:root {
  --fb-bg: #0f1216;
  --fb-surface: #171b22;
  --fb-surface-2: #1d222b;
  --fb-border: #2c333e;
  --fb-text: #ece7da;
  --fb-muted: #9ba3af;
  --fb-brass: #d0aa6d;
  --fb-purple: #aa7bd8;
  --fb-green: #76cfa4;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--fb-bg);
  color-scheme: dark;
}

body {
  background:
    radial-gradient(900px 420px at 8% -10%, rgba(170, 123, 216, 0.12), transparent 62%),
    radial-gradient(850px 420px at 100% 5%, rgba(208, 170, 109, 0.1), transparent 60%),
    var(--fb-bg);
  color: var(--fb-text);
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  min-height: 100vh;
}

a {
  color: inherit;
}

.fb-nav {
  backdrop-filter: blur(12px);
  background: rgba(15, 18, 22, 0.9);
  border-bottom: 1px solid var(--fb-border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.fb-nav-inner {
  align-items: center;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1180px;
  padding: 14px 22px;
}

.fb-brand {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.fb-nav-links {
  align-items: center;
  display: flex;
  gap: 18px;
}

.fb-nav-links a {
  color: var(--fb-muted);
  font-size: 13px;
  text-decoration: none;
}

.fb-nav-links a:hover,
.fb-nav-links a[aria-current="page"] {
  color: var(--fb-text);
}

.fb-page {
  margin: 0 auto;
  max-width: 1180px;
  padding: 64px 22px 80px;
}

.fb-hero {
  margin-bottom: 34px;
  max-width: 840px;
}

.fb-eyebrow {
  color: var(--fb-brass);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

.fb-hero h1 {
  font-size: clamp(40px, 7vw, 76px);
  letter-spacing: -0.055em;
  line-height: 0.98;
  margin: 0 0 20px;
  max-width: 820px;
}

.fb-hero-sub {
  color: var(--fb-muted);
  font-size: clamp(16px, 2vw, 20px);
  line-height: 1.6;
  margin: 0;
  max-width: 730px;
}

.fb-layout {
  align-items: start;
  display: grid;
  gap: 22px;
  grid-template-columns: minmax(0, 1fr) 270px;
}

.fb-builder,
.fb-saved-panel,
.fb-service-card {
  background: rgba(23, 27, 34, 0.92);
  border: 1px solid var(--fb-border);
  border-radius: 18px;
}

.fb-builder {
  min-height: 520px;
  padding: clamp(22px, 4vw, 38px);
}

.fb-progress {
  display: flex;
  gap: 8px;
  margin-bottom: 30px;
}

.fb-progress span {
  background: var(--fb-border);
  border-radius: 999px;
  display: block;
  height: 4px;
  transition: background 0.2s ease, flex 0.2s ease;
  width: 42px;
}

.fb-progress span.is-active {
  background: linear-gradient(90deg, var(--fb-brass), var(--fb-purple));
  flex: 1;
}

.fb-step[hidden] {
  display: none;
}

.fb-ai-mode {
  background:
    linear-gradient(var(--fb-surface-2), var(--fb-surface-2)) padding-box,
    linear-gradient(135deg, var(--fb-brass), var(--fb-purple)) border-box;
  border: 1px solid transparent;
  border-radius: 16px;
  margin-bottom: 28px;
  padding: 24px;
}

.fb-ai-mode h2 {
  font-size: clamp(22px, 3.6vw, 30px);
  letter-spacing: -0.03em;
  margin: 0 0 8px;
}

#fb-ai-input {
  background: var(--fb-surface);
  border: 1px solid var(--fb-border);
  border-radius: 12px;
  color: var(--fb-text);
  font-family: inherit;
  font-size: 15px;
  line-height: 1.5;
  padding: 14px;
  resize: vertical;
  width: 100%;
}

#fb-ai-input:focus {
  border-color: var(--fb-brass);
  outline: none;
}

.fb-ai-row {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-top: 12px;
}

.fb-ai-count {
  color: var(--fb-muted);
  font-size: 12px;
}

.fb-ai-submit {
  background: linear-gradient(135deg, var(--fb-brass), var(--fb-purple));
  border: none;
  border-radius: 10px;
  color: #0f1216;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 22px;
  transition: opacity 0.16s ease;
}

.fb-ai-submit:hover {
  opacity: 0.9;
}

.fb-ai-submit:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.fb-ai-status {
  color: var(--fb-muted);
  font-size: 13px;
  margin: 10px 0 0;
  min-height: 18px;
}

.fb-ai-promptlab-hint {
  color: var(--fb-muted);
  font-size: 13px;
  margin: 8px 0 0;
}

.fb-ai-promptlab-hint a {
  color: var(--fb-brass);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.fb-or-divider {
  color: var(--fb-muted);
  font-size: 13px;
  margin: 0 0 24px;
  text-align: center;
}

.fb-step-kicker {
  color: var(--fb-brass);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin: 0 0 8px;
  text-transform: uppercase;
}

.fb-step h2 {
  font-size: clamp(24px, 4vw, 36px);
  letter-spacing: -0.035em;
  margin: 0 0 8px;
}

.fb-step-intro {
  color: var(--fb-muted);
  font-size: 14px;
  line-height: 1.6;
  margin: 0 0 24px;
}

.fb-choice-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.fb-choice {
  background: var(--fb-surface-2);
  border: 1px solid var(--fb-border);
  border-radius: 13px;
  color: var(--fb-text);
  cursor: pointer;
  min-height: 86px;
  padding: 16px;
  text-align: left;
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.fb-choice:hover {
  border-color: #596270;
  transform: translateY(-1px);
}

.fb-choice.is-selected {
  background:
    linear-gradient(var(--fb-surface-2), var(--fb-surface-2)) padding-box,
    linear-gradient(135deg, var(--fb-brass), var(--fb-purple)) border-box;
  border-color: transparent;
}

.fb-choice strong {
  display: block;
  font-size: 15px;
  margin-bottom: 5px;
}

.fb-choice span {
  color: var(--fb-muted);
  display: block;
  font-size: 12px;
  line-height: 1.45;
}

.fb-section-label {
  color: var(--fb-muted);
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 24px 0 10px;
  text-transform: uppercase;
}

.fb-inline-choices {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.fb-chip {
  background: transparent;
  border: 1px solid var(--fb-border);
  border-radius: 999px;
  color: var(--fb-muted);
  cursor: pointer;
  font-size: 13px;
  padding: 10px 15px;
}

.fb-chip.is-selected {
  background: var(--fb-text);
  border-color: var(--fb-text);
  color: var(--fb-bg);
  font-weight: 700;
}

.fb-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: space-between;
  margin-top: 30px;
}

.fb-button {
  align-items: center;
  background: transparent;
  border: 1px solid var(--fb-border);
  border-radius: 999px;
  color: var(--fb-text);
  cursor: pointer;
  display: inline-flex;
  font-size: 13px;
  font-weight: 700;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
  text-decoration: none;
}

.fb-button:hover {
  border-color: var(--fb-muted);
}

.fb-button-primary {
  background: linear-gradient(135deg, #ece7da, var(--fb-brass));
  border-color: var(--fb-brass);
  color: #17120b;
}

.fb-button-primary:disabled {
  cursor: not-allowed;
  opacity: 0.35;
}

.fb-result-head {
  align-items: start;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin-bottom: 24px;
}

.fb-result-head h2 {
  margin-bottom: 8px;
}

.fb-cost {
  background: rgba(208, 170, 109, 0.1);
  border: 1px solid rgba(208, 170, 109, 0.28);
  border-radius: 12px;
  color: var(--fb-brass);
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 700;
  padding: 10px 12px;
}

.fb-tool-stack {
  display: grid;
  gap: 10px;
  margin: 18px 0 28px;
}

.fb-tool {
  align-items: center;
  background: var(--fb-surface-2);
  border: 1px solid var(--fb-border);
  border-radius: 13px;
  display: grid;
  gap: 14px;
  grid-template-columns: 34px minmax(0, 1fr) auto;
  padding: 14px;
}

.fb-tool-number {
  align-items: center;
  background: rgba(208, 170, 109, 0.12);
  border: 1px solid rgba(208, 170, 109, 0.28);
  border-radius: 50%;
  color: var(--fb-brass);
  display: flex;
  font-size: 12px;
  font-weight: 800;
  height: 34px;
  justify-content: center;
  width: 34px;
}

.fb-tool strong {
  display: block;
  font-size: 14px;
}

.fb-tool span {
  color: var(--fb-muted);
  display: block;
  font-size: 12px;
  line-height: 1.5;
  margin-top: 3px;
}

.fb-tool a {
  color: var(--fb-brass);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}

.fb-workflow {
  counter-reset: workflow;
  display: grid;
  gap: 12px;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.fb-workflow li {
  color: var(--fb-muted);
  counter-increment: workflow;
  display: grid;
  font-size: 13px;
  gap: 12px;
  grid-template-columns: 26px minmax(0, 1fr);
  line-height: 1.55;
}

.fb-workflow li::before {
  align-items: center;
  background: var(--fb-border);
  border-radius: 50%;
  color: var(--fb-text);
  content: counter(workflow);
  display: flex;
  font-size: 11px;
  font-weight: 800;
  height: 26px;
  justify-content: center;
}

.fb-source-tool {
  background: rgba(118, 207, 164, 0.09);
  border: 1px solid rgba(118, 207, 164, 0.28);
  border-radius: 12px;
  color: #a9ddc2;
  display: none;
  font-size: 13px;
  line-height: 1.55;
  margin: 0 0 20px;
  padding: 12px 14px;
}

.fb-source-tool.is-visible {
  display: block;
}

.fb-guidance {
  background: rgba(208, 170, 109, 0.08);
  border: 1px solid rgba(208, 170, 109, 0.28);
  border-radius: 12px;
  color: var(--fb-muted);
  font-size: 13px;
  line-height: 1.55;
  margin-top: 24px;
  padding: 12px 14px;
}

.fb-guidance strong {
  color: var(--fb-text);
}

.fb-sidebar {
  display: grid;
  gap: 16px;
}

.fb-saved-panel,
.fb-service-card {
  padding: 20px;
}

.fb-sidebar h3 {
  font-size: 15px;
  margin: 0 0 8px;
}

.fb-sidebar p {
  color: var(--fb-muted);
  font-size: 12px;
  line-height: 1.55;
  margin: 0 0 14px;
}

.fb-saved-list {
  display: grid;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.fb-saved-list a {
  align-items: center;
  background: var(--fb-surface-2);
  border: 1px solid var(--fb-border);
  border-radius: 9px;
  display: flex;
  font-size: 12px;
  justify-content: space-between;
  padding: 10px 11px;
  text-decoration: none;
}

.fb-saved-list a::after {
  color: var(--fb-brass);
  content: "→";
}

.fb-empty-saved {
  color: var(--fb-muted);
  font-size: 12px;
}

.fb-service-card {
  background:
    radial-gradient(380px 180px at 100% 0, rgba(170, 123, 216, 0.16), transparent 65%),
    var(--fb-surface);
}

.fb-service-price {
  color: var(--fb-brass);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 12px 0 2px;
}

.fb-service-price small {
  color: var(--fb-muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0;
}

.fb-status {
  color: var(--fb-green);
  display: none;
  font-size: 12px;
  margin-top: 12px;
}

.fb-status.is-visible {
  display: block;
}

.fb-footer {
  border-top: 1px solid var(--fb-border);
  color: var(--fb-muted);
  font-size: 12px;
  padding: 24px 22px 40px;
  text-align: center;
}

@media (max-width: 900px) {
  .fb-layout {
    grid-template-columns: 1fr;
  }

  .fb-sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .fb-nav-links a:not([aria-current="page"]) {
    display: none;
  }

  .fb-page {
    padding-top: 42px;
  }

  .fb-choice-grid,
  .fb-sidebar {
    grid-template-columns: 1fr;
  }

  .fb-choice {
    min-height: 76px;
  }

  .fb-result-head {
    flex-direction: column;
  }

  .fb-tool {
    grid-template-columns: 32px minmax(0, 1fr);
  }

  .fb-tool > a {
    grid-column: 2;
  }

  .fb-actions {
    align-items: stretch;
    flex-direction: column-reverse;
  }

  .fb-actions > div {
    display: grid !important;
    gap: 8px !important;
  }

  .fb-button {
    width: 100%;
  }
}

@media print {
  .fb-nav,
  .fb-sidebar,
  .fb-actions,
  .fb-footer {
    display: none !important;
  }

  body {
    background: #fff;
    color: #111;
  }

  .fb-page {
    max-width: none;
    padding: 0;
  }

  .fb-hero {
    display: none;
  }

  .fb-builder {
    border: 0;
    color: #111;
    padding: 0;
  }

  .fb-tool,
  .fb-choice {
    background: #fff;
    border-color: #bbb;
    color: #111;
  }

  .fb-tool span,
  .fb-step-intro,
  .fb-workflow li {
    color: #333;
  }
}