/* ============================================================
   重要事宜推进 — 浅色高端科技风 v5
   ============================================================ */
:root {
  /* 主色调 — 精致靛蓝 */
  --primary: #3B82F6;
  --primary-hover: #2563EB;
  --primary-light: rgba(59,130,246,0.06);
  --accent: #60A5FA;
  --accent-light: rgba(96,165,250,0.05);
  --gradient: linear-gradient(135deg, #3B82F6 0%, #60A5FA 100%);
  --gradient-warm: linear-gradient(135deg, #3B82F6 0%, #38BDF8 100%);
  --gradient-cool: linear-gradient(135deg, #38bdf8 0%, #3B82F6 100%);
  --gradient-glow: 0 0 16px rgba(59,130,246,0.15);

  /* 语义色 */
  --success: #10b981; --success-light: rgba(16,185,129,0.06);
  --warning: #f59e0b; --warning-light: rgba(245,158,11,0.06);
  --danger: #ef4444; --danger-light: rgba(239,68,68,0.06);
  --info: #3b82f6; --info-light: rgba(59,130,246,0.06);

  /* 文字 — 高对比度清晰 */
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;

  /* 背景 — 干净纯白 */
  --bg: #f8f9fb;
  --bg-card: #ffffff;
  --bg-elevated: #ffffff;
  --bg-input: #f8fafc;
  --bg-hover: #f1f5f9;

  /* 边框 — 极细精致 */
  --border: #e2e8f0;
  --border-light: #f1f5f9;

  /* 圆角 */
  --radius-sm: 8px;
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;

  /* 阴影 — 柔和精致 */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.04), 0 2px 4px rgba(0,0,0,0.03);
  --shadow-lg: 0 10px 15px rgba(0,0,0,0.05), 0 4px 6px rgba(0,0,0,0.03);
  --shadow-xl: 0 20px 25px rgba(0,0,0,0.06), 0 8px 10px rgba(0,0,0,0.03);
  --shadow-card: 0 0 0 1px rgba(0,0,0,0.03), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-glow: 0 0 0 1px rgba(59,130,246,0.1), 0 4px 12px rgba(59,130,246,0.06);

  /* 动画 */
  --transition: 0.2s cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 0.35s cubic-bezier(0.4,0,0.2,1);
  --transition-bounce: 0.3s cubic-bezier(0.34,1.56,0.64,1);

  /* 字体 */
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'JetBrains Mono', 'Fira Code', monospace;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  letter-spacing: -0.01em;
}

/* 微妙科技网格背景 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.5;
  background-image:
    radial-gradient(ellipse at 15% 25%, rgba(59,130,246,0.015) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 75%, rgba(96,165,250,0.01) 0%, transparent 55%),
    linear-gradient(rgba(15,23,42,0.012) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,0.012) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  pointer-events: none;
}

/* 滚动条 */
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:#9ca3af}

/* ===== 选中文字 ===== */
::selection{background:rgba(59,130,246,0.15);color:var(--primary)}

/* ===== 按钮系统 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: none; cursor: pointer; font-family: var(--font);
  font-weight: 500; font-size: 13px; border-radius: var(--radius-sm);
  padding: 9px 18px; transition: all var(--transition);
  position: relative; overflow: hidden;
  white-space: nowrap; user-select: none;
  letter-spacing: 0.01em;
}
.btn:active{transform:scale(0.97)}
.btn:disabled{opacity:0.45;cursor:not-allowed;transform:none}

.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 2px 8px rgba(59,130,246,0.2);
}
.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 14px rgba(59,130,246,0.3);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent; color: var(--text-secondary);
}
.btn-ghost:hover{background:var(--bg-hover);color:var(--text)}

.btn-outline {
  background: transparent; color: var(--primary);
  border: 1px solid var(--border); box-shadow: none;
}
.btn-outline:hover {
  background: var(--primary-light); border-color: var(--primary);
  color: var(--primary);
}

.btn-danger{color:var(--danger)}
.btn-danger:hover{background:var(--danger-light)}

.btn-sm{padding:6px 12px;font-size:12px;border-radius:6px;gap:4px}
.btn-xs{padding:4px 8px;font-size:11px;border-radius:5px;gap:3px}
.btn-icon{width:34px;height:34px;padding:0;border-radius:var(--radius-sm)}
.btn-icon.btn-sm{width:28px;height:28px}

.btn svg{width:16px;height:16px;flex-shrink:0}
.btn-sm svg{width:14px;height:14px}
.btn-xs svg{width:12px;height:12px}

/* ===== 表单输入 ===== */
input[type="text"],input[type="password"],input[type="search"],input[type="date"],
input[type="email"],input[type="url"],
select,textarea {
  font-family: var(--font); font-size: 13px;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 14px; background: #fff;
  color: var(--text); outline: none;
  transition: all var(--transition); width: 100%;
}
input:hover,select:hover,textarea:hover{border-color:#cbd5e1}
input:focus,select:focus,textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.08), 0 0 0 1px rgba(59,130,246,0.15);
  background: #fff;
}
input::placeholder,textarea::placeholder{color:var(--text-muted)}
select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2394a3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
  padding-right: 36px; cursor: pointer;
}
textarea{resize:vertical;min-height:80px;line-height:1.6}

/* 表单标签 */
.form-label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--text-secondary); margin-bottom: 6px;
  letter-spacing: 0.4px; text-transform: uppercase;
}
.form-group{margin-bottom:16px}
.form-hint{font-size:11px;color:var(--text-muted);margin-top:4px}

/* ===== 徽章系统 ===== */
.badge {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11px; font-weight: 600; padding: 4px 10px;
  border-radius: var(--radius-full); letter-spacing: 0.2px;
  white-space: nowrap;
}

.badge-status-progress{background:#eef2ff;color:var(--primary)}
.badge-status-done{background:#ecfdf5;color:#059669}
.badge-status-paused{background:#fffbeb;color:#b45309}

.badge-priority-high{background:#fef2f2;color:#dc2626}
.badge-priority-medium{background:#fffbeb;color:#b45309}
.badge-priority-low{background:#ecfdf5;color:#059669}

.badge-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.badge-dot.high{background:var(--danger);box-shadow:0 0 6px rgba(239,68,68,0.3)}
.badge-dot.medium{background:var(--warning);box-shadow:0 0 6px rgba(245,158,11,0.3)}
.badge-dot.low{background:var(--success);box-shadow:0 0 6px rgba(16,185,129,0.3)}

/* 状态脉冲动画 */
@keyframes pulse-dot {
  0%,100%{box-shadow:0 0 0 0 rgba(59,130,246,0.3)}
  50%{box-shadow:0 0 0 6px rgba(59,130,246,0)}
}
.badge-dot.progress{background:var(--primary);animation:pulse-dot 2s infinite}

/* ===== 卡片 ===== */
.card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-card);
  transition: all var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* ===== 统计卡片 ===== */
.stat-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  padding: 20px 22px; border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  display: flex; align-items: center; gap: 16px;
  transition: all var(--transition-bounce);
  position: relative; overflow: hidden;
  cursor: default;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--gradient);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--transition-slow);
}
.stat-card:hover::before{transform:scaleX(1)}
.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(59,130,246,0.08);
}
.stat-card-icon {
  width: 44px; height: 44px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 20px;
}
.stat-card-icon.primary{background:var(--primary-light);color:var(--primary)}
.stat-card-icon.success{background:var(--success-light);color:var(--success)}
.stat-card-icon.warning{background:var(--warning-light);color:var(--warning)}
.stat-card-icon.danger{background:var(--danger-light);color:var(--danger)}
.stat-card-body{flex:1;min-width:0}
.stat-card-value{font-size:30px;font-weight:700;line-height:1;letter-spacing:-1.5px;color:var(--text)}
.stat-card-label{font-size:12px;color:var(--text-muted);margin-top:4px;font-weight:500}

/* ===== 弹窗遮罩 ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(15,23,42,0.3);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  animation: fadeIn 0.2s ease;
  padding: 20px;
}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

.modal-panel {
  background: var(--bg-card); border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%; max-width: 540px; max-height: 90vh;
  overflow-y: auto; padding: 28px;
  animation: slideUp 0.25s var(--transition-bounce);
  border: 1px solid var(--border-light);
}
@keyframes slideUp{from{opacity:0;transform:translateY(16px) scale(0.98)}to{opacity:1;transform:translateY(0) scale(1)}}

.modal-panel h2 {
  font-size: 18px; font-weight: 700; margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px; color: var(--text);
}
.modal-panel h2 .icon{color:var(--primary)}
.modal-actions {
  display: flex; gap: 10px; justify-content: flex-end;
  margin-top: 24px; padding-top: 20px;
  border-top: 1px solid var(--border-light);
}

/* ===== 产品复选框 ===== */
.product-check-grid{display:flex;flex-wrap:wrap;gap:8px}
.product-check-item {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: var(--radius-full);
  border: 1px solid var(--border); background: #fff;
  font-size: 13px; font-weight: 500; color: var(--text-secondary);
  cursor: pointer; transition: all var(--transition);
  user-select: none;
}
.product-check-item:hover{border-color:var(--primary);color:var(--primary)}
.product-check-item.active {
  background: var(--primary-light); border-color: var(--primary);
  color: var(--primary); font-weight: 600;
  box-shadow: 0 0 0 2px rgba(59,130,246,0.1);
}
.product-check-item input{display:none}

/* ===== Toast ===== */
#toast {
  position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%); z-index: 2000;
  background: var(--text); color: #fff; padding: 12px 28px;
  border-radius: var(--radius-full); font-size: 13px; font-weight: 500;
  box-shadow: var(--shadow-xl);
  opacity: 0; pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
#toast.show{opacity:1;transform:translateX(-50%) translateY(-4px)}
#toast.success{background:linear-gradient(135deg,#059669,#10b981)}
#toast.error{background:linear-gradient(135deg,#dc2626,#ef4444)}