/*
Theme Name: ImplantCost Premium
Theme URI: https://implantcost.uassuk.com
Description: 임플란트 비용 비교정보 전용 프리미엄 테마 — 메인 html.php와 동일한 디자인 시스템
Version: 1.0.0
Author: TION
Text Domain: implantcost
*/

/* ===================== Design Tokens ===================== */
:root{
  --c-primary:#0E7C72;
  --c-primary-dark:#0B6159;
  --c-primary-soft:#E2F1EE;
  --c-navy:#0B2538;
  --c-navy-soft:#16324A;
  --c-accent:#C2924A;
  --c-bg:#F7F5F0;
  --c-surface:#FFFFFF;
  --c-border:#E6E1D6;
  --c-text:#23303B;
  --c-text-soft:#5C6B78;
  --c-text-faint:#8A97A3;
  --c-danger:#B4543B;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:24px;
  --shadow-sm:0 1px 3px rgba(11,37,56,.06),0 1px 2px rgba(11,37,56,.04);
  --shadow-md:0 12px 32px rgba(11,37,56,.10);
  --shadow-lg:0 24px 60px rgba(11,37,56,.14);
  --font-sans:'Pretendard Variable',Pretendard,'Pretendard JP','Noto Sans KR','Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  --font-serif:'Noto Serif KR','Nanum Myeongjo',serif;
  --container:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ===================== Base ===================== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.7;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--c-navy);line-height:1.35;letter-spacing:-.01em;margin:0 0 .5em}
p{margin:0 0 1.1em}
.skip-link{
  position:absolute;left:-999px;top:0;background:var(--c-navy);color:#fff;padding:12px 20px;z-index:9999;border-radius:0 0 12px 0;
}
.skip-link:focus{left:0;color:#fff}
:focus-visible{outline:3px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
@media(max-width:900px){.section{padding:64px 0}}

/* ===================== Buttons ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:0;cursor:pointer;
  font-family:var(--font-sans);font-size:15px;font-weight:600;line-height:1.4;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
  min-height:48px;text-align:center;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(14,124,114,.28)}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(14,124,114,.34)}
.btn-outline{background:transparent;color:var(--c-navy);border:1.5px solid var(--c-border)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--c-navy)}
.btn-light:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-2px)}
.btn-sm{padding:8px 18px;min-height:40px;font-size:14px}

/* ===================== Header ===================== */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.92);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-border);
}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.brand{display:inline-flex;align-items:center;gap:11px;font-family:var(--font-serif);font-weight:700;font-size:19px;color:var(--c-navy);letter-spacing:-.01em}
.brand:hover{color:var(--c-navy)}
.brand__mark{
  width:40px;height:40px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--c-primary) 0%,var(--c-navy) 130%);
  display:flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 6px 14px rgba(14,124,114,.3);
}
.brand__mark svg{width:22px;height:22px}
.main-nav{display:flex;align-items:center;gap:4px}
.main-nav a{
  padding:9px 14px;border-radius:999px;font-size:15px;font-weight:500;color:var(--c-text);
}
.main-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary-dark)}
.nav-toggle{
  display:none;background:none;border:0;padding:10px;border-radius:10px;cursor:pointer;min-width:44px;min-height:44px;
}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--c-navy);margin:5px auto;border-radius:2px;transition:transform .2s var(--ease),opacity .2s}
@media(max-width:1024px){
  .nav-toggle{display:block}
  .main-nav{
    position:fixed;inset:72px 0 auto 0;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;padding:16px 24px 24px;border-bottom:1px solid var(--c-border);
    box-shadow:var(--shadow-md);transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .22s var(--ease),transform .22s var(--ease);
  }
  .main-nav.open{opacity:1;transform:none;pointer-events:auto}
  .main-nav a{padding:14px 12px;border-radius:12px;font-size:16px}
}
@media(max-width:560px){.brand{font-size:16px}.brand__mark{width:36px;height:36px}}

/* ===================== Footer ===================== */
.site-footer{background:var(--c-navy);color:#C9D4DE;padding:72px 0 0;font-size:14.5px}
.site-footer a{color:#DCE6EE}
.site-footer a:hover{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px;padding-bottom:48px}
.footer-brand{font-family:var(--font-serif);font-size:19px;font-weight:700;color:#fff;display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-col h4{color:#fff;font-family:var(--font-sans);font-size:15px;font-weight:700;margin:0 0 14px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.legal-notice{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  font-size:12.5px;line-height:1.7;color:#A7B4BF;max-width:900px;
}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;color:#93A3B0;font-size:13px}
.footer-bottom-links{display:flex;gap:20px;flex-wrap:wrap}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr;gap:36px}}

/* ===================== Article / Post ===================== */
.article-wrap{background:#fff}
.article-hero{position:relative;padding:64px 0 56px;background:linear-gradient(180deg,var(--c-primary-soft),transparent 70%)}
.article-hero .kicker{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:700;color:var(--c-primary-dark);background:#fff;border:1px solid var(--c-border);padding:6px 14px;border-radius:999px;margin-bottom:18px}
.article-hero h1{font-size:clamp(30px,4.6vw,46px);margin-bottom:14px}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 20px;color:var(--c-text-soft);font-size:14px}
.article-meta .dot{opacity:.4}
.article-body{max-width:800px;margin:0 auto;padding:8px 24px 0}
.article-body p{font-size:16.5px;line-height:1.85;color:#333F4B}
.article-body h2{font-size:26px;margin:52px 0 18px;padding-top:8px}
.article-body h3{font-size:20px;margin:36px 0 12px}
.article-body h2:first-child{margin-top:16px}
.article-body .lead{font-size:17.5px;line-height:1.9;color:var(--c-text-soft)}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary-dark)}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.35em;display:grid;gap:8px}
.article-body li::marker{color:var(--c-primary)}
.article-body blockquote{
  margin:2em 0;padding:20px 24px;border-left:4px solid var(--c-primary);
  background:var(--c-primary-soft);border-radius:0 14px 14px 0;color:var(--c-navy);
}
.article-body blockquote p{margin:0;font-size:16px}
.article-body img{border-radius:var(--radius-md);margin:1.6em auto;box-shadow:var(--shadow-md)}
.article-hero-img{max-width:960px;margin:28px auto 0;padding:0 24px}
.article-hero-img img{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);aspect-ratio:16/7;object-fit:cover}
.article-footer{max-width:800px;margin:0 auto;padding:24px 24px 40px}

/* 요약 박스 */
.summary-box{
  background:linear-gradient(135deg,#F3FAF8,#EAF4F1);border:1px solid #CDE5DF;
  border-radius:var(--radius-md);padding:24px 26px;margin:0 0 28px;
}
.summary-box h2{font-size:17px;font-family:var(--font-sans);font-weight:700;color:var(--c-primary-dark);margin:0 0 10px}
.summary-box ul{margin:0;padding-left:1.1em;display:grid;gap:8px;color:#2E4A44}
.summary-box li::marker{color:var(--c-primary)}

/* 목차 */
.toc{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius-md);
  padding:22px 26px;margin:0 0 34px;box-shadow:var(--shadow-sm);
}
.toc-title{font-size:15px;font-weight:800;color:var(--c-navy);margin:0 0 12px;display:flex;align-items:center;gap:8px}
.toc ol{margin:0;padding-left:1.3em;display:grid;gap:7px;font-size:15px}
.toc a{color:var(--c-text);text-decoration:none}
.toc a:hover{color:var(--c-primary-dark)}

/* 표 */
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:1.8em 0;font-size:14.5px;border:1px solid var(--c-border);border-radius:14px;overflow:hidden;box-shadow:var(--shadow-sm)}
.article-body table th{background:var(--c-navy);color:#fff;text-align:left;padding:13px 16px;font-weight:600;font-size:14px}
.article-body table td{padding:13px 16px;border-top:1px solid var(--c-border);vertical-align:top;color:#3A4651}
.article-body table tr:nth-child(even) td{background:#FAF9F6}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:1.8em 0}
.table-scroll table{margin:0}

/* 인라인 CSS 차트 */
.chart{margin:2em 0;display:grid;gap:14px}
.chart-item{display:grid;grid-template-columns:112px 1fr;gap:14px;align-items:center}
.chart-item .chart-label{font-size:13.5px;font-weight:600;color:var(--c-text-soft);text-align:right}
.chart-track{background:#EEEAE2;border-radius:999px;height:26px;position:relative;overflow:hidden}
.chart-fill{
  height:100%;border-radius:999px;background:linear-gradient(90deg,var(--c-primary),#37A89C);
  display:flex;align-items:center;justify-content:flex-end;padding-right:12px;
  color:#fff;font-size:12.5px;font-weight:700;min-width:56px;transition:width 1s var(--ease);
}
.chart-note{font-size:13px;color:var(--c-text-faint);margin-top:6px}
@media(max-width:600px){.chart-item{grid-template-columns:1fr;gap:6px}.chart-item .chart-label{text-align:left}}

/* 콜아웃 */
.callout{
  border-radius:var(--radius-md);padding:22px 24px;margin:2em 0;font-size:15.5px;
  background:#FFF9EE;border:1px solid #F0DFC0;color:#5C4A26;
}
.callout strong{color:#8A6A2E}
.callout-info{background:var(--c-primary-soft);border:1px solid #C9E3DD;color:#1F4A43}
.callout-warn{background:#FBEFEA;border:1px solid #EDCFC3;color:#6E3A28}

/* ai/legal notices */
.legal-notice{font-size:13px;color:#6B7884;background:#F4F6F8;border-left:3px solid #CBD5E1;padding:14px 18px;margin:2.4em 0 1em;border-radius:0 10px 10px 0;line-height:1.75}
.legal-notice p{margin:6px 0}
.ai-notice{font-size:13px;color:#9AA5AF;margin:1.6em 0 0;text-align:center}

/* 관련 글 */
.related-posts{margin:3em 0 0}
.related-posts h3{font-size:20px;margin-bottom:18px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.related-card{display:block;background:#fff;border:1px solid var(--c-border);border-radius:var(--radius-md);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);color:inherit}
.related-card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.related-card .rc-body{padding:16px 18px}
.related-card .rc-cat{font-size:12px;font-weight:700;color:var(--c-primary-dark)}
.related-card .rc-title{font-size:15.5px;font-weight:700;color:var(--c-navy);margin:6px 0 0;font-family:var(--font-sans);line-height:1.5}
@media(max-width:800px){.related-grid{grid-template-columns:1fr}}

/* 페이지 */
.page-wrap{background:#fff;min-height:50vh}
.page-hero{padding:64px 0 36px;background:linear-gradient(180deg,var(--c-primary-soft),transparent 70%)}
.page-hero h1{font-size:clamp(28px,4vw,40px)}
.page-content{max-width:800px;margin:0 auto;padding:8px 24px 64px}
.page-content h2{font-size:24px;margin:44px 0 16px}
.page-content p{line-height:1.85}
.page-content ul{padding-left:1.3em;display:grid;gap:8px}

/* 404 */
.error-wrap{text-align:center;padding:120px 24px}
.error-wrap h1{font-size:42px}

/* 스크롤 등장 */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}}