/**
 * 🕷️ Spider-Tool 公共样式
 * 所有页面共享的基础样式、导航栏、按钮、表单、Toast、Footer 等
 */

/* ══════ CSS 变量 ══════ */
:root {
  --sp-bg: #0a0a12;
  --sp-card: rgba(15,15,25,0.8);
  --sp-card-border: rgba(75,85,99,0.2);
  --sp-red: #dc2626;
  --sp-red-dark: #991b1b;
  --sp-red-light: #fca5a5;
  --sp-blue: #2563eb;
  --sp-blue-light: #93c5fd;
  --sp-green: #22c55e;
  --sp-green-light: #4ade80;
  --sp-purple: #7c3aed;
  --sp-purple-light: #c4b5fd;
  --sp-amber: #f59e0b;
  --sp-amber-light: #fbbf24;
  --sp-text: #e2e8f0;
  --sp-text-muted: #9ca3af;
  --sp-text-dim: #6b7280;
  --sp-text-faint: #4b5563;
  --sp-text-dark: #374151;
  --sp-input-bg: rgba(30,30,50,0.8);
  --sp-input-border: rgba(75,85,99,0.3);
  --sp-font: -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --sp-radius: 12px;
  --sp-radius-lg: 16px;
  --sp-radius-xl: 20px;
}

/* ══════ 基础重置 ══════ */
* { margin:0; padding:0; box-sizing:border-box; }
body {
  min-height: 100vh;
  background: var(--sp-bg);
  font-family: var(--sp-font);
  color: var(--sp-text);
}

/* ── 蛛网背景渐变底层 ── */
body::before {
  content:''; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(ellipse at 10% 0%, rgba(220,38,38,0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 100%, rgba(37,99,235,0.04) 0%, transparent 50%);
}

/* ══════ 导航栏 ══════ */
.navbar {
  display:flex; align-items:center; justify-content:space-between;
  padding:0 20px; height:58px;
  background: rgba(10,10,18,0.92);
  border-bottom:1px solid rgba(220,38,38,0.15);
  backdrop-filter:blur(20px);
  position:sticky; top:0; z-index:100;
}
.navbar::after {
  content:''; position:absolute; bottom:-1px; left:0; right:0; height:1px;
  background: linear-gradient(90deg, transparent, rgba(220,38,38,0.4), transparent);
}
.brand {
  display:flex; align-items:center; gap:10px;
  font-weight:800; font-size:17px; color:#fff;
  letter-spacing:1px; cursor:pointer; text-decoration:none;
}
.brand .logo-dot {
  width:32px; height:32px; border-radius:50%;
  background: linear-gradient(135deg, var(--sp-red), var(--sp-red-dark));
  display:flex; align-items:center; justify-content:center;
  box-shadow: 0 0 15px rgba(220,38,38,0.3);
}
.brand .logo-dot svg { width:18px; height:18px; fill:#fff; }

.nav-right { display:flex; align-items:center; gap:10px; font-size:13px; }
.user-name { color:#fff; font-weight:600; }

.nav-btn {
  padding:7px 14px; border-radius:8px; font-size:12px; cursor:pointer;
  border:1px solid rgba(75,85,99,0.4); background:transparent; color:var(--sp-text-muted);
  transition: all 0.25s; text-decoration:none; font-weight:500;
}
.nav-btn:hover { border-color:rgba(220,38,38,0.5); color:var(--sp-red-light); }
.nav-btn.danger { border-color:rgba(220,38,38,0.3); color:var(--sp-red-light); }
.nav-btn.danger:hover { background:rgba(220,38,38,0.1); border-color:var(--sp-red); }

/* ── 用户信息区（首页用） ── */
.user-info {
  display:flex; align-items:center; gap:10px; font-size:13px; color:var(--sp-text-muted);
}
.user-info .name { color:#fff; font-weight:600; }

/* ══════ 徽章 ══════ */
.badge {
  display:inline-block; padding:3px 10px; border-radius:20px;
  font-size:10px; font-weight:700; letter-spacing:0.5px; text-transform:uppercase;
}
.badge-admin, .badge.admin { background:rgba(220,38,38,0.2); color:var(--sp-red-light); border:1px solid rgba(220,38,38,0.3); }
.badge-user, .badge.user { background:rgba(37,99,235,0.15); color:var(--sp-blue-light); border:1px solid rgba(37,99,235,0.25); }

/* ══════ 主容器 ══════ */
.container { max-width:1200px; margin:0 auto; padding:24px 20px; position:relative; z-index:1; }

/* ══════ 页面标题 ══════ */
.page-header {
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom:24px; flex-wrap:wrap; gap:16px;
}
.page-header h1, .page-title {
  font-size:24px; font-weight:800; letter-spacing:0.5px;
  background: linear-gradient(135deg, #fff, var(--sp-red-light));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent;
  background-clip:text;
}

/* ══════ 区域标题 ══════ */
.section-title {
  font-size:15px; font-weight:700; margin-bottom:16px; color:#fff;
  display:flex; align-items:center; gap:10px;
  letter-spacing:0.5px;
}
.section-title::after {
  content:''; flex:1; height:1px;
  background: linear-gradient(90deg, rgba(220,38,38,0.3), transparent);
}

/* ══════ KPI 统计卡片 ══════ */
.kpi-row {
  display:grid; grid-template-columns:repeat(auto-fit, minmax(160px, 1fr)); gap:12px; margin-bottom:24px;
}
.kpi-card {
  background: var(--sp-card); border:1px solid var(--sp-card-border);
  border-radius:14px; padding:16px 18px; position:relative; overflow:hidden;
  transition: all 0.3s;
}
.kpi-card:hover { border-color:rgba(220,38,38,0.3); transform:translateY(-2px); }
.kpi-card::before { content:''; position:absolute; top:0; left:0; right:0; height:2px; }
.kpi-card.c-red::before { background:linear-gradient(90deg,#dc2626,#ef4444); }
.kpi-card.c-blue::before { background:linear-gradient(90deg,#2563eb,#3b82f6); }
.kpi-card.c-green::before { background:linear-gradient(90deg,#16a34a,#22c55e); }
.kpi-card.c-amber::before { background:linear-gradient(90deg,#d97706,#f59e0b); }
.kpi-card.c-purple::before { background:linear-gradient(90deg,#7c3aed,#8b5cf6); }
.kpi-lbl { font-size:10px; color:var(--sp-text-dim); text-transform:uppercase; letter-spacing:0.5px; margin-bottom:4px; }
.kpi-val { font-size:28px; font-weight:800; color:#fff; line-height:1; }
.kpi-sub { font-size:10px; color:var(--sp-text-faint); margin-top:4px; }
.kpi-ico { position:absolute; right:12px; top:12px; font-size:22px; opacity:0.15; }

/* ══════ 面板/卡片 通用 ══════ */
.panel-section {
  background: var(--sp-card); border:1px solid var(--sp-card-border);
  border-radius:var(--sp-radius-lg); padding:20px; margin-bottom:20px;
  position:relative; overflow:hidden;
}
.panel-section::before {
  content:''; position:absolute; top:0; left:0; right:0; height:2px;
  background: linear-gradient(90deg, #dc2626, #7c3aed, #2563eb);
}

/* ══════ 按钮 ══════ */
.btn-primary {
  padding:10px 20px; border-radius:10px; font-size:13px; font-weight:600; cursor:pointer;
  border:none; transition:all 0.25s; display:inline-flex; align-items:center; gap:6px;
  background:linear-gradient(135deg,var(--sp-red),var(--sp-red-dark)); color:#fff;
  box-shadow:0 4px 20px rgba(220,38,38,0.3);
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 28px rgba(220,38,38,0.4); }
.btn-primary:active { transform:translateY(0); }

.btn-secondary {
  padding:10px 20px; border-radius:10px; font-size:13px; font-weight:600; cursor:pointer;
  border:1px solid rgba(75,85,99,0.3); background:rgba(75,85,99,0.2); color:var(--sp-text-muted);
  transition:all 0.25s; display:inline-flex; align-items:center; gap:6px;
}
.btn-secondary:hover { border-color:rgba(220,38,38,0.4); color:var(--sp-red-light); }

/* ══════ 表单 ══════ */
.form-group { margin-bottom:16px; }
.form-label {
  display:block; font-size:11px; color:var(--sp-text-dim); margin-bottom:6px;
  text-transform:uppercase; letter-spacing:0.5px; font-weight:600;
}
.form-input, .form-select, .form-textarea {
  width:100%; padding:10px 14px; background:var(--sp-input-bg);
  border:1px solid var(--sp-input-border); border-radius:10px;
  color:var(--sp-text); font-size:13px; font-family:inherit; transition:border-color 0.2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline:none; border-color:rgba(220,38,38,0.5);
  box-shadow: 0 0 0 3px rgba(220,38,38,0.1);
}
.form-input::placeholder, .form-textarea::placeholder { color:var(--sp-text-faint); }
.form-textarea { min-height:80px; resize:vertical; }
.form-select { appearance:none; cursor:pointer; }
.form-select option { background:#1a1a2e; }

/* ══════ 搜索框 ══════ */
.search-input {
  flex:1; padding:12px 18px; background:rgba(10,10,18,0.8);
  border:1px solid var(--sp-input-border); border-radius:var(--sp-radius);
  color:var(--sp-text); font-size:14px; transition:border-color 0.2s; font-family:inherit;
}
.search-input:focus { outline:none; border-color:rgba(220,38,38,0.5); box-shadow:0 0 20px rgba(220,38,38,0.08); }
.search-input::placeholder { color:var(--sp-text-faint); }

/* ══════ Toast 提示 ══════ */
.toast {
  position:fixed; bottom:30px; left:50%; transform:translateX(-50%) translateY(80px);
  padding:12px 24px; border-radius:var(--sp-radius); font-size:13px; font-weight:600;
  z-index:500; transition:transform 0.4s cubic-bezier(0.25,0.8,0.25,1);
  backdrop-filter:blur(10px);
}
.toast.show { transform:translateX(-50%) translateY(0); }
.toast.success { background:rgba(22,163,74,0.9); color:#fff; box-shadow:0 8px 30px rgba(22,163,74,0.3); }
.toast.error { background:rgba(220,38,38,0.9); color:#fff; box-shadow:0 8px 30px rgba(220,38,38,0.3); }
.toast.info { background:rgba(37,99,235,0.9); color:#fff; box-shadow:0 8px 30px rgba(37,99,235,0.3); }

/* ══════ 消息提示条 ══════ */
.msg {
  padding:10px 14px; border-radius:10px; font-size:13px;
  margin-bottom:16px; display:none;
}
.msg.success {
  display:block;
  background:rgba(34,197,94,0.08); border:1px solid rgba(34,197,94,0.2);
  border-left:3px solid var(--sp-green); color:var(--sp-green-light);
}
.msg.error {
  display:block;
  background:rgba(220,38,38,0.08); border:1px solid rgba(220,38,38,0.2);
  border-left:3px solid var(--sp-red); color:var(--sp-red-light);
}

/* ══════ 弹窗 ══════ */
.modal-overlay {
  position:fixed; inset:0; background:rgba(0,0,0,.65); z-index:300;
  display:flex; align-items:center; justify-content:center;
  opacity:0; pointer-events:none; transition:opacity .3s;
}
.modal-overlay.open, .modal-overlay.show {
  opacity:1; pointer-events:auto;
}
.modal {
  background:#0f0f1a; border:1px solid rgba(75,85,99,0.3);
  border-radius:var(--sp-radius-xl); width:500px; max-width:95vw;
  max-height:90vh; overflow-y:auto;
  box-shadow:0 20px 60px rgba(0,0,0,.5);
  transform:translateY(20px); transition:transform .3s;
  position:relative;
}
.modal-overlay.open .modal, .modal-overlay.show .modal { transform:translateY(0); }
.modal::before {
  content:''; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg,#dc2626,#7c3aed,#2563eb);
  border-radius:20px 20px 0 0;
}
.modal-header {
  padding:20px 24px; border-bottom:1px solid rgba(75,85,99,0.2);
  display:flex; align-items:center; justify-content:space-between;
}
.modal-header h3 {
  font-size:16px; font-weight:700; color:#fff;
}
.modal-body { padding:18px 24px; }
.modal-footer {
  padding:14px 24px; border-top:1px solid rgba(75,85,99,0.2);
  display:flex; gap:8px; justify-content:flex-end;
}

/* ══════ 关闭按钮 ══════ */
.close-btn {
  width:32px; height:32px; border-radius:8px;
  border:1px solid rgba(75,85,99,0.3);
  background:transparent; color:var(--sp-text-muted); font-size:16px; cursor:pointer;
  display:flex; align-items:center; justify-content:center; transition:all 0.2s;
}
.close-btn:hover { border-color:#ef4444; color:#ef4444; }

/* ══════ 底部 ══════ */
.footer {
  text-align:center; padding:20px; color:var(--sp-text-dark); font-size:11px;
  border-top:1px solid rgba(75,85,99,0.15); letter-spacing:0.5px;
  position:relative; z-index:1;
}

/* ══════ 空状态 & 加载 ══════ */
.loading-state, .empty-state { text-align:center; padding:50px 20px; color:var(--sp-text-faint); }
.loading-state .spinner {
  width:40px; height:40px; border:3px solid rgba(220,38,38,0.1);
  border-top-color:var(--sp-red); border-radius:50%;
  animation:spin 0.8s linear infinite; margin:0 auto 16px;
}
@keyframes spin { to { transform:rotate(360deg); } }
.empty-state .icon { font-size:48px; margin-bottom:12px; opacity:0.5; }

/* ══════ 标签 ══════ */
.tag {
  display:inline-block; margin-top:12px; padding:3px 10px;
  border-radius:20px; font-size:10px; font-weight:600;
  letter-spacing:0.3px;
}
.tag.soon { background:rgba(251,191,36,0.12); color:#fbbf24; border:1px solid rgba(251,191,36,0.2); }
.tag.admin { background:rgba(220,38,38,0.12); color:var(--sp-red-light); border:1px solid rgba(220,38,38,0.2); }
.tag.live { background:rgba(34,197,94,0.12); color:var(--sp-green-light); border:1px solid rgba(34,197,94,0.2); }

/* ══════ 状态点 ══════ */
.status { display:flex; align-items:center; gap:6px; }
.status .dot { width:8px; height:8px; border-radius:50%; }
.status .dot.on { background:var(--sp-green); box-shadow:0 0 6px rgba(34,197,94,0.4); }
.status .dot.off { background:#ef4444; box-shadow:0 0 6px rgba(239,68,68,0.3); }

/* ══════ 手机端导航适配 ══════ */
.mobile-menu { display:none; }
@media (max-width: 640px) {
  .user-info .uname-wrap { display:none; }
  .user-info .badge { display:none; }
  .user-info .admin-link-btn { display:none; }
  .mobile-menu { display:flex; align-items:center; gap:8px; }
}

/* ══════ 响应式基础 ══════ */
@media (max-width: 900px) {
  .kpi-row { grid-template-columns:repeat(3,1fr); }
}
@media (max-width: 640px) {
  .kpi-row { grid-template-columns:repeat(2,1fr); }
  .container { padding:16px 12px; }
  .navbar { padding:0 12px; height:52px; }
  .brand { font-size:15px; }
  .brand .logo-dot { width:28px; height:28px; }
  .brand .logo-dot svg { width:15px; height:15px; }
  .page-header h1, .page-title { font-size:18px; }
}