:root {
  --rose: #E91E63;
  --rose-soft: #FCE4EC;
  --rose-dark: #AD1457;
  --ink: #1C1B1F;
  --muted: #6B6770;
  --bg: #FFFBFC;
  --card: #FFFFFF;
  --border: rgba(0, 0, 0, 0.08);
  --radius: 16px;
  --max: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #F6EFF2;
    --muted: #A8A1AA;
    --bg: #141114;
    --card: #1F1B20;
    --border: rgba(255, 255, 255, 0.08);
    --rose-soft: #3A1E28;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Rounded", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--rose);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 48px 24px 96px;
}

/* ===== Header ===== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  max-width: var(--max);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--ink);
}

.brand img {
  width: 32px;
  height: 32px;
  border-radius: 7px;
}

.nav {
  display: flex;
  gap: 20px;
  font-size: 14px;
}

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

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

/* ===== Homepage hero ===== */
.hero {
  text-align: center;
  padding: 40px 0 32px;
}

.hero img.icon {
  width: 128px;
  height: 128px;
  border-radius: 28px;
  box-shadow: 0 20px 50px -15px rgba(233, 30, 99, 0.35);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: 44px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.hero p.tagline {
  font-size: 19px;
  color: var(--muted);
  margin: 0 0 36px;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--ink);
  color: var(--bg);
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 16px;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.download-btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
  opacity: 0.9;
}

.download-btn svg {
  width: 22px;
  height: 22px;
}

.download-btn .sub {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  text-align: left;
}

.download-btn .sub span:first-child {
  font-size: 11px;
  font-weight: 400;
  opacity: 0.8;
}

/* ===== Features grid ===== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 56px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

/* ===== Content pages ===== */
.page-title {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
}

.updated {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 40px;
}

.content section {
  margin-bottom: 32px;
}

.content h2 {
  font-size: 19px;
  font-weight: 600;
  margin: 0 0 10px;
}

.content p, .content ul {
  margin: 0 0 12px;
  color: var(--muted);
}

.content ul {
  padding-left: 20px;
}

.content li {
  margin-bottom: 6px;
}

.content strong {
  color: var(--ink);
}

/* ===== Contact page ===== */
.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  margin-top: 24px;
}

.contact-card .email {
  display: inline-block;
  font-size: 22px;
  font-weight: 600;
  color: var(--rose);
  margin: 16px 0 0;
}

/* ===== Footer ===== */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

.site-footer .links {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.site-footer .links a {
  color: var(--muted);
}

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

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .hero h1 { font-size: 34px; }
  .hero p.tagline { font-size: 17px; }
  .hero img.icon { width: 104px; height: 104px; border-radius: 22px; }
  .page-title { font-size: 26px; }
  .wrap { padding: 32px 20px 72px; }
  .site-header { padding: 16px 20px; }
  .nav { gap: 14px; font-size: 13px; }
  .brand span { display: none; }
}