.signup-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, color-mix(in srgb, var(--mj-brand) 10%, transparent), transparent 28%),
    linear-gradient(135deg, var(--mj-bg-soft) 0%, var(--mj-bg) 50%, var(--mj-card) 100%);
  color: var(--mj-text);
  transition: background 180ms ease, color 180ms ease;
}

html[data-theme="dark"] .signup-page {
  background:
    radial-gradient(circle at 14% 10%, color-mix(in srgb, var(--mj-brand) 24%, transparent), transparent 28%),
    linear-gradient(135deg, var(--mj-bg) 0%, var(--mj-bg-soft) 52%, var(--mj-card) 100%);
}

.signup-main {
  width: min(100% - 40px, 1120px);
  margin: 2rem auto 3rem;
}

.theme-toggle {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  z-index: 3;
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--mj-border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--mj-card) 88%, transparent);
  color: var(--mj-text);
  box-shadow: 0 10px 26px var(--mj-shadow);
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
}

.theme-toggle [data-theme-icon] { font-size: 0; }

.theme-toggle [data-theme-icon]::before {
  content: "\263E";
  font-size: 1.1rem;
  line-height: 1;
}

html[data-theme="dark"] .theme-toggle [data-theme-icon]::before { content: "\2600"; }

.signup-shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  overflow: hidden;
  border: 1px solid var(--mj-border);
  border-radius: 28px;
  background: var(--mj-card);
  box-shadow: 0 28px 70px var(--mj-shadow);
}

.signup-info,
.signup-card { padding: 3rem; }

.signup-info {
  background: linear-gradient(180deg, var(--mj-bg-soft) 0%, var(--mj-panel) 100%);
}

html[data-theme="dark"] .signup-info { background: linear-gradient(180deg, var(--mj-panel) 0%, var(--mj-card) 100%); }

.signup-info h1 {
  margin: 0 0 1.25rem;
  color: var(--mj-brand);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.65rem, 2.45vw, 2.55rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

html[data-theme="dark"] .signup-info h1 { color: var(--mj-text); }

.signup-info > p {
  margin: 0 0 2.4rem;
  color: var(--mj-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.signup-feature-list { display: grid; gap: 1.25rem; }

.signup-feature-list article {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 1rem;
  align-items: start;
}

.signup-feature-list span {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--mj-border);
  border-radius: 14px;
  background: color-mix(in srgb, var(--mj-card) 78%, transparent);
  color: var(--mj-brand);
  font-weight: 800;
}

.signup-feature-list h2,
.form-group label {
  color: var(--mj-brand);
  font-weight: 800;
}

.signup-feature-list h2 {
  margin: 0 0 0.35rem;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.05rem;
}

html[data-theme="dark"] .signup-feature-list h2,
html[data-theme="dark"] .form-group label { color: var(--mj-text); }

.signup-feature-list p {
  margin: 0;
  color: var(--mj-muted);
  line-height: 1.55;
}

.signup-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.signup-card-logo {
  width: 170px;
  margin: 0 auto 1.2rem;
  display: block;
}

.signup-heading { text-align: center; }

.signup-heading h2 {
  margin: 0 0 0.4rem;
  color: var(--mj-text);
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.45rem, 2vw, 2rem);
}

.signup-subtitle {
  margin: 0 0 1.6rem;
  color: var(--mj-muted);
  line-height: 1.55;
}

.signup-form { display: grid; gap: 1rem; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
}

.input-field {
  width: 100%;
  min-height: 52px;
  box-sizing: border-box;
  padding: 0 1rem;
  border: 1px solid var(--mj-border);
  border-radius: 12px;
  background: var(--mj-bg-soft);
  color: var(--mj-text);
  font: inherit;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

html[data-theme="dark"] .input-field { background: var(--mj-panel); }

.input-field::placeholder { color: color-mix(in srgb, var(--mj-muted) 76%, transparent); }

.input-field:focus {
  border-color: var(--mj-brand);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--mj-brand) 14%, transparent);
}

.form-help,
.signup-safe-text {
  margin: 0.45rem 0 0;
  color: var(--mj-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.signup-security-note {
  padding: 1rem;
  border: 1px solid var(--mj-border);
  border-radius: 16px;
  background: var(--mj-panel);
  color: var(--mj-muted);
  font-size: 0.94rem;
  line-height: 1.55;
}

.signup-message {
  display: none;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  font-weight: 700;
  line-height: 1.45;
}

.signup-message.is-visible { display: block; }

.signup-message.is-error {
  border: 1px solid color-mix(in srgb, var(--mj-brand) 34%, var(--mj-border));
  background: color-mix(in srgb, var(--mj-brand) 10%, var(--mj-card));
  color: var(--mj-brand);
}

.signup-message.is-success {
  border: 1px solid color-mix(in srgb, var(--mj-brand) 24%, var(--mj-border));
  background: color-mix(in srgb, var(--mj-brand) 8%, var(--mj-card));
  color: var(--mj-text);
}

.signup-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}

.btn {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  border-radius: 12px;
  border: 1px solid transparent;
  padding: 0.8rem 1.25rem;
  font: inherit;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
}

.btn:hover,
.theme-toggle:hover { transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--mj-brand) 0%, var(--mj-brand-strong) 100%);
  color: #fff;
  box-shadow: 0 14px 30px color-mix(in srgb, var(--mj-brand) 26%, transparent);
}

.btn-secondary {
  background: var(--mj-card);
  color: var(--mj-brand);
  border-color: var(--mj-border);
}

.signup-safe-text { text-align: center; }

.signup-footer {
  width: min(100% - 40px, 1120px);
  margin: 0 auto;
  padding: 1.5rem 0 2rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--mj-muted);
  border-top: 1px solid var(--mj-border);
}

.signup-footer nav { display: flex; gap: 1.2rem; }

.signup-footer a {
  color: var(--mj-brand);
  font-weight: 700;
  text-decoration: none;
}

.signup-footer a:hover { text-decoration: underline; }

@media (min-width: 901px) {
  .signup-page { display: flex; flex-direction: column; }
  .signup-main { flex: 1; display: flex; flex-direction: column; justify-content: center; margin-top: 0; margin-bottom: 0; }
  .signup-footer { flex-shrink: 0; }
}

@media (max-width: 900px) {
  .signup-page {
    background:
      radial-gradient(circle at 12% 6%, rgba(123, 15, 34, 0.12), transparent 30%),
      linear-gradient(180deg, #f7efe5 0%, #efe1d0 100%);
  }

  html[data-theme="dark"] .signup-page {
    background:
      radial-gradient(circle at 12% 6%, rgba(169, 22, 50, 0.18), transparent 30%),
      linear-gradient(180deg, #242932 0%, #171b21 100%);
  }

  .signup-main,
  .signup-footer { width: min(100% - 28px, 560px); }

  .theme-toggle {
    top: 0.85rem;
    right: 0.85rem;
    border-color: #d6c3ae;
    background: #fbf7f0;
    box-shadow: 0 12px 24px rgba(80, 46, 25, 0.14);
  }

  html[data-theme="dark"] .theme-toggle {
    border-color: #4a515d;
    background: #2e343d;
    color: #f7f2ed;
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.34);
  }

  .signup-shell {
    grid-template-columns: 1fr;
    border-color: #d8c3ad;
    background: #fffaf3;
    box-shadow: 0 22px 46px rgba(92, 55, 28, 0.18);
  }

  html[data-theme="dark"] .signup-shell {
    border-color: #48505d;
    background: #2b313a;
    box-shadow: 0 24px 52px rgba(0, 0, 0, 0.42);
  }

  .signup-info { display: none; }

  .signup-subtitle,
  .form-help,
  .signup-safe-text,
  .signup-security-note,
  .signup-footer {
    color: #6e5b49;
  }

  html[data-theme="dark"] .signup-subtitle,
  html[data-theme="dark"] .form-help,
  html[data-theme="dark"] .signup-safe-text,
  html[data-theme="dark"] .signup-security-note,
  html[data-theme="dark"] .signup-footer {
    color: #cbd2dc;
  }

  .input-field {
    border-color: #cfb9a2;
    background: #f4ecdf;
  }

  html[data-theme="dark"] .input-field {
    border-color: #56606d;
    background: #20262e;
    color: #f7f2ed;
  }

  .signup-security-note {
    border-color: #d3bea7;
    background: #f5ecdf;
  }

  html[data-theme="dark"] .signup-security-note {
    border-color: #4f5865;
    background: #232933;
  }

  .btn-secondary {
    background: #fffaf3;
    border-color: #cdb59c;
  }

  html[data-theme="dark"] .btn-secondary {
    background: #2a3039;
    border-color: #5a6472;
    color: #f7f2ed;
  }

  .form-grid,
  .signup-actions { grid-template-columns: 1fr; }

  .signup-footer {
    display: grid;
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .signup-footer nav {
    justify-content: center;
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .signup-main {
    width: min(100% - 24px, 520px);
    margin-top: 1rem;
  }

  .signup-card { padding: 2rem 1.25rem; }

  .signup-card-logo { width: 150px; }

  .signup-footer { width: min(100% - 24px, 520px); }
}

@media (max-width: 380px) {
  .signup-main,
  .signup-footer { width: min(100% - 20px, 560px); }
  .signup-card { padding-left: 1rem; padding-right: 1rem; }
}