*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;font-family:"Segoe UI",Arial,sans-serif;color:#1a2332;background:#f0f2f0}
button,input,select{font:inherit;cursor:pointer}

/* ── ЭКРАН ВХОДА ─────────────────────────────────────── */
.login-screen{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#1A5240 0%,#0d3329 100%);
  padding:24px;
}
.login-box{
  width:min(420px,100%);background:#fff;border-radius:12px;
  padding:36px 32px;box-shadow:0 32px 64px rgba(0,0,0,.28);
}
.login-logo{
  width:72px;height:72px;border-radius:50%;overflow:hidden;
  margin:0 auto 18px;border:3px solid #1A5240;
}
.login-logo img{width:100%;height:100%;object-fit:cover}
.login-box h2{text-align:center;font-size:24px;margin-bottom:6px;color:#1A5240}
.login-sub{text-align:center;font-size:12.5px;color:#667;margin-bottom:20px;line-height:1.5}
.role-switch{display:grid;grid-template-columns:1fr 1fr;border:1px solid #d0d8d0;border-radius:6px;overflow:hidden;margin-bottom:16px}
.role-tab{border:0;background:#fff;padding:10px;font-weight:700;color:#445;font-size:14px;transition:.15s}
.role-tab.active{background:#1A5240;color:#fff}
.login-box input{
  width:100%;padding:11px 13px;border:1px solid #cdd5c8;border-radius:6px;
  margin-bottom:10px;outline:none;font-size:14px;background:#fafcfa;
}
.login-box input:focus{border-color:#1A5240;box-shadow:0 0 0 3px rgba(26,82,64,.12)}
.student-login-field{display:none}
.login-box.student-mode .student-login-field{display:block}
.login-box.student-mode #loginPassword{display:none}
.btn-primary{
  width:100%;padding:12px;background:#1A5240;color:#fff;border:0;
  border-radius:6px;font-weight:700;font-size:15px;transition:.15s;
}
.btn-primary:hover{background:#144035}
.login-hint{font-size:12px;color:#889;text-align:center;margin-top:10px}
.login-error{font-size:13px;color:#c0392b;text-align:center;margin-top:6px;min-height:16px}

/* ── ПРИЛОЖЕНИЕ: оболочка ──────────────────────────────── */
.app-shell{display:none}
body:not(.is-auth) .app-shell{display:none!important}
body.is-auth .login-screen{display:none}
body.is-auth .app-shell{display:grid}

.app{
  display:grid;
  grid-template-columns:240px 1fr;
  height:100vh;
  overflow:hidden;
}

/* ── ЛЕВЫЙ САЙДБАР ──────────────────────────────────────── */
.sidebar{
  display:flex;flex-direction:column;
  background:#1A5240;color:#fff;
  overflow-y:auto;
}
.sidebar-brand{
  display:flex;align-items:center;gap:12px;
  padding:20px 18px 16px;border-bottom:1px solid rgba(255,255,255,.12);
}
.sidebar-logo{
  width:42px;height:42px;border-radius:50%;object-fit:cover;
  border:2px solid rgba(255,255,255,.35);flex-shrink:0;
}
.sidebar-title{font-weight:800;font-size:14px;line-height:1.2;color:#fff}
.sidebar-sub{font-size:11px;color:rgba(255,255,255,.55);margin-top:2px}

.sidebar-nav{
  display:flex;flex-direction:column;gap:3px;
  padding:14px 12px;flex:1;
}
.nav-btn{
  display:flex;align-items:center;gap:10px;
  padding:11px 13px;border:0;border-radius:8px;
  background:transparent;color:rgba(255,255,255,.75);
  font-weight:600;font-size:14px;text-align:left;
  transition:.15s;
}
.nav-btn:hover{background:rgba(255,255,255,.12);color:#fff}
.nav-btn.active{background:rgba(255,255,255,.18);color:#fff;box-shadow:inset 3px 0 0 #D4A017}
.nav-icon{font-size:16px;width:20px;text-align:center;flex-shrink:0}

.sidebar-footer{
  padding:12px 14px 18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-direction:column;gap:8px;
}
.session-info{padding:8px 10px;background:rgba(255,255,255,.1);border-radius:6px}
.session-label{font-size:10px;text-transform:uppercase;letter-spacing:.1em;color:rgba(255,255,255,.5);margin-bottom:3px}
.session-name{font-size:13px;font-weight:700;color:#fff}
.btn-logout{
  padding:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
  border-radius:6px;color:#fff;font-weight:600;font-size:13px;transition:.15s;
}
.btn-logout:hover{background:rgba(255,255,255,.22)}
.btn-danger-sm{
  padding:7px;background:transparent;border:1px solid rgba(212,64,64,.5);
  border-radius:6px;color:rgba(255,160,160,.8);font-size:12px;font-weight:600;transition:.15s;
}
.btn-danger-sm:hover{background:rgba(180,40,40,.25);color:#ffa0a0}

/* ── ПРАВАЯ ЧАСТЬ ──────────────────────────────────────── */
.main-area{
  display:flex;flex-direction:column;
  overflow:hidden;
  background:#f0f2f0;
}

/* TOPBAR */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:14px 28px;background:#fff;
  border-bottom:2px solid #1A5240;flex-shrink:0;
}
.page-title{font-size:20px;font-weight:800;color:#1A5240}
.page-sub{font-size:12.5px;color:#667;margin-top:2px}
.topbar-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.meta-chip{font-size:13px;color:#445;display:flex;align-items:center;gap:5px}
.btn-sm{
  padding:7px 13px;background:#fff;border:1px solid #1A5240;
  border-radius:5px;color:#1A5240;font-weight:700;font-size:13px;transition:.15s;
}
.btn-sm:hover{background:#1A5240;color:#fff}

/* КОНТЕНТ */
.content{flex:1;overflow-y:auto;padding:24px 28px}

/* ПАНЕЛИ */
.panel{display:none}
.panel.active{display:block}

/* СТАТИСТИКА ВЕРХНЯЯ */
.stats-row{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:14px;margin-bottom:22px;
}
.stat-card{
  background:#fff;border-radius:10px;padding:18px 20px;
  border-left:4px solid #1A5240;
  box-shadow:0 2px 8px rgba(0,0,0,.06);
}
.stat-card .stat-value{font-size:32px;font-weight:800;color:#1A5240;line-height:1}
.stat-card .stat-label{font-size:12px;color:#778;margin-top:6px;text-transform:uppercase;letter-spacing:.06em}

/* КАРТОЧКИ */
.card{
  background:#fff;border-radius:10px;padding:20px 22px;
  box-shadow:0 2px 8px rgba(0,0,0,.06);
}
.card h4{
  font-size:16px;font-weight:800;color:#1a2332;
  margin-bottom:14px;padding-bottom:10px;
  border-bottom:2px solid #1A5240;
}

/* СЕТКИ */
.two-col{display:grid;grid-template-columns:340px 1fr;gap:20px;align-items:start}
.reports-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}

/* ФОРМЫ */
.form-grid{display:grid;gap:10px}
.form-grid input,.form-grid select{
  width:100%;padding:10px 12px;
  border:1px solid #cbd4c8;border-radius:6px;
  background:#fafcfa;outline:none;font-size:14px;
}
.form-grid input:focus,.form-grid select:focus{
  border-color:#1A5240;box-shadow:0 0 0 3px rgba(26,82,64,.1);
}
.form-grid .btn-primary{width:auto;padding:10px 20px}

/* СПИСКИ */
.table-list,.list{background:#fff;border-radius:6px;overflow:hidden;border:1px solid #e0e4de}
.table-item,.feed-item,.report-item{
  padding:11px 14px;border-bottom:1px solid #e8ece6;
}
.table-item:last-child,.feed-item:last-child,.report-item:last-child{border-bottom:0}
.table-item:nth-child(even),.feed-item:nth-child(even){background:#fafbf8}
.table-item strong,.feed-item strong{display:block;font-size:14px;margin-bottom:3px}
.table-meta,.feed-meta{font-size:12.5px;color:#667;line-height:1.5}
.empty{padding:16px;color:#889;font-size:14px;text-align:center;background:#fafcfa;border:1px dashed #cbd4c8;border-radius:6px}

/* ОТЧЁТЫ */
.report-text{line-height:1.75;color:#4a5a68;background:#f8faf8;border-left:4px solid #1A5240;padding:16px;border-radius:0 6px 6px 0}
.report-text p{margin-bottom:10px}
.report-text p:last-child{margin-bottom:0}

/* ПИЛЮЛИ СТАТУСОВ */
.pill{display:inline-flex;align-items:center;padding:3px 9px;border-radius:999px;font-size:11px;font-weight:700;margin-top:6px;border:1px solid currentColor}
.pill.blue{color:#2d5e9f;background:#f0f6ff}
.pill.green{color:#1A5240;background:#edf7f2}
.pill.orange{color:#9a6200;background:#fff8ec}
.pill.red{color:#a53d4a;background:#fff3f4}

.visually-hidden-field{display:none!important}

/* ОТЧЁТНЫЕ КАРТОЧКИ */
.report-stat-card{
  background:#fff;border-radius:10px;padding:20px 16px;text-align:center;
  box-shadow:0 2px 8px rgba(0,0,0,.06);border-top:4px solid #1A5240;
}
.report-stat-card .rs-value{font-size:36px;font-weight:800;color:#1A5240}
.report-stat-card .rs-label{font-size:12px;color:#667;text-transform:uppercase;letter-spacing:.06em;margin-top:6px}