.container{max-width:1400px;margin:0 auto;padding:2.5rem 1.25rem}.header{text-align:center;margin-bottom:3rem;padding-bottom:2rem;border-bottom:2px solid var(--border-color);position:relative}.header:after{content:"";position:absolute;bottom:-2px;left:50%;transform:translateX(-50%);width:100px;height:3px;background:linear-gradient(90deg,var(--primary-blue),var(--secondary-purple));border-radius:var(--radius)}.header h1{font-size:clamp(2rem,5vw,2.5rem);font-weight:800;background:linear-gradient(135deg,var(--primary-blue) 0,var(--secondary-purple) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;letter-spacing:-.02em;margin-bottom:.75rem}.header p{color:var(--text-secondary);font-size:1.125rem;font-weight:400;max-width:600px;margin:0 auto}.card{background:var(--card-background);padding:2rem;border-radius:var(--radius-lg);margin-bottom:2rem;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.05);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all var(--transition-normal);position:relative;overflow:hidden}.card:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--primary-blue),var(--secondary-purple));opacity:0;transition:opacity var(--transition-normal)}.card:hover:before{opacity:1}.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl)}.card h2{font-size:1.5rem;font-weight:700;margin-bottom:1.5rem;color:var(--primary-blue);display:flex;align-items:center;gap:.75rem}.card h2:before{content:"";width:4px;height:1.5rem;background:linear-gradient(to bottom,var(--primary-blue),var(--secondary-purple));border-radius:var(--radius)}.toggle-buttons{display:flex;gap:.5rem;margin-top:1.5rem;padding:4px;background:var(--gray-800);border-radius:var(--radius-lg);border:1px solid var(--border-color)}.toggle-buttons button{padding:.75rem 1.5rem;border-radius:var(--radius-md);background:transparent;color:var(--text-secondary);border:none;font-weight:500;cursor:pointer;transition:all var(--transition-fast);font-size:.875rem;white-space:nowrap}.toggle-buttons button:hover:not(.active){background:var(--hover-background);color:var(--text-primary)}.toggle-buttons button.active{background:linear-gradient(135deg,var(--primary-blue),var(--secondary-purple));color:white;font-weight:700;box-shadow:0 4px 15px rgba(59,130,246,.4),0 2px 5px rgba(0,0,0,.2);transform:translateY(-1px)}.summary{background:var(--card-background);padding:2rem;border-radius:var(--radius-lg);margin:2rem 0;color:var(--text-primary);display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem;border:1px solid rgba(255,255,255,.05);box-shadow:var(--shadow-md)}.summary-item{text-align:center;padding:1rem;background:rgba(255,255,255,.02);border-radius:var(--radius-md);border:1px solid rgba(255,255,255,.05);transition:all var(--transition-normal)}.summary-item:hover{background:rgba(255,255,255,.05);transform:translateY(-2px)}.summary-item p{margin:0 0 .5rem;font-size:.875rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;font-weight:500}.summary-item strong{color:var(--primary-blue);font-size:1.25rem}.error-alert{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);color:var(--error-red);padding:1.25rem 1.5rem;border-radius:var(--radius-md);margin:1.5rem 0;text-align:center;font-weight:500;box-shadow:var(--shadow);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;gap:.75rem}.error-alert:before{content:"⚠️";font-size:1.25rem}.loading{margin-top:2rem;text-align:center;color:var(--text-primary);font-size:1.1rem;display:flex;align-items:center;justify-content:center;gap:.75rem;padding:2rem}.loading:before{content:"";width:20px;height:20px;border-top:2px solid var(--gray-600);border:2px solid var(--gray-600);border-top-color:var(--primary-blue);border-radius:50%;animation:spin 1s linear infinite}.preview-wrapper{margin-top:2rem;animation:fadeIn .5s ease-out}.excel-import{margin-top:1.5rem;text-align:center;padding:2rem;background:var(--gray-800);border-radius:var(--radius-lg);border:2px dashed var(--border-color);transition:all var(--transition-normal)}.excel-import:hover{border-color:var(--primary-blue);background:rgba(59,130,246,.05)}.excel-import.drag-active{border-color:var(--primary-blue);background:rgba(59,130,246,.1);transform:scale(1.02)}.file-input-wrapper{position:relative;display:inline-block}.excel-import input[type=file]{position:absolute;width:100%;height:100%;opacity:0;cursor:pointer}.file-input-button{background:linear-gradient(135deg,var(--primary-blue) 0,var(--secondary-purple) 100%);color:white;padding:1.25rem 2.5rem;border:none;border-radius:var(--radius-xl);font-size:1.125rem;font-weight:700;cursor:pointer;transition:all var(--transition-normal);box-shadow:var(--shadow-lg),inset 0 1px 0 rgba(255,255,255,.2);text-transform:uppercase;letter-spacing:.1em;display:inline-flex;align-items:center;gap:.75rem;position:relative;overflow:hidden;min-width:200px;justify-content:center}.file-input-button:before{content:"📁";font-size:1.5rem;filter:drop-shadow(0 2px 4px rgba(0,0,0,.3))}.file-input-button:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.1),transparent 50%);opacity:0;transition:opacity var(--transition-normal)}.file-input-button:hover{transform:translateY(-4px) scale(1.02);box-shadow:0 10px 30px rgba(59,130,246,.4),0 4px 15px rgba(0,0,0,.3),inset 0 1px 0 rgba(255,255,255,.3)}.file-input-button:hover:after{opacity:1}.file-input-button:active{transform:translateY(-2px) scale(1.01);box-shadow:0 5px 15px rgba(59,130,246,.3),0 2px 8px rgba(0,0,0,.2),inset 0 1px 0 rgba(255,255,255,.2)}.file-drop-text{margin-top:1rem;color:var(--text-secondary);font-size:.875rem;font-weight:500}@media (max-width:768px){.summary{grid-template-columns:1fr}.toggle-buttons{flex-direction:column}.card,.excel-import{padding:1.5rem}}.data-preview{background:rgba(30,41,59,.7);box-shadow:0 15px 35px rgba(0,0,0,.35)}.preview-header h3{font-size:1.35rem;font-weight:700;gap:.5rem}.preview-header h3:before{content:"📊";font-size:1.15rem}.export-button:active:not(:disabled){transform:translateY(0) scale(1)}.preview-summary{margin-top:1.75rem}.summary-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.summary-item{background:rgba(15,23,42,.6);border:1px solid rgba(255,255,255,.08);border-left:4px solid #3b82f6;padding:1.25rem;border-radius:12px;transition:all .25s ease}.summary-item:hover{transform:translateY(-3px);box-shadow:0 10px 25px rgba(0,0,0,.3);border-left-color:#8b5cf6}.summary-item strong{font-size:.75rem;margin-bottom:.5rem;letter-spacing:.05em}.summary-item span{font-size:1.25rem;font-weight:700}.data-preview{background:rgba(30,41,59,.75);border-radius:16px;padding:2rem;box-shadow:0 20px 40px rgba(0,0,0,.4);color:#f1f5f9;border:1px solid rgba(255,255,255,.08);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);margin-bottom:2rem;animation:fadeIn .4s ease-out}.preview-header{margin-bottom:1.75rem;border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:1.25rem}.preview-header .header-title{display:flex;justify-content:space-between;align-items:center;color:#f1f5f9;flex-wrap:wrap;gap:1.25rem}.preview-header h3{margin:0;font-size:1.4rem;font-weight:800;color:#f8fafc;display:flex;align-items:center;gap:.625rem;letter-spacing:-.01em}.preview-header h3:before{content:"👤";font-size:1.25rem}.buyer-info{gap:1rem;background:rgba(15,23,42,.8);padding:.625rem 1.25rem;border-radius:12px;border:1px solid rgba(255,255,255,.1);box-shadow:inset 0 1px 3px rgba(0,0,0,.3);flex-wrap:wrap}.buyer-info,.buyer-info p{display:flex;align-items:center}.buyer-info p{margin:0;color:#94a3b8;font-size:.84rem;font-weight:600;gap:.375rem;text-transform:uppercase;letter-spacing:.04em}.buyer-info strong{color:#60a5fa;font-weight:700;font-size:.9375rem;text-transform:none}.export-button{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#ffffff;border:none;padding:.75rem 1.35rem;border-radius:10px;font-weight:700;font-size:.84rem;cursor:pointer;transition:all .25s ease;box-shadow:0 4px 14px rgba(59,130,246,.35);text-transform:uppercase;letter-spacing:.05em;display:inline-flex;align-items:center;gap:.5rem;justify-content:center;outline:none}.export-button:hover:not(:disabled){transform:translateY(-2px) scale(1.02);box-shadow:0 8px 20px rgba(59,130,246,.45)}.export-button:disabled{opacity:.5;cursor:not-allowed}.preview-table-wrapper{overflow-x:auto;margin-bottom:1.75rem;border-radius:12px;border:1px solid rgba(255,255,255,.08);background:rgba(15,23,42,.6);box-shadow:0 4px 15px rgba(0,0,0,.2)}.preview-table{width:100%;border-collapse:collapse;font-size:.875rem;background:transparent}.preview-table td,.preview-table th{padding:.875rem 1rem;border:1px solid rgba(255,255,255,.07);text-align:left;vertical-align:middle;color:#cbd5e1;white-space:nowrap}.preview-table th{background:linear-gradient(180deg,#1e293b,#0f172a);font-weight:700;color:#f8fafc;text-transform:uppercase;letter-spacing:.05em;font-size:.8125rem;padding:.95rem 1.15rem;border-bottom:2px solid rgba(59,130,246,.4);position:sticky;top:0;z-index:5;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.preview-table tbody tr{transition:background-color .15s ease}.preview-table tbody tr:hover{background:rgba(59,130,246,.08)!important}.preview-table tbody tr:nth-child(2n){background:rgba(255,255,255,.02)}.preview-summary{margin-top:2rem;color:#f1f5f9}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:1.25rem;margin-top:1rem}.summary-item{background:linear-gradient(135deg,rgba(30,41,59,.9),rgba(15,23,42,.9));border:1px solid rgba(255,255,255,.1);padding:1.25rem 1.35rem;border-radius:14px;color:#f1f5f9;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;box-shadow:0 6px 20px rgba(0,0,0,.25);display:flex;flex-direction:column;justify-content:space-between}.summary-item:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#3b82f6,#8b5cf6,#10b981)}.summary-item:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(0,0,0,.4),0 0 20px rgba(59,130,246,.15);border-color:rgba(96,165,250,.3)}.summary-item strong{font-size:.72rem;font-weight:700;color:#94a3b8;margin-bottom:.625rem;text-transform:uppercase;letter-spacing:.08em;display:block}.summary-item span{display:block;font-size:1.45rem;font-weight:800;color:#60a5fa;letter-spacing:-.02em;background:linear-gradient(135deg,#60a5fa,#a78bfa);-webkit-background-clip:text;background-clip:text;color:transparent}.summary-item:nth-child(5) span{background:linear-gradient(135deg,#f59e0b,#fbbf24);-webkit-background-clip:text;background-clip:text;color:transparent}.summary-item:nth-child(6){border-color:rgba(16,185,129,.3)}.summary-item:nth-child(6) span{background:linear-gradient(135deg,#34d399,#10b981);-webkit-background-clip:text;background-clip:text;color:transparent}.pagination{display:flex;justify-content:center;align-items:center;gap:.75rem;margin-top:1.5rem}.pagination button{padding:.625rem 1.125rem;border:1px solid rgba(255,255,255,.1);background:rgba(30,41,59,.8);color:#f1f5f9;border-radius:8px;cursor:pointer;font-weight:600;font-size:.8125rem;transition:all .2s ease}.pagination button:hover:not(:disabled){border-color:#3b82f6;background:rgba(59,130,246,.15);transform:translateY(-1px)}.pagination button:disabled{opacity:.4;cursor:not-allowed}.pagination-info{color:#94a3b8;font-size:.8125rem;font-weight:600}