/* DMV Learning Center — shared styles. Source of truth for every lesson, the hub, and sign pages. */
:root{
  --navy:#0A1526; --ivory:#F6F7F2; --card:#FFFFFF; --ink:#131A24; --muted:#5B6572;
  --hairline:#E3E6DE; --volt:#A6F400; --volt-deep:#7BC400; --green:#3E7A00;
  --wrong:#E5484D;
  --sign-red:#C8102E; --sign-yellow:#FFC72C; --sign-orange:#ED7000;
  --sign-green:#00703C; --sign-blue:#00539B; --sign-brown:#6B4C35; --sign-fyg:#CBEA3C;
  --serif:'Cormorant Garamond',Georgia,serif; --sans:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box}
html{overflow-x:clip;scroll-behavior:smooth}
[hidden]{display:none!important}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--ivory);line-height:1.6}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:lining-nums tabular-nums}

nav{position:sticky;top:0;z-index:40;background:rgba(246,247,242,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--hairline)}
.nav-in{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:14px}
.brand{font-family:var(--serif);font-weight:600;font-size:19px;color:var(--ink);text-decoration:none;white-space:nowrap}
.brand b{color:var(--green)}
.nav-links{display:flex;align-items:center;gap:18px}
.nav-link{font-size:13.5px;font-weight:600;color:var(--muted);text-decoration:none}
.nav-link:hover{color:var(--ink)}
.nav-cta{background:var(--volt);color:var(--navy);font-weight:700;font-size:14px;text-decoration:none;padding:10px 20px;border-radius:999px;white-space:nowrap}
.nav-cta:hover{background:var(--volt-deep)}
@media(max-width:640px){
  .nav-link{display:none}
  /* Guard: whatever the CTA label ends up saying, it can never push the page
     sideways on a phone. A long label used to add 35px of horizontal scroll. */
  .nav-in{flex-wrap:nowrap}
  .brand{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .nav-cta{flex:none;padding:9px 15px;font-size:13px;max-width:58vw;
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
}

/* Progress strip (lesson pages) */
.progress-strip{border-bottom:1px solid var(--hairline);background:var(--card)}
.progress-in{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0}
.progress-label{font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.progress-label b{color:var(--green)}
.progress-segs{display:flex;gap:5px}
.progress-segs span{width:26px;height:6px;border-radius:99px;background:var(--hairline)}
.progress-segs span.done{background:var(--volt-deep)}
.progress-segs span.here{background:var(--navy)}
@media(max-width:480px){.progress-segs span{width:16px}}

.hero{padding:64px 0 52px;text-align:center}
.eyebrow{letter-spacing:.16em;text-transform:uppercase;font-size:12px;font-weight:700;color:var(--green)}
h1{font-family:var(--serif);font-weight:600;font-size:clamp(38px,5.4vw,64px);line-height:1.06;margin:14px auto 18px;max-width:820px;color:var(--navy)}
.hero p{max-width:640px;margin:0 auto;font-size:17px;color:var(--muted)}
.hero-signs{display:flex;justify-content:center;gap:26px;margin:44px auto 0;flex-wrap:wrap}
.hero-signs svg{filter:drop-shadow(0 6px 14px rgba(10,21,38,.14))}

section{padding:64px 0}
h2{font-family:var(--serif);font-weight:600;font-size:clamp(30px,4vw,46px);line-height:1.1;color:var(--navy);margin:0 0 8px}
.lede{font-size:16.5px;color:var(--muted);max-width:660px;margin:0 0 36px}
.grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.grid.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media(max-width:960px){.grid,.grid.g3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:480px){.grid,.grid.g3{grid-template-columns:1fr}}
.card{background:var(--card);border:1px solid var(--hairline);border-radius:16px;padding:22px 20px;text-align:center}
.card svg{margin-bottom:14px}
.card h3{font-size:15px;font-weight:700;margin:0 0 6px;color:var(--navy)}
.card p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.5}
.card .trick{display:block;margin-top:10px;font-size:12.5px;font-weight:600;color:var(--green);background:rgba(166,244,0,.14);border-radius:8px;padding:6px 10px}

.pairs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
@media(max-width:960px){.pairs{grid-template-columns:1fr}}
.pair{background:var(--card);border:1px solid var(--hairline);border-radius:18px;padding:26px 24px}
.pair .duo{display:flex;justify-content:center;align-items:center;gap:20px;margin-bottom:18px;min-height:110px}
.pair h3{font-family:var(--serif);font-size:23px;font-weight:600;color:var(--navy);margin:0 0 8px;text-align:center}
.pair p{font-size:14px;color:var(--muted);margin:0}
.pair p b{color:var(--ink)}

/* Story / rule blocks (text-led lesson sections) */
.rules{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
@media(max-width:820px){.rules{grid-template-columns:1fr}}
.rule{background:var(--card);border:1px solid var(--hairline);border-radius:18px;padding:26px 24px;text-align:left}
.rule .art{display:flex;justify-content:center;margin-bottom:16px}
.rule h3{font-family:var(--serif);font-size:23px;font-weight:600;color:var(--navy);margin:0 0 8px}
.rule p{font-size:14px;color:var(--muted);margin:0}
.rule p b{color:var(--ink)}
.rule .trick{display:inline-block;margin-top:12px;font-size:12.5px;font-weight:600;color:var(--green);background:rgba(166,244,0,.14);border-radius:8px;padding:6px 10px}

/* Quiz */
.quiz-sec{background:var(--navy);border-radius:28px;padding:64px 40px;color:#fff}
@media(max-width:640px){.quiz-sec{padding:44px 20px;border-radius:20px}}
.quiz-sec h2{color:#fff}
.quiz-sec .lede{color:rgba(255,255,255,.72)}
.q{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:16px;padding:24px;margin-bottom:18px}
.q .qt{font-size:16.5px;font-weight:600;margin:0 0 16px;line-height:1.5}
.q .qt .qn{color:var(--volt);margin-right:8px}
.opts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media(max-width:640px){.opts{grid-template-columns:1fr}}
.opt{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;border-radius:12px;padding:13px 16px;font-size:14.5px;font-family:var(--sans);text-align:left;cursor:pointer;transition:background .15s}
.opt:hover{background:rgba(255,255,255,.16)}
.q.answered .opt{cursor:default;opacity:.55}
.q.answered .opt.correct{background:var(--volt);border-color:var(--volt);color:var(--navy);font-weight:700;opacity:1}
.q.answered .opt.picked-wrong{background:var(--wrong);border-color:var(--wrong);color:#fff;font-weight:600;opacity:1}
.expl{margin:16px 0 0;font-size:14px;line-height:1.6;color:rgba(255,255,255,.85);border-left:3px solid var(--volt);padding-left:14px}
.quiz-done{text-align:center;margin-top:28px;font-size:16px}
.quiz-done .num{color:var(--volt);font-weight:700}

/* Lesson-complete celebration (rendered by learn.js when the quiz finishes) */
.celebrate{display:block;font-family:var(--serif);font-size:28px;font-weight:600;color:#fff;margin-bottom:6px}
.cel-check{display:inline-flex;width:36px;height:36px;border-radius:50%;background:var(--volt);color:var(--navy);align-items:center;justify-content:center;font-size:20px;font-weight:800;margin-right:10px;vertical-align:middle}
.cel-line{display:block;font-size:15px;color:rgba(255,255,255,.8);margin-bottom:18px}
.cel-line b{color:var(--volt)}
.cel-next{display:inline-block;background:var(--volt);color:var(--navy);font-weight:800;font-size:15px;text-decoration:none;padding:13px 28px;border-radius:999px}
.cel-next:hover{background:var(--volt-deep)}

/* Animated explanations (the Motion Studio pattern: SVG + transform/opacity keyframes only) */
.anim-card{background:var(--card);border:1px solid var(--hairline);border-radius:18px;padding:28px 22px;text-align:center}
.anim-card svg{max-width:100%;height:auto}
.anim-cap{font-size:14px;color:var(--muted);max-width:560px;margin:14px auto 0}
@keyframes fw-a{
  0%{transform:translate(0,70px);opacity:0}
  5%{opacity:1}
  14%{transform:translate(0,0)}
  32%{transform:translate(0,0)}
  52%{transform:translate(0,-150px)}
  88%{transform:translate(0,-150px);opacity:1}
  94%{opacity:0}
  100%{transform:translate(0,70px);opacity:0}
}
@keyframes fw-b{
  0%{transform:translate(-70px,0);opacity:0}
  5%{opacity:1}
  14%{transform:translate(0,0)}
  58%{transform:translate(0,0)}
  78%{transform:translate(150px,0)}
  88%{transform:translate(150px,0);opacity:1}
  94%{opacity:0}
  100%{transform:translate(-70px,0);opacity:0}
}
.fw-a{animation:fw-a 9s ease-in-out infinite}
.fw-b{animation:fw-b 9s ease-in-out infinite}

/* Freeway merge: volt car builds speed on the ramp and blends into the gap */
@keyframes mg-v{
  0%{transform:translate(0,0) rotate(-12deg);opacity:0}
  6%{opacity:1}
  30%{transform:translate(70px,-8px) rotate(-9deg)}
  52%{transform:translate(150px,-24px) rotate(-5deg)}
  68%{transform:translate(214px,-40px) rotate(0deg)}
  90%{transform:translate(330px,-40px) rotate(0deg);opacity:1}
  96%{opacity:0}
  100%{transform:translate(0,0) rotate(-12deg);opacity:0}
}
@keyframes mg-a{
  0%{transform:translate(-60px,0)}
  92%{transform:translate(382px,0);opacity:1}
  96%{opacity:0}
  100%{transform:translate(-60px,0);opacity:0}
}
@keyframes mg-b{
  0%{transform:translate(-260px,0)}
  92%{transform:translate(182px,0);opacity:1}
  96%{opacity:0}
  100%{transform:translate(-260px,0);opacity:0}
}
@keyframes mg-c{
  0%{transform:translate(-140px,0)}
  92%{transform:translate(302px,0);opacity:1}
  96%{opacity:0}
  100%{transform:translate(-140px,0);opacity:0}
}
.mg-v{animation:mg-v 9s ease-in-out infinite;transform-origin:center}
.mg-a{animation:mg-a 9s linear infinite}
.mg-b{animation:mg-b 9s linear infinite}
.mg-c{animation:mg-c 9s linear infinite}
@media(prefers-reduced-motion:reduce){.fw-a,.fw-b,.mg-v,.mg-a,.mg-b,.mg-c{animation:none}}

/* Continue learning (replaces hard sells) */
.continue{padding:80px 0}
.continue h2{text-align:center}
.continue .lede{text-align:center;margin-left:auto;margin-right:auto}
.next-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:8px}
@media(max-width:900px){.next-grid{grid-template-columns:1fr}}
.next-card{display:block;background:var(--card);border:1px solid var(--hairline);border-radius:18px;padding:24px 22px;text-decoration:none;color:var(--ink);transition:transform .2s,box-shadow .2s}
.next-card:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(10,21,38,.10)}
.next-card .k{font-size:11.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:8px}
.next-card h3{font-family:var(--serif);font-size:24px;font-weight:600;color:var(--navy);margin:0 0 6px;line-height:1.15}
.next-card p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.5}
.next-card .go{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:700;color:var(--green)}
.next-card.featured{background:var(--navy);border-color:var(--navy)}
.next-card.featured h3{color:#fff}
.next-card.featured p{color:rgba(255,255,255,.72)}
.next-card.featured .k{color:rgba(255,255,255,.55)}
.next-card.featured .go{color:var(--volt)}
.app-line{text-align:center;margin-top:34px;font-size:14px;color:var(--muted)}
.app-line a{color:var(--green);font-weight:600}

/* Hub */
.hub-progress{background:var(--card);border:1px solid var(--hairline);border-radius:18px;padding:24px 26px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.hub-progress .t{font-size:14px;color:var(--muted)}
.hub-progress .t b{color:var(--navy);font-size:16px}
.hub-bar{flex:1 1 260px;height:8px;border-radius:99px;background:var(--hairline);overflow:hidden}
.hub-bar i{display:block;height:100%;width:0%;background:var(--volt-deep);border-radius:99px;transition:width .6s ease}
.lesson-list{display:grid;gap:14px;margin-top:26px}
.lesson-row{display:flex;align-items:center;gap:20px;background:var(--card);border:1px solid var(--hairline);border-radius:18px;padding:20px 24px;text-decoration:none;color:var(--ink);transition:transform .2s,box-shadow .2s}
.lesson-row:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(10,21,38,.10)}
.lesson-row .ln{font-family:var(--serif);font-size:30px;font-weight:600;color:var(--hairline);min-width:44px;text-align:center}
.lesson-row.done .ln{color:var(--volt-deep)}
.lesson-row .lt{flex:1}
.lesson-row .lt h3{font-family:var(--serif);font-size:24px;font-weight:600;color:var(--navy);margin:0 0 3px;line-height:1.15}
.lesson-row .lt p{font-size:13.5px;color:var(--muted);margin:0}
.lesson-badge{font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px;background:var(--ivory);border:1px solid var(--hairline);color:var(--muted);white-space:nowrap}
.lesson-row.done .lesson-badge{background:rgba(166,244,0,.18);border-color:var(--volt-deep);color:var(--green)}
.lesson-row.started .lesson-badge{background:rgba(10,21,38,.06);color:var(--navy)}
@media(max-width:640px){.lesson-row{gap:14px;padding:16px 18px}.lesson-row .ln{font-size:24px;min-width:32px}.lesson-row .lt h3{font-size:20px}}
.soon{margin-top:30px;text-align:center;font-size:13.5px;color:var(--muted)}

/* Sign library */
.sign-hero{display:flex;justify-content:center;margin:34px 0 8px}
.sign-hero svg{filter:drop-shadow(0 10px 24px rgba(10,21,38,.18))}
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
@media(max-width:900px){.facts{grid-template-columns:repeat(2,minmax(0,1fr))}}
.fact{background:var(--card);border:1px solid var(--hairline);border-radius:14px;padding:16px 18px;text-align:left}
.fact .k{font-size:11px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:4px}
.fact .v{font-size:15px;font-weight:600;color:var(--navy)}
.mean{background:var(--card);border:1px solid var(--hairline);border-radius:18px;padding:28px 26px;margin-top:16px}
.mean h3{font-family:var(--serif);font-size:24px;font-weight:600;color:var(--navy);margin:0 0 8px}
.mean p{font-size:15px;color:var(--muted);margin:0 0 10px;line-height:1.65}
.mean p b{color:var(--ink)}
.mistake{border-left:4px solid var(--wrong);background:#FDF3F3;border-radius:0 14px 14px 0;padding:18px 20px;margin-top:16px}
.mistake .k{font-size:11.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--wrong)}
.mistake p{font-size:14px;color:var(--ink);margin:6px 0 0}
.trickbox{border-left:4px solid var(--volt-deep);background:rgba(166,244,0,.10);border-radius:0 14px 14px 0;padding:18px 20px;margin-top:14px}
.trickbox .k{font-size:11.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--green)}
.trickbox p{font-size:14px;color:var(--ink);margin:6px 0 0}
.sign-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
@media(max-width:960px){.sign-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:420px){.sign-grid{grid-template-columns:1fr}}
.sign-tile{display:block;background:var(--card);border:1px solid var(--hairline);border-radius:16px;padding:20px 16px;text-align:center;text-decoration:none;color:var(--ink);transition:transform .2s,box-shadow .2s}
.sign-tile:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(10,21,38,.10)}
.sign-tile svg{margin-bottom:10px}
.sign-tile h3{font-size:14px;font-weight:700;margin:0;color:var(--navy)}
.sign-tile p{font-size:12px;color:var(--muted);margin:4px 0 0}
.cat-h{margin-top:26px}

footer{border-top:1px solid var(--hairline);padding:28px 0 40px;font-size:12.5px;color:var(--muted);text-align:center;line-height:1.7}
footer a{color:var(--green)}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.next-card,.lesson-row,.sign-tile{transition:none}.hub-bar i{transition:none}}