/* ==========================================================
   YY SECURITY — shared stylesheet
   Dark premium security theme with gold accent
   (aligned with YEONYOUNG HOLDING design language)
   ========================================================== */

:root{
  --bg: #0b0c0e;
  --bg-alt: #111318;
  --panel: #16181d;
  --border: rgba(255,255,255,0.08);
  --text: #eef0f2;
  --text-dim: #9aa0a8;
  --gold: #c9a24b;
  --gold-light: #e4c581;
  --maxw: 1200px;
  --radius: 4px;
  font-size: 16px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Noto Sans KR', sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4{
  font-family: 'Playfair Display', 'Noto Serif KR', serif;
  font-weight: 700;
  line-height: 1.25;
  margin: 0 0 16px;
  letter-spacing: 0.01em;
}
p{ margin: 0 0 16px; color: var(--text-dim); }
a{ color: inherit; text-decoration: none; }
img{ max-width:100%; display:block; }
.container{ max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.eyebrow{
  display:inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 14px;
}
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid var(--gold);
  color: var(--gold-light);
  background: transparent;
  cursor:pointer;
  transition: all .25s ease;
}
.btn:hover{ background: var(--gold); color:#111; }
.btn.solid{ background: var(--gold); color:#161616; }
.btn.solid:hover{ background: var(--gold-light); }

/* ---------- Header ---------- */
header.site-header{
  position: fixed;
  top:0; left:0; right:0;
  z-index: 1000;
  background: rgba(11,12,14,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  font-family:'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight:700;
  letter-spacing: 0.06em;
  color: var(--text);
}
.logo span{ color: var(--gold); }
.logo img.logo-mark{
  width: 36px; height: 36px; object-fit:contain;
  mix-blend-mode: screen;
}
.logo .logo-text{ display:flex; flex-direction:column; line-height:1.05; }
.logo .logo-text small{ font-family:'Inter',sans-serif; font-size:0.58rem; letter-spacing:0.22em; color:var(--text-dim); font-weight:600; }

nav.main-nav ul{
  list-style:none;
  display:flex;
  gap: 34px;
  margin:0; padding:0;
}
nav.main-nav a{
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  color: var(--text-dim);
  transition: color .2s;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
}
nav.main-nav a:hover, nav.main-nav a.active{
  color: var(--gold-light);
  border-bottom-color: var(--gold);
}
.nav-right{ display:flex; align-items:center; gap:22px; }
.lang-toggle{
  font-size:0.78rem;
  letter-spacing:0.05em;
  color: var(--text-dim);
  border:1px solid var(--border);
  padding:6px 12px;
  border-radius: 999px;
  cursor:pointer;
  user-select:none;
  transition: color .2s ease, border-color .2s ease;
}
.lang-toggle:hover{
  color: var(--gold-light);
  border-color: var(--gold);
}
.menu-btn{
  display:none;
  background:none; border:none; color:var(--text);
  font-size:1.4rem; cursor:pointer;
}

/* mobile nav */
@media (max-width: 860px){
  nav.main-nav{
    position:fixed;
    top:63px; left:0; right:0; bottom:0;
    height: calc(100vh - 63px);
    z-index: 1200;
    background: var(--bg-alt);
    padding: 30px 24px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
  }
  nav.main-nav.open{ opacity:1; visibility:visible; transform: translateY(0); }
  nav.main-nav ul{ flex-direction:column; gap:22px; }
  nav.main-nav a{ font-size: 1rem; }
  .menu-btn{ display:block; }
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  display:flex;
  align-items:flex-start;
  padding: 124px 0 84px;
  overflow:hidden;
  background:
    radial-gradient(1200px 600px at 78% 12%, rgba(201,162,75,0.16), transparent 60%),
    linear-gradient(180deg, #0d0e11 0%, #0b0c0e 55%, var(--bg) 100%);
}
.hero-grid{
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 70% 30%, #000 0%, transparent 72%);
}
.hero::after{
  content:'';
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(11,12,14,0.25) 0%, rgba(11,12,14,0.55) 70%, var(--bg) 100%);
}
.hero .container{ position:relative; z-index:2; }
.hero h1{ font-size: clamp(2.2rem, 5vw, 3.6rem); max-width: 780px; color:#fff; }
.hero p.lead{ max-width: 580px; font-size: 1.05rem; color: var(--text-dim); }
.hero .cta-row{ display:flex; align-items:center; gap:26px; margin-top: 30px; flex-wrap:wrap; }
.scroll-hint{ font-size:0.75rem; letter-spacing:0.15em; color: var(--text-dim); text-transform:uppercase; }
@media (max-width: 860px){ .hero{ padding: 108px 0 60px; } }

/* ---------- Page hero (inner pages) ---------- */
.page-hero{
  position:relative;
  padding: 170px 0 70px;
  background:
    radial-gradient(900px 400px at 85% 0%, rgba(201,162,75,0.14), transparent 60%),
    linear-gradient(180deg, #0d0e11, var(--bg));
}
.page-hero::after{
  content:'';
  position:absolute; inset:0;
  background: linear-gradient(180deg, rgba(11,12,14,0.35), var(--bg));
}
.page-hero .container{ position:relative; z-index:2; }
.page-hero h1{ font-size: clamp(1.8rem, 4vw, 2.6rem); color:#fff; margin-bottom:12px; }
.page-hero p{ max-width: 620px; }

/* ---------- Sections ---------- */
section{ padding: 90px 0; }
section.alt{ background: var(--bg-alt); }
.section-head{ max-width: 660px; margin-bottom: 52px; }
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.3rem); color:#fff; }

/* ---------- Grid cards ---------- */
.grid{ display:grid; gap: 28px; }
.grid-4{ grid-template-columns: repeat(4, 1fr); }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 1000px){ .grid-4{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 900px){ .grid-3{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px){ .grid-4, .grid-3, .grid-2{ grid-template-columns: 1fr; } }

.card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow:hidden;
  transition: transform .3s ease, border-color .3s ease;
}
.card:hover{ transform: translateY(-6px); border-color: var(--gold); }
.card .card-body{ padding: 26px; }
.card .tag{ font-size:0.7rem; letter-spacing:0.15em; text-transform:uppercase; color: var(--gold); }
.card h3{ font-size: 1.12rem; margin: 10px 0 8px; color:#fff; }
.card p{ margin:0; font-size:0.92rem; }

/* icon badge */
.icon-badge{
  width: 46px; height: 46px; border-radius: 8px;
  display:flex; align-items:center; justify-content:center;
  background: rgba(201,162,75,0.12);
  border: 1px solid rgba(201,162,75,0.4);
  color: var(--gold-light);
  margin-bottom: 16px;
}
.icon-badge svg{ width: 24px; height: 24px; }

/* number list (service detail) */
.svc-list{ display:flex; flex-direction:column; gap: 2px; }
.svc-row{
  display:grid; grid-template-columns: 64px 1fr; gap: 24px;
  padding: 30px 0; border-top: 1px solid var(--border);
  align-items:start;
}
.svc-row:last-child{ border-bottom: 1px solid var(--border); }
.svc-row .num{ font-family:'Playfair Display',serif; font-size:1.5rem; color: var(--gold); }
.svc-row h3{ font-size: 1.2rem; color:#fff; margin-bottom: 8px; }
.svc-row p{ margin: 0; }
@media (max-width: 640px){
  .svc-row{ grid-template-columns: 1fr; gap: 10px; }
}

/* ---------- Stats ---------- */
.stats{ display:flex; gap: 60px; flex-wrap:wrap; margin-top: 34px; }
.stat b{
  display:block; font-family:'Playfair Display',serif;
  font-size: 2.4rem; color: var(--gold-light);
}
.stat span{ font-size:0.82rem; color: var(--text-dim); letter-spacing:0.05em; text-transform:uppercase; }

/* ---------- Timeline ---------- */
.timeline{ border-left: 1px solid var(--border); padding-left: 30px; display:flex; flex-direction:column; gap: 30px; }
.timeline .item b{ color: var(--gold-light); font-size:1.2rem; display:block; margin-bottom:6px; font-family:'Playfair Display',serif; }

/* ---------- Split feature ---------- */
.split{ display:grid; grid-template-columns: 1.1fr 1fr; gap: 60px; align-items:center; }
@media (max-width: 900px){ .split{ grid-template-columns: 1fr; gap: 34px; } }
.split .visual{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background:
    radial-gradient(600px 300px at 30% 20%, rgba(201,162,75,0.18), transparent 60%),
    linear-gradient(160deg, #14161b, #0e0f13);
  min-height: 320px;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
}
.split .visual img{ max-width: 62%; opacity: 0.92; }

/* ---------- CTA band ---------- */
.cta-band{
  background:
    radial-gradient(700px 300px at 50% 0%, rgba(201,162,75,0.16), transparent 65%),
    var(--bg-alt);
  text-align:center;
}
.cta-band h2{ color:#fff; font-size: clamp(1.6rem,3vw,2.2rem); }
.cta-band p{ max-width: 560px; margin: 0 auto 26px; }

/* ---------- Form ---------- */
form.contact-form{ display:grid; gap: 18px; max-width: 640px; }
form.contact-form label{ font-size:0.82rem; color: var(--text-dim); display:block; margin-bottom:6px; }
form.contact-form input, form.contact-form select, form.contact-form textarea{
  width:100%; padding: 13px 14px; background: var(--panel); border:1px solid var(--border);
  border-radius: var(--radius); color: var(--text); font-family:inherit; font-size:0.95rem;
}
form.contact-form textarea{ min-height: 130px; resize:vertical; }
form.contact-form input:focus, form.contact-form select:focus, form.contact-form textarea:focus{
  outline:none; border-color: var(--gold);
}
.form-note{ font-size:0.8rem; color: var(--text-dim); margin-top:10px; }
.form-result{ font-size: 0.9rem; margin-top: 6px; }

/* contact info list */
.info-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:18px; }
.info-list li{ display:flex; flex-direction:column; gap:2px; }
.info-list .k{ font-size:0.72rem; letter-spacing:0.14em; text-transform:uppercase; color: var(--gold); }
.info-list .v{ color: var(--text); font-size:0.98rem; }

/* ---------- Footer ---------- */
footer{ border-top: 1px solid var(--border); padding: 60px 0 30px; background: var(--bg-alt); }
.footer-top{ display:flex; justify-content:space-between; flex-wrap:wrap; gap:40px; margin-bottom:40px; }
.footer-brand h3{ color:#fff; font-size:1.3rem; margin-bottom:8px; }
.footer-brand p{ max-width:320px; font-size:0.88rem; }
.footer-cols{ display:flex; gap:70px; flex-wrap:wrap; }
.footer-col h4{ font-size:0.78rem; letter-spacing:0.1em; text-transform:uppercase; color: var(--text); margin-bottom:16px; font-family:'Inter',sans-serif; font-weight:700; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; }
.footer-col a, .footer-col li{ font-size:0.88rem; color: var(--text-dim); }
.footer-col a:hover{ color: var(--gold-light); }
.footer-bottom{
  border-top:1px solid var(--border); padding-top: 22px; margin-top: 30px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:0.78rem; color: var(--text-dim);
}
.footer-bottom a{ margin-left: 18px; }

/* ---------- Legal pages ---------- */
.legal{ padding-top: 150px; }
.legal h2{ color:#fff; font-size:1.2rem; margin-top:36px; }
.legal p, .legal li{ color: var(--text-dim); font-size:0.94rem; }

/* ---------- 404 ---------- */
.simple-page{ padding: 220px 0 150px; text-align:center; }
.simple-page h1{ font-size: 5rem; color: var(--gold); margin-bottom: 6px; }

/* ---------- Promo video ---------- */
.video-frame{
  position: relative;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: #000;
  box-shadow: 0 30px 80px rgba(0,0,0,0.45);
}
.video-frame video{ display:block; width:100%; height:auto; }

/* ---------- Compare (old vs new) ---------- */
.compare{ display:grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 800px){ .compare{ grid-template-columns: 1fr; } }
.compare .col{ border:1px solid var(--border); border-radius: var(--radius); padding: 28px; background: var(--panel); }
.compare .col.new{ border-color: var(--gold); background: rgba(201,162,75,0.06); }
.compare h3{ font-size: 1.05rem; margin-bottom: 18px; }
.compare .col.old h3{ color: var(--text-dim); }
.compare .col.new h3{ color: var(--gold-light); }
.compare ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:14px; }
.compare li{ font-size: 0.92rem; color: var(--text-dim); padding-left: 26px; position:relative; }
.compare .col.old li::before{ content:'—'; position:absolute; left:0; color: var(--text-dim); }
.compare .col.new li{ color: var(--text); }
.compare .col.new li::before{ content:'✓'; position:absolute; left:0; color: var(--gold); font-weight:700; }

/* ---------- Flow steps ---------- */
.flow{ display:grid; grid-template-columns: repeat(4,1fr); gap: 0; }
@media (max-width: 900px){ .flow{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 520px){ .flow{ grid-template-columns: 1fr; } }
.flow .step{ padding: 26px; border:1px solid var(--border); border-right:0; }
.flow .step:last-child{ border-right:1px solid var(--border); }
@media (max-width: 900px){
  .flow .step{ border-right:1px solid var(--border); border-bottom:0; }
  .flow .step:nth-last-child(-n+1){ border-bottom:1px solid var(--border); }
}
.flow .step b{ display:block; font-family:'Playfair Display',serif; color: var(--gold); font-size:1.1rem; margin-bottom:8px; }
.flow .step p{ margin:0; font-size:0.9rem; }

/* ---------- Control-center map dashboard ---------- */
.dash{
  display:grid; grid-template-columns: 1fr 300px; gap: 0;
  border:1px solid var(--border); border-radius: var(--radius); overflow:hidden;
  background: #0c0f14;
}
@media (max-width: 860px){ .dash{ grid-template-columns: 1fr; } }
.dash-map{ position:relative; min-height: 440px; background:
  radial-gradient(1000px 500px at 30% 20%, rgba(40,60,90,0.35), transparent 70%), #0a0d12; }
.dash-map svg{ position:absolute; inset:0; width:100%; height:100%; }
.dash-side{ border-left:1px solid var(--border); padding: 22px; background: var(--bg-alt); }
@media (max-width: 860px){ .dash-side{ border-left:0; border-top:1px solid var(--border); } }
.dash-side h4{ font-size:0.72rem; letter-spacing:0.16em; text-transform:uppercase; color: var(--gold); font-family:'Inter',sans-serif; margin-bottom:16px; }
.dash-row{ display:flex; justify-content:space-between; align-items:baseline; padding:12px 0; border-top:1px solid var(--border); font-size:0.9rem; color: var(--text-dim); }
.dash-row:first-of-type{ border-top:0; }
.dash-row b{ color: var(--gold-light); font-family:'Playfair Display',serif; font-size:1.2rem; }
.dash-legend{ display:flex; flex-wrap:wrap; gap:14px 20px; margin-top: 20px; }
.dash-legend span{ display:flex; align-items:center; gap:8px; font-size:0.8rem; color: var(--text-dim); }
.dash-legend i{ width:10px; height:10px; border-radius:50%; display:inline-block; }
.lg-patrol{ background:#c9a24b; }
.lg-cctv{ background:#4a8fd0; }
.lg-alarm{ background:#e0564a; }
.dash-badge{
  position:absolute; top:14px; left:14px; z-index:2;
  display:flex; align-items:center; gap:8px;
  font-size:0.72rem; letter-spacing:0.12em; text-transform:uppercase; color: var(--text);
  background: rgba(10,13,18,0.8); border:1px solid var(--border);
  padding:6px 12px; border-radius:999px;
}
.dash-badge::before{ content:''; width:8px; height:8px; border-radius:50%; background:#5ad06a; box-shadow:0 0 0 0 rgba(90,208,106,0.6); animation: pulse 2s infinite; }
@keyframes pulse{ 0%{ box-shadow:0 0 0 0 rgba(90,208,106,0.6);} 70%{ box-shadow:0 0 0 8px rgba(90,208,106,0);} 100%{ box-shadow:0 0 0 0 rgba(90,208,106,0);} }

@media (prefers-reduced-motion: reduce){
  .dash-map svg animateMotion{ display:none; }
}

/* ---------- Agency / link grid ---------- */
.agency-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
@media (max-width: 1000px){ .agency-grid{ grid-template-columns: repeat(2,1fr); } }
@media (max-width: 560px){ .agency-grid{ grid-template-columns: 1fr; } }

/* ---------- Add-on / checklist ---------- */
.check-list{ list-style:none; margin: 18px 0 0; padding:0; display:grid; grid-template-columns: repeat(2,1fr); gap: 12px 24px; }
@media (max-width: 640px){ .check-list{ grid-template-columns: 1fr; } }
.check-list li{ font-size:0.92rem; color: var(--text-dim); padding-left: 24px; position:relative; }
.check-list li::before{ content:'✓'; position:absolute; left:0; color: var(--gold); font-weight:700; }

/* ---------- Logo lockup (mark + wordmark, no panel) ---------- */
.logo-lockup{ text-align:center; }
.logo-lockup .mark{
  width: 220px; max-width: 60%; margin: 0 auto;
  mix-blend-mode: screen;      /* drops the near-black source background */
}
.logo-lockup .name{
  font-family:'Playfair Display','Noto Serif KR',serif;
  font-weight:700; letter-spacing:0.13em;
  color: var(--gold-light); font-size: 1.6rem; margin-top: 18px;
}
.logo-lockup .sub{
  font-family:'Inter',sans-serif; font-weight:600;
  letter-spacing:0.42em; text-transform:uppercase;
  color: var(--gold); font-size: 0.64rem; margin-top: 6px; padding-left: 0.42em;
}
.split .visual.bare{ background:none; border:0; min-height:auto; }