:root {
  --text: #4b5563;
  --text-strong: #111827;
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #d1d5db;
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --accent-strong: #1d4ed8;
  --danger: #b91c1c;
  --shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
  --radius: 14px;
  --sans: 'Segoe UI', system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
}

button,
select {
  font: inherit;
}

.hidden {
  display: none !important;
}

.app-shell {
  min-height: 100svh;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 20px 0;
}

.app-header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.app-header h1 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--text-strong);
  letter-spacing: 0.08em;
}

.settings-button {
  flex-shrink: 0;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text-strong);
  font-weight: 600;
  cursor: pointer;
}

.settings-button:hover {
  background: #f3f4f6;
}

.app-main {
  flex: 1;
  padding: 20px;
}

.tab-bar {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.tab-button {
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 12px 12px 0 0;
  background: #eef2f7;
  color: var(--text-strong);
  padding: 12px 16px;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
}

.tab-button.active {
  background: var(--surface);
  color: var(--accent-strong);
  box-shadow: inset 0 -3px 0 var(--accent);
}

.clients-tab,
.orders-tab {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-height: calc(100svh - 180px);
}

.date-navigator {
  display: grid;
  grid-template-columns: 48px 1fr 48px;
  align-items: center;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #f9fafb;
}

.date-arrow {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text-strong);
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
}

.date-label {
  margin: 0;
  text-align: center;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-strong);
}

.date-label-today {
  font-weight: 800;
}

.status-message {
  margin: 0;
  text-align: center;
  color: var(--text);
}

.status-message.error {
  color: var(--danger);
}

.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}

.client-button,
.action-button,
.primary-button,
.secondary-button {
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.client-button {
  min-height: 56px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-strong);
  font-weight: 600;
  text-align: center;
}

.client-button.selected,
.action-button.selected {
  border-color: var(--accent-strong);
  background: var(--accent-soft);
  color: var(--accent-strong);
  box-shadow: inset 0 0 0 1px var(--accent-strong);
}

.bottom-actions {
  margin-top: auto;
  display: grid;
  gap: 12px;
}

.action-button {
  min-height: 56px;
  border: 1px solid var(--border);
  background: #f3f4f6;
  color: var(--text-strong);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.placeholder-message {
  margin: 0;
  padding: 48px 16px;
  text-align: center;
  color: var(--text);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

.orders-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.order-button {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  text-align: left;
  cursor: pointer;
}

.order-button.is-payed {
  background: #f0fdf4;
  border-color: #86efac;
  cursor: default;
}

.order-button:disabled {
  opacity: 1;
}

.order-button-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.order-button-name {
  color: var(--text-strong);
  font-size: 1rem;
}

.order-button-drink {
  color: var(--text);
  font-size: 0.95rem;
}

.order-button-status {
  flex-shrink: 0;
  padding: 6px 10px;
  border-radius: 999px;
  background: #fef3c7;
  color: #92400e;
  font-size: 0.8rem;
  font-weight: 700;
}

.order-button.is-payed .order-button-status {
  background: #dcfce7;
  color: #166534;
}

.settings-modal {
  width: min(100%, 640px);
  max-height: min(90svh, 720px);
  display: flex;
  flex-direction: column;
}

.settings-help {
  margin: 0 0 12px;
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.4;
}

.settings-help code {
  font-size: 0.85em;
  background: #f3f4f6;
  padding: 1px 5px;
  border-radius: 4px;
}

.settings-json {
  width: 100%;
  min-height: 320px;
  flex: 1;
  resize: vertical;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  font-family: ui-monospace, 'Cascadia Code', Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--text-strong);
  background: #f9fafb;
}

.modal-panel {
  width: min(100%, 420px);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.selection-bar {
  position: sticky;
  bottom: 0;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: #eff6ff;
  color: var(--text-strong);
}

.order-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  background: #f9fafb;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.order-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.order-panel-label {
  margin: 0 0 4px;
  font-size: 0.9rem;
  color: var(--text);
}

.order-panel-client {
  margin: 0;
  font-size: 1.25rem;
  color: var(--text-strong);
}

.order-category {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 4px;
}

.order-category + .order-category {
  border-top: 1px solid var(--border);
  padding-top: 20px;
}

.order-category-title {
  margin: 0;
  font-size: 1.1rem;
  color: var(--text-strong);
  letter-spacing: 0.03em;
}

.coffee-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.coffee-options-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-strong);
}

.choice-label {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

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

.choice-grid-compact {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.choice-button {
  min-height: 52px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text-strong);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
}

.choice-button.selected {
  border-color: var(--accent-strong);
  background: var(--accent-soft);
  color: var(--accent-strong);
  box-shadow: inset 0 0 0 1px var(--accent-strong);
}

.choice-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

@media (min-width: 480px) {
  .choice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .choice-grid-compact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .choice-grid-compact {
    grid-template-columns: 1fr;
  }
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: grid;
  place-items: center;
  padding: 20px;
  z-index: 100;
}

.modal-panel h2 {
  margin: 0 0 16px;
  color: var(--text-strong);
}

.field-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-strong);
}

.select-input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0 12px;
  background: var(--surface);
  color: var(--text-strong);
}

.text-input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0 12px;
  background: var(--surface);
  color: var(--text-strong);
}

.other-diver-modal {
  width: min(100%, 560px);
  max-height: min(92svh, 820px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.modal-backdrop:has(.other-diver-modal) {
  align-items: center;
  padding: 16px;
}

.autocomplete-field {
  position: relative;
}

.autocomplete-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  max-height: 140px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.autocomplete-item {
  width: 100%;
  min-height: 44px;
  padding: 12px 14px;
  border: none;
  border-bottom: 1px solid #eef2f7;
  background: transparent;
  color: var(--text-strong);
  text-align: left;
  font-weight: 600;
  cursor: pointer;
}

.autocomplete-item:last-child {
  border-bottom: none;
}

.autocomplete-item.selected,
.autocomplete-item:hover {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.autocomplete-empty {
  padding: 12px 14px;
  color: var(--text);
  text-align: center;
}

.on-screen-keyboard-wrap {
  margin-top: 4px;
}

.keyboard-label {
  margin: 0 0 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

.on-screen-keyboard {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.keyboard-row {
  display: grid;
  gap: 6px;
}

.keyboard-row-10 {
  grid-template-columns: repeat(10, minmax(0, 1fr));
}

.keyboard-row-9 {
  grid-template-columns: repeat(9, minmax(0, 1fr));
}

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

.keyboard-row-actions {
  grid-template-columns: 2fr 1fr 1fr;
}

.keyboard-key {
  min-height: 44px;
  padding: 0 4px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #f3f4f6;
  color: var(--text-strong);
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  touch-action: manipulation;
}

.keyboard-key:active {
  background: #e5e7eb;
  transform: scale(0.97);
}

.keyboard-key-wide {
  font-size: 0.8rem;
}

.keyboard-key-action {
  background: #e5e7eb;
}

.other-diver-actions {
  position: sticky;
  bottom: 0;
  margin-top: auto;
  padding-top: 8px;
  background: var(--surface);
}

@media (max-width: 640px) {
  .modal-backdrop:has(.other-diver-modal) {
    align-items: flex-end;
    padding: 0;
  }

  .other-diver-modal {
    width: 100%;
    max-height: 96svh;
    border-radius: 16px 16px 0 0;
    padding: 16px 16px 12px;
  }

  .autocomplete-list {
    max-height: 110px;
  }

  .keyboard-key {
    min-height: 40px;
    font-size: 0.75rem;
  }

  .other-diver-actions {
    flex-direction: column-reverse;
  }

  .other-diver-actions .primary-button,
  .other-diver-actions .secondary-button {
    width: 100%;
    min-height: 48px;
  }
}

@media (min-width: 641px) and (max-width: 1024px) {
  .other-diver-modal {
    width: min(100%, 520px);
  }

  .keyboard-key {
    min-height: 48px;
    font-size: 0.9rem;
  }
}

.password-input {
  width: 100%;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0 12px;
  background: var(--surface);
  color: var(--text-strong);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}

.primary-button,
.secondary-button {
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--border);
}

.primary-button {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.primary-button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.secondary-button {
  background: var(--surface);
  color: var(--text-strong);
}

@media (max-width: 640px) {
  .app-header,
  .app-main,
  .selection-bar {
    padding-left: 16px;
    padding-right: 16px;
  }

  .date-navigator {
    grid-template-columns: 44px 1fr 44px;
  }

  .date-arrow {
    width: 44px;
    height: 44px;
  }

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

  .tab-button {
    font-size: 0.95rem;
    padding: 10px 12px;
  }
}

@media (min-width: 768px) {
  .client-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bottom-actions {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1024px) {
  .client-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}