/* 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; } }

/* ==========================================================================
   Harbor Crest HVAC Building Works — hvacharborcrest.xyz
   THE DEVICE: the building elevation. Content is organised as levels — each
   section carries a vertical floor rail on its left edge and stacks under the
   one above it, so a page reads top-down like a section drawing through a
   building. The signature page turns the same device into the tool.
   01 Tokens · 02 Base · 03 Header · 04 Contact level · 05 Buttons
   06 Hero · 07 Page heads · 08 Levels · 09 Blocks
   10 Elevation (signature) · 11 FAQ · 12 Form & contact · 13 Footer · 14 Images
   ========================================================================== */

/* 01 Tokens */
:root {
  --paper: #f6f3ee; --band: #ebe5db; --white: #ffffff;
  --ink: #2e2620; --ink-2: #4a3f36; --ink-l: #d6cec3;
  --teal: #1f7a6b; --teal-d: #155a4e; --teal-l: #dceee9;
  --text: #4f463e; --muted: #7b7268; --line: #ddd5c9;
  --focus: #155a4e; --err: #9c3b2c;
  --disp: "Podkova", Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-sm: 0.92rem; --f-xs: 0.78rem; --f0: clamp(1rem, 0.96rem + 0.2vw, 1.07rem);
  --f1: clamp(1.1rem, 1.01rem + 0.44vw, 1.28rem);
  --f2: clamp(1.4rem, 1.18rem + 1.1vw, 1.95rem); --f3: clamp(1.8rem, 1.4rem + 2vw, 2.8rem);
  --r: 2px; --wrap: 1140px; --hd: 56px; --rail: 2.6rem;
  --pad-y: clamp(2.2rem, 1.8rem + 2.4vw, 3.4rem);
}
@media (min-width: 900px) { :root { --hd: 66px; --rail: 3.4rem; } }

/* 02 Base */
body { background: var(--paper); color: var(--text); font-family: var(--sans); font-size: var(--f0); line-height: 1.72; }
h1, h2, h3 { margin: 0 0 0.5em; font-family: var(--disp); color: var(--ink); font-weight: 600; line-height: 1.24; text-wrap: balance; }
h1 { font-size: var(--f3); }
h2 { font-size: var(--f2); }
h3 { font-size: var(--f1); }
p { margin: 0 0 0.95em; max-width: 64ch; }
p:last-child { margin-bottom: 0; }
a { color: var(--teal-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: 0.35rem; }
.wrap { width: min(100% - 2rem, var(--wrap)); margin-inline: auto; }
.tagline { display: block; margin-bottom: 0.45rem; font-family: var(--sans); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.17em; text-transform: uppercase; color: var(--teal-d); }
.mt { margin-top: 1.5rem; }

/* 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); }
.hc-logo { display: inline-flex; align-items: center; gap: 0.55rem; margin-right: auto; color: #fff; text-decoration: none; }
.hc-logo svg { width: 25px; height: 25px; flex: none; }
.hc-logo b { display: block; font-family: var(--disp); font-size: 1.06rem; font-weight: 600; line-height: 1.15; color: #fff; }
.hc-logo small { display: block; font-size: 0.5rem; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: #8dc7bb; }
.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; }
.hcnav { display: none; }
@media (max-width: 899px) {
  .hd__bar .btn { display: none; }
  .hcnav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 0.3rem 1rem 1.1rem; background: var(--ink); }
  .hcnav.is-open { display: flex; }
  .hcnav a { padding: 0.78rem 0.2rem; border-bottom: 1px solid rgba(255,255,255,0.2); color: #fff; font-family: var(--disp); font-size: 1.06rem; font-weight: 600; text-decoration: none; }
  .hcnav a[aria-current="page"] { color: #8dc7bb; }
  .hcnav :focus-visible { outline-color: #8dc7bb; }
}
@media (max-width: 400px) { .hc-logo small { display: none; } }
@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .hcnav { display: flex; gap: 1.5rem; }
  .hcnav a { padding: 0.25rem 0; color: #b3a99e; font-family: var(--disp); font-size: 1rem; font-weight: 600; text-decoration: none; border-bottom: 2px solid transparent; white-space: nowrap; }
  .hcnav a:hover { color: #fff; }
  .hcnav a[aria-current="page"] { color: #fff; border-bottom-color: var(--teal); }
  .hcnav :focus-visible { outline-color: #8dc7bb; }
}

/* 04 Contact level — phones only; the device applied to the furniture */
.clevel { display: grid; grid-template-columns: var(--rail) 1fr 1fr; background: var(--white); border-bottom: 3px solid var(--ink); }
.clevel__rail { display: flex; align-items: center; justify-content: center; background: var(--teal); color: #fff; font-family: var(--disp); font-size: 0.68rem; font-weight: 600; letter-spacing: 0.04em; }
.clevel a { display: block; padding: 0.42rem 0.7rem; color: var(--ink); font-family: var(--disp); font-size: 1rem; font-weight: 600; text-decoration: none; white-space: nowrap; }
.clevel a + a { border-left: 1px solid var(--line); }
.clevel .k { display: block; font-family: var(--sans); font-size: 0.58rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--teal-d); }
@media (min-width: 900px) { .clevel { display: none; } }

/* 05 Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.6rem 1.2rem; border: 0; border-radius: var(--r); background: var(--teal); color: #fff; font-family: var(--disp); font-size: 0.99rem; font-weight: 600; line-height: 1.42; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color 0.18s, color 0.18s; }
.btn:hover { background: var(--teal-d); color: #fff; }
.btn svg { width: 1.05em; height: 1.05em; flex: none; }
.btn--ink { background: var(--ink); color: #fff; }
.btn--ink:hover { background: #17120e; 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, .lvl--ink a.btn--paper, .sec--ink a.btn--paper, .ev__out a.btn--paper { background: var(--paper); color: var(--ink); }
.btn--paper:hover, .lvl--ink a.btn--paper:hover, .sec--ink a.btn--paper:hover, .ev__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; gap: 0.6rem; margin-top: 1.2rem; }

/* 08 Levels — the device */
.lvl { display: grid; grid-template-columns: var(--rail) 1fr; border-top: 3px solid var(--ink); background: var(--paper); }
.lvl:last-of-type { border-bottom: 3px solid var(--ink); }
.lvl__rail { display: flex; align-items: flex-start; justify-content: center; padding-top: 1.4rem; background: var(--band); border-right: 1px solid var(--line); }
.lvl__rail span { writing-mode: vertical-rl; transform: rotate(180deg); font-family: var(--disp); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink); white-space: nowrap; }
.lvl__body { min-width: 0; padding: clamp(1.6rem, 1.3rem + 1.7vw, 2.6rem) clamp(1rem, 0.7rem + 1.6vw, 2.2rem); }
.lvl__body > *:last-child { margin-bottom: 0; }
.lvl--white { background: var(--white); }
.lvl--band { background: var(--band); }
.lvl--band .lvl__rail { background: var(--ink); }
.lvl--band .lvl__rail span { color: #fff; }
.lvl--ink { background: var(--ink); color: #b3a99e; }
.lvl--ink h2, .lvl--ink h3, .lvl--ink b { color: #fff; }
.lvl--ink .tagline { color: #8dc7bb; }
.lvl--ink a:not(.btn) { color: #fff; }
.lvl--ink .lvl__rail { background: var(--teal); border-right-color: var(--teal-d); }
.lvl--ink .lvl__rail span { color: #fff; }
.lvl--ink :focus-visible { outline-color: #8dc7bb; }
.lvl--teal { background: var(--teal-l); }
.lvl--teal .lvl__rail { background: var(--teal); }
.lvl--teal .lvl__rail span { color: #fff; }

/* 06/07 Hero & page heads */
.hero { background: var(--ink); color: #b3a99e; }
.hero .lvl__rail { background: var(--teal); border-right-color: var(--teal-d); }
.hero .lvl__rail span { color: #fff; }
.hero h1 { color: #fff; max-width: 21ch; }
.hero .lede { font-size: var(--f1); line-height: 1.62; color: #ded6cd; max-width: 54ch; }
.hero .tagline { color: #8dc7bb; }
.hero :focus-visible { outline-color: #8dc7bb; }
.phead { background: var(--band); }
.phead .lvl__rail { background: var(--ink); }
.phead .lvl__rail span { color: #fff; }
.phead h1 { max-width: 24ch; }
.phead p { font-size: 1.02rem; max-width: 58ch; }
.crumbs { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0 0 0.8rem; padding: 0; list-style: none; font-family: var(--sans); font-size: 0.76rem; font-weight: 700; }
.crumbs li + li::before { content: "\203a"; margin-right: 0.45rem; color: var(--muted); }

/* 09 Blocks */
.sec { padding-block: var(--pad-y); }
.sec--paper { background: var(--paper); }
.sec--white { background: var(--white); }
.sec--band { background: var(--band); }
.sec--ink { background: var(--ink); color: #b3a99e; }
.sec--ink h2, .sec--ink h3, .sec--ink b { color: #fff; }
.sec--ink .tagline { color: #8dc7bb; }
.sec--ink a:not(.btn) { color: #fff; }
.sec--ink :focus-visible { outline-color: #8dc7bb; }
.head { max-width: 640px; }
.grid { display: grid; gap: 1.1rem; }
@media (min-width: 800px) { .grid--2 { grid-template-columns: repeat(2, 1fr); gap: 1.4rem; } }
@media (min-width: 900px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }
.grid > * { min-width: 0; }
.card { padding: 1.1rem 1.2rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--r); }
.card h3 { margin-bottom: 0.3rem; }
.card--acc { border-left: 4px solid var(--teal); }
.card--ink { background: var(--ink); color: #b3a99e; border-color: var(--ink); }
.card--ink h3, .card--ink b { color: #fff; }
.lvl--white .card, .sec--white .card { background: var(--paper); }
.lvl--ink .card, .sec--ink .card { background: #3b322b; border-color: #4a3f36; }
.lvl--ink .card h3, .sec--ink .card h3 { color: #fff; }
.tbl { width: 100%; border-collapse: collapse; margin-top: 1rem; font-size: var(--f-sm); }
.tbl th, .tbl td { padding: 0.62rem 0.7rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.tbl th { font-family: var(--sans); 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); }
.scroll { overflow-x: auto; }
.figwide img, .figwide .img-placeholder { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--r); }
.figbox img, .figbox .img-placeholder { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--r); }
.map { display: block; width: 100%; height: clamp(300px, 34vw, 380px); background: var(--band); border-radius: var(--r); }
.where { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 880px) { .where { grid-template-columns: 1fr 1fr; gap: 3rem; } }
.twin { display: grid; gap: 1.8rem; }
@media (min-width: 900px) { .twin { grid-template-columns: 1fr 1fr; gap: 2.6rem; } }
.twin > * { min-width: 0; }

/* 10 Elevation (signature) */
.ev { display: grid; gap: 1.5rem; }
@media (min-width: 1000px) { .ev { grid-template-columns: 0.78fr 1.22fr; gap: 2.2rem; align-items: start; } .ev__left { position: sticky; top: calc(var(--hd) + 1rem); } }
.ev__set { padding: 1.2rem 1.25rem 1.35rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--r); }
.ev__set fieldset { margin: 0; padding: 0; border: 0; }
.ev__set legend { display: block; margin-bottom: 0.65rem; padding: 0; font-family: var(--disp); font-size: 1.18rem; font-weight: 600; color: var(--ink); }
.opts { display: grid; gap: 0.32rem; }
.opts label { position: relative; display: block; }
.opts input { position: absolute; opacity: 0; }
.opts span { display: block; padding: 0.5rem 0.75rem; 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; }
.elev { margin-top: 1.2rem; border: 2px solid var(--ink); border-radius: var(--r); overflow: hidden; }
.elev__lv { display: flex; align-items: baseline; gap: 0.6rem; padding: 0.62rem 0.8rem; background: var(--band); border-top: 1px solid var(--ink-l); transition: background-color 0.2s, color 0.2s; }
.elev__lv:first-child { border-top: 0; }
.elev__lv b { flex: none; min-width: 3.4rem; font-family: var(--disp); font-size: 0.82rem; font-weight: 600; color: var(--ink); }
.elev__lv span { font-size: var(--f-xs); color: var(--muted); }
.elev[data-lit~="roof"] [data-lv="roof"], .elev[data-lit~="void"] [data-lv="void"], .elev[data-lit~="suite"] [data-lv="suite"], .elev[data-lit~="below"] [data-lv="below"], .elev[data-lit~="base"] [data-lv="base"] { background: var(--teal); }
.elev[data-lit~="roof"] [data-lv="roof"] b, .elev[data-lit~="void"] [data-lv="void"] b, .elev[data-lit~="suite"] [data-lv="suite"] b, .elev[data-lit~="below"] [data-lv="below"] b, .elev[data-lit~="base"] [data-lv="base"] b { color: #fff; }
.elev[data-lit~="roof"] [data-lv="roof"] span, .elev[data-lit~="void"] [data-lv="void"] span, .elev[data-lit~="suite"] [data-lv="suite"] span, .elev[data-lit~="below"] [data-lv="below"] span, .elev[data-lit~="base"] [data-lv="base"] span { color: #d3ece6; }
.ev__key { margin-top: 0.7rem; font-size: 0.8rem; color: var(--muted); }
.ev__out { min-width: 0; }
.ev__case { }
.ev__case h2 { font-size: var(--f2); }
.ev__lead { padding: 1.1rem 1.2rem; margin-bottom: 1.3rem; background: var(--ink); color: #b3a99e; border-radius: var(--r); }
.ev__lead b { color: #fff; }
.ev__lead p { max-width: none; font-size: var(--f-sm); }
.ev__steps { margin: 0; padding: 0; list-style: none; }
.ev__steps > li { display: grid; gap: 0.2rem 1rem; padding: 0.95rem 0 1rem; border-top: 1px solid var(--line); }
@media (min-width: 620px) { .ev__steps > li { grid-template-columns: 5.5rem 1fr; } }
.ev__at { font-family: var(--disp); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--teal-d); }
.ev__steps h3 { margin-bottom: 0.2rem; font-size: 1.06rem; }
.ev__steps p { font-size: var(--f-sm); }
.ev__who { display: inline-block; margin-top: 0.4rem; padding: 0.1rem 0.5rem; border-radius: var(--r); background: var(--band); font-family: var(--sans); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); }
.ev__who--not { background: #f0ded9; color: #8a3526; }
.ev__note { margin-top: 1.4rem; padding: 1rem 1.15rem; background: var(--white); border-left: 4px solid var(--teal); border-radius: var(--r); font-size: var(--f-sm); }
.ev__note b { display: block; margin-bottom: 0.2rem; }

/* 11 FAQ */
.faq { display: grid; gap: 0.5rem; max-width: 880px; margin-top: 1.2rem; }
.hcq { background: var(--white); border: 1px solid var(--line); border-radius: var(--r); }
.hcq summary { display: flex; justify-content: space-between; gap: 1rem; padding: 0.85rem 1.05rem; font-family: var(--disp); font-weight: 600; font-size: 1.06rem; line-height: 1.45; color: var(--ink); list-style: none; cursor: pointer; }
.hcq summary::after { content: "+"; flex: none; font-family: var(--sans); color: var(--teal-d); }
.hcq[open] { border-left: 4px solid var(--teal); }
.hcq[open] summary::after { content: "\2013"; }
.hcq > div { padding: 0 1.05rem 1.05rem; }

/* 12 Form & contact */
.form { display: grid; gap: 1rem 1.3rem; margin-top: 1.2rem; }
@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 #bdb3a6; 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='%232e2620' 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 #bdb3a6; 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: 1.4rem; align-items: start; }
@media (min-width: 920px) { .contact { grid-template-columns: 1.1fr 0.9fr; gap: 2.4rem; } }
.contact > * { min-width: 0; }
.side { display: grid; gap: 1rem; }
.side__card { padding: 1.05rem 1.15rem; background: var(--white); border: 1px solid var(--line); border-left: 4px solid var(--teal); border-radius: var(--r); }
.side__card h2 { font-size: 1.02rem; margin-bottom: 0.15rem; }
.side__card .big { display: block; margin: 0.05rem 0 0.3rem; font-family: var(--disp); font-size: 1.26rem; font-weight: 600; color: var(--ink); text-decoration: none; }

/* 13 Footer */
.ft { background: var(--ink); color: #9b9188; font-size: var(--f-sm); }
.ft a { color: #fff; }
.ft :focus-visible { outline-color: #8dc7bb; }
.ft__row { display: grid; gap: 1.5rem; padding-block: 2.6rem 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: 0.16em; text-transform: uppercase; color: #8dc7bb; }
.ft ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.32rem; }
.ft p { max-width: none; }
.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(--band); border: 1px dashed #b7ac9d; color: var(--muted); }
.img-placeholder b { color: var(--ink); overflow-wrap: anywhere; }