/* Fresh Air Duct Cleaning North Miami — styles */
:root{
  --navy:#0b2a4a; --blue:#0b5fa5; --blue-600:#0a4f8a; --teal:#0e9f9a; --teal-700:#0b7a76;
  --sky:#e8f4fb; --mint:#e7f7f5; --ink:#1b2733; --muted:#4a5a6a; --line:#d9e4ee; --white:#fff;
  --radius:14px; --shadow:0 10px 30px rgba(11,42,74,.10); --shadow-sm:0 2px 10px rgba(11,42,74,.08);
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --max:1160px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--white);line-height:1.6;font-size:1.0625rem;padding-bottom:72px}
@media (min-width:900px){body{padding-bottom:0}}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--blue)}
a:hover{color:var(--blue-600)}
:focus-visible{outline:3px solid #f2b705;outline-offset:2px;border-radius:4px}
h1,h2,h3{line-height:1.2;color:var(--navy);letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.1rem);margin:.2em 0 .4em}
h2{font-size:clamp(1.6rem,3.4vw,2.2rem);margin:0 0 .5em}
h3{font-size:1.2rem;margin:0 0 .4em}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;padding:10px 16px;z-index:1000}
.skip-link:focus{left:10px;top:10px}
.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px}
.logo{display:flex;align-items:center;text-decoration:none}
.logo img{width:210px;height:auto}
.nav{display:none}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:4px}
.nav a{display:block;padding:10px 12px;border-radius:8px;text-decoration:none;color:var(--navy);font-weight:600;font-size:.98rem}
.nav a:hover,.nav a[aria-current="page"]{background:var(--sky);color:var(--blue)}
.header-actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:999px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font-size:1rem;font-family:inherit;line-height:1.2;transition:transform .15s ease,background .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--teal-700);color:#fff;box-shadow:0 6px 16px rgba(14,159,154,.28)}
.btn-primary:hover{background:#086662;color:#fff}
.btn-call{background:var(--blue);color:#fff}
.btn-call:hover{background:var(--blue-600);color:#fff}
.btn-outline{background:#fff;color:var(--blue);border-color:var(--blue)}
.btn-outline:hover{background:var(--sky)}
.btn-light{background:#fff;color:var(--navy)}
.btn-light:hover{color:var(--blue)}
.btn svg{width:18px;height:18px;flex:none}
.header-phone{display:none}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:10px;border:1px solid var(--line);background:#fff;cursor:pointer}
.menu-toggle span,.menu-toggle span::before,.menu-toggle span::after{display:block;width:22px;height:2px;background:var(--navy);position:relative;content:"";transition:.2s}
.menu-toggle span::before{position:absolute;top:-7px}.menu-toggle span::after{position:absolute;top:7px}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-nav.open{display:block}
.mobile-nav ul{list-style:none;margin:0;padding:10px 20px 18px}
.mobile-nav a{display:block;padding:12px 4px;border-bottom:1px solid var(--line);text-decoration:none;color:var(--navy);font-weight:600}
@media (min-width:560px){.header-phone{display:inline-flex}}
@media (min-width:1100px){.nav{display:block}.menu-toggle{display:none}.mobile-nav{display:none!important}}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(135deg,#0b2a4a 0%,#0b5fa5 55%,#0e9f9a 100%);color:#fff}
.hero::after{content:"";position:absolute;inset:0;background:url("/assets/airflow.svg") no-repeat right -80px center/680px auto;opacity:.18;pointer-events:none}
.hero .container{position:relative;z-index:1;display:grid;gap:36px;padding-top:48px;padding-bottom:56px}
@media (min-width:960px){.hero .container{grid-template-columns:1.1fr .9fr;align-items:center;padding-top:72px;padding-bottom:80px}}
.hero h1{color:#fff}
.hero .eyebrow{color:#bdf3ef}
.hero p.lead{font-size:1.18rem;color:#e6f2fb;max-width:36em}
.eyebrow{display:inline-block;font-weight:700;text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;color:var(--teal-700)}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
.hero-phone{font-size:1.35rem}
.hero-points{list-style:none;padding:0;margin:18px 0 0;display:grid;gap:8px}
.hero-points li{display:flex;gap:10px;align-items:flex-start;color:#e6f2fb}
.hero-points svg{width:20px;height:20px;flex:none;margin-top:3px}
.page-hero{background:linear-gradient(135deg,#0b2a4a 0%,#0b5fa5 70%,#0e9f9a 100%);color:#fff;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;inset:0;background:url("/assets/airflow.svg") no-repeat right -120px center/560px auto;opacity:.16;pointer-events:none}
.page-hero .container{position:relative;z-index:1;padding-top:40px;padding-bottom:48px}
.page-hero h1{color:#fff;max-width:20em}
.page-hero p{color:#e6f2fb;font-size:1.12rem;max-width:42em}
.page-hero .hero-cta{margin-bottom:0}
.breadcrumbs{font-size:.9rem;margin-bottom:6px}
.breadcrumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumbs li+li::before{content:"/";margin-right:6px;color:#9cc6e6}
.breadcrumbs a{color:#cfe7f8}
.breadcrumbs [aria-current]{color:#fff}

/* Form card */
.form-card{background:#fff;color:var(--ink);border-radius:18px;padding:26px;box-shadow:0 20px 50px rgba(0,0,0,.22)}
.form-card h2{font-size:1.45rem;margin-bottom:.25em}
.form-card .sub{color:var(--muted);margin-bottom:16px;font-size:.98rem}
.field{margin-bottom:14px}
.field label{display:block;font-weight:650;font-size:.95rem;margin-bottom:6px;color:var(--navy)}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1.5px solid #b9c9d8;border-radius:10px;font:inherit;font-size:1rem;color:var(--ink);background:#fff}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue);outline:3px solid rgba(11,95,165,.25);outline-offset:0}
.field-row{display:grid;gap:0 14px}
@media (min-width:520px){.field-row{grid-template-columns:1fr 1fr}}
.req{color:#b42318}
.form-card .btn{width:100%;margin-top:4px;padding:15px}
.consent{font-size:.85rem;color:var(--muted);margin:12px 0 0}
.hidden-field{display:none}
.form-call{text-align:center;margin:12px 0 0;font-size:.95rem;color:var(--muted)}

/* Sections */
section{padding:64px 0}
@media (min-width:900px){section{padding:84px 0}}
.section-alt{background:var(--sky)}
.section-mint{background:var(--mint)}
.section-head{max-width:46em;margin-bottom:34px}
.section-head p{color:var(--muted);font-size:1.08rem}
.center{text-align:center;margin-left:auto;margin-right:auto}
.grid{display:grid;gap:22px}
@media (min-width:640px){.grid-2{grid-template-columns:repeat(2,1fr)}.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media (min-width:960px){.grid-4{grid-template-columns:repeat(4,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.card p{color:var(--muted)}
.card .more{margin-top:auto;font-weight:700;text-decoration:none}
.card .more::after{content:" →"}
.icon{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,var(--sky),var(--mint));display:grid;place-items:center;margin-bottom:16px}
.icon svg{width:30px;height:30px}
.service-card{transition:transform .15s ease,box-shadow .15s ease}
.service-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.split{display:grid;gap:36px;align-items:center}
@media (min-width:900px){.split{grid-template-columns:1fr 1fr}.split.wide-left{grid-template-columns:1.3fr .7fr;align-items:start}}
.illustration{border-radius:20px;background:linear-gradient(160deg,#eaf6ff,#e3f8f5);padding:24px;border:1px solid var(--line)}
.checklist{list-style:none;padding:0;margin:0 0 1em;display:grid;gap:12px}
.checklist li{position:relative;padding-left:34px}
.checklist li::before{content:"";position:absolute;left:0;top:3px;width:22px;height:22px;border-radius:50%;background:var(--teal-700) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/14px no-repeat}
.steps{counter-reset:step;list-style:none;padding:0;margin:0;display:grid;gap:22px}
@media (min-width:800px){.steps{grid-template-columns:repeat(4,1fr)}}
.steps.three{}
@media (min-width:800px){.steps.three{grid-template-columns:repeat(3,1fr)}}
.steps li{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;position:relative}
.steps li::before{content:counter(step);display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;margin-bottom:12px}
.steps p{color:var(--muted);margin:0}
.area-list{list-style:none;padding:0;margin:0;display:grid;gap:10px;grid-template-columns:repeat(2,1fr)}
@media (min-width:700px){.area-list{grid-template-columns:repeat(3,1fr)}}
@media (min-width:1000px){.area-list.five{grid-template-columns:repeat(5,1fr)}}
.area-list a{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:12px 14px;text-decoration:none;font-weight:650;color:var(--navy)}
.area-list a:hover{border-color:var(--blue);color:var(--blue)}
.area-list svg{width:18px;height:18px;flex:none;color:var(--teal)}
.pill-list{list-style:none;padding:0;margin:0 0 1em;display:flex;flex-wrap:wrap;gap:8px}
.pill-list li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:.95rem;color:var(--navy)}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;padding:0 20px}
.faq summary{cursor:pointer;font-weight:700;color:var(--navy);padding:18px 28px 18px 0;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:0;top:14px;font-size:1.5rem;color:var(--blue);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted)}
.cta-band{background:linear-gradient(120deg,var(--navy),var(--blue) 60%,var(--teal));color:#fff;border-radius:22px;padding:42px 28px;display:grid;gap:20px;align-items:center}
@media (min-width:860px){.cta-band{grid-template-columns:1.4fr auto;padding:52px 48px}}
.cta-band h2{color:#fff;margin-bottom:.3em}
.cta-band p{color:#e1eef9;margin:0}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:12px}
.prose{max-width:46em}
.prose h2{margin-top:1.4em}
.prose h3{margin-top:1.2em}
.prose ul{padding-left:1.2em}
.prose li{margin-bottom:.4em}
.aside-card{background:var(--sky);border:1px solid var(--line);border-radius:var(--radius);padding:24px;position:sticky;top:96px}
.aside-card h2{font-size:1.25rem}
.aside-card ul{padding-left:1.1em;margin:0 0 1em}
.note{background:var(--mint);border-left:4px solid var(--teal);padding:14px 18px;border-radius:8px;color:var(--ink)}
.map-wrap{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);aspect-ratio:4/3;background:var(--sky)}
.map-wrap iframe{width:100%;height:100%;border:0;display:block}
.contact-list{list-style:none;padding:0;margin:0 0 1.2em;display:grid;gap:14px}
.contact-list li{display:flex;gap:12px;align-items:flex-start}
.contact-list svg{width:22px;height:22px;flex:none;color:var(--blue);margin-top:3px}
.big-phone{font-size:1.6rem;font-weight:800;text-decoration:none}

/* Footer */
.site-footer{background:var(--navy);color:#c9d8e6;padding:56px 0 28px;font-size:.97rem}
.site-footer a{color:#e6f1fa;text-decoration:none}
.site-footer a:hover{text-decoration:underline;color:#fff}
.footer-grid{display:grid;gap:30px}
@media (min-width:760px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.site-footer h2{color:#fff;font-size:1.05rem;margin-bottom:12px}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px}
.footer-logo{width:220px;margin-bottom:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:36px;padding-top:20px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:.88rem}

/* Sticky mobile bar */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:60;display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.97);border-top:1px solid var(--line);box-shadow:0 -6px 20px rgba(11,42,74,.12)}
.mobile-bar .btn{padding:13px 10px;width:100%}
@media (min-width:900px){.mobile-bar{display:none}}

/* Misc */
.thank-icon{width:84px;height:84px;margin:0 auto 18px}
.error-code{font-size:5rem;font-weight:900;color:var(--blue);line-height:1;margin:0}
.lead-muted{color:var(--muted);font-size:1.1rem}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
/* utilities (no inline styles, CSP-friendly) */
.mt-12{margin-top:12px}.mt-22{margin-top:22px}.mt-28{margin-top:28px}.mt-40{margin-top:40px}.mt-44{margin-top:44px}.mb-28{margin-bottom:28px}
.align-start{align-items:start}
.one-col{grid-template-columns:1fr!important}
.narrow-center{text-align:center;max-width:760px}
.narrow-center .area-list{max-width:640px;margin:0 auto}
.justify-center{justify-content:center}
.h-sm{font-size:1.3rem}
/* header refinements */
.nav a{white-space:nowrap;padding:9px 10px;font-size:.95rem}
.header-phone{white-space:nowrap}
.logo img{width:200px}
@media (max-width:1219px){.nav{display:none!important}.menu-toggle{display:inline-flex!important}.mobile-nav.open{display:block!important}}
@media (min-width:1220px){.nav{display:block}.menu-toggle{display:none}}
.illustration svg{max-height:280px;margin:0 auto;width:100%}