.ia-coach-container {
  width: min(100%, 1200px);
  margin: 0 auto 40px;
}

.ia-coach-container .nav-item { text-decoration: none; }
.ia-grid {
  display: grid;
  grid-template-columns: 400px minmax(0, 1fr);
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.ia-grid > div:first-child { display: flex; flex-direction: column; gap: 1.2rem; }
.ia-card {
  min-width: 0;
  padding: 1.2rem;
  border: 1px solid rgba(255, 255, 255, .08);
  border-radius: 18px;
  background: rgba(20, 26, 38, .85);
  backdrop-filter: blur(16px);
}
.ia-input {
  box-sizing: border-box;
  width: 100%;
  padding: .8rem 1rem;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 12px;
  outline: none;
  color: #fff;
  background: rgba(11, 14, 20, .9);
  font-size: .9rem;
}
.ia-input:focus { border-color: #72e5ff; }
.ia-input option { color: #fff; background: #0b0e14; }
.ia-btn-primary, .ia-btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  width: 100%;
  padding: .8rem 1rem;
  border-radius: 12px;
  font-weight: 700;
  cursor: pointer;
}
.ia-btn-primary {
  border: 0;
  color: #020617;
  background: #72e5ff;
  transition: box-shadow .2s ease;
}
.ia-btn-primary:hover { box-shadow: 0 0 15px rgba(114, 229, 255, .45); }
.ia-btn-secondary {
  border: 1px solid rgba(0, 229, 255, .3);
  color: #00e5ff;
  background: rgba(0, 229, 255, .1);
}
.upload-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
  border: 2px dashed rgba(255, 255, 255, .15);
  border-radius: 14px;
  background: rgba(11, 14, 20, .4);
  text-align: center;
  cursor: pointer;
  transition: border-color .2s ease, background .2s ease;
}
.upload-dropzone:hover { border-color: #72e5ff; background: rgba(114, 229, 255, .05); }
.chat-messages-container {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: .9rem;
  max-height: 480px;
  overflow-y: auto;
  padding: 1rem 0;
}
.chat-msg {
  max-width: 85%;
  padding: .8rem 1rem;
  border-radius: 14px;
  font-size: .9rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
}
.ai-msg { align-self: flex-start; border: 1px solid rgba(0, 229, 255, .2); color: #e2e8f0; background: rgba(25, 35, 52, .9); }
.user-msg { align-self: flex-end; color: #06131a; background: #72e5ff; font-weight: 600; }
.msg-author { margin-bottom: .3rem; color: #00e5ff; font-size: .75rem; font-weight: 700; }
.user-msg .msg-author { color: #020617; opacity: .8; }
.quick-prompts-bar { display: flex; gap: .5rem; overflow-x: auto; padding: .6rem 0; }
.quick-btn {
  flex: 0 0 auto;
  padding: .4rem .8rem;
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 20px;
  color: #cbd5e1;
  background: rgba(255, 255, 255, .05);
  font-size: .8rem;
  white-space: nowrap;
  cursor: pointer;
}
.quick-btn:hover { border-color: #72e5ff; color: #72e5ff; }
.chat-input-row { display: flex; gap: .6rem; margin-top: .5rem; }
@media (max-width: 992px) {
  .ia-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 720px) {
  .ia-coach-container { margin-bottom: 0; }
  .ia-card { padding: 1rem; }
  .ia-grid { gap: 1rem; }
  .chat-messages-container { min-height: 220px; }
}