/*
 * Local, dependency-free equivalent of the small Tailwind utility set used by
 * these pages. Keeping it here (instead of loading a CDN framework) makes the
 * static export render reliably while preserving the original page markup.
 */
:root {
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-400: #9ca3af;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 320px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.5;
    color: var(--gray-900);
    background: var(--gray-50);
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }

/* Header */
.navbar { position: sticky; top: 0; z-index: 50; background: #fff; box-shadow: 0 1px 3px rgb(0 0 0 / .1), 0 1px 2px rgb(0 0 0 / .06); }
.container { width: 100%; max-width: 1280px; margin-inline: auto; }
.navbar .container { min-height: 80px; }
.flex { display: flex; }
.hidden { display: none; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.logo-zone img { width: auto; height: 48px; }
.links-zone { align-items: center; gap: 2rem; font-size: .875rem; font-weight: 600; color: var(--gray-700); }
.links-zone a { padding-block: .5rem; transition: color .2s ease; white-space: nowrap; }
.links-zone a:hover, .links-zone a:focus-visible { color: var(--blue-600); }
.cta-zone { margin-left: 1.5rem; }
.btn-nav-contact, .btn-primary {
    display: inline-flex; align-items: center; justify-content: center;
    border: 0; border-radius: 9999px; background: var(--blue-600); color: #fff;
    font-weight: 700; box-shadow: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);
    transition: background-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.btn-nav-contact { padding: .65rem 1rem; font-size: .875rem; }
.btn-primary { padding: .75rem 2rem; }
.btn-nav-contact:hover, .btn-primary:hover { background: var(--blue-700); transform: translateY(-1px); }
.btn-nav-contact:focus-visible, .btn-primary:focus-visible, a:focus-visible { outline: 3px solid rgb(59 130 246 / .5); outline-offset: 3px; }

/* Hero */
.hero-gradient {
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-inline: 1rem;
    color: #fff;
    text-align: center;
    background: linear-gradient(rgb(0 0 0 / .85), rgb(0 0 0 / .85)), url("images/hero-hvac.jpg") center / cover no-repeat;
}
.hero-gradient > div { max-width: 1100px; }
.h-\[500px\] { min-height: 500px; }
.text-shadow-heavy { text-shadow: 3px 3px 6px #000, 0 0 15px rgb(0 0 0 / .8); }
h1, h2, h3, h4, p { margin-top: 0; }
h1 { margin-bottom: 1.5rem; font-size: 2.25rem; line-height: 1.1; font-weight: 700; letter-spacing: -.025em; }
h2 { letter-spacing: -.025em; }
.hero-gradient p { margin-bottom: 2rem; font-size: 1.25rem; line-height: 1.75rem; color: var(--gray-200); }

/* Main content utility classes */
.px-4 { padding-inline: 1rem; } .px-6 { padding-inline: 1.5rem; }
.py-4 { padding-block: 1rem; } .py-12 { padding-block: 3rem; } .py-20 { padding-block: 5rem; }
.p-4 { padding: 1rem; } .p-6 { padding: 1.5rem; } .p-8 { padding: 2rem; } .p-10 { padding: 2.5rem; }
.mx-auto { margin-inline: auto; } .mb-2 { margin-bottom: .5rem; } .mb-4 { margin-bottom: 1rem; } .mb-6 { margin-bottom: 1.5rem; } .mb-8 { margin-bottom: 2rem; }
.mt-2 { margin-top: .5rem; } .mt-4 { margin-top: 1rem; }
.mr-2 { margin-right: .5rem; } .mr-3 { margin-right: .75rem; } .mr-4 { margin-right: 1rem; }
.grid { display: grid; min-width: 0; } .grid > * { min-width: 0; } .gap-8 { gap: 2rem; } .gap-12 { gap: 3rem; } .gap-16 { gap: 4rem; }
.space-y-4 > * + * { margin-top: 1rem; } .space-y-6 > * + * { margin-top: 1.5rem; } .space-y-8 > * + * { margin-top: 2rem; }
.bg-white { background-color: #fff; } .bg-gray-900 { background-color: var(--gray-900); }
.text-white { color: #fff; } .text-gray-100 { color: var(--gray-100); } .text-gray-200 { color: var(--gray-200); } .text-gray-400 { color: var(--gray-400); }
.text-gray-600 { color: var(--gray-600); } .text-gray-700 { color: var(--gray-700); } .text-gray-800 { color: var(--gray-800); }
.text-blue-400 { color: #60a5fa; } .text-blue-500 { color: var(--blue-500); } .text-blue-600 { color: var(--blue-600); } .text-blue-800 { color: #1e40af; }
.text-center { text-align: center; } .text-left { text-align: left; }
.text-sm { font-size: .875rem; } .text-lg { font-size: 1.125rem; line-height: 1.75rem; } .text-xl { font-size: 1.25rem; line-height: 1.75rem; } .text-2xl { font-size: 1.5rem; line-height: 2rem; } .text-3xl { font-size: 1.875rem; line-height: 2.25rem; } .text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
.font-bold { font-weight: 700; } .font-semibold { font-weight: 600; } .leading-relaxed { line-height: 1.625; }
.max-w-2xl { max-width: 42rem; } .max-w-3xl { max-width: 48rem; }
.rounded-lg { border-radius: .5rem; } .rounded-xl { border-radius: .75rem; } .rounded-2xl { border-radius: 1rem; } .rounded-full { border-radius: 9999px; }
.border { border: 1px solid #e5e7eb; } .border-gray-100 { border-color: var(--gray-100); } .border-t-4 { border-top-width: 4px; border-top-style: solid; } .border-b-4 { border-bottom-width: 4px; border-bottom-style: solid; } .border-l-4 { border-left-width: 4px; border-left-style: solid; } .border-blue-600 { border-color: var(--blue-600); }
.shadow-sm { box-shadow: 0 1px 2px rgb(0 0 0 / .05); } .shadow-md { box-shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1); } .shadow-2xl { box-shadow: 0 25px 50px -12px rgb(0 0 0 / .25); }
.flex-col { flex-direction: column; } .items-start { align-items: flex-start; } .flex-1 { flex: 1 1 0%; }
.order-1 { order: 1; } .order-2 { order: 2; }
.hover\:underline:hover { text-decoration: underline; }

footer { font-size: 1rem; }
footer h3 { margin-bottom: 1rem; }
footer p { margin-bottom: 0; }

@media (min-width: 768px) {
    .md\:flex { display: flex; }
    .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:text-5xl { font-size: 3rem; line-height: 1; }
    .md\:text-6xl { font-size: 3.75rem; line-height: 1; }
    .md\:order-scale-1 { order: 1; } .md\:order-scale-2 { order: 2; }
}

@media (max-width: 1080px) {
    .links-zone { display: none; }
    .cta-zone { margin-left: 1rem; }
}

@media (max-width: 767px) {
    .navbar .container { min-height: 70px; padding-inline: 1rem; }
    .logo-zone img { height: 34px; }
    .cta-zone { margin-left: auto; }
    .btn-nav-contact { padding: .55rem .75rem; font-size: .75rem; }
    .py-20 { padding-block: 3.75rem; }
    .gap-16 { gap: 2.5rem; }
    .h-\[500px\] { min-height: 420px; }
    h1 { font-size: 2rem; overflow-wrap: anywhere; }
    .hero-gradient p { font-size: 1.0625rem; line-height: 1.6; overflow-wrap: anywhere; }
}