*{box-sizing:border-box}:root{--correct-color: #28a745;--wrong-color: #dc3545;--text-color: #222;--primary-color: #0097B2;--gold-color: #D4AF37;--text-dark: #1F2937;--text-grey: #6B7280;--bg-paper: #FDFBF7;--font-serif: "Georgia", "Times New Roman", serif;--font-sans: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;font-family:Poppins,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;scroll-behavior:smooth}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;padding:0;background-color:#f0f4f8;min-height:100vh;display:flex;justify-content:center;align-items:center}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s;background-color:var(--primary-color);color:#fff}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}.popup-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:1001}.popup-box{background:#fff;padding:20px;border-radius:10px;min-width:280px;max-width:90%;box-shadow:0 4px 15px #0000004d;text-align:center}.popup-btn-container{display:flex;justify-content:center;gap:20px}.loader-overlay{position:fixed;inset:0;background:#fff;display:flex;justify-content:center;align-items:center;z-index:2000}.loader-box{background:#fff;padding:20px 25px;border-radius:10px;text-align:center;display:flex;flex-direction:column;align-items:center}.spinner{width:40px;height:40px;border:4px solid #bbb;border-top-color:var(--primary-color);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:10px}@keyframes spin{to{transform:rotate(360deg)}}.login-container{background:#fff;border-radius:16px;box-shadow:0 4px 12px #0000001a;padding:2rem;text-align:center;transition:all .3s ease;border-top:5px solid var(--primary-color)}.login-title{font-size:1.5rem;font-weight:700;color:#222;margin-bottom:.5rem}.login-subtitle{color:#555;font-size:.95rem;margin-bottom:1.5rem}.login-form{display:flex;flex-direction:column;gap:1rem}.login-form input{padding:.9rem;border:1px solid #ddd;border-radius:8px;font-size:1rem;transition:border-color .3s ease}.login-form input:focus{border-color:#007bff;outline:none}.login-button{border:none;border-radius:8px;padding:.9rem;font-size:1rem;cursor:pointer;transition:background-color .3s ease,transform .2s ease}.login-button:hover{transform:scale(1.02)}.login-message{margin-top:1rem;font-size:.95rem;color:#333}@media(min-width:600px){.login-container{max-width:500px}}@media(min-width:900px){.login-container{max-width:600px}}.logo{font-size:1.5rem;font-weight:800;color:var(--text-main);display:flex;align-items:center}.logo span,.logo-wm span{color:var(--primary-color)}.logo-wm{position:absolute;z-index:10;font-size:1rem;font-weight:800;color:var(--text-main);display:flex;align-items:center;right:10px;top:0}@media(max-width:500px){.logo-wm{font-size:.6rem;right:5px}}.exam-container{display:flex;flex-direction:column;width:100vw;height:100vh;color:#fff;justify-content:space-between;align-items:center;padding:20px}.exam-header{width:100%;display:flex;flex-direction:column;gap:.8rem}.timer{color:#3a3a3a;font-size:18px;font-weight:700}.progress-bar-container{display:grid;gap:6px;width:100%;border-radius:10px}.progress-item{aspect-ratio:1 / 1;border-radius:50%;background:#3a3a3a;color:#eee;font-weight:600;font-size:.9rem;display:flex;align-items:center;justify-content:center;transition:.2s ease}.progress-indicator{display:flex;gap:10px;flex-wrap:wrap}.progress-dot.active{border:1px solid black}.progress-dot.answered{background-color:green;color:#fff}.progress-dot.active.answered{border:1px solid black;background-color:green;color:#fff}.exam-footer{width:100%;display:flex;justify-content:space-between}.exam-footer.onlyNext{width:100%;display:flex;justify-content:end}.question-container{width:80%;min-width:300px;min-height:300px;background:#fff;border-radius:16px;box-shadow:0 4px 12px #0000001a;text-align:center;transition:all .3s ease;box-sizing:border-box;padding:30px;overflow:auto}.question-text{font-size:1.1rem;font-weight:600;color:#222;margin-bottom:1rem}.question-image-container{display:flex;justify-content:center;margin-bottom:1rem}.question-image{width:100%;height:auto;max-width:600px;border-radius:12px;box-shadow:0 2px 6px #0000001a}.options-container{display:flex;flex-direction:column;gap:.8rem}.option-button{background-color:#f5f5f5;border:1px solid #ddd;border-radius:8px;padding:.9rem;font-size:1rem;color:#333;cursor:pointer;transition:background-color .3s ease,transform .2s ease}.option-button:hover{background-color:#e8e8e8;transform:scale(1.02)}.option-button:active{background-color:#dcdcdc;transform:scale(.98)}.option-button.selected{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color);transform:scale(1.03)}.open-input{padding:10px;border-radius:5px;background-color:#dcdcdc}.open-input:focus{background-color:#fff}.circuit-container{--c-primary: #3b82f6;--c-primary-dark: #2563eb;--c-bg-card: #ffffff;--c-border: #e2e8f0;--c-text: #334155;--c-text-light: #64748b;--c-success: #10b981;--c-error: #ef4444;--c-radius: 12px;--c-shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .06);width:100%;color:var(--c-text)}.circuit-title{text-align:center;margin-bottom:2rem;font-size:1.5rem;color:var(--c-text)}.circuit-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:2rem;align-items:start}@media(max-width:768px){.circuit-layout{grid-template-columns:1fr}}.card-box{background:var(--c-bg-card);border:1px solid var(--c-border);border-radius:var(--c-radius)}.circuit-board{display:flex;justify-content:center;align-items:center;background:#fff;width:100%}.svg-wrapper{max-width:500px}.svg-circuit{display:block;width:100%;height:auto;border-radius:8px}.dropzone{transition:all .3s ease;fill:#ffffff1a}.dropzone.state-idle{stroke:var(--c-text-light);stroke-dasharray:2;stroke-width:.5;animation:dash 20s linear infinite}.dropzone.state-pending{fill:#3b82f61a;stroke:var(--c-primary);stroke-width:1;stroke-dasharray:0}.dropzone.state-correct{fill:#10b98133;stroke:var(--c-success);stroke-width:1.5}.dropzone.state-incorrect{fill:#ef444433;stroke:var(--c-error);stroke-width:1.5}.drop-hint{font-size:6px;fill:var(--c-text-light);font-weight:700;pointer-events:none;opacity:.5}@keyframes dash{to{stroke-dashoffset:-100}}.components-panel{background:#f8fafc}.panel-label{margin:0 0 1rem;font-weight:600;font-size:.9rem;color:var(--c-text-light);text-transform:uppercase;letter-spacing:.05em}.components-list{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}.component-card{background:#fff;border:1px solid var(--c-border);border-radius:8px;padding:10px;width:90px;text-align:center;cursor:grab;transition:transform .2s,box-shadow .2s,border-color .2s}.component-card:hover{transform:translateY(-3px);box-shadow:0 4px 12px #00000014;border-color:var(--c-primary)}.component-card:active{cursor:grabbing}.component-card.is-selected{opacity:.6;filter:grayscale(100%);border-style:dashed}.component-img{width:100%;height:50px;object-fit:contain;margin-bottom:5px}.component-label{font-size:.75rem;font-weight:600;display:block;line-height:1.2}.verify-btn{width:100%;margin-top:1.5rem;padding:14px;border:none;border-radius:8px;font-size:1rem;font-weight:600;transition:all .2s}.verify-btn.btn-disabled{background-color:var(--c-border);color:var(--c-text-light);cursor:not-allowed}.verify-btn.btn-active{background-color:var(--c-primary);color:#fff;cursor:pointer;box-shadow:0 4px 6px #3b82f64d}.verify-btn.btn-active:hover{background-color:var(--c-primary-dark);transform:translateY(-1px)}.feedback-message{margin-top:1.5rem;padding:1rem;border-radius:8px;display:flex;gap:12px;align-items:flex-start;font-size:.95rem;animation:slideIn .3s ease-out}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.feedback-message.msg-success{background-color:#ecfdf5;border:1px solid #d1fae5;color:#065f46}.feedback-message.msg-error{background-color:#fef2f2;border:1px solid #fee2e2;color:#991b1b}.feedback-message .icon{font-size:1.4rem}.correct-preview-mini{margin-top:8px;background:#fff;padding:4px;border-radius:4px;border:1px solid rgba(0,0,0,.1);display:inline-block}.correct-preview-mini img{height:30px;display:block}.final-results-container{max-width:800px;margin:50px auto;padding:20px;background:#f7f7f7;color:#000;border-radius:10px;box-shadow:0 4px 10px #0000001a;display:flex;flex-direction:column;justify-content:center;align-items:center}.final-title{text-align:center;font-size:2rem;margin-bottom:10px}.score-level{text-align:center;margin-bottom:30px}.score,.level{font-size:1.2rem;margin:5px 0}.questions-feedback{margin-bottom:30px}.question-feedback{margin-bottom:20px}.options-list{list-style:none;padding:0}.option-item{padding:5px 10px;margin:3px 0;border-radius:5px}.correct{background-color:#d4edda;color:#155724;font-weight:700}.incorrect{background-color:#f8d7da;color:#721c24;font-weight:700}.feedback{margin-top:5px;font-style:italic}.exit-button{display:block;margin:0 auto;padding:10px 25px;font-size:1rem;border:none;border-radius:8px;cursor:pointer}.exit-button:hover{background-color:#0056b3}.circuit-feedback-box{background:#f9fafb;padding:12px;border-radius:10px;margin-top:10px}.circuit-row{display:flex;gap:20px;align-items:center}.circuit-img{width:100px;border:1px solid #ddd;border-radius:6px}.circuit-component-img{width:60px;border-radius:6px}.circuit-component-img.correct{border:3px solid #22c55e}.circuit-component-img.incorrect{border:3px solid #ef4444}.stages-page{width:90vw;padding:30px 30px 30px 100px}@media(max-width:768px){.stages-page{width:95vw;padding-bottom:100px;padding-left:10px;padding-right:10px}}.course-title{color:var(--primary-color)}.stages-list{display:flex;flex-direction:column;gap:14px}.stage-accordion{border:1px solid #e3e3e3;border-radius:10px;background:#fff;overflow:hidden;transition:border-color .2s ease}.stage-accordion[open]{border-color:var(--primary-color)}.stage-summary{padding:14px 16px;cursor:pointer;list-style:none;background:linear-gradient(135deg,#f0fbff,#fff);display:flex;align-items:center}.stage-summary::-webkit-details-marker{display:none}.summary-content{width:100%;display:flex;justify-content:space-between;align-items:center}.summary-left{display:flex;align-items:center;gap:12px}.stage-number{width:36px;height:36px;border-radius:8px;display:grid;place-items:center;background:#e6f6f8;color:var(--primary-color);font-weight:700;font-size:.9rem}.stage-title{margin:0;font-size:1rem;font-weight:600}.summary-arrow{font-size:16px;color:#777;transition:transform .2s ease}.stage-accordion[open] .summary-arrow{transform:rotate(90deg);color:var(--primary-color)}.stage-panel{padding:16px 18px;border-top:1px solid #eee}.stage-description{display:flex;align-items:center;gap:6px;color:#555;font-size:.95rem;margin-bottom:18px}.lessons-grid{display:grid;gap:12px}@media(min-width:600px){.lessons-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}}.lesson-card{display:flex;align-items:flex-start;gap:12px;padding:14px;border-radius:10px;border:1px solid #e5e5e5;background:#fff;transition:background .15s ease,border-color .15s ease;cursor:pointer}.lesson-card:hover{border-color:var(--primary-color);background:#f4fcfd}.lesson-card--completed{border-left:4px solid #4caf50}.lesson-card--current{border-left:4px solid var(--primary-color)}.lesson-card--locked{opacity:.55;cursor:not-allowed;border-left:4px solid #ccc}.lesson-left{flex-shrink:0}.lesson-icon{width:40px;height:40px;background:#e6f6f8;border-radius:8px;display:grid;place-items:center;color:var(--primary-color)}.lesson-main{flex:1}.lesson-title{margin:0;font-size:.95rem;font-weight:600}.lesson-desc{margin:6px 0;color:#666;font-size:.85rem}.lesson-footer{display:flex;gap:10px;flex-wrap:wrap;font-size:.8rem;color:#777}.status-label{font-weight:600}.status-completed{color:#4caf50}.status-current{color:var(--primary-color)}.lesson-right .lesson-arrow{font-size:20px;color:#888}.pb-wrapper{width:100%;display:flex;align-items:center;gap:12px;margin-bottom:10px}.pb-bg{flex:1;height:15px;background:#e6e6e6;border-radius:20px;overflow:hidden}.pb-fill{height:100%;background:linear-gradient(90deg,#4fa3ff,var(--primary-color));border-radius:inherit;transition:width .4s ease}.pb-label{font-weight:700;font-size:14px;width:40px;text-align:right}.start-button{font-size:1rem;font-weight:600;padding:.8rem 2rem;border:none;border-radius:1rem;cursor:pointer}body{margin:0;padding:0;background-color:#f0f4f8;font-family:Inter,sans-serif;display:flex;justify-content:center;align-items:center;min-height:100vh}.start-container{display:flex;justify-content:center;align-items:center;width:90%;max-width:600px}.start-card{background:#fff;border-radius:1.5rem;padding:2rem;text-align:center;box-shadow:0 6px 16px #0000001a;animation:fadeIn .5s ease}.start-title{font-size:1.8rem;margin-bottom:1rem;color:#1e293b}.start-text{color:#475569;font-size:1rem;margin-bottom:2rem;line-height:1.5}.start-button{color:#fff;font-size:1rem;font-weight:600;padding:.8rem 2rem;border:none;border-radius:1rem;cursor:pointer;transition:background .3s ease}.start-button:hover{background-color:#2563eb}@media(max-width:480px){.start-card{padding:1.5rem}.start-title{font-size:1.5rem}.start-text{font-size:.95rem}}.bottom-nav{background-color:#0097b3;display:flex;justify-content:space-around;align-items:center;padding:8px 0;position:fixed;height:70px;width:100%;bottom:0;left:0;z-index:1000}.nav-item{color:#fff;text-decoration:none;font-size:12px;display:flex;flex-direction:column;align-items:center;gap:4px}.nav-item .icon{font-size:24px}.nav-item.active{font-weight:700;text-decoration:underline}@media(min-width:768px){.bottom-nav{flex-direction:column;width:70px;height:100vh;top:0;bottom:auto;left:0;padding-top:20px}.nav-item{margin:20px 0}.nav-item .icon{font-size:26px}}.lesson-container{width:100vw;max-width:1024px;display:flex;justify-content:center;padding-left:70px}.lesson-article{margin-top:20px;margin-bottom:70px;width:100%;padding:20px;max-width:var(--max-width);color:var(--text-color);line-height:1.7;font-size:1rem;background-color:#fff;border-radius:20px}.lesson-header h1{font-size:2rem;color:var(--primary-color);margin-bottom:25px}.lesson-section{margin-bottom:20px}.lesson-title{color:#000;font-size:1.4rem;margin-bottom:8px}.lesson-paragraph{font-size:1rem;margin-bottom:10px}.lesson-list,.lesson-steps{padding-left:20px;margin-bottom:10px}.lesson-list li,.lesson-steps li{margin-bottom:6px}.lesson-image{margin:20px 0;text-align:center}.lesson-image img{width:auto;max-width:100%;max-height:600px;height:auto;border-radius:8px;object-fit:contain;display:block;margin:0 auto}.lesson-image figcaption{margin-top:8px;font-size:.9rem;color:#555}.lesson-video-container{position:relative;width:100%;padding-bottom:56.25%;height:0}.lesson-video-container iframe{position:absolute;top:0;left:0;width:100%;height:100%}.lesson-loading,.lesson-error{text-align:center;padding:40px;font-size:1.2rem}.finish-lesson-btn{width:200px}@media(max-width:768px){.lesson-container{padding-left:10px}.lesson-header h1{font-size:1.6rem}.lesson-title{font-size:1.2rem}.lesson-article{padding:15px}}.task-container{width:100%;max-width:1024px;display:flex;justify-content:center}.task-article{margin-top:20px;margin-bottom:70px;width:80%;padding:20px;max-width:var(--max-width);color:var(--text-color);line-height:1.7;font-size:1rem;background-color:#fff}.task-header h1{font-size:2rem;color:var(--primary-color);margin-bottom:25px}.task-section{margin-bottom:20px}.task-title{color:#000;font-size:1.4rem;margin-bottom:8px}.task-paragraph{font-size:1rem;margin-bottom:10px}.task-list,.task-steps{padding-left:20px;margin-bottom:10px}.task-list li,.task-steps li{margin-bottom:6px}.task-image{margin:20px 0;text-align:center}.task-image img{max-width:100%;border-radius:8px}.task-image figcaption{margin-top:8px;font-size:.9rem;color:#555}.task-video-container{position:relative;width:100%;padding-bottom:56.25%;height:0}.task-video-container iframe{position:absolute;top:0;left:0;width:100%;height:100%}.task-loading,.task-error{text-align:center;padding:40px;font-size:1.2rem}.finish-btn-container{width:100%;display:flex;justify-content:center}.finish-task-btn{width:200px}@media(max-width:600px){.task-header h1{font-size:1.6rem}.task-title{font-size:1.2rem}.task-article{padding:15px}}.landing-wrapper{--primary-color: #0097B2;--primary-dark: #007A91;--primary-light: #E0F7FA;--text-main: #222222;--text-secondary: #555555;--bg-light: #F9FAFB;--white: #FFFFFF;--border-color: #DDDDDD;--shadow: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--radius: 8px;--font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;font-family:var(--font-family);color:var(--text-main);background-color:var(--white);line-height:1.6;width:100%}.landing-wrapper *{box-sizing:border-box;margin:0;padding:0}.container{max-width:1200px;margin:0 auto;padding:0 20px}.btn{display:inline-block;padding:12px 24px;border-radius:var(--radius);font-weight:600;text-decoration:none;cursor:pointer;transition:all .3s ease;border:none;font-size:1rem}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-primary:hover{background-color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow)}.btn-outline{background-color:transparent;border:2px solid var(--primary-color);color:var(--primary-color)}.btn-outline:hover{background-color:var(--primary-light)}.badge{padding:4px 8px;border-radius:4px;font-size:.75rem;font-weight:700;text-transform:uppercase}.badge.easy{background-color:#d1fae5;color:#065f46}.badge.medium{background-color:#fef3c7;color:#92400e}.badge.hard{background-color:#fee2e2;color:#991b1b}.navbar{background-color:var(--white);box-shadow:0 2px 4px #0000000d;position:sticky;top:0;z-index:1000;height:70px;display:flex;align-items:center}.nav-content{display:flex;justify-content:space-between;align-items:center;width:100%}.nav-links{display:flex;gap:30px;align-items:center}.nav-links a{text-decoration:none;color:var(--text-secondary);font-weight:500;transition:color .2s}.nav-links a:hover{color:var(--primary-color)}.mobile-menu-btn{display:none;background:none;border:none;cursor:pointer;color:var(--text-main)}.hero{padding:80px 0;background:linear-gradient(135deg,var(--white) 50%,var(--bg-light) 50%);display:flex;align-items:center}.hero-content{display:flex;flex-wrap:wrap;align-items:center;gap:40px}.hero-text{flex:1;min-width:300px}.hero-label{display:inline-flex;align-items:center;gap:6px;background-color:var(--primary-light);color:var(--primary-dark);padding:6px 12px;border-radius:20px;font-size:.9rem;font-weight:600;margin-bottom:20px}.hero h1{font-size:3.5rem;line-height:1.1;margin-bottom:20px;color:var(--text-main)}.hero h1 span{color:var(--primary-color)}.hero p{font-size:1.25rem;color:var(--text-secondary);margin-bottom:30px;max-width:600px}.hero-buttons{display:flex;gap:15px;margin-bottom:20px}.hero-image{flex:1;display:flex;justify-content:center;position:relative;min-width:300px}.hero-card{background:var(--white);padding:20px;border-radius:var(--radius);box-shadow:0 20px 40px #0000001a;width:100%;max-width:450px;border-top:5px solid var(--primary-color)}.stats-bar{background-color:var(--bg-light);padding:40px 0;border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}.stats-grid{display:flex;justify-content:space-around;flex-wrap:wrap;gap:20px;text-align:center}.stat-item h3{font-size:2rem;color:var(--primary-color);margin-bottom:5px}.stat-item p{color:var(--text-secondary);font-weight:500}.syllabus{padding:80px 0}.section-title{text-align:center;margin-bottom:50px}.section-title h2{font-size:2.5rem;margin-bottom:15px}.syllabus-container{max-width:900px;margin:0 auto}.module-card{background:var(--white);border:1px solid var(--border-color);border-radius:var(--radius);margin-bottom:20px;overflow:hidden;transition:all .3s ease}.module-card:hover{border-color:var(--primary-color);box-shadow:var(--shadow)}.module-header{padding:20px 25px;background-color:var(--white);cursor:pointer;display:flex;justify-content:space-between;align-items:center}.module-info h3{font-size:1.25rem;margin-bottom:5px}.module-info span{color:var(--text-secondary);font-size:.9rem}.module-icon{color:var(--primary-color)}.lesson-list{background-color:var(--bg-light);border-top:1px solid var(--border-color)}.lesson-item{padding:15px 25px;border-bottom:1px solid #eeeeee;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}.lesson-item:last-child{border-bottom:none}.lesson-title{display:flex;align-items:center;gap:12px;font-weight:500;color:var(--text-main)}.lesson-meta{display:flex;align-items:center;gap:15px;font-size:.85rem;color:var(--text-secondary)}.register-section{background-color:#002b36;color:var(--white);padding:80px 0;text-align:center}.register-container{display:flex;flex-wrap:wrap;gap:50px;justify-content:center;align-items:center;text-align:left}.register-content{flex:1;min-width:300px;max-width:500px}.register-content h2{font-size:2.5rem;margin-bottom:20px}.benefit-list{list-style:none;margin-top:30px}.benefit-list li{display:flex;align-items:center;gap:10px;margin-bottom:15px;font-size:1.1rem}.register-form-card{background:var(--white);padding:30px;border-radius:var(--radius);width:100%;max-width:400px;color:var(--text-main)}.form-group{margin-bottom:20px}.form-group label{display:block;margin-bottom:8px;font-weight:600;font-size:.9rem}.form-group input{width:100%;padding:12px;border:1px solid var(--border-color);border-radius:4px;font-size:1rem;transition:border .2s}.form-group input:focus{outline:none;border-color:var(--primary-color)}.footer{background-color:#f1f1f1;padding:40px 0;text-align:center;color:var(--text-secondary);font-size:.9rem}@media(max-width:768px){.mobile-menu-btn{display:block;z-index:1001}.nav-links{display:flex;position:fixed;top:0;left:0;width:100%;height:100vh;background-color:var(--white);flex-direction:column;align-items:center;justify-content:center;gap:40px;transform:translate(100%);transition:transform .3s ease-in-out;z-index:1000;padding:20px}.nav-links.active{transform:translate(0);box-shadow:-5px 0 15px #0000001a}.nav-links a{font-size:1.5rem;width:100%;text-align:center;padding:10px}.nav-links .btn{width:80%}.hero h1{font-size:2.5rem}.hero-content{flex-direction:column-reverse}.hero-buttons{flex-direction:column;width:100%}.hero-buttons .btn{width:100%;text-align:center}.stats-grid{flex-direction:column;gap:30px}.lesson-item{flex-direction:column;align-items:flex-start}.lesson-meta{width:100%;justify-content:space-between;margin-top:5px}.register-container{flex-direction:column}.register-content{text-align:center}.benefit-list li{justify-content:center}}.certificate-wrapper{min-height:100vh;padding:20px;display:flex;justify-content:center;align-items:center;flex-direction:column}.certificate-container{background-color:var(--bg-paper);width:100%;max-width:1100px;aspect-ratio:1.414 / 1;position:relative;padding:15px;box-shadow:0 15px 35px #00000026;border-radius:4px;display:flex;flex-direction:column}.certificate-border{border:8px solid var(--primary-color);height:100%;width:100%;padding:5px;box-sizing:border-box}.certificate-inner-border{border:2px solid var(--gold-color);height:100%;width:100%;padding:40px;box-sizing:border-box;position:relative;text-align:center;background-image:radial-gradient(circle at center,rgba(0,151,178,.03) 0%,transparent 60%),repeating-linear-gradient(45deg,rgba(0,0,0,.01) 0px,rgba(0,0,0,.01) 2px,transparent 2px,transparent 10px);display:flex;flex-direction:column;justify-content:space-between}.corner{position:absolute;width:40px;height:40px;border-style:solid;border-color:var(--primary-color);z-index:1}.tl{top:-4px;left:-4px;border-width:6px 0 0 6px}.tr{top:-4px;right:-4px;border-width:6px 6px 0 0}.bl{bottom:-4px;left:-4px;border-width:0 0 6px 6px}.br{bottom:-4px;right:-4px;border-width:0 6px 6px 0}.cert-header{margin-bottom:20px}.brand-logo-container{margin-bottom:20px;display:flex;justify-content:center}.brand-logo-container svg,.brand-logo-container img{height:60px;width:auto}.cert-title{font-family:var(--font-serif);font-size:3.5rem;color:var(--primary-color);text-transform:uppercase;letter-spacing:4px;margin:0;line-height:1;text-shadow:1px 1px 0px rgba(0,0,0,.1)}.cert-body{flex-grow:1;display:flex;flex-direction:column;justify-content:center}.cert-present{font-family:var(--font-serif);font-style:italic;color:var(--text-grey);font-size:1.2rem;margin-bottom:25px}.student-name{font-family:"Great Vibes",cursive,var(--font-serif);font-size:3.5rem;color:var(--text-dark);border-bottom:1px solid #ddd;display:inline-block;padding:0 40px 10px;margin:0 auto 30px;min-width:60%;font-weight:400}.course-intro{font-size:1.1rem;color:var(--text-grey);margin-bottom:10px}.course-title{color:var(--primary-color);font-weight:800;font-size:2rem;margin:0 0 15px;text-transform:uppercase}.hours-badge{display:inline-flex;align-items:center;gap:8px;background-color:#0097b214;color:var(--primary-color);padding:8px 20px;border-radius:50px;font-weight:600;font-size:1rem;border:1px solid rgba(0,151,178,.2)}.cert-footer{margin-top:40px;display:flex;justify-content:space-between;align-items:flex-end;padding:0 40px}.footer-left{text-align:left;font-size:.85rem;color:var(--text-grey)}.signatures-container{display:flex;gap:60px}.signature-block{text-align:center;min-width:200px}.sign-img{font-family:Brush Script MT,cursive;font-size:1.8rem;color:var(--text-dark);display:block;height:40px;margin-bottom:5px}.signature-line{border-top:1px solid var(--text-grey);width:100%;margin:5px auto}.director-name{font-weight:700;font-size:.95rem;color:var(--text-dark);display:block}.director-title{font-size:.8rem;color:var(--primary-color);text-transform:uppercase;letter-spacing:1px;font-weight:600}.action-buttons{margin-top:30px;display:flex;gap:15px}.btn{padding:12px 25px;border-radius:8px;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:8px;transition:all .2s;border:none;font-size:1rem}.btn-print{background-color:var(--primary-color);color:#fff}.btn-print:hover{background-color:#007c91}.seal-bg{position:absolute;bottom:20px;left:50%;transform:translate(-50%);opacity:.05;pointer-events:none;color:var(--primary-color)}@media(max-width:768px){.certificate-container{aspect-ratio:auto;height:auto;padding:10px}.certificate-inner-border{padding:20px 10px}.cert-title{font-size:2rem}.student-name{font-size:2.2rem;padding:0 10px 5px;width:100%}.course-title{font-size:1.5rem}.cert-footer{flex-direction:column;align-items:center;gap:30px;padding:0}.signatures-container{flex-direction:column;gap:30px}.footer-left{text-align:center;order:2}}@media print{@page{size:landscape;margin:0}body{-webkit-print-color-adjust:exact;print-color-adjust:exact;margin:0;padding:0}.certificate-wrapper{background:none;padding:0;display:block;height:100vh;width:100vw}.certificate-container{box-shadow:none;max-width:100%;width:100%;height:100%;aspect-ratio:auto;border-radius:0;page-break-inside:avoid}.certificate-border{border-width:5px}.action-buttons{display:none!important}}.tasks-page{width:100vw;padding-left:100px;padding-right:30px}@media(max-width:768px){.tasks-page{padding-left:20px;padding-right:20px;padding-bottom:10px}}.page-header{margin-bottom:30px;text-align:center}.page-title{color:#333;font-size:1.8rem;margin-bottom:8px}.page-subtitle{color:#666;font-size:1rem}.tasks-list{display:flex;flex-direction:column;gap:16px}.task-card{display:flex;align-items:center;background:#fff;border:1px solid #e0e0e0;border-radius:12px;padding:20px;transition:all .2s ease;cursor:pointer;position:relative;overflow:hidden}.task-card:hover{transform:translateY(-3px);box-shadow:0 4px 12px #00000014;border-color:var(--primary-color)}.task-card.completed{border-left:6px solid #4caf50}.task-card.completed .status-icon{background:#e8f5e9;color:#4caf50}.task-card.current{border-left:6px solid var(--primary-color);background:#f4fcfd}.task-card.current .status-icon{background:#fff;color:var(--primary-color);box-shadow:0 0 0 2px var(--primary-color)}.task-card.locked{border-left:6px solid #ccc;background:#f9f9f9;opacity:.7;cursor:not-allowed}.task-card.locked:hover{transform:none;box-shadow:none;border-color:#e0e0e0}.task-card.locked .status-icon{background:#eee;color:#999}.status-icon{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;font-size:1.2rem;margin-right:20px;flex-shrink:0}.task-info{flex:1}.task-title{margin:0 0 4px;font-size:1.1rem;font-weight:600;color:#333}.task-desc{margin:0;font-size:.9rem;color:#666}.arrow-icon{color:#ccc;font-size:1.2rem;margin-left:15px}.task-card:not(.locked):hover .arrow-icon{color:var(--primary-color)}.fexam-page{min-height:80vh;display:flex;justify-content:center;align-items:center;background-color:var(--bg);padding:20px}.fexam-card{background:#fff;width:100%;max-width:600px;border-radius:20px;box-shadow:0 10px 30px #00000014;overflow:hidden;text-align:center;border:1px solid #eee;transition:transform .3s ease}.fexam-header{background:linear-gradient(135deg,#f0fbff,#fff);padding:40px 30px 20px;border-bottom:1px solid #f0f0f0}.fexam-icon-wrapper{width:80px;height:80px;margin:0 auto 20px;background:#fff;border-radius:50%;display:grid;place-items:center;font-size:2.5rem;box-shadow:0 5px 15px #0097b226;color:var(--primary-color)}.fexam-title{margin:0;color:#333;font-size:1.8rem;font-weight:700}.fexam-subtitle{margin-top:8px;color:#666;font-size:1rem}.fexam-body{padding:30px}.fexam-features{display:flex;justify-content:center;gap:20px;margin-bottom:30px;flex-wrap:wrap}.feature-item{display:flex;align-items:center;gap:8px;color:#555;font-size:.9rem;background:#f9f9f9;padding:8px 15px;border-radius:30px}.fexam-instructions{color:#666;line-height:1.6;margin-bottom:30px;font-size:.95rem;max-width:480px;margin-left:auto;margin-right:auto}.buttons-finalexam-container{display:flex;flex-direction:column;gap:20px}.action-btn{background:var(--primary-color);color:#fff;border:none;padding:15px 40px;font-size:1.1rem;font-weight:600;border-radius:50px;cursor:pointer;transition:all .2s ease;display:inline-flex;align-items:center;gap:10px}.action-btn:hover{background:#008ba3;color:#fff}.locked-message{background:#fff3e0;border:1px solid #ffe0b2;color:#e65100;padding:15px;border-radius:10px;display:inline-flex;align-items:center;gap:10px;font-size:.9rem;font-weight:500}.locked-icon{font-size:1.2rem}.score-container{animation:fadeIn .5s ease-out}.score-circle{width:120px;height:120px;border-radius:50%;border:8px solid var(--success-color);margin:0 auto 20px;display:flex;flex-direction:column;justify-content:center;align-items:center;color:var(--success-color)}.score-number{font-size:2.5rem;font-weight:800;line-height:1}.score-label{font-size:.8rem;text-transform:uppercase;letter-spacing:1px}.score-msg{font-size:1.2rem;color:#333;font-weight:600}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}