:root {
  --blue-900: #0a2463;
  --blue-700: #173db3;
  --blue-100: #e8f0ff;
  --yellow-400: #ffd43b;
  --yellow-200: #fff3bf;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(160deg, var(--blue-900), var(--blue-700));
  color: #ffffff;
  line-height: 1.6;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2rem;
}

.brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: #ffffff;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.brand span {
  color: var(--yellow-400);
}

.site-nav a {
  color: var(--blue-100);
  text-decoration: none;
  margin-left: 1.5rem;
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--yellow-400);
}

.hero {
  max-width: 820px;
  margin: 0 auto;
  padding: 5rem 2rem 4rem;
  text-align: center;
}

.hero-kicker {
  display: inline-block;
  background: var(--yellow-400);
  color: var(--blue-900);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  margin: 0;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.15;
  margin: 1.5rem 0 1rem;
}

.accent {
  color: var(--yellow-400);
}

.hero-text {
  font-size: 1.15rem;
  color: var(--blue-100);
  max-width: 34rem;
  margin: 0 auto 2rem;
}

.button {
  display: inline-block;
  background: var(--yellow-400);
  color: var(--blue-900);
  font-weight: 700;
  text-decoration: none;
  padding: 0.8rem 1.8rem;
  border-radius: 8px;
  transition: transform 0.15s ease, background 0.15s ease;
}

.button:hover {
  background: var(--yellow-200);
  transform: translateY(-2px);
}

.services {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 2rem 5rem;
  text-align: center;
}

.services h2 {
  font-size: 2rem;
  margin: 0 0 0.5rem;
}

.section-hint {
  color: var(--yellow-400);
  margin: 0 0 2.5rem;
  font-weight: 600;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.service-card {
  position: relative;
  height: 280px;
  perspective: 1200px;
  cursor: pointer;
  outline: none;
}

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 0.6s ease;
}

.service-card:hover .card-inner,
.service-card:focus .card-inner {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.75rem;
}

.card-front {
  background: var(--yellow-400);
  color: var(--blue-900);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.card-icon {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.card-front h3 {
  margin: 0;
  font-size: 1.4rem;
}

.card-hint {
  margin: 0.75rem 0 0;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.75;
}

.card-back {
  background: var(--blue-100);
  color: var(--blue-900);
  transform: rotateY(180deg);
  border: 2px solid var(--yellow-400);
}

.card-back h3 {
  margin: 0 0 0.75rem;
  font-size: 1.3rem;
}

.card-back p {
  margin: 0;
  font-size: 0.95rem;
}

.contact {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem 5rem;
}

.contact h2 {
  text-align: center;
  font-size: 2rem;
  margin: 0 0 2rem;
}

.contact-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  background: var(--yellow-400);
  color: var(--blue-900);
  border-radius: 16px;
  padding: 2.5rem;
}

.contact-card h3 {
  margin: 0 0 0.75rem;
}

.contact-card address {
  font-style: normal;
  line-height: 1.7;
}

.contact-details p {
  display: flex;
  flex-direction: column;
  margin: 0 0 1rem;
}

.contact-details span {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
}

.contact-details a {
  color: var(--blue-900);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--blue-700);
}

.contact-details a:hover {
  border-bottom-color: var(--blue-900);
}

@media (prefers-reduced-motion: reduce) {
  .card-inner,
  .button {
    transition: none;
  }
}

.site-footer {
  text-align: center;
  padding: 1.5rem 2rem 2.5rem;
  color: var(--blue-100);
  font-size: 0.9rem;
}