/* Admin and teacher pages: the menu runs down the left side (loaded by admin.html and teacher.html only) */
main { max-width: 1440px; }
#v-app { display: grid; grid-template-columns: 236px minmax(0, 1fr); column-gap: 24px; align-items: start; }
#v-app > * { grid-column: 2; min-width: 0; }
#v-app > #tabs { grid-column: 1; grid-row: 1 / span 80; }

#tabs {
  display: flex; flex-direction: column; flex-wrap: nowrap; gap: 3px;
  position: sticky; top: 16px; z-index: 5; margin: 0; padding: 10px;
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  box-shadow: 0 1px 2px rgba(19, 27, 46, .04);
  max-height: calc(100vh - 32px); overflow-y: auto;
}
#tabs .tab {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  padding: 10px 12px; border: 0; border-radius: 9px; background: transparent; color: #334155;
  font: 600 15px var(--font); cursor: pointer; position: relative;
  transition: background .15s, color .15s;
}
#tabs .tab::before {
  content: ''; flex: none; width: 19px; height: 19px; background: currentColor;
  -webkit-mask: var(--ic) center / contain no-repeat; mask: var(--ic) center / contain no-repeat; opacity: .85;
}
#tabs .tab:hover { background: #f1f5f9; color: var(--ink); }
#tabs .tab:focus-visible { outline: 2px solid var(--brand); outline-offset: 1px; }
#tabs .tab.on { background: var(--brand-soft); color: var(--brand-dark); }
#tabs .tab.on::before { opacity: 1; }
#tabs .tab.on::after { content: ''; position: absolute; left: -10px; top: 8px; bottom: 8px; width: 4px; border-radius: 0 4px 4px 0; background: var(--brand); }
#tabs .tab[data-tab="students"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='9' cy='7' r='4'/%3E%3Cpath d='M23 21v-2a4 4 0 0 0-3-3.87'/%3E%3Cpath d='M16 3.13a4 4 0 0 1 0 7.75'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="teachers"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M16 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='8.5' cy='7' r='4'/%3E%3Cpolyline points='17 11 19 13 23 9'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="schools"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2z'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="questions"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cpath d='M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3'/%3E%3Cline x1='12' y1='17' x2='12.01' y2='17'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="exams"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 3h6a4 4 0 0 1 4 4v14a3 3 0 0 0-3-3H2z'/%3E%3Cpath d='M22 3h-6a4 4 0 0 0-4 4v14a3 3 0 0 1 3-3h7z'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="tests"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z'/%3E%3Cpolyline points='14 2 14 8 20 8'/%3E%3Cline x1='16' y1='13' x2='8' y2='13'/%3E%3Cline x1='16' y1='17' x2='8' y2='17'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="results"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='20' x2='18' y2='10'/%3E%3Cline x1='12' y1='20' x2='12' y2='4'/%3E%3Cline x1='6' y1='20' x2='6' y2='14'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="feedback"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="plans"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20.59 13.41l-7.17 7.17a2 2 0 0 1-2.83 0L2 12V2h10l8.59 8.59a2 2 0 0 1 0 2.82z'/%3E%3Cline x1='7' y1='7' x2='7.01' y2='7'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="coupons"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='19' y1='5' x2='5' y2='19'/%3E%3Ccircle cx='6.5' cy='6.5' r='2.5'/%3E%3Ccircle cx='17.5' cy='17.5' r='2.5'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="sales"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='23 6 13.5 15.5 8.5 10.5 1 18'/%3E%3Cpolyline points='17 6 23 6 23 12'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="staff"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='2' y='7' width='20' height='14' rx='2' ry='2'/%3E%3Cpath d='M16 21V5a2 2 0 0 0-2-2h-4a2 2 0 0 0-2 2v16'/%3E%3C/svg%3E"); }
#tabs .tab[data-tab="settings"] { --ic: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='4' y1='21' x2='4' y2='14'/%3E%3Cline x1='4' y1='10' x2='4' y2='3'/%3E%3Cline x1='12' y1='21' x2='12' y2='12'/%3E%3Cline x1='12' y1='8' x2='12' y2='3'/%3E%3Cline x1='20' y1='21' x2='20' y2='16'/%3E%3Cline x1='20' y1='12' x2='20' y2='3'/%3E%3Cline x1='1' y1='14' x2='7' y2='14'/%3E%3Cline x1='9' y1='8' x2='15' y2='8'/%3E%3Cline x1='17' y1='16' x2='23' y2='16'/%3E%3C/svg%3E"); }

/* narrow screens: the menu becomes a strip along the top */
@media (max-width: 860px) {
  #v-app { display: block; }
  #tabs { flex-direction: row; overflow-x: auto; overflow-y: hidden; max-height: none; top: 0; margin-bottom: 14px; padding: 8px; border-radius: 12px; }
  #tabs .tab { width: auto; flex: none; white-space: nowrap; padding: 9px 12px; }
  #tabs .tab.on::after { left: 10px; right: 10px; top: auto; bottom: 0; width: auto; height: 3px; border-radius: 3px 3px 0 0; }
}
@media print { #v-app { display: block; } }