@import "https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@400;600;700;800&display=swap";:root{--accent-main:#2abb9c;--accent-strong:#20a78b;--accent-deep:#118b71;--neutral-soft:#bac0c5;--neutral-dark:#151515;--gray-core:#151515;--gray-secondary:#2e3033;--bg-main:#fff;--surface-main:#fff;--surface-soft:#2e303314;--surface-secondary:#2e303329;--text-main:#151515;--text-muted:#2e3033;--border-color:#1515153d;--shadow-soft:0 12px 28px #15151514;--font-size-xl:24px;--font-size-md:16px;--font-size-sm:11px}:root[data-theme=dark]{--bg-main:#151515;--surface-main:#1f2124;--surface-soft:#26282b;--surface-secondary:#2e3033;--text-main:#fff;--text-muted:#bac0c5;--border-color:#bac0c557;--shadow-soft:0 14px 24px #00000059}*,:before,:after{box-sizing:border-box;margin:0;font-weight:400}body{min-height:100vh;color:var(--text-main);background:var(--bg-main);font-family:Source Sans Pro,Arial,sans-serif;line-height:1.6;font-size:var(--font-size-md);text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:color .5s,background-color .5s}#app{width:100%}.landing-page[data-v-d119a05e]{min-height:100vh;color:var(--text-main);background:var(--bg-main);padding:1.2rem}.content-shell[data-v-d119a05e],.top-bar[data-v-d119a05e],footer[data-v-d119a05e]{max-width:1120px;margin-left:auto;margin-right:auto}.top-bar[data-v-d119a05e]{justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1.15rem;display:flex}.brand-block[data-v-d119a05e]{align-items:center;gap:.8rem;display:flex}.htl-logo[data-v-d119a05e]{object-fit:contain;width:clamp(132px,17vw,205px);height:auto}.brand-text h1[data-v-d119a05e]{font-size:var(--font-size-xl);color:var(--accent-main);font-weight:800;line-height:1.15}.brand-text p[data-v-d119a05e]{color:var(--text-muted);font-size:var(--font-size-sm)}.control-panel[data-v-d119a05e]{align-items:center;gap:.55rem;display:flex}.language-menu[data-v-d119a05e]{position:relative}.icon-button[data-v-d119a05e]{cursor:pointer;width:46px;height:46px;color:var(--text-main);background:0 0;border:0;border-radius:0;padding:0}.icon-outline[data-v-d119a05e]{fill:none;stroke:currentColor;stroke-width:1.7px;stroke-linecap:round;stroke-linejoin:round;width:20px;height:20px}.language-popover[data-v-d119a05e]{border:1px solid var(--border-color);background:var(--surface-main);min-width:150px;box-shadow:var(--shadow-soft);z-index:5;border-radius:10px;gap:.25rem;padding:.35rem;display:grid;position:absolute;top:52px;right:0}.language-option[data-v-d119a05e]{color:var(--text-main);text-align:left;cursor:pointer;background:0 0;border:0;border-radius:8px;padding:.5rem .6rem;font-size:14px}.language-option.active[data-v-d119a05e],.language-option[data-v-d119a05e]:hover{background:#2e303333}.theme-toggle[data-v-d119a05e]{cursor:pointer;background:0 0;border:0;border-radius:0;justify-content:center;align-items:center;width:56px;min-height:46px;padding:0;display:inline-flex}.switch-track[data-v-d119a05e]{background:var(--surface-secondary);border:1px solid var(--border-color);border-radius:999px;align-items:center;width:56px;height:28px;padding:0 4px;display:inline-flex;position:relative;overflow:hidden}.switch-thumb[data-v-d119a05e]{z-index:1;width:20px;height:20px;color:var(--gray-core);background:#fff;border-radius:50%;justify-content:center;align-items:center;transition:transform .26s;display:inline-flex;position:relative;transform:translate(0)translateY(0)}.switch-thumb .icon-outline[data-v-d119a05e]{width:12px;height:12px}.switch-thumb.dark[data-v-d119a05e]{transform:translate(28px)translateY(-1px)}.hero[data-v-d119a05e]{grid-template-columns:1.22fr .78fr;gap:1rem;margin-bottom:1rem;display:grid}.hero-content[data-v-d119a05e],.mobile-preview[data-v-d119a05e],.section-card[data-v-d119a05e]{border:1px solid var(--border-color);box-shadow:var(--shadow-soft);background:var(--surface-main);border-radius:14px}.hero-content[data-v-d119a05e]{padding:1.1rem}.hero-content h2[data-v-d119a05e],.section-card h3[data-v-d119a05e]{color:var(--accent-main);margin-bottom:.55rem;font-size:clamp(1.18rem,2.4vw,1.7rem);font-weight:800}.hero-description[data-v-d119a05e],.section-card p[data-v-d119a05e],.hero-content li[data-v-d119a05e]{font-size:var(--font-size-md)}.hero-content ul[data-v-d119a05e]{gap:.5rem;list-style:none;display:grid}.hero-content li[data-v-d119a05e]:before{content:"•";color:var(--accent-main);margin-right:.45rem;font-weight:800}.mobile-preview[data-v-d119a05e]{background:var(--surface-secondary);gap:.7rem;padding:.9rem;display:grid}.preview-label[data-v-d119a05e]{font-size:var(--font-size-sm);text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted)}.phone-frame[data-v-d119a05e]{border:2px solid var(--accent-main);background:#111;border-radius:26px;max-width:224px;margin:0 auto;padding:.35rem}.screen[data-v-d119a05e]{background:linear-gradient(#202020,#151515);border-radius:18px;padding:.8rem}.screen-title[data-v-d119a05e]{color:#fff;font-size:var(--font-size-sm);margin-bottom:.5rem}.screen-road[data-v-d119a05e]{background:#bac0c5;height:2px;margin-top:2.2rem}.dino[data-v-d119a05e],.obstacle[data-v-d119a05e]{background:var(--accent-main);border-radius:4px;position:relative}.dino[data-v-d119a05e]{width:17px;height:17px;animation:2.2s ease-in-out infinite hop-d119a05e;bottom:12px;left:10px}.obstacle[data-v-d119a05e]{width:10px;height:27px;animation:2.2s ease-in-out infinite obstacle-slide-d119a05e;bottom:12px;left:calc(100% - 30px)}.qr-box[data-v-d119a05e]{background:var(--surface-soft);border:1px solid var(--border-color);border-radius:12px;align-items:center;gap:.65rem;padding:.65rem;display:flex}.qr-grid[data-v-d119a05e]{background:linear-gradient(90deg,#151515 14%,#0000 14% 28%,#151515 28% 42%,#0000 42% 56%,#151515 56% 70%,#0000 70%),linear-gradient(#151515 14%,#0000 14% 28%,#151515 28% 42%,#0000 42% 56%,#151515 56% 70%,#0000 70%),#fff;border:1px solid #bac0c5;border-radius:7px;width:54px;height:54px}.qr-box p[data-v-d119a05e]{color:var(--text-muted);font-size:13px}.section-card[data-v-d119a05e]{margin-bottom:1rem;padding:1rem}.info-section[data-v-d119a05e]{background:var(--surface-secondary)}.learn-grid[data-v-d119a05e],.school-facts[data-v-d119a05e]{gap:.4rem;padding-left:1rem;display:grid}.engine-section[data-v-d119a05e]{background:var(--surface-secondary)}.engine-code-grid[data-v-d119a05e]{grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem;margin-top:.7rem;display:grid}.engine-code[data-v-d119a05e]{background:var(--surface-soft);border:1px solid var(--border-color);border-radius:12px;padding:.75rem}.code-label[data-v-d119a05e]{color:var(--accent-main);margin-bottom:.3rem;font-size:14px;font-weight:700}.engine-code code[data-v-d119a05e]{white-space:pre-wrap;word-break:break-word;font-family:Courier 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