:root {
  --bg-deep: #0a0a0f;
  --bg-mid: #12121a;
  --bg-panel: #181822;
  --bg-elevated: #1f1f2b;
  --bg-input: #14141c;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #e8e6ef;
  --text-muted: #9490a3;
  --text-dim: #6e6a7c;
  --accent: #a78bfa;
  --accent-soft: #c4b5fd;
  --accent-deep: #7c3aed;
  --accent-glow: rgba(167, 139, 250, 0.25);
  --gold: #d4a574;
  --gold-dim: #a8845a;
  --danger: #f87171;
  --danger-bg: rgba(248, 113, 113, 0.12);
  --success: #86efac;
  --shadow: rgba(0, 0, 0, 0.45);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Noto Serif SC', 'PingFang SC', 'Songti SC', serif;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 20% -10%, rgba(124, 58, 237, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 0%, rgba(167, 139, 250, 0.1) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-mid) 100%);
}

.petals {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(167, 139, 250, 0.12) 1px, transparent 1px),
    radial-gradient(circle, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 100px 100px, 60px 60px;
  opacity: 0.6;
}

.frame {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.eyebrow {
  letter-spacing: 0.35em;
  font-size: 0.75rem;
  color: var(--accent-soft);
  margin: 0 0 0.5rem;
  opacity: 0.85;
}

.header h1 {
  margin: 0;
  font-family: 'Ma Shan Zheng', 'Noto Serif SC', serif;
  font-size: clamp(2.4rem, 8vw, 3.4rem);
  font-weight: 400;
  color: var(--text);
  text-shadow: 0 0 40px var(--accent-glow);
}

.subtitle {
  margin: 0.75rem auto 0;
  max-width: 36rem;
  line-height: 1.7;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem 1.35rem;
  margin-bottom: 1rem;
  box-shadow: 0 8px 32px var(--shadow);
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.stat-card {
  text-align: center;
  padding: 0.85rem;
  border-radius: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 0.35rem;
}

.stat-card strong {
  font-size: 1.35rem;
  color: var(--accent-soft);
}

.token-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin: 1.25rem 0 1.35rem;
  align-items: stretch;
}

.token-row input {
  flex: 1;
  min-width: 12rem;
}

.search-row,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.search-row {
  margin-bottom: 0.75rem;
}

input[type='search'],
input[type='text'],
input[type='password'],
textarea,
select {
  width: 100%;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  font: inherit;
  background: var(--bg-input);
  color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-dim);
}

input[type='search']:focus,
input[type='text']:focus,
input[type='password']:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

#search-input {
  flex: 1 1 240px;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 0.65rem 1.1rem;
  font: inherit;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-rose {
  background: linear-gradient(135deg, var(--accent-deep), #5b21b6);
  color: #fff;
  box-shadow: 0 4px 16px rgba(124, 58, 237, 0.35);
}

.btn-rose:hover {
  box-shadow: 0 6px 22px rgba(124, 58, 237, 0.45);
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-dim));
  color: #1a1208;
  box-shadow: 0 4px 16px rgba(212, 165, 116, 0.25);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-soft);
  background: rgba(167, 139, 250, 0.06);
}

.upload-label {
  display: inline-flex;
  align-items: center;
}

.section-title {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  color: var(--text);
  font-weight: 600;
}

.memory-list {
  display: grid;
  gap: 0.85rem;
}

.memory-card {
  border-radius: 12px;
  padding: 1rem 1.1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  position: relative;
  transition: border-color 0.15s ease;
}

.memory-card:hover {
  border-color: rgba(167, 139, 250, 0.25);
}

.memory-card::before {
  content: '◆';
  position: absolute;
  top: 0.65rem;
  right: 0.9rem;
  color: rgba(167, 139, 250, 0.25);
  font-size: 0.75rem;
}

.memory-card-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
}

.memory-header {
  margin: 0;
  font-size: 1rem;
  color: var(--accent-soft);
}

.memory-header::before {
  content: '';
}

.memory-content {
  margin: 0.65rem 0 0;
  line-height: 1.75;
  white-space: pre-wrap;
  color: var(--text-muted);
}

.card-actions {
  display: flex;
  gap: 0.25rem;
}

.icon-btn {
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text-muted);
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.icon-btn:hover {
  color: var(--accent-soft);
  border-color: var(--accent);
}

.search-result pre {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.75;
  font-family: inherit;
  color: var(--text-muted);
}

.empty-tip {
  text-align: center;
  color: var(--text-dim);
  padding: 2rem 1rem;
}

.empty-tip small {
  color: var(--text-dim);
}

.hidden {
  display: none !important;
}

.auth-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.auth-frame {
  width: 100%;
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.auth-panel {
  max-width: 480px;
  margin: 0 auto;
}

.auth-label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.auth-panel input[type='password'],
.auth-panel input[type='text'] {
  width: 100%;
  margin-bottom: 1rem;
}

.account-panel .auth-label:first-of-type {
  margin-top: 0;
}

.account-display {
  align-self: center;
  font-size: 0.88rem;
  color: var(--text-dim);
}

.auth-submit {
  width: 100%;
}

.gate-error {
  margin: 1rem 0 0;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  font-size: 0.88rem;
  color: var(--danger);
  background: var(--danger-bg);
  border: 1px solid rgba(248, 113, 113, 0.25);
}

.logout-btn {
  margin-top: 0.85rem;
  font-size: 0.82rem;
  padding: 0.35rem 0.85rem;
}

.btn-sm {
  font-size: 0.82rem;
}

.persona-panel {
  background: linear-gradient(145deg, var(--bg-panel) 0%, rgba(24, 20, 36, 0.95) 100%);
  border-color: rgba(167, 139, 250, 0.12);
}

.persona-hint {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.persona-hint code,
.persona-steps code {
  font-family: 'SF Mono', 'Menlo', monospace;
  font-size: 0.82rem;
  background: var(--bg-input);
  color: var(--accent-soft);
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.persona-text {
  width: 100%;
  margin-top: 0;
  border: 1px solid var(--border-strong);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  font-family: 'SF Mono', 'Menlo', 'PingFang SC', monospace;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg-input);
  resize: vertical;
  min-height: 220px;
}

.persona-text:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.persona-actions {
  margin-top: 1rem;
  align-items: center;
}

.persona-steps {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.persona-panel .action-row {
  margin-top: 1rem;
}

.copy-tip {
  align-self: center;
  font-size: 0.9rem;
  color: var(--success);
}

.editor-dialog {
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  padding: 0;
  max-width: 560px;
  width: calc(100% - 2rem);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
  background: var(--bg-panel);
  color: var(--text);
}

.editor-dialog::backdrop {
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(4px);
}

.editor-dialog form {
  padding: 1.5rem;
  background: var(--bg-panel);
}

.editor-dialog h3 {
  margin: 0 0 1rem;
  text-align: center;
  color: var(--text);
  font-family: 'Ma Shan Zheng', serif;
  font-size: 1.6rem;
  font-weight: 400;
}

.layer-badge {
  flex-shrink: 0;
  font-size: 0.72rem;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  background: rgba(167, 139, 250, 0.15);
  color: var(--accent-soft);
  border: 1px solid rgba(167, 139, 250, 0.2);
}

.layer-select {
  width: 100%;
  margin-top: 0.35rem;
}

.editor-dialog label {
  display: block;
  margin-bottom: 0.85rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

@media (max-width: 600px) {
  .frame {
    padding: 1.25rem 0.85rem 3rem;
  }

  .action-row .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}