:root {
  --deep: #05506e;
  --sea: #0a86a8;
  --cyan: #22bfd8;
  --foam: #d2f5fb;
  --butter: #fff0aa;
  --lime: #b6f23a;
  --silver: #d9dde6;
  --silver-hi: #ffffff;
  --silver-lo: #8a91a3;
  --ink: #111827;
  --paper: #ffffff;
  --link: #05506e;
  --visited: #6b1fa8;
  font-family: Verdana, Tahoma, "Segoe UI", Geneva, sans-serif;
  font-size: 13px;
  color: var(--ink);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--cyan);
  background-image:
    radial-gradient(circle at 25% 25%, rgba(255,255,255,.55) 0 1.5px, transparent 2px),
    radial-gradient(circle at 75% 70%, rgba(255,255,255,.4) 0 1px, transparent 1.5px),
    linear-gradient(180deg, var(--cyan) 0%, var(--foam) 100%);
  background-size: 28px 28px, 41px 41px, 100% 100%;
  background-attachment: fixed;
  line-height: 1.45;
}

a { color: var(--link); }
a:visited { color: var(--visited); }
a:hover {
  color: var(--deep);
  text-decoration-thickness: 3px;
  text-decoration-color: var(--cyan);
}

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--paper);
  padding: 6px 10px;
  z-index: 10;
}
.skip:focus { left: 8px; }

.page {
  max-width: 980px;
  margin: 16px auto;
  padding: 0 16px;
}

/* masthead */
.masthead {
  background: linear-gradient(180deg, #ffffff 0%, var(--foam) 100%);
  border: 2px solid;
  border-color: var(--silver-hi) var(--silver-lo) var(--silver-lo) var(--silver-hi);
  outline: 1px solid #5a6278;
  padding: 14px 16px 12px;
}

.logo-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}

.logo {
  margin: 0;
  font-family: "Arial Black", "Trebuchet MS", Impact, sans-serif;
  font-size: clamp(32px, 7vw, 52px);
  letter-spacing: -1px;
  line-height: 1;
}
.logo a, .logo a:visited {
  text-decoration: none;
  background: linear-gradient(180deg, var(--sea) 0%, var(--foam) 45%, var(--deep) 50%, var(--cyan) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  -webkit-text-stroke: 1px #05506e;
}
.logo .dot { color: var(--butter); -webkit-text-fill-color: var(--butter); }
.spark {
  -webkit-text-fill-color: var(--cyan);
  -webkit-text-stroke: 0;
  font-size: .5em;
  vertical-align: super;
  display: inline-block;
  animation: twinkle 1.6s ease-in-out infinite;
}
.spark.s2 { -webkit-text-fill-color: var(--sea); animation-delay: .8s; }

@keyframes twinkle {
  0%, 100% { opacity: 1; transform: scale(1) rotate(0); }
  50% { opacity: .3; transform: scale(.6) rotate(45deg); }
}

.tagline {
  margin: 0;
  font-family: "Trebuchet MS", Verdana, sans-serif;
  font-style: italic;
  color: var(--deep);
}

.new {
  display: inline-block;
  font-style: normal;
  font-weight: bold;
  font-size: 10px;
  text-transform: uppercase;
  color: var(--deep);
  background: var(--butter);
  padding: 1px 5px;
  border-radius: 8px;
  animation: blink 1.2s steps(2, start) infinite;
}
@keyframes blink { to { visibility: hidden; } }

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 14px 0 10px;
  border-bottom: 3px solid var(--deep);
}
.tab, .tab:visited {
  font-weight: bold;
  font-size: 12px;
  color: var(--deep);
  text-decoration: none;
  padding: 5px 12px 4px;
  background: linear-gradient(180deg, #ffffff, var(--foam));
  border: 1px solid var(--sea);
  border-bottom: 0;
  border-radius: 6px 6px 0 0;
}
.tab:hover { background: var(--butter); color: var(--deep); }
.tab.on { background: var(--deep); color: #fff; }

.search label {
  display: block;
  font-weight: bold;
  font-size: 12px;
  margin-bottom: 4px;
}
.search-row { display: flex; gap: 6px; max-width: 520px; }
.search input {
  flex: 1;
  min-width: 0;
  font: inherit;
  padding: 4px 6px;
  border: 2px inset #b9c0cf;
  background: #fff;
}

.btn, .btn:visited {
  display: inline-block;
  font: bold 12px Tahoma, Verdana, sans-serif;
  color: var(--ink);
  text-decoration: none;
  padding: 4px 12px;
  background: linear-gradient(180deg, #ffffff, var(--silver));
  border: 2px solid;
  border-color: var(--silver-hi) var(--silver-lo) var(--silver-lo) var(--silver-hi);
  outline: 1px solid #4a5163;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { background: linear-gradient(180deg, #ffffff, var(--butter)); color: var(--ink); }
.btn:active { border-color: var(--silver-lo) var(--silver-hi) var(--silver-hi) var(--silver-lo); }

:focus-visible { outline: 3px dashed var(--sea) !important; outline-offset: 2px; }

/* ticker */
.ticker {
  display: flex;
  align-items: stretch;
  margin: 10px 0;
  background: #000;
  color: var(--lime);
  font: bold 12px "Courier New", monospace;
  border: 2px solid #333;
  overflow: hidden;
}
.ticker-label {
  flex: none;
  background: var(--butter);
  color: var(--deep);
  padding: 5px 10px;
  text-transform: uppercase;
  font-family: Tahoma, Verdana, sans-serif;
}
.ticker-track {
  display: flex;
  overflow: hidden;
  white-space: nowrap;
  padding: 5px 0;
}
.ticker-items {
  display: flex;
  flex: none;
  margin: 0;
  padding: 0;
  list-style: none;
  animation: scroll 38s linear infinite;
}
.ticker:hover .ticker-items { animation-play-state: paused; }
.ticker-items li { padding: 0 28px; }
.ticker-items li::before { content: "\2605  "; color: var(--butter); }
.ticker-items b { color: #fff; }
@keyframes scroll { to { transform: translateX(-100%); } }

/* three columns */
.layout {
  display: grid;
  grid-template-columns: 190px 1fr 210px;
  gap: 10px;
  align-items: start;
}
.col { display: grid; grid-template-columns: minmax(0, 1fr); gap: 10px; min-width: 0; }

.box {
  background: var(--paper);
  border: 1px solid var(--deep);
  box-shadow: 3px 3px 0 rgba(5, 80, 110, .35);
}
.box > :not(.bar):not(.sites) { margin-left: 10px; margin-right: 10px; }

.bar {
  margin: 0 0 8px;
  padding: 4px 8px;
  font: bold 12px Tahoma, Verdana, sans-serif;
  color: #fff;
  text-shadow: 1px 1px 0 rgba(0, 0, 0, .35);
  background: linear-gradient(90deg, var(--deep), var(--sea) 70%, var(--cyan));
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px;
}
.bar-note {
  font-weight: normal;
  font-size: 11px;
  background: var(--deep);
  color: #fff;
  text-shadow: none;
  padding: 1px 8px;
  border-radius: 9px;
  white-space: nowrap;
}

.small { font-size: 11px; color: #4b5568; }
.center { text-align: center; }

/* channels */
.channels { list-style: none; padding: 0; margin: 0 0 10px; }
.channels button {
  all: unset;
  display: block;
  width: 100%;
  cursor: pointer;
  padding: 3px 4px 3px 16px;
  color: var(--link);
  text-decoration: underline;
  position: relative;
}
.channels button::before {
  content: "\25B8";
  position: absolute;
  left: 4px;
  color: var(--sea);
  text-decoration: none;
}
.channels button:hover { background: var(--butter); }
.channels button.on { font-weight: bold; color: var(--ink); text-decoration: none; background: var(--foam); }
.count { color: #6b7280; font-weight: normal; }

.clock {
  margin: 6px 10px 2px;
  font: bold 20px "Courier New", monospace;
  text-align: center;
  color: var(--lime);
  background: #10210a;
  border: 2px inset #6a7a5a;
  padding: 4px 0;
  letter-spacing: 1px;
}

.counter {
  margin: 6px auto 4px !important;
  width: max-content;
  font: bold 18px "Courier New", monospace;
  color: #ff3b3b;
  background: #000;
  padding: 2px 6px;
  letter-spacing: 3px;
  border: 2px inset #777;
}

/* directory */
.sites { list-style: none; margin: 0; padding: 0 10px 4px; }
.site {
  display: grid;
  grid-template-columns: 88px 1fr auto;
  gap: 12px;
  align-items: start;
  padding: 10px 0;
  border-bottom: 1px dotted var(--cyan);
}
.site:last-child { border-bottom: 0; }
.site[hidden] { display: none; }
.site h3 { margin: 0; font-size: 15px; font-family: "Trebuchet MS", Verdana, sans-serif; }
.site p { margin: 2px 0; }
.addr { font: 11px "Courier New", monospace; color: #157a2e; }
.meta { font-size: 11px; color: #4b5568; }
.chip {
  display: inline-block;
  background: var(--butter);
  border: 1px solid var(--sea);
  padding: 0 5px;
  margin-right: 4px;
  font-size: 10px;
  color: var(--deep);
}
.visit { align-self: center; }

.empty { margin: 8px 10px 14px; }
.linkish {
  all: unset;
  color: var(--link);
  text-decoration: underline;
  cursor: pointer;
}

/* 88x31 buttons */
.b88, .b88:visited {
  display: block;
  padding-top: 4px;
  width: 88px;
  height: 31px;
  overflow: hidden;
  font: 9px/11px Verdana, Tahoma, sans-serif;
  text-align: center;
  text-decoration: none;
  border: 1px solid #000;
  box-shadow: inset 1px 1px 0 rgba(255,255,255,.6), inset -1px -1px 0 rgba(0,0,0,.35);
  white-space: nowrap;
}
.b88 b { font-size: 9px; }
.b-yellow { background: var(--butter); color: var(--deep); }
.b-lilac { background: linear-gradient(180deg, #e4cfff, #a56bff); color: #2a0a5c; }
.b-glitter {
  background:
    radial-gradient(circle at 20% 30%, #fff 0 1px, transparent 1.5px),
    radial-gradient(circle at 70% 60%, #fff 0 1px, transparent 1.5px),
    linear-gradient(135deg, var(--butter), var(--foam), var(--cyan));
  background-size: 9px 9px, 13px 13px, 100% 100%;
  color: var(--deep);
}
.b-quilt {
  background:
    conic-gradient(#f8d98c 0 25%, #a8d4e6 0 50%, #f8d98c 0 75%, #a8d4e6 0) 0 0 / 15px 15px;
  color: #2b3a12;
  text-shadow: 0 0 3px #fff, 0 0 3px #fff;
}
.b-ice { background: linear-gradient(180deg, #ffffff, #8fd6ff 60%, #2b7bd1); color: #062a54; }
.b-groove { background: repeating-linear-gradient(90deg, #111 0 6px, #2a2a2a 6px 12px); color: var(--lime); }
.b-a { background: var(--deep); color: #fff; }
.b-b { background: #fff; color: #000; }
.b-c { background: #c1ff6b; color: #133000; }
.b-d { background: #24292f; color: #fff; }
.b-e { background: var(--butter); color: var(--deep); }

/* webmaster */
.webmaster { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 10px; }
.webmaster img {
  image-rendering: pixelated;
  flex: none;
  background: var(--foam);
  border: 1px solid var(--cyan);
  padding: 4px 6px;
}
.webmaster p { margin: 0 0 6px; }

.construction { text-align: center; margin-bottom: 10px; }
.construction p { margin: 2px 0; }
.soon { list-style: none; margin: 4px 0 0; padding: 0; }
.soon li { padding: 6px 0; border-bottom: 1px dotted var(--cyan); }
.soon li:last-child { border-bottom: 0; }
.soon b, .soon .small { display: block; }
.cone { font-size: 26px; color: #f59e0b; margin: 0 !important; }
.stripes {
  height: 12px;
  margin: 6px 0 !important;
  background: repeating-linear-gradient(45deg, #111 0 10px, #ffd400 10px 20px);
  border: 1px solid #000;
}

.ring { display: flex; justify-content: center; gap: 4px; flex-wrap: wrap; margin-top: 6px; }
.ring .btn { padding: 3px 7px; font-size: 11px; }

/* footer */
.footer { margin: 14px 0 24px; }
.buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0 0 8px;
}
.footer .small { color: var(--deep); }

/* html for newbies */
.learn { grid-template-columns: 190px minmax(0, 1fr); }
.learn .left { position: sticky; top: 10px; }
.toc { margin: 0 0 10px; padding-left: 26px; }
.toc li { padding: 2px 0; }
.intro h1.bar { font-size: 14px; }
.lesson p, .intro p { margin-top: 0; margin-bottom: 10px; }
.lesson pre {
  margin: 0 10px 10px;
  padding: 8px 10px;
  overflow-x: auto;
  font: 12px/1.5 "Courier New", monospace;
  color: var(--lime);
  background: #10210a;
  border: 2px inset #6a7a5a;
}
code, kbd { font-family: "Courier New", monospace; }
p code { background: var(--foam); padding: 0 3px; }
kbd {
  padding: 0 4px;
  font-size: 11px;
  background: linear-gradient(180deg, #fff, var(--silver));
  border: 1px solid var(--silver-lo);
  border-radius: 3px;
}
.demo {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px;
  margin-bottom: 10px !important;
  background: repeating-conic-gradient(#f4f6fa 0 25%, #ffffff 0 50%) 0 0 / 16px 16px;
  border: 1px dashed var(--sea);
}
.demo-bar { margin: 0; flex: 1; }
.demo-logo { font-size: 40px; }
.demo-ticker { flex: 1; min-width: 0; margin: 0; }
.demo-doll { image-rendering: pixelated; }
.stars-demo {
  height: 90px;
  background:
    radial-gradient(circle at 25% 25%, rgba(255,255,255,.55) 0 1.5px, transparent 2px),
    radial-gradient(circle at 75% 70%, rgba(255,255,255,.4) 0 1px, transparent 1.5px),
    linear-gradient(180deg, var(--cyan), var(--foam));
  background-size: 28px 28px, 41px 41px, 100% 100%;
}
.sprite-demo .grid {
  margin: 0;
  padding: 6px 8px;
  font: 13px/1.1 "Courier New", monospace;
  color: var(--deep);
  background: #fff;
  border: 1px solid var(--silver-lo);
}
.sprite-demo .arrow { font-size: 22px; color: var(--sea); }
#sprite { image-rendering: pixelated; }

/* narrow screens */
@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr 1fr; }
  .learn { grid-template-columns: minmax(0, 1fr); }
  .learn .left { position: static; }
  .learn .mid { order: 0; }
  .mid { grid-column: 1 / -1; order: -1; }
}
@media (max-width: 560px) {
  .layout { grid-template-columns: 1fr; }
  .site { grid-template-columns: 1fr; gap: 6px; }
  .visit { justify-self: start; }
}

@media (prefers-reduced-motion: reduce) {
  .spark, .new { animation: none; }
  .ticker-items { animation: none; flex-wrap: wrap; }
  .ticker-track { white-space: normal; }
}

/* cursor picker */
.cursor-picks { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px; margin-top: 4px; }
.cursor-picks .btn { padding: 3px 7px; font-size: 11px; }
.cursor-picks .btn[aria-pressed="true"] {
  background: var(--deep);
  color: #fff;
  border-color: var(--silver-lo) var(--silver-hi) var(--silver-hi) var(--silver-lo);
}
@media (hover: none) { .cursor-box { display: none; } }

.trail {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 50;
  pointer-events: none;
  font-size: 14px;
  line-height: 1;
  animation: trail-fade .8s ease-out forwards;
}
@keyframes trail-fade {
  from { opacity: 1; transform: translate(var(--x), var(--y)) scale(1); }
  to { opacity: 0; transform: translate(var(--x), calc(var(--y) + 18px)) scale(.4); }
}