/* UOB MAB Calculator — light default, optional dark (data-theme="dark") */

@import url("https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700&family=Source+Sans+3:wght@400;500;600;700&display=swap");

/* Light theme (default) */
:root {
  color-scheme: light;
  --bg: #f4f1ea;
  --bg-elevated: #ffffff;
  --surface: #ebe6dc;
  --border: rgba(20, 26, 36, 0.1);
  --text: #141a24;
  --muted: #5a616d;
  --accent: #8a6510;
  --accent-soft: rgba(138, 101, 16, 0.12);
  --positive: #0f6b46;
  --shadow: 0 10px 40px rgba(20, 26, 36, 0.08);
  --btn-fg: #fdfcf9;
  --btn-hover-shadow: 0 6px 20px rgba(138, 101, 16, 0.22);
  --gradient-spot-1: rgba(138, 101, 16, 0.09);
  --gradient-spot-2: rgba(55, 85, 140, 0.07);
  --table-stripe: rgba(0, 0, 0, 0.04);
  --hover-file-label: rgba(138, 101, 16, 0.1);
  --toolbar-drag-bg: rgba(138, 101, 16, 0.12);
  --toolbar-drag-border: rgba(138, 101, 16, 0.5);
  --toolbar-drag-ring: rgba(138, 101, 16, 0.22);
  --pill-active-border: rgba(138, 101, 16, 0.42);
  --card-hover-border: rgba(138, 101, 16, 0.38);
  --footer-accent-hover: rgba(138, 101, 16, 0.22);
  --card-shadow: 0 8px 28px rgba(20, 26, 36, 0.07);
  --radius: 14px;
  --radius-sm: 8px;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Source Sans 3", system-ui, sans-serif;
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0c1118;
  --bg-elevated: #141c27;
  --surface: #1a2433;
  --border: rgba(232, 220, 198, 0.12);
  --text: #f2ebe3;
  --muted: #9aa4b2;
  --accent: #c9a227;
  --accent-soft: rgba(201, 162, 39, 0.18);
  --positive: #6ee7b7;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  --btn-fg: #1a1204;
  --btn-hover-shadow: 0 6px 20px rgba(201, 162, 39, 0.35);
  --gradient-spot-1: rgba(201, 162, 39, 0.08);
  --gradient-spot-2: rgba(100, 149, 237, 0.06);
  --table-stripe: rgba(255, 255, 255, 0.03);
  --hover-file-label: rgba(201, 162, 39, 0.06);
  --toolbar-drag-bg: rgba(201, 162, 39, 0.08);
  --toolbar-drag-border: rgba(201, 162, 39, 0.55);
  --toolbar-drag-ring: rgba(201, 162, 39, 0.2);
  --pill-active-border: rgba(201, 162, 39, 0.45);
  --card-hover-border: rgba(201, 162, 39, 0.35);
  --footer-accent-hover: rgba(201, 162, 39, 0.28);
  --card-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, var(--gradient-spot-1), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, var(--gradient-spot-2), transparent 50%),
    var(--bg);
  transition: background-color 0.25s ease, color 0.2s ease;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.app-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 3rem;
}

.app-header {
  position: relative;
  text-align: center;
  padding: 2.25rem 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.75rem;
}

.app-header__actions {
  position: absolute;
  top: 0.5rem;
  right: 0;
}

.theme-toggle-btn {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--muted);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.theme-toggle-btn:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.theme-toggle-btn[aria-pressed="true"] {
  color: var(--accent);
  border-color: var(--pill-active-border);
  background: var(--accent-soft);
}

.app-header h1 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 4vw, 2.35rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  background: none;
  padding: 0;
}

.app-header .tagline {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 42rem;
  margin-inline: auto;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}

.toolbar.is-dragover {
  border-color: var(--toolbar-drag-border);
  background: var(--toolbar-drag-bg);
  box-shadow: 0 0 0 2px var(--toolbar-drag-ring), var(--shadow);
}

.toolbar .drop-hint {
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 500;
}

.toolbar label.file-input-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  color: var(--text);
  transition: border-color 0.15s, background 0.15s;
}

.toolbar label.file-input-label:hover {
  border-color: var(--accent);
  background: var(--hover-file-label);
}

.toolbar input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.toolbar .file-name {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--btn-fg);
  cursor: pointer;
  transition: transform 0.12s, box-shadow 0.12s;
}

.btn:hover {
  box-shadow: var(--btn-hover-shadow);
}

.btn:active {
  transform: translateY(1px);
}

.btn-ghost {
  background: transparent;
  color: var(--accent);
}

.btn-ghost:hover {
  background: var(--accent-soft);
  box-shadow: none;
}

.nav-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.account-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.pill {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.pill:hover {
  color: var(--text);
  border-color: var(--accent);
}

.pill.is-active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--pill-active-border);
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.account-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  text-align: left;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: var(--card-shadow);
}

.account-card__open {
  flex: 1 1 auto;
  width: 100%;
  margin: 0;
  padding: 1.25rem;
  border: none;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
}

.account-card__open:hover {
  background: var(--accent-soft);
}

.account-card__open:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.account-card__slider-block {
  padding: 0 1.25rem 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.account-card__slider-label {
  margin: 0.85rem 0 0;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.account-card__slider-block input[type="range"] {
  width: 100%;
  max-width: 100%;
}

.account-card__slider-output {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent);
}

.account-card:hover {
  border-color: var(--card-hover-border);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.account-card h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  overflow-wrap: anywhere;
  word-break: break-word;
}

.account-card .meta {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.account-card__acct {
  margin: -0.15rem 0 0.35rem !important;
  font-size: 0.82rem !important;
  opacity: 0.92;
}

.account-card .stat {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
}

.account-card .stat-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.account-card .stat-value {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--positive);
}

.empty-overview {
  padding: 2.5rem 1.5rem;
  text-align: center;
  background: var(--bg-elevated);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  color: var(--muted);
}

.detail-panel {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.detail-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
  margin-bottom: 1rem;
}

.detail-head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.detail-head .period {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.detail-head .as-of {
  margin: 0;
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
}

.detail-naming {
  margin: 0 0 1rem;
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.detail-naming__label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.detail-naming__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.65rem;
}

.detail-naming__input {
  flex: 1 1 200px;
  min-width: 0;
  max-width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
}

.detail-naming__input::placeholder {
  color: var(--muted);
  opacity: 0.85;
}

.detail-naming__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.detail-naming__hint {
  margin: 0.65rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.disclosure {
  font-size: 0.92rem;
  color: var(--muted);
  margin: 0 0 1rem;
  padding: 1rem;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}

.about-collapsible {
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elevated);
}

.about-collapsible summary {
  padding: 0.85rem 1.1rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  list-style: none;
}

.about-collapsible summary::-webkit-details-marker {
  display: none;
}

.about-collapsible .about-inner {
  padding: 0 1.1rem 1.1rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.about-collapsible .about-inner p {
  margin: 0 0 0.75rem;
}

.about-collapsible .about-inner p:last-child {
  margin-bottom: 0;
}

#slider-container {
  margin: 1.25rem 0;
  padding: 1rem 1.25rem;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

#slider-container input[type="range"] {
  width: 100%;
  max-width: 480px;
  accent-color: var(--accent);
}

#slider-container p {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

#output-element {
  color: var(--accent) !important;
  font-weight: 600;
}

#visualizer {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 1.25rem;
}

#current-transaction-container h4,
#new-transaction-container h4 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 0 0.65rem;
  color: var(--text);
}

#vis-output-table,
#upcoming-vis-output-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  border-radius: var(--radius-sm);
  overflow: visible;
  border: 1px solid var(--border);
}

#vis-output-table th,
#upcoming-vis-output-table th {
  background: var(--surface);
  color: var(--text);
  padding: 0.65rem 0.5rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

#vis-output-table td,
#upcoming-vis-output-table td {
  padding: 0.55rem 0.5rem;
  border-top: 1px solid var(--border);
  color: var(--text);
}

#vis-output-table .date-cell,
#upcoming-vis-output-table .date-cell {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.5rem;
  vertical-align: top;
  overflow: visible;
  position: relative;
  z-index: 0;
}

#vis-output-table .date-cell:has(.derived-badge:hover, .amended-badge:hover, .derived-badge:focus-visible, .amended-badge:focus-visible),
#upcoming-vis-output-table .date-cell:has(.derived-badge:hover, .amended-badge:hover, .derived-badge:focus-visible, .amended-badge:focus-visible) {
  z-index: 5;
}

.derived-badge,
.amended-badge {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.18rem 0.45rem;
  border-radius: 4px;
  cursor: help;
  white-space: nowrap;
  line-height: 1.2;
  position: relative;
  outline: none;
}

.derived-badge {
  border: 1px solid var(--pill-active-border);
  background: var(--accent-soft);
  color: var(--accent);
}

.amended-badge {
  border: 1px solid rgba(15, 107, 70, 0.45);
  background: rgba(15, 107, 70, 0.12);
  color: var(--positive);
}

html[data-theme="dark"] .amended-badge {
  border-color: rgba(110, 231, 183, 0.45);
  background: rgba(110, 231, 183, 0.12);
}

.derived-badge::after,
.amended-badge::after {
  content: attr(data-tooltip);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 6px);
  transform: translate3d(-50%, 4px, 0);
  max-width: min(288px, 78vw);
  width: max-content;
  padding: 0.5rem 0.65rem;
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: none;
  letter-spacing: normal;
  line-height: 1.4;
  white-space: normal;
  text-align: left;
  color: var(--text);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  z-index: 200;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.05s ease, transform 0.05s ease, visibility 0.05s;
}

.derived-badge:hover::after,
.derived-badge:focus-visible::after,
.amended-badge:hover::after,
.amended-badge:focus-visible::after {
  opacity: 1;
  visibility: visible;
  transform: translate3d(-50%, 0, 0);
}

#vis-output-table tbody tr:nth-child(even) td,
#upcoming-vis-output-table tbody tr:nth-child(even) td {
  background: var(--table-stripe);
}

.editable {
  cursor: pointer;
}

.edit-icon {
  opacity: 0.55;
  margin-left: 0.25rem;
}

footer {
  margin-top: 2.5rem;
  padding: 1.5rem;
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.75rem 1.25rem;
}

footer a {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1rem;
  background: var(--accent-soft);
  border-radius: 999px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
}

footer a:hover {
  background: var(--footer-accent-hover);
  text-decoration: none;
}

@media (max-width: 520px) {
  .app-header {
    padding-top: 3rem;
  }

  .app-header__actions {
    position: absolute;
    top: 0.35rem;
    left: 0;
    right: 0;
    display: flex;
    justify-content: flex-end;
  }

  .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .toolbar .file-name {
    max-width: none;
  }
}