/* 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; } }

/* ==========================================================================
   EliteBrush HVAC Studio — elitebrushhvac.xyz
   Emerald, ivory and brass; a high-contrast Didone for headings.
   01 Tokens · 02 Base · 03 Utility line & masthead · 04 Buttons · 05 Hero
   06 Page heads · 07 Sections · 08 Ledger · 09 Thermostat plan (signature)
   10 FAQ · 11 Form & contact · 12 Footer · 13 Images
   ========================================================================== */

/* 01 Tokens */
:root {
  --emerald: #14443f; --emerald-2: #1d5a53; --emerald-soft: #e3eeeb;
  --ivory: #faf7f1; --paper: #ffffff; --brass: #8a6634; --brass-light: #d4b27a;
  --ink: #1c2422; --text: #3f4a47; --muted: #5d6865; --line: #e2dccf;
  --focus: #8a6634; --err: #a8261b; --ok: #1f6b3d;
  --serif: "Bodoni Moda", "Didot", "Bodoni 72", Georgia, serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-sm: 0.92rem; --f0: clamp(1rem, 0.97rem + 0.15vw, 1.07rem); --f1: clamp(1.25rem, 1.12rem + 0.5vw, 1.6rem);
  --f2: clamp(1.9rem, 1.45rem + 1.9vw, 2.9rem); --f3: clamp(2.5rem, 1.7rem + 3.6vw, 4.6rem);
  --wrap: 1180px; --pad-y: clamp(3.4rem, 2.4rem + 4.4vw, 6.4rem);
}

/* 02 Base */
body { background: var(--ivory); color: var(--text); font-family: var(--sans); font-size: var(--f0); line-height: 1.7; }
h1, h2, h3 { margin: 0 0 0.5em; font-family: var(--serif); color: var(--ink); font-weight: 500; line-height: 1.12; text-wrap: balance; }
h1 { font-size: var(--f3); font-weight: 600; letter-spacing: -0.01em; }
h2 { font-size: var(--f2); }
h3 { font-size: var(--f1); }
p { margin: 0 0 1em; max-width: 64ch; }
p:last-child { margin-bottom: 0; }
a { color: var(--emerald-2); text-underline-offset: 3px; }
a:hover { color: var(--brass); }
strong, b { color: var(--ink); font-weight: 650; }
ul, ol { margin: 0 0 1em; padding-left: 1.2em; }
.wrap { width: min(100% - 2rem, var(--wrap)); margin-inline: auto; }
.kicker { display: inline-flex; align-items: center; gap: 0.7rem; margin-bottom: 1rem; font-size: 0.8rem; font-weight: 650; letter-spacing: 0.12em; text-transform: uppercase; color: var(--brass); }
.kicker::before { content: ""; width: 28px; height: 1px; background: currentColor; }
.mt { margin-top: 2rem; }

/* 03 Utility line & masthead */
.hd { position: sticky; top: 0; z-index: 30; }
.util { background: var(--emerald); color: #d9e6e3; font-size: 0.88rem; }
.util .wrap { display: flex; align-items: center; justify-content: flex-end; gap: 0.4rem; min-height: 44px; }
.util__loc { display: none; margin: 0 auto 0 0; }
.util a { display: inline-flex; align-items: center; gap: 0.45rem; min-height: 44px; padding: 0 0.7rem; color: #fff; font-weight: 650; text-decoration: none; white-space: nowrap; }
.util svg { width: 15px; height: 15px; flex: none; color: var(--brass-light); }
.util .util__book { background: var(--brass-light); color: var(--ink); padding: 0 1rem; }
.util .util__book:hover { background: #fff; }
.util :focus-visible { outline-color: #fff; outline-offset: -3px; }
@media (min-width: 720px) { .util__loc { display: block; } }
.mast { background: var(--paper); border-bottom: 1px solid var(--line); }
.mast .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 72px; }
.eb-logo { display: inline-flex; align-items: center; gap: 0.7rem; color: var(--ink); text-decoration: none; }
.eb-logo svg { width: 36px; height: 36px; flex: none; }
.eb-logo b { display: block; font-family: var(--serif); font-size: 1.45rem; font-weight: 600; line-height: 1; }
.eb-logo small { display: block; margin-top: 0.25rem; font-size: 0.68rem; font-weight: 650; letter-spacing: 0.2em; text-transform: uppercase; color: var(--brass); }
.nav-toggle { display: inline-flex; align-items: center; gap: 0.45rem; flex: none; min-height: 44px; padding: 0 0.9rem; border: 1px solid var(--line); background: var(--paper); color: var(--ink); font: inherit; font-size: 0.92rem; font-weight: 650; cursor: pointer; }
.nav-toggle svg { width: 18px; height: 18px; }
.enav { display: none; }
@media (max-width: 959px) {
  .enav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 0.4rem 1rem 1.4rem; background: var(--paper); border-bottom: 3px solid var(--emerald); }
  .enav.is-open { display: flex; }
  .enav a { padding: 0.85rem 0.2rem; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 1.35rem; color: var(--ink); text-decoration: none; }
  .enav a[aria-current="page"] { color: var(--brass); }
}
@media (min-width: 960px) {
  .nav-toggle { display: none; }
  .enav { display: flex; gap: 0.3rem; }
  .enav a { padding: 0.55rem 0.9rem; color: var(--text); font-weight: 600; text-decoration: none; }
  .enav a:hover { color: var(--ink); }
  .enav a[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--brass); }
}

/* 04 Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.55rem; padding: 0.95rem 1.5rem; border: 2px solid var(--emerald); background: var(--emerald); color: #fff; font: inherit; font-weight: 650; text-decoration: none; cursor: pointer; transition: background-color 0.2s, border-color 0.2s, color 0.2s; }
.btn:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn svg { width: 1.1em; height: 1.1em; flex: none; }
.btn--line { background: transparent; color: var(--emerald); }
.btn--line:hover { background: var(--emerald); border-color: var(--emerald); }
.btn--brass { background: var(--brass-light); border-color: var(--brass-light); color: var(--ink); }
.btn--brass:hover { background: #fff; border-color: #fff; color: var(--ink); }
.btns { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.8rem; }

/* 05 Hero */
.hero { padding-block: clamp(2.6rem, 2rem + 3vw, 5rem); }
.hero .wrap { display: grid; gap: 2.6rem; align-items: center; }
@media (min-width: 900px) { .hero .wrap { grid-template-columns: 1.15fr 0.85fr; gap: 4rem; } }
.hero p.lede { font-size: var(--f1); line-height: 1.5; color: var(--ink); max-width: 34ch; }
.portrait { position: relative; max-width: 460px; justify-self: center; width: 100%; }
.portrait::before { content: ""; position: absolute; inset: 18px -18px -18px 18px; border: 1px solid var(--brass); }
.portrait img, .portrait .img-placeholder { position: relative; width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
@media (max-width: 520px) { .portrait::before { inset: 12px -10px -12px 10px; } }

/* 06 Page heads */
.phead { padding-block: clamp(2.6rem, 2rem + 3vw, 4.6rem) clamp(2rem, 1.6rem + 2vw, 3rem); background: var(--paper); border-bottom: 1px solid var(--line); }
.phead h1 { font-size: clamp(2.2rem, 1.6rem + 2.6vw, 3.7rem); max-width: 18ch; }
.phead p { font-size: 1.12rem; max-width: 56ch; }
.crumbs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 1.2rem; padding: 0; list-style: none; font-size: 0.86rem; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: 0.5rem; color: var(--brass); }

/* 07 Sections */
.sec { padding-block: var(--pad-y); }
.sec--paper { background: var(--paper); }
.sec--emerald { background: var(--emerald); color: #d3e2de; }
.sec--emerald h2, .sec--emerald h3, .sec--emerald b { color: #fff; }
.sec--emerald .kicker { color: var(--brass-light); }
.sec--emerald a:not(.btn) { color: #fff; }
.sec--emerald :focus-visible { outline-color: #fff; }
.head { max-width: 640px; margin-bottom: 2.6rem; }
.duo { display: grid; gap: 1.6rem; }
@media (min-width: 760px) { .duo { grid-template-columns: 1fr 1fr; gap: 2rem; } }
.duo a { display: block; color: var(--ink); text-decoration: none; }
.duo figure img, .duo .img-placeholder { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.duo figcaption { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 1rem 0 0; border-bottom: 1px solid var(--line); padding-bottom: 0.9rem; }
.duo figcaption b { font-family: var(--serif); font-size: 1.5rem; font-weight: 500; }
.duo figcaption span { font-size: var(--f-sm); color: var(--brass); font-weight: 650; }
.duo a:hover b { color: var(--emerald-2); }
.teaser { display: grid; gap: 2.4rem; align-items: center; }
@media (min-width: 880px) { .teaser { grid-template-columns: 0.9fr 1.1fr; gap: 4rem; } }
.teaser svg { width: 100%; max-width: 440px; height: auto; margin-inline: auto; }
.roman { margin: 0; padding: 0; list-style: none; counter-reset: r; }
.roman li { position: relative; display: grid; gap: 0.2rem; padding: 1.4rem 0 1.4rem 3.6rem; border-bottom: 1px solid var(--line); counter-increment: r; }
.roman li::before { content: counter(r, upper-roman); position: absolute; left: 0; top: 1.35rem; font-family: var(--serif); font-size: 1.5rem; color: var(--brass); }
.roman h3 { margin: 0; font-size: 1.35rem; }
.roman p { margin: 0; }
.split { display: grid; gap: 2.6rem; }
@media (min-width: 900px) { .split { grid-template-columns: 1.2fr 0.8fr; gap: 4rem; align-items: start; } }
.split > * { min-width: 0; }
.split figure img, .split .img-placeholder { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.aside { margin-top: 1.6rem; padding: 1.4rem 1.6rem; border-left: 3px solid var(--brass); background: var(--paper); }
.aside h2 { font-size: 1.4rem; }
.map { display: block; width: 100%; height: clamp(300px, 34vw, 420px); background: var(--emerald-soft); }
.visit { display: grid; gap: 2rem; }
@media (min-width: 880px) { .visit { grid-template-columns: 0.8fr 1.2fr; gap: 3rem; align-items: center; } }

/* 08 Ledger — homes and businesses, side by side */
.ledger { border-top: 2px solid var(--emerald); }
.ledger__head { display: none; }
.lg-row { display: grid; gap: 0.8rem 2rem; padding: 1.5rem 0; border-bottom: 1px solid var(--line); }
.lg-row h3 { margin: 0; font-size: 1.45rem; }
.lg-k { display: block; margin-bottom: 0.2rem; font-size: 0.74rem; font-weight: 650; letter-spacing: 0.14em; text-transform: uppercase; color: var(--brass); }
.lg-row p { margin: 0; }
@media (min-width: 820px) {
  .ledger__head, .lg-row { grid-template-columns: 0.6fr 1fr 1fr; }
  .ledger__head { display: grid; gap: 2rem; padding: 0.8rem 0; border-bottom: 1px solid var(--line); font-size: 0.8rem; font-weight: 650; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
  .lg-k { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
}

/* 09 Thermostat plan (signature) */
.planbox { display: grid; gap: 2rem; align-items: start; }
@media (min-width: 940px) { .planbox { grid-template-columns: 1.25fr 0.75fr; gap: 3rem; } }
.plan { position: relative; background: var(--paper); border: 1px solid var(--line); }
.plan svg { width: 100%; height: auto; }
.spot { position: absolute; display: grid; place-items: center; width: 34px; height: 34px; margin: -17px 0 0 -17px; border: 2px solid var(--paper); border-radius: 50%; background: var(--emerald); color: #fff; font: inherit; font-size: 0.9rem; font-weight: 700; cursor: pointer; box-shadow: 0 2px 6px rgba(20,68,63,0.35); }
.spot:hover { background: var(--ink); }
.s1 { left: 50%; top: 40%; } .s2 { left: 23.3%; top: 7%; } .s3 { left: 85%; top: 7%; } .s4 { left: 50%; top: 82%; }
.s5 { left: 76.7%; top: 90%; } .s6 { left: 7%; top: 31%; } .s7 { left: 25%; top: 59%; }
@media (max-width: 520px) { .spot { width: 30px; height: 30px; margin: -15px 0 0 -15px; font-size: 0.82rem; } }
.spot[aria-pressed="true"] { background: var(--brass-light); color: var(--ink); border-color: var(--ink); }
.plan-hint { margin: 0.8rem 0 0; font-size: var(--f-sm); color: var(--muted); }
.verdict { padding: 1.6rem; border-top: 4px solid var(--emerald); background: var(--paper); }
.verdict--good { border-top-color: var(--ok); }
.verdict--poor { border-top-color: var(--err); }
.verdict--fair { border-top-color: var(--brass); }
.verdict h3 { font-size: 1.4rem; }
.tag { display: inline-block; margin-bottom: 0.5rem; padding: 0.2rem 0.6rem; font-size: 0.76rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #fff; background: var(--muted); }
.tag--good { background: var(--ok); }
.tag--poor { background: var(--err); }
.tag--fair { background: var(--brass); }
.spots { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
@media (min-width: 760px) { .spots { grid-template-columns: 1fr 1fr; column-gap: 2.4rem; } }
.spots li { padding: 1.3rem 0; border-bottom: 1px solid var(--line); }
.spots h3 { font-size: 1.2rem; margin-bottom: 0.3rem; }
.spots p { margin: 0; font-size: var(--f-sm); }
.spots li.is-on h3 { color: var(--emerald-2); }

/* 10 FAQ */
.faq { display: grid; gap: 0 3rem; }
@media (min-width: 820px) { .faq { grid-template-columns: 1fr 1fr; } }
.eq { padding: 1.4rem 0; border-top: 1px solid var(--line); }
.eq h3 { font-size: 1.25rem; margin-bottom: 0.4rem; }

/* 11 Form & contact */
.form { display: grid; gap: 1.1rem 1.4rem; 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: 650; color: var(--ink); font-size: 0.95rem; }
.req { color: var(--err); }
.opt { font-weight: 400; color: var(--muted); }
input[type="text"], input[type="tel"], input[type="email"], select, textarea { width: 100%; padding: 0.8rem 0.95rem; font: inherit; color: var(--ink); background: var(--paper); border: 1px solid #c8c0b0; border-radius: 0; }
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='%2314443f' stroke-width='2.4'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.9rem center; background-size: 15px; padding-right: 2.4rem; }
textarea { min-height: 140px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--emerald); }
.picks { margin: 0; padding: 0; border: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.picks legend { margin-bottom: 0.5rem; padding: 0; }
.pick { position: relative; }
.pick input { position: absolute; opacity: 0; }
.pick span { display: inline-block; padding: 0.5rem 0.9rem; border: 1px solid #c8c0b0; background: var(--paper); font-size: var(--f-sm); cursor: pointer; }
.pick input:checked + span { background: var(--emerald); border-color: var(--emerald); color: #fff; }
.pick input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.form-note { margin: 0.5rem 0 0; font-size: 0.85rem; color: var(--muted); }
.letter { display: grid; gap: 2.6rem; }
@media (min-width: 920px) { .letter { grid-template-columns: 0.75fr 1.25fr; gap: 4rem; } }
.letter > * { min-width: 0; }
.letterhead { padding-top: 1.4rem; border-top: 4px solid var(--brass); }
.letterhead .big { display: block; margin: 0.2rem 0 1.2rem; font-family: var(--serif); font-size: clamp(1.9rem, 1.5rem + 1.6vw, 2.6rem); font-weight: 600; color: var(--ink); text-decoration: none; }
.letterhead dl { margin: 0; }
.letterhead dt { margin-top: 1.1rem; font-size: 0.74rem; font-weight: 650; letter-spacing: 0.14em; text-transform: uppercase; color: var(--brass); }
.letterhead dd { margin: 0.2rem 0 0; }
.sheet { padding: clamp(1.4rem, 1rem + 2vw, 2.6rem); background: var(--paper); border: 1px solid var(--line); }
.sheet h2 { font-size: clamp(1.6rem, 1.3rem + 1.2vw, 2.2rem); }

/* 12 Footer */
.ft { background: var(--emerald); color: #c9dbd6; font-size: var(--f-sm); }
.ft a { color: #fff; }
.ft__top { display: grid; gap: 2rem; padding-block: 3.6rem 2.4rem; }
@media (min-width: 820px) { .ft__top { grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.ft__mark { margin: 0 0 0.6rem; font-family: var(--serif); font-size: 2.2rem; font-weight: 600; color: #fff; line-height: 1; }
.ft h2 { margin: 0 0 0.7rem; font-family: var(--sans); font-size: 0.76rem; font-weight: 650; letter-spacing: 0.14em; text-transform: uppercase; color: var(--brass-light); }
.ft ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.4rem; }
.ft :focus-visible { outline-color: #fff; }
.ft__base { padding-block: 1.2rem; border-top: 1px solid rgba(255,255,255,0.18); font-size: 0.82rem; }

/* 13 Images */
.img-placeholder { background: var(--emerald-soft); border: 1px dashed #9fbab4; color: var(--muted); }
.img-placeholder b { color: var(--ink); }