* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  transition: all 0.5s ease;
}

::-moz-selection {
  color: #fff;
  background: #007AFF;
}

::selection {
  color: #fff;
  background: #007AFF;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  font-size: 16px;
  margin: auto;
}

h1 {
  font-size: 2.18rem;
  margin-bottom: 0.2em;
  font-weight: 600;
}

@media (min-width: 768px) {
  h1 {
    font-size: 3.8rem;
  }
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin: 40px 0 20px 0;
}

h3 {
  font-size: 0.875rem;
  text-transform: uppercase;
  color: #6F6F6F;
  text-align: center;
  padding: 0 0 20px 0;
}

p {
  font-size: 1rem;
  line-height: 1.5;
}

@media (min-width: 768px) {
  p {
    font-size: 1.125rem;
  }
}

#moon-toggle {
  position: absolute;
  right: 15px;
  top: 15px;
}

#moon-toggle:hover {
  cursor: pointer;
}

header {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  margin-top: 40px;
}

header.sub-page {
  padding: 40px 20px;
  padding-top: 40px;
  margin-top: 0;
  background: #f9f9f9;
}

header .header-icon {
  display: block;
}

@media (max-width: 549px) {
  header .header-icon {
    width: 100px;
    height: 100px;
  }
  header .header-icon img {
    width: 100%;
  }
}

@media (min-width: 768px) {
  header .header-icon {
    width: 200px;
    height: 200px;
  }
  header .header-icon img {
    width: 100%;
  }
}

header .header-info {
  padding-left: 20px;
}

@media (min-width: 768px) {
  header .header-info {
    padding-left: 50px;
  }
}

header .header-info p {
  color: #7F7F82;
  font-size: 1.125rem;
}

@media (max-width: 549px) {
  header .header-info p {
    font-size: 0.9rem;
  }
}

.intro-text {
  margin: 40px auto;
}

.intro-text.purple { color: #6C5EFF; }

.center { 
  text-align: center;
}

@media (max-width: 767px) {
  .intro-text {
    padding-left: 20px;
    padding-right: 20px;
  }
}

@media (min-width: 768px) {
  .intro-text {
    max-width: 660px;
  }
}

.download-button {
  text-align: center;
}

.download-button img {
  width: 200px;
}

@media (min-width: 768px) {
  .download-button img {
    width: 250px;
  }
}

.main .etc {
  text-align: center;
  font-style: italic;
}

.main #video-preview {
  max-width: 900px;
  margin: 40px auto;
}

.main #video-preview:hover {
  cursor: pointer;
}

.main #features .feature:not(.ipad) {
  padding: 0 20px 40px;
}

@media (min-width: 768px) {
  .main #features .feature:not(.ipad) {
    margin: 200px 0;
  }
}

.main #features .feature:not(.ipad) .feature-inner {
  max-width: 900px;
  position: relative;
  margin: auto;
  display: flex;
  min-height: 400px;
}

@media (max-width: 549px) {
  .main #features .feature:not(.ipad) .feature-inner {
    flex-direction: column;
  }
}

.main #features .feature:not(.ipad) .feature-inner .feature-img {
  max-width: 300px;
  margin: 20px auto;
  flex-grow: 1;
  flex-basis: 0;
}

.main #features .feature:not(.ipad) .feature-inner .feature-img img {
  width: 100%;
}

@media (min-width: 768px) {
  .main #features .feature:not(.ipad) .feature-inner .feature-img img {
    max-width: 300px;
    position: absolute;
    top: -23%;
  }
}

.main #features .feature:not(.ipad) .feature-inner .feature-text {
  flex-grow: 1;
  flex-basis: 0;
  align-self: center;
}

.main #features .feature:not(.ipad):nth-child(even) {
  background: #f9f9f9;
}

@media (min-width: 549px) {
  .main #features .feature:not(.ipad):nth-child(even) .feature-text {
    order: 2;
    padding-left: 40px;
  }
}

@media (min-width: 549px) {
  .main #features .feature:not(.ipad):nth-child(odd) .feature-text {
    padding-right: 40px;
  }
}

.main #features .ipad {
  padding: 0 20px 40px;
}

@media (min-width: 768px) {
  .main #features .ipad {
    margin: 230px 0 270px;
  }
}

.main #features .ipad .feature-inner {
  display: flex;
  position: relative;
  max-width: 900px;
  position: relative;
  margin: auto;
  flex-direction: column;
}

@media (min-width: 768px) {
  .main #features .ipad .feature-inner {
    flex-direction: row;
  }
}

.main #features .ipad .feature-inner .feature-text {
  flex-grow: 1;
  flex-basis: 0;
  padding-right: 40px;
}

.main #features .ipad .feature-inner .feature-img {
  max-width: 400px;
  margin: 20px auto;
}

@media (min-width: 768px) {
  .main #features .ipad .feature-inner .feature-img {
    flex-grow: 2;
    flex-basis: 0;
  }
}

.main #features .ipad .feature-inner .feature-img img {
  width: 100%;
}

@media (min-width: 768px) {
  .main #features .ipad .feature-inner .feature-img img {
    max-width: 400px;
    position: absolute;
    top: -23%;
  }
}

.support {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
}

.support p {
  max-width: 400px;
  background: #F4F3F9;
  padding: 40px;
  border-radius: 8px;
}

.support p a {
  color: #007AFF;
}

.support p a:hover {
  color: #6C5EFF;
}

footer {
  margin: 50px 0;
  text-align: center;
  clear: both;
}

footer a {
  color: #A9A9A9;
  text-decoration: none;
  font-weight: 500;
}

#app-img {
  border-radius: 16%;
}

@media (max-width: 549px) {
  footer a {
    display: block;
    text-align: center;
    line-height: 2;
  }
}

@media (min-width: 549px) {
  footer a:not(:last-child) {
    margin-right: 6%;
  }
}

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

.night-mode {
  background: #21252E;
}

.night-mode h1, .night-mode p {
  color: white;
}

.night-mode h2 {
  color: #5379FF;
}

.night-mode .header-info p {
  opacity: 0.7;
}

.night-mode h3 {
  color: #7F7F82;
}

.night-mode #moon-toggle {
  opacity: 0.4;
}

.night-mode .main #features .feature:nth-child(even) {
  background: #30333E;
}