/* ===== EveryChain corporate site ===== */
:root {
  --bg: #07080c;
  --bg-2: #0b0d14;
  --panel: #0e1119;
  --panel-2: #12151f;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --txt: #e8eaf0;
  --txt-dim: #9aa1b3;
  --txt-mute: #6b7188;
  --mint: #5eead4;
  --blue: #6d8bff;
  --grad: linear-gradient(105deg, #5eead4 0%, #6d8bff 100%);
  --radius: 16px;
  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--txt);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5 { font-family: "Space Grotesk", sans-serif; line-height: 1.1; letter-spacing: -0.02em; }

a { color: inherit; text-decoration: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

.grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ===== Background ===== */
.bg-grid {
  position: fixed; inset: 0; z-index: -2;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 80%);
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 80%);
  opacity: 0.5;
}
.bg-glow {
  position: fixed; z-index: -1; top: -240px; left: 50%; transform: translateX(-50%);
  width: 900px; height: 700px;
  background: radial-gradient(closest-side, rgba(109,139,255,0.18), transparent 70%),
              radial-gradient(closest-side, rgba(94,234,212,0.12), transparent 70%);
  background-position: 30% 30%, 70% 40%;
  filter: blur(20px); pointer-events: none;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem; cursor: pointer;
  border: 1px solid transparent; transition: all 0.25s var(--ease);
  white-space: nowrap;
}
.btn--primary { background: var(--grad); color: #06121a; box-shadow: 0 8px 30px rgba(94,234,212,0.18); }
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(109,139,255,0.32); }
.btn--line { border-color: var(--line-2); color: var(--txt); }
.btn--line:hover { border-color: var(--mint); color: var(--mint); }
.btn--ghost { border-color: var(--line-2); padding: 9px 18px; font-size: 0.9rem; }
.btn--ghost:hover { border-color: var(--mint); color: var(--mint); }

/* ===== Nav ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(7,8,12,0.72);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand__mark { display: grid; place-items: center; }
.brand__name { font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: 1.2rem; letter-spacing: -0.01em; }
.brand__accent { color: var(--mint); }
.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a { color: var(--txt-dim); font-size: 0.94rem; font-weight: 500; transition: color 0.2s; }
.nav__links a:hover { color: var(--txt); }
.nav__links .btn { color: var(--txt); }
.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 22px; height: 2px; background: var(--txt); border-radius: 2px; transition: 0.3s; }

/* ===== Hero ===== */
.hero { position: relative; padding: 168px 0 90px; overflow: hidden; }
.hero__net { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: 0.7; }
.hero__inner { position: relative; z-index: 1; text-align: center; max-width: 860px; }
.pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 16px; border: 1px solid var(--line-2); border-radius: 999px;
  font-size: 0.84rem; color: var(--txt-dim); background: rgba(255,255,255,0.02);
  margin-bottom: 28px;
}
.pill__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 4px rgba(94,234,212,0.18); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero__title { font-size: clamp(2.6rem, 6vw, 4.6rem); font-weight: 700; }
.hero__lead { margin: 26px auto 0; max-width: 620px; color: var(--txt-dim); font-size: 1.12rem; }
.hero__cta { display: flex; gap: 14px; justify-content: center; margin-top: 36px; flex-wrap: wrap; }

.hero__stats { display: flex; gap: 48px; justify-content: center; margin-top: 64px; flex-wrap: wrap; }
.hero__stats dt { font-family: "Space Grotesk", sans-serif; font-size: 2.2rem; font-weight: 700; background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero__stats dd { color: var(--txt-mute); font-size: 0.9rem; margin-top: 4px; }

/* ===== Strip ===== */
.strip { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--bg-2); }
.strip__inner { display: flex; align-items: center; gap: 28px; padding: 22px 28px; flex-wrap: wrap; }
.strip__label { font-family: "JetBrains Mono", monospace; font-size: 0.78rem; color: var(--txt-mute); text-transform: uppercase; letter-spacing: 0.12em; }
.strip__chains { list-style: none; display: flex; gap: 28px; flex-wrap: wrap; }
.strip__chains li { color: var(--txt-dim); font-weight: 500; font-size: 0.98rem; opacity: 0.85; }

/* ===== Sections ===== */
.section { padding: 96px 0; }
.section--alt { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section__head { max-width: 660px; margin: 0 auto 56px; text-align: center; }
.section__head--left { margin-left: 0; text-align: left; }
.eyebrow { font-family: "JetBrains Mono", monospace; font-size: 0.78rem; color: var(--mint); text-transform: uppercase; letter-spacing: 0.14em; }
.section__head h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); font-weight: 700; margin: 14px 0 16px; }
.section__head p { color: var(--txt-dim); font-size: 1.05rem; }

/* ===== Cards ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 26px; transition: transform 0.3s var(--ease), border-color 0.3s, background 0.3s;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px;
  background: var(--grad); opacity: 0;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; transition: opacity 0.3s;
}
.card:hover { transform: translateY(-4px); background: var(--panel-2); }
.card:hover::before { opacity: 0.6; }
.card__icon { font-size: 1.5rem; width: 50px; height: 50px; display: grid; place-items: center; border-radius: 12px; background: rgba(109,139,255,0.1); color: var(--mint); margin-bottom: 18px; }
.card h3 { font-size: 1.18rem; margin-bottom: 10px; }
.card p { color: var(--txt-dim); font-size: 0.96rem; }

/* ===== Feature / Product ===== */
.feature {
  display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 50px; align-items: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 24px; padding: 38px;
}
.feature__media { position: relative; aspect-ratio: 16 / 11; border-radius: 16px; background: radial-gradient(circle at 50% 40%, rgba(109,139,255,0.16), transparent 70%), var(--bg); border: 1px solid var(--line); overflow: hidden; }
.feature__chip { position: absolute; top: 16px; left: 16px; z-index: 3; font-family: "JetBrains Mono", monospace; font-size: 0.72rem; padding: 5px 11px; border-radius: 999px; background: rgba(94,234,212,0.12); color: var(--mint); border: 1px solid rgba(94,234,212,0.3); }
.feature__viz { position: absolute; inset: 0; }
.feature__lines { position: absolute; inset: 0; width: 100%; height: 100%; }
.feature__lines path { stroke: rgba(109,139,255,0.4); stroke-width: 1.2; fill: none; }
.node { position: absolute; width: 12px; height: 12px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 16px rgba(94,234,212,0.6); animation: float 5s ease-in-out infinite; }
.node.n1 { top: 14%; left: 9%; } .node.n2 { top: 14%; right: 9%; animation-delay: .6s; }
.node.n3 { bottom: 14%; left: 9%; animation-delay: 1.2s; } .node.n4 { bottom: 14%; right: 9%; animation-delay: 1.8s; }
.node.n5 { top: 6%; left: 50%; transform: translateX(-50%); animation-delay: .9s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
.node.n5 { animation-name: floatc; }
@keyframes floatc { 0%,100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-7px); } }

.feature__body h3 { font-size: 2rem; }
.feature__tag { color: var(--mint); font-family: "JetBrains Mono", monospace; font-size: 0.85rem; margin: 6px 0 16px; }
.feature__body > p { color: var(--txt-dim); font-size: 1.04rem; }
.ticks { list-style: none; margin: 22px 0 26px; display: grid; gap: 11px; }
.ticks li { position: relative; padding-left: 28px; color: var(--txt-dim); font-size: 0.98rem; }
.ticks li::before { content: ""; position: absolute; left: 0; top: 7px; width: 14px; height: 14px; border-radius: 4px; background: var(--grad); }
.ticks li::after { content: ""; position: absolute; left: 4px; top: 9px; width: 4px; height: 7px; border-right: 2px solid #06121a; border-bottom: 2px solid #06121a; transform: rotate(42deg); }

/* ===== Approach / Steps ===== */
.approach { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 60px; align-items: start; }
.steps { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.steps li { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; transition: border-color 0.3s, transform 0.3s var(--ease); }
.steps li:hover { border-color: var(--line-2); transform: translateY(-3px); }
.steps__num { font-family: "JetBrains Mono", monospace; font-size: 0.85rem; color: var(--mint); }
.steps h4 { font-size: 1.18rem; margin: 12px 0 8px; }
.steps p { color: var(--txt-dim); font-size: 0.94rem; }

/* ===== Stack ===== */
.stack { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; max-width: 800px; margin: 0 auto; }
.stack li { padding: 11px 20px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel); color: var(--txt-dim); font-family: "JetBrains Mono", monospace; font-size: 0.88rem; transition: all 0.25s; }
.stack li:hover { border-color: var(--mint); color: var(--mint); transform: translateY(-2px); }

/* ===== CTA ===== */
.cta__inner { text-align: center; max-width: 720px; margin: 0 auto; background: linear-gradient(160deg, var(--panel), var(--bg)); border: 1px solid var(--line); border-radius: 28px; padding: 64px 40px; position: relative; overflow: hidden; }
.cta__inner::before { content: ""; position: absolute; top: -50%; left: 50%; transform: translateX(-50%); width: 600px; height: 400px; background: radial-gradient(closest-side, rgba(94,234,212,0.14), transparent 70%); }
.cta__inner h2 { font-size: clamp(1.9rem, 3.6vw, 2.6rem); position: relative; }
.cta__inner > p { color: var(--txt-dim); font-size: 1.08rem; margin: 16px auto 32px; max-width: 520px; position: relative; }
.cta__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; margin-top: 32px; }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--line); background: var(--bg-2); padding: 60px 0 30px; }
.footer__inner { display: grid; grid-template-columns: 1.3fr 2fr; gap: 40px; padding-bottom: 40px; }
.footer__brand p { color: var(--txt-mute); font-size: 0.94rem; margin-top: 12px; max-width: 280px; }
.footer__cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.footer__cols h5 { font-family: "JetBrains Mono", monospace; font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--txt-mute); margin-bottom: 14px; }
.footer__cols a { display: block; color: var(--txt-dim); font-size: 0.95rem; margin-bottom: 9px; transition: color 0.2s; }
.footer__cols a:hover { color: var(--mint); }
.footer__cols a { overflow-wrap: anywhere; }
.footer__bottom { display: flex; justify-content: space-between; padding-top: 26px; border-top: 1px solid var(--line); color: var(--txt-mute); font-size: 0.85rem; flex-wrap: wrap; gap: 10px; }
.footer__loc { font-family: "JetBrains Mono", monospace; }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .feature { grid-template-columns: 1fr; gap: 30px; }
  .approach { grid-template-columns: 1fr; gap: 36px; }
  .section__head--left { text-align: center; margin: 0 auto 40px; }
}
@media (max-width: 720px) {
  .nav__links { position: fixed; inset: 72px 0 auto 0; flex-direction: column; gap: 4px; background: rgba(7,8,12,0.97); backdrop-filter: blur(14px); padding: 20px 28px 30px; border-bottom: 1px solid var(--line); transform: translateY(-130%); transition: transform 0.35s var(--ease); align-items: stretch; }
  .nav__links.is-open { transform: none; }
  .nav__links a { padding: 12px 0; font-size: 1.05rem; }
  .nav__links .btn { justify-content: center; margin-top: 8px; }
  .nav__toggle { display: flex; }
  .nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
  .nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .cards { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero { padding-top: 130px; }
  .hero__stats { gap: 32px; }
  .feature { padding: 22px; }
  .footer__inner { grid-template-columns: 1fr; }
  .footer__cols { grid-template-columns: 1fr; gap: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation: none !important; }
  html { scroll-behavior: auto; }
}