/* Keystoneyard — the supply yard for the decisions that hold your business up.
   Visual identity: trade counter, not fintech. Kraft/manila paper, safety amber,
   ink black, steel gray. Slab + condensed display type. Monospace for spec numbers.
   Established 2023. */

:root {
  --paper:        #f4efe4;   /* manila / kraft */
  --paper-2:      #ece5d5;
  --paper-line:   #ddd3bd;
  --ink:          #1b1a17;   /* near-black */
  --ink-2:        #3a3833;
  --steel:        #6b6a63;
  --steel-2:      #8f8d84;
  --amber:        #f2a900;   /* safety / caution yellow */
  --amber-dark:   #c98a00;
  --rust:         #a8391f;   /* stamped red — for "ruled out" */
  --forest:       #2f5d3f;   /* stamped green — for "fits" */
  --blueprint:    #17324d;   /* deep spec navy, used sparingly */
  --card:         #fbf8f0;
  --shadow:       rgba(27,26,23,.14);

  --sans: "Helvetica Neue", Arial, "Liberation Sans", sans-serif;
  --cond: "Oswald", "Arial Narrow", "Helvetica Neue Condensed", sans-serif;
  --slab: "Roboto Slab", "Rockwell", Georgia, serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --maxw: 1080px;
}

/* ---------- reset-ish ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(0,0,0,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.015) 1px, transparent 1px);
  background-size: 26px 26px;
  line-height: 1.55;
  font-size: 17px;
}
img { max-width: 100%; display: block; }
a { color: var(--ink); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 760px; }

h1,h2,h3,h4 { font-family: var(--cond); font-weight: 600; line-height: 1.05; letter-spacing: .01em; margin: 0 0 .5em; text-transform: uppercase; }
h1 { font-size: clamp(38px, 6vw, 68px); }
h2 { font-size: clamp(26px, 3.6vw, 38px); }
h3 { font-size: 21px; letter-spacing: .04em; }
p { margin: 0 0 1.1em; }

.serif { font-family: var(--slab); text-transform: none; }
.mono { font-family: var(--mono); }
.muted { color: var(--steel); }
.small { font-size: 14px; }
.tiny { font-size: 12.5px; }

/* ---------- top bar ---------- */
.topbar {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; padding-top: 7px; padding-bottom: 7px; gap: 12px; }
.topbar a { color: var(--amber); }

/* ---------- header ---------- */
.site-header {
  border-bottom: 3px solid var(--ink);
  background: var(--paper);
  position: sticky; top: 0; z-index: 40;
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; padding-top: 14px; padding-bottom: 14px; gap: 20px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand:hover { text-decoration: none; }
.brand .mark { width: 40px; height: 40px; flex: none; }
.brand .name { font-family: var(--cond); font-weight: 700; font-size: 26px; text-transform: uppercase; letter-spacing: .02em; line-height: 1; }
.brand .name span { color: var(--amber-dark); }
.brand .tag { font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--steel); }

nav.main { display: flex; gap: 26px; align-items: center; font-family: var(--cond); text-transform: uppercase; font-size: 16px; letter-spacing: .04em; }
nav.main a { padding: 4px 0; border-bottom: 2px solid transparent; }
nav.main a:hover { border-bottom-color: var(--amber); text-decoration: none; }
nav.main a.cta { background: var(--amber); border: 2px solid var(--ink); padding: 8px 16px; box-shadow: 3px 3px 0 var(--ink); }
nav.main a.cta:hover { background: var(--ink); color: var(--amber); border-bottom-color: var(--ink); }

.nav-toggle { display: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--cond); text-transform: uppercase; letter-spacing: .05em;
  font-size: 18px; font-weight: 600;
  background: var(--amber); color: var(--ink);
  border: 2px solid var(--ink);
  padding: 13px 26px;
  box-shadow: 5px 5px 0 var(--ink);
  cursor: pointer;
  transition: transform .05s ease, box-shadow .05s ease;
}
.btn:hover { text-decoration: none; transform: translate(2px,2px); box-shadow: 3px 3px 0 var(--ink); }
.btn:active { transform: translate(5px,5px); box-shadow: 0 0 0 var(--ink); }
.btn.ghost { background: transparent; }
.btn.ink { background: var(--ink); color: var(--amber); }
.btn.big { font-size: 22px; padding: 16px 34px; }
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* ---------- hero ---------- */
.hero { border-bottom: 3px solid var(--ink); padding: 66px 0 54px; position: relative; overflow: hidden; }
.hero .stamp-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 22px; }
.kicker { font-family: var(--mono); font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--rust); font-weight: 600; }
.hero h1 { max-width: 15ch; }
.hero .lede { font-family: var(--slab); font-size: clamp(18px,2.2vw,22px); max-width: 40ch; color: var(--ink-2); }
.hero-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; margin-top: 30px; }
.no-email { font-family: var(--mono); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--forest); display: flex; align-items: center; gap: 8px; }
.no-email::before { content: "✓"; font-weight: 700; }

/* stamp / chip */
.stamp {
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase;
  border: 2px solid var(--ink); padding: 5px 10px; background: var(--paper-2);
  display: inline-block; transform: rotate(-1.5deg);
}
.stamp.amber { background: var(--amber); }
.stamp.rust { color: var(--paper); background: var(--rust); border-color: var(--rust); }
.stamp.forest { color: var(--paper); background: var(--forest); border-color: var(--forest); }

/* ---------- section frame ---------- */
section { padding: 56px 0; border-bottom: 1px solid var(--paper-line); }
section.dark { background: var(--ink); color: var(--paper); border-bottom: 3px solid var(--amber); }
section.dark h2, section.dark h3 { color: var(--paper); }
section.dark a { color: var(--amber); }
.eyebrow { font-family: var(--mono); font-size: 12.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--amber-dark); margin-bottom: 14px; }
section.dark .eyebrow { color: var(--amber); }

/* ---------- combinatorics counter ---------- */
.combo { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border: 2px solid var(--paper); margin: 26px 0; }
.combo div { padding: 20px 16px; border-right: 1px solid rgba(244,239,228,.25); }
.combo div:last-child { border-right: none; }
.combo .n { font-family: var(--cond); font-size: 46px; line-height: 1; color: var(--amber); }
.combo .l { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--steel-2); margin-top: 8px; }
.combo-total { font-family: var(--slab); font-size: 22px; margin-top: 6px; }
.combo-total b { color: var(--amber); }

/* ---------- how it works ---------- */
.steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 18px; }
.step { background: var(--card); border: 2px solid var(--ink); padding: 20px; box-shadow: 4px 4px 0 var(--shadow); }
.step .num { font-family: var(--cond); font-size: 40px; color: var(--amber-dark); line-height: 1; }
.step h3 { margin-top: 8px; font-size: 18px; }
.step p { margin: 0; font-size: 15px; color: var(--ink-2); }

/* ---------- roster ---------- */
.roster { display: grid; grid-template-columns: repeat(auto-fit, minmax(155px, 1fr)); gap: 14px; }
.chip-provider { border: 2px solid var(--ink); background: var(--card); padding: 16px; text-align: center; }
.chip-provider .pname { font-family: var(--cond); text-transform: uppercase; font-size: 20px; }
.chip-provider .pmeta { font-family: var(--mono); font-size: 11.5px; color: var(--steel); text-transform: uppercase; letter-spacing: .05em; }

/* ---------- generic cards / grid ---------- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; }
.card {
  background: var(--card); border: 2px solid var(--ink);
  box-shadow: 5px 5px 0 var(--shadow);
}
.card .body { padding: 20px 22px; }
.card .cat { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--rust); }
.card h3 { margin: 8px 0 8px; font-size: 20px; text-transform: none; font-family: var(--slab); font-weight: 600; line-height: 1.15; }
.card .excerpt { font-size: 15px; color: var(--ink-2); margin-bottom: 10px; }
.card .byline { font-family: var(--mono); font-size: 11.5px; color: var(--steel); text-transform: uppercase; letter-spacing: .04em; }
.card .band { height: 8px; background: var(--amber); border-bottom: 2px solid var(--ink); }
.card.rust .band { background: var(--rust); }
.card.forest .band { background: var(--forest); }
.card.blue .band { background: var(--blueprint); }

/* ---------- callout / disclosure ---------- */
.callout { border: 2px dashed var(--ink); background: var(--paper-2); padding: 18px 20px; margin: 24px 0; }
.callout.pay { border-style: solid; border-color: var(--forest); background: #eef3ee; }
.callout .lbl { font-family: var(--mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .1em; color: var(--rust); font-weight: 600; margin-bottom: 6px; }

/* ---------- quiz ---------- */
.quiz-shell { max-width: 760px; margin: 0 auto; padding: 46px 0 70px; }
.progress { display: flex; gap: 6px; margin-bottom: 30px; }
.progress .seg { flex: 1; height: 8px; background: var(--paper-line); border: 1px solid var(--ink); }
.progress .seg.on { background: var(--amber); }
.q-step { display: none; }
.q-step.active { display: block; animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px);} to {opacity:1; transform:none;} }
.q-count { font-family: var(--mono); font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--steel); }
.q-title { font-family: var(--cond); text-transform: uppercase; font-size: clamp(26px,4vw,40px); margin: 6px 0 6px; }
.q-help { font-family: var(--slab); color: var(--ink-2); margin-bottom: 24px; }
.options { display: grid; gap: 12px; }
.opt {
  display: flex; align-items: center; gap: 14px;
  border: 2px solid var(--ink); background: var(--card);
  padding: 16px 18px; cursor: pointer; box-shadow: 4px 4px 0 var(--shadow);
  transition: transform .05s ease, box-shadow .05s ease, background .1s;
  font-size: 17px;
}
.opt:hover { transform: translate(1px,1px); box-shadow: 3px 3px 0 var(--shadow); }
.opt.selected { background: var(--amber); }
.opt .box { width: 22px; height: 22px; border: 2px solid var(--ink); flex: none; background: var(--paper); }
.opt.selected .box { background: var(--ink); }
.opt .lab { font-family: var(--cond); text-transform: uppercase; font-size: 19px; }
.opt .sub { font-family: var(--sans); text-transform: none; font-size: 13.5px; color: var(--steel); display: block; }
select.field {
  width: 100%; font-family: var(--cond); text-transform: uppercase; font-size: 20px;
  padding: 14px 16px; border: 2px solid var(--ink); background: var(--card);
  box-shadow: 4px 4px 0 var(--shadow); appearance: none;
}
.q-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 30px; }
.link-back { font-family: var(--mono); font-size: 13px; text-transform: uppercase; letter-spacing: .06em; color: var(--steel); background: none; border: none; cursor: pointer; }
.link-back:hover { color: var(--ink); }

/* ---------- results ---------- */
.result-head { border-bottom: 3px solid var(--ink); padding-bottom: 22px; margin-bottom: 30px; }
.inputs-strip { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 0; }
.inputs-strip .ipt { font-family: var(--mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: .04em; border: 2px solid var(--ink); padding: 6px 12px; background: var(--paper-2); }
.inputs-strip .ipt b { color: var(--rust); }

.rec { border: 3px solid var(--ink); background: var(--card); box-shadow: 8px 8px 0 var(--shadow); margin-bottom: 26px; }
.rec .rec-band { display: flex; justify-content: space-between; align-items: center; background: var(--forest); color: var(--paper); padding: 10px 20px; font-family: var(--mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: .1em; }
.rec.alt .rec-band { background: var(--steel); }
.rec .rec-body { padding: 26px 24px; }
.rec .pname { font-family: var(--cond); text-transform: uppercase; font-size: 40px; line-height: 1; }
.rec .why { font-family: var(--slab); font-size: 19px; margin: 12px 0 18px; }
.rec ul.specs { list-style: none; padding: 0; margin: 0 0 18px; display: grid; gap: 8px; }
.rec ul.specs li { font-size: 15px; padding-left: 26px; position: relative; }
.rec ul.specs li::before { content: "▸"; color: var(--forest); position: absolute; left: 4px; font-weight: 700; }
.disclosure-block { border: 2px solid var(--forest); background: #eef3ee; padding: 14px 18px; margin-bottom: 20px; font-family: var(--slab); }
.disclosure-block .amt { font-family: var(--mono); font-weight: 600; color: var(--forest); }

.ruled-out { border: 2px dashed var(--rust); background: #f7ece9; padding: 20px 22px; margin: 26px 0; }
.ruled-out h3 { color: var(--rust); }
.ruled-out .ro { display: flex; gap: 14px; align-items: baseline; padding: 10px 0; border-bottom: 1px dashed var(--rust); }
.ruled-out .ro:last-child { border-bottom: none; }
.ruled-out .ro .x { font-family: var(--cond); color: var(--rust); font-size: 20px; text-transform: uppercase; flex: none; width: 130px; }
.ruled-out .ro .rr { font-size: 15px; }

/* ---------- processing interstitial ---------- */
#processing {
  position: fixed; inset: 0; z-index: 100;
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
  background-size: 26px 26px;
  display: flex; align-items: center; justify-content: center; padding: 26px;
}
#processing.done { display: none; }
.proc-inner { width: 100%; max-width: 620px; }
.proc-mark { width: 62px; height: 62px; margin: 0 auto 22px; display: block; transform-origin: 50% 55%; animation: kyspin 1.5s cubic-bezier(.6,.1,.3,.9) infinite; }
@keyframes kyspin { to { transform: rotate(360deg); } }
.proc-head { font-family: var(--cond); text-transform: uppercase; font-size: clamp(28px,5vw,44px); text-align: center; line-height: 1; }
.proc-sub { font-family: var(--mono); text-align: center; color: var(--steel); text-transform: uppercase; letter-spacing: .07em; font-size: 12px; margin: 10px 0 22px; }
.proc-ticker {
  font-family: var(--mono); background: var(--ink); color: var(--amber);
  padding: 11px 15px; border: 2px solid var(--ink); font-size: 13px;
  text-transform: uppercase; letter-spacing: .05em; margin: 20px 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.proc-ticker b { color: var(--paper); }
.proc-steps { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 9px; }
.proc-steps li { font-family: var(--mono); font-size: 13px; text-transform: uppercase; letter-spacing: .03em; color: var(--steel-2); display: flex; gap: 12px; align-items: center; opacity: .3; transition: opacity .25s ease, color .25s ease; }
.proc-steps li .tick { width: 19px; height: 19px; border: 2px solid var(--steel); flex: none; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; background: var(--paper); }
.proc-steps li.active { opacity: 1; color: var(--ink); }
.proc-steps li.active .tick { border-color: var(--amber-dark); animation: tickpulse .6s ease infinite; }
.proc-steps li.on { opacity: 1; color: var(--ink); }
.proc-steps li.on .tick { background: var(--forest); border-color: var(--forest); color: var(--paper); animation: none; }
.proc-steps li.on .tick::after { content: "✓"; }
@keyframes tickpulse { 0%,100% { background: var(--paper); } 50% { background: var(--amber); } }
.proc-count-row { display: flex; justify-content: space-between; align-items: baseline; font-family: var(--mono); text-transform: uppercase; font-size: 12px; letter-spacing: .06em; color: var(--steel); margin-bottom: 8px; }
.proc-count-row b { font-family: var(--cond); font-size: 30px; color: var(--amber-dark); letter-spacing: .02em; }
.proc-bar { height: 12px; border: 2px solid var(--ink); background: var(--paper-2); overflow: hidden; }
.proc-fill { height: 100%; width: 0; background: var(--amber); }
@media (prefers-reduced-motion: reduce) {
  .proc-mark { animation: none; }
  .proc-steps li.active .tick { animation: none; }
}

/* ---------- article ---------- */
.article-head { border-bottom: 3px solid var(--ink); padding: 40px 0 26px; }
.article-head h1 { text-transform: none; font-family: var(--slab); font-weight: 700; font-size: clamp(30px,4.6vw,46px); line-height: 1.08; max-width: 22ch; }
.article-meta { font-family: var(--mono); font-size: 12.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--steel); display: flex; gap: 16px; flex-wrap: wrap; margin-top: 14px; }
.article-body { font-family: var(--slab); font-size: 18px; line-height: 1.7; }
.article-body h2 { font-family: var(--cond); margin-top: 1.6em; font-size: 27px; }
.article-body h3 { font-family: var(--cond); margin-top: 1.4em; letter-spacing: .02em; }
.article-body ul, .article-body ol { padding-left: 1.3em; }
.article-body li { margin-bottom: .5em; }
.article-body table { width: 100%; border-collapse: collapse; font-family: var(--sans); font-size: 15px; margin: 1.4em 0; }
.article-body th, .article-body td { border: 1px solid var(--ink); padding: 10px 12px; text-align: left; }
.article-body th { background: var(--ink); color: var(--paper); font-family: var(--cond); text-transform: uppercase; letter-spacing: .04em; font-weight: 500; }
.article-body tr:nth-child(even) td { background: var(--paper-2); }
.article-body blockquote { border-left: 5px solid var(--amber); margin: 1.4em 0; padding: 6px 0 6px 20px; color: var(--ink-2); font-style: italic; }
.updated-note { font-family: var(--mono); font-size: 12.5px; background: var(--paper-2); border: 1px solid var(--ink); padding: 10px 14px; margin: 20px 0; color: var(--ink-2); }

/* ---------- inline callout inside article: try the specifier ---------- */
.inline-cta { border: 3px solid var(--ink); background: var(--amber); padding: 22px 24px; margin: 30px 0; box-shadow: 6px 6px 0 var(--shadow); }
.inline-cta h3 { text-transform: uppercase; font-size: 22px; }
.inline-cta p { font-family: var(--sans); margin-bottom: 14px; }

/* ---------- footer ---------- */
.site-footer { background: var(--ink); color: var(--paper-2); border-top: 4px solid var(--amber); padding: 46px 0 30px; margin-top: 10px; }
.site-footer a { color: var(--paper-2); }
.site-footer a:hover { color: var(--amber); }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 28px; }
.foot-grid h4 { font-family: var(--cond); color: var(--amber); font-size: 15px; letter-spacing: .08em; }
.foot-grid ul { list-style: none; padding: 0; margin: 0; }
.foot-grid li { margin-bottom: 7px; font-size: 14.5px; }
.foot-brand .name { font-family: var(--cond); font-size: 26px; text-transform: uppercase; color: var(--paper); }
.foot-brand p { font-size: 14px; color: var(--steel-2); max-width: 34ch; }
.foot-bottom { border-top: 1px solid #33322d; margin-top: 34px; padding-top: 18px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .05em; color: var(--steel-2); }
.disc-footer { font-family: var(--sans); text-transform: none; letter-spacing: 0; font-size: 12.5px; color: var(--steel-2); max-width: 70ch; margin-top: 8px; }

/* ---------- misc ---------- */
.divider-label { display: flex; align-items: center; gap: 16px; margin: 6px 0 26px; }
.divider-label::before, .divider-label::after { content: ""; height: 2px; background: var(--ink); flex: 1; }
.divider-label span { font-family: var(--mono); text-transform: uppercase; letter-spacing: .12em; font-size: 12.5px; }

.section-title-row { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.section-title-row a { font-family: var(--mono); font-size: 13px; text-transform: uppercase; letter-spacing: .05em; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .grid-3, .steps, .roster, .combo { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  nav.main { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--paper); border-bottom: 3px solid var(--ink); flex-direction: column; align-items: stretch; padding: 10px 22px 18px; gap: 4px; }
  nav.main.open { display: flex; }
  nav.main a { padding: 12px 0; border-bottom: 1px solid var(--paper-line); }
  nav.main a.cta { text-align: center; margin-top: 8px; }
  .nav-toggle { display: inline-flex; font-family: var(--cond); text-transform: uppercase; font-size: 16px; background: var(--ink); color: var(--amber); border: none; padding: 8px 14px; cursor: pointer; }
  .site-header .wrap { position: relative; }
}
@media (max-width: 560px) {
  .combo { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .inputs-strip .ipt { font-size: 11.5px; }
  body { font-size: 16px; }
}