:root {
  color-scheme: light dark;
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-alt: #eef3f8;
  --text: #17202e;
  --muted: #657186;
  --border: #d8e0ea;
  --soft-border: #e8eef5;
  --accent: #116b62;
  --accent-2: #2458a6;
  --danger: #b42318;
  --danger-bg: #fff2f0;
  --danger-border: #efb5af;
  --success: #067647;
  --success-bg: #ecfdf3;
  --success-border: #abefc6;
  --loader-bg: rgba(255, 255, 255, 0.92);
  --shadow: 0 8px 24px rgba(31, 45, 61, 0.08);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.theme-dark {
  --bg: #11151b;
  --surface: #191f28;
  --surface-alt: #232b35;
  --text: #eef3f8;
  --muted: #aab5c4;
  --border: #33404f;
  --soft-border: #283443;
  --danger-bg: #2d1718;
  --danger-border: #74302c;
  --success: #75e0a7;
  --success-bg: #10271e;
  --success-border: #25704c;
  --loader-bg: rgba(25, 31, 40, 0.92);
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
}

button {
  font: inherit;
}

.app-shell {
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 14px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 13px;
  flex: 0 0 auto;
}

h1 {
  margin: 0;
  font-size: 20px;
  line-height: 1.15;
  letter-spacing: 0;
}

.muted {
  margin-top: 3px;
  color: var(--muted);
  font-size: 13px;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.icon-button:active,
.tab:active {
  transform: translateY(1px);
}

.control-band {
  display: grid;
  gap: 8px;
  padding: 10px 0;
}

.segmented,
.category-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.segmented::-webkit-scrollbar,
.category-tabs::-webkit-scrollbar {
  display: none;
}

.tab {
  min-height: 36px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  white-space: nowrap;
  cursor: pointer;
}

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

.month-select-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 36px;
  padding-left: 2px;
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.month-select-label {
  font-weight: 700;
}

.month-select {
  width: auto;
  min-width: 154px;
  min-height: 36px;
  padding-right: 30px;
}

.apply-button {
  justify-self: start;
  min-width: 132px;
}

.apply-button.is-stale {
  box-shadow: 0 0 0 3px rgba(17, 107, 98, 0.16);
}

.category-tabs {
  padding: 8px 0 12px;
}

.category-tabs .tab.active {
  background: var(--accent-2);
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 4px 0 12px;
}

.summary-strip > div {
  min-height: 58px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.summary-label {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 12px;
}

.summary-strip strong {
  display: block;
  overflow-wrap: anywhere;
  font-size: 14px;
  line-height: 1.25;
}

.report-surface {
  position: relative;
  min-height: 320px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.report-content {
  display: grid;
  gap: 8px;
}

.selection-prompt {
  display: grid;
  place-items: center;
  min-height: 180px;
  padding: 24px;
  border: 1px dashed var(--border);
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
  line-height: 1.45;
}

.report-line {
  min-height: 26px;
  padding: 4px 0;
  border-bottom: 1px solid var(--soft-border);
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.report-line.heading {
  border-bottom: 0;
  padding: 8px 0 2px;
  font-weight: 800;
  font-size: 16px;
}

.report-line.subtle {
  color: var(--muted);
}

.report-line.metric {
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-alt);
}

.loader {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 10px;
  background: var(--loader-bg);
  color: var(--muted);
  z-index: 2;
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  margin: 0 auto;
}

.error-box {
  margin-bottom: 12px;
  padding: 10px 12px;
  border: 1px solid var(--danger-border);
  border-radius: 8px;
  color: var(--danger);
  background: var(--danger-bg);
}

.notice-box {
  margin-bottom: 12px;
  padding: 10px 12px;
  border: 1px solid var(--success-border);
  border-radius: 8px;
  color: var(--success);
  background: var(--success-bg);
}

.management {
  display: grid;
  gap: 22px;
}

.management-section {
  display: grid;
  gap: 12px;
  padding-top: 2px;
}

.management-section + .management-section {
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.management-section h2 {
  margin: 0;
  font-size: 16px;
  line-height: 1.2;
  letter-spacing: 0;
}

.management-form {
  display: grid;
  grid-template-columns: repeat(5, minmax(120px, 1fr)) auto;
  gap: 8px;
  align-items: end;
}

.field {
  display: grid;
  gap: 5px;
  min-width: 0;
  color: var(--muted);
  font-size: 12px;
}

input,
select {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 10px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 14px;
}

input[type="checkbox"] {
  width: 38px;
  padding: 0;
}

.primary-button,
.secondary-button,
.danger-button {
  min-height: 38px;
  border-radius: 8px;
  padding: 0 12px;
  font: inherit;
  cursor: pointer;
}

.primary-button {
  border: 0;
  background: var(--accent);
  color: #fff;
}

.secondary-button {
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text);
}

.danger-button {
  border: 1px solid var(--danger-border);
  background: var(--danger-bg);
  color: var(--danger);
}

.telphin-picker {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 5px;
}

.manage-list {
  display: grid;
  gap: 6px;
}

.manage-row {
  display: grid;
  grid-template-columns: minmax(90px, 0.8fr) minmax(160px, 1.4fr) auto;
  gap: 8px;
  align-items: center;
  min-height: 44px;
  padding: 7px 0;
  border-bottom: 1px solid var(--soft-border);
}

.manage-name {
  min-width: 0;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.manage-detail,
.muted-line {
  min-width: 0;
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.hidden {
  display: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 10px;
  }

  .summary-strip {
    grid-template-columns: 1fr;
  }

  h1 {
    font-size: 18px;
  }

  .management-form,
  .manage-row {
    grid-template-columns: 1fr;
  }

  .danger-button,
  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .month-select-wrap {
    min-width: min(100%, 230px);
  }

  .month-select {
    min-width: 170px;
  }
}