:root{
  --primary:#123a63;
  --primary-dark:#0d2b4a;
  --accent:#e8a33d;
  --accent-dark:#cf8a24;
  --text:#333;
  --bg:#f4f6f9;
  --white:#fff;
  --radius:8px;
  --shadow:0 2px 8px rgba(0,0,0,.12);
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Segoe UI',Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.6}
img{max-width:100%;height:auto;display:block}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* header */
.site-header{background:var(--primary);color:var(--white);position:sticky;top:0;z-index:100;box-shadow:0 2px 6px rgba(0,0,0,.3)}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 20px}
.logo img{height:42px;width:auto}
.main-nav ul{display:flex;gap:6px;list-style:none}
.main-nav a{display:block;color:var(--white);text-decoration:none;padding:8px 14px;border-radius:6px;font-weight:500;transition:background .2s}
.main-nav a:hover{background:rgba(255,255,255,.15)}
.main-nav a.active{background:var(--accent);color:var(--primary-dark)}
.nav-toggle{display:none;background:none;border:none;color:var(--white);font-size:26px;cursor:pointer}

/* hero */
.hero{position:relative;min-height:420px;display:flex;align-items:center;color:var(--white);overflow:hidden}
.hero-slides{position:absolute;inset:0}
.slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1s}
.slide.active{opacity:1}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(13,43,74,.85),rgba(13,43,74,.35))}
.hero-content{position:relative;z-index:2}
.hero h1{font-size:2.1rem;margin-bottom:14px;line-height:1.25}
.hero p{font-size:1.1rem;max-width:640px;margin-bottom:22px}
.btn{display:inline-block;background:var(--accent);color:var(--primary-dark);padding:12px 26px;border:none;border-radius:6px;font-weight:700;text-decoration:none;cursor:pointer;font-size:1rem;transition:background .2s}
.btn:hover{background:var(--accent-dark)}

/* sections */
.welcome{padding:48px 20px}
.welcome h2{color:var(--primary);margin-bottom:12px;font-size:1.7rem}
.welcome>p{margin-bottom:32px;max-width:820px}
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
.service-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px;display:flex;flex-direction:column;gap:8px;transition:transform .2s}
.service-card:hover{transform:translateY(-4px)}
.service-card img{width:56px;height:56px;object-fit:contain;margin-bottom:6px}
.service-card h3{color:var(--primary);font-size:1.1rem}
.service-card p{font-size:.92rem;flex:1}
.more{color:var(--accent-dark);font-weight:600;text-decoration:none}
.more:hover{text-decoration:underline}

.strip{background:var(--primary);color:var(--white);text-align:center;padding:18px 20px}

/* page */
.page-header{background:var(--primary-dark);color:var(--white);padding:30px 0}
.page-header h1{font-size:1.8rem}
.page{padding:40px 20px;background:var(--white);box-shadow:var(--shadow);border-radius:var(--radius);margin-top:-1px}
.page>p{margin-bottom:20px}

.offer-module{display:flex;gap:24px;align-items:flex-start;padding:24px 0;border-bottom:1px solid #e3e7ec}
.offer-module:last-child{border-bottom:none}
.offer-module img{width:220px;object-fit:contain;flex-shrink:0}
.offer-text h2{color:var(--primary);margin-bottom:10px}
.offer-text ul{margin:8px 0 8px 20px}

/* gallery */
.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px}
.project-card{background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;color:var(--text);text-decoration:none;display:flex;flex-direction:column;transition:transform .2s}
.project-card:hover{transform:translateY(-4px)}
.project-card img{width:100%;height:180px;object-fit:cover}
.project-body{padding:16px}
.project-body h3{color:var(--primary);margin-bottom:6px;font-size:1.05rem}
.project-body p{font-size:.9rem;margin-bottom:8px}
.project-desc{margin-bottom:24px;font-size:1.02rem;max-width:820px}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.gallery-item{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.gallery-item img{width:100%;height:180px;object-fit:cover;transition:transform .3s}
.gallery-item:hover img{transform:scale(1.05)}

/* files */
.files h2{color:var(--primary);margin:18px 0 8px}
.files ul{list-style:none;margin:0 0 10px}
.files li{margin-bottom:6px}
.files a{color:var(--primary);text-decoration:none}
.files a:hover{text-decoration:underline}

/* contact */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info h2{color:var(--primary);margin-bottom:14px}
.contact-info p{margin-bottom:8px}
.contact-form h2{color:var(--primary);margin-bottom:14px}
.contact-form label{display:block;margin-bottom:12px;font-weight:600;font-size:.92rem}
.contact-form input,.contact-form textarea{width:100%;padding:10px;margin-top:4px;border:1px solid #ccc;border-radius:6px;font:inherit}
.contact-form .ok{background:#e7f6e9;color:#2e7d32;padding:10px;border-radius:6px;margin-bottom:14px}

/* footer */
.site-footer{background:var(--primary-dark);color:#cbd5e1;margin-top:40px}
.footer-inner{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:28px;padding:36px 20px}
.site-footer a{color:#f1c27d;text-decoration:none}
.site-footer strong{color:var(--white)}
.copyright{border-top:1px solid rgba(255,255,255,.12);padding:14px 20px;font-size:.85rem;text-align:center}

/* admin */
.err{background:#fdecea;color:#c62828;padding:10px;border-radius:6px;margin-bottom:14px}
.ok{background:#e7f6e9;color:#2e7d32;padding:10px;border-radius:6px;margin-bottom:14px}
.admin-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.admin-card{background:var(--white);border:2px solid #dfe5ec;border-radius:var(--radius);padding:22px;color:var(--text);text-decoration:none;transition:border .2s,transform .2s}
.admin-card:hover{border-color:var(--accent);transform:translateY(-3px)}
.admin-card strong{font-size:1.8rem;color:var(--primary)}
.admin-card span{color:#64748b;font-size:.9rem}
.admin-table{width:100%;border-collapse:collapse;margin-top:8px}
.admin-table th,.admin-table td{border:1px solid #dfe5ec;padding:9px 12px;text-align:left;font-size:.92rem}
.admin-table th{background:var(--primary);color:var(--white)}
.admin-table tr:nth-child(even){background:#f8fafc}
.admin-form{background:#f8fafc;border:1px solid #dfe5ec;border-radius:var(--radius);padding:18px;margin-bottom:20px}
.admin-form h2{color:var(--primary);font-size:1.1rem;margin-bottom:12px}
.admin-form label{display:block;margin-bottom:10px;font-weight:600;font-size:.9rem}
.admin-form input,.admin-form select,.admin-form textarea{width:100%;padding:9px;margin-top:4px;border:1px solid #ccc;border-radius:6px;font:inherit}
.link-btn{background:none;border:none;color:#1565c0;cursor:pointer;padding:0;text-decoration:underline;font:inherit}
.admin-table a{color:#1565c0;text-decoration:none}
.admin-table a:hover{text-decoration:underline}

@media(max-width:820px){
  .hero h1{font-size:1.5rem}
  .nav-toggle{display:block}
  .main-nav ul{display:none;position:absolute;top:100%;left:0;right:0;background:var(--primary);flex-direction:column;padding:8px}
  .main-nav ul.open{display:flex}
  .offer-module{flex-direction:column}
  .contact{grid-template-columns:1fr}
}