:root {
  --bg: #f7f6f3;
  --panel: #ffffff;
  --ink: #26221c;
  --muted: #8a8477;
  --line: #e4e0d7;
  --accent: #7c3aed;
  --accent-ink: #ffffff;
  --danger: #b3261e;
  --roll-bg: #f3eefc;
  --success: #1a7f37;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
}

main { max-width: 46rem; margin: 0 auto; padding: 1rem; }

h1 { font-size: 1.3rem; margin: 0; }
h1 a { text-decoration: none; }
h2 { font-size: 1rem; }

code {
  background: var(--line);
  padding: 0.05rem 0.3rem;
  border-radius: 4px;
  font-size: 0.9em;
}

button {
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  padding: 0.35rem 0.8rem;
  cursor: pointer;
}
button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
button.subtle {
  background: transparent;
  border-color: transparent;
  color: var(--muted);
  padding: 0.1rem 0.4rem;
}
button.subtle:hover { color: var(--ink); border-color: var(--line); }

input {
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
  background: var(--panel);
  color: var(--ink);
  min-width: 0;
}
input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.error { color: var(--danger); margin: 0.2rem 0; font-size: 0.9rem; }

/* ------------------------------------------------------------- home */
.home { padding-top: 3rem; }
.home h1 { font-size: 2rem; }
.home form { margin: 1.5rem 0; }

/* ------------------------------------------------------------- room */
.room {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  padding-bottom: 0.75rem;
}

.room header { border-bottom: 1px solid var(--line); padding-bottom: 0.5rem; }
.room-title { display: flex; align-items: center; gap: 0.6rem; }
.room-title form { margin-left: auto; }

.locked-badge {
  background: var(--danger);
  color: #fff;
  font-size: 0.75rem;
  border-radius: 999px;
  padding: 0.1rem 0.6rem;
  margin-left: auto;
}

.name-form {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.4rem;
  font-size: 0.9rem;
}
.name-form label { color: var(--muted); }
.name-form input { flex: 0 1 14rem; padding: 0.2rem 0.5rem; }
.name-form .saved { color: var(--success); }

.room-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 0.3rem;
}
.room-meta a { color: inherit; }

/* --------------------------------------------------------- messages */
#messages {
  list-style: none;
  margin: 0;
  padding: 0.5rem 0;
  flex: 1;
  overflow-y: auto;
}

.msg { padding: 0.35rem 0.2rem; border-radius: 8px; }
.msg:hover { background: var(--panel); }
.msg-head {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
}
.msg-head .author { font-weight: 600; color: var(--ink); font-size: 0.9rem; }
.msg-head .edited { font-style: italic; }
.msg-head .edit-btn { visibility: hidden; margin-left: auto; font-size: 0.8rem; }
.msg:hover .edit-btn { visibility: visible; }
.msg-body { margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
/* A comment sitting above its roll reads as a label for it. */
.msg-body + .roll-body { margin-top: 0.25rem; }

/* ------------------------------------------------------------ rolls */
.roll-body {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  background: var(--roll-bg);
  border-radius: 8px;
  padding: 0.3rem 0.6rem;
}
.roll-expr { font-weight: 600; }
.roll-detail { display: inline-flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; }
.roll-op, .roll-const { color: var(--muted); }
.roll-term { display: inline-flex; align-items: center; gap: 0.3rem; }
.term-label { color: var(--muted); font-size: 0.8rem; }
.faces { display: inline-flex; gap: 0.15rem; flex-wrap: wrap; }
.die {
  display: inline-block;
  min-width: 1.3rem;
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0 0.25rem;
  font-variant-numeric: tabular-nums;
}
.die.dropped { text-decoration: line-through; opacity: 0.45; }
.die.exploded { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.die.success { border-color: var(--success); color: var(--success); font-weight: 600; }
.die .rerolled { opacity: 0.45; font-size: 0.8em; }
.roll-total { margin-left: auto; white-space: nowrap; }
.roll-total b { font-size: 1.1rem; }

/* --------------------------------------------------------- composer */
.composer { border-top: 1px solid var(--line); padding-top: 0.6rem; }
.composer-row { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
/* The roll is the point of the app, so it leads and keeps a fixed slot;
   the comment takes whatever room is left. */
.expr-input { flex: 0 1 12rem; font-family: monospace; }
.comment-input { flex: 5 1 12rem; min-width: 0; }
.locked-note { color: var(--muted); text-align: center; }
.editing form { margin: 0; }