/* StorageFit design system.
   Technical but friendly: diagrams over stock photography, measurements set in a
   monospaced face so 10×10 and 100 sq ft read as data, and no web fonts at all —
   the system stack costs nothing and never causes a layout shift. */

:root {
  --navy-900: #0d2137;
  --navy-800: #123152;
  --navy-700: #1b4570;
  --navy-100: #e7eef5;
  --navy-050: #f4f7fa;

  --accent: #0f7a5a;
  --accent-dark: #0b5f46;
  --accent-light: #e6f4ef;

  --amber: #b45309;
  --amber-light: #fdf3e3;
  --red: #b42318;

  --ink: #16202b;
  --ink-soft: #4a5765;
  --ink-faint: #6b7887;
  --rule: #dfe4ea;
  --rule-soft: #eceff3;
  --bg: #ffffff;
  --bg-warm: #f8f9fa;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(16, 32, 48, .06), 0 8px 24px rgba(16, 32, 48, .06);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --measure: 68ch;
  --wrap: 1120px;
  --wrap-wide: 1320px;
}

*, *::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;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.62;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 20px; }
.wrap-wide { max-width: var(--wrap-wide); }

.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: -9999px; top: 0; z-index: 100;
  background: var(--navy-900); color: #fff; padding: 12px 18px; border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus { left: 0; }

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

a { color: var(--navy-700); text-underline-offset: 2px; }
a:hover { color: var(--accent-dark); }

h1, h2, h3, h4 { line-height: 1.22; letter-spacing: -0.012em; margin: 0 0 .5em; font-weight: 700; color: var(--navy-900); }
h1 { font-size: clamp(1.9rem, 1.3rem + 2.4vw, 2.85rem); }
h2 { font-size: clamp(1.4rem, 1.1rem + 1.1vw, 1.85rem); margin-top: 0; }
h3 { font-size: 1.15rem; }
p, li { max-width: var(--measure); }
p { margin: 0 0 1.05em; }

/* ------------------------------- site header ------------------------------ */
.site-header { border-bottom: 1px solid var(--rule); background: #fff; position: sticky; top: 0; z-index: 40; }
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 66px; }

.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 1.12rem; color: var(--navy-900); text-decoration: none; }
.brand-mark { width: 20px; height: 20px; border: 3px solid var(--accent); border-radius: 4px; display: inline-block; }

.primary-nav { margin-left: auto; }
.nav-list { display: flex; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-list > li { position: relative; max-width: none; }
.nav-list a { display: block; padding: 9px 12px; border-radius: var(--radius-sm); font-size: .95rem; font-weight: 600; color: var(--ink-soft); text-decoration: none; }
.nav-list a:hover, .nav-list a[aria-current] { background: var(--navy-050); color: var(--navy-900); }

.sub-menu {
  position: absolute; left: 0; top: 100%; min-width: 240px; list-style: none; margin: 0; padding: 8px;
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius); box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(-4px); transition: .12s;
}
.sub-menu li { max-width: none; }
.has-menu:hover .sub-menu, .has-menu:focus-within .sub-menu { opacity: 1; visibility: visible; transform: none; }
.sub-menu a { font-weight: 500; }

.header-cta { margin-left: 6px; }
.nav-toggle { display: none; width: 44px; height: 44px; margin-left: auto; background: none; border: 1px solid var(--rule); border-radius: var(--radius-sm); cursor: pointer; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--navy-900); margin: 4px auto; }
.mobile-nav { border-top: 1px solid var(--rule); }
.mobile-nav ul { list-style: none; margin: 0; padding: 8px 20px 16px; }
.mobile-nav li { max-width: none; }
.mobile-nav a { display: block; padding: 12px 4px; border-bottom: 1px solid var(--rule-soft); text-decoration: none; font-weight: 600; }

/* --------------------------------- buttons -------------------------------- */
.btn {
  display: inline-block; padding: 11px 18px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .96rem; text-decoration: none; cursor: pointer;
  border: 1px solid transparent; min-height: 44px; line-height: 1.4;
}
.btn-cta { background: var(--accent); color: #fff; }
.btn-cta:hover { background: var(--accent-dark); color: #fff; }
.btn-ghost { background: #fff; border-color: var(--rule); color: var(--navy-800); }
.btn-ghost:hover { border-color: var(--navy-700); color: var(--navy-900); }
.btn-lg { padding: 15px 26px; font-size: 1.05rem; }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.link-btn { background: none; border: 0; color: var(--navy-700); text-decoration: underline; cursor: pointer; font: inherit; padding: 0 4px; }

/* ------------------------------- breadcrumbs ------------------------------ */
.breadcrumbs { border-bottom: 1px solid var(--rule-soft); background: var(--bg-warm); }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0; padding: 10px 0; font-size: .87rem; }
.breadcrumbs li { max-width: none; color: var(--ink-faint); }
.breadcrumbs li + li::before { content: "›"; margin-right: 6px; color: var(--ink-faint); }

/* ------------------------------ article header ---------------------------- */
.article-header { padding: 40px 0 12px; }
.answer-summary { font-size: 1.16rem; line-height: 1.6; color: var(--ink-soft); max-width: 66ch; }
.header-facts { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; margin: 18px 0 0; padding: 0; }
.header-facts li {
  max-width: none; font-size: .88rem; padding: 7px 13px; background: var(--navy-050);
  border: 1px solid var(--navy-100); border-radius: 999px; color: var(--navy-800);
}
.header-facts strong { font-family: var(--mono); }

/* --------------------------------- sections ------------------------------- */
.section { padding: 30px 0; border-top: 1px solid var(--rule-soft); }
.section:first-of-type { border-top: 0; }
.section-intro { color: var(--ink-soft); }
.section-more { margin-top: 18px; font-weight: 600; }

.prose h3 { margin-top: 1.6em; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li { margin-bottom: .4em; }

/* ---------------------------------- tables -------------------------------- */
.table-wrap { overflow-x: auto; margin: 0 0 18px; }
table { border-collapse: collapse; width: 100%; font-size: .94rem; }
caption { text-align: left; font-size: .87rem; color: var(--ink-faint); padding-bottom: 8px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
thead th { background: var(--navy-050); color: var(--navy-900); font-size: .85rem; text-transform: uppercase; letter-spacing: .04em; border-bottom: 1px solid var(--rule); }
tbody th { font-weight: 600; }
td { font-variant-numeric: tabular-nums; }
.table-note { font-size: .85rem; color: var(--ink-faint); margin-top: -6px; max-width: 78ch; }

.quick-facts table { border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; }
.quick-facts th { width: 42%; background: var(--navy-050); }

/* ------------------------------- floor plans ------------------------------ */
.floor-plan { margin: 22px 0; }
.floor-plan svg { max-width: 100%; height: auto; }
.floor-plan figcaption { font-size: .85rem; color: var(--ink-faint); max-width: 70ch; margin-top: 8px; }
.fp-unit { fill: var(--navy-050); stroke: var(--navy-700); stroke-width: 2; }
.fp-ref { fill: #fff; stroke: var(--ink-faint); stroke-width: 1.5; stroke-dasharray: 4 3; }
.fp-aisle { fill: #fff; opacity: .75; }
.fp-item { fill: var(--accent-light); stroke: var(--accent); stroke-width: 1.2; }
.fp-door { stroke: var(--accent); stroke-width: 5; stroke-linecap: round; }
.fp-dim { font: 700 17px var(--mono); fill: var(--navy-900); }
.fp-sub { font: 400 12px var(--font); fill: var(--ink-faint); }
.fp-label { font: 600 11px var(--font); fill: var(--accent-dark); }
.fp-warn { font: 600 12px var(--font); fill: var(--red); }
.plan-pair, .plan-row { display: flex; flex-wrap: wrap; gap: 24px; align-items: flex-start; }

/* ---------------------------------- lists --------------------------------- */
.tick-list, .cross-list { list-style: none; padding: 0; }
.tick-list li, .cross-list li { position: relative; padding-left: 28px; margin-bottom: .5em; }
.tick-list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.cross-list li::before { content: "✕"; position: absolute; left: 0; color: var(--red); font-weight: 700; }
.layout-list { padding-left: 1.2em; }
.layout-list li { margin-bottom: .6em; }
.two-col { display: grid; gap: 28px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ---------------------------------- cards --------------------------------- */
.card-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(270px, 1fr)); list-style: none; padding: 0; margin: 0; }
.card { max-width: none; }
.card a {
  display: flex; flex-direction: column; gap: 6px; height: 100%; padding: 18px;
  border: 1px solid var(--rule); border-radius: var(--radius); text-decoration: none; color: var(--ink); background: #fff;
}
.card a:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.card-title { font-weight: 700; font-size: 1.15rem; color: var(--navy-900); }
.card-meta { font-family: var(--mono); font-size: .84rem; color: var(--accent-dark); }
.card-text { font-size: .93rem; color: var(--ink-soft); }
.card-action { margin-top: auto; padding-top: 8px; font-size: .88rem; font-weight: 600; color: var(--navy-700); }

/* -------------------------------- callouts -------------------------------- */
.callout { border-left: 4px solid var(--navy-700); background: var(--navy-050); padding: 14px 18px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 18px 0; }
.callout p { margin-bottom: .5em; }
.callout p:last-child { margin-bottom: 0; }
.callout-warn { border-color: var(--amber); background: var(--amber-light); }
.callout-title { font-weight: 700; margin-bottom: .3em; }

/* -------------------------------- questions ------------------------------- */
.question-cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); list-style: none; padding: 0; margin: 0; }
.question-cards li { max-width: none; }
.question-cards details {
  height: 100%; background: #fff; border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 16px 18px;
}
.question-cards summary { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; list-style: none; }
.question-cards summary::-webkit-details-marker { display: none; }
.question-cards summary::after {
  content: "⌄"; margin-left: auto; color: var(--ink-faint); font-size: 1.1rem;
  line-height: 1; transition: transform .15s;
}
.question-cards details[open] summary::after { transform: rotate(180deg); }
.question-cards summary h3 { margin: 0; font-size: .98rem; }
.question-cards .answer { margin-top: 10px; font-size: .9rem; color: var(--ink-soft); }
.question-cards .answer p { margin-bottom: 0; max-width: none; }

.questions-section { background: var(--bg-warm); }
.question { padding: 16px 0; border-bottom: 1px solid var(--rule-soft); }
.question:last-child { border-bottom: 0; }
.question h3 { margin-bottom: .35em; }
.answer p:last-child { margin-bottom: 0; }

/* ---------------------------- related + byline ---------------------------- */
.related-entities { background: var(--navy-900); color: #fff; padding: 34px 0; margin-top: 34px; }
.related-entities h2 { color: #fff; font-size: 1.2rem; }
.related-entities h3 { color: #9fc3e0; font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; }
.related-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.related-group ul { list-style: none; margin: 0; padding: 0; }
.related-group li { margin-bottom: .45em; max-width: none; }
.related-group a { color: #dce9f4; font-size: .94rem; }
.related-group a:hover { color: #fff; }

.article-footer { background: var(--bg-warm); border-top: 1px solid var(--rule); padding: 22px 0; }
.byline { display: flex; flex-wrap: wrap; gap: 26px; margin: 0 0 10px; }
.byline div { display: flex; flex-direction: column; }
.byline dt { font-size: .76rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-faint); }
.byline dd { margin: 0; font-size: .92rem; font-weight: 600; }
.byline-note { font-size: .84rem; color: var(--ink-faint); max-width: 82ch; margin: 0; }

/* -------------------------------- home page ------------------------------- */
/* Alternating bands give the page a rhythm; without them a long routing page
   reads as one undifferentiated column of cards. */
.band-soft { background: var(--bg-warm); }
.page-home .section { padding: 46px 0; border-top: 0; }
.page-home .section > .wrap > h2 { font-size: clamp(1.5rem, 1.15rem + 1.3vw, 2rem); margin-bottom: .3em; }
.section-cta { margin-top: 22px; text-align: center; }
.section-cta .btn { font-weight: 600; }

.home-hero { padding: 48px 0 40px; background: linear-gradient(170deg, var(--navy-050) 0%, #fff 78%); }
.home-hero-inner { display: grid; gap: 40px; grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr); align-items: center; }
.home-hero h1 { margin-bottom: .3em; }
.hero-actions { margin: 26px 0 12px; }
.hero-trust { font-size: .86rem; color: var(--ink-faint); }

.hero-units { margin: 0; }
.hero-units-row { display: flex; gap: 14px; align-items: flex-end; justify-content: center; flex-wrap: wrap; }
.hero-unit { position: relative; display: flex; flex-direction: column; align-items: center; gap: 8px; flex: 0 1 auto; min-width: 0; }
.hero-unit-tag {
  font-family: var(--mono); font-size: .82rem; font-weight: 700; color: #fff;
  background: var(--accent); padding: 3px 10px; border-radius: 999px; letter-spacing: .01em;
}
.hero-unit .illus-unit { width: 100%; height: auto; }
.hero-units figcaption { text-align: center; font-size: .82rem; color: var(--ink-faint); margin-top: 16px; }
@media (max-width: 900px) { .home-hero-inner { grid-template-columns: 1fr; gap: 28px; } }

/* Illustrations share one sizing contract so cards stay on a grid. */
.illus { display: block; max-width: 100%; height: auto; }
.illus-unit { width: 100%; height: auto; }
.illus-iso { width: 100%; max-width: 150px; }
.illus-vignette { width: 100%; max-width: 130px; }
.illus-tool { width: 100%; max-width: 140px; }
.ico { width: 22px; height: 22px; flex: 0 0 auto; }

/* Quick selector */
.pick-grid { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(132px, 1fr)); list-style: none; padding: 0; margin: 0; }
@media (min-width: 1080px) { .pick-grid { grid-template-columns: repeat(7, 1fr); } }
.pick-card { max-width: none; }
.pick-card a {
  display: flex; flex-direction: column; align-items: center; gap: 2px; height: 100%;
  padding: 16px 12px 18px; background: #fff; border: 1px solid var(--rule);
  border-radius: var(--radius); text-decoration: none; text-align: center; transition: border-color .15s, box-shadow .15s;
}
.pick-card a:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.pick-art { display: block; margin-bottom: 8px; }
.pick-title { font-weight: 700; color: var(--navy-900); font-size: .98rem; }
.pick-line { font-family: var(--mono); font-size: .78rem; color: var(--ink-faint); line-height: 1.45; }

/* Size cards */
.size-grid { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); list-style: none; padding: 0; margin: 0; }
@media (min-width: 1360px) { .size-grid { grid-template-columns: repeat(6, 1fr); } }
.size-card { max-width: none; }
.size-card a {
  display: flex; flex-direction: column; height: 100%; padding: 16px 14px;
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius);
  text-decoration: none; color: var(--ink); transition: border-color .15s, box-shadow .15s;
}
.size-card a:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.size-card-head { font-family: var(--mono); font-size: 1.4rem; font-weight: 700; color: var(--accent-dark); }
.size-card-art { display: block; margin: 4px 0 10px; }
.size-card-meta { font-family: var(--mono); font-size: .76rem; color: var(--ink-faint); line-height: 1.7; margin-bottom: 8px; white-space: nowrap; }
.size-card-text { font-size: .86rem; color: var(--ink-soft); line-height: 1.5; }
.size-card-action { margin-top: auto; padding-top: 12px; font-size: .88rem; font-weight: 600; color: var(--navy-700); }

/* Tool cards */
.tool-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); list-style: none; padding: 0; margin: 0; }
.tool-card { max-width: none; }
.tool-card a {
  display: flex; flex-direction: column; height: 100%; padding: 18px;
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius);
  text-decoration: none; color: var(--ink); transition: border-color .15s, box-shadow .15s;
}
.tool-card a:hover { border-color: var(--accent); box-shadow: var(--shadow); }
.tool-art { display: block; margin-bottom: 12px; }
.tool-title { font-weight: 700; font-size: 1.02rem; color: var(--navy-900); }
.tool-meta { font-family: var(--mono); font-size: .78rem; color: var(--accent-dark); margin: 2px 0 8px; }
.tool-text { font-size: .89rem; color: var(--ink-soft); }
.tool-action { margin-top: auto; padding-top: 12px; font-size: .86rem; font-weight: 600; color: var(--navy-700); }

/* Cost split */
.cost-split { display: grid; gap: 24px; grid-template-columns: minmax(0, 1.7fr) minmax(250px, .9fr); align-items: start; }
@media (max-width: 900px) { .cost-split { grid-template-columns: 1fr; } }
.cost-aside { background: var(--accent-light); border: 1px solid #cfe6dc; border-radius: var(--radius); padding: 20px; }
.cost-aside p { font-size: .9rem; color: var(--ink-soft); }
.cost-aside-icon { display: inline-flex; color: var(--accent-dark); margin-bottom: 8px; }
.cost-aside-cta { margin-bottom: 0; }

/* Trust */
.trust-grid { display: grid; gap: 22px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); list-style: none; padding: 0; margin: 0 0 26px; }
.trust-item { display: flex; gap: 12px; max-width: none; }
.trust-item h3 { font-size: 1rem; margin-bottom: .25em; }
.trust-item p { font-size: .89rem; color: var(--ink-soft); margin: 0; }
.trust-icon { display: inline-flex; color: var(--accent); padding-top: 2px; }
.trust-links {
  display: flex; flex-wrap: wrap; gap: 10px 26px; list-style: none; padding: 16px 0 0; margin: 0;
  border-top: 1px solid var(--rule);
}
.trust-links li { max-width: none; }
.trust-links a { display: inline-flex; align-items: center; gap: 7px; font-size: .89rem; font-weight: 600; text-decoration: none; }
.trust-links a:hover { text-decoration: underline; }
.trust-links .ico { width: 18px; height: 18px; color: var(--accent); }

/* -------------------------------- the tools ------------------------------- */
.tool-mount { padding-block: 22px 8px; }
.calc { display: grid; gap: 24px; grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr); align-items: start; }
@media (max-width: 980px) { .calc { grid-template-columns: 1fr; } }

.calc-shell, .calc-form, .cost-form, .box-form, .vol-form { min-width: 0; }
.calc-h { font-size: 1.1rem; margin-bottom: .3em; }
.calc-sub { font-size: .92rem; color: var(--ink-faint); }

.calc-progress { margin-bottom: 18px; }
.step-label { font-size: .88rem; font-weight: 600; color: var(--navy-800); margin-bottom: 6px; }
progress { width: 100%; height: 8px; border-radius: 999px; overflow: hidden; border: 0; background: var(--navy-100); }
progress::-webkit-progress-bar { background: var(--navy-100); }
progress::-webkit-progress-value { background: var(--accent); }
progress::-moz-progress-bar { background: var(--accent); }

.calc-step { border: 0; padding: 0; margin: 0 0 8px; }
.calc-step > legend { padding: 0; }
.calc-nav { display: flex; gap: 10px; margin-top: 18px; }

.preset-row { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); margin: 12px 0 4px; }
.preset-option input { position: absolute; opacity: 0; }
.preset-label { display: flex; flex-direction: column; gap: 2px; padding: 12px 14px; border: 1px solid var(--rule); border-radius: var(--radius); cursor: pointer; background: #fff; }
.preset-label em { font-style: normal; font-size: .8rem; color: var(--ink-faint); }
.preset-option input:checked + .preset-label { border-color: var(--accent); background: var(--accent-light); box-shadow: inset 0 0 0 1px var(--accent); }
.preset-option input:focus-visible + .preset-label { outline: 3px solid var(--accent); outline-offset: 2px; }

.field { margin-bottom: 14px; }
.field-narrow { max-width: 340px; }
.field > label, .field > legend, fieldset > legend { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 5px; }
input[type="text"], input[type="search"], input[type="number"], input[type="date"], select {
  width: 100%; padding: 10px 12px; font: inherit; font-size: .96rem; color: var(--ink);
  border: 1px solid var(--rule); border-radius: var(--radius-sm); background: #fff; min-height: 44px;
}
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink-soft) 50%), linear-gradient(135deg, var(--ink-soft) 50%, transparent 50%); background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 34px; }
.field-radio, .field-check { border: 0; padding: 0; margin: 0 0 16px; }
.radio, .check { display: flex; gap: 10px; align-items: flex-start; padding: 9px 0; cursor: pointer; max-width: var(--measure); }
.radio input, .check input { margin-top: 3px; width: 18px; height: 18px; flex: 0 0 auto; }
.radio em, .check em { display: block; font-style: normal; font-size: .84rem; color: var(--ink-faint); }
.field-error { color: var(--red); font-size: .88rem; font-weight: 600; }

.calc-search { margin: 12px 0; }
.running-total { font-weight: 600; font-size: .95rem; }
.running-total output { font-family: var(--mono); color: var(--accent-dark); }

.room { border: 1px solid var(--rule); border-radius: var(--radius); margin-bottom: 10px; background: #fff; }
.room > summary { display: flex; align-items: center; gap: 10px; padding: 12px 16px; cursor: pointer; list-style: none; min-height: 48px; }
.room > summary::-webkit-details-marker { display: none; }
.room > summary::before { content: "▸"; color: var(--ink-faint); transition: transform .15s; }
.room[open] > summary::before { transform: rotate(90deg); }
.room summary h3 { margin: 0; font-size: 1rem; }
.room-count { margin-left: auto; font-size: .82rem; color: var(--accent-dark); font-family: var(--mono); }

.item-list { list-style: none; margin: 0; padding: 0 16px 12px; }
.item { display: flex; align-items: center; gap: 12px; padding: 7px 0; border-top: 1px solid var(--rule-soft); max-width: none; }
.item-name { flex: 1; font-size: .93rem; }
.item-cuft { font-family: var(--mono); font-size: .8rem; color: var(--ink-faint); white-space: nowrap; }
.qty { display: flex; align-items: center; gap: 4px; flex: 0 0 auto; }
.qty-btn { width: 36px; height: 36px; border: 1px solid var(--rule); background: #fff; border-radius: var(--radius-sm); font-size: 1.05rem; cursor: pointer; color: var(--navy-800); }
.qty-btn:hover { border-color: var(--accent); color: var(--accent-dark); }
.qty-input { width: 56px; text-align: center; padding: 6px; min-height: 36px; font-family: var(--mono); }

.custom-item { margin-top: 14px; }
.custom-item summary h3 { display: inline; font-size: .95rem; }
.custom-fields { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); align-items: end; padding: 12px 0; }
.custom-list { list-style: none; padding: 0; font-size: .9rem; }

/* --------------------------------- results -------------------------------- */
.calc-result { position: sticky; top: 84px; }
@media (max-width: 980px) { .calc-result { position: static; } }
.result-inner { border: 1px solid var(--rule); border-radius: var(--radius); padding: 20px; background: var(--bg-warm); box-shadow: var(--shadow); }
.result-h { font-size: 1.05rem; }
.result-output { display: block; }
.result-empty { color: var(--ink-faint); font-size: .93rem; }
.result-note { font-size: .8rem; color: var(--ink-faint); margin: 14px 0 0; }

.result-card { background: var(--navy-900); color: #fff; border-radius: var(--radius); padding: 18px 20px; margin-bottom: 14px; }
.result-label { font-size: .76rem; text-transform: uppercase; letter-spacing: .07em; color: #9fc3e0; margin-bottom: 2px; }
.result-size { font-family: var(--mono); font-size: 2.4rem; font-weight: 700; line-height: 1.05; margin: 0 0 4px; }
.result-unit { font-size: 1.1rem; font-weight: 400; }
.result-sub { font-size: .87rem; color: #c6dced; margin-bottom: 6px; }
.result-cost { font-size: .95rem; color: #fff; margin: 8px 0 0; }
.result-over { background: var(--amber); }

.result-alts { display: grid; gap: 10px; grid-template-columns: 1fr 1fr; margin-bottom: 14px; }
@media (max-width: 460px) { .result-alts { grid-template-columns: 1fr; } }
.result-alt { border: 1px solid var(--rule); border-radius: var(--radius-sm); padding: 12px; background: #fff; }
.result-alt .result-label { color: var(--ink-faint); }
.result-alt-size { font-family: var(--mono); font-size: 1.3rem; font-weight: 700; margin: 0 0 2px; }
.result-alt .result-sub { color: var(--ink-faint); font-size: .8rem; }

.result-stats { display: grid; gap: 2px 16px; grid-template-columns: 1fr; margin: 0 0 14px; }
.result-stats div { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px solid var(--rule-soft); }
.result-stats dt { font-size: .87rem; color: var(--ink-soft); }
.result-stats dd { margin: 0; font-size: .89rem; font-weight: 600; font-family: var(--mono); text-align: right; }

.result-why { font-size: .91rem; margin-bottom: 14px; }
.result-why h3 { font-size: .95rem; }
.result-why p { max-width: none; }
.result-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.result-actions .btn { font-size: .88rem; padding: 9px 14px; }
.result-inventory summary h3 { display: inline; font-size: .93rem; }
.result-inventory table { margin-top: 10px; font-size: .86rem; }
.result-table { margin-bottom: 14px; }

/* ------------------------- fit check + visualizer ------------------------- */
.tool-section { background: var(--bg-warm); }
.fit-check { display: grid; gap: 22px; grid-template-columns: minmax(0, 1fr) minmax(260px, .7fr); }
@media (max-width: 860px) { .fit-check { grid-template-columns: 1fr; } }
.fit-items { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.fit-items li { display: flex; align-items: center; gap: 12px; max-width: none; padding: 5px 0; border-bottom: 1px solid var(--rule-soft); }
.fit-items label { flex: 1; font-size: .92rem; }
.fit-items input { width: 70px; text-align: center; font-family: var(--mono); }
.fit-items .muted, .muted { color: var(--ink-faint); font-size: .85rem; }
.fit-form fieldset { border: 0; padding: 0; margin: 0; }
.fit-result { border: 1px solid var(--rule); border-radius: var(--radius); padding: 16px; background: #fff; height: fit-content; }
.fit-bar { height: 10px; border-radius: 999px; background: var(--navy-100); overflow: hidden; margin: 10px 0; }
.fit-bar span { display: block; height: 100%; background: var(--accent); transition: width .18s; }
.fit-bar span.tight { background: var(--amber); }
.fit-bar span.over { background: var(--red); }

.visualizer { display: grid; gap: 24px; grid-template-columns: minmax(280px, .8fr) minmax(0, 1.2fr); }
@media (max-width: 980px) { .visualizer { grid-template-columns: 1fr; } }
.viz-items { border: 0; padding: 0; margin: 14px 0 0; }
.viz-item-list { list-style: none; padding: 0; margin: 0; max-height: 380px; overflow-y: auto; }
.viz-item-list li { display: flex; align-items: center; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--rule-soft); max-width: none; }
.viz-item-list label { flex: 1; font-size: .9rem; }
.viz-stage { border: 1px solid var(--rule); border-radius: var(--radius); padding: 18px; background: #fff; }
.viz-plan svg { max-width: 100%; height: auto; }
.viz-readout { display: block; margin: 12px 0; font-size: .95rem; }
.viz-table { font-size: .88rem; }

.comparison-tool { display: block; }
.cmp-controls { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.cmp-stage { display: flex; gap: 26px; flex-wrap: wrap; justify-content: center; margin: 18px 0; }
.cmp-plan { margin: 0; text-align: center; }
.cmp-plan figcaption { font-size: .82rem; color: var(--ink-faint); max-width: 26ch; margin: 6px auto 0; }
.cmp-readout { display: block; padding: 14px 18px; background: var(--navy-050); border-radius: var(--radius); font-size: .96rem; margin-bottom: 18px; }
.cmp-table th:first-child { width: 34%; }

.cost-mini { max-width: 720px; }
.cost-mini .cost-form { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.cost-out output { display: block; padding: 14px 16px; background: var(--accent-light); border-radius: var(--radius); font-size: .96rem; }
.cost-output { display: block; }
[data-cost-calc] { grid-template-columns: minmax(0, 1fr) minmax(300px, .8fr); }
[data-cost-calc] .cost-form { display: grid; gap: 14px; }
[data-volume-calc] { grid-template-columns: minmax(0, 1.3fr) minmax(300px, .7fr); grid-template-areas: "custom result" "catalog result"; }
[data-volume-calc] .vol-custom { grid-area: custom; }
[data-volume-calc] .vol-catalog { grid-area: catalog; }
[data-volume-calc] .calc-result { grid-area: result; }
@media (max-width: 980px) { [data-volume-calc] { grid-template-columns: 1fr; grid-template-areas: "custom" "catalog" "result"; } }
.vol-form { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); align-items: end; }
[data-box-calc] { grid-template-columns: minmax(0, 1fr) minmax(300px, .9fr); }

/* --------------------------------- sitemap -------------------------------- */
.sitemap-list { columns: 2; column-gap: 32px; list-style: none; padding: 0; }
.sitemap-list li { break-inside: avoid; margin-bottom: .4em; max-width: none; }
@media (max-width: 640px) { .sitemap-list { columns: 1; } }

/* -------------------------------- footer ---------------------------------- */
.site-footer { background: var(--navy-900); color: #c6dced; padding: 40px 0 26px; margin-top: 0; }
.related-entities + .site-footer { margin-top: 0; }
.footer-grid { display: grid; gap: 22px 20px; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
@media (min-width: 1140px) { .footer-grid { grid-template-columns: repeat(7, 1fr); } }
.footer-col { max-width: none; }
.footer-title { color: #fff; font-size: .82rem; text-transform: uppercase; letter-spacing: .06em; margin-bottom: .7em; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: .38em; max-width: none; }
.footer-col a { color: #c6dced; font-size: .84rem; text-decoration: none; }
.footer-col a:hover { color: #fff; text-decoration: underline; }
.footer-legal { margin: 30px 0 0; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .13); font-size: .82rem; color: #9fb6c9; max-width: 92ch; }
.footer-legal a { color: #c6dced; }

/* --------------------------------- printing ------------------------------- */
@media print {
  .site-header, .site-footer, .related-entities, .breadcrumbs, .calc-shell, .result-actions, .nav-toggle { display: none !important; }
  body { font-size: 12pt; }
  .calc { grid-template-columns: 1fr; }
  .result-inner { border: 0; box-shadow: none; background: none; padding: 0; }
  a[href^="/"]::after { content: " (storagefit.com" attr(href) ")"; font-size: .8em; color: #555; }
}

/* ----------------------------- packing planner ---------------------------- */
/* The planner uses buttons for presets where the size calculator uses radios,
   because there is nothing to keep selected — each press replaces the list. */
.preset {
  padding: 10px 14px; min-height: 44px; border: 1px solid var(--rule); border-radius: var(--radius-sm);
  background: #fff; font: inherit; font-size: .92rem; font-weight: 600; color: var(--navy-800); cursor: pointer;
}
.preset:hover { border-color: var(--accent); background: var(--accent-light); color: var(--accent-dark); }
.preset-clear { font-weight: 500; color: var(--ink-faint); }
.planner-form { margin-top: 20px; }
.planner-form .field-check { margin-bottom: 10px; }

.plan-zone { margin: 0 0 18px; }
.plan-zone h3 { display: flex; align-items: center; gap: 9px; font-size: 1rem; margin-bottom: .3em; }
.plan-step {
  display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto;
  width: 24px; height: 24px; border-radius: 50%; background: var(--accent); color: #fff;
  font-size: .8rem; font-weight: 700; font-family: var(--mono);
}
.plan-rule { font-size: .87rem; color: var(--ink-faint); margin-bottom: .6em; }
.plan-zone table { font-size: .86rem; }

/* ------------------------- entity page illustrations ---------------------- */
/* Two drawings side by side: the illustration answers "what does this feel like",
   the scale plan answers "how big is it". Neither replaces the other. */
.entity-hero { display: grid; gap: 26px; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); align-items: center; margin-bottom: 22px; }
.entity-hero-reverse { grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); }
.entity-hero-reverse .entity-art { order: 2; }
.entity-art { margin: 0; text-align: center; }
.entity-art .illus-unit { width: 100%; max-width: 260px; margin-inline: auto; }
.entity-art figcaption { font-size: .8rem; color: var(--ink-faint); margin-top: 10px; max-width: none; }
.entity-facts .floor-plan { margin: 0; }
@media (max-width: 820px) {
  .entity-hero, .entity-hero-reverse { grid-template-columns: 1fr; gap: 18px; }
  .entity-hero-reverse .entity-art { order: 0; }
}

.compare-pair { display: grid; gap: 24px; grid-template-columns: 1fr 1fr; margin: 22px 0; }
.compare-pair figure { margin: 0; text-align: center; }
.compare-tag {
  display: inline-block; font-family: var(--mono); font-size: .82rem; font-weight: 700;
  color: #fff; background: var(--accent); padding: 3px 11px; border-radius: 999px; margin-bottom: 8px;
}
.compare-pair .floor-plan { margin: 6px 0 0; }
.compare-pair figcaption { font-size: .78rem; }
@media (max-width: 640px) { .compare-pair { grid-template-columns: 1fr; } }

/* Section rhythm on entity pages, not just the homepage. */
.page-size .section, .page-what-fits .section, .page-compare .section,
.page-use-case .section, .page-cost .section, .page-guide .section, .page-hub .section { padding: 34px 0; }
.page-hub .section.band-soft { border-top: 0; }

/* ------------------------- responsive overrides --------------------------- */
/* Last in the file on purpose: these must outrank the base rules above, which
   would otherwise win on equal specificity simply by being declared later. */
@media (max-width: 1000px) {
  .site-header .primary-nav,
  .site-header .header-cta { display: none; }
  .site-header .nav-toggle { display: block; }
}

/* On a phone the result panel would otherwise sit below a 110-item list, so the
   answer is never on screen while you are editing the inventory. Pin a compact
   version to the bottom instead — it is the whole point of the tool. */
@media (max-width: 980px) {
  /* Move the answer above the form. A pinned panel was tried and rejected: it ate
     half the viewport permanently while the user was editing the very list that
     feeds it. Reading order beats pinning here. */
  .page-tool .calc { display: flex; flex-direction: column; }
  .page-tool .calc-result { order: -1; position: static; margin-bottom: 20px; }
  .page-tool .result-inner { max-height: none; }
  .page-tool .result-inventory { display: none; }
}

/* Nothing may force the page wider than the viewport on a small phone. */
@media (max-width: 520px) {
  .card-grid { grid-template-columns: 1fr; }
  .wrap { padding-inline: 16px; }
  h1 { font-size: 1.75rem; }
  .answer-summary { font-size: 1.05rem; }
  .item { flex-wrap: wrap; }
  .item-name { flex: 1 1 100%; }
}

h1, h2, h3, .result-size, .card-title { overflow-wrap: break-word; }
img, svg, table, pre { max-width: 100%; }
.calc, .calc-main, .calc-shell, .viz-stage, .result-inner, .card a { min-width: 0; }