/*
Theme Name: CUSID LAB 2.0
Theme URI: https://cusidlab.com
Author: CUSID Data Research Lab
Version: 2.0
*/

/* ── 기본 리셋 ── */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --navy:#0d1b2a;
  --navy2:#1b2a3b;
  --navy3:#16213e;
  --gold:#c9a84c;
  --gold2:#f0c040;
  --text:#e8e8f0;
  --text2:#a0b0c0;
  --border:rgba(201,168,76,0.25);
  --card:#162032;
}
html{scroll-behavior:smooth}
body{background:var(--navy);color:var(--text);font-family:"Pretendard","Noto Sans KR",sans-serif;font-size:16px;line-height:1.7}
a{color:var(--gold);text-decoration:none}
a:hover{color:var(--gold2)}
img{max-width:100%;height:auto}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* ── HEADER ── */
#site-header{background:var(--navy2);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;padding:0}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.site-logo{font-size:1.4em;font-weight:900;color:var(--gold);letter-spacing:-0.5px}
.site-logo span{color:var(--text2);font-weight:400;font-size:0.7em;margin-left:4px}
nav.main-nav ul{list-style:none;display:flex;gap:6px}
nav.main-nav a{color:var(--text2);padding:6px 12px;border-radius:6px;font-size:0.88em;transition:all 0.2s}
nav.main-nav a:hover{color:var(--gold);background:rgba(201,168,76,0.1)}
.nav-cta{background:var(--gold)!important;color:var(--navy)!important;font-weight:700!important;padding:8px 16px!important;border-radius:20px!important}
.nav-cta:hover{background:var(--gold2)!important}
.menu-toggle{display:none;background:none;border:1px solid var(--border);color:var(--text);padding:8px 12px;border-radius:6px;cursor:pointer}

/* ── HERO ── */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy3) 50%,#0a1628 100%);padding:80px 0 60px;text-align:center;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(ellipse at 60% 40%,rgba(201,168,76,0.08) 0%,transparent 60%);pointer-events:none}
.hero-badge{display:inline-block;background:rgba(201,168,76,0.15);border:1px solid var(--border);color:var(--gold);padding:4px 14px;border-radius:20px;font-size:0.8em;margin-bottom:20px;font-weight:600}
.hero h1{font-size:2.8em;font-weight:900;line-height:1.2;margin-bottom:16px;letter-spacing:-1px}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero p{color:var(--text2);font-size:1.1em;max-width:560px;margin:0 auto 32px}
.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn-primary{background:linear-gradient(135deg,var(--gold),var(--gold2));color:var(--navy);padding:14px 28px;border-radius:8px;font-weight:700;font-size:1em;border:none;cursor:pointer;transition:all 0.2s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(201,168,76,0.3);color:var(--navy)}
.btn-outline{background:transparent;color:var(--text);padding:14px 28px;border-radius:8px;font-weight:600;font-size:1em;border:1px solid var(--border);cursor:pointer;transition:all 0.2s}
.btn-outline:hover{border-color:var(--gold);color:var(--gold)}
.hero-stats{display:flex;gap:40px;justify-content:center;margin-top:48px;flex-wrap:wrap}
.stat{text-align:center}
.stat-num{font-size:1.8em;font-weight:900;color:var(--gold)}
.stat-label{font-size:0.8em;color:var(--text2)}

/* ── TOOLS GRID ── */
.section{padding:60px 0}
.section-header{text-align:center;margin-bottom:40px}
.section-header h2{font-size:1.8em;font-weight:800;margin-bottom:8px}
.section-header h2 span{color:var(--gold)}
.section-header p{color:var(--text2)}
.tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.tool-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:24px 20px;text-align:center;transition:all 0.25s;cursor:pointer}
.tool-card:hover{transform:translateY(-4px);border-color:var(--gold);box-shadow:0 12px 32px rgba(201,168,76,0.15)}
.tool-icon{font-size:2.2em;margin-bottom:12px}
.tool-name{font-size:0.95em;font-weight:700;color:var(--text);margin-bottom:4px}
.tool-desc{font-size:0.78em;color:var(--text2)}
.tool-badge{display:inline-block;background:rgba(201,168,76,0.15);color:var(--gold);font-size:0.7em;padding:2px 8px;border-radius:10px;margin-top:6px}

/* ── CATEGORIES ── */
.cats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cat-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:28px;transition:all 0.25s}
.cat-card:hover{border-color:var(--gold);transform:translateY(-2px)}
.cat-icon{font-size:2em;margin-bottom:12px}
.cat-name{font-size:1.05em;font-weight:700;color:var(--gold);margin-bottom:6px}
.cat-desc{font-size:0.85em;color:var(--text2);line-height:1.5}
.cat-count{font-size:0.75em;color:var(--text2);margin-top:10px;padding-top:10px;border-top:1px solid var(--border)}

/* ── POSTS GRID ── */
.posts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden;transition:all 0.25s}
.post-card:hover{transform:translateY(-3px);border-color:var(--gold);box-shadow:0 8px 24px rgba(0,0,0,0.3)}
.post-thumb{height:180px;background:linear-gradient(135deg,var(--navy3),#0a1628);display:flex;align-items:center;justify-content:center;font-size:3em}
.post-body{padding:20px}
.post-cat{font-size:0.75em;color:var(--gold);font-weight:600;margin-bottom:6px;text-transform:uppercase;letter-spacing:0.5px}
.post-title{font-size:0.95em;font-weight:700;color:var(--text);line-height:1.4;margin-bottom:8px}
.post-title a{color:inherit}
.post-title a:hover{color:var(--gold)}
.post-meta{font-size:0.78em;color:var(--text2)}

/* ── SIGNAL TICKER ── */
.ticker-wrap{background:var(--navy2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:10px 0;overflow:hidden}
.ticker{display:flex;gap:0;white-space:nowrap;animation:ticker 30s linear infinite}
.ticker-item{padding:0 40px;font-size:0.85em;display:flex;align-items:center;gap:8px}
.ticker-name{color:var(--text2)}
.ticker-up{color:#4cde80}
.ticker-dn{color:#ff6060}
@keyframes ticker{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ── SINGLE POST ── */
.post-content-wrap{max-width:760px;margin:40px auto;padding:0 20px}
.post-header{margin-bottom:32px}
.entry-category{font-size:0.8em;color:var(--gold);font-weight:600;margin-bottom:10px}
.entry-title{font-size:2em;font-weight:800;line-height:1.3;margin-bottom:12px}
.entry-meta{font-size:0.85em;color:var(--text2);padding-bottom:20px;border-bottom:1px solid var(--border)}
.entry-content{line-height:1.9;color:var(--text)}
.entry-content h2{color:var(--gold);font-size:1.3em;margin:32px 0 12px;padding-left:12px;border-left:3px solid var(--gold)}
.entry-content h3{color:var(--gold2);font-size:1.1em;margin:24px 0 8px}
.entry-content p{margin-bottom:16px}
.entry-content ul,ol{margin:12px 0 12px 24px}
.entry-content li{margin-bottom:6px}
.entry-content strong{color:var(--gold2)}
.entry-content blockquote{background:rgba(201,168,76,0.08);border-left:4px solid var(--gold);padding:16px 20px;margin:20px 0;border-radius:0 8px 8px 0}

/* ── SIDEBAR ── */
.content-sidebar{display:grid;grid-template-columns:1fr 300px;gap:32px;align-items:start}
.widget{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;margin-bottom:20px}
.widget-title{color:var(--gold);font-size:0.95em;font-weight:700;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--border)}

/* ── FOOTER ── */
#site-footer{background:var(--navy2);border-top:1px solid var(--border);padding:48px 0 24px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px}
.footer-brand .logo{font-size:1.3em;font-weight:900;color:var(--gold);margin-bottom:12px}
.footer-brand p{font-size:0.85em;color:var(--text2);line-height:1.6}
.footer-col h4{color:var(--text);font-size:0.9em;font-weight:700;margin-bottom:12px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:6px}
.footer-col a{color:var(--text2);font-size:0.85em}
.footer-col a:hover{color:var(--gold)}
.footer-bottom{border-top:1px solid var(--border);padding-top:20px;display:flex;justify-content:space-between;align-items:center;font-size:0.8em;color:var(--text2)}
.footer-links{display:flex;gap:16px}

/* ── RESPONSIVE ── */
@media(max-width:768px){
  .hero h1{font-size:1.8em}
  .tools-grid{grid-template-columns:repeat(2,1fr)}
  .cats-grid{grid-template-columns:1fr 1fr}
  .posts-grid{grid-template-columns:1fr}
  .content-sidebar{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  nav.main-nav{display:none}
  .menu-toggle{display:block}
  .header-inner{flex-wrap:wrap}
}
@media(max-width:480px){
  .tools-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .cats-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-stats{gap:20px}
}