/* ==========================================================================
   V & V TECHNIK LLP — Design System
   Industrial / precision-engineering visual language.
   Typefaces: Space Grotesk (display), IBM Plex Sans (body), IBM Plex Mono (data/labels)
   ========================================================================== */

:root{
  /* base surfaces */
  --bg:            #0b0c0e;
  --bg-raised:     #131518;
  --bg-card:       #17191d;
  --bg-card-hover: #1c1f24;

  /* lines */
  --line:          #24272c;
  --line-strong:   #34383f;

  /* text */
  --text:          #edeef0;
  --text-mute:     #9aa1ab;
  --text-faint:    #6b7178;

  /* brand */
  --blue:          #2d2f93;
  --blue-bright:   #5457d6;
  --blue-tint:     #b9baf0;
  --green:         #83c23f;
  --green-dim:     #6a9e33;
  --green-tint:    #d6ecc1;

  /* metallic accent */
  --steel:         #c8cdd4;

  /* layout */
  --container:     1240px;
  --gutter:        24px;
  --radius-s:      2px;
  --radius-m:      3px;

  /* type */
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body:    'IBM Plex Sans', 'Segoe UI', sans-serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;
}

/* ---------------------------------------------------------------------- */
/* Reset                                                                   */
/* ---------------------------------------------------------------------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ font-size: 18px; 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;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
ul{ margin: 0; padding: 0; list-style: none; }
h1,h2,h3,h4{ font-family: var(--font-display); font-weight: 600; line-height: 1.12; margin: 0 0 .5em; letter-spacing: -0.01em; color: var(--text); }
p{ margin: 0 0 1.1em; color: var(--text-mute); max-width: 62ch; }
button{ font-family: inherit; }

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

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

/* ---------------------------------------------------------------------- */
/* Type scale                                                              */
/* ---------------------------------------------------------------------- */
h1, .h1{ font-size: clamp(2.35rem, 4.4vw, 3.9rem); }
h2, .h2{ font-size: clamp(1.7rem, 2.6vw, 2.35rem); }
h3, .h3{ font-size: 1.28rem; }
h4, .h4{ font-size: 1.05rem; }
.lede{ font-size: 1.125rem; color: var(--text-mute); max-width: 56ch; }
.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: .55em;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .02em;
  color: var(--green);
  margin-bottom: 1rem;
}
.eyebrow::before{
  content:'';
  width: 22px; height: 1px;
  background: var(--green);
  display:inline-block;
}
.mono{ font-family: var(--font-mono); }

/* ---------------------------------------------------------------------- */
/* Layout                                                                   */
/* ---------------------------------------------------------------------- */
.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
section{ padding: 5.5rem 0; position: relative; }
.section-tight{ padding: 3.4rem 0; }
@media (max-width: 720px){
  section{ padding: 3.4rem 0; }
}
.section-alt{ background: var(--bg-raised); }
.section-border-t{ border-top: 1px solid var(--line); }

.grid{ display: grid; gap: var(--gutter); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-4{ grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px){
  .grid-4{ grid-template-columns: repeat(2, 1fr); }
  .grid-3{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px){
  .grid-2, .grid-3, .grid-4{ grid-template-columns: 1fr; }
}

.split{
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.split.reverse{ grid-template-columns: .95fr 1.05fr; }
.split.reverse > *:first-child{ order: 2; }
@media (max-width: 860px){
  .split, .split.reverse{ grid-template-columns: 1fr; }
  .split.reverse > *:first-child{ order: 0; }
}

/* ---------------------------------------------------------------------- */
/* Technical blueprint texture + corner brackets                           */
/* ---------------------------------------------------------------------- */
.blueprint-bg{
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 42px 42px;
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 40%, transparent 90%);
          mask-image: radial-gradient(ellipse 90% 80% at 50% 0%, #000 40%, transparent 90%);
  opacity: .5;
}

.frame{
  position: relative;
  padding: clamp(14px, 2vw, 22px);
}
.frame::before, .frame::after,
.frame > .fc-tl, .frame > .fc-br{ content:''; }
.frame::before{
  position:absolute; top:0; left:0; width:26px; height:26px;
  border-top: 2px solid var(--green); border-left: 2px solid var(--green);
}
.frame::after{
  position:absolute; bottom:0; right:0; width:26px; height:26px;
  border-bottom: 2px solid var(--green); border-right: 2px solid var(--green);
}

/* ---------------------------------------------------------------------- */
/* Header / Nav                                                            */
/* ---------------------------------------------------------------------- */
.site-header{
  position: sticky; top: 0; z-index: 100;
  background: rgba(11,12,14,.86);
  backdrop-filter: blur(10px) saturate(120%);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, background .25s ease;
}
.site-header.is-scrolled{
  border-bottom-color: var(--line);
  background: rgba(11,12,14,.97);
}
.topbar{
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.topbar .container{
  display:flex; align-items:center; justify-content:space-between;
  height: 40px; font-family: var(--font-mono); font-size:.78rem; color: var(--text-faint);
}
.topbar a{ color: var(--text-faint); display:flex; align-items:center; gap:.45rem; }
.topbar a:hover{ color: var(--green); }
.topbar svg{ width:15px; height:15px; stroke: var(--green); flex-shrink:0; }
@media (max-width: 700px){ .topbar{ display:none; } }

.nav-row{
  display:flex; align-items:center; justify-content:space-between;
  height: 78px;
  gap: 1.2rem;
}
.brand{ display:flex; align-items:center; gap:.6rem; flex-shrink:0; }
.brand img{ height: 38px; width:auto; }
.brand-word{ font-family: var(--font-display); font-weight:600; font-size:1.05rem; line-height:1.05; color:var(--text); white-space:nowrap; }

.nav-links{ display:flex; align-items:center; gap:1.35rem; }
.nav-links a{
  font-size:.87rem; color: var(--text-mute); position:relative; padding:.4rem 0;
  transition: color .2s ease;
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active{ color: var(--text); }
.nav-links a.active::after{
  content:''; position:absolute; left:0; right:0; bottom:-2px; height:2px; background: var(--green);
}
.nav-cta-wrap{ display:flex; align-items:center; gap:1rem; flex-shrink:0; }

.hamburger{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:38px; height:38px; background:none; border:1px solid var(--line-strong); border-radius:var(--radius-s);
  cursor:pointer;
}
.hamburger span{ display:block; height:2px; width:18px; margin:0 auto; background: var(--text); transition: transform .25s ease, opacity .25s ease; }
.hamburger.is-open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2){ opacity:0; }
.hamburger.is-open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1180px){
  .nav-links{
    position:fixed; top:78px; left:0; right:0; height: calc(100vh - 78px); height: calc(100dvh - 78px);
    background: var(--bg); border-top:1px solid var(--line);
    flex-direction:column; align-items:flex-start; gap:0;
    padding: 1rem var(--gutter) 2rem;
    transform: translateY(-8px);
    opacity:0; visibility:hidden; pointer-events:none;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
    overflow-y:auto;
  }
  .nav-links.is-open{ opacity:1; visibility:visible; pointer-events:auto; transform:translateY(0); }
  .nav-links a{ width:100%; padding:.9rem 0; border-bottom:1px solid var(--line); font-size:1.02rem; }
  .hamburger{ display:flex; }
  .nav-cta-wrap .btn{ display:none; }
}

/* ---------------------------------------------------------------------- */
/* Buttons                                                                  */
/* ---------------------------------------------------------------------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.6rem;
  font-family: var(--font-body); font-weight:600; font-size:.92rem;
  padding: .85rem 1.5rem;
  border-radius: var(--radius-s);
  border: 1px solid transparent;
  cursor:pointer;
  transition: background .2s ease, border-color .2s ease, color .2s ease, transform .15s ease;
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{ background: var(--green); color:#0b0c0e; }
.btn-primary:hover{ background: var(--green-tint); }
.btn-outline{ border-color: var(--line-strong); color: var(--text); background:transparent; }
.btn-outline:hover{ border-color: var(--green); color: var(--green); }
.btn-block{ width:100%; }
.btn-row{ display:flex; gap:1rem; flex-wrap:wrap; }

/* ---------------------------------------------------------------------- */
/* Hero                                                                     */
/* ---------------------------------------------------------------------- */
.hero{
  position:relative;
  padding: 5.5rem 0 6rem;
  overflow:hidden;
  border-bottom: 1px solid var(--line);
}
.hero-grid{
  display:grid; grid-template-columns: 1.08fr .92fr; gap: 3rem; align-items:center; position:relative; z-index:2;
}
@media (max-width: 900px){ .hero-grid{ grid-template-columns:1fr; } }
.hero h1{ margin-bottom: 1.1rem; }
.hero .lede{ margin-bottom: 2.1rem; }
.hero-stats{
  display:flex; gap: 2.2rem; margin-top: 3rem; padding-top: 2rem; border-top:1px solid var(--line); flex-wrap:wrap;
}
.hero-stat-label{ font-size:.85rem; color: var(--text-mute); max-width: 15ch; }
.hero-stat-label svg{ width:28px; height:28px; stroke: var(--green); fill:none; stroke-width:1.5; display:block; margin-bottom:.7rem; }
.page-hero{
  padding: 3.6rem 0 3rem;
  border-bottom: 1px solid var(--line);
  position:relative;
}
.page-hero .eyebrow{ margin-bottom: .9rem; }
.breadcrumb{ font-family: var(--font-mono); font-size:.78rem; color: var(--text-faint); margin-bottom: 1.4rem; }
.breadcrumb a{ color: var(--text-faint); }
.breadcrumb a:hover{ color: var(--green); }

/* ---------------------------------------------------------------------- */
/* Cards                                                                    */
/* ---------------------------------------------------------------------- */
.card{
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 2rem;
  transition: border-color .2s ease, background .2s ease;
}
.card:hover{ border-color: var(--line-strong); background: var(--bg-card-hover); }
.card .icon{ margin-bottom: 1.3rem; }
.card h3{ margin-bottom:.6rem; font-size:1.15rem; }
.card p{ margin-bottom:0; font-size:.95rem; }
.card-link{ display:inline-flex; align-items:center; gap:.4rem; margin-top:1.2rem; font-size:.87rem; font-weight:600; color: var(--green); }
.card-link svg{ width:18px; height:18px; stroke: var(--green); fill:none; stroke-width:2; }

.icon{
  width:58px; height:58px;
  display:flex; align-items:center; justify-content:center;
  border:1px solid var(--line-strong); border-radius: var(--radius-s);
  background: var(--bg-raised);
}
.icon svg{ width:30px; height:30px; stroke:var(--green); fill:none; stroke-width:1.5; }

/* ---------------------------------------------------------------------- */
/* Process / sequence                                                       */
/* ---------------------------------------------------------------------- */
.process{
  display:grid; grid-template-columns: repeat(7,1fr); gap: 0; position:relative;
  border-top: 1px solid var(--line);
}
.process-step{
  padding: 1.8rem 1.1rem 1.4rem; border-right:1px solid var(--line); position:relative;
}
.process-step:last-child{ border-right:none; }
.process-step .num{ font-family:var(--font-mono); font-size:.78rem; color: var(--green); display:block; margin-bottom:.9rem; }
.process-step h4{ font-size:.96rem; margin-bottom:.5rem; }
.process-step p{ font-size:.83rem; margin-bottom:0; }
.process-step::after{
  content:''; position:absolute; top:1.9rem; right:-5px; width:9px; height:9px;
  border-top:1px solid var(--line-strong); border-right:1px solid var(--line-strong);
  transform: rotate(45deg); background:var(--bg);
}
.process-step:last-child::after{ display:none; }
@media (max-width: 980px){
  .process{ grid-template-columns: repeat(2, 1fr); }
  .process-step{ border-right:1px solid var(--line); border-bottom:1px solid var(--line); }
  .process-step::after{ display:none; }
}
@media (max-width: 560px){
  .process{ grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------------- */
/* Section headers                                                          */
/* ---------------------------------------------------------------------- */
.section-head{ max-width: 720px; margin-bottom: 3rem; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head.center p{ margin-left:auto; margin-right:auto; }
.section-head-row{
  display:flex; justify-content:space-between; align-items:flex-end; gap: 2rem; margin-bottom: 3rem;
}
@media (max-width: 700px){ .section-head-row{ flex-direction:column; align-items:flex-start; } }

/* ---------------------------------------------------------------------- */
/* Table (specs / facilities)                                               */
/* ---------------------------------------------------------------------- */
.spec-table{ width:100%; border-collapse: collapse; }
.spec-table th, .spec-table td{
  text-align:left; padding: 1rem 1.1rem; border-bottom:1px solid var(--line); font-size:.92rem;
}
.spec-table th{ font-family:var(--font-mono); font-weight:400; font-size:.76rem; color:var(--text-faint); text-transform:uppercase; letter-spacing:.04em; }
.spec-table td{ color: var(--text-mute); }
.spec-table td.placeholder{ color: var(--text-faint); font-style:italic; }
.table-scroll{ overflow-x:auto; border:1px solid var(--line); border-radius: var(--radius-m); }

/* ---------------------------------------------------------------------- */
/* Lists with markers                                                       */
/* ---------------------------------------------------------------------- */
.check-list li{
  display:flex; gap: .8rem; padding: .55rem 0; color: var(--text-mute); font-size:.97rem; border-bottom: 1px solid var(--line);
}
.check-list li:last-child{ border-bottom:none; }
.check-list svg{ width:20px; height:20px; stroke:var(--green); flex-shrink:0; margin-top:.2rem; }

/* ---------------------------------------------------------------------- */
/* CTA banner                                                               */
/* ---------------------------------------------------------------------- */
.cta-band{
  background: var(--bg-raised);
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  padding: 4rem 0;
}
.cta-band .split{ align-items:center; }
.cta-band h2{ margin-bottom:.6rem; }
.cta-band p{ margin-bottom:0; }

/* ---------------------------------------------------------------------- */
/* Value / why-us tiles                                                     */
/* ---------------------------------------------------------------------- */
.value-tile{ padding: 1.8rem 0; border-top: 1px solid var(--line); display:grid; grid-template-columns: 60px 1fr; gap:1.4rem; }
.value-tile:last-child{ }
.value-tile .num{ font-family: var(--font-mono); color: var(--text-faint); font-size:1.1rem; padding-top:.15rem; }
.value-tile h3{ margin-bottom:.45rem; }
.value-tile p{ margin-bottom:0; }

/* ---------------------------------------------------------------------- */
/* Placeholder note                                                         */
/* ---------------------------------------------------------------------- */
.notice{
  border:1px dashed var(--line-strong);
  border-radius: var(--radius-m);
  padding: 1.1rem 1.3rem;
  font-size:.87rem; color: var(--text-faint);
  font-family: var(--font-mono);
  display:flex; gap:.7rem; align-items:flex-start;
}
.notice svg{ width:20px; height:20px; stroke: var(--text-faint); flex-shrink:0; margin-top:.15rem; }

.tag{
  display:inline-block; font-family: var(--font-mono); font-size:.72rem; color: var(--text-faint);
  border:1px solid var(--line-strong); border-radius: 99px; padding:.25rem .7rem; margin: 0 .4rem .4rem 0;
}

/* ---------------------------------------------------------------------- */
/* Project / case study cards                                               */
/* ---------------------------------------------------------------------- */
.project-card{
  border:1px solid var(--line); border-radius: var(--radius-m); background: var(--bg-card);
  padding: 2.2rem; display:grid; grid-template-columns: 140px 1fr; gap: 2rem;
}
.project-card .pnum{ font-family: var(--font-display); font-size:2.6rem; color: var(--line-strong); line-height:1; }
.project-meta{ display:grid; grid-template-columns: repeat(2,1fr); gap: .9rem 2rem; margin-top:1.2rem; }
.project-meta div span{ display:block; font-family:var(--font-mono); font-size:.72rem; color: var(--text-faint); text-transform:uppercase; letter-spacing:.03em; margin-bottom:.25rem; }
.project-meta div p{ margin:0; font-size:.92rem; color: var(--text-mute); }
@media (max-width: 700px){
  .project-card{ grid-template-columns: 1fr; }
  .project-meta{ grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------------- */
/* Forms                                                                    */
/* ---------------------------------------------------------------------- */
.field{ margin-bottom: 1.3rem; }
.field label{ display:block; font-size:.85rem; color: var(--text-mute); margin-bottom:.5rem; }
.field input, .field textarea, .field select{
  width:100%; background: var(--bg-raised); border:1px solid var(--line-strong); color: var(--text);
  padding: .85rem 1rem; border-radius: var(--radius-s); font-family: var(--font-body); font-size:.95rem;
}
.field input:focus, .field textarea:focus, .field select:focus{ outline:none; border-color: var(--green); }
.field textarea{ min-height:130px; resize:vertical; }
.field-row{ display:grid; grid-template-columns: 1fr 1fr; gap: 1.3rem; }
@media (max-width:620px){ .field-row{ grid-template-columns:1fr; } }
.field-file{ border:1px dashed var(--line-strong); border-radius: var(--radius-s); padding: 1.1rem; }
.field-file input{ border:none; padding:0; background:none; }
.field-hint{ font-size:.78rem; color: var(--text-faint); margin-top:.4rem; display:flex; align-items:center; gap:.4rem; }
.field-hint svg{ width:16px; height:16px; stroke: var(--text-faint); fill:none; stroke-width:1.5; flex-shrink:0; }
.form-note{ font-size:.82rem; color:var(--text-faint); margin-top:1rem; }
#form-success{
  display:none; border:1px solid var(--green); background: rgba(131,194,63,.08);
  color: var(--text); padding: 1.3rem; border-radius: var(--radius-m); font-size:.94rem; margin-bottom:1.5rem;
}
#form-success.is-visible{ display:block; }

/* ---------------------------------------------------------------------- */
/* Contact info blocks                                                      */
/* ---------------------------------------------------------------------- */
.contact-block{ display:flex; gap:1.1rem; padding: 1.4rem 0; border-top: 1px solid var(--line); }
.contact-block:first-child{ border-top:none; }
.contact-block .icon{ flex-shrink:0; }
.contact-block h4{ margin-bottom:.35rem; }
.contact-block p{ margin-bottom:0; font-size:.94rem; }
.contact-block a{ color: var(--text-mute); }
.contact-block a:hover{ color: var(--green); }

.map-frame{ border:1px solid var(--line); border-radius: var(--radius-m); overflow:hidden; filter: grayscale(1) invert(.92) contrast(.9); }
.map-frame iframe{ width:100%; height:340px; border:0; display:block; }

/* ---------------------------------------------------------------------- */
/* Footer                                                                   */
/* ---------------------------------------------------------------------- */
.site-footer{ border-top:1px solid var(--line); padding: 4rem 0 2rem; background: var(--bg-raised); }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
@media (max-width: 760px){ .footer-grid{ grid-template-columns: 1fr; gap:2.2rem; } }
.footer-brand{ display:flex; align-items:center; gap:.7rem; margin-bottom:1.1rem; }
.footer-brand img{ height:38px; }
.footer-brand span{ font-family:var(--font-display); font-weight:600; }
.site-footer h4{ font-size:.85rem; text-transform:uppercase; letter-spacing:.04em; color: var(--text-faint); margin-bottom:1.2rem; font-family: var(--font-mono); font-weight:400; }
.footer-links li{ margin-bottom:.7rem; }
.footer-links a{ color: var(--text-mute); font-size:.93rem; }
.footer-links a:hover{ color: var(--green); }
.footer-bottom{
  border-top:1px solid var(--line); padding-top: 1.6rem;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:1rem;
  font-size:.82rem; color: var(--text-faint);
}

/* ---------------------------------------------------------------------- */
/* Misc utilities                                                          */
/* ---------------------------------------------------------------------- */
.text-center{ text-align:center; }
.mt-0{ margin-top:0 !important; }
.mb-0{ margin-bottom:0 !important; }
.stack{ display:flex; flex-direction:column; gap:1rem; }
.divider{ height:1px; background:var(--line); width:100%; margin: 3rem 0; }
.tabular-figures{ font-variant-numeric: tabular-nums; }

.stat{ }
.stat .n{ font-family: var(--font-display); font-size: 2.1rem; color: var(--text); font-weight:600; display:block; }
.stat .l{ font-size:.85rem; color: var(--text-mute); max-width:18ch; }

.pill-row{ display:flex; gap:.7rem; flex-wrap:wrap; margin-top:1.4rem; }
.pill{ font-family:var(--font-mono); font-size:.76rem; border:1px solid var(--line-strong); padding:.4rem .8rem; border-radius:99px; color:var(--text-mute); }

.two-col-text{ columns: 2; column-gap: 3rem; }
@media (max-width: 760px){ .two-col-text{ columns: 1; } }

/* ---------------------------------------------------------------------- */
/* Technical illustrations                                                 */
/* ---------------------------------------------------------------------- */
.tech-illust{ width:100%; height:auto; }
.tech-illust .draw-path{
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw-in 2.1s cubic-bezier(.4,.1,.2,1) .3s forwards;
}
@keyframes draw-in{ to{ stroke-dashoffset: 0; } }

.visual-panel{
  background: var(--bg-raised);
  border: 1px solid var(--line);
}

/* ---------------------------------------------------------------------- */
/* 3D live illustrations (CSS 3D transforms, continuously animated)        */
/* ---------------------------------------------------------------------- */
.scene3d{
  width:100%; min-height:360px;
  display:flex; align-items:center; justify-content:center;
  perspective: 1300px; perspective-origin: 50% 35%;
  position:relative;
}
.scene3d .sim-caption{
  position:absolute; left:0; bottom:0; font-family:var(--font-mono); font-size:.78rem; color:var(--text-faint);
  display:flex; align-items:center; gap:.5rem;
}
.sim-dot{ width:7px; height:7px; border-radius:50%; background:var(--green); animation: dot-pulse 1.6s ease-in-out infinite; flex-shrink:0; }
@keyframes dot-pulse{ 0%,100%{ opacity:1; } 50%{ opacity:.25; } }

/* Solid / wireframe rotating block ------------------------------------- */
.block3d{
  position:relative; width:220px; height:150px;
  transform-style:preserve-3d;
  animation: block-spin 20s linear infinite;
}
.block3d:hover{ animation-play-state:paused; }
.block3d .f{
  position:absolute; top:50%; left:50%;
  border:1px solid var(--line-strong);
  display:flex; align-items:center; justify-content:center; overflow:hidden;
}
.block3d .f-front,.block3d .f-back,.block3d .f-top,.block3d .f-bottom{ width:220px; height:150px; margin:-75px 0 0 -110px; }
.block3d .f-left,.block3d .f-right{ width:150px; height:150px; margin:-75px 0 0 -75px; }
.block3d .f-front{ transform:translateZ(75px); background:var(--bg-raised); }
.block3d .f-back{ transform:translateZ(-75px) rotateY(180deg); background:#101317; }
.block3d .f-left{ transform:rotateY(-90deg) translateZ(110px); background:#0e1013; }
.block3d .f-right{ transform:rotateY(90deg) translateZ(110px); background:#15181d; }
.block3d .f-top{ transform:rotateX(90deg) translateZ(75px); background:#1c1f25; }
.block3d .f-bottom{ transform:rotateX(-90deg) translateZ(75px); background:#0a0b0d; }
.block3d.wireframe .f{ background:rgba(131,194,63,.04); border-color: rgba(131,194,63,.55); }
.block3d .f svg{ width:100%; height:100%; }
@keyframes block-spin{ from{ transform:rotateX(-16deg) rotateY(0deg);} to{ transform:rotateX(-16deg) rotateY(360deg);} }

/* Mould open/close cycle ------------------------------------------------ */
.mold-scene{ transform-style:preserve-3d; }
.mold-rig{
  position:relative; width:230px; height:210px;
  transform-style:preserve-3d;
  transform: rotateX(-20deg) rotateY(-28deg);
}
.mold-half{
  position:absolute; left:50%; width:200px; height:70px; margin-left:-100px;
  border:1px solid var(--line-strong); transform-style:preserve-3d;
}
.mold-half .slab{ position:absolute; inset:0; background:var(--bg-raised); border:1px solid var(--line-strong); }
.mold-top{ top:22px; animation: mold-top-move 9s ease-in-out infinite; }
.mold-top .slab{ background:#1c1f25; }
.mold-bottom{ top:118px; animation: mold-bottom-move 9s ease-in-out infinite; }
.mold-bottom .slab{ background:#0e1013; }
.mold-cavity-mark{
  position:absolute; left:50%; top:50%; width:96px; height:26px; margin:-13px 0 0 -48px;
  border:1.5px solid var(--green); background:rgba(131,194,63,.1);
}
.mold-part{
  position:absolute; left:50%; top:-9px; width:70px; height:16px; margin-left:-35px;
  background: var(--green); opacity:0; animation: mold-part-fade 9s ease-in-out infinite;
}
@keyframes mold-top-move{
  0%,22%{ transform:translateY(0); } 38%,60%{ transform:translateY(-42px); } 78%,100%{ transform:translateY(0); }
}
@keyframes mold-bottom-move{
  0%,22%{ transform:translateY(0); } 38%,60%{ transform:translateY(42px); } 78%,100%{ transform:translateY(0); }
}
@keyframes mold-part-fade{
  0%,18%{ opacity:0; } 26%,58%{ opacity:1; } 66%,100%{ opacity:0; }
}
.mold-labels{ position:absolute; left:0; top:0; font-family:var(--font-mono); font-size:.78rem; }
.mold-labels span{ position:absolute; left:0; top:0; color:var(--green); opacity:0; white-space:nowrap; }
.mold-labels .l1{ animation: label-1 9s ease-in-out infinite; }
.mold-labels .l2{ animation: label-2 9s ease-in-out infinite; }
.mold-labels .l3{ animation: label-3 9s ease-in-out infinite; }
.mold-labels .l4{ animation: label-4 9s ease-in-out infinite; }
@keyframes label-1{ 0%,20%{opacity:1;} 26%,100%{opacity:0;} }
@keyframes label-2{ 0%,24%{opacity:0;} 30%,42%{opacity:1;} 48%,100%{opacity:0;} }
@keyframes label-3{ 0%,46%{opacity:0;} 50%,64%{opacity:1;} 70%,100%{opacity:0;} }
@keyframes label-4{ 0%,72%{opacity:0;} 76%,96%{opacity:1;} 100%{opacity:0;} }

.block3d.static{ animation:none; transform: rotateX(-14deg) rotateY(-30deg); }

/* Inspection probe simulation -------------------------------------------- */
.inspect-rig{ position:relative; width:260px; height:230px; }
.inspect-rig .block3d{ position:absolute; left:50%; top:56px; margin-left:-110px; }
.inspect-base{
  position:absolute; left:14px; right:14px; bottom:14px; height:16px;
  background:#0a0b0d; border:1px solid var(--line-strong);
  transform: perspective(600px) rotateX(50deg); transform-origin: bottom center;
}
.probe{ position:absolute; top:6px; left:50%; width:2px; height:76px; background:var(--blue-bright); margin-left:-1px;
  transform-origin: top center; animation: probe-move 6s ease-in-out infinite; }
.probe::after{ content:''; position:absolute; left:50%; bottom:0; width:11px; height:11px; margin-left:-5.5px; border-radius:50%; background:var(--green); box-shadow:0 0 0 3px rgba(131,194,63,.18); }
@keyframes probe-move{
  0%,8%{ transform: translateX(-46px) translateY(0); }
  20%,26%{ transform: translateX(-46px) translateY(44px); }
  36%{ transform: translateX(-46px) translateY(0); }
  44%,52%{ transform: translateX(6px) translateY(48px); }
  62%{ transform: translateX(6px) translateY(0); }
  70%,78%{ transform: translateX(52px) translateY(40px); }
  88%,100%{ transform: translateX(52px) translateY(0); }
}

.card.is-placeholder{
  border-style: dashed;
  border-color: var(--line-strong);
  background: transparent;
}
.card.is-placeholder .badge{
  display:inline-block; font-family: var(--font-mono); font-size:.68rem; color: var(--text-faint);
  border:1px solid var(--line-strong); border-radius:99px; padding:.2rem .6rem; margin-bottom:1rem;
}