/* Stylesheet for myphysicslab
* Organization of this style sheet is roughly similar to our typical page:
* HTML & BODY
* HEADER-BAR (LOGO, TABS, LANGUAGE MENU, NAV-LINKS)
* CANVAS
* UI CONTROLS
* GENERAL TEXT & HEADINGS
* MATH-IN-HTML
* IMAGES
* FOOTER
*/

/* After orientation change (portrait to landscape), to keep the text from getting
* bigger we need webkit-text-size-adjust:none
*/
html {
  -webkit-text-size-adjust: none;
}
body {
    background-color: white;
    color: black;
    margin: 0 0.1in;
    /*font-family: Palatino, "Book Antiqua", Times, "Times New Roman", serif;  */
    font-family: Georgia, "Bitstream Charter", serif;
    line-height: 1.25em; /* gives leading of 0.25em between lines: 1.25em - 1.0em font size */
    }

/****** HEADER BAR: LOGO, TABS, LANGUAGE MENU, NAV-LINKS **********/

a#logo {
  float: right;
  margin: -9px 5px 0 0;
}
ul#header_bar, ul.horiz_tabs {
  padding: 3px 0;
  margin: 3px 0;
}
ul.horiz_tabs {
  border-bottom: 1px solid #778;
}
ul#header_bar li {
  list-style: none;
}
ul.horiz_tabs li {
  list-style: none;
  display: inline;
  padding: 3px 0.5em;
  margin: 0 3px 0 0;
  border: 1px solid #778;
  border-bottom-color: #DDE; /* same as background */
  background: #DDE;
  text-decoration: none;
  font: bold 12px Verdana, sans-serif;
  white-space: nowrap;
}
ul.horiz_tabs li.selected {
  background: white;
  border-bottom-color: white; /* same as background */
}
/* this div contains language_menu and next/prev nav_links */
div#header_nav {
  clear: right; /* because logo is above */
  float: right;
  display: inline-block;
  margin: 0 0.5em 0 0;
}
select#language_menu {
  margin: 0 0 0 0.5em;
}
a.nav_link {
  font: 100% sans-serif;
  margin: 0 0 0 0.5em;
}


/********  CANVAS  ********/

/*see also SimController.mouseDown;  it has a fix for 'cursor change while drag' */
/* Note Nov 22 2016: the 'outline: none' solves a performance problem that is visible
 * as a "stutter" when using "black with trails" background mode. */
canvas {
    cursor: crosshair;
    border:1px solid silver;
    outline: none; /* turns off outline drawn when selecting with mouse */
    width: 100%;
    /*-webkit-tap-highlight-color: rgba(255, 255, 255, 0);*/
}
/* Removed Jan 10 2016 because it results in empty space below SimView when
window is resized to be wide.
landscape mode:  leave blank area on right for user to scroll on iPhone etc
@media screen and (orientation:landscape) {
  canvas {
    width: 92%;
  }
}
*/
canvas:active {
    cursor: default;
    border:1px dashed red;
}

/*********** UI CONTROLS *************/

div.control_container {
  clear: both; /* otherwise floating nav-links above are covered up, can't click */
  width: 100%;
}
div.control_container p {
  margin-top: 0em;
  margin-bottom: 0em;
}
div.control_group {
  vertical-align: top;
}
textarea {
  font-family: monospace, monospace;
  border:1px solid silver;
  max-width: 50em;
}
label {
  white-space: nowrap; /* keep checkbox and label text together */
}
div.slider {
  display: inline;
}
label, div.slider {
  font-family: sans-serif;
  font-size: 90%;
  margin-left: 0.3em; margin-bottom: 0.3em;
}
div.control_container input, div.control_container select {
  margin-left: 0.7em; margin-right: 0.3em;
}
/* align slider controls, fixes Firefox layout */
div.control_container input[type='range'] {
  vertical-align: bottom;
}

button.icon {
  margin: 0;
  padding: 0;
  border-style: none;
  background-color: transparent;
}
button.icon:active {
  background-color: gray;
}
/* kludge for Firefox to get buttons to be same size as icon images they contain.
* http://stackoverflow.com/questions/8859908/buttons-too-tall-on-firefox
*/
button::-moz-focus-inner {
  border: 0;
  padding: 0;
}

/****** GENERAL TEXT & HEADINGS **********/

h2, h3, h4, h5 {
    font-size: 115%;
    font-family: sans-serif;
    border-top: 3px solid #328DAE;
    /*color: #f90;  /* #f90 is orange.  Opera doesn't recognize 'orange' */
    /* other colors I liked:  #36c is a dark blue */
    color: #328DAE;
    margin: 0.5in 0 0.4in 0;
    clear: both;
    max-width: 50em;
    }
h1 {
  margin-top: 12px;
  margin-bottom: 4px;
  font: bold 130% sans-serif;
  color: #328DAE;
}


p {
  margin: 1em 0.5em;
  max-width: 50em;
  }

p.introduction {
  clear: both;
  }

p.instructions, p.hint {
  margin: 0.8em 2cm 0.8em 1cm;
  max-width: 40em;
  font-style: italic;
  text-align: left;
}

p.hint {
  text-align: right;
  font-size:80%;
}

p.list {
  margin-top:0cm;
  margin-bottom:0cm;
  margin-left:1cm;
}

p.quote {
  margin: 0.5em 1.5cm;
  text-align: left;
  font-size: 90%;
}
ul, ol {
  max-width: 45em;
}
li {
    margin-top:0.5em;
    margin-bottom:0.5em;
    }
code {
  font-family: monospace, monospace;
  font-size: 100%;
	}

/****** MATH-IN-HTML **********/

/* inline equations */
span.inline-math { white-space: nowrap; }

*.html-math sup,
*.html-math sub {
    font-size: 90%;
    }
*.fraction,
*.display-equation,
*.table-equation {
    margin-top:0.5em;
    margin-bottom:0.5em;
    text-align: center;
    vertical-align: middle;
    max-width: 50em;
    }
div.big_fraction {
    margin: 0.5em 0;
    padding: 0.5em;
    text-align: center;
    max-width: 50em;
  }

/* left aligned equations. created Dec 2007*/
span.aligned_eqn {
   display: block;
   }
*.aligned_eqn {
   margin-top:0.5em;
   margin-bottom:0.5em;
   margin-left: 2em;
   text-align: left;
   vertical-align: middle;
   }
table {
    max-width: 50em;
    margin-right: 0.5em;
    margin-left: 0.5em;
  }

/* inline fraction table  NOT USED??? */
table.inline_frac {
    display:inline;
    margin-top:0;
    margin-bottom:0;
    text-align: center;
    vertical-align: middle;
    }

/* (note: don't use display:block on tables, it screws up NN tables) */
/* bigger line-height helps make eqns without ^2 more equal to those with ^2 */
*.aligned_eqn,
*.display-equation,
table.numbered-equation {
    line-height: 2em;
    }
*.fraction {
    line-height: normal; /* for when fraction is wrapped by numbered-equation */
    }

table.fraction {
    margin-right: auto;
    margin-left: auto;
  }

/* numbered equations done with a table */
/* width slightly less than 100% because of bugs in IE when alongside an image
   see dbl_pendulum page. */
table.numbered-equation {
    width:99%;
    text-align: center;
    vertical-align: middle;
    margin-top:0.5em;
    margin-bottom:0.5em;
    max-width: 50em;
    }

ul.vars {
    list-style-type:none;
    margin-top:0.5em;
    margin-bottom:0.5em;
    }

span.bigg { font-size:150%; }  /* for big math symbols */

span.vector {text-decoration:overline; font-weight: bolder; font-size: 110%; }

span.nobr { white-space:nowrap; }  /* for setting where to break long equations */

td { white-space: nowrap; }

td.upper_line { border-top:solid 1px black; } /* for horiz line in fractions */

/*td.eqn_blank { text-align:left; width:2em; } /* for left side of numbered equations */
td.equation-number { text-align:right; width:2em; } /* for numbered equations */

*.emphasized {  border: solid 2px #f90; }
div.emphasized {
    margin: 0.5em 0;
    padding: 0.5em;
    text-align: center;
    border: solid 2px #f90;
    max-width: 50em;
    }

span.text { font-size:90%; }  /* smaller text within math expressions */


/******** IMAGES ********/

img {
  border: none;
  margin: 0;
}

/* give images a smaller centered font for picture captions */
div.image {
    float: left;
    margin:0;
    text-align: center;
    font-size: 90%;   /* small */
    font-family: sans-serif;
    }

/* for centered images */
div.centered_image {
    margin:0.5em 0;
    text-align: center;
    font-size: 90%;   /* small */
    font-family: sans-serif;
    }

/****** FOOTER ********/

p#page_history {
  max-width: none;
  font: normal 80% Verdana, sans-serif;
  text-align: center;
}

div#footer2 {
  text-align: right;
  margin: 1.2em 0 0.3em 0;
}

div#copyright {
  display: inline-block;
  float: left;
  text-align: left;
  font: bold 90% Verdana, sans-serif;
}

span#revised_date {
  font-weight: normal;
  font-size: 80%;
}

div#footer2 a.nav_link {
  vertical-align: 50%;
}

a#valid_html {
  margin: 0 0.5em;
}