:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#f8fbff;--panel:#fff;--ink:#172033;--muted:#697286;--subtle:#9aa6b8;--line:#dfe6f1;--teal:#0f9f9a;--coral:#e85d4f;--indigo:#4258b8;--amber:#f3b43f;--white:#fff}*{box-sizing:border-box}html,body{min-height:100%;color:var(--ink);letter-spacing:0;background:#eaf0f6;margin:0;font-family:Inter,Noto Sans JP,Hiragino Kaku Gothic ProN,Meiryo,sans-serif}button,input{font:inherit}button{cursor:pointer}p,h1,h2{margin:0}.mobile-page{background:#eaf0f6;min-height:100svh}.mobile-app-shell{background:var(--bg);width:min(100%,430px);min-height:100svh;margin:0 auto;position:relative;overflow-x:hidden}.mobile-header{z-index:5;min-height:71px;padding:calc(12px + env(safe-area-inset-top)) 16px 12px;border-bottom:1px solid var(--line);background:var(--panel);align-items:center;gap:10px;display:flex;position:sticky;top:0}.brand-mark{background:var(--ink);width:46px;height:46px;color:var(--white);border-radius:14px;flex:none;place-items:center;display:grid}.brand-text{flex:1;min-width:0}.brand-row{align-items:center;gap:8px;min-width:0;display:flex}.brand-name{color:var(--ink);text-overflow:ellipsis;white-space:nowrap;font-size:22px;font-weight:900;line-height:1.22;overflow:hidden}.env-badge{color:var(--teal);background:#e7f5f4;border-radius:999px;flex:none;padding:3px 7px;font-size:11px;font-weight:900;line-height:1.2}.muted{color:var(--muted);font-size:13px;line-height:19px}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.icon-button{border:1px solid var(--line);background:var(--white);width:38px;height:38px;color:var(--ink);border-radius:8px;flex:none;place-items:center;display:grid}.mobile-scroll{padding:16px 16px calc(98px + env(safe-area-inset-bottom));gap:16px;display:grid}.challenge-band{border:1px solid var(--line);background:#eef8f7;border-radius:8px;gap:14px;padding:18px;display:grid}.challenge-copy{gap:6px;display:grid}.kicker{color:var(--teal);font-size:12px;font-weight:900;line-height:1.3}h1,.profile-top h2{color:var(--ink);font-size:22px;font-weight:900;line-height:29px}.challenge-theme{color:var(--muted);font-size:15px;font-weight:700;line-height:22px}.challenge-stats{flex-wrap:wrap;gap:8px;display:flex}.stat{background:var(--white);max-width:100%;color:var(--ink);text-overflow:ellipsis;white-space:nowrap;border-radius:8px;padding:8px 10px;font-size:13px;font-weight:900;line-height:1.35;overflow:hidden}.section{gap:12px;display:grid}.section-title{min-height:34px;color:var(--ink);justify-content:space-between;align-items:center;gap:12px;margin-top:4px;display:flex}.section-title h2{color:var(--ink);flex:1;font-size:20px;font-weight:900;line-height:26px}.source-label{color:var(--muted);font-size:12px;font-weight:900}.clip-card,.vote-card,.ranking-row,.upload-preview,.profile-top,.metric{border:1px solid var(--line);background:var(--panel);border-radius:8px;overflow:hidden}.poster{min-height:260px;color:var(--white);place-items:center;display:grid;position:relative;overflow:hidden}.poster-compact{min-height:124px}.tone-0{background:var(--teal)}.tone-1{background:var(--indigo)}.tone-2{background:var(--coral)}.poster-circle{opacity:.55;border:2px solid;border-radius:999px;width:150px;height:150px;position:absolute}.tone-0 .poster-circle{color:var(--coral)}.tone-1 .poster-circle{color:var(--amber)}.tone-2 .poster-circle{color:var(--teal)}.play-circle{z-index:1;background:#ffffff29;border:1px solid #ffffff6b;border-radius:999px;place-items:center;width:68px;height:68px;display:grid}.poster-badge{color:var(--white);background:#1720337a;border-radius:999px;align-items:center;gap:5px;padding:5px 8px;font-size:12px;font-weight:900;line-height:1.2;display:flex;position:absolute;bottom:12px;right:12px}.clip-body{gap:9px;padding:14px;display:grid}.clip-copy{gap:4px;display:grid}.clip-body strong,.vote-card strong,.ranking-row strong,.upload-preview strong{color:var(--ink);font-size:17px;font-weight:900;line-height:23px}.meta-row{flex-wrap:wrap;gap:6px;display:flex}.meta-row span{color:var(--muted);background:#f2f6fb;border-radius:999px;padding:5px 8px;font-size:12px;font-weight:900;line-height:1.25;overflow:hidden}.action-row{gap:16px;display:flex}.action-row span{color:var(--muted);align-items:center;gap:5px;font-size:13px;font-weight:900;display:inline-flex}.vote-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}.vote-card{min-width:0;color:var(--ink);text-align:left;gap:8px;padding:0 0 10px;display:grid}.vote-card strong,.vote-card>span{padding:0 10px}.vote-card strong{-webkit-line-clamp:2;-webkit-box-orient:vertical;min-height:40px;font-size:15px;line-height:20px;display:-webkit-box;overflow:hidden}.vote-card>span{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:13px;line-height:19px;overflow:hidden}.vote-card.selected{border-color:var(--teal);box-shadow:inset 0 0 0 2px #0f9f9a47}.ranking-list,.upload-form,.metric-grid{gap:12px;display:grid}.ranking-row{align-items:center;gap:12px;min-height:72px;padding:12px;display:flex}.rank-circle{color:#9a6111;background:#fff4d8;border-radius:999px;flex:none;place-items:center;width:44px;height:44px;font-size:13px;font-weight:900;display:grid}.ranking-body{flex:1;min-width:0}.score{color:var(--ink);flex:none;font-size:15px;font-weight:900}.input-block{gap:7px;display:grid}.input-block span{color:var(--muted);font-size:13px;font-weight:900}.input-block input{border:1px solid var(--line);background:var(--white);width:100%;min-height:44px;color:var(--ink);border-radius:8px;outline:0;padding:0 12px;font-size:15px}.input-block input::placeholder{color:var(--subtle)}.upload-preview{gap:8px;display:grid}.upload-preview-body{gap:4px;padding:0 14px 14px;display:grid}.primary-button{background:var(--ink);min-height:48px;color:var(--white);border:0;border-radius:8px;justify-content:center;align-items:center;gap:8px;font-size:15px;font-weight:900;display:flex}.profile-top{align-items:center;gap:12px;padding:14px;display:flex}.avatar{background:var(--indigo);width:62px;height:62px;color:var(--white);border-radius:18px;flex:none;place-items:center;font-size:18px;font-weight:900;display:grid}.metric{gap:4px;padding:14px;display:grid}.metric p{color:var(--muted);font-size:12px;font-weight:900;line-height:1.35}.metric strong{color:var(--ink);font-size:22px;font-weight:900;line-height:1.25}.tab-bar{right:auto;bottom:calc(12px + env(safe-area-inset-bottom));z-index:20;border:1px solid var(--line);background:var(--panel);border-radius:18px;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;width:min(100% - 24px,406px);padding:7px;display:grid;position:fixed;left:50%;transform:translate(-50%)}.tab{min-width:0;min-height:56px;color:var(--muted);background:0 0;border:0;border-radius:12px;place-items:center;gap:4px;display:grid}.tab.active{color:var(--teal);background:#e7f5f4}.tab span{color:currentColor;font-size:11px;font-weight:900;line-height:1.2}@media (min-width:520px){.mobile-app-shell{box-shadow:0 18px 44px #1c2b4e1f}}