/* ==========================================================================
   MECH TECH ENGINEERING — stylesheet
   Tokens: Ink / Steel / Gold / Weld-orange on a warm industrial grey paper
   Type: Oswald (display, condensed steel-plate caps) / IBM Plex Sans (body)
         / IBM Plex Mono (specs, labels, nameplate data)
   ========================================================================== */

:root{
  --ink:        #15171a;
  --ink-2:      #1d2025;
  --ink-3:      #262a30;
  --steel:      #8c8f94;
  --steel-dark: #4a4d52;
  --paper:      #eae7e0;
  --paper-2:    #ddd9d0;
  --card:       #f5f3ee;
  --gold:       #c2900e;
  --gold-light: #e0ac2a;
  --weld:       #ff5a1f;
  --weld-2:     #ffc94a;
  --text-dark:  #1b1c1f;
  --text-mute:  #55585e;
  --text-light: #f2f0ea;
  --text-light-mute: #b7bac0;

  --display: "Oswald", "Arial Narrow", sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "Courier New", monospace;

  --container: 1240px;
  --radius: 2px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--text-dark);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -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{ margin: 0; font-family: var(--display); text-transform: uppercase; letter-spacing: 0.02em; }
p{ margin: 0; }
button{ font-family: inherit; cursor: pointer; }

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.eyebrow{
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before{
  content: "";
  width: 22px; height: 2px;
  background: var(--weld);
  display: inline-block;
}

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

/* ---------- buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{
  background: linear-gradient(100deg, var(--weld), var(--weld-2));
  color: #1a1200;
  font-weight: 600;
}
.btn-primary:hover{ box-shadow: 0 8px 22px -6px rgba(255,90,31,.55); }
.btn-ghost{
  border-color: rgba(255,255,255,.35);
  color: var(--text-light);
}
.btn-ghost:hover{ border-color: var(--gold-light); color: var(--gold-light); }
.btn-dark{
  border-color: var(--ink);
  color: var(--ink);
}
.btn-dark:hover{ background: var(--ink); color: var(--text-light); }

/* ---------- nav ---------- */
.site-nav{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(21,23,26,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-nav .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand{
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-light);
}
.brand img{ height: 42px; width: auto; }
.brand-word{
  font-family: var(--display);
  font-size: 18px;
  letter-spacing: .06em;
  line-height: 1;
}
.brand-word small{
  display: block;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .18em;
  color: var(--text-light-mute);
  margin-top: 3px;
  text-transform: uppercase;
}
.nav-links{
  display: flex;
  gap: 34px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--text-light-mute);
}
.nav-links a{ position: relative; padding: 6px 0; }
.nav-links a:hover{ color: var(--text-light); }
.nav-links a::after{
  content:"";
  position: absolute; left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--weld);
  transition: width .2s ease;
}
.nav-links a:hover::after{ width: 100%; }
.nav-cta{ display: none; }
.nav-toggle{
  display: none;
  background: none; border: 1px solid rgba(255,255,255,.3);
  color: var(--text-light);
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
  border-radius: var(--radius);
}

@media (min-width: 860px){
  .nav-cta{ display: inline-flex; }
}
@media (max-width: 859px){
  .nav-links{
    position: fixed;
    top: 76px; left: 0; right: 0;
    background: var(--ink);
    flex-direction: column;
    gap: 0;
    padding: 8px 20px 20px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
  }
  .nav-links.open{ opacity: 1; transform: translateY(0); pointer-events: auto; }
  .nav-links a{ padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.08); }
  .nav-toggle{ display: inline-flex; }
}

/* ---------- hero ---------- */
.hero{
  position: relative;
  background: var(--ink);
  color: var(--text-light);
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 76px;
}
.hero::before{
  /* subtle steel-plate texture via layered gradients */
  content:"";
  position: absolute; inset: 0;
  background:
    radial-gradient(1200px 600px at 85% 20%, rgba(194,144,14,.10), transparent 60%),
    repeating-linear-gradient(180deg, rgba(255,255,255,.02) 0px, rgba(255,255,255,.02) 1px, transparent 1px, transparent 3px);
  pointer-events: none;
}
.hero .wrap{
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 40px;
  align-items: center;
  width: 100%;
  padding-top: 40px;
  padding-bottom: 40px;
}
.hero-copy h1{
  font-size: clamp(38px, 5.4vw, 68px);
  line-height: 0.98;
  margin: 18px 0 22px;
}
.hero-copy h1 em{
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--gold-light);
}
.hero-copy p{
  max-width: 46ch;
  color: var(--text-light-mute);
  font-size: 16.5px;
}
.hero-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}
.hero-stage{
  position: relative;
  height: clamp(320px, 46vw, 560px);
}
.hero-stage canvas{ position:absolute; inset:0; width:100%!important; height:100%!important; touch-action: none; }
.hero-stage-hint{
  position: absolute;
  bottom: 10px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-light-mute);
  opacity: .8;
  display: flex; align-items:center; gap:8px;
  pointer-events: none;
}
.hero-stage-hint svg{ width:14px; height:14px; }

@media (max-width: 900px){
  .hero .wrap{ grid-template-columns: 1fr; }
  .hero-stage{ order: -1; height: 300px; }
}

/* ---------- marquee strip ---------- */
.marquee{
  background: var(--ink-2);
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
  overflow: hidden;
  white-space: nowrap;
}
.marquee-track{
  display: inline-flex;
  gap: 0;
  animation: scroll-left 32s linear infinite;
}
.marquee-track span{
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-light-mute);
  padding: 16px 28px;
  border-right: 1px solid rgba(255,255,255,.1);
}
.marquee-track span b{ color: var(--gold-light); font-weight: 600; }
@keyframes scroll-left{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* ---------- section basics ---------- */
section{ padding: clamp(64px, 9vw, 120px) 0; }
.section-head{
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head h2{
  font-size: clamp(30px, 3.6vw, 46px);
  margin-top: 14px;
  line-height: 1.04;
}
.section-head p{
  margin-top: 16px;
  color: var(--text-mute);
  font-size: 16px;
  max-width: 56ch;
}
.section-dark{ background: var(--ink); color: var(--text-light); }
.section-dark .section-head p{ color: var(--text-light-mute); }

/* ---------- about ---------- */
.about-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.about-photo{
  position: relative;
}
.about-photo img{
  border-radius: var(--radius);
  filter: grayscale(.15) contrast(1.05);
}
.about-photo::after{
  content:"";
  position: absolute; inset: 14px -14px -14px 14px;
  border: 2px solid var(--gold);
  z-index: -1;
}
.about-text p{ color: var(--text-mute); margin-bottom: 16px; }
.about-text p:last-of-type{ margin-bottom: 0; }

/* nameplate stat card */
.nameplate{
  margin-top: 32px;
  background: var(--ink);
  color: var(--text-light);
  border-radius: var(--radius);
  padding: 26px 24px;
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.nameplate::before, .nameplate::after,
.nameplate .rivet{
  content:"";
  position:absolute;
  width:7px; height:7px;
  border-radius:50%;
  background: radial-gradient(circle at 35% 30%, #cfd2d6, #5c5f64 70%);
}
.nameplate::before{ top:10px; left:10px; }
.nameplate::after{ bottom:10px; right:10px; }
.nameplate .rivet.tr{ top:10px; right:10px; }
.nameplate .rivet.bl{ bottom:10px; left:10px; }
.nameplate-item .num{
  font-family: var(--mono);
  font-size: clamp(22px,2.6vw,30px);
  color: var(--gold-light);
  font-weight: 600;
}
.nameplate-item .label{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-light-mute);
  margin-top: 4px;
}

@media (max-width: 860px){
  .about-grid{ grid-template-columns: 1fr; }
  .about-photo::after{ display: none; }
  .nameplate{ grid-template-columns: repeat(3,1fr); gap: 16px; padding: 22px 18px; }
}
@media (max-width: 520px){
  .nameplate{ grid-template-columns: 1fr 1fr; }
}

/* ---------- services (control-panel tabs) ---------- */
.svc-panel{
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 0;
  background: var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
}
.svc-tabs{
  background: var(--ink-2);
  border-right: 1px solid rgba(255,255,255,.08);
}
.svc-tab{
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,.06);
  color: var(--text-light-mute);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
  position: relative;
  transition: background .15s ease, color .15s ease;
}
.svc-tab .dot{
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--steel-dark);
  flex: none;
  transition: background .15s ease, box-shadow .15s ease;
}
.svc-tab:hover{ color: var(--text-light); background: rgba(255,255,255,.03); }
.svc-tab.active{ color: var(--text-light); background: rgba(255,90,31,.08); }
.svc-tab.active .dot{ background: var(--weld); box-shadow: 0 0 10px 2px rgba(255,90,31,.6); }

.svc-content{ position: relative; }
.svc-pane{
  display: none;
  grid-template-columns: 1fr 1fr;
  min-height: 420px;
}
.svc-pane.active{ display: grid; }
.svc-pane img{ height: 100%; width: 100%; object-fit: cover; }
.svc-pane-text{
  padding: clamp(28px, 4vw, 44px);
  color: var(--text-light);
}
.svc-pane-text .tag{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--weld-2);
}
.svc-pane-text h3{
  font-size: clamp(22px,2.4vw,30px);
  margin: 12px 0 16px;
}
.svc-pane-text p{ color: var(--text-light-mute); margin-bottom: 14px; font-size: 15px; }
.svc-pane-text ul{ margin-top: 14px; display: grid; gap: 9px; }
.svc-pane-text li{
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 14.5px; color: var(--text-light-mute);
}
.svc-pane-text li::before{
  content:"▸";
  color: var(--gold-light);
  flex: none;
  margin-top: 1px;
}

@media (max-width: 860px){
  .svc-panel{ grid-template-columns: 1fr; }
  .svc-tabs{ display: flex; overflow-x: auto; border-right: none; border-bottom: 1px solid rgba(255,255,255,.08); }
  .svc-tab{ border-bottom: none; white-space: nowrap; }
  .svc-pane{ grid-template-columns: 1fr; }
  .svc-pane img{ height: 220px; }
}

/* ---------- strengths checklist ---------- */
.strengths-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--steel-dark);
  border: 1px solid var(--steel-dark);
}
.strength-card{
  background: var(--card);
  padding: 30px 26px;
  position: relative;
}
.strength-card .tick{
  width: 34px; height: 34px;
  border: 2px solid var(--gold);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold);
  font-family: var(--mono);
  margin-bottom: 16px;
}
.strength-card h4{
  font-family: var(--body);
  text-transform: none;
  letter-spacing: 0;
  font-size: 16.5px;
  font-weight: 600;
  margin-bottom: 8px;
}
.strength-card p{ color: var(--text-mute); font-size: 14.5px; }

@media (max-width: 860px){
  .strengths-grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px){
  .strengths-grid{ grid-template-columns: 1fr; }
}

/* ---------- clientele ---------- */
.client-strip{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  justify-content: space-between;
}
.client-strip .client{
  filter: grayscale(1) contrast(0.9) opacity(0.65);
  transition: filter .25s ease, opacity .25s ease;
  max-height: 46px;
  max-width: 140px;
  width: auto;
}
.client-strip .client:hover{ filter: none; opacity: 1; }

/* ---------- founder ---------- */
.founder{
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 48px;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--paper-2);
  padding: clamp(28px, 4vw, 48px);
  border-radius: var(--radius);
}
.founder-photo{
    width:220px;
    height:220px;
    border-radius:50%;
    border:2px dashed var(--gold);
    overflow:hidden;
    background:var(--paper-2);
    display:flex;
    align-items:center;
    justify-content:center;
    flex-shrink:0;
}

.founder-photo img{
    width:100%;
    height:100%;
    object-fit:cover;
    object-position:center;
    display:block;
}
.founder-text .tag{
  font-family: var(--mono); font-size: 12px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--gold);
}
.founder-text h3{
  font-size: clamp(24px, 2.6vw, 32px);
  margin: 10px 0 4px;
}
.founder-text .role{ color: var(--text-mute); font-family: var(--mono); font-size: 13px; letter-spacing:.06em; text-transform: uppercase; margin-bottom: 16px; display:block;}
.founder-text p{ color: var(--text-mute); }

@media (max-width: 700px){
  .founder{ grid-template-columns: 1fr; text-align: center; justify-items: center; }
}

/* ---------- CTA band ---------- */
.cta-band{
  background: linear-gradient(100deg, #1a1200, #2a1c00 40%, #1a1200);
  background-color: var(--ink);
  color: var(--text-light);
  padding: 70px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-band h2{ font-size: clamp(28px,4vw,44px); }
.cta-band p{ color: var(--text-light-mute); margin: 14px 0 30px; }
.cta-actions{ display:flex; gap:16px; justify-content:center; flex-wrap: wrap; }

/* ---------- contact / footer ---------- */
.contact{
  background: var(--ink);
  color: var(--text-light);
}
.contact-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.contact-card{
  border: 1px solid rgba(255,255,255,.1);
  padding: 26px 24px;
  border-radius: var(--radius);
}
.contact-card .tag{
  font-family: var(--mono); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--weld-2);
}
.contact-card h4{
  font-family: var(--body); text-transform: none; letter-spacing:0;
  font-size: 17px; margin: 10px 0 12px; font-weight: 600;
}
.contact-card p, .contact-card a{
  color: var(--text-light-mute); font-size: 14.5px; display:block; margin-bottom: 6px;
}
.contact-card a:hover{ color: var(--gold-light); }

footer{
  background: var(--ink);
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 26px 0 34px;
  color: var(--text-light-mute);
  font-family: var(--mono);
  font-size: 12px;
}
.footer-row{
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
}
.footer-row .gst{ letter-spacing: .04em; }

@media (max-width: 860px){
  .contact-grid{ grid-template-columns: 1fr; }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .marquee-track{ animation: none; }
}