:root {
  --main-bg: rgb(20, 20, 30);
  --second-bg: rgb(40, 40, 50);
  --third-bg: rgb(25, 25, 35);
  --second-color: rgb(40, 40, 60);
  --primary-color: rgb(45, 90, 210);
  --main-text-color: white;
  --second-text-color: rgb(180, 180, 180);
  --tag-border: rgb(90, 90, 110);
  --hover: rgb(30, 30, 40);
  --placeholder: rgb(140, 140, 170);
  --invert: invert(0);
}

.light-mode {
  --main-bg: rgb(235, 235, 225);
  --second-bg: rgb(215, 215, 205);
  --third-bg: rgb(230, 230, 220);
  --second-color: rgb(210, 210, 190);
  --primary-color: rgb(30, 60, 140);
  --main-text-color: black;
  --second-text-color: rgb(75, 75, 75);
  --tag-border: rgb(165, 165, 145);
  --hover: rgb(225, 225, 215);
  --placeholder: rgb(115, 115, 85);
  --invert: invert(0.8);
}

* {
  margin: 0;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
  box-sizing: border-box;
  transition: background-color 0.3s ease, color 0.1s ease, border-color 0.3s ease, filter 0.3s ease;
}

body {
  width: 100%;
  height: 100vh;
  background-color: var(--main-bg);
}

.nav {
  display: flex;
  justify-content: space-between;
  padding-inline: calc(50% - 450px);
  border-bottom: 1px solid var(--second-color);
  align-items: center;
  height: 60px;
}

.logo {
  font-size: 25px;
  color: var(--main-text-color);
  font-weight: bold;
  display: flex;
  align-items: center;
  gap: 15px;
  font-family: "Shrikhand", serif;
  font-weight: 100;
}

.logo-img {
  width: 35px;
}

.right-btns {
  display: flex;
  gap: 50px;
}

.right-btn {
  width: 25px;
  cursor: pointer;
  transition: transform 0.3s ease;
  filter: var(--invert);
}

.right-btn:hover {
  transform: scale(1.2);
}

.wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: calc(100% - 60px);
  width: 900px;
  margin-inline: calc(50% - 450px);
  padding-block: 30px;
}

.task-lists {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: calc(100% - 60px);
}

.task-list {
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
  flex: 2;
  width: 1010px;
  padding-inline: 50px;
  margin-left: 10px;
  padding-bottom: 30px;
  scrollbar-gutter: stable;
  color: var(--second-text-color);
  font-size: 18px;
  justify-content: center;
  text-align: center;
}

#completed-list .task-item {
  background-color: var(--third-bg);
}

.complete-btn {
  margin-left: 60px;
  background-color: var(--second-bg);
  border: none;
  outline: none;
  color: var(--second-text-color);
  font-size: 16px;
  border-radius: 5px;
  padding-block: 10px;
  margin-block: 10px;
  cursor: pointer;
  width: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

#caret {
  width: 10px;
  transition: transform 0.3s ease;
  filter: var(--invert);
}

.rotate {
  transform: rotate(-90deg);
}

#completed-list {
  flex: 1.2;
}

.task-list::-webkit-scrollbar {
  width: 10px;
}

.task-list::-webkit-scrollbar-thumb {
  width: 100%;
  border-radius: 10px;
  position: fixed;
  background-color: var(--second-text-color);
  border: 2px solid var(--main-bg);
}

.none {
  display: none !important;
  opacity: 0 !important;
  pointer-events: none;
}

.drag-placeholder {
  background-color: var(--primary-color);
  width: 100%;
  min-height: 10px;
  border-radius: 5px;
}

.task-item {
  background-color: var(--second-bg);
  border-radius: 5px;
  padding: 15px 25px;
  font-size: 18px;
  color: var(--main-text-color);
  text-align: left;
  display: flex;
  align-items: center;
  gap: 10px;
  position: relative;
}

.task-item-info {
  display: flex;
  flex-direction: column;
  margin-inline: 15px;
}

.task-item:has(.task-item-info .task-date) {
  padding-block: 5px;
}

.task-text {
  transition: padding 0.3s ease, border 0.3s ease;
}

.editing {
  border: 2px solid var(--primary-color);
  border-radius: 5px;
  outline: none;
  padding-block: 3px;
}

.invalid-edit {
  border: 2px solid red;
}

.task-date {
  color: var(--second-text-color);
  font-size: 13px;
}

.priority-dropdown,
.priority-input-dropdown,
.settings-dropdown {
  opacity: 0;
  transition: opacity 0.3s ease;
  background-color: var(--main-bg);
  border-radius: 5px;
  color: var(--second-text-color);
  border: none;
  cursor: pointer;
  width: 50px;
  text-align: center;
  padding: 5px;
  outline: none;
  appearance: none;
}

.setting-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.settings-dropdown {
  width: auto;
  text-align: left;
  padding-inline: 10px;
}

.priority-input-dropdown,
.settings-dropdown {
  opacity: 1;
}

.task-item:hover .task-btn,
.task-item:hover .priority-dropdown {
  opacity: 1 !important;
}

.crossed-task {
  text-decoration: line-through;
}

.task-checkbox {
  width: 20px;
  cursor: pointer;
  filter: var(--invert);
}

.task-btns {
  display: flex;
  gap: 20px;
  position: absolute;
  right: 25px;
}

.task-btn {
  width: 20px;
  cursor: pointer;
  transition: transform 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  filter: var(--invert);
}

.starred {
  opacity: 1 !important;
}

.task-btn:hover {
  transform: scale(1.2);
}

.tags-container {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tag {
  background-color: var(--main-bg);
  border-radius: 5px;
  color: var(--second-text-color);
  font-size: 16px;
  padding: 5px;
}

.high {
  background-color: rgb(161, 0, 0);
}

.medium {
  background-color: rgb(201, 130, 0);
}

.low {
  background-color: rgb(0, 94, 0);
}

.priority {
  color: white;
  opacity: 1;
  display: flex;
}

.tag-panel {
  position: absolute;
  background-color: var(--second-bg);
  border: 1px solid var(--tag-border);
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  padding: 5px;
  width: 200px;
}

.tag-list {
  color: var(--second-text-color);
  display: flex;
  flex-direction: column;
  gap: 5px;
  text-align: center;
  padding-top: 5px;
  padding-bottom: 10px;
  height: 200px;
  overflow: auto;
}

.tag-item {
  background-color: var(--main-bg);
  text-align: left;
  display: flex;
  padding: 5px 10px;
  gap: 10px;
  align-items: center;
  border-radius: 5px;
  position: relative;
}

.tag-delete {
  width: 13px;
  cursor: pointer;
  position: absolute;
  right: 10px;
  transition: transform 0.3s ease;
}

.tag-delete:hover {
  transform: scale(1.25);
}

.add-tag-btn {
  background-color: var(--main-bg);
  border-radius: 5px;
  color: var(--main-text-color);
  font-size: 16px;
  text-align: center;
  border: none;
  outline: none;
  cursor: pointer;
  padding: 10px 15px;
  transition: background-color 0.3s ease;
}

.add-tag-btn:hover {
  background-color: var(--hover);
}

.task-input {
  background-color: var(--second-color);
  width: 100%;
  height: 50px;
  min-height: 50px;
  border-radius: 5px;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-right: 30px;
}

.task-input input {
  background-color: transparent;
  border: none;
  outline: none;
  font-size: 18px;
  color: var(--main-text-color);
  flex: 4;
  padding-inline: 30px;
}

.task-input input::placeholder {
  color: var(--placeholder);
}

.input-date {
  width: 80px;
}

.input-btns {
  display: flex;
  flex: 1;
  justify-content: end;
  gap: 25px;
}

.input-btn {
  cursor: pointer;
  width: 20px;
  filter: var(--invert);
}

.settings {
  position: absolute;
  right: calc(50% - 450px);
  top: 70px;
  z-index: 10;
  background-color: var(--second-bg);
  border: 1px solid var(--tag-border);
  border-radius: 5px;
  display: flex;
  flex-direction: column;
  padding: 15px;
  gap: 5px;
  width: 200px;
  color: var(--main-text-color);
  font-size: 15px;
}

.settings h2 {
  text-align: center;
  margin-bottom: 15px;
  font-size: 20px;
}

#clear {
  color: var(--second-text-color);
  text-decoration: underline;
  margin-top: 15px;
  cursor: pointer;
}

@media (max-width: 1020px) {
  .wrap {
    width: 500px;
    margin-inline: calc(50% - 250px);
    padding-block: 5px;
  }

  .task-lists {
    width: 100%;
    gap: 5px;
  }

  .task-list {
    width: 100%;
    padding-inline: 0px;
    margin-inline: 0px;
    gap: 5px;
  }

  .complete-btn {
    margin-left: 0px;
  }

  .nav {
    padding-inline: calc(50% - 250px);
    height: 40px;
  }

  .settings {
    right: calc(50% - 250px);
  }
}

@media (max-width: 500px) {
  .wrap {
    width: 300px;
    margin-inline: calc(50% - 150px);
  }

  .task-input input {
    flex: 2;
    width: 200px;
  }
}