:root {
  --ink: #111314;
  --ink-2: #1d2320;
  --paper: #f5f7f8;
  --white: #ffffff;
  --muted: #63706c;
  --line: #dbe2e0;
  --teal: #00a7a5;
  --teal-dark: #073f42;
  --red: #d43c3c;
  --gold: #c7a45b;
  --shadow: 0 18px 44px rgba(17, 19, 20, 0.14);
  --max: 1180px;
}

* {
  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;
  line-height: 1.55;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 20;
  transform: translateY(-140%);
  background: var(--white);
  color: var(--ink);
  padding: 0.7rem 1rem;
  border: 1px solid var(--line);
  border-radius: 6px;
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: min(calc(100% - 32px), var(--max));
  margin: 16px auto 0;
  padding: 10px 12px 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(17, 19, 20, 0);
  color: var(--white);
  backdrop-filter: blur(8px);
  transition:
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(17, 19, 20, 0.18);
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 6px;
  background:
    linear-gradient(135deg, rgba(0, 167, 165, 0.85), rgba(212, 60, 60, 0.82)),
    var(--ink);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 800;
}

.brand-name {
  font-size: 1rem;
  font-weight: 800;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.site-nav a {
  border-radius: 6px;
  padding: 0.62rem 0.82rem;
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  outline: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 92vh;
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background-image: url("crestvox-london-saas-hero.png");
  background-position: center;
  background-size: cover;
  filter: saturate(1.02) contrast(1.03);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(9, 12, 13, 0.96) 0%, rgba(9, 12, 13, 0.76) 38%, rgba(9, 12, 13, 0.18) 70%),
    linear-gradient(0deg, rgba(9, 12, 13, 0.92) 0%, rgba(9, 12, 13, 0.08) 38%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding: 148px 0 56px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 1rem;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 10ch;
  margin: 0;
  font-size: clamp(4.4rem, 12vw, 9.8rem);
  line-height: 0.88;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 660px;
  margin: 1.45rem 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0.83rem 1.05rem;
  font-weight: 800;
  text-decoration: none;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.button-primary {
  background: var(--white);
  color: var(--ink);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: #e9f7f6;
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.32);
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.5);
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  max-width: 880px;
  margin: 52px 0 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(14px);
}

.hero-facts div {
  padding: 1rem;
  background: rgba(17, 19, 20, 0.62);
}

.hero-facts dt {
  color: rgba(255, 255, 255, 0.52);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-facts dd {
  margin: 0.25rem 0 0;
  color: var(--white);
  font-weight: 800;
}

.section-inner {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  padding: 92px 0;
}

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

.intro-grid,
.section-heading.split,
.capability-layout,
.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2rem;
}

.section-heading h2,
.intro h2,
.capability-panel h2,
.contact h2 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1;
  letter-spacing: 0;
}

.intro p,
.section-heading p,
.capability-panel p,
.contact p {
  margin: 0;
  color: var(--muted);
  font-size: 1.06rem;
}

.intro .section-kicker,
.approach .section-kicker,
.capabilities .section-kicker,
.contact .section-kicker {
  color: var(--red);
}

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

.service-card {
  min-height: 330px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.25rem;
  background: var(--white);
  box-shadow: 0 1px 0 rgba(17, 19, 20, 0.04);
}

.service-card:nth-child(even) {
  background: #eef5f4;
}

.card-index {
  color: var(--teal-dark);
  font-weight: 900;
}

.service-card h3,
.capability-list h3 {
  margin: 2.6rem 0 0.85rem;
  font-size: 1.25rem;
  line-height: 1.15;
}

.service-card p,
.capability-list p,
.timeline p,
.proof-grid span {
  margin: 0;
  color: var(--muted);
}

.approach {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 2.5rem 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--line);
}

.timeline li {
  min-height: 230px;
  padding: 1.25rem;
  background: var(--white);
}

.timeline span {
  display: block;
  margin-bottom: 5rem;
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 900;
}

.capabilities {
  background:
    linear-gradient(90deg, rgba(0, 167, 165, 0.1), transparent 34%),
    var(--paper);
}

.capability-panel {
  position: sticky;
  top: 112px;
}

.capability-panel p {
  margin-top: 1.2rem;
}

.capability-list {
  display: grid;
  gap: 1rem;
}

.capability-list div {
  border-left: 4px solid var(--teal);
  border-radius: 0 8px 8px 0;
  padding: 1.25rem 1.5rem;
  background: var(--white);
  box-shadow: var(--shadow);
}

.capability-list div:nth-child(2) {
  border-left-color: var(--red);
}

.capability-list div:nth-child(3) {
  border-left-color: var(--gold);
}

.capability-list h3 {
  margin-top: 0;
}

.proof {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding-top: 0;
  padding-bottom: 0;
  background: var(--line);
}

.proof-grid div {
  min-height: 180px;
  padding: 1.35rem;
  background: var(--white);
}

.proof-grid strong {
  display: block;
  margin-bottom: 2rem;
  font-size: 1.08rem;
}

.contact {
  background: var(--ink);
  color: var(--white);
}

.contact p {
  color: rgba(255, 255, 255, 0.74);
}

.contact .button-primary {
  background: var(--teal);
  color: var(--ink);
}

.contact .button-primary:hover,
.contact .button-primary:focus-visible {
  background: #29d3cf;
}

.text-link {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 800;
  text-decoration-color: rgba(255, 255, 255, 0.4);
  text-underline-offset: 0.28em;
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--white);
}

.site-footer {
  background: #0b0c0d;
  color: var(--white);
}

.footer-inner {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 28px 0;
}

.footer-brand .brand-mark {
  width: 34px;
  height: 34px;
}

.site-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .service-grid,
  .timeline,
  .proof-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro-grid,
  .section-heading.split,
  .capability-layout,
  .contact-inner {
    grid-template-columns: 1fr;
  }

  .capability-panel {
    position: static;
  }
}

@media (max-width: 760px) {
  .site-header {
    width: min(calc(100% - 24px), var(--max));
    margin-top: 12px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 8px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
    background: rgba(17, 19, 20, 0.96);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.24);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 0.85rem;
  }

  .hero {
    min-height: 94vh;
  }

  .hero-media {
    background-position: 62% center;
  }

  .hero-overlay {
    background:
      linear-gradient(90deg, rgba(9, 12, 13, 0.96), rgba(9, 12, 13, 0.74)),
      linear-gradient(0deg, rgba(9, 12, 13, 0.9), transparent 46%);
  }

  .hero-inner {
    padding-top: 104px;
    padding-bottom: 34px;
  }

  .hero h1 {
    font-size: clamp(4rem, 20vw, 6.8rem);
  }

  .hero-facts,
  .service-grid,
  .timeline,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .hero-facts {
    margin-top: 28px;
  }

  .hero-facts div {
    padding: 0.82rem 1rem;
  }

  .section-inner {
    padding: 68px 0;
  }

  .service-card,
  .timeline li,
  .proof-grid div {
    min-height: auto;
  }

  .timeline span {
    margin-bottom: 2rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}