/* DEVELOPMENT styles. */

.w { border: 2px solid white; }
.b { border: 2px solid black; }
.s { border: 2px solid silver; }
.r { border: 2px solid red; }
.o { border: 2px solid orange; }
.y { border: 2px solid yellow; }
.g { border: 2px solid green; }
.t { border: 2px solid blue; }
.i { border: 2px solid indigo; }
.v { border: 2px solid violet; }
.p { border: 2px solid pink; }

.w, .b, .s, .r, .o, .y, .g, .t, .i, .v, .p {
    border-width: 0px;
}



/* Reveal layout customizations. */

.reveal .slides > section,
.reveal .slides > section > section,
.reveal h1, .reveal h2, .reveal h3, .reveal h4, .reveal h5, .reveal h6 {
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
} 

.reveal h3 {
    font-size: 2rem;
}

.reveal .slides > section,
.reveal .slides > section > section {
    font-size: 1.2rem;
    text-align: left;
}

.reveal .slide-number {
    border-radius: .3rem;
}

.reveal .slide-number > a {
    color: white;
}

.reveal .slides img {
    display: block;
    margin: 0 auto;
    border: 0;
    padding: .5rem;
    border-radius: .5rem;
    background-color: transparent;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}



/* Targeting multiple slides. */

.canvas {
    margin: 0 auto;
    padding: 2rem;
    border-radius: .5rem;
}

.canvas > .title {
    display: inline-block;
    margin-left: -51px;
    width: auto;
    min-width: 30%;
    color: white;
    line-height: inherit;
}

.canvas .content ul li:not(:last-of-type),
.canvas .content ol li:not(:last-of-type) {
    margin-bottom: 1.5rem;
}

.canvas code:not(.hljs) {
    font-family: 'Courier New', Courier, monospace;
    font-weight: bold;
    color: #C1625F;
}

code.highlight {
    font-style: normal;
    color: white;
}

hr {
    display: block;
    margin: 1.5rem auto;
    border: 0;
    height: 1px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    background-color: transparent;
}



/* Utilities. */

.text-left {
    text-align: left;
}

.text-center {
    text-align: center;
}

.shadow-md {
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);
}

.shadow-sm {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
}

.highlight {
    display: inline-block;
    line-height: 2rem;
    padding: .5rem;
    font-style: italic;
    color: white;
    background-color: #C1625F;
    border-radius: 1rem;
}

.hr-stretch {
    margin-left: -2rem;
    margin-right: -2rem;
}

.img-zoom {
    transform-origin: var(--origin);
    transition: transform 0.25s ease;
    background-color: white !important;
    cursor: zoom-in;
    user-select: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none;
}

.img-zoom:active {
    transform: scale(var(--factor));
    cursor: pointer;
}


/* Agnostics */

/* 
 * Post-it pin and positions.
 * Credits: https://codepen.io/joshnh/pen/shHbJ
 */
.pin {
    background: #aaa linear-gradient(to left, hsla(0, 0%, 100%, .2), hsla(0, 0%, 0%, .2));
    display: block;
    height: 2rem;
    margin: -1rem -.05rem;
    position: absolute;
    width: .1rem;
}

.pin::before {
    background-color: hsla(0,0%,0%,.1);
    box-shadow: 0 0 .25rem hsla(0,0%,0%,.1);
    content: '';
    height: 1.5rem;
    left: 0;
    position: absolute;
    top: .3rem;
    transform: rotate(57.5deg);
    transform-origin: 50% 100%;
    width: .1rem;
}

.pin::after {
    background: #ffc107 radial-gradient(circle at 25% 25%, hsla(0, 0%, 100%, .2), hsla(0, 0%, 0%, .2));
    border-radius: 50%;
    box-shadow: inset 0 0 0 1px hsla(0,0%,0%,.1),
                inset .2rem .2rem .2rem hsla(0,0%,100%,.2),
                inset -.2rem -.2rem .2rem hsla(0,0%,0%,.2),
                1.5rem 1.25rem .25rem hsla(0,0%,0%,.15);
    content: '';
    height: .8rem;
    left: -.35rem;
    position: absolute;
    top: -.65rem;
    width: .8rem;
}

.pin-top-left {
    top: 2rem;
    left: 1rem;
    transform: rotate(-10deg);
}

.pin-top-right {
    top: 2rem;
    right: 1rem;
    transform: rotate(10deg);
}

.pin-bottom-left {
    bottom: 2rem;
    left: 1rem;
    transform: rotate(-160deg);
}

.pin-bottom-right {
    bottom: 2rem;
    right: 1rem;
    transform: rotate(160deg);
}



/* 
 * Ribbon and positioning.
 * Credits: https://codepen.io/ajimix/pen/sDret
 */
.ribbon {
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.25), 0 10px 10px rgba(0, 0, 0, 0.22);    
    position: relative;
    padding: .2rem 1rem;
    font-size: 1.3rem;
    color: #fff;
    background: steelblue;
    border-radius: 0 .3rem .3rem 0;
}

.ribbon::before {
    content: '';
    position: absolute;
    height: 0;
    width: 0;
    top: 100%;
    border-top: 6px solid steelblue;
    z-index: -1;
}

.ribbon-right.ribbon::before {
    right: 0;
    border-right: 28px solid transparent;
}

.ribbon-left.ribbon::before {
    left: 0;
    border-left: 28px solid transparent;
}



/*
 * Slow rotation animation.
 */

 @keyframes slow-rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.slow-rotate {
    animation: slow-rotate 180s linear infinite;
}