:root {
  --bg: #f6f7f4;
  --card: #fff;
  --ink: #222;
  --sub: #667;
  --pri: #2f6f5e;
  --pri2: #e3f0eb;
  --line: #dde3df;
  --warn: #fff4dc;
  --warnb: #e8b84a;
}
@media(prefers-color-scheme: dark) {
  :root {
    --bg: #161a18;
    --card: #202523;
    --ink: #eee;
    --sub: #aab;
    --pri: #6fc4aa;
    --pri2: #22332d;
    --line: #33403b;
    --warn: #38301a;
    --warnb: #a98428;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
  line-height: 1.65;
}
.wrap { max-width: 960px; margin: 0 auto; padding: 16px; }
header {
  background: var(--pri);
  color: #fff;
  border-radius: 14px;
  padding: 22px;
  margin-bottom: 14px;
}
header h1 { margin: 0 0 6px; font-size: 1.5rem; }
header p { font-size: 0.75rem; margin: 0; opacity: .9; }
.bar {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 14px;
  position: sticky;
  top: 0;
  z-index: 5;
}
.bar .row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
input[type=text] {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  color: var(--ink);
  font-size: 1rem;
  flex: 1;
  min-width: 120px;
}

.ghost {
    width: 42px;
    height: 42px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

button i {
    font-size: 17px;
}
.prog { height: 10px; background: var(--pri2); border-radius: 6px; overflow: hidden; margin-top: 8px; }
.prog > i { display: block; height: 100%; width: 0; background: var(--pri); transition: width .3s; }
.small { font-size: .85rem; color: var(--sub); }
.small2 { font-size: .7rem; color: red; }
section.ses {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 16px;
}
section.ses h2 { margin: 0; color: var(--pri); font-size: 1.25rem; }
.goal { background: var(--pri2); border-radius: 8px; padding: 8px 12px; margin: 10px 0; font-size: .95rem; }
.blk { border-top: 1px dashed var(--line); padding-top: 12px; margin-top: 12px; }
.blk h3 { margin: 0 0 6px; font-size: 1.05rem; }
.tm {
  display: inline-block;
  background: var(--pri);
  color: #fff;
  border-radius: 20px;
  padding: 1px 10px;
  font-size: .8rem;
  margin-right: 6px;
}
label.st { display: flex; gap: 10px; align-items: flex-start; padding: 7px 4px; cursor: pointer; border-radius: 8px; }
label.st:hover { background: var(--pri2); }
label.st input { width: 22px; height: 22px; margin-top: 3px; flex: none; accent-color: var(--pri); }
label.st.done span { text-decoration: line-through; opacity: .6; }
.pr {
  background: var(--bg);
  border: 1px solid var(--line);
  border-left: 4px solid var(--pri);
  border-radius: 8px;
  padding: 10px 12px;
  margin: 6px 0 6px 36px;
  font-size: .92rem;
  white-space: pre-wrap;
  position: relative;
  padding-right: 70px;
}
.pr button { position: absolute; right: 8px; top: 8px; padding: 3px 9px; font-size: .78rem; border-radius: 8px;}
.lnk {
  background: var(--bg);
  border: 1px solid var(--line);
  border-left: 4px solid #2980b9;
  border-radius: 8px;
  padding: 10px 12px;
  margin: 6px 0 6px 36px;
  font-size: .92rem;
  position: relative;
  padding-right: 70px;
}
.lnk button {
  position: absolute;
  right: 8px;
  top: 8px;
  padding: 3px 9px;
  font-size: .78rem;
  background: #228B22;
  color: #fff;
  border-color: #2980b9;
  border-radius: 8px;
}
.warn { background: var(--warn); border: 1px solid var(--warnb); border-radius: 8px; padding: 8px 12px; margin: 8px 0; font-size: .92rem; }
.brk { text-align: center; background: var(--pri2); border-radius: 10px; padding: 10px; margin-bottom: 16px; color: var(--pri); font-weight: bold; }
.inst { display: flex; gap: 10px; align-items: center; margin-top: 14px; padding: 10px; border: 2px dashed var(--pri); border-radius: 10px; }
.inst input { width: 24px; height: 24px; accent-color: var(--pri); pointer-events: none; }
pre {
  background: var(--bg);
  padding: 10px;
  overflow-x: auto;
  border-radius: 8px;
  font-size: .9em;
  margin: 6px 0 6px 36px;
  border: 1px solid var(--line);
}
@media print {
  .bar button, .pr button, .lnk button { display: none; }
  .bar { position: static; }
  body { background: #fff; }
}
.imgs{margin:8px 0 8px 36px;display:flex;flex-direction:column;gap:10px}
figure.im{margin:0;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--card)}
figure.im img{margin:0 auto;display:block;max-width:100%;height:auto}
figure.im figcaption{font-size:.85rem;color:var(--sub);padding:6px 10px;border-top:1px dashed var(--line)}
.imfail{padding:14px 12px;text-align:left;font-size:.88rem;color:var(--ink);background:var(--warn);border:2px dashed var(--warnb);border-radius:8px;margin:6px}
.imfail b{color:var(--pri)}
.imfail span{font-size:.8rem;color:var(--sub);word-break:break-all}
@media print{figure.im{break-inside:avoid}}
/* Â÷½Ã Àá±Ý (°­»ç ½ÂÀÎ Àü) */
.lockmsg{background:var(--warn);border:2px dashed var(--warnb);border-radius:10px;padding:16px;margin:12px 0;font-weight:bold;text-align:center}
section.ses.locked{opacity:.8}
section.ses.locked .blk{display:none}

@media screen and (max-width: 768px) {
	input[type=text] {min-width: 100px;}
	.ghost {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
	}
	button i {font-size: 16px;}
}