:root{color-scheme:light;--bg-dark: #ebebeb;--text-main: #3a3a40;--text-muted: #5e5e66;--text-topline: #5e5e66;--text-p: #1a1a1c;--accent: #ff3b30;--accent-hover: #e52e24;--grid-line: rgba(0, 0, 0, .12);--tool-surface: #fff;--tool-inset: #f4f4f2;--tool-blue: #1e7fd9;--font-logo: "Bebas Neue", sans-serif;--font-display: "Space Grotesk", sans-serif;--font-body: "Inter", sans-serif;--font-tech: "JetBrains Mono", monospace}body.tool-page{margin:0;padding-bottom:0;background:var(--bg-dark);color:var(--text-p);font-family:var(--font-display);line-height:1.6}.tool-page p{font-family:var(--font-body);font-weight:400}.tool-page a{color:#c62828;text-underline-offset:.2em}.tool-page a:hover{color:#9f211b}.tool-page :focus-visible{outline:2px solid var(--tool-blue);outline-offset:3px}.tool-nav{position:sticky;top:0;z-index:100;padding:1rem max(1.25rem,calc((100vw - 1080px)/2));display:flex;flex-wrap:wrap;gap:.75rem 2rem;align-items:center;justify-content:space-between;color:var(--text-p);background:#ebebebf5;border-bottom:1px solid var(--grid-line);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.tool-nav-brand{display:flex;align-items:center;gap:1rem}.tool-nav .tool-nav-logo{color:var(--text-p);font-family:var(--font-logo);font-size:2.2rem;line-height:1;letter-spacing:.02em;opacity:1;text-decoration:none}.tool-nav-label{color:var(--text-muted);opacity:1;font:.68rem/1.4 var(--font-tech);letter-spacing:.08em}.tool-nav-links{display:flex;flex-wrap:wrap;gap:1.25rem;font:.7rem/1.5 var(--font-tech)}.tool-nav-links a{color:var(--text-main);text-decoration:none}.tool-nav-links a:hover{color:#c62828}.tool-nav-meta{min-height:0;font:.7rem/1.5 var(--font-tech);color:var(--text-muted)}.tool-shell{min-height:calc(100vh - 70px);padding:clamp(1.5rem,4vw,3.5rem) 1.25rem 4rem;background:var(--bg-dark)}.tool-content{width:min(100%,960px);min-width:0;margin:0 auto}.tool-content>*,.upload-option{min-width:0}.teensy-container,.sd-container{max-width:960px;margin:0 auto}.tool-header{margin:0 0 1.75rem;max-width:720px}.tool-kicker{margin-bottom:.6rem;color:#c62828;font:.7rem/1.5 var(--font-tech);letter-spacing:.08em;text-transform:uppercase}.tool-header h1{font-family:var(--font-display);font-size:clamp(2rem,5vw,3.5rem);font-weight:400;letter-spacing:-.045em;line-height:1.06;margin:0 0 .85rem;color:var(--text-p)}.tool-header>p:last-child{color:var(--text-muted);font-size:1rem;max-width:58ch}.tool-card,.sd-section,.teensy-section{background:var(--tool-surface);border:1px solid var(--grid-line);border-radius:10px;box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;padding:clamp(1.1rem,3vw,1.75rem)}.tool-card{margin:0}.tool-card h2,.sd-section h2,.teensy-section h2,dialog h2{font-family:var(--font-display);font-size:1.25rem;line-height:1.25;font-weight:500;letter-spacing:-.025em;text-transform:none;color:var(--text-p)}.tool-card h2{margin-bottom:.75rem}.teensy-section h2{font-family:var(--font-logo);font-size:1.65rem;font-weight:400;letter-spacing:.01em;text-transform:uppercase}.tool-page:has(.teensy-container){font-family:var(--font-body)}.teensy-section p,.teensy-intro p,.teensy-intro ol{opacity:1}.tool-subline,.sd-help{color:var(--text-muted)}.tool-page button,.file-btn,.sd-download-btn{min-height:42px}.sd-btn,.file-btn,.teensy-btn,.sd-download-btn{background:var(--tool-inset);color:var(--text-p);border:1px solid var(--grid-line);border-radius:5px;font-family:var(--font-tech);font-size:.75rem;font-weight:400;letter-spacing:.02em;text-transform:none;padding:.65rem .9rem;box-shadow:none;text-decoration:none;transition:background .15s,border-color .15s}.sd-btn:hover,.file-btn:hover,.teensy-btn:hover,.sd-download-btn:hover{background:#e7e7e4;color:var(--text-p);border-color:#00000040;transform:none}#submitBtn,#uploadFirmwareBtn,.sd-btn.primary{background:var(--accent);color:#fff;border:1px solid var(--accent);border-radius:5px;font-family:var(--font-tech);font-size:.75rem;letter-spacing:.02em;text-transform:none}#submitBtn:hover:enabled,#uploadFirmwareBtn:hover:enabled,.sd-btn.primary:hover:enabled{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff}.sd-btn.danger{color:#c62828}.tool-page button:disabled{opacity:.45;cursor:not-allowed}.tool-form input[type=file],dialog input,#log{background:var(--tool-inset);border:1px solid var(--grid-line);color:var(--text-p);border-radius:5px}.tool-form input[type=file]::file-selector-button{background:#e7e7e4;color:var(--text-p);border:1px solid var(--grid-line);border-radius:4px;padding:.45rem .65rem;cursor:pointer}.teensy-firmware-option{background:var(--tool-inset);border:1px solid var(--grid-line);border-radius:5px;padding:.6rem .9rem}.teensy-firmware-option:has(input:checked){border-color:var(--tool-blue);background:#edf5fd}.teensy-firmware-option input,.autoplay input{accent-color:var(--tool-blue)}.teensy-reset-img{max-width:min(100%,340px);border-radius:6px}.teensy-serial-toggle,.sd-tree,.sd-info-block,.dbg-panel{background:var(--tool-inset);border:1px solid var(--grid-line);box-shadow:none}.teensy-serial-toggle summary:hover{background:#e7e7e4}.sd-tree-highlight{background:#e4effa;color:#154e80;box-shadow:inset 3px 0 var(--tool-blue)}.status.is-success,.dbg-panel .dbg-ok{color:#216349}.dbg-panel .dbg-err{color:#b32b23}.row:hover{background:var(--tool-inset)}.row.selected{background:#edf5fd;outline-color:#98bfe3}.banner.ok{background:#edf5fd;border-color:#98bfe3}.banner.err,.teensy-beta-warning{background:#fff0ee;border-color:#edb3ae}.spinner{border-color:#d4d4d1;border-top-color:var(--accent)}dialog{background:var(--tool-surface);box-shadow:0 12px 40px #00000026}dialog::backdrop{background:#1a1a1c59}.drop-hint{background:#fffffff0}.xfer{background:#fffffff7;box-shadow:0 -4px 20px #0000000f}.xfer-track,.progress-track{background:#e7e7e4;border-color:var(--grid-line)}.progress-fill{background:var(--tool-blue)}#flashProgress{width:100%;height:8px;accent-color:var(--tool-blue)}#flashProgress::-webkit-progress-bar{background:#e7e7e4;border-radius:8px}#flashProgress::-webkit-progress-value{background:var(--tool-blue);border-radius:8px}#flashProgress::-moz-progress-bar{background:var(--tool-blue);border-radius:8px}.teensy-status-section #status{background:var(--tool-inset);border:1px solid var(--grid-line);color:var(--text-p);border-radius:5px}.teensy-guide{margin:0 0 1.5rem}.teensy-guide ol{margin-left:1.25rem;font-family:var(--font-body);font-size:.9rem}.teensy-guide li+li{margin-top:.5rem}.teensy-guide li::marker{color:#c62828}.teensy-attribution-footer{margin-top:2rem;font-size:.7rem}@media(max-width:720px){.tool-nav{padding:1rem 1.25rem;gap:.75rem}.tool-nav-brand{gap:.75rem}.tool-nav-links{gap:1rem}.tool-shell{padding:1.5rem 1rem 3rem}.tool-header{margin-bottom:1.25rem}.upload-row{grid-template-columns:minmax(0,1fr)}.tool-form input[type=file]{min-width:0;font-size:.8rem}.cols,.row{grid-template-columns:28px minmax(0,1fr) 64px auto;column-gap:.4rem}.row .ops{flex-wrap:wrap}.row .ops .sd-btn{padding:.35rem .5rem;min-height:36px}.sd-head{flex-wrap:wrap}.teensy-buttons{gap:.5rem}.sd-download-btn{max-width:100%;overflow-wrap:anywhere}}@media(max-width:480px){.tool-nav-meta{flex-basis:100%}.row .ops{grid-column:2 / -1;justify-content:flex-start}.cols{grid-template-columns:28px minmax(0,1fr) 64px}.cols>:last-child{display:none}}@media(prefers-reduced-motion:reduce){.tool-page *,.tool-page *:before,.tool-page *:after{transition:none!important}}