.signup {
  background-color: var(--color-bg-secondary);
  padding-block: clamp(5rem, 10vw, 9rem);
}

.signup__container {
  max-width: 620px;
}

.signup__header {
  margin-bottom: var(--space-10);
}

.signup__header h2 { margin-bottom: var(--space-4); }

.signup__header p {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ─── Form container card ────────────────────────── */
.signup__form-container {
  background: var(--color-bg-card);
  border: 1px solid var(--color-accent-red-border);
  border-radius: var(--radius-xl);
  padding: clamp(2rem, 4vw, 3rem);
  box-shadow: var(--shadow-glow);
}

/* ─── Form layout ────────────────────────────────── */
.signup-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* ─── Labels ─────────────────────────────────────── */
.form-label {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.form-label-optional {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

/* ─── Inputs ─────────────────────────────────────── */
.form-input {
  width: 100%;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.875rem 1rem;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  transition:
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease,
    background-color var(--duration-fast) ease;
  -webkit-appearance: none;
  appearance: none;
}

.form-input::placeholder { color: var(--color-text-muted); }

.form-input:hover {
  border-color: var(--color-metallic-dark);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent-red);
  box-shadow: 0 0 0 3px rgba(204, 34, 34, 0.15);
  background-color: var(--color-bg-card);
}

.form-input.is-error {
  border-color: #e05555;
  box-shadow: 0 0 0 3px rgba(224, 85, 85, 0.15);
}

/* ─── Error messages ─────────────────────────────── */
.form-error {
  font-size: 0.8125rem;
  color: #e05555;
  line-height: 1.4;
  min-height: 1.4em;
  display: block;
}

/* ─── Submit button ──────────────────────────────── */
#submit-btn {
  margin-top: var(--space-2);
  gap: var(--space-3);
}

/* ─── Disclaimer ─────────────────────────────────── */
.form-disclaimer {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-align: center;
  justify-content: center;
  line-height: 1.5;
  margin-top: var(--space-1);
}

.form-disclaimer svg { flex-shrink: 0; color: var(--color-text-muted); }

/* ─── Success state ──────────────────────────────── */
.signup-success {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.signup-success__icon { color: var(--color-accent-red); }

.signup-success h3 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.signup-success p {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

/* Checkmark draw animation */
.check-path {
  stroke-dasharray: 50;
  stroke-dashoffset: 50;
  animation: drawCheck 0.5s ease forwards 0.3s;
}

@keyframes drawCheck {
  to { stroke-dashoffset: 0; }
}