/* ============================================================================
   KARNA DYNAMICS PRIVATE LIMITED — design system
   Theme carried over from the Yuvrajsinh Sur portfolio:
   space-navy ground, cyan primary, indigo secondary, orange highlight.

   NOTE ON INLINE STYLES: this site ships a strict Content-Security-Policy
   with no 'unsafe-inline'. That means no style="" attributes anywhere in the
   HTML. Anything that would have been an inline style (background images in
   particular) is a class in this file instead. See the MEDIA CLASSES section.
   ========================================================================= */

/* ---------------------------------------------------------------- FONTS -- */
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/space-grotesk-400.woff2') format('woff2')}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/space-grotesk-500.woff2') format('woff2')}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/space-grotesk-600.woff2') format('woff2')}
@font-face{font-family:'Space Grotesk';font-style:normal;font-weight:700;font-display:swap;src:url('../fonts/space-grotesk-700.woff2') format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:300;font-display:swap;src:url('../fonts/inter-300.woff2') format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/inter-400.woff2') format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/inter-500.woff2') format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url('../fonts/inter-600.woff2') format('woff2')}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:400;font-display:swap;src:url('../fonts/jetbrains-mono-400.woff2') format('woff2')}
@font-face{font-family:'JetBrains Mono';font-style:normal;font-weight:500;font-display:swap;src:url('../fonts/jetbrains-mono-500.woff2') format('woff2')}

/* --------------------------------------------------------------- TOKENS -- */
:root{
  --bg:#070b14;
  --bg2:#0b1120;
  --card:#0f1729;
  --card2:#131d33;
  --border:rgba(96,165,250,.14);
  --border-hi:rgba(34,211,238,.45);
  --accent:#22d3ee;
  --accent-deep:#0ea5e9;
  --accent2:#818cf8;
  --orange:#fb923c;
  --green:#4ade80;
  --text:#e2e8f0;
  --muted:#94a3b8;
  --dim:#64748b;

  --font-display:'Space Grotesk',system-ui,sans-serif;
  --font-body:'Inter',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;

  --nav-h:62px;
  --max:1140px;
  --ease:cubic-bezier(.2,.7,.2,1);
}

/* ----------------------------------------------------------------- BASE -- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px);-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--text);
  font-family:var(--font-body);line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:rgba(34,211,238,.3);color:#fff}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.15}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.mono{font-family:var(--font-mono)}
.grad{background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.accent{color:var(--accent)}

/* Skip link — keyboard users land here first. */
.skip{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--accent);color:#04121a;padding:12px 20px;
  font-weight:600;border-radius:0 0 8px 0;
}
.skip:focus{left:0}

/* Visible to screen readers, not to sighted users. */
.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}

.container{max-width:var(--max);margin:0 auto;padding:0 24px}
.stack{display:flex;flex-direction:column;gap:16px}
section{padding:96px 0}
.sec--tight{padding:64px 0}
.sec--alt{background:var(--bg2)}

/* Scroll progress line across the very top of the viewport. */
.progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  transition:width .1s linear;pointer-events:none;
}

/* ------------------------------------------------------------------ NAV -- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:rgba(7,11,20,.75);
  border-bottom:1px solid var(--border);
  transition:background .3s,border-color .3s;
}
.nav--scrolled{background:rgba(7,11,20,.94);border-bottom-color:rgba(34,211,238,.22)}
.nav__inner{
  max-width:var(--max);margin:0 auto;padding:11px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}

/* Logo: KD monogram (silver K + cyan arc) carried over from the old site,
   recoloured from the original green to the portfolio cyan. */
.logo{display:inline-flex;align-items:center;gap:11px;flex:none}
/* The mark is 953x570, so height drives it and width follows. */
.logo__mark{flex:none;height:27px;width:auto}
.logo__word{display:flex;flex-direction:column;line-height:1}
.logo__karna{font-family:var(--font-display);font-weight:700;font-size:1.05rem;letter-spacing:.18em}
.logo__dyn{font-family:var(--font-display);font-weight:600;font-size:.56rem;letter-spacing:.32em;color:var(--accent);margin-top:3px}
.logo--lg .logo__mark{height:38px}
.logo--lg .logo__karna{font-size:1.35rem}
.logo--lg .logo__dyn{font-size:.68rem;letter-spacing:.3em}

.nav__links{display:flex;align-items:center;gap:6px;list-style:none}
.nav__links>li{position:relative}
.nav__link{
  display:block;font-size:.87rem;color:var(--muted);
  padding:9px 12px;border-radius:8px;transition:color .2s,background .2s;
}
.nav__link:hover,.nav__link[aria-current="page"]{color:var(--accent)}
.nav__link[aria-current="page"]{background:rgba(34,211,238,.07)}
.nav__cta{
  padding:8px 18px;border:1px solid var(--accent);border-radius:8px;
  color:var(--accent);font-weight:500;font-size:.87rem;margin-left:8px;
  transition:background .2s,box-shadow .2s;
}
.nav__cta:hover{background:rgba(34,211,238,.12);box-shadow:0 0 22px rgba(34,211,238,.18)}

/* Products dropdown */
.nav__toggle{display:flex;align-items:center;gap:6px;font-size:.87rem;color:var(--muted);padding:9px 12px;border-radius:8px;transition:color .2s}
.nav__toggle:hover,.nav__toggle[aria-expanded="true"]{color:var(--accent)}
.nav__toggle svg{transition:transform .25s var(--ease)}
.nav__toggle[aria-expanded="true"] svg{transform:rotate(180deg)}
.nav__menu{
  position:absolute;top:calc(100% + 10px);left:0;min-width:290px;
  background:rgba(11,17,32,.98);backdrop-filter:blur(16px);
  border:1px solid var(--border);border-radius:14px;padding:8px;
  list-style:none;box-shadow:0 24px 60px rgba(0,0,0,.55);
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s;
}
.nav__menu[data-open="true"]{opacity:1;visibility:visible;transform:none}
.nav__menu a{
  display:flex;flex-direction:column;gap:2px;
  padding:10px 14px;border-radius:9px;color:var(--muted);
  font-size:.88rem;transition:background .18s,color .18s;
}
.nav__menu a:hover{background:rgba(34,211,238,.08);color:var(--accent)}
.nav__menu a span{font-family:var(--font-mono);font-size:.68rem;color:var(--dim);letter-spacing:.08em}
.nav__menu a:hover span{color:var(--accent2)}

.burger{display:none;width:42px;height:42px;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--border)}
.burger span{display:block;width:18px;height:2px;background:var(--text);position:relative;transition:background .2s}
.burger span::before,.burger span::after{content:'';position:absolute;left:0;width:18px;height:2px;background:var(--text);transition:transform .28s var(--ease)}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.burger[aria-expanded="true"] span{background:transparent}
.burger[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg)}

/* ----------------------------------------------------------- HERO (HOME) -- */
.hero{
  min-height:100vh;position:relative;display:flex;align-items:center;
  background:
    radial-gradient(ellipse 60% 50% at 70% 20%,rgba(129,140,248,.12),transparent),
    radial-gradient(ellipse 50% 40% at 20% 80%,rgba(34,211,238,.10),transparent),
    var(--bg);
}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.5;pointer-events:none}
.hero__content{
  position:relative;z-index:2;padding:132px 0 76px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:.78rem;color:var(--accent);
  border:1px solid var(--border);padding:6px 14px;border-radius:99px;
  margin-bottom:22px;background:rgba(34,211,238,.05);
}
.hero__tag::before{content:'';width:7px;height:7px;border-radius:50%;background:var(--green);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
.hero__title{font-size:clamp(2.4rem,5.6vw,4rem);line-height:1.06;font-weight:700;margin-bottom:16px;letter-spacing:-.02em}
.hero__typed{font-family:var(--font-mono);font-size:clamp(.95rem,2vw,1.2rem);color:var(--orange);min-height:1.8em;margin-bottom:18px}
.hero__typed .cursor{animation:blink .8s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.hero__sub{color:var(--muted);max-width:560px;font-size:1.02rem;margin-bottom:32px}
.hero__btns{display:flex;gap:14px;flex-wrap:wrap}

.hero__visual{position:relative}
.hero__frame{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--border);box-shadow:0 30px 80px rgba(0,0,0,.5)}
.hero__frame img{width:100%;height:440px;object-fit:cover}
.hero__frame::after{content:'';position:absolute;inset:0;background:linear-gradient(160deg,rgba(34,211,238,.15),transparent 40%,rgba(7,11,20,.55))}
.floatcard{
  position:absolute;background:rgba(15,23,41,.92);backdrop-filter:blur(10px);
  border:1px solid var(--border);border-radius:14px;padding:13px 18px;
  font-size:.8rem;color:var(--muted);z-index:3;animation:float 5s ease-in-out infinite;
}
.floatcard b{display:block;font-size:1.1rem;color:var(--accent);font-family:var(--font-display)}
.floatcard--1{top:24px;left:-40px}
.floatcard--2{bottom:34px;right:-30px;animation-delay:-2.5s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ------------------------------------------------------- HERO (INTERIOR) -- */
.phero{position:relative;padding:calc(var(--nav-h) + 92px) 0 72px;overflow:hidden;border-bottom:1px solid var(--border)}
.phero__bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.04)}
.phero__scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(7,11,20,.95) 0%,rgba(7,11,20,.78) 45%,rgba(7,11,20,.42) 100%),
    linear-gradient(180deg,rgba(7,11,20,.7) 0%,rgba(7,11,20,.25) 45%,rgba(7,11,20,.92) 100%);
}
.phero__inner{position:relative;z-index:2}
.phero__title{font-size:clamp(2rem,5vw,3.4rem);font-weight:700;letter-spacing:-.02em;margin:12px 0 18px}
.phero__lede{color:var(--muted);max-width:640px;font-size:1.05rem}

/* Breadcrumb */
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-family:var(--font-mono);font-size:.74rem;color:var(--dim);margin-bottom:6px}
.crumb a{color:var(--muted);transition:color .2s}
.crumb a:hover{color:var(--accent)}
.crumb span{color:var(--accent)}

/* -------------------------------------------------------- SECTION HEADS -- */
.sec-label{font-family:var(--font-mono);color:var(--accent);font-size:.82rem;letter-spacing:.15em;text-transform:uppercase;margin-bottom:10px}
.sec-title{font-size:clamp(1.7rem,3.5vw,2.5rem);font-weight:700;margin-bottom:14px;letter-spacing:-.015em}
.sec-sub{color:var(--muted);max-width:640px;margin-bottom:50px}
.sec-head{margin-bottom:50px}
.sec-head .sec-sub{margin-bottom:0}

/* --------------------------------------------------------------- REVEAL -- */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s ease}
.reveal.is-visible{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.09s}
.reveal[data-delay="2"]{transition-delay:.18s}
.reveal[data-delay="3"]{transition-delay:.27s}

/* -------------------------------------------------------------- BUTTONS -- */
.btn{
  padding:13px 26px;border-radius:10px;font-weight:600;font-size:.94rem;
  transition:transform .25s var(--ease),box-shadow .25s,border-color .25s,color .25s,background .25s;
  display:inline-flex;align-items:center;gap:8px;cursor:pointer;
}
.btn--primary{background:linear-gradient(120deg,var(--accent),var(--accent-deep));color:#04121a}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(34,211,238,.3)}
.btn--ghost{border:1px solid var(--border);color:var(--text)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ----------------------------------------------------------------- GRID -- */
.grid{display:grid;gap:22px}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}

/* ---------------------------------------------------------------- CARDS -- */
.card{
  background:var(--card);border:1px solid var(--border);border-radius:16px;
  padding:26px;transition:transform .3s var(--ease),border-color .3s,box-shadow .3s;
}
.card:hover{transform:translateY(-5px);border-color:var(--border-hi);box-shadow:0 16px 40px rgba(0,0,0,.35)}
.card__icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:1.3rem;margin-bottom:16px;
  background:linear-gradient(135deg,rgba(34,211,238,.15),rgba(129,140,248,.15));
  border:1px solid var(--border);
}
.card h3{font-size:1.05rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.93rem}

/* Image card — used for product/category tiles */
.icard{
  background:var(--card);border:1px solid var(--border);border-radius:18px;overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .35s var(--ease),border-color .35s,box-shadow .35s;
}
.icard:hover{transform:translateY(-6px);border-color:var(--border-hi);box-shadow:0 20px 50px rgba(0,0,0,.4)}
.icard__media{position:relative;height:200px;overflow:hidden;flex:none}
.icard__media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.icard:hover .icard__media img{transform:scale(1.07)}
.icard__media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(15,23,41,.85))}
.icard__code{
  position:absolute;top:14px;right:14px;z-index:2;font-family:var(--font-mono);font-size:.68rem;
  background:rgba(7,11,20,.82);border:1px solid var(--border);padding:4px 10px;border-radius:7px;color:var(--accent);
}
.icard__body{padding:22px 24px 24px;flex:1;display:flex;flex-direction:column}
.icard__body h3{font-size:1.1rem;margin-bottom:9px}
.icard__body p{color:var(--muted);font-size:.9rem;flex:1;margin-bottom:16px}
.icard__more{
  font-family:var(--font-mono);font-size:.76rem;color:var(--accent);
  display:inline-flex;align-items:center;gap:7px;margin-top:auto;
}
.icard__more svg{transition:transform .25s var(--ease)}
.icard:hover .icard__more svg{transform:translateX(4px)}

/* ----------------------------------------------------------------- TAGS -- */
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  font-family:var(--font-mono);font-size:.71rem;padding:5px 11px;border-radius:7px;
  background:rgba(148,163,184,.08);border:1px solid rgba(148,163,184,.12);color:var(--muted);
  transition:color .2s,border-color .2s;
}
.tag:hover{color:var(--accent);border-color:var(--border-hi)}

/* ---------------------------------------------------------------- STATS -- */
.statband{
  display:flex;border:1px solid var(--border);border-radius:16px;overflow:hidden;
  background:rgba(15,23,41,.5);backdrop-filter:blur(8px);
}
.stat{flex:1;text-align:center;padding:22px 12px;border-right:1px solid var(--border)}
.stat:last-child{border-right:none}
.stat b{display:block;font-family:var(--font-display);font-size:1.9rem;color:var(--accent);line-height:1.2}
.stat span{font-size:.79rem;color:var(--muted)}

/* -------------------------------------------------------------- PILLARS -- */
.pillar__media{position:relative;aspect-ratio:16/11;border-radius:14px;overflow:hidden;border:1px solid var(--border);margin-bottom:18px}
.pillar__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.pillar:hover .pillar__media img{transform:scale(1.06)}
.pillar__media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 42%,rgba(7,10,9,.72))}
.pillar__idx{position:absolute;left:16px;bottom:13px;z-index:2;font-family:var(--font-mono);font-size:.78rem;color:var(--accent)}
.pillar h3{font-family:var(--font-display);font-weight:600;font-size:1.4rem;margin-bottom:8px}
.pillar p{color:var(--muted);font-size:.94rem}

/* ----------------------------------------------------------- BLEED BAND -- */
.bleed{position:relative;overflow:hidden;padding:120px 0;border-block:1px solid var(--border)}
.bleed__bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.05)}
.bleed__scrim{position:absolute;inset:0;background:radial-gradient(circle at 50% 55%,rgba(7,11,20,.6),rgba(7,11,20,.95) 92%)}
.bleed__inner{position:relative;z-index:2;text-align:center;max-width:820px;margin:0 auto}
.bleed__inner h2{font-size:clamp(1.8rem,4.6vw,2.9rem);font-weight:700;line-height:1.1;margin:14px 0 18px}
.bleed__inner p{color:var(--muted);max-width:600px;margin:0 auto;font-size:1.04rem}
.bleed__btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px}

/* ------------------------------------------------------------- TIMELINE -- */
.timeline{position:relative;max-width:820px}
.timeline::before{content:'';position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--accent),var(--accent2),transparent)}
.t-item{position:relative;padding:0 0 44px 46px}
.t-item:last-child{padding-bottom:0}
.t-item::before{content:'';position:absolute;left:0;top:6px;width:20px;height:20px;border-radius:50%;background:var(--bg);border:3px solid var(--accent)}
.t-item__date{font-family:var(--font-mono);font-size:.76rem;color:var(--orange);margin-bottom:6px}
.t-item h3{font-size:1.13rem}
.t-item h4{font-size:.88rem;color:var(--accent);font-weight:500;margin:3px 0 12px;font-family:var(--font-body)}
.t-item ul{list-style:none;color:var(--muted);font-size:.92rem}
.t-item ul li{padding:4px 0 4px 22px;position:relative}
.t-item ul li::before{content:'\203A';position:absolute;left:4px;color:var(--accent)}

/* --------------------------------------------------------- ACHIEVEMENTS -- */
.ach{
  background:linear-gradient(160deg,var(--card),var(--card2));
  border:1px solid var(--border);border-radius:16px;padding:28px;
  transition:transform .3s var(--ease),border-color .3s;
}
.ach:hover{transform:translateY(-5px);border-color:rgba(251,146,60,.5)}
.ach__num{font-family:var(--font-display);font-size:2.1rem;font-weight:700;line-height:1;margin-bottom:10px;background:linear-gradient(120deg,var(--orange),var(--accent));-webkit-background-clip:text;background-clip:text;color:transparent}
.ach h3{font-size:1.03rem;margin-bottom:8px}
.ach__where{font-size:.76rem;color:var(--orange);font-family:var(--font-mono);margin-bottom:10px}
.ach p{color:var(--muted);font-size:.87rem}

/* ----------------------------------------------------------- LEADERSHIP -- */
.lead{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:28px;transition:transform .3s var(--ease),border-color .3s}
.lead:hover{border-color:rgba(129,140,248,.5);transform:translateY(-4px)}
.lead__role{font-size:1.08rem;font-weight:600;font-family:var(--font-display)}
.lead__org{color:var(--accent2);font-size:.84rem;margin:4px 0 6px}
.lead__when{font-family:var(--font-mono);font-size:.72rem;color:var(--dim);margin-bottom:14px}
.lead ul{list-style:none;color:var(--muted);font-size:.87rem}
.lead ul li{padding:4px 0 4px 20px;position:relative}
.lead ul li::before{content:'\203A';position:absolute;left:2px;color:var(--accent2)}

/* ------------------------------------------------------- PRODUCT DETAIL -- */
.highlights{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px;margin-bottom:58px}
.highlight{border:1px solid var(--border);border-radius:14px;padding:24px;background:rgba(15,23,41,.5);text-align:center}
.highlight b{display:block;font-family:var(--font-display);font-size:1.7rem;font-weight:700;background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.highlight span{font-size:.8rem;color:var(--muted)}

/* Tabbed detail panels — Overview / Features / Specs / Applications / Process */
.tabs{border:1px solid var(--border);border-radius:18px;overflow:hidden;background:var(--card)}
.tabs__list{display:flex;overflow-x:auto;border-bottom:1px solid var(--border);background:rgba(7,11,20,.5);scrollbar-width:none}
.tabs__list::-webkit-scrollbar{display:none}
.tab{
  flex:none;padding:16px 24px;font-family:var(--font-mono);font-size:.78rem;
  letter-spacing:.08em;text-transform:uppercase;color:var(--dim);white-space:nowrap;
  border-bottom:2px solid transparent;transition:color .22s,border-color .22s,background .22s;
}
.tab:hover{color:var(--muted);background:rgba(34,211,238,.04)}
.tab[aria-selected="true"]{color:var(--accent);border-bottom-color:var(--accent);background:rgba(34,211,238,.06)}
.tabs__panel{padding:38px 34px}
.tabs__panel[hidden]{display:none}
.tabs__panel>p{color:var(--muted);margin-bottom:18px;max-width:78ch}
.tabs__panel>p:last-child{margin-bottom:0}

.feature{border-left:2px solid rgba(34,211,238,.35);padding:2px 0 2px 20px;margin-bottom:26px}
.feature:last-child{margin-bottom:0}
.feature h4{font-size:1rem;margin-bottom:6px}
.feature p{color:var(--muted);font-size:.92rem}

.specs{width:100%;border-collapse:collapse}
.specs tr{border-bottom:1px solid var(--border)}
.specs tr:last-child{border-bottom:none}
.specs th{
  text-align:left;padding:14px 20px 14px 0;width:38%;vertical-align:top;
  font-family:var(--font-mono);font-size:.76rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--accent);font-weight:400;
}
.specs td{padding:14px 0;color:var(--muted);font-size:.93rem}

.applist{list-style:none}
.applist li{padding:12px 0 12px 30px;position:relative;color:var(--muted);border-bottom:1px solid var(--border)}
.applist li:last-child{border-bottom:none}
.applist li::before{content:'\25B9';position:absolute;left:6px;color:var(--accent);font-size:1.1rem;line-height:1.5}

.steps{counter-reset:step;display:grid;gap:22px}
.step{position:relative;padding-left:58px;counter-increment:step}
.step::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:0;top:0;width:40px;height:40px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:.82rem;color:var(--accent);
  background:linear-gradient(135deg,rgba(34,211,238,.14),rgba(129,140,248,.14));
  border:1px solid var(--border);
}
.step h4{font-size:1rem;margin-bottom:6px;padding-top:9px}
.step p{color:var(--muted);font-size:.92rem}

/* Prev/next product pager */
.pager{display:flex;gap:16px;flex-wrap:wrap;justify-content:space-between;border-top:1px solid var(--border);padding-top:32px;margin-top:64px}
.pager a{display:flex;flex-direction:column;gap:4px;padding:16px 22px;border:1px solid var(--border);border-radius:12px;transition:border-color .25s,transform .25s var(--ease);min-width:230px}
.pager a:hover{border-color:var(--border-hi);transform:translateY(-3px)}
.pager span{font-family:var(--font-mono);font-size:.7rem;color:var(--dim);letter-spacing:.1em;text-transform:uppercase}
.pager b{font-family:var(--font-display);font-size:.97rem;font-weight:600;color:var(--text)}
.pager a:hover b{color:var(--accent)}
.pager .pager--next{text-align:right;margin-left:auto}

/* ------------------------------------------------------------- PRODUCTS -- */
.filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:38px}
.filter{
  font-family:var(--font-mono);font-size:.76rem;padding:8px 16px;border-radius:99px;
  border:1px solid var(--border);color:var(--muted);
  transition:color .2s,border-color .2s,background .2s;
}
.filter:hover{color:var(--accent);border-color:var(--border-hi)}
.filter[aria-pressed="true"]{color:var(--accent);border-color:var(--accent);background:rgba(34,211,238,.1)}
[data-hidden="true"]{display:none !important}
.empty{color:var(--dim);font-family:var(--font-mono);font-size:.88rem;padding:40px 0}

/* --------------------------------------------------------------- EVENTS -- */
.ev{display:grid;grid-template-columns:120px 1fr;gap:28px;padding:30px 0;border-top:1px solid var(--border)}
.ev:last-child{border-bottom:1px solid var(--border)}
.ev__date{text-align:center;border-right:1px solid var(--border);padding-right:20px}
.ev__day{display:block;font-family:var(--font-display);font-weight:700;font-size:2.5rem;color:var(--accent);line-height:1}
.ev__mon{display:block;font-family:var(--font-mono);font-size:.7rem;letter-spacing:.1em;color:var(--muted);margin-top:6px}
.ev__head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap}
.ev__head h3{font-family:var(--font-display);font-weight:600;font-size:1.3rem}
.ev__type{font-family:var(--font-mono);font-size:.66rem;letter-spacing:.1em;color:var(--accent);border:1px solid var(--border-hi);padding:3px 9px;border-radius:99px;text-transform:uppercase}
.ev__loc{font-family:var(--font-mono);font-size:.8rem;color:var(--dim);margin:8px 0 10px}
.ev__sum{color:var(--muted);max-width:680px;font-size:.95rem}

/* ----------------------------------------------------------------- FORM -- */
.form{display:flex;flex-direction:column;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.field input,.field textarea{
  background:var(--bg2);border:1px solid var(--border);border-radius:10px;
  padding:13px 15px;font-size:.97rem;transition:border-color .18s,box-shadow .18s;resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{color:var(--dim)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(34,211,238,.1)}
.field input[aria-invalid="true"],.field textarea[aria-invalid="true"]{border-color:#f87171}
.field__err{font-size:.79rem;color:#fca5a5;min-height:1.1em}
/* Honeypot — hidden from humans, irresistible to dumb bots. */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form__msg{font-family:var(--font-mono);font-size:.84rem;padding:13px 16px;border-radius:10px}
.form__msg--ok{color:var(--green);background:rgba(74,222,128,.09);border:1px solid rgba(74,222,128,.3)}
.form__msg--err{color:#fca5a5;background:rgba(248,113,113,.08);border:1px solid rgba(248,113,113,.3)}
.form .btn{align-self:flex-start}

.clink{display:flex;align-items:center;gap:12px;padding:16px 20px;background:var(--card);border:1px solid var(--border);border-radius:12px;font-size:.92rem;color:var(--muted);transition:border-color .25s,color .25s,transform .25s var(--ease)}
.clink:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-3px)}
.clink svg{flex:none;color:var(--accent)}

/* --------------------------------------------------------------- FOOTER -- */
.footer{border-top:1px solid var(--border);padding:64px 0 26px;background:linear-gradient(180deg,transparent,rgba(34,211,238,.03))}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1.3fr 1.3fr;gap:40px}
.footer__pitch{color:var(--muted);font-size:.9rem;margin-top:18px;max-width:330px}
.footer__col h4{font-family:var(--font-mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.footer__link{display:block;color:var(--muted);font-size:.89rem;padding:5px 0;transition:color .18s}
.footer__link:hover{color:var(--accent)}
.footer__addr{font-style:normal;color:var(--muted);font-size:.89rem;line-height:1.7;margin-bottom:12px}
.footer__base{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:48px;padding-top:24px;border-top:1px solid var(--border);color:var(--dim);font-size:.78rem;font-family:var(--font-mono)}
.footer__socials{display:flex;gap:18px}
.footer__socials .footer__link{padding:0}

/* ---------------------------------------------------------- BACK TO TOP -- */
.totop{
  position:fixed;right:22px;bottom:22px;z-index:90;width:46px;height:46px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(15,23,41,.9);backdrop-filter:blur(10px);border:1px solid var(--border);color:var(--accent);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .28s,transform .28s var(--ease),visibility .28s,border-color .25s;
}
.totop[data-show="true"]{opacity:1;visibility:visible;transform:none}
.totop:hover{border-color:var(--accent)}

/* ------------------------------------------------------------------ 404 -- */
.nf{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:120px 24px 80px}
.nf__code{font-family:var(--font-display);font-size:clamp(5rem,18vw,11rem);font-weight:700;line-height:1;background:linear-gradient(120deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.nf p{color:var(--muted);margin:14px auto 30px;max-width:460px}
.nf__btns{justify-content:center}

/* -------------------------------------------------------- MEDIA CLASSES --
   Background images live here rather than in style="" attributes so the CSP
   can forbid inline styles outright. Add a class here for any new image.  */
.bg-about{background-image:url('../img/bg-about.webp')}
.bg-cta{background-image:url('../img/bg-cta.webp')}
.bg-vision{background-image:url('../img/bg-vision.webp')}
.bg-products{background-image:url('../img/bg-products.webp')}
.bg-events{background-image:url('../img/bg-events.webp')}
.bg-contact{background-image:url('../img/bg-contact.webp')}
.bg-achievements{background-image:url('../img/bg-achievements.webp')}
.bg-xr{background-image:url('../img/cat-xr.webp')}
.bg-robotics{background-image:url('../img/cat-robotics.webp')}
.bg-spm{background-image:url('../img/cat-spm.webp')}
.bg-automation{background-image:url('../img/cat-automation.webp')}
.bg-aiml{background-image:url('../img/cat-aiml.webp')}
.bg-igv{background-image:url('../img/robo-igv.webp')}
.bg-swarm{background-image:url('../img/robo-swarm.webp')}
.bg-sem3{background-image:url('../img/robo-sem3.webp')}
.bg-vrc{background-image:url('../img/robo-vrc.webp')}
.bg-ndt{background-image:url('../img/robo-ndt.webp')}
.bg-rov{background-image:url('../img/robo-rov.webp')}

/* Serve the lighter 1280px crops to phones and tablets. */
@media (max-width:900px){
  .bg-about{background-image:url('../img/bg-about-1280.webp')}
  .bg-cta{background-image:url('../img/bg-cta-1280.webp')}
  .bg-vision{background-image:url('../img/bg-vision-1280.webp')}
  .bg-products{background-image:url('../img/bg-products-1280.webp')}
  .bg-events{background-image:url('../img/bg-events-1280.webp')}
  .bg-contact{background-image:url('../img/bg-contact-1280.webp')}
  .bg-achievements{background-image:url('../img/bg-achievements-1280.webp')}
}

/* ----------------------------------------------------------- RESPONSIVE -- */
@media (max-width:980px){
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:900px){
  section{padding:72px 0}
  .hero__content{grid-template-columns:1fr;padding:118px 0 64px}
  .hero__visual{max-width:520px}
  .floatcard--1{left:-8px}
  .floatcard--2{right:-8px}
  .statband{flex-wrap:wrap}
  .stat{flex:1 1 45%;border-bottom:1px solid var(--border)}
  .tabs__panel{padding:30px 24px}

  /* Nav collapses to a slide-in drawer.
     NOTE: .nav carries backdrop-filter, which makes it a containing block for
     fixed-position descendants. So the drawer is positioned against .nav, not
     the viewport — hence top:100% plus an explicit height rather than
     top/bottom offsets, which would collapse it to nothing. */
  .burger{display:flex}
  .nav__links{
    position:fixed;top:100%;right:0;
    height:calc(100vh - var(--nav-h));
    height:calc(100dvh - var(--nav-h));
    width:min(320px,86vw);
    background:rgba(11,17,32,.98);backdrop-filter:blur(16px);
    flex-direction:column;align-items:stretch;gap:2px;
    padding:24px 20px;overflow-y:auto;
    border-left:1px solid var(--border);
    transform:translateX(105%);transition:transform .32s var(--ease);
  }
  .nav__links[data-open="true"]{transform:none}
  .nav__link,.nav__toggle{width:100%;padding:13px 14px;font-size:.95rem}
  .nav__toggle{justify-content:space-between}
  .nav__cta{margin:14px 0 0;text-align:center;padding:13px 18px}
  .nav__menu{
    position:static;opacity:1;visibility:visible;transform:none;
    background:none;border:none;box-shadow:none;padding:2px 0 8px 12px;
    min-width:0;max-height:0;overflow:hidden;
    transition:max-height .32s var(--ease);
  }
  .nav__menu[data-open="true"]{max-height:420px}
}
@media (max-width:760px){
  .phero{padding:calc(var(--nav-h) + 64px) 0 56px}
  .ev{grid-template-columns:1fr;gap:14px}
  .ev__date{display:flex;gap:12px;align-items:baseline;border-right:none;border-bottom:1px solid var(--border);padding:0 0 12px;text-align:left}
  .ev__day{font-size:1.8rem}
  .specs th{width:auto;display:block;padding-bottom:4px}
  .specs td{display:block;padding-top:0;padding-bottom:14px}
  .pager a{min-width:0;flex:1 1 100%}
  .pager .pager--next{text-align:left;margin-left:0}
}
@media (max-width:560px){
  .container{padding:0 18px}
  .footer__grid{grid-template-columns:1fr}
  .hero__frame img{height:300px}
  .floatcard{font-size:.74rem;padding:10px 14px}
  .tabs__panel{padding:26px 18px}
  .bleed{padding:84px 0}
}

/* ------------------------------------------------- REDUCED MOTION / PRINT -- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
  .hero__canvas{display:none}
}
@media print{
  .nav,.totop,.progress,.hero__canvas,.bleed__bg{display:none}
  body{background:#fff;color:#000}
}