/* Trustcore — home page styles
   hero · coverflow stack · five-phase quantum bridge · signals · cta
   premium, dark, refined-cyan accent. */

/* ============================================================
   HERO — pinned, scroll-driven intro (NRG-style)
   ============================================================ */
.hero-scroll { position: relative; }
.hero-pin {
  position: sticky;
  top: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero-stage { width: 100%; }
.hero-content { text-align: left; max-width: 820px; position: relative; z-index: 2; }
.hero-title {
  display: flex;
  flex-direction: column;
  margin-top: 22px;
  font-size: clamp(52px, 8vw, 104px);
  line-height: 0.95;
  letter-spacing: -0.035em;
  font-weight: 400;
}
.hero-title .hline { display: block; }
.hero-title b { font-weight: 400; color: var(--accent); font-style: normal; }
.hero-rule {
  display: block;
  height: 1px;
  width: min(420px, 60%);
  margin: 30px 0;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform-origin: left;
  transform: scaleX(1);
}
.hero-content .lede {
  margin-top: 4px;
  font-size: clamp(16px, 1.4vw, 19px);
  max-width: 54ch;
  color: #aeb9c8;
}
.hero-cta { margin-top: 36px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero-meta {
  margin-top: 48px;
  border-top: 1px solid var(--line);
  padding-top: 22px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 760px;
}
.hero-meta span { display: flex; flex-direction: column; gap: 4px; }
.hero-meta strong {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 400;
  color: var(--fg);
  letter-spacing: -0.01em;
}
.hero-meta small {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--fg-mute);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
@media (max-width: 720px) { .hero-meta { grid-template-columns: repeat(2, 1fr); } }

/* phase progress rail + scroll hint */
.hero-progress {
  position: absolute;
  left: var(--pad);
  bottom: 36px;
  z-index: 3;
  display: flex;
  gap: 8px;
}
.hp-pip {
  width: 34px; height: 3px;
  background: var(--line-strong);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.hp-pip::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--accent);
  transform-origin: left;
  transform: scaleX(var(--f, 0));
}
.hero-scrollhint {
  position: absolute;
  right: var(--pad);
  bottom: 32px;
  z-index: 3;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-mute);
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-scrollhint i {
  display: block;
  width: 1px; height: 34px;
  background: linear-gradient(180deg, var(--fg-mute), transparent);
}
@media (max-width: 700px) { .hero-scrollhint { display: none; } }

/* animated initial states — only when JS enables the choreography */
.hero-scroll[data-hero-anim="on"] .hero-content [data-h],
.hero-scroll[data-hero-anim="on"] .hero-rule { will-change: opacity, transform; }
/* headline + eyebrow rise in on load — opacity stays 1 so they can never get
   stuck invisible if the animation engine is throttled */
.hero-scroll[data-hero-anim="on"] [data-h="eyebrow"] { animation: heroRise .7s cubic-bezier(.16,1,.3,1) .05s both; }
.hero-scroll[data-hero-anim="on"] [data-h="l1"] { animation: heroRise .8s cubic-bezier(.16,1,.3,1) .10s both; }
.hero-scroll[data-hero-anim="on"] [data-h="l2"] { animation: heroRise .8s cubic-bezier(.16,1,.3,1) .20s both; }
.hero-scroll[data-hero-anim="on"] [data-h="l3"] { animation: heroRise .8s cubic-bezier(.16,1,.3,1) .30s both; }
@keyframes heroRise { from { transform: translateY(30px); } to { transform: none; } }

/* supporting content waits for scroll */
.hero-scroll[data-hero-anim="on"] [data-h="lede"],
.hero-scroll[data-hero-anim="on"] [data-h="cta"],
.hero-scroll[data-hero-anim="on"] [data-h="meta"] { opacity: 0; }
.hero-scroll[data-hero-anim="on"] .hero-rule { transform: scaleX(0); opacity: 0; }

@media (prefers-reduced-motion: reduce) {
  .hero-scroll { height: auto !important; }
  .hero-pin { position: relative; height: auto; padding: clamp(72px,10vw,120px) 0; }
  .hero-progress, .hero-scrollhint { display: none; }
}

/* ============================================================
   COVERFLOW STACK — smooth, continuous, auto-rotating
   ============================================================ */
.stack {
  padding: clamp(40px, 5vw, 64px) 0 clamp(44px, 5vw, 68px);
  border-top: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.stack-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.stack-head h2 {
  font-size: clamp(30px, 3.6vw, 46px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -0.025em;
}
.stack-head p {
  margin: 10px 0 0;
  color: var(--fg-dim);
  font-size: 14.5px;
  max-width: 42ch;
}

.coverflow {
  position: relative;
  height: 480px;
  margin: 0 calc(var(--pad) * -1);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  perspective: 1600px;
  cursor: grab;
}
.coverflow.is-grabbing { cursor: grabbing; }
.cf-card {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 290px;
  height: 400px;
  margin: -200px 0 0 -145px;
  border-radius: 14px;
  background: linear-gradient(180deg, var(--bg-1), var(--bg-2));
  border: 1px solid var(--line);
  box-shadow: 0 24px 50px rgba(0,0,0,0.45);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  will-change: transform, opacity;
  transform-style: preserve-3d;
  transition: border-color .25s, box-shadow .25s;
  backface-visibility: hidden;
}
.cf-card.is-center { border-color: var(--accent-line); box-shadow: 0 30px 60px rgba(0,0,0,0.55), 0 0 0 1px var(--accent-line) inset; }
.cf-card.is-center .cf-name { color: var(--accent); }
.cf-vis {
  flex: 1;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background: var(--bg-1);
}
.cf-vis img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.cf-vis::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 58%, rgba(8,11,16,0.55));
}
.cf-meta { padding: 14px 16px 16px; }
.cf-name {
  font-family: var(--display);
  font-size: 20px;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--fg);
  transition: color .25s;
}
.cf-tag {
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fg-mute);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* per-card visuals (CSS only, accent-driven) */
.vis-grid {
  background-image:
    linear-gradient(rgba(61,255,133,0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(61,255,133,0.16) 1px, transparent 1px),
    linear-gradient(180deg, rgba(61,255,133,0.12), rgba(61,255,133,0.02)),
    var(--bg-1);
  background-size: 16px 16px, 16px 16px, 100%, 100%;
}
.vis-orbit { background: linear-gradient(180deg, rgba(61,255,133,0.1), rgba(61,255,133,0.02)), var(--bg-1); }
.vis-orbit::before, .vis-orbit::after {
  content: "";
  position: absolute; left: 50%; top: 50%;
  border: 1px solid var(--accent-line);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.vis-orbit::before { width: 140px; height: 80px; opacity: 0.8; }
.vis-orbit::after  { width: 80px; height: 140px; opacity: 0.5; transform: translate(-50%,-50%) rotate(58deg); }
.vis-book { background: linear-gradient(180deg, rgba(61,255,133,0.08), rgba(61,255,133,0.01)), var(--bg-1); }
.vis-book::before, .vis-book::after {
  content: "";
  position: absolute; top: 34px; bottom: 34px;
  width: 50px;
  border: 1px solid var(--accent-line);
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(61,255,133,0.1), transparent);
}
.vis-book::before { left: calc(50% - 56px); transform: rotate(-4deg); }
.vis-book::after  { left: calc(50% + 4px); transform: rotate(4deg); }
.vis-feed {
  background:
    repeating-linear-gradient(180deg, transparent 0 12px, rgba(61,255,133,0.14) 12px 13px),
    linear-gradient(180deg, rgba(61,255,133,0.08), rgba(61,255,133,0.01)),
    var(--bg-1);
}
.vis-pulse { background: linear-gradient(180deg, rgba(61,255,133,0.1), rgba(61,255,133,0.02)), var(--bg-1); }
.vis-pulse::before {
  content: "";
  position: absolute; left: 50%; top: 50%;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent);
  transform: translate(-50%, -50%);
  animation: cfPulse 2.4s ease-out infinite;
}
@keyframes cfPulse {
  0% { box-shadow: 0 0 0 0 rgba(61,255,133,0.5), 0 0 16px var(--accent); }
  100% { box-shadow: 0 0 0 56px rgba(61,255,133,0), 0 0 0 var(--accent); }
}

.cf-dots {
  display: flex;
  gap: 7px;
  justify-content: center;
  margin-top: 26px;
}
.cf-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--line-strong);
  transition: background .25s, transform .25s;
  cursor: pointer;
}
.cf-dot.active { background: var(--accent); transform: scale(1.35); }

@media (max-width: 720px) {
  .coverflow { height: 320px; }
  .cf-card { width: 190px; height: 250px; margin: -125px 0 0 -95px; }
}

/* ============================================================
   SOFTWARE CATEGORIES
   ============================================================ */
.cats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
@media (max-width: 900px) { .cats { grid-template-columns: 1fr; } }
.cats a {
  background: var(--bg);
  padding: 48px 36px;
  display: flex; flex-direction: column; gap: 14px;
  min-height: 256px;
  transition: background .25s;
  position: relative;
  overflow: hidden;
}
.cats a::before {
  content: "";
  position: absolute; left: 0; top: 0;
  width: 100%; height: 1px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .5s cubic-bezier(.16,1,.3,1);
}
.cats a:hover { background: var(--bg-1); }
.cats a:hover::before { transform: scaleX(1); }
.cats a:hover h3 { color: var(--accent); }
.cats .num { font-family: var(--mono); font-size: 11px; color: var(--fg-mute); letter-spacing: 0.16em; }
.cats h3 {
  font-size: 28px; font-weight: 400; letter-spacing: -0.02em;
  color: var(--fg); margin: 6px 0 0; transition: color .25s;
}
.cats p { color: var(--fg-dim); font-size: 14.5px; line-height: 1.55; max-width: 38ch; margin: 0; }
.cats .arrow { margin-top: auto; font-family: var(--mono); font-size: 12px; color: var(--accent); letter-spacing: 0.06em; }

/* ============================================================
   QUANTUM BRIDGE — five-phase scrollytelling (NRG-style)
   ============================================================ */
.bridge { position: relative; background: linear-gradient(180deg, var(--bg), #0b0f14 50%, var(--bg)); }
.bridge-scroll { position: relative; }            /* tall scroll track */
.bridge-pin {
  position: sticky;
  top: 0;
  height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.bridge-grid {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
}
@media (max-width: 768px) { .bridge-grid { grid-template-columns: 1fr; gap: 32px; } }

/* --- left: phase rail + copy --- */
.bridge-left { position: relative; }
.bridge-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 10px;
}
.bridge-eyebrow::before { content: ""; width: 16px; height: 1px; background: var(--accent); }

.phase-rail {
  display: flex;
  gap: 14px;
  margin: 26px 0 30px;
}
.phase-pip {
  flex: 1;
  height: 3px;
  background: var(--line-strong);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
.phase-pip::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .5s cubic-bezier(.16,1,.3,1);
}
.phase-pip.done::after { transform: scaleX(1); }
.phase-pip.active::after { transform: scaleX(var(--pp, 0.4)); transition: transform .15s linear; }

.bridge-num {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--fg-mute);
  letter-spacing: 0.16em;
}
.bridge-num b { color: var(--accent); font-weight: 500; }

.bridge-stage-text { position: relative; min-height: 230px; margin-top: 16px; }
.phase-copy {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s cubic-bezier(.16,1,.3,1), transform .5s cubic-bezier(.16,1,.3,1);
  pointer-events: none;
}
.phase-copy.is-on { opacity: 1; transform: none; pointer-events: auto; }
.phase-copy h2 {
  font-size: clamp(30px, 3.4vw, 44px);
  font-weight: 400;
  line-height: 1.03;
  letter-spacing: -0.025em;
}
.phase-copy h2 b { color: var(--accent); font-weight: 400; }
.phase-copy p {
  margin-top: 16px;
  color: var(--fg-dim);
  font-size: 15.5px;
  line-height: 1.6;
  max-width: 44ch;
}

/* --- right: the diagram that builds --- */
.bridge-diagram {
  position: relative;
  height: 420px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background:
    radial-gradient(ellipse 70% 60% at 50% 45%, rgba(61,255,133,0.05), transparent 70%),
    linear-gradient(180deg, var(--bg-1), #0c1015);
  overflow: hidden;
}
.bridge-diagram::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 38px 38px;
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000, transparent 78%);
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000, transparent 78%);
  pointer-events: none;
}
.bridge-diagram .corner {
  position: absolute; width: 18px; height: 18px;
  border: 1px solid var(--accent-line);
  opacity: 0.6;
}
.bridge-diagram .corner.tl { top: 12px; left: 12px; border-right: 0; border-bottom: 0; }
.bridge-diagram .corner.tr { top: 12px; right: 12px; border-left: 0; border-bottom: 0; }
.bridge-diagram .corner.bl { bottom: 12px; left: 12px; border-right: 0; border-top: 0; }
.bridge-diagram .corner.br { bottom: 12px; right: 12px; border-left: 0; border-top: 0; }
.bridge-diagram .dlabel {
  position: absolute; top: 16px; left: 18px;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-mute);
}

/* animated image reveal pipeline */
.bridge-diagram img.bridge-bg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0.15;
  filter: grayscale(100%);
}
.bridge-diagram img.bridge-reveal {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
  -webkit-mask-image: linear-gradient(90deg, #000 calc(var(--bridge-prog, 0) * 100%), transparent calc(var(--bridge-prog, 0) * 100% + 5%));
  mask-image: linear-gradient(90deg, #000 calc(var(--bridge-prog, 0) * 100%), transparent calc(var(--bridge-prog, 0) * 100% + 5%));
}
.laser-scan {
  position: absolute;
  top: 0; bottom: 0;
  width: 2px;
  background: var(--accent);
  box-shadow: 0 0 24px 4px var(--accent);
  left: calc(var(--bridge-prog, 0) * 100%);
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.4s;
}
.bridge-scroll .laser-scan {
  opacity: 1;
}

@media (max-width: 980px) {
  .bridge-diagram { height: 320px; }
}

/* ============================================================
   SIGNALS
   ============================================================ */
.signals { padding: clamp(56px, 7vw, 96px) 0; }
.signals .grid-2 { gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.signal-col { background: var(--bg); }
.signal-head {
  padding: 16px 22px; border-bottom: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.16em;
  display: flex; align-items: center; justify-content: space-between;
}
.signal-head .label { color: var(--accent); display: flex; gap: 10px; align-items: center; }
.signal-head .label::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 8px var(--accent);
}
.signal-head .meta { color: var(--fg-mute); }
.signal-col.crypto .signal-head .label { color: var(--ok); }
.signal-col.crypto .signal-head .label::before { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.signal-col ul { list-style: none; padding: 0; margin: 0; }
.signal-col li {
  padding: 16px 22px; border-bottom: 1px solid var(--line);
  display: grid; grid-template-columns: 64px 1fr; gap: 18px;
  align-items: baseline; transition: background .15s;
}
.signal-col li:last-child { border-bottom: 0; }
.signal-col li:hover { background: var(--bg-1); }
.signal-col li .t { font-family: var(--mono); font-size: 11px; color: var(--fg-mute); }
.signal-col li .h { font-size: 15px; line-height: 1.4; color: var(--fg); }
.signal-col li .src {
  font-family: var(--mono); font-size: 10px; color: var(--fg-mute);
  letter-spacing: 0.06em; text-transform: uppercase; margin-top: 4px; display: block;
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.endcta {
  padding: clamp(64px, 8vw, 112px) 0;
  border-top: 1px solid var(--line);
  text-align: center;
}
.endcta h2 {
  font-size: clamp(34px, 5vw, 60px);
  font-weight: 400; line-height: 1.0;
  letter-spacing: -0.025em;
  max-width: 18ch; margin: 0 auto;
}
.endcta h2 b { color: var(--accent); font-weight: 400; }
.endcta .lede { margin: 22px auto 0; max-width: 52ch; }
.endcta-cta { margin-top: 32px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }