/* ZNZ Engineering & Trading — Clean White Professional Theme */
:root {
  --blue:       #1a3a6b;
  --blue-mid:   #1e4d8c;
  --blue-light: #e8f1fb;
  --blue-pale:  #f4f7fc;
  --teal:       #0e7490;
  --gold:       #c9941e;
  --text:       #1a2340;
  --muted:      #5a6a85;
  --border:     #dde4f0;
  --white:      #ffffff;
  --shadow:     0 4px 20px rgba(26,58,107,.10);
  --shadow-lg:  0 8px 36px rgba(26,58,107,.14);
  --r:          6px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter','Segoe UI',system-ui,sans-serif; background:#fff; color:var(--text); line-height:1.6; overflow-x:hidden; }
a { text-decoration:none; color:inherit; }
img { display:block; max-width:100%; }
ul { list-style:none; }
button { font-family:inherit; cursor:pointer; border:none; background:none; }

.container { max-width:1160px; margin:0 auto; padding:0 5%; }
.sec { padding:68px 0; }
.sec-alt { background:var(--blue-pale); }

/* TOPBAR */
.topbar { background:var(--blue); padding:7px 0; font-size:.78rem; }
.topbar .container { display:flex; justify-content:flex-end; gap:22px; align-items:center; flex-wrap:wrap; }
.topbar a { color:#a8c4e0; display:flex; align-items:center; gap:5px; transition:color .2s; }
.topbar a:hover { color:#fff; }
.topbar svg { flex-shrink:0; }

/* NAVBAR */
.navbar { position:sticky; top:0; z-index:900; background:#fff; border-bottom:3px solid var(--blue); box-shadow:0 2px 12px rgba(26,58,107,.08); }
.navbar .container { display:flex; align-items:center; justify-content:space-between; height:72px; }
.nav-logo img { height:64px; width:auto; max-width:340px; object-fit:contain; }
.nav-links { display:flex; align-items:center; gap:0; }
.nav-links a { font-size:.78rem; font-weight:600; text-transform:uppercase; letter-spacing:.6px; color:var(--muted); padding:8px 13px; border-bottom:3px solid transparent; transition:all .2s; }
.nav-links a:hover { color:var(--blue); border-bottom-color:var(--blue); }
.nav-cta { background:var(--blue)!important; color:#fff!important; border-radius:4px; border-bottom:none!important; margin-left:8px; padding:8px 18px!important; }
.nav-cta:hover { background:var(--blue-mid)!important; }
.hbg { display:none; flex-direction:column; gap:5px; padding:4px; }
.hbg span { display:block; width:22px; height:2px; background:var(--blue); border-radius:2px; }

/* HERO */
.hero { position:relative; min-height:76vh; display:flex; align-items:center; background:#0a1c3a; overflow:hidden; }
.hero-bg { position:absolute; inset:0; background:url('assets/hero_bg.jpg') center/cover no-repeat; opacity:1; }
.hero-ov { position:absolute; inset:0; background:linear-gradient(110deg,rgba(10,28,58,.72) 35%,rgba(10,28,58,.25) 100%); }
.hero-inner { position:relative; z-index:2; padding:80px 0; max-width:680px; margin-left:0; margin-right:auto; text-align:left; }
.hero-badge { display:inline-flex; align-items:center; gap:8px; border:1px solid rgba(201,148,30,.4); color:#f0c060; padding:5px 14px; border-radius:20px; font-size:.7rem; font-weight:700; letter-spacing:2px; text-transform:uppercase; margin-bottom:20px; }
.hero h1 { font-size:clamp(2rem,4.5vw,3.5rem); font-weight:800; color:#fff; line-height:1.1; margin-bottom:16px; }
.hero h1 span { color:#f0c060; }
.hero-sub { font-size:.97rem; color:#a8c4e0; line-height:1.8; margin-bottom:28px; max-width:560px; }
.btns { display:flex; gap:12px; flex-wrap:wrap; }
.btn { display:inline-flex; align-items:center; gap:6px; padding:10px 24px; border-radius:4px; font-size:.88rem; font-weight:600; transition:all .2s; border:2px solid transparent; }
.btn-gold { background:var(--gold); color:#fff; border-color:var(--gold); }
.btn-gold:hover { background:#b8830f; transform:translateY(-1px); box-shadow:var(--shadow); }
.btn-outline-w { border-color:rgba(255,255,255,.45); color:#fff; }
.btn-outline-w:hover { background:rgba(255,255,255,.12); border-color:#fff; }
.btn-blue { background:var(--blue); color:#fff; border-color:var(--blue); }
.btn-blue:hover { background:var(--blue-mid); }
.btn-sm { padding:7px 16px; font-size:.8rem; }

/* STATS */
.stats { background:var(--blue); }
.stats-grid { display:grid; grid-template-columns:repeat(4,1fr); }
.stat { padding:22px 12px; text-align:center; border-right:1px solid rgba(255,255,255,.1); }
.stat:last-child { border-right:none; }
.stat-n { font-size:2rem; font-weight:800; color:#f0c060; line-height:1; margin-bottom:4px; }
.stat-l { font-size:.62rem; text-transform:uppercase; letter-spacing:2px; color:#8aaad0; }

/* SECTION HEADS */
.sh { margin-bottom:40px; }
.sh.center { text-align:center; max-width:680px; margin:0 auto 40px; }
.overline { display:block; font-size:.66rem; font-weight:800; letter-spacing:3px; text-transform:uppercase; color:var(--teal); margin-bottom:7px; }
.sh h2 { font-size:clamp(1.5rem,2.8vw,2.2rem); font-weight:700; color:var(--blue); line-height:1.15; margin-bottom:10px; }
.bar { width:42px; height:4px; background:var(--gold); border-radius:2px; margin-top:12px; }
.sh.center .bar { margin:12px auto 0; }
.sh p { font-size:.9rem; color:var(--muted); line-height:1.75; margin-top:12px; }

/* ABOUT */
.about-grid { display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.about-img { border-radius:8px; overflow:hidden; box-shadow:var(--shadow-lg); }
.about-img img { width:100%; height:440px; object-fit:cover; object-position:center; }
.check li { display:flex; gap:9px; align-items:flex-start; font-size:.88rem; color:var(--muted); padding:6px 0; border-bottom:1px solid #eef2f8; }
.check li:last-child { border-bottom:none; }
.check li::before { content:'✓'; color:var(--blue); font-weight:800; flex-shrink:0; margin-top:1px; }
.vision { background:var(--blue-light); border-left:4px solid var(--blue); padding:13px 16px; border-radius:0 4px 4px 0; margin-top:18px; font-size:.87rem; color:var(--blue); line-height:1.65; font-style:italic; }

/* PORTFOLIO TABS */
.ptabs { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:40px; }
.ptab { padding:6px 16px; border-radius:20px; border:1.5px solid var(--border); font-size:.77rem; font-weight:600; color:var(--muted); background:#fff; transition:all .2s; }
.ptab:hover,.ptab.active { background:var(--blue); color:#fff; border-color:var(--blue); }

/* PRODUCT BLOCKS */
.prod-block { padding:52px 0; border-bottom:1px solid var(--border); }
.prod-block:nth-child(even) { background:var(--blue-pale); }
.prod-head { display:flex; align-items:center; gap:14px; margin-bottom:28px; padding-bottom:14px; border-bottom:2px solid var(--border); }
.prod-num { width:40px; height:40px; border-radius:50%; background:var(--blue); color:#fff; display:flex; align-items:center; justify-content:center; font-size:.78rem; font-weight:700; flex-shrink:0; }
.prod-head h2 { font-size:1.45rem; font-weight:700; color:var(--blue); }
.prod-layout { display:grid; grid-template-columns:1fr 1fr; gap:44px; align-items:start; }
.prod-layout.flip { direction:rtl; }
.prod-layout.flip > * { direction:ltr; }

/* IMAGE GALLERY in product blocks */
.img-gallery { display:flex; flex-direction:column; gap:0; border-radius:8px; overflow:hidden; box-shadow:var(--shadow); }
.img-gallery-main { width:100%; height:230px; object-fit:cover; display:block; }
.img-gallery-caption { background:var(--blue); color:#fff; font-size:.73rem; font-weight:600; letter-spacing:.8px; text-transform:uppercase; padding:9px 14px; }

/* TYPE GRID — shows product type images in a grid */
.type-grid { display:grid; grid-template-columns:repeat(auto-fit, minmax(110px,1fr)); gap:12px; margin:12px 0; }
.type-card { background:#fff; border:1.5px solid var(--border); border-radius:6px; padding:10px 8px; text-align:center; transition:all .2s; }
.type-card:hover { border-color:var(--blue); box-shadow:var(--shadow); }
.type-card img { width:100%; height:70px; object-fit:contain; margin-bottom:6px; display:block; }
.type-card span { font-size:.72rem; font-weight:600; color:var(--text); line-height:1.3; display:block; }

/* PANEL IMAGE — full-width image from brochure */
.panel-img { width:100%; border-radius:6px; border:1px solid var(--border); box-shadow:var(--shadow); margin:12px 0; }

/* PRODUCT CONTENT */
.prod-desc { font-size:.9rem; color:var(--muted); line-height:1.78; margin-bottom:16px; }
.sub-h { font-size:.68rem; font-weight:800; letter-spacing:2px; text-transform:uppercase; color:var(--teal); padding-bottom:5px; border-bottom:2px solid var(--border); margin:18px 0 10px; }
.sub-h:first-of-type { margin-top:0; }
.ilist li { font-size:.84rem; color:var(--text); padding:5px 0 5px 13px; position:relative; border-bottom:1px solid #eef2f8; line-height:1.4; }
.ilist li:last-child { border-bottom:none; }
.ilist li::before { content:'›'; position:absolute; left:0; color:var(--blue); font-weight:700; }
.tags { display:flex; flex-wrap:wrap; gap:5px; margin-top:8px; }
.tag { background:var(--blue-light); color:var(--blue-mid); font-size:.71rem; font-weight:600; padding:3px 10px; border-radius:12px; }
.prod-cta { margin-top:20px; padding-top:14px; border-top:1px solid var(--border); }

/* INDUSTRIES */
.ind-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:14px; }
.ind-card { background:#fff; border:1.5px solid var(--border); border-radius:8px; padding:20px 10px; text-align:center; transition:all .2s; }
.ind-card:hover { background:var(--blue); border-color:var(--blue); transform:translateY(-2px); box-shadow:var(--shadow); }
.ind-card:hover svg path,.ind-card:hover svg circle,.ind-card:hover svg rect,.ind-card:hover svg line { stroke:#fff; }
.ind-card:hover .icn { color:#fff; }
.ind-icon { margin:0 auto 10px; }
.icn { font-size:.8rem; font-weight:600; color:var(--text); }

/* CONTACT */
.contact-grid { display:grid; grid-template-columns:1fr 1.1fr; gap:48px; align-items:start; }
.cinfo { background:var(--blue); border-radius:8px; padding:32px; color:#fff; box-shadow:var(--shadow-lg); }
.cinfo h3 { font-size:1.1rem; margin-bottom:24px; color:#fff; }
.ci { display:flex; gap:13px; align-items:flex-start; margin-bottom:22px; }
.ci-ic { width:38px; height:38px; min-width:38px; border-radius:5px; background:rgba(255,255,255,.1); display:flex; align-items:center; justify-content:center; }
.ci strong { display:block; font-size:.65rem; letter-spacing:1.5px; text-transform:uppercase; color:#f0c060; margin-bottom:3px; }
.ci span,.ci a { font-size:.88rem; color:#a8c4e0; line-height:1.5; }
.ci a:hover { color:#fff; }
.cform { background:#fff; border:1.5px solid var(--border); border-radius:8px; padding:32px; box-shadow:var(--shadow); }
.cform h3 { font-size:1.1rem; color:var(--blue); margin-bottom:20px; }
.form { display:flex; flex-direction:column; gap:13px; }
.frow { display:grid; grid-template-columns:1fr 1fr; gap:13px; }
.fg { display:flex; flex-direction:column; gap:4px; }
.fg label { font-size:.68rem; font-weight:700; text-transform:uppercase; letter-spacing:.8px; color:var(--muted); }
.fg input,.fg textarea,.fg select { border:1.5px solid var(--border); border-radius:4px; padding:9px 12px; font-size:.88rem; font-family:inherit; color:var(--text); background:#fff; outline:none; transition:border-color .2s; }
.fg input:focus,.fg textarea:focus,.fg select:focus { border-color:var(--blue); box-shadow:0 0 0 3px rgba(26,58,107,.08); }
.fg textarea { resize:vertical; min-height:96px; }
.fsub { width:100%; padding:11px; font-size:.9rem; border-radius:4px; border:none; }

/* FOOTER */
.footer { background:#0a1e3d; color:#8aaad0; }
.foot-top { display:grid; grid-template-columns:1.5fr 1fr 1fr 1fr; gap:32px; padding:48px 0 32px; border-bottom:1px solid rgba(255,255,255,.07); }
.foot-brand img { height:56px; width:auto; max-width:280px; object-fit:contain; margin-bottom:12px; background:#fff; padding:4px 8px; border-radius:4px; }
.foot-brand p { font-size:.8rem; line-height:1.65; max-width:240px; }
.foot-col h5 { font-size:.64rem; font-weight:800; letter-spacing:2px; text-transform:uppercase; color:#f0c060; margin-bottom:12px; }
.foot-col li { margin-bottom:7px; }
.foot-col a { font-size:.8rem; color:#4a6a90; transition:color .2s; }
.foot-col a:hover { color:#fff; }
.foot-bot { padding:16px 0; display:flex; justify-content:space-between; align-items:center; font-size:.75rem; color:rgba(74,106,144,.5); flex-wrap:wrap; gap:8px; }
.foot-bot a { color:rgba(74,106,144,.5); }
.foot-bot a:hover { color:#fff; }

/* REVEAL */
.reveal { opacity:0; transform:translateY(22px); transition:opacity .55s ease,transform .55s ease; }
.reveal.visible { opacity:1; transform:translateY(0); }

/* RESPONSIVE */
@media(max-width:1024px){
  .about-grid,.contact-grid { grid-template-columns:1fr; }
  .foot-top { grid-template-columns:1fr 1fr; }
  .ind-grid { grid-template-columns:repeat(3,1fr); }
}
@media(max-width:900px){
  .hbg { display:flex; }
  .nav-links { display:none; flex-direction:column; position:absolute; top:72px; left:0; right:0; background:#fff; border-bottom:3px solid var(--blue); padding:14px 5%; box-shadow:var(--shadow-lg); align-items:stretch; }
  .nav-links.open { display:flex; }
  .nav-links a { padding:10px 0; border-bottom:1px solid var(--border)!important; }
  .nav-cta { margin:8px 0 0; text-align:center; border-bottom:none!important; }
}
@media(max-width:768px){
  .stats-grid { grid-template-columns:1fr 1fr; }
  .stat:nth-child(2) { border-right:none; }
  .prod-layout,.prod-layout.flip { grid-template-columns:1fr; direction:ltr; }
  .ind-grid { grid-template-columns:repeat(2,1fr); }
  .frow { grid-template-columns:1fr; }
  .foot-top { grid-template-columns:1fr; }
  .type-grid { grid-template-columns:repeat(3,1fr); }
}
@media(max-width:480px){
  .ind-grid { grid-template-columns:repeat(2,1fr); }
  .type-grid { grid-template-columns:repeat(2,1fr); }
}