:root {
  --bg: #0b1016;
  --bg-elevated: #121923;
  --ink: #e8eef4;
  --muted: #8b9bb0;
  --accent: #3ecf8e;
  --accent-ink: #06140e;
  --panel: rgba(18, 25, 35, 0.88);
  --panel-solid: #151d28;
  --line: rgba(232, 238, 244, 0.1);
  --line-strong: rgba(232, 238, 244, 0.16);
  --danger: #ff8b8b;
  --shadow: 0 22px 50px rgba(0, 0, 0, 0.35);
  --display: "Outfit", "Avenir Next", "Segoe UI", sans-serif;
  --body: "Figtree", "Avenir Next", "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--body);
  background:
    radial-gradient(920px 480px at 8% -12%, rgba(62, 207, 142, 0.14), transparent 55%),
    radial-gradient(820px 520px at 100% 0%, rgba(90, 140, 200, 0.1), transparent 50%),
    linear-gradient(180deg, #101722 0%, var(--bg) 42%, #080c11 100%);
}

.site-mark {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 20;
  display: block;
  line-height: 0;
  border-radius: 0.5rem;
  transition: transform 140ms ease, opacity 140ms ease;
}

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

.site-mark img {
  display: block;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  object-fit: cover;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.28);
}

.page {
  --motion: 480ms cubic-bezier(0.22, 1, 0.36, 1);
  width: min(100%, 88rem);
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(1.25rem, 3.5vw, 3rem) clamp(1rem, 4vw, 2.5rem) 2rem;
  display: flex;
  flex-direction: column;
  gap: clamp(1.5rem, 3.5vw, 2.75rem);
  transition: gap var(--motion);
}

.intro {
  overflow: visible;
  animation: enter 480ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.intro.compact {
  animation-duration: 360ms;
}

.brand {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(2.4rem, 6.5vw, 3.6rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.1;
  transition: font-size var(--motion);
}

.brand a {
  color: inherit;
  text-decoration: none;
}

.brand a:hover {
  color: var(--accent);
}

.headline {
  margin: 0.85rem 0 0;
  font-family: var(--body);
  font-size: clamp(1.2rem, 2.6vw, 1.45rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.35;
  color: rgba(232, 238, 244, 0.82);
  max-width: 28rem;
  animation: enter 560ms 60ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
  transition:
    font-size var(--motion),
    margin var(--motion),
    color var(--motion);
}

.lead {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 1.02rem;
  font-weight: 400;
  line-height: 1.55;
  max-width: 38rem;
  max-height: 8rem;
  opacity: 1;
  overflow: hidden;
  animation: enter 620ms 110ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
  transition:
    max-height var(--motion),
    opacity 360ms ease,
    margin var(--motion);
}

.cards {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
  animation: enter 700ms 160ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
  transition: margin var(--motion), gap var(--motion);
}

.card {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  padding: 1.15rem 1.2rem 1.2rem;
  background:
    linear-gradient(165deg, rgba(255, 255, 255, 0.04), transparent 55%),
    var(--panel-solid);
  box-shadow: var(--shadow);
  transition:
    border-color 160ms ease,
    transform 160ms ease,
    padding var(--motion),
    box-shadow var(--motion);
}

.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
}

.card-title {
  margin: 0;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--accent);
  transition: font-size var(--motion);
}

.card-text {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.45;
  max-height: 5rem;
  opacity: 1;
  overflow: hidden;
  transition:
    max-height var(--motion),
    opacity 320ms ease,
    margin var(--motion);
}

@media (min-width: 860px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

  .page.answered {
    gap: 1rem;
    height: 100dvh;
    max-height: 100dvh;
    overflow: hidden;
  }

  .page.answered .brand {
    font-size: clamp(1.55rem, 2.4vw, 1.9rem);
  }

  .page.answered .headline {
    margin-top: 0.35rem;
    font-size: 1.05rem;
  }

  .page.answered .lead {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
    pointer-events: none;
  }

  .page.answered .cards {
    margin-top: 0.75rem;
    gap: 0.55rem;
  }

  .page.answered .card {
    padding: 0.55rem 0.75rem;
    box-shadow: none;
  }

  .page.answered .card:hover {
    transform: none;
  }

  .page.answered .card-title {
    font-size: 0.88rem;
    font-weight: 600;
  }

  .page.answered .card-text {
    max-height: 0;
    opacity: 0;
    margin-top: 0;
  }

  .page.answered .ask-panel {
    min-height: 0;
    overflow: hidden;
  }

  .page.answered .result {
    flex: 1 1 auto;
    min-height: 0;
    max-height: none;
    overflow: hidden;
  }

  .page.answered .site-footer {
    flex-shrink: 0;
    padding-top: 0.85rem;
    transition: padding-top var(--motion);
  }
}

@media (min-width: 1100px) {
  .cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1280px) {
  .cards {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.ask-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  min-height: 0;
  padding: 1.2rem 1.25rem 1.25rem;
  border: 1px solid rgba(62, 207, 142, 0.28);
  border-radius: 1.25rem;
  background: rgba(18, 25, 35, 0.72);
  box-shadow: var(--shadow);
  transition: border-color 180ms ease, box-shadow 180ms ease;
  animation: enter 760ms 200ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.ask-panel:focus-within {
  border-color: rgba(62, 207, 142, 0.45);
  box-shadow:
    0 0 0 3px rgba(62, 207, 142, 0.1),
    var(--shadow);
}

.composer {
  margin: 0;
  display: grid;
  gap: 0.4rem;
}

.composer-model {
  margin: 0 0 0 10px;
  justify-self: start;
  font-family: var(--display);
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(139, 155, 176, 0.72);
  line-height: 1;
}

.composer-shell {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 0.45rem 0.45rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel-solid);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.composer-shell:focus-within {
  border-color: rgba(62, 207, 142, 0.45);
  box-shadow: 0 0 0 3px rgba(62, 207, 142, 0.12);
}

.composer input {
  flex: 1;
  min-width: 0;
  border: 0;
  border-radius: 0;
  padding: 0.7rem 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 1.1rem;
  font-weight: 500;
  line-height: 1.4;
  outline: none;
}

.composer input::placeholder {
  color: rgba(139, 155, 176, 0.7);
  font-weight: 400;
}

.composer button,
.again {
  border: 0;
  border-radius: 0.7rem;
  padding: 0.7rem 1.25rem;
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease, opacity 140ms ease, border-color 140ms ease, color 140ms ease;
}

.composer button {
  flex-shrink: 0;
  background: var(--accent);
  color: var(--accent-ink);
}

.composer button:hover:not(:disabled),
.again:hover {
  transform: translateY(-1px);
}

.composer button:disabled {
  opacity: 0.55;
  cursor: wait;
}

.result {
  display: flex;
  flex-direction: column;
  min-height: 0;
  max-height: min(52vh, 36rem);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--panel-solid);
  animation: reveal 560ms cubic-bezier(0.22, 1, 0.36, 1) both;
  transition: min-height var(--motion), max-height var(--motion), flex-grow var(--motion);
}

.result.loading .answer {
  color: var(--muted);
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.result.typing .typing-line {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.result.typing .typing-line::after {
  content: "";
  display: inline-block;
  width: 0.55ch;
  height: 1.05em;
  margin-left: 0.12em;
  vertical-align: -0.12em;
  background: var(--accent);
  animation: caret 700ms steps(1, end) infinite;
}

.answer.fade-in {
  animation: answer-fade 200ms ease both;
}

@keyframes answer-fade {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes caret {
  50% {
    opacity: 0;
  }
}

.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1.15rem;
  border-bottom: 1px solid var(--line);
  flex-shrink: 0;
}

.result-label {
  margin: 0;
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.again {
  padding: 0.4rem 0.85rem;
  font-size: 0.85rem;
  background: rgba(232, 238, 244, 0.04);
  color: var(--ink);
  border: 1px solid var(--line);
}

.again:hover {
  border-color: var(--line-strong);
  background: rgba(232, 238, 244, 0.07);
}

.answer {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 1.15rem 1.25rem 1.35rem;
  font-size: 1.08rem;
  line-height: 1.6;
  scrollbar-width: thin;
  scrollbar-color: rgba(232, 238, 244, 0.2) transparent;
}

.answer.error {
  color: var(--danger);
}

.answer p {
  margin: 0 0 0.85rem;
}

.answer p:last-child,
.answer .md-heading:last-child,
.answer ul:last-child,
.answer ol:last-child {
  margin-bottom: 0;
}

.answer .md-heading {
  margin: 0 0 0.65rem;
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--ink);
}

.answer h3.md-heading {
  font-size: 1.2rem;
  font-weight: 700;
}

.answer h4.md-heading {
  font-size: 1.08rem;
}

.answer h5.md-heading {
  font-size: 1rem;
  color: rgba(232, 238, 244, 0.9);
}

.answer ul,
.answer ol {
  margin: 0 0 0.85rem;
  padding-left: 1.35rem;
}

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

.answer li:last-child {
  margin-bottom: 0;
}

.answer strong {
  font-weight: 700;
  color: #f2f6fa;
}

.answer em {
  font-style: italic;
  color: rgba(232, 238, 244, 0.92);
}

.answer a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.answer code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: rgba(232, 238, 244, 0.08);
  padding: 0.08rem 0.28rem;
  border-radius: 0.25rem;
}

.code-block {
  background: #070b10;
  color: #e8eef4;
  border: 1px solid var(--line);
  border-radius: 0.55rem;
  margin: 0.75rem 0;
  overflow: hidden;
}

.code-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 0.7rem;
  color: rgba(232, 238, 244, 0.55);
  font-size: 0.72rem;
  font-family: var(--display);
  border-bottom: 1px solid var(--line);
}

.code-bar button {
  border: 1px solid rgba(232, 238, 244, 0.18);
  color: #e8eef4;
  background: transparent;
  border-radius: 0.3rem;
  padding: 0.2rem 0.45rem;
  font: inherit;
  cursor: pointer;
}

.code-block pre {
  margin: 0;
  padding: 0.85rem 1rem;
  overflow-x: auto;
  white-space: pre;
}

.code-block code {
  padding: 0;
  background: none;
  color: inherit;
}

.table-scroll {
  overflow-x: auto;
}

.answer table {
  border-collapse: collapse;
  font-size: 0.95em;
  margin: 0.5rem 0;
}

.answer td,
.answer th {
  border: 1px solid var(--line);
  padding: 0.5rem;
  text-align: left;
  vertical-align: top;
}

.more-info {
  animation: enter 860ms 260ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.page.answered .more-info {
  display: none;
}

.more-info > summary {
  cursor: pointer;
  width: fit-content;
  list-style: none;
  font-family: var(--display);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--muted);
  padding: 0.35rem 0;
  transition: color 160ms ease;
}

.more-info > summary::-webkit-details-marker {
  display: none;
}

.more-info > summary::after {
  content: " +";
  color: var(--accent);
  font-weight: 700;
}

.more-info[open] > summary {
  color: var(--text);
  margin-bottom: 0.85rem;
}

.more-info[open] > summary::after {
  content: " −";
}

.more-info > summary:hover {
  color: var(--text);
}

.more-info-body {
  display: grid;
  gap: 1.75rem;
}

.seo-panel {
  display: grid;
  gap: 1rem;
}

.seo-panel h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.compare {
  display: grid;
  gap: 0.85rem;
}

.compare-row {
  display: grid;
  gap: 0.65rem;
  padding: 1.05rem 1.15rem;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background:
    linear-gradient(165deg, rgba(255, 255, 255, 0.03), transparent 55%),
    var(--panel-solid);
}

.compare-label {
  margin: 0;
  font-family: var(--display);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.compare-cols {
  display: grid;
  gap: 0.55rem;
}

.compare-cols p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--muted);
}

.compare-cols strong {
  display: block;
  margin-bottom: 0.15rem;
  font-family: var(--display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

.faq-list {
  display: grid;
  gap: 0.65rem;
}

.faq-list details {
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: rgba(18, 25, 35, 0.55);
  padding: 0.85rem 1.05rem;
}

.faq-list summary {
  cursor: pointer;
  font-family: var(--display);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.02em;
  list-style: none;
}

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

.faq-list summary::after {
  content: "+";
  float: right;
  color: var(--accent);
  font-weight: 700;
}

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

.faq-list details p {
  margin: 0.65rem 0 0;
  color: var(--muted);
  line-height: 1.5;
}

@media (min-width: 900px) {
  .compare-cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }
}

.site-footer {
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 0.55rem;
  animation: enter 820ms 240ms cubic-bezier(0.2, 0.8, 0.2, 1) both;
}

.footer-brand {
  margin: 0;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.25rem;
}

.footer-nav a {
  color: var(--muted);
  text-decoration: none;
  font-family: var(--display);
  font-size: 0.92rem;
  font-weight: 600;
}

.footer-nav a:hover {
  color: var(--accent);
}

.footer-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
  max-width: 48rem;
}

.legal-page .brand {
  font-size: clamp(1.8rem, 5vw, 2.4rem);
}

.legal {
  display: grid;
  gap: 0.35rem;
}

.legal h2 {
  margin: 1.1rem 0 0;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.legal p,
.legal li {
  margin: 0.35rem 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.legal ul {
  margin: 0.35rem 0 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.legal li {
  margin: 0.25rem 0;
}

.legal a {
  color: var(--accent);
}

.legal-page .lead {
  margin-top: 0.45rem;
  font-size: 0.95rem;
}

.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;
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 720px) {
  .site-mark {
    top: 0.75rem;
    left: 0.75rem;
  }

  .site-mark img {
    width: 2rem;
    height: 2rem;
  }

  .page {
    width: 100%;
    padding: 3.25rem 1rem 1.35rem;
    gap: 0.95rem;
  }

  /* Flatten intro so cards can sit below the ask panel. */
  .intro {
    display: contents;
  }

  .brand {
    order: 1;
    font-size: clamp(1.9rem, 8.5vw, 2.45rem);
  }

  .headline {
    order: 2;
    margin-top: 0.35rem;
    font-size: 1.08rem;
    max-width: none;
  }

  .lead {
    order: 3;
    margin-top: 0.4rem;
    font-size: 0.95rem;
    max-width: none;
    max-height: none;
  }

  .ask-panel {
    order: 4;
    gap: 0.85rem;
    padding: 0.95rem 0.95rem 1rem;
    border-radius: 1.1rem;
  }

  .cards {
    order: 5;
    margin-top: 0.35rem;
    gap: 0.65rem;
  }

  .site-footer {
    order: 6;
  }

  .card {
    padding: 0.9rem 1rem;
  }

  .card:hover {
    transform: none;
  }

  .composer {
    gap: 0.35rem;
  }

  .composer-model {
    font-size: 0.55rem;
  }

  .composer-shell {
    padding: 0.4rem 0.4rem 0.4rem 0.9rem;
    gap: 0.55rem;
  }

  .composer input {
    font-size: 1.02rem;
    padding: 0.55rem 0;
  }

  .composer button {
    width: auto;
    min-height: 2.55rem;
    padding: 0.65rem 1.05rem;
  }

  .result {
    max-height: min(42vh, 20rem);
  }

  .result-head {
    padding: 0.75rem 0.95rem;
  }

  .answer {
    padding: 0.95rem 1rem 1.1rem;
    font-size: 1.02rem;
  }

  .footer-note {
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .intro,
  .headline,
  .lead,
  .cards,
  .ask-panel,
  .more-info,
  .seo-panel,
  .site-footer,
  .result {
    animation: none;
  }

  .page,
  .brand,
  .headline,
  .lead,
  .cards,
  .card,
  .card-title,
  .card-text,
  .composer input,
  .composer-shell,
  .composer button,
  .again,
  .result,
  .site-footer,
  .site-mark {
    transition: none;
  }

  .answer.fade-in,
  .result.typing .typing-line::after,
  .card:hover {
    animation: none;
    transform: none;
  }
}