:root {
  --abyss: #05171D;
  --deep: #0A2E36;
  --deep-2: #0C3B43;
  --marine: #0E5A63;
  --aqua: #33D6C2;
  --aqua-soft: #7EE8DC;
  --gold: #E4B25A;
  --gold-soft: #F0CE92;
  --foam: #EEF5F3;
  --paper: #F7FBFA;
  --ink: #0A1E22;
  --mist: #5E7A7E;
  --mist-dark: #8FB0B3;
  --line-dark: rgba(126, 232, 220, 0.16);
  --line-light: rgba(10, 46, 54, 0.12);

  --font-display: "Palatino Linotype", "Book Antiqua", Palatino, "Iowan Old Style", Georgia, serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", "Cascadia Code", "Cascadia Mono", Consolas, "Roboto Mono", ui-monospace, monospace;

  --maxw: 1120px;
  --step-0: clamp(0.82rem, 0.8rem + 0.1vw, 0.9rem);
  --step-1: clamp(1rem, 0.96rem + 0.2vw, 1.12rem);
  --step-2: clamp(1.35rem, 1.2rem + 0.7vw, 1.75rem);
  --step-3: clamp(1.9rem, 1.5rem + 1.6vw, 2.9rem);
  --step-4: clamp(2.8rem, 2rem + 3.6vw, 5rem);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--abyss);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-1);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; text-wrap: balance; line-height: 1.1; margin: 0; }
p { margin: 0; }
a { color: inherit; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--marine);
  margin: 0;
}
.band--dark .eyebrow { color: var(--aqua); }

/* ---------- scroll progress ---------- */
#progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: linear-gradient(90deg, var(--marine), var(--aqua) 60%, var(--gold));
  z-index: 100; transition: width 0.1s linear;
}

/* ---------- nav ---------- */
nav {
  position: sticky; top: 0; z-index: 60;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  background: rgba(5, 23, 29, 0.72);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-dark);
}
.brand { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.16em; color: var(--paper); text-transform: uppercase; white-space: nowrap; }
.brand b { color: var(--aqua); font-weight: 600; }
.brand .x { color: var(--mist-dark); margin: 0 0.5em; }
.navlinks { display: flex; gap: 1.4rem; list-style: none; margin: 0; padding: 0; }
.navlinks a {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.06em;
  text-decoration: none; color: var(--mist-dark); text-transform: uppercase;
  padding: 0.3rem 0; border-bottom: 1px solid transparent; transition: color 0.2s, border-color 0.2s;
}
.navlinks a:hover, .navlinks a:focus-visible { color: var(--aqua); border-color: var(--aqua); }
.lockchip {
  font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--gold-soft); border: 1px solid rgba(228, 178, 90, 0.35); border-radius: 999px;
  padding: 0.3rem 0.7rem; white-space: nowrap;
}
@media (max-width: 860px) { .navlinks { display: none; } }

/* ---------- bands ---------- */
.band { padding: clamp(3.5rem, 8vw, 7rem) clamp(1rem, 4vw, 2.5rem); }
.band--light { background: var(--paper); color: var(--ink); }
.band--foam { background: var(--foam); color: var(--ink); }
.band--dark { background: var(--deep); color: var(--paper); }
.band--abyss { background: var(--abyss); color: var(--paper); }
.wrap { max-width: var(--maxw); margin: 0 auto; }
.measure { max-width: 62ch; }

.band--dark h2, .band--abyss h2 { color: #fff; }
.band--dark p, .band--abyss p { color: var(--mist-dark); }
.lead { font-size: var(--step-2); font-family: var(--font-display); line-height: 1.3; color: var(--deep); }
.band--dark .lead, .band--abyss .lead { color: var(--aqua-soft); }

.sec-head { display: flex; flex-direction: column; gap: 0.9rem; margin-bottom: clamp(2rem, 4vw, 3.2rem); }
.sec-head h2 { font-size: var(--step-3); }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; background: radial-gradient(120% 80% at 50% -10%, #0d3f47 0%, var(--abyss) 62%); }
#caustics { position: absolute; inset: 0; width: 100%; height: 100%; display: block; z-index: 0; }
.hero-inner {
  position: relative; z-index: 2;
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(4rem, 11vw, 9rem) clamp(1rem, 4vw, 2.5rem) clamp(3.5rem, 8vw, 6rem);
}
.hero h1 { font-size: var(--step-4); color: #fff; margin: 1.4rem 0 0; letter-spacing: -0.01em; }
.hero h1 em { font-style: italic; color: var(--aqua); }
.hero .sub { max-width: 52ch; margin-top: 1.5rem; font-size: var(--step-1); color: #cfe6e4; }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 0 2.2rem; margin-top: 2.6rem;
  padding-top: 1.6rem; border-top: 1px solid var(--line-dark);
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--mist-dark); letter-spacing: 0.03em;
}
.hero-meta b { color: var(--aqua); font-weight: 500; display: block; letter-spacing: 0.1em; font-size: 0.66rem; text-transform: uppercase; margin-bottom: 0.25rem; }
.hero-meta > div { padding: 0.2rem 0; }
.scrollcue { margin-top: 3rem; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.2em; color: var(--mist-dark); text-transform: uppercase; }
.scrollcue span { display: inline-block; animation: bob 2.4s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(4px); } }

/* ---------- "what we heard" cards ---------- */
.grid { display: grid; gap: 1px; background: var(--line-light); border: 1px solid var(--line-light); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 820px) { .grid--3 { grid-template-columns: 1fr; } }
.cell { background: var(--paper); padding: 1.6rem 1.5rem; display: flex; flex-direction: column; gap: 0.55rem; }
.cell .tag { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--marine); }
.cell h3 { font-size: 1.16rem; color: var(--ink); }
.cell p { font-size: 0.95rem; color: var(--mist); line-height: 1.55; }

/* ---------- maturity ladder ---------- */
.ladder { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem; align-items: end; margin-top: 2.5rem; }
@media (max-width: 720px) { .ladder { grid-template-columns: repeat(2, 1fr); } }
.rung { position: relative; border: 1px solid var(--line-dark); border-radius: 4px 4px 0 0; padding: 1.1rem 1rem 1.2rem; background: linear-gradient(180deg, rgba(51,214,194,0.05), transparent); }
.rung .lvl { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; color: var(--mist-dark); text-transform: uppercase; }
.rung h3 { font-size: 1.2rem; color: #fff; margin: 0.35rem 0 0.5rem; }
.rung p { font-size: 0.85rem; color: var(--mist-dark); line-height: 1.5; }
.rung--1 { height: 150px; }
.rung--2 { height: 190px; border-color: rgba(51,214,194,0.4); }
.rung--3 { height: 235px; border-color: var(--aqua); background: linear-gradient(180deg, rgba(51,214,194,0.14), transparent); box-shadow: 0 0 40px rgba(51,214,194,0.08); }
.rung--4 { height: 285px; border-color: rgba(228,178,90,0.5); background: linear-gradient(180deg, rgba(228,178,90,0.12), transparent); }
.rung--3 h3 { color: var(--aqua); }
.rung--4 h3 { color: var(--gold-soft); }
.youare {
  position: absolute; top: -0.85rem; left: 1rem;
  font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase;
  background: var(--aqua); color: var(--abyss); font-weight: 700; padding: 0.2rem 0.55rem; border-radius: 999px;
}
.target { position: absolute; top: -0.85rem; left: 1rem; font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase; background: var(--gold); color: var(--abyss); font-weight: 700; padding: 0.2rem 0.55rem; border-radius: 999px; }

/* ---------- pillars ---------- */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-top: 1rem; }
@media (max-width: 820px) { .pillars { grid-template-columns: 1fr; } }
.pillar { border: 1px solid var(--line-light); border-radius: 6px; overflow: hidden; background: #fff; }
.pillar > summary {
  list-style: none; cursor: pointer; padding: 1.8rem; display: flex; flex-direction: column; gap: 0.7rem;
  border-top: 3px solid var(--aqua);
}
.pillar--ai > summary { border-top-color: var(--gold); }
.pillar > summary::-webkit-details-marker { display: none; }
.pillar .num { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; color: var(--marine); text-transform: uppercase; }
.pillar--ai .num { color: var(--gold); filter: brightness(0.85); }
.pillar h3 { font-size: var(--step-2); color: var(--ink); }
.pillar .pdesc { font-size: 0.97rem; color: var(--mist); }
.pillar .more { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; color: var(--marine); text-transform: uppercase; }
.pillar[open] .more { color: var(--mist); }
.pillar[open] .more .plus { transform: rotate(45deg); }
.plus { display: inline-block; transition: transform 0.2s; }
.pbody { padding: 0 1.8rem 1.8rem; }
.pbody ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 0.7rem; }
.pbody li { position: relative; padding-left: 1.4rem; font-size: 0.95rem; color: var(--ink); line-height: 1.5; }
.pbody li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 6px; height: 6px; border-radius: 50%; background: var(--aqua); }
.pillar--ai .pbody li::before { background: var(--gold); }

/* ---------- people/process/tech ---------- */
.ppt { display: grid; grid-template-columns: 1fr; gap: 1px; background: var(--line-light); border: 1px solid var(--line-light); border-radius: 6px; overflow: hidden; margin-top: 1rem; }
.ppt-row { display: grid; grid-template-columns: 180px 1fr 1fr; background: var(--paper); }
.ppt-row.head { background: var(--foam); }
@media (max-width: 760px) { .ppt-row, .ppt-row.head { grid-template-columns: 1fr; } .ppt-cell.axis { border-bottom: none; } }
.ppt-cell { padding: 1.2rem 1.4rem; border-right: 1px solid var(--line-light); }
.ppt-cell:last-child { border-right: none; }
.ppt-row.head .ppt-cell { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--marine); }
.ppt-row.head .ppt-cell.fut { color: var(--gold); filter: brightness(0.8); }
.ppt-cell.axis { font-family: var(--font-display); font-size: 1.15rem; color: var(--ink); display: flex; align-items: center; }
.ppt-cell.cur { color: var(--mist); font-size: 0.94rem; }
.ppt-cell.fut { color: var(--ink); font-size: 0.94rem; }
.arrow-note { font-family: var(--font-mono); font-size: 0.72rem; color: var(--mist); letter-spacing: 0.05em; margin-top: 1rem; }

/* ---------- roadmap ---------- */
.roadmap-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1.5rem; margin-bottom: 2.4rem; }
.livepill { display: inline-flex; align-items: center; gap: 0.55rem; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--aqua); border: 1px solid var(--line-dark); border-radius: 999px; padding: 0.45rem 0.9rem; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--aqua); box-shadow: 0 0 0 0 rgba(51,214,194,0.6); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(51,214,194,0.5); } 70% { box-shadow: 0 0 0 8px rgba(51,214,194,0); } 100% { box-shadow: 0 0 0 0 rgba(51,214,194,0); } }

.timeline-scroll { overflow-x: auto; padding-bottom: 0.5rem; }
.timeline { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(230px, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: 6px; min-width: 720px; }
.phase { background: var(--deep-2); padding: 1.4rem 1.3rem; display: flex; flex-direction: column; gap: 1rem; }
.phase-head { display: flex; align-items: baseline; gap: 0.6rem; border-bottom: 1px solid var(--line-dark); padding-bottom: 0.9rem; }
.phase-head .pn { font-family: var(--font-mono); font-size: 0.72rem; color: var(--aqua); letter-spacing: 0.1em; }
.phase-head .pt { font-family: var(--font-mono); font-size: 0.78rem; color: #fff; letter-spacing: 0.05em; font-variant-numeric: tabular-nums; }
.phase--beyond .phase-head .pn, .phase--beyond .phase-head .pt { color: var(--gold-soft); }
.task { display: flex; flex-direction: column; gap: 0.4rem; }
.task .tt { font-size: 0.92rem; color: #eaf6f4; line-height: 1.4; }
.chip { align-self: flex-start; font-family: var(--font-mono); font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.18rem 0.5rem; border-radius: 3px; }
.chip--in { background: rgba(51,214,194,0.14); color: var(--aqua-soft); }
.chip--co { background: rgba(228,178,90,0.16); color: var(--gold-soft); }
.chip--cae { background: rgba(143,176,179,0.16); color: var(--mist-dark); }
.roadmap-empty { padding: 2.5rem 1.5rem; text-align: center; border: 1px dashed var(--line-dark); border-radius: 6px; color: var(--mist-dark); font-family: var(--font-mono); font-size: 0.82rem; letter-spacing: 0.04em; }

/* multi-year horizon strip (Year 1/2/3) — lighter than the day-bands */
.horizon-label { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--mist-dark); margin: 2.2rem 0 1rem; padding-top: 1.6rem; border-top: 1px solid var(--line-dark); }
.horizon-scroll { overflow-x: auto; padding-bottom: 0.5rem; }
.horizon { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(220px, 1fr); gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: 6px; min-width: 620px; }
.hz-col { background: var(--deep-2); padding: 1.3rem; display: flex; flex-direction: column; gap: 0.85rem; border-top: 3px solid var(--aqua); }
.hz-col:nth-child(2) { border-top-color: var(--aqua-soft); }
.hz-col:nth-child(3) { border-top-color: var(--gold); }
.hz-head { display: flex; flex-direction: column; gap: 0.25rem; }
.hz-year { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; color: var(--aqua); }
.hz-col:nth-child(3) .hz-year { color: var(--gold-soft); }
.hz-theme { font-family: var(--font-display); font-size: 1.2rem; color: #fff; }
.hz-col ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.hz-col li { position: relative; padding-left: 1.1rem; font-size: 0.88rem; color: var(--mist-dark); line-height: 1.45; }
.hz-col li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 5px; height: 5px; border-radius: 50%; background: var(--aqua); }
.hz-col:nth-child(3) li::before { background: var(--gold); }
.roadmap-note { margin-top: 1.8rem; font-size: 0.92rem; color: var(--mist-dark); max-width: 68ch; }
.roadmap-note b { color: var(--aqua); font-weight: 500; }

.legend { display: flex; flex-wrap: wrap; gap: 1.2rem; margin-top: 1.4rem; font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--mist-dark); }
.legend span { display: inline-flex; align-items: center; gap: 0.45rem; }
.swatch { width: 11px; height: 11px; border-radius: 2px; }

/* ---------- closing ---------- */
.close-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 2rem; }
@media (max-width: 760px) { .close-grid { grid-template-columns: 1fr; } }
.step { border-left: 2px solid var(--aqua); padding: 0.3rem 0 0.3rem 1.3rem; }
.step .d { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.12em; color: var(--aqua); text-transform: uppercase; }
.step h3 { font-size: 1.15rem; color: #fff; margin: 0.5rem 0 0.4rem; }
.step p { font-size: 0.92rem; color: var(--mist-dark); }

footer { padding: 2.5rem clamp(1rem, 4vw, 2.5rem); background: var(--abyss); border-top: 1px solid var(--line-dark); }
.foot-inner { max-width: var(--maxw); margin: 0 auto; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; align-items: center; }
.foot-inner .brand { opacity: 0.9; }
.foot-inner p { font-family: var(--font-mono); font-size: 0.68rem; color: var(--mist); letter-spacing: 0.06em; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
:focus-visible { outline: 2px solid var(--aqua); outline-offset: 3px; border-radius: 2px; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .scrollcue span, .dot { animation: none; }
  * { scroll-behavior: auto !important; }
}
html { scroll-behavior: smooth; }