/* ReqPath public site: the shared system for every marketing page.
   Tokens come from /rp-ui.css (Design System v1.0); rules follow DESIGN.md.
   Page-specific styles live in home.css (landing) or in each page. */
:root {
  --gutter: clamp(16px, 4.5vw, 72px);
  --content: 1280px;
  --nav-h: 68px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 24px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--canvas); color: var(--ink-900);
  font-family: var(--font-body); font-size: 17px; line-height: 1.6;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  caret-color: var(--green-700);
}
::selection { background: var(--green-100); color: var(--green-900); }
h1, h2, h3, h4, p, ul, ol, figure, dl, dd, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; }
a { color: var(--green-800); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--green-900); }
:focus-visible { outline: 2px solid var(--green-700); outline-offset: 2px; border-radius: 3px; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 5px; border: 2px solid var(--canvas); }
::-webkit-scrollbar-track { background: transparent; }
.num { font-variant-numeric: tabular-nums; }
.code { font-family: var(--font-mono); font-size: 0.92em; letter-spacing: 0; }
.wrap { width: 100%; max-width: calc(var(--content) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 16px; top: -48px; z-index: 100; background: var(--ink-900); color: #fff; padding: 10px 14px; border-radius: var(--radius-md); font-weight: 600; text-decoration: none; }
.skip-link:focus { top: 12px; color: #fff; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 600 15px/1 var(--font-body); text-decoration: none; white-space: nowrap;
  padding: 13px 20px; border-radius: var(--radius-md); border: 1px solid transparent; cursor: pointer;
  transition: background-color .15s, border-color .15s, color .15s;
}
.btn--primary { background: var(--green-700); color: #fff; }
.btn--primary:hover { background: var(--green-800); color: #fff; }
.btn--ink { background: var(--ink-900); color: #fff; }
.btn--ink:hover { background: var(--ink-700); color: #fff; }
.btn--neutral { background: var(--surface); color: var(--ink-900); border-color: var(--border-strong); }
.btn--neutral:hover { background: var(--canvas); border-color: var(--ink-400); color: var(--ink-900); }
.btn--ghost { background: transparent; color: var(--ink-700); }
.btn--ghost:hover { background: var(--sunken); color: var(--ink-900); }
.btn--light { background: #fff; color: var(--green-900); }
.btn--light:hover { background: var(--green-50); color: var(--green-900); }
.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.7); }
.btn--outline-light:hover { background: rgba(255, 255, 255, 0.12); color: #fff; border-color: #fff; }
.btn--sm { font-size: 14px; padding: 9px 14px; }
.btn--block { width: 100%; }
.btn:disabled { cursor: default; opacity: .55; }
.btn svg { flex: none; }
.btn-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50; background: rgba(246, 247, 243, 0.97);
  border-bottom: 1px solid transparent; transition: border-color .2s;
}
.nav.is-stuck, .nav.is-open { border-bottom-color: var(--border); }
.nav .wrap { display: flex; align-items: center; gap: 32px; height: var(--nav-h); }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink-900); text-decoration: none; flex: none; }
.brand:hover { color: var(--ink-900); }
.brand-name { font: 700 20px/1 var(--font-display); letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 4px; margin-left: 8px; }
.nav-links a { color: var(--ink-700); text-decoration: none; font-size: 15px; font-weight: 500; padding: 8px 12px; border-radius: var(--radius-md); }
.nav-links a:hover { background: var(--sunken); color: var(--ink-900); }
.nav-links a[aria-current="page"] { color: var(--green-800); font-weight: 600; }
.nav-actions { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; border-radius: var(--radius-md); background: transparent; color: var(--ink-900); cursor: pointer; place-items: center; }
.nav-toggle:hover { background: var(--sunken); }
.nav-toggle .i-close { display: none; }
.nav.is-open .nav-toggle .i-open { display: none; }
.nav.is-open .nav-toggle .i-close { display: block; }
.nav-menu { border-top: 1px solid var(--border); background: var(--canvas); }
.nav-menu[hidden] { display: none; }
.nav-menu .wrap { display: grid; gap: 4px; padding-block: 12px 20px; height: auto; }
.nav-menu a:not(.btn) { display: flex; align-items: center; min-height: 48px; padding: 0 12px; border-radius: var(--radius-md); color: var(--ink-900); text-decoration: none; font-size: 17px; font-weight: 500; }
.nav-menu a:not(.btn):hover, .nav-menu a[aria-current="page"] { background: var(--sunken); }
.nav-menu a[aria-current="page"] { color: var(--green-800); font-weight: 600; }
.nav-menu .btn-row { margin-top: 12px; }
.nav-menu .btn-row .btn { flex: 1 1 160px; min-height: 48px; }

/* ---------- inner-page header ---------- */
.page-hero { padding: 72px 0 56px; }
.page-hero h1 {
  font-family: var(--font-display); font-weight: 700; font-size: clamp(40px, 5.2vw, 72px); line-height: 1.0;
  letter-spacing: -0.032em; text-wrap: balance; max-width: 15em;
}
.page-hero .lead { margin-top: 24px; font-size: 19px; line-height: 1.6; color: var(--ink-700); max-width: 60ch; }
.page-hero .lead b, .page-hero .lead strong { color: var(--ink-900); font-weight: 600; }
.page-hero .meta { margin-top: 18px; font-size: 14px; color: var(--ink-700); }
.page-hero .btn-row { margin-top: 32px; }

/* ---------- section rhythm ---------- */
.section { padding-block: 112px; }
.section--white { background: var(--surface); border-block: 1px solid var(--border); }
.section + .section--white, .section--white + .section { border-top-color: var(--border); }
.section-head h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(32px, 3.6vw, 52px); line-height: 1.02; letter-spacing: -0.028em; text-wrap: balance; max-width: 14em; }
.section-head p { margin-top: 18px; color: var(--ink-700); max-width: 68ch; }
.section-head p b { color: var(--ink-900); font-weight: 600; }
h2.h-sub { font-family: var(--font-display); font-weight: 700; font-size: clamp(26px, 2.6vw, 36px); line-height: 1.08; letter-spacing: -0.022em; text-wrap: balance; }

/* checklist bullets */
.facts { margin-top: 22px; display: grid; gap: 12px; }
.facts li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; font-size: 15.5px; line-height: 1.55; color: var(--ink-700); }
.facts li b { color: var(--ink-900); font-weight: 600; }
.facts svg { margin-top: 3px; color: var(--green-700); }

/* ruled rows: a heading beside its text (principles, billing models, sub-features) */
.rows { border-top: 1px solid var(--ink-900); }
.rows > div { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 8px 48px; align-items: baseline; padding: 24px 0 26px; border-bottom: 1px solid var(--border-strong); }
.rows h3 { font-family: var(--font-display); font-weight: 700; font-size: 22px; line-height: 1.2; letter-spacing: -0.015em; }
.rows p { color: var(--ink-700); font-size: 16px; max-width: 36em; }
.rows p b { color: var(--ink-900); font-weight: 600; }
.rows--3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 32px; border-top: 0; }
.rows--3 > div { display: block; border-top: 1px solid var(--ink-900); border-bottom: 0; padding: 18px 0 0; }
.rows--3 h3 { font-size: 18px; }
.rows--3 p { margin-top: 8px; font-size: 15px; }

/* ---------- index beside a long page (features, legal) ---------- */
.doc { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 64px; align-items: start; }
.doc-index { position: sticky; top: calc(var(--nav-h) + 24px); max-height: calc(100vh - var(--nav-h) - 48px); overflow-y: auto; }
.doc-index h2 { font-size: 13px; font-weight: 600; color: var(--ink-700); margin-bottom: 10px; }
.doc-index ol { border-left: 1px solid var(--border-strong); }
.doc-index a { display: grid; grid-template-columns: 28px 1fr; gap: 4px; padding: 7px 10px 7px 14px; margin-left: -1px; border-left: 2px solid transparent; font-size: 14px; line-height: 1.35; color: var(--ink-700); text-decoration: none; }
.doc-index a .num { color: var(--ink-700); font-size: 13px; }
.doc-index a:hover { color: var(--ink-900); }
.doc-index a[aria-current="true"] { color: var(--green-800); font-weight: 600; border-left-color: var(--green-600); }
.doc-index a[aria-current="true"] .num { color: var(--green-800); }
.doc-index--plain a { grid-template-columns: minmax(0, 1fr); }

/* ---------- product panels (recreated screens, labeled demo data) ---------- */
.panel { background: var(--surface); color: var(--ink-900); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.panel-bar { display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--border-subtle); flex-wrap: wrap; }
.panel-title { font-size: 15px; font-weight: 600; }
.panel-bar .num { font-size: 12.5px; color: var(--ink-500); }
.panel-bar .spacer { flex: 1; }
.mock-input { font-size: 13.5px; color: var(--ink-500); border: 1px solid var(--border-strong); border-radius: var(--radius-md); padding: 7px 10px; min-width: 170px; display: inline-flex; align-items: center; gap: 7px; }
.mock-btn { font-size: 13px; font-weight: 600; border-radius: var(--radius-md); padding: 7px 11px; border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink-900); white-space: nowrap; }
.mock-btn--primary { background: var(--green-700); border-color: var(--green-700); color: #fff; }
.panel-foot { padding: 11px 18px; border-top: 1px solid var(--border-subtle); font-size: 13px; color: var(--ink-500); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.panel-body { padding: 18px; }

.tag { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; line-height: 1.2; padding: 3px 8px; border-radius: 5px; white-space: nowrap; }
.tag i { width: 6px; height: 6px; border-radius: 50%; flex: none; }
.t-math { background: var(--dept-math-bg); color: var(--dept-math-text); } .t-math i { background: var(--dept-math); }
.t-sci { background: var(--dept-science-bg); color: var(--dept-science-text); } .t-sci i { background: var(--dept-science); }
.t-eng { background: var(--dept-english-bg); color: var(--dept-english-text); } .t-eng i { background: var(--dept-english); }
.t-soc { background: var(--dept-social-bg); color: var(--dept-social-text); } .t-soc i { background: var(--dept-social); }
.t-lang { background: var(--dept-lang-bg); color: var(--dept-lang-text); } .t-lang i { background: var(--dept-lang); }
.t-arts { background: var(--dept-arts-bg); color: var(--dept-arts-text); } .t-arts i { background: var(--dept-arts); }
.t-pe { background: var(--dept-pe-bg); color: var(--dept-pe-text); } .t-pe i { background: var(--dept-pe); }
.t-cte { background: var(--dept-cte-bg); color: var(--dept-cte-text); } .t-cte i { background: var(--dept-cte); }
.d-math { background: var(--dept-math); } .d-sci { background: var(--dept-science); } .d-eng { background: var(--dept-english); }
.d-soc { background: var(--dept-social); } .d-lang { background: var(--dept-lang); } .d-arts { background: var(--dept-arts); }
.d-pe { background: var(--dept-pe); } .d-cte { background: var(--dept-cte); }
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; font-weight: 600; border-radius: 5px; padding: 4px 9px; white-space: nowrap; color: var(--ink-700); background: var(--sunken); transition: background-color .2s, color .2s; }
.badge i { width: 7px; height: 7px; border-radius: 50%; background: var(--ink-400); }
.badge--submitted, .badge--warn { background: var(--warning-bg); color: var(--warning-text); } .badge--submitted i, .badge--warn i { background: var(--warning); }
.badge--approved, .badge--ok { background: var(--success-bg); color: var(--success-text); } .badge--approved i, .badge--ok i { background: var(--green-600); }
.badge--info { background: var(--info-bg); color: var(--info-text); } .badge--info i { background: var(--info); }
.chip { font-size: 12.5px; color: var(--ink-700); background: var(--sunken); border-radius: 5px; padding: 3px 7px; white-space: nowrap; }

.table-scroll { overflow-x: auto; }
.panel table, table.data { width: 100%; border-collapse: collapse; font-size: 14px; }
.panel th, table.data th { text-align: left; font-size: 12.5px; font-weight: 600; color: var(--ink-500); padding: 10px 18px; background: var(--row-alt); border-bottom: 1px solid var(--border-subtle); white-space: nowrap; }
.panel td, table.data td { padding: 12px 18px; border-bottom: 1px solid var(--border-subtle); color: var(--ink-700); white-space: nowrap; }
.panel tbody tr:last-child td, table.data tbody tr:last-child td { border-bottom: 0; }
.panel td strong, table.data td strong { color: var(--ink-900); font-weight: 600; }
.panel td.dim { color: var(--ink-500); }
.panel td.n, .panel th.n { text-align: right; }
tr.in-plan td:first-child strong::after { content: ""; display: inline-block; width: 7px; height: 7px; margin-left: 8px; border-radius: 50%; background: var(--green-600); vertical-align: middle; }
.bar { display: inline-block; vertical-align: middle; height: 6px; border-radius: 3px; background: var(--green-600); margin-left: 8px; }
.bar--warn { background: var(--warning); }
.track { height: 8px; background: var(--sunken); border-radius: 4px; overflow: hidden; }
.track > span { display: block; height: 100%; background: var(--green-600); border-radius: 4px; }
.track--warn > span { background: var(--warning); }

/* prerequisite tree: grade rows x department lanes */
.tree { position: relative; padding: 18px 18px 20px; }
.tree-grid { position: relative; display: grid; grid-template-columns: 64px repeat(3, minmax(0, 1fr)); gap: 0 14px; }
.lane-head { font-size: 12.5px; font-weight: 600; color: var(--ink-500); padding: 0 0 10px; }
.grade { font-size: 12.5px; font-weight: 600; color: var(--ink-500); padding-top: 14px; border-top: 1px dashed var(--border); }
.cell { display: flex; gap: 8px; padding: 10px 0 18px; border-top: 1px dashed var(--border); }
.tnode { position: relative; z-index: 2; flex: 1 1 0; min-width: 0; background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius-md); overflow: hidden; }
.tnode b em { font-style: normal; font-weight: 500; }
.tnode b { display: flex; justify-content: space-between; gap: 6px; font-size: 11px; font-weight: 600; padding: 4px 8px; }
.tnode span { display: block; font-size: 13px; font-weight: 600; line-height: 1.25; padding: 6px 8px 8px; color: var(--ink-900); }
.tnode.math b { background: var(--dept-math-bg); color: var(--dept-math-text); }
.tnode.sci b { background: var(--dept-science-bg); color: var(--dept-science-text); }
.tnode.cte b { background: var(--dept-cte-bg); color: var(--dept-cte-text); }
.tnode.is-plan { border: 2px solid var(--green-600); }
.tnode.is-off span { color: var(--ink-500); font-weight: 500; }
.tree-edges { position: absolute; inset: 0; z-index: 1; pointer-events: none; overflow: visible; }
.tree-edges path { fill: none; stroke: var(--ink-300); stroke-width: 1.5; }
.tree-edges path.on { stroke: var(--green-600); stroke-width: 2; }
.tree-edges path.soft { stroke-dasharray: 4 4; }
.tree-key { display: flex; gap: 18px; flex-wrap: wrap; }
.tree-key span { display: inline-flex; align-items: center; gap: 8px; }
.tree-key i { width: 14px; height: 10px; border-radius: 4px; border: 2px solid var(--green-600); }
.tree-key i.off { border: 1px solid var(--border-strong); }

/* advisor + plan */
.plan { display: grid; grid-template-columns: minmax(260px, 4fr) minmax(0, 9fr); }
.advisor { padding: 20px; border-right: 1px solid var(--border-subtle); display: flex; flex-direction: column; gap: 12px; background: var(--row-alt); }
.advisor h3 { font-size: 13px; font-weight: 600; color: var(--ink-500); display: flex; align-items: center; gap: 8px; }
.bubble { font-size: 15px; line-height: 1.55; padding: 12px 14px; border-radius: 12px; max-width: 94%; }
.bubble--student { align-self: flex-end; background: var(--green-700); color: #fff; border-bottom-right-radius: 4px; }
.bubble--advisor { background: var(--surface); border: 1px solid var(--border); color: var(--ink-900); border-bottom-left-radius: 4px; }
.bubble--advisor p + p { margin-top: 8px; }
.check-line { display: flex; align-items: center; gap: 8px; font-size: 13.5px; font-weight: 600; color: var(--success-text); background: var(--success-bg); border-radius: var(--radius-md); padding: 8px 10px; margin-top: auto; }
.years { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.year { padding: 16px 14px; border-right: 1px solid var(--border-subtle); min-width: 0; }
.year:last-child { border-right: 0; }
.year h3 { margin: 0 0 10px; display: flex; justify-content: space-between; align-items: baseline; font-size: 14px; font-weight: 600; }
.year h3 .num { font-size: 12px; font-weight: 400; color: var(--ink-500); }
.year li { display: grid; grid-template-columns: 8px minmax(0, 1fr) auto; align-items: center; gap: 8px; padding: 7px 0; border-top: 1px solid var(--border-subtle); font-size: 13.5px; color: var(--ink-900); }
.year li i { width: 8px; height: 8px; border-radius: 50%; }
.year li .num { font-size: 12px; color: var(--ink-500); }
.year li.sug { background: var(--green-50); margin-left: -10px; margin-right: -10px; padding-left: 10px; padding-right: 10px; border-radius: 6px; border-top-color: transparent; }
.year li.sug .num { color: var(--ink-700); }
.year li.sug + li { border-top-color: transparent; }
.year li em { font-style: normal; font-size: 11.5px; font-weight: 600; color: var(--green-800); }
.plan-foot { grid-column: 1 / -1; display: flex; align-items: center; gap: 18px; padding: 14px 18px; border-top: 1px solid var(--border-subtle); flex-wrap: wrap; }
.credit-meter { flex: 1; min-width: 220px; display: grid; gap: 6px; font-size: 13.5px; color: var(--ink-700); }
.credit-meter b { color: var(--ink-900); }

/* review + requirements */
.review-head { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--border-subtle); flex-wrap: wrap; }
.review-head .who { flex: 1; min-width: 160px; }
.review-head strong { display: block; font-size: 15px; }
.review-head .meta { font-size: 13.5px; color: var(--ink-500); }
.avatar { flex: none; width: 40px; height: 40px; border-radius: 50%; background: var(--green-700); color: #fff; display: grid; place-items: center; font: 600 14px/1 var(--font-body); }
.avatar--sm { width: 30px; height: 30px; font-size: 12px; background: var(--sunken); color: var(--ink-700); }
.reqs { padding: 6px 18px 4px; display: grid; grid-template-columns: 1fr 1fr; gap: 0 28px; }
.req { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 10px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border-subtle); font-size: 14px; }
.req .num { font-size: 13px; color: var(--ink-700); }
.req .track { grid-column: 1 / -1; height: 6px; }
.req-name { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-900); font-weight: 500; }
.req-name svg { color: var(--green-700); }
.req.bad .req-name svg { color: var(--warning-text); }

/* schedule board */
.sched { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 8fr); }
.demand { border-right: 1px solid var(--border-subtle); }
.demand td, .demand th { padding-inline: 14px; }
.board-wrap { min-width: 0; display: flex; flex-direction: column; }
.pub { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--border-subtle); flex-wrap: wrap; }
.pub .flags { font-size: 13px; color: var(--warning-text); display: inline-flex; align-items: center; gap: 6px; }
.pub .spacer { flex: 1; }
.board { overflow-x: auto; padding: 14px 16px 16px; }
.board-grid { display: grid; grid-template-columns: repeat(7, minmax(86px, 1fr)); gap: 8px; }
.slot .slot-name { margin: 0 0 6px; font-size: 12px; font-weight: 600; color: var(--ink-500); display: flex; justify-content: space-between; }
.sec { font-size: 12.5px; line-height: 1.3; border: 1px solid var(--border); border-radius: 6px; padding: 6px 7px; margin-bottom: 6px; display: grid; grid-template-columns: 6px 1fr; gap: 6px; align-items: start; color: var(--ink-900); background: var(--surface); }
.sec i { width: 6px; height: 6px; border-radius: 50%; margin-top: 5px; }
.sec small { grid-column: 2; font-size: 11.5px; color: var(--ink-500); }
.sec.mine { border: 2px solid var(--green-600); padding: 5px 6px; background: var(--green-50); }
.sec.mine small { color: var(--ink-700); }
.sec.warn small { color: var(--warning-text); }

/* ---------- pricing: plans, tiers, estimator (landing + pricing page) ---------- */
.price-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 56px; align-items: start; }
.plans { display: grid; gap: 0; border-top: 1px solid var(--ink-900); }
.plan-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px 24px; padding: 26px 0; border-bottom: 1px solid var(--border-strong); }
.plan-row h3 { font-family: var(--font-display); font-weight: 700; font-size: 22px; line-height: 1.2; letter-spacing: -0.015em; }
.plan-row .price { text-align: right; font: 700 34px/1 var(--font-display); letter-spacing: -0.03em; }
.plan-row .price small { display: block; font: 400 13.5px/1.4 var(--font-body); letter-spacing: 0; color: var(--ink-700); margin-top: 6px; }
.plan-row > p { color: var(--ink-700); font-size: 15.5px; max-width: 32em; }
.plan-row .facts { grid-column: 1 / -1; margin-top: 4px; }
.plan-row .btn { grid-column: 1; width: fit-content; margin-top: 6px; }
.tiers { grid-column: 1 / -1; margin-top: 10px; width: 100%; font-size: 14px; border-collapse: collapse; }
.tiers td, .tiers th { padding: 9px 12px 9px 0; background: none; text-align: left; border-bottom: 1px solid var(--border-subtle); }
.tiers th { padding-top: 0; font-size: 12.5px; font-weight: 600; color: var(--ink-500); }
.tiers td { color: var(--ink-700); }
.tiers td:last-child, .tiers th:last-child { text-align: right; padding-right: 0; }
.tiers tr.is-active td { color: var(--green-800); font-weight: 600; }
.estimator { position: sticky; top: calc(var(--nav-h) + 28px); background: var(--canvas); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 28px; }
.section--white .estimator { background: var(--canvas); }
.estimator h3 { font-family: var(--font-display); font-weight: 700; font-size: 22px; line-height: 1.2; letter-spacing: -0.015em; }
.estimator > p { margin-top: 8px; font-size: 15px; color: var(--ink-700); }
.est-input { margin-top: 22px; display: flex; align-items: center; gap: 12px; }
.est-input label { font-size: 14px; font-weight: 600; color: var(--ink-700); }
.est-input input[type="number"] { width: 120px; font: 500 16px/1 var(--font-body); font-variant-numeric: tabular-nums; color: var(--ink-900); border: 1px solid var(--border-strong); border-radius: var(--radius-md); padding: 10px 12px; background: var(--surface); }
.est-input input[type="number"]:focus-visible { outline: none; border-color: var(--green-600); box-shadow: 0 0 0 3px var(--green-100); }
input[type="range"] { width: 100%; margin: 18px 0 4px; accent-color: var(--green-700); }
.range-labels { position: relative; height: 18px; font-size: 12.5px; color: var(--ink-700); }
.range-labels span { position: absolute; top: 0; white-space: nowrap; }
.range-labels span:first-child { left: 0; }
.range-labels span:last-child { right: 0; }
.range-labels span[style] { left: var(--at); transform: translateX(-50%); }
.est-total { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border-strong); display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.est-total .num { font: 700 44px/1 var(--font-display); letter-spacing: -0.03em; }
.est-total span { color: var(--ink-700); font-size: 15px; }
.est-lines { margin-top: 14px; display: grid; gap: 6px; font-size: 14px; color: var(--ink-700); }
.est-lines li { display: flex; justify-content: space-between; gap: 12px; }
.est-actions { margin-top: 22px; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--ink-900); }
.faq details { border-bottom: 1px solid var(--border-strong); }
.faq summary { list-style: none; display: grid; grid-template-columns: minmax(0, 1fr) 24px; gap: 16px; align-items: center; padding: 20px 0; cursor: pointer; font-size: 18px; font-weight: 600; line-height: 1.35; color: var(--ink-900); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--green-800); }
.faq summary svg { color: var(--ink-500); transition: transform .2s var(--ease-out); }
.faq details[open] summary svg { transform: rotate(45deg); color: var(--green-800); }
.faq .faq-body { padding: 0 40px 22px 0; color: var(--ink-700); font-size: 16px; max-width: 62ch; }
.faq .faq-body p + p { margin-top: 10px; }
.faq .faq-body b { color: var(--ink-900); font-weight: 600; }

/* ---------- legal and long-form prose ---------- */
.prose { max-width: 62ch; font-size: 16.5px; line-height: 1.75; color: var(--ink-700); }
.prose > section { padding-top: 40px; margin-top: 40px; border-top: 1px solid var(--border); }
.prose > section:first-child { padding-top: 0; margin-top: 0; border-top: 0; }
.prose h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(24px, 2.4vw, 30px); line-height: 1.15; letter-spacing: -0.02em; color: var(--ink-900); margin-bottom: 16px; }
.prose h3 { font-size: 18px; font-weight: 600; color: var(--ink-900); margin: 26px 0 8px; }
.prose p { margin: 0 0 14px; }
.prose p:last-child { margin-bottom: 0; }
.prose ul { list-style: disc; padding-left: 22px; margin: 0 0 14px; }
.prose ul ul { margin: 8px 0 0; list-style: circle; }
.prose li { margin-bottom: 8px; padding-left: 4px; }
.prose li::marker { color: var(--ink-500); }
.prose b, .prose strong { color: var(--ink-900); font-weight: 600; }
.callout { background: var(--green-50); border: 1px solid var(--green-200); border-radius: var(--radius-lg); padding: 18px 22px; margin: 18px 0; }
.callout p { margin: 0; color: var(--ink-900); }
.placeholder { background: var(--warning-bg); color: var(--warning-text); padding: 0 5px; border-radius: 4px; font-weight: 600; }

/* ---------- forms ---------- */
.field { display: grid; gap: 6px; align-content: start; }
.field label, .field .label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink-700); }
.field .opt { font-weight: 400; color: var(--ink-500); }
.field input, .field select, .field textarea {
  width: 100%; font: 400 15px/1.4 var(--font-body); color: var(--ink-900); background: var(--surface);
  border: 1px solid var(--border-strong); border-radius: var(--radius-md); padding: 12px 13px;
}
.field textarea { min-height: 160px; resize: vertical; line-height: 1.55; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink-500); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible { outline: none; border-color: var(--green-600); box-shadow: 0 0 0 3px var(--green-100); }
.field input[aria-invalid="true"], .field textarea[aria-invalid="true"] { border-color: var(--danger); }
.field .hint { font-size: 13px; color: var(--ink-500); }
.field .count { font-size: 12.5px; color: var(--ink-500); text-align: right; font-variant-numeric: tabular-nums; }
.field .count.over { color: var(--danger-text); font-weight: 600; }
.form-msg { min-height: 20px; font-size: 14px; font-weight: 600; margin: 0; color: var(--danger-text); }
.choice-row { display: flex; flex-wrap: wrap; gap: 8px; }
.choice { position: relative; }
.choice input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.choice span { display: inline-flex; align-items: center; min-height: 40px; padding: 0 14px; border: 1px solid var(--border-strong); border-radius: 999px; background: var(--surface); font-size: 14.5px; font-weight: 500; color: var(--ink-700); }
.choice input:checked + span { background: var(--green-50); border-color: var(--green-600); color: var(--green-800); font-weight: 600; }
.choice input:focus-visible + span { outline: 2px solid var(--green-700); outline-offset: 2px; }

/* ---------- CTA band (green field) ---------- */
.close { background: var(--green-700); color: #fff; padding-block: 112px; }
.close h2 { font-family: var(--font-display); font-weight: 700; font-size: clamp(34px, 4vw, 58px); line-height: 1.0; letter-spacing: -0.03em; text-wrap: balance; max-width: 14em; }
.close .close-text { margin-top: 18px; font-size: 18px; color: var(--green-50); max-width: 36em; }
.close .btn-row { margin-top: 32px; }
.close-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 64px; align-items: start; }
.offers { margin-top: 36px; border-top: 1px solid rgba(255, 255, 255, 0.4); }
.offers li { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px; padding: 18px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.4); align-items: baseline; }
.offers b { font-size: 17px; font-weight: 600; }
.offers span { color: var(--green-50); font-size: 15px; }
.offers .num { font: 700 26px/1 var(--font-display); letter-spacing: -0.02em; color: #fff; }
.close-form { background: var(--surface); color: var(--ink-900); border-radius: var(--radius-xl); padding: 32px; }
.close-form h3 { font-family: var(--font-display); font-weight: 700; font-size: 22px; line-height: 1.2; letter-spacing: -0.015em; }
.close-form form { margin-top: 20px; display: grid; gap: 14px; }
.close-form .fine { font-size: 13.5px; color: var(--ink-500); line-height: 1.5; }
.close :focus-visible { outline-color: #fff; }
.close-form :focus-visible { outline-color: var(--green-700); }

/* ---------- footer ---------- */
footer { background: var(--ink-900); color: var(--ink-300); padding-block: 64px 40px; font-size: 15px; }
.foot-grid { display: grid; grid-template-columns: minmax(0, 2fr) repeat(4, minmax(0, 1fr)); gap: 40px; }
footer .brand { color: #fff; }
footer .brand:hover { color: #fff; }
footer .tagline { margin-top: 14px; max-width: 18em; }
footer h2, footer h3 { font-size: 14px; font-weight: 600; color: #fff; margin-bottom: 12px; }
footer li + li { margin-top: 8px; }
footer a { color: var(--ink-300); text-decoration: none; display: inline-block; padding-block: 2px; }
footer a:hover { color: #fff; text-decoration: underline; }
footer :focus-visible { outline-color: var(--green-400); }
.legal { margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--ink-700); font-size: 14px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* ---------- small standalone pages (404, billing results) ---------- */
.solo { min-height: calc(100vh - var(--nav-h)); display: grid; place-items: center; padding: 64px var(--gutter); }
.solo-card { width: 100%; max-width: 520px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-xl); padding: 40px; }
.solo-card .solo-icon { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; background: var(--green-50); color: var(--green-700); margin-bottom: 22px; }
.solo-card .solo-icon--neutral { background: var(--sunken); color: var(--ink-700); }
.solo-card h1 { font-family: var(--font-display); font-weight: 700; font-size: 32px; line-height: 1.1; letter-spacing: -0.02em; }
.solo-card p { margin-top: 12px; color: var(--ink-700); }
.solo-card .btn-row { margin-top: 28px; }
.solo-card .fine { margin-top: 20px; font-size: 14px; color: var(--ink-500); }

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .nav-links, .nav-actions > .btn--ghost { display: none; }
  .nav-toggle { display: grid; }
  .price-grid, .close-grid { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .plan { grid-template-columns: minmax(0, 1fr); }
  .advisor { border-right: 0; border-bottom: 1px solid var(--border-subtle); }
  .sched { grid-template-columns: minmax(0, 1fr); }
  .demand { border-right: 0; border-bottom: 1px solid var(--border-subtle); }
  .estimator { position: static; }
  .doc { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .doc-index { position: sticky; top: var(--nav-h); z-index: 20; max-height: none; overflow: visible; margin: 0 calc(-1 * var(--gutter)) 32px; padding: 10px var(--gutter); background: rgba(246, 247, 243, 0.97); border-bottom: 1px solid var(--border); }
  .doc-index h2 { display: none; }
  .doc-index ol { display: flex; gap: 6px; overflow-x: auto; border-left: 0; scrollbar-width: none; }
  .doc-index ol::-webkit-scrollbar { display: none; }
  .doc-index a { display: flex; gap: 6px; white-space: nowrap; margin: 0; border: 1px solid var(--border-strong); border-radius: 999px; padding: 8px 14px; font-size: 14px; background: var(--surface); }
  .doc-index a[aria-current="true"] { border-color: var(--green-600); background: var(--green-50); }
}
@media (max-width: 760px) {
  :root { --nav-h: 60px; }
  body { font-size: 16px; }
  .nav .wrap { gap: 12px; }
  .page-hero { padding: 40px 0 36px; }
  .page-hero .lead { font-size: 17px; margin-top: 18px; }
  .section { padding-block: 72px; }
  .rows > div { grid-template-columns: minmax(0, 1fr); padding: 20px 0 22px; }
  .rows--3 { grid-template-columns: minmax(0, 1fr); }
  .rows--3 > div { padding: 18px 0 20px; }
  .years { grid-template-columns: 1fr 1fr; }
  .year:nth-child(2) { border-right: 0; }
  .year:nth-child(-n+2) { border-bottom: 1px solid var(--border-subtle); }
  .reqs { grid-template-columns: minmax(0, 1fr); }
  .tree { padding: 14px 12px 16px; }
  .tree-grid { grid-template-columns: 40px repeat(3, minmax(0, 1fr)); gap: 0 6px; }
  .cell { flex-direction: column; gap: 6px; }
  .tnode { flex: none; }
  .tnode b { font-size: 11px; padding: 3px 6px; }
  .tnode span { font-size: 11.5px; padding: 5px 6px 6px; }
  .lane-head, .grade { font-size: 11.5px; }
  .plan-row { grid-template-columns: minmax(0, 1fr); }
  .plan-row .price { text-align: left; }
  .panel-bar .mock-input { display: none; }
  .panel td, .panel th { padding-inline: 12px; }
  .hide-sm { display: none; }
  .demand td, .demand th { padding-inline: 10px; }
  .demand .bar, .panel td .bar { display: none; }
  .board-grid { grid-template-columns: repeat(7, 112px); }
  .close { padding-block: 72px; }
  .close-form { padding: 24px 20px; }
  .faq summary { font-size: 16.5px; padding: 18px 0; }
  .faq .faq-body { padding-right: 0; font-size: 15.5px; }
  .prose { font-size: 16px; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid > :first-child { grid-column: 1 / -1; }
  .solo-card { padding: 28px 22px; }
}
@media (max-width: 520px) {
  .nav-actions > .btn { display: none; }
}
@media (max-width: 420px) {
  .years { grid-template-columns: minmax(0, 1fr); }
  .year { border-right: 0 !important; border-bottom: 1px solid var(--border-subtle); }
  .btn-row > .btn { flex: 1 1 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0s !important; }
}