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

:root {
  --bg: #0a0b14;
  --surface: rgba(255,255,255,0.04);
  --surface-hover: rgba(255,255,255,0.07);
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.16);
  --text: #e8eaf0;
  --text-muted: rgba(232,234,240,0.5);
  --text-dim: rgba(232,234,240,0.3);
  --accent: #7c6df0;
  --accent2: #5b8af5;
  --accent-glow: rgba(124,109,240,0.25);
  --success: #4cdb97;
  --warning: #f0b940;
  --error: #f05a5a;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.22s ease;
}

html, body {
  min-height: 100vh;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== Background ===== */
.bg-gradient {
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(124,109,240,0.18) 0%, transparent 70%),
              radial-gradient(ellipse 60% 40% at 80% 80%, rgba(91,138,245,0.12) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.bg-orbs { position: fixed; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  animation: float 20s ease-in-out infinite;
}
.orb1 { width: 500px; height: 500px; background: var(--accent); top: -200px; left: -100px; animation-delay: 0s; }
.orb2 { width: 400px; height: 400px; background: var(--accent2); bottom: -150px; right: -100px; animation-delay: -7s; }
.orb3 { width: 300px; height: 300px; background: #bf8cf5; top: 40%; left: 60%; animation-delay: -14s; }

@keyframes float {
  0%, 100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(30px,-20px) scale(1.05); }
  66% { transform: translate(-20px,30px) scale(0.97); }
}

/* ===== Container ===== */
.container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 60px;
}

/* ===== Header ===== */
.header {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 36px;
}
.header-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 8px 24px var(--accent-glow);
}
.header-icon svg { width: 26px; height: 26px; color: #fff; }
.header-text h1 { font-size: 1.7rem; font-weight: 700; letter-spacing: -0.5px; }
.header-text p { font-size: 0.875rem; color: var(--text-muted); margin-top: 2px; }

/* ===== Main Grid ===== */
.main-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 20px;
  align-items: start;
}

@media (max-width: 900px) {
  .main-grid { grid-template-columns: 1fr; }
}

/* ===== Panel ===== */
.panel { display: flex; flex-direction: column; gap: 16px; }

/* ===== Card ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: border-color var(--transition);
}
.card:hover { border-color: var(--border-hover); }

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
}
.card-title .icon { font-size: 1rem; }

/* ===== Upload Zone ===== */
.upload-zone {
  border: 2px dashed var(--border-hover);
  border-radius: var(--radius-sm);
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.upload-zone:hover, .upload-zone.drag-over {
  border-color: var(--accent);
  background: rgba(124,109,240,0.06);
}
.upload-icon svg {
  width: 52px; height: 52px;
  color: var(--text-dim);
  margin: 0 auto 12px;
  display: block;
  transition: color var(--transition);
}
.upload-zone:hover .upload-icon svg { color: var(--accent); }
.upload-text { font-size: 0.95rem; font-weight: 500; color: var(--text-muted); }
.upload-hint { font-size: 0.78rem; color: var(--text-dim); margin-top: 4px; }

/* ===== Preview ===== */
.preview-area {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-top: 0;
}
.preview-area img {
  width: 100%;
  max-height: 240px;
  object-fit: contain;
  background: rgba(0,0,0,0.3);
  border-radius: var(--radius-sm);
  display: block;
}
.btn-remove {
  position: absolute;
  top: 8px; right: 8px;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(0,0,0,0.6);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.btn-remove:hover { background: var(--error); }

/* ===== Config ===== */
.config-grid { display: flex; flex-direction: column; gap: 14px; }
.config-item { display: flex; flex-direction: column; gap: 6px; }
.config-item label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.config-item select {
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border-hover);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 10px 12px;
  font-size: 0.875rem;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none'%3E%3Cpath d='M6 9l6 6 6-6' stroke='rgba(232,234,240,0.5)' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 18px;
  padding-right: 36px;
}
.config-item select option { background: #1a1b2e; }
.config-item select:focus { border-color: var(--accent); }

.checkbox-group { display: flex; flex-direction: column; gap: 8px; }
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--text);
  user-select: none;
}
.checkbox-label input { display: none; }
.checkmark {
  width: 18px; height: 18px;
  border: 2px solid var(--border-hover);
  border-radius: 5px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  background: transparent;
}
.checkbox-label input:checked + .checkmark {
  background: var(--accent);
  border-color: var(--accent);
}
.checkbox-label input:checked + .checkmark::after {
  content: '';
  width: 10px; height: 6px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translateY(-1px);
}

/* ===== Generate Button ===== */
.btn-generate {
  width: 100%;
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border: none;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all var(--transition);
  box-shadow: 0 4px 20px var(--accent-glow);
  letter-spacing: 0.3px;
}
.btn-generate:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(124,109,240,0.45);
}
.btn-generate:active:not(:disabled) { transform: translateY(0); }
.btn-generate:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  box-shadow: none;
}
.btn-generate.loading {
  pointer-events: none;
  background: linear-gradient(135deg, rgba(124,109,240,0.7), rgba(91,138,245,0.7));
}
.btn-icon { font-size: 1.1rem; }

/* ===== Progress Card ===== */
.progress-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.status-badge {
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  background: rgba(255,255,255,0.08);
  color: var(--text-muted);
  text-transform: uppercase;
  transition: all var(--transition);
}
.status-badge.pending { background: rgba(240,185,64,0.15); color: var(--warning); }
.status-badge.in_progress { background: rgba(91,138,245,0.15); color: var(--accent2); }
.status-badge.succeeded { background: rgba(76,219,151,0.15); color: var(--success); }
.status-badge.failed { background: rgba(240,90,90,0.15); color: var(--error); }

.task-id { font-size: 0.72rem; color: var(--text-dim); font-family: monospace; }

.progress-bar-wrap {
  height: 6px;
  background: rgba(255,255,255,0.07);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 12px;
}
.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 3px;
  transition: width 0.5s ease;
  box-shadow: 0 0 8px rgba(124,109,240,0.5);
}
.progress-text { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 10px; }
.progress-log {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: monospace;
  max-height: 100px;
  overflow-y: auto;
  background: rgba(0,0,0,0.2);
  border-radius: 6px;
  padding: 8px 10px;
  display: none;
}
.progress-log.has-logs { display: block; }
.log-line { padding: 1px 0; }

/* ===== Viewer Card ===== */
.viewer-hint {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-weight: 400;
  margin-left: auto;
}
.viewer-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 0.75;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: linear-gradient(135deg, #0d0e1a, #151728);
  border: 1px solid var(--border);
}
.viewer-wrap canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}
.viewer-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: rgba(13,14,26,0.85);
  font-size: 0.875rem;
  color: var(--text-muted);
  backdrop-filter: blur(6px);
}
.viewer-loading.hidden { display: none; }
.spinner {
  width: 36px; height: 36px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.viewer-controls {
  display: flex;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.btn-control {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background: var(--surface-hover);
  border: 1px solid var(--border-hover);
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-control:hover { background: rgba(255,255,255,0.1); color: var(--text); border-color: rgba(255,255,255,0.2); }
.btn-control.active { background: rgba(124,109,240,0.15); border-color: var(--accent); color: var(--accent); }

/* ===== Download Card ===== */
.download-grid { display: flex; flex-wrap: wrap; gap: 10px; }
.download-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: var(--surface-hover);
  border: 1px solid var(--border-hover);
  color: var(--text);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
  cursor: pointer;
}
.download-btn:hover {
  background: rgba(124,109,240,0.12);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}
.download-btn .format-badge {
  font-size: 0.7rem;
  padding: 2px 7px;
  border-radius: 4px;
  background: rgba(124,109,240,0.2);
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* ===== Model URL Panel ===== */
.model-url-panel {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(255,255,255,0.07);
}
.model-url-title {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.model-url-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.model-url-fmt {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  min-width: 54px;
  white-space: nowrap;
}
.model-url-input {
  flex: 1;
  min-width: 0;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  padding: 5px 10px;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: 'Courier New', monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: text;
  outline: none;
  transition: border-color 0.2s;
}
.model-url-input:focus {
  border-color: rgba(124,109,240,0.4);
  color: var(--text-primary);
}
.model-url-copy {
  flex-shrink: 0;
  padding: 5px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid rgba(124,109,240,0.35);
  background: rgba(124,109,240,0.1);
  color: var(--accent);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.model-url-copy:hover { background: rgba(124,109,240,0.2); border-color: var(--accent); }
.model-url-copy.copied { background: rgba(76,219,151,0.15); border-color: #4cdb97; color: #4cdb97; }

/* ===== Placeholder ===== */
.placeholder-card {
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.placeholder-content { text-align: center; }
.placeholder-icon svg {
  width: 80px; height: 80px;
  color: var(--text-dim);
  margin: 0 auto 16px;
  display: block;
}
.placeholder-content p { color: var(--text-muted); font-size: 0.95rem; }
.placeholder-sub { font-size: 0.8rem !important; color: var(--text-dim) !important; margin-top: 6px; }

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ===== Toast ===== */
.toast-container {
  position: fixed;
  top: 24px; right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.toast {
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  background: rgba(26,27,46,0.95);
  border: 1px solid var(--border-hover);
  color: var(--text);
  font-size: 0.875rem;
  backdrop-filter: blur(16px);
  pointer-events: auto;
  animation: slideIn 0.25s ease;
  max-width: 320px;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--error); }
.toast.info { border-left: 3px solid var(--accent); }
@keyframes slideIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }

/* ── 加载本地 3D 文件 ─────────────────────────────────── */
.local-load {
  margin-top: 18px;
}
.local-load-title {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin: 0 0 10px;
  display: flex;
  align-items: center;
}
.local-load-dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 18px 16px;
  background: rgba(255,255,255,0.03);
  border: 1.5px dashed rgba(76,219,151,0.35);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  user-select: none;
}
.local-load-dropzone:hover,
.local-load-dropzone.drag-over {
  border-color: rgba(76,219,151,0.75);
  background: rgba(76,219,151,0.06);
}
.local-load-drop-icon {
  color: rgba(76,219,151,0.55);
  transition: color 0.2s;
}
.local-load-dropzone:hover .local-load-drop-icon,
.local-load-dropzone.drag-over .local-load-drop-icon {
  color: rgba(76,219,151,0.9);
}
.local-load-hint {
  margin: 0;
  font-size: 0.83rem;
  color: var(--text-secondary);
}
.local-load-formats {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.local-load-formats strong {
  color: rgba(76,219,151,0.8);
  font-weight: 600;
}

/* ── API Key 卡片 ─────────────────────────────────────── */
.apikey-card {}
.apikey-status {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  letter-spacing: 0.03em;
}
.apikey-ok {
  background: rgba(76,219,151,0.15);
  color: #4cdb97;
  border: 1px solid rgba(76,219,151,0.3);
}
.apikey-missing {
  background: rgba(240,185,64,0.15);
  color: #f0b940;
  border: 1px solid rgba(240,185,64,0.3);
}
.apikey-row {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 8px;
}
.apikey-row input {
  flex: 1;
  padding: 8px 12px;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.82rem;
  font-family: monospace;
  outline: none;
  transition: border-color 0.2s;
  min-width: 0;
}
.apikey-row input:focus { border-color: var(--accent); }
.apikey-row input::placeholder { color: var(--text-muted); font-family: inherit; }
.btn-apikey-toggle {
  flex-shrink: 0;
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.btn-apikey-toggle:hover { background: rgba(255,255,255,0.11); color: var(--text); }
.btn-apikey-save {
  flex-shrink: 0;
  padding: 0 16px; height: 34px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.82rem;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.btn-apikey-save:hover { opacity: 0.85; }
.apikey-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.apikey-hint a {
  color: var(--accent-light, #a89cf5);
  text-decoration: none;
}
.apikey-hint a:hover { text-decoration: underline; }

/* ── 调试预览面板 ─────────────────────────────────────── */
.debug-preview {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px dashed rgba(124,109,240,0.35);
}
.debug-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0 0 10px;
}
.debug-row {
  display: flex;
  gap: 8px;
}
.debug-row input {
  flex: 1;
  padding: 8px 12px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.8rem;
  outline: none;
  transition: border-color 0.2s;
}
.debug-row input:focus { border-color: var(--accent); }
.debug-row input::placeholder { color: var(--text-muted); }
.debug-row button {
  padding: 8px 16px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.82rem;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.debug-row button:hover { opacity: 0.85; }
}