*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f1117;--bg2: #181c27;--bg3: #1e2333;--border: #2e3347;--text: #e8eaf0;--text2: #9ba3bf;--accent: #6c8fff;--accent-hover: #849fff;--accent2: #a78bfa;--success: #34d399;--error: #f87171;--warning: #fbbf24;--radius: 10px;--radius-sm: 6px;--shadow: 0 4px 24px rgba(0,0,0,.4);font-size:15px}body{background:var(--bg);color:var(--text);font-family:Segoe UI,Hiragino Sans,Meiryo,system-ui,sans-serif;line-height:1.6;min-height:100vh}.app{display:flex;flex-direction:column;min-height:100vh}.app-header{background:linear-gradient(135deg,#1a1f35,#0f1117);border-bottom:1px solid var(--border);padding:16px 24px;position:sticky;top:0;z-index:100}.header-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;gap:16px}.app-title{font-size:1.5rem;font-weight:700;color:var(--text);display:flex;align-items:center;gap:10px}.title-icon{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;background:linear-gradient(135deg,var(--accent),var(--accent2));border-radius:10px;font-size:1.2rem;color:#fff}.app-subtitle{color:var(--text2);font-size:.85rem;margin-left:auto}.app-body{display:flex;flex:1;max-width:1400px;margin:0 auto;width:100%;gap:0}.sidebar{width:220px;flex-shrink:0;border-right:1px solid var(--border);padding:20px 0;position:sticky;top:73px;height:calc(100vh - 73px);overflow-y:auto;background:var(--bg2)}.sidebar-category{margin-bottom:8px}.sidebar-cat-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:var(--text2);padding:8px 16px 4px}.sidebar-item{display:flex;flex-direction:column;gap:2px;width:100%;padding:10px 16px;background:none;border:none;border-left:3px solid transparent;text-align:left;cursor:pointer;transition:all .15s;color:var(--text)}.sidebar-item:hover{background:#6c8fff14;border-left-color:var(--border)}.sidebar-item.active{background:#6c8fff26;border-left-color:var(--accent)}.sidebar-item.wip{opacity:.38;cursor:not-allowed}.sidebar-item.wip:hover{background:transparent;border-left-color:transparent}.sidebar-item-label{font-size:.9rem;font-weight:600}.sidebar-item-desc{font-size:.75rem;color:var(--text2)}.main-content{flex:1;padding:28px 32px;min-width:0}.mode-header{margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border)}.mode-title{font-size:1.4rem;font-weight:700;color:var(--text)}.mode-desc{font-size:.85rem;color:var(--text2);margin-top:4px}.calc-form{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:20px}.form-preview{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px;text-align:center;margin-bottom:20px;min-height:60px;display:flex;align-items:center;justify-content:center;font-size:1.2rem}.form-fields{display:flex;flex-direction:column;gap:14px;margin-bottom:18px}.field-group{display:flex;flex-direction:column;gap:6px}.field-group--inline{flex-direction:row;align-items:center;gap:12px}.field-label{font-size:.85rem;color:var(--text2);font-weight:500;white-space:nowrap;min-width:140px}.field-input{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text);padding:8px 12px;font-size:.95rem;outline:none;transition:border-color .15s;width:100%}.field-input--sm{max-width:120px;width:120px}.field-input--wide{max-width:100%}.field-input:focus{border-color:var(--accent)}.field-input::placeholder{color:var(--text2);opacity:.6}.field-hint{font-size:.75rem;color:var(--text2);margin-top:2px}.field-select{background:var(--bg3);border:1px solid 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.15s;flex-shrink:0;white-space:nowrap}.guide-btn:hover{background:#6c8fff26}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:500;display:flex;align-items:center;justify-content:center;padding:20px}.modal-box{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);width:100%;max-width:600px;max-height:85vh;display:flex;flex-direction:column;overflow:hidden}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border);flex-shrink:0}.modal-title{font-size:1.05rem;font-weight:700;color:var(--text)}.modal-close{width:28px;height:28px;border:none;background:none;color:var(--text2);font-size:1.1rem;cursor:pointer;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all .15s}.modal-close:hover{background:#f8717126;color:var(--error)}.modal-body{overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:0}.guide-section{padding:16px 0;border-bottom:1px solid var(--border)}.guide-section:last-child{border-bottom:none}.guide-heading{font-size:.9rem;font-weight:700;color:var(--accent);margin-bottom:10px;letter-spacing:.02em}.guide-text{font-size:.87rem;color:var(--text2);margin-top:8px;line-height:1.7}.guide-note{font-size:.82rem;color:var(--text2);margin-top:10px;margin-bottom:6px;padding-left:10px;border-left:2px solid var(--border)}.guide-list{list-style:none;display:flex;flex-direction:column;gap:8px;margin:10px 0}.guide-list li{display:flex;align-items:center;gap:10px;font-size:.87rem;color:var(--text)}.guide-badge{display:inline-block;padding:2px 10px;border-radius:12px;font-size:.8rem;font-weight:700;white-space:nowrap;min-width:60px;text-align:center}.guide-badge.pos{background:#34d39926;color:var(--success);border:1px solid rgba(52,211,153,.3)}.guide-badge.zero{background:#fbbf2426;color:var(--warning);border:1px solid rgba(251,191,36,.3)}.guide-badge.neg{background:#f8717126;color:var(--error);border:1px solid rgba(248,113,113,.3)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text2)}