/* ───────────────────────────────────────────────────────────────
   RadonCRM — public marketing site
   Ground: poured concrete. Ink: petrol. The green/amber/clay scale
   is reserved for readings judged against an action level — it is
   never decoration.
   ─────────────────────────────────────────────────────────────── */

:root {
  --slab:    #e6e7e2;
  --slab-2:  #dcded7;
  --sheet:   #ffffff;
  --rule:    #c6c9c0;
  --ink:     #0e2a33;
  --ink-2:   #3d555c;
  --ink-3:   #55696f;

  --under:   #2e7d63;
  --over:    #b5452f;
  --wait:    #8a5f10;

  --wrap:    1180px;
  --gut:     24px;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--slab);
  color: var(--ink);
  font: 400 17px/1.55 'Archivo', system-ui, sans-serif;
  font-synthesis: none;
}

h1, h2, h3 { margin: 0; text-wrap: balance; }

h1 {
  font-size: clamp(2.45rem, 5.6vw, 4.15rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.028em;
}

h2 {
  font-size: clamp(1.65rem, 2.9vw, 2.3rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.016em;
}

h3 { font-size: 1.05rem; font-weight: 700; letter-spacing: -0.008em; }

p { margin: 0; max-width: 62ch; }

a { color: inherit; }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 2px; }

.sr, .skip {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip-path: inset(50%); white-space: nowrap;
}
.skip:focus {
  width: auto; height: auto; clip-path: none;
  top: 10px; left: 10px; z-index: 50;
  padding: 10px 14px; background: var(--ink); color: var(--slab);
  text-decoration: none; border-radius: 4px;
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }

/* ───────────────────────── buttons ───────────────────────── */

.btn {
  display: inline-block;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 0.96rem;
  font-weight: 600;
  letter-spacing: -0.006em;
  text-decoration: none;
  transition: background-color .14s ease, color .14s ease, border-color .14s ease;
}
.btn-lg { padding: 14px 26px; font-size: 1.02rem; }

.btn-solid { background: var(--ink); color: #f2f4ef; }
.btn-solid:hover { background: #17414e; }

.btn-line { border-color: var(--ink); color: var(--ink); }
.btn-line:hover { background: rgba(14, 42, 51, .07); }

.btn-quiet { color: var(--ink-2); }
.btn-quiet:hover { color: var(--ink); background: rgba(14, 42, 51, .06); }

/* ───────────────────────── header ───────────────────────── */

.top {
  position: sticky; top: 0; z-index: 20;
  background: rgba(230, 231, 226, .93);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.top-inner {
  display: flex; align-items: center; gap: 28px;
  min-height: 66px;
}

.mark {
  display: inline-flex; align-items: center; gap: 9px;
  text-decoration: none; font-weight: 700; letter-spacing: -0.02em;
}
.mark-badge {
  display: grid; place-items: center;
  width: 27px; height: 27px;
  background: var(--ink); color: #f2f4ef;
  border-radius: 3px;
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0;
}
.mark-word { font-size: 1.08rem; }

.top-nav { display: flex; gap: 22px; margin-left: auto; }
.top-nav a {
  font-size: 0.93rem; font-weight: 500; color: var(--ink-2);
  text-decoration: none; padding: 4px 0;
  border-bottom: 1px solid transparent;
}
.top-nav a:hover { color: var(--ink); border-bottom-color: var(--ink); }

.top-act { display: flex; align-items: center; gap: 8px; }

@media (max-width: 960px) {
  .top-nav { display: none; }
  .top-act { margin-left: auto; }
}

/* ───────────────────────── hero ───────────────────────── */

.hero { padding: 84px 0 0; }
.hero-copy h1 { max-width: 19ch; }

.lede {
  margin-top: 22px;
  font-size: clamp(1.05rem, 1.5vw, 1.24rem);
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 56ch;
}

.hero-act { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

@media (max-width: 700px) { .hero { padding-top: 52px; } }

/* ───────────────────── the week board ───────────────────── */

.board {
  margin: 56px 0 0;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-radius: 4px;
  box-shadow: 0 18px 40px -28px rgba(14, 42, 51, .45);
  overflow: hidden;
}

.board-cap {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--rule);
}
.board-title { font-weight: 700; letter-spacing: -0.012em; }
.board-note { font-size: 0.92rem; color: var(--ink-3); }

.board-scroll { overflow-x: auto; }

.strip {
  display: grid;
  grid-template-columns: 148px repeat(7, minmax(122px, 1fr));
  min-width: 1010px;
  padding: 0 0 18px;
  font-family: 'Barlow Semi Condensed', 'Archivo', sans-serif;
}

.cell-corner { grid-column: 1; grid-row: 1; }

.day {
  grid-row: 1;
  padding: 11px 12px;
  border-left: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-size: 0.96rem; font-weight: 600; color: var(--ink-2);
}
.day-off { color: var(--ink-3); }

/* vertical day separators, drawn behind the blocks */
.col-rule {
  border-left: 1px solid var(--rule);
  z-index: 0;
}

.closed {
  z-index: 1;
  display: grid; place-items: center;
  background: repeating-linear-gradient(
    -45deg, transparent 0 7px, rgba(107, 128, 135, .13) 7px 8px);
  border-left: 1px solid var(--rule);
}
.closed span {
  font-size: 0.9rem; font-weight: 600; color: var(--ink-3);
  writing-mode: vertical-rl; letter-spacing: 0.04em;
}

.lane-name {
  grid-column: 1;
  display: flex; flex-direction: column; justify-content: center; gap: 3px;
  padding: 16px 16px 16px 20px;
  border-top: 1px solid var(--rule);
  font-family: 'Archivo', sans-serif;
  font-size: 0.97rem; font-weight: 700; letter-spacing: -0.01em;
}
.lane-name small {
  font-weight: 400; font-size: 0.83rem; color: var(--ink-3);
  letter-spacing: 0; line-height: 1.35;
}

/* a scheduled visit */
.blk {
  z-index: 1;
  display: flex; flex-direction: column; gap: 2px;
  margin: 12px 8px;
  padding: 9px 10px 10px;
  border-radius: 3px;
  border-left: 3px solid var(--ink-3);
  background: #f4f6f2;
  min-height: 74px;
}
.blk-time  { font-size: 0.88rem; font-weight: 600; color: var(--ink-3); }
.blk-what  { font-size: 1rem; font-weight: 600; line-height: 1.16; letter-spacing: -0.006em; }
.blk-where { font-size: 0.89rem; color: var(--ink-2); line-height: 1.2; }

.blk-test  { border-left-color: var(--ink); }
.blk-quote { border-left-color: var(--ink-3); background: #f6f7f4; }

.blk-mit {
  background: var(--ink);
  border-left-color: rgba(233, 236, 231, .34);
  min-height: 92px;
}
.blk-mit .blk-time  { color: #8fb0b8; }
.blk-mit .blk-what,
.blk-mit .blk-where { color: #eef1ec; }

/* the 48-hour rule, drawn between placement and pickup */
.tie {
  z-index: 1;
  display: flex; align-items: center; gap: 10px;
  margin: 0 18px 4px;
}
.tie::before,
.tie::after {
  content: ""; flex: 1;
  border-top: 1px dashed var(--wait);
  transform: scaleX(0); transform-origin: left center;
  animation: draw .7s .35s cubic-bezier(.2,.7,.3,1) forwards;
}
.tie::after { transform-origin: right center; }
.tie-chip {
  flex: none;
  padding: 3px 11px;
  border: 1px solid var(--wait);
  border-radius: 999px;
  background: #fdf6e6;
  color: var(--wait);
  font-size: 0.85rem; font-weight: 600; white-space: nowrap;
  opacity: 0; animation: fade .5s .85s ease forwards;
}

@keyframes draw { to { transform: scaleX(1); } }
@keyframes fade { to { opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  .tie::before, .tie::after { transform: none; animation: none; }
  .tie-chip { opacity: 1; animation: none; }
}

/* ───────────────────────── bands ───────────────────────── */

.band { padding: 90px 0; }
.band-sheet { background: var(--sheet); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.band-h { max-width: 24ch; }
.band-sub { margin-top: 14px; color: var(--ink-2); font-size: 1.08rem; }

@media (max-width: 700px) { .band { padding: 58px 0; } }

.grid-2 {
  display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: start;
}
@media (max-width: 900px) { .grid-2 { grid-template-columns: 1fr; gap: 34px; } }

.col-say p { margin-top: 18px; color: var(--ink-2); }

/* the four rules, as a spec sheet */
.specs { margin: 0; }
.spec {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 24px;
  padding: 20px 0;
  border-top: 1px solid var(--rule);
}
.spec:last-child { border-bottom: 1px solid var(--rule); }
.spec dt {
  font-weight: 700; font-size: 1.06rem; letter-spacing: -0.01em;
  grid-column: 1;
}
.spec dd { margin: 0; grid-column: 1; color: var(--ink-2); font-size: 0.99rem; }
.spec-val {
  grid-column: 2; grid-row: 1 / 3;
  align-self: center;
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 1.5rem; font-weight: 600; letter-spacing: -0.01em;
  color: var(--ink); white-space: nowrap;
}

/* a reading, and what it means */
.verdicts {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1px; margin-top: 54px;
  background: var(--rule); border: 1px solid var(--rule);
}
.verdict {
  display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap;
  padding: 20px 22px; background: var(--sheet);
}
.v-read {
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 1.85rem; font-weight: 600; letter-spacing: -0.015em;
  white-space: nowrap;
}
.v-say { font-size: 0.97rem; color: var(--ink-2); flex: 1 1 14ch; }
.v-under .v-read { color: var(--under); }
.v-over  .v-read { color: var(--over); }

/* ───────────────────── features (ruled grid) ───────────────────── */

.feats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--rule);
  margin-top: 46px; border-top: 1px solid var(--rule);
}
.feat { background: var(--slab); padding: 26px 24px 30px; }
.feat p { margin-top: 9px; color: var(--ink-2); font-size: 0.97rem; }

@media (max-width: 1040px) { .feats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px)  { .feats { grid-template-columns: 1fr; } }

/* ───────────────────── the job, in order ───────────────────── */

.band-ink { background: var(--ink); color: #e9ece7; }
.band-ink .band-sub { color: #9db7bd; }
.band-ink :focus-visible { outline-color: #cfe0e4; }

.flow {
  list-style: none; counter-reset: s; margin: 48px 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: rgba(233, 236, 231, .17);
  border-top: 1px solid rgba(233, 236, 231, .17);
}
.step {
  counter-increment: s;
  background: var(--ink);
  padding: 24px 24px 28px;
}
.step::before {
  content: counter(s);
  display: block; margin-bottom: 12px;
  font-family: 'Barlow Semi Condensed', sans-serif;
  font-size: 1.05rem; font-weight: 600; color: #7fa3ac;
}
.step p { margin-top: 8px; color: #b9cace; font-size: 0.97rem; }

@media (max-width: 900px) { .flow { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .flow { grid-template-columns: 1fr; } }

/* ───────────────────────── comparison ───────────────────────── */

.table-scroll { overflow-x: auto; margin-top: 44px; }
.cmp {
  width: 100%; min-width: 720px;
  border-collapse: collapse;
  font-size: 0.99rem;
}
.cmp th, .cmp td {
  text-align: left; vertical-align: top;
  padding: 16px 18px;
  border-bottom: 1px solid var(--rule);
}
.cmp thead th {
  font-size: 0.93rem; font-weight: 700; color: var(--ink-3);
  border-bottom: 1px solid var(--ink);
  padding-bottom: 10px;
}
.cmp tbody th { font-weight: 700; width: 22%; }
.cmp td:nth-child(2) { color: var(--ink-3); width: 36%; }
.cmp td:nth-child(3) { font-weight: 500; background: rgba(14, 42, 51, .05); }
.cmp thead th:nth-child(3) { color: var(--ink); background: rgba(14, 42, 51, .05); }

/* ───────────────────────── panels ───────────────────────── */

.panels { gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.panels.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.panel { background: var(--slab); padding: 30px 28px 34px; }
.panel p { margin-top: 12px; color: var(--ink-2); font-size: 0.99rem; }

.link-more {
  display: inline-block; margin-top: 18px;
  font-weight: 600; font-size: 0.96rem;
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 1px;
}
.link-more:hover { color: var(--ink-2); border-bottom-color: var(--ink-2); }

/* ───────────────────────── questions ───────────────────────── */

.qa {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 34px 48px; margin-top: 44px;
}
.qa p { margin-top: 9px; color: var(--ink-2); font-size: 0.99rem; }
@media (max-width: 800px) { .qa { grid-template-columns: 1fr; gap: 28px; } }

/* ───────────────────────── start ───────────────────────── */

.band-start {
  background: var(--slab-2);
  border-top: 1px solid var(--rule);
  padding: 76px 0;
}
.start-inner {
  display: flex; flex-wrap: wrap; align-items: center;
  justify-content: space-between; gap: 34px;
}
.start-inner p { margin-top: 14px; color: var(--ink-2); max-width: 52ch; }
.start-act { display: flex; flex-direction: column; gap: 10px; }

/* ───────────────────────── footer ───────────────────────── */

.foot {
  background: var(--ink); color: #cad8dc;
  padding: 44px 0;
}
.foot-inner { display: grid; gap: 22px; }
.foot .mark { color: #eef1ec; }
.foot .mark-badge { background: #f2f4ef; color: var(--ink); }
.foot-nav { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.foot-nav a {
  font-size: 0.94rem; color: #a9c1c7; text-decoration: none;
  border-bottom: 1px solid transparent;
}
.foot-nav a:hover { color: #eef1ec; border-bottom-color: #eef1ec; }
.foot-fine { font-size: 0.9rem; color: #7d9ba2; }
.foot :focus-visible { outline-color: #cfe0e4; }