/*
Theme Name: Neurodyne
Theme URI: https://neurodyne.ai
Author: Neurodyne
Author URI: https://neurodyne.ai
Description: Neurodyne 커스텀 테마 — Advanced Robotics & AI. Next.js 디자인을 이식한 가벼운 커스텀 테마.
Version: 0.3.3
Requires at least: 6.4
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: neurodyne
*/

/* Self-hosted brand font (Syncopate) — no external CDN dependency. */
@font-face{font-family:'Syncopate';font-style:normal;font-weight:400;font-display:swap;src:url('assets/fonts/syncopate-400.woff2') format('woff2');}
@font-face{font-family:'Syncopate';font-style:normal;font-weight:700;font-display:swap;src:url('assets/fonts/syncopate-700.woff2') format('woff2');}

:root{
  --background:#080808;
  --surface:#111111;
  --surface-2:#1a1a1a;
  --border:#222222;
  --accent:#3b82f6;
  --accent-hover:#2563eb;
  --text-primary:#f5f5f5;
  --text-secondary:#888888;
  --container:1200px;
  --font-sans:'Geist',-apple-system,BlinkMacSystemFont,'Segoe UI','Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  --font-brand:'Syncopate',var(--font-sans);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--background);
  color:var(--text-primary);
  font-family:var(--font-sans);
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
}
a{color:inherit;}
img{max-width:100%;height:auto;}
::selection{background-color:var(--accent);color:#fff;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;border-bottom:1px solid var(--border);background-color:rgba(8,8,8,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);}
.site-header__inner{max-width:var(--container);margin:0 auto;padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;}
.brand{font-family:var(--font-brand);font-size:18px;font-weight:700;letter-spacing:0.05em;text-transform:uppercase;color:var(--text-primary);text-decoration:none;}
.custom-logo-link{display:flex;align-items:center;}
.custom-logo{display:block;max-height:40px;width:auto;}
ul.nav{list-style:none;margin:0;padding:0;display:flex;gap:32px;align-items:center;}
ul.nav li{margin:0;}
ul.nav a{color:var(--text-secondary);text-decoration:none;font-size:14px;font-weight:500;transition:color .2s;}
ul.nav a:hover,ul.nav .current-menu-item>a,ul.nav .current_page_item>a{color:var(--text-primary);}
.menu-toggle{display:none;background:none;border:none;color:var(--text-primary);cursor:pointer;padding:4px;}

@media (max-width:768px){
  ul.nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;align-items:stretch;background-color:var(--surface);border-top:1px solid var(--border);padding:8px 24px 16px;}
  .site-header.is-open ul.nav{display:flex;}
  ul.nav a{display:block;padding:12px 0;font-size:16px;border-bottom:1px solid var(--border);}
  .menu-toggle{display:block;}
}

/* ---------- Naver smart store button (nav) ---------- */
ul.nav li.menu-shop > a{background:#03C75A;color:#fff;border-radius:6px;padding:6px 13px;font-size:13px;font-weight:700;display:inline-flex;align-items:center;gap:6px;}
ul.nav li.menu-shop > a:hover{background:#02b350;color:#fff;}
ul.nav li.menu-shop > a::before{content:"N";display:inline-flex;align-items:center;justify-content:center;width:15px;height:15px;background:#fff;color:#03C75A;border-radius:3px;font-weight:800;font-size:10px;line-height:1;}
@media (max-width:768px){
  ul.nav li.menu-shop > a{border-bottom:none;margin-top:8px;width:max-content;}
}

/* ---------- Buttons ---------- */
.btn{display:inline-block;background-color:var(--accent);color:#fff;padding:14px 40px;border-radius:8px;text-decoration:none;font-size:15px;font-weight:600;border:none;cursor:pointer;transition:background-color .2s,opacity .2s;}
.btn:hover{background-color:var(--accent-hover);}
.btn[disabled]{opacity:.7;cursor:not-allowed;}

/* ---------- Shared ---------- */
.eyebrow{color:var(--accent);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:0.1em;margin:0 0 16px;}
.section{padding:80px 24px;max-width:var(--container);margin:0 auto;}
.stack{display:flex;flex-direction:column;gap:24px;}

/* Subpage hero */
.page-hero{padding:140px 24px 80px;max-width:var(--container);margin:0 auto;}
.page-hero h1{font-size:clamp(36px,6vw,64px);font-weight:800;letter-spacing:-0.03em;line-height:1.1;margin:0 0 24px;}
.page-hero .lead{color:var(--text-secondary);font-size:18px;line-height:1.7;margin:0;}

/* ---------- Home hero ---------- */
.hero{position:relative;overflow:hidden;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:120px 24px 80px;text-align:center;}
.hero__grid{position:absolute;inset:0;background-image:linear-gradient(rgba(59,130,246,0.03) 1px,transparent 1px),linear-gradient(90deg,rgba(59,130,246,0.03) 1px,transparent 1px);background-size:60px 60px;-webkit-mask-image:radial-gradient(ellipse 80% 80% at 50% 50%,#000 40%,transparent 100%);mask-image:radial-gradient(ellipse 80% 80% at 50% 50%,#000 40%,transparent 100%);}
.hero__glow{position:absolute;top:30%;left:50%;transform:translate(-50%,-50%);width:600px;height:600px;border-radius:50%;background:radial-gradient(circle,rgba(59,130,246,0.08) 0%,transparent 70%);pointer-events:none;}
.hero__inner{position:relative;max-width:800px;}
.badge{display:inline-flex;align-items:center;gap:8px;background-color:rgba(59,130,246,0.1);border:1px solid rgba(59,130,246,0.2);border-radius:100px;padding:6px 16px;margin-bottom:32px;}
.badge__dot{width:6px;height:6px;border-radius:50%;background-color:var(--accent);display:inline-block;animation:pulse 2s infinite;}
.badge__label{color:var(--accent);font-size:13px;font-weight:500;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.4;}}
.hero h1{font-size:clamp(40px,7vw,72px);font-weight:800;line-height:1.1;letter-spacing:-0.03em;margin:0 0 24px;}
.grad{background:linear-gradient(135deg,#3b82f6,#60a5fa);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}
.hero__sub{font-size:18px;color:var(--text-secondary);line-height:1.7;max-width:600px;margin:0 auto;}

/* About */
.about__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:48px;align-items:center;}
.about h2{font-size:clamp(28px,4vw,42px);font-weight:700;line-height:1.2;letter-spacing:-0.02em;margin:0 0 24px;}
.about .body{color:var(--text-secondary);line-height:1.8;font-size:15px;margin:0;}
.cards{display:flex;flex-direction:column;gap:16px;}
.feature-card{background-color:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px;display:flex;gap:16px;align-items:flex-start;}
.feature-card .ic{font-size:24px;line-height:1;}
.feature-card .t{font-weight:600;margin:0 0 6px;font-size:15px;}
.feature-card .d{color:var(--text-secondary);font-size:13px;line-height:1.6;margin:0;}

/* CTA */
.cta-wrap{padding:40px 24px 80px;max-width:var(--container);margin:0 auto;}
.cta{background:linear-gradient(135deg,rgba(59,130,246,0.1),rgba(96,165,250,0.05));border:1px solid rgba(59,130,246,0.2);border-radius:16px;padding:56px 40px;text-align:center;}
.cta h2{font-size:clamp(24px,3vw,36px);font-weight:700;margin:0 0 16px;}
.cta p{color:var(--text-secondary);margin:0 0 32px;font-size:15px;}

/* Panel (AI) */
.panel{background-color:var(--surface);border:1px solid var(--border);border-radius:16px;padding:32px;margin-bottom:24px;}
.pill{display:inline-block;background-color:rgba(59,130,246,0.1);border:1px solid rgba(59,130,246,0.2);color:var(--accent);font-size:12px;font-weight:600;padding:4px 12px;border-radius:100px;margin-bottom:20px;letter-spacing:0.05em;}
.panel h2{font-size:22px;font-weight:700;margin:0 0 32px;letter-spacing:-0.01em;}
.subgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;}
.subcard{background-color:var(--surface-2);border:1px solid var(--border);border-radius:12px;padding:28px;}
.subcard .ic{font-size:32px;display:block;margin-bottom:16px;line-height:1;}
.subcard h3{font-size:17px;font-weight:700;margin:0 0 12px;line-height:1.4;white-space:pre-line;}
.subcard p{color:var(--text-secondary);font-size:14px;line-height:1.7;margin:0;}
.placeholder{background-color:var(--surface);border:1px solid var(--border);border-radius:16px;padding:40px;text-align:center;}
.placeholder .k{color:var(--text-secondary);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:0.1em;margin:0 0 12px;}
.placeholder h3{font-size:20px;font-weight:700;color:var(--text-secondary);margin:0;}

/* Robotics projects */
.project{background-color:var(--surface);border:1px solid var(--border);border-radius:16px;padding:40px;display:grid;grid-template-columns:auto 1fr;gap:32px;align-items:flex-start;}
.project__num{font-size:48px;font-weight:800;color:rgba(59,130,246,0.15);line-height:1;font-variant-numeric:tabular-nums;min-width:64px;}
.project__head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.project__head .ic{font-size:28px;line-height:1;}
.project__head h2{font-size:22px;font-weight:700;letter-spacing:-0.01em;margin:0;}
.project .sub{color:var(--accent);font-size:14px;font-weight:500;margin:0 0 16px;}
.project .desc{color:var(--text-secondary);font-size:15px;line-height:1.8;margin:0 0 24px;}
.tags{display:flex;gap:8px;flex-wrap:wrap;}
.tag{background-color:var(--surface-2);border:1px solid var(--border);color:var(--text-secondary);font-size:12px;font-weight:500;padding:4px 12px;border-radius:100px;}
@media (max-width:600px){.project{grid-template-columns:1fr;gap:16px;}}

/* ---------- Notices ---------- */
.notice-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;}
.notice-item{display:block;background-color:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px 28px;text-decoration:none;transition:border-color .2s;}
.notice-item:hover{border-color:var(--accent);}
.notice-item__top{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap;}
.notice-pin{background-color:rgba(59,130,246,0.12);border:1px solid rgba(59,130,246,0.25);color:var(--accent);font-size:11px;font-weight:700;padding:2px 10px;border-radius:100px;letter-spacing:0.04em;}
.notice-cat{color:var(--accent);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:0.08em;}
.notice-date{color:var(--text-secondary);font-size:13px;margin-left:auto;font-variant-numeric:tabular-nums;}
.notice-item__title{font-size:18px;font-weight:700;color:var(--text-primary);margin:0 0 8px;letter-spacing:-0.01em;}
.notice-item__excerpt{color:var(--text-secondary);font-size:14px;line-height:1.7;margin:0;}
.notice-empty{color:var(--text-secondary);text-align:center;padding:60px 0;}

.notice-single{max-width:820px;margin:0 auto;padding:140px 24px 80px;}
.notice-single__meta{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap;}
.notice-single h1{font-size:clamp(28px,4.5vw,44px);font-weight:800;letter-spacing:-0.02em;line-height:1.2;margin:0 0 32px;}
.prose{color:var(--text-secondary);font-size:16px;line-height:1.9;}
.prose h2{color:var(--text-primary);font-size:24px;margin:2em 0 .6em;}
.prose h3{color:var(--text-primary);font-size:20px;margin:1.6em 0 .5em;}
.prose p{margin:0 0 1.2em;}
.prose a{color:var(--accent);}
.prose ul,.prose ol{padding-left:1.4em;margin:0 0 1.2em;}
.prose img{border-radius:12px;}
.back-link{display:inline-block;margin-top:48px;color:var(--text-secondary);text-decoration:none;font-size:14px;}
.back-link:hover{color:var(--text-primary);}

.pagination{display:flex;gap:8px;justify-content:center;margin-top:40px;flex-wrap:wrap;}
.pagination .page-numbers{padding:8px 14px;border:1px solid var(--border);border-radius:8px;color:var(--text-secondary);text-decoration:none;font-size:14px;}
.pagination .page-numbers.current{background-color:var(--accent);color:#fff;border-color:var(--accent);}

/* ---------- Contact ---------- */
.contact-wrap{padding:0 24px 80px;max-width:960px;margin:0 auto;}
.contact-card{background-color:var(--surface);border:1px solid var(--border);border-radius:16px;padding:40px;display:flex;flex-direction:column;gap:24px;}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:8px;text-transform:uppercase;letter-spacing:0.05em;}
.field input,.field textarea{width:100%;background-color:var(--surface);border:1px solid var(--border);border-radius:8px;padding:12px 16px;color:var(--text-primary);font-size:15px;font-family:inherit;outline:none;transition:border-color .2s;}
.field input:focus,.field textarea:focus{border-color:var(--accent);}
.field textarea{resize:vertical;line-height:1.7;}
.alert{border-radius:12px;padding:16px 20px;font-size:14px;margin:0;}
.alert--ok{background-color:rgba(34,197,94,0.1);border:1px solid rgba(34,197,94,0.3);color:#4ade80;}
.alert--err{background-color:rgba(239,68,68,0.1);border:1px solid rgba(239,68,68,0.3);color:#f87171;}

/* ---------- About page ---------- */
.sec-title{font-size:clamp(24px,3.5vw,36px);font-weight:700;letter-spacing:-0.02em;line-height:1.2;margin:0 0 8px;}
.sec-lead{color:var(--text-secondary);font-size:15px;line-height:1.8;margin:0 0 32px;max-width:760px;}
.en{display:block;margin-top:6px;font-size:13px;color:var(--text-secondary);opacity:.7;}
.lead .en{font-size:15px;margin-top:8px;}
a.subcard{display:block;text-decoration:none;}
a.subcard:hover{border-color:var(--accent);}
a.subcard .more{color:var(--accent);font-size:13px;font-weight:600;margin-top:14px;display:inline-block;}
.greeting{color:var(--text-secondary);font-size:16px;line-height:1.9;}
.greeting p{margin:0 0 1.1em;}
.greeting__sign{margin-top:24px;color:var(--text-primary);font-weight:600;}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--border);background-color:var(--surface);padding:48px 24px;margin-top:80px;}
.site-footer__grid{max-width:var(--container);margin:0 auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:40px;}
.site-footer .brand{display:block;font-family:var(--font-brand);font-size:16px;margin-bottom:12px;}
.site-footer p{color:var(--text-secondary);font-size:13px;line-height:1.6;margin:0;}
.footer-col .h{font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.08em;margin:0 0 16px;}
.footer-col a{display:block;color:var(--text-secondary);text-decoration:none;font-size:14px;margin-bottom:10px;}
.footer-col a:hover{color:var(--text-primary);}
.footer-bottom{max-width:var(--container);margin:40px auto 0;padding-top:24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;}
.footer-bottom p{color:var(--text-secondary);font-size:13px;margin:0;}