:root {
  --ink: #18232a;
  --muted: #59656f;
  --paper: #f7f4ee;
  --white: #ffffff;
  --line: #d8d1c5;
  --navy: #0d2635;
  --teal: #1f8f8a;
  --teal-dark: #11635f;
  --amber: #c7792d;
  --amber-soft: #f0c27a;
  --shadow: rgba(16, 24, 32, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 14px 6vw;
  color: var(--white);
  background: rgba(13, 38, 53, 0.94);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--navy);
  background: var(--amber-soft);
  border-radius: 8px;
  font-weight: 800;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
  font-size: 0.95rem;
}

.nav a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
}

.nav a:hover,
.nav a:focus {
  color: var(--white);
}

.hero {
  position: relative;
  min-height: 82svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--navy);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 24, 33, 0.92) 0%, rgba(8, 24, 33, 0.78) 36%, rgba(8, 24, 33, 0.28) 72%),
    url("./assets/hero-call-operations.png") center / cover no-repeat;
}

.hero-content {
  position: relative;
  width: min(680px, 88vw);
  margin-left: 6vw;
  padding: 64px 0 84px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--amber-soft);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  font-size: 4.4rem;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 620px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 1.26rem;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-proof span {
  padding: 8px 10px;
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 750;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
}

.button-primary {
  color: var(--navy);
  background: var(--amber-soft);
}

.button-primary:hover,
.button-primary:focus {
  background: #f4cf8e;
}

.button-secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.38);
  background: rgba(255, 255, 255, 0.08);
}

.button-secondary:hover,
.button-secondary:focus {
  border-color: rgba(255, 255, 255, 0.72);
  background: rgba(255, 255, 255, 0.14);
}

.section {
  padding: 86px 6vw;
}

.intro {
  padding-top: 38px;
  background: var(--white);
}

.section-inner {
  width: min(1160px, 100%);
  margin: 0 auto;
}

.two-column,
.value-layout,
.sample-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 56px;
  align-items: start;
}

h2 {
  margin: 0;
  color: var(--ink);
  font-size: 2.45rem;
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1.12rem;
  letter-spacing: 0;
}

p {
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.72;
}

.section-heading {
  max-width: 650px;
  margin-bottom: 34px;
}

.section-heading p {
  margin-bottom: 0;
}

.value-layout {
  align-items: center;
}

.value-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.value-strip div {
  min-height: 138px;
  padding: 22px 24px;
  border-right: 1px solid var(--line);
}

.value-strip div:last-child {
  border-right: 0;
}

.value-strip strong,
.value-strip span {
  display: block;
}

.value-strip strong {
  margin-bottom: 18px;
  color: var(--teal-dark);
  font-size: 1.22rem;
}

.value-strip span {
  color: var(--muted);
  line-height: 1.55;
}

.hvac-section {
  background: #ece7dc;
}

.pain-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.pain-card {
  min-height: 245px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 34px rgba(25, 35, 42, 0.07);
}

.pain-card span {
  display: block;
  margin-bottom: 34px;
  color: var(--teal-dark);
  font-weight: 850;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.pain-card p {
  margin-bottom: 0;
  font-size: 0.96rem;
}

.call-path-section {
  background: var(--white);
}

.evidence-section {
  background: var(--white);
}

.evidence-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 56px;
  align-items: center;
}

.evidence-photo {
  position: relative;
  margin: 0;
}

.evidence-photo picture,
.sample-photo {
  display: block;
  overflow: hidden;
  border-radius: 8px;
  background: var(--navy);
}

.evidence-photo img,
.sample-photo img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.evidence-photo figcaption {
  position: relative;
  width: min(86%, 440px);
  margin: -52px 0 0 24px;
  padding: 16px 18px;
  color: var(--white);
  background: rgba(13, 38, 53, 0.92);
  border-left: 4px solid var(--amber-soft);
  border-radius: 8px;
  line-height: 1.45;
}

.evidence-content > p {
  margin-bottom: 26px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.metric-grid article {
  display: grid;
  gap: 10px;
  min-height: 190px;
  padding: 22px;
  background: #f4efe6;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.metric-grid strong {
  color: var(--teal-dark);
  font-size: 3.1rem;
  line-height: 0.9;
}

.metric-grid span {
  color: var(--ink);
  line-height: 1.42;
}

.metric-grid a {
  align-self: end;
  color: var(--teal-dark);
  font-size: 0.9rem;
  font-weight: 850;
  text-decoration: none;
}

.metric-grid a:hover,
.metric-grid a:focus {
  text-decoration: underline;
}

.call-path-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 62px;
  align-items: start;
}

.call-path {
  position: relative;
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.call-path::before {
  content: "";
  position: absolute;
  top: 20px;
  bottom: 20px;
  left: 28px;
  width: 2px;
  background: linear-gradient(var(--teal), var(--amber-soft));
}

.call-path li {
  position: relative;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 22px;
  padding: 0 0 30px;
}

.call-path li:last-child {
  padding-bottom: 0;
}

.call-path li > span {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  color: var(--white);
  background: var(--teal-dark);
  border: 6px solid var(--white);
  border-radius: 50%;
  font-weight: 850;
}

.call-path h3 {
  padding-top: 6px;
}

.call-path p {
  max-width: 520px;
  margin: 8px 0 0;
  font-size: 1rem;
  line-height: 1.55;
}

.proof-band {
  color: var(--white);
  background: var(--navy);
}

.proof-band h2,
.proof-band p {
  color: var(--white);
}

.proof-band p {
  color: rgba(255, 255, 255, 0.78);
}

.pilot-header {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 30px;
}

.pilot-header h2 {
  max-width: 820px;
}

.carousel-controls {
  display: none;
  gap: 8px;
}

.carousel-button {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  font: inherit;
  font-size: 1.2rem;
  font-weight: 850;
  cursor: pointer;
}

.carousel-button:hover,
.carousel-button:focus {
  border-color: rgba(255, 255, 255, 0.64);
  background: rgba(255, 255, 255, 0.14);
}

.pilot-carousel {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  overflow-x: visible;
  padding: 2px;
}

.pilot-slide {
  min-height: 220px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.pilot-slide span {
  display: block;
  margin-bottom: 30px;
  color: var(--amber-soft);
  font-size: 0.8rem;
  font-weight: 850;
  text-transform: uppercase;
}

.pilot-slide h3 {
  color: var(--white);
}

.pilot-slide p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.94rem;
  line-height: 1.54;
}

.pilot-dots {
  display: none;
  gap: 8px;
  align-items: center;
  margin-top: 14px;
}

.pilot-dots button {
  width: 28px;
  height: 6px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.26);
  cursor: pointer;
}

.pilot-dots button.is-active {
  background: var(--amber-soft);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.sample-section {
  background: var(--white);
}

.sample-card {
  position: relative;
  min-height: 490px;
}

.sample-card .summary-panel {
  position: absolute;
  right: 22px;
  bottom: 22px;
  width: min(440px, calc(100% - 44px));
}

.summary-panel {
  padding: 28px;
  background: #102f3e;
  color: var(--white);
  border-radius: 8px;
  box-shadow: 0 24px 54px var(--shadow);
}

.summary-topline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.summary-topline span {
  padding: 7px 10px;
  color: var(--navy);
  background: var(--amber-soft);
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 850;
}

.summary-panel h3 {
  margin-bottom: 18px;
}

.summary-panel dl {
  display: grid;
  gap: 16px;
  margin: 0;
}

.summary-panel dl div {
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.summary-panel dt {
  margin-bottom: 6px;
  color: var(--amber-soft);
  font-weight: 800;
}

.summary-panel dd {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.55;
}

.fit-section {
  background: #ece7dc;
}

.fit-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 56px;
  align-items: start;
}

.fit-list {
  border-top: 1px solid rgba(13, 38, 53, 0.18);
}

.fit-list div {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(0, 1.3fr);
  gap: 24px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(13, 38, 53, 0.18);
}

.fit-list strong,
.fit-list span {
  display: block;
}

.fit-list strong {
  color: var(--ink);
}

.fit-list span {
  color: var(--muted);
  line-height: 1.55;
}

.outcomes-section {
  color: var(--white);
  background: var(--navy);
}

.outcomes-section h2,
.outcomes-section p {
  color: var(--white);
}

.outcomes-layout {
  display: grid;
  gap: 34px;
}

.outcome-ribbon {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.outcome-ribbon div {
  min-height: 150px;
  padding: 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
}

.outcome-ribbon div:last-child {
  border-right: 0;
}

.outcome-ribbon strong,
.outcome-ribbon span {
  display: block;
}

.outcome-ribbon strong {
  margin-bottom: 18px;
  color: var(--amber-soft);
  font-size: 1.2rem;
}

.outcome-ribbon span {
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.55;
}

.outcome-note {
  max-width: 760px;
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
}

.faq-section {
  background: var(--white);
}

.faq-list {
  display: grid;
  border-top: 1px solid var(--line);
}

.faq-list details {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  padding: 22px 0;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 850;
  cursor: pointer;
}

.faq-list p {
  max-width: 780px;
  margin: -6px 0 22px;
  font-size: 0.98rem;
  line-height: 1.58;
}

.contact-section {
  background: #ece7dc;
}

.contact-note {
  margin-top: 28px;
  padding: 20px;
  background: rgba(31, 143, 138, 0.1);
  border: 1px solid rgba(31, 143, 138, 0.22);
  border-radius: 8px;
  border-color: rgba(31, 143, 138, 0.22);
}

.contact-note strong,
.contact-note span {
  display: block;
}

.contact-note strong {
  color: var(--teal-dark);
  margin-bottom: 6px;
}

.contact-note span {
  color: var(--muted);
  line-height: 1.55;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 44px rgba(25, 35, 42, 0.1);
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 0.93rem;
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid #cfc7b9;
  border-radius: 6px;
  padding: 12px 13px;
  color: var(--ink);
  background: #fffdfa;
  font: inherit;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(31, 143, 138, 0.22);
  border-color: var(--teal);
}

.full-span {
  grid-column: 1 / -1;
}

.form-status {
  min-height: 28px;
  margin: 0;
  font-size: 0.95rem;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  align-items: center;
  justify-content: space-between;
  padding: 24px 6vw;
  color: rgba(255, 255, 255, 0.72);
  background: #0a1d28;
}

.site-footer a {
  color: var(--amber-soft);
  text-decoration: none;
}

@media (max-width: 920px) {
  .site-header {
    position: relative;
    align-items: flex-start;
    flex-direction: column;
    min-height: 0;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    min-height: 78svh;
  }

  .hero h1 {
    font-size: 3.2rem;
  }

  .hero-copy {
    font-size: 1.08rem;
  }

  .two-column,
  .value-layout,
  .evidence-layout,
  .call-path-layout,
  .sample-layout,
  .fit-layout,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .pain-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pilot-carousel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sample-card {
    min-height: 0;
  }

  .sample-card .summary-panel {
    position: relative;
    right: auto;
    bottom: auto;
    width: 92%;
    margin: -82px auto 0;
  }
}

@media (max-width: 620px) {
  .site-header,
  .section,
  .site-footer {
    padding-left: 20px;
    padding-right: 20px;
  }

  .nav {
    gap: 12px;
    justify-content: flex-start;
    font-size: 0.9rem;
  }

  .hero {
    min-height: 76svh;
  }

  .hero-bg {
    background:
      linear-gradient(90deg, rgba(8, 24, 33, 0.94) 0%, rgba(8, 24, 33, 0.82) 58%, rgba(8, 24, 33, 0.5) 100%),
      url("./assets/hero-call-operations.png") center / cover no-repeat;
  }

  .hero-content {
    width: calc(100% - 40px);
    margin-left: 20px;
    padding-top: 44px;
    padding-bottom: 62px;
  }

  .hero h1 {
    font-size: 2.7rem;
  }

  h2 {
    font-size: 2rem;
  }

  .pain-grid,
  .value-strip,
  .metric-grid,
  .outcome-ribbon,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .value-strip div,
  .outcome-ribbon div {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .outcome-ribbon div {
    border-bottom-color: rgba(255, 255, 255, 0.18);
  }

  .value-strip div:last-child,
  .outcome-ribbon div:last-child {
    border-bottom: 0;
  }

  .call-path li {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 16px;
  }

  .call-path::before {
    left: 23px;
  }

  .call-path li > span {
    width: 48px;
    height: 48px;
    border-width: 5px;
    font-size: 0.86rem;
  }

  .pilot-carousel {
    grid-template-columns: 1fr;
  }

  .fit-list div {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .evidence-photo figcaption {
    width: calc(100% - 24px);
    margin: -36px auto 0;
  }

  .metric-grid strong {
    font-size: 2.7rem;
  }

  .sample-card .summary-panel {
    width: 100%;
    margin-top: 0;
    border-radius: 0 0 8px 8px;
  }
}