:root{--ink:#161b29;--muted:#687083;--line:#dfe3ea;--paper:#fff;--canvas:#f4f6f8;--navy:#151b2b;--navy-soft:#222a3d;--accent:#f4b860;--accent-dark:#9a5d12;--success:#16785a;--shadow:0 24px 60px rgba(21,27,43,.12);font-family:Arial,sans-serif;color:var(--ink)}*{box-sizing:border-box}body{margin:0;background:var(--canvas)}button,input{font:inherit}.eyebrow{margin:0 0 12px;color:var(--accent-dark);font-size:.75rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase}.brand{display:flex;align-items:center;gap:12px;font-weight:800}.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--accent);color:var(--navy)}
.login-shell{min-height:100vh;display:grid;grid-template-columns:minmax(360px,.92fr) minmax(480px,1.08fr)}.login-panel{display:flex;flex-direction:column;padding:42px clamp(40px,6vw,96px);color:#fff;background:var(--navy)}.login-copy{margin:auto 0;max-width:540px}.login-copy .eyebrow{color:var(--accent)}.login-copy h1{margin:0 0 24px;font-size:clamp(2.5rem,5vw,5rem);line-height:1;letter-spacing:-.05em}.login-copy p:last-child{color:#bbc2d0;line-height:1.7}.login-footnote{color:#8d95a5;font-size:.85rem}.form-panel{display:grid;place-items:center;padding:48px}.login-card{width:min(100%,430px);padding:44px;border:1px solid var(--line);border-radius:24px;background:#fffffff0;box-shadow:var(--shadow)}.login-card-heading{margin-bottom:30px}.login-card-heading h2{margin:0 0 8px;font-size:2rem}.login-card-heading p:last-child{color:var(--muted)}label{display:block;margin:18px 0 8px;font-weight:700}.login-card input{width:100%;height:52px;padding:0 15px;border:1px solid var(--line);border-radius:12px}.password-row{display:flex;gap:8px}.reveal{border:1px solid var(--line);border-radius:12px;background:#fff}.field-error,.form-error{color:#a92d3c;font-size:.85rem}.form-error{min-height:20px}.primary-button{display:flex;justify-content:space-between;width:100%;height:54px;padding:0 20px;align-items:center;border:0;border-radius:12px;background:var(--navy);color:#fff;font-weight:700}.security-note{text-align:center;color:var(--muted);font-size:.8rem}
.dashboard{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column;width:260px;padding:30px 20px;color:#fff;background:var(--navy)}.sidebar nav{display:grid;gap:8px;margin-top:36px}.nav-item,.logout-button{padding:14px;border:0;border-radius:10px;color:#b8bfcc;background:transparent;text-decoration:none;font-weight:600}.nav-item.active{color:var(--navy);background:var(--accent)}.logout-button{margin-top:auto;text-align:left}.dashboard-main{margin-left:260px}.topbar{display:flex;justify-content:flex-end;align-items:center;height:82px;padding:0 4vw;border-bottom:1px solid var(--line);background:#fff}.user-chip{display:flex;align-items:center;gap:11px}.user-chip span:last-child{display:grid}.user-chip small{color:var(--muted)}.avatar{display:grid!important;place-items:center;width:42px;height:42px;border-radius:13px;background:var(--accent);font-weight:800}.workspace{max-width:1400px;margin:auto;padding:52px 4vw 80px}.welcome-row{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:42px}.welcome-row h1{margin:0 0 10px;font-size:clamp(2.2rem,4vw,3.5rem);letter-spacing:-.04em}.welcome-row p:last-child,.section-heading p,.activity-card p{color:var(--muted)}.date-block{padding:16px 19px;border-left:3px solid var(--accent);background:#fff}.date-block span{display:block;color:var(--muted);font-size:.75rem;text-transform:uppercase}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:48px}.tool-card,.activity-card{padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff}.tool-card h2{min-height:48px;font-size:1.1rem}.status{display:inline-block;padding:7px 10px;border-radius:999px;background:#f0f1f4;color:var(--muted);font-size:.75rem;font-weight:700}.status.ready{color:var(--success);background:#e7f4ef}.users-section{scroll-margin-top:20px}.section-heading h2{margin:0 0 6px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff}table{width:100%;border-collapse:collapse;font-size:.88rem}th,td{padding:14px;text-align:left;border-bottom:1px solid var(--line);white-space:nowrap}th{background:#f8f9fb;color:var(--muted);font-size:.75rem;text-transform:uppercase}.activity-card{display:flex;align-items:center;justify-content:space-between;gap:28px}.activity-card h2{margin:0 0 8px}
@media(max-width:800px){.login-shell{grid-template-columns:1fr}.login-panel{min-height:360px;padding:28px 24px}.login-copy{margin:auto 0}.form-panel{padding:30px 20px}.sidebar{position:static;width:auto;min-height:auto}.sidebar nav{margin:20px 0}.dashboard-main{margin-left:0}.topbar{display:none}.workspace{padding-top:32px}.welcome-row,.activity-card{align-items:flex-start;flex-direction:column}}@media(max-width:520px){.login-card{padding:28px 22px}.login-copy h1{font-size:2.6rem}.date-block{width:100%}}
.admin-forms{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0}.admin-card,.credentials-panel{padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff}.admin-card h3,.credentials-panel h3{margin-top:0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.admin-card input,.admin-card textarea,.user-toolbar input,.standalone-shell input{width:100%;padding:11px;border:1px solid var(--line);border-radius:9px}.admin-card textarea{resize:vertical}.compact{width:auto;padding:0 18px}.credentials-panel{margin:18px 0;border-color:#d4a45e}.secondary-button,.small-button{padding:8px 11px;border:1px solid var(--line);border-radius:8px;background:#fff}.credentials-panel>.secondary-button{margin-bottom:12px}.user-toolbar{display:flex;align-items:center;gap:12px;margin:24px 0 12px}.user-toolbar label{margin:0}.user-toolbar input{max-width:420px}.user-toolbar span{color:var(--muted)}.table-actions{display:flex;gap:6px}.action-message{min-height:20px;color:var(--success)}.standalone-shell{display:grid;place-items:center;min-height:100vh;padding:24px;background:linear-gradient(145deg,#fafbfc,#eef1f5)}.standalone-shell .login-card{max-width:520px}.brand.dark{color:var(--navy);margin-bottom:32px}.empty-message{padding:30px;border:1px dashed var(--line);border-radius:14px;background:#fff;color:var(--muted)}code{font-size:.85em}@media(max-width:900px){.admin-forms{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.user-toolbar{align-items:flex-start;flex-direction:column}.table-actions{min-width:180px;flex-wrap:wrap}}
.activity-link{color:inherit;text-decoration:none}.activity-shell{max-width:1280px;margin:auto;padding:28px 4vw 80px}.activity-header,.activity-hero,.form-actions{display:flex;align-items:center;justify-content:space-between;gap:24px}.activity-header .brand{margin:0;text-decoration:none}.activity-hero{margin:52px 0 28px}.activity-hero h1{margin:0;font-size:clamp(2rem,4vw,3.6rem);letter-spacing:-.04em}.activity-hero dl{display:flex;gap:12px}.activity-hero dl div{padding:12px 16px;border-left:3px solid var(--accent);background:#fff}.activity-hero dt{color:var(--muted);font-size:.72rem;text-transform:uppercase}.activity-hero dd{margin:4px 0 0;font-weight:700}.block-nav{display:flex;gap:8px;overflow:auto;margin-bottom:28px}.block-tab{padding:10px 18px;border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:700}.block-tab.available{cursor:pointer}.block-tab.available.active{background:var(--navy);color:#fff}.block-tab.coming_soon,.block-tab.locked{color:#969dac;background:#eef0f3}.form-layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:24px;align-items:start}.questions{display:grid;gap:18px}.question{position:relative;margin:0;padding:24px;border:1px solid var(--line);border-radius:16px;background:#fff}.question>legend{padding:0 100px 0 0;font-size:1.05rem;font-weight:700;line-height:1.5}.question-meta{position:absolute;top:24px;right:24px;color:var(--muted);font-size:.75rem}.question input[type=text],.question textarea{width:100%;margin-top:16px;padding:12px;border:1px solid var(--line);border-radius:9px}.choices{display:grid;gap:10px;margin-top:16px}.choices label{display:flex;gap:10px;align-items:center;margin:0;padding:12px;border:1px solid var(--line);border-radius:9px}.choices input{accent-color:var(--navy)}.char-counter,.unit{display:block;margin-top:6px;color:var(--muted);font-size:.78rem;text-align:right}.save-panel{position:sticky;top:24px;padding:20px;border:1px solid var(--line);border-radius:14px;background:#fff}.save-panel span{display:block;margin-top:4px;color:var(--muted);font-size:.8rem}.save-panel p{color:var(--muted);font-size:.85rem;line-height:1.5}.form-actions{margin-top:24px}.choice-matrix{display:grid;gap:1px;margin-top:18px;overflow:hidden;border:1px solid var(--line);border-radius:12px;background:var(--line)}.matrix-row{display:grid;grid-template-columns:minmax(190px,1.5fr) repeat(3,minmax(110px,1fr));align-items:stretch;margin:0;padding:0;border:0;background:#fff}.matrix-row>*{display:flex;align-items:center;justify-content:center;min-height:54px;margin:0;padding:10px;border-right:1px solid var(--line);text-align:center}.matrix-row>legend{justify-content:flex-start;font-size:.9rem;font-weight:700;text-align:left}.matrix-row label{cursor:pointer}.matrix-row label span{display:none}.matrix-header{background:#f7f8fa;color:var(--muted);font-size:.75rem;font-weight:700}.progress-summary>div:first-child{display:flex;justify-content:space-between;gap:16px}.progress-summary span{color:var(--muted)}@media(max-width:800px){.activity-header,.activity-hero{align-items:flex-start;flex-direction:column}.activity-hero dl{flex-direction:column;width:100%}.form-layout{grid-template-columns:1fr}.save-panel{position:static;grid-row:1}.question>legend{padding-right:0}.question-meta{position:static;display:block;margin-top:8px}.matrix-header{display:none}.matrix-row{grid-template-columns:1fr}.matrix-row>legend{min-height:auto;background:#f7f8fa}.matrix-row label{justify-content:flex-start;gap:9px;min-height:44px}.matrix-row label span{display:inline}.progress-summary>div:first-child{align-items:flex-start;flex-direction:column;gap:4px}}
.progress-summary{margin:-8px 0 24px;padding:16px 18px;border:1px solid var(--line);border-radius:14px;background:#fff}.progress-track{height:9px;margin-top:10px;overflow:hidden;border-radius:999px;background:#e8ebf0}.progress-track span{display:block;width:0;height:100%;border-radius:inherit;background:var(--accent);transition:width .2s ease}

/* Teacher tools home */
.teacher-home{--teacher-ink:#13231e;--teacher-muted:#64736d;--teacher-line:#dce4e0;--teacher-paper:#fff;--teacher-canvas:#f3f6f3;--teacher-green:#153f32;--teacher-green-2:#235c49;--teacher-mint:#dff0e8;--teacher-lime:#cbe66f;--teacher-sand:#f4ebd7;background:var(--teacher-canvas);color:var(--teacher-ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.teacher-shell{min-height:100vh}.teacher-sidebar{position:fixed;inset:0 auto 0 0;z-index:3;display:flex;flex-direction:column;width:272px;padding:32px 22px;background:var(--teacher-green);color:#fff}.teacher-brand{display:flex;align-items:center;gap:13px;color:#fff;text-decoration:none}.teacher-brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--teacher-lime);color:var(--teacher-green);font-size:1.05rem;font-weight:900}.teacher-brand>span:last-child{display:grid;gap:2px}.teacher-brand small{color:#a9c5ba;font-size:.72rem;font-weight:500;letter-spacing:.04em}.teacher-nav{display:grid;gap:8px;margin-top:54px}.teacher-nav-item{display:flex;align-items:center;gap:12px;padding:13px 15px;border-radius:11px;color:#bad0c7;text-decoration:none;font-weight:650}.teacher-nav-item span{width:22px;font-size:1.15rem;text-align:center}.teacher-nav-item:hover{color:#fff;background:#ffffff0d}.teacher-nav-item.active{color:var(--teacher-green);background:var(--teacher-mint)}.teacher-sidebar-foot{display:grid;gap:18px;margin-top:auto}.private-indicator{display:flex;align-items:center;gap:9px;padding:12px 14px;border:1px solid #ffffff1c;border-radius:12px;color:#bdd0c9;font-size:.79rem}.private-indicator i{width:8px;height:8px;border-radius:50%;background:var(--teacher-lime);box-shadow:0 0 0 4px #cbe66f1c}.teacher-logout{padding:12px 14px;border:0;background:transparent;color:#a9c5ba;text-align:left;font:inherit;font-size:.86rem;font-weight:650;cursor:pointer}.teacher-logout:hover{color:#fff}.teacher-main{min-height:100vh;margin-left:272px}.teacher-topbar{display:flex;align-items:center;justify-content:space-between;height:86px;padding:0 clamp(28px,4vw,68px);border-bottom:1px solid var(--teacher-line);background:#ffffffd9;backdrop-filter:blur(10px)}.teacher-topbar>div:first-child{display:grid;gap:3px}.teacher-topbar>div:first-child strong{font-size:.94rem}.topbar-label{color:var(--teacher-muted);font-size:.7rem;font-weight:750;letter-spacing:.12em;text-transform:uppercase}.teacher-user-chip .avatar{background:var(--teacher-mint);color:var(--teacher-green)}.teacher-user-chip small{font-size:.72rem}.teacher-workspace{width:min(1420px,100%);margin:auto;padding:clamp(38px,5vw,78px) clamp(26px,5vw,74px) 90px}.teacher-hero{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(240px,.55fr);gap:clamp(28px,6vw,90px);align-items:end;padding-bottom:clamp(46px,6vw,80px);border-bottom:1px solid var(--teacher-line)}.teacher-hero-copy{max-width:860px}.teacher-kicker{margin:0 0 13px;color:var(--teacher-green-2);font-size:.75rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.teacher-hero h1{max-width:820px;margin:0;font-size:clamp(2.7rem,5.8vw,5.8rem);font-weight:680;line-height:.98;letter-spacing:-.065em}.teacher-hero-copy>p:last-child{max-width:680px;margin:27px 0 0;color:var(--teacher-muted);font-size:1.08rem;line-height:1.75}.teacher-date-card{padding:24px 0 6px 26px;border-left:3px solid var(--teacher-lime)}.teacher-date-card span,.teacher-date-card small{display:block;color:var(--teacher-muted)}.teacher-date-card span{margin-bottom:8px;font-size:.68rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.teacher-date-card strong{display:block;font-size:1.15rem;line-height:1.45;text-transform:capitalize}.teacher-date-card small{margin-top:9px;font-size:.78rem}.teacher-tools{padding:clamp(46px,6vw,76px) 0}.teacher-section-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:26px}.teacher-section-heading h2,.teacher-roadmap h2{margin:0;font-size:clamp(2rem,3vw,3rem);letter-spacing:-.04em}.tool-count{padding:8px 12px;border-radius:999px;background:var(--teacher-mint);color:var(--teacher-green);font-size:.75rem;font-weight:750}.teacher-tool-grid{display:grid;grid-template-columns:minmax(0,1.75fr) minmax(260px,.75fr);gap:20px}.featured-tool-card,.empty-tool-card{min-height:330px;border-radius:24px}.featured-tool-card{display:flex;flex-direction:column;justify-content:space-between;padding:30px;background:var(--teacher-green);color:#fff;box-shadow:0 22px 54px rgba(21,63,50,.13)}.featured-tool-top,.tool-card-foot{display:flex;align-items:center;justify-content:space-between;gap:20px}.tool-icon{display:grid;place-items:center;width:48px;height:48px;border-radius:14px;background:var(--teacher-lime);color:var(--teacher-green);font-size:1.35rem;font-weight:800}.status.building{background:#ffffff14;color:#d9e8e2}.tool-overline{margin:34px 0 8px;color:var(--teacher-lime);font-size:.7rem;font-weight:800;letter-spacing:.13em;text-transform:uppercase}.featured-tool-card h3{max-width:700px;margin:0;font-size:clamp(1.8rem,3vw,3rem);line-height:1.08;letter-spacing:-.04em}.featured-tool-card>div>p:last-child{max-width:690px;margin:18px 0 0;color:#bad0c7;line-height:1.65}.tool-card-foot{margin-top:38px;padding-top:20px;border-top:1px solid #ffffff1a;color:#bdd0c9;font-size:.82rem}.round-arrow{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#fff;color:var(--teacher-green);font-size:1.1rem}.empty-tool-card{display:grid;place-items:center;align-content:center;padding:35px;border:1px dashed #bdcbc5;background:#ffffff78;text-align:center}.empty-tool-plus{display:grid;place-items:center;width:54px;height:54px;margin-bottom:18px;border:1px solid var(--teacher-line);border-radius:17px;background:#fff;color:var(--teacher-green);font-size:1.7rem}.empty-tool-card h3{margin:0 0 10px}.empty-tool-card p{max-width:310px;margin:0;color:var(--teacher-muted);line-height:1.6}.teacher-roadmap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(420px,1.15fr);gap:clamp(36px,7vw,110px);padding:clamp(38px,5vw,66px);border-radius:26px;background:var(--teacher-sand)}.roadmap-copy>p:last-child{max-width:520px;color:#6d6a61;line-height:1.7}.roadmap-steps{display:grid;gap:0;margin:0;padding:0;list-style:none}.roadmap-steps li{display:grid;grid-template-columns:46px 1fr;gap:15px;padding:18px 0;border-bottom:1px solid #d9ccb1}.roadmap-steps li:last-child{border-bottom:0}.roadmap-steps li>span{color:var(--teacher-green-2);font-size:.76rem;font-weight:850}.roadmap-steps li>div{display:grid;gap:5px}.roadmap-steps small{color:#787269;line-height:1.45}@media(max-width:980px){.teacher-sidebar{position:static;width:auto}.teacher-nav{display:flex;margin:28px 0}.teacher-sidebar-foot{display:flex;align-items:center;justify-content:space-between}.teacher-main{margin-left:0}.teacher-tool-grid,.teacher-roadmap{grid-template-columns:1fr}}@media(max-width:680px){.teacher-sidebar{padding:24px 20px}.teacher-nav{overflow:auto}.private-indicator{display:none}.teacher-topbar{height:76px;padding:0 20px}.teacher-topbar>div:first-child{display:none}.teacher-workspace{padding:38px 20px 60px}.teacher-hero{grid-template-columns:1fr}.teacher-hero h1{font-size:clamp(2.5rem,13vw,4rem)}.teacher-date-card{padding-top:8px}.teacher-section-heading{align-items:flex-start;flex-direction:column;gap:14px}.featured-tool-card,.empty-tool-card{min-height:300px;padding:24px}.teacher-roadmap{padding:28px 22px}.teacher-user-chip small{display:none}}
.teacher-home .teacher-date-card strong{text-transform:none}
.featured-tool-link{color:#fff;text-decoration:none;transition:transform .18s ease,box-shadow .18s ease}.featured-tool-link:hover{transform:translateY(-3px);box-shadow:0 28px 62px rgba(21,63,50,.2)}.featured-tool-link:focus-visible{outline:3px solid var(--teacher-lime);outline-offset:4px}

/* Paleta azul del espacio docente. Se conservan los nombres internos de las variables para no romper componentes existentes. */
.teacher-home{--teacher-ink:#14213d;--teacher-muted:#667085;--teacher-line:#dbe3ef;--teacher-canvas:#f4f7fb;--teacher-green:#173b6c;--teacher-green-2:#2864a8;--teacher-mint:#e3efff;--teacher-lime:#79b8ff;--teacher-sand:#edf3fb}
.teacher-home .teacher-brand small,.teacher-home .teacher-logout{color:#b7c9df}.teacher-home .teacher-nav-item{color:#bfd0e4}.teacher-home .private-indicator,.teacher-home .tool-card-foot{color:#c2d2e5}.teacher-home .featured-tool-card>div>p:last-child{color:#c3d3e6}.teacher-home .featured-tool-card{box-shadow:0 22px 54px rgba(23,59,108,.15)}.teacher-home .featured-tool-link:hover{box-shadow:0 28px 62px rgba(23,59,108,.22)}
.teacher-home .roadmap-copy>p:last-child,.teacher-home .roadmap-steps small{color:#667085}.teacher-home .roadmap-steps li{border-bottom-color:#d5dfec}.teacher-home .upload-slot.dragging{box-shadow:0 0 0 4px #2864a813}.teacher-home .upload-summary>div{background:#f8faff}
.teacher-home .teacher-tool-grid{grid-template-columns:1fr;gap:18px}
.teacher-home .featured-tool-card{width:min(100%,780px);min-height:190px;margin-inline:auto;padding:21px 26px}
.teacher-home .featured-tool-card .tool-overline{margin-top:22px}
.teacher-home .featured-tool-card h3{font-size:clamp(1.4rem,2vw,2rem)}
.teacher-home .featured-tool-card>div>p:last-child{margin-top:12px}
.teacher-home .featured-tool-card .tool-card-foot{margin-top:24px;padding-top:16px}
.teacher-home .tfm-tool-card{background:#7a3f35;box-shadow:0 22px 54px rgba(122,63,53,.14)}
.teacher-home .tfm-tool-card .tool-icon{width:auto;min-width:48px;padding:0 10px;background:#ffd79d;color:#5a2b23;font-size:.76rem;letter-spacing:.08em}
.teacher-home .tfm-tool-card .status.building{background:#ffffff18;color:#ffe8c7}
.teacher-home .tfm-tool-card .tool-overline{color:#ffd79d}
.teacher-home .tfm-tool-card>div>p:last-child,.teacher-home .tfm-tool-card .tool-card-foot{color:#f1d3ca}
.teacher-home .tfm-tool-card .round-arrow{background:#fff4e2;color:#5a2b23}