*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #ffffff;--bg-secondary: #f9fafb;--border-color: #e5e7eb;--border-focus: #111827;--text-primary: #111827;--text-secondary: #4b5563;--text-muted: #6b7280;--accent: #111827;--accent-hover: #374151;--success: #059669;--success-bg: #ecfdf5;--error: #dc2626;--error-bg: #fef2f2;--discord-blue: #5865f2;--discord-blue-hover: #4752c4;--border-radius: 8px;--border-radius-sm: 4px;--transition: .15s ease-in-out;--font-family: "Inter", "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6}.container{max-width:640px;margin:0 auto;padding:40px 20px 60px}.header{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;flex-wrap:wrap;gap:16px;padding-bottom:16px;border-bottom:2px solid var(--border-color)}.header__title{font-size:1.5rem;font-weight:700;color:var(--text-primary)}.user-info{display:flex;align-items:center;gap:10px;padding:4px 12px 4px 4px;border:1px solid var(--border-color);border-radius:40px;background:var(--bg-secondary)}.user-info__avatar{width:28px;height:28px;border-radius:50%;object-fit:cover}.user-info__name{font-size:.875rem;font-weight:600;color:var(--text-primary)}.card{width:100%}.card__body{display:flex;flex-direction:column;gap:24px;margin-bottom:32px}.form-group{display:flex;flex-direction:column;gap:8px}.form-label{font-size:.875rem;font-weight:600;color:var(--text-primary)}.form-label__required{color:var(--error);margin-left:2px}.form-control{width:100%;padding:10px 12px;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);color:var(--text-primary);font-family:var(--font-family);font-size:1rem;transition:all var(--transition);outline:none;resize:vertical}.form-control::placeholder{color:var(--text-muted)}.form-control:focus{border-color:var(--border-focus)}.form-control.is-invalid{border-color:var(--error)}.form-error{font-size:.8125rem;color:var(--error)}.form-error:empty{display:none}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:480px){.form-row{grid-template-columns:1fr}}.toggle-group{display:flex;gap:0;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius-sm);overflow:hidden}.toggle-btn{flex:1;padding:8px 16px;background:none;border:none;color:var(--text-secondary);font-family:var(--font-family);font-size:.875rem;font-weight:500;cursor:pointer;transition:all var(--transition)}.toggle-btn:hover{background:#f3f4f6}.toggle-btn.active{background:var(--accent);color:#fff}.dropzone{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:32px 24px;border:2px dashed var(--border-color);border-radius:var(--border-radius-sm);background:var(--bg-secondary);cursor:pointer;transition:all var(--transition);position:relative}.dropzone:hover,.dropzone.dragover{border-color:var(--border-focus)}.dropzone__text{font-size:.9rem;color:var(--text-primary);text-align:center}.dropzone__browse{font-weight:600;text-decoration:underline}.dropzone__hint{font-size:.75rem;color:var(--text-muted)}.dropzone__input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}.file-list{list-style:none;display:flex;flex-direction:column;gap:8px}.file-item{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 12px;border:1px solid var(--border-color);border-radius:var(--border-radius-sm);background:#fff}.file-item__info{display:flex;align-items:center;gap:10px;min-width:0}.file-item__name{font-size:.875rem;font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-item__size{font-size:.75rem;color:var(--text-muted);flex-shrink:0}.file-item__remove{flex-shrink:0;font-size:.875rem;font-weight:600;color:var(--text-muted);background:none;border:none;cursor:pointer;padding:4px}.file-item__remove:hover{color:var(--error)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border:1px solid transparent;border-radius:var(--border-radius-sm);font-family:var(--font-family);font-size:.9rem;font-weight:600;cursor:pointer;transition:all var(--transition);text-decoration:none;white-space:nowrap}.btn--primary{background:var(--accent);color:#fff}.btn--primary:hover:not(:disabled){background:var(--accent-hover)}.btn--primary:disabled{opacity:.5;cursor:not-allowed}.btn--large{width:100%;padding:14px 24px;font-size:1rem}.btn--discord{background:var(--discord-blue);color:#fff}.btn--discord:hover{background:var(--discord-blue-hover)}.btn--ghost{background:transparent;color:var(--text-muted);border:1px solid var(--border-color)}.btn--ghost:hover{border-color:var(--error);color:var(--error)}.btn--small{padding:4px 10px;font-size:.75rem}.toast{position:fixed;bottom:32px;left:50%;transform:translate(-50%) translateY(20px);padding:12px 24px;border-radius:var(--border-radius-sm);font-size:.9rem;font-weight:600;z-index:1000;opacity:0;visibility:hidden;transition:all .3s ease;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;border:1px solid var(--border-color);background:#fff}.toast.show{transform:translate(-50%) translateY(0);opacity:1;visibility:visible}.toast--success{border-left:4px solid var(--success);color:var(--success)}.toast--error{border-left:4px solid var(--error);color:var(--error)}@media(max-width:640px){.container{padding:24px 16px}}