:root {
  --bg: #14161a; --card: #1d2026; --line: #2d323b; --text: #e6e8eb; --muted: #8b93a1;
  --accent: #4c8dff; --ok: #3ecf8e; --err: #ff6b6b;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.45 system-ui, sans-serif; }
.hidden { display: none !important; }
.center { display: flex; justify-content: center; padding: 16px; }
#login-view { min-height: 100vh; align-items: center; }
.muted { color: var(--muted); }
.error { color: var(--err); min-height: 1.2em; margin: 0; }
h1 { font-size: 20px; margin: 0; }
h2 { margin-top: 0; }

header { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.spacer { flex: 1; }
#app-view > section, #app-view > div { max-width: 900px; margin-left: auto; margin-right: auto; }
#days { padding: 0 16px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.card.narrow { width: 320px; display: flex; flex-direction: column; gap: 10px; }
.toolbar { display: flex; flex-wrap: wrap; align-items: end; gap: 12px; margin: 16px; }
.toolbar label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }

input, button { font: inherit; color: var(--text); background: #262b33; border: 1px solid var(--line); border-radius: 6px; padding: 7px 10px; }
input[type=checkbox] { width: 18px; height: 18px; padding: 0; cursor: pointer; }
button { cursor: pointer; }
button:hover { border-color: var(--accent); }
button:disabled { opacity: .5; cursor: wait; }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
dialog { background: transparent; border: 0; padding: 0; color: var(--text); width: min(460px, 94vw); }
dialog::backdrop { background: rgba(0,0,0,.6); }
dialog label { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

.day { margin: 12px 0; padding: 0; overflow: hidden; }
.day.complete { border-color: #2a6b4e; }
.day-head { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.day-head .date { font-weight: 600; font-size: 16px; }
.badge { font-size: 12px; padding: 2px 8px; border-radius: 99px; background: #2b3039; color: var(--muted); }
.badge.ok { background: #17382b; color: var(--ok); }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 7px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { font-size: 12px; color: var(--muted); font-weight: 500; }
tr.paid td { opacity: .6; }
td.chk { width: 44px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
details { padding: 8px 14px 12px; }
summary { cursor: pointer; color: var(--muted); font-size: 13px; }
details table { margin-top: 8px; font-size: 13px; }
details th, details td { padding: 4px 8px; }
.empty { text-align: center; color: var(--muted); padding: 40px 0; }

.toast { position: fixed; bottom: 18px; left: 50%; transform: translateX(-50%); background: #2b3039; border: 1px solid var(--line);
  padding: 10px 16px; border-radius: 8px; max-width: 92vw; z-index: 10; }
.toast.err { border-color: var(--err); }
.toast.ok { border-color: var(--ok); }