/* ── Reset & Base ─────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #0f1923;
  --navy-light: #1a2a3a;
  --accent: #2c7be5;
  --accent-hover: #1a68d1;
  --bg: #f7f8fa;
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --red: #ef4444;
  --green: #10b981;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

html, body { height: 100%; }
body { font-family: var(--font); color: var(--gray-900); background: var(--bg); }
#app { height: 100dvh; height: 100vh; /* fallback for older browsers */ }
@supports (height: 100dvh) { #app { height: 100dvh; } }

/* ── Login ────────────────────────────────────────── */
.login-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  background: var(--bg);
  padding: 16px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--white);
  border-radius: 12px;
  padding: 40px 32px;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.login-subtitle {
  text-align: center;
  color: var(--gray-500);
  font-size: 14px;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 16px;
  font-family: var(--font);
  transition: border-color 0.15s;
  outline: none;
}

.form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(44,123,229,0.1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-primary {
  width: 100%;
  background: var(--accent);
  color: var(--white);
  padding: 12px;
  margin-top: 8px;
  min-height: 44px;
}

.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }

.login-error {
  color: var(--red);
  font-size: 13px;
  text-align: center;
  margin-top: 12px;
  min-height: 20px;
}

.forgot-password-link {
  text-align: center;
  margin-top: 16px;
}

.forgot-password-link a {
  color: var(--gray-500);
  font-size: 13px;
  text-decoration: none;
  transition: color 0.15s;
}

.forgot-password-link a:hover {
  color: var(--accent);
}

.forgot-message {
  font-size: 13px;
  text-align: center;
  margin-top: 12px;
  min-height: 20px;
  line-height: 1.5;
}

.forgot-message-success {
  color: var(--green);
}

.forgot-message-error {
  color: var(--red);
}

.reset-login-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.reset-login-link:hover {
  text-decoration: underline;
}

/* ── Layout ───────────────────────────────────────── */
.app-layout {
  display: flex;
  height: 100%;
}

/* ── Hamburger ────────────────────────────────────── */
.hamburger-btn {
  display: none;
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: var(--radius);
  background: var(--navy);
  color: var(--white);
  font-size: 22px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 99;
}

.sidebar-overlay.active { display: block; }

/* ── Sidebar ──────────────────────────────────────── */
.sidebar {
  width: 240px;
  min-width: 240px;
  background: var(--navy);
  color: var(--white);
  display: flex;
  flex-direction: column;
  padding: 24px 16px 16px;
}

.sidebar-brand {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  padding: 0 8px 20px;
  border-bottom: 1px solid var(--navy-light);
  margin-bottom: 16px;
}

.sidebar-company {
  font-size: 13px;
  color: var(--gray-400);
  padding: 0 8px;
  margin-bottom: 4px;
}

.sidebar-email {
  font-size: 12px;
  color: var(--gray-500);
  padding: 0 8px;
  word-break: break-all;
}

/* -- New Chat Button ---------------------------------------- */
.btn-new-chat {
  width: calc(100% - 16px);
  margin: 0 8px 12px;
  padding: 10px 12px;
  background: var(--accent);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s;
  min-height: 40px;
}
.btn-new-chat:hover { background: var(--accent-hover); }

/* -- Conversation List -------------------------------------- */
.sidebar-conversations {
  flex: 1;
  overflow-y: auto;
  padding: 0 4px;
  min-height: 0;
}

.conv-date-group {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-500);
  padding: 8px 8px 4px;
  font-weight: 600;
}

.conv-item {
  position: relative;
  padding: 8px 28px 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.12s;
  margin-bottom: 2px;
}
.conv-item:hover { background: var(--navy-light); }
.conv-item.conv-active { background: var(--navy-light); }

.conv-preview {
  font-size: 12px;
  color: var(--gray-300);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.3;
}

.conv-meta {
  font-size: 10px;
  color: var(--gray-500);
  margin-top: 2px;
}

.conv-delete-btn {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--gray-500);
  font-size: 16px;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
  opacity: 0;
  transition: opacity 0.12s, color 0.12s;
}
.conv-item:hover .conv-delete-btn { opacity: 1; }
.conv-delete-btn:hover { color: var(--red); }

.conv-empty {
  font-size: 12px;
  color: var(--gray-500);
  text-align: center;
  padding: 16px 8px;
}

.btn-clear-convs {
  display: block;
  width: calc(100% - 16px);
  margin: 4px 8px 8px;
  padding: 5px 8px;
  font-size: 11px;
  color: #6b7280;
  background: none;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
}
.btn-clear-convs:hover { background: rgba(239,68,68,0.1); color: #ef4444; border-color: rgba(239,68,68,0.2); }
.btn-clear-convs:disabled { opacity: 0.5; cursor: not-allowed; }

.sidebar-spacer { flex: 0 0 auto; height: 8px; }

.btn-logout {
  background: transparent;
  color: var(--gray-400);
  border: 1px solid var(--navy-light);
  width: 100%;
  padding: 10px;
  border-radius: var(--radius);
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  min-height: 44px;
}

.btn-logout:hover {
  background: var(--navy-light);
  color: var(--white);
}

.btn-profile {
  background: transparent;
  color: var(--gray-400);
  border: 1px solid var(--navy-light);
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--radius);
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  margin-bottom: 6px;
}

.btn-profile:hover {
  background: var(--navy-light);
  color: var(--white);
}

/* -- Profile Modal -- */
.profile-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.profile-modal {
  background: var(--white);
  border-radius: 12px;
  padding: 24px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
}

.profile-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
}

.profile-modal-close {
  background: none;
  border: none;
  font-size: 22px;
  cursor: pointer;
  color: var(--gray-400);
  padding: 0 4px;
}

.profile-modal-close:hover {
  color: var(--gray-700);
}

/* ── Chat ─────────────────────────────────────────── */
.chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--white);
  min-width: 0;
}

.chat-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--gray-200);
  font-size: 15px;
  font-weight: 600;
  color: var(--gray-700);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.message-row {
  display: flex;
  gap: 10px;
  max-width: 70%;
}

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

.message-row.assistant {
  align-self: flex-start;
}

.message-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 600;
  flex-shrink: 0;
}

.message-row.assistant .message-avatar {
  background: var(--navy);
  color: var(--white);
}

.message-row.user .message-avatar {
  background: var(--accent);
  color: var(--white);
}

.message-bubble {
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 14px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.message-row.user .message-bubble {
  background: var(--accent);
  color: var(--white);
  border-bottom-right-radius: 4px;
}

.message-row.assistant .message-bubble {
  background: var(--gray-100);
  color: var(--gray-900);
  border-bottom-left-radius: 4px;
}

.message-time {
  font-size: 11px;
  color: var(--gray-400);
  margin-top: 4px;
  padding: 0 4px;
}

.message-row.user .message-time { text-align: right; }

/* ── Message Column ───────────────────────────────── */
.message-col { min-width: 0; max-width: 100%; }

/* ── Product Card Carousel ───────────────────────── */
.pc-wrapper {
  position: relative;
}

.product-carousel {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding: 8px 0 4px;
  scrollbar-width: none;
}
.product-carousel::-webkit-scrollbar { display: none; }

.pc-card {
  flex: 0 0 160px;
  width: 160px;
  background: var(--white);
  border: 0.5px solid var(--gray-200);
  border-radius: 8px;
  overflow: hidden;
  scroll-snap-align: start;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.pc-card:hover {
  border-color: #d4a017;
  box-shadow: 0 2px 8px rgba(212,160,23,0.12);
}

/* Featured product card for SKU mode — single centered card */
.pc-featured-wrapper {
  display: flex;
  justify-content: center;
  padding: 8px 0 4px;
}
.pc-featured-card.pc-card {
  flex: 0 0 280px;
  width: 280px;
}
.pc-featured-card .pc-img-wrap {
  height: 160px;
}
.pc-near-match-badge {
  position: absolute;
  top: 6px;
  left: 6px;
  background: #f59e0b;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  z-index: 2;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.pc-restricted-badge {
  position: absolute;
  top: 6px;
  left: 6px;
  background: #f59e0b;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  z-index: 2;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.rep-contact-btn {
  background: #f59e0b !important;
  color: #fff !important;
  border: none !important;
}
.rep-contact-btn:hover {
  background: #d97706 !important;
}
.pd-restricted-notice {
  font-size: 13px;
  color: #b45309;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 6px;
  padding: 8px 12px;
  margin: 8px 0;
  font-weight: 500;
}
.pc-matched-variant-badge {
  font-size: 11px;
  font-weight: 600;
  color: #059669;
  margin: 2px 0 4px;
}

.pc-img-wrap {
  position: relative;
  width: 100%;
  height: 110px;
  background: var(--gray-50);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.pc-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.pc-img-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  color: var(--gray-400);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
}

.pc-body { padding: 8px 10px 10px; }
.pc-vendor {
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-400);
  margin-bottom: 2px;
}
.pc-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-900);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 4px;
  min-height: 31px;
}
.pc-sku {
  font-size: 10px;
  color: var(--gray-400);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pc-price {
  font-size: 12px;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 8px;
}
.pc-btn {
  width: 100%;
  padding: 6px 0;
  background: var(--navy);
  color: #d4a017;
  border: none;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.12s;
}
.pc-btn:hover { background: var(--navy-light); }

/* Skeleton cards */
.pc-skeleton .pc-card-skeleton { pointer-events: none; }
.pc-pulse {
  background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 50%, var(--gray-100) 75%);
  background-size: 200% 100%;
  animation: pc-shimmer 1.5s infinite;
}
@keyframes pc-shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Desktop carousel arrows */
.pc-arrow {
  display: none;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 50%;
  background: #0f1923;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  z-index: 2;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
  transition: opacity 0.2s, background 0.15s;
  padding: 0;
}
.pc-arrow:hover { background: #1a2a3a; }
.pc-arrow-left { left: -4px; }
.pc-arrow-right { right: -4px; }
.pc-arrow-hidden { opacity: 0; pointer-events: none; }
.pc-arrow svg { display: block; margin: auto; }

@media (min-width: 769px) {
  .pc-arrow { display: flex; }
}

/* Desktop scroll hint */
.pc-scroll-hint {
  display: none;
  text-align: center;
  font-size: 11px;
  color: var(--gray-400);
  margin-top: 6px;
}
@media (min-width: 769px) {
  .pc-scroll-hint { display: block; }
}

/* ── Product Detail Overlay (Layer 1) ────────────── */
.pd-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  pointer-events: none;
}
.pd-overlay.pd-open { pointer-events: auto; }
.pd-overlay.pd-open .pd-backdrop { opacity: 1; }

.pd-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  opacity: 0;
  transition: opacity 0.3s;
}

/* Mobile: bottom sheet */
.pd-sheet {
  position: relative;
  width: 100%;
  max-height: 90vh;
  background: var(--white);
  border-radius: 16px 16px 0 0;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform 0.3s cubic-bezier(0.32,0.72,0,1);
  z-index: 1;
}
.pd-overlay.pd-open .pd-sheet { transform: translateY(0); }

/* Desktop: centered modal */
@media (min-width: 769px) {
  .pd-overlay { align-items: center; justify-content: center; }
  .pd-sheet {
    width: 500px;
    max-height: 85vh;
    border-radius: 16px;
    transform: translateY(20px);
    opacity: 0;
    transition: transform 0.25s ease, opacity 0.25s ease;
  }
  .pd-overlay.pd-open .pd-sheet { transform: translateY(0); opacity: 1; }
}

.pd-drag-handle {
  width: 36px;
  height: 4px;
  background: var(--gray-300);
  border-radius: 2px;
  margin: 10px auto 0;
  cursor: grab;
}
.pd-close {
  position: absolute;
  top: 8px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  background: var(--gray-100);
  border-radius: 50%;
  font-size: 18px;
  color: var(--gray-700);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}
.pd-close:hover { background: var(--gray-200); }

.pd-content { padding: 20px; }

/* Gallery */
.pd-gallery { position: relative; margin-bottom: 16px; }
.pd-gallery-img-wrap {
  width: 100%;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-50);
  border-radius: 12px;
  overflow: hidden;
}
.pd-gallery-img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}
.pd-img-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  color: var(--gray-400);
  font-size: 40px;
  font-weight: 700;
}

.pd-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border: none;
  background: rgba(255,255,255,0.85);
  border-radius: 50%;
  font-size: 20px;
  color: var(--gray-700);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.12);
}
.pd-nav-left { left: 8px; }
.pd-nav-right { right: 8px; }

.pd-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 8px;
}
.pd-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gray-300);
  cursor: pointer;
  transition: background 0.15s;
}
.pd-dot.active { background: var(--navy); }

/* Info section */
.pd-vendor {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--gray-400);
  margin-bottom: 4px;
}
.pd-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.3;
  margin-bottom: 8px;
}
.pd-price {
  font-size: 16px;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 12px;
}
.pd-type-badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--gray-100);
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 8px;
}
.pd-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 16px;
}
.pd-tag {
  padding: 2px 8px;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  font-size: 10px;
  color: var(--gray-500);
}

/* Variant selectors */
.pd-option-group { margin-bottom: 14px; }
.pd-option-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.pd-color-row { display: flex; gap: 6px; flex-wrap: wrap; }
.pd-swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.12s, box-shadow 0.12s;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.08);
}
.pd-swatch:hover { box-shadow: 0 0 0 2px var(--gray-300); }
.pd-swatch.active { border-color: var(--navy); box-shadow: 0 0 0 2px var(--navy); }
.pd-swatch-light { box-shadow: inset 0 0 0 1px var(--gray-300); }
.pd-swatch-light.active { box-shadow: inset 0 0 0 1px var(--gray-300), 0 0 0 2px var(--navy); }

.pd-size-row { display: flex; gap: 6px; flex-wrap: wrap; }
.pd-size-pill {
  padding: 6px 14px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  background: var(--white);
  font-size: 12px;
  font-weight: 500;
  color: var(--gray-700);
  cursor: pointer;
  font-family: var(--font);
  transition: background 0.12s, border-color 0.12s;
}
.pd-size-pill:hover { border-color: var(--gray-400); }
.pd-size-pill.active {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

.pd-select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--font);
  color: var(--gray-700);
  background: var(--white);
  outline: none;
}
.pd-select:focus { border-color: var(--accent); }

.pd-sku-display {
  font-size: 13px;
  color: var(--gray-500);
  margin: 12px 0 16px;
}
.pd-sku-display strong { color: var(--gray-900); }

/* Quantity stepper */
.pd-qty-stepper { margin: 12px 0 8px; }
.pd-qty-label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--gray-600); margin-bottom: 6px; text-transform: uppercase;
  letter-spacing: 0.5px;
}
.pd-qty-controls {
  display: flex; align-items: center; gap: 0;
  border: 1px solid var(--gray-200); border-radius: 8px;
  overflow: hidden; width: fit-content;
}
.pd-qty-btn {
  width: 40px; height: 40px; background: var(--gray-50); border: none;
  font-size: 18px; font-weight: 600; color: var(--gray-700);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background 0.12s;
}
.pd-qty-btn:hover { background: var(--gray-100); }
.pd-qty-btn:active { background: var(--gray-200); }
.pd-qty-input {
  width: 56px; height: 40px; border: none; text-align: center;
  font-size: 15px; font-weight: 600; color: var(--gray-900);
  background: #fff; font-family: var(--font);
  border-left: 1px solid var(--gray-200);
  border-right: 1px solid var(--gray-200);
  -moz-appearance: textfield;
}
.pd-qty-input::-webkit-outer-spin-button,
.pd-qty-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.pd-qty-min-note {
  font-size: 11px; color: var(--gray-500); margin-top: 4px;
}
.pd-qty-adjust-note {
  font-size: 11px; color: #f59e0b; margin-top: 4px; font-weight: 500;
}
.pd-qty-btn:disabled {
  opacity: 0.3; cursor: default; pointer-events: none;
}

/* Validation message */
.pd-validation-msg {
  font-size: 12px; color: #ef4444; margin: 6px 0; font-weight: 500;
}

/* Add to Cart success state */
.pd-btn-success {
  background: #16a34a !important; color: #fff !important;
}
.pd-order-btn:disabled {
  opacity: 0.7; cursor: default;
}

.pd-order-btn {
  width: 100%;
  padding: 14px 0;
  background: var(--navy);
  color: #d4a017;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s;
}
.pd-order-btn:hover { background: var(--navy-light); }

/* Minimum quantity badge */
.pd-min-qty-area { margin: 6px 0 4px; }
.pd-min-qty-badge {
  display: inline-block;
  background: #fef3c7;
  color: #92400e;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 12px;
  letter-spacing: 0.01em;
}
.pd-min-qty-total {
  font-size: 12px;
  color: var(--gray-500);
  margin-top: 3px;
}

/* Savings callout */
.pd-savings-callout {
  background: #ecfdf5;
  color: #065f46;
  font-size: 12px;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
  margin: 10px 0;
  line-height: 1.4;
}

/* Per-variant savings label */
.pd-variant-savings {
  color: #059669;
  font-size: 11px;
  font-weight: 600;
  margin-top: 4px;
}

/* Carousel savings badge */
.pc-savings-badge {
  position: absolute;
  top: 6px;
  right: 6px;
  background: #059669;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  z-index: 2;
  letter-spacing: 0.02em;
}
/* More Info button (Layer 1) */
.pd-more-info-btn {
  width: 100%;
  padding: 10px 0;
  background: transparent;
  color: var(--gray-500);
  border: 1px solid var(--gray-200);
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  margin-top: 8px;
}
.pd-more-info-btn:hover {
  background: var(--gray-50);
  color: var(--gray-700);
  border-color: var(--gray-300);
}
.pd-remove-cart-btn {
  width: 100%;
  padding: 10px 0;
  background: transparent;
  color: #ef4444;
  border: 1px solid #fecaca;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  margin-top: 8px;
  transition: background 0.15s;
}
.pd-remove-cart-btn:hover { background: #fef2f2; }
.pd-remove-cart-btn:disabled { opacity: 0.5; cursor: default; }

/* ── Product Info Overlay (Layer 2) ──────────────── */
.pi-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100dvh;
  z-index: 10000;
  pointer-events: none;
}
.pi-overlay.pi-open { pointer-events: auto; }
.pi-overlay.pi-open .pi-backdrop { opacity: 1; }

.pi-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.3);
  opacity: 0;
  transition: opacity 0.3s;
}

.pi-sheet {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  max-width: 500px;
  background: var(--white);
  overflow-y: auto;
  z-index: 1;
  display: flex;
  flex-direction: column;
}

/* Mobile: slide from right */
@media (max-width: 768px) {
  .pi-sheet {
    transform: translateX(100%);
    transition: transform 0.3s cubic-bezier(0.32,0.72,0,1);
  }
  .pi-overlay.pi-open .pi-sheet { transform: translateX(0); }
}

/* Desktop: centered modal matching Layer 1 */
@media (min-width: 769px) {
  .pi-overlay { display: flex; align-items: center; justify-content: center; }
  .pi-sheet {
    position: relative;
    top: auto;
    left: auto;
    right: auto;
    width: 500px;
    height: auto;
    max-height: 85vh;
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.25);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.25s ease, transform 0.25s ease;
  }
  .pi-overlay.pi-open .pi-sheet { opacity: 1; transform: translateY(0); }
}

.pi-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--gray-200);
  flex-shrink: 0;
}

.pi-back {
  background: none;
  border: none;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  color: var(--accent);
  cursor: pointer;
  padding: 4px 0;
}
.pi-back:hover { text-decoration: underline; }

.pi-close {
  width: 28px;
  height: 28px;
  border: none;
  background: var(--gray-100);
  border-radius: 50%;
  font-size: 16px;
  color: var(--gray-700);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pi-close:hover { background: var(--gray-200); }

.pi-content {
  padding: 20px;
  flex: 1;
  overflow-y: auto;
}

.pi-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.3;
  margin-bottom: 10px;
}

.pi-meta-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--gray-500);
  margin-bottom: 16px;
}
.pi-meta-label { font-weight: 600; color: var(--gray-500); }
.pi-meta-value { color: var(--gray-700); }
.pi-meta-sep { color: var(--gray-300); }

/* Sanitized HTML description (preserves original formatting) */
.pdi-description {
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray-500);
  margin-bottom: 16px;
  word-break: break-word;
}
.pdi-description p { margin-bottom: 8px; }
.pdi-description p:last-child { margin-bottom: 0; }
.pdi-description ul, .pdi-description ol { padding-left: 20px; margin-bottom: 8px; }
.pdi-description li { margin-bottom: 4px; }
.pdi-description strong, .pdi-description b { font-weight: 500; color: var(--gray-700); }
.pdi-description em { font-style: italic; }
.pdi-description h3, .pdi-description h4 { font-size: 13px; font-weight: 600; color: var(--gray-700); margin: 12px 0 6px; }
.pdi-description img { display: none; } /* hide inline images */

.pi-spec-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 12px;
  font-size: 12px;
  margin-bottom: 12px;
}
.pi-spec-label {
  font-weight: 600;
  color: var(--gray-500);
  white-space: nowrap;
}
.pi-spec-value { color: var(--gray-700); }

.pi-keyword-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 14px;
}
.pi-keyword-pill {
  padding: 2px 8px;
  background: var(--gray-100);
  border-radius: 10px;
  font-size: 10px;
  color: var(--gray-400);
}

.pi-pdf-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 12px;
}

.pi-pdf-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--gray-700);
  font-size: 12px;
  font-weight: 500;
  font-family: var(--font);
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
  margin-top: 4px;
}
.pi-pdf-btn:hover {
  background: var(--gray-50);
  border-color: var(--gray-400);
}

.pi-empty {
  font-size: 13px;
  color: var(--gray-400);
  text-align: center;
  padding: 24px 0;
}

/* Mobile full-screen detail */
@media (max-width: 768px) {
  .pd-sheet {
    width: 100%;
    max-height: 95vh;
    border-radius: 16px 16px 0 0;
  }
  .pd-gallery-img-wrap { height: 220px; }
}

/* ── Input Bar ────────────────────────────────────── */
.chat-input-bar {
  position: sticky;
  bottom: env(safe-area-inset-bottom, 0px);
  padding: 16px 24px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--gray-200);
  display: flex;
  gap: 10px;
  background: var(--white);
  z-index: 10;
}

.chat-input-bar textarea {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 16px;
  font-family: var(--font);
  resize: none;
  outline: none;
  min-height: 44px;
  max-height: 120px;
  line-height: 1.4;
  transition: border-color 0.15s;
}

.chat-input-bar textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(44,123,229,0.1);
}

.btn-send {
  background: var(--accent);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 0 20px;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s;
  white-space: nowrap;
  min-width: 44px;
  min-height: 44px;
}

.btn-send:hover:not(:disabled) { background: var(--accent-hover); }
.btn-send:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Streaming indicator ──────────────────────────── */
.streaming-dot::after {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--gray-400);
  border-radius: 50%;
  margin-left: 4px;
  animation: pulse 1s infinite;
  vertical-align: middle;
}

@keyframes pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ── Admin ────────────────────────────────────────── */
.admin-wrapper {
  max-width: 800px;
  margin: 0 auto;
  padding: 32px 24px;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}

.admin-header h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--navy);
}

.admin-back {
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.admin-section {
  background: var(--white);
  border-radius: 12px;
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

.admin-section h2 {
  font-size: 16px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 16px;
}

.admin-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.admin-form .form-group.full { grid-column: 1 / -1; }

.admin-form .btn-primary {
  grid-column: 1 / -1;
  margin-top: 4px;
}

.admin-msg {
  font-size: 13px;
  text-align: center;
  margin-top: 8px;
  min-height: 20px;
  grid-column: 1 / -1;
}

.admin-msg.success { color: var(--green); }
.admin-msg.error { color: var(--red); }

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.admin-table th {
  text-align: left;
  padding: 10px 12px;
  font-weight: 600;
  color: var(--gray-500);
  border-bottom: 2px solid var(--gray-200);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.admin-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}

.admin-table tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}

.badge-active { background: #d1fae5; color: #065f46; }
.badge-inactive { background: #fee2e2; color: #991b1b; }

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
  border: 1px solid var(--gray-300);
  background: var(--white);
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font);
  color: var(--gray-700);
  transition: background 0.15s;
  min-height: 32px;
}

.btn-sm:hover { background: var(--gray-50); }
.btn-sm.active-filter { background: var(--accent); color: var(--white); border-color: var(--accent); }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 768px) {
  .hamburger-btn { display: flex; }

  .sidebar {
    position: fixed;
    left: -260px;
    top: 0;
    width: 240px;
    min-width: 240px;
    height: 100%;
    z-index: 100;
    transition: left 0.25s ease;
    padding-top: 64px;
  }

  .sidebar.open { left: 0; }

  .chat-header { padding-left: 64px; }

  .message-row { max-width: 85%; }
  .chat-messages { padding: 16px; }
  .chat-input-bar { padding: 12px 16px; padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px)); }

  .admin-form { grid-template-columns: 1fr; }
  .admin-table { font-size: 12px; }
  .admin-table th, .admin-table td { padding: 8px 6px; }
}

/* ══════════════════════════════════════════════════
   CART — Sidebar section
   ══════════════════════════════════════════════════ */
.sidebar-cart-section {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px; margin: 6px 12px; border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.04);
  cursor: default; height: 48px; box-sizing: border-box;
}
.sidebar-cart-icon-wrap {
  font-size: 18px; flex-shrink: 0; opacity: 0.7;
}
.sidebar-cart-info {
  display: flex; flex-direction: column; flex: 1; min-width: 0;
}
.sidebar-cart-count {
  font-size: 13px; font-weight: 600; color: #e0e0e0;
}
.sidebar-cart-total {
  font-size: 11px; color: #999; margin-top: 1px;
}
.sidebar-cart-view-btn {
  padding: 4px 10px; border-radius: 4px; font-size: 11px; font-weight: 600;
  background: rgba(255,255,255,0.08); color: #d4d4d4; border: none;
  cursor: pointer; transition: background 0.15s; flex-shrink: 0;
}
.sidebar-cart-view-btn:hover { background: rgba(255,255,255,0.15); color: #fff; }

/* ══════════════════════════════════════════════════
   CART — Chat header indicator
   ══════════════════════════════════════════════════ */
.chat-header-cart {
  position: relative; background: none; border: none; cursor: pointer;
  font-size: 18px; padding: 4px 8px; color: var(--gray-500);
  transition: color 0.15s;
}
.chat-header-cart:hover { color: var(--gray-700); }
.chat-header-cart-dot {
  position: absolute; top: 2px; right: 4px;
  width: 8px; height: 8px; background: #f59e0b;
  border-radius: 50%; border: 2px solid var(--gray-50);
}

/* ══════════════════════════════════════════════════
   CART — Inline card
   ══════════════════════════════════════════════════ */
.cart-card {
  background: #1e1e1e; border: 1px solid #333; border-radius: 12px;
  margin-top: 10px; overflow: hidden;
}
.cart-card-header {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-bottom: 1px solid #333;
  font-weight: 600; color: #f59e0b; font-size: 14px;
}
.cart-card-icon { font-size: 18px; }
.cart-card-items { padding: 8px 0; }
.cart-card-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 16px; border-bottom: 1px solid #2a2a2a;
}
.cart-card-item-link { cursor: pointer; transition: background 0.12s; }
.cart-card-item-link:hover { background: rgba(255,255,255,0.04); }
.cart-card-item-chevron {
  color: #555; font-size: 18px; margin-left: 8px; flex-shrink: 0;
}
.cart-card-item:last-child { border-bottom: none; }
.cart-card-item-info { flex: 1; min-width: 0; }
.cart-card-item-title {
  font-size: 13px; color: #e0e0e0; font-weight: 500;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cart-card-item-variant { font-size: 11px; color: #888; margin-top: 2px; }
.cart-card-item-nums {
  display: flex; align-items: center; gap: 12px;
  font-size: 13px; color: #d4d4d4; flex-shrink: 0; margin-left: 12px;
}
.cart-card-qty { color: #888; }
.cart-card-price { font-weight: 600; color: #f59e0b; }
.cart-card-error {
  padding: 8px 16px; font-size: 12px; color: #ef4444; background: rgba(239,68,68,0.08);
}
.cart-card-footer {
  padding: 12px 16px; border-top: 1px solid #333;
  display: flex; align-items: center; justify-content: space-between;
}
.cart-card-total { font-size: 14px; color: #e0e0e0; }
.cart-card-total strong { color: #f59e0b; }
.cart-card-actions { display: flex; gap: 8px; }
.cart-card-clear-btn, .cart-card-submit-btn {
  padding: 6px 14px; border-radius: 6px; font-size: 12px; font-weight: 600;
  border: none; cursor: pointer; transition: background 0.15s;
}
.cart-card-clear-btn {
  background: #333; color: #d4d4d4;
}
.cart-card-clear-btn:hover { background: #444; }
.cart-card-submit-btn {
  background: #f59e0b; color: #1a1a1a;
}
.cart-card-submit-btn:hover { background: #fbbf24; }

/* ══════════════════════════════════════════════════
   SUBMIT ORDER MODAL
   ══════════════════════════════════════════════════ */
.som-overlay {
  position: fixed; inset: 0; z-index: 10000;
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity 0.25s ease;
}
.som-overlay.som-open { opacity: 1; }
.som-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.5); backdrop-filter: blur(2px);
}
.som-sheet {
  position: relative; z-index: 1;
  background: #fff; border-radius: 14px;
  width: 90%; max-width: 440px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  transform: translateY(20px); transition: transform 0.25s ease;
  display: flex; flex-direction: column; max-height: 90vh;
  overflow-y: auto;
}
.som-open .som-sheet { transform: translateY(0); }
.som-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px 0;
}
.som-title {
  font-size: 18px; font-weight: 700; color: var(--gray-900); margin: 0;
}
.som-close {
  background: none; border: none; font-size: 22px; color: var(--gray-400);
  cursor: pointer; padding: 4px; line-height: 1;
}
.som-close:hover { color: var(--gray-700); }
.som-body { padding: 16px 24px; }
.som-summary {
  font-size: 14px; color: var(--gray-600); margin-bottom: 20px;
  padding: 10px 14px; background: var(--gray-50); border-radius: 8px;
  font-weight: 500; text-align: center;
}
.som-field { margin-bottom: 16px; }
.som-label {
  display: block; font-size: 12px; font-weight: 600; color: var(--gray-600);
  margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px;
}
.som-input {
  width: 100%; padding: 10px 12px; border: 1px solid var(--gray-200);
  border-radius: 8px; font-size: 14px; font-family: var(--font);
  color: var(--gray-900); background: #fff; box-sizing: border-box;
  transition: border-color 0.15s;
}
.som-input:focus { outline: none; border-color: var(--navy); }
.som-input::placeholder { color: var(--gray-400); }
.som-radio-group { display: flex; flex-direction: column; gap: 8px; }
.som-radio {
  display: flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--gray-700); cursor: pointer;
}
.som-radio input[type="radio"] { accent-color: var(--navy); }
.som-address-form {
  display: flex; flex-direction: column; gap: 8px;
  margin-top: 12px; padding: 12px; background: var(--gray-50);
  border-radius: 8px;
}
.som-row { display: flex; gap: 8px; }
.som-row .som-input { flex: 1; }
.som-sm { max-width: 80px; }
.som-error {
  margin-top: 12px; padding: 10px 14px; background: #fef2f2;
  border: 1px solid #fecaca; border-radius: 8px;
  font-size: 13px; color: #dc2626;
}
.som-footer {
  display: flex; justify-content: flex-end; gap: 10px;
  padding: 16px 24px 20px; border-top: 1px solid var(--gray-100);
}
.som-cancel-btn {
  padding: 10px 20px; border-radius: 8px; font-size: 14px; font-weight: 600;
  background: var(--gray-100); color: var(--gray-700); border: none;
  cursor: pointer; font-family: var(--font); transition: background 0.15s;
}
.som-cancel-btn:hover { background: var(--gray-200); }
.som-submit-btn {
  padding: 10px 24px; border-radius: 8px; font-size: 14px; font-weight: 600;
  background: var(--navy); color: #d4a017; border: none;
  cursor: pointer; font-family: var(--font); transition: background 0.15s;
}
.som-submit-btn:hover { background: var(--navy-light); }
.som-submit-btn:disabled { opacity: 0.5; cursor: default; }

@media (max-width: 480px) {
  .som-sheet { width: 100%; max-width: none; border-radius: 14px 14px 0 0;
    position: fixed; bottom: 0; left: 0; right: 0; max-height: 95vh; }
  .som-open .som-sheet { transform: translateY(0); }
  .som-overlay:not(.som-open) .som-sheet { transform: translateY(100%); }
}

/* ── Toast Notification ──────────────────────────── */
.cart-toast {
  position: sticky;
  top: 0;
  left: 0; right: 0;
  z-index: 50;
  background: #4b5563;
  color: #fff;
  font-size: 13px;
  text-align: center;
  padding: 6px 16px;
  border-radius: 0 0 8px 8px;
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
}
.cart-toast-visible {
  opacity: 1;
  transform: translateY(0);
}
.cart-toast-fade {
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* ── Cart Card Empty State ───────────────────────── */
.cart-card-empty {
  color: #6b7280;
  font-size: 14px;
  padding: 16px;
  text-align: center;
  font-style: italic;
}

/* ── Chat Table ──────────────────────────────────────── */
.chat-table-wrapper {
  margin: 8px 0;
  border-radius: var(--radius);
  overflow: hidden;
}
.chat-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.chat-table th {
  background: var(--gray-100);
  padding: 6px 12px;
  text-align: left;
  font-weight: 500;
  border-bottom: 1px solid var(--gray-200);
}
.chat-table td {
  padding: 6px 12px;
  border-bottom: 0.5px solid var(--gray-200);
}
.chat-table tbody tr:last-child td {
  border-bottom: none;
}

/* ══════════════════════════════════════════════════════
   DARK MODE
   ══════════════════════════════════════════════════════ */
html[data-theme="dark"] {
  --navy: #13161f;
  --navy-light: #1e2130;
  --accent: #4d7cfe;
  --accent-hover: #3d6ce8;
  --bg: #0f1117;
  --white: #1a1d27;
  --gray-50: #1e2130;
  --gray-100: #22263a;
  --gray-200: #2e3350;
  --gray-300: #3d4266;
  --gray-400: #6b7499;
  --gray-500: #9ba3c0;
  --gray-700: #c8cee0;
  --gray-900: #f0f2f8;
  --red: #f87171;
  --green: #34d399;
  --shadow: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-lg: 0 4px 24px rgba(0,0,0,0.4);
}

/* Smooth transition */
body, .chat-area, .sidebar, .chat-input-bar, .chat-header,
.login-card, .profile-modal, .pd-sheet, .pi-sheet,
.chat-messages, .message-bubble, .pc-card, .admin-section {
  transition: background-color 200ms, color 200ms, border-color 200ms;
}

/* Fix text-on-dark elements (sidebar, buttons use var(--white) for text) */
html[data-theme="dark"] .sidebar { color: #f0f2f8; }
html[data-theme="dark"] .hamburger-btn { color: #f0f2f8; }
html[data-theme="dark"] .btn-primary { color: #ffffff; }
html[data-theme="dark"] .btn-send { color: #ffffff; }
html[data-theme="dark"] .btn-new-chat { color: #ffffff; }
html[data-theme="dark"] .message-row.assistant .message-avatar { color: #ffffff; }
html[data-theme="dark"] .message-row.user .message-avatar { color: #ffffff; }
html[data-theme="dark"] .conv-preview { color: #9ba3c0; }

/* Chat bubbles */
html[data-theme="dark"] .message-row.user .message-bubble {
  background: #2d5be3; color: #e2e8f0;
}
html[data-theme="dark"] .message-row.assistant .message-bubble {
  background: #1e2130; color: #f0f2f8; border-color: #2e3350;
}

/* Product cards */
html[data-theme="dark"] .pc-card { background: #1e2130; border-color: #2e3350; }
html[data-theme="dark"] .pc-card:hover { border-color: #d4a017; box-shadow: 0 2px 8px rgba(212,160,23,0.2); }
html[data-theme="dark"] .pc-title { color: #f0f2f8; }
html[data-theme="dark"] .pc-img-fallback { background: #22263a; color: #6b7499; }
html[data-theme="dark"] .pc-img-wrap { background: #22263a; }
html[data-theme="dark"] .pc-btn { background: #13161f; }
html[data-theme="dark"] .pc-btn:hover { background: #1e2130; }
html[data-theme="dark"] .pc-arrow { background: #1e2130; }
html[data-theme="dark"] .pc-arrow:hover { background: #22263a; }

/* Product detail overlay */
html[data-theme="dark"] .pd-backdrop { background: rgba(0,0,0,0.7); }
html[data-theme="dark"] .pd-close { background: #22263a; color: #c8cee0; }
html[data-theme="dark"] .pd-close:hover { background: #2e3350; }
html[data-theme="dark"] .pd-gallery-img-wrap { background: #22263a; }
html[data-theme="dark"] .pd-drag-handle { background: #3d4266; }
html[data-theme="dark"] .pd-type-badge { background: #22263a; }
html[data-theme="dark"] .pd-tag { background: #22263a; border-color: #2e3350; }
html[data-theme="dark"] .pd-size-pill { background: #1a1d27; border-color: #2e3350; color: #c8cee0; }
html[data-theme="dark"] .pd-size-pill:hover { border-color: #6b7499; }
html[data-theme="dark"] .pd-size-pill.active { background: #13161f; color: #f0f2f8; border-color: #13161f; }
html[data-theme="dark"] .pd-select { background: #1e2130; border-color: #2e3350; color: #c8cee0; }
html[data-theme="dark"] .pd-qty-btn { background: #22263a; color: #c8cee0; border-color: #2e3350; }
html[data-theme="dark"] .pd-qty-btn:hover { background: #2e3350; }
html[data-theme="dark"] .pd-qty-btn:active { background: #3d4266; }
html[data-theme="dark"] .pd-qty-input { background: #1e2130; color: #f0f2f8; border-color: #2e3350; }
html[data-theme="dark"] .pd-qty-controls { border-color: #2e3350; }
html[data-theme="dark"] .pd-order-btn { background: #13161f; }
html[data-theme="dark"] .pd-order-btn:hover { background: #1e2130; }
html[data-theme="dark"] .pd-nav { background: rgba(30,33,48,0.85); color: #c8cee0; }
html[data-theme="dark"] .pd-dot { background: #3d4266; }
html[data-theme="dark"] .pd-dot.active { background: #f0f2f8; }
html[data-theme="dark"] .pd-swatch:hover { box-shadow: 0 0 0 2px #3d4266; }
html[data-theme="dark"] .pd-swatch.active { border-color: #f0f2f8; box-shadow: 0 0 0 2px #f0f2f8; }
html[data-theme="dark"] .pd-swatch-light { box-shadow: inset 0 0 0 1px #3d4266; }
html[data-theme="dark"] .pd-min-qty-badge { background: rgba(245,158,11,0.15); color: #fbbf24; }
html[data-theme="dark"] .pd-savings-callout { background: rgba(52,211,153,0.1); color: #34d399; }
html[data-theme="dark"] .pd-variant-savings { color: #34d399; }
html[data-theme="dark"] .pd-more-info-btn { color: #9ba3c0; border-color: #2e3350; }
html[data-theme="dark"] .pd-more-info-btn:hover { background: #22263a; color: #c8cee0; border-color: #3d4266; }
html[data-theme="dark"] .pd-remove-cart-btn { color: #f87171; border-color: rgba(248,113,113,0.3); }
html[data-theme="dark"] .pd-remove-cart-btn:hover { background: rgba(248,113,113,0.1); }

/* Product info overlay */
html[data-theme="dark"] .pi-backdrop { background: rgba(0,0,0,0.5); }
html[data-theme="dark"] .pi-close { background: #22263a; color: #c8cee0; }
html[data-theme="dark"] .pi-close:hover { background: #2e3350; }
html[data-theme="dark"] .pi-back { color: #4d7cfe; }
html[data-theme="dark"] .pi-keyword-pill { background: #22263a; color: #6b7499; }
html[data-theme="dark"] .pi-pdf-btn { background: #1e2130; border-color: #2e3350; color: #c8cee0; }
html[data-theme="dark"] .pi-pdf-btn:hover { background: #22263a; border-color: #3d4266; }
html[data-theme="dark"] .pdi-description strong,
html[data-theme="dark"] .pdi-description b { color: #c8cee0; }
html[data-theme="dark"] .pdi-description h3,
html[data-theme="dark"] .pdi-description h4 { color: #c8cee0; }
@media (min-width: 769px) {
  html[data-theme="dark"] .pi-sheet { box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5); }
}

/* Login form */
html[data-theme="dark"] .form-group input {
  background: #1e2130; border-color: #2e3350; color: #f0f2f8;
}
html[data-theme="dark"] .form-group input:focus {
  border-color: #4d7cfe; box-shadow: 0 0 0 3px rgba(77,124,254,0.15);
}
html[data-theme="dark"] .forgot-password-link a { color: #9ba3c0; }
html[data-theme="dark"] .forgot-password-link a:hover { color: #4d7cfe; }
html[data-theme="dark"] .forgot-message-success { color: #34d399; }
html[data-theme="dark"] .forgot-message-error { color: #f87171; }
html[data-theme="dark"] .reset-login-link { color: #4d7cfe; }

/* Chat input */
html[data-theme="dark"] .chat-input-bar textarea {
  background: #1e2130; border-color: #2e3350; color: #f0f2f8;
}
html[data-theme="dark"] .chat-input-bar textarea:focus {
  border-color: #4d7cfe; box-shadow: 0 0 0 3px rgba(77,124,254,0.15);
}
html[data-theme="dark"] .chat-input-bar textarea::placeholder { color: #6b7499; }

/* Admin sections */
html[data-theme="dark"] .admin-table td { border-color: #2e3350; }
html[data-theme="dark"] .admin-table th { border-color: #2e3350; }
html[data-theme="dark"] .btn-sm { background: #1e2130; border-color: #2e3350; color: #c8cee0; }
html[data-theme="dark"] .btn-sm:hover { background: #22263a; }
html[data-theme="dark"] .btn-sm.active-filter { background: #4d7cfe; color: #ffffff; border-color: #4d7cfe; }
html[data-theme="dark"] .badge-active { background: rgba(52,211,153,0.15); color: #34d399; }
html[data-theme="dark"] .badge-inactive { background: rgba(248,113,113,0.15); color: #f87171; }

/* Cart card */
html[data-theme="dark"] .cart-card { background: #1e2130; border-color: #2e3350; }
html[data-theme="dark"] .cart-card-header { border-color: #2e3350; }
html[data-theme="dark"] .cart-card-item { border-color: #22263a; }
html[data-theme="dark"] .cart-card-footer { border-color: #2e3350; }
html[data-theme="dark"] .cart-card-clear-btn { background: #22263a; }
html[data-theme="dark"] .cart-card-clear-btn:hover { background: #2e3350; }

/* Submit order modal */
html[data-theme="dark"] .som-sheet { background: #1a1d27; }
html[data-theme="dark"] .som-summary { background: #22263a; color: #9ba3c0; }
html[data-theme="dark"] .som-input { background: #1e2130; border-color: #2e3350; color: #f0f2f8; }
html[data-theme="dark"] .som-input:focus { border-color: #4d7cfe; }
html[data-theme="dark"] .som-input::placeholder { color: #6b7499; }
html[data-theme="dark"] .som-cancel-btn { background: #22263a; color: #c8cee0; }
html[data-theme="dark"] .som-cancel-btn:hover { background: #2e3350; }
html[data-theme="dark"] .som-submit-btn { background: #13161f; }
html[data-theme="dark"] .som-footer { border-color: #2e3350; }
html[data-theme="dark"] .som-address-form { background: #22263a; }
html[data-theme="dark"] .som-error { background: rgba(248,113,113,0.1); border-color: rgba(248,113,113,0.3); color: #f87171; }
html[data-theme="dark"] .som-backdrop { background: rgba(0,0,0,0.7); }

/* Modal overlays */
html[data-theme="dark"] .sidebar-overlay { background: rgba(0,0,0,0.6); }
html[data-theme="dark"] .profile-modal-overlay { background: rgba(0,0,0,0.7); }

/* Toast */
html[data-theme="dark"] .cart-toast { background: #2e3350; }

/* Scrollbars */
html[data-theme="dark"] .chat-messages::-webkit-scrollbar-thumb { background: #3d4266; }

/* Skeleton shimmer */
html[data-theme="dark"] .pc-pulse {
  background: linear-gradient(90deg, #22263a 25%, #2e3350 50%, #22263a 75%);
  background-size: 200% 100%;
}

/* ── Dark Mode Safety Net — catch hardcoded dark text in inline styles ── */
html[data-theme="dark"] [style*="color:var(--navy)"],
html[data-theme="dark"] [style*="color: var(--navy)"] {
  color: var(--gray-900) !important;
}
html[data-theme="dark"] [style*="color:#64748b"],
html[data-theme="dark"] [style*="color: #64748b"] {
  color: #9ba3c0 !important;
}
html[data-theme="dark"] [style*="color:#1e293b"],
html[data-theme="dark"] [style*="color: #1e293b"] {
  color: #f0f2f8 !important;
}

html[data-theme="dark"] .login-logo { color: #f0f2f8; }

/* Dark mode toggle button */
/* ── Catalog Grid (category browse mode) ──────────── */
.catalog-container {
  margin-top: 8px;
}
.catalog-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 6px 4px 8px;
  border-radius: 6px;
  transition: background-color 0.4s ease;
}
.catalog-header-flash {
  background-color: rgba(44, 123, 229, 0.1);
}
html[data-theme="dark"] .catalog-header-flash {
  background-color: rgba(44, 123, 229, 0.15);
}
.catalog-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--gray-900);
}
.catalog-count {
  font-size: 12px;
  color: var(--gray-500);
}
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 0 0 8px;
}
.catalog-grid .catalog-card {
  flex: none;
  width: auto;
}
.catalog-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 8px 0 4px;
}
.catalog-page-btn {
  background: var(--navy);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.catalog-page-btn:hover:not(:disabled) { background: var(--navy-light); }
.catalog-page-btn:disabled { opacity: 0.35; cursor: default; }
.catalog-page-info {
  font-size: 12px;
  color: var(--gray-500);
}
@media (max-width: 768px) {
  .catalog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .catalog-grid { grid-template-columns: 1fr; }
}

/* ── Catalog Breadcrumb ──────────────────────────── */
.catalog-breadcrumb {
  font-size: 12px;
  color: var(--gray-500);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
}
.catalog-breadcrumb-step {
  color: var(--accent);
  cursor: pointer;
  background: none;
  border: none;
  font-size: 12px;
  font-family: var(--font);
  padding: 0;
  text-decoration: none;
}
.catalog-breadcrumb-step:hover { text-decoration: underline; }
.catalog-breadcrumb-sep { color: var(--gray-400); margin: 0 2px; }
.catalog-breadcrumb-current { color: var(--gray-700); font-weight: 600; }

/* ── Guide Step Pills (chat bubble) ─────────────── */
.guide-step-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}
.guide-pill {
  font-size: 14px;
  font-family: var(--font);
  font-weight: 500;
  color: var(--accent);
  background: transparent;
  border: 1.5px solid var(--accent);
  border-radius: 20px;
  padding: 8px 18px;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.guide-pill:hover {
  background: var(--accent);
  color: #fff;
}
.guide-pill.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.guide-skip {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--gray-400);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  padding: 0;
  text-decoration: none;
}
.guide-skip:hover { color: var(--accent); text-decoration: underline; }

@media (max-width: 480px) {
  .guide-step-pills { flex-direction: column; }
  .guide-pill { width: 100%; text-align: center; }
}
/* Empty state */
.catalog-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  text-align: center;
  grid-column: 1 / -1;
}
.catalog-empty-icon {
  color: var(--gray-400);
  margin-bottom: 12px;
}
.catalog-empty-text {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 16px;
}

/* Dark theme catalog */
html[data-theme="dark"] .catalog-title { color: #f0f2f8; }
html[data-theme="dark"] .catalog-count { color: #9ba3c0; }
html[data-theme="dark"] .catalog-page-btn { background: #1e2130; color: #f0f2f8; }
html[data-theme="dark"] .catalog-page-btn:hover:not(:disabled) { background: #2e3350; }
html[data-theme="dark"] .catalog-page-info { color: #9ba3c0; }
html[data-theme="dark"] .catalog-breadcrumb { color: #9ba3c0; }
html[data-theme="dark"] .catalog-breadcrumb-step { color: var(--accent); }
html[data-theme="dark"] .catalog-breadcrumb-sep { color: #4a5080; }
html[data-theme="dark"] .catalog-breadcrumb-current { color: #f0f2f8; }
html[data-theme="dark"] .guide-pill { color: var(--accent); border-color: var(--accent); background: transparent; }
html[data-theme="dark"] .guide-pill:hover { background: var(--accent); color: #fff; }
html[data-theme="dark"] .guide-pill.selected { background: var(--accent); color: #fff; }
html[data-theme="dark"] .guide-skip { color: #4a5080; }
html[data-theme="dark"] .guide-skip:hover { color: var(--accent); }
html[data-theme="dark"] .catalog-empty-icon { color: #4a5080; }
html[data-theme="dark"] .catalog-empty-text { color: #9ba3c0; }

.dark-mode-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  padding: 4px 8px;
  color: var(--gray-500);
  transition: color 0.15s;
  line-height: 1;
}
.dark-mode-toggle:hover { color: var(--gray-700); }

/* ── Catalog Pill Button ─────────────────────────── */
.btn-catalog-pill {
  background: none;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 0 12px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  color: var(--gray-500);
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  white-space: nowrap;
  min-height: 44px;
  line-height: 44px;
}
.btn-catalog-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(44,123,229,0.05);
}

/* ── Catalog Picker Panel ────────────────────────── */
.catalog-picker-panel {
  position: relative;
  background: var(--white);
  border-top: 1px solid var(--gray-200);
  padding: 16px 24px;
  animation: catalogSlideUp 0.2s ease-out;
}
@keyframes catalogSlideUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.catalog-picker-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  max-height: 320px;
  overflow-y: auto;
}
.catalog-picker-tile {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 14px 12px;
  font-size: 14px;
  font-weight: 500;
  font-family: var(--font);
  color: var(--gray-700);
  cursor: pointer;
  text-align: center;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.catalog-picker-tile:hover {
  background: rgba(44,123,229,0.08);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Greeting Hint ───────────────────────────────── */
.greeting-hint {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--gray-400);
  line-height: 1.5;
}

/* ── Dark mode overrides for new elements ────────── */
html[data-theme="dark"] .btn-catalog-pill {
  border-color: var(--gray-300);
  color: var(--gray-500);
}
html[data-theme="dark"] .btn-catalog-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(77,124,254,0.1);
}
html[data-theme="dark"] .catalog-picker-panel {
  background: var(--white);
  border-top-color: var(--gray-200);
}
html[data-theme="dark"] .catalog-picker-tile {
  background: var(--gray-100);
  border-color: var(--gray-200);
  color: var(--gray-700);
}
html[data-theme="dark"] .catalog-picker-tile:hover {
  background: rgba(77,124,254,0.15);
  border-color: var(--accent);
  color: var(--accent);
}
html[data-theme="dark"] .greeting-hint {
  color: var(--gray-400);
}