:root {
  --ink: #111827;
  --muted: #4b5563;
  --line: #d8dee8;
  --paper: #ffffff;
  --wash: #f4f5f7;
  --soft: #eef2f6;
  --teal: #0f766e;
  --teal-bright: #5eead4;
  --amber: #f59e0b;
  --amber-hover: #fbbf24;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body,
button,
input,
textarea {
  letter-spacing: 0;
}

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

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

::selection {
  background: #99f6e4;
  color: var(--ink);
}

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 30;
  border-bottom: 1px solid rgb(255 255 255 / 20%);
  background: rgb(17 24 39 / 82%);
  color: #ffffff;
  backdrop-filter: blur(16px);
}

.nav,
.section-inner,
.summary-grid,
.portfolio-inner,
.about-inner,
.contact-inner,
.hero-content {
  width: min(100% - 40px, 1120px);
  margin-inline: auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
}

.brand {
  font-size: 0.95rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: rgb(255 255 255 / 76%);
  font-size: 0.92rem;
}

.nav-links a,
.nav-action,
.button {
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.nav-links a:hover {
  color: #ffffff;
}

.nav-action {
  border: 1px solid rgb(255 255 255 / 32%);
  border-radius: 6px;
  padding: 9px 13px;
  font-size: 0.9rem;
  font-weight: 650;
}

.nav-action:hover {
  border-color: #ffffff;
  background: #ffffff;
  color: var(--ink);
}

.hero {
  position: relative;
  display: flex;
  min-height: 86svh;
  align-items: flex-end;
  overflow: hidden;
  background: var(--ink);
  color: #ffffff;
}

.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  object-fit: cover;
}

.hero-overlay {
  background: linear-gradient(
    90deg,
    rgb(17 24 39 / 94%) 0%,
    rgb(17 24 39 / 74%) 38%,
    rgb(17 24 39 / 24%) 78%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 112px 0 48px;
}

.hero-content h1 {
  max-width: 740px;
  margin: 0;
  font-size: 4.4rem;
  font-weight: 720;
  line-height: 1.04;
}

.hero-copy {
  max-width: 690px;
  margin: 24px 0 0;
  color: rgb(255 255 255 / 84%);
  font-size: 1.25rem;
  line-height: 1.72;
}

.eyebrow,
.summary-label,
.card-label {
  margin: 0;
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-eyebrow,
.teal {
  color: var(--teal-bright);
}

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

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  padding: 12px 20px;
  font-size: 0.94rem;
  font-weight: 720;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary,
.button-primary-dark {
  background: var(--amber);
  color: var(--ink);
}

.button-primary:hover,
.button-primary-dark:hover {
  background: var(--amber-hover);
}

.button-secondary {
  border: 1px solid rgb(255 255 255 / 40%);
  color: #ffffff;
}

.button-secondary:hover {
  border-color: #ffffff;
  background: #ffffff;
  color: var(--ink);
}

.button-primary-dark {
  background: var(--ink);
  color: #ffffff;
}

.button-primary-dark:hover {
  background: var(--teal);
  color: #ffffff;
}

.button-outline {
  border: 1px solid #c8d0db;
  background: #ffffff;
}

.button-outline:hover {
  border-color: var(--ink);
}

.summary-band {
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 28px 0;
}

.summary-grid p:last-child {
  margin: 8px 0 0;
  font-size: 1.08rem;
  font-weight: 700;
}

.section,
.about-section,
.contact-section {
  padding: 80px 0;
}

.section-heading {
  max-width: 760px;
}

h2 {
  margin: 16px 0 0;
  font-size: 2.55rem;
  font-weight: 720;
  line-height: 1.12;
}

h3 {
  margin: 12px 0 0;
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.22;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 24px;
  box-shadow: 0 1px 2px rgb(17 24 39 / 5%);
}

.card p:last-child,
.portfolio-copy p,
.about-copy p,
.contact-inner p {
  color: var(--muted);
  line-height: 1.72;
}

.card p:last-child {
  margin: 16px 0 0;
}

.portfolio-section {
  background: var(--ink);
  color: #ffffff;
  padding: 80px 0;
}

.portfolio-inner,
.about-inner,
.contact-inner {
  display: grid;
  grid-template-columns: 0.96fr 1.04fr;
  gap: 48px;
}

.portfolio-copy p {
  color: rgb(255 255 255 / 72%);
  margin: 20px 0 0;
}

.portfolio-copy .button {
  margin-top: 32px;
}

.theme-list {
  display: grid;
  gap: 12px;
}

.theme-list div {
  border: 1px solid rgb(255 255 255 / 12%);
  border-radius: 8px;
  background: rgb(255 255 255 / 6%);
  padding: 18px;
  font-size: 1.05rem;
  font-weight: 650;
  line-height: 1.42;
}

.about-section {
  background: #ffffff;
}

.about-copy {
  display: grid;
  gap: 20px;
  font-size: 1.08rem;
}

.about-copy p {
  margin: 0;
}

.principles-section {
  border-block: 1px solid var(--line);
  background: var(--soft);
  padding: 64px 0;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 32px;
}

.principles-grid div {
  min-height: 136px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 20px;
  font-weight: 700;
  line-height: 1.5;
}

.contact-section {
  background: #ffffff;
}

.contact-inner {
  align-items: end;
}

.contact-inner p {
  margin: 20px 0 0;
  font-size: 1.08rem;
}

@media (max-width: 840px) {
  .nav,
  .section-inner,
  .summary-grid,
  .portfolio-inner,
  .about-inner,
  .contact-inner,
  .hero-content {
    width: min(100% - 32px, 1120px);
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 84svh;
  }

  .hero-overlay {
    background: linear-gradient(
      180deg,
      rgb(17 24 39 / 70%) 0%,
      rgb(17 24 39 / 94%) 76%
    );
  }

  .hero-content {
    padding: 96px 0 36px;
  }

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

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

  .summary-grid,
  .expertise-grid,
  .portfolio-inner,
  .about-inner,
  .principles-grid,
  .contact-inner {
    grid-template-columns: 1fr;
  }

  h2 {
    font-size: 2rem;
  }

  .section,
  .about-section,
  .contact-section,
  .portfolio-section {
    padding: 64px 0;
  }

  .principles-grid div {
    min-height: auto;
  }
}

@media (max-width: 440px) {
  .brand {
    max-width: 120px;
  }

  .hero-content h1 {
    font-size: 2.72rem;
  }

  .button {
    width: 100%;
  }
}