/* 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; } }

/* ==========================================================================
   Summit HVAC & Brush Works — hvacsummit.xyz
   Snow, ink and summit red; one rounded geometric sans.
   01 Tokens · 02 Base · 03 Header · 04 Peak button (mobile) · 05 Buttons
   06 Hero · 07 Ascent rail (home) · 08 Page heads & sections
   09 Panel check (signature) · 10 FAQ · 11 Form & contact · 12 Footer · 13 Images
   ========================================================================== */

/* 01 Tokens */
:root {
  --red: #a4243b; --red-dark: #7f1a2c; --red-soft: #f8e9ec;
  --snow: #f7f7f5; --white: #ffffff; --sky: #e3eef5; --ink: #1d1f27; --ink-2: #2c2f3a;
  --text: #40434e; --muted: #5e6270; --line: #dfe1e6;
  --focus: #a4243b; --err: #a4243b; --ok: #256b45;
  --font: "Maven Pro", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --f-sm: 0.92rem; --f0: clamp(1rem, 0.97rem + 0.15vw, 1.07rem); --f1: clamp(1.2rem, 1.08rem + 0.5vw, 1.5rem);
  --f2: clamp(1.8rem, 1.4rem + 1.7vw, 2.6rem); --f3: clamp(2.3rem, 1.6rem + 3.2vw, 4.2rem);
  --r: 10px; --wrap: 1140px; --pad-y: clamp(3rem, 2.3rem + 3.6vw, 5.4rem);
}

/* 02 Base */
body { background: var(--white); color: var(--text); font-family: var(--font); font-size: var(--f0); line-height: 1.65; }
h1, h2, h3 { margin: 0 0 0.5em; color: var(--ink); font-weight: 700; line-height: 1.14; text-wrap: balance; }
h1 { font-size: var(--f3); }
h2 { font-size: var(--f2); }
h3 { font-size: var(--f1); font-weight: 600; }
p { margin: 0 0 1em; max-width: 64ch; }
p:last-child { margin-bottom: 0; }
a { color: var(--red); 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; }
.kick { display: block; margin-bottom: 0.7rem; font-size: 0.82rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--red); }
.mt { margin-top: 2rem; }

/* 03 Header — phone number printed at every width */
.hd { position: sticky; top: 0; z-index: 30; background: var(--white); box-shadow: 0 1px 0 var(--line); }
.hd .wrap { display: flex; align-items: center; gap: 0.8rem; min-height: 66px; }
.su-logo { display: inline-flex; align-items: center; gap: 0.55rem; margin-right: auto; color: var(--ink); text-decoration: none; }
.su-logo svg { width: 38px; height: 30px; flex: none; }
.su-logo b { display: block; font-size: 1.3rem; font-weight: 800; letter-spacing: -0.01em; line-height: 1; }
.su-logo small { display: block; margin-top: 0.15rem; font-size: 0.7rem; color: var(--muted); }
.hd__tel { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--ink); font-weight: 700; text-decoration: none; white-space: nowrap; }
.hd__tel svg { width: 17px; height: 17px; color: var(--red); flex: none; }
.nav-toggle { display: inline-grid; place-items: center; flex: none; width: 44px; height: 44px; border: 0; border-radius: var(--r); background: var(--snow); color: var(--ink); cursor: pointer; }
.nav-toggle svg { width: 22px; height: 22px; }
.unav { display: none; }
.hd .hd__book { display: none; }
@media (max-width: 1019px) {
  .unav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; padding: 0.5rem 1rem 1.2rem; background: var(--white); box-shadow: 0 18px 28px -22px rgba(29,31,39,0.5); }
  .unav.is-open { display: flex; }
  .unav a { padding: 0.8rem 0.5rem; border-bottom: 1px solid var(--line); color: var(--ink); font-size: 1.1rem; font-weight: 600; text-decoration: none; }
  .unav a[aria-current="page"] { color: var(--red); }
}
@media (max-width: 400px) { .su-logo small { display: none; } .su-logo svg { width: 32px; } .su-logo b { font-size: 1.15rem; } .hd__tel { font-size: 0.95rem; } .hd .wrap { gap: 0.5rem; } }
@media (min-width: 1020px) {
  .hd .wrap { min-height: 76px; gap: 1.2rem; }
  .su-logo small, .unav a, .hd .btn { white-space: nowrap; }
  .su-logo { margin-right: 0; }
  .nav-toggle { display: none; }
  .unav { display: flex; gap: 0.2rem; margin-right: auto; }
  .unav a { position: relative; padding: 0.5rem 0.65rem; color: var(--text); font-weight: 600; text-decoration: none; }
  .unav a:hover { color: var(--ink); }
  .unav a[aria-current="page"] { color: var(--ink); }
  .unav a[aria-current="page"]::after { content: ""; position: absolute; left: 50%; bottom: -2px; width: 12px; height: 8px; margin-left: -6px; background: var(--red); clip-path: polygon(50% 0, 100% 100%, 0 100%); }
  .hd__tel { font-size: 1.1rem; }
  .hd .hd__book { display: inline-flex; }
}

/* 04 Peak button (mobile) — Book, fixed bottom-right */
.peak { position: fixed; right: 12px; bottom: 12px; z-index: 40; display: flex; align-items: flex-end; justify-content: center; width: 88px; height: 76px; padding-bottom: 12px; background: var(--red); color: #fff; font-weight: 800; font-size: 0.98rem; letter-spacing: 0.02em; text-decoration: none; clip-path: polygon(50% 0, 64% 22%, 72% 14%, 100% 100%, 0 100%); filter: drop-shadow(0 6px 10px rgba(0,0,0,0.3)); }
.peak::before { content: ""; position: absolute; left: 50%; top: 0; width: 24px; height: 18px; margin-left: -12px; background: #fff; clip-path: polygon(50% 0, 100% 100%, 70% 80%, 50% 100%, 30% 80%, 0 100%); }
.peak:hover { background: var(--ink); color: #fff; }
.peak:focus-visible { outline: none; background: var(--ink); box-shadow: inset 0 -5px 0 #fff; }
@media (min-width: 1020px) { .peak { display: none; } }

/* 05 Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.85rem 1.4rem; border: 0; border-radius: var(--r); background: var(--red); color: #fff; font: inherit; font-weight: 700; line-height: 1.25; text-decoration: none; cursor: pointer; transition: background-color 0.2s, color 0.2s; }
.btn:hover { background: var(--ink); color: #fff; }
.btn svg { width: 1.1em; height: 1.1em; flex: none; }
.btn--ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 2px var(--ink); }
.btn--ghost:hover { background: var(--ink); color: #fff; }
.btn--light { background: #fff; color: var(--ink); }
.btn--light:hover { background: var(--sky); color: var(--ink); }
.btns { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.6rem; }

/* 06 Hero — photo behind, ink wash, text left */
.hero { position: relative; display: grid; align-items: end; min-height: clamp(460px, 62vh, 640px); color: #e6e8ee; background: var(--ink); overflow: hidden; }
.hero figure { position: absolute; inset: 0; }
.hero img, .hero .img-placeholder { width: 100%; height: 100%; object-fit: cover; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(29,31,39,0.92) 0%, rgba(29,31,39,0.7) 45%, rgba(29,31,39,0.15) 100%); }
@media (max-width: 760px) { .hero::after { background: linear-gradient(0deg, rgba(29,31,39,0.95) 30%, rgba(29,31,39,0.55) 100%); } }
.hero .wrap { position: relative; z-index: 1; padding-block: clamp(3rem, 2.4rem + 3vw, 5rem); }
.hero h1 { color: #fff; max-width: 15ch; }
.hero p.lede { font-size: var(--f1); line-height: 1.5; max-width: 38ch; }
.hero .kick { color: #ffb3c0; }
.hero :focus-visible { outline-color: #fff; }
.hero .btn--ghost { color: #fff; box-shadow: inset 0 0 0 2px #fff; }
.hero .btn--ghost:hover { background: #fff; color: var(--ink); }
.ridge { display: block; width: 100%; height: 40px; margin-top: -1px; color: var(--white); }

/* 07 Ascent rail — home sections hung on a numbered line */
.ascent { position: relative; padding-block: var(--pad-y); }
.ascent::before { content: ""; position: absolute; top: 0; bottom: 0; left: max(1rem, calc((100% - var(--wrap)) / 2)); width: 2px; background: repeating-linear-gradient(var(--line) 0 8px, transparent 8px 14px); }
.stage { position: relative; padding: 0 0 clamp(3rem, 2.4rem + 3vw, 5rem) 3.2rem; }
.stage:last-child { padding-bottom: 0; }
@media (min-width: 900px) { .stage { padding-left: 6rem; } }
.stage__mark { position: absolute; left: -15px; top: 0; display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: var(--red); color: #fff; font-size: 0.85rem; font-weight: 800; box-shadow: 0 0 0 5px var(--white); }
.stage__row { display: grid; gap: 1.8rem; align-items: start; }
@media (min-width: 900px) { .stage__row { grid-template-columns: 1fr 1fr; gap: 3rem; } }
.stage__row > * { min-width: 0; }
.stage figure img, .stage figure .img-placeholder { width: 100%; aspect-ratio: 10 / 7; object-fit: cover; border-radius: var(--r); }
.checks { margin: 1rem 0 0; padding: 0; list-style: none; display: grid; gap: 0.5rem; }
.checks li { position: relative; padding-left: 1.6rem; }
.checks li::before { content: ""; position: absolute; left: 0; top: 0.35em; width: 12px; height: 10px; background: var(--red); clip-path: polygon(50% 0, 100% 100%, 0 100%); }
.gauge { padding: 1.6rem; border-radius: var(--r); background: var(--sky); }
.gauge h3 { font-size: 1.2rem; }
.gauge dl { display: grid; grid-template-columns: 1fr auto; gap: 0.4rem 1rem; margin: 0.8rem 0 0; font-size: var(--f-sm); }
.gauge dt, .gauge dd { margin: 0; padding-bottom: 0.4rem; border-bottom: 1px solid #c8d8e4; }
.gauge dd { font-weight: 700; color: var(--ink); text-align: right; }
.map { display: block; width: 100%; height: clamp(300px, 34vw, 400px); border-radius: var(--r); background: var(--sky); }

/* 08 Page heads & sections */
.phead { position: relative; padding-block: clamp(2.6rem, 2rem + 3vw, 4.2rem) clamp(3rem, 2.4rem + 3vw, 4.8rem); background: var(--ink); color: #d4d7e0; }
.phead h1 { color: #fff; font-size: clamp(2rem, 1.5rem + 2.4vw, 3.3rem); max-width: 20ch; }
.phead p { font-size: 1.1rem; max-width: 58ch; }
.phead a { color: #fff; }
.phead :focus-visible { outline-color: #fff; }
.phead + .ridge { color: var(--ink); transform: scaleY(-1); margin-top: -1px; }
.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; font-size: 0.6rem; vertical-align: 0.15em; color: #ff8fa3; }
.sec { padding-block: var(--pad-y); }
.sec--snow { background: var(--snow); }
.sec--sky { background: var(--sky); }
.two { display: grid; gap: 2.4rem; align-items: start; }
@media (min-width: 900px) { .two { grid-template-columns: 1.1fr 0.9fr; gap: 3.6rem; } }
.two > * { min-width: 0; }
.two figure img, .two figure .img-placeholder { width: 100%; aspect-ratio: 10 / 7; object-fit: cover; border-radius: var(--r); }
.svc { display: grid; gap: 0.8rem; margin: 0; padding: 0; list-style: none; }
.svc li { padding: 1.1rem 1.2rem; border-radius: var(--r); background: var(--snow); border-left: 4px solid var(--red); }
.svc b { display: block; margin-bottom: 0.15rem; font-size: 1.08rem; }
.callout { margin-top: 1.4rem; padding: 1.4rem 1.5rem; border-radius: var(--r); background: var(--red-soft); }
.callout h2 { font-size: 1.3rem; }

/* 09 Panel check (signature) */
.pc { display: grid; gap: 2rem; align-items: start; }
@media (min-width: 940px) { .pc { grid-template-columns: 1.1fr 0.9fr; gap: 3rem; } }
.pc__form { padding: clamp(1.4rem, 1rem + 1.6vw, 2.2rem); border-radius: var(--r); background: var(--snow); border: 1px solid var(--line); }
.pc fieldset { margin: 0 0 1.6rem; padding: 0; border: 0; }
.pc fieldset:last-child { margin-bottom: 0; }
.pc legend { margin-bottom: 0.7rem; padding: 0; font-size: 1.15rem; font-weight: 700; color: var(--ink); }
.amps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.5rem; }
.chk { position: relative; display: block; }
.chk input { position: absolute; opacity: 0; }
.chk span { display: block; padding: 0.75rem 0.9rem; border-radius: var(--r); background: var(--white); border: 1px solid var(--line); font-weight: 600; color: var(--ink); cursor: pointer; }
.amps .chk span { text-align: center; }
.loads { display: grid; gap: 0.5rem; }
@media (min-width: 560px) { .loads { grid-template-columns: 1fr 1fr; } }
.loads .chk span { padding-left: 2.6rem; position: relative; }
.loads .chk span::before { content: ""; position: absolute; left: 0.9rem; top: 50%; width: 18px; height: 18px; margin-top: -9px; border: 2px solid var(--muted); border-radius: 4px; background: var(--white); }
.chk input:checked + span { border-color: var(--red); background: var(--red-soft); }
.amps .chk input:checked + span { background: var(--red); color: #fff; }
.loads .chk input:checked + span::before { border-color: var(--red); background: var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5 12 5 5 9-10'/%3E%3C/svg%3E") center / 12px no-repeat; }
.chk input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.pc__out { position: sticky; top: 96px; padding: 1.8rem; border-radius: var(--r); background: var(--ink); color: #d4d7e0; }
.pc__out h2 { color: #fff; font-size: 1.25rem; }
.pc__out .verdict { display: block; margin: 0.3rem 0 0.8rem; font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); font-weight: 800; color: #fff; line-height: 1.2; }
.pc__out .meter { height: 10px; margin: 0.4rem 0 1rem; border-radius: 99px; background: #3a3e4c; overflow: hidden; }
.pc__out .meter i { display: block; height: 100%; width: 0; border-radius: 99px; background: #7fd1a4; transition: width 0.3s; }
.pc__out .meter i.is-mid { background: #f2c14e; }
.pc__out .meter i.is-high { background: #ff8fa3; }
.pc__out ul { margin: 0.6rem 0 0; font-size: var(--f-sm); }
.pc__out p { font-size: var(--f-sm); }
.pc__out a { color: #fff; }
.pc__out :focus-visible { outline-color: #fff; }

/* 10 FAQ */
.faq { display: grid; gap: 0.6rem; }
.uq { border-radius: var(--r); background: var(--snow); }
.uq summary { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 1.2rem; font-weight: 700; color: var(--ink); list-style: none; }
.uq summary::after { content: ""; flex: none; width: 14px; height: 10px; margin-top: 0.45em; background: var(--red); clip-path: polygon(50% 0, 100% 100%, 0 100%); transform: rotate(180deg); transition: transform 0.2s; }
.uq[open] summary::after { transform: none; }
.uq > div { padding: 0 1.2rem 1.1rem; }

/* 11 Form & contact */
.form { display: grid; gap: 1.1rem; margin-top: 1.2rem; }
.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(--red); }
.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 #c3c7d0; 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='%23a4243b' 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(--ink); }
.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-radius: 99px; border: 1px solid #c3c7d0; background: var(--white); font-size: var(--f-sm); cursor: pointer; }
.pick input:checked + span { background: var(--red); border-color: var(--red); 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); }
.infos { display: grid; gap: 0.8rem; }
@media (min-width: 760px) { .infos { grid-template-columns: repeat(3, 1fr); } }
.info { padding: 1.3rem 1.4rem; border-radius: var(--r); background: var(--white); box-shadow: 0 10px 26px -18px rgba(29,31,39,0.45); }
.info b { display: block; margin-bottom: 0.2rem; font-size: 0.8rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--red); }
.info .big { color: var(--ink); font-size: 1.45rem; font-weight: 800; text-decoration: none; }
.lift { margin-top: clamp(-3.2rem, -2rem - 2vw, -2rem); position: relative; }
.formcard { display: grid; gap: 2.4rem; margin-top: 2rem; padding: clamp(1.4rem, 1rem + 2vw, 2.6rem); border-radius: var(--r); background: var(--white); border: 1px solid var(--line); }
@media (min-width: 920px) { .formcard { grid-template-columns: 1.2fr 0.8fr; gap: 3rem; } }
.formcard > * { min-width: 0; }
.formcard figure img, .formcard figure .img-placeholder { width: 100%; aspect-ratio: 10 / 7; object-fit: cover; border-radius: var(--r); }

/* 12 Footer */
.ft { background: var(--ink); color: #b9bdc9; font-size: var(--f-sm); }
.ft .ridge { color: var(--ink); background: var(--white); height: 34px; margin: 0; }
.ft a { color: #fff; }
.ft :focus-visible { outline-color: #fff; }
.ft__row { display: grid; gap: 1.6rem; padding-block: 2.6rem 1.6rem; }
@media (min-width: 820px) { .ft__row { grid-template-columns: 1.4fr 1fr 1fr; } }
.ft__name { margin: 0 0 0.5rem; font-size: 1.35rem; font-weight: 800; color: #fff; }
.ft h2 { margin: 0 0 0.6rem; font-size: 0.82rem; letter-spacing: 0.1em; text-transform: uppercase; color: #ff8fa3; }
.ft ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.35rem; }
.ft__base { padding-block: 1rem 6.4rem; border-top: 1px solid rgba(255,255,255,0.12); font-size: 0.82rem; }
@media (min-width: 1020px) { .ft__base { padding-bottom: 1rem; } }

/* 13 Images */
.img-placeholder { background: var(--sky); border: 1px dashed #a6bccb; color: var(--muted); }
.img-placeholder b { color: var(--ink); }
.hero .img-placeholder { background: #3a3e4c; border-color: #5b6072; color: #c9ccd6; }
.hero .img-placeholder b { color: #fff; }
.hero + .ridge { background: var(--ink); }