*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Apple Intelligence animated gradient ── */
@property --ai-angle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}
@keyframes ai-spin { to { --ai-angle: 360deg; } }
@keyframes hint-blob-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes siri-orb {
  0%   { background-position: 0% 50%;   transform: scaleX(0.9) scaleY(0.75); opacity: 0.75; }
  50%  { background-position: 100% 50%; transform: scaleX(1.1) scaleY(1.2);  opacity: 1; }
  100% { background-position: 0% 50%;   transform: scaleX(0.9) scaleY(0.75); opacity: 0.75; }
}
@keyframes stream-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes bubblePop {
  from { opacity: 0; transform: translateY(-6px) scale(0.94); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

:root {
  --color-bg: #f2f2f7;
  --color-surface: #ffffff;
  --color-border: rgba(0,0,0,0.07);
  --color-text: #1d1d1f;
  --color-muted: #8e8e93;
  --color-accent-from: #7a00df;
  --color-accent-to: #0693e3;
  --color-confirmed: #1a7a35;
  --color-video-based: #7a4500;
  --radius: 14px;
  --radius-sm: 10px;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', sans-serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Shared Header ── */
.header {
  border-bottom: 1px solid var(--color-border);
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-logo { display: flex; align-items: center; gap: 10px; }
.logo-pill {
  background: linear-gradient(135deg, var(--color-accent-from), var(--color-accent-to));
  border-radius: 8px;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.logo-name { font-size: 15px; font-weight: 700; letter-spacing: -0.3px; color: var(--color-text); }
.logo-name span { color: var(--color-accent-from); }
.header-back {
  font-size: 13px;
  color: var(--color-accent-from);
  text-decoration: none;
  font-weight: 600;
  opacity: 0.85;
  transition: opacity 0.15s;
}
.header-back:hover { opacity: 1; }

/* ── Page Wrapper ── */
.page-wrapper {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px 16px;
}

/* ── Product Header ── */
.product-header { margin-bottom: 20px; }
.product-badge {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-accent-from), var(--color-accent-to));
  color: white;
  font-size: 11px; font-weight: 700;
  letter-spacing: 0.8px; text-transform: uppercase;
  padding: 4px 10px; border-radius: 20px;
  margin-bottom: 10px;
}
.product-title {
  font-size: 22px; font-weight: 700; line-height: 1.3;
  margin-bottom: 4px; letter-spacing: -0.02em;
}
.product-subtitle { font-size: 14px; color: var(--color-muted); }

/* ── Player Shell (overlay host) ── */
.player-shell {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.15);
  background: #000;
  aspect-ratio: 16/9;
}
.player-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
}
#video { width: 100%; height: 100%; display: block; }

/* ── Ask AI Toggle – rainbow ring ── */
.ask-ai-btn {
  position: absolute;
  top: 14px; right: 14px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  color: var(--color-text);
  border: none;
  border-radius: 20px;
  padding: 7px 15px;
  font-size: 13px; font-weight: 500;
  letter-spacing: -0.01em;
  cursor: pointer;
  white-space: nowrap;
  transition: filter 0.2s, transform 0.15s;
  isolation: isolate;
  --ai-angle: 0deg;
}
.ask-ai-btn::before {
  content: '';
  position: absolute; inset: -8px; border-radius: 28px;
  background: conic-gradient(from var(--ai-angle), #bf5af2, #0a84ff, #30d158, #ff9f0a, #ff375f, #bf5af2);
  z-index: -1;
  animation: ai-spin 8s linear infinite;
  filter: blur(10px);
  opacity: 0.85;
}
.ask-ai-btn::after {
  content: '';
  position: absolute; inset: 0; border-radius: 20px;
  background: rgba(255,255,255,0.92);
  z-index: -1;
}
.ask-ai-btn:hover  { filter: brightness(0.96); transform: scale(1.02); }
.ask-ai-btn:active { transform: scale(0.98); }
.ask-ai-btn svg   { width: 13px; height: 13px; }

/* ── Teaser / Hint Bubble ── */
.teaser-bubble {
  position: absolute;
  top: 58px; right: 14px;
  z-index: 150;
  background: rgba(255,255,255,0.93);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-radius: 14px;
  padding: 11px 15px;
  font-size: 13px; font-weight: 500;
  color: var(--color-text);
  letter-spacing: -0.01em;
  cursor: pointer;
  max-width: 220px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.11), 0 1px 4px rgba(0,0,0,0.07);
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  transform: translateY(-6px) scale(0.94);
  transition: opacity 0.45s cubic-bezier(0.34,1.56,0.64,1),
              transform 0.45s cubic-bezier(0.34,1.56,0.64,1);
  pointer-events: none;
  user-select: none;
}
.teaser-bubble.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.teaser-bubble::after {
  content: '';
  position: absolute; inset: -22px; border-radius: 50%;
  background: linear-gradient(120deg, #bf5af2, #0a84ff, #30d158, #ff9f0a, #ff375f, #bf5af2);
  background-size: 300% 300%;
  animation: hint-blob-shift 6s ease-in-out infinite;
  z-index: -1;
  filter: blur(26px);
  opacity: 0.65;
}
.teaser-label {
  display: none;
}
.teaser-sparkle {
  font-size: 14px;
  flex-shrink: 0;
  line-height: 1;
}
.teaser-question {
  font-size: 13px;
  line-height: 1.4;
  color: var(--color-text);
  font-weight: 500;
}

/* ── Overlay — Apple frosted glass slide-in from right ── */
.qa-section {
  position: absolute;
  top: 0; right: 0;
  width: 360px; max-width: 100%;
  height: 100%;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(40px) saturate(200%);
  -webkit-backdrop-filter: blur(40px) saturate(200%);
  display: flex;
  flex-direction: column;
  z-index: 200;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}
.qa-section.open { transform: translateX(0); }

.qa-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
  background: linear-gradient(135deg, rgba(122,0,223,0.05) 0%, rgba(6,147,227,0.05) 100%);
}
.qa-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.qa-title::before {
  content: '✦';
  color: var(--color-accent-from);
  font-size: 14px;
}
.qa-info-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: #d0a0f0;
  font-size: 13px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: color 0.15s, background 0.15s;
  padding: 0;
  margin-left: 4px;
  flex-shrink: 0;
  font-family: inherit;
}
.qa-info-btn:hover { color: var(--color-accent-from); background: rgba(0,0,0,0.05); }
.qa-info-popover {
  display: none;
  position: absolute;
  top: 52px;
  right: 14px;
  left: 14px;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0,0,0,0.09);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 11.5px;
  line-height: 1.5;
  color: #3c3c43;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  z-index: 300;
  animation: fadeIn 0.18s ease;
}
.qa-info-popover.visible { display: block; }
.qa-info-popover strong { color: var(--color-text); }
.qa-close {
  background: rgba(0,0,0,0.06);
  border: none;
  color: #3c3c43;
  cursor: pointer;
  font-size: 14px;
  width: 26px; height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s;
  padding: 0;
  line-height: 1;
}
.qa-close:hover { background: rgba(0,0,0,0.12); }

/* ── Tabs ── */
.ai-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.ai-tab {
  flex: 1;
  padding: 10px 16px;
  background: none;
  border: none;
  color: var(--color-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
  font-family: inherit;
}
.ai-tab.active {
  color: var(--color-accent-from);
  border-bottom-color: var(--color-accent-from);
}
.ai-tab:hover { color: var(--color-text); }
.ai-tab.active:hover { color: var(--color-accent-from); }

/* ── Tab content panels ── */
.topics-tab, .chat-tab {
  display: none;
  flex: 1;
  min-height: 0;
}
.topics-tab.active {
  display: block;
  overflow-y: auto;
}
.chat-tab.active {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Scrollable content ── */
.ai-content {
  scrollbar-width: thin;
  scrollbar-color: rgba(0,0,0,0.15) transparent;
  padding: 12px 14px;
}
.ai-content::-webkit-scrollbar { width: 4px; }
.ai-content::-webkit-scrollbar-track { background: transparent; }
.ai-content::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.15); border-radius: 2px; }

/* ── Topic cards ── */
.topic-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 11px 13px;
  margin-bottom: 7px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.topic-card:hover {
  background: #f9f9fb;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.topic-card.active {
  border-color: rgba(122,0,223,0.4);
  background: rgba(122,0,223,0.05);
  box-shadow: 0 0 0 3px rgba(122,0,223,0.1);
}
.topic-timestamp {
  font-size: 11px;
  color: var(--color-accent-from);
  font-weight: 600;
  margin-bottom: 3px;
  font-variant-numeric: tabular-nums;
}
.topic-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 3px;
  line-height: 1.3;
}
.topic-summary {
  font-size: 12px;
  color: var(--color-muted);
  line-height: 1.4;
}

/* ── Chat: messages area ── */
.chat-messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 12px 14px 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(0,0,0,0.15) transparent;
}
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.15); border-radius: 2px; }

/* ── Suggested questions (chat tab) ── */
.suggested-questions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}
.suggested-chip {
  background: var(--color-surface);
  border: 1px solid rgba(0,0,0,0.1);
  color: #3c3c43;
  padding: 9px 13px;
  border-radius: 10px;
  cursor: pointer;
  font-size: 12.5px;
  text-align: left;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
  font-family: inherit;
}
.suggested-chip:hover {
  background: rgba(122,0,223,0.07);
  border-color: rgba(122,0,223,0.3);
  color: var(--color-accent-from);
}

/* ── Chat bubbles ── */
.chat-message {
  margin-bottom: 10px;
  animation: fadeIn 0.22s ease;
}
.chat-message.user { text-align: right; }
.chat-message.user .chat-bubble {
  background: linear-gradient(135deg, var(--color-accent-from) 0%, var(--color-accent-to) 100%);
  color: #fff;
  display: inline-block;
  text-align: left;
  border-radius: 18px 18px 5px 18px;
  box-shadow: 0 2px 10px rgba(122,0,223,0.35);
}
.chat-message.assistant .chat-bubble {
  background: var(--color-surface);
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 18px 18px 18px 5px;
  color: var(--color-text);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
  display: inline-block;
  max-width: 95%;
}
.chat-bubble {
  padding: 10px 14px;
  font-size: 13.5px;
  line-height: 1.5;
  max-width: 95%;
}

/* ── Answer source label (inside assistant bubble) ── */
.answer-source-label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  font-weight: 500;
  margin-bottom: 6px;
  padding: 0;
  opacity: 0.7;
}
.answer-source-label.confirmed {
  color: var(--color-muted);
}
.answer-source-label.video-based {
  color: var(--color-muted);
}

/* ── Timestamp chip (inside assistant bubble) ── */
.timestamp-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  background: linear-gradient(135deg, rgba(122,0,223,0.1), rgba(6,147,227,0.1));
  border: 1px solid rgba(122,0,223,0.25);
  color: var(--color-accent-from);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s, border-color 0.15s;
}
.timestamp-link:hover {
  background: linear-gradient(135deg, rgba(122,0,223,0.18), rgba(6,147,227,0.18));
  border-color: rgba(122,0,223,0.45);
}

/* ── Siri-style thinking orb ── */
.siri-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6px 4px;
}
.siri-orb {
  width: 96px;
  height: 22px;
  border-radius: 20px;
  background: linear-gradient(90deg, #bf5af2, #0a84ff, #30d158, #ff9f0a, #ff375f, #bf5af2);
  background-size: 300% 100%;
  animation: siri-orb 2.8s ease-in-out infinite;
  filter: blur(5px);
}

/* ── Chat input pill ── */
.chat-input-wrapper {
  padding: 10px 14px 12px;
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}
.question-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
  background: rgba(0,0,0,0.04);
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: 22px;
  padding: 4px 5px 4px 14px;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.question-input-row:focus-within {
  border-color: rgba(122,0,223,0.5);
  box-shadow: 0 0 0 3px rgba(122,0,223,0.1);
  background: var(--color-surface);
}
.question-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 13px;
  outline: none;
  padding: 7px 0;
  font-family: inherit;
}
.question-input::placeholder { color: #aeb0b5; }
.send-button {
  background: linear-gradient(135deg, var(--color-accent-from) 0%, var(--color-accent-to) 100%);
  border: none;
  color: #fff;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: filter 0.15s, transform 0.1s;
  flex-shrink: 0;
  padding: 0;
}
.send-button:hover  { filter: brightness(1.1); }
.send-button:active { transform: scale(0.93); }
.send-button:disabled {
  background: #c7c7cc;
  cursor: default;
  filter: none;
}
.send-button svg { width: 14px; height: 14px; }

/* ── Fallback card (inside chat, when no answer found) ── */
.fallback-card p {
  font-size: 13.5px;
  color: var(--color-text);
  line-height: 1.5;
  margin-bottom: 8px;
}
.fallback-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--color-accent-from), var(--color-accent-to));
  color: white;
  text-decoration: none;
  border-radius: 20px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
}

/* ── Cart CTA (appears below assistant answer) ── */
.cart-cta-wrapper {
  margin-top: 12px;
  padding: 10px 12px;
  background: rgba(0,0,0,0.025);
  border: 1px dashed rgba(122,0,223,0.3);
  border-radius: 12px;
  animation: fadeIn 0.3s ease;
}
.cart-cta-label {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--color-muted);
  letter-spacing: 0.3px;
  text-transform: uppercase;
  margin-bottom: 7px;
  text-align: center;
}
.cart-cta-btn {
  width: 100%;
  background: #fff;
  border: 1.5px solid var(--color-accent-from);
  border-radius: 20px;
  color: var(--color-accent-from);
  font-size: 12.5px;
  font-weight: 600;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, transform 0.1s;
  letter-spacing: -0.01em;
  font-family: inherit;
}
.cart-cta-btn:hover  { background: rgba(122,0,223,0.06); }
.cart-cta-btn:active { transform: scale(0.98); }
.cart-cta-btn.added {
  background: #1a7a35;
  border-color: #1a7a35;
  color: #fff;
}