/* 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; } }

/* ==========================================================================
   Franklin Wall HVAC Professionals — franklinprofhvac.xyz
   Oat, deep spruce and copper; a quiet serif over a plain sans.
   01 Tokens · 02 Base · 03 Stacked header · 04 Buttons · 05 Hero
   06 Page heads · 07 Sections · 08 Heater inventory (signature)
   09 FAQ · 10 Form & contact · 11 Footer · 12 Images
   ========================================================================== */

/* 01 Tokens */
:root {
  --spruce: #1f3d3a; --spruce-dark: #152b29; --spruce-soft: #e3ece9;
  --copper: #9b5b2a; --copper-dark: #7c4720; --copper-soft: #f6e9dd;
  --oat: #f5f2ea; --oat-2: #ebe6da; --white: #ffffff;
  --ink: #20262a; --text: #434a4d; --muted: #616a6d; --line: #ded8ca;
  --focus: #7c4720; --err: #a02b20; --ok: #1f5d40;
  --serif: "Alice", "Iowan Old Style", 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(1.18rem, 1.06rem + 0.5vw, 1.45rem);
  --f2: clamp(1.75rem, 1.35rem + 1.7vw, 2.55rem); --f3: clamp(2.15rem, 1.5rem + 2.9vw, 3.7rem);
  --r: 5px; --wrap: 1120px; --pad-y: clamp(3.2rem, 2.4rem + 4vw, 5.8rem);
}

/* 02 Base */
body { background: var(--oat); 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: 400; 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 1em; max-width: 64ch; }
p:last-child { margin-bottom: 0; }
a { color: var(--copper-dark); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
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; }
.label { display: block; margin-bottom: 0.8rem; font-size: 0.79rem; font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase; color: var(--copper-dark); }
.mt { margin-top: 2rem; }

/* 03 Stacked header — the number sits under the name at every width */
.hd { position: sticky; top: 0; z-index: 30; background: var(--oat); border-bottom: 2px solid var(--spruce); }
.hd .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 78px; }
.fw-brand { display: grid; gap: 0.25rem; }
.fw-logo { display: inline-flex; align-items: center; gap: 0.55rem; color: var(--ink); text-decoration: none; }
.fw-logo svg { width: 32px; height: 32px; flex: none; }
.fw-logo b { display: block; font-family: var(--serif); font-size: 1.3rem; font-weight: 400; line-height: 1; }
.fw-logo small { display: block; margin-top: 0.15rem; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.fw-tel { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--spruce); font-weight: 700; font-size: 1.02rem; text-decoration: none; }
.fw-tel svg { width: 16px; height: 16px; flex: none; color: var(--copper); }
.nav-toggle { display: inline-flex; align-items: center; gap: 0.4rem; flex: none; min-height: 44px; padding: 0 0.9rem; border: 2px solid var(--spruce); border-radius: var(--r); background: transparent; color: var(--spruce); font: inherit; font-weight: 700; cursor: pointer; }
.nav-toggle svg { width: 19px; height: 19px; }
.fnav { display: none; }
.hd .hd__cta { display: none; }
@media (max-width: 1019px) {
  .fnav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 0.4rem 1rem 1.2rem; background: var(--oat); border-bottom: 3px solid var(--copper); }
  .fnav.is-open { display: flex; }
  .fnav a { padding: 0.8rem 0.3rem; border-bottom: 1px solid var(--line); color: var(--ink); font-family: var(--serif); font-size: 1.15rem; text-decoration: none; }
  .fnav a[aria-current="page"] { color: var(--copper-dark); }
}
@media (max-width: 400px) { .fw-logo small { display: none; } .fw-logo b { font-size: 1.15rem; } .fw-tel { font-size: 0.95rem; } }
@media (min-width: 1020px) {
  .hd .wrap { min-height: 92px; gap: 1.6rem; }
  .nav-toggle { display: none; }
  .fnav { display: flex; gap: 1.5rem; margin-left: auto; }
  .fnav a { padding: 0.3rem 0; color: var(--text); font-weight: 600; text-decoration: none; border-bottom: 2px solid transparent; }
  .fnav a:hover { color: var(--ink); }
  .fnav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--copper); }
  .hd .hd__cta { display: inline-flex; }
}

/* 04 Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.85rem 1.45rem; border: 0; border-radius: var(--r); background: var(--spruce); color: #fff; font: inherit; font-weight: 650; line-height: 1.3; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color 0.2s, color 0.2s; }
.btn:hover { background: var(--spruce-dark); color: #fff; }
.btn svg { width: 1.1em; height: 1.1em; flex: none; }
.btn--copper { background: var(--copper-dark); }
.btn--copper:hover { background: var(--ink); }
.btn--line { background: transparent; color: var(--spruce); box-shadow: inset 0 0 0 2px var(--spruce); }
.btn--line:hover { background: var(--spruce); color: #fff; }
.btn--oat { background: var(--oat); color: var(--ink); }
.btn--oat:hover { background: #fff; color: var(--ink); }
.btns { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.6rem; }

/* 05 Hero */
.hero { padding-block: clamp(2.8rem, 2.2rem + 3vw, 4.6rem) var(--pad-y); }
.hero .wrap { display: grid; gap: 2.4rem; align-items: center; }
@media (min-width: 940px) { .hero .wrap { grid-template-columns: 0.95fr 1.05fr; gap: 3.4rem; } .hero figure { order: -1; } }
.hero p.lede { font-size: var(--f1); line-height: 1.5; color: var(--ink); max-width: 40ch; }
.hero img, .hero .img-placeholder { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; border-radius: var(--r); }
.hero__note { margin-top: 1.6rem; padding: 1rem 1.2rem; background: var(--copper-soft); border-radius: var(--r); font-size: var(--f-sm); }
.hero__note b { display: block; font-family: var(--serif); font-size: 1.05rem; }

/* 06 Page heads */
.phead { padding-block: clamp(2.6rem, 2rem + 3vw, 4.2rem); background: var(--spruce); color: #cfdcd8; }
.phead h1 { color: #fff; font-size: clamp(2rem, 1.5rem + 2.2vw, 3.2rem); max-width: 20ch; }
.phead p { font-size: 1.08rem; max-width: 58ch; }
.phead a { color: #fff; }
.phead .label { color: #e6b98f; }
.phead :focus-visible { outline-color: #e6b98f; }
.crumbs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 1rem; padding: 0; list-style: none; font-size: 0.86rem; }
.crumbs li + li::before { content: "·"; margin-right: 0.5rem; color: #e6b98f; }

/* 07 Sections */
.sec { padding-block: var(--pad-y); }
.sec--white { background: var(--white); }
.sec--oat { background: var(--oat-2); }
.sec--spruce { background: var(--spruce); color: #cfdcd8; }
.sec--spruce h2, .sec--spruce h3, .sec--spruce b { color: #fff; }
.sec--spruce .label { color: #e6b98f; }
.sec--spruce a:not(.btn) { color: #fff; }
.sec--spruce :focus-visible { outline-color: #e6b98f; }
.head { max-width: 640px; margin-bottom: 2.4rem; }
.two { display: grid; gap: 2.4rem; align-items: center; }
@media (min-width: 900px) { .two { grid-template-columns: 1fr 1fr; gap: 3.4rem; } .two--flip > :first-child { order: 2; } }
.two > * { min-width: 0; }
.two img, .two .img-placeholder { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--r); }
.rows { margin: 0; padding: 0; list-style: none; }
.rows li { display: grid; gap: 0.2rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.rows b { font-family: var(--serif); font-size: 1.1rem; font-weight: 400; }
.rows span { font-size: var(--f-sm); }
.cols { display: grid; gap: 1.2rem; }
@media (min-width: 760px) { .cols { grid-template-columns: repeat(3, 1fr); } }
.cols article { padding: 1.5rem; background: var(--white); border-radius: var(--r); border-top: 4px solid var(--spruce); }
.cols article:nth-child(2) { border-top-color: var(--copper); }
.cols h3 { font-size: 1.15rem; }
.cols p { margin: 0; font-size: var(--f-sm); }
.map { display: block; width: 100%; height: clamp(300px, 34vw, 420px); border-radius: var(--r); background: var(--spruce-soft); }
.where { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 880px) { .where { grid-template-columns: 0.85fr 1.15fr; gap: 3rem; } }

/* 08 Heater inventory (signature) */
.inv { display: grid; gap: 2rem; align-items: start; }
@media (min-width: 940px) { .inv { grid-template-columns: 1.05fr 0.95fr; gap: 3rem; } }
.inv__form { padding: clamp(1.4rem, 1rem + 2vw, 2.2rem); background: var(--white); border: 1px solid var(--line); border-radius: var(--r); }
.inv__rows { display: grid; gap: 0.8rem; }
.inv__row { display: grid; grid-template-columns: 1fr 7.5rem; gap: 0.8rem; align-items: center; padding-bottom: 0.8rem; border-bottom: 1px solid var(--line); }
.inv__row label { font-weight: 650; color: var(--ink); }
.inv__row small { display: block; font-weight: 400; font-size: var(--f-sm); color: var(--muted); }
.inv__total { margin-top: 1.4rem; padding-top: 1rem; border-top: 2px solid var(--spruce); display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.inv__total b { font-family: var(--serif); font-size: 1.8rem; font-weight: 400; color: var(--ink); }
.readout { padding: clamp(1.4rem, 1rem + 2vw, 2.2rem); background: var(--spruce); color: #cfdcd8; border-radius: var(--r); }
.readout h2 { color: #fff; font-size: 1.35rem; }
.readout .line { display: block; margin: 0.5rem 0; font-family: var(--serif); font-size: clamp(1.4rem, 1.2rem + 1vw, 1.9rem); color: #e6b98f; }
.readout ul { margin: 1rem 0 0; padding-left: 1.2em; font-size: var(--f-sm); }
.readout li { margin-bottom: 0.4rem; }
.readout :focus-visible { outline-color: #e6b98f; }
.compare { display: grid; gap: 1rem; margin: 0; padding: 0; list-style: none; }
@media (min-width: 760px) { .compare { grid-template-columns: 1fr 1fr; } }
.compare li { padding: 1.4rem; background: var(--oat-2); border-radius: var(--r); }
.compare b { display: block; font-family: var(--serif); font-size: 1.15rem; margin-bottom: 0.2rem; }
.compare span { font-size: var(--f-sm); }

/* 09 FAQ */
.faq { display: grid; gap: 0; max-width: 860px; border-top: 1px solid var(--line); }
.fq { border-bottom: 1px solid var(--line); }
.fq summary { display: flex; justify-content: space-between; gap: 1rem; padding: 1.05rem 0; font-family: var(--serif); font-size: 1.1rem; color: var(--ink); list-style: none; }
.fq summary::after { content: "+"; flex: none; font-family: var(--sans); font-weight: 700; color: var(--copper-dark); }
.fq[open] summary::after { content: "–"; }
.fq > div { padding: 0 0 1.1rem; }

/* 10 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"], input[type="number"], select, textarea { width: 100%; padding: 0.8rem 0.95rem; font: inherit; color: var(--ink); background: var(--white); border: 1px solid #c6bfae; 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='%231f3d3a' stroke-width='2.6'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.9rem center; background-size: 15px; padding-right: 2.4rem; }
textarea { min-height: 140px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--spruce); }
.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 #c6bfae; border-radius: var(--r); background: var(--white); font-size: var(--f-sm); cursor: pointer; }
.pick input:checked + span { background: var(--spruce); border-color: var(--spruce); 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); }
.contact { display: grid; gap: 2.4rem; align-items: start; }
@media (min-width: 920px) { .contact { grid-template-columns: 0.85fr 1.15fr; gap: 3.2rem; } }
.contact > * { min-width: 0; }
.card { padding: 1.8rem; background: var(--white); border: 1px solid var(--line); border-radius: var(--r); }
.card h2 { font-size: 1.2rem; }
.card .big { display: block; margin: 0.2rem 0 1rem; font-family: var(--serif); font-size: clamp(1.5rem, 1.3rem + 1vw, 2rem); color: var(--ink); text-decoration: none; }
.card dl { margin: 0; }
.card dt { margin-top: 1rem; font-size: 0.77rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--copper-dark); }
.card dd { margin: 0.15rem 0 0; }

/* 11 Footer */
.ft { background: var(--spruce-dark); color: #c2d0cc; font-size: var(--f-sm); }
.ft a { color: #fff; }
.ft :focus-visible { outline-color: #e6b98f; }
.ft__row { display: grid; gap: 1.6rem; padding-block: 3rem 1.8rem; }
@media (min-width: 820px) { .ft__row { grid-template-columns: 1.5fr 1fr 1fr; } }
.ft__name { margin: 0 0 0.5rem; font-family: var(--serif); font-size: 1.35rem; color: #fff; }
.ft h2 { margin: 0 0 0.6rem; font-family: var(--sans); font-size: 0.79rem; letter-spacing: 0.13em; text-transform: uppercase; color: #e6b98f; }
.ft ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.35rem; }
.ft__base { padding-block: 1rem; border-top: 1px solid rgba(255,255,255,0.14); font-size: 0.82rem; }

/* 12 Images */
.img-placeholder { background: var(--spruce-soft); border: 1px dashed #a7bdb7; border-radius: var(--r); color: var(--muted); }
.img-placeholder b { color: var(--ink); }