:root{--tp-bg: var(--brand-bg);--tp-surface: var(--brand-surface);--tp-surface-2: var(--brand-surface-2);--tp-text: var(--brand-text);--tp-muted: var(--brand-muted);--tp-border: var(--brand-border);--tp-primary: var(--brand-primary);--tp-focus: var(--brand-focus);--tp-faint: var(--brand-faint);--tp-border-control: var(--brand-border-control);--tp-raised: var(--bg-raised);--tp-inset: var(--surface-inset);--tp-accent-cyan: var(--accent-cyan);--tp-accent-violet: var(--accent-violet);--tp-accent-coral: var(--accent-coral);--tp-chevron: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='none'%3E%3Cpath d='M3.5 6l4.5 4.5L12.5 6' stroke='black' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E")}html,body{background:var(--tp-bg);color:var(--tp-text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Noto Sans,Ubuntu,Cantarell,Helvetica Neue,Arial,"Apple Color Emoji","Segoe UI 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.tp-caret{transform:none}}@media(forced-colors:active){.tp-guide{border-color:CanvasText;background:Canvas;border-left-color:CanvasText!important}.tp-guide>summary{color:ButtonText}.tp-guide>summary>.material-symbols-outlined:first-child{color:CanvasText!important}}.btn-elemento{border-radius:0;margin:.5rem;padding:1rem;min-height:180px;background:linear-gradient(145deg,var(--tp-surface-2),var(--tp-bg));border:1px solid var(--tp-border);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.btn-elemento:hover{transform:translateY(-4px);border-color:var(--tp-focus);box-shadow:0 10px 24px var(--shadow-color)}.btn-elemento:focus-visible{outline:3px solid var(--tp-focus);outline-offset:4px;box-shadow:0 0 0 2px #000,0 0 0 7px var(--tp-focus)}html[data-theme=light] .btn-elemento.text-white,html[data-theme=light] #secao-periodos.text-white{color:var(--tp-text)!important}html[data-theme=light] .tp-guide-body .table-dark{--bs-table-bg: var(--tp-surface-2);--bs-table-color: 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rgba(255,255,255,.5)}.color-mode-active .elemento-lantanideo{background:coral;color:#000;text-shadow:0px 1px 1px rgba(255,255,255,.5)}.color-mode-active .elemento-actinideo{background:#ffa07a;color:#000;text-shadow:0px 1px 1px rgba(255,255,255,.5)}.color-mode-active .elemento-nao-metal{background:#4e6f39;color:#fff;text-shadow:0px 1px 2px rgba(0,0,0,.5)}.color-mode-active .elemento-semimetal{background:#d81b2a;color:#fff;text-shadow:0px 1px 2px rgba(0,0,0,.5)}.color-mode-active .elemento-metal-representativo{background:#ffe066;color:#000;text-shadow:0px 1px 1px rgba(255,255,255,.5)}.color-mode-active .elemento-gas-nobre{background:#00b4d8;color:#000;text-shadow:0px 1px 1px rgba(255,255,255,.5)}html[data-theme=light] .color-mode-active [class*=elemento-]{border:1px solid rgba(26,23,20,.45)}.color-mode-active .modal-hidrogenio .modal-content{background:linear-gradient(145deg,#fff,#f0f0f0);color:#000;border-color:#555}.color-mode-active .modal-alcalino 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#fff6!important;filter:brightness(1.1)}.modal-content{background:var(--tp-surface);color:var(--tp-text);border:1px solid var(--tp-border);border-radius:0}.modal-header,.modal-footer{border-color:var(--tp-border)}.tp-elem-modal{--tp-elem-accent: rgba(255,255,255,.35);--tp-elem-accent-text: #1a1a24}.tp-elem-modal--hidrogenio{--tp-elem-accent: #e8e8e8}.tp-elem-modal--metais-alcalinos{--tp-elem-accent: #ff8a5b}.tp-elem-modal--metais-alcalinoterrosos{--tp-elem-accent: #ffbe5b}.tp-elem-modal--metais-transicao{--tp-elem-accent: #8fb9e6}.tp-elem-modal--lantanideos{--tp-elem-accent: #d4a8ff}.tp-elem-modal--actinideos{--tp-elem-accent: #ff9fbf}.tp-elem-modal--outros-metais{--tp-elem-accent: #b3c3d4}.tp-elem-modal--semimetais{--tp-elem-accent: #7fd9a3}.tp-elem-modal--nao-metais{--tp-elem-accent: #8be3d5}.tp-elem-modal--halogenios{--tp-elem-accent: #ffe08a}.tp-elem-modal--gases-nobres{--tp-elem-accent: #a5d5f7}.tp-elem-modal .modal-content{border-top:4px solid var(--tp-elem-accent);border-radius:0}.tp-elem-header{display:flex;align-items:flex-start;gap:1rem;padding:1.25rem 1.5rem;border-bottom:1px solid var(--tp-border)}.tp-elem-heading{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:.55rem;padding-top:.15rem}.tp-elem-name{font-size:1.6rem;font-weight:800;margin:0;line-height:1.2;color:var(--tp-text);word-break:break-word}.tp-elem-close{margin-left:auto;flex-shrink:0;min-width:44px;min-height:44px;filter:invert(1) grayscale(100%) brightness(200%);opacity:.75}html[data-theme=light] body:not(.color-mode-active) .tp-elem-close{filter:none}.tp-elem-close:hover,.tp-elem-close:focus-visible{opacity:1}.tp-elem-card{flex-shrink:0;width:88px;height:88px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:auto 1fr auto;padding:.4rem .55rem;border-radius:.75rem;background:var(--tp-inset);border:1px solid var(--tp-elem-accent);user-select:none}.tp-elem-card-num{grid-column:1;grid-row:1;font-size:.75rem;font-weight:600;color:var(--tp-muted);line-height:1}.tp-elem-card-mass{grid-column:2;grid-row:3;font-size:.65rem;color:var(--tp-faint);text-align:right;line-height:1}.tp-elem-card-symbol{grid-column:1 / 3;grid-row:2;font-size:2.1rem;font-weight:800;text-align:center;line-height:1;color:var(--tp-elem-accent);align-self:center}.tp-elem-badge{display:inline-flex;align-items:center;align-self:flex-start;padding:.3rem .75rem;border-radius:0;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;background:var(--tp-elem-accent);color:var(--tp-elem-accent-text);white-space:nowrap;max-width:100%;overflow:hidden;text-overflow:ellipsis}.tp-elem-body{padding:1.25rem 1.5rem}.tp-elem-image{margin:0 auto 1.25rem;max-width:280px;text-align:center}.tp-elem-image img{max-width:100%;max-height:220px;width:auto;height:auto;border-radius:0;box-shadow:0 6px 20px var(--shadow-color)}.tp-elem-section-title{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--tp-muted);margin:0 0 .75rem}.tp-elem-props{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem;margin-bottom:1.5rem}.tp-elem-prop{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:.75rem;padding:.75rem .9rem;background:var(--tp-inset);border:1px solid var(--tp-border);border-radius:0;min-height:72px}.tp-elem-prop-icon{grid-column:1;grid-row:1 / 3;font-size:1.5rem!important;line-height:1;color:var(--tp-elem-accent);align-self:center}.tp-elem-prop-label{grid-column:2;grid-row:1;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--tp-faint);line-height:1.1}.tp-elem-prop-value{grid-column:2;grid-row:2;font-size:1.05rem;font-weight:600;color:var(--tp-text);line-height:1.3;margin-top:.3rem;word-break:break-word}.tp-elem-distribution{background:var(--tp-inset);border:1px solid var(--tp-border);border-radius:0;padding:1rem 1.1rem}.tp-elem-dist-image{margin:0 auto 1rem;max-width:240px;text-align:center}.tp-elem-dist-image img{max-width:100%;height:auto;border-radius:0;box-shadow:0 4px 14px var(--shadow-color)}.tp-elem-dist-list>div{padding:.4rem 0;border-bottom:1px solid var(--tp-border)}.tp-elem-dist-list>div:last-child{border-bottom:none}.tp-elem-footer{padding:.85rem 1.5rem;border-top:1px solid var(--tp-border);display:flex;justify-content:flex-end;gap:.5rem}.tp-elem-btn-back{display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1.1rem;background:transparent;border:1px solid var(--tp-border-control);color:var(--tp-text);font-weight:500;border-radius:0;transition:background .2s ease,border-color .2s ease}.tp-elem-btn-back:hover,.tp-elem-btn-back:focus-visible{background:var(--tp-raised);border-color:var(--tp-border-control);color:var(--tp-text)}.tp-elem-btn-back 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.tp-elem-btn-back{color:inherit;border-color:#0006;background:#00000026}.color-mode-active .tp-elem-modal .tp-elem-btn-back:hover,.color-mode-active .tp-elem-modal .tp-elem-btn-back:focus-visible{background:#0000004d;border-color:#0009;color:inherit}.color-mode-active .modal-hidrogenio .tp-elem-close,.color-mode-active .modal-transicao .tp-elem-close,.color-mode-active .modal-lantanideo .tp-elem-close,.color-mode-active .modal-actinideo .tp-elem-close,.color-mode-active .modal-metal-representativo .tp-elem-close,.color-mode-active .modal-gas-nobre .tp-elem-close{filter:none}.color-mode-active .tp-elem-modal .tp-elem-dist-list>div{border-bottom-color:#0000002e}section#secao-periodos{padding:2rem 0;position:relative}#tabela-container{position:relative;border:1px solid var(--tp-border);border-radius:0;padding:1.5rem;min-height:280px}#tabela-status{position:absolute;clip:rect(0 0 0 0);clip-path:inset(50%);height:1px;width:1px;overflow:hidden;white-space:nowrap}.icon-decorative-lg{font-size:15rem;color:var(--tp-faint)}.icon-decorative-lg-ml{font-size:15rem;color:var(--tp-faint);margin-left:1rem}.tp-authors{display:flex;flex-direction:column;gap:1rem}.author-card{border:1px solid var(--tp-border);border-radius:.75rem;background:var(--tp-inset);box-shadow:0 4px 14px var(--shadow-color);overflow:hidden}.author-card-header{display:flex;align-items:center;gap:1rem;padding:1rem 1.25rem;background:var(--tp-inset);border-bottom:1px solid var(--tp-border)}.author-photo{flex:0 0 auto;width:72px;height:72px;border-radius:50%;object-fit:cover;border:3px solid var(--tp-primary)}.author-name{margin:0;font-size:1.05rem;font-weight:600;line-height:1.3;color:var(--tp-text)}.author-card-body{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem;padding:1rem 1.25rem}.author-section-title{display:flex;align-items:center;gap:.4rem;font-size:.95rem;font-weight:600;margin:0 0 .5rem;padding-bottom:.35rem;border-bottom:1px solid var(--tp-border);color:var(--tp-text)}.author-section-title .material-symbols-outlined{font-size:1.1rem;color:var(--tp-primary)}.author-list{margin:0;padding-left:1.2rem;font-size:.9rem;line-height:1.45;color:var(--tp-muted)}.author-list li{margin-bottom:.3rem}.author-list li:last-child{margin-bottom:0}@media(max-width:576px){.author-card-header{flex-direction:column;text-align:center;gap:.65rem}.author-card-body{grid-template-columns:1fr;gap:.75rem}.author-name{font-size:1rem}}@media(forced-colors:active){.author-card{border-color:CanvasText;background:Canvas}.author-card-header{background:ButtonFace;color:ButtonText;border-bottom-color:CanvasText}.author-photo{border-color:CanvasText}.author-section-title{border-bottom-color:CanvasText}.author-section-title .material-symbols-outlined{color:CanvasText}}.tp-btn-fit{min-width:fit-content}.tp-img-responsive{max-width:100%;height:auto}.tp-img-80{max-width:80%}.tp-electron-label{position:relative;top:-.5em}.tp-nav{border-left:4px solid transparent;transition:border-color .2s ease,background-color .2s ease}.tp-nav-icon{font-size:1.5rem!important;line-height:1}.tp-nav--periodos{border-left-color:var(--tp-accent-cyan)}.tp-nav--periodos .tp-nav-icon{color:var(--tp-accent-cyan)}.tp-nav--grupos{border-left-color:var(--tp-accent-violet)}.tp-nav--grupos .tp-nav-icon{color:var(--tp-accent-violet)}.tp-nav--categorias{border-left-color:var(--tp-accent-coral)}.tp-nav--categorias .tp-nav-icon{color:var(--tp-accent-coral)}@media(prefers-reduced-motion:reduce){.tp-nav{transition:none}}@media(forced-colors:active){.tp-nav{border-left-color:CanvasText!important;background-color:Canvas!important;forced-color-adjust:auto}.tp-nav-icon{color:CanvasText!important}}.tp-details{background:var(--tp-inset);border:1px solid var(--tp-border);border-radius:0;margin-bottom:.75rem;overflow:hidden}.tp-details>summary{cursor:pointer;padding:.75rem 1rem;font-weight:600;font-size:1rem;display:flex;align-items:center;gap:.5rem;list-style:none;min-height:44px;color:var(--tp-text);background:var(--tp-inset);border-bottom:1px solid transparent;transition:background-color .15s ease,border-color .15s ease}.tp-details>summary::-webkit-details-marker{display:none}.tp-details>summary>.material-symbols-outlined:first-child{font-size:1.3rem;line-height:1;flex-shrink:0;color:var(--tp-muted)}.tp-details>summary .tp-caret{font-size:1.4rem;line-height:1;margin-left:auto;flex-shrink:0;color:var(--tp-faint);transition:transform .2s ease}.tp-details[open]>summary{background:var(--tp-inset);border-bottom-color:var(--tp-border)}.tp-details[open]>summary .tp-caret{transform:rotate(180deg)}.tp-details>summary:hover,.tp-details>summary:focus-visible{background:var(--tp-raised)}.tp-details-body{padding:1.25rem}.tp-details-body>p:last-child,.tp-details-body>ul:last-child,.tp-details-body>ol:last-child{margin-bottom:0}@media(prefers-reduced-motion:reduce){.tp-details>summary,.tp-details>summary .tp-caret{transition:none}.tp-details[open]>summary .tp-caret{transform:none}}@media(forced-colors:active){.tp-details{border-color:CanvasText;background:Canvas}.tp-details>summary{background:ButtonFace;color:ButtonText}}.tp-toc{background:var(--tp-inset);border:1px solid var(--tp-border)}.tp-toc-list{display:flex;flex-direction:column;gap:.4rem}.tp-toc-link{display:flex;align-items:center;gap:.75rem;padding:.65rem .85rem;border-radius:.4rem;background:var(--tp-inset);color:var(--tp-text);text-decoration:none;transition:background-color .15s ease,transform .15s ease}.tp-toc-link:hover,.tp-toc-link:focus-visible{background:#00aaff26;color:var(--tp-text);transform:translate(2px);text-decoration:none}.tp-toc-num{flex:0 0 auto;width:1.75rem;height:1.75rem;border-radius:50%;background:#00aaff40;color:var(--tp-text);display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}.tp-toc-text{flex:1 1 auto}.tp-toc-arrow{flex:0 0 auto;opacity:.6;transition:opacity .15s ease,transform .15s ease}.tp-toc-link:hover .tp-toc-arrow,.tp-toc-link:focus-visible .tp-toc-arrow{opacity:1;transform:translate(2px)}@media(prefers-reduced-motion:reduce){.tp-toc-link,.tp-toc-arrow{transition:none}.tp-toc-link:hover,.tp-toc-link:focus-visible{transform:none}.tp-toc-link:hover .tp-toc-arrow,.tp-toc-link:focus-visible .tp-toc-arrow{transform:none}}@media(forced-colors:active){.tp-toc-link{background:ButtonFace;color:ButtonText;border:1px solid ButtonText}.tp-toc-num{background:Highlight;color:HighlightText}}.rounded-4{border-radius:.5rem!important}.border-opacity-25{--bs-border-opacity: .25}.bg-opacity-50{--bs-bg-opacity: .5}