@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Outfit:wght@400;500;600;700;800&display=swap";
:root{--bg-primary:#0a0a0f;--bg-secondary:#111118;--bg-tertiary:#1a1a24;--bg-elevated:#22222e;--bg-glass:#ffffff0a;--bg-glass-hover:#ffffff12;--bg-glass-strong:#ffffff1a;--accent-primary:#8b5cf6;--accent-secondary:#a78bfa;--accent-tertiary:#c4b5fd;--accent-glow:#8b5cf640;--accent-gradient:linear-gradient(135deg, #8b5cf6, #6d28d9, #4c1d95);--accent-gradient-hover:linear-gradient(135deg, #a78bfa, #7c3aed, #5b21b6);--accent-gradient-soft:linear-gradient(135deg, #8b5cf626, #6d28d914);--accent-alt:#06b6d4;--accent-alt-soft:#06b6d426;--text-primary:#f1f0f5;--text-secondary:#a3a0b5;--text-tertiary:#6b6880;--text-inverse:#0a0a0f;--border-subtle:#ffffff0f;--border-default:#ffffff1a;--border-strong:#ffffff29;--border-accent:#8b5cf666;--success:#22c55e;--success-soft:#22c55e1f;--warning:#f59e0b;--warning-soft:#f59e0b1f;--error:#ef4444;--error-soft:#ef44441f;--info:#3b82f6;--info-soft:#3b82f61f;--shadow-sm:0 1px 3px #0000004d;--shadow-md:0 4px 12px #0006;--shadow-lg:0 8px 32px #00000080;--shadow-xl:0 16px 48px #0009;--shadow-glow:0 0 40px #8b5cf626;--shadow-glow-strong:0 0 60px #8b5cf640;--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4rem;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1);--transition-spring:.5s cubic-bezier(.34, 1.56, .64, 1);--font-display:"Outfit", sans-serif;--font-body:"Inter", sans-serif;--sidebar-width:260px;--sidebar-collapsed:72px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-body);background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}a{color:var(--accent-secondary);transition:color 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70%);pointer-events:none;border-radius:50%;width:500px;height:500px;animation:10s ease-in-out infinite reverse float;position:absolute;bottom:-30%;left:-15%}@keyframes float{0%,to{transform:translate(0)scale(1)}50%{transform:translate(30px,-20px)scale(1.05)}}.auth-card{width:100%;max-width:440px;padding:var(--space-2xl);z-index:1;position:relative}.auth-logo{text-align:center;margin-bottom:var(--space-2xl)}.auth-logo h1{font-family:var(--font-display);margin-bottom:var(--space-xs);font-size:2rem;font-weight:800}.auth-logo p{color:var(--text-secondary);font-size:.9375rem}.auth-form{gap:var(--space-lg);flex-direction:column;display:flex}.auth-footer{text-align:center;margin-top:var(--space-xl);color:var(--text-secondary);font-size:.875rem}.auth-footer a{font-weight:600}.admin-layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background:var(--bg-secondary);border-right:1px solid var(--border-subtle);z-index:100;transition:transform var(--transition-base);flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-header{padding:var(--space-lg) var(--space-xl);border-bottom:1px solid var(--border-subtle)}.sidebar-logo{font-family:var(--font-display);font-size:1.375rem;font-weight:800}.sidebar-badge{text-transform:uppercase;letter-spacing:.08em;border-radius:var(--radius-full);background:var(--accent-gradient-soft);color:var(--accent-secondary);margin-left:var(--space-sm);vertical-align:middle;border:1px solid #8b5cf633;padding:2px 8px;font-size:.625rem;font-weight:700;display:inline-block}.sidebar-nav{padding:var(--space-md) var(--space-sm);flex-direction:column;flex:1;gap:2px;display:flex;overflow-y:auto}.sidebar-section-label{text-transform:uppercase;letter-spacing:.08em;color:var(--text-tertiary);padding:var(--space-md) var(--space-md) var(--space-xs);font-size:.6875rem;font-weight:700}.sidebar-link{align-items:center;gap:var(--space-md);padding:.625rem var(--space-md);border-radius:var(--radius-md);color:var(--text-secondary);transition:all var(--transition-fast);font-size:.9375rem;font-weight:500;text-decoration:none;display:flex}.sidebar-link:hover{background:var(--bg-glass);color:var(--text-primary)}.sidebar-link.active{background:var(--accent-gradient-soft);color:var(--accent-secondary);border:1px solid #8b5cf626}.sidebar-link .icon{text-align:center;width:20px;font-size:1.125rem}.sidebar-footer{padding:var(--space-md) var(--space-sm);border-top:1px solid var(--border-subtle)}.sidebar-user{align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);display:flex}.sidebar-user-avatar{border-radius:var(--radius-full);background:var(--accent-gradient);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:.875rem;font-weight:700;display:flex}.sidebar-user-info{flex:1;min-width:0}.sidebar-user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.875rem;font-weight:600;overflow:hidden}.sidebar-user-role{color:var(--text-tertiary);font-size:.75rem}.admin-main{margin-left:var(--sidebar-width);padding:var(--space-2xl);flex:1;min-height:100vh}.page-header{margin-bottom:var(--space-2xl);justify-content:space-between;align-items:center;gap:var(--space-lg);flex-wrap:wrap;display:flex}.page-header-left h1{margin-bottom:var(--space-xs);font-size:1.75rem}.page-header-left p{color:var(--text-secondary);font-size:.9375rem}.stats-grid{gap:var(--space-lg);margin-bottom:var(--space-2xl);grid-template-columns:repeat(auto-fit,minmax(240px,1fr));display:grid}.stat-card{padding:var(--space-xl);position:relative;overflow:hidden}.stat-card:before{content:"";background:var(--accent-gradient-soft);opacity:.5;border-radius:0 0 0 100%;width:100px;height:100px;position:absolute;top:0;right:0}.stat-card .stat-icon{margin-bottom:var(--space-md);z-index:1;font-size:1.5rem;position:relative}.stat-card .stat-value{font-family:var(--font-display);margin-bottom:var(--space-xs);z-index:1;font-size:2rem;font-weight:800;position:relative}.stat-card .stat-label{color:var(--text-secondary);z-index:1;font-size:.875rem;position:relative}.table-container{border-radius:var(--radius-lg);border:1px solid var(--border-subtle);background:var(--bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);overflow-x:auto}.table{border-collapse:collapse;width:100%;font-size:.9375rem}.table thead th{text-align:left;padding:var(--space-md) var(--space-lg);text-transform:uppercase;letter-spacing:.05em;color:var(--text-tertiary);border-bottom:1px solid var(--border-subtle);white-space:nowrap;font-size:.8125rem;font-weight:600}.table tbody td{padding:var(--space-md) var(--space-lg);border-bottom:1px solid var(--border-subtle);vertical-align:middle}.table tbody tr{transition:background var(--transition-fast)}.table tbody tr:hover{background:var(--bg-glass-hover)}.table tbody tr:last-child td{border-bottom:none}.table-thumbnail{border-radius:var(--radius-sm);object-fit:cover;background:var(--bg-tertiary);width:48px;height:64px}.table-actions{gap:var(--space-xs);display:flex}.badge{border-radius:var(--radius-full);letter-spacing:.02em;align-items:center;padding:.1875rem .625rem;font-size:.75rem;font-weight:600;display:inline-flex}.badge-success{background:var(--success-soft);color:var(--success)}.badge-warning{background:var(--warning-soft);color:var(--warning)}.badge-error{background:var(--error-soft);color:var(--error)}.badge-info{background:var(--info-soft);color:var(--info)}.badge-accent{background:var(--accent-gradient-soft);color:var(--accent-secondary)}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:1000;padding:var(--space-xl);animation:fadeIn var(--transition-fast) ease-out;background:#0009;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal{background:var(--bg-secondary);border:1px solid var(--border-default);border-radius:var(--radius-xl);width:100%;max-width:520px;max-height:90vh;box-shadow:var(--shadow-xl);animation:slideUp var(--transition-base) ease-out;overflow-y:auto}.modal-header{padding:var(--space-xl);border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;display:flex}.modal-header h3{font-size:1.125rem}.modal-body{padding:var(--space-xl)}.modal-footer{justify-content:flex-end;align-items:center;gap:var(--space-md);padding:var(--space-lg) var(--space-xl);border-top:1px solid var(--border-subtle);display:flex}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}.file-upload{border:2px dashed var(--border-default);border-radius:var(--radius-lg);padding:var(--space-2xl);text-align:center;transition:all var(--transition-base);cursor:pointer;position:relative}.file-upload:hover,.file-upload.dragging{border-color:var(--accent-primary);background:var(--accent-gradient-soft)}.file-upload .upload-icon{margin-bottom:var(--space-md);font-size:2.5rem}.file-upload .upload-text{color:var(--text-secondary);font-size:.9375rem}.file-upload .upload-text strong{color:var(--accent-secondary)}.file-upload .upload-hint{color:var(--text-tertiary);margin-top:var(--space-sm);font-size:.8125rem}.file-upload input[type=file]{opacity:0;cursor:pointer;position:absolute;inset:0}.file-preview{align-items:center;gap:var(--space-md);padding:var(--space-md);background:var(--bg-glass);border:1px solid var(--border-subtle);border-radius:var(--radius-md);margin-top:var(--space-md);display:flex}.file-preview-image{object-fit:cover;border-radius:var(--radius-sm);background:var(--bg-tertiary);width:60px;height:80px}.file-preview-info{flex:1}.file-preview-name{margin-bottom:2px;font-size:.875rem;font-weight:600}.file-preview-size{color:var(--text-tertiary);font-size:.8125rem}.biblioteca-layout{background:var(--bg-primary);min-height:100vh}.biblioteca-header{padding:var(--space-lg) var(--space-2xl);border-bottom:1px solid var(--border-subtle);background:var(--bg-secondary);z-index:50;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.biblioteca-header-logo{font-family:var(--font-display);font-size:1.25rem;font-weight:800}.biblioteca-header-right{align-items:center;gap:var(--space-lg);display:flex}.biblioteca-header-user{color:var(--text-secondary);font-size:.9375rem}.biblioteca-content{padding:var(--space-2xl);max-width:1200px;margin:0 auto}.ebook-grid{gap:var(--space-xl);grid-template-columns:repeat(auto-fill,minmax(220px,1fr));display:grid}.ebook-card{border-radius:var(--radius-lg);transition:all var(--transition-base);cursor:default;overflow:hidden}.ebook-card:hover{box-shadow:var(--shadow-lg), var(--shadow-glow);border-color:var(--border-accent);transform:translateY(-4px)}.ebook-card-cover{aspect-ratio:3/4;object-fit:cover;background:var(--bg-tertiary);width:100%;display:block}.ebook-card-body{padding:var(--space-lg)}.ebook-card-title{font-family:var(--font-display);margin-bottom:var(--space-xs);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:1rem;font-weight:700;line-height:1.3;display:-webkit-box;overflow:hidden}.ebook-card-desc{color:var(--text-secondary);margin-bottom:var(--space-md);-webkit-line-clamp:2;-webkit-box-orient:vertical;font-size:.8125rem;line-height:1.5;display:-webkit-box;overflow:hidden}.ebook-card-footer{justify-content:space-between;align-items:center;gap:var(--space-sm);display:flex}.ebook-card-price{font-family:var(--font-display);color:var(--accent-secondary);font-size:1.125rem;font-weight:700}.empty-state{text-align:center;padding:var(--space-3xl) var(--space-xl)}.empty-state .empty-icon{margin-bottom:var(--space-lg);opacity:.6;font-size:4rem}.empty-state h3{margin-bottom:var(--space-sm);font-size:1.25rem}.empty-state p{color:var(--text-secondary);max-width:400px;margin:0 auto}.toast-container{top:var(--space-xl);right:var(--space-xl);z-index:9999;gap:var(--space-sm);flex-direction:column;display:flex;position:fixed}.toast{align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-lg);border-radius:var(--radius-md);background:var(--bg-elevated);border:1px solid var(--border-default);box-shadow:var(--shadow-lg);animation:slideInRight var(--transition-base) ease-out;min-width:300px;max-width:440px;display:flex}.toast-success{border-left:3px solid var(--success)}.toast-error{border-left:3px solid var(--error)}.toast-warning{border-left:3px solid var(--warning)}.toast-info{border-left:3px solid var(--info)}.toast-message{flex:1;font-size:.875rem}.toast-close{color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;padding:0;font-size:1.25rem;line-height:1}@keyframes slideInRight{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.spinner{border:2px solid var(--border-default);border-top-color:var(--accent-primary);border-radius:50%;width:20px;height:20px;animation:.6s linear infinite spin}.spinner-lg{border-width:3px;width:40px;height:40px}@keyframes spin{to{transform:rotate(360deg)}}.loading-page{justify-content:center;align-items:center;gap:var(--space-lg);flex-direction:column;min-height:60vh;display:flex}.loading-page p{color:var(--text-secondary)}.search-bar{max-width:360px;position:relative}.search-bar .search-icon{left:var(--space-md);color:var(--text-tertiary);pointer-events:none;position:absolute;top:50%;transform:translateY(-50%)}.search-bar input{padding-left:2.75rem}.checkbox-list{gap:var(--space-sm);max-height:300px;padding-right:var(--space-sm);flex-direction:column;display:flex;overflow-y:auto}.checkbox-item{align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);transition:background var(--transition-fast);cursor:pointer;display:flex}.checkbox-item:hover{background:var(--bg-glass)}.checkbox-item input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent-primary);cursor:pointer}.checkbox-item label{cursor:pointer;flex:1;font-size:.9375rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.gap-xl{gap:var(--space-xl)}.w-full{width:100%}.text-center{text-align:center}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mt-xl{margin-top:var(--space-xl)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.mb-xl{margin-bottom:var(--space-xl)}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:fadeInUp var(--transition-slow) ease-out both}@media (max-width:768px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.admin-main{padding:var(--space-lg);margin-left:0}.page-header{flex-direction:column;align-items:flex-start}.stats-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}.ebook-grid{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.auth-card{padding:var(--space-xl)}.biblioteca-content{padding:var(--space-lg)}h1{font-size:1.75rem}h2{font-size:1.375rem}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-default);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--border-strong)}