/* ═══════════════════════════════════════════════════
   PPT Assistant — Rich Chat UI
   Google Font: Sora (loaded via PHP widget)
═══════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700&display=swap');

:root {
  --ppt-primary:       #D93025;
  --ppt-primary-dark:  #A50E0E;
  --ppt-primary-light: #FF5449;
  --ppt-accent:        #FF8C00;
  --ppt-bg:            #FFFFFF;
  --ppt-surface:       #F9FAFB;
  --ppt-surface2:      #F1F3F5;
  --ppt-border:        #E5E7EB;
  --ppt-text:          #111827;
  --ppt-text-mid:      #374151;
  --ppt-text-muted:    #6B7280;
  --ppt-user-bg:       var(--ppt-primary);
  --ppt-bot-bg:        #F1F3F5;
  --ppt-shadow-sm:     0 1px 4px rgba(0,0,0,.07);
  --ppt-shadow:        0 4px 24px rgba(0,0,0,.10);
  --ppt-shadow-lg:     0 8px 40px rgba(0,0,0,.14);
  --ppt-radius:        18px;
  --ppt-font:          'Sora', system-ui, sans-serif;
}

/* ── Container ─────────────────────────────────── */
.ppt-embed {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  border: 1px solid var(--ppt-border);
  border-radius: var(--ppt-radius);
  overflow: hidden;
  box-shadow: var(--ppt-shadow);
  font-family: var(--ppt-font);
  font-size: 14px;
  background: var(--ppt-bg);
  color: var(--ppt-text);
}

/* ── Header ────────────────────────────────────── */
.ppt-embed__header {
  background: linear-gradient(135deg, var(--ppt-primary) 0%, var(--ppt-primary-dark) 100%);
  padding: 0 20px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

/* decorative diagonal stripe */
.ppt-embed__header::after {
  content: '';
  position: absolute;
  right: -30px; top: -30px;
  width: 140px; height: 140px;
  background: rgba(255,255,255,.06);
  border-radius: 50%;
  pointer-events: none;
}

.ppt-embed__header-info { display: flex; align-items: center; gap: 12px; position: relative; z-index: 1; }

.ppt-embed__avatar {
  width: 42px; height: 42px;
  background: rgba(255,255,255,.18);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(255,255,255,.25);
}

.ppt-embed__title {
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -.01em;
}

.ppt-embed__status {
  color: rgba(255,255,255,.75);
  font-size: 11px;
  display: flex; align-items: center; gap: 5px;
  margin-top: 2px;
}

.ppt-status-dot {
  width: 6px; height: 6px;
  background: #4ADE80;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(74,222,128,.3);
  animation: ppt-blink 2.8s infinite;
}

@keyframes ppt-blink {
  0%,100% { opacity: 1; }
  50%      { opacity: .4; }
}

.ppt-embed__clear {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  cursor: pointer;
  border-radius: 9px;
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s;
  position: relative; z-index: 1;
}
.ppt-embed__clear:hover { background: rgba(255,255,255,.25); }

/* ── Messages ──────────────────────────────────── */
.ppt-embed__messages {
  flex: 1;
  overflow-y: auto;
  padding: 20px 18px 12px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  scroll-behavior: smooth;
  background: var(--ppt-bg);
}

.ppt-embed__messages::-webkit-scrollbar { width: 4px; }
.ppt-embed__messages::-webkit-scrollbar-track { background: transparent; }
.ppt-embed__messages::-webkit-scrollbar-thumb { background: #D1D5DB; border-radius: 4px; }

/* Row */
.ppt-msg {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  animation: ppt-in .22s cubic-bezier(.22,1,.36,1) both;
}

@keyframes ppt-in {
  from { opacity: 0; transform: translateY(8px) scale(.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.ppt-msg--user { flex-direction: row-reverse; }

/* Bot avatar dot */
.ppt-msg__dot {
  width: 28px; height: 28px;
  background: linear-gradient(135deg, var(--ppt-primary-light), var(--ppt-primary-dark));
  border-radius: 9px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-bottom: 2px;
}
.ppt-msg--user .ppt-msg__dot { display: none; }

/* Bubble */
.ppt-msg__bubble {
  max-width: 78%;
  padding: 11px 15px;
  border-radius: 18px;
  line-height: 1.6;
  font-size: 13.5px;
  font-weight: 400;
}

.ppt-msg--bot .ppt-msg__bubble {
  background: var(--ppt-bot-bg);
  color: var(--ppt-text);
  border-bottom-left-radius: 5px;
}

.ppt-msg--user .ppt-msg__bubble {
  background: var(--ppt-user-bg);
  color: #fff;
  border-bottom-right-radius: 5px;
  font-weight: 500;
}

.ppt-msg__bubble p          { margin: 0 0 7px; }
.ppt-msg__bubble p:last-child { margin: 0; }
.ppt-msg__bubble strong     { font-weight: 600; }
.ppt-msg__bubble em         { font-style: italic; }

/* Time */
.ppt-msg__time {
  font-size: 10px;
  color: var(--ppt-text-muted);
  flex-shrink: 0;
  padding-bottom: 4px;
  font-weight: 300;
}

/* ── Rich content inside bot bubbles ───────────── */

/* Inline link */
.ppt-link {
  color: var(--ppt-primary);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1.5px solid rgba(217,48,37,.3);
  transition: border-color .15s, color .15s;
  word-break: break-all;
}
.ppt-link:hover { color: var(--ppt-primary-dark); border-color: var(--ppt-primary-dark); }
.ppt-msg--user .ppt-link { color: rgba(255,255,255,.9); border-color: rgba(255,255,255,.4); }

/* Unordered list */
.ppt-msg__bubble ul {
  margin: 6px 0 6px 4px;
  padding: 0;
  list-style: none;
}
.ppt-msg__bubble ul li {
  padding: 3px 0 3px 16px;
  position: relative;
  font-size: 13px;
}
.ppt-msg__bubble ul li::before {
  content: '▸';
  position: absolute; left: 0;
  color: var(--ppt-primary);
  font-size: 11px;
  top: 5px;
}

/* Ordered list */
.ppt-msg__bubble ol {
  margin: 6px 0 6px 18px;
  padding: 0;
}
.ppt-msg__bubble ol li { padding: 2px 0; font-size: 13px; }

/* Horizontal divider */
.ppt-msg__bubble hr {
  border: none;
  border-top: 1px solid var(--ppt-border);
  margin: 10px 0;
}

/* Code inline */
.ppt-msg__bubble code {
  background: rgba(0,0,0,.07);
  padding: 1px 6px;
  border-radius: 5px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 12px;
}

/* ── Product card ───────────────────────────────── */
.ppt-product-card {
  display: flex;
  gap: 12px;
  background: var(--ppt-bg);
  border: 1px solid var(--ppt-border);
  border-radius: 12px;
  overflow: hidden;
  margin: 8px 0 4px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow .2s, transform .2s;
  cursor: pointer;
}
.ppt-product-card:hover {
  box-shadow: var(--ppt-shadow);
  transform: translateY(-2px);
}

.ppt-product-card__thumb {
  width: 90px;
  flex-shrink: 0;
  background: var(--ppt-surface2);
  overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.ppt-product-card__thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.ppt-product-card__thumb-placeholder {
  width: 100%; height: 100%; min-height: 80px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #FEE2E2, #FECACA);
  color: var(--ppt-primary);
  font-size: 28px;
}

.ppt-product-card__body {
  padding: 10px 12px 10px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
}

.ppt-product-card__name {
  font-weight: 600;
  font-size: 13px;
  line-height: 1.3;
  color: var(--ppt-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ppt-product-card__desc {
  font-size: 11.5px;
  color: var(--ppt-text-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ppt-product-card__footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}

.ppt-price {
  font-weight: 700;
  font-size: 13px;
  color: var(--ppt-primary);
}
.ppt-price--sale { color: var(--ppt-accent); }
.ppt-price--original {
  font-weight: 400;
  font-size: 11px;
  color: var(--ppt-text-muted);
  text-decoration: line-through;
}

.ppt-badge-cta {
  font-size: 10.5px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 20px;
  background: var(--ppt-primary);
  color: #fff;
  margin-left: auto;
  white-space: nowrap;
  transition: background .15s;
}
.ppt-product-card:hover .ppt-badge-cta { background: var(--ppt-primary-dark); }

/* ── Product grid (multiple cards) ─────────────── */
.ppt-product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 8px 0 4px;
}
.ppt-product-grid .ppt-product-card {
  flex-direction: column;
  margin: 0;
}
.ppt-product-grid .ppt-product-card__thumb {
  width: 100%; height: 110px;
}
.ppt-product-grid .ppt-product-card__body {
  padding: 8px 10px 10px;
}

/* ── Typing dots ────────────────────────────────── */
.ppt-typing-dots {
  display: flex; gap: 5px; align-items: center; height: 18px; padding: 2px 0;
}
.ppt-typing-dots span {
  width: 7px; height: 7px;
  background: #9CA3AF; border-radius: 50%;
  animation: ppt-typing 1.3s infinite;
}
.ppt-typing-dots span:nth-child(2) { animation-delay: .18s; }
.ppt-typing-dots span:nth-child(3) { animation-delay: .36s; }
@keyframes ppt-typing {
  0%,60%,100% { transform: translateY(0); opacity: .4; }
  30%          { transform: translateY(-6px); opacity: 1; }
}

/* ── Suggestions ────────────────────────────────── */
.ppt-embed__suggestions {
  padding: 8px 14px 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  border-top: 1px solid var(--ppt-border);
  background: var(--ppt-surface);
  flex-shrink: 0;
}

.ppt-suggestion {
  background: var(--ppt-bg);
  border: 1px solid var(--ppt-border);
  border-radius: 20px;
  padding: 5px 13px;
  font-size: 12px;
  font-family: var(--ppt-font);
  font-weight: 500;
  cursor: pointer;
  color: var(--ppt-text-mid);
  transition: all .15s;
  white-space: nowrap;
}
.ppt-suggestion:hover {
  background: var(--ppt-primary);
  color: #fff;
  border-color: var(--ppt-primary);
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(217,48,37,.25);
}

/* ── Input area ─────────────────────────────────── */
.ppt-embed__input-wrap {
  padding: 10px 14px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  border-top: 1px solid var(--ppt-border);
  background: var(--ppt-bg);
  flex-shrink: 0;
}

.ppt-embed__input {
  flex: 1;
  border: 1.5px solid var(--ppt-border);
  border-radius: 22px;
  padding: 10px 16px;
  font-size: 13.5px;
  font-family: var(--ppt-font);
  font-weight: 400;
  resize: none;
  outline: none;
  line-height: 1.45;
  max-height: 110px;
  overflow-y: auto;
  transition: border-color .18s, box-shadow .18s;
  color: var(--ppt-text);
  background: var(--ppt-surface);
}
.ppt-embed__input:focus {
  border-color: var(--ppt-primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(217,48,37,.10);
}
.ppt-embed__input::placeholder { color: #B0B7C3; }

.ppt-embed__send {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--ppt-primary-light), var(--ppt-primary-dark));
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform .18s, box-shadow .18s, opacity .15s;
  box-shadow: 0 3px 12px rgba(217,48,37,.35);
}
.ppt-embed__send:hover   { transform: scale(1.08); box-shadow: 0 5px 18px rgba(217,48,37,.45); }
.ppt-embed__send:active  { transform: scale(.95); }
.ppt-embed__send:disabled { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }

/* ── Footer ─────────────────────────────────────── */
.ppt-embed__footer {
  text-align: center;
  font-size: 10px;
  font-weight: 300;
  letter-spacing: .02em;
  color: var(--ppt-text-muted);
  padding: 6px;
  border-top: 1px solid var(--ppt-border);
  background: var(--ppt-surface);
  flex-shrink: 0;
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 600px) {
  .ppt-embed { border-radius: 12px; }
  .ppt-msg__bubble { max-width: 88%; font-size: 13px; }
  .ppt-product-grid { grid-template-columns: 1fr; }
  .ppt-product-card__thumb { height: 80px; }
  .ppt-embed__suggestions { gap: 5px; }
  .ppt-suggestion { font-size: 11.5px; padding: 4px 11px; }
}