:root {
  --charcoal: #0a0a0a;
  --green: #0d2325;
  --brown: #3a2a1a;
  --gold: #886834;
  --gold-hover: #a0865d;
  --gray: #cccccc;
  --page: #f4f4f4;
  --white: #ffffff;
  --line: #e5e5e5;
  --muted: #566566;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--charcoal);
  background: var(--page);
  font-family: Raleway, Arial, sans-serif;
  letter-spacing: 0;
}

h1, h2, h3, button {
  font-family: Lato, Raleway, Arial, sans-serif;
  letter-spacing: 0;
}

button, input, select {
  font: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--charcoal);
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.topbar-inner {
  height: 72px;
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.brand img {
  height: 42px;
  max-width: 230px;
  object-fit: contain;
}

.brand-divider {
  height: 34px;
  width: 1px;
  background: rgba(255,255,255,.2);
}

.brand-copy {
  display: grid;
  gap: 2px;
}

.brand-copy strong { font-family: Lato, sans-serif; }
.brand-copy span { color: rgba(255,255,255,.58); font-size: 12px; }

nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

nav a, nav button, .hero-actions button {
  color: var(--white);
  text-decoration: none;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 6px;
  padding: 10px 14px;
  cursor: pointer;
  font-size: 14px;
}

nav a:hover, nav button:hover {
  background: rgba(255,255,255,.16);
}

.page {
  max-width: 1500px;
  margin: 0 auto;
  padding: 24px;
}

.hero, .panel {
  background: var(--white);
  border: 1px solid var(--gray);
  border-radius: 8px;
  box-shadow: 0 14px 34px rgba(10,10,10,.08);
}

.hero {
  padding: 26px;
  margin-bottom: 20px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.eyebrow {
  color: var(--gold);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin: 0 0 8px;
}

.hero h1, .proposal h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1.05;
}

.hero p {
  margin: 10px 0 0;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 10px;
}

.hero-actions button {
  background: var(--muted);
  border-color: var(--muted);
  min-width: 120px;
}

.hero-actions .secondary {
  background: var(--white);
  color: var(--charcoal);
  border-color: var(--gray);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: 20px;
  align-items: start;
}

.form-panel {
  padding: 24px 28px;
}

.form-section {
  padding: 28px 0;
  border-top: 1px solid var(--line);
}

.form-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading h2 {
  margin: 0;
  font-size: 20px;
}

.section-heading p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.grid {
  display: grid;
  gap: 14px;
}

.three { grid-template-columns: repeat(3, 1fr); }
.four { grid-template-columns: repeat(4, 1fr); }
.five { grid-template-columns: repeat(5, 1fr); }

label {
  display: grid;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: rgba(10,10,10,.62);
  text-transform: uppercase;
}

input, select {
  width: 100%;
  height: 42px;
  border-radius: 6px;
  border: 1px solid var(--gray);
  background: var(--white);
  color: var(--charcoal);
  padding: 0 12px;
  outline: none;
  font-size: 14px;
  text-transform: none;
}

input:focus, select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(136,104,52,.14);
}

.checkbox-label {
  min-height: 62px;
  align-content: end;
}

.checkbox-label span {
  margin-bottom: 6px;
}

.checkbox-label input {
  width: 20px;
  height: 20px;
  accent-color: var(--gold);
}

.metrics {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.metrics div, .summary-grid div, .check-card, .proposal-note {
  background: #f7f7f7;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 14px;
}

.metrics span, .summary span, .proposal-total span, .check-card span {
  color: var(--muted);
  font-size: 12px;
}

.metrics strong, .summary strong, .check-card strong {
  display: block;
  margin-top: 5px;
}

.addon-table {
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow-x: auto;
}

.addon-head, .addon-row {
  min-width: 760px;
  display: grid;
  grid-template-columns: 1fr 100px 130px 130px;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
}

.addon-head {
  background: #f7f7f7;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.addon-row {
  border-top: 1px solid var(--line);
}

.addon-total {
  font-weight: 700;
  text-align: right;
}

.summary {
  position: sticky;
  top: 92px;
  overflow: hidden;
}

.summary-top {
  background: var(--charcoal);
  color: var(--white);
  padding: 24px;
}

.summary-top span {
  color: rgba(255,255,255,.6);
  text-transform: uppercase;
}

.summary-top strong {
  color: var(--white);
  font-size: 42px;
  line-height: 1;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 18px;
}

.breakdown {
  padding: 0 18px 18px;
}

.breakdown div, .check-card div {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}

.breakdown div:last-child, .check-card div:last-child {
  border-bottom: 0;
}

.check-card {
  margin: 0 18px 18px;
}

.check-card h3 {
  margin: 0 0 8px;
  font-size: 16px;
}

.proposal {
  margin-top: 22px;
  padding: 30px;
}

.proposal-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 24px;
}

.proposal-total {
  min-width: 220px;
  background: var(--green);
  color: var(--white);
  border-radius: 6px;
  padding: 18px;
  align-self: start;
}

.proposal-total strong {
  display: block;
  margin-top: 8px;
  color: var(--gold-hover);
  font-size: 30px;
}

.proposal-grid {
  display: grid;
  grid-template-columns: 1.4fr .8fr;
  gap: 30px;
  padding: 24px 0;
}

.proposal-grid h3 {
  margin: 0 0 10px;
}

.proposal-grid p {
  color: var(--muted);
  line-height: 1.7;
}

@media (max-width: 1100px) {
  .workspace, .proposal-grid {
    grid-template-columns: 1fr;
  }
  .summary { position: static; }
  .three, .four, .five, .metrics {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .topbar-inner, .hero, .proposal-header {
    align-items: flex-start;
    flex-direction: column;
    height: auto;
    padding-top: 16px;
    padding-bottom: 16px;
  }
  .brand-divider, .brand-copy { display: none; }
  nav { flex-wrap: wrap; }
  .page { padding: 14px; }
  .form-panel, .proposal { padding: 18px; }
  .three, .four, .five, .metrics {
    grid-template-columns: 1fr;
  }
}

@media print {
  .topbar, .hero, .form-panel, .summary {
    display: none;
  }
  .page { padding: 0; }
  .proposal {
    box-shadow: none;
    border: 0;
  }
}