/* ==========================================================================
   PremiumKey — theme "Nova": nền navy sâu, gradient tím–xanh, thẻ kính mờ, nút
   pill gradient (cảm hứng từ rewarble.com). Nạp SAU style.css + premiumkey.css
   (layouts/main.php) nên giữ toàn bộ bảng màu --pk-* cho cả 2 chế độ, header 1
   hàng, footer, trang chủ và lớp phủ cho component cũ.
   Mặc định là giao diện tối (script đầu <head> ở layouts/main.php); sáng vẫn dùng
   được qua nút đổi giao diện.
   ========================================================================== */

/* ----- Bảng màu ----- */
:root {
	--pk-primary: #6739ff;
	--pk-primary-dark: #4b23d9;
	--pk-primary-light: rgba(103, 57, 255, .1);
	--pk-accent: #12a6b8;
	--pk-accent-light: rgba(18, 166, 184, .12);
	--pk-bg: #f5f4ff;
	--pk-ink: #16133a;
	--pk-muted: #5e6282;
	--pk-surface: #ffffff;
	--pk-surface-2: #efedfb;
	--pk-border: #e1def5;
	--pk-glass: #ffffff;
	--pk-glass-border: #e1def5;
	--pk-gradient: linear-gradient(90deg, #5d88ff 0%, #8560ff 100%);
	--pk-btn-gradient: linear-gradient(90deg, #6739ff 0%, #6e52c3 100%);
	--pk-glow: 0 12px 40px -12px rgba(103, 57, 255, .35);
	--pk-shadow-sm: 0 1px 2px rgba(22, 19, 58, .05), 0 2px 8px rgba(22, 19, 58, .05);
	--pk-shadow: 0 18px 40px -18px rgba(22, 19, 58, .25);
	--page-bg: var(--pk-bg);
	--line: var(--pk-border);
	--header-sticky-h: 4.5rem;
	--radius-lg: 20px;
	--nav-bg: rgba(245, 244, 255, .72);
	--nav-bg-scrolled: rgba(255, 255, 255, .9);
}

[data-theme="dark"] {
	--pk-primary: #7c68ff;
	--pk-primary-dark: #6739ff;
	--pk-primary-light: rgba(124, 104, 255, .16);
	--pk-accent: #55d8dc;
	--pk-accent-light: rgba(85, 216, 220, .12);
	--pk-bg: #05051e;
	--pk-ink: #e2e8ff;
	--pk-muted: #abb0c7;
	--pk-surface: #0c0c2b;
	--pk-surface-2: #13133a;
	--pk-border: #252050;
	--pk-glass: rgba(97, 133, 255, .05);
	--pk-glass-border: rgba(100, 84, 141, .35);
	--pk-glow: 0 16px 50px -14px rgba(103, 57, 255, .55);
	--pk-shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
	--pk-shadow: 0 24px 60px -24px rgba(0, 0, 0, .8);
	--nav-bg: rgba(5, 5, 30, .55);
	--nav-bg-scrolled: rgba(5, 5, 30, .88);
	--bs-body-bg: var(--pk-bg);
	--bs-body-color: var(--pk-ink);
	--bs-emphasis-color: #fff;
	--bs-secondary-color: var(--pk-muted);
	--bs-tertiary-bg: var(--pk-surface-2);
	--bs-border-color: var(--pk-border);
}

/* ----- Nền + chữ ----- */
html { scroll-behavior: smooth; }
body {
	font-family: 'Onest', 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
	background-color: var(--pk-bg);
	background-image:
		radial-gradient(40rem 40rem at 0% 40%, rgba(85, 216, 220, .10), transparent 70%),
		radial-gradient(48rem 36rem at 100% 20%, rgba(152, 85, 220, .12), transparent 65%);
	background-attachment: fixed;
	color: var(--pk-ink);
}
/* Onest chưa có bộ chữ tiếng Việt — trang vi dùng Be Vietnam Pro để dấu không bị lẫn font. */
:lang(vi) body { font-family: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; }
[data-theme="dark"] body {
	background-image:
		radial-gradient(40rem 40rem at 0% 45%, rgba(85, 216, 220, .14), rgba(54, 13, 168, .08) 45%, transparent 80%),
		radial-gradient(52rem 38rem at 100% 25%, rgba(152, 85, 220, .14), rgba(54, 13, 168, .08) 45%, transparent 70%);
}
a { color: var(--pk-primary); }
a:hover { color: var(--pk-primary-dark); }
[data-theme="dark"] a:hover { color: #a395ff; }
::selection { background: rgba(124, 104, 255, .4); color: #fff; }

.pk-gradient-text {
	background: var(--pk-gradient);
	-webkit-background-clip: text;
	background-clip: text;
	color: transparent;
	filter: drop-shadow(0 4px 4px rgba(25, 14, 61, .3));
}

/* ----- Nút ----- */
.btn-pk-primary {
	background: var(--pk-btn-gradient);
	border: 0;
	color: #fff;
	font-weight: 700;
	border-radius: 999px;
	padding: .65rem 1.5rem;
	box-shadow: 0 10px 26px -10px rgba(103, 57, 255, .8);
	transition: transform .15s ease, box-shadow .2s ease, filter .2s ease;
}
.btn-pk-primary:hover,
.btn-pk-primary:focus-visible { color: #fff; filter: brightness(1.12); transform: translateY(-1px); box-shadow: 0 14px 32px -10px rgba(103, 57, 255, .95); }
.btn-pk-primary:active { color: #fff; transform: none; }
.btn-pk-outline {
	background: var(--pk-surface);
	border: 2px solid var(--pk-primary);
	color: var(--pk-primary);
	font-weight: 700;
	border-radius: 999px;
	padding: .6rem 1.45rem;
	transition: background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-pk-outline:hover { background: var(--pk-primary-light); color: var(--pk-primary); border-color: var(--pk-primary); }
[data-theme="dark"] .btn-pk-outline { background: linear-gradient(90deg, #221a21 0%, #171844 100%); border-color: #6e55d9; color: #fff; }
[data-theme="dark"] .btn-pk-outline:hover { background: linear-gradient(90deg, #2a1f3a 0%, #1f2060 100%); color: #fff; border-color: #8a75ff; }
.btn-pk-primary.btn-lg, .btn-pk-outline.btn-lg { padding: .85rem 1.9rem; font-size: 1rem; }
.btn-pk-accent { background: var(--pk-btn-gradient); color: #fff; box-shadow: none; }
.btn-pk-accent:hover { color: #fff; }

.pk-link-arrow { display: inline-flex; align-items: center; gap: 4px; font-weight: 600; color: var(--pk-ink); }
.pk-link-arrow:hover { color: var(--pk-primary); }
.pk-link-arrow .bi { font-size: .8em; }

/* ----- Topbar ----- */
.topbar { background: transparent; color: var(--pk-muted); border-bottom: 1px solid var(--pk-glass-border); font-size: .8rem; }
.topbar a.topbar-text { color: var(--pk-muted); }
.topbar a.topbar-text:hover { color: var(--pk-ink); }
.topbar-text i { color: var(--pk-accent); }

/* ----- Header (partials/header.php) ----- */
.site-header.pk-nav {
	background: var(--nav-bg);
	-webkit-backdrop-filter: blur(16px) saturate(140%);
	backdrop-filter: blur(16px) saturate(140%);
	border-bottom: 1px solid transparent;
	box-shadow: none;
	transition: background .25s ease, border-color .25s ease;
	z-index: 1030;
}
.site-header.pk-nav.is-scrolled { background: var(--nav-bg-scrolled); border-bottom-color: var(--pk-glass-border); }
.pk-nav-inner { display: flex; align-items: center; gap: 12px; min-height: var(--header-sticky-h); }

.pk-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--pk-ink); flex-shrink: 0; transition: filter .2s; }
.pk-brand:hover { color: var(--pk-ink); filter: drop-shadow(0 0 8px rgba(255, 255, 255, .35)); }
.pk-brand-mark {
	display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 11px;
	background: var(--pk-btn-gradient); color: #fff; font-size: 1.05rem; box-shadow: 0 6px 18px -6px rgba(103, 57, 255, .9), inset 0 0 0 1px rgba(255, 255, 255, .18);
}
.pk-brand-text { font-weight: 800; font-size: 1.25rem; letter-spacing: -.02em; }
.pk-brand-text span { background: var(--pk-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }

.pk-nav .pk-nav-links { gap: 2px; }
.pk-nav .nav-link { color: var(--pk-muted); font-weight: 600; font-size: .95rem; padding: .5rem .85rem !important; border: 0; background: none; border-radius: 999px; transition: color .15s, background .15s; }
.pk-nav .nav-link:hover, .pk-nav .nav-link:focus-visible, .pk-nav .nav-link.active, .pk-nav .nav-link.show { color: var(--pk-ink); }
.pk-nav .nav-link.dropdown-toggle::after { vertical-align: .15em; opacity: .7; }

.pk-nav-actions { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.pk-nav-icon {
	position: relative; display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; padding: 0;
	border-radius: 50%; border: 1px solid var(--pk-glass-border); background: var(--pk-glass); color: var(--pk-ink); font-size: 1.05rem;
	transition: border-color .15s, background .15s, box-shadow .15s;
}
.pk-nav-icon:hover, .pk-nav-icon[aria-expanded="true"] { color: var(--pk-ink); border-color: var(--pk-primary); box-shadow: 0 0 0 3px var(--pk-primary-light); }
.pk-nav-icon .lang-switcher-flag { width: 20px; height: 20px; border-radius: 50%; overflow: hidden; display: inline-flex; }
.pk-nav-icon .lang-switcher-flag svg { width: 100%; height: 100%; }
.pk-nav-count {
	position: absolute; top: -4px; right: -4px; min-width: 18px; height: 18px; padding: 0 5px; border-radius: 999px;
	background: var(--pk-btn-gradient); color: #fff; font-size: 11px; font-weight: 800; line-height: 18px; text-align: center;
}
.pk-nav-wallet {
	align-items: center; gap: 8px; height: 40px; padding: 0 14px; border-radius: 999px; font-weight: 700; font-size: .9rem;
	border: 1px solid var(--pk-glass-border); background: var(--pk-glass); color: var(--pk-ink);
}
.pk-nav-wallet:hover { color: var(--pk-ink); border-color: var(--pk-primary); }
.pk-nav-wallet .bi { color: var(--pk-accent); }
.pk-nav-account {
	display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 12px 0 4px; border-radius: 999px;
	border: 1px solid var(--pk-glass-border); background: var(--pk-glass); color: var(--pk-ink); font-weight: 600; font-size: .9rem;
}
.pk-nav-account > .bi-person-circle { font-size: 1.6rem; line-height: 1; margin-left: 2px; }
.pk-nav-account > .bi-chevron-down { font-size: .7rem; opacity: .7; }
.pk-nav-account-name { max-width: 9rem; }
.pk-nav-login { align-items: center; padding: 0 10px; font-weight: 600; font-size: .95rem; color: var(--pk-muted); }
.pk-nav-login:hover { color: var(--pk-ink); }
.pk-nav-cta.btn-pk-primary { align-items: center; padding: .5rem 1.15rem; font-size: .9rem; white-space: nowrap; }

.pk-nav-search-menu { width: min(380px, 90vw); padding: 8px !important; }
.pk-nav-search {
	display: flex; align-items: center; gap: 10px; padding: 9px 16px; border-radius: 999px;
	background: var(--pk-surface-2); border: 1px solid var(--pk-glass-border); color: var(--pk-muted);
}
.pk-nav-search:focus-within { border-color: var(--pk-primary); box-shadow: 0 0 0 3px var(--pk-primary-light); }
.pk-nav-search input { flex: 1; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--pk-ink); font-size: .95rem; }
.pk-nav-search input::placeholder { color: var(--pk-muted); }

/* Dropdown chung trong header/footer */
.site-header .dropdown-menu, .pk-footer .dropdown-menu {
	background: var(--pk-surface); border: 1px solid var(--pk-glass-border); border-radius: 16px; box-shadow: var(--pk-shadow); padding: 6px;
}
.site-header .dropdown-item, .pk-footer .dropdown-item { color: var(--pk-ink); border-radius: 10px; font-size: .92rem; padding: .5rem .75rem; }
.site-header .dropdown-item:hover, .site-header .dropdown-item.active, .site-header .dropdown-item:active,
.pk-footer .dropdown-item:hover, .pk-footer .dropdown-item.active { background: var(--pk-primary-light); color: var(--pk-ink); }
.site-header .dropdown-item.text-danger:hover { color: #ff6b81 !important; }
.lang-switcher-item:hover, .lang-switcher-item.active { color: var(--pk-ink); }
.pk-mega-menu { border-radius: 20px !important; padding: 12px !important; }
.pk-mega-item { color: var(--pk-ink); }
.pk-mega-item:hover { background: var(--pk-primary-light); }
.pk-mega-all { color: var(--pk-ink); border-top-color: var(--pk-glass-border); }
.pk-mega-all:hover { color: var(--pk-primary); }

@media (min-width: 992px) {
	.pk-nav .pk-nav-collapse { margin-left: 20px; }
}
@media (max-width: 991.98px) {
	.pk-nav-inner { flex-wrap: wrap; }
	.pk-nav-actions { order: 2; }
	.pk-nav .pk-nav-collapse { order: 3; flex-basis: 100%; }
	.pk-nav .pk-nav-collapse.show, .pk-nav .pk-nav-collapse.collapsing { padding-bottom: 16px; }
	.pk-nav .pk-nav-search { margin: 4px 0 8px; }
	.pk-nav .nav-link { padding: .65rem .25rem !important; border-radius: 0; border-bottom: 1px solid var(--pk-glass-border); }
	.pk-nav .pk-mega-menu { background: transparent; border: 0; box-shadow: none; padding: 4px 0 !important; }
	.pk-nav-mobile-auth { display: flex; gap: 8px; margin-top: 14px; }
	.pk-nav-mobile-auth .btn { flex: 1; }
	.site-header.pk-nav:has(.pk-nav-collapse.show) { background: var(--nav-bg-scrolled); }
}
@media (max-width: 400px) {
	.pk-brand-text { font-size: 1.1rem; }
	.pk-nav-icon { width: 36px; height: 36px; }
}

/* ----- Tìm kiếm gợi ý ----- */
.pk-search-results { background: var(--pk-surface); border-color: var(--pk-glass-border); border-radius: 16px; }
.pk-search-item { color: var(--pk-ink); }
.pk-search-all { color: var(--pk-ink); border-top-color: var(--pk-glass-border); }

/* ----- Khung section ----- */
.pk-section { padding: 72px 0; }
.pk-section-alt { background: transparent; }
.pk-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.pk-title { font-size: clamp(1.75rem, 1.3rem + 1.6vw, 2.6rem); font-weight: 700; letter-spacing: -.02em; line-height: 1.2; margin: 0; }
.pk-head p { color: var(--pk-muted); font-size: 1.05rem; margin: 10px 0 0; }
.pk-head .pk-tabs { margin-top: 20px; }
.pk-section-title { letter-spacing: -.02em; }
#suppliers { scroll-margin-top: calc(var(--header-sticky-h) + 16px); }
@media (max-width: 767.98px) { .pk-section { padding: 52px 0; } .pk-head { margin-bottom: 28px; } }

/* Quả cầu icon phát sáng (lợi ích, thanh toán, CTA) */
.pk-orb {
	display: inline-flex; align-items: center; justify-content: center; width: 72px; height: 72px; border-radius: 22px;
	color: #fff; font-size: 1.9rem; position: relative;
	background: linear-gradient(145deg, #7c68ff 0%, #4b23d9 100%);
	box-shadow: 0 18px 40px -14px rgba(103, 57, 255, .9), inset 0 1px 0 rgba(255, 255, 255, .35), inset 0 -10px 20px rgba(20, 0, 80, .35);
}
.pk-orb-2 { background: linear-gradient(145deg, #55d8dc 0%, #2470d8 100%); box-shadow: 0 18px 40px -14px rgba(30, 213, 241, .8), inset 0 1px 0 rgba(255, 255, 255, .35), inset 0 -10px 20px rgba(0, 30, 80, .35); }
.pk-orb-3 { background: linear-gradient(145deg, #c08bff 0%, #8e2bd6 100%); box-shadow: 0 18px 40px -14px rgba(182, 107, 247, .85), inset 0 1px 0 rgba(255, 255, 255, .35), inset 0 -10px 20px rgba(60, 0, 80, .35); }
.pk-orb-4 { background: linear-gradient(145deg, #5d88ff 0%, #1d2495 100%); box-shadow: 0 18px 40px -14px rgba(93, 136, 255, .85), inset 0 1px 0 rgba(255, 255, 255, .35), inset 0 -10px 20px rgba(0, 10, 80, .35); }

/* ----- Hero ----- */
.pk-hero { position: relative; overflow: hidden; padding: 48px 0 24px; text-align: center; }
.pk-hero-spotlight {
	position: absolute; top: -120px; left: 50%; width: min(900px, 140vw); height: 680px; transform: translateX(-50%); pointer-events: none;
	background:
		radial-gradient(closest-side at 50% 30%, rgba(124, 104, 255, .38), transparent 75%),
		conic-gradient(from 160deg at 50% 0%, transparent 0deg, rgba(124, 104, 255, .16) 18deg, transparent 36deg, rgba(85, 216, 220, .12) 52deg, transparent 70deg);
	animation: pk-spotlight 6s ease-in-out infinite;
}
[data-theme="light"] .pk-hero-spotlight { opacity: .55; }
@keyframes pk-spotlight { 0%, 100% { opacity: .75; } 50% { opacity: 1; } }

.pk-hero-art { position: relative; width: min(460px, 100%); height: 290px; margin: 0 auto 24px; perspective: 900px; }
.pk-keycard {
	position: absolute; top: 50%; left: 50%; z-index: 1; width: 300px; aspect-ratio: 1.586; padding: 20px 22px; border-radius: 20px;
	display: flex; flex-direction: column; text-align: left; color: #fff; overflow: hidden;
	background:
		radial-gradient(120% 90% at 100% 100%, rgba(30, 213, 241, .55), transparent 55%),
		linear-gradient(135deg, #24125f 0%, #5a32f0 48%, #7d5cff 100%);
	border: 1px solid rgba(255, 255, 255, .2);
	box-shadow: 0 40px 70px -28px rgba(103, 57, 255, .85), 0 0 50px -10px rgba(30, 213, 241, .35), inset 0 1px 0 rgba(255, 255, 255, .3);
	transform: translate(-50%, -50%) rotateX(14deg) rotateY(-16deg) rotateZ(4deg);
	animation: pk-card-float 7s ease-in-out infinite;
}
.pk-keycard::before {
	content: ""; position: absolute; inset: 0; pointer-events: none;
	background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, .22) 45%, transparent 60%);
	transform: translateX(-100%); animation: pk-sheen 5s ease-in-out infinite 1s;
}
@keyframes pk-card-float {
	0%, 100% { transform: translate(-50%, -50%) rotateX(14deg) rotateY(-16deg) rotateZ(4deg); }
	50% { transform: translate(-50%, -56%) rotateX(10deg) rotateY(-8deg) rotateZ(2deg); }
}
@keyframes pk-sheen { 0%, 60% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.pk-keycard-top { display: flex; align-items: center; gap: 10px; }
.pk-keycard-top .pk-brand-mark { width: 30px; height: 30px; border-radius: 9px; font-size: .9rem; background: rgba(255, 255, 255, .18); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .25); }
.pk-keycard-label { font-size: 11px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; opacity: .9; }
.pk-keycard-chip { margin-left: auto; width: 38px; height: 28px; border-radius: 7px; background: linear-gradient(135deg, #ffe7a3, #d4a24a); box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .15); }
.pk-keycard-code { margin: auto 0 14px; color: #fff; font-size: 1.15rem; font-weight: 700; letter-spacing: .12em; text-shadow: 0 2px 10px rgba(0, 0, 0, .3); white-space: nowrap; }
.pk-keycard-foot { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: 11.5px; font-weight: 600; }
.pk-keycard-status .bi { color: #7cf7c9; }
.pk-keycard-brand { opacity: .75; font-weight: 800; letter-spacing: .04em; }

.pk-orbit { position: absolute; z-index: 2; animation: pk-float 6s ease-in-out infinite; }
.pk-orbit .pk-logo { box-shadow: 0 14px 30px -10px rgba(0, 0, 0, .6), 0 0 0 1px rgba(255, 255, 255, .12); border-radius: 16px; }
.pk-orbit-0 { top: 4%; left: 4%; animation-delay: -1s; }
.pk-orbit-1 { top: 0; right: 10%; animation-delay: -3s; z-index: 0; }
.pk-orbit-2 { bottom: 6%; left: 0; animation-delay: -2s; z-index: 0; }
.pk-orbit-3 { bottom: 0; right: 2%; animation-delay: -4s; }
.pk-orbit-4 { top: 42%; left: -6%; animation-delay: -5s; transform: scale(.8); }
.pk-orbit-5 { top: 36%; right: -6%; animation-delay: -1.5s; transform: scale(.8); }
@keyframes pk-float { 0%, 100% { translate: 0 0; } 50% { translate: 0 -12px; } }

.pk-hero-copy { position: relative; max-width: 780px; margin: 0 auto; }
.pk-hero-badge {
	display: inline-flex; align-items: center; gap: 6px; padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600;
	color: var(--pk-ink); background: var(--pk-glass); border: 1px solid var(--pk-glass-border);
}
.pk-hero-badge .bi { color: var(--pk-accent); }
.pk-hero-title { font-size: clamp(2.3rem, 1.4rem + 3.4vw, 3.9rem); font-weight: 700; line-height: 1.12; letter-spacing: -.03em; margin: 18px 0 16px; }
.pk-hero-subtitle { color: var(--pk-muted); font-size: clamp(1rem, .95rem + .3vw, 1.15rem); max-width: 640px; margin: 0 auto; }
.pk-hero-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin: 28px 0 20px; }
.pk-hero-trust { display: flex; justify-content: center; align-items: center; flex-wrap: wrap; gap: 6px 8px; font-size: 14px; color: var(--pk-muted); }
.pk-hero-trust strong { color: var(--pk-ink); }
.pk-hero-trust-icon { color: var(--pk-accent); font-size: 1.05rem; }
.pk-dot { opacity: .5; }

.pk-benefits { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; margin-top: 72px; }
.pk-benefit h3 { font-size: 1.3rem; font-weight: 700; margin: 20px 0 8px; }
.pk-benefit p { color: var(--pk-muted); font-size: .95rem; max-width: 260px; margin: 0 auto; }
@media (max-width: 991.98px) { .pk-benefits { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px 20px; } }
@media (max-width: 575.98px) {
	.pk-hero { padding-top: 28px; }
	.pk-hero-art { height: 230px; }
	.pk-keycard { width: 250px; padding: 16px 18px; }
	.pk-keycard-code { font-size: .98rem; }
	.pk-orbit .pk-logo-lg { width: 44px; height: 44px; font-size: 14px; border-radius: 12px; }
	.pk-orbit-4, .pk-orbit-5 { display: none; }
	.pk-hero-actions .btn { flex: 1 1 100%; }
	.pk-benefits { margin-top: 56px; }
}

/* ----- 4 bước mua ----- */
.pk-flow { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.pk-flow-step { position: relative; text-align: center; }
.pk-flow-step:not(:last-child)::after {
	content: "\F285"; font-family: "bootstrap-icons"; position: absolute; top: 46px; right: -22px; font-size: 1.25rem; color: var(--pk-muted); opacity: .6;
}
.pk-flow-icon {
	position: relative; display: inline-flex; align-items: center; justify-content: center; width: 112px; height: 112px; border-radius: 30px;
	background: var(--pk-glass); border: 1px solid var(--pk-glass-border); font-size: 2.6rem; box-shadow: var(--pk-glow);
}
.pk-flow-icon .bi { background: var(--pk-gradient); -webkit-background-clip: text; background-clip: text; color: transparent; }
.pk-flow-num {
	position: absolute; top: -8px; right: -8px; width: 30px; height: 30px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
	background: var(--pk-btn-gradient); color: #fff; font-size: 13px; font-weight: 800; box-shadow: 0 6px 14px -4px rgba(103, 57, 255, .9);
}
.pk-flow-step p { margin: 18px 0 0; color: var(--pk-muted); }
.pk-flow-step strong { display: block; color: var(--pk-ink); font-size: 1.2rem; font-weight: 700; }
@media (max-width: 767.98px) {
	.pk-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px 16px; }
	.pk-flow-step::after { display: none; }
	.pk-flow-icon { width: 92px; height: 92px; font-size: 2.1rem; border-radius: 26px; }
}

/* ----- Dịch vụ (khối xen kẽ chữ / minh hoạ) ----- */
.pk-offers { display: flex; flex-direction: column; gap: 24px; }
.pk-offer {
	display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 40px; padding: 44px 48px; border-radius: 28px; overflow: hidden;
	background: var(--pk-glass); border: 1px solid var(--pk-glass-border); position: relative;
}
.pk-offer:nth-child(even) .pk-offer-body { order: 2; }
.pk-offer h3 { font-size: clamp(1.4rem, 1.2rem + .8vw, 1.85rem); font-weight: 700; margin: 0; }
.pk-checks { list-style: none; padding: 0; margin: 18px 0 26px; display: flex; flex-direction: column; gap: 10px; color: var(--pk-muted); }
.pk-checks li { display: flex; align-items: center; gap: 10px; }
.pk-checks .bi { color: var(--pk-accent); }
.pk-offer-art { position: relative; display: flex; align-items: center; justify-content: center; min-height: 240px; }
.pk-offer-art::before {
	content: ""; position: absolute; inset: 10% 15%; border-radius: 50%; filter: blur(50px);
	background: radial-gradient(circle, rgba(124, 104, 255, .45), rgba(85, 216, 220, .18) 60%, transparent 70%);
}
@media (max-width: 991.98px) {
	.pk-offer { grid-template-columns: 1fr; padding: 28px 22px; gap: 24px; }
	.pk-offer:nth-child(even) .pk-offer-body { order: 0; }
}

.pk-mock {
	position: relative; width: 100%; max-width: 380px; padding: 16px; border-radius: 20px; text-align: left;
	background: var(--pk-surface); border: 1px solid var(--pk-glass-border); box-shadow: var(--pk-shadow);
}
.pk-mock-head { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 600; color: var(--pk-muted); margin-bottom: 6px; }
.pk-mock-dots { display: inline-flex; gap: 5px; }
.pk-mock-dots i { width: 9px; height: 9px; border-radius: 50%; background: #ff5f57; }
.pk-mock-dots i:nth-child(2) { background: #febc2e; }
.pk-mock-dots i:nth-child(3) { background: #28c840; }
.pk-mock-row { display: flex; align-items: center; gap: 12px; padding: 10px; margin-top: 8px; border-radius: 14px; background: var(--pk-surface-2); }
.pk-mock-file { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 7px; }
.pk-mock-file > span:first-child { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pk-mock-bar { display: block; height: 6px; border-radius: 999px; background: rgba(127, 127, 160, .2); overflow: hidden; }
.pk-mock-bar > span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #55d8dc, #7c68ff); }
.pk-mock-speed { font-size: 12px; font-weight: 800; color: var(--pk-accent); white-space: nowrap; }
.pk-mock-mail-head { display: flex; align-items: center; gap: 12px; }
.pk-mock-mail-head strong { display: block; font-size: 14px; }
.pk-mock-mail-head span { font-size: 13px; color: var(--pk-muted); }
.pk-mock-key {
	display: flex; align-items: center; justify-content: space-between; gap: 10px; margin: 16px 0 14px; padding: 12px 12px 12px 14px;
	border-radius: 14px; border: 1px dashed var(--pk-primary); background: var(--pk-primary-light);
}
.pk-mock-key code { color: var(--pk-ink); font-size: 14px; font-weight: 700; letter-spacing: .06em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pk-mock-key span { flex-shrink: 0; padding: 4px 10px; border-radius: 999px; background: var(--pk-btn-gradient); color: #fff; font-size: 12px; font-weight: 700; }
.pk-mock-lines i { display: block; height: 8px; border-radius: 999px; background: rgba(127, 127, 160, .16); margin-top: 8px; }
.pk-mock-lines i:nth-child(2) { width: 85%; }
.pk-mock-lines i:nth-child(3) { width: 55%; }
.pk-mock-shield { text-align: center; padding: 24px 20px; }
.pk-mock-shield-icon {
	display: inline-flex; align-items: center; justify-content: center; width: 84px; height: 84px; border-radius: 26px; font-size: 2.6rem; color: #fff;
	background: linear-gradient(145deg, #55d8dc 0%, #2470d8 100%); box-shadow: 0 18px 40px -14px rgba(30, 213, 241, .8);
}
.pk-mock-shield ul { list-style: none; padding: 0; margin: 18px 0 0; text-align: left; display: flex; flex-direction: column; gap: 8px; }
.pk-mock-shield li { display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 12px; background: var(--pk-surface-2); font-size: 14px; font-weight: 600; }
.pk-mock-shield li .bi { color: var(--pk-primary); }
.pk-mock-shield li:first-child .bi { color: #28c840; }

.pk-popular { margin-top: 48px; text-align: center; }
.pk-popular h3 { font-size: 1rem; font-weight: 600; color: var(--pk-muted); margin: 0; }
.pk-popular-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin: 18px 0 20px; }
.pk-popular-item { display: inline-flex; border-radius: 16px; transition: transform .18s, box-shadow .18s; }
.pk-popular-item .pk-logo { border-radius: 16px; }
.pk-popular-item:hover { transform: translateY(-4px); box-shadow: 0 0 0 2px var(--pk-primary), var(--pk-glow); }

/* ----- Lưới nhà cung cấp / top gói ----- */
.pk-supplier-card { background: var(--pk-glass); border-color: var(--pk-glass-border); border-radius: 20px; box-shadow: none; }
.pk-supplier-card:hover { border-color: var(--pk-primary); box-shadow: var(--pk-glow); }
[data-theme="dark"] .pk-supplier-price, [data-theme="dark"] .pk-top-price, [data-theme="dark"] .pk-plan-price { color: #fff; }
.pk-tabs { background: var(--pk-glass); border-color: var(--pk-glass-border); }
.pk-tab.is-active { background: var(--pk-btn-gradient); }
.pk-top-item { background: var(--pk-glass); border-color: var(--pk-glass-border); border-radius: 16px; }
.pk-top-item:hover { border-color: var(--pk-primary); box-shadow: var(--pk-glow); }
.pk-top-rank { color: var(--pk-primary); }

/* ----- Thanh toán (2 thẻ) ----- */
.pk-paycard { height: 100%; padding: 36px 32px 32px; border-radius: 28px; background: var(--pk-glass); border: 1px solid var(--pk-glass-border); display: flex; flex-direction: column; }
.pk-paycard-art { display: flex; justify-content: center; margin-bottom: 20px; }
.pk-paycard-art .pk-orb { width: 64px; height: 64px; font-size: 1.6rem; border-radius: 20px; margin: 0 -6px; }
.pk-paycard-art .pk-orb:nth-child(2) { transform: translateY(-10px) scale(1.12); z-index: 1; }
.pk-paycard-title { text-align: center; font-size: 1.45rem; font-weight: 700; margin: 0 0 22px; }
.pk-paycard-feats { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.pk-feat { display: flex; gap: 12px; padding: 14px; border-radius: 16px; background: var(--pk-surface-2); }
[data-theme="dark"] .pk-feat { background: rgba(255, 255, 255, .03); border: 1px solid rgba(100, 84, 141, .2); }
.pk-feat > .bi { color: var(--pk-accent); font-size: 1.3rem; line-height: 1.2; }
.pk-feat strong { display: block; font-size: .95rem; }
.pk-feat span { display: block; color: var(--pk-muted); font-size: .85rem; }
.pk-paycard-lead { margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--pk-glass-border); }
.pk-paycard-lead h4 { font-size: 1.1rem; font-weight: 700; }
.pk-paycard-lead p { color: var(--pk-muted); margin-bottom: 10px; }
@media (max-width: 575.98px) { .pk-paycard { padding: 28px 18px 22px; } .pk-paycard-feats { grid-template-columns: 1fr; } }

/* ----- FAQ + CTA ----- */
.pk-faq .accordion-item { background: var(--pk-glass); border-color: var(--pk-glass-border); border-radius: 16px !important; }
.pk-faq .accordion-button { background: transparent; color: var(--pk-ink); }
.pk-faq .accordion-button:not(.collapsed) { color: var(--pk-ink); background: transparent; }
.pk-faq .accordion-button:focus { box-shadow: 0 0 0 3px var(--pk-primary-light); }
.pk-cta-card {
	height: 100%; padding: 36px 32px; border-radius: 28px; color: var(--pk-ink);
	background: radial-gradient(120% 80% at 100% 0%, rgba(124, 104, 255, .35), transparent 60%), var(--pk-glass);
	border: 1px solid var(--pk-glass-border);
}
.pk-cta-card h3 { font-weight: 700; margin: 22px 0 8px; }
.pk-cta-card p { color: var(--pk-muted); margin-bottom: 22px; }

/* Icon tròn dùng ở trang tra cứu đơn (orders/lookup.php) */
.pk-feature-icon {
	display: inline-flex; align-items: center; justify-content: center; width: 56px; height: 56px; border-radius: 18px;
	background: var(--pk-btn-gradient); color: #fff; font-size: 1.5rem; box-shadow: var(--pk-glow);
}

/* ----- Lớp phủ cho các trang con (thẻ, form, trang nhà cung cấp...) ----- */
.pk-package, .pk-buy-box, .pk-narrow-card, .pk-key-card, .pk-empty { background: var(--pk-glass); border-color: var(--pk-glass-border); box-shadow: none; }
[data-theme="dark"] .pk-plan { background: rgba(255, 255, 255, .02); border-color: var(--pk-glass-border); }
.pk-plan:has(input:checked) { border-color: var(--pk-primary); box-shadow: 0 0 0 4px var(--pk-primary-light), var(--pk-glow); }
.pk-supplier-hero { background: radial-gradient(60% 120% at 20% 0%, color-mix(in srgb, var(--logo-color) 22%, transparent), transparent 70%); }
.pk-pills .nav-link.active { background: var(--pk-btn-gradient); }
.pk-chip { background: var(--pk-glass); border-color: var(--pk-glass-border); }
[data-theme="dark"] .card { background: var(--pk-glass); border-color: var(--pk-glass-border); }
[data-theme="dark"] .form-control, [data-theme="dark"] .form-select { background-color: rgba(255, 255, 255, .03); border-color: var(--pk-glass-border); color: var(--pk-ink); }
[data-theme="dark"] .form-control::placeholder { color: rgba(171, 176, 199, .6); }
.form-control:focus, .form-select:focus { border-color: var(--pk-primary); box-shadow: 0 0 0 3px var(--pk-primary-light); }
[data-theme="dark"] .dropdown-menu { background: var(--pk-surface); border-color: var(--pk-glass-border); }
[data-theme="dark"] .alert { border-color: var(--pk-glass-border); }

/* ----- Dải cam kết + footer ----- */
.trust-strip, [data-theme="dark"] .trust-strip { background: transparent; border-top: 1px solid var(--pk-glass-border); padding: 28px 0; }
.trust-icon { color: var(--pk-accent); }
@media (min-width: 992px) { .trust-item + .trust-item { border-left-color: var(--pk-glass-border); } }

.site-footer.pk-footer { background: linear-gradient(180deg, transparent, rgba(97, 133, 255, .05)); color: var(--pk-muted); border-top: 1px solid var(--pk-glass-border); padding: 52px 0 40px; }
.pk-footer-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.pk-footer-brand { max-width: 440px; }
.pk-footer-brand .pk-brand { opacity: .9; }
.pk-footer-brand p { margin: 14px 0 0; font-size: .92rem; }
.pk-footer-lang {
	display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; font-size: .9rem; font-weight: 600;
	color: var(--pk-ink); background: var(--pk-glass); border: 1px solid var(--pk-glass-border);
}
.pk-footer-lang .bi-chevron-up { font-size: .7rem; opacity: .7; }
.pk-footer-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 32px; margin: 44px 0 36px; }
.pk-footer-col { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.pk-footer-col a { color: var(--pk-muted); font-size: .9rem; display: inline-flex; align-items: center; gap: 8px; }
.pk-footer-col a:hover { color: var(--pk-ink); }
.pk-footer-heading { color: var(--pk-ink); font-weight: 600; font-size: .95rem; margin: 0 0 6px; }
.pk-pay-logo { background: var(--pk-glass); color: var(--pk-ink); border: 1px solid var(--pk-glass-border); }
.pk-footer-note { font-size: .8rem; opacity: .75; margin: 0; }
.pk-footer-col .pk-footer-note { margin-top: 4px; }
.pk-footer-bottom { border-top: 1px solid var(--pk-glass-border); padding-top: 22px; display: flex; flex-direction: column; gap: 6px; }
.pk-footer-copy { font-size: .85rem; margin: 0; }
@media (max-width: 575.98px) {
	.pk-footer-cols { grid-template-columns: 1fr; gap: 0; }
	.pk-footer-col { padding: 16px 0; border-bottom: 1px solid var(--pk-glass-border); }
}

/* ----- Nút nổi ----- */
.btn-back-to-top { background: var(--pk-btn-gradient); box-shadow: 0 10px 24px -8px rgba(103, 57, 255, .9); }

@media (prefers-reduced-motion: reduce) {
	html { scroll-behavior: auto; }
	.pk-hero-spotlight, .pk-keycard, .pk-keycard::before, .pk-orbit { animation: none; }
}