.time-calculator-container{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;max-width:1200px;margin:0 auto;padding:30px;color:#333;line-height:1.6}h1,h2,h3{color:#01175E;margin-bottom:20px}h1{font-size:2.5rem;text-align:center;margin-bottom:30px}h2{font-size:1.8rem;border-bottom:2px solid #44D1AB;padding-bottom:10px;margin-top:40px}h3{font-size:1.4rem}.quick-answer-section{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;background-color:rgb(68 209 171 / .1);border-radius:15px;padding:30px;margin-bottom:40px}.quick-answer{flex:1;min-width:300px}.quick-answer span{font-size:1.6rem;font-weight:700;color:#01175E;line-height:1.4}.timer-container{display:flex;flex-direction:column;align-items:center;margin-left:20px}.timer{position:relative;width:160px;height:160px;display:flex;justify-content:center;align-items:center;margin-bottom:15px}.time{position:absolute;font-size:2rem;font-weight:700;color:#01175E;z-index:2}.progress-ring{position:absolute;top:0;left:0}.progress-ring__circle-bg{stroke-opacity:.3}.progress-ring__circle,.progress-ring__circle-challenge{stroke-dasharray:440;stroke-dashoffset:0;transform:rotate(-90deg);transform-origin:50% 50%;transition:stroke-dashoffset 1s linear}.timer-button,.challenge-button,.challenge-option{background-color:#44D1AB;color:#fff;border:none;padding:10px 20px;border-radius:25px;font-weight:700;cursor:pointer;transition:background-color 0.3s ease}.timer-button:hover,.challenge-button:hover,.challenge-option:hover{background-color:#01175E}.timer-button:disabled,.challenge-button:disabled{background-color:#ccc;cursor:not-allowed}.calculator-section{background-color:#f9f9f9;border-radius:15px;padding:30px;margin-bottom:40px;box-shadow:0 4px 8px rgb(0 0 0 / .1)}.calculator,.reverse-calculator{margin-bottom:30px}.input-group{display:flex;margin-bottom:20px}input{flex:1;padding:12px 15px;border:2px solid #ddd;border-radius:8px;font-size:1rem}input:focus{border-color:#44D1AB;outline:none}button{background-color:#01175E;color:#fff;border:none;padding:12px 20px;margin-left:10px;border-radius:8px;cursor:pointer;font-weight:700;transition:background-color 0.3s ease}button:hover{background-color:#44D1AB}.results{background-color:#fff;border-radius:8px;padding:20px;box-shadow:0 2px 4px rgb(0 0 0 / .05)}.result-item{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #eee}.result-item:last-child{border-bottom:none}.result-label{font-weight:700;color:#01175E}.result-value{color:#44D1AB;font-weight:600}.table-container{overflow-x:auto}.conversion-table{width:100%;border-collapse:collapse;margin-bottom:30px}.conversion-table th,.conversion-table td{padding:15px;text-align:center;border-bottom:1px solid #ddd}.conversion-table th{background-color:#01175E;color:#fff}.conversion-table tr:hover{background-color:rgb(68 209 171 / .1)}.highlighted{background-color:rgb(68 209 171 / .2);font-weight:700}.activities-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;margin-bottom:30px}.activity-card{background-color:#fff;border-radius:10px;padding:20px;box-shadow:0 4px 8px rgb(0 0 0 / .1);text-align:center;transition:transform 0.3s ease}.activity-card:hover{transform:translateY(-5px)}.activity-icon{font-size:2.5rem;margin-bottom:10px}.activity-title{font-weight:700;color:#01175E;margin-bottom:5px}.activity-time{color:#44D1AB}.historical-insight{background-color:rgb(1 23 94 / .05);border-left:4px solid #01175E;padding:20px;border-radius:0 10px 10px 0}.historical-insight p{margin-bottom:15px}.perception-container{margin:30px 0}.perception-item{margin-bottom:20px}.perception-title{font-weight:700;margin-bottom:5px}.perception-bar{height:20px;background-color:#e9e9e9;border-radius:10px;overflow:hidden}.perception-fill{height:100%;background-color:#44D1AB;border-radius:10px}.perception-label{text-align:right;font-size:.9rem;color:#666;margin-top:5px}.perception-note{font-style:italic;color:#666}.challenge-container{background-color:#f9f9f9;border-radius:15px;padding:30px;text-align:center}.challenge-options{display:flex;justify-content:center;flex-wrap:wrap;gap:15px;margin:20px 0}.challenge-timer-container{display:flex;flex-direction:column;align-items:center;margin:30px 0}.challenge-timer-display{margin-bottom:20px}.challenge-message{background-color:#44D1AB;color:#fff;padding:15px;border-radius:10px;font-weight:700;animation:fadeIn 0.5s ease}@keyframes fadeIn{from{opacity:0}to{opacity:1}}.advanced-table{width:100%;border-collapse:collapse}.advanced-table td{padding:12px 15px;border-bottom:1px solid #ddd}.advanced-table tr td:first-child{font-weight:700;color:#01175E;width:40%}.advanced-table tr:nth-child(even){background-color:rgb(68 209 171 / .05)}@media (max-width:768px){.time-calculator-container{padding:15px}h1{font-size:2rem}.quick-answer-section{flex-direction:column;padding:20px}.quick-answer{margin-bottom:20px;min-width:auto}.quick-answer span{font-size:1.2rem}.input-group{flex-direction:column}input{margin-bottom:10px}button{margin-left:0}.activities-grid{grid-template-columns:1fr}}