/* ==========================================================================
   Blue Shift Technology — bstedge.com
   Design system: editorial, full-bleed, typography-first. Minimal icons.
   Photography gets a brand duotone so it never reads as generic stock.
   ========================================================================== */

:root{
  --bg:#08090d;
  --bg-2:#0d1016;
  --bg-3:#12161f;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.18);
  --ink:#f3f5f9;
  --ink-2:#c6cddb;
  --muted:#94a0b3;
  --faint:#6a7488;
  --cyan:#22d3ee;
  --blue:#3b82f6;
  --violet:#7c3aed;
  --spectral:linear-gradient(90deg,#ff4d6d,#f59e0b,#7c3aed,#3b82f6,#22d3ee);
  --wrap:1240px;
  --gut:clamp(20px,5vw,64px);
  --mono:'Space Grotesk',ui-monospace,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  font-size:17px;line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.brand,.mono,.num{font-family:'Space Grotesk','Inter',sans-serif;letter-spacing:-.025em;line-height:1.08;font-weight:600}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
p{margin:0 0 1.15em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.measure{max-width:70ch}
.measure-sm{max-width:58ch}

/* thin brand line at very top — the only decorative flourish */
.spectral-bar{height:2px;background:var(--spectral);background-size:200% 100%;animation:slide 9s linear infinite;position:fixed;top:0;left:0;right:0;z-index:200}
@keyframes slide{to{background-position:200% 0}}

/* ---------------------------------------------------------------- header */
header{position:fixed;top:2px;left:0;right:0;z-index:150;transition:background .3s,border-color .3s}
header.scrolled{background:rgba(8,9,13,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:76px;max-width:var(--wrap);margin:0 auto;padding:0 var(--gut)}
.brand{display:flex;align-items:center;gap:12px}
.brand .mk{width:30px;height:30px;flex:none}
.brand .wm{display:block;font-family:'Space Grotesk',sans-serif;font-size:15.5px;font-weight:600;
  letter-spacing:.07em;line-height:1;color:var(--ink);white-space:nowrap}
.brand .wm small{display:block;font-family:'Inter',sans-serif;font-size:8.5px;font-weight:500;
  letter-spacing:.36em;color:var(--faint);margin-top:5px}
.brand:hover .mk{opacity:.85}
.navlinks{display:flex;gap:34px;align-items:center}
.navlinks>a,.dd>button{color:var(--muted);font-size:14.5px;font-weight:500;background:none;border:0;font-family:inherit;cursor:pointer;padding:0;transition:color .2s}
.navlinks>a:hover,.dd>button:hover,.navlinks>a.active{color:var(--ink)}

/* dropdown — right-anchored so wide menus open INTO the viewport, never off the right edge.
   max-height + scroll is a safety net so a tall menu can never be clipped by the fold. */
.dd{position:relative}
.dd>button::after{content:'';display:inline-block;width:5px;height:5px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin-left:7px;vertical-align:2px;transition:transform .2s}
.dd:hover>button::after,.dd:focus-within>button::after{transform:rotate(-135deg)}
.dd-menu{position:absolute;top:calc(100% + 14px);right:-14px;left:auto;width:300px;max-width:calc(100vw - 32px);
  max-height:calc(100svh - 104px);overflow-y:auto;overscroll-behavior:contain;
  background:#0f1219;border:1px solid var(--line);border-radius:12px;padding:8px;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:opacity .2s,transform .2s,visibility .2s;box-shadow:0 24px 60px rgba(0,0,0,.6)}
/* invisible bridge across the gap so hover doesn't drop between button and menu */
.dd-menu::before{content:'';position:absolute;top:-14px;left:0;right:0;height:14px}
.dd:hover .dd-menu,.dd:focus-within .dd-menu{opacity:1;visibility:visible;transform:none}
.dd-menu a{display:block;padding:10px 14px;border-radius:8px;color:var(--ink-2);font-size:14.5px;transition:.16s}
.dd-menu a:hover{background:rgba(255,255,255,.05);color:var(--cyan)}
.dd-menu a small{display:block;color:var(--faint);font-size:12px;margin-top:2px;line-height:1.4}

/* two-column mega-menu for the larger security list */
.dd-menu.cols{display:grid;grid-template-columns:1fr 1fr;width:min(640px,calc(100vw - 32px));column-gap:8px}
.dd-menu .dd-h{grid-column:1/-1;font-family:var(--mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--faint);padding:12px 14px 4px}
.dd-menu .dd-h:first-child{padding-top:8px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border:1px solid var(--line-2);border-radius:2px;font-weight:500;font-size:14.5px;font-family:inherit;cursor:pointer;transition:.25s;min-height:46px;background:transparent;color:var(--ink)}
.btn:hover{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn-solid{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn-solid:hover{background:transparent;color:var(--ink)}
.btn-line{border-color:var(--line-2);color:var(--ink-2)}

.hamburger{display:none;background:none;border:0;cursor:pointer;padding:10px;margin:-10px}
.hamburger span{display:block;width:24px;height:1.5px;background:var(--ink);margin:6px 0;transition:.3s}

/* ---------------------------------------------------------------- duotone photography */
.duo{position:relative;overflow:hidden;background:var(--bg-2);isolation:isolate}
.duo img{width:100%;height:100%;object-fit:cover;object-position:center;
  filter:grayscale(100%) contrast(112%) brightness(72%)}
.duo::after{content:'';position:absolute;inset:0;z-index:1;
  background:linear-gradient(145deg,#0a1a45 0%,#0b1330 45%,#0d3a4e 100%);
  mix-blend-mode:color;opacity:.92;pointer-events:none}
.duo::before{content:'';position:absolute;inset:0;z-index:2;
  background:linear-gradient(180deg,rgba(8,9,13,.30) 0%,rgba(8,9,13,.55) 55%,rgba(8,9,13,.92) 100%);
  pointer-events:none}
.duo>.on-photo{position:relative;z-index:3}

/* ---------------------------------------------------------------- hero (full screen) */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;padding:140px 0 72px}
.hero .bg{position:absolute;inset:0;z-index:0}
.hero .bg img{width:100%;height:100%;object-fit:cover}
.hero .wrap{position:relative;z-index:3;width:100%}
.hero h1{font-size:clamp(2.6rem,7vw,5.2rem);margin:0 0 26px;max-width:17ch;font-weight:600}
.hero .lede{font-size:clamp(1.08rem,2vw,1.35rem);color:var(--ink-2);max-width:62ch;margin:0 0 38px;line-height:1.6}
.hero .cta{display:flex;gap:14px;flex-wrap:wrap}
.hero .scroll{margin-top:64px;display:flex;gap:26px;flex-wrap:wrap;padding-top:26px;border-top:1px solid var(--line);
  font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint)}
.hero .scroll b{color:var(--ink-2);font-weight:500}

/* page hero (subpages) — shorter, photo band */
.phero{position:relative;min-height:62svh;display:flex;align-items:flex-end;padding:170px 0 60px}
.phero .bg{position:absolute;inset:0;z-index:0}
.phero .bg img{width:100%;height:100%;object-fit:cover}
.phero .wrap{position:relative;z-index:3;width:100%}
.phero h1{font-size:clamp(2.1rem,5.5vw,3.9rem);margin:0 0 20px;max-width:18ch}
.phero .lede{font-size:clamp(1.02rem,1.8vw,1.22rem);color:var(--ink-2);max-width:60ch;margin:0}
.crumb{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:22px}
.crumb a:hover{color:var(--cyan)}
.crumb span{color:var(--cyan)}

/* ---------------------------------------------------------------- sections */
section{padding:clamp(64px,9vw,120px) 0}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);margin:0 0 20px;display:block}
h2{font-size:clamp(1.8rem,4vw,2.9rem);margin:0 0 22px}
h3{font-size:clamp(1.3rem,2.4vw,1.75rem);margin:0 0 14px}
.lead{font-size:clamp(1.05rem,1.6vw,1.2rem);color:var(--muted);line-height:1.7}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* editorial 2-col: sticky label left, content right */
.ed{display:grid;grid-template-columns:280px 1fr;gap:clamp(30px,6vw,90px);align-items:start}
.ed .side{position:sticky;top:120px}
.ed .side .eyebrow{margin-bottom:12px}
.ed .side p{color:var(--faint);font-size:14.5px;margin:0}

/* numbered capability list — no icons */
.caps{border-top:1px solid var(--line)}
.cap{display:grid;grid-template-columns:80px 1fr;gap:clamp(20px,4vw,50px);padding:clamp(30px,4vw,48px) 0;border-bottom:1px solid var(--line);transition:background .3s}
.cap:hover{background:rgba(255,255,255,.018)}
.cap .num{font-family:var(--mono);font-size:14px;color:var(--cyan);letter-spacing:.08em;padding-top:6px}
.cap h3{margin:0 0 12px;font-size:clamp(1.25rem,2.2vw,1.6rem)}
.cap p{color:var(--muted);margin:0 0 18px;max-width:64ch}
.cap .more{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink);border-bottom:1px solid var(--line-2);padding-bottom:3px;transition:.2s;display:inline-block}
.cap .more:hover{color:var(--cyan);border-color:var(--cyan)}

/* spec list (dt/dd) — dense, technical */
.spec{margin:0;border-top:1px solid var(--line)}
.spec .r{display:grid;grid-template-columns:230px 1fr;gap:clamp(16px,3vw,40px);padding:22px 0;border-bottom:1px solid var(--line)}
.spec dt{font-family:var(--mono);font-size:13px;color:var(--cyan);letter-spacing:.04em;padding-top:3px}
.spec dd{margin:0;color:var(--ink-2);font-size:16px;line-height:1.65}

/* plain bullet list, readable */
.list{list-style:none;margin:0;padding:0;columns:2;column-gap:56px}
.list li{padding:11px 0 11px 20px;position:relative;color:var(--ink-2);font-size:15.5px;break-inside:avoid;border-bottom:1px solid var(--line)}
.list li::before{content:'';position:absolute;left:0;top:20px;width:6px;height:1px;background:var(--cyan)}
.list.one{columns:1}

/* process steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.steps .s{background:var(--bg);padding:28px 22px}
.steps .s b{font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:.1em;display:block;margin-bottom:12px}
.steps .s h4{margin:0 0 8px;font-size:1.05rem}
.steps .s p{margin:0;color:var(--muted);font-size:14px;line-height:1.6}
.steps.four{grid-template-columns:repeat(4,1fr)}
.steps.three{grid-template-columns:repeat(3,1fr)}

/* full-bleed image band */
.band{position:relative;height:min(60svh,520px)}
.band img{width:100%;height:100%;object-fit:cover}
.band .cap-txt{position:absolute;left:0;right:0;bottom:0;z-index:3;padding:0 var(--gut) 40px}
.band .cap-txt div{max-width:var(--wrap);margin:0 auto}
.band h2{max-width:20ch;margin:0}

/* pull quote / statement */
.statement{border-left:2px solid var(--cyan);padding-left:clamp(20px,3vw,36px)}
.statement p{font-family:'Space Grotesk',sans-serif;font-size:clamp(1.3rem,2.6vw,2rem);line-height:1.35;color:var(--ink);margin:0;letter-spacing:-.02em}

/* tags */
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-family:var(--mono);font-size:12px;color:var(--ink-2);padding:6px 12px;border:1px solid var(--line);letter-spacing:.03em}
.tag:hover{border-color:var(--cyan);color:var(--cyan)}

/* grid of cards (used sparingly) */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.grid3>div{background:var(--bg);padding:clamp(24px,3vw,36px)}
.grid3 .num{font-family:var(--mono);font-size:12px;color:var(--cyan);letter-spacing:.1em;display:block;margin-bottom:16px}
.grid3 h4{margin:0 0 10px;font-size:1.15rem}
.grid3 p{margin:0;color:var(--muted);font-size:15px}
.grid3 a.card-link{display:block;margin-top:14px;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink)}
.grid3 a.card-link:hover{color:var(--cyan)}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,60px);align-items:center}

/* CTA block */
.cta-block{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:clamp(56px,8vw,96px) 0}
.cta-block h2{max-width:18ch;margin:0 0 20px}
.cta-block p{color:var(--muted);max-width:56ch;margin:0 0 30px}

/* ---------------------------------------------------------------- forms */
form label{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin:0 0 8px}
form input,form textarea,form select{width:100%;padding:14px 16px;background:var(--bg-2);border:1px solid var(--line);color:var(--ink);font-family:inherit;font-size:16px;margin-bottom:20px;border-radius:2px;transition:border-color .2s}
form input:focus,form textarea:focus,form select:focus{outline:0;border-color:var(--cyan)}
form textarea{resize:vertical;min-height:150px}
form select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 49%,var(--faint) 50%),linear-gradient(135deg,var(--faint) 50%,transparent 51%);background-position:calc(100% - 20px) 55%,calc(100% - 15px) 55%;background-size:5px 5px;background-repeat:no-repeat}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-note{font-size:13.5px;color:var(--faint);margin-top:14px}

/* faq */
details{border-bottom:1px solid var(--line)}
summary{cursor:pointer;padding:22px 0;font-family:'Space Grotesk',sans-serif;font-size:1.08rem;font-weight:500;list-style:none;display:flex;justify-content:space-between;gap:20px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:'+';color:var(--cyan);font-size:1.4rem;font-weight:300;flex:none}
details[open] summary::after{content:'\2013'}
details p{color:var(--muted);margin:0 0 22px;max-width:70ch;font-size:16px}

/* ---------------------------------------------------------------- footer */
footer{border-top:1px solid var(--line);padding:clamp(50px,7vw,80px) 0 40px;background:var(--bg-2)}
.foot{display:grid;grid-template-columns:2.2fr 1fr 1fr 1fr;gap:clamp(28px,4vw,50px);margin-bottom:56px}
.foot.five{grid-template-columns:2fr 1fr 1fr 1fr 1fr}
.foot .about p{color:var(--muted);font-size:15px;max-width:34ch;margin:16px 0 0}
.foot h5{font-family:var(--mono);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--faint);margin:0 0 18px}
.foot a{display:block;color:var(--muted);font-size:15px;margin-bottom:11px;transition:color .2s}
.foot a:hover{color:var(--cyan)}
.foot-b{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:28px;border-top:1px solid var(--line);color:var(--faint);font-size:13.5px}
.foot-b .legal a{color:var(--faint);margin-left:18px}
.foot-b .legal a:hover{color:var(--cyan)}

/* Content is ALWAYS visible. Text must never depend on JavaScript to appear. */
.rev,.rev.in{opacity:1;transform:none}

/* ---------------------------------------------------------------- responsive
   NAV and CONTENT break at different widths on purpose:
   - Navigation collapses to the hamburger at 1024px, so every tablet (portrait
     and landscape) gets the touch-friendly accordion instead of a hover menu.
   - Content grids collapse independently at 1000 / 860 / 520 as the columns need it. */

/* ---- navigation: hamburger + full-screen panel on tablet and below ---- */
@media(max-width:1024px){
  .hamburger{display:block}
  .navlinks{position:fixed;inset:76px 0 auto 0;background:#0b0d13;flex-direction:column;align-items:stretch;
    gap:0;padding:8px var(--gut) 28px;border-bottom:1px solid var(--line);transform:translateY(-145%);
    transition:transform .35s ease;max-height:calc(100svh - 76px);overflow-y:auto;overscroll-behavior:contain}
  .navlinks.open{transform:none}
  .navlinks>a,.dd>button{padding:16px 2px;font-size:1.05rem;border-bottom:1px solid var(--line);width:100%;text-align:left}
  .dd>button::after{float:right;margin-top:8px}
  /* dropdowns become static accordions inside the panel; the panel itself scrolls */
  .dd-menu,.dd-menu.cols{position:static;display:block;width:auto;max-width:none;max-height:none;overflow:visible;
    opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;background:transparent;padding:2px 0 12px 12px}
  .dd-menu::before{display:none}
  .dd-menu a{padding:12px 2px;font-size:15px;color:var(--muted);border-radius:0}
  .dd-menu a small{display:none}
  .dd-menu .dd-h{padding:14px 0 2px}
  .navlinks .btn{margin-top:18px;width:100%}
}

/* ---- content grids ---- */
@media(max-width:1000px){
  .ed{grid-template-columns:1fr;gap:26px}
  .ed .side{position:static}
  .steps,.steps.four{grid-template-columns:1fr 1fr}
  .grid3{grid-template-columns:1fr}
  .list{columns:1}
  .spec .r{grid-template-columns:1fr;gap:6px}
}
@media(max-width:860px){
  body{font-size:16.5px}
  .grid2,.row2,.steps,.steps.four,.steps.three{grid-template-columns:1fr}
  .cap{grid-template-columns:1fr;gap:10px}
  .cap .num{padding-top:0}
  .foot,.foot.five{grid-template-columns:1fr 1fr}
  .hero{min-height:92svh;padding:120px 0 56px}
  .phero{min-height:52svh;padding:140px 0 48px}
  .band{height:44svh}
}
@media(max-width:520px){ .foot,.foot.five{grid-template-columns:1fr} .hero .cta .btn{width:100%} }
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rev{opacity:1;transform:none}}