/* ── COFFEE RAG PAGE (extends main.css) ── */

/* solid nav (page has no hero to scroll past) */
.nav--solid {
  background: rgba(22, 22, 30, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav__back {
  font-family: var(--f-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  color: var(--muted);
  transition: color 0.2s;
}

.nav__back:hover { color: var(--fg); }

/* layout — mobile: stacked; desktop: split */
.coffee {
  min-height: 100dvh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding: calc(var(--nav-h) + 2rem) var(--pad-x) 2rem;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
  gap: 2.5rem;
}

/* info column */
.coffee-info__title {
  font-family: var(--f-display);
  font-weight: 500;
  font-size: clamp(2.25rem, 9vw, 3.75rem);
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin: 1rem 0 1.25rem;
}

.coffee-info__title em {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 500;
  color: var(--accent);
}

.coffee-info__desc {
  font-size: 0.9375rem;
  font-weight: 300;
  color: var(--muted);
  line-height: 1.8;
  max-width: 440px;
  margin-bottom: 2rem;
}

.coffee-info__desc em { color: var(--fg); font-style: italic; }

.coffee-info__block { margin-bottom: 2rem; }
.coffee-info__block .tags { margin-top: 0.875rem; }

.coffee-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.875rem;
}

.coffee-step {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.coffee-step__n {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  color: var(--blue);
  flex-shrink: 0;
}

.coffee-step__t {
  font-size: 0.875rem;
  font-weight: 300;
  color: var(--muted);
  line-height: 1.7;
}

/* chat column */
.coffee-chat {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-subtle);
  overflow: hidden;
  min-height: 480px;
  flex: 1;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.chat-bubble {
  max-width: 88%;
  padding: 0.875rem 1.125rem;
  border-radius: 10px;
  font-size: 0.9063rem;
  font-weight: 300;
  line-height: 1.7;
}

.chat-bubble--bot {
  align-self: flex-start;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--fg);
  border-bottom-left-radius: 3px;
}

.chat-bubble--bot em { color: var(--accent); }

.chat-bubble--user {
  align-self: flex-end;
  background: rgba(122, 162, 247, 0.1);
  border: 1px solid rgba(122, 162, 247, 0.3);
  color: var(--fg);
  border-bottom-right-radius: 3px;
}

.chat-bubble__note {
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.chat-source {
  display: block;
  margin-top: 0.625rem;
  font-family: var(--f-mono);
  font-size: 0.625rem;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.chat-source:empty { display: none; }

/* typing indicator */
.chat-bubble--typing p {
  display: flex;
  gap: 5px;
  align-items: center;
  height: 1em;
}

.typing-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--muted);
  animation: typing 1.2s ease-in-out infinite;
}

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

@keyframes typing {
  0%, 60%, 100% { opacity: 0.25; transform: translateY(0); }
  30%           { opacity: 1;    transform: translateY(-3px); }
}

/* suggestions */
.chat-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0 1.25rem 0.875rem;
}

.suggestion {
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 0.45em 0.95em;
  cursor: pointer;
  text-align: left;
  transition: color 0.2s, border-color 0.2s;
}

.suggestion:hover {
  color: var(--accent);
  border-color: rgba(247, 118, 142, 0.45);
}

/* notice */
.chat-notice {
  font-family: var(--f-mono);
  font-size: 0.625rem;
  letter-spacing: 0.03em;
  color: #6B6B6B;
  padding: 0 1.25rem 0.75rem;
}

/* input */
.chat-form {
  display: flex;
  gap: 0.625rem;
  padding: 0.875rem 1.25rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.chat-input {
  flex: 1;
  font-family: var(--f-body);
  font-size: 0.9375rem;
  font-weight: 300;
  color: var(--fg);
  background: transparent;
  border: none;
  padding: 0.5rem 0;
  min-width: 0;
}

.chat-input::placeholder { color: #4A4A4A; }
.chat-input:focus { outline: none; }
.chat-input:disabled { opacity: 0.4; }

.chat-send {
  font-family: var(--f-mono);
  font-size: 1rem;
  color: var(--bg);
  background: var(--blue);
  border: none;
  border-radius: 100px;
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.2s;
}

.chat-send:hover { transform: translate(1px, -1px); }
.chat-send:disabled { opacity: 0.35; cursor: default; transform: none; }

/* ── ≥900px: side-by-side ── */
@media (min-width: 900px) {
  .coffee {
    flex-direction: row;
    align-items: stretch;
    gap: 4rem;
    padding-top: calc(var(--nav-h) + 3.5rem);
    padding-bottom: 3rem;
  }

  .coffee-info {
    flex: 0 0 42%;
    align-self: center;
  }

  .coffee-chat {
    flex: 1;
    min-height: 0;
    max-height: calc(100dvh - var(--nav-h) - 6.5rem);
  }
}