:root{--primary-50:#eff6ff;--primary-100:#dbeafe;--primary-200:#bfdbfe;--primary-300:#93c5fd;--primary-400:#60a5fa;--primary-500:#3b82f6;--primary-600:#2563eb;--primary-700:#1d4ed8;--primary-800:#1e40af;--primary-900:#1e3a8a;--primary-950:#0f172a;--cyan-50:#f0fdfa;--cyan-100:#ccfbf1;--cyan-400:#2dd4bf;--cyan-500:#06b6d4;--cyan-600:#0891b2;--cyan-700:#0e7490;--amber-50:#fffbeb;--amber-100:#fef3c7;--amber-400:#fbbf24;--amber-500:#f59e0b;--amber-600:#d97706;--amber-700:#b45309;--success-500:#10b981;--success-600:#059669;--danger-500:#ef4444;--danger-600:#dc2626;--bg-white:#ffffff;--bg-card:#ffffff;--bg-card-hover:#fcfdfe;--bg-secondary:#f8fafc;--bg-slate-50:#f8fafc;--bg-slate-100:#f1f5f9;--bg-slate-200:#e2e8f0;--bg-dark-900:#0f172a;--bg-dark-950:#0a0f1d;--bg-terminal:#090d16;--header-bg:rgba(255,255,255,0.92);--header-bg-scrolled:rgba(255,255,255,0.98);--modal-bg:#ffffff;--modal-backdrop:rgba(15,23,42,0.6);--drawer-bg:#ffffff;--hero-radial-bg:radial-gradient(circle at 75% 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var(--transition-fast)}button{font-family:inherit;border:none;background:none;cursor:pointer}input,select,textarea{font-family:inherit;font-size:inherit}.announcement-bar{background:var(--bg-dark-950);color:var(--text-light-muted);padding:8px 16px;font-size:.82rem;font-weight:500;display:flex;align-items:center;justify-content:center;gap:12px;text-align:center;border-bottom:1px solid var(--border-dark);position:relative;z-index:60}.announcement-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.3);color:#f87171;padding:2px 8px;border-radius:var(--radius-xs);font-size:.72rem;font-weight:600;letter-spacing:.02em}.announcement-badge 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var(--amber-100)}.dark .badge-pill-amber{background:rgba(245,158,11,.16);color:#fbbf24;border-color:rgba(245,158,11,.35);box-shadow:0 0 12px rgba(245,158,11,.12)}.course-badge{position:absolute;top:10px;left:10px;font-size:.7rem;font-weight:700;letter-spacing:.02em;padding:3px 8px;border-radius:var(--radius-xs);z-index:2;box-shadow:0 1px 4px rgba(0,0,0,.25)}.badge-live{background:#dc2626;color:#ffffff}.badge-hot{background:#0284c7;color:#ffffff}.badge-flagship{background:#1d4ed8;color:#ffffff}.badge-popular{background:#0891b2;color:#ffffff}.badge-enterprise{background:#475569;color:#ffffff}.badge-specialty{background:#059669;color:#ffffff}.badge-security{background:#b91c1c;color:#ffffff}.badge-software{background:#334155;color:#ffffff}.tech-tag{font-family:var(--font-mono);font-size:.72rem;font-weight:500;color:var(--text-body);background:var(--bg-slate-100);padding:2px 7px;border-radius:var(--radius-xs);border:1px solid var(--border-light)}.hero-section{position:relative;padding:70px 0;background-color:#ffffff;border-bottom:1px solid var(--border-light);overflow:hidden;text-align:center}.hero-grid-pattern{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(90deg,rgba(15,23,42,.07) 1px,transparent 0),linear-gradient(180deg,rgba(15,23,42,.07) 1px,transparent 0);background-size:36px 36px;-webkit-mask-image:radial-gradient(ellipse 85% 75% at 50% 45%,#000 35%,transparent 85%);mask-image:radial-gradient(ellipse 85% 75% at 50% 45%,#000 35%,transparent 85%);z-index:1}.dark .hero-grid-pattern{background-image:linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 0),linear-gradient(180deg,rgba(255,255,255,.05) 1px,transparent 0)}.hero-ambient-glow{position:absolute;top:15%;left:50%;transform:translateX(-50%);width:600px;height:260px;background:radial-gradient(circle,rgba(37,99,235,.08) 0,rgba(6,182,212,.04) 45%,transparent 70%);pointer-events:none;z-index:1;filter:blur(50px)}.dark 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.gradient-text{color:var(--primary-600)}.hero-subtitle{font-size:1.12rem;color:var(--text-muted);line-height:1.65;max-width:860px;margin:0 auto 26px}.hero-cta-group{margin-bottom:20px}.hero-cta-group,.hero-tech-strip{display:flex;align-items:center;justify-content:center}.hero-tech-strip{margin-top:0;padding-top:10px;border-top:none;gap:8px;flex-wrap:wrap;width:100%}.tech-strip-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);margin-right:6px}.hero-tech-pill{font-family:var(--font-mono);font-size:.74rem;font-weight:600;color:var(--text-body);background:var(--bg-slate-50);border:1px solid var(--border-light);padding:3px 9px;border-radius:var(--radius-xs)}.stats-bar{background:#ffffff;border-bottom:1px solid var(--border-light);padding:30px 0}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}.stat-item{display:flex;flex-direction:column;gap:2px}.stat-number{font-size:2.1rem;font-weight:800;color:var(--text-main);letter-spacing:-.02em}.stat-label{font-size:.84rem;font-weight:600;color:var(--text-muted)}.pedagogy-section{padding:84px 0;background:#ffffff}.section-header{text-align:center;max-width:640px;margin:0 auto 50px}.section-header .section-tag{display:inline-block;margin-bottom:10px}.section-title{font-size:clamp(1.6rem,3.5vw,2.2rem);font-weight:800;color:var(--text-main);letter-spacing:-.025em;margin-bottom:14px;line-height:1.22}.section-desc{font-size:1.02rem;color:var(--text-muted);line-height:1.6}.pillars-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.pillar-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:28px 22px;display:flex;flex-direction:column;gap:14px;transition:all 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var(--border-light)}.catalog-controls{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:28px;flex-wrap:wrap}.filter-tabs-wrapper{display:flex;gap:8px;flex-wrap:wrap}.filter-btn{padding:8px 16px;border-radius:var(--radius-sm);font-size:.84rem;font-weight:600;color:var(--text-body);background:var(--bg-card);border:1px solid var(--border-light);transition:all var(--transition-fast);cursor:pointer!important;user-select:none;-webkit-user-select:none}.filter-btn:hover{border-color:var(--border-medium);color:var(--text-main);background:var(--bg-slate-100)}.filter-btn.active{background:var(--primary-600);color:#ffffff;border-color:var(--primary-600);border-radius:var(--radius-sm)}.dark .filter-btn{background:#0d1527;border-color:rgba(255,255,255,.12);color:#cbd5e1}.dark .filter-btn:hover{background:#131e36;border-color:#38bdf8;color:#38bdf8}.dark 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var(--transition-normal);box-shadow:var(--shadow-xs);user-select:none;-webkit-user-select:none}.course-card,.course-card *{cursor:default}.course-card .btn,.course-card a,.course-card button,.course-thumb-wrap{cursor:pointer!important}.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--border-medium)}.course-thumb-wrap{position:relative;aspect-ratio:16/9;background:#090d16;overflow:hidden}.course-image{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-slow)}.course-card:hover .course-image{transform:scale(1.03)}.course-thumb-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.15),rgba(0,0,0,.45))}.course-level-tag{position:absolute;bottom:8px;right:10px;background:rgba(15,23,42,.85);backdrop-filter:blur(4px);color:#f1f5f9;font-size:.7rem;font-weight:600;padding:2px 7px;border-radius:var(--radius-xs)}.course-card-body{padding:20px;display:flex;flex-direction:column;flex:1}.course-meta-top{gap:12px;margin-bottom:10px;font-size:.78rem;color:var(--text-muted)}.course-meta-top,.meta-item{display:flex;align-items:center}.meta-item{gap:4px;font-weight:600}.meta-rating{color:var(--amber-600)}.meta-seats-pill{margin-left:auto;font-size:.7rem;font-weight:600;color:var(--danger-600);background:#fef2f2;padding:1px 6px;border-radius:var(--radius-xs);border:1px solid #fee2e2}.course-title{font-size:1.15rem;font-weight:800;color:var(--text-main);line-height:1.35;margin-bottom:8px}.course-description{font-size:.85rem;color:var(--text-muted);line-height:1.52;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.course-tech-tags{display:flex;flex-wrap:wrap;gap:5px;margin-bottom:16px}.course-mentor-info{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--bg-slate-50);border-radius:var(--radius-sm);margin-bottom:18px;border:1px solid var(--border-light)}.mentor-avatar-small{color:var(--text-muted);display:flex;align-items:center}.mentor-details{display:flex;flex-direction:column}.mentor-label{font-size:.65rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.03em;font-weight:600}.mentor-name-sm{font-size:.82rem;font-weight:700;color:var(--text-main)}.course-card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--border-light);margin-top:auto}.course-price-wrap{display:flex;flex-direction:column}.current-price{font-size:1.2rem;font-weight:800;color:var(--text-main)}.orig-price{font-size:.74rem;color:var(--text-muted);text-decoration:line-through}.course-actions{display:flex;align-items:center;gap:6px}.roadmaps-section{padding:84px 0;background:#ffffff}.roadmap-tabs-row{display:flex;justify-content:center;gap:10px;margin-bottom:40px}.roadmap-tab-btn{padding:10px 20px;border-radius:var(--radius-md);font-size:.9rem;font-weight:700;color:var(--text-body);background:var(--bg-slate-50);border:1px solid var(--border-light);transition:all var(--transition-fast)}.roadmap-tab-btn:hover{border-color:var(--border-medium);color:var(--text-main)}.roadmap-tab-btn.active{background:var(--primary-50);border-color:var(--primary-600);color:var(--primary-700)}.roadmap-view{display:none}.roadmap-view.active{display:block;animation:fadeIn .2s ease}.roadmap-steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.roadmap-step-card{background:var(--bg-slate-50);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:24px 18px;display:flex;flex-direction:column;gap:10px;transition:all var(--transition-normal)}.roadmap-step-card:hover{border-color:var(--border-medium);background:#ffffff;box-shadow:var(--shadow-sm)}.step-num-pill{width:28px;height:28px;border-radius:var(--radius-xs);background:var(--text-main);color:#ffffff;display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700;font-family:var(--font-mono)}.step-phase{font-size:.7rem;font-weight:700;text-transform:uppercase;color:var(--primary-700);letter-spacing:.03em}.step-title{font-size:1.05rem;font-weight:750;color:var(--text-main)}.step-desc{font-size:.85rem;color:var(--text-muted);line-height:1.5}.step-project-badge{margin-top:auto;padding:6px 8px;background:#ffffff;border-radius:var(--radius-xs);border:1px solid var(--border-light);font-size:.75rem;color:var(--text-body);font-weight:600}.dashboard-preview-section{padding:84px 0;background:var(--bg-slate-50);border-top:1px solid var(--border-light)}.dash-preview-frame{background:#ffffff;border:1px solid var(--border-medium);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}.dash-frame-header{background:var(--bg-dark-900);padding:12px 18px;display:flex;align-items:center;justify-content:space-between;color:#ffffff}.dash-frame-tabs{display:flex;gap:6px}.dash-tab-btn{padding:5px 12px;font-size:.78rem;font-weight:600;border-radius:var(--radius-xs);color:var(--text-light-muted);background:transparent;transition:all var(--transition-fast)}.dash-tab-btn:hover{color:#ffffff}.dash-tab-btn.active{background:#1e293b;color:#38bdf8}.dash-panel{display:none;padding:26px}.dash-panel.active{display:block;animation:fadeIn .2s ease}.diff-viewer{background:var(--bg-terminal);color:#e2e8f0;border-radius:var(--radius-md);padding:18px;font-family:var(--font-mono);font-size:.8rem;line-height:1.6}.diff-header{border-bottom:1px solid var(--border-dark);padding-bottom:8px;margin-bottom:10px;display:flex;justify-content:space-between;color:#94a3b8}.diff-line{padding:2px 4px;border-radius:2px}.diff-del{background:rgba(239,68,68,.15);color:#f87171}.diff-add{background:rgba(16,185,129,.15);color:#34d399}.diff-mentor-comment{margin:10px 0;padding:10px 14px;background:rgba(37,99,235,.12);border-left:3px solid var(--primary-500);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#93c5fd;font-family:var(--font-sans);font-size:.85rem}.matrix-section{padding:84px 0;background:#ffffff}.comparison-table-wrapper{overflow-x:auto;border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-xs);background:#ffffff}.comparison-table{width:100%;border-collapse:collapse;text-align:left}.comparison-table td,.comparison-table th{padding:16px 20px;border-bottom:1px solid var(--border-light);font-size:.9rem}.comparison-table th{background:var(--bg-slate-50);font-weight:700;color:var(--text-main)}.comparison-table th.col-highlight{background:var(--primary-50);color:var(--primary-900);border-top:3px solid var(--primary-600)}.comparison-table td.col-highlight{background:rgba(239,246,255,.35);font-weight:600;color:var(--primary-950)}.check-yes{color:var(--success-600);font-weight:700}.check-no,.check-yes{display:inline-flex;align-items:center;gap:6px}.check-no{color:var(--text-muted)}.mentors-section{padding:84px 0;background:var(--bg-slate-50)}.mentors-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.mentor-profile-card{background:#ffffff;border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:28px 22px;display:flex;flex-direction:column;transition:all var(--transition-normal);box-shadow:var(--shadow-xs)}.mentor-profile-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--border-medium)}.mentor-header-row{display:flex;align-items:center;gap:14px;margin-bottom:14px}.mentor-avatar-box{width:48px;height:48px;border-radius:var(--radius-md);background:var(--bg-slate-100);color:var(--primary-600);display:flex;align-items:center;justify-content:center;flex-shrink:0;border:1px solid var(--border-light)}.mentor-name{font-size:1.12rem;font-weight:800;color:var(--text-main);line-height:1.2}.mentor-title-badge{font-size:.78rem;font-weight:600;color:var(--primary-700)}.mentor-bio{font-size:.86rem;color:var(--text-muted);line-height:1.55}.faq-section{padding:84px 0;background:#ffffff}.faq-container{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px}.faq-item{border:1px solid var(--border-light);border-radius:var(--radius-md);background:#ffffff;overflow:hidden;transition:border-color var(--transition-fast)}.faq-item.open{border-color:var(--border-medium);box-shadow:var(--shadow-xs)}.faq-header{padding:16px 20px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;user-select:none}.faq-question{font-size:.98rem;font-weight:700;color:var(--text-main)}.faq-chevron{transition:transform var(--transition-normal);color:var(--text-muted)}.faq-item.open .faq-chevron{transform:rotate(180deg);color:var(--primary-600)}.faq-body{display:none;font-size:.9rem;color:var(--text-body);line-height:1.6;border-top:1px solid var(--border-light);padding:14px 20px 18px}.faq-item.open .faq-body{display:block}.contact-section{padding:84px 0;background:var(--bg-slate-50);border-top:1px solid var(--border-light)}.contact-cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;width:100%;margin:0 auto}.contact-card-box{background:#ffffff;border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:32px 24px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;box-shadow:var(--shadow-xs);transition:all var(--transition-normal);user-select:none;-webkit-user-select:none}.contact-card-box:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--border-medium)}.contact-icon-large{width:48px;height:48px;border-radius:var(--radius-md);background:var(--bg-slate-100);color:var(--primary-600);display:flex;align-items:center;justify-content:center;margin-bottom:4px;border:1px solid var(--border-light)}.contact-card-title{font-size:1.05rem;font-weight:800;color:var(--text-main)}.contact-card-desc{font-size:.88rem;color:var(--text-muted);line-height:1.55}.contact-card-action{margin-top:auto;font-size:.9rem;font-weight:700;color:var(--primary-600);text-decoration:underline;text-underline-offset:3px;cursor:pointer!important}.contact-campus-notice{max-width:800px;margin:32px auto 0;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:16px 24px;text-align:center;font-size:.86rem;color:var(--text-muted);box-shadow:var(--shadow-xs)}.form-input,.form-select,.form-textarea{width:100%;padding:10px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-light);background:var(--input-bg);font-size:.88rem;color:var(--text-main);outline:none;transition:border-color var(--transition-fast),background var(--transition-fast),box-shadow var(--transition-fast)}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--primary-600);background:#ffffff;box-shadow:0 0 0 3px rgba(37,99,235,.12)}.dark .form-input,.dark .form-select,.dark .form-textarea{background:#0a1020;border-color:rgba(255,255,255,.12);color:#f8fafc}.dark .form-input:focus,.dark .form-select:focus,.dark .form-textarea:focus{border-color:#38bdf8;background:#0d1527;box-shadow:0 0 0 3px rgba(56,189,248,.2)}.site-footer{background:var(--bg-dark-950);color:#ffffff;padding:70px 0 28px;border-top:1px solid var(--border-dark)}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:50px}.footer-brand{display:flex;flex-direction:column;gap:14px}.footer-logo-row{display:flex;align-items:center;gap:10px}.footer-logo-img{width:36px;height:36px;border-radius:var(--radius-sm);background:#ffffff;padding:2px}.footer-brand-name{font-size:1.2rem;font-weight:800;color:#ffffff}.footer-desc{font-size:.84rem;color:#94a3b8;line-height:1.6;max-width:300px}.footer-col-title{font-size:.88rem;font-weight:750;color:#ffffff;margin-bottom:16px}.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}.footer-link{font-size:.84rem;color:#94a3b8;transition:color var(--transition-fast)}.footer-link:hover{color:#ffffff}.footer-bottom{border-top:1px solid var(--border-dark);padding-top:24px;display:flex;align-items:center;justify-content:space-between;font-size:.8rem;color:#64748b;flex-wrap:wrap;gap:14px}.gurukulam-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;z-index:100;padding:20px}.gurukulam-modal.active{display:flex}.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.6);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px)}.modal-content-box{position:relative;background:var(--modal-bg);border:1px solid var(--border-medium);border-radius:var(--radius-xl);max-width:720px;width:100%;max-height:88vh;overflow-y:auto;box-shadow:var(--shadow-xl);z-index:2;animation:modalPop .18s ease-out}.modal-header{padding:20px 24px;border-bottom:1px solid var(--border-light);display:flex;align-items:flex-start;justify-content:space-between;position:sticky;top:0;background:var(--modal-bg);z-index:3}.modal-close-btn{font-size:1.4rem;color:var(--text-muted);width:36px;height:36px;min-width:36px;min-height:36px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;background:var(--bg-slate-100);transition:all var(--transition-fast);cursor:pointer}.modal-close-btn:hover{background:#fee2e2;color:#dc2626}.modal-body{padding:24px}.meta-pill{display:inline-flex;align-items:center;gap:5px;background:var(--bg-slate-100);padding:3px 8px;border-radius:var(--radius-xs);font-size:.78rem}.mentor-avatar-badge{width:36px;height:36px;border-radius:var(--radius-sm);background:var(--primary-100);color:var(--primary-700);display:flex;align-items:center;justify-content:center}.syllabus-week-card{background:var(--bg-slate-50);border:1px solid var(--border-light);border-radius:var(--radius-md);padding:14px 16px;margin-bottom:12px}.syllabus-week-header{display:flex;align-items:center;gap:10px;margin-bottom:8px}.syllabus-week-pill{font-family:var(--font-mono);font-size:.72rem;font-weight:700;background:var(--text-main);color:#ffffff;padding:2px 6px;border-radius:var(--radius-xs)}.syllabus-week-title{font-size:.95rem;font-weight:750;color:var(--text-main)}.syllabus-topics-list{list-style:none;display:flex;flex-direction:column;gap:4px}.syllabus-topics-list li{font-size:.84rem;color:var(--text-muted);display:flex;align-items:flex-start;gap:8px}.bullet-dot{width:5px;height:5px;border-radius:50%;background:var(--primary-500);margin-top:7px;flex-shrink:0}.modal-price-val{display:flex;align-items:baseline;gap:8px}.price-current{font-size:1.3rem;font-weight:800;color:var(--text-main)}.price-original{font-size:.85rem;color:var(--text-muted);text-decoration:line-through}.price-note{font-size:.76rem;color:var(--text-muted);display:block}.toast-container{position:fixed;bottom:20px;right:20px;z-index:120;display:flex;flex-direction:column;gap:8px;max-width:380px}.toast-item{display:flex;align-items:center;gap:10px;padding:12px 16px;background:var(--bg-dark-900);color:#ffffff;border-radius:var(--radius-md);box-shadow:var(--shadow-lg);border:1px solid var(--border-dark);font-size:.84rem}.toast-dot{width:8px;height:8px;border-radius:50%;background:#38bdf8;flex-shrink:0}.toast-item.toast-success .toast-dot{background:var(--success-500)}.toast-close{margin-left:auto;color:#94a3b8;font-size:1.1rem}@keyframes modalPop{0%{transform:scale(.97);opacity:0}to{transform:scale(1);opacity:1}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.courses-hero-section{padding:56px 0 44px;background-color:#ffffff;border-bottom:1px solid var(--border-light);text-align:left}.courses-hero-content{max-width:820px}.courses-eyebrow{display:inline-block;font-family:var(--font-sans);font-size:.8rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--primary-600);margin-bottom:12px;line-height:1}.courses-hero-heading{font-size:clamp(1.8rem,4.5vw,2.75rem);font-weight:850;line-height:1.15;color:var(--text-main);letter-spacing:-.03em;margin-bottom:14px}.courses-hero-desc{font-size:1.12rem;color:var(--text-muted);line-height:1.6;max-width:680px;margin:0}.course-discovery-section{padding:40px 0 80px;background:var(--bg-slate-50)}.discovery-controls-card{background:#ffffff;border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:22px 24px;box-shadow:var(--shadow-xs);margin-bottom:32px}.discovery-top-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}.discovery-search-wrap{position:relative;flex:1;min-width:280px}.discovery-search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-muted);pointer-events:none;display:flex;align-items:center}.discovery-search-input{width:100%;padding:11px 40px 11px 42px;border:1px solid var(--border-medium);border-radius:var(--radius-md);font-size:.9rem;color:var(--text-main);background:var(--bg-slate-50);outline:none;transition:all var(--transition-fast)}.discovery-search-input:focus{background:#ffffff;border-color:var(--primary-600);box-shadow:0 0 0 3px rgba(37,99,235,.1)}.discovery-search-clear{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text-muted);font-size:1.2rem;cursor:pointer;display:none;padding:2px 6px;line-height:1}.discovery-search-clear:hover{color:var(--text-main)}.discovery-sort-wrap{display:flex;align-items:center;gap:10px;white-space:nowrap}.discovery-sort-label{font-size:.82rem;font-weight:600;color:var(--text-muted)}.discovery-sort-select{padding:9px 34px 9px 14px;border:1px solid var(--border-medium);border-radius:var(--radius-md);font-size:.85rem;font-weight:600;color:var(--text-main);background-color:#ffffff;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;appearance:none;-webkit-appearance:none;cursor:pointer;outline:none;transition:border-color var(--transition-fast)}.discovery-sort-select:focus{border-color:var(--primary-600)}.discovery-category-strip{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:18px;border-top:1px solid var(--border-light)}.discovery-cat-btn{padding:7px 15px;border-radius:var(--radius-sm);font-size:.83rem;font-weight:600;color:var(--text-body);background:var(--bg-slate-50);border:1px solid var(--border-light);transition:all var(--transition-fast);cursor:pointer;user-select:none;white-space:nowrap}.discovery-cat-btn:hover{background:#ffffff;border-color:var(--border-medium);color:var(--text-main)}.discovery-cat-btn.active{background:var(--text-main);color:#ffffff;border-color:var(--text-main)}.discovery-status-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;gap:12px;flex-wrap:wrap}.discovery-results-count{font-size:.9rem;font-weight:700;color:var(--text-main)}.discovery-active-filter-badge{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;color:var(--primary-700);background:var(--primary-50);border:1px solid var(--primary-100);padding:3px 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var(--primary-200);color:var(--primary-700);display:flex;align-items:center;justify-content:center;font-size:.72rem;font-weight:750;flex-shrink:0}.instructor-text{display:flex;flex-direction:column}.instructor-name{font-size:.82rem;font-weight:700;color:var(--text-main);line-height:1.2}.instructor-role{font-size:.72rem;color:var(--text-muted);line-height:1.2}.nav-link.active{color:var(--primary-600);font-weight:700}.course-breadcrumb-nav{padding:16px 0 0;font-size:.82rem;color:var(--text-muted)}.course-breadcrumb{display:flex;align-items:center;gap:8px;list-style:none;flex-wrap:wrap}.course-breadcrumb a{color:var(--text-muted);text-decoration:none;transition:color var(--transition-fast)}.course-breadcrumb a:hover{color:var(--primary-600)}.course-breadcrumb-sep{color:var(--border-strong);font-size:.75rem}.course-breadcrumb-current{color:var(--text-main);font-weight:600}.detail-course-hero{position:relative;background:linear-gradient(180deg,#1d4fd8,#173eb6 40%,#0d2260 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