:root{color-scheme:light;--font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "Cascadia Code", "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;--color-bg: #f8fafc;--color-surface: #ffffff;--color-surface-muted: #f1f5f9;--color-border: #e2e8f0;--color-text: #0f172a;--color-text-muted: #475569;--color-text-soft: #64748b;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-soft: #dbeafe;--color-primary-contrast: #ffffff;--color-primary-active: #1d4ed8;--color-accent: #0891b2;--color-accent-strong: #0e7490;--color-success: #16a34a;--color-warning: #d97706;--color-error: #dc2626;--shadow-card: 0 8px 24px rgb(15 23 42 / 8%);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 18px;--color-background: var(--color-bg);--color-surface-subtle: var(--color-surface-muted);--color-surface-raised: #ffffff;--color-border-strong: #cbd5e1;--color-accent-contrast: var(--color-primary-contrast);--color-accent-soft: var(--color-primary-soft);--color-focus: var(--color-primary);--color-danger-surface: color-mix(in srgb, var(--color-error) 9%, var(--color-surface));--color-danger-border: color-mix(in srgb, var(--color-error) 45%, var(--color-border));--color-danger-text: var(--color-error);--shadow-soft: var(--shadow-card);--shadow-subtle: 0 1px 2px rgb(15 23 42 / 8%);--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--sidebar-width: 18rem;--header-height: 5rem;--z-mobile-nav: 30;--z-mobile-subnav: 31;--z-header: 40;--z-sidebar: 50;--z-nav-flyout: 70;font-family:var(--font-sans)}:root[data-theme=dark]{color-scheme:dark;--color-bg: #020617;--color-surface: #0f172a;--color-surface-muted: #1e293b;--color-border: #334155;--color-text: #f8fafc;--color-text-muted: #cbd5e1;--color-text-soft: #94a3b8;--color-primary: #60a5fa;--color-primary-hover: #3b82f6;--color-primary-soft: #172554;--color-primary-contrast: #020617;--color-primary-active: #60a5fa;--color-accent: #22d3ee;--color-accent-strong: #22d3ee;--color-success: #22c55e;--color-warning: #f59e0b;--color-error: #f87171;--shadow-card: 0 8px 24px rgb(0 0 0 / 35%);--color-background: var(--color-bg);--color-surface-subtle: var(--color-surface-muted);--color-surface-raised: #111c2f;--color-border-strong: #475569;--color-accent-contrast: var(--color-primary-contrast);--color-accent-soft: var(--color-primary-soft);--color-focus: var(--color-primary);--color-danger-surface: color-mix(in srgb, var(--color-error) 18%, var(--color-surface));--color-danger-border: color-mix(in srgb, var(--color-error) 55%, var(--color-border));--color-danger-text: var(--color-error);--shadow-soft: var(--shadow-card);--shadow-subtle: 0 1px 2px rgb(0 0 0 / 28%)}*{box-sizing:border-box}html{min-width:320px;background:var(--color-background);color:var(--color-text);font-family:var(--font-sans);font-size:16px}body{min-width:320px;min-height:100vh;margin:0;background:var(--color-background);font-family:var(--font-sans);font-feature-settings:"cv02","cv03","cv04","cv11";text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}::selection{background:var(--color-primary-soft);color:var(--color-primary-active)}button,input,select,textarea{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid color-mix(in srgb,var(--color-focus) 32%,transparent);outline-offset:2px}#root{min-height:100vh}.app-shell{display:grid;grid-template-columns:var(--sidebar-width) minmax(0,1fr);min-height:100vh}.app-workspace{min-width:0}.sidebar{position:sticky;top:0;z-index:var(--z-sidebar);display:flex;height:100vh;flex-direction:column;gap:var(--space-8);padding:var(--space-6);overflow-y:auto;border-right:1px solid var(--color-border);background:var(--color-surface)}.brand{display:flex;width:100%;align-items:center;gap:var(--space-3);padding:0;border:0;background:transparent;text-align:left;cursor:pointer}.brand-mark,.tool-mark,.tool-page-mark{display:inline-grid;place-items:center;flex:0 0 auto;border-radius:var(--radius-md);background:var(--color-primary-soft);color:var(--color-primary-active);font-family:var(--font-mono);font-weight:700}.brand-mark{width:2.75rem;height:2.75rem}.brand strong,.brand small{display:block}.brand strong{font-size:1rem;letter-spacing:0}.brand small{margin-top:var(--space-1);color:var(--color-text-muted);font-size:.78rem;font-family:var(--font-mono)}.nav-list,.mobile-nav-panel{display:flex;flex-direction:column;gap:var(--space-2)}.nav-group{display:grid;gap:var(--space-2)}.nav-section-label{margin:var(--space-4) 0 var(--space-1);color:var(--color-text-soft);font-family:var(--font-mono);font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.nav-link{width:100%;min-height:2.5rem;padding:var(--space-2) var(--space-3);border:0;border-radius:var(--radius-md);background:transparent;color:var(--color-text-muted);font-weight:650;text-align:left;cursor:pointer;transition:background-color .16s ease,color .16s ease,transform .16s ease}.nav-link:hover{background:var(--color-surface-subtle);color:var(--color-text)}.nav-link.is-active{background:var(--color-primary-soft);color:var(--color-primary-active);font-weight:700}.nav-parent-button{display:grid;min-height:3.25rem;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:var(--space-3)}.nav-parent-mark{display:inline-grid;width:2rem;height:2rem;place-items:center;border-radius:var(--radius-sm);background:color-mix(in srgb,var(--color-primary-soft) 74%,var(--color-surface));color:var(--color-primary-active);font-family:var(--font-mono);font-size:.72rem;font-weight:800;letter-spacing:.02em}.nav-parent-copy{display:grid;min-width:0;gap:.12rem}.nav-parent-copy span,.nav-parent-copy small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-parent-copy small{color:var(--color-text-soft);font-family:var(--font-mono);font-size:.72rem;font-weight:650}.nav-chevron{display:inline-grid;width:1rem;height:1rem;place-items:center;color:var(--color-text-soft)}.nav-chevron:before{width:.42rem;height:.42rem;border-right:2px solid currentColor;border-bottom:2px solid currentColor;content:"";transform:rotate(-45deg);transition:transform .16s ease}.nav-parent-button[aria-expanded=true] .nav-chevron:before{transform:rotate(135deg)}.nav-flyout{position:fixed;top:0;left:var(--sidebar-width);z-index:var(--z-nav-flyout);display:flex;width:min(22rem,calc(100vw - var(--sidebar-width)));height:100vh;flex-direction:column;gap:var(--space-5);padding:var(--space-6);border-right:1px solid var(--color-border);border-left:1px solid var(--color-border);background:var(--color-surface);box-shadow:var(--shadow-card);opacity:0;pointer-events:none;transform:translate(-1rem);transition:opacity .18s ease,transform .18s ease,visibility .18s ease;visibility:hidden}.nav-flyout.is-open{opacity:1;pointer-events:auto;transform:translate(0);visibility:visible}.nav-flyout-header{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:var(--space-3)}.nav-flyout-header h2{margin:var(--space-1) 0 0;color:var(--color-text);font-size:1.05rem;line-height:1.2}.nav-flyout-close{display:inline-grid;width:2.25rem;height:2.25rem;place-items:center;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-text-muted);cursor:pointer;transition:background-color .16s ease,color .16s ease,transform .16s ease}.nav-flyout-close:hover{background:var(--color-surface-subtle);color:var(--color-text);transform:translate(-1px)}.nav-submenu{display:grid;flex:1;gap:var(--space-4);min-height:0;overflow-y:auto;padding-right:var(--space-1)}.nav-menu-search{display:grid;gap:var(--space-2);color:var(--color-text-muted);font-size:.82rem;font-weight:700}.nav-menu-search span{font-family:var(--font-mono);letter-spacing:.02em}.nav-menu-search input{width:100%;min-height:2.55rem;padding:0 var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-text);box-shadow:var(--shadow-subtle)}.nav-empty-state{padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-subtle);color:var(--color-text-muted);font-weight:650}.nav-subsection{display:grid;gap:var(--space-1)}.nav-subsection-label{color:var(--color-text-soft);font-family:var(--font-mono);font-size:.68rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase}.nav-child-link{min-height:2.2rem;padding:var(--space-1) var(--space-3);border-radius:var(--radius-sm);font-size:.92rem;font-weight:620}.app-header{position:sticky;top:0;z-index:var(--z-header);display:grid;min-height:var(--header-height);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:var(--space-4);padding:var(--space-4) var(--space-8);border-bottom:1px solid var(--color-border);background:color-mix(in srgb,var(--color-background) 92%,transparent);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.header-actions{display:flex;min-width:0;align-items:center;justify-content:flex-end;gap:var(--space-3)}.top-used-nav{display:flex;min-width:0;align-items:center;gap:var(--space-2)}.top-used-label{color:var(--color-text-soft);font-family:var(--font-mono);font-size:.7rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap}.top-used-list{display:flex;max-width:min(44vw,30rem);min-width:0;gap:var(--space-1);overflow:hidden}.top-used-chip{min-width:2.25rem;height:2rem;padding:0 var(--space-2);border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-surface);color:var(--color-text-muted);font-family:var(--font-mono);font-size:.72rem;font-weight:800;cursor:pointer;transition:background-color .16s ease,border-color .16s ease,color .16s ease,transform .16s ease}.top-used-chip:hover{border-color:color-mix(in srgb,var(--color-primary) 50%,var(--color-border));background:var(--color-primary-soft);color:var(--color-primary-active);transform:translateY(-1px)}.header-title h1,.dashboard-heading h2,.tool-page-heading h2,.message-box h2,.tool-card h3{margin:0;line-height:1.15}.header-title h1{margin-top:var(--space-1);font-size:clamp(1.25rem,2vw,1.65rem);font-weight:760}.eyebrow,.tool-category{color:var(--color-accent-strong);font-family:var(--font-mono);font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.icon-button{display:inline-grid;width:2.5rem;height:2.5rem;place-items:center;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);box-shadow:var(--shadow-subtle);cursor:pointer}.mobile-menu-button{display:none}.menu-icon{position:relative;width:1rem;height:.85rem}.menu-icon:before,.menu-icon:after{position:absolute;left:0;width:100%;height:2px;border-radius:999px;background:currentColor;content:"";transition:top .16s ease,bottom .16s ease,transform .16s ease}.menu-icon:before{top:.16rem}.menu-icon:after{bottom:.16rem}.menu-icon.is-open:before{top:.42rem;transform:rotate(45deg)}.menu-icon.is-open:after{bottom:.3rem;transform:rotate(-45deg)}.theme-toggle{display:inline-flex;min-width:7.25rem;align-items:center;justify-content:space-between;gap:var(--space-2);padding:var(--space-2);border:1px solid var(--color-border);border-radius:999px;background:var(--color-surface);box-shadow:var(--shadow-subtle);cursor:pointer}.theme-toggle-track{position:relative;width:2.5rem;height:1.35rem;border-radius:999px;background:var(--color-surface-subtle)}.theme-toggle-thumb{position:absolute;top:.2rem;left:.22rem;width:.95rem;height:.95rem;border-radius:999px;background:var(--color-primary);transition:transform .16s ease}.theme-toggle[aria-pressed=true] .theme-toggle-thumb{transform:translate(1.1rem)}.theme-toggle-label{color:var(--color-text-muted);font-family:var(--font-mono);font-size:.85rem;font-weight:700}.mobile-nav,.mobile-nav[hidden]{display:none}.app-main{width:min(100%,74rem);margin:0 auto;padding:var(--space-8)}.page-stack{display:grid;gap:var(--space-6)}.dashboard-heading{display:grid;grid-template-columns:minmax(0,1fr) minmax(16rem,22rem);align-items:end;gap:var(--space-6)}.dashboard-heading p,.tool-page-heading p,.message-box p,.tool-card p{margin:var(--space-3) 0 0;color:var(--color-text-muted);line-height:1.65}.dashboard-heading h2,.tool-page-heading h2{margin-top:var(--space-2);font-size:clamp(2rem,4vw,3.4rem);font-weight:760;letter-spacing:0}.tool-search{display:grid;gap:var(--space-2);color:var(--color-text-muted);font-size:.85rem;font-weight:700}.tool-search input{width:100%;min-height:2.8rem;padding:0 var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text);box-shadow:var(--shadow-subtle)}.catalog-toolbar{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));overflow:hidden;border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-subtle)}.catalog-toolbar div{display:grid;gap:var(--space-1);min-height:5rem;align-content:center;padding:var(--space-4) var(--space-5)}.catalog-toolbar div+div{border-left:1px solid var(--color-border)}.catalog-toolbar strong{font-size:1.35rem}.catalog-toolbar span{color:var(--color-text-muted);font-size:.85rem}.tool-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-4)}.tool-card{display:grid;min-height:17rem;align-content:space-between;gap:var(--space-5);padding:var(--space-5);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-subtle);transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.tool-card:hover{border-color:var(--color-border-strong);box-shadow:var(--shadow-soft);transform:translateY(-2px)}.tool-card-header{display:flex;align-items:center;justify-content:space-between;gap:var(--space-3)}.tool-mark{width:2.6rem;height:2.6rem;font-size:.82rem}.status-pill{display:inline-flex;min-height:1.8rem;align-items:center;padding:0 var(--space-3);border:1px solid var(--color-border);border-radius:999px;color:var(--color-text-muted);font-family:var(--font-mono);font-size:.75rem;font-weight:700}.tool-card h3{margin-top:var(--space-2);font-size:1.12rem}.text-button{display:inline-flex;min-height:2.5rem;align-items:center;justify-content:center;justify-self:start;padding:0 var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-text);font-weight:800;cursor:pointer;transition:border-color .16s ease,color .16s ease}.text-button:hover{border-color:var(--color-primary);color:var(--color-primary-hover)}.message-box{padding:var(--space-6);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-subtle)}.message-box h2{font-size:1.25rem}.tool-page-heading{display:flex;align-items:center;gap:var(--space-5)}.tool-page-mark{width:4rem;height:4rem;font-size:1rem}.utility-panel{display:grid;gap:var(--space-5);padding:var(--space-6);border:1px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-subtle)}.panel-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--space-4)}.panel-heading h3{margin:var(--space-1) 0 0;font-size:1.3rem;font-weight:760;line-height:1.2}.form-grid{display:grid;gap:var(--space-4)}.form-grid.two-column{grid-template-columns:repeat(2,minmax(0,1fr))}.form-grid.compact-fields{align-items:start}.field-stack{display:grid;gap:var(--space-2);min-width:0;color:var(--color-text-muted);font-family:var(--font-mono);font-size:.86rem;font-weight:700}.field-stack input,.field-stack textarea{width:100%;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-text);box-shadow:var(--shadow-subtle)}.field-stack input::placeholder,.field-stack textarea::placeholder{color:var(--color-text-soft)}.field-stack input{min-height:2.8rem;padding:0 var(--space-4);font-family:var(--font-sans)}.field-stack input[type=file]{min-height:auto;padding:var(--space-3);cursor:pointer}.field-stack input:disabled{color:var(--color-text-soft);cursor:not-allowed}.field-stack textarea{min-height:12rem;padding:var(--space-3) var(--space-4);font-family:var(--font-mono);font-size:.92rem;line-height:1.55;resize:vertical}.button-row{display:flex;flex-wrap:wrap;gap:var(--space-3)}.primary-button,.secondary-button{display:inline-flex;min-height:2.6rem;align-items:center;justify-content:center;padding:0 var(--space-4);border-radius:var(--radius-md);font-weight:750;cursor:pointer;transition:background-color .16s ease,border-color .16s ease,color .16s ease,opacity .16s ease}.primary-button{border:1px solid var(--color-primary);background:var(--color-primary);color:var(--color-primary-contrast)}.primary-button:hover:not(:disabled){border-color:var(--color-primary-hover);background:var(--color-primary-hover)}.secondary-button{border:1px solid var(--color-border);background:var(--color-surface-raised);color:var(--color-text)}.secondary-button:hover:not(:disabled){border-color:var(--color-primary);color:var(--color-primary-hover)}.primary-button:disabled,.secondary-button:disabled{cursor:not-allowed;opacity:.48}.inline-notice{margin:0;padding:var(--space-3) var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-subtle);color:var(--color-text-muted);line-height:1.55}.inline-notice.is-success{border-color:color-mix(in srgb,var(--color-success) 45%,var(--color-border));background:color-mix(in srgb,var(--color-success) 12%,var(--color-surface));color:var(--color-success)}.inline-notice.is-error{border-color:var(--color-danger-border);background:var(--color-danger-surface);color:var(--color-danger-text)}.file-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-3);margin:0}.file-summary div{min-width:0;padding:var(--space-4);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-subtle)}.file-summary dt{color:var(--color-text-soft);font-family:var(--font-mono);font-size:.74rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.file-summary dd{overflow-wrap:anywhere;margin:var(--space-1) 0 0;color:var(--color-text);font-family:var(--font-mono);font-weight:700}.segmented-control{display:flex;flex-wrap:wrap;gap:var(--space-2);margin:0;padding:0;border:0}.segmented-control legend{width:100%;margin-bottom:var(--space-1);color:var(--color-text-muted);font-family:var(--font-mono);font-size:.86rem;font-weight:700}.segmented-control label{display:inline-flex;min-height:2.5rem;align-items:center;gap:var(--space-2);padding:0 var(--space-3);border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);color:var(--color-text);font-weight:750;cursor:pointer}.segmented-control input{accent-color:var(--color-primary)}.helper-text{margin:0;color:var(--color-text-muted)}.helper-text strong{color:var(--color-text)}.decoded-file-preview{display:grid;gap:var(--space-4)}.media-preview-image,.media-preview-player,.media-preview-frame{width:100%;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-surface-raised);box-shadow:var(--shadow-subtle)}.media-preview-image{max-height:28rem;object-fit:contain}.media-preview-player{min-height:3rem}.media-preview-frame{min-height:32rem}@media(max-width:1100px){.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.top-used-label{display:none}.top-used-list{max-width:34vw}}@media(max-width:860px){.app-shell{display:block}.sidebar{display:none}.app-header{grid-template-columns:auto minmax(0,1fr) auto;padding:var(--space-3) var(--space-4)}.mobile-menu-button{display:inline-grid}.mobile-nav{position:sticky;top:var(--header-height);z-index:var(--z-mobile-nav);display:block;max-height:0;overflow:hidden;border-bottom:1px solid transparent;background:var(--color-background);transition:max-height .18s ease,border-color .18s ease}.mobile-nav.is-open{max-height:calc(100svh - var(--header-height));overflow-y:auto;border-color:var(--color-border)}.mobile-nav-stack{display:grid;gap:var(--space-3);padding:var(--space-3) var(--space-4) var(--space-4)}.mobile-nav-panel{padding:0}.mobile-subnav-panel{position:relative;z-index:var(--z-mobile-subnav);display:grid;max-height:0;gap:var(--space-4);overflow:hidden;padding:0 var(--space-3);border:1px solid transparent;border-radius:var(--radius-md);background:var(--color-surface);opacity:0;transform:translateY(-.5rem);transition:max-height .2s ease,opacity .18s ease,padding .18s ease,transform .18s ease,border-color .18s ease}.mobile-subnav-panel.is-open{max-height:72svh;overflow-y:auto;padding:var(--space-4) var(--space-3);border-color:var(--color-border);opacity:1;transform:translateY(0)}.mobile-subnav-panel .nav-submenu{overflow:visible;padding-right:0}.top-used-nav{display:none}.app-main{padding:var(--space-6) var(--space-4)}.dashboard-heading{grid-template-columns:1fr;align-items:start}.form-grid.two-column,.file-summary{grid-template-columns:1fr}}@media(max-width:640px){:root{--header-height: 4.5rem}.header-title h1{font-size:1.1rem}.eyebrow{font-size:.68rem}.theme-toggle{min-width:3.75rem;padding-right:var(--space-2)}.theme-toggle-label{display:none}.dashboard-heading h2,.tool-page-heading h2{font-size:2rem}.catalog-toolbar,.tool-grid{grid-template-columns:1fr}.catalog-toolbar div+div{border-top:1px solid var(--color-border);border-left:0}.tool-page-heading{align-items:flex-start}.tool-page-mark{width:3rem;height:3rem}.utility-panel{padding:var(--space-4)}.panel-heading,.button-row{display:grid}.primary-button,.secondary-button{width:100%}}