/* ── Академическая светлая тема · ДЭ 42.02.01 Реклама ── */
:root {
  --bg:        #F4F6FA;
  --surface:   #FFFFFF;
  --surface2:  #EEF2FA;
  --border:    #D0D8EE;
  --primary:   #1A3A8F;
  --primary2:  #2550C0;
  --accent:    #F5A623;
  --text:      #1A1F36;
  --text2:     #4A5568;
  --text3:     #8A96B0;
  --danger:    #C53030;
  --success:   #276749;
  --warn:      #B7791F;
  --radius:    10px;
  --shadow:    0 2px 8px rgba(26,58,143,.10);
  --shadow-md: 0 4px 16px rgba(26,58,143,.13);
}

* { margin:0; padding:0; box-sizing:border-box; }
body {
  font-family: 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.5;
}

/* ШАПКА */
.topbar {
  background: var(--primary);
  color: #fff;
  padding: 0 28px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0,0,0,.15);
}
.topbar-brand { font-weight: 700; font-size: 16px; letter-spacing: .3px; }
.topbar-sub   { font-size: 12px; opacity: .7; margin-top: 1px; }
.topbar-right { display: flex; align-items: center; gap: 16px; }
.topbar a     { color: rgba(255,255,255,.85); text-decoration: none; font-size: 13px; }
.topbar a:hover { color: #fff; }

/* КОНТЕЙНЕР */
.wrap { max-width: 1060px; margin: 0 auto; padding: 24px 20px; }

/* КАРТОЧКИ */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: .8px;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--surface2);
}

/* КНОПКИ */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 7px; border: none;
  font-size: 13px; font-weight: 600; cursor: pointer;
  text-decoration: none; transition: all .15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary2); }
.btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--surface2); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger  { background: var(--danger);  color: #fff; }
.btn-warn    { background: var(--warn);    color: #fff; }
.btn-ghost   { background: var(--surface2); color: var(--text2); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--border); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 13px 32px; font-size: 16px; font-weight: 700; }

/* БЕЙДЖИ */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600;
}
.badge-blue   { background: #E8EFFF; color: var(--primary); }
.badge-green  { background: #E6F7EE; color: var(--success); }
.badge-orange { background: #FFF3E0; color: var(--warn); }
.badge-red    { background: #FEE2E2; color: var(--danger); }
.badge-gray   { background: var(--surface2); color: var(--text3); }

/* ТАБЛИЦЫ */
table { width: 100%; border-collapse: collapse; }
th {
  background: var(--surface2);
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: .6px;
  text-align: left;
  border-bottom: 2px solid var(--border);
}
td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: #F8FAFE; }

/* ФОРМЫ */
input[type=text], input[type=date], input[type=number],
input[type=password], select, textarea {
  width: 100%;
  padding: 9px 13px;
  border: 1.5px solid var(--border);
  border-radius: 7px;
  font-size: 14px;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary2); }
label { display: block; font-size: 13px; font-weight: 600; color: var(--text2); margin-bottom: 5px; }
.form-group { margin-bottom: 14px; }

/* ТАЙМЕР */
.timer-display {
  font-size: 42px; font-weight: 700;
  font-family: 'Courier New', monospace;
  color: var(--primary);
  letter-spacing: 2px;
}
.timer-display.warn   { color: var(--warn); }
.timer-display.danger { color: var(--danger); animation: blink 1s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.4} }

/* ПРОГРЕСС МОДУЛЕЙ */
.modules-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.mod-step {
  padding: 5px 14px; border-radius: 20px; font-size: 13px;
  font-weight: 600; border: 2px solid;
}
.mod-step.done    { background:#E6F7EE; border-color:var(--success); color:var(--success); }
.mod-step.active  { background:#E8EFFF; border-color:var(--primary); color:var(--primary); }
.mod-step.pending { background:var(--surface2); border-color:var(--border); color:var(--text3); }

/* UPLOAD ZONE */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: all .2s;
  position: relative;
  background: var(--surface);
}
.upload-zone:hover, .upload-zone.drag {
  border-color: var(--primary2);
  background: var(--surface2);
}
.upload-zone input {
  position: absolute; inset: 0; opacity: 0;
  cursor: pointer; width: 100%; height: 100%;
  border: none; padding: 0;
}

/* TOAST */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  border-radius: var(--radius); padding: 13px 20px;
  font-size: 14px; font-weight: 500; z-index: 999;
  display: none; box-shadow: var(--shadow-md);
  border: 1.5px solid;
}
.toast.ok  { background:#E6F7EE; border-color:#68D391; color:var(--success); }
.toast.err { background:#FEE2E2; border-color:#FC8181; color:var(--danger); }

/* СЕКЦИИ */
.section-label {
  font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 1px; color: var(--text3); margin-bottom: 12px;
}

/* ОЦЕНОЧНЫЕ КНОПКИ */
.score-btns { display: flex; gap: 5px; }
.score-btn {
  width: 38px; height: 38px; border-radius: 7px;
  border: 2px solid var(--border); background: var(--surface);
  color: var(--text2); font-weight: 700; font-size: 14px;
  cursor: pointer; transition: all .12s;
}
.score-btn:hover { border-color: var(--primary); color: var(--primary); }
.score-btn.sel-2 { background:#E6F7EE; border-color:var(--success); color:var(--success); }
.score-btn.sel-1 { background:#FFF3E0; border-color:var(--warn); color:var(--warn); }
.score-btn.sel-0 { background:#FEE2E2; border-color:var(--danger); color:var(--danger); }

/* STICKY BAR */
.save-bar {
  position: sticky; bottom: 16px;
  background: var(--surface); border: 2px solid var(--primary);
  border-radius: var(--radius); padding: 14px 22px;
  display: flex; align-items: center; justify-content: space-between;
  box-shadow: var(--shadow-md); flex-wrap: wrap; gap: 12px; z-index: 10;
}

/* ЛЕНДИНГ */
.landing { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 20px; }
.logo-block { text-align: center; margin-bottom: 48px; }
.logo-icon { font-size: 56px; margin-bottom: 12px; }
.logo-title { font-size: 28px; font-weight: 800; color: var(--primary); }
.logo-sub { font-size: 14px; color: var(--text2); margin-top: 4px; }
.role-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr)); gap: 20px; max-width: 720px; width: 100%; }
.role-card { background: var(--surface); border: 2px solid var(--border); border-radius: 14px; padding: 28px 24px; text-align: center; text-decoration: none; color: var(--text); transition: all .2s; box-shadow: var(--shadow); }
.role-card:hover { border-color: var(--primary); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.role-card .icon { font-size: 36px; margin-bottom: 12px; }
.role-card h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 6px; }
.role-card p { font-size: 13px; color: var(--text2); }

/* ЛОГИН / РЕГИСТРАЦИЯ */
.login-wrap, .reg-wrap {
  min-height: 100vh; display: flex; align-items: center;
  justify-content: center; padding: 24px;
}
.login-card, .reg-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; padding: 36px 32px;
  width: 100%; max-width: 400px; box-shadow: var(--shadow-md);
}
.reg-card { max-width: 480px; }
.login-title, .reg-title { font-size: 22px; font-weight: 800; color: var(--primary); margin-bottom: 4px; }
.login-sub, .reg-sub { font-size: 13px; color: var(--text2); margin-bottom: 28px; }
.err { background:#FEE2E2; border:1px solid #FC8181; color:var(--danger); border-radius:7px; padding:10px 14px; font-size:13px; margin-bottom:16px; }
.back { font-size:13px; color:var(--text2); text-decoration:none; display:inline-flex; align-items:center; gap:4px; margin-bottom:20px; }
.back:hover { color:var(--primary); }

/* DASHBOARD */
.dash-grid { display:grid; grid-template-columns:340px 1fr; gap:20px; align-items:start; }
@media(max-width:900px){.dash-grid{grid-template-columns:1fr}}
.session-card { border:1.5px solid var(--border); border-radius:10px; margin-bottom:14px; overflow:hidden; }
.session-head { background:var(--primary); color:#fff; padding:12px 16px; display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:8px; }
.session-title { font-weight:700; font-size:15px; }
.session-meta  { font-size:12px; opacity:.8; }
.session-body  { padding:0; }
.type-pill { display:inline-block; padding:2px 9px; border-radius:10px; font-size:11px; font-weight:700; }
.type-exam  { background:#E8EFFF; color:var(--primary); }
.type-trial { background:#E6F7EE; color:var(--success); }
.type-check { background:#FFF3E0; color:var(--warn); }
.student-row { display:flex; align-items:center; gap:10px; padding:10px 16px; border-bottom:1px solid var(--border); flex-wrap:wrap; }
.student-row:last-child { border-bottom:none; }
.student-name { font-weight:600; font-size:14px; flex:1; min-width:120px; }
.student-group { font-size:12px; color:var(--text3); }
.student-actions { display:flex; gap:5px; flex-wrap:wrap; }
.score-chip { font-size:12px; font-weight:700; padding:3px 10px; border-radius:10px; }
.g5{background:#E6F7EE;color:var(--success)}
.g4{background:#E8EFFF;color:var(--primary)}
.g3{background:#FFF3E0;color:var(--warn)}
.g2{background:#FEE2E2;color:var(--danger)}
.panel-btn { padding:5px 12px; border-radius:6px; border:1.5px solid; font-size:12px; font-weight:600; cursor:pointer; background:transparent; text-decoration:none; display:inline-flex; align-items:center; gap:4px; white-space:nowrap; }
.pb-blue   { border-color:var(--primary); color:var(--primary); }
.pb-blue:hover { background:var(--surface2); }
.pb-red    { border-color:var(--danger); color:var(--danger); }
.pb-red:hover { background:#FEE2E2; }
.pb-gray   { border-color:var(--border); color:var(--text2); }
.pb-gray:hover { background:var(--surface2); }
.no-sessions { text-align:center; padding:48px 24px; color:var(--text3); }
.tasks-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; }
@media(max-width:600px){.tasks-grid{grid-template-columns:1fr}}
.dot { width:8px; height:8px; border-radius:50%; display:inline-block; margin-right:4px; }
.dot-active { background:#48BB78; box-shadow:0 0 0 2px #C6F6D5; }
.dot-wait   { background:var(--accent); }
.dot-done   { background:var(--text3); }
.dot-rm     { background:var(--danger); }

/* SCORE PAGE */
.score-page { max-width:980px; margin:0 auto; padding:20px; }
.student-header { display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; margin-bottom:20px; }
.student-info h2 { font-size:22px; font-weight:800; color:var(--primary); }
.student-info p  { font-size:13px; color:var(--text2); }
.score-box { background:var(--surface); border:2px solid var(--primary); border-radius:10px; padding:12px 20px; text-align:center; min-width:130px; }
.score-big { font-size:30px; font-weight:800; color:var(--primary); }
.score-label { font-size:12px; color:var(--text2); }
.all-exp-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(160px,1fr)); gap:10px; margin-top:10px; }
.exp-mini { background:var(--surface2); border-radius:8px; padding:12px 14px; }
.exp-mini-name  { font-size:12px; color:var(--text2); margin-bottom:4px; }
.exp-mini-score { font-size:20px; font-weight:700; color:var(--primary); }
.final-box { background:var(--primary); color:#fff; border-radius:8px; padding:12px 14px; }
.final-box .exp-mini-name  { color:rgba(255,255,255,.7); }
.final-box .exp-mini-score { color:#FFD700; }
.files-grid { display:flex; flex-wrap:wrap; gap:8px; margin-top:10px; }
.file-link { display:inline-flex; align-items:center; gap:5px; background:var(--surface2); border:1px solid var(--border); border-radius:6px; padding:6px 12px; color:var(--primary); text-decoration:none; font-size:13px; }
.file-link:hover { background:var(--border); }
.crit-section { margin-bottom:22px; }
.crit-title { font-size:13px; font-weight:700; color:var(--primary2); margin-bottom:10px; padding-bottom:8px; border-bottom:2px solid var(--surface2); }
.item-row { display:grid; grid-template-columns:1fr 130px 200px; gap:12px; align-items:start; padding:11px 0; border-bottom:1px solid var(--surface2); }
.item-row:last-child { border-bottom:none; }
@media(max-width:640px){ .item-row { grid-template-columns:1fr; } }
.item-action { font-size:14px; color:var(--text); }
.item-meta   { font-size:12px; color:var(--text3); margin-top:3px; }
.item-desc   { font-size:12px; color:var(--text2); line-height:1.6; white-space:pre-line; background:var(--surface2); border-radius:5px; padding:7px 9px; margin-top:6px; }
.score-col   { display:flex; flex-direction:column; align-items:center; gap:6px; }
.comment-col textarea { width:100%; min-height:52px; font-size:12px; resize:vertical; }
.mod-badge { display:inline-block; padding:2px 7px; border-radius:5px; font-size:11px; font-weight:700; background:var(--surface2); color:var(--primary); border:1px solid var(--border); margin-right:4px; }

/* STUDENT WORK */
.task-box { background:var(--surface2); border-left:4px solid var(--primary); border-radius:0 7px 7px 0; padding:14px 16px; margin-bottom:16px; font-size:14px; line-height:1.7; white-space:pre-wrap; }
.task-label { font-size:11px; font-weight:700; text-transform:uppercase; letter-spacing:1px; color:var(--primary); margin-bottom:6px; }
.file-list { margin-top:14px; }
.file-item { display:flex; align-items:center; gap:8px; padding:8px 12px; background:var(--surface2); border-radius:7px; margin-bottom:6px; font-size:13px; color:var(--text2); }
.done-block, .start-block { text-align:center; padding:36px 0; }
.start-block h2 { font-size:22px; font-weight:800; color:var(--primary); margin-bottom:8px; }
.start-block p  { color:var(--text2); font-size:14px; line-height:1.7; margin-bottom:24px; }
.removed-block  { text-align:center; padding:36px 0; }
.meta-row { display:flex; gap:24px; flex-wrap:wrap; align-items:center; margin-bottom:16px; }
.finish-row { margin-top:20px; padding-top:18px; border-top:1px solid var(--border); display:flex; gap:10px; flex-wrap:wrap; }