/* 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; } }

/* ==========================================================================
   Turner HVAC Studio — turnerhvac.xyz
   Calm and plain-spoken: cream paper, earth brown, turquoise, a serif voice.
   01 Tokens · 02 Base · 03 Header · 04 Contact card · 05 Buttons · 06 Hero
   07 Page heads · 08 Sections · 09 Quote (signature) · 10 FAQ
   11 Form & contact · 12 Footer · 13 Images
   ========================================================================== */

/* 01 Tokens */
:root {
  --paper: #f7f3ea; --paper-2: #efe8d9; --white: #fffdf8; --brown: #3b2a20; --brown-2: #5a4232;
  --turq: #1d8a8a; --turq-ink: #146b6b; --turq-soft: #dff0ee; --clay: #b86b4b;
  --ink: #2a1f18; --text: #4a3e35; --muted: #6e6257; --line: #ddd2bf;
  --focus: #146b6b; --err: #a8261e; --ok: #2c6b3f;
  --serif: "Merriweather", Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --f-sm: 0.94rem; --f0: clamp(1rem, 0.97rem + 0.16vw, 1.08rem); --f1: clamp(1.2rem, 1.1rem + 0.45vw, 1.5rem);
  --f2: clamp(1.8rem, 1.4rem + 1.6vw, 2.7rem); --f3: clamp(2.3rem, 1.6rem + 3vw, 4.2rem);
  --wrap: 1120px; --pad-y: clamp(3.4rem, 2.4rem + 4.2vw, 6.4rem); --r: 6px;
}

/* 02 Base */
body { background: var(--paper); 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); line-height: 1.22; text-wrap: balance; }
h1 { font-size: var(--f3); font-weight: 700; letter-spacing: -0.015em; }
h2 { font-size: var(--f2); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: var(--f1); font-weight: 700; }
p { margin: 0 0 1em; max-width: 64ch; }
p:last-child { margin-bottom: 0; }
a { color: var(--turq-ink); 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; }
.wrap { width: min(100% - 2rem, var(--wrap)); margin-inline: auto; }
.note { display: block; margin-bottom: 0.8rem; font-family: var(--serif); font-style: italic; font-size: 1.05rem; color: var(--turq-ink); }

/* 03 Header */
.hd { position: sticky; top: 0; z-index: 30; background: var(--paper); border-bottom: 1px solid var(--line); }
.hd .wrap { position: relative; display: flex; align-items: center; gap: 1rem; min-height: 76px; }
.tn-logo { display: inline-flex; align-items: baseline; gap: 0.5rem; color: var(--ink); text-decoration: none; }
.tn-logo b { font-family: var(--serif); font-size: 1.6rem; font-weight: 900; letter-spacing: -0.02em; }
.tn-logo span { font-family: var(--serif); font-style: italic; color: var(--turq-ink); font-size: 1rem; }
.tnav { display: none; }
.hd__end { display: flex; align-items: center; gap: 1rem; margin-left: auto; }
.hd .hd__tel, .hd .hd__cta { display: none; }
.hd__tel { color: var(--ink); font-weight: 700; text-decoration: none; white-space: nowrap; }
.nav-toggle { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.5rem 0.9rem; border: 1px solid var(--brown); border-radius: 999px; background: transparent; color: var(--ink); font: inherit; font-weight: 600; cursor: pointer; }
.nav-toggle svg { width: 18px; height: 18px; }
@media (max-width: 979px) {
  .tnav { position: absolute; top: 100%; left: -1rem; right: -1rem; flex-direction: column; padding: 0.6rem 1.2rem 1.4rem; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 20px 30px -24px rgba(42,31,24,0.45); }
  .tnav.is-open { display: flex; }
  .tnav a { padding: 0.8rem 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none; font-family: var(--serif); font-size: 1.3rem; }
  .tnav a[aria-current="page"] { color: var(--turq-ink); font-style: italic; }
}
@media (min-width: 980px) {
  .nav-toggle { display: none; }
  .hd .hd__tel { display: inline; }
  .hd .hd__cta { display: inline-flex; }
  .tnav { display: flex; gap: 1.6rem; margin-inline: auto; }
  .tnav a { color: var(--text); text-decoration: none; font-weight: 500; }
  .tnav a:hover { color: var(--ink); }
  .tnav a[aria-current="page"] { color: var(--ink); font-family: var(--serif); font-style: italic; font-weight: 700; }
}

/* 04 Contact card (under 980px): floating bottom-left */
.ccard { position: fixed; left: 12px; bottom: 12px; z-index: 40; display: grid; grid-template-columns: auto auto; align-items: center; gap: 0.2rem 0.9rem; padding: 0.65rem 0.7rem 0.65rem 1rem; border-radius: 14px; background: var(--white); border: 1px solid var(--line); box-shadow: 0 16px 30px -14px rgba(42,31,24,0.55); }
.ccard small { grid-column: 1; font-family: var(--serif); font-style: italic; color: var(--muted); font-size: 0.82rem; line-height: 1; }
.ccard .cc-tel { grid-column: 1; color: var(--ink); font-weight: 800; text-decoration: none; white-space: nowrap; line-height: 1.2; }
.ccard .cc-btn { grid-column: 2; grid-row: 1 / span 2; }
@media (min-width: 980px) { .ccard { display: none; } }
@media (max-width: 979px) { .ft { padding-bottom: 90px; } }

/* 05 Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.8rem 1.3rem; border: 1px solid transparent; border-radius: 999px; font: inherit; font-weight: 700; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color 0.2s, color 0.2s, border-color 0.2s; }
.btn svg { width: 1em; height: 1em; }
.btn--turq { background: var(--turq-ink); color: #fff; }
.btn--turq:hover { background: var(--brown); color: #fff; }
.btn--line { border-color: var(--brown); color: var(--ink); background: transparent; }
.btn--line:hover { background: var(--brown); color: #fff; }
.btn--sm { padding: 0.55rem 1rem; font-size: 0.92rem; }
.btns { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.6rem; }

/* 06 Hero */
.hero { padding-block: clamp(3rem, 2.2rem + 4vw, 6rem) clamp(2rem, 1.6rem + 2vw, 3.4rem); }
.hero h1 { max-width: 20ch; }
.hero h1 em { font-style: italic; color: var(--turq-ink); background: linear-gradient(transparent 70%, var(--turq-soft) 70%); }
.hero p.lede { font-size: var(--f1); line-height: 1.55; max-width: 44ch; }
.mosaic { display: grid; gap: 0.8rem; grid-template-columns: 1fr 1fr; margin-top: clamp(2rem, 1.5rem + 2vw, 3rem); }
.mosaic figure:first-child { grid-column: 1 / -1; }
@media (min-width: 860px) { .mosaic { grid-template-columns: 2fr 1fr; grid-template-rows: auto auto; } .mosaic figure:first-child { grid-column: 1; grid-row: 1 / span 2; } }
.mosaic img, .mosaic .img-placeholder { width: 100%; height: 100%; object-fit: cover; }

/* 07 Page heads */
.phead { padding-block: clamp(2.6rem, 2rem + 3vw, 4.8rem) clamp(1.6rem, 1.2rem + 2vw, 2.8rem); border-bottom: 1px solid var(--line); }
.phead h1 { font-size: clamp(2.1rem, 1.6rem + 2.4vw, 3.5rem); max-width: 22ch; }
.phead p { font-size: 1.15rem; max-width: 56ch; }
.crumbs { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 1rem; padding: 0; list-style: none; font-size: 0.88rem; color: var(--muted); }
.crumbs li + li::before { content: "·"; margin-right: 0.5rem; }

/* 08 Sections */
.sec { padding-block: var(--pad-y); }
.sec--white { background: var(--white); }
.sec--brown { background: var(--brown); color: #e9ddcf; }
.sec--brown h2, .sec--brown h3 { color: #fff; }
.sec--brown .note { color: #9fd9d4; }
.sec--brown a:not(.btn) { color: #9fd9d4; }
.sec--brown .btn--line { border-color: #e9ddcf; color: #fff; }
.sec--brown :focus-visible { outline-color: #9fd9d4; }
.asks { display: grid; gap: 1.4rem; }
@media (min-width: 860px) { .asks { grid-template-columns: 1fr 1fr; gap: 2.4rem; } }
.ask { position: relative; padding: 2.2rem 1.8rem 1.8rem; border-radius: var(--r); background: var(--white); border: 1px solid var(--line); }
.ask::before { content: "“"; position: absolute; left: 1.2rem; top: -1.6rem; font-family: var(--serif); font-size: 5rem; line-height: 1; color: var(--turq); }
.ask h2 { font-size: clamp(1.4rem, 1.2rem + 0.9vw, 1.9rem); font-style: italic; }
.ask ul { margin: 1rem 0 1.4rem; padding: 0; list-style: none; }
.ask li { padding: 0.45rem 0; border-top: 1px solid var(--line); }
.ask li::before { content: "— "; color: var(--turq-ink); }
.twocol { display: grid; gap: 2.4rem; align-items: start; }
@media (min-width: 900px) { .twocol { grid-template-columns: 1fr 1fr; } .twocol--mid { align-items: center; } }
.twocol > * { min-width: 0; }
.prose ul { padding-left: 1.2rem; }
.prose li { margin: 0.4rem 0; }
.prose li::marker { color: var(--turq-ink); }
.steps { margin: 0; padding: 0; list-style: none; counter-reset: s; display: grid; gap: 1.2rem; }
@media (min-width: 860px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { counter-increment: s; margin: 0; }
.steps li::before { content: counter(s, upper-roman) "."; display: block; margin-bottom: 0.3rem; font-family: var(--serif); font-size: 1.8rem; font-style: italic; color: #9fd9d4; }
.steps h3 { font-size: 1.15rem; }
.steps p { margin: 0; font-size: var(--f-sm); }
.map { display: block; width: 100%; height: clamp(300px, 36vw, 420px); border: 1px solid var(--line); border-radius: var(--r); background: var(--paper-2); filter: sepia(0.2); }
.area-list { columns: 2; margin: 1rem 0 0; padding: 0; list-style: none; font-family: var(--serif); font-size: 1.1rem; }
.area-list li { padding: 0.2rem 0; }

/* 09 Quote (signature) */
.doc { position: relative; padding: clamp(1.4rem, 1rem + 2vw, 2.4rem); background: #fff; border: 1px solid var(--line); box-shadow: 0 30px 40px -34px rgba(42,31,24,0.6); font-size: var(--f-sm); }
.doc::before { content: "SAMPLE"; position: absolute; right: 1.2rem; top: 1rem; padding: 0.2rem 0.6rem; border: 2px solid var(--clay); color: var(--clay); font-weight: 800; letter-spacing: 0.2em; font-size: 0.78rem; transform: rotate(4deg); }
.doc h3 { font-family: var(--sans); font-size: 1rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.doc ol { margin: 0; padding: 0; list-style: none; counter-reset: q; }
.doc li { position: relative; display: grid; grid-template-columns: 2rem 1fr; gap: 0.7rem; padding: 0.8rem 0; border-top: 1px dashed var(--line); counter-increment: q; }
.doc li::before { content: counter(q); display: grid; place-items: center; width: 1.7rem; height: 1.7rem; border-radius: 50%; background: var(--turq-ink); color: #fff; font-weight: 800; font-size: 0.85rem; }
.doc li b { display: block; }
.doc .blank { display: inline-block; min-width: 6ch; border-bottom: 1px solid var(--muted); color: transparent; }
.checker { padding: clamp(1.4rem, 1rem + 2vw, 2.4rem); border-radius: var(--r); background: var(--white); border: 1px solid var(--line); }
.checker fieldset { margin: 0; padding: 0; border: 0; }
.checker legend { margin-bottom: 0.8rem; font-family: var(--serif); font-size: 1.2rem; font-weight: 700; color: var(--ink); }
.checker label { display: flex; gap: 0.7rem; padding: 0.55rem 0; border-top: 1px solid var(--line); cursor: pointer; }
.checker input { width: 1.1rem; height: 1.1rem; margin-top: 0.3rem; flex: none; accent-color: var(--turq-ink); }
.verdict { margin-top: 1.2rem; padding: 1.1rem 1.2rem; border-radius: var(--r); background: var(--turq-soft); color: var(--ink); }
.verdict[hidden] { display: none; }
.verdict b { display: block; font-family: var(--serif); font-size: 1.2rem; }
.verdict ul { margin: 0.5rem 0 0; padding-left: 1.1rem; }

/* 10 FAQ */
.faq { max-width: 820px; }
.tq { border-top: 1px solid var(--line); }
.tq:last-child { border-bottom: 1px solid var(--line); }
.tq summary { display: flex; justify-content: space-between; gap: 1rem; padding: 1.2rem 0; font-family: var(--serif); font-size: 1.12rem; font-weight: 700; color: var(--ink); cursor: pointer; list-style: none; }
.tq summary::after { content: "+"; flex: none; font-family: var(--serif); font-size: 1.5rem; line-height: 1; color: var(--turq-ink); }
.tq[open] summary::after { content: "–"; }
.tq > div { padding: 0 0 1.2rem; }

/* 11 Form & contact */
.form { display: grid; gap: 1rem 1.2rem; 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: 0.95rem; }
.req { color: var(--clay); }
.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(--white); border: 1px solid #c9bca6; 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='%23146b6b' 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: 16px; padding-right: 2.4rem; }
textarea { min-height: 140px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--turq-ink); }
.picks { margin: 0; padding: 0; border: 0; display: grid; gap: 0.4rem; }
.picks legend { margin-bottom: 0.4rem; }
.pick { display: flex; align-items: center; gap: 0.6rem; cursor: pointer; }
.pick input { accent-color: var(--turq-ink); }
.form-status { margin: 0.8rem 0 0; }
.form-note { margin: 0.5rem 0 0; font-size: 0.86rem; color: var(--muted); }
.letterhead { padding: clamp(1.4rem, 1rem + 2vw, 2.4rem); border-left: 4px solid var(--turq); background: var(--white); }
.letterhead .big { display: block; margin: 0.2rem 0 0.8rem; font-family: var(--serif); font-size: clamp(1.8rem, 1.4rem + 1.4vw, 2.4rem); font-weight: 900; color: var(--ink); text-decoration: none; }
.letterhead p { font-size: var(--f-sm); }

/* 12 Footer */
.ft { border-top: 1px solid var(--line); background: var(--paper-2); font-size: var(--f-sm); }
.ft .wrap { display: grid; gap: 1.6rem; padding-block: 2.8rem 1.6rem; }
@media (min-width: 820px) { .ft .wrap { grid-template-columns: 2fr 1fr 1fr; } }
.ft__name { margin: 0 0 0.4rem; font-family: var(--serif); font-size: 1.6rem; font-weight: 900; color: var(--ink); }
.ft__name span { font-style: italic; font-weight: 400; color: var(--turq-ink); font-size: 1.1rem; }
.ft h2 { font-family: var(--sans); font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.ft ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.35rem; }
.ft__base { grid-column: 1 / -1; padding-top: 1rem; border-top: 1px solid var(--line); font-size: 0.84rem; color: var(--muted); }
.ft__base p { margin: 0; max-width: none; }

/* 13 Images */
.img-placeholder { background: var(--paper-2); border: 1px dashed #c9bca6; color: var(--muted); }
.img-placeholder b { color: var(--ink); }
figure img, figure .img-placeholder { border-radius: var(--r); }
figcaption { margin-top: 0.5rem; font-family: var(--serif); font-style: italic; font-size: 0.9rem; color: var(--muted); }
.mt { margin-top: 2rem; }
.doc h3 { padding-right: 6.5rem; }