:root{--nav:#0d2238;--nav2:#102d49;--blue:#087cf0;--orange:#ff7a1a;--bg:#f4f7fb;--line:#dce4ee;--text:#142033;--muted:#667085;--side:230px}*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;background:var(--bg);color:var(--text)}input,select,textarea{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;margin:5px 0 12px;background:#fff}.btn{display:inline-block;border:0;border-radius:8px;padding:11px 16px;background:var(--blue);color:#fff;text-decoration:none;cursor:pointer}.btn.alt{background:#fff;color:var(--text);border:1px solid var(--line)}.btn.danger{background:#fff;color:#b42318;border:1px solid #f3c6c3}.app{display:grid;grid-template-columns:var(--side) 1fr;min-height:100vh;transition:.2s}.app.collapsed{--side:74px}.side{background:linear-gradient(180deg,var(--nav),#0b1d30);color:#fff;padding:18px 14px;position:sticky;top:0;height:100vh;overflow:hidden}.side-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.brand{font-size:22px;font-weight:800;white-space:nowrap;display:flex;gap:8px}.brand b{color:var(--orange)}.brand-icon{font-size:20px}.collapse{border:1px solid #ffffff2d;background:#ffffff0d;color:#fff;border-radius:7px;width:30px;height:30px;cursor:pointer;font-size:20px}.side hr{border:0;border-top:1px solid #ffffff20;margin:14px 0}.side nav{height:calc(100vh - 100px);display:flex;flex-direction:column}.side a{display:flex;align-items:center;gap:10px;color:#dce7f1;text-decoration:none;padding:11px;border-radius:8px;margin:4px 0;white-space:nowrap}.side a:hover,.side a.active{background:#ffffff16;color:#fff}.side a.active{box-shadow:inset 3px 0 var(--orange)}.side .ico{width:22px;text-align:center;font-size:17px}.side .logout{margin-top:auto}.collapsed .brand-text,.collapsed .navtxt{display:none}.collapsed .brand{justify-content:center}.collapsed .side-head{display:block;text-align:center}.collapsed .collapse{margin-top:12px;transform:rotate(180deg)}.main{padding:24px;min-width:0}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;gap:15px}.top h1{margin:0}.userbox{white-space:nowrap}.userbox span{color:var(--muted)}.mobile-menu{display:none;border:0;background:var(--nav);color:#fff;border-radius:8px;padding:9px 12px}.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.section{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px;margin-bottom:16px}.section h3{margin-top:0}.row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.mode{display:flex;gap:12px;align-items:stretch}.mode label{display:flex;gap:7px;align-items:center;border:1px solid var(--line);border-radius:9px;padding:12px 14px;min-width:240px}.mode input{width:auto;margin:0}.table-wrap{overflow:auto}.table{width:100%;border-collapse:collapse}.table th,.table td{border-bottom:1px solid var(--line);padding:9px;text-align:left}.metric{background:#fff;border:1px solid var(--line);border-radius:10px;padding:15px}.metric strong{font-size:24px;display:block}.ok{background:#eaf8ef!important;border-left:5px solid #2bad60!important}.warn{background:#fff7e7;border-left:5px solid #f0a020}.notice{background:#eef6ff;border:1px solid #cde3ff;border-radius:9px;padding:12px;margin-bottom:15px}.error{color:#b42318}.small{font-size:12px;color:var(--muted)}.badge{display:inline-block;padding:4px 8px;border-radius:20px;background:#eef2f6;font-size:12px}.badge.success{background:#e7f8ed;color:#187a3b}.badge.danger{background:#feeceb;color:#b42318}.actions{display:flex;gap:6px;flex-wrap:wrap}.result-hero{background:linear-gradient(135deg,#fff,#f7fbff);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:16px}.calc-breakdown{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.calc-breakdown>div{background:#f7f9fc;border-radius:9px;padding:12px}.login{min-height:100vh;display:grid;place-items:center;background:linear-gradient(#071827b8,#0d2238d9),url('login-bg.png') center/cover no-repeat fixed;padding:20px}.card{background:#fff;border-radius:16px;box-shadow:0 12px 35px #0004;padding:28px}.login .card{width:min(430px,94vw)}.login .brand{font-size:25px}.login-sub{margin-top:8px;color:#475467}.login-foot{margin-top:14px}.login button{font-size:15px}
@media(max-width:900px){.app{grid-template-columns:1fr}.side{position:fixed;z-index:30;left:-250px;width:230px;transition:.2s}.side.mobile-open{left:0}.main{padding:16px}.mobile-menu{display:block}.top{justify-content:flex-start}.top>div:first-of-type{flex:1}.row,.grid{grid-template-columns:1fr 1fr}.mode{flex-direction:column}.mode label{min-width:0}.collapse{display:none}.userbox{font-size:13px}.calc-breakdown{grid-template-columns:1fr 1fr}}@media(max-width:560px){.row,.grid,.calc-breakdown{grid-template-columns:1fr}.top h1{font-size:23px}.userbox{display:none}.main{padding:12px}.section{padding:14px}}