*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'IBM Plex Sans', 'Segoe UI', system-ui, sans-serif;
  background: #0a0b0f;
  color: #c8cdd8;
  line-height: 1.6;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

:root {
  --bg: #0a0b0f;
  --panel: #12141c;
  --ink: #e8eaf0;
  --muted: #7a8194;
  --cell: #5ce0a0;
  --cell-dim: #2a8a5c;
  --warn: #e0b05c;
  --rail: 200px;
  --mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;
}

/* ——— LEFT RAIL NAV (not top-center) ——— */
.rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail);
  background: #06070a;
  border-right: 1px solid rgba(92,224,160,0.15);
  display: flex;
  flex-direction: column;
  padding: 28px 18px;
  z-index: 100;
}
.rail .mark {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cell);
  margin-bottom: 4px;
}
.rail .mark span {
  display: block;
  color: var(--muted);
  font-weight: 500;
  margin-top: 4px;
  letter-spacing: 0.06em;
  font-size: 0.62rem;
}
.rail nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 40px;
  flex: 1;
}
.rail nav a {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 10px 12px;
  border-left: 2px solid transparent;
  transition: all 0.15s;
}
.rail nav a:hover {
  color: var(--ink);
  background: rgba(92,224,160,0.05);
}
.rail nav a.on {
  color: var(--cell);
  border-left-color: var(--cell);
  background: rgba(92,224,160,0.07);
}
.rail .foot {
  font-family: var(--mono);
  font-size: 0.58rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  line-height: 1.5;
}

.stage {
  margin-left: var(--rail);
  min-height: 100vh;
}

.mob-toggle {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 200;
  background: var(--cell);
  color: #0a0b0f;
  border: none;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 14px;
  cursor: pointer;
}

/* ——— ORIGIN: asymmetric full stage, NO hero+3 ——— */
.origin-stage {
  display: grid;
  grid-template-columns: 1fr 42%;
  min-height: 100vh;
}
.origin-copy {
  padding: 64px 48px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  max-width: 560px;
}
.origin-copy .k {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cell);
  margin-bottom: 20px;
}
.origin-copy h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.5px;
  margin-bottom: 20px;
}
.origin-copy h1 em {
  font-style: normal;
  color: var(--cell);
}
.origin-copy p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 16px;
}
.origin-copy .links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 28px;
}
.origin-copy .links a {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--cell);
  border-bottom: 1px solid rgba(92,224,160,0.3);
  padding-bottom: 4px;
  width: fit-content;
}
.origin-copy .links a:hover { border-color: var(--cell); }

/* CSS cellular pattern panel — no photo required on right */
.origin-pattern {
  background: #06070a;
  border-left: 1px solid rgba(92,224,160,0.12);
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  grid-template-rows: repeat(24, 1fr);
  gap: 2px;
  padding: 12px;
  min-height: 100vh;
}
.origin-pattern i {
  display: block;
  background: transparent;
  border-radius: 1px;
}
/* deterministic-looking rule30-ish scatter */
.origin-pattern i:nth-child(3n) { background: rgba(92,224,160,0.15); }
.origin-pattern i:nth-child(7n) { background: rgba(92,224,160,0.35); }
.origin-pattern i:nth-child(11n) { background: rgba(92,224,160,0.55); }
.origin-pattern i:nth-child(13n+1) { background: rgba(92,224,160,0.8); }
.origin-pattern i:nth-child(17n) { background: var(--cell); }
.origin-pattern .label {
  position: absolute;
  bottom: 24px;
  left: 20px;
  right: 20px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(92,224,160,0.6);
}

/* ——— RULE: horizontal bands, not 4 cards ——— */
.rule-head {
  padding: 56px 48px 24px;
  border-bottom: 1px solid rgba(92,224,160,0.12);
}
.rule-head .k {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cell);
  margin-bottom: 12px;
}
.rule-head h1 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 600;
  color: var(--ink);
  max-width: 640px;
}

.band {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 36px 48px;
  border-bottom: 1px solid rgba(92,224,160,0.08);
}
.band .num {
  font-family: var(--mono);
  font-size: 1.4rem;
  color: var(--cell);
  font-weight: 700;
}
.band h2 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
}
.band p {
  color: var(--muted);
  max-width: 640px;
  font-size: 0.98rem;
}
.band .bits {
  display: flex;
  gap: 6px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.band .bits span {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border: 1px solid rgba(92,224,160,0.25);
  color: var(--cell-dim);
  border-radius: 2px;
}

/* ——— FIELD: full-width alternating rows ——— */
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 320px;
  border-bottom: 1px solid rgba(92,224,160,0.1);
}
.field-row.reverse .txt { order: 2; }
.field-row.reverse .pic { order: 1; }
.field-row .pic {
  overflow: hidden;
  background: #06070a;
}
.field-row .pic img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  filter: saturate(0.7) contrast(1.05);
}
.field-row .txt {
  padding: 40px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--panel);
}
.field-row .txt .k {
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--warn);
  margin-bottom: 10px;
}
.field-row .txt h2 {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
}
.field-row .txt p {
  color: var(--muted);
  font-size: 0.95rem;
}

.field-intro {
  padding: 48px 48px 20px;
}
.field-intro .k {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cell);
  margin-bottom: 10px;
}
.field-intro h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  color: var(--ink);
}

/* ——— CELL: single-column manifesto, pull quotes ——— */
.cell-wrap {
  max-width: 680px;
  margin: 0 auto;
  padding: 56px 32px 80px;
}
.cell-wrap .k {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cell);
  margin-bottom: 16px;
}
.cell-wrap h1 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 28px;
  line-height: 1.2;
}
.cell-wrap p {
  color: var(--muted);
  margin-bottom: 18px;
  font-size: 1.05rem;
}
.cell-wrap .pull {
  border-left: 3px solid var(--cell);
  padding: 8px 0 8px 20px;
  margin: 32px 0;
  font-size: 1.25rem;
  color: var(--ink);
  font-weight: 500;
  line-height: 1.4;
}
.cell-wrap .meta {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(92,224,160,0.15);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* ——— INBOX: narrow single column, not 2-col form ——— */
.inbox-wrap {
  max-width: 480px;
  margin: 0 auto;
  padding: 64px 28px 80px;
}
.inbox-wrap .k {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cell);
  margin-bottom: 12px;
}
.inbox-wrap h1 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 12px;
}
.inbox-wrap .lead {
  color: var(--muted);
  margin-bottom: 32px;
  font-size: 0.98rem;
}
.inbox-wrap .addr {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 32px;
  padding: 16px;
  background: var(--panel);
  border: 1px solid rgba(92,224,160,0.12);
}
.inbox-wrap .addr a { color: var(--cell); }
.inbox-wrap label {
  display: block;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}
.inbox-wrap input,
.inbox-wrap textarea {
  width: 100%;
  padding: 12px 14px;
  background: #06070a;
  border: 1px solid rgba(92,224,160,0.2);
  color: var(--ink);
  font-size: 0.95rem;
  margin-bottom: 14px;
  font-family: inherit;
}
.inbox-wrap input:focus,
.inbox-wrap textarea:focus {
  outline: none;
  border-color: var(--cell);
}
.inbox-wrap textarea { min-height: 120px; resize: vertical; }
.inbox-wrap button {
  width: 100%;
  padding: 14px;
  background: var(--cell);
  color: #0a0b0f;
  border: none;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}
.inbox-wrap button:hover { filter: brightness(1.08); }

.ft-line {
  margin-left: var(--rail);
  padding: 20px 48px;
  border-top: 1px solid rgba(92,224,160,0.1);
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

@media (max-width: 900px) {
  .rail {
    transform: translateX(-100%);
    transition: transform 0.2s;
  }
  .rail.open { transform: translateX(0); }
  .mob-toggle { display: block; }
  .stage, .ft-line { margin-left: 0; }
  .origin-stage { grid-template-columns: 1fr; }
  .origin-pattern {
    min-height: 220px;
    grid-template-rows: repeat(10, 1fr);
  }
  .origin-copy { padding: 72px 24px 40px; }
  .band { grid-template-columns: 1fr; padding: 28px 24px; }
  .band .num { margin-bottom: -12px; }
  .field-row { grid-template-columns: 1fr; }
  .field-row.reverse .txt, .field-row.reverse .pic { order: unset; }
  .field-intro, .rule-head { padding-left: 24px; padding-right: 24px; }
  .field-row .txt { padding: 28px 24px; }
  .ft-line { padding: 16px 24px; }
}