/* AlphaCoder — page styles on top of brand.css */

.cd-hero {
  min-height: clamp(560px, 78vh, 840px);
}
.cd-hero-photo {
  object-position: 68% 42%;
}

.cd-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(22px, 4vw, 48px);
  align-items: start;
}
.cd-explain { display: flex; flex-direction: column; gap: 18px; margin: 0; padding: 8px 0 0; }
.cd-explain div { padding-top: 16px; border-top: 1px solid var(--line); }
.cd-explain h3 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: -0.03em;
}
.cd-explain p { margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.55; }

.cd-demo {
  border-radius: 22px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(18, 21, 28, 0.96), rgba(8, 9, 12, 0.98));
  box-shadow: 0 40px 90px -46px rgba(0, 0, 0, 0.9);
  overflow: hidden;
}
.cd-demo-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 8, 11, 0.7);
}
.cd-dot { width: 10px; height: 10px; border-radius: 50%; background: rgba(243, 239, 230, 0.16); }
.cd-dot.r { background: #f07167; }
.cd-dot.y { background: #d4b07a; }
.cd-dot.g { background: #7dcea0; }
.cd-demo-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faint);
}
.cd-demo-body {
  padding: 18px 18px 22px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.7;
  color: var(--ink);
}
.cd-line { white-space: pre-wrap; word-break: break-word; }
.cd-line .p { color: var(--ice); }
.cd-line .ice { color: var(--ice); }
.cd-line .ok { color: var(--ok); }
.cd-line .gold { color: var(--gold); }
.cd-line .dim { color: var(--faint); }
.cd-line b { font-weight: 600; }

.cd-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.cd-step {
  padding: 22px 22px 24px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(10, 12, 16, 0.72);
}
.cd-step span {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--gold);
}
.cd-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}
.cd-step p { margin: 0; color: var(--muted); font-size: 0.9rem; line-height: 1.55; }
.cd-code {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #0c0e13;
  color: var(--ice);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  line-height: 1.7;
  overflow-x: auto;
}
.cd-note { margin: 14px 0 0; color: var(--muted); font-size: 0.95rem; }
.cd-note code, .cd-explain code, .cd-step code, .cd-feature code {
  font-family: var(--font-mono);
  font-size: 0.84em;
  color: var(--gold);
}

.cd-feature {
  padding: 26px 26px 28px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(18, 21, 28, 0.9), rgba(10, 12, 16, 0.9));
  border: 1px solid var(--line);
  transition: border-color .25s, transform .35s var(--ease);
}
.cd-feature:hover { transform: translateY(-3px); border-color: rgba(142, 236, 255, 0.35); }
.cd-feature-icon {
  width: 46px; height: 46px; margin-bottom: 16px;
  display: grid; place-items: center;
  border-radius: 13px;
  background: rgba(7, 8, 11, 0.6);
  border: 1px solid var(--line);
  color: var(--ice);
}
.cd-feature-icon svg { width: 56%; height: 56%; }
.cd-feature h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}
.cd-feature p { margin: 0; color: var(--muted); font-size: 0.92rem; line-height: 1.6; }

.cd-gallery {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  grid-template-rows: minmax(240px, 28vw) minmax(240px, 28vw);
  gap: 14px;
}
.cd-gallery figure {
  position: relative;
  margin: 0;
  min-height: 0;
  overflow: hidden;
  border-radius: 20px;
  border: 1px solid var(--line);
}
.cd-gallery figure:first-child { grid-row: 1 / span 2; }
.cd-gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.cd-gallery figcaption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  margin: 0;
  padding: 5px 9px;
  border-radius: 999px;
  background: rgba(7, 8, 11, 0.72);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
}

.cd-ask {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(20px, 4vw, 40px);
  align-items: center;
}

.cd-term {
  border-radius: 22px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(18, 21, 28, 0.92), rgba(10, 12, 16, 0.94));
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.85);
  overflow: hidden;
}
.cd-term-bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  background: rgba(7, 8, 11, 0.55);
}
.cd-term-title {
  margin-left: 6px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--faint);
}
.cd-term-body { padding: 16px 16px 18px; }
.cd-chat-log {
  display: flex; flex-direction: column; gap: 8px;
  min-height: 220px; max-height: 320px; overflow-y: auto;
  margin-bottom: 12px;
}
.cd-chat-msg {
  max-width: 88%; padding: 9px 13px; border-radius: 12px;
  font-family: var(--font-body);
  font-size: 0.92rem; line-height: 1.5; white-space: pre-wrap; word-break: break-word;
}
.cd-chat-ai { align-self: flex-start; background: rgba(18, 21, 28, 0.9); border: 1px solid var(--line); color: var(--ink); }
.cd-chat-user { align-self: flex-end; background: rgba(142, 236, 255, 0.12); border: 1px solid rgba(142, 236, 255, 0.32); color: #d9f6ff; }
.cd-chat-form { display: flex; gap: 8px; }
.cd-chat-form input {
  flex: 1; min-width: 0; padding: 11px 13px; border-radius: 12px;
  background: rgba(7, 8, 11, 0.7); border: 1px solid var(--line); color: var(--ink);
  font-family: var(--font-body); font-size: 0.95rem; outline: none;
}
.cd-chat-form input:focus { border-color: rgba(142, 236, 255, 0.55); box-shadow: 0 0 0 3px rgba(142, 236, 255, 0.12); }
.cd-chat-form button {
  width: 42px; height: 42px; flex-shrink: 0; border-radius: 12px;
  display: grid; place-items: center; cursor: pointer; border: none;
  background: var(--ice); color: #071016;
}
.cd-chat-form button:disabled { opacity: 0.55; cursor: default; }

.cd-langs { display: flex; gap: 4px; flex-shrink: 0; }
.cd-langs button {
  min-width: 34px; height: 34px; padding: 0 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(243, 239, 230, 0.04);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  cursor: pointer;
}
.cd-langs button.is-on { color: var(--ice); border-color: rgba(142, 236, 255, 0.55); }
.cd-menu-wrap { position: relative; }
.ac-menu-panel[hidden] { display: none; }

@media (max-width: 980px) {
  .cd-split, .cd-ask, .cd-steps, .cd-gallery { grid-template-columns: 1fr; }
  .cd-gallery { grid-template-rows: none; }
  .cd-gallery figure { height: 280px; }
  .cd-gallery figure:first-child { grid-row: auto; height: 420px; }
}
@media (max-width: 700px) {
  .cd-feature, .cd-step { padding: 20px; }
  .cd-demo-body { font-size: 0.72rem; }
}