/* ============================================================================= Fylde Boiler Co. — design system ----------------------------------------------------------------------------- Premium, minimal, trustworthy. Restrained palette, confident typography, generous whitespace. System-font stack for performance (no web fonts, so no render-blocking / layout shift). A small critical subset of this file is also inlined into each page's ; this full sheet is loaded async. ========================================================================== */ /* ---- Design tokens ------------------------------------------------------- */ :root { --ink: #141414; /* near-black text */ --ink-soft: #3a3a38; /* secondary text */ --ink-mute: #6b6b66; /* muted / captions */ --paper: #FAFAF8; /* off-white background */ --paper-2: #F2F1EC; /* subtle section tint */ --line: #E4E2DA; /* hairline borders */ --accent: #12303A; /* deep navy/forest — brand */ --accent-ink: #0b1f27; /* darker accent for hovers */ --accent-soft:#1c4553; /* lighter accent */ --wa: #25D366; /* WhatsApp green — reserved for CTA only */ --wa-ink: #1ebe5a; /* WhatsApp hover */ --maxw: 1180px; --gap: clamp(1.25rem, 3vw, 2rem); --radius: 14px; --radius-sm: 10px; --shadow-sm: 0 1px 2px rgba(20,20,20,.04), 0 2px 8px rgba(20,20,20,.05); --shadow-md: 0 8px 30px rgba(18,48,58,.10); --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Helvetica Neue", sans-serif; --step--1: clamp(.86rem, .84rem + .1vw, .92rem); --step-0: clamp(1rem, .96rem + .2vw, 1.08rem); --step-1: clamp(1.2rem, 1.1rem + .5vw, 1.4rem); --step-2: clamp(1.5rem, 1.3rem + .9vw, 2rem); --step-3: clamp(2rem, 1.6rem + 2vw, 3rem); --step-4: clamp(2.6rem, 2rem + 3.2vw, 4.25rem); } /* ---- Reset / base -------------------------------------------------------- */ *, *::before, *::after { box-sizing: border-box; } html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; } @media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } } body { margin: 0; font-family: var(--font); font-size: var(--step-0); line-height: 1.65; color: var(--ink); background: var(--paper); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; } img, svg, video { max-width: 100%; height: auto; display: block; } .content-img { width: 100%; height: auto; border-radius: var(--radius); } a { color: var(--accent); text-decoration: none; } a:hover { color: var(--accent-ink); } h1, h2, h3, h4 { line-height: 1.12; letter-spacing: -0.02em; margin: 0 0 .5em; font-weight: 700; } h1 { font-size: var(--step-4); letter-spacing: -0.035em; } h2 { font-size: var(--step-3); } h3 { font-size: var(--step-1); letter-spacing: -0.015em; } p { margin: 0 0 1rem; max-width: 68ch; } :focus-visible { outline: 3px solid var(--accent-soft); outline-offset: 2px; border-radius: 4px; } .skip-link { position: absolute; left: -9999px; top: 0; z-index: 200; background: var(--accent); color: #fff; padding: .75rem 1rem; border-radius: 0 0 8px 0; } .skip-link:focus { left: 0; color: #fff; } /* ---- Layout -------------------------------------------------------------- */ .container { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gap); } .section { padding-block: clamp(3rem, 7vw, 6rem); } .section--tint { background: var(--paper-2); } .section--accent { background: var(--accent); color: #fff; } .section--accent h2, .section--accent h3 { color: #fff; } .section--accent p { color: rgba(255,255,255,.82); } .section__head { max-width: 62ch; margin-bottom: clamp(1.75rem, 4vw, 2.75rem); } .eyebrow { display: inline-block; font-size: var(--step--1); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--accent-soft); margin-bottom: .85rem; } .section--accent .eyebrow { color: #8fb4c0; } .lead { font-size: var(--step-1); color: var(--ink-soft); line-height: 1.5; } .muted { color: var(--ink-mute); } .center { text-align: center; } .center .section__head, .center p { margin-inline: auto; } /* ---- Buttons ------------------------------------------------------------- */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: .6rem; min-height: 48px; padding: .85rem 1.5rem; border-radius: 999px; font-size: var(--step-0); font-weight: 700; letter-spacing: -0.01em; border: 1.5px solid transparent; cursor: pointer; transition: transform .12s ease, background .16s ease, box-shadow .16s ease; text-align: center; } .btn:active { transform: translateY(1px); } .btn svg { flex: none; } /* WhatsApp — the ONE warm signal colour. Reserved for the primary CTA. */ .btn-wa { background: var(--wa); color: #fff; box-shadow: 0 6px 20px rgba(37,211,102,.28); } .btn-wa:hover { background: var(--wa-ink); color: #fff; box-shadow: 0 8px 26px rgba(37,211,102,.36); } .btn-wa--lg { min-height: 58px; padding: 1rem 2rem; font-size: var(--step-1); } .btn-wa__sub { display: block; font-size: var(--step--1); font-weight: 500; opacity: .92; letter-spacing: 0; } /* Secondary / tel — visually subordinate */ .btn-outline { background: transparent; color: var(--accent); border-color: var(--line); } .btn-outline:hover { border-color: var(--accent); background: #fff; } .section--accent .btn-outline { color: #fff; border-color: rgba(255,255,255,.35); } .section--accent .btn-outline:hover { border-color: #fff; background: rgba(255,255,255,.08); } .btn-link { color: var(--accent); font-weight: 700; } .btn-link::after { content: " \2192"; } .cta-row { display: flex; flex-wrap: wrap; gap: .9rem 1.1rem; align-items: center; } .cta-row--center { justify-content: center; } /* ---- Header -------------------------------------------------------------- */ .site-header { position: sticky; top: 0; z-index: 100; min-height: 69px; /* reserved so JS-injected nav causes ~zero CLS */ background: rgba(250,250,248,.86); backdrop-filter: saturate(140%) blur(10px); border-bottom: 1px solid var(--line); } .site-header__inner { display: flex; align-items: center; gap: 1rem; min-height: 68px; } .brand { display: inline-flex; align-items: center; flex-shrink: 0; color: var(--ink); } .brand:hover { color: var(--ink); } .brand__logo { height: 40px; width: auto; display: block; } .site-nav { margin-left: auto; } #site-menu { display: flex; align-items: center; gap: 1.4rem; list-style: none; margin: 0; padding: 0; } #site-menu a { color: var(--ink-soft); font-weight: 600; font-size: .98rem; } #site-menu a:hover, #site-menu a[aria-current="page"] { color: var(--ink); } .header-cta { margin-left: .4rem; } .nav__toggle { display: none; margin-left: auto; width: 46px; height: 46px; border: 1px solid var(--line); background: #fff; border-radius: 10px; cursor: pointer; align-items: center; justify-content: center; } .nav__toggle span, .nav__toggle span::before, .nav__toggle span::after { content: ""; display: block; width: 20px; height: 2px; background: var(--ink); position: relative; transition: transform .2s ease, opacity .2s ease; } .nav__toggle span::before { position: absolute; top: -6px; } .nav__toggle span::after { position: absolute; top: 6px; } /* ---- Hero ---------------------------------------------------------------- */ .hero { padding-block: clamp(2.5rem, 6vw, 5rem); } .hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; } .hero h1 { margin-bottom: .5rem; } .hero__sub { font-size: var(--step-1); color: var(--ink-soft); line-height: 1.5; margin-bottom: 1.75rem; max-width: 34ch; } .hero .cta-row { margin-bottom: 1.5rem; } .trust-row { display: flex; flex-wrap: wrap; gap: .5rem 1.35rem; align-items: center; font-size: var(--step--1); color: var(--ink-soft); font-weight: 600; } .trust-row li { list-style: none; display: inline-flex; align-items: center; gap: .4rem; } .trust-row { margin: 0; padding: 0; } .stars { color: #c8891b; letter-spacing: 1px; } /* ---- Image placeholders -------------------------------------------------- */ .ph { position: relative; overflow: hidden; border-radius: var(--radius); background: var(--paper-2); border: 1px dashed #cdccc3; display: flex; align-items: center; justify-content: center; text-align: center; color: var(--ink-mute); font-size: var(--step--1); font-weight: 600; padding: 1rem; background-image: linear-gradient(135deg, #eceae2 25%, transparent 25%), linear-gradient(225deg, #eceae2 25%, transparent 25%), linear-gradient(45deg, #eceae2 25%, transparent 25%), linear-gradient(315deg, #eceae2 25%, #f4f3ee 25%); background-size: 22px 22px; background-position: 11px 0, 11px 0, 0 0, 0 0; } .ph--16x9 { aspect-ratio: 16 / 9; } .ph--4x3 { aspect-ratio: 4 / 3; } .ph--3x4 { aspect-ratio: 3 / 4; } .ph--1x1 { aspect-ratio: 1 / 1; } .ph__label { background: rgba(255,255,255,.75); padding: .4rem .7rem; border-radius: 8px; max-width: 90%; } /* ---- Trust bar ----------------------------------------------------------- */ .trustbar { border-block: 1px solid var(--line); background: #fff; } .trustbar__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; padding-block: 1.5rem; text-align: center; } .trustbar__item { display: flex; flex-direction: column; gap: .2rem; align-items: center; } .trustbar__num { font-size: var(--step-2); font-weight: 800; letter-spacing: -0.03em; color: var(--accent); line-height: 1; } .trustbar__label { font-size: var(--step--1); color: var(--ink-mute); font-weight: 600; } .gas-safe-badge { display: inline-flex; align-items: center; gap: .5rem; font-weight: 800; color: var(--accent); border: 2px solid var(--accent); border-radius: 8px; padding: .35rem .6rem; font-size: .85rem; letter-spacing: -0.01em; } .gas-safe-badge small { display: block; font-weight: 600; color: var(--ink-mute); font-size: .68rem; letter-spacing: .04em; } /* ---- Cards --------------------------------------------------------------- */ .grid { display: grid; gap: clamp(1rem, 2.5vw, 1.75rem); } .grid--2 { grid-template-columns: repeat(2, 1fr); } .grid--3 { grid-template-columns: repeat(3, 1fr); } .grid--4 { grid-template-columns: repeat(4, 1fr); } .card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.4rem, 2.5vw, 1.9rem); box-shadow: var(--shadow-sm); } .card h3 { margin-bottom: .4rem; } .card p { margin-bottom: 0; color: var(--ink-soft); } .card__icon { width: 44px; height: 44px; border-radius: 10px; background: var(--paper-2); color: var(--accent); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 1rem; } .card__icon svg { width: 24px; height: 24px; } /* Steps */ .steps { counter-reset: step; } .step { position: relative; padding-left: 3.5rem; } .step::before { counter-increment: step; content: counter(step); position: absolute; left: 0; top: 0; width: 2.4rem; height: 2.4rem; border-radius: 999px; background: var(--accent); color: #fff; font-weight: 800; display: flex; align-items: center; justify-content: center; } .step h3 { margin-bottom: .3rem; } /* Brand chips */ .chips { display: flex; flex-wrap: wrap; gap: .6rem; list-style: none; padding: 0; margin: 1.25rem 0 0; } .chips li { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: .5rem 1.1rem; font-weight: 700; color: var(--accent); } /* Includes / feature list */ .check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .75rem; } .check-list li { position: relative; padding-left: 2rem; color: var(--ink-soft); } .check-list li::before { content: ""; position: absolute; left: 0; top: .35em; width: 1.2rem; height: 1.2rem; border-radius: 50%; background: var(--accent); -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/1.2rem no-repeat; mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='white' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/1.2rem no-repeat; } /* ---- Reviews ------------------------------------------------------------- */ .review { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.75rem; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; gap: .75rem; } .review__stars { color: #c8891b; letter-spacing: 2px; font-size: 1.05rem; } .review__text { color: var(--ink); margin: 0; font-size: var(--step-0); } .review__meta { font-weight: 700; color: var(--ink); font-size: .95rem; } .review__meta span { display: block; font-weight: 500; color: var(--ink-mute); font-size: .85rem; } /* ---- Finance ------------------------------------------------------------- */ .finance-box { display: flex; flex-wrap: wrap; gap: 2rem; align-items: center; justify-content: space-between; } .finance-box .price { font-size: var(--step-3); font-weight: 800; color: var(--accent); letter-spacing: -0.03em; } /* ---- FAQ (native details/summary — accessible, no JS needed) ------------- */ .faq { display: grid; gap: .75rem; max-width: 820px; } .faq__item { border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; overflow: hidden; } .faq__item > summary { cursor: pointer; list-style: none; padding: 1.1rem 1.25rem; font-weight: 700; font-size: var(--step-0); display: flex; justify-content: space-between; align-items: center; gap: 1rem; color: var(--ink); } .faq__item > summary::-webkit-details-marker { display: none; } .faq__q { display: inline; } .faq__item > summary::after { content: "+"; font-size: 1.4rem; color: var(--accent); font-weight: 400; transition: transform .2s ease; } .faq__item[open] > summary::after { transform: rotate(45deg); } .faq__a { padding: 0 1.25rem 1.2rem; color: var(--ink-soft); margin: 0; } /* ---- Final CTA band ------------------------------------------------------ */ .cta-band { text-align: center; } .cta-band h2 { margin-bottom: .5rem; } .cta-band p { margin-inline: auto; margin-bottom: 1.75rem; color: rgba(255,255,255,.82); } /* ---- Breadcrumb ---------------------------------------------------------- */ .breadcrumb { padding-top: 1.5rem; } .breadcrumb ol { display: flex; flex-wrap: wrap; gap: .4rem; list-style: none; margin: 0; padding: 0; font-size: var(--step--1); color: var(--ink-mute); } .breadcrumb__item + .breadcrumb__item::before { content: "/"; margin-right: .4rem; color: var(--line); } .breadcrumb a { color: var(--ink-mute); font-weight: 600; } .breadcrumb a:hover { color: var(--accent); } /* ---- Footer -------------------------------------------------------------- */ .site-footer { background: var(--accent); color: rgba(255,255,255,.78); padding-block: clamp(2.5rem, 5vw, 4rem); } .site-footer a { color: #fff; } .site-footer a:hover { color: #cfe0e6; } .footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2rem; } .footer__brand { color: #fff; font-weight: 800; font-size: 1.15rem; letter-spacing: -0.03em; margin-bottom: .5rem; } .footer h4 { color: #fff; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 1rem; } .footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; font-size: .95rem; } .footer__bottom { border-top: 1px solid rgba(255,255,255,.14); margin-top: 2.5rem; padding-top: 1.5rem; font-size: .85rem; display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; justify-content: space-between; } /* ---- Floating mobile WhatsApp button ------------------------------------- */ .wa-float { position: fixed; right: 1rem; bottom: 1rem; z-index: 120; display: none; width: 58px; height: 58px; border-radius: 999px; background: var(--wa); color: #fff; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(37,211,102,.4); } .wa-float:hover { color: #fff; } .wa-float svg { width: 30px; height: 30px; } /* ---- Reveal animation ---------------------------------------------------- */ [data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; } [data-reveal].is-visible { opacity: 1; transform: none; } @media (prefers-reduced-motion: reduce) { [data-reveal] { opacity: 1; transform: none; transition: none; } } /* ---- Prose (article pages) ----------------------------------------------- */ .prose { max-width: 72ch; } .prose h2 { margin-top: 2.25rem; } .prose h3 { margin-top: 1.75rem; } .prose ul { padding-left: 1.2rem; color: var(--ink-soft); } .prose li { margin-bottom: .4rem; } .split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; } .split--reverse > *:first-child { order: 2; } /* ---- Responsive ---------------------------------------------------------- */ @media (max-width: 900px) { .hero__grid, .split, .finance-box { grid-template-columns: 1fr; } .split--reverse > *:first-child { order: 0; } .grid--4 { grid-template-columns: repeat(2, 1fr); } .trustbar__grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem 1rem; } .footer__grid { grid-template-columns: 1fr 1fr; } } @media (max-width: 720px) { .nav__toggle { display: inline-flex; } .site-nav { margin-left: auto; } .brand__logo { height: 34px; } #site-menu { position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); padding: .5rem var(--gap) 1rem; display: none; } #site-menu.is-open { display: flex; } #site-menu li { border-top: 1px solid var(--line); } #site-menu a { display: block; padding: .9rem .25rem; } .header-cta { margin: .75rem 0 0; } .header-cta .btn { width: 100%; } .wa-float { display: inline-flex; } .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; } .hero .cta-row .btn-wa { width: 100%; } } @media (max-width: 460px) { .trustbar__grid { grid-template-columns: 1fr; } .footer__grid { grid-template-columns: 1fr; } }