:root{
  /* ---- LIGHT (default) — Optimus-inspired palette ---- */
  --bg:#faf9f7;
  --bg-2:#f3f1ec;
  --panel:#ffffff;
  --panel-2:#fbfaf8;
  --line:rgba(17,20,24,.09);
  --amber:#d97706;
  --amber-soft:rgba(217,119,6,.09);
  --cyan:#0e9488;
  --cyan-soft:rgba(14,148,136,.09);
  --text:#111418;
  --muted:#616b7a;
  --danger:#dc2626;
  --ok:#16a34a;
  --grid-line:rgba(17,20,24,.045);
  --nav-bg:rgba(250,249,247,.78);
  --terminal-bg:rgba(255,255,255,.9);
  --outline-stroke:rgba(17,20,24,.4);
  --card-shadow:0 24px 60px rgba(17,20,24,.09);
  --orb-a:rgba(217,119,6,.10);
  --orb-b:rgba(14,148,136,.08);
  --btn-primary-ink:#ffffff;
  /* sentinel bot — light */
  --bot-shell:#ccd6f0;
  --bot-shell-line:#94a3cf;
  --bot-visor:#2b3350;
  --bot-eye:#0e9488;
  --bot-accent:#d97706;
  --bot-thruster-base:#b3c0e6;
  --bot-shadow:drop-shadow(0 8px 18px rgba(17,20,24,.16));
  --font-display:'Space Grotesk',sans-serif;
  --font-body:'Inter',sans-serif;
  --font-mono:'IBM Plex Mono',monospace;
  --radius:14px;
}
[data-theme="dark"]{
  /* ---- DARK — original SOC palette ---- */
  --bg:#050a17;
  --bg-2:#081020;
  --panel:#0b1428;
  --panel-2:#0e1a33;
  --line:rgba(125,141,176,.16);
  --amber:#ffb020;
  --amber-soft:rgba(255,176,32,.12);
  --cyan:#3ddad7;
  --cyan-soft:rgba(61,218,215,.12);
  --text:#dce5f6;
  --muted:#8494b8;
  --danger:#ff5d5d;
  --ok:#4ade80;
  --grid-line:rgba(125,141,176,.05);
  --nav-bg:rgba(5,10,23,.72);
  --terminal-bg:rgba(8,16,32,.82);
  --outline-stroke:rgba(220,229,246,.55);
  --card-shadow:0 28px 70px rgba(0,0,0,.5);
  --orb-a:rgba(255,176,32,.07);
  --orb-b:rgba(61,218,215,.06);
  --btn-primary-ink:#0a0a0a;
  /* sentinel bot — dark */
  --bot-shell:#0e1a33;
  --bot-shell-line:#2a3a5f;
  --bot-visor:#050a17;
  --bot-eye:#3ddad7;
  --bot-accent:#ffb020;
  --bot-thruster-base:#1a2745;
  --bot-shadow:drop-shadow(0 8px 20px rgba(0,0,0,.5));
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  transition:background .35s ease,color .35s ease;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  overflow-x:hidden;
}
::selection{background:var(--amber);color:var(--btn-primary-ink)}
a{color:var(--cyan);text-decoration:none}
img{max-width:100%}

/* ambient grid backdrop */
.grid-bg{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:
    linear-gradient(var(--grid-line) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 20%,black 30%,transparent 100%);
}
.glow-orb{position:fixed;z-index:-1;border-radius:50%;filter:blur(120px);pointer-events:none;opacity:.5}
.glow-orb.a{width:520px;height:520px;background:var(--orb-a);top:-160px;right:-120px}
.glow-orb.b{width:460px;height:460px;background:var(--orb-b);bottom:-140px;left:-140px}

/* ============ NAV ============ */
nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px clamp(20px,5vw,56px);
  background:transparent;
  border-bottom:1px solid transparent;
  transition:padding .35s ease,background .35s ease,border-color .35s ease,box-shadow .35s ease,transform .35s ease;
}
nav.scrolled{
  padding:12px clamp(20px,5vw,56px);
  backdrop-filter:blur(16px) saturate(1.4);
  -webkit-backdrop-filter:blur(16px) saturate(1.4);
  background:var(--nav-bg);
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 40px rgba(17,20,24,.06);
}
[data-theme="dark"] nav.scrolled{box-shadow:0 10px 40px rgba(0,0,0,.35)}
nav.hidden{transform:translateY(-100%)}
.theme-toggle{
  width:36px;height:36px;border-radius:10px;cursor:pointer;
  background:transparent;border:1px solid var(--line);color:var(--text);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  transition:border-color .2s,transform .2s;
}
.theme-toggle:hover{border-color:var(--amber);transform:translateY(-2px)}
.nav-brand{font-family:var(--font-mono);font-size:14px;font-weight:600;color:var(--text);letter-spacing:.04em}
.nav-brand .dot{color:var(--amber)}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-family:var(--font-mono);font-size:12.5px;color:var(--muted);letter-spacing:.06em;transition:color .2s}
.nav-links a:hover{color:var(--amber)}
.nav-cta{
  font-family:var(--font-mono);font-size:12.5px;font-weight:600;
  color:var(--btn-primary-ink)!important;background:var(--amber);
  padding:8px 16px;border-radius:8px;transition:transform .2s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(217,119,6,.3);color:var(--btn-primary-ink)!important}
@media(max-width:760px){.nav-links a:not(.nav-cta){display:none}}

/* ============ HERO ============ */
.hero{
  position:relative;min-height:100vh;
  display:flex;flex-direction:column;justify-content:center;
  padding:130px clamp(20px,6vw,72px) 80px;
  overflow:hidden;
}
#globe-canvas{
  position:absolute;top:0;right:0;width:min(56vw,860px);height:100%;
  z-index:0;pointer-events:none;
  opacity:.9;
  mask-image:radial-gradient(ellipse 70% 70% at 60% 45%,black 40%,transparent 78%);
}
.hero-inner{position:relative;z-index:2;max-width:760px}
.terminal{
  font-family:var(--font-mono);font-size:13px;line-height:1.9;
  background:var(--terminal-bg);border:1px solid var(--line);
  border-radius:12px;padding:18px 22px;margin-bottom:34px;
  max-width:560px;backdrop-filter:blur(6px);
  box-shadow:0 20px 60px rgba(0,0,0,.45);
}
.terminal-bar{display:flex;gap:7px;margin-bottom:12px}
.terminal-bar span{width:10px;height:10px;border-radius:50%;background:var(--line)}
.terminal-bar span:first-child{background:var(--danger)}
.terminal-bar span:nth-child(2){background:var(--amber)}
.terminal-bar span:nth-child(3){background:var(--ok)}
.t-line{color:var(--muted);min-height:1.9em}
.t-line .prompt{color:var(--cyan)}
.t-line .ok{color:var(--ok)}
.t-line .amber{color:var(--amber)}
.cursor-blink{display:inline-block;width:8px;height:15px;background:var(--amber);vertical-align:-2px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.hero-eyebrow{
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.22em;
  color:var(--amber);text-transform:uppercase;margin-bottom:18px;
  display:flex;align-items:center;gap:10px;
}
.hero-eyebrow::before{content:'';width:34px;height:1px;background:var(--amber);flex-shrink:0}
.role-wrap{display:inline-flex;align-items:center}
.role-caret{
  display:inline-block;width:8px;height:1.05em;margin-left:1px;
  background:var(--amber);vertical-align:-2px;animation:blink 1s steps(1) infinite;
}
#role-type{min-height:1em}
h1{
  font-family:var(--font-display);
  font-size:clamp(40px,6.4vw,78px);
  font-weight:700;line-height:1.04;letter-spacing:-.02em;margin-bottom:22px;
}
h1 .accent{color:var(--amber)}
h1 .outline{
  color:transparent;
  -webkit-text-stroke:1.5px var(--outline-stroke);
}
.hero-sub{font-size:clamp(15.5px,1.6vw,18px);color:var(--muted);max-width:560px;margin-bottom:38px}
.hero-sub strong{color:var(--text);font-weight:600}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px}
.btn{
  font-family:var(--font-mono);font-size:13.5px;font-weight:600;letter-spacing:.03em;
  padding:14px 26px;border-radius:10px;display:inline-flex;align-items:center;gap:9px;
  transition:transform .2s,box-shadow .2s,background .2s;cursor:pointer;border:none;
}
.btn-primary{background:var(--amber);color:var(--btn-primary-ink)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 34px rgba(255,176,32,.4)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-3px)}
.hero-stats{display:flex;gap:clamp(28px,4.5vw,64px);flex-wrap:wrap}
.stat .num{
  font-family:var(--font-display);font-size:clamp(30px,3.4vw,44px);font-weight:700;
  color:var(--text);line-height:1;
}
.stat .num em{font-style:normal;color:var(--amber)}
.stat .lbl{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);letter-spacing:.12em;text-transform:uppercase;margin-top:7px}

/* ============ SECTIONS ============ */
section{padding:clamp(70px,9vw,120px) clamp(20px,6vw,72px);position:relative}
.section-head{max-width:1180px;margin:0 auto 54px}
.sec-eyebrow{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.22em;
  color:var(--cyan);text-transform:uppercase;margin-bottom:14px;
  display:flex;align-items:center;gap:10px;
}
.sec-eyebrow::before{content:'';width:26px;height:1px;background:var(--cyan)}
h2{font-family:var(--font-display);font-size:clamp(28px,3.6vw,44px);font-weight:700;letter-spacing:-.015em;line-height:1.12}
h2 .accent{color:var(--amber)}
.sec-desc{color:var(--muted);max-width:640px;margin-top:14px;font-size:15.5px}
.wrap{max-width:1180px;margin:0 auto}

/* ============ DOMAIN CARDS (3D tilt) ============ */
.domain-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:22px;perspective:1400px}
.card3d{
  background:linear-gradient(160deg,var(--panel) 0%,var(--panel-2) 100%);
  transition:background .35s ease;
  border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 28px;position:relative;overflow:hidden;
  transform-style:preserve-3d;
  transition:border-color .25s,box-shadow .25s;
  will-change:transform;
}
.card3d:hover{border-color:var(--amber);box-shadow:var(--card-shadow)}
.card3d .shine{
  position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(600px circle at var(--mx,50%) var(--my,50%),rgba(255,176,32,.09),transparent 42%);
}
.card3d:hover .shine{opacity:1}
.card-depth{transform:translateZ(36px)}
.dom-icon{
  width:46px;height:46px;border-radius:11px;
  background:var(--amber-soft);border:1px solid rgba(255,176,32,.3);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
  font-size:21px;
}
.card3d h3{font-family:var(--font-display);font-size:19px;font-weight:600;margin-bottom:12px}
.dom-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.dom-tags span{
  font-family:var(--font-mono);font-size:11px;color:var(--muted);
  border:1px solid var(--line);border-radius:6px;padding:4px 9px;
  transition:color .2s,border-color .2s;
}
.card3d:hover .dom-tags span{color:var(--text);border-color:rgba(125,141,176,.34)}
.card3d p{color:var(--muted);font-size:14px}
.dom-code{
  position:absolute;top:24px;right:26px;font-family:var(--font-mono);
  font-size:11px;color:rgba(125,141,176,.5);letter-spacing:.1em;
}

/* ============ CASE FILES ============ */
.cases{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.case-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:22px;perspective:1400px}
.case{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;position:relative;transform-style:preserve-3d;will-change:transform;
  transition:border-color .25s,box-shadow .25s;overflow:hidden;
}
.case:hover{border-color:var(--cyan);box-shadow:var(--card-shadow)}
.case .shine{position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(600px circle at var(--mx,50%) var(--my,50%),rgba(61,218,215,.08),transparent 42%)}
.case:hover .shine{opacity:1}
.case-no{
  font-family:var(--font-mono);font-size:12px;color:var(--cyan);
  letter-spacing:.16em;margin-bottom:14px;display:flex;align-items:center;gap:9px;
}
.case-no::after{content:'';flex:1;height:1px;background:var(--line)}
.case h3{font-family:var(--font-display);font-size:18.5px;font-weight:600;margin-bottom:10px;line-height:1.32}
.case p{color:var(--muted);font-size:14px;margin-bottom:16px}
.case .impact{
  font-family:var(--font-mono);font-size:12px;color:var(--amber);
  background:var(--amber-soft);border:1px solid rgba(255,176,32,.25);
  border-radius:7px;padding:7px 11px;display:inline-block;
}

/* ============ TESTIMONIAL ============ */
/* ---- testimonial carousel ---- */
.testi-carousel{max-width:820px;margin:0 auto;position:relative}
.testi-track{position:relative;overflow:hidden;perspective:1400px}
.testimonial-card{
  position:relative;
  background:linear-gradient(160deg,var(--panel) 0%,var(--panel-2) 100%);
  border:1px solid var(--line);border-radius:20px;
  padding:clamp(30px,4.5vw,50px);text-align:center;
  transform-style:preserve-3d;will-change:transform,opacity;
  transition:border-color .25s,box-shadow .3s,opacity .5s ease,transform .5s ease;
  overflow:hidden;
}
.testimonial-card:not(.active){
  position:absolute;inset:0;opacity:0;pointer-events:none;transform:translateX(40px) scale(.97);
}
.testimonial-card.active{opacity:1;transform:none;position:relative}
.testimonial-card:hover{border-color:var(--amber);box-shadow:var(--card-shadow)}
.testimonial-card .quote-mark{
  font-family:var(--font-display);font-size:80px;line-height:.5;color:var(--amber);
  opacity:.8;display:block;margin-bottom:10px;
}
.testimonial-card blockquote{
  font-family:var(--font-display);font-size:clamp(16px,1.9vw,20px);font-weight:500;
  line-height:1.6;color:var(--text);margin-bottom:30px;text-align:left;
}
.testi-author{display:flex;align-items:center;justify-content:flex-start;gap:15px}
.testi-avatar{
  width:52px;height:52px;border-radius:14px;flex-shrink:0;overflow:hidden;
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
}
.testi-avatar[data-bot-avatar="teal"]{background:var(--cyan-soft);border-color:var(--cyan)}
.testi-avatar[data-bot-avatar="amber"]{background:var(--amber-soft);border-color:var(--amber)}
.testi-avatar svg{width:40px;height:40px}
.testi-meta{text-align:left}
.testi-meta .name{font-family:var(--font-display);font-weight:600;font-size:16px}
.testi-meta .role{font-family:var(--font-mono);font-size:11.5px;color:var(--muted);margin-top:2px}
.testi-meta .rel{font-family:var(--font-mono);font-size:10.5px;color:var(--muted);opacity:.7;margin-top:3px;letter-spacing:.02em}
.testi-link{margin-top:24px;display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12.5px}
.testi-link:hover{text-decoration:underline}
.li-badge{
  display:inline-flex;align-items:center;gap:7px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--cyan);background:var(--cyan-soft);border:1px solid var(--cyan);
  border-radius:20px;padding:6px 14px;margin-bottom:20px;
}
.testi-nav{display:flex;align-items:center;justify-content:center;gap:18px;margin-top:28px}
.testi-arrow{
  width:40px;height:40px;border-radius:11px;cursor:pointer;
  background:var(--panel);border:1px solid var(--line);color:var(--text);
  font-size:16px;display:flex;align-items:center;justify-content:center;
  transition:border-color .2s,transform .2s,background .2s;
}
.testi-arrow:hover{border-color:var(--amber);color:var(--amber);transform:translateY(-2px)}
.testi-dots{display:flex;gap:9px}
.testi-dot{
  width:9px;height:9px;border-radius:50%;cursor:pointer;
  background:var(--line);border:none;transition:background .25s,transform .25s;
}
.testi-dot.active{background:var(--amber);transform:scale(1.25)}

/* ============ TIMELINE ============ */
.timeline{max-width:860px;margin:0 auto;position:relative;padding-left:34px}
.timeline::before{
  content:'';position:absolute;left:8px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(to bottom,var(--amber),rgba(61,218,215,.5),transparent);
}
.t-item{position:relative;padding-bottom:44px}
.t-item:last-child{padding-bottom:0}
.t-item::before{
  content:'';position:absolute;left:-32px;top:7px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2.5px solid var(--amber);
  box-shadow:0 0 0 5px var(--amber-soft);
}
.t-item .period{font-family:var(--font-mono);font-size:12px;color:var(--amber);letter-spacing:.1em;margin-bottom:6px}
.t-item h3{font-family:var(--font-display);font-size:19px;font-weight:600}
.t-item .company{font-family:var(--font-mono);font-size:13px;color:var(--cyan);margin:3px 0 10px}
.t-item p{color:var(--muted);font-size:14.5px;max-width:640px}

/* ============ CERT CAROUSEL ============ */
.certs{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}
.cert-row{display:flex;gap:18px;width:max-content;margin-bottom:18px}
.cert-row.rtl{animation:scrollL 46s linear infinite}
.cert-row.ltr{animation:scrollR 52s linear infinite}
.cert-row:hover{animation-play-state:paused}
@keyframes scrollL{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes scrollR{from{transform:translateX(-50%)}to{transform:translateX(0)}}
.cert-chip{
  display:flex;align-items:center;gap:14px;
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:14px 22px 14px 14px;white-space:nowrap;
  transition:border-color .2s,transform .2s;
}
a.cert-chip{color:var(--text)}
.cert-chip:hover{border-color:var(--amber);transform:translateY(-3px)}
.cert-mono{
  width:42px;height:42px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-weight:600;font-size:13px;color:#0a0a0a;
}
.cert-chip .c-name{font-family:var(--font-display);font-weight:600;font-size:14px}
.cert-chip .c-issuer{font-family:var(--font-mono);font-size:11px;color:var(--muted);letter-spacing:.06em}
.certs-cta{text-align:center;margin-top:38px}
.certs-cta a{font-family:var(--font-mono);font-size:13px}
.certs-cta a:hover{text-decoration:underline}

/* ============ CONTACT ============ */
.contact-inner{max-width:760px;margin:0 auto;text-align:center}
.contact-inner h2{margin-bottom:16px}
.contact-inner p{color:var(--muted);margin-bottom:38px}
.contact-links{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
footer{
  border-top:1px solid var(--line);padding:26px clamp(20px,6vw,72px);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  font-family:var(--font-mono);font-size:12px;color:var(--muted);
}
footer .status{display:flex;align-items:center;gap:8px}
footer .pulse{width:8px;height:8px;border-radius:50%;background:var(--ok);animation:pulse 2s infinite}
@keyframes pulse{50%{box-shadow:0 0 0 6px rgba(74,222,128,.15)}}

/* ============ SENTINEL BOT ============ */
#bot{
  position:fixed;left:0;top:0;z-index:200;width:74px;height:84px;
  pointer-events:none;will-change:transform;
  filter:var(--bot-shadow);
}
#bot .body-wrap{animation:bob 3.2s ease-in-out infinite;transform-origin:center}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
#bot-bubble{
  position:fixed;z-index:201;pointer-events:none;
  font-family:var(--font-mono);font-size:11.5px;line-height:1.5;color:var(--text);
  background:var(--panel-2);border:1px solid var(--amber);
  border-radius:10px 10px 10px 2px;padding:9px 13px;
  width:max-content;max-width:min(260px,60vw);
  opacity:0;transform:translateY(6px) scale(.94);
  transition:opacity .25s,transform .25s;
  box-shadow:var(--card-shadow);
}
#bot-bubble.show{opacity:1;transform:translateY(0) scale(1)}
#bot-bubble .b-ok{color:var(--ok)}
#bot-bubble .b-amber{color:var(--amber)}
@media(hover:none),(max-width:760px){#bot,#bot-bubble{display:none}}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
  #bot,#bot-bubble{display:none}
  #globe-canvas{display:none}
}