:root{--dever-bg-base:#f4f0e6;--dever-bg-card:#fff;--dever-bg-subtle:#ebe6da;--dever-text-main:#2c2926;--dever-text-muted:#6e6862;--dever-border:#ddd7cc;--dever-color-define:#3b5766;--dever-color-experiment:#b85c43;--dever-color-verify:#5c4b40;--dever-color-engrave:#4e6f5a;--dever-color-refine:#6b5b6e;--dever-font-heading:"Noto Serif JP", "Cinzel", serif;--font-serif:"Noto Serif JP", "Cinzel", serif;--dever-font-body:"Inter", "Noto Sans JP", sans-serif;--font-sans:"Inter", "Noto Sans JP", sans-serif;--dever-font-mono:"JetBrains Mono", monospace;--font-mono:"JetBrains Mono", monospace;--dever-radius:16px;--dever-radius-sm:8px;--dever-shadow:0 4px 20px #2c29260d;--dever-divider-accent:#2c292666}[data-theme=dark]{--dever-bg-base:#1e1d1b;--dever-bg-card:#272623;--dever-bg-subtle:#32302c;--dever-text-main:#eae6df;--dever-text-muted:#ada69e;--dever-border:#3e3b37;--dever-divider-accent:#ffffff47;--dever-color-define:#678696;--dever-color-experiment:#d17962;--dever-color-verify:#968b82;--dever-color-engrave:#70947d;--dever-color-refine:#9b899e;--dever-shadow:0 4px 20px #0000004d}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--dever-bg-base);color:var(--dever-text-main);font-family:var(--dever-font-body);-webkit-font-smoothing:antialiased;padding:16px 20px 80px;line-height:1.7;transition:background-color .3s,color .3s}html:has(body.viewport-fit-layout),body.viewport-fit-layout{flex-direction:column;height:100dvh;margin:0;padding:14px 20px 16px;display:flex;overflow:hidden}body.viewport-fit-layout .top-controls{flex-shrink:0;margin:0 auto}body.viewport-fit-layout .container{flex-direction:column;flex:1;justify-content:center;align-items:center;width:100%;min-height:0;display:flex}body.viewport-fit-layout .dever-footer{flex-shrink:0;margin-top:0;padding-top:14px}.container{width:100%;max-width:1040px;margin:0 auto}.glass-panel{background:var(--dever-bg-card);border:1px solid var(--dever-border);border-radius:var(--dever-radius);box-shadow:var(--dever-shadow);transition:all .25s}.top-controls{z-index:100;box-sizing:border-box;background:var(--dever-bg-card);border:1px solid var(--dever-border);-webkit-backdrop-filter:blur(12px);border-radius:30px;justify-content:space-between;align-items:center;width:100%;max-width:1040px;height:54px;margin:0 auto 36px;padding:0 20px;display:flex;position:sticky;top:16px;box-shadow:0 4px 16px #2c29260d}[data-theme=dark] .top-controls{box-shadow:0 4px 16px #00000040}.brand-status{align-items:center;gap:12px;text-decoration:none;display:flex}.header-actions{align-items:center;gap:10px;display:flex}.nav-link-btn{background:var(--dever-bg-subtle);color:var(--dever-text-main);box-sizing:border-box;height:32px;font-size:12.5px;font-weight:600;font-family:var(--dever-font-mono);border:1px solid #0000;border-radius:20px;align-items:center;gap:6px;padding:0 14px;line-height:1;text-decoration:none;transition:all .2s;display:inline-flex}.nav-link-btn:hover{border-color:var(--dever-border);transform:translateY(-1px)}.theme-toggle-btn{background:var(--dever-bg-subtle);color:var(--dever-text-main);box-sizing:border-box;height:32px;font-size:12.5px;font-weight:600;font-family:var(--dever-font-mono);cursor:pointer;border:1px solid #0000;border-radius:20px;align-items:center;gap:6px;padding:0 14px;line-height:1;transition:all .2s;display:inline-flex}.theme-toggle-btn:hover{border-color:var(--dever-border);transform:translateY(-1px)}.dever-footer{border-top:1px solid var(--dever-border);text-align:center;width:100%;max-width:1040px;margin-top:48px;margin-left:auto;margin-right:auto;padding-top:24px}.dever-footer-tagline{font-family:var(--dever-font-heading);color:var(--dever-color-experiment);letter-spacing:.1em;margin-bottom:6px;font-size:15px;font-weight:700;line-height:1.3}.dever-footer-copy{font-family:var(--dever-font-mono);color:var(--dever-text-muted);font-size:11px;line-height:1.4}@media (width<=639px){body{padding:12px 12px 60px}.top-controls{border-radius:25px;height:50px;margin-bottom:20px;padding:0 12px}.header-subtitle,.nav-link-btn span.btn-text{display:none}.nav-link-btn{padding:0 10px}}