/* ===== 变量 ===== */
:root {
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", sans-serif;
  --radius: 12px;
  --transition: 0.25s ease;
}

.theme-dark {
  --bg: #0a0e17;
  --bg-card: rgba(16, 22, 38, 0.85);
  --bg-card-hover: rgba(22, 30, 52, 0.95);
  --border: rgba(0, 212, 255, 0.15);
  --border-glow: rgba(0, 212, 255, 0.4);
  --text: #e8edf5;
  --text-muted: #7a8ba8;
  --accent: #00d4ff;
  --accent2: #7c3aed;
  --positive: #10b981;
  --negative: #ef4444;
  --header-bg: rgba(10, 14, 23, 0.9);
  --input-bg: rgba(255, 255, 255, 0.05);
  --shadow: 0 4px 24px rgba(0, 212, 255, 0.08);
  --grid-bg: radial-gradient(ellipse at 20% 50%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 20%, rgba(0, 212, 255, 0.06) 0%, transparent 50%);
}

.theme-light {
  --bg: #f0f2f5;
  --bg-card: #ffffff;
  --bg-card-hover: #fafbfc;
  --border: #e2e8f0;
  --border-glow: #94a3b8;
  --text: #1e293b;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent2: #7c3aed;
  --positive: #059669;
  --negative: #dc2626;
  --header-bg: rgba(255, 255, 255, 0.95);
  --input-bg: #f8fafc;
  --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  --grid-bg: none;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  transition: background var(--transition), color var(--transition);
  -webkit-text-size-adjust: 100%;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

body.theme-dark {
  background-image: var(--grid-bg);
  background-attachment: fixed;
}

.hidden { display: none !important; }

/* ===== 登录 ===== */
.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  z-index: 1000;
}

.theme-dark .overlay {
  background: #060a12;
  background-image: radial-gradient(circle at 50% 40%, rgba(0, 212, 255, 0.12) 0%, transparent 60%);
}

.login-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 40px;
  width: 380px;
  text-align: center;
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  overflow: hidden;
}

.theme-dark .login-card {
  border-color: rgba(0, 212, 255, 0.25);
  box-shadow: 0 0 60px rgba(0, 212, 255, 0.1), 0 0 120px rgba(124, 58, 237, 0.05);
}

.login-glow {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.3) 0%, transparent 70%);
  pointer-events: none;
}

.login-card h1 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-sub {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 28px;
}

.login-card input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 16px;
  outline: none;
  transition: border-color var(--transition);
  margin-bottom: 16px;
}

.login-card input:focus {
  border-color: var(--accent);
}

.theme-dark .login-card input:focus {
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.2);
}

.login-card button,
.page-btn,
#search-btn {
  padding: 10px 24px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity var(--transition), transform 0.15s;
}

.login-card button { width: 100%; padding: 12px; }

.login-card button:hover,
.page-btn:hover:not(:disabled),
#search-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.error-msg {
  color: var(--negative);
  font-size: 13px;
  margin-top: 12px;
  min-height: 20px;
}

/* ===== 头部 ===== */
.header {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px 32px;
  padding-top: max(16px, env(safe-area-inset-top));
  background: var(--header-bg);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-row-main {
  justify-content: space-between;
  min-width: 0;
}

.header-row-filters,
.header-row-search {
  justify-content: center;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex: 1;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.header h1 {
  font-size: 22px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.theme-dark .header h1 {
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 20px;
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent);
  border: 1px solid var(--border);
}

.header-row-filters {
  flex: 1;
}

.tag-filters {
  display: flex;
  gap: 8px;
  width: 100%;
  max-width: 360px;
}

.tag-filter-btn {
  flex: 1;
  padding: 8px 18px;
  min-height: 40px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.tag-filter-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

.tag-filter-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border-color: transparent;
  box-shadow: 0 2px 12px rgba(0, 212, 255, 0.25);
}

.theme-light .tag-filter-btn.active {
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.2);
}

.header-row-search {
  width: 100%;
}

.search-box {
  display: flex;
  gap: 8px;
  width: 100%;
  max-width: 480px;
}

.search-box input {
  flex: 1;
  min-width: 0;
  width: auto;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 16px;
  outline: none;
  transition: border-color var(--transition);
}

.search-box input:focus { border-color: var(--accent); }

#search-btn {
  padding: 10px 18px;
  font-size: 14px;
  min-height: 44px;
  flex-shrink: 0;
}

.icon-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  font-size: 18px;
  cursor: pointer;
  transition: border-color var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.logout-btn {
  padding: 10px 16px;
  min-height: 44px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.logout-btn:hover {
  border-color: var(--negative);
  color: var(--negative);
}

/* ===== 看板 ===== */
.dashboard {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  padding: 24px 32px;
  max-width: 1600px;
  margin: 0 auto;
}

.strategy-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: border-color var(--transition), box-shadow var(--transition);
  backdrop-filter: blur(8px);
}

.theme-dark .strategy-card:hover {
  border-color: var(--border-glow);
  box-shadow: 0 4px 32px rgba(0, 212, 255, 0.12);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
  gap: 12px;
}

.card-header-main {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.expand-btn {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  transition: all var(--transition);
}

.expand-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(124, 58, 237, 0.08);
}

.theme-dark .expand-btn:hover {
  background: rgba(0, 212, 255, 0.08);
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  flex-shrink: 0;
}

.tag-badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(124, 58, 237, 0.15);
  color: var(--accent2);
  border: 1px solid rgba(124, 58, 237, 0.3);
  white-space: nowrap;
}

.theme-dark .tag-badge {
  background: rgba(0, 212, 255, 0.1);
  color: var(--accent);
  border-color: rgba(0, 212, 255, 0.25);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  word-break: break-all;
}

.theme-dark .card-title {
  color: var(--accent);
}

.card-meta {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) repeat(5, minmax(0, 1fr));
  gap: 12px 18px;
  margin-bottom: 14px;
  font-size: 13px;
  align-items: start;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.meta-label {
  color: var(--text-muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.meta-value {
  font-weight: 600;
  white-space: nowrap;
}

.meta-value.meta-time {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: -0.2px;
}

.meta-value.positive { color: var(--positive); }
.meta-value.negative { color: var(--negative); }

.chart-section {
  margin-bottom: 12px;
}

.chart-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.chart-box {
  width: 100%;
  height: 200px;
}

.mode-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 8px;
}

.mode-tab {
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.mode-tab:hover { border-color: var(--accent2); color: var(--text); }

.mode-tab.active {
  background: linear-gradient(135deg, var(--accent2), #a78bfa);
  color: #fff;
  border-color: transparent;
}

.period-tabs-fixed .period-tab {
  cursor: default;
  opacity: 0.85;
}

.period-tabs-fixed .period-tab:not(.active) {
  display: none;
}

.mode-tab,
.period-tab {
  min-height: 36px;
}

.tag-filter-btn,
.mode-tab,
.period-tab,
.icon-btn,
.logout-btn,
.page-btn,
#search-btn,
.login-card button {
  touch-action: manipulation;
}

.period-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 10px;
  flex-wrap: wrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.period-tabs::-webkit-scrollbar {
  display: none;
}

.period-tab {
  padding: 4px 10px;
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}

.period-tab:hover { border-color: var(--accent); color: var(--text); }

.period-tab.active {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  border-color: transparent;
}

/* ===== 空状态 & 分页 ===== */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
  font-size: 16px;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px 32px;
  padding-bottom: max(32px, calc(20px + env(safe-area-inset-bottom)));
  flex-wrap: wrap;
}

.page-btn {
  font-size: 14px;
  min-height: 44px;
  min-width: 100px;
}

.page-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}

#page-info {
  font-size: 14px;
  color: var(--text-muted);
  min-width: 120px;
  text-align: center;
}

.pagination.is-loading #page-info::after {
  content: " · 加载中";
  color: var(--accent);
}

.pagination.is-loading .page-btn {
  pointer-events: none;
  opacity: 0.55;
}

.page-loading-hint {
  grid-column: 1 / -1;
  padding: 48px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 14px;
}

.page-loading-error {
  color: var(--negative);
}

/* ===== 响应式 ===== */
@media (min-width: 901px) {
  .header {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
  }

  .header-row-main {
    flex: 1 1 auto;
    min-width: 200px;
  }

  .header-row-filters {
    flex: 0 1 auto;
    justify-content: center;
  }

  .header-row-search {
    flex: 0 1 auto;
    width: auto;
    justify-content: flex-end;
  }

  .search-box {
    width: 260px;
  }

  .tag-filters {
    width: auto;
    max-width: none;
  }

  .tag-filter-btn {
    flex: 0 0 auto;
  }
}

@media (max-width: 900px) {
  .dashboard {
    grid-template-columns: 1fr;
    padding: 16px;
    gap: 16px;
  }

  .header {
    padding: 12px 16px;
    padding-top: max(12px, env(safe-area-inset-top));
    gap: 10px;
  }

  .header h1 {
    font-size: 17px;
  }

  .badge {
    font-size: 11px;
    padding: 2px 8px;
  }

  .strategy-card {
    padding: 16px;
  }

  .chart-box {
    height: 220px;
  }

  .pagination {
    padding: 16px;
    padding-bottom: max(24px, calc(16px + env(safe-area-inset-bottom)));
  }
}

@media (max-width: 480px) {
  .login-card {
    width: calc(100% - 32px);
    max-width: 380px;
    padding: 32px 24px;
  }

  .login-card h1 {
    font-size: 22px;
  }

  .header h1 {
    font-size: 15px;
  }

  .header-actions {
    gap: 6px;
  }

  .icon-btn {
    width: 40px;
    height: 40px;
    min-height: 40px;
  }

  .logout-btn {
    padding: 8px 12px;
    min-height: 40px;
    font-size: 12px;
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .card-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 16px;
  }

  .meta-label {
    font-size: 10px;
  }

  .meta-value {
    font-size: 13px;
    word-break: break-all;
  }

  .meta-value.meta-time {
    font-size: 10px;
    word-break: normal;
  }

  .mode-tabs,
  .period-tabs {
    gap: 6px;
  }

  .mode-tab,
  .period-tab {
    padding: 6px 10px;
    font-size: 11px;
  }

  .chart-box {
    height: 200px;
  }

  .page-btn {
    min-width: 88px;
    padding: 10px 16px;
  }

  #page-info {
    flex: 1 1 100%;
    order: -1;
    margin-bottom: 4px;
  }
}

/* ===== 策略放大弹窗 ===== */
body.modal-open {
  overflow: hidden;
}

.strategy-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.strategy-modal.hidden {
  display: none;
}

.strategy-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
}

.strategy-modal-panel {
  position: relative;
  z-index: 1;
  width: min(1200px, 100%);
  max-height: calc(100vh - 32px);
  overflow: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
}

.strategy-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.strategy-modal-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0;
  word-break: break-all;
}

.theme-dark .strategy-modal-title {
  color: var(--accent);
}

.modal-close-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  font-size: 18px;
}

.strategy-modal-meta {
  margin-bottom: 16px;
}

.strategy-modal-controls {
  margin-bottom: 12px;
}

.chart-box-modal {
  height: min(520px, calc(100vh - 280px));
  min-height: 280px;
}

@media (max-width: 900px) {
  .strategy-modal {
    padding: 0;
    align-items: stretch;
  }

  .strategy-modal-panel {
    width: 100%;
    max-height: 100vh;
    border-radius: 0;
    padding: 16px;
    padding-top: max(16px, env(safe-area-inset-top));
    padding-bottom: max(16px, env(safe-area-inset-bottom));
  }

  .chart-box-modal {
    height: min(420px, calc(100vh - 260px));
    min-height: 220px;
  }
}