/* =============================================================
   Wireless Phone Services — Bootstrap 5 customization
   Brand direction: deep navy primary, signal-orange accent,
   neo-grotesque sans for UI, transitional serif for editorial.
   ============================================================= */

:root {
  --wps-navy: #0a1d3a;
  --wps-navy-700: #0f2640;
  --wps-navy-600: #19324f;
  --wps-ink: #0f172a;
  --wps-ink-muted: #475569;
  --wps-muted: #5b6b7d;
  --wps-rule: #e6e8eb;
  --wps-rule-strong: #c9ced6;
  --wps-bg: #f7f7f4;
  --wps-surface: #ffffff;
  --wps-accent: #ff6b1a;
  --wps-accent-700: #e25510;
  --wps-accent-soft: #fff1e7;
  --wps-signal: #1f9d55;
  --wps-warn: #b1471b;

  --wps-radius: 4px;
  --wps-radius-lg: 8px;

  --wps-shadow-sm: 0 1px 2px rgba(10, 29, 58, .06);
  --wps-shadow: 0 6px 24px -8px rgba(10, 29, 58, .18);

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Source Serif 4", "Source Serif Pro", "Iowan Old Style", "Apple Garamond", Georgia, "Times New Roman", serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Bootstrap overrides via CSS vars where possible */
  --bs-body-font-family: var(--font-sans);
  --bs-body-color: var(--wps-ink);
  --bs-body-bg: var(--wps-bg);
  --bs-link-color: var(--wps-navy);
  --bs-link-hover-color: var(--wps-accent-700);
  --bs-primary: var(--wps-navy);
  --bs-border-color: var(--wps-rule);
}

* { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--wps-ink);
  background: var(--wps-bg);
  font-feature-settings: "ss01", "cv11";
}

/* ---------- Typography ---------- */

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5 {
  font-family: var(--font-sans);
  color: var(--wps-navy);
  letter-spacing: -0.015em;
  font-weight: 600;
  line-height: 1.18;
}

.editorial h1, .editorial h2, .editorial h3,
.serif, h1.serif, h2.serif, h3.serif {
  font-family: var(--font-serif);
  letter-spacing: -0.012em;
  font-weight: 500;
}

h1, .h1 { font-size: clamp(2rem, 3.4vw + .6rem, 3.4rem); }
h2, .h2 { font-size: clamp(1.6rem, 1.6vw + .8rem, 2.25rem); }
h3, .h3 { font-size: clamp(1.2rem, .6vw + 1rem, 1.45rem); }
h4 { font-size: 1.1rem; font-weight: 600; }

.eyebrow {
  font-family: var(--font-sans);
  font-size: .78rem;
  letter-spacing: .14em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--wps-accent-700);
}

.lede {
  font-size: 1.2rem;
  line-height: 1.55;
  color: var(--wps-ink-muted);
  max-width: 64ch;
}

.text-muted { color: var(--wps-muted) !important; }
.text-ink { color: var(--wps-ink); }
.text-navy { color: var(--wps-navy) !important; }
.text-accent { color: var(--wps-accent) !important; }

a {
  color: var(--wps-navy);
  text-decoration: underline;
  text-decoration-color: var(--wps-rule-strong);
  text-underline-offset: 3px;
  transition: color .15s ease, text-decoration-color .15s ease;
}
a:hover { color: var(--wps-accent-700); text-decoration-color: var(--wps-accent); }

.no-underline, .no-underline:hover { text-decoration: none; }

/* ---------- Layout helpers ---------- */

.container-narrow { max-width: 880px; margin-inline: auto; }
.container-wide   { max-width: 1240px; margin-inline: auto; }

.section { padding-block: clamp(3.5rem, 6vw, 6rem); }
.section-tight { padding-block: clamp(2.5rem, 4vw, 4rem); }
.section-dark {
  background: var(--wps-navy);
  color: #d8dee8;
}
.section-dark h1, .section-dark h2, .section-dark h3 { color: #ffffff; }
.section-dark .lede { color: #c2cad8; }
.section-dark .eyebrow { color: #ffb37a; }
.section-dark a { color: #fff; text-decoration-color: rgba(255,255,255,.4); }
.section-dark a:hover { color: var(--wps-accent); }

.surface { background: var(--wps-surface); }
.bg-paper { background: var(--wps-bg); }

.rule {
  border: 0;
  border-top: 1px solid var(--wps-rule);
  margin-block: 2.5rem;
}
.rule-strong { border-top-color: var(--wps-rule-strong); }

/* ---------- Navbar ---------- */

.navbar.wps-nav {
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--wps-rule);
  padding-block: .85rem;
}
.navbar.wps-nav .navbar-brand {
  font-family: var(--font-sans);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--wps-navy);
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-size: 1.02rem;
}
.navbar.wps-nav .navbar-brand:hover { color: var(--wps-navy); }
.navbar.wps-nav .brand-mark {
  width: 26px; height: 26px; display: inline-block;
}
.navbar.wps-nav .nav-link {
  color: var(--wps-ink);
  font-weight: 500;
  padding: .45rem .85rem !important;
  font-size: .95rem;
}
.navbar.wps-nav .nav-link:hover,
.navbar.wps-nav .nav-link:focus { color: var(--wps-accent-700); }
.navbar.wps-nav .nav-link.active { color: var(--wps-navy); }
.navbar.wps-nav .dropdown-menu {
  border: 1px solid var(--wps-rule);
  border-radius: var(--wps-radius-lg);
  box-shadow: var(--wps-shadow);
  padding: .35rem;
  min-width: 280px;
}
.navbar.wps-nav .dropdown-item {
  padding: .55rem .65rem;
  border-radius: var(--wps-radius);
  font-size: .92rem;
  color: var(--wps-ink);
  white-space: normal;
}
.navbar.wps-nav .dropdown-item:hover,
.navbar.wps-nav .dropdown-item:focus {
  background: var(--wps-accent-soft);
  color: var(--wps-navy);
}
.navbar.wps-nav .dropdown-item small { display: block; color: var(--wps-muted); font-size: .78rem; margin-top: 2px; }

/* ---------- Buttons ---------- */

.btn {
  font-weight: 600;
  letter-spacing: .005em;
  border-radius: var(--wps-radius);
  padding: .6rem 1.1rem;
  font-size: .95rem;
  border-width: 1px;
  transition: background .15s ease, color .15s ease, border-color .15s ease, transform .05s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary, .btn-primary:focus {
  background: var(--wps-accent);
  border-color: var(--wps-accent);
  color: #fff;
}
.btn-primary:hover { background: var(--wps-accent-700); border-color: var(--wps-accent-700); color: #fff; }

.btn-dark-outline {
  background: transparent;
  color: var(--wps-navy);
  border: 1px solid var(--wps-navy);
}
.btn-dark-outline:hover { background: var(--wps-navy); color: #fff; }

.btn-light-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,.5);
}
.btn-light-outline:hover { background: rgba(255,255,255,.08); color: #fff; border-color: #fff; }

.btn-link.cta-arrow {
  text-decoration: none;
  color: var(--wps-navy);
  padding: 0;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
}
.btn-link.cta-arrow:hover { color: var(--wps-accent-700); }
.btn-link.cta-arrow::after {
  content: "→";
  transition: transform .15s ease;
}
.btn-link.cta-arrow:hover::after { transform: translateX(3px); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding-block: clamp(4rem, 7vw, 7rem) clamp(3rem, 5vw, 5rem);
  background:
    linear-gradient(180deg, var(--wps-navy) 0%, var(--wps-navy-700) 100%);
  color: #e7ebf2;
  overflow: hidden;
}
.hero h1 { color: #fff; max-width: 18ch; }
.hero .lede { color: #c2cad8; max-width: 56ch; }
.hero .eyebrow { color: #ffb37a; }
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 70% 40%, #000 0%, transparent 70%);
  pointer-events: none;
}
.hero-accent {
  position: absolute;
  right: -120px; top: -60px;
  width: 380px; height: 380px;
  border: 1px solid rgba(255, 107, 26, .35);
  border-radius: 50%;
  pointer-events: none;
}
.hero-accent::before, .hero-accent::after {
  content: "";
  position: absolute; inset: 36px;
  border: 1px solid rgba(255, 107, 26, .22);
  border-radius: 50%;
}
.hero-accent::after { inset: 72px; border-color: rgba(255, 107, 26, .12); }

/* ---------- Cards ---------- */

.card-clean {
  background: var(--wps-surface);
  border: 1px solid var(--wps-rule);
  border-radius: var(--wps-radius-lg);
  padding: 1.5rem;
  height: 100%;
  transition: border-color .15s ease, transform .15s ease, box-shadow .15s ease;
}
.card-clean:hover {
  border-color: var(--wps-rule-strong);
  box-shadow: var(--wps-shadow-sm);
}
.card-clean h3 { font-size: 1.15rem; margin-bottom: .35rem; }
.card-clean p  { color: var(--wps-ink-muted); margin-bottom: 1rem; }
.card-clean .card-icon {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--wps-rule-strong);
  border-radius: var(--wps-radius);
  margin-bottom: 1rem;
  color: var(--wps-navy);
  background: #fff;
}

.case-card {
  background: var(--wps-surface);
  border: 1px solid var(--wps-rule);
  border-radius: var(--wps-radius-lg);
  overflow: hidden;
  height: 100%;
  display: flex; flex-direction: column;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.case-card:hover { border-color: var(--wps-rule-strong); box-shadow: var(--wps-shadow-sm); }
.case-card .case-thumb {
  aspect-ratio: 16 / 9;
  background: var(--wps-navy);
  position: relative;
  overflow: hidden;
}
.case-card .case-body { padding: 1.25rem 1.4rem 1.5rem; flex: 1; display: flex; flex-direction: column; }
.case-card .case-tags {
  display: flex; flex-wrap: wrap; gap: .4rem;
  margin-bottom: .65rem;
}
.tag {
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--wps-ink-muted);
  background: var(--wps-bg);
  border: 1px solid var(--wps-rule);
  border-radius: 999px;
  padding: 3px 10px;
  font-weight: 600;
}
.case-card h3 { font-size: 1.2rem; margin-bottom: .5rem; }
.case-card p  { color: var(--wps-ink-muted); margin-bottom: 1rem; }
.case-card .stat-row {
  display: flex; gap: 1.25rem;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--wps-rule);
}
.case-card .stat .num { font-size: 1.35rem; font-weight: 600; color: var(--wps-navy); }
.case-card .stat .lbl { font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; color: var(--wps-muted); }

/* ---------- Stat / metric blocks ---------- */

.metric {
  border-left: 2px solid var(--wps-accent);
  padding-left: 1rem;
}
.metric .num { font-size: 2rem; font-weight: 600; color: var(--wps-navy); line-height: 1.1; }
.metric .lbl { color: var(--wps-ink-muted); font-size: .9rem; margin-top: .25rem; }

/* ---------- Service / industry detail ---------- */

.detail-hero {
  padding-block: clamp(3rem, 5vw, 5rem) clamp(2rem, 3vw, 3rem);
  border-bottom: 1px solid var(--wps-rule);
  background: var(--wps-surface);
}
.detail-hero .crumb {
  font-size: .82rem;
  letter-spacing: .03em;
  color: var(--wps-muted);
  margin-bottom: 1rem;
}
.detail-hero .crumb a { color: var(--wps-muted); text-decoration: none; }
.detail-hero .crumb a:hover { color: var(--wps-accent-700); }

.toc {
  position: sticky; top: 90px;
  font-size: .9rem;
  border-left: 1px solid var(--wps-rule);
  padding-left: 1rem;
}
.toc h6 { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--wps-muted); margin-bottom: .65rem; font-weight: 600; }
.toc a { display: block; padding: .25rem 0; text-decoration: none; color: var(--wps-ink-muted); }
.toc a:hover, .toc a.active { color: var(--wps-navy); }

.content-block { padding-block: 2.25rem; }
.content-block h2 { font-size: 1.5rem; margin-bottom: 1rem; }
.content-block p  { margin-bottom: 1rem; max-width: 70ch; }
.content-block ul { margin-bottom: 1rem; padding-left: 1.1rem; }
.content-block li { margin-bottom: .35rem; max-width: 68ch; }

.callout {
  background: var(--wps-surface);
  border: 1px solid var(--wps-rule);
  border-left: 3px solid var(--wps-accent);
  border-radius: var(--wps-radius);
  padding: 1.25rem 1.4rem;
  margin-block: 1.5rem;
}
.callout strong { color: var(--wps-navy); }

/* ---------- Diagram-ish blocks (engineered look) ---------- */

.diagram {
  background: var(--wps-surface);
  border: 1px solid var(--wps-rule);
  border-radius: var(--wps-radius-lg);
  padding: 1.5rem;
  font-family: var(--font-mono);
  color: var(--wps-ink-muted);
  font-size: .85rem;
  line-height: 1.55;
  position: relative;
  background-image:
    linear-gradient(to right, rgba(10, 29, 58, .04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10, 29, 58, .04) 1px, transparent 1px);
  background-size: 16px 16px;
}
.diagram .node {
  display: inline-block;
  background: #fff;
  border: 1px solid var(--wps-navy);
  border-radius: var(--wps-radius);
  padding: .3rem .65rem;
  color: var(--wps-navy);
  font-weight: 600;
  margin: .25rem;
  font-size: .8rem;
}
.diagram .node.accent { border-color: var(--wps-accent); color: var(--wps-accent-700); }

/* ---------- Forms ---------- */

.wps-form {
  background: var(--wps-surface);
  border: 1px solid var(--wps-rule);
  border-radius: var(--wps-radius-lg);
  padding: 2rem;
}
.wps-form .form-label {
  font-size: .82rem;
  font-weight: 600;
  color: var(--wps-navy);
  letter-spacing: .01em;
  margin-bottom: .35rem;
}
.wps-form .form-control,
.wps-form .form-select {
  border-radius: var(--wps-radius);
  border: 1px solid var(--wps-rule-strong);
  padding: .65rem .8rem;
  font-size: .95rem;
  background: #fff;
}
.wps-form .form-control:focus,
.wps-form .form-select:focus {
  border-color: var(--wps-navy);
  box-shadow: 0 0 0 3px rgba(10, 29, 58, .12);
}
.wps-form .form-text { font-size: .82rem; color: var(--wps-muted); }
.wps-form .required::after { content: " *"; color: var(--wps-accent-700); }

.opt-in-box {
  background: var(--wps-bg);
  border: 1px solid var(--wps-rule);
  border-radius: var(--wps-radius);
  padding: 1rem 1.1rem;
  margin-block: .5rem 1.25rem;
}
.opt-in-box .form-check-label { font-size: .9rem; color: var(--wps-ink); }
.opt-in-box .form-check-input {
  margin-top: .25rem;
  width: 1.1em; height: 1.1em;
  border-color: var(--wps-rule-strong);
}
.opt-in-box .form-check-input:checked {
  background-color: var(--wps-navy);
  border-color: var(--wps-navy);
}

.form-success {
  display: none;
  background: #e9f6ef;
  border: 1px solid #b8dcc6;
  border-left: 3px solid var(--wps-signal);
  border-radius: var(--wps-radius);
  padding: 1.25rem 1.4rem;
  color: #145c34;
}
.form-success.show { display: block; }

/* ---------- Footer ---------- */

.wps-footer {
  background: var(--wps-navy);
  color: #c2cad8;
  padding-block: 3.5rem 1.5rem;
  font-size: .9rem;
}
.wps-footer h6 {
  color: #fff;
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  font-weight: 600;
}
.wps-footer a { color: #c2cad8; text-decoration: none; }
.wps-footer a:hover { color: var(--wps-accent); }
.wps-footer ul { list-style: none; padding: 0; margin: 0; }
.wps-footer li { margin-bottom: .5rem; }
.wps-footer .footer-brand {
  font-weight: 700;
  color: #fff;
  display: inline-flex; align-items: center; gap: .55rem;
  font-size: 1.02rem;
  margin-bottom: 1rem;
}
.wps-footer .footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap;
  gap: 1rem;
  font-size: .82rem;
  color: #8d99ab;
}
.wps-footer .footer-bottom a { color: #8d99ab; }
.wps-footer .footer-bottom a:hover { color: #fff; }

/* ---------- Misc ---------- */

.kv-list { list-style: none; padding: 0; margin: 0; }
.kv-list li {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 1rem;
  padding: .8rem 0;
  border-top: 1px solid var(--wps-rule);
  font-size: .95rem;
}
.kv-list li:last-child { border-bottom: 1px solid var(--wps-rule); }
.kv-list .k { color: var(--wps-muted); font-weight: 500; }
.kv-list .v { color: var(--wps-ink); }

.filter-bar { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 2rem; }
.filter-chip {
  font-size: .85rem;
  padding: .4rem .9rem;
  border-radius: 999px;
  border: 1px solid var(--wps-rule-strong);
  background: #fff;
  color: var(--wps-ink);
  cursor: pointer;
  font-weight: 500;
}
.filter-chip:hover { border-color: var(--wps-navy); }
.filter-chip.active { background: var(--wps-navy); border-color: var(--wps-navy); color: #fff; }

.quote-block {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  line-height: 1.45;
  color: var(--wps-navy);
  border-left: 2px solid var(--wps-accent);
  padding: .25rem 0 .25rem 1.4rem;
  max-width: 60ch;
}
.quote-block + .quote-attr {
  margin-top: 1rem;
  font-size: .9rem;
  color: var(--wps-muted);
  padding-left: 1.4rem;
}

/* Compact horizontal team row: small circular avatar + name + role. */
.team-row {
  display: flex;
  align-items: center;
  gap: .9rem;
  padding: .65rem .25rem;
}
.team-avatar {
  flex: 0 0 auto;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--wps-bg);
  border: 1px solid var(--wps-rule);
  overflow: hidden;
  position: relative;
  transition: border-color .15s ease;
}
.team-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  display: block;
}
.team-row:hover .team-avatar { border-color: var(--wps-rule-strong); }
.team-meta { min-width: 0; }
.team-meta h4 {
  margin: 0 0 .1rem 0;
  font-size: .98rem;
  color: var(--wps-navy);
  font-weight: 600;
  line-height: 1.25;
}
.team-meta .role {
  color: var(--wps-muted);
  font-size: .83rem;
  line-height: 1.3;
}
@media (max-width: 575.98px) {
  .team-avatar { width: 56px; height: 56px; }
}

.logo-wall {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--wps-rule);
  border: 1px solid var(--wps-rule);
  border-radius: var(--wps-radius-lg);
  overflow: hidden;
}
@media (min-width: 768px) { .logo-wall { grid-template-columns: repeat(4, 1fr); } }
.logo-wall .cell {
  background: var(--wps-surface);
  padding: 1.5rem;
  display: flex; align-items: center; justify-content: center;
  color: var(--wps-muted);
  font-family: var(--font-mono);
  font-size: .9rem;
  letter-spacing: .05em;
  min-height: 90px;
}

.insight-card {
  padding: 1.5rem 0;
  border-top: 1px solid var(--wps-rule);
}
.insight-card:last-child { border-bottom: 1px solid var(--wps-rule); }
.insight-card .meta {
  font-size: .8rem;
  color: var(--wps-muted);
  letter-spacing: .04em;
  margin-bottom: .35rem;
  text-transform: uppercase;
}
.insight-card h3 { margin-bottom: .4rem; }
.insight-card h3 a { color: var(--wps-navy); text-decoration: none; }
.insight-card h3 a:hover { color: var(--wps-accent-700); }
.insight-card p { color: var(--wps-ink-muted); max-width: 70ch; }

/* ---------- Detail thumb art (CSS-only network-ish patterns) ---------- */
.thumb-art {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background:
    linear-gradient(135deg, rgba(255, 107, 26, .12) 0%, transparent 60%),
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.08), transparent 40%),
    var(--wps-navy);
  color: rgba(255,255,255,.9);
  font-family: var(--font-mono);
  font-size: .85rem;
  letter-spacing: .04em;
}
.thumb-art .grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 24px 24px;
}
.thumb-art .label {
  position: relative; z-index: 1;
  border: 1px solid rgba(255,255,255,.4);
  padding: .35rem .8rem;
  border-radius: 999px;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .14em;
}

/* ---------- Utility ---------- */
.shadow-soft { box-shadow: var(--wps-shadow-sm); }
.border-rule { border: 1px solid var(--wps-rule); }
.mono { font-family: var(--font-mono); }

/* Focus visible (accessibility) */
:focus-visible {
  outline: 2px solid var(--wps-accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Skip link */
.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--wps-navy); color: #fff;
  padding: .6rem 1rem;
  border-radius: 0 0 var(--wps-radius) 0;
  z-index: 9999;
}
.skip-link:focus { left: 0; color: #fff; }

/* Responsive tweaks */
@media (max-width: 767.98px) {
  .toc { position: static; border-left: 0; padding-left: 0; border-top: 1px solid var(--wps-rule); padding-top: 1rem; margin-bottom: 1.5rem; }
  .kv-list li { grid-template-columns: 1fr; gap: .15rem; }
  .hero-accent { width: 220px; height: 220px; right: -90px; top: -40px; }
}