:root{--navy:#0b3562;--navy2:#072744;--orange:#f47718;--bg:#f5f7fb;--text:#1d2939;--line:#e4e9f0;--ok:#176b3a;--danger:#9b1c1c}
*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;color:var(--text);line-height:1.6}.container{width:min(1160px,calc(100% - 34px));margin:auto}a{text-decoration:none;color:inherit}
header{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);z-index:10}.nav{height:78px;display:flex;align-items:center;justify-content:space-between}.logo{width:180px;height:62px;object-fit:contain}.nav-links{display:flex;gap:20px;align-items:center;font-weight:700}
.btn{border:0;border-radius:10px;padding:13px 18px;background:var(--orange);color:#fff;font-weight:800;cursor:pointer;display:inline-flex;justify-content:center}.btn.dark{background:var(--navy)}.btn.light{background:#eef2f7;color:var(--navy)}
.hero{padding:95px 0;background:linear-gradient(90deg,rgba(255,255,255,.98),rgba(255,255,255,.72)),url('https://images.unsplash.com/photo-1600585154340-be6161a56a0c?auto=format&fit=crop&w=1800&q=85') center/cover}.hero-copy{max-width:700px}.hero h1{font-size:clamp(2.6rem,5vw,4.7rem);line-height:1.03;color:var(--navy2)}.hero h1 span{color:var(--orange)}.eyebrow{color:var(--orange);font-weight:800;text-transform:uppercase}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
section{padding:72px 0}.soft{background:var(--bg)}.section-head{text-align:center;max-width:720px;margin:0 auto 34px}.section-head h2{font-size:clamp(2rem,3vw,3rem);color:var(--navy2)}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.cards article,.calculator,.panel{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;box-shadow:0 12px 28px rgba(11,53,98,.08)}
.grid,.admin-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.full{grid-column:1/-1}label{font-weight:700}input,select,textarea{width:100%;display:block;margin-top:7px;padding:12px;border:1px solid #d5dde7;border-radius:9px;font:inherit}.check{display:flex;align-items:center;gap:8px}.check input{width:auto;margin:0}.hidden{display:none!important}
.notice{padding:13px;border-radius:9px;margin:15px 0;font-weight:700}.ok{background:#eaf8ef;color:var(--ok)}.error{background:#fff0f0;color:var(--danger)}
.summary{margin-top:20px;border:1px solid var(--line);border-radius:12px;padding:18px}.summary>div{display:flex;justify-content:space-between;padding:9px 0;border-bottom:1px solid var(--line)}.summary .total{font-size:20px;color:var(--navy)}footer{background:var(--navy2);color:#fff;padding:30px 0}
.login-body{min-height:100vh;background:var(--bg);display:grid;place-items:center}.login-card{width:min(420px,calc(100% - 30px));background:#fff;padding:28px;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.15)}
.admin-body{background:var(--bg)}.admin-top{background:var(--navy2);color:#fff;padding:14px 0}.admin-top .container{display:flex;justify-content:space-between;align-items:center}.tabs{display:flex;gap:10px;flex-wrap:wrap;margin:25px 0}.panel{margin-bottom:22px}.admin-grid{grid-template-columns:repeat(3,1fr)}.prices{grid-template-columns:repeat(3,1fr)}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:10px;border-bottom:1px solid var(--line)}.custom-row{display:grid;grid-template-columns:2fr 1fr 1fr;gap:10px;margin-bottom:10px}
@media(max-width:780px){.nav-links{display:none}.cards,.grid,.admin-grid,.prices{grid-template-columns:1fr}.full{grid-column:auto}.custom-row{grid-template-columns:1fr}}