/* Home page look. Same paper, grid lines, ink and red as the lessons. Phone first. */
:root { --paper: #f7f3ea; --ink: #1d1b17; --soft: #6b655a; --red: #c8402a; --line: #e4ddcd; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font-family: -apple-system, "Inter", system-ui, sans-serif;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 22px 22px;
}
.wrap { max-width: 430px; margin: 0 auto; padding: 26px 18px 60px; }
.path { font-family: ui-monospace, Menlo, monospace; font-size: 12px; color: var(--soft); margin-bottom: 10px; }
.path a { color: var(--red); text-decoration: none; display: inline-block; padding: 8px 0; }
h1 { font-family: Georgia, serif; font-weight: 400; font-size: 32px; line-height: 1.1; margin: 4px 0 6px; }
h1 i { color: var(--red); }
.sub { color: var(--soft); font-size: 14px; margin: 0 0 18px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.fold {
  position: relative; display: block; color: var(--ink); text-decoration: none; min-width: 0;
  background: #fff; border: 1.5px solid var(--ink); border-radius: 4px 12px 12px 12px;
  padding: 14px 12px 12px; margin-top: 10px; min-height: 88px;
}
.fold::before {
  content: ""; position: absolute; top: -10px; left: -1.5px; width: 46%; height: 10px;
  background: #fff; border: 1.5px solid var(--ink); border-bottom: none; border-radius: 8px 8px 0 0;
}
.fold .n { font-family: ui-monospace, Menlo, monospace; font-size: 11px; color: var(--red); }
.fold h3 { font-family: Georgia, serif; font-weight: 400; font-size: 17px; line-height: 1.15; margin: 3px 0 8px; overflow-wrap: anywhere; }
.fold .c { font-size: 11px; color: var(--soft); }
.fold.new { border-color: var(--red); }
.fold.new::before { border-color: var(--red); }

.big { background: #fff; border: 1.5px solid var(--ink); border-radius: 12px; padding: 13px; font-size: 15px; line-height: 1.4; font-weight: 600; margin: 12px 0; }
.big small { display: block; color: var(--red); font-size: 11px; letter-spacing: .05em; margin-bottom: 4px; }
.prob { border-left: 3px solid var(--red); padding: 3px 0 3px 12px; font-size: 14px; color: var(--soft); margin: 12px 0 18px; }
.prob b { display: block; color: var(--ink); }

.row {
  display: flex; align-items: center; gap: 12px; min-height: 48px;
  background: #fff; border: 1.5px solid var(--line); border-radius: 10px;
  padding: 11px 12px; margin: 8px 0; font-size: 14px; line-height: 1.3;
  color: var(--ink); text-decoration: none;
}
.row.dir, .row.ready { border-color: var(--ink); }
.row.soon { color: var(--soft); background: transparent; }
.ico { flex: none; width: 22px; text-align: center; font-size: 16px; }
.row .c { margin-left: auto; font-size: 11px; color: var(--soft); white-space: nowrap; }
.row .done { color: #2f7a4a; }
.tag { display: inline-block; background: var(--ink); color: var(--paper); font-size: 9px; font-weight: 700; padding: 2px 5px; border-radius: 4px; margin-left: 6px; vertical-align: 2px; }
.tag-new { background: var(--red); margin: 0 0 6px; }
.src { margin-top: 22px; font-size: 12px; color: var(--soft); }
.src a { display: flex; align-items: center; color: var(--ink); min-height: 44px; }
.lbl { font-size: 11px; font-weight: 700; letter-spacing: .06em; color: var(--soft); margin: 18px 0 4px; }
.ready-strip { margin: 0 0 22px; }

/* Laptop */
@media (min-width: 1000px) {
  .wrap { max-width: 1100px; padding-top: 44px; }
  .wrap.narrow { max-width: 720px; }
  .grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
  h1 { font-size: 44px; }
}