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

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: #000;
  color: #fff;
  font-family: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
  line-height: 1.55;
}

html { height: 100%; }

body.app {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

[hidden] { display: none !important; }

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

button, textarea, input {
  font: inherit;
  color: inherit;
  appearance: none;
  -webkit-appearance: none;
}

.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;
}

.top {
  flex-shrink: 0;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.1rem;
  border-bottom: 1px solid #222;
  background: #000;
  z-index: 5;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.brand svg { width: 28px; height: 28px; display: block; }

.wordmark {
  font-weight: 600;
  letter-spacing: -0.03em;
  font-size: 1rem;
}

.wordmark em {
  font-style: normal;
  font-weight: 700;
  text-decoration: underline;
  text-decoration-color: #555;
  text-underline-offset: 3px;
}

.wordmark span { color: #737373; font-size: 0.72rem; font-weight: 500; }

.nav { display: flex; gap: 0.15rem; align-items: center; }

.nav a {
  color: #a3a3a3;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.4rem 0.65rem;
  border-radius: 999px;
  text-decoration: none;
}

.nav a:hover,
.nav a.is-on {
  color: #fff;
  background: #1a1a1a;
  text-decoration: none;
}

.canvas {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.empty {
  margin: auto;
  width: min(40rem, calc(100% - 2rem));
  text-align: center;
  padding: 2rem 0 1rem;
}

.empty h1 {
  margin: 0 0 1.4rem;
  font-size: clamp(1.45rem, 3.4vw, 1.85rem);
  font-weight: 500;
  letter-spacing: -0.03em;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
}

.chip {
  border: 1px solid #2a2a2a;
  background: #141414;
  color: #e5e5e5;
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font-size: 0.78rem;
  cursor: pointer;
  line-height: 1.3;
}

.chip:hover { background: #1c1c1c; border-color: #3a3a3a; color: #fff; }

.thread {
  display: none;
  width: min(48rem, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0 1rem;
}

.thread.is-on { display: block; }

.row { margin: 0 0 1.35rem; }

.row-user {
  display: flex;
  justify-content: flex-end;
}

.user-pill {
  max-width: 80%;
  background: #2f4a32;
  color: #fff;
  border-radius: 22px;
  padding: 0.7rem 1rem;
  font-size: 0.95rem;
}

.bot {
  color: #f4f4f4;
  font-size: 0.98rem;
}

.bot p { margin: 0.55rem 0; }
.bot p:first-child { margin-top: 0; }
.bot ol, .bot ul { margin: 0.4rem 0 0.7rem; padding-left: 1.2rem; }
.bot li { margin: 0.28rem 0; }
.bot strong { font-weight: 650; }

.caret {
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 1px;
  background: #fff;
  vertical-align: -0.12em;
  animation: blink 1s step-end infinite;
}

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

.actions {
  display: flex;
  gap: 0.15rem;
  margin-top: 0.55rem;
}

.actions button {
  width: 32px;
  height: 32px;
  border: 0;
  background: transparent;
  color: #8a8a8a;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.actions button:hover { background: #1a1a1a; color: #fff; }

.dock {
  flex-shrink: 0;
  background: #000;
  padding: 0.35rem 1rem 1.15rem;
}

.hint {
  text-align: center;
  color: #737373;
  font-size: 0.72rem;
  margin: 0 0 0.55rem;
}

.composer {
  width: min(48rem, 100%);
  margin: 0 auto;
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  background: #2a2a2a;
  border-radius: 999px;
  padding: 0.4rem 0.4rem 0.4rem 1.15rem;
  border: 1px solid #333;
}

.composer:focus-within { border-color: #4a4a4a; }

.composer textarea {
  flex: 1;
  border: 0;
  background: transparent;
  color: #fff;
  resize: none;
  outline: none;
  min-height: 28px;
  max-height: 120px;
  padding: 0.45rem 0;
  line-height: 1.4;
}

.composer textarea::placeholder { color: #8a8a8a; }

.send {
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 50%;
  background: #fff;
  color: #000;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.send:hover { background: #e8e8e8; }
.send:disabled { opacity: 0.4; cursor: default; }

/* Inner pages */
body.page { min-height: 100dvh; }

.page-main {
  width: min(42rem, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 3.2rem 0 4rem;
}

.page-main h1 {
  font-family: Cinzel, "Times New Roman", serif;
  font-weight: 600;
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.page-main h2 {
  font-size: 1.05rem;
  margin: 1.8rem 0 0.45rem;
}

.page-main p, .page-main li { color: #c4c4c4; }
.page-main .lede { font-size: 1.05rem; margin: 0 0 1.5rem; }

.facts { display: grid; gap: 0.2rem; }
.facts article {
  border-top: 1px solid #222;
  padding: 1rem 0;
}
.facts h3 { margin: 0 0 0.3rem; font-size: 1rem; }
.facts p { margin: 0; }

.foot-mini {
  border-top: 1px solid #222;
  padding: 1.1rem 1.2rem 1.4rem;
  color: #666;
  font-size: 0.78rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.foot-mini a { color: #999; }

.ad-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #737373;
  margin: 0 0 0.45rem;
}

.ad-box {
  border: 1px solid #2a2a2a;
  background: #121212;
  border-radius: 12px;
  padding: 0.65rem;
  min-height: 250px;
}

.ad-box.ad-slim { min-height: 100px; }

.ad-box .adsbygoogle {
  display: block;
  min-height: 90px;
}

.ad-mobile {
  display: none;
  flex-shrink: 0;
  padding: 0.75rem 1rem 0.25rem;
}

.ad-mobile .ad-box,
.ad-mobile .ad-box.ad-slim {
  min-height: 90px;
}

.shell {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 48rem) 300px;
  gap: 1.25rem;
  padding: 0 1rem;
  align-items: stretch;
}

.shell-mid {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.shell-mid .canvas { flex: 1; }

.rail-desktop {
  position: sticky;
  top: 0.65rem;
  align-self: start;
  height: calc(100dvh - 7.5rem);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 0 0.4rem;
}

.ad-incontent {
  margin: 1.6rem 0;
}

.page-shell {
  width: min(74rem, calc(100% - 2.5rem));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 42rem) 300px;
  gap: 2rem;
  padding: 3.2rem 0 4rem;
  align-items: start;
}

.page-shell .page-col { min-width: 0; }

.page-shell .page-col h1 {
  font-family: Cinzel, "Times New Roman", serif;
  font-weight: 600;
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
}

.page-shell .page-col h2 {
  font-size: 1.05rem;
  margin: 1.8rem 0 0.45rem;
}

.page-shell .page-col p,
.page-shell .page-col li { color: #c4c4c4; }

.page-shell .lede { font-size: 1.05rem; margin: 0 0 1.5rem; }

@media (max-width: 1100px) {
  .shell {
    grid-template-columns: minmax(0, 1fr);
    padding: 0;
  }
  .shell-gap,
  .rail-desktop { display: none; }
  .ad-mobile { display: block; }
  .page-shell {
    grid-template-columns: minmax(0, 42rem);
    justify-content: center;
  }
  .page-shell .rail-desktop { display: none; }
}

@media (max-width: 640px) {
  .nav .opt { display: none; }
  .user-pill { max-width: 90%; }
}