/* ROBOTION — 도로법규 판단 가이드 : premium design system */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@500;600;700&display=swap');

:root{
  --navy:#132a4d; --navy-2:#1d3a63; --navy-3:#24467a;
  --teal:#0e7c86; --teal-2:#12a3a3; --accent:#0e7c86;
  --ink:#1f2b3d; --muted:#5c6b80; --faint:#8494a7;
  --line:#e6ebf2; --line-2:#eef2f7;
  --bg:#ffffff; --surface:#f5f8fb; --offwhite:#f8fafc; --band:#f2f6fa;
  --ok:#0e7c86; --warn:#b4541a;
  --r-sm:10px; --r:14px; --r-lg:20px; --r-xl:26px;
  --shadow-sm:0 2px 8px rgba(19,42,77,.06);
  --shadow:0 6px 24px rgba(19,42,77,.09);
  --shadow-lg:0 18px 50px rgba(19,42,77,.16);
  --maxw:1140px; --readw:820px;
  --sans:'Pretendard',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  --serif:'Noto Serif KR',var(--sans);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);
  font-size:17px;line-height:1.75;letter-spacing:-.01em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{color:var(--navy);line-height:1.32;letter-spacing:-.02em;margin:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;
  padding:13px 22px;border-radius:999px;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease;min-height:46px}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--navy);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--navy-2);box-shadow:var(--shadow);color:#fff}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{background:rgba(255,255,255,.22);color:#fff}
.btn-outline{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-outline:hover{border-color:var(--navy);color:var(--navy)}
:focus-visible{outline:3px solid var(--teal-2);outline-offset:2px;border-radius:6px}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:18px;height:70px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700}
.brand img{width:38px;height:38px;border-radius:10px}
.brand-name{font-size:18px;color:var(--navy);letter-spacing:-.02em;line-height:1.15}
.brand-sub{display:block;font-size:11px;color:var(--faint);font-weight:600;letter-spacing:.02em}
.nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.nav a{color:var(--ink);font-weight:600;font-size:15px;padding:9px 13px;border-radius:10px;transition:background .15s,color .15s}
.nav a:hover{background:var(--surface);color:var(--navy);text-decoration:none}
.nav .nav-cta{background:var(--navy);color:#fff}
.nav .nav-cta:hover{background:var(--navy-2);color:#fff}
.nav-toggle,.nav-check{display:none}
@media(max-width:900px){
  .nav-toggle{display:flex;margin-left:auto;flex-direction:column;gap:5px;width:46px;height:46px;
    align-items:center;justify-content:center;background:none;border:1px solid var(--line);border-radius:12px;cursor:pointer}
  .nav-toggle span{width:20px;height:2px;background:var(--navy);border-radius:2px}
  .nav{position:fixed;inset:70px 0 auto 0;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 20px;box-shadow:var(--shadow);
    transform:translateY(-140%);transition:transform .28s ease;max-height:calc(100vh - 70px);overflow:auto}
  .nav-check:checked ~ .nav{transform:translateY(0)}
  .nav a{padding:13px 12px;font-size:16px}
}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--navy)}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(19,42,77,.95) 0%,rgba(19,42,77,.72) 46%,rgba(14,124,134,.55) 100%)}
.hero-in{position:relative;max-width:var(--maxw);margin:0 auto;padding:96px 20px 84px}
.hero .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  letter-spacing:.04em;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  padding:7px 14px;border-radius:999px;margin-bottom:22px}
.hero h1{font-family:var(--serif);font-size:clamp(34px,6vw,60px);font-weight:700;color:#fff;line-height:1.18;
  letter-spacing:-.03em;max-width:16ch}
.hero p.lead{margin:20px 0 0;font-size:clamp(16px,2.2vw,20px);line-height:1.7;color:rgba(255,255,255,.9);max-width:52ch}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.hero-jump{margin-top:40px;display:flex;flex-wrap:wrap;gap:9px}
.hero-jump a{font-size:14px;font-weight:600;color:#fff;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.24);padding:9px 15px;border-radius:999px;transition:background .15s}
.hero-jump a:hover{background:rgba(255,255,255,.22);text-decoration:none}

/* ---------- section ---------- */
.section{padding:84px 0}
.section.band{background:var(--band)}
.section.tight{padding:60px 0}
.sec-head{max-width:640px;margin:0 auto 46px;text-align:center}
.sec-head.left{margin-left:0;text-align:left}
.sec-head .eyebrow{color:var(--teal);font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase}
.sec-head h2{font-size:clamp(24px,3.4vw,34px);margin:12px 0 0}
.sec-head p{color:var(--muted);margin:14px 0 0;font-size:16px}

/* ---------- category cards ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media(max-width:900px){.cat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.cat-grid{grid-template-columns:1fr}}
.cat-card{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent;text-decoration:none}
.cat-ic{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--navy),var(--teal));color:#fff}
.cat-ic svg{width:26px;height:26px}
.cat-card h3{font-size:19px}
.cat-card p{color:var(--muted);font-size:14.5px;margin:0;line-height:1.65}
.cat-card .more{margin-top:auto;color:var(--teal);font-weight:600;font-size:14px}

/* ---------- carousel ---------- */
.carousel{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 20px 26px;margin:0 -20px;-webkit-overflow-scrolling:touch;scrollbar-width:thin}
.carousel::-webkit-scrollbar{height:8px}
.carousel::-webkit-scrollbar-thumb{background:var(--line);border-radius:9px}
.c-card{scroll-snap-align:start;flex:0 0 300px;max-width:300px}

/* ---------- post cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media(max-width:900px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.card-grid{grid-template-columns:1fr}}
.p-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease}
.p-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);text-decoration:none}
.p-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface)}
.p-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.p-card:hover .p-thumb img{transform:scale(1.05)}
.p-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.p-cat{font-size:12px;font-weight:700;color:var(--teal);letter-spacing:.02em}
.p-card h3{font-size:18px;line-height:1.4;color:var(--navy)}
.p-card p{color:var(--muted);font-size:14px;margin:0;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.p-more{margin-top:auto;color:var(--navy);font-weight:600;font-size:13.5px}

/* ---------- notice band ---------- */
.info-band{display:grid;grid-template-columns:1.2fr 1fr;gap:28px}
@media(max-width:800px){.info-band{grid-template-columns:1fr}}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 26px;box-shadow:var(--shadow-sm)}
.info-card h3{font-size:19px;margin-bottom:10px}
.info-card ul{margin:8px 0 0;padding-left:18px;color:var(--muted);font-size:14.5px;line-height:1.8}
.src-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.src-links a{font-size:13.5px;font-weight:600;background:var(--surface);border:1px solid var(--line);
  padding:8px 13px;border-radius:999px;color:var(--navy)}

/* ---------- footer ---------- */
.site-foot{background:var(--navy);color:rgba(255,255,255,.82);padding:60px 0 34px;margin-top:0}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12)}
@media(max-width:800px){.foot-top{grid-template-columns:1fr;gap:24px}}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.foot-brand img{width:36px;height:36px;border-radius:9px}
.foot-brand b{color:#fff;font-size:17px}
.site-foot p{font-size:14px;line-height:1.7;margin:0 0 8px}
.foot-col h4{color:#fff;font-size:14px;margin-bottom:14px;letter-spacing:.02em}
.foot-col a{display:block;color:rgba(255,255,255,.72);font-size:14px;padding:5px 0}
.foot-col a:hover{color:#fff}
.foot-legal{font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.75;margin-top:24px}
.foot-legal p{font-size:12.5px;margin:0 0 6px}
.foot-copy{margin-top:20px;font-size:12.5px;color:rgba(255,255,255,.5)}

/* ---------- article ---------- */
.post-hero{position:relative;color:#fff;background:var(--navy);overflow:hidden}
.post-hero-bg{position:absolute;inset:0}
.post-hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.34}
.post-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(19,42,77,.94),rgba(19,42,77,.66) 60%,rgba(14,124,134,.5))}
.post-hero-in{position:relative;max-width:var(--readw);margin:0 auto;padding:70px 20px 56px}
.post-hero .p-cat{color:#8fe3e3}
.post-hero h1{color:#fff;font-family:var(--serif);font-size:clamp(27px,4.6vw,42px);margin:12px 0 0;line-height:1.28}
.post-hero .meta{margin-top:16px;font-size:14px;color:rgba(255,255,255,.82)}
.article-wrap{max-width:var(--readw);margin:0 auto;padding:0 20px}
.breadcrumb{font-size:13px;color:var(--muted);padding:20px 0 0}
.breadcrumb a{color:var(--muted)}
.dlg-article{padding:34px 0 20px;font-size:17.5px}
.dlg-article h2{font-size:clamp(21px,3vw,27px);margin:52px 0 16px;padding-top:14px;
  border-top:1px solid var(--line);position:relative}
.dlg-article h2::before{content:"";position:absolute;top:-1px;left:0;width:52px;height:3px;background:var(--teal);border-radius:2px}
.dlg-article h3{font-size:19px;margin:30px 0 12px;color:var(--navy-2)}
.dlg-article p{margin:14px 0}
.dlg-article ul,.dlg-article ol{margin:14px 0;padding-left:22px}
.dlg-article li{margin:7px 0}
.dlg-article a{font-weight:600;text-decoration:underline;text-underline-offset:3px}
.dlg-article strong{color:var(--navy)}
.dlg-summary{background:linear-gradient(180deg,var(--offwhite),#fff);border:1px solid var(--line);
  border-left:4px solid var(--teal);border-radius:0 var(--r) var(--r) 0;padding:22px 24px;margin:8px 0 30px}
.dlg-summary-t{font-weight:700;color:var(--navy);margin:0 0 10px;font-size:16px}
.dlg-summary ul{margin:0;padding-left:20px}
.dlg-summary li{color:var(--ink);font-size:15.5px}
.dlg-tablewrap{overflow-x:auto;margin:22px 0;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-sm)}
table.dlg-table{width:100%;border-collapse:collapse;font-size:15px;min-width:460px;background:#fff}
.dlg-table thead th{background:var(--navy);color:#fff;font-weight:600;text-align:left;padding:13px 16px;font-size:14.5px}
.dlg-table td,.dlg-table th{padding:12px 16px;border-bottom:1px solid var(--line-2);vertical-align:top}
.dlg-table tbody tr:nth-child(even){background:var(--offwhite)}
.dlg-table tbody tr:last-child td{border-bottom:none}
.dlg-callout{background:#eef7f7;border:1px solid #cfe9e9;border-radius:var(--r);padding:20px 22px;margin:24px 0}
.dlg-callout-t{font-weight:700;color:var(--teal);margin:0 0 8px;font-size:15px}
.dlg-callout p{margin:6px 0}
.dlg-chart{margin:24px 0;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 22px}
.dlg-chart-row{display:flex;align-items:center;gap:14px;margin:11px 0}
.dlg-chart-lab{flex:0 0 132px;font-size:13.5px;font-weight:600;color:var(--navy);text-align:right}
.dlg-bar{position:relative;height:30px;border-radius:8px;background:linear-gradient(90deg,var(--navy),var(--teal));
  width:var(--v,50%);min-width:64px;display:flex;align-items:center;color:#fff;font-size:12.5px;font-weight:600;padding:0 12px}
.dlg-flow{list-style:none;counter-reset:step;display:flex;flex-wrap:wrap;gap:10px;padding:0;margin:24px 0}
.dlg-flow li{counter-increment:step;position:relative;flex:1 1 140px;min-width:130px;background:var(--surface);
  border:1px solid var(--line);border-radius:12px;padding:16px 14px 14px;font-size:14px;font-weight:600;color:var(--navy)}
.dlg-flow li::before{content:counter(step);display:flex;align-items:center;justify-content:center;
  width:24px;height:24px;border-radius:50%;background:var(--teal);color:#fff;font-size:12px;margin-bottom:9px}
.dlg-steps{counter-reset:s;list-style:none;padding:0}
.dlg-steps li{counter-increment:s;position:relative;padding:6px 0 14px 42px;margin:0}
.dlg-steps li::before{content:counter(s);position:absolute;left:0;top:2px;width:28px;height:28px;border-radius:50%;
  background:var(--navy);color:#fff;font-size:13px;font-weight:600;display:flex;align-items:center;justify-content:center}
.dlg-fig{margin:26px 0}
.dlg-fig img{border-radius:var(--r);box-shadow:var(--shadow-sm);width:100%}
.dlg-fig figcaption{font-size:13px;color:var(--faint);text-align:center;margin-top:9px}
.dlg-faq{margin:16px 0}
.dlg-faq details{border:1px solid var(--line);border-radius:var(--r);margin:10px 0;background:#fff;overflow:hidden}
.dlg-faq summary{cursor:pointer;padding:16px 20px;font-weight:600;color:var(--navy);list-style:none;position:relative;font-size:16px}
.dlg-faq summary::-webkit-details-marker{display:none}
.dlg-faq summary::after{content:"+";position:absolute;right:20px;top:14px;font-size:20px;color:var(--teal);font-weight:400;transition:transform .2s}
.dlg-faq details[open] summary::after{transform:rotate(45deg)}
.dlg-faq details p{margin:0;padding:0 20px 18px;color:var(--muted);font-size:15px}

/* TOC */
.dlg-toc{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px 24px;margin:6px 0 10px}
.dlg-toc b{color:var(--navy);font-size:15px;display:block;margin-bottom:10px}
.dlg-toc ol{margin:0;padding-left:20px;columns:2;column-gap:28px}
@media(max-width:600px){.dlg-toc ol{columns:1}}
.dlg-toc a{color:var(--ink);font-size:14.5px;font-weight:500;text-decoration:none}
.dlg-toc a:hover{color:var(--teal)}

/* notices appended */
.ai-notice{font-size:.85em;color:#888;margin-top:2em}
.legal-notice{font-size:.85em;color:#777;background:#f8f9fa;border-left:3px solid #cbd5e1;padding:10px 14px;margin-top:2em;border-radius:0 6px 6px 0}

/* related */
.related{border-top:1px solid var(--line);margin-top:44px;padding-top:34px}
.related h3{font-size:20px;margin-bottom:20px}

/* page (static) */
.page-hero{background:var(--band);border-bottom:1px solid var(--line)}
.page-hero-in{max-width:var(--readw);margin:0 auto;padding:54px 20px 40px}
.page-hero h1{font-size:clamp(26px,4vw,38px)}
.page-hero p{color:var(--muted);margin:12px 0 0}
.page-body{max-width:var(--readw);margin:0 auto;padding:40px 20px 30px;font-size:17px}
.page-body h2{font-size:22px;margin:34px 0 12px}
.page-body h3{font-size:18px;margin:24px 0 10px;color:var(--navy-2)}
.page-body p,.page-body li{color:var(--ink)}
.page-body ul,.page-body ol{padding-left:22px}
.page-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
.page-body th,.page-body td{border:1px solid var(--line);padding:10px 13px;text-align:left}
.page-body th{background:var(--surface)}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}
html{scroll-behavior:smooth}
.skip-link{position:absolute;left:-999px;top:0;background:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip-link:focus{left:12px;top:12px}