/* ──────────────────────────────────────────
   AUTH SECTION — LIGHT THEME
────────────────────────────────────────── */
#sign-up-in-section {
  text-align: center;
}

#sign-up-in-section h1 {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: var(--font-size-5);
  margin-top: 0.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.01em;
}

#sign-up-in-section form {
  box-sizing: border-box;
  text-align: left;
  border-radius: var(--radius-lg);
  padding: 2.4rem 1.6rem;
  width: 90%;
  margin: 2.5rem auto;
  position: relative;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-panel), 0 0 0 1px rgba(124, 58, 237, 0.04);
  animation: fadeUp 400ms ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

#sign-up-in-section p {
  margin: 1.2rem auto;
  color: var(--text-secondary);
}

#sign-up-in-section label {
  display: block;
  margin-bottom: 0.45rem;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: var(--font-size-0);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

#sign-up-in-section .field-group {
  margin-bottom: 1.1rem;
}

#sign-up-in-section input {
  box-sizing: border-box;
  outline: none;
  font: inherit;
  padding: 0.8rem 1rem;
  width: 100%;
  color: var(--text-primary);
  font-size: var(--font-size-1);
  border: 1px solid rgba(124, 58, 237, 0.2);
  border-radius: var(--radius-sm);
  background: #ffffff;
  transition: border-color 200ms ease, box-shadow 200ms ease;
  caret-color: var(--accent-violet);
}

#sign-up-in-section input::placeholder {
  color: var(--text-muted);
}

/* Override browser autofill */
#sign-up-in-section input:-webkit-autofill,
#sign-up-in-section input:-webkit-autofill:hover,
#sign-up-in-section input:-webkit-autofill:focus {
  -webkit-box-shadow: 0 0 0 1000px #ffffff inset !important;
  -webkit-text-fill-color: var(--text-primary) !important;
  transition: background-color 5000s ease-in-out 0s;
}

#sign-up-in-section button {
  display: block;
  margin: 1.2rem auto;
  width: 100%;
}

#sign-up-in-section .btn-alt {
  border-color: var(--border-glass);
  background: rgba(124, 58, 237, 0.05);
  color: var(--text-primary);
}

#sign-up-in-section .auth-error-info {
  box-sizing: border-box;
  background: var(--color-error-box);
  border: 1px solid rgba(220, 38, 38, 0.2);
  margin: 0.5rem auto;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-0);
  color: var(--color-error-text);
  width: 100%;
  animation: shakeX 400ms ease;
}

@keyframes shakeX {
  0%, 100% { transform: translateX(0); }
  20%, 60%  { transform: translateX(-6px); }
  40%, 80%  { transform: translateX(6px); }
}

#sign-up-in-form-loader {
  margin: 1rem auto;
  width: 1.1rem;
  height: 1.1rem;
}

#sign-up-in-section .form-success-info {
  box-sizing: border-box;
  position: absolute;
  left: 0;
  top: -3.3rem;
  padding: 1rem 1.5rem;
  font-size: var(--font-size-0);
  background: rgba(124, 58, 237, 0.08);
  border: 1px solid var(--border-accent);
  color: var(--text-accent);
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 3rem;
  width: 100%;
  border-radius: var(--radius-sm);
}

#sign-up-in-section .form-success-info p {
  margin: 0;
  color: var(--text-accent);
}

#sign-up-in-section .form-success-info button {
  font: inherit;
  border: none;
  padding: 0;
  background-color: transparent;
  margin: 0;
  cursor: pointer;
  color: var(--text-accent);
  width: auto;
}

#sign-up-in-section .form-success-info button:disabled {
  color: inherit;
}

/* ── Responsive ── */
@media (min-width: 480px) {
  #sign-up-in-section form {
    width: 80%;
    max-width: 30rem;
    padding: 2.6rem 2.2rem;
  }
  .auth-error-info { font-size: var(--font-size-1); }
}

@media (min-width: 768px) {
  #sign-up-in-section input { font-size: var(--font-size-1-5); }
  #sign-up-in-section h1    { font-size: var(--font-size-7); }
}

@media (hover: hover) {
  #sign-up-in-section .btn-alt:hover {
    background: rgba(124, 58, 237, 0.09);
    border-color: rgba(124, 58, 237, 0.3);
  }
  #sign-up-in-section input:focus {
    border-color: var(--accent-violet);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.12);
  }
}

@media (hover: none) {
  #sign-up-in-section input:focus {
    border-color: var(--accent-violet);
    box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.12);
  }
}