/* ==========================================================================
   XDMicrobotics — Design System v3 "Signal / Charcoal"
   Premium engineering identity: charcoal surfaces, signal-orange accent.
     Charcoal #0D0F14   Signal Orange #FF6A2B
   Dark is the native theme; light is an explicit opt-out via the toggle.
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  /* Brand */
  --navy-950: #0a0b0d;
  --navy-900: #0d0f14;   /* primary charcoal background */
  --navy-800: #15171d;
  --navy-700: #1c1f26;
  --navy-600: #262a32;
  --navy-500: #3a3f49;
  --navy-400: #545a66;

  --orange-600: #c9501e;
  --orange-500: #ff6a2b;  /* signal orange — primary accent */
  --orange-400: #ff8a54;
  --orange-300: #ffab82;
  --orange-200: #ffd2b8;

  /* Neutrals (dark-first, true-neutral charcoal scale) */
  --ink:       #0a0a0b;
  --slate-950: #111317;
  --slate-900: #15171c;
  --slate-800: #1a1d22;
  --slate-700: #23262c;
  --slate-500: #6e7680;
  --slate-400: #9199a3;
  --slate-300: #c6cad0;
  --slate-200: #e7e8ea;
  --slate-100: #f4f4f5;
  --paper:     #ffffff;

  /* Semantic — DARK is the default, native identity */
  --bg:            var(--slate-950);
  --bg-void:       var(--navy-950);
  --bg-alt:        var(--slate-900);
  --bg-elevated:   color-mix(in srgb, var(--slate-800) 72%, transparent);
  --bg-solid:      var(--slate-800);
  --text:          #f3f4f5;
  --text-muted:    #a8adb6;
  --text-subtle:   #71757d;
  --border:        #23262c;
  --border-strong: #343841;
  --accent:        var(--orange-500);
  --accent-hover:  var(--orange-400);
  --brand:         #4d5a73;
  --shadow-color:  220 10% 2%;
  --grid-line:     rgb(255 255 255 / .05);
  --grid-line-strong: rgb(255 255 255 / .09);
  --glow-accent:   0 0 0 1px color-mix(in srgb, var(--accent) 45%, transparent),
                   0 0 24px color-mix(in srgb, var(--accent) 28%, transparent);
  --glow-brand:    0 0 0 1px color-mix(in srgb, var(--brand) 40%, transparent),
                   0 0 24px color-mix(in srgb, var(--brand) 22%, transparent);

  /* Brand gradients — same two-tone split as the logo mark */
  --brand-gradient:  linear-gradient(135deg, var(--navy-800), var(--navy-600));
  --accent-gradient: linear-gradient(135deg, var(--orange-400), var(--orange-600));
  --rail-gradient:   linear-gradient(90deg, var(--brand) 0%, var(--accent) 58%, var(--orange-300) 100%);

  /* Elevation (dark-tuned: more spread, less opacity) */
  --shadow-sm: 0 1px 2px hsl(var(--shadow-color) / .6),
               0 1px 3px hsl(var(--shadow-color) / .4);
  --shadow-md: 0 6px 18px hsl(var(--shadow-color) / .55),
               0 2px 6px hsl(var(--shadow-color) / .4);
  --shadow-lg: 0 16px 40px hsl(var(--shadow-color) / .6),
               0 4px 10px hsl(var(--shadow-color) / .4);
  --shadow-xl: 0 30px 72px hsl(var(--shadow-color) / .68);

  /* Type */
  --font-display: 'Sora', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* Rhythm */
  --container: 1240px;
  --gutter: clamp(20px, 5vw, 56px);
  --section-y: clamp(72px, 9vw, 132px);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --ease: cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* Light — explicit opt-out via the toggle. No OS auto-switch: this brand stays dark by default. */
:root[data-theme="light"] {
  --bg:            var(--paper);
  --bg-void:       var(--slate-100);
  --bg-alt:        #f6f6f7;
  --bg-elevated:   #ffffff;
  --bg-solid:      #ffffff;
  --text:          var(--ink);
  --text-muted:    #595d65;
  --text-subtle:   #868a92;
  --border:        #e4e5e8;
  --border-strong: #cfd1d6;
  --brand:         var(--navy-800);
  --shadow-color:  220 10% 15%;
  --grid-line:     rgb(10 12 16 / .05);
  --grid-line-strong: rgb(10 12 16 / .09);
  --glow-accent:   0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent),
                   0 10px 26px color-mix(in srgb, var(--accent) 16%, transparent);
  --glow-brand:    0 0 0 1px color-mix(in srgb, var(--brand) 25%, transparent),
                   0 10px 26px color-mix(in srgb, var(--brand) 12%, transparent);
  --shadow-sm: 0 1px 2px hsl(var(--shadow-color) / .06), 0 1px 3px hsl(var(--shadow-color) / .05);
  --shadow-md: 0 4px 12px hsl(var(--shadow-color) / .07), 0 2px 4px hsl(var(--shadow-color) / .04);
  --shadow-lg: 0 12px 32px hsl(var(--shadow-color) / .10), 0 4px 8px hsl(var(--shadow-color) / .05);
  --shadow-xl: 0 24px 64px hsl(var(--shadow-color) / .14);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 88px; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}
body {
  position: relative;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg, video { display: block; max-width: 100%; }
img, video { height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
ul { list-style: none; padding: 0; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}
::selection { background: var(--orange-500); color: #fff; }
code, .mono { font-family: var(--font-mono); }

/* Fixed engineering-grid backdrop + brand glow blobs, sits behind every page.
   Pure decoration: aria-hidden, never intercepts input, dims under reduced motion. */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -10;
  pointer-events: none;
  background-color: var(--bg-void);
  background-image:
    radial-gradient(60% 50% at 85% -8%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
    radial-gradient(55% 45% at -10% 15%, color-mix(in srgb, var(--brand) 16%, transparent), transparent 70%),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
  background-position: 0 0, 0 0, 0 0, 0 0;
}
.bg-grid::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 0%, var(--bg) 100%);
  opacity: .9;
}
:root[data-theme="light"] .bg-grid { opacity: .6; }

/* ---------- 3. Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -.025em;
  text-wrap: balance;
}
h1 { font-size: clamp(2.6rem, 6.2vw, 4.6rem); font-weight: 800; letter-spacing: -.03em; }
h2 { font-size: clamp(2rem, 4.2vw, 3.1rem); }
h3 { font-size: clamp(1.15rem, 1.9vw, 1.4rem); letter-spacing: -.018em; }
h4 { font-size: 1.02rem; letter-spacing: -.01em; }
p  { text-wrap: pretty; }

/* Eyebrow mark echoes the "<" notch in the logo between the X and D, with a live-status pulse */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
}
.eyebrow::before {
  content: "";
  width: 9px; height: 9px;
  border-left: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  flex-shrink: 0;
}
.status-dot {
  position: relative;
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}
.status-dot::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: currentColor;
  opacity: .5;
  animation: statusPulse 2s infinite var(--ease-out);
}
@keyframes statusPulse {
  0%   { transform: scale(1);   opacity: .5; }
  70%  { transform: scale(2.4); opacity: 0; }
  100% { transform: scale(2.4); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) { .status-dot::after { animation: none; display: none; } }

.lede {
  font-size: clamp(1.02rem, 1.5vw, 1.18rem);
  color: var(--text-muted);
  max-width: 62ch;
}

/* ---------- 4. Layout ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: var(--section-y); position: relative; }
.section--alt {
  background:
    radial-gradient(50% 60% at 100% 0%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 70%),
    radial-gradient(45% 55% at 0% 100%, color-mix(in srgb, var(--brand) 9%, transparent), transparent 70%),
    var(--bg-alt);
  border-block: 1px solid var(--border);
}
.section-head { max-width: 70ch; margin-bottom: clamp(40px, 5vw, 68px); }
.section-head .eyebrow { margin-bottom: 1rem; }
.section-head h2 { margin-bottom: 1rem; }

.grid { display: grid; gap: clamp(18px, 2.2vw, 28px); align-items: stretch; }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }

/* ---------- 5. Buttons ---------- */
.btn {
  --btn-bg: var(--accent);
  --btn-fg: #fff;
  --cut: 10px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .92rem 1.7rem;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .94rem;
  letter-spacing: -.005em;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
              background .2s var(--ease), border-color .2s var(--ease);
  box-shadow: 0 4px 18px rgb(255 106 43 / .32);
}
/* Diagonal shine sweep on hover — premium, used sparingly */
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(115deg, transparent 30%, rgb(255 255 255 / .25) 48%, transparent 66%);
  transform: translateX(-120%);
  transition: transform .6s var(--ease-out);
}
.btn:hover::after { transform: translateX(120%); }
.btn:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 10px 26px rgb(255 106 43 / .4); }
.btn:active { transform: translateY(0); }
.btn svg { width: 17px; height: 17px; transition: transform .25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
@media (prefers-reduced-motion: reduce) {
  .btn::after { display: none; }
}

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--text);
  border-color: var(--border-strong);
  box-shadow: none;
}
.btn--ghost:hover {
  background: color-mix(in srgb, var(--text) 8%, transparent);
  border-color: var(--text-muted);
  box-shadow: none;
}
.btn--on-dark {
  --btn-bg: rgb(255 255 255 / .07);
  --btn-fg: #fff;
  border-color: rgb(255 255 255 / .22);
  backdrop-filter: blur(10px);
  box-shadow: none;
}
.btn--on-dark:hover { background: rgb(255 255 255 / .14); border-color: rgb(255 255 255 / .45); box-shadow: none; }
.btn--lg { padding: 1.05rem 2.1rem; font-size: 1rem; }

/* ---------- 6. Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background .3s var(--ease), box-shadow .3s var(--ease),
              border-color .3s var(--ease), backdrop-filter .3s var(--ease);
  border-bottom: 1px solid transparent;
  /* Keep the logo/nav legible over bright hero footage even before the scroll scrim kicks in */
  background: linear-gradient(180deg, rgb(10 11 13 / .6) 0%, transparent 100%);
}
.header.is-stuck {
  background: color-mix(in srgb, var(--bg-void) 78%, transparent);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 80px;
}
.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo img { height: 42px; width: auto; transition: transform .3s var(--ease); filter: brightness(0) invert(1) drop-shadow(0 1px 4px rgb(0 0 0 / .55)); }
.logo:hover img { transform: scale(1.04); }
/* Logo artwork is navy-on-transparent. The header always starts over a dark
   hero/photo band in BOTH themes, so it stays inverted to white by default —
   only once the header goes solid-light on scroll (light theme) does the
   true navy/orange artwork have a light background to sit on. */
:root[data-theme="light"] .header.is-stuck .logo img,
:root[data-theme="light"] .header--solid .logo img { filter: none; }

.nav { display: flex; align-items: center; gap: .3rem; }
.nav a {
  position: relative;
  padding: .55rem .95rem;
  font-size: .92rem;
  font-weight: 500;
  color: var(--nav-fg, var(--text-muted));
  border-radius: var(--radius-sm);
  transition: color .2s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: .95rem; right: .95rem; bottom: .3rem;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
  box-shadow: 0 0 8px color-mix(in srgb, var(--accent) 70%, transparent);
}
.nav a:hover, .nav a.is-active { color: var(--nav-fg-strong, var(--text)); }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.header { --nav-fg: var(--text-muted); --nav-fg-strong: var(--text); }

.header__actions { display: flex; align-items: center; gap: .6rem; }
.theme-toggle {
  display: grid;
  place-items: center;
  width: 40px; height: 40px;
  background: transparent;
  color: var(--nav-fg, var(--text-muted));
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle svg { width: 18px; height: 18px; }
/* Native theme is dark: sun shown by default (click → go light). Light theme shows the moon. */
.theme-toggle .icon-sun { display: block; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  place-items: center;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--nav-fg-strong, var(--text));
}
.nav-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: currentColor;
  border-radius: 2px;
  position: relative;
  transition: background .2s var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0; width: 18px; height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .3s var(--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); }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative;
  min-height: min(92vh, 860px);
  display: flex;
  align-items: center;
  padding-block: 150px 90px;
  background: var(--navy-950);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: -3;
}
.hero__media video,
.hero__media img {
  width: 100%; height: 100%;
  object-fit: cover;
}
/* Tint the footage to brand navy and keep text contrast high */
.hero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg,
      rgb(10 11 13 / .97) 0%,
      rgb(13 15 20 / .92) 42%,
      rgb(13 15 20 / .78) 72%,
      rgb(13 15 20 / .66) 100%),
    radial-gradient(60% 80% at 85% 20%, rgb(255 106 43 / .18), transparent 70%);
}
/* Fine engineering grid overlay */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgb(255 255 255 / .055) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / .055) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 90% at 20% 40%, #000 20%, transparent 80%);
}
/* Scanline sweep — a slow horizontal signal pass, purely decorative */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(180deg, transparent 0%, rgb(255 171 130 / .06) 50%, transparent 100%);
  background-size: 100% 220px;
  animation: scanSweep 9s linear infinite;
  pointer-events: none;
}
@keyframes scanSweep {
  0%   { background-position: 0 -220px; }
  100% { background-position: 0 120vh; }
}
@media (prefers-reduced-motion: reduce) { .hero::after { display: none; } }

.hero__inner { position: relative; max-width: 54rem; }
.hero .status-chip {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: 1.6rem;
}
.hero .eyebrow {
  color: var(--orange-300);
  background: rgb(255 106 43 / .12);
  border: 1px solid rgb(255 106 43 / .3);
  padding: .45rem 1rem .45rem .85rem;
  border-radius: var(--radius-pill);
}
.hero h1 { margin-bottom: 1.4rem; color: #fff; }
.hero h1 .accent {
  color: var(--orange-400);
  position: relative;
  white-space: nowrap;
}
.hero__lede {
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  color: rgb(255 255 255 / .8);
  max-width: 50ch;
  margin-bottom: 2.4rem;
}
.hero__cta { display: flex; flex-wrap: wrap; gap: .85rem; }
.hero__trust {
  margin-top: 1.8rem;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .04em;
  color: rgb(255 255 255 / .55);
}

/* Metric strip — systems-readout bar */
.metrics {
  position: relative;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.metrics__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
}
.metric {
  position: relative;
  padding: clamp(26px, 3.4vw, 42px) clamp(16px, 2vw, 30px);
  border-right: 1px solid var(--border);
  text-align: center;
}
.metric:last-child { border-right: none; }
.metric__value {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--accent);
  line-height: 1.1;
}
.metric__label {
  margin-top: .4rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

/* ---------- 8. Cards (glass + HUD corner brackets) ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 2.6vw, 34px);
  background: var(--bg-elevated);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease-out), box-shadow .4s var(--ease-out),
              border-color .3s var(--ease);
  overflow: hidden;
  height: 100%;
}
/* Accent rail: always faintly present, fills in on hover — brand-to-orange, same split as the logo */
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--rail-gradient);
  transform: scaleX(.14);
  transform-origin: left;
  opacity: .5;
  transition: transform .5s var(--ease-out), opacity .4s var(--ease);
}
/* Soft corner glow, revealed on hover */
.card::after {
  content: "";
  position: absolute;
  top: -40%; right: -30%;
  width: 70%; aspect-ratio: 1;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 18%, transparent), transparent 68%);
  opacity: 0;
  transition: opacity .45s var(--ease);
  pointer-events: none;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg), var(--glow-accent);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
}
.card:hover::before { transform: scaleX(1); opacity: 1; }
.card:hover::after  { opacity: 1; }

/* HUD corner brackets — applied to the main surface components */
.card, .panel, .project, .process__content, .contact-card, .brand-chip, .form {
  --hud-sz: 14px;
}
.card, .panel, .process__content, .contact-card, .form {
  position: relative;
}
.card::marker { content: none; }
.hud-corners, .card, .panel, .process__content, .contact-card, .form {
  isolation: isolate;
}
.card > .hud-tl, .card > .hud-br { display: none; } /* placeholder guard, brackets are pseudo-driven below */

/* Header row: icon left, index right — fixed height keeps titles aligned */
.card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.card__num {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--text-subtle);
  transition: color .3s var(--ease);
}
.card__num::before { content: "["; opacity: .55; }
.card__num::after { content: "]"; opacity: .55; }
.card:hover .card__num { color: var(--accent); }
.card__icon {
  display: grid;
  place-items: center;
  width: 54px; height: 54px;
  flex-shrink: 0;
  margin: 0;
  background: color-mix(in srgb, var(--brand) 14%, transparent);
  color: var(--brand);
  border: 1px solid color-mix(in srgb, var(--brand) 32%, transparent);
  border-radius: var(--radius);
  transition: background .35s var(--ease), color .35s var(--ease),
              transform .4s var(--ease-out), border-color .3s var(--ease),
              box-shadow .35s var(--ease);
}
.card:hover .card__icon {
  background: var(--accent-gradient);
  border-color: transparent;
  color: #fff;
  transform: scale(1.06) rotate(-4deg);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--accent) 50%, transparent);
}
.card__icon svg { width: 25px; height: 25px; }

/* Title block reserves two lines so one- and two-line titles still align */
.card h3 {
  margin-bottom: .7rem;
  text-wrap: balance;
}
.card p {
  color: var(--text-muted);
  font-size: .95rem;
  margin-bottom: 1.4rem;
  flex: 1 0 auto;
}
/* Tags pinned to the bottom, separated by a hairline */
.card .tags {
  margin-top: auto;
  padding-top: 1.1rem;
  border-top: 1px solid var(--border);
}

.tags { margin-top: auto; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.tag {
  padding: .26rem .7rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
}
.card:hover .tag { border-color: var(--border-strong); }

/* ---------- 9. Company / pillars ---------- */
.pillar { position: relative; padding-left: 0; }
.pillar__step {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--accent);
  margin-bottom: .9rem;
}
.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: clamp(22px, 3vw, 44px);
  align-items: start;
}
.checklist { display: grid; gap: .85rem; }
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  font-size: .95rem;
  color: var(--text-muted);
}
.checklist svg {
  flex-shrink: 0;
  width: 20px; height: 20px;
  margin-top: 1px;
  color: var(--accent);
}
.panel {
  padding: clamp(26px, 3vw, 38px);
  background: var(--bg-elevated);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.panel:hover { border-color: color-mix(in srgb, var(--brand) 40%, var(--border)); box-shadow: var(--shadow-md), var(--glow-brand); }
.panel h3 { margin-bottom: 1.4rem; }

.figure {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}
.figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, color-mix(in srgb, var(--brand) 16%, transparent), transparent 55%);
  mix-blend-mode: overlay;
  pointer-events: none;
}
.figure img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.figure--tall img { aspect-ratio: 4/5; }

/* ---------- 10. Brand marquee ---------- */
.marquee {
  position: relative;
  overflow: hidden;
  padding-block: 8px;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track {
  display: flex;
  gap: 1rem;
  width: max-content;
  animation: marquee 42s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

.brand-chip {
  display: flex;
  align-items: center;
  gap: .95rem;
  flex-shrink: 0;
  width: 258px;
  padding: 1rem 1.3rem;
  background: var(--bg-elevated);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .3s var(--ease), transform .3s var(--ease), box-shadow .3s var(--ease);
}
.brand-chip:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md), var(--glow-accent);
}
.brand-chip img {
  width: 44px; height: 32px;
  object-fit: contain;
  flex-shrink: 0;
  filter: grayscale(1) brightness(1.6);
  opacity: .62;
  transition: filter .3s var(--ease), opacity .3s var(--ease);
}
:root[data-theme="light"] .brand-chip img { filter: grayscale(1); opacity: .72; }
.brand-chip:hover img { filter: grayscale(0) brightness(1); opacity: 1; }
.brand-chip__name {
  font-family: var(--font-display);
  font-size: .86rem;
  font-weight: 600;
  letter-spacing: -.01em;
}
.brand-chip__role {
  font-size: .74rem;
  color: var(--text-subtle);
  line-height: 1.35;
}

/* ---------- 11. Projects ---------- */
.project {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .45s var(--ease-out), box-shadow .45s var(--ease-out),
              border-color .3s var(--ease);
}
.project:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl), var(--glow-accent);
  border-color: var(--border-strong);
}
.project__visual {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--navy-950);
}
.project__visual img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .7s var(--ease-out);
}
.project:hover .project__visual img { transform: scale(1.04); }
.project__visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgb(10 11 13 / 0) 45%, rgb(10 11 13 / .55) 100%);
}
.project__badge {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 2;
  padding: .32rem .8rem;
  font-family: var(--font-mono);
  font-size: .66rem;
  font-weight: 600;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: #fff;
  background: rgb(255 106 43 / .92);
  border-radius: var(--radius-pill);
  backdrop-filter: blur(6px);
}
.project__body { padding: clamp(20px, 2.2vw, 28px); display: flex; flex-direction: column; flex: 1; }
.project__body h3 { margin-bottom: .55rem; }
.project__body p {
  color: var(--text-muted);
  font-size: .92rem;
  margin-bottom: 1.2rem;
  flex: 1 0 auto;
}
.project__body .tags {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* ---------- 12. Process timeline — circuit trace ---------- */
.process {
  display: grid;
  gap: 0;
  position: relative;
  max-width: 920px;
}
.process__item {
  position: relative;
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: clamp(18px, 2.4vw, 38px);
  padding: clamp(14px, 1.6vw, 20px) 0;
  align-items: start;
}
/* Vertical spine, drawn between the node markers — dashed circuit trace */
.process__item::before {
  content: "";
  position: absolute;
  left: 27px;
  top: 0; bottom: 0;
  width: 2px;
  background: repeating-linear-gradient(180deg, var(--border-strong) 0 6px, transparent 6px 12px);
}
.process__item:first-child::before { top: calc(clamp(14px, 1.6vw, 20px) + 28px); }
.process__item:last-child::before  { bottom: calc(100% - clamp(14px, 1.6vw, 20px) - 28px); }

/* Numbered node */
.process__num {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 56px; height: 56px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text-muted);
  background: var(--bg-solid);
  border: 2px solid var(--border);
  border-radius: 50%;
  line-height: 1;
  transition: color .35s var(--ease), border-color .35s var(--ease),
              background .35s var(--ease), transform .35s var(--ease-out), box-shadow .35s var(--ease);
}
.section--alt .process__num { background: var(--bg-alt); }
.process__item:hover .process__num {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
  transform: scale(1.06);
  box-shadow: var(--glow-accent);
}

/* Content card */
.process__content {
  padding: clamp(20px, 2.2vw, 28px) clamp(20px, 2.4vw, 30px);
  background: var(--bg-elevated);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease-out), box-shadow .4s var(--ease-out),
              border-color .3s var(--ease);
}
.process__item:hover .process__content {
  transform: translateX(4px);
  box-shadow: var(--shadow-md), var(--glow-accent);
  border-color: color-mix(in srgb, var(--accent) 38%, var(--border));
}
.process__content h3 { margin-bottom: .9rem; }
.process__content ul {
  display: grid;
  gap: .55rem;
}
.process__content li {
  position: relative;
  padding-left: 1.5rem;
  font-size: .93rem;
  color: var(--text-muted);
}
/* Check marks instead of plain dots */
.process__content li::before {
  content: "";
  position: absolute;
  left: 0; top: .42em;
  width: 9px; height: 5px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

@media (max-width: 680px) {
  .process__item { grid-template-columns: 46px 1fr; gap: 14px; }
  .process__item::before { left: 22px; }
  .process__num { width: 44px; height: 44px; font-size: .92rem; }
  .process__item:first-child::before { top: calc(clamp(14px, 1.6vw, 20px) + 22px); }
  .process__item:last-child::before  { bottom: calc(100% - clamp(14px, 1.6vw, 20px) - 22px); }
}

/* ---------- 13. HMI feature band ---------- */
.feature-band {
  position: relative;
  color: #fff;
  background: var(--navy-950);
  overflow: hidden;
  isolation: isolate;
}
.feature-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(70% 90% at 12% 18%, rgb(255 106 43 / .28), transparent 62%),
    radial-gradient(60% 80% at 92% 86%, rgb(38 54 127 / .85), transparent 60%),
    linear-gradient(rgb(255 255 255 / .04) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / .04) 1px, transparent 1px);
  background-size: auto, auto, 56px 56px, 56px 56px;
}
.feature-band h2, .feature-band h3 { color: #fff; }
.feature-band p { color: rgb(255 255 255 / .76); }
.feature-band .eyebrow { color: var(--orange-300); }
.feature-band .panel {
  background: rgb(255 255 255 / .05);
  border-color: rgb(255 255 255 / .14);
  backdrop-filter: blur(12px);
  box-shadow: none;
}
.feature-band .panel:hover { border-color: rgb(255 255 255 / .3); box-shadow: var(--glow-accent); }
.feature-band .checklist li { color: rgb(255 255 255 / .78); }
.feature-band .checklist svg { color: var(--orange-400); }
.feature-band .card__icon { background: rgb(255 255 255 / .1); color: var(--orange-300); }

/* ---------- 14. CTA ---------- */
.cta-band {
  position: relative;
  text-align: center;
  color: #fff;
  background: linear-gradient(135deg, var(--navy-950), var(--navy-700) 55%, var(--navy-600));
  overflow: hidden;
  isolation: isolate;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(50% 70% at 50% 0%, rgb(255 106 43 / .32), transparent 70%);
}
.cta-band__media {
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: .3;
}
.cta-band__media video { width: 100%; height: 100%; object-fit: cover; }
.cta-band h2 { color: #fff; margin-bottom: 1rem; }
.cta-band p { color: rgb(255 255 255 / .78); margin-inline: auto; margin-bottom: 2.2rem; max-width: 56ch; }
.cta-band .hero__cta { justify-content: center; }

/* ---------- 15. Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 56px);
  align-items: start;
}
.form {
  display: grid;
  gap: 1.05rem;
  padding: clamp(22px, 2.6vw, 30px);
  background: var(--bg-elevated);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.field { display: grid; gap: .45rem; }
.field label {
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: -.005em;
  color: var(--text);
}
.field label .req { color: var(--accent); }
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: .82rem 1rem;
  background: var(--bg-void);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .94rem;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
:root[data-theme="light"] .field input,
:root[data-theme="light"] .field select,
:root[data-theme="light"] .field textarea { background: var(--bg); }
.field textarea { min-height: 140px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--text-subtle); }
.field input[type="file"] { padding: .6rem 1rem; font-size: .88rem; color: var(--text-muted); cursor: pointer; }
.field input[type="file"]::file-selector-button,
.field input[type="file"]::-webkit-file-upload-button {
  padding: .5rem 1rem;
  margin-right: 1rem;
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 600;
  color: var(--text);
  background: var(--bg-alt);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .2s var(--ease), border-color .2s var(--ease);
}
.field input[type="file"]:hover::file-selector-button,
.field input[type="file"]:hover::-webkit-file-upload-button {
  background: color-mix(in srgb, var(--accent) 14%, var(--bg-alt));
  border-color: var(--accent);
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}
.field select { cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238d95ad' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .9rem center;
  background-size: 17px;
  padding-right: 2.6rem;
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.05rem; }
.form__note { font-size: .82rem; color: var(--text-subtle); }
.form__status {
  padding: .8rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  display: none;
}
.form__status.is-ok { display: block; background: color-mix(in srgb, #16a34a 16%, transparent); color: #4ade80; border: 1px solid color-mix(in srgb, #16a34a 38%, transparent); }
.form__status.is-err { display: block; background: color-mix(in srgb, #dc2626 16%, transparent); color: #f87171; border: 1px solid color-mix(in srgb, #dc2626 38%, transparent); }
:root[data-theme="light"] .form__status.is-ok { color: #15803d; }
:root[data-theme="light"] .form__status.is-err { color: #b91c1c; }

.contact-card {
  display: grid;
  gap: 1.5rem;
  padding: clamp(26px, 3vw, 36px);
  background: var(--navy-950);
  color: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid rgb(255 255 255 / .08);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.contact-card::before {
  content: "";
  position: absolute;
  inset: 0; z-index: -1;
  background:
    radial-gradient(70% 70% at 100% 0%, rgb(255 106 43 / .32), transparent 65%),
    linear-gradient(rgb(255 255 255 / .04) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / .04) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
}
.contact-card h3 { color: #fff; }
.contact-item { display: flex; gap: .95rem; align-items: flex-start; }
.contact-item svg {
  flex-shrink: 0;
  width: 20px; height: 20px;
  margin-top: 3px;
  color: var(--orange-400);
}
.contact-item__label {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgb(255 255 255 / .55);
  margin-bottom: .18rem;
}
.contact-item a, .contact-item span { color: #fff; font-size: .95rem; line-height: 1.5; }
.contact-item a { transition: color .2s var(--ease); }
.contact-item a:hover { color: var(--orange-300); }

/* ---------- 16. Footer ---------- */
.footer {
  position: relative;
  background: var(--navy-950);
  color: rgb(255 255 255 / .62);
  padding-block: clamp(52px, 6vw, 76px) 0;
  border-top: 1px solid rgb(255 255 255 / .08);
}
.footer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--rail-gradient);
  opacity: .7;
}
.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(auto-fit, minmax(min(150px, 100%), 1fr));
  gap: clamp(28px, 3.4vw, 56px);
  padding-bottom: clamp(36px, 4vw, 54px);
}
.footer__brand img { height: 44px; width: auto; filter: brightness(0) invert(1); margin-bottom: 1.1rem; }
.footer__brand p { font-size: .92rem; max-width: 36ch; }
.footer h3 {
  color: #fff;
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
}
.footer ul { display: grid; gap: .6rem; min-width: 0; }
.footer__grid > * { min-width: 0; }
.footer li, .footer li a { overflow-wrap: anywhere; }
.footer li a {
  font-size: .92rem;
  transition: color .2s var(--ease), padding-left .2s var(--ease);
}
.footer li a:hover { color: var(--orange-400); padding-left: 4px; }
.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.6rem;
  border-top: 1px solid rgb(255 255 255 / .1);
  font-size: .85rem;
}
.footer__legal { display: flex; gap: 1.2rem; }
.footer__legal a:hover { color: var(--orange-400); }


/* ---------- 17. Scroll reveal ---------- */
.reveal {
  opacity: 1;            /* fail-safe: visible unless JS opts in to animating */
  transform: none;
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
.js-reveal .reveal { opacity: 0; transform: translateY(22px); }
.js-reveal .reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  .marquee__track { animation: none; }
}

/* ---------- 18. Utilities ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: .8rem 1.2rem;
  background: var(--accent);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 19. Responsive ---------- */
@media (max-width: 980px) {
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .nav-toggle { display: grid; }
  .nav {
    position: fixed;
    inset: 80px 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem var(--gutter) 1.6rem;
    background: var(--bg-solid);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    clip-path: inset(0 0 100% 0);
    transition: clip-path .4s var(--ease-out);
  }
  .nav.is-open { clip-path: inset(0 0 0 0); }
  .header.has-open-nav,
  .header:has(.nav.is-open) {
    background: color-mix(in srgb, var(--bg-void) 90%, transparent);
    backdrop-filter: saturate(180%) blur(16px);
    border-bottom-color: var(--border);
  }
  .nav a {
    padding: .9rem .2rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--border);
  }
  .nav a::after { display: none; }
  .header__actions .btn { display: none; }
  .metric { border-right: none; border-bottom: 1px solid var(--border); }
  .process__item { grid-template-columns: 52px 1fr; }
  .hero { min-height: auto; padding-block: 130px 72px; }
}
@media (max-width: 560px) {
  .form__row { grid-template-columns: 1fr; }
  .hero__cta .btn { width: 100%; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
}

/* ---------- 20. Print ---------- */
@media print {
  .header,   body { color: #000; background: #fff; }
}

/* ==========================================================================
   21. Luna chat widget
   ========================================================================== */
.chat__launcher {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 120;
  display: grid;
  place-items: center;
  width: 58px; height: 58px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 10px 30px rgb(255 106 43 / .45), var(--shadow-lg);
  transition: transform .3s var(--ease), background .25s var(--ease);
}
.chat__launcher:hover { transform: translateY(-3px) scale(1.04); background: var(--accent-hover); }
.chat__launcher svg { width: 25px; height: 25px; transition: opacity .2s var(--ease), transform .3s var(--ease); }
.chat__ico-close { position: absolute; opacity: 0; transform: rotate(-90deg); }
.chat__launcher.is-active .chat__ico-open { opacity: 0; transform: rotate(90deg); }
.chat__launcher.is-active .chat__ico-close { opacity: 1; transform: rotate(0); }

/* Attention dot, hidden once opened */
.chat__dot {
  position: absolute;
  top: 3px; right: 3px;
  width: 13px; height: 13px;
  background: #22c55e;
  border: 2.5px solid var(--bg);
  border-radius: 50%;
}
.chat__dot::after {
  content: "";
  position: absolute;
  inset: -2.5px;
  border-radius: 50%;
  background: #22c55e;
  opacity: .55;
  animation: chatDotPulse 2.2s infinite var(--ease-out);
}
@keyframes chatDotPulse {
  0%   { transform: scale(1);   opacity: .55; }
  70%  { transform: scale(2.1); opacity: 0; }
  100% { transform: scale(2.1); opacity: 0; }
}
.chat__launcher.is-active .chat__dot { display: none; }
@media (prefers-reduced-motion: reduce) {
  .chat__dot::after { animation: none; display: none; }
}


.chat__panel {
  position: fixed;
  right: 22px; bottom: 92px;
  z-index: 119;
  display: flex;
  flex-direction: column;
  width: min(392px, calc(100vw - 44px));
  height: min(520px, calc(100vh - 150px));
  background: var(--bg-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  opacity: 0;
  transform: translateY(14px) scale(.98);
  transform-origin: bottom right;
  transition: opacity .24s var(--ease-out), transform .24s var(--ease-out);
}
.chat__panel.is-open { opacity: 1; transform: none; }

.chat__head {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .95rem 1.1rem;
  background: var(--brand-gradient);
  color: #fff;
  flex-shrink: 0;
}
.chat__avatar {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  flex-shrink: 0;
  background: var(--accent-gradient);
  border-radius: 50%;
  color: #fff;
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: -.02em;
  box-shadow: 0 0 0 3px rgb(255 255 255 / .1), inset 0 -2px 4px rgb(0 0 0 / .15);
}
.chat__ident { flex: 1; min-width: 0; line-height: 1.3; }
.chat__ident strong {
  display: block;
  font-family: var(--font-display);
  font-size: .98rem;
  letter-spacing: -.01em;
}
.chat__ident span {
  display: block;
  font-size: .74rem;
  color: rgb(255 255 255 / .62);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chat__x {
  display: grid;
  place-items: center;
  width: 32px; height: 32px;
  flex-shrink: 0;
  background: transparent;
  color: rgb(255 255 255 / .7);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.chat__x:hover { background: rgb(255 255 255 / .12); color: #fff; }
.chat__x svg { width: 17px; height: 17px; }

.chat__log {
  flex: 1;
  overflow-y: auto;
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: .7rem;
  background: var(--bg-alt);
  scrollbar-width: thin;
}
.chat__log::-webkit-scrollbar { width: 7px; }
.chat__log::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }

.chat__msg { display: flex; }
.chat__msg--user { justify-content: flex-end; }
.chat__bubble {
  max-width: 85%;
  padding: .68rem .9rem;
  font-size: .89rem;
  line-height: 1.55;
  border-radius: 14px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.chat__msg--bot .chat__bubble {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}
.chat__msg--user .chat__bubble {
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.chat__typing { display: flex; gap: 4px; align-items: center; padding: .85rem .9rem; }
.chat__typing span {
  width: 7px; height: 7px;
  background: var(--text-subtle);
  border-radius: 50%;
  animation: chatBlink 1.3s infinite ease-in-out;
}
.chat__typing span:nth-child(2) { animation-delay: .18s; }
.chat__typing span:nth-child(3) { animation-delay: .36s; }
@keyframes chatBlink { 0%,80%,100% { opacity:.28; transform:translateY(0) } 40% { opacity:1; transform:translateY(-3px) } }

.chat__chips {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  padding: .7rem 1.1rem 0;
  flex-shrink: 0;
  background: var(--bg-alt);
}
.chat__chips button {
  padding: .4rem .75rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 11%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background .2s var(--ease), transform .2s var(--ease);
}
.chat__chips button:hover { background: color-mix(in srgb, var(--accent) 20%, transparent); transform: translateY(-1px); }

.chat__form {
  display: flex;
  gap: .5rem;
  padding: .8rem 1.1rem;
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
.chat__form input {
  flex: 1;
  min-width: 0;
  padding: .7rem .9rem;
  font-size: .88rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.chat__form input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}
.chat__form button {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  flex-shrink: 0;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: background .2s var(--ease), transform .2s var(--ease);
}
.chat__form button:hover:not(:disabled) { background: var(--accent-hover); transform: scale(1.05); }
.chat__form button:disabled { opacity: .5; cursor: not-allowed; }
.chat__form button svg { width: 17px; height: 17px; }

.chat__fine {
  padding: 0 1.1rem .7rem;
  font-size: .68rem;
  color: var(--text-subtle);
  text-align: center;
  background: var(--bg-alt);
  flex-shrink: 0;
}

@media (max-width: 560px) {
  .chat__panel {
    right: 12px; bottom: 84px;
    width: calc(100vw - 24px);
    height: min(70vh, calc(100vh - 120px));
  }
  .chat__launcher { right: 16px; bottom: 16px; width: 54px; height: 54px; }
  }
@media (prefers-reduced-motion: reduce) {
  .chat__typing span { animation: none; }
}

/* ==========================================================================
   22. Inner-page hero + breadcrumb
   ========================================================================== */
/* Inner pages have an opaque header from the start */
.header--solid {
  background: color-mix(in srgb, var(--bg-void) 80%, transparent);
  backdrop-filter: saturate(180%) blur(16px);
  border-bottom-color: var(--border);
}

.phero {
  position: relative;
  padding-block: calc(80px + clamp(56px, 7vw, 96px)) clamp(52px, 6.5vw, 88px);
  background: var(--navy-950);
  color: #fff;
  overflow: hidden;
  isolation: isolate;
}
.phero__media { position: absolute; inset: 0; z-index: -2; }
.phero__media img { width: 100%; height: 100%; object-fit: cover; }
.phero__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgb(10 11 13 / .97) 0%, rgb(13 15 20 / .94) 48%, rgb(13 15 20 / .84) 100%),
    radial-gradient(55% 75% at 88% 15%, rgb(255 106 43 / .18), transparent 70%);
}
.phero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgb(255 255 255 / .045) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / .045) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(110% 85% at 15% 45%, #000 20%, transparent 78%);
}
.phero__inner { position: relative; max-width: 58rem; }
.phero .eyebrow { color: var(--orange-300); margin-bottom: .9rem; }
.phero h1 {
  color: #fff;
  font-size: clamp(2.1rem, 4.6vw, 3.5rem);
  margin-bottom: 1rem;
}
.phero__lede {
  font-size: clamp(1rem, 1.45vw, 1.14rem);
  color: rgb(255 255 255 / .78);
  max-width: 58ch;
}

.crumb {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin-bottom: 1.3rem;
  font-family: var(--font-mono);
  font-size: .73rem;
  letter-spacing: .06em;
  color: rgb(255 255 255 / .55);
}
.crumb a { color: rgb(255 255 255 / .72); transition: color .2s var(--ease); }
.crumb a:hover { color: var(--orange-300); }
.crumb span[aria-current] { color: var(--orange-300); }

/* ==========================================================================
   23. Long-form prose (legal pages)
   ========================================================================== */
.prose { max-width: 72ch; }
.prose__meta {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-subtle);
  padding-bottom: 1.6rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}
.prose h2 {
  font-size: clamp(1.15rem, 1.9vw, 1.42rem);
  margin-top: 2.4rem;
  margin-bottom: .75rem;
}
.prose h2:first-of-type { margin-top: 0; }
.prose p { color: var(--text-muted); margin-bottom: 1rem; }
.prose ul { display: grid; gap: .55rem; margin: 0 0 1rem; padding-left: 1.2rem; list-style: disc; }
.prose li { color: var(--text-muted); }
.prose li::marker { color: var(--accent); }
.prose strong { color: var(--text); font-weight: 600; }
.prose a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--accent-hover); }