/*
  Mangrove design tokens — source of truth for the site shell.
  Prefer these over arbitrary values. Calculator pages may mirror
  a subset until shell unification (P1-14).
*/
:root {
  /* Color roles — calibrated dark instrument */
  --ink: #f5f3ef;
  --ink-soft: #a8aaa5;
  --paper: #0c0c0c;
  --surface: #141715;
  --surface-2: #1b201d;
  --surface-raised: #202622;
  --line: rgba(232, 238, 233, 0.1);
  --line-strong: rgba(232, 238, 233, 0.21);
  --grid-line: rgba(232, 238, 233, 0.035);
  --accent: #42a28e;
  --accent-text: #67b9a7;
  --pine: #42a28e;
  --pine-dark: #2f7d6d;
  --signal: #d4a85c;
  --signal-text: #e1bd7c;
  --signal-soft: rgba(212, 168, 92, 0.11);
  --signal-line: rgba(212, 168, 92, 0.42);
  --ok-text: #72b98a;
  --danger-text: #d0786d;

  /* Type */
  --font-display: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", monospace;

  /* Layout */
  --shell: 1040px;
  --space-2xs: 0.35rem;
  --space-xs: 0.55rem;
  --space-sm: 0.85rem;
  --space-md: 1.25rem;
  --space-lg: 1.75rem;
  --space-xl: 2.75rem;
  --space-2xl: 3.75rem;
  --radius: 2px;
  --radius-sm: 2px;

  /* Focus / motion */
  --focus-ring: var(--accent);
  --focus-offset: 3px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.02rem;
  line-height: 1.65;
  background: var(--paper);
  text-rendering: optimizeLegibility;
}

.skip-link {
  position: absolute;
  left: var(--space-md);
  top: -3.5rem;
  z-index: 100;
  padding: var(--space-xs) var(--space-sm);
  background: var(--surface-2);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: top 0.2s var(--ease);
}

.skip-link:focus {
  top: 0.75rem;
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 60% 40% at 15% 0%, rgba(74, 124, 94, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 35% at 85% 100%, rgba(48, 142, 123, 0.10) 0%, transparent 55%),
    var(--paper);
}

.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md) var(--space-lg);
  max-width: var(--shell);
  margin: 0 auto;
  padding: 1.35rem 1.5rem 1.1rem;
}


.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-width: 0;
  color: inherit;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: min(44px, 12vw);
  height: auto;
  filter: drop-shadow(0 0 8px rgba(48, 142, 123, 0.25));
  transition: filter 0.3s var(--ease);
}

.brand:hover .brand-logo {
  filter: drop-shadow(0 0 14px rgba(48, 142, 123, 0.4));
}

.brand-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--ink);
  line-height: 1.05;
  white-space: nowrap;
}

.is-home .brand-logo {
  /* Product chrome, not blog masthead */
  width: min(44px, 12vw);
}

.top.is-home {
  border-bottom: 1px solid var(--line);
  margin-bottom: 0;
  padding-bottom: 1rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.35rem;
  align-items: center;
}

.site-nav a {
  position: relative;
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.2em;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}

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

.site-nav a:hover::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

@media (max-width: 560px) {
  .top {
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    display: grid;
    grid-template-columns: repeat(5, max-content);
    justify-content: space-between;
    gap: 0.25rem;
    width: 100%;
  }

  .site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 2rem;
    font-size: clamp(0.72rem, 3vw, 0.82rem);
  }
}

.shell {
  max-width: var(--shell);
  margin: 0 auto;
  padding: var(--space-xl) 1.5rem 4.75rem;
}

.shell-home {
  padding-top: var(--space-lg);
}

/* Home product stage — copy + live tool frame */
.home-stage {
  display: grid;
  gap: var(--space-xl);
  align-items: end;
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--line);
}

@media (min-width: 900px) {
  .home-stage {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: var(--space-2xl);
    align-items: center;
  }
}

.home-stage-copy {
  max-width: 34rem;
}

/* ─── (Removed split-screen hero CSS — replaced by .hero-feature below) ─── */

.hero {
  max-width: 38rem;
}

.hero-home {
  max-width: 42rem;
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--line);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin: 0 0 1.15rem;
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero-meta span:not(:last-child)::after {
  content: "·";
  margin-left: 1rem;
  opacity: 0.55;
}

.hero-home h1,
.home-stage-copy h1 {
  margin: 0 0 0.65rem;
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 7vw, 4.5rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.04;
}

.hero-tagline {
  margin: 0 0 1rem;
  font-family: var(--font-body);
  font-size: clamp(1.15rem, 2.4vw, 1.35rem);
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.35;
  color: var(--ink);
}

.hero:not(.hero-home) h1 {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(2.15rem, 5.4vw, 3.35rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.08;
}

.lede {
  margin: 0;
  max-width: 40ch;
  color: var(--ink-soft);
  font-size: 1.12rem;
  line-height: 1.7;
}

.tool-list {
  margin-top: 0;
  padding-top: 0;
}

.tool-list-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-xs) var(--space-md);
  margin-bottom: 0;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--line-strong);
}

.tool-list h2,
.section-kicker {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.tool-count {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}

.tool-link {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-sm) var(--space-md);
  align-items: baseline;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--line);
  color: inherit;
  text-decoration: none;
  transition: transform 0.35s var(--ease);
}

.tool-index {
  min-width: 1.75rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent-text);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.tool-copy {
  display: grid;
  gap: 0.2rem;
  min-width: 0;
}

.tool-intent {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

.tool-go {
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease), color 0.2s var(--ease);
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius);
}

@media (hover: hover) {
  .tool-link {
    transition: background 0.15s var(--ease), transform 0.2s var(--ease);
  }

  .tool-link:hover {
    transform: translateX(4px);
    background: rgba(245, 243, 239, 0.05);
  }

  .tool-link:hover .tool-name {
    text-decoration: underline;
    text-decoration-thickness: 1.5px;
    text-underline-offset: 0.14em;
  }

  .tool-link:hover .tool-go {
    opacity: 1;
    transform: translateX(0);
    color: var(--accent-text);
  }
}

.tool-link:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius);
  transform: translateX(4px);
}

.tool-link:focus-visible .tool-name {
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.14em;
}

.tool-link:focus-visible .tool-go,
.tool-link:focus-within .tool-go {
  opacity: 1;
  transform: translateX(0);
  color: var(--ink);
}

.tool-desc {
  margin: 0.15rem 0 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.45;
  max-width: 48ch;
}

.tool-name {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.8vw, 1.7rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.12;
  color: var(--ink);
}

@media (max-width: 560px) {
  .tool-link {
    grid-template-columns: auto 1fr;
  }

  .tool-go {
    display: none;
  }
}

.reveal {
  animation: rise 0.7s var(--ease) both;
}

.reveal-delay-1 {
  animation-delay: 0.08s;
}

.reveal-delay-2 {
  animation-delay: 0.16s;
}

.reveal-delay-3 {
  animation-delay: 0.24s;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

.float {
  animation: float 5s var(--ease-bounce) infinite;
}

.float-slow {
  animation: float 7s var(--ease-bounce) infinite reverse;
}

.foot {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 1.5rem 2.75rem;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

.foot-grid {
  display: grid;
  gap: 1.5rem 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
}

@media (min-width: 720px) {
  .foot-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

.foot-brand {
  margin: 0 0 0.35rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0;
}

.foot-note,
.foot-col p {
  margin: 0;
  max-width: 28ch;
  line-height: 1.65;
}

.foot-col h2 {
  margin: 0 0 0.55rem;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.foot-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.foot-col li + li {
  margin-top: 0.35rem;
}

.foot a {
  color: var(--ink-soft);
  text-decoration: none;
}

.foot a:hover {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.foot-slim {
  margin: 0;
  max-width: 70ch;
  line-height: 1.7;
}

.foot-slim a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.eyebrow {
  margin: 0 0 0.55rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-md);
  margin: var(--space-lg) 0 0;
  align-items: center;
}

.cta-row.is-compact {
  margin-top: var(--space-md);
}

.cta-row.is-follow {
  margin-top: var(--space-sm);
}

.text-cta {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 0.1em;
}

.text-cta:hover {
  color: var(--pine);
  border-bottom-color: var(--pine);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.2rem;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), transform 0.25s var(--ease);
}

.btn:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--paper);
}

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

@media (hover: hover) {
  .btn:hover {
    transform: translateY(-1px);
  }
}

.btn-secondary {
  background: transparent;
  color: var(--ink-soft);
  border-color: var(--line-strong);
}

.btn-secondary:hover {
  background: var(--surface);
  color: var(--ink);
}

.btn-secondary:active {
  background: var(--surface-2);
}

.btn[aria-disabled="true"],
.btn.is-disabled,
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
  transform: none !important;
}

.text-cta:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius);
}

.prose {
  margin-top: 2.5rem;
  max-width: 62ch;
}

.prose h2 {
  margin: 2.25rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  letter-spacing: 0;
  line-height: 1.25;
}

.prose h3 {
  margin: 1.75rem 0 0.55rem;
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
}

.prose p,
.prose li {
  color: var(--ink-soft);
}

.prose p {
  margin: 0 0 1rem;
}

.prose ul,
.prose ol {
  margin: 0 0 1.25rem;
  padding-left: 1.2rem;
}

.prose li {
  margin-bottom: 0.4rem;
}

.prose a {
  color: var(--ink);
  font-weight: 500;
}

.prose strong {
  color: var(--ink);
  font-weight: 600;
}

.prose code {
  font-size: 0.92em;
}

.faq-list {
  margin-top: 2.25rem;
  max-width: 62ch;
}

.faq-list details {
  border-top: 1px solid var(--line);
  padding: 1rem 0;
}

.faq-list details:last-child {
  border-bottom: 1px solid var(--line);
}

.faq-list summary {
  cursor: pointer;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.3;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  float: right;
  color: var(--accent-text);
  font-family: var(--font-body);
  font-weight: 500;
}

.faq-list details[open] summary::after {
  content: "–";
}

.faq-answer {
  margin-top: 0.15rem;
}

.faq-answer p,
.faq-list details p {
  margin: 0.75rem 0 0;
  color: var(--ink-soft);
  max-width: 54ch;
}

.faq-answer ul {
  margin: 0.75rem 0 0;
  padding-left: 1.2rem;
  max-width: 54ch;
}

.faq-answer li {
  margin-bottom: 0.4rem;
  color: var(--ink-soft);
}

.faq-answer a {
  color: var(--ink);
  font-weight: 500;
}

.faq-answer strong {
  color: var(--ink);
  font-weight: 600;
}

.section-block {
  margin-top: var(--space-2xl);
  padding-top: 0.25rem;
}

.section-block h2 {
  margin: 0.35rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3vw, 1.9rem);
  letter-spacing: 0;
}

.section-intro {
  margin: 0 0 1.25rem;
  max-width: 50ch;
  color: var(--ink-soft);
}

.split-list {
  display: grid;
  gap: 0;
}

.split-list > div {
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
}

.split-list > div:last-child {
  border-bottom: 1px solid var(--line);
}

.split-list h3 {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0;
}

.split-list p {
  margin: 0;
  color: var(--ink-soft);
  max-width: 48ch;
}

.offer-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (min-width: 720px) {
  .offer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
    align-items: stretch;
  }
}

.offer-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.35rem 0 1.5rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.25s var(--ease);
}

.offer-card:focus-within {
  background: rgba(253, 251, 247, 0.72);
}

@media (hover: hover) {
  .offer-card:hover {
    background: rgba(253, 251, 247, 0.72);
  }
}

.offer-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0;
  line-height: 1.2;
}

.offer-card .offer-price {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.98rem;
}

.offer-card .offer-blurb,
.offer-card ul {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.offer-card ul {
  padding-left: 1.1rem;
  flex: 1;
}

.offer-card li {
  margin-bottom: 0.35rem;
}

.offer-card .offer-actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 0.5rem;
}

.setup-note {
  margin: 0.35rem 0 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
  line-height: 1.5;
}

.data-table-wrap {
  overflow-x: auto;
  margin: 0 0 1.25rem;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.data-table th,
.data-table td {
  text-align: left;
  padding: 0.6rem 0.75rem;
  border-bottom: 1px solid var(--line);
}

.data-table thead th {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 600;
}

.data-table tbody th {
  font-weight: 600;
  color: var(--ink);
}

.data-table td {
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td {
  border-bottom: 0;
}

.maker-card {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  margin: 1.25rem 0 1.75rem;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--surface);
}

.maker-avatar {
  flex-shrink: 0;
  width: 64px;
  height: auto;
}

.maker-body p {
  margin: 0 0 0.75rem;
}

.maker-body p:last-child {
  margin-bottom: 0;
}

.page-path {
  margin: 2.75rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

.page-path p {
  margin: 0 0 0.75rem;
  color: var(--ink-soft);
  max-width: 48ch;
}

/* Product frame — software UI preview (P2-20 v2), not a blog callout */
.product-frame {
  width: 100%;
  max-width: 32rem;
  margin: 0;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  animation: rise 0.75s var(--ease) 0.12s both;
}

.product-frame-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: 0.7rem 1rem;
  background: var(--pine);
  color: #f3f6f2;
}

.product-frame-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0;
}

.product-frame-badge {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(243, 246, 242, 0.72);
}

.product-frame-body {
  display: grid;
  gap: 0;
}

.product-frame-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.product-field {
  display: grid;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  background: var(--surface);
}

.product-field-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.product-field-value {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.product-field-wide {
  grid-column: 1 / -1;
}

.product-field-input {
  width: 100%;
  margin-top: 0.15rem;
  padding: 0.4rem 0.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease),
    background 0.2s var(--ease);
}

.product-field-input:hover {
  border-color: var(--line-strong);
}

.product-field-input:focus-visible {
  outline: none;
  border-color: rgba(245, 243, 239, 0.4);
  background: var(--surface-2);
  box-shadow: 0 0 0 3px rgba(48, 142, 123, 0.15);
}

.product-frame-result {
  padding: 1.15rem 1rem 1.25rem;
  border-left: 3px solid var(--accent);
  background: linear-gradient(
    180deg,
    var(--surface) 0%,
    var(--surface-2) 100%
  );
}

.product-frame-kicker {
  margin: 0 0 0.25rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.product-frame-total {
  margin: 0 0 0.85rem;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.5vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.1;
  color: var(--ink);
  animation: result-pop 0.55s var(--ease) 0.45s both;
}

.product-frame-total span {
  margin-left: 0.2em;
  font-family: var(--font-body);
  font-size: 0.5em;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--ink-soft);
}

.product-frame-breakdown {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.4rem;
}

.product-frame-breakdown li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.product-frame-breakdown li span:last-child {
  color: var(--ink);
  font-weight: 600;
}

.product-frame-link {
  display: block;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--line);
  color: var(--ink);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  background: var(--surface);
  transition: background 0.25s var(--ease), color 0.2s var(--ease);
}

.product-frame-link:hover {
  background: var(--surface-2);
  color: var(--pine);
}

.product-frame-link:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: calc(-1 * var(--focus-offset));
}

@keyframes result-pop {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.home-seo-line {
  margin: var(--space-xl) 0 0;
  padding-top: var(--space-md);
  border-top: 1px solid var(--line);
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.55;
}

.home-seo-line a {
  color: var(--ink);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.home-seo-line a:hover {
  border-bottom-color: var(--ink);
}

.section-product h2 {
  font-size: clamp(1.4rem, 2.8vw, 1.7rem);
}

.trust-grid {
  display: grid;
  gap: 1.25rem;
  margin-top: var(--space-md);
}

@media (min-width: 720px) {
  .trust-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }
}

.trust-item h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0;
  line-height: 1.2;
}

.trust-item p {
  margin: 0;
  max-width: 36ch;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.6;
}

.trust-item a {
  color: var(--ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.trust-item a:hover {
  color: var(--accent-text);
  border-bottom-color: var(--accent-text);
}

.section-faq-home .tool-list-head {
  margin-bottom: var(--space-sm);
}

.section-faq-home .tool-list-head .text-cta {
  font-size: 0.85rem;
}

.crumbs {
  max-width: var(--shell);
  margin: 0.35rem auto 0;
  padding: 0 1.5rem;
}

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.crumbs li:not(:last-child)::after {
  content: "/";
  margin-left: 0.55rem;
  color: var(--ink-soft);
}

.crumbs a {
  color: var(--ink-soft);
  text-decoration: none;
}

.crumbs a:hover {
  text-decoration: underline;
  text-underline-offset: 0.14em;
  color: var(--ink);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .tool-go {
    opacity: 1;
    transform: none;
  }

  .product-frame,
  .product-frame-total {
    animation: none !important;
  }
}

@media (max-width: 899px) {
  .home-stage {
    align-items: stretch;
  }

  .product-frame {
    max-width: none;
  }
}

/* Range band — low/high estimate with midpoint marker (home + tools) */
.range-band {
  margin: var(--space-sm) 0 var(--space-lg);
}

.range-band[hidden] {
  display: none !important;
}

.range-band-track {
  position: relative;
  height: 8px;
  border-radius: 999px;
  background: rgba(245, 243, 239, 0.08);
}

.range-band-fill {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--pine), var(--pine-dark));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.6s var(--ease);
}

.range-band-mid {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 13px;
  height: 13px;
  margin: -6.5px 0 0 -6.5px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--pine);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  transition: left 0.6s var(--ease);
}

.range-band-scale {
  display: flex;
  justify-content: space-between;
  margin-top: 0.45rem;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

/* Result actions (Copy summary) */
.result-actions {
  margin: 0 0 var(--space-md);
}

.ghost-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.ghost-btn:hover {
  background: rgba(245, 243, 239, 0.06);
}

.ghost-btn:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.ghost-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.ghost-btn.is-copied {
  color: var(--ok-text);
  border-color: var(--ok-text);
}

/* Cross-tool next steps */
.next-steps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  margin: 0 0 var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--line);
}

.next-steps[hidden] {
  display: none !important;
}

.next-steps-label {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.next-steps a {
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 0.05em;
}

.next-steps a:hover {
  color: var(--accent-text);
  border-bottom-color: var(--accent-text);
}

.analytics-next-step {
  margin: 1.15rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.analytics-next-step .analytics-cta {
  display: inline-flex;
}

.analytics-cta:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius);
}

/* ─── Analytics-first hero ─── */
.hero-feature {
  display: grid;
  gap: var(--space-xl);
  align-items: center;
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--line);
}

@media (min-width: 900px) {
  .hero-feature {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: var(--space-2xl);
  }
}

.hero-feature-copy {
  max-width: 36rem;
}

.hero-feature .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--accent-text);
  background: rgba(48, 142, 123, 0.08);
}

.hero-feature .eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(48, 142, 123, 0.6);
}

.hero-headline {
  margin: 1rem 0 1.1rem;
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6.4vw, 4.25rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.04;
  color: var(--ink);
}

.hero-sub {
  margin: 0 0 var(--space-lg);
  max-width: 38ch;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 1.9vw, 1.2rem);
  line-height: 1.55;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 0.85rem;
  align-items: center;
  margin: 0 0 var(--space-md);
}

.hero-cta-row .btn {
  padding: 0.85rem 1.4rem;
  font-size: 1rem;
}

.hero-note {
  margin: var(--space-sm) 0 0;
  color: var(--ink-soft);
  font-size: 0.85rem;
  letter-spacing: 0.01em;
}

/* Homepage decision instrument */
.decision-instrument {
  position: relative;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--surface);
  background-size: 28px 28px;
  box-shadow:
    0 1px 0 rgba(245, 243, 239, 0.05) inset,
    0 28px 72px rgba(0, 0, 0, 0.42);
}

.decision-instrument::before,
.decision-instrument::after {
  content: "";
  position: absolute;
  top: -1px;
  height: 2px;
}

.decision-instrument::before {
  right: 20%;
  left: 0;
  background: var(--accent);
}

.decision-instrument::after {
  right: 0;
  width: 20%;
  background: var(--signal);
}

.instrument-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  padding: 1rem 1.1rem 0.9rem;
  border-bottom: 1px solid var(--line);
  background: rgba(12, 12, 12, 0.58);
}

.instrument-overline,
.story-stage-index {
  margin: 0;
  color: var(--accent-text);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.instrument-head h2 {
  margin: 0.35rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.18rem, 2vw, 1.45rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.instrument-status {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.4rem;
  padding: 0.28rem 0.45rem;
  border: 1px solid var(--signal-line);
  border-radius: 2px;
  color: var(--signal-text);
  background: var(--signal-soft);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
}

.instrument-status::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--signal);
}

.instrument-plot {
  padding: 0.55rem 1rem 0.8rem;
  border-bottom: 1px solid var(--line);
  background: rgba(12, 12, 12, 0.24);
}

.instrument-plot svg {
  display: block;
  width: 100%;
  height: auto;
}

.instrument-grid path {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.instrument-band {
  fill: var(--signal-soft);
}

.instrument-curve {
  fill: none;
  stroke-width: 2.4;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
}

.instrument-curve-search {
  stroke: var(--accent);
}

.instrument-curve-social {
  stroke: var(--signal);
}

.instrument-bound rect {
  fill: var(--signal-soft);
  stroke: var(--signal-line);
  stroke-dasharray: 3 4;
}

.instrument-bound path {
  fill: none;
  stroke: var(--signal);
  stroke-width: 1.2;
  stroke-dasharray: 3 4;
  vector-effect: non-scaling-stroke;
}

.instrument-points circle {
  stroke: var(--surface);
  stroke-width: 3;
  vector-effect: non-scaling-stroke;
}

.instrument-point-search {
  fill: var(--accent);
}

.instrument-point-social {
  fill: var(--signal);
}

.instrument-axis-labels {
  fill: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.instrument-axis-labels text:last-child {
  fill: var(--signal-text);
}

.instrument-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.8rem;
  padding: 0.15rem 0.1rem 0;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.instrument-legend span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.instrument-legend i {
  display: inline-block;
  width: 0.85rem;
  height: 2px;
}

.instrument-legend .legend-search {
  background: var(--accent);
}

.instrument-legend .legend-social {
  background: var(--signal);
}

.instrument-legend .legend-band {
  height: 0.42rem;
  border: 1px solid var(--signal-line);
  background: var(--signal-soft);
}

.instrument-readout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  background: rgba(12, 12, 12, 0.46);
}

.instrument-readout > div {
  min-width: 0;
  padding: 0.85rem 0.9rem 0.95rem;
}

.instrument-readout > div + div {
  border-left: 1px solid var(--line);
}

.instrument-readout dt,
.story-checks dt,
.story-boundary dt {
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 0.57rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.35;
  text-transform: uppercase;
}

.instrument-readout dt span {
  margin-right: 0.28rem;
  color: var(--accent-text);
}

.instrument-readout > div:nth-child(2) dt span {
  color: var(--signal-text);
}

.instrument-readout dd,
.story-checks dd,
.story-boundary dd {
  margin: 0.42rem 0 0;
  color: var(--ink);
  font-size: 0.7rem;
  line-height: 1.5;
}

.instrument-readout strong {
  color: var(--signal-text);
  font-family: var(--font-mono);
  font-weight: 600;
}

.instrument-caveat {
  margin: 0;
  padding: 0.65rem 0.9rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  background: rgba(12, 12, 12, 0.7);
  font-family: var(--font-mono);
  font-size: 0.57rem;
  letter-spacing: 0.015em;
  line-height: 1.45;
}

@media (prefers-reduced-motion: no-preference) {
  .decision-instrument[data-motion="ready"] .instrument-curve {
    opacity: 0.35;
    stroke-dasharray: 1;
    stroke-dashoffset: 1;
  }

  .decision-instrument[data-motion="ready"] .instrument-band,
  .decision-instrument[data-motion="ready"] .instrument-bound,
  .decision-instrument[data-motion="ready"] .instrument-points {
    opacity: 0;
  }

  .decision-instrument[data-motion="ready"] .instrument-readout > div {
    opacity: 0.45;
    transform: translateY(5px);
  }

  .decision-instrument[data-motion="active"] .instrument-curve {
    opacity: 1;
    stroke-dashoffset: 0;
    transition:
      stroke-dashoffset 0.85s var(--ease),
      opacity 0.3s var(--ease);
  }

  .decision-instrument[data-motion="active"] .instrument-curve-social {
    transition-delay: 0.1s;
  }

  .decision-instrument[data-motion="active"] .instrument-band {
    opacity: 1;
    transition: opacity 0.42s var(--ease) 0.34s;
  }

  .decision-instrument[data-motion="active"] .instrument-bound,
  .decision-instrument[data-motion="active"] .instrument-points {
    opacity: 1;
    transition: opacity 0.35s var(--ease) 0.48s;
  }

  .decision-instrument[data-motion="active"] .instrument-readout > div {
    opacity: 1;
    transform: none;
    transition:
      opacity 0.34s var(--ease),
      transform 0.34s var(--ease);
  }

  .decision-instrument[data-motion="active"]
    .instrument-readout > div:nth-child(2) {
    transition-delay: 0.08s;
  }

  .decision-instrument[data-motion="active"]
    .instrument-readout > div:nth-child(3) {
    transition-delay: 0.16s;
  }
}

@media (max-width: 560px) {
  .instrument-head {
    gap: var(--space-sm);
  }

  .instrument-readout {
    grid-template-columns: 1fr;
  }

  .instrument-readout > div {
    display: grid;
    grid-template-columns: 6.7rem minmax(0, 1fr);
    gap: 0.6rem;
    padding-block: 0.7rem;
    border-top: 1px solid var(--line);
  }

  .instrument-readout > div + div {
    border-left: 0;
  }

  .instrument-readout dd {
    margin-top: 0;
  }

  .instrument-plot {
    padding-inline: 0.65rem;
  }
}

/* ─── Homepage analytical story ─── */
.decision-story {
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--line);
}

.decision-story-head {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(14rem, 0.65fr);
  gap: 0.5rem var(--space-xl);
  align-items: end;
  margin-bottom: var(--space-lg);
}

.decision-story-head .section-kicker {
  grid-column: 1 / -1;
}

.decision-story-head h2 {
  margin: 0;
  max-width: 19ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3.15rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.decision-story-head > p:last-child {
  margin: 0;
  max-width: 37ch;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.decision-story-stages {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
  list-style: none;
}

.decision-story-stage {
  min-width: 0;
  padding: var(--space-lg);
  border-bottom: 1px solid var(--line-strong);
}

.decision-story-stage + .decision-story-stage {
  border-left: 1px solid var(--line-strong);
}

.decision-story-stage h3 {
  margin: 0.75rem 0 0.65rem;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  line-height: 1.16;
  letter-spacing: 0;
}

.story-stage-copy {
  min-height: 6.2em;
  margin: 0 0 var(--space-md);
  color: var(--ink-soft);
  font-size: 0.88rem;
  line-height: 1.55;
}

.story-table-wrap {
  max-width: 100%;
  overflow-x: auto;
}

.story-table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.story-table-wrap caption {
  padding: 0 0 0.45rem;
  color: var(--ink-soft);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-align: left;
  text-transform: uppercase;
}

.story-table-wrap th,
.story-table-wrap td {
  padding: 0.5rem 0.35rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.76rem;
  text-align: right;
  white-space: nowrap;
}

.story-table-wrap th:first-child,
.story-table-wrap td:first-child {
  padding-left: 0;
  text-align: left;
}

.story-table-wrap th:last-child,
.story-table-wrap td:last-child {
  padding-right: 0;
}

.story-table-wrap thead th {
  color: var(--ink-soft);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.story-table-wrap tbody th:first-child {
  color: var(--ink);
  font-weight: 500;
}

.story-checks {
  margin: 0;
}

.story-checks > div {
  padding: 0.65rem 0;
  border-top: 1px solid var(--line);
}

.story-checks dd {
  margin-top: 0.2rem;
  color: var(--ink-soft);
}

.story-boundary {
  padding: var(--space-md);
  border: 1px solid rgba(48, 142, 123, 0.45);
  background: rgba(48, 142, 123, 0.06);
}

.story-boundary-action {
  margin: 0 0 var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--font-display);
  font-size: 1.15rem;
  line-height: 1.35;
}

.story-boundary-action strong {
  color: var(--accent-text);
  font-weight: 700;
}

.story-boundary dl {
  display: grid;
  gap: var(--space-sm);
  margin: 0;
}

.story-boundary dd {
  margin-top: 0.2rem;
}

@media (prefers-reduced-motion: no-preference) {
  .decision-story[data-motion="ready"] .decision-story-stage {
    opacity: 0.72;
    transform: translateY(10px);
  }

  .decision-story[data-motion="ready"] .decision-story-stages::after,
  .decision-story[data-motion="active"] .decision-story-stages::after {
    content: "";
    position: absolute;
    top: -1px;
    right: 0;
    left: 0;
    height: 2px;
    background: var(--accent);
    pointer-events: none;
    transform: scaleX(0);
    transform-origin: left center;
  }

  .decision-story[data-motion="active"] .decision-story-stages::after {
    transform: scaleX(1);
    transition: transform 0.65s var(--ease);
  }

  .decision-story[data-motion="active"] .decision-story-stage {
    opacity: 1;
    transform: none;
    transition:
      opacity 0.48s var(--ease),
      transform 0.48s var(--ease);
  }

  .decision-story[data-motion="active"]
    .decision-story-stage:nth-child(2) {
    transition-delay: 0.09s;
  }

  .decision-story[data-motion="active"]
    .decision-story-stage:nth-child(3) {
    transition-delay: 0.18s;
  }
}

@media (max-width: 899px) {
  .decision-story-head {
    grid-template-columns: 1fr;
  }

  .decision-story-head .section-kicker {
    grid-column: auto;
  }

  .decision-story-stages {
    grid-template-columns: 1fr;
  }

  .decision-story-stage {
    padding-inline: 0;
  }

  .decision-story-stage + .decision-story-stage {
    border-left: 0;
  }

  .story-stage-copy {
    min-height: 0;
  }
}

@media (max-width: 560px) {
  .decision-story {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
  }

  .decision-story-stage {
    padding-block: var(--space-lg);
  }
}

/* ─── Featured analytics cards ─── */
.feature-grid {
  display: grid;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

@media (min-width: 760px) {
  .feature-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

.feature-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: var(--space-lg);
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  transition:
    border-color 0.25s var(--ease),
    transform 0.25s var(--ease),
    box-shadow 0.25s var(--ease);
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 6px;
  background: linear-gradient(135deg, rgba(48, 142, 123, 0.04) 0%, transparent 50%);
  pointer-events: none;
  opacity: 0.6;
}

.feature-card:hover,
.feature-card:focus-within {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.32);
}

.feature-name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 1.75rem);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.12;
  color: var(--ink);
}

.feature-tagline {
  margin: -0.3rem 0 0;
  color: var(--accent-text);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.feature-desc {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
  line-height: 1.6;
  max-width: 44ch;
}

.feature-io {
  display: grid;
  gap: 0.45rem;
  margin: 0.25rem 0 0;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper);
  font-size: 0.82rem;
}

.feature-io > div {
  display: grid;
  grid-template-columns: 5rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
}

.feature-io dt {
  color: var(--ink-soft);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.7rem;
}

.feature-io dd {
  margin: 0;
  color: var(--ink);
  font-weight: 500;
}

.feature-cta {
  margin-top: auto;
  padding-top: 0.4rem;
  color: var(--accent-text);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-bottom: 1px solid transparent;
  transition: gap 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.feature-cta:hover,
.feature-cta:focus-visible {
  gap: 0.7rem;
  color: var(--accent-text);
  border-bottom-color: var(--accent-text);
}

.feature-cta:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius);
}

/* ─── Calculators section (compact, secondary) ─── */
.section-calculators {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--line);
}

.section-calculators .tool-link {
  padding: 0.85rem 0;
}

.section-calculators .tool-name {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
}

.section-calculators .tool-intent {
  font-size: 0.82rem;
}

/* ─── Sr-only utility (for chart data tables) ─── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ─── Premium analytics instrument refinements ─── */
body {
  font-variant-numeric: proportional-nums;
  letter-spacing: -0.006em;
}

.atmosphere {
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    radial-gradient(
      ellipse 65% 45% at 8% -10%,
      rgba(66, 162, 142, 0.12) 0%,
      transparent 62%
    ),
    radial-gradient(
      ellipse 44% 32% at 98% 78%,
      rgba(212, 168, 92, 0.055) 0%,
      transparent 68%
    ),
    var(--paper);
  background-size:
    56px 56px,
    56px 56px,
    auto,
    auto,
    auto;
}

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

.top.is-home {
  border-bottom-color: var(--line-strong);
}

.brand-logo {
  filter: drop-shadow(0 0 7px rgba(66, 162, 142, 0.2));
}

.brand:hover .brand-logo {
  filter: drop-shadow(0 0 11px rgba(66, 162, 142, 0.3));
}

.brand-text,
.foot-brand {
  font-weight: 600;
  letter-spacing: -0.03em;
}

.site-nav a {
  font-size: 0.82rem;
  font-weight: 500;
}

.site-nav a[aria-current="page"]::after {
  height: 2px;
  background: linear-gradient(90deg, var(--accent) 0 72%, var(--signal) 72%);
}

.hero-home h1,
.home-stage-copy h1,
.hero:not(.hero-home) h1,
.hero-headline,
.decision-story-head h2 {
  font-weight: 600;
  letter-spacing: -0.055em;
}

.hero-home h1,
.home-stage-copy h1 {
  font-size: clamp(2.65rem, 6.5vw, 4.1rem);
  line-height: 0.99;
}

.hero-headline {
  max-width: 11.5ch;
  font-size: clamp(2.55rem, 5.8vw, 3.95rem);
  line-height: 0.98;
}

.hero:not(.hero-home) h1 {
  line-height: 1;
}

.hero-tagline,
.lede,
.hero-sub {
  letter-spacing: -0.018em;
}

.hero-feature {
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
  padding-top: var(--space-sm);
  padding-bottom: var(--space-2xl);
}

@media (min-width: 900px) {
  .hero-feature {
    grid-template-columns: minmax(0, 0.88fr) minmax(30rem, 1.12fr);
  }
}

.eyebrow,
.hero-meta,
.section-kicker,
.tool-count,
.tool-index,
.feature-tagline,
.feature-io,
.story-table-wrap,
.home-seo-line,
.crumbs,
.foot-col h2,
.next-steps-label {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.eyebrow,
.section-kicker,
.hero-meta {
  color: var(--accent-text);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.hero-feature .eyebrow {
  border-radius: 2px;
  background: rgba(66, 162, 142, 0.07);
}

.hero-feature .eyebrow::before {
  border-radius: 1px;
  box-shadow: none;
}

.btn,
.text-cta,
.feature-cta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: -0.01em;
}

.btn {
  min-height: 2.8rem;
  border-color: var(--accent);
  border-radius: 2px;
  background: var(--accent);
  color: #07110e;
}

.btn:hover {
  border-color: var(--accent-text);
  background: var(--accent-text);
  color: #07110e;
}

.btn-secondary {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--ink-soft);
}

.text-cta {
  border-bottom-color: var(--line-strong);
}

.tool-list-head {
  align-items: end;
  border-bottom-color: var(--line-strong);
}

.section-block h2,
.tool-list-head h2,
.feature-name,
.tool-name,
.split-list h3,
.trust-item h3,
.prose h2,
.faq-list summary {
  font-weight: 600;
  letter-spacing: -0.035em;
}

.tool-link {
  gap: var(--space-sm) var(--space-lg);
  padding: 1rem 0.75rem;
  border-bottom-color: var(--line);
}

.tool-index {
  color: var(--accent-text);
  font-size: 0.66rem;
}

.tool-intent {
  color: var(--signal-text);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: -0.01em;
}

@media (hover: hover) {
  .tool-link:hover {
    background:
      linear-gradient(90deg, rgba(66, 162, 142, 0.06), transparent 58%);
    transform: translateX(2px);
  }
}

.decision-story {
  position: relative;
}

.decision-story-head {
  margin-bottom: var(--space-xl);
}

.decision-story-stages {
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    rgba(20, 23, 21, 0.74);
  background-size: 28px 28px;
}

.decision-story-stage {
  padding: clamp(1.1rem, 2.4vw, 1.65rem);
  border-bottom: 0;
  background: rgba(12, 12, 12, 0.42);
}

.decision-story-stage h3 {
  font-weight: 600;
  letter-spacing: -0.04em;
}

.story-table-wrap table {
  font-family: var(--font-mono);
}

.story-checks dt {
  color: var(--accent-text);
}

.story-boundary {
  border-color: var(--signal-line);
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--signal-soft);
  background-size: 20px 20px;
}

.story-boundary-action {
  font-weight: 600;
  letter-spacing: -0.025em;
}

.story-boundary-action strong {
  color: var(--signal-text);
  font-family: var(--font-mono);
}

.feature-grid {
  gap: 1px;
  border: 1px solid var(--line-strong);
  background: var(--line-strong);
}

.feature-card {
  overflow: hidden;
  border: 0;
  border-radius: 0;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--surface);
  background-size: 28px 28px;
}

.feature-card::before {
  inset: 0 24% auto 0;
  height: 2px;
  border-radius: 0;
  background: var(--accent);
  opacity: 1;
}

.feature-card:nth-child(even)::before {
  right: 0;
  left: 24%;
  background: var(--signal);
}

.feature-card:hover,
.feature-card:focus-within {
  border-color: transparent;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
  transform: translateY(-1px);
}

.feature-tagline {
  font-size: 0.68rem;
  letter-spacing: 0;
}

.feature-card:nth-child(even) .feature-tagline {
  color: var(--signal-text);
}

.feature-io {
  border-radius: 2px;
  background: rgba(12, 12, 12, 0.72);
  font-size: 0.68rem;
}

.feature-io dt {
  font-size: 0.58rem;
}

.feature-cta {
  color: var(--accent-text);
}

.feature-card:nth-child(even) .feature-cta {
  color: var(--signal-text);
}

.prose {
  max-width: 66ch;
}

.prose h2 {
  margin-top: 2.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-strong);
}

.prose code {
  font-family: var(--font-mono);
}

.maker-card {
  border-left-width: 1px;
  border-radius: 2px;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    var(--surface);
  background-size: 24px 24px;
}

.maker-card::before {
  content: "";
  align-self: stretch;
  width: 2px;
  background: linear-gradient(var(--accent) 0 72%, var(--signal) 72%);
}

.data-table {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.data-table thead th {
  color: var(--accent-text);
  font-size: 0.62rem;
}

.foot {
  font-size: 0.8rem;
}

.foot-grid {
  border-top-color: var(--line-strong);
}

@media (max-width: 899px) {
  .hero-feature {
    padding-top: 0;
  }

  .decision-story-stages {
    border-right: 0;
    border-left: 0;
  }

  .decision-story-stage {
    background: transparent;
  }
}

@media (max-width: 560px) {
  .hero-headline {
    max-width: 12ch;
    font-size: clamp(2.45rem, 12vw, 3.35rem);
  }

  .hero-feature {
    gap: var(--space-xl);
  }

  .site-nav a {
    font-size: clamp(0.68rem, 2.75vw, 0.76rem);
  }

  .tool-link {
    padding-inline: 0.25rem;
  }

  .feature-card {
    padding: var(--space-md);
  }
}

/* ─── Homepage identity sharpening: signal + glow + locator ─── */
.top.is-home {
  position: relative;
  gap: 0.8rem var(--space-lg);
  padding-bottom: 0.7rem;
  border-bottom: 0;
}

.top.is-home .brand {
  isolation: isolate;
  gap: 0.68rem;
}

.top.is-home .brand::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 50%;
  left: 1.4rem;
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(66, 162, 142, 0.17) 0%,
    rgba(66, 162, 142, 0.055) 38%,
    transparent 70%
  );
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.top.is-home .brand-logo {
  width: min(49px, 13vw);
  filter:
    drop-shadow(0 0 6px rgba(66, 162, 142, 0.4))
    drop-shadow(0 0 15px rgba(66, 162, 142, 0.16));
}

.top.is-home .brand:hover .brand-logo {
  filter:
    drop-shadow(0 0 7px rgba(66, 162, 142, 0.5))
    drop-shadow(0 0 18px rgba(66, 162, 142, 0.2));
}

.top.is-home .brand-text {
  position: relative;
  padding-left: 0.72rem;
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: -0.035em;
}

.top.is-home .brand-text::before {
  content: "";
  position: absolute;
  top: 0.05em;
  bottom: 0.05em;
  left: 0;
  width: 1px;
  background: linear-gradient(var(--accent) 0 62%, var(--signal) 62%);
  opacity: 0.72;
}

.header-signal-rail,
.instrument-signal-rail {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.85fr) minmax(0, 0.8fr);
  width: 100%;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  text-transform: uppercase;
}

.header-signal-rail {
  flex: 1 0 100%;
  gap: 0.35rem;
}

.header-signal-rail span,
.instrument-signal-rail span {
  position: relative;
  min-width: 0;
  border-top: 2px solid var(--line-strong);
  color: var(--ink-soft);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.header-signal-rail span {
  padding-top: 0.28rem;
  font-size: 0.48rem;
  line-height: 1.2;
}

.header-signal-rail span::before,
.instrument-signal-rail span::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 1px;
  height: 6px;
  background: currentColor;
}

.header-signal-rail [data-signal="evidence"],
.instrument-signal-rail [data-signal="evidence"] {
  border-top-color: var(--accent);
  color: var(--accent-text);
}

.header-signal-rail [data-signal="bound"],
.instrument-signal-rail [data-signal="bound"] {
  border-top-color: var(--signal);
  color: var(--signal-text);
}

.header-signal-rail [data-signal="recheck"],
.instrument-signal-rail [data-signal="recheck"] {
  border-top-color: rgba(232, 238, 233, 0.34);
}

.shell-home .hero-headline {
  max-width: 12.25ch;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.025;
}

.hero-cta-row .hero-primary-cta {
  display: inline-grid;
  grid-template-columns: minmax(0, 1fr) 3rem;
  min-width: 14.25rem;
  min-height: 3rem;
  overflow: hidden;
  padding: 0;
  border-color: var(--accent-text);
  border-radius: 999px;
  background: transparent;
  box-shadow:
    0 1px 0 rgba(245, 243, 239, 0.12) inset,
    0 10px 26px rgba(0, 0, 0, 0.2);
  color: #07110e;
}

.hero-cta-label,
.hero-cta-arrow {
  display: inline-flex;
  align-items: center;
  align-self: stretch;
  justify-content: center;
}

.hero-cta-label {
  padding: 0.72rem 1.1rem 0.74rem 1.25rem;
  background: var(--accent);
  font-weight: 600;
  line-height: 1.1;
  white-space: nowrap;
}

.hero-cta-arrow {
  border-left: 1px solid rgba(7, 17, 14, 0.34);
  background: var(--signal);
}

.hero-cta-arrow::before {
  content: "→";
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1;
}

.hero-primary-cta:hover {
  border-color: var(--signal-text);
  background: transparent;
  color: #07110e;
}

.decision-instrument {
  isolation: isolate;
  box-shadow:
    0 1px 0 rgba(245, 243, 239, 0.06) inset,
    0 28px 72px rgba(0, 0, 0, 0.42),
    0 0 42px rgba(66, 162, 142, 0.075);
}

.decision-instrument::before,
.decision-instrument::after {
  content: none;
}

.instrument-locator {
  position: absolute;
  z-index: 5;
  width: 15px;
  height: 15px;
  border-color: var(--accent-text);
  border-style: solid;
  pointer-events: none;
}

.locator-nw {
  top: 6px;
  left: 6px;
  border-width: 1px 0 0 1px;
}

.locator-ne {
  top: 6px;
  right: 6px;
  border-width: 1px 1px 0 0;
  border-color: var(--signal-text);
}

.locator-se {
  right: 6px;
  bottom: 6px;
  border-width: 0 1px 1px 0;
  border-color: var(--signal-text);
}

.locator-sw {
  bottom: 6px;
  left: 6px;
  border-width: 0 0 1px 1px;
}

.instrument-signal-rail {
  position: relative;
  z-index: 1;
  gap: 0.32rem;
  padding: 0.72rem 1.1rem 0.5rem;
  border-bottom: 1px solid var(--line);
  background: rgba(12, 12, 12, 0.76);
}

.instrument-signal-rail span {
  padding-top: 0.25rem;
  font-size: 0.5rem;
  font-weight: 600;
  line-height: 1.2;
}

.instrument-readout > div {
  position: relative;
  cursor: pointer;
  outline: none;
}

.instrument-readout > div::before {
  content: "";
  position: absolute;
  top: -1px;
  right: 0.9rem;
  left: 0.9rem;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  transform: scaleX(0.35);
  transform-origin: left center;
}

.instrument-readout > div:nth-child(2)::before {
  background: var(--signal);
}

.instrument-readout > div:nth-child(3)::before {
  background: var(--ink-soft);
}

.instrument-readout > div:focus-visible {
  box-shadow: 0 0 0 2px var(--focus-ring) inset;
}

.decision-instrument[data-focus-state="observation"]
  .instrument-curve-social {
  opacity: 0.36;
}

.decision-instrument[data-focus-state="observation"] .instrument-band,
.decision-instrument[data-focus-state="observation"] .instrument-bound,
.decision-instrument[data-focus-state="observation"]
  .instrument-point-social {
  opacity: 0.42;
}

.decision-instrument[data-focus-state="observation"]
  .instrument-curve-search {
  stroke-width: 3.25;
  filter: drop-shadow(0 0 4px rgba(66, 162, 142, 0.62));
}

.decision-instrument[data-focus-state="observation"]
  .instrument-point-search {
  filter: drop-shadow(0 0 5px rgba(66, 162, 142, 0.7));
  transform: scale(1.28);
  transform-box: fill-box;
  transform-origin: center;
}

.decision-instrument[data-focus-state="observation"]
  .instrument-readout > div:first-child,
.decision-instrument[data-focus-state="bound"]
  .instrument-readout > div:nth-child(2),
.decision-instrument[data-focus-state="recheck"]
  .instrument-readout > div:nth-child(3) {
  background: rgba(245, 243, 239, 0.045);
}

.decision-instrument[data-focus-state="observation"]
  .instrument-readout > div:first-child::before,
.decision-instrument[data-focus-state="bound"]
  .instrument-readout > div:nth-child(2)::before,
.decision-instrument[data-focus-state="recheck"]
  .instrument-readout > div:nth-child(3)::before {
  opacity: 1;
  transform: scaleX(1);
}

.decision-instrument[data-focus-state="bound"] .instrument-curve-search {
  opacity: 0.62;
}

.decision-instrument[data-focus-state="bound"] .instrument-curve-social {
  stroke-width: 3.1;
  filter: drop-shadow(0 0 4px rgba(212, 168, 92, 0.58));
}

.decision-instrument[data-focus-state="bound"] .instrument-band {
  fill: rgba(212, 168, 92, 0.18);
  opacity: 1;
}

.decision-instrument[data-focus-state="bound"] .instrument-bound {
  filter: drop-shadow(0 0 4px rgba(212, 168, 92, 0.48));
}

.decision-instrument[data-focus-state="bound"] .instrument-point-social {
  filter: drop-shadow(0 0 5px rgba(212, 168, 92, 0.68));
  transform: scale(1.25);
  transform-box: fill-box;
  transform-origin: center;
}

.decision-instrument[data-focus-state="recheck"] .instrument-curve {
  opacity: 0.64;
}

.decision-instrument[data-focus-state="recheck"] .instrument-band {
  opacity: 0.4;
}

.decision-instrument[data-focus-state="recheck"] .instrument-points {
  opacity: 1;
  filter: drop-shadow(0 0 5px rgba(245, 243, 239, 0.44));
}

.decision-instrument[data-focus-state="recheck"]
  .instrument-points circle {
  transform: scale(1.3);
  transform-box: fill-box;
  transform-origin: center;
}

@media (prefers-reduced-motion: no-preference) {
  .top.is-home .brand-logo,
  .hero-primary-cta,
  .hero-cta-arrow::before,
  .instrument-curve,
  .instrument-band,
  .instrument-bound,
  .instrument-points,
  .instrument-points circle,
  .instrument-readout > div,
  .instrument-readout > div::before {
    transition:
      color 0.22s var(--ease),
      background-color 0.22s var(--ease),
      border-color 0.22s var(--ease),
      opacity 0.28s var(--ease),
      filter 0.28s var(--ease),
      stroke-width 0.28s var(--ease),
      transform 0.28s var(--ease);
    transition-delay: 0s;
  }

  .hero-primary-cta:hover .hero-cta-arrow::before {
    transform: translateX(3px);
  }
}

.decision-instrument[data-motion="reduced"] .instrument-readout > div {
  transition: none;
}

@media (prefers-reduced-motion: reduce) {
  .top.is-home .brand-logo,
  .hero-primary-cta,
  .hero-cta-arrow::before,
  .instrument-curve,
  .instrument-band,
  .instrument-bound,
  .instrument-points,
  .instrument-points circle,
  .instrument-readout > div,
  .instrument-readout > div::before {
    transition: none;
  }
}

@media (max-width: 560px) {
  .top.is-home {
    gap: 0.62rem;
    padding-bottom: 0.62rem;
  }

  .header-signal-rail {
    gap: 0.22rem;
  }

  .header-signal-rail span {
    overflow: hidden;
    font-size: 0.44rem;
    text-overflow: ellipsis;
  }

  .shell-home .hero-headline {
    max-width: 12ch;
    font-size: clamp(2.35rem, 11.25vw, 3.15rem);
    letter-spacing: -0.022em;
    line-height: 1.03;
  }

  .hero-cta-row {
    align-items: flex-start;
  }

  .hero-cta-row .hero-primary-cta {
    grid-template-columns: minmax(0, 1fr) 2.9rem;
    min-width: 14.5rem;
  }

  .hero-cta-label {
    padding-inline: 1.05rem 0.9rem;
    font-weight: 500;
  }

  .instrument-signal-rail {
    gap: 0.22rem;
    padding-inline: 0.7rem;
  }

  .instrument-signal-rail span {
    font-size: 0.46rem;
  }

  .instrument-readout > div::before {
    right: 0.7rem;
    left: 0.7rem;
  }
}