/**
 * public/css/coach-room.css
 *
 * Page-specific styles for /studio/coach/:crew — the persistent 1:1
 * room view. Composes chat.css tokens (.pb-msg, .pb-typing,
 * .pb-chat-input-area, .pb-chat-input-row, etc.) so we don't invent
 * a parallel visual language. Page layout, header card, sticky
 * input, safe-area padding, last-session banner, and quick-reply
 * chips live here.
 */

:root {
  --coach-bg: #0a0a0f;
  --coach-bg-2: #111118;
  --coach-card: #13131c;
  --coach-border: #1e1e2e;
  --coach-fg: #f0f0f0;
  --coach-muted: #8888a0;
  --coach-font-display: 'Syne', sans-serif;
  --coach-font-body: 'Space Grotesk', sans-serif;
}

/* Per-crew accent overrides — gradient + soft glow on header. */
.coach-room--kai    { --coach-accent: #ef4444; --coach-accent-2: #c847f4; --coach-glow: rgba(239,68,68,0.18); }
.coach-room--luna   { --coach-accent: #4ecaff; --coach-accent-2: #67e8f9; --coach-glow: rgba(78,202,255,0.18); }
.coach-room--nia    { --coach-accent: #22c55e; --coach-accent-2: #4ecaff; --coach-glow: rgba(34,197,94,0.18); }
.coach-room--cole   { --coach-accent: #fb923c; --coach-accent-2: #fbbf24; --coach-glow: rgba(251,146,60,0.18); }
.coach-room--nova   { --coach-accent: #a78bfa; --coach-accent-2: #c4b5fd; --coach-glow: rgba(167,139,250,0.20); }

* { box-sizing: border-box; margin: 0; padding: 0; }
body.coach-room { background: var(--coach-bg); color: var(--coach-fg); font-family: var(--coach-font-body); min-height: 100vh; }

/* ── Page nav (mirrors studio-mix-room.ejs) ────────────────────── */
.page-layout { display: flex; min-height: 100vh; }
.page-main { flex: 1; display: flex; flex-direction: column; }

.page-nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 40px; border-bottom: 1px solid var(--coach-border);
  max-width: 760px; width: 100%; margin: 0 auto; gap: 16px; flex-wrap: wrap;
}
.nav-brand {
  font-family: var(--coach-font-display); font-size: 1.2rem; font-weight: 800;
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  background-image: linear-gradient(135deg, var(--coach-accent), var(--coach-accent-2));
  text-decoration: none;
}
.nav-links { display: flex; gap: 20px; align-items: center; }
.nav-link { font-size: 0.82rem; font-weight: 500; color: var(--coach-muted); text-decoration: none; transition: color 0.2s; }
.nav-link:hover { color: var(--coach-fg); }
.nav-link.active { color: var(--coach-accent); }
.nav-hamburger { display: none; background: none; border: none; cursor: pointer; padding: 6px; color: var(--coach-muted); font-size: 1.4rem; line-height: 1; }
@media (max-width: 700px) {
  .page-nav { padding: 20px 24px; }
  .nav-hamburger { display: block; }
  .nav-links { display: none; flex-direction: column; align-items: flex-start; width: 100%; gap: 12px; padding: 16px 0 8px; border-top: 1px solid var(--coach-border); }
  .nav-links.mobile-open { display: flex; }
}

/* ── Coach wrap (full-page conversation) ─────────────────────── */
.coach-wrap {
  max-width: 720px; width: 100%; margin: 0 auto;
  padding: 32px 40px 0;
  display: flex; flex-direction: column;
  flex: 1; min-height: 0;
}

.back-to-studio-link {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.75rem; font-weight: 600; color: var(--coach-muted);
  text-decoration: none; margin-bottom: 18px; transition: color 0.2s;
}
.back-to-studio-link:hover { color: var(--coach-fg); }

/* ── Crew header card ─────────────────────────────────────────── */
.coach-header {
  display: flex; align-items: center; gap: 18px;
  padding: 20px 22px;
  background: var(--coach-glow);
  border: 1px solid color-mix(in srgb, var(--coach-accent) 25%, transparent);
  border-radius: 18px;
  margin-bottom: 16px;
}
.coach-avatar-lg {
  width: 64px; height: 64px; border-radius: 50%;
  flex-shrink: 0; overflow: hidden;
  background: linear-gradient(135deg, var(--coach-accent), var(--coach-accent-2));
  display: flex; align-items: center; justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 18px var(--coach-glow);
}
.coach-avatar-lg .crew-avatar-svg, .coach-avatar-lg .crew-avatar-img { width: 100%; height: 100%; display: block; }
.coach-avatar-lg .crew-avatar-img { object-fit: cover; object-position: center 30%; border-radius: 50%; }
.coach-header-meta { flex: 1; min-width: 0; }
.coach-header-role {
  font-size: 0.65rem; letter-spacing: 0.14em; text-transform: uppercase;
  font-weight: 700; color: var(--coach-muted); margin-bottom: 2px;
}
.coach-header-name {
  font-family: var(--coach-font-display); font-size: 1.4rem; font-weight: 800;
  letter-spacing: -0.02em; background: linear-gradient(135deg, var(--coach-accent), var(--coach-accent-2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.coach-header-tagline { font-size: 0.85rem; color: var(--coach-muted); margin-top: 4px; line-height: 1.4; }

.coach-tool-link {
  flex-shrink: 0;
  padding: 8px 14px; border-radius: 100px;
  border: 1px solid var(--coach-border); background: var(--coach-card);
  color: var(--coach-fg); font-size: 0.78rem; font-weight: 600;
  text-decoration: none; transition: border-color 0.2s, background 0.2s;
  display: none;
}
@media (min-width: 600px) { .coach-tool-link { display: inline-flex; } }
.coach-tool-link:hover {
  border-color: var(--coach-accent);
  background: color-mix(in srgb, var(--coach-accent) 10%, transparent);
}

/* ── Last-session recap banner ────────────────────────────────── */
.last-session-banner {
  display: flex; flex-direction: column; gap: 4px;
  padding: 12px 16px; border-radius: 12px;
  background: var(--coach-glow);
  border: 1px solid color-mix(in srgb, var(--coach-accent) 22%, transparent);
  margin-bottom: 12px;
}
.last-session-label {
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--coach-accent);
}
.last-session-text {
  font-size: 0.92rem; color: var(--coach-fg); line-height: 1.5;
}
.last-session-time {
  font-size: 0.7rem; color: var(--coach-muted); margin-top: 2px;
}

/* ── Message scroll area ─────────────────────────────────────── */
.coach-scroll {
  flex: 1; min-height: 0;
  overflow-y: auto;
  padding: 8px 0 16px;
  display: flex; flex-direction: column; gap: 14px;
  scroll-behavior: smooth;
}
.coach-scroll::-webkit-scrollbar { width: 4px; }
.coach-scroll::-webkit-scrollbar-track { background: transparent; }
.coach-scroll::-webkit-scrollbar-thumb { background: #2a2a3a; border-radius: 2px; }

/* ── Quick replies (rendered INSIDE the scroll, per spec) ────── */
.coach-quick-replies {
  display: flex; flex-wrap: wrap; gap: 8px;
  align-self: flex-start;
  margin-top: 6px;
}
.coach-qr-chip {
  font-family: var(--coach-font-body);
  font-size: 0.75rem; font-weight: 500;
  padding: 7px 14px; border-radius: 100px;
  border: 1px solid color-mix(in srgb, var(--coach-accent) 35%, transparent);
  background: color-mix(in srgb, var(--coach-accent) 10%, transparent);
  color: var(--coach-accent);
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  white-space: nowrap;
}
.coach-qr-chip:hover {
  background: color-mix(in srgb, var(--coach-accent) 20%, transparent);
  border-color: color-mix(in srgb, var(--coach-accent) 60%, transparent);
  transform: translateY(-1px);
}
.coach-qr-chip:active { transform: translateY(0); }

/* ── Overrides on the chat.css message bubbles ──────────────── */
.coach-scroll .pb-msg-bubble { color: var(--coach-fg); }
.coach-scroll .pb-msg-user .pb-msg-bubble {
  background: linear-gradient(135deg,
    color-mix(in srgb, var(--coach-accent) 28%, transparent),
    color-mix(in srgb, var(--coach-accent-2) 14%, transparent));
  border: 1px solid color-mix(in srgb, var(--coach-accent) 35%, transparent);
}
.coach-scroll .pb-msg-assistant .pb-msg-bubble {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
}
.coach-greeting-msg .pb-msg-bubble {
  background: var(--coach-glow) !important;
  border-color: color-mix(in srgb, var(--coach-accent) 28%, transparent) !important;
}

/* ── Error banner (sits between scroll and input) ────────────── */
.coach-error {
  display: none;
  margin: 8px 0 0;
  padding: 10px 16px;
  background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.25);
  border-radius: 10px;
  font-size: 0.82rem; color: #f87171;
}
.coach-error.visible { display: block; }

/* ── Input area (sticky, with safe-area padding) ─────────────── */
.coach-input-area {
  position: sticky; bottom: 0;
  padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  background: linear-gradient(to top, var(--coach-bg) 80%, transparent);
  border-top: none;
  border-radius: 0;
  margin-top: -2px;
  z-index: 5;
}
.coach-input-area .pb-chat-input-row { background: rgba(255,255,255,0.05); }
.coach-input-area .pb-chat-input-row:focus-within {
  border-color: color-mix(in srgb, var(--coach-accent) 50%, transparent);
}

/* ── Other-rooms chip row at the very bottom ─────────────────── */
.coach-other-rooms {
  padding: 4px 0 18px;
  border-top: 1px solid var(--coach-border);
  margin-top: 4px;
}
.coach-rooms-label {
  font-size: 0.65rem; font-weight: 700; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--coach-muted);
  margin-bottom: 8px;
}
.coach-rooms-row {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.coach-rooms-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: 100px;
  border: 1px solid var(--coach-border); background: var(--coach-card);
  text-decoration: none; color: var(--coach-fg);
  font-size: 0.76rem;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}
.coach-rooms-chip:hover { border-color: var(--coach-accent); transform: translateY(-1px); }
.coach-rooms-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.coach-rooms-name { font-weight: 700; }
.coach-rooms-role { color: var(--coach-muted); font-size: 0.7rem; }

/* ── Mobile breakpoints (375 / 390 / 414) ────────────────────── */
@media (max-width: 414px) {
  .coach-wrap { padding: 24px 18px 0; }
  .coach-header { padding: 14px 16px; gap: 12px; border-radius: 14px; }
  .coach-avatar-lg { width: 48px; height: 48px; }
  .coach-header-name { font-size: 1.2rem; }
  .coach-header-tagline { font-size: 0.78rem; }
  .coach-scroll .pb-msg { max-width: 92%; }
  .coach-scroll .pb-msg-bubble { font-size: 0.84rem; padding: 9px 12px; }
  .coach-input-area { padding: 8px 0; }
  #coachInput { font-size: 0.84rem; }
}

@media (max-width: 375px) {
  .coach-header { flex-wrap: wrap; }
  .coach-tool-link { margin-top: 8px; display: inline-flex; }
  .last-session-banner { padding: 10px 14px; }
  .last-session-text { font-size: 0.86rem; }
}