/* Silverline Imaging — shared stylesheet
   Modern corporate: charcoal + accent blue */

:root {
  --color-charcoal: #1a1f2e;
  --color-charcoal-2: #2c3548;
  --color-charcoal-3: #475569;
  --color-blue: #1e6ec4;
  --color-blue-dark: #155596;
  --color-blue-soft: #e8f0fb;
  --color-bg: #ffffff;
  --color-bg-soft: #f6f8fb;
  --color-border: #e2e8f0;
  --color-text: #1a1f2e;
  --color-text-muted: #5a6478;
  --color-text-inverse: #ffffff;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --maxw: 1200px;
  --radius: 4px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 6px 24px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; display: block; }

a {
  color: var(--color-blue);
  text-decoration: none;
  transition: color .15s ease;
}
a:hover { color: var(--color-blue-dark); }

h1, h2, h3, h4 {
  color: var(--color-charcoal);
  margin: 0 0 .6em;
  letter-spacing: -0.01em;
  line-height: 1.2;
  font-weight: 600;
}
h1 { font-size: 2.6rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; color: var(--color-text); }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Top bar ---------- */
.topbar {
  background: var(--color-charcoal);
  color: var(--color-text-inverse);
  font-size: .85rem;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 8px;
  padding-bottom: 8px;
}
.topbar a { color: #cbd5e1; }
.topbar a:hover { color: #fff; }
.topbar-contact span { margin-right: 18px; }

/* ---------- Site header ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  padding-bottom: 18px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-charcoal);
}
img.brand-mark {
  width: 34px !important;
  height: 34px !important;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}
img.footer-brand-mark {
  width: 34px !important;
  height: 34px !important;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}
.brand-text { line-height: 1.1; }
.brand-name { font-weight: 700; font-size: 1.15rem; color: var(--color-charcoal); }
.brand-sub { font-size: .72rem; color: var(--color-text-muted); letter-spacing: 0.08em; text-transform: uppercase; }

.nav { display: flex; gap: 28px; align-items: center; }
.nav a {
  color: var(--color-charcoal);
  font-weight: 500;
  font-size: .95rem;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}
.nav a:hover, .nav a.active {
  color: var(--color-blue-dark);
  border-bottom-color: var(--color-blue);
}
.nav .btn { border: none; padding: 10px 18px; }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 8px 10px;
  cursor: pointer;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  background: var(--color-blue);
  color: #fff;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid var(--color-blue);
  cursor: pointer;
  transition: all .15s ease;
}
.btn:hover { background: var(--color-blue-dark); color: #fff; border-color: var(--color-blue-dark); }
.btn-outline {
  background: transparent;
  color: var(--color-text-inverse);
  border-color: rgba(255,255,255,0.4);
}
.btn-outline:hover { background: rgba(255,255,255,0.1); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--color-charcoal);
  border-color: var(--color-border);
}
.btn-ghost:hover { background: var(--color-bg-soft); color: var(--color-charcoal); border-color: var(--color-charcoal); }

/* ---------- Hero ---------- */
.hero {
  background:
    linear-gradient(135deg, rgba(26,31,46,0.94) 0%, rgba(21,85,150,0.85) 100%),
    radial-gradient(circle at 70% 30%, rgba(255,255,255,0.06), transparent 50%);
  background-color: var(--color-charcoal);
  color: #fff;
  padding: 100px 0 110px;
}
.hero h1 { color: #fff; font-size: 3rem; max-width: 820px; }
.hero .lead {
  font-size: 1.2rem;
  color: #d4dceb;
  max-width: 720px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.eyebrow {
  display: inline-block;
  font-size: .8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-blue);
  font-weight: 600;
  margin-bottom: 14px;
}
.hero .eyebrow { color: #7fb6ff; }

/* ---------- Section ---------- */
section { padding: 80px 0; }
.section-soft { background: var(--color-bg-soft); }
.section-dark { background: var(--color-charcoal); color: #fff; }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark p { color: #d4dceb; }

.section-head { max-width: 760px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Grid ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Cards ---------- */
.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all .2s ease;
}
.card:hover {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card-icon {
  width: 44px; height: 44px;
  border-radius: 6px;
  background: var(--color-blue-soft);
  color: var(--color-blue-dark);
  display: grid; place-items: center;
  margin-bottom: 16px;
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--color-text-muted); margin-bottom: 0; font-size: .95rem; }

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding: 40px 0;
}
.stat-num { font-size: 2.4rem; font-weight: 700; color: var(--color-blue); line-height: 1; }
.stat-label { color: var(--color-text-muted); font-size: .9rem; margin-top: 6px; }

/* ---------- CTA strip ---------- */
.cta-strip {
  background: var(--color-charcoal);
  color: #fff;
  padding: 56px 0;
}
.cta-strip .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-strip h2 { color: #fff; margin: 0; font-size: 1.7rem; }
.cta-strip p { color: #cbd5e1; margin: 6px 0 0; }

/* ---------- Service detail blocks ---------- */
.service-block {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 48px;
  padding: 48px 0;
  border-bottom: 1px solid var(--color-border);
}
.service-block:last-child { border-bottom: none; }
.service-block h3 { font-size: 1.6rem; margin-bottom: 8px; }
.service-block .service-tag {
  font-size: .75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-blue);
  font-weight: 600;
}
.service-block ul {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
}
.service-block ul li {
  position: relative;
  padding-left: 22px;
  color: var(--color-text);
  font-size: .95rem;
}
.service-block ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 12px; height: 2px;
  background: var(--color-blue);
}

/* ---------- Industries ---------- */
.industry-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
  border-top: 3px solid var(--color-blue);
}
.industry-card h3 { margin-bottom: 12px; }
.industry-card p { font-size: .95rem; color: var(--color-text-muted); margin-bottom: 0; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}
.contact-info h3 { margin-bottom: 6px; font-size: 1.05rem; }
.contact-info .info-block { margin-bottom: 24px; }
.contact-info p { color: var(--color-text-muted); margin: 0; }

form .field { margin-bottom: 16px; }
form label {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: var(--color-charcoal);
  margin-bottom: 6px;
}
form input, form select, form textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text);
  background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
form input:focus, form select:focus, form textarea:focus {
  outline: none;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(30,110,196,0.15);
}
form textarea { min-height: 130px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ---------- Footer ---------- */
.site-footer {
  background: #0f1320;
  color: #aab2c0;
  padding: 60px 0 24px;
  font-size: .9rem;
}
.site-footer h4 {
  color: #fff;
  font-size: .85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.site-footer a { color: #aab2c0; }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid #1f2638;
}
.footer-list { list-style: none; padding: 0; margin: 0; }
.footer-list li { margin-bottom: 8px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  flex-wrap: wrap;
  gap: 12px;
  font-size: .82rem;
}

/* ---------- Inner page hero ---------- */
.page-hero {
  background: var(--color-charcoal);
  color: #fff;
  padding: 80px 0 70px;
}
.page-hero h1 { color: #fff; margin-bottom: 12px; }
.page-hero p { color: #cbd5e1; max-width: 720px; font-size: 1.1rem; }
.crumbs { font-size: .85rem; color: #8aa1c4; margin-bottom: 14px; }
.crumbs a { color: #8aa1c4; }
.crumbs a:hover { color: #fff; }

/* ---------- About ---------- */
.about-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.value-list { list-style: none; padding: 0; margin: 0; }
.value-list li {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}
.value-list li:last-child { border-bottom: none; }
.value-list strong { color: var(--color-charcoal); display: block; margin-bottom: 4px; }
.value-list span { color: var(--color-text-muted); font-size: .95rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 1.6rem; }
  .hero { padding: 70px 0 80px; }
  .hero h1 { font-size: 2.2rem; }
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .service-block { grid-template-columns: 1fr; gap: 16px; }
  .service-block ul { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .about-cols { grid-template-columns: 1fr; gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .topbar .container { flex-direction: column; gap: 4px; padding-top: 6px; padding-bottom: 6px; }
  .topbar-contact span { margin-right: 12px; }
  .menu-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 20px;
    gap: 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; border-bottom: 1px solid var(--color-border); }
  .nav a:last-child { border-bottom: none; }
  .nav .btn { margin-top: 12px; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
  .cta-strip .container { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 540px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; gap: 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}