@import url("https://fonts.googleapis.com/css2?family=Anton&family=Outfit:wght@400;600;700&display=swap");

:root {
  --paper: #f6e7a1;
  --card: #fff8e4;
  --ink: #141414;
  --red: #e10600;
  --lime: #c6f135;
  --yellow: #ffe500;
  --muted: #3a3428;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Outfit, "Segoe UI", sans-serif;
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(20, 20, 20, 0.16) 0.7px, transparent 0.7px);
  background-size: 5px 5px;
}

body::before {
  content: "STUDY POSTER";
  display: block;
  background: var(--red);
  color: var(--card);
  font-family: Anton, sans-serif;
  letter-spacing: 0.18em;
  text-align: center;
  padding: 8px 12px 6px;
  font-size: 0.95rem;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 18px 72px;
}

h1 {
  font-family: Anton, sans-serif;
  font-weight: 400;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  line-height: 0.92;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--red);
  margin: 10px 0 12px;
}

body:has(.dir) h1 {
  font-size: clamp(4.4rem, 18vw, 7.6rem);
}

.sub {
  color: var(--ink);
  margin: 0 0 22px;
  max-width: 38rem;
  font-size: 1rem;
  line-height: 1.45;
}

.dir { display: grid; gap: 16px; }

a.mod {
  display: block;
  background: var(--lime);
  color: var(--ink);
  text-decoration: none;
  border: 3px solid var(--ink);
  border-radius: 0;
  box-shadow: 6px 6px 0 var(--ink);
  padding: 16px 18px 18px;
}

a.mod:nth-child(even) { background: var(--yellow); }
a.mod:nth-child(3) { background: var(--card); }
a.mod:hover { transform: translate(-2px, -2px); box-shadow: 8px 8px 0 var(--ink); }
a.mod .n {
  display: inline-block;
  background: var(--red);
  color: var(--card);
  font-family: Anton, sans-serif;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  padding: 2px 8px 0;
}
a.mod h2 {
  margin: 10px 0 6px;
  font-family: Anton, sans-serif;
  font-weight: 400;
  font-size: 1.8rem;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
a.mod p { margin: 0; color: var(--ink); font-size: 0.98rem; line-height: 1.4; }

a.exit,
a[href="../index.html"],
a[href="index.html"].exit {
  display: inline-block;
  margin: 0 0 14px;
  color: var(--ink);
  text-decoration: none;
  background: var(--card);
  border: 3px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  padding: 6px 10px;
  border-radius: 0;
  font-size: 0.85rem;
  font-weight: 700;
}

.bar {
  height: 12px;
  background: var(--ink);
  border-radius: 0;
  overflow: hidden;
  margin-bottom: 14px;
  border: 0;
}
.bar > i {
  display: block;
  height: 100%;
  background: var(--red);
}

.meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--ink);
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 14px;
}

.card {
  background: var(--card);
  border: 3px solid var(--ink);
  border-radius: 0;
  box-shadow: 8px 8px 0 var(--red);
  padding: 18px;
}

.q {
  font-size: 1.12rem;
  line-height: 1.4;
  margin: 0 0 14px;
  color: var(--ink);
}

.hint { color: var(--muted); font-size: 0.88rem; margin: -6px 0 12px; }

.opt {
  display: flex;
  width: 100%;
  text-align: left;
  background: #fffdf6;
  border: 3px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  color: var(--ink);
  border-radius: 0;
  padding: 12px;
  margin: 0 0 10px;
  cursor: pointer;
  font: 600 1rem/1.35 Outfit, sans-serif;
}
.opt:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink); }
.opt.sel { background: var(--yellow); }
.opt.ok { background: var(--lime); }
.opt.no { background: #ff5a45; }
.opt:disabled { cursor: default; }

.match { display: grid; gap: 10px; }
.row {
  display: grid;
  grid-template-columns: 1fr minmax(140px, 190px);
  gap: 10px;
  align-items: center;
}
.row span { font-size: 0.98rem; }

select,
input.blank {
  width: 100%;
  background: #fffdf6;
  color: var(--ink);
  border: 3px solid var(--ink);
  border-radius: 0;
  padding: 8px;
  font: 600 0.95rem Outfit, sans-serif;
}
select.ok,
input.blank.ok { background: var(--lime); }
select.no,
input.blank.no { background: #ff5a45; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

button.btn,
a.btn {
  border: 3px solid var(--ink);
  border-radius: 0;
  box-shadow: 4px 4px 0 var(--ink);
  padding: 10px 16px;
  font: 700 0.98rem Outfit, sans-serif;
  cursor: pointer;
  background: var(--lime);
  color: var(--ink);
  text-decoration: none;
  display: inline-block;
}
button.btn.ghost,
a.btn.ghost {
  background: var(--card);
  color: var(--ink);
}
button.btn:disabled { opacity: 0.45; cursor: default; box-shadow: none; }

.fb:empty { display: none; }
.fb {
  display: inline-block;
  margin-top: 14px;
  padding: 6px 10px;
  border: 3px solid var(--ink);
  font-weight: 700;
}
.fb.ok { background: var(--lime); color: var(--ink); }
.fb.no { background: #ff5a45; color: var(--ink); }

.why-h {
  font-family: Anton, sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  color: var(--red);
  margin: 14px 0 4px;
}
.why { margin: 0; padding-left: 18px; }
.why li { margin: 0 0 6px; font-size: 0.95rem; line-height: 1.4; color: var(--ink); }

.score {
  font-family: Anton, sans-serif;
  font-size: clamp(3rem, 12vw, 4.5rem);
  line-height: 0.9;
  color: var(--red);
  margin: 4px 0 8px;
}

.miss { margin-top: 16px; padding-left: 18px; }
.miss li { margin: 0 0 10px; color: var(--ink); font-size: 0.92rem; }
.miss b { color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 3px;
}

@media (max-width: 640px) {
  .row { grid-template-columns: 1fr; }
  .card { box-shadow: 5px 5px 0 var(--red); }
}

input.cmd {
  width: 100%;
  display: block;
  margin: 0;
  font: 700 1.02rem/1.4 Consolas, "Courier New", monospace;
  padding: 12px;
  border: 3px solid var(--ink);
  background: #fffdf6;
  box-shadow: 3px 3px 0 var(--ink);
  color: var(--ink);
}
code.k {
  font-family: Consolas, "Courier New", monospace;
  font-weight: 700;
  background: var(--yellow);
  border: 2px solid var(--ink);
  padding: 0 5px;
  overflow-wrap: anywhere;
}
.answer-line { margin: 12px 0 0; font-weight: 700; line-height: 1.45; }
.explain { margin-top: 6px; font-size: 0.98rem; line-height: 1.45; }
.explain p { margin: 0 0 8px; }

@media (prefers-reduced-motion: reduce) {
  a.mod:hover, .opt:hover { transform: none; }
}