:root{--bg: #ffffff;--card: #ffffff;--ink: #1a1a1a;--muted: #8a8a8a;--accent: #b83f45;--line: #ededed}*{box-sizing:border-box}html{overflow-x:hidden;overscroll-behavior:none;touch-action:pan-y}body{margin:0;width:100%;max-width:100%;overflow-x:hidden;overscroll-behavior-x:none;touch-action:pan-y;-webkit-overflow-scrolling:touch;background:var(--bg);color:var(--ink);font:16px/1.4 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.shell{max-width:550px;margin:0 auto;width:100%;padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right);background:var(--card)}.app-header{padding:calc(24px + env(safe-area-inset-top)) 20px 8px;text-align:center}.app-header-navigation{margin-bottom:8px;text-align:left;font-size:14px}.app-header-navigation a{color:var(--accent);text-decoration:none}.app-header-navigation a:hover{text-decoration:underline}.app-footer-brand{display:inline-flex;align-items:center;gap:5px}.app-footer-logo{border-radius:50%;box-shadow:0 1px 2px #00000026;vertical-align:middle}.app-header .title{margin:0;font-size:40px;font-weight:200;color:var(--accent)}.app-header .subtitle{margin:4px 0 0;color:var(--muted);font-size:13px}.app-footer{padding:12px 16px calc(40px + env(safe-area-inset-bottom));border-top:1px solid var(--line);text-align:center;color:var(--muted);font-size:12px}.app-footer a{color:var(--accent);text-decoration:none}.app-footer a:hover{text-decoration:underline}.install-banner{position:relative;margin:10px 0 4px;padding:12px 32px 12px 14px;background:#f3ead9;border:1px solid var(--line);border-radius:8px;text-align:left;color:var(--ink)}.install-title{margin:0 0 6px;font-size:13px;font-weight:600;color:var(--accent)}.install-steps{margin:0;padding-left:18px;font-size:12px;line-height:1.6;color:var(--ink)}.install-close{position:absolute;top:6px;right:8px;border:none;background:none;color:var(--muted);font-size:20px;line-height:1;cursor:pointer;padding:0 4px}.install-close:hover{color:var(--accent)}.centered{display:flex;align-items:center;justify-content:center;min-height:80vh;color:var(--muted)}