/* app.css — layout & components for the Warm / human invoice generator.
   Mobile-first; complexity added at min-width breakpoints. */

/* ===================== Header ===================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: color-mix(in srgb, var(--color-bg-primary) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--color-border-secondary);
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-lg);
}
.wordmark__mark {
  color: var(--color-accent-primary);
  font-size: 1.3em;
  transform: rotate(-20deg);
  transition: transform var(--duration-slow) var(--easing-settle);
}
.wordmark:hover .wordmark__mark { transform: rotate(160deg); }

.header-tools { display: flex; align-items: center; gap: var(--space-2); }

.theme-toggle {
  display: inline-grid;
  place-items: center;
  width: 40px; height: 40px;
  background: transparent;
  border: 1.5px solid var(--color-border-primary);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  color: var(--color-text-secondary);
  transition: border-color var(--duration-fast) var(--easing-default), color var(--duration-fast) var(--easing-default), transform var(--duration-fast) var(--easing-settle);
}
.theme-toggle:hover { border-color: var(--color-accent-primary); color: var(--color-accent-primary); transform: rotate(-15deg); }

/* Language switcher (native <details>) */
.langswitch { position: relative; }
.langswitch__summary {
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.7rem;
  border: 1.5px solid var(--color-border-primary);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  user-select: none;
  transition: border-color var(--duration-fast) var(--easing-default);
}
.langswitch__summary::-webkit-details-marker { display: none; }
.langswitch__summary:hover { border-color: var(--color-accent-primary); }
.langswitch__globe { font-size: 0.95em; }
.langswitch__chev { font-size: 0.7em; transition: transform var(--duration-fast); }
.langswitch[open] .langswitch__chev { transform: rotate(180deg); }
.langswitch__menu {
  position: absolute;
  right: 0;
  margin-top: 0.4rem;
  min-width: 160px;
  list-style: none;
  padding: var(--space-2);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 30;
}
.langswitch__item {
  display: block;
  padding: 0.5rem 0.7rem;
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
}
.langswitch__item:hover { background: var(--color-bg-tertiary); }
.langswitch__item.is-current { color: var(--color-accent-primary); font-weight: var(--font-weight-semibold); background: var(--color-accent-soft); }

/* ===================== Generator shell ===================== */
.generator {
  max-width: var(--max-width-page);
  margin: 0 auto;
  padding: var(--space-6) var(--space-4) var(--space-9);
}

.hero { max-width: 44rem; margin: var(--space-4) auto var(--space-7); text-align: center; }
.hero__title {
  font-size: clamp(1.9rem, 6.2vw, 3.75rem);
  margin-bottom: var(--space-4);
  overflow-wrap: break-word; /* safety net only — no mid-word hyphenation */
}
.hero__sub { font-size: var(--font-size-md); color: var(--color-text-secondary); line-height: var(--line-height-relaxed); }
.hero__privacy {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: var(--space-4);
  padding: 0.5rem 0.9rem;
  font-size: var(--font-size-sm);
  color: var(--color-accent-primary);
  background: var(--color-accent-soft);
  border-radius: var(--border-radius-full);
}

/* Two-pane workbench: stacked on mobile, side-by-side on lg */
.workbench { display: grid; grid-template-columns: 1fr; gap: var(--space-5); }

/* ===================== Form ===================== */
.invoice-form { display: grid; gap: var(--space-4); min-width: 0; }
.field-group {
  min-inline-size: 0; /* kill WebKit's native fieldset min-width floor */
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--border-radius-lg);
  background: var(--color-bg-secondary);
  padding: var(--space-4);
  margin: 0;
}
.field-group legend {
  font-family: var(--font-family-display);
  font-weight: var(--font-weight-semibold);
  font-variation-settings: var(--font-display-settings);
  font-size: var(--font-size-md);
  padding: 0 var(--space-2);
  color: var(--color-text-primary);
}
.field { display: block; margin-bottom: var(--space-3); }
.field:last-child { margin-bottom: 0; }
.field > span {
  display: block;
  margin-bottom: 0.35rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}
/* minmax(0, 1fr) — not plain 1fr — so a native date input's wide intrinsic
   min-width can't blow the track out and collapse the gap between columns. */
.field-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-3); }
.field__note { display: block; margin-top: 0.3rem; font-size: var(--font-size-xs); color: var(--color-text-secondary); }

/* Logo field: file input + inline "remove logo" cross sitting beside the filename */
.field__cap {
  display: block;
  margin-bottom: 0.35rem;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}
/* Custom control: styled "choose file" button + our own filename + remove cross,
   so the red cross sits right beside the filename (the native input reserves a
   fixed width that would strand the cross at the far edge of the column). */
.logo-row { display: flex; align-items: center; gap: 0.5rem; }
.logo-choose { flex: 0 0 auto; }
.logo-name {
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}
.logo-remove {
  flex: 0 0 auto;
  width: 28px; height: 28px;
  display: grid; place-items: center;
  background: transparent;
  border: none;
  border-radius: var(--border-radius-sm);
  color: var(--color-status-error);
  cursor: pointer;
  font-size: 0.8rem;
  transition: color var(--duration-fast), background var(--duration-fast);
}
.logo-remove:hover { background: color-mix(in srgb, var(--color-status-error) 12%, transparent); }

/* Inline field + adjacent action (e.g. invoice # + increment) */
.field__control { display: flex; align-items: stretch; gap: 0.4rem; }
.field__control > input { flex: 1 1 auto; min-width: 0; }
/* Compact unit picker sitting beside an input (e.g. discount %/amount) */
.unit-select { flex: 0 0 auto; width: auto; min-width: 4.75rem; padding-left: 0.6rem; }

/* Quick-action chips (set today, +2 weeks, discount/tax presets) */
.quick-row { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.4rem; }
.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0.25rem 0.6rem;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  color: var(--color-text-secondary);
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-secondary);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--duration-fast) var(--easing-default),
              border-color var(--duration-fast) var(--easing-default),
              background var(--duration-fast) var(--easing-default);
}
.chip:hover { color: var(--color-accent-primary); border-color: var(--color-accent-primary); background: var(--color-accent-soft); }
.chip:active { transform: translateY(0.5px); }
.chip--icon { min-width: 44px; font-family: var(--font-family-mono); }

/* Line items */
.items__head, .item-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2.8rem 4.2rem 4.6rem 3.4rem;
  gap: 0.4rem;
  align-items: center;
}
.item-row input, .item-row output { min-width: 0; }

/* On narrow screens the four fixed columns leave no room for the item name,
   clipping it to a few characters. Give the description its own full-width
   line and drop qty/rate/amount/actions onto a second row. */
@media (max-width: 479px) {
  .items__head, .item-row {
    /* Fixed actions track (not auto) so the header — whose actions cell is
       empty — and the item rows share identical column widths; otherwise the
       AMOUNT label drifts right of the amount value. */
    grid-template-columns: minmax(0, 3.5rem) minmax(0, 4.6rem) minmax(0, 1fr) 3.6rem;
    grid-template-areas:
      "desc desc desc   desc"
      "qty  rate amount actions";
    gap: 0.4rem 0.5rem;
  }
  .item-row .it-desc,   .items__head span:nth-child(1) { grid-area: desc; }
  .item-row .it-qty,    .items__head span:nth-child(2) { grid-area: qty; }
  .item-row .it-rate,   .items__head span:nth-child(3) { grid-area: rate; }
  .item-row .it-amount, .items__head span:nth-child(4) { grid-area: amount; }
  .item-row__actions,   .items__head span:nth-child(5) { grid-area: actions; }
}
.items__head { padding: 0 0 0.4rem; font-size: var(--font-size-xs); text-transform: uppercase; letter-spacing: var(--letter-spacing-wide); color: var(--color-text-tertiary); }
.items__head span:nth-child(n+2) { text-align: right; }
.item-row { margin-bottom: 0.5rem; }
.item-row input { padding: 0.45rem 0.55rem; }
.item-row .it-qty, .item-row .it-rate { text-align: right; }
.item-row .it-amount {
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  text-align: right;
  color: var(--color-text-secondary);
  font-variant-numeric: tabular-nums;
  overflow: hidden;
  text-overflow: ellipsis;
}
.item-row__actions { display: flex; align-items: center; justify-content: flex-end; gap: 0.1rem; }
.item-row__remove, .item-row__dup {
  width: 28px; height: 28px;
  display: grid; place-items: center;
  background: transparent;
  border: none;
  border-radius: var(--border-radius-sm);
  color: var(--color-text-tertiary);
  cursor: pointer;
  font-size: 0.8rem;
  transition: color var(--duration-fast), background var(--duration-fast);
}
.item-row__dup { font-size: 0.95rem; }
.item-row__dup:hover { color: var(--color-accent-primary); background: var(--color-accent-soft); }
.item-row__remove:hover { color: var(--color-status-error); background: color-mix(in srgb, var(--color-status-error) 12%, transparent); }
.item-row.is-leaving { opacity: 0; transform: translateX(-8px); transition: opacity var(--duration-fast), transform var(--duration-fast); }

.form-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.form-actions .btn--primary { flex: 1 1 auto; }

/* ===================== Invoice preview ("quietly warm professional") ===================== */
.preview-pane { min-width: 0; }

/* Header above the document: picks the invoice's OUTPUT language (independent of
   the UI language). Right-aligned so it reads as a control on the document. */
.preview-head { display: flex; justify-content: flex-end; margin-bottom: var(--space-3); }
.preview-head__lang { display: inline-flex; align-items: center; gap: var(--space-2); }
.preview-head__lang-label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-text-muted);
  white-space: nowrap;
}
.preview-head__lang select { width: auto; }

.preview-scroll { overflow-x: auto; }

.invoice-doc {
  --pad: clamp(1.25rem, 3vw, 2.25rem);
  background: var(--inv-paper);
  color: var(--inv-ink);
  border: 1px solid var(--inv-rule);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--pad);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  min-width: 20rem;
}
.invoice-doc p { margin: 0; }
/* Momentary state while html2pdf rasterizes the doc into a downloadable PDF:
   drop the on-screen border/shadow/radius so the captured page is clean. */
.invoice-doc.is-exporting {
  border: none;
  border-radius: 0;
  box-shadow: none;
  min-width: 0;
}
.inv__label { font-size: var(--font-size-xs); text-transform: uppercase; letter-spacing: var(--letter-spacing-wide); color: var(--inv-muted); }

.inv__top { display: flex; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; padding-bottom: var(--space-4); border-bottom: 2px solid var(--inv-accent); }
.inv__brand { display: flex; gap: var(--space-3); align-items: flex-start; }
.inv__logo { max-height: 56px; max-width: 140px; border-radius: 6px; object-fit: contain; }
.inv__from-name { font-family: var(--font-family-display); font-weight: var(--font-weight-semibold); font-size: var(--font-size-md); }
.inv__from-email, .inv__from-addr, .inv__client-addr { color: var(--inv-muted); white-space: pre-line; }
.inv__title-block { text-align: right; }
.inv__title { font-family: var(--font-family-display); font-size: var(--font-size-xl); color: var(--inv-accent); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.4rem; }
.inv__title-block p + p { margin-top: 0.15rem; }

.inv__parties { padding: var(--space-4) 0; }
.inv__client-name { font-weight: var(--font-weight-semibold); font-size: var(--font-size-base); margin-top: 0.2rem; }

.inv__table { width: 100%; border-collapse: collapse; margin: var(--space-2) 0 var(--space-4); }
.inv__table th { text-align: left; font-size: var(--font-size-xs); text-transform: uppercase; letter-spacing: var(--letter-spacing-wide); color: var(--inv-muted); padding: 0.5rem 0.6rem; border-bottom: 1px solid var(--inv-rule); }
.inv__table td { padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--inv-rule); vertical-align: top; }
.inv__table tbody tr:nth-child(even) td { background: var(--inv-zebra); }
.inv__table .num { text-align: right; font-family: var(--font-family-mono); font-variant-numeric: tabular-nums; white-space: nowrap; }

.inv__totals { margin-left: auto; width: min(16rem, 100%); }
.inv__total-line { display: flex; justify-content: space-between; gap: var(--space-4); padding: 0.35rem 0; color: var(--inv-muted); }
.inv__total-line span:last-child { font-family: var(--font-family-mono); font-variant-numeric: tabular-nums; color: var(--inv-ink); }
.inv__total-line--grand { margin-top: 0.35rem; padding-top: 0.6rem; border-top: 2px solid var(--inv-accent); font-family: var(--font-family-display); font-weight: var(--font-weight-semibold); font-size: var(--font-size-md); color: var(--inv-ink); }
.inv__total-line--grand span:last-child { color: var(--inv-accent); font-family: var(--font-family-mono); }

.inv__notes { margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--inv-rule); }
.inv__notes p:last-child { color: var(--inv-muted); white-space: pre-line; margin-top: 0.25rem; }

/* ===================== SEO sections ===================== */
.seo-section { max-width: var(--max-width-content); margin: var(--space-9) auto 0; }
.seo-section__title { font-size: var(--font-size-2xl); text-align: center; margin-bottom: var(--space-6); }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: var(--space-4); }
.step { background: var(--color-bg-secondary); border: 1px solid var(--color-border-secondary); border-radius: var(--border-radius-lg); padding: var(--space-5); }
.step__title { font-size: var(--font-size-md); margin-bottom: var(--space-2); }
.step__body { color: var(--color-text-secondary); margin: 0; }

.faq { display: grid; gap: var(--space-2); }
.faq__item { background: var(--color-bg-secondary); border: 1px solid var(--color-border-secondary); border-radius: var(--border-radius-md); padding: var(--space-3) var(--space-4); }
.faq__q { cursor: pointer; font-family: var(--font-family-display); font-weight: var(--font-weight-medium); font-variation-settings: var(--font-display-settings); list-style: none; display: flex; justify-content: space-between; gap: var(--space-3); }
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after { content: "＋"; color: var(--color-accent-primary); }
.faq__item[open] .faq__q::after { content: "－"; }
.faq__a { color: var(--color-text-secondary); margin: var(--space-3) 0 0; }

/* ===================== Footer ===================== */
.site-footer { border-top: 1px solid var(--color-border-secondary); margin-top: var(--space-9); background: var(--color-bg-secondary); }
.site-footer__inner { max-width: var(--max-width-page); margin: 0 auto; padding: var(--space-6) var(--space-4); display: grid; gap: var(--space-4); }
.site-footer__tag { color: var(--color-text-secondary); font-size: var(--font-size-sm); margin: 0.4rem 0 0; }
.site-footer__nav a, .site-footer__langs a { color: var(--color-text-secondary); text-decoration: none; font-size: var(--font-size-sm); margin-right: var(--space-4); }
.site-footer__langs { display: flex; flex-wrap: wrap; gap: 0.2rem var(--space-2); }
.site-footer__langs a { margin-right: 0; }
.site-footer__nav a:hover, .site-footer__langs a:hover { color: var(--color-accent-primary); }
.site-footer__langs a.is-current { color: var(--color-accent-primary); font-weight: var(--font-weight-semibold); }
.site-footer__copy { color: var(--color-text-tertiary); font-size: var(--font-size-xs); margin: 0; }

/* ===================== Prose / privacy ===================== */
.prose-page { max-width: var(--max-width-content); margin: 0 auto; padding: var(--space-8) var(--space-4) var(--space-9); }
.prose__eyebrow { color: var(--color-accent-primary); font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); }
.prose__lead { font-size: var(--font-size-2xl); }
.prose p { color: var(--color-text-secondary); line-height: var(--line-height-relaxed); }
.prose__back { margin-top: var(--space-6); }
.prose__back a { font-weight: var(--font-weight-semibold); text-decoration: none; }
.prose__subhead {
  font-size: var(--font-size-lg);
  margin-top: var(--space-7);
  margin-bottom: var(--space-2);
}

/* ===================== 404 ===================== */
.notfound { min-height: 60vh; display: grid; place-items: center; padding: var(--space-6) var(--space-4); text-align: center; }
.notfound__glyph { font-size: 4rem; color: var(--color-accent-primary); margin: 0 0 var(--space-3); }
.notfound__title { font-size: var(--font-size-2xl); }
.notfound__sub { color: var(--color-text-secondary); max-width: 30rem; margin: 0 auto var(--space-6); }

/* ===================== Mobile sticky download bar ===================== */
.mobile-download {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 25;
  padding: var(--space-3) var(--space-4);
  padding-bottom: calc(var(--space-3) + env(safe-area-inset-bottom));
  background: color-mix(in srgb, var(--color-bg-primary) 92%, transparent);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--color-border-secondary);
  display: flex;
}
.mobile-download .btn { flex: 1; }

/* ===================== Breakpoints ===================== */
@media (min-width: 1024px) {
  .workbench {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: var(--space-6);
    align-items: start;
  }
  .preview-pane { position: sticky; top: calc(64px + var(--space-4)); }
  .mobile-download { display: none; }
}

/* ===================== Cookie-consent banner ===================== */
.cookie-banner {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: var(--space-4);
  z-index: 60;
  width: min(40rem, calc(100vw - 2 * var(--space-4)));
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}
.cookie-banner[hidden] { display: none; }
.cookie-banner__text {
  flex: 1 1 16rem;
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text-secondary);
}
.cookie-banner__link {
  color: var(--color-text-link);
  font-weight: var(--font-weight-medium);
  text-decoration: underline;
  white-space: nowrap;
}
.cookie-banner__actions {
  display: flex;
  gap: var(--space-2);
  flex: 0 0 auto;
  margin-left: auto;
}
@media (max-width: 640px) {
  .cookie-banner {
    left: 0; right: 0;
    bottom: 0;
    transform: none;
    width: auto;
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
    padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom));
  }
  .cookie-banner__actions { width: 100%; }
  .cookie-banner__actions .btn { flex: 1; }
}