/* =========================================================
   PRO VOLT SYSTEMS — shared stylesheet for service & blog pages
   Mirrors the design tokens used on index.html (homepage keeps its
   own inline copy so it is never broken by changes here).
   ========================================================= */
:root {
  --bg:        #090b10;
  --bg2:       #0e1118;
  --bg3:       #13161f;
  --surface:   #181c27;
  --border:    rgba(255,255,255,0.07);
  --blue:      #1a8fff;
  --blue-glow: rgba(26,143,255,0.35);
  --blue-dim:  rgba(26,143,255,0.12);
  --yellow:    #f5c400;
  --yellow-dim:rgba(245,196,0,0.12);
  --text:      #e8eaf0;
  --muted:     #8a90a0;
  --radius:    8px;
  --radius-lg: 16px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1,h2,h3,h4 { font-family: 'Oswald', sans-serif; line-height: 1.15; letter-spacing: 0.02em; }
section { position: relative; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 820px; margin: 0 auto; padding: 0 24px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius);
  font-family: 'Oswald', sans-serif; font-size: 17px; font-weight: 600;
  letter-spacing: 0.04em; cursor: pointer; border: none;
  transition: transform 0.15s, box-shadow 0.15s, opacity 0.15s;
  text-transform: uppercase;
}
.btn:hover { transform: translateY(-2px); opacity: 0.93; }
.btn:active { transform: translateY(0); }
.btn-yellow { background: var(--yellow); color: #080b10; box-shadow: 0 4px 24px rgba(245,196,0,0.35); }
.btn-yellow:hover { box-shadow: 0 6px 32px rgba(245,196,0,0.5); }
.btn-blue { background: var(--blue); color: #fff; box-shadow: 0 4px 24px var(--blue-glow); }
.btn-outline { background: transparent; color: var(--text); border: 1.5px solid rgba(255,255,255,0.25); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }

.tag {
  display: inline-block;
  padding: 4px 14px; border-radius: 100px;
  font-size: 12px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase;
  background: var(--blue-dim); color: var(--blue);
  border: 1px solid rgba(26,143,255,0.2);
  margin-bottom: 16px;
}
.divider { width: 56px; height: 3px; background: var(--blue); margin: 16px 0 0; border-radius: 2px; }

/* ---------- navbar (shared) ---------- */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000; padding: 0 24px;
  background: rgba(9,11,16,0.85); backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto; height: 70px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav-logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-logo img { height: 44px; width: auto; }
.nav-logo-text { font-family: 'Oswald', sans-serif; font-size: 20px; font-weight: 700; letter-spacing: 0.04em; }
.nav-logo-text span { color: var(--blue); }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a {
  font-size: 14px; font-weight: 500; color: var(--muted);
  letter-spacing: 0.04em; text-transform: uppercase; transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--blue); }
.nav-right { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.nav-phone {
  font-family: 'Oswald', sans-serif; font-size: 18px; font-weight: 600;
  color: var(--text); letter-spacing: 0.02em; transition: color 0.2s;
}
.nav-phone:hover { color: var(--yellow); }
.nav-btn { padding: 10px 22px; font-size: 14px; }
.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.burger span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all 0.3s; }
.mobile-menu {
  display: none; position: fixed; top: 70px; left: 0; right: 0; z-index: 999;
  background: var(--bg2); border-bottom: 1px solid var(--border);
  padding: 24px; flex-direction: column; gap: 20px;
}
.mobile-menu a {
  font-family: 'Oswald', sans-serif; font-size: 20px; font-weight: 500;
  color: var(--text); text-transform: uppercase; letter-spacing: 0.04em;
}
.mobile-menu.open { display: flex; }

/* ---------- inner-page hero ---------- */
.page-hero {
  padding: 130px 0 60px;
  background:
    radial-gradient(ellipse 60% 60% at 75% 0%, rgba(26,143,255,0.12) 0%, transparent 60%),
    linear-gradient(160deg, #090b10 0%, #0c1020 100%);
  border-bottom: 1px solid var(--border);
}
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 20px; display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.breadcrumb a { color: var(--muted); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb span { color: var(--blue); }
.page-hero h1 {
  font-size: clamp(30px, 5vw, 52px); font-weight: 700;
  text-transform: uppercase; line-height: 1.08; margin-bottom: 18px; max-width: 880px;
}
.page-hero h1 .accent { color: var(--blue); }
.page-hero h1 .accent-y { color: var(--yellow); }
.page-hero .lead { font-size: 18px; color: var(--muted); max-width: 680px; text-wrap: pretty; }
.page-hero .hero-ctas { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }

/* ---------- generic section ---------- */
.section { padding: 72px 0; }
.section.alt { background: var(--bg2); }
.section h2 { font-size: clamp(26px, 3.5vw, 38px); text-transform: uppercase; margin-bottom: 14px; }
.section h3 { font-size: 22px; text-transform: uppercase; margin: 28px 0 12px; }
.section p { color: var(--muted); margin-bottom: 16px; text-wrap: pretty; }
.section ul.bullets { display: flex; flex-direction: column; gap: 12px; margin: 18px 0; }
.section ul.bullets li { display: flex; align-items: flex-start; gap: 12px; color: var(--text); }
.section ul.bullets li::before {
  content: '✓'; color: var(--blue); font-weight: 700; flex-shrink: 0;
  margin-top: 1px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--blue-dim); border: 1px solid rgba(26,143,255,0.3);
  display: flex; align-items: center; justify-content: center; font-size: 12px;
}

/* ---------- subtype / feature cards ---------- */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 8px; }
.cards-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.info-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px 26px;
  transition: border-color 0.25s, transform 0.25s;
}
.info-card:hover { border-color: rgba(26,143,255,0.3); transform: translateY(-3px); }
.info-card h3 { font-size: 18px; margin: 0 0 10px; text-transform: uppercase; }
.info-card p { font-size: 14px; color: var(--muted); margin: 0; line-height: 1.7; }
.info-card .card-icon {
  width: 48px; height: 48px; background: var(--blue-dim); border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center; margin-bottom: 16px; font-size: 22px;
}

/* ---------- price / orientation table ---------- */
.price-table { width: 100%; border-collapse: collapse; margin: 8px 0 12px; font-size: 15px; }
.price-table th, .price-table td {
  text-align: left; padding: 14px 16px; border-bottom: 1px solid var(--border);
}
.price-table thead th {
  font-family: 'Oswald', sans-serif; text-transform: uppercase; font-size: 13px;
  letter-spacing: 0.04em; color: var(--muted); font-weight: 600;
}
.price-table td { color: var(--text); }
.price-table td:last-child { color: var(--yellow); font-weight: 600; white-space: nowrap; }
.price-note { font-size: 13px; color: var(--muted); margin-top: 10px; }

/* ---------- guarantee band ---------- */
.guarantee {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 8px;
}
.guarantee .g-item { text-align: center; padding: 24px 18px; background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.guarantee .g-num { font-family: 'Oswald', sans-serif; font-size: 40px; font-weight: 700; color: var(--blue); line-height: 1; }
.guarantee .g-num.y { color: var(--yellow); }
.guarantee .g-item p { font-size: 13px; margin: 8px 0 0; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: border-color 0.25s; }
.faq-item.open { border-color: rgba(26,143,255,0.3); }
.faq-q {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 20px 22px; cursor: pointer;
  font-family: 'Oswald', sans-serif; font-size: 16px; font-weight: 500;
  text-transform: uppercase; letter-spacing: 0.02em; user-select: none;
}
.faq-arrow { flex-shrink: 0; width: 24px; height: 24px; border-radius: 50%; background: var(--blue-dim); display: flex; align-items: center; justify-content: center; transition: transform 0.3s, background 0.3s; }
.faq-arrow svg { width: 12px; height: 12px; stroke: var(--blue); fill: none; stroke-width: 2.5; }
.faq-item.open .faq-arrow { transform: rotate(180deg); background: var(--blue); }
.faq-item.open .faq-arrow svg { stroke: #fff; }
.faq-a { display: none; padding: 0 22px 20px; font-size: 15px; color: var(--muted); line-height: 1.75; text-wrap: pretty; }
.faq-item.open .faq-a { display: block; }

/* ---------- CTA band ---------- */
.cta-band { padding: 64px 0; background: var(--bg3); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); text-align: center; }
.cta-band h2 { font-size: clamp(26px, 3.5vw, 40px); text-transform: uppercase; margin-bottom: 14px; }
.cta-band p { color: var(--muted); max-width: 560px; margin: 0 auto 28px; }
.cta-band .hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- lead form ---------- */
.form-wrap { max-width: 640px; margin: 0 auto; }
.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 40px 36px; }
.contact-form h3 { font-size: 22px; text-transform: uppercase; margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.form-group label { font-size: 12px; font-weight: 500; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; }
.form-group input, .form-group select, .form-group textarea {
  background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 16px; color: var(--text); font-family: 'Inter', sans-serif; font-size: 15px;
  outline: none; transition: border-color 0.2s; appearance: none; -webkit-appearance: none;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-dim); }
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%238a90a0' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center; padding-right: 36px;
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group.full { grid-column: 1/-1; }
.form-hp { display: none !important; visibility: hidden; }
.cf-turnstile { width: max-content; max-width: 100%; margin: 4px auto 18px; }
.form-note { font-size: 12px; color: var(--muted); margin-bottom: 20px; }
.form-note a { color: var(--blue); }
.form-submit { width: 100%; justify-content: center; font-size: 16px; padding: 16px; }
.form-status { display: none; padding: 14px 18px; border-radius: var(--radius); font-size: 14px; font-weight: 500; margin-top: 16px; }
.form-status.success { background: rgba(34,197,94,0.15); color: #22c55e; border: 1px solid rgba(34,197,94,0.3); }
.form-status.error { background: rgba(239,68,68,0.12); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }

/* ---------- article / prose ---------- */
.prose { font-size: 17px; color: #cfd3de; }
.prose p { margin-bottom: 20px; text-wrap: pretty; }
.prose h2 { font-size: clamp(24px, 3vw, 32px); color: var(--text); text-transform: none; margin: 40px 0 16px; letter-spacing: 0; }
.prose h3 { font-size: 21px; color: var(--text); text-transform: none; margin: 30px 0 12px; letter-spacing: 0; }
.prose ul, .prose ol { margin: 0 0 20px 0; padding-left: 0; display: flex; flex-direction: column; gap: 10px; }
.prose ul li { display: flex; align-items: flex-start; gap: 12px; }
.prose ul li::before { content: '▸'; color: var(--blue); flex-shrink: 0; font-size: 18px; line-height: 1.4; }
.prose ol { counter-reset: li; }
.prose ol li { counter-increment: li; display: flex; align-items: flex-start; gap: 14px; }
.prose ol li::before {
  content: counter(li); flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%;
  background: var(--blue-dim); border: 1px solid rgba(26,143,255,0.3); color: var(--blue);
  font-family: 'Oswald', sans-serif; font-weight: 600; font-size: 14px;
  display: flex; align-items: center; justify-content: center; margin-top: 1px;
}
.prose strong { color: var(--text); }
.prose a { color: var(--blue); border-bottom: 1px solid rgba(26,143,255,0.3); }
.prose a:hover { color: var(--yellow); }
.prose blockquote {
  border-left: 3px solid var(--blue); background: var(--bg3);
  padding: 16px 22px; border-radius: 0 var(--radius) var(--radius) 0;
  margin: 0 0 22px; color: var(--text);
}
.callout {
  background: var(--blue-dim); border: 1px solid rgba(26,143,255,0.25);
  border-radius: var(--radius-lg); padding: 22px 24px; margin: 26px 0;
}
.callout strong { color: var(--blue); display: block; margin-bottom: 6px; font-family: 'Oswald', sans-serif; text-transform: uppercase; letter-spacing: 0.03em; font-size: 14px; }
.callout p { margin: 0; color: var(--text); }
.article-meta { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--muted); margin-top: 18px; }
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }

/* ---------- post / service cards lists ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.post-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.post-card:hover { transform: translateY(-4px); border-color: rgba(26,143,255,0.3); box-shadow: 0 16px 48px rgba(0,0,0,0.4); }
.post-card .post-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.post-card .tag { font-size: 11px; }
.post-card h3 { font-size: 19px; margin-bottom: 10px; text-transform: none; line-height: 1.25; }
.post-card p { font-size: 14px; color: var(--muted); margin-bottom: 18px; flex: 1; }
.post-card .service-link, .read-more {
  display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500;
  color: var(--blue); letter-spacing: 0.04em; text-transform: uppercase; transition: gap 0.2s;
}
.post-card .service-link:hover, .read-more:hover { gap: 10px; }

/* ---------- floating CTA + footer (shared) ---------- */
#floating-cta { position: fixed; bottom: 32px; right: 32px; z-index: 900; display: flex; flex-direction: column; gap: 12px; align-items: flex-end; }
.fcta-btn { width: 56px; height: 56px; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 24px rgba(0,0,0,0.5); cursor: pointer; transition: transform 0.2s; font-size: 22px; }
.fcta-btn:hover { transform: scale(1.08); }
.fcta-tg { background: #0088cc; }
.fcta-wa { background: #25d366; }
.fcta-ph { background: var(--yellow); color: #080b10; }

footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 60px 0 32px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; margin-bottom: 48px; }
.footer-brand p { font-size: 14px; color: var(--muted); margin-top: 16px; max-width: 300px; text-wrap: pretty; }
.footer-col h4 { font-family: 'Oswald', sans-serif; font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 16px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: 14px; color: var(--text); transition: color 0.2s; }
.footer-col ul a:hover { color: var(--blue); }
.footer-bottom { border-top: 1px solid var(--border); padding-top: 24px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: var(--muted); }

/* ---------- blog & article polish ---------- */
/* business-focused tag + featured cards */
.tag-biz { background: var(--yellow-dim); color: var(--yellow); border-color: rgba(245,196,0,0.3); }
.post-card.featured { border-color: rgba(245,196,0,0.32); }
.post-card.featured::before {
  content: ''; display: block; height: 3px; flex-shrink: 0;
  background: linear-gradient(90deg, var(--yellow), var(--blue));
}
.post-card.featured:hover { border-color: rgba(245,196,0,0.6); }
.post-card h3 { transition: color 0.2s; }
.post-card:hover h3 { color: var(--blue); }

/* scannable article headings — accent bar to the left of each H2 */
.prose h2 { position: relative; padding-left: 18px; }
.prose h2::before {
  content: ''; position: absolute; left: 0; top: 6px; bottom: 6px;
  width: 4px; border-radius: 2px;
  background: linear-gradient(180deg, var(--blue), var(--yellow));
}

/* price / orientation tables as a rounded card with zebra + hover */
.price-table { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.price-table thead { background: var(--bg3); }
.price-table tbody tr { transition: background 0.15s; }
.price-table tbody tr:nth-child(even) { background: rgba(255,255,255,0.02); }
.price-table tbody tr:hover { background: var(--blue-dim); }
.price-table tbody tr:last-child td { border-bottom: none; }
/* comparison tables (multi-column): neutralise the yellow last-column accent */
.price-table.compare td { vertical-align: top; white-space: normal; }
.price-table.compare td:last-child { color: var(--text); font-weight: 400; }
.price-table.compare td:first-child { font-weight: 600; }

/* images inside articles (when added later) */
.prose img { border-radius: var(--radius-lg); border: 1px solid var(--border); margin: 8px 0 24px; }
.prose figure { margin: 0 0 24px; }
.prose figcaption { font-size: 13px; color: var(--muted); margin-top: 8px; text-align: center; }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .burger { display: flex; }
  .nav-phone { display: none; }
  .cards-grid, .post-grid { grid-template-columns: repeat(2, 1fr); }
  .guarantee { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  .cards-grid, .cards-grid.cols-2, .post-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .contact-form { padding: 28px 20px; }
  #floating-cta { bottom: 20px; right: 16px; }
  .price-table { font-size: 14px; }
  .price-table th, .price-table td { padding: 11px 10px; }
}