/* ==========================================================================
   feezify — site design system
   Palette: warm paper + the product's own signal lights (green/amber/red).
   Type: Newsreader (display, editorial voice) · Inter (UI/body) ·
         JetBrains Mono (metrics, eyebrows — the data flavour of the subject).
   ========================================================================== */

:root {
  --paper: #FAF9F5;
  --paper-deep: #F2F0E8;
  --surface: #FFFFFF;
  --ink: #201F1B;
  --ink-soft: #5A574D;
  --ink-faint: #8A8577;
  --line: #E5E2D6;
  --line-strong: #D6D2C2;

  --green: #2F7D46;
  --green-deep: #266A3A;
  --green-soft: #E7F0E5;
  --amber: #DB8A2B;
  --amber-soft: #F8EDDA;
  --red: #C9503A;
  --red-soft: #F7E4DF;

  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Newsreader", Georgia, serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, monospace;

  --radius-card: 14px;
  --radius-bubble: 18px;
  --maxw: 1080px;
  --maxw-text: 46rem;

  --shadow-card: 0 1px 2px rgba(32, 31, 27, 0.05), 0 8px 24px -12px rgba(32, 31, 27, 0.12);
  --shadow-chat: 0 2px 6px rgba(32, 31, 27, 0.06), 0 24px 48px -24px rgba(32, 31, 27, 0.22);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

::selection { background: var(--amber-soft); }

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: -0.01em;
  display: inline-flex;
  align-items: baseline;
  gap: 0.3rem;
}

.wordmark__dot {
  width: 0.5em;
  height: 0.5em;
  border-radius: 50%;
  background: var(--green);
  transform: translateY(-0.05em);
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  font-size: 0.92rem;
  font-weight: 500;
}

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

.site-header__nav a:hover { color: var(--ink); }

.site-header__nav .nav-cta {
  color: var(--surface);
  background: var(--green);
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
}

.site-header__nav .nav-cta:hover { background: var(--green-deep); color: var(--surface); }

.lang-switch {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.25rem 0.65rem;
}

@media (max-width: 720px) {
  .site-header__nav { gap: 0.9rem; }
  .site-header__nav .nav-docs-hide { display: none; }
}

/* --------------------------------------------------------------------------
   Shared blocks
   -------------------------------------------------------------------------- */

.section {
  padding: 5.5rem 1.5rem;
}

.section--deep { background: var(--paper-deep); }

.section__inner {
  max-width: var(--maxw);
  margin: 0 auto;
}

.section__inner--narrow { max-width: var(--maxw-text); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0 0 1.1rem;
}

.eyebrow::before {
  content: "";
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--green);
  flex: none;
}

.eyebrow--amber::before { background: var(--amber); }
.eyebrow--red::before { background: var(--red); }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.015em;
  margin: 0 0 1.2rem;
}

h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); max-width: 24ch; }

h3 { font-size: 1.35rem; margin-bottom: 0.6rem; }

.lede {
  font-size: 1.15rem;
  color: var(--ink-soft);
  max-width: var(--maxw-text);
}

p { margin: 0 0 1rem; }

em { font-family: var(--font-display); font-size: 1.06em; }

.meta {
  font-size: 0.9rem;
  color: var(--ink-faint);
}

.mono { font-family: var(--font-mono); font-size: 0.85em; }

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.8rem 1.5rem;
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.btn:active { transform: scale(0.98); }

.btn--primary {
  background: var(--green);
  color: var(--surface);
}

.btn--primary:hover { background: var(--green-deep); }

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

.btn--ghost:hover { border-color: var(--ink-soft); background: var(--surface); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin: 1.8rem 0 1rem;
}

/* Cards */

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 1.6rem 1.7rem;
  box-shadow: var(--shadow-card);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.1rem;
  margin: 2.2rem 0 0;
  padding: 0;
  list-style: none;
}

.card-grid > li { display: flex; }
.card-grid .card { flex: 1; }

.card .step-k {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 0.7rem;
}

/* Signal dots */

.dot {
  display: inline-block;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
}

.dot--green { background: var(--green); }
.dot--amber { background: var(--amber); }
.dot--red { background: var(--red); }

/* Serif pull quotes */

.pull-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.5rem, 3.2vw, 2.15rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin: 0;
  max-width: 26ch;
}

.pull-quote cite {
  display: block;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 1.3rem;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  padding: 4.5rem 1.5rem 5.5rem;
  overflow: hidden;
}

.hero__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 4rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.5rem, 5.4vw, 3.9rem);
  font-weight: 500;
  margin-bottom: 1.4rem;
}

.hero h1 em { font-style: italic; font-size: 1em; }

.hero__copy .lede strong { color: var(--ink); }

@media (max-width: 920px) {
  .hero__inner { grid-template-columns: 1fr; gap: 3rem; }
}

/* The signature: a chat window running the day's read */

.chat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-chat);
  overflow: hidden;
  max-width: 460px;
  justify-self: end;
  width: 100%;
}

@media (max-width: 920px) {
  .chat { justify-self: start; }
}

.chat__bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.1rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.chat__lights { display: inline-flex; gap: 0.35rem; }

.chat__lights .dot { width: 0.55rem; height: 0.55rem; }

.chat__title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin: 0 auto;
  transform: translateX(-1.1rem);
}

.chat__thread {
  padding: 1.3rem 1.1rem 0.9rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  min-height: 21rem;
}

.bubble {
  max-width: 85%;
  border-radius: var(--radius-bubble);
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  line-height: 1.5;
}

.bubble--user {
  align-self: flex-end;
  background: var(--ink);
  color: var(--paper);
  border-bottom-right-radius: 6px;
}

.bubble--assistant {
  align-self: flex-start;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-bottom-left-radius: 6px;
  max-width: 94%;
}

.bubble--assistant .read-light {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.read-light .dot { width: 0.8rem; height: 0.8rem; }

.read-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin: 0.7rem 0 0.6rem;
}

.chip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.28rem 0.6rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  white-space: nowrap;
}

.bubble--assistant .read-why { margin: 0; color: var(--ink-soft); font-size: 0.92rem; }

.bubble--assistant .read-rule {
  margin: 0.7rem 0 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--ink);
}

.typing {
  align-self: flex-start;
  display: inline-flex;
  gap: 0.3rem;
  padding: 0.85rem 1rem;
  background: var(--paper-deep);
  border: 1px solid var(--line);
  border-radius: var(--radius-bubble);
  border-bottom-left-radius: 6px;
}

.typing span {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: var(--ink-faint);
  animation: typing-bounce 1.2s infinite ease-in-out;
}

.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes typing-bounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.5; }
  30% { transform: translateY(-4px); opacity: 1; }
}

.chat__input {
  margin: 0.4rem 1.1rem 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.65rem 1.1rem;
  color: var(--ink-faint);
  font-size: 0.92rem;
  background: var(--paper);
}

.chat__input svg { flex: none; }

/* staged reveal (JS adds .is-on; no-JS and reduced-motion show everything) */

html:not(.js) .typing { display: none; }

.js .chat [data-stage] { opacity: 0; transform: translateY(8px); transition: opacity 0.45s ease, transform 0.45s ease; }
.js .chat [data-stage].is-on { opacity: 1; transform: none; }
.js .chat .typing[data-stage] { transition: opacity 0.3s ease; transform: none; }
.js .chat .typing[data-stage].is-off { display: none; }

/* --------------------------------------------------------------------------
   The crossing rule — interactive demo
   -------------------------------------------------------------------------- */

.rule-card {
  border-left: 4px solid var(--amber);
}

.rule-demo { margin-top: 2.2rem; }

.rule-demo__choices {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.1rem 0 1.3rem;
}

.rule-demo__choices button {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 0.55rem 1.05rem;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.rule-demo__choices button:hover { border-color: var(--ink-soft); }

.rule-demo__choices button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.rule-demo__result {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: 1.2rem 1.4rem;
}

.rule-demo__result .dot { width: 1rem; height: 1rem; margin-top: 0.3rem; flex: none; }

.rule-demo__result p { margin: 0; }

.rule-demo__result .verdict { font-weight: 600; }

.rule-demo__result .why { color: var(--ink-soft); font-size: 0.95rem; }

/* --------------------------------------------------------------------------
   Remap table (classic app → AI-native)
   -------------------------------------------------------------------------- */

.remap {
  width: 100%;
  border-collapse: collapse;
  margin-top: 2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  font-size: 0.98rem;
}

.remap-wrap { overflow-x: auto; }

.remap th, .remap td {
  text-align: left;
  padding: 0.95rem 1.3rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.remap thead th {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  background: var(--paper);
}

.remap tbody tr:last-child td { border-bottom: none; }

.remap td:first-child { color: var(--ink-faint); text-decoration: line-through; text-decoration-color: color-mix(in srgb, var(--red) 55%, transparent); }

.remap td:nth-child(2) { font-family: var(--font-mono); font-size: 0.82rem; color: var(--ink-soft); white-space: nowrap; }

.remap td:last-child strong { color: var(--green-deep); }

/* --------------------------------------------------------------------------
   Story timeline
   -------------------------------------------------------------------------- */

.timeline {
  list-style: none;
  margin: 2.4rem 0 0;
  padding: 0;
  border-left: 2px solid var(--line-strong);
}

.timeline li {
  position: relative;
  padding: 0 0 2rem 2rem;
}

.timeline li:last-child { padding-bottom: 0; }

.timeline li::before {
  content: "";
  position: absolute;
  left: -0.48rem;
  top: 0.45rem;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  background: var(--paper);
  border: 2px solid var(--ink-faint);
}

.timeline li:last-child::before { border-color: var(--green); background: var(--green); }

.timeline time {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  display: block;
  margin-bottom: 0.3rem;
}

.timeline p { margin: 0; max-width: 60ch; }

/* --------------------------------------------------------------------------
   Athletes (line-art SVG)
   -------------------------------------------------------------------------- */

.athletes {
  display: flex;
  gap: 2.5rem;
  justify-content: center;
  margin: 2.5rem 0 0;
  flex-wrap: wrap;
}

.athletes figure {
  margin: 0;
  text-align: center;
}

.athletes svg {
  width: 200px;
  height: auto;
  color: var(--ink-soft);
}

.athletes figcaption {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 0.6rem;
}

/* --------------------------------------------------------------------------
   Docs cards, FAQ, waitlist, footer
   -------------------------------------------------------------------------- */

.docs-cards a {
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.docs-cards a:hover { transform: translateY(-3px); border-color: var(--line-strong); }

.docs-cards .card h3 { font-size: 1.15rem; }

.docs-cards .card p { color: var(--ink-soft); font-size: 0.93rem; margin: 0; }

.docs-cards .card .go {
  margin-top: auto;
  padding-top: 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--green-deep);
}

.faq-list {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
}

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

.faq-list summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1.2rem 0.2rem;
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 500;
}

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

.faq-list summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--ink-faint);
  flex: none;
}

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

.faq-list details > p {
  padding: 0 0.2rem 1.3rem;
  margin: 0;
  color: var(--ink-soft);
  max-width: var(--maxw-text);
}

.waitlist-card {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
  padding: 2.6rem 2rem;
}

.waitlist-card h2 { margin-left: auto; margin-right: auto; }

.waitlist-card .formkit-form { margin: 1.2rem auto 0 !important; }

.final-cta { text-align: center; }

.final-cta h2 { margin-left: auto; margin-right: auto; max-width: 28ch; }

.final-cta .lede { margin-left: auto; margin-right: auto; }

.final-cta .btn-row { justify-content: center; }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.2rem 1.5rem;
  background: var(--paper);
}

.site-footer__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.site-footer a { color: inherit; }

.site-footer__lights { display: inline-flex; gap: 0.4rem; margin: 0; }

/* --------------------------------------------------------------------------
   Scroll reveal + motion safety
   -------------------------------------------------------------------------- */

.js .reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.55s ease, transform 0.55s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal, .js .chat [data-stage] { opacity: 1 !important; transform: none !important; transition: none !important; }
  .typing span { animation: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

@media (max-width: 640px) {
  .section { padding: 3.5rem 1.25rem; }
  .hero { padding: 2.5rem 1.25rem 3.5rem; }
  .chat__thread { min-height: 0; }
}