@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";
:root,[data-theme=dark]{--color-bg-primary:#0f1219;--color-bg-secondary:#161b26;--color-bg-card:#1c2333;--color-bg-card-hover:#232b3e;--color-bg-input:#1a2030;--color-bg-modal:#0f1219d9;--color-surface-glass:#1c233399;--color-surface-glass-border:#ffffff0f;--color-text-primary:#e8eaf0;--color-text-secondary:#9ba3b5;--color-text-muted:#6b7280;--color-text-inverse:#0f1219;--color-accent-primary:#d4a853;--color-accent-primary-hover:#e0b964;--color-accent-primary-glow:#d4a85326;--color-accent-secondary:#5b8fb9;--color-accent-secondary-hover:#6fa3cf;--color-success:#4ade80;--color-success-bg:#4ade801a;--color-warning:#fbbf24;--color-warning-bg:#fbbf241a;--color-error:#f87171;--color-error-bg:#f871711a;--color-border:#ffffff14;--color-border-focus:#d4a85380;--color-section-1:#d4a853;--color-section-2:#5b8fb9;--color-section-3:#a78bfa;--color-section-4:#4ade80;--color-section-5:#fb923c;--color-section-6:#f472b6;--color-section-7:#22d3ee}[data-theme=light]{--color-bg-primary:#f8f5f0;--color-bg-secondary:#efeae3;--color-bg-card:#fff;--color-bg-card-hover:#f5f1eb;--color-bg-input:#fff;--color-bg-modal:#f8f5f0e6;--color-surface-glass:#ffffffb3;--color-surface-glass-border:#00000014;--color-text-primary:#1a1a2e;--color-text-secondary:#4a5568;--color-text-muted:#8896a6;--color-text-inverse:#f8f5f0;--color-accent-primary:#b8912e;--color-accent-primary-hover:#a07e24;--color-accent-primary-glow:#b8912e1f;--color-accent-secondary:#3a7ab5;--color-accent-secondary-hover:#2d6a9f;--color-success:#22c55e;--color-success-bg:#22c55e1a;--color-warning:#d4a017;--color-warning-bg:#d4a0171a;--color-error:#ef4444;--color-error-bg:#ef44441a;--color-border:#0000001a;--color-border-focus:#b8912e80;--color-section-1:#b8912e;--color-section-2:#3a7ab5;--color-section-3:#7c5cbf;--color-section-4:#22c55e;--color-section-5:#e07020;--color-section-6:#d44a8a;--color-section-7:#0ea5c9}:root{--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--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;--font-weight-light:300;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--line-height-tight:1.25;--line-height-normal:1.5;--line-height-relaxed:1.75;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--radius-sm:.375rem;--radius-md:.5rem;--radius-lg:.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--radius-full:9999px;--shadow-sm:0 1px 2px #0000004d;--shadow-md:0 4px 6px #0000004d;--shadow-lg:0 10px 25px #0006;--shadow-xl:0 20px 50px #00000080;--shadow-glow:0 0 20px var(--color-accent-primary-glow);--transition-fast:.15s ease;--transition-base:.25s ease;--transition-slow:.4s ease;--container-max:1200px;--header-height:64px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height-normal);color:var(--color-text-primary);background-color:var(--color-bg-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;transition:background-color .3s,color .3s}a{color:var(--color-accent-secondary);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--color-accent-secondary-hover)}img{max-width:100%;display:block}.header{height:var(--header-height);background:var(--color-bg-primary);border-bottom:1px solid var(--color-surface-border);z-index:100;padding:0 var(--space-6);align-items:center;display:flex;position:fixed;top:0;left:0;right:0}.header-inner{max-width:var(--container-max);justify-content:space-between;align-items:center;width:100%;margin:0 auto;display:flex}.header-brand{align-items:center;gap:var(--space-3);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);cursor:pointer;white-space:nowrap;text-decoration:none;display:flex}.header-brand-logo{object-fit:contain;flex-shrink:0;width:32px;height:32px}.header-nav{align-items:center;gap:var(--space-4);display:flex}.header-nav-link{color:var(--color-text-secondary);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);transition:all var(--transition-fast);white-space:nowrap;position:relative}.header-nav-link:hover,.header-nav-link.active{color:var(--color-accent-primary);background:0 0}.header-nav-link.active:after{content:"";background:var(--color-accent-primary);border-radius:2px;width:70%;height:2px;position:absolute;bottom:0;left:15%;box-shadow:0 0 8px #d4a85399}.nav-dropdown{display:inline-flex;position:relative}.nav-dropdown:after{content:"";height:var(--space-2);position:absolute;top:100%;left:0;right:0}.nav-dropdown-trigger{cursor:pointer;background:0 0;border:none;align-items:center;gap:4px;font-family:inherit;display:flex}.nav-dropdown-content{background-color:var(--color-bg-card);min-width:160px;box-shadow:var(--shadow-md);border-radius:var(--radius-md);border:1px solid var(--color-border);z-index:1000;margin-top:var(--space-2);display:none;position:absolute;top:100%;left:0;overflow:hidden}.nav-dropdown:hover .nav-dropdown-content{flex-direction:column;display:flex}.nav-dropdown-item{color:var(--color-text-primary);padding:var(--space-3) var(--space-4);font-size:var(--font-size-sm);transition:background-color var(--transition-fast);text-decoration:none;display:block}.nav-dropdown-item:hover{background-color:var(--color-bg-card-hover);color:var(--color-accent-primary)}.header-user{align-items:center;gap:var(--space-4);display:flex}.header-email{font-size:var(--font-size-sm);color:var(--color-text-muted)}.theme-toggle{background:var(--color-bg-card);border:1px solid var(--color-border);color:var(--color-accent-primary);border-radius:var(--radius-full);cursor:pointer;width:36px;height:36px;font-size:var(--font-size-lg);transition:all var(--transition-fast);flex-shrink:0;justify-content:center;align-items:center;display:flex}.theme-toggle:hover{background:var(--color-bg-card-hover);border-color:var(--color-accent-primary);transform:scale(1.1)}.page-container{max-width:var(--container-max);padding:calc(var(--header-height) + var(--space-8)) var(--space-6) var(--space-8);min-height:100vh;margin:0 auto}.page-header{margin-bottom:var(--space-8)}.page-title{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);line-height:var(--line-height-tight);margin-bottom:var(--space-2)}.page-subtitle{font-size:var(--font-size-base);color:var(--color-text-secondary);line-height:var(--line-height-relaxed)}.btn{justify-content:center;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);border-radius:var(--radius-lg);font-family:var(--font-family);font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;border:none;line-height:1;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:linear-gradient(135deg, var(--color-accent-primary), #c49a40);color:var(--color-text-inverse);box-shadow:var(--shadow-sm), var(--shadow-glow)}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg, var(--color-accent-primary-hover), #d4aa50);box-shadow:var(--shadow-md), 0 0 30px var(--color-accent-primary-glow);transform:translateY(-1px)}.btn-secondary{background:var(--color-bg-card);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-bg-card-hover);border-color:var(--color-accent-primary)}.btn-ghost{color:var(--color-text-secondary);background:0 0}.btn-ghost:hover:not(:disabled){color:var(--color-text-primary);background:var(--color-bg-card)}.btn-danger{background:var(--color-error-bg);color:var(--color-error);border:1px solid #f8717133}.btn-sm{padding:var(--space-2) var(--space-4);font-size:var(--font-size-xs)}.btn-lg{padding:var(--space-4) var(--space-8);font-size:var(--font-size-base)}.btn-block{width:100%}.form-group{margin-bottom:var(--space-6)}.form-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);margin-bottom:var(--space-2);display:block}.form-input,.form-textarea,.form-select{width:100%;padding:var(--space-3) var(--space-4);background:var(--color-bg-input);border:1px solid var(--color-border);border-radius:var(--radius-lg);color:var(--color-text-primary);font-family:var(--font-family);font-size:var(--font-size-base);transition:all var(--transition-fast)}.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--color-border-focus);box-shadow:0 0 0 3px var(--color-accent-primary-glow);outline:none}.form-input::placeholder,.form-textarea::placeholder{color:var(--color-text-muted)}.form-textarea{resize:vertical;min-height:120px;line-height:var(--line-height-relaxed)}.form-error{font-size:var(--font-size-xs);color:var(--color-error);margin-top:var(--space-1)}.form-hint{font-size:var(--font-size-xs);color:var(--color-text-muted);margin-top:var(--space-1)}.card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-6);transition:all var(--transition-base)}.card:hover{box-shadow:var(--shadow-md);border-color:#ffffff1f}.card-glass{background:var(--color-surface-glass);-webkit-backdrop-filter:blur(12px);border:1px solid var(--color-surface-glass-border)}.module-card{align-items:center;gap:var(--space-5);padding:var(--space-5) var(--space-6);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);cursor:pointer;transition:all var(--transition-base);color:inherit;text-decoration:none;display:flex}.module-card:hover{background:var(--color-bg-card-hover);box-shadow:var(--shadow-md);color:inherit;border-color:#ffffff1f;transform:translateY(-2px)}.module-color-bar{border-radius:var(--radius-full);flex-shrink:0;width:4px;height:48px}.module-info{flex:1;min-width:0}.module-label{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--space-1)}.module-title{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin-bottom:var(--space-1)}.module-desc{font-size:var(--font-size-sm);color:var(--color-text-secondary);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.module-progress{align-items:flex-end;gap:var(--space-2);flex-direction:column;flex-shrink:0;display:flex}.module-progress-text{font-size:var(--font-size-xs);color:var(--color-text-muted)}.module-progress-bar{background:var(--color-bg-primary);border-radius:var(--radius-full);width:80px;height:4px;overflow:hidden}.module-progress-fill{background:var(--color-accent-primary);border-radius:var(--radius-full);height:100%;transition:width var(--transition-slow)}.module-chevron{color:var(--color-text-muted);font-size:var(--font-size-xl);flex-shrink:0}.progress-container{margin-bottom:var(--space-8)}.progress-header{margin-bottom:var(--space-3);justify-content:space-between;align-items:center;display:flex}.progress-label{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-secondary)}.progress-value{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-accent-primary)}.progress-track{background:var(--color-bg-card);border-radius:var(--radius-full);width:100%;height:8px;overflow:hidden}.progress-fill{background:linear-gradient(90deg, var(--color-accent-primary), var(--color-accent-primary-hover));border-radius:var(--radius-full);height:100%;transition:width var(--transition-slow)}.lesson-list{gap:var(--space-2);flex-direction:column;display:flex}.lesson-item{align-items:center;gap:var(--space-4);padding:var(--space-4) var(--space-5);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-fast);color:inherit;text-decoration:none;display:flex}.lesson-item:hover{background:var(--color-bg-card-hover);color:inherit}.lesson-check{border-radius:var(--radius-full);border:2px solid var(--color-border);width:24px;height:24px;font-size:var(--font-size-xs);transition:all var(--transition-fast);flex-shrink:0;justify-content:center;align-items:center;display:flex}.lesson-check.completed{background:var(--color-success);border-color:var(--color-success);color:var(--color-bg-primary)}.lesson-info{flex:1}.lesson-title{font-size:var(--font-size-base);font-weight:var(--font-weight-medium)}.lesson-type{font-size:var(--font-size-xs);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.lesson-content-area{max-width:800px;margin:0 auto}.breadcrumb{align-items:center;gap:var(--space-2);font-size:var(--font-size-sm);color:var(--color-text-muted);margin-bottom:var(--space-6);display:flex}.breadcrumb a{color:var(--color-text-muted)}.breadcrumb a:hover{color:var(--color-accent-primary)}.breadcrumb-sep{color:var(--color-text-muted)}.video-container{width:100%;margin-bottom:var(--space-8);border-radius:var(--radius-xl);background:var(--color-bg-secondary);padding-bottom:56.25%;position:relative;overflow:hidden}.video-container video{object-fit:contain;width:100%;height:100%;position:absolute;top:0;left:0}.lesson-body{font-size:var(--font-size-base);line-height:var(--line-height-relaxed);color:var(--color-text-secondary)}.lesson-body h2{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);color:var(--color-text-primary);margin:var(--space-8) 0 var(--space-4)}.lesson-body h3{font-size:var(--font-size-xl);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:var(--space-6) 0 var(--space-3)}.lesson-body h4{font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary);margin:var(--space-6) 0 var(--space-3)}.lesson-body p{margin-bottom:var(--space-4)}.lesson-body ul,.lesson-body ol{margin:var(--space-4) 0;padding-left:var(--space-6)}.lesson-body li{margin-bottom:var(--space-2)}.lesson-body blockquote{padding:var(--space-4) var(--space-5);border-left:3px solid var(--color-accent-primary);background:var(--color-surface-glass);border-radius:0 var(--radius-lg) var(--radius-lg) 0;margin:var(--space-6) 0;color:var(--color-text-primary);font-style:italic}.lesson-body blockquote:has(cite){border-left:none;border-right:3px solid var(--color-accent-primary);border-radius:var(--radius-lg) 0 0 var(--radius-lg);text-align:right;max-width:85%;margin-left:auto}.lesson-body blockquote cite{margin-top:var(--space-2);font-style:normal;font-weight:700;display:block}.lesson-body blockquote cite:before{content:"—"}.lesson-body strong{color:var(--color-text-primary)}.lesson-nav{margin-top:var(--space-12);padding-top:var(--space-8);border-top:1px solid var(--color-border);justify-content:space-between;align-items:center;display:flex}.lesson-nav-btn{align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);color:var(--color-text-secondary);font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);font-family:var(--font-family);cursor:pointer;transition:all var(--transition-fast);text-decoration:none;display:flex}.lesson-nav-btn:hover{background:var(--color-bg-card-hover);color:var(--color-text-primary);border-color:var(--color-accent-primary)}.journal-link-card{align-items:center;gap:var(--space-4);padding:var(--space-5) var(--space-6);background:var(--color-accent-primary-glow);border-radius:var(--radius-xl);margin:var(--space-8) 0;color:inherit;transition:all var(--transition-base);border:1px solid #d4a8534d;text-decoration:none;display:flex}.journal-link-card:hover{border-color:var(--color-accent-primary);box-shadow:var(--shadow-md);color:inherit;background:#d4a85333;transform:translateY(-2px)}.journal-link-icon{font-size:var(--font-size-2xl);flex-shrink:0}.journal-link-text h4{font-size:var(--font-size-base);font-weight:var(--font-weight-semibold);color:var(--color-accent-primary);margin-bottom:var(--space-1)}.journal-link-text p{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.login-container{min-height:100vh;padding:var(--space-6);justify-content:center;align-items:center;display:flex}.login-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-2xl);width:100%;max-width:420px;padding:var(--space-10)}.login-header{text-align:center;margin-bottom:var(--space-8)}.login-logo{margin-bottom:var(--space-4);justify-content:center;display:flex}.login-logo img{object-fit:contain;width:56px;height:56px}.login-title{font-size:var(--font-size-2xl);font-weight:var(--font-weight-bold);margin-bottom:var(--space-2)}.login-subtitle{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.login-error{padding:var(--space-3) var(--space-4);background:var(--color-error-bg);border-radius:var(--radius-lg);color:var(--color-error);font-size:var(--font-size-sm);margin-bottom:var(--space-6);border:1px solid #f8717133}.admin-stats{gap:var(--space-4);margin-bottom:var(--space-8);grid-template-columns:repeat(auto-fit,minmax(200px,1fr));display:grid}.stat-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-5);text-align:center}.stat-value{font-size:var(--font-size-3xl);font-weight:var(--font-weight-bold);color:var(--color-accent-primary);margin-bottom:var(--space-1)}.stat-label{font-size:var(--font-size-sm);color:var(--color-text-muted)}.admin-table{border-collapse:collapse;width:100%}.admin-table th,.admin-table td{padding:var(--space-3) var(--space-4);text-align:left;border-bottom:1px solid var(--color-border)}.admin-table th{font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em}.admin-table td{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.admin-table tr:hover td{background:var(--color-bg-card)}.admin-toolbar{margin-bottom:var(--space-6);justify-content:space-between;align-items:center;display:flex}.badge{padding:var(--space-1) var(--space-3);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:var(--font-weight-semibold);align-items:center;display:inline-flex}.badge-success{background:var(--color-success-bg);color:var(--color-success)}.badge-warning{background:var(--color-warning-bg);color:var(--color-warning)}.badge-muted{color:var(--color-text-muted);background:#6b72801a}.loading-container{justify-content:center;align-items:center;min-height:60vh;display:flex}.spinner{border:3px solid var(--color-border);border-top-color:var(--color-accent-primary);border-radius:var(--radius-full);width:40px;height:40px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width:768px){.page-container{padding-left:var(--space-4);padding-right:var(--space-4)}.page-title{font-size:var(--font-size-2xl)}.module-card{gap:var(--space-3);flex-wrap:wrap}.module-desc{display:none}.module-progress{flex-direction:row;align-items:center}.lesson-nav{gap:var(--space-3);flex-direction:column}.lesson-nav-btn{justify-content:center;width:100%}.header-email{display:none}.admin-stats{grid-template-columns:repeat(2,1fr)}}.course-viewer{height:calc(100vh - var(--header-height));margin-top:var(--header-height);display:flex;position:relative}.course-sidebar{background:var(--color-bg-secondary);border-right:1px solid var(--color-border);width:340px;min-width:340px;transition:transform var(--transition-base);flex-direction:column;display:flex;overflow:hidden}.sidebar-header{padding:var(--space-5) var(--space-5) var(--space-4);border-bottom:1px solid 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