:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #1f2937;
  --muted: #6b7280;
  --brand: #1f2a3a;
  --accent: #2563eb;
  --ok: #15803d;
  --warn: #b45309;
  --err: #dc2626;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 4px 16px rgba(16, 24, 40, 0.06);
  --font-ui: 'Inter', 'Noto Sans Arabic', 'Segoe UI', Tahoma, sans-serif;

  /* spacing scale */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;

  /* input metrics */
  --input-h: 46px;
  --input-r: 10px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

#builder,
#faq,
.section {
  scroll-margin-top: 76px;
}

body {
  margin: 0;
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 20px;
}

a {
  color: var(--accent);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand);
  color: #fff;
  padding: 10px 16px;
  z-index: 999;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 62px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  font-size: 18px;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.5px;
}
.main-nav {
  display: flex;
  gap: 18px;
  margin-inline-start: 8px;
}
.main-nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  padding: 6px 4px;
  border-radius: 6px;
}
.main-nav a:hover {
  color: var(--accent);
}
.lang-switcher {
  margin-inline-start: auto;
  display: flex;
  gap: 4px;
  background: #eef0f3;
  padding: 3px;
  border-radius: 9px;
}
.lang-btn {
  border: none;
  background: transparent;
  padding: 6px 12px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font-ui);
  cursor: pointer;
  color: var(--muted);
}
.lang-btn.active {
  background: #fff;
  color: var(--text);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.12);
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, #eef2f8 0%, var(--bg) 100%);
  padding: 64px 0 48px;
  text-align: center;
}
.hero-inner {
  max-width: 720px;
}
.hero h1 {
  font-size: clamp(30px, 4.5vw, 46px);
  line-height: 1.15;
  font-weight: 800;
  margin: 0 0 18px;
  letter-spacing: -0.5px;
  color: #0b1220;
}
.subheadline {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--muted);
  margin: 0 auto 28px;
  max-width: 620px;
}
.hero-cta {
  margin-bottom: 16px;
}
.cta-secondary {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-ui);
  cursor: pointer;
  text-decoration: none;
  transition: filter 0.15s, background 0.15s;
  min-height: 40px;
}
.btn:hover {
  filter: brightness(0.97);
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn:disabled {
  opacity: 0.6;
  cursor: default;
}
.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.btn-danger {
  background: #fff;
  border-color: var(--err);
  color: var(--err);
}
.btn-ghost {
  background: transparent;
}
.btn-lg {
  padding: 14px 26px;
  font-size: 16px;
  border-radius: 12px;
}
.btn-small {
  padding: 6px 10px;
  min-height: auto;
  font-size: 13px;
}
.btn .icon-btn-danger {
  color: var(--err);
}

/* ---------- Builder layout ---------- */
.builder {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(400px, 1.05fr);
  gap: 28px;
  padding-top: 36px;
  padding-bottom: 60px;
  align-items: start;
}

/* ---------- Editor ---------- */
.editor {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.remember-row {
  margin-top: 4px;
}
.privacy-inline {
  font-size: 13px;
  color: var(--muted);
  margin: 8px 0 0;
}
.check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  cursor: pointer;
}
.check input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

/* Card / section */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.section-head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: var(--font-ui);
}
.section-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}
.section-chev {
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(225deg);
  transition: transform 0.15s;
}
.section.open .section-chev {
  transform: rotate(45deg);
}
.section-body {
  display: none;
  padding: 4px 18px 20px;
}
.section.open .section-body {
  display: block;
}

/* forms */
.grid {
  display: grid;
  gap: var(--sp-4);
}
.grid-2 {
  grid-template-columns: 1fr 1fr;
}
.grid-3 {
  grid-template-columns: 1fr 1fr 1fr;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.field-label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  line-height: 1.3;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  height: var(--input-h);
  padding: 10px 13px;
  border: 1px solid var(--border);
  border-radius: var(--input-r);
  font-size: 14px;
  font-family: var(--font-ui);
  color: var(--text);
  background: #fff;
  transition: border-color 0.12s, box-shadow 0.12s;
}
.field select {
  padding-inline-start: 12px;
  padding-inline-end: 34px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: calc(100% - 11px) 50%;
}
[dir='rtl'] .field select {
  background-position: calc(0% + 11px) 50%;
}
.field input:hover,
.field select:hover,
.field textarea:hover,
.line-row input:hover,
.line-row select:hover {
  border-color: #cbd5e1;
}
.field input:focus,
.field select:focus,
.field textarea:focus,
input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
.field textarea {
  resize: vertical;
  min-height: 84px;
  height: auto;
  line-height: 1.5;
}
.field input[type='color'] {
  padding: 4px;
  height: var(--input-h);
  width: 54px;
  cursor: pointer;
  flex: 0 0 auto;
}

.input-btn {
  display: flex;
  gap: 6px;
}
.input-btn input {
  flex: 1;
}

.range-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.range-row .field-label {
  white-space: nowrap;
}
.range-val {
  min-width: 40px;
  text-align: end;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.range {
  flex: 1;
  accent-color: var(--accent);
  min-width: 0;
}

.logo-controls {
  margin-bottom: 16px;
}
.logo-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
.logo-preview {
  width: 96px;
  height: 60px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  overflow: hidden;
}
.logo-preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.logo-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: end;
}
.hint {
  font-size: 12.5px;
  color: var(--muted);
  margin: 6px 0 0;
}

/* Section inner sub-blocks */
.subblock {
  padding: 14px 0;
  border-top: 1px solid var(--border);
}
.subblock:first-child {
  border-top: none;
  padding-top: 4px;
}
.toggle-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

/* tooltip */
.tooltip {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #eef0f3;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: help;
  position: relative;
  flex: 0 0 auto;
}
.tooltip::after {
  content: attr(aria-label);
  position: absolute;
  bottom: 130%;
  left: 50%;
  transform: translateX(-50%);
  background: #111827;
  color: #fff;
  padding: 7px 10px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 400;
  width: 220px;
  text-align: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
  z-index: 10;
}
.tooltip:hover::after,
.tooltip:focus::after {
  opacity: 1;
}

/* ---------- Lines table ---------- */
.lines-table {
  min-width: 0;
}
.lines-head {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) 58px 84px 100px 82px 104px 150px;
  gap: 6px;
  padding: 0 2px 8px;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}
.lines-head .h-actions {
  text-align: end;
}
#line-container,
#lines-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.line-row {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) 58px 84px 100px 82px 104px 150px;
  gap: 6px;
  align-items: start;
}
.line-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.line-cell input,
.line-cell select {
  width: 100%;
  height: var(--input-h);
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: var(--input-r);
  font-size: 13.5px;
  font-family: var(--font-ui);
  color: var(--text);
  background: #fff;
  transition: border-color 0.12s;
}
.line-cell select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  padding-inline-end: 30px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: calc(100% - 9px) 50%;
}
[dir='rtl'] .line-cell select {
  background-position: calc(0% + 9px) 50%;
}
.line-cell input:focus,
.line-cell select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
.amount-val {
  font-weight: 700;
  font-size: 13.5px;
  white-space: nowrap;
  text-align: right;
  height: var(--input-h);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-inline-end: 2px;
}
[dir='rtl'] .amount-val {
  text-align: left;
  justify-content: flex-start;
}
.line-actions {
  display: flex;
  gap: 4px;
  justify-content: flex-end;
  flex-wrap: wrap;
}
.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
  line-height: 1;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.12s, border-color 0.12s, background 0.12s;
}
.icon-btn svg {
  flex: 0 0 auto;
}
.icon-btn:hover:not(:disabled) {
  color: var(--text);
  border-color: #9ca3af;
  background: #f9fafb;
}
.icon-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.icon-btn:disabled {
  opacity: 0.35;
  cursor: default;
}
.icon-danger:hover:not(:disabled) {
  color: var(--err);
  border-color: var(--err);
  background: #fef2f2;
}
.add-line {
  margin-top: 14px;
}
.mob-label {
  display: none;
}

/* ---------- Totals ---------- */
.totals {
  padding: 16px 0 4px;
}
.tot-row {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
  font-size: 14px;
}
.tot-grand {
  font-weight: 800;
  font-size: 16px;
  border-top: 2px solid var(--border);
  margin-top: 6px;
  padding-top: 10px;
}

/* checklist */
.checklist {
  margin-top: 16px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}
.check-header {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 10px;
}
.check-status {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}
.check-status.ok {
  color: var(--ok);
  font-weight: 600;
}
.check-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 3px 0;
  font-size: 13.5px;
}
.check-mark {
  font-weight: 800;
  width: 14px;
  flex: 0 0 auto;
}
.check-ok .check-mark {
  color: var(--ok);
}
.check-ok .check-name {
  color: #374151;
  text-decoration: line-through;
  text-decoration-color: #9ca3af;
}
.check-warn .check-mark {
  color: var(--warn);
}
.check-warn .warn-text {
  color: var(--warn);
  font-size: 12.5px;
  margin-inline-start: 12px;
}

/* ---------- Design ---------- */
.design-block {
  padding: 16px 0;
}
.design-block + .design-block {
  border-top: 1px solid var(--border);
}
.design-block > .field-label {
  margin-bottom: 10px;
  display: block;
}
.design-intro {
  margin: 0 0 4px;
}
.tmpl-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 10px;
}
.tmpl-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-ui);
  transition: border-color 0.12s, box-shadow 0.12s;
  min-width: 0;
}
[dir='rtl'] .tmpl-card {
  text-align: right;
}
.tmpl-card:hover {
  border-color: #9ca3af;
}
.tmpl-card.selected {
  border-color: var(--tt, var(--accent));
  box-shadow: 0 0 0 2px var(--tt, var(--accent));
}
.tmpl-thumb {
  display: block;
  width: 100%;
  border: 1px solid #eef0f3;
  border-radius: 8px;
  background: #fff;
  overflow: hidden;
  aspect-ratio: 210 / 160;
}
.tmpl-thumb .thumb {
  display: block;
  width: 100%;
  height: 100%;
}
.tmpl-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.tmpl-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}
.tmpl-desc {
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.3;
}
.swatch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin: 12px 0;
}
.swatch {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px var(--border);
  background: var(--sw);
  cursor: pointer;
  padding: 0;
  transition: transform 0.1s, box-shadow 0.1s;
}
.swatch:hover {
  transform: scale(1.08);
}
.swatch.active {
  box-shadow: 0 0 0 2px #fff, 0 0 0 4px var(--accent);
}
.color-custom {
  display: flex;
  align-items: center;
  gap: 12px;
}
.color-picker {
  width: 54px !important;
  height: var(--input-h) !important;
  padding: 4px !important;
  flex: 0 0 auto;
  cursor: pointer;
}
.color-hex {
  flex: 1;
  height: var(--input-h);
  padding: 10px 13px;
  border: 1px solid var(--border);
  border-radius: var(--input-r);
  font-size: 14px;
  font-family: var(--font-ui);
  color: var(--text);
  background: #fff;
  letter-spacing: 0.3px;
}
.color-hex:focus {
  outline: 2px solid var(--accent);
  border-color: var(--accent);
}
.design-block .field select {
  height: var(--input-h);
  padding: 10px 34px 10px 12px;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: calc(100% - 11px) 50%;
}
[dir='rtl'] .design-block .field select {
  background-position: calc(0% + 11px) 50%;
}
.logo-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.logo-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.logo-preview {
  width: 96px;
  height: 64px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px;
  overflow: hidden;
}
.logo-preview img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

/* ---------- Preview ---------- */
.preview-col {
  position: sticky;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.preview-toolbar {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}
.preview-actions {
  display: flex;
  gap: 10px;
}
.zoom-controls {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  background: #eef0f3;
  padding: 3px;
  border-radius: 10px;
}
.zoom-btn {
  border: none;
  background: transparent;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
}
.zoom-btn:hover {
  background: #fff;
  color: var(--text);
  box-shadow: 0 1px 2px rgba(16, 24, 40, 0.12);
}
.zoom-btn.zoom-fit {
  font-size: 14px;
}
.zoom-pct {
  min-width: 44px;
  text-align: center;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.preview-frame {
  background: #d9dde3;
  border-radius: 14px;
  padding: 22px;
  display: flex;
  justify-content: center;
  overflow: auto;
  --pz: 1;
}

/* A4 paper */
.invoice-page {
  width: 794px;
  zoom: var(--pz, 1);
  flex: 0 0 auto;
  aspect-ratio: 210 / 297;
  background: #fff;
  box-shadow: 0 8px 30px rgba(16, 24, 40, 0.18);
  border-radius: 2px;
  font-size: 12px;
  line-height: 1.45;
  color: #1f2937;
  display: flex;
  flex-direction: column;
  --brand: #1f2a3a;
}
.doc {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

/* shared content */
.inv-logo {
  display: block;
  object-fit: contain;
  margin-bottom: 16px;
  max-width: 100%;
}
.inv-line {
  line-height: 1.55;
  overflow-wrap: break-word;
  word-wrap: break-word;
  min-width: 0;
}
.inv-title {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 1px;
  margin-bottom: 14px;
  color: var(--brand);
}
.inv-meta {
  min-width: 190px;
  text-align: start;
}
.meta-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 2px 0;
}
.meta-k {
  color: #6b7280;
  font-size: 11px;
  white-space: nowrap;
}
.meta-v {
  font-weight: 600;
  font-size: 12px;
  color: #111827;
  text-align: end;
  overflow-wrap: break-word;
  min-width: 0;
}

/* invoice to */
.inv-to {
  margin-bottom: 22px;
}
.inv-to-title {
  font-weight: 700;
  font-size: 11px;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.muted {
  color: #9ca3af;
}

/* table */
.inv-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 11.5px;
  table-layout: fixed;
}
.inv-table th {
  text-align: left;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: #6b7280;
  border-bottom: 2px solid #e5e7eb;
  padding: 8px 8px;
  white-space: normal;
}
.inv-table td {
  padding: 9px 8px;
  border-bottom: 1px solid #eef0f3;
  vertical-align: top;
}
.inv-table .c-desc { width: 40%; }
.inv-table .c-qty { width: 8%; }
.inv-table .c-unit { width: 10%; }
.inv-table .c-price { width: 14%; }
.inv-table .c-vat { width: 13%; }
.inv-table .c-amount { width: 15%; }
.inv-table .c-qty,
.inv-table .c-price,
.inv-table .c-vat,
.inv-table .c-amount,
.inv-table th.c-qty,
.inv-table th.c-price,
.inv-table th.c-vat,
.inv-table th.c-amount {
  text-align: right;
}
.c-desc span {
  display: block;
  overflow-wrap: break-word;
  word-wrap: break-word;
  overflow: hidden;
}
.inv-notice {
  margin-top: 12px;
  background: #f3f4f6;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 11px;
  color: #374151;
}

/* totals */
.inv-totals {
  margin-inline-start: auto;
  width: 100%;
  max-width: 55%;
  margin-top: 26px;
  margin-bottom: 8px;
}
.inv-totals .tot-row {
  padding: 3px 0;
  font-size: 12px;
}
.inv-totals .tot-grand {
  border-top: 2px solid #e2e6ea;
  font-weight: 800;
  font-size: 14px;
  margin-top: 5px;
  padding-top: 8px;
}

/* payment */
.inv-payment {
  margin-top: auto;
  border-top: 2px solid #111827;
  padding-top: 14px;
  font-size: 11px;
}
.inv-pay-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
}
.inv-pay-title {
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-size: 11px;
  margin-bottom: 6px;
}
.inv-pay-text {
  margin: 0 0 10px;
  color: #374151;
  max-width: 70%;
}
.inv-pay-bank {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.inv-pay-bank .meta-v {
  font-weight: 600;
}
.inv-pay-bank .meta-k {
  font-size: 10.5px;
}
.inv-pay-qr {
  flex: 0 0 auto;
}
.inv-pay-qr img {
  display: block;
  width: 80px;
  height: 80px;
  border: 1px solid #e5e7eb;
  border-radius: 4px;
  background: #fff;
}
.qr-check {
  margin-bottom: 8px;
}

/* ============ TEMPLATE: BUSINESS ============ */
.doc-pad {
  padding-inline: 58px;
}
.biz-band {
  background: var(--brand);
  color: #fff;
  padding-block: 44px 36px;
}
.biz-cols {
  display: flex;
  justify-content: space-between;
  gap: 26px;
  align-items: flex-start;
}
.biz-brand {
  flex: 1.25;
  min-width: 0;
}
.biz-company {
  font-weight: 700;
  font-size: 13.5px;
  margin-top: 12px;
}
.biz-company-meta {
  margin-top: 10px;
  font-size: 11px;
  opacity: 0.85;
}
.biz-meta {
  flex: 1;
  min-width: 200px;
  text-align: end;
}
.biz-band .inv-title {
  color: #fff;
}
.biz-band .meta-k {
  color: rgba(255, 255, 255, 0.82);
}
.biz-band .meta-v {
  color: #fff;
  font-weight: 600;
}
.biz-body {
  padding-block: 36px 40px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.business .inv-table th {
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 4px;
}

/* ============ TEMPLATE: STUDIO ============ */
.studio-grid {
  flex: 1;
  display: grid;
  grid-template-columns: 22% 1fr;
  min-height: 0;
}
.studio-side {
  background: var(--brand);
  color: #fff;
  padding: 44px 26px;
  overflow: hidden;
  min-width: 0;
}
.studio-brand .inv-logo {
  margin-bottom: 18px;
}
.studio-name {
  font-weight: 700;
  font-size: 14px;
  line-height: 1.45;
  overflow-wrap: break-word;
}
.studio-contact {
  margin-top: 26px;
  font-size: 11px;
  opacity: 0.9;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.studio-main {
  padding: 40px 52px 40px 40px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.studio-head {
  display: flex;
  justify-content: space-between;
  gap: 22px;
  align-items: flex-start;
  margin-bottom: 10px;
}
.studio-head .inv-title {
  color: var(--brand);
}
.studio-head .inv-meta {
  text-align: end;
}
.studio .inv-table th {
  background: var(--brand);
  color: #fff;
  border: none;
}

/* ============ TEMPLATE: CLEAN ============ */
.doc-pad.clean-body {
  padding-block: 48px 44px;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.clean-head {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: flex-start;
}
.clean-brand {
  font-weight: 700;
  font-size: 13.5px;
  min-width: 0;
}
.clean-company-meta {
  margin-top: 10px;
  opacity: 0.72;
  font-size: 11px;
  font-weight: 400;
}
.clean-meta {
  min-width: 200px;
  text-align: end;
}
.clean-meta .inv-title {
  color: var(--brand);
}
.clean-rule {
  height: 2px;
  background: var(--brand);
  margin: 26px 0 30px;
  width: 100%;
}
.clean .inv-table th {
  background: transparent;
  color: #111827;
  border-bottom: 1px solid #111827;
}
.clean .inv-payment {
  border-top-color: #1f2937;
}

/* RTL preview adjustments */
.invoice-page[dir='rtl'] .inv-meta,
.invoice-page[dir='rtl'] .meta-row .meta-v {
  text-align: left;
}
.invoice-page[dir='rtl'] .biz-meta,
.invoice-page[dir='rtl'] .studio-head .inv-meta,
.invoice-page[dir='rtl'] .clean-meta {
  text-align: left;
}
.invoice-page[dir='rtl'] .inv-table th {
  text-align: right;
}
.invoice-page[dir='rtl'] .inv-table th.c-qty,
.invoice-page[dir='rtl'] .inv-table th.c-price,
.invoice-page[dir='rtl'] .inv-table th.c-vat,
.invoice-page[dir='rtl'] .inv-table th.c-amount,
.invoice-page[dir='rtl'] .inv-table td.c-qty,
.invoice-page[dir='rtl'] .inv-table td.c-price,
.invoice-page[dir='rtl'] .inv-table td.c-vat,
.invoice-page[dir='rtl'] .inv-table td.c-amount {
  text-align: left;
}

/* ---------- Info ---------- */
.info {
  padding: 30px 20px 50px;
}
.info-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.info-block h2 {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 16px;
}
.steps,
.checks {
  margin: 0;
  padding-inline-start: 18px;
  color: #374151;
  font-size: 15px;
}
.steps li,
.checks li {
  padding: 5px 0;
}

/* ---------- FAQ ---------- */
.faq {
  padding: 10px 20px 60px;
  max-width: 760px;
}
.faq h2 {
  font-size: 22px;
  font-weight: 800;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.faq-q {
  width: 100%;
  text-align: start;
  padding: 14px 18px;
  background: transparent;
  border: none;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-ui);
  cursor: pointer;
  color: var(--text);
}
.faq-a {
  padding: 0 18px 16px;
  color: var(--muted);
  font-size: 14px;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 20px 40px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}
.privacy {
  color: var(--muted);
  font-size: 13px;
  margin: 0;
}
.footer-credit {
  margin: 0;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text);
}
.footer-credit.powered {
  font-weight: 400;
  color: var(--muted);
}
.credit-orovia {
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--brand);
  text-decoration: none;
  cursor: pointer;
}
.credit-orovia:hover {
  text-decoration: underline;
}

/* ---------- Mobile bar ---------- */
.mobile-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 60;
  display: none;
  gap: 10px;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, 0.95);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.mobile-bar .btn {
  flex: 1;
}

/* ---------- Dialog ---------- */
.dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(17, 24, 39, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.dialog {
  background: #fff;
  border-radius: 14px;
  padding: 26px;
  max-width: 400px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}
.dialog h3 {
  margin: 0 0 10px;
  font-size: 18px;
}
.dialog p {
  margin: 0 0 20px;
  color: var(--muted);
}
.dialog-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translate(-50%, 20px);
  background: #111827;
  color: #fff;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 200;
}
.toast.show {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* ---------- Responsive ---------- */
@media (max-width: 1120px) {
  .builder {
    grid-template-columns: 1fr;
  }
  .preview-col {
    position: static;
  }
}

@media (max-width: 1000px) {
  .preview-frame {
    padding: 14px;
  }
  .grid-3 {
    grid-template-columns: 1fr 1fr;
  }
  .tmpl-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .main-nav {
    display: none;
  }
  .hero {
    padding: 44px 0 34px;
  }
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .lines-head {
    display: none;
  }
  .line-row {
    grid-template-columns: 1fr;
    gap: 12px;
    background: #f9fafb;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px;
    align-items: stretch;
  }
  .line-cell select,
  .line-cell input,
  .amount-val {
    height: 46px;
  }
  .mob-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--muted);
  }
  .line-actions {
    justify-content: flex-start;
    gap: 8px;
    border-top: 1px solid var(--border);
    padding-top: 12px;
  }
  .icon-btn {
    width: 46px;
    height: 46px;
  }
  .info-cols {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .mobile-bar {
    display: flex;
  }
  body {
    padding-bottom: 84px;
  }
  .preview-toolbar {
    margin-bottom: 4px;
  }
}

/* ---------- Print ---------- */
@media print {
  @page {
    size: A4;
    margin: 0;
  }
  html,
  body {
    background: #fff;
  }
  body * {
    visibility: hidden;
  }
  .preview-frame,
  .preview-frame *,
  .invoice-page,
  .invoice-page * {
    visibility: visible;
  }
  .preview-frame {
    position: absolute;
    left: 0;
    top: 0;
    width: 210mm;
    padding: 0;
    background: none;
    border-radius: 0;
    box-shadow: none;
    overflow: hidden;
  }
  .invoice-page {
    width: 210mm;
    height: auto;
    aspect-ratio: auto;
    zoom: 1 !important;
    box-shadow: none;
    font-size: 12px;
    border-radius: 0;
  }
  .doc {
    overflow: hidden;
  }
}

/* ---------- Theme toggle button ---------- */
.theme-toggle {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 6px 12px;
  border-radius: 9px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.6px;
  font-family: var(--font-ui);
  cursor: pointer;
  transition: 0.2s;
  white-space: nowrap;
}
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--muted);
}
.theme-toggle[aria-pressed='true'] {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

/* ---------- OROVIA (luxury dark & gold) theme ---------- */
body.theme-orovia {
  --bg: #0b0f14;
  --card: #12181f;
  --border: #2a303a;
  --text: #eef1f5;
  --muted: #98a2b3;
  --brand: #c9a227;
  --accent: #d4af37;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.4);
}
body.theme-orovia .site-header {
  background: rgba(11, 15, 20, 0.92);
}
body.theme-orovia .hero {
  background: radial-gradient(1200px 500px at 50% -10%, rgba(201, 162, 39, 0.16), transparent 65%), linear-gradient(180deg, #0f141b 0%, var(--bg) 100%);
}
body.theme-orovia .hero h1 {
  color: #f7f3e7;
}
body.theme-orovia .brand-mark {
  background: linear-gradient(135deg, #d4af37, #a8841c);
  color: #0b0f14;
}
body.theme-orovia .lang-switcher {
  background: #1a212a;
}
body.theme-orovia .lang-btn.active {
  background: #fff;
  color: #0b0f14;
}
body.theme-orovia .theme-toggle[aria-pressed='true'] {
  background: linear-gradient(135deg, #d4af37, #a8841c);
  border-color: #d4af37;
  color: #0b0f14;
}
body.theme-orovia .btn {
  background: #1a212a;
  border-color: #333b47;
  color: var(--text);
}
body.theme-orovia .btn-primary {
  background: linear-gradient(135deg, #d4af37, #a8841c);
  border-color: #d4af37;
  color: #0b0f14;
}
body.theme-orovia .btn-ghost {
  background: transparent;
}
body.theme-orovia .zoom-controls {
  background: #1a212a;
}
body.theme-orovia .zoom-btn {
  color: var(--muted);
}
body.theme-orovia .zoom-btn:hover {
  background: #232b35;
  color: var(--text);
}
body.theme-orovia .preview-frame {
  background: #0a0d12;
}
body.theme-orovia .footer-credit.powered {
  color: var(--muted);
}
body.theme-orovia .credit-orovia {
  color: #d4af37;
}
body.theme-orovia .dialog {
  background: #12181f;
}
body.theme-orovia .mobile-bar {
  background: rgba(11, 15, 20, 0.95);
}
/* dark form fields so text stays visible in OROVIA theme */
body.theme-orovia .field input,
body.theme-orovia .field select,
body.theme-orovia .field textarea,
body.theme-orovia .line-cell input,
body.theme-orovia .line-cell select,
body.theme-orovia .color-hex {
  background: #0d131a;
  border-color: #333b47;
  color: var(--text);
}
body.theme-orovia .field input::placeholder,
body.theme-orovia .field textarea::placeholder,
body.theme-orovia .line-cell input::placeholder {
  color: #7b8598;
  opacity: 1;
}
body.theme-orovia .field select,
body.theme-orovia .line-cell select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2398a2b3' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: calc(100% - 11px) 50%;
}
body.theme-orovia .field input:hover,
body.theme-orovia .field select:hover,
body.theme-orovia .field textarea:hover,
body.theme-orovia .line-cell input:hover,
body.theme-orovia .line-cell select:hover {
  border-color: #4b5563;
}
body.theme-orovia .field input[type='date'] {
  color-scheme: dark;
}
body.theme-orovia .color-picker {
  background: #0d131a;
  border-color: #333b47;
}
body.theme-orovia .amount-val {
  color: var(--text);
}