:root{--ink: #0D0F14;--paper: #F5F0E8;--bg: #0D0F14;--bg-muted: #1C1F28;--fg: #F5F0E8;--fg-dim: #8B95A3;--input-bg: #EDE8DC;--input-fg: #0D0F14;--tile-bg: #F5F0E8;--tile-fg: #0D0F14;--tile-dim: #6B7280;--accent: #E8522A;--accent-soft: #F08060;--gold: #C9A84C;--success: #5C9E6E;--warning: #C9A84C;--border-subtle: rgba(245,240,232,.08);--border-light: rgba(245,240,232,.15);--border-medium: rgba(245,240,232,.25);--border-ghost: rgba(245,240,232,.3);--border-ghost-hover: rgba(245,240,232,.6);--bar-inactive: rgba(245,240,232,.15);--space-1: 8px;--space-2: 16px;--space-3: 24px;--space-4: 32px;--space-5: 48px;--space-6: 64px;--font-display: "Playfair Display", serif;--font-body: "Crimson Pro", serif;--font-mono: "DM Mono", monospace;--radius-tile: 4px;--radius-input: 2px;--radius-sheet: 12px;--radius-button: 4px}@media (prefers-color-scheme: light){:root{--bg: #FAF9F6;--bg-muted: #F0EDE6;--fg: #1C1F28;--fg-dim: #6B7280;--input-bg: #FFFFFF;--input-fg: #1C1F28;--tile-bg: #0D0F14;--tile-fg: #F5F0E8;--tile-dim: #8B95A3;--border-subtle: rgba(13,15,20,.06);--border-light: rgba(13,15,20,.1);--border-medium: rgba(13,15,20,.15);--border-ghost: rgba(13,15,20,.2);--border-ghost-hover: rgba(13,15,20,.4);--bar-inactive: rgba(13,15,20,.08)}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;background:var(--bg);color:var(--fg);font-family:var(--font-body);font-size:17px;font-weight:400;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100%;display:flex;flex-direction:column}.app-shell{max-width:420px;width:100%;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;position:relative}.display{font-family:var(--font-display);font-size:42px;font-weight:900;line-height:1.1}.heading-1{font-family:var(--font-display);font-size:28px;font-weight:700;line-height:1.2}.heading-2{font-family:var(--font-display);font-size:22px;font-weight:700;line-height:1.3}.label{font-family:var(--font-mono);font-size:11px;font-weight:500;text-transform:uppercase;letter-spacing:1px}.body{font-family:var(--font-body);font-size:17px;font-weight:400}.body-sm{font-family:var(--font-body);font-size:15px;font-weight:300}.chain-word{font-family:var(--font-mono);font-size:18px;font-weight:500}.input-text{font-family:var(--font-mono);font-size:20px;font-weight:400}.btn{display:inline-flex;align-items:center;justify-content:center;height:52px;padding:0 var(--space-3);border:none;border-radius:var(--radius-button);font-family:var(--font-mono);font-size:14px;font-weight:500;text-transform:uppercase;letter-spacing:1.5px;cursor:pointer;transition:transform .1s ease-in-out,background .15s ease;text-decoration:none;white-space:nowrap}.btn:active{transform:scale(.97)}.btn-primary{background:var(--accent);color:var(--paper)}.btn-primary:hover{background:var(--accent-soft)}.btn-primary:disabled{background:var(--fg-dim);opacity:.4;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--fg);border:1px solid var(--border-ghost)}.btn-ghost:hover{border-color:var(--border-ghost-hover)}.btn-full{width:100%}:focus-visible{outline:2px solid var(--accent-soft);outline-offset:2px}::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:2px}@keyframes fadeIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-6px)}40%{transform:translate(6px)}60%{transform:translate(-6px)}80%{transform:translate(6px)}}@keyframes pulse{0%,to{opacity:.4}50%{opacity:.9}}@keyframes slideDown{0%{transform:translateY(-44px);opacity:0}to{transform:translateY(0);opacity:1}}@keyframes slideUp{0%{transform:translateY(0);opacity:1}to{transform:translateY(-44px);opacity:0}}.fade-in{animation:fadeIn .2s ease-out}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}.divider{display:flex;align-items:center;gap:var(--space-2);color:var(--fg-dim);font-family:var(--font-body);font-size:15px}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--border-light)}