:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--color-bg:#f7f7f5;--color-surface:#fff;--color-text:#1c1c1e;--color-muted:#6b6b70;--color-primary:#2563eb;--color-primary-contrast:#fff;--color-success:#16a34a;--color-danger:#dc2626;--color-border:#e2e2e4;--radius:14px;--tap-min:44px;--font-sans:"Segoe UI", Tahoma, "Noto Sans Arabic", system-ui, -apple-system, sans-serif}*{box-sizing:border-box}html{background:var(--color-bg);direction:rtl;font-size:16px}body{font-family:var(--font-sans);color:var(--color-text);background:var(--color-bg);-webkit-tap-highlight-color:transparent;min-height:100vh;margin:0}h1,h2,h3{margin:0 0 .5em;line-height:1.3}p{margin:0 0 .75em;line-height:1.6}button,input,textarea{font-family:inherit;font-size:1rem}button{cursor:pointer;min-height:var(--tap-min);min-width:var(--tap-min);background:var(--color-primary);color:var(--color-primary-contrast);touch-action:manipulation;border:1px solid #0000;border-radius:10px;padding:.6em 1.2em}button:disabled{opacity:.5;cursor:not-allowed}button.secondary{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border)}button.link{color:var(--color-primary);background:0 0;border:none;min-width:auto;padding:.4em .2em}a{color:var(--color-primary)}.app-shell{max-width:640px;margin:0 auto;padding:0 16px 32px}.app-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;padding:14px 0;display:flex}.app-header__identity{align-items:center;gap:10px;min-width:0;display:flex}.app-header__name{white-space:nowrap;text-overflow:ellipsis;font-weight:600;overflow:hidden}.app-nav{flex-wrap:wrap;gap:8px;margin-bottom:16px;display:flex}.card-surface{background:var(--color-surface);border-radius:var(--radius);border:1px solid var(--color-border);padding:16px}.pinpad{flex-direction:column;align-items:center;gap:20px;display:flex}.pinpad__dots{gap:14px;display:flex}.pinpad__dot{border:2px solid var(--color-primary);background:0 0;border-radius:50%;width:16px;height:16px}.pinpad__dot--filled{background:var(--color-primary)}.pinpad__grid{grid-template-columns:repeat(3,1fr);gap:10px;width:100%;max-width:300px;display:grid}.pinpad__key{background:var(--color-surface);min-height:56px;color:var(--color-text);border:1px solid var(--color-border);font-size:1.4rem}.userpicker__grid{grid-template-columns:repeat(3,1fr);gap:12px;display:grid}.userpicker__tile{background:var(--color-surface);min-height:84px;color:var(--color-text);border:1px solid var(--color-border);flex-direction:column;justify-content:center;align-items:center;gap:6px;font-size:1.1rem;display:flex}.userpicker__tile--admin{grid-column:span 3}.groups-grid{grid-template-columns:repeat(2,1fr);gap:12px;display:grid}@media (width>=420px){.groups-grid{grid-template-columns:repeat(3,1fr)}}.group-tile{background:var(--color-surface);border:1px solid var(--color-border);min-height:96px;color:var(--color-text);flex-direction:column;justify-content:center;align-items:center;gap:6px;display:flex}.group-tile__badge{color:var(--color-muted);font-size:.95rem}.card-list{flex-direction:column;gap:20px;display:flex}.card-item{flex-direction:column;gap:10px;display:flex}.flip-card{perspective:1200px;min-height:160px}.flip-card__inner{width:100%;min-height:160px;transform-style:preserve-3d;cursor:pointer;transition:transform .5s;position:relative}.flip-card__inner--flipped{transform:rotateY(180deg)}.flip-card__face{backface-visibility:hidden;border-radius:var(--radius);border:1px solid var(--color-border);background:var(--color-surface);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:8px;padding:20px;display:flex;position:absolute;inset:0}.flip-card__face--back{transform:rotateY(180deg)}.flip-card__english{direction:ltr;font-size:1.4rem;font-weight:600}.flip-card__primary{font-size:1.5rem;font-weight:700}.flip-card__alternatives{color:var(--color-muted);flex-direction:column;gap:4px;font-size:.9rem;display:flex}.flip-card__hint{color:var(--color-muted);font-size:.8rem}.card-audio{width:100%}.card-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.done-toggle{min-height:var(--tap-min);background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text);align-items:center;gap:8px;padding:0 14px;display:flex}.done-toggle--on{background:var(--color-success);color:#fff;border-color:var(--color-success)}.difficulty{align-items:center;gap:8px;display:flex}.difficulty__dot{border:2px solid var(--color-primary);background:0 0;border-radius:50%;width:28px;min-width:28px;height:28px;min-height:28px;padding:0}.difficulty__dot--filled{background:var(--color-primary)}.suggestion-form{flex-direction:column;gap:10px;display:flex}.suggestion-form textarea{border:1px solid var(--color-border);resize:vertical;border-radius:10px;min-height:90px;padding:10px}.avatar{object-fit:cover;background:var(--color-border);border-radius:50%;flex-shrink:0}.admin-table{border-collapse:collapse;width:100%}.admin-table th,.admin-table td{text-align:start;border-bottom:1px solid var(--color-border);padding:8px 6px;font-size:.9rem}.admin-list-item{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);flex-direction:column;gap:6px;margin-bottom:10px;padding:12px;display:flex}.admin-list-item__meta{color:var(--color-muted);font-size:.85rem}.admin-list-item--seen{opacity:.6}.toast-stack{pointer-events:none;z-index:1000;flex-direction:column;align-items:center;gap:8px;display:flex;position:fixed;bottom:16px;left:0;right:0}.toast{background:var(--color-text);color:#fff;text-align:center;border-radius:999px;max-width:90vw;padding:10px 18px;font-size:.9rem;box-shadow:0 4px 12px #0003}.muted{color:var(--color-muted)}.stack{flex-direction:column;gap:12px;display:flex}.row{align-items:center;gap:10px;display:flex}.center-page{flex-direction:column;justify-content:center;align-items:center;gap:20px;min-height:70vh;padding:16px;display:flex}