:root {
  --navy-950: #05162c;
  --navy-900: #071e3a;
  --navy-850: #0b284b;
  --navy-800: #10345c;
  --ink: #102037;
  --muted: #66758a;
  --line: #d9e1e9;
  --soft: #f4f7f8;
  --white: #ffffff;
  --green: #49c878;
  --green-dark: #1b9e58;
  --teal: #21c6c8;
  --aqua: #49d3c4;
  --blue: #3a7bd5;
  --shadow: 0 18px 55px rgba(5, 22, 44, 0.16);
  --shadow-soft: 0 10px 32px rgba(5, 22, 44, 0.08);
  --radius: 12px;
  --radius-sm: 8px;
  --container: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "Inter", Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; }

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 {
  font-family: "Barlow Condensed", "Arial Narrow", sans-serif;
  line-height: 0.98;
  letter-spacing: -0.018em;
}
h1 { font-size: clamp(4rem, 7vw, 6.75rem); text-transform: uppercase; margin-bottom: 24px; }
h2 { font-size: clamp(2.7rem, 4vw, 4.25rem); text-transform: uppercase; margin-bottom: 18px; }
h3 { font-size: 1.9rem; margin-bottom: 12px; }

.eyebrow {
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(16, 32, 55, 0.09);
  transition: box-shadow 180ms ease;
}
.site-header.scrolled { box-shadow: 0 8px 24px rgba(5, 22, 44, 0.10); }
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand img { width: 106px; height: auto; }
.header-actions { display: flex; align-items: center; gap: 22px; }
.phone-link { font-weight: 800; font-size: 0.94rem; color: var(--navy-900); }
.phone-icon { color: var(--green-dark); margin-right: 6px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 0.86rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, color 180ms ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: var(--navy-950); background: linear-gradient(90deg, var(--green), var(--aqua)); box-shadow: 0 10px 28px rgba(50, 197, 126, 0.26); }
.btn-primary:hover { box-shadow: 0 14px 34px rgba(50, 197, 126, 0.38); }
.btn-small { min-height: 40px; padding-inline: 18px; font-size: 0.78rem; }
.btn-block { width: 100%; min-height: 52px; }
.btn-ghost-light { color: #fff; border-color: rgba(255,255,255,0.35); background: rgba(255,255,255,0.06); }
.btn-ghost-light:hover { background: rgba(255,255,255,0.12); }
.btn-outline-dark { border-color: rgba(7,30,58,0.26); color: var(--navy-900); background: #fff; }

.section-dark { color: var(--white); background: var(--navy-950); }
.section-light { background: #fff; }

.hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background-color: var(--navy-950);
  background-image:
    linear-gradient(90deg, rgba(4,19,38,.95) 0%, rgba(4,19,38,.87) 42%, rgba(5,24,47,.70) 64%, rgba(5,24,47,.76) 100%),
    linear-gradient(180deg, rgba(1,14,29,.14), rgba(1,14,29,.48)),
    url("../images/7ten-hero-background.webp");
  background-position: center, center, center 47%;
  background-repeat: no-repeat;
  background-size: cover;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 72% 18%, rgba(33,198,200,.16), transparent 26%),
    radial-gradient(circle at 9% 88%, rgba(73,200,120,.12), transparent 25%);
}
.hero-grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, black 8%, transparent 88%);
}
.hero-layout {
  position: relative;
  z-index: 1;
  min-height: 710px;
  padding: 72px 0 70px;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(440px, 0.95fr);
  gap: 68px;
  align-items: center;
}
.hero-copy { max-width: 620px; }
.hero-copy h1 { color: #fff; }
.hero-subhead { max-width: 590px; font-size: clamp(1.08rem, 1.7vw, 1.34rem); color: #d8e4ee; margin-bottom: 28px; }
.hero-subhead strong { color: #fff; }
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { position: relative; padding-left: 34px; margin-bottom: 13px; color: #f4f8fb; font-weight: 600; }
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: -2px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(73,200,120,0.75);
  border-radius: 50%;
  color: var(--green);
  font-size: 0.74rem;
}
.hero-list { margin-bottom: 32px; }
.hero-cta-row { display: flex; flex-wrap: wrap; gap: 12px; }
.microcopy { color: #9fb0c4; font-size: 0.78rem; margin: 14px 0 0; max-width: 520px; }

.audit-card {
  background: rgba(255,255,255,0.985);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 26px 80px rgba(0,0,0,.29);
  border: 1px solid rgba(255,255,255,.68);
}
.audit-card-heading { text-align: center; margin-bottom: 22px; }
.mini-label { display: inline-block; color: var(--green-dark); font-size: 0.68rem; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 7px; }
.audit-card h2 { font-size: 2.15rem; text-transform: none; margin-bottom: 7px; }
.audit-card-heading p { color: var(--muted); font-size: 0.86rem; margin-bottom: 0; }
.audit-form { display: grid; gap: 13px; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-grid { display: grid; gap: 12px; }
.two-col { grid-template-columns: 1fr 1fr; }
.field { display: grid; gap: 6px; }
.field label { font-size: 0.72rem; font-weight: 800; color: #324159; }
.field input, .field select {
  min-width: 0;
  width: 100%;
  height: 45px;
  border: 1px solid #cbd6e1;
  background: #fff;
  border-radius: 5px;
  padding: 0 12px;
  outline: none;
  color: #18283e;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(33,198,200,.13); }
.field input.invalid, .field select.invalid { border-color: #c94646; box-shadow: 0 0 0 3px rgba(201,70,70,.09); }
.form-disclaimer { font-size: 0.66rem; line-height: 1.45; color: #7a8799; text-align: center; margin: -2px 0 0; }
.form-status { min-height: 0; margin: 0; font-size: 0.76rem; font-weight: 700; color: #b63939; text-align: center; }

.proof-strip { background: #fff; border-bottom: 1px solid var(--line); }
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); padding: 24px 0; }
.proof-card { padding: 14px 26px; text-align: center; border-right: 1px solid var(--line); display: grid; justify-items: center; }
.proof-card:last-child { border-right: 0; }
.proof-icon { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: #eaf9f1; color: var(--green-dark); font-weight: 900; margin-bottom: 8px; }
.proof-card strong { font-family: "Barlow Condensed", sans-serif; font-size: 2.15rem; line-height: 1; color: var(--navy-900); }
.proof-card > span:not(.proof-icon) { max-width: 190px; min-height: 46px; font-weight: 700; font-size: 0.86rem; line-height: 1.35; }
.proof-card small { color: var(--muted); font-size: 0.67rem; margin-top: 7px; }
.proof-card-brand strong { font-size: 1.55rem; margin-top: 5px; }

.fit-section { padding: 72px 0; background: var(--soft); }
.fit-panel { display: grid; grid-template-columns: 1fr 1fr; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-soft); }
.fit-column { padding: 44px 48px; }
.fit-best { background: #fff; }
.fit-not { background: #0a203c; color: #fff; }
.fit-heading { display: flex; gap: 18px; align-items: flex-start; }
.fit-symbol { flex: 0 0 auto; width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; font-size: 1.25rem; font-weight: 900; }
.fit-best .fit-symbol { background: #eaf9f1; color: var(--green-dark); }
.fit-not .fit-symbol { background: rgba(255,255,255,.08); color: #fff; border: 1px solid rgba(255,255,255,.2); }
.fit-heading h2 { font-size: 2.25rem; text-transform: none; line-height: 1.02; }
.fit-not .eyebrow { color: var(--teal); }
.fit-column ul { margin: 18px 0 0 60px; padding-left: 18px; }
.fit-column li { margin: 9px 0; font-size: .94rem; }
.fit-not li { color: #dce5ed; }

.case-studies { padding: 92px 0 100px; }
.section-heading { max-width: 760px; margin-bottom: 44px; }
.section-heading.centered { text-align: center; margin-left: auto; margin-right: auto; }
.section-heading > p:last-child { color: var(--muted); font-size: 1rem; max-width: 650px; margin: 0 auto; }
.section-heading.light > p:last-child { color: #b9c7d4; }
.section-heading.light h2 { color: #fff; }
.case-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.case-card { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; box-shadow: var(--shadow-soft); }
.case-visual { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #0c2e51; }
.case-photo { width: 100%; height: 100%; object-fit: cover; transition: transform 500ms ease; }
.case-card:hover .case-photo { transform: scale(1.025); }
.cornerstone-visual .case-photo { object-position: center 42%; }
.byrd-visual .case-photo { object-position: center 52%; }
.case-photo-shade { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4,20,38,.42) 0%, rgba(4,20,38,.02) 44%, rgba(4,20,38,.66) 100%); }
.case-client-logo { position: absolute; z-index: 2; left: 20px; top: 18px; width: auto; height: auto; object-fit: contain; filter: drop-shadow(0 3px 14px rgba(0,0,0,.28)); }
.case-client-logo.cornerstone-logo { width: 178px; max-height: 78px; }
.case-client-logo.byrd-logo { width: 190px; max-height: 82px; }
.case-badge { position: absolute; z-index: 2; left: 20px; bottom: 18px; padding: 7px 10px; background: rgba(5,22,44,.88); color: #fff; font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; border-left: 3px solid var(--green); backdrop-filter: blur(8px); }
.case-content { padding: 30px; }
.case-kicker { color: var(--green-dark); font-weight: 800; font-size: .75rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 8px; }
.case-content h3 { font-size: 2.1rem; color: var(--navy-900); }
.case-content > p:not(.case-kicker) { color: var(--muted); font-size: .91rem; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--line); }
.metric-row > div { display: grid; gap: 5px; }
.metric-row strong { font-family: "Barlow Condensed", sans-serif; font-size: 1.9rem; color: var(--navy-900); line-height: 1; }
.metric-row span { color: var(--muted); font-size: .68rem; line-height: 1.35; }

.audit-process { position: relative; overflow: hidden; padding: 96px 0 104px; background: #06172d; }
.audit-blueprint { position: absolute; inset: 0; opacity: 1; background: linear-gradient(90deg, rgba(4,20,38,.80) 0%, rgba(4,20,38,.56) 48%, rgba(4,20,38,.76) 100%), linear-gradient(180deg, rgba(4,20,38,.10) 0%, rgba(4,20,38,.52) 100%), url("../images/7ten-audit-background.jpg") center/cover no-repeat; pointer-events: none; }
.audit-process .container { position: relative; z-index: 1; }
.steps-grid { position: relative; display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 18px; align-items: center; }
.step-card { min-height: 210px; padding: 30px; border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.055); border-radius: var(--radius-sm); backdrop-filter: blur(6px); }
.step-num { display: inline-grid; place-items: center; width: 45px; height: 45px; border-radius: 50%; border: 1px solid rgba(73,200,120,.6); color: var(--green); font-family: "Barlow Condensed", sans-serif; font-size: 1.3rem; font-weight: 800; margin-bottom: 22px; }
.step-card h3 { color: #fff; }
.step-card p { color: #b8c7d6; font-size: .89rem; margin-bottom: 0; }
.step-arrow { color: var(--green); font-size: 2.1rem; }

.credibility { padding: 96px 0; }
.credibility-grid { display: grid; grid-template-columns: 1.02fr .98fr; gap: 68px; align-items: center; }
.office-visual { position: relative; min-height: 390px; aspect-ratio: 4/3; border-radius: var(--radius); overflow: hidden; background: var(--navy-900); box-shadow: var(--shadow); }
.office-visual > img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.office-visual-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4,20,38,.03) 34%, rgba(4,20,38,.72) 100%); }
.office-visual::before { content: ""; position: absolute; z-index: 2; left: 0; top: 0; width: 7px; height: 82px; background: linear-gradient(var(--green), var(--teal)); }
.office-visual-caption { position: absolute; z-index: 3; left: 26px; right: 26px; bottom: 22px; color: #fff; display: grid; gap: 3px; }
.office-visual-caption strong { font-family: "Barlow Condensed", sans-serif; font-size: 1.65rem; line-height: 1; text-transform: uppercase; letter-spacing: .02em; }
.office-visual-caption span { color: #d2dde7; font-size: .75rem; font-weight: 600; }
.credibility-copy h2 { color: var(--navy-900); }
.credibility-copy > p:not(.eyebrow) { color: var(--muted); }
.credibility-points { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 28px; }
.credibility-points span { padding: 8px 10px; background: #eff7f5; border: 1px solid #d7ece7; color: #235c54; font-size: .72rem; font-weight: 800; }

.faq-section { padding: 86px 0 96px; background: var(--soft); }
.faq-wrap { max-width: 900px; }
.faq-list { display: grid; gap: 10px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 6px; box-shadow: 0 5px 18px rgba(5,22,44,.035); }
.faq-item summary { list-style: none; cursor: pointer; position: relative; padding: 20px 56px 20px 22px; font-weight: 800; font-size: .92rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 1.5rem; color: var(--green-dark); font-weight: 500; }
.faq-item[open] summary::after { content: "−"; }
.faq-answer { padding: 0 22px 20px; color: var(--muted); font-size: .9rem; max-width: 770px; }
.faq-answer p { margin-bottom: 0; }

.final-cta { padding: 54px 0; background: #fff; }
.final-cta-panel { display: grid; grid-template-columns: auto 1fr auto; gap: 26px; align-items: center; padding: 30px 34px; border: 1px solid var(--line); border-left: 5px solid var(--green); border-radius: var(--radius-sm); background: linear-gradient(100deg, #fff, #f4fbf8); box-shadow: var(--shadow-soft); }
.target-icon { width: 64px; height: 64px; display: grid; place-items: center; font-size: 3.2rem; color: var(--green-dark); }
.final-copy .eyebrow { margin-bottom: 5px; }
.final-copy h2 { text-transform: none; font-size: 2.5rem; margin: 0; }
.final-actions { display: flex; gap: 10px; }

.site-footer { background: #06182f; color: #fff; padding: 54px 0 20px; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; align-items: flex-start; }
.footer-brand { max-width: 330px; }
.footer-brand img { width: 112px; height: auto; margin-bottom: 16px; }
.footer-brand p { color: #aebdca; font-size: .8rem; }
.footer-contact { display: grid; justify-items: end; gap: 6px; }
.footer-contact span { color: var(--green); font-size: .68rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.footer-contact a { font-weight: 700; font-size: .86rem; }
.footer-bottom { margin-top: 34px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.12); display: flex; justify-content: space-between; gap: 24px; color: #72869a; font-size: .66rem; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 550ms ease, transform 550ms ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn { transition: none; }
}

@media (max-width: 1020px) {
  .hero-layout { grid-template-columns: 1fr; gap: 44px; padding-top: 64px; }
  .hero-copy { max-width: 760px; }
  .audit-card { max-width: 760px; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-card:nth-child(2) { border-right: 0; }
  .proof-card:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .case-grid, .credibility-grid { grid-template-columns: 1fr; }
  .office-visual { max-width: 760px; min-height: 420px; }
  .steps-grid { grid-template-columns: 1fr; }
  .step-arrow { transform: rotate(90deg); justify-self: center; line-height: 1; }
  .step-card { min-height: auto; }
  .final-cta-panel { grid-template-columns: auto 1fr; }
  .final-actions { grid-column: 2; }
}

@media (max-width: 760px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .header-inner { min-height: 62px; }
  .brand img { width: 82px; }
  .phone-link span:not(.phone-icon) { display: none; }
  .phone-link { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 4px; }
  .phone-icon { margin: 0; }
  .header-actions { gap: 8px; }
  .btn-small { min-height: 40px; }
  h1 { font-size: clamp(3.35rem, 16vw, 5.1rem); }
  h2 { font-size: clamp(2.5rem, 12vw, 3.7rem); }
  .hero-layout { min-height: 0; padding: 54px 0 50px; }
  .hero-subhead { font-size: 1.05rem; }
  .hero-cta-row { display: grid; }
  .hero-cta-row .btn { width: 100%; }
  .audit-card { padding: 22px 18px; }
  .two-col { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: 1fr 1fr; }
  .proof-card { padding: 18px 12px; }
  .proof-card strong { font-size: 1.8rem; }
  .fit-section { padding: 48px 0; }
  .fit-panel { grid-template-columns: 1fr; }
  .fit-column { padding: 34px 24px; }
  .fit-column ul { margin-left: 24px; }
  .fit-heading h2 { font-size: 2rem; }
  .case-studies, .credibility, .audit-process, .faq-section { padding: 68px 0; }
  .case-content { padding: 24px 20px; }
  .metric-row { grid-template-columns: 1fr; gap: 14px; }
  .metric-row > div { grid-template-columns: 90px 1fr; align-items: center; }
  .office-visual { min-height: 320px; }
  .credibility-grid { gap: 38px; }
  .final-cta-panel { grid-template-columns: 1fr; padding: 28px 22px; text-align: center; }
  .target-icon { margin: auto; }
  .final-actions { grid-column: auto; display: grid; }
  .footer-inner, .footer-bottom { flex-direction: column; }
  .footer-contact { justify-items: start; }
}