:root{--bg:#090d18;--panel:#111827;--panel2:#182235;--line:#263247;--text:#f4f7fb;--muted:#93a0b5;--red:#e21b2d;--blue:#4f8cff;--green:#20c78a;--amber:#f5a524;--danger:#ff5d6c;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 15% 0,#1b2741 0,transparent 35%),var(--bg);color:var(--text);font-family:Inter,"Noto Sans Khmer","Segoe UI",sans-serif}button,input,select,textarea{font:inherit}.muted{color:var(--muted)}.logo{display:inline-flex;background:var(--red);color:#fff;padding:10px 14px;border-radius:10px;font-weight:900;font-size:21px;letter-spacing:-1px}.button{border:0;border-radius:11px;padding:12px 17px;background:linear-gradient(135deg,var(--blue),#3564d4);color:#fff;text-decoration:none;font-weight:750;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px}.button.secondary{background:var(--panel2);border:1px solid var(--line)}.button.danger{background:linear-gradient(135deg,#ef4455,#b91c36)}.button.small{padding:8px 11px;font-size:12px}.landing{width:min(1100px,calc(100% - 32px));margin:auto;min-height:100vh;display:grid;align-content:center;padding:60px 0}.landing h1{font-size:clamp(42px,8vw,82px);line-height:.98;letter-spacing:-.055em;max-width:850px;margin:24px 0}.landing>p{font-size:18px;line-height:1.8;max-width:680px}.landing-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:70px}.feature{padding:22px;background:rgba(17,24,39,.7);border:1px solid var(--line);border-radius:var(--radius)}.feature h3{margin:0 0 9px}.app-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;border-right:1px solid var(--line);background:rgba(9,13,24,.88);backdrop-filter:blur(18px);padding:22px 16px}.profile{margin:24px 0;padding:16px;background:var(--panel);border:1px solid var(--line);border-radius:14px}.profile strong,.profile span{display:block}.profile span{font-size:12px;color:var(--muted);margin-top:5px}.nav{display:grid;gap:7px}.nav-item{width:100%;border:0;background:transparent;color:var(--muted);padding:12px 14px;border-radius:11px;text-align:left;cursor:pointer;font-weight:700}.nav-item:hover,.nav-item.active{background:var(--panel2);color:#fff}.nav-item.admin-only{display:none}.sidebar-bottom{position:absolute;left:16px;right:16px;bottom:20px}.content{padding:30px;max-width:1400px;width:100%;margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px}.topbar h1{margin:0;font-size:26px}.credit-pill{padding:10px 15px;border-radius:999px;background:#182c27;color:#7ae7bd;border:1px solid #245342;font-weight:800}.view{display:none}.view.active{display:block}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.card{background:rgba(17,24,39,.9);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.stat small{color:var(--muted)}.stat strong{display:block;font-size:30px;margin-top:8px}.panel{background:rgba(17,24,39,.94);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-top:18px}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.panel h2{margin:0;font-size:19px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.form-grid .wide{grid-column:1/-1}label{display:grid;gap:7px;color:var(--muted);font-size:13px;font-weight:700}input,select,textarea{width:100%;background:#0c1321;border:1px solid var(--line);color:var(--text);border-radius:11px;padding:12px;outline:none}input:focus,select:focus,textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(79,140,255,.13)}table{width:100%;border-collapse:collapse;font-size:13px}th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.08em}.table-wrap{overflow:auto}.badge{display:inline-flex;padding:5px 9px;border-radius:999px;font-size:11px;font-weight:800;background:#253047}.badge-paid,.badge-active{background:#173c31;color:#6fe1b3}.badge-pending{background:#3d3118;color:#ffd275}.badge-failed,.badge-expired,.badge-blocked,.badge-invalid{background:#421f29;color:#ff9baa}.badge-exhausted{background:#3d3118;color:#ffd275}.modal{position:fixed;inset:0;display:none;place-items:center;padding:20px;background:rgba(1,4,10,.76);backdrop-filter:blur(8px);z-index:50}.modal.active{display:grid}.modal-card{width:min(520px,100%);max-height:92vh;overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:0 30px 90px #000}.modal-card.large{width:min(760px,100%)}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.modal-head h2{margin:0}.icon-btn{border:0;background:var(--panel2);color:#fff;width:36px;height:36px;border-radius:10px;cursor:pointer}.qr-preview{display:block;width:min(340px,90%);aspect-ratio:1;margin:15px auto;background:#fff;border-radius:16px;padding:10px}.payment-status{text-align:center;padding:10px;font-weight:800;color:var(--amber)}.toast-wrap{position:fixed;right:18px;top:18px;z-index:100;display:grid;gap:9px}.toast{padding:13px 16px;border-radius:12px;background:var(--panel2);border:1px solid var(--line);box-shadow:0 12px 35px #0008}.toast.success{border-color:#247b5c}.toast.error{border-color:#9f3344}.login-card{width:min(440px,100%)}.secret-box{word-break:break-all;background:#080c14;border:1px dashed #41516d;border-radius:11px;padding:13px;font-family:monospace;color:#b8d0ff}.docs pre{white-space:pre-wrap;word-break:break-word;background:#080c14;border:1px solid var(--line);border-radius:12px;padding:15px;color:#a9c5ff}.install-page{min-height:100vh;display:grid;place-items:center;padding:30px}.install-card{width:min(860px,100%);background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:28px}.install-card h1{font-size:32px}.alert{padding:12px;border-radius:10px;background:#421f29;color:#ffb1bb;margin:12px 0}.success-panel{text-align:center}.secret-output{display:block;padding:16px;margin:18px 0;background:#080c14;border:1px dashed var(--blue);border-radius:12px;word-break:break-all}.checkout-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:#eef2f7;color:#172033}.checkout-card{width:min(480px,100%);background:#fff;border-radius:24px;overflow:hidden;box-shadow:0 24px 70px #1c2f4b26}.khqr-head{background:var(--red);color:#fff;padding:20px 25px;display:flex;justify-content:space-between;align-items:center}.khqr-head strong{font-size:27px}.checkout-body{text-align:center;padding:25px}.checkout-body h1{margin:4px 0;font-size:23px}.checkout-amount{font-size:38px;font-weight:900;margin:18px 0}.checkout-amount span{font-size:15px;color:#657186}.checkout-qr{width:min(330px,90%);aspect-ratio:1}.checkout-note{font-size:12px;color:#6c7787;line-height:1.7}.checkout-status{display:inline-flex;padding:10px 15px;border-radius:999px;background:#fff7df;color:#8a6100;font-weight:800;margin-top:12px}.checkout-status.paid{background:#e6f9f1;color:#087a50}.checkout-status.failed,.checkout-status.expired{background:#ffebee;color:#b1263a}@media(max-width:960px){.app-shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto;border-right:0;border-bottom:1px solid var(--line)}.nav{grid-template-columns:repeat(3,1fr)}.sidebar-bottom{position:static;margin-top:12px}.cards{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:1fr}.content{padding:20px}}@media(max-width:600px){.cards,.form-grid{grid-template-columns:1fr}.form-grid .wide{grid-column:auto}.nav{grid-template-columns:repeat(2,1fr)}.content{padding:16px}.landing h1{font-size:48px}.topbar{align-items:flex-start;gap:12px}.credit-pill{font-size:12px}.panel{padding:16px}.checkout-page{padding:0}.checkout-card{border-radius:0;min-height:100vh}}