* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Cairo', sans-serif; }     .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }     .calculator { background: #fff; padding: 20px; border-radius: 16px; box-shadow: 0 4px 12px rgba(0,0,0,0.04); margin: 20px 0; border: 1px solid #e0e7ef; }     .science-header { text-align: center; margin-bottom: 20px; }     .science-title { color: #1a4b5f; font-size: 1.4rem; font-weight: 700; margin-bottom: 5px; }     .science-sub { color: #3a6b6b; font-size: 1rem; }     .countdown-wrapper { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin: 25px 0; }     .countdown-box { background: #f6f9fc; border-radius: 14px; padding: 8px 6px; min-width: 70px; text-align: center; border: 1px solid #d0ddee; flex: 1 1 70px; }     .countdown-number { display: block; font-size: 1.8rem; font-weight: 700; color: #1a3f5c; line-height: 1; }     .countdown-label { font-size: 0.75rem; color: #2e546a; font-weight: 600; margin-top: 4px; display: block; }     .date-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: stretch; background: #f2f6fc; border-radius: 14px; padding: 12px; margin: 20px 0; border: 1px solid #c9d8e8; }     .date-item { text-align: center; flex: 1 1 100%; display: flex; flex-direction: row; align-items: center; justify-content: space-between; padding: 0 10px; }     .date-label { font-size: 1rem; font-weight: 700; color: #1a3f5c; white-space: nowrap; }     .date-value { font-size: 1rem; font-weight: 700; color: #1a3f5c; white-space: nowrap; }     .date-extra { font-size: 1rem; font-weight: 700; color: #1a3f5c; display: inline-block; padding: 2px 12px; border-radius: 20px; white-space: nowrap; }     .extra-stats { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: stretch; margin: 20px 0; background: #fefcf5; padding: 12px; border-radius: 16px; border: 1px solid #ecdca8; }     .stat-item { text-align: center; flex: 1 1 30%; display: flex; flex-direction: column; justify-content: center; }     .stat-number { font-size: 0.75rem; font-weight: 700; color: #7a5c2e; line-height: 1.4; }     .stat-label { font-size: 1.1rem; color: #6b4f2a; }     .progress-section { margin: 25px 0; }     .progress-label { display: flex; justify-content: space-between; font-size: 0.8rem; color: #3a5f5f; margin-bottom: 6px; }     .progress-bar-bg { background: #e1e9ef; height: 10px; border-radius: 20px; overflow: hidden; }     .progress-fill { background: #6b9e9e; height: 10px; width: 0%; border-radius: 20px; transition: width 0.3s ease; }     .footer-note { margin-top: 30px; font-size: 0.85rem; color: #5a6c7d; text-align: center; border-top: 1px solid #dce5ec; padding-top: 20px; }     @media (max-width: 768px) {       .science-title { font-size: 1.4rem; }       .countdown-wrapper { gap: 8px; flex-wrap: wrap; justify-content: center; padding-bottom: 6px; }       .countdown-box { flex: 0 0 calc(33.333% - 8px); min-width: 80px; padding: 8px 6px; white-space: normal; }       .countdown-number { font-size: 1.5rem; }       .countdown-label { font-size: 0.7rem; }       .date-row { padding: 12px; }       .date-item { flex-direction: column; align-items: center; }       .date-label { margin-bottom: 6px; }       .date-value { margin-bottom: 4px; }       .date-extra { margin: 0 auto; }       .extra-stats { display: flex; flex-wrap: wrap; gap: 8px; }       .extra-stats .stat-item { flex: 0 0 calc(50% - 4px); max-width: calc(50% - 4px); box-sizing: border-box; min-width: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 6px; }       .extra-stats .stat-item:nth-child(3) { flex: 0 0 100%; max-width: 100%; margin-top: 8px; }       .stat-number { font-size: 0.7rem; }       .stat-label { font-size: 1rem; }     }     @media (max-width: 480px) {       .science-title { font-size: 1.2rem; }       .countdown-wrapper { gap: 6px; flex-wrap: wrap; justify-content: center; padding-bottom: 6px; }       .countdown-box { flex: 0 0 calc(33.333% - 6px); min-width: 70px; padding: 6px 6px; white-space: normal; }       .countdown-number { font-size: 1.2rem; }       .countdown-label { font-size: 0.62rem; }       .date-row { padding: 10px; }       .date-item { flex-direction: column; align-items: center; }       .date-label { margin-bottom: 4px; }       .date-value { margin-bottom: 4px; }       .date-extra { margin: 0 auto; }       .extra-stats { display: flex; flex-wrap: wrap; gap: 8px; }       .extra-stats .stat-item { flex: 0 0 calc(50% - 4px); max-width: calc(50% - 4px); box-sizing: border-box; min-width: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 6px; }       .extra-stats .stat-item:nth-child(3) { flex: 0 0 100%; max-width: 100%; margin-top: 8px; }       .stat-number { font-size: 0.68rem; }       .stat-label { font-size: 0.95rem; }       .progress-label { font-size: 0.82rem; }       .progress-bar-bg { height: 8px; }       .progress-fill { height: 8px; }     }