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span{color:var(--rb-black);font-weight:500}.glow-effect,.hero-label{display:none}.hero-title{font-family:"DM Sans",var(--font-google);font-size:3.5rem;line-height:1.2;font-weight:700;color:var(--rb-black);letter-spacing:-.02em;margin:0;margin-bottom:1.5rem}.hero-text{font-family:"DM Sans",var(--font-google);font-size:1.25rem;line-height:1.75;color:var(--rb-gray-500);max-width:700px;margin-bottom:2rem;font-weight:400}.hero-actions{display:flex;gap:1.5rem;justify-content:center;margin-bottom:1.5rem}.hero-link{color:var(--rb-primary);font-size:1rem;font-weight:500;text-decoration:none;display:inline-flex;align-items:center;gap:.5rem;font-family:"DM Sans",var(--font-google);cursor:pointer;background:none;border:none;padding:0}.hero-link:hover{text-decoration:underline}.scroll-indicator{margin-top:1rem;color:var(--rb-primary);animation:bounce 2s infinite}@keyframes bounce{0%,20%,50%,80%,to{transform:translateY(0)}40%{transform:translateY(-8px)}60%{transform:translateY(-4px)}}.hero-gradient-section{position:relative;padding:0 2rem 6rem;margin-top:3rem}.gradient-background{position:absolute;inset:0;background:linear-gradient(135deg,#35a758,#2d8e4a,#31b6b3,#35a758,#2d8e4a);background-size:400% 400%;animation:gradientShift 15s ease infinite;z-index:0}@keyframes gradientShift{0%{background-position:0% 50%}50%{background-position:100% 50%}to{background-position:0% 50%}}.gradient-shapes{position:absolute;inset:0;overflow:hidden;z-index:1}.shape{position:absolute;background:#ffffff1a}.shape-1{bottom:0;left:0;width:40%;height:60%;background:#34a853;clip-path:polygon(0 60%,100% 100%,0 100%)}.shape-2{bottom:0;right:0;width:40%;height:60%;background:#34a853;clip-path:polygon(100% 60%,100% 100%,0 100%)}.hero-visual{position:relative;z-index:10;max-width:1100px;margin:0 auto;padding:0 2rem}.laptop-frame{background:#1a1a1a;border-radius:12px 12px 0 0;padding:8px 8px 0;box-shadow:0 50px 100px -20px #00000080}.laptop-camera{width:8px;height:8px;background:#333;border-radius:50%;margin:0 auto 8px}.laptop-screen{background:var(--rb-white);border-radius:8px 8px 0 0;overflow:hidden;aspect-ratio:16/10}.laptop-screen img,.laptop-screen .screen-placeholder{width:100%;height:100%;object-fit:cover}.screen-placeholder{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;font-weight:500;font-size:1.25rem}.laptop-base{background:linear-gradient(to bottom,#2a2a2a,#1a1a1a);height:16px;border-radius:0 0 4px 4px;position:relative}.laptop-base:before{content:"";position:absolute;top:0;left:50%;transform:translate(-50%);width:25%;height:4px;background:#3a3a3a;border-radius:0 0 4px 4px}.hero-img{width:100%;height:auto;display:block}.ai-chat-popup{position:absolute;bottom:80px;right:-40px;background:var(--rb-white);border-radius:12px;box-shadow:0 8px 32px #00000026;padding:1.25rem;max-width:320px;z-index:20;animation:fadeInUp .6s ease .5s both}.ai-chat-header{display:flex;align-items:center;gap:.5rem;margin-bottom:.75rem;color:var(--rb-primary);font-weight:600;font-size:.9rem;font-family:"DM Sans",var(--font-google)}.ai-chat-header svg{width:18px;height:18px}.ai-chat-text{color:var(--rb-gray-700);font-size:.9rem;line-height:1.5}.logos-section{padding:4rem 0;text-align:center;background:var(--rb-white);overflow:hidden}.logos-title{font-size:.875rem;color:var(--rb-gray-500);font-weight:500;margin-bottom:3rem;letter-spacing:.1em}.logo-carousel{width:100%;position:relative;overflow:hidden;padding:1rem 0;mask-image:linear-gradient(to right,transparent,black 10%,black 90%,transparent);-webkit-mask-image:linear-gradient(to right,transparent,black 10%,black 90%,transparent)}.logo-track{display:flex;align-items:center;gap:5rem;width:max-content;animation:scroll 40s linear infinite}.logo-track:hover{animation-play-state:paused}.logo-item{height:40px;width:auto;object-fit:contain;opacity:.6;transition:all .3s ease;filter:grayscale(100%)}.logo-item:hover{opacity:1;filter:grayscale(0%);transform:scale(1.05)}@keyframes scroll{0%{transform:translate(0)}to{transform:translate(-50%)}}.features-section{padding:6rem 2rem;max-width:1200px;margin:0 auto}.features-section .section-header{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:700px;margin:0 auto 4rem}.section-header{margin-bottom:4rem;text-align:center;max-width:700px;margin-left:auto;margin-right:auto}.section-label{display:inline-block;color:var(--rb-primary);font-weight:500;font-size:.875rem;letter-spacing:.05em;margin-bottom:1rem}.section-title{font-family:"DM 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auto}.security-card{background:var(--rb-gray-50);border:1px solid var(--rb-border);border-radius:12px;padding:2.5rem;display:flex;flex-direction:column}.security-icon-label{color:var(--rb-primary);font-weight:500;font-size:.875rem;margin-bottom:1rem;display:flex;align-items:center;gap:.5rem}.security-title{font-family:"DM Sans",var(--font-google);font-size:1.75rem;font-weight:600;margin-bottom:1rem;letter-spacing:-.01em}.security-desc{color:var(--rb-gray-500);line-height:1.6;margin-bottom:2rem}.automation-section{padding:6rem 2rem;background:var(--rb-gray-50)}.automation-section .section-header{display:flex;flex-direction:column;align-items:center;text-align:center;max-width:700px;margin:0 auto 4rem}.automation-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;max-width:1200px;margin:0 auto}.automation-item{text-align:center;display:flex;flex-direction:column;align-items:center;padding:2rem;background:var(--rb-white);border-radius:12px;border:1px solid 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#35a7581a}.impact-header{display:flex;align-items:center;gap:1rem;margin-bottom:1rem}.impact-icon{width:44px;height:44px;border-radius:8px;background:#35a7581a;display:flex;align-items:center;justify-content:center;color:var(--rb-primary)}.impact-title{font-family:"DM Sans",var(--font-google);font-size:1.125rem;font-weight:600}.final-cta-section{padding:8rem 2rem;background:linear-gradient(135deg,#35a7581a,#f8f9fa);text-align:center}.final-cta-title{font-family:"DM Sans",var(--font-google);font-size:3rem;font-weight:700;margin-bottom:1rem;letter-spacing:-.02em;color:var(--rb-black)}@media (max-width: 1024px){.bento-grid{grid-template-columns:repeat(2,1fr)}.security-grid,.automation-grid,.metrics-grid,.impact-grid{grid-template-columns:1fr}.workflow-step{grid-template-columns:60px 1fr;gap:2rem}.step-visual{grid-column:1 / -1;margin-top:2rem}}@media (max-width: 768px){.hero-title{font-size:2.25rem}.hero-text{font-size:1rem}.hero-actions{flex-direction:column;gap:1rem}.bento-grid{grid-template-columns:1fr}.span-2{grid-column:span 1}.section-title{font-size:1.75rem}.laptop-frame{border-radius:8px 8px 0 0}.ai-chat-popup{display:none}.metrics-grid{grid-template-columns:repeat(2,1fr)}.animated-workflow-section{padding:4rem 1rem}.workflow-container{gap:4rem}.workflow-step{grid-template-columns:1fr;gap:1.5rem;text-align:center}.step-number{flex-direction:row;justify-content:center;gap:1rem}.step-line{height:2px;width:80px}.step-title{font-size:1.5rem}.step-description{font-size:1rem}.step-visual{margin-top:1rem}.visual-placeholder{height:200px;padding:1rem}}:root{--google-blue: #4285f4;--google-red: #ea4335;--google-yellow: #fbbc05;--google-green: #34a853;--rb-black: #272343;--rb-white: #ffffff;--rb-gray-50: #f8f9fa;--rb-gray-100: #f0f2f3;--rb-gray-200: #e1e3e5;--rb-gray-300: #dadce0;--rb-gray-500: #9a9caa;--rb-gray-700: #3c4043;--rb-gray-900: #202124;--rb-blue: #1a73e8;--rb-primary: #35a758;--rb-primary-hover: #2d8e4a;--font-google: "DM Sans", "Google Sans", "Roboto", sans-serif;--font-roboto: "Roboto", sans-serif}.lesson-gallery-page{width:100%;overflow-x:hidden;position:relative;background-color:var(--rb-white);color:var(--rb-black);font-family:var(--font-google);padding-top:70px;min-height:100vh;display:flex;flex-direction:column}.gallery-hero-new{position:relative;background-color:#fde072;overflow:hidden;padding:4rem 2rem;height:558px;display:flex;justify-content:center;align-items:center}.hero-bg-accent{position:absolute;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none}.hero-decoration-circle{position:absolute;width:69px;height:81px;left:332px;top:52px;background:#ffef78;border-radius:50%;transform:rotate(114deg)}.hero-decoration-star-yellow{position:absolute;width:130px;height:130px;right:15%;top:25%;background-image:url("data:image/svg+xml,%3Csvg width='130' height='131' viewBox='0 0 130 131' 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40px;position:relative;display:flex;flex-direction:column;gap:24px}.featured-header{display:flex;justify-content:space-between;align-items:center}.featured-title{font-size:32px;font-weight:600;color:var(--rb-black)}.featured-nav-buttons{display:flex;gap:12px}.nav-btn-circle{width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;transition:all .2s;font-size:0}.nav-btn-circle.disabled{background:#fafafa;border:1px solid #f0f2f3;color:#adafb8;cursor:default;opacity:1}.nav-btn-circle.active{background:#35a758;color:#fff;border:none;box-shadow:0 4px 12px #35a75833}.nav-btn-circle.active:hover{background:#2d8e4a;transform:translateY(-1px)}.featured-viewport{width:100%;overflow:hidden;position:relative;padding:10px 0;margin:-10px 0}.featured-cards-slider{display:flex;gap:24px;width:300%}.featured-cards-slider.infinite-scroll{animation:infiniteScroll 25s linear infinite}@keyframes infiniteScroll{0%{transform:translate(0)}to{transform:translate(-33.33%)}}.featured-card-wrapper{flex-shrink:0;width:340px}@media (max-width: 1024px){.featured-card-wrapper{width:320px}}@media (max-width: 768px){.featured-card-wrapper{width:280px}.featured-cards-slider{gap:16px}}.gallery-content{max-width:1320px;margin:0 auto;padding:0 20px 100px;width:100%}.gallery-toolbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:40px;flex-wrap:wrap;gap:20px;padding-top:20px}.toolbar-left{display:flex;align-items:center;gap:24px;flex:1}.filter-btn{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border:1px solid var(--rb-gray-200);border-radius:10px;background:#fff;cursor:pointer;flex-shrink:0;transition:all .2s ease}.filter-btn:hover{background:var(--rb-gray-50);border-color:var(--rb-gray-300)}.gallery-tabs{display:flex;align-items:center;gap:4px;flex-wrap:wrap;overflow-x:auto}.tab-item{padding:10px 20px;background:transparent;border:none;font-size:14px;font-weight:500;color:var(--rb-gray-500);cursor:pointer;border-bottom:2px solid transparent;white-space:nowrap;transition:all .2s ease;position:relative}.tab-item:hover{color:var(--rb-gray-700)}.tab-item.active{color:var(--rb-black);font-weight:600;box-shadow:0 2px #038053}.search-bar-wrapper{position:relative;width:413px;height:48px;flex-shrink:0}.search-input-field{width:100%;height:100%;border:1px solid var(--rb-gray-300);border-radius:10px;padding:0 50px 0 16px;font-size:14px;color:var(--rb-black);background:#fff;transition:all .2s ease;outline:none}.search-input-field:focus{border-color:var(--rb-primary);box-shadow:0 0 0 2px #35a7581a}.search-input-field::placeholder{color:var(--rb-gray-500)}.search-btn-icon{position:absolute;right:14px;top:50%;transform:translateY(-50%);background:transparent;border:none;cursor:pointer;width:24px;height:24px;border-radius:4px;padding:0;display:flex;align-items:center;justify-content:center;color:var(--rb-gray-700);transition:color .2s ease}.search-btn-icon:hover{color:var(--rb-primary)}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(380px,1fr));gap:24px}.gallery-card{background:var(--rb-white);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;position:relative;height:100%;box-shadow:0 1px 4px #0c0c0d0d;border:1px solid var(--rb-gray-200);transition:all .3s ease;padding:14px;gap:14px}.gallery-card:hover{box-shadow:0 4px 12px #0c0c0d1a}.card-thumbnail-wrapper{position:relative;width:100%;aspect-ratio:4/3;background:var(--rb-gray-100);border-radius:6px;overflow:hidden;background-size:cover;background-position:center}.card-thumbnail{width:100%;height:100%;object-fit:cover}.card-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center}.card-overlay-top{position:absolute;top:12px;left:12px;right:12px;display:flex;justify-content:space-between;align-items:flex-start;pointer-events:none}.card-badge-sooup{background:#ff8d28;color:#fff;padding:6px 10px;border-radius:4px;font-size:13px;font-weight:500}.card-body{display:flex;flex-direction:column;gap:10px}.card-tags{display:flex;gap:10px}.tag{padding:6px 10px;border-radius:18px;font-size:11px;font-weight:500;border:1px solid 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40px;border-radius:12px;font-size:18px;font-weight:600;pointer-events:none;z-index:1501}.capture-selection{position:absolute;border:1px solid #ffffff;background:transparent;box-shadow:0 0 0 9999px #00000080;pointer-events:none;z-index:1502}@media (max-width: 768px){.ai-tutor-toggle{padding:10px 16px;bottom:20px;left:20px}.ai-tutor-toggle.sidebar-collapsed{left:20px}.ai-tutor-panel{bottom:86px;left:20px;width:calc(100vw - 40px);height:calc(100vh - 126px)}.ai-tutor-panel.sidebar-collapsed{left:20px}.message-content{max-width:85%}.captured-preview img{max-height:80px}.page-modal{max-width:100%;max-height:400px;border-radius:20px 20px 0 0}.page-modal-grid{padding:16px}.page-modal-header{padding:24px 20px 16px}.page-modal-header h3{font-size:20px}.page-modal-footer{padding:16px 20px}}.quiz-action-container{display:flex;position:relative;flex:1;align-items:stretch}.quick-action-btn.quiz.main{border-top-right-radius:0;border-bottom-right-radius:0;border-right:1px solid rgba(233,75,60,.3);flex:1}.quick-action-btn.quiz.trigger{border-top-left-radius:0;border-bottom-left-radius:0;padding:0 4px;flex:0 0 28px;justify-content:center}.quick-action-btn.quiz.trigger:hover:not(:disabled){background:#e94b3c;color:#fff}.quiz-type-dropdown-menu{position:absolute;bottom:calc(100% + 10px);right:0;background:#fff;border:1px solid #e0e0e0;border-radius:12px;box-shadow:0 8px 24px #00000026;padding:6px;display:flex;flex-direction:column;gap:2px;min-width:150px;z-index:2000;animation:slideUpFade .2s cubic-bezier(.4,0,.2,1);transform-origin:bottom right}.quiz-type-item{padding:10px 12px;border:none;background:transparent;text-align:left;border-radius:8px;cursor:pointer;font-size:13px;color:#333;font-weight:500;transition:all .2s;display:flex;align-items:center;justify-content:space-between}.quiz-type-item:hover{background:#f5f5f5;color:#000}.quiz-type-item.selected{background:#fff0f0;color:#e94b3c;font-weight:600}@keyframes slideUpFade{0%{opacity:0;transform:translateY(10px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.message,.message-content{position:relative}.message-actions{position:absolute;bottom:6px;right:8px;display:flex;align-items:center;gap:4px}.message.user .builder-copy-btn{color:#ccc;background:transparent;border:none;padding:4px;border-radius:4px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s}.message.user .builder-copy-btn:hover{color:#fff}.send-btn.stop{background:#f5f5f5;color:#333;border:1px solid #e0e0e0}.send-btn.stop:hover{background:#e0e0e0}.visual-showcase-panel{flex:1;background:#f0f4f9;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}.scroll-wrapper{display:flex;gap:1.5rem;height:120vh;transform:rotate(-5deg) scale(1.1);width:100%;max-width:800px;justify-content:center}.scroll-column{display:flex;flex-direction:column;gap:1.5rem;width:50%}.scroll-up{animation:scrollUp 40s linear infinite}.scroll-down{animation:scrollDown 45s linear infinite;margin-top:-50%}@keyframes scrollUp{0%{transform:translateY(0)}to{transform:translateY(-50%)}}@keyframes scrollDown{0%{transform:translateY(-50%)}to{transform:translateY(0)}}.showcase-item{border-radius:12px;overflow:hidden;box-shadow:0 4px 12px #00000014;background:var(--rb-white);flex-shrink:0;width:100%;border:1px solid var(--rb-gray-200)}.showcase-item img{display:block;width:100%;height:auto;min-height:200px;object-fit:cover}.overlay-gradient{position:absolute;inset:0;background:linear-gradient(to top,#202124cc,#20212433 30%,#fff0);pointer-events:none}.feature-text{position:absolute;bottom:3rem;left:3rem;right:3rem;z-index:20;color:var(--rb-white);text-shadow:0 2px 4px rgba(0,0,0,.2);pointer-events:none}.feature-text h2{font-size:2.25rem;line-height:1.3;font-weight:500;letter-spacing:-.01em;font-family:var(--font-google)}@media (max-width: 900px){.visual-showcase-panel{display:none}}.upload-split-view{display:flex;width:100vw;height:100vh;overflow:hidden;background:var(--rb-white);font-family:var(--font-roboto)}.upload-full-container{width:100vw;min-height:100vh;background:var(--rb-gray-50);font-family:var(--font-roboto);overflow-y:auto;padding-bottom:4rem}.upload-header-full{background:#fff;height:60px;border-bottom:1px solid var(--rb-gray-200);display:flex;align-items:center;justify-content:center;position:relative;margin-bottom:2rem}.upload-left-panel{flex:1;max-width:50%;padding:2rem;display:flex;flex-direction:column;background:linear-gradient(135deg,#e8f0fe,#f8f9fa);z-index:10;overflow-y:auto}.back-button{background:none;justify-content:center;border:none;display:flex;align-items:center;gap:.5rem;font-size:.9rem;color:var(--rb-gray-700);cursor:pointer;padding:0;transition:color .2s;width:fit-content;font-family:var(--font-google)}.upload-content-wrapper{flex:1;max-width:560px;width:100%;margin:0 auto;display:flex;flex-direction:column;justify-content:center}.upload-header{text-align:center;margin-bottom:2.5rem}.upload-title{font-size:2.25rem;font-weight:400;color:var(--rb-black);margin-bottom:.75rem;letter-spacing:-.01em;font-family:var(--font-google)}.upload-subtitle{color:var(--rb-gray-500);font-size:1.1rem;line-height:1.6;font-weight:400;font-family:var(--font-roboto)}.upload-card-area{background:var(--rb-white);border:2px dashed var(--rb-gray-300);border-radius:12px;padding:40px;text-align:center;transition:all .2s cubic-bezier(.4,0,.2,1);cursor:pointer;margin-bottom:2rem}.upload-card-area:hover,.upload-card-area.dragging{border-color:var(--rb-blue);background:#f8faff;transform:translateY(-2px);box-shadow:0 4px 12px #4285f426}.upload-icon-large{color:var(--rb-blue);margin-bottom:1rem;opacity:1}.upload-instruction{font-size:1.1rem;font-weight:500;color:var(--rb-black);margin-bottom:.5rem;font-family:var(--font-google)}.upload-subtext{font-size:.9rem;color:var(--rb-gray-500)}#file-input{display:none}.recent-files-section{width:100%}.section-header{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem;color:var(--rb-gray-700);font-weight:500;font-size:.95rem;padding-left:.5rem;font-family:var(--font-google)}.recent-files-list{display:flex;flex-direction:column;gap:.75rem;max-height:240px;overflow-y:auto;padding:4px}.recent-files-list::-webkit-scrollbar{width:4px}.recent-files-list::-webkit-scrollbar-track{background:transparent}.recent-files-list::-webkit-scrollbar-thumb{background:var(--rb-gray-300);border-radius:4px}.file-item-card{background:var(--rb-white);border:1px solid var(--rb-gray-200);border-radius:8px;padding:1rem;display:flex;align-items:center;justify-content:space-between;transition:all .2s ease}.file-item-card:hover{transform:translateY(-1px);box-shadow:0 2px 6px #0000000d;border-color:var(--rb-gray-300);background:var(--rb-gray-50)}.file-info-group{display:flex;align-items:center;gap:1rem;flex:1;min-width:0}.file-icon-box{width:40px;height:40px;background:#e8f0fe;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--rb-blue)}.file-text-content{display:flex;flex-direction:column;gap:2px;min-width:0}.file-name-text{font-size:.95rem;font-weight:500;color:var(--rb-black);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-family:var(--font-roboto)}.file-date-text{font-size:.8rem;color:var(--rb-gray-500)}.file-actions-group{display:flex;gap:.5rem}.icon-btn{width:32px;height:32px;border-radius:50%;border:1px solid transparent;background:transparent;color:var(--rb-gray-500);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.icon-btn:hover{background:var(--rb-gray-100);color:var(--rb-black)}.icon-btn.delete:hover{background:#fce8e6;color:#d93025}.icon-btn.delete.disabled{opacity:.3;cursor:not-allowed;pointer-events:none}.card-actions{display:flex;gap:.25rem;margin-left:auto}.btn-open{background:var(--rb-blue);color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;font-size:.85rem;font-weight:500;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:.5rem;font-family:var(--font-google)}.btn-open:hover{background:var(--rb-blue-hover);box-shadow:0 1px 3px #0003;transform:translateY(-1px)}.delete-modal-overlay{position:fixed;inset:0;background:#20212499;backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:2000;animation:fadeIn .2s ease-out}.delete-modal{background:var(--rb-white);border-radius:8px;padding:24px;width:90%;max-width:400px;box-shadow:0 24px 38px 3px #00000024,0 9px 46px 8px #0000001f,0 11px 15px -7px #0003;animation:slideUp .3s cubic-bezier(.16,1,.3,1);text-align:center}.delete-modal-actions{margin-top:2rem;display:flex;gap:1rem;justify-content:center}.upload-section-top{padding:2rem 1rem;text-align:center;background:#fff;margin-bottom:2rem;box-shadow:0 1px 2px #0000000d}.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:2rem;margin-bottom:5rem}.gallery-card{background:var(--rb-white);border:1px solid var(--rb-gray-300);border-radius:12px;overflow:hidden;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;position:relative;height:100%;cursor:pointer}.gallery-card:hover{transform:translateY(-4px);box-shadow:0 12px 24px #0000001a;border-color:transparent}.card-thumbnail-wrapper{position:relative;aspect-ratio:16/9;background:var(--rb-gray-100);overflow:hidden;border-bottom:1px solid var(--rb-gray-100)}.card-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:var(--rb-white)}.card-body{padding:1.5rem;flex:1;display:flex;flex-direction:column}.card-title{font-family:var(--font-google);font-size:1.15rem;font-weight:400;color:var(--rb-black);margin-bottom:.75rem;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.gallery-card:hover .card-title{color:var(--rb-blue)}.card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--rb-gray-100);padding-top:1rem;font-size:.875rem;color:var(--rb-gray-500)}.meta-stats{display:flex;align-items:center;gap:1rem}.stat-item{display:flex;align-items:center;gap:.25rem;font-size:.8rem}.card-badge{position:absolute;top:.75rem;right:.75rem;background:var(--rb-blue);color:#fff;padding:.25rem .75rem;border-radius:20px;font-size:.75rem;font-weight:600;z-index:10;box-shadow:0 2px 6px #1a73e866;letter-spacing:.02em}@media (max-width: 900px){.upload-left-panel{max-width:100%}}.generation-toast{position:fixed;top:30px;left:50%;transform:translate(-50%) translateY(-100px);background:#fffffff2;backdrop-filter:blur(8px);color:#333;padding:12px 24px;border-radius:50px;display:flex;align-items:center;gap:16px;box-shadow:0 10px 25px -5px #0000001a,0 0 0 1px #fffc,0 0 20px #4a90e266,0 0 40px #4a90e233;z-index:2000;cursor:pointer;transition:all .4s cubic-bezier(.175,.885,.32,1.275);opacity:0;min-width:320px;border:1px solid rgba(255,255,255,.5)}.generation-toast.visible{transform:translate(-50%) translateY(0);opacity:1;animation:pulse-halo 3s infinite ease-in-out}@keyframes pulse-halo{0%{box-shadow:0 10px 25px -5px #0000001a,0 0 0 1px #fffc,0 0 20px #4a90e266,0 0 40px #4a90e233}50%{box-shadow:0 10px 30px -5px #00000026,0 0 0 1px #fff,0 0 30px #4a90e299,0 0 60px #4a90e24d}to{box-shadow:0 10px 25px -5px #0000001a,0 0 0 1px #fffc,0 0 20px #4a90e266,0 0 40px #4a90e233}}.toast-icon{background:linear-gradient(135deg,#4caf50,#45a049);width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff;box-shadow:0 2px 8px #4caf504d}.toast-content{display:flex;flex-direction:column;flex-grow:1;gap:2px}.toast-title{font-weight:700;font-size:15px;color:#1a1a1a}.toast-desc{font-size:13px;color:#666}.toast-action{color:#4caf50;display:flex;align-items:center;font-weight:600;font-size:14px}.toast-close{background:none;border:none;color:#999;cursor:pointer;padding:6px;margin-left:8px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all .2s}.toast-close:hover{background-color:#0000000d;color:#333}.generation-toast:hover{transform:translate(-50%) translateY(2px)}.publish-modal-overlay{position:fixed;inset:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;animation:fadeIn .2s ease-out}.publish-modal{background:#fff;border-radius:32px;width:90%;max-width:480px;box-shadow:0 10px 25px #0003;display:flex;flex-direction:column;overflow:hidden;animation:slideUp .3s ease-out}.publish-modal-header{padding:20px 24px;border-bottom:1px solid #eee;display:flex;align-items:center;gap:12px}.publish-header-icon{width:40px;height:40px;background:linear-gradient(135deg,#10b981,#059669);border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff}.publish-modal-header h3{margin:0;font-size:1.25rem;font-weight:600;color:#1a1a1a;flex:1}.publish-modal .close-btn{background:none;border:none;cursor:pointer;color:#666;padding:4px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s}.publish-modal .close-btn:hover{background-color:#f5f5f5;color:#000}.publish-modal form{display:flex;flex-direction:column}.publish-modal-body{padding:24px;display:flex;flex-direction:column;gap:20px}.publish-description{font-size:.95rem;color:#666;line-height:1.6;margin:0}.publish-modal .form-group{display:flex;flex-direction:column;gap:8px}.publish-modal .form-group label{font-size:.9rem;font-weight:500;color:#333}.publish-input{padding:12px 16px;border:1px solid #e0e0e0;border-radius:16px;font-size:.95rem;transition:all .2s;background:#fafafa}.publish-input:focus{outline:none;border-color:#10b981;background:#fff;box-shadow:0 0 0 3px #10b9811a}.publish-input::placeholder{color:#999}.link-preview{display:flex;align-items:center;gap:10px;padding:12px 16px;background:#f5f5f5;border-radius:16px;border:1px solid #e0e0e0}.link-icon{color:#666;flex-shrink:0}.link-text{flex:1;font-size:.85rem;color:#333;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.copy-btn{background:#fff;border:1px solid #e0e0e0;border-radius:8px;padding:6px;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#666;transition:all .2s}.copy-btn:hover{background:#f0f0f0;color:#000}.publish-modal-footer{padding:16px 24px;border-top:1px solid #eee;display:flex;justify-content:flex-end;gap:12px}.cancel-btn{padding:10px 20px;border:1px solid #e0e0e0;background:#fff;border-radius:99px;font-weight:500;cursor:pointer;transition:all .2s;color:#333}.confirm-delete-btn{padding:10px 20px;border:1px solid #e0e0e0;background:#ef4444;border-radius:99px;font-weight:500;cursor:pointer;transition:all .2s;color:#fff}.confirm-delete-btn:hover{transform:scale(1.05)}.cancel-btn:hover{background:#f5f5f5;border-color:#ccc}.publish-btn{display:flex;align-items:center;gap:8px;background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;padding:10px 24px;border-radius:99px;font-weight:500;cursor:pointer;transition:all .2s}.publish-btn:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 4px 12px #10b9814d}.publish-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.icon-upload-zone{border:2px dashed #e0e0e0;border-radius:16px;padding:24px;cursor:pointer;transition:all .2s;background:#fafafa;display:flex;align-items:center;justify-content:center;min-height:120px}.icon-upload-zone:hover{border-color:#10b981;background:#f0fdf4}.icon-upload-zone.dragging{border-color:#10b981;background:#ecfdf5;border-style:solid}.icon-upload-zone.has-preview{cursor:default;padding:16px}.icon-upload-placeholder{display:flex;flex-direction:column;align-items:center;gap:8px;color:#666}.upload-icon-wrapper{width:48px;height:48px;background:#e5e7eb;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#9ca3af}.icon-upload-placeholder span{font-size:.9rem}.upload-hint{font-size:.8rem!important;color:#999!important}.icon-preview-wrapper{position:relative;display:inline-block}.icon-preview{width:80px;height:80px;object-fit:cover;border-radius:12px;box-shadow:0 2px 8px #0000001a}.remove-icon-btn{position:absolute;top:-8px;right:-8px;width:24px;height:24px;border-radius:50%;background:#ef4444;border:2px solid white;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;padding:0;transition:all .2s}.remove-icon-btn:hover{background:#dc2626;transform:scale(1.1)}.app{display:flex;width:100vw;height:100vh;background:#fff}.main-content{flex:1;overflow:hidden;background:#f5f5f5;display:flex;justify-content:center;align-items:center}.publish-floating-btn{position:fixed;bottom:24px;right:24px;display:flex;align-items:center;gap:8px;padding:12px 20px;background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;border-radius:99px;font-size:.95rem;font-weight:500;cursor:pointer;box-shadow:0 4px 12px #10b9814d;transition:all .2s ease;z-index:100}.publish-floating-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px #10b98166}.publish-floating-btn:active{transform:translateY(0)}.pdf-loading-overlay{position:fixed;inset:0;background:linear-gradient(135deg,#f8fafc,#e2e8f0);display:flex;justify-content:center;align-items:center;z-index:1000}.pdf-loading-content{display:flex;flex-direction:column;align-items:center;gap:24px;text-align:center}.pdf-loading-spinner{width:56px;height:56px;border:4px solid #e2e8f0;border-top-color:#3b82f6;border-radius:50%;animation:spinner-rotate 1s linear infinite}@keyframes spinner-rotate{to{transform:rotate(360deg)}}.pdf-loading-title{font-size:1.5rem;font-weight:600;color:#1e293b;margin:0}.pdf-loading-progress{font-size:1rem;color:#64748b;margin:0;animation:pulse-text 1.5s ease-in-out infinite}@keyframes 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.seminar-header-group{display:flex;align-items:center;justify-content:center;gap:20px;margin-bottom:2.5rem}.ai-seminar-page .seminar-fair-img{height:65px;width:auto;object-fit:contain;filter:grayscale(100%) brightness(0);opacity:.85}.ai-seminar-page .seminar-header-divider{width:1px;height:32px;background-color:var(--rb-gray-300)}.ai-seminar-page .seminar-hero-badge{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;background:var(--rb-white);border:1px solid var(--rb-border);color:var(--rb-blue);font-size:.875rem;font-weight:500;border-radius:12px;letter-spacing:.05em}.ai-seminar-page .seminar-hero-badge.no-margin{margin-bottom:0}.ai-seminar-page .seminar-hero-title{font-family:var(--font-google);font-size:3.5rem;font-weight:400;line-height:1.2;margin-bottom:1.5rem;color:var(--rb-black);letter-spacing:-.02em;word-break:keep-all}.ai-seminar-page .seminar-hero-title-highlight{position:relative;display:inline-block;color:var(--rb-black);z-index:1}.ai-seminar-page .seminar-hero-title-highlight:after{content:"";position:absolute;bottom:4px;left:0;width:100%;height:12px;background:#1a73e826;z-index:-1;transform:rotate(-1deg)}.ai-seminar-page .seminar-hero-subtitle{font-size:1.25rem;color:var(--rb-gray-500);max-width:700px;margin:0 auto 3rem;line-height:1.75;word-break:keep-all;font-weight:400}.ai-seminar-page .seminar-event-card{display:inline-flex;flex-direction:column;gap:12px;background:var(--rb-white);padding:24px 40px;border-radius:12px;box-shadow:0 4px 20px #0000000f;border:1px solid var(--rb-border);margin-bottom:2.5rem}.ai-seminar-page .seminar-event-item{display:flex;align-items:center;gap:12px;color:var(--rb-gray-700);font-size:1rem;font-weight:500}.ai-seminar-page .seminar-event-item svg{color:var(--rb-gray-500)}.ai-seminar-page .seminar-share-container{display:flex;gap:16px;justify-content:center;margin-top:3rem}.ai-seminar-page .seminar-share-btn{width:52px;height:52px;border-radius:50%;border:1px solid var(--rb-border);background:var(--rb-white);display:flex;align-items:center;justify-content:center;transition:all .2s ease;color:var(--rb-gray-500);cursor:pointer}.ai-seminar-page .seminar-share-btn:hover{transform:translateY(-3px);box-shadow:0 8px 20px #00000014;border-color:var(--rb-blue);color:var(--rb-blue)}.ai-seminar-page .seminar-share-btn.kakao{background:#fee500;border-color:#fee500;color:#3c1e1e}.ai-seminar-page .seminar-share-btn.kakao:hover{background:#ed0;border-color:#ed0}.ai-seminar-page .seminar-toast{position:fixed;bottom:40px;left:50%;transform:translate(-50%);background:var(--rb-black);color:var(--rb-white);padding:14px 28px;border-radius:99px;font-size:.95rem;font-weight:500;z-index:2000;box-shadow:0 10px 30px #0003;display:flex;align-items:center;gap:10px}.ai-seminar-page .seminar-cta-button-large{display:inline-flex;align-items:center;justify-content:center;background:var(--rb-blue);color:var(--rb-white);font-size:1rem;font-weight:500;padding:.9rem 2.5rem;border-radius:4px;transition:all .2s;box-shadow:0 2px 8px #1a73e84d;text-decoration:none;font-family:var(--font-google)}.ai-seminar-page .seminar-cta-button-large:hover{background:var(--rb-blue-hover);box-shadow:0 4px 16px #1a73e866;transform:translateY(-2px)}.ai-seminar-page .seminar-target-section{padding-bottom:140px}.ai-seminar-page .seminar-section-header{text-align:center;margin-bottom:4rem}.ai-seminar-page .seminar-section-title{font-family:var(--font-google);font-size:2.5rem;font-weight:400;margin-bottom:1rem;letter-spacing:-.01em;color:var(--rb-black)}.ai-seminar-page .seminar-section-title-highlight{text-decoration:underline;text-underline-offset:8px;text-decoration-color:#1a73e84d}.ai-seminar-page .seminar-section-desc{color:var(--rb-gray-500);font-size:1.125rem;line-height:1.7}.ai-seminar-page .seminar-feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;margin-top:3rem}.ai-seminar-page .seminar-feature-card{background:var(--rb-white);border:1px solid var(--rb-border);padding:2.5rem 2rem;border-radius:12px;transition:all .3s ease;height:100%;position:relative;overflow:hidden}.ai-seminar-page .seminar-feature-card:hover{border-color:var(--rb-blue);box-shadow:0 4px 20px #1a73e826;transform:translateY(-4px)}.ai-seminar-page .seminar-icon-wrapper{width:48px;height:48px;background:#e8f0fe;border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--rb-blue);margin-bottom:1.25rem}.ai-seminar-page .seminar-feature-title{font-family:var(--font-google);font-size:1.25rem;font-weight:500;margin-bottom:.5rem;color:var(--rb-black)}.ai-seminar-page .seminar-feature-desc{color:var(--rb-gray-500);line-height:1.6;font-size:.95rem}.ai-seminar-page .seminar-program-section{padding:6rem 0;background:var(--rb-gray-50);border-top:1px solid var(--rb-border);border-bottom:1px solid var(--rb-border)}.ai-seminar-page .seminar-program-header{text-align:center;margin-bottom:5rem}.ai-seminar-page .seminar-program-label{font-size:.875rem;font-weight:500;letter-spacing:.05em;text-transform:uppercase;color:var(--rb-blue);display:block;margin-bottom:1rem}.ai-seminar-page .seminar-program-title{font-family:var(--font-google);font-size:2.5rem;font-weight:400;margin-bottom:1.5rem;letter-spacing:-.01em;color:var(--rb-black)}.ai-seminar-page .seminar-program-desc{color:var(--rb-gray-500);font-size:1.125rem;max-width:600px;margin:0 auto;line-height:1.7}.ai-seminar-page .seminar-timeline{max-width:960px;margin:0 auto}.ai-seminar-page .seminar-timeline-item{position:relative}.ai-seminar-page .seminar-timeline-item:before{content:"";position:absolute;top:60px;left:27px;width:2px;height:calc(100% + 40px);background:var(--rb-gray-200);z-index:0}.ai-seminar-page .seminar-timeline-item:last-child:before{display:none}.ai-seminar-page .seminar-program-card-item{display:grid;grid-template-columns:80px 1fr;gap:48px;margin-bottom:60px;position:relative;z-index:1}.ai-seminar-page .seminar-timeline-number{width:56px;height:56px;background:var(--rb-white);border:2px solid var(--rb-blue);color:var(--rb-blue);font-size:1.25rem;font-weight:600;display:flex;align-items:center;justify-content:center;border-radius:12px;position:relative;z-index:2;box-shadow:0 4px 12px #0000000d;font-family:var(--font-google)}.ai-seminar-page .seminar-program-card-content{background:var(--rb-white);border:1px solid var(--rb-border);border-radius:12px;padding:2.5rem;transition:all .3s ease}.ai-seminar-page .seminar-program-card-content:hover{border-color:var(--rb-blue);box-shadow:0 4px 20px #1a73e81a}.ai-seminar-page .seminar-timeline-title{font-family:var(--font-google);font-size:1.5rem;font-weight:500;margin-bottom:.75rem;color:var(--rb-black);letter-spacing:-.01em}.ai-seminar-page .seminar-timeline-desc{font-size:1rem;color:var(--rb-gray-500);line-height:1.7;margin-bottom:1.5rem}.ai-seminar-page .seminar-level-badge{font-size:.8rem;font-weight:600;color:var(--rb-blue);text-transform:uppercase;letter-spacing:.05em;border-bottom:2px solid var(--rb-blue);padding-bottom:4px}.ai-seminar-page .seminar-tag{font-size:.75rem;color:var(--rb-gray-500);background:var(--rb-gray-100);padding:4px 10px;border-radius:99px;font-weight:500}.ai-seminar-page .seminar-img-placeholder-frame{width:100%;padding-top:56.25%;background:var(--rb-gray-50);border-radius:8px;position:relative;border:1px solid var(--rb-gray-200);overflow:hidden}.ai-seminar-page .seminar-img-placeholder-content{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--rb-gray-500);padding:20px}.ai-seminar-page .seminar-program-img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .4s ease}.ai-seminar-page .seminar-quote-box{background:var(--rb-gray-100);border-radius:0 12px 12px;padding:1.5rem 2rem;font-size:1rem;font-weight:500;color:var(--rb-gray-700);margin-top:1.5rem;position:relative}.ai-seminar-page .seminar-quote-box:before{content:'"';position:absolute;top:8px;left:12px;font-size:3rem;color:#0000000d;line-height:1;font-family:serif}.ai-seminar-page .seminar-benefits-section{padding:6rem 0}.ai-seminar-page .seminar-benefit-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:2rem}.ai-seminar-page .seminar-benefit-box{background:var(--rb-white);border:1px solid var(--rb-border);border-radius:12px;padding:2.5rem}.ai-seminar-page .seminar-benefit-title{font-family:var(--font-google);font-size:1.5rem;font-weight:500;margin-bottom:2rem;color:var(--rb-black)}.ai-seminar-page .seminar-benefit-list{display:flex;flex-direction:column;gap:1rem}.ai-seminar-page .seminar-benefit-item{display:flex;align-items:center;gap:1rem;padding:1rem 1.25rem;background:var(--rb-gray-50);border-radius:8px;transition:all .2s}.ai-seminar-page .seminar-benefit-item:hover{transform:translate(4px);background:var(--rb-gray-100)}.ai-seminar-page .seminar-benefit-item svg{color:var(--rb-blue);min-width:20px}.ai-seminar-page .seminar-benefit-item span{font-weight:500;color:var(--rb-gray-700)}.ai-seminar-page .seminar-gift-box{background:linear-gradient(135deg,#4285f4,#1a73e8);color:var(--rb-white);border-radius:12px;padding:2.5rem;text-align:center;display:flex;flex-direction:column;justify-content:center;align-items:center;position:relative;overflow:hidden;box-shadow:0 8px 32px #1a73e84d}.ai-seminar-page .seminar-gift-box:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 60%);animation:seminar-rotate 20s linear infinite}@keyframes seminar-rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.ai-seminar-page .seminar-gift-content{position:relative;z-index:2}.ai-seminar-page .seminar-gift-highlight{font-size:1.125rem;font-weight:500;margin-bottom:.5rem;color:#ffffffe6;display:block}.ai-seminar-page .seminar-gift-text{font-family:var(--font-google);font-size:1.375rem;font-weight:500;margin-bottom:2rem}.ai-seminar-page .seminar-gift-divider{width:100%;height:1px;background:#fff3;margin:0 auto 2rem}.ai-seminar-page .seminar-cta-section{padding:6rem 0;text-align:center;background:linear-gradient(135deg,var(--rb-black) 0%,#3c4043 100%);position:relative;color:var(--rb-white)}.ai-seminar-page .seminar-cta-content{position:relative;z-index:2}.ai-seminar-page .seminar-cta-title{font-family:var(--font-google);font-size:2.5rem;font-weight:400;margin-bottom:1.5rem;letter-spacing:-.02em;line-height:1.3}.ai-seminar-page .seminar-cta-desc{font-size:1.125rem;opacity:.8;margin-bottom:3rem}.ai-seminar-page .seminar-cta-button-inverse{display:inline-flex;align-items:center;justify-content:center;background:var(--rb-white);color:var(--rb-black);font-size:1rem;font-weight:500;padding:1rem 2.5rem;border-radius:4px;transition:all .2s;box-shadow:0 4px 16px #ffffff26;text-decoration:none;border:none;cursor:pointer;font-family:var(--font-google)}.ai-seminar-page .seminar-cta-button-inverse:hover{transform:translateY(-2px);box-shadow:0 8px 24px #ffffff40}@media (max-width: 768px){.ai-seminar-page .seminar-hero-section{padding-top:140px;padding-bottom:80px}.ai-seminar-page .seminar-hero-title{font-size:2.25rem;letter-spacing:-.01em;margin-bottom:1.25rem}.ai-seminar-page .seminar-hero-subtitle{font-size:1.1rem;padding:0 16px;margin-bottom:2.5rem}.ai-seminar-page .seminar-feature-grid{grid-template-columns:1fr;gap:1rem}.ai-seminar-page .seminar-feature-card{padding:2rem 1.5rem}.ai-seminar-page .seminar-program-section{padding:4rem 0}.ai-seminar-page .seminar-program-card-item{grid-template-columns:1fr;gap:1.5rem}.ai-seminar-page .seminar-timeline-item{display:flex;flex-direction:column;gap:1rem!important}.ai-seminar-page .seminar-section-title,.ai-seminar-page .seminar-program-title{font-size:2rem}.ai-seminar-page .seminar-timeline-title{font-size:1.25rem;word-break:keep-all;line-height:1.3}.ai-seminar-page .seminar-timeline-desc{font-size:.95rem;line-height:1.6;word-break:keep-all}.ai-seminar-page .seminar-timeline-item>div:last-child{width:100%}.ai-seminar-page .seminar-timeline-item:before{display:none}.ai-seminar-page .seminar-timeline-number{position:static;margin-bottom:0;width:44px;height:44px;font-size:1rem;border-radius:10px}.ai-seminar-page .seminar-program-card-content{padding:1.5rem}.ai-seminar-page .seminar-benefits-section{padding:4rem 0}.ai-seminar-page .seminar-benefit-layout{grid-template-columns:1fr}.ai-seminar-page .seminar-benefit-box,.ai-seminar-page .seminar-gift-box{padding:2rem 1.5rem}.ai-seminar-page .seminar-gift-box{margin-top:1.5rem}.ai-seminar-page .seminar-cta-section{padding:4rem 0}.ai-seminar-page .seminar-cta-title{font-size:1.75rem}.ai-seminar-page .seminar-header-group{flex-direction:column;gap:16px;margin-bottom:2rem}.ai-seminar-page .seminar-header-divider{display:none}.ai-seminar-page .seminar-fair-img{height:60px}.ai-seminar-page .seminar-cta-button-large,.ai-seminar-page .seminar-cta-button-inverse{width:100%;padding:1rem;font-size:1rem}}.ai-seminar-page .seminar-fixed-header{position:fixed;top:0;left:0;width:100%;z-index:1000;display:flex;flex-direction:column}.ai-seminar-page .landing-nav,.ai-seminar-page .navbar-wrapper{position:relative!important;top:auto!important;left:auto!important;z-index:1001;border-bottom:none}.ai-seminar-page .seminar-top-banner{background:#1e8e3e;color:#fff;padding:12px 20px;display:flex;align-items:center;justify-content:center;font-size:.95rem;font-weight:500;position:relative;z-index:1000;box-shadow:0 4px 12px #00000026}.ai-seminar-page .seminar-banner-inner{display:flex;align-items:center;justify-content:center;gap:24px;flex:1}.ai-seminar-page .seminar-banner-close-btn{background:#ffffff1a;border:none;cursor:pointer;padding:4px;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:background .2s;margin-left:16px}.ai-seminar-page .seminar-banner-close-btn:hover{background:#fff3}.ai-seminar-page .seminar-top-banner-content{display:flex;align-items:center;gap:4px}.ai-seminar-page .stb-highlight{font-weight:700;color:#ffde59}.ai-seminar-page .stb-divider{width:1px;height:14px;background:#ffffff4d}@media (max-width: 768px){.ai-seminar-page .seminar-banner-inner{flex-direction:row;gap:8px;text-align:center;justify-content:center;white-space:nowrap;font-size:.7rem}.ai-seminar-page .seminar-banner-close-btn{margin-left:8px;padding:2px}.ai-seminar-page .seminar-top-banner{padding:10px 8px;font-size:.75rem}.ai-seminar-page .stb-divider{display:block;height:10px;margin:0 2px}}.session-join-split-view{display:flex;width:100vw;height:100vh;overflow:hidden;background:var(--rb-white);font-family:var(--font-roboto)}.session-join-left-panel{flex:1;max-width:50%;padding:2rem;display:flex;flex-direction:column;position:relative;background:linear-gradient(135deg,#e8f0fe,#f8f9fa);z-index:10;overflow-y:auto}.back-button{background:none;justify-content:center;border:none;display:flex;align-items:center;gap:.5rem;font-size:.9rem;font-family:var(--font-google);color:var(--rb-gray-700);cursor:pointer;padding:0;transition:color .2s;width:fit-content;margin-bottom:2rem}.join-form-container{flex:1;max-width:400px;width:100%;margin:0 auto;display:flex;flex-direction:column;justify-content:center}.join-header{text-align:center;margin-bottom:2.5rem}.welcome-title{font-size:2.25rem;font-weight:400;color:var(--rb-black);margin-bottom:.75rem;letter-spacing:-.01em;font-family:var(--font-google)}.join-form{display:flex;flex-direction:column;gap:20px;width:100%}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-size:14px;font-weight:500;color:var(--rb-gray-700);font-family:var(--font-google)}.form-group input{padding:13px 15px;border:1px solid var(--rb-gray-300);border-radius:4px;font-size:16px;transition:all .2s ease;background:var(--rb-white);color:var(--rb-black)}.form-group input:focus{outline:none;border-color:var(--rb-blue);box-shadow:0 0 0 2px #4285f433}.form-group input:disabled{background-color:var(--rb-gray-50);cursor:not-allowed;color:var(--rb-gray-500)}.device-info-display{background:var(--rb-gray-50);border-radius:8px;padding:16px;border:1px solid var(--rb-gray-200);margin-top:.5rem}.device-info-label{font-size:11px;font-weight:500;color:var(--rb-gray-500);margin-bottom:8px;letter-spacing:.5px;font-family:var(--font-google)}.device-info-details{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--rb-gray-700);margin-bottom:6px}.device-info-details span{font-weight:500;color:var(--rb-black)}.device-id{font-size:11px;color:var(--rb-gray-500);font-family:Roboto Mono,monospace;margin-top:4px}.error-message{display:flex;align-items:center;gap:8px;padding:12px 16px;background:#fce8e6;border:1px solid transparent;border-radius:4px;color:#c5221f;font-size:14px;font-weight:500}.join-btn{display:flex;align-items:center;justify-content:center;gap:10px;padding:12px 24px;background:var(--rb-blue);color:#fff;border:none;border-radius:4px;font-size:16px;font-weight:500;cursor:pointer;transition:all .2s ease;box-shadow:0 1px 2px #0000001a;margin-top:8px;font-family:var(--font-google)}.join-btn:hover:not(:disabled){background:var(--rb-blue-hover);box-shadow:0 2px 4px #0003;transform:translateY(-1px)}.join-btn:disabled{background:var(--rb-gray-300);cursor:not-allowed;box-shadow:none;transform:none}.spinner{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.join-footer{margin-top:32px;text-align:center;padding-top:24px;border-top:1px solid var(--rb-gray-200)}.join-footer p{margin:0;font-size:13px;color:var(--rb-gray-500)}@media (max-width: 900px){.session-join-left-panel{max-width:100%}.welcome-title{font-size:1.8rem}}.session-student-container{display:flex;flex-direction:column;height:100vh;background-color:#f8f9fa;overflow:hidden}.student-header{height:60px;background-color:#fff;border-bottom:1px solid #e9ecef;display:flex;justify-content:space-between;align-items:center;padding:0 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