:root{--primary: #0077B6;--secondary: #00B4D8;--tertiary-accent: #00A89A;--warning-course: #FFC107;--light-bg: #FFFFFF;--soft-bg: #F7FBFF;--card-bg: #FFFFFF;--dark-text: #1a1a1a;--text-muted: #555555;--font-family-primary: "Montserrat", sans-serif;--font-family-secondary: "Roboto", sans-serif}body{font-family:var(--font-family-secondary);font-size:1.05rem;background-color:var(--soft-bg);color:var(--dark-text);overflow-x:hidden;transition:color .3s ease,background-color .3s ease}:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;min-width:320px;min-height:100vh}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}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media(prefers-color-scheme:light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.top-info{font-size:.9rem;border-bottom:1px solid #e0e0e0}.top-info-link{color:#6c757d;text-decoration:none}.top-info-link:hover{text-decoration:underline}.navbar .btn-primary{background-color:#007fff;border:none;transition:background-color .3s ease}.navbar .btn-primary:hover{background-color:#005fcc}footer{font-size:.85rem;background-color:#f1f1f1}.hero-section-bg{background-image:url(../img/home_page_slider_wide.png);background-size:cover;background-position:center;background-repeat:no-repeat;padding-top:6rem;padding-bottom:4rem}.bg-card{background-color:var(--card-bg)!important;color:var(--dark-text)!important;box-shadow:0 10px 30px #00000014!important;border:1px solid rgba(0,0,0,.05)!important;transition:transform .3s ease,box-shadow .3s ease}.bg-card:hover{transform:translateY(-5px);box-shadow:0 15px 40px #00000026!important}.cta-button-gradient{background:linear-gradient(90deg,var(--warning-course) 0%,#ff8a00 50%,var(--warning-course) 100%)!important;background-size:200% auto;color:var(--dark-text)!important;border:none;box-shadow:0 0 20px #ffc10799;transition:background-position .5s ease,box-shadow .3s ease,transform .3s ease}.cta-button-gradient:hover{background-position:right center!important;box-shadow:0 0 30px #ffc107;transform:scale(1.02)}.btn-outline-info{color:var(--primary)!important;border-color:var(--primary)!important;transition:all .3s ease}.btn-outline-info:hover{background-color:var(--primary)!important;color:var(--light-bg)!important;box-shadow:0 4px 12px #0077b666}.hero-section-bg img{transition:transform .3s ease}.hero-section-bg img:hover{transform:scale(1.02)}h1,h2,h3,h4,h5,.fw-bold{font-family:var(--font-family-primary);font-weight:700!important;color:var(--dark-text)}.hero-section-bg{background-color:#f8f9fa}.bg-card{background-color:#fff}.cta-button-gradient{background:linear-gradient(90deg,#1e90ff,#00bfff);color:#fff;border:none}.text-primary-ionnova{color:#1e90ff}.container{width:100%;margin-left:auto;margin-right:auto;padding-left:1rem;padding-right:1rem;max-width:1140px}.row{display:flex;flex-wrap:wrap}.col-lg-6{width:100%;padding-left:1rem;padding-right:1rem}@media(min-width:1024px){.col-lg-6{flex:0 0 auto;width:50%}.text-lg-start{text-align:left}}.lesson-link{color:#0d6efd;text-decoration:none;font-weight:500}.lesson-link:hover{text-decoration:underline}.lesson-icon{font-size:1.2rem}.topic-content{max-width:1000px;margin:0 auto;padding:0;background:#fdfdfd;border-radius:8px;box-shadow:0 4px 12px #0000000d}.topic-banner{background:linear-gradient(135deg,#eef2f7,#dfe6ed);padding:2.5rem;box-shadow:inset 0 0 .5rem #00000008;margin-bottom:2rem;margin-left:0;margin-right:0}.topic-title{font-size:4rem;font-weight:700;color:#1a2b4c;margin-bottom:1rem;text-align:center;letter-spacing:-.5px}.topic-description{font-size:1.15rem;color:#4a5a6a;line-height:1.7;text-align:left;max-width:800px;margin:0 auto}.lesson-list{padding-left:0}.list-group-item{background-color:#fff;border:1px solid #e3e8ee;border-radius:6px;margin-bottom:1rem;margin-left:2rem;margin-right:2rem;padding:1.25rem;box-shadow:0 2px 6px #00000008;transition:box-shadow .2s ease}.list-group-item:hover{box-shadow:0 4px 12px #0000000f}.lesson-title{font-size:1.4rem;font-weight:600;color:#007fff;display:flex;align-items:center;margin-bottom:.5rem}.lesson-title a{color:#007fff;text-decoration:none}.lesson-title a:hover{text-decoration:underline}.list-group-item p{font-size:1rem;color:#6c757d;margin-left:2rem;margin-bottom:0}@media(max-width:576px){.container{padding-left:0!important;padding-right:0!important}.topic-content{max-width:100%!important;padding:0;margin:0;box-shadow:none;border-radius:0}.topic-banner{padding:1rem;border-radius:0;margin-bottom:1.5rem}.topic-title{font-size:2rem}.topic-description{font-size:1rem;line-height:1.5;margin:0;max-width:100%;padding:0 1rem}.lesson-title{font-size:1.2rem;flex-direction:column;align-items:flex-start}.list-group-item{border-left:none;border-right:none;border-radius:0}.list-group-item p{margin-left:0;text-align:left}}.markdown-body table{width:100%;table-layout:fixed;border-collapse:collapse}.markdown-body th,.markdown-body td{padding:.75rem;text-align:left;word-break:break-word}.markdown-body p>img{display:block;margin-left:auto;margin-right:auto;max-width:100%;height:auto}.markdown-body iframe{width:100%;height:400px;border-radius:8px;margin:1rem 0}.markdown-body img{max-width:100%;height:auto;border-radius:8px;margin:1rem 0}.markdown-body h2,.markdown-body h3{color:#2c3e50;margin-top:2rem;border-bottom:1px solid #ddd;padding-bottom:.3rem}.lesson-section{padding:15px;margin-bottom:20px;border-radius:8px}.key-action{background-color:#f0f8ff;border-left:5px solid #007185;padding:15px;margin:15px 0;font-size:1.1em}.important-note{background-color:#fffacd;border:1px solid #ffcc00;padding:10px;margin:10px 0;border-radius:5px;font-weight:700;color:#333}.highlight{color:#c45500;font-weight:700}.custom-key-action{background-color:#f0f8ff;border-left:5px solid #007185;padding:15px;margin:15px 0;border-radius:8px}.custom-important-note{background-color:#fffacd;border-left:5px solid #ffcc00;padding:15px;margin:15px 0;border-radius:8px;font-weight:700}.video-container{position:relative;width:100%;padding-bottom:56.25%;height:0;overflow:hidden;margin-bottom:20px}.video-container iframe{position:absolute;top:0;left:0;width:100%;height:100%}img{max-width:100%;height:auto}.video-container-wrapper{max-width:100%;margin:0 auto;padding:0}@media(max-width:991.98px){.video-container-wrapper{max-width:100%}}@media(max-width:575.98px){.video-container-wrapper{max-width:100%;margin:0;padding:0 1rem}}.responsive-video-box{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:8px;box-shadow:0 4px 12px #00000026;background-color:#fff}.responsive-video-box iframe{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:100%;height:100%;border:none}.iframe-container-wrapper{display:flex;justify-content:center}.responsive-iframe-box iframe{max-width:100%;border-radius:8px;box-shadow:0 0 12px #0000001a}table{width:100%;border-collapse:collapse;margin:1rem 0}th,td{border:1px solid #ccc;padding:.75rem;text-align:left}th{background-color:#f0f0f0}