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

html,
body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  color: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  position: relative;
  background: #111;
}

/* ── Background image with dark overlay ── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: url("../images/bjjstyle-background.webp") center / cover no-repeat;
  filter: brightness(0.35);
  z-index: -1;
}

/* ── Site title ── */
.site-title {
  text-align: center;
  padding-top: 2.5rem;
  position: absolute;
  top: 0;
  width: 100%;
}

.site-title h1 {
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
}

/* ── Main content ── */
main {
  text-align: center;
  padding: 0 1.5rem;
  max-width: 620px;
  width: 100%;
}

.headline {
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

.subtitle {
  font-size: 1rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 2rem;
}

/* ── Email form ── */
.signup-form {
  display: flex;
  justify-content: center;
  gap: 0;
  max-width: 460px;
  margin: 0 auto 0.75rem;
}

.signup-form input[type="email"] {
  flex: 1;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-right: none;
  background: transparent;
  color: #fff;
  outline: none;
  transition: border-color 0.2s;
}

.signup-form input[type="email"]::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.signup-form input[type="email"]:focus {
  border-color: rgba(255, 255, 255, 0.8);
}

.signup-form button {
  padding: 0.75rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid #fff;
  background: #fff;
  color: #111;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
}

.signup-form button:hover {
  background: transparent;
  color: #fff;
}

.privacy-note {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ── Button loading state ── */
.btn-loading {
  display: none;
  align-items: center;
  gap: 0.4rem;
}

.spinner {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.signup-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* ── Email validation error ── */
.signup-form input.error {
  border-color: #e55;
}

/* ── Form messages ── */
.form-message {
  margin-top: 1rem;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
}

.form-error {
  color: #f88;
}

/* ── Hide reCAPTCHA badge (notice text satisfies Google ToS) ── */
.grecaptcha-badge {
  visibility: hidden !important;
}

/* ── reCAPTCHA notice ── */
.recaptcha-notice {
  margin-top: 1.5rem;
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.35);
  max-width: 360px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

.recaptcha-notice a {
  color: rgba(255, 255, 255, 0.45);
  text-decoration: underline;
}

/* ── Footer ── */
footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  text-align: center;
  padding-bottom: 2rem;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
}

.social-links a {
  color: rgba(255, 255, 255, 0.55);
  transition: color 0.2s;
  display: flex;
}

.social-links a:hover {
  color: #fff;
}

/* ── Responsive ── */
@media (max-width: 600px) {
  .headline {
    font-size: 1.6rem;
  }

  .subtitle {
    font-size: 0.9rem;
  }

  .signup-form {
    flex-direction: column;
    gap: 0;
  }

  .signup-form input[type="email"] {
    border-right: 1px solid rgba(255, 255, 255, 0.4);
    border-bottom: none;
  }

  .signup-form button {
    width: 100%;
  }
}