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var(--line);text-align:left;cursor:pointer;border-radius:18px;flex-direction:column;width:100%;min-height:405px;padding:16px;transition:transform .18s,box-shadow .18s,border-color .18s;display:flex}:is(.sign-card:hover,.sign-card:focus-visible){border-color:var(--teal);box-shadow:var(--shadow);outline:none;transform:translateY(-3px)}.card-top{color:var(--muted);text-transform:uppercase;letter-spacing:.07em;justify-content:space-between;gap:8px;font-size:10px;font-weight:800;display:flex}.card-top b{color:var(--teal)}.card-top b.context{color:var(--amber-text)}.sign-card .sign-image{height:150px;margin:20px 0}.sign-card h3{margin:0 0 14px;font-size:15px;line-height:1.4}.sign-tags{flex-wrap:wrap;gap:5px;margin-top:auto;display:flex}.sign-tags span{background:var(--surface-soft);color:var(--muted);border-radius:6px;padding:5px 7px;font-size:10px}.read-details{color:var(--teal);margin-top:15px;font-size:11px;font-weight:800}.load-more{margin:28px auto;display:block}.empty-state{text-align:center;border:1px dashed var(--line);background:var(--surface-glass);border-radius:20px;padding:50px 20px}.empty-state strong{font:500 28px Georgia,serif}.empty-state p{color:var(--muted);margin:8px 0 20px}.sign-dialog-backdrop{z-index:100;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#081a1fa8;place-items:center;padding:24px;display:grid;position:fixed;inset:0}.sign-dialog{background:var(--cream);border-radius:28px;grid-template-columns:minmax(280px,.85fr) minmax(0,1.15fr);width:min(880px,100%);max-height:min(740px,100vh - 48px);display:grid;position:relative;overflow:auto;box-shadow:0 30px 90px #00000047}.dialog-close{z-index:2;border:1px solid var(--line);background:var(--surface-control);cursor:pointer;border-radius:50%;width:42px;height:42px;font-size:28px;line-height:1;position:absolute;top:15px;right:15px}.dialog-image{background:var(--image-panel);border-radius:28px 0 0 28px;place-items:center;min-height:470px;padding:44px;display:grid}.dialog-image .sign-image{height:330px;margin:0}.dialog-copy{padding:54px 48px 48px}.dialog-copy h2{letter-spacing:-.025em;margin:10px 0 28px;font:500 clamp(26px,4vw,38px)/1.18 Georgia,serif}.verification-badge{text-transform:uppercase;letter-spacing:.05em;border-radius:999px;margin-top:13px;padding:7px 10px;font-size:10px;font-weight:900;display:inline-block}.verification-badge.verified{background:var(--success-soft);color:var(--teal)}.verification-badge.context{background:var(--memory-soft);color:var(--yellow)}.dialog-copy dl{margin:0}.dialog-copy dl div{border-top:1px solid var(--line);grid-template-columns:105px 1fr;gap:12px;padding:11px 0;display:grid}.dialog-copy dt{color:var(--muted);text-transform:uppercase;letter-spacing:.07em;font-size:11px;font-weight:900}.dialog-copy dd{margin:0;font-size:14px}.dialog-copy dd small{color:var(--muted);margin-top:3px;font-size:10px;display:block}.memory-cue{border-left:4px solid var(--yellow);background:var(--memory-soft);border-radius:0 12px 12px 0;margin:24px 0;padding:17px 18px}.memory-cue strong{justify-content:space-between;gap:12px;font-size:13px;display:flex}.memory-cue small{color:var(--muted);font-weight:500}.memory-cue p{color:var(--muted);margin:7px 0 0;font-size:14px;line-height:1.45}.source-button{text-decoration:none;display:inline-block}.bottom-nav{z-index:30;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);background:#142b32f2;border-radius:20px;gap:4px;padding:6px;display:flex;position:fixed;bottom:18px;left:50%;transform:translate(-50%);box-shadow:0 18px 35px #142b3247}.bottom-nav button{color:#b9c5c6;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:15px;grid-template-rows:auto auto;grid-template-columns:22px auto;min-width:128px;padding:10px 14px;display:grid}.bottom-nav button>span{color:#90aaa8;grid-row:1/3;align-self:center}.bottom-nav button strong{font-size:12px}.bottom-nav button small{opacity:.65;margin-top:2px;font-size:9px}.bottom-nav button.active{background:var(--surface-control);color:var(--ink)}.bottom-nav button.active>span{color:var(--teal)}footer{border-top:1px solid var(--line);width:min(1180px,90vw);color:var(--muted);justify-content:space-between;gap:30px;margin:50px auto 30px;padding-top:22px;font-size:11px;line-height:1.5;display:flex}footer p{max-width:680px;margin:0}footer a{color:var(--teal)}@media (max-width:900px){.metric-grid,.grammar-grid{grid-template-columns:1fr 1fr}.mode-grid{grid-template-columns:repeat(2,1fr)}.catalogue-grid{grid-template-columns:repeat(3,1fr)}.lesson-row{grid-template-columns:1fr auto}.lesson-samples{display:none}.filter-bar{grid-template-columns:1fr 1fr}.search-box{grid-column:1/3}.browse-hero{grid-template-columns:1fr;gap:24px}.browse-hero-stats{grid-template-columns:repeat(3,1fr)}.browse-hero-stats span{gap:4px;display:grid}.trust-details{grid-template-columns:1fr;gap:9px}}@media (max-width:680px){.app-shell{padding-bottom:78px}.topbar{height:68px;padding:0 16px}.brand small{display:none}.brand-mark{border-width:4px;width:35px;height:35px;font-size:16px}.header-actions .ghost-button{padding:9px 11px;font-size:11px}.header-actions .reset-button{display:none}.theme-toggle{min-width:40px;padding-inline:10px!important}.theme-label{display:none}.page{width:min(100% - 28px,600px);padding-top:28px}.hero-card{border-radius:22px;grid-template-columns:1fr}.hero-copy{padding:34px 26px}.hero-copy h1{font-size:45px}.hero-visual{min-height:230px}.warning-demo{width:90px;height:80px}.warning-demo:before{width:68px;height:61px;top:12px;left:11px}.warning-demo span{font-size:29px}.order-demo{border-width:10px;width:90px;height:90px;font-size:25px}.metric-grid{grid-template-columns:1fr 1fr;gap:8px}.metric-card{min-height:125px;padding:17px}.metric-card strong{font-size:35px}.today-grid,.grammar-grid{grid-template-columns:1fr}.plan-card,.weak-card{padding:24px}.page-heading h1{font-size:46px}.page-heading p{font-size:16px}.lesson-row{grid-template-columns:1fr;align-items:start}.mode-grid{grid-template-columns:1fr}.mode-card{min-height:145px}.mode-card strong{margin-top:20px}.quiz-card{border-radius:20px}.sign-image{height:210px}.text-options,.image-options{grid-template-columns:1fr}.browse-hero{margin-bottom:24px}.browse-hero h1{font-size:50px}.browse-hero p{font-size:16px}.browse-hero-stats{grid-template-columns:1fr 1fr 1fr}.browse-hero-stats span{padding:10px 4px;font-size:8px}.browse-hero-stats strong{font-size:22px}.trust-panel summary{grid-template-columns:32px 1fr;padding:12px}.trust-panel summary small{line-height:1.3}.trust-details{padding:0 14px 15px 55px}.filter-bar{grid-template-columns:1fr;padding:9px;top:76px}.search-box{grid-column:auto}.filter-bar select:nth-of-type(2){display:none}.toggle{min-height:40px}.catalogue-grid{grid-template-columns:1fr 1fr;gap:8px}.sign-card{min-height:330px;padding:12px}.sign-card .sign-image{height:120px}.sign-card h3{font-size:13px}.sign-dialog-backdrop{place-items:end center;padding:10px}.sign-dialog{border-radius:22px;grid-template-columns:1fr;max-height:calc(100vh - 20px)}.dialog-image{border-radius:22px 22px 0 0;min-height:240px;padding:24px}.dialog-image .sign-image{height:210px}.dialog-copy{padding:30px 24px 28px}.dialog-copy h2{padding-right:22px}.dialog-close{position:fixed;top:20px;right:20px}.bottom-nav{border-radius:17px;justify-content:stretch;width:calc(100% - 16px);bottom:8px}.bottom-nav button{text-align:center;flex:1;min-width:0;padding:9px 3px;display:block}.bottom-nav button>span{margin-bottom:4px;font-size:11px;display:block}.bottom-nav button strong{font-size:10px}.bottom-nav button small{display:none}footer{padding-bottom:20px;display:block}footer p+p{margin-top:8px}}@media print{.topbar,.bottom-nav,footer{display:none!important}.app-shell{padding:0}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}