*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --cream: #f5e6c8;
  --peach: #e8c4a0;
  --warm-brown: #5c3d2e;
  --dark-brown: #3d2817;
  --sakura: #f4a7b9;
  --sakura-deep: #e8789a;
  --grass: #7cb87a;
  --grass-deep: #4a9a48;
  --sky: #a8d8ea;
  --desk-blue: #6b9fd4;
  --break-green: #8ecf8e;
  --panel-bg: rgba(245, 230, 200, 0.92);
  --panel-border: #5c3d2e;
  --font-pixel: "Press Start 2P", monospace;
  --font-display: "VT323", monospace;
}

html {
  image-rendering: pixelated;
}

body {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--dark-brown);
  min-height: 100vh;
  line-height: 1.4;
  overflow-x: hidden;
}

body.mode-focus {
  --accent: var(--sakura-deep);
  --accent-light: var(--sakura);
  --ring-color: var(--sakura-deep);
}

body.mode-break {
  --accent: var(--grass-deep);
  --accent-light: var(--break-green);
  --ring-color: var(--grass-deep);
}

.bg-layer {
  position: fixed;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: -2;
  transition: opacity 1.2s ease;
}

.bg-desk {
  background-image: url("../img/bg-desk.png");
  opacity: 1;
}

.bg-park {
  background-image: url("../img/bg-park.png");
  opacity: 0;
}

body.mode-break .bg-desk {
  opacity: 0;
}

body.mode-break .bg-park {
  opacity: 1;
}

.bg-overlay {
  position: fixed;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(245, 230, 200, 0.55) 0%,
    rgba(232, 196, 160, 0.65) 50%,
    rgba(124, 184, 122, 0.45) 100%
  );
  z-index: -1;
}

.app {
  max-width: 1060px;
  margin: 0 auto;
  padding: 20px 16px 48px;
  position: relative;
}

.header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 28px;
}

.logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  background: var(--panel-bg);
  border: 4px solid var(--panel-border);
  box-shadow: 4px 4px 0 var(--panel-border);
  padding: 16px 28px;
}

.logo-title {
  font-family: var(--font-pixel);
  font-size: clamp(0.75rem, 2.5vw, 1rem);
  letter-spacing: 0.08em;
  color: var(--sakura-deep);
  text-shadow: 2px 2px 0 var(--cream);
}

.logo-byline {
  font-family: var(--font-pixel);
  font-size: clamp(0.45rem, 1.5vw, 0.55rem);
  letter-spacing: 0.2em;
  color: var(--warm-brown);
}

.pixel-panel {
  background: var(--panel-bg);
  border: 4px solid var(--panel-border);
  box-shadow: 6px 6px 0 var(--panel-border);
}

.main {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 24px;
  align-items: start;
}

@media (max-width: 820px) {
  .main {
    grid-template-columns: 1fr;
  }
}

.timer-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 24px 20px 28px;
  position: relative;
}

.scene-art {
  width: 100%;
  max-width: 320px;
  border: 3px solid var(--panel-border);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  position: relative;
}

.scene-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  image-rendering: pixelated;
  transition: opacity 0.8s ease;
}

.scene-focus {
  opacity: 1;
}

.scene-break {
  opacity: 0;
}

body.mode-break .scene-focus {
  opacity: 0;
}

body.mode-break .scene-break {
  opacity: 1;
}

.task-input-wrap {
  width: 100%;
  max-width: 380px;
}

.pixel-input {
  width: 100%;
  font-family: var(--font-display);
  font-size: 1.25rem;
  padding: 10px 14px;
  border: 3px solid var(--panel-border);
  background: #fff8ee;
  color: var(--dark-brown);
  text-align: center;
  box-shadow: inset 2px 2px 0 rgba(92, 61, 46, 0.15);
}

.pixel-input:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
}

.pixel-input::placeholder {
  color: rgba(92, 61, 46, 0.45);
}

.duration-picker {
  width: 100%;
  max-width: 380px;
  text-align: center;
}

.section-label {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--warm-brown);
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}

.duration-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.duration-btn {
  font-family: var(--font-display);
  font-size: 1.15rem;
  padding: 8px 14px;
  border: 3px solid var(--panel-border);
  background: #fff8ee;
  color: var(--dark-brown);
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--panel-border);
  transition: transform 0.1s, background 0.15s;
}

.duration-btn:hover:not(:disabled) {
  background: var(--cream);
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--panel-border);
}

.duration-btn:active:not(:disabled) {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--panel-border);
}

.duration-btn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--dark-brown);
}

.duration-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.duration-add {
  background: var(--sky);
  color: var(--dark-brown);
}

.duration-sub {
  background: var(--peach);
  color: var(--dark-brown);
}

.duration-total {
  margin-top: 10px;
  font-size: 1.1rem;
  color: var(--warm-brown);
}

.duration-total.over-limit {
  color: var(--sakura-deep);
  font-weight: bold;
}

.timer-ring-wrap {
  position: relative;
  width: 240px;
  height: 240px;
}

.timer-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring-bg {
  fill: none;
  stroke: rgba(92, 61, 46, 0.15);
  stroke-width: 10;
}

.ring-progress {
  fill: none;
  stroke: var(--ring-color);
  stroke-width: 10;
  stroke-linecap: butt;
  stroke-dasharray: 754;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.3s linear, stroke 0.4s;
}

.timer-display {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.timer-time {
  font-family: var(--font-pixel);
  font-size: clamp(1.4rem, 5vw, 1.75rem);
  color: var(--dark-brown);
  font-variant-numeric: tabular-nums;
}

.timer-label {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--warm-brown);
  text-transform: lowercase;
}

.controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.pixel-btn {
  font-family: var(--font-display);
  font-size: 1.2rem;
  padding: 10px 20px;
  border: 3px solid var(--panel-border);
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--panel-border);
  transition: transform 0.1s;
}

.pixel-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--panel-border);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  min-width: 110px;
}

.btn-secondary {
  background: var(--cream);
  color: var(--dark-brown);
  min-width: 110px;
}

.btn-ghost {
  background: #fff8ee;
  color: var(--warm-brown);
}

.start-prompt {
  width: 100%;
  max-width: 380px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.start-prompt-label {
  font-family: var(--font-pixel);
  font-size: 0.45rem;
  color: var(--grass-deep);
  line-height: 1.8;
}

.start-input {
  font-size: 1.4rem;
  letter-spacing: 0.05em;
}

.start-input.valid {
  border-color: var(--grass-deep);
  background: #eef8ee;
}

.start-hint {
  font-size: 1rem;
  color: var(--warm-brown);
  min-height: 1.4em;
}

.start-hint.error {
  color: var(--sakura-deep);
}

.session-status {
  font-size: 1.1rem;
  color: var(--warm-brown);
  text-align: center;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stats-card,
.todo-card,
.calendar-card,
.history-card {
  padding: 16px;
}

.stats-card h2,
.todo-card h2,
.calendar-card h2,
.history-card h2 {
  font-family: var(--font-pixel);
  font-size: 0.45rem;
  color: var(--warm-brown);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
  line-height: 1.8;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: #fff8ee;
  border: 2px solid var(--panel-border);
  padding: 10px;
}

.stat-value {
  font-family: var(--font-pixel);
  font-size: 0.65rem;
  color: var(--accent);
  line-height: 1.6;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--warm-brown);
}

.info-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 1.05rem;
  color: var(--dark-brown);
}

.info-list li::before {
  content: "♡ ";
  color: var(--sakura-deep);
}

.info-list strong {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--grass-deep);
}

.active-task-label {
  font-size: 1.1rem;
  color: var(--sakura-deep);
  text-align: center;
  max-width: 380px;
}

.active-task-label span {
  font-weight: bold;
}

.todo-card-header {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.todo-card-header h2 {
  margin-bottom: 0;
}

.completed-toggle {
  font-family: var(--font-display);
  font-size: 0.95rem;
  padding: 6px 10px;
  border: 2px solid var(--panel-border);
  background: #fff8ee;
  color: var(--warm-brown);
  cursor: pointer;
  text-align: left;
  width: 100%;
}

.completed-toggle.active {
  background: var(--break-green);
  border-color: var(--grass-deep);
  color: var(--dark-brown);
}

.completed-list {
  margin-top: 8px;
  border-top: 2px dashed var(--panel-border);
  padding-top: 8px;
}

.disappointed-inline {
  width: 100%;
  max-width: 380px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
  animation: shake 0.5s ease;
}

.disappointed-text {
  font-family: var(--font-pixel);
  font-size: 0.45rem;
  color: var(--sakura-deep);
  line-height: 1.9;
  text-align: center;
}

.calendar-header {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}

.calendar-header h2 {
  margin-bottom: 0;
}

.calendar-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.cal-month-label {
  font-size: 1.1rem;
  color: var(--dark-brown);
  flex: 1;
  text-align: center;
}

.cal-nav-btn {
  font-family: var(--font-display);
  font-size: 1.1rem;
  padding: 4px 12px;
  border: 2px solid var(--panel-border);
  background: #fff8ee;
  cursor: pointer;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 6px;
  text-align: center;
  font-family: var(--font-pixel);
  font-size: 0.35rem;
  color: var(--warm-brown);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.cal-day {
  min-height: 52px;
  padding: 4px;
  border: 2px solid var(--panel-border);
  background: #fff8ee;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 0.85rem;
}

.cal-day.empty {
  background: transparent;
  border-color: transparent;
  cursor: default;
}

.cal-day.today {
  border-color: var(--sakura-deep);
  box-shadow: 2px 2px 0 var(--sakura);
}

.cal-day.selected {
  background: #fff0f4;
  border-color: var(--sakura-deep);
}

.cal-day.has-study {
  background: #eef8ee;
}

.cal-day-num {
  font-size: 0.95rem;
  color: var(--dark-brown);
}

.cal-day-time {
  font-family: var(--font-pixel);
  font-size: 0.32rem;
  color: var(--grass-deep);
  line-height: 1.4;
  text-align: center;
}

.calendar-selected {
  margin-top: 10px;
  font-size: 0.95rem;
  color: var(--warm-brown);
  text-align: center;
}

.todo-form {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.todo-input {
  flex: 1;
  font-size: 1.1rem;
  text-align: left;
}

.todo-add-btn {
  min-width: 44px;
  padding: 8px 12px;
  font-size: 1.4rem;
  line-height: 1;
}

.todo-list {
  list-style: none;
  max-height: 220px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.todo-list::-webkit-scrollbar {
  width: 6px;
}

.todo-list::-webkit-scrollbar-thumb {
  background: var(--peach);
  border: 2px solid var(--panel-border);
}

.todo-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px;
  background: #fff8ee;
  border: 2px solid var(--panel-border);
  transition: border-color 0.15s, background 0.15s;
}

.todo-item.selected {
  border-color: var(--sakura-deep);
  background: #fff0f4;
  box-shadow: 2px 2px 0 var(--sakura);
}

.todo-item.done .todo-title {
  text-decoration: line-through;
  opacity: 0.55;
}

.todo-check {
  width: 22px;
  height: 22px;
  border: 2px solid var(--panel-border);
  background: #fff;
  cursor: pointer;
  flex-shrink: 0;
  font-size: 0.85rem;
  line-height: 1;
  padding: 0;
}

.todo-item.done .todo-check {
  background: var(--break-green);
}

.todo-body {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  font-family: var(--font-display);
  color: var(--dark-brown);
  padding: 0;
}

.todo-title {
  display: block;
  font-size: 1.05rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.todo-time {
  display: block;
  font-size: 0.9rem;
  color: var(--warm-brown);
}

.todo-delete {
  background: none;
  border: none;
  color: var(--warm-brown);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  flex-shrink: 0;
}

.todo-delete:hover {
  color: var(--sakura-deep);
}

.todo-empty {
  font-size: 0.95rem;
  color: var(--warm-brown);
  text-align: center;
  padding: 10px 0;
}

.history-header {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 12px;
}

.history-header h2 {
  margin-bottom: 0;
}

.history-tabs {
  display: flex;
  gap: 6px;
}

.history-tab {
  font-family: var(--font-display);
  font-size: 1rem;
  padding: 4px 12px;
  border: 2px solid var(--panel-border);
  background: #fff8ee;
  color: var(--warm-brown);
  cursor: pointer;
}

.history-tab.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--dark-brown);
}

.history-item.partial .history-item-type.focus {
  background: var(--peach);
}

.task-summary-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  background: #fff8ee;
  border: 2px solid var(--panel-border);
  font-size: 0.95rem;
  gap: 8px;
}

.task-summary-name {
  font-size: 1.05rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px;
}

.task-summary-time {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--sakura-deep);
  flex-shrink: 0;
}

.history-list {
  list-style: none;
  max-height: 200px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.history-list::-webkit-scrollbar {
  width: 6px;
}

.history-list::-webkit-scrollbar-thumb {
  background: var(--peach);
  border: 2px solid var(--panel-border);
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  background: #fff8ee;
  border: 2px solid var(--panel-border);
  font-size: 0.95rem;
  gap: 8px;
}

.history-item-task {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 130px;
}

.history-item-meta {
  color: var(--warm-brown);
  font-size: 0.85rem;
  text-align: right;
  flex-shrink: 0;
}

.history-item-type {
  display: inline-block;
  padding: 1px 6px;
  font-family: var(--font-pixel);
  font-size: 0.35rem;
  margin-bottom: 2px;
}

.history-item-type.focus {
  background: var(--sakura);
  color: var(--dark-brown);
}

.history-item-type.short_break {
  background: var(--break-green);
  color: var(--dark-brown);
}

.history-empty {
  font-size: 1rem;
  color: var(--warm-brown);
  text-align: center;
  padding: 12px 0;
}

.warning-inline {
  width: 100%;
  max-width: 380px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
  animation: shake 0.5s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

.warning-img {
  width: 100%;
  border: 3px solid var(--panel-border);
  box-shadow: 3px 3px 0 var(--panel-border);
  image-rendering: auto;
  display: block;
}

.warning-text {
  font-family: var(--font-pixel);
  font-size: 0.5rem;
  color: var(--sakura-deep);
  line-height: 1.8;
  text-align: center;
}

.warning-btn {
  width: 100%;
  justify-content: center;
}

.is-hidden {
  display: none !important;
}

.duration-picker.locked {
  opacity: 0.5;
  pointer-events: none;
}

body.awaiting-start .timer-ring-wrap {
  opacity: 0.6;
}

body.awaiting-start .controls {
  display: none;
}