/* Yakusoku — light theme, warm amber accent, mobile-first. */
:root {
  --accent: #f59e0b;
  --accent-dark: #b45309;
  --accent-soft: #fef3c7;
  --bg: #fffbf5;
  --card: #ffffff;
  --text: #292524;
  --muted: #78716c;
  --line: #fde68a;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}

.app-header {
  background: linear-gradient(135deg, #f59e0b, #f97316);
  color: #fff;
  padding: 22px 16px 18px;
  text-align: center;
}
.app-header h1 { margin: 0; font-size: 28px; letter-spacing: 0.04em; }
.tagline { margin: 4px 0 0; font-size: 13px; opacity: 0.92; }

main { max-width: 640px; margin: 0 auto; padding: 12px 12px 40px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: 0 1px 3px rgba(180, 83, 9, 0.06);
}
.card h2 { margin: 0 0 10px; font-size: 18px; }
.card h3 { margin: 14px 0 8px; font-size: 15px; }
.hint { color: var(--muted); font-size: 12.5px; margin: 6px 0; }

.challenge-card { text-align: center; background: var(--accent-soft); }
.challenge-label { font-size: 13px; color: var(--accent-dark); font-weight: 600; }
.challenge-word { font-size: 34px; font-weight: 800; color: var(--accent-dark); letter-spacing: 0.12em; margin: 2px 0; }
.challenge-mini { background: var(--accent-soft); border-radius: 8px; padding: 6px 10px; font-size: 14px; margin: 8px 0; }

.row { display: flex; gap: 8px; align-items: center; margin: 8px 0; }
.row.space-between { justify-content: space-between; }
.row input[type="text"] { flex: 1; }

input[type="text"], input[type="datetime-local"], select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #e7e5e4;
  border-radius: 10px;
  font-size: 16px;
  background: #fff;
  color: var(--text);
}
label { display: block; font-size: 13.5px; font-weight: 600; margin: 10px 0; }
label input, label select { margin-top: 4px; font-weight: 400; }
label.check { display: flex; gap: 8px; align-items: center; font-weight: 500; }
label.check input { width: auto; }

.btn {
  appearance: none;
  border: 1px solid #e7e5e4;
  background: #fff;
  color: var(--text);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:disabled { opacity: 0.45; cursor: default; }
.btn.small { padding: 6px 10px; font-size: 13px; }
.btn.danger { color: var(--danger); border-color: #fecaca; }
.linklike {
  background: none; border: none; color: var(--muted);
  text-decoration: underline; font-size: 13.5px; cursor: pointer;
  display: block; margin: 12px auto 0;
}

.my-name { font-size: 20px; font-weight: 700; }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 12px 0 4px; }
.stat { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: 8px 4px; text-align: center; }
.stat-num { font-size: 20px; font-weight: 800; color: var(--accent-dark); }
.stat-label { font-size: 11px; color: var(--muted); }

.badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge {
  width: 76px; text-align: center; padding: 8px 2px;
  border-radius: 10px; border: 1px dashed #e7e5e4; color: #a8a29e;
  filter: grayscale(1); opacity: 0.55;
}
.badge.earned {
  border: 1px solid var(--accent); background: var(--accent-soft);
  color: var(--accent-dark); filter: none; opacity: 1;
}
.badge-icon { font-size: 22px; }
.badge-label { font-size: 11px; font-weight: 700; }

.push-row { display: flex; gap: 10px; align-items: center; margin-top: 14px; flex-wrap: wrap; }

.task {
  display: flex; gap: 10px; justify-content: space-between; align-items: center;
  border: 1px solid #f5f5f4; border-radius: 12px; padding: 10px 12px; margin: 8px 0;
  background: #fff;
}
.task.overdue { border-color: #fecaca; background: var(--danger-soft); }
.task.done { opacity: 0.65; }
.task.flash { outline: 3px solid var(--accent); }
.task-title { font-weight: 700; font-size: 15.5px; word-break: break-word; }
.task-meta { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 4px; }
.task-actions { display: flex; flex-direction: column; gap: 5px; }
.chip {
  font-size: 11px; background: #f5f5f4; color: var(--muted);
  border-radius: 999px; padding: 2px 8px;
}
.chip.danger { background: #fee2e2; color: var(--danger); font-weight: 700; }
.chip.proof { background: var(--accent-soft); color: var(--accent-dark); }
.chip.self { background: #ede9fe; color: #6d28d9; font-weight: 700; }
.empty { color: var(--muted); text-align: center; padding: 18px 0; font-size: 14px; }
details { margin-top: 10px; }
summary { cursor: pointer; color: var(--muted); font-size: 13.5px; }

.league-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0; }
.league-tab {
  border: 1px solid var(--line); background: #fff; border-radius: 999px;
  padding: 6px 12px; font-size: 13.5px; font-weight: 600; cursor: pointer;
}
.league-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.league-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.league-code { font-weight: 800; letter-spacing: 0.15em; color: var(--accent-dark); }
.rank-row {
  display: flex; gap: 8px; align-items: center;
  padding: 8px 10px; border-radius: 10px; margin: 5px 0; background: var(--bg);
  font-size: 14px;
}
.rank-row.me { background: var(--accent-soft); font-weight: 700; }
.rank-num { font-weight: 800; color: var(--accent-dark); width: 20px; text-align: center; }
.rank-name { flex: 1; word-break: break-word; }
.rank-stat { font-size: 12.5px; color: var(--muted); white-space: nowrap; }
.rank-row.me .rank-stat { color: var(--accent-dark); }
.feed-row { display: flex; gap: 10px; padding: 8px 0; border-bottom: 1px solid #f5f5f4; font-size: 14px; }
.feed-row:last-child { border-bottom: none; }
.feed-photo { width: 54px; height: 54px; object-fit: cover; border-radius: 8px; flex-shrink: 0; }
.feed-main { flex: 1; min-width: 0; word-break: break-word; }
.feed-time { color: var(--muted); font-size: 12px; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(41, 37, 36, 0.55);
  display: flex; align-items: center; justify-content: center;
  padding: 16px; z-index: 50;
}
.modal-backdrop[hidden] { display: none; }
.modal {
  background: #fff; border-radius: 16px; padding: 20px;
  width: 100%; max-width: 420px; max-height: 88vh; overflow-y: auto;
}
.modal h3 { margin: 0 0 8px; font-size: 17px; }
.modal.guilt { text-align: center; }
.guilt-emoji { font-size: 44px; }
.guilt-text { font-size: 18px; font-weight: 700; margin: 10px 0 16px; }
.modal .row { justify-content: center; flex-wrap: wrap; }
.photo-pick input[type="file"] { display: none; }
.photo-pick { display: inline-block; margin: 8px 0; }
.photo-preview { width: 100%; border-radius: 10px; margin: 8px 0; }

.toast {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%);
  background: #292524; color: #fff; padding: 11px 18px; border-radius: 999px;
  font-size: 14px; z-index: 100; max-width: 92vw; text-align: center;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.app-footer { text-align: center; color: var(--muted); font-size: 12px; padding: 8px; }