:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #080b0d;
  color: #f6f1df;
}

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 25% 15%, rgba(208, 151, 55, 0.14), transparent 30rem),
    linear-gradient(160deg, #11171a 0%, #080b0d 65%);
}

.shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
}

.card {
  width: min(46rem, 100%);
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid rgba(240, 205, 126, 0.25);
  border-radius: 1.5rem;
  background: rgba(13, 18, 20, 0.92);
  box-shadow: 0 1.5rem 5rem rgba(0, 0, 0, 0.45);
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: #deb45e;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.6rem, 8vw, 5rem);
  line-height: 0.95;
}

.story {
  margin: 1.5rem 0 2rem;
  color: #cbc6b7;
  font-size: 1.05rem;
  line-height: 1.7;
}

.reader label,
.files h2 {
  display: block;
  margin-bottom: 0.6rem;
  color: #f0d590;
  font-size: 0.9rem;
  font-weight: 750;
}

.input-row {
  display: flex;
  gap: 0.65rem;
}

input,
button {
  min-height: 3rem;
  border-radius: 0.75rem;
  font: inherit;
}

input {
  flex: 1;
  min-width: 0;
  border: 1px solid #394247;
  padding: 0 0.95rem;
  background: #080c0e;
  color: #fff8e8;
}

button {
  border: 0;
  padding: 0 1.15rem;
  background: #d7a746;
  color: #171105;
  font-weight: 800;
  cursor: pointer;
}

button:hover { filter: brightness(1.08); }

.files {
  margin-top: 2rem;
  padding-top: 1.4rem;
  border-top: 1px solid #293034;
}

.files ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.files a,
.back {
  display: inline-block;
  border: 1px solid #384246;
  border-radius: 999px;
  padding: 0.55rem 0.8rem;
  color: #e9d39d;
  text-decoration: none;
}

.files a:hover,
.back:hover {
  border-color: #d7a746;
  color: #fff2c8;
}

.hint {
  margin: 1.4rem 0 0;
  color: #858f91;
  font-size: 0.9rem;
}

code {
  border-radius: 0.3rem;
  padding: 0.12rem 0.3rem;
  background: #06090a;
  color: #efcb73;
}

.error-card { text-align: center; }

@media (max-width: 36rem) {
  .input-row { flex-direction: column; }
  button { width: 100%; }
}