* {
  box-sizing: border-box;
}

:root {
  color-scheme: light dark;
  --tc-bg: #f0fdfa;
  --tc-text: #0f172a;
  --tc-heading: #020617;
  --tc-muted: #475569;
  --tc-accent: #5f7362;
  --tc-accent-dark: #0f766e;
  --tc-banner-from: #134e4a;
  --tc-banner-to: #14b8a6;
  --tc-surface: #ffffff;
  --tc-surface-muted: #f8fafc;
  --tc-border: #e2e8f0;
  --tc-input-border: #cbd5e1;
  --tc-input-bg: #ffffff;
  --tc-secondary-bg: #ffffff;
  --tc-secondary-hover: #f0fdfa;
  --tc-secondary-border: #99f6e4;
  --tc-shadow: rgba(15, 23, 42, 0.08);
  --tc-shadow-soft: rgba(15, 23, 42, 0.06);
  --tc-good-hover-bg: #ecfdf5;
  --tc-good-media-bg: #ecfdf5;
  --tc-placeholder: #94a3b8;
}

@media (prefers-color-scheme: dark) {
  :root {
    --tc-bg: #051210;
    --tc-text: #e2e8f0;
    --tc-heading: #f8fafc;
    --tc-muted: #94a3b8;
    --tc-accent: #2dd4bf;
    --tc-accent-dark: #14b8a6;
    --tc-banner-from: #0f2925;
    --tc-banner-to: #0f766e;
    --tc-surface: #151d2e;
    --tc-surface-muted: #1a2438;
    --tc-border: #2a3548;
    --tc-input-border: #334155;
    --tc-input-bg: #1a2438;
    --tc-secondary-bg: #1a2438;
    --tc-secondary-hover: #243048;
    --tc-secondary-border: #2dd4bf;
    --tc-shadow: rgba(0, 0, 0, 0.35);
    --tc-shadow-soft: rgba(0, 0, 0, 0.28);
    --tc-good-hover-bg: rgba(45, 212, 191, 0.12);
    --tc-good-media-bg: rgba(20, 184, 166, 0.14);
    --tc-placeholder: #64748b;
  }
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, sans-serif;
  background: var(--tc-bg);
  color: var(--tc-text);
}

h1,
h2,
h3,
strong {
  color: var(--tc-heading);
}

.login-wrap {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  background: var(--tc-surface);
  color: var(--tc-text);
  border-radius: 14px;
  padding: 20px;
  box-shadow: 0 8px 24px var(--tc-shadow);
  border: 1px solid var(--tc-border);
}

.login-card {
  width: min(480px, 100%);
}

.subtitle {
  color: var(--tc-muted);
  line-height: 1.5;
}

button:not(.tc-good-card) {
  background: var(--tc-accent);
  color: #fff;
  border: 1px solid var(--tc-accent);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
  cursor: pointer;
}

button:not(.tc-good-card):hover {
  background: var(--tc-accent-dark);
}

button.secondary {
  background: var(--tc-secondary-bg);
  color: var(--tc-accent-dark);
  border-color: var(--tc-secondary-border);
}

button.secondary:hover {
  background: var(--tc-secondary-hover);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

input,
select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--tc-input-border);
  border-radius: 8px;
  font-size: 14px;
  background: var(--tc-input-bg);
  color: var(--tc-text);
}

.tc-layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px;
}

.tc-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 20px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--tc-banner-from), var(--tc-banner-to));
  color: #fff;
  margin-bottom: 16px;
}

.tc-header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.tc-brand-logo {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.35);
  padding: 4px;
  box-sizing: border-box;
}

.tc-header-brand-text {
  min-width: 0;
}

.tc-header h1 {
  margin: 0;
  font-size: 1.35rem;
  color: #fff;
}

.login-card .tc-brand-logo {
  display: block;
  width: 72px;
  height: 72px;
  margin: 0 auto 12px;
}

.tc-tagline {
  margin: 4px 0 0;
  opacity: 0.9;
  font-size: 0.9rem;
}

.tc-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.tc-header-actions .tensor-branch-select,
.tc-header-actions .tensor-branch-readonly {
  border-color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.12);
  color: #ecfdf5;
}

.tc-header-actions .tensor-branch-select option {
  color: #0f172a;
  background: #fff;
}

.tc-prefs-shortcut {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  color: #ecfdf5;
  background: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.tc-prefs-shortcut:hover {
  background: rgba(255, 255, 255, 0.22);
}

.tc-prefs-main {
  display: grid;
  gap: 16px;
  max-width: 640px;
}

.tc-prefs-grid {
  display: grid;
  gap: 14px;
}

.tc-pref-field {
  display: grid;
  gap: 6px;
}

.tc-pref-field span {
  font-weight: 600;
  font-size: 0.9rem;
}

.tc-prefs-actions {
  margin-top: 8px;
  position: sticky;
  bottom: 0;
  z-index: 2;
  padding: 12px 0 4px;
  background: linear-gradient(to top, var(--tc-bg) 70%, transparent);
}

.tc-prefs-save {
  width: 100%;
  min-height: 44px;
  font-weight: 700;
  touch-action: manipulation;
  transition: transform 0.08s ease, background 0.12s ease, border-color 0.12s ease, opacity 0.12s ease;
}

.tc-prefs-save:active:not(:disabled) {
  transform: scale(0.98);
}

.tc-prefs-save.is-saving {
  opacity: 0.92;
  cursor: wait;
}

.tc-prefs-save.is-saved {
  background: #047857;
  border-color: #047857;
}

.tc-prefs-save.is-saved:hover {
  background: #065f46;
  border-color: #065f46;
}

#tcPrefsMessage.tc-prefs-msg-ok {
  color: #047857;
  font-weight: 600;
}

#tcPrefsMessage.tc-prefs-msg-error {
  color: #b91c1c;
  font-weight: 600;
}

.tc-prefs-subheading {
  margin: 1rem 0 0.35rem;
  font-size: 1rem;
}

.tc-prefs-grid-spaced {
  margin-top: 1.25rem;
}

.tc-payment-methods-list {
  display: grid;
  gap: 10px;
  margin: 0.75rem 0;
}

.tc-payment-method-row {
  display: grid;
  grid-template-columns: 1fr 1.2fr auto;
  gap: 8px;
  align-items: end;
  padding: 10px;
  border: 1px solid var(--tc-border);
  border-radius: 10px;
  background: var(--tc-surface-muted);
}

@media (max-width: 640px) {
  .tc-payment-method-row {
    grid-template-columns: 1fr;
  }
}

.tc-payment-method-row label {
  display: grid;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
}

.tc-payment-method-row input,
.tc-payment-method-row select {
  font: inherit;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--tc-input-border);
  border-radius: 6px;
  background: var(--tc-input-bg);
  color: var(--tc-text);
}

.tc-add-payment-method {
  margin-bottom: 0.5rem;
}

.tc-operators-list {
  display: grid;
  gap: 10px;
  margin: 0.75rem 0;
}

.tc-operator-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: end;
  padding: 10px;
  border: 1px solid var(--tc-border);
  border-radius: 10px;
  background: var(--tc-surface-muted);
}

.tc-operator-row label {
  display: grid;
  gap: 4px;
  font-size: 0.85rem;
  font-weight: 600;
}

.tc-operator-row input {
  font: inherit;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--tc-input-border);
  border-radius: 6px;
  background: var(--tc-input-bg);
  color: var(--tc-text);
}

.tc-add-operator {
  margin-bottom: 1rem;
}

.hidden {
  display: none !important;
}

.tc-session-meta {
  font-size: 0.8rem;
  opacity: 0.95;
}

.tc-link-finance {
  color: #ccfbf1;
  font-size: 0.85rem;
  text-decoration: none;
}

.tc-link-finance:hover {
  color: #fff;
  text-decoration: underline;
}

.tc-finance-launcher {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  min-width: 2.35rem;
  min-height: 2.35rem;
  padding: 0;
  overflow: hidden;
  color: transparent;
  font-size: 0;
  line-height: 0;
  text-decoration: none;
  background-color: rgba(255, 255, 255, 0.18);
  background-image: url("tensorFinance-icon-removebg.png?v=tf1");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 24px 24px;
  border: 1px solid rgba(255, 255, 255, 0.46);
  border-radius: 10px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.32), 0 8px 18px rgba(15, 23, 42, 0.12);
  -webkit-backdrop-filter: blur(10px) saturate(145%);
  backdrop-filter: blur(10px) saturate(145%);
}

.tc-finance-launcher:hover {
  background-color: rgba(255, 255, 255, 0.28);
}

.tc-finance-launcher:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.tc-main {
  display: grid;
  grid-template-columns: 1fr minmax(280px, 360px);
  gap: 16px;
}

@media (max-width: 900px) {
  .tc-main {
    grid-template-columns: 1fr;
  }
}

.tc-panel {
  background: var(--tc-surface);
  color: var(--tc-text);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 4px 16px var(--tc-shadow-soft);
  border: 1px solid var(--tc-border);
}

.tc-panel label {
  color: var(--tc-text);
}

.tc-panel input,
.tc-panel select {
  color: var(--tc-text);
  background: var(--tc-input-bg);
}

.tc-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.tc-toolbar input {
  flex: 1;
}

.tc-muted {
  color: var(--tc-muted);
  font-size: 0.9rem;
}

.tc-goods-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  max-height: 52vh;
  overflow: auto;
}

.tc-good-card {
  border: 1px solid var(--tc-border);
  border-radius: 10px;
  padding: 10px;
  cursor: pointer;
  text-align: left;
  background: var(--tc-surface-muted);
  color: var(--tc-text);
  display: flex;
  flex-direction: column;
  gap: 6px;
  font: inherit;
  line-height: 1.35;
}

.tc-good-card strong {
  color: var(--tc-heading);
  font-weight: 600;
}

.tc-good-media {
  width: 100%;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--tc-good-media-bg);
  overflow: hidden;
}

.tc-good-img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 72px;
  object-fit: contain;
}

.tc-good-img-placeholder {
  font-size: 1.5rem;
  color: var(--tc-placeholder);
  line-height: 1;
}

.tc-good-card:hover {
  border-color: var(--tc-accent);
  background: var(--tc-good-hover-bg);
  color: var(--tc-text);
}

.tc-good-code {
  font-size: 0.75rem;
  color: var(--tc-muted);
}

.tc-good-price {
  font-weight: 700;
  margin-top: 6px;
}

.tc-cart-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.tc-cart-table th,
.tc-cart-table td {
  padding: 6px 4px;
  border-bottom: 1px solid var(--tc-border);
  text-align: left;
  color: var(--tc-text);
}

.tc-cart-table th {
  color: var(--tc-heading);
}

.tc-cart-table input[type="number"] {
  width: 4rem;
}

.tc-checkout {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.tc-total-breakdown {
  display: grid;
  gap: 4px;
}

.tc-total-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 1.1rem;
}

.tc-total-row.tc-total-sub {
  font-size: 0.95rem;
  color: var(--tc-muted);
}

.tc-pref-check {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-direction: row;
}

.tc-pref-check input[type="checkbox"] {
  width: auto;
  margin: 0;
}

.tc-recent {
  margin-top: 16px;
}

.tc-recent-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tc-recent-list li {
  padding: 8px 0;
  border-bottom: 1px solid var(--tc-border);
  font-size: 0.9rem;
  color: var(--tc-text);
}

.tc-recent-item {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.tc-recent-item-body {
  flex: 1;
  min-width: 0;
}

.tc-btn-print-receipt {
  flex-shrink: 0;
  font-size: 0.8rem;
  padding: 6px 10px;
  white-space: nowrap;
}

.tc-total-row strong {
  color: var(--tc-heading);
}