/* Buttons */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:14px 28px; border-radius:var(--radius-lg); border:none;
  font-size:16px; font-weight:600; cursor:pointer; transition:all 0.2s;
  text-decoration:none; color:#fff; white-space:nowrap;
}
.btn:active { transform:scale(0.98); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 4px 15px rgba(255,107,53,0.3);
}
.btn-primary:hover { transform:translateY(-2px); box-shadow:0 6px 20px rgba(255,107,53,0.4); }
.btn-secondary {
  background: var(--surface); border:1px solid var(--border); color:var(--text-primary);
}
.btn-gk {
  background: var(--surface-elevated);
  border: 2px dashed var(--accent);
  color: var(--accent);
}
.btn:disabled { opacity:0.5; cursor:not-allowed; }
.btn-lg { padding:16px 40px; font-size:18px; }
.btn-sm { padding:10px 18px; font-size:14px; }
.btn-outline-warning {
  background:transparent; border:1px solid var(--accent,#FFD166); color:var(--accent,#FFD166);
}
.btn-outline-warning:hover { background:rgba(255,209,102,0.12); }
.btn-danger {
  background:var(--danger,#EF476F); border:1px solid var(--danger,#EF476F); color:#fff;
}
.btn-danger:hover { background:#d63a5a; transform:translateY(-2px); }
.btn-outline-danger {
  background:transparent; border:1px solid var(--danger,#EF476F); color:var(--danger,#EF476F);
}
.btn-outline-danger:hover { background:rgba(239,71,111,0.12); }
.btn-outline-success {
  background:transparent; border:1px solid var(--success,#06D6A0); color:var(--success,#06D6A0);
}
.btn-outline-success:hover { background:rgba(6,208,160,0.12); }
.btn-outline-primary {
  background:transparent; border:1px solid var(--primary,#FF6B35); color:var(--primary,#FF6B35);
}
.btn-outline-primary:hover { background:rgba(255,107,53,0.12); }

/* Inputs */
.input, .form-input {
  width:100%; padding:14px 18px; border-radius:var(--radius);
  border:1px solid var(--border); background:var(--surface);
  color:var(--text-primary); font-size:16px; outline:none; transition:0.2s;
  box-sizing:border-box;
}
.input:focus, .form-input:focus { border-color:var(--primary); box-shadow:0 0 0 3px rgba(255,107,53,0.15); }
.input::placeholder, .form-input::placeholder { color:var(--text-secondary); }

.form-group { margin-bottom:16px; }
.form-group label { display:block; margin-bottom:6px; font-size:14px; font-weight:600; color:var(--text-primary); }
.form-group .form-input, .form-group input, .form-group select, .form-group textarea { width:100%; }
textarea.form-input { min-height:80px; resize:vertical; }
select.form-input { appearance:auto; }

/* Tab panels (Wallet etc.) */
.wallet-tab-panel { display:none; }
.wallet-tab-panel.active { display:block; }

/* Transaction & product lists */
.transaction-item { display:flex; align-items:center; gap:14px; padding:14px 0; border-bottom:1px solid var(--border); margin-bottom:12px; }
.transaction-item:last-child { border-bottom:none; margin-bottom:0; }
.tx-info { flex:1; }
.tx-desc { font-weight:600; font-size:15px; }
.tx-date { font-size:12px; color:var(--text-secondary); margin-top:2px; }
.tx-amount { font-weight:700; font-size:16px; }
.products-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(200px,1fr)); gap:16px; }
.product-card { text-align:center; padding:24px 16px; }
.product-price { font-size:24px; font-weight:800; color:var(--accent); margin:12px 0; }

/* Alerts */
.alert { padding:14px 18px; border-radius:var(--radius); font-size:14px; margin-bottom:12px; }
.alert-success { background:rgba(6,208,160,0.12); border:1px solid var(--success); color:var(--success); }
.alert-danger { background:rgba(239,71,111,0.12); border:1px solid var(--danger); color:var(--danger); }
.alert-warning { background:rgba(255,209,102,0.12); border:1px solid var(--accent); color:var(--accent); }
.alert-info { background:rgba(0,78,137,0.12); border:1px solid var(--secondary); color:var(--secondary); }

/* Badges */
.badge { display:inline-block; padding:4px 10px; border-radius:50px; font-size:12px; font-weight:600; }
.badge.bg-success { background:var(--success,#2ecc71); color:#fff; }
.badge.bg-warning { background:var(--warning,#f39c12); color:#fff; }
.badge.bg-danger { background:var(--danger,#e74c3c); color:#fff; }

/* Cards */
.card {
  background:var(--surface); border-radius:var(--radius); padding:20px;
  border:1px solid var(--border); box-shadow:var(--shadow); transition:0.2s;
}
.card:hover { transform:translateY(-2px); box-shadow:0 8px 30px rgba(0,0,0,0.25); }
.card-elevated {
  background:var(--surface-elevated); border:1px solid rgba(255,255,255,0.05);
}

/* GK Badge */
.gk-badge {
  display:inline-flex; align-items:center; gap:6px;
  background: linear-gradient(135deg, #2a2a4a, #1a1a2e);
  border: 2px solid var(--accent);
  border-radius: 50px; padding: 6px 14px;
  font-weight:700; color:var(--accent); font-size:14px;
  box-shadow: 0 0 10px rgba(255,209,102,0.15);
}
.gk-badge svg { width:18px; height:18px; animation: float 3s ease-in-out infinite; }

/* TOP NAVBAR (Desktop) */
.top-nav {
  position:fixed; top:0; left:0; right:0; z-index:100;
  background: rgba(15,15,35,0.95); backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border); height:var(--nav-height);
}
.top-nav-inner {
  max-width: var(--max-width); margin:0 auto; height:100%;
  display:flex; align-items:center; justify-content:space-between;
  padding:0 24px;
}
.top-nav-logo {
  display:flex; align-items:center; gap:10px;
  font-weight:800; font-size:20px; color:var(--text-primary);
  text-decoration:none;
}
.top-nav-links {
  display:flex; align-items:center; gap:32px;
}
.top-nav-links a {
  color:var(--text-secondary); text-decoration:none; font-size:15px; font-weight:500;
  transition:0.2s; position:relative;
}
.top-nav-links a:hover, .top-nav-links a.active { color:var(--primary); }
.top-nav-links a.active::after {
  content:''; position:absolute; bottom:-20px; left:0; right:0;
  height:3px; background:var(--primary); border-radius:2px;
}
.top-nav-actions { display:flex; align-items:center; gap:16px; }

/* BOTTOM NAV (Mobile only) */
.bottom-nav {
  position:fixed; bottom:0; left:0; right:0; z-index:100;
  background: rgba(15,15,35,0.95); backdrop-filter:blur(12px);
  border-top:1px solid var(--border); display:flex; align-items:center; justify-content:space-around;
  padding-bottom: env(safe-area-inset-bottom, 0px); height:70px;
}
.nav-item {
  display:flex; flex-direction:column; align-items:center; gap:4px;
  text-decoration:none; color:var(--text-secondary); font-size:11px; transition:0.2s;
  flex:1; padding:8px 0;
}
.nav-item.active { color:var(--primary); transform:translateY(-4px); }
.nav-item .nav-icon { font-size:22px; line-height:1; }
.nav-item--center { transform:translateY(-20px); }
.nav-item--center .nav-icon--main {
  width:60px; height:60px; border-radius:50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display:flex; align-items:center; justify-content:center;
  font-size:28px; box-shadow:0 6px 20px rgba(255,107,53,0.4);
  border:4px solid var(--bg);
}
.nav-badge {
  position:absolute; top:6px; right:20px;
  background:var(--danger); color:#fff; font-size:11px; font-weight:700;
  width:18px; height:18px; border-radius:50%; display:flex; align-items:center; justify-content:center;
}

/* Toast */
.toast-container {
  position:fixed; top:80px; left:50%; transform:translateX(-50%);
  width:90%; max-width:480px; z-index:200; display:flex; flex-direction:column; gap:8px;
  pointer-events:none;
}
.toast {
  background: var(--surface-elevated); backdrop-filter:blur(12px);
  border:1px solid var(--border); border-radius:var(--radius);
  padding:14px 18px; box-shadow:var(--shadow);
  display:flex; align-items:center; gap:10px; animation: slideDown 0.3s ease;
  pointer-events:auto;
}
.toast--success { border-color:var(--success); }
.toast--warning { border-color:var(--accent); }
.toast--error { border-color:var(--danger); }
@keyframes slideDown {
  from { transform:translateY(-20px); opacity:0; }
  to { transform:translateY(0); opacity:1; }
}

/* Modal */
.modal-overlay {
  position:fixed; inset:0; background:rgba(0,0,0,0.7); backdrop-filter:blur(4px);
  z-index:150; display:none; align-items:center; justify-content:center;
  padding:20px;
}
.modal-overlay.active { display:flex; }
.modal {
  background:var(--surface); border-radius:var(--radius-lg); width:100%; max-width:420px;
  padding:28px; border:1px solid var(--border); box-shadow:var(--shadow);
  animation: pop 0.25s ease;
}
.modal-title { font-size:22px; font-weight:700; margin-bottom:8px; }
.modal-text { color:var(--text-secondary); margin-bottom:20px; }
.modal-actions { display:flex; gap:12px; }

/* Progress / Skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-elevated) 50%, var(--surface) 75%);
  background-size: 200% 100%; animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

/* Toggle Switch */
.toggle { position:relative; width:48px; height:26px; border-radius:13px; background:var(--surface-elevated); cursor:pointer; transition:0.2s; border:1px solid var(--border); flex-shrink:0; }
.toggle::after { content:''; position:absolute; top:2px; left:2px; width:20px; height:20px; border-radius:50%; background:var(--text-secondary); transition:0.2s; }
.toggle.active { background:var(--primary); border-color:var(--primary); }
.toggle.active::after { left:24px; background:#fff; }

/* GK Cap Icon */
.gk-cap {
  width:40px; height:40px; border-radius:50%;
  background: conic-gradient(from 0deg, #c0c0c0, #fff, #999, #fff, #c0c0c0);
  border: 3px dashed var(--accent);
  display:flex; align-items:center; justify-content:center;
  font-weight:900; color:var(--secondary); font-size:14px;
  box-shadow: 0 0 8px rgba(255,209,102,0.3);
}

/* Footer */
.site-footer {
  background: var(--surface); border-top:1px solid var(--border);
  padding: 40px 24px; margin-top: auto;
}
.site-footer-inner {
  max-width: var(--max-width); margin:0 auto;
  display: grid; gap: 32px;
}
@media (min-width: 768px) {
  .site-footer-inner { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.footer-brand { font-size:20px; font-weight:800; display:flex; align-items:center; gap:8px; }
.footer-links { display:flex; flex-direction:column; gap:10px; }
.footer-links a { color:var(--text-secondary); text-decoration:none; font-size:14px; transition:0.2s; }
.footer-links a:hover { color:var(--primary); }
.footer-title { font-weight:600; font-size:14px; margin-bottom:12px; color:var(--text-primary); }
.footer-bottom {
  border-top:1px solid var(--border); padding-top:24px; margin-top:24px;
  text-align:center; color:var(--text-secondary); font-size:13px;
}

/* Sidebar (for internal pages desktop) */
.sidebar {
  display:none;
}
@media (min-width: 1024px) {
  .sidebar {
    display:flex; flex-direction:column; gap:8px;
    width:260px; flex-shrink:0; position:sticky; top:calc(var(--nav-height) + 24px); height:fit-content;
  }
  .sidebar-item {
    display:flex; align-items:center; gap:12px; padding:12px 16px;
    border-radius:var(--radius); color:var(--text-secondary); text-decoration:none;
    font-size:15px; font-weight:500; transition:0.2s;
  }
  .sidebar-item:hover { background:var(--surface); color:var(--text-primary); }
  .sidebar-item.active { background:rgba(255,107,53,0.1); color:var(--primary); border-left:3px solid var(--primary); }
  .sidebar-icon { font-size:20px; width:28px; text-align:center; }
  .page-with-sidebar { display:flex; gap:32px; }
  .page-main { flex:1; min-width:0; }
}