/* rem and em don not depend on html font size in media queries, Instead 1rem = 1em = 16px
rem: root font size
em:current font size
*/

/* *************only screen******* */

/* **************************** */
/* Below 1344px (Smaller Desktops) */
/* **************************** */

@media (min-width: 1200px) {
  body {
    max-width: 120rem;
    margin: 0 auto;
  }
  .canvas__div {
    padding: 20px;
  }

  #IBgraph {
    transform: scale(0.75);
    margin-top: -18%;
    margin-left: -24%;
    width: 131%;
  }

  #Vgraph {
    transform: scale(0.75);
    margin-top: -12%;
    margin-left: -19%;
    width: 131%;
  }
  #calculate {
    transform: scale(1);
  }
  #image_container {
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.9);
    margin-left: -520px;
  }
  .observation {
    transform: scale(0.8);
  }
  .model {
    margin: 0px;
  }
}

/* **************************** */
/* Below 1200px (Lanscape Tablets) */
/* **************************** */

@media (max-width: 75em) {
  body {
    width: 100%;
    margin: unset;
  }
  .title-div h1 {
    font-size: 2.5rem;
  }
  .task-title {
    font-size: 2rem;
  }
  .tool-menu {
    font-size: 2rem;
    gap: 2rem;
  }
  .icons {
    width: 3rem;
    height: 3rem;
  }
  .ctrl-icons {
    width: 3rem;
    height: 3rem;
  }

  .tool-list span {
    font-size: 1.2rem;
  }
  .canvas {
    display: block;
  }
  .div__control img {
    width: 3rem;
    height: 2.8rem;
  }

  .canvas__div {
    padding: 30px;
  }
  #IBgraph {
    transform: scale(0.85);
    margin-top: -11%;
    margin-left: -3%;
    width: 100%;
  }

  #Vgraph {
    transform: scale(0.8);
    margin-top: -6%;
    margin-left: 0%;
    width: 92%;
  }
  #calculate {
    transform: scale(1.1);
  }
  #image_container {
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.9);
    margin-left: -520px;
  }
  .observation {
    transform: scale(0.85);
  }
  #IBtableObservation {
    transform: scale(0.95);
  }
}

/* **************************** */
/* Below 944px ( Tablets) */
/* **************************** */

@media (max-width: 59em) {
  body {
    width: 100%;
    margin: 0;
  }
  .tool-link:link,
  .tool-link:visited {
    gap: 0.5rem;
    font-size: 1.4rem;
    flex-direction: column;
  }

  .title-div h1 {
    font-size: 2rem;
  }
  .sidebar {
    position: fixed;
    padding: 0;
    bottom: 0;
    left: 0;
    flex-direction: row;
    width: 100%;
    backdrop-filter: blur(10rem);
    z-index: 101;
    justify-content: space-evenly;
    border-radius: 0;
    scroll-behavior: auto;
    margin: 0;
  }
  .main {
    grid-column: 1/-1;
  }
  .tool-menu {
    list-style: none;
    display: flex;
    flex-direction: row;
    gap: 4rem;
    width: 100%;
    font-size: 2.4rem;
    justify-content: space-evenly;
    padding: 1rem;
  }
  #image_container {
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.85);
    margin-left: -525px;
  }

  .canvas {
    display: block;
  }
  .main-section {
    grid-template-columns: 1fr;
  }
  .canvas__div {
    grid-template-columns: 1fr;
  }
  .canvas {
    display: block;
    border: none;
  }
  .footer {
    margin-bottom: 78px;
  }

  #IBgraph {
    transform: scale(0.8);
    margin-top: -12%;
    margin-left: -14%;
    width: 108%;
  }
  #Vgraph {
    transform: scale(0.8);
    margin-top: -8%;
    margin-left: -4%;
    width: 108%;
  }
  #calculate {
    transform: scale(1.1);
    margin-left: 30px;
  }

  #IBtableObservation {
    transform: scale(1);
  }
}

/* **************************** */
/* Below 820px (Smaller Tablets) */
/* **************************** */
@media (max-width: 48em) {
  .main-section {
    grid-template-columns: 1fr;
  }
  /* .canvas__div {
    grid-template-columns: 1fr;
  } */
  .canvas__div {
    min-height: calc(100vh - 7 * 5.6rem);
    overflow: hidden;
    padding: 0rem;
  }
  .canvas {
    display: block;
    border: none;
  }
  .tool-list span {
    font-size: 1.6rem;
  }

  .footer {
    margin-bottom: 78px;
  }

  #IBgraph {
    transform: scale(0.7);
    margin-top: -15%;
    margin-left: -16%;
    width: 115%;
  }
  #Vgraph {
    transform: scale(0.6);
    margin-top: -8%;
    margin-left: -9%;
    width: 115%;
  }
  #calculate {
    transform: scale(1.1);
    margin-left: 11px;
    margin-top: 17px;
  }
  #image_container {
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.85);
    margin-left: -473px;
  }
  .observation {
    transform: scale(0.8);
  }

  #IBtableObservation {
    transform: scale(1);
  }
  .model {
    margin: 20px;
  }
}

/* **************************** */
/* Below 704px (Smaller Tablets) */
/* **************************** */
@media (max-width: 44em) {
  .canvas__div {
    grid-template-columns: 1fr;
  }
  .img-div {
    flex-direction: column;
  }
  .title-div {
    gap: 0rem;
    text-align: center;
  }
  .round {
    width: 0.6rem;
    height: 0.6rem;
  }
  .logo-div {
    width: 6.5rem;
  }
  .main__task-div:nth-child(4) {
    margin-bottom: 6rem;
  }

  .cross-img {
    width: 60%;
  }
  .canvas {
    display: block;
    /* width: 100%;
    height: 100%; */
    border: none;
  }
  .footer {
    margin-bottom: 78px;
  }

  #IBgraph {
    transform: scale(0.65);
    margin-top: -19%;
    margin-left: -20%;
    width: 122%;
    height: 460px;
  }
  #Vgraph {
    transform: scale(0.55);
    margin-top: -9%;
    margin-left: -29%;
    width: 151%;
  }
  #calculate {
    transform: scale(1);
    margin-left: 7px;
    margin-top: 6px;
  }
  .observation {
    transform: scale(0.7);
  }

  #IBtableObservation {
    transform: scale(1);
  }
  #image_container {
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.9);
    margin-left: -532px;
  }

  .model {
    margin: 50px;
  }
}

/* **************************** */
/* Below 540px (Smaller Tablets) */
/* **************************** */
@media (max-width: 34em) {
  .title-div h1 {
    font-size: 1.6rem;
  }

  .logo-div {
    width: 4.5rem;
  }
  .div__control {
    gap: 2rem;
  }
  .ctrl-icons {
    width: 2.5rem;
    height: 2.5rem;
  }
  .tool-menu {
    gap: 1.5rem;
  }
  .tool-list span {
    font-size: 1.2rem;
  }
  .task-title {
    font-size: 1.7rem;
  }
  canvas {
    width: 100%;
  }
  label,
  select,
  input,
  p {
    display: inline-block;
    font-size: 1.5rem;
  }
  .main {
    gap: 0.5rem;
  }
  .main-section {
    gap: 0.5rem;
  }
  .sidebar {
    border-radius: 0;
  }
  .canvas {
    display: block;
    border: none;
  }
  .div__control img {
    width: 2.7rem;
    height: 2.5rem;
  }
  .tooltip {
    font-size: 1rem;
  }
  .footer {
    margin-bottom: 78px;
  }

  #IBgraph {
    transform: scale(0.6);
    margin-top: -23%;
    margin-left: -35%;
    width: 151%;
  }

  #Vgraph {
    transform: scale(0.5);
    margin-top: -12%;
    margin-left: -39%;
    width: 179%;
  }
  #calculate {
    transform: scale(1);
    margin-left: 11px;
    margin-top: 50px;
  }
  .observation {
    transform: scale(0.57);
  }
  #IBtableObservation {
    transform: scale(1);
  }
  #instruct {
    font-size: 2rem;
  }
  #image_container {
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.72);
    margin-left: -427px;
  }
  .practice {
    margin: 0;
    padding: 0;
  }
  .model {
    margin: 60px;
  }
}

@media (max-width: 27em) {
  .objective {
    height: auto;
  }
  .sidebar {
    position: fixed;
    padding: 0;
    bottom: 0;
    left: 0;
    flex-direction: row;
    width: 100%;
    backdrop-filter: blur(10rem);
    z-index: 101;
    justify-content: space-evenly;
    border-radius: 0;
    scroll-behavior: auto;
  }
  .tool-menu {
    list-style: none;
    display: flex;
    flex-direction: row;
    gap: 3rem;
    width: 100%;
    font-size: 2.4rem;
    justify-content: space-evenly;
    padding: 1rem;
  }
  .canvas__div {
    min-height: calc(100vh - 7 * 5.6rem);
    overflow: hidden;
    margin: 0;
    padding: 0rem;
  }

  .apparatus-screen {
    grid-template-columns: 1fr;
  }
  .practice {
    margin: 0;
    padding: 0;
  }

  .quiz-div {
    padding: 0.5rem;
    width: 100%;
  }
  .answers {
    grid-template-columns: 1fr;
  }
  .practice-step-no {
    width: 3rem;
    height: 3rem;
  }
  .btn-next,
  .btn-reset,
  .btn-top {
    width: 3rem;
    height: 3rem;
  }
  .footer {
    margin-bottom: 78px;
  }

  #IBgraph {
    transform: scale(0.45);
    margin-top: -22%;
    margin-left: -62%;
    width: 203%;
  }
  #Vgraph {
    transform: scale(0.38);
    margin-top: -24%;
    margin-left: -70%;
    width: 240%;
  }
  #calculate {
    transform: scale(0.95);
    margin-left: 0px;
    margin-top: 10px;
  }
  .observation {
    transform: scale(0.47);
  }
  #IBtableObservation {
    transform: scale(1);
  }

  #image_container {
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.6);
    margin-left: -356px;
    margin-top: 55px;
  }
  .model {
    margin: 65px;
  }
}
/* 

- Font sizes (px)
10 / 12 / 14 / 16 / 18 / 20 / 24 / 30 / 36 / 44 / 52 / 62 / 74 / 86 / 98

- Spacing system (px)
2 / 4 / 8 / 12 / 16 / 24 / 32 / 48 / 64 / 80 / 96 / 128

 */