:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #64748b;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --border: #d7dee8;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.navbar {
  width: min(1120px, calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Sora", Arial, Helvetica, sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-dark);
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  flex: 0 0 auto;
}

.nav-links,
.footer-links {
  display: flex;
  align-items: center;
  padding: 0;
  margin: 0;
  list-style: none;
}

.nav-links {
  gap: 32px;
}

.footer-links {
  gap: 20px;
}

.nav-links a,
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 600;
}

.nav-links i,
.footer-links i {
  font-size: 1.1rem;
}

.nav-links a:hover,
.footer-links a:hover {
  color: var(--accent-dark);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  background: var(--surface);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.menu-toggle i {
  font-size: 1.25rem;
}

.page-content {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 88px;
}

.intro {
  position: relative;
  padding: 24px 0;
  text-align: center;
}

.hero-logo {
  display: block;
  width: min(420px, 100%);
  height: auto;
  margin: 0 auto;
  -webkit-mask-image: linear-gradient(
    to bottom,
    #000 0%,
    #000 34%,
    rgba(0, 0, 0, 0.82) 46%,
    rgba(0, 0, 0, 0.46) 60%,
    rgba(0, 0, 0, 0.16) 72%,
    transparent 84%
  );
  mask-image: linear-gradient(
    to bottom,
    #000 0%,
    #000 34%,
    rgba(0, 0, 0, 0.82) 46%,
    rgba(0, 0, 0, 0.46) 60%,
    rgba(0, 0, 0, 0.16) 72%,
    transparent 84%
  );
}

.message-body {
  position: relative;
  z-index: 1;
  width: min(780px, 100%);
  margin: -54px auto 0;
  padding: 14px 20px 0;
}

p {
  max-width: 760px;
  margin: 0 auto 16px;
  color: var(--muted);
  font-size: 1.18rem;
}

.clean-message h1 {
  margin: 0 0 18px;
  font-family: "Sora", Arial, Helvetica, sans-serif;
  color: var(--text);
  font-size: 1.38rem;
  font-weight: 700;
  line-height: 1.3;
}

.clean-message h2 {
  margin: 28px 0 12px;
  font-family: "Sora", Arial, Helvetica, sans-serif;
  color: var(--text);
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.3;
}

.social-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent-dark);
  font-weight: 700;
}

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

.social-links i {
  font-size: 1.15rem;
}

.site-footer {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  flex-wrap: wrap;
  text-align: center;
}

.site-footer div {
  display: flex;
  align-items: center;
  gap: 24px;
}

.site-footer strong {
  color: var(--text);
}

@media (max-width: 680px) {
  .navbar {
    min-height: 64px;
    flex-wrap: wrap;
    padding: 14px 0;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    width: 100%;
    align-items: stretch;
    gap: 8px;
    padding: 8px 0 0;
  }

  .nav-links.is-open {
    display: flex;
    flex-direction: column;
  }

  .nav-links a {
    display: inline-flex;
    padding: 10px 0;
  }

  .nav-links a,
  .social-links a,
  .footer-links a {
    gap: 14px;
  }

  .page-content {
    padding: 40px 0;
  }

  .intro {
    padding-top: 24px;
  }

  .site-footer {
    gap: 14px;
  }
}