/* ==========================================================================
   Ruthilabs — Design Tokens
   Concept: "Engineering intelligence, made practical."
   Palette: graphite ink, warm paper, neutral grey line, ONE electric-blue
            accent used only for CTAs, links, active states and indicators.
   Type: Space Grotesk (display), Inter (body), JetBrains Mono (data/eyebrow)
   ========================================================================== */

:root{
  /* Surfaces */
  --bg: #FAFAF8;
  --surface: #FFFFFF;
  --surface-2: #F1F1EC;
  --surface-dark: #0B0D12;
  --surface-dark-2: #15181F;

  /* Text */
  --text: #12151A;
  --text-muted: #5B5F6B;
  --text-on-dark: #F4F5F7;
  --text-muted-on-dark: #9DA2AE;

  /* Structure */
  --border: #E2E1DA;
  --border-on-dark: rgba(244,245,247,0.14);

  /* The one accent */
  --accent: #2F5CFF;
  --accent-strong: #1E42D6;
  --accent-soft: rgba(47,92,255,0.08);
  --accent-soft-2: rgba(47,92,255,0.16);
  --accent-on-dark-soft: rgba(101,138,255,0.16);

  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  --radius: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(18,21,26,0.07);
  --shadow-md: 0 14px 34px rgba(18,21,26,0.10);

  --container: 1240px;
  --nav-h: 76px;
  --section-spacing: clamp(64px, 9vw, 128px);
  --section-spacing-tight: clamp(40px, 5.5vw, 76px);
  --gutter: 24px;
}

*, *::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; scroll-behavior: auto !important; }
}

body{
  margin:0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.7;
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration: none; }
ul, ol{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; }
svg{ display:block; }

h1,h2,h3,h4{
  font-family: var(--font-display);
  color: var(--text);
  line-height: 1.12;
  margin: 0 0 0.6em 0;
  letter-spacing: -0.01em;
}
h1{ font-size: clamp(2.25rem, 1.7rem + 2.6vw, 3.4rem); font-weight: 600; }
h2{ font-size: clamp(1.9rem, 1.4rem + 2.1vw, 3rem); font-weight: 600; }
h3{ font-size: 1.28rem; font-weight: 600; }
p{ margin: 0 0 1em 0; color: var(--text-muted); }

/* Homepage hero display scale — distinct from inner-page h1 */
.display-1{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.05;
  color: var(--text);
  font-size: clamp(2rem, 1.5rem + 2.6vw, 3.6rem);
  margin: 0 0 0.5em 0;
}

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.grid-12{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
}
@media (max-width: 900px){
  .grid-12{ grid-template-columns: repeat(4, 1fr); }
}

.section{ padding: var(--section-spacing) 0; }
.section--tight{ padding: var(--section-spacing-tight) 0; }
.section--alt{ background: var(--surface-2); }
.section--dark{ background: var(--surface-dark); color: var(--text-on-dark); }
.section--dark p{ color: var(--text-muted-on-dark); }
.section--dark h2, .section--dark h3{ color: var(--text-on-dark); }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-weight: 500;
}
.eyebrow::before{
  content:"";
  width: 6px; height: 6px;
  border-radius: 1px;
  background: var(--accent);
}
.section--dark .eyebrow{ color: #7C97FF; }

/* Technical micro-labels (SYS/001, BUILD/04, STATUS/ACTIVE …) */
.meta-tag{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.meta-tag::before{ content:"◆"; font-size: 0.55em; color: var(--accent); }
.section--dark .meta-tag{ color: var(--text-muted-on-dark); }

.section-head{
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head p{ font-size: 1.05rem; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn svg{ width:16px; height:16px; transition: transform .18s ease; }
.btn-primary{
  background: var(--accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover{ background: var(--accent-strong); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-ghost{
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn:hover svg{ transform: translateX(3px); }
/* Any ghost button sitting on a dark surface (CTA band, dark sections) —
   scoped to every dark-surface container so this can never silently regress
   to dark-on-dark text again. */
.section--dark .btn-ghost,
.cta-band .btn-ghost,
.on-dark .btn-ghost{ color: var(--text-on-dark); border-color: var(--border-on-dark); }
.section--dark .btn-ghost:hover,
.cta-band .btn-ghost:hover,
.on-dark .btn-ghost:hover{ border-color: var(--text-on-dark); color: var(--text-on-dark); }
.btn-block{ width:100%; }
.btn[disabled]{ opacity:.6; cursor:not-allowed; transform:none !important; }

/* ---------- Header / Nav ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display:flex;
  align-items:center;
}
.site-header::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background: rgba(250,250,248,0.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transition: opacity .25s ease;
}
.site-header.is-scrolled::before{ opacity: 1; }
.site-header.is-scrolled{ box-shadow: 0 6px 20px rgba(18,21,26,0.05); }
.nav-inner{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 24px;
}
.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--text);
}
.brand-mark{ width: 30px; height: 30px; flex-shrink:0; }
.brand small{
  display:block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 1px;
}

.nav-links{
  display:flex;
  align-items:center;
  gap: 8px;
}
.nav-links a{
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 9px 14px;
  border-radius: var(--radius);
  transition: color .16s ease, background .16s ease;
}
.nav-links a:hover{ color: var(--accent); background: var(--accent-soft); }
.nav-links a.active{ color: var(--accent); }

.nav-cta{ display:flex; align-items:center; gap:14px; }

.nav-toggle{
  display:none;
  width: 42px; height: 42px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle span{
  position:relative;
  width: 18px; height: 2px;
  background: var(--text);
  display:block;
}
.nav-toggle span::before, .nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px; height:2px;
  background: var(--text);
  transition: transform .2s ease;
}
.nav-toggle span::before{ top:-6px; }
.nav-toggle span::after{ top:6px; }
.nav-toggle[aria-expanded="true"] span{ background: transparent; }
.nav-toggle[aria-expanded="true"] span::before{ transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after{ transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 900px){
  /* .site-header keeps NO backdrop-filter of its own (that lives on ::before),
     so this fixed panel's containing block stays the viewport, not the header. */
  .nav-links{
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
    gap: 4px;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease, visibility 0s linear .2s;
    border-top: 1px solid var(--border);
    overflow-y: auto;
  }
  .nav-links.open{ opacity: 1; transform: translateY(0); visibility: visible; pointer-events: auto; transition: opacity .2s ease, transform .2s ease; }
  .nav-links a{ padding: 16px 14px; font-size: 1.1rem; border-bottom: 1px solid var(--border); border-radius: 0; }
  .nav-cta .btn-ghost{ display:none; }
  .nav-toggle{ display:flex; }
}

/* ---------- Hero ---------- */
.hero{
  position: relative;
  overflow: hidden;
  padding: 40px 0 clamp(32px, 4.5vw, 56px);
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  align-items: center;
}
.hero-inner{
  position: relative;
  display:grid;
  grid-template-columns: 7fr 5fr;
  gap: 48px;
  align-items:center;
  width: 100%;
}
.hero-copy{ position:relative; z-index:2; }
.hero-copy .display-1{ max-width: 15ch; }
.hero-sub{
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 24px;
}
.hero-actions{ display:flex; gap: 14px; flex-wrap: wrap; margin-bottom: 28px; }
.hero-meta{
  display:flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  flex-wrap: wrap;
}
.hero-meta span{ display:flex; align-items:center; gap:8px; }
.hero-meta strong{ color: var(--text); font-weight: 600; }

.hero-visual{ position:relative; z-index:1; }
.hero-visual svg{ width:100%; height:auto; }

@media (max-width: 900px){
  /* Headline → copy → CTA must render before the diagram on mobile. */
  .hero{ min-height: 0; padding: 28px 0 32px; }
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-visual{ max-width: 220px; margin: 24px auto 0; }
  .hero-copy .display-1{ max-width: none; }
}

/* Engineering system diagram (hero) */
.sys-diagram{ color: var(--text-muted); }
.sys-diagram .frame{ stroke: var(--border); stroke-width: 1.2; fill:none; }
.sys-diagram .tick{ stroke: var(--border); stroke-width: 1.2; }
.sys-diagram .grid-dot{ fill: var(--border); }
.sys-diagram .base-line{ stroke: var(--border); stroke-width: 1.3; fill: none; }
.sys-diagram .pulse-line{
  stroke: var(--accent);
  stroke-width: 1.4;
  fill: none;
  opacity: 0.6;
  stroke-dasharray: 6 10;
  animation: dashmove 6s linear infinite;
}
.sys-diagram .node-dot{ fill: var(--surface); stroke: var(--accent); stroke-width: 1.6; }
.sys-diagram .node-core{ fill: var(--accent); }
.sys-diagram .node-label{
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  fill: var(--text-muted);
  text-transform: uppercase;
}
.sys-diagram .cap-label{
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  fill: var(--text-muted);
  text-transform: uppercase;
}
.sys-diagram .pulse-line:nth-child(2n){ animation-duration: 7.5s; animation-direction: reverse; }
.sys-diagram .pulse-line:nth-child(3n){ animation-duration: 9s; }
@keyframes dashmove{ to{ stroke-dashoffset: -160; } }
.sys-diagram .node-dot{ animation: nodepulse 3.4s ease-in-out infinite; transform-origin: center; }
.sys-diagram .node-dot:nth-child(odd){ animation-delay: .6s; }
@keyframes nodepulse{
  0%,100%{ opacity: .75; transform: scale(1); }
  50%{ opacity: 1; transform: scale(1.18); }
}

/* ---------- Page header (inner pages) ---------- */
.page-hero{
  padding: 56px 0 52px;
  border-bottom: 1px solid var(--border);
}
.page-hero h1{ max-width: 780px; }
.page-hero p{ max-width: 620px; font-size: 1.06rem; }
.breadcrumb{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.breadcrumb a{ color: var(--accent); }

/* ---------- Legacy grid/tag utilities (still used by forms, tags, footer) ---------- */
.grid{ display:grid; gap: 24px; }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
@media (max-width: 980px){ .grid-3{ grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px){ .grid-2, .grid-3{ grid-template-columns: 1fr; } }

.tag{
  display:inline-flex;
  align-items:center;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 5px 11px;
  margin-right: 6px;
  margin-bottom: 6px;
  font-weight: 500;
}
.tag--status{ color: #0F7A4D; background: #E3F6EC; }
.tag--soft{ color: var(--text-muted); background: var(--surface-2); }

/* ---------- Intro / "what we build" editorial row ---------- */
.intro-row .intro-label{ grid-column: span 3; display:flex; flex-direction:column; gap:10px; }
.intro-row .intro-copy{ grid-column: span 9; max-width: 62ch; }
@media (max-width: 900px){
  .intro-row .intro-label{ grid-column: span 4; flex-direction:row; align-items:center; gap:18px; margin-bottom: 24px; }
  .intro-row .intro-copy{ grid-column: span 4; }
}
.intro-copy p:first-child{ font-size: 1.1rem; color: var(--text); }

/* ---------- Problem section (large typographic statements) ---------- */
.problem-heading{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.1;
  font-size: clamp(2.1rem, 1.5rem + 2.8vw, 3.7rem);
  max-width: 16ch;
  margin: 0 0 var(--section-spacing-tight) 0;
}
.problem-list{ display:flex; flex-direction:column; }
.problem-item{
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.4rem, 1.1rem + 1.6vw, 2.3rem);
  color: var(--text-muted-on-dark);
  padding: 18px 0;
  border-bottom: 1px solid var(--border-on-dark);
  transition: color .3s ease, padding-left .3s ease;
}
.problem-item:first-child{ border-top: 1px solid var(--border-on-dark); }
html.js-enabled .problem-item{ opacity: .35; }
html.js-enabled .problem-item.in{ opacity: 1; color: var(--text-on-dark); padding-left: 12px; }
.problem-resolve{
  margin-top: var(--section-spacing-tight);
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.2rem + 1.6vw, 2.2rem);
  color: var(--accent-on-dark, #7C97FF);
  font-weight: 600;
}

/* ---------- Capabilities: editorial numbered list (replaces card grid) ---------- */
.capability-list-editorial{ border-top: 1px solid var(--border); }
.capability-row{
  display:grid;
  grid-template-columns: 90px 1fr auto;
  align-items: start;
  gap: 28px;
  padding: 34px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
  transition: padding-left .25s ease;
}
.capability-row::before{
  content:"";
  position:absolute;
  left: -1px; top:0; bottom:0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .3s ease;
}
.capability-row:hover{ padding-left: 14px; }
.capability-row:hover::before{ transform: scaleY(1); }
.capability-num{
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--text-muted);
  padding-top: 4px;
  transition: color .25s ease;
}
.capability-row:hover .capability-num{ color: var(--accent); }
.capability-body h3{ margin-bottom: 8px; font-size: 1.4rem; }
.capability-body p{ margin-bottom:0; max-width: 52ch; font-size: 1rem; }
.capability-link{
  display:inline-flex;
  align-items:center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
  white-space: nowrap;
  padding-top: 6px;
  transition: color .2s ease;
}
.capability-row:hover .capability-link{ color: var(--accent); }
.capability-link svg{ width:14px; height:14px; transition: transform .18s ease; }
.capability-row:hover .capability-link svg{ transform: translateX(3px); }

@media (max-width: 760px){
  .capability-row{ grid-template-columns: 44px 1fr; }
  .capability-link{ grid-column: 2; padding-top: 0; }
}

/* ---------- Why / Feature list ---------- */
.feature-row{
  display:flex;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.feature-row:last-child{ border-bottom:none; }
.feature-icon{
  flex-shrink:0;
  width: 40px; height:40px;
  border-radius: 8px;
  background: var(--accent-soft);
  color: var(--accent);
  display:flex; align-items:center; justify-content:center;
}
.feature-icon svg{ width:20px; height:20px; }
.feature-text h3{ font-size: 1.08rem; margin-bottom: 6px; }
.feature-text p{ font-size: 0.95rem; margin-bottom:0; }

/* ---------- CTA band ---------- */
.cta-band{
  border-radius: var(--radius-lg);
  background: var(--surface-dark);
  color: var(--text-on-dark);
  padding: 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 32px;
  flex-wrap: wrap;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute; inset:0;
  background:
    linear-gradient(90deg, transparent 0%, transparent 92%, rgba(47,92,255,0.5) 92%, rgba(47,92,255,0.5) 100%) 0 0/64px 100% no-repeat,
    radial-gradient(420px 220px at 100% 0%, rgba(47,92,255,0.16), transparent 65%);
  opacity: .5;
  pointer-events:none;
}
.cta-band > *{ position:relative; z-index:1; }
.cta-band h2{ color:#fff; margin-bottom: 8px; font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
.cta-band p{ color: var(--text-muted-on-dark); margin-bottom:0; max-width: 480px; }
.cta-band .actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ---------- Solutions page sections ---------- */
.solution-block{
  display:grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 56px;
  align-items:center;
  padding: var(--section-spacing-tight) 0;
  border-bottom: 1px solid var(--border);
}
.solution-block:last-of-type{ border-bottom:none; }
.solution-index{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display:block;
}
.solution-visual{
  display:flex;
  align-items:center;
  justify-content:center;
  aspect-ratio: 1 / 1;
  max-height: 320px;
  padding: 12px;
}
.solution-visual svg{ width: 100%; max-width: 240px; height:auto; color: var(--accent); margin: 0 auto; }
.capability-list{ margin-top: 20px; display:flex; flex-direction:column; gap: 10px; }
.capability-list li{
  display:flex;
  gap: 10px;
  align-items:flex-start;
  font-size: 0.96rem;
  color: var(--text-muted);
}
.capability-list svg{ width:18px; height:18px; flex-shrink:0; margin-top:2px; color: var(--accent); }

@media (max-width: 900px){
  .solution-block{ grid-template-columns: 1fr; align-items: start; }
  .solution-block .solution-visual{ order: -1; max-height: 220px; margin: 0 auto; }
}

/* ---------- Product showcase (replaces repeated card grid) ---------- */
.product-showcase{ border-top: 1px solid var(--border); }
.product-entry{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items:center;
  padding: var(--section-spacing-tight) 0;
  border-bottom: 1px solid var(--border);
}
.product-entry:nth-child(even) .product-visual{ order: 2; }
.product-copy .meta-row{ display:flex; gap:14px; align-items:center; flex-wrap:wrap; margin-bottom: 14px; }
.product-copy h3{ font-size: clamp(1.5rem, 1.2rem + 1vw, 2.1rem); margin-bottom: 14px; }
.product-copy p{ font-size: 1.02rem; max-width: 46ch; }
.product-list{ display:flex; flex-direction:column; gap:10px; margin: 18px 0 26px; }
.product-list li{
  font-size: 0.94rem;
  color: var(--text-muted);
  display:flex;
  gap:10px;
  align-items:flex-start;
}
.product-list svg{ width:15px; height:15px; margin-top:3px; color: var(--accent); flex-shrink:0; }

.product-visual{
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  min-height: 260px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
/* Lightweight abstract UI mock built from the product's real functionality */
.ui-mock{ background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow:hidden; }
.ui-mock-bar{ display:flex; align-items:center; gap:6px; padding:10px 14px; border-bottom:1px solid var(--border); }
.ui-mock-dot{ width:7px; height:7px; border-radius:50%; background: var(--border); }
.ui-mock-title{ margin-left:6px; font-family: var(--font-mono); font-size:.68rem; letter-spacing:.06em; text-transform:uppercase; color: var(--text-muted); }
.ui-mock-body{ padding: 16px; display:flex; flex-direction:column; gap:10px; }
.ui-mock-row{ display:flex; align-items:center; gap:10px; }
.ui-mock-bar-chart{ flex:1; height:8px; border-radius:4px; background: var(--border); position:relative; overflow:hidden; }
.ui-mock-bar-chart > span{ position:absolute; inset:0; background: var(--accent); border-radius:4px; }
.ui-mock-label{ font-family: var(--font-mono); font-size:.68rem; color: var(--text-muted); width:74px; flex-shrink:0; }
.ui-mock-value{ font-family: var(--font-mono); font-size:.68rem; color: var(--text); width:34px; text-align:right; flex-shrink:0; }
.ui-mock-tablecell{ height:22px; border-radius:4px; background: var(--surface-2); }
.ui-mock-badge{ display:inline-flex; align-items:center; gap:6px; font-family: var(--font-mono); font-size:.62rem; letter-spacing:.08em; text-transform:uppercase; color: #0F7A4D; }
.ui-mock-badge::before{ content:""; width:6px; height:6px; border-radius:50%; background:#1EA85C; }

@media (max-width: 900px){
  .product-entry{ grid-template-columns: 1fr; }
  .product-entry:nth-child(even) .product-visual{ order: -1; }
  .product-entry .product-visual{ order: -1; }
}

/* ---------- Process (horizontal desktop / vertical mobile) ---------- */
.process-rail{ position:relative; }
.process-rail-line{
  position:absolute;
  left:0; right:0; top: 27px;
  height:1px;
  background: var(--border);
}
.process-rail-line > span{
  display:block; height:100%; width:0%;
  background: var(--accent);
  transition: width 1s ease;
}
.process-rail.in .process-rail-line > span{ width: 100%; }
.process-steps{
  display:grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  position:relative;
}
.process-step{ text-align:left; }
.process-num{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  width: 54px; height: 54px;
  display:flex; align-items:center; justify-content:center;
  font-weight: 600;
  margin-bottom: 16px;
}
.process-step h3{ font-size: 1.02rem; margin-bottom: 6px; }
.process-step p{ font-size: 0.92rem; margin-bottom:0; }

@media (max-width: 760px){
  .process-rail-line{ display:none; }
  .process-steps{ grid-template-columns: 1fr; gap: 0; }
  .process-step{ display:grid; grid-template-columns: 54px 1fr; gap:16px; padding: 18px 0; border-bottom:1px solid var(--border); }
  .process-step:last-child{ border-bottom:none; }
  .process-num{ margin-bottom:0; }
}

/* ---------- Legacy process list (about page) ---------- */
.process-list{ display:flex; flex-direction:column; }
.process-item{
  display:grid;
  grid-template-columns: 56px 1fr;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.process-item:last-child{ border-bottom:none; }
.process-item .process-num{ height:44px; width:44px; margin-bottom:0; border-radius:10px; }
.process-item h3{ font-size: 1.02rem; margin-bottom: 4px; }
.process-item p{ font-size: 0.94rem; margin-bottom:0; }

.principles-list{ display:flex; flex-direction:column; gap: 16px; margin-top: 8px; }
.principle{
  display:flex; gap:12px;
  padding: 16px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.principle svg{ width:20px; height:20px; color: var(--accent); flex-shrink:0; margin-top:2px; }
.principle strong{ display:block; margin-bottom:2px; font-size:0.98rem; }
.principle span{ font-size: 0.9rem; color: var(--text-muted); }

.about-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items:start; }
@media (max-width: 900px){ .about-grid{ grid-template-columns: 1fr; } }

/* ---------- Contact page ---------- */
.contact-grid{
  display:grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items:start;
}
@media (max-width: 900px){ .contact-grid{ grid-template-columns: 1fr; } }

.contact-info-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
}
.contact-detail{
  display:flex;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.contact-detail:last-child{ border-bottom:none; }
.contact-detail .detail-icon{
  width: 40px; height: 40px; border-radius: 8px;
  background: var(--accent-soft); color: var(--accent);
  display:flex; align-items:center; justify-content:center; flex-shrink:0;
}
.contact-detail .detail-icon svg{ width:19px; height:19px; }
.contact-detail h3{ font-size: 0.98rem; margin-bottom: 2px; }
.contact-detail p{ font-size: 0.92rem; margin-bottom:0; }

.form-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
}
.form-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px){ .form-row{ grid-template-columns: 1fr; } }
.field{ margin-bottom: 20px; }
.field label{
  display:block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.field input, .field textarea, .field select{
  width: 100%;
  padding: 13px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color .16s ease, background .16s ease;
}
.field input:focus, .field textarea:focus, .field select:focus{
  outline: none;
  border-color: var(--accent);
  background: var(--surface);
}
.field textarea{ resize: vertical; min-height: 130px; }
.form-note{ font-size: 0.82rem; color: var(--text-muted); margin-top: 14px; }
.form-status{
  margin-top: 16px;
  font-size: 0.9rem;
  font-weight: 600;
  display:none;
}
.form-status.show{ display:block; }
.form-status.success{ color: #0F7A4D; }

/* ---------- Footer ---------- */
.site-footer{
  background: var(--surface-dark);
  color: var(--text-muted-on-dark);
  padding: 64px 0 28px;
}
.footer-top{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-on-dark);
}
@media (max-width: 800px){
  .footer-top{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px){
  .footer-top{ grid-template-columns: 1fr; }
}
.footer-brand .brand{ color:#fff; margin-bottom: 12px; }
.footer-brand p{ color: var(--text-muted-on-dark); font-size: 0.92rem; max-width: 320px; }
.footer-col h4{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted-on-dark);
  margin-bottom: 16px;
  font-weight: 500;
}
.footer-col ul{ display:flex; flex-direction:column; gap: 11px; }
.footer-col a{ font-size: 0.92rem; color: #C7CAD3; transition: color .15s ease; }
.footer-col a:hover{ color: #fff; }
.footer-col li p{ margin: 0; font-size: 0.92rem; color: #C7CAD3; }
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-top: 24px;
  font-size: 0.82rem;
  color: #767B87;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- Reveal on scroll ----------
   Without JS: content is fully visible (opacity:1) — nothing here can hide
   it permanently. Only once js-enabled is set on <html> does the fade-in
   staging apply, and only IntersectionObserver ever adds `.in`. */
.reveal{ opacity: 1; transform: none; }
html.js-enabled .reveal{ opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
html.js-enabled .reveal.in{ opacity: 1; transform: translateY(0); }

/* ---------- Misc ---------- */
.center-actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }
.mt-lg{ margin-top: 56px; }
.text-center{ text-align:center; }

.skip-link{
  position:absolute; left:-999px; top:0;
  background: var(--accent); color:#fff;
  padding:10px 16px; border-radius:8px; z-index:200;
}
.skip-link:focus{ left: 16px !important; top: 12px !important; }

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

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