/* ═══════════════════════════════════════════════════════════════════
   Themes — CSS 变量 + 公共 UI 工具类
   引用: _Layout.cshtml → <html data-theme="@ThemeService.CurrentTheme">
   加载顺序: site.css → themes.css（最后加载）
   设计: Apple Design 材质与排版体系
   ═══════════════════════════════════════════════════════════════════ */

/* ── 全局重置 ── */
:where(#app) * { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-feature-settings: 'cv01','ss03';
  font-optical-sizing: auto;
  background: var(--bg-canvas);
  background-image: var(--bg-radial);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}

#app { min-height: 100vh; }

/* ═══════════════════════════════════════════════════════════════════
   Theme Tokens
   ═══════════════════════════════════════════════════════════════════ */

/* ── 原版主题 (深蓝灰) ── */
[data-theme="original"] {
  --bg-canvas:       #0c1119;
  --bg-radial:       radial-gradient(ellipse 80% 60% at 50% 0%, rgba(22,40,70,0.35) 0%, transparent 100%);
  /* 材质面板：玻璃感 = 实色基底 + 模糊 + 顶部光边 */
  --bg-panel:        rgba(18,24,38,0.72);
  --bg-surface:      rgba(255,255,255,0.025);
  --bg-elevated:     rgba(20,26,42,0.85);
  --bg-hover:        rgba(255,255,255,0.04);

  --text-primary:    #e8ecf1;
  --text-secondary:  #94a3b8;
  --text-muted:      #6e7b8c;
  --text-subtle:     #4a5668;

  --accent:          #5e6ad2;
  --accent-hover:    #7170ff;
  --accent-dim:      #4a54b8;
  --accent-glow:     rgba(94,106,210,0.12);

  --gold:            #f0c040;
  --green:           #4ade80;
  --red:             #f87171;
  --blue:            #60a5fa;
  --orange:          #fb923c;

  --border-subtle:   rgba(255,255,255,0.04);
  --border-standard: rgba(255,255,255,0.07);
  --border-visible:  rgba(255,255,255,0.12);
  /* 材质光边：模拟光线在玻璃边缘的折射 */
  --border-light:    rgba(255,255,255,0.06);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-xs:  0 0 0 1px rgba(0,0,0,0.08),
                0 1px 2px rgba(0,0,0,0.16);
  --shadow-sm:  0 0 0 1px rgba(255,255,255,0.03),
                0 2px 4px rgba(0,0,0,0.2),
                0 4px 16px rgba(0,0,0,0.12);
  --shadow-md:  0 0 0 1px rgba(255,255,255,0.04),
                0 4px 8px rgba(0,0,0,0.25),
                0 8px 28px rgba(0,0,0,0.18),
                0 0 0 2px var(--accent-glow);
  --shadow-lg:  0 0 0 1px rgba(255,255,255,0.05),
                0 8px 16px rgba(0,0,0,0.32),
                0 16px 48px rgba(0,0,0,0.28),
                0 0 0 4px var(--accent-glow);

  /* 排版 tracking */
  --tracking-heading:  -0.02em;
  --tracking-body:      0;
  --tracking-caption:   0.02em;
}

/* ── V2 主题 (深紫黑) ── */
[data-theme="v2"] {
  --bg-canvas:       #08080f;
  --bg-radial:       radial-gradient(ellipse 80% 60% at 50% 0%, rgba(94,106,210,0.06) 0%, transparent 100%);
  /* 材质面板：V2 更深底色，玻璃感更含蓄 */
  --bg-panel:        rgba(12,12,22,0.72);
  --bg-surface:      rgba(255,255,255,0.025);
  --bg-elevated:     rgba(16,16,30,0.85);
  --bg-hover:        rgba(255,255,255,0.04);

  --text-primary:    #f0f2f5;
  --text-secondary:  #9ca3af;
  --text-muted:      #737b8a;
  --text-subtle:     #535b6a;

  --accent:          #7170ff;
  --accent-hover:    #828fff;
  --accent-dim:      #5a4fd4;
  --accent-glow:     rgba(113,112,255,0.1);

  --gold:            #f0c040;
  --green:           #4ade80;
  --red:             #f87171;
  --blue:            #60a5fa;
  --orange:          #fb923c;

  --border-subtle:   rgba(255,255,255,0.04);
  --border-standard: rgba(255,255,255,0.07);
  --border-visible:  rgba(255,255,255,0.11);
  --border-light:    rgba(255,255,255,0.05);

  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-xs:  0 0 0 1px rgba(255,255,255,0.02),
                0 1px 2px rgba(0,0,0,0.4);
  --shadow-sm:  0 0 0 1px rgba(255,255,255,0.03),
                0 2px 4px rgba(0,0,0,0.35),
                0 4px 16px rgba(0,0,0,0.28);
  --shadow-md:  0 0 0 1px rgba(255,255,255,0.04),
                0 4px 8px rgba(0,0,0,0.42),
                0 8px 28px rgba(0,0,0,0.35),
                0 0 0 2px var(--accent-glow);
  --shadow-lg:  0 0 0 1px rgba(255,255,255,0.04),
                0 8px 16px rgba(0,0,0,0.48),
                0 16px 48px rgba(0,0,0,0.4),
                0 0 0 4px var(--accent-glow);

  /* 排版 tracking */
  --tracking-heading:  -0.02em;
  --tracking-body:      0;
  --tracking-caption:   0.02em;
}

/* ═══════════════════════════════════════════════════════════════════
   Material Surfaces — Apple 材质深度金字塔
   规则: 越靠近用户的表面越厚、越模糊、越亮
   ═══════════════════════════════════════════════════════════════════ */

/* ── 面板级材质 (Panel) — 卡片、表格、顶层容器 ── */
.material-panel {
  background: var(--bg-panel);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid var(--border-light);
}

/* ── 悬浮级材质 (Elevated) — 弹窗、下拉、叠加层 ── */
.material-elevated {
  background: var(--bg-elevated);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* ═══════════════════════════════════════════════════════════════════
   Utility Classes
   ═══════════════════════════════════════════════════════════════════ */

/* ── 按钮 ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; padding: 8px 18px; border: 1px solid var(--border-standard);
  border-radius: var(--radius-sm); background: rgba(255,255,255,0.03);
  color: var(--text-secondary); font-size: 13px; font-weight: 500;
  cursor: pointer;
  transition: background .15s, color .15s, box-shadow .15s;
  /* transform 和 border-color 不参与 transition，保证按下即时反馈 */
  white-space: nowrap;
}
.btn:hover { background: rgba(255,255,255,0.07); color: var(--text-primary); box-shadow: var(--shadow-xs); }
.btn:active { transform: scale(0.97); transition: none; }
.btn:disabled { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #fff; border-color: transparent; box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-hover), var(--accent));
  box-shadow: var(--shadow-md); transform: translateY(-1px);
}
.btn-primary:active { transform: scale(0.97) translateY(0); transition: none; }

.btn-outline { background: transparent; color: var(--text-muted); border-color: var(--border-visible); }
.btn-outline:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); border-color: var(--text-muted); }

.btn-danger { color: var(--red); border-color: transparent; }
.btn-danger:hover { background: rgba(248,113,113,0.1); color: var(--red); border-color: rgba(248,113,113,0.2); }

.btn-success { color: var(--green); }
.btn-success:hover { background: rgba(74,222,128,0.1); color: var(--green); }

.btn-warning { color: var(--orange); }
.btn-warning:hover { background: rgba(251,146,60,0.1); color: var(--orange); }

.btn-plain { background: transparent; color: var(--text-secondary); border-color: transparent; }
.btn-plain:hover { background: rgba(255,255,255,0.04); color: var(--text-primary); }

.btn-sm {
  padding: 5px 14px; border: 1px solid var(--border-standard);
  border-radius: var(--radius-sm); background: rgba(255,255,255,0.02);
  color: var(--text-secondary); font-size: 12px; font-weight: 500;
  cursor: pointer;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
.btn-sm:hover { background: rgba(255,255,255,0.07); color: var(--text-primary); }
.btn-sm:active { transform: scale(0.97); transition: none; }
.btn-sm:disabled { opacity: .4; cursor: not-allowed; transform: none; }
.btn-sm.buy, .btn-sm.btn-view { color: var(--accent); }
.btn-sm.sell { color: var(--green); }
.btn-sm.cancel, .btn-sm.btn-del, .btn-sm.remove { color: var(--red); }

/* ── 表格 ── */
.data-table {
  width: 100%; border-collapse: collapse; font-size: 14px;
  letter-spacing: var(--tracking-body);
}
.data-table th {
  text-align: left; padding: 11px 12px;
  border-bottom: 1px solid var(--border-standard);
  color: var(--text-muted); font-weight: 500; font-size: 11px;
  text-transform: uppercase; letter-spacing: 0.06em;
  background: var(--bg-canvas); position: sticky; top: 0; z-index: 1;
}
.data-table td {
  padding: 11px 12px; border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary); vertical-align: middle;
}
.data-table tr:hover td { background: var(--bg-hover); }

/* ── 标签 ── */
.badge {
  display: inline-block; padding: 2px 9px; border-radius: 999px;
  font-size: 11px; font-weight: 500; white-space: nowrap;
  letter-spacing: var(--tracking-caption);
}
.badge-open { background: rgba(74,222,128,0.1); color: var(--green); border: 1px solid rgba(74,222,128,0.25); }
.badge-partial { background: rgba(251,146,60,0.1); color: var(--orange); border: 1px solid rgba(251,146,60,0.25); }
.badge-attach { background: rgba(240,192,64,0.12); color: var(--gold); border: 1px solid rgba(240,192,64,0.25); }

/* ── Topbar ── */
.topbar {
  display: flex; align-items: center; gap: 12px; padding: 12px 20px;
  background: var(--bg-panel);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  border-top: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}
.topbar h1 { font-size: 17px; font-weight: 600; color: var(--text-primary); white-space: nowrap; letter-spacing: var(--tracking-heading); line-height: 1.1; }
.topbar .stat { font-size: 13px; color: var(--text-muted); }
.topbar .header-actions { display: flex; gap: 8px; margin-left: auto; }

/* ── Loading / Empty ── */
.loading { text-align: center; padding: 60px; font-size: 15px; color: var(--text-muted); }
.empty-hint { text-align: center; padding: 40px; color: var(--text-muted); font-size: 14px; letter-spacing: var(--tracking-body); }

/* ── Modal 内联错误 ── */
.modal-error {
  background: rgba(248,113,113,0.06);
  border: 1px solid rgba(248,113,113,0.25);
  border-radius: var(--radius-sm);
  padding: 10px 14px; margin: 8px 0;
  color: var(--red); font-size: 13px; line-height: 1.5;
}

/* ── 布局工具 ── */
.btn-row { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; flex-wrap: wrap; }
.action-cell { display: flex; gap: 6px; }
.fee-info { font-size: 13px; color: var(--text-muted); margin: 8px 0; }
.fee-info b { color: var(--text-primary); }
