.site-header{background:var(--color-white);box-shadow:0 2px 10px rgb(0 0 0 / .05);position:sticky;top:0;z-index:var(--z-sticky);padding:var(--space-4) 0}.header-content{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4)}.site-branding{flex-shrink:0}.site-logo{display:flex;align-items:center;gap:var(--space-2);text-decoration:none}.logo-image{height:50px;width:auto;border-radius:8px;background:#fff;padding:4px}.site-title{font-size:var(--text-xl);font-weight:700;color:var(--color-dark);margin:0}.hide-on-mobile{display:none}@media (min-width:768px){.hide-on-mobile{display:block!important}}.main-navigation{display:flex;align-items:center}.nav-menu{display:flex;gap:var(--space-2);list-style:none;margin:0;padding:0;align-items:center}.nav-menu li{margin:0}.nav-menu a{display:block;padding:var(--space-3) var(--space-4);color:var(--color-gray-700);font-weight:600;font-size:var(--text-base);text-decoration:none;border-radius:var(--radius-md);transition:all var(--transition-fast)}.nav-menu a:hover,.nav-menu .current-menu-item a,.nav-menu .current_page_item a{background:var(--color-primary-light);color:var(--color-primary-dark)}.nav-menu .has-dropdown{position:relative}.nav-menu .dropdown-menu{display:none;position:absolute;top:100%;left:0;background:#fff;border-radius:12px;box-shadow:0 8px 24px rgb(0 0 0 / .12);padding:8px 0;min-width:180px;z-index:1000;list-style:none;margin:4px 0 0}.nav-menu .has-dropdown:hover .dropdown-menu{display:block}.nav-menu .dropdown-menu li{margin:0}.nav-menu .dropdown-menu a{display:block;padding:10px 20px;font-size:.9rem;color:#374151;border-radius:0;white-space:nowrap}.nav-menu .dropdown-menu a:hover{background:#fffbeb;color:#d97706}.mobile-menu-toggle{display:none;flex-direction:column;gap:4px;background:none;border:none;padding:var(--space-2);cursor:pointer;z-index:calc(var(--z-sticky) + 1)}.hamburger-line{width:24px;height:2px;background:var(--color-dark);border-radius:2px;transition:all var(--transition-base)}.mobile-menu-toggle.active .hamburger-line:nth-child(1){transform:rotate(45deg) translate(5px,5px)}.mobile-menu-toggle.active .hamburger-line:nth-child(2){opacity:0}.mobile-menu-toggle.active .hamburger-line:nth-child(3){transform:rotate(-45deg) translate(7px,-7px)}.mobile-menu-backdrop{display:none;position:fixed;top:0;left:0;width:100%;height:100vh;background:rgb(0 0 0 / .5);z-index:calc(var(--z-sticky) - 1);opacity:0;transition:opacity var(--transition-base)}.mobile-menu-backdrop.active{display:block;opacity:1}@media (max-width:991px){.site-title{font-size:var(--text-lg)}}@media (max-width:768px){.mobile-menu-toggle{display:flex}.main-navigation{position:fixed;top:0;right:0;width:280px;height:100vh;background:var(--color-white);box-shadow:-4px 0 20px rgb(0 0 0 / .1);transform:translateX(100%);transition:transform var(--transition-base);padding:calc(var(--space-16) + var(--space-4)) var(--space-6) var(--space-6);overflow-y:auto}.main-navigation.active{transform:translateX(0)}.nav-menu{flex-direction:column;gap:0;width:100%}.nav-menu li{width:100%;border-bottom:1px solid var(--color-gray-100)}.nav-menu a{padding:var(--space-4);border-radius:0}.nav-menu .dropdown-menu{position:static;box-shadow:none;background:#f9fafb;border-radius:0;margin:0;padding:0}.nav-menu .dropdown-menu a{padding-left:32px;font-size:.85rem}.nav-menu .has-dropdown:hover .dropdown-menu,.nav-menu .has-dropdown .dropdown-menu{display:block}}.hero-section{padding:var(--space-12) 0;background:linear-gradient(135deg,#FFF8E1 0%,#FFFFFF 100%);overflow:hidden}.hero-content{max-width:600px;position:relative;z-index:2}.hero-badge{display:inline-block;padding:var(--space-2) var(--space-4);background:var(--color-primary-light);color:var(--color-primary-dark);font-weight:600;font-size:var(--text-sm);border-radius:var(--radius-full);margin-bottom:var(--space-4)}.hero-title{margin-bottom:var(--space-6)}.text-highlight{color:var(--color-primary-dark);position:relative;display:inline-block}.text-highlight::after{content:'';position:absolute;bottom:5px;left:0;width:100%;height:12px;background:var(--color-primary);opacity:.3;z-index:-1;transform:rotate(-2deg)}.hero-description{font-size:var(--text-lg);color:var(--color-gray-600);margin-bottom:var(--space-8)}.hero-actions{display:flex;gap:var(--space-4)}.hero-image{position:absolute;right:0;top:50%;transform:translateY(-50%);width:45%;max-width:600px;z-index:1}@media (max-width:991px){.hero-section{text-align:center;padding:var(--space-8) 0}.hero-content{max-width:100%;margin:0 auto}.hero-actions{justify-content:center}.hero-image{position:relative;width:100%;max-width:400px;margin:var(--space-8) auto 0;transform:none;right:auto;top:auto}}.stats-section{padding:var(--space-8) 0;background:var(--color-white);border-bottom:1px solid var(--color-gray-100)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-6);text-align:center}@media (max-width:991px){.stats-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:480px){.stats-grid{grid-template-columns:repeat(2,1fr);gap:var(--space-4)}}.stat-icon{font-size:var(--text-3xl);margin-bottom:var(--space-2)}.stat-number{font-size:var(--text-2xl);font-weight:800;color:var(--color-dark)}.stat-label{color:var(--color-gray-500);font-weight:500}.categories-section{padding:var(--space-16) 0;background:var(--color-light)}.section-header{margin-bottom:var(--space-10)}.section-title{font-size:var(--text-3xl);color:var(--color-dark);margin-bottom:var(--space-2)}.section-subtitle{font-size:var(--text-lg);color:var(--color-gray-500)}.categories-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-6)}.category-card{background:var(--color-white);padding:var(--space-8);border-radius:var(--radius-xl);text-decoration:none;transition:all var(--transition-base);border:2px solid #fff0;display:flex;flex-direction:column;align-items:flex-start}.category-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl)}.category-icon{font-size:var(--text-4xl);margin-bottom:var(--space-4);background:var(--color-gray-50);width:80px;height:80px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg)}.category-title{font-size:var(--text-xl);margin-bottom:var(--space-2)}.category-desc{color:var(--color-gray-600);margin-bottom:var(--space-6);flex-grow:1}.category-link{font-weight:600;display:flex;align-items:center;gap:var(--space-2);color:var(--color-primary-dark)}.isg-card:hover{border-color:var(--color-primary)}.isg-card .category-icon{background:var(--color-primary-light)}.ih-card:hover{border-color:var(--color-success)}.ih-card .category-icon{background:var(--color-success-light)}.ih-card .category-link{color:var(--color-success-dark)}.dsp-card:hover{border-color:var(--color-info)}.dsp-card .category-icon{background:var(--color-info-light)}.dsp-card .category-link{color:var(--color-info-dark)}.lessons-section{padding:var(--space-16) 0;background:#f9fafb}.lessons-compact-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--space-6);margin-bottom:var(--space-6)}.lesson-compact-card{display:flex;flex-direction:column;background:var(--color-white);border-radius:var(--radius-xl);overflow:hidden;transition:all var(--transition-base);box-shadow:0 4px 12px rgb(0 0 0 / .08);position:relative}.lesson-compact-card:hover{transform:translateY(-8px);box-shadow:0 12px 28px rgb(0 0 0 / .15)}.lesson-compact-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,#FFC107 0%,#FF9800 100%);opacity:0;transition:opacity var(--transition-base)}.lesson-compact-card:hover::before{opacity:1}.lesson-compact-image{position:relative;width:100%;height:180px;overflow:hidden;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}.lesson-compact-image img{width:100%;height:100%;object-fit:cover;transition:transform var(--transition-base)}.lesson-compact-card:hover .lesson-compact-image img{transform:scale(1.1)}.lesson-compact-category{position:absolute;top:var(--space-3);left:var(--space-3);font-size:.75rem;font-weight:700;background:rgb(255 255 255 / .95);backdrop-filter:blur(8px);color:var(--color-dark);padding:.375rem .75rem;border-radius:20px;display:inline-flex;align-items:center;gap:.25rem;box-shadow:0 2px 8px rgb(0 0 0 / .1);z-index:2}.lesson-compact-content{padding:var(--space-5);display:flex;flex-direction:column;gap:var(--space-3);flex:1}.lesson-compact-title{font-size:1.125rem;font-weight:700;margin:0;line-height:1.4;color:var(--color-dark);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.lesson-compact-title a{color:inherit;text-decoration:none;transition:color var(--transition-fast);background:linear-gradient(to right,#FFC107 0%,#FFC107 100%);background-size:0% 2px;background-repeat:no-repeat;background-position:left bottom;transition:background-size 0.3s ease}.lesson-compact-title a:hover{color:var(--color-primary-dark);background-size:100% 2px}.lesson-compact-meta{display:flex;gap:var(--space-4);align-items:center;font-size:.875rem;color:var(--color-gray-600);padding-top:var(--space-3);border-top:1px solid var(--color-gray-100);margin-top:auto}.lesson-compact-meta .meta-item{display:flex;align-items:center;gap:.375rem;font-weight:600}.lesson-compact-meta .meta-item svg{color:var(--color-primary);flex-shrink:0}.lesson-compact-meta .meta-item[style*="#10B981"]{background:#ECFDF5;padding:.25rem .625rem;border-radius:12px;color:#10B981}.lesson-compact-meta .meta-item[style*="#F59E0B"]{background:#FEF3C7;padding:.25rem .625rem;border-radius:12px;color:#F59E0B}.lesson-compact-meta .meta-item[style*="#EF4444"]{background:#FEE2E2;padding:.25rem .625rem;border-radius:12px;color:#EF4444}@media (max-width:768px){.lessons-compact-grid{grid-template-columns:1fr;gap:var(--space-5)}.lesson-compact-image{height:200px}.lesson-compact-title{font-size:1rem}}.quick-tips-section{padding:var(--space-16) 0;background:var(--color-white)}.tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-6);margin-top:var(--space-8)}.tip-card{background:var(--color-light);padding:var(--space-6);border-radius:var(--radius-lg);border-left:4px solid var(--color-primary)}.tip-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-3)}.tip-category{font-size:var(--text-xs);font-weight:700;text-transform:uppercase;letter-spacing:1px;color:var(--color-gray-500)}.tip-favorite{background:none;border:none;color:var(--color-gray-400);cursor:pointer;transition:color var(--transition-fast)}.tip-favorite:hover,.tip-favorite.active{color:var(--color-danger);fill:var(--color-danger)}.tip-title a{color:var(--color-dark);text-decoration:none}.tip-excerpt{font-size:var(--text-sm);color:var(--color-gray-600);margin-bottom:var(--space-4)}.tip-read-more{font-size:var(--text-sm);font-weight:600;color:var(--color-primary-dark)}.app-hero-section{padding:var(--space-16) 0;background:linear-gradient(135deg,#f0f9ff 0%,#e0f2fe 50%,#f0f9ff 100%);position:relative;overflow:hidden}.app-hero-section::before{content:'';position:absolute;top:-50%;right:-20%;width:800px;height:800px;background:radial-gradient(circle,rgb(59 130 246 / .08) 0%,transparent 70%);pointer-events:none}.app-hero-content{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-12);align-items:center;position:relative;z-index:2}.app-hero-text{display:flex;flex-direction:column;gap:var(--space-6)}.app-hero-section .app-badge-tag{display:inline-flex;align-items:center;gap:var(--space-2);background:linear-gradient(135deg,#3b82f6 0%,#2563eb 100%);color:var(--color-white);padding:.625rem 1.25rem;border-radius:50px;font-weight:700;font-size:.875rem;width:fit-content;box-shadow:0 4px 12px rgb(59 130 246 / .3);transition:all var(--transition-base)}.app-hero-section .app-badge-tag:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgb(59 130 246 / .4)}.app-hero-section .app-badge-tag svg{width:20px;height:20px}.app-hero-title{font-size:clamp(2rem, 5vw, 3.5rem);font-weight:900;line-height:1.1;color:var(--color-dark);margin:0}.gradient-text{background:linear-gradient(135deg,#3b82f6 0%,#8b5cf6 100%);-webkit-background-clip:text;-webkit-text-fill-color:#fff0;background-clip:text}.app-hero-description{font-size:1.125rem;line-height:1.7;color:var(--color-gray-600);margin:0}.app-features-showcase{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-3)}.feature-badge{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-4);background:var(--color-white);border-radius:var(--radius-lg);box-shadow:0 2px 8px rgb(0 0 0 / .06);transition:all var(--transition-base)}.feature-badge:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgb(0 0 0 / .12)}.feature-badge-icon{font-size:2rem;flex-shrink:0}.feature-badge-text{display:flex;flex-direction:column;gap:.25rem}.feature-badge-text strong{font-size:.9375rem;font-weight:700;color:var(--color-dark);line-height:1.2}.feature-badge-text span{font-size:.8125rem;color:var(--color-gray-500);line-height:1.2}.app-download-buttons{display:flex;gap:var(--space-3);flex-wrap:wrap}.app-download-btn{display:flex;align-items:center;gap:var(--space-2);padding:.625rem 1.125rem;background:var(--color-dark);color:var(--color-white);border-radius:var(--radius-lg);text-decoration:none;transition:all var(--transition-base);box-shadow:0 2px 8px rgb(0 0 0 / .15);min-width:140px}.app-download-btn:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgb(0 0 0 / .25);background:var(--color-gray-800)}.app-download-btn svg{width:24px;height:24px;flex-shrink:0}.app-download-btn .btn-text{display:flex;flex-direction:column;align-items:flex-start;gap:.125rem}.app-download-btn .btn-label{font-size:.625rem;opacity:.8;font-weight:500}.app-download-btn .btn-title{font-size:.875rem;font-weight:700}.app-store-btn{background:linear-gradient(135deg,#000000 0%,#1a1a1a 100%)}.google-play-btn{background:linear-gradient(135deg,#01875f 0%,#00a86b 100%)}.google-play-btn:hover{background:linear-gradient(135deg,#016f4d 0%,#008f5a 100%)}.app-stats{display:flex;align-items:center;gap:var(--space-6);padding:var(--space-5);background:var(--color-white);border-radius:var(--radius-xl);box-shadow:0 2px 12px rgb(0 0 0 / .06)}.app-stat-item{display:flex;flex-direction:column;gap:.25rem}.app-stat-item .stat-value{font-size:1.5rem;font-weight:800;color:var(--color-dark);line-height:1}.app-stat-item .stat-label{font-size:.8125rem;color:var(--color-gray-500);font-weight:500}.app-stat-divider{width:1px;height:40px;background:var(--color-gray-200)}.app-hero-visual{position:relative;display:flex;align-items:center;justify-content:center}.app-screenshots-carousel{position:relative;width:100%;max-width:600px;margin:0 auto}.carousel-container{position:relative;width:100%;height:600px;overflow:hidden;border-radius:2rem;box-shadow:0 20px 60px rgb(0 0 0 / .25);background:#1a1a1a}.carousel-track{display:flex;transition:transform 0.6s cubic-bezier(.4,0,.2,1)}.carousel-item{min-width:100%;position:relative;height:600px}.carousel-item img{width:100%;height:100%;object-fit:cover;display:block!important;visibility:visible!important;opacity:1!important}.screenshot-label{position:absolute;bottom:1.5rem;left:50%;transform:translateX(-50%);background:rgb(0 0 0 / .8);backdrop-filter:blur(10px);color:var(--color-white);padding:.5rem 1.25rem;border-radius:50px;font-size:.875rem;font-weight:600;box-shadow:0 4px 12px rgb(0 0 0 / .3)}.carousel-dots{display:flex;justify-content:center;gap:.5rem;margin-top:1.5rem}.carousel-dots .dot{width:8px;height:8px;border-radius:50%;background:var(--color-gray-300);cursor:pointer;transition:all var(--transition-base)}.carousel-dots .dot:hover{background:var(--color-gray-400);transform:scale(1.2)}.carousel-dots .dot.active{background:var(--color-info);width:24px;border-radius:50px}.floating-badge{position:absolute;display:flex;align-items:center;gap:.5rem;padding:.75rem 1.25rem;background:var(--color-white);border-radius:50px;box-shadow:0 8px 24px rgb(0 0 0 / .12);font-weight:700;font-size:.875rem;color:var(--color-dark);animation:float 3s ease-in-out infinite}.floating-badge .badge-emoji{font-size:1.25rem}.badge-1{top:10%;right:-5%;animation-delay:0s}.badge-2{bottom:15%;left:-8%;animation-delay:1.5s}@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-15px)}}@media (max-width:1024px){.app-hero-content{grid-template-columns:1fr;gap:var(--space-10)}.app-hero-text{text-align:center;align-items:center}.app-hero-section .app-badge-tag{margin:0 auto}.app-features-showcase{max-width:600px;margin:0 auto}.app-download-buttons{justify-content:center}.app-stats{max-width:500px;margin:0 auto}.app-hero-visual{order:-1}.floating-badge{display:none}}@media (max-width:768px){.app-hero-section{padding:var(--space-12) 0}.app-hero-content{gap:var(--space-8)}.app-hero-title{font-size:2rem}.app-hero-description{font-size:1rem}.app-features-showcase{grid-template-columns:1fr;gap:var(--space-2)}.feature-badge{padding:var(--space-3)}.app-download-buttons{flex-direction:column;width:100%}.app-download-btn{width:100%;justify-content:center}.app-stats{flex-wrap:wrap;justify-content:center;gap:var(--space-4)}.app-stat-divider{display:none}.app-screenshots-carousel{max-width:320px}}@media (max-width:480px){.app-hero-section{padding:var(--space-10) 0}.app-hero-title{font-size:1.75rem}.app-download-btn{padding:.875rem 1.5rem;min-width:auto}.app-download-btn svg{width:28px;height:28px}.app-download-btn .btn-title{font-size:1rem}.app-screenshots-carousel{max-width:280px}}.app-banner{position:fixed;bottom:0;left:0;width:100%;background:var(--color-white);box-shadow:0 -4px 20px rgb(0 0 0 / .1);z-index:var(--z-fixed);padding:var(--space-3) 0;transform:translateY(100%);transition:transform var(--transition-base)}.app-banner.is-visible{transform:translateY(0)}.app-banner-content{display:flex;align-items:center;gap:var(--space-4)}.app-banner-icon img{width:48px;height:48px;border-radius:var(--radius-md)}.app-banner-text{flex-grow:1}.app-banner-title{font-weight:700;color:var(--color-dark);margin-bottom:0;line-height:1.2}.app-banner-desc{font-size:var(--text-xs);color:var(--color-gray-500);margin-bottom:0}.app-banner-close{background:none;border:none;color:var(--color-gray-400);cursor:pointer;padding:var(--space-1)}.exam-container{max-width:900px;margin:0 auto;padding:var(--space-6)}.exam-header{background:var(--color-white);padding:var(--space-4);border-radius:var(--radius-lg);margin-bottom:var(--space-6);box-shadow:var(--shadow-sm)}.question-card{background:var(--color-white);padding:var(--space-6);border-radius:var(--radius-xl);box-shadow:var(--shadow-md);margin-bottom:var(--space-6)}.question-text{font-size:var(--text-lg);color:var(--color-dark);margin-bottom:var(--space-6);line-height:1.7;font-weight:500}.options-list{display:flex;flex-direction:column;gap:var(--space-3)}.option-item{display:flex;align-items:flex-start;gap:var(--space-3);padding:var(--space-4);background:var(--color-gray-50);border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-base)}.option-item:hover{background:var(--color-primary-light);border-color:var(--color-primary)}.option-item.selected{background:var(--color-primary-light);border-color:var(--color-primary);box-shadow:0 0 0 3px rgb(255 193 7 / .2)}.option-marker{flex-shrink:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center;background:var(--color-white);border:2px solid var(--color-gray-300);border-radius:var(--radius-full);transition:all var(--transition-base)}.option-item.selected .option-marker{background:var(--color-primary);border-color:var(--color-primary);color:var(--color-white)}.option-content{flex:1;font-size:var(--text-base);color:var(--color-dark);line-height:1.6}.exam-controls{display:flex;gap:var(--space-3);justify-content:space-between}.exam-controls .btn{flex:1;display:flex;align-items:center;justify-content:center;gap:var(--space-2)}@media (max-width:768px){.exam-container{padding:var(--space-3)}.exam-header{padding:var(--space-3);margin-bottom:var(--space-4)}.question-card{padding:var(--space-4);margin-bottom:var(--space-4)}.question-text{font-size:var(--text-base);margin-bottom:var(--space-4)}.options-list{gap:var(--space-2)}.option-item{padding:var(--space-3);gap:var(--space-2)}.option-marker{width:28px;height:28px;font-size:var(--text-sm)}.option-content{font-size:var(--text-sm)}.exam-controls{flex-direction:column;gap:var(--space-2)}.exam-controls .btn{width:100%;padding:var(--space-3)}}@media (max-width:374px){.exam-container{padding:var(--space-2)}.question-text{font-size:var(--text-sm)}.option-content{font-size:.8125rem}}.progress-bar-wrapper{background:var(--color-gray-200);height:6px}.progress-bar{background:var(--color-primary);border-radius:var(--radius-full)}.app-download-page{min-height:100vh;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);padding:var(--space-16) 0}.app-download-container{max-width:800px;margin:0 auto;padding:0 var(--space-6)}.app-hero{text-align:center;margin-bottom:var(--space-12)}.app-icon{margin-bottom:var(--space-6)}.app-icon img{width:120px;height:120px;border-radius:28px;box-shadow:0 20px 40px rgb(0 0 0 / .3);background:#fff}.carousel-item img{width:100%;height:100%;object-fit:cover;object-position:center;display:block}.app-hero h1{font-size:clamp(2rem, 5vw, 3rem);color:#fff;margin-bottom:var(--space-4);font-weight:800}.app-subtitle{font-size:var(--text-xl);color:rgb(255 255 255 / .9);margin:0}.redirect-message{background:rgb(255 255 255 / .95);backdrop-filter:blur(10px);padding:var(--space-6);border-radius:var(--radius-xl);text-align:center;margin-bottom:var(--space-8);box-shadow:0 10px 30px rgb(0 0 0 / .2)}.spinner{width:40px;height:40px;margin:0 auto var(--space-4);border:4px solid rgb(102 126 234 / .2);border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.redirect-message p{margin:0;font-weight:600;color:var(--color-dark)}.app-download-buttons{display:flex;flex-direction:column;gap:var(--space-4);margin-bottom:var(--space-12)}.app-store-button{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-5) var(--space-6);background:rgb(255 255 255 / .95);backdrop-filter:blur(10px);border-radius:var(--radius-xl);text-decoration:none;transition:all var(--transition-base);box-shadow:0 10px 30px rgb(0 0 0 / .2);position:relative;overflow:hidden}.app-store-button::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgb(255 255 255 / .3),transparent);transition:left 0.5s}.app-store-button:hover::before{left:100%}.app-store-button:hover{transform:translateY(-4px);box-shadow:0 15px 40px rgb(0 0 0 / .3)}.app-store-button.recommended{background:linear-gradient(135deg,#FFC107 0%,#FF9800 100%);box-shadow:0 10px 30px rgb(255 193 7 / .4)}.app-store-button.recommended:hover{box-shadow:0 15px 40px rgb(255 193 7 / .5)}.app-store-button.recommended .button-text{color:#fff}.store-icon{width:48px;height:48px;flex-shrink:0}.google-play .store-icon{color:#34A853}.app-store .store-icon{color:#000}.app-store-button.recommended .store-icon{color:#fff}.button-text{display:flex;flex-direction:column;align-items:flex-start;color:var(--color-dark)}.button-text .small{font-size:var(--text-sm);font-weight:500;opacity:.8}.button-text .large{font-size:var(--text-xl);font-weight:700}.app-features{background:rgb(255 255 255 / .95);backdrop-filter:blur(10px);padding:var(--space-8);border-radius:var(--radius-xl);margin-bottom:var(--space-8);box-shadow:0 10px 30px rgb(0 0 0 / .2)}.app-features h2{text-align:center;margin-bottom:var(--space-8);color:var(--color-dark)}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:var(--space-6)}.feature-item{text-align:center}.feature-icon{font-size:3rem;margin-bottom:var(--space-3)}.feature-item h3{font-size:var(--text-lg);margin-bottom:var(--space-2);color:var(--color-dark)}.feature-item p{font-size:var(--text-sm);color:var(--color-gray-600);margin:0}.qr-code-section{text-align:center;padding:var(--space-8);background:rgb(255 255 255 / .95);backdrop-filter:blur(10px);border-radius:var(--radius-xl);box-shadow:0 10px 30px rgb(0 0 0 / .2)}.qr-text{color:var(--color-gray-600);margin-bottom:var(--space-4)}.qr-code-placeholder{display:inline-block;padding:var(--space-4);background:#fff;border-radius:var(--radius-lg);box-shadow:0 4px 12px rgb(0 0 0 / .1)}@media (max-width:768px){.app-download-page{padding:var(--space-8) 0}.app-icon img{width:100px;height:100px}.app-hero h1{font-size:2rem}.app-subtitle{font-size:var(--text-lg)}.category-grid{grid-template-columns:repeat(3,1fr);gap:15px}.category-card{padding:20px 10px}.category-icon{font-size:32px;margin-bottom:10px}.category-title{font-size:14px}.category-description{font-size:11px;margin:8px 0}.category-stats{font-size:11px}.features-grid{grid-template-columns:1fr;gap:var(--space-4)}.app-store-button{padding:var(--space-4) var(--space-5)}.store-icon{width:40px;height:40px}}