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12px;font-weight:700}button{font:inherit;cursor:pointer}input,textarea,select{font:inherit;color:inherit}.app-shell{flex-direction:column;min-height:100vh;display:flex}.app-header{background:var(--bg);justify-content:space-between;align-items:center;gap:16px;width:100%;max-width:520px;margin:0 auto;padding:36px 22px 30px;display:flex}.brand{color:var(--text-h);letter-spacing:.2px;font-size:26px;font-weight:800;text-decoration:none}.brand-accent{color:var(--text-h)}.header-actions{align-items:center;gap:8px;min-width:0;display:flex}.app-main{width:100%;max-width:520px;padding:8px 22px calc(96px + env(safe-area-inset-bottom));flex:1;margin:0 auto}.app-main-secondary{padding-top:22px}.app-nav-bottom{z-index:10;background:var(--bg);border-top:1px solid var(--border);width:100%;max-width:520px;padding:14px 0 calc(20px + 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