* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  /* outline: 1px solid red; */
}

.material-icons {
  font-size: 1em;
  line-height: 1em;
  width: 1em;
  height: 1em;
}

:root {
  --html-bgclr: hsl(0, 0%, 10%);
  --html-clr: #e1e1e1;
  --input-bgclr: #e1e1e1;
  --input-clr: #000000;
  --input-brdclr: #000000;
  --btn-bgclr: hsl(0, 0%, 50%);
  --btn-bgclr-hover: hsl(0, 0%, 40%);
  --btn-bgclr-active: hsl(0, 0%, 30%);
  --btn-clr: #ffffff;
  --btn-brdclr: #000000;

  --body-padding: 1rem;
  --body-gap: 1rem;

  --btn-fontsize: 1rem;
  --btn-icon-fontsize: 1rem;

  --widget-gap: 1rem;

  --form-gap: 0.5rem;

  --container-actions-height: 2.5rem;

  --site-list-gap: 1rem;
  --site-list-padding: 1rem;
  --site-item-img-size: 1.5rem;
  --site-item-gap: 0.5rem;
  --site-item-padding: 1rem;
  --site-item-clr: white;
  --site-group-bg-clr: rgba(255, 255, 255, 0.01);
  --site-item-bg-clr: rgba(255, 255, 255, 0.1);
  --site-item-btn-offset: -0.5rem;
  --site-item-btn-bg-clr: rgba(255, 255, 255, 0.05);
  --site-item-btn-clr: white;

  --clock-list-gap: 1rem;
  --clock-list-padding: 1rem;
  --clock-item-gap: 0.1rem;
  --clock-item-padding: 1rem;
  --clock-item-bg-clr: rgba(255, 255, 255, 0.05);
  --clock-item-time-fontsize: 2rem;
  --clock-item-name-fontsize: 0.8rem;
  --clock-item-btn-offset: -0.5rem;
  --clock-item-btn-bg-clr: rgba(255, 255, 255, 0.05);
  --clock-item-btn-clr: white;
}

input,
select,
.label-checkbox {
  font-size: 1rem;
  padding: 0.25em 0.5em;
  border: 1px solid gray;
  border-radius: 0.2em;
}
.label-checkbox {
  cursor: pointer;
  display: grid;
  gap: 0.5em;
  align-items: center;
  grid-template-columns: auto 1fr;
}
.label-checkbox:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

form {
  display: grid;
  grid-auto-flow: row;
  gap: var(--form-gap);
}
form * {
  width: 100%;
}
form .form-actions {
  display: flex;
  justify-content: end;
  gap: var(--form-gap);
}

.btn {
  cursor: pointer;
  font-size: var(--btn-fontsize);
  padding: 0.25em 0.5em;
}

.btn-icon {
  cursor: pointer;
  font-size: var(--btn-icon-fontsize);
  width: 1.5em;
  height: 1.5em;
  display: grid;
  justify-content: center;
  align-content: center;
}
.btn-icon[data-icon-active] * {
  display: none;
}
.btn-icon[data-icon-active="1"] :nth-of-type(1) {
  display: block;
}
.btn-icon[data-icon-active="2"] :nth-of-type(2){
  display: block;
}

.font-bold {
  font-weight: bold;
}
.color-black {
  color: black;
}
.text-center {
  text-align: center;
}

html {
  background-color: var(--html-bgclr);
  color: var(--html-clr);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  display: grid;
  gap: var(--body-gap);
  height: 100dvh;
  max-height: 100dvh;
  padding: var(--body-padding);
  grid-template-columns: auto 18rem;
  grid-template-areas: "SITES CLOCKS";
  overflow: hidden;
}

.widget-container {
  display: grid;
  gap: var(--widget-gap);
  align-content: start;
}

.widget-container .actions-container {
  display: flex;
  justify-self: center;
  align-items: center;
  gap: var(--widget-gap);
  height: var(--container-actions-height);
}

.site-container {
  grid-area: SITES;
  height: 100dvh;
  max-height: calc(100dvh - var(--body-padding) - var(--widget-gap));
  overflow: hidden;
  grid-template-rows: auto 1fr;
}
.site-container .content-container {
  display: grid;
  gap: var(--widget-gap);
  overflow-y: auto;
  overflow-x: hidden;
  align-content: start;
}
.site-container .content-container .group {
  display: grid;
}
.site-container .content-container .group:hover {
  background-color: var(--site-group-bg-clr);
}

.site-container .content-container .group .item-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--site-list-gap);
  padding: var(--site-list-padding);
  justify-content: center;
  align-content: start;
  overflow-y: auto;
}

.site-container .content-container .group .item-list .item {
  position: relative;
  background-color: var(--site-item-bg-clr);
}
.site-container .content-container .group .item-list .item a {
  display: grid;
  grid-auto-flow: column;
  align-items: center;
  gap: var(--site-item-gap);
  padding: var(--site-item-padding);
  text-decoration: none;
}
.site-container .content-container .group .item-list .item img {
  width: var(--site-item-img-size);
  height: var(--site-item-img-size);
  object-fit: contain;
}
.site-container .content-container .group .item-list .item p {
  color: var(--site-item-clr);
}
.site-container .content-container .group .item-list .item .btn-icon {
  position: absolute;
  right: var(--site-item-btn-offset);
  top: var(--site-item-btn-offset);
  background-color: var(--site-item-btn-bg-clr);
  color: var(--site-item-btn-clr);
  border: none;
  display: none;
}
.site-container .content-container .group .item-list .item:hover .btn-icon {
  display: grid;
}

.clock-container {
  grid-area: CLOCKS;
  height: 100dvh;
  max-height: calc(100dvh - var(--body-padding) - var(--widget-gap));
  overflow: hidden;
  grid-template-rows: auto 1fr;
}
.clock-container .content-container {
  display: grid;
  gap: var(--widget-gap);
  align-content: start;
  overflow: hidden;
}
.clock-container .content-container .item-list {
  display: grid;
  grid-auto-flow: row;
  gap: var(--clock-list-gap);
  padding: var(--clock-list-padding);
  align-content: start;
  overflow-y: auto;
  overflow-x: hidden;
}
.clock-container .content-container .item-list .item {
  position: relative;
  display: grid;
  grid-auto-flow: row;
  background-color: var(--clock-item-bg-clr);
  gap: var(--clock-item-gap);
  padding: var(--clock-item-padding);
}
.clock-container .content-container .item-list .item .time {
  font-size: var(--clock-item-time-fontsize);
  font-weight: bold;
}
.clock-container .content-container .item-list .item .name {
  font-size: var(--clock-item-name-fontsize);
  text-align: end;
}
.clock-container .content-container .item-list .item .btn-icon {
  position: absolute;
  right: var(--clock-item-btn-offset);
  top: var(--clock-item-btn-offset);
  background-color: var(--clock-item-btn-bg-clr);
  color: var(--clock-item-btn-clr);
  border: none;
  display: none;
}
.clock-container .content-container .item-list .item:hover .btn-icon {
  display: grid;
}

@media (max-width: 450px) {
  body {
    grid-template-columns: 1fr;
    grid-template-rows: 12rem auto;
    grid-template-areas: "CLOCKS" "SITES";
  }

  .site-container {
    max-height: calc(100dvh - (var(--body-padding) * 2) - var(--widget-gap) - 12rem);
  }
  .site-container .content-container .group .item-list .item .btn-icon {
    display: grid;
  }

  .clock-container {
    max-height: calc(12rem);
  }
  .clock-container .content-container .item-list {
    overflow-y: hidden;
    overflow-x: scroll;
    grid-auto-flow: column;
  }
  .clock-container .content-container .item-list .item {
    min-width: 15rem;
  }
  .clock-container .content-container .item-list .item .btn-icon {
    display: grid;
  }
}