:root{--bg:#f6f7f3;--paper:#fff;--ink:#21392f;--muted:#79847b;--green:#3b6551;--line:#e4e8df;--soft:#edf2e8;--amber:#956b2c;font-family:Pretendard,-apple-system,BlinkMacSystemFont,'Segoe UI','Noto Sans KR',sans-serif;color:var(--ink);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.55;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #91b59d;outline-offset:3px}button{border:0}button:active:not(:disabled){transform:translateY(1px)}.demo-banner{background:#fff0cf;color:#745320;padding:12px;text-align:center;font-size:13px;border-block:1px solid #edd9a4}main{max-width:1040px;margin:auto;padding:0 32px}.hero{text-align:center;padding:65px 0 32px}.eyebrow{font-size:11px;letter-spacing:2px;font-weight:650;color:var(--muted);margin:0 0 15px}.hero .eyebrow{letter-spacing:.8px;font-size:12px;display:flex;align-items:center;justify-content:center;gap:8px}.hero h1{font-size:46px;letter-spacing:-2.5px;line-height:1.36;font-weight:650;margin:23px 0}.hero h1 span{color:#6d856a}.hero p{font-size:15px;color:var(--muted);line-height:1.9}.hero-line{display:flex;align-items:center;justify-content:center;gap:12px;margin:32px auto 0;color:#9ba794;font-size:11px}.hero-line i{width:80px;border-top:1px dashed #cbd3c4}.hero-line b{font-size:20px;font-weight:400}.search-card{max-width:560px;margin:12px auto 60px;padding:32px;background:var(--paper);border:1px solid var(--line);border-radius:20px;box-shadow:0 10px 40px #25352305}.card-heading{display:flex;align-items:center;justify-content:space-between;padding-bottom:25px;margin-bottom:24px;border-bottom:1px solid var(--line)}.card-heading .eyebrow{font-size:9px;margin-bottom:10px}.card-heading h2{font-size:22px;letter-spacing:-.8px;margin:0;font-weight:650}.pill{font-size:11px;background:var(--soft);color:var(--green);padding:7px 10px;border-radius:6px;white-space:nowrap}.pill.positive{background:#e2efdf}.station-row{display:grid;grid-template-columns:1fr 36px 1fr;gap:12px;align-items:end}.station-row label{min-width:0}.swap{width:34px;height:46px;border:1px solid var(--line);background:white;border-radius:8px;font-size:22px;color:var(--muted)}label,legend{display:block;font-size:12px;font-weight:600;color:#526052}input:not([type=radio]),select{width:100%;height:47px;padding:11px 13px;background:#fcfdfa;border:1px solid #dfe5d9;border-radius:8px;color:var(--ink);margin-top:9px;font-size:14px}input:focus,select:focus{border-color:#88a083}input[type=date],input[type=time]{min-width:0}.form-row{display:grid;grid-template-columns:1.25fr 1fr;gap:16px;margin:23px 0}fieldset{border:0;padding:0;margin:24px 0}legend{padding:0;margin-bottom:0}.time-row{display:grid;grid-template-columns:1fr auto 1fr auto;align-items:center;gap:10px;font-size:12px;color:var(--muted)}.time-row>span{padding-top:9px}.field-hint{font-size:11px;color:#929a8e;margin:9px 0 0}.seat-options{display:grid;grid-template-columns:repeat(3,1fr);gap:9px;margin-top:10px}.seat-options label{position:relative;cursor:pointer}.seat-options input{position:absolute;opacity:0;width:1px;height:1px}.seat-options span{display:block;text-align:center;padding:13px 4px;border:1px solid var(--line);border-radius:8px;font-size:12px;font-weight:450;color:#828a7d}.seat-options input:checked+span{background:var(--soft);border-color:#8fa184;color:var(--green);font-weight:650}.seat-options input:focus-visible+span{outline:3px solid #91b59d;outline-offset:2px}.primary{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--green);color:white;padding:14px 20px;border-radius:8px;font-size:13px;font-weight:550;transition:background .2s}.primary:hover{background:#2f533f}.full{width:100%;justify-content:flex-end;font-size:14px;padding:17px 19px;margin-top:3px}.form-note{text-align:center;font-size:11px;color:var(--muted);margin:15px 0 0}.how-it-works{display:grid;grid-template-columns:repeat(3,1fr);max-width:690px;margin:auto;text-align:center;gap:20px}.step{font-size:11px;background:#e9ede3;color:#708065;border-radius:50%;width:30px;height:30px;display:inline-grid;place-items:center}.how-it-works h3{font-size:14px;font-weight:600;margin:16px 0 10px}.how-it-works p{font-size:12px;line-height:1.8;color:var(--muted);margin:0}.fine-print{text-align:center;font-size:11px;line-height:1.85;color:#92988e;margin:38px auto 55px;max-width:760px}.error-box{padding:14px;background:#fff1e8;color:#94542e;font-size:13px;border-radius:8px;margin-bottom:22px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.watch-heading{max-width:780px;margin:48px auto 26px}.watch-heading h1{font-size:39px;letter-spacing:-1.8px;margin:12px 0 16px;font-weight:650}.route-arrow{color:#9fab94;font-weight:400;margin:0 8px}.watch-heading>p:last-child{font-size:13px;color:#75816e;line-height:1.9}.divider{margin:0 10px;color:#b6bfaf}#watch-app{max-width:780px;margin:auto}.monitor-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:29px}.monitor-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}.connection{font-size:11px;color:var(--muted)}.monitor-card h2{font-size:23px;font-weight:600;letter-spacing:-.8px;margin:0 0 10px}.monitor-card>p{font-size:13px;color:var(--muted);line-height:1.8}.sound-panel{margin-top:26px;background:#f5f7f0;border-radius:10px;padding:19px;display:flex;align-items:center;justify-content:space-between;gap:18px}.sound-panel strong{font-size:13px;font-weight:600}.sound-panel p{font-size:11px;line-height:1.7;color:var(--muted);margin:6px 0 0}.sound-panel button{flex-shrink:0;font-size:12px}.monitor-meta{display:flex;align-items:center;justify-content:space-between;margin-top:22px;font-size:11px;color:var(--muted);gap:12px}.text-button{padding:5px 0;font-size:11px;color:var(--green);background:none}.section-heading{display:flex;justify-content:space-between;align-items:center;margin:31px 0 16px}.section-heading h2{font-size:17px;font-weight:600;letter-spacing:-.5px;margin:0}.section-heading>span{font-size:11px;color:var(--muted)}.table-wrapper{border:1px solid var(--line);border-radius:12px;background:white;overflow-x:auto}table{width:100%;border-collapse:collapse;text-align:left;white-space:nowrap}th{font-size:11px;color:var(--muted);font-weight:500;background:#fafbf7;padding:16px 20px}td{padding:19px 20px;font-size:13px;border-top:1px solid var(--line)}td strong{display:block;font-size:12px;font-weight:600}.train-number{display:block;font-size:10px;color:var(--muted);margin-top:5px}.schedule{font-variant-numeric:tabular-nums;letter-spacing:.4px}.seat-state{font-size:11px;display:inline-block}.seat-state.available{color:#2b713e;background:#eaf4e6;border-radius:5px;padding:6px 8px}.seat-state.sold_out,.seat-state.unavailable{color:#929889}.seat-state.unknown{color:var(--amber)}.empty-state{text-align:center;color:var(--muted);padding:40px 12px;font-size:12px}.arrival-alert{background:#eaf3e4;border:1px solid #abc39b;border-radius:12px;padding:24px;margin-top:22px}.arrival-alert strong{font-size:17px}.arrival-alert p{font-size:13px;line-height:1.8}.arrival-alert button{margin-left:20px}.arrival-alert[hidden]{display:none}.history-list{list-style:none;padding:0;margin:0;border-top:1px solid var(--line)}.history-list li{padding:15px 2px;border-bottom:1px solid var(--line);font-size:12px;line-height:1.8;color:var(--muted);display:flex;gap:20px}.history-list time{white-space:nowrap;font-variant-numeric:tabular-nums}.watch-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-top:30px}.watch-bottom p{font-size:11px;line-height:1.9;color:var(--muted)}.secondary{background:transparent;border:1px solid #d6ddd0;border-radius:7px;padding:11px 15px;font-size:12px;color:var(--muted);white-space:nowrap}@media(max-width:600px){main{padding:0 20px}.hero{padding-top:37px}.hero h1{font-size:35px;letter-spacing:-1.7px}.hero p{font-size:13px}.search-card{padding:24px 20px;border-radius:16px;margin-bottom:40px}.card-heading h2{font-size:20px}.station-row{gap:8px;grid-template-columns:1fr 30px 1fr}.swap{width:30px}.time-row{gap:7px}.time-row input{padding:10px 7px;font-size:13px}.form-row{gap:12px}.how-it-works{gap:10px}.how-it-works h3{font-size:12px}.how-it-works p{font-size:10px}.fine-print{font-size:10px;line-height:1.9;margin-bottom:35px}.watch-heading{margin-top:28px}.watch-heading h1{font-size:32px}.watch-heading>p:last-child{font-size:11px}.divider{margin:0 5px}.monitor-card{padding:21px 18px}.monitor-card h2{font-size:20px}.monitor-card>p{font-size:12px}.sound-panel{flex-direction:column;align-items:stretch;padding:16px;gap:15px}.monitor-meta{align-items:flex-start;font-size:10px}.text-button{font-size:10px;white-space:nowrap;padding:0}.connection{font-size:10px}th,td{padding:14px 10px;font-size:11px}th:first-child,td:first-child{padding-left:14px}.schedule{letter-spacing:0}.seat-state{font-size:10px}.seat-state.available{padding:5px}.arrival-alert{padding:20px}.watch-bottom{align-items:flex-start}.watch-bottom p{margin:0;font-size:10px}.history-list li{gap:12px;font-size:11px}}

/* Compact registration form and optional time strip. */
.compact-card{margin:24px auto 20px;padding:28px;box-shadow:none}
.compact-card .card-heading{margin-bottom:23px;padding-bottom:20px}
.compact-card h1{margin:0;font-size:22px;font-weight:650;letter-spacing:-.7px}
.compact-card .form-row{margin:22px 0}
.compact-card fieldset{margin:22px 0}
.compact-note{margin:0 auto 32px;max-width:540px}
.time-inputs{display:grid;grid-template-columns:minmax(0,1fr) 16px minmax(0,1fr);gap:10px;align-items:start;margin-top:12px}
.time-input>label{font-size:11px;font-weight:450;color:var(--muted)}
.time-input>input{margin-top:7px;font-variant-numeric:tabular-nums}
.time-separator{padding-top:35px;text-align:center;color:var(--muted)}
.time-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;min-height:32px;padding:8px 0 2px;color:var(--green);background:transparent;font-size:11px;text-align:left}
.time-toggle[aria-expanded=true]{font-weight:650}
.time-toggle span{font-size:16px;line-height:1}
.time-toggle[aria-expanded=true] span{transform:rotate(180deg)}
.time-picker{border:1px solid var(--line);border-radius:10px;background:#fafbf7;margin-top:12px;padding:13px 10px 10px}
.time-picker-heading{display:flex;justify-content:space-between;gap:12px;padding:0 3px 9px;font-size:11px;color:var(--muted)}
.time-picker-heading>span:first-child{color:var(--green);font-weight:600}
.time-carousel{display:grid;grid-template-columns:28px minmax(0,1fr) 28px;gap:5px;align-items:center}
.time-scroll{height:42px;color:var(--green);background:transparent;font-size:24px;border-radius:6px}
.time-scroll:hover{background:var(--soft)}
.time-options{position:relative;display:flex;gap:7px;overflow-x:auto;scroll-snap-type:x proximity;scrollbar-width:thin;scrollbar-color:#c8d2c2 transparent;padding:3px 2px 7px;overscroll-behavior-x:contain}
.time-option{flex:0 0 66px;height:38px;scroll-snap-align:center;border:1px solid #dfe5d9;border-radius:7px;background:white;color:#53634d;font-size:12px;font-variant-numeric:tabular-nums}
.time-option[aria-pressed=true]{background:var(--green);border-color:var(--green);color:white}
.time-option:disabled{opacity:.4}
.time-picker[hidden],.time-toggle[hidden],.field-error[hidden]{display:none}
.field-error{font-size:11px;color:#94542e;margin:9px 0 0;line-height:1.6}
.time-input input[aria-invalid=true]{border-color:#bb8765}
@media(max-width:600px){.compact-card{margin-top:12px;padding:22px 18px}.compact-card h1{font-size:20px}.compact-card .card-heading{padding-bottom:18px;margin-bottom:20px}.time-inputs{gap:7px}.time-input>input{padding-inline:9px}.compact-card .field-hint{line-height:1.7}.compact-note{padding:0 8px;margin-bottom:24px}}

.train-options{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px;margin-top:10px}
.train-options label{position:relative;cursor:pointer;min-width:0}
.train-options input{position:absolute;opacity:0;width:1px;height:1px}
.train-options label>span{display:block;padding:12px 3px;border:1px solid var(--line);border-radius:8px;text-align:center;font-size:12px;font-weight:450;color:#828a7d}
.train-options input:checked+span{background:var(--soft);border-color:#8fa184;color:var(--green);font-weight:650}
.train-options input:focus-visible+span{outline:3px solid #91b59d;outline-offset:2px}
.legend-hint{font-size:10px;color:var(--muted);font-weight:400;margin-left:8px}
.train-option-footer{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:8px;font-size:10px;color:var(--muted)}
#select-all-trains[hidden]{display:none}
a.seat-state.available{border:1px solid #acc69f;white-space:nowrap}
a.seat-state.available:hover{background:#dcecd5;text-decoration:underline;text-underline-offset:3px}
@media(max-width:600px){.train-options{gap:5px}.train-options label>span{font-size:11px;padding:12px 2px}}

/* Home hero and usage steps (no site header/footer). */
.hero{padding:56px 0 8px}
.hero h1{margin:0}
.hero h1 span{display:block;font-size:16px;letter-spacing:-.3px;font-weight:500;margin-top:12px}
.hero>p{margin:18px 0 0}
.hero-figure{margin:28px auto 0;max-width:420px}
.hero-figure img{display:block;width:100%;height:auto;border-radius:12px}
.how-to{max-width:560px;margin:32px auto 8px;text-align:center}
.how-to h2{font-size:17px;font-weight:600;letter-spacing:-.5px;margin:0 0 18px}
.how-it-works{grid-template-columns:repeat(2,1fr);list-style:none;padding:0;margin:0 auto;text-align:left}
.how-it-works li{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:18px}
.how-it-works p{margin:10px 0 0;font-size:13px}
@media(max-width:600px){.hero{padding-top:36px}.hero h1 span{font-size:14px}.how-it-works{grid-template-columns:1fr}.how-to{margin-top:30px}}
.meta-lines{display:flex;flex-direction:column;gap:5px;font-variant-numeric:tabular-nums}
.meta-lines span[hidden]{display:none}
.connection.live::before{content:'';display:inline-block;width:6px;height:6px;border-radius:50%;background:#4f9a5f;margin-right:6px;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.25}}
@media(prefers-reduced-motion:reduce){.connection.live::before{animation:none}}
.arrival-alert{display:grid;grid-template-columns:132px minmax(0,1fr);gap:22px;align-items:center}
.alert-figure{width:100%;height:auto;border-radius:10px}
.alert-body strong{display:block}
.not-found{max-width:520px;margin:60px auto 40px;text-align:center}
.not-found img{width:min(100%,300px);height:auto;border-radius:12px}
.not-found h1{font-size:26px;letter-spacing:-1px;font-weight:650;margin:26px 0 10px}
.not-found p{font-size:14px;color:var(--muted);line-height:1.8;margin:0 0 26px}
@media(max-width:600px){.arrival-alert{grid-template-columns:1fr;justify-items:center;text-align:center}.alert-figure{max-width:150px}.alert-body{width:100%}.not-found{margin-top:36px}.not-found h1{font-size:22px}}