/* ============================================================
   Advin Advertising — brand green #23C552
   ============================================================ */
:root{
  --green:#23C552;
  --green-bright:#2AE85F;
  --green-deep:#12A63F;
  --green-ink:#0B7A2E;
  --ink:#0d1411;
  --ink-2:#1a2620;
  --text:#20302a;
  --muted:#6a7b73;
  --line:#e6ece9;
  --bg:#ffffff;
  --bg-soft:#f5f9f6;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 18px 50px -20px rgba(18,80,45,.28);
  --shadow-sm:0 8px 24px -14px rgba(18,80,45,.35);
  --maxw:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:'Space Grotesk',system-ui,sans-serif;color:var(--ink);line-height:1.1;letter-spacing:-.02em}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;
  padding:12px 22px;border-radius:999px;border:1.5px solid transparent;
  cursor:pointer;transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s,color .18s;
  white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-lg{padding:15px 28px;font-size:16px}
.btn-block{width:100%}
.btn-primary{background:linear-gradient(135deg,var(--green-bright),var(--green-deep));color:#fff;box-shadow:0 10px 24px -10px rgba(35,197,82,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(35,197,82,.85)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);border-color:#fff}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{transform:translateY(-2px);background:#000}

.eyebrow{
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:13px;
  letter-spacing:.14em;text-transform:uppercase;color:var(--green-deep);
  margin-bottom:14px;
}

/* ============================================================
   Header
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.82);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:11px}
.brand-logo{height:34px;width:auto}
.brand-name{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:20px;color:var(--ink);letter-spacing:-.02em}
.brand-dot{color:var(--green-deep)}
.nav-links{display:flex;gap:30px}
.nav-links a{font-weight:500;font-size:15px;color:var(--text);transition:color .15s}
.nav-links a:hover{color:var(--green-deep)}
.nav-cta{padding:10px 20px}

.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.mobile-menu{display:none;flex-direction:column;gap:4px;padding:12px 24px 22px;border-bottom:1px solid var(--line);background:#fff}
.mobile-menu a{padding:12px 6px;font-weight:500;border-bottom:1px solid var(--line)}
.mobile-menu a.btn{border:0;margin-top:12px;justify-content:center}
.mobile-menu.show{display:flex}

/* ============================================================
   Hero
   ============================================================ */
.hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(160deg, rgba(9,18,12,.90) 0%, rgba(10,26,17,.78) 48%, rgba(8,17,11,.94) 100%),
    url("assets/screens/hero.jpg") center 35%/cover no-repeat,
    #0c1712;
  color:#fff;
  padding:110px 0 96px;
}
.hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(90% 70% at 50% 30%,#000 40%,transparent 100%);
  -webkit-mask-image:radial-gradient(90% 70% at 50% 30%,#000 40%,transparent 100%);
}
.hero-glow{
  position:absolute;top:-140px;right:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(42,232,95,.35),transparent 62%);
  filter:blur(20px);pointer-events:none;
}
.hero-inner{position:relative}
.hero .eyebrow{color:var(--green-bright)}
.hero h1{
  font-size:clamp(2.6rem,6vw,4.6rem);font-weight:700;color:#fff;
  letter-spacing:-.03em;margin-bottom:22px;
}
.hero-sub{font-size:clamp(1.05rem,2vw,1.28rem);color:rgba(255,255,255,.78);max-width:640px;margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:64px}

.hero-stats{display:flex;gap:40px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);padding-top:30px}
.stat{display:flex;flex-direction:column;gap:4px}
.stat-num{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.5rem;color:var(--green-bright)}
.stat-label{font-size:.92rem;color:rgba(255,255,255,.62)}

/* ---------- Trust strip ---------- */
.strip{background:var(--ink);color:rgba(255,255,255,.6)}
.strip-inner{padding:16px 24px;text-align:center;font-size:.92rem;letter-spacing:.01em}

/* ============================================================
   Sections
   ============================================================ */
.section{padding:96px 0}
.section-tint{background:var(--bg-soft)}
.section-head{max-width:720px;margin:0 auto 56px;text-align:center}
.section-head h2{font-size:clamp(1.9rem,3.6vw,2.7rem);margin-bottom:16px}
.section-lead{color:var(--muted);font-size:1.08rem}
.section-head .section-lead{margin-top:2px}

/* ---------- Service cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px 28px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.card-icon{
  width:54px;height:54px;border-radius:14px;display:grid;place-items:center;
  font-size:26px;margin-bottom:18px;
  background:linear-gradient(135deg,rgba(42,232,95,.16),rgba(18,166,63,.1));
}
.card h3{font-size:1.22rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.98rem}

/* ---------- Why (dark) ---------- */
.section-dark{
  background:linear-gradient(160deg,#0c1712,#0f2418);
  color:#fff;
}
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.why-copy h2{color:#fff;font-size:clamp(1.9rem,3.4vw,2.6rem);margin-bottom:16px}
.why-copy .eyebrow{color:var(--green-bright)}
.why-copy .section-lead{color:rgba(255,255,255,.72)}
.why-list{list-style:none;display:flex;flex-direction:column;gap:18px}
.why-list li{
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);
  border-radius:14px;padding:20px 22px;position:relative;padding-left:52px;
  color:rgba(255,255,255,.74);font-size:.98rem;
}
.why-list li::before{
  content:"✓";position:absolute;left:18px;top:19px;
  width:22px;height:22px;border-radius:50%;display:grid;place-items:center;
  background:var(--green);color:#04240f;font-weight:700;font-size:13px;
}
.why-list strong{color:#fff;display:block;margin-bottom:2px;font-family:'Space Grotesk',sans-serif}

/* ---------- Process steps ---------- */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:30px 26px;
}
.step-num{
  font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.05rem;
  color:#04240f;background:linear-gradient(135deg,var(--green-bright),var(--green-deep));
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
}
.step h3{font-size:1.15rem;margin-bottom:8px}
.step p{color:var(--muted);font-size:.95rem}

/* ---------- Gallery ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.tile{
  position:relative;height:230px;border-radius:var(--radius-lg);overflow:hidden;
  display:flex;align-items:flex-end;color:#fff;
  border:1px solid var(--line);
  transition:transform .25s var(--ease);
}
.tile:hover{transform:translateY(-4px)}
.tile figcaption{
  position:relative;z-index:2;padding:18px 20px;font-weight:600;
  font-family:'Space Grotesk',sans-serif;font-size:1rem;
  text-shadow:0 2px 10px rgba(0,0,0,.5);
}
.tile::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.55))}
.tile-led{background:linear-gradient(135deg,#0d3d22,#23C552)}
.tile-gantry{background:linear-gradient(135deg,#0c1712,#12A63F)}
.tile-wrap{background:linear-gradient(135deg,#134e2c,#2AE85F)}
.tile-digital{background:linear-gradient(135deg,#0a1a11,#1c8f43)}
.tile-unipole{background:linear-gradient(135deg,#0f2a1a,#34d968)}
.tile-mall{background:linear-gradient(135deg,#0c1712,#0B7A2E)}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,var(--green-bright),var(--green-deep));
  color:#fff;
}
.cta-inner{text-align:center;padding:72px 24px}
.cta-inner h2{color:#fff;font-size:clamp(1.8rem,3.4vw,2.6rem);margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.9);font-size:1.1rem;margin-bottom:28px}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:start}
.contact-copy .section-lead{margin-bottom:30px}
.contact-details{list-style:none;display:flex;flex-direction:column;gap:20px}
.contact-details li{display:flex;gap:14px;align-items:flex-start}
.contact-details .ic{
  width:40px;height:40px;flex:0 0 40px;border-radius:11px;display:grid;place-items:center;font-size:18px;
  background:var(--bg-soft);border:1px solid var(--line);
}
.contact-details a{color:var(--green-deep);font-weight:600}
.muted{color:var(--muted)}

.contact-form{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow-sm);
}
.field{margin-bottom:16px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field label{display:block;font-size:.86rem;font-weight:600;color:var(--text);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:11px;
  font-family:inherit;font-size:.98rem;color:var(--ink);background:#fcfdfc;
  transition:border-color .15s,box-shadow .15s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--green);box-shadow:0 0 0 3px rgba(35,197,82,.15);
}
.field textarea{resize:vertical}
.form-note{text-align:center;font-size:.82rem;color:var(--muted);margin-top:12px}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.66);padding:64px 0 26px}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-logo{height:38px;margin-bottom:16px;filter:drop-shadow(0 0 0 transparent)}
.footer-brand p{max-width:340px;font-size:.95rem}
.footer-col h4{color:#fff;font-size:.95rem;margin-bottom:14px;letter-spacing:.02em}
.footer-col a,.footer-col span{display:block;color:rgba(255,255,255,.62);font-size:.94rem;margin-bottom:9px;transition:color .15s}
.footer-col a:hover{color:var(--green-bright)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:22px;font-size:.86rem;color:rgba(255,255,255,.5);flex-wrap:wrap;gap:10px}
.to-top{color:rgba(255,255,255,.7)}
.to-top:hover{color:var(--green-bright)}

/* ---------- Screen inventory ---------- */
.screens{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.screen{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
  padding:26px 24px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s;
}
.screen:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:transparent}
.screen-photo{margin:-26px -24px 18px;background:#0d1f16;line-height:0}
.screen-photo img{width:100%;height:188px;object-fit:cover;display:block;transition:transform .4s var(--ease)}
.screen:hover .screen-photo img{transform:scale(1.05)}
.screen-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.tag{
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:.72rem;letter-spacing:.06em;
  text-transform:uppercase;padding:4px 10px;border-radius:999px;color:#04240f;
}
.tag-kl{background:linear-gradient(135deg,var(--green-bright),var(--green-deep))}
.tag-png{background:#d7f7e2;color:var(--green-ink)}
.tag-jhr{background:#e7ecea;color:var(--ink-2)}
.traffic{font-size:.82rem;font-weight:600;color:var(--muted)}
.screen h3{font-size:1.25rem;margin-bottom:4px}
.landmark{color:var(--muted);font-size:.92rem;margin-bottom:16px;min-height:2.6em}
.specs{list-style:none;display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--line);padding-top:14px}
.specs li{display:flex;justify-content:space-between;font-size:.9rem}
.specs span{color:var(--muted)}
.specs strong{color:var(--ink);font-family:'Space Grotesk',sans-serif;font-weight:600}
.fineprint{text-align:center;color:var(--muted);font-size:.86rem;max-width:760px;margin:34px auto 26px;line-height:1.6}
.center{text-align:center}

/* ---------- Format cards ---------- */
.format-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.format-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:34px 32px;
}
.format-card h3{font-size:1.5rem;margin-bottom:10px}
.format-card>p{color:var(--muted);margin-bottom:22px}
.format-stats{display:flex;gap:14px;margin-bottom:22px}
.format-stats div{
  flex:1;background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;
  padding:16px 12px;text-align:center;
}
.format-stats strong{display:block;font-family:'Space Grotesk',sans-serif;font-size:1.6rem;color:var(--green-deep);line-height:1}
.format-stats span{font-size:.8rem;color:var(--muted)}
.locations{font-size:.92rem;color:var(--text);line-height:1.7}
.locations strong{color:var(--ink)}

/* ============================================================
   Reveal on scroll
   ============================================================ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:960px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .screens{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .why-grid{grid-template-columns:1fr;gap:34px}
  .format-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .footer-inner{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:720px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .section{padding:70px 0}
  .hero{padding:80px 0 70px}
  .hero-stats{gap:26px}
  .cards,.gallery,.steps,.screens{grid-template-columns:1fr}
  .landmark{min-height:0}
  .field-row{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}