/* Shared visual language: clear surfaces, deliberate hierarchy, familiar actions. */
:root {color-scheme:light;--bg:#f5f7fa;--cream:#f5f7fa;--card:#fff;--ink:#172b43;--muted:#617184;--line:#e3e8ef;--yellow:#ffcf48;--yellow-ink:#172b43;--green:#172b43;--green-ink:#fff;--accent:#172b43;--accent-ink:#fff;--danger:#bf3d3d;--live:#137d68;--live-bg:#e8f5ef;--notice:#fff7dc;--radius:18px}
body {background:var(--bg);color:var(--ink);font-size:16px;line-height:1.65;letter-spacing:-.015em;-webkit-font-smoothing:antialiased}
h1,h2,h3 {color:var(--ink);letter-spacing:-.035em}
button,a,input,summary,select,textarea {transition:background-color .16s,border-color .16s,box-shadow .16s}
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible {outline:3px solid #4977ad;outline-offset:3px}
button:hover:not(:disabled),a.btn:hover,.button:hover {filter:brightness(.96)}
.card {background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:0 4px 20px #172b4304}
.btn,.button {min-height:48px;border-radius:12px;font-size:15px;font-weight:700}
.btn-big {min-height:52px;font-size:15px}
.btn-small {min-height:42px;font-size:14px;border-radius:10px}
.btn-plain,.plain,.secondary {background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-danger {color:var(--danger);background:#fff7f7;border-color:#f1dada}
.muted,.link-hint {color:var(--muted)}
input[type=text],input[type=email],input[type=search],input[type=password],select,textarea {background:#fff;color:var(--ink);border:1px solid #cbd5e1;border-radius:12px;font-size:16px;min-height:48px}
dialog,.setup-complete {background:white;color:var(--ink);border:1px solid var(--line);border-radius:22px;box-shadow:0 24px 80px #172b4333}
dialog::backdrop,.parent-qr-dialog::backdrop {background:#172b4370;backdrop-filter:none}
.brand-strip {height:76px;background:#fff;border-bottom:1px solid var(--line);padding:0 max(24px,calc((100vw - 1100px)/2));display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand-strip a {display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:700;font-size:20px}
.brand-strip img {width:38px;height:38px}
.brand-strip span {font-size:13px;color:var(--muted)}
.brand-strip-right {display:flex;align-items:center;gap:14px}
.site-home {background:#fff}
.site-home header {padding-top:20px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.site-home .hero {padding:76px 0 64px;grid-template-columns:1.2fr 1fr;gap:64px}
.site-home h1 {font-size:clamp(38px,4.6vw,58px);line-height:1.22;margin:22px 0}
.site-home h1 span {color:var(--ink);box-shadow:inset 0 -.22em 0 #ffdf7c}
.site-home .eyebrow {display:inline-flex;align-items:center;gap:8px;color:#57677b;font-size:13px;letter-spacing:0;margin:0}
.site-home .hero .eyebrow {background:#f2f5f9;padding:7px 12px;border-radius:8px}
.site-home .intro {font-size:17px;line-height:1.9}
.site-home .hero-art {align-self:center;background:#f3f6fa;border:1px solid var(--line);border-radius:28px;padding:34px 24px 24px;position:relative}
.site-home .hero-art img {width:78%;max-width:300px;margin:0 auto;border-radius:0}
.site-home .art-note {color:var(--inkSoft);font-size:13px;background:#fff;padding:14px 12px;border-radius:12px;border:1px solid var(--line);margin-top:24px}
.site-home .role-actions {grid-template-columns:1fr 1.4fr 1fr;gap:8px}
.site-home .role-picker summary,.site-home .role-actions>.button {border-radius:12px;font-size:13px;min-height:52px}
.site-home .role-picker summary {display:flex;align-items:center;justify-content:center;gap:8px;line-height:1.4}
.site-home .role-picker summary::after {content:"";display:block;flex:0 0 16px;width:16px;height:16px;background:center/16px 16px no-repeat url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='m4 6 4 4 4-4' fill='none' stroke='%23172b43' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");transition:transform .16s}
.site-home .role-picker[open] summary::after {content:"";transform:rotate(180deg)}
.site-home .section {border-color:var(--line);padding:64px 0}
.site-home .card {background:#f8fafc;padding:28px;border-color:var(--line)}
.site-home .card img {width:48px;height:48px}
.site-home .card h3 {font-size:19px}
.site-home .steps {gap:32px}
.site-home .steps li:before {color:#66758a;background:#f2f5f9;display:inline-flex;padding:6px 12px;border-radius:8px}
.site-home .cta {background:var(--ink);color:white;border-radius:22px;padding:36px}
.site-home .cta h2 {color:#fff}
.site-home .cta .button {background:var(--yellow);color:var(--ink)}
.feature-strip {display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:16px;background:#f8fafc;margin-bottom:64px;padding:22px}
.feature-strip div {text-align:center;border-right:1px solid var(--line);font-size:15px;font-weight:700}
.feature-strip div:last-child {border:0}
.feature-strip small {display:block;color:var(--muted);font-size:12px;font-weight:400;margin-top:5px}
.site-admin .wrap {max-width:1100px;padding:28px 24px 60px}
.site-admin #view-login,.site-admin #view-setup,.site-admin #view-error {max-width:460px;margin:24px auto}
.site-admin .wrap>p:first-child {display:none}
.site-admin .center-heading {margin-top:4px;margin-bottom:22px;align-items:center}
.site-admin .center-heading h1 {font-size:30px}
.site-admin .center-name-row {display:flex;align-items:center;gap:6px;min-width:0;flex:1 1 auto}
.site-admin .center-name-row h1 {min-width:0}
.site-admin .center-name-row .btn {flex-shrink:0}
.manage-summary {display:flex;gap:12px;flex-wrap:wrap;margin:0 0 28px}
.manage-summary span {background:#fff;border:1px solid var(--line);padding:12px 18px;border-radius:12px;color:var(--muted);font-size:14px}
.manage-summary strong {font-size:22px;color:var(--ink);margin-left:16px}
.manage-summary .live-count strong {color:var(--live)}
.manage-grid {display:grid;grid-template-columns:minmax(0,1.7fr) minmax(280px,1fr);gap:24px;align-items:start}
.manage-grid>.card {margin:0;padding:24px;min-width:0}
.section-heading {display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:18px}
.section-heading h2 {margin:0;font-size:19px}
.section-caption {font-size:13px;color:var(--muted);margin:6px 0 18px}
.site-admin .vitem {padding:20px 0;border-color:var(--line)}
.site-admin .vhead {gap:14px;align-items:center}
.site-admin .vname {font-size:18px;line-height:1.4}
.site-admin .vstatus {display:inline-flex;font-size:12px;margin-top:7px;padding:3px 8px;border-radius:6px;background:#f1f4f8;color:var(--muted)}
.site-admin .vstatus.live {color:var(--live);background:var(--live-bg)}
.site-admin .vactions {gap:6px;flex-shrink:0}
.site-admin .vactions .btn {font-size:12px;min-height:36px;padding:7px 10px}
.site-admin .vehicle-qr {width:64px;height:83px;padding:4px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:none}
.site-admin .vehicle-qr img {width:54px;height:54px}
.site-admin .vehicle-qr:after {content:'설치 QR';display:block;color:var(--muted);font-size:10px;margin-top:3px}
.site-admin .vehicle-qr:hover {transform:translateY(-2px);box-shadow:0 4px 12px #172b4312;border-color:#aebdce}
.site-admin #add-form {border-top:1px solid var(--line);padding-top:18px;margin-top:4px;gap:8px}
.site-admin #add-form input {font-size:14px}
.site-admin #add-form button {white-space:nowrap;width:auto;font-size:14px}
.share-role {display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;margin:0 0 12px}
.share-role img {width:32px;height:32px}
.site-admin .share-row {gap:6px}
.site-admin .share-row .btn {font-size:12px;padding:10px}
.site-admin .share-row>.btn {min-width:58px}
.site-admin .link-block {border-color:var(--line);margin-top:20px;padding-top:20px}
.site-admin .link-hint {font-size:13px;line-height:1.65;margin:10px 0 0}
.site-admin .hero .logo {width:76px;height:76px}
.parent-qr-dialog .qr-actions {position:sticky;bottom:-24px;background:#fff;padding:16px 0 8px;box-shadow:0 -8px 18px #ffffffee}
.site-admin .hero h1 {font-size:28px}
.site-admin .hero p {font-size:15px;color:var(--muted)}
.site-admin .divider {font-size:13px}
.site-operator main {max-width:1100px}
.site-operator button {background:var(--ink);font-size:14px}
.site-operator button.plain {background:#fff;color:var(--ink)}
.site-operator th {background:#f7f9fc;color:var(--muted)}
.site-operator th,.site-operator td {border-color:var(--line)}
.site-operator .table-wrap {border-radius:16px;padding:8px 20px}
.site-operator .summary {background:#edf3f8;border:1px solid var(--line);padding:16px 20px;border-radius:12px;color:var(--ink);font-size:16px}
.site-connect .wrap {padding-top:48px}
.site-connect .logo {width:80px;height:80px}
.site-connect h1 {font-size:28px;line-height:1.35}
.site-legal main,.site-legal .wrap {background:#fff;border:1px solid var(--line);border-radius:20px;margin-top:32px;margin-bottom:32px;padding:32px}
@media(max-width:800px){
 .manage-grid {grid-template-columns:1fr;gap:20px}
 .site-home .hero {gap:28px;padding:40px 0;grid-template-columns:1fr}
 .site-home .hero-art {max-width:400px;width:100%;justify-self:center}
 .site-home .role-actions {grid-template-columns:1fr}
 .site-home .role-picker summary,.site-home .role-actions>.button {font-size:15px}
 .feature-strip {padding:16px 8px;margin-bottom:40px}
 .feature-strip div {font-size:13px}
 .feature-strip small {font-size:11px}
}
@media(max-width:480px){
 .brand-strip {height:64px;padding:0 20px}.brand-strip span {font-size:11px}.brand-strip a {font-size:18px}
 .site-admin .wrap {padding:20px 16px 40px}
 .site-admin .center-heading {align-items:start;gap:12px}.site-admin .center-heading h1 {font-size:25px}
 .manage-grid>.card {padding:20px}
 .manage-summary {gap:8px}.manage-summary span {padding:10px 14px}.manage-summary strong {font-size:20px;margin-left:10px}
 .site-admin .vhead {flex-wrap:wrap}.site-admin .vactions {width:100%;justify-content:flex-end}.site-admin .vactions .btn {flex:0 0 auto;min-height:40px;font-size:13px}
 .site-home h1 {font-size:39px}.site-home .intro {font-size:16px}
 .site-home .section {padding:40px 0}.site-home .cta {padding:26px}.site-home .cta h2 {font-size:24px}
 .site-operator .table-wrap {padding:0;background:transparent;border:0}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}