/* =========================================================
   signup.css — soft, pastel, kid-game-style signup page
   ========================================================= */

.signup-body {
  height: calc(var(--vh, 1vh) * 100); /* reliable fallback, see viewport-fix.js */
  height: 100dvh; /* modern browsers override the fallback above */
  overflow-y: auto;
  -webkit-overflow-scrolling: touch; /* smooth momentum scrolling on iOS */
  background: linear-gradient(180deg, #f4effc 0%, #eef7ff 50%, #fff3f8 100%);
  color: #3a2e57;
}

/* ---- Top bar ---- */
.signup-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: calc(14px + var(--safe-top)) 20px 14px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
}

.signup-back {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  color: var(--color-purple);
  font-size: 20px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(108, 75, 255, 0.15);
}

.signup-brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 4vw, 24px);
  color: var(--color-purple);
}

.signup-brand__accent {
  color: #2fbf8f;
}

/* ---- Layout ---- */
.signup-main {
  display: flex;
  justify-content: center;
  padding: 24px 16px calc(60px + var(--safe-bottom));
}

.signup-card {
  position: relative;
  width: 100%;
  max-width: 640px;
  background: #ffffff;
  border-radius: 28px;
  padding: 32px 24px 28px;
  box-shadow: 0 16px 40px rgba(108, 75, 255, 0.12);
  overflow: hidden;
}

/* Decorative rainbow stripe across the top of the card */
.signup-rainbow {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 10px;
  background: linear-gradient(
    90deg,
    #ff9fb2,
    #ffd58a,
    #fff59d,
    #a6f3c1,
    #9fd8ff,
    #c6a8ff
  );
}

.signup-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 5vw, 30px);
  color: var(--color-purple);
  margin-top: 14px;
  text-align: center;
}

.signup-subtitle {
  font-family: var(--font-body);
  font-size: 14px;
  color: #6b5f89;
  text-align: center;
  margin-top: 8px;
  line-height: 1.5;
}

/* ---- Form structure ---- */
.signup-form {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-top: 26px;
}

.signup-fieldset {
  border: none;
  padding: 18px 16px;
  border-radius: 20px;
  background: #faf7ff;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.signup-legend {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  color: var(--color-purple);
  padding: 0 4px;
}

.signup-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.signup-grid--two {
  grid-template-columns: 1fr;
}

@media (min-width: 560px) {
  .signup-grid--two {
    grid-template-columns: 1fr 1fr;
  }
}

.signup-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.signup-field label {
  font-size: 13px;
  font-weight: 700;
  color: #6b5f89;
}

.signup-field input,
.signup-field select {
  height: 46px;
  border-radius: 14px;
  border: 2px solid #e6def7;
  background: #ffffff;
  padding: 0 14px;
  font-size: 16px; /* must be >= 16px or iOS Safari auto-zooms the page on focus */
  font-family: var(--font-body);
  color: #3a2e57;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.signup-field input:focus,
.signup-field select:focus {
  outline: none;
  border-color: var(--color-purple);
  box-shadow: 0 0 0 4px rgba(108, 75, 255, 0.12);
}

.signup-field input::placeholder {
  color: #b7aed6;
}

/* ---- Dynamic kid fields ---- */
.signup-kids-container {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.signup-kid-card {
  background: #ffffff;
  border: 2px dashed #e6def7;
  border-radius: 16px;
  padding: 14px;
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

@media (min-width: 560px) {
  .signup-kid-card {
    grid-template-columns: 2fr 1fr;
  }
}

.signup-kid-card__label {
  grid-column: 1 / -1;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  color: #2fbf8f;
}

/* ---- Password checklist ---- */
.signup-password-checklist {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 4px 4px 0;
}

.signup-password-checklist li {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12.5px;
  font-weight: 700;
  color: #a49bc2;
  transition: color 0.2s ease;
}

.signup-password-checklist li.is-met {
  color: #2fbf8f;
}

.check-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #d8cff2;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.signup-password-checklist li.is-met .check-dot {
  background: #2fbf8f;
  box-shadow: 0 0 6px 1px rgba(47, 191, 143, 0.5);
}

/* ---- Email validation UI ---- */
.signup-field-note {
  font-size: 12px;
  font-weight: 700;
  color: #9a6b00;
  background: #fff6e0;
  border-radius: 10px;
  padding: 8px 12px;
  margin: -2px 0 2px;
}

.signup-input-wrap {
  position: relative;
  display: flex;
}

.signup-input-wrap input {
  width: 100%;
  padding-right: 42px;
}

.signup-input-spinner {
  position: absolute;
  right: 14px;
  top: 50%;
  width: 16px;
  height: 16px;
  margin-top: -8px;
  border: 3px solid #e6def7;
  border-top-color: var(--color-purple);
  border-radius: 50%;
  animation: emailSpin 0.7s linear infinite;
}

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

.signup-input-check {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: #2fbf8f;
  font-weight: 800;
  font-size: 17px;
}

.signup-field input.is-invalid {
  border-color: #ff8fa3;
  box-shadow: 0 0 0 4px rgba(214, 51, 108, 0.1);
}

.signup-field input.is-valid {
  border-color: #6fe3b8;
}

.signup-field-message {
  font-size: 12.5px;
  font-weight: 700;
  margin-top: 2px;
}

.signup-field-message--error {
  color: #d6336c;
}

.signup-field-message--suggestion {
  color: #9a6b00;
}

.signup-field-message--success {
  color: #2fbf8f;
}

.signup-field-fixbtn {
  display: inline-block;
  margin-left: 4px;
  padding: 2px 10px;
  border-radius: 999px;
  background: #ffe1a8;
  color: #6b4a00;
  font-weight: 800;
  font-size: 12px;
}

.signup-error {
  background: #fff0f3;
  color: #d6336c;
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.signup-submit {
  height: 52px;
  border-radius: 999px;
  background: linear-gradient(90deg, #9fd8ff, #c6a8ff, #ff9fb2);
  color: #3a2e57;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 8px 22px rgba(108, 75, 255, 0.25);
  transition: transform 0.12s ease;
}

.signup-submit:active {
  transform: scale(0.97);
}