/* ============================================================
   OPTIMUSCLE — Coach IA Styles
   ============================================================ */

/* ===== BOUTON FLOTTANT (FAB) ===== */
.coach-fab {
  position: fixed;
  bottom: calc(var(--bottom-nav-height) + 16px);
  right: 16px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--grad-brand);
  border: none;
  color: white;
  cursor: pointer;
  z-index: 90;
  box-shadow:
    0 8px 24px var(--accent-glow),
    0 0 0 4px rgba(255, 87, 34, 0.1);
  display: grid;
  place-items: center;
  transition: all var(--duration-base) var(--ease-out);
  animation: coachFabPulse 3s ease-in-out infinite;
}

.coach-fab svg {
  width: 28px;
  height: 28px;
}

.coach-fab:hover {
  transform: scale(1.1) rotate(-5deg);
  box-shadow:
    0 12px 32px var(--accent-glow),
    0 0 0 6px rgba(255, 87, 34, 0.15);
}

.coach-fab:active { transform: scale(0.95); }

/* Badge "1" sur le FAB */
.coach-fab-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--neon-bright);
  color: white;
  font-size: 11px;
  font-weight: 800;
  display: grid;
  place-items: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
  border: 2px solid var(--bg);
}

@keyframes coachFabPulse {
  0%, 100% {
    box-shadow:
      0 8px 24px var(--accent-glow),
      0 0 0 4px rgba(255, 87, 34, 0.1);
  }
  50% {
    box-shadow:
      0 8px 32px var(--accent-glow),
      0 0 0 12px rgba(255, 87, 34, 0.05);
  }
}

/* Cacher le FAB sur les pages non-dashboard */
body:not([data-view="dashboard"]) .coach-fab,
body[data-view="dashboard"][data-subpage="workout"] .coach-fab,
body[data-view="dashboard"][data-subpage="coach"] .coach-fab {
  display: none !important;
}

/* ===== MODAL COACH (chat fullscreen) ===== */
.coach-modal {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 1000;
  display: none;
  flex-direction: column;
  animation: slideUpFull 300ms var(--ease-out);
}

.coach-modal.show {
  display: flex;
}

@keyframes slideUpFull {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

/* ===== HEADER COACH ===== */
.coach-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev-1);
  flex-shrink: 0;
}

.coach-header-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--grad-brand);
  display: grid;
  place-items: center;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 4px 12px var(--accent-glow);
  position: relative;
}

.coach-header-avatar svg {
  width: 22px;
  height: 22px;
}

.coach-header-avatar::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12px;
  height: 12px;
  background: var(--neon-bright);
  border-radius: 50%;
  border: 2px solid var(--bg-elev-1);
}

.coach-header-info {
  flex: 1;
  min-width: 0;
}

.coach-header-name {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.02em;
}

.coach-header-status {
  font-size: 11px;
  color: var(--neon-bright);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.coach-header-close {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--text);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--duration-fast);
  flex-shrink: 0;
}

.coach-header-close:hover {
  background: var(--bg-elev-3);
  transform: rotate(90deg);
}

.coach-header-close svg {
  width: 20px;
  height: 20px;
}

/* ===== MESSAGES LIST ===== */
.coach-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}

.coach-messages::-webkit-scrollbar { width: 6px; }
.coach-messages::-webkit-scrollbar-track { background: transparent; }
.coach-messages::-webkit-scrollbar-thumb {
  background: var(--border-light);
  border-radius: 3px;
}

/* ===== MESSAGES BUBBLES ===== */
.coach-msg {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  max-width: 85%;
  animation: msgFadeIn 300ms var(--ease-out);
}

@keyframes msgFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.coach-msg-user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.coach-msg-assistant {
  align-self: flex-start;
}

.coach-msg-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--grad-brand);
  display: grid;
  place-items: center;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 2px 8px var(--accent-glow);
}

.coach-msg-avatar svg {
  width: 16px;
  height: 16px;
}

.coach-msg-bubble {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 12px 16px;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--text);
  word-wrap: break-word;
}

.coach-msg-user .coach-msg-bubble {
  background: var(--grad-brand);
  color: white;
  border: none;
  border-bottom-right-radius: var(--radius-xs);
}

.coach-msg-assistant .coach-msg-bubble {
  border-bottom-left-radius: var(--radius-xs);
}

.coach-msg-bubble strong {
  font-weight: 700;
}

/* ===== TYPING INDICATOR ===== */
.coach-typing .coach-msg-bubble {
  padding: 14px 18px;
}

.coach-typing-dots {
  display: flex;
  gap: 4px;
}

.coach-typing-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
  animation: typingBounce 1.4s infinite ease-in-out both;
}

.coach-typing-dots span:nth-child(1) { animation-delay: -0.32s; }
.coach-typing-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typingBounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
  40% { transform: scale(1); opacity: 1; }
}

/* ===== STARTER QUESTIONS ===== */
.coach-starters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  background: var(--bg-elev-1);
}

.coach-starter {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  color: var(--text-soft);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast);
  font-family: inherit;
}

.coach-starter:hover {
  background: var(--bg-elev-3);
  border-color: var(--accent);
  color: var(--text);
  transform: translateY(-1px);
}

.coach-starter-icon {
  font-size: 14px;
}

/* ===== INPUT FORM ===== */
.coach-form {
  display: flex;
  gap: 8px;
  padding: 12px 16px max(12px, env(safe-area-inset-bottom));
  background: var(--bg-elev-1);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.coach-input {
  flex: 1;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  padding: 12px 18px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color var(--duration-fast);
  min-width: 0;
}

.coach-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow-soft);
}

.coach-input::placeholder {
  color: var(--text-dimmer);
}

.coach-send {
  background: var(--grad-brand);
  border: none;
  color: white;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  cursor: pointer;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  transition: all var(--duration-fast);
  box-shadow: 0 4px 12px var(--accent-glow);
}

.coach-send svg {
  width: 20px;
  height: 20px;
}

.coach-send:hover {
  transform: scale(1.05);
}

.coach-send:active {
  transform: scale(0.95);
}

.coach-send:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ===== RESPONSIVE TABLETTE+ ===== */
@media (min-width: 768px) {
  .coach-modal {
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
  }

  .coach-modal-inner {
    width: 100%;
    max-width: 600px;
    height: 80vh;
    max-height: 800px;
    background: var(--bg);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
  }

  .coach-fab {
    bottom: 24px;
    right: 24px;
  }
}

/* ===== ONGLET COACH DANS LE DASHBOARD (optionnel) ===== */
.subpage#subpage-coach {
  display: none;
}

body[data-view="dashboard"][data-subpage="coach"] #subpage-coach {
  display: block !important;
}

/* Si on a une page coach dédiée (pas modal), on adapte */
#page-coach .coach-page-wrap {
  height: calc(100vh - var(--header-height) - var(--bottom-nav-height));
  display: flex;
  flex-direction: column;
  margin: 0;
}