@import url(https://fonts.googleapis.com/css2?family=Nunito:wght@400;700;800;900&family=Fredoka+One&display=swap);#aviation-for-kids-app *{box-sizing:border-box;margin:0;padding:0;font-family:'Nunito','Arial Rounded MT Bold',Arial,sans-serif}#aviation-for-kids-app{--navy:#1a3a6e;--navy-mid:#2a5aae;--navy-light:#e8f4fd;--gold:#f0c040;--gold-light:#fffbef;--gold-mid:#ff9a3c;--green:#50c878;--green-light:#f0faf4;--muted:#6a8aaa;--dark:#1a2a3a;--cream:#dde8f4;max-width:480px;margin:0 auto;padding:1rem;color:#2a3a4a;background:#e8f4fd;min-height:100vh}.avk-screen{display:none;flex-direction:column;gap:1rem}.avk-screen.avk-active{display:flex}.avk-hero-img,.avk-lesson-img{width:100%;border-radius:12px;display:block;object-fit:cover}.avk-lesson-img{max-height:200px}.avk-opening-card{background:#fff;border-radius:16px;padding:1.5rem;text-align:center;box-shadow:0 2px 12px rgb(26 58 110 / .08)}.avk-logo{width:72px;height:72px;border-radius:50%;background:var(--navy);margin:-52px auto 12px;display:flex;align-items:center;justify-content:center;font-size:34px;box-shadow:0 4px 18px rgb(26 58 110 / .25);position:relative;z-index:2}.avk-brand{font-size:11px;font-weight:900;color:var(--muted);letter-spacing:2px;text-transform:uppercase;margin-bottom:4px}.avk-opening-card h1{font-family:'Fredoka One',cursive;font-size:26px;color:var(--dark);line-height:1.3;margin-bottom:4px}.avk-subtitle{font-size:13px;color:var(--muted);font-style:italic;margin-bottom:16px;font-weight:700}.avk-feats{background:var(--navy-light);border-radius:12px;padding:12px;margin-bottom:16px;text-align:left}.avk-feat{display:flex;align-items:center;gap:12px;padding:6px 0}.avk-feat-icon{font-size:22px;flex-shrink:0}.avk-feat-title{font-size:13px;font-weight:800;color:var(--dark)}.avk-feat-sub{font-size:11px;color:var(--muted)}.avk-feat-divider{height:1px;background:var(--cream);margin:3px 0}.avk-btn-primary{background:linear-gradient(135deg,var(--navy),var(--navy-mid));color:#fff;border:none;border-radius:12px;padding:14px 1.5rem;font-size:18px;cursor:pointer;width:100%;font-family:'Fredoka One',cursive;box-shadow:0 4px 18px rgb(26 58 110 / .3);transition:transform .2s}.avk-btn-primary:hover{transform:scale(1.02)}.avk-btn-secondary{background:#fff0;color:var(--navy);border:1.5px solid var(--navy);border-radius:10px;padding:.65rem 1.25rem;font-size:14px;cursor:pointer;width:100%;font-family:'Nunito',sans-serif;font-weight:800}.avk-btn-secondary:hover{background:var(--navy-light)}.avk-nav{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;background:#fff;border:1px solid var(--cream);border-radius:14px;padding:6px;box-shadow:0 2px 8px rgb(0 0 0 / .05)}.avk-nav-btn{background:#fff0;border:none;border-radius:10px;padding:8px 4px;font-size:11px;color:var(--muted);cursor:pointer;text-align:center;line-height:1.4;font-family:'Nunito',sans-serif;font-weight:800}.avk-nav-btn.avk-active{background:var(--navy);color:#fff}.avk-nav-icon{font-size:15px;display:block;margin-bottom:2px}.avk-card{background:#fff;border:1px solid var(--cream);border-radius:14px;padding:1.1rem;box-shadow:0 2px 8px rgb(0 0 0 / .05)}.avk-card-gold{background:var(--gold-light);border:1px solid var(--gold);border-radius:14px;padding:1.1rem}.avk-card-navy{background:linear-gradient(135deg,var(--navy),var(--navy-mid));border-radius:16px;padding:1.1rem;box-shadow:0 4px 18px rgb(26 58 110 / .25);cursor:pointer;transition:transform .2s}.avk-card-navy:hover{transform:translateY(-2px)}.avk-progress-wrap{background:var(--cream);border-radius:99px;height:12px;overflow:hidden;margin:.5rem 0}.avk-progress-fill{background:linear-gradient(90deg,var(--gold),var(--gold-mid));height:12px;border-radius:99px;transition:width 0.5s ease}.avk-lesson-header{background:#fff;border-radius:14px;padding:1rem 1.1rem;border-left:4px solid var(--navy);box-shadow:0 2px 8px rgb(0 0 0 / .05)}.avk-lesson-number{font-size:12px;color:var(--muted);font-weight:900;margin-bottom:3px;text-transform:uppercase;letter-spacing:1px}.avk-lesson-title{font-family:'Fredoka One',cursive;font-size:24px;color:var(--dark)}.avk-lesson-theme{font-size:12px;color:var(--muted);font-weight:700;margin-top:2px}.avk-section-block{margin-bottom:1rem}.avk-section-label{font-size:10px;font-weight:900;color:var(--navy);text-transform:uppercase;letter-spacing:.12em;margin-bottom:6px;display:flex;align-items:center;gap:6px}.avk-section-text{font-size:14px;color:#2a3a4a;line-height:1.75}.avk-section-text ul{list-style:none;padding:0}.avk-section-text ul li{padding:4px 0;display:flex;gap:10px;align-items:flex-start;line-height:1.5;font-size:13px}.avk-section-text ul li::before{content:'✈';font-size:12px;flex-shrink:0;margin-top:3px;color:var(--navy)}.avk-section-activity{font-size:14px;color:#2a3a4a;line-height:1.75}.avk-section-reflect{font-size:15px;color:var(--navy);font-style:italic;font-weight:800;line-height:1.6}.avk-section-funfact{font-size:13px;color:#1a5a2a;line-height:1.75}.avk-card-activity{background:var(--gold-light);border:1px solid var(--gold);border-radius:14px;padding:1rem}.avk-card-activity .avk-section-label{color:#a07010}.avk-card-reflect{background:#f0f5ff;border:1px solid #c0d4f8;border-radius:14px;padding:1rem}.avk-card-reflect .avk-section-label{color:var(--navy-mid)}.avk-card-funfact{background:var(--green-light);border:1px solid var(--green);border-radius:14px;padding:1rem}.avk-card-funfact .avk-section-label{color:#1a7a3a}.avk-complete-btn{background:linear-gradient(135deg,var(--navy),var(--navy-mid));color:#fff;border:none;border-radius:12px;padding:14px;font-size:17px;font-weight:900;cursor:pointer;width:100%;margin-top:.5rem;font-family:'Fredoka One',cursive;box-shadow:0 4px 14px rgb(26 58 110 / .3);transition:all .2s}.avk-complete-btn.avk-done{background:linear-gradient(135deg,var(--green),#30a858);cursor:default}.avk-complete-btn:hover:not(.avk-done){transform:scale(1.02)}.avk-daily-label{font-size:10px;font-weight:900;color:rgb(255 255 255 / .7);letter-spacing:2px;text-transform:uppercase;margin-bottom:6px}.avk-daily-title{font-family:'Fredoka One',cursive;font-size:20px;color:#fff;margin-bottom:4px}.avk-daily-sub{font-size:12px;color:rgb(255 255 255 / .75);margin-bottom:12px}.avk-daily-btn{display:inline-block;background:var(--gold);color:var(--dark);font-family:'Fredoka One',cursive;font-size:15px;padding:8px 20px;border-radius:10px}.avk-countdown-card{background:#fff;border-radius:14px;padding:14px;text-align:center;box-shadow:0 2px 8px rgb(0 0 0 / .05)}.avk-countdown-card h4{font-size:13px;font-weight:900;color:var(--navy);margin-bottom:4px}.avk-countdown-timer{font-family:'Fredoka One',cursive;font-size:28px;color:var(--gold)}.avk-countdown-sub{font-size:11px;color:var(--muted);margin-top:2px}.avk-sectabs{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px}.avk-sectabs::-webkit-scrollbar{display:none}.avk-sectab{flex-shrink:0;padding:7px 14px;border-radius:20px;font-size:11px;font-weight:800;cursor:pointer;border:2px solid var(--cream);background:#fff;color:var(--muted);transition:all .2s;white-space:nowrap}.avk-sectab.avk-active{background:var(--navy);color:#fff;border-color:var(--navy)}.avk-lesson-list{display:flex;flex-direction:column;gap:10px}.avk-lesson-row{display:flex;align-items:center;gap:12px;background:#fff;border:2px solid var(--cream);border-radius:14px;padding:13px 15px;cursor:pointer;transition:all .2s;box-shadow:0 2px 8px rgb(0 0 0 / .04)}.avk-lesson-row:hover:not(.avk-locked){border-color:var(--gold);transform:translateY(-2px)}.avk-lesson-row.avk-done-row{border-color:var(--green);background:var(--green-light)}.avk-lesson-row.avk-locked{opacity:.55;cursor:not-allowed}.avk-lesson-row.avk-today-row{border-color:var(--gold);background:var(--gold-light)}.avk-lesson-num{width:38px;height:38px;border-radius:50%;flex-shrink:0;background:var(--navy-light);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:900;color:var(--navy)}.avk-lesson-row.avk-done-row .avk-lesson-num{background:var(--green);color:#fff}.avk-lesson-row.avk-locked .avk-lesson-num{background:#c8d8e8;color:#8aaabb}.avk-lesson-row.avk-today-row .avk-lesson-num{background:var(--gold);color:var(--dark)}.avk-lesson-info{flex:1}.avk-lesson-info h3{font-size:13px;font-weight:900;color:var(--dark);margin-bottom:2px}.avk-lesson-info p{font-size:11px;color:var(--muted)}.avk-lesson-arr{font-size:20px;flex-shrink:0;color:var(--cream)}.avk-lesson-row.avk-today-row .avk-lesson-arr{color:var(--gold)}.avk-lesson-row.avk-done-row .avk-lesson-arr{color:var(--green)}.avk-day-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}.avk-day-dot{width:100%;aspect-ratio:1;border-radius:50%;border:1px solid var(--cream);background:#fff;display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--muted);cursor:pointer;font-weight:700}.avk-day-dot.avk-dot-done{background:var(--navy);color:#fff;border-color:var(--navy)}.avk-day-dot.avk-dot-today{border:2px solid var(--gold);color:var(--navy)}.avk-badge-row{display:flex;gap:8px;flex-wrap:wrap}.avk-badge{font-size:12px;padding:5px 12px;background:var(--navy-light);color:var(--navy);border:1px solid var(--cream);border-radius:99px;font-weight:800}.avk-badge.avk-earned{background:var(--navy);color:#fff;border-color:var(--navy)}.avk-completion-card{background:linear-gradient(135deg,#e8f8ee,#fff8e0);border:2px solid var(--green);border-radius:16px;padding:1.25rem;text-align:center}.avk-completion-card h3{font-size:16px;color:#2a8a4a;font-weight:900;margin-bottom:4px}.avk-completion-card p{font-size:12px;color:#4a8a5a}.avk-cert{background:linear-gradient(160deg,var(--navy-light),var(--gold-light));border:2px solid var(--gold);border-radius:20px;padding:2rem 1.5rem;text-align:center;box-shadow:0 4px 24px rgb(240 192 64 / .2)}.avk-cert-seal{width:64px;height:64px;border-radius:50%;background:var(--navy);margin:0 auto 1rem;display:flex;align-items:center;justify-content:center;font-size:28px}.avk-cert h2{font-family:'Fredoka One',cursive;font-size:22px;color:var(--dark);margin-bottom:4px}.avk-cert-sub{font-size:13px;color:var(--muted);margin-bottom:1rem;font-weight:700}.avk-cert-names{font-size:15px;color:var(--dark);line-height:2.4}.avk-cert-names strong{color:var(--navy);font-size:17px}.avk-cert-divider{border:none;border-top:1px solid var(--cream);margin:1rem 0}.avk-cert-quote{font-style:italic;font-size:13px;color:var(--muted);line-height:1.7}.avk-cert-input{width:100%;padding:10px 12px;border:2px solid var(--cream);border-radius:10px;font-size:15px;margin-bottom:10px;font-family:'Nunito',sans-serif;color:var(--dark);outline:none}.avk-cert-input:focus{border-color:var(--gold)}.avk-back-btn{display:flex;align-items:center;gap:6px;background:none;border:none;color:var(--muted);font-size:13px;font-family:'Nunito',sans-serif;font-weight:800;cursor:pointer;padding:4px 0}.avk-back-btn:hover{color:var(--navy)}.avk-label-sm{font-size:13px;color:var(--muted);font-weight:700}.avk-heading-lg{font-family:'Fredoka One',cursive;font-size:22px;color:var(--dark)}.avk-text-sm{font-size:12px;color:var(--muted)}.avk-subbar{background:var(--navy);color:#fff;text-align:center;padding:10px 16px;border-radius:12px;font-size:13px;font-weight:700}.avk-subbar span{color:var(--gold)}