.err-page-header{max-width:760px;margin:0 auto;padding:24px 16px 16px}.err-page-subtitle{color:var(--swp-ink-2);margin:0;font-size:15px;line-height:1.6}.err-tool-wrapper{flex-direction:column;gap:16px;max-width:760px;margin:0 auto;padding:0 16px;display:flex}.err-filter-group{flex-wrap:wrap;gap:8px;display:flex}.err-filter-btn{border-radius:var(--r-pill);border:1.5px solid var(--swp-border);cursor:pointer;height:36px;color:var(--swp-ink);font-size:13px;font-weight:500;font-family:var(--font-sans);background:0 0;padding:0 14px;transition:background .15s,color .15s,border-color .15s}.err-filter-btn:hover{border-color:var(--color-primary);color:var(--color-primary)}.err-filter-btn:focus-visible{outline:none;box-shadow:0 0 0 3px #0f766e59}.err-filter-btn--active{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.err-filter-btn--active:hover{background:var(--color-primary);color:#fff}.err-input-section{background:var(--swp-surface);border:1.5px solid var(--swp-border);border-radius:var(--r-md);padding:16px;transition:border-color .15s,box-shadow .15s}.err-input-section:focus-within{border-color:var(--color-primary);box-shadow:0 0 0 3px #0f766e1f}.err-textarea{width:100%;font-family:var(--font-mono);border:1px solid var(--swp-border);border-radius:var(--r-sm);background:var(--swp-paper);color:var(--swp-ink);resize:vertical;box-sizing:border-box;outline:none;min-height:96px;padding:10px 12px;font-size:13px;line-height:1.6;transition:border-color .15s,box-shadow .15s}.err-textarea::placeholder{color:var(--swp-ink-3)}.err-textarea:focus{border-color:var(--color-primary);box-shadow:0 0 0 2px #0f766e1a}.err-input-footer{justify-content:flex-end;margin-top:8px;padding-bottom:4px;display:flex}.err-clear-btn{border:1px solid var(--swp-border);border-radius:var(--r-sm);color:var(--swp-ink-2);cursor:pointer;min-width:44px;height:28px;font-size:12px;font-family:var(--font-sans);background:0 0;align-items:center;padding:4px 10px;transition:border-color .1s,color .1s;display:inline-flex}.err-clear-btn:hover{border-color:var(--swp-ink-2);color:var(--swp-ink)}.err-clear-btn:focus-visible{outline:none;box-shadow:0 0 0 3px #0f766e59}.err-result-region{min-height:80px}.err-count-badge{border-radius:var(--r-pill);color:#065f46;background:#ecfdf5;align-items:center;margin-bottom:12px;padding:4px 12px;font-size:13px;font-weight:600;display:inline-flex}.err-card-list{flex-direction:column;gap:16px;display:flex}.err-card{background:var(--swp-surface);border:1.5px solid var(--swp-border);border-radius:var(--r-md);flex-direction:column;gap:12px;padding:20px;transition:box-shadow .15s,border-color .15s;display:flex}.err-card:hover{border-color:var(--color-primary);box-shadow:0 2px 8px #0000000f}.err-card__header{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.err-card__icon{flex-shrink:0;font-size:20px}.err-card__title{color:var(--swp-ink);flex:1;margin:0;font-size:16px;font-weight:600}.err-lang-badge{border-radius:var(--r-pill);white-space:nowrap;flex-shrink:0;padding:2px 8px;font-size:11px;font-weight:700}.err-lang-badge--html{color:#0f766e;background:#ccfbf1}.err-lang-badge--css{color:#854d0e;background:#fef9c3}.err-lang-badge--js{color:#6d28d9;background:#ede9fe}.err-lang-badge--env{color:#166534;background:#dcfce7}.err-card__body{border-top:1px solid var(--swp-border);flex-direction:column;gap:10px;padding-top:12px;display:flex}.err-card__section{grid-template-columns:44px 1fr;align-items:start;gap:0 10px;display:grid}.err-card__label{color:var(--swp-ink-2);text-transform:uppercase;letter-spacing:.05em;padding-top:2px;font-size:11px;font-weight:700}.err-card__section p,.err-card__section div{color:var(--swp-ink);margin:0;font-size:14px;line-height:1.7}.err-card__section code{font-size:13px}.err-card__footer{border-top:1px solid var(--swp-border);justify-content:flex-end;margin-top:4px;padding-top:10px;display:flex}.err-card__link{color:var(--color-primary);padding:8px 0;font-size:13px;font-weight:500;text-decoration:none;display:inline-block}.err-card__link:hover{text-decoration:underline}.err-guidance{background:var(--swp-paper);border:1.5px dashed var(--swp-border);border-radius:var(--r-md);color:var(--swp-ink-2);padding:24px 20px;font-size:15px}.err-guidance__title{color:var(--swp-ink);margin:0 0 14px;font-size:15px;font-weight:600}.err-guidance__steps{counter-reset:steps;flex-direction:column;gap:10px;margin:0 0 14px;padding:0;list-style:none;display:flex}.err-guidance__step{counter-increment:steps;color:var(--swp-ink);align-items:flex-start;gap:10px;font-size:15px;line-height:1.8;display:flex}.err-guidance__step:before{content:counter(steps);background:var(--color-primary);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:22px;min-width:22px;height:22px;margin-top:2px;font-size:12px;font-weight:700;display:inline-flex}.err-guidance__langs{color:var(--swp-ink-2);margin:0;font-size:13px}.err-empty-msg{text-align:center;padding:32px 16px}.err-empty-msg__icon{margin-bottom:8px;font-size:32px;display:block}.err-empty-msg__text{color:var(--swp-ink-2);margin-bottom:16px;font-size:15px}.err-empty-msg__link{background:var(--color-primary);color:#fff;border-radius:var(--r-md);align-items:center;gap:6px;padding:10px 20px;font-size:14px;font-weight:500;text-decoration:none;display:inline-flex}.err-empty-msg__link:hover{opacity:.9}.err-section-page{max-width:760px;margin-left:auto;margin-right:auto;padding:0 16px}.err-section-page-title{color:var(--swp-ink);margin:0 0 16px;font-size:clamp(18px,4vw,22px);font-weight:700}.err-steps{flex-direction:column;gap:10px;margin:0;padding-left:20px;display:flex}.err-steps li{color:var(--swp-ink);font-size:15px;line-height:1.6}.err-related-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.err-related-tools{flex-direction:column;gap:8px;display:flex}.err-related-link{color:var(--color-primary);font-size:15px;text-decoration:none}.err-related-link:hover{text-decoration:underline}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width<=767px){.err-tool-wrapper,.err-section-page{padding:0 12px}}@media (prefers-reduced-motion:reduce){.err-filter-btn,.err-card{transition:none}}.err-body-text{color:var(--swp-ink);margin:0 0 12px;font-size:15px;line-height:1.8}.err-compare-grid{grid-template-columns:1fr 1fr;gap:16px;margin-top:12px;display:grid}@media (width<=640px){.err-compare-grid{grid-template-columns:1fr}}.err-compare-card{border-radius:var(--r-md);background:var(--swp-teal-50);border:1.5px solid var(--swp-border);padding:14px}.err-compare-label{color:var(--swp-ink);margin:0 0 8px;font-size:14px;font-weight:700}.err-compare-list{color:var(--swp-ink);margin:0;padding-left:18px;font-size:14px;line-height:1.7}.err-use-cases{flex-direction:column;gap:14px;margin:0;padding:0;list-style:none;display:flex}.err-use-cases li{color:var(--swp-ink);font-size:15px;line-height:1.7}.err-faq{margin:0}.err-faq dt{color:var(--swp-ink);margin-top:16px;font-size:15px;font-weight:700}.err-faq dt:first-child{margin-top:0}.err-faq dd{color:var(--swp-ink-2);margin:6px 0 0;font-size:15px;line-height:1.7}