/* The demo page: a mock of the app (demo.js) framed on the page. Tokens come from styles.css. */

.demo-main { display: block; padding: 0 var(--space-4) var(--space-7); }
/* Lines up with the header, which pads its 1200px */
.demo { max-width: calc(1200px - 2 * var(--space-6)); margin: 0 auto; }

.demo-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4) var(--space-6);
  margin-bottom: var(--space-5);
}
.demo-head h1 {
  margin: 0;
  /* heading-1 */
  font: 800 32px/38px var(--font-display);
  letter-spacing: -0.015em;
  font-variation-settings: "opsz" 48;
}
.demo-intro {
  margin-top: var(--space-2);
  max-width: 62ch;
  font-size: 17px;
  line-height: 26px;
  color: var(--text-muted);
  text-wrap: pretty;
}
.demo-controls { display: flex; flex-wrap: wrap; align-items: flex-end; gap: var(--space-3); }
.demo-noscript { display: grid; justify-items: center; gap: var(--space-3); padding: var(--space-7) var(--space-5); text-align: center; color: var(--text-muted); }
/* Moment poses on the page around the mock: 02-sobre by the launch reminder, 25-duda when JavaScript is off */
.demo-mascot { display: block; width: 160px; height: auto; pointer-events: none; user-select: none; -webkit-user-drag: none; }

/* Company location: a two-option toggle */
.seg { border: 0; min-width: 0; }
.seg legend { padding: 0; margin-bottom: var(--space-1); font: 600 13px/18px var(--font-sans); }
.seg-opts {
  display: inline-flex;
  flex-wrap: wrap;
  padding: 2px;
  background: var(--surface-raised);
  border: 1px solid var(--border-control);
  border-radius: var(--radius-pill);
}
.seg label { position: relative; }
.seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.seg span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 var(--space-3);
  border-radius: var(--radius-pill);
  font: 600 13px/18px var(--font-sans);
  color: var(--text-muted);
  white-space: nowrap;
  transition: background-color .12s ease, color .12s ease;
}
.seg label:hover span { background: var(--surface-sunken); }
.seg input:checked + span { background: var(--primary); color: var(--on-primary); }
.seg input:focus-visible + span { outline: 2px solid var(--focus); outline-offset: 2px; }

.demo-outro {
  margin-top: var(--space-6);
  display: grid;
  justify-items: center;
  gap: var(--space-3);
  text-align: center;
  color: var(--text-muted);
}

/* ---- The app frame */

.app {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  min-height: 620px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.app-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--surface-raised);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.app-company, .app-foot { display: none; }
.app-nav ul { list-style: none; display: flex; gap: var(--space-1); }
.app-nav button {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  width: 100%;
  min-height: 40px;
  padding: 0 var(--space-3);
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-muted);
  font: 500 15px/22px var(--font-sans);
  white-space: nowrap;
  cursor: pointer;
  transition: background-color .12s ease;
}
.app-nav button:hover { background: var(--surface-sunken); }
.app-nav button[aria-current="page"] { background: var(--surface-sunken); color: var(--text); font-weight: 600; }
.app-nav svg { width: 20px; height: 20px; flex: none; }

.app-main { min-width: 0; padding: var(--space-5) var(--space-4); }

.view { display: grid; gap: var(--space-5); max-width: 1040px; }
.view-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.view-head h2, .dlg h2 {
  /* heading-2 */
  font: 700 24px/30px var(--font-display);
  letter-spacing: -0.01em;
  font-variation-settings: "opsz" 32;
}
.view-head h2:focus:not(:focus-visible) { outline: none; }
.title-badges { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-2) var(--space-3); }

.app h3, .app h4 { font: 700 18px/24px var(--font-display); }
.app h4 { font-size: 15px; line-height: 22px; font-family: var(--font-sans); }
.with-icon { display: flex; align-items: center; gap: var(--space-2); }
.with-icon svg { width: 20px; height: 20px; color: var(--link); }

.card {
  min-width: 0;
  padding: var(--space-4);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.stack { display: grid; gap: var(--space-4); min-width: 0; }
.stack-sm { display: grid; gap: var(--space-2); justify-items: start; }
.row-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-2); }
.actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: var(--space-3); }

.label {
  font: 600 12px/16px var(--font-sans);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.small { font: 400 13px/18px var(--font-sans); color: var(--text-muted); }
.block { display: block; }
.strong { font-weight: 600; }
.muted { color: var(--text-muted); }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, "Liberation Mono", monospace; font-size: 13px; }
.hash { overflow-wrap: anywhere; }

/* Money */
.amt { font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }
.amt-lg { display: block; font-size: clamp(24px, 2.4vw, 32px); line-height: 1.15; font-weight: 700; letter-spacing: -0.01em; }
.tone-success { color: var(--success); }
.tone-danger { color: var(--danger); }
.tone-warning { color: var(--warning); }
.tone-muted { color: var(--text-muted); font-weight: 400; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Status badges: the word carries the meaning, the tone helps scanning */
.badges { display: inline-flex; flex-wrap: wrap; gap: var(--space-2); }
.st {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 2px var(--space-2) 2px 7px;
  border-radius: var(--radius-pill);
  font: 600 12px/18px var(--font-sans);
  white-space: nowrap;
}
.st::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.st-neutral { background: var(--status-draft-bg); color: var(--status-draft-fg); }
.st-info { background: var(--status-sent-bg); color: var(--status-sent-fg); }
.st-warning { background: var(--status-pending-bg); color: var(--status-pending-fg); }
.st-success { background: var(--status-paid-bg); color: var(--status-paid-fg); }
.st-danger { background: var(--status-overdue-bg); color: var(--status-overdue-fg); }

/* Dashboard */
.stats { display: grid; gap: var(--space-4); }
.stat { display: grid; gap: var(--space-1); }
.vf-health { display: flex; gap: var(--space-3); align-items: flex-start; }
.vf-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: var(--radius-md);
  background: var(--status-sent-bg);
  color: var(--status-sent-fg);
}
.vf-icon svg { width: 20px; height: 20px; }

/* Tables scroll sideways inside their own frame; the page never does */
.tbl-wrap {
  overflow-x: auto;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
table { width: 100%; border-collapse: collapse; }
th {
  padding: 10px var(--space-4);
  background: var(--surface-sunken);
  font: 600 12px/16px var(--font-sans);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: left;
  white-space: nowrap;
}
th.num { text-align: right; }
td { padding: var(--space-3) var(--space-4); border-top: 1px solid var(--border); white-space: nowrap; vertical-align: middle; }
td .badges { flex-wrap: nowrap; }
.cell-client { max-width: 260px; overflow: hidden; text-overflow: ellipsis; }
.cell-desc { white-space: normal; min-width: 200px; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--surface); }
.linkbtn {
  padding: 0;
  border: 0;
  background: none;
  font: 600 15px/22px var(--font-sans);
  font-variant-numeric: tabular-nums;
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

/* Forms */
.fields { display: grid; gap: var(--space-4); }
.field { display: grid; gap: var(--space-1); align-content: start; min-width: 0; }
.field-label, .lcell-label { font: 600 13px/18px var(--font-sans); }
.ctl {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: var(--space-2) var(--space-3);
  font: 400 15px/22px var(--font-sans);
  color: var(--text);
  background: var(--surface-raised);
  border: 1px solid var(--border-control);
  border-radius: var(--radius-sm);
}
.ctl::placeholder { color: var(--text-subtle); }
.ctl[aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 1px var(--danger); }
.ctl-num { text-align: right; font-variant-numeric: tabular-nums; }
textarea.ctl { min-height: 68px; resize: vertical; }
.field-hint:empty { display: none; }
.field-error { color: var(--danger); font-weight: 600; }
.notes { margin-top: var(--space-1); white-space: pre-wrap; max-width: 65ch; }
select.ctl { cursor: pointer; }
@media (prefers-color-scheme: dark) { .ctl { color-scheme: dark; } }

/* Lines: a row of inputs on wide screens, a stacked card per line on phones */
.lines { display: grid; gap: var(--space-3); }
.line-head { display: none; }
.line {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.lcell { display: grid; gap: var(--space-1); min-width: 0; }
.lc-desc { grid-column: 1 / -1; }
.lc-total { align-content: center; }
.lc-remove { grid-column: 1 / -1; display: flex; justify-content: flex-end; }
.line-total { font-weight: 600; font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
}
.icon-btn:hover { background: var(--surface-sunken); color: var(--danger); }
.icon-btn svg { width: 20px; height: 20px; }

/* Tax summary: base and tax per rate, then the total */
.taxsum {
  display: grid;
  grid-template-columns: auto auto;
  justify-content: end;
  align-items: baseline;
  gap: var(--space-1) var(--space-6);
}
.taxsum dt { color: var(--text-muted); }
.taxsum dd { text-align: right; }
.taxsum .grand { margin-top: var(--space-2); padding-top: var(--space-2); border-top: 1px solid var(--border); }
.taxsum dt.grand { color: var(--text); font-weight: 600; }

.banner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: var(--status-overdue-bg);
  color: var(--status-overdue-fg);
  font-weight: 600;
}
.banner svg { width: 20px; height: 20px; flex: none; margin-top: 1px; }
.banner-warning { flex-wrap: wrap; background: var(--status-pending-bg); color: var(--status-pending-fg); font-weight: 400; }
.banner-body { flex: 1 1 260px; display: grid; gap: var(--space-1); }

/* VeriFactu page */
.view-intro { max-width: 65ch; color: var(--text-muted); }
.vf-grid { display: grid; gap: var(--space-5); }
.vf-health { flex-wrap: wrap; }
.vf-health > div { flex: 1 1 200px; }
.vf-open { align-self: center; }
.how { display: grid; gap: var(--space-3); padding-left: var(--space-5); max-width: 65ch; }
.how li::marker { font-weight: 700; color: var(--link); }
.actions-start { justify-content: flex-start; }
.check-result { display: flex; align-items: flex-start; gap: var(--space-2); font-weight: 600; }
.check-result svg { width: 20px; height: 20px; flex: none; margin-top: 1px; }
.check-result ul { margin: var(--space-1) 0 var(--space-2); padding-left: var(--space-5); font-weight: 400; }
.check-result .small { font-weight: 400; }

/* The chain: one card per record, joined by a line from each record to the one before it */
.chain { list-style: none; display: grid; gap: var(--space-4); }
.chain-item {
  position: relative;
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.chain-item + .chain-item::before {
  content: "";
  position: absolute;
  left: var(--space-6);
  bottom: calc(100% + 1px);
  height: var(--space-4);
  border-left: 2px solid var(--border-control);
}
.chain-item.is-bad { border-color: var(--danger); }
.chain-title { display: flex; flex-wrap: wrap; align-items: baseline; gap: var(--space-1) var(--space-3); }
.chain-pos { font: 600 13px/18px var(--font-sans); font-variant-numeric: tabular-nums; color: var(--text-muted); }
.chain-kv { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: var(--space-3) var(--space-4); }
.chain-kv dt {
  font: 600 12px/16px var(--font-sans);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.chain-kv dd { margin-top: var(--space-1); overflow-wrap: anywhere; }
.mark { display: inline-flex; align-items: center; gap: 4px; font: 600 12px/18px var(--font-sans); white-space: nowrap; }
.mark svg { width: 16px; height: 16px; }

/* Invoice page: what goes into the huella, and the QR tributario */
.recipe summary { width: fit-content; font: 600 13px/18px var(--font-sans); color: var(--link); cursor: pointer; }
.recipe .small { margin-top: var(--space-2); }
.recipe-text {
  margin-top: var(--space-2);
  padding: var(--space-3);
  background: var(--surface-sunken);
  border-radius: var(--radius-sm);
  font-size: 12px;
  line-height: 18px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.vf-rec.vf-qr { display: flex; flex-wrap: wrap; align-items: flex-start; gap: var(--space-4); }
.vf-qr > .stack-sm { flex: 1 1 160px; }
/* Never themed: black on white in both themes, like on paper */
.qr {
  display: grid;
  justify-items: center;
  gap: 6px;
  width: 172px;
  padding: 10px 12px;
  background: #FFFFFF;
  color: #000000;
  border: 1px solid var(--border);
  border-radius: 4px;
}
.qr-title { justify-self: start; font: 600 12px/16px Arial, Helvetica, sans-serif; }
.qr-code { display: block; width: 140px; height: 140px; line-height: 0; }
.qr-code svg { width: 100%; height: 100%; }
.qr-legend { text-align: center; font: 400 10px/13px Arial, Helvetica, sans-serif; }
.ext-link { display: inline-flex; align-items: center; gap: 4px; font: 600 13px/18px var(--font-sans); color: var(--link); }
.ext-link svg { width: 16px; height: 16px; flex: none; }

/* One invoice */
.lock-note { display: flex; align-items: flex-start; gap: var(--space-2); max-width: 75ch; font: 400 13px/18px var(--font-sans); color: var(--text-muted); }
.lock-note svg { width: 16px; height: 16px; flex: none; margin-top: 1px; }
.detail-grid { display: grid; gap: var(--space-5); align-items: start; }
.meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: var(--space-4); }
.meta dt, .kv dt {
  font: 600 12px/16px var(--font-sans);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}
.meta dd { margin-top: var(--space-1); }
.vf-rec { display: grid; gap: var(--space-3); padding-top: var(--space-4); border-top: 1px solid var(--border); }
.kv { display: grid; gap: var(--space-1); }
.kv dd + dt { margin-top: var(--space-2); }

/* Dialogs */
.dlg {
  width: min(560px, calc(100vw - 2 * var(--space-4)));
  margin: auto;
  padding: var(--space-5);
  border: 0;
  border-radius: var(--radius-lg);
  background: var(--surface-raised);
  color: var(--text);
  box-shadow: var(--shadow-overlay);
}
.dlg::backdrop { background: rgba(15, 33, 64, 0.45); }
.dlg p { margin-top: var(--space-2); color: var(--text-muted); }
.dlg .actions { margin-top: var(--space-5); }
.review {
  margin-top: var(--space-4);
  display: grid;
  grid-template-columns: auto auto;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
  padding: var(--space-4);
  background: var(--surface-sunken);
  border-radius: var(--radius-md);
}
.review dt { color: var(--text-muted); }
.review dd { text-align: right; font-weight: 600; }

/* Toasts: bottom centre on phones, bottom right from tablets */
.toasts {
  position: fixed;
  left: var(--space-4);
  right: var(--space-4);
  bottom: var(--space-4);
  z-index: 10;
  display: grid;
  justify-items: center;
  gap: var(--space-2);
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-raised);
  font-weight: 600;
}
.toast svg { width: 20px; height: 20px; flex: none; color: var(--success); }
.toast-danger svg { color: var(--danger); }

@media (min-width: 640px) {
  .fields { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .fields-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .field-wide { grid-column: 1 / -1; }
  .card { padding: var(--space-5); }
}

@media (min-width: 768px) {
  .demo-main { padding: 0 var(--space-6) var(--space-8); }
  .app-main { padding: var(--space-6); }
  .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .vf-grid { grid-template-columns: 3fr 2fr; align-items: start; }
  .toasts { left: auto; justify-items: end; }
  .line-head, .line {
    grid-template-columns: minmax(0, 1fr) 76px 112px 96px 112px 44px;
    gap: var(--space-2);
    align-items: center;
  }
  .line-head { display: grid; }
  .line-head span {
    font: 600 12px/16px var(--font-sans);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--text-muted);
  }
  .line { padding: 0; border: 0; }
  .lc-desc, .lc-remove { grid-column: auto; }
  .lcell-label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }
}

/* The sidebar shows from breakpoint-lg; below it, the sections are a bar across the top */
@media (min-width: 1024px) {
  .app { grid-template-columns: 220px minmax(0, 1fr); }
  .app-nav {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-5);
    padding: var(--space-5) var(--space-3);
    border-bottom: 0;
    border-right: 1px solid var(--border);
    overflow: visible;
  }
  .app-nav ul { flex-direction: column; }
  .app-company { display: flex; align-items: center; gap: var(--space-2); padding: 0 var(--space-2); font-size: 13px; line-height: 18px; }
  .app-company strong { display: block; font-weight: 600; }
  .app-nif { display: block; color: var(--text-muted); font-variant-numeric: tabular-nums; }
  .app-avatar {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    flex: none;
    border-radius: 50%;
    background: var(--primary);
    color: var(--on-primary);
    font: 700 12px/1 var(--font-sans);
  }
  /* Brand spot: 27-asomado on the footer block's top edge, with room kept above it so it never meets the nav */
  .app-foot {
    position: relative;
    display: grid;
    gap: 2px;
    margin-top: auto;
    padding: var(--space-3);
    background: var(--surface-sunken);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 13px;
    line-height: 18px;
  }
  .app-nav ul { margin-bottom: 56px; }
  .app-foot strong { font-weight: 600; }
  .app-foot-mascot {
    position: absolute;
    bottom: calc(100% + 1px);
    left: 50%;
    width: 160px;
    height: auto;
    transform: translateX(-50%);
    pointer-events: none;
    user-select: none;
    -webkit-user-drag: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .seg span, .app-nav button { transition: none; }
}