:root {
  --bg: #07111f;
  --bg-2: #0d1b2d;
  --surface: #ffffff;
  --surface-soft: #f4f7fb;
  --text: #102033;
  --muted: #64748b;
  --line: #dce5ef;
  --primary: #13b7a6;
  --primary-2: #4dd6ff;
  --accent: #ffb454;
  --danger: #e95757;
  --shadow: 0 24px 70px rgba(7, 17, 31, 0.18);
  --radius: 24px;
  --container: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: #f8fbff;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary);
  color: #001013;
  padding: .75rem 1rem;
  z-index: 999;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.container {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}
.section-pad { padding: 96px 0; }
.section-pad-sm { padding: 62px 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 max(20px, calc((100vw - var(--container)) / 2));
  background: rgba(7, 17, 31, 0.84);
  border-bottom: 1px solid rgba(255,255,255,.1);
  backdrop-filter: blur(18px);
  color: white;
  transition: box-shadow .2s ease, background .2s ease;
}
.site-header.is-elevated { box-shadow: 0 12px 35px rgba(0,0,0,.28); background: rgba(7, 17, 31, 0.94); }

.brand { display: inline-flex; align-items: center; gap: .75rem; min-width: max-content; }
.brand-logo { gap: .65rem; }
.brand-logo-frame {
  height: 40px;
  width: 220px;
  display: grid;
  place-items: center;
  padding: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}
.brand-logo-frame img { max-width: 100%; max-height: 100%; display:block; object-fit: contain; }
.brand-subline { color: #a8b7ca; font-size: .76rem; font-weight: 800; letter-spacing: .02em; }
.brand-mark {
  width: 42px; height: 42px; border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #04101d; font-weight: 900;
  box-shadow: 0 14px 34px rgba(19,183,166,.32);
  overflow: hidden;
}
.brand-mark img { width: 100%; height: 100%; display: block; }
.review-banner {
  position: sticky;
  top: 72px;
  z-index: 49;
  display:flex;
  justify-content:center;
  align-items:center;
  gap:.65rem;
  flex-wrap:wrap;
  padding:.58rem 1rem;
  background:#fff8e8;
  border-bottom:1px solid rgba(255,180,84,.38);
  color:#5d3a05;
  font-size:.86rem;
  font-weight:800;
}
.review-banner span { color:#7a4b00; }
.review-banner strong {
  display:inline-flex;
  align-items:center;
  min-height:24px;
  padding:.2rem .55rem;
  border-radius:999px;
  background:rgba(255,180,84,.18);
  border:1px solid rgba(255,180,84,.36);
  color:#5d3a05;
}

.hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: white;
  background:
    radial-gradient(circle at 18% 20%, rgba(19,183,166,.35), transparent 34%),
    radial-gradient(circle at 78% 8%, rgba(77,214,255,.22), transparent 28%),
    linear-gradient(140deg, #07111f 0%, #0c2136 54%, #102a39 100%);
}
.hero-bg::before,
.hero-bg::after {
  content: "";
  position: absolute;
  border-radius: 999px;
  filter: blur(8px);
  opacity: .6;
}
.hero-bg::before { width: 520px; height: 520px; right: -190px; top: 110px; border: 1px solid rgba(255,255,255,.11); }
.hero-bg::after { width: 220px; height: 220px; left: 54%; bottom: 90px; border: 1px solid rgba(19,183,166,.3); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.eyebrow { letter-spacing: .13em; text-transform: uppercase; font-size: .78rem; font-weight: 800; color: #7ee8dc; margin: 0 0 1rem; }
.eyebrow.dark { color: #087d76; }
.hero h1 { font-size: clamp(2.8rem, 7vw, 5.75rem); line-height: .94; letter-spacing: -.065em; margin: 0 0 1.35rem; max-width: 900px; }
.hero-lead { color: #d7e4f2; font-size: clamp(1.08rem, 2vw, 1.28rem); max-width: 760px; margin: 0 0 2rem; }
.hero-actions, .cta-inner { display:flex; flex-wrap: wrap; gap: 1rem; align-items:center; }
.btn {
  display: inline-flex; align-items:center; justify-content:center;
  min-height: 48px; padding: .85rem 1.15rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 800;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-2)); color: #02101a; box-shadow: 0 18px 40px rgba(19,183,166,.25); }
.btn-secondary { color: white; border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.08); }
.btn-light { background: white; color: #07111f; box-shadow: 0 16px 38px rgba(0,0,0,.18); }
.btn-full { width: 100%; border: 0; font-size: 1rem; }

.trust-strip { list-style:none; padding:0; margin: 2rem 0 0; display:flex; flex-wrap:wrap; gap:.65rem; }
.trust-strip li { border:1px solid rgba(255,255,255,.16); background: rgba(255,255,255,.08); border-radius:999px; padding:.55rem .85rem; color:#d7e4f2; font-size:.92rem; }
.hero-panel { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); box-shadow: var(--shadow); border-radius: 32px; padding: 28px; backdrop-filter: blur(20px); }
.hero-visual { width: 100%; display:block; border-radius: 26px; margin-bottom: 22px; box-shadow: 0 28px 70px rgba(0,0,0,.30); }
.panel-topline { color: #7ee8dc; font-weight: 900; margin-bottom: 1rem; }
.flow-list { list-style: none; padding:0; margin:0; display:grid; gap:.9rem; }
.flow-list li { display:flex; align-items:center; gap:.8rem; padding: .9rem; border-radius: 18px; background: rgba(255,255,255,.08); color:#eef7ff; }
.flow-list span { display:grid; place-items:center; width:34px; height:34px; border-radius: 12px; background: rgba(19,183,166,.16); color:#7ee8dc; font-weight:900; }
.metric-row { display:grid; grid-template-columns: repeat(3, 1fr); gap:.65rem; margin-top:1rem; }
.metric-row div { padding:1rem; border-radius:18px; background: rgba(1,10,18,.24); }
.metric-row strong { display:block; font-size:1.55rem; color:white; }
.metric-row small { color:#b4c6d9; }

.position { background: white; }
.split { display:grid; grid-template-columns: .8fr 1.2fr; gap: 52px; align-items:start; }
h2 { font-size: clamp(2rem, 4vw, 3.25rem); line-height: 1.02; letter-spacing: -.04em; margin: 0 0 1rem; }
.split p:last-child { color: var(--muted); font-size: 1.1rem; margin: .5rem 0 0; }

.solutions { background: var(--surface-soft); }
.section-head { max-width: 820px; margin-bottom: 34px; }
.section-head p { color: var(--muted); font-size: 1.08rem; }
.section-visual { width: 100%; display:block; margin-top: 24px; border-radius: 28px; box-shadow: 0 22px 55px rgba(28,43,65,.12); }
.dark-visual { box-shadow: 0 24px 60px rgba(3, 18, 31, .22); }
.cloud-pbx-showcase { display:grid; gap:18px; }
.cloud-pbx-visual { margin-top: 0; min-height: 260px; object-fit: cover; border: 1px solid rgba(8,125,118,.16); }
.cards-grid { display:grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.solution-card {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 18px 45px rgba(28, 43, 65, .07);
  min-height: 360px;
  display:flex;
  flex-direction:column;
}
.solution-card.featured { grid-column: span 2; background: linear-gradient(145deg, #08182a, #123c46); color:white; border-color: rgba(255,255,255,.08); }
.solution-card.featured p, .solution-card.featured li { color:#d7e7f0; }
.card-icon { width:56px; height:56px; border-radius:18px; background: linear-gradient(135deg, rgba(19,183,166,.18), rgba(77,214,255,.22)); color:#046c68; display:grid; place-items:center; font-weight:900; margin-bottom:1.2rem; }
.featured .card-icon { color:#06101d; background: linear-gradient(135deg, var(--primary), var(--primary-2)); }
.card-kicker { color:#087d76; font-size:.8rem; text-transform:uppercase; font-weight:900; letter-spacing:.12em; margin: 0 0 .4rem; }
.solution-card h3 { font-size: 1.55rem; margin:0 0 .8rem; letter-spacing:-.025em; }
.solution-card p { color: var(--muted); margin-top:0; }
.solution-card ul { padding-left: 1.1rem; color:#41546b; margin-bottom: 1.2rem; }
.solution-card li { margin: .35rem 0; }
.text-link { color:#087d76; font-weight:900; margin-top:auto; }
.featured .text-link { color:#7ee8dc; }

.use-cases { background: #ffffff; }
.use-case-grid { display:grid; grid-template-columns: repeat(4, 1fr); gap:16px; }
.use-case-card {
  min-height: 310px;
  display:flex;
  flex-direction:column;
  padding:24px;
  border:1px solid var(--line);
  border-radius:22px;
  background: linear-gradient(180deg, #fbfdff 0%, #f4f7fb 100%);
  box-shadow: 0 14px 34px rgba(28, 43, 65, .06);
}
.use-case-card span { display:inline-grid; place-items:center; width:42px; height:42px; border-radius:15px; background:#e5fbf8; color:#087d76; font-weight:900; margin-bottom:1rem; }
.use-case-card h3 { margin:0 0 .65rem; font-size:1.15rem; letter-spacing:-.02em; }
.use-case-card p { color:var(--muted); margin:0 0 1rem; }
.use-case-card .text-link { margin-top:auto; }

.proai-flow { background: white; }
.flow-grid { display:grid; grid-template-columns:.82fr 1.18fr; gap:42px; align-items:start; }
.flow-steps { display:grid; grid-template-columns: repeat(2, 1fr); gap:16px; }
.flow-step {
  padding:24px;
  border:1px solid var(--line);
  border-radius:22px;
  background: linear-gradient(180deg, #fbfdff 0%, #f4fbfa 100%);
  box-shadow: 0 14px 34px rgba(28, 43, 65, .06);
}
.flow-step span { display:inline-grid; place-items:center; width:42px; height:42px; border-radius:15px; background:#e5fbf8; color:#087d76; font-weight:900; margin-bottom:1rem; }
.flow-step h3 { margin:0 0 .45rem; }
.flow-step p { margin:0; color:var(--muted); }

.why { background:white; }
.why-grid { display:grid; grid-template-columns:.8fr 1.2fr; gap:42px; }
.why-list { display:grid; gap:16px; }
.why-item { display:flex; gap:18px; padding:24px; border:1px solid var(--line); border-radius:22px; background:#fbfdff; }
.why-item span { flex:0 0 42px; height:42px; display:grid; place-items:center; border-radius:15px; background:#e5fbf8; color:#087d76; font-weight:900; }
.why-item h3 { margin:0 0 .35rem; }
.why-item p { margin:0; color:var(--muted); }

.faq { background: linear-gradient(180deg, #ffffff 0%, #f4f7fb 100%); }
.faq-grid { display:grid; grid-template-columns:.82fr 1.18fr; gap:42px; align-items:start; }
.faq-list { display:grid; gap:14px; }
.faq-item {
  background:white;
  border:1px solid var(--line);
  border-radius:22px;
  padding:20px 22px;
  box-shadow: 0 14px 34px rgba(28, 43, 65, .06);
}
.faq-item summary {
  cursor:pointer;
  font-weight:900;
  color:#102033;
  list-style:none;
}
.faq-item summary::-webkit-details-marker { display:none; }
.faq-item summary::after {
  content:"+";
  float:right;
  color:#087d76;
  font-weight:900;
  margin-left:1rem;
}
.faq-item[open] summary::after { content:"–"; }
.faq-item p { margin:.85rem 0 0; color:var(--muted); }

.references { background:#ffffff; }
.references-grid {
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  grid-template-columns:repeat(6, 1fr);
  gap:14px;
}
.reference-logo {
  height:104px;
  border:1px solid var(--line);
  border-radius:20px;
  background:#ffffff;
  box-shadow:0 14px 34px rgba(28, 43, 65, .06);
  display:grid;
  place-items:center;
  padding:16px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.reference-logo:hover { transform: translateY(-2px); box-shadow:0 18px 40px rgba(28,43,65,.12); }
.reference-logo img { max-width:100%; max-height:70px; object-fit:contain; filter:saturate(.95); }

.cta-band { background: linear-gradient(135deg, #0b2738, #0b5b59); color:white; }
.cta-inner { justify-content:space-between; gap: 24px; }
.cta-inner h2 { margin-bottom:.55rem; }
.cta-inner p { color:#d9edf2; margin:0; }

.discovery-prep { background:#ffffff; }
.prep-grid { display:grid; grid-template-columns:.82fr 1.18fr; gap:42px; align-items:start; }
.prep-list { display:grid; grid-template-columns:repeat(2, 1fr); gap:16px; }
.prep-item {
  display:flex;
  gap:16px;
  padding:22px;
  border:1px solid var(--line);
  border-radius:22px;
  background:linear-gradient(180deg, #fbfdff 0%, #f4f7fb 100%);
  box-shadow:0 14px 34px rgba(28, 43, 65, .06);
}
.prep-item span { flex:0 0 42px; height:42px; display:grid; place-items:center; border-radius:15px; background:#e5fbf8; color:#087d76; font-weight:900; }
.prep-item h3 { margin:0 0 .4rem; font-size:1.08rem; letter-spacing:-.02em; }
.prep-item p { margin:0; color:var(--muted); }

.form-section { background: #f8fbff; }
.form-grid { display:grid; grid-template-columns:.8fr 1.2fr; gap:42px; align-items:start; }
.form-copy p { color:var(--muted); }
.contact-card { margin-top:1.5rem; padding:22px; border-radius:22px; background:white; border:1px solid var(--line); display:grid; gap:.3rem; }
.contact-card-strong { border-color: rgba(8,125,118,.24); box-shadow: 0 20px 50px rgba(28,43,65,.10); }
.contact-card span { color:var(--muted); }
.contact-card a { color:#087d76; font-weight:800; }
.contact-details { margin: 12px 0 0; display:grid; gap:10px; }
.contact-details div { display:grid; grid-template-columns: 88px 1fr; gap:12px; align-items:start; }
.contact-details dt { font-weight:900; color: var(--ink); font-size:.9rem; }
.contact-details dt::after { content: ':'; }
.contact-details dd { margin:0; color: var(--muted); line-height:1.45; }
.lead-form { background:white; padding:28px; border:1px solid var(--line); border-radius:28px; box-shadow: var(--shadow); display:grid; gap:16px; }
.hp-field {
  position:absolute;
  left:-10000px;
  top:auto;
  width:1px;
  height:1px;
  overflow:hidden;
}
.field-pair { display:grid; grid-template-columns:1fr 1fr; gap:14px; }
label { display:grid; gap:7px; color:#24384f; font-weight:800; font-size:.93rem; }
input, select, textarea {
  width:100%; border:1px solid #cfdae7; background:#fbfdff;
  border-radius:14px; padding: .9rem 1rem;
  font: inherit; color: var(--text); outline:none;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow:0 0 0 4px rgba(19,183,166,.12); }
textarea { resize: vertical; }
.checkbox { display:flex; grid-template-columns:unset; flex-direction:row; gap:.75rem; align-items:flex-start; color:var(--muted); font-weight:600; font-size:.88rem; }
.checkbox input { width:auto; margin-top:.2rem; }
.solution-hint {
  display:grid;
  gap:.35rem;
  padding:14px 16px;
  border:1px solid rgba(8,125,118,.22);
  border-radius:18px;
  background:#f0fffc;
  color:#123047;
}
.solution-hint strong { color:#087d76; font-size:.86rem; text-transform:uppercase; letter-spacing:.08em; }
.solution-hint span { color:var(--muted); font-size:.92rem; }
.form-note { margin:0; color:var(--muted); font-size:.9rem; }
.noscript-note {
  display:grid;
  gap:.35rem;
  padding:14px 16px;
  border:1px solid rgba(233,87,87,.28);
  border-radius:18px;
  background:#fff6f6;
  color:#7d2424;
}
.noscript-note strong { color:#7d2424; }
.noscript-note span { color:#8a4b4b; font-size:.92rem; font-weight:600; }
.form-note.success { color:#087d76; font-weight:800; }
.form-note.error { color:var(--danger); font-weight:800; }
.payload-preview {
  display:grid;
  gap:.55rem;
  padding:16px;
  border-radius:18px;
  border:1px dashed rgba(8,125,118,.38);
  background:#f0fffc;
  color:#123047;
}
.payload-preview[hidden] { display:none; }
.payload-preview strong { color:#087d76; }
.payload-preview span { color:var(--muted); font-size:.9rem; }
.payload-preview pre {
  margin:0;
  padding:12px;
  max-height:240px;
  overflow:auto;
  border-radius:14px;
  background:#06101d;
  color:#dffbf7;
  font-size:.78rem;
  white-space:pre-wrap;
  word-break:break-word;
}
.btn-small {
  width: fit-content;
  padding: .72rem 1rem;
  min-height: auto;
  font-size: .86rem;
  box-shadow: none;
}
.payload-preview .btn-small {
  color:#06101d;
  border-color:rgba(8,125,118,.32);
  background:white;
}

.site-footer { background:#06101d; color:#cbd8e6; padding:42px 0; }
.footer-grid { display:flex; justify-content:space-between; gap:24px; align-items:flex-start; }
.footer-grid p { color:#9dafc2; max-width:520px; }
.footer-nav { display:flex; gap:12px; flex-wrap:wrap; justify-content:flex-end; max-width:520px; }
.footer-nav a {
  color:#dce9f4;
  border:1px solid rgba(220,233,244,.14);
  border-radius:999px;
  padding:.48rem .72rem;
  background:rgba(255,255,255,.03);
  font-weight:800;
  font-size:.9rem;
}
.footer-nav a:hover { border-color:rgba(126,232,220,.42); color:#7ee8dc; }

.mobile-sticky-cta {
  display:none;
  position:fixed;
  left:14px;
  right:14px;
  bottom:14px;
  z-index:60;
  justify-content:center;
  align-items:center;
  padding: .95rem 1.2rem;
  border-radius:999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color:#02101a;
  font-weight:900;
  box-shadow: 0 18px 40px rgba(3, 28, 48, .28);
}

.js-enabled .reveal { opacity: 0; transform: translateY(18px); transition: opacity .55s ease, transform .55s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }
  .js-enabled .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .hero-grid, .split, .flow-grid, .why-grid, .faq-grid, .prep-grid, .form-grid { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .cards-grid, .use-case-grid, .prep-list { grid-template-columns: 1fr 1fr; }
  .references-grid { grid-template-columns: repeat(4, 1fr); }
  .solution-card.featured { grid-column: span 2; }
}

@media (max-width: 760px) {
  .container { width: min(100% - 28px, var(--container)); }
  .section-pad { padding: 66px 0; }
  .section-pad-sm { padding: 48px 0; }
  .site-header { height: 68px; padding: 0 14px; }
  .review-banner { top: 68px; padding: .48rem .8rem; font-size: .78rem; }
  body { padding-bottom: 86px; }
  .hero h1 { font-size: 3rem; }
  .hero-panel { padding:20px; }
  .metric-row, .field-pair, .cards-grid, .flow-steps, .use-case-grid, .prep-list { grid-template-columns: 1fr; }
  .references-grid { grid-template-columns: repeat(2, 1fr); }
  .reference-logo { height: 94px; padding: 12px; }
  .brand-logo-frame { width: 160px; }
  .brand-subline { display:none; }
  .solution-card.featured { grid-column: span 1; }
  .footer-grid { flex-direction:column; }
  .footer-nav { justify-content:flex-start; }
  .mobile-sticky-cta { display:flex; }
}

@media (max-width: 420px) {
  .hero h1 { font-size: 2.55rem; }
  .hero-actions .btn { width:100%; }
  .solution-card, .lead-form { padding:22px; }
}

/* Phase 2 production / SEO pages */
.seo-links { background: #f8fbff; }
.seo-link-grid { display:grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.seo-link-grid a { display:flex; align-items:center; min-height:72px; padding:18px; border-radius:18px; background:#fff; border:1px solid var(--line); box-shadow:0 12px 28px rgba(28,43,65,.06); font-weight:900; color:#0a2335; }
.page-hero { background: radial-gradient(circle at 15% 20%, rgba(19,183,166,.28), transparent 32%), linear-gradient(135deg,#07111f,#102a39); color:#fff; padding: 96px 0 70px; }
.page-hero h1 { font-size: clamp(2.35rem, 5vw, 4.8rem); line-height:.96; letter-spacing:-.055em; max-width: 980px; margin:0 0 1.1rem; }
.page-hero p { max-width:780px; color:#d7e4f2; font-size:1.15rem; }
.breadcrumb { display:flex; gap:.45rem; flex-wrap:wrap; color:#9fb6c9; font-size:.9rem; margin-bottom:1.4rem; }
.breadcrumb a { color:#7ee8dc; }
.page-grid { display:grid; grid-template-columns: 1.1fr .9fr; gap:34px; align-items:start; }
.content-block { background:#fff; border:1px solid var(--line); border-radius:24px; padding:28px; box-shadow:0 14px 34px rgba(28,43,65,.06); }
.content-block h2 { font-size: clamp(1.65rem, 3vw, 2.5rem); }
.check-list { padding-left:1.1rem; color:#41546b; }
.check-list li { margin:.45rem 0; }
.sticky-cta { position:sticky; top:92px; background:linear-gradient(145deg,#08182a,#123c46); color:white; border-radius:26px; padding:28px; box-shadow:var(--shadow); }
.sticky-cta p { color:#d7e7f0; }
.faq-stack details { background:#fff; border:1px solid var(--line); border-radius:18px; padding:18px 20px; margin-bottom:12px; }
.faq-stack summary { cursor:pointer; font-weight:900; }
.internal-links { display:flex; flex-wrap:wrap; gap:10px; }
.internal-links a { padding:.75rem 1rem; border-radius:999px; background:#eafdfa; color:#087d76; font-weight:900; }
@media (max-width: 980px) { .seo-link-grid { grid-template-columns: repeat(2, 1fr); } .page-grid { grid-template-columns:1fr; } .sticky-cta { position:static; } }
@media (max-width: 520px) { .seo-link-grid { grid-template-columns:1fr; } }