*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:-apple-system,BlinkMacSystemFont,segoe ui,Roboto,Oxygen,Ubuntu,sans-serif;background-color:#1a2332;color:#f1faee;line-height:1.6;min-height:100vh;display:flex;flex-direction:column}main{flex:1;padding:2rem 0}.container{max-width:1200px;margin:0 auto;padding:0 1rem}a{color:#a8dadc;text-decoration:none}a:hover{color:#3aa8a8;text-decoration:underline}h1{font-size:clamp(1.75rem,4vw,2.5rem);line-height:1.2;margin-bottom:1rem}h2{font-size:clamp(1.375rem,3vw,2rem);line-height:1.2;margin-bottom:.75rem}h3{font-size:clamp(1.125rem,2vw,1.5rem);line-height:1.3;margin-bottom:.5rem}p{margin-bottom:1rem}ul,ol{padding-left:1.5rem;margin-bottom:1rem}.btn{display:inline-block;padding:.75rem 1.5rem;background:#2d8b8b;color:#f1faee;border:none;border-radius:4px;font-size:1rem;cursor:pointer;transition:background .2s}.btn:hover{background:#266;color:#f1faee;text-decoration:none}.card{background:#111c2b;border-radius:8px;padding:1.5rem;margin-bottom:1rem}.tag{display:inline-block;background:#2d8b8b;color:#f1faee;font-size:.75rem;padding:.25rem .5rem;border-radius:4px}.ad-unit{margin:2rem 0;text-align:center}.site-header{background:#111c2b;height:82px;position:sticky;top:0;z-index:100;border-bottom:1px solid rgba(168,218,220,.15)}.site-header__inner{max-width:1200px;margin:0 auto;padding:0 1rem;height:100%;display:flex;align-items:center;justify-content:space-between}.site-logo{display:flex;align-items:center;gap:.5rem;color:#f1faee;font-size:1.125rem;font-weight:700}.site-logo:hover{color:#a8dadc;text-decoration:none}.site-logo img{height:54px;width:auto}.site-nav__list{display:flex;list-style:none;gap:1.5rem;padding:0;margin:0}.site-nav__link{color:rgba(241,250,238,.85);font-size:1rem;transition:color .2s}.site-nav__link:hover{color:#a8dadc;text-decoration:none}.site-nav__link.active{color:#3aa8a8}@media(max-width:768px){.site-nav{display:none}}.site-footer{background:#111c2b;border-top:1px solid rgba(168,218,220,.15);padding:2rem 0;margin-top:3rem;font-size:.875rem;color:rgba(241,250,238,.7)}.site-footer__inner{max-width:1200px;margin:0 auto;padding:0 1rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.site-footer__links{display:flex;gap:1rem;list-style:none;padding:0;margin:0}.site-footer__links a{color:rgba(241,250,238,.7)}.site-footer__links a:hover{color:#a8dadc}.site-footer__tagline{font-style:italic;color:rgba(241,250,238,.5)}.hero{padding:4rem 0 3rem;text-align:center;background:linear-gradient(135deg,#111c2b 0%,#1a2332 100%);border-bottom:1px solid rgba(168,218,220,.15)}.hero__tagline{font-size:clamp(2rem,5vw,3rem);font-weight:700;color:#f1faee;margin-bottom:1rem}.hero__tagline span{color:#3aa8a8}.hero__sub{font-size:clamp(1rem,2vw,1.25rem);color:rgba(241,250,238,.8);max-width:640px;margin:0 auto 2rem}.hero__actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin-top:2rem}.feature-card{background:#111c2b;border:1px solid rgba(168,218,220,.15);border-radius:8px;padding:1.5rem;text-align:left;transition:border-color .2s}.feature-card:hover{border-color:#2d8b8b;text-decoration:none}.feature-card h3{color:#3aa8a8;margin-bottom:.5rem}.feature-card p{color:rgba(241,250,238,.75);font-size:.9rem;margin:0}.city-hero{display:flex;align-items:center;gap:1rem;padding:2rem 0 1.5rem;border-bottom:1px solid rgba(168,218,220,.15);margin-bottom:1.5rem}.city-hero__flag{font-size:3rem;line-height:1;flex-shrink:0}.city-hero__name{font-size:2rem;color:#f1faee;margin:0 0 .25rem}.city-hero__sub{color:rgba(241,250,238,.65);font-size:.95rem;margin:0}.city-hero__iata{background:rgba(45,139,139,.2);color:#3aa8a8;border-radius:4px;padding:.1em .4em;font-size:.85em;font-family:monospace;letter-spacing:.05em}.city-clock{background:rgba(17,28,43,.6);border:1px solid rgba(168,218,220,.12);border-radius:8px;padding:1.5rem 2rem;text-align:center;margin-bottom:1.5rem}.city-clock__time{font-size:3.5rem;font-weight:700;color:#f1faee;letter-spacing:.05em;line-height:1}.city-clock__date{color:rgba(241,250,238,.7);font-size:1rem;margin-top:.5rem}.city-clock__offset{display:inline-block;background:#266;color:#a8dadc;border-radius:4px;padding:.2em .6em;font-size:.85rem;font-family:monospace;margin-top:.5rem}.city-clock__diff{color:rgba(241,250,238,.55);font-size:.9rem;margin-top:.5rem}.city-info-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:.75rem;margin-bottom:1.5rem}.city-info-card{background:rgba(17,28,43,.5);border:1px solid rgba(168,218,220,.1);border-radius:4px;padding:.75rem 1rem}.city-info-card dt{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:#3aa8a8;margin-bottom:.25rem}.city-info-card dd{color:#f1faee;font-size:.95rem;margin:0}.travel-tip{background:rgba(34,102,102,.12);border-left:3px solid #2d8b8b;border-radius:0 4px 4px 0;padding:1rem 1.5rem;margin-bottom:1.5rem}.travel-tip h2{font-size:1.1rem;color:#a8dadc;margin:0 0 .75rem}.travel-tip p{color:rgba(241,250,238,.85);font-size:.95rem;line-height:1.65;margin:0}.font-mono{font-family:courier new,Courier,monospace}.badge{display:inline-block;border-radius:4px}@media(max-width:600px){.city-hero__name{font-size:1.4rem}.city-clock__time{font-size:2.5rem}.city-info-grid{grid-template-columns:1fr 1fr}}.route-page h1{font-size:1.8rem;color:#f1faee;margin:2rem 0 1rem;line-height:1.3}.route-hero{display:flex;align-items:center;gap:1rem;padding:1.5rem 0;border-bottom:1px solid rgba(168,218,220,.15);margin-bottom:1.5rem}.route-hero__city{flex:1;background:rgba(17,28,43,.5);border:1px solid rgba(168,218,220,.1);border-radius:8px;padding:1rem 1.5rem;text-align:center}.route-hero__flag{font-size:2.5rem;line-height:1;margin-bottom:.5rem}.route-hero__name{font-size:1.2rem;font-weight:600;color:#f1faee;margin-bottom:.25rem}.route-hero__meta{font-size:.85rem;color:rgba(241,250,238,.55)}.route-hero__time{font-size:1.6rem;font-weight:700;color:#3aa8a8;margin-top:.5rem}.route-hero__connector{font-size:2rem;color:#2d8b8b;flex-shrink:0}.arrival-form{display:flex;flex-wrap:wrap;gap:.75rem 1rem;align-items:center;margin:.75rem 0}.arrival-form label{color:rgba(241,250,238,.8);font-size:.9rem}.arrival-form input{background:rgba(17,28,43,.8);border:1px solid rgba(168,218,220,.2);border-radius:4px;color:#f1faee;padding:.5rem .75rem;font-size:.95rem;font-family:monospace}.arrival-form input:focus{outline:2px solid #2d8b8b;outline-offset:2px}.arrival-output{color:#a8dadc;font-size:.95rem;min-height:1.4em}.jetlag-meter{height:12px;background:rgba(17,28,43,.6);border:1px solid rgba(168,218,220,.12);border-radius:4px;overflow:hidden;margin:.75rem 0 .5rem}.jetlag-meter__bar{height:100%;border-radius:4px;background:#2d8b8b;transition:width .5s ease}.jetlag-meter__bar[data-severity=moderate]{background:#e6b840}.jetlag-meter__bar[data-severity=significant]{background:#e67e22}.jetlag-meter__bar[data-severity=severe]{background:#c0392b}@media(max-width:600px){.route-page h1{font-size:1.4rem}.route-hero{flex-direction:column;gap:.5rem}.route-hero__connector{transform:rotate(90deg)}.route-hero__city{width:100%}}.tool-hero{padding:2rem 0 1.5rem;border-bottom:1px solid rgba(168,218,220,.15);margin-bottom:1.5rem}.tool-hero h1{font-size:2rem;color:#f1faee;margin:0 0 .75rem;line-height:1.25}.tool-hero p{color:rgba(241,250,238,.7);font-size:1.05rem;margin:0;max-width:640px}.tool-form{background:rgba(17,28,43,.5);border:1px solid rgba(168,218,220,.1);border-radius:8px;padding:1.5rem;margin-bottom:1.5rem}.tool-form__row{display:flex;flex-wrap:wrap;gap:1rem;align-items:flex-end;margin-bottom:1rem}.tool-form__row:last-child{margin-bottom:0}.tool-form__field{display:flex;flex-direction:column;gap:.25rem;flex:1;min-width:200px}.tool-form__field label{font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;color:#3aa8a8}.tool-form__field input,.tool-form__field select{background:rgba(26,35,50,.8);border:1px solid rgba(168,218,220,.2);border-radius:4px;color:#f1faee;padding:.5rem .75rem;font-size:.95rem;font-family:-apple-system,BlinkMacSystemFont,segoe ui,Roboto,Oxygen,Ubuntu,sans-serif;width:100%;color-scheme:dark}.tool-form__field input:focus,.tool-form__field select:focus{outline:2px solid #2d8b8b;outline-offset:2px}.tool-form__field input option,.tool-form__field select option{background:#111c2b;color:#f1faee}.tool-btn{background:#2d8b8b;color:#f1faee;border:none;border-radius:4px;padding:.5rem 1.5rem;font-size:1rem;font-family:-apple-system,BlinkMacSystemFont,segoe ui,Roboto,Oxygen,Ubuntu,sans-serif;cursor:pointer;white-space:nowrap;transition:background .15s ease}.tool-btn:hover{background:#3aa8a8}.tool-btn:focus{outline:2px solid #a8dadc;outline-offset:2px}.tool-form__error{color:#e67e22;font-size:.9rem;min-height:1.2em}.tool-output{display:none;background:rgba(17,28,43,.6);border:1px solid rgba(45,139,139,.3);border-radius:8px;padding:1.5rem;margin-bottom:1.5rem}.tool-output.is-visible{display:block}.tool-output__grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:.75rem;margin-bottom:1rem}.tool-output__grid:last-child{margin-bottom:0}.tool-output__card{background:rgba(26,35,50,.5);border:1px solid rgba(168,218,220,.1);border-radius:4px;padding:.75rem 1rem}.tool-output__card .label{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:#3aa8a8;margin-bottom:.25rem}.tool-output__card .value{font-size:1.4rem;font-weight:700;color:#f1faee}.tool-output__card .unit{font-size:.8rem;color:rgba(241,250,238,.55);margin-top:.25rem}.tool-output__tip{background:rgba(34,102,102,.12);border-left:3px solid #2d8b8b;border-radius:0 4px 4px 0;padding:.75rem 1rem;color:rgba(241,250,238,.85);font-size:.95rem;line-height:1.6}.countdown{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-bottom:1rem}.countdown__unit{text-align:center;min-width:70px}.countdown__number{font-size:3rem;font-weight:700;color:#f1faee;font-family:monospace;line-height:1}.countdown__label{font-size:.75rem;text-transform:uppercase;letter-spacing:.1em;color:rgba(241,250,238,.5);margin-top:.25rem}@media(max-width:600px){.tool-hero h1{font-size:1.5rem}.tool-form{padding:1rem}.tool-form__field{min-width:100%}.tool-output__grid{grid-template-columns:1fr 1fr}.countdown__number{font-size:2.2rem}}.tc-heading{font-size:1.1rem;color:#3aa8a8;margin-bottom:1rem;font-weight:600}.tc-table{width:100%;border-collapse:collapse}.tc-table th{text-align:center;padding:.5rem;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:#3aa8a8;border-bottom:1px solid rgba(168,218,220,.15)}.tc-table td{border:1px solid rgba(168,218,220,7%);padding:.5rem;vertical-align:top}.tc-table .tc-empty{background:rgba(17,28,43,.4)}.tc-table .tc-cell{background:rgba(26,35,50,.3)}.tc-table .tc-today{border-color:#2d8b8b;background:rgba(45,139,139,8%)}.tc-day{display:block;font-size:1rem;font-weight:700;color:#f1faee;margin-bottom:2px}.tc-moon{display:block;font-size:.85rem;margin-bottom:2px}.tc-sr,.tc-ss{display:block;font-size:.68rem;color:rgba(241,250,238,.55)}.moon-symbol{display:block;font-size:5rem;line-height:1;text-align:center;margin:1.5rem auto 1rem}@media(max-width:700px){.tc-table td{padding:.25rem}.tc-sr,.tc-ss{display:none}}