/* ============================================================
   ENLACE ESCOLAR | USICAMM AI — Global Design System
   Inspirado en Kling AI — Dark Mode Premium SaaS
   ============================================================ */

/* ── Icon system ── */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  background-color: currentColor;
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
}

.icon-sm  { width: 14px; height: 14px; }
.icon-md  { width: 18px; height: 18px; }
.icon-lg  { width: 22px; height: 22px; }
.icon-xl  { width: 28px; height: 28px; }

.icon-home        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 01-2 2H5a2 2 0 01-2-2z'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M3 9l9-7 9 7v11a2 2 0 01-2 2H5a2 2 0 01-2-2z'/%3E%3Cpolyline points='9 22 9 12 15 12 15 22'/%3E%3C/svg%3E"); }
.icon-user        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 21v-2a4 4 0 00-4-4H8a4 4 0 00-4 4v2'/%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 21v-2a4 4 0 00-4-4H8a4 4 0 00-4 4v2'/%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3C/svg%3E"); }
.icon-chart       { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' 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"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' 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"); }
.icon-book        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 3h6a4 4 0 014 4v14a3 3 0 00-3-3H2z'/%3E%3Cpath d='M22 3h-6a4 4 0 00-4 4v14a3 3 0 013-3h7z'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 3h6a4 4 0 014 4v14a3 3 0 00-3-3H2z'/%3E%3Cpath d='M22 3h-6a4 4 0 00-4 4v14a3 3 0 013-3h7z'/%3E%3C/svg%3E"); }
.icon-bolt        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolygon points='13 2 3 14 12 14 11 22 21 10 12 10 13 2'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolygon points='13 2 3 14 12 14 11 22 21 10 12 10 13 2'/%3E%3C/svg%3E"); }
.icon-clipboard   { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M16 4h2a2 2 0 012 2v14a2 2 0 01-2 2H6a2 2 0 01-2-2V6a2 2 0 012-2h2'/%3E%3Crect x='8' y='2' width='8' height='4' rx='1' ry='1'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M16 4h2a2 2 0 012 2v14a2 2 0 01-2 2H6a2 2 0 01-2-2V6a2 2 0 012-2h2'/%3E%3Crect x='8' y='2' width='8' height='4' rx='1' ry='1'/%3E%3C/svg%3E"); }
.icon-robot       { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='11' width='18' height='10' rx='2'/%3E%3Ccircle cx='12' cy='5' r='2'/%3E%3Cline x1='12' y1='7' x2='12' y2='11'/%3E%3Cline x1='8' y1='15' x2='8' y2='15'/%3E%3Cline x1='16' y1='15' x2='16' y2='15'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='11' width='18' height='10' rx='2'/%3E%3Ccircle cx='12' cy='5' r='2'/%3E%3Cline x1='12' y1='7' x2='12' y2='11'/%3E%3Cline x1='8' y1='15' x2='8' y2='15'/%3E%3Cline x1='16' y1='15' x2='16' y2='15'/%3E%3C/svg%3E"); }
.icon-settings    { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3Cpath d='M19.4 15a1.65 1.65 0 00.33 1.82l.06.06a2 2 0 010 2.83 2 2 0 01-2.83 0l-.06-.06a1.65 1.65 0 00-1.82-.33 1.65 1.65 0 00-1 1.51V21a2 2 0 01-4 0v-.09A1.65 1.65 0 009 19.4a1.65 1.65 0 00-1.82.33l-.06.06a2 2 0 01-2.83-2.83l.06-.06A1.65 1.65 0 004.68 15a1.65 1.65 0 00-1.51-1H3a2 2 0 010-4h.09A1.65 1.65 0 004.6 9a1.65 1.65 0 00-.33-1.82l-.06-.06a2 2 0 012.83-2.83l.06.06A1.65 1.65 0 009 4.68a1.65 1.65 0 001-1.51V3a2 2 0 014 0v.09a1.65 1.65 0 001 1.51 1.65 1.65 0 001.82-.33l.06-.06a2 2 0 012.83 2.83l-.06.06A1.65 1.65 0 0019.4 9a1.65 1.65 0 001.51 1H21a2 2 0 010 4h-.09a1.65 1.65 0 00-1.51 1z'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3Cpath d='M19.4 15a1.65 1.65 0 00.33 1.82l.06.06a2 2 0 010 2.83 2 2 0 01-2.83 0l-.06-.06a1.65 1.65 0 00-1.82-.33 1.65 1.65 0 00-1 1.51V21a2 2 0 01-4 0v-.09A1.65 1.65 0 009 19.4a1.65 1.65 0 00-1.82.33l-.06.06a2 2 0 01-2.83-2.83l.06-.06A1.65 1.65 0 004.68 15a1.65 1.65 0 00-1.51-1H3a2 2 0 010-4h.09A1.65 1.65 0 004.6 9a1.65 1.65 0 00-.33-1.82l-.06-.06a2 2 0 012.83-2.83l.06.06A1.65 1.65 0 009 4.68a1.65 1.65 0 001-1.51V3a2 2 0 014 0v.09a1.65 1.65 0 001 1.51 1.65 1.65 0 001.82-.33l.06-.06a2 2 0 012.83 2.83l-.06.06A1.65 1.65 0 0019.4 9a1.65 1.65 0 001.51 1H21a2 2 0 010 4h-.09a1.65 1.65 0 00-1.51 1z'/%3E%3C/svg%3E"); }
.icon-logout      { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 21H5a2 2 0 01-2-2V5a2 2 0 012-2h4'/%3E%3Cpolyline points='16 17 21 12 16 7'/%3E%3Cline x1='21' y1='12' x2='9' y2='12'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 21H5a2 2 0 01-2-2V5a2 2 0 012-2h4'/%3E%3Cpolyline points='16 17 21 12 16 7'/%3E%3Cline x1='21' y1='12' x2='9' y2='12'/%3E%3C/svg%3E"); }
.icon-target      { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Ccircle cx='12' cy='12' r='6'/%3E%3Ccircle cx='12' cy='12' r='2'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Ccircle cx='12' cy='12' r='6'/%3E%3Ccircle cx='12' cy='12' r='2'/%3E%3C/svg%3E"); }
.icon-trending    { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' 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"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' 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"); }
.icon-check       { -webkit-mask-image: 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='20 6 9 17 4 12'/%3E%3C/svg%3E"); mask-image: 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='20 6 9 17 4 12'/%3E%3C/svg%3E"); }
.icon-close       { -webkit-mask-image: 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'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E"); mask-image: 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'%3E%3Cline x1='18' y1='6' x2='6' y2='18'/%3E%3Cline x1='6' y1='6' x2='18' y2='18'/%3E%3C/svg%3E"); }
.icon-send        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='22' y1='2' x2='11' y2='13'/%3E%3Cpolygon points='22 2 15 22 11 13 2 9 22 2'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='22' y1='2' x2='11' y2='13'/%3E%3Cpolygon points='22 2 15 22 11 13 2 9 22 2'/%3E%3C/svg%3E"); }
.icon-timer       { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='13' r='8'/%3E%3Cpath d='M12 9v4l2 2'/%3E%3Cpath d='M5 3l-1 2'/%3E%3Cpath d='M19 3l1 2'/%3E%3Cpath d='M9 3h6'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='13' r='8'/%3E%3Cpath d='M12 9v4l2 2'/%3E%3Cpath d='M5 3l-1 2'/%3E%3Cpath d='M19 3l1 2'/%3E%3Cpath d='M9 3h6'/%3E%3C/svg%3E"); }
.icon-star        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolygon points='12 2 15.09 8.26 22 9.27 17 14.14 18.18 21.02 12 17.77 5.82 21.02 7 14.14 2 9.27 8.91 8.26 12 2'/%3E%3C/svg%3E"); }
.icon-flame       { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M8.5 14.5A2.5 2.5 0 0011 12c0-1.38-.5-2-1-3-1.072-2.143-.224-4.054 2-6 .5 2.5 2 4.9 4 6.5 2 1.6 3 3.5 3 5.5a7 7 0 11-14 0c0-1.153.433-2.294 1-3a2.5 2.5 0 002.5 3z'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M8.5 14.5A2.5 2.5 0 0011 12c0-1.38-.5-2-1-3-1.072-2.143-.224-4.054 2-6 .5 2.5 2 4.9 4 6.5 2 1.6 3 3.5 3 5.5a7 7 0 11-14 0c0-1.153.433-2.294 1-3a2.5 2.5 0 002.5 3z'/%3E%3C/svg%3E"); }
.icon-download    { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15v4a2 2 0 01-2 2H5a2 2 0 01-2-2v-4'/%3E%3Cpolyline points='7 10 12 15 17 10'/%3E%3Cline x1='12' y1='15' x2='12' y2='3'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15v4a2 2 0 01-2 2H5a2 2 0 01-2-2v-4'/%3E%3Cpolyline points='7 10 12 15 17 10'/%3E%3Cline x1='12' y1='15' x2='12' y2='3'/%3E%3C/svg%3E"); }
.icon-edit        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M11 4H4a2 2 0 00-2 2v14a2 2 0 002 2h14a2 2 0 002-2v-7'/%3E%3Cpath d='M18.5 2.5a2.121 2.121 0 013 3L12 15l-4 1 1-4 9.5-9.5z'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M11 4H4a2 2 0 00-2 2v14a2 2 0 002 2h14a2 2 0 002-2v-7'/%3E%3Cpath d='M18.5 2.5a2.121 2.121 0 013 3L12 15l-4 1 1-4 9.5-9.5z'/%3E%3C/svg%3E"); }
.icon-trash       { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='3 6 5 6 21 6'/%3E%3Cpath d='M19 6l-1 14a2 2 0 01-2 2H8a2 2 0 01-2-2L5 6'/%3E%3Cpath d='M10 11v6'/%3E%3Cpath d='M14 11v6'/%3E%3Cpath d='M9 6V4a1 1 0 011-1h4a1 1 0 011 1v2'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='3 6 5 6 21 6'/%3E%3Cpath d='M19 6l-1 14a2 2 0 01-2 2H8a2 2 0 01-2-2L5 6'/%3E%3Cpath d='M10 11v6'/%3E%3Cpath d='M14 11v6'/%3E%3Cpath d='M9 6V4a1 1 0 011-1h4a1 1 0 011 1v2'/%3E%3C/svg%3E"); }
.icon-search      { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E"); }
.icon-plus        { -webkit-mask-image: 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'%3E%3Cline x1='12' y1='5' x2='12' y2='19'/%3E%3Cline x1='5' y1='12' x2='19' y2='12'/%3E%3C/svg%3E"); mask-image: 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'%3E%3Cline x1='12' y1='5' x2='12' y2='19'/%3E%3Cline x1='5' y1='12' x2='19' y2='12'/%3E%3C/svg%3E"); }
.icon-eye        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z'/%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M1 12s4-8 11-8 11 8 11 8-4 8-11 8-11-8-11-8z'/%3E%3Ccircle cx='12' cy='12' r='3'/%3E%3C/svg%3E"); }
.icon-arrow-right { -webkit-mask-image: 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='5' y1='12' x2='19' y2='12'/%3E%3Cpolyline points='12 5 19 12 12 19'/%3E%3C/svg%3E"); mask-image: 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='5' y1='12' x2='19' y2='12'/%3E%3Cpolyline points='12 5 19 12 12 19'/%3E%3C/svg%3E"); }
.icon-chevron-down{ -webkit-mask-image: 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='6 9 12 15 18 9'/%3E%3C/svg%3E"); mask-image: 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='6 9 12 15 18 9'/%3E%3C/svg%3E"); }
.icon-bell        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 8A6 6 0 006 8c0 7-3 9-3 9h18s-3-2-3-9'/%3E%3Cpath d='M13.73 21a2 2 0 01-3.46 0'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 8A6 6 0 006 8c0 7-3 9-3 9h18s-3-2-3-9'/%3E%3Cpath d='M13.73 21a2 2 0 01-3.46 0'/%3E%3C/svg%3E"); }
.icon-mail        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z'/%3E%3Cpolyline points='22,6 12,13 2,6'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z'/%3E%3Cpolyline points='22,6 12,13 2,6'/%3E%3C/svg%3E"); }
.icon-lock        { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='11' width='18' height='11' rx='2' ry='2'/%3E%3Cpath d='M7 11V7a5 5 0 0110 0v4'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='11' width='18' height='11' rx='2' ry='2'/%3E%3Cpath d='M7 11V7a5 5 0 0110 0v4'/%3E%3C/svg%3E"); }
.icon-globe       { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='2' y1='12' x2='22' y2='12'/%3E%3Cpath d='M12 2a15.3 15.3 0 014 10 15.3 15.3 0 01-4 10 15.3 15.3 0 01-4-10 15.3 15.3 0 014-10z'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='12' cy='12' r='10'/%3E%3Cline x1='2' y1='12' x2='22' y2='12'/%3E%3Cpath d='M12 2a15.3 15.3 0 014 10 15.3 15.3 0 01-4 10 15.3 15.3 0 01-4-10 15.3 15.3 0 014-10z'/%3E%3C/svg%3E"); }
.icon-calendar    { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E"); }
.icon-users      { -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M17 21v-2a4 4 0 00-4-4H5a4 4 0 00-4 4v2'/%3E%3Ccircle cx='9' cy='7' r='4'/%3E%3Cpath d='M23 21v-2a4 4 0 00-3-3.87'/%3E%3Cpath d='M16 3.13a4 4 0 010 7.75'/%3E%3C/svg%3E"); mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M17 21v-2a4 4 0 00-4-4H5a4 4 0 00-4 4v2'/%3E%3Ccircle cx='9' cy='7' r='4'/%3E%3Cpath d='M23 21v-2a4 4 0 00-3-3.87'/%3E%3Cpath d='M16 3.13a4 4 0 010 7.75'/%3E%3C/svg%3E"); }
.icon-menu       { -webkit-mask-image: 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'%3E%3Cline x1='3' y1='6' x2='21' y2='6'/%3E%3Cline x1='3' y1='12' x2='21' y2='12'/%3E%3Cline x1='3' y1='18' x2='21' y2='18'/%3E%3C/svg%3E"); mask-image: 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'%3E%3Cline x1='3' y1='6' x2='21' y2='6'/%3E%3Cline x1='3' y1='12' x2='21' y2='12'/%3E%3Cline x1='3' y1='18' x2='21' y2='18'/%3E%3C/svg%3E"); }

/* ── Fuentes ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── Variables / Tokens ── */
:root {
  /* ── BASE ── */
  --bg-base:          #0d0d0f;
  --bg-surface:       #111116;
  --bg-elevated:      #18181f;

  /* ── GLASS ── */
  --glass-bg:         rgba(255, 255, 255, 0.04);
  --glass-bg-hover:   rgba(255, 255, 255, 0.07);
  --glass-border:     rgba(255, 255, 255, 0.08);
  --glass-blur:       blur(16px);
  --glass-blur-heavy: blur(24px);

  /* ── ACENTO (marca actual Enlace Escolar) ── */
  --accent:           #00c853;
  --accent-soft:      rgba(0, 200, 83, 0.15);
  --accent-glow:      rgba(0, 200, 83, 0.25);

  /* ── TEXTO ── */
  --text-primary:     rgba(255, 255, 255, 0.92);
  --text-secondary:   rgba(255, 255, 255, 0.55);
  --text-muted:       rgba(255, 255, 255, 0.30);
  --text-accent:      var(--accent);

  /* ── BORDES ── */
  --border-subtle:    rgba(255, 255, 255, 0.07);
  --border-medium:    rgba(255, 255, 255, 0.12);
  --border-card:      var(--glass-border);
  --border-focus:     rgba(0, 200, 83, 0.45);

  /* ── ESTADOS ── */
  --success:          #30d158;
  --warning:          #ffd60a;
  --danger:           #ff453a;
  --info:             #0a84ff;

  /* ── SOMBRAS ── */
  --shadow-card:      0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-float:     0 8px 40px rgba(0, 0, 0, 0.55);
  --shadow-glow:      0 0 20px var(--accent-glow);

  /* ── RADIOS ── */
  --radius-sm:        8px;
  --radius-md:        14px;
  --radius-lg:        20px;
  --radius-xl:        28px;

  /* ── TRANSICIONES ── */
  --transition:       all 0.2s cubic-bezier(0.4, 0, 0.2, 1);

  /* Compatibilidad con variables existentes */
  --bg-primary:       var(--bg-base);
  --bg-secondary:     var(--bg-surface);
  --bg-card:          var(--glass-bg);
  --bg-card-hover:    var(--glass-bg-hover);
  --bg-sidebar:       var(--bg-surface);
  --bg-input:         rgba(255, 255, 255, 0.05);
  --accent-hover:     #00b248;
  --accent-light:     rgba(0, 200, 83, 0.20);
  --green:            var(--accent);
  --green-mid:        #00b248;
  --green-soft:       rgba(0, 200, 83, 0.18);
  --green-glow:       var(--accent-glow);
  --green-dark:       #007a32;
  --green-neon:       #39ff8f;
  --blue:             #4f8ef7;
  --blue-soft:        #4f8ef718;
  --purple:           #9b6dff;
  --purple-soft:      #9b6dff18;
  --red:              #ff4f6b;
  --red-soft:         #ff4f6b18;
  --yellow:           #f5c542;
  --yellow-soft:      #f5c54218;
  --sidebar-w:        260px;
  --topbar-h:         64px;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-base);
  background-color: var(--bg-base);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; border: none; outline: none; }
input, textarea, select { font-family: inherit; outline: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--accent-soft); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-glow); }

/* ── Global Dark Glass Overrides ───────────────────────────── */
.card, [class*="card"], .panel, [class*="panel"],
.box, [class*="box"], .widget, [class*="widget"] {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.card:hover, [class*="card"]:hover {
  background: var(--glass-bg-hover);
  border-color: var(--border-medium);
}
input, textarea, select {
  background: rgba(255,255,255,0.05) !important;
  border: 1px solid var(--glass-border) !important;
  color: var(--text-primary) !important;
  border-radius: var(--radius-sm) !important;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 3px var(--accent-soft) !important;
  outline: none !important;
}
.btn-primary, [class*="btn-primary"] {
  background: var(--accent) !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  box-shadow: var(--shadow-glow) !important;
  transition: var(--transition) !important;
}
.btn-secondary, [class*="btn-secondary"],
.btn-outline, [class*="btn-outline"] {
  background: var(--glass-bg) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-md) !important;
  backdrop-filter: var(--glass-blur) !important;
}
nav, [class*="nav"], [class*="sidebar"],
header, [class*="header"], [class*="topbar"] {
  background: rgba(13,13,15,0.85) !important;
  backdrop-filter: var(--glass-blur-heavy) !important;
  border-bottom: 1px solid var(--border-subtle) !important;
  box-shadow: none !important;
}
table { border-collapse: collapse; width: 100%; }
thead tr { background: rgba(255,255,255,0.05); }
tbody tr:nth-child(even) { background: rgba(255,255,255,0.02); }
tbody tr:hover { background: var(--glass-bg-hover); }
td, th { border-bottom: 1px solid var(--border-subtle); color: var(--text-primary); }
.badge, [class*="badge"], .chip, [class*="chip"], .tag, [class*="tag"] {
  background: var(--accent-soft) !important;
  color: var(--accent) !important;
  border: 1px solid var(--accent-glow) !important;
  border-radius: 999px !important;
}
hr, [class*="divider"], [class*="separator"] {
  border-color: var(--border-subtle) !important;
  opacity: 1 !important;
}
.modal, [class*="modal"], [class*="dialog"] {
  background: var(--bg-elevated) !important;
  border: 1px solid var(--glass-border) !important;
  border-radius: var(--radius-xl) !important;
  backdrop-filter: var(--glass-blur-heavy) !important;
}
.modal-backdrop, [class*="overlay"] {
  background: rgba(0,0,0,0.7) !important;
  backdrop-filter: blur(4px) !important;
}

/* ============================================================
   LAYOUT SHELL
   ============================================================ */
.app-shell {
  display: grid;
  grid-template-columns: 60px 1fr;
  grid-template-rows: 56px 1fr;
  height: 100vh;
  overflow: hidden;
  background: var(--bg-primary);
}

/* Topbar ocupa toda la fila superior */
#topbar,
.topbar {
  grid-column: 1 / -1;
  grid-row: 1;
  z-index: 50;
  position: sticky;
  top: 0;
  height: 56px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  backdrop-filter: blur(12px);
}

/* Topbar del simulacro (reemplaza al global) */
.sim-topbar {
  grid-column: 1 / -1;
  grid-row: 1;
  height: 56px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 16px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-card);
  position: sticky;
  top: 0;
  z-index: 50;
}

/* Overlay cuando sidebar está expandida */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  top: 56px;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
  backdrop-filter: blur(2px);
}
.sidebar-overlay.visible {
  display: block;
}

.topbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
}
.topbar-logo .logo-icon {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--green-neon));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  box-shadow: var(--shadow-glow);
}
.topbar-logo .logo-text { color: var(--text-primary); }
.topbar-logo .logo-sub  { color: var(--text-muted); font-size: 0.7rem; font-weight: 400; }
.topbar-logo .logo-accent { color: #00c853; }

.topbar-spacer { flex: 1; }

.topbar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  width: 240px;
  transition: var(--transition);
}
.topbar-search:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.topbar-search input {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.85rem;
  width: 100%;
}
.topbar-search input::placeholder { color: var(--text-muted); }
.topbar-search .search-icon { color: var(--text-muted); font-size: 0.9rem; }

.topbar-actions { display: flex; align-items: center; gap: 8px; }

.icon-btn {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  transition: var(--transition);
  position: relative;
}
.icon-btn:hover { background: var(--bg-card); color: var(--text-primary); }
.icon-btn .badge {
  position: absolute;
  top: 4px; right: 4px;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  border: 2px solid var(--bg-secondary);
}

.avatar-btn {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #00c853, #007a32);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}
.avatar-btn:hover { border-color: var(--accent); box-shadow: var(--shadow-glow); }

/* Sidebar ocupa columna izquierda */
.sidebar {
  grid-column: 1;
  grid-row: 2;
  width: 60px;
  min-width: 60px;
  position: relative;
  z-index: 40;
  overflow: hidden;
  transition: width 0.25s ease;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-card);
  padding: 12px 0;
  display: flex;
  flex-direction: column;
}
.sidebar.expanded {
  width: 260px;
  position: absolute;
  top: 56px;
  left: 0;
  height: calc(100vh - 56px);
  z-index: 100;
  overflow-y: auto;
  padding: 20px 12px;
}

.sidebar-section-label {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  padding: 0 10px;
  margin: 20px 0 8px;
}
.sidebar-section-label:first-child { margin-top: 4px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  margin-bottom: 2px;
}
.nav-item:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}
.nav-item.active {
  background: #00c85315;
  color: #00c853;
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 3px;
  background: #00c853;
  border-radius: 0 3px 3px 0;
}
.nav-item .nav-icon { font-size: 1rem; width: 20px; text-align: center; flex-shrink: 0; }
.nav-item .nav-badge,
.sidebar .nav-item .badge-new {
  position: relative;
  margin-left: auto;
  font-size: 0.62rem;
  padding: 2px 7px;
  background: var(--accent);
  color: #000;
  border-radius: 99px;
  font-weight: 700;
}
.nav-item .nav-badge.green { background: var(--green); color: #000; }
.nav-item .nav-badge.blue  { background: var(--blue); color: #fff; }

/* Main content ocupa columna derecha */
.main-content {
  grid-column: 2;
  grid-row: 2;
  overflow-y: auto;
  padding: 24px 28px;
  height: calc(100vh - 56px);
  position: relative;
  z-index: 1;
  background: var(--bg-primary);
}

/* Opciones del simulacro: texto completo sin cortes */
.opciones-grid,
.opciones-list {
  width: 100%;
  max-width: 680px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.opcion-item,
.opcion-btn {
  width: 100%;
  white-space: normal;
  word-break: break-word;
  text-overflow: unset;
  overflow: visible;
}

/* Botón flotante KAIROM IA */
.fab-tutor {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #007a32);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: white;
  cursor: pointer;
  z-index: 90;
  box-shadow: 0 4px 20px var(--accent-glow);
  border: 1px solid var(--accent);
}
.page-tutor .fab-tutor {
  display: none;
}

/* ============================================================
   COMPONENTES BASE
   ============================================================ */

/* ── Page Header ── */
.page-header {
  margin-bottom: 28px;
}
.page-header h1 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}
.page-header p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}
.page-header .header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* ── Cards ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}
.card:hover { border-color: var(--border-focus); box-shadow: var(--shadow-float); }

.card-float {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-float);
  transition: var(--transition);
}
.card-float:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 48px #00000070;
  border-color: var(--accent-glow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
.card-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ── Stat Card ── */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--transition);
}
.stat-card:hover { border-color: var(--border-focus); transform: translateY(-1px); }

.stat-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }
.stat-value { font-size: 2rem; font-weight: 800; letter-spacing: -0.04em; color: var(--text-primary); }
.stat-value.accent { color: var(--accent); }
.stat-value.green  { color: var(--green); }
.stat-value.blue   { color: var(--blue); }
.stat-value.purple { color: var(--purple); }
.stat-change {
  font-size: 0.78rem;
  display: flex;
  align-items: center;
  gap: 4px;
}
.stat-change.up   { color: var(--green); }
.stat-change.down { color: var(--red); }
.stat-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.stat-icon.orange { background: var(--accent-soft); }
.stat-icon.blue   { background: var(--blue-soft); }
.stat-icon.green  { background: var(--green-soft); }
.stat-icon.purple { background: var(--purple-soft); }

/* ── NextGen universal card ── */
.nxg-card,
.card.nxg-card,
.quick-card.nxg-card,
.stat-card.nxg-card,
.plan-card.nxg-card,
.config-card.nxg-card,
.dist-card.nxg-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid transparent;
  background:
    linear-gradient(180deg, var(--bg-card) 0%, #0d0d0d 100%) padding-box,
    linear-gradient(135deg, transparent 0%, var(--accent-glow) 18%, var(--accent) 50%, var(--accent-glow) 82%, transparent 100%) border-box;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    inset 0 0 0 1px rgba(255, 255, 255, 0.02),
    0 14px 34px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition:
    transform 0.3s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.3s ease,
    background 0.3s ease;
}

.nxg-card::before,
.card.nxg-card::before,
.quick-card.nxg-card::before,
.stat-card.nxg-card::before,
.plan-card.nxg-card::before,
.config-card.nxg-card::before,
.dist-card.nxg-card::before {
  content: '';
  position: absolute;
  top: -92px;
  right: -76px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  opacity: 0.4;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 0;
}

.nxg-card > *,
.card.nxg-card > *,
.quick-card.nxg-card > *,
.stat-card.nxg-card > *,
.plan-card.nxg-card > *,
.config-card.nxg-card > *,
.dist-card.nxg-card > * {
  position: relative;
  z-index: 1;
}

.nxg-card:hover,
.card.nxg-card:hover,
.quick-card.nxg-card:hover,
.stat-card.nxg-card:hover,
.plan-card.nxg-card:hover,
.config-card.nxg-card:hover,
.dist-card.nxg-card:hover {
  transform: translateY(-4px);
  background:
    linear-gradient(180deg, var(--bg-card) 0%, #101010 100%) padding-box,
    linear-gradient(135deg, transparent 0%, var(--accent) 18%, #9df6c0 50%, var(--accent) 82%, transparent 100%) border-box;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    inset 0 0 0 1px rgba(255, 255, 255, 0.03),
    0 18px 44px rgba(0, 0, 0, 0.42),
    0 0 36px rgba(0, 200, 83, 0.14);
}

.nxg-card:hover::before,
.card.nxg-card:hover::before,
.quick-card.nxg-card:hover::before,
.stat-card.nxg-card:hover::before,
.plan-card.nxg-card:hover::before,
.config-card.nxg-card:hover::before,
.dist-card.nxg-card:hover::before {
  opacity: 0.7;
  transform: scale(1.08);
}

/* ── Botones ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid transparent;
  transition:
    transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    background 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    color 0.3s cubic-bezier(0.4, 0, 0.2, 1),
    filter 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
}
.btn-primary {
  background:
    linear-gradient(135deg, #00c853 0%, #00b248 55%, #007a32 100%) padding-box,
    linear-gradient(135deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.08)) border-box;
  color: white;
  border-color: transparent;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.14),
    0 0 0 1px rgba(0, 200, 83, 0.18),
    0 10px 24px rgba(0, 200, 83, 0.22),
    0 0 22px rgba(0, 200, 83, 0.18);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.75rem;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.18);
}
.btn-primary:hover {
  background:
    linear-gradient(135deg, #16d76a 0%, #00c853 50%, #00863b 100%) padding-box,
    linear-gradient(135deg, rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.1)) border-box;
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 0 0 1px rgba(0, 200, 83, 0.22),
    0 14px 30px rgba(0, 200, 83, 0.28),
    0 0 34px var(--accent-glow);
  filter: brightness(1.05);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.12),
    0 0 0 1px rgba(0, 200, 83, 0.18),
    0 8px 20px rgba(0, 200, 83, 0.2),
    0 0 18px rgba(0, 200, 83, 0.16);
}
.btn-secondary {
  background: rgba(91, 65, 168, 0.14);
  color: #d7c8ff;
  border-color: rgba(155, 109, 255, 0.3);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 8px 22px rgba(68, 42, 138, 0.16);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  background: rgba(107, 79, 200, 0.22);
  border-color: rgba(180, 154, 255, 0.52);
  color: #f3efff;
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.11),
    0 12px 28px rgba(89, 58, 170, 0.22),
    0 0 26px rgba(155, 109, 255, 0.18);
}
.btn-ghost {
  background: rgba(91, 65, 168, 0.08);
  color: #bca9f4;
  border-color: rgba(155, 109, 255, 0.2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  background: rgba(91, 65, 168, 0.16);
  border-color: rgba(155, 109, 255, 0.38);
  color: #f3efff;
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 10px 24px rgba(89, 58, 170, 0.16);
}
.btn-secondary:active,
.btn-ghost:active {
  transform: translateY(0);
}
.btn-danger { background: var(--red-soft); color: var(--red); border: 1px solid transparent; }
.btn-danger:hover { background: var(--red); color: white; }
.btn-sm { padding: 6px 14px; font-size: 0.72rem; border-radius: var(--radius-sm); }
.btn-lg { padding: 14px 28px; font-size: 0.82rem; border-radius: var(--radius-lg); }
.btn-icon { padding: 10px; border-radius: var(--radius-md); }
.btn[disabled] { opacity: 0.4; pointer-events: none; }

/* ── Badges ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}
.badge-orange { background: var(--accent-soft); color: var(--accent); }
.badge-green  {
  background: #00c85318;
  color: #00c853;
  border: 1px solid #00c85340;
}
.badge-blue   { background: var(--blue-soft);   color: var(--blue); }
.badge-red    { background: var(--red-soft);    color: var(--red); }
.badge-purple { background: var(--purple-soft); color: var(--purple); }
.badge-muted  { background: #1a1a1a0a; color: var(--text-muted); }

/* ── Progress Bar ── */
.progress-bar {
  height: 6px;
  background: var(--bg-input);
  border-radius: 99px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, #00c853, #39ff8f);
  transition: width 0.6s ease;
}
.progress-fill.blue   { background: linear-gradient(90deg, var(--blue), #7aadff); }
.progress-fill.green  { background: linear-gradient(90deg, var(--green), var(--green-neon)); }
.progress-fill.purple { background: linear-gradient(90deg, var(--purple), #c29bff); }

/* ── Inputs ── */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.form-input {
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: var(--transition);
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-input::placeholder { color: var(--text-muted); }
.form-select {
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235a5a72' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}
.form-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

/* ── Grids ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 20px 0;
}

/* ── Tag ── */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: 99px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
}
.tag:hover, .tag.selected {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Toast ── */
.toast-container {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 280px;
  box-shadow: var(--shadow-float);
  animation: slideIn 0.3s ease;
  font-size: 0.875rem;
}
.toast.success { border-left: 3px solid var(--green); }
.toast.error   { border-left: 3px solid var(--red); }
.toast.info    { border-left: 3px solid var(--blue); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ── Skeleton Loader ── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ── Chip row ── */
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }

/* ── Empty State ── */
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 12px; padding: 48px 24px;
  color: var(--text-muted); text-align: center;
}
.empty-state .empty-icon { font-size: 2.5rem; }
.empty-state p { font-size: 0.875rem; max-width: 280px; line-height: 1.6; }

/* ── Glow accent line ── */
.glow-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  margin: 24px 0;
  opacity: 0.4;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .app-shell { grid-template-columns: 1fr; grid-template-rows: 56px 1fr; }
  .sidebar { display: none; }
  .main-content { grid-column: 1; padding: 20px 16px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .topbar-search { display: none; }
}

/* ── Badge verde Kling ── */
.badge-green {
  background: #00c85318;
  color: #00c853;
  border: 1px solid #00c85340;
}

/* Glow verde para cards destacadas */
.glow-green {
  box-shadow: 0 0 24px #00c85330;
}

/* Botón verde neón especial (CTAs principales) */
.btn-neon {
  background: #00c853;
  color: #f0f0f0;
  font-weight: 800;
  box-shadow: 0 0 20px #00c85360;
  border: none;
}
.btn-neon:hover {
  background: #39ff8f;
  box-shadow: 0 0 32px #39ff8f80;
}

/* ── BOTONES INTERACTIVOS — BLINDAJE DE EVENTOS ── */
button,
input[type="button"],
input[type="submit"],
input[type="reset"],
.btn, [class*="btn"],
[class*="opcion"], [class*="option"],
[class*="selector"], [class*="chip"],
[class*="tag"], [class*="filtro"],
[class*="cantidad"], [class*="dificultad"],
[class*="tema"], [class*="eje"] {
  position: relative !important;
  z-index: 2 !important;
  pointer-events: auto !important;
  cursor: pointer !important;
}

/* ── PSEUDO-ELEMENTOS DECORATIVOS — NO BLOQUEAN CLICKS ── */
.card::before, .card::after,
[class*="card"]::before, [class*="card"]::after,
.panel::before, .panel::after,
[class*="panel"]::before, [class*="panel"]::after {
  pointer-events: none !important;
  z-index: 0 !important;
}

/* ── CONTENEDORES DE OPCIONES — STACKING CONTEXT LIMPIO ── */
.card, [class*="card"],
.panel, [class*="panel"] {
  isolation: isolate;
}

/* ── DIAGNÓSTICO: BLINDAJE DE CLICKS EN OPCIONES Y ACCIONES ── */
.diag-screen,
.diag-intro,
.diag-topbar,
.question-card,
.options-list,
.question-nav,
.result-wrap,
.eje-analysis,
.rec-list {
  position: relative;
  z-index: 3;
  pointer-events: auto;
}

.diag-screen button,
.diag-screen .option-btn,
.diag-screen .btn,
.diag-screen .skip-btn,
.diag-screen [class*="option"],
.diag-screen [class*="opcion"] {
  position: relative;
  z-index: 4;
  pointer-events: auto !important;
}

.diag-intro::before,
.diag-intro::after,
.result-hero::before,
.result-hero::after,
.question-card::before,
.question-card::after {
  pointer-events: none !important;
}

/* ── FOOTER MARCA ── */
.app-footer-marca {
  text-align: center;
  padding: 18px 0 10px;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.22);
  letter-spacing: 0.03em;
  border-top: 1px solid rgba(255,255,255,0.05);
  margin-top: 40px;
}

.app-footer-marca a {
  color: rgba(255,255,255,0.35);
  text-decoration: none;
  transition: color 0.2s ease;
}

.app-footer-marca a:hover {
  color: var(--accent);
  text-decoration: none;
}