/* =========================================================
   Arx — home page styles
   ========================================================= */

/* ========== HERO ========== */
.hero {
  padding: clamp(56px, 9vw, 140px) 0 clamp(64px, 8vw, 110px);
  position: relative;
  overflow: hidden;
}
.hero::after {
  /* thin crosshair guide lines — printed feel */
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--rule) 1px, transparent 1px),
    linear-gradient(to bottom, var(--rule) 1px, transparent 1px);
  background-size: 120px 120px;
  background-position: 0 0;
  opacity: .22;
  pointer-events: none;
  mask-image: radial-gradient(circle at 20% 30%, black 0%, transparent 65%);
}

.hero .container { position: relative; z-index: 1; }

.hero-eyebrow {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 32px;
}
.hero-eyebrow .caret { color: var(--ink-3); }

.hero h1 {
  font-family: var(--font-display);
  font-weight: 360;
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  max-width: 16ch;
}
.hero h1 em {
  font-style: italic;
  font-weight: 320;
  color: var(--ink-2);
}
.hero h1 .underline {
  position: relative; display: inline-block;
}
.hero h1 .underline::after {
  content: ""; position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 8px;
  background: var(--signal);
  opacity: .3;
  z-index: -1;
}

.hero-sub {
  margin-top: 36px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: end;
}
.hero-sub .lede { font-size: 1.2rem; }
.hero-sub .hero-cta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.hero-sub .metaline {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  margin-top: 16px;
  text-transform: uppercase;
}
.hero-sub .metaline span { margin: 0 6px; }

/* ----- demo console ----- */
.console {
  margin-top: clamp(56px, 7vw, 96px);
  border: 1px solid var(--rule-2);
  background: #FBF9F3;
  border-radius: 4px;
  overflow: hidden;
  box-shadow:
    0 1px 0 rgba(21,20,18,0.04),
    0 30px 60px -30px rgba(21,20,18,0.18);
}
.console-bar {
  display: grid;
  grid-template-columns: 220px 1fr 220px;
  align-items: center;
  height: 40px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper-2);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
}
.console-bar .dots { display: flex; gap: 6px; padding-left: 16px; }
.console-bar .dots i { width: 10px; height: 10px; border-radius: 50%; display: inline-block; background: var(--rule-2); }
.console-bar .dots i:nth-child(1){ background: #D1C5A0; }
.console-bar .dots i:nth-child(2){ background: #B8B09C; }
.console-bar .dots i:nth-child(3){ background: #9FA996; }
.console-bar .path { text-align: center; }
.console-bar .path strong { color: var(--ink-2); font-weight: 500; }
.console-bar .who { padding-right: 16px; text-align: right; }

.console-body {
  display: grid;
  grid-template-columns: 220px 1fr 380px;
  min-height: 560px;
}
.console-side {
  border-right: 1px solid var(--rule);
  padding: 20px 16px;
  background: var(--paper);
}
.console-side h5 {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 12px;
  font-weight: 500;
}
.console-side .navitem {
  display: flex; justify-content: space-between; align-items: center;
  padding: 7px 8px;
  font-size: 13px;
  color: var(--ink-2);
  border-radius: 3px;
  margin-bottom: 2px;
}
.console-side .navitem.active { background: var(--ink); color: var(--paper); }
.console-side .navitem small { font-family: var(--font-mono); color: var(--ink-3); font-size: 10px; }
.console-side .navitem.active small { color: rgba(246,243,236,.6); }
.console-side .section-break { height: 1px; background: var(--rule); margin: 18px 0 14px; }

.console-main {
  padding: 24px 28px;
  min-width: 0;
}
.console-main .title {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  margin-bottom: 6px;
}
.console-main .title .meta { flex-shrink: 0; }
.console-main .title h4 {
  font-family: var(--font-display);
  font-weight: 440;
  font-size: 22px;
  letter-spacing: -0.02em;
}
.console-main .title .meta { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); letter-spacing: .04em; }
.console-main .subtitle { font-size: 13px; color: var(--ink-3); margin-bottom: 20px; }

.kv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--rule);
  border-left: 1px solid var(--rule);
}
.kv-cell {
  padding: 12px 14px;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
}
.kv-cell .k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 4px;
}
.kv-cell .v {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
}
.kv-cell .v.pill {
  display: inline-block;
  border: 1px solid var(--rule-2);
  padding: 2px 6px;
  border-radius: 2px;
  font-size: 10.5px;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.kv-cell .v.pill.ok { background: rgba(46,90,59,0.08); border-color: rgba(46,90,59,.35); color: var(--ok); }
.kv-cell .v.pill.warn { background: rgba(181,74,43,0.08); border-color: rgba(181,74,43,.35); color: var(--signal); }

.flow-diagram { margin-top: 22px; }
.flow-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 10px;
}

/* right rail — approval card */
.console-rail {
  border-left: 1px solid var(--rule);
  padding: 22px 22px;
  background: var(--paper-2);
  font-size: 13px;
}
.console-rail h5 {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 10px;
  font-weight: 500;
}
.approval-card {
  background: var(--paper);
  border: 1px solid var(--rule-2);
  padding: 16px;
  border-radius: 2px;
  margin-bottom: 16px;
}
.approval-card .tophead {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-mono); font-size: 10.5px; letter-spacing: .04em;
  color: var(--ink-3);
  margin-bottom: 10px;
}
.approval-card .tophead .sev {
  color: var(--signal);
  border: 1px solid rgba(181,74,43,.4);
  padding: 1px 6px;
  border-radius: 2px;
  background: rgba(181,74,43,.06);
}
.approval-card h6 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 440;
  letter-spacing: -0.015em;
  margin: 0 0 8px;
  line-height: 1.2;
}
.approval-card .diff {
  margin-top: 10px;
  background: var(--mono-bg);
  color: var(--mono-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  padding: 10px 12px;
  border-radius: 2px;
  white-space: pre;
  overflow-x: auto;
}
.approval-card .diff .del { color: #E38B7F; }
.approval-card .diff .add { color: var(--mono-green); }
.approval-card .diff .dim { color: var(--mono-dim); }
.approval-card .actions {
  display: flex; gap: 8px; margin-top: 12px;
}
.approval-card .actions .btn { height: 30px; padding: 0 10px; font-size: 12px; flex: 1; justify-content: center; }

.rail-telemetry { margin-top: 18px; }
.rail-telemetry .row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 7px 0;
  border-bottom: 1px dashed var(--rule);
  font-size: 12.5px;
  color: var(--ink-2);
}
.rail-telemetry .row:last-child { border: 0; }
.rail-telemetry .row .mono { font-size: 11.5px; }
.pulse-dot {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 0 rgba(46,90,59,0.5);
  animation: pulse 2.2s ease-out infinite;
  margin-right: 6px;
  vertical-align: 2px;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(46,90,59,.5); }
  70% { box-shadow: 0 0 0 8px rgba(46,90,59,0); }
  100% { box-shadow: 0 0 0 0 rgba(46,90,59,0); }
}

/* ========== LOGOS ========== */
.logos {
  padding: 40px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper-2);
}
.logos .container {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap;
  gap: 20px 40px;
}
.logos .label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.logos .grid {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
  align-items: center;
}
.logos .logo-item {
  font-family: var(--font-display);
  font-weight: 460;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--ink-2);
  opacity: .8;
}

/* ========== PROBLEM / THESIS ========== */
.thesis {
  padding: clamp(80px, 10vw, 160px) 0;
}
.thesis .container {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 80px;
  align-items: start;
}
.thesis .left {
  position: sticky; top: 120px;
}
.thesis .left h2 {
  font-family: var(--font-display);
  font-weight: 380;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}
.thesis .left h2 em { font-style: italic; color: var(--ink-2); font-weight: 340; }
.thesis .left p { color: var(--ink-2); font-size: 17px; line-height: 1.55; max-width: 38ch; }

.thesis .right { display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.thesis-row {
  background: var(--paper);
  padding: 36px 32px;
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
}
.thesis-row .num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  padding-top: 6px;
}
.thesis-row h3 {
  font-family: var(--font-display);
  font-weight: 440;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.thesis-row p { color: var(--ink-2); line-height: 1.55; font-size: 15px; }
.thesis-row .mono-line {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-3);
  border-left: 2px solid var(--signal);
  padding-left: 10px;
}

/* ========== CAPABILITIES ========== */
.caps { padding: clamp(80px, 9vw, 140px) 0; border-top: 1px solid var(--rule); }
.caps-head {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 56px;
  align-items: end;
  margin-bottom: 64px;
}
.caps-head h2 {
  font-family: var(--font-display);
  font-weight: 380;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: 18ch;
}
.caps-head .right p { color: var(--ink-2); font-size: 16px; line-height: 1.55; max-width: 45ch; }

.caps-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.cap {
  background: var(--paper);
  padding: 36px 28px;
  display: flex; flex-direction: column;
  min-height: 320px;
  position: relative;
  transition: background .2s var(--ease);
}
.cap:hover { background: #FBF9F3; }
.cap .num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
  margin-bottom: 32px;
}
.cap h3 {
  font-family: var(--font-display);
  font-weight: 420;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin-bottom: 14px;
}
.cap p { color: var(--ink-2); font-size: 14px; line-height: 1.55; margin-bottom: 20px; }
.cap .viz { margin-top: auto; }
.cap.big { grid-column: span 3; }
.cap.med { grid-column: span 3; }
.cap.third { grid-column: span 2; }

/* capability mini-visuals */
.viz-controls { display: grid; gap: 6px; }
.viz-controls .ctrl-row {
  display: grid; grid-template-columns: 1fr auto;
  padding: 7px 10px;
  font-family: var(--font-mono); font-size: 11px;
  background: var(--paper-2); border: 1px solid var(--rule);
  color: var(--ink-2);
}
.viz-controls .ctrl-row .status.ok { color: var(--ok); }
.viz-controls .ctrl-row .status.pending { color: var(--signal-2); }

.viz-graph {
  position: relative;
  height: 140px;
}
.viz-graph svg { width: 100%; height: 100%; }

.viz-connectors {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
}
.viz-connectors span {
  background: var(--paper-2);
  padding: 8px;
  text-align: center;
  text-transform: uppercase;
}

.viz-audit {
  background: var(--mono-bg);
  color: var(--mono-ink);
  font-family: var(--font-mono);
  font-size: 10.5px;
  line-height: 1.6;
  padding: 12px;
  border-radius: 2px;
  max-height: 140px;
  overflow: hidden;
  white-space: pre;
}
.viz-audit .dim { color: var(--mono-dim); }
.viz-audit .g { color: var(--mono-green); }
.viz-audit .a { color: var(--mono-amber); }

/* ========== FLOW / HOW IT WORKS ========== */
.flow { padding: clamp(80px, 9vw, 140px) 0; background: var(--paper-2); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.flow-head {
  text-align: left;
  margin-bottom: 64px;
  max-width: 52ch;
}
.flow-head h2 {
  font-family: var(--font-display);
  font-weight: 380;
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.flow-head p { color: var(--ink-2); font-size: 16px; line-height: 1.55; }

.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.flow-steps::before {
  content: ""; position: absolute; top: 22px; left: 0; right: 0; height: 1px;
  background: var(--rule-2);
  z-index: 0;
}
.flow-step { position: relative; padding-top: 48px; }
.flow-step .bullet {
  position: absolute; top: 14px; left: 0;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  box-shadow: 0 0 0 6px var(--paper-2);
}
.flow-step .n {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--ink-3);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.flow-step h3 {
  font-family: var(--font-display);
  font-weight: 440;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  max-width: 14ch;
}
.flow-step p { color: var(--ink-2); font-size: 14px; line-height: 1.55; }

/* ========== QUOTE ========== */
.testimonial {
  padding: clamp(80px, 9vw, 140px) 0;
}
.testimonial blockquote {
  font-family: var(--font-display);
  font-weight: 360;
  font-style: italic;
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 24ch;
  margin: 0;
}
.testimonial blockquote .lift {
  font-family: var(--font-display);
  font-size: 4em;
  line-height: 0;
  position: relative; top: .35em;
  color: var(--signal);
  margin-right: .1em;
}
.testimonial .attrib {
  margin-top: 40px;
  display: flex; align-items: center; gap: 16px;
  font-size: 14px;
  color: var(--ink-2);
}
.testimonial .attrib .who strong { color: var(--ink); font-weight: 500; font-family: var(--font-sans); }
.testimonial .attrib .who .meta { font-family: var(--font-mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.04em; margin-top: 2px; }
.testimonial .attrib .portrait {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 420;
  font-size: 18px;
}

/* ========== COMPLIANCE STRIP ========== */
.compliance {
  padding: clamp(72px, 8vw, 120px) 0;
  background: var(--ink); color: var(--paper);
}
.compliance .container {
  display: grid;
  grid-template-columns: minmax(0,1fr) minmax(0,1fr);
  gap: 72px;
  align-items: start;
}
.compliance h2 {
  font-family: var(--font-display);
  font-weight: 360;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: 18ch;
}
.compliance h2 em { color: rgba(246,243,236,.55); font-style: italic; font-weight: 340; }
.compliance .frameworks {
  display: grid; grid-template-columns: 1fr 1fr; gap: 28px 40px;
}
.compliance .frame h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(246,243,236,.55);
  font-weight: 500;
  margin-bottom: 8px;
}
.compliance .frame .name {
  font-family: var(--font-display);
  font-weight: 420;
  font-size: 22px;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.compliance .frame p { color: rgba(246,243,236,.7); font-size: 13px; line-height: 1.55; }

/* ========== CTA FOOTER ========== */
.cta {
  padding: clamp(90px, 11vw, 170px) 0 clamp(90px, 11vw, 170px);
  border-top: 1px solid var(--rule);
  background: var(--paper);
  text-align: left;
}
.cta .container { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: 64px; align-items: end; }
.cta h2 {
  font-family: var(--font-display);
  font-weight: 360;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  max-width: 14ch;
}
.cta h2 em { font-style: italic; color: var(--ink-2); font-weight: 340; }
.cta .side p { color: var(--ink-2); font-size: 15px; line-height: 1.55; margin-bottom: 22px; max-width: 34ch; }
.cta .side .buttons { display: flex; gap: 10px; flex-wrap: wrap; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1100px) {
  .console-body { grid-template-columns: 180px 1fr 320px; }
  .caps-grid { grid-template-columns: repeat(3, 1fr); }
  .cap.big, .cap.med { grid-column: span 3; }
  .cap.third { grid-column: span 1; }
}
@media (max-width: 900px) {
  .hero-sub { grid-template-columns: 1fr; gap: 24px; }
  .thesis .container, .caps-head, .compliance .container, .cta .container { grid-template-columns: 1fr; gap: 40px; }
  .console-body { grid-template-columns: 1fr; }
  .console-side, .console-rail { display: none; }
  .flow-steps { grid-template-columns: 1fr 1fr; }
  .caps-grid { grid-template-columns: 1fr 1fr; }
  .cap.big, .cap.med, .cap.third { grid-column: span 2; }
  .logos .grid { gap: 24px; }
}
@media (max-width: 600px) {
  .flow-steps { grid-template-columns: 1fr; }
  .kv-grid { grid-template-columns: repeat(2, 1fr); }
}