:root{--font: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", "Meiryo", sans-serif;--mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, monospace;--r-xl: 22px;--r-lg: 16px;--r-md: 12px;--r-sm: 9px;--tap: 44px;--gutter: 16px;--topbar-h: 56px;--sidebar: 300px;--safe-t: env(safe-area-inset-top, 0px);--safe-b: env(safe-area-inset-bottom, 0px);--safe-l: env(safe-area-inset-left, 0px);--safe-r: env(safe-area-inset-right, 0px);color-scheme:dark;--ground: #0b1120;--surface: #0f172a;--surface-2: #1e293b;--surface-3: #334155;--line: #1e293b;--line-strong: #334155;--ink: #f8fafc;--ink-2: #cbd5e1;--muted: #94a3b8;--faint: #7c8ba1;--accent: #60a5fa;--accent-strong: #93c5fd;--accent-solid: #2563eb;--accent-solid-ink: #ffffff;--accent-wash: rgba(59, 130, 246, .12);--accent-wash-2: rgba(59, 130, 246, .24);--accent-glow: rgba(59, 130, 246, .4);--brand-grad: linear-gradient(135deg, #2563eb, #4f46e5 50%, #7c3aed);--cyan: #67e8f9;--violet: #a78bfa;--flag: #fbbf24;--flag-wash: rgba(251, 191, 36, .14);--ok: #34d399;--ok-wash: rgba(52, 211, 153, .13);--danger: #f87171;--danger-wash: rgba(248, 113, 113, .12);--mark: rgba(52, 211, 153, .22);--photo-mat: #020617;--shadow-1: 0 1px 2px rgba(0, 0, 0, .35), 0 4px 14px rgba(0, 0, 0, .25);--shadow-2: 0 2px 6px rgba(0, 0, 0, .45), 0 16px 40px rgba(0, 0, 0, .5);--backdrop: rgba(2, 6, 23, .62);--scroll-thumb: #334155;--scrim-strong: rgba(2, 6, 23, .96);--viewfinder: black;--scrim-ink: white;--scrim-btn: rgba(255, 255, 255, .14);--scrim-btn-hover: rgba(255, 255, 255, .24)}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{height:100%;-webkit-text-size-adjust:100%;text-size-adjust:100%}body{min-height:100%;background:var(--ground);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;overflow-wrap:anywhere}#root{min-height:100%}img,svg,video,canvas{display:block;max-width:100%}button,input,textarea,select{font:inherit;color:inherit}button{cursor:pointer}a{color:var(--accent);text-decoration:none}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}::selection{background:var(--accent-wash-2)}*{scrollbar-width:thin;scrollbar-color:var(--scroll-thumb) transparent}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:var(--tap);padding:0 18px;border-radius:var(--r-md);border:1px solid var(--line-strong);background:var(--surface-2);color:var(--ink);font-weight:600;font-size:15px;line-height:1.3;transition:background .15s,border-color .15s,transform .08s,opacity .15s;white-space:nowrap;user-select:none}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.5;cursor:default;transform:none}.btn.primary{background:var(--accent-solid);border-color:var(--accent-solid);color:var(--accent-solid-ink);font-weight:700}.btn.ghost{background:transparent;border-color:transparent;color:var(--ink-2)}.btn.danger{color:var(--danger)}.btn.block{width:100%}.btn.small{min-height:var(--tap);padding:0 12px;font-size:14px;border-radius:var(--r-sm)}.btn.lg{min-height:52px;font-size:16.5px;border-radius:var(--r-lg);padding:0 22px}.icon-btn{display:inline-flex;align-items:center;justify-content:center;flex:none;width:var(--tap);height:var(--tap);border-radius:50%;border:0;background:transparent;color:var(--ink-2);transition:background .15s,color .15s,transform .08s}.icon-btn:active{transform:scale(.94)}.icon-btn:disabled{opacity:.4;cursor:default}.input,.textarea{width:100%;min-height:var(--tap);border:1px solid var(--line-strong);border-radius:var(--r-md);background:var(--ground);padding:10px 14px;font-size:16px;line-height:1.55;transition:border-color .15s,box-shadow .15s}.textarea{resize:none;min-height:88px}.input:focus,.textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-wash-2)}.input::placeholder,.textarea::placeholder{color:var(--faint)}.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:14px 16px}.muted{color:var(--muted)}.pill{display:inline-flex;align-items:center;gap:4px;padding:2px 10px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.6;background:var(--surface-2);color:var(--muted);white-space:nowrap}.pill.ok{background:var(--ok-wash);color:var(--ok);min-height:28px}.spinner{width:18px;height:18px;border-radius:50%;border:2.5px solid currentColor;border-right-color:transparent;animation:spin .8s linear infinite;flex:none;opacity:.85;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.dots{display:inline-flex;gap:4px;align-items:center}.dots i{width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.35;animation:dot 1.2s infinite ease-in-out}.dots i:nth-child(2){animation-delay:.15s}.dots i:nth-child(3){animation-delay:.3s}@keyframes dot{0%,80%,to{opacity:.25;transform:translateY(0)}40%{opacity:.9;transform:translateY(-3px)}}.scrim{position:fixed;inset:0;background:var(--backdrop);z-index:160;animation:fade .18s ease}.sheet{position:fixed;left:0;right:0;bottom:0;z-index:161;background:var(--surface);border-radius:var(--r-xl) var(--r-xl) 0 0;border-top:1px solid var(--line-strong);max-height:calc(var(--app-h, 100dvh) - 40px - var(--safe-t));overflow-y:auto;overscroll-behavior:contain;padding:10px var(--gutter) calc(18px + var(--safe-b));box-shadow:var(--shadow-2);animation:up .22s 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scale(.98)}}.toasts{position:fixed;left:0;right:0;top:calc(var(--app-top, 0px) + var(--topbar-h) + var(--safe-t) + 8px);z-index:300;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none;padding:0 var(--gutter)}.toast{pointer-events:auto;max-width:440px;background:var(--ink);color:var(--ground);padding:10px 16px;border-radius:var(--r-md);font-size:14.5px;font-weight:600;box-shadow:var(--shadow-2);animation:fade .2s ease;display:flex;align-items:baseline;gap:8px}.toast.error{background:var(--danger);color:#1a0505}.toast-mark{flex:none;display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background:#1a0505;color:var(--danger);font-size:12px;font-weight:700;line-height:1;transform:translateY(2px)}.center-screen{min-height:var(--app-h, 100dvh);display:flex;align-items:center;justify-content:center;padding:calc(24px + var(--safe-t)) var(--gutter) calc(24px + var(--safe-b))}.loading-screen{min-height:var(--app-h, 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8px}.section-title:first-child{margin-top:6px}.mark{display:inline-flex;align-items:baseline;justify-content:center;flex:none;background:var(--brand-grad);border:1px solid rgba(255,255,255,.12);box-shadow:0 4px 14px #2563eb4d;position:relative;overflow:hidden;font-weight:900;font-style:italic;letter-spacing:-.04em;line-height:1;padding-top:.62em;user-select:none;font-family:Arial,var(--font)}.mark:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.28),transparent 60%)}.mark>*{position:relative;color:#fff;transform:skew(-6deg)}.mark>b{color:var(--cyan);font-size:1.22em;margin:0 .02em}.brand{display:inline-flex;align-items:center;gap:10px;min-width:0}.brand-txt{display:flex;flex-direction:column;align-items:flex-start;min-width:0;line-height:1.25}.wordmark{font-weight:800;font-size:15.5px;letter-spacing:-.01em;color:var(--ink);white-space:nowrap}.wordmark i{font-style:normal;font-weight:700;color:var(--accent);font-size:.78em;letter-spacing:.06em;text-transform:uppercase;margin-left:2px}.wordmark.lg{font-size:24px}.brand-sub{max-width:100%;font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.brand-sub.typing{color:var(--accent)}.avatar{flex:none;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--surface-3);color:var(--ink);font-weight:700;font-size:15px;user-select:none}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}@media (hover: hover){.btn:hover{background:var(--surface-3)}.btn.primary:hover{filter:brightness(1.1);background:var(--accent-solid)}.btn.ghost:hover{background:var(--surface-2)}.btn.danger:hover{background:var(--danger-wash)}.icon-btn:hover{background:var(--surface-2);color:var(--ink)}.sheet-row:hover{background:var(--surface-3)}}