/* ── Reset & Base ──────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --sidebar-w:240px;
  --bg:#F0F4F8;
  --surface:#FFFFFF;
  --border:#E2E8F0;
  --primary:#2563EB;
  --primary-light:#EFF6FF;
  --primary-dark:#1D4ED8;
  --success:#16A34A;
  --success-light:#F0FDF4;
  --danger:#DC2626;
  --danger-light:#FEF2F2;
  --warning:#D97706;
  --warning-light:#FFFBEB;
  --text:#0F172A;
  --text-2:#374151;
  --text-3:#64748B;
  --text-4:#94A3B8;
  --sidebar-bg:#0F172A;
  --sidebar-hover:#1E293B;
  --sidebar-active:#1E3A5F;
  --sidebar-text:#94A3B8;
  --sidebar-text-active:#60A5FA;
  --radius:10px;
  --radius-lg:14px;
  --shadow:0 1px 3px rgba(0,0,0,.07),0 1px 2px rgba(0,0,0,.05);
  --shadow-md:0 4px 12px rgba(0,0,0,.08),0 2px 4px rgba(0,0,0,.05);
}
body{font-family:'Inter',system-ui,sans-serif;background:var(--bg);color:var(--text);display:flex;min-height:100vh;font-size:14px}

/* ── Sidebar ───────────────────────────────────────────────── */
#sidebar{
  width:var(--sidebar-w);min-height:100vh;background:var(--sidebar-bg);
  display:flex;flex-direction:column;flex-shrink:0;
  position:sticky;top:0;height:100vh;overflow-y:auto;z-index:100;
}
.sb-brand{padding:20px 16px 18px;border-bottom:1px solid #1E293B;display:flex;align-items:center;gap:12px}
.sb-icon{width:38px;height:38px;background:var(--primary);border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sb-title{font-weight:700;font-size:13.5px;color:#F1F5F9;line-height:1.3}
.sb-sub{font-size:11px;color:#475569;margin-top:1px}
nav{padding:12px 10px;flex:1}
.nav-section{font-size:10px;font-weight:700;color:#334155;text-transform:uppercase;letter-spacing:.7px;padding:14px 12px 6px}
.nav-btn{
  width:100%;display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:8px;border:none;cursor:pointer;
  background:transparent;color:var(--sidebar-text);font-size:13px;font-family:inherit;
  font-weight:400;margin-bottom:2px;text-align:left;transition:background .15s,color .15s;
}
.nav-btn i{font-size:17px;flex-shrink:0;width:20px;text-align:center}
.nav-btn:hover{background:var(--sidebar-hover);color:#CBD5E1}
.nav-btn.active{background:var(--sidebar-active);color:var(--sidebar-text-active);font-weight:600}
.nav-badge{margin-left:auto;background:#1E293B;color:var(--sidebar-text-active);font-size:11px;font-weight:700;padding:2px 7px;border-radius:10px}
.sb-footer{padding:14px 16px;border-top:1px solid #1E293B;font-size:11px;color:#475569}
.sb-sms-status{display:flex;align-items:center;gap:7px;margin-top:8px;padding:6px 10px;border-radius:7px;background:#1E293B}
.sb-sms-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.sb-sms-dot.on{background:#22C55E}
.sb-sms-dot.off{background:#475569}

/* ── Main Content ──────────────────────────────────────────── */
#main{flex:1;overflow-y:auto;min-width:0}
.page{padding:28px 32px;display:none;animation:fadeIn .2s ease}
.page.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.page-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:24px;gap:16px}
.page-title{font-size:20px;font-weight:700;color:var(--text)}
.page-sub{font-size:13px;color:var(--text-3);margin-top:3px}

/* ── Stats Grid ────────────────────────────────────────────── */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
.stat-card{background:var(--surface);border-radius:var(--radius-lg);padding:18px 20px;border:1px solid var(--border);box-shadow:var(--shadow)}
.stat-head{display:flex;justify-content:space-between;align-items:flex-start}
.stat-label{font-size:12px;color:var(--text-3);font-weight:500;margin-bottom:8px}
.stat-val{font-size:28px;font-weight:800;color:var(--text);line-height:1}
.stat-sub{font-size:11px;color:var(--text-4);margin-top:6px}
.stat-ico{width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:20px}
.stat-ico.blue{background:#EFF6FF;color:#2563EB}
.stat-ico.green{background:#F0FDF4;color:#16A34A}
.stat-ico.purple{background:#F5F3FF;color:#7C3AED}
.stat-ico.orange{background:#FFF7ED;color:#EA580C}
.stat-ico.teal{background:#F0FDFA;color:#0D9488}
.stat-ico.rose{background:#FFF1F2;color:#E11D48}

/* ── Card ──────────────────────────────────────────────────── */
.card{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);overflow:hidden;box-shadow:var(--shadow)}
.card-head{padding:15px 20px;border-bottom:1px solid #F1F5F9;display:flex;justify-content:space-between;align-items:center;gap:10px}
.card-title{font-size:14px;font-weight:600;color:var(--text)}
.card-sub{font-size:12px;color:var(--text-3);margin-top:2px}

/* ── Table ─────────────────────────────────────────────────── */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th{padding:10px 14px;text-align:left;font-size:11px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px;border-bottom:1px solid var(--border);background:#F8FAFC;white-space:nowrap}
td{padding:11px 14px;border-bottom:1px solid #F8FAFC;font-size:13px;color:var(--text-2);vertical-align:middle}
tr:last-child td{border-bottom:none}
tr:hover td{background:#FAFBFC}
.mono{font-family:'Courier New',monospace;font-size:12px}
.rfid-tag{background:#F1F5F9;color:#475569;font-family:monospace;font-size:11px;padding:3px 8px;border-radius:5px;white-space:nowrap}

/* ── Badges ────────────────────────────────────────────────── */
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:20px;font-size:11px;font-weight:600;white-space:nowrap}
.badge-active{background:#F0FDF4;color:#166534}
.badge-inactive{background:#F9FAFB;color:#6B7280}
.badge-entry{background:#F0FDF4;color:#15803D}
.badge-exit{background:#FFF7ED;color:#C2410C}
.badge-sent{background:#F0FDF4;color:#15803D}
.badge-failed{background:#FEF2F2;color:#B91C1C}
.badge-pending{background:#FFFBEB;color:#B45309}
.badge-gsm{background:#EDE9FE;color:#6D28D9}
.badge-semaphore{background:#E0F2FE;color:#0369A1}
.badge-vonage{background:#FEF3C7;color:#92400E}
.badge-twilio{background:#FCE7F3;color:#9D174D}
.dot{width:6px;height:6px;border-radius:50%;display:inline-block}
.dot-green{background:#22C55E}
.dot-gray{background:#9CA3AF}
.dot-red{background:#EF4444}
.dot-yellow{background:#EAB308}

/* ── Buttons ───────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:7px;padding:8px 16px;border-radius:8px;border:none;cursor:pointer;font-size:13px;font-family:inherit;font-weight:500;transition:all .15s;white-space:nowrap;text-decoration:none}
.btn i{font-size:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{background:#fff;color:var(--text-2);border:1px solid var(--border)}
.btn-outline:hover{background:#F8FAFC;border-color:#CBD5E1}
.btn-danger{background:#FEF2F2;color:var(--danger);border:1px solid #FECACA}
.btn-danger:hover{background:#FEE2E2}
.btn-success{background:var(--success-light);color:var(--success);border:1px solid #BBF7D0}
.btn-success:hover{background:#DCFCE7}
.btn-sm{padding:5px 11px;font-size:12px}
.btn-sm i{font-size:14px}
.btn-icon{padding:7px;border-radius:7px;background:transparent;border:1px solid var(--border);color:var(--text-3);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all .15s}
.btn-icon:hover{background:#F1F5F9;color:var(--text)}
.btn-icon i{font-size:16px}

/* ── Toolbar ───────────────────────────────────────────────── */
.toolbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.toolbar-left{display:flex;align-items:center;gap:8px;flex-wrap:wrap;flex:1}
.search-wrap{position:relative;min-width:220px;max-width:340px;flex:1}
.search-wrap i{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--text-4);font-size:17px;pointer-events:none}
.search-wrap input{width:100%;padding:8px 12px 8px 36px;border:1px solid var(--border);border-radius:8px;font-size:13px;outline:none;background:#fff;font-family:inherit;color:var(--text);transition:border .15s}
.search-wrap input:focus{border-color:var(--primary)}
.filter-sel{padding:8px 12px;border:1px solid var(--border);border-radius:8px;font-size:13px;outline:none;background:#fff;font-family:inherit;color:var(--text);cursor:pointer;transition:border .15s}
.filter-sel:focus{border-color:var(--primary)}

/* ── Form ──────────────────────────────────────────────────── */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{display:flex;flex-direction:column;gap:5px}
.form-group.full{grid-column:1/-1}
label{font-size:12px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.4px}
input,select,textarea{padding:9px 12px;border:1px solid var(--border);border-radius:8px;font-size:13px;outline:none;background:#fff;font-family:inherit;color:var(--text);transition:border .15s;width:100%}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
textarea{resize:vertical;min-height:80px}
.form-hint{font-size:11px;color:var(--text-4);margin-top:3px}

/* ── Settings ─────────────────────────────────────────────── */
.settings-layout{display:grid;grid-template-columns:220px 1fr;gap:20px;align-items:start}
.settings-nav{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:8px;box-shadow:var(--shadow)}
.settings-nav-btn{width:100%;display:flex;align-items:center;gap:9px;padding:9px 12px;border-radius:7px;border:none;cursor:pointer;background:transparent;color:var(--text-2);font-size:13px;font-family:inherit;font-weight:400;margin-bottom:2px;text-align:left;transition:all .15s}
.settings-nav-btn i{font-size:16px;color:var(--text-4);width:18px;text-align:center}
.settings-nav-btn:hover{background:#F8FAFC}
.settings-nav-btn.active{background:var(--primary-light);color:var(--primary);font-weight:600}
.settings-nav-btn.active i{color:var(--primary)}
.settings-panel{display:none}
.settings-panel.active{display:block}
.settings-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;margin-bottom:16px;box-shadow:var(--shadow)}
.settings-section-head{padding:15px 20px;border-bottom:1px solid var(--border);background:#FAFBFC}
.settings-section-title{font-size:14px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px}
.settings-section-sub{font-size:12px;color:var(--text-3);margin-top:3px}
.settings-body{padding:20px}
.provider-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:16px}
.provider-card{border:2px solid var(--border);border-radius:10px;padding:14px;cursor:pointer;transition:all .15s;position:relative}
.provider-card:hover{border-color:#93C5FD;background:#F8FAFC}
.provider-card.selected{border-color:var(--primary);background:var(--primary-light)}
.provider-card input[type=radio]{position:absolute;opacity:0;width:0;height:0}
.provider-card-name{font-weight:700;font-size:13px;color:var(--text);margin-bottom:2px}
.provider-card-sub{font-size:11px;color:var(--text-3)}
.provider-card-ico{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;margin-bottom:8px;font-size:17px}
.provider-card.selected .provider-card-name{color:var(--primary)}
.toggle-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid #F1F5F9}
.toggle-row:last-child{border-bottom:none}
.toggle-label{font-size:13px;color:var(--text-2);font-weight:500}
.toggle-sub{font-size:11px;color:var(--text-3);margin-top:2px}
.toggle{position:relative;display:inline-block;width:40px;height:22px;flex-shrink:0}
.toggle input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;cursor:pointer;inset:0;background:#D1D5DB;border-radius:20px;transition:.2s}
.toggle-slider::before{position:absolute;content:'';height:16px;width:16px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:.2s}
.toggle input:checked + .toggle-slider{background:var(--primary)}
.toggle input:checked + .toggle-slider::before{transform:translateX(18px)}

/* ── Modal ─────────────────────────────────────────────────── */
#modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:1000;display:none;align-items:center;justify-content:center;padding:20px;backdrop-filter:blur(2px)}
#modal-overlay.open{display:flex}
.modal-box{background:#fff;border-radius:var(--radius-lg);width:100%;max-width:540px;max-height:90vh;overflow-y:auto;box-shadow:0 20px 60px rgba(0,0,0,.2);animation:modalIn .2s ease}
@keyframes modalIn{from{opacity:0;transform:scale(.96)}to{opacity:1;transform:none}}
.modal-head{padding:18px 22px 14px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;position:sticky;top:0;background:#fff;z-index:1}
.modal-title{font-size:16px;font-weight:700}
.modal-close{background:none;border:none;cursor:pointer;color:var(--text-3);font-size:22px;display:flex;align-items:center;justify-content:center;border-radius:6px;padding:2px;transition:all .15s}
.modal-close:hover{background:#F1F5F9;color:var(--text)}
.modal-body{padding:20px 22px}
.modal-footer{display:flex;gap:10px;padding:14px 22px;border-top:1px solid var(--border);justify-content:flex-end;position:sticky;bottom:0;background:#fff;z-index:1}

/* ── Scanner Layout ──────────────────────────────────────────── */
.scanner-layout{display:grid;grid-template-columns:1fr 300px;gap:20px}
.scanner-area{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);padding:36px 28px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:420px;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:background .4s}
.sd-panel{display:none;flex-direction:column;align-items:center;justify-content:center;width:100%;animation:fadeIn .25s ease}
.sd-panel.active{display:flex}

/* Idle */
.sd-idle-ring{width:130px;height:130px;border-radius:50%;border:3px dashed #CBD5E1;display:flex;align-items:center;justify-content:center;margin-bottom:20px;background:#F8FAFC;animation:pulse-ring 2.5s ease-in-out infinite}
@keyframes pulse-ring{0%,100%{box-shadow:0 0 0 0 rgba(37,99,235,.08)}50%{box-shadow:0 0 0 14px rgba(37,99,235,.04)}}
.sd-idle-title{font-size:22px;font-weight:800;color:var(--text);margin-bottom:6px}
.sd-idle-sub{font-size:13px;color:var(--text-3);text-align:center;line-height:1.6}

/* Scanning */
.sd-scanning-ring{position:relative;width:120px;height:120px;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.sd-scanning-text{font-size:20px;font-weight:700;color:var(--text);margin-bottom:6px}
.sd-scanning-sub{font-size:12px;color:var(--text-3)}

/* Result */
#sd-result{padding:10px 0}
#sd-avatar-wrap{position:relative;width:140px;height:140px;border-radius:50%;overflow:hidden;margin-bottom:18px;box-shadow:0 8px 32px rgba(0,0,0,.18);border:4px solid rgba(255,255,255,.6);flex-shrink:0}
#sd-photo{width:100%;height:100%;object-fit:cover;display:block}
#sd-initials{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:44px;font-weight:900;color:#fff;letter-spacing:-2px}
#sd-student-name{font-size:26px;font-weight:800;color:#fff;text-align:center;line-height:1.2;margin-bottom:10px;text-shadow:0 2px 8px rgba(0,0,0,.2)}
#sd-type-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;border-radius:30px;font-size:14px;font-weight:800;letter-spacing:.5px;margin-bottom:12px;background:rgba(255,255,255,.25);color:#fff;border:2px solid rgba(255,255,255,.4);backdrop-filter:blur(4px)}
#sd-time-display{font-size:42px;font-weight:900;color:#fff;letter-spacing:-1px;line-height:1;margin-bottom:4px;text-shadow:0 2px 12px rgba(0,0,0,.15)}
#sd-location-display{font-size:13px;color:rgba(255,255,255,.8);font-weight:500;margin-bottom:10px}
#sd-sms-badge{font-size:12px;font-weight:600;padding:4px 12px;border-radius:20px;background:rgba(255,255,255,.2);color:rgba(255,255,255,.95);border:1px solid rgba(255,255,255,.3)}

/* Scanner background colors */
.scanner-area.state-entry{background:linear-gradient(135deg,#15803D 0%,#16A34A 50%,#22C55E 100%)}
.scanner-area.state-exit{background:linear-gradient(135deg,#C2410C 0%,#EA580C 50%,#F97316 100%)}
.scanner-area.state-error{background:linear-gradient(135deg,#991B1B 0%,#DC2626 100%)}
.scanner-area.state-scanning{background:linear-gradient(135deg,#1E3A5F 0%,#1D4ED8 100%)}

/* ── Photo Upload ─────────────────────────────────────────────── */
.photo-upload-zone{border:2px dashed var(--border);border-radius:12px;padding:20px;display:flex;flex-direction:column;align-items:center;gap:10px;cursor:pointer;transition:all .2s;background:#FAFBFC;position:relative}
.photo-upload-zone:hover{border-color:var(--primary);background:var(--primary-light)}
.photo-upload-zone.has-photo{border-style:solid;border-color:#BBF7D0;background:#F0FDF4}
.photo-preview{width:90px;height:90px;border-radius:50%;object-fit:cover;border:3px solid #fff;box-shadow:var(--shadow-md)}
.photo-avatar-preview{width:90px;height:90px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:30px;font-weight:800;color:#fff;box-shadow:var(--shadow-md)}
.photo-upload-input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}

/* ── Student table thumbnail ─────────────────────────────────── */
.stu-thumb{width:36px;height:36px;border-radius:50%;object-fit:cover;border:2px solid var(--border);flex-shrink:0}
.stu-thumb-initials{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#fff;flex-shrink:0}
.scanner-controls{display:flex;flex-direction:column;gap:14px}
.sc-card{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);padding:16px;box-shadow:var(--shadow)}
.sc-card-title{font-size:12px;font-weight:700;color:var(--text-3);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px}
.how-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.how-item{display:flex;align-items:flex-start;gap:8px}
.how-num{width:20px;height:20px;border-radius:50%;background:var(--primary);color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.how-text{font-size:12px;color:var(--text-2);line-height:1.4}

/* ── Pulse animation ────────────────────────────────────────── */
@keyframes pulse-ring{0%,100%{opacity:.3}50%{opacity:.7}}
@keyframes spin{to{transform:rotate(360deg)}}
.pulse circle.bg{animation:pulse-ring 2s infinite}
.scanning-spin circle.track{animation:spin 1s linear infinite;transform-origin:center;stroke-dasharray:60 160}

/* ── Toasts ─────────────────────────────────────────────────── */
#toast-container{position:fixed;bottom:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none}
.toast{background:#1E293B;color:#F1F5F9;padding:12px 18px;border-radius:10px;font-size:13px;font-weight:500;box-shadow:0 4px 16px rgba(0,0,0,.2);display:flex;align-items:center;gap:10px;max-width:340px;pointer-events:all;animation:toastIn .2s ease;border-left:3px solid #475569}
.toast i{font-size:18px;flex-shrink:0}
.toast.success{border-left-color:#22C55E}
.toast.error{border-left-color:#EF4444}
.toast.warning{border-left-color:#F59E0B}
@keyframes toastIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ── Spinner / Empty ─────────────────────────────────────────── */
.spinner-wrap{padding:40px;display:flex;justify-content:center;color:var(--text-4);font-size:13px;gap:10px;align-items:center}
.spinner{width:20px;height:20px;border:2px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite}
.empty-state{padding:50px 20px;text-align:center}
.empty-state i{font-size:40px;color:var(--text-4);margin-bottom:10px;display:block}
.empty-state p{font-size:13px;color:var(--text-3)}

/* ── Alert box ──────────────────────────────────────────────── */
.alert{padding:12px 16px;border-radius:8px;font-size:13px;display:flex;align-items:flex-start;gap:10px;margin-bottom:14px}
.alert i{font-size:17px;flex-shrink:0;margin-top:1px}
.alert-info{background:#EFF6FF;border:1px solid #BFDBFE;color:#1D4ED8}
.alert-success{background:#F0FDF4;border:1px solid #BBF7D0;color:#15803D}
.alert-danger{background:#FEF2F2;border:1px solid #FECACA;color:#B91C1C}
.alert-warning{background:#FFFBEB;border:1px solid #FDE68A;color:#92400E}

/* ── ID Card preview ─────────────────────────────────────────── */
.id-card{background:linear-gradient(135deg,#1E3A5F 0%,#1D4ED8 100%);border-radius:14px;padding:20px;color:#fff;width:100%;max-width:320px;margin:0 auto;box-shadow:0 8px 24px rgba(29,78,216,.3)}
.id-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:16px}
.id-card-school{font-size:11px;font-weight:700;opacity:.8;text-transform:uppercase;letter-spacing:.5px}
.id-card-type{font-size:10px;background:rgba(255,255,255,.15);padding:3px 8px;border-radius:4px;font-weight:600}
.id-card-avatar{width:72px;height:72px;border-radius:14px;background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;font-size:28px;font-weight:800;margin-bottom:12px;overflow:hidden}
.id-card-name{font-size:16px;font-weight:700;margin-bottom:3px}
.id-card-course{font-size:12px;opacity:.75;margin-bottom:12px}
.id-card-row{display:flex;justify-content:space-between;margin-bottom:6px}
.id-card-label{font-size:10px;opacity:.6;font-weight:600;text-transform:uppercase}
.id-card-value{font-size:12px;font-weight:600;font-family:monospace}
.id-card-rfid{background:rgba(0,0,0,.25);border-radius:8px;padding:8px 12px;margin-top:12px;display:flex;align-items:center;justify-content:space-between}

/* ── Responsive ─────────────────────────────────────────────── */
@media(max-width:900px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .scanner-layout{grid-template-columns:1fr}
  .settings-layout{grid-template-columns:1fr}
  .settings-nav{display:flex;flex-wrap:wrap;gap:4px;padding:6px}
  .settings-nav-btn{flex:1;min-width:120px;justify-content:center}
  .provider-cards{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:640px){
  #sidebar{display:none}
  .page{padding:16px 14px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr}
  .provider-cards{grid-template-columns:1fr 1fr}
}

/* ── Daily Time Records ─────────────────────────────────────── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
  margin-bottom: 18px;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.filter-group { display: flex; flex-direction: column; gap: 4px; }
.filter-label { font-size: 11px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }
.filter-input,
.filter-select {
  height: 34px;
  padding: 0 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  font-size: 13px;
  min-width: 130px;
}
.filter-input:focus,
.filter-select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.table-wrap { overflow-x: auto; border-radius: 10px; border: 1px solid var(--border); }
.data-table  { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data-table thead th {
  padding: 11px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  background: var(--card);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table tbody tr { border-bottom: 1px solid var(--border); transition: background .12s; }
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: var(--hover); }
.data-table td { padding: 11px 14px; vertical-align: middle; }

.td-num    { color: var(--text-muted); font-size: 12px; text-align: center; width: 36px; }
.td-time   { font-family: 'JetBrains Mono', monospace; font-size: 13px; white-space: nowrap; }
.td-in     { color: #22C55E; font-weight: 600; }
.td-out    { color: #F97316; font-weight: 600; }
.td-dur    { color: var(--text-muted); font-size: 12px; }

.dtr-student-cell { display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.dtr-avatar {
  width: 28px; height: 28px; border-radius: 50%;
  object-fit: cover; flex-shrink: 0;
}
.dtr-avatar-init {
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; color: #fff;
}
.dtr-name       { font-weight: 600; font-size: 13.5px; }
.dtr-id-inline  { font-size: 11px; color: var(--text-muted); }
.td-student     { white-space: nowrap; }
.td-meta        { font-size: 12.5px; color: var(--text-muted); white-space: nowrap; }

/* Status badges */
.badge-complete  { display:inline-block; padding:2px 9px; border-radius:99px; font-size:11px; font-weight:600; background:#D1FAE5; color:#065F46; }
.badge-still-in  { display:inline-block; padding:2px 9px; border-radius:99px; font-size:11px; font-weight:600; background:#FEF3C7; color:#92400E; }
.badge-absent    { display:inline-block; padding:2px 9px; border-radius:99px; font-size:11px; font-weight:600; background:#F1F5F9; color:#64748B; }

.table-empty        { padding: 40px; text-align: center; color: var(--text-muted); font-size: 14px; }
.table-empty.error  { color: #EF4444; }

.btn-sm { padding: 5px 12px; font-size: 12px; height: 34px; align-self: flex-end; }

@media(max-width:700px) {
  .filter-bar { gap: 8px; }
  .filter-input, .filter-select { min-width: 100px; }
  .dtr-section, .dtr-id { display: none; }
}