/* ─────────────────────────────────────────────────────────────────
   x402 Agentic · main.css
   Shared across all pages — loaded via <link> in every HTML file
───────────────────────────────────────────────────────────────── */

/* ── RESET ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── DESIGN TOKENS ───────────────────────────────────────────────── */
:root {
  --bg:          #060D1A;
  --bg2:         #0B1628;
  --bg3:         #0F1E35;
  --teal:        #00FFC2;
  --teal-dim:    #00C99A;
  --blue:        #2B7FFF;
  --violet:      #7B61FF;
  --gold:        #F5C842;
  --red:         #FF5F57;
  --text:        #E8F4FD;
  --text-muted:  #7B9AB8;
  --text-dim:    #3D5A78;
  --border:      rgba(0,255,194,0.12);
  --border2:     rgba(255,255,255,0.07);
  --font-head:   'Sora', sans-serif;
  --font-mono:   'DM Mono', monospace;
  --radius:      12px;
  --nav-h:       64px;
  --max-w:       1140px;
}

/* ── BASE ─────────────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-head);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,255,194,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,194,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
}

body::after {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(123,97,255,0.1), transparent 60%);
}

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--teal-dim); border-radius: 10px; }
::selection { background: rgba(0,255,194,0.2); color: var(--teal); }

/* ── LAYOUT ───────────────────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}
section { position: relative; z-index: 1; }

/* ── TYPOGRAPHY ───────────────────────────────────────────────────── */
.section-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--teal);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.section-tag::before {
  content: '';
  width: 24px; height: 1px;
  background: var(--teal);
  flex-shrink: 0;
}
.section-h2 {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.12;
  margin-bottom: 14px;
}
.section-sub {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.7;
}

/* ── BUTTONS ──────────────────────────────────────────────────────── */
.btn-primary {
  background: var(--teal); color: var(--bg);
  font-family: var(--font-mono); font-size: 13px; font-weight: 500;
  padding: 12px 26px; border-radius: 8px;
  text-decoration: none; letter-spacing: 0.04em;
  display: inline-flex; align-items: center; gap: 8px;
  transition: all 0.25s; border: none; cursor: pointer; white-space: nowrap;
}
.btn-primary:hover {
  background: #20FFCF;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,255,194,0.3);
}
.btn-secondary {
  background: transparent; color: var(--text);
  font-family: var(--font-mono); font-size: 13px;
  padding: 12px 26px; border-radius: 8px;
  text-decoration: none; border: 1px solid var(--border2);
  letter-spacing: 0.04em; display: inline-flex; align-items: center; gap: 8px;
  transition: all 0.25s; cursor: pointer; white-space: nowrap;
}
.btn-secondary:hover {
  border-color: var(--teal); color: var(--teal);
  transform: translateY(-2px);
}

/* ── SCROLL REVEAL ─────────────────────────────────────────────── */
/* Default: VISIBLE. JS adds .js-ready to <body> first,            */
/* only then elements animate in. Guarantees content never hidden. */
.reveal {
  opacity: 1;
  transform: none;
}
.js-ready .reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.js-ready .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }


/* ── NAV ──────────────────────────────────────────────────────────── */
site-header {
  display: block;
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
}

.x-nav {
  background: rgba(6,13,26,0.9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border2);
  transition: border-color 0.3s;
}
.x-nav.scrolled { border-bottom-color: var(--border); }

.x-nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Logo */
.x-nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; flex-shrink: 0; margin-right: auto;
}
.x-nav-logo svg { width: 30px; height: 30px; flex-shrink: 0; }
.x-nav-logo-text {
  font-family: var(--font-mono);
  font-size: 15px; font-weight: 500;
  color: var(--text); letter-spacing: -0.01em;
  white-space: nowrap;
}
.x-nav-logo-text span { color: var(--teal); }

/* Desktop links */
.x-nav-links {
  display: flex; gap: 6px;
  list-style: none;
}
.x-nav-links a {
  font-size: 13px; color: var(--text-muted);
  text-decoration: none; font-family: var(--font-mono);
  letter-spacing: 0.02em; padding: 6px 12px;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
  white-space: nowrap;
}
.x-nav-links a:hover,
.x-nav-links a.active { color: var(--teal); background: rgba(0,255,194,0.06); }

/* Nav CTA */
.x-nav-cta {
  background: transparent; color: var(--teal);
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  padding: 7px 16px; border-radius: 6px;
  border: 1px solid rgba(0,255,194,0.35);
  text-decoration: none; letter-spacing: 0.04em;
  transition: all 0.2s; white-space: nowrap;
  margin-left: 8px;
}
.x-nav-cta:hover {
  background: rgba(0,255,194,0.1);
  border-color: var(--teal);
}

/* Hamburger */
.x-nav-toggle {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none; border: none;
  color: var(--teal); cursor: pointer;
  padding: 0; border-radius: 8px;
  transition: background 0.2s;
  flex-shrink: 0; margin-left: 8px;
}
.x-nav-toggle:hover { background: rgba(0,255,194,0.08); }
.x-nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  flex-shrink: 0;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
}
/* Hamburger → X animation */
.x-nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.x-nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.x-nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.x-nav-drawer {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: rgba(6,13,26,0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 20px 24px 28px;
  z-index: 999;
  transform: translateY(-8px);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.x-nav-drawer.open {
  display: block;
  transform: translateY(0);
  opacity: 1;
}
.x-nav-drawer ul {
  list-style: none;
  margin-bottom: 20px;
}
.x-nav-drawer a {
  display: block;
  font-family: var(--font-mono); font-size: 15px;
  color: var(--text-muted); text-decoration: none;
  padding: 12px 0;
  border-bottom: 1px solid var(--border2);
  transition: color 0.2s;
  letter-spacing: 0.02em;
}
.x-nav-drawer a:hover { color: var(--teal); }
.x-nav-drawer a.active { color: var(--teal); }
.x-nav-drawer .x-nav-cta {
  display: inline-flex; margin-top: 4px;
  width: 100%; justify-content: center;
}

/* Overlay behind drawer */
.x-nav-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
}
.x-nav-overlay.open { display: block; }

/* ── FOOTER ───────────────────────────────────────────────────────── */
site-footer { display: block; }

.x-footer {
  border-top: 1px solid var(--border2);
  background: var(--bg2);
  padding: 56px 0 32px;
  position: relative; z-index: 1;
}

.x-footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.x-footer-brand p {
  font-size: 13px; color: var(--text-muted);
  line-height: 1.7; margin-top: 14px;
  max-width: 260px;
}
.x-footer-protos {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: 16px;
}
.x-footer-proto {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--text-dim); background: var(--bg3);
  border: 1px solid var(--border2);
  padding: 3px 10px; border-radius: 20px;
}

.x-footer-col h4 {
  font-family: var(--font-mono); font-size: 10px;
  color: var(--text-dim); letter-spacing: 0.14em;
  text-transform: uppercase; margin-bottom: 16px;
}
.x-footer-col ul { list-style: none; }
.x-footer-col li { margin-bottom: 10px; }
.x-footer-col a {
  font-size: 13px; color: var(--text-muted);
  text-decoration: none; transition: color 0.2s;
}
.x-footer-col a:hover { color: var(--teal); }

.x-footer-bottom {
  display: flex; justify-content: space-between;
  align-items: center; flex-wrap: wrap; gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border2);
}
.x-footer-copy {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-dim); letter-spacing: 0.04em;
}
.x-footer-domain {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--teal); letter-spacing: 0.04em;
}
.x-footer-legal {
  display: flex; gap: 20px;
}
.x-footer-legal a {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-dim); text-decoration: none;
  transition: color 0.2s;
}
.x-footer-legal a:hover { color: var(--teal); }

/* ── PAGE BODY OFFSET ─────────────────────────────────────────────── */
.page-body { padding-top: var(--nav-h); }

/* ── ACCESSIBILITY ────────────────────────────────────────────────── */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); border: 0;
}
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ── RESPONSIVE ──────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .x-nav-links,
  .x-nav-cta { display: none !important; }
  .x-nav-toggle { display: flex; }
  .x-footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .x-footer-grid { grid-template-columns: 1fr; }
  .x-footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
  .section-h2 { font-size: 26px; }
}

/* ── FOOTER SOCIAL ROW ───────────────────────────────────────────── */
.x-footer-social {
  display: flex;
  gap: 14px;
  margin-top: 18px;
  flex-wrap: wrap;
}
.x-footer-social-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}
.x-footer-social-link:hover { color: var(--teal); }

/* ── MOBILE DRAWER SOCIAL ROW ────────────────────────────────────── */
.x-nav-drawer-social {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border2);
}
.x-nav-drawer-social a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
  border-bottom: none !important;
  padding: 0 !important;
  transition: color 0.2s;
}
.x-nav-drawer-social a:hover { color: var(--teal); }
