:root {
  --brand-font: ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
  --brand-primary: hsl(209 36% 83%);
  --brand-accent: hsl(180 40% 55%);
  --brand-surface: hsl(195 28% 12%);
  --brand-base-font-size: 16px;
  --border-color: hsl(195 20% 25%);
  --text-color: hsl(180 5% 95%);
  --muted-text: hsl(180 5% 70%);
  --card-color: hsl(195 25% 16%);
  --card-shadow: 0 8px 30px -8px hsl(209 36% 83% / 0.25);
}

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

body {
  margin: 0;
  font-family: var(--brand-font);
  font-size: var(--brand-base-font-size);
  color: var(--text-color);
  background: var(--brand-surface);
}

body.auth-locked {
  overflow: hidden;
}

.auth-gate {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(6px);
  z-index: 999;
}

body.auth-locked .auth-gate {
  display: flex;
}

body.auth-locked .app {
  display: none;
}

.auth-card {
  width: min(420px, 100%);
  background: var(--card-color);
  border-radius: 18px;
  border: 1px solid var(--border-color);
  padding: 24px;
  box-shadow: var(--card-shadow);
  display: grid;
  gap: 16px;
}

.auth-header h1 {
  margin: 0 0 6px;
  font-size: 1.4rem;
}

.auth-header p {
  margin: 0;
  color: var(--muted-text);
}

.auth-form {
  display: grid;
  gap: 14px;
}

.auth-error {
  min-height: 1.1em;
  margin: 0;
  color: #b91c1c;
  font-weight: 600;
}

a {
  color: var(--brand-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.app {
  max-width: 1320px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 20px;
  background: var(--card-color);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  box-shadow: var(--card-shadow);
  margin-bottom: 28px;
  color: var(--text-color);
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: #eef2f7;
  object-fit: contain;
}

.topbar h1 {
  margin: 0 0 4px;
  font-size: 1.4rem;
  color: inherit;
}

.topbar p {
  margin: 0;
  color: var(--muted-text);
  font-size: 0.95rem;
}

.topbar-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

button {
  border: none;
  border-radius: 12px;
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
  background: var(--brand-accent);
  color: var(--brand-surface);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 12px rgba(15, 23, 42, 0.15);
}

button.ghost {
  background: transparent;
  color: var(--brand-primary);
  border: 1px solid var(--brand-primary);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 24px;
  align-self: start;
}

.menu {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.menu-item {
  width: 100%;
  text-align: left;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: var(--card-color);
  font-weight: 600;
  cursor: pointer;
  color: var(--text-color);
}

.menu-item.active {
  background: var(--brand-primary);
  color: var(--brand-surface);
  border-color: transparent;
}

.content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel {
  display: none;
}

.panel.active {
  display: block;
}

.tab-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.tab-button {
  background: var(--card-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 8px 14px;
  font-weight: 600;
  cursor: pointer;
}

.tab-button.active {
  background: var(--brand-primary);
  color: var(--brand-surface);
  border-color: transparent;
}

.tab-panel {
  display: none;
}

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

.card {
  background: var(--card-color);
  border-radius: 18px;
  border: 1px solid var(--border-color);
  padding: 20px;
  box-shadow: var(--card-shadow);
}

.card h2 {
  margin: 0 0 12px;
  font-size: 1.2rem;
}

.summary-card h3 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.hint {
  color: var(--muted-text);
  font-size: 0.9rem;
  margin-top: 8px;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-weight: 600;
  font-size: 0.9rem;
}

label input,
label select,
label textarea {
  font: inherit;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: #fff;
}

label textarea {
  resize: vertical;
}

label.full {
  margin-top: 14px;
}

label.checkbox {
  flex-direction: row;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}

.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 14px;
}

.file-input {
  position: relative;
  overflow: hidden;
  border: 1px dashed var(--border-color);
  border-radius: 12px;
  padding: 8px 14px;
  font-weight: 600;
  color: var(--brand-primary);
  cursor: pointer;
}

.file-input input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

details {
  margin-top: 12px;
}

.key-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 6px 12px;
  margin-top: 8px;
  font-size: 0.85rem;
}

.addons-table {
  margin: 16px 0;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.addons-header,
.addons-row {
  display: grid;
  grid-template-columns: 2fr 1.2fr 0.8fr 1fr 40px;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
}

.addons-header {
  background: var(--brand-surface);
  font-weight: 600;
  font-size: 0.85rem;
}

.addons-row {
  border-top: 1px solid var(--border-color);
}

.addons-row select,
.addons-row input {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font: inherit;
}

.addons-row button {
  padding: 6px 10px;
  border-radius: 10px;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
}

.summary-row.total {
  border-top: 1px solid var(--border-color);
  padding-top: 10px;
  font-size: 1.05rem;
}

.proposal-meta {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  margin-bottom: 16px;
}

.label {
  display: block;
  font-size: 0.75rem;
  color: var(--muted-text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.proposal-lines {
  display: grid;
  gap: 10px;
  margin-bottom: 16px;
}

.proposal-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border-color);
  font-size: 0.95rem;
}

.proposal-line-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.proposal-line-detail {
  font-size: 0.8rem;
  color: var(--muted-text);
}

.proposal-line-value {
  white-space: nowrap;
}

.proposal-line-meta {
  color: var(--muted-text);
}

.proposal-line strong {
  font-weight: 600;
}

.proposal-total {
  display: flex;
  justify-content: space-between;
  font-size: 1.1rem;
  font-weight: 700;
  padding-top: 8px;
  border-top: 1px solid var(--border-color);
}

.proposal-total.muted {
  font-weight: 600;
  color: var(--muted-text);
}

.muted {
  color: var(--muted-text);
}

.print-page {
  display: none;
  padding: 28px;
  font-size: 0.9rem;
  color: #4b5563;
  background: #fff;
}

.print-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px;
}

.print-header img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 12px;
  background: #eef2f7;
}

.print-title h1 {
  margin: 0;
  font-size: 1.25rem;
}

.print-title p {
  margin: 4px 0 0;
  color: var(--muted-text);
}

.print-meta {
  margin-left: auto;
  text-align: right;
  font-size: 0.85rem;
}

.print-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.print-card {
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 16px;
}

.print-card h2 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.print-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  font-size: 0.85rem;
}

.print-label {
  display: block;
  font-size: 0.7rem;
  color: var(--muted-text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}

.print-lines {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
  font-size: 0.85rem;
}

.print-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px dashed var(--border-color);
  padding-bottom: 6px;
}

.print-line strong,
.print-total {
  color: #4353e6;
}

.print-line-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.print-line-detail {
  font-size: 0.75rem;
  color: #4b5563;
}

.print-line-value {
  white-space: nowrap;
}

.print-line-meta {
  color: #4b5563;
}

.print-total {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  margin-top: 8px;
}

.print-total-strong {
  font-weight: 700;
}

.print-total.muted {
  font-weight: 500;
  color: #4b5563;
}

.print-note {
  margin: 12px 0 0;
  font-size: 0.8rem;
  color: #4b5563;
}

@media print {
  body {
    background: #fff;
  }

  .topbar-actions,
  .sidebar,
  .tab-bar {
    display: none !important;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .app,
  .auth-gate {
    display: none !important;
  }

  .print-page {
    display: block;
  }
}

@media (max-width: 768px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}