:root {
    --main-color: hsl(210, 35%, 75%);
    --main-color-dark: hsl(210, 25%, 60%);
    --main-color-light: hsl(210, 25%, 80%);

    --notification-color: hsl(210, 70%, 55%);
    
    --preview-hue: 150;
    --preview-color: hsl(var(--preview-hue), 70%, 55%);
  }

  body.light {
    --bg-color: #ffffff;
    --bg-hover-color: #e8e8e8;
    --text-color: #1f1f1f;
    --border-color: #e8e8e8;
  }
  
  body.dark {
    --bg-color: #1f1f1f;
    --bg-hover-color: #1a1a1a;
    --text-color: #f5f5f5;
    --border-color: #363636;
  }


  html {
      background: var(--bg-color);
  }

  body {
      font-family: Roboto, sans-serif;
      display: grid;
      place-items: center;
      background: var(--bg-color);
      color: var(--text-color);
  }



  .color-mode {
    --main-color: hsl(var(--main-hue), 70%, 55%);
    --main-color-dark: hsl(var(--main-hue), 70%, 40%);
    --main-color-light: hsl(var(--main-hue), 70%, 75%);
  }

  /* App Title */
  h1 {
      font-size: 38px;
      margin-top: 15px;
      margin-bottom: 10px;
      color:  var(--bg-color);
      -webkit-text-stroke: 2px var(--main-color); /* colore bordo e spessore */
      font-weight: bold;
  }

  /* Buttons */
  button {
      background-color:  var(--main-color);
      border: 3px solid #e8e8e8;
      color: white;
      padding: 12px 20px;
      font-size: 16px;
      font-weight: bold;
      border-radius: 57px;
      cursor: pointer;
      margin: 8px;
      transition: background 0.3s;
  }

  button:hover {
      background-color: var(--main-color-dark);
  }


  neutral-button {
      background-color:  var(--bg-color);
      border: 3px solid var(--main-color-dark);
      color: var(--main-color-dark);
      padding: 12px 20px;
      font-size: 16px;
      font-weight: bold;
      border-radius: 57px;
      cursor: pointer;
      margin: 8px;
      transition: background 0.3s;
      display: inline-block;
  }

  neutral-button:hover {
      background-color:  var(--bg-hover-color);
      border: 3px solid var(--main-color-dark);
      color: var(--main-color-dark);
  }


  account-button {
    display: block;
    width: 100%;
    text-align: center;
    box-sizing: border-box; 
    
    background-color: #fff;
    border: none;
    color: #aaa;
    padding: 8px 20px;;
    font-size: 14px;
    font-weight: normal;
    border-radius: 0px;
    cursor: pointer;
    margin: 0;
    transition: background 0.3s;
  }

  account-button:hover {
      background-color:  #ddd;
      color: #000;
  }

  account-button:not(:last-child) {
    border-bottom: 1px solid #eee;
  }


  /* Footer with buttons */
  #button-footer {
      position: fixed;
      bottom: 10px;     
      left: 10px;         
      right: 10px;       
      background-color: var(--bg-color);
      padding: 10px 0;
      display: flex;
      justify-content: center;
      border-radius: 57px;
      border: 3px solid var(--border-color);
      box-shadow: 0 -5px 5px rgba(0,0,0,0.05);
      z-index: 998;
  }


  /* Calendar */
  .calendar {
      width: 350px; 
  }

  .calendar-header {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 22px;
      margin-bottom: 10px;
      font-weight: bold;
  }

  .month-btn {
      background: none;
      border: none;
      color: var(--main-color);
      font-size: 22px;
      cursor: pointer;
      padding: 5px 10px;
  }

  .month-btn:hover {
      background: none;
      color: var(--main-color-dark);
  }


  .weekdays {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
  }

  .days {
      display: grid;
      grid-template-columns: repeat(7, 1fr);
      gap: 2px;
  }  

  .weekdays div {
      text-align: center;
      font-weight: bold;
      padding: 5px 0;
  }

  .days div {
      border: 1px solid #a2a1a1;
      background: var(--bg-color);
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      aspect-ratio: 1 / 1;
      transition: filter 0.3s ease;
  }

  .days div:hover {
      filter: brightness(0.9);
  }


  .days div.completed {
      background-color: var(--main-color);
      color: white;
      font-weight: bold;
  }

  .days div.selected {
      background-color: var(--main-color-light);
      color: white;
      font-weight: bold;
      border: 2px solid #696969;
  }


  .today {
      font-weight: bold;
      font-size: 24px;
  }


  /* Hide elements */
  .hidden-day-buttons {
      display: none !important;
  }

  .hidden-task-buttons {
      display: none !important;
  }

  .semi-transparent {
      opacity: 0.4;
      pointer-events: none;
  }

  /* Buttons to select/deselect days */
  #add-btn {
      font-size: 30px;
  }

  #cancel-btn {
      font-size: 30px;
      background-color: #ff6663;
  }

  #task-btn.warning {
      background-color: var(--main-color-dark);
      transform: scale(0.95);
  }


  /* Progress bar */
  .progress-wrapper {
    width: 350px;
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 15px 0;
    margin-bottom: 10px;
  }

  .progress-container {
    flex: 1;
    height: 16px;
    background-color: var(--bg-hover-color);
    border-radius: 16px;
    overflow: hidden;
  }

  .progress-bar {
    height: 100%;
    width: 0%;
    background-color: var(--main-color);
    border-radius: 16px;
    transition: width 0.4s ease;
  }

  .progress-text {
    font-weight: bold;
    color: var(--main-color);
    min-width: 40px;
    text-align: right;
  }


  #message {
    font-weight: bold;
    font-size: 20px;
    color: var(--main-color-dark);
    text-align: left;
    padding: 40px 0px;
  }

  /* Grey overlay when floating panel opens */
  #overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.3);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 999;
  }


  #floating-panel {
    position: fixed;

    left: 10px;
    right: 10px;
    bottom: 10px;

    background: var(--bg-color);
    border-radius: 57px;
    border: 3px solid var(--border-color);
    box-shadow: 0 -5px 5px rgba(0,0,0,0.05);

    display: flex;
    flex-direction: column;

    transform: translateY(150%);
    transition: transform 0.4s ease;
    max-height: 80dvh;

    z-index: 1001;
  }

  #floating-panel.active {
    transform: translateY(0);
  }


  .panel-header {
    padding: 16px;
    background: var(--bg-color);
    color: #aaa;
    text-align: right;
    padding-right: 30px;
    font-weight: normal;
    font-size: 16px;
    cursor: pointer;
    border-top-left-radius: 57px;
    border-top-right-radius: 57px;
    transition: opacity 0.2s ease;
    border-bottom: 2px solid var(--border-color);
  }

  .panel-header:hover {
    background-color:  var(--bg-hover-color);
    color: #666;
  }


  .panel-content {
    padding: 0px 20px;
    display: flex;
    flex-direction: column;
    flex: 1; 
    overflow-y: auto;
    gap: 15px;
    box-shadow: inset 0 6px 8px -6px rgba(0,0,0,0.2);     
  }

  .panel-footer {
    padding: 10px 20px;
    border-top: 2px solid var(--border-color);
  }

  #overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }


  /* Elements in the panel */
  .task-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
  }

  .task-actions button {
    flex: 1;
  }

  #addTask-btn {
    font-size: 30px;
    margin-top: 8px;
    padding: 8px 20px;
  }

  .color-picker-row {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .color-label {
    font-size: 16px;
    font-weight: 600;
    color: #555;
    min-width: 55px;
  }

  .task-top-row {
    display: flex;
    align-items: center;
    gap: 20px;
  }

  #task-list {
    display: flex;
    flex-direction: column;
    padding: 5px 0px;
    gap: 5px;
  }

  #task-editor {
    display: flex;
    justify-content: flex-end;
    padding: 0px 40px;
    gap: 20px;
  }

  #notifications-panel-footer {
    display: flex;
    justify-content: flex-end;
    padding: 0px 40px;
    gap: 20px;
  }

  .editing-mode .task-item:not(.editing) {
    opacity: 0.25;
    transform: scale(0.95);
  }

  .editing-mode .task-item {
    pointer-events: none;
  }

  .editing-mode .task-item.editing {
    background: var(--preview-color) !important;
  }

  #task-name {
    font-size: 16px;
    flex: 1;      
    min-width: 0;      
    padding: 10px 10px;
    border-radius: 10px;
    border: 2px solid #d8d8d8;
  }

  #task-form {
    display: flex;
    flex-direction: column;
    gap: 5px; 
    justify-content: center;
    margin: 0px;
  }

  /* Hue slider */
  #task-hue {
    flex: 1;
    width: 100%;
    height: 14px;
    border-radius: 10px;
    outline: none;
    appearance: none;
    background: linear-gradient(
      to right, 
      hsl(0,70%,55%),
      hsl(60,70%,55%),
      hsl(120,70%,55%),
      hsl(180,70%,55%),
      hsl(240,70%,55%),
      hsl(300,70%,55%),
      hsl(360,70%,55%)
    );
  }

  /* Thumb slider */
  #task-hue::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 3px solid var(--main-color);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  }

  #task-hue::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    border: 3px solid var(--main-color);
    cursor: pointer;
  }

  /* Preview circle */
  #hue-preview {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid #e8e8e8;
    background-color: hsl(156, 70%, 55%);
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
    flex-shrink: 0;
  }


  #auth-area {
    display: flex;
    align-items: center;
    gap: 10px;
  }



  #account-floating-panel {
    position: fixed;
    bottom: 110px;
    left: 50%;
    transform: translateX(-50%);
  
    background: white;
    border-radius: 40px;
    border: 3px solid #e8e8e8;
    box-shadow: 0 -5px 5px rgba(0,0,0,0.05);
  
    display: flex;
    flex-direction: column;
    align-items: stretch;
  
    width: max-content;   
    min-width: 180px;       
    max-width: 90vw;    
    overflow: hidden;
  
    padding: 0;
    gap: 0;
  
    transition: all 0.35s ease;
    z-index: 1002;
  }


  #profile-btn {
    background: none;
    border: 3px solid #ccc;
    padding: 0;
    cursor: pointer;
    display: grid;
    place-items: center;
  }


  #user-photo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
  }


  .task-item {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 57px;
    padding: 12px 12px;
    border: 3px solid #e8e8e8;
    padding-left: 20px;
    transition: filter 0.3s ease;

    
    font-weight: bold;
    color: white;
    pointer-events: auto;
  }

  
  .task-actions {
    position: relative;
  }
  
  .task-more {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255,255,255,0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: bold;
    font-size: 20px;
    line-height: 1;  
    padding: 0;
    transition: background 0.2s ease;
  }
  
  .task-more:hover {
    background: rgba(255,255,255,0.4);
  }
  
  /* MENU */
  .task-menu {
    position: absolute;
    top: 30px;
    right: 0;
    width: auto;
    background: var(--bg-color);
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    display: inline-block;
    overflow: hidden;
  
    opacity: 0;
    transform: scale(0.8);
    transform-origin: top right;
    transition: all 0.2s ease;
    z-index:1001; 
    pointer-events: none;
  }
  
  /* quando attivo */
  .task-menu.show {
    transform: scale(1);
    opacity: 1;
    z-index: 2000;
    pointer-events: auto;
  }

  .task-menu.above {
    top: auto;
    bottom: 30px;
    transform-origin: bottom right;
  }
  
  .menu-item {
    padding: 10px 16px;
    cursor: pointer;
    font-size: 14px;
    color: #aaa;
  }
  
  .menu-item:hover {
    background-color:  #ddd;
    color: #000;
  }
  
  .menu-item.delete {
    color: #e74c3c;
  }





  #stats-floating-panel {
    position: fixed;

    left: 10px;
    right: 10px;
    top: 75px;

    background: var(--bg-color);
    border-radius: 57px;
    border: 3px solid var(--border-color);
    box-shadow: 0 -5px 5px rgba(0,0,0,0.05);

    display: flex;
    flex-direction: column;
    overflow: hidden;

    transform: translateY(150%);
    transition: transform 0.4s ease;

    z-index: 1001;
  }

  #stats-floating-panel.active {
    transform: translateY(0);
  }

  #stats-panel-content{
    padding-top: 10px;
    align-items: center;
  }


  .bar-chart{
    width: 95%;
    height: 400px; 
    background: var(--bg-color);
    border-radius: 57px;
    border: 3px solid var(--border-color);
    box-shadow: 0 -5px 5px rgba(0,0,0,0.05);
    font-size: 10px;
    display: flex;
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-around;
    
    gap: 10px;
    padding: 30px 10px;
  }

  .bar {
    width: 40px;
    background-color: hsl(var(--main-hue), 70%, 55%, 0.8);
    border: 2px solid rgba(var(--main-color), 1);
    text-align: center;
    color: white;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    transition: 0.3s;
  }
  
  .bar:hover {
      background-color: hsl(var(--main-hue), 70%, 40%, 0.8);
      border: 2px solid rgba(var(--main-color-dark), 1);
      transform: scale(1.1);
  }

  #chart-tooltip {
    position: absolute;
    pointer-events: none;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    z-index: 5000; 
    display: none;
  }




#notifications-floating-panel {
    position: fixed;
    padding: 0px;
    left: 30px;
    right: 30px;
    top: 200px;

    background: var(--bg-color);
    border-radius: 57px;
    border: 3px solid var(--border-color);
    box-shadow: 0 -5px 5px rgba(0,0,0,0.05);

    display: flex;
    flex-direction: column;
    overflow: hidden;

    transform: translateY(400%);
    transition: transform 0.4s ease;

    z-index: 1001;
  }

  #notifications-floating-panel.active {
    transform: translateY(0);
  }

  #notifications-panel-content {
    padding-top: 10px;
    place-items: center;
    display: flex;
    flex-direction: column;  
    gap: 20px;
    align-items: center;     
    text-align: center;  
  }

  #reminderTime {
    appearance: none;
    border-radius: 16px;
    padding: 10px 14px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    text-align: center;
  }

  #reminderDays {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
  }

 .flag {
    background: var(--bg-color);
    color: var(--text-color); 
    text-align: center;
    font-weight: bold;
    font-size: 18px;
    place-items: center;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    height: 25px;
    width: 25px;
    padding: 0px;
    margin: 0px;
  }

  .flag.clicked {
    background: var(--notification-color);
    color: white; 
  }

  .flag:hover {
    filter: brightness(0.9);
  }


  #confirm-notification {
    border: 3px solid var(--notification-color);
    color: var(--notification-color);
  }