* {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  background-color: #e7e7e7;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #fff;
  font-size: 1rem;
  height: 100vh;
}

.hidden {
  display: none;
}

.button {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  text-align: center;
  background-color: #108f69;
  font-size: 1.3rem;
  font-weight: bold;
  cursor: pointer;
  height: 100%;
  border-radius: 4px;
  color: inherit;
  padding: 1rem 3rem;
  border: 2px solid #0b7556;
  -webkit-transition: -webkit-filter 0.1s;
  transition: -webkit-filter 0.1s;
  transition: filter 0.1s;
  transition: filter 0.1s, -webkit-filter 0.1s;
}

.button:hover {
  -webkit-filter: contrast(200%);
          filter: contrast(200%);
}

.modal-background {
  position: absolute;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  top: 0;
  left: 0;
  background-color: rgba(0, 0, 0, 0.5);
  width: 100%;
  height: 100%;
  display: none;
  z-index: 9;
  cursor: pointer;
}

.modal-background.visible {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

.modal-background .modal-window {
  background-color: #1e8ec2;
  border-radius: 4px;
  padding: 1rem;
  max-width: 30%;
  font-size: 1.2rem;
  cursor: default;
}

.modal-background .modal-window form {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  max-width: 30rem;
  margin: 0 auto;
}

.modal-background .modal-window form > *:not([type='hidden']) {
  display: block;
  margin: 0.5rem 0;
  max-width: 100%;
  width: 100%;
}

.modal-background .modal-window form input[type='text'] {
  text-align: center;
  border: 0;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  font-size: 1rem;
  outline: none;
}

.modal-background .modal-window form label {
  width: 100%;
  border: 2px solid #0a53a7;
  border-radius: 4px;
  padding: 0.3rem 1rem;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  cursor: pointer;
}

.modal-background .modal-window form input[type='submit'] {
  padding: 1rem 3rem;
}

.modal-background#info-modal h1 {
  font-size: 1.3rem;
  text-align: center;
  margin-bottom: 1rem;
}

.modal-background#info-modal p {
  background-color: #fff;
  border: 1px solid #000;
  border-radius: 5px;
  color: #000;
  padding: 8px 10px;
  margin-bottom: 1rem;
}

.modal-background#info-modal button {
  margin: auto;
}

header {
  --header-height: 3.5rem;
  width: 100%;
  height: var(--header-height);
  background-color: #0d85bd;
  -webkit-box-shadow: 0 3px 10px -2px rgba(0, 0, 0, 0.5);
          box-shadow: 0 3px 10px -2px rgba(0, 0, 0, 0.5);
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: end;
      -ms-flex-pack: end;
          justify-content: flex-end;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  margin-bottom: 2rem;
  position: relative;
}

header .user {
  display: none;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  padding-left: 1rem;
  cursor: pointer;
}

header .user img {
  border-radius: 50%;
  margin-right: 10px;
  width: 2.8rem;
  height: 2.8rem;
}

header .user p {
  font-size: 1.3rem;
}

header .balance {
  display: none;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -ms-flex-pack: distribute;
      justify-content: space-around;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  text-align: center;
  background-color: rgba(48, 134, 11, 0.7);
  -webkit-transition: background 0.1s;
  transition: background 0.1s;
  padding: 0 2rem;
  height: 100%;
  border-radius: 4px;
  font-size: 1.2rem;
  cursor: pointer;
}

header .balance b {
  -webkit-transition: all 0.1s;
  transition: all 0.1s;
}

header .balance p {
  font-size: 0.8rem;
  -webkit-transition: all 0.1s;
  transition: all 0.1s;
}

header .balance:hover {
  background-color: rgba(61, 168, 14, 0.7);
}

header .balance:hover b {
  opacity: 0;
}

header .balance:hover p {
  margin-bottom: calc(var(--header-height) / 3);
  font-size: 1rem;
}

header.logged-in {
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
}

header.logged-in .user {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

header.logged-in .balance {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
}

header.logged-in .button {
  display: none;
}

#notification-container {
  padding: 0 2rem;
  width: 100%;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  margin: 1rem 0;
}

#notification-container .notification {
  border-radius: 4px;
  padding: 15px;
  padding-right: 25px;
  width: -webkit-fit-content;
  width: -moz-fit-content;
  width: fit-content;
  min-width: 10rem;
  max-width: 50%;
  margin: 0 auto;
  position: relative;
  text-align: center;
}

#notification-container .notification button {
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  border: none;
  padding: 6px;
  background-color: transparent;
  color: #000;
  position: absolute;
  top: 0;
  right: 0;
  cursor: pointer;
}

#notification-container .notification.green {
  border: 1px solid rgba(75, 236, 88, 0.7);
  background-color: rgba(75, 236, 88, 0.5);
  color: #12a61e;
}

#notification-container .notification.yellow {
  border: 1px solid rgba(212, 236, 75, 0.7);
  background-color: rgba(212, 236, 75, 0.5);
  color: #90a612;
}

#notification-container .notification.red {
  border: 1px solid rgba(236, 86, 75, 0.7);
  background-color: rgba(236, 86, 75, 0.5);
  color: #a61c12;
}

main {
  padding: 2rem;
}

main > div {
  width: 50%;
  margin-left: auto;
  margin-right: auto;
}

main .card {
  background-color: #1e8ec2;
  border-radius: 4px;
  -webkit-box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
          box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
  margin-bottom: 2rem;
}

main .card:last-child {
  margin-top: 2rem;
}

main .card .card-heading {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  width: 100%;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  padding: 10px 5px;
  background-color: #166f99;
  border-radius: 4px 4px 0 0;
  -webkit-box-shadow: 0 2px 12px -5px rgba(0, 0, 0, 0.5);
          box-shadow: 0 2px 12px -5px rgba(0, 0, 0, 0.5);
}

main .card .card-heading b {
  padding-right: 5px;
}

main .card .card-heading p {
  font-size: 0.8rem;
  padding-left: 5px;
}

main .card .card-items {
  padding: 10px;
}

main .card .card-items ul {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  overflow-y: auto;
}

main .card .card-items ul .inv-item {
  width: 105px;
  height: 105px;
  border: 2px solid #0a53a7;
  cursor: pointer;
  margin: 5px;
  position: relative;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  list-style: none;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
  background-color: rgba(255, 255, 255, 0.6);
}

main .card .card-items ul .inv-item.inactive {
  -webkit-filter: grayscale(1);
          filter: grayscale(1);
  opacity: 0.6;
}

main .card .card-items ul .inv-item img {
  max-width: 100%;
  max-height: 100%;
}

main .card .card-items ul .inv-item .how-much-left {
  position: absolute;
  top: 0;
  left: 0;
  padding: 2px 4px;
  background-color: #15a1e2;
}

main .card .card-items ul .inv-item .price {
  position: absolute;
  top: 0;
  right: 0;
  padding: 2px 4px;
  font-size: 0.8rem;
  background-color: rgba(2, 162, 58, 0.8);
  text-align: center;
  width: 50%;
}

main .card .card-items ul .inv-item .controls {
  position: absolute;
  width: 100%;
  height: 20%;
  bottom: 0;
  left: 0;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
      -ms-flex-pack: center;
          justify-content: center;
}

main .card .card-items ul .inv-item .controls div {
  padding: 0;
  width: 25%;
  border-radius: 0;
  font-size: 1rem;
}

main .card .card-items ul .inv-item .controls input {
  width: 50%;
  padding: 0;
  border: 0;
  text-align: center;
  -webkit-appearance: none;
     -moz-appearance: none;
          appearance: none;
  outline: none;
}

main .card .card-items ul .inv-item .quantity {
  background-color: #15a1e2;
  padding: 2px 4px;
  position: absolute;
  top: 0;
  left: 0;
}

main .card .card-items > p {
  display: none;
  padding: 20px 0;
  width: 100%;
  text-align: center;
}

main .card .card-items.empty {
  padding: 2.5rem;
}

main .card .card-items.empty p {
  display: block;
}

main .center {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -ms-flex-pack: distribute;
      justify-content: space-around;
  width: 25%;
}

main .center .distinction {
  text-align: center;
  color: #000;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

main .center form .submit {
  padding: 20px 70px;
  margin: auto;
}

main .center form .submit.inactive {
  cursor: default;
  opacity: 0.6;
  -webkit-filter: grayscale(1);
          filter: grayscale(1);
}

main .center .vk-link {
  text-align: center;
  font-size: 1.2rem;
  margin-top: 1rem;
}

main .center .vk-link a {
  text-decoration: none;
}

main .center .vk-link a:hover {
  text-decoration: underline;
}

footer {
  position: absolute;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  left: 0;
  bottom: 0;
  height: 2rem;
  width: 100%;
  overflow: hidden;
  padding: 5px 0 5px 20px;
  background-color: #0f0f0f;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

@media all and (max-width: 992px) {
  .modal-background {
    -webkit-box-align: start;
        -ms-flex-align: start;
            align-items: flex-start;
  }
  .modal-background .modal-window {
    margin-top: 2rem;
    min-width: 90%;
  }
  header .balance {
    font-size: 0.9rem;
    padding: 0 0.5rem;
    margin-left: 0.5rem;
  }
  #notification-container .notification {
    margin: 0;
    -webkit-box-sizing: inherit;
            box-sizing: inherit;
    min-width: 100%;
  }
  main > div {
    width: initial;
  }
  main .center {
    width: 50%;
  }
}

@media all and (max-width: 600px) {
  main .center {
    width: 100%;
  }
}