/**
 * set the box-sizing property to border-box
 * all elements will include padding and border in the width and height
 * the star selector is a universal selector - selects all elements
 * the before and after pseudo-elements are included
 * now the width property value will be subtracted to include padding and border
 * default model is content-box - padding and border are added to the width and height
 * works best for most designs 
 * - however if width is small and padding is large overflow can occur
 */
*,
*:before,
*:after {
  box-sizing: border-box;
}

/**
  * set the min-height to 100dvh
  * dvh is the dynamic viewport height
  * it will adjust based on the changing viewport height
  * if the browser adds controls or the viewport height changes
  * the min-height will adjust to the new height
  */
html {
  font-family: sans-serif;
  min-height: 100dvh;
}

/**
  * multiple backgrounds
  * background is the shorthand property
  * url() is the background-image property
  * repeat-x is the background-repeat property
  * fixed is the background-attachment property
  * top image and the gradient will be fixed to the viewport
  * page content will scroll and the background will remain fixed
  */

/* prettier-ignore */
body {
  margin: 0;
  min-height: 100dvh;
  background:
    url(images/club-rotate.webp) fixed no-repeat top 20px left 15px / 200px 200px,
    url(images/spade-rotate.webp) fixed no-repeat top 20px right 15px / 200px 200px,
    url(images/heart-rotate.webp) fixed no-repeat bottom 20px left 15px / 200px 200px,
    url(images/diamond-rotate.webp) fixed no-repeat bottom 20px right 15px / 200px 200px,
    fixed linear-gradient(to bottom,
      rgb(255, 0, 0) 40%,
      rgb(0, 0, 0) 63%) #000;
}

/**
  * create a grid container
  * no columns or rows are defined
  * the grid will automatically create columns and rows
  * based on the content
  * max-width is 800px
  * div is a block-level element
  * it will try to take up the full width of the container
  * never larger than 800px
  */

.wrapper {
  display: grid;
  max-width: 800px;
  border: 2px solid white;
  border-radius: 10px;
  background: rgb(99, 0, 0);
  margin-top: 10px;
  margin-bottom: 10px;
}

/**
  * display flex - create a flex container
  * flex direction is row (left to right)
  * all elements will shrink to the minimum size of the content
  * and flow from left to right
  * multiple background images (gradients behave like images)
  * background is the shorthand property
  * url() is the background-image property
  * no-repeat is the background-repeat property
  * top 0px right 0px is the background-position property (x, y)
  * the additional value after the keyword is the offset
  * place the image in the top right corner
  * then move it 0px down and 0px left
  * positive values move in towards the center of the element
  * negative values move out away from the element
  * / 50px 50px is the background-size property (width, height)
  * keyword cover is the background-size property
  * cover will scale the image to cover the entire container
  * contain will scale the image to fit inside the container
  * cover is used most often
  * background color must always be last
  * a stacking order is created
  * first background image/gradient is on top
  * last background image/gradient is on the bottom
  */
/* prettier-ignore */
header {
  display: flex;
  border-radius: 10px;
  border: 2px solid gray;
  margin: 20px;
  background:
    url(images/amazed.webp) no-repeat top left / 100px 100px,
    url(images/ace.webp) no-repeat center center / cover,
    linear-gradient(to bottom,
      hsl(0, 100%, 48%),
      hsl(0, 100%, 44%)) #000;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.8);
}

/**
  * h1 is a flex item of the flex container
  * flex-grow is 1 - don't shrink wrap around the content
  * flex-shrink is 1 - allow the item to shrink to fit the container
  * flex-basis is auto - the initial size of the item
  * the flex direction is row (left to right) layout the h1 in the row direction
  * margin is 0 remove the default margin - creating an edge-to-edge design
  * line-height is 4 * font-size - this will set the actual height of the line box
  * the text will be vertically centered in the in the line box
  * background is a gradient
  * border-radius is 10px all 4 corners - will be overridden in the media query
  */
/* prettier-ignore */
header h1 {
  flex: 1 1 auto;
  margin: 0;
  color: #fff;
  line-height: 4;
  text-align: center;
  letter-spacing: 2px;
  text-shadow: 0 -2px 2px rgba(0, 0, 0, 0.6);
  background:
    transparent linear-gradient(to bottom,
      hsla(0, 100%, 68%, 0.747) 20px,
      hsla(0, 56%, 48%, 0.705) 40px,
      rgb(85, 10, 10));
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
  font-size: x-large;
}

/**
  * sup is a superscript element
  * used for footnotes, endnotes, power, and exponents
  * font-size is 0.6 * inherited font-size
  * find the value of the inherited font-size from the parent element
  * multiply by 0.6
  * use the Developer Tools Computed tab/panel to find the actual font-size of the parent element
  */
header h1 sup {
  font-size: 0.6em;
}

/**
  * background gradient
  * small gradient on top
  * first color is 0% from the top
  * second color is 5% from the top
  * third color is 20% from the top (same color as the background)
  */
/* prettier-ignore */
section {
  margin: 20px;
  border: 2px solid white;
  border-radius: 10px;
  padding: 10px;
  box-shadow: 0 4px 4px rgba(0, 0, 0, 0.8);
  background:
    linear-gradient(to bottom,
      hsl(0, 100%, 40%) 0%,
      hsla(0, 100%, 40%, 0.5) 5%,
      hsl(0, 100%, 90%) 50%,
      hsla(0, 100%, 40%, 0.5) 95%,
      hsl(0, 100%, 40%) 100%) #fff;
}

/**
  * margin 24px on top and bottom
  * zero on right and left
  * 6px on bottom (override the 24px)
  */
h2 {
  margin: 20px 0 7px;
}

/**
  * use larger line-height for improved readability
  * set maximum width to 60ch (60 characters) for improved readability
  */
p {
  margin: 55px 0 50px;
  line-height: 1.4;
  max-width: 60ch;
}

/**
  * Responsive Images
  * set width to 100%
  * images will scale to fit the container
  * percentage is based on the width of the containing block (parent element)
  */
img {
  width: 100%;
}






.nav-main {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 9999;
  line-height: 0;
  background: #90ee90;
}

.nav-main-menu-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  line-height: 0;
}

/* SET SVG TRANSFORMS - based on individual elements not SVG box */
.nav-main-menu-toggle svg * {
  transform-box: fill-box;
  margin-bottom: 10px;
  border-radius: 4px;
  transition: all .5s cubic-bezier(.08, .81, .87, .71);
}

/* HAMBURGER MENU ICON */
.nav-main-menu-toggle rect:nth-child(1) {
  transform-origin: bottom left;
}

.nav-main-menu-toggle rect:nth-child(2) {
  transform-origin: center;
}

.nav-main-menu-toggle rect:nth-child(3) {
  transform-origin: bottom right;
}

/* JAVASCRIPT WILL ADD - aria-expanded="true" - to .nav-main-menu-toggle */
.nav-main-menu-toggle[aria-expanded="true"] rect:nth-child(1) {
  transform: rotate(45deg) translate(0px, -5px);
}

.nav-main-menu-toggle[aria-expanded="true"] rect:nth-child(2) {
  transform: rotate(495deg) translate(0px);
}

.nav-main-menu-toggle[aria-expanded="true"] rect:nth-child(3) {
  transform: rotate(45deg);
  opacity: 0;
}

/* END - .nav-main-menu-toggle */

#nav-main-menu {
  transform: translateX(-100%);
  transition: all 0.5s ease-in-out;
  position: absolute;
  width: 40vw;
  background: #f08080;
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  visibility: hidden;
  flex-direction: column;
}

#nav-main-menu:not([hidden]) {
  visibility: visible;
  transform: translateX(0) rotate(360deg);
  transition: all 0.5s ease-in-out;
}

#nav-main-menu li a {
  color: inherit;
  display: flex;
  line-height: 3;
  padding: 0 2em;
  transition: all 0.25s ease-in-out;
}

#nav-main-menu li a:hover,
#nav-main-menu li a:focus {
  background: whitesmoke;
  transform: rotate(5deg);
}

#nav-main-menu li a:active {
  transition: none;
  transform: rotate(-5deg);
}



/**
  * Setup flex container
  * elements flow in row direction (left to right)
  * gap between elements is 20px
  * margin is 0 on top 
  * 20px on right and left
  * 20px on bottom
  */
footer {
  display: flex;
  gap: 20px;
  margin: 0 20px 20px;
}

/**
  * All anchor pseudo states
  * remove default text decoration
  * color is white
  * height is 2 * font-size (2 * 16 = 32)
  */
footer a {
  color: white;
  text-decoration: none;
  line-height: 2;
}

/**
  * first child of footer
  * margin-right is auto
  * as a flex item margin auto will consume all available space (unused pixels
  * the other flex items will be pushed to the right)
  */
footer a:first-child {
  margin-right: auto;
}

/**
  * square brackets are attribute selectors
  * href^="javascript" means href attribute starts with javascript
  * the $ means ends with
  * the * means contains
  * the ~ means contains word
  * the | means starts with
  * the ^ means starts with
  * the = means is equal to
  * the != means is not equal to
  * position is relative (setting up for the active state - moving the element down 2px)
  * style like a button
  */
footer a[href^="javascript"] {
  position: relative;
  color: #000;
  background-color: #fff;
  border-radius: 3px;
  padding: 0 10px;
  box-shadow: 0 2px 2px #000;
}

footer a[href^="javascript"]:active {
  top: 2px;
  box-shadow: none;
}




.callout {
  font-family: monospace;
  background: linear-gradient(to right, #4ff3ff 0%, #079cff 30%);
  padding: 20px;
  border-radius: 10px;
}

.callout-heading {
  color: black;
  font-size: 2.5em;
  text-transform: uppercase;
  margin-left: 50%;
}

.callout-intro {
  color: black;
  font-size: 1.5em;
  margin-right: 50%;
}

.subscribe-newsletter {
  --color-button-dark: #800000;
  --z-index: -1;
}

.subscribe-newsletter {
  transition: all 1s ease-in;
}

.subscribe-newsletter {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

#first-set {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: none;
  margin-left: 50%;
}

#second-set {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: none;
}

.subscribe-newsletter fieldset:first-child {
  flex: 1 1 auto;
}

.subscribe-newsletter #first-set::after {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  background: url("images/loader.svg") no-repeat center;
  z-index: var(--z-index, -1);
}

.subscribe-newsletter input:not([type="radio"]):not([type="checkbox"]) {
  -webkit-appearance: none;
  border: none;
  border-radius: 10px;
}

.subscribe-newsletter input {
  position: relative;
  font-family: inherit;
  font-size: 1.2em;
  line-height: 2.4;
  letter-spacing: 0.05em;
  padding: 0 .5em;
  color: var(--color-button-dark);
}

.subscribe-newsletter input::placeholder {
  position: relative;
}

.subscribe-newsletter input::placeholder {
  transition: transform 0.7s ease-in-out;
}

.subscribe-newsletter input:focus::placeholder {
  transform: rotate(180deg);
  transition: transform 0.7s ease-in-out;
}

.subscribe-newsletter input[type=submit],
.subscribe-newsletter input[type=submit]:invalid {
  background: var(--color-button-dark);
  color: white;
  font-weight: bold;
  text-transform: uppercase;
  padding: 0 1em;
  transition: all 1s cubic-bezier(0.53, -0.13, 0.51, 1.19);
  cursor: pointer;
  margin-bottom: 20px;
  margin-right: 50%;
}

.subscribe-newsletter:valid input[type=submit] {
  margin-right: 0;
  margin-left: 50%;
}

.subscribe-newsletter input[type=submit]:hover,
.subscribe-newsletter:valid input[type=submit]:hover {
  transition: none;
  border-top: inset 5px black;
  border-right: inset 5px black;
}

.subscribe-newsletter input[type=submit]:active,
.subscribe-newsletter:valid input[type=submit]:active {
  transition: none;
  border-top: inset 2px black;
  border-right: inset 2px black;
  border-left: inset 3px black;
  border-bottom: inset 3px black;
}

.callout:has(.subscribe-newsletter:valid) {
  background: none;
  background: linear-gradient(to right, #4ff3ff 0%, #079cff 80%);
}

.subscribe-newsletter label {
  line-height: 1.625em;
  font-size: 1.2em;
}

.subscribe-newsletter .subscribe-newsletter-message-error {
  background: #f00;
  border-radius: 5px;
}

.subscribe-newsletter .subscribe-newsletter-message-success {
  font-size: 1.6em;
  flex: 1;
  text-align: center;
}



/*
 Start Media Query
     if screen is 48rem or larger (can use px or em)
     rem is based on font size of root element
         (16px * 48 = 768)
     use the following rules
 */

@media (min-width: 48rem) {
  /**
      * override the margin of the container 
      * margin is now 20px on top and bottom
      * auto on left and right
      * auto will center the container
      */

  .callout-heading {
    font-size: 3em;
  }

  .subscribe-newsletter {
    height: 8em;
  }



  .wrapper {
    margin: 20px auto;
    position: relative;
  }

  /**
      * height is 400px - a design decision
      * multiple background images
      * background is the shorthand property
      * url() is the background-image property
      * no-repeat is the background-repeat property
      * 80px -10px is the background-position property (x, y)
      * / 200px 200px is the background-size property (width, height)
      */
  /* prettier-ignore */
  header {
    height: 400px;
    background:
      url(images/amazed.webp) no-repeat top left / 250px 250px,
      url(images/ace.webp) no-repeat center center / cover,
      linear-gradient(to bottom,
        hsl(0, 100%, 48%),
        hsl(0, 100%, 44%)) #000;
    position: relative;
  }

  header::after {

    content: " ";
    float: right;
    background: url(images/arrow-rotate2.webp) no-repeat top left / 400px 400px;
    width: 400px;
    height: 400px;
    position: absolute;
    right: -95px;
    top: -70px;
  }

  /**
      * font-size is 2.75 * inherited font-size (16px)
      * height is 2 * font-size (2.75 * 16 = 44)
      * flex item flowing in row direction (left to right the main axis)
      * align-self is flex-end (bottom of flex container the cross axis)
      * remove border-radius from top of header
      */
  header h1 {
    font-size: 2.75em;
    line-height: 2;
    align-self: flex-end;
    border-top-left-radius: 0px;
    border-top-right-radius: 0px;
  }

  .nav-main {
    position: static;
    top: auto;
    left: auto;
    z-index: auto;
  }

  .nav-main-menu-toggle {
    display: none;
  }

  #nav-main-menu {
    position: relative;
    visibility: visible;
    transform: translateX(0);
    transition: none;
    background: transparent;
    display: flex;
    flex-direction: row;
    width: auto;
  }

  /**
      * override the width of the image (auto is the intrinsic width)
      * float the image to the right
      * set margin opposite the float direction
      */
  img {
    width: 250px;
    height: 250px;
    float: right;
    margin: 0 0 50px 5px;
  }
}