/* === Base === */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Segoe UI',-apple-system,sans-serif;background:linear-gradient(135deg,#0a0a1a 0%,#1a1a3a 50%,#0f1f2f 100%);color:#c8d6e5;line-height:1.6;min-height:100vh}

/* === Banner === */
.demo-banner{background:linear-gradient(135deg,#e67e00,#f0a030);color:#fff;text-align:center;padding:8px;font-size:.85rem;font-weight:600}

/* === Navbar === */
.navbar{background:rgba(10,20,40,.7);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:.8rem 1.5rem;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid rgba(100,180,255,.08);position:sticky;top:0;z-index:1000}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff}
.brand h1{font-size:1.15rem;color:#e0e8f0}
.logo{width:36px;height:36px;background:linear-gradient(135deg,#00bcd4,#0088cc);border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:16px;color:#fff}
.nav-links{display:flex;gap:3px;flex-wrap:wrap}
.nav-links a{color:rgba(200,214,229,.7);text-decoration:none;padding:7px 14px;border-radius:8px;font-size:.84rem;font-weight:500;transition:.2s}
.nav-links a:hover{background:rgba(100,180,255,.1);color:#fff}
.nav-logout{color:rgba(255,150,150,.7) !important}
.nav-logout:hover{color:#ff6b6b !important;background:rgba(255,100,100,.1) !important}

/* === Container === */
.container{max-width:1200px;margin:0 auto;padding:1.5rem}

/* === Glass Cards === */
.card,.glass{background:rgba(20,30,60,.5);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-radius:16px;padding:1.5rem;margin-bottom:1.5rem;border:1px solid rgba(100,180,255,.1);box-shadow:0 8px 32px rgba(0,0,0,.25)}
.card-title{color:#e0e8f0;font-size:1rem;margin-bottom:1rem;font-weight:600}

/* === Stats === */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.2rem;margin-bottom:1.5rem}
.stat-card{background:rgba(20,30,60,.4);backdrop-filter:blur(12px);border-radius:14px;padding:1.2rem;border:1px solid rgba(100,180,255,.06);display:flex;align-items:center;gap:1rem}
.stat-icon{width:50px;height:50px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
.stat-card h3{font-size:1.25rem;font-weight:700;color:#fff}
.stat-card p{font-size:.8rem;color:rgba(200,214,229,.5);margin:0}

/* === Forms === */
label{display:block;font-weight:600;margin-bottom:.4rem;font-size:.85rem;color:rgba(200,214,229,.7)}
.form-control{width:100%;padding:10px 14px;border:1px solid rgba(100,180,255,.15);border-radius:8px;font-size:.95rem;transition:.2s;font-family:inherit;background:rgba(10,20,40,.5);color:#e0e8f0}
.form-control:focus{outline:none;border-color:rgba(0,188,212,.5);box-shadow:0 0 0 3px rgba(0,188,212,.15);background:rgba(10,20,40,.7)}
.form-control::placeholder{color:rgba(200,214,229,.25)}
textarea.form-control{resize:vertical;min-height:60px}
.form-group{margin-bottom:1rem}
.form-row{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.form-container{max-width:520px;margin:0 auto}
.flex-1{flex:1;min-width:200px}
.flex-2{flex:2;min-width:250px}
.input-row{display:flex}
.input-prefix{background:rgba(0,188,212,.15);color:#00bcd4;padding:10px 14px;border:1px solid rgba(100,180,255,.15);border-right:none;border-radius:8px 0 0 8px;font-weight:700}
.input-row .form-control{border-radius:0 8px 8px 0}
.checkbox-row{display:flex;flex-wrap:wrap;gap:12px}
.check-label{font-weight:400;font-size:.82rem;color:rgba(200,214,229,.6);cursor:pointer;display:flex;align-items:center;gap:5px}

/* === Buttons === */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 18px;border:none;border-radius:8px;font-size:.9rem;font-weight:600;cursor:pointer;transition:.2s;text-decoration:none;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,#00bcd4,#0088cc);color:#fff}
.btn-primary:hover{box-shadow:0 4px 20px rgba(0,188,212,.3);transform:translateY(-1px)}
.btn-success{background:linear-gradient(135deg,#00c853,#00a040);color:#fff}
.btn-danger{background:linear-gradient(135deg,#ff5252,#d32f2f);color:#fff}
.btn-outline{background:transparent;color:#00bcd4;border:1px solid rgba(0,188,212,.4)}
.btn-outline:hover{background:rgba(0,188,212,.1)}
.btn-sm{padding:6px 14px;font-size:.8rem}
.btn-lg{padding:14px 28px;font-size:1.05rem}
.btn-full{width:100%;padding:12px}
.btn:disabled{opacity:.4;cursor:not-allowed}
.btn-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}

/* === Tables === */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.85rem}
thead th{background:rgba(0,188,212,.08);color:#00bcd4;padding:10px 12px;text-align:left;font-weight:600;font-size:.78rem;text-transform:uppercase;white-space:nowrap;border-bottom:1px solid rgba(100,180,255,.08)}
tbody td{padding:10px 12px;border-bottom:1px solid rgba(100,180,255,.04);vertical-align:middle;color:#c8d6e5}
tbody tr:hover{background:rgba(100,180,255,.03)}
.td-actions{white-space:nowrap;display:flex;gap:4px}
.td-actions form{display:inline}

/* === Badges === */
.badge{display:inline-block;padding:4px 12px;border-radius:50px;font-size:.73rem;font-weight:600}
.badge-lg{font-size:1rem;padding:10px 24px}
.badge-pending{background:rgba(255,193,7,.12);color:#ffd54f}
.badge-success{background:rgba(0,200,83,.12);color:#69f0ae}
.badge-cancelled{background:rgba(255,82,82,.12);color:#ff8a80}
.badge-expired{background:rgba(200,214,229,.08);color:rgba(200,214,229,.4)}

/* === Info Table === */
.info-table{margin-bottom:1rem}
.info-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid rgba(100,180,255,.04)}
.info-row:last-child{border-bottom:none}
.info-label{color:rgba(200,214,229,.45);font-size:.85rem}
.info-value{color:#e0e8f0;font-size:.85rem}

/* === Status Icons === */
.status-icon{width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1rem;font-size:2.5rem}
.status-icon.success{background:rgba(0,200,83,.1);color:#69f0ae;box-shadow:0 0 40px rgba(0,200,83,.15)}
.status-icon.pending{background:rgba(255,193,7,.1);color:#ffd54f;box-shadow:0 0 40px rgba(255,193,7,.15)}
.status-icon.failed{background:rgba(255,82,82,.1);color:#ff8a80;box-shadow:0 0 40px rgba(255,82,82,.15)}

/* === Flash === */
.flash{position:fixed;top:70px;right:15px;z-index:9999;padding:14px 18px;border-radius:12px;font-size:.88rem;display:flex;align-items:center;gap:12px;min-width:280px;max-width:500px;animation:slideIn .3s;backdrop-filter:blur(20px)}
.flash-success{background:rgba(0,200,83,.15);color:#69f0ae;border:1px solid rgba(0,200,83,.25)}
.flash-error{background:rgba(255,82,82,.15);color:#ff8a80;border:1px solid rgba(255,82,82,.25)}
.flash-info{background:rgba(0,188,212,.15);color:#4dd0e1;border:1px solid rgba(0,188,212,.25)}
.flash button{background:none;border:none;font-size:1.1rem;cursor:pointer;color:inherit;opacity:.7}

/* === Modal === */
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.6);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:10000}
.modal-box{background:rgba(15,25,50,.95);backdrop-filter:blur(20px);border-radius:20px;padding:2rem;max-width:550px;width:90%;border:1px solid rgba(100,180,255,.12);box-shadow:0 20px 60px rgba(0,0,0,.5)}
.modal-box h3{color:#e0e8f0}
.modal-sub{color:rgba(200,214,229,.5);font-size:.88rem;margin-bottom:1rem}
.modal-field{margin-bottom:1rem}
.modal-field label{font-size:.82rem;color:rgba(200,214,229,.4)}
.modal-value{font-weight:600;color:#e0e8f0}
.copyable{background:rgba(10,20,40,.5);border:1px solid rgba(100,180,255,.12);border-radius:8px;padding:10px 14px;cursor:pointer;word-break:break-all;font-size:.83rem;transition:.2s;color:#4dd0e1;position:relative}
.copyable:hover{border-color:#00bcd4;background:rgba(0,188,212,.05)}
.copy-hint{position:absolute;right:10px;top:50%;transform:translateY(-50%);font-size:.7rem;color:rgba(0,188,212,.5)}
.copyable.copied{border-color:#69f0ae;background:rgba(0,200,83,.05)}

/* === Code === */
.code-block{background:rgba(0,0,0,.35);border-radius:10px;padding:1rem;margin:.5rem 0;overflow-x:auto;border:1px solid rgba(100,180,255,.05)}
.code-block pre{color:#b0c4de;font-size:.8rem;font-family:'Fira Code',Consolas,monospace;margin:0;white-space:pre-wrap}
code{color:#4dd0e1;font-size:.85rem}
.code-sm{font-size:.75rem}

/* === Spinner === */
.spinner{width:36px;height:36px;border:3px solid rgba(100,180,255,.1);border-top-color:#00bcd4;border-radius:50%;animation:spin .8s linear infinite;margin:.5rem auto}

/* === Utility === */
.text-muted{color:rgba(200,214,229,.4)}
.text-danger{color:#ff8a80}
.text-center{text-align:center}
.text-sm{font-size:.82rem}
.mb-1{margin-bottom:1rem}
.mb-half{margin-bottom:.5rem}
.mt-1{margin-top:1rem}
.merchant-logo{max-height:50px;border-radius:8px;margin-top:.5rem;border:1px solid rgba(100,180,255,.1)}
h2{color:#e0e8f0;margin-bottom:1.5rem}

/* === Landing === */
.landing{min-height:80vh}
.hero{padding:5rem 0 3rem;text-align:center}
.hero-title{font-size:3rem;font-weight:800;line-height:1.2;background:linear-gradient(135deg,#4dd0e1,#69f0ae,#00bcd4);-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin-bottom:1rem}
.hero-sub{font-size:1.1rem;color:rgba(200,214,229,.55);margin-bottom:2rem;max-width:500px;margin-left:auto;margin-right:auto;line-height:1.8}
.hero-buttons{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1.5rem;padding:2rem 0}
.feature-card{background:rgba(20,30,60,.4);backdrop-filter:blur(12px);border-radius:16px;padding:1.5rem;border:1px solid rgba(100,180,255,.06);text-align:center;transition:.3s}
.feature-card:hover{background:rgba(20,30,60,.6);transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.3)}
.feature-icon{font-size:2rem;margin-bottom:.8rem}
.feature-card h3{color:#4dd0e1;margin-bottom:.5rem;font-size:.95rem}
.feature-card p{color:rgba(200,214,229,.4);font-size:.82rem}

/* === Animations === */
@keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}
@keyframes spin{to{transform:rotate(360deg)}}

/* === Responsive === */
@media(max-width:768px){
  .navbar{flex-direction:column;gap:.8rem}
  .nav-links{width:100%;justify-content:center}
  .container{padding:1rem}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .hero-title{font-size:2rem}
  .form-row{flex-direction:column}
  .flex-1,.flex-2{min-width:100%}
  .modal-box{width:95%;padding:1.5rem}
}
@media(max-width:480px){.stats-grid{grid-template-columns:1fr}.hero-title{font-size:1.7rem}}

/* === Payment Page === */
.merchant-header{margin-bottom:1.5rem}
.merchant-logo-lg{max-height:64px;border-radius:12px;margin-bottom:8px;border:1px solid rgba(100,180,255,.1)}
.merchant-title{font-size:1.5rem;color:#e0e8f0;font-weight:700}
.payment-card{padding:2rem}
.payment-amount{font-size:2.5rem;font-weight:800;color:#4dd0e1;margin:.5rem 0}
.payment-sub{font-size:.85rem;color:rgba(200,214,229,.45);margin-bottom:1rem}
.qr-frame{background:#ffffff;border-radius:14px;padding:14px;display:inline-block;margin:1rem 0;box-shadow:0 4px 20px rgba(0,0,0,.3)}
.qr-img{width:260px;height:260px;display:block}
.notice{border-radius:10px;padding:12px;font-size:.88rem;margin:10px 0}
.notice-info{background:rgba(0,188,212,.08);border:1px solid rgba(0,188,212,.2);color:#4dd0e1}
.notice-warn{background:rgba(255,82,82,.08);border:1px solid rgba(255,82,82,.2);color:#ff8a80;font-weight:600;font-size:1.05rem}
.timer-label{color:rgba(200,214,229,.4);font-size:.82rem;margin-top:8px}
.timer{font-size:1.8rem;font-weight:700;color:#ff8a80;font-variant-numeric:tabular-nums}
.payment-info{text-align:left;margin-top:1rem;border-top:1px solid rgba(100,180,255,.08);padding-top:1rem}
.payment-actions{display:flex;gap:10px;justify-content:center;margin:1.2rem 0;flex-wrap:wrap}