:root{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6;font-weight:400;color-scheme:light dark;color:#333;background-color:#f1f5f9;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;display:flex;justify-content:center;align-items:flex-start;min-width:320px;min-height:100vh;width:100%}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: dark){:root{color:#e1e5e9;background-color:#1a1d21}}.container{max-width:700px;width:100%;margin:0 auto;padding:1.5rem;min-height:100vh;display:flex;flex-direction:column}header{text-align:center;margin-bottom:3rem;position:relative;border-bottom:2px solid #e9ecef;padding-bottom:2rem}@media (prefers-color-scheme: dark){header{border-bottom-color:#343a40}}header h1{font-size:2.2rem;margin:0;color:#2d3748;font-weight:600;letter-spacing:-.025em}@media (prefers-color-scheme: dark){header h1{color:#f7fafc}}header p{font-size:1rem;margin:.75rem 0 0;color:#718096;font-weight:400}.countdown-timer{position:absolute;top:0;right:0;text-align:right;font-family:SF Mono,Monaco,Cascadia Code,monospace}.countdown-label{font-size:.75rem;margin-bottom:.25rem;color:#6b7280;font-weight:500;text-transform:uppercase;letter-spacing:.05em}.countdown-time{font-size:1.1rem;font-weight:600;color:#dc2626;font-variant-numeric:tabular-nums}@media (prefers-color-scheme: dark){.countdown-label{color:#9ca3af}.countdown-time{color:#f87171}}main{flex:1}.game-section{background:#fff;border-radius:12px;padding:2.5rem;border:1px solid #e2e8f0;box-shadow:0 1px 3px #0000001a}@media (prefers-color-scheme: dark){.game-section{background:#2d3748;border:1px solid #4a5568;box-shadow:0 1px 3px #0000004d}}.time-display{text-align:center;margin-bottom:2.5rem;padding:1.5rem;background:#f8fafc;border-radius:8px;border:1px solid #e2e8f0}@media (prefers-color-scheme: dark){.time-display{background:#1a202c;border-color:#2d3748}}.time-display h2{font-size:1.1rem;margin:0 0 1rem;color:#4a5568;font-weight:500;text-transform:uppercase;letter-spacing:.05em}@media (prefers-color-scheme: dark){.time-display h2{color:#a0aec0}}.time{font-size:2.5rem;font-weight:600;font-family:SF Mono,Monaco,Cascadia Code,monospace;color:#2b6cb0;margin-bottom:0;font-variant-numeric:tabular-nums}@media (prefers-color-scheme: dark){.time{color:#63b3ed}}.guess-section{margin-bottom:2rem;display:flex;gap:.75rem;align-items:stretch}.input-container{position:relative;flex:1}.input-container input{width:100%;padding:.875rem 1rem;font-size:1rem;border:2px solid #d1d5db;border-radius:6px;background:#fff;color:#374151;outline:none;transition:border-color .2s ease;box-sizing:border-box}.input-container input:focus{border-color:#3b82f6;box-shadow:0 0 0 3px #3b82f61a}@media (prefers-color-scheme: dark){.input-container input{background:#374151;color:#f9fafb;border-color:#4b5563}.input-container input:focus{border-color:#60a5fa;box-shadow:0 0 0 3px #60a5fa33}}.dropdown{position:absolute;top:100%;left:0;right:0;background:#fff;border:2px solid #d1d5db;border-top:none;border-radius:0 0 6px 6px;box-shadow:0 4px 6px #0000001a;max-height:200px;overflow-y:auto;z-index:100}@media (prefers-color-scheme: dark){.dropdown{background:#374151;border-color:#4b5563;box-shadow:0 4px 6px #0000004d}}.dropdown-item{padding:.75rem 1rem;cursor:pointer;border-bottom:1px solid #f3f4f6;color:#374151;transition:background-color .15s ease;display:flex;align-items:center;gap:.5rem}.dropdown-item .flag{width:20px;height:15px;object-fit:cover;border-radius:2px;flex-shrink:0}.dropdown-item .flag span{font-size:1.1em;width:1.2em;text-align:center}.dropdown-item:last-child{border-bottom:none}.dropdown-item:hover,.dropdown-item.selected{background:#f3f4f6;color:#1f2937}@media (prefers-color-scheme: dark){.dropdown-item{color:#f9fafb;border-bottom-color:#4b5563}.dropdown-item:hover,.dropdown-item.selected{background:#4b5563;color:#fff}}.guess-section button{padding:.875rem 1.5rem;font-size:.95rem;font-weight:500;background:#3b82f6;color:#fff;border:none;border-radius:6px;cursor:pointer;transition:background-color .2s ease;white-space:nowrap}.guess-section button:hover:not(:disabled){background:#2563eb}.guess-section button:disabled{opacity:.5;cursor:not-allowed;background:#9ca3af}.feedback{margin-bottom:2rem;min-height:150px;space-y:.5rem}.hint{background:#f3f4f6;border-left:3px solid #6b7280;padding:.875rem 1rem;margin-bottom:.75rem;border-radius:0 4px 4px 0;font-size:.95rem;color:#374151;animation:slideIn .2s ease}.hint.correct{background:#dcfce7;border-left-color:#16a34a;color:#166534;font-weight:500}.hint.game-over{background:#fee2e2;border-left-color:#dc2626;color:#991b1b;font-weight:500}.hint.distance-very-close{background:#dcfce7;border-left-color:#16a34a;color:#166534}.hint.distance-close{background:#dbeafe;border-left-color:#2563eb;color:#1e40af}.hint.distance-medium{background:#fef3c7;border-left-color:#d97706;color:#92400e}.hint.distance-far{background:#fed7aa;border-left-color:#ea580c;color:#c2410c}.hint.distance-very-far{background:#fee2e2;border-left-color:#dc2626;color:#991b1b}@media (prefers-color-scheme: dark){.hint{background:#374151;color:#d1d5db;border-left-color:#6b7280}.hint.correct{background:#064e3b;color:#6ee7b7;border-left-color:#10b981}.hint.game-over{background:#7f1d1d;color:#fca5a5;border-left-color:#dc2626}.hint.distance-very-close{background:#064e3b;color:#6ee7b7;border-left-color:#10b981}.hint.distance-close{background:#1e3a8a;color:#93c5fd;border-left-color:#3b82f6}.hint.distance-medium{background:#78350f;color:#fbbf24;border-left-color:#f59e0b}.hint.distance-far{background:#9a3412;color:#fdba74;border-left-color:#ea580c}.hint.distance-very-far{background:#7f1d1d;color:#fca5a5;border-left-color:#dc2626}}@keyframes slideIn{0%{opacity:0;transform:translate(-20px)}to{opacity:1;transform:translate(0)}}.stats{display:flex;justify-content:space-between;align-items:center;padding-top:1.5rem;border-top:1px solid #e5e7eb;font-weight:500;color:#6b7280;font-size:.9rem}@media (prefers-color-scheme: dark){.stats{color:#9ca3af;border-top-color:#374151}}.win-message{background:#16a34a;color:#fff;padding:1rem 1.25rem;border-radius:6px;font-weight:500;margin-top:1.5rem;text-align:center}.lose-message{background:#dc2626;color:#fff;padding:1rem 1.25rem;border-radius:6px;font-weight:500;margin-top:1.5rem;text-align:center}.loading{display:flex;align-items:center;justify-content:center;min-height:200px;font-size:1.2rem;color:#7f8c8d}@media (prefers-color-scheme: dark){.loading{color:#bdc3c7}}@media (max-width: 640px){.container{padding:1rem .5rem}.game-section{padding:1.5rem;margin:.5rem 0}.time{font-size:2.5rem}.guess-section{flex-direction:column;gap:1rem}.input-container input{width:100%;max-width:none;padding:1rem;font-size:1.1rem;border-radius:8px;box-sizing:border-box}.stats{flex-direction:column;gap:.5rem}.countdown-timer{position:static;text-align:center;margin-bottom:1rem}.countdown-time{font-size:1rem}}.modal-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-content{background:#fff;border-radius:8px;border:1px solid #e5e7eb;max-width:450px;width:100%;max-height:90vh;overflow:hidden;box-shadow:0 4px 6px #0000001a;animation:modalSlideIn .2s ease-out}@media (prefers-color-scheme: dark){.modal-content{background:#1f2937;border:1px solid #374151;color:#f9fafb}}@keyframes modalSlideIn{0%{opacity:0;transform:translateY(-30px) scale(.9)}to{opacity:1;transform:translateY(0) scale(1)}}.modal-header{padding:1.5rem 1.5rem 1rem;border-bottom:1px solid rgba(0,0,0,.1);display:flex;justify-content:space-between;align-items:center}@media (prefers-color-scheme: dark){.modal-header{border-bottom:1px solid rgba(255,255,255,.1)}}.modal-header h2{margin:0;font-size:1.5rem;font-weight:700}.modal-close{background:none;border:none;font-size:1.5rem;cursor:pointer;padding:.25rem;color:#7f8c8d;transition:color .2s ease}.modal-close:hover{color:#e74c3c}.modal-body{padding:1.5rem}.share-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-bottom:1.5rem;max-width:300px;margin-left:auto;margin-right:auto}.stat{text-align:center;padding:1rem;background:#0000000d;border-radius:12px;border:1px solid rgba(0,0,0,.1)}@media (prefers-color-scheme: dark){.stat{background:#ffffff0d;border:1px solid rgba(255,255,255,.1)}}.stat-label{display:block;font-size:.8rem;opacity:.7;margin-bottom:.25rem;text-transform:uppercase;letter-spacing:.5px}.stat-value{display:block;font-size:1.2rem;font-weight:700;color:#667eea}@media (prefers-color-scheme: dark){.stat-value{color:#764ba2}}.share-text{margin-bottom:1.5rem}.share-text h3{margin:0 0 .75rem;font-size:1.1rem;font-weight:600}.share-textarea{width:100%;min-height:120px;padding:1rem;border:2px solid #e0e0e0;border-radius:12px;font-family:Courier New,monospace;font-size:.9rem;line-height:1.4;background:#ffffffb3;color:#2c3e50;resize:vertical;outline:none;transition:border-color .3s ease;box-sizing:border-box}.share-textarea:focus{border-color:#667eea}@media (prefers-color-scheme: dark){.share-textarea{background:#ffffff1a;color:#ecf0f1;border-color:#ffffff4d}.share-textarea:focus{border-color:#764ba2}}.modal-footer{padding:1rem 1.5rem 1.5rem;display:flex;gap:1rem;justify-content:flex-end}.copy-button{background:#3b82f6;color:#fff;border:none;padding:.75rem 1.25rem;border-radius:6px;font-size:.95rem;font-weight:500;cursor:pointer;transition:background-color .2s ease}.copy-button:hover:not(:disabled){background:#2563eb}.copy-button.copying{background:#f59e0b;cursor:not-allowed}.copy-button.copied{background:#16a34a;animation:copySuccess .2s ease}@keyframes copySuccess{0%{transform:scale(1)}50%{transform:scale(1.05)}to{transform:scale(1)}}.close-button{background:#0000001a;color:#7f8c8d;border:none;padding:.75rem 1.5rem;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .3s ease}.close-button:hover{background:#0003;color:#2c3e50}@media (prefers-color-scheme: dark){.close-button{background:#ffffff1a;color:#bdc3c7}.close-button:hover{background:#fff3;color:#ecf0f1}}@media (max-width: 640px){.modal-overlay{padding:1rem .25rem .25rem;align-items:flex-start}.modal-content{margin:0;max-height:calc(100vh - 2rem);width:calc(100% - .5rem);max-width:none;display:flex;flex-direction:column}.modal-header{padding:.75rem;flex-shrink:0}.modal-header h2{font-size:1.25rem}.modal-body{padding:.75rem;flex:1;overflow-y:auto;min-height:0}.modal-footer{padding:.75rem;flex-direction:column;gap:.5rem;border-top:1px solid rgba(0,0,0,.1);flex-shrink:0}@media (prefers-color-scheme: dark){.modal-footer{border-top:1px solid rgba(255,255,255,.1)}}.share-stats{grid-template-columns:repeat(2,1fr);gap:.5rem;margin-bottom:1rem;max-width:250px}.stat{padding:.5rem}.stat-label{font-size:.7rem;margin-bottom:.125rem}.stat-value{font-size:1rem}.copy-button,.close-button{width:100%;padding:.875rem;font-size:.9rem;white-space:nowrap}.share-textarea{min-height:80px;font-size:.8rem;padding:.75rem}.share-text h3{font-size:1rem;margin-bottom:.5rem}}@media (max-width: 640px) and (min-height: 740px){.modal-overlay{padding-top:2rem}.modal-content{max-height:calc(100vh - 4rem)}.modal-body,.modal-footer{padding:1rem}.share-textarea{min-height:100px}}.ad-container{display:flex;justify-content:center;align-items:center;margin:1rem 0;min-height:90px}.header-ad{margin:1.5rem 0 0;padding:1rem;border:1px dashed #e5e7eb;border-radius:8px;background:#00000005}@media (prefers-color-scheme: dark){.header-ad{border-color:#374151;background:#ffffff05}}.game-end-ad{margin:2rem 0;padding:1rem;border:1px dashed #e5e7eb;border-radius:8px;background:#00000005}@media (prefers-color-scheme: dark){.game-end-ad{border-color:#374151;background:#ffffff05}}.educational-content{margin-top:3rem;padding:2rem;background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-radius:12px;border:1px solid #dee2e6}@media (prefers-color-scheme: dark){.educational-content{background:linear-gradient(135deg,#2d3748,#1a202c);border-color:#4a5568}}.educational-content section{margin-bottom:2rem}.educational-content section:last-child{margin-bottom:0}.educational-content h2{color:#2d3748;font-size:1.3rem;font-weight:600;margin-bottom:1rem;border-bottom:2px solid #3182ce;padding-bottom:.5rem;display:inline-block}@media (prefers-color-scheme: dark){.educational-content h2{color:#e2e8f0;border-bottom-color:#63b3ed}}.educational-content p{color:#4a5568;line-height:1.6;margin-bottom:1rem}@media (prefers-color-scheme: dark){.educational-content p{color:#a0aec0}}.educational-content ul{list-style:none;padding-left:0}.educational-content li{color:#4a5568;line-height:1.6;margin-bottom:.75rem;padding-left:1.5rem;position:relative}@media (prefers-color-scheme: dark){.educational-content li{color:#a0aec0}}.educational-content li:before{content:"🎯";position:absolute;left:0;font-size:1rem}.how-to-play li:before{content:"🎮"}.timezone-education li:before{content:"🌍"}.geography-tips li:before{content:"💡"}.educational-content strong{color:#2d3748;font-weight:600}@media (prefers-color-scheme: dark){.educational-content strong{color:#e2e8f0}}.ad-container{margin-top:2rem;padding:1rem;text-align:center}.footer{margin-top:2rem;padding-top:2rem}.footer-ad{margin:0;padding:1rem}.ad-unit{width:100%;height:auto;display:flex;align-items:center;justify-content:center;color:#9ca3af;font-size:.875rem}.ad-unit:empty:after{content:"Advertisement";opacity:.5}.left-sidebar-ad,.right-sidebar-ad{flex-shrink:0;width:160px;min-height:600px;padding:1rem;border:1px dashed #e5e7eb;border-radius:8px;background:#00000005;position:sticky;top:2rem}@media (prefers-color-scheme: dark){.left-sidebar-ad,.right-sidebar-ad{border-color:#374151;background:#ffffff05}}@media (max-width: 1200px){.app-wrapper{flex-direction:column;align-items:center;padding:0 1rem}.left-sidebar-ad,.right-sidebar-ad{display:none}.container{margin:0 auto}}@media (max-width: 640px){.header-ad,.game-end-ad,.footer-ad{margin-left:-.5rem;margin-right:-.5rem}.ad-container{margin:1rem 0;min-height:100px}}.footer-links{text-align:center;margin-top:1.5rem;padding-top:1rem;font-size:.9rem}.footer-links a{color:#6b7280;text-decoration:none;transition:color .2s ease}.footer-links a:hover{color:#374151;text-decoration:underline}@media (prefers-color-scheme: dark){.footer-links a{color:#9ca3af}.footer-links a:hover{color:#d1d5db}}.footer-links .separator{margin:0 .75rem;color:#9ca3af;font-weight:700}@media (prefers-color-scheme: dark){.footer-links .separator{color:#6b7280}}