/* ═══════════════════════════════════════════════
   BEAUTY INTELLIGENCE — SHELL CSS  (Light Theme)
═══════════════════════════════════════════════ */
:root {
  --bg-page:    #f0f2f7;
  --bg-bar:     #ffffff;
  --border:     #e2e6ef;
  --border-mid: #cbd5e1;

  --accent:     #6366f1;   /* indigo — primary active */
  --teal:       #0891b2;
  --rose:       #e11d48;
  --amber:      #d97706;

  --text-hi:    #1e293b;
  --text-mid:   #475569;
  --text-low:   #94a3b8;

  --topbar-h:   58px;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-mono:    'IBM Plex Mono', monospace;
  --font-body:    'IBM Plex Sans', sans-serif;
}

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

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-page);
  font-family: var(--font-body);
  color: var(--text-hi);
}

/* ══ PLATFORM TOPBAR ══════════════════════════ */
#platform-topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  z-index: 1000;
  background: var(--bg-bar);
  border-bottom: 1.5px solid var(--border);
  display: flex;
  align-items: stretch;
  padding: 0 20px 0 24px;
  box-shadow: 0 1px 8px rgba(0,0,0,0.06);
}

/* ── Logo ── */
.platform-logo {
  display: flex;
  align-items: center;
  padding-right: 28px;
  border-right: 1.5px solid var(--border);
  flex-shrink: 0;
}
.platform-logo img {
  height: 54px !important;
  width: auto !important;
}

/* ── Tab Nav ── */
.tab-nav {
  display: flex;
  align-items: stretch;
  gap: 2px;
  flex: 1;
  padding: 0 16px;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 20px;
  background: transparent;
  border: none;
  border-bottom: 2.5px solid transparent;
  color: var(--text-low);
  cursor: pointer;
  font-family: var(--font-body);
  transition: all 0.18s ease;
  position: relative;
  white-space: nowrap;
}
.tab-btn:hover {
  color: var(--text-mid);
  background: rgba(99,102,241,0.04);
}
.tab-btn.active {
  color: var(--text-hi);
  border-bottom-color: var(--accent);
}
.tab-btn[data-tab="competitor"].active { border-bottom-color: var(--teal); }
.tab-btn[data-tab="supplychain"].active { border-bottom-color: var(--rose); }

.tab-btn.active .tab-icon { opacity: 1; }
.tab-icon {
  font-size: 16px;
  opacity: 0.45;
  transition: opacity 0.18s;
}
.tab-btn:hover .tab-icon { opacity: 0.75; }

.tab-text-block {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-align: left;
}
.tab-label {
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.2;
  display: block;
}
.tab-desc {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--text-low);
  line-height: 1;
  display: block;
}

/* ── Platform Meta ── */
.platform-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-left: 20px;
  border-left: 1.5px solid var(--border);
  flex-shrink: 0;
}
.live-pill {
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #0a7c55;
  font-weight: 600;
}
.live-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 7px #10b981;
  animation: livePulse 2s ease-in-out infinite;
}
@keyframes livePulse {
  0%,100%{ opacity:1; box-shadow:0 0 7px #10b981; }
  50%{ opacity:0.5; box-shadow:0 0 3px #10b981; }
}
.meta-item {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-low);
  background: #f1f5f9;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* ══ CONTENT FRAMES ═══════════════════════════ */
#frame-container {
  position: fixed;
  top: var(--topbar-h);
  left: 0; right: 0; bottom: 0;
  overflow: hidden;
}

.content-frame {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
  background: var(--bg-page);
  opacity: 0;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity 0.26s ease, transform 0.26s ease;
}
.content-frame.active {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .tab-desc, .logo-sub { display: none; }
  .tab-btn { padding: 0 12px; }
  .meta-item { display: none; }
}
@media (max-width: 640px) {
  .tab-label { font-size: 12px; }
}

/* ══ USER MENU ════════════════════════════════ */
.user-menu {
  position: relative;
  display: flex;
  align-items: center;
  padding-left: 14px;
  border-left: 1.5px solid var(--border);
}
.user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px 5px 5px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--text-hi);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.user-btn:hover,
.user-btn[aria-expanded="true"] { background: #f1f5f9; border-color: var(--border); }
.user-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.user-caret { color: var(--text-low); transition: transform 0.18s; }
.user-btn[aria-expanded="true"] .user-caret { transform: rotate(180deg); }
.user-name { max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.user-avatar {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--teal));
  color: #fff;
  font-size: 12px; font-weight: 600;
  flex-shrink: 0;
}
.user-avatar.lg { width: 36px; height: 36px; font-size: 14px; }

.user-dropdown {
  position: absolute;
  top: calc(100% - 6px);
  right: 0;
  min-width: 220px;
  background: var(--bg-bar);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(15,23,42,0.14);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.16s, transform 0.16s, visibility 0.16s;
}
.user-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0); }
.user-dropdown-head {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 10px 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 6px;
}
.user-dropdown-name { font-size: 13.5px; font-weight: 600; }
.user-dropdown-sub { font-size: 11px; color: var(--text-low); margin-top: 2px; }
.user-dropdown-item {
  width: 100%;
  display: flex; align-items: center; gap: 10px;
  padding: 9px 10px;
  background: transparent;
  border: none;
  border-radius: 7px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text-hi);
  text-align: left;
  cursor: pointer;
}
.user-dropdown-item:hover { background: #f1f5f9; }
.user-dropdown-label { flex: 1; }
.user-dropdown-badge {
  font-size: 10px; font-weight: 600;
  color: #0a7c55; background: #d1fae5;
  padding: 1px 7px; border-radius: 999px;
}

/* ══ WECHAT MODAL ═════════════════════════════ */
.modal-mask {
  position: fixed; inset: 0;
  z-index: 2000;
  background: rgba(15,23,42,0.5);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.modal-mask[hidden], .modal-step[hidden], .user-dropdown-badge[hidden] { display: none; }
.modal {
  position: relative;
  width: 100%; max-width: 380px;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 24px 60px rgba(15,23,42,0.3);
  padding: 32px 28px 24px;
  text-align: center;
  animation: modalIn 0.2s ease;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(8px) scale(0.98); } }
.modal-close {
  position: absolute; top: 10px; right: 12px;
  width: 30px; height: 30px;
  border: none; background: transparent;
  font-size: 22px; line-height: 1; color: var(--text-low);
  border-radius: 6px; cursor: pointer;
}
.modal-close:hover { background: #f1f5f9; color: var(--text-hi); }
.modal-icon {
  width: 52px; height: 52px; margin: 0 auto 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; border-radius: 50%;
  background: #e8f9ef;
}
.modal-icon.ok { background: #07c160; color: #fff; font-size: 26px; font-weight: 700; }
.modal-title { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.modal-desc { font-size: 13px; line-height: 1.6; color: var(--text-mid); margin-bottom: 18px; }
.qr-box {
  width: 188px; height: 188px;
  margin: 0 auto 12px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  position: relative;
}
.qr-box img, .qr-box svg { width: 100%; height: 100%; display: block; }
.qr-placeholder-tag {
  position: absolute; left: 50%; bottom: -9px; transform: translateX(-50%);
  font-size: 10px; color: var(--amber);
  background: #fffbeb; border: 1px solid #fde68a;
  padding: 0 8px; border-radius: 999px; white-space: nowrap;
}
.qr-status {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 12px; color: var(--text-mid);
  margin: 16px 0 18px;
}
.spinner {
  width: 12px; height: 12px;
  border: 2px solid var(--border-mid); border-top-color: #07c160;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.modal-actions { display: flex; gap: 10px; justify-content: center; margin-top: 4px; }
.btn {
  min-width: 108px;
  padding: 9px 18px;
  border-radius: 8px;
  font-family: var(--font-body); font-size: 13px; font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary { background: #07c160; color: #fff; }
.btn-primary:hover { background: #06ad56; }
.btn-ghost { background: #fff; color: var(--text-mid); border-color: var(--border-mid); }
.btn-ghost:hover { background: #f8fafc; }
.btn:focus-visible, .modal-close:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

@media (max-width: 900px) {
  .user-name { display: none; }
}

/* ══ UNBIND ═══════════════════════════════════ */
.modal-icon.warn { background: #fef3c7; color: var(--amber); font-size: 26px; font-weight: 700; }
.btn-danger { background: var(--rose); color: #fff; }
.btn-danger:hover { background: #be123c; }
.btn:disabled { opacity: 0.6; cursor: default; }
.link-danger {
  display: block; margin: 14px auto 0;
  background: none; border: none;
  font-family: var(--font-body); font-size: 12px;
  color: var(--text-low); cursor: pointer;
  text-decoration: underline; text-underline-offset: 2px;
}
.link-danger:hover { color: var(--rose); }
.toast {
  position: fixed; top: calc(var(--topbar-h) + 14px); left: 50%; transform: translateX(-50%);
  z-index: 3000;
  background: var(--text-hi); color: #fff;
  font-size: 13px; padding: 9px 18px; border-radius: 8px;
  box-shadow: 0 8px 24px rgba(15,23,42,0.25);
}
.toast[hidden] { display: none; }