/* OnePC Technologies LLC — design system
   GreenVolt-inspired: light, airy, premium. Rendered in the OnePC brand.
   Pure CSS, mobile-first, WCAG AA. Inter from Google Fonts. */

:root {
  /* --- Brand palette --- */
  --teal: #16DBB5;            /* primary accent */
  --teal-strong: #0FBF9D;     /* hover / stronger fills */
  --teal-ink: #0A7A64;        /* AA-readable teal for small text / links on white */
  --teal-tint: #E6FAF4;       /* soft teal wash for bands & badges */
  --navy: #2d4965;            /* dark sections / secondary */
  --navy-deep: #223850;       /* deeper navy for gradients */
  --cream: #FCF8EF;           /* warm light background */
  --ink: #1E1D1E;             /* headings & text */
  --body-ink: #41434A;        /* body copy (softer than ink, AA on light) */
  --muted: #6B6E78;           /* muted text (darkened from brand grey for AA) */
  --grey: #9B9B9B;            /* brand grey — borders / faint UI only */
  --line: #E7E3D8;            /* hairline borders on cream */
  --line-soft: #EFEBE1;
  --white: #FFFFFF;

  /* --- Semantic tokens --- */
  --bg: var(--cream);
  --bg-alt: #FFFFFF;
  --bg-tint: var(--teal-tint);
  --card: #FFFFFF;
  --primary: var(--teal);
  --accent-ink: var(--teal-ink);

  --radius-xl: 30px;
  --radius: 24px;
  --radius-sm: 16px;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(45, 73, 101, .05), 0 6px 18px rgba(45, 73, 101, .06);
  --shadow-md: 0 14px 40px rgba(45, 73, 101, .12);
  --shadow-lg: 0 30px 70px rgba(45, 73, 101, .16);

  --container: 1180px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --focus: 0 0 0 3px rgba(10, 122, 100, .55);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--body-ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -.02em;
  margin: 0 0 .5em;
}
h1 { font-size: clamp(2.1rem, 5.2vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.5rem); }
h3 { font-size: 1.28rem; letter-spacing: -.01em; }
h4 { font-size: 1rem; }
p { margin: 0 0 1em; }

a { color: var(--teal-ink); text-decoration-color: color-mix(in srgb, var(--teal-ink) 40%, transparent); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }

img, svg { max-width: 100%; height: auto; }

:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 8px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 20px; }

.skip-link {
  position: absolute; left: 12px; top: -56px; z-index: 1000;
  background: var(--navy); color: #fff; padding: 11px 18px;
  border-radius: 12px; font-weight: 600; transition: top .15s;
}
.skip-link:focus { top: 12px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5em; justify-content: center;
  font-weight: 650; font-size: 1rem; line-height: 1.1; min-height: 46px;
  padding: .75em 1.4em; border-radius: var(--radius-pill); border: 1.5px solid transparent;
  cursor: pointer; text-decoration: none;
  transition: transform .12s ease, background .16s, box-shadow .16s, border-color .16s, color .16s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--teal); color: #09231D; border-color: var(--teal); box-shadow: 0 6px 18px rgba(22, 219, 181, .28); }
.btn-primary:hover { background: var(--teal-strong); border-color: var(--teal-strong); box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--navy); border-color: color-mix(in srgb, var(--navy) 30%, transparent); }
.btn-ghost:hover { background: var(--teal-tint); border-color: var(--teal); color: var(--teal-ink); }
.btn-light { background: #fff; color: var(--navy); border-color: #fff; }
.btn-light:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
/* Base outline button is dark-on-light (works on cream heroes); overridden inside dark bands below */
.btn-outline-light { background: transparent; color: var(--navy); border-color: color-mix(in srgb, var(--navy) 35%, transparent); }
.btn-outline-light:hover { background: var(--navy); color: #fff; border-color: var(--navy); }

/* ---------- Header / floating pill nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  padding-top: 14px; padding-bottom: 6px;
  background: linear-gradient(var(--cream) 62%, transparent);
}
.nav {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  min-height: 58px; padding: .4rem .5rem .4rem 1.1rem;
  background: color-mix(in srgb, #fff 80%, transparent);
  backdrop-filter: saturate(150%) blur(14px);
  -webkit-backdrop-filter: saturate(150%) blur(14px);
  border: 1px solid rgba(45, 73, 101, .1);
  border-radius: 22px;
  box-shadow: 0 8px 30px rgba(45, 73, 101, .09);
}
.brand { display: inline-flex; align-items: center; gap: .55rem; text-decoration: none; flex: none; }
.brand-logo { height: 38px; width: auto; display: block; }
.nav-toggle {
  display: none; align-items: center; justify-content: center;
  width: 46px; height: 46px; border: 1px solid var(--line); background: #fff;
  border-radius: 14px; cursor: pointer; color: var(--navy); flex: none;
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-menu { display: flex; align-items: center; gap: .25rem; }
.nav-menu ul { display: flex; align-items: center; gap: .08rem; list-style: none; margin: 0; padding: 0; flex-wrap: nowrap; }
.nav-menu a.navlink {
  display: inline-flex; align-items: center; min-height: 40px; padding: .4em .62em;
  border-radius: 12px; color: var(--navy); text-decoration: none;
  font-weight: 550; font-size: .92rem; white-space: nowrap;
}
.nav-menu a.navlink:hover { background: var(--teal-tint); color: var(--teal-ink); }
.nav-menu a.navlink[aria-current="page"] { background: var(--teal-tint); color: var(--teal-ink); font-weight: 650; }
.nav-cta { margin-left: .35rem; }
.nav-cta .btn { min-height: 44px; padding-block: .6em; }

@media (max-width: 1180px) {
  .nav-toggle { display: inline-flex; }
  .nav { position: relative; }
  .nav-menu {
    position: absolute; top: calc(100% + 10px); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: .2rem;
    background: #fff; border: 1px solid var(--line); border-radius: 20px;
    padding: 12px; box-shadow: var(--shadow-md); display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu ul { flex-direction: column; align-items: stretch; gap: .12rem; }
  .nav-menu a.navlink { min-height: 46px; padding: .7em .8em; font-size: 1.02rem; }
  .nav-cta { margin: .4rem 0 .2rem; }
  .nav-cta .btn { width: 100%; }
}

/* ---------- Section rhythm ---------- */
section { padding-block: clamp(3rem, 7vw, 6rem); }
.section-alt { background: var(--bg-alt); }
.section-tint { background: var(--bg-tint); }
.narrow { max-width: 780px; }
.center { text-align: center; }
.center .lede { margin-inline: auto; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  font-size: .76rem; color: var(--teal-ink); margin-bottom: 1rem;
}
.eyebrow::before { content: ""; width: 1.7rem; height: 2px; background: var(--teal); border-radius: 2px; }
.center .eyebrow, .cta-band .eyebrow { justify-content: center; }
.lede { font-size: clamp(1.1rem, 1.6vw, 1.28rem); color: var(--muted); line-height: 1.6; }

/* ---------- Hero ---------- */
.hero { background: var(--cream); color: var(--ink); position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; z-index: 0; inset: auto -10% 40% auto; width: 46%; aspect-ratio: 1;
  background: radial-gradient(circle at 70% 30%, color-mix(in srgb, var(--teal) 24%, transparent), transparent 62%);
  filter: blur(10px); pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero h1 { color: var(--ink); }
.hero .lede { color: var(--muted); }

.hero-head { max-width: 780px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }
.hero-trust {
  display: flex; flex-wrap: wrap; gap: .6rem 1.6rem; margin-top: 1.8rem;
  list-style: none; padding: 0; color: var(--ink); font-size: .95rem; font-weight: 550;
}
.hero-trust li { display: flex; align-items: center; gap: .5rem; }
.hero-trust svg { flex: none; color: var(--teal-ink); }

/* Home hero showcase: big rounded image + content */
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(1.5rem, 3vw, 2.8rem); align-items: center; margin-top: clamp(2rem, 4vw, 3.2rem); }
.hero-media { position: relative; }
.hero-media img {
  width: 100%; aspect-ratio: 16 / 10; object-fit: cover; display: block;
  border-radius: var(--radius-xl); box-shadow: var(--shadow-lg);
  border: 1px solid var(--line-soft);
  background: linear-gradient(135deg, #eafaf5, #e7edf3 55%, #f4f6f8);
}
.hero-card {
  margin-top: clamp(1.6rem, 3vw, 2.4rem);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.4rem, 2.5vw, 2rem); box-shadow: var(--shadow-sm);
}
.hero-card h2 { font-size: 1.15rem; color: var(--ink); margin-bottom: 1rem; }
.hero-card ul { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: .7rem 1.6rem; }
.hero-card li { position: relative; padding-left: 1.7rem; color: var(--body-ink); font-size: .98rem; }
.hero-card li::before {
  content: ""; position: absolute; left: 0; top: .3em; width: 1.1rem; height: 1.1rem; border-radius: 50%;
  background: var(--teal);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/78% no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/78% no-repeat;
}
@media (max-width: 880px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-media { order: -1; }
  .hero-card ul { grid-template-columns: 1fr; }
}

/* ---------- Grids & cards ---------- */
.grid { display: grid; gap: 1.3rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.4rem, 2.4vw, 1.9rem); box-shadow: var(--shadow-sm); height: 100%;
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--teal) 45%, var(--line)); }
.card h3 { margin-top: .5rem; }
.card p:last-child { margin-bottom: 0; }
.card.link-card { display: flex; flex-direction: column; }
.card .card-link { margin-top: auto; font-weight: 650; text-decoration: none; display: inline-flex; align-items: center; gap: .4em; color: var(--teal-ink); }
.card .card-link::after { content: "\2192"; transition: transform .14s; }
.card .card-link:hover::after { transform: translateX(4px); }

.icon-badge {
  display: inline-flex; align-items: center; justify-content: center; width: 52px; height: 52px;
  border-radius: 16px; background: var(--teal-tint); color: var(--teal-ink); border: 1px solid color-mix(in srgb, var(--teal) 30%, var(--line));
}
.icon-badge svg { width: 26px; height: 26px; }

/* ---------- Process steps ---------- */
.steps { list-style: none; counter-reset: step; padding: 0; margin: 0; display: grid; gap: 1.1rem; }
.steps.cols { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 680px) { .steps.cols { grid-template-columns: 1fr; } }
.steps li {
  position: relative; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.4rem 1.4rem 1.4rem 4rem; box-shadow: var(--shadow-sm);
}
.steps li::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 1.2rem; top: 1.3rem; width: 2.1rem; height: 2.1rem;
  background: var(--teal); color: #09231D; border-radius: 50%; display: grid; place-items: center;
  font-weight: 800; font-size: 1rem;
}
.steps li strong { color: var(--ink); display: block; margin-bottom: .25rem; font-size: 1.05rem; }

/* ---------- Checklist ---------- */
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: .65rem; }
.checklist li { position: relative; padding-left: 2rem; }
.checklist li::before {
  content: ""; position: absolute; left: 0; top: .3em; width: 1.3rem; height: 1.3rem;
  border-radius: 50%; background: var(--teal);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/78% no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/78% no-repeat;
}

/* ---------- Pricing ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.3rem; }
@media (max-width: 820px) { .price-grid { grid-template-columns: 1fr; } }
.price-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(1.5rem, 2.4vw, 2rem); box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.price-card.featured { border-color: var(--teal); box-shadow: var(--shadow-md); position: relative; }
.price-card.featured .tag { position: absolute; top: -.85rem; right: 1.2rem; background: var(--teal); color: #09231D; font-size: .72rem; font-weight: 800; padding: .3em .8em; border-radius: 999px; letter-spacing: .04em; text-transform: uppercase; }
.price { font-size: 2.4rem; font-weight: 800; color: var(--teal-ink); line-height: 1.05; margin: .4rem 0; letter-spacing: -.02em; }
.price span { font-size: .95rem; font-weight: 550; color: var(--muted); }
.price-card ul { list-style: none; padding: 0; margin: 1rem 0 1.4rem; display: grid; gap: .55rem; }
.price-card ul li { padding-left: 1.7rem; position: relative; font-size: .97rem; }
.price-card ul li::before { content: "\2713"; position: absolute; left: 0; color: var(--teal-ink); font-weight: 800; }
.price-card .btn { margin-top: auto; }
.price-note { font-size: .9rem; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq { display: grid; gap: .8rem; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0 1.3rem; box-shadow: var(--shadow-sm); }
.faq summary { cursor: pointer; font-weight: 650; color: var(--ink); padding: 1.15rem 0; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem; min-height: 28px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.5rem; color: var(--teal-ink); line-height: 1; transition: transform .18s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details > p { margin: 0 0 1.1rem; color: var(--body-ink); }

/* ---------- CTA band (dark navy) ---------- */
.cta-band { background: linear-gradient(130deg, var(--navy-deep), var(--navy) 55%, #37597b); color: #fff; border-radius: var(--radius-xl); padding: clamp(2rem, 5vw, 3.4rem); text-align: center; position: relative; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; inset: -40% 55% 40% -20%; background: radial-gradient(circle, color-mix(in srgb, var(--teal) 30%, transparent), transparent 60%); pointer-events: none; }
.cta-band > * { position: relative; }
.cta-band h2 { color: #fff; }
.cta-band p { color: rgba(255,255,255,.88); max-width: 660px; margin-inline: auto; }
.cta-actions { display: flex; flex-wrap: wrap; gap: .8rem; justify-content: center; margin-top: 1.5rem; }
.cta-band .btn-outline-light { color: #fff; border-color: rgba(255,255,255,.6); }
.cta-band .btn-outline-light:hover { background: rgba(255,255,255,.14); border-color: #fff; color: #fff; }

/* ---------- Breadcrumbs ---------- */
.crumbs { font-size: .9rem; color: var(--muted); padding-top: 1.6rem; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; padding: 0; margin: 0; }
.crumbs li::after { content: "/"; margin-left: .4rem; color: var(--grey); }
.crumbs li:last-child::after { content: ""; }
.crumbs a { text-decoration: none; color: var(--teal-ink); }

/* ---------- Definition / fact rows ---------- */
.facts { list-style: none; padding: 0; margin: 0; display: grid; gap: .7rem; }
.facts li { display: flex; gap: .7rem; }
.facts b { color: var(--ink); min-width: 96px; display: inline-block; }

.prose h2 { margin-top: 1.8em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.4em; }
.prose ul { padding-left: 1.2rem; }
.prose li { margin-bottom: .45rem; }

/* ---------- Contact form ---------- */
.form-grid { display: grid; gap: 1.1rem; }
.field label { font-weight: 600; color: var(--ink); display: block; margin-bottom: .4rem; }
.field input, .field textarea, .field select {
  width: 100%; padding: .8em .9em; border: 1px solid var(--line); border-radius: 14px;
  background: #fff; color: var(--ink); font: inherit; min-height: 46px;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--teal); box-shadow: var(--focus); outline: none; }
.field .hint { font-size: .85rem; color: var(--muted); margin-top: .35rem; }
.form-note { font-size: .9rem; color: var(--muted); }
fieldset { border: 0; padding: 0; margin: 0; }

/* ---------- Footer (dark navy) ---------- */
.site-footer { background: var(--navy-deep); color: rgba(255,255,255,.82); margin-top: 0; }
.site-footer a { color: rgba(255,255,255,.82); text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 1.8rem; padding-block: clamp(2.6rem, 5vw, 3.6rem) 1.8rem; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 { color: #fff; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; margin-bottom: .9rem; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: .5rem; }
.footer-brand .brand { color: #fff; font-weight: 800; font-size: 1.18rem; letter-spacing: -.02em; gap: .5rem; }
.footer-brand .brand b { color: var(--teal); font-weight: 800; }
.footer-brand .brand .mark { flex: none; }
.footer-brand p { color: rgba(255,255,255,.72); font-size: .95rem; margin-top: .9rem; max-width: 38ch; }
.footer-contact address { font-style: normal; display: grid; gap: .45rem; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); padding-block: 1.2rem; font-size: .85rem; color: rgba(255,255,255,.62); display: flex; flex-wrap: wrap; gap: .6rem 1.4rem; justify-content: space-between; }

/* ---------- Utility ---------- */
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; }
.stack > * + * { margin-top: 1rem; }
.pill { display: inline-block; background: #fff; color: var(--navy); border: 1px solid var(--line); border-radius: 999px; padding: .4em .95em; font-size: .88rem; font-weight: 600; margin: .25rem .25rem 0 0; }
.big-404 { font-size: clamp(4.5rem, 20vw, 10rem); font-weight: 800; color: var(--teal); line-height: 1; margin: 0; letter-spacing: -.04em; }

/* ---------- Responsive fine-tuning ---------- */
@media (min-width: 1500px) {
  :root { --container: 1240px; }
  body { font-size: 17.5px; }
}
@media (pointer: coarse) {
  .footer-grid a, .site-footer address a { display: inline-block; padding-block: 3px; }
}
@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
  .card:hover, .btn:hover { transform: none; }
}