:root {
  --bg: #0a0e0c;
  --bg-elevated: #101512;
  --border: #1f2b26;
  --border-strong: #2c3d36;
  --green: #4ade80;
  --green-dim: #1f6b45;
  --red: #f87171;
  --amber: #fbbf24;
  --text: #d8f0e4;
  --text-dim: #7a9086;
  --text-muted: #45564e;
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Consolas, monospace;
  --radius: 4px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  -webkit-font-smoothing: antialiased;
}

body {
  padding: 12px 12px calc(100px + env(safe-area-inset-bottom, 0px));
  max-width: 480px;
  margin: 0 auto;
}

.hidden {
  display: none !important;
}

/* ---------- header ---------- */

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 2px 14px;
}

.app-header .title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 0.08em;
  font-weight: 600;
  text-transform: uppercase;
}

.app-header .title svg {
  width: 16px;
  height: 16px;
  stroke: var(--green);
}

.app-header .sys-tag {
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px 7px;
}

/* ---------- tab bar ---------- */

.tabbar {
  display: flex;
  gap: 4px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3px;
  margin-bottom: 14px;
}

.tabbar button {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 0;
  border-radius: 2px;
}

.tabbar button.active {
  background: var(--border);
  color: var(--text);
}

/* ---------- bracket frame ---------- */

.frame {
  position: relative;
  background: var(--bg-elevated);
  border-radius: 6px;
  padding: 16px;
  margin-bottom: 12px;
}

.frame::before,
.frame::after,
.frame .corner-tl,
.frame .corner-tr {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
}

.frame::before {
  top: 6px;
  left: 6px;
  border-top: 2px solid var(--green);
  border-left: 2px solid var(--green);
}

.frame::after {
  bottom: 6px;
  right: 6px;
  border-bottom: 2px solid var(--green);
  border-right: 2px solid var(--green);
}

.frame .corner-tl {
  top: 6px;
  right: 6px;
  border-top: 2px solid var(--green);
  border-right: 2px solid var(--green);
}

.frame .corner-tr {
  bottom: 6px;
  left: 6px;
  border-bottom: 2px solid var(--green);
  border-left: 2px solid var(--green);
}

/* ---------- gauge ---------- */

.gauge {
  position: relative;
  width: 150px;
  height: 150px;
  margin: 4px auto 16px;
}

.gauge-ring {
  width: 150px;
  height: 150px;
  border-radius: 50%;
}

.gauge-hole {
  position: absolute;
  top: 14px;
  left: 14px;
  width: 122px;
  height: 122px;
  border-radius: 50%;
  background: var(--bg-elevated);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.gauge-hole .value {
  font-size: 20px;
  font-weight: 600;
}

.gauge-hole .label {
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 2px;
}

/* ---------- metric row ---------- */

.metrics {
  display: flex;
  justify-content: space-around;
  padding-top: 12px;
  margin-top: 4px;
  border-top: 1px dashed var(--border);
  text-align: center;
}

.metrics .metric .value {
  font-size: 14px;
  font-weight: 600;
}

.metrics .metric .label {
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 2px;
}

/* ---------- data rows (payments / debts list) ---------- */

.row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
}

.row:last-child {
  border-bottom: none;
}

.row .left p,
.row .right p {
  margin: 0;
}

.row .name {
  font-size: 12px;
  letter-spacing: 0.03em;
}

.row .sub {
  font-size: 9px;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-top: 2px !important;
}

.row .right {
  text-align: right;
}

.row .amount {
  font-size: 12px;
}

.tag {
  font-size: 9px;
  letter-spacing: 0.05em;
  margin-top: 2px !important;
}

.tag.ok { color: var(--green); }
.tag.pending { color: var(--red); }

.row.clickable {
  cursor: pointer;
}

.row-del {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1;
  padding: 0 0 0 10px;
  cursor: pointer;
}

.row-del:active {
  color: var(--red);
}

.empty-state {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-align: center;
  padding: 24px 0;
}

/* ---------- buttons ---------- */

.btn {
  width: 100%;
  border-radius: 2px;
  padding: 11px;
  border: 1px solid var(--green);
  background: transparent;
  color: var(--green);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}

.btn:active {
  background: var(--green-dim);
}

.btn.secondary {
  border-color: var(--border-strong);
  color: var(--text-dim);
}

.btn.danger {
  border-color: var(--red);
  color: var(--red);
}

.btn-row {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.btn-row .btn {
  width: auto;
  flex: 1;
}

/* ---------- forms ---------- */

.field {
  margin-bottom: 10px;
}

.field label {
  display: block;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 2px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 16px;
  padding: 9px 10px;
  touch-action: manipulation;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--green);
}

.segmented {
  display: flex;
  gap: 6px;
}

.segmented button {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 9px 0;
  border-radius: 2px;
}

.segmented button.active {
  border-color: var(--green);
  color: var(--green);
}

/* ---------- panel (add form slide-down) ---------- */

.panel {
  margin-bottom: 12px;
}

/* ---------- fab ---------- */

.fab-wrap {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, var(--bg) 60%, transparent);
  padding: 20px 12px calc(14px + env(safe-area-inset-bottom, 0px));
  z-index: 40;
}

.fab-wrap .inner {
  max-width: 456px;
  margin: 0 auto;
}

/* ---------- settings ---------- */

.setting-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
}

.setting-row .label {
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-dim);
}

/* ---------- toast ---------- */

#toast {
  position: fixed;
  left: 50%;
  bottom: 90px;
  transform: translateX(-50%);
  background: var(--bg-elevated);
  border: 1px solid var(--green);
  color: var(--green);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 2px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease;
  z-index: 50;
}

#toast.show {
  opacity: 1;
}