* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body.manga-body {
  font-family: 'Inter', sans-serif;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(120, 119, 198, 0.22), transparent 32%),
    radial-gradient(circle at 85% 10%, rgba(56, 189, 248, 0.16), transparent 24%),
    linear-gradient(180deg, #09090b 0%, #111827 100%);
  color: #f8fafc;
}

.manga-shell {
  max-width: 860px;
  margin: 0 auto;
  min-height: 100vh;
  padding: 28px 20px 88px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: rgba(8, 12, 20, 0.64);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  backdrop-filter: blur(14px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.18);
}

.nav-brand {
  font-family: 'Audiowide', sans-serif;
  font-size: 1.28rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: #f8fafc;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.nav-links a {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: #38bdf8;
}

.manga-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 36px 0 8px;
  gap: 14px;
}

.avatar {
  width: 104px;
  height: 104px;
  border-radius: 999px;
  object-fit: cover;
  border: 2px solid rgba(255,255,255,0.12);
  box-shadow: 0 16px 40px rgba(56,189,248,0.14);
}

.manga-hero h1 {
  font-family: 'Audiowide', sans-serif;
  font-size: clamp(2.8rem, 8vw, 4.6rem);
  line-height: 0.95;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.manga-note {
  color: #cbd5e1;
  font-size: 1rem;
}

.signup-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  padding: 28px;
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.22);
}

.section-head {
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: #94a3b8;
}

.signup-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.signup-form input,
.signup-form textarea {
  width: 100%;
  padding: 15px 18px;
  font-size: 1rem;
  font-family: 'Inter', sans-serif;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  color: #fff;
  transition: all 0.25s ease;
}

.signup-form input::placeholder,
.signup-form textarea::placeholder {
  color: #8a94a8;
}

.signup-form input:focus,
.signup-form textarea:focus {
  outline: none;
  border-color: rgba(56, 189, 248, 0.55);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.08);
}

.signup-form textarea {
  resize: vertical;
  min-height: 92px;
}

.btn {
  padding: 14px 22px;
  font-size: 0.95rem;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
  color: #0a0a1a;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(56, 189, 248, 0.18);
}

@media (max-width: 760px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    width: 100%;
    gap: 12px;
  }
}

@media (max-width: 640px) {
  .manga-shell {
    padding: 16px 16px 56px;
    gap: 22px;
  }

  .signup-box {
    padding: 22px;
    border-radius: 20px;
  }

  .avatar {
    width: 92px;
    height: 92px;
  }
}