:root {
  --bg-deep: #2b323b;
  --panel-linen: #d7d7ce;
  --chrome-top: #8e9cad;
  --chrome-bottom: #5a6878;
  --card-top: #f4f4ea;
  --card-bottom: #c8c8bc;
  --ink: #1e252d;
  --muted: #5a6472;
  --blue-top: #6fb3f1;
  --blue-bottom: #2c6eb0;
  --silver-top: #e5e7ea;
  --silver-bottom: #a6adb8;
  --danger-top: #e37a71;
  --danger-bottom: #9f3d39;
  --green: #507f46;
  --red: #8a3c3c;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 9px;
  --shadow-depth: 0 12px 26px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Helvetica Neue", "Helvetica", Arial, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(44, 59, 74, 0.85), rgba(24, 33, 44, 0.92)),
    url("assets/stardust.png");
  background-attachment: fixed;
}

.grain-overlay {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.16;
  background: url("assets/noise-lines.png");
}

.app-shell {
  position: relative;
  z-index: 2;
  max-width: 1500px;
  margin: 22px auto;
  padding: 0 16px 20px;
}

.topbar {
  border-radius: var(--radius-lg);
  padding: 14px 22px;
  color: #f4f8ff;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.55);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0) 26%),
    linear-gradient(180deg, var(--chrome-top), var(--chrome-bottom)),
    url("assets/brushed-alu-dark.png");
  border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.46),
    inset 0 -2px 4px rgba(0, 0, 0, 0.26),
    var(--shadow-depth);
}

.topbar-title {
  font-size: clamp(1.25rem, 2vw, 1.9rem);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.topbar-subtitle {
  margin-top: 2px;
  font-size: 0.9rem;
  color: #d8e5f8;
}

.layout {
  margin-top: 16px;
  display: grid;
  gap: 14px;
  grid-template-columns: minmax(320px, 430px) 1fr;
}

.control-column,
.calendar-column {
  display: grid;
  gap: 14px;
  align-content: start;
}

.card {
  border-radius: var(--radius-md);
  padding: 14px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0) 24%),
    linear-gradient(180deg, var(--card-top), var(--card-bottom)),
    url("assets/low-contrast-linen.png");
  border: 1px solid rgba(39, 48, 60, 0.48);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    inset 0 -1px 0 rgba(0, 0, 0, 0.22),
    0 7px 18px rgba(0, 0, 0, 0.26);
}

.card-balance {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0) 24%),
    linear-gradient(180deg, #f5efe3, #c8b59a),
    url("assets/low-contrast-linen.png");
}

h2 {
  margin: 0 0 10px;
  font-size: 1.04rem;
  font-weight: 700;
  color: #253341;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.62);
}

label {
  display: block;
  margin: 8px 0 4px;
  font-size: 0.84rem;
  font-weight: 600;
  color: #364657;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid #68788c;
  padding: 9px 10px;
  color: #1a2734;
  background:
    linear-gradient(180deg, #fefefe, #dce3ea 80%);
  box-shadow:
    inset 0 2px 3px rgba(0, 0, 0, 0.18),
    0 1px 0 rgba(255, 255, 255, 0.8);
}

input:focus,
select:focus,
button:focus-visible {
  outline: 2px solid #5f99d5;
  outline-offset: 1px;
}

.field-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn {
  margin-top: 10px;
  border: 1px solid rgba(20, 28, 39, 0.52);
  border-radius: 10px;
  padding: 8px 11px;
  font-weight: 700;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.45);
  cursor: pointer;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.6),
    inset 0 -2px 2px rgba(0, 0, 0, 0.22),
    0 2px 3px rgba(0, 0, 0, 0.2);
  transition: transform 120ms ease, filter 120ms ease;
}

.btn:active {
  transform: translateY(1px);
  box-shadow:
    inset 0 2px 3px rgba(0, 0, 0, 0.28),
    0 1px 2px rgba(0, 0, 0, 0.2);
}

.btn-primary {
  color: #f4fbff;
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.44);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0) 28%),
    linear-gradient(180deg, var(--blue-top), var(--blue-bottom));
}

.btn-secondary {
  color: #1f2a35;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0) 28%),
    linear-gradient(180deg, var(--silver-top), var(--silver-bottom));
}

.btn-danger {
  color: #fff1f1;
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.42);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.36), rgba(255, 255, 255, 0) 28%),
    linear-gradient(180deg, var(--danger-top), var(--danger-bottom));
}

.row-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.hidden {
  display: none;
}

.expense-list {
  display: grid;
  gap: 8px;
  max-height: 300px;
  overflow: auto;
  padding-right: 4px;
}

.expense-item {
  border-radius: 10px;
  border: 1px solid rgba(65, 75, 89, 0.45);
  background: linear-gradient(180deg, #f6f7f2, #d0d3ca);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
  padding: 8px;
}

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

.expense-name {
  font-weight: 700;
  color: #26303c;
}

.expense-meta {
  margin-top: 3px;
  font-size: 0.81rem;
  color: #3f4e5d;
}

.expense-actions {
  display: flex;
  gap: 6px;
}

.expense-actions .btn {
  margin-top: 0;
  padding: 5px 8px;
  font-size: 0.8rem;
}

.toggle {
  width: 18px;
  height: 18px;
}

.status-message {
  margin-top: 9px;
  min-height: 1.2em;
  font-size: 0.82rem;
  color: #2c4f78;
}

.card-calendar {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.37), rgba(255, 255, 255, 0) 30%),
    linear-gradient(180deg, #cad2da, #9ca7b3),
    url("assets/brushed-alu-dark.png");
}

.calendar-toolbar {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

#calendarTitle {
  text-align: center;
  margin: 0;
  color: #1b2634;
}

.weekday-row {
  display: grid;
  grid-template-columns: repeat(7, minmax(90px, 1fr));
  gap: 7px;
  margin-bottom: 7px;
}

.weekday-cell {
  text-align: center;
  padding: 6px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  color: #eaf5ff;
  background: linear-gradient(180deg, #5f7fa4, #365372);
  border: 1px solid rgba(15, 25, 39, 0.55);
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.5);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(90px, 1fr));
  gap: 7px;
}

.day-cell {
  min-height: 100px;
  border-radius: 11px;
  border: 1px solid rgba(42, 54, 68, 0.45);
  padding: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.58), rgba(255, 255, 255, 0) 30%),
    linear-gradient(180deg, #f0f2f4, #c3c9d0);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.68);
  display: grid;
  gap: 5px;
  align-content: start;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.day-cell:hover {
  transform: translateY(-1px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75), 0 3px 8px rgba(0, 0, 0, 0.2);
}

.day-cell.today {
  border-color: #0f5998;
  box-shadow:
    0 0 0 2px rgba(43, 116, 187, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.65);
}

.day-cell.other-month {
  opacity: 0.56;
}

.day-cell.selected {
  border-color: #346fa8;
  box-shadow:
    0 0 0 2px rgba(89, 145, 196, 0.36),
    inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.day-number {
  font-weight: 700;
  font-size: 0.92rem;
  color: #20303f;
}

.day-balance {
  font-size: 0.84rem;
  font-weight: 700;
  color: #1d2a35;
}

.day-cell.balance-positive .day-balance {
  color: var(--green);
}

.day-cell.balance-negative .day-balance {
  color: var(--red);
}

.day-cell.balance-na .day-balance {
  color: #586477;
}

.selected-day-title {
  margin: 0;
  font-weight: 700;
}

.selected-day-balance {
  margin: 6px 0 8px;
  font-size: 1rem;
  font-weight: 700;
}

.selected-day-events {
  display: grid;
  gap: 7px;
}

.event-item {
  display: flex;
  justify-content: space-between;
  border-radius: 9px;
  border: 1px solid rgba(57, 69, 84, 0.3);
  background: linear-gradient(180deg, #f2f4f5, #d8dce1);
  padding: 7px 9px;
  font-size: 0.86rem;
}

.event-amount.positive {
  color: var(--green);
  font-weight: 700;
}

.event-amount.negative {
  color: var(--red);
  font-weight: 700;
}

@media (max-width: 1080px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .weekday-row,
  .calendar-grid {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .app-shell {
    margin: 10px auto;
    padding: 0 8px 10px;
  }

  .calendar-toolbar {
    grid-template-columns: auto 1fr auto;
  }

  #goTodayBtn {
    grid-column: 1 / -1;
    width: 100%;
  }

  .day-cell {
    min-height: 82px;
    padding: 6px;
  }

  .day-balance {
    font-size: 0.75rem;
  }

  .field-grid {
    grid-template-columns: 1fr;
  }
}