/* ======================================
   技能大赛训练考勤系统 - 优化版样式
   ====================================== */

/* --- Reset & Base --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background:#f0f2f5;color:#333;min-height:100vh;line-height:1.6;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale
}
a{color:#667eea;text-decoration:none}
a:hover{text-decoration:underline}

/* --- Variables --- */
:root{
  --primary:#667eea;
  --primary-dark:#5a6fd6;
  --secondary:#764ba2;
  --success:#27ae60;
  --warning:#f39c12;
  --danger:#e74c3c;
  --info:#3498db;
  --bg:#f0f2f5;
  --card-bg:#fff;
  --text:#333;
  --text-secondary:#666;
  --text-muted:#999;
  --border:#eee;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg:0 4px 20px rgba(0,0,0,0.12);
  --animation-duration:.3s;
}

/* --- Animations --- */
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes shimmer{0%{background-position:-200px 0}100%{background-position:calc(200px + 100%) 0}}
@keyframes bounceIn{0%{opacity:0;transform:scale(.9)}50%{transform:scale(1.02)}100%{opacity:1;transform:scale(1)}}
.animate-in{animation:fadeIn var(--animation-duration) ease-out}
.animate-slide-up{animation:slideUp .4s ease-out}

/* --- Header --- */
.header{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;padding:18px 16px;position:relative;overflow:hidden
}
.header::after{
  content:'';position:absolute;top:-50%;right:-20%;width:200px;height:200px;
  background:rgba(255,255,255,0.05);border-radius:50%;pointer-events:none
}
.header h1{font-size:18px;font-weight:700;margin-bottom:2px;letter-spacing:.5px}
.header p{font-size:11px;opacity:.85;font-weight:400}
.header .user-badge{
  position:absolute;right:14px;top:50%;transform:translateY(-50%);
  background:rgba(255,255,255,0.2);backdrop-filter:blur(4px);
  border-radius:20px;padding:5px 12px;font-size:12px;cursor:pointer;
  display:flex;align-items:center;gap:4px;transition:background .2s;
  max-width:45%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis
}
.header .user-badge:hover{background:rgba(255,255,255,0.3)}
.header .user-badge .avatar-dot{
  width:6px;height:6px;border-radius:50%;background:#4ade80;display:inline-block;flex-shrink:0
}

/* --- Tab Bar --- */
.tabs{
  display:flex;background:#fff;border-bottom:1px solid var(--border);
  overflow-x:auto;position:sticky;top:0;z-index:100;
  -webkit-overflow-scrolling:touch;scrollbar-width:none
}
.tabs::-webkit-scrollbar{display:none}
.tab{
  flex-shrink:0;padding:12px 14px;font-size:13px;cursor:pointer;
  border-bottom:2.5px solid transparent;transition:all .2s;
  color:var(--text-secondary);white-space:nowrap;position:relative;
  font-weight:500;user-select:none;-webkit-tap-highlight-color:transparent
}
.tab:hover{color:var(--primary);background:rgba(102,126,234,0.04)}
.tab:active{background:rgba(102,126,234,0.08)}
.tab.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:600}

/* --- Content Area --- */
.content{padding:12px;max-width:700px;margin:0 auto;padding-bottom:100px}
.content>div{animation:fadeIn .25s ease-out}

/* --- Card --- */
.card{
  background:var(--card-bg);border-radius:var(--radius);
  padding:16px;margin-bottom:12px;
  box-shadow:var(--shadow);transition:box-shadow .2s;
  border:1px solid rgba(0,0,0,0.04)
}
.card:hover{box-shadow:0 4px 12px rgba(0,0,0,0.08)}
.card h3{font-size:15px;font-weight:600;margin-bottom:12px;color:var(--text);display:flex;align-items:center;gap:6px}
.card .card-badge{
  font-size:10px;background:#eef1ff;color:var(--primary);
  padding:1px 8px;border-radius:10px;font-weight:500;margin-left:auto
}

/* --- Loading States --- */
.loading{text-align:center;color:var(--text-muted);padding:20px;font-size:13px}
.skeleton{
  background:linear-gradient(90deg,#f0f0f0 25%,#e8e8e8 50%,#f0f0f0 75%);
  background-size:200px 100%;animation:shimmer 1.5s infinite;
  border-radius:6px;height:16px;margin:8px 0
}
.loading-spinner{
  width:32px;height:32px;border:3px solid #e0e0e0;border-top-color:var(--primary);
  border-radius:50%;animation:spin .8s linear infinite;margin:12px auto
}
.loading-text{color:var(--text-muted);font-size:13px;margin-top:8px}

/* --- Forms --- */
select,input[type="text"],input[type="date"],input[type="password"]{
  width:100%;padding:10px 12px;border:1.5px solid #e0e0e0;
  border-radius:var(--radius-sm);font-size:14px;margin:4px 0;
  transition:border-color .2s,box-shadow .2s;background:#fff;color:var(--text);
  outline:none;font-family:inherit
}
select:focus,input:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(102,126,234,0.12)
}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23999' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:30px}

/* --- Buttons --- */
button{
  padding:10px 18px;border-radius:var(--radius-sm);font-size:14px;
  font-weight:600;border:none;cursor:pointer;transition:all .2s;
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  font-family:inherit;user-select:none;-webkit-tap-highlight-color:transparent
}
button:active{transform:scale(.97)}
button:disabled{opacity:.6;cursor:not-allowed;transform:none}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}
.btn-primary:hover:not(:disabled){box-shadow:0 4px 12px rgba(102,126,234,0.35)}
.btn-green{background:var(--success);color:#fff}
.btn-green:hover:not(:disabled){box-shadow:0 4px 12px rgba(39,174,96,0.35)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover:not(:disabled){box-shadow:0 4px 12px rgba(231,76,60,0.3)}
.btn-secondary{background:#f0f0f0;color:var(--text)}
.btn-secondary:hover:not(:disabled){background:#e5e5e5}
.btn-outline{background:transparent;border:1.5px solid var(--primary);color:var(--primary)}
.btn-outline:hover:not(:disabled){background:rgba(102,126,234,0.06)}
.btn-sm{padding:6px 12px;font-size:12px;border-radius:6px;width:auto;display:inline-flex}
.btn-block{width:100%;display:flex}
.btn-icon{width:34px;height:34px;padding:0;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:14px}

/* --- Login Page --- */
.login-page{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:100vh;padding:20px;
  background:linear-gradient(135deg,#667eea,#764ba2,#6c5ce7);
  position:relative;overflow:hidden
}
.login-page::before{
  content:'';position:absolute;top:-30%;left:-20%;width:300px;height:300px;
  background:rgba(255,255,255,0.04);border-radius:50%;pointer-events:none
}
.login-page::after{
  content:'';position:absolute;bottom:-20%;right:-10%;width:250px;height:250px;
  background:rgba(255,255,255,0.03);border-radius:50%;pointer-events:none
}
.login-box{
  background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);
  border-radius:20px;padding:40px 28px;width:100%;max-width:380px;
  text-align:center;box-shadow:0 8px 32px rgba(0,0,0,0.18);
  animation:slideUp .5s ease-out;position:relative;z-index:1
}
.login-logo{font-size:56px;margin-bottom:8px;animation:bounceIn .6s ease-out}
.login-title{font-size:22px;font-weight:800;color:var(--text);margin-bottom:4px;letter-spacing:-.5px}
.login-sub{font-size:13px;color:var(--text-muted);margin-bottom:24px}
.login-input{
  border:2px solid #e0e0e0;border-radius:var(--radius);padding:14px 16px;
  font-size:16px;text-align:center;margin-bottom:14px;transition:border-color .2s;
  background:#fafafa;letter-spacing:1px
}
.login-input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(102,126,234,0.1)}
.login-btn{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;border:none;border-radius:var(--radius);padding:14px;
  font-size:16px;font-weight:700;width:100%;cursor:pointer;
  transition:all .2s;letter-spacing:.5px
}
.login-btn:hover:not(:disabled){box-shadow:0 6px 16px rgba(102,126,234,0.35);transform:translateY(-1px)}
.login-btn:active{transform:translateY(0)}
.login-btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.login-error{color:var(--danger);font-size:13px;margin-top:10px;min-height:20px}

/* --- Info Grid --- */
.info-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.info-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.info-box{
  background:linear-gradient(135deg,#f8f9ff,#f0f2ff);
  padding:14px 10px;border-radius:var(--radius-sm);text-align:center
}
.info-box .info-num{font-size:26px;font-weight:800;display:block;line-height:1.2}
.info-box .info-label{font-size:11px;color:var(--text-muted);margin-top:2px;display:block}

/* --- Action Grid --- */
.action-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(80px,1fr));gap:10px
}
.action-btn{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:#f8f9fa;border-radius:var(--radius);padding:14px 8px;
  cursor:pointer;transition:all .2s;gap:6px;user-select:none;
  -webkit-tap-highlight-color:transparent
}
.action-btn:hover{background:#eef1ff;transform:translateY(-2px);box-shadow:0 4px 8px rgba(102,126,234,0.1)}
.action-btn:active{transform:translateY(0)}
.action-btn .icon{font-size:26px;display:block}
.action-btn .label{font-size:12px;color:var(--text-secondary);font-weight:500}

/* --- List Items --- */
.list-item{
  display:flex;align-items:center;padding:8px 0;border-bottom:1px solid var(--border);
  font-size:13px;gap:8px;transition:background .2s
}
.list-item:last-child{border-bottom:none}
.list-item:hover{background:rgba(0,0,0,0.01)}
.user-avatar{
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;text-align:center;line-height:34px;font-size:13px;
  flex-shrink:0;font-weight:600
}
.user-info{flex:1;min-width:0}
.user-name{font-size:14px;font-weight:600;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user-role{font-size:11px;color:var(--text-muted);display:block}
.tag{
  display:inline-block;background:#eef1ff;color:var(--primary);
  border-radius:4px;padding:2px 8px;font-size:10px;font-weight:500;
  white-space:nowrap
}
.tag-success{background:#e8f5e9;color:var(--success)}
.tag-warning{background:#fff8e1;color:var(--warning)}
.tag-danger{background:#fce4ec;color:var(--danger)}

/* --- Toast --- */
.toast{
  position:fixed;bottom:80px;left:50%;transform:translateX(-50%) translateY(0);
  background:rgba(0,0,0,0.85);backdrop-filter:blur(8px);
  color:#fff;padding:10px 20px;border-radius:10px;
  font-size:13px;z-index:9999;display:none;white-space:nowrap;
  box-shadow:0 4px 12px rgba(0,0,0,0.2);
  animation:slideUp .3s ease-out;max-width:90vw
}

/* --- Modal --- */
.modal-overlay{
  position:fixed;top:0;left:0;right:0;bottom:0;
  background:rgba(0,0,0,0.45);backdrop-filter:blur(4px);
  display:none;align-items:center;justify-content:center;
  z-index:9998;animation:fadeIn .2s ease-out
}
.modal{
  background:#fff;border-radius:16px;padding:24px;
  width:92%;max-width:440px;max-height:85vh;overflow-y:auto;
  box-shadow:0 12px 40px rgba(0,0,0,0.2);animation:slideUp .3s ease-out
}
.modal h3{font-size:17px;font-weight:700;margin-bottom:16px;color:var(--text)}
.modal-actions{display:flex;gap:10px;margin-top:16px}
.modal-actions button{flex:1}

/* --- Table (Schedule) --- */
table{width:100%;border-collapse:separate;border-spacing:1px;font-size:11px}
td,th{border:1px solid #e8e8e8;padding:3px;text-align:center}
th{background:#f5f5ff;color:var(--primary);font-weight:600}
.sch-cell{padding:4px 2px;text-align:center;cursor:pointer;vertical-align:top;min-width:56px;height:42px;transition:all .15s}
.sch-cell.empty{color:#ccc;background:#fafafa;font-size:14px}
.sch-cell.empty:hover{background:#eef1ff;color:var(--primary)}
.sch-cell.occupied{background:#f0f4ff;color:#333;font-size:10px}
.sch-cell.occupied:hover{background:#e8eeff}

/* --- Notifications --- */
.notif-item{cursor:pointer;transition:opacity .2s}
.notif-item:hover{background:rgba(0,0,0,0.01)}

/* --- Checkbox Style --- */
input[type="checkbox"]{
  width:16px;height:16px;accent-color:var(--primary);
  cursor:pointer;flex-shrink:0
}

/* --- Info Badge --- */
.info-badge{font-size:12px;color:var(--text-muted);margin-bottom:10px;display:block}

/* --- Text Utilities --- */
.text-primary{color:var(--primary)}
.text-success{color:var(--success)}
.text-warning{color:var(--warning)}
.text-danger{color:var(--danger)}
.text-muted{color:var(--text-muted)}
.text-center{text-align:center}
.flex{display:flex}
.flex-1{flex:1}
.flex-center{align-items:center;justify-content:center}
.flex-between{justify-content:space-between}
.flex-col{flex-direction:column}
.flex-wrap{flex-wrap:wrap}
.gap-4{gap:4px}
.gap-6{gap:6px}
.gap-8{gap:8px}
.gap-10{gap:10px}
.mt-4{margin-top:4px}
.mt-8{margin-top:8px}
.mt-12{margin-top:12px}
.mb-8{margin-bottom:8px}
.p-4{padding:4px}
.p-8{padding:8px}
.hidden{display:none!important}

/* --- Stat Rows --- */
.stat-row{display:flex;justify-content:space-around;text-align:center}
.stat-num{font-size:28px;font-weight:800;display:block;line-height:1.2}
.stat-label{font-size:12px;color:var(--text-muted);margin-top:4px;display:block}

/* --- Footer --- */
.footer{
  text-align:center;padding:20px 16px;font-size:11px;
  color:var(--text-muted);background:var(--bg);border-top:1px solid var(--border)
}
.footer a{color:var(--text-muted)}
.footer a:hover{color:var(--primary)}

/* --- Chart Support --- */
.chart-container{position:relative;width:100%;overflow-x:auto;padding:8px 0}
canvas{max-width:100%;height:auto;border-radius:var(--radius-sm)}

/* --- Approval Cards --- */
.approval-card{
  margin:10px 0;padding:16px;border:1px solid var(--border);
  border-radius:var(--radius);transition:box-shadow .2s
}
.approval-card:hover{box-shadow:var(--shadow)}

/* --- Responsive --- */
@media(max-width:480px){
  .header{padding:14px 12px}
  .header h1{font-size:16px}
  .tabs .tab{padding:10px 10px;font-size:12px}
  .content{padding:10px;padding-bottom:90px}
  .card{padding:14px;border-radius:10px}
  .info-grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .modal{padding:18px;width:94%}
  .login-box{padding:32px 20px}
  .login-title{font-size:20px}
  .action-grid{grid-template-columns:repeat(auto-fill,minmax(70px,1fr));gap:8px}
  .sch-cell{min-width:44px;height:36px;font-size:9px}
}