A5504;
  box-shadow: 0 0 20px rgba(198,161,91,.25), inset 0 1px 0 rgba(255,255,255,.6);
}

.rec-panel {
  margin-top: 22px;
  border-radius: 20px;
  border: 1px solid var(--dk-line);
  background: linear-gradient(165deg, #FFFFFF, var(--dk-base) 80%);
  padding: clamp(24px, 3.5vw, 40px);
  min-height: 120px;
  box-shadow: var(--shadow-md);
}
.rec-hint {
  font-family: var(--font-mono);
  font-size: 11.5px; letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--dk-dim);
}
.rec-result { animation: rec-in .5s var(--ease-expo) both; }
@keyframes rec-in {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}
.rec-code {
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--gold);
}
.rec-result h3 {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  font-weight: 500;
  margin-top: 8px;
  color: var(--dk-text);
}
.rec-result h3 em { color: var(--gold); font-style: italic; }
.rec-why { margin-top: 12px; font-size: 14px; line-height: 1.75; color: var(--dk-mute); max-width: 66ch; }
.rec-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 20px; }
.rec-preview-btn {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 46px;
  padding: 12px 22px;
  border-radius: 100px;
  border: 1px solid var(--gold);
  background: rgba(198,161,91,.1);
  color: #7A5504;
  font-size: 13.5px; font-weight: 600;
  cursor: pointer;
  transition: background .35s, box-shadow .4s;
}
.rec-preview-btn:hover { background: rgba(198,161,91,.2); box-shadow: 0 0 18px rgba(198,161,91,.25); }
.rec-preview-btn:focus-visible { outline: 2px solid var(--gold-bright); outline-offset: 2px; }
.rec-actions .link-arrow { color: var(--dk-mute); }
.rec-actions .link-arrow:hover { color: var(--gold); }

/* ============================================================
   From Concept to Build
   ============================================================ */
.ctb-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 48px;
}
.ctb-step {
  position: relative;
  padding: 26px 24px 30px;
  border-radius: 20px;
  border: 1px solid var(--dk-line);
  background: linear-gradient(170deg, #FFFFFF, var(--dk-base) 85%);
  transition: transform .5s var(--ease-expo), border-color .4s, box-shadow .5s;
}
.ctb-step:hover {
  transform: translateY(-4px);
  border-color: rgba(198,161,91,.45);
  box-shadow: 0 16px 40px rgba(28,25,23,.1);
}
.ctb-num {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .26em;
  color: var(--gold);
}
.ctb-step h3 {
  font-family: var(--font-display);
  font-size: 1.3rem; font-weight: 500;
  margin-top: 12px;
  color: var(--dk-text);
}
.ctb-step p { margin-top: 10px; font-size: 13px; line-height: 1.7; color: var(--dk-mute); }
.ctb-tag {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 9.5px; letter-spacing: .2em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 100px;
  border: 1px solid rgba(198,161,91,.4);
  background: rgba(198,161,91,.08);
  color: #7A5504;
}
.ctb-step:first-child .ctb-tag {
  background: rgba(198,161,91,.2);
  border-color: var(--gold);
}

/* ============================================================
   Honesty note
   ============================================================ */
.dk-note {
  margin: 34px auto 0;
  max-width: 620px;
  text-align: center;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--dk-mute);
  padding: 14px 22px;
  border: 1px dashed rgba(198,161,91,.45);
  border-radius: 14px;
  background: rgba(243,233,210,.25);
}
.dk-note strong { color: var(--dk-text); }

/* ============================================================
   Build Your System CTA
   ============================================================ */
.build-cta {
  position: relative;
  border-radius: 32px;
  border: 1px solid rgba(198,161,91,.3);
  background:
    radial-gradient(500px 300px at 20% 0%, rgba(198,161,91,.12), transparent 65%),
    radial-gradient(500px 300px at 85% 100%, rgba(198,161,91,.09), transparent 65%),
    linear-gradient(165deg, var(--dk-elev), var(--dk-deep));
  padding: clamp(56px, 8vw, 100px) clamp(26px, 6vw, 80px);
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}
.build-cta .dk-beam { top: 0; animation-duration: 5.5s; }
.build-cta h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.1;
  max-width: 20ch;
  margin: 20px auto 0;
  letter-spacing: -.012em;
}
.build-cta > p {
  color: var(--dk-mute);
  max-width: 52ch;
  margin: 20px auto 0;
  font-size: 15px; line-height: 1.8;
}
.build-cta .cta-eyebrow { color: var(--gold); }
.build-cta .fs-actions { justify-content: center; margin-top: 36px; }
.build-note {
  margin-top: 24px;
  font-family: var(--font-mono);
  font-size: 10.5px; letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--dk-dim);
}

/* ============================================================
   Footer — vault variant
   ============================================================ */
.vault-page .footer {
  background: var(--bg-warm);
  border-top-color: var(--border);
}
.vault-page .footer-brand p, .vault-page .footer ul a { color: var(--dk-mute); }
.vault-page .footer ul a:hover { color: var(--gold); }
.vault-page .footer h4 { color: var(--dk-dim); }
.vault-page .footer-social a { border-color: var(--dk-line2); color: var(--dk-mute); }
.vault-page .footer-social a:hover { background: var(--gold-bright); color: var(--dk-deep); border-color: var(--gold); }
.vault-page .footer-bottom { border-top-color: var(--dk-line); color: var(--dk-dim); }
.vault-page .footer-wordmark {
  background: linear-gradient(180deg, rgba(28,25,23,.14), rgba(28,25,23,.02));
  -webkit-background-clip: text;
  background-clip: text;
}

/* ghost button vault variant */
.vault-page .btn-ghost {
  background: linear-gradient(180deg, #FFFFFF, #F6F4EE);
  border-color: var(--border-strong);
  color: var(--ink);
}
.vault-page .btn-ghost:hover {
  border-color: var(--gold);
  background: rgba(198,161,91,.09);
  box-shadow: 0 0 26px rgba(198,161,91,.15);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1080px) {
  .featured-sys { grid-template-columns: 1fr; }
  .fs-map { border-left: none; border-top: 1px solid var(--dk-line); min-height: 380px; }
  .ctb-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .sys-grid { grid-template-columns: 1fr; }
  .fs-metrics { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .sys-visual { height: 190px; }
  .rec-chips { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .fs-metrics { grid-template-columns: 1fr; }
  .sys-metrics { grid-template-columns: 1fr 1fr; }
  .dk-hero-stats { gap: 22px; }
  .fs-actions .btn-gold, .fs-actions .btn-ghost { width: 100%; justify-content: center; }
  .flow { gap: 6px; }
  .farrow { width: 16px; }
  .rec-chips { grid-template-columns: 1fr; }
  .ctb-grid { grid-template-columns: 1fr; }
  .cc-head { flex-direction: column; align-items: flex-start; gap: 8px; }
}

/* ============================================================
   Reduced motion — show final states immediately
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .dk-blob-1, .dk-blob-2, .dk-beam, .map-float-1, .map-float-2, .map-float-3,
  .cc-float-a, .cc-float-b, .cc-float-c,
  .v-card-move, .farrow, .v-wave, .v-line { animation: none !important; }
  .wire { stroke-dashoffset: 0 !important; }
  .pulse-dot, .pulse-track { display: none; }
  .mnode rect { stroke: rgba(161,98,7,.65) !important; }
  .mnode text { fill: var(--ink) !important; }
  .cc-core text { fill: #E4CD97 !important; }
  .map-status { opacity: 1 !important; }
  .v-bar, .v-fill { transform: none !important; }
  .v-draw { stroke-dashoffset: 0 !important; }
  .v-pop { opacity: 1 !important; transform: none !important; }
  .sys-modal-backdrop, .sys-modal-card, .rec-result { animation: none !important; }
  .sys-card.rec-flash { animation: none !important; }
}