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

:root {
  --body-color: #141520;
  --header-height: 3.5rem;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: var(--body-color);
  color: #f9f9f9;
}

button {
  cursor: pointer;
}

button,
input {
  outline: none;
}

li {
  list-style: none;
}

a {
  text-decoration: none;
  color: #f9f9f9;
}

main {
  padding: 1.5rem 10px;
}

main .container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 10px;
}

.card {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background-color: #181927;
  box-shadow: 2px 2px 5px #111;
  border-radius: 1rem;
  padding: 20px;
  transition: all 0.375s;
  position: relative;
  border: 1px solid transparent;
}

.card:hover {
  border-color: #8672ff;
}

.card .atom-structure {
  display: flex;
  gap: 5px;
  margin-top: 1rem;
}

.card .atom-structure .electron,
.card .atom-structure .proton,
.card .atom-structure .neutron,
.card .atom-structure .atomic-number {
  position: relative;
  flex: 1;
  padding: 10px;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid;
  transition: all 0.375s;
  cursor: pointer;
  font-family: monospace, 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande',
    'Lucida Sans', Arial, sans-serif;
}

.card .discovered .unknown {
  color: #aaa;
}

.card .atom-structure .electron::before,
.card .atom-structure .proton::before,
.card .atom-structure .neutron::before,
.card .atom-structure .atomic-number::before {
  position: absolute;
  top: 0;
  left: 5px;
  font-size: 0.7rem;
  color: #ccc;
  font-weight: 550;
}

.card .atom-structure .electron {
  color: red;
}
.card .atom-structure .proton {
  color: dodgerblue;
}
.card .atom-structure .neutron {
  color: lime;
}
.card .atom-structure .atomic-number {
  color: yellow;
}

.card .atom-structure .electron:hover {
  background-color: rgba(255, 0, 0, 0.3);
  border-color: rgba(255, 0, 0, 0.3);
  color: #f9f9f9;
}
.card .atom-structure .proton:hover {
  background-color: rgba(30, 144, 255, 0.3);
  border-color: rgba(30, 144, 255, 0.3);
  color: #f9f9f9;
}
.card .atom-structure .neutron:hover {
  background-color: rgba(0, 255, 0, 0.3);
  border-color: rgba(0, 255, 0, 0.3);
  color: #f9f9f9;
}
.card .atom-structure .atomic-number:hover {
  background-color: rgba(255, 255, 0, 0.3);
  border-color: rgba(255, 255, 0, 0.3);
  color: #f9f9f9;
}

.card .atom-structure .electron:hover::before {
  color: #f9f9f9;
}
.card .atom-structure .proton:hover::before {
  color: #f9f9f9;
}
.card .atom-structure .neutron:hover::before {
  color: #f9f9f9;
}
.card .atom-structure .atomic-number:hover::before {
  color: #f9f9f9;
}

.card .phase {
  font-family: 'Gill Sans', 'Gill Sans MT', Calibri, 'Trebuchet MS', sans-serif;
  position: absolute;
  top: 10px;
  right: 10px;
  border: 1px solid;
  padding: 5px 10px;
  border-radius: 1rem;
  cursor: pointer;
  transition: all 0.375s;
}

.card .latin-name::before,
.card .discovered::before,
.card .phase::before {
  transition: all 0.375s;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
}

.card .latin-name::before {
  content: 'Latin name: ';
}

.card .discovered {
  color: #bbb;
}

.card .discovered::before {
  content: 'Discovered: by ';
}

.card .discovered::before {
  color: #f9f9f9;
}
.card .discovered .year-in {
  color: #ccc;
}

.card .solid {
  color: #cb7d18;
}
.card .liquid {
  color: dodgerblue;
}
.card .gas {
  color: lime;
}
.card .unknown {
  color: #ccc;
}

.card .solid:hover {
  background-color: #cb7d18;
  border-color: #cb7d18;
  color: #f9f9f9;
}
.card .liquid:hover {
  background-color: dodgerblue;
  border-color: dodgerblue;
  color: #f9f9f9;
}
.card .gas:hover {
  background-color: lime;
  border-color: lime;
  color: #f9f9f9;
}
.card .phase.unknown:hover {
  background-color: #ccc;
  border-color: #ccc;
  color: #f9f9f9;
}

.card .atom-structure .electron::before {
  content: 'e';
  color: red;
  transition: all 0.375s;
}
.card .atom-structure .proton::before {
  content: 'p';
  color: dodgerblue;
  transition: all 0.375s;
}
.card .atom-structure .neutron::before {
  content: 'n';
  color: lime;
  transition: all 0.375s;
}
.card .atom-structure .atomic-number::before {
  content: 'z';
  color: yellow;
  transition: all 0.375s;
}

/* .card .phase::before {
  content: "Phase: ";
  color: #f9f9f9;
} */

.card .name {
  font-size: 1.5rem;
  margin-bottom: 5px;
}

/* Search */

header .input-container {
  width: 50%;
  min-width: 300px;
  padding: 5px;
  display: flex;
  align-items: center;
  border-radius: 10px;
  margin: 0 12%;
  background: #181927;
  border: 2px solid #444444aa;
}

header .input-container input {
  background-color: transparent;
  color: #f5f5f5;
  border: none;
  border-radius: 5px;
  padding: 2px 5px;
  font-size: 1rem;
  flex: 1;
}

header .input-container input::selection {
  color: #1972d2;
}

header .input-container i {
  color: #fff;
  height: 100%;
  border-right: 1px solid;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
}

header .input-container #headerSelect {
  height: 2rem;
  position: relative;
  border-left: 1px solid;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5px 15px;
  white-space: nowrap;
}

header .input-container #headerSelect .select {
  cursor: pointer;
}

header .input-container #headerSelect .options {
  position: absolute;
  top: 170%;
  border: 1px solid #8672d2;
  border-radius: 10px;
  padding: 10px 15px;
  background-color: #181927;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  width: clamp(8rem, 10rem, 12rem);
  transition: all 0.375s;
  opacity: 0;
  display: none;
}

header .input-container #headerSelect .options::after {
  content: '△';
  position: absolute;
  bottom: 97%;
  left: 50%;
  translate: -50% 0;
  color: #8672d2;
}

header .input-container #headerSelect .options .option {
  cursor: pointer;
  border-bottom: 0.5px solid #888888;
  width: 100%;
  text-align: center;
  padding: 5px;
}

header .input-container #headerSelect .options .option:last-child {
  border-bottom: none;
}

/* Darkmode */

.darkmode {
  --body-color: #cccccc;
  color: #000;
}

.darkmode header nav li {
  color: #000;
}

.darkmode header #mode {
  color: #000;
}

.darkmode .card {
  border-color: #111;
  background-color: #aaaaaa55;
}

.darkmode .card .discovered {
  color: #656565;
}

.darkmode .card .discovered::before,
.darkmode .card .phase::before {
  color: #111;
}

.darkmode .card .solid {
  color: #cb7d18;
}
.darkmode .card .liquid {
  color: blue;
}
.darkmode .card .gas {
  color: green;
}
.darkmode .card .unknown {
  color: #777;
}

.darkmode .card .atom-structure .neutron {
  color: green;
}
.darkmode .card .atom-structure .proton {
  color: blue;
}
.darkmode .card .atom-structure .electron {
  color: red;
}

.darkmode .card .atom-structure .electron::before,
.darkmode .card .atom-structure .proton::before,
.darkmode .card .atom-structure .neutron::before {
  color: #757575;
}

.darkmode .card .atom-structure .atomic-number {
  color: rebeccapurple;
}
.darkmode .card .atom-structure .atomic-number:hover {
  background-color: rgba(102, 51, 153, 0.3);
}
.darkmode .card .atom-structure .atomic-number::before {
  color: rebeccapurple;
}
.darkmode .card .atom-structure .atomic-number:hover::after {
  color: #f9f9f9;
}