/* ── Utility ── */
.hidden { display: none !important; }
.text-muted { color: var(--color-text-muted); font-size: var(--text-sm); }
.required { color: var(--color-danger); }

/* ── Card ── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-3);
}

.card-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-link {
  font-size: var(--text-sm);
  color: var(--color-primary);
  font-weight: 500;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 10px var(--sp-4);
  border-radius: var(--r-md);
  font-size: var(--text-base);
  font-weight: 500;
  transition: opacity 0.15s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
  white-space: nowrap;
}

.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary   { background: var(--color-primary);  color: white; }
.btn-primary:hover:not(:disabled)   { background: var(--color-primary-dk); }
.btn-secondary { background: var(--color-surface-2); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-success   { background: var(--color-success);  color: white; }
.btn-danger    { background: var(--color-danger);   color: white; }
.btn-warning   { background: var(--color-warning);  color: white; }
.btn-ghost     { background: transparent; color: var(--color-text-muted); padding: var(--sp-2) var(--sp-3); }
.btn-ghost:hover { color: var(--color-text); }
.btn-block     { width: 100%; }
.btn-icon      { padding: 10px; min-width: 40px; }

.btn-sm {
  padding: 6px var(--sp-3);
  font-size: var(--text-sm);
  border-radius: var(--r-sm);
}

.button-group {
  display: flex;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--sp-2);
  border-radius: var(--r-full);
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1.4;
}

.badge-danger   { background: var(--color-expense-lt);  color: var(--color-danger); }
.badge-success  { background: var(--color-income-lt);   color: var(--color-success); }
.badge-warning  { background: var(--color-warning-lt);  color: var(--color-warning); }
.badge-info     { background: var(--color-info-lt);     color: var(--color-info); }
.badge-source   { background: var(--color-surface-2);   color: var(--color-text-muted); }
.badge-income   { background: var(--color-income-lt);   color: var(--color-success); }
.badge-expense  { background: var(--color-expense-lt);  color: var(--color-danger); }
.badge-transfer { background: var(--color-transfer-lt); color: var(--color-transfer); }

/* Bottom-nav review badge */
.bottom-nav-icon .badge {
  position: absolute;
  top: -4px;
  right: -6px;
  padding: 1px 4px;
  min-width: 16px;
  font-size: 9px;
}

/* ── Forms ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.form-input,
.form-select {
  width: 100%;
  padding: 10px var(--sp-3);
  border: 1px solid var(--color-border);
  border-radius: var(--r-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-md);
  transition: border-color 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-lt);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2364748B' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-textarea {
  resize: vertical;
  min-height: 72px;
}

.form-input-sm,
.form-select-sm {
  padding: 7px var(--sp-3);
  font-size: var(--text-sm);
  border-radius: var(--r-sm);
}

.form-error {
  color: var(--color-danger);
  font-size: var(--text-sm);
  padding: var(--sp-2) var(--sp-3);
  background: var(--color-expense-lt);
  border-radius: var(--r-sm);
  border: 1px solid rgba(220,38,38,0.2);
}

.input-with-toggle {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-toggle .form-input {
  padding-right: 44px;
}

.toggle-password {
  position: absolute;
  right: var(--sp-3);
  font-size: 16px;
  color: var(--color-text-muted);
  padding: 0;
}

/* ── Toast ── */
.toast {
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--r-lg);
  font-size: var(--text-sm);
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  pointer-events: all;
  transform: translateY(8px);
  opacity: 0;
  transition: transform 0.25s ease, opacity 0.25s ease;
  border-left: 4px solid transparent;
}

.toast-show {
  transform: translateY(0);
  opacity: 1;
}

.toast-success { background: var(--color-income-lt);  color: var(--color-success); border-left-color: var(--color-success); }
.toast-error   { background: var(--color-expense-lt); color: var(--color-danger);  border-left-color: var(--color-danger); }
.toast-warning { background: var(--color-warning-lt); color: var(--color-warning); border-left-color: var(--color-warning); }
.toast-info    { background: var(--color-info-lt);    color: var(--color-info);    border-left-color: var(--color-info); }

/* ── Modal ── */
.modal {
  background: var(--color-surface);
  border-radius: var(--r-xl) var(--r-xl) 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 92dvh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) var(--sp-5) var(--sp-3);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-surface);
  z-index: 1;
}

.modal-title {
  font-size: var(--text-lg);
  font-weight: 600;
}

.modal-close {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1;
}

.modal-body {
  padding: var(--sp-4) var(--sp-5);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  flex: 1;
  overflow-y: auto;
}

.modal-footer {
  display: flex;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-5) var(--sp-5);
  border-top: 1px solid var(--color-border);
}

.modal-footer .btn { flex: 1; }

/* ── Transaction Card ── */
.tx-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  cursor: pointer;
  border-radius: var(--r-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  transition: background 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.tx-card:not(:last-child) { margin-bottom: var(--sp-2); }
.tx-card:active { background: var(--color-surface-2); }

.tx-card-left {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex: 1;
  min-width: 0;
}

.tx-icon { font-size: 18px; flex-shrink: 0; }

.tx-info { flex: 1; min-width: 0; }

.tx-label {
  font-size: var(--text-base);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tx-meta {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tx-amount {
  font-size: var(--text-base);
  font-weight: 600;
  flex-shrink: 0;
  text-align: right;
}

/* Amount color helpers */
.amount-income   { color: var(--color-income); }
.amount-expense  { color: var(--color-expense); }
.amount-transfer { color: var(--color-transfer); }

/* ── Loading / Skeleton ── */
.loading-container {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  padding: var(--sp-4);
}

.skeleton {
  background: var(--color-border);
  border-radius: var(--r-md);
  animation: shimmer 1.4s infinite;
  background: linear-gradient(
    90deg,
    var(--color-border) 25%,
    var(--color-surface-2) 50%,
    var(--color-border) 75%
  );
  background-size: 200% 100%;
}

.skeleton-card { height: 68px; }

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.spinner-container {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-8);
}

.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* ── Empty / Error States ── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--sp-8) var(--sp-4);
  gap: var(--sp-3);
  color: var(--color-text-muted);
  text-align: center;
  font-size: var(--text-base);
}

.empty-icon { font-size: 40px; }

.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-8) var(--sp-4);
  color: var(--color-text-muted);
  text-align: center;
}