:root {
  --navy: #061a3d;
  --navy-2: #0d3470;
  --teal: #0d9a9c;
  --teal-light: #65d4cf;
  --gold: #eba312;
  --gold-dark: #b77a00;
  --ink: #172033;
  --muted: #657086;
  --line: #dfe5ed;
  --paper: #ffffff;
  --soft: #f5f7fa;
  --charcoal: #30333a;
  --shadow: 0 22px 60px rgba(6, 26, 61, 0.12);
}

* {
  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: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 64px);
  background: rgba(255, 255, 255, 0.88);
  border-bottom: 1px solid rgba(223, 229, 237, 0.74);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 800;
  color: var(--navy);
  letter-spacing: 0;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand span {
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
}

.site-nav a {
  position: relative;
  padding-block: 6px;
}

.site-nav a::after {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  content: "";
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 9px;
  background: var(--navy);
  border: 0;
  border-radius: 8px;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  margin: 5px 0;
  background: var(--paper);
}

.hero {
  position: relative;
  min-height: 88vh;
  display: grid;
  align-items: center;
  padding: 76px clamp(18px, 5vw, 80px) 34px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.78) 54%, rgba(245, 247, 250, 0.5)),
    linear-gradient(135deg, rgba(6, 26, 61, 0.08), rgba(13, 154, 156, 0.08), rgba(235, 163, 18, 0.11));
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(48vw, 620px);
  height: 26px;
  content: "";
  background: linear-gradient(90deg, var(--navy), var(--teal), var(--gold));
}

.hero-bg {
  position: absolute;
  inset: 6% -5% auto auto;
  width: min(72vw, 820px);
  aspect-ratio: 1;
  background: url("assets/tbd-digital-solutions-logo.png") center / contain no-repeat;
  opacity: 0.16;
  filter: saturate(1.08);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(840px, 100%);
}

.hero-logo {
  width: clamp(104px, 10vw, 128px);
  margin-bottom: 14px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--teal);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  color: var(--navy);
  font-size: clamp(2.45rem, 4.75vw, 3.9rem);
  line-height: 1;
  letter-spacing: 0;
}

h2 {
  color: var(--navy);
  font-size: clamp(2rem, 4.2vw, 3.9rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  color: var(--navy);
  font-size: 1.32rem;
  line-height: 1.15;
}

.hero-copy {
  max-width: 680px;
  margin-bottom: 22px;
  color: var(--charcoal);
  font-size: clamp(1.04rem, 1.7vw, 1.28rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 13px 20px;
  border: 2px solid transparent;
  border-radius: 8px;
  font-weight: 900;
  line-height: 1;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    background 160ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button.primary {
  color: var(--paper);
  background: var(--navy);
  box-shadow: 0 14px 26px rgba(6, 26, 61, 0.2);
}

.button.secondary {
  color: var(--navy);
  background: var(--paper);
  border-color: var(--line);
}

.section,
.intro-band {
  padding: clamp(62px, 9vw, 118px) clamp(18px, 5vw, 80px);
}

.section-inner {
  width: min(1180px, 100%);
  margin-inline: auto;
}

.intro-band {
  background: var(--navy);
  color: var(--paper);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.5fr);
  gap: clamp(28px, 6vw, 88px);
  align-items: center;
}

.promise {
  margin: 0;
  color: var(--gold);
  font-size: clamp(2.2rem, 5vw, 5rem);
  font-weight: 950;
  line-height: 0.95;
}

.intro-band h2 {
  color: var(--paper);
  font-size: clamp(1.9rem, 3.2vw, 3rem);
}

.intro-band p:last-child {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.08rem;
}

.section-heading {
  width: min(780px, 100%);
  margin-bottom: 34px;
}

.section-heading p:last-child {
  color: var(--muted);
  font-size: 1.08rem;
}

.services-section {
  background: var(--soft);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.service-card {
  min-height: 100%;
  padding: 28px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(23, 32, 51, 0.06);
}

.service-icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 20px;
  place-items: center;
  border-radius: 8px;
  color: var(--paper);
  font-weight: 950;
}

.service-icon.tech {
  background: var(--navy);
}

.service-icon.training {
  background: var(--teal);
}

.service-icon.brand {
  background: var(--gold-dark);
}

.service-card p {
  color: var(--muted);
}

.service-card ul {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.service-card li {
  position: relative;
  padding-left: 22px;
  color: var(--ink);
  font-weight: 750;
}

.service-card li::before {
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 9px;
  height: 9px;
  content: "";
  background: var(--gold);
  border-radius: 50%;
  transform: translateY(-50%);
}

.approach-section {
  background: var(--paper);
}

.approach-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.64fr);
  gap: clamp(24px, 5vw, 72px);
  align-items: start;
  margin-bottom: 28px;
}

.approach-section sup {
  font-size: 0.35em;
  vertical-align: super;
}

.framework-promise {
  padding: clamp(22px, 3vw, 32px);
  color: var(--paper);
  background:
    linear-gradient(135deg, rgba(6, 26, 61, 0.96), rgba(13, 52, 112, 0.92)),
    url("assets/tbd-logo-512.png") right -34px bottom -38px / 180px no-repeat;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.framework-promise span {
  display: block;
  margin-bottom: 14px;
  color: var(--gold);
  font-size: clamp(1.45rem, 2.4vw, 2.2rem);
  font-weight: 950;
  line-height: 1.02;
}

.framework-promise p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.82);
}

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

.keep-card {
  position: relative;
  min-height: 100%;
  padding: 24px;
  overflow: hidden;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.keep-card::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  content: "";
  background: linear-gradient(90deg, var(--navy), var(--teal), var(--gold));
}

.keep-card > span {
  display: grid;
  width: 54px;
  height: 54px;
  margin-bottom: 18px;
  place-items: center;
  color: var(--paper);
  background: var(--navy);
  border-radius: 8px;
  font-size: 1.5rem;
  font-weight: 950;
  line-height: 1;
}

.keep-card:nth-child(2) > span {
  background: var(--teal);
}

.keep-card:nth-child(3) > span {
  background: var(--gold-dark);
}

.keep-card:nth-child(4) > span {
  background: var(--navy-2);
}

.keep-card p {
  color: var(--muted);
}

.keep-card ul {
  display: grid;
  gap: 9px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.keep-card li {
  position: relative;
  padding-left: 18px;
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 750;
}

.keep-card li::before {
  position: absolute;
  top: 0.75em;
  left: 0;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--teal);
  border-radius: 50%;
  transform: translateY(-50%);
}

.framework-applications {
  margin-top: 20px;
  padding: clamp(24px, 4vw, 34px);
  background: var(--navy);
  border-radius: 8px;
}

.framework-applications h3 {
  margin-bottom: 20px;
  color: var(--paper);
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.application-grid p {
  display: grid;
  gap: 4px;
  min-height: 94px;
  margin: 0;
  padding: 16px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 8px;
}

.application-grid strong {
  color: var(--gold);
  line-height: 1.2;
}

.application-grid span {
  color: rgba(255, 255, 255, 0.82);
}

.clients-section {
  color: var(--paper);
  background:
    linear-gradient(90deg, rgba(6, 26, 61, 0.96), rgba(6, 26, 61, 0.9)),
    url("assets/tbd-digital-solutions-logo.png") right 8% center / min(48vw, 520px) no-repeat;
}

.clients-section h2 {
  color: var(--paper);
}

.client-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 7vw, 90px);
  align-items: start;
}

.client-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.client-list span {
  padding: 12px 14px;
  color: var(--paper);
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  font-weight: 800;
}

.contact-section {
  background: linear-gradient(180deg, var(--paper), var(--soft));
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.72fr);
  gap: clamp(30px, 7vw, 92px);
  align-items: start;
}

.contact-copy {
  position: sticky;
  top: 110px;
}

.contact-copy p:last-child {
  max-width: 620px;
  color: var(--muted);
  font-size: 1.1rem;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: clamp(22px, 4vw, 34px);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 7px;
  color: var(--navy);
  font-size: 0.9rem;
  font-weight: 850;
}

input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  padding: 12px 13px;
  color: var(--ink);
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(13, 154, 156, 0.22);
  border-color: var(--teal);
}

.form-note {
  min-height: 22px;
  margin: 0;
  color: var(--teal);
  font-weight: 800;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px 24px;
  padding: 26px clamp(18px, 5vw, 80px);
  color: var(--paper);
  background: #030b1d;
}

.site-footer div {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.site-footer img {
  width: 38px;
  height: 38px;
}

.site-footer p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 750;
}

@media (max-width: 860px) {
  .site-header {
    padding-block: 12px;
  }

  .brand span {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 1px);
    left: 0;
    width: 100%;
    display: none;
    padding: 16px 18px 22px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 38px rgba(6, 26, 61, 0.1);
  }

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

  .hero {
    min-height: 92vh;
    padding-top: 92px;
  }

  .hero-bg {
    inset: 14% -22% auto auto;
    width: 92vw;
    opacity: 0.12;
  }

  .intro-grid,
  .approach-intro,
  .client-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .service-grid,
  .keep-grid,
  .application-grid {
    grid-template-columns: 1fr;
  }

  .contact-copy {
    position: static;
  }
}

@media (max-width: 520px) {
  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-logo {
    width: 112px;
  }

  .service-card {
    padding: 22px;
  }

  .contact-form {
    padding: 20px;
  }
}