:root {
  --teal: #005B6A;
  --teal-deep: #004752;
  --coral: #FF6F61;
  --off-white: #F8F9FA;
  --light-gray: #E9ECEF;
  --dark-gray: #6C757D;
  --ink: #212529;
  --radius: 18px;
  --shadow: 0 18px 48px rgba(0, 91, 106, 0.12);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 111, 97, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(0, 91, 106, 0.18), transparent 28%),
    linear-gradient(180deg, #eef7f8 0%, var(--off-white) 42%, #ffffff 100%);
  min-height: 100vh;
}

a { color: var(--teal); }
.wrap { width: min(1080px, calc(100% - 2rem)); margin: 0 auto; }

.lang-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  padding: 0.85rem 0 0;
}
.lang-label {
  font-size: 0.85rem;
  color: var(--dark-gray);
  font-weight: 600;
}
.lang-select {
  appearance: none;
  border: 1px solid rgba(0, 91, 106, 0.22);
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23005B6A' d='M1 1l5 5 5-5'/%3E%3C/svg%3E") no-repeat right 0.7rem center;
  border-radius: 999px;
  padding: 0.45rem 2rem 0.45rem 0.9rem;
  font: inherit;
  font-size: 0.9rem;
  color: var(--teal-deep);
  cursor: pointer;
}
.lang-select:focus {
  outline: 2px solid rgba(255, 111, 97, 0.45);
  outline-offset: 2px;
}

.hero {
  padding: 3.5rem 0 2.5rem;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
}

.logo {
  display: block;
  width: min(220px, 42vw);
  height: auto;
  margin: 0 0 1rem;
  filter: drop-shadow(0 12px 28px rgba(0, 91, 106, 0.18));
}

.brand {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin: 0 0 0.8rem;
}
.brand .cost { color: var(--teal); }
.brand .buddy { color: var(--coral); }

.lead {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--dark-gray);
  max-width: 36rem;
}

.panel {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 91, 106, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.5rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 0;
  border-radius: 999px;
  padding: 0.9rem 1.25rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.btn-primary { background: var(--coral); color: #fff; }
.btn-secondary { background: var(--teal); color: #fff; }
.btn-ghost { background: transparent; color: var(--teal); border: 1px solid rgba(0, 91, 106, 0.25); }

.section { padding: 1.5rem 0 3rem; }
.section h2 {
  margin: 0 0 0.75rem;
  color: var(--teal);
  font-size: 1.6rem;
}
.muted { color: var(--dark-gray); line-height: 1.55; }

.grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 1.25rem;
}
.card h3 { margin: 0 0 0.5rem; color: var(--teal-deep); }
.card p { margin: 0; color: var(--dark-gray); line-height: 1.5; }

.code-box {
  margin-top: 1rem;
  padding: 1rem 1.1rem;
  border-radius: 14px;
  background: var(--off-white);
  border: 1px dashed var(--teal);
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-align: center;
  color: var(--teal);
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-top: 1rem;
  color: var(--dark-gray);
  font-size: 0.95rem;
}

footer {
  padding: 2rem 0 3rem;
  color: var(--dark-gray);
  font-size: 0.9rem;
}

@media (max-width: 860px) {
  .hero, .grid { grid-template-columns: 1fr; }
}