/* ============================================================
   ZK ENCRYPTION — Cyber Terminal / Proof-System Aesthetic
   Palette: deep black · phosphor green · violet accent · white
   Fonts: Syne (display) · Space Grotesk (body) · JetBrains Mono
   ============================================================ */

:root {
  --bg:       #040407;
  --bg2:      #08080e;
  --bg3:      #0d0d18;
  --green:    #00ff88;
  --green-dim:#00cc6a;
  --green-faint: rgba(0,255,136,0.07);
  --violet:   #7c3aed;
  --violet-light: #a78bfa;
  --white:    #f0eee8;
  --text-mid: #7a7890;
  --text-dim: #3a3850;
  --border:   rgba(0,255,136,0.12);
  --border-strong: rgba(0,255,136,0.25);
  --font-display: 'Syne', sans-serif;
  --font-body:    'Space Grotesk', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

/* MATRIX BACKGROUND */
.matrix-bg {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0.04;
}
.matrix-bg canvas { width: 100%; height: 100%; }

.vignette {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(4,4,7,0.85) 100%);
}

/* NAV */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; gap: 2rem;
  padding: 1.2rem 3rem;
  background: rgba(4,4,7,0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-logo { text-decoration: none; display: flex; align-items: baseline; gap: 1px; }
.logo-zk {
  font-family: var(--font-display); font-weight: 800;
  font-size: 1.3rem; color: var(--green);
  letter-spacing: -0.02em;
}
.logo-enc {
  font-family: var(--font-mono); font-size: 0.85rem;
  color: var(--text-mid); letter-spacing: 0.08em;
}

.nav-links {
  list-style: none; display: flex; gap: 2.5rem; margin-left: auto;
}
.nav-links a {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text-mid); text-decoration: none;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--green); }

.nav-cta {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--green); text-decoration: none;
  border: 1px solid var(--green);
  padding: 0.45rem 1rem;
  transition: all 0.2s;
}
.nav-cta:hover { background: var(--green); color: var(--bg); }
.cta-bracket { opacity: 0.5; }

/* HERO */
.hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 7rem 0 4rem;
  position: relative; z-index: 2;
}
.hero-container {
  max-width: 1100px; margin: 0 auto; padding: 0 3rem;
  width: 100%;
}

.hero-label {
  display: flex; align-items: center; gap: 0.8rem;
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--green-dim); margin-bottom: 2.5rem;
}
.label-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
  animation: blink 1.8s ease-in-out infinite;
}
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0.2; } }

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
  display: flex; flex-direction: column;
}
.ht-top {
  font-size: clamp(4rem, 9vw, 10rem);
  color: var(--white);
  animation: slideRight 0.7s cubic-bezier(0.22,1,0.36,1) 0.1s both;
}
.ht-mid {
  font-size: clamp(3rem, 7vw, 8rem);
  color: var(--green);
  text-shadow: 0 0 40px rgba(0,255,136,0.4);
  animation: slideRight 0.7s cubic-bezier(0.22,1,0.36,1) 0.3s both;
  position: relative;
}
.ht-mid-inner { position: relative; display: inline-block; }
.ht-bot {
  font-size: clamp(4rem, 9vw, 10rem);
  color: var(--white);
  animation: slideRight 0.7s cubic-bezier(0.22,1,0.36,1) 0.5s both;
}

@keyframes slideRight {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

.hero-desc {
  max-width: 580px;
  color: var(--text-mid); font-size: 1rem; line-height: 1.75;
  margin-bottom: 2.5rem;
  animation: fadeIn 0.7s ease 0.7s both;
}

.hero-btns {
  display: flex; gap: 1.5rem; align-items: center;
  animation: fadeIn 0.7s ease 0.9s both;
}

@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }

/* BUTTONS */
.btn-primary {
  background: var(--green); color: var(--bg);
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.14em; text-transform: uppercase;
  font-weight: 600; padding: 0.85rem 2.2rem;
  text-decoration: none; display: inline-block;
  transition: all 0.25s;
  box-shadow: 0 0 20px rgba(0,255,136,0.2);
}
.btn-primary:hover {
  background: #00ffaa;
  box-shadow: 0 0 35px rgba(0,255,136,0.45);
  transform: translateY(-2px);
}
.btn-primary.large { font-size: 13px; padding: 1rem 2.8rem; }

.btn-ghost {
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.12em; color: var(--text-mid);
  text-decoration: none;
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 2px; transition: color 0.2s, border-color 0.2s;
}
.btn-ghost:hover { color: var(--green); border-color: var(--green); }

/* ZK PROOF VISUAL */
.zk-proof-visual {
  display: flex; align-items: center; gap: 0;
  margin-top: 4rem;
  border: 1px solid var(--border);
  background: var(--bg2);
  max-width: 700px;
  overflow: hidden;
}

.proof-box {
  flex: 1; padding: 1.8rem 1.5rem;
  display: flex; flex-direction: column; gap: 0.4rem;
}
.proof-box.verifier { border-left: 1px solid var(--border); }

.pb-label {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--green);
}
.pb-sub {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-mid); font-style: italic;
}
.pb-value {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--text-mid);
  background: var(--bg3); padding: 0.3rem 0.6rem;
  border: 1px solid var(--border); margin-top: 0.3rem;
  display: inline-block;
}
.pb-value.verified { color: var(--green); border-color: var(--green); }

.proof-channel {
  display: flex; flex-direction: column; align-items: center;
  padding: 1.5rem 2rem; gap: 0.5rem;
  border-left: 1px solid var(--border);
  border-right: 1px solid var(--border);
  min-width: 140px;
}
.channel-line {
  display: flex; gap: 0.5rem; align-items: center;
}
.channel-packet {
  font-family: var(--font-mono); font-size: 1rem;
  color: var(--green); font-weight: 700;
  animation: packetMove 2s ease-in-out infinite;
  text-shadow: 0 0 10px var(--green);
}
.channel-packet.p1 { animation-delay: 0s; }
.channel-packet.p2 { animation-delay: 0.4s; }
.channel-packet.p3 { animation-delay: 0.8s; }
@keyframes packetMove {
  0%,100% { opacity: 0.3; transform: translateX(-4px); }
  50%      { opacity: 1;   transform: translateX(4px); }
}
.channel-label {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--text-dim);
}

/* SECTIONS */
.section { padding: 7rem 0; position: relative; z-index: 2; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 3rem; }

.dark-section { background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.mid-section { background: var(--bg); }
.proof-systems-section { background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.mono-label {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.2em; color: var(--green-dim);
  margin-bottom: 1.2rem; display: block;
}
.mono-label.center { text-align: center; }

h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(2rem, 4vw, 3.2rem);
  letter-spacing: -0.02em; line-height: 1.1;
  margin-bottom: 1.5rem;
}
.section-title { margin-bottom: 3rem; }
.center { text-align: center; }

/* SPLIT LAYOUT */
.split-layout {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 6rem; align-items: start;
}
.split-left p { color: var(--text-mid); margin-bottom: 1rem; }
.split-left em { color: var(--white); font-style: normal; }
.link-arrow {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.12em; color: var(--green-dim);
  text-decoration: none;
  display: inline-block; margin-top: 1rem;
  transition: color 0.2s;
}
.link-arrow:hover { color: var(--green); }

/* PROPERTY CARDS */
.property-cards { display: flex; flex-direction: column; gap: 1px; background: var(--border); border: 1px solid var(--border); }
.prop-card {
  background: var(--bg3); padding: 1.8rem 1.5rem;
  transition: background 0.25s;
}
.prop-card:hover { background: var(--green-faint); }
.prop-icon { color: var(--green); font-size: 1.2rem; display: block; margin-bottom: 0.5rem; }
.prop-card h4 {
  font-family: var(--font-display); font-size: 1.1rem;
  font-weight: 700; margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}
.prop-card p { color: var(--text-mid); font-size: 13px; }

/* APPLICATION GRID */
.app-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--border);
  border: 1px solid var(--border);
}
.app-card {
  background: var(--bg2); padding: 2.5rem 2rem;
  position: relative; overflow: hidden;
  transition: background 0.3s;
}
.app-card:hover { background: var(--bg3); }
.app-card.featured {
  background: var(--green-faint);
  border: 1px solid var(--border-strong);
}
.app-card.featured:hover { background: rgba(0,255,136,0.12); }

.ac-num {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.2em; color: var(--text-dim);
  position: absolute; top: 1.5rem; right: 1.5rem;
}
.ac-icon {
  font-size: 1.6rem; color: var(--green);
  display: block; margin-bottom: 1rem;
}
.app-card h3 {
  font-family: var(--font-display); font-size: 1.15rem;
  font-weight: 700; letter-spacing: -0.01em;
  margin-bottom: 0.8rem;
}
.app-card p { color: var(--text-mid); font-size: 13px; line-height: 1.65; margin-bottom: 1.2rem; }
.ac-tag {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--green-dim);
}

/* PROOF TABLE */
.proof-table {
  margin-top: 2rem;
  border: 1px solid var(--border);
  overflow: hidden;
}
.pt-header, .pt-row {
  display: grid; grid-template-columns: 2fr 1fr 1.2fr 2.5fr;
  gap: 0; align-items: center;
}
.pt-header {
  background: var(--bg3); padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.pt-header span {
  font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text-dim);
}
.pt-row {
  padding: 1rem 1.5rem; border-bottom: 1px solid var(--border);
  background: var(--bg2); transition: background 0.2s;
}
.pt-row:last-child { border-bottom: none; }
.pt-row:hover { background: var(--green-faint); }
.pt-name {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--white);
}
.pt-val {
  font-family: var(--font-mono); font-size: 11px;
}
.pt-val.good { color: var(--green); }
.pt-val.warn { color: #ffaa44; }
.pt-val.ok { color: var(--violet-light); }
.pt-desc { font-size: 13px; color: var(--text-mid); }

/* STATS BAR */
.stats-bar {
  background: var(--green); color: var(--bg);
  display: flex; align-items: stretch;
  position: relative; z-index: 2;
}
.sb-item {
  flex: 1; padding: 2.5rem 2rem;
  display: flex; flex-direction: column; gap: 0.4rem;
}
.sb-num {
  font-family: var(--font-display); font-size: 2.5rem;
  font-weight: 800; line-height: 1; letter-spacing: -0.03em;
}
.sb-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; opacity: 0.65; max-width: 160px; text-transform: uppercase; }
.sb-div { width: 1px; background: rgba(4,4,7,0.2); }

/* CTA */
.cta-section {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 6rem 0; position: relative; z-index: 2;
}
.cta-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 3rem;
}
.cta-text h2 { margin-bottom: 0.8rem; }
.cta-text p { color: var(--text-mid); max-width: 480px; }

/* PAGE HEADER */
.page-header {
  padding: 10rem 0 5rem;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  position: relative; z-index: 2;
}
.page-header h1 {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(2.8rem, 5.5vw, 5.5rem);
  letter-spacing: -0.03em; line-height: 1.0;
  max-width: 720px; margin-bottom: 1.5rem;
}
.page-header p { color: var(--text-mid); max-width: 580px; font-size: 1.05rem; line-height: 1.7; }

/* CONTENT BLOCKS */
.cb { padding: 4.5rem 0; border-bottom: 1px solid var(--border); }
.cb:last-child { border-bottom: none; }
.cb h2 { margin-bottom: 1.5rem; }
.cb p { color: var(--text-mid); max-width: 740px; margin-bottom: 1rem; }
.cb em { color: var(--white); font-style: italic; }

/* TECH ROWS */
.tech-rows { margin: 2rem 0; border: 1px solid var(--border); }
.tr-item {
  display: flex; gap: 2rem; align-items: flex-start;
  padding: 1.2rem 1.5rem; border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}
.tr-item:last-child { border-bottom: none; }
.tr-item:hover { background: var(--green-faint); }
.tr-tag {
  font-family: var(--font-mono); font-size: 10px;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--green-dim); white-space: nowrap; min-width: 160px;
  padding-top: 2px;
}
.tr-desc { color: var(--text-mid); font-size: 13.5px; }

/* ABOUT GRID */
.about-pillars { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); margin-top: 3rem; }
.ap-card { background: var(--bg2); padding: 2rem 1.8rem; transition: background 0.25s; }
.ap-card:hover { background: var(--green-faint); }
.ap-num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--green-dim); letter-spacing: 0.2em; display: block; margin-bottom: 0.8rem; }
.ap-card h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; margin-bottom: 0.6rem; }
.ap-card p { color: var(--text-mid); font-size: 13px; }

/* FORM */
.contact-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start; }
.form-group { margin-bottom: 1.5rem; }
.form-group label {
  display: block; font-family: var(--font-mono); font-size: 9px;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--text-dim); margin-bottom: 0.5rem;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  background: var(--bg2); border: 1px solid var(--border);
  color: var(--white); font-family: var(--font-mono); font-size: 12px;
  padding: 0.8rem 1rem; outline: none;
  transition: border-color 0.2s; appearance: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--green); box-shadow: 0 0 10px rgba(0,255,136,0.1); }
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select option { background: var(--bg2); }
.form-submit {
  background: var(--green); color: var(--bg);
  border: none; padding: 0.85rem 2.5rem;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.16em; text-transform: uppercase;
  cursor: pointer; transition: all 0.2s;
  font-weight: 600;
}
.form-submit:hover { background: #00ffaa; box-shadow: 0 0 20px rgba(0,255,136,0.35); }
.form-note { font-family: var(--font-mono); font-size: 10px; color: var(--text-dim); margin-top: 1rem; letter-spacing: 0.08em; }

/* SIDEBAR */
.contact-sidebar h3 { font-family: var(--font-display); font-weight: 700; font-size: 1.4rem; margin-bottom: 1.5rem; }
.side-list { list-style: none; border: 1px solid var(--border); }
.side-list li { padding: 1.2rem 1.5rem; border-bottom: 1px solid var(--border); }
.side-list li:last-child { border-bottom: none; }
.sl-tag { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--green-dim); display: block; margin-bottom: 0.4rem; }
.sl-desc { color: var(--text-mid); font-size: 13px; }

/* FOOTER */
.footer {
  background: #020204; padding: 4rem 0 2rem;
  position: relative; z-index: 2;
  border-top: 1px solid var(--border);
}
.footer-inner { display: flex; flex-direction: column; gap: 2rem; }
.footer-brand p { color: var(--text-dim); font-size: 12px; margin-top: 0.5rem; max-width: 320px; font-family: var(--font-mono); }
.footer-links { display: flex; gap: 2rem; }
.footer-links a { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-dim); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--green); }
.footer-copy { font-family: var(--font-mono); font-size: 10px; color: var(--text-dim); letter-spacing: 0.1em; border-top: 1px solid var(--border); padding-top: 1.5rem; }

/* DOMAIN SALE HERO TWEAKS */
.hero-desc strong { color: var(--green); font-weight: 600; }

/* RESPONSIVE */
@media (max-width: 960px) {
  .nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .hero-container { padding: 0 1.5rem; }
  .container { padding: 0 1.5rem; }
  .split-layout { grid-template-columns: 1fr; gap: 3rem; }
  .app-grid { grid-template-columns: repeat(2,1fr); }
  .stats-bar { flex-direction: column; }
  .sb-div { width: 100%; height: 1px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .contact-wrap { grid-template-columns: 1fr; gap: 3rem; }
  .about-pillars { grid-template-columns: repeat(2,1fr); }
  .pt-header, .pt-row { grid-template-columns: 1.5fr 1fr; }
  .pt-header span:nth-child(n+3), .pt-row .pt-val:nth-child(n+3), .pt-row .pt-desc { display: none; }
  .zk-proof-visual { max-width: 100%; }
}
@media (max-width: 600px) {
  .app-grid { grid-template-columns: 1fr; }
  .about-pillars { grid-template-columns: 1fr; }
  .hero-title .ht-top, .hero-title .ht-bot { font-size: 3.5rem; }
  .hero-title .ht-mid { font-size: 3rem; }
}