:root{--bg-page:#020813;--bg-panel:#061121;--bg-input:#0b192c;--border-blue:#1e3a8a;--border-gold:#ca8a04;--border-green:#15803d;--text-gold:#facc15;--text-green:#4ade80;--text-blue:#60a5fa;--text-purple:#c084fc;--text-white:#f8fafc;--text-muted:#94a3b8}body{background-color:var(--bg-page);background-image:radial-gradient(circle at top center,#0a192f 0%,#020813 100%);color:var(--text-white);font-family:'Tiro Bangla',serif!important;margin:0;padding:0;min-height:100vh}*{box-sizing:border-box;font-family:'Tiro Bangla',serif!important}.premium-navbar{background-color:#061121;border-bottom:2px solid var(--border-gold);position:sticky;top:0;z-index:1000;box-shadow:0 4px 20px rgba(0,0,0,.7)}.nav-container{max-width:1250px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:10px 15px;position:relative}.nav-logo{display:flex;align-items:center;gap:12px;color:var(--text-gold);text-decoration:none;font-size:24px;font-weight:700;letter-spacing:1px;white-space:nowrap}.nav-logo img{height:45px;border-radius:4px;border:1px solid var(--border-gold)}.nav-links{display:flex;gap:5px;align-items:center}.nav-links a{color:var(--text-white);text-decoration:none;font-size:17px;padding:8px 14px;border-radius:6px;transition:.3s;border:1px solid transparent}.nav-links a:hover{background:rgba(202,138,4,.1);color:var(--text-gold);border-color:rgba(202,138,4,.5)}.nav-links a.active{background:var(--border-gold);color:#000;font-weight:700;box-shadow:0 0 10px rgba(202,138,4,.4)}.mobile-menu-btn{display:none;background:0 0;border:none;color:var(--text-gold);cursor:pointer;padding:5px}.mobile-menu-btn svg{width:32px;height:32px}.dashboard-wrapper{max-width:1250px;margin:0 auto;padding:40px 15px}.main-header{text-align:center;margin-bottom:40px}.main-header h3{color:var(--text-white);font-size:26px;margin:0;text-shadow:2px 2px 4px #000}.main-header h1{background:linear-gradient(to right,#fde047,#d97706,#fde047);-webkit-background-clip:text;-webkit-text-fill-color:transparent;font-size:52px;margin:5px 0 15px 0;font-weight:700;letter-spacing:2px;filter:drop-shadow(0 0 10px rgba(250,204,21,.2))}.subtitle-box{display:inline-block;border:1px solid var(--border-green);padding:8px 50px;color:var(--text-green);font-size:28px;position:relative;background:rgba(21,128,61,.1);margin-bottom:15px}.subtitle-box::after,.subtitle-box::before{content:'❖';position:absolute;top:50%;transform:translateY(-50%);color:var(--text-gold);font-size:18px}.subtitle-box::before{left:15px}.subtitle-box::after{right:15px}.main-header p{color:var(--text-muted);font-size:18px;margin:0;letter-spacing:1px}.grid-container{display:grid;grid-template-columns:280px 1fr 280px;gap:20px}.sidebar-box{border:1px solid #1e293b;border-radius:6px;background:var(--bg-panel);margin-bottom:20px;overflow:hidden}.graphic-box{height:220px;background:linear-gradient(rgba(2,8,19,.5),rgba(2,8,19,.9)),url(https://ainprokash.com/wp-content/uploads/2026/05/ana-gonda-calculator.png);background-size:cover;background-position:center;border:1px solid var(--border-gold);border-radius:6px;margin-bottom:20px;display:flex;align-items:center;justify-content:center;text-align:center;padding:20px}.graphic-box h4{color:var(--text-gold);font-size:24px;margin:0;text-shadow:0 0 10px #000}.sidebar-title{text-align:center;padding:12px;border-bottom:1px solid #1e293b;font-size:18px;color:var(--text-white);background:#0f172a}.unit-glance{display:flex;justify-content:space-between;padding:15px 10px;text-align:center}.unit-glance div span{color:var(--text-muted);font-size:13px;display:block;margin-bottom:5px}.unit-glance div strong{color:var(--text-white);font-size:18px}.green-info-box{border:1px solid var(--border-green);background:rgba(21,128,61,.1);border-radius:6px;padding:15px;margin:15px;color:var(--text-green);font-size:16px;line-height:1.8}.gold-info-box{border:1px solid var(--border-gold);background:rgba(202,138,4,.1);border-radius:6px;padding:12px;margin:15px;color:var(--text-gold);font-size:15px;text-align:center}.calc-panel{border:1px solid var(--border-blue);border-radius:8px;background:var(--bg-panel);margin-bottom:25px;overflow:hidden}.panel-heading{background:#0d1e36;color:var(--text-white);padding:12px 20px;font-size:20px;border-bottom:1px solid var(--border-blue)}.panel-body{padding:25px}.total-land-wrap{margin-bottom:25px;border-bottom:1px dashed #1e293b;padding-bottom:20px}.total-land-wrap label{display:block;color:var(--text-muted);font-size:16px;margin-bottom:8px}.total-land-wrap input{width:100%;background:var(--bg-input);border:1px solid #334155;color:var(--text-white);padding:12px;font-size:20px;border-radius:4px;outline:none;transition:.3s}.total-land-wrap input:focus{border-color:var(--border-blue)}.inputs-row{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:30px}.input-item{text-align:center}.input-item label{display:block;font-size:16px;margin-bottom:10px;font-weight:700}.premium-select{width:100%;background:var(--bg-input);border:1px solid #334155;color:var(--text-white);padding:12px 8px;font-size:18px;text-align:center;border-radius:4px;outline:none;cursor:pointer;transition:.3s;appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 8px center;background-size:14px}.premium-select:focus{border-color:var(--border-blue)}.lbl-ana{color:var(--text-gold)}.lbl-gonda{color:var(--text-green)}.lbl-kora{color:var(--text-blue)}.lbl-kranti{color:var(--text-purple)}.lbl-til{color:var(--text-gold)}.btn-row{display:flex;gap:15px;justify-content:center}.action-btn{background:0 0;color:var(--text-white);border:1px solid #334155;padding:12px 24px;font-size:18px;border-radius:4px;cursor:pointer;display:flex;align-items:center;gap:8px;transition:.3s}.btn-calc{border-color:var(--border-blue);background:rgba(30,58,138,.2)}.btn-calc:hover{background:var(--border-blue)}.btn-reset{border-color:var(--border-green);background:rgba(21,128,61,.1)}.btn-reset:hover{background:var(--border-green)}#result-area{display:none;animation:fadeIn .4s ease}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.res-top-row{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;margin-bottom:15px}.res-box{border:1px solid #1e293b;background:var(--bg-input);text-align:center;padding:15px 5px;border-radius:6px}.res-box .lbl{font-size:14px;margin-bottom:10px}.res-box .val{font-size:24px;font-weight:700;color:var(--text-white);margin-bottom:5px}.res-box .unit{font-size:14px;color:var(--text-muted)}.c-blue{color:var(--text-blue)!important}.c-gold{color:var(--text-gold)!important}.c-green{color:var(--text-green)!important}.c-purple{color:var(--text-purple)!important}.res-mid-row{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-bottom:15px}.big-res-box{border:1px solid;background:var(--bg-input);border-radius:6px;padding:20px;text-align:center;display:flex;flex-direction:column;justify-content:center}.big-res-box .lbl{font-size:18px;margin-bottom:5px}.big-res-box .val{font-size:32px;font-weight:700}.box-blue{border-color:var(--border-blue);background:rgba(59,130,246,.1)}.box-blue .lbl,.box-blue .val{color:var(--text-blue)}.box-gold{border-color:var(--border-gold)}.box-gold .lbl,.box-gold .val{color:var(--text-gold)}.box-green{border-color:var(--border-green)}.box-green .lbl,.box-green .val{color:var(--text-green)}.res-bottom-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.right-table{width:100%;color:var(--text-muted);border-collapse:collapse;margin-bottom:5px}.right-table td{padding:8px 0;font-size:16px}.right-table td:first-child{padding-left:20px}.right-table td:last-child{text-align:right;color:var(--text-white);padding-right:20px}.rules-list{list-style:none;padding:0 20px 15px 20px;margin:0}.rules-list li{position:relative;padding-left:25px;margin-bottom:12px;font-size:16px;color:var(--text-muted)}.rules-list li::before{content:'✅';position:absolute;left:0;font-size:14px;top:2px}.badge-seal{background:linear-gradient(45deg,#ca8a04,#facc15);color:#000;margin:15px;padding:15px;border-radius:6px;display:flex;align-items:center;gap:15px}.badge-seal .seal-icon{background:#fff;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px}.badge-seal div strong{display:block;font-size:18px;margin-bottom:3px}.badge-seal div span{font-size:14px;opacity:.8}.footer-note{text-align:center;color:var(--text-muted);font-size:14px;margin-top:30px;border-top:1px solid #1e293b;padding-top:15px}@media (max-width:992px){.grid-container{grid-template-columns:1fr}.main-header h1{font-size:36px}}@media (max-width:768px){.nav-container{padding:10px}.mobile-menu-btn{display:block}.nav-links{display:none;position:absolute;top:100%;left:0;width:100%;background:#061121;flex-direction:column;padding:10px 0;border-bottom:2px solid var(--border-gold);box-shadow:0 10px 20px rgba(0,0,0,.5);z-index:999}.nav-links.active{display:flex;animation:slideDown .3s ease}@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.nav-links a{text-align:center;padding:15px;border-radius:0;border-bottom:1px dashed #1e293b;font-size:18px}.nav-links a:last-child{border-bottom:none}.nav-links a.active{box-shadow:none}.dashboard-wrapper{padding:25px 10px}.main-header h1{font-size:30px}.subtitle-box{font-size:20px;padding:6px 30px}.panel-body{padding:15px}.inputs-row{grid-template-columns:repeat(3,1fr);gap:10px}.res-top-row{grid-template-columns:repeat(3,1fr);gap:8px}.res-box .val{font-size:20px}.res-box .lbl{font-size:12px}.res-mid-row{grid-template-columns:1fr}.res-bottom-grid{grid-template-columns:repeat(2,1fr);gap:10px}}@media (max-width:480px){.inputs-row{grid-template-columns:repeat(2,1fr)}.inputs-row .input-item:last-child{grid-column:span 2}.res-top-row{grid-template-columns:repeat(2,1fr)}.res-top-row .res-box:last-child{grid-column:span 2}.btn-row{flex-direction:column}}