:root {
  --bg: #1a1a1e;
  --paper: #212127;
  --line: #2e2e37;
  --ink: #d7d7cf;
  --ink-dim: #8f8f88;
  --accent: #f2c14e;      /* highlighter yellow */
  --accent-soft: rgba(242, 193, 78, 0.14);
  --margin: #e06c5a;      /* red margin rule */
  --mono: "SFMono-Regular", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 50% -10%, #26262d 0%, var(--bg) 60%);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.7;
  display: flex;
  justify-content: center;
  padding: clamp(1.5rem, 5vw, 5rem) 1rem;
}

.notepad {
  position: relative;
  width: 100%;
  max-width: 720px;
  background: var(--paper);
  /* horizontal ruled lines */
  background-image: repeating-linear-gradient(
    var(--paper),
    var(--paper) 2.6rem,
    var(--line) 2.6rem,
    var(--line) calc(2.6rem + 1px)
  );
  background-position: 0 1rem;
  border-radius: 6px;
  padding: 2.4rem clamp(1.5rem, 5vw, 3rem) 2.4rem clamp(2.8rem, 8vw, 4rem);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.03) inset,
    0 30px 60px -20px rgba(0, 0, 0, 0.7);
}

/* red left margin rule */
.notepad::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: clamp(1.9rem, 6vw, 2.8rem);
  width: 1px;
  background: var(--margin);
  opacity: 0.55;
}

/* bit of tape at the top */
.tape {
  position: absolute;
  top: -0.9rem;
  left: 50%;
  transform: translateX(-50%) rotate(-1.5deg);
  width: 120px;
  height: 1.8rem;
  background: var(--accent-soft);
  border: 1px dashed rgba(242, 193, 78, 0.4);
  border-radius: 2px;
}

.masthead { margin-bottom: 2.6rem; }

h1 {
  font-size: clamp(2rem, 7vw, 3rem);
  line-height: 1.2;
  margin: 0 0 0.4rem;
  letter-spacing: -0.5px;
  color: #fff;
}

.tagline {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

.block { margin-bottom: 2.6rem; }

h2 {
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: lowercase;
  color: var(--accent);
  margin: 0 0 0.8rem;
  font-weight: 600;
}

p { margin: 0 0 0.9rem; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.tool-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.tool {
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 1.1rem 1.3rem;
  background: rgba(255, 255, 255, 0.015);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.tool:hover {
  border-color: rgba(242, 193, 78, 0.5);
  background: var(--accent-soft);
}

.tool-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #fff;
  font-size: 1.25rem;
  text-decoration: none;
}
.tool-link:hover { text-decoration: none; }

.tool-name::before {
  content: "$ ";
  color: var(--accent);
}

.tool-arrow {
  color: var(--ink-dim);
  transition: transform 0.15s ease, color 0.15s ease;
}
.tool:hover .tool-arrow {
  color: var(--accent);
  transform: translateX(4px);
}

.tool-desc {
  margin: 0.5rem 0 0.4rem;
  color: var(--ink);
}

.tool-links {
  display: flex;
  gap: 1.2rem;
  font-size: 0.8rem;
}
.tool-links a {
  color: var(--ink-dim);
}
.tool-links a::before {
  content: "› ";
  color: var(--accent);
}
.tool-links a:hover {
  color: var(--accent);
}

.colophon {
  margin-top: 3rem;
  padding-top: 1.2rem;
  border-top: 1px dashed var(--line);
  color: var(--ink-dim);
  font-size: 0.85rem;
}
.colophon p { margin: 0.2rem 0; }
.scribble { opacity: 0.6; font-style: italic; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}