@import "https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400;1,500&display=swap";:root{--petroleo-900:#001d27;--petroleo-800:#012c3a;--petroleo-700:#013243;--petroleo-600:#0a4b5f;--petroleo-500:#1d657c;--petroleo-300:#7ba3b1;--petroleo-100:#dbe7eb;--petroleo-50:#eff5f7;--laranja-700:#b93714;--laranja-600:#d1421a;--laranja-500:#ea4d20;--laranja-300:#f59074;--laranja-200:#fbc9ba;--laranja-50:#fdeee9;--ciano-600:#0490b5;--ciano-500:#05b5e5;--ciano-200:#a8e6f6;--ciano-50:#e6f7fd;--branco:#fff;--cinza-50:#f7f9fa;--cinza-100:#eef1f2;--cinza-200:#dfe4e6;--cinza-300:#c3cbcf;--cinza-500:#7c8a90;--cinza-700:#4a575c;--success-500:#1f8a5f;--success-50:#e7f5ef;--warning-500:#c98a00;--warning-50:#fdf4e0;--danger-500:#c0341c;--danger-50:#fbeae6;--info-500:var(--ciano-500);--info-50:var(--ciano-50);--text-body:var(--petroleo-700);--text-heading:var(--petroleo-700);--text-muted:var(--cinza-700);--text-subtle:var(--cinza-500);--text-accent:var(--laranja-500);--text-on-dark:var(--branco);--text-on-dark-muted:var(--petroleo-300);--text-link:var(--petroleo-700);--text-link-hover:var(--laranja-500);--surface-page:var(--branco);--surface-card:var(--branco);--surface-muted:var(--cinza-50);--surface-tint:var(--petroleo-50);--surface-inverse:var(--petroleo-700);--surface-inverse-deep:var(--petroleo-900);--surface-accent:var(--laranja-500);--border-default:var(--cinza-200);--border-strong:var(--petroleo-300);--border-inverse:#ffffff38;--graphic-detail:var(--ciano-500);--graphic-rule:var(--laranja-500);--focus-ring:var(--ciano-500);--font-sans:"Poppins",-apple-system,"Segoe UI",sans-serif;--font-display:var(--font-sans);--fw-light:300;--fw-regular:400;--fw-medium:500;--fw-semibold:600;--fw-bold:700;--fs-display:clamp(2.75rem,5vw,4.25rem);--fs-h1:2.5rem;--fs-h2:2rem;--fs-h3:1.5rem;--fs-h4:1.25rem;--fs-lead:1.1875rem;--fs-body:1rem;--fs-small:.875rem;--fs-label:.75rem;--lh-tight:1.1;--lh-heading:1.2;--lh-body:1.6;--lh-relaxed:1.75;--tracking-display:-.02em;--tracking-heading:-.01em;--tracking-body:0;--tracking-label:.08em;--tracking-eyebrow:.14em;--space-0:0;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:40px;--space-8:56px;--space-9:72px;--space-10:96px;--space-11:128px;--gutter:24px;--section-y:var(--space-10);--container-max:1200px;--container-narrow:760px;--radius-xs:4px;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-xl:32px;--radius-pill:999px;--radius-mark:28% 0 28% 0 / 28% 0 28% 0;--shadow-xs:0 1px 2px #01324314;--shadow-sm:0 2px 6px #01324314;--shadow-md:0 6px 20px #0132431a;--shadow-lg:0 18px 48px #01324324;--shadow-inset-line:inset 0 -1px 0 var(--border-default);--ring-focus:0 0 0 3px #05b5e573;--dur-fast:.12s;--dur-base:.2s;--dur-slow:.32s;--ease-standard:cubic-bezier(.2,.6,.2,1);--ease-out:cubic-bezier(0,.6,.3,1);--ease-in-out:cubic-bezier(.5,0,.3,1)}*,:before,:after{box-sizing:border-box}body{font-family:var(--font-sans);font-size:var(--fs-body);line-height:var(--lh-body);color:var(--text-body);background:var(--surface-page);-webkit-font-smoothing:antialiased;margin:0}h1,h2,h3,h4{font-weight:var(--fw-semibold);color:var(--text-heading);line-height:var(--lh-heading);letter-spacing:var(--tracking-heading);margin:0}h1{font-size:var(--fs-h1)}h2{font-size:var(--fs-h2)}h3{font-size:var(--fs-h3)}h4{font-size:var(--fs-h4);font-weight:var(--fw-medium)}p{margin:0 0 var(--space-4);text-wrap:pretty}a{color:var(--text-link);text-underline-offset:3px;transition:color var(--dur-fast) var(--ease-standard);text-decoration:underline;text-decoration-thickness:1px}a:hover{color:var(--text-link-hover)}:focus-visible{outline:2px solid var(--focus-ring);outline-offset:2px}.eyebrow{font-size:var(--fs-label);font-weight:var(--fw-medium);letter-spacing:var(--tracking-eyebrow);text-transform:uppercase;color:var(--text-accent)}.lead{font-size:var(--fs-lead);line-height:var(--lh-relaxed);color:var(--text-muted)}.container{max-width:var(--container-max);padding-inline:var(--gutter);margin:0 auto}html{--app-content-gutter:clamp(16px, 1.6vw, 28px);--app-page-title-size:clamp(2rem, 2.5vw, 2.65rem);--app-page-section-gap:clamp(16px, 1.4vw, 24px);min-width:320px;min-height:100%}body{min-width:320px;min-height:100vh}button,input,textarea,select{font:inherit}button{cursor:pointer}.access-page{background:var(--surface-page);grid-template-columns:minmax(0,1.05fr) minmax(430px,.95fr);min-height:100vh;display:grid}.access-intro{min-height:100vh;color:var(--text-on-dark);background:var(--surface-inverse-deep);flex-direction:column;justify-content:space-between;padding:clamp(32px,5vw,72px);display:flex;position:relative;overflow:hidden}.access-intro:before{content:"";border:46px solid #05b5e524;border-radius:50%;width:310px;height:310px;position:absolute;bottom:10%;right:-110px}.access-intro:after{background:var(--graphic-rule);content:"";width:4px;height:26%;position:absolute;bottom:0;right:14%}.brand-identity{z-index:1;width:max-content;color:var(--branco);font-size:1.55rem;font-weight:var(--fw-bold);letter-spacing:.035em;align-items:center;gap:13px;display:flex;position:relative}.brand-identity img{border-radius:8px;width:48px;height:48px}.brand-identity span span{color:var(--laranja-500)}.access-intro>div{z-index:1;max-width:670px;position:relative}.access-intro .eyebrow{color:var(--ciano-500);margin-bottom:16px}.access-intro h1{max-width:650px;color:var(--text-on-dark);letter-spacing:var(--tracking-display);font-size:clamp(2.45rem,5vw,4.25rem)}.intro-copy{max-width:580px;color:var(--petroleo-100);font-size:var(--fs-lead);line-height:var(--lh-relaxed);margin-top:28px}.intro-footnote{z-index:1;max-width:570px;color:var(--text-on-dark-muted);font-size:var(--fs-small);margin:0;position:relative}.access-panel{place-items:center;padding:clamp(28px,6vw,80px);display:grid}.form-wrap{width:min(100%,440px)}.form-wrap>.eyebrow{margin-bottom:12px}.form-wrap h2{font-size:clamp(1.8rem,3vw,2.45rem)}.form-description{color:var(--text-muted);margin:14px 0 34px}form{flex-direction:column;display:flex}label{color:var(--text-heading);font-size:var(--fs-small);font-weight:var(--fw-semibold);margin-bottom:8px}input{border:1px solid var(--border-default);width:100%;min-height:52px;color:var(--text-body);background:var(--surface-card);transition:border-color var(--dur-fast) var(--ease-standard), box-shadow var(--dur-fast) var(--ease-standard);border-radius:8px;padding:12px 15px}input::placeholder{color:var(--text-subtle)}input:hover{border-color:var(--border-strong)}input:focus{border-color:var(--ciano-600);box-shadow:0 0 0 3px var(--ciano-50);outline:0}select{border:1px solid var(--border-default);width:100%;min-height:52px;color:var(--text-body);background:var(--surface-card);border-radius:8px;padding:11px 38px 11px 14px}select:focus{border-color:var(--ciano-600);box-shadow:0 0 0 3px var(--ciano-50);outline:0}.field-hint{color:var(--text-subtle);font-size:var(--fs-small);margin:8px 0 0}.primary-button{min-height:52px;color:var(--text-on-dark);background:var(--laranja-500);font-weight:var(--fw-semibold);transition:background var(--dur-fast) var(--ease-standard), transform var(--dur-fast) var(--ease-standard);border:0;border-radius:8px;margin-top:24px;padding:12px 22px}.primary-button:hover:not(:disabled){background:var(--laranja-600)}.primary-button:active:not(:disabled){transform:translateY(1px)}.primary-button:disabled{cursor:not-allowed;opacity:.55}.text-button,.back-button{color:var(--text-link);font-size:var(--fs-small);text-underline-offset:3px;background:0 0;border:0;align-self:center;margin-top:18px;padding:4px;text-decoration:underline}.back-button{color:var(--text-muted);margin-top:10px;text-decoration:none}.feedback{font-size:var(--fs-small);border-left:3px solid;margin:14px 0 0;padding:11px 13px}.feedback.error{border-color:var(--danger-500);color:var(--danger-500);background:var(--danger-50)}.feedback.notice{border-color:var(--info-500);color:var(--petroleo-700);background:var(--info-50)}.loading{place-items:center;min-height:100vh;display:grid}.loading span{border:3px solid var(--petroleo-100);border-top-color:var(--ciano-500);border-radius:50%;width:36px;height:36px;animation:.8s linear infinite spin}.reset-page{background:var(--petroleo-50);place-items:center;min-height:100vh;padding:24px;display:grid}.reset-card{border-top:4px solid var(--laranja-500);background:var(--surface-card);width:min(100%,470px);box-shadow:var(--shadow-md);border-radius:0 0 12px 12px;padding:clamp(28px,6vw,50px)}.reset-card>img{width:170px;margin-bottom:42px}.reset-card h1{margin:8px 0 12px;font-size:clamp(2rem,6vw,2.65rem)}.reset-card>p:not(.eyebrow){color:var(--text-muted)}.reset-card form{margin-top:26px}.reset-card form label:not(:first-child){margin-top:16px}@keyframes spin{to{transform:rotate(360deg)}}.authenticated-shell{background:var(--surface-muted);min-height:100vh;padding:clamp(20px,4vw,48px)}.authenticated-header{color:var(--text-muted);font-size:var(--fs-small);justify-content:space-between;align-items:center;gap:20px;display:flex}.authenticated-header img{width:170px}.welcome-card,.page-surface{border-top:4px solid var(--graphic-rule);background:var(--surface-card);width:100%;box-shadow:var(--shadow-md);border-radius:0 0 12px 12px;margin:0;padding:clamp(20px,2vw,30px)}.welcome-card h1,.home-page h1{font-size:var(--app-page-title-size);margin:7px 0 14px}.welcome-card p:last-child,.home-page>p:last-of-type{color:var(--text-muted)}.home-progress{border:1px solid var(--border-default);border-top:3px solid var(--laranja-500);background:var(--surface-card);box-shadow:var(--shadow-xs);border-radius:0 0 10px 10px;gap:10px;margin:24px 0 0;padding:18px 20px;display:grid}.home-progress-heading{justify-content:space-between;align-items:end;gap:16px;display:flex}.home-progress-heading .eyebrow{margin:0 0 4px}.home-progress-heading h2{color:var(--text-heading);margin:0;font-size:1.05rem}.home-progress-heading>strong{color:var(--petroleo-700);font-size:1.55rem;line-height:1}.home-progress-track{background:var(--cinza-100);border-radius:999px;height:9px;overflow:hidden}.home-progress-track i{border-radius:inherit;background:var(--ciano-500);height:100%;transition:width var(--dur-normal) var(--ease-standard);display:block}.home-progress>p{color:var(--text-muted);font-size:var(--fs-small);margin:0}.secondary-button{border:1px solid var(--petroleo-700);min-height:44px;color:var(--petroleo-700);font-weight:var(--fw-semibold);background:0 0;border-radius:8px;margin-top:12px;padding:10px 18px}.app-layout{background:var(--surface-muted);grid-template-columns:250px minmax(0,1fr);min-height:100vh;display:grid}.app-sidebar{height:100vh;color:var(--text-on-dark);background:var(--surface-inverse-deep);flex-direction:column;padding:28px 18px 22px;display:flex;position:sticky;top:0}.app-sidebar>img{filter:none;width:min(100%,205px);height:auto}.app-sidebar nav{flex-direction:column;gap:1px;margin-top:34px;display:flex}.app-sidebar nav button{width:100%;min-height:40px;color:var(--petroleo-100);text-align:left;background:0 0;border:0;border-radius:7px;align-items:center;gap:12px;padding:9px 12px;display:flex}.app-sidebar nav button svg{color:var(--petroleo-300);flex:none}.app-sidebar nav button:hover,.app-sidebar nav button.active{color:var(--branco);background:var(--petroleo-700)}.app-sidebar nav button:hover svg,.app-sidebar nav button.active svg{color:var(--ciano-200)}.app-sidebar nav button.active{box-shadow:inset 3px 0 var(--ciano-500)}.nav-section-label{color:var(--text-on-dark-muted);font-size:.68rem;font-weight:var(--fw-semibold);letter-spacing:.1em;text-transform:uppercase;margin:18px 12px 4px}.sidebar-account{border-top:1px solid var(--border-inverse);flex-direction:column;margin-top:auto;padding-top:20px;display:flex}.sidebar-account span{font-weight:var(--fw-semibold);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.sidebar-account small{color:var(--text-on-dark-muted);margin-top:3px}.sidebar-account button{color:var(--ciano-200);text-underline-offset:3px;background:0 0;border:0;align-self:flex-start;margin-top:14px;padding:0;text-decoration:underline}.app-content{min-width:0;padding:var(--app-content-gutter)}.app-content .welcome-card,.app-content .page-surface{margin-top:0}.admin-users{max-width:1400px;margin:0 auto}.page-heading{justify-content:space-between;align-items:flex-end;gap:var(--app-page-section-gap);display:flex}.page-heading h1{font-size:var(--app-page-title-size);letter-spacing:var(--tracking-heading);line-height:var(--lh-heading);margin:5px 0 7px}.page-heading p:last-child{color:var(--text-muted);margin:0}.primary-button.compact{white-space:nowrap;width:auto;min-height:44px;margin:0;padding:10px 18px}.create-user-panel{border:1px solid var(--border-default);background:var(--surface-card);box-shadow:var(--shadow-sm);border-radius:10px;grid-template-columns:minmax(180px,1fr) minmax(220px,1.2fr) auto auto;align-items:end;gap:16px;margin-top:28px;padding:22px;display:grid}.field-group{flex-direction:column;display:flex}.check-field{min-height:44px;font-weight:var(--fw-regular);align-items:center;gap:9px;margin:0;display:flex}.check-field input,.select-cell input{width:17px;min-height:17px;accent-color:var(--petroleo-700)}.users-toolbar{justify-content:space-between;align-items:center;gap:20px;min-height:68px;margin-top:32px;display:flex}.search-form{flex-direction:row;width:min(100%,520px);display:flex}.search-form input{border-radius:8px 0 0 8px}.search-form button{color:var(--text-on-dark);background:var(--petroleo-700);font-weight:var(--fw-semibold);border:0;border-radius:0 8px 8px 0;padding:0 18px}.batch-actions{color:var(--text-muted);font-size:var(--fs-small);align-items:center;gap:8px;display:flex}.batch-actions button,.row-actions button{border:1px solid var(--border-default);color:var(--text-body);background:var(--surface-card);white-space:nowrap;border-radius:6px;padding:7px 9px;font-size:.78rem}.batch-actions button:hover,.row-actions button:hover{border-color:var(--border-strong)}.batch-actions button:disabled,.row-actions button:disabled{cursor:not-allowed;opacity:.5}.table-scroll{border:1px solid var(--border-default);background:var(--surface-card);border-radius:10px;margin-top:14px;overflow-x:auto}table{border-collapse:collapse;width:100%;min-width:980px}th{border-bottom:1px solid var(--border-default);color:var(--text-muted);background:var(--cinza-50);font-size:var(--fs-label);font-weight:var(--fw-semibold);letter-spacing:var(--tracking-label);text-align:left;text-transform:uppercase;padding:13px 14px}td{border-bottom:1px solid var(--cinza-100);color:var(--text-muted);font-size:var(--fs-small);vertical-align:middle;padding:15px 14px}tbody tr:last-child td{border-bottom:0}td strong,td>span{display:block}td strong{color:var(--text-heading)}td strong+span{color:var(--text-subtle);margin-top:3px}.select-cell{text-align:center;width:46px}.role-list{gap:5px;display:flex}.role-list span,.status-pill{background:var(--petroleo-50);font-size:.74rem;font-weight:var(--fw-medium);border-radius:999px;padding:4px 8px;display:inline-flex}.role-list .admin-role{color:var(--laranja-700);background:var(--laranja-50)}.status-pill.active{color:var(--success-500);background:var(--success-50)}.status-pill.blocked{color:var(--danger-500);background:var(--danger-50)}.row-actions{justify-content:flex-end;gap:6px;display:flex}.row-actions .danger-link{color:var(--danger-500)}.table-state{border:1px dashed var(--border-default);color:var(--text-muted);background:var(--surface-card);text-align:center;border-radius:10px;margin-top:14px;padding:42px 20px}.result-count{color:var(--text-subtle);font-size:var(--fs-small);margin-top:12px}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;clip-path:inset(50%);width:1px;height:1px;position:absolute;overflow:hidden}.welcome-actions{flex-wrap:wrap;gap:10px;display:flex}.admin-catalog{max-width:1240px;margin:0 auto}.catalog-create-row{grid-template-columns:1fr 1fr;gap:18px;margin-top:30px;display:grid}.catalog-create-row form,.book-controls form,.inline-create{border:1px solid var(--border-default);background:var(--surface-card);border-radius:9px;padding:18px}.catalog-create-row form>div,.book-controls form>div,.inline-create>div{display:flex}.catalog-create-row input,.book-controls input,.inline-create input{border-radius:7px 0 0 7px}.catalog-create-row button,.book-controls form button,.inline-create button,.activity-create>button{color:var(--text-on-dark);background:var(--petroleo-700);font-weight:var(--fw-semibold);border:0;border-radius:0 7px 7px 0;padding:0 17px}.catalog-tree{flex-direction:column;gap:14px;margin-top:28px;display:flex}.book-editor{border:1px solid var(--border-default);background:var(--surface-card);box-shadow:var(--shadow-sm);border-radius:11px;overflow:hidden}.book-editor.archived,.chapter-editor.archived,.activity-row.archived{opacity:.72}.book-editor-header,.chapter-editor>header{grid-template-columns:36px minmax(180px,1fr) auto auto;align-items:center;gap:12px;padding:16px 18px;display:grid}.book-editor-header>div:nth-child(2),.chapter-editor>header>div:nth-child(2){flex-direction:column;min-width:0;display:flex}.book-editor-header strong,.chapter-editor header strong{color:var(--text-heading);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.book-editor-header strong+span,.chapter-editor header strong+span{color:var(--text-subtle);font-size:var(--fs-small)}.expand-button{border:1px solid var(--border-default);width:32px;height:32px;color:var(--petroleo-700);background:var(--surface-muted);border-radius:7px;font-size:1.2rem}.publication-pill{color:var(--text-muted);background:var(--cinza-100);font-size:.72rem;font-weight:var(--fw-semibold);border-radius:999px;padding:5px 9px;display:inline-flex}.publication-pill.published{color:var(--success-500);background:var(--success-50)}.publication-pill.archived{color:var(--cinza-700);background:var(--cinza-100)}.order-buttons{gap:4px;display:flex}.order-buttons button{border:1px solid var(--border-default);width:30px;height:30px;color:var(--text-muted);background:var(--surface-card);border-radius:6px}.book-editor-body{border-top:1px solid var(--border-default);background:var(--surface-muted);padding:20px}.book-controls{grid-template-columns:minmax(280px,1fr) auto;align-items:end;gap:18px;display:grid}.publication-actions{flex-wrap:wrap;gap:8px;display:flex}.publication-actions button{border:1px solid var(--border-default);min-height:36px;color:var(--text-body);background:var(--surface-card);border-radius:6px;padding:7px 11px;font-size:.8rem}.publication-actions .danger-link{color:var(--danger-500)}.inline-create{max-width:650px;margin-top:18px}.chapter-list{flex-direction:column;gap:10px;margin-top:20px;display:flex}.empty-inline{color:var(--text-subtle);text-align:center;margin:0;padding:18px}.chapter-editor{border:1px solid var(--border-default);background:var(--surface-card);border-radius:9px;overflow:hidden}.chapter-editor-body{border-top:1px solid var(--border-default);padding:18px}.chapter-form{grid-template-columns:1fr 1fr;gap:15px;display:grid}.chapter-form .full{grid-column:1/-1}textarea{resize:vertical;border:1px solid var(--border-default);width:100%;color:var(--text-body);background:var(--surface-card);border-radius:8px;padding:12px 15px}textarea:focus{border-color:var(--ciano-600);box-shadow:0 0 0 3px var(--ciano-50);outline:0}.topic-selector{border:1px solid var(--border-default);border-radius:8px;flex-wrap:wrap;gap:8px 16px;padding:12px 14px;display:flex}.topic-selector legend{color:var(--text-heading);font-size:var(--fs-small);font-weight:var(--fw-semibold);padding:0 5px}.topic-selector label{font-weight:var(--fw-regular);align-items:center;gap:6px;margin:0;display:inline-flex}.topic-selector input{width:16px;min-height:16px;accent-color:var(--petroleo-700)}.chapter-editor-body>.publication-actions{margin-top:16px}.activity-create{border-top:1px solid var(--border-default);grid-template-columns:minmax(190px,1fr) 110px 110px auto;align-items:end;gap:12px;margin-top:20px;padding-top:18px;display:grid}.activity-create>button{border-radius:7px;min-height:52px}.activity-create>button:disabled{opacity:.5}.activity-list{flex-direction:column;gap:7px;margin-top:16px;display:flex}.activity-row{border:1px solid var(--cinza-100);border-radius:8px;grid-template-columns:minmax(220px,1fr) auto auto auto;align-items:center;gap:10px;padding:12px;display:grid}.activity-row>div:first-child{flex-direction:column;display:flex}.activity-row strong{color:var(--text-heading)}.activity-row strong+span{color:var(--text-subtle);font-size:.76rem}.admin-items{max-width:1280px;margin:0 auto}.item-type-switch{border:1px solid var(--border-default);background:var(--surface-card);border-radius:9px;padding:4px;display:flex}.item-type-switch button{min-height:38px;color:var(--text-muted);font-size:var(--fs-small);font-weight:var(--fw-semibold);background:0 0;border:0;border-radius:6px;padding:7px 13px}.item-type-switch button.active{color:var(--text-on-dark);background:var(--petroleo-700)}.item-create-panel{border-top:3px solid var(--ciano-500);background:var(--surface-card);box-shadow:var(--shadow-sm);border-radius:0 0 10px 10px;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;padding:22px;display:grid}.item-create-panel>.field-group:first-child,.item-create-panel .question-options{grid-column:1/-1}.question-options{flex-direction:column;gap:8px;display:flex}.question-options>label{margin-bottom:0}.question-options>div,.edit-option{grid-template-columns:22px 1fr auto;align-items:center;gap:8px;display:grid}.question-options input[type=radio],.edit-option input[type=radio]{width:18px;min-height:18px;accent-color:var(--laranja-500)}.question-options button,.item-actions button,.item-chapter-change button,.item-edit-form button{border:1px solid var(--border-default);min-height:38px;color:var(--text-body);background:var(--surface-card);border-radius:7px;padding:7px 11px;font-size:.78rem}.question-options>button{color:var(--text-link);align-self:flex-start}.items-toolbar{grid-template-columns:minmax(220px,1fr) 150px 150px minmax(220px,1fr) auto;align-items:end;gap:12px;margin-top:30px;display:grid}.items-toolbar>button{min-height:52px;color:var(--text-on-dark);background:var(--petroleo-700);font-weight:var(--fw-semibold);border:0;border-radius:8px;padding:0 18px}.field-group>span{color:var(--text-heading);font-size:var(--fs-small);font-weight:var(--fw-semibold);margin-bottom:8px}.item-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px;display:grid}.item-card{border:1px solid var(--border-default);background:var(--surface-card);min-width:0;box-shadow:var(--shadow-sm);border-radius:10px;flex-direction:column;padding:18px;display:flex}.item-card.archived{opacity:.7}.item-card>header{justify-content:space-between;align-items:center;gap:10px;display:flex}.item-kind{color:var(--petroleo-700);font-size:var(--fs-label);font-weight:var(--fw-bold);letter-spacing:var(--tracking-label);text-transform:uppercase}.item-card>p{color:var(--text-heading);font-weight:var(--fw-medium);-webkit-line-clamp:3;-webkit-box-orient:vertical;margin:18px 0 10px;display:-webkit-box;overflow:hidden}.item-card>small{color:var(--text-subtle)}.item-chapter-change{grid-template-columns:1fr auto;gap:8px;margin-top:18px;display:grid}.item-chapter-change button{white-space:nowrap}.item-actions{flex-wrap:wrap;gap:7px;margin-top:10px;display:flex}.item-actions .danger-link{color:var(--danger-500)}.item-edit-form{border-top:1px solid var(--border-default);gap:8px;margin-top:16px;padding-top:16px}.item-edit-form>div:last-child{gap:7px;display:flex}.student-materials,.chapter-reader{max-width:1180px;margin:0 auto}.student-book-list{flex-direction:column;gap:20px;margin-top:32px;display:flex}.student-book{border:1px solid var(--border-default);background:var(--surface-card);box-shadow:var(--shadow-sm);border-radius:11px;overflow:hidden}.student-book>header{border-bottom:1px solid var(--border-default);justify-content:space-between;align-items:center;gap:30px;padding:24px;display:flex}.student-book>header span:first-child{color:var(--laranja-600);font-size:var(--fs-label);font-weight:var(--fw-bold);letter-spacing:var(--tracking-label);text-transform:uppercase}.student-book h2{color:var(--text-heading);margin:5px 0 0;font-size:1.45rem}.progress-summary{width:min(250px,35%);color:var(--petroleo-700);font-size:var(--fs-small);font-weight:var(--fw-bold);align-items:center;gap:12px;display:flex}.progress-summary>div{background:var(--cinza-100);border-radius:999px;flex:1;height:7px;overflow:hidden}.progress-summary i{border-radius:inherit;background:var(--ciano-500);height:100%;transition:width var(--dur-normal) var(--ease-standard);display:block}.student-book ol{margin:0;padding:0;list-style:none}.student-book li+li{border-top:1px solid var(--cinza-100)}.student-book li>button{width:100%;color:var(--text-body);text-align:left;background:0 0;border:0;grid-template-columns:42px minmax(0,1fr) auto;align-items:center;gap:14px;padding:17px 24px;display:grid}.student-book li>button:hover{background:var(--petroleo-50)}.student-book li>button>span:nth-child(2){flex-direction:column;min-width:0;display:flex}.student-book li strong{color:var(--text-heading)}.student-book li small{color:var(--text-subtle);text-overflow:ellipsis;white-space:nowrap;margin-top:3px;overflow:hidden}.chapter-check,.activity-state{border:1px solid var(--border-default);width:34px;height:34px;color:var(--text-muted);font-size:var(--fs-small);font-weight:var(--fw-bold);border-radius:50%;place-items:center;display:grid}.chapter-check.complete,.activity-state.complete{border-color:var(--success-500);color:var(--success-500);background:var(--success-50)}.chapter-percent{color:var(--petroleo-700);font-size:var(--fs-small);font-weight:var(--fw-semibold)}.material-skeleton{gap:18px;margin-top:32px;display:grid}.material-skeleton span{background:linear-gradient(90deg, var(--cinza-100), var(--surface-card), var(--cinza-100));background-size:200% 100%;border-radius:10px;height:170px;animation:1.4s infinite skeleton}@keyframes skeleton{to{background-position:-200% 0}}.reader-back{color:var(--text-link);font-size:var(--fs-small);background:0 0;border:0;padding:0}.chapter-reader>header{justify-content:space-between;align-items:flex-end;gap:32px;margin:28px 0;display:flex}.chapter-reader>header h1{font-size:var(--app-page-title-size);letter-spacing:var(--tracking-heading);line-height:var(--lh-heading);margin:5px 0 8px}.chapter-reader>header p:last-child{max-width:720px;color:var(--text-muted);margin:0}.gamma-frame{border:1px solid var(--border-default);background:var(--surface-card);width:100%;min-height:540px;box-shadow:var(--shadow-sm);border-radius:10px;position:relative;overflow:hidden}.gamma-frame iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.reading-confirmation{border-left:4px solid var(--laranja-500);background:var(--surface-card);border-radius:0 8px 8px 0;justify-content:space-between;align-items:center;gap:24px;margin-top:18px;padding:20px;display:flex}.reading-confirmation p{color:var(--text-muted);font-size:var(--fs-small);margin:4px 0 0}.reading-confirmation button{min-height:44px;color:var(--text-on-dark);background:var(--laranja-500);font-weight:var(--fw-semibold);white-space:nowrap;border:0;border-radius:8px;padding:9px 16px}.reading-confirmation button.completed{color:var(--success-500);background:var(--success-50);box-shadow:inset 0 0 0 1px var(--success-500)}.chapter-activities{margin-top:34px}.chapter-activities h2{font-size:1.45rem}.chapter-activities>div{gap:10px;display:grid}.chapter-activities article{border:1px solid var(--border-default);background:var(--surface-card);border-radius:9px;grid-template-columns:40px minmax(0,1fr) auto;align-items:center;gap:12px;padding:16px;display:grid}.chapter-activities article>div{flex-direction:column;display:flex}.chapter-activities small{color:var(--text-subtle)}.chapter-activities button{border:1px solid var(--border-default);min-height:38px;color:var(--text-subtle);background:var(--surface-muted);border-radius:7px;padding:7px 12px}.runner-overlay{z-index:20;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);background:#051c23e0;padding:clamp(14px,4vw,48px);position:fixed;inset:0;overflow-y:auto}.activity-runner,.runner-summary{border-top:4px solid var(--ciano-500);background:var(--surface-card);width:min(100%,880px);min-height:min(720px,100vh - 96px);box-shadow:var(--shadow-xl);border-radius:0 0 12px 12px;margin:0 auto;padding:clamp(22px,5vw,48px)}.activity-runner>header{grid-template-columns:1fr auto 36px;align-items:start;gap:18px;display:grid}.activity-runner>header h1{margin:5px 0 0;font-size:1.55rem}.activity-runner>header>span{color:var(--text-muted);font-size:var(--fs-small)}.activity-runner>header>button{width:34px;height:34px;color:var(--text-muted);background:var(--surface-muted);border:0;border-radius:50%;font-size:1.4rem}.runner-progress{background:var(--cinza-100);border-radius:99px;height:6px;margin:22px 0 40px;overflow:hidden}.runner-progress i{background:var(--laranja-500);height:100%;display:block}.question-stage h2{font-size:clamp(1.35rem,3vw,1.9rem);line-height:var(--lh-snug)}.question-stage>div:first-of-type{gap:10px;margin-top:26px;display:grid}.question-stage label{border:1px solid var(--border-default);font-weight:var(--fw-regular);border-radius:8px;grid-template-columns:22px 1fr;align-items:center;gap:12px;margin:0;padding:15px;display:grid}.question-stage label.selected{border-color:var(--ciano-600);background:var(--ciano-50)}.question-stage label.correct{border-color:var(--success-500);background:var(--success-50)}.question-stage label.incorrect{border-color:var(--danger-500);background:var(--danger-50)}.question-stage input{width:18px;min-height:18px;accent-color:var(--petroleo-700)}.answer-feedback{border-left:4px solid;margin-top:20px;padding:16px}.answer-feedback.correct{border-color:var(--success-500);background:var(--success-50)}.answer-feedback.incorrect{border-color:var(--danger-500);background:var(--danger-50)}.answer-feedback p{margin:7px 0 0}.question-stage footer{justify-content:flex-end;margin-top:22px;display:flex}.study-card{border:1px solid var(--border-default);width:100%;min-height:350px;color:var(--text-heading);background:var(--petroleo-50);box-shadow:var(--shadow-md);text-align:center;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:20px;padding:40px;display:flex}.study-card.revealed{border-top:4px solid var(--laranja-500);background:var(--surface-card)}.study-card>span{color:var(--text-subtle);font-size:var(--fs-label);letter-spacing:var(--tracking-label);text-transform:uppercase}.study-card>strong{max-width:650px;font-size:clamp(1.4rem,4vw,2.2rem)}.flashcard-flip{perspective:1200px;text-align:left;background:0 0;border:0;width:100%;min-height:350px;padding:0;display:block}.flashcard-flip-inner{width:100%;min-height:350px;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.22,.8,.26,1);display:grid;position:relative}.flashcard-flip.is-flipped .flashcard-flip-inner{transform:rotateY(180deg)}.flashcard-face{border:1px solid var(--border-default);min-height:350px;color:var(--text-heading);background:var(--petroleo-50);backface-visibility:hidden;box-shadow:var(--shadow-md);text-align:center;border-radius:12px;flex-direction:column;grid-area:1/1;justify-content:center;align-items:center;gap:20px;padding:40px;display:flex}.flashcard-face>span{color:var(--text-subtle);font-size:var(--fs-label);letter-spacing:var(--tracking-label);text-transform:uppercase}.flashcard-face>strong{max-width:650px;font-size:clamp(1.4rem,4vw,2.2rem)}.flashcard-face>small{color:var(--text-muted);font-size:var(--fs-small)}.flashcard-back{border-top:4px solid var(--laranja-500);background:var(--surface-card);transform:rotateY(180deg)}.flashcard-flip:focus-visible{outline:3px solid var(--ciano-500);outline-offset:4px;border-radius:12px}.rating-buttons{flex-wrap:wrap;justify-content:center;gap:9px;margin-top:22px;display:flex}.rating-buttons p{text-align:center;width:100%}.rating-buttons button{border:1px solid var(--border-default);min-height:42px;color:var(--text-body);background:var(--surface-card);border-radius:8px;padding:8px 14px}.abandon-button{color:var(--text-subtle);font-size:var(--fs-small);background:0 0;border:0;margin:32px auto 0;padding:6px;text-decoration:underline;display:block}.runner-summary{text-align:center;min-height:0;margin-top:8vh}.runner-summary h1{margin:8px 0 18px;font-size:clamp(2rem,5vw,3rem)}.runner-summary>div{color:var(--text-muted);justify-content:center;gap:16px;margin-top:20px;display:flex}.admin-simulations,.student-simulations{max-width:1280px;margin:0 auto}.simulations-heading{justify-content:space-between;align-items:end;gap:18px;display:flex}.simulation-management-list{gap:10px;margin-top:20px;display:grid}.simulation-management-card{border:1px solid var(--border-default);background:var(--surface-card);box-shadow:var(--shadow-sm);border-radius:10px;justify-content:space-between;align-items:center;gap:22px;padding:18px 20px;display:flex}.simulation-card-main{min-width:0}.simulation-type-label{color:var(--laranja-600);font-size:var(--fs-label);font-weight:var(--fw-bold);letter-spacing:.07em;text-transform:uppercase}.simulation-card-main h2{margin:4px 0;font-size:1.1rem}.simulation-card-main>p{color:var(--text-muted);margin:0}.simulation-config{color:var(--text-muted);font-size:var(--fs-small);flex-wrap:wrap;gap:6px 16px;margin-top:12px;display:flex}.simulation-config strong{color:var(--text-body)}.simulation-card-actions{flex-wrap:wrap;justify-content:end;align-items:center;gap:8px;display:flex}.simulation-card-actions .icon-button{width:34px;height:34px}.simulation-card-actions .icon-button svg{width:17px;height:17px}.danger-icon{color:var(--error-600,#c53b28)!important}.simulation-panel-backdrop{z-index:40;background:#02232e6b;justify-content:end;display:flex;position:fixed;inset:0}.simulation-panel{background:var(--surface-card);flex-direction:column;width:min(560px,100vw);min-height:100%;display:flex;box-shadow:-12px 0 30px #00000029}.simulation-panel>header{border-bottom:1px solid var(--border-default);justify-content:space-between;align-items:start;padding:22px 24px 18px;display:flex}.simulation-panel>header h2{margin:3px 0 0}.simulation-panel form{gap:16px;padding:22px 24px;display:grid;overflow-y:auto}.simulation-panel-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.simulation-panel footer{justify-content:end;gap:10px;margin-top:4px;display:flex}.certification-create{border:1px solid var(--border-default);background:var(--surface-card);border-radius:10px;grid-template-columns:1fr 1.4fr auto;align-items:end;gap:14px;margin-top:28px;padding:20px;display:grid}.certification-create>button,.simulation-create>button{min-height:52px;color:var(--text-on-dark);background:var(--petroleo-700);font-weight:var(--fw-semibold);border:0;border-radius:8px;padding:0 16px}.certification-list{gap:16px;margin-top:24px;display:grid}.certification-editor{border:1px solid var(--border-default);background:var(--surface-card);box-shadow:var(--shadow-sm);border-radius:11px;overflow:hidden}.certification-editor>header{grid-template-columns:36px 1fr auto auto;align-items:center;gap:12px;padding:18px;display:grid}.certification-editor>header>div:nth-child(2){flex-direction:column;display:flex}.certification-editor small{color:var(--text-subtle)}.certification-body{border-top:1px solid var(--border-default);background:var(--surface-muted);padding:20px}.certification-body>p{color:var(--text-muted)}.simulation-create{border:1px solid var(--border-default);background:var(--surface-card);border-radius:9px;grid-template-columns:minmax(200px,1.5fr) repeat(4,minmax(110px,.7fr)) auto;align-items:end;gap:10px;margin-top:14px;padding:16px;display:grid}.simulation-admin-list{gap:10px;margin-top:18px;display:grid}.simulation-editor{border:1px solid var(--border-default);background:var(--surface-card);border-radius:9px;padding:16px}.simulation-editor>header{justify-content:space-between;align-items:center;gap:12px;display:flex}.simulation-editor>header>div{flex-direction:column;display:flex}.simulation-editor>header>div>span{color:var(--laranja-600);font-size:var(--fs-label);font-weight:var(--fw-bold);text-transform:uppercase}.simulation-actions{align-items:center;gap:8px;margin-top:12px;display:flex}.simulation-actions>button,.simulation-item-picker>button{border:1px solid var(--border-default);background:var(--surface-card);border-radius:7px;min-height:36px;padding:7px 11px}.simulation-item-picker{border:1px solid var(--border-default);background:var(--surface-muted);border-radius:8px;gap:7px;max-height:420px;margin-top:14px;padding:14px;display:grid;overflow-y:auto}.simulation-item-picker label{background:var(--surface-card);font-weight:var(--fw-regular);grid-template-columns:20px 1fr;align-items:center;gap:8px;margin:0;padding:8px;display:grid}.simulation-item-picker input{width:17px;min-height:17px}.student-certifications{gap:28px;margin-top:30px;display:grid}.student-certifications>section>header span{color:var(--laranja-600);font-size:var(--fs-label);font-weight:var(--fw-bold);text-transform:uppercase}.student-certifications h2{margin:5px 0;font-size:1.7rem}.student-certifications>section>header p{color:var(--text-muted)}.student-certifications>section>div{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;display:grid}.student-certifications article{border:1px solid var(--border-default);background:var(--surface-card);box-shadow:var(--shadow-sm);border-radius:10px;grid-template-columns:48px minmax(0,1fr) auto;gap:14px;padding:20px;display:grid}.simulation-kind{width:44px;height:44px;color:var(--text-on-dark);background:var(--petroleo-700);font-weight:var(--fw-bold);border-radius:9px;place-items:center;display:grid}.simulation-kind.flashcard{background:var(--laranja-500)}.student-certifications article h3{margin:4px 0 8px}.student-certifications article p,.student-certifications article small{color:var(--text-muted)}.simulation-stats{font-size:var(--fs-small);flex-direction:column;align-items:flex-end;gap:7px;display:flex}.simulation-stats button{color:var(--text-on-dark);background:var(--petroleo-700);white-space:nowrap;border:0;border-radius:7px;margin-top:auto;padding:9px 12px}.simulation-runner,.simulation-result{background:var(--surface-card);border-radius:11px;width:min(100%,1080px);min-height:calc(100vh - 96px);margin:0 auto;padding:clamp(20px,4vw,42px)}.simulation-runner>header{justify-content:space-between;gap:24px;display:flex}.simulation-runner h1{margin:5px 0}.simulation-clocks{gap:12px;display:flex}.simulation-clocks span{min-width:125px;color:var(--text-muted);background:var(--surface-muted);border-radius:8px;flex-direction:column;padding:10px;font-size:.72rem;display:flex}.simulation-clocks strong{color:var(--text-heading);font-size:1.2rem}.simulation-nav{flex-wrap:wrap;gap:6px;margin:24px 0;display:flex}.simulation-nav button{border:1px solid var(--border-default);background:var(--surface-card);border-radius:6px;width:34px;height:34px}.simulation-nav button.answered{border-color:var(--ciano-600);background:var(--ciano-50)}.simulation-nav button.review{box-shadow:inset 0 -4px var(--laranja-500)}.simulation-nav button.active{color:var(--text-on-dark);background:var(--petroleo-700)}.question-meta{justify-content:space-between;display:flex}.question-meta label{font-weight:var(--fw-regular);align-items:center;gap:7px;display:flex}.question-meta input{width:17px;min-height:17px}.simulation-question h2{margin:24px 0;font-size:1.5rem}.simulation-question>div:last-child{gap:9px;display:grid}.simulation-question>div:last-child label{border:1px solid var(--border-default);font-weight:var(--fw-regular);border-radius:8px;grid-template-columns:20px 1fr;align-items:center;gap:10px;margin:0;padding:14px;display:grid}.simulation-question label.selected{border-color:var(--ciano-600);background:var(--ciano-50)}.simulation-question input{width:18px;min-height:18px}.simulation-runner>footer{justify-content:space-between;align-items:center;gap:12px;margin-top:26px;display:flex}.simulation-runner>footer button{border:1px solid var(--border-default);background:var(--surface-card);border-radius:7px;min-height:42px;padding:8px 14px}.simulation-runner>footer .submit-simulation{color:var(--text-on-dark);background:var(--laranja-500)}.rating-buttons button.active{color:var(--text-on-dark);background:var(--petroleo-700)}.simulation-result{text-align:center}.simulation-result h1{margin:10px 0;font-size:3rem}.simulation-result .passed{color:var(--success-500)}.simulation-result .failed{color:var(--danger-500)}.result-stats{flex-wrap:wrap;justify-content:center;gap:10px;margin:24px 0;display:flex}.result-stats span{background:var(--surface-muted);border-radius:8px;flex-direction:column;min-width:130px;padding:14px;display:flex}.result-review{text-align:left;gap:8px;max-height:380px;display:grid;overflow-y:auto}.result-review article{background:var(--surface-muted);border-left:4px solid;padding:12px}.result-review article.correct{border-color:var(--success-500)}.result-review article.incorrect{border-color:var(--danger-500)}.materials-workspace{width:100%;max-width:1600px;margin:0 auto}.materials-toolbar{justify-content:space-between;align-items:end;gap:var(--app-page-section-gap);padding-bottom:var(--app-page-section-gap);display:flex}.materials-toolbar h1{font-size:var(--app-page-title-size);letter-spacing:var(--tracking-heading);line-height:var(--lh-heading);margin:5px 0 0}.materials-toolbar-actions{align-items:center;gap:8px;display:flex}.materials-search{border:1px solid var(--border-default);width:min(360px,30vw);min-height:40px;color:var(--text-subtle);background:var(--surface-card);border-radius:8px;align-items:center;gap:8px;padding:0 12px;display:flex}.materials-search:focus-within{border-color:var(--petroleo-700);box-shadow:0 0 0 3px color-mix(in srgb, var(--ciano-500) 35%, transparent)}.materials-search 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strong{font-size:.83rem;line-height:1.25}.tree-book-title small{color:var(--text-subtle);font-size:.67rem}.tree-status-dot{background:var(--cinza-400);border-radius:50%;width:7px;height:7px}.tree-status-dot.published{background:var(--success-500)}.tree-status-dot.archived{background:var(--cinza-400)}.tree-chapters{border-left:1px solid var(--border-default);gap:2px;margin:1px 0 4px 29px;padding:1px 0 5px 13px;display:grid}.tree-chapter{width:100%;color:var(--text-body);text-align:left;background:0 0;border:0;border-radius:7px;grid-template-columns:31px minmax(0,1fr) 24px;align-items:center;gap:5px;padding:8px 7px;display:grid}.tree-chapter:hover{background:var(--surface-muted)}.tree-chapter.selected{color:var(--petroleo-700);background:var(--petroleo-100)}.tree-chapter.archived{opacity:.6}.tree-chapter>span{color:var(--text-subtle);font-size:.67rem}.tree-chapter strong{font-size:.76rem;font-weight:var(--fw-medium);line-height:1.3}.tree-chapter 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small{color:var(--text-subtle);font-size:.72rem}.activity-type-icon{width:42px;height:42px;color:var(--petroleo-700);background:var(--petroleo-100);border-radius:9px;place-items:center;display:grid}.activity-type-icon.questions{color:var(--petroleo-700);background:var(--petroleo-100)}.activity-type-icon.flashcards{color:var(--laranja-600);background:var(--laranja-50)}.activity-type-icon.mixed{color:var(--ciano-600);background:var(--ciano-50)}.activity-order-actions{align-items:center;gap:2px;padding:0 13px;display:flex}.activity-order-actions button{width:32px;height:32px;color:var(--text-subtle);background:0 0;border:1px solid #0000;border-radius:6px;place-items:center;padding:0;display:grid}.activity-order-actions button:hover:not(:disabled){border-color:var(--border-default);color:var(--petroleo-700);background:var(--surface-muted)}.activity-order-actions button:disabled{opacity:.3;cursor:not-allowed}.workspace-empty-card{border:1px dashed 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i{color:var(--petroleo-700);background:var(--ciano-50);font-size:var(--fs-small);white-space:nowrap;border-radius:999px;padding:4px 8px;font-style:normal}.study-search-empty{margin:14px 0 0}.import-panels{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:28px;display:grid}.import-panels>article,.import-history{border:1px solid var(--border-default);background:var(--surface-card);border-radius:10px;padding:22px}.import-panels article>header{justify-content:space-between;align-items:center;gap:12px;display:flex}.import-panels h2,.import-history h2{margin:0}.import-panels article>header a,.import-panels article>header button,.product-create button,.import-preview button{min-height:38px;color:var(--text-on-dark);background:var(--petroleo-700);font:inherit;border:0;border-radius:7px;padding:8px 12px;text-decoration:none}.product-create{grid-template-columns:1fr 1fr auto;gap:8px;margin-top:14px;display:grid}.product-list{gap:8px;margin-top:18px;display:grid}.product-list 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var(--border-default);background:var(--surface-card);border-radius:10px;margin-top:22px}.item-filter-tabs{border-bottom:1px solid var(--border-default);gap:4px;padding:11px 14px 0;display:flex}.item-filter-tabs button{min-height:40px;color:var(--text-muted);font-size:var(--fs-small);font-weight:var(--fw-semibold);background:0 0;border:0;padding:8px 12px;position:relative}.item-filter-tabs button:after{content:"";background:0 0;border-radius:2px 2px 0 0;height:2px;position:absolute;bottom:0;left:10px;right:10px}.item-filter-tabs button.active{color:var(--petroleo-700)}.item-filter-tabs button.active:after{background:var(--laranja-500)}.item-filter-tabs span{min-width:19px;height:19px;color:var(--text-muted);background:var(--surface-muted);border-radius:999px;place-items:center;margin-left:4px;font-size:.68rem;display:inline-grid}.item-filter-tabs button.active span{color:var(--petroleo-700);background:var(--ciano-50)}.items-filter-row{border-bottom:1px solid var(--border-default);background:var(--surface-muted);grid-template-columns:minmax(220px,1.35fr) minmax(140px,.55fr) minmax(210px,.9fr) auto;align-items:end;gap:10px;padding:15px;display:grid}.items-search{flex-direction:column;margin:0;display:flex}.items-search>span{color:var(--text-heading);font-size:var(--fs-small);font-weight:var(--fw-semibold);margin-bottom:8px}.items-search input,.items-filter-row select{min-height:44px}.clear-filters{min-height:38px;color:var(--text-link);font-size:var(--fs-small);font-weight:var(--fw-semibold);text-underline-offset:3px;white-space:nowrap;background:0 0;border:0;padding:7px 3px;text-decoration:underline}.clear-filters:disabled{cursor:default;opacity:.45;text-decoration:none}.items-bank>.feedback{margin:12px 15px 0}.item-bulk-bar{min-height:58px;color:var(--text-on-dark);background:var(--petroleo-700);align-items:center;gap:8px;padding:9px 14px;display:flex}.item-bulk-bar 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var(--border-default);background:var(--surface-muted);min-height:500px;box-shadow:var(--shadow-sm);border-radius:10px;flex:1;grid-template-columns:minmax(0,.7fr) minmax(0,1fr) minmax(0,1fr);display:grid;overflow:hidden}.library-column{border-left:1px solid var(--border-default);background:var(--surface-card);flex-direction:column;min-width:0;display:flex}.library-column:first-child{border-left:0}.library-column>header{border-bottom:1px solid var(--border-default);justify-content:space-between;align-items:center;gap:10px;min-height:70px;padding:14px 15px;display:flex}.library-column>header p{color:var(--laranja-600);font-size:var(--fs-label);font-weight:var(--fw-bold);letter-spacing:var(--tracking-label);text-transform:uppercase;margin:0 0 3px}.library-column>header h2{max-width:260px;color:var(--text-heading);text-overflow:ellipsis;white-space:nowrap;margin:0;font-size:1rem;line-height:1.25;overflow:hidden}.student-materials 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