/* ═══════════════════════════════════════
   USER.CSS — 用户端专属样式
   放置在 app.css 之后加载
   ═══════════════════════════════════════ */

/* ── Page Header ── */
.page-hd {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(10px, 1.2vw, 16px);
  margin-bottom: clamp(16px, 2vw, 24px);
}

.page-hd p {
  margin: 0;
  font-size: clamp(12px, 1.4vw, 14px);
  color: var(--text-muted);
  font-weight: 600;
}

.page-hd h1 {
  margin: 2px 0 0;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.page-hd-actions {
  display: flex;
  align-items: center;
  gap: clamp(8px, 1vw, 14px);
  flex-shrink: 0;
}

.badge-balance {
  display: flex;
  align-items: center;
  gap: clamp(6px, 0.8vw, 10px);
  padding: clamp(6px, 0.8vw, 10px) clamp(10px, 1.2vw, 16px);
  border-radius: var(--radius-full);
  background: var(--main-surface);
  border: 1px solid var(--line);
  text-decoration: none;
  transition: all var(--duration-fast) var(--ease-out-expo);
}

.badge-balance:hover {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.badge-balance .num {
  font-size: clamp(15px, 1.8vw, 20px);
  font-weight: 800;
  color: var(--text);
}

.badge-balance .label {
  font-size: clamp(11px, 1.3vw, 13px);
  color: var(--text-muted);
  font-weight: 600;
}

/* ── Grid layouts ── */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(16px, 2vw, 24px);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(14px, 1.6vw, 20px);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(12px, 1.4vw, 18px);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 220px), 1fr));
  gap: clamp(12px, 1.4vw, 18px);
}

/* ── Card v3 ── */
.card-v3 {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--main-surface);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-out-expo);
}

.card-v3:hover {
  box-shadow: var(--shadow);
}

.card-v3-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(10px, 1.2vw, 16px);
  padding: clamp(14px, 1.8vw, 20px) clamp(16px, 2vw, 24px);
  border-bottom: 1px solid var(--line);
  min-height: 44px;
}

.card-v3-head > div { min-width: 0; }

.card-v3-head .eyebrow {
  margin: 0;
  font-size: clamp(10px, 1.2vw, 12px);
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.03em;
}

.card-v3-head h3 {
  margin: 2px 0 0;
  font-size: clamp(15px, 1.8vw, 19px);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.01em;
}

.card-v3-body {
  padding: clamp(14px, 1.8vw, 22px) clamp(16px, 2vw, 24px);
}

/* ── Mode Toggle ── */
.mode-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.mode-toggle label {
  min-height: clamp(44px, 5.5vw, 52px);
  display: grid;
  place-items: center;
  border: 1.5px solid var(--line);
  border-radius: var(--radius, 14px);
  background: var(--main-surface);
  color: var(--text-soft);
  font-weight: 750;
  font-size: clamp(13px, 1.5vw, 15px);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-expo);
  padding: 0 clamp(12px, 1.4vw, 16px);
}

.mode-toggle label:hover {
  border-color: rgba(59,130,246,0.5);
  background: var(--primary-soft);
  color: var(--primary);
}

.mode-toggle input { display: none; }

.mode-toggle label:has(input:checked),
.mode-toggle label.active {
  border-color: var(--primary);
  background: linear-gradient(135deg, var(--primary-soft), transparent);
  color: var(--primary-dark);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.1);
}

/* ── Media Card (Gallery) ── */
.media-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--main-surface);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.media-card:hover {
  border-color: var(--primary-soft);
  box-shadow: 0 4px 16px var(--primary-glow);
  transform: translateY(-2px);
}

.media-card img,
.media-card video {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}

.media-card-body {
  padding: clamp(8px, 1vw, 12px) clamp(10px, 1.2vw, 14px);
}

.media-card-body .prompt {
  font-size: clamp(12px, 1.4vw, 14px);
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.media-card-body .meta {
  display: flex;
  align-items: center;
  gap: clamp(4px, 0.5vw, 8px);
  margin-top: 4px;
  font-size: clamp(10px, 1.2vw, 12px);
  color: var(--text-muted);
  font-weight: 600;
}

/* ── Status Badge ── */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: clamp(10px, 1.1vw, 11px);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.status-badge.pending {
  background: rgba(245, 158, 11, 0.12);
  color: #b45309;
}

.status-badge.running {
  background: rgba(59, 130, 246, 0.12);
  color: #2563eb;
}

.status-badge.succeeded {
  background: rgba(16, 185, 129, 0.12);
  color: #047857;
}

.status-badge.failed {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

/* ── Upload Box ── */
.edit-upload-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border: 2px dashed var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-expo);
}

.edit-upload-box:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}

.edit-upload-box input { display: none; }

.edit-upload-box strong {
  display: block;
  font-size: 13px;
  color: var(--text);
}

.edit-upload-box small {
  display: block;
  margin-top: 2px;
  font-size: 11px;
  color: var(--text-muted);
}

.edit-upload-icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--main-surface-soft);
  font-size: 20px;
  font-weight: 300;
  color: var(--text-muted);
  flex-shrink: 0;
}

.edit-upload-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.edit-upload-preview img {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--line);
}

/* ── Pricing / Shop ── */
.price-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  background: var(--main-surface);
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.price-card:hover {
  border-color: var(--primary-soft);
  box-shadow: 0 8px 24px var(--primary-glow);
  transform: translateY(-4px);
}

.price-card .price {
  font-size: 32px;
  font-weight: 800;
  color: var(--text);
}

.price-card .price small {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

/* ── History ── */
.history-list {
  display: grid;
  gap: 8px;
}

.record-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--main-surface);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-expo);
}

.record-card:hover {
  border-color: var(--primary-soft);
  background: var(--primary-soft);
}

/* ── Utility ── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 13px;
  line-height: 1.5;
}

.alert.error {
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert strong { display: block; font-weight: 700; margin-bottom: 4px; }
.alert span { opacity: 0.85; }

.hidden { display: none !important; }

/* ── User Center ── */
.uc-section {
  margin-bottom: clamp(16px, 2vw, 24px);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-2 { grid-template-columns: 1fr; }
  .chat-layout { grid-template-columns: 1fr; height: auto; }
}

@media (max-width: 640px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .page-hd { flex-direction: column; align-items: flex-start; }
}

/* ── Button Variants ── */
.btn-primary {
  background: linear-gradient(135deg, var(--primary-light, #60a5fa), var(--primary, #3b82f6));
  color: #fff;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.22);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary, #3b82f6), var(--primary-dark, #2563eb));
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
  transform: translateY(-2px);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  border-color: var(--line);
  background: var(--main-surface);
  color: var(--text-soft);
}
.btn-secondary:hover {
  border-color: rgba(59,130,246,0.5);
  background: var(--primary-soft);
  color: var(--primary);
}

.btn-ghost {
  border-color: transparent;
  background: transparent;
  color: var(--text-soft);
}
.btn-ghost:hover { background: var(--main-surface-soft); }

.btn-sm {
  min-height: 30px;
  padding: 0 clamp(8px, 1vw, 14px);
  font-size: clamp(11px, 1.3vw, 13px);
}

.btn-lg {
  min-height: 48px;
  padding: 0 28px;
  font-size: 15px;
}

/* ── Edit Upload ── */
.edit-upload-field {
  display: grid;
  gap: 8px;
}

.edit-upload-field.hidden { display: none; }

/* ── Prompt Optimize ── */
.prompt-optimize-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.hint { color: var(--text-muted); font-size: 12px; }
.hint.hidden { display: none; }

/* ── Record Delete Form ── */
.record-delete-form { display: inline; }

/* ── Card v3 subtitle ── */
.card-v3-head .sub {
  margin: 0;
  font-size: clamp(10px, 1.2vw, 12px);
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.03em;
}

/* ── History Empty ── */
.history-empty-inline {
  padding: 32px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
}

/* ── Chat Message Text ── */
.chat-msg-text {
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
}
.chat-msg-text p { margin: 0 0 8px; }
.chat-msg-text p:last-child { margin-bottom: 0; }

/* ── Dot (typing indicator) ── */
.dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: dotPulse 1.4s infinite ease-in-out;
}
.dot:nth-child(2) { animation-delay: 0.16s; }
.dot:nth-child(3) { animation-delay: 0.32s; }
@keyframes dotPulse {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
}

/* ── Prompt Optimize Status ── */
.hint.is-error { color: var(--danger, #ef4444); }

.btn-secondary.is-loading { pointer-events: none; opacity: 0.7; }
.field-hint {
  font-size: clamp(11px, 1.3vw, 13px);
  color: var(--text-muted);
  font-weight: 600;
}
.field-hint.hidden { display: none; }
.field-hint.is-error { color: var(--danger, #ef4444); }

/* ── Chat Model Picker (beautified) ── */
.chat-model-picker {
  border: none;
  outline: none;
  background: transparent;
  color: var(--primary, #3b82f6);
  font-size: clamp(11px, 1.3vw, 13px);
  font-weight: 700;
  cursor: pointer;
  padding: 0 16px 0 0;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23999' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 2px center;
  background-size: 10px;
}

.chat-model-picker:hover {
  color: var(--primary-dark, #2563eb);
}

.chat-model-picker option {
  color: var(--text, #1e293b);
  background: var(--main-surface, #fff);
  padding: 4px 8px;
}

/* ── Chat Input Textarea scroll fix ── */
.chat-input::-webkit-scrollbar {
  width: 4px;
}
.chat-input::-webkit-scrollbar-thumb {
  background: var(--line-strong, #cbd5e1);
  border-radius: 2px;
}