/* 00  Core — resets and behaviour hooks only. Every visual decision for this
       site lives in the sections below, starting with the design tokens.    */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; }
img, svg, iframe, video { display: block; max-width: 100%; }
img { height: auto; }
iframe { border: 0; }
figure { margin: 0; }
[hidden] { display: none !important; }
:where(a, button, input, select, textarea, summary, [tabindex]):focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.skip-link { position: absolute; left: 0.5rem; top: 0.5rem; z-index: 999; transform: translateY(-160%); padding: 0.8rem 1.2rem; background: #000; color: #fff; font-weight: 700; text-decoration: none; }
.skip-link:focus { transform: none; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.nav-toggle .icon-close, .nav-toggle[aria-expanded="true"] .icon-open { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }
summary { cursor: pointer; }
summary::-webkit-details-marker { display: none; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field { display: flex; flex-direction: column; gap: 0.3rem; min-width: 0; }
.field__error { margin: 0; min-height: 1rem; font-size: 0.82rem; font-weight: 700; color: var(--err); }
.field.is-invalid :where(input, select, textarea) { border-color: var(--err); }
.form-status { min-height: 1.2rem; font-weight: 700; }
.form-status.is-error { color: var(--err); }
.form-status.is-ok { color: var(--ok); }
.img-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.25rem; width: 100%; padding: 1rem; text-align: center; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; line-height: 1.5; }
.img-placeholder b { display: block; font-size: 0.92rem; letter-spacing: 0; text-transform: none; word-break: break-all; }
:target { scroll-margin-top: 120px; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; } }

/* ==========================================================================
   Beacon Hill HVAC Experts — hvacbeaconhill.xyz
   THE DEVICE: the poster band. Every section is a full-bleed colour field with
   a single narrow centred column inside it. Headings and leads are centred and
   large; running prose is left-aligned inside the same column so it stays
   readable. No cards, no sidebars, no margins — the rhythm is colour on colour.
   01 Tokens · 02 Base · 03 Header · 04 Contact band · 05 Buttons
   06 Bands · 07 Page heads · 08 Band furniture · 09 Lists & tables
   10 Noises (signature) · 11 FAQ · 12 Form & contact · 13 Footer · 14 Images
   ========================================================================== */

/* 01 Tokens */
:root {
  --paper: #fdfcfa; --grey: #e4e5e7; --white: #ffffff;
  --ink: #101012; --ink-2: #2b2c31; --ink-l: #c8c9cc;
  --sig: #f2c12e; --sig-d: #8a6404; --sig-l: #fdf4d9;
  --text: #4a4b52; --muted: #74757d; --line: #d3d4d7;
  --focus: #8a6404; --err: #a32b1c;
  --disp: "Eczar", Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-sm: 0.93rem; --f-xs: 0.78rem; --f0: clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  --f1: clamp(1.12rem, 1.02rem + 0.48vw, 1.32rem);
  --f2: clamp(1.5rem, 1.18rem + 1.6vw, 2.35rem); --f3: clamp(1.95rem, 1.45rem + 2.5vw, 3.2rem);
  --r: 3px; --col: 56ch; --hd: 56px;
  --pad-y: clamp(2.8rem, 2.2rem + 3.2vw, 4.6rem);
}
@media (min-width: 900px) { :root { --hd: 66px; } }

/* 02 Base */
body { background: var(--paper); color: var(--text); font-family: var(--sans); font-size: var(--f0); line-height: 1.74; }
h1, h2, h3 { margin: 0 0 0.5em; font-family: var(--disp); color: var(--ink); font-weight: 600; line-height: 1.2; text-wrap: balance; }
h1 { font-size: var(--f3); }
h2 { font-size: var(--f2); }
h3 { font-size: var(--f1); }
p { margin: 0 0 0.95em; }
p:last-child { margin-bottom: 0; }
a { color: var(--sig-d); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
strong, b { color: var(--ink); font-weight: 700; }
ul, ol { margin: 0 0 1em; padding-left: 1.2em; }
li { margin-bottom: 0.4rem; }
.wrap { width: min(100% - 2rem, 1140px); margin-inline: auto; }
.tag { display: block; margin-bottom: 0.55rem; font-family: var(--sans); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.2em; text-transform: uppercase; color: var(--sig-d); }
.mt { margin-top: 1.6rem; }

/* 03 Header */
.hd { position: sticky; top: 0; z-index: 40; background: var(--ink); }
.hd__bar .wrap { display: flex; align-items: center; gap: 0.6rem; min-height: var(--hd); }
.bh-logo { display: inline-flex; align-items: center; gap: 0.55rem; margin-right: auto; color: #fff; text-decoration: none; }
.bh-logo svg { width: 26px; height: 26px; flex: none; }
.bh-logo b { display: block; font-family: var(--disp); font-size: 1.08rem; font-weight: 600; line-height: 1.12; color: #fff; }
.bh-logo small { display: block; font-size: 0.5rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: var(--sig); }
.nav-toggle { display: inline-flex; align-items: center; justify-content: center; flex: none; width: 38px; height: 38px; padding: 0; border: 1px solid rgba(255,255,255,0.3); border-radius: var(--r); background: transparent; color: #fff; cursor: pointer; }
.nav-toggle svg { width: 18px; height: 18px; }
.bhnav { display: none; }
@media (max-width: 899px) {
  .hd__bar .btn { display: none; }
  .bhnav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 0.3rem 1rem 1.1rem; background: var(--ink); }
  .bhnav.is-open { display: flex; }
  .bhnav a { padding: 0.78rem 0.2rem; border-bottom: 1px solid rgba(255,255,255,0.2); color: #fff; font-family: var(--disp); font-size: 1.08rem; font-weight: 600; text-decoration: none; }
  .bhnav a[aria-current="page"] { color: var(--sig); }
  .bhnav :focus-visible { outline-color: var(--sig); }
}
@media (max-width: 400px) { .bh-logo small { display: none; } }
@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .bhnav { display: flex; gap: 1.5rem; }
  .bhnav a { padding: 0.25rem 0; color: #a5a6ac; font-family: var(--disp); font-size: 1rem; font-weight: 600; text-decoration: none; border-bottom: 2px solid transparent; white-space: nowrap; }
  .bhnav a:hover { color: #fff; }
  .bhnav a[aria-current="page"] { color: #fff; border-bottom-color: var(--sig); }
  .bhnav :focus-visible { outline-color: var(--sig); }
}

/* 04 Contact band — phones only; the device applied to the furniture */
.cband { display: flex; background: var(--sig); text-align: center; }
.cband a { flex: 1 1 0; min-width: 0; display: block; padding: 0.44rem 0.6rem; color: var(--ink); font-family: var(--disp); font-size: 1.02rem; font-weight: 600; text-decoration: none; white-space: nowrap; }
.cband a + a { border-left: 1px solid rgba(16,16,18,0.28); }
.cband .k { display: block; font-family: var(--sans); font-size: 0.58rem; font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase; color: #6b5205; }
@media (min-width: 900px) { .cband { display: none; } }

/* 05 Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.66rem 1.35rem; border: 0; border-radius: var(--r); background: var(--sig); color: var(--ink); font-family: var(--disp); font-size: 1rem; font-weight: 600; line-height: 1.4; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color 0.18s, color 0.18s; }
.btn:hover { background: #dcab1c; color: var(--ink); }
.btn svg { width: 1.05em; height: 1.05em; flex: none; }
.btn--ink { background: var(--ink); color: #fff; }
.btn--ink:hover { background: #000; color: #fff; }
.btn--line { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); }
.btn--line:hover { background: var(--ink); color: #fff; }
.btn--paper, .band--ink a.btn--paper, .nz__out a.btn--paper { background: var(--paper); color: var(--ink); }
.btn--paper:hover, .band--ink a.btn--paper:hover, .nz__out a.btn--paper:hover { background: #fff; color: var(--ink); }
@media (max-width: 460px) { .btn { white-space: normal; text-align: center; } }
.btns { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.6rem; margin-top: 1.4rem; }
.btns--left { justify-content: flex-start; }

/* 06 Bands — the device */
.band { padding-block: var(--pad-y); }
.band__in { width: min(100% - 2rem, var(--col)); margin-inline: auto; text-align: center; }
.band__in .left { text-align: left; }
.band__in .lede { font-size: var(--f1); line-height: 1.62; }
.band--paper { background: var(--paper); }
.band--white { background: var(--white); }
.band--grey { background: var(--grey); }
.band--sig { background: var(--sig); color: #3b2d02; }
.band--sig h1, .band--sig h2, .band--sig h3, .band--sig b { color: var(--ink); }
.band--sig .tag { color: #6b5205; }
.band--sig a:not(.btn) { color: var(--ink); }
.band--ink { background: var(--ink); color: #a5a6ac; }
.band--ink h1, .band--ink h2, .band--ink h3, .band--ink b { color: #fff; }
.band--ink .tag { color: var(--sig); }
.band--ink a:not(.btn) { color: #fff; }
.band--ink :focus-visible { outline-color: var(--sig); }
.band--hero { padding-block: clamp(3rem, 2.3rem + 3.6vw, 5.2rem); }
.band--hero h1 { margin-bottom: 0.4em; }
.rule { width: 3.5rem; height: 5px; margin: 0 auto 1.3rem; background: var(--sig); }
.band--sig .rule { background: var(--ink); }
.band--ink .rule { background: var(--sig); }

/* 07 Page heads */
.crumbs { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.45rem; margin: 0 0 0.9rem; padding: 0; list-style: none; font-size: 0.76rem; font-weight: 700; }
.crumbs li + li::before { content: "\2022"; margin-right: 0.45rem; color: var(--muted); }
.band--ink .crumbs li + li::before { color: #6e6f76; }

/* 08 Band furniture */
.wide { width: min(100% - 2rem, 1140px); margin-inline: auto; }
.figwide img, .figwide .img-placeholder { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.figbox img, .figbox .img-placeholder { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.map { display: block; width: 100%; height: clamp(300px, 34vw, 380px); background: var(--grey); }
.trio { display: grid; gap: 1.6rem; margin-top: 2rem; text-align: left; }
@media (min-width: 860px) { .trio { grid-template-columns: repeat(3, 1fr); gap: 2rem; } }
.trio > * { min-width: 0; }
.trio h3 { padding-top: 0.8rem; border-top: 4px solid var(--ink); }
.band--ink .trio h3 { border-top-color: var(--sig); }
.band--sig .trio h3 { border-top-color: var(--ink); }
.duo { display: grid; gap: 1.6rem; margin-top: 2rem; text-align: left; }
@media (min-width: 800px) { .duo { grid-template-columns: repeat(2, 1fr); gap: 2.2rem; } }
.duo > * { min-width: 0; }
.duo h3 { padding-top: 0.8rem; border-top: 4px solid var(--ink); }
.band--ink .duo h3 { border-top-color: var(--sig); }
.statement { font-family: var(--disp); font-size: clamp(1.25rem, 1.05rem + 1vw, 1.75rem); font-weight: 600; line-height: 1.35; color: var(--ink); }
.band--ink .statement { color: #fff; }

/* 09 Lists & tables */
.tbl { width: 100%; border-collapse: collapse; margin-top: 1.2rem; font-size: var(--f-sm); text-align: left; }
.tbl th, .tbl td { padding: 0.66rem 0.7rem; vertical-align: top; border-bottom: 1px solid var(--line); }
.tbl th { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.tbl td:first-child { font-weight: 700; color: var(--ink); }
.band--ink .tbl th, .band--ink .tbl td { border-bottom-color: #34353a; }
.band--ink .tbl td:first-child { color: #fff; }
.scroll { overflow-x: auto; }

/* 10 Noises (signature) */
.nz { display: grid; gap: 1.6rem; text-align: left; }
@media (min-width: 1000px) { .nz { grid-template-columns: 0.85fr 1.15fr; gap: 2.4rem; align-items: start; } .nz__set { position: sticky; top: calc(var(--hd) + 1rem); } }
.nz__set { padding: 1.25rem 1.3rem 1.4rem; background: var(--white); border: 1px solid var(--line); border-top: 5px solid var(--ink); border-radius: var(--r); }
.nz__set fieldset { margin: 0; padding: 0; border: 0; }
.nz__set legend { display: block; margin-bottom: 0.7rem; padding: 0; font-family: var(--disp); font-size: 1.2rem; font-weight: 600; color: var(--ink); }
.opts { display: grid; gap: 0.3rem; }
.opts label { position: relative; display: block; }
.opts input { position: absolute; opacity: 0; }
.opts span { display: block; padding: 0.52rem 0.78rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--paper); font-size: var(--f-sm); cursor: pointer; }
.opts input:checked + span { background: var(--ink); border-color: var(--ink); color: #fff; }
.opts input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.nz__out { min-width: 0; }
.nz__case h2 { font-size: var(--f2); margin-bottom: 0.15rem; }
.nz__act { display: inline-block; margin-bottom: 1rem; padding: 0.22rem 0.7rem; border-radius: var(--r); background: var(--grey); font-family: var(--sans); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); }
.nz__act--stop { background: var(--ink); color: var(--sig); }
.nz__act--soon { background: var(--sig); color: var(--ink); }
.nz__row { padding: 0.95rem 0 1rem; border-top: 2px solid var(--ink); }
.nz__lab { display: block; margin-bottom: 0.25rem; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--sig-d); }
.nz__row p { font-size: var(--f-sm); }
.nz__note { margin-top: 1.4rem; padding: 1.05rem 1.2rem; background: var(--ink); color: #a5a6ac; border-radius: var(--r); font-size: var(--f-sm); }
.nz__note b { display: block; margin-bottom: 0.2rem; color: #fff; }
.nz__alarm { padding: 1.1rem 1.25rem; margin-bottom: 1.5rem; background: var(--ink); color: #d6d7db; border-left: 6px solid var(--sig); border-radius: var(--r); text-align: left; }
.nz__alarm b { display: block; margin-bottom: 0.2rem; color: #fff; }
.nz__alarm a { color: #fff; }

/* 11 FAQ */
.faq { display: grid; gap: 0; margin-top: 1.4rem; text-align: left; border-top: 3px solid var(--ink); }
.bhq { border-bottom: 1px solid var(--line); }
.bhq summary { display: flex; justify-content: space-between; gap: 1rem; padding: 0.95rem 0; font-family: var(--disp); font-weight: 600; font-size: 1.08rem; line-height: 1.42; color: var(--ink); list-style: none; cursor: pointer; }
.bhq summary::after { content: "+"; flex: none; font-family: var(--sans); color: var(--sig-d); }
.bhq[open] summary::after { content: "\2013"; }
.bhq > div { padding: 0 0 1.1rem; }

/* 12 Form & contact */
.form { display: grid; gap: 1rem 1.3rem; margin-top: 1.2rem; text-align: left; }
@media (min-width: 640px) { .form--2col { grid-template-columns: 1fr 1fr; } }
.field--full, .form__end { grid-column: 1 / -1; }
.field label, .picks legend { font-weight: 700; color: var(--ink); font-size: 0.94rem; }
.req { color: var(--err); }
.opt { font-weight: 400; color: var(--muted); }
input[type="text"], input[type="tel"], input[type="email"], input[type="number"], select, textarea { width: 100%; padding: 0.72rem 0.9rem; font: inherit; color: var(--ink); background: var(--white); border: 1px solid #b3b4b8; border-radius: var(--r); }
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23101012' stroke-width='2.6'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.85rem center; background-size: 15px; padding-right: 2.3rem; }
textarea { min-height: 140px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--ink); }
.picks { margin: 0; padding: 0; border: 0; display: flex; flex-direction: row; flex-wrap: wrap; gap: 0.4rem; }
.picks legend { margin-bottom: 0.45rem; padding: 0; }
.pick { position: relative; }
.pick input { position: absolute; opacity: 0; }
.pick span { display: inline-block; padding: 0.42rem 0.9rem; border: 1px solid #b3b4b8; border-radius: var(--r); background: var(--white); font-size: var(--f-sm); cursor: pointer; }
.pick input:checked + span { background: var(--ink); border-color: var(--ink); color: #fff; }
.pick input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.form-note { margin: 0.5rem 0 0; font-size: 0.84rem; color: var(--muted); }
.contact { display: grid; gap: 1.5rem; align-items: start; text-align: left; }
@media (min-width: 920px) { .contact { grid-template-columns: 1.1fr 0.9fr; gap: 2.4rem; } }
.contact > * { min-width: 0; }
.side { display: grid; gap: 1.2rem; }
.side__card { padding-top: 0.8rem; border-top: 4px solid var(--ink); }
.side__card h2 { font-size: 1.04rem; margin-bottom: 0.15rem; }
.side__card .big { display: block; margin: 0.05rem 0 0.3rem; font-family: var(--disp); font-size: 1.3rem; font-weight: 600; color: var(--ink); text-decoration: none; }

/* 13 Footer */
.ft { background: var(--ink); color: #85868d; font-size: var(--f-sm); }
.ft a { color: #fff; }
.ft :focus-visible { outline-color: var(--sig); }
.ft__row { display: grid; gap: 1.5rem; padding-block: 2.8rem 1.6rem; }
@media (min-width: 820px) { .ft__row { grid-template-columns: 1.5fr 1fr 1fr; } }
.ft__name { margin: 0 0 0.45rem; font-family: var(--disp); font-size: 1.1rem; font-weight: 600; color: #fff; }
.ft h2 { margin: 0 0 0.55rem; font-family: var(--sans); font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--sig); }
.ft ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.32rem; }
.ft__base { padding-block: 0.9rem; border-top: 1px solid rgba(255,255,255,0.15); font-size: 0.8rem; }

/* 14 Images */
.img-placeholder { background: var(--grey); border: 1px dashed #aeafb2; color: var(--muted); }
.img-placeholder b { color: var(--ink); overflow-wrap: anywhere; }