:root {
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --accent: #1f7a4f;
  --accent-dark: #145c3a;
  --accent-soft: #e8f4ed;
  --border: #e5e7eb;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: var(--accent);
}

.wrap {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a:hover {
  color: var(--accent);
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
}

.btn-ghost {
  border-color: var(--border);
  background: var(--card);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- Hero ---- */
.hero {
  background: linear-gradient(180deg, #eef4ff 0%, var(--bg) 320px);
  padding: 72px 0 56px;
  text-align: center;
}

.hero img.app-icon {
  width: 84px;
  height: 84px;
  border-radius: 20px;
  box-shadow: 0 10px 28px rgba(31, 122, 79, 0.22);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 20px 0 10px;
  letter-spacing: -0.5px;
}

.hero p.lead {
  font-size: clamp(1.05rem, 2.4vw, 1.25rem);
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 28px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.langs {
  margin-top: 34px;
  color: var(--muted);
  font-size: 0.92rem;
}

.lang-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 12px;
}

.lang-chips span {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 14px;
  font-size: 0.9rem;
}

/* ---- Sections ---- */
section {
  padding: 64px 0;
}

section h2 {
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  margin: 0 0 8px;
  text-align: center;
}

section p.section-sub {
  text-align: center;
  color: var(--muted);
  margin: 0 auto 40px;
  max-width: 560px;
}

.alt {
  background: var(--card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

/* ---- Feature grid ---- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.alt .card {
  background: var(--bg);
}

.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  margin-bottom: 14px;
}

.card h3 {
  margin: 0 0 6px;
  font-size: 1.08rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

/* ---- Steps ---- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  counter-reset: step;
}

.step {
  text-align: center;
}

.step .num {
  counter-increment: step;
  width: 46px;
  height: 46px;
  margin: 0 auto 14px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.step .num::before {
  content: counter(step);
}

.step h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

/* ---- Contact ---- */
.contact-box {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}

.contact-box a.email {
  font-size: 1.15rem;
  font-weight: 600;
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 18px;
}

.site-footer a:hover {
  color: var(--accent);
}

/* ---- Legal pages ---- */
.legal {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  margin: 40px auto 64px;
}

.legal h1 {
  margin-top: 0;
}

.legal h2 {
  text-align: left;
  font-size: 1.2rem;
  margin: 28px 0 8px;
}

.legal .updated {
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 640px) {
  .nav {
    gap: 14px;
  }

  .nav a.hide-sm {
    display: none;
  }

  section {
    padding: 48px 0;
  }

  .legal {
    padding: 24px;
  }
}