/* ============================================================
   HOLOGUARD — industrial anti-counterfeit security label
   white & steel · guilloche · void mesh · hazard stripes
   ============================================================ */

:root {
  /* palette */
  --paper:    #f4f6f8;   /* label stock white */
  --paper-2:  #e7ecf0;   /* steel tint */
  --ink:      #10161d;   /* near-black ink */
  --ink-soft: #3c4a59;   /* muted steel ink */
  --line:     #c3ccd6;   /* hairline */
  --steel:    #5a6b7d;   /* steel accent */
  --holo-a:   #00b3a4;   /* holographic teal */
  --holo-b:   #6b4dff;   /* holographic violet */
  --holo-c:   #ff3d8b;   /* holographic magenta */
  --valid:    #0f9d58;   /* VALID green */
  --void:     #d61f3a;   /* VOID red */
  --hazard:   #f2c200;   /* hazard yellow */

  --font-disp: "Archivo", system-ui, sans-serif;
  --font-mono: "Spline Sans Mono", ui-monospace, "Cascadia Code", monospace;
  --font-bar:  "Libre Barcode 39 Text", var(--font-mono);

  --maxw: 1140px;
  --r: 4px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-mono);
  color: var(--ink);
  background:
    /* faint guilloche-ish microgrid over steel paper */
    repeating-linear-gradient(0deg, rgba(90,107,125,.035) 0 1px, transparent 1px 4px),
    repeating-linear-gradient(90deg, rgba(90,107,125,.035) 0 1px, transparent 1px 4px),
    radial-gradient(circle at 20% -10%, #ffffff, var(--paper) 60%);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.ink-2 { color: var(--steel); }
.mono  { font-family: var(--font-mono); }
.small { font-size: .78rem; }

/* ---------- hazard stripes (signature texture) ---------- */
.hazard-strip {
  height: 12px;
  background: repeating-linear-gradient(
    -45deg,
    var(--hazard) 0 16px,
    var(--ink) 16px 32px
  );
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.25);
}

/* ============================ TOPBAR ============================ */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 1.4rem;
  padding: .7rem clamp(1rem, 4vw, 2.4rem);
  background: rgba(244,246,248,.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.wordmark {
  font-family: var(--font-disp);
  font-weight: 800;
  letter-spacing: .04em;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--ink);
  display: inline-flex; align-items: center; gap: .4rem;
}
.wordmark .reg { font-size: .6em; vertical-align: super; color: var(--steel); }
.seal-mark {
  color: var(--holo-a);
  background: linear-gradient(120deg, var(--holo-a), var(--holo-b), var(--holo-c));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 1.1em;
}
.nav { display: flex; gap: 1.2rem; margin-left: auto; flex-wrap: wrap; }
.nav a {
  color: var(--ink-soft); text-decoration: none;
  font-size: .82rem; letter-spacing: .03em;
  padding: .2rem 0; border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--ink); border-color: var(--holo-a); }

.btn-stamp {
  font-family: var(--font-disp); font-weight: 700;
  letter-spacing: .08em; font-size: .8rem;
  color: var(--paper); background: var(--ink);
  border: 2px solid var(--ink);
  padding: .55rem .9rem; border-radius: var(--r);
  text-decoration: none; white-space: nowrap;
  position: relative;
  box-shadow: 3px 3px 0 var(--steel);
  transition: transform .08s, box-shadow .08s;
}
.btn-stamp:hover { transform: translate(-1px,-1px); box-shadow: 4px 4px 0 var(--holo-b); }
.btn-stamp:active { transform: translate(2px,2px); box-shadow: 1px 1px 0 var(--steel); }
.btn-stamp.big { font-size: .95rem; padding: .8rem 1.3rem; }
.btn-ghost {
  font-family: var(--font-disp); font-weight: 600; letter-spacing: .04em;
  color: var(--ink); text-decoration: none; font-size: .9rem;
  padding: .8rem 1rem; border: 1px solid var(--line); border-radius: var(--r);
  background: #fff;
}
.btn-ghost:hover { border-color: var(--steel); }

/* ============================ HERO ============================ */
.hero {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(2.2rem, 6vw, 4.5rem) clamp(1rem,4vw,2.4rem);
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: clamp(1.5rem, 5vw, 3.5rem); align-items: center;
}
.kicker {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .74rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 1rem;
}
.kicker .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--valid);
  box-shadow: 0 0 0 3px rgba(15,157,88,.18);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.35} }

.hero h1 {
  font-family: var(--font-disp); font-weight: 800;
  font-size: clamp(2.6rem, 7vw, 4.3rem);
  line-height: .98; letter-spacing: -.02em; margin: 0 0 1rem;
  text-transform: uppercase;
}
.lede { font-size: 1.02rem; color: var(--ink-soft); max-width: 46ch; }
.hero-actions { display: flex; gap: .8rem; flex-wrap: wrap; margin: 1.6rem 0; align-items: center; }

.trust-row {
  list-style: none; display: flex; gap: 1.8rem; padding: 0; margin: 1.4rem 0 0;
  border-top: 1px dashed var(--line); padding-top: 1.1rem; flex-wrap: wrap;
}
.trust-row strong {
  display: block; font-family: var(--font-disp); font-weight: 800;
  font-size: 1.5rem; color: var(--ink);
}
.trust-row span { font-size: .72rem; letter-spacing: .04em; color: var(--ink-soft); text-transform: uppercase; }

/* ---------- THE SEAL (signature component) ---------- */
.seal-stage { display: flex; flex-direction: column; align-items: center; gap: .9rem; }

.seal-card {
  --pad: 22px;
  position: relative; width: min(360px, 86vw); aspect-ratio: 1 / 1.18;
  background:
    radial-gradient(circle at 30% 20%, #ffffff, var(--paper) 70%);
  border: 2px solid var(--ink);
  border-radius: 10px;
  padding: var(--pad);
  overflow: hidden; cursor: pointer;
  box-shadow: 0 18px 40px -22px rgba(16,22,29,.55), 0 2px 0 var(--steel);
  isolation: isolate;
}
/* guilloche micro-border drawn with conic + repeating gradients */
.seal-guilloche {
  position: absolute; inset: 6px; border-radius: 7px; pointer-events: none;
  border: 1.5px solid transparent;
  background:
    repeating-conic-gradient(from 0deg, rgba(107,77,255,.10) 0 6deg, transparent 6deg 12deg),
    repeating-radial-gradient(circle at 50% 50%, rgba(0,179,164,.10) 0 3px, transparent 3px 7px);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  padding: 14px;
}
.seal-card::before { /* hairline frame */
  content: ""; position: absolute; inset: 12px; border: 1px solid var(--line);
  border-radius: 5px; pointer-events: none;
}

/* latent VOID mesh — hidden until the seal goes void */
.seal-void {
  position: absolute; inset: 0; z-index: 4; pointer-events: none;
  display: grid; grid-template-columns: repeat(3, 1fr);
  align-content: center; justify-items: center; gap: 26px 10px;
  opacity: 0; transition: opacity .25s;
  background: rgba(214,31,58,.04);
}
.seal-void span {
  font-family: var(--font-disp); font-weight: 800; font-size: 1.4rem;
  letter-spacing: .1em; color: rgba(214,31,58,.28);
  transform: rotate(-18deg);
}
.seal-card.is-void .seal-void { opacity: 1; }

.seal-head {
  position: relative; z-index: 3;
  display: flex; align-items: center; gap: .55rem;
  margin-bottom: .9rem;
}
.seal-label {
  font-family: var(--font-disp); font-weight: 800; letter-spacing: .06em;
  font-size: .9rem;
}
.seal-holo {
  width: 30px; height: 30px; border-radius: 50%; flex: none;
  background: conic-gradient(from 0deg,
    var(--holo-a), var(--holo-b), var(--holo-c), var(--hazard), var(--holo-a));
  box-shadow: inset 0 0 0 3px rgba(255,255,255,.7), 0 0 0 1px var(--ink);
  animation: spin 6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* pseudo-QR */
.seal-qr {
  position: relative; z-index: 3;
  width: 116px; height: 116px; margin: .2rem auto .9rem;
  background: #fff; border: 2px solid var(--ink); border-radius: 4px;
  overflow: hidden;
}
.qr-grid {
  position: absolute; inset: 8px;
  background-image:
    linear-gradient(45deg, var(--ink) 25%, transparent 25% 50%, var(--ink) 50% 75%, transparent 75%),
    linear-gradient(-45deg, var(--ink) 25%, transparent 25% 50%, var(--ink) 50% 75%, transparent 75%);
  background-size: 12px 12px, 9px 9px;
  opacity: .9;
}
.qr-eye {
  position: absolute; width: 26px; height: 26px;
  border: 5px solid var(--ink); background:
    radial-gradient(var(--ink) 0 3px, #fff 3px);
}
.qr-eye.tl { top: 8px; left: 8px; }
.qr-eye.tr { top: 8px; right: 8px; }
.qr-eye.bl { bottom: 8px; left: 8px; }

.seal-meta { position: relative; z-index: 3; font-size: .72rem; }
.seal-meta .row {
  display: flex; justify-content: space-between; gap: .6rem;
  padding: .28rem 0; border-bottom: 1px dotted var(--line);
}
.seal-meta .row span { color: var(--ink-soft); letter-spacing: .08em; }
.seal-meta .row b { font-family: var(--font-mono); font-weight: 600; }

.seal-barcode {
  position: relative; z-index: 3;
  font-family: var(--font-bar); font-size: 2.1rem; line-height: 1;
  text-align: center; margin-top: .7rem; color: var(--ink);
  letter-spacing: .02em;
}

/* the stamp verdict */
.seal-stamp {
  position: absolute; z-index: 6; right: 14px; bottom: 14px;
  font-family: var(--font-disp); font-weight: 800; letter-spacing: .12em;
  font-size: 1.05rem; padding: .35rem .7rem;
  border: 3px solid var(--steel); color: var(--steel);
  border-radius: 6px; transform: rotate(-9deg);
  background: rgba(255,255,255,.55);
  transition: color .2s, border-color .2s, transform .2s;
}
.seal-stamp[data-state="verifying"] { animation: blink 0.7s steps(2) infinite; }
.seal-stamp[data-state="valid"] { color: var(--valid); border-color: var(--valid); transform: rotate(-9deg) scale(1.04); }
.seal-stamp[data-state="void"]  { color: var(--void);  border-color: var(--void); }
@keyframes blink { 50% { opacity: .35; } }

/* scanning sweep line */
.seal-card.is-scanning::after {
  content: ""; position: absolute; left: 0; right: 0; height: 40%;
  z-index: 5; pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(0,179,164,.30), transparent);
  animation: sweep 1.1s ease-in-out infinite;
}
@keyframes sweep { 0%{ top: -40%; } 100%{ top: 100%; } }

.seal-card.is-valid { box-shadow: 0 18px 40px -22px rgba(15,157,88,.55), 0 0 0 2px var(--valid); }
.seal-card.is-void  { box-shadow: 0 18px 40px -22px rgba(214,31,58,.55), 0 0 0 2px var(--void); }

.rescan {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .06em;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: .45rem .9rem; cursor: pointer; color: var(--ink);
}
.rescan:hover { border-color: var(--steel); }

/* ============================ BANDS ============================ */
.band { max-width: var(--maxw); margin: 0 auto; padding: clamp(2.5rem,6vw,4.5rem) clamp(1rem,4vw,2.4rem); }
.band.alt {
  max-width: none; background: #fff;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  position: relative;
}
.band.alt > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }

.sec-title {
  font-family: var(--font-disp); font-weight: 800; text-transform: uppercase;
  font-size: clamp(1.5rem, 3.5vw, 2.1rem); letter-spacing: -.01em;
  margin: 0 0 .3rem; display: flex; align-items: baseline; gap: .7rem;
}
.sec-title .num {
  font-size: .85rem; color: var(--paper); background: var(--ink);
  padding: .2rem .45rem; border-radius: var(--r); letter-spacing: .05em;
}
.sec-sub { color: var(--ink-soft); margin: 0 0 2rem; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.step {
  background: #fff; border: 1px solid var(--line); border-radius: 8px;
  padding: 1.2rem 1.1rem; position: relative;
  border-top: 4px solid var(--ink);
}
.step-no {
  font-family: var(--font-disp); font-weight: 800; font-size: 1.4rem;
  width: 40px; height: 40px; display: grid; place-items: center;
  border: 2px solid var(--ink); border-radius: 50%; margin-bottom: .8rem;
  color: var(--holo-b);
}
.step h3 { font-family: var(--font-disp); font-size: 1.02rem; margin: 0 0 .4rem; }
.step p { font-size: .86rem; color: var(--ink-soft); margin: 0; }

/* 3-up cards */
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.1rem; }
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: 8px;
  padding: 1.4rem 1.3rem; position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 5px;
  background: repeating-linear-gradient(-45deg, var(--hazard) 0 8px, var(--ink) 8px 16px);
}
.card-tag {
  font-family: var(--font-disp); font-weight: 700; font-size: .68rem;
  letter-spacing: .14em; color: var(--holo-b); display: inline-block;
  margin: .4rem 0 .5rem;
}
.card h3 { font-family: var(--font-disp); margin: 0 0 .5rem; font-size: 1.1rem; }
.card p { font-size: .88rem; color: var(--ink-soft); margin: 0; }

.stat-strip {
  display: grid; grid-template-columns: repeat(4,1fr); gap: 1px;
  margin-top: 1.6rem; background: var(--line);
  border: 1px solid var(--line); border-radius: 8px; overflow: hidden;
}
.stat-strip > div { background: #fff; padding: 1.1rem; text-align: center; }
.stat-strip b {
  display: block; font-family: var(--font-disp); font-weight: 800;
  font-size: 1.6rem; color: var(--ink);
}
.stat-strip span { font-size: .72rem; color: var(--ink-soft); letter-spacing: .03em; }

/* industries */
.industries { display: flex; flex-wrap: wrap; gap: .7rem; }
.industries span {
  font-family: var(--font-disp); font-weight: 600; font-size: .9rem;
  padding: .55rem 1rem; background: #fff; border: 1px solid var(--line);
  border-radius: 999px; position: relative;
}
.industries span::before {
  content: "◈"; color: var(--holo-a); margin-right: .45rem; font-size: .8em;
}
.industries span:hover { border-color: var(--steel); box-shadow: 2px 2px 0 var(--paper-2); }

/* SDK */
.sdk-wrap { display: grid; grid-template-columns: 1.3fr .85fr; gap: 1.4rem; align-items: start; }
.code {
  background: var(--ink); color: #e6edf3; border-radius: 8px;
  padding: 1.3rem 1.4rem; font-family: var(--font-mono); font-size: .82rem;
  line-height: 1.7; overflow-x: auto; margin: 0;
  border: 1px solid #000; box-shadow: 0 14px 30px -20px rgba(0,0,0,.6);
}
.code .cm { color: #6f8597; font-style: italic; }
.code .kw { color: var(--holo-c); }
.code .str { color: #6fd3c6; }
.code .fn { color: var(--hazard); }
.sdk-points { list-style: none; padding: 0; margin: 0; display: grid; gap: .9rem; }
.sdk-points li {
  font-size: .88rem; color: var(--ink-soft);
  padding-left: 1.4rem; position: relative;
}
.sdk-points li::before {
  content: "▸"; position: absolute; left: 0; color: var(--holo-a); font-weight: 700;
}
.sdk-points b { color: var(--ink); }

/* case studies */
.case {
  margin: 0; background: #fff; border: 1px solid var(--line); border-radius: 8px;
  padding: 1.3rem; border-left: 4px solid var(--holo-b);
}
.case-head {
  font-family: var(--font-disp); font-weight: 700; font-size: .76rem;
  letter-spacing: .06em; color: var(--steel); margin-bottom: .7rem;
  text-transform: uppercase;
}
.case blockquote { margin: 0 0 .8rem; font-size: .92rem; color: var(--ink); }
.case-by { font-size: .78rem; color: var(--ink-soft); }

/* ============================ CTA ============================ */
.cta {
  background:
    repeating-linear-gradient(-45deg, rgba(242,194,0,.06) 0 18px, transparent 18px 36px),
    var(--ink);
  color: var(--paper);
  border-top: 12px solid transparent;
  border-image: repeating-linear-gradient(-45deg, var(--hazard) 0 16px, #10161d 16px 32px) 12;
}
.cta-inner { max-width: 720px; margin: 0 auto; padding: clamp(2.5rem,6vw,4rem) 1.4rem; text-align: center; }
.cta h2 {
  font-family: var(--font-disp); font-weight: 800; text-transform: uppercase;
  font-size: clamp(1.7rem,4vw,2.6rem); margin: 0 0 .6rem; letter-spacing: -.01em;
}
.cta p { color: #b9c4cf; margin: 0 0 1.6rem; }
.cta-form { display: flex; gap: .6rem; justify-content: center; flex-wrap: wrap; }
.cta-form input {
  font-family: var(--font-mono); font-size: .92rem;
  padding: .75rem 1rem; border-radius: var(--r); border: 2px solid #2a3744;
  background: #0b1015; color: #fff; min-width: 260px;
}
.cta-form input:focus { outline: none; border-color: var(--holo-a); }
.cta-note { margin-top: 1rem; font-size: .8rem; color: #8595a3; letter-spacing: .03em; }

/* ============================ FOOTER ============================ */
.footer { background: var(--paper); padding: 2.6rem clamp(1rem,4vw,2.4rem) 1.4rem; }
.foot-cols {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 1.6rem;
}
.wordmark.sm { font-size: 1rem; }
.foot-blurb { font-size: .85rem; color: var(--ink-soft); max-width: 30ch; margin: .6rem 0 0; }
.foot-cols h4 {
  font-family: var(--font-disp); font-size: .78rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--steel); margin: 0 0 .7rem;
}
.foot-cols a { display: block; color: var(--ink-soft); text-decoration: none; font-size: .86rem; padding: .15rem 0; }
.foot-cols a:hover { color: var(--ink); }
.ok-line { font-size: .84rem; color: var(--ink-soft); display: flex; align-items: center; gap: .45rem; margin: 0 0 .4rem; }
.ok-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--valid); box-shadow: 0 0 0 3px rgba(15,157,88,.2); }

.foot-rule {
  max-width: var(--maxw); margin: 1.6rem auto 1rem; height: 1px;
  background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 12px);
}
.foot-bottom {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-size: .76rem; color: var(--ink-soft); letter-spacing: .03em;
}

/* ============================ RESPONSIVE ============================ */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .seal-stage { order: -1; }
  .steps { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: repeat(2,1fr); }
  .sdk-wrap { grid-template-columns: 1fr; }
  .foot-cols { grid-template-columns: 1fr 1fr; }
  .nav { display: none; }
}
@media (max-width: 540px) {
  .steps { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr 1fr; }
  .foot-cols { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2.7rem; }
}