:root {
  --bg: #f3f5f7;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --surface-muted: #eef2f5;
  --text: #202923;
  --muted: #6c756e;
  --border: #dce3e8;
  --border-strong: #c7d2da;
  --green: #3f7d4a;
  --green-dark: #2f6339;
  --green-soft: #e4efe7;
  --amber: #9b6a18;
  --amber-soft: #fff3d0;
  --red: #9f3e36;
  --red-soft: #fbe8e5;
  --blue: #37687f;
  --blue-soft: #e5f0f4;
  --shadow: 0 6px 18px rgba(32, 41, 35, 0.06);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.4;
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 42px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
  font-weight: 750;
  padding: 8px 12px;
  pointer-events: auto;
  touch-action: manipulation;
  transition: background 150ms ease, border-color 150ms ease, transform 100ms ease;
}

button:hover {
  background: var(--surface-muted);
  border-color: var(--green);
}

button:active {
  transform: translateY(1px);
}

.primary-button {
  border-color: var(--green);
  background: var(--green);
  color: #ffffff;
}

.primary-button:hover {
  background: var(--green-dark);
  border-color: var(--green-dark);
}

.secondary-button {
  min-height: 38px;
  border-color: var(--border);
  background: var(--surface-soft);
  color: var(--green-dark);
}

.secondary-button:hover {
  background: var(--green-soft);
  border-color: var(--green);
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 58px;
  padding: 10px 14px;
  background: rgba(245, 247, 248, 0.94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.app-header h1 {
  margin: 0;
  font-size: 21px;
  line-height: 1.1;
  letter-spacing: 0;
}

.app-header p {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 7px;
  flex-wrap: wrap;
}

.header-actions button {
  min-height: 36px;
  padding: 6px 10px;
}

.app-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 12px 12px 86px;
}

.tab-bar {
  position: fixed;
  right: 12px;
  bottom: 12px;
  left: 12px;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  max-width: 420px;
  margin: 0 auto;
  padding: 6px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.tab-button {
  min-width: 0;
  min-height: 40px;
  border-color: transparent;
  background: transparent;
}

.tab-button.active {
  border-color: var(--green-soft);
  background: var(--green-soft);
  color: var(--green-dark);
}

.screen {
  min-height: 100vh;
  padding: 24px;
}

.auth-screen {
  display: grid;
  align-content: center;
  gap: 18px;
  max-width: 420px;
  margin: 0 auto;
}

.auth-screen h1 {
  margin: 0;
  font-size: 32px;
  letter-spacing: 0;
}

.muted-text {
  margin: 0;
  color: var(--muted);
}

.error-message {
  margin: 0;
  color: var(--red);
  font-weight: 750;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px;
  box-shadow: var(--shadow);
}

.panel h2 {
  margin: 0 0 10px;
  font-size: 16px;
  line-height: 1.2;
  letter-spacing: 0;
}

.wide {
  grid-column: 1 / -1;
}

.hidden {
  display: none;
}

.active-requests-panel {
  order: 1;
}

.stock-alerts-panel {
  order: 2;
}

.create-request-panel {
  order: 3;
}

.online-users-panel {
  order: 4;
}

.alerts-panel {
  order: 5;
}

.settings-panel {
  order: 6;
}

.form-grid {
  display: grid;
  gap: 10px;
}

label {
  display: grid;
  gap: 6px;
  color: #3f4b42;
  font-size: 13px;
  font-weight: 750;
}

input,
select {
  min-height: 42px;
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  padding: 8px 10px;
}

input:focus,
select:focus,
button:focus-visible {
  outline: 3px solid rgba(63, 125, 74, 0.2);
  outline-offset: 2px;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 9px;
}

.checkbox-row input {
  min-height: auto;
  width: 19px;
  height: 19px;
  accent-color: var(--green);
}

.list {
  display: grid;
  gap: 8px;
}

.empty {
  color: var(--muted);
  padding: 8px 0;
  font-size: 14px;
}

.section-subtitle {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.row-card {
  display: grid;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  background: var(--surface);
}

.row-card strong {
  color: var(--text);
  font-size: 15px;
}

.row-card span:not(.status-label) {
  color: var(--muted);
  font-size: 13px;
}

.timestamp-text {
  color: var(--muted);
  font-size: 12px;
}

.alert-card {
  border-color: #dfbd68;
  border-left: 4px solid var(--amber);
  background: #fffaf0;
}

.alert-card strong,
.request-card strong {
  font-size: 16px;
}

.alert-card-highlight {
  animation: alertPulse 1.1s ease-in-out 3;
  box-shadow: 0 0 0 3px rgba(155, 106, 24, 0.14);
}

.request-card {
  border-color: var(--border-strong);
  border-left: 4px solid var(--green);
  background: #ffffff;
}

.request-card .primary-button,
.alert-card .primary-button {
  margin-top: 3px;
}

.alerts-control {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.alerts-control button {
  min-height: 38px;
}

.iphone-help-card {
  margin-top: 10px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 13px;
}

.iphone-help-card strong {
  color: var(--text);
  font-size: 13px;
}

.iphone-help-card ol {
  margin: 8px 0;
  padding-left: 20px;
}

.iphone-help-card p {
  margin: 0;
}

.request-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.shift-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.shift-controls.hidden {
  display: none;
}

.admin-form {
  margin-bottom: 14px;
}

.admin-button-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.status-label {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: fit-content;
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 12px;
  font-weight: 800;
  line-height: 1.1;
  text-transform: capitalize;
  letter-spacing: 0;
}

.online,
.delivered {
  background: var(--green-soft);
  color: var(--green-dark);
}

.offline,
.cancelled {
  background: var(--red-soft);
  color: var(--red);
}

.break {
  background: var(--amber-soft);
  color: var(--amber);
}

.pending {
  background: var(--blue-soft);
  color: var(--blue);
}

.assigned {
  background: #e8eef2;
  color: #455761;
}

@keyframes alertPulse {
  0% {
    background: #fffaf0;
  }

  50% {
    background: #fff1c2;
  }

  100% {
    background: #fffaf0;
  }
}

@media (min-width: 760px) {
  .app-header {
    padding: 12px 18px;
  }

  .app-layout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    padding: 14px;
  }

  .tab-bar {
    position: static;
    display: flex;
    max-width: 1180px;
    margin: 0 auto;
    padding: 12px 14px 0;
    background: transparent;
    border: 0;
    box-shadow: none;
    backdrop-filter: none;
  }

  .tab-button {
    min-width: 128px;
    border-color: var(--border-strong);
    background: rgba(255, 255, 255, 0.72);
  }

  .active-requests-panel {
    order: 3;
  }

  .stock-alerts-panel {
    order: 2;
  }

  .create-request-panel {
    order: 1;
  }

  .online-users-panel {
    order: 4;
  }

  .alerts-panel {
    order: 0;
  }

  .settings-panel {
    order: 5;
  }

  .admin-button-row {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}