/* ── Theme Toggle ── */
.theme-toggle {
  margin-left: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all .25s cubic-bezier(0.22, 1, 0.36, 1);
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--color-primary); background: rgba(var(--color-primary-rgb), 0.08); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-moon,
.theme-toggle .icon-sun { transition: opacity .2s; }
.theme-toggle .icon-sun { display: none; }

/* ── Usage Info ── */
.usage-info {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 12px;
  padding: 4px 12px;
  border-radius: 16px;
  background: rgba(var(--color-primary-rgb), 0.06);
  border: 1px solid rgba(var(--color-primary-rgb), 0.15);
  font-size: 11px;
  color: var(--color-text-muted);
  white-space: nowrap;
}
.usage-info .usage-label {
  color: var(--color-text-faint);
}
.usage-info .usage-count {
  color: var(--color-primary);
  font-weight: 500;
}
.usage-info .usage-tokens {
  color: var(--color-text-muted);
  padding-left: 4px;
  border-left: 1px solid rgba(0,0,0,0.08);
}

/* ── Login Overlay ── */
.login-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-overlay.hidden { display: none; }
.login-card {
  background: #fff;
  border-radius: 16px;
  padding: 36px 32px 28px;
  width: 340px;
  box-shadow: 0 12px 48px rgba(0,0,0,0.15);
  text-align: center;
}
.login-card img { height: 56px; margin-bottom: 14px; }
.login-card .login-logo-dark { display: none; }
.login-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 20px; color: #333; }
.login-card input {
  display: block;
  width: 100%;
  padding: 10px 14px;
  margin-bottom: 12px;
  border: 1px solid #e0e3ea;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
  background: #f8f9fc;
  color: #333;
}
.login-card input:focus { border-color: var(--color-primary); }
.login-card .login-btn {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  margin-top: 4px;
  transition: opacity .2s;
}
.login-card .login-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.login-card .login-error {
  color: var(--color-danger);
  font-size: 12px;
  margin-top: 10px;
  min-height: 18px;
}

/* ── Report Panel ── */
.upload-btn {
  font-size: 12px;
  padding: 3px 12px;
  border-radius: 13px;
  border: 1px solid #e6e8f2;
  color: #999;
  cursor: pointer;
  user-select: none;
  background: none;
  transition: all .2s;
}
.upload-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ── Web Search Toggle ── */
.web-search-toggle {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 13px;
  border: 1px solid #e6e8f2;
  color: #999;
  cursor: pointer;
  user-select: none;
  background: none;
  transition: all .2s;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.web-search-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }
.web-search-toggle.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ── Image Preview ── */
.image-preview {
  display: flex; gap: 8px; padding: 8px 12px; flex-wrap: wrap;
}
.image-preview .img-thumb {
  position: relative; width: 60px; height: 60px; border-radius: 8px; overflow: hidden;
  border: 1px solid rgba(0,0,0,0.08);
}
.image-preview .img-thumb img {
  width: 100%; height: 100%; object-fit: cover;
}
.image-preview .img-thumb .img-remove {
  position: absolute; top: -4px; right: -4px; width: 18px; height: 18px;
  border-radius: 50%; background: var(--color-danger); color: #fff; font-size: 12px;
  display: grid; place-items: center; cursor: pointer; border: 0;
}

/* ── Template Info ── */
.template-info {
  font-size: 11px;
  color: #999;
  padding: 4px 0 0;
  display: flex;
  align-items: center;
  gap: 6px;
}
.template-info .name { color: var(--color-primary); }
.template-info .remove {
  color: #ccc;
  cursor: pointer;
  font-size: 13px;
}
.template-info .remove:hover { color: var(--color-danger); }

/* ── Report Panel ── */
.report-panel {
  background: #fff;
  border: 1px solid #eef0f5;
  border-radius: 10px;
  padding: 14px 16px;
  margin: 10px 0;
  font-size: 13px;
  animation: fadeIn 0.3s ease;
}
.report-panel h4 {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: #333;
}
.ph-item {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.ph-item code {
  background: #f0f1f5;
  padding: 1px 6px;
  border-radius: 3px;
  font-size: 12px;
  font-family: monospace;
  color: #666;
}
.ph-item input, .ph-item select {
  flex: 1;
  font-size: 12px;
  padding: 4px 8px;
  border: 1px solid #e6e8f2;
  border-radius: 6px;
  outline: none;
}
.ph-item input:focus, .ph-item select:focus { border-color: var(--color-primary); }
.report-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}
.report-actions button {
  font-size: 12px;
  padding: 6px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: opacity .2s;
}
.btn-generate {
  background: var(--gradient-primary);
  color: #fff;
}
.btn-generate:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-cancel {
  background: #f0f1f5;
  color: #666;
}

/* ── PDF Export ── */
.msg.assistant .bubble-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
  padding-top: 6px;
  border-top: 1px solid rgba(0,0,0,0.04);
}
.bubble-export-toolbox {
  padding: 4px;
  border-radius: 14px;
  border: 1px solid rgba(79,178,207,0.16);
  background: rgba(255,255,255,0.84);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.bubble-export-btn {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  position: relative;
}
.bubble-export-btn .export-icon-img {
  width: 24px;
  height: 24px;
}
.export-toolbox .export-icon-btn {
  position: relative;
  overflow: visible;
  z-index: 2;
}
.export-toolbox .export-icon-btn::after {
  content: attr(data-tip);
  position: absolute;
  left: 50%;
  top: calc(100% + 10px);
  transform: translateX(-50%) translateY(4px);
  padding: 6px 9px;
  border-radius: 8px;
  background: rgba(17, 24, 39, 0.92);
  color: #fff;
  font-size: 11px;
  line-height: 1;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .16s ease, transform .16s ease;
  box-shadow: 0 6px 18px rgba(0,0,0,0.16);
  z-index: 50;
}
.export-toolbox .export-icon-btn:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.ui-tooltip {
  position: fixed;
  left: 0;
  top: 0;
  transform: translate(-50%, 0);
  padding: 6px 9px;
  border-radius: 8px;
  background: rgba(17, 24, 39, 0.94);
  color: #fff;
  font-size: 11px;
  line-height: 1;
  white-space: nowrap;
  pointer-events: none;
  box-shadow: 0 6px 18px rgba(0,0,0,0.16);
  opacity: 0;
  transition: opacity .12s ease, transform .12s ease;
  z-index: 10000;
}

.ui-tooltip.show {
  opacity: 1;
  transform: translate(-50%, -2px);
}

/* Header export icons + PPT button */
.export-toolbox {
  margin-left: 8px;
  padding: 5px;
  border-radius: 18px;
  border: 1px solid rgba(79,178,207,0.26);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 10px 22px rgba(12, 27, 54, 0.08);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.export-icon-btn,
.gen-ppt-btn {
  height: 34px;
  border: 1px solid rgba(79,178,207,0.22);
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  cursor: pointer;
  transition: all .2s ease;
}

.export-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #5d6b7f;
  box-shadow: none;
  margin-left: 0;
  border-color: rgba(79,178,207,0.18);
  background: rgba(255,255,255,0.96);
}

.export-icon-img {
  width: 28px;
  height: 28px;
  display: block;
  pointer-events: none;
}

.export-icon-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(12, 27, 54, 0.1);
}

.export-icon-btn.export-pdf:hover {
  background: rgba(239,99,81,0.12);
  border-color: rgba(239,99,81,0.42);
}

.export-icon-btn.export-word:hover {
  background: rgba(74,136,232,0.12);
  border-color: rgba(74,136,232,0.42);
}

.export-icon-btn.export-ppt:hover {
  background: rgba(224,122,63,0.12);
  border-color: rgba(224,122,63,0.42);
}

.export-icon-btn.export-img:hover {
  background: rgba(67,160,71,0.12);
  border-color: rgba(67,160,71,0.42);
}

.gen-ppt-btn {
  border-radius: 999px;
  padding: 0 16px 0 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, #00c9c3, #0094f4);
  box-shadow: 0 10px 24px rgba(0,148,244,0.22);
  position: relative;
  overflow: hidden;
  margin-left: 10px;
}

.gen-ppt-btn svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.gen-ppt-btn span {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.gen-ppt-glow {
  position: absolute;
  inset: auto auto -18px -10px;
  width: 68px;
  height: 68px;
  background: radial-gradient(circle, rgba(255,255,255,0.28), transparent 68%);
  pointer-events: none;
}

.gen-ppt-stars {
  position: relative;
  width: 14px;
  height: 14px;
  display: inline-block;
  margin-right: -2px;
}

.gen-ppt-stars i {
  position: absolute;
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255,255,255,0.95);
  box-shadow: 0 0 6px rgba(255,255,255,0.5);
}

.gen-ppt-stars i:nth-child(1) {
  top: 0;
  left: 5px;
}

.gen-ppt-stars i:nth-child(2) {
  bottom: 1px;
  left: 0;
  width: 3px;
  height: 3px;
}

.gen-ppt-stars i:nth-child(3) {
  right: 0;
  top: 6px;
  width: 3px;
  height: 3px;
}

.gen-ppt-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(0,148,244,0.24);
}

@media (max-width: 499px) {
  .gen-ppt-btn {
    width: 38px;
    min-width: 38px;
    padding: 0;
    margin-left: 8px;
    justify-content: center;
    gap: 0;
  }

  .gen-ppt-btn .gen-ppt-glow,
  .gen-ppt-btn .gen-ppt-stars,
  .gen-ppt-btn > span:last-child {
    display: none;
  }
}

/* PDF generation overlay */
.pdf-loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  font-size: 14px;
  color: #fff;
}

/* ── Quota Toast ── */
.quota-toast {
  position: fixed;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.78);
  color: #fff;
  padding: 10px 24px;
  border-radius: 20px;
  font-size: 13px;
  z-index: 10000;
  transition: top 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  white-space: nowrap;
  pointer-events: none;
}
.quota-toast.show {
  top: 18px;
}

/* ── Quota Modal ── */
.quota-modal {
  position: fixed;
  inset: 0;
  z-index: 10001;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.quota-modal.hidden { display: none; }
.quota-modal-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 28px 24px;
  width: 340px;
  text-align: center;
  box-shadow: 0 12px 48px rgba(0, 0, 0, 0.18);
  animation: fadeIn 0.25s ease;
}
.quota-modal-icon {
  font-size: 36px;
  margin-bottom: 10px;
}
.quota-modal-msg {
  font-size: 15px;
  color: #333;
  font-weight: 500;
  margin-bottom: 20px;
}
.quota-modal-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.quota-boost-btn {
  padding: 10px;
  border: none;
  border-radius: 8px;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.2s;
}
.quota-boost-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.quota-close-btn {
  padding: 10px;
  border: 1px solid #e0e3ea;
  border-radius: 8px;
  background: #f8f9fc;
  color: #666;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}
.quota-close-btn:hover { border-color: #ccc; }

/* ── Boost indicator in header ── */
.usage-info .usage-boost {
  font-size: 13px;
  cursor: default;
}

/* ── Plan button in usage bar ── */
.usage-plan-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: rgba(var(--color-secondary-rgb), 0.15);
  color: var(--color-secondary);
  font-size: 10px;
  font-weight: 700;
  cursor: pointer;
  margin-left: 2px;
  transition: all 0.2s;
}
.usage-plan-btn:hover {
  background: var(--color-secondary);
  color: #fff;
}

/* ── Plan Modal ── */
.plan-modal {
  position: fixed;
  inset: 0;
  z-index: 900;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s;
}
.plan-modal.hidden { display: none; }

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.plan-modal-card {
  position: relative;
  background: #fff;
  border-radius: 16px;
  padding: 28px 32px 24px;
  max-width: 640px;
  width: 92%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  border: 1px solid rgba(255,255,255,0.5);
}

.plan-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;
  background: none;
  border: none;
  font-size: 22px;
  color: #999;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}
.plan-modal-close:hover { color: #333; }

.plan-modal-header {
  text-align: center;
  margin-bottom: 20px;
}
.plan-modal-title {
  font-size: 20px;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.plan-modal-subtitle {
  font-size: 12px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ── Model cards ── */
.plan-models {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.plan-model-card {
  border-radius: 12px;
  padding: 16px 12px;
  text-align: center;
  border: 1px solid rgba(0,0,0,0.06);
  transition: transform 0.2s;
}
.plan-model-card:hover { transform: translateY(-2px); }

.plan-model-eco { background: linear-gradient(135deg, rgba(0,201,195,0.08), rgba(0,201,195,0.02)); border-color: rgba(0,201,195,0.2); }
.plan-model-bal { background: linear-gradient(135deg, rgba(0,148,244,0.08), rgba(0,148,244,0.02)); border-color: rgba(0,148,244,0.2); }
.plan-model-pro { background: linear-gradient(135deg, rgba(102,126,234,0.08), rgba(102,126,234,0.02)); border-color: rgba(102,126,234,0.2); }

.plan-model-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  margin-bottom: 6px;
}
.plan-model-eco .plan-model-badge { background: rgba(0,201,195,0.15); color: #00a09b; }
.plan-model-bal .plan-model-badge { background: rgba(0,148,244,0.15); color: #0078d4; }
.plan-model-pro .plan-model-badge { background: rgba(102,126,234,0.15); color: #5a6abf; }

.plan-model-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 8px;
}
.plan-model-quota {
  margin-bottom: 8px;
}
.plan-quota-row {
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.8;
}
.plan-quota-num {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
}
.plan-model-desc {
  font-size: 11px;
  color: var(--color-text-faint);
}

/* ── Sections ── */
.plan-section {
  margin-bottom: 16px;
}
.plan-section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
  padding-left: 8px;
  border-left: 3px solid var(--color-primary);
}

/* examples */
.plan-examples {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.plan-example-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(0,0,0,0.02);
}
.plan-example-scene {
  flex-shrink: 0;
  font-weight: 600;
  color: var(--color-secondary);
  width: 60px;
}
.plan-example-detail {
  color: var(--color-text-muted);
}

/* boost info */
.plan-boost-info {
  font-size: 12px;
  color: var(--color-text-muted);
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(var(--color-primary-rgb), 0.04);
  line-height: 1.6;
}

/* packs */
.plan-packs {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.plan-pack {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(102,126,234,0.04);
  font-size: 12px;
}
.plan-pack-name {
  font-weight: 600;
  color: var(--color-accent);
}
.plan-pack-detail {
  color: var(--color-text-muted);
}
.plan-pack-tip {
  font-size: 11px;
  color: var(--color-accent);
  margin-top: 6px;
  text-align: center;
  font-weight: 500;
}

/* footer */
.plan-footer {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid rgba(0,0,0,0.06);
  text-align: center;
  font-size: 11px;
  color: var(--color-text-faint);
}

/* ── Word Export Menu ── */
.word-export-menu,
.ppt-export-menu {
  background: #fff;
  border: 1px solid #e6e8f2;
  border-radius: 10px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.12);
  padding: 6px;
  min-width: 160px;
  animation: fadeIn 0.15s ease;
}
.wem-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: 7px;
  font-size: 13px;
  color: #333;
  cursor: pointer;
  transition: background 0.15s;
}
.wem-item:hover {
  background: rgba(var(--color-primary-rgb), 0.08);
  color: var(--color-primary);
}
.wem-item .wem-desc {
  font-size: 11px;
  color: #999;
  margin-left: 8px;
}