/* ListoAPP — stylesheet (mobile-first, dark by default, light via prefers-color-scheme) */

:root {
  --bg: #0b1220;
  --surface: #111827;
  --surface-2: #1f2937;
  --border: #374151;
  --text: #f9fafb;
  --text-muted: #9ca3af;
  --accent: #38bdf8;
  --accent-strong: #0284c7;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --radius: 12px;
  --radius-sm: 8px;
  --tap: 44px;
  --maxw: 980px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f4f6fb;
    --surface: #ffffff;
    --surface-2: #eef2f7;
    --border: #d1d5db;
    --text: #111827;
    --text-muted: #4b5563;
    --accent: #0284c7;
    --accent-strong: #0369a1;
    --shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom);
  padding-top: env(safe-area-inset-top);
}

a { color: var(--accent); text-decoration: none; }
a:hover, a:focus { text-decoration: underline; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  min-height: var(--tap);
}

button {
  cursor: pointer;
  background: var(--surface-2);
  transition: background-color 120ms ease, transform 80ms ease;
}
button:hover { background: var(--surface); }
button:active { transform: translateY(1px); }
button:disabled { opacity: 0.5; cursor: not-allowed; }

button.primary {
  background: var(--accent);
  color: #00263a;
  border-color: var(--accent);
  font-weight: 600;
}
button.primary:hover { background: var(--accent-strong); color: #ffffff; }

button.danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}
button.danger:hover { background: var(--danger); color: #ffffff; }

button.ghost {
  background: transparent;
  border-color: transparent;
}
button.ghost:hover { background: var(--surface-2); }

input[type="text"], input[type="number"], input[type="date"],
input[type="search"], input[type="password"], input[type="url"],
input[type="email"], select, textarea {
  width: 100%;
  background: var(--surface);
}

input:focus, select:focus, textarea:focus, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 500;
}

/* App shell */
.app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}

.app-header .row {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.app-header .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.app-header .brand img { width: 28px; height: 28px; }
.app-header .spacer { flex: 1; }

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

main {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 16px;
}
.tab-btn {
  flex: 1;
  min-width: 88px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  font-weight: 600;
  padding: 10px 12px;
}
.tab-btn[aria-selected="true"] {
  background: var(--surface-2);
  color: var(--text);
}

.panel { display: none; }
.panel[data-active="true"] { display: block; }

/* Cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
}
.card h2 { margin: 0 0 8px; font-size: 18px; }
.card h3 { margin: 12px 0 8px; font-size: 15px; color: var(--text-muted); font-weight: 600; }
.card p { margin: 6px 0; color: var(--text); }
.card .muted { color: var(--text-muted); font-size: 14px; }

.row-flex {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.row-flex > .grow { flex: 1; min-width: 0; }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

/* Drop zone */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease;
  background: color-mix(in srgb, var(--surface) 60%, transparent);
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--surface));
  color: var(--text);
}
.dropzone strong { color: var(--text); display: block; margin-bottom: 4px; }
.dropzone input[type="file"] { display: none; }

/* Tables (preventivo / listino) */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
table.data {
  width: 100%;
  border-collapse: collapse;
  min-width: 480px;
  font-size: 14px;
}
table.data th, table.data td {
  padding: 10px 8px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
table.data thead th {
  background: var(--surface-2);
  font-weight: 600;
  color: var(--text-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
table.data tbody tr:last-child td { border-bottom: none; }
table.data td.num, table.data th.num { text-align: right; font-variant-numeric: tabular-nums; }
table.data td input[type="number"] {
  width: 84px;
  padding: 6px 8px;
  min-height: 36px;
  text-align: right;
}
table.data td input[type="text"] {
  width: 100%;
  padding: 6px 8px;
  min-height: 36px;
}
table.data td button { padding: 6px 8px; min-height: 36px; }

.totals {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  flex-wrap: wrap;
  padding: 12px 8px 4px;
  font-size: 16px;
}
.totals .label { color: var(--text-muted); margin-right: 6px; }
.totals .value { font-weight: 700; font-variant-numeric: tabular-nums; }
.totals .grand { font-size: 20px; color: var(--accent); }

/* Promo list */
.promo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 720px) {
  .promo-grid { grid-template-columns: 1fr 1fr; }
}
.promo {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease;
}
.promo:hover { transform: translateY(-1px); border-color: var(--accent); }
.promo header {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  justify-content: space-between;
}
.promo h3 { margin: 0; font-size: 16px; }
.promo .desc { color: var(--text-muted); font-size: 14px; }
.promo .meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-muted);
  white-space: nowrap;
}
.badge.local { background: color-mix(in srgb, var(--accent) 15%, var(--surface-2)); color: var(--accent); border-color: var(--accent); }
.badge.expired { color: var(--danger); border-color: var(--danger); }
.badge.upcoming { color: var(--warning); border-color: var(--warning); }

/* Toasts */
.toast-wrap {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
  z-index: 60;
  padding-bottom: calc(16px + env(safe-area-inset-bottom));
}
.toast {
  pointer-events: auto;
  max-width: 520px;
  width: 100%;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: toast-in 200ms ease-out;
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warn { border-left-color: var(--warning); }
.toast .msg { flex: 1; font-size: 14px; }
.toast button { padding: 4px 10px; min-height: 32px; font-size: 13px; }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Banner (update available) */
.banner {
  background: color-mix(in srgb, var(--accent) 18%, var(--surface));
  border-bottom: 1px solid var(--accent);
  padding: 10px 16px;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 14px;
}
.banner.hidden { display: none; }
.banner button { padding: 6px 12px; min-height: 36px; }

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 70;
  padding: 0;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--surface);
  width: 100%;
  height: 100%;
  max-width: 980px;
  max-height: 100%;
  border-radius: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
@media (min-width: 720px) {
  .modal-backdrop { padding: 24px; }
  .modal { height: auto; max-height: 90vh; border-radius: var(--radius); }
}
.modal header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.modal header h3 { margin: 0; font-size: 16px; flex: 1; }
.modal .body {
  flex: 1;
  overflow: auto;
  padding: 0;
  background: var(--bg);
}
.modal .body.padded { padding: 16px; }
.modal .body iframe { width: 100%; height: 100%; border: 0; min-height: 60vh; background: #fff; }
.modal .body img { display: block; max-width: 100%; height: auto; margin: 0 auto; }
.modal footer {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 8px;
}

/* Listino preview */
.preview {
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface);
}
.preview .row {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.preview .row:last-child { border-bottom: none; }
.preview .row.head { background: var(--surface-2); font-weight: 600; color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
.preview .row .price { text-align: right; font-variant-numeric: tabular-nums; }

/* Search */
.search-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

/* Help */
.help h3 { margin-top: 16px; }
.help ul { padding-left: 20px; }
.help li { margin-bottom: 4px; }
.help kbd {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

/* Admin specific */
.admin-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 720px) {
  .admin-form { grid-template-columns: 1fr 1fr; }
  .admin-form .full { grid-column: 1 / -1; }
}
.token-status {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}
.token-status.ok { color: var(--success); }
.token-status.ko { color: var(--danger); }

.promo-edit {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 10px;
  background: var(--surface);
}
.promo-edit .actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
  margin-top: 8px;
  flex-wrap: wrap;
}

.empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

footer.app-footer {
  max-width: var(--maxw);
  margin: 24px auto 0;
  padding: 16px;
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
}

/* ────────────────────────────────────────────────
 * Excel ↔ PDF link: bottoni "Pag. N" + viewer overlay
 * ──────────────────────────────────────────────── */

.pageBtn {
  background: #eef2ff;
  color: #1f2937;
  border: 1px solid #c7d2fe;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  font-size: 13px;
  min-height: 32px;
}
.pageBtn + .pageBtn { margin-left: 4px; }
.pageBtn:hover { background: #e0e7ff; }

.mobilePageBtns { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 8px; }
.mobilePageBtns .pageBtn {
  flex: 1 1 auto;
  min-height: 40px;
  background: #1d4ed8;
  color: #fff;
  border-color: #1d4ed8;
}

/* Tabella listino full: filtri sopra, paginazione sotto */
.listino-filters {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 8px 0 12px;
}
@media (min-width: 720px) {
  .listino-filters { grid-template-columns: 2fr 1fr 1fr 1fr 1fr auto; align-items: end; }
}
.listino-pager {
  display: flex;
  gap: 8px;
  justify-content: space-between;
  align-items: center;
  margin-top: 8px;
  font-size: 13px;
  color: var(--text-muted);
}
.listino-pdf-status {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 6px;
}
.listino-pdf-status.ok { color: var(--success); }

/* PDF viewer overlay full-screen */
.pdfViewer {
  position: fixed; inset: 0;
  background: #111827;
  z-index: 10000;
  display: flex; flex-direction: column;
}
.pdfViewer.hide { display: none !important; }
.pdfTop {
  display: flex; gap: 8px; align-items: center; justify-content: space-between;
  padding: 10px;
  padding-top: calc(10px + env(safe-area-inset-top));
  background: #020617; color: #fff;
}
.pdfTop b {
  font-size: 14px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  max-width: 38vw;
}
.pdfNav { display: flex; gap: 8px; align-items: center; }
.pdfNav button {
  padding: 8px 12px; border-radius: 10px;
  background: #fff; color: #111827; border: 0;
  min-height: 36px; font-weight: 600;
}
.pdfNav button:hover { background: #e5e7eb; }
.pdfNav input {
  width: 64px; padding: 6px; text-align: center;
  border: 1px solid #374151; border-radius: 8px;
  background: #fff; color: #111827;
  min-height: 36px;
}
.pdfNav span { color: #fff; font-size: 13px; }
.pdfCanvasWrap {
  flex: 1; overflow: auto; -webkit-overflow-scrolling: touch;
  display: flex; justify-content: center; align-items: flex-start;
  padding: 12px; background: #374151;
  padding-bottom: calc(12px + env(safe-area-inset-bottom));
}
#pdfCanvas {
  background: #fff; box-shadow: 0 10px 35px rgba(0,0,0,.35);
  max-width: 100%; height: auto;
}

@media (max-width: 700px) {
  .pdfTop { flex-wrap: wrap; }
  .pdfTop b { max-width: 100%; width: 100%; }
  .pdfNav { width: 100%; justify-content: space-between; }
  .pdfNav input { width: 56px; }
}

/* Catalogo preventivo: stato "già aggiunto" + flash su click */
.primary.is-added { background: #16a34a; color: white; }
.primary.is-added:hover { background: #15803d; }
.primary.flash { transform: scale(1.08); transition: transform 120ms ease-out; }

/* Editor intestazione PDF preventivo (logo + anagrafica) */
.quote-header-editor { margin: 12px 0; border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; }
.quote-header-editor summary { cursor: pointer; font-weight: 600; padding: 4px 0; user-select: none; list-style: none; }
.quote-header-editor summary::-webkit-details-marker { display: none; }
.quote-header-editor summary::before { content: '▸ '; display: inline-block; transition: transform 0.15s ease; }
.quote-header-editor[open] summary::before { content: '▾ '; }
.quote-header-grid { display: grid; grid-template-columns: 1fr; gap: 12px; margin-top: 10px; }
@media (min-width: 720px) { .quote-header-grid { grid-template-columns: 2fr 1fr; } }
.quote-header-grid textarea { width: 100%; min-height: 140px; resize: vertical; font-family: inherit; }
.qh-logo-preview { margin-top: 8px; min-height: 60px; }
.qh-logo-preview img { max-width: 200px; max-height: 100px; border: 1px solid var(--border); border-radius: 4px; }
.quote-header-actions { display: flex; gap: 8px; margin-top: 12px; justify-content: flex-end; }
#quote-customer { width: 100%; min-height: 80px; resize: vertical; font-family: inherit; }
.pdf-opt { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; cursor: pointer; user-select: none; margin-right: 8px; }
.pdf-opt input { margin: 0; }