:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fbfd;
  --ink: #171b22;
  --muted: #647184;
  --line: #dce4ed;
  --teal: #0f766e;
  --teal-strong: #0b635e;
  --teal-soft: #d9f5ef;
  --coral: #f9735b;
  --coral-soft: #fff0ec;
  --amber: #d97706;
  --blue: #376cf5;
  --done: #16a34a;
  --shadow-soft: 0 18px 44px rgba(34, 48, 68, 0.11);
  --shadow-card: 0 10px 26px rgba(34, 48, 68, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.13), transparent 32%),
    linear-gradient(225deg, rgba(55, 108, 245, 0.09), transparent 34%),
    linear-gradient(180deg, #fbfcff 0%, var(--bg) 46%, #eef5f7 100%);
  color: var(--ink);
}

button {
  font: inherit;
}

.app-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 44px;
}

.topbar,
.summary-band,
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.topbar {
  min-height: 72px;
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-left: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  filter: drop-shadow(0 10px 18px rgba(23, 27, 34, 0.14));
}

.eyebrow,
.metric-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: 2.35rem;
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 2rem;
  line-height: 1.12;
  letter-spacing: 0;
}

.icon-button,
.secondary-button,
.task-button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease, color 140ms ease, box-shadow 140ms ease;
}

.icon-button:hover,
.secondary-button:hover,
.task-button:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.45);
  box-shadow: 0 10px 20px rgba(34, 48, 68, 0.08);
}

.icon-button:focus-visible,
.secondary-button:focus-visible,
.task-button:focus-visible,
.month-select:focus-visible,
.day-tab:focus-visible {
  outline: 3px solid rgba(55, 108, 245, 0.3);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
  padding: 0;
  margin: -1px;
}

.select-wrap {
  position: relative;
  flex: 0 0 auto;
}

.select-wrap svg {
  position: absolute;
  right: 12px;
  top: 50%;
  width: 18px;
  height: 18px;
  color: var(--teal-strong);
  pointer-events: none;
  transform: translateY(-50%);
}

.month-select {
  min-width: 124px;
  min-height: 44px;
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-weight: 850;
  padding: 9px 38px 9px 14px;
  transition: border-color 140ms ease, background 140ms ease, box-shadow 140ms ease;
}

.month-select:hover {
  border-color: rgba(15, 118, 110, 0.45);
  box-shadow: 0 10px 20px rgba(34, 48, 68, 0.08);
}

.icon-button {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  padding: 0;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

button:disabled:hover {
  border-color: var(--line);
  box-shadow: none;
  transform: none;
}

svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.summary-band {
  position: relative;
  overflow: hidden;
  min-height: 184px;
  margin-top: 14px;
  padding: 30px;
  border: 1px solid rgba(120, 138, 158, 0.18);
  border-radius: 8px;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.98), rgba(248, 251, 253, 0.92)),
    linear-gradient(90deg, rgba(15, 118, 110, 0.08), rgba(55, 108, 245, 0.06));
  box-shadow: var(--shadow-soft);
}

.summary-band::before {
  content: "";
  position: absolute;
  inset: auto 28px 0 auto;
  width: 230px;
  height: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--teal), var(--coral), var(--blue));
  opacity: 0.72;
}

.summary-copy {
  position: relative;
  z-index: 1;
  max-width: 620px;
}

.summary-dashboard {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 112px minmax(138px, auto);
  align-items: center;
  gap: 18px;
  min-width: 290px;
  padding: 14px;
  border: 1px solid rgba(120, 138, 158, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86);
}

.progress-ring {
  --value: 0;
  width: 112px;
  height: 112px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, #ffffff 58%, transparent 59%),
    conic-gradient(var(--teal) calc(var(--value) * 1%), #e3e9f0 0);
  color: var(--teal-strong);
  font-size: 1.5rem;
  font-weight: 900;
  box-shadow: inset 0 0 0 1px rgba(15, 118, 110, 0.08), 0 12px 24px rgba(15, 118, 110, 0.12);
}

.completion-block {
  min-width: 0;
  border-left: 1px solid rgba(120, 138, 158, 0.22);
  padding-left: 18px;
}

.metric-value {
  margin: 6px 0 0;
  font-size: 2.25rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0;
}

.day-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0;
}

.day-tab {
  min-height: 72px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  cursor: pointer;
  display: grid;
  align-content: center;
  gap: 10px;
  padding: 13px 14px;
  transition: border-color 140ms ease, background 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}

.day-tab:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.42);
  box-shadow: 0 10px 20px rgba(34, 48, 68, 0.08);
}

.day-tab[aria-selected="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--surface);
}

.day-tab-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.day-tab-name {
  font-weight: 850;
}

.day-tab-count {
  min-width: 46px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal-strong);
  font-size: 0.78rem;
  font-weight: 900;
}

.day-tab[aria-selected="true"] .day-tab-count {
  background: rgba(255, 255, 255, 0.14);
  color: var(--surface);
}

.tab-progress {
  display: block;
  width: 100%;
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: #e6edf4;
}

.tab-progress span {
  display: block;
  width: var(--tab-progress);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--teal), var(--coral));
}

.day-tab[aria-selected="true"] .tab-progress {
  background: rgba(255, 255, 255, 0.16);
}

.toolbar {
  min-height: 46px;
  margin-bottom: 14px;
}

.muscle-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}

.muscle-chip {
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  border: 1px solid rgba(100, 113, 132, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: var(--muted);
  padding: 6px 10px;
  font-size: 0.84rem;
  font-weight: 800;
}

.secondary-button {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 9px 13px;
  font-weight: 850;
}

.task-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.task-card {
  position: relative;
  min-height: 166px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
  overflow: hidden;
  border: 1px solid rgba(120, 138, 158, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  padding: 18px;
  box-shadow: var(--shadow-card);
}

.task-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: linear-gradient(180deg, var(--teal), var(--blue));
  opacity: 0.72;
}

.task-card.is-done {
  background: rgba(240, 253, 248, 0.94);
  border-color: rgba(22, 163, 74, 0.3);
}

.task-card.is-done::before {
  background: var(--done);
}

.task-head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: 14px;
}

.task-title {
  margin: 0 0 8px;
  font-size: 1.08rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.target {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.order-badge {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--coral-soft);
  color: var(--amber);
  font-weight: 900;
}

.task-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.stat {
  min-height: 60px;
  border: 1px solid rgba(100, 113, 132, 0.14);
  border-radius: 8px;
  background: var(--surface-soft);
  padding: 10px;
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.stat-value {
  display: block;
  margin-top: 4px;
  font-weight: 900;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.task-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.task-button {
  min-width: 118px;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 14px;
  background: var(--teal);
  border-color: var(--teal);
  color: var(--surface);
  font-weight: 900;
}

.task-button.is-done {
  background: var(--done);
  border-color: var(--done);
}

.task-card.is-hidden {
  display: none;
}

.placeholder-card {
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-weight: 850;
  text-align: center;
}

@media (max-width: 820px) {
  .app-shell {
    width: min(100% - 24px, 620px);
    padding-top: 14px;
  }

  h1 {
    font-size: 1.55rem;
  }

  h2 {
    font-size: 1.45rem;
  }

  .summary-band,
  .toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .summary-band {
    padding: 22px;
  }

  .summary-band::before {
    left: 22px;
    right: 22px;
    width: auto;
  }

  .summary-dashboard {
    width: 100%;
    grid-template-columns: 96px minmax(0, 1fr);
    min-width: 0;
  }

  .progress-ring {
    width: 96px;
    height: 96px;
    font-size: 1.28rem;
  }

  .day-tabs,
  .task-list {
    grid-template-columns: 1fr;
  }

  .toolbar {
    gap: 12px;
  }

  .secondary-button {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .topbar {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 12px;
  }

  .brand-mark {
    width: 42px;
    height: 42px;
  }

  .icon-button {
    width: 42px;
    height: 42px;
  }

  .topbar-actions {
    gap: 8px;
  }

  .month-select {
    min-width: 116px;
    min-height: 42px;
  }

  .summary-dashboard {
    grid-template-columns: 86px minmax(0, 1fr);
    gap: 14px;
    padding: 12px;
  }

  .progress-ring {
    width: 86px;
    height: 86px;
    font-size: 1.12rem;
  }

  .completion-block {
    padding-left: 14px;
  }

  .metric-value {
    font-size: 2rem;
  }

  .task-card {
    min-height: 0;
    padding: 16px;
  }

  .task-stats {
    grid-template-columns: 1fr;
  }

  .stat {
    min-height: 56px;
  }

  .task-actions,
  .task-button {
    width: 100%;
  }
}