:root{font-family:Inter,ui-sans-serif,system-ui,sans-serif;color:#172033;background:#f5f7fa;--surface:#fff;--line:#dce2ea;--muted:#647084;--primary:#2457a7;--radius:14px;--space:1rem}*{box-sizing:border-box}body{margin:0;background:#f5f7fa}a{color:#174f9b;text-underline-offset:3px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,textarea:focus-visible{outline:3px solid #f0a23b;outline-offset:2px}button,input,select,textarea{font:inherit}input,select,textarea{width:100%;padding:.72rem;border:1px solid #aeb8c7;border-radius:8px;background:#fff}textarea{min-height:7rem}button{cursor:pointer}.app-shell{min-height:100vh;display:grid;grid-template-columns:240px minmax(0,1fr)}.admin-nav,.student-sidebar{background:#152846;color:#fff;padding:1.5rem;position:-webkit-sticky;position:sticky;top:0;height:100vh}.admin-nav nav,.student-sidebar nav{display:flex;min-width:0;flex-direction:column;gap:.35rem}.admin-nav a,.mobile-nav a,.student-sidebar a{display:block;width:100%;min-width:0;color:#fff;text-decoration:none;padding:.65rem .75rem;border-radius:8px;overflow-wrap:anywhere;transition:background-color .15s ease,color .15s ease}.admin-nav a:hover,.mobile-nav a:hover,.student-sidebar a:hover{background:#ffffff14}.admin-nav a.nav-active,.admin-nav a.nav-active:hover,.mobile-nav a.nav-active,.mobile-nav a.nav-active:hover,.student-sidebar a.nav-active,.student-sidebar a.nav-active:hover{background:#ffffff26;color:#fff;font-weight:750;box-shadow:inset 3px 0 #f0a23baa}.brand{font-size:1.15rem;font-weight:800;margin-bottom:1.4rem}.mobile-nav{display:none}.app-content{min-width:0}.admin,.page,.practice-shell{max-width:1180px;margin:auto;padding:clamp(1rem,3vw,2.5rem)}.page-header{margin-bottom:1.5rem}.eyebrow{text-transform:uppercase;letter-spacing:.09em;font-weight:800;color:#315d96;font-size:.78rem}.card,.panel,.practice-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1rem,2.5vw,1.5rem);box-shadow:0 4px 16px #1720330a}.hero{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:2rem;border-left:5px solid var(--primary)}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:1rem;gap:1rem;margin:1rem 0 2rem}.actions,.row,.section-heading{display:flex;align-items:center;justify-content:space-between;gap:1rem}.metric{font-size:2rem;font-weight:800;margin:.5rem 0}.button,.primary{display:inline-block;border:0;border-radius:9px;background:var(--primary);color:#fff;text-decoration:none;font-weight:750;padding:.78rem 1.05rem}.primary:disabled{opacity:.55;cursor:wait}.empty{padding:1.5rem;border:1px dashed #aeb8c7;border-radius:var(--radius);background:#fff}.badge,.status{display:inline-flex;gap:.4rem;align-items:center;padding:.25rem .6rem;border-radius:999px;background:#edf1f6;font-size:.82rem;font-weight:750}.status-due,.status-needs_work,.status-not_ready{background:#fff1d5}.status-completed,.status-exam_ready,.status-mastered,.status-strong{background:#dff5e8}.status-active,.status-building,.status-developing,.status-in_progress{background:#e2efff}.form-stack{display:grid;grid-gap:1rem;gap:1rem}.form-stack label,label{display:grid;grid-gap:.4rem;gap:.4rem;font-weight:650}.check{display:flex;align-items:center}.check input{width:auto}.narrow{max-width:640px;margin:5vh auto;padding:1rem}.landing{min-height:100vh;display:grid;place-items:center;padding:2rem}.landing section{max-width:650px}.landing h1{font-size:clamp(2.5rem,8vw,5rem);margin:.2rem 0}.muted{color:var(--muted)}.announcement{padding:.75rem 1rem;background:#fff5ce;border-bottom:1px solid #ddc36a}.success{padding:.75rem;background:#dff5e8;border-radius:8px}.validation-error{padding:.75rem 1rem;border:1px solid #b42318;background:#fee4e2;color:#7a271a;border-radius:8px}.practice-shell{max-width:850px}.practice-card{margin:1rem 0}.history,.list,.practice-form{display:grid;grid-gap:1rem;gap:1rem}.progress{font-weight:750}.choice{display:flex;gap:.8rem;padding:1rem;margin:.65rem 0;border:2px solid var(--line);border-radius:10px;cursor:pointer}.choice input{width:1.2rem}.choice.selected{border-color:var(--primary);background:#edf5ff}.feedback{border-top:1px solid var(--line);margin-top:1.5rem;padding-top:1rem}fieldset{border:0;padding:0}table{width:100%;border-collapse:collapse;background:#fff}td,th{padding:.75rem;border-bottom:1px solid var(--line);text-align:left}.admin-shell{display:grid;grid-template-columns:260px minmax(0,1fr)}.admin-nav h1{font-size:1.15rem}.admin-nav h2{font-size:.75rem;text-transform:uppercase;color:#b9c8dd;margin:1.25rem .75rem .25rem}form.grid{display:grid;grid-template-columns:repeat(2,minmax(220px,1fr));grid-gap:1rem;gap:1rem;background:white;padding:1.25rem}.wide{grid-column:1/-1}.toolbar{display:flex;gap:.6rem;align-items:flex-end}.badge-active,.badge-approved,.badge-gold,.badge-verified{background:#dff5e8}.badge-draft,.badge-needs_changes,.badge-revalidation_required{background:#fff1d5}.badge-superseded{background:#ffe2e2}.admin>section>h1,.page-header h1,.practice-shell>h1{margin-top:0;margin-bottom:.5rem;font-size:clamp(1.7rem,3vw,2.25rem)}.advanced-panel{margin:1.5rem 0;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:1rem}.advanced-panel>summary{cursor:pointer;font-size:1.05rem;font-weight:800}.advanced-panel[open]>summary{margin-bottom:1rem}@media(max-width:760px){.admin-shell,.app-shell{display:block}.admin-nav,.student-sidebar{display:none}.mobile-nav{display:block;background:#152846;color:#fff;padding:.8rem 1rem;position:-webkit-sticky;position:sticky;top:0;z-index:5}.mobile-nav summary{cursor:pointer;font-weight:750}.mobile-nav nav{display:grid;grid-template-columns:1fr;grid-gap:.35rem;gap:.35rem;padding-top:.75rem}.mobile-nav a{padding:.55rem}.cards,form.grid{grid-template-columns:1fr}.hero,.row,.section-heading{align-items:flex-start;flex-direction:column}.wide{grid-column:auto}.page,.practice-shell{padding:1rem}table{display:block;overflow-x:auto}}.explanation-language-header{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin:0 0 .65rem}.explanation-language-header h2,.explanation-language-header strong{margin:0}.explanation-language-selector{width:auto;min-width:8.5rem;padding:.32rem 1.8rem .32rem .55rem;border-radius:7px;color:#35506d;font-size:.82rem;font-weight:700}.explanation-language-error{color:#8a1c13;font-size:.8rem}@media(max-width:420px){.explanation-language-header{align-items:flex-start;flex-wrap:wrap}.explanation-language-selector{width:100%}}.access-promotions-page{display:grid;grid-gap:1.25rem;gap:1.25rem}.access-page-header p{margin:.35rem 0}.admin-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1rem,2.5vw,1.5rem);box-shadow:0 4px 16px #1720330a}.admin-card h2,.admin-card h3{margin-top:0}.search-card{max-width:780px}.access-search{display:grid;grid-template-columns:minmax(260px,1fr) auto;align-items:end;grid-gap:.75rem;gap:.75rem}.history-details,.profile-grid,.review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:1rem;gap:1rem;margin:1rem 0 0}.history-details div,.profile-grid div,.review-grid div{min-width:0}.history-details dt,.profile-grid dt,.review-grid dt{color:var(--muted);font-size:.78rem;font-weight:800;text-transform:uppercase;letter-spacing:.04em}.history-details dd,.profile-grid dd,.review-grid dd{margin:.25rem 0 0;font-weight:700;overflow-wrap:anywhere}.access-pill{display:inline-flex;padding:.42rem .75rem;border-radius:999px;background:#edf1f6;font-weight:800}.access-pill-full{background:#dff5e8;color:#17643b}.access-source-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));grid-gap:.75rem;gap:.75rem}.access-source-grid article{display:grid;grid-gap:.3rem;gap:.3rem;border:1px solid var(--line);border-radius:10px;padding:1rem}.access-source-grid h3{font-size:.9rem;margin:0}.access-source-grid span{color:var(--muted);font-size:.9rem}.access-notice{border:1px solid #79a7df;border-left:5px solid var(--primary);border-radius:10px;background:#edf5ff;padding:1rem}.access-notice p{margin:.5rem 0 0}.duration-options{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:.75rem;gap:.75rem;margin:.65rem 0 1rem}.duration-option{display:flex;align-items:center;gap:.5rem;border:1px solid var(--line);border-radius:10px;padding:.85rem}.duration-option input{width:auto}.duration-option:has(input:checked){border-color:var(--primary);background:#edf5ff}.admin-card small{display:block;color:var(--muted);font-weight:500}.admin-review-panel{border:1px solid #79a7df;border-radius:12px;background:#f7faff;padding:1.25rem;margin-top:1rem}.form-actions,.history-actions{display:flex;align-items:center;gap:.75rem;margin-top:1rem}.history-cards{display:grid;grid-gap:1rem;gap:1rem}.history-card{border:1px solid var(--line);border-radius:12px;padding:1rem}.history-card h3{margin:0}.history-actions{justify-content:space-between}.history-actions details{max-width:100%}.history-actions summary{cursor:pointer;font-weight:700}.history-actions code{overflow-wrap:anywhere}@media(max-width:760px){.access-search,.duration-options,.history-details,.profile-grid,.review-grid{grid-template-columns:1fr}.history-actions{align-items:flex-start;flex-direction:column}}.learners-page{display:grid;grid-gap:1.25rem;gap:1.25rem}.learner-filters{display:grid;grid-template-columns:minmax(220px,1.5fr) repeat(3,minmax(150px,1fr)) auto;align-items:end;grid-gap:.75rem;gap:.75rem}.learner-filters label{display:grid;grid-gap:.4rem;gap:.4rem;font-weight:750}.directory-count{margin:0;color:var(--muted)}.learner-directory{display:grid;grid-gap:.8rem;gap:.8rem}.learner-row{display:grid;grid-template-columns:minmax(220px,.85fr) minmax(0,3fr) auto;align-items:center;grid-gap:1rem;gap:1rem;padding:1rem 1.15rem;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 4px 16px #1720330a;color:inherit;text-decoration:none}.learner-row:hover{border-color:#79a7df;background:#f9fbff}.learner-identity{display:grid;grid-gap:.25rem;gap:.25rem;overflow-wrap:anywhere}.field-context,.learner-identity span{display:block;color:var(--muted);font-size:.85rem}.learner-row-grid{display:grid;grid-template-columns:repeat(4,minmax(120px,1fr));grid-gap:.75rem;gap:.75rem;margin:0}.learner-row-grid dt{color:var(--muted);font-size:.72rem;font-weight:800;letter-spacing:.04em;text-transform:uppercase}.learner-row-grid dd{margin:.18rem 0 0;font-size:.9rem;font-weight:700;overflow-wrap:anywhere}.row-action{color:var(--primary);font-weight:800;white-space:nowrap}.pagination>div{display:flex;gap:1rem}.empty-copy,.empty-state{color:var(--muted)}.learner-profile-header,.section-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:1rem}.learner-profile-header h1{margin:.15rem 0}.profile-header-actions{align-items:center}.profile-header-actions,.trade-list{display:flex;gap:.75rem;flex-wrap:wrap}.free-state,.trade-list article{border:1px solid var(--line);border-radius:10px;padding:1rem}.free-state,.profile-footer-action{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:1rem}.activity-list{display:grid;grid-gap:.65rem;gap:.65rem;margin:0;padding:0;list-style:none}.activity-list li{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.85rem 0;border-bottom:1px solid var(--line)}.activity-list li:last-child{border-bottom:0}.activity-list li div{display:grid;grid-gap:.2rem;gap:.2rem}.activity-list span,.activity-list time{color:var(--muted);font-size:.9rem}.back-link{justify-self:start;font-weight:750}@media(max-width:1100px){.learner-filters{grid-template-columns:repeat(2,minmax(0,1fr))}.learner-row{grid-template-columns:1fr}.learner-row-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.row-action{justify-self:start}}@media(max-width:650px){.learner-filters,.learner-row-grid{grid-template-columns:1fr}.activity-list li,.free-state,.learner-profile-header,.profile-footer-action,.section-heading{align-items:flex-start;flex-direction:column}}.trial-code-success{display:grid;grid-gap:1rem;gap:1rem;padding:1.25rem;border:2px solid #79a7df;border-radius:12px;background:#edf5ff}.trial-code-success>p{margin:0}.trial-code-context{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));grid-gap:.75rem;gap:.75rem;margin:0}.trial-code-context dt{color:var(--muted);font-size:.75rem;font-weight:800;text-transform:uppercase}.trial-code-context dd{margin:.2rem 0 0;font-weight:750}.trial-code-panel{display:flex;align-items:center;gap:.85rem;flex-wrap:wrap;padding:1rem;border:2px solid #2457a7;border-radius:10px;background:#f7faff}.trial-code-panel code{font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:clamp(1rem,2.4vw,1.35rem);font-weight:800;letter-spacing:.04em;overflow-wrap:anywhere}.trial-copy-status{min-width:4rem;color:#17643b;font-weight:800}.retired-code-warning{display:inline-block;margin:.75rem 0 0;padding:.65rem .8rem;border:1px solid #c77c11;border-radius:8px;background:#fff1d5;color:#6d3b00;font-weight:850}@media(max-width:520px){.trial-code-panel{align-items:stretch;flex-direction:column}.trial-code-panel .primary{width:100%}}:root{color:#10243c;background:#f5f8f9;--line:#dbe5eb;--muted:#59697a;--primary:#0aa49b}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,textarea:focus-visible{outline-color:#43ddcf}.admin-nav,.mobile-nav,.student-sidebar{background:#031b33}.admin-nav a.nav-active,.admin-nav a.nav-active:hover,.mobile-nav a.nav-active,.mobile-nav a.nav-active:hover,.student-sidebar a.nav-active,.student-sidebar a.nav-active:hover{box-shadow:inset 3px 0 #43ddcf}.learner-action-primary,.learner-action-secondary{display:inline-flex;min-height:46px;align-items:center;justify-content:center;padding:.72rem 1rem;border-radius:9px;font:inherit;font-weight:800;text-decoration:none;cursor:pointer}.learner-action-primary{border:1px solid #234d7a;background:#2d5d92;color:#fff}.learner-action-secondary{border:1px solid #9fb2c5;background:#fff;color:#173a61}.learner-action-primary:disabled,.learner-action-secondary:disabled{opacity:.55;cursor:not-allowed}summary.learner-action-secondary{width:-moz-fit-content;width:fit-content;list-style:none}summary.learner-action-secondary::-webkit-details-marker{display:none}@media(max-width:520px){.learner-action-primary,.learner-action-secondary{width:100%;white-space:normal;text-align:center}}