/*-----------------------------------*\
  #CUSTOM PROPERTY
\*-----------------------------------*/

:root {

    /**
     * colors
     */
  
    --granite-gray: hsl(210, 1%, 37%);
    --eerie-black: hsl(240, 2%, 11%);
    --slimy-green: hsl(91, 100%, 30%);
    --fuzzy-wuzzy: hsl(0, 42%, 57%);
    --davys-gray: hsl(220, 2%, 28%);
    --cultured-1: hsl(228, 17%, 94%);
    --cultured-2: hsl(0, 0%, 96%);
    --dim-gray: hsl(240, 1%, 41%);
    --white_80: hsla(0, 0%, 100%, 0.8);
    --white_70: hsla(0, 0%, 100%, 0.7);
    --white_40: hsla(0, 0%, 100%, 0.4);
    --white_10: hsla(0, 0%, 100%, 0.1);
    --black_05: hsla(0, 0%, 0%, 0.05);
    --black_50: hsla(0, 0%, 0%, 0.5);
    --black_25: hsla(0, 0%, 0%, 0.25);
    --white-2: hsl(0, 0%, 98%);
    --white-1: hsl(0, 0%, 100%);
    --black: hsl(0, 0%, 0%);
  
    /**
     * theme colors
     */
  
    --hue: 227;
    --theme-bg: linear-gradient(to bottom, 
                  hsl(var(--hue, 227), 40%, 50%), 
                  hsl(var(--hue, 227), 40%, 60%));
    --theme-color: hsl(var(--hue, 227), 42%, 57%);
  
    /**
     * typography
     */
  
    --ff-roboto: "Roboto", sans-serif;
  
    --fs-1: 2.6rem;
    --fs-2: 2.2rem;
    --fs-3: 1.8rem;
    --fs-4: 1.4rem;
    --fs-5: 1.2rem;
  
    --fw-500: 500;
  
    /**
     * radius
     */
  
    --radius-4: 4px;
    --radius-5: 5px;
    --radius-10: 10px;
  
    /**
     * shadow
     */
  
    --shadow-1: 0 0 5px hsla(0, 0%, 0%, 0.05);
    --shadow-2: 0 0 10px hsla(0, 0%, 0%, 0.05);
  
    /**
     * transition
     */
  
    --transition: 0.15s ease;
    --cubic-out: cubic-bezier(0.05, 0.65, 0.25, 1);
  
  }
  
  
  
  
  
  /*-----------------------------------*\
    #RESET
  \*-----------------------------------*/
  
  *,
  *::before,
  *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
  }
  
  li { list-style: none; }
  
  a {
    text-decoration: none;
    color: inherit;
  }
  
  a,
  img,
  span,
  input,
  label,
  button,
  strong,
  ion-icon { display: block; }
  
  img { height: auto; }
  
  input,
  button {
    background: none;
    border: none;
    font: inherit;
  }
  
  input { width: 100%; }
  
  button { cursor: pointer; }
  
  strong { font-weight: normal; }
  
  ion-icon { pointer-events: none; }
  
  html {
    font-family: var(--ff-roboto);
    font-size: 10px;
    scroll-behavior: smooth;
  }
  
  body {
    background-image: var(--theme-bg);
    color: var(--eerie-black);
    font-size: 1.6rem;
    min-height: 100vh;
    padding-block: 30px;
    display: grid;
    grid-template-columns: 1fr;
    overflow: hidden;
    opacity: 0;
  }
  
  body.loaded {
    opacity: 1;
    transition: 0.3s ease;
  }
  
  :focus-visible { outline-offset: 4px; }
  
  :focus-visible:active { outline-offset: 2px; }
  
  
  
  
  
  /*-----------------------------------*\
    #REUSED STYLE
  \*-----------------------------------*/
  
  .container { padding-inline: 20px; }
  
  .container,
  .main,
  .app-box { height: 100%; }
  
  .h1,
  .h2 { font-weight: var(--fw-500); }
  
  .h1 { font-size: var(--fs-1); }
  
  .h2 { font-size: var(--fs-3); }
  
  
  
  
  
  /*-----------------------------------*\
    #HEADER
  \*-----------------------------------*/
  
  .app-box {
    position: relative;
    z-index: 1;
  }
  
  .header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
  }
  
  .header-title {
    color: var(--white-1);
    margin-block-end: 5px;
  }
  
  .header-time {
    color: var(--white-1);
    font-size: var(--fs-5);
  }
  
  .dropdown-wrapper { position: relative; }
  
  .menu-btn {
    color: var(--white-1);
    font-size: 16px;
    padding: 6px;
    border-radius: var(--radius-5);
  }
  
  .menu-btn:is(:hover, :focus) { background-color: var(--white_40); }
  
  .dropdown-container {
    position: absolute;
    top: calc(100% + 5px);
    right: 0;
    width: 200px;
    overflow: hidden;
    z-index: 3;
    visibility: hidden;
  }
  
  .dropdown-container.active { visibility: visible; }
  
  .dropdown-list {
    background-color: var(--white-1);
    border-radius: var(--radius-5);
    transform: translateY(-50%);
    box-shadow: var(--shadow-2);
    transition: none;
  }
  
  .dropdown-container.active .dropdown-list {
    transform: translateY(0);
    transition: 0.5s var(--cubic-out);
    transition-delay: 0.25s;
  }
  
  .dropdown-item { padding: 15px; }
  
  .item-title {
    color: var(--black);
    font-size: var(--fs-4);
    margin-block-end: 15px;
  }
  
  .theme-btn-group {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
  }
  
  .theme-btn {
    background-image: linear-gradient(to bottom, 
                        hsl(var(--hue, 227), 40%, 50%), 
                        hsl(var(--hue, 227), 40%, 60%));
    width: 100%;
    aspect-ratio: 1 / 1;
    outline: 2px solid transparent;
    outline-offset: 2px;
  }
  
  .theme-btn:is(:hover, :focus) { outline-color: var(--cultured-1); }
  
  .theme-btn.active { outline-color: var(--slimy-green); }
  
  .theme-btn:active { transform: scale(0.98); }
  
  .dropdown-link {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 15px;
  }
  
  .dropdown-link:is(:hover, :focus) { background-color: var(--black_05); }
  
  .dropdown-link:active { --black_05: hsla(0, 0%, 0%, 0.1); }
  
  .dropdown-link ion-icon {
    color: var(--dim-gray);
    font-size: 20px;
  }
  
  .dropdown-link .span {
    color: var(--eerie-black);
    font-size: var(--fs-4);
  }
  
  
  
  
  
  /*-----------------------------------*\
    #MAIN
  \*-----------------------------------*/
  
  .title-wrapper {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    min-width: max-content;
    user-select: none;
    z-index: -1;
  }
  
  .title-wrapper.hide { opacity: 0; }
  
  .title-wrapper .img {
    width: 90px;
    margin-inline: auto;
    margin-block-end: 10px;
  }
  
  .title-wrapper .h2 {
    color: var(--white-1);
    text-align: center;
  }
  
  .task-list {
    margin-block: 20px;
    max-height: calc(100vh - 200px);
    padding-inline-end: 4px;
    margin-inline-end: -4px;
    overflow-y: auto;
  }
  
  .task-list::-webkit-scrollbar { width: 2px; }
  
  .task-list::-webkit-scrollbar-thumb {
    background-color: transparent;
    border-radius: 5px;
  }
  
  .task-list:is(:hover, :focus-within)::-webkit-scrollbar-thumb {
    background-color: hsla(0, 0%, 0%, 0.5);
  }
  
  .task-item:not(:last-child) { margin-block-end: 2px; }
  
  .task-item {
    background-color: var(--cultured-1);
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 18px;
    border-radius: var(--radius-4);
    user-select: none;
  }
  
  .task-item:is(:hover, :focus-within) { background-color: var(--cultured-2); }
  
  .task-item:active { transform: scale(0.99); }
  
  .task-item .check-icon {
    --icon-color: var(--granite-gray);
    --icon-opacity: 0;
  
    position: relative;
    width: 20px;
    height: 20px;
    border: 2px solid var(--granite-gray);
    border-radius: 50%;
  }
  
  .task-item .item-icon:is(:hover, :focus) .check-icon { --icon-opacity: 1; }
  
  .task-item .item-icon:active .check-icon {
    --icon-color: var(--cultured-1);
    background-color: var(--granite-gray);
  }
  
  .task-item .check-icon::before,
  .task-item .check-icon::after {
    content: "";
    position: absolute;
    width: 9px;
    height: 2px;
    border-radius: 5px;
    background-color: var(--icon-color);
    opacity: var(--icon-opacity);
  }
  
  .task-item .check-icon::before {
    width: 6px;
    transform: rotate(45deg);
    top: 8px;
    left: 2px;
  }
  
  .task-item .check-icon::after {
    transform: rotate(-45deg);
    top: 7px;
    left: 5px;
  }
  
  .task-item.complete .check-icon {
    background-color: var(--theme-color);
    border-color: var(--theme-color);
    --icon-color: var(--cultured-1);
    --icon-opacity: 1;
    animation: scale-up 0.2s ease forwards;
  }
  
  @keyframes scale-up {
    0% { transform: scale(0.5); }
    100% { transform: scale(1); }
  }
  
  .task-item .item-text {
    font-size: var(--fs-4);
    padding-block-start: 2px;
  }
  
  .task-item.complete .item-text {
    color: var(--granite-gray);
    text-decoration: line-through;
  }
  
  .task-item .item-action-btn {
    margin-inline-start: auto;
    color: var(--dim-gray);
    opacity: 0;
  }
  
  .task-item:is(:hover, :focus-within) .item-action-btn { opacity: 1; }
  
  .task-item .item-action-btn:is(:hover, :focus) { color: var(--fuzzy-wuzzy); }
  
  .task-item .item-action-btn:is(:hover, :focus) ion-icon { --ionicon-stroke-width: 50px; }
  
  .input-wrapper {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
  }
  
  .input-field {
    background-color: var(--white_70);
    color: var(--eerie-black);
    font-size: var(--fs-4);
    padding: 14px;
    padding-inline-start: 50px;
    box-shadow: var(--shadow-1);
    border-radius: var(--radius-4);
  }
  
  .input-field::placeholder {
    color: var(--dim-gray);
    opacity: 0;
  }
  
  .input-field:focus::placeholder { opacity: 1; }
  
  .input-field:is(:hover, :focus) {
    background-color: var(--white_80);
    outline: none;
  }
  
  .input-text,
  .input-icon {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
  }
  
  .input-text {
    left: 50px;
    font-size: var(--fs-4);
    pointer-events: none;
  }
  
  .input-icon {
    left: 14px;
    font-size: 26px;
  }
  
  .input-field:is(:not(:placeholder-shown), :focus) ~ .input-text { opacity: 0; }
  
  .input-icon .circle-icon {
    color: var(--davys-gray);
    --ionicon-stroke-width: 40px;
  }
  
  .input-field:focus ~ .input-icon .add-icon,
  .input-field ~ .input-icon .circle-icon { display: none; }
  
  .input-field ~ .input-icon .add-icon,
  .input-field:focus ~ .input-icon .circle-icon { display: block; }
  
  
  
  
  
  /*-----------------------------------*\
    #MODAL
  \*-----------------------------------*/
  
  .app-info {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--black_50);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 4;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }
  
  .app-info.active {
    opacity: 1;
    visibility: visible;
  }
  
  .modal {
    background-color: var(--cultured-2);
    padding: 20px;
    padding-block-start: 30px;
    border-radius: var(--radius-5);
    max-width: 280px;
    width: 100%;
    transform: scale(1.1);
    transform-origin: bottom;
    transition: 0.15s var(--cubic-out);
  }
  
  .app-info.active .modal {
    transform: scale(1);
    transition-duration: 0.4s;
  }
  
  .modal-title {
    font-size: var(--fs-2);
    font-weight: var(--fw-500);
  }
  
  .modal-list { margin-block: 10px 30px; }
  
  .modal-item { font-size: var(--fs-4); }
  
  .modal-item:not(:last-child) { margin-block-end: 5px; }
  
  .modal-item > * { display: inline-block; }
  
  .modal-item .span { color: var(--dim-gray); }
  
  .modal-item a.span { color: var(--theme-color); }
  
  .modal-btn {
    width: 100%;
    min-height: 30px;
    font-size: var(--fs-4);
    background-color: var(--white-1);
    color: var(--black);
    border-radius: var(--radius-4);
    outline: 1px solid var(--cultured-1);
    box-shadow: 0 1.5px 1px var(--black_25);
  }
  
  .modal-btn:is(:hover, :focus) { background-color: var(--white-2); }
  
  .modal-btn:active {
    color: var(--dim-gray);
    box-shadow: none;
  }
  
  
  
  
  
  /*-----------------------------------*\
    #MEDIA QUERIES
  \*-----------------------------------*/
  
  /**
   * responsive for larger than 550px screen
   */
  
  @media (min-width: 550px) {
  
    /**
     * CUSTOM PROPERTY
     */
  
    :root {
  
      /**
       * typography
       */
  
      --fs-1: 3rem;
      --fs-3: 2.2rem;
      --fs-5: 1.4rem;
  
    }
  
  
  
    /**
     * HEADER
     */
  
    .dropdown-container { width: 280px; }
  
    .theme-btn-group { grid-template-columns: repeat(5, 1fr); }
  
  
  
    /**
     * MAIN
     */
  
    .title-wrapper .img { width: 100px; }
  
  }
  
  
  
  
  
  /**
   * responsive for larger than 768px screen
   */
  
  @media (min-width: 768px) {
  
    /**
     * REUSED STYLE
     */
  
    .container {
      max-width: 650px;
      width: 100%;
      margin-inline: auto;
    }
  
  
  
    /**
     * HEADER
     */
  
    .app-box {
      background-color: var(--white_10);
      padding: 25px;
      border-radius: var(--radius-10);
    }
  
  
  
    /**
     * MAIN
     */
    
    .task-list { max-height: calc(100vh - 250px); }
  
    .input-wrapper {
      bottom: 25px;
      left: 25px;
      right: 25px;
    }
  
  }