:root {
  --bg: #0b1220;
  --surface: #131c2e;
  --border: #243047;
  --text: #e8eef7;
  --muted: #8fa3bf;
  --accent: #22d3ee;
  --accent2: #3b82f6;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 1rem; }
.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(11, 18, 32, 0.92);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: 3.5rem;
  flex-wrap: wrap;
}
.logo {
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
  letter-spacing: 0.02em;
}
.nav { display: flex; gap: 0.75rem; flex-wrap: wrap; flex: 1; }
.nav-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}
.nav-link.is-active, .nav-link:hover { color: var(--accent); }
.main { padding: 2rem 0 3rem; }
.hero { padding: 2rem 0 1rem; }
.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.8rem;
}
.hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin: 0.75rem 0; }
.lead { color: var(--muted); max-width: 52ch; }
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 1.25rem; }
.btn {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
}
.btn-primary { background: var(--accent2); color: #fff; }
.btn-ghost { border-color: var(--border); color: var(--text); }
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.2rem;
}
.card ul { margin: 0.5rem 0 0; padding-left: 1.2rem; color: var(--muted); }
.page-head h1 { margin: 0 0 0.5rem; }
.muted { color: var(--muted); }
.err { color: #f87171; }
.plan-list { list-style: none; padding: 0; margin: 0; }
.plan-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
}
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-links a { color: var(--muted); margin-left: 1rem; }
code { font-size: 0.9em; }
.hidden { display: none !important; }

.header-actions { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.user-chip { display: flex; flex-direction: column; align-items: flex-end; font-size: 0.85rem; }
.user-balance { color: var(--accent); font-weight: 700; }
.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.85rem; }
.btn-block { display: block; text-align: center; width: 100%; margin-top: 0.75rem; }

.catalog-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; margin: 1rem 0; }
.tab-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
}
.tab-btn.is-active { color: var(--text); border-color: var(--accent); }
.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}
.plan-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}
.plan-specs { color: var(--muted); font-size: 0.9rem; }
.plan-price { font-size: 1.25rem; font-weight: 800; color: var(--accent); }
.plan-price span { font-size: 0.8rem; color: var(--muted); font-weight: 500; }
.catalog-loading { padding: 2rem; text-align: center; }
.spinner {
  width: 2rem; height: 2rem; margin: 0 auto;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.catalog-desc { margin: 0.5rem 0 1rem; color: var(--muted); }

.profile-grid, .ticket-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 1rem;
}
@media (max-width: 860px) {
  .profile-grid, .ticket-grid { grid-template-columns: 1fr; }
}
.profile-balance-label { margin: 1rem 0 0.25rem; color: var(--muted); font-size: 0.85rem; }
.profile-balance { font-size: 1.5rem; font-weight: 800; color: var(--accent); margin: 0; }
.service-list { display: flex; flex-direction: column; gap: 0.5rem; }
.service-row {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding: 0.75rem; border: 1px solid var(--border); border-radius: 8px;
}
.service-row-main { flex: 1; min-width: 180px; }
.service-actions { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.badge-type {
  display: inline-block; font-size: 0.7rem; padding: 0.1rem 0.35rem;
  border: 1px solid var(--border); border-radius: 4px; color: var(--accent); margin-right: 0.35rem;
}

.form-stack label { display: block; margin-bottom: 0.85rem; }
.form-stack input, .form-stack textarea, .form-stack select {
  width: 100%; margin-top: 0.35rem; padding: 0.55rem 0.65rem;
  border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg); color: var(--text);
}
.divider { border: none; border-top: 1px solid var(--border); margin: 1.25rem 0; }
.ticket-list { display: flex; flex-direction: column; gap: 0.5rem; }
.ticket-row {
  text-align: left; width: 100%; padding: 0.75rem;
  border: 1px solid var(--border); border-radius: 8px;
  background: var(--bg); color: var(--text); cursor: pointer;
}
.ticket-row:hover { border-color: var(--accent); }
.ticket-status { display: block; color: var(--muted); font-size: 0.85rem; margin-top: 0.25rem; }
.ticket-list-head { display: flex; justify-content: space-between; align-items: center; gap: 0.75rem; }
.ticket-thread { margin: 1rem 0; display: flex; flex-direction: column; gap: 0.75rem; }
.ticket-msg { padding: 0.75rem; border: 1px solid var(--border); border-radius: 8px; background: rgba(0,0,0,0.15); }
.ticket-msg-meta { font-size: 0.8rem; color: var(--muted); margin-bottom: 0.35rem; }
.ticket-reply-form textarea { width: 100%; margin: 0.75rem 0; }
.deposit-form { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.deposit-result {
  margin-top: 0.75rem; padding: 0.65rem; font-size: 0.75rem;
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  overflow: auto; max-height: 200px;
}

/* Checkout */
.checkout-grid {
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1rem; align-items: start;
}
@media (max-width: 860px) { .checkout-grid { grid-template-columns: 1fr; } }
.checkout-summary { position: sticky; top: 1rem; }
.checkout-summary-body { margin-bottom: 1rem; }
.checkout-total { font-size: 1.1rem; margin-top: 0.5rem; }
.checkout-terms { display: flex; gap: 0.5rem; align-items: flex-start; margin: 1rem 0; font-size: 0.9rem; }
.checkout-pay-btns { display: flex; flex-direction: column; gap: 0.5rem; }
.checkout-hint { font-size: 0.8rem; margin-top: 0.5rem; }
.checkout-empty { text-align: center; padding: 2rem; }
.checkout-result-extra { font-size: 0.75rem; max-height: 240px; overflow: auto; }

/* Modal */
.modal { position: fixed; inset: 0; z-index: 1000; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.modal.hidden { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,0.55); }
.modal-panel {
  position: relative; width: min(480px, 100%); max-height: 90vh; overflow: auto;
  background: var(--card, #1a1f2e); border: 1px solid var(--border); border-radius: 12px; padding: 1rem;
}
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.75rem; }
.modal-close { background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }
.modal-foot { display: flex; gap: 0.5rem; margin-top: 1rem; flex-wrap: wrap; }
.modal-msg { font-size: 0.85rem; margin-top: 0.5rem; }
.bank-qr { max-width: 220px; border-radius: 8px; }

/* Ticket attachments */
.ticket-attachments { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0.5rem 0; }
.ticket-attachments img { max-width: 120px; max-height: 80px; border-radius: 6px; object-fit: cover; }
.ticket-upload-preview { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.35rem; }
.ticket-upload-preview span {
  font-size: 0.75rem; padding: 0.2rem 0.45rem; background: var(--bg);
  border: 1px solid var(--border); border-radius: 4px;
}

/* Tools */
.tools-grid { display: grid; gap: 1rem; }
.tools-output { margin-top: 1rem; padding: 0.75rem; border: 1px solid var(--border); border-radius: 8px; background: rgba(0,0,0,0.12); word-break: break-all; }
.tools-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.tools-table th, .tools-table td { border: 1px solid var(--border); padding: 0.45rem 0.5rem; text-align: left; }
.tools-table tr.cp-row-ok { background: rgba(34,197,94,0.08); }
.tools-table tr.cp-row-err { background: rgba(239,68,68,0.08); }
.otp-display { font-size: 2.5rem; font-weight: 800; letter-spacing: 0.2em; text-align: center; margin: 1rem 0; color: var(--accent); }
.license-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 1rem; }

.profile-tabs { display: flex; gap: 0.35rem; margin-bottom: 1rem; flex-wrap: wrap; }
.profile-panel.hidden { display: none; }
.checkout-addons { margin: 0.75rem 0; padding: 0.75rem; border: 1px dashed var(--border); border-radius: 8px; }
.checkout-addons h4 { margin: 0 0 0.5rem; font-size: 0.95rem; }
.checkout-inline input { width: auto; margin-top: 0; }
#phaseWrap.phase-success { border-color: #22c55e; }
#phaseWrap.phase-error { border-color: #ef4444; }
.checkout-progress { height: 4px; background: var(--border); border-radius: 2px; margin: 0.5rem 0; }
.checkout-progress > div { height: 100%; background: var(--accent); width: 0; transition: width 1s linear; }

/* Notifications & banners */
.toast-container { position: fixed; top: 4rem; right: 1rem; z-index: 9999; display: flex; flex-direction: column; gap: 0.5rem; max-width: min(360px, 92vw); pointer-events: none; }
.site-toast { pointer-events: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 0.75rem 2rem 0.75rem 0.85rem; position: relative; opacity: 0; transform: translateX(12px); transition: opacity 0.25s, transform 0.25s; box-shadow: 0 8px 24px rgba(0,0,0,0.35); }
.site-toast.show { opacity: 1; transform: none; }
.site-toast--success { border-color: #22c55e; }
.site-toast--warning { border-color: #f59e0b; }
.site-toast--danger { border-color: #ef4444; }
.site-toast-body p { margin: 0.25rem 0 0; font-size: 0.9rem; color: var(--muted); }
.site-toast-close { position: absolute; top: 0.35rem; right: 0.45rem; background: none; border: none; color: var(--muted); font-size: 1.2rem; cursor: pointer; }
.svc-notif { margin-bottom: 1rem; }
.svc-notif-item { display: flex; gap: 0.75rem; align-items: flex-start; padding: 0.75rem 1rem; border-radius: 8px; border: 1px solid var(--border); background: rgba(34,211,238,0.06); }
.svc-notif-item--warning { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.35); }
.svc-notif-item--danger { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.35); }
.svc-notif-close { background: none; border: none; color: var(--muted); font-size: 1.1rem; cursor: pointer; margin-left: auto; }
.banner-popup-overlay { position: fixed; inset: 0; z-index: 9998; background: rgba(0,0,0,0.65); display: flex; align-items: center; justify-content: center; padding: 1rem; }
.banner-popup { position: relative; max-width: min(560px, 96vw); background: var(--surface); border-radius: 12px; overflow: hidden; }
.banner-popup-close { position: absolute; top: 0.35rem; right: 0.5rem; z-index: 2; background: rgba(0,0,0,0.5); border: none; color: #fff; width: 2rem; height: 2rem; border-radius: 50%; cursor: pointer; font-size: 1.2rem; }
.banner-popup-img { display: block; max-width: 100%; height: auto; }

/* Giavps */
.giavps-page { max-width: 1100px; margin: 0 auto; }
.giavps-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 860px) { .giavps-grid { grid-template-columns: 1fr; } }
.giavps-panel { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; }
.giavps-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin: 0.75rem 0; }
.giavps-btns { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
.giavps-btn { flex: 1; padding: 0.5rem; border: 1px solid var(--border); background: var(--bg); color: var(--text); border-radius: 8px; cursor: pointer; }
.giavps-btn.active { border-color: var(--accent); color: var(--accent); }
.giavps-price-item { display: flex; justify-content: space-between; align-items: center; padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
.giavps-price-item.recommended { border-left: 3px solid var(--accent); padding-left: 0.5rem; }
.giavps-summary { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.5rem; margin: 0.75rem 0; font-size: 0.9rem; }

/* Xulydulieu */
.xd-wrap { display: grid; grid-template-columns: 200px 1fr; gap: 1rem; }
@media (max-width: 720px) { .xd-wrap { grid-template-columns: 1fr; } }
.xd-tabs { display: flex; flex-direction: column; gap: 0.35rem; }
.xd-tab { text-align: left; padding: 0.5rem 0.75rem; border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 8px; cursor: pointer; }
.xd-tab.is-active { border-color: var(--accent); color: var(--accent); }
.xd-panel { display: none; }
.xd-panel.is-active { display: block; }
.xd-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; margin-bottom: 1rem; }
.xd-input { width: 100%; min-height: 120px; margin: 0.35rem 0 0.75rem; padding: 0.6rem; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font-family: ui-monospace, monospace; font-size: 0.85rem; }
.xd-input[type="text"] { min-height: auto; }
.xd-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.xd-toast { position: fixed; bottom: 1.5rem; right: 1.5rem; padding: 0.6rem 1rem; background: var(--surface); border: 1px solid var(--accent); border-radius: 8px; opacity: 0; transition: opacity 0.2s; pointer-events: none; z-index: 50; }
.xd-toast.is-on { opacity: 1; }

/* Thietkeweb */
.tkw-hero { text-align: center; padding: 2rem 0; }
.tkw-tabs { display: flex; justify-content: center; gap: 0.5rem; margin: 1.5rem 0; flex-wrap: wrap; }
.tkw-tab { padding: 0.5rem 1rem; border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 999px; cursor: pointer; }
.tkw-tab.is-active { border-color: var(--accent); color: var(--accent); }
.tkw-pane { display: none; }
.tkw-pane.is-active { display: block; }
.tkw-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 1rem; }
.tkw-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 1.25rem; }
.tkw-price { font-size: 1.5rem; font-weight: 800; color: var(--accent); margin: 0.5rem 0; }

/* Renew modal */
.renew-modal-panel { max-width: 520px; }
.renew-months-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin: 0.75rem 0; }
@media (max-width: 520px) { .renew-months-grid { grid-template-columns: repeat(2, 1fr); } }
.renew-month-opt { display: flex; flex-direction: column; gap: 0.2rem; padding: 0.6rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); cursor: pointer; text-align: left; }
.renew-month-opt.is-active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.renew-month-opt strong { color: var(--accent); font-size: 0.95rem; }
.renew-breakdown { margin: 0.75rem 0; padding: 0.75rem; border: 1px dashed var(--border); border-radius: 8px; font-size: 0.88rem; }
.renew-bd-row { display: flex; justify-content: space-between; gap: 0.5rem; padding: 0.25rem 0; }
.renew-bd-total { font-weight: 700; border-top: 1px solid var(--border); margin-top: 0.35rem; padding-top: 0.35rem; }
.renew-amount-row { font-size: 1.05rem; margin: 0.75rem 0 0; }
.renew-msg.ok { color: #22c55e; }
.renew-msg.err { color: #ef4444; }

.billing-filters { display: flex; gap: 0.35rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
.billing-filter { padding: 0.35rem 0.65rem; border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 999px; cursor: pointer; font-size: 0.85rem; }
.billing-filter.is-active { border-color: var(--accent); color: var(--accent); }
.billing-card { display: flex; justify-content: space-between; align-items: flex-start; gap: 0.75rem; padding: 0.75rem 0; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.billing-card--pending { border-left: 3px solid #f59e0b; padding-left: 0.5rem; }
.billing-card--paid { border-left: 3px solid #22c55e; padding-left: 0.5rem; }
.payment-tx { display: flex; justify-content: space-between; gap: 0.75rem; padding: 0.65rem 0; border-bottom: 1px solid var(--border); }
.payment-tx-amt.plus { color: #22c55e; font-weight: 600; }
.payment-tx-amt.minus { color: #ef4444; font-weight: 600; }
.payment-tx-desc { margin: 0.15rem 0; font-size: 0.88rem; }
.deposit-result { margin-top: 0.75rem; padding: 0.75rem; border: 1px solid var(--border); border-radius: 8px; font-size: 0.9rem; }
.settings-msg.ok { color: #22c55e; }
.settings-msg.err { color: #ef4444; }

/* Chat widget */
.chat-fab { position: fixed; bottom: 1.25rem; right: 1.25rem; z-index: 9000; width: 3rem; height: 3rem; border-radius: 50%; border: none; background: var(--accent2); color: #fff; font-size: 1.25rem; cursor: pointer; box-shadow: 0 4px 16px rgba(0,0,0,0.35); }
.chat-panel { position: fixed; bottom: 5rem; right: 1.25rem; z-index: 9000; width: min(340px, 92vw); max-height: 420px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; display: flex; flex-direction: column; box-shadow: 0 12px 32px rgba(0,0,0,0.45); }
.chat-panel.hidden { display: none; }
.chat-panel-head { display: flex; justify-content: space-between; align-items: center; padding: 0.65rem 0.85rem; border-bottom: 1px solid var(--border); font-weight: 600; }
.chat-panel-msgs { flex: 1; overflow-y: auto; padding: 0.75rem; display: flex; flex-direction: column; gap: 0.5rem; min-height: 200px; max-height: 280px; }
.chat-msg { padding: 0.45rem 0.65rem; border-radius: 8px; max-width: 88%; font-size: 0.88rem; word-break: break-word; }
.chat-msg--admin { background: rgba(59,130,246,0.15); align-self: flex-start; }
.chat-msg--user { background: rgba(34,211,238,0.12); align-self: flex-end; }
.chat-panel-foot { display: flex; gap: 0.35rem; padding: 0.65rem; border-top: 1px solid var(--border); }
.chat-panel-foot input { flex: 1; margin: 0; }
.chat-unread-dot { position: absolute; top: -2px; right: -2px; width: 10px; height: 10px; background: #ef4444; border-radius: 50%; }
.chat-fab-wrap { position: fixed; bottom: 1.25rem; right: 1.25rem; z-index: 9000; }

/* Deposit modal — bonus / lì xì */
.modal-panel--wide { max-width: 520px; }
.deposit-tiers { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0.35rem 0 0.65rem; }
.deposit-tier-badge { font-size: 0.78rem; padding: 0.2rem 0.5rem; border-radius: 999px; border: 1px solid var(--border); background: rgba(34,211,238,0.08); }
.deposit-lixi-panel { margin: 0.5rem 0; padding: 0.65rem; border: 1px solid var(--border); border-radius: 8px; background: rgba(239,68,68,0.06); font-size: 0.85rem; }
.deposit-lixi-panel.hidden { display: none; }
.deposit-lixi-panel__head { font-weight: 600; margin-bottom: 0.35rem; }
.deposit-lixi-panel__list { margin: 0; padding-left: 1.1rem; }
.deposit-lixi-panel__item { margin: 0.35rem 0; }
.deposit-lixi-panel__line--bonus { color: #f59e0b; }
.deposit-preview { font-size: 0.88rem; margin: 0.25rem 0 0.5rem; }
.deposit-promo-list { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0.35rem 0; }
.deposit-promo-chip { text-align: left; padding: 0.35rem 0.55rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); cursor: pointer; font-size: 0.78rem; }
.deposit-promo-chip:hover { border-color: var(--accent); }
.deposit-promo-chip strong { display: block; }
.deposit-lucky-notice { font-size: 0.85rem; padding: 0.5rem 0.65rem; border-radius: 8px; border: 1px solid rgba(245,158,11,0.35); background: rgba(245,158,11,0.08); color: #fbbf24; margin: 0.35rem 0; }
.deposit-lucky-notice.hidden { display: none; }

/* Profile autorenew */
.btn-autorenew--on { border-color: #22c55e; color: #22c55e; }
.btn-autorenew--busy { opacity: 0.6; cursor: wait; }
.service-row .btn-autorenew { margin-left: 0.35rem; }