/* ===========================================================
   Build Savvy — design tokens
   Palette:  black #05070A (bg) · panel #0D1117 · line #1B2530
             blue (trace) #4C8DFF · accent (cta) #2E6FF2 / #5B93FF
             white #F2F5F9 · grey #93A0AF
   Type:     Space Grotesk (display) · Inter (body) · IBM Plex Mono (labels)
=========================================================== */

:root{
  --black:       #05070A;
  --black-deep:  #020304;
  --panel:       #0D1117;
  --panel-glass: rgba(13,17,23,0.72);
  --panel-line:  #1B2530;
  --grid-line:   rgba(90,160,255,0.07);
  --grid-line-strong: rgba(90,160,255,0.17);
  --blue:        #4C8DFF;
  --blue-dim:    rgba(76,141,255,0.55);
  --blue-glow:   rgba(76,141,255,0.35);
  --blue-deep:   #1B3FA6;
  --accent:      #2E6FF2;
  --accent-bright:#5B93FF;
  --white:       #F2F5F9;
  --grey:        #93A0AF;

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;

  --wrap: 1180px;
  --ease: cubic-bezier(.22,.9,.32,1);
  --ease-fast: cubic-bezier(.3,.7,.4,1);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body{
  margin:0;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* thin modern scrollbar */
::-webkit-scrollbar{ width: 10px; height: 10px; }
::-webkit-scrollbar-track{ background: var(--black); }
::-webkit-scrollbar-thumb{ background: var(--panel-line); border-radius: 6px; border: 2px solid var(--black); }
::-webkit-scrollbar-thumb:hover{ background: var(--blue-dim); }
* { scrollbar-width: thin; scrollbar-color: var(--panel-line) var(--black); }

img,svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }

.wrap{
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 32px;
}

h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 .5em;
  letter-spacing: -0.01em;
}

:focus-visible{
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

/* ---------- glow blobs (signature "fancy" backdrop) ---------- */
@keyframes drift{
  0%,100%{ transform: translate(0,0) scale(1); }
  50%{ transform: translate(24px,-18px) scale(1.06); }
}
@keyframes drift-alt{
  0%,100%{ transform: translate(0,0) scale(1); }
  50%{ transform: translate(-20px,16px) scale(1.04); }
}
.glow-field{ position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.glow-field::before, .glow-field::after{
  content: "";
  position: absolute;
  width: 46vw; height: 46vw;
  max-width: 620px; max-height: 620px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .35;
}
.glow-field::before{
  top: -14%; left: -8%;
  background: radial-gradient(circle at 30% 30%, rgba(76,141,255,0.55), transparent 70%);
  animation: drift 16s ease-in-out infinite;
}
.glow-field::after{
  bottom: -18%; right: -10%;
  background: radial-gradient(circle at 60% 60%, rgba(46,111,242,0.4), transparent 70%);
  animation: drift-alt 20s ease-in-out infinite;
}

/* ---------- reveal-on-scroll ---------- */
.reveal{
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }
.reveal-group .reveal:nth-child(1){ transition-delay: .03s; }
.reveal-group .reveal:nth-child(2){ transition-delay: .10s; }
.reveal-group .reveal:nth-child(3){ transition-delay: .17s; }
.reveal-group .reveal:nth-child(4){ transition-delay: .24s; }
.reveal-group .reveal:nth-child(5){ transition-delay: .31s; }

/* ---------- gradient text ---------- */
.grad-text, .hero h1{
  background: linear-gradient(100deg, var(--white) 20%, var(--accent-bright) 60%, var(--blue) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- buttons ---------- */
.btn{
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  overflow: hidden;
  will-change: transform;
  transition: filter .12s var(--ease-fast), color .12s var(--ease-fast), border-color .12s var(--ease-fast), transform .12s var(--ease-fast), box-shadow .12s var(--ease-fast);
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px) scale(.99); }
.btn-primary{
  /* Static gradient — animating background-position on hover is expensive
     to repaint, so the hover state instead brightens via filter (cheap,
     GPU-composited) which stays smooth even on rapid mouse movement. */
  background: linear-gradient(135deg, var(--accent-bright), var(--accent) 60%, var(--blue-deep));
  color: var(--white);
  font-weight: 600;
  box-shadow: 0 6px 20px -8px rgba(46,111,242,0.55);
}
.btn-primary::after{
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform .3s var(--ease-fast);
}
.btn-primary:hover{ filter: brightness(1.14); box-shadow: 0 10px 28px -8px rgba(46,111,242,0.75); transform: translateY(-1px); }
.btn-primary:hover::after{ transform: translateX(120%); }
.btn-ghost{
  background: rgba(255,255,255,0.02);
  color: var(--white);
  border-color: var(--panel-line);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover{ border-color: var(--blue-dim); color: var(--blue); transform: translateY(-1px); box-shadow: 0 0 0 3px rgba(76,141,255,0.08); }
.btn-outline{
  width: 100%;
  margin-top: 20px;
  background: transparent;
  color: var(--blue);
  border-color: var(--panel-line);
}
.btn-outline:hover{ border-color: var(--blue); background: rgba(76,141,255,0.07); transform: translateY(-1px); box-shadow: 0 0 0 3px rgba(76,141,255,0.08); }
.btn-block{ width: 100%; }
.btn:disabled{ opacity: .6; cursor: not-allowed; transform: none !important; }

/* ---------- grid backdrop (signature texture) ---------- */
.grid-backdrop{
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 40%, transparent 90%);
  pointer-events: none;
}

.corner{
  position: absolute;
  width: 26px; height: 26px;
  border: 1.4px solid var(--grid-line-strong);
  pointer-events: none;
}
.corner-tl{ top: 96px; left: 24px; border-right: none; border-bottom: none; }
.corner-tr{ top: 96px; right: 24px; border-left: none; border-bottom: none; }
.corner-bl{ bottom: 24px; left: 24px; border-right: none; border-top: none; }
.corner-br{ bottom: 24px; right: 24px; border-left: none; border-top: none; }

/* ===========================================================
   Header
=========================================================== */
.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5,7,10,0.72);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--panel-line);
  transition: box-shadow .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}
.site-header.scrolled{
  background: rgba(5,7,10,0.88);
  box-shadow: 0 12px 32px -16px rgba(0,0,0,.7), 0 1px 0 rgba(76,141,255,0.15);
}
.header-inner{
  display: flex;
  align-items: center;
  gap: 24px;
  height: 72px;
}
.logo{
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
  margin-right: auto;
}
.logo-mark{ color: var(--blue); display: inline-flex; filter: drop-shadow(0 0 6px rgba(76,141,255,0.5)); }
.main-nav{
  display: flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--grey);
}
.main-nav a{ position: relative; padding-bottom: 3px; transition: color .18s var(--ease); }
.main-nav a::after{
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--blue), var(--accent-bright));
  transition: right .22s var(--ease);
}
.main-nav a:hover{ color: var(--white); }
.main-nav a:hover::after{ right: 0; }
.main-nav a.current{ color: var(--blue); }
.btn-nav{ margin-left: 4px; }

.nav-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px; height: 34px;
  background: none;
  border: 1px solid var(--panel-line);
  border-radius: 6px;
  cursor: pointer;
}
.nav-toggle span{
  display: block;
  width: 16px; height: 1.4px;
  background: var(--white);
  margin: 0 auto;
  transition: transform .2s ease, opacity .2s ease;
}

/* ===========================================================
   Hero
=========================================================== */
.hero{
  position: relative;
  overflow: hidden;
  padding: 88px 0 80px;
  border-bottom: 1px solid var(--panel-line);
}
.hero-inner{
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
.eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--accent-bright);
  margin: 0 0 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before{
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 8px 2px rgba(91,147,255,0.7);
}
.hero h1{
  font-size: clamp(34px, 4.4vw, 54px);
}
.hero-sub{
  color: var(--grey);
  font-size: 16.5px;
  max-width: 46ch;
  margin: 18px 0 32px;
}
.hero-actions{ display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }

.hero-stats{
  display: flex;
  gap: 36px;
  border-top: 1px solid var(--panel-line);
  padding-top: 22px;
}
.hero-stats div{ display: flex; flex-direction: column; gap: 4px; }
.hero-stats .num{
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--blue);
  font-weight: 600;
  text-shadow: 0 0 18px rgba(76,141,255,0.35);
}
.hero-stats .label{
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--grey);
  max-width: 14ch;
}

.hero-diagram{ position: relative; }
.hero-diagram::before{
  content: "";
  position: absolute;
  inset: -10%;
  background: radial-gradient(circle at 50% 45%, rgba(76,141,255,0.16), transparent 65%);
  filter: blur(20px);
  z-index: -1;
}
#pc-schematic{ width: 100%; height: auto; overflow: visible; }
#pc-schematic .case-outline{
  fill: rgba(76,141,255,0.03);
  stroke: var(--blue);
  stroke-width: 1.6;
}
#pc-schematic .case-outline.thin{ stroke-width: 1; opacity: .5; }
#pc-schematic .part-line{
  fill: none;
  stroke: var(--blue);
  stroke-width: 1.2;
  opacity: .85;
}
#pc-schematic .part-line.thin{ stroke-width: .8; opacity: .5; }
#pc-schematic .part-line.dim-op{ opacity: .35; }
#pc-schematic .part-line.fill-trace{ fill: rgba(46,111,242,0.14); stroke: var(--accent-bright); }
#pc-schematic .dim{ stroke: var(--grid-line-strong); stroke-width: 1; fill: var(--grey); }
#pc-schematic .callout line{ stroke: var(--accent-bright); stroke-width: 1; stroke-dasharray: 2 3; }
#pc-schematic .callout circle{ fill: var(--accent-bright); }
#pc-schematic .callout text{ fill: var(--white); font-family: 'IBM Plex Mono', monospace; font-size: 12px; font-weight: 500; }
#pc-schematic .callout text.sub{ fill: var(--grey); font-size: 9.5px; font-weight: 400; }

#pc-schematic .draw{
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw-on 2.1s ease forwards;
}
@keyframes draw-on{ to{ stroke-dashoffset: 0; } }
@keyframes fade-up{
  from{ opacity: 0; transform: translateY(10px); }
  to{ opacity: 1; transform: translateY(0); }
}
.callout{ opacity: 0; animation: fade-up .5s ease forwards; }

/* Fan blades spin continuously — cheap, GPU-friendly transform animation
   that gives the diagram some life without any JS involved. */
#pc-schematic .fan-blades{
  transform-box: fill-box;
  transform-origin: center;
  animation: fan-spin 6s linear infinite;
}
#pc-schematic .fan-blades.slow{ animation-duration: 7.5s; animation-direction: reverse; }
@keyframes fan-spin{ to{ transform: rotate(360deg); } }

/* A faint pulse travels the case outline to draw the eye on load. */
#pc-schematic .case-outline{ animation: outline-pulse 5s ease-in-out 2.5s infinite; }
@keyframes outline-pulse{
  0%, 100%{ stroke-opacity: 1; }
  50%{ stroke-opacity: .55; }
}

/* The hero diagram tilts toward the cursor (see script.js); this just
   sets up perspective and keeps the transform GPU-composited. */
.hero-diagram{ transform-style: preserve-3d; will-change: transform; }

/* ===========================================================
   Section shells
=========================================================== */
section{ padding: 96px 0; position: relative; }
.section-eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--accent-bright);
  margin: 0 0 14px;
}
.section-title{
  font-size: clamp(26px, 3vw, 36px);
  max-width: 18ch;
}
.section-sub{
  color: var(--grey);
  max-width: 56ch;
  font-size: 16px;
  margin: 14px 0 0;
}

/* page header, used on inner pages (blueprint / about) */
.page-header{
  padding: 64px 0 48px;
  border-bottom: 1px solid var(--panel-line);
  position: relative;
  overflow: hidden;
}
.breadcrumb{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--grey);
  margin: 0 0 20px;
  display: flex;
  align-items: center;
  gap: 8px;
  position: relative;
  z-index: 2;
}
.breadcrumb a:hover{ color: var(--blue); }

/* ===========================================================
   Services
=========================================================== */
.services{ border-bottom: 1px solid var(--panel-line); }
.service-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 52px;
}
.service-card{
  position: relative;
  background: linear-gradient(160deg, rgba(255,255,255,0.025), rgba(255,255,255,0) 40%), var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  padding: 32px 28px 28px;
  display: flex;
  flex-direction: column;
  transition: transform .16s var(--ease-fast), border-color .16s var(--ease-fast), box-shadow .16s var(--ease-fast);
}
.service-card:hover{
  transform: translateY(-6px);
  border-color: var(--blue-dim);
  box-shadow: 0 28px 56px -28px rgba(76,141,255,0.45), 0 0 0 1px rgba(76,141,255,0.12);
}
.service-card.featured{
  border-color: var(--accent);
  background: linear-gradient(165deg, rgba(46,111,242,0.14), var(--panel) 45%);
  box-shadow: 0 0 0 1px rgba(46,111,242,0.25), 0 24px 48px -30px rgba(46,111,242,0.5);
}
.card-corner{
  position: absolute;
  width: 12px; height: 12px;
  border: 1.2px solid var(--blue-dim);
}
.card-corner.tl{ top: -1px; left: -1px; border-right: none; border-bottom: none; border-top-left-radius: 6px; }
.card-corner.tr{ top: -1px; right: -1px; border-left: none; border-bottom: none; border-top-right-radius: 6px; }
.card-corner.bl{ bottom: -1px; left: -1px; border-right: none; border-top: none; border-bottom-left-radius: 6px; }
.card-corner.br{ bottom: -1px; right: -1px; border-left: none; border-top: none; border-bottom-right-radius: 6px; }

.card-tag{
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--blue);
  margin: 0 0 8px;
}
.service-card h3{ font-size: 24px; margin-bottom: 12px; }
.card-desc{ color: var(--grey); font-size: 15px; margin: 0 0 22px; flex-grow: 0; }

.card-specs{
  list-style: none;
  margin: 0 0 22px;
  padding: 16px 0 0;
  border-top: 1px dashed var(--panel-line);
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.card-specs li{
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
}
.card-specs li span:first-child{ color: var(--grey); }
.card-specs li span:last-child{ color: var(--white); text-align: right; }
.card-specs li.highlight span:last-child{ color: var(--accent-bright); font-weight: 600; }

.card-price{
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--panel-line);
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.price{ font-family: var(--font-display); font-size: 21px; font-weight: 600; color: var(--accent-bright); text-shadow: 0 0 16px rgba(91,147,255,0.3); }
.price-note{ font-family: var(--font-mono); font-size: 11.5px; color: var(--grey); }

.service-note{
  margin: 40px auto 0;
  max-width: 640px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--grey);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.service-note svg{ color: var(--blue); flex-shrink: 0; }

/* ===========================================================
   Process
=========================================================== */
.process-line{
  list-style: none;
  margin: 56px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.process-line::before{
  content: "";
  position: absolute;
  top: 14px;
  left: 0; right: 0;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--panel-line) 0 6px, transparent 6px 12px);
}
.process-line li{
  position: relative;
  padding: 0 24px 0 0;
}
.step-index{
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--black);
  background: linear-gradient(135deg, var(--accent-bright), var(--blue));
  width: 28px; height: 28px;
  border-radius: 50%;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 4px var(--black), 0 0 16px rgba(76,141,255,0.5);
  transition: transform .16s var(--ease-fast), box-shadow .16s var(--ease-fast);
}
.process-line li:hover .step-index{ transform: scale(1.15); box-shadow: 0 0 0 4px var(--black), 0 0 24px rgba(76,141,255,0.8); }
.process-line h3{ font-size: 18px; margin-bottom: 8px; }
.process-line p{ color: var(--grey); font-size: 14.5px; margin: 0; }

/* ===========================================================
   Trust
=========================================================== */
.trust{ background: var(--panel); border-bottom: 1px solid var(--panel-line); border-top: 1px solid var(--panel-line); }
.trust-inner{ display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.trust-grid{ display: flex; flex-direction: column; gap: 28px; }
.trust-item{ border-left: 2px solid var(--accent); padding-left: 20px; transition: border-color .14s var(--ease-fast), transform .14s var(--ease-fast); }
.trust-item:hover{ border-color: var(--accent-bright); transform: translateX(4px); }
.trust-num{
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  color: var(--blue);
  margin: 0 0 6px;
  text-shadow: 0 0 18px rgba(76,141,255,0.3);
}
.trust-label{ color: var(--grey); font-size: 14.5px; margin: 0; max-width: 42ch; }

/* ===========================================================
   Social
=========================================================== */
.social{ border-bottom: 1px solid var(--panel-line); }
.social-grid{
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 24px;
  margin-top: 48px;
}
.social-card{
  background: linear-gradient(160deg, rgba(255,255,255,0.025), rgba(255,255,255,0) 40%), var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform .16s var(--ease-fast), border-color .16s var(--ease-fast), box-shadow .16s var(--ease-fast);
}
.social-card:hover{ transform: translateY(-6px); border-color: var(--blue-dim); box-shadow: 0 28px 56px -30px rgba(76,141,255,0.4); }
.social-head{ display: flex; align-items: center; gap: 12px; }
.social-icon{
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--panel-line);
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
  flex-shrink: 0;
  background: radial-gradient(circle, rgba(76,141,255,0.12), transparent 70%);
}
.social-head h3{ font-size: 17px; margin: 0; }
.social-handle{ font-family: var(--font-mono); font-size: 12.5px; color: var(--grey); margin: 0; }
.social-desc{ color: var(--grey); font-size: 14.5px; margin: 0; }

.video-frame{
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--panel-line);
  background: var(--black-deep);
  box-shadow: 0 0 0 1px rgba(76,141,255,0.08);
}
.video-frame iframe{ width: 100%; height: 100%; border: 0; }
.video-label{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--grey);
  letter-spacing: .06em;
  display: flex;
  align-items: center;
  gap: 7px;
}
.video-label .dot{ width: 6px; height: 6px; border-radius: 50%; background: var(--accent-bright); box-shadow: 0 0 0 3px rgba(46,111,242,0.2); }

/* ===========================================================
   Contact
=========================================================== */
.contact{ position: relative; overflow: hidden; }
.contact-inner{
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
.contact-list{ list-style: none; margin: 32px 0 0; padding: 0; display: flex; flex-direction: column; gap: 14px; }
.contact-list li{ display: flex; gap: 16px; font-family: var(--font-mono); font-size: 14px; }
.contact-list li span:first-child{ color: var(--grey); width: 100px; flex-shrink: 0; }
.contact-list a:hover{ color: var(--blue); }

.spec-form{
  background: linear-gradient(160deg, rgba(255,255,255,0.03), rgba(255,255,255,0) 40%), var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 12px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: 0 30px 60px -35px rgba(0,0,0,0.6);
}
.form-row{ display: flex; flex-direction: column; gap: 7px; }
.form-row label{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--grey);
}
.form-row input, .form-row select, .form-row textarea{
  background: var(--black-deep);
  border: 1px solid var(--panel-line);
  border-radius: 6px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 14.5px;
  padding: 11px 12px;
  resize: vertical;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(76,141,255,0.14);
}
.form-status{ min-height: 18px; font-family: var(--font-mono); font-size: 13px; color: var(--blue); margin: 0; }

/* ===========================================================
   Blueprint page — concepts + custom builder
=========================================================== */
.concepts{ border-bottom: 1px solid var(--panel-line); }
.concept-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 48px;
}
.concept-card{
  position: relative;
  background: linear-gradient(160deg, rgba(255,255,255,0.025), rgba(255,255,255,0) 40%), var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 10px;
  padding: 26px 24px 24px;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform .16s var(--ease-fast), border-color .16s var(--ease-fast), box-shadow .16s var(--ease-fast);
  text-align: left;
  color: inherit;
  font: inherit;
}
.concept-card:hover{ transform: translateY(-6px); border-color: var(--blue-dim); box-shadow: 0 28px 56px -30px rgba(76,141,255,0.4); }
.concept-card.selected{ border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 0 32px rgba(46,111,242,0.35); }
.concept-tag{ font-family: var(--font-mono); font-size: 11px; letter-spacing: .07em; color: var(--blue); margin: 0 0 10px; }
.concept-card h3{ font-size: 20px; margin-bottom: 6px; }
.concept-use{ color: var(--grey); font-size: 14px; margin: 0 0 18px; }
.concept-specs{ list-style: none; margin: 0 0 20px; padding: 14px 0 0; border-top: 1px dashed var(--panel-line); display: flex; flex-direction: column; gap: 7px; font-family: var(--font-mono); font-size: 12px; }
.concept-specs li{ display: flex; justify-content: space-between; gap: 10px; }
.concept-specs li span:first-child{ color: var(--grey); }
.concept-specs li span:last-child{ color: var(--white); text-align: right; }
.concept-price{ margin-top: auto; font-family: var(--font-display); font-size: 19px; font-weight: 600; color: var(--accent-bright); }
.concept-select{
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--grey);
  display: flex;
  align-items: center;
  gap: 8px;
}
.concept-select .box{
  width: 15px; height: 15px;
  border: 1.4px solid var(--panel-line);
  border-radius: 4px;
  flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  transition: border-color .14s var(--ease-fast), background .14s var(--ease-fast);
}
.concept-card.selected .concept-select .box{ background: linear-gradient(135deg, var(--accent-bright), var(--accent)); border-color: var(--accent); }
.concept-card.selected .concept-select{ color: var(--white); }

.custom-card{
  border-style: dashed;
  align-items: flex-start;
  justify-content: center;
  background: transparent;
}
.custom-card .concept-tag{ color: var(--accent-bright); }
.custom-icon{
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--panel-line);
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
  margin-bottom: 14px;
  background: radial-gradient(circle, rgba(76,141,255,0.12), transparent 70%);
}
.custom-status{
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--grey);
  margin: 6px 0 0;
  min-height: 14px;
}
.custom-status.is-set{ color: var(--accent-bright); }

.builder-form-section{ padding-top: 0; }
.builder-form-wrap{
  margin-top: 48px;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 48px;
}
.selection-summary{
  background: linear-gradient(160deg, rgba(76,141,255,0.08), rgba(255,255,255,0) 50%), var(--panel);
  border: 1px solid var(--panel-line);
  border-top: 2px solid var(--accent);
  border-radius: 10px;
  padding: 24px;
  align-self: start;
  position: sticky;
  top: 96px;
}
.selection-summary p.label{ font-family: var(--font-mono); font-size: 11px; letter-spacing: .07em; color: var(--grey); margin: 0 0 10px; }
.selection-summary p.chosen{ font-family: var(--font-display); font-size: 20px; font-weight: 600; color: var(--white); margin: 0 0 6px; }
.selection-summary p.chosen-price{ font-family: var(--font-mono); font-size: 13px; color: var(--accent-bright); margin: 0; }

/* ---------- custom build modal ---------- */
.modal-overlay{
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 5vh 20px;
  background: rgba(2,3,4,0.7);
  backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .25s var(--ease), visibility .25s var(--ease);
  overflow-y: auto;
}
.modal-overlay.open{ opacity: 1; visibility: visible; }
.modal-panel{
  position: relative;
  width: 100%;
  max-width: 760px;
  background: linear-gradient(165deg, rgba(76,141,255,0.06), rgba(255,255,255,0) 30%), var(--panel);
  border: 1px solid var(--panel-line);
  border-radius: 14px;
  padding: 36px;
  box-shadow: 0 40px 100px -30px rgba(0,0,0,0.8), 0 0 0 1px rgba(76,141,255,0.08);
  transform: translateY(14px) scale(.98);
  transition: transform .18s var(--ease-fast);
}
.modal-overlay.open .modal-panel{ transform: translateY(0) scale(1); }
.modal-close{
  position: absolute;
  top: 20px; right: 20px;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--panel-line);
  background: rgba(255,255,255,0.02);
  color: var(--grey);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}
.modal-close:hover{ color: var(--white); border-color: var(--blue-dim); transform: rotate(90deg); }
.modal-panel h3{ font-size: 24px; margin-bottom: 8px; }
.modal-sub{ color: var(--grey); font-size: 14.5px; margin: 0 0 28px; max-width: 56ch; }

.modal-group{ margin-bottom: 26px; }
.modal-group h4{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--blue);
  margin: 0 0 12px;
  text-transform: uppercase;
}
.modal-options{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.option-card{
  display: flex;
  flex-direction: column;
  gap: 5px;
  text-align: left;
  background: var(--black-deep);
  border: 1px solid var(--panel-line);
  border-radius: 8px;
  padding: 14px;
  cursor: pointer;
  color: inherit;
  font: inherit;
  transition: transform .14s var(--ease-fast), border-color .14s var(--ease-fast), box-shadow .14s var(--ease-fast), background .14s var(--ease-fast);
}
.option-card:hover{ border-color: var(--blue-dim); transform: translateY(-2px); }
.option-card.selected{
  border-color: var(--accent);
  background: linear-gradient(160deg, rgba(46,111,242,0.16), var(--black-deep) 60%);
  box-shadow: 0 0 0 1px var(--accent), 0 0 20px rgba(46,111,242,0.3);
}
.option-tag{ font-family: var(--font-mono); font-size: 9.5px; letter-spacing: .06em; color: var(--grey); }
.option-card.selected .option-tag{ color: var(--accent-bright); }
.option-name{ font-family: var(--font-display); font-size: 14.5px; font-weight: 600; }
.option-desc{ font-size: 12px; color: var(--grey); line-height: 1.4; flex-grow: 1; }
.option-price{ font-family: var(--font-mono); font-size: 12px; color: var(--accent-bright); margin-top: 4px; }

.modal-footer{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 8px;
  padding-top: 24px;
  border-top: 1px solid var(--panel-line);
  flex-wrap: wrap;
}
.modal-total .label{ display: block; font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .07em; color: var(--grey); margin-bottom: 4px; }
.modal-total .value{ font-family: var(--font-display); font-size: 20px; font-weight: 600; color: var(--white); }

/* ===========================================================
   About page
=========================================================== */
.about-hero{
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 32px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.about-avatar{
  width: 160px; height: 160px;
  border-radius: 12px;
  border: 1px solid var(--panel-line);
  background: linear-gradient(160deg, rgba(76,141,255,0.1), var(--panel));
  display: flex; align-items: center; justify-content: center;
  color: var(--blue);
  box-shadow: 0 20px 40px -20px rgba(76,141,255,0.35);
}
.about-list{
  list-style: none;
  margin: 32px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.about-list li{
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--panel-line);
  transition: background .2s var(--ease);
}
.about-list li:hover{ background: rgba(76,141,255,0.03); }
.about-list li:last-child{ border-bottom: 1px solid var(--panel-line); }
.about-list .period{ font-family: var(--font-mono); font-size: 12.5px; color: var(--grey); }
.about-list h3{ font-size: 17px; margin: 0 0 6px; }
.about-list p{ color: var(--grey); font-size: 14.5px; margin: 0; max-width: 60ch; }

.skill-grid{ display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.skill-tag{
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--blue);
  border: 1px solid var(--panel-line);
  border-radius: 20px;
  padding: 7px 14px;
  transition: border-color .14s var(--ease-fast), color .14s var(--ease-fast), transform .14s var(--ease-fast), box-shadow .14s var(--ease-fast);
}
.skill-tag:hover{ border-color: var(--blue-dim); color: var(--accent-bright); transform: translateY(-2px); box-shadow: 0 8px 16px -8px rgba(76,141,255,0.4); }

.stat-row{ display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 40px; position: relative; z-index: 2; }
.stat-block{ border-top: 2px solid var(--accent); padding-top: 14px; }
.stat-block .stat-num{ font-family: var(--font-display); font-size: 30px; font-weight: 600; color: var(--white); text-shadow: 0 0 20px rgba(76,141,255,0.25); }
.stat-block .stat-label{ font-family: var(--font-mono); font-size: 12px; color: var(--grey); margin-top: 4px; }

/* ===========================================================
   Footer
=========================================================== */
.site-footer{ padding: 40px 0; border-top: 1px solid var(--panel-line); }
.footer-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--grey);
}
.footer-logo{ font-family: var(--font-display); color: var(--white); font-size: 15px; font-weight: 600; }
.footer-links{ display: flex; gap: 18px; }
.footer-links a:hover{ color: var(--blue); }
.footer-copy{ width: 100%; text-align: right; opacity: .7; }

/* ===========================================================
   Anti-spam honeypot
   Positioned off-screen rather than display:none — some bots skip
   display:none/visibility:hidden fields specifically, so this catches
   more of them while staying invisible and unreachable for real visitors.
=========================================================== */
.hp-field{
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* ===========================================================
   Featured builds (about.html) — clickable cards + detail modal
=========================================================== */
.build-card{ cursor: pointer; }
.build-card:focus-visible{ outline: 2px solid var(--blue); outline-offset: 4px; }
.card-hint{
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-bright);
  transition: transform .14s var(--ease-fast);
}
.build-card:hover .card-hint{ transform: translateX(3px); }

#build-modal-specs{ margin-top: 4px; }
#build-modal-body p{ color: var(--grey); font-size: 14.5px; line-height: 1.6; margin: 20px 0; }
#build-modal-link{ margin-top: 8px; }

.build-gallery{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 16px 0;
}
.build-photo{
  aspect-ratio: 4 / 3;
  border-radius: 8px;
  border: 1px dashed var(--panel-line);
  background: var(--black-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--grey);
}

/* ===========================================================
   Responsive
=========================================================== */
@media (max-width: 980px){
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-diagram{ order: -1; max-width: 380px; margin: 0 auto; }
  .service-grid{ grid-template-columns: 1fr; }
  .process-line{ grid-template-columns: 1fr 1fr; gap: 40px 24px; }
  .process-line::before{ display: none; }
  .trust-inner{ grid-template-columns: 1fr; }
  .contact-inner{ grid-template-columns: 1fr; }
  .social-grid{ grid-template-columns: 1fr; }
  .concept-grid{ grid-template-columns: 1fr 1fr; }
  .builder-form-wrap{ grid-template-columns: 1fr; }
  .selection-summary{ position: static; }
  .about-hero{ grid-template-columns: 1fr; text-align: center; }
  .about-avatar{ margin: 0 auto; }
  .stat-row{ grid-template-columns: 1fr 1fr; }
  .modal-options{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px){
  .wrap{ padding: 0 20px; }
  .main-nav{ display: none; }
  .btn-nav{ display: none; }
  .nav-toggle{ display: flex; }
  .header-inner{ height: 64px; }

  .site-header.open .main-nav{
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: var(--black);
    padding: 20px;
    gap: 18px;
    border-bottom: 1px solid var(--panel-line);
  }
  .site-header.open .btn-nav{
    display: inline-flex;
    position: absolute;
    top: 64px; left: 20px; right: 20px;
    margin-top: 220px;
  }

  .hero{ padding: 56px 0 56px; }
  .hero-actions{ flex-direction: column; }
  .hero-actions .btn{ width: 100%; }
  .hero-stats{ flex-wrap: wrap; gap: 20px 28px; }

  section{ padding: 64px 0; }
  .process-line{ grid-template-columns: 1fr; gap: 32px; }
  .concept-grid{ grid-template-columns: 1fr; }
  .stat-row{ grid-template-columns: 1fr 1fr; }
  .footer-copy{ text-align: left; }
  .modal-panel{ padding: 24px; }
  .modal-options{ grid-template-columns: 1fr; }
  .modal-footer{ flex-direction: column; align-items: stretch; }
  .build-gallery{ grid-template-columns: 1fr 1fr; }
}