:root {
  --bg: #1f2832;
  --surface: #2a3440;
  --surface-soft: #313d4b;
  --surface-strong: #394757;
  --ink: #f4f8fc;
  --muted: #b5c3d1;
  --line: rgba(255, 255, 255, 0.08);
  --accent: #1565c0;
  --accent-strong: #90caf9;
  --success: #8bc27d;
  --danger: #ff9a8f;
  --shadow: 0 20px 48px rgba(0, 0, 0, 0.28);
  --radius: 1.35rem;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background:
    radial-gradient(circle at top, rgba(21, 101, 192, 0.22), transparent 22rem),
    linear-gradient(180deg, #25313d 0%, var(--bg) 100%);
  color: var(--ink);
}

button,
input,
select,
textarea {
  font: inherit;
}

[hidden] {
  display: none !important;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1rem;
}

.auth-card {
  width: min(100%, 26rem);
  padding: 1.4rem;
  border-radius: 1.75rem;
  background: rgba(39, 39, 39, 0.96);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.app-shell {
  width: min(100%, 30rem);
  min-height: 100vh;
  margin: 0 auto;
  padding: 0.85rem 0.85rem 6rem;
  position: relative;
}

.top-bar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.8rem;
  align-items: center;
  margin-bottom: 1rem;
}

.top-copy {
  min-width: 0;
}

.top-title,
.top-subtitle,
.mini-label,
.eyebrow,
h1,
h2,
p {
  margin: 0;
}

.top-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.top-subtitle,
.subtle-text,
.mini-label {
  color: var(--muted);
}

.top-subtitle,
.subtle-text {
  font-size: 0.9rem;
}

.eyebrow,
.mini-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
}

h1 {
  font-size: clamp(2rem, 9vw, 2.8rem);
  line-height: 0.95;
  max-width: 10ch;
  margin: 0.4rem 0 0.85rem;
}

h2 {
  font-size: 1.1rem;
}

.lede {
  color: var(--muted);
  line-height: 1.45;
}

.top-actions,
.button-row,
.segmented,
.summary-strip,
.scroll-row {
  display: flex;
  gap: 0.7rem;
  align-items: center;
}

.scroll-row {
  overflow-x: auto;
  padding-bottom: 0.15rem;
  scrollbar-width: none;
}

.scroll-row::-webkit-scrollbar {
  display: none;
}

.icon-button,
.segment,
.nav-item,
.filter-pill,
.quick-card,
.settings-row,
.secondary-button,
.primary-button,
.ghost-button {
  border: 0;
  cursor: pointer;
}

.icon-button {
  min-width: 2.45rem;
  min-height: 2.45rem;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--ink);
  border: 1px solid var(--line);
}

.ghost-button {
  background: rgba(255, 255, 255, 0.06);
}

.segmented {
  padding: 0.25rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.04);
}

.segment {
  flex: 1 1 0;
  min-height: 2.5rem;
  padding: 0 0.8rem;
  border-radius: 0.85rem;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
}

.segment.is-active {
  background: var(--accent);
  color: white;
}

.compact-segmented {
  width: min(100%, 15rem);
}

.screen {
  display: none;
  gap: 1rem;
}

.screen.is-active {
  display: grid;
}

.account-pill,
.mobile-card,
.calendar-card,
.forecast-card,
.settings-card,
.quick-card,
.settings-row,
.sheet,
.sheet-form input,
.sheet-form select,
.sheet-form textarea,
.activity-item,
.status-chip,
.summary-stat {
  border: 1px solid var(--line);
}

.account-pill,
.mobile-card,
.calendar-card,
.settings-card,
.activity-item {
  background: rgba(46, 46, 46, 0.94);
}

.account-pill,
.forecast-card,
.mobile-card,
.calendar-card,
.settings-card,
.section-block {
  border-radius: 1.5rem;
  box-shadow: var(--shadow);
}

.account-pill,
.settings-row,
.activity-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.account-pill,
.settings-row,
.mobile-card,
.calendar-card,
.settings-card,
.forecast-card,
.section-block,
.sheet {
  padding: 1rem;
}

.forecast-card {
  background: linear-gradient(180deg, rgba(21, 101, 192, 0.96), rgba(28, 88, 160, 0.94));
}

.forecast-card .mini-label,
.forecast-card .subtle-text {
  color: rgba(255, 255, 255, 0.75);
}

.card-head,
.section-header,
.calendar-top,
.sheet-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
}

.forecast-amount {
  display: block;
  font-size: 2rem;
  margin: 0.9rem 0 1rem;
}

.forecast-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.quick-card,
.settings-row {
  min-height: 4.3rem;
  border-radius: 1.25rem;
  background: var(--surface);
  color: var(--ink);
  justify-content: flex-start;
}

.quick-icon,
.row-icon {
  min-width: 2rem;
  min-height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.8rem;
  background: rgba(21, 101, 192, 0.18);
  color: var(--accent-strong);
  font-size: 0.78rem;
  font-weight: 800;
}

.section-block {
  display: grid;
  gap: 0.85rem;
  background: rgba(42, 42, 42, 0.84);
}

.summary-strip {
  overflow-x: auto;
  padding-bottom: 0.1rem;
  scrollbar-width: none;
}

.summary-strip::-webkit-scrollbar {
  display: none;
}

.summary-stat,
.status-chip {
  display: inline-grid;
  gap: 0.2rem;
  padding: 0.7rem 0.85rem;
  border-radius: 1rem;
  background: rgba(21, 101, 192, 0.14);
  color: var(--ink);
  white-space: nowrap;
}

.status-chip {
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  font-size: 0.85rem;
}

.activity-list {
  display: grid;
  gap: 0.7rem;
}

.activity-item {
  padding: 0.9rem 0.95rem;
  border-radius: 1.2rem;
  background: var(--surface);
}

.activity-main {
  min-width: 0;
}

.activity-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
}

.activity-meta {
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.activity-amount {
  text-align: right;
  white-space: nowrap;
}

.amount-positive {
  color: var(--success);
}

.amount-negative {
  color: var(--danger);
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 0.45rem;
}

.calendar-weekdays {
  margin: 0.9rem 0 0.35rem;
}

.calendar-weekday {
  text-align: center;
  color: var(--muted);
  font-size: 0.78rem;
}

.day-cell {
  min-height: 3.5rem;
  padding: 0.35rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.03);
  display: grid;
  align-content: space-between;
  justify-items: center;
  cursor: pointer;
}

.day-cell.is-selected {
  background: rgba(21, 101, 192, 0.24);
  box-shadow: inset 0 0 0 1px rgba(144, 202, 249, 0.4);
}

.day-cell.is-muted {
  opacity: 0.28;
}

.day-number {
  font-weight: 700;
}

.day-caption {
  color: var(--success);
  font-size: 0.68rem;
}

.filter-pill {
  min-height: 2.2rem;
  padding: 0 0.75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  white-space: nowrap;
}

.filter-pill input {
  width: 0.9rem;
  height: 0.9rem;
}

.settings-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.settings-book-title {
  display: block;
  font-size: 1.2rem;
  margin: 0.35rem 0 0.55rem;
}

.sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.52);
  backdrop-filter: blur(6px);
  z-index: 30;
}

.sheet {
  position: fixed;
  inset: auto 0 0;
  max-width: 30rem;
  margin: 0 auto;
  border-radius: 1.8rem 1.8rem 0 0;
  background: #2b2b2b;
  z-index: 40;
  display: grid;
  gap: 1rem;
  box-shadow: 0 -24px 48px rgba(0, 0, 0, 0.42);
}

.sheet-form {
  display: grid;
  gap: 0.9rem;
}

.sheet-form label {
  display: grid;
  gap: 0.35rem;
}

.sheet-form span {
  color: var(--muted);
}

.sheet-form input,
.sheet-form select,
.sheet-form textarea {
  width: 100%;
  min-height: 3.2rem;
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: var(--surface-strong);
  color: var(--ink);
}

.sheet-form textarea {
  min-height: 6rem;
  resize: vertical;
}

.inline-check {
  display: flex !important;
  align-items: center;
  gap: 0.75rem;
}

.inline-check input {
  width: 1rem;
  height: 1rem;
}

.primary-button,
.secondary-button {
  min-height: 3rem;
  padding: 0 1rem;
  border-radius: 1rem;
  font-weight: 700;
}

.primary-button {
  background: var(--accent);
  color: white;
}

.secondary-button {
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
  border: 1px solid var(--line);
}

.small-button {
  min-height: 2.5rem;
}

.bottom-nav {
  position: fixed;
  left: 50%;
  bottom: 0.75rem;
  transform: translateX(-50%);
  width: min(calc(100% - 1.2rem), 28.8rem);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.45rem;
  padding: 0.45rem;
  border-radius: 1.4rem;
  background: rgba(39, 39, 39, 0.96);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  z-index: 20;
}

.nav-item {
  min-height: 3.5rem;
  border-radius: 1rem;
  background: transparent;
  color: var(--muted);
  display: grid;
  gap: 0.18rem;
  place-items: center;
}

.nav-item.is-active {
  background: rgba(21, 101, 192, 0.22);
  color: var(--accent-strong);
}

.fab {
  position: fixed;
  right: max(1rem, calc(50% - 14.3rem));
  bottom: 5.35rem;
  width: 4rem;
  height: 4rem;
  border: 0;
  border-radius: 1.2rem;
  background: var(--accent);
  color: white;
  font-size: 2rem;
  font-weight: 700;
  box-shadow: 0 16px 32px rgba(21, 101, 192, 0.35);
  cursor: pointer;
  z-index: 25;
}

.toast {
  position: fixed;
  left: 50%;
  top: 1rem;
  transform: translateX(-50%);
  max-width: min(calc(100% - 2rem), 28rem);
  padding: 0.85rem 1rem;
  border-radius: 1rem;
  background: rgba(22, 22, 22, 0.96);
  color: white;
  box-shadow: var(--shadow);
  z-index: 50;
}

.toast.error {
  background: rgba(144, 54, 54, 0.96);
}

@media (min-width: 48rem) {
  .app-shell {
    width: min(100%, 68rem);
    padding-bottom: 2rem;
  }

  .screen.is-active {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }

  #home-view .forecast-card,
  #home-view .quick-grid,
  #home-view .section-block,
  #timeline-view .calendar-card,
  #timeline-view .button-row,
  #timeline-view .section-block,
  #settings-view .settings-card,
  #settings-view .settings-list,
  #settings-view .settings-metrics,
  #settings-view .section-block,
  #recurring-view .section-header,
  #recurring-view .activity-list {
    grid-column: 1 / -1;
  }

  .top-actions .icon-button {
    min-width: 3rem;
  }

  .bottom-nav {
    position: sticky;
    transform: none;
    left: auto;
    bottom: auto;
    width: 100%;
    margin-top: 1rem;
  }

  .fab {
    position: sticky;
    margin-left: auto;
    right: auto;
    bottom: 1rem;
  }

  .sheet {
    inset: 50% auto auto 50%;
    width: min(calc(100% - 2rem), 30rem);
    transform: translate(-50%, -50%);
    border-radius: 1.8rem;
  }
}