@import url("https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@500;700&display=swap");

:root {
  --color-bg: #f7f2ea;
  --color-surface: #fffdfa;
  --color-primary: #a8624f;
  --color-primary-dark: #8a4f3f;
  --color-accent: #7c8f6a;
  --color-accent-dark: #62734f;
  --color-text: #2f2a26;
  --color-text-muted: #8a7f74;
  --color-border: #e9dfd1;
  --color-heat-0: #e9dfd1;
  --color-heat-2: #a8624f;
  --font-serif: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-sans: "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 3px rgba(60, 45, 35, 0.06), 0 6px 18px rgba(60, 45, 35, 0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #1e1a17;
    --color-surface: #29231f;
    --color-primary: #d99a86;
    --color-primary-dark: #c88268;
    --color-accent: #a3b58e;
    --color-accent-dark: #8ca071;
    --color-text: #f2ece3;
    --color-text-muted: #a89b8d;
    --color-border: #3a332c;
    --color-heat-0: #3a332c;
    --color-heat-2: #c88268;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.25), 0 6px 18px rgba(0, 0, 0, 0.2);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  -webkit-text-size-adjust: 100%;
}

.app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 80px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 18px 16px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-title { display: flex; align-items: center; gap: 12px; }
.header-title .logo { font-size: 24px; }
.header-title h1 { font-family: var(--font-serif); font-weight: 700; font-size: 19px; margin: 0; letter-spacing: 0.02em; }
.subtitle { font-size: 11px; color: var(--color-text-muted); margin: 3px 0 0; letter-spacing: 0.02em; }

.day-badge {
  background: var(--color-primary);
  color: #fff;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: bold;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

main { flex: 1; padding: 18px 16px; }

.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadein 0.25s ease; }

@keyframes fadein {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.today-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 18px;
  margin-bottom: 18px;
}

.phase-label {
  font-size: 11px;
  font-weight: bold;
  color: var(--color-accent-dark);
  letter-spacing: 0.04em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

.today-theme { display: flex; align-items: center; gap: 14px; }
.theme-icon { font-size: 32px; line-height: 1; }
.today-daylabel { margin: 0; font-size: 11px; color: var(--color-text-muted); letter-spacing: 0.02em; }
.today-theme h2 { font-family: var(--font-serif); font-weight: 700; margin: 3px 0 0; font-size: 21px; }

.progress-wrap { margin-top: 18px; }
.progress-bar-outer {
  background: var(--color-border);
  border-radius: 999px;
  height: 6px;
  overflow: hidden;
}
.progress-bar-inner {
  background: var(--color-primary);
  height: 100%;
  width: 0%;
  transition: width 0.3s ease;
}
.progress-label { font-size: 11px; color: var(--color-text-muted); margin: 8px 0 0; text-align: right; }
.pace-note { font-size: 12px; color: var(--color-accent-dark); margin: 14px 0 0; text-align: center; font-style: italic; }

.task-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }

.task-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: opacity 0.2s ease;
}

.task-item.done { opacity: 0.5; }
.task-item.done .task-name { text-decoration: line-through; }

.task-check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1.5px solid var(--color-primary);
  background: transparent;
  flex-shrink: 0;
  cursor: pointer;
  font-size: 13px;
  color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
}
.task-item.done .task-check { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

.task-icon {
  font-size: 16px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.task-body { flex: 1; min-width: 0; }
.task-name { font-size: 13.5px; font-weight: bold; margin: 0; }
.task-desc { font-size: 11.5px; color: var(--color-text-muted); margin: 3px 0 0; line-height: 1.5; }
.task-min { font-size: 10.5px; color: var(--color-text-muted); white-space: nowrap; margin: 4px 0 0; }

.task-play {
  background: none;
  color: var(--color-accent-dark);
  border: 1.5px solid var(--color-accent);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  font-size: 11px;
  cursor: pointer;
  flex-shrink: 0;
}

.complete-banner {
  margin-top: 18px;
  background: var(--color-surface);
  border: 1px solid var(--color-accent);
  color: var(--color-accent-dark);
  padding: 14px;
  border-radius: var(--radius);
  text-align: center;
  font-weight: bold;
  font-size: 13px;
}
.milestone-banner {
  margin-top: 18px;
  background: var(--color-primary);
  color: #fff;
  padding: 16px;
  border-radius: var(--radius);
  text-align: center;
  font-size: 13px;
  line-height: 1.7;
}
.hidden { display: none !important; }

.section-title { font-family: var(--font-serif); font-weight: 700; font-size: 18px; margin: 4px 0 14px; }
.section-subtitle { font-size: 13px; margin: 22px 0 10px; color: var(--color-text-muted); font-weight: bold; letter-spacing: 0.02em; }

.stats-row { display: flex; gap: 10px; }
.stat-box {
  flex: 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 6px;
  text-align: center;
}
.stat-num { font-family: var(--font-serif); font-size: 22px; font-weight: 700; margin: 0; color: var(--color-primary-dark); }
.stat-label { font-size: 10.5px; color: var(--color-text-muted); margin: 5px 0 0; }

.heatmap {
  display: grid;
  grid-template-columns: repeat(13, 1fr);
  gap: 3px;
}
.heatmap-col { display: grid; grid-template-rows: repeat(7, 1fr); gap: 3px; }
.heat-cell {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 2px;
  background: var(--color-heat-0);
}
.heat-cell.lv2 { background: var(--color-heat-2); }
.heat-cell-empty { background: transparent; }

.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 10.5px;
  color: var(--color-text-muted);
}
.legend-box { width: 10px; height: 10px; border-radius: 2px; }
.legend-box.lv0 { background: var(--color-heat-0); }
.legend-box.lv2 { background: var(--color-heat-2); }

.log-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.log-label { font-size: 11.5px; color: var(--color-text-muted); font-weight: bold; letter-spacing: 0.02em; }
.mood-picker { display: flex; justify-content: space-between; }
.mood-option {
  font-size: 24px;
  background: none;
  border: 1.5px solid transparent;
  border-radius: 50%;
  padding: 5px;
  cursor: pointer;
  line-height: 1;
}
.mood-option.selected { border-color: var(--color-primary); background: var(--color-bg); }

input[type="number"], input[type="time"], textarea {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 14px;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: inherit;
  width: 100%;
}

.btn-primary, .btn-secondary {
  border: none;
  border-radius: 999px;
  padding: 12px;
  font-size: 13.5px;
  font-weight: bold;
  cursor: pointer;
  letter-spacing: 0.02em;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-secondary { background: var(--color-bg); color: var(--color-text); border: 1px solid var(--color-border); }

.log-history { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.log-history li {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12.5px;
  display: flex;
  gap: 10px;
  align-items: baseline;
}
.log-date { font-weight: bold; color: var(--color-primary-dark); white-space: nowrap; }
.log-empty { color: var(--color-text-muted); font-size: 13px; text-align: center; padding: 24px 0; }

.about-text { font-size: 13.5px; line-height: 1.9; }
.disclaimer-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  font-size: 11.5px;
  line-height: 1.8;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.disclaimer-box strong { color: var(--color-text); }
.disclaimer-box a { color: var(--color-primary-dark); }

.reminder-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.reminder-note { font-size: 10.5px; color: var(--color-text-muted); margin: 0; line-height: 1.6; }

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  display: flex;
  padding: 8px 4px calc(8px + env(safe-area-inset-bottom));
}
.nav-btn {
  flex: 1;
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  font-size: 10.5px;
  color: var(--color-text-muted);
  padding: 6px 0;
  cursor: pointer;
  letter-spacing: 0.02em;
}
.nav-btn span { font-size: 17px; }
.nav-btn.active { color: var(--color-primary-dark); font-weight: bold; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(30, 24, 20, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.modal-card {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 30px 26px;
  width: 85%;
  max-width: 340px;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow);
}
.modal-task-name { font-size: 14px; color: var(--color-text-muted); margin: 0 0 14px; }
.modal-timer { font-family: var(--font-serif); font-size: 42px; font-weight: 700; margin: 0 0 22px; color: var(--color-primary-dark); }
.modal-actions { display: flex; gap: 10px; }
.modal-actions button { flex: 1; }
.modal-close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  font-size: 15px;
  color: var(--color-text-muted);
  cursor: pointer;
}