@charset "UTF-8";:root{--primary-color: #3b82f6;--primary-hover: #2563eb;--primary-light: #dbeafe;--primary-dark: #1d4ed8;--secondary-color: #64748b;--secondary-hover: #475569;--success-color: #10b981;--success-light: #d1fae5;--warning-color: #f59e0b;--warning-light: #fef3c7;--error-color: #ef4444;--error-light: #fee2e2;--info-color: #0ea5e9;--info-light: #e0f2fe;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #f1f5f9;--card-bg: #ffffff;--card-bg-hover: #f8fafc;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--border-color: #e2e8f0;--border-hover: #cbd5e1;--header-bg: rgba(255, 255, 255, .95);--header-border: #e2e8f0;--spacing-xs: .25rem;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--font-family-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-family-mono: "JetBrains Mono", "Fira Code", Consolas, Monaco, "Andale Mono", monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 8px 10px -6px rgba(0, 0, 0, .1);--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s ease;--z-dropdown: 1000;--z-sticky: 1020;--z-fixed: 1030;--z-modal-backdrop: 1040;--z-modal: 1050;--z-popover: 1060;--z-tooltip: 1070;--z-toast: 1080;--header-height: 64px;--sidebar-width: 260px;--container-max-width: 1200px;--sidebar-bg: #1e293b;--sidebar-text: rgba(255, 255, 255, .7);--sidebar-text-hover: #ffffff;--sidebar-border: rgba(255, 255, 255, .1);--sidebar-item-hover: rgba(255, 255, 255, .1);--sidebar-item-active: var(--primary-color);--auth-gradient-from: #667eea;--auth-gradient-to: #764ba2;--auth-card-bg: #ffffff;--auth-card-shadow: 0 25px 50px -12px rgba(0, 0, 0, .25);--auth-heading: #1a1a1a;--auth-subtext: #666666;--auth-label: #374151;--auth-input-bg: #ffffff;--auth-input-border: #e5e7eb;--auth-input-disabled-bg: #f9fafb;--auth-checkbox-text: #4b5563;--auth-toggle-icon: #9ca3af;--auth-toggle-icon-hover: #6b7280;--auth-footer-text: #6b7280;--input-bg: #ffffff;--input-border: #e2e8f0;--input-focus-border: var(--primary-color);--input-focus-ring: rgba(99, 102, 241, .1);--input-disabled-bg: #f9fafb;--card-shadow: var(--shadow-md);--card-shadow-lg: var(--shadow-lg);--overlay-bg: rgba(0, 0, 0, .5);--modal-bg: #ffffff;--modal-shadow: 0 20px 60px rgba(0, 0, 0, .2);--primary-tint: rgba(99, 102, 241, .1);--success-tint: rgba(34, 197, 94, .1);--warning-tint: rgba(245, 158, 11, .1);--info-tint: rgba(59, 130, 246, .1);--error-tint: rgba(239, 68, 68, .1);--secondary-tint: rgba(107, 114, 128, .1);--icon-primary: #6366f1;--icon-success: #22c55e;--icon-warning: #f59e0b;--icon-info: #3b82f6;--icon-error: #ef4444;--icon-secondary: #6b7280;--badge-success-bg: #dcfce7;--badge-success-text: #166534;--badge-warning-bg: #fef3c7;--badge-warning-text: #92400e;--badge-error-bg: #fef2f2;--badge-error-text: #dc2626;--badge-info-bg: #dbeafe;--badge-info-text: #1e40af;--badge-secondary-bg: #e5e7eb;--badge-secondary-text: #6b7280;--badge-pending-bg: #fef3c7;--badge-pending-text: #92400e;--alert-info-text: #0c4a6e;--alert-success-text: #065f46;--alert-warning-text: #92400e;--alert-error-text: #991b1b;--error-hover: #dc2626;--danger-bg: #dc2626;--danger-hover: #b91c1c;--success-btn-bg: #22c55e;--success-btn-hover: #16a34a;--status-active: #22c55e;--status-inactive: #9ca3af;--toggle-off-bg: #d1d5db;--toggle-knob: #ffffff;--code-bg: #1e293b;--code-text: #e2e8f0;--code-border: rgba(0, 0, 0, .15);--code-inline-bg: rgba(99, 102, 241, .1);--code-inline-text: #6366f1;--focus-ring: rgba(99, 102, 241, .3);--separator-hover: rgba(99, 102, 241, .02);--dashed-border-hover: var(--primary-color);--pending-border: #f59e0b;--link-delete-bg: #fef2f2;--link-delete-text: #dc2626;--link-delete-border: 1px solid rgba(239, 68, 68, .2);--accent-color: #3b82f6;--accent-light: #60a5fa;--accent-tint: rgba(59, 130, 246, .1);--accent-tint-border: rgba(59, 130, 246, .2);--accent-tint-strong: rgba(59, 130, 246, .3);--accent-shadow: 0 10px 30px rgba(59, 130, 246, .3);--accent-shadow-lg: 0 20px 40px rgba(59, 130, 246, .2);--accent-shadow-sm: 0 4px 12px rgba(59, 130, 246, .15);--accent-shadow-scroll: 0 4px 20px rgba(59, 130, 246, .4);--learning-dashed-border: rgba(59, 130, 246, .3);--learning-dashed-bg: linear-gradient(135deg, rgba(59, 130, 246, .1), rgba(96, 165, 250, .05));--btn-spinner-border: rgba(255, 255, 255, .3);--section-alt-bg: rgba(243, 244, 246, .8);--danger-item-hover: rgba(239, 68, 68, .1);--danger-item-color: #ef4444;--dropdown-shadow: 0 8px 30px rgba(0, 0, 0, .15)}[data-theme=dark],.theme-dark{--primary-hover: #60a5fa;--primary-light: rgba(59, 130, 246, .2);--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--card-bg: rgba(30, 41, 59, .5);--card-bg-hover: rgba(30, 41, 59, .8);--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--border-color: rgba(59, 130, 246, .2);--border-hover: rgba(59, 130, 246, .5);--header-bg: rgba(15, 23, 42, .95);--header-border: rgba(59, 130, 246, .2);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 20px rgba(0, 0, 0, .4);--shadow-glow: 0 0 30px rgba(59, 130, 246, .15);--sidebar-bg: #0f172a;--sidebar-text: rgba(203, 213, 225, .7);--sidebar-text-hover: #f1f5f9;--sidebar-border: rgba(59, 130, 246, .15);--sidebar-item-hover: rgba(59, 130, 246, .1);--auth-gradient-from: #1e1b4b;--auth-gradient-to: #312e81;--auth-card-bg: #1e293b;--auth-card-shadow: 0 25px 50px -12px rgba(0, 0, 0, .5);--auth-heading: #f1f5f9;--auth-subtext: #94a3b8;--auth-label: #cbd5e1;--auth-input-bg: #0f172a;--auth-input-border: #334155;--auth-input-disabled-bg: #1e293b;--auth-checkbox-text: #94a3b8;--auth-toggle-icon: #64748b;--auth-toggle-icon-hover: #94a3b8;--auth-footer-text: #64748b;--input-bg: #0f172a;--input-border: #334155;--input-focus-ring: rgba(59, 130, 246, .2);--input-disabled-bg: #1e293b;--card-shadow: var(--shadow-md);--card-shadow-lg: var(--shadow-lg);--overlay-bg: rgba(0, 0, 0, .7);--modal-bg: #1e293b;--modal-shadow: 0 20px 60px rgba(0, 0, 0, .5);--primary-tint: rgba(59, 130, 246, .15);--success-tint: rgba(34, 197, 94, .15);--warning-tint: rgba(245, 158, 11, .15);--info-tint: rgba(59, 130, 246, .15);--error-tint: rgba(239, 68, 68, .15);--secondary-tint: rgba(148, 163, 184, .15);--icon-primary: #818cf8;--icon-success: #4ade80;--icon-warning: #fbbf24;--icon-info: #60a5fa;--icon-error: #f87171;--icon-secondary: #94a3b8;--badge-success-bg: rgba(34, 197, 94, .15);--badge-success-text: #4ade80;--badge-warning-bg: rgba(245, 158, 11, .15);--badge-warning-text: #fbbf24;--badge-error-bg: rgba(239, 68, 68, .15);--badge-error-text: #f87171;--badge-info-bg: rgba(59, 130, 246, .15);--badge-info-text: #60a5fa;--badge-secondary-bg: rgba(148, 163, 184, .15);--badge-secondary-text: #94a3b8;--badge-pending-bg: rgba(245, 158, 11, .15);--badge-pending-text: #fbbf24;--alert-info-text: #7dd3fc;--alert-success-text: #4ade80;--alert-warning-text: #fbbf24;--alert-error-text: #f87171;--success-light: rgba(34, 197, 94, .15);--warning-light: rgba(245, 158, 11, .15);--error-light: rgba(239, 68, 68, .15);--info-light: rgba(14, 165, 233, .15);--error-hover: #ef4444;--danger-hover: #ef4444;--success-btn-hover: #4ade80;--status-active: #4ade80;--status-inactive: #64748b;--toggle-off-bg: #475569;--toggle-knob: #e2e8f0;--code-border: rgba(59, 130, 246, .2);--code-inline-bg: rgba(59, 130, 246, .15);--code-inline-text: #93c5fd;--focus-ring: rgba(59, 130, 246, .4);--separator-hover: rgba(59, 130, 246, .05);--pending-border: #fbbf24;--link-delete-bg: rgba(239, 68, 68, .1);--link-delete-text: #f87171;--link-delete-border: 1px solid rgba(239, 68, 68, .3);--accent-tint: rgba(59, 130, 246, .15);--accent-tint-border: rgba(59, 130, 246, .3);--accent-tint-strong: rgba(59, 130, 246, .4);--accent-shadow: 0 10px 30px rgba(59, 130, 246, .4);--accent-shadow-lg: 0 20px 40px rgba(59, 130, 246, .3);--accent-shadow-sm: 0 4px 12px rgba(59, 130, 246, .2);--accent-shadow-scroll: 0 4px 20px rgba(59, 130, 246, .5);--learning-dashed-border: rgba(59, 130, 246, .4);--learning-dashed-bg: linear-gradient(135deg, rgba(59, 130, 246, .15), rgba(96, 165, 250, .08));--section-alt-bg: rgba(30, 41, 59, .3);--danger-item-hover: rgba(239, 68, 68, .15);--danger-item-color: #f87171;--dropdown-shadow: 0 8px 30px rgba(0, 0, 0, .4)}[data-theme=light],.theme-light{--primary-color: #3b82f6;--primary-hover: #2563eb;--primary-light: #dbeafe;--primary-dark: #1d4ed8;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--bg-tertiary: #f1f5f9;--card-bg: #ffffff;--card-bg-hover: #f8fafc;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--border-color: #e2e8f0;--border-hover: #cbd5e1;--header-bg: rgba(255, 255, 255, .95);--header-border: #e2e8f0;--shadow-glow: 0 4px 20px rgba(0, 0, 0, .08);--sidebar-bg: #1e293b;--sidebar-text: rgba(255, 255, 255, .7);--sidebar-text-hover: #ffffff;--sidebar-border: rgba(255, 255, 255, .1);--sidebar-item-hover: rgba(255, 255, 255, .1);--sidebar-item-active: var(--primary-color);--auth-gradient-from: #667eea;--auth-gradient-to: #764ba2;--auth-card-bg: #ffffff;--auth-card-shadow: 0 25px 50px -12px rgba(0, 0, 0, .25);--auth-heading: #1a1a1a;--auth-subtext: #666666;--auth-label: #374151;--auth-input-bg: #ffffff;--auth-input-border: #e5e7eb;--auth-input-disabled-bg: #f9fafb;--auth-checkbox-text: #4b5563;--auth-toggle-icon: #9ca3af;--auth-toggle-icon-hover: #6b7280;--auth-footer-text: #6b7280;--input-bg: #ffffff;--input-border: #e2e8f0;--input-focus-border: var(--primary-color);--input-focus-ring: rgba(59, 130, 246, .1);--input-disabled-bg: #f9fafb;--card-shadow: var(--shadow-md);--card-shadow-lg: var(--shadow-lg);--overlay-bg: rgba(0, 0, 0, .5);--modal-bg: #ffffff;--modal-shadow: 0 20px 60px rgba(0, 0, 0, .2);--primary-tint: rgba(99, 102, 241, .1);--success-tint: rgba(34, 197, 94, .1);--warning-tint: rgba(245, 158, 11, .1);--info-tint: rgba(59, 130, 246, .1);--error-tint: rgba(239, 68, 68, .1);--secondary-tint: rgba(107, 114, 128, .1);--icon-primary: #6366f1;--icon-success: #22c55e;--icon-warning: #f59e0b;--icon-info: #3b82f6;--icon-error: #ef4444;--icon-secondary: #6b7280;--badge-success-bg: #dcfce7;--badge-success-text: #166534;--badge-warning-bg: #fef3c7;--badge-warning-text: #92400e;--badge-error-bg: #fef2f2;--badge-error-text: #dc2626;--badge-info-bg: #dbeafe;--badge-info-text: #1e40af;--badge-secondary-bg: #e5e7eb;--badge-secondary-text: #6b7280;--badge-pending-bg: #fef3c7;--badge-pending-text: #92400e;--alert-info-text: #0c4a6e;--alert-success-text: #065f46;--alert-warning-text: #92400e;--alert-error-text: #991b1b;--error-hover: #dc2626;--danger-bg: #dc2626;--danger-hover: #b91c1c;--success-btn-bg: #22c55e;--success-btn-hover: #16a34a;--status-active: #22c55e;--status-inactive: #9ca3af;--toggle-off-bg: #d1d5db;--toggle-knob: #ffffff;--code-bg: #1e293b;--code-text: #e2e8f0;--code-border: rgba(0, 0, 0, .15);--code-inline-bg: rgba(99, 102, 241, .1);--code-inline-text: #6366f1;--focus-ring: rgba(59, 130, 246, .3);--separator-hover: rgba(59, 130, 246, .02);--dashed-border-hover: var(--primary-color);--pending-border: #f59e0b;--link-delete-bg: #fef2f2;--link-delete-text: #dc2626;--link-delete-border: 1px solid rgba(239, 68, 68, .2);--accent-color: #2563eb;--accent-light: #1d4ed8;--accent-tint: rgba(59, 130, 246, .1);--accent-tint-border: rgba(59, 130, 246, .2);--accent-tint-strong: rgba(59, 130, 246, .3);--accent-shadow: 0 10px 30px rgba(59, 130, 246, .3);--accent-shadow-lg: 0 20px 40px rgba(59, 130, 246, .2);--accent-shadow-sm: 0 4px 12px rgba(59, 130, 246, .15);--accent-shadow-scroll: 0 4px 20px rgba(59, 130, 246, .4);--learning-dashed-border: rgba(59, 130, 246, .3);--learning-dashed-bg: linear-gradient(135deg, rgba(59, 130, 246, .1), rgba(96, 165, 250, .05));--btn-spinner-border: rgba(255, 255, 255, .3);--section-alt-bg: rgba(243, 244, 246, .8);--danger-item-hover: rgba(239, 68, 68, .1);--danger-item-color: #ef4444;--dropdown-shadow: 0 8px 30px rgba(0, 0, 0, .15)}*,*:before,*:after{box-sizing:border-box}*{margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-family-sans);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--text-primary);background-color:var(--bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color var(--transition-slow),color var(--transition-slow)}img,picture,video,canvas,svg{display:block;max-width:100%}input,textarea,select{font:inherit;color:var(--text-primary);background-color:var(--bg-primary)}button{font:inherit;color:inherit}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}a{color:inherit;text-decoration:none}ul,ol{list-style:none}button{cursor:pointer;background:none;border:none}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}h1,.h1{font-size:clamp(1.75rem,3vw + .5rem,var(--font-size-4xl));font-weight:700;line-height:var(--line-height-tight)}h2,.h2{font-size:clamp(1.5rem,2.5vw + .25rem,var(--font-size-3xl));font-weight:700;line-height:var(--line-height-tight)}h3,.h3{font-size:clamp(1.25rem,2vw + .125rem,var(--font-size-2xl));font-weight:600;line-height:var(--line-height-tight)}h4,.h4{font-size:var(--font-size-xl);font-weight:600;line-height:var(--line-height-tight)}h5,.h5{font-size:var(--font-size-lg);font-weight:600;line-height:var(--line-height-tight)}h6,.h6{font-size:var(--font-size-base);font-weight:600;line-height:var(--line-height-tight)}.lead{font-size:var(--font-size-lg);line-height:var(--line-height-relaxed);color:var(--text-secondary)}.small{font-size:var(--font-size-sm)}.text-muted{color:var(--text-muted)}.link{color:var(--primary-color);transition:color var(--transition-fast)}.link:hover{color:var(--primary-hover)}.link-underline{text-decoration:underline;text-underline-offset:2px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-sm);padding:.625rem 1.25rem;font-size:var(--font-size-sm);font-weight:500;line-height:1;border-radius:var(--radius-md);border:1px solid transparent;cursor:pointer;transition:all var(--transition-fast);white-space:nowrap}.btn:disabled{opacity:.6;cursor:not-allowed}.btn svg{width:1em;height:1em}.btn-sm{padding:.5rem .875rem;font-size:var(--font-size-xs)}.btn-lg{padding:.875rem 1.75rem;font-size:var(--font-size-base)}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-secondary{background:var(--bg-secondary);color:var(--text-primary)}.btn-secondary:hover:not(:disabled){background:var(--bg-tertiary)}.btn-outline{background:transparent;color:var(--primary-color);border-color:var(--primary-color)}.btn-outline:hover:not(:disabled){background:var(--primary-light)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover:not(:disabled){background:var(--bg-secondary);color:var(--text-primary)}.btn-danger{background:var(--error-color);color:#fff}.btn-danger:hover:not(:disabled){background:var(--error-hover)}.btn-icon{padding:.5rem;border-radius:var(--radius-md)}.btn-icon svg{width:1.25rem;height:1.25rem}.form-group{margin-bottom:var(--spacing-lg)}.form-label{display:block;font-size:var(--font-size-sm);font-weight:500;margin-bottom:var(--spacing-xs);color:var(--text-primary)}.form-input,.form-select,.form-textarea{width:100%;padding:.625rem .875rem;font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--text-primary);background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast)}.form-input::placeholder,.form-select::placeholder,.form-textarea::placeholder{color:var(--text-muted)}.form-input:focus,.form-select:focus,.form-textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px var(--input-focus-ring)}.form-input:disabled,.form-select:disabled,.form-textarea:disabled{background:var(--bg-secondary);cursor:not-allowed}.form-input.is-invalid,.form-select.is-invalid,.form-textarea.is-invalid{border-color:var(--error-color)}.form-input.is-invalid:focus,.form-select.is-invalid:focus,.form-textarea.is-invalid:focus{box-shadow:0 0 0 3px var(--error-tint)}.form-textarea{resize:vertical;min-height:100px}.form-hint{font-size:var(--font-size-sm);color:var(--text-muted);margin-top:var(--spacing-xs)}.form-error{font-size:var(--font-size-sm);color:var(--error-color);margin-top:var(--spacing-xs)}.form-checkbox,.form-radio{display:flex;align-items:center;gap:var(--spacing-sm);cursor:pointer}.form-checkbox input,.form-radio input{width:1rem;height:1rem;cursor:pointer}.card{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-lg);overflow:hidden}.card-header{padding:var(--spacing-lg);border-bottom:1px solid var(--border-color)}.card-body{padding:var(--spacing-lg)}.card-footer{padding:var(--spacing-lg);border-top:1px solid var(--border-color);background:var(--bg-secondary)}.card-title{font-size:var(--font-size-lg);font-weight:600;margin-bottom:var(--spacing-xs)}.card-subtitle{font-size:var(--font-size-sm);color:var(--text-secondary)}.badge{display:inline-flex;align-items:center;padding:.25rem .625rem;font-size:var(--font-size-xs);font-weight:500;border-radius:var(--radius-full);line-height:1}.badge-primary{background:var(--primary-light);color:var(--primary-dark)}.badge-secondary{background:var(--bg-secondary);color:var(--text-secondary)}.badge-success{background:var(--badge-success-bg);color:var(--badge-success-text)}.badge-warning{background:var(--badge-warning-bg);color:var(--badge-warning-text)}.badge-error{background:var(--badge-error-bg);color:var(--badge-error-text)}.badge-info{background:var(--badge-info-bg);color:var(--badge-info-text)}.alert{display:flex;align-items:flex-start;gap:var(--spacing-md);padding:var(--spacing-md) 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