/* Shared visual language: public index, academic workspace and student experience. */
:root{--navy:#071a4d;--blue:#0867c8;--cyan:#20c6df;--purple:#6843dc;--orange:#ff7a18;--primary:#0867c8;--primary-dark:#074ca0;--primary-soft:#eaf4ff;--primary-light:#eaf4ff;--primary-soft-2:#f2f7ff;--bg-body:#f3f6fc;--bg-soft:#f7f9fe;--white:#fff;--text-dark:#172444;--text-muted:#64718a;--border:#dce4f0;--border-light:#e7edf6;--sidebar-width:270px;--sidebar-w:270px;--topbar-height:76px;--topbar-h:76px;--radius:18px;--shadow:0 12px 35px #1237720a;--app-focus:#087ad6;--ease:cubic-bezier(.2,.7,.25,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:'DM Sans',system-ui,sans-serif}button,input,select,textarea{font:inherit}h1,h2,h3,.brand-text{font-family:'Manrope','DM Sans',sans-serif}a,button,input,textarea,select{-webkit-tap-highlight-color:transparent}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--app-focus);outline-offset:3px}button:disabled{cursor:wait;opacity:.65}img,canvas,svg{max-width:100%}
.app-teacher{margin:0;color:var(--text-dark);background:radial-gradient(ellipse at 90% 0,#e6efff 0,transparent 45%),var(--bg-body);font-size:16px;line-height:1.55;overflow-x:clip}
.app-teacher .dashboard-shell{min-height:100dvh}.app-teacher .main-area{margin-left:270px;min-height:100dvh;min-width:0}.app-teacher .content-wrapper{padding:30px clamp(18px,2.7vw,44px) 50px;max-width:1680px;margin-inline:auto;min-width:0}
.app-teacher .sidebar{position:fixed;inset:0 auto 0 0;width:270px;height:100vh;height:100dvh;z-index:1100;display:flex;flex-direction:column;background:linear-gradient(165deg,#071a4d,#09285f 65%,#0c346d);color:#dae7ff;border:0;box-shadow:5px 0 30px #061b4110;overflow:hidden;transform:none}
.app-teacher .sidebar-brand{display:flex;align-items:center;justify-content:space-between;min-height:76px;padding:0 22px;border-bottom:1px solid #ffffff13;flex-shrink:0}.app-teacher .brand{display:flex;align-items:center;gap:10px;text-decoration:none}.app-teacher .brand-icon{width:39px;height:39px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,#17a5fa,#6843dc);color:white;box-shadow:0 6px 20px #00113040}.app-teacher .brand-text{font-size:1.03rem;font-weight:800;color:white}.app-teacher .brand-text span{color:#75c9ff;font-weight:600}
.app-teacher .sidebar-user{display:flex;align-items:center;gap:11px;margin:19px 15px 12px;padding:13px;background:#ffffff09;border:1px solid #ffffff15;border-radius:15px;flex-shrink:0}.app-teacher .sidebar-avatar{width:38px;height:38px;flex:0 0 38px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,#187dd1,#8b64e5);color:#fff;font-weight:800}.app-teacher .sidebar-user-info{min-width:0;flex:1}.app-teacher .sidebar-user-info strong{display:block;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:.84rem;color:#fff}.app-teacher .sidebar-user-info span{font-size:.69rem;color:#a2b9dc}.app-teacher .sidebar-online{width:7px;height:7px;background:#33d0ad;border-radius:50%;box-shadow:0 0 0 4px #33d0ad15}
.app-teacher .sidebar-nav{flex:1;min-height:0;overflow:auto;padding:0 12px 18px;scrollbar-width:thin;scrollbar-color:#375881 transparent}.app-teacher .nav-label{padding:17px 12px 8px;font-size:.61rem!important;letter-spacing:.13em;font-weight:700;color:#8faace}.app-teacher .nav-item{display:flex;align-items:center;gap:11px;min-height:43px;padding:10px 12px;margin:3px 0;border-radius:11px;text-decoration:none;color:#c3d2ea;font-size:.79rem;font-weight:500;transition:background .2s,transform .2s,color .2s}.app-teacher .nav-item:hover{background:#ffffff0c;color:#fff;transform:translateX(3px)}.app-teacher .nav-item.active{background:linear-gradient(105deg,#1676d455,#8059eb30);box-shadow:inset 3px 0 #43bcff;color:#fff}.app-teacher .nav-icon{width:22px;flex:0 0 22px;text-align:center;color:#8dc5ff}.app-teacher .nav-item.active .nav-icon{color:#69d9ff}.app-teacher .nav-badge{margin-left:auto;background:#ffffff12;border:0;color:#9ed8ff;border-radius:6px;padding:1px 7px;font-size:.68rem}.app-teacher .course-shortcuts{padding-bottom:2px}.app-teacher .nav-course-name{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.app-teacher .course-dot,.app-teacher .nav-context-dot{width:6px;height:6px;flex:0 0 6px;border-radius:50%;background:#4bd1df}.app-teacher .nav-context-dot{margin-left:auto;background:#ffc061}.app-teacher .current-course-mini{display:flex;gap:9px;margin:10px 5px;padding:12px;border:1px solid #ffffff17;border-radius:12px;background:#ffffff06}.app-teacher .current-course-mini small{font-size:.58rem;color:#a5b9d8;letter-spacing:.08em}.app-teacher .current-course-mini strong{display:block;max-width:185px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#ecf4ff;font-size:.75rem}.app-teacher .sidebar-footer{padding:13px 16px;border-top:1px solid #ffffff14;background:#061b4333;flex-shrink:0}.app-teacher .sidebar-footer form{margin:0}.app-teacher .logout-link{width:100%;display:flex;align-items:center;justify-content:flex-start;gap:12px;padding:11px 13px;color:#b9cbea;background:transparent;border:0;border-radius:9px;font-size:.78rem;text-decoration:none;cursor:pointer}.app-teacher .logout-link:hover{background:#ffffff0b;color:white}.app-teacher .sidebar-close{display:none;color:#dceaff;background:#ffffff0c;border:0;border-radius:10px;width:38px;height:38px}
.app-teacher .topbar{position:sticky;top:0;z-index:900;height:76px;min-height:76px;padding:0 clamp(18px,2.7vw,44px);display:flex;align-items:center;justify-content:space-between;gap:12px;background:#ffffffdc;border-bottom:1px solid #dee7f3;backdrop-filter:blur(18px);box-shadow:0 3px 18px #0b265005}.app-teacher .topbar-left,.app-teacher .topbar-right{display:flex;align-items:center;gap:13px;min-width:0}.app-teacher .topbar-title{min-width:0}.app-teacher .topbar-title strong{display:block;font-family:Manrope,sans-serif;font-size:.97rem;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;max-width:48vw;color:var(--text-dark)}.app-teacher .topbar-kicker{font-size:.59rem!important;font-weight:800;letter-spacing:.13em;color:#8391a9}.app-teacher .topbar-user{display:flex;align-items:center;gap:10px;font-size:.78rem;color:var(--text-muted)}.app-teacher .topbar-user span{max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.app-teacher .topbar-avatar{display:grid;place-items:center;background:#eef3fd;border:1px solid #e0e9fa;border-radius:12px;width:36px;height:36px;color:#3a66b6;font-weight:800}.app-teacher .theme-toggle,.app-teacher .menu-toggle{width:39px;height:39px;border-radius:11px;border:1px solid var(--border);background:var(--white);color:var(--text-dark);font-size:1.15rem;cursor:pointer;display:grid;place-items:center}.app-teacher .menu-toggle{display:none}.app-teacher .sidebar-overlay{display:none}
.app-teacher .hero-panel{border:0;border-radius:22px;background:radial-gradient(ellipse at 90% 20%,#2f55c5aa,transparent 55%),linear-gradient(115deg,#081a4b,#11376f);box-shadow:0 15px 35px #09265217;color:#fff}.app-teacher .hero-panel h1{color:#fff}.app-teacher .hero-panel p{color:#c5d5f1}.app-teacher .stat-card,.app-teacher .quick-card,.app-teacher .course-card,.app-teacher .panel,.app-teacher .form-card,.app-teacher .profile-stat-card{border-color:var(--border-light);border-radius:18px;box-shadow:0 6px 25px #173f7007}.app-teacher .stat-card{position:relative;overflow:hidden}.app-teacher .stat-card:after{content:'';position:absolute;inset:auto 0 0;height:3px;background:linear-gradient(90deg,#1685e5,#45d3ed)}.app-teacher .stat-card:nth-child(2):after{background:linear-gradient(90deg,#7353de,#c19fff)}.app-teacher .stat-card:nth-child(3):after{background:linear-gradient(90deg,#169e89,#60debd)}.app-teacher .stat-card:nth-child(4):after{background:linear-gradient(90deg,#ef872d,#ffc464)}
.app-teacher :is(.btn-primary,.btn-save,.btn-submit,.btn-create,.btn-guardar,.btn-add-eval){background:linear-gradient(115deg,#0876d2,#19a3ef);color:white;border:0;box-shadow:0 5px 14px #0876d220;transition:transform .2s,box-shadow .2s}.app-teacher :is(.btn-primary,.btn-save,.btn-submit,.btn-create,.btn-guardar):hover{transform:translateY(-2px);box-shadow:0 9px 20px #0876d22b}.app-teacher :is(input,select,textarea){max-width:100%;font-size:.92rem}.app-teacher :is(input:not([type=checkbox]):not([type=radio]):not([type=hidden]),select,textarea){border-color:var(--border);border-radius:10px}.app-teacher input::placeholder,.app-teacher textarea::placeholder{color:#8996ab}.app-teacher :is(.help-text,.form-help,.student-meta){font-size:.76rem!important;line-height:1.6}.app-teacher .page-breadcrumb,.app-teacher .breadcrumb{display:flex!important;flex-wrap:wrap;font-size:.73rem;margin-bottom:10px;color:var(--text-muted)}
.app-teacher :is(.table-responsive,.table-wrapper,.results-table-wrapper,.rubric-table-wrapper){max-width:100%;overflow-x:auto;overscroll-behavior-x:contain}.app-teacher :is(.content-wrapper,.panel,.form-card,.stat-card,.card-body){min-width:0}.app-teacher :is(.edit-question-modal,.delete-question-modal,.profile-modal-overlay,.modal-overlay){z-index:2000}.app-teacher :is(.edit-question-modal-card,.modal-card,.profile-modal){max-width:calc(100vw - 28px);max-height:calc(100dvh - 28px);overflow-y:auto}.app-teacher .nav-item,.app-teacher .logout-link{font-size:.79rem}.app-teacher :is(.stats-grid,.quick-grid,.profiles-workspace,.questions-workspace){gap:18px}
.app-student{font-family:'DM Sans',sans-serif;color:var(--text-dark);background:radial-gradient(ellipse at 10% 0,#dceeff 0,transparent 45%),radial-gradient(ellipse at 95% 80%,#eee6ff 0,transparent 50%),#f5f8fe;min-height:100dvh}.app-student :is(.card,.question-card,.result-card,.join-card,.access-card){border-radius:20px;border-color:#e0e8f4;box-shadow:0 14px 40px #1237720a}.app-student :is(.card-header,.btn-primary,.btn-submit){background:linear-gradient(120deg,#082963,#146ed1);color:#fff}.app-student :is(input,select,textarea){font-size:16px}.app-student .timer-bar{backdrop-filter:blur(14px);background:#fffffff0}.app-student .question-points{background:#f0ebff;color:#6542ba}.app-student .option-item{border-radius:12px;transition:border-color .2s,background .2s}.app-student .option-item:has(input:checked){background:#eaf4ff;border-color:#1788e4;box-shadow:0 0 0 1px #1788e4}.app-student .question-text{overflow-wrap:anywhere}.exam-save-status{padding:14px 17px;margin-bottom:20px;background:#e9f7f3;color:#176455;border:1px solid #cfeadf;border-radius:12px;font-size:.84rem;line-height:1.55}
.app-toast{position:fixed;right:24px;bottom:24px;z-index:5000;max-width:min(430px,calc(100vw - 32px));padding:16px 22px;background:#092b57;color:#fff;border:1px solid #3e83be;border-radius:14px;box-shadow:0 12px 40px #061b4133;font-size:.9rem;line-height:1.5;opacity:0;transform:translateY(15px);pointer-events:none;transition:.25s}.app-toast.show{opacity:1;transform:none}.app-toast[data-type=error]{background:#7e273c;border-color:#ce7185}.app-reveal{animation:app-enter .48s var(--ease) both;animation-delay:var(--reveal-delay,0ms)}@keyframes app-enter{from{opacity:.15;transform:translateY(12px)}to{opacity:1;transform:none}}
.app-error{margin:0;min-height:100dvh;display:grid;place-items:center;padding:24px;background:radial-gradient(ellipse at top,#e3efff,#f4f6fc);color:#172444}.error-card{background:white;border:1px solid #e3eaf6;max-width:560px;padding:38px;border-radius:24px;box-shadow:0 25px 70px #071a4d10}.error-card h1{font-size:1.75rem;line-height:1.25;margin:14px 0}.error-card p{line-height:1.7;color:#61708b}.error-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:15px;background:#fff0dc;color:#b3691d;font-size:1.8rem;font-weight:bold}.error-card button{display:block;padding:13px 21px;border:0;border-radius:10px;background:#0867c8;color:white;margin:24px 0 15px;cursor:pointer}.error-card a{color:#0867c8}.error-card .eyebrow{font-size:.7rem;letter-spacing:.15em;font-weight:bold}
.app-teacher.dark{--white:#132442;--bg-body:#0a152b;--bg-soft:#0e1d35;--text-dark:#e4ecfb;--text-muted:#a5b4d0;--border:#2b3b58;--border-light:#243450;--primary-soft:#152e50;--primary-light:#152e50;--primary-soft-2:#142743;background:#0a152b;color:var(--text-dark)}.app-teacher.dark .topbar{background:#102039ed;border-color:#263955}.app-teacher.dark :is(.panel,.form-card,.stat-card,.course-card,.quick-card,.eval-item,.card,.content-card,.profile-stat-card,.questions-form-card,.student-card,.tool-card,.modal-card,.edit-question-modal-card,.profile-modal){background:var(--white);border-color:var(--border-light);color:var(--text-dark)}.app-teacher.dark :is(input,textarea,select){background:#0e1e35;color:#e4ecfb;border-color:#314663}.app-teacher.dark :is(h1,h2,h3,h4,.topbar-title strong,.student-name,.stat-value){color:#e4ecfb}.app-teacher.dark .sidebar{background:linear-gradient(165deg,#071a3b,#0b254d)}.app-teacher.dark .theme-toggle{background:#162c4c;color:#e4ecfb}.app-teacher.dark :is(.panel-head,.card-header,.course-header){background:#152946;border-color:#2a3c59}.app-teacher.dark .topbar-avatar{background:#1a3658;color:#aed6ff;border-color:#2d4b71}
@media(min-width:901px){.app-teacher .sidebar{transform:none!important}.app-teacher .sidebar-overlay{display:none!important}.app-teacher.app-menu-open{overflow:auto}.app-teacher .sidebar-close,.app-teacher .menu-toggle{display:none!important}}
@media(max-width:1100px){.app-teacher .topbar-user span{display:none}.app-teacher .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:900px){.app-teacher .main-area{margin-left:0}.app-teacher .sidebar{width:min(290px,calc(100vw - 48px));transform:translateX(-105%);transition:transform .26s var(--ease)}.app-teacher.app-menu-open{overflow:hidden}.app-teacher.app-menu-open .sidebar{transform:translateX(0)}.app-teacher .sidebar-overlay{display:block;position:fixed;inset:0;z-index:1050;background:#06142b75;backdrop-filter:blur(3px);opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}.app-teacher.app-menu-open .sidebar-overlay{opacity:1;visibility:visible}.app-teacher .sidebar-close,.app-teacher .menu-toggle{display:grid;place-items:center}.app-teacher .topbar{height:68px;min-height:68px;padding-inline:18px}.app-teacher .content-wrapper{padding:22px 18px 36px}.app-teacher .topbar-title strong{max-width:53vw}.app-teacher :is(.hero-panel,.hero-actions){flex-wrap:wrap}}
@media(max-width:600px){.app-teacher .content-wrapper{padding:18px 14px 32px}.app-teacher .topbar{padding-inline:14px;gap:8px}.app-teacher .topbar-right{gap:7px}.app-teacher .topbar-user{display:none}.app-teacher .topbar-title strong{font-size:.84rem;max-width:55vw}.app-teacher .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.app-teacher .stat-card{padding:15px;min-height:110px;gap:10px}.app-teacher .stat-icon{width:36px;height:36px;font-size:1rem}.app-teacher .hero-panel{padding:24px 20px;border-radius:18px}.app-teacher .hero-panel h1{font-size:1.6rem}.app-teacher :is(.quick-grid,.profiles-workspace,.questions-workspace){grid-template-columns:minmax(0,1fr)}.app-teacher :is(input,select,textarea){font-size:16px}.app-teacher :is(.btn-primary,.btn-submit,.btn-save,.btn-cancel){min-height:44px}.app-student .timer-bar{padding-inline:14px}.app-student .question-card{padding:18px}.app-toast{right:16px;bottom:16px}.error-card{padding:26px}}
@media(max-width:360px){.app-teacher .stats-grid{grid-template-columns:minmax(0,1fr)}.app-teacher .topbar-title strong{max-width:49vw}.app-teacher .content-wrapper{padding-inline:10px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto!important}*,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}.app-reveal{opacity:1;transform:none}}
@media print{.sidebar,.topbar,.sidebar-overlay,.app-toast{display:none!important}.app-teacher .main-area{margin:0!important}.app-teacher,.app-student{background:#fff!important;color:#111!important}.app-teacher .content-wrapper{padding:0!important}}

.app-teacher .sidebar-nav{overflow-x:hidden}.app-teacher .nav-course-name{min-width:0;flex:1}

.app-teacher.dark :is(.ia-card,.panel-card,.edit-card,.evaluation-dialog,.delete-question-card,.system-dialog,.session-card,.board-card,.traffic-card,.projector-stat,.projector-access,.projector-board,.idea-card,.traffic-result,.results-header,.session-selector,.result-stat,.result-section,.idea-result,.empty,.filters,.rubric-table,.edit-question){background:#132442;color:#e4ecfb;border-color:#2b3b58}
.app-teacher.dark :is(.ia-card,.panel-card,.edit-card,.result-section,.board-card) :is(label,legend,strong,th){color:#dce7fb}
.app-teacher.dark :is(.edit-btn-cancel,.delete-btn-cancel,.eval-modal-btn,.result-btn,.action-btn,.back-button,.header-action,.library-btn){background:#1a3153;color:#dce7fb;border-color:#365074}
.app-teacher.dark :is(.edit-fv-option,.type-choice,.course-box,.option-letter){background:#1a3153;color:#dce7fb;border-color:#365074}
.app-teacher.dark :is(.card-heading,.quick-label,.form-help,.result-empty) :is(span,p),.app-teacher.dark .quick-label{color:#b4c5df}