/* S2Stools marketing site — page styles. Depends on s2s.css tokens. */

.shell { max-width: 1140px; margin: 0 auto; padding: 0 1.4rem; }

/* ---- Header ---------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--s2s-paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--s2s-line);
}
.site-header .shell {
  display: flex; align-items: center; gap: 2rem;
  height: 62px;
}
.site-nav { display: flex; gap: 1.4rem; margin-right: auto; }
.site-nav a { color: var(--s2s-ink-2); font-size: .92rem; font-weight: 500; }
.site-nav a:hover { color: var(--s2s-ink); text-decoration: none; }
.site-header-cta { display: flex; gap: .5rem; align-items: center; }

/* ---- Hero -------------------------------------------------------------------- */
.hero {
  background:
    linear-gradient(180deg, var(--s2s-paper) 0 62px, transparent 62px),
    repeating-linear-gradient(0deg,   var(--s2s-grid) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(90deg,  var(--s2s-grid) 0 1px, transparent 1px 28px),
    var(--s2s-paper);
  border-bottom: 1px solid var(--s2s-line);
}
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: 3.2rem;
  align-items: center;
  padding-top: 4.2rem;
  padding-bottom: 4.6rem;
}
.hero-sub { font-size: 1.12rem; color: var(--s2s-ink-2); max-width: 34rem; margin: 1.1rem 0 1.7rem; }
.hero-actions { display: flex; gap: .8rem; flex-wrap: wrap; }
.hero-note { margin-top: 1.1rem; font-size: .74rem; letter-spacing: .06em; color: var(--s2s-ink-3); text-transform: uppercase; }

/* ---- The schematic (signature) ------------------------------------------------ */
.schematic {
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 34px 1fr;
  grid-template-rows: auto auto;
  gap: .4rem;
  align-items: stretch;
}
.schem-panel {
  background: var(--s2s-panel);
  border: 1px solid var(--s2s-line);
  border-radius: var(--s2s-radius);
  box-shadow: var(--s2s-shadow-lg);
  padding: .9rem .95rem 1rem;
}
.schem-title {
  font-size: .7rem; letter-spacing: .04em; margin: 0 0 .7rem;
  color: var(--s2s-ink); font-weight: 500;
}
.schem-title span { color: var(--s2s-ink-3); }
.schem-target .schem-title span { color: var(--s2s-verd); }
.schem-node {
  position: relative;
  display: flex; align-items: center; gap: .5rem;
  border: 1px solid var(--s2s-line);
  border-radius: var(--s2s-radius-sm);
  padding: .42rem .6rem;
  margin-bottom: .42rem;
  font-size: .78rem; font-weight: 500;
  background: var(--s2s-paper);
}
.schem-node:last-child { margin-bottom: 0; }
.schem-child { margin-left: 1.1rem; }
.schem-child::before {
  content: ""; position: absolute; left: -0.7rem; top: -0.55rem;
  width: .55rem; height: 1.05rem;
  border-left: 1px solid var(--s2s-draft);
  border-bottom: 1px solid var(--s2s-draft);
  border-bottom-left-radius: 4px;
}
.schem-node i {
  width: 8px; height: 8px; border-radius: 2px; flex: none;
  background: var(--s2s-draft);
}
.schem-node b {
  margin-left: auto; font-family: var(--s2s-mono); font-weight: 400;
  font-size: .68rem; color: var(--s2s-ink-3); white-space: nowrap;
}
.schem-target .schem-node { transition: opacity .45s ease, transform .45s ease; }
.schem-target .schem-node i { background: var(--s2s-verd); border-radius: 50%; }
.schem-target .schem-node b { color: var(--s2s-verd-deep); }
.schematic.animate .schem-target .schem-node { opacity: .22; transform: translateX(6px); }
.schematic.animate .schem-target .schem-node.done { opacity: 1; transform: none; }

/* conduit */
.schem-conduit { display: flex; }
.schem-conduit svg { width: 100%; height: 100%; min-height: 200px; }
.conduit-path {
  stroke: var(--s2s-draft); stroke-width: 1.6;
  stroke-dasharray: 5 6; fill: none;
}
.conduit-packet { fill: var(--s2s-verd); opacity: 0; }
.schematic.animate .conduit-packet { opacity: 1; }
@media (prefers-reduced-motion: no-preference) {
  .schematic.animate .conduit-path { animation: conduit-flow 1.1s linear infinite; }
  @keyframes conduit-flow { to { stroke-dashoffset: -22; } }
}

/* readout */
.schem-readout {
  grid-column: 1 / -1;
  display: flex; gap: .55rem; flex-wrap: wrap;
  margin-top: .35rem;
}
.schem-readout span {
  font-size: .72rem; letter-spacing: .03em;
  color: var(--s2s-verd-deep);
  background: var(--s2s-verd-tint);
  border: 1px solid #BBDCCE;
  border-radius: 999px;
  padding: .28rem .7rem;
  transition: opacity .4s ease, transform .4s ease;
}
.schematic.animate .schem-readout span { opacity: 0; transform: translateY(4px); }
.schematic.animate .schem-readout span.done { opacity: 1; transform: none; }

/* ---- Proof strip ---------------------------------------------------------------- */
.proof-strip { background: var(--s2s-ink); }
.proof-strip .shell {
  display: flex; flex-wrap: wrap; gap: .4rem 2.6rem;
  justify-content: center;
  padding-top: .85rem; padding-bottom: .85rem;
}
.proof-strip span {
  color: #A8BBD2; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
  display: flex; align-items: center; gap: .6rem;
}
.proof-strip span::before { content: "▪"; color: var(--s2s-verd); font-size: .6rem; }

/* ---- Sections -------------------------------------------------------------------- */
.section { padding: 5rem 0 5.2rem; }
.section-alt { background: #EDF1F5; border-top: 1px solid var(--s2s-line); border-bottom: 1px solid var(--s2s-line); }
.section-lede { max-width: 40rem; color: var(--s2s-ink-2); font-size: 1.05rem; margin-bottom: 2.4rem; }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; margin-top: 2.2rem; }
.step { position: relative; padding-top: 1.4rem; }
.step-no {
  font-size: .78rem; color: var(--s2s-verd); letter-spacing: .12em;
  margin: 0 0 .7rem;
}
.step-no::after { content: ""; display: block; width: 2.2rem; height: 2px; background: var(--s2s-verd); margin-top: .5rem; }
.step p { color: var(--s2s-ink-2); font-size: .95rem; }
.step-spec {
  margin: 1rem 0 0; padding-top: .8rem;
  border-top: 1px dashed var(--s2s-draft);
  font-size: .74rem; color: var(--s2s-ink-3);
}

/* fidelity */
.fidelity-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.fid p { color: var(--s2s-ink-2); font-size: .92rem; }
.fid-spec {
  margin: .9rem 0 0; padding-top: .7rem;
  border-top: 1px dashed var(--s2s-draft);
  font-size: .72rem; color: var(--s2s-verd-deep);
}

/* pricing */
.plans { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.1rem; margin-top: 2.2rem; align-items: stretch; }
.plan { display: flex; flex-direction: column; position: relative; }
.plan h3 { margin-bottom: .2rem; }
.plan-price { margin: 0 0 1rem; }
.plan-price b { font-family: var(--s2s-display); font-size: 2.1rem; font-weight: 700; letter-spacing: -.02em; }
.plan-price span { color: var(--s2s-ink-3); font-size: .9rem; }
.plan ul { list-style: none; padding: 0; margin: 0 0 1.4rem; flex: 1; }
.plan ul li {
  font-size: .78rem; color: var(--s2s-ink-2);
  padding: .42rem 0; border-bottom: 1px solid var(--s2s-grid);
}
.plan ul li::before { content: "✓ "; color: var(--s2s-verd); }
.plan-featured { border-color: var(--s2s-verd); box-shadow: 0 0 0 1px var(--s2s-verd), var(--s2s-shadow-lg); }
.plan-flag {
  position: absolute; top: -0.72rem; left: 1.1rem;
  background: var(--s2s-verd); color: #fff;
  font-size: .66rem; letter-spacing: .12em; text-transform: uppercase;
  padding: .22rem .6rem; border-radius: 999px; margin: 0;
}
.plans-note { max-width: 44rem; margin-top: 1.6rem; font-size: .88rem; }

/* security */
.security-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center; }
.security-list { list-style: none; padding: 0; margin: 1.4rem 0 0; }
.security-list li {
  padding: .9rem 0 .9rem 1.7rem; position: relative;
  color: var(--s2s-ink-2); font-size: .97rem;
  border-bottom: 1px solid var(--s2s-line);
}
.security-list li b { color: var(--s2s-ink); display: block; margin-bottom: .15rem; }
.security-list li::before {
  content: ""; position: absolute; left: 0; top: 1.35rem;
  width: 9px; height: 9px; border-radius: 2px; background: var(--s2s-verd);
}
.spec-caption { font-size: .74rem; color: var(--s2s-ink-3); margin-bottom: .5rem; }
.security-spec .s2s-spec { font-size: .86rem; box-shadow: var(--s2s-shadow-lg); }

/* CTA band */
.cta-band { background: var(--s2s-ink); padding: 4.6rem 0; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { color: #A8BBD2; max-width: 34rem; margin: .6rem auto 1.8rem; }
.cta-actions { display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; }

/* ---- Footer -------------------------------------------------------------------------- */
.site-footer { padding: 2.4rem 0 2.8rem; border-top: 1px solid var(--s2s-line); }
.site-footer .shell { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.site-footer nav { display: flex; gap: 1.3rem; margin-right: auto; }
.site-footer nav a { color: var(--s2s-ink-2); font-size: .88rem; }
.site-footer p { margin: 0; font-size: .72rem; letter-spacing: .05em; }

/* ---- Reveal on scroll ------------------------------------------------------------------ */
.reveal { opacity: 1; transform: none; }
@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(14px); transition: opacity .55s ease, transform .55s ease; }
  .js .reveal.in { opacity: 1; transform: none; }
}

/* ---- Responsive -------------------------------------------------------------------------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.6rem; padding-top: 3rem; padding-bottom: 3.4rem; }
  .steps, .fidelity-grid { grid-template-columns: 1fr 1fr; }
  .plans { grid-template-columns: 1fr 1fr; }
  .security-grid { grid-template-columns: 1fr; gap: 2rem; }
  .site-nav { display: none; }
}
@media (max-width: 620px) {
  .steps, .fidelity-grid, .plans { grid-template-columns: 1fr; }
  .schematic { grid-template-columns: 1fr 22px 1fr; }
  .schem-node b { display: none; }
  .site-header-cta .s2s-btn-ghost { display: none; }
  .section { padding: 3.4rem 0; }
}