:root {
  --bg: #f7f8fa;
  --card: #ffffff;
  --text: #191f28;
  --sub: #6b7684;
  --line: #e5e8eb;
  --blue: #3182f6;
  --blue-dark: #1b64da;
  --red: #f04452;
  --green: #12b76a;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Malgun Gothic", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}
.wrap { max-width: 640px; margin: 0 auto; padding: 0 16px; }

.top { position: sticky; top: 0; background: rgba(247, 248, 250, 0.92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); z-index: 10; }
.top-in { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { font-size: 20px; font-weight: 800; color: var(--text); text-decoration: none; letter-spacing: -0.5px; }
.btn-alarm { background: var(--blue); color: #fff; border: 0; border-radius: 8px; padding: 8px 14px; font-size: 14px; font-weight: 600; cursor: pointer; }
.btn-alarm.sub { background: var(--card); color: var(--blue); border: 1px solid var(--line); }

.hero { padding: 32px 0 20px; }
.hero h1 { font-size: 26px; font-weight: 800; letter-spacing: -0.5px; }
.hero p { color: var(--sub); font-size: 15px; margin-top: 8px; }

.filters { padding-bottom: 8px; }
.chips { display: flex; gap: 8px; padding: 6px 0; }
.chips.scroll { overflow-x: auto; scrollbar-width: none; }
.chips.scroll::-webkit-scrollbar { display: none; }
.chips.wrapchips { flex-wrap: wrap; }
.chip {
  flex: 0 0 auto; background: var(--card); color: var(--sub);
  border: 1px solid var(--line); border-radius: 20px; padding: 7px 14px;
  font-size: 14px; font-weight: 600; cursor: pointer; white-space: nowrap;
}
.chip.on { background: var(--text); color: #fff; border-color: var(--text); }

.group { margin-top: 20px; }
.group h2 { font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.cards { display: flex; flex-direction: column; gap: 10px; }
.card {
  display: block; background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 16px; text-decoration: none; color: var(--text);
}
.card:active { background: #f2f4f6; }
.card .meta { display: flex; align-items: center; gap: 6px; font-size: 13px; color: var(--sub); }
.badge { font-size: 12px; font-weight: 700; border-radius: 6px; padding: 2px 7px; }
.badge.open { background: #e8f3ff; color: var(--blue-dark); }
.badge.soon { background: #eaf9f1; color: var(--green); }
.badge.dday { background: #ffeef0; color: var(--red); }
.badge.done { background: #f2f4f6; color: var(--sub); }
.card .name { font-size: 16px; font-weight: 700; margin: 6px 0 4px; letter-spacing: -0.3px; }
.card .dates { font-size: 14px; color: var(--sub); }
.empty { text-align: center; color: var(--sub); padding: 48px 0; font-size: 15px; }
.updated { color: var(--sub); font-size: 12px; text-align: center; padding: 24px 0 8px; }

.sheet-back { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.4); z-index: 20; }
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 21;
  background: var(--card); border-radius: 20px 20px 0 0; padding: 24px 20px calc(24px + env(safe-area-inset-bottom));
  max-width: 640px; margin: 0 auto; max-height: 80vh; overflow-y: auto;
}
.sheet h2 { font-size: 19px; font-weight: 800; }
.sheet-desc { color: var(--sub); font-size: 14px; margin: 6px 0 14px; }
.sheet h3 { font-size: 14px; font-weight: 700; color: var(--sub); margin: 14px 0 6px; }
.sheet-msg { color: var(--red); font-size: 13px; min-height: 18px; margin-top: 10px; }
.sheet-actions { display: flex; gap: 10px; margin-top: 8px; }
.btn-main { flex: 1; background: var(--blue); color: #fff; border: 0; border-radius: 12px; padding: 14px; font-size: 16px; font-weight: 700; cursor: pointer; }
.btn-main:disabled { opacity: 0.5; }
.btn-sub { flex: 1; background: #f2f4f6; color: var(--text); border: 0; border-radius: 12px; padding: 14px; font-size: 16px; font-weight: 700; cursor: pointer; }

.foot { border-top: 1px solid var(--line); margin-top: 40px; padding: 24px 0; color: var(--sub); font-size: 13px; }
.foot a { color: var(--sub); }