*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f3f4f6;
  color: #111827;
}

body {
  min-height: 100vh;
}

.app-shell {
  max-width: 1200px;
  margin: 1.25rem auto 2rem;
  padding: 0 1rem 2rem;
  background: #ffffff;
  border-radius: 1.25rem;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.16);
  color: #111827;
}

.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem 1rem;
  border-bottom: 1px solid rgba(209, 213, 219, 0.9);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo-circle {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: radial-gradient(circle at 20% 20%, #22d3ee, #6366f1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 700;
  color: white;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.7);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-weight: 600;
  font-size: 1rem;
  color: #0f172a;
}

.brand-subtitle {
  font-size: 0.8rem;
  color: #6b7280;
}

.top-nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.lang-toggle {
  padding: 0.35rem 0.6rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: #6b7280;
  background: transparent;
  border: 1px solid rgba(209, 213, 219, 0.9);
  border-radius: 999px;
  cursor: pointer;
  margin-right: 0.25rem;
}
.lang-toggle:hover {
  background: #f3f4f6;
  color: #111827;
}

.nav-tab {
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 0.4rem 0.9rem;
  font-size: 0.82rem;
  background: transparent;
  color: #4b5563;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: all 0.18s ease-out;
}

.nav-tab:hover {
  background: rgba(243, 244, 246, 0.9);
  border-color: rgba(209, 213, 219, 1);
}

.nav-tab.active {
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  color: white;
  border-color: transparent;
  box-shadow: 0 12px 30px rgba(59, 130, 246, 0.45);
}

.main-layout {
  display: grid;
  grid-template-columns: minmax(260px, 320px) minmax(0, 1fr);
  gap: 1.25rem;
  padding: 1.25rem 1.5rem 1.5rem;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.panel {
  background: #ffffff;
  border-radius: 0.9rem;
  padding: 1rem 1rem 1.1rem;
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.06);
  border: 1px solid rgba(209, 213, 219, 0.9);
}

.panel-title {
  margin: 0 0 0.75rem;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: #111827;
}

.panel-header-with-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.preview-hint {
  font-size: 0.78rem;
  color: #9ca3af;
}

.document-from-label {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  color: #6b7280;
  font-weight: 500;
}
.document-from-label:empty {
  display: none;
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.6rem;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

label {
  font-size: 0.75rem;
  font-weight: 500;
  color: #6b7280;
}

input[type="text"],
input[type="email"],
input[type="date"],
input[type="number"],
select,
textarea {
  border-radius: 0.6rem;
  border: 1px solid rgba(209, 213, 219, 1);
  padding: 0.45rem 0.6rem;
  font-size: 0.82rem;
  background: #ffffff;
  color: #111827;
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

input[type="file"] {
  font-size: 0.78rem;
  color: #4b5563;
}

input::placeholder,
textarea::placeholder {
  color: #9ca3af;
}

input:focus,
select:focus,
textarea:focus {
  border-color: #38bdf8;
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.7);
  background: #f9fafb;
}

select {
  cursor: pointer;
}

textarea {
  resize: vertical;
  min-height: 68px;
}

.field-group textarea {
  width: 100%;
}

.btn {
  border-radius: 999px;
  border: none;
  padding: 0.5rem 0.95rem;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  transition: background 0.16s ease, color 0.16s ease, box-shadow 0.16s ease, transform 0.08s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-0.5px);
}

.btn:active {
  transform: translateY(0.5px) scale(0.99);
}

.btn.primary {
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  color: white;
}

.btn.primary:hover {
  box-shadow: none;
}

.btn.secondary {
  background: #ffffff;
  border: 1px solid rgba(209, 213, 219, 1);
  color: #111827;
}

.btn.secondary:hover {
  background: #f3f4f6;
}

.btn.ghost {
  background: transparent;
  border: 1px solid rgba(209, 213, 219, 0.9);
  color: #111827;
}

.btn.ghost:hover {
  background: #f9fafb;
}

.btn.success {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  color: white;
}

.btn.small {
  padding: 0.35rem 0.75rem;
  font-size: 0.76rem;
}

.btn.full-width {
  width: 100%;
}

.button-stack {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.table-wrapper {
  width: 100%;
  overflow-x: auto;
  border-radius: 0.75rem;
  border: 1px solid rgba(209, 213, 219, 1);
  background: #ffffff;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

th,
td {
  padding: 0.4rem 0.55rem;
  text-align: left;
  border-bottom: 1px solid rgba(229, 231, 235, 1);
}

thead tr {
  background: #f9fafb;
}

thead th {
  font-weight: 500;
  color: #374151;
  white-space: nowrap;
}

tbody tr:nth-child(even) {
  background: #f9fafb;
}

tbody tr:nth-child(odd) {
  background: #ffffff;
}

tbody tr:hover {
  background: rgba(191, 219, 254, 0.6);
}

td input,
td select {
  width: 100%;
}

.items-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.5rem;
}

.item-total-cell {
  width: 100%;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.common-items-panel {
  margin-top: 0.5rem;
}

.common-items-label {
  display: block;
  font-size: 0.76rem;
  color: #6b7280;
  margin-bottom: 0.25rem;
}

.common-items-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.common-item-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  border: 1px solid rgba(209, 213, 219, 1);
  background: #ffffff;
  font-size: 0.75rem;
  cursor: pointer;
}

.common-item-chip button {
  border: none;
  background: transparent;
  font-size: 0.7rem;
  cursor: pointer;
  color: #9ca3af;
}

.totals-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
  gap: 1rem;
  margin-top: 0.8rem;
}

.totals {
  background: linear-gradient(135deg, rgba(239, 246, 255, 0.9), #ffffff);
  border-radius: 0.75rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid rgba(191, 219, 254, 1);
}

.total-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: #111827;
  margin-bottom: 0.25rem;
}

.discount-input {
  max-width: 80px;
  text-align: right;
}

.total-row.grand {
  font-weight: 700;
  font-size: 0.92rem;
  color: #111827;
}

.total-row span:last-child {
  font-variant-numeric: tabular-nums;
}

.total-row.words {
  font-size: 0.78rem;
  flex-direction: column;
  align-items: flex-start;
}

.total-row.words span:last-child {
  font-variant-numeric: normal;
  font-weight: 500;
}

#document-preview-wrapper {
  display: flex;
  justify-content: center;
  overflow-x: auto;
}

.document-a4 {
  position: relative;
  width: 100%;
  max-width: 800px;
  background: white;
  color: #111827;
  padding: 32px 32px 40px;
  border-radius: 0.75rem;
  box-shadow: 0 22px 60px rgba(15, 23, 42, 0.8);
  overflow: hidden;
}

.watermark {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 0;
}

.watermark img {
  max-width: 55%;
  max-height: 55%;
  width: auto;
  height: auto;
  object-fit: contain;
  opacity: 0.1;
  pointer-events: none;
}

.doc-header,
.doc-section,
.doc-footer {
  position: relative;
  z-index: 1;
}

.doc-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2.5rem;
  border-bottom: 2px solid #e5e7eb;
  padding-bottom: 16px;
  margin-bottom: 16px;
}

.doc-logo-box {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.company-logo {
  /* Square-ish logo similar to screenshot */
  width: 140px;
  height: 140px;
  object-fit: contain;
}

.doc-company-text {
  text-align: center;
}

.doc-company-text h1 {
  margin: 0 0 4px;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
}

.doc-company-text p {
  margin: 0;
  font-size: 0.78rem;
  color: #4b5563;
  text-align: center;
}

.doc-company-extra {
  margin-top: 4px;
  font-size: 0.78rem;
  color: #4b5563;
  text-align: center;
}

.doc-meta-card {
  /* Green quotation box on the right, aligned with title */
  min-width: 160px;
  max-width: 160px;
  width: 160px;
  background: #16a34a;
  border-radius: 0.75rem;
  padding: 8px 10px;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  box-shadow: none;
  min-height: 120px;
}

.doc-company-text {
  text-align: center;
  flex: 1;
}

#terms {
  /* Form textarea: full width, medium height as per mockup */
  min-height: 96px;
  width: 100%;
}

.doc-dealers-line {
  margin-top: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  text-align: center;
}

.doc-type {
  font-weight: 800;
  letter-spacing: 0.14em;
  font-size: 0.9rem;
  text-align: center;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.doc-meta-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.doc-meta-field {
  background: #f9fafb;
  border-radius: 0.5rem;
  padding: 4px 6px;
  color: #111827;
  display: flex;
  flex-direction: column;
}

.doc-meta-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #6b7280;
}

.doc-meta-value {
  font-size: 0.8rem;
  font-weight: 600;
}

.doc-section-title {
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 6px;
  color: #111827;
}

.doc-client-section {
  margin-bottom: 10px;
}

.doc-client-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 24px;
  font-size: 0.78rem;
}

.doc-label {
  font-size: 0.72rem;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.doc-value {
  font-size: 0.8rem;
  min-height: 1rem;
}

.doc-letter-body {
  font-size: 0.8rem;
  white-space: pre-wrap;
  border-radius: 0.35rem;
  border: 1px solid #e5e7eb;
  padding: 8px;
  background: #f9fafb;
  min-height: 80px;
}

.doc-items-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}

.doc-items-table th,
.doc-items-table td {
  border: 1px solid #e5e7eb;
  padding: 4px 6px;
}

.doc-items-table thead {
  background: #f9fafb;
}

.doc-items-table th {
  font-weight: 600;
  text-align: left;
}

.doc-items-table td:nth-child(1),
.doc-items-table td:nth-child(3),
.doc-items-table td:nth-child(4),
.doc-items-table td:nth-child(5) {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.doc-items-table th:nth-child(1),
.doc-items-table th:nth-child(3),
.doc-items-table th:nth-child(4),
.doc-items-table th:nth-child(5) {
  text-align: right;
}

.doc-totals-section {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(0, 1fr);
  gap: 16px;
  margin-top: 12px;
  align-items: flex-start;
}

.doc-terms {
  font-size: 0.78rem;
}

.doc-terms-text {
  border-radius: 0.35rem;
  background: #f9fafb;
  padding: 8px;
  border: 1px dashed #e5e7eb;
  /* Make terms box in preview visually taller, matching mockup */
  min-height: 80px;
  white-space: pre-wrap;
}

.doc-bank {
  margin-top: 8px;
  font-size: 0.78rem;
}

.doc-bank-text {
  border-radius: 0.35rem;
  background: #f9fafb;
  padding: 8px;
  border: 1px solid #e5e7eb;
  min-height: 40px;
  white-space: pre-wrap;
}

.doc-totals-box {
  border-radius: 0.5rem;
  border: 1px solid #bfdbfe;
  padding: 10px 12px;
  background: linear-gradient(135deg, #eff6ff, #ffffff);
}

.doc-total-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  margin-bottom: 4px;
}

.doc-total-row.grand {
  font-weight: 800;
  font-size: 0.9rem;
}

.doc-total-row span:last-child {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.doc-amount-words {
  margin-top: 6px;
  font-size: 0.78rem;
}

.doc-amount-words-label {
  font-weight: 600;
}

.doc-amount-words-value {
  display: block;
  margin-top: 2px;
  word-break: break-word;
}

.company-extra-list {
  margin-top: 0.35rem;
  font-size: 0.76rem;
  color: #4b5563;
}

.company-extra-list-item {
  display: flex;
  justify-content: space-between;
  gap: 0.35rem;
}

.company-extra-list-item span:first-child {
  font-weight: 500;
}

.share-copy {
  font-size: 0.8rem;
  color: #4b5563;
  margin: 0 0 0.6rem;
}

.share-copy.small {
  font-size: 0.76rem;
  color: #6b7280;
}

.doc-signature-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 18px;
}

.doc-signature-block {
  flex: 1;
  font-size: 0.78rem;
}

.doc-signature-lines-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
  margin-top: 8px;
}

.signature-line {
  border-bottom: 1px solid #d1d5db;
  height: 20px;
}

.doc-footer {
  border-top: 1px solid #e5e7eb;
  margin-top: 20px;
  padding-top: 10px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

/* Auth overlay */
#auth-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  box-sizing: border-box;
  overflow-y: auto;
}

.auth-overlay-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(2px);
}

.auth-dialog {
  position: relative;
  background: #ffffff;
  border-radius: 1rem;
  padding: 1.25rem 1.25rem;
  width: 100%;
  max-width: min(420px, calc(100vw - 2rem));
  min-width: 0;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.3);
  border: 1px solid rgba(209, 213, 219, 0.9);
  box-sizing: border-box;
  overflow-wrap: break-word;
}

.auth-dialog h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.auth-intro {
  margin: 0 0 0.9rem;
  font-size: 0.85rem;
  color: #4b5563;
  word-wrap: break-word;
  overflow-wrap: break-word;
  line-height: 1.4;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  min-width: 0;
}

.auth-form label {
  font-size: 0.8rem;
  color: #4b5563;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.auth-form .btn.full-width {
  min-width: 0;
  width: 100%;
  box-sizing: border-box;
}

.auth-checkbox {
  flex-direction: row !important;
  align-items: center;
  gap: 0.4rem !important;
}

.auth-checkbox input {
  width: auto;
}

.admin-intro {
  font-size: 0.85rem;
  color: #4b5563;
  margin-bottom: 1rem;
  line-height: 1.4;
}

.invite-logo-filename {
  display: block;
  font-size: 0.8rem;
  color: #6b7280;
  margin-top: 0.25rem;
}

.field-hint {
  display: block;
  font-size: 0.75rem;
  color: #9ca3af;
  margin-top: 0.2rem;
}

.admin-invite-result {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid #e5e7eb;
}

.admin-invite-result label {
  display: block;
  font-size: 0.8rem;
  color: #4b5563;
  margin-bottom: 0.35rem;
}

.admin-invite-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.admin-invite-url {
  flex: 1;
  min-width: 0;
  font-size: 0.78rem;
  padding: 0.4rem 0.5rem;
  border-radius: 0.5rem;
  border: 1px solid #d1d5db;
  background: #f9fafb;
}

@media (max-width: 480px) {
  #auth-overlay {
    padding: 0.75rem;
    align-items: flex-start;
    padding-top: 2rem;
  }

  .auth-dialog {
    max-width: calc(100vw - 1.5rem);
    padding: 1rem 1rem;
  }

  .auth-dialog h2 {
    font-size: 1rem;
  }

  .auth-intro {
    font-size: 0.8rem;
  }
}

.footer-branding {
  font-size: 0.76rem;
  max-width: 70%;
}

.footer-title {
  font-weight: 600;
  margin-bottom: 2px;
}

.footer-text {
  color: #4b5563;
}

.doc-dealers-footer {
  margin-top: 4px;
  font-size: 0.78rem;
  color: #111827;
  font-weight: 600;
}

.footer-cta-btn {
  border-radius: 999px;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  color: white;
  padding: 0.4rem 0.9rem;
  font-size: 0.78rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.footer-cta-btn:hover {
  filter: brightness(1.05);
}

.tab-view {
  display: none;
}

.tab-view.active {
  display: block;
}

.history-intro {
  font-size: 0.8rem;
  color: #6b7280;
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.history-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.history-summary {
  font-size: 0.78rem;
  color: #4b5563;
  padding-top: 0.4rem;
}

.history-empty {
  font-size: 0.82rem;
  color: #9ca3af;
  padding: 0.6rem 0.4rem;
}

.history-card {
  border-radius: 0.8rem;
  padding: 0.6rem 0.75rem;
  background: linear-gradient(135deg, #eff6ff, #ffffff);
  border: 1px solid rgba(191, 219, 254, 1);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
  display: grid;
  grid-template-columns: 1.3fr 1.2fr 0.9fr;
  gap: 0.4rem 1rem;
  align-items: center;
  font-size: 0.78rem;
}

.history-actions {
  grid-column: 1 / -1;
  display: flex;
  gap: 0.4rem;
  justify-content: flex-end;
}

.history-main-line {
  font-weight: 500;
  color: #111827;
}

.history-meta {
  color: #4b5563;
}

.history-total {
  text-align: right;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  color: #92400e;
}

.history-subtext {
  grid-column: 1 / -1;
  font-size: 0.75rem;
  color: #6b7280;
}

@media (max-width: 960px) {
  .main-layout {
    grid-template-columns: 100%;
  }

  .sidebar {
    order: 2;
  }

  .content {
    order: 1;
  }
}

@media (max-width: 720px) {
  .top-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .field-row {
    grid-template-columns: 1fr;
  }

  .doc-header {
    flex-direction: column;
  }

  .doc-meta {
    text-align: left;
  }

  .doc-client-grid {
    grid-template-columns: 1fr;
  }

  .doc-totals-section {
    grid-template-columns: 1fr;
  }

  .doc-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-branding {
    max-width: 100%;
  }

  .history-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 540px) {
  .document-a4 {
    padding: 20px 16px 24px;
  }

  .app-shell {
    margin: 0.75rem 0.4rem 1.2rem;
    padding: 0.4rem 0.5rem 1.3rem;
  }
}

@media print {
  body {
    background: white;
  }

  .app-shell > .top-nav,
  .sidebar,
  .panel:not(:last-child),
  .tab-view:not(.active),
  .history-tab {
    display: none !important;
  }

  .app-shell {
    box-shadow: none;
    background: white;
    margin: 0;
    padding: 0;
  }

  .main-layout {
    display: block;
    padding: 0;
  }

  #document-preview-wrapper {
    overflow: visible;
  }

  .document-a4 {
    box-shadow: none;
    border-radius: 0;
  }
}