/* KoreaGenie 리뉴얼 — MD3 공통 컴포넌트
 * 의존: md3-tokens.css (먼저 로드). [P0-2]
 * 기준: docs/design 확정 시안 공통 chrome.
 */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--md-font);background:var(--md-surface);color:var(--md-on-surface);line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.material-symbols-rounded{font-family:'Material Symbols Rounded';font-weight:normal;font-style:normal;font-size:24px;line-height:1;vertical-align:middle;-webkit-font-feature-settings:'liga';user-select:none}
img{max-width:100%;height:auto;object-fit:cover;display:block}
a{text-decoration:none;color:inherit}
button{font-family:inherit;cursor:pointer;border:none;background:none}
:focus-visible{outline:3px solid var(--md-primary);outline-offset:2px;border-radius:4px}
.wrap{max-width:var(--wrap-max);margin:0 auto;padding:0 24px}

/* state layer */
.state{position:relative;overflow:hidden;isolation:isolate}
.state::after{content:"";position:absolute;inset:0;background:currentColor;opacity:0;transition:opacity .15s ease;z-index:-1;border-radius:inherit}
.state:hover::after{opacity:.08}
.state:active::after{opacity:.12}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 22px;border-radius:var(--r-sm);font-size:.95rem;font-weight:600;transition:box-shadow .15s ease,background .15s ease}
.btn-filled{background:var(--md-primary);color:var(--md-on-primary)}
.btn-filled:hover{box-shadow:var(--elev-2)}
.btn-tonal{background:var(--md-secondary-container);color:var(--md-on-secondary-container)}
.btn-outlined{background:var(--md-surface-container-lowest);color:var(--md-primary);border:1px solid var(--md-outline-variant)}
.btn-text{background:transparent;color:var(--md-primary);padding:12px}
.btn-block{width:100%}
.btn .material-symbols-rounded{font-size:20px}
.btn.disabled{opacity:.55;pointer-events:none}

/* chips */
.chip{display:inline-flex;align-items:center;gap:6px;min-height:36px;padding:8px 16px;border-radius:var(--r-full);border:1px solid var(--md-outline-variant);background:transparent;color:var(--md-on-surface);font-size:.88rem;font-weight:500}
.chip.sel{background:var(--md-primary-container);color:var(--md-on-primary-container);border-color:transparent}
.chip .material-symbols-rounded{font-size:18px}

/* top app bar */
.appbar{position:sticky;top:0;z-index:100;background:var(--md-surface-container-lowest);border-bottom:1px solid var(--md-outline-variant)}
.appbar-inner{display:flex;align-items:center;gap:24px;height:var(--appbar-h);max-width:var(--wrap-max);margin:0 auto;padding:0 24px}
.back-btn{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;color:var(--md-on-surface)}
.logo img{height:36px;width:auto;object-fit:contain}
.nav{display:flex;align-items:center;gap:4px;flex:1}
.navlink{display:inline-flex;align-items:center;gap:6px;padding:10px 14px;border-radius:var(--r-sm);color:var(--md-on-surface);font-size:.95rem;font-weight:600}
.navlink.active{background:var(--md-secondary-container);color:var(--md-on-secondary-container)}
.navlink .material-symbols-rounded{font-size:18px}
/* i18n 메뉴 라벨이 전부 대문자(DELIVERY 등)로 저장돼 있어 시안의 타이틀케이스로 표시 */
.navlink span:not(.material-symbols-rounded){text-transform:lowercase}
.navlink span:not(.material-symbols-rounded)::first-letter{text-transform:uppercase}
.has-menu{position:relative}
.menu{position:absolute;top:calc(100% + 8px);inset-inline-start:0;min-width:240px;background:var(--md-surface-container-high);border-radius:var(--r-sm);box-shadow:var(--elev-3);padding:8px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:.2s ease;z-index:120}
.has-menu:hover .menu,.has-menu:focus-within .menu{opacity:1;visibility:visible;transform:translateY(0)}
.menu a{display:flex;align-items:center;gap:12px;padding:12px;border-radius:var(--r-sm);color:var(--md-on-surface);font-size:.9rem}
.menu a .material-symbols-rounded{font-size:20px;color:var(--md-primary)}
.utils{display:flex;align-items:center;gap:8px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;min-width:44px;padding:0 14px;border-radius:var(--r-full);color:var(--md-on-surface-variant);font-size:.9rem;font-weight:500}
.icon-btn .material-symbols-rounded{font-size:20px}

/* language panel */
.lang-wrap{position:relative}
.lang-panel{position:absolute;top:calc(100% + 10px);inset-inline-end:0;width:min(440px,calc(100vw - 32px));background:var(--md-surface-container-high);border-radius:var(--r-md);box-shadow:var(--elev-3);padding:16px;display:none;z-index:200}
.lang-panel.open{display:block}
.lang-panel h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.6px;color:var(--md-on-surface-variant);margin-bottom:12px}
.lang-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.lang-grid a{padding:10px 12px;border-radius:var(--r-sm);font-size:.88rem;color:var(--md-on-surface);min-height:44px;display:flex;align-items:center}
.lang-grid a:hover{background:var(--md-secondary-container)}

/* cards / fields */
.card{background:var(--md-surface-container-lowest);border:1px solid var(--md-outline-variant);border-radius:var(--r-md);padding:22px 22px 24px}
.card-h{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.card-h .material-symbols-rounded{font-size:22px;color:var(--md-primary)}
.card-h h2{font-size:1.15rem;font-weight:500}
.field{position:relative;margin-bottom:16px}
.field:last-child{margin-bottom:0}
.field input,.field textarea,.field select{width:100%;min-height:56px;padding:18px 16px 6px;border:1px solid var(--md-outline);border-radius:var(--r-sm);background:transparent;font-family:inherit;font-size:1rem;color:var(--md-on-surface)}
.field textarea{min-height:84px;padding-top:22px;resize:vertical}
.field label{position:absolute;inset-inline-start:13px;top:16px;padding:0 4px;background:var(--md-surface-container);color:var(--md-on-surface-variant);font-size:1rem;pointer-events:none;transition:.15s ease}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border:2px solid var(--md-primary);padding-inline-start:15px}
.field input:focus+label,.field input:not(:placeholder-shown)+label,.field textarea:focus+label,.field textarea:not(:placeholder-shown)+label,.field select:focus+label,.field.filled label{top:-8px;font-size:.75rem;color:var(--md-primary)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* quantity stepper */
.stepper{display:inline-flex;align-items:center;gap:4px;border:1px solid var(--md-outline);border-radius:var(--r-full);padding:3px}
.stepper button{width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:var(--md-primary);background:var(--md-primary-container)}
.stepper button:disabled{opacity:.4;cursor:not-allowed;background:var(--md-surface-container-high);color:var(--md-on-surface-variant)}
.stepper .material-symbols-rounded{font-size:20px}
.stepper .qty{min-width:32px;text-align:center;font-weight:600}

/* mobile nav bar */
.navbar-m{display:none;position:fixed;bottom:0;left:0;right:0;z-index:1002;background:var(--md-surface-container-lowest);border-top:1px solid var(--md-outline-variant);padding:8px 0 10px}
.navbar-m ul{display:flex;justify-content:space-around;list-style:none}
.navbar-m a,.navbar-m .svc-launcher{display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--md-on-surface-variant);font-size:.7rem;font-weight:500;min-width:56px;min-height:44px;background:none}
.navbar-m .ind{display:flex;align-items:center;justify-content:center;width:56px;height:32px;border-radius:var(--r-full);transition:background .2s ease}
.navbar-m a.active .ind{background:var(--md-secondary-container)}
.navbar-m a.active,.navbar-m a.active .material-symbols-rounded{color:var(--md-on-secondary-container)}
.navbar-m .material-symbols-rounded{font-size:24px}
.navbar-m .launch{width:48px;height:48px;border-radius:50%;background:var(--md-primary);color:var(--md-on-primary);box-shadow:var(--elev-2);margin-top:-14px}
.navbar-m .launch .material-symbols-rounded{color:var(--md-on-primary)}

/* All-services bottom sheet */
.service-sheet{position:fixed;left:0;right:0;bottom:var(--navbar-h);z-index:1001;background:var(--md-surface-container);transform:translateY(110%);transition:transform .25s ease;border-radius:28px 28px 0 0;padding:8px 16px 16px;max-height:calc(80vh - var(--navbar-h));overflow:auto}
.service-sheet.open{transform:translateY(0)}
.sheet-scrim{position:fixed;top:0;left:0;right:0;bottom:var(--navbar-h);background:var(--md-scrim);z-index:1000}
.sheet-grab{width:32px;height:4px;border-radius:2px;background:var(--md-outline-variant);margin:8px auto 12px}
.sheet-title{font-size:1.1rem;font-weight:500;margin:0 4px 14px;color:var(--md-on-surface)}
.sheet-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;padding-bottom:8px}
.sheet-grid a{position:relative;overflow:hidden;display:flex;align-items:center;gap:12px;padding:16px;border-radius:var(--r-md);background:var(--md-surface-container-high);color:var(--md-on-surface);font-size:.95rem;font-weight:500;min-height:56px;transition:background .15s ease}
.sheet-grid a .material-symbols-rounded{font-size:24px;color:var(--md-primary)}
.sheet-grid a:hover,.sheet-grid a:focus-visible{background:var(--md-secondary-container);color:var(--md-on-secondary-container)}
@media(min-width:641px){.service-sheet,.sheet-scrim{display:none!important}}
@media(prefers-reduced-motion:reduce){.service-sheet{transition:none}}
.sheet-scrim[hidden],.service-sheet[hidden]{display:none!important}

/* footer */
.footer{background:var(--md-inverse-surface);color:var(--md-inverse-on-surface);padding:48px 0 40px;border-top:0;margin-top:40px}
.footer-top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;margin-bottom:24px}
.footer-top .logo{background:#FFFFFF;border-radius:var(--r-sm);padding:6px 10px}
.footer-top .logo img{height:32px}
.footer-policy{display:flex;gap:24px;flex-wrap:wrap;align-items:center}
.footer-policy a{display:inline-flex;align-items:center;min-height:44px;font-size:.85rem;color:var(--md-inverse-on-surface)}
.footer-policy a:hover{color:#FFFFFF}
.footer-info{font-size:.82rem;line-height:1.9;color:var(--md-inverse-on-surface);opacity:.78}
.footer-info>span{display:block}

/* ===== responsive ([P0-4] breakpoints: 1440 / ≤900 / ≤640) ===== */
@media(max-width:640px){
  .wrap{padding:0 16px}
  .nav,.utils .desk{display:none}
  .navbar-m{display:block}
  body{padding-bottom:var(--navbar-h)}
  .appbar-inner{height:60px;gap:12px;position:relative;justify-content:center}
  .appbar-inner .logo{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}
  .appbar-inner .utils{position:absolute;inset-inline-end:0;top:50%;transform:translateY(-50%)}
  .appbar-inner .back-btn{position:absolute;inset-inline-start:0;top:50%;transform:translateY(-50%)}
  .lang-panel{position:fixed;top:68px;inset-inline-end:8px;inset-inline-start:auto;width:min(360px,calc(100vw - 16px));max-height:calc(100vh - 100px);overflow:auto}
  .lang-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{flex-direction:column;align-items:flex-start}
  .field-row{grid-template-columns:1fr}
}

/* ===== [P0-4] 반응형 브레이크포인트 규약 =====
   desktop  ≥1441 : --wrap-max(1200) 기준 레이아웃
   tablet   ≤900  : 2단 → 1단/축소, 사이드 sticky 해제, 그리드 컬럼 감소
   mobile   ≤640  : 단일 컬럼, 하단 navbar-m 노출, appbar 60px, 좌우 패딩 16px
   모든 페이지 CSS는 이 3단을 기준으로 작성한다. */
@media(max-width:900px){ .wrap{padding:0 20px} }