:root {
  --bg: #0f1220;
  --card: #171a2e;
  --text: #f4f6fb;
  --muted: #a5accf;
  --accent: #6cf2c2;
  --accent-dark: #4bd9a6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, sans-serif;
  background: linear-gradient(180deg, #0f1220, #0b0d18);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 960px;
  padding: 0 1.5rem;
  margin: 0 auto;
}

.hero {
  padding: 6rem 0 4rem;
  text-align: center;
}

.hero h1 {
  font-size: 3.5rem;
  margin: 0;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.tagline {
  font-size: 1.4rem;
  color: var(--accent);
  margin-top: 0.5rem;
}

.intro {
  max-width: 600px;
  margin: 1.5rem auto 2.5rem;
  color: var(--muted);
}

.cta {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.button {
  padding: 0.75rem 1.4rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: transform 0.15s ease, background 0.15s ease;
}

.button.primary {
  background: var(--accent);
  color: #0b0d18;
}

.button.primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.button.secondary {
  border: 1px solid #2c315f;
  color: var(--text);
}

.button.secondary:hover {
  background: #1a1f3f;
}

.features {
  padding: 4rem 0;
}

.grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.feature {
  background: var(--card);
  padding: 1.8rem;
  border-radius: 16px;
}

.feature h3 {
  margin-top: 0;
}

.projects {
  padding: 3rem 0 4rem;
  text-align: center;
}

.projects h2 {
  margin-bottom: 0.5rem;
}

.project-list {
  list-style: none;
  padding: 0;
  margin-top: 1.5rem;
}

.project-list li {
  margin: 0.6rem 0;
}

footer {
  border-top: 1px solid #1c2042;
  padding: 2rem 0;
}

.footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.muted {
  color: var(--muted);
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 2.6rem;
  }
}
/* --- Language switcher (flags) --- */
.lang-switch {
  position: absolute;
  top: 18px;
  right: 18px;
  display: flex;
  gap: 8px;
}

.hero .container {
  position: relative;
}

.flag-btn {
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 6px;
  border: 1px solid #2c315f;
  background: rgba(23, 26, 46, 0.65);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.flag-btn img {
  width: 22px;
  height: 16px;
  display: block;
}

.flag-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
  border-color: rgba(108, 242, 194, 0.6);
}

.flag-btn.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108, 242, 194, 0.18);
}
/* --- Footer Swiss flag --- */
.footer-country {
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-flag {
  width: 18px;
  height: 18px;
  display: inline-block;
}
/* --- Strong, obvious hover for primary buttons --- */
.button.primary{
  position: relative;
  box-shadow: 0 10px 30px rgba(108, 242, 194, 0.10);
  transition:
    transform 0.12s ease,
    box-shadow 0.12s ease,
    filter 0.12s ease;
  will-change: transform, box-shadow;
}

/* Add a soft glow "halo" */
.button.primary::after{
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 999px;
  background: rgba(108, 242, 194, 0.20);
  filter: blur(18px);
  opacity: 0;
  transition: opacity 0.12s ease;
  z-index: -1;
}

/* Much stronger hover */
.button.primary:hover{
  transform: translateY(-5px) scale(1.03);
  filter: brightness(1.06);
  box-shadow:
    0 18px 50px rgba(108, 242, 194, 0.28),
    0 0 0 4px rgba(108, 242, 194, 0.22);
}

.button.primary:hover::after{
  opacity: 1;
}

/* Clear keyboard focus too (important for accessibility) */
.button.primary:focus-visible{
  outline: none;
  box-shadow:
    0 0 0 4px rgba(108, 242, 194, 0.35),
    0 18px 50px rgba(108, 242, 194, 0.22);
}

/* Optional: make "click" feel snappy */
.button.primary:active{
  transform: translateY(-1px) scale(0.99);
  box-shadow:
    0 10px 25px rgba(108, 242, 194, 0.18);
}