/* =====================================================================
   Korea Car Master — your personal car-buying agent in Korea
   Clean, trustworthy, professional. Mobile-first, no JS required.
   ===================================================================== */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#ffffff;--paper:#ffffff;--ink:#101826;--ink-2:#3b4658;--muted:#6b7689;
  --line:#e7eaef;--soft:#f5f7fa;--navy:#0e1726;--navy-2:#15233a;
  --accent:#f0a020;--accent-ink:#b9740a;--gold:#f0a020;
  --ok:#1f9d6b;--radius:12px;--radius-lg:18px;
  --shadow-sm:0 4px 16px rgba(16,24,38,.06);--shadow:0 14px 40px rgba(16,24,38,.10);--shadow-lg:0 28px 64px rgba(16,24,38,.16);
  --maxw:1140px;color-scheme:light;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,"Pretendard","Segoe UI",Roboto,system-ui,sans-serif;color:var(--ink);background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.wrap{width:min(var(--maxw),calc(100% - 40px));margin:0 auto}
.section{padding:68px 0}
.section.soft{background:var(--soft)}
.section.navy{background:var(--navy);color:#fff}
.center{text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;background:rgba(240,160,32,.14);color:var(--accent-ink);font-size:12.5px;font-weight:800;letter-spacing:.04em;text-transform:uppercase}
.section.navy .eyebrow{background:rgba(255,255,255,.1);color:#ffd58a}
.section-title{font-size:clamp(26px,3.6vw,40px);line-height:1.12;letter-spacing:-.02em;font-weight:850}
.lead{color:var(--muted);font-size:18px;max-width:640px}
.center .lead{margin-inline:auto}
.section.navy .lead{color:rgba(255,255,255,.76)}
.muted{color:var(--muted)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:50px;padding:0 24px;border-radius:12px;border:1px solid transparent;font-weight:800;font-size:15.5px;white-space:nowrap;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,background .12s ease}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:#1a1205;box-shadow:0 12px 26px rgba(240,160,32,.32)}
.btn-primary:hover{background:#ffb22e}
.btn-dark{background:var(--navy);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost.on-dark{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-block{width:100%}
.btn-sm{min-height:42px;padding:0 16px;font-size:14px}
.btn svg{width:18px;height:18px;fill:currentColor}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:68px}
.brand{display:flex;align-items:center;gap:11px;font-weight:900;font-size:17px;letter-spacing:-.01em}
.brand-mark{width:40px;height:40px;display:grid;place-items:center;border-radius:11px;background:var(--navy);color:var(--accent);font-size:18px;font-weight:900}
.brand small{display:block;font-size:10.5px;font-weight:700;letter-spacing:.1em;color:var(--accent-ink);text-transform:uppercase}
.nav-main{display:flex;align-items:center;gap:24px}
.nav-main a{font-size:14.5px;font-weight:700;color:var(--ink-2)}
.nav-main a:hover{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:12px}

/* hero */
.hero{position:relative;background:linear-gradient(180deg,#fbfcfe,#fff);overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(320px,.85fr);gap:44px;align-items:center;padding:64px 0 70px}
.hero h1{font-size:clamp(32px,5vw,52px);line-height:1.05;letter-spacing:-.025em;font-weight:850}
.hero h1 .hl{color:var(--accent-ink)}
.hero p.sub{margin-top:18px;max-width:540px;color:var(--ink-2);font-size:18.5px}
.hero .cta-row{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero .trust-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:13.5px;font-weight:600}
.hero .trust-row span{display:inline-flex;align-items:center;gap:7px}
.hero .trust-row svg{width:17px;height:17px;fill:none;stroke:var(--ok);stroke-width:2.4}
/* agent card */
.agent-card{position:relative;border-radius:22px;overflow:hidden;box-shadow:var(--shadow-lg);background:var(--soft);aspect-ratio:4/3}
.agent-card img{width:100%;height:100%;object-fit:cover}
.agent-badge{position:absolute;left:16px;bottom:16px;right:16px;display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);box-shadow:0 8px 24px rgba(0,0,0,.12)}
.agent-badge .av-dot{width:42px;height:42px;border-radius:50%;background:var(--navy);color:var(--accent);display:grid;place-items:center;font-weight:900;flex:none}
.agent-badge b{display:block;font-size:14.5px}
.agent-badge span{display:block;color:var(--muted);font-size:12.5px;font-weight:600}
.agent-badge .verify{margin-left:auto;display:inline-flex;align-items:center;gap:5px;color:var(--ok);font-size:12px;font-weight:800}
.agent-badge .verify svg{width:16px;height:16px;fill:none;stroke:var(--ok);stroke-width:2.4}

/* stat band */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{text-align:center}
.stat .n{font-size:clamp(28px,4vw,42px);font-weight:900;letter-spacing:-.02em;color:#fff}
.stat .n .u{color:var(--accent)}
.stat .t{margin-top:4px;color:rgba(255,255,255,.72);font-size:14px;font-weight:600}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px 22px;box-shadow:var(--shadow-sm)}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);display:inline-grid;place-items:center;width:46px;height:46px;margin-bottom:15px;border-radius:13px;background:var(--navy);color:var(--accent);font-weight:900;font-size:16px}
.step h3{font-size:17.5px;margin-bottom:7px}
.step p{color:var(--muted);font-size:14.5px}

/* generic grids + feature cards */
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.feature{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm)}
.feature .fi{width:50px;height:50px;display:grid;place-items:center;margin-bottom:16px;border-radius:13px;background:rgba(240,160,32,.14);color:var(--accent-ink)}
.feature .fi svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.feature h3{font-size:19px;margin-bottom:8px}
.feature p{color:var(--muted);font-size:15px}

/* split (meet the master) */
.split{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:46px;align-items:center}
.master-photo{border-radius:22px;overflow:hidden;box-shadow:var(--shadow);aspect-ratio:4/5;background:var(--soft)}
.master-photo img{width:100%;height:100%;object-fit:cover}
.prose p{color:var(--ink-2);margin-bottom:14px}
.checklist{display:grid;gap:11px;margin:18px 0 0}
.checklist li{display:flex;gap:11px;align-items:flex-start;color:var(--ink-2);font-size:15.5px}
.checklist svg{width:22px;height:22px;flex:none;fill:none;stroke:var(--ok);stroke-width:2.3;margin-top:1px}
.sig{margin-top:22px;display:flex;align-items:center;gap:14px}
.sig .av{width:52px;height:52px;border-radius:50%;object-fit:cover;border:2px solid var(--line)}
.sig b{display:block}.sig span{color:var(--muted);font-size:13.5px}

/* proof strip */
.proof{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.proof figure{margin:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);background:var(--soft)}
.proof img{width:100%;aspect-ratio:16/10;object-fit:cover}
.proof figcaption{padding:13px 16px;font-size:13.5px;color:var(--ink-2);font-weight:600}

/* what we buy chips */
.chips{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chips .chip{padding:10px 18px;border:1px solid var(--line);border-radius:999px;background:#fff;font-weight:700;font-size:14.5px;color:var(--ink-2);box-shadow:var(--shadow-sm)}

/* reviews */
.reviews-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column}
.review .stars{color:var(--accent);letter-spacing:2px;font-size:15px}
.review p{margin:12px 0 16px;color:var(--ink-2);font-size:15px}
.review .who{display:flex;align-items:center;gap:12px;margin-top:auto}
.review .who img{width:46px;height:46px;border-radius:50%;object-fit:cover;flex:none}
.review .who .ini{width:46px;height:46px;border-radius:50%;background:var(--navy);color:var(--accent);display:grid;place-items:center;font-weight:900;font-size:14px;flex:none}
.review .who b{font-size:14.5px;display:block}.review .who span{color:var(--muted);font-size:12.5px}
.rating-summary{display:inline-flex;align-items:center;gap:12px;padding:12px 20px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);font-weight:700}
.rating-summary .big{font-size:24px;font-weight:900}
.rating-summary .stars{color:var(--accent);letter-spacing:1px}

/* pricing */
.fees{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fee{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow-sm)}
.fee .k{font-size:13px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-ink)}
.fee h3{font-size:21px;margin:8px 0 6px}
.fee p{color:var(--muted);font-size:14.5px}

/* faq */
.faq{display:grid;gap:12px;max-width:820px;margin-inline:auto}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:4px 20px;box-shadow:var(--shadow-sm)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 0;font-weight:800;font-size:16px;cursor:pointer;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;font-weight:400;color:var(--accent-ink);transition:transform .15s ease}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{padding:0 0 18px;color:var(--muted);font-size:15px}

/* request / contact */
.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.9fr);gap:34px;align-items:start}
.contact-methods{display:grid;gap:14px}
.cm{display:flex;gap:16px;align-items:center;padding:18px 20px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}
.cm .ci{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;flex:none;color:#fff}
.cm .ci svg{width:26px;height:26px;fill:currentColor}
.cm.wa .ci{background:#25d366}.cm.tg .ci{background:#2aabee}.cm.em .ci{background:var(--navy)}
.cm b{display:block;font-size:15.5px}.cm span{color:var(--muted);font-size:13.5px}
.form-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow)}
.form-card h3{font-size:21px}
.field{display:grid;gap:6px;margin-top:14px;font-size:12.5px;font-weight:800;color:var(--ink-2)}
.field input,.field select,.field textarea{width:100%;min-height:48px;padding:0 14px;font:inherit;color:var(--ink);border:1px solid var(--line);border-radius:12px;background:#fff}
.field textarea{min-height:96px;padding:12px 14px;resize:vertical}
.reassure{margin-top:12px;display:flex;align-items:center;gap:8px;color:var(--muted);font-size:12.5px}
.reassure svg{width:16px;height:16px;fill:none;stroke:var(--ok);stroke-width:2.2}

/* footer */
.site-footer{background:var(--navy);color:rgba(255,255,255,.72);padding:54px 0 96px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:30px}
.site-footer .brand{color:#fff}
.site-footer .brand-mark{background:#fff;color:var(--navy)}
.site-footer p.about{margin-top:14px;max-width:340px;font-size:14px;color:rgba(255,255,255,.6)}
.foot-col h4{color:#fff;font-size:13px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px}
.foot-col a,.foot-col p{display:block;padding:5px 0;font-size:14px;color:rgba(255,255,255,.7)}
.foot-col a:hover{color:#fff}
.foot-bottom{margin-top:36px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.5)}
.disclaimer{margin-top:10px;font-size:11.5px;color:rgba(255,255,255,.42);max-width:780px}

/* floating contact */
.float-contact{position:fixed;right:22px;bottom:22px;z-index:80;display:grid;gap:12px}
.float-btn{position:relative;width:58px;height:58px;display:grid;place-items:center;border-radius:50%;color:#fff;border:3px solid #fff;box-shadow:0 14px 34px rgba(0,0,0,.24);transition:transform .14s ease}
.float-btn:hover{transform:translateY(-3px) scale(1.05)}
.float-btn svg{width:30px;height:30px;fill:currentColor}
.float-btn.wa{background:#25d366}.float-btn.tg{background:#2aabee}
.float-btn::after{content:"";position:absolute;inset:-7px;border-radius:50%;border:2px solid currentColor;opacity:.22;animation:ring 2.6s ease-out infinite}
.float-btn.wa::after{animation-delay:.3s}
@keyframes ring{0%{transform:scale(.8);opacity:.34}80%,100%{transform:scale(1.25);opacity:0}}

@media(max-width:980px){
  .hero .wrap{grid-template-columns:1fr;gap:30px}
  .agent-card{max-width:420px}
  .split{grid-template-columns:1fr;gap:28px}
  .master-photo{max-width:420px}
  .stat-band,.steps{grid-template-columns:repeat(2,1fr)}
  .grid-3,.reviews-grid,.proof,.fees{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .nav-main,.nav-actions .btn-ghost{display:none}
  .section{padding:48px 0}
  .grid-3,.grid-2,.reviews-grid,.proof,.fees,.stat-band,.steps,.foot-grid{grid-template-columns:1fr}
  .hero .wrap{padding:40px 0 48px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto}}

/* ============ mobile app frame: centred phone column on every screen ============ */
html{background:#e9ebee}
body{max-width:480px;margin:0 auto;background:#fff;box-shadow:0 0 0 1px rgba(16,24,38,.05),0 14px 60px rgba(16,24,38,.13);min-height:100vh;padding-bottom:64px;overflow-x:hidden}
.wrap{width:calc(100% - 28px)}
.section{padding:34px 0}
.site-header .wrap{min-height:56px}
.nav-main{display:none}
.nav-actions .btn-ghost{display:none}
.hero .wrap{grid-template-columns:1fr;gap:22px;padding:36px 0 30px}
.agent-card{max-width:none}.master-photo{max-width:none}
.stat-band{grid-template-columns:repeat(2,1fr);gap:12px}
.steps,.grid-3,.grid-2,.reviews-grid,.proof,.fees,.contact-grid,.foot-grid,.split{grid-template-columns:1fr}
.section.navy{padding:34px 0}
.hero h1{font-size:clamp(28px,8vw,36px)}
/* bottom tab bar (anchors) */
.tabbar{position:fixed;left:50%;transform:translateX(-50%);width:min(480px,100%);bottom:0;z-index:70;display:flex;background:rgba(255,255,255,.97);backdrop-filter:blur(10px);border-top:1px solid var(--line);box-shadow:0 -2px 14px rgba(0,0,0,.05)}
.tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 0 calc(7px + env(safe-area-inset-bottom,0px));color:var(--muted);font-size:10.5px;font-weight:700}
.tabbar svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.85;stroke-linecap:round;stroke-linejoin:round}
.tabbar .accent{color:var(--accent-ink)}
/* floating chat anchored to the phone column, above the tab bar */
.float-contact{right:calc(50% - min(50%,240px) + 14px);bottom:78px;gap:10px}
.float-btn{width:52px;height:52px;border-width:3px}
.float-btn svg{width:27px;height:27px}