/* ============================================
   TALKING PHILOSOPHERS — PANEL STYLES
   Drawer panel, selector strip, hover-to-read
   ============================================ */

/* ---- PHILOSOPHER PANEL (right-side drawer) ---- */
.philosopher-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(420px, 100vw);
  background: var(--color-surface);
  border-left: 1px solid var(--color-border);
  box-shadow: -8px 0 48px rgba(26,24,18,0.16);
  z-index: 900;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 320ms cubic-bezier(0.16, 1, 0.3, 1);
  /* Per-philosopher accent color injected via JS */
  --phil-color: var(--color-accent);
}

.philosopher-panel.open {
  transform: translateX(0);
}

.phil-panel-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
}

/* ---- HEADER ---- */
.phil-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  flex-shrink: 0;
}

.phil-portrait-wrap {
  position: relative;
  flex-shrink: 0;
  width: 64px;
  height: 64px;
}

.phil-portrait {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--phil-color);
  display: block;
}

/* Pulsing ring when TTS is speaking */
.phil-speaking-ring {
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 2.5px solid var(--phil-color);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.phil-speaking-ring.active {
  opacity: 1;
  animation: phil-pulse 1.6s ease-in-out infinite;
}

@keyframes phil-pulse {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50%       { transform: scale(1.12); opacity: 0.3; }
}

.phil-identity {
  flex: 1;
  min-width: 0;
}

.phil-name {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--phil-color);
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.phil-era {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
  letter-spacing: 0.04em;
}

.phil-status {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-2);
  font-style: italic;
  min-height: 1.2em;
  transition: color var(--transition);
}

.phil-close {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition);
  padding: 0;
}

.phil-close:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

/* ---- TRANSCRIPT ---- */
.phil-transcript {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  scroll-behavior: smooth;
}

/* Thin scrollbar */
.phil-transcript::-webkit-scrollbar { width: 4px; }
.phil-transcript::-webkit-scrollbar-track { background: transparent; }
.phil-transcript::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 2px; }

.phil-transcript-placeholder {
  color: var(--color-text-faint);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-style: italic;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  line-height: 1.65;
}

/* Message bubbles */
.phil-msg {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  animation: phil-msg-in 200ms ease-out both;
}

@keyframes phil-msg-in {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.phil-msg-user {
  align-items: flex-end;
}

.phil-msg-philosopher {
  align-items: flex-start;
}

.phil-msg-label {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.phil-msg-philosopher .phil-msg-label {
  color: var(--phil-color);
  opacity: 0.85;
}

.phil-msg-text {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  max-width: 92%;
}

.phil-msg-user .phil-msg-text {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-bottom-right-radius: var(--radius-sm);
}

.phil-msg-philosopher .phil-msg-text {
  /* Fallback for older browsers without color-mix */
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--phil-color) 8%, var(--color-surface));
  border: 1px solid color-mix(in srgb, var(--phil-color) 20%, var(--color-border));
  border-bottom-left-radius: var(--radius-sm);
}

.phil-msg-error {
  background: var(--color-unresolved-bg, #f2e8e8) !important;
  border: 1px solid color-mix(in srgb, var(--color-unresolved, #8b2020) 30%, var(--color-border)) !important;
  color: var(--color-unresolved, #8b2020) !important;
  font-size: var(--text-xs) !important;
}

/* ---- API GATE ---- */
.phil-api-gate {
  padding: var(--space-5);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  flex-shrink: 0;
}

.phil-api-gate > p:first-child {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: var(--space-3);
  line-height: 1.6;
}

.phil-api-input-row {
  display: flex;
  gap: var(--space-2);
}

.phil-api-input {
  flex: 1;
  min-width: 0;
  height: 38px;
  padding: 0 var(--space-3);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition);
  letter-spacing: 0.06em;
}

.phil-api-input:focus {
  border-color: var(--phil-color);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--phil-color) 18%, transparent);
}

.phil-api-btn {
  height: 38px;
  padding: 0 var(--space-4);
  background: var(--phil-color);
  color: var(--color-text-inverse, #fff);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-ui);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), transform var(--transition);
}

.phil-api-btn:hover {
  filter: brightness(1.12);
  transform: translateY(-1px);
}

.phil-api-note {
  font-family: var(--font-ui);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-3);
  line-height: 1.55;
  font-style: italic;
}

/* ---- CONTROLS (input row) ---- */
.phil-controls {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.phil-input-row {
  display: flex;
  gap: var(--space-2);
  align-items: flex-end;
}

.phil-textarea {
  flex: 1;
  min-width: 0;
  resize: none;
  min-height: 44px;
  max-height: 120px;
  padding: var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  line-height: 1.55;
  transition: border-color var(--transition);
  field-sizing: content; /* modern auto-grow */
}

.phil-textarea:focus {
  border-color: var(--phil-color);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--phil-color) 15%, transparent);
}

.phil-btn-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

/* Shared icon button base */
.phil-send-btn,
.phil-mic-btn,
.phil-stop-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  padding: 0;
  flex-shrink: 0;
}

.phil-send-btn {
  background: var(--phil-color);
  border-color: var(--phil-color);
  color: #fff;
}

.phil-send-btn:hover {
  filter: brightness(1.1);
}

.phil-send-btn:disabled {
  opacity: 0.45;
  cursor: default;
}

.phil-mic-btn:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
  border-color: var(--phil-color);
}

.phil-mic-btn.recording {
  background: #c0392b;
  border-color: #c0392b;
  color: #fff;
  animation: mic-pulse 1.1s ease-in-out infinite;
}

@keyframes mic-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(192, 57, 43, 0.4); }
  60%       { box-shadow: 0 0 0 5px rgba(192, 57, 43, 0); }
}

.phil-stop-btn {
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.phil-stop-btn:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

/* ---- SELECTOR STRIP ---- */
.phil-selector {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  z-index: 800;
  box-shadow: 0 -4px 20px rgba(26,24,18,0.07);
  transition: transform 320ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* When panel is open, selector moves up slightly on mobile — handled via JS .has-panel class */
/* On desktop, strip stays at bottom regardless */

.phil-sel-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--color-text-muted);
  font-family: var(--font-ui);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.phil-sel-btn:hover {
  background: var(--color-surface-2);
  border-color: var(--color-border);
  color: var(--color-text);
}

.phil-sel-btn.active {
  background: var(--color-accent-highlight);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.phil-sel-portrait {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid transparent;
  transition: border-color var(--transition), transform var(--transition);
  display: block;
}

.phil-sel-btn:hover .phil-sel-portrait {
  transform: scale(1.06);
  border-color: var(--color-border);
}

.phil-sel-btn.active .phil-sel-portrait {
  border-color: var(--color-accent);
  transform: scale(1.08);
}

/* ---- HOVER-TO-READ ---- */
/* Readable paragraphs / blockquotes — subtle highlight on hover */
.readable-text {
  position: relative;
  cursor: default;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.readable-text:hover {
  background: color-mix(in srgb, var(--color-accent) 6%, transparent);
}

/* Read-aloud trigger button — appears on hover */
.read-aloud-btn {
  position: absolute;
  top: 2px;
  right: -4px;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.85);
  transition: opacity 150ms ease, transform 150ms ease, background var(--transition);
  z-index: 10;
  padding: 0;
  box-shadow: var(--shadow-sm);
}

.readable-text:hover .read-aloud-btn {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1);
}

.read-aloud-btn:hover {
  background: var(--color-accent-highlight);
  border-color: var(--color-accent);
}

/* ---- BODY PADDING ---- */
/* Prevent selector strip from covering bottom content */
body {
  padding-bottom: 80px;
}

/* ---- REPOSITION FLOATING TOOLBAR: move to left side ---- */
/* Avoids conflict with timeline nav overflow on the right */
.floating-toolbar {
  bottom: calc(80px + var(--space-4)) !important;
  right: auto !important;
  left: var(--space-6) !important;
}

@media (max-width: 640px) {
  .floating-toolbar {
    bottom: calc(72px + var(--space-3)) !important;
    left: var(--space-4) !important;
  }
}

/* ---- MISSING TOKEN FALLBACK ---- */
/* --color-error not in main style.css; define it here */
:root, [data-theme='light'] {
  --color-error: #8b2020;
}
[data-theme='dark'] {
  --color-error: #d47070;
}

/* ---- DARK MODE ADJUSTMENTS ---- */
[data-theme='dark'] .phil-msg-philosopher .phil-msg-text {
  background: color-mix(in srgb, var(--phil-color) 12%, var(--color-surface));
  border-color: color-mix(in srgb, var(--phil-color) 25%, var(--color-border));
}

[data-theme='dark'] .phil-transcript-placeholder {
  color: var(--color-text-faint);
}

[data-theme='dark'] .phil-selector {
  background: var(--color-surface);
  border-top-color: var(--color-border);
}

[data-theme='dark'] .philosopher-panel {
  box-shadow: -8px 0 48px rgba(0,0,0,0.4);
}

/* ---- MOBILE RESPONSIVE ---- */
@media (max-width: 640px) {
  .philosopher-panel {
    width: 100vw;
    border-left: none;
  }

  .phil-sel-btn span {
    display: none; /* portrait-only on very small */
  }

  .phil-sel-portrait {
    width: 36px;
    height: 36px;
  }

  .phil-selector {
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
  }
}

/* ---- REDUCED MOTION ---- */
@media (prefers-reduced-motion: reduce) {
  .phil-speaking-ring.active,
  .phil-mic-btn.recording {
    animation: none;
  }
  .philosopher-panel,
  .phil-sel-btn,
  .phil-sel-portrait,
  .read-aloud-btn {
    transition: none;
  }
}