/* =============================================
   UNIVERZITNÝ IS – Stylesheet
   Minimalistický svetlý dizajn
   ============================================= */

:root {
  --blue:       #1a3a6b;
  --blue-light: #2a52a0;
  --red:        #c0392b;
  --accent:     #e8f0fe;
  --bg:         #f4f6fb;
  --white:      #ffffff;
  --border:     #dde3ef;
  --text:       #1a1e2e;
  --text-muted: #6b7280;
  --success:    #16a34a;
  --danger:     #dc2626;
  --sidebar-w:  240px;
  --radius:     10px;
  --shadow:     0 2px 12px rgba(26,58,107,.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Outfit', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
}

/* ── LAYOUT ── */
.layout {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--blue);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-brand {
  padding: 20px 16px 16px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.brand-logos { display: flex; gap: 8px; margin-bottom: 8px; }
.logo-img { height: 32px; object-fit: contain; filter: brightness(0) invert(1); }
.brand-title { display: block; color: #fff; font-weight: 700; font-size: 17px; }
.brand-sub { display: block; color: rgba(255,255,255,.55); font-size: 11px; }

.sidebar-nav { flex: 1; padding: 12px 10px; }
.nav-group-label {
  color: rgba(255,255,255,.4);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 14px 8px 4px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  border-radius: 7px;
  color: rgba(255,255,255,.75);
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  transition: background .15s, color .15s;
  margin-bottom: 2px;
}
.nav-item:hover { background: rgba(255,255,255,.1); color: #fff; }
.nav-item.active { background: rgba(255,255,255,.18); color: #fff; font-weight: 600; }
.nav-icon { font-size: 14px; width: 18px; text-align: center; }

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.user-badge { color: rgba(255,255,255,.7); font-size: 13px; }
.btn-logout {
  font-size: 12px;
  color: rgba(255,255,255,.6);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,.25);
  padding: 4px 10px;
  border-radius: 5px;
  transition: .15s;
}
.btn-logout:hover { background: rgba(255,255,255,.15); color: #fff; }

/* ── MAIN CONTENT ── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.page-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 18px 30px;
}
.page-title {
  font-family: 'DM Serif Display', serif;
  font-size: 24px;
  font-weight: 400;
  color: var(--blue);
}

.content-body { padding: 28px 30px; }

/* ── CARDS ── */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  margin-bottom: 22px;
}
.card-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  margin-bottom: 14px;
}

/* ── STAT CARDS ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .2s, box-shadow .2s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(26,58,107,.12); }
.stat-number {
  font-family: 'DM Serif Display', serif;
  font-size: 38px;
  color: var(--blue);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label { font-size: 12px; color: var(--text-muted); font-weight: 500; }

/* ── TABLE ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
  background: var(--bg);
  padding: 10px 14px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--accent); }
.table-empty { text-align: center; color: var(--text-muted); padding: 30px; font-size: 14px; }

/* ── SORT LINKS ── */
.sort-link { color: var(--blue); text-decoration: none; font-weight: 600; }
.sort-link:hover { text-decoration: underline; }

/* ── FORMS ── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: 7px;
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--white);
  transition: border .15s;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--blue-light); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 7px;
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: .15s;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--blue-light); }
.btn-secondary { background: var(--bg); color: var(--text); border: 1.5px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 5px 11px; font-size: 12px; }

/* ── ALERTS ── */
.alert {
  padding: 11px 16px;
  border-radius: 7px;
  font-size: 14px;
  margin-bottom: 16px;
  font-weight: 500;
}
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #86efac; }
.alert-error   { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-info    { background: var(--accent); color: var(--blue); border: 1px solid #bfdbfe; }

/* ── SEARCH BAR ── */
.search-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 18px;
}
.search-bar input,
.search-bar select { min-width: 180px; }

/* ── BADGE ── */
.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge-blue   { background: var(--accent); color: var(--blue); }
.badge-green  { background: #dcfce7; color: #166534; }
.badge-gray   { background: #f3f4f6; color: #6b7280; }
.badge-red    { background: #fee2e2; color: #991b1b; }

/* ── QUERY RESULTS ── */
.query-block { margin-bottom: 30px; }
.query-title {
  font-family: 'DM Serif Display', serif;
  font-size: 19px;
  color: var(--blue);
  margin-bottom: 6px;
}
.query-desc { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; }

/* ── LOGIN PAGE ── */
.login-page {
  min-height: 100vh;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 8px 40px rgba(26,58,107,.12);
  width: 100%;
  max-width: 420px;
  padding: 40px 36px;
}
.login-logo {
  text-align: center;
  margin-bottom: 28px;
}
.login-logo .brand-title { font-size: 26px; color: var(--blue); display: block; }
.login-logo .brand-sub { color: var(--text-muted); font-size: 13px; }
.login-logo .logo-imgs { display: flex; justify-content: center; gap: 12px; margin-bottom: 10px; }
.login-logo .logo-img { height: 36px; }

.tabs { display: flex; border-bottom: 2px solid var(--border); margin-bottom: 24px; }
.tab-btn {
  flex: 1;
  padding: 10px;
  border: none;
  background: none;
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: .15s;
}
.tab-btn.active { color: var(--blue); border-bottom-color: var(--blue); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.login-box .form-group { margin-bottom: 14px; }
.login-box .btn { width: 100%; justify-content: center; margin-top: 6px; padding: 12px; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .sidebar { width: 200px; }
  .main-content { margin-left: 200px; }
  .content-body { padding: 18px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .sidebar { transform: translateX(-100%); }
  .main-content { margin-left: 0; }
}
.login-logo .logo-img { filter: none; }