:root {
  --paper: #f5f1e8;
  --ink: #1c1c1e;
  --accent: #d4551f;
  --accent-hover: #b84418;
  --accent-light: rgba(212, 85, 31, 0.1);
  --trust: #2c4d8a;
  --trust-hover: #1e3666;
  --trust-light: rgba(44, 77, 138, 0.08);
  --caution: #f5c430;
  --caution-light: rgba(245, 196, 48, 0.14);
  --calm: #1f6b5b;
  --calm-light: rgba(31, 107, 91, 0.1);
  --muted: #72727a;
  --muted-light: rgba(114, 114, 122, 0.12);
  --line: rgba(28, 28, 30, 0.1);
  --line-strong: rgba(28, 28, 30, 0.18);
  --surface: #ffffff;
  --surface-warm: #faf7f0;
  --shadow-sm: 0 2px 8px rgba(28, 28, 30, 0.07);
  --shadow: 0 8px 32px rgba(28, 28, 30, 0.1), 0 2px 6px rgba(28, 28, 30, 0.05);
  --shadow-lg: 0 24px 80px rgba(28, 28, 30, 0.11), 0 6px 20px rgba(28, 28, 30, 0.06);
  --shadow-focus: 0 0 0 3px rgba(44, 77, 138, 0.22);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --max-width: 1180px;
  --section-gap: 5rem;
  --card-pad: 1.5rem;
  --panel-pad: 1.5rem;
  --text-hero: clamp(3.2rem, 7.5vw, 6.4rem);
  --text-h2: clamp(2rem, 4.5vw, 3.6rem);
  --text-h3: 1.25rem;
  --text-h4: 1.05rem;
  --text-body-lg: 1.1rem;
  --text-body: 1rem;
  --text-sm: 0.9rem;
  --text-xs: 0.8rem;
  --text-label: 0.78rem;
  --text-mono: 0.92rem;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
  --transition-fast: 120ms var(--ease-out);
  --transition-std: 200ms var(--ease-out);
  --transition-slow: 360ms var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Instrument Sans", sans-serif;
  font-size: var(--text-body);
  line-height: 1.55;
  background:
    radial-gradient(ellipse 60% 40% at 7% 0%, rgba(44, 77, 138, 0.07), transparent),
    radial-gradient(ellipse 50% 60% at 100% 92%, rgba(212, 85, 31, 0.08), transparent),
    linear-gradient(180deg, #faf7f0 0%, #f5f1e8 45%, #f0ece2 100%);
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

img {
  max-width: 100%;
  display: block;
}

h1,
h2,
h3 {
  font-family: "Space Grotesk", sans-serif;
  letter-spacing: -0.025em;
  margin: 0;
}

h1 {
  line-height: 0.93;
}

h2 {
  line-height: 1.05;
  font-size: var(--text-h2);
  margin: 0.3rem 0 1.2rem;
}

h3 {
  line-height: 1.2;
}

section {
  scroll-margin-top: 80px;
}

section + section {
  margin-top: var(--section-gap);
}

.page-shell {
  width: min(calc(100% - 2.5rem), var(--max-width));
  margin: 0 auto;
}

.eyebrow {
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--accent);
}

.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 250ms ease, box-shadow 250ms ease, backdrop-filter 250ms ease;
}

.topnav.is-scrolled {
  background: rgba(245, 241, 232, 0.88);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-sm);
}

.topnav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}

.brand-wordmark {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  text-decoration: none;
}

.brand-wordmark .fyi {
  color: var(--accent);
}

.nav-cta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.nav-cta:hover,
.nav-cta:focus-visible {
  color: var(--ink);
}

.hero {
  padding-top: 3.75rem;
}

.hero-inner {
  max-width: 680px;
}

.hero-headline {
  font-size: var(--text-hero);
  font-weight: 700;
  line-height: 0.93;
  letter-spacing: -0.03em;
  max-width: 14ch;
  margin: 0.3rem 0 1.25rem;
}

.hero-lede {
  margin: 0 0 2rem;
  max-width: 58ch;
  font-size: var(--text-body-lg);
  line-height: 1.6;
  color: rgba(28, 28, 30, 0.75);
}

.hero-actions,
.form-actions,
.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-actions {
  margin-bottom: 2rem;
}

.hero-trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.8rem;
}

.hero-trust-strip li {
  display: inline-flex;
  align-items: center;
}

.hero-trust-strip li:not(:last-child)::after {
  content: "·";
  margin-left: 0.85rem;
  color: var(--accent);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 0.9rem 1.4rem;
  font-size: var(--text-body);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
  will-change: transform;
}

.button:hover {
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button-primary {
  background: var(--trust);
  color: #fff;
  box-shadow: 0 4px 16px rgba(44, 77, 138, 0.28);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--trust-hover);
  box-shadow: 0 8px 24px rgba(44, 77, 138, 0.34);
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.74);
  color: var(--ink);
  backdrop-filter: blur(8px);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--line-strong);
}

.button-ghost {
  background: transparent;
  color: var(--muted);
}

.button-ghost:hover,
.button-ghost:focus-visible {
  color: var(--ink);
}

.button-sm {
  padding: 0.55rem 0.9rem;
  font-size: var(--text-sm);
}

.scenario-grid,
.feature-grid,
.offer-grid,
.result-row {
  display: grid;
  gap: 1.5rem;
}

.scenario-grid {
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.scenario-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  transition:
    transform var(--transition-std),
    box-shadow var(--transition-std),
    border-color var(--transition-std);
}

.scenario-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--line-strong);
}

.scenario-icon {
  display: block;
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.scenario-label {
  display: inline-block;
  margin-bottom: 0.45rem;
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.scenario-title {
  margin: 0 0 0.45rem;
  font-size: 1rem;
}

.scenario-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.tool-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 1.5rem;
  align-items: start;
}

.input-panel,
.output-panel,
.waitlist-form {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
}

.input-panel,
.waitlist-form {
  display: grid;
  gap: 1.1rem;
  padding: var(--panel-pad);
}

.output-panel {
  min-height: 42rem;
  padding: var(--panel-pad);
  box-shadow: var(--shadow-lg);
}

.input-panel {
  box-shadow: var(--shadow-lg);
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field label {
  color: var(--ink);
  font-size: var(--text-sm);
  font-weight: 600;
}

.field input,
.field textarea,
.field select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.9);
  padding: 0.95rem 1rem;
  color: var(--ink);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.field input:focus,
.field textarea:focus,
.field select:focus,
.button:focus-visible,
.history-item:focus-visible,
.history-drawer summary:focus-visible,
.footer-links a:focus-visible,
.nav-cta:focus-visible {
  outline: none;
  border-color: var(--trust);
  box-shadow: var(--shadow-focus);
}

.field textarea {
  min-height: 12rem;
  resize: none;
  overflow: hidden;
}

.field input.is-invalid,
.field textarea.is-invalid {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(212, 85, 31, 0.18);
}

.form-note,
.waitlist-note,
.affiliate-disclosure,
.footer-legal {
  margin: 0;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: var(--text-xs);
}

.output-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.panel-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: var(--text-h3);
  font-weight: 600;
}

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 30rem;
  gap: 0.75rem;
  padding: 2rem;
  text-align: center;
}

.empty-state-icon {
  margin-bottom: 0.5rem;
  font-size: 2.5rem;
  line-height: 1;
  opacity: 0.35;
}

.empty-state h3 {
  max-width: 22ch;
  font-size: 1.6rem;
}

.empty-state p {
  max-width: 36ch;
  margin: 0;
  color: var(--muted);
  font-size: var(--text-sm);
}

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 14rem;
  margin-top: 1rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.65);
  text-align: center;
  animation: result-in 0.2s var(--ease-out) both;
}

.loading-state p {
  margin: 0;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: var(--text-sm);
}

.loading-dots {
  display: flex;
  gap: 0.4rem;
  justify-content: center;
}

.loading-dots span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  animation: dot-pulse 1.2s var(--ease-in-out) infinite;
}

.loading-dots span:nth-child(2) {
  animation-delay: 0.2s;
}

.loading-dots span:nth-child(3) {
  animation-delay: 0.4s;
}

.status-message {
  margin-top: 0.75rem;
  padding: 0.85rem 1rem;
  border: 1px solid;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
}

.status-message.is-success {
  border-color: rgba(31, 107, 91, 0.2);
  background: var(--calm-light);
  color: var(--calm);
}

.status-message.is-error {
  border-color: rgba(212, 85, 31, 0.22);
  background: var(--accent-light);
  color: var(--accent);
}

.status-message.is-info {
  border-color: rgba(44, 77, 138, 0.16);
  background: var(--trust-light);
  color: var(--trust);
}

.results {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

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

.result-block {
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface);
}

.result-block.result-in {
  animation: result-in 0.35s var(--ease-out) both;
}

.results > .result-block.result-in:nth-child(1) {
  animation-delay: 0s;
}

.results > .result-block.result-in:nth-child(2) {
  animation-delay: 0.06s;
}

.results > .result-block.result-in:nth-child(3) {
  animation-delay: 0.12s;
}

.result-row:nth-of-type(1) .result-block.result-in {
  animation-delay: 0.18s;
}

.result-row:nth-of-type(2) .result-block.result-in {
  animation-delay: 0.22s;
}

.results > .affiliate-block.result-in {
  animation-delay: 0.26s;
}

.result-block h3 {
  margin: 0 0 0.85rem;
  font-size: var(--text-h3);
  font-weight: 600;
}

.summary-block {
  background:
    linear-gradient(135deg, rgba(44, 77, 138, 0.06), rgba(255, 255, 255, 0.96) 50%),
    var(--surface);
}

.bottom-line-output {
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.checklist {
  display: grid;
  gap: 0.65rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.checklist li {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-md);
  background: var(--muted-light);
  transition: background var(--transition-fast);
}

.checklist li:has(input:checked) {
  background: var(--calm-light);
}

.checklist input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  margin-top: 0.18rem;
  accent-color: var(--calm);
  cursor: pointer;
  flex-shrink: 0;
}

.checklist label {
  cursor: pointer;
  line-height: 1.45;
  transition: color var(--transition-fast), text-decoration var(--transition-fast);
}

.checklist li:has(input:checked) label {
  color: var(--muted);
  text-decoration: line-through;
  text-decoration-color: var(--calm);
}

.warning-block {
  background:
    linear-gradient(160deg, rgba(245, 196, 48, 0.12), rgba(255, 255, 255, 0.96) 60%),
    var(--surface);
}

.warning-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(212, 85, 31, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 248, 244, 0.92);
}

.warning-icon {
  margin-top: 0.1rem;
  font-size: 1.05rem;
  line-height: 1;
}

.warning-text {
  margin: 0;
  line-height: 1.45;
}

.glossary-block summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  list-style: none;
  font-family: "Space Grotesk", sans-serif;
  font-size: var(--text-h3);
  font-weight: 600;
}

.glossary-block summary::-webkit-details-marker {
  display: none;
}

.glossary-block summary::after {
  content: "+";
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-weight: 400;
}

.glossary-block[open] summary::after {
  content: "−";
}

.glossary-list {
  display: grid;
  gap: 0.85rem;
  margin: 0.9rem 0 0;
  padding: 0.9rem 0 0;
  border-top: 1px solid var(--line);
}

.glossary-list dt {
  font-size: var(--text-sm);
  font-weight: 700;
}

.glossary-list dd {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: var(--text-sm);
}

.result-list {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding-left: 1.1rem;
}

.links-list {
  list-style: none;
  padding-left: 0;
}

.links-list a {
  color: var(--trust);
  text-decoration: none;
}

.links-list a:hover,
.links-list a:focus-visible {
  color: var(--trust-hover);
  text-decoration: underline;
}

.affiliate-block {
  background:
    linear-gradient(135deg, rgba(212, 85, 31, 0.07), transparent 50%),
    var(--surface);
}

.offer-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 1rem;
}

.offer-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.1rem;
  background: var(--surface);
  transition: box-shadow var(--transition-std), border-color var(--transition-std);
}

.offer-card:hover {
  box-shadow: var(--shadow);
  border-color: var(--line-strong);
}

.offer-card h3 {
  margin: 0;
  font-size: 1rem;
}

.offer-card p {
  flex: 1;
  margin: 0;
  color: var(--muted);
  font-size: var(--text-sm);
}

.offer-card .button {
  width: 100%;
  margin-top: auto;
}

.history-drawer {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 1rem;
}

.history-drawer summary {
  cursor: pointer;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: var(--text-sm);
}

.history-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 0.9rem;
}

.history-item {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.68);
  text-align: left;
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.history-item:hover {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-sm);
}

.history-item h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.history-meta {
  margin: 0;
  color: var(--muted);
  font-size: var(--text-sm);
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.9rem;
  border-radius: var(--radius-pill);
  background: var(--trust-light);
  color: var(--trust);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  font-weight: 500;
}

.feature-card p {
  margin: 0;
  color: rgba(28, 28, 30, 0.72);
}

.waitlist-form {
  max-width: 44rem;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.waitlist-status {
  margin: 0;
  padding: 0.75rem 0.9rem;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
}

.waitlist-status.is-success {
  border-color: rgba(31, 107, 91, 0.18);
  background: var(--calm-light);
  color: var(--calm);
}

.waitlist-status.is-error {
  border-color: rgba(212, 85, 31, 0.2);
  background: var(--accent-light);
  color: var(--accent);
}

.site-footer {
  margin-top: var(--section-gap);
  padding: 2.5rem 0 2rem;
  border-top: 1px solid var(--line);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.tagline {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-family: "IBM Plex Mono", monospace;
  font-size: var(--text-xs);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links a {
  color: var(--muted);
  font-size: var(--text-sm);
  text-decoration: none;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--ink);
}

.hidden {
  display: none !important;
}

@keyframes dot-pulse {
  0%,
  80%,
  100% {
    transform: scale(0.6);
    opacity: 0.4;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes result-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .tool-grid,
  .feature-grid,
  .result-row,
  .offer-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  :root {
    --section-gap: 3.5rem;
  }

  .page-shell {
    width: min(calc(100% - 1.25rem), var(--max-width));
  }

  .topnav-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .hero {
    padding-top: 2.75rem;
  }

  .hero-headline {
    max-width: none;
    font-size: 3.1rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
    justify-content: center;
  }

  .input-panel,
  .output-panel,
  .waitlist-form {
    border-radius: 22px;
  }

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

  .output-toolbar {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 420px) {
  .scenario-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}