:root{--color-primary:#93624a;--color-background:#f5f0e6;--color-surface:#f5f0e6;--color-border:#e5e4e7;--color-text:#6b6375;--color-heading:#08060d;--color-accent:#ab7d2f;--color-theorie:#c8a184;--color-theorie-text:#3d2818;--color-ueben:#a8c9b0;--color-ueben-text:#1f3a28;--color-pruefung:#d9bf8c;--color-pruefung-text:#3d2c10;--font-heading:"Nunito", system-ui, "Segoe UI", Roboto, sans-serif;--font-body:"Nunito Sans", system-ui, "Segoe UI", Roboto, sans-serif;--radius:20px;--radius-card:18px;--shadow:#00000014 0 24px 48px -12px, #0000000a 0 8px 16px -4px;--shadow-sm:#00000012 0 6px 16px -4px, #0000000a 0 2px 6px -1px}*,:before,:after{box-sizing:border-box}html,body{background:var(--color-background);color:var(--color-text);font-family:var(--font-body);letter-spacing:.18px;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;font-size:16px;line-height:1.45}h1,h2,h3{font-family:var(--font-heading)}#root{min-height:100dvh}.app{max-width:480px;padding:calc(40px + env(safe-area-inset-top)) 16px calc(32px + env(safe-area-inset-bottom));margin:0 auto}.home-header{text-align:center;margin-bottom:28px}.home-header h1{color:var(--color-primary);letter-spacing:-.01em;margin:0;font-size:2.25rem;font-weight:700}.home-header p{color:var(--color-text);margin:4px 0 0;font-size:1.05rem}.tiles{flex-direction:column;gap:14px;display:flex}.tile{border-radius:var(--radius);min-height:104px;box-shadow:var(--shadow-sm);align-items:center;gap:18px;padding:20px 22px;text-decoration:none;transition:transform .2s,box-shadow .2s,filter .2s;display:flex}.tile:hover,.tile:focus-visible{filter:brightness(1.06);box-shadow:var(--shadow)}.tile:active{transform:scale(.98)}.tile:focus-visible{outline-offset:-6px;outline:3px solid}.tile--theorie{background:var(--color-theorie);color:var(--color-theorie-text)}.tile--ueben{background:var(--color-ueben);color:var(--color-ueben-text)}.tile--pruefung{background:var(--color-pruefung);color:var(--color-pruefung-text)}.tile-icon{flex-shrink:0;place-items:center;display:grid}.tile-icon svg{width:32px;height:32px}.tile-title{font-family:var(--font-heading);font-size:1.25rem;font-weight:700;display:block}.tile-text{opacity:.85;margin-top:2px;display:block}.page-bar{align-items:center;gap:14px;margin-bottom:28px;display:flex}.back-button{background:var(--color-surface);width:44px;height:44px;box-shadow:var(--shadow-sm);color:var(--color-primary);border-radius:50%;flex-shrink:0;place-items:center;transition:background .2s,transform .15s;display:grid}.back-button:hover,.back-button:focus-visible{background:var(--color-border);outline:none}.back-button:active{transform:scale(.94)}.back-button svg{width:22px;height:22px}.page-bar h1{color:var(--color-primary);margin:0;font-size:1.75rem;font-weight:700}.page-placeholder{border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);color:var(--color-text);margin:0;padding:16px 18px;font-size:1.05rem}