:root{--primary:#0f766e;--primary2:#0b5f59;--accent:#f59e0b;--bg:#f3f6fb;--text:#152238;--muted:#667085;--card:#fff;--line:#e4e9f1;--danger:#dc2626;--shadow:0 12px 35px rgba(15,23,42,.07)}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.container{width:min(1180px,92%);margin:auto}.nav{height:74px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;position:sticky;top:0;z-index:20}.navin{display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;font-weight:800}.brand small{display:block;color:#94a3b8;margin-top:2px}.logo{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,var(--primary),#14b8a6);color:#fff;font-weight:900}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:11px;padding:11px 16px;font-weight:700;cursor:pointer;background:#fff;border:1px solid var(--line);transition:.2s}.btn:hover{transform:translateY(-1px);box-shadow:0 5px 18px rgba(15,23,42,.08)}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary2)}.btn-small{padding:7px 10px;font-size:12px}.hero{padding:82px 0 60px;background:radial-gradient(circle at 80% 0%,rgba(20,184,166,.15),transparent 35%),linear-gradient(180deg,#fff,#f4fbfa)}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}.eyebrow{display:inline-block;padding:7px 12px;border-radius:999px;background:#e7f8f5;color:var(--primary);font-weight:800;font-size:12px;letter-spacing:.04em}.hero h1{font-size:clamp(40px,5vw,64px);line-height:1.04;margin:18px 0}.hero p{font-size:18px;line-height:1.75;color:var(--muted);max-width:680px}.hero-card,.card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:24px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.metric{background:#f8fafc;padding:18px;border-radius:16px}.metric b{font-size:28px;display:block}.section{padding:62px 0}.muted{color:var(--muted)}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature{background:#fff;border:1px solid var(--line);padding:24px;border-radius:18px;box-shadow:0 8px 28px rgba(15,23,42,.04)}.footer{background:#0f172a;color:#cbd5e1;padding:32px 0;margin-top:40px}.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1.05fr .95fr}.auth-side{padding:60px;background:linear-gradient(145deg,#0f766e,#0f4c5c);color:#fff;display:flex;flex-direction:column;justify-content:space-between}.auth-form{min-height:100vh;display:grid;place-items:center;padding:40px}.form-card{width:min(520px,100%)}label{font-weight:700;font-size:14px;display:block;margin:14px 0 7px}.check{display:flex;gap:8px;align-items:center}.check input{width:auto}input,select,textarea{width:100%;border:1px solid #d7dde5;border-radius:10px;padding:11px 12px;font:inherit;background:#fff;color:var(--text)}input:focus,select:focus,textarea:focus{outline:none;border-color:#5eead4;box-shadow:0 0 0 3px rgba(20,184,166,.12)}textarea{min-height:110px}.alert{padding:12px 14px;border-radius:10px;margin:12px 0}.alert-danger{background:#fef2f2;color:#991b1b}.alert-success{background:#ecfdf3;color:#166534}.shell{display:grid;grid-template-columns:270px 1fr;min-height:100vh}.sidebar{background:linear-gradient(180deg,#0f172a,#111c32);color:#e2e8f0;padding:22px 16px;position:sticky;top:0;height:100vh;z-index:60;display:flex;flex-direction:column}.sidebar .brand{padding:0 8px 20px}.menu{overflow:auto;flex:1}.menu a{display:flex;gap:10px;align-items:center;padding:10px 12px;border-radius:10px;color:#cbd5e1;margin:2px 0;font-size:14px}.menu a:hover,.menu a.active{background:#1e293b;color:#fff}.menu-label{font-size:10px;letter-spacing:.12em;color:#64748b;font-weight:800;padding:18px 12px 7px}.sidebar-user{border-top:1px solid #263247;padding:16px 10px 4px;display:flex;flex-direction:column}.sidebar-user small{color:#94a3b8;margin-top:3px}.main{padding:30px;min-width:0}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;gap:18px}.topbar h1{margin:4px 0 3px;font-size:32px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stats.five{grid-template-columns:repeat(5,1fr)}.stat{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px;position:relative;overflow:hidden}.stat .n{font-size:29px;font-weight:900;margin-top:7px}.stat small{color:var(--muted)}.stat-icon{position:absolute;right:16px;top:14px;width:34px;height:34px;border-radius:10px;background:#ecfdf5;display:grid;place-items:center}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:12px;border-bottom:1px solid var(--line);vertical-align:top}.table th{font-size:11px;text-transform:uppercase;letter-spacing:.05em;color:#64748b;background:#f8fafc}.badge{display:inline-block;padding:5px 9px;border-radius:999px;background:#eef2f7;font-size:12px;font-weight:800}.badge.green{background:#dcfce7;color:#166534}.badge.amber{background:#fef3c7;color:#92400e}.actions{display:flex;gap:8px;flex-wrap:wrap}.chartbar{height:9px;background:#e5e7eb;border-radius:999px;overflow:hidden}.chartbar span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),#2dd4bf);border-radius:inherit}.dashboard-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:16px}.span2{grid-column:span 2}.card h3{margin-top:0}.card-head{display:flex;justify-content:space-between;gap:16px;align-items:center}.progress-wrap{display:grid;grid-template-columns:190px 1fr;gap:32px;align-items:center;padding:12px 0}.progress-ring{--p:0;width:165px;height:165px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--primary) calc(var(--p)*1%),#e7edf3 0);position:relative}.progress-ring:before{content:"";width:125px;height:125px;background:#fff;border-radius:50%;position:absolute}.progress-ring div{position:relative;display:flex;flex-direction:column;text-align:center}.progress-ring b{font-size:28px}.progress-ring span{font-size:12px;color:var(--muted)}.progress-info{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.progress-info div{background:#f8fafc;border-radius:12px;padding:15px;display:flex;flex-direction:column;gap:6px}.mini-stat{padding:8px 0}.mini-stat>div:first-child,.report-row>div:first-child{display:flex;justify-content:space-between;gap:12px;margin-bottom:7px}.bar-chart{height:220px;display:flex;gap:18px;align-items:flex-end;padding:20px 10px 0}.bar-item{height:100%;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:6px}.bar-col{width:min(42px,70%);background:linear-gradient(180deg,#2dd4bf,var(--primary));border-radius:8px 8px 3px 3px;min-height:8px}.bar-value{font-size:12px;font-weight:800}.quick-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.quick{padding:14px;border-radius:13px;background:#f8fafc;border:1px solid var(--line);display:grid;gap:4px}.quick b{font-size:14px}.quick small{color:var(--muted)}.filter-grid{display:grid;grid-template-columns:2fr repeat(3,1fr) auto;gap:10px;align-items:end}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.report-row{padding:11px 0}.insight{border-left:4px solid var(--primary);padding:13px 15px;background:#f0fdfa;border-radius:0 10px 10px 0;display:grid;gap:5px}.insight b{font-size:24px}.modal{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;place-items:center;padding:20px;z-index:100}.modal.show{display:grid}.modal-box{width:min(650px,96vw);max-height:90vh;overflow:auto;background:#fff;border-radius:20px;padding:24px;box-shadow:0 30px 80px rgba(0,0,0,.2)}.modal-box.wide{width:min(850px,96vw)}.icon-btn{border:0;background:#f1f5f9;width:34px;height:34px;border-radius:50%;font-size:22px;cursor:pointer}.mobile-menu{display:none;position:fixed;left:12px;top:12px;z-index:80;width:42px;height:42px;border:0;border-radius:10px;background:#0f172a;color:#fff;font-size:20px}.backup-icon{width:66px;height:66px;border-radius:18px;background:#ecfdf5;color:var(--primary);display:grid;place-items:center;font-size:32px}.empty{color:var(--muted);padding:24px;text-align:center}@media(max-width:1100px){.stats,.stats.five{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr 1fr}.span2{grid-column:span 1}.filter-grid{grid-template-columns:1fr 1fr}}@media(max-width:900px){.shell{grid-template-columns:1fr}.sidebar{position:fixed;left:-290px;width:270px;transition:.25s}.sidebar.open{left:0}.mobile-menu{display:block}.main{padding:70px 18px 24px}.hero-grid,.auth-wrap{grid-template-columns:1fr}.auth-side{display:none}.progress-wrap{grid-template-columns:1fr}.progress-ring{margin:auto}.topbar{align-items:flex-start}.topbar h1{font-size:27px}}@media(max-width:640px){.stats,.stats.five,.dashboard-grid,.grid3,.metrics,.form-grid,.filter-grid,.progress-info{grid-template-columns:1fr}.topbar{flex-direction:column}.card{padding:18px}.bar-chart{gap:8px}.main{padding-left:12px;padding-right:12px}}@media print{.sidebar,.mobile-menu,.topbar .btn{display:none!important}.shell{display:block}.main{padding:0}.card,.stat{box-shadow:none}}

/* ===== Tracer Study v2.1 Professional UI ===== */
:root{
  --sidebar:#0b1730;
  --sidebar2:#10213e;
  --sidebar-hover:#172b4d;
  --soft:#f7f9fc;
}
.shell{grid-template-columns:286px minmax(0,1fr)}
.sidebar{background:linear-gradient(180deg,var(--sidebar) 0%,var(--sidebar2) 100%);padding:20px 14px 14px;border-right:1px solid rgba(255,255,255,.04)}
.sidebar-brand{padding:2px 8px 18px!important;gap:12px;min-height:72px}
.brand-logo-img{width:46px;height:46px;object-fit:contain;flex:0 0 46px;border-radius:12px;background:#fff;padding:3px;box-shadow:0 8px 20px rgba(0,0,0,.18)}
.brand-copy{display:flex;flex-direction:column;min-width:0;line-height:1.15}
.brand-copy strong{font-size:16px;color:#fff;white-space:nowrap}
.brand-copy small{font-size:11px;line-height:1.35;color:#a9b7cc;margin-top:4px;white-space:normal}
.menu{padding-right:2px;scrollbar-width:thin;scrollbar-color:#31435f transparent}
.menu a{min-height:42px;padding:10px 12px;border-radius:11px;color:#d4deeb;font-size:14px;border:1px solid transparent;transition:background .18s ease,border-color .18s ease,transform .18s ease}
.menu a:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.05);transform:translateX(2px)}
.menu a.active{background:linear-gradient(90deg,rgba(20,184,166,.22),rgba(20,184,166,.08));border-color:rgba(45,212,191,.22);color:#fff;box-shadow:inset 3px 0 0 #2dd4bf}
.menu-label{color:#7890ad;padding-top:16px}
.sidebar-footer{border-top:1px solid rgba(255,255,255,.08);padding:12px 5px 0;margin-top:10px;display:grid;gap:10px}
.sidebar-user-card{display:flex;align-items:center;gap:10px;padding:4px 4px 7px}
.user-avatar{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#14b8a6,#0f766e);color:#fff;display:grid;place-items:center;font-weight:900;box-shadow:0 6px 16px rgba(15,118,110,.28)}
.sidebar-user-text{display:flex;flex-direction:column;min-width:0}.sidebar-user-text b{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:#f8fafc}.sidebar-user-text small{font-size:10px;color:#91a4bd;margin-top:2px}
.sidebar-exit{display:flex!important;align-items:center;justify-content:center;gap:8px;min-height:42px;padding:10px 12px;border-radius:11px;background:rgba(220,38,38,.10);border:1px solid rgba(248,113,113,.22);color:#fecaca!important;font-weight:800;font-size:13px;transition:.18s ease}
.sidebar-exit:hover{background:rgba(220,38,38,.18)!important;border-color:rgba(248,113,113,.36)!important;transform:translateY(-1px)!important}
.main{padding:34px 34px 44px;background:radial-gradient(circle at 92% 2%,rgba(20,184,166,.08),transparent 26%),var(--bg)}
.topbar{padding:4px 0 2px}.topbar h1{font-size:34px;letter-spacing:-.02em}.eyebrow{box-shadow:inset 0 0 0 1px rgba(15,118,110,.08)}
.stat,.card{border-color:#e7ebf2;box-shadow:0 10px 28px rgba(15,23,42,.045)}
.stat{transition:transform .18s ease,box-shadow .18s ease}.stat:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(15,23,42,.075)}
.stat-icon{font-size:17px;border:1px solid #dff6ef}
.card{border-radius:18px}.quick{transition:.18s ease}.quick:hover{background:#f0fdfa;border-color:#b7eee3;transform:translateY(-1px)}
.badge.green{box-shadow:inset 0 0 0 1px rgba(22,101,52,.08)}
.mobile-menu{box-shadow:0 8px 18px rgba(15,23,42,.16)}
@media(max-width:900px){.shell{grid-template-columns:1fr}.sidebar{width:286px;left:-306px}.sidebar.open{left:0}.main{padding:72px 18px 28px}}
@media(max-width:640px){.main{padding-left:12px;padding-right:12px}.brand-copy strong{font-size:15px}.brand-copy small{font-size:10px}}


/* ===== Tracer Study v2.2 Front & Login Enhancement ===== */
.site-logo-sm{width:46px;height:46px;object-fit:contain;border-radius:12px;background:#fff;padding:3px;box-shadow:0 8px 20px rgba(15,23,42,.08)}
.brand-campus strong{display:block;font-size:18px;line-height:1.15}
.nav-premium{backdrop-filter:blur(10px);background:rgba(255,255,255,.92)}
.hero-premium{padding-top:72px}
.hero-brandline{display:flex;align-items:center;gap:12px;margin-top:16px}
.hero-logo-sm{width:54px;height:54px;object-fit:contain;border-radius:14px;background:#fff;padding:4px;box-shadow:0 10px 26px rgba(15,23,42,.10)}
.hero-showcase{position:relative}
.premium-card{border-radius:24px;box-shadow:0 24px 60px rgba(15,23,42,.09);background:linear-gradient(180deg,#ffffff,#fbfeff)}
.hero-minihead{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.tiny-logo{width:40px;height:40px;object-fit:contain;border-radius:10px;background:#fff;padding:2px;box-shadow:0 6px 16px rgba(15,23,42,.10)}
.hero-note{margin-top:18px;padding:14px 15px;border-radius:14px;background:#f8fafc;color:#475467;font-size:14px;line-height:1.65;border:1px solid var(--line)}
.hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px}
.hero-point{display:flex;gap:10px;align-items:flex-start;padding:13px 12px;border-radius:14px;background:#fff;border:1px solid var(--line);box-shadow:0 10px 24px rgba(15,23,42,.04)}
.hero-point span{width:24px;height:24px;border-radius:999px;background:#dcfce7;color:#166534;display:grid;place-items:center;font-weight:900;flex:0 0 24px}
.hero-point b{display:block;font-size:14px;margin-bottom:4px}.hero-point small{display:block;color:var(--muted);line-height:1.5}
.auth-premium{background:radial-gradient(circle at 10% 10%,rgba(20,184,166,.14),transparent 25%),linear-gradient(135deg,#f0fdfa,#f8fbff)}
.auth-side-campus{background:linear-gradient(145deg,#0b1730,#11345a);position:relative;overflow:hidden}
.auth-side-campus:before{content:"";position:absolute;inset:auto -40px -50px auto;width:220px;height:220px;border-radius:50%;background:rgba(45,212,191,.14);filter:blur(3px)}
.auth-brand-campus{gap:12px;align-items:center}.auth-brand-campus>div{display:flex;flex-direction:column;gap:4px}.auth-brand-campus strong{font-size:20px;color:#fff}.auth-brand-campus small{color:#b9cde5}
.auth-copy{display:grid;gap:18px}
.auth-lead{font-size:18px;line-height:1.75;color:#d7e7f7;margin:0}
.login-narrative{display:grid;gap:12px;margin-top:4px}
.narrative-item{display:flex;gap:12px;align-items:flex-start;padding:13px 14px;border:1px solid rgba(255,255,255,.10);background:rgba(255,255,255,.06);border-radius:14px}
.narrative-item span{font-size:26px;line-height:1;color:#5eead4;margin-top:-2px}.narrative-item b{display:block;color:#fff;font-size:15px;margin-bottom:4px}.narrative-item small{display:block;color:#d5e6f7;line-height:1.6}
.login-card-premium{border-radius:22px;box-shadow:0 18px 44px rgba(15,23,42,.08)}
.login-card-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}.login-card-head h2{margin:0 0 4px}
.login-miniinfo{margin:16px 0 8px;padding:12px 14px;border-radius:12px;background:#f8fafc;border:1px solid var(--line);color:#475467;font-size:14px;line-height:1.6}
.topbar-premium{align-items:flex-start}
.topbar-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.btn-exit-top{background:#fff5f5;border-color:#fecaca;color:#b91c1c}
.btn-exit-top:hover{background:#fee2e2}
.compact-only{padding-top:14px}
@media(max-width:900px){.hero-points{grid-template-columns:1fr}.topbar-actions{width:100%;justify-content:flex-start}.site-logo-sm{width:42px;height:42px}.hero-logo-sm{width:48px;height:48px}}
@media(max-width:640px){.hero-point{padding:12px}.login-card-head{align-items:flex-start}.auth-form{padding:18px}}


/* ===== Tracer Study v2.2.2 Sidebar Button Hotfix ===== */
.shell{grid-template-columns:258px minmax(0,1fr)}
.sidebar{padding:16px 12px 14px!important;overflow:hidden}
.sidebar-brand{padding:2px 8px 14px!important;gap:10px;min-height:auto}
.brand-logo-img{width:40px!important;height:40px!important;flex:0 0 40px!important;padding:3px!important;border-radius:10px!important}
.brand-copy strong{font-size:15px!important;line-height:1.15!important;white-space:normal!important}
.brand-copy small{font-size:10px!important;line-height:1.35!important;color:#aab7cb!important}
.sidebar-menu-clean{padding-top:4px}
.menu-label{font-size:10px!important;letter-spacing:.12em!important;color:#7d90aa!important;padding:14px 10px 7px!important}
.menu a{display:flex!important;align-items:center!important;gap:10px!important;min-height:42px!important;padding:10px 12px!important;margin:4px 0!important;border-radius:12px!important;color:#dbe5f3!important;font-size:14px!important;font-weight:600!important;line-height:1.25!important;border:1px solid transparent!important}
.menu a span:last-child{display:block;flex:1;min-width:0}
.menu a:hover{background:rgba(255,255,255,.075)!important;border-color:rgba(255,255,255,.06)!important;transform:translateX(2px)!important}
.menu a.active{background:linear-gradient(90deg,rgba(20,184,166,.22),rgba(20,184,166,.08))!important;border-color:rgba(45,212,191,.25)!important;color:#fff!important;box-shadow:inset 3px 0 0 #2dd4bf!important}
.menu-ico{width:28px!important;height:28px!important;flex:0 0 28px!important;border-radius:8px!important;display:grid!important;place-items:center!important;background:rgba(255,255,255,.06)!important;color:#e8f2ff!important;font-size:14px!important}
.menu a.active .menu-ico{background:rgba(255,255,255,.14)!important}
.sidebar-footer-clean{border-top:1px solid rgba(255,255,255,.08)!important;padding:12px 6px 0!important;margin-top:10px!important}
.sidebar-user-card-clean{display:flex!important;align-items:center!important;gap:10px!important;padding:8px 8px 6px!important;border-radius:12px!important;background:rgba(255,255,255,.04)!important}
.user-avatar{width:34px!important;height:34px!important;border-radius:10px!important;display:grid!important;place-items:center!important;background:linear-gradient(135deg,#14b8a6,#0f766e)!important;color:#fff!important;font-weight:900!important;box-shadow:0 6px 16px rgba(15,118,110,.28)!important}
.sidebar-user-text{display:flex!important;flex-direction:column!important;min-width:0!important}
.sidebar-user-text b{font-size:13px!important;line-height:1.2!important;color:#f8fafc!important;white-space:nowrap!important;overflow:hidden!important;text-overflow:ellipsis!important}
.sidebar-user-text small{font-size:10px!important;line-height:1.2!important;color:#9eb0c8!important;margin-top:3px!important;letter-spacing:.04em!important}
@media(max-width:900px){.shell{grid-template-columns:1fr}.sidebar{width:258px!important;left:-278px!important}}


/* ===== v2.2.3 Emergency Frontend Stability Fix ===== */
.front-logo-fixed{width:40px!important;height:40px!important;max-width:40px!important;max-height:40px!important;min-width:40px!important;min-height:40px!important;object-fit:contain!important;display:block!important;flex:0 0 40px!important;border-radius:9px!important;background:#fff!important;padding:2px!important;box-sizing:border-box!important}
.login-logo-fixed{width:42px!important;height:42px!important;max-width:42px!important;max-height:42px!important;min-width:42px!important;min-height:42px!important;object-fit:contain!important;display:block!important;flex:0 0 42px!important;border-radius:10px!important;background:#fff!important;padding:2px!important;box-sizing:border-box!important}
.front-brand-fixed{display:flex!important;align-items:center!important;gap:10px!important;min-width:0!important}
.front-brand-fixed>div{min-width:0!important}.front-brand-fixed strong{font-size:17px!important;line-height:1.1!important}.front-brand-fixed small{font-size:11px!important;line-height:1.25!important}
.hero-clean{padding:78px 0 62px!important;background:radial-gradient(circle at 82% 0%,rgba(20,184,166,.12),transparent 34%),linear-gradient(180deg,#fff,#f5fbfa)!important;overflow:hidden!important}
.hero-clean .hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(320px,.75fr)!important;gap:42px!important}
.hero-clean .hero-card{max-width:520px!important;margin-left:auto!important}
.hero-clean h1{font-size:clamp(38px,4.7vw,62px)!important}
@media(max-width:900px){.hero-clean .hero-grid{grid-template-columns:1fr!important}.hero-clean .hero-card{max-width:none!important;margin-left:0!important}}