/* ==========================================================================
   PremiumKey — component riêng (lưới nhà cung cấp, trang nhà cung cấp, tra cứu
   đơn, key đã giao) + chế độ tối. Nạp sau style.css, trước theme.css (bảng màu,
   header/footer, trang chủ — xem layouts/main.php).
   ========================================================================== */

:root {
	--pk-shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .08);
	--pk-shadow: 0 10px 30px -12px rgba(15, 23, 42, .18);
	--pk-success: #16a34a;
	--pk-danger: #dc2626;
	--pk-warning: #d97706;
}

/* ----- Chế độ tối (biến màu ở theme.css) ----- */
[data-theme="dark"] body { background: var(--pk-bg); color: var(--pk-ink); }
[data-theme="dark"] .card, [data-theme="dark"] .dropdown-menu, [data-theme="dark"] .modal-content, [data-theme="dark"] .accordion-item,
[data-theme="dark"] .list-group-item { background: var(--pk-surface); color: var(--pk-ink); border-color: var(--pk-border); }
[data-theme="dark"] .text-muted { color: var(--pk-muted) !important; }
[data-theme="dark"] .form-control, [data-theme="dark"] .form-select { background-color: var(--pk-surface-2); border-color: var(--pk-border); color: var(--pk-ink); }
[data-theme="dark"] .bg-white, [data-theme="dark"] .bg-light { background: var(--pk-surface) !important; }
[data-theme="dark"] .table { --bs-table-bg: transparent; color: var(--pk-ink); }
[data-theme="dark"] .trust-strip { background: var(--pk-surface); border-color: var(--pk-border); }

.pk-theme-toggle .pk-theme-icon-light { display: none; }
[data-theme="dark"] .pk-theme-toggle .pk-theme-icon-dark { display: none; }
[data-theme="dark"] .pk-theme-toggle .pk-theme-icon-light { display: inline-block; }

/* ----- Chung ----- */
.pk-gradient-text { background: var(--pk-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.pk-section { padding: 56px 0; }
.pk-section-alt { background: var(--pk-surface-2); }
.pk-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }
.pk-section-title { font-size: clamp(1.4rem, 1.1rem + 1vw, 1.9rem); font-weight: 800; letter-spacing: -.02em; margin: 0; }
.pk-section-subtitle { color: var(--pk-muted); margin: 6px 0 0; }
.pk-block-title { font-size: 1.25rem; font-weight: 800; margin-bottom: 6px; }
.pk-link-arrow { font-weight: 700; color: var(--pk-primary); white-space: nowrap; }
.pk-link-arrow:hover { color: var(--pk-primary-dark); }
.pk-chip { display: inline-flex; align-items: center; padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 600;
	background: var(--pk-surface); border: 1px solid var(--pk-border); color: var(--pk-ink); transition: border-color .15s, color .15s; }
.pk-chip:hover { border-color: var(--pk-primary); color: var(--pk-primary); }
.pk-empty { text-align: center; padding: 56px 16px; color: var(--pk-muted); background: var(--pk-surface); border: 1px dashed var(--pk-border); border-radius: var(--radius-lg); }
.pk-empty i { font-size: 2.2rem; display: block; margin-bottom: 8px; }
.pk-stars { color: #f59e0b; font-weight: 700; white-space: nowrap; }

/* Logo nhà cung cấp (partials/supplier-logo.php) */
.pk-logo { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; overflow: hidden;
	background: var(--logo-color, var(--pk-primary)); color: #fff; font-weight: 800; letter-spacing: .02em; border-radius: 12px;
	box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .15); }
.pk-logo.has-image { background: #fff; box-shadow: inset 0 0 0 1px var(--pk-border); }
.pk-logo img { width: 100%; height: 100%; object-fit: contain; padding: 6px; }
.pk-logo-sm { width: 28px; height: 28px; font-size: 10.5px; border-radius: 8px; }
.pk-logo-md { width: 40px; height: 40px; font-size: 13px; border-radius: 10px; }
.pk-logo-lg { width: 56px; height: 56px; font-size: 17px; border-radius: 14px; }
.pk-logo-xl { width: 84px; height: 84px; font-size: 26px; border-radius: 20px; }

.pk-badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; color: #fff; vertical-align: middle; }
.pk-badge-hot { background: #ef4444; }
.pk-badge-sale { background: #f59e0b; }
.pk-badge-new { background: #10b981; }
.pk-badge-best_value { background: var(--pk-gradient); }

/* ----- Header bổ sung ----- */
.brand-logo { background: var(--pk-gradient) !important; }
.pk-nav-track { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 14px; color: var(--pk-primary); padding: 8px 12px; border-radius: 999px; }
.pk-nav-track:hover { background: var(--pk-primary-light); }
.pk-mega-menu { padding: 12px; min-width: min(720px, 92vw); border-radius: var(--radius-lg); border: 1px solid var(--pk-border); box-shadow: var(--pk-shadow); }
.pk-mega-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 4px; }
.pk-mega-item { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 10px; color: var(--pk-ink); }
.pk-mega-item:hover { background: var(--pk-primary-light); color: var(--pk-ink); }
.pk-mega-name { font-weight: 600; font-size: 14px; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pk-mega-price { font-size: 12px; color: var(--pk-muted); font-weight: 600; }
.pk-mega-all { display: block; text-align: center; margin-top: 8px; padding: 8px; border-top: 1px solid var(--pk-border); font-weight: 700; color: var(--pk-primary); }
@media (max-width: 991.98px) {
	.pk-mega-menu { min-width: 0; box-shadow: none; }
	.pk-mega-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* Tìm kiếm có gợi ý (premiumkey.js) */
.pk-search { position: relative; }
.pk-search-results { position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 1060; background: var(--pk-surface); border: 1px solid var(--pk-border);
	border-radius: 14px; box-shadow: var(--pk-shadow); padding: 6px; max-height: 420px; overflow-y: auto; }
.pk-search-item { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 10px; color: var(--pk-ink); }
.pk-search-item:hover, .pk-search-item.is-active { background: var(--pk-primary-light); color: var(--pk-ink); }
.pk-search-item-name { font-weight: 600; flex: 1; }
.pk-search-item-price { font-size: 12.5px; color: var(--pk-muted); font-weight: 600; }
.pk-search-empty { padding: 12px; color: var(--pk-muted); font-size: 14px; text-align: center; }
.pk-search-all { display: block; text-align: center; padding: 8px; font-size: 13px; font-weight: 700; color: var(--pk-primary); border-top: 1px solid var(--pk-border); margin-top: 4px; }

/* ----- Lưới nhà cung cấp ----- */
.pk-supplier-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 14px; }
.pk-supplier-card { position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px; padding: 22px 14px 18px;
	background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 18px; color: var(--pk-ink); box-shadow: var(--pk-shadow-sm);
	transition: transform .18s, box-shadow .18s, border-color .18s; }
.pk-supplier-card:hover { transform: translateY(-3px); box-shadow: var(--pk-shadow); border-color: var(--logo-color, var(--pk-primary)); color: var(--pk-ink); }
.pk-supplier-card .pk-badge { position: absolute; top: 10px; right: 10px; }
.pk-supplier-card .pk-logo { margin-bottom: 6px; }
.pk-supplier-name { font-weight: 800; font-size: 1rem; }
.pk-supplier-meta { font-size: 12.5px; color: var(--pk-muted); }
.pk-supplier-price { margin-top: 4px; font-weight: 800; color: var(--pk-primary); }
.pk-supplier-price small { font-weight: 600; color: var(--pk-muted); font-size: 12px; }

/* ----- Top sản phẩm ----- */
.pk-tabs { display: inline-flex; padding: 4px; background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 999px; }
.pk-tab { border: 0; background: transparent; padding: 6px 16px; border-radius: 999px; font-weight: 700; font-size: 14px; color: var(--pk-muted); }
.pk-tab.is-active { background: var(--pk-primary); color: #fff; }
.pk-top-list { display: none; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.pk-top-list.is-active { display: grid; }
@media (max-width: 767.98px) { .pk-top-list.is-active { grid-template-columns: 1fr; } }
.pk-top-item { display: flex; align-items: center; gap: 12px; padding: 12px 14px; background: var(--pk-surface); border: 1px solid var(--pk-border);
	border-radius: 14px; color: var(--pk-ink); transition: border-color .15s, box-shadow .15s; }
.pk-top-item:hover { border-color: var(--pk-primary); box-shadow: var(--pk-shadow-sm); color: var(--pk-ink); }
.pk-top-rank { width: 24px; text-align: center; font-weight: 800; color: var(--pk-muted); }
.pk-top-info { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.pk-top-name { font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pk-top-plan { font-size: 13px; color: var(--pk-muted); }
.pk-top-meta { display: flex; flex-direction: column; align-items: flex-end; font-size: 12px; color: var(--pk-muted); }
.pk-top-price { font-weight: 800; color: var(--pk-primary); min-width: 72px; text-align: right; }

/* ----- FAQ / CTA trang chủ ----- */
.pk-faq .accordion-item { border: 1px solid var(--pk-border); border-radius: 14px !important; overflow: hidden; margin-bottom: 10px; background: var(--pk-surface); }
.pk-faq .accordion-button { font-weight: 700; background: var(--pk-surface); color: var(--pk-ink); box-shadow: none; }
.pk-faq .accordion-button:not(.collapsed) { color: var(--pk-primary); }
.pk-faq .accordion-body { color: var(--pk-muted); }

/* ----- Trang danh sách / tiêu đề trang ----- */
.pk-page-head { padding: 28px 0 8px; }
.pk-page-title { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.2rem); font-weight: 800; letter-spacing: -.02em; }
.pk-page-subtitle { color: var(--pk-muted); }
.pk-breadcrumb { font-size: 13px; margin-bottom: 12px; }
.pk-breadcrumb a { color: var(--pk-muted); }
.pk-inline-search { display: flex; align-items: center; gap: 8px; background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 12px; padding: 6px 6px 6px 12px; min-width: min(360px, 100%); }
.pk-inline-search input { border: 0; outline: 0; background: transparent; flex: 1; color: var(--pk-ink); min-width: 0; }

/* ----- Trang nhà cung cấp ----- */
.pk-supplier-hero { padding: 28px 0 20px; background: linear-gradient(180deg, color-mix(in srgb, var(--logo-color) 12%, transparent), transparent); }
.pk-supplier-head { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.pk-supplier-facts { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 14px; color: var(--pk-muted); }
.pk-supplier-facts a { color: var(--pk-muted); }
.pk-supplier-facts a:hover { color: var(--pk-primary); }

.pk-package { background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 18px; padding: 20px; margin-bottom: 18px; box-shadow: var(--pk-shadow-sm); }
.pk-package-name { font-size: 1.15rem; font-weight: 800; margin: 0; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.pk-package-desc { color: var(--pk-muted); margin: 6px 0 0; font-size: 14px; }
.pk-features { list-style: none; padding: 0; margin: 12px 0 0; display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 13.5px; }
.pk-features i { color: var(--pk-success); }
.pk-plan-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin-top: 16px; }
.pk-plan { position: relative; display: flex; flex-direction: column; gap: 4px; padding: 14px 12px 12px; border: 2px solid var(--pk-border); border-radius: 14px;
	background: var(--pk-surface); cursor: pointer; transition: border-color .15s, box-shadow .15s, transform .15s; }
.pk-plan:hover { border-color: color-mix(in srgb, var(--pk-primary) 50%, var(--pk-border)); transform: translateY(-1px); }
.pk-plan input { position: absolute; opacity: 0; pointer-events: none; }
.pk-plan:has(input:checked) { border-color: var(--pk-primary); box-shadow: 0 0 0 4px var(--pk-primary-light); }
.pk-plan:has(input:checked)::after { content: "\F26E"; font-family: "bootstrap-icons"; position: absolute; top: 8px; right: 10px; color: var(--pk-primary); font-size: 1.1rem; }
.pk-plan.is-disabled { opacity: .55; cursor: not-allowed; }
.pk-plan-badge { position: absolute; top: -10px; left: 10px; padding: 2px 8px; border-radius: 999px; font-size: 10.5px; font-weight: 800; text-transform: uppercase; color: #fff; }
.pk-plan-duration { font-weight: 800; font-size: 1.05rem; }
.pk-plan-specs { display: flex; flex-direction: column; gap: 2px; font-size: 12.5px; color: var(--pk-muted); min-height: 20px; }
.pk-plan-price { font-size: 1.2rem; font-weight: 800; color: var(--pk-primary); margin-top: 4px; }
.pk-plan-price del { font-size: 12px; font-weight: 600; color: var(--pk-muted); margin-left: 4px; }
.pk-plan-stock { font-size: 11.5px; font-weight: 700; color: var(--pk-success); }
.pk-plan-stock.is-out { color: var(--pk-danger); }

.pk-buy-box { position: sticky; top: 140px; padding: 20px; background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 18px; box-shadow: var(--pk-shadow); }
.pk-buy-title { font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--pk-muted); }
.pk-buy-selected { font-weight: 800; font-size: 1.05rem; margin: 6px 0 16px; min-height: 2.6em; }
.pk-buy-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.pk-buy-total { padding-top: 14px; border-top: 1px dashed var(--pk-border); }
.pk-buy-total strong { font-size: 1.5rem; color: var(--pk-primary); }
.pk-qty { display: inline-flex; align-items: center; border: 1px solid var(--pk-border); border-radius: 12px; overflow: hidden; }
.pk-qty button { border: 0; background: var(--pk-surface-2); width: 36px; height: 38px; color: var(--pk-ink); }
.pk-qty input { width: 52px; border: 0; text-align: center; font-weight: 700; background: var(--pk-surface); color: var(--pk-ink); -moz-appearance: textfield; }
.pk-qty input::-webkit-outer-spin-button, .pk-qty input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.pk-guarantees { list-style: none; padding: 0; margin: 16px 0 0; display: flex; flex-direction: column; gap: 8px; font-size: 13.5px; color: var(--pk-muted); }
.pk-guarantees i { color: var(--pk-primary); margin-right: 6px; }
@media (max-width: 991.98px) { .pk-buy-box { position: static; } }

.pk-pills { gap: 6px; border-bottom: 1px solid var(--pk-border); padding-bottom: 10px; }
.pk-pills .nav-link { border-radius: 999px; font-weight: 700; color: var(--pk-muted); background: transparent; }
.pk-pills .nav-link.active { background: var(--pk-primary); color: #fff; }
.pk-tab-content { padding: 20px 4px; }
.pk-prose { color: var(--pk-ink); line-height: 1.75; max-width: 860px; }
.pk-steps-list { counter-reset: step; list-style: none; padding: 0; max-width: 760px; }
.pk-steps-list li { counter-increment: step; position: relative; padding: 4px 0 14px 44px; }
.pk-steps-list li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 30px; height: 30px; border-radius: 50%;
	background: var(--pk-primary-light); color: var(--pk-primary); font-weight: 800; display: flex; align-items: center; justify-content: center; }
.pk-faq-item { max-width: 860px; margin-bottom: 18px; }
.pk-faq-item h3 { font-size: 1rem; font-weight: 800; margin-bottom: 4px; }
.pk-faq-item p { color: var(--pk-muted); margin: 0; }

/* ----- Tra cứu đơn / thẻ hẹp ----- */
.pk-narrow-card { max-width: 520px; margin: 0 auto; padding: 32px; background: var(--pk-surface); border: 1px solid var(--pk-border); border-radius: 22px; box-shadow: var(--pk-shadow); }

/* ----- Key đã giao (checkout/result.php, email không dùng file này) ----- */
.pk-keys { display: flex; flex-direction: column; gap: 12px; }
.pk-key-card { padding: 16px; border: 1px solid var(--pk-border); border-radius: 16px; background: var(--pk-surface); }
.pk-key-card-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.pk-key-card-title { font-weight: 800; }
.pk-key-value { display: flex; align-items: stretch; gap: 8px; }
.pk-key-value code { flex: 1; display: flex; align-items: center; padding: 10px 14px; border-radius: 12px; background: var(--pk-surface-2); color: var(--pk-ink);
	font-size: 15px; font-weight: 700; letter-spacing: .03em; word-break: break-all; border: 1px dashed var(--pk-border); }
.pk-key-guide { margin-top: 10px; font-size: 13.5px; color: var(--pk-muted); }
.pk-key-guide summary { cursor: pointer; font-weight: 700; color: var(--pk-primary); }
.pk-key-guide ol { margin: 8px 0 0; padding-left: 20px; }

/* ----- Footer ----- */
.pk-pay-logos { display: flex; flex-wrap: wrap; gap: 6px; }
.pk-pay-logo { display: inline-flex; align-items: center; gap: 4px; padding: 4px 10px; border-radius: 8px; background: rgba(255, 255, 255, .1); color: #fff; font-weight: 700; font-size: 12.5px; }

/* Nút chat Telegram nổi */
.pk-float-chat { position: fixed; right: 20px; bottom: 84px; z-index: 1030; width: 52px; height: 52px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
	background: #229ed9; color: #fff; font-size: 1.5rem; box-shadow: 0 10px 24px rgba(34, 158, 217, .4); transition: transform .15s; }
.pk-float-chat:hover { color: #fff; transform: scale(1.06); }