/* OpenSMM website — cool paper, ink, Base blue. One bold moment: the wire. */

:root {
  --paper: #F5F5F0;
  --ink: #181B22;
  --muted: #61666F;
  --rule: #DDDFD5;
  --accent: #0052FF;
  --accent-ink: #0039B8;
  --panel: #0E1117;
  --panel-ink: #C9D1D9;
  --panel-dim: #7D8590;
  --ok: #3FB68B;
  --warn: #E3B341;
  --sans: "Space Grotesk", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

::selection { background: var(--accent); color: #fff; }

a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

code { font-family: var(--mono); font-size: 0.86em; }

/* ---------- nav ---------- */

.nav { border-bottom: 1px solid var(--rule); }
.nav-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  padding-bottom: 18px;
}
.brand {
  font-weight: 700;
  font-size: 19px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.brand:hover { text-decoration: none; }
.version {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 11px;
  color: var(--muted);
  border: 1px solid var(--rule);
  border-radius: 999px;
  padding: 2px 8px;
  margin-left: 8px;
  vertical-align: 3px;
}
.nav-links { display: flex; gap: 22px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-size: 15px; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }

/* ---------- hero ---------- */

.hero { padding: 88px 0 72px; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

h1 {
  font-size: clamp(34px, 4.6vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  font-weight: 700;
  max-width: 14ch;
}

.lede {
  margin-top: 22px;
  font-size: 18px;
  color: var(--muted);
  max-width: 46ch;
}

.hero-actions {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 500;
  font-size: 15px;
  padding: 11px 20px;
  border-radius: 6px;
}
.btn:hover { background: var(--accent-ink); text-decoration: none; }

.cmd-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 8px 8px 8px 12px;
  background: #fff;
  max-width: 100%;
}
.cmd-chip code {
  font-size: 12.5px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 38ch;
}

.copy {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  background: none;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 4px 10px;
  cursor: pointer;
  flex-shrink: 0;
}
.copy:hover { color: var(--ink); border-color: var(--muted); }
.copy.copied { color: var(--ok); border-color: var(--ok); }

.hero-note {
  margin-top: 18px;
  font-size: 14px;
  color: var(--muted);
  max-width: 52ch;
}

/* ---------- the wire ---------- */

.wire {
  background: var(--panel);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 24px 48px -24px rgba(14, 17, 23, 0.45);
}
.wire-head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border-bottom: 1px solid #1C212B;
}
.wire-dot { width: 9px; height: 9px; border-radius: 50%; background: #2A3140; }
.wire-title {
  margin-left: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--panel-dim);
}
.wire-body {
  font-family: var(--mono);
  font-size: 12.8px;
  line-height: 1.75;
  color: var(--panel-ink);
  padding: 18px 20px 22px;
  min-height: 348px;
  white-space: pre-wrap;
  word-break: break-word;
}
.wire-body .p { color: var(--panel-dim); }          /* prompt marker › */
.wire-body .t { color: #79B8FF; }                   /* tool / command */
.wire-body .r { color: var(--panel-dim); }          /* response marker ← */
.wire-body .n { color: #B392F0; }                   /* numbers, ids */
.wire-body .s-ok { color: var(--ok); }
.wire-body .s-warn { color: var(--warn); }
.wire-body .gap { display: block; height: 0.6em; }
.wire-cursor {
  display: inline-block;
  width: 7px;
  height: 14px;
  background: var(--panel-ink);
  vertical-align: -2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- sections ---------- */

.section { border-top: 1px solid var(--rule); padding: 72px 0; }

h2 {
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 24ch;
}

.section-lede {
  margin-top: 14px;
  color: var(--muted);
  max-width: 62ch;
}

.section-note {
  margin-top: 26px;
  font-size: 15px;
  color: var(--muted);
  max-width: 68ch;
}

/* ---------- flow ---------- */

.flow {
  margin-top: 36px;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--rule);
}
.flow li {
  padding: 20px 18px 0 0;
  border-right: 1px solid var(--rule);
  margin-right: 0;
}
.flow li:last-child { border-right: none; }
.flow-step {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-ink);
}
.flow h3 { font-size: 17px; margin: 8px 0 6px; letter-spacing: -0.01em; }
.flow p { font-size: 14px; color: var(--muted); line-height: 1.55; padding-right: 4px; }

/* ---------- tools ---------- */

.tools-grid {
  margin-top: 36px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 48px;
}
.tool {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 13px 0;
  border-top: 1px solid var(--rule);
}
.tool code { font-size: 13.5px; color: var(--ink); }
.tool p { font-size: 14.5px; color: var(--muted); }

/* ---------- settlement diagram ---------- */

.settle-diagram {
  margin-top: 40px;
  max-width: 760px;
}
.node {
  display: inline-block;
  border: 1px solid var(--ink);
  border-radius: 6px;
  padding: 10px 22px;
  font-weight: 500;
  font-size: 15px;
  background: #fff;
}
.money-row {
  display: flex;
  align-items: center;
  gap: 16px;
}
.money-line {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
}
.money-label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-ink);
  white-space: nowrap;
}
.money-arrow {
  flex: 1;
  height: 2px;
  background: var(--accent);
  position: relative;
}
.money-arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: -4px;
  border: 5px solid transparent;
  border-left-color: var(--accent);
  border-right: none;
}
.gw-line {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 30px;
  padding: 0 60px;
}
.gw-arrow {
  flex: 1;
  height: 1px;
  background: var(--rule);
  position: relative;
}
.gw-arrow::after {
  content: "";
  position: absolute;
  top: -3px;
  border: 4px solid transparent;
}
.gw-arrow:first-child::after {
  left: 0;
  border-right-color: var(--rule);
  border-left: none;
}
.gw-arrow:last-child::after {
  right: 0;
  border-left-color: var(--rule);
  border-right: none;
}
.node.gw {
  border-color: var(--rule);
  background: var(--paper);
  text-align: center;
}
.gw-sub {
  display: block;
  font-family: var(--mono);
  font-weight: 400;
  font-size: 11px;
  color: var(--muted);
  margin-top: 3px;
}

/* ---------- trust ---------- */

.formula {
  margin-top: 32px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: #fff;
  padding: 20px 24px;
  max-width: 760px;
  overflow-x: auto;
}
.formula code { font-size: 14px; color: var(--ink); white-space: nowrap; }
.formula sup { font-size: 0.7em; }

.tiers {
  margin-top: 20px;
  max-width: 760px;
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}
.tiers th, .tiers td {
  text-align: left;
  padding: 10px 16px 10px 0;
  border-top: 1px solid var(--rule);
  vertical-align: baseline;
}
.tiers thead th {
  border-top: none;
  font-weight: 500;
  color: var(--muted);
  font-size: 13px;
}
.tiers td { color: var(--muted); }
.tier { font-weight: 700; color: var(--ink) !important; width: 90px; }

/* ---------- supply ---------- */

.code-block {
  margin-top: 32px;
  max-width: 760px;
  background: var(--panel);
  border-radius: 10px;
  overflow: hidden;
}
.code-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px;
  border-bottom: 1px solid #1C212B;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--panel-dim);
}
.code-block .copy { border-color: #2A3140; color: var(--panel-dim); }
.code-block .copy:hover { color: var(--panel-ink); border-color: var(--panel-dim); }
.code-block pre {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--panel-ink);
  padding: 16px 20px 20px;
  overflow-x: auto;
}

/* ---------- footer ---------- */

.footer {
  border-top: 1px solid var(--rule);
  padding: 28px 0 40px;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
}
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--ink); text-decoration: none; }

/* ---------- catalog ---------- */

.crumbs { font-size: 14px; color: var(--muted); margin-bottom: 20px; display: flex; gap: 8px; flex-wrap: wrap; }
.crumb-sep { color: var(--rule); }

.catalog-hero { border-top: none; padding: 56px 0 40px; }
.catalog-hero h1 { letter-spacing: -0.02em; }
.catalog-body { padding: 0 0 72px; border-top: none; }

.hub-list { list-style: none; margin-top: 32px; border-top: 1px solid var(--rule); }
.hub-item {
  display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap;
  padding: 14px 0; border-bottom: 1px solid var(--rule);
}
.hub-name { font-weight: 700; font-size: 18px; color: var(--ink); min-width: 160px; }
.hub-name:hover { color: var(--accent-ink); text-decoration: none; }
.hub-count { font-family: var(--mono); font-size: 13px; color: var(--muted); }
.hub-links { font-size: 14px; color: var(--muted); }

.cat-nav { font-size: 15px; color: var(--muted); margin-top: 12px; }

.cat-heading {
  font-size: 20px; letter-spacing: -0.01em;
  margin: 40px 0 12px; display: flex; align-items: baseline; gap: 10px;
}
.cat-count { font-family: var(--mono); font-size: 13px; color: var(--muted); font-weight: 400; }

.table-scroll { overflow-x: auto; }
.cat-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.cat-table th {
  text-align: left; font-weight: 500; color: var(--muted); font-size: 13px;
  border-bottom: 1px solid var(--ink); padding: 6px 12px 6px 0;
}
.cat-table td { border-bottom: 1px solid var(--rule); padding: 8px 12px 8px 0; vertical-align: top; }
.cat-table .num, .cat-table th.num { text-align: right; font-family: var(--mono); font-size: 13px; white-space: nowrap; }
.svc-name { max-width: 520px; }

.badge {
  display: inline-block; font-family: var(--mono); font-size: 11px;
  padding: 1px 7px; border-radius: 999px; margin-right: 4px; white-space: nowrap;
}
.badge-ok { color: var(--ok); border: 1px solid var(--ok); }

@media (max-width: 700px) {
  .svc-name { max-width: none; }
  .hub-name { min-width: 0; }
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .hero { padding: 56px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .flow { grid-template-columns: 1fr; }
  .flow li { border-right: none; border-bottom: 1px solid var(--rule); padding: 16px 0; }
  .flow li:last-child { border-bottom: none; }
  .tools-grid { grid-template-columns: 1fr; }
  .tool { grid-template-columns: 1fr; gap: 2px; }
  h1 { max-width: 18ch; }
}

@media (max-width: 560px) {
  .nav-row { flex-direction: column; gap: 10px; }
  .wire-body { font-size: 11.5px; min-height: 320px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .wire-cursor { animation: none; }
}