:root{color-scheme:light;--ink:#163e38;--muted:#526861;--paper:#f5f3ec;--green:#227b58;--blue:#2378ad;--border:#d5ddd3;--lime:#e4edbd}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Nirmala UI","Latha",sans-serif}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}a{color:inherit;text-underline-offset:4px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a35120;outline-offset:4px}.wrap{width:min(1160px,calc(100% - 64px));margin:auto}.topbar{display:flex;justify-content:space-between;align-items:center;padding:26px 0;border-bottom:1px solid var(--border)}.brand{text-decoration:none;display:flex;gap:12px;align-items:center;font-size:15px;font-weight:750;letter-spacing:2px;line-height:1.25}.brand-small{display:block;font-size:9px;letter-spacing:1.4px;margin-top:5px}.brand-mark{width:45px;height:45px;background:var(--ink);color:var(--paper);border-radius:12px;font-size:34px;letter-spacing:normal;text-align:center;line-height:38px}.brand-mark span{font-size:20px;vertical-align:top}.language{border:1px solid var(--border);border-radius:30px;padding:4px;display:flex;background:#fff}.language button{border:0;background:none;color:var(--muted);padding:8px 16px;min-height:44px;border-radius:24px;font-size:13px}.language button[aria-pressed=true]{background:var(--ink);color:white}.hero{display:grid;grid-template-columns:1.65fr 1fr;align-items:center;gap:50px;padding:57px 0 43px}.eyebrow{font-size:10px;letter-spacing:2.2px;font-weight:750;margin:0 0 13px;color:var(--muted)}h1{font-size:clamp(38px,4.5vw,62px);letter-spacing:normal;line-height:1.09;font-weight:620;margin:0 0 20px}h2{font-size:23px;font-weight:650;letter-spacing:normal;line-height:1.35;margin:0}h3{font-size:15px;margin:0 0 9px}.intro{max-width:560px;color:var(--muted);margin:0 0 24px;font-size:16px}.network{display:flex;gap:19px;flex-wrap:wrap;font-size:11px;color:var(--muted);font-weight:600}.network>span{display:flex;align-items:center;gap:6px}.dot{display:inline-block;width:8px;height:8px;border-radius:50%}.blue{background:var(--blue)}.green{background:var(--green)}.route-art svg{width:100%;overflow:visible}.route-art path{fill:none;stroke-width:6;stroke-linecap:round}.art-blue{stroke:#83aec4}.art-green{stroke:#608d69}.art-stops circle{fill:var(--paper);stroke:var(--ink);stroke-width:2.5}.route-art text{fill:var(--muted);font-size:13px}.workspace{display:grid;grid-template-columns: minmax(0,1fr) minmax(0,1.12fr);gap:24px;align-items:start}.panel{border:1px solid var(--border);background:#fffefa;border-radius:20px}.planner{padding:30px}.section-head{display:flex;gap:15px;align-items:center;margin-bottom:27px}.section-head .eyebrow{margin:0 0 6px}.step{font-size:11px;font-weight:700;border:1px solid var(--border);border-radius:50%;width:34px;height:34px;display:grid;place-items:center;flex-shrink:0}label{display:block;font-size:12px;font-weight:700;margin-bottom:8px}input:not([type=checkbox]),select{width:100%;min-width:0;min-height:51px;border:1px solid #b9c8bf;border-radius:10px;background:#fff;color:var(--ink);padding:11px 13px;font-size:14px}input[aria-invalid=true]{border-color:#b14b2e}select{padding-right:25px}.station-fields{position:relative}.field+.field{margin-top:16px}.field:last-child{margin-top:18px}.swap{position:absolute;right:12px;top:69px;height:36px;width:42px;z-index:1;background:var(--paper);border:1px solid #b9c8bf;border-radius:9px;font-size:21px;line-height:1}.help{color:var(--muted);font-size:11px;line-height:1.6;margin:9px 0 0}.divider{height:1px;background:var(--border);margin:23px 0}.commute-input{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center;margin-top:25px}.commute-input input[type=number]{width:100px}.checkbox{display:flex;align-items:center;gap:9px;line-height:1.5;margin:0}input[type=checkbox]{width:19px;height:19px;accent-color:var(--ink);flex-shrink:0}.primary{margin-top:23px;width:100%;display:flex;justify-content:space-between;align-items:center;min-height:53px;padding:13px 18px;border:0;border-radius:11px;background:var(--ink);color:#fff;font-size:14px;font-weight:650}.primary:hover{background:#20564d}.privacy{text-align:center;font-size:10px;color:var(--muted);margin:18px 0 0}.error{color:#923b29;background:#fff0e9;padding:12px;border-radius:9px;font-size:13px}.results{display:grid;gap:18px}.route-card{padding:27px 29px}.result-kicker{display:flex;justify-content:space-between;gap:15px;margin-bottom:18px;align-items:center}.result-kicker .eyebrow{margin:0}.pill{font-size:10px;background:#eef2e7;padding:4px 10px;border-radius:20px}.route-title{font-size:21px;letter-spacing:normal;line-height:1.4;margin-bottom:18px}.route-meta{color:var(--muted);font-size:12px;margin:0 0 17px}.legs{list-style:none;margin:0;padding:0}.leg{border-left:3px solid var(--blue);padding:0 0 20px 20px;margin-left:5px;position:relative}.leg:last-child{padding-bottom:0}.leg.green-leg{border-left-color:var(--green)}.leg:before{content:"";position:absolute;width:9px;height:9px;border:2px solid var(--ink);border-radius:50%;left:-8px;top:6px;background:white}.leg-title{font-size:13px;font-weight:650}.leg p{font-size:12px;color:var(--muted);margin:4px 0}.change{font-size:11px;padding:7px 10px;background:var(--paper);border-radius:6px;margin-bottom:15px}.route-card details{border-top:1px solid var(--border);margin-top:23px;padding-top:13px}summary{cursor:pointer;font-size:12px;min-height:30px}details ol{font-size:12px;color:var(--muted);padding-left:22px}details li{padding:3px 0}.cost-card{border-radius:20px;background:var(--ink);color:#faffee;padding:27px 29px}.cost-card .eyebrow{color:#c8dbcc}.fare-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding-bottom:21px;border-bottom:1px solid #55736b}.fare-label{font-size:11px;color:#d0dfd4;display:block}.fare{font-size:32px;line-height:1.5;font-weight:550;letter-spacing:normal}.monthly{display:flex;align-items:end;justify-content:space-between;gap:16px;padding-top:20px}.monthly .fare{font-size:43px;color:var(--lime);line-height:1.25}.monthly p{font-size:11px;color:#d0dfd4;margin:6px 0 0}.estimate{border:1px solid #789080;border-radius:6px;padding:5px 8px;font-size:9px;white-space:nowrap}.cost-foot{font-size:10px;color:#c8dbcc;line-height:1.6;margin:18px 0 0}.sources{margin:32px 0 26px;padding:28px 30px}.source-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px}.source-grid p{font-size:12px;color:var(--muted);line-height:1.8;margin:0 0 13px}.source-links{padding:0;list-style:none;font-size:12px}.source-links li{margin:8px 0}.source-links a{display:inline-block;min-height:28px}footer{padding:0 0 28px;display:flex;justify-content:space-between;gap:20px;font-size:10px;color:var(--muted)}.skip{position:absolute;left:16px;top:-100px;background:white;padding:10px;z-index:5}.skip:focus{top:10px}[hidden]{display:none!important}html[lang=ta] h1{font-size:clamp(29px,3.5vw,45px);line-height:1.5;letter-spacing:normal}html[lang=ta] h2{font-size:19px;line-height:1.65;letter-spacing:0}html[lang=ta] .eyebrow{letter-spacing:.3px}html[lang=ta] .route-title{font-size:18px;letter-spacing:0}html[lang=ta] .brand-small{letter-spacing:0}.empty{padding:30px;color:var(--muted)}@media(max-width:850px){.wrap{width:calc(100% - 40px)}.hero{grid-template-columns:1fr 220px;gap:25px;padding-top:35px}.workspace{gap:16px}.planner,.route-card,.cost-card{padding:22px}.source-grid{gap:25px}.commute-input{gap:12px;grid-template-columns:1fr}.route-title{font-size:19px}}@media(max-width:650px){.wrap{width:calc(100% - 32px)}.topbar{padding:18px 0}.brand{font-size:12px;letter-spacing:1.5px;gap:9px}.brand-small{font-size:7px}.brand-mark{width:38px;height:38px;font-size:29px;line-height:32px}.language button{padding:5px 12px;font-size:12px}.hero{display:block;padding:35px 0 29px}.hero .eyebrow{font-size:9px}.route-art{display:none}h1{font-size:44px;letter-spacing:normal}.intro{font-size:14px}.network{font-size:10px;gap:15px}.workspace{grid-template-columns:1fr}.planner,.route-card,.cost-card{padding:24px}.commute-input{grid-template-columns:1fr 1fr}.sources{padding:24px;margin-top:22px}.source-grid{grid-template-columns:1fr;gap:18px}footer{flex-direction:column;gap:5px}.source-links a{min-height:38px}.monthly .fare{font-size:40px}}@media(max-width:360px){.brand-small{display:none}.commute-input{grid-template-columns:1fr}.monthly{align-items:start;flex-direction:column}.network{gap:9px}.planner,.route-card,.cost-card,.sources{padding:20px}.language button{padding:5px 10px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}@media print{.hero,.planner,.topbar,.route-art,footer{display:none}.workspace{display:block}.cost-card{background:white;color:#163e38;border:1px solid}.cost-card *{color:#163e38!important}.results{break-inside:avoid}.wrap{width:100%}}
.site-shell{display:block}.ad-rail{display:none}.mobile-ad{margin-top:20px;padding-bottom:8px;border-bottom:1px solid var(--border)}.ad-slot{border:1px dashed #b7c2b5;border-radius:10px;background:#eeeee6;min-height:72px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:12px;color:#606e63}.ad-slot>span{font-size:9px;font-weight:700;letter-spacing:1.1px;text-transform:uppercase}.ad-slot p{font-size:10px;margin:4px 0 0}.game-promos{margin-top:16px;padding:12px 0 8px;border-top:1px solid var(--border)}.game-promos p{font-size:9px;text-transform:uppercase;letter-spacing:.7px;color:var(--muted);margin:0 0 7px}.game-promos a{font-size:11px;text-decoration:none;display:block;padding:9px 10px;border:1px solid var(--border);background:#fffefa;border-radius:7px;margin-bottom:8px;min-height:40px}.game-promos a:hover{text-decoration:underline}.game-promos a span{float:right}.mobile-ad .game-promos{display:flex;align-items:center;gap:20px;margin-top:12px;padding:10px 0 0}.mobile-ad .game-promos>div{display:flex;gap:10px}.mobile-ad .game-promos a{padding:7px 12px;margin:0;display:flex;align-items:center}.mobile-ad .game-promos p{margin:0}@media(min-width:1400px){.site-shell{display:grid;grid-template-columns:120px minmax(0,1160px)120px;gap:24px;max-width:1450px;width:calc(100% - 48px);margin:auto}.site-shell main.wrap{width:100%;min-width:0}.ad-rail{display:block;padding-top:58px}.ad-rail .ad-slot{min-height:250px}.mobile-ad{display:none}}@media(max-width:440px){.mobile-ad .game-promos{gap:8px;align-items:start;flex-direction:column}.mobile-ad .game-promos>div{width:100%}.mobile-ad .game-promos a{flex:1}}@media print{.ad-rail,.mobile-ad{display:none!important}}
.section-nav{display:flex;gap:1.3rem;flex-wrap:wrap;padding-bottom:1rem}.quick-routes{display:flex;gap:.5rem;flex-wrap:wrap;margin:1rem 0}.quick-routes button{padding:.6rem;border:1px solid #aab9aa;border-radius:.5rem;background:#edf1e4;cursor:pointer;color:#123c37}.suburban-leg{border-color:#b36737}.mrts-leg{border-color:#8569a2}.walk-leg{border-color:#777;border-style:dashed}.future-control{margin:1rem 0;font-size:.88rem}.future-control p{max-width:85ch}#faq details{padding:1rem 0;border-bottom:1px solid #d4ddce}#faq summary{font-weight:700;cursor:pointer}.sources{overflow-wrap:anywhere}

/* Legible planner text; dense geographic geometry is not rescaled. */
html{font-size:100%}body{font-family:'Nirmala UI','Tamil Sangam MN','Latha','Segoe UI',Arial,sans-serif;font-size:1.1875rem;line-height:1.75;--ink:#153a32;--muted:#40554a;--paper:#faf8f2}
h1{font-size:clamp(2.25rem,4vw,3.5rem);line-height:1.3;letter-spacing:normal}h2{font-size:1.6rem;line-height:1.5;letter-spacing:normal}h3{font-size:1.25rem;line-height:1.6}
.topbar{gap:1rem;flex-wrap:wrap}.brand{font-size:1.125rem;letter-spacing:normal;line-height:1.5}.brand-small{font-size:1rem;letter-spacing:normal}.language button{font-size:1.125rem;line-height:1.6;min-height:48px;padding:.5rem .85rem}.brand-mark{flex-shrink:0}
.eyebrow,.hero .eyebrow,.step,.network,.help,.privacy,.pill,.estimate,.fare-label,.monthly p,.cost-foot,.change,footer{font-size:1rem;letter-spacing:normal;line-height:1.75}.step{width:2.5rem;height:2.5rem}.intro{font-size:1.25rem;line-height:1.75;max-width:65ch;color:var(--ink)}
label,.primary,input:not([type=checkbox]),select,.quick-routes button,.section-nav a{font-size:1.125rem;line-height:1.75}.section-nav a{min-height:44px;padding-block:.4rem}.primary,input:not([type=checkbox]),select,.quick-routes button{min-height:50px}.primary{gap:1rem}.quick-routes button{white-space:normal;text-align:left}.checkbox{min-height:48px;line-height:1.8}input[type=checkbox]{width:1.6rem;height:1.6rem}
.swap{position:static;display:block;margin:.65rem 0 .65rem auto;min-height:48px;width:48px;font-size:1.5rem}.station-fields .field:last-child{margin-top:0}.commute-input{gap:1.25rem}.commute-input input[type=number]{width:7rem;max-width:100%}
.route-title{font-size:1.5rem;line-height:1.6;letter-spacing:normal}.route-meta,.leg-title,.leg p,details ol,.error,.source-grid p,.source-links,.future-control{font-size:1.125rem;line-height:1.8}.leg-title{font-weight:700}.route-meta,.leg p,.source-grid p{color:var(--ink)}.leg{padding-bottom:1.5rem}
summary{font-size:1.125rem;line-height:1.8;min-height:48px;padding-block:.4rem}.source-links a{min-height:44px;padding-block:.4rem}.sources h2{margin-bottom:1rem}.source-grid p,.future-control p{max-width:68ch}.result-kicker,.monthly{flex-wrap:wrap}.estimate{white-space:normal}
.fare{font-size:2.2rem;line-height:1.5}.monthly .fare{font-size:2.7rem}.fare-label,.monthly p,.cost-foot,.cost-card .eyebrow{color:#f0f4e8}.cost-foot{font-size:1rem}.cost-card,.route-card,.planner,.sources{overflow-wrap:anywhere;min-width:0}.source-grid>*{min-width:0}
.ad-slot>span,.ad-slot p,.game-promos p,.game-promos a{font-size:1rem;text-transform:none;letter-spacing:normal;line-height:1.7}.game-promos a{min-height:48px;overflow-wrap:anywhere}.mobile-ad .game-promos{flex-wrap:wrap}.mobile-ad .game-promos>div{flex-wrap:wrap}.mobile-ad .game-promos a{white-space:normal}
html[lang=ta] body{line-height:1.85}html[lang=ta] h1{font-size:clamp(2rem,3.5vw,3rem);line-height:1.6;letter-spacing:normal}html[lang=ta] h2{font-size:1.6rem;line-height:1.7}html[lang=ta] .route-title{font-size:1.4rem;line-height:1.8}html[lang=ta] .eyebrow{letter-spacing:normal}html[lang=ta] .leg p{line-height:1.9}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #8d481c;outline-offset:4px}
@media(max-width:1050px){.workspace{grid-template-columns:1fr}.source-grid{grid-template-columns:1fr}.hero{grid-template-columns:1fr}.route-art{max-width:420px}}
@media(max-width:650px){.topbar{align-items:flex-start}.brand{font-size:1.125rem}.brand-small{font-size:1rem;display:block}.language{margin-left:auto;max-width:100%}.language button{font-size:1.125rem}.intro{font-size:1.25rem}.network{font-size:1rem;gap:.8rem}.hero h1{font-size:2.25rem}.planner,.route-card,.cost-card,.sources{padding:1.25rem}.commute-input,.fare-pair{grid-template-columns:1fr}.route-title{font-size:1.5rem}.monthly .fare{font-size:2.7rem}.game-promos a{min-width:0}.site-shell main{min-width:0}}
@media print{body{font-size:12pt}.route-meta,.leg p,.source-grid p{font-size:12pt}.cost-card *{color:#153a32!important}}

/* Large text keeps language, promotion and card content within the page. */
.language{flex-wrap:wrap;min-width:0}.language button{max-width:100%;overflow-wrap:anywhere}.brand,.brand>span,.hero>div,.game-promos,.game-promos p,.game-promos>div,.game-promos a,.guide-main,.guide-search,.guide-card,.guide-card li,.guide-card h2{min-width:0;max-width:100%;overflow-wrap:anywhere}.game-promos a span{float:none}.guide-card ol{padding-left:1.1em}

/* The off-screen Tamil skip link must also respect enlarged-text width. */
.skip{max-width:calc(100% - 2rem);overflow-wrap:anywhere;white-space:normal;top:-100vh}.skip:focus{top:1rem}

/* Long Tamil words wrap at grapheme boundaries when users enlarge text. */
body{overflow-wrap:anywhere}.checkbox>*{min-width:0;max-width:100%}