.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #06b6d4, #0891b2);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #06b6d4);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.stats-cards{display:flex;justify-content:center;gap:24px;mbargin-bottom:32px;flex-wrap:wrap}.stat-card{background:white;border-radius:60px;padding:16px 28px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200)}.stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #cffafe, #e0f2fe);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#06b6d4;font-size:1.3rem}.stat-info{text-align:left}.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.7rem;color:var(--gray-500)}.mode-tabs{display:flex;gap:16px;margin-bottom:24px;justify-content:center;flex-wrap:wrap}.mode-tab{background:transparent;border:none;padding:14px 28px;cursor:pointer;transition:all 0.3s;border-radius:20px;text-align:center;min-width:140px}.mode-tab i{font-size:1.3rem;color:var(--gray-400);margin-bottom:8px;display:block}.mode-tab span{display:block;font-weight:600;color:var(--gray-600);margin-bottom:4px}.mode-tab small{font-size:0.65rem;color:var(--gray-400)}.mode-tab.active{background:linear-gradient(135deg, #06b6d4, #0891b2);box-shadow:0 8px 25px rgba(6,182,212,0.3)}.mode-tab.active i,.mode-tab.active span,.mode-tab.active small{color:white}.input-section{background:linear-gradient(135deg, #fff, #fafafc);border-radius:24px;overflow:hidden;border:1px solid var(--gray-200);margin-bottom:24px}.section-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200)}.header-title{display:flex;align-items:center;gap:12px;font-weight:600;color:var(--gray-700)}.badge-count{background:#06b6d4;color:white;padding:2px 10px;border-radius:30px;font-size:0.7rem}.header-actions{display:flex;gap:8px}.icon-btn-sm{background:transparent;border:none;padding:6px 10px;border-radius:30px;cursor:pointer;transition:all 0.2s;color:var(--gray-500)}.icon-btn-sm:hover{background:var(--gray-100);color:#06b6d4}.split-textarea{width:100%;min-height:200px;padding:20px;font-family:'Fira Code',monospace;font-size:0.85rem;line-height:1.6;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0}.split-textarea:focus{outline:none}.options-panel{margin-bottom:24px}.options-card{background:var(--gray-50);border-radius:20px;padding:20px;border:1px solid var(--gray-200)}.options-card h4{font-size:0.85rem;margin-bottom:16px;color:var(--gray-700);display:flex;align-items:center;gap:8px}.options-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap}.options-row label{font-size:0.8rem;font-weight:500;color:var(--gray-600)}.input-field{padding:8px 16px;border:1px solid var(--gray-300);border-radius:30px;width:150px}.checkbox-label{display:flex;align-items:center;gap:6px;cursor:pointer;font-size:0.8rem}.checkbox-label input{width:16px;height:16px;cursor:pointer}.quick-delimiters{margin-top:16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}.quick-delimiters span{font-size:0.75rem;color:var(--gray-500)}.quick-delimiter{background:white;border:1px solid var(--gray-300);padding:4px 14px;border-radius:30px;font-size:0.7rem;cursor:pointer;transition:all 0.2s}.quick-delimiter:hover{background:#06b6d4;border-color:#06b6d4;color:white}.action-bar{display:flex;justify-content:center;gap:16px;margin-bottom:24px;flex-wrap:wrap}.split-btn{background:linear-gradient(135deg, #06b6d4, #0891b2);padding:12px 32px;border-radius:50px}.btn-outline{background:transparent;border:1px solid var(--gray-300);padding:10px 24px;border-radius:50px;cursor:pointer;transition:all 0.2s}.btn-outline:hover{background:var(--gray-100);border-color:#06b6d4;color:#06b6d4}.output-section{background:linear-gradient(135deg, #fff, #fafafc);border-radius:24px;overflow:hidden;border:1px solid var(--gray-200);margin-bottom:24px}.segments-list{max-height:500px;overflow-y:auto}.segment-item{border-bottom:1px solid var(--gray-200);animation:fadeIn 0.3s ease}.segment-header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:var(--gray-50);cursor:pointer;transition:background 0.2s}.segment-header:hover{background:var(--gray-100)}.segment-title{display:flex;align-items:center;gap:12px;font-weight:500}.segment-number{background:#06b6d4;color:white;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:0.75rem}.segment-length{font-size:0.7rem;color:var(--gray-500)}.segment-actions{display:flex;gap:8px}.segment-action{background:transparent;border:none;padding:4px 8px;border-radius:20px;cursor:pointer;color:var(--gray-500);font-size:0.7rem}.segment-action:hover{background:var(--gray-200);color:#06b6d4}.segment-content{padding:16px 20px;font-family:'Fira Code',monospace;font-size:0.8rem;line-height:1.6;background:#1a1a2e;color:#e0e0e0;display:none;white-space:pre-wrap;word-break:break-all}.segment-content.show{display:block}.info-section{margin-top:20px}.divider{display:flex;align-items:center;gap:12px;margin-bottom:16px}.divider span{font-size:0.85rem;font-weight:500;color:var(--gray-600)}.divider::after{content:'';flex:1;height:1px;background:var(--gray-200)}.info-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;padding:16px;background:var(--gray-50);border-radius:20px}.info-item{display:flex;align-items:center;gap:8px;font-size:0.8rem;color:var(--gray-600)}.info-item i{color:#10b981}@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.info-grid{grid-template-columns:repeat(2, 1fr)}.mode-tab{min-width:auto;padding:10px 16px}.options-row{flex-direction:column;align-items:flex-start}}@media (max-width:480px){.stats-cards{gap:12px}.stat-card{padding:12px 20px}.stat-value{font-size:1.2rem}.info-grid{grid-template-columns:1fr}.action-bar{flex-direction:column}}