:root{--bg:#fff7f4;--surface:#fff;--border:#f0e1dc;--text:#3d2c2e;--muted:#8a7577;--accent:#e8466a;--accent-soft:#ffe3ea;--danger:#c62f2f;--radius:14px;--shadow:0 6px 24px #783c4614;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;font-family:Zen Maru Gothic,Hiragino Maru Gothic ProN,BIZ UDPGothic,Meiryo,sans-serif;line-height:1.6}*{box-sizing:border-box}body{background:radial-gradient(circle at 10% 0%, #ffe6ec 0, transparent 40%), radial-gradient(circle at 90% 10%, #fff1d6 0, transparent 35%), var(--bg);min-height:100vh;margin:0}button,input,select,textarea{font:inherit;color:inherit}h1,h2,p{margin:0}.app{max-width:1180px;margin:0 auto;padding:24px 20px 40px}.app-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:24px;display:flex}.account{border:1px solid var(--border);background:var(--surface);border-radius:999px;align-items:center;gap:8px;padding:6px 12px 6px 6px;font-size:.88rem;display:flex}.account .avatar{width:28px;height:28px}.account-name{font-weight:700}.account .link-button{padding:0;font-size:.7rem}.brand{align-items:center;gap:14px;display:flex}.brand-mark{width:52px;height:52px;box-shadow:var(--shadow);border-radius:12px;flex:none;display:block}.brand h1{letter-spacing:.04em;font-size:1.5rem}.brand p{color:var(--muted);font-size:.9rem}.layout{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);align-items:start;gap:24px;display:grid}.form{flex-direction:column;gap:16px;display:flex}.step,.preview-inner,.center-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px 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var(--accent-soft)}.textarea{resize:vertical;min-height:110px}.message-meta{justify-content:flex-end;margin-top:-4px;display:flex}.counter{color:var(--muted);font-size:.8rem}.counter.over{color:var(--danger);font-weight:700}.phrases{flex-wrap:wrap;gap:8px;display:flex}.phrase{cursor:pointer;text-align:left;background:#fff6f8;border:1px dashed #e7c9cf;border-radius:999px;padding:5px 12px;font-size:.82rem}.phrase:hover{background:var(--accent-soft)}.member-picker{flex-direction:column;gap:10px;display:flex}.member-grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:8px;max-height:340px;padding:2px;display:grid;overflow-y:auto}.member{border:1.5px solid var(--border);cursor:pointer;text-align:left;background:#fff;border-radius:12px;align-items:center;gap:10px;padding:8px 10px;transition:border-color .15s,background .15s;display:flex;position:relative}.member:hover:not(:disabled){border-color:#f3b2c0}.member.selected{border-color:var(--accent);background:var(--accent-soft)}.member:disabled{opacity:.5;cursor:not-allowed}.avatar{object-fit:cover;background:#f4e7e4;border-radius:50%;flex:none;width:36px;height:36px}.avatar.fallback{color:var(--accent);place-items:center;font-weight:700;display:grid}.member-text{flex-direction:column;min-width:0;display:flex}.member-name{text-overflow:ellipsis;white-space:nowrap;font-size:.92rem;font-weight:700;overflow:hidden}.member-sub{color:var(--muted);text-overflow:ellipsis;white-space:nowrap;font-size:.75rem;overflow:hidden}.check{background:var(--accent);color:#fff;border-radius:50%;place-items:center;width:22px;height:22px;font-size:.75rem;font-weight:700;display:grid;position:absolute;top:-6px;right:-6px}.template-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.template{cursor:pointer;border:3px solid #0000;border-radius:14px;flex-direction:column;align-items:center;gap:2px;padding:14px 8px;font-weight:700;transition:transform .15s;display:flex}.template:hover{transform:translateY(-2px)}.template.selected{border-color:currentColor;box-shadow:0 4px 14px #0000001f}.template-emoji{font-size:1.6rem}.template-title{font-size:.88rem}.checkbox{cursor:pointer;align-items:center;gap:8px;font-size:.92rem;display:flex}.checkbox input{width:18px;height:18px;accent-color:var(--accent)}.button{border:1px solid var(--border);cursor:pointer;background:#fff;border-radius:999px;padding:10px 18px;font-weight:700}a.button{text-align:center;text-decoration:none;display:inline-block}.button:hover:not(:disabled){background:#fff3f5}.button.primary{color:#fff;background:linear-gradient(135deg,#ff7a93,#e8466a);border-color:#0000;box-shadow:0 6px 16px #e8466a4d}.button.primary:hover:not(:disabled){filter:brightness(1.05);background:linear-gradient(135deg,#ff7a93,#e8466a)}.button:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.button.send{padding:14px;font-size:1.05rem}.link-button{color:var(--muted);cursor:pointer;background:0 0;border:none;font-size:.82rem;text-decoration:underline}p .link-button{margin-left:6px;padding:0}.link-button:disabled{cursor:default;opacity:.6}.failed-list{text-align:left;flex-direction:column;gap:8px;width:100%;margin:0;padding:0;list-style:none;display:flex}.failed-list li{background:#fdecec;border-radius:10px;flex-direction:column;padding:8px 12px;font-size:.88rem;display:flex}.failed-list span{color:var(--danger);font-size:.8rem}.muted{color:var(--muted)}.small{font-size:.8rem}.center{text-align:center}.alert{color:var(--danger);background:#fdecec;border-radius:10px;padding:10px 12px;font-size:.9rem}.alert.small{padding:6px 10px;font-size:.8rem}.center-note{text-align:center;color:var(--muted);padding:40px 0}.center-box{text-align:center;flex-direction:column;gap:14px;max-width:420px;margin:40px auto;display:flex}.login h2{font-size:1.15rem}.dialog-backdrop{z-index:10;background:#3d2c2e73;place-items:center;padding:16px;animation:.15s ease-out fade;display:grid;position:fixed;inset:0}.dialog{background:#fff;border-radius:18px;flex-direction:column;gap:16px;width:min(440px,100%);padding:24px;animation:.2s ease-out pop;display:flex;box-shadow:0 20px 50px #0003}.dialog h2{font-size:1.15rem}.summary{grid-template-columns:auto 1fr;gap:6px 16px;margin:0;font-size:.92rem;display:grid}.summary dt{color:var(--muted)}.summary dd{overflow-wrap:anywhere;margin:0;font-weight:700}.dialog-actions{justify-content:flex-end;gap:10px;display:flex}.sent{text-align:center;flex-direction:column;align-items:center;gap:12px;display:flex}.sent-mark{font-size:3rem;animation:.6s ease-out bounce}@keyframes fade{0%{opacity:0}}@keyframes pop{0%{opacity:0;transform:scale(.96)}}@keyframes bounce{0%{transform:scale(.4)}60%{transform:scale(1.15)}}@media (width<=860px){.layout{grid-template-columns:minmax(0,1fr)}.preview{position:static}}@media (width<=480px){.app{padding:16px 12px 32px}.template-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.member-grid{grid-template-columns:minmax(0,1fr)}}