/* =========================================================
   DIGIWIZR SALES TRACKER — STYLES
   Brand colors: Purple #695EA9 (primary), Cyan #5AC9E8 (secondary)
   ========================================================= */

:root {
  --purple: #695EA9;
  --purple-dark: #564d8c;
  --cyan: #5AC9E8;
  --bg: #ffffff;
  --bg-soft: #F4F4F8;
  --text: #26232f;
  --text-muted: #6b6878;
  --success: #2e9e5b;
  --success-bg: #e8f7ee;
  --error: #d64545;
  --error-bg: #fdecec;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 2px 10px rgba(105, 94, 169, 0.08);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  /* No bounce/overscroll so the app feels native, not like a browser page */
  overscroll-behavior-y: none;
}

body {
  font-family: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-tap-highlight-color: transparent;
  min-height: 100vh;
  min-height: 100dvh;
}

button, input {
  font-family: inherit;
}

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}

/* ---------------------------------------------------------
   HEADER — persistent purple bar, shown on every screen
   --------------------------------------------------------- */
.header {
  background: var(--purple);
  padding: 18px 16px 14px;
  text-align: center;
  position: sticky;
  top: 0;
  z-index: 20;
  /* Room for the notch/status bar when installed full-screen */
  padding-top: calc(18px + env(safe-area-inset-top));
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.back-btn {
  position: absolute;
  left: 0;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 22px;
  line-height: 1;
  padding: 4px 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
}

.back-btn:active {
  background: rgba(255, 255, 255, 0.15);
}

.header-title {
  color: #ffffff;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 1px;
  margin: 0;
}

.header-business {
  color: var(--cyan);
  font-size: 13px;
  margin-top: 4px;
  font-weight: 500;
}

.header-screen-title {
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  margin-top: 4px;
}

/* Offline banner, injected above the header when connection drops */
.offline-banner {
  background: var(--error);
  color: #fff;
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  padding: 8px 12px;
  position: sticky;
  top: 0;
  z-index: 30;
  display: none;
}

.offline-banner.visible {
  display: block;
}

/* ---------------------------------------------------------
   MAIN CONTENT AREA
   --------------------------------------------------------- */
.screen {
  flex: 1;
  display: none;
  flex-direction: column;
  padding: 20px 18px 32px;
  max-width: 480px;
  width: 100%;
  margin: 0 auto;
}

.screen.active {
  display: flex;
}

/* ---------------------------------------------------------
   TYPOGRAPHY
   --------------------------------------------------------- */
h1.screen-title {
  font-size: 20px;
  font-weight: 700;
  margin: 4px 0 18px;
  color: var(--text);
}

p.subtext {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: -8px;
  margin-bottom: 18px;
}

.welcome-msg {
  font-size: 22px;
  font-weight: 700;
  text-align: center;
  margin: 12px 0 28px;
  color: var(--text);
}

/* ---------------------------------------------------------
   FORM ELEMENTS
   --------------------------------------------------------- */
.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 13px 14px;
  border: 1.5px solid var(--purple);
  border-radius: var(--radius-sm);
  font-size: 16px;
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.field input::placeholder {
  color: #b7b3c6;
}

.field input:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(90, 201, 232, 0.25);
}

/* ---------------------------------------------------------
   BUTTONS
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid var(--purple);
  transition: transform 0.08s ease, opacity 0.15s ease;
  text-align: center;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--purple);
  color: #ffffff;
  border-color: var(--purple);
}

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

.btn-secondary {
  background: #ffffff;
  color: var(--purple);
  border-color: var(--purple);
}

.btn-cyan {
  background: var(--cyan);
  color: #ffffff;
  border-color: var(--cyan);
}

.btn-block {
  width: 100%;
}

.link-btn {
  background: none;
  border: none;
  color: var(--purple);
  font-size: 14px;
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
  padding: 10px;
  align-self: center;
}

/* ---------------------------------------------------------
   HOME SCREEN CARDS
   --------------------------------------------------------- */
.home-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 30px;
}

.home-card {
  background: #ffffff;
  border: 1.5px solid var(--purple);
  border-radius: var(--radius);
  padding: 26px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  color: var(--purple);
  box-shadow: var(--shadow);
  transition: background 0.15s ease, border-color 0.15s ease;
}

.home-card:active,
.home-card:hover {
  background: var(--bg-soft);
  border-color: var(--cyan);
}

.home-card .icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--cyan);
}

.home-card .label {
  font-size: 17px;
  font-weight: 700;
}

.sync-badge {
  margin-top: 22px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--purple-dark);
  background: var(--bg-soft);
  border: 1px solid var(--cyan);
  border-radius: 999px;
  padding: 8px 14px;
  display: none;
}

.sync-badge.visible {
  display: block;
}

/* ---------------------------------------------------------
   PRODUCT LIST (Record a Sale)
   --------------------------------------------------------- */
.product-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.product-card {
  border: 1.5px solid var(--purple);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 15px;
  font-weight: 600;
  color: var(--purple);
  background: #ffffff;
  cursor: pointer;
  transition: background 0.12s ease, color 0.12s ease;
}

.product-card.selected {
  background: var(--purple);
  color: #ffffff;
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  padding: 24px 10px;
}

/* ---------------------------------------------------------
   MESSAGES / LOADING
   --------------------------------------------------------- */
.message {
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 16px;
  display: none;
}

.message.visible {
  display: block;
}

.message.success {
  background: var(--success-bg);
  color: var(--success);
}

.message.error {
  background: var(--error-bg);
  color: var(--error);
}

.spinner-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 0;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--bg-soft);
  border-top-color: var(--purple);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ---------------------------------------------------------
   MANAGE PRODUCTS
   --------------------------------------------------------- */
.simple-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.simple-list li {
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--text);
}

.add-product-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.add-product-row .field {
  flex: 1;
  margin-bottom: 0;
}

.add-product-row .btn {
  height: 48px;
  white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  .spinner {
    animation: none;
  }
  * {
    transition: none !important;
  }
}