/* ==========================================================================
   Isochrone — transit-map mobility planning template · archesign.studio
   1. Tokens  2. Base  3. Header  4. Components  5. Pages  6. Footer  7. Responsive
   ========================================================================== */

/* 1. Tokens ---------------------------------------------------------------- */
:root {
  --white: #ffffff;
  --mist: #f2f3f5;
  --ink: #14161a;
  --grey: #6b717c;
  --rule: #dfe2e7;
  --red: #e1372d;
  --blue: #1f6fd1;
  --yellow: #f2a900;
  --green: #2e9e5b;
  --purple: #8e44ad;

  --font: "Onest", "Helvetica Neue", Arial, sans-serif;

  --gutter: clamp(16px, 3vw, 44px);
  --max: 1320px;
  --space: clamp(80px, 10vw, 140px);
  --track: 10px;
}

/* 2. Base ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--white); color: var(--ink); font: 400 17px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
p { margin: 0 0 1em; }
h1, h2, h3 { margin: 0; font-weight: 800; line-height: 1.02; letter-spacing: -.035em; }
h4 { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; margin: 0 0 10px; color: var(--grey); }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
::selection { background: var(--yellow); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; }
.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--space) 0; }
.small { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--grey); margin: 0 0 12px; }
.lineno { display: inline-grid; place-items: center; min-width: 40px; height: 40px; padding: 0 8px; border-radius: 10px; background: var(--c); color: #fff; font-weight: 800; font-size: 20px; }
.lineno--sm { min-width: 28px; height: 28px; border-radius: 7px; font-size: 14px; }

/* 3. Header ---------------------------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--white); border-bottom: 1px solid var(--rule); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 80px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 22px; letter-spacing: -.03em; }
.logo .sub { font-weight: 500; color: var(--grey); }
.node { width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 5px solid var(--ink); box-shadow: 0 0 0 3px var(--red); }
.site-nav { position: relative; display: flex; }
.site-nav::before { content: ""; position: absolute; left: 10%; right: 10%; top: 15px; height: 6px; border-radius: 3px; background: linear-gradient(90deg, var(--red) 0 25%, var(--blue) 25% 50%, var(--green) 50% 75%, var(--purple) 75%); }
.site-nav a { position: relative; flex: 1 1 0; min-width: 100px; display: flex; flex-direction: column; align-items: center; gap: 6px; font-size: 13px; font-weight: 500; color: var(--grey); }
.site-nav a i { width: 22px; height: 22px; margin-top: 7px; border-radius: 50%; background: #fff; border: 4px solid var(--ink); position: relative; transition: transform .15s; }
.site-nav a:hover i { transform: scale(1.2); }
.site-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--ink); font-weight: 700; }
.site-nav a[aria-current="page"] i { width: 30px; height: 30px; margin-top: 3px; border-width: 6px; box-shadow: 0 0 0 4px rgba(225, 55, 45, .25); }
.menu-btn { display: none; }

/* 4. Components ------------------------------------------------------------ */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 22px; border-radius: 999px; border: 0; background: var(--ink); color: #fff; font: 700 16px var(--font); cursor: pointer; transition: background .2s; }
.btn:hover { background: var(--red); }
.btn--white { background: #fff; color: var(--ink); }
.btn--white:hover { background: var(--yellow); color: var(--ink); }
.js .reveal { opacity: 0; transform: translateX(-12px); transition: opacity .5s ease, transform .5s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }

/* journey line */
.journey { position: relative; padding-left: 64px; }
.journey::before { content: ""; position: absolute; left: 21px; top: 10px; bottom: 0; width: var(--track); border-radius: 5px; background: var(--line, var(--red)); }
.stop { position: relative; padding-bottom: clamp(60px, 8vw, 110px); }
.stop:last-child { padding-bottom: 0; }
.stop::before { content: ""; position: absolute; left: -54px; top: 6px; width: 32px; height: 32px; border-radius: 50%; background: #fff; border: 7px solid var(--ink); }
.stop.interchange::before { width: 40px; height: 40px; left: -58px; top: 2px; border-width: 8px; box-shadow: 0 0 0 6px rgba(20, 22, 26, .08); }
.stop > .small { padding-top: 10px; }

/* 5. Pages ----------------------------------------------------------------- */
/* hero */
.hero { padding: clamp(36px, 5vw, 70px) 0 0; }
.hero-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(26px, 4vw, 60px); align-items: center; }
.hero h1 { font-size: clamp(50px, 6.6vw, 104px); }
.hero h1 em { font-style: normal; background: var(--yellow); padding: 0 .12em; border-radius: .12em; }
.hero .lead { font-size: 20px; color: var(--grey); max-width: 40ch; margin: 24px 0 28px; }
.netmap { position: relative; border-radius: 24px; overflow: hidden; border: 1px solid var(--rule); }
.netmap img { width: 100%; aspect-ratio: 14 / 10; object-fit: cover; }
.netmap .legend { position: absolute; left: 14px; bottom: 14px; display: flex; flex-wrap: wrap; gap: 6px; background: rgba(255, 255, 255, .94); padding: 10px; border-radius: 14px; font-size: 13px; font-weight: 500; }
.netmap .legend span { display: inline-flex; align-items: center; gap: 6px; padding-right: 6px; }

/* departures board */
.board { background: var(--ink); color: #fff; border-radius: 24px; padding: clamp(18px, 3vw, 34px); font-variant-numeric: tabular-nums; }
.board-head { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid #2b2f36; font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #9aa1ad; }
.dep { display: grid; grid-template-columns: 70px 50px 1fr auto; gap: 14px; align-items: center; padding: 14px 0; border-bottom: 1px solid #2b2f36; }
.dep:last-child { border-bottom: 0; }
.dep time { font-weight: 800; font-size: 22px; color: var(--yellow); }
.dep b { font-weight: 700; font-size: 18px; }
.dep b small { display: block; font-weight: 400; font-size: 14px; color: #9aa1ad; }
.dep .st { font-size: 13px; font-weight: 700; padding: 4px 10px; border-radius: 99px; background: #2b2f36; white-space: nowrap; }
.dep .st.on { background: var(--green); }

/* routes */
.sec-head { display: flex; justify-content: space-between; align-items: end; gap: 20px; margin-bottom: 28px; }
.sec-head h2 { font-size: clamp(38px, 4.6vw, 70px); }
.routes { display: grid; gap: 16px; }
.route { display: grid; grid-template-columns: 300px minmax(0, 1fr); border-radius: 22px; overflow: hidden; border: 1px solid var(--rule); background: var(--white); transition: box-shadow .2s, transform .2s; }
.route:hover { box-shadow: 0 16px 40px -24px rgba(20, 22, 26, .5); }
.route img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 3 / 2; }
.route .body { padding: 22px 26px; display: flex; flex-direction: column; gap: 12px; border-left: var(--track) solid var(--c); }
.route .body > .lineno { align-self: flex-start; }
.route h3 { font-size: 28px; }
.route p { margin: 0; color: var(--grey); }
.stops { display: flex; align-items: center; gap: 0; margin-top: auto; padding-top: 8px; position: relative; flex-wrap: wrap; row-gap: 10px; }
.stops span { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; padding-right: 26px; position: relative; }
.stops span::before { content: ""; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--c); }
.stops span:not(:last-child)::after { content: ""; position: absolute; right: 4px; top: 50%; width: 16px; height: 4px; margin-top: -2px; background: var(--c); border-radius: 2px; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.filters button { display: inline-flex; align-items: center; gap: 8px; font: 600 15px var(--font); color: var(--ink); background: var(--mist); border: 2px solid transparent; border-radius: 999px; padding: 8px 16px 8px 8px; cursor: pointer; }
.filters button[aria-pressed="true"] { background: #fff; border-color: var(--ink); }

/* page head */
.page-head { padding: clamp(46px, 7vw, 100px) 0 clamp(30px, 4vw, 50px); }
.page-head h1 { font-size: clamp(52px, 8vw, 124px); }
.page-head p { max-width: 54ch; font-size: 19px; color: var(--grey); margin: 20px 0 0; }

/* project */
.diagram { display: grid; grid-template-columns: repeat(5, 1fr); position: relative; padding-top: 28px; }
.diagram::before { content: ""; position: absolute; left: 10%; right: 10%; top: 40px; height: var(--track); background: var(--c, var(--blue)); border-radius: 5px; }
.diagram div { position: relative; text-align: center; padding: 0 8px; }
.diagram div::before { content: ""; display: block; width: 34px; height: 34px; margin: 0 auto 14px; border-radius: 50%; background: #fff; border: 7px solid var(--ink); position: relative; }
.diagram div.now::before { width: 44px; height: 44px; margin-top: -5px; margin-bottom: 9px; box-shadow: 0 0 0 6px rgba(31, 111, 209, .2); }
.diagram b { display: block; font-size: 18px; }
.diagram span { font-size: 14px; color: var(--grey); }
.timetable { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.timetable th { text-align: left; font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--grey); padding: 10px 14px 10px 0; border-bottom: 2px solid var(--ink); }
.timetable td { padding: 14px 14px 14px 0; border-bottom: 1px solid var(--rule); }
.timetable td:first-child { font-weight: 800; color: var(--blue); }
.tt-wrap { overflow-x: auto; }
.pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pair figure { margin: 0; }
.pair img { width: 100%; border-radius: 20px; border: 1px solid var(--rule); aspect-ratio: 3 / 2; object-fit: cover; }
.pair figcaption { display: flex; align-items: center; gap: 10px; margin-top: 10px; font-weight: 600; }
.kpis { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.kpis div { background: var(--mist); border-radius: 18px; padding: 20px; }
.kpis b { display: block; font-size: 40px; font-weight: 800; letter-spacing: -.04em; line-height: 1; }
.kpis span { font-size: 14px; color: var(--grey); }

/* crew */
.crew .stop h3 { font-size: 28px; }
.crew .person { display: grid; grid-template-columns: 110px 1fr; gap: 20px; align-items: center; }
.crew img { border-radius: 50%; aspect-ratio: 1; object-fit: cover; border: 4px solid var(--mist); }
.crew p { margin: 4px 0 0; color: var(--grey); }

/* lines (services) */
.lines { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.line-card { border-radius: 22px; background: var(--mist); padding: 24px; display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: start; border-top: var(--track) solid var(--c); }
.line-card h3 { font-size: 26px; margin-bottom: 6px; }
.line-card p { margin: 0; color: var(--grey); }
.faq { max-width: 880px; }
.faq details { border-bottom: 1px solid var(--rule); padding: 18px 0; }
.faq summary { display: flex; align-items: center; gap: 14px; position: relative; padding-right: 40px; cursor: pointer; list-style: none; font-weight: 700; font-size: 19px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: ""; flex: none; width: 18px; height: 18px; border-radius: 50%; border: 4px solid var(--ink); background: #fff; }
.faq details[open] summary::before { background: var(--red); border-color: var(--red); }
.faq summary::after { content: "+"; position: absolute; right: 0; top: -2px; font-size: 26px; font-weight: 400; color: var(--grey); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 10px 0 0 32px; color: var(--grey); }

/* journey planner */
.planner { display: grid; grid-template-columns: 1.4fr 1fr; gap: 24px; align-items: start; }
.form { background: var(--ink); color: #fff; border-radius: 26px; padding: clamp(20px, 3vw, 36px); display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form > *, .field { min-width: 0; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field--full, .actions, .form-note, .ft { grid-column: 1 / -1; }
.field label { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #9aa1ad; }
.field input, .field select, .field textarea { font: 500 17px var(--font); color: var(--ink); background: #fff; border: 2px solid transparent; border-radius: 14px; padding: 13px 14px; min-width: 0; max-width: 100%; }
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--yellow); }
.ft { display: grid; grid-template-columns: 34px 1fr; gap: 10px 14px; position: relative; }
.ft::before { content: ""; position: absolute; left: 13px; top: 46px; bottom: 46px; width: 8px; border-radius: 4px; background: var(--red); }
.ft .pin { width: 34px; height: 34px; border-radius: 50%; background: #fff; border: 7px solid var(--red); align-self: end; margin-bottom: 8px; position: relative; }
.ft .pin--to { border-color: var(--ink); background: var(--yellow); }
.form-note { margin: 0; padding: 12px 14px; border-radius: 14px; background: var(--green); font-weight: 600; }
.form .btn { background: var(--red); }
.form .btn:hover { background: var(--yellow); color: var(--ink); }
.office { border-radius: 26px; background: var(--mist); padding: 26px; }
.office h3 { font-size: 26px; margin-bottom: 10px; }
.office ul { list-style: none; padding: 0; margin: 16px 0 0; }
.office li { display: flex; gap: 12px; align-items: center; padding: 10px 0; border-top: 1px solid var(--rule); }

/* 6. Footer ---------------------------------------------------------------- */
.site-footer { margin-top: var(--space); background: var(--ink); color: #c7ccd4; padding: clamp(56px, 7vw, 100px) 0 24px; }
.terminus { display: grid; grid-template-columns: auto 1fr auto; gap: 24px; align-items: center; padding-bottom: 40px; border-bottom: 1px solid #2b2f36; }
.terminus .lineno { min-width: 64px; height: 64px; font-size: 32px; border-radius: 16px; }
.terminus h2 { color: #fff; font-size: clamp(32px, 4vw, 60px); }
.terminus .small { color: #9aa1ad; margin: 0 0 6px; }
.f-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: var(--gutter); padding: 36px 0 24px; font-size: 15px; }
.f-logo { font-weight: 800; font-size: 22px; color: #fff; margin: 0 0 8px; }
.site-footer h4 { color: #9aa1ad; }
.f-grid a:hover { color: #fff; text-decoration: underline; }
.f-base { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin: 0; padding-top: 16px; border-top: 1px solid #2b2f36; font-size: 13px; color: #9aa1ad; }

/* 7. Responsive ------------------------------------------------------------ */
@media (max-width: 1100px) {
  .site-nav a { min-width: 84px; }
  .kpis { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 960px) {
  .header-row { height: 66px; }
  .menu-btn { display: inline-block; position: relative; z-index: 60; background: var(--ink); color: #fff; border: 0; border-radius: 999px; padding: 10px 18px; font: 700 15px var(--font); cursor: pointer; }
  .site-nav { position: fixed; inset: 0; z-index: 55; flex-direction: column; justify-content: center; padding: 0 var(--gutter); background: var(--white); opacity: 0; visibility: hidden; transition: opacity .2s, visibility .2s; }
  .site-nav::before { display: none; }
  .site-nav a { flex: none; flex-direction: row; gap: 18px; padding: 12px 0; font-size: 30px; font-weight: 800; letter-spacing: -.03em; color: var(--ink); min-width: 0; }
  .site-nav a i { margin: 0; width: 30px; height: 30px; border-width: 6px; flex: none; }
  .site-nav a:not(:last-child)::after { content: ""; position: absolute; left: 11px; top: 50%; height: 100%; width: 8px; background: var(--red); z-index: -1; }
  .site-nav a:nth-child(2)::after { background: var(--blue); }
  .site-nav a:nth-child(3)::after { background: var(--green); }
  .site-nav a:nth-child(4)::after { background: var(--purple); }
  .site-nav a[aria-current="page"] i { width: 38px; height: 38px; margin-left: -4px; }
  .menu-open .site-nav { opacity: 1; visibility: visible; }
  .menu-open { overflow: hidden; }
  .hero-grid, .planner, .form { grid-template-columns: 1fr; }
  .route { grid-template-columns: 1fr; }
  .route .body { border-left: 0; border-top: var(--track) solid var(--c); }
  .lines, .pair { grid-template-columns: 1fr; }
  .diagram { grid-template-columns: 1fr; gap: 18px; padding-top: 0; }
  .diagram::before { left: 16px; right: auto; top: 10px; bottom: 10px; width: var(--track); height: auto; }
  .diagram div { display: grid; grid-template-columns: 44px 1fr; text-align: left; align-items: center; column-gap: 12px; padding: 0; }
  .diagram div::before { margin: 0; grid-row: span 2; }
  .diagram div.now::before { margin: 0 0 0 -5px; }
  .terminus { grid-template-columns: auto 1fr; }
  .terminus .btn { grid-column: 1 / -1; justify-self: start; }
  .f-grid { grid-template-columns: 1fr 1fr; }
  .f-grid > :first-child { grid-column: 1 / -1; }
  .sec-head { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 560px) {
  .journey { padding-left: 52px; }
  .journey::before { left: 15px; }
  .stop::before { left: -48px; }
  .stop.interchange::before { left: -52px; }
  .kpis { grid-template-columns: 1fr 1fr; }
  .dep { grid-template-columns: 60px 1fr; }
  .dep .lineno, .dep .st { display: none; }
  .crew .person { grid-template-columns: 80px 1fr; }
  .netmap .legend { position: static; border-radius: 0; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}