:root{color-scheme:light;--blue:#1e88e5;--blue-dark:#1565c0;--green:#176c2e;--ink:#212121;--muted:#565f6b;--line:#e2e8f0;--pale:#e3f2fd;--white:#fff}*{box-sizing:border-box}body{margin:0;background:#fff;color:var(--ink);font:16px/1.65 'Segoe UI',Arial,sans-serif}a{color:var(--blue-dark);text-underline-offset:3px}button,input,select{font:inherit}button,a,input,select,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--blue-dark);outline-offset:4px}img{max-width:100%;height:auto}[hidden]{display:none!important}.skip{position:absolute;top:-100px;left:15px;padding:10px;background:#fff;z-index:10}.skip:focus{top:10px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}header{background:#fff;border-bottom:1px solid var(--line);box-shadow:0 2px 9px #00000006}.nav-shell{max-width:1510px;margin:auto;padding:18px 28px;display:flex;align-items:center;gap:32px}.brand{display:flex;gap:11px;align-items:center;font-size:24px;font-weight:750;letter-spacing:-.7px;text-decoration:none;color:var(--blue-dark);white-space:nowrap}.brand img{width:42px;height:42px;object-fit:contain;border-radius:8px}.nav-shell nav{display:flex;gap:26px;margin-left:auto}.nav-shell nav a{font-weight:600;text-decoration:none;color:#333}.global-search{display:flex;align-items:center;border:1px solid #cddce9;border-radius:24px;overflow:hidden;width:260px;background:#f7fbff}.global-search input{width:100%;min-width:0;border:0;background:transparent;padding:9px 13px}.global-search button{border:0;background:transparent;color:var(--blue-dark);font-size:27px;cursor:pointer;padding:0 14px}.page-layout{max-width:1510px;margin:0 auto;display:grid;grid-template-columns:minmax(165px,1fr) minmax(0,4fr) minmax(180px,1fr);gap:28px;padding:30px 28px 75px}main{min-width:0}.left-rail,.right-rail{padding-top:24px}.rail-panel{border:1px solid var(--line);border-radius:10px;box-shadow:0 3px 10px #00000004;padding:20px;margin-bottom:22px;background:#fff}.rail-panel h2{font-size:16px;line-height:1.4;margin:0 0 18px}.rail-panel p,.rail-panel li,.rail-panel a{font-size:13px}.rail-panel ul{padding-left:18px}.rail-panel p{color:var(--muted)}.category-link{display:flex;align-items:center;gap:10px;text-decoration:none;padding:11px 0;color:#333;border-bottom:1px solid #eff2f6}.category-link:last-child{border:0}.category-link img{width:26px;height:26px;object-fit:contain;flex-shrink:0}.rail-note{background:#eef6ff;padding:20px;border-radius:10px;font-size:13px}.rail-note p{color:var(--muted)}.hero{text-align:center;padding:42px 14px 38px;background:radial-gradient(ellipse at top,#eef7ff 0,white 65%);border-radius:16px}.section-label{font-size:11px;letter-spacing:1.8px;text-transform:uppercase;font-weight:700;color:var(--blue-dark)}h1,h2,h3{line-height:1.2}h1{font-size:clamp(35px,3.5vw,52px);font-weight:750;letter-spacing:-1.8px;margin:16px 0 22px}.hero h1 span{color:var(--blue)}.hero p{font-size:19px;color:#424b57;max-width:620px;margin:16px auto}.hero .hero-detail{font-size:15px;max-width:590px;color:var(--muted)}.button,.actions button,.download-button{display:inline-flex;align-items:center;justify-content:center;gap:16px;border:0;border-radius:8px;padding:12px 23px;background:var(--blue-dark);color:white;text-decoration:none;font-weight:650;cursor:pointer}.hero .button{margin-top:12px}.featured,.category-section{margin-top:36px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 20px}.section-heading h2{margin:7px 0 0;font-size:25px;letter-spacing:-.5px}.count-badge{font-size:12px;background:#eef6ff;color:var(--blue-dark);padding:6px 10px;border-radius:20px;white-space:nowrap}.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.tool-card{display:flex;align-items:flex-start;gap:14px;padding:22px 18px;border:1px solid var(--line);border-radius:10px;background:#fafcfe;position:relative;min-width:0}.tool-card>img{width:48px;height:48px;object-fit:contain;flex-shrink:0}.tool-card h3{margin:0 0 10px;font-size:17px}.tool-card h3 a{text-decoration:none;color:var(--blue-dark)}.tool-card p{font-size:13px;color:var(--muted);margin:0 0 11px}.status{font-size:10px;color:#565f6b;padding:4px 7px;border-radius:4px;background:#e9edf2}.status.available{color:var(--green);background:#eaf6ed}.card-action{align-self:center;text-decoration:none;font-size:25px;margin-left:auto;color:var(--blue-dark)}.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.category-grid a{display:flex;flex-direction:column;align-items:center;gap:12px;padding:18px 8px;background:#fff;border:1px solid var(--line);border-radius:9px;text-decoration:none;text-align:center}.category-grid img{width:38px;height:38px;object-fit:contain}.category-grid strong{font-size:12px;color:#3c4a58}.category-section h2{font-size:23px}.muted{font-size:13px;color:var(--muted)}.benefits{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px;margin-top:40px;padding:28px 0;border-top:1px solid var(--line)}.benefit-number{font-size:12px;color:var(--blue-dark);background:#e3f2fd;padding:4px 8px;border-radius:5px}.benefits h3{font-size:15px}.benefits p{font-size:13px;color:var(--muted)}footer{max-width:1510px;margin:auto;padding:28px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:28px;font-size:13px}footer strong{color:var(--blue-dark);font-size:18px}footer p{margin:6px 0;color:var(--muted)}footer nav{display:flex;flex-wrap:wrap;gap:24px}.page-heading{padding:20px 0}.page-heading h1{font-size:39px}.page-heading p{color:var(--muted)}.catalog-controls{display:flex;gap:20px;padding:20px;background:#f1f8ff;border-radius:10px}.catalog-controls label{flex:1;font-size:13px;font-weight:600}.catalog-controls input,.catalog-controls select{display:block;width:100%;padding:11px;border:1px solid #c5d5e5;border-radius:6px;background:#fff;margin-top:7px}.rebuild-list{margin-top:36px}.rebuild-list summary{font-weight:650;color:var(--blue-dark);cursor:pointer}.rebuild-list .tool-grid{margin-top:20px}.unavailable{background:#f8fafc}.unavailable h3{color:#424b57}.tool-title{display:flex;align-items:center;gap:18px}.tool-title img{width:56px;height:56px;object-fit:contain}.tool-title h1{font-size:35px}.workspace{background:#f0faff;border:1px solid #cfe4f6;border-radius:12px;padding:28px}.workspace-top{text-align:center}.workspace-top img{width:44px;height:44px;object-fit:contain}.workspace-top h2{font-size:23px;margin:12px 0}.workspace-top p{font-size:13px;color:var(--muted)}.tool-controls{display:grid;gap:20px;margin-top:26px}.file-label{background:#e3f2fd;padding:18px;border:1px dashed #90caf9;border-radius:8px;display:grid;gap:10px}.tool-controls input[type=file]{max-width:100%;font-size:14px}.check{display:flex;align-items:center;gap:9px}.check input{width:19px;height:19px}.size-controls{display:grid;grid-template-columns:1fr 1fr;gap:16px}.size-controls label{font-size:13px;font-weight:600}.size-controls input{display:block;width:100%;padding:10px;border:1px solid #b9d5e9;border-radius:6px;margin-top:6px}.actions{display:flex;gap:12px;flex-wrap:wrap}.actions .secondary{background:#fff;border:1px solid #a9c8e3;color:var(--blue-dark)}button:disabled{opacity:.6;cursor:wait}#tool-status{padding:12px;background:#fff;border-radius:6px;font-size:14px}#file-details{font-size:13px;color:var(--muted)}#result-preview{display:block;max-height:400px;margin:22px auto;background:#fff;border:1px solid var(--line);object-fit:contain}.download-button{background:var(--green)}.tool-help{padding:24px 0;font-size:14px;color:var(--muted)}.tool-help h2{font-size:20px;color:var(--ink)}.content-page{padding:28px 0;max-width:760px}.content-page p{line-height:1.9}.back-link{font-size:13px}@media(max-width:1200px){.page-layout{grid-template-columns:160px minmax(0,1fr)}.right-rail{display:none}.nav-shell{gap:22px}.global-search{width:220px}.nav-shell nav{gap:18px}}@media(max-width:850px){.page-layout{display:block;padding:20px 20px 55px}.left-rail{display:none}.nav-shell{flex-wrap:wrap;padding:15px 20px;gap:16px}.nav-shell nav{margin-left:auto}.global-search{width:100%}.hero{padding:24px 4px}.category-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.brand{font-size:22px}}@media(max-width:540px){h1{font-size:36px}.hero p{font-size:17px}.hero .hero-detail{font-size:14px}.tool-grid{grid-template-columns:1fr}.category-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.benefits{grid-template-columns:1fr;gap:14px}.section-heading{align-items:flex-start}.count-badge{font-size:10px}.catalog-controls{flex-direction:column}.size-controls{grid-template-columns:1fr}.workspace{padding:20px 16px}.tool-title h1{font-size:29px}.tool-card{padding:20px 16px}.nav-shell nav{gap:14px;font-size:13px}.brand{font-size:20px}.brand img{width:34px;height:34px}footer{align-items:flex-start;flex-direction:column}.actions button{width:100%}}
/* Owner's browser-adjusted spacing, 2026-10-31. Keep responsive bottom padding. */
.page-layout{max-width:none;width:100%;margin-left:0;padding-top:10px;padding-left:10px;padding-right:10px}
.left-rail{padding-top:0}
.right-rail{padding-top:10px}
.hero{padding:0}

/* Compact symmetric rails and persistent navigation, requested by the owner. */
html{scroll-padding-top:70px}
header{position:sticky;top:0;z-index:100;background:#fff}
.skip{z-index:110}
.nav-shell{min-height:58px;padding-top:8px;padding-bottom:8px}
.brand img{width:30px;height:30px}
.global-search input{font-size:14px;line-height:1.4;padding-top:6px;padding-bottom:6px}
.global-search button{font-size:22px;line-height:1}
.left-rail,.right-rail{padding-top:0}
#main{scroll-margin-top:70px}
@media(min-width:1201px){.page-layout{grid-template-columns:minmax(150px,.75fr) minmax(0,4.5fr) minmax(150px,.75fr)}}
@media(min-width:851px) and (max-width:1200px){.page-layout{grid-template-columns:120px minmax(0,1fr)}.left-rail .rail-panel,.left-rail .rail-note{padding:12px}.category-link{gap:8px}.category-link img{width:22px;height:22px}}
@media(max-width:850px){html{scroll-padding-top:110px}.nav-shell{min-height:0;padding-top:6px;padding-bottom:6px;row-gap:8px}#main{scroll-margin-top:110px}}

/* Owner catalogue heading refinements; retain compact shell and symmetric gutters. */
.catalog-heading{padding-top:0;padding-bottom:0}
.catalog-heading h1{margin-top:0;margin-bottom:0}
.catalog-heading p{margin-top:8px;margin-bottom:8px}

/* Shared owner-defined inset for both sidebar columns. */
.left-rail,.right-rail{padding:10px}

/* Owner: remove all outer page-layout padding. */
.page-layout{padding:0}

/* Owner-approved hero heading and action spacing. */
.hero h1{padding:0;margin-top:10px;margin-bottom:0}
.hero .button{margin-bottom:10px}