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

body {
  min-height: 100vh;
  padding: 32px 24px;
  background: linear-gradient(to right, #3a7bd5, #3a6073);
  color: #102235;
  font-family: "Raleway", sans-serif;
}

h1 {
  margin-bottom: 24px;
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 3.5rem);
  text-shadow: 0 12px 30px rgba(0, 0, 0, 0.18);
}

#contentContainer {
  max-width: 720px;
  padding: 24px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 60px rgba(16, 34, 53, 0.18);
}

.webauthnLogin {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 20px;
}

.webauthnLogin button,
.openSettingsButton,
.popupWebauthn .form .form-element button,
.popupReqSignup .form .form-element button,
.popupTryagain .form .form-element button,
.settings .form .form-element button,
#contentContainer .form-element button {
  border: none;
  border-radius: 999px;
  background: #ffffff;
  color: #102235;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  transition: transform 140ms ease, box-shadow 140ms ease, opacity 140ms ease;
}

.webauthnLogin button,
.openSettingsButton {
  padding: 14px 22px;
  box-shadow: 0 12px 28px rgba(16, 34, 53, 0.16);
}

.webauthnLogin button:hover,
.openSettingsButton:hover,
.popupWebauthn .form .form-element button:hover,
.popupReqSignup .form .form-element button:hover,
.popupTryagain .form .form-element button:hover,
.settings .form .form-element button:hover,
#contentContainer .form-element button:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(16, 34, 53, 0.2);
}

.webauthnLogin button.inactive {
  background: #102235;
  color: #ffffff;
}

.openSettingsButton {
  display: none;
  margin-top: 20px;
}

.openSettingsButton.active {
  display: inline-flex;
}

.popupWebauthn,
.popupReqSignup,
.popupTryagain,
.settings {
  position: fixed;
  top: 50%;
  left: 50%;
  width: min(420px, calc(100vw - 32px));
  padding: 24px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 24px 70px rgba(16, 34, 53, 0.24);
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, calc(-50% + 16px)) scale(0.97);
  transition: opacity 180ms ease, transform 180ms ease;
}

.popupWebauthn.active,
.popupReqSignup.active,
.popupTryagain.active,
.settings.active {
  opacity: 1;
  pointer-events: auto;
  transform: translate(-50%, -50%) scale(1);
}

.popupWebauthn .closeButton,
.popupReqSignup .closeButtonReqSignup,
.popupTryagain .closeButtonReqTryagain,
.settings .closeButtonSettings {
  position: absolute;
  top: 14px;
  right: 14px;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #dce6ef;
  color: #102235;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 700;
}

.form h2 {
  margin-bottom: 20px;
  color: #102235;
  font-size: 1.6rem;
}

.form .form-element {
  margin-top: 16px;
}

.form .form-element label {
  display: block;
  margin-bottom: 8px;
  color: #31455a;
  font-size: 0.95rem;
  font-weight: 600;
}

.form .form-element input[type="text"],
.form .form-element input[type="color"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #cbd7e2;
  border-radius: 14px;
  background: #f8fbfd;
  color: #102235;
  font-size: 1rem;
}

.form .form-element button {
  width: 100%;
  padding: 14px 18px;
  background: #102235;
  color: #ffffff;
}

.colorPickerCard {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 16px;
  align-items: center;
  padding: 16px;
  border: 1px solid #cbd7e2;
  border-radius: 18px;
  background: #f8fbfd;
  cursor: pointer;
}

.colorPickerSwatch {
  display: block;
  width: 72px;
  height: 72px;
  border: 3px solid #ffffff;
  border-radius: 18px;
  background: #3a7bd5;
  box-shadow: 0 10px 26px rgba(16, 34, 53, 0.18);
}

.colorPickerText {
  display: grid;
  gap: 6px;
}

.colorPickerText strong {
  color: #102235;
  font-size: 1.1rem;
}

.colorPickerText span {
  color: #4c647b;
  font-size: 0.95rem;
  line-height: 1.4;
}

#colorPicker {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.settingsCancelButton {
  background: #dce6ef !important;
  color: #102235 !important;
}

.dangerActionButton {
  background: #8f1d1d !important;
  color: #ffffff !important;
}

#contentContainer .form-element {
  margin-top: 16px;
}

#contentContainer .form-element button {
  width: 100%;
  padding: 14px 18px;
  background: #102235;
  color: #ffffff;
}

#contentContainer .registerActions {
  display: grid;
  gap: 12px;
}

#contentContainer .secondaryActionButton {
  background: #dce6ef;
  color: #102235;
}

#contentContainer .form-element button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.popupTryagain .form .form-element:last-child {
  display: grid;
  gap: 12px;
}

.errorWebauthnLogin,
.errorReqSignup,
.errorTryagain,
.errorSettings {
  margin-top: 16px;
  color: #b42318;
  font-size: 0.95rem;
  font-weight: 700;
  opacity: 0;
  min-height: 1.2em;
}

.errorWebauthnLogin.active,
.errorReqSignup.active,
.errorTryagain.active,
.errorSettings.active {
  opacity: 1;
}

@media (max-width: 720px) {
  body {
    padding: 24px 16px 48px;
  }

  .webauthnLogin {
    justify-content: flex-start;
  }

  .webauthnLogin button,
  .openSettingsButton {
    width: 100%;
    justify-content: center;
  }
}