/* ==========================================
   打卡系统 V2 — H5 响应式样式
   设计：渐变蓝紫 + iOS 风格卡片 + 底部导航
   ========================================== */
*{margin:0;padding:0;box-sizing:border-box}

:root{
  --primary:#4F6EF7;
  --primary-dark:#3D56D4;
  --primary-light:#EEF1FE;
  --gradient:linear-gradient(135deg, #4F6EF7 0%, #7B6CF6 50%, #A855F7 100%);
  --success:#10B981;
  --warning:#F59E0B;
  --danger:#EF4444;
  --text:#1F2937;
  --text2:#6B7280;
  --text3:#9CA3AF;
  --bg:#F3F4F6;
  --card:#FFFFFF;
  --border:#E5E7EB;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 4px 12px rgba(0,0,0,.08);
  --shadow-lg:0 10px 40px rgba(0,0,0,.1);
  --radius:14px;
  --radius-sm:10px;
  --bottom-nav-h:64px;
}

body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Hiragino Sans GB','Microsoft YaHei',sans-serif;
  background:var(--bg); color:var(--text);
  -webkit-font-smoothing:antialiased;
  min-height:100vh; min-height:100dvh;
  padding-bottom:var(--bottom-nav-h);
  overflow-x:hidden;
}

/* ─── Login Page ─── */
.login-page{
  display:flex; justify-content:center; align-items:center;
  min-height:100vh; min-height:100dvh;
  padding:20px;
}
.login-card{
  background:var(--card); border-radius:20px; padding:36px 28px;
  width:100%; max-width:400px;
  box-shadow:var(--shadow-lg);
  text-align:center;
}
.login-card .logo{
  width:64px; height:64px; border-radius:18px;
  background:var(--gradient);
  display:flex; align-items:center; justify-content:center;
  margin:0 auto 16px;
  font-size:32px; color:#fff;
  box-shadow:0 8px 24px rgba(79,110,247,.35);
}
.login-card h1{font-size:24px; font-weight:700; margin-bottom:4px}
.login-card .sub{font-size:13px; color:var(--text3); margin-bottom:24px}
.login-tabs{display:flex; gap:0; margin-bottom:24px; background:var(--bg); border-radius:10px; padding:3px}
.login-tabs .tab{flex:1; padding:10px; border:none; background:transparent; font-size:14px; color:var(--text2); border-radius:8px; cursor:pointer; transition:.2s; font-weight:500}
.login-tabs .tab.active{background:var(--card); color:var(--primary); box-shadow:0 1px 3px rgba(0,0,0,.08); font-weight:600}
.login-panel{text-align:left}
.login-panel.hidden{display:none}
.field-label{display:block; font-size:13px; color:var(--text2); margin-bottom:6px; font-weight:500}
.login-panel input{
  width:100%; padding:12px 14px; border:1.5px solid var(--border); border-radius:var(--radius-sm);
  font-size:15px; outline:none; transition:.2s;
  background:#FAFBFC;
}
.login-panel input:focus{border-color:var(--primary); background:#fff; box-shadow:0 0 0 3px rgba(79,110,247,.1)}
.pwd-wrap{position:relative}
.pwd-wrap input{padding-right:44px}
.pwd-wrap .eye{position:absolute; right:12px; top:50%; transform:translateY(-50%); font-size:18px; cursor:pointer; color:var(--text3); user-select:none}
.login-panel .full-btn{
  width:100%; padding:13px; margin-top:16px; border:none; border-radius:var(--radius-sm);
  background:var(--gradient); color:#fff; font-size:16px; font-weight:600;
  cursor:pointer; transition:.2s;
  box-shadow:0 4px 12px rgba(79,110,247,.3);
}
.login-panel .full-btn:hover{transform:translateY(-1px); box-shadow:0 6px 20px rgba(79,110,247,.4)}
.login-panel .full-btn:active{transform:translateY(0)}
.login-panel .full-btn:disabled{opacity:.5; transform:none; cursor:not-allowed}
.err-msg{text-align:center; font-size:13px; color:var(--danger); min-height:20px; margin-top:10px}
.hint{text-align:center; font-size:12px; color:var(--text3); margin-top:16px}

/* ─── Top Navbar ─── */
.navbar{
  display:flex; justify-content:space-between; align-items:center;
  padding:12px 20px; background:rgba(255,255,255,.85);
  backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
  position:sticky; top:0; z-index:100;
  border-bottom:1px solid rgba(0,0,0,.05);
}
.navbar h2{font-size:18px; font-weight:700; background:var(--gradient); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text}
.navbar .nav-right{display:flex; align-items:center; gap:12px; font-size:14px}
.navbar .nav-right span{color:var(--text2)}

/* ─── Buttons ─── */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  padding:8px 18px; border:none; border-radius:8px; font-size:14px; font-weight:500;
  cursor:pointer; transition:.15s; white-space:nowrap;
}
.btn.primary{background:var(--primary); color:#fff}
.btn.primary:hover{background:var(--primary-dark)}
.btn.success{background:var(--success); color:#fff}
.btn.danger{background:var(--danger); color:#fff}
.btn.warn{background:var(--warning); color:#fff}
.btn.outline{background:transparent; border:1.5px solid var(--border); color:var(--text2)}
.btn.small{padding:5px 12px; font-size:12px; border-radius:6px}
.btn:disabled{opacity:.5; cursor:not-allowed}

/* ─── Bottom Navigation ─── */
.bottom-nav{
  position:fixed; bottom:0; left:0; right:0;
  height:var(--bottom-nav-h);
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--border);
  display:flex; align-items:center; justify-content:space-around;
  z-index:200;
  padding-bottom:env(safe-area-inset-bottom);
}
.bottom-nav .nav-item{
  display:flex; flex-direction:column; align-items:center; gap:2px;
  border:none; background:none; cursor:pointer; padding:6px 10px;
  color:var(--text3); font-size:11px; font-weight:500;
  transition:.2s; min-width:56px;
}
.bottom-nav .nav-item .icon{font-size:22px; line-height:1; transition:.2s}
.bottom-nav .nav-item.active{color:var(--primary)}
.bottom-nav .nav-item.active .icon{transform:scale(1.1)}

/* ─── Page Container ─── */
.page{display:none; padding:16px 16px 24px; animation:fadeIn .25s ease}
.page.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

/* ─── Cards ─── */
.card{
  background:var(--card); border-radius:var(--radius); padding:18px;
  box-shadow:var(--shadow); margin-bottom:14px;
}
.card-header{display:flex; justify-content:space-between; align-items:center; margin-bottom:14px}
.card-header h3{font-size:16px; font-weight:700}
.card-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:12px}

/* ─── Form Fields ─── */
.field{display:flex; flex-direction:column; gap:5px; margin-bottom:12px}
.field label{font-size:13px; color:var(--text2); font-weight:500}
.field input,.field select,.field textarea{
  padding:10px 12px; border:1.5px solid var(--border); border-radius:8px;
  font-size:14px; font-family:inherit; outline:none; transition:.2s;
  background:#FAFBFC; resize:vertical;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary); background:#fff;
  box-shadow:0 0 0 3px rgba(79,110,247,.1);
}

/* ─── Status Badges ─── */
.badge{
  display:inline-block; padding:3px 10px; border-radius:20px; font-size:12px; font-weight:600
}
.badge.pending{background:#FEF3C7; color:#D97706}
.badge.approved{background:#D1FAE5; color:#059669}
.badge.rejected{background:#FEE2E2; color:#DC2626}
.badge.info{background:var(--primary-light); color:var(--primary)}

/* ─── Member Grid (admin) ─── */
.member-grid{display:grid; grid-template-columns:repeat(auto-fill,minmax(160px,1fr)); gap:10px}
.member-card{
  background:var(--card); border-radius:var(--radius-sm); padding:16px;
  box-shadow:var(--shadow); cursor:pointer; transition:.15s;
  text-align:center; border:2px solid transparent;
}
.member-card:hover{box-shadow:var(--shadow-md); transform:translateY(-1px)}
.member-card.selected{border-color:var(--primary); background:var(--primary-light)}
.member-card .avatar{
  width:44px; height:44px; border-radius:50%;
  background:var(--gradient); color:#fff; display:flex; align-items:center; justify-content:center;
  margin:0 auto 10px; font-size:18px; font-weight:700;
}
.member-card .name{font-size:15px; font-weight:600; margin-bottom:2px}
.member-card .eid{font-size:12px; color:var(--text3)}

/* ─── Checkin Hero ─── */
.checkin-hero{
  background:var(--gradient); border-radius:var(--radius); padding:28px 24px;
  color:#fff; text-align:center; margin-bottom:16px;
  box-shadow:0 8px 32px rgba(79,110,247,.3);
}
.checkin-hero .time{font-size:48px; font-weight:200; line-height:1; margin:8px 0}
.checkin-hero .date-str{font-size:14px; opacity:.8}
.checkin-hero .status-badge{margin-top:12px; display:inline-block; padding:4px 14px; border-radius:20px; font-size:13px; font-weight:600; background:rgba(255,255,255,.2)}
.checkin-btn{
  display:block; width:100%; max-width:280px; margin:20px auto 0;
  padding:16px; border:none; border-radius:50px;
  background:rgba(255,255,255,.95); color:var(--primary);
  font-size:18px; font-weight:700; cursor:pointer;
  box-shadow:0 4px 16px rgba(0,0,0,.15); transition:.2s;
}
.checkin-btn:hover{transform:scale(1.03)}
.checkin-btn:active{transform:scale(.97)}
.checkin-btn:disabled{opacity:.5; transform:none; cursor:not-allowed}

/* ─── Leave type select (chips) ─── */
.leave-types{display:flex; flex-wrap:wrap; gap:8px; margin-bottom:12px}
.leave-chip{
  padding:8px 16px; border-radius:20px; border:1.5px solid var(--border);
  background:var(--card); font-size:13px; cursor:pointer; transition:.15s;
  font-weight:500; color:var(--text2);
}
.leave-chip.active{background:var(--primary-light); border-color:var(--primary); color:var(--primary); font-weight:600}
.leave-chip:hover{border-color:var(--primary)}

/* ─── Record Lists ─── */
.record-list{display:flex; flex-direction:column; gap:10px}
.record-item{
  background:var(--card); border-radius:var(--radius-sm); padding:14px 16px;
  box-shadow:var(--shadow); display:flex; justify-content:space-between; align-items:center;
}
.record-item .left{flex:1}
.record-item .title{font-size:15px; font-weight:600; margin-bottom:2px}
.record-item .meta{font-size:12px; color:var(--text3)}
.record-item .right{display:flex; gap:6px}

/* ─── Year-Month picker ─── */
.ym-picker{display:flex; gap:8px; align-items:center}
.ym-picker select{padding:6px 10px; border-radius:6px; border:1.5px solid var(--border); font-size:13px; background:#fff}

/* ─── Modal ─── */
.modal-overlay{
  display:none; position:fixed; inset:0; background:rgba(0,0,0,.35);
  z-index:300; align-items:flex-end; justify-content:center;
}
.modal-overlay.show{display:flex}
.modal{
  background:var(--card); border-radius:20px 20px 0 0; width:100%; max-width:500px;
  max-height:85vh; overflow-y:auto; padding:24px 20px 32px;
}
.modal h3{font-size:18px; font-weight:700; margin-bottom:16px}
.modal-actions{display:flex; gap:10px; margin-top:16px}

/* ─── Toast ─── */
.toast{
  position:fixed; top:20px; left:50%; transform:translateX(-50%);
  padding:10px 24px; border-radius:24px; font-size:14px; font-weight:600;
  color:#fff; z-index:999; transition:.3s; opacity:0; pointer-events:none;
  box-shadow:var(--shadow-md);
}
.toast.show{opacity:1}
.toast.success{background:var(--success)}
.toast.error{background:var(--danger)}

/* ─── Empty State ─── */
.empty{text-align:center; padding:40px 20px; color:var(--text3)}
.empty .icon{font-size:48px; margin-bottom:12px; opacity:.5}
.empty p{font-size:14px}

/* ─── Loading ─── */
.loading{text-align:center; padding:20px; color:var(--text3)}
.spinner{
  display:inline-block; width:28px; height:28px; border:3px solid var(--border);
  border-top-color:var(--primary); border-radius:50%; animation:spin .6s linear infinite
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ─── Responsive ─── */
@media (min-width:768px){
  .card-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
  .checkin-hero{padding:36px 32px}
  .checkin-hero .time{font-size:64px}
}
@media (min-width:1024px){
  .container{max-width:800px; margin:0 auto}
  .bottom-nav{max-width:800px; left:50%; transform:translateX(-50%); border-radius:16px 16px 0 0}
}