/* Layout: a ledger. One thesis line on top, then each product as a full-width row (verb · name · what it does · status),
   then the shared foundation and how the products feed each other. Quiet everywhere except the hero line. */
:root {
  --bg: #f4f5f2;        /* cool paper */
  --surface: #ffffff;
  --ink: #12151b;       /* near-black with a blue bias */
  --ink-2: #4a505c;
  --muted: #7b818c;
  --line: #dcdfe3;
  --seal: #2648b8;      /* cobalt: the "-ed" stamp */
  --seal-soft: #e6ebfa;
  --ok: #17803d; --ok-soft: #e3f3e8;
  --wait: #8a5a00; --wait-soft: #f8eed8;
  --font-display: "Bricolage Grotesque", "Avenir Next", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --step-0: 1rem; --step-1: 1.125rem; --step-2: 1.5rem; --step-3: 2.25rem; --step-4: clamp(2.6rem, 7vw, 5.4rem);
  --wrap: 72rem;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1016; --surface: #141822; --ink: #eef0f4; --ink-2: #b4bac6; --muted: #858c99; --line: #262c38;
    --seal: #7d9cf5; --seal-soft: #1b2440; --ok: #5fcf86; --ok-soft: #12291c; --wait: #e2b45a; --wait-soft: #2c2310;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1016; --surface: #141822; --ink: #eef0f4; --ink-2: #b4bac6; --muted: #858c99; --line: #262c38;
  --seal: #7d9cf5; --seal-soft: #1b2440; --ok: #5fcf86; --ok-soft: #12291c; --wait: #e2b45a; --wait-soft: #2c2310;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-padding-top: 72px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 var(--step-0)/1.6 var(--font-body); padding-inline: 20px; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--seal); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: var(--wrap); margin-inline: auto; }
h1, h2, h3 { font-family: var(--font-display); text-wrap: balance; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
.mono { font-family: var(--font-mono); font-size: 0.85em; }
.eyebrow { font: 500 0.78rem/1 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }

/* header */
header.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); margin-inline: -20px; padding-inline: 20px; }
header.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
.brand { display: flex; align-items: center; gap: 10px; font: 700 1.05rem/1 var(--font-display); text-decoration: none; }
.brand-mark { width: 26px; height: 26px; border-radius: 7px; background: var(--ink); display: grid; place-items: center; }
.brand-mark span { width: 10px; height: 10px; border: 2.5px solid var(--bg); border-radius: 50%; }
nav.links { display: flex; gap: 22px; font-size: 0.92rem; color: var(--ink-2); }
nav.links a { text-decoration: none; }
nav.links a:hover { color: var(--ink); }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 9px; font: 600 0.92rem/1 var(--font-body);
  text-decoration: none; background: var(--ink); color: var(--bg); border: 1px solid var(--ink); white-space: nowrap; }
.btn:hover { background: var(--seal); border-color: var(--seal); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--ink); background: transparent; }
@media (max-width: 760px) { nav.links { display: none; } }

.head-actions { display: flex; align-items: center; gap: 10px; }
.lang select { appearance: none; background: transparent; color: var(--ink); border: 1px solid var(--line); border-radius: 8px;
  padding: 8px 10px; font: 500 0.82rem/1 var(--font-mono); cursor: pointer; }
.lang select:focus-visible { outline: 2px solid var(--seal); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.contact { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.contact .addr { font: 500 0.95rem/1 var(--font-mono); padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); user-select: all; }
.copy-note { font-size: 0.8rem; color: var(--muted); min-height: 1em; }
@media (max-width: 480px) { .head-actions .btn { display: none; } }

/* hero */
.hero { padding-block: clamp(56px, 10vw, 112px) 48px; display: grid; gap: 28px; }
.thesis { font-size: var(--step-4); font-weight: 800; line-height: 1.02; }
.thesis .every { color: var(--muted); font-weight: 700; }
.thesis .verb { color: var(--seal); position: relative; white-space: nowrap; }
.thesis .verb::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0.06em; height: 0.08em; background: currentColor; opacity: 0.35; }
.rotor { display: inline-block; }
.rotor.swap { animation: swap 520ms cubic-bezier(.2,.7,.2,1); }
@keyframes swap { from { transform: translateY(0.35em); opacity: 0; } to { transform: none; opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .rotor.swap { animation: none; } }
.lede { max-width: 40rem; font-size: var(--step-1); color: var(--ink-2); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.mottos { display: flex; flex-wrap: wrap; gap: 8px 18px; padding-top: 8px; border-top: 1px solid var(--line); }
.mottos button { background: none; border: 0; padding: 6px 0; font: 500 0.88rem/1 var(--font-mono); color: var(--muted); cursor: pointer; }
.mottos button[aria-pressed="true"] { color: var(--ink); }
.mottos button b { color: var(--seal); font-weight: 500; }

/* sections */
section { padding-block: clamp(48px, 8vw, 88px); border-top: 1px solid var(--line); }
.sec-head { display: grid; gap: 12px; margin-bottom: 36px; max-width: 44rem; }
.sec-head h2 { font-size: var(--step-3); line-height: 1.1; }
.sec-head p { color: var(--ink-2); }
.sec-head.flush { margin: 0; }

/* product ledger */
.ledger { display: grid; }
.row { display: grid; grid-template-columns: 11rem minmax(0, 1fr) minmax(0, 1.2fr); gap: 20px 32px; padding-block: 28px; border-bottom: 1px solid var(--line); align-items: start; }
.row:first-child { border-top: 1px solid var(--ink); }
.verb-big { font: 800 var(--step-3)/1 var(--font-display); color: var(--seal); letter-spacing: -0.03em; }
.who { display: grid; gap: 10px; min-width: 0; }
.who h3 { font-size: var(--step-2); }
.who h3 small { font: 500 0.8rem/1 var(--font-mono); color: var(--muted); margin-left: 8px; letter-spacing: 0; }
.who p { color: var(--ink-2); }
.meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font: 500 0.75rem/1.2 var(--font-mono); letter-spacing: 0.02em; }
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.chip.live { color: var(--ok); background: var(--ok-soft); }
.chip.design { color: var(--seal); background: var(--seal-soft); }
.chip.planned { color: var(--wait); background: var(--wait-soft); }
.host { font: 400 0.8rem/1 var(--font-mono); color: var(--muted); }
.feats { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; min-width: 0; }
.feats li { display: grid; grid-template-columns: 14px minmax(0, 1fr); gap: 10px; color: var(--ink-2); font-size: 0.95rem; }
.feats li::before { content: ""; width: 8px; height: 8px; margin-top: 0.55em; border: 1.5px solid var(--seal); border-radius: 2px; }
.feats b { color: var(--ink); font-weight: 600; }
@media (max-width: 900px) { .row { grid-template-columns: minmax(0, 1fr); } .verb-big { font-size: var(--step-2); } }

/* foundation */
.found { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.found div { background: var(--surface); padding: 24px; display: grid; gap: 8px; align-content: start; }
.found h3 { font-size: var(--step-1); letter-spacing: -0.01em; }
.found p { color: var(--ink-2); font-size: 0.95rem; }
.found .mono { color: var(--seal); }

/* flows */
.flows { display: grid; gap: 0; }
.flow { display: grid; grid-template-columns: 4.5rem 2rem 4.5rem minmax(0, 1fr); gap: 12px; align-items: baseline; padding-block: 16px; border-bottom: 1px dashed var(--line); }
.flow .from, .flow .to { font: 700 var(--step-1)/1 var(--font-display); }
.flow .arrow { color: var(--seal); font-family: var(--font-mono); }
.flow p { color: var(--ink-2); font-size: 0.95rem; }
@media (max-width: 600px) { .flow { grid-template-columns: auto auto auto; } .flow p { grid-column: 1 / -1; } }

/* frameworks */
.frames { display: flex; flex-wrap: wrap; gap: 10px; }
.frames span { padding: 10px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); font: 500 0.88rem/1.2 var(--font-mono); }
.frames span em { font-style: normal; color: var(--muted); }

/* closing */
.close { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: end; }
.close h2 { font-size: var(--step-3); line-height: 1.1; }
@media (max-width: 700px) { .close { grid-template-columns: minmax(0, 1fr); } }
footer { border-top: 1px solid var(--line); padding-block: 28px 40px; color: var(--muted); font-size: 0.85rem; }
footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }