/* AV Solutions: black and white, quiet, premium. No all-caps anywhere. */
:root {
  --ink: #0a0a0a;
  --ink-2: #3d3d3d;
  --muted: #6b6b6b;
  --line: #e7e7e7;
  --soft: #f6f6f5;
  --paper: #ffffff;
  --radius: 18px;
  --max: 1120px;
  --head: "Inter Tight", "Inter", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.6 var(--body); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3, h4 { font-family: var(--head); letter-spacing: -0.025em; line-height: 1.08; margin: 0; font-weight: 650; text-wrap: balance; }
p { margin: 0; }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .container { padding: 0 16px; } body { font-size: 16px; } }

/* Header */
.site-head { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.86); backdrop-filter: saturate(1.4) blur(12px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.site-head.scrolled { border-bottom-color: var(--line); }
.site-head .container { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 650 19px/1 var(--head); letter-spacing: -0.02em; }
.brand img { width: 34px; height: 34px; }
.head-nav { display: flex; align-items: center; gap: 22px; }
.head-link { text-decoration: none; color: var(--ink-2); font-size: 15px; }
.head-link:hover { color: var(--ink); }
@media (max-width: 720px) { .head-link { display: none; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 52px; padding: 0 26px; border-radius: 999px; border: 1px solid var(--ink); background: var(--ink); color: #fff; font: 600 16px/1.2 var(--body); text-decoration: none; cursor: pointer; transition: transform .15s, background .15s; text-align: center; }
.btn:hover { background: #262626; transform: translateY(-1px); }
.btn:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid #8a8a8a; outline-offset: 3px; }
.btn svg { flex: none; }
.btn-sm { min-height: 42px; padding: 0 18px; font-size: 14.5px; }
.btn-light { background: #fff; color: var(--ink); border-color: #fff; }
.btn-light:hover { background: #ececec; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--soft); }
@media (max-width: 600px) { .btn { width: 100%; padding: 0 18px; } .site-head .btn { width: auto; } }
/* Logo: black tile (av-logo.png) + "AV Solutions" wordmark. On phones the header shows the tile only. */
.brand-text { white-space: nowrap; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.site-foot .brand img { width: 26px; height: 26px; border-radius: 6px; }
.site-head .btn { white-space: nowrap; }
@media (max-width: 520px) {
  .site-head .container { height: 64px; }
  .site-head .brand-text { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .site-head .btn { min-height: 40px; padding: 0 16px; font-size: 13.5px; }
}

/* Hero */
.hero { padding: 88px 0 72px; }
.hero .kicker { color: var(--muted); font-size: 15px; margin-bottom: 20px; display: inline-flex; align-items: center; gap: 10px; }
.hero .kicker::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ink); }
.hero h1 { font-size: clamp(40px, 6.4vw, 76px); max-width: 15ch; }
.hero h1 .dim { color: #9a9a9a; }
.hero .lead { margin-top: 24px; font-size: clamp(18px, 2vw, 21px); color: var(--ink-2); max-width: 36em; }
.hero-actions { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero-meta { margin-top: 18px; color: var(--muted); font-size: 14.5px; }
@media (max-width: 600px) { .hero { padding: 48px 0 48px; } }

/* Offer card */
.offer { margin-top: 56px; display: grid; grid-template-columns: 1.3fr 1fr; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.offer-main { padding: 34px 36px; background: var(--ink); color: #fff; }
.offer-main p.label { color: #a3a3a3; font-size: 14.5px; margin-bottom: 12px; }
.offer-main .num { font: 650 clamp(28px, 3.6vw, 40px)/1.1 var(--head); letter-spacing: -0.025em; }
.offer-main .num span { color: #a3a3a3; }
.offer-side { padding: 30px 34px; display: flex; flex-direction: column; justify-content: center; gap: 10px; color: var(--ink-2); font-size: 15.5px; }
.offer-side a { color: var(--ink); }
@media (max-width: 760px) { .offer { grid-template-columns: 1fr; } .offer-main, .offer-side { padding: 26px 22px; } }

/* Sections */
.section { padding: 104px 0; }
.section.soft { background: var(--soft); }
.section.dark { background: var(--ink); color: #fff; }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head .eyebrow, .eyebrow { color: var(--muted); font-size: 15px; margin-bottom: 14px; }
.dark .eyebrow { color: #a3a3a3; }
.section-head h2, .h2 { font-size: clamp(32px, 4.4vw, 52px); }
.section-head p.sub { margin-top: 16px; color: var(--ink-2); font-size: 18px; }
@media (max-width: 600px) { .section { padding: 68px 0; } .section-head { margin-bottom: 32px; } }

/* Logos */
.logos-band { padding: 36px 0 8px; }
.logos-label { color: var(--muted); font-size: 14px; margin-bottom: 18px; text-align: center; }
.logos-track { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.logos-row { display: flex; gap: 56px; align-items: center; width: max-content; animation: marquee 40s linear infinite; }
.logos-row img { height: 34px; width: auto; filter: grayscale(1) contrast(1.1); opacity: .62; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .logos-row { animation: none; flex-wrap: wrap; width: auto; justify-content: center; } }

/* Problem / cards grid */
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (max-width: 900px) { .grid3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .grid3, .grid2 { grid-template-columns: 1fr; } }
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: #fff; }
.soft .card { border-color: #e2e2e0; }
.card .ico { width: 42px; height: 42px; border-radius: 12px; background: var(--ink); color: #fff; display: grid; place-items: center; margin-bottom: 20px; }
.card h3 { font-size: 21px; margin-bottom: 10px; }
.card p { color: var(--ink-2); font-size: 16px; }
.card .stat { font: 650 40px/1 var(--head); letter-spacing: -0.03em; margin-bottom: 10px; }

/* Steps */
.steps-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: s; }
.steps-list li { counter-increment: s; border-top: 1px solid #333; padding-top: 22px; }
.steps-list li::before { content: counter(s, decimal-leading-zero); display: block; color: #8c8c8c; font: 500 15px/1 var(--body); margin-bottom: 16px; }
.steps-list h3 { font-size: 22px; margin-bottom: 10px; }
.steps-list p { color: #bdbdbd; font-size: 16px; }
@media (max-width: 760px) { .steps-list { grid-template-columns: 1fr; gap: 28px; } }

/* About */
.about-grid { display: grid; grid-template-columns: 380px 1fr; gap: 64px; align-items: center; }
.founder { margin: 0; }
.founder img { border-radius: var(--radius); aspect-ratio: 1; object-fit: cover; width: 100%; filter: grayscale(1); }
.founder figcaption { margin-top: 14px; font-size: 15px; color: var(--muted); }
.founder figcaption b { color: var(--ink); font-weight: 600; margin-right: 6px; }
.about-grid h2 { font-size: clamp(30px, 3.8vw, 44px); margin-bottom: 18px; }
.about-grid p.body { color: var(--ink-2); font-size: 17.5px; }
.facts { list-style: none; padding: 0; margin: 32px 0; display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: var(--radius); }
.facts li { padding: 20px 22px; }
.facts li + li { border-left: 1px solid var(--line); }
.facts b { display: block; font: 650 30px/1 var(--head); letter-spacing: -0.03em; margin-bottom: 8px; }
.facts span { color: var(--muted); font-size: 14.5px; line-height: 1.35; display: block; }
@media (max-width: 860px) { .about-grid { grid-template-columns: 1fr; gap: 32px; } .founder { max-width: 320px; } }
@media (max-width: 520px) { .facts { grid-template-columns: 1fr; } .facts li + li { border-left: 0; border-top: 1px solid var(--line); } }

/* Guarantee */
.guarantee { border: 1px solid var(--line); border-radius: var(--radius); padding: 40px; display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; background: #fff; }
.guarantee h2 { font-size: clamp(28px, 3.4vw, 40px); }
.guarantee ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 14px; color: var(--ink-2); font-size: 16px; }
.guarantee li { padding-left: 26px; position: relative; }
.guarantee li::before { content: ""; position: absolute; left: 0; top: 9px; width: 12px; height: 2px; background: var(--ink); }
.guarantee .fine { margin-top: 18px; color: var(--muted); font-size: 14px; }
@media (max-width: 820px) { .guarantee { grid-template-columns: 1fr; padding: 26px 22px; gap: 22px; } }

/* Booking */
.book-wrap { display: grid; grid-template-columns: 1fr 1.15fr; gap: 56px; align-items: start; }
.book-copy h2 { font-size: clamp(32px, 4.2vw, 50px); margin-bottom: 18px; }
.book-copy p { color: #c4c4c4; font-size: 18px; }
.book-copy ul { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 12px; color: #e5e5e5; }
.book-copy li { display: flex; gap: 12px; align-items: flex-start; }
.book-copy li svg { flex: none; margin-top: 4px; }
.book-card { background: #fff; color: var(--ink); border-radius: 22px; padding: 32px; }
.book-card h3 { font-size: 24px; margin-bottom: 6px; }
.book-card .sub { color: var(--muted); font-size: 15.5px; margin-bottom: 18px; }
.steps { display: flex; align-items: center; gap: 12px; font-size: 13.5px; color: var(--muted); margin-bottom: 22px; }
.steps b { font-weight: 600; color: var(--ink); white-space: nowrap; }
.steps .bar { flex: 1; height: 4px; border-radius: 4px; background: var(--line); overflow: hidden; }
.steps .bar i { display: block; height: 100%; width: 50%; background: var(--ink); transition: width .3s; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .row2 { grid-template-columns: 1fr; gap: 0; } }
.field { display: flex; flex-direction: column; margin-bottom: 14px; }
.field label { font-size: 14px; font-weight: 500; margin-bottom: 6px; }
.field input { height: 50px; border: 1px solid #d6d6d6; border-radius: 12px; padding: 0 14px; font: 400 16px var(--body); color: var(--ink); background: #fff; }
.field input:focus { border-color: var(--ink); outline: none; box-shadow: 0 0 0 3px rgba(0,0,0,.08); }
.field.bad input { border-color: #b42318; }
.field .err { color: #b42318; font-size: 13px; min-height: 0; margin-top: 4px; }
.book-card .btn { width: 100%; margin-top: 6px; }
.consent { margin-top: 14px; font-size: 12.5px; line-height: 1.5; color: var(--muted); }
.cal-frame { width: 100%; height: 700px; border: 0; border-radius: 12px; }
.back-link { margin-top: 12px; background: none; border: 0; padding: 6px 0; font: 500 14.5px var(--body); color: var(--ink-2); cursor: pointer; }
.book-trust { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 18px; color: #a3a3a3; font-size: 14px; }
@media (max-width: 900px) { .book-wrap { grid-template-columns: 1fr; gap: 32px; } .book-card { padding: 24px 18px; } }

/* FAQ */
.faq { max-width: 820px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 22px 40px 22px 0; font: 600 18px/1.35 var(--head); letter-spacing: -0.01em; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font: 300 26px/1 var(--body); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 40px 22px 0; color: var(--ink-2); }

/* CTA band */
.cta-band { text-align: center; }
.cta-band h2 { font-size: clamp(32px, 4.6vw, 56px); max-width: 16ch; margin: 0 auto 26px; }

/* Footer */
.site-foot { border-top: 1px solid var(--line); padding: 36px 0 44px; font-size: 14px; color: var(--muted); }
.site-foot .container { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; justify-content: space-between; }
.site-foot nav { display: flex; gap: 20px; }
.site-foot a { text-decoration: none; }
.site-foot a:hover { color: var(--ink); }
.site-foot .brand { font-size: 16px; color: var(--ink); }
.site-foot .brand img { width: 26px; height: 26px; }
.disclaimer { flex-basis: 100%; font-size: 13px; color: #8f8f8f; }

/* Reveal */
.js [data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.js [data-reveal].is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js [data-reveal] { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* Legal pages */
.legal { padding: 64px 0 96px; max-width: 760px; }
.legal h1 { font-size: 40px; margin-bottom: 24px; }
.legal h2 { font-size: 22px; margin: 32px 0 10px; }
.legal p, .legal li { color: var(--ink-2); margin-bottom: 12px; }