/* ==========================================================================
   Total Physics Inc. — totalphysics.ai
   Single stylesheet. Token-driven. See docs/brand.md.

   1  tokens            7  loop diagram
   2  reset & base      8  gallery
   3  typography        9  pipeline / sectors / team
   4  layout            10 CTA / footer
   5  header & nav      11 contact page & form
   6  hero & sections   12 utilities, motion, print
   ========================================================================== */

/* 1 — TOKENS ============================================================== */

:root {
  /* surfaces */
  --paper:        #FBFAF7;
  --paper-raised: #FFFFFF;
  --paper-sunk:   #F2F0EB;
  --paper-ink:    #12141A;

  /* ink */
  --ink:     #12141A;
  --ink-2:   #464C56;
  --ink-3:   #6E7681;
  --ink-inv: #FBFAF7;

  /* structure */
  --rule:        #E3DFD6;
  --rule-strong: #C9C3B6;

  /* accent — blue flows out (propose), warm flows back (verify) */
  --accent:      #1B3FD6;
  --accent-soft: #E8ECFC;
  --warm:        #C25A18;
  --warm-soft:   #FAEDE2;

  /* simulation field gradient */
  --field-0: #12307E;
  --field-1: #1487B8;
  --field-2: #2FA86A;
  --field-3: #E3B71B;
  --field-4: #CC3F1D;

  /* type */
  --ff-display: "Instrument Serif", "Iowan Old Style", Palatino, Georgia, serif;
  --ff-body:    "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
                "Helvetica Neue", Arial, sans-serif;
  --ff-mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --fs-display: clamp(2.75rem, 1.3rem + 6.4vw, 5.75rem);
  --fs-h2:      clamp(2rem, 1.15rem + 3.4vw, 3.375rem);
  --fs-h3:      clamp(1.3125rem, 1.19rem + 0.5vw, 1.625rem);
  --fs-lead:    clamp(1.0625rem, 0.98rem + 0.38vw, 1.3125rem);
  --fs-body:    clamp(1rem, 0.98rem + 0.1vw, 1.0625rem);
  --fs-sm:      clamp(0.875rem, 0.86rem + 0.08vw, 0.9375rem);
  --fs-xs:      clamp(0.75rem, 0.74rem + 0.04vw, 0.78125rem);

  /* space */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px; --sp-5: 24px;
  --sp-6: 32px; --sp-7: 48px; --sp-8: 64px; --sp-9: 96px; --sp-10: 128px;
  --sp-section: clamp(80px, 11vw, 160px);

  --w-content: 1240px;
  --w-prose:   68ch;
  --gutter:    clamp(20px, 5vw, 56px);

  /* shape */
  --r-sm: 4px; --r-md: 8px; --r-lg: 14px;

  /* motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-io:  cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 180ms;
  --dur-mid:  420ms;
  --dur-slow: 900ms;

  --nav-h: 68px;
}

/* 2 — RESET & BASE ======================================================== */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + var(--sp-5));
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-2);
  font-family: var(--ff-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  font-feature-settings: "kern" 1, "liga" 1, "cv05" 1;
}

img, svg, canvas { display: block; max-width: 100%; }
img { height: auto; }

h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }

button, input, select, textarea { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

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

.skip {
  position: absolute; left: var(--sp-4); top: -100px; z-index: 200;
  background: var(--ink); color: var(--ink-inv);
  padding: var(--sp-3) var(--sp-5); border-radius: var(--r-sm);
  font: 500 var(--fs-sm)/1 var(--ff-body); text-decoration: none;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip:focus { top: var(--sp-4); }

/* 3 — TYPOGRAPHY ========================================================== */

.h1, .h2, .h3 { color: var(--ink); font-weight: 400; }

.h1 {
  font-family: var(--ff-display);
  font-size: var(--fs-display);
  line-height: 1.0;
  letter-spacing: -0.021em;
  text-wrap: balance;
}

.h2 {
  font-family: var(--ff-display);
  font-size: var(--fs-h2);
  line-height: 1.06;
  letter-spacing: -0.018em;
  max-width: 20ch;
  text-wrap: balance;
}

.h3 {
  font-family: var(--ff-body);
  font-size: var(--fs-h3);
  font-weight: 550;
  line-height: 1.24;
  letter-spacing: -0.012em;
}

.eyebrow {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  font-weight: 450;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}
.eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
  max-width: 120px;
}

.lead {
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 58ch;
  text-wrap: pretty;
}

.mono {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.note {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--ink-3);
  line-height: 1.6;
}

/* 4 — LAYOUT ============================================================== */

.wrap {
  width: 100%;
  max-width: var(--w-content);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--wide { max-width: 1480px; }

.section { padding-block: var(--sp-section); position: relative; }
.section--sunk { background: var(--paper-sunk); }
.section--ruled { border-top: 1px solid var(--rule); }

.section__head { max-width: var(--w-prose); }
.section__head .lead { margin-top: var(--sp-5); }

.grid { display: grid; gap: var(--sp-5); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1040px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 720px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  padding: 14px var(--sp-5);
  min-height: 46px;
  border: 1px solid var(--ink);
  border-radius: var(--r-sm);
  background: var(--ink);
  color: var(--ink-inv);
  font-size: var(--fs-sm);
  font-weight: 500;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.btn:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-1px); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--rule-strong); }
.btn--ghost:hover { background: var(--ink); border-color: var(--ink); color: var(--ink-inv); }

.btn__arrow { transition: transform var(--dur-fast) var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* card */

.card {
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  transition: border-color var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.card:hover { border-color: var(--rule-strong); }
.card__n {
  font-family: var(--ff-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: var(--sp-1);
}
.card p { font-size: var(--fs-sm); line-height: 1.6; color: var(--ink-2); }

/* 5 — HEADER & NAV ======================================================== */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}
.nav.is-stuck {
  border-bottom-color: var(--rule);
  box-shadow: 0 1px 24px rgba(18, 20, 26, 0.045);
}
.nav__inner {
  width: 100%; max-width: var(--w-content);
  margin-inline: auto; padding-inline: var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-5);
}

.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
.brand__mark { width: 22px; height: 22px; flex: none; }
.brand__txt {
  font-family: var(--ff-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.19em;
  color: var(--ink);
  text-transform: uppercase;
}

.nav__links { display: flex; align-items: center; gap: var(--sp-6); }
.nav__links a {
  font-size: var(--fs-sm);
  color: var(--ink-2);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a.is-cta {
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-sm);
  padding: 8px var(--sp-4);
  color: var(--ink);
}
.nav__links a.is-cta:hover { background: var(--ink); color: var(--ink-inv); border-color: var(--ink); }

.nav__toggle {
  display: none;
  background: none; border: 1px solid var(--rule-strong);
  border-radius: var(--r-sm); padding: 9px 11px; cursor: pointer;
}
.nav__toggle span { display: block; width: 17px; height: 1.5px; background: var(--ink); }
.nav__toggle span + span { margin-top: 4px; }

@media (max-width: 720px) {
  /* On a phone the headline spans the full canvas, so the field can no longer
     be cleared sideways — veil it into a texture across the text band instead. */
  .hero__veil {
    background: linear-gradient(to bottom,
      var(--paper) 0%,
      color-mix(in srgb, var(--paper) 55%, transparent) 13%,
      color-mix(in srgb, var(--paper) 90%, transparent) 27%,
      color-mix(in srgb, var(--paper) 90%, transparent) 84%,
      var(--paper) 100%);
  }

  .nav__toggle { display: block; }
  .nav__links {
    position: absolute; inset: var(--nav-h) 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--rule);
    padding: var(--sp-3) var(--gutter) var(--sp-5);
    display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { padding: var(--sp-4) 0; border-bottom: 1px solid var(--rule); }
  .nav__links a.is-cta { border: 1px solid var(--ink); text-align: center; margin-top: var(--sp-4); }
}

/* 6 — HERO & SECTIONS ===================================================== */

.hero {
  position: relative;
  min-height: min(92vh, 900px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-block: var(--sp-10) var(--sp-8);
  overflow: hidden;
  isolation: isolate;
}

.hero__field {
  position: absolute; inset: 0;
  z-index: -1;
  width: 100%; height: 100%;
  opacity: 0.9;
}
/* keeps headline contrast independent of whatever the field is doing */
.hero__veil {
  position: absolute; inset: 0; z-index: -1;
  /* The radial clears the text column and goes fully transparent just past its
     right edge (~66%), so the field reads strongly beside the headline without
     ever sitting behind it. */
  background:
    radial-gradient(86% 84% at 4% 46%, var(--paper) 0%,
      color-mix(in srgb, var(--paper) 84%, transparent) 44%, transparent 72%),
    linear-gradient(to bottom, var(--paper) 0%, transparent 18%, transparent 78%, var(--paper) 100%);
  pointer-events: none;
}

.hero__inner { max-width: 940px; }
.hero .eyebrow { margin-bottom: var(--sp-6); }
.hero .lead { margin-top: var(--sp-6); max-width: 60ch; }

.hero__actions {
  display: flex; flex-wrap: wrap; gap: var(--sp-3);
  margin-top: var(--sp-7);
}

.hero__rail {
  margin-top: var(--sp-9);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--rule);
  display: flex; flex-wrap: wrap; align-items: baseline;
  gap: var(--sp-3) var(--sp-5);
}
.hero__rail .mono { color: var(--ink-3); }
.hero__rail .mono strong {
  color: var(--ink); font-weight: 500;
}
.hero__domains { display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-4); }
.hero__domains span { position: relative; }
.hero__domains span + span::before {
  content: "·"; position: absolute; left: calc(var(--sp-4) / -2 - 2px); color: var(--rule-strong);
}

/* status dot */
.dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--field-2); flex: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--field-2) 18%, transparent);
}

/* 7 — LOOP DIAGRAM ======================================================== */

.loop {
  position: relative;
  margin-top: var(--sp-8);
  padding: clamp(24px, 3.5vw, 52px);
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  overflow: hidden;
}

.loop__meta {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-4); flex-wrap: wrap;
  margin-bottom: clamp(20px, 2.4vw, 34px);
  padding-bottom: var(--sp-4);
  border-bottom: 1px solid var(--rule);
}
.loop__title { display: flex; align-items: center; gap: var(--sp-3); }
.loop__counter { font-variant-numeric: tabular-nums; }
.loop__counter b { color: var(--ink); font-weight: 500; }

.loop__stage {
  position: relative;
  display: grid;
  /* The gap is where the loop lives. It has to stay wider than the vertical
     spread of the two arcs, or they close into a circle and stop reading as
     two directional flows. */
  gap: clamp(36px, 10vw, 156px);
  grid-template-columns: minmax(180px, 1fr) minmax(210px, 1.05fr) minmax(180px, 1fr);
  align-items: center;
}

/* wires (SVG) and particles (canvas) both sit behind the node boxes */
.loop__wires,
.loop__particles {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.loop__wires { overflow: visible; }

/* path annotations — pinned to each arc's apex by JS, drawn above the boxes
   with an opaque chip so they stay legible wherever the layout puts them */
.loop__lab {
  position: absolute;
  z-index: 3;
  transform: translate(-50%, -50%);
  white-space: nowrap;
  font-family: var(--ff-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  padding: 3px 8px;
  opacity: 0.75;
  transition: color var(--dur-mid) var(--ease-out),
              border-color var(--dur-mid) var(--ease-out),
              opacity var(--dur-mid) var(--ease-out);
}
.loop__lab--out.is-on {
  opacity: 1; color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}
.loop__lab--back.is-on {
  opacity: 1; color: var(--warm);
  border-color: color-mix(in srgb, var(--warm) 40%, transparent);
}

.loop__ingests { display: grid; gap: clamp(12px, 1.6vw, 20px); }

.lnode {
  position: relative;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: var(--sp-4) var(--sp-5);
  transition: border-color var(--dur-mid) var(--ease-out),
              box-shadow var(--dur-mid) var(--ease-out),
              transform var(--dur-mid) var(--ease-out);
}
.lnode__k {
  font-family: var(--ff-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-3);
  display: block;
  margin-bottom: var(--sp-2);
  transition: color var(--dur-mid) var(--ease-out);
}
.lnode__t {
  font-size: var(--fs-sm);
  font-weight: 550;
  color: var(--ink);
  line-height: 1.3;
  display: block;
}
.lnode__d {
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--ink-3);
  margin-top: 6px;
}

/* ingest active */
.lnode--ingest.is-active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.lnode--ingest.is-active .lnode__k { color: var(--accent); }

/* core */
.lnode--core {
  padding: clamp(20px, 2.6vw, 30px);
  border-color: var(--rule-strong);
  text-align: center;
  overflow: hidden;
  isolation: isolate;
}
.lnode--core::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(148deg,
    var(--field-0) 0%, var(--field-1) 28%, var(--field-2) 52%,
    var(--field-3) 76%, var(--field-4) 100%);
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-io);
}
.lnode--core.is-charged::before { opacity: 0.1; }
.lnode--core.is-learning { border-color: var(--warm); box-shadow: 0 0 0 4px var(--warm-soft); }
.lnode--core.is-proposing { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }

.core__t {
  font-family: var(--ff-display);
  font-size: clamp(1.375rem, 1.1rem + 1.1vw, 1.875rem);
  line-height: 1.08;
  color: var(--ink);
  letter-spacing: -0.015em;
}
.core__facets {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 6px var(--sp-3);
  margin-top: var(--sp-4);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--rule);
}
.core__facets li {
  font-family: var(--ff-mono);
  font-size: 0.625rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* knowledge ring — one tick per completed cycle */
.core__ring { display: flex; justify-content: center; gap: 3px; margin-top: var(--sp-4); }
.core__ring i {
  width: 9px; height: 3px; border-radius: 1px;
  background: var(--rule-strong);
  transition: background var(--dur-mid) var(--ease-out);
}
.core__ring i.is-on { background: var(--field-2); }

/* solver */
.lnode--solver { padding: var(--sp-5); }
.lnode--solver.is-active { border-color: var(--warm); box-shadow: 0 0 0 3px var(--warm-soft); }
.lnode--solver.is-active .lnode__k { color: var(--warm); }

.solver__chips { display: flex; flex-wrap: wrap; gap: 5px; margin-top: var(--sp-4); }
.solver__chips li {
  font-family: var(--ff-mono);
  font-size: 0.625rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--ink-3);
  border: 1px solid var(--rule);
  border-radius: var(--r-sm);
  padding: 3px 7px;
  transition: color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}
.solver__chips li.is-lit {
  color: var(--warm);
  border-color: color-mix(in srgb, var(--warm) 45%, transparent);
  background: var(--warm-soft);
}

/* scan line sweeping the solver during S3 */
.solver__scan {
  position: absolute; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--warm), transparent);
  opacity: 0; pointer-events: none;
}

.loop__caption {
  margin-top: clamp(22px, 2.6vw, 34px);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--rule);
  display: flex; justify-content: space-between; gap: var(--sp-4); flex-wrap: wrap;
}

/* human-engineer mapping */
.mapping { margin-top: var(--sp-7); }
.mapping__item {
  border-top: 2px solid var(--rule);
  padding-top: var(--sp-4);
  transition: border-color var(--dur-mid) var(--ease-out);
}
.mapping__item.is-active { border-top-color: var(--accent); }
.mapping__k {
  font-family: var(--ff-display);
  font-size: 1.375rem;
  color: var(--ink);
  display: block;
  margin-bottom: 6px;
}
.mapping__item p { font-size: 0.875rem; line-height: 1.55; color: var(--ink-3); }
.mapping__item.is-active p { color: var(--ink-2); }

@media (max-width: 860px) {
  /* the gap has to hold two stacked path labels plus the arcs */
  .loop__stage { grid-template-columns: 1fr; gap: clamp(96px, 14vw, 118px); }
  .loop__ingests { grid-template-columns: repeat(3, 1fr); gap: var(--sp-3); }
  .lnode--core, .lnode--solver { max-width: 460px; margin-inline: auto; width: 100%; }
  .loop__lab { font-size: 0.625rem; letter-spacing: 0.06em; padding: 3px 6px; }
}
@media (max-width: 620px) {
  .loop__ingests { grid-template-columns: 1fr; }
}

/* 8 — GALLERY ============================================================= */

.gallery { margin-top: var(--sp-8); }
.gallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--sp-5);
}

.shot {
  position: relative;
  background: var(--paper-raised);
  border: 1px solid var(--rule);
  border-radius: var(--r-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color var(--dur-mid) var(--ease-out),
              transform var(--dur-mid) var(--ease-out);
}
.shot:hover { border-color: var(--rule-strong); transform: translateY(-3px); }

.shot__media {
  position: relative;
  background: #fff;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.shot__media img {
  width: 100%; height: 100%;
  object-fit: contain;
  padding: var(--sp-3);
  transition: transform var(--dur-slow) var(--ease-out);
}
.shot:hover .shot__media img { transform: scale(1.035); }

.shot__body {
  padding: var(--sp-4) var(--sp-5) var(--sp-5);
  border-top: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 6px;
  flex: 1;
}
.shot__top { display: flex; align-items: baseline; justify-content: space-between; gap: var(--sp-3); }
.shot__domain {
  font-family: var(--ff-mono); font-size: 0.6875rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink);
}
.shot__readout {
  font-family: var(--ff-mono); font-size: 0.6875rem; letter-spacing: 0.04em;
  color: var(--warm); white-space: nowrap;
}
.shot__cap { font-size: 0.8125rem; line-height: 1.5; color: var(--ink-3); }

/* 9 — PIPELINE / SECTORS / TEAM =========================================== */

.pipe { margin-top: var(--sp-8); border-top: 1px solid var(--rule); }
.pipe__row {
  display: grid;
  grid-template-columns: 88px minmax(0, 260px) minmax(0, 1fr);
  gap: var(--sp-5);
  align-items: start;
  padding-block: var(--sp-6);
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.pipe__row::after {
  content: ""; position: absolute; left: 0; bottom: -1px; height: 1px; width: 0;
  background: var(--accent);
  transition: width var(--dur-slow) var(--ease-out);
}
.pipe__row.is-in::after { width: 100%; }
.pipe__n {
  font-family: var(--ff-mono); font-size: var(--fs-xs);
  letter-spacing: 0.1em; color: var(--ink-3); padding-top: 5px;
}
.pipe__t { font-size: var(--fs-h3); font-weight: 550; color: var(--ink); line-height: 1.2; letter-spacing: -0.01em; }
.pipe__d { font-size: var(--fs-sm); color: var(--ink-2); line-height: 1.6; max-width: 56ch; }

@media (max-width: 720px) {
  .pipe__row { grid-template-columns: 56px 1fr; }
  .pipe__d { grid-column: 2; }
}

.sector {
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-5) var(--sp-6);
  background: var(--paper-raised);
  display: flex; flex-direction: column; gap: var(--sp-4);
  transition: border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.sector:hover { border-color: var(--rule-strong); transform: translateY(-2px); }
.sector__bar { height: 3px; border-radius: 2px; width: 44px; }
.sector__t { font-size: var(--fs-sm); font-weight: 550; color: var(--ink); }
.sector__d { font-size: 0.8125rem; color: var(--ink-3); line-height: 1.55; }

.stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-5); margin-top: var(--sp-7);
  border-top: 1px solid var(--rule); padding-top: var(--sp-6);
}
.stat__v {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 1.3rem + 2.6vw, 3rem);
  line-height: 1; color: var(--ink); letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.stat__l { margin-top: var(--sp-3); }
@media (max-width: 720px) { .stats { grid-template-columns: 1fr; gap: var(--sp-6); } }

/* --- what does not work -------------------------------------------------
   Deliberately recessive: dashed borders, muted ink, no raised surface. These
   must never read as options we offer — the visual weight belongs to .ours. */

.dead { margin-top: var(--sp-8); }
.dead__head { color: var(--ink-3); margin-bottom: var(--sp-4); }
.dead__grid { display: grid; gap: var(--sp-5); grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .dead__grid { grid-template-columns: 1fr; } }

.dead__item {
  border: 1px dashed var(--rule-strong);
  border-radius: var(--r-md);
  padding: var(--sp-5) var(--sp-6) var(--sp-6);
  background: transparent;
}
.dead__t {
  display: flex; align-items: baseline; gap: var(--sp-3);
  font-size: var(--fs-h3); font-weight: 550; letter-spacing: -0.01em;
  color: var(--ink-3);
  margin-bottom: var(--sp-3);
}
.dead__x { color: var(--warm); font-size: 0.875rem; flex: none; }
.dead__d { font-size: var(--fs-sm); line-height: 1.6; color: var(--ink-3); }
.dead__why {
  margin-top: var(--sp-4); padding-top: var(--sp-3);
  border-top: 1px dashed var(--rule);
  font-size: var(--fs-sm); line-height: 1.6; color: var(--ink-2);
}
.dead__why b { color: var(--warm); font-weight: 500; }

/* --- what we do instead -------------------------------------------------- */

.ours {
  margin-top: var(--sp-6);
  position: relative;
  background: var(--paper-raised);
  border: 1px solid var(--ink);
  border-radius: var(--r-lg);
  padding: clamp(28px, 4vw, 56px);
  overflow: hidden;
}
.ours::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg,
    var(--field-0), var(--field-1), var(--field-2), var(--field-3), var(--field-4));
}
.ours__tag {
  font-family: var(--ff-mono); font-size: var(--fs-xs);
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent);
  margin-bottom: var(--sp-3);
}
.ours__t {
  font-family: var(--ff-display);
  font-size: clamp(1.75rem, 1.2rem + 2.2vw, 2.625rem);
  line-height: 1.06; letter-spacing: -0.018em; color: var(--ink);
  font-weight: 400;
}
.ours__d {
  margin-top: var(--sp-4);
  font-size: var(--fs-lead); line-height: 1.5; color: var(--ink-2); max-width: 56ch;
}
.ours__pts {
  display: grid; gap: var(--sp-4);
  grid-template-columns: repeat(3, 1fr);
  margin-top: var(--sp-7);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--rule);
}
.ours__pts li { font-size: var(--fs-sm); line-height: 1.6; color: var(--ink-2); }
.ours__pts b { display: block; color: var(--ink); font-weight: 550; margin-bottom: 2px; }
@media (max-width: 860px) { .ours__pts { grid-template-columns: 1fr; gap: var(--sp-5); } }

.quote {
  margin-top: var(--sp-8);
  padding: var(--sp-7) 0 0;
  border-top: 1px solid var(--rule);
  font-family: var(--ff-display);
  font-size: clamp(1.5rem, 1rem + 2vw, 2.375rem);
  line-height: 1.16;
  letter-spacing: -0.018em;
  color: var(--ink);
  max-width: 24ch;
}
.quote--tight {
  margin-top: var(--sp-6);
  padding-top: var(--sp-5);
  font-size: clamp(1.25rem, 0.95rem + 1.3vw, 1.75rem);
  max-width: 30ch;
}

/* --- where it applies (inside the production section) -------------------- */

.applies { margin-top: var(--sp-9); }
.applies__h { color: var(--ink); }
.applies__lead {
  margin: var(--sp-3) 0 var(--sp-6);
  font-size: var(--fs-sm); color: var(--ink-2); max-width: 56ch; line-height: 1.6;
}

/* 10 — CTA & FOOTER ======================================================= */

.cta {
  background: var(--paper-ink);
  color: var(--ink-inv);
  padding-block: clamp(72px, 9vw, 128px);
  position: relative;
  overflow: hidden;
}
.cta::before {
  content: ""; position: absolute; inset: auto 0 0 0; height: 3px;
  background: linear-gradient(90deg,
    var(--field-0), var(--field-1), var(--field-2), var(--field-3), var(--field-4));
}
.cta .h2 { color: var(--ink-inv); max-width: 22ch; }
.cta .eyebrow { color: rgba(251, 250, 247, 0.5); }
.cta .eyebrow::after { background: rgba(251, 250, 247, 0.18); }
.cta p { color: rgba(251, 250, 247, 0.72); max-width: 52ch; margin-top: var(--sp-5); font-size: var(--fs-lead); line-height: 1.5; }
.cta .btn {
  margin-top: var(--sp-7);
  background: var(--ink-inv); color: var(--ink); border-color: var(--ink-inv);
}
.cta .btn:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

.foot { border-top: 1px solid var(--rule); padding-block: var(--sp-7); }
.foot__inner { display: flex; flex-wrap: wrap; gap: var(--sp-6); justify-content: space-between; align-items: flex-start; }
.foot__links { display: flex; flex-wrap: wrap; gap: var(--sp-5); }
.foot__links a { color: var(--ink-2); text-decoration: none; font-size: var(--fs-sm); }
.foot__links a:hover { color: var(--ink); text-decoration: underline; }
.foot__legal { display: flex; flex-wrap: wrap; gap: var(--sp-4); align-items: center; }

/* 11 — CONTACT PAGE & FORM ================================================ */

.contact-hero {
  padding-block: calc(var(--sp-9) + var(--sp-5)) var(--sp-8);
  position: relative;
  overflow: hidden;
  isolation: isolate; /* keeps the z-index:-1 field canvas inside this section */
}
.contact-hero .h1 { max-width: 12ch; }
.contact-hero .lead { margin-top: var(--sp-5); }

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
  padding-bottom: var(--sp-section);
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.form { display: grid; gap: var(--sp-5); }
.field { display: grid; gap: var(--sp-2); }
.field > label {
  font-family: var(--ff-mono); font-size: var(--fs-xs);
  letter-spacing: 0.13em; text-transform: uppercase; color: var(--ink-3);
}
.field > label .req { color: var(--warm); }

.input, .select, .textarea {
  width: 100%;
  background: var(--paper-raised);
  border: 1px solid var(--rule-strong);
  border-radius: var(--r-sm);
  padding: 13px var(--sp-4);
  font-size: var(--fs-body);
  color: var(--ink);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.input::placeholder, .textarea::placeholder { color: var(--ink-3); opacity: 0.75; }
.input:focus, .select:focus, .textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.textarea { resize: vertical; min-height: 148px; line-height: 1.6; }
.select {
  appearance: none;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%236E7681' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--sp-4) center;
  padding-right: var(--sp-8);
}
.field[data-invalid="true"] .input,
.field[data-invalid="true"] .textarea { border-color: var(--warm); }
.field__err { font-size: var(--fs-xs); color: var(--warm); font-family: var(--ff-mono); letter-spacing: 0.03em; }

.form__foot { display: flex; align-items: center; gap: var(--sp-5); flex-wrap: wrap; }
.form__status { font-size: var(--fs-sm); }
.form__status[data-state="error"] { color: var(--warm); }
.form__status[data-state="ok"] { color: var(--ink); }

.form.is-sent { display: none; }
.form-done {
  display: none;
  border: 1px solid var(--rule-strong);
  border-left: 3px solid var(--field-2);
  border-radius: var(--r-md);
  background: var(--paper-raised);
  padding: var(--sp-6);
}
.form-done.is-shown { display: block; }

.aud { display: grid; gap: var(--sp-5); }
.aud__item { border-top: 1px solid var(--rule); padding-top: var(--sp-4); }
.aud__t { font-size: var(--fs-sm); font-weight: 550; color: var(--ink); margin-bottom: 6px; }
.aud__d { font-size: 0.8125rem; line-height: 1.6; color: var(--ink-3); }

.direct {
  margin-top: var(--sp-7); padding-top: var(--sp-5);
  border-top: 1px solid var(--rule);
}

/* 13 — ADMIN (admin.html only) ============================================ */

.btn--sm { min-height: 36px; padding: 8px var(--sp-4); font-size: var(--fs-xs); }

code {
  font-family: var(--ff-mono); font-size: 0.9em;
  background: var(--paper-sunk); border: 1px solid var(--rule);
  border-radius: var(--r-sm); padding: 1px 5px;
}

.chip {
  font-family: var(--ff-mono); font-size: var(--fs-xs);
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-3); background: var(--paper-raised);
  border: 1px solid var(--rule); border-radius: var(--r-sm);
  padding: 7px var(--sp-4); min-height: 34px; cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              background var(--dur-fast) var(--ease-out);
}
.chip:hover { color: var(--ink); border-color: var(--rule-strong); }
.chip.is-on { color: var(--ink-inv); background: var(--ink); border-color: var(--ink); }
.chip--sm { padding: 4px 10px; min-height: 28px; }

.adm { padding-block: var(--sp-8) var(--sp-9); min-height: 70vh; }
.adm__card {
  background: var(--paper-raised); border: 1px solid var(--rule);
  border-radius: var(--r-lg); padding: clamp(28px, 4vw, 52px);
  max-width: 760px;
}
.adm__card--narrow { max-width: 460px; margin-inline: auto; }
.adm__setup, .adm__gate { padding-block: var(--sp-8); }

.adm__head {
  display: flex; flex-wrap: wrap; gap: var(--sp-5);
  justify-content: space-between; align-items: flex-end;
  padding-bottom: var(--sp-5); border-bottom: 1px solid var(--rule);
}
.adm__stats { display: flex; gap: var(--sp-6); }
.adm__stat { display: flex; flex-direction: column; gap: 2px; }
.adm__stat b {
  font-family: var(--ff-display); font-size: 1.75rem; font-weight: 400;
  line-height: 1; color: var(--ink); font-variant-numeric: tabular-nums;
}

.adm__tools {
  display: flex; flex-wrap: wrap; gap: var(--sp-4);
  justify-content: space-between; align-items: center;
  margin-block: var(--sp-5);
}
.adm__filters { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.adm__right { display: flex; gap: var(--sp-3); align-items: center; flex: 1; min-width: 260px; justify-content: flex-end; }
.adm__search { max-width: 340px; padding: 8px var(--sp-4); font-size: var(--fs-sm); }

.adm__list { display: grid; gap: var(--sp-3); margin-top: var(--sp-4); }
.adm__empty { color: var(--ink-3); font-size: var(--fs-sm); padding: var(--sp-8) 0; text-align: center; }

.adm__row {
  background: var(--paper-raised); border: 1px solid var(--rule);
  border-left: 3px solid var(--rule-strong);
  border-radius: var(--r-md); overflow: hidden;
  transition: border-color var(--dur-fast) var(--ease-out);
}
.adm__row.is-new       { border-left-color: var(--accent); }
.adm__row.is-contacted { border-left-color: var(--field-2); }
.adm__row.is-archived  { border-left-color: var(--rule-strong); opacity: 0.72; }
.adm__row.is-spam      { border-left-color: var(--warm); opacity: 0.55; }
.adm__row.is-open { border-color: var(--rule-strong); }

.adm__rowhead {
  width: 100%; display: flex; flex-wrap: wrap; gap: var(--sp-3);
  align-items: center; justify-content: space-between;
  background: none; border: 0; cursor: pointer; text-align: left;
  padding: var(--sp-4) var(--sp-5);
}
.adm__rowhead:hover { background: var(--paper-sunk); }
.adm__who { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--sp-3); min-width: 0; }
.adm__who b { color: var(--ink); font-weight: 550; font-size: var(--fs-sm); }
.adm__org { color: var(--ink-3); font-size: var(--fs-sm); }
.adm__meta { display: flex; align-items: center; gap: var(--sp-4); }
.adm__status {
  font-family: var(--ff-mono); font-size: 0.625rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-3);
  border: 1px solid var(--rule); border-radius: var(--r-sm); padding: 2px 7px;
}
.is-new .adm__status { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.adm__when { color: var(--ink-3); white-space: nowrap; }

.adm__body { padding: 0 var(--sp-5) var(--sp-5); border-top: 1px solid var(--rule); }
.adm__dl {
  display: grid; grid-template-columns: max-content 1fr; gap: var(--sp-2) var(--sp-5);
  margin: var(--sp-4) 0 0;
}
.adm__dl dt {
  font-family: var(--ff-mono); font-size: var(--fs-xs);
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3);
}
.adm__dl dd { margin: 0; font-size: var(--fs-sm); color: var(--ink); overflow-wrap: anywhere; }
.adm__msg {
  margin-top: var(--sp-5); padding: var(--sp-4) var(--sp-5);
  background: var(--paper-sunk); border-radius: var(--r-sm);
  font-size: var(--fs-sm); line-height: 1.65; color: var(--ink-2);
  white-space: pre-wrap; overflow-wrap: anywhere;
}
.adm__actions {
  display: flex; flex-wrap: wrap; gap: var(--sp-2); align-items: center;
  margin-top: var(--sp-5); padding-top: var(--sp-4); border-top: 1px solid var(--rule);
}

@media (max-width: 720px) {
  .adm__right { justify-content: flex-start; }
  .adm__dl { grid-template-columns: 1fr; gap: 2px var(--sp-4); }
  .adm__dl dt { margin-top: var(--sp-3); }
}

/* 12 — UTILITIES, MOTION, PRINT =========================================== */

/* Author `display` rules (.btn is inline-flex) outrank the UA stylesheet's
   [hidden] rule, so `hidden` silently stops working on styled elements. */
[hidden] { display: none !important; }

.vh {
  position: absolute !important; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; border: 0;
}

/* Reveal: opt-in via .js so a script failure can never blank the page. */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-mid) var(--ease-out),
              transform var(--dur-mid) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .shot:hover .shot__media img,
  .shot:hover, .sector:hover, .btn:hover { transform: none; }
}

@media print {
  .nav, .hero__field, .loop__wires, .skip { display: none !important; }
  body { background: #fff; }
  .section { padding-block: 24pt; }
}