/* 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; } }

/* ==========================================================================
   Ortega HVAC Solutions — ortegahvac.xyz
   Charcoal, aqua and white; one geometric sans.
   01 Tokens · 02 Base · 03 Header (phone + Book inline) · 04 Buttons
   05 Hero & symptom card · 06 Page heads · 07 Sections
   08 Cycle timer (signature) · 09 FAQ · 10 Form & contact · 11 Footer · 12 Images
   ========================================================================== */

/* 01 Tokens */
:root {
  --char: #23262a; --char-2: #32373d; --slate: #f1f3f4;
  --aqua: #0f8f8f; --aqua-dark: #0b6f6f; --aqua-soft: #e2f4f3;
  --white: #ffffff; --ink: #14171a; --text: #3d454b; --muted: #5b646b; --line: #dfe3e5;
  --focus: #0b6f6f; --err: #b3261e; --ok: #0b6f6f;
  --font: "Alexandria", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --f-sm: 0.9rem; --f0: clamp(0.98rem, 0.95rem + 0.15vw, 1.05rem); --f1: clamp(1.15rem, 1.05rem + 0.45vw, 1.4rem);
  --f2: clamp(1.7rem, 1.35rem + 1.6vw, 2.5rem); --f3: clamp(2.1rem, 1.5rem + 2.8vw, 3.6rem);
  --r: 12px; --wrap: 1160px; --pad-y: clamp(3.2rem, 2.4rem + 4vw, 5.8rem);
}

/* 02 Base */
body { background: var(--white); color: var(--text); font-family: var(--font); font-size: var(--f0); line-height: 1.7; }
h1, h2, h3 { margin: 0 0 0.5em; color: var(--ink); font-weight: 700; line-height: 1.18; letter-spacing: -0.01em; 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(--aqua-dark); text-underline-offset: 3px; }
a:hover { color: var(--ink); }
strong, b { color: var(--ink); font-weight: 600; }
ul, ol { margin: 0 0 1em; padding-left: 1.2em; }
.wrap { width: min(100% - 2rem, var(--wrap)); margin-inline: auto; }
.pill { display: inline-block; margin-bottom: 0.9rem; padding: 0.25rem 0.75rem; border-radius: 99px; background: var(--aqua-soft); color: var(--aqua-dark); font-size: 0.8rem; font-weight: 600; }
.mt { margin-top: 2rem; }

/* 03 Header — phone and Book stay in the bar at every width */
.hd { position: sticky; top: 0; z-index: 30; background: var(--white); border-bottom: 1px solid var(--line); }
.hd .wrap { display: flex; align-items: center; gap: 0.5rem; min-height: 66px; }
.og-logo { display: inline-flex; align-items: center; gap: 0.5rem; margin-right: auto; color: var(--ink); text-decoration: none; }
.og-logo svg { width: 36px; height: 36px; flex: none; }
.og-logo b { display: block; font-size: 1.25rem; font-weight: 700; line-height: 1; letter-spacing: -0.02em; }
.og-logo small { display: block; margin-top: 0.15rem; font-size: 0.7rem; color: var(--muted); }
.hd__tel { display: inline-grid; place-items: center; flex: none; width: 44px; height: 44px; border-radius: 50%; background: var(--aqua-soft); color: var(--aqua-dark); }
.hd__tel svg { width: 20px; height: 20px; }
.hd__tel span { display: none; }
.nav-toggle { display: inline-grid; place-items: center; flex: none; width: 44px; height: 44px; border: 0; border-radius: 50%; background: var(--slate); color: var(--ink); cursor: pointer; }
.nav-toggle svg { width: 21px; height: 21px; }
.onav { display: none; }
@media (max-width: 1023px) {
  .onav { position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0.2rem; padding: 0.6rem 1rem 1.2rem; background: var(--white); border-bottom: 1px solid var(--line); box-shadow: 0 18px 26px -22px rgba(20,23,26,0.5); }
  .onav.is-open { display: flex; }
  .onav a { padding: 0.8rem 1rem; border-radius: 10px; color: var(--ink); font-size: 1.05rem; font-weight: 600; text-decoration: none; }
  .onav a[aria-current="page"] { background: var(--aqua-soft); color: var(--aqua-dark); }
}
@media (max-width: 430px) { .og-logo small { display: none; } .og-logo b { font-size: 1.12rem; } .hd .btn { padding: 0.6rem 0.85rem; font-size: 0.88rem; } }
@media (min-width: 1024px) {
  .hd .wrap { min-height: 76px; gap: 1rem; }
  .nav-toggle { display: none; }
  .onav { display: flex; gap: 0.2rem; margin: 0 auto; }
  .onav a { position: relative; padding: 0.55rem 0.9rem; color: var(--text); font-weight: 500; text-decoration: none; }
  .onav a:hover { color: var(--ink); }
  .onav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
  .onav a[aria-current="page"]::after { content: ""; position: absolute; left: 0.9rem; right: 0.9rem; bottom: 0.15rem; height: 3px; border-radius: 3px; background: var(--aqua); }
  .hd__tel { width: auto; height: auto; padding: 0.5rem 0.9rem; border-radius: 99px; gap: 0.45rem; display: inline-flex; align-items: center; font-weight: 600; text-decoration: none; }
  .hd__tel span { display: inline; }
}

/* 04 Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.8rem 1.35rem; border: 0; border-radius: 99px; background: var(--aqua-dark); color: #fff; font: inherit; font-weight: 600; line-height: 1.3; text-decoration: none; white-space: nowrap; cursor: pointer; transition: background-color 0.2s, color 0.2s; }
.btn:hover { background: var(--char); color: #fff; }
.btn svg { width: 1.1em; height: 1.1em; flex: none; }
.btn--dark { background: var(--char); }
.btn--dark:hover { background: var(--aqua-dark); }
.btn--soft { background: var(--slate); color: var(--ink); }
.btn--soft:hover { background: var(--aqua-soft); color: var(--aqua-dark); }
.btn--white { background: #fff; color: var(--ink); }
.btn--white:hover { background: var(--aqua-soft); color: var(--aqua-dark); }
.btns { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 1.5rem; }

/* 05 Hero & symptom card */
.hero { padding-block: clamp(2.6rem, 2rem + 3vw, 4.4rem) var(--pad-y); background: linear-gradient(180deg, var(--slate) 0%, var(--white) 100%); }
.hero .wrap { display: grid; gap: 2.4rem; align-items: center; }
@media (min-width: 940px) { .hero .wrap { grid-template-columns: 1.05fr 0.95fr; gap: 3.4rem; } }
.hero p.lede { font-size: var(--f1); line-height: 1.55; color: var(--ink); max-width: 38ch; }
.symptoms { padding: 1.6rem; border-radius: var(--r); background: var(--white); border: 1px solid var(--line); box-shadow: 0 24px 40px -30px rgba(20,23,26,0.6); }
.symptoms h2 { font-size: 1.2rem; margin-bottom: 0.9rem; }
.symptoms ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.5rem; }
.symptoms a { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.85rem 1rem; border-radius: 10px; background: var(--slate); color: var(--ink); font-weight: 600; text-decoration: none; }
.symptoms a:hover { background: var(--aqua-soft); color: var(--aqua-dark); }
.symptoms svg { width: 20px; height: 20px; flex: none; color: var(--aqua-dark); }
.symptoms p { margin: 0.9rem 0 0; font-size: var(--f-sm); color: var(--muted); }

/* 06 Page heads */
.phead { padding-block: clamp(2.6rem, 2rem + 3vw, 4.2rem); background: var(--slate); }
.phead h1 { font-size: clamp(1.95rem, 1.5rem + 2.2vw, 3.1rem); max-width: 20ch; }
.phead p { font-size: 1.08rem; max-width: 58ch; }
.crumbs { display: flex; flex-wrap: wrap; gap: 0.45rem; margin: 0 0 0.9rem; padding: 0; list-style: none; font-size: 0.86rem; color: var(--muted); }
.crumbs li + li::before { content: "/"; margin-right: 0.45rem; color: var(--aqua); }

/* 07 Sections */
.sec { padding-block: var(--pad-y); }
.sec--slate { background: var(--slate); }
.sec--char { background: var(--char); color: #c9d0d4; }
.sec--char h2, .sec--char h3, .sec--char b { color: #fff; }
.sec--char .pill { background: rgba(255,255,255,0.12); color: #7fe3e0; }
.sec--char a:not(.btn) { color: #fff; }
.sec--char :focus-visible { outline-color: #7fe3e0; }
.row { display: grid; gap: 2.2rem; align-items: center; }
@media (min-width: 900px) { .row { grid-template-columns: 1fr 1fr; gap: 3.4rem; } .row--flip > :first-child { order: 2; } }
.row > * { min-width: 0; }
.row img, .row .img-placeholder { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--r); }
.bullets { margin: 1rem 0 0; padding: 0; list-style: none; display: grid; gap: 0.55rem; }
.bullets li { position: relative; padding-left: 1.7rem; }
.bullets li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 9px; height: 9px; border-radius: 50%; background: var(--aqua); }
.grid3 { display: grid; gap: 1rem; }
@media (min-width: 760px) { .grid3 { grid-template-columns: repeat(3, 1fr); } }
.tile { padding: 1.5rem; border-radius: var(--r); background: var(--white); border: 1px solid var(--line); }
.sec--slate .tile { background: var(--white); }
.tile h3 { font-size: 1.1rem; margin-bottom: 0.3rem; }
.tile p { margin: 0; font-size: var(--f-sm); }
.map { display: block; width: 100%; height: clamp(300px, 34vw, 420px); border-radius: var(--r); background: var(--aqua-soft); }
.where { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 880px) { .where { grid-template-columns: 0.85fr 1.15fr; gap: 3rem; } }

/* 08 Cycle timer (signature) */
.timer { display: grid; gap: 2rem; align-items: start; }
@media (min-width: 940px) { .timer { grid-template-columns: 0.95fr 1.05fr; gap: 3rem; } }
.clock { padding: clamp(1.6rem, 1.2rem + 2vw, 2.4rem); border-radius: var(--r); background: var(--char); color: #c9d0d4; text-align: center; }
.clock h2 { color: #fff; font-size: 1.2rem; }
.clock .read { display: block; margin: 0.6rem 0 1rem; font-size: clamp(3rem, 2.2rem + 4vw, 4.6rem); font-weight: 700; color: #fff; line-height: 1; font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.clock .btns { justify-content: center; margin-top: 0; }
.clock p { margin: 1rem auto 0; font-size: var(--f-sm); }
.clock :focus-visible { outline-color: #7fe3e0; }
.manual { margin-top: 1.4rem; padding: 1.2rem; border-radius: var(--r); background: var(--slate); }
.manual label { display: block; margin-bottom: 0.4rem; font-weight: 600; color: var(--ink); font-size: 0.95rem; }
.manual .line { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; }
.manual input { width: 7rem; }
.verdict { padding: clamp(1.4rem, 1rem + 1.6vw, 2rem); border-radius: var(--r); border: 1px solid var(--line); background: var(--white); }
.verdict h3 { font-size: 1.3rem; }
.verdict[data-state="short"] { border-left: 6px solid #b3261e; }
.verdict[data-state="ok"] { border-left: 6px solid var(--aqua); }
.verdict[data-state="long"] { border-left: 6px solid #b06a00; }
.scale { margin: 1.4rem 0 0; padding: 0; list-style: none; display: grid; gap: 0.5rem; }
.scale li { display: grid; grid-template-columns: 6.5rem 1fr; gap: 1rem; padding: 0.8rem 1rem; border-radius: 10px; background: var(--slate); font-size: var(--f-sm); }
.scale b { color: var(--ink); }
.scale li.is-on { background: var(--aqua-soft); box-shadow: inset 0 0 0 2px var(--aqua); }

/* 09 FAQ */
.faq { display: grid; gap: 0.6rem; max-width: 880px; }
.oq { border-radius: var(--r); background: var(--slate); }
.oq summary { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 1.2rem; font-weight: 600; color: var(--ink); list-style: none; }
.oq summary::after { content: ""; flex: none; width: 22px; height: 22px; margin-top: 0.2em; border-radius: 50%; background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230b6f6f' stroke-width='3' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") center / 13px no-repeat; transition: transform 0.2s; }
.oq[open] summary::after { transform: rotate(180deg); }
.oq > div { padding: 0 1.2rem 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: 600; 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 #c6cdd1; border-radius: 10px; }
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='%230b6f6f' 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(--aqua-dark); }
.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 #c6cdd1; background: var(--white); font-size: var(--f-sm); cursor: pointer; }
.pick input:checked + span { background: var(--aqua-dark); border-color: var(--aqua-dark); 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: 1.15fr 0.85fr; gap: 3.2rem; } }
.contact > * { min-width: 0; }
.info { display: grid; gap: 1rem; }
.info__card { padding: 1.6rem; border-radius: var(--r); background: var(--slate); }
.info__card h2 { font-size: 1.15rem; }
.info__card .big { display: block; margin: 0.2rem 0 0.4rem; color: var(--ink); font-size: 1.5rem; font-weight: 700; text-decoration: none; letter-spacing: -0.02em; }

/* 11 Footer */
.ft { background: var(--char); color: #b6bfc4; font-size: var(--f-sm); }
.ft a { color: #fff; }
.ft :focus-visible { outline-color: #7fe3e0; }
.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-size: 1.3rem; font-weight: 700; color: #fff; }
.ft h2 { margin: 0 0 0.6rem; font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; color: #7fe3e0; }
.ft ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 0.35rem; }
.ft__base { padding-block: 1rem; border-top: 1px solid rgba(255,255,255,0.13); font-size: 0.82rem; }

/* 12 Images */
.img-placeholder { background: var(--aqua-soft); border: 1px dashed #93c3c1; border-radius: var(--r); color: var(--muted); }
.img-placeholder b { color: var(--ink); }
.herostack { display: grid; gap: 1rem; }
.herostack figure img, .herostack figure .img-placeholder { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: var(--r); }
@media (max-width: 939px) { .herostack figure { display: none; } }