/* Reset browser defaults */
html, body {
    margin: 0em 0.25em;
    height: 100%;
    box-sizing: border-box;
}

.navbar a {
  position: relative;
  display: inline-block;
  line-height: 44px;
  text-decoration: none;
  color: #0070f3;
  transition: color 0.2s;
}

.navbar a::before {
  content: "";
  position: absolute;
  top: -8px;
  bottom: -8px;
  left: -8px;
  right: -8px;
}

.navbar a:hover {
  color: #0051a8;
}

.navbar a:focus {
  color: #0051a8;
  outline: 2px solid #0051a8;
  outline-offset: 2px;
}

a {
  text-decoration: none;
  color: #0070f3;
  transition: color 0.2s;
}

a:hover,
a:focus {
  color: #0051a8;
  text-decoration: underline;
}

a.play {
  display: flex;
  margin-left: 0em;      /* space after sentence */
  margin-bottom: 1em;
  padding: 0.25em 0.5em;
  border: 1px solid #666;
  border-radius: 0.5em;
  font-size: 0.8em;
  text-transform: uppercase;
  line-height: 1.4;
  color: #333;
  text-decoration: none;
  width: 72px;
  height: 24px;
  align-items: center;
  justify-content: center;
}

a.play:hover {
  background: #333;
  color: #fff;
}


/* Body layout */
body {
    font-family: sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 2em 2em;        /* spacing inside page edges */
}

/* Allow main to grow for sticky footer */
main {
    flex: 1;                 /* keeps footer behaviour */
    max-width: 1000px;       /* prevents over-wide layout */
}

/* Vertical spacing (i.e. vertical rhythm) */
h1 {
  margin: 0 0 0 0;
  line-height: 1.2;
}

h2 { margin: 2em 0 0.5em 0; }
h3 { margin: 1.5em 0 0.5em 0; }

p  {
  margin: 0 0 1em 0;
  line-height: 1.2;
 }

main h2 {
  margin-top: 1em;
  margin-botom: 0.5em;
}

/* Images responsive */
img {
    display: block;
    max-width: 100%;
    height: auto;
}

/* Responsive video */
.video-wrapper {
    max-width: 80%;
    overflow: hidden;
    padding: 2em 0em;
}

.video-wrapper video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 0.75em;
}

h1 .subtitle {
  display: block;             /* forces subtitle on its own line */
  font-size: 0.5em;           /* smaller than main heading */
  font-weight: normal;        /* lighter than h1 */
  color: #555;                /* optional color */
  margin-top: 0.1em 0 0 0;          /* spacing below main title */
}

.game-entry {
  display: flex;
  gap: 1em;                   /* space between columns */
  align-items: flex-start;
}

.column {
  flex: 1;                    /* equal width columns */
}

/* ratio presets for columns */
.col-1-3 { flex: 1; }
.col-2-3 { flex: 2; }
.col-1-4 { flex: 1; }
.col-3-4 { flex: 3; }

h2 .subtitle {
  display: block;
  font-size: 0.75em;
  font-weight: normal;
  color: #555;
  margin-top: 0.2em;
}

h3 .subtitle {
  display: block;
  font-size: 0.75em;
  font-weight: normal;
  font-style: italic;
  color: #555;
  margin-top: 0.2em;
}

h4 .subtitle {
  display: block;
  font-size: 1em;
  font-weight: normal;
  font-style: italic;
  color: #555;
  margin-top: -1em;
}

h4 .author {
  display: block;
  font-size: 1em;
  font-weight: bold;
  color: #666;
  margin-top: -0.5em;
  margin-bottom: -1em;
}

/* Change indentation for lists */
ul, ol {
  padding-inline-start: 1.5em;
  line-height: 1.4;
}

p.poem {
  margin: 0 0 1.5em 0;
  padding-left: 0.5em;
  text-indent: -0.5em;
}

p.note {
  font-size: 0.8em;
  font-weight: normal;
  color: #555;
  font-style: italic;
}

/* mobile-specfic features, mobile friendly */
@media (max-width: 768px) {
  .game-entry {
    flex-direction: column;
  }
} 

/* Timeline, initially for Research Log */
.timeline {
  font-size: 0.85em;
  color: #666;
  display: block;
  position: relative;
  margin-top: 2em;
  margin-bottom: 0.25em;
  padding-left: 3em;           /* space for line + dots */
  border-left: 2px solid #ccc; /* vertical line */
}

.timeline h3 {
  margin: 0.25em 0 0.4em 0;
}

.timeline p {
  margin: 0;
  max-width: 65ch;
}

.timeline-item {
  position: relative;
  margin-bottom: 2em;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -3em;                  /* aligns with line */
  top: 0.5em;
  width: 2em;
  height: 2px;
  background: #ccc;
}

.timeline-item::after {
  content: "";
  position: absolute;
  left: -1.1em;
  top: 0.3em;
  width: 0.6em;
  height: 0.6em;
  background: #666;
  border-radius: 50%;
}

.timeline-date {
  display: block;
  margin-bottom: 0.3em;
  position: relative;
}

/* Tags and keywords */
.tags {
  display: flex;
  flex-wrap: wrap;             /* allows multiple lines of tags */
  gap: 0.5em;                  /* spacing between tags */
  margin-top: 0.5em;           /* space above tags */ 
  margin-bottom: 0.5em;
}

.tag {
  display: inline-block;
  padding: 0.25em 0.6em;       /* vertical and horizontal padding */
  border: 1px solid #666;      /* thin outline; adjust colour */
  border-radius: 0.5em;        /* mild rounding */
  font-size: 0.8em;            /* smaller than body text */
  text-transform: uppercase;   /* small caps effect */
  color: #333;                 /* text color */
  background: transparent;     /* keeps it minimal */
  line-height: 1.2;
  white-space: nowrap;         /* prevents breaking inside tag */
}

.project-entry {
  margin-bottom: 0em;      /* spacing between projects */
  margin-top: 2em;
}

.project-entry .title {
  margin: 0;
  font-size: 1.25em;
}

.project-entry .subtitle {
  display: block;
  font-size: 0.8em;
  font-style: italic;
  color: #555;
  margin-top: 0.2em;
}

.project-entry .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  margin: 0.5em 0;         /* vertical spacing between subtitle and byline */
}

.project-entry .tag {
  display: inline-block;
  padding: 0.25em 0.6em;
  border: 1px solid #666;
  border-radius: 0.5em;
  font-size: 0.8em;
  text-transform: uppercase;
  color: #333;
  background: transparent;
  line-height: 1.2;
  white-space: nowrap;
}

.project-entry .byline {
  font-size: 1em;
  color: #000;
  margin: 0;
  font-style: italic;
}

.project-entry .body {
  font-size: 1em;
  margin-top: 1em;
  margin-bottom: 0em;
}