@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Space+Mono:ital,wght@0,400;0,700;1,400&family=Permanent+Marker&family=Inconsolata:wght@400;700;900&display=swap');

:root {
  --bg: #0e0e0e;
  --surface: #1a1a1a;
  --surface2: #222;
  --ink: #f0f0f0;
  --muted: #888;
  --red: #ff3b3b;
  --yellow: #ffe600;
  --green: #39ff14;
  --blue: #00b4ff;
  --purple: #bf5fff;
  --pink: #ff4ecd;
  --orange: #ff7300;
  --teal: #00e5cc;
  --border: #333;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Space Mono', monospace;
  line-height: 1.75;
  min-height: 100vh;
}

/* NAV */
.topnav {
  display: flex;
  align-items: center;
  gap: 0;
  border-bottom: 2px solid var(--border);
  background: #111;
  padding: 0 20px;
  overflow-x: auto;
  flex-wrap: nowrap;
  scrollbar-width: none;
}
.topnav::-webkit-scrollbar { display: none; }
.topnav a {
  color: var(--muted);
  text-decoration: none;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 14px;
  letter-spacing: 1.5px;
  padding: 14px 16px;
  white-space: nowrap;
  border-right: 1px solid var(--border);
  transition: color 0.15s, background 0.15s;
}
.topnav a:first-child { border-left: 1px solid var(--border); }
.topnav a:hover, .topnav a.active {
  color: var(--yellow);
  background: #1e1e1e;
}
.topnav a.home { color: var(--pink); }

/* PAGE WRAPPER */
.page {
  max-width: 820px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* HEADINGS */
h1 {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 3px;
  line-height: 1;
}
h2 {
  font-family: 'Bebas Neue', sans-serif;
  letter-spacing: 2px;
  font-size: 24px;
  margin-bottom: 12px;
}
h3 {
  font-family: 'Space Mono', monospace;
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

/* CARDS */
.card {
  background: var(--surface);
  border: 2px solid var(--border);
  padding: 20px 24px;
  margin-bottom: 20px;
  font-size: 14px;
  line-height: 1.8;
}
.card.red    { border-left: 5px solid var(--red); }
.card.green  { border-left: 5px solid var(--green); }
.card.blue   { border-left: 5px solid var(--blue); }
.card.purple { border-left: 5px solid var(--purple); }
.card.yellow { border-left: 5px solid var(--yellow); }
.card.pink   { border-left: 5px solid var(--pink); }
.card.orange { border-left: 5px solid var(--orange); }
.card.teal   { border-left: 5px solid var(--teal); }

/* EQUATION */
.eq {
  background: var(--yellow);
  color: #000;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 36px;
  letter-spacing: 4px;
  text-align: center;
  padding: 18px 20px;
  margin: 22px 0;
  position: relative;
}
.eq-label {
  font-family: 'Space Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: absolute;
  top: 5px; left: 10px;
  color: #333;
}
.eq-note {
  font-family: 'Permanent Marker', cursive;
  font-size: 11px;
  position: absolute;
  bottom: 5px; right: 10px;
  color: #555;
}

/* STICKY */
.sticky {
  background: #fff9c4;
  color: #111;
  font-family: 'Permanent Marker', cursive;
  font-size: 13.5px;
  padding: 14px 18px;
  margin: 18px 0;
  line-height: 1.75;
  transform: rotate(-1.2deg);
  box-shadow: 3px 3px 0 rgba(0,0,0,.3);
  display: block;
}
.sticky.pink   { background: #ffc8dd; transform: rotate(1.4deg); }
.sticky.blue   { background: #caf0f8; transform: rotate(-0.5deg); }
.sticky.green  { background: #b7e4c7; transform: rotate(1.8deg); }
.sticky.purple { background: #e0c3fc; transform: rotate(-1deg); }

/* TERMINAL / LORE BOX */
.terminal {
  background: #0d0d0d;
  color: var(--green);
  font-family: 'Inconsolata', monospace;
  font-size: 13px;
  padding: 18px 22px;
  margin: 20px 0;
  border: 1px solid #39ff1455;
  line-height: 1.9;
}
.terminal::before {
  content: '▶ SYSTEM OUTPUT';
  display: block;
  color: var(--yellow);
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 2px;
  font-size: 11px;
}

/* BANNER */
.banner {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 18px;
  letter-spacing: 2px;
  text-align: center;
  padding: 12px;
  margin: 20px 0;
  border: 2px solid;
}
.banner.red    { background: #ff3b3b22; border-color: var(--red);    color: var(--red); }
.banner.green  { background: #39ff1422; border-color: var(--green);  color: var(--green); }
.banner.yellow { background: #ffe60022; border-color: var(--yellow); color: var(--yellow); }
.banner.purple { background: #bf5fff22; border-color: var(--purple); color: var(--purple); }
.banner.pink   { background: #ff4ecd22; border-color: var(--pink);   color: var(--pink); }

/* TABLE */
table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 13px; }
th { background: #1e1e1e; color: var(--yellow); font-family: 'Bebas Neue', sans-serif; font-size: 15px; letter-spacing: 1.5px; padding: 10px 14px; text-align: left; border: 1px solid var(--border); }
td { padding: 10px 14px; border: 1px solid var(--border); vertical-align: top; line-height: 1.6; color: var(--ink); }
tr:nth-child(even) td { background: var(--surface2); }

/* STEPS LIST */
.steps { list-style: none; padding: 0; counter-reset: step; }
.steps li {
  counter-increment: step;
  padding: 12px 16px 12px 52px;
  margin-bottom: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  position: relative;
  font-size: 14px;
  line-height: 1.65;
}
.steps li::before {
  content: counter(step);
  position: absolute;
  left: 14px; top: 50%; transform: translateY(-50%);
  background: var(--yellow);
  color: #000;
  width: 26px; height: 26px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 16px;
}

/* PAGE FOOTER NAV */
.page-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 48px;
  border-top: 2px solid var(--border);
  padding-top: 20px;
  gap: 12px;
}
.page-footer a {
  color: var(--yellow);
  text-decoration: none;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 16px;
  letter-spacing: 2px;
  padding: 10px 18px;
  border: 2px solid var(--yellow);
  transition: background 0.15s, color 0.15s;
}
.page-footer a:hover { background: var(--yellow); color: #000; }

mark { background: var(--yellow); color: #000; padding: 1px 4px; }
mark.green  { background: var(--green); }
mark.pink   { background: var(--pink); color: white; }
mark.purple { background: var(--purple); color: white; }
mark.blue   { background: var(--blue); color: #000; }

.crossed  { text-decoration: line-through; opacity: .4; }
.inserted { color: var(--pink); font-style: italic; }
strong { color: var(--yellow); }

hr { border: none; border-top: 1px solid var(--border); margin: 30px 0; }

.roast {
  font-family: 'Permanent Marker', cursive;
  font-size: 12px;
  color: var(--muted);
  font-style: italic;
  display: block;
  margin-top: 6px;
}