:root,[data-color-mode=light]{--main-background-color: #f0f2f5;--secondary-background-color: #fff;--text-color: #333;--header-text-color: white;--input-bg: #f9f9f9;--border-color: #ccc;--table-header-bg: #34495e;--table-row-even-bg: #ffffff;--table-row-odd-bg: #f2f2f2;--fdp-negative-bg: #ffe0e0;--link-color: #007bff}[data-color-mode=dark]{--main-background-color: #212121;--secondary-background-color: #2c2c2c;--text-color: #6d6d6d;--header-text-color: #6b6b6b;--input-bg: #3b3b3b;--border-color: #444444;--table-header-bg: #2c393f;--table-row-even-bg: #2a2a2a;--table-row-odd-bg: #252525;--fdp-negative-bg: #5c2727;--link-color: #66b0ff}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-moz-font-smoothing:grayscale;background-color:var(--main-background-color);color:var(--text-color)}#root{max-width:1200px;margin:0 auto;padding:0rem;text-align:center}.app-header-outside{display:flex;justify-content:space-between;align-items:center;max-width:760px;margin:5px auto}.app-header-outside h1{flex-grow:1;text-align:center;color:var(--text-color);font-size:1.8em;padding:0;margin:0 -10px 5px 0}.mode-toggle-btn{background:none;border:none;color:var(--text-color);transition:background-color .2s;padding:0;box-sizing:border-box;border-radius:5px;width:32px;height:32px;display:flex;justify-content:center;align-items:center;margin-top:3px;margin-right:10px}.mode-toggle-btn .mode-icon{display:block;width:20px;height:20px;max-width:100%;max-height:100%}.flight-duty-calculator{max-width:700px;margin:0 auto;padding:25px;background-color:var(--secondary-background-color);border-radius:8px;box-shadow:0 4px 12px #0000001a;font-family:Arial,sans-serif}h2,h3{color:var(--text-color);padding-bottom:10px;margin-top:25px}h5{color:var(--text-color);padding-bottom:0;padding-top:0;margin-top:0;font-weight:400;font-size:.9em}.input-group,.block-on-flex{display:flex;align-items:normal;justify-content:center;margin-bottom:10px;flex-direction:column;box-sizing:border-box;padding-left:0;padding-right:0;margin-left:0;margin-right:0;width:100%}.block-on-flex{margin-bottom:0}.input-group label{margin-bottom:8px;font-weight:700;color:var(--text-color);text-align:center;width:100%}input[type=text],input[type=number],input[type=time]{padding:10px;border:1px solid var(--border-color);border-radius:6px;font-size:1.1em;background-color:var(--input-bg);color:var(--text-color);transition:border-color .3s}button{background-color:var(--input-bg);color:var(--text-color);border:1px solid var(--border-color);padding:5px 20px;margin-top:5px;border-radius:6px;height:35px;font-size:.9em}.input-group.checkbox-group{flex-direction:row;align-items:center;margin-bottom:8px}.input-group.checkbox-group input[type=checkbox]{margin-right:10px;transform:scale(1.2)}.input-group.checkbox-group label{margin-bottom:0;text-align:left}.result{margin-top:15px;padding:3px;border:1px solid var(--border-color);border-radius:8px;background-color:var(--secondary-background-color)}.warning-message{margin-top:15px;padding:10px;background-color:var(--fdp-negative-bg);color:#c00;border-radius:6px;font-weight:700}.block-on-bust{border:4px solid #ff4444!important;background-color:var(--fdp-negative-bg)!important;box-shadow:0 0 15px #ff0000b3!important}.result h3{margin-bottom:0;padding-bottom:0}.fdp-table{width:95%;max-width:800px;margin:1rem auto 1.5rem;border-collapse:collapse;font-size:.95em;text-align:center;table-layout:fixed;border:1px solid var(--border-color);border-radius:8px;overflow:hidden}.fdp-table th,.fdp-table td{border:1px solid var(--border-color);padding:10px 8px}.fdp-table thead th{background-color:var(--table-header-bg);color:var(--header-text-color);font-weight:700}.fdp-table tbody td:first-child{font-weight:700;text-align:left}.fdp-table thead th:first-child{width:26%}.fdp-table tbody tr:nth-child(2n){background-color:var(--table-row-even-bg)}.fdp-table tbody tr:nth-child(odd){background-color:var(--table-row-odd-bg)}.fdp-negative{background-color:var(--fdp-negative-bg)}.breakdown-list{margin-top:5px;border-top:1px solid var(--border-color);padding-left:17px;padding-right:17px}.breakdown-list h3{color:var(--text-color);margin-bottom:8px;text-align:center;margin-top:1.5rem}.breakdown-list ul{list-style:none;margin-top:15px;margin-bottom:25px}.breakdown-list li{background-color:var(--input-bg);border:1px solid var(--border-color);border-radius:5px;padding:10px;margin-bottom:8px;color:var(--text-color);font-size:.9em;text-align:center;list-style:none}.app-footer{max-width:740px;margin:2px auto 0;padding:0px auto 0px auto;display:flex;justify-content:space-between;align-items:center;color:var(--text-color);font-weight:400;font-size:.9em}.version-info-btn{background:none;border:none;cursor:pointer;padding:0;text-decoration:underline;font-size:.95em;opacity:.9;transition:opacity .2s}.version-info-btn:hover{opacity:1}.app-footer .feedback-link{color:var(--text-color);text-decoration:underline;transition:color .2s}.modal-backdrop{position:fixed;top:0;left:0;width:100%;height:100%;background-color:#000000b3;display:flex;justify-content:center;align-items:center;z-index:1000}.modal-backdrop[data-color-mode=dark]{background-color:#000000d9}.modal-content{background-color:var(--secondary-background-color, white);color:var(--text-color, black);padding:30px;border-radius:8px;max-width:500px;max-height:80vh;overflow-y:auto;box-shadow:0 5px 15px #00000080;position:relative}.modal-content h2{border-bottom:2px solid var(--text-color);padding-bottom:10px;margin-top:0;text-align:left}.version-entry{margin-bottom:20px}.version-entry h3{margin:10px 0 5px;font-size:1.1em;text-align:left}.version-entry .date{font-weight:400;opacity:.7;font-size:.9em}.version-entry ul{margin:5px 0 0 15px;padding:0;list-style:disc;text-align:left}.modal-close-btn{display:block;width:100%;padding:10px;margin-top:20px;background-color:var(--input-bg, #007bff);color:var(--text-color, white);border:1px solid var(--border-color);border-radius:4px;cursor:pointer;font-size:1em}