:root {
    --bg: #020612;
    --bg-2: #071024;
    --panel: rgba(4, 12, 28, 0.78);
    --panel-strong: rgba(5, 13, 31, 0.94);
    --panel-soft: rgba(255, 255, 255, 0.045);
    --line: rgba(0, 145, 255, 0.34);
    --line-soft: rgba(75, 123, 255, 0.18);
    --text: #f8fbff;
    --muted: #aab6c8;
    --blue: #118dff;
    --blue-2: #24c6ff;
    --violet: #7d45ff;
    --pink: #ff4f91;
    --green: #00e0a4;
    --amber: #ffb020;
    --danger: #ff315f;
    --shadow-blue: 0 0 28px rgba(0, 140, 255, 0.32);
    --shadow-pink: 0 0 30px rgba(255, 79, 145, 0.34);
    --radius-card: 8px;
    --radius-pill: 999px;
    --container: 1500px;
    --transition: 180ms ease;
}

body.light-mode {
    --bg: #f7fbff;
    --bg-2: #ffffff;
    --panel: rgba(255, 255, 255, 0.9);
    --panel-strong: rgba(255, 255, 255, 0.96);
    --panel-soft: rgba(12, 68, 150, 0.06);
    --line: rgba(24, 104, 220, 0.26);
    --line-soft: rgba(22, 91, 190, 0.16);
    --text: #071225;
    --muted: #44536a;
    --shadow-blue: 0 12px 36px rgba(42, 105, 205, 0.14);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    letter-spacing: 0;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
    background:
        linear-gradient(115deg, rgba(0, 111, 255, 0.2), transparent 34%),
        linear-gradient(245deg, rgba(126, 55, 255, 0.2), transparent 36%),
        linear-gradient(180deg, var(--bg), var(--bg-2) 54%, var(--bg));
    color: var(--text);
    font-family: "Inter", Arial, sans-serif;
    line-height: 1.5;
}

body.light-mode {
    background:
        linear-gradient(115deg, rgba(66, 135, 255, 0.1), transparent 34%),
        linear-gradient(245deg, rgba(126, 80, 255, 0.09), transparent 36%),
        linear-gradient(180deg, var(--bg), var(--bg-2) 58%, #f5f9ff);
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -2;
    background-image:
        linear-gradient(rgba(39, 111, 255, 0.17) 1px, transparent 1px),
        linear-gradient(90deg, rgba(39, 111, 255, 0.17) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.88), rgba(0, 0, 0, 0.38));
}

body.light-mode::before {
    background-image:
        linear-gradient(rgba(44, 101, 190, 0.11) 1px, transparent 1px),
        linear-gradient(90deg, rgba(44, 101, 190, 0.11) 1px, transparent 1px);
    mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.55));
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background:
        linear-gradient(90deg, transparent 0%, rgba(0, 150, 255, 0.18) 46%, transparent 57%),
        linear-gradient(135deg, transparent 14%, rgba(255, 79, 145, 0.09) 48%, transparent 72%),
        linear-gradient(35deg, transparent 34%, rgba(0, 224, 164, 0.08) 52%, transparent 71%);
}

body.light-mode::after {
    background:
        linear-gradient(90deg, transparent 0%, rgba(54, 130, 255, 0.12) 46%, transparent 57%),
        linear-gradient(135deg, transparent 14%, rgba(126, 80, 255, 0.08) 48%, transparent 72%);
}

body.modal-open {
    overflow: hidden;
}

@media (min-width: 1400px) {
    .hero-copy h1 {
        font-size: 5rem;
    }

    .hero-shell {
        min-height: 620px;
        padding: 62px 64px 46px;
    }
}

img {
    max-width: 100%;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input {
    font: inherit;
}

button {
    cursor: pointer;
}

input {
    font-size: 16px;
}

.container {
    width: calc(100% - 48px);
    max-width: var(--container);
    margin-inline: auto;
}

.section {
    padding: 76px 0;
}

main section {
    scroll-margin-top: 118px;
}

.anchor-point {
    position: relative;
    top: -118px;
}

.site-header {
    position: fixed;
    inset: 24px 0 auto;
    z-index: 1000;
    pointer-events: none;
}

.nav-shell {
    position: relative;
    pointer-events: auto;
    min-height: 76px;
    display: flex;
    align-items: center;
    gap: 28px;
    padding: 0 26px;
    border: 1px solid rgba(0, 145, 255, 0.36);
    border-radius: 22px;
    background: rgba(3, 10, 25, 0.78);
    box-shadow: 0 16px 50px rgba(0, 0, 0, 0.34), inset 0 0 30px rgba(0, 145, 255, 0.04);
    backdrop-filter: blur(18px);
}

body.light-mode .nav-shell {
    border-color: rgba(30, 106, 210, 0.24);
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 16px 45px rgba(45, 91, 160, 0.13), inset 0 0 22px rgba(44, 101, 190, 0.04);
}

.brand {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    font-size: 1.7rem;
    font-weight: 900;
    color: var(--text);
    line-height: 1;
    position: relative;
    isolation: isolate;
    white-space: nowrap;
    filter: drop-shadow(0 0 10px rgba(0, 145, 255, 0.35));
    animation: brandGlow 3.8s ease-in-out infinite;
}

.brand span,
.brand strong {
    position: relative;
    display: inline-block;
}

.brand span {
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.18);
}

.brand strong {
    color: var(--blue);
    font-weight: 900;
    text-shadow: 0 0 14px rgba(17, 141, 255, 0.62);
}

.brand span::after,
.brand strong::after {
    content: attr(data-text);
    position: absolute;
    inset: 0;
    color: transparent;
    -webkit-text-fill-color: transparent;
    -webkit-background-clip: text;
    background-clip: text;
    background-image: linear-gradient(110deg, transparent 0%, transparent 34%, rgba(255, 255, 255, 0.95) 48%, rgba(36, 198, 255, 0.45) 58%, transparent 74%);
    background-size: 260% 100%;
    background-position: 160% 50%;
    pointer-events: none;
    animation: brandShine 3.2s ease-in-out infinite;
}

.brand strong::after {
    background-image: linear-gradient(110deg, transparent 0%, transparent 30%, rgba(255, 255, 255, 0.9) 44%, rgba(36, 198, 255, 0.95) 56%, transparent 74%);
    animation-delay: 0.26s;
}

body.light-mode .brand span {
    color: #071225;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.55);
}

body.light-mode .brand strong {
    color: #006df0;
    text-shadow: 0 0 12px rgba(0, 109, 240, 0.42);
}

@keyframes brandGlow {
    0%,
    100% {
        filter: drop-shadow(0 0 8px rgba(0, 145, 255, 0.32));
    }

    50% {
        filter: drop-shadow(0 0 18px rgba(36, 198, 255, 0.58));
    }
}

@keyframes brandShine {
    0%,
    18% {
        background-position: 160% 50%;
        opacity: 0;
    }

    42% {
        opacity: 1;
    }

    58% {
        background-position: -60% 50%;
        opacity: 0.88;
    }

    100% {
        background-position: -60% 50%;
        opacity: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .brand,
    .brand span::after,
    .brand strong::after {
        animation: none;
    }
}

.site-nav {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 42px;
}

.site-nav a {
    position: relative;
    color: var(--text);
    font-weight: 700;
    opacity: 0.88;
    transition: color var(--transition), opacity var(--transition);
}

.site-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -22px;
    height: 3px;
    border-radius: var(--radius-pill);
    background: linear-gradient(90deg, var(--blue), var(--blue-2));
    box-shadow: 0 0 18px rgba(36, 198, 255, 0.75);
    transform: scaleX(0);
    transition: transform var(--transition);
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--blue-2);
    opacity: 1;
}

body.light-mode .site-nav a {
    color: #263246;
}

body.light-mode .site-nav a:hover,
body.light-mode .site-nav a.active {
    color: #006df0;
}

.site-nav a.active::after {
    transform: scaleX(1);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-left: auto;
}

.theme-switch {
    width: 88px;
    height: 42px;
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    overflow: hidden;
    isolation: isolate;
    border: 1px solid rgba(0, 145, 255, 0.36);
    border-radius: var(--radius-pill);
    color: var(--amber);
    background: rgba(0, 17, 45, 0.68);
    box-shadow: inset 0 0 18px rgba(0, 145, 255, 0.11);
}

.theme-switch::before {
    content: "";
    position: absolute;
    top: 50%;
    right: 4px;
    width: 38px;
    height: 38px;
    z-index: 0;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(36, 198, 255, 0.5) 0%, rgba(24, 123, 255, 0.28) 42%, rgba(24, 123, 255, 0.08) 62%, transparent 76%);
    transform: translateY(-50%);
    pointer-events: none;
}

.theme-switch svg {
    width: 18px;
    height: 18px;
    position: relative;
    z-index: 1;
    flex: 0 0 auto;
}

.theme-switch svg:last-child {
    color: #eef4ff;
    width: 28px;
    height: 28px;
    padding: 6px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1238ff, #1c8dff);
    box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.16);
}

body.light-mode .theme-switch {
    border-color: rgba(33, 78, 150, 0.12);
    color: #f6a313;
    background: rgba(239, 244, 255, 0.82);
    box-shadow: inset 0 0 14px rgba(38, 84, 170, 0.08), 0 6px 18px rgba(43, 84, 160, 0.08);
}

body.light-mode .theme-switch::before {
    right: auto;
    left: 4px;
    background: radial-gradient(circle, rgba(255, 189, 69, 0.56) 0%, rgba(245, 158, 11, 0.28) 42%, rgba(245, 158, 11, 0.08) 62%, transparent 76%);
}

body.light-mode .theme-switch svg:first-child {
    color: #fff;
    width: 28px;
    height: 28px;
    padding: 6px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffbd45, #f59e0b);
    box-shadow: inset 0 0 10px rgba(255, 255, 255, 0.2);
}

body.light-mode .theme-switch svg:last-child {
    color: #9aa8c3;
    width: 18px;
    height: 18px;
    padding: 0;
    background: transparent;
    box-shadow: none;
}

.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    background: var(--panel-soft);
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    margin: 5px auto;
    border-radius: var(--radius-pill);
    background: var(--text);
}

.hero-section {
    padding: 132px 0 44px;
}

.hero-shell {
    position: relative;
    overflow: hidden;
    isolation: isolate;
    min-height: 560px;
    display: grid;
    align-content: center;
    gap: 38px;
    padding: 50px 56px 36px;
    border: 1px solid rgba(60, 150, 255, 0.64);
    border-radius: 24px;
    background:
        linear-gradient(90deg, rgba(0, 117, 255, 0.14), transparent 50%, rgba(129, 54, 255, 0.16)),
        rgba(2, 8, 22, 0.58);
    box-shadow: var(--shadow-blue), inset 0 0 60px rgba(0, 145, 255, 0.09);
    backdrop-filter: blur(1px);
}

.hero-shell::before,
.hero-shell::after {
    content: "";
    position: absolute;
    pointer-events: none;
}

body.light-mode .hero-shell {
    border-color: rgba(18, 109, 224, 0.32);
    background:
        linear-gradient(90deg, rgba(38, 124, 255, 0.08), transparent 50%, rgba(126, 80, 255, 0.08)),
        rgba(255, 255, 255, 0.62);
    box-shadow: 0 16px 50px rgba(36, 96, 190, 0.14), inset 0 0 38px rgba(44, 101, 190, 0.06);
}

body.light-mode .hero-shell::before {
    background: linear-gradient(90deg, rgba(44, 101, 190, 0.04), transparent 50%, rgba(126, 80, 255, 0.06));
}

body.light-mode .hero-copy h1 {
    color: #081226;
    text-shadow: none;
}

body.light-mode .hero-copy p,
body.light-mode .trust-line,
body.light-mode .section-heading p,
body.light-mode .info-panel p,
body.light-mode .review-card p,
body.light-mode .contact-shell p,
body.light-mode .footer-inner,
body.light-mode .price-box del,
body.light-mode .rating-row {
    color: #46556c;
}

body.light-mode .eyebrow {
    color: #0074f0;
    border-color: rgba(18, 109, 224, 0.28);
    background: rgba(236, 244, 255, 0.82);
}

body.light-mode .hero-stats {
    border-top-color: rgba(18, 109, 224, 0.22);
}

body.light-mode .stat-item {
    border-right-color: rgba(18, 109, 224, 0.22);
}

body.light-mode .stat-item span {
    color: #506078;
}

body.light-mode .ticker-wrapper,
body.light-mode .footer {
    background: rgba(255, 255, 255, 0.72);
    border-color: rgba(18, 109, 224, 0.14);
}

body.light-mode .ticker-content span {
    color: #53637b;
}

.hero-shell::before {
    inset: 0;
    background: linear-gradient(90deg, rgba(0, 117, 255, 0.08), transparent 50%, rgba(129, 54, 255, 0.08));
    opacity: 1;
}

.hero-shell::after {
    inset: 0;
    z-index: 0;
    padding: 2px;
    border-radius: inherit;
    background:
        conic-gradient(from var(--border-angle, 0deg), transparent 0deg, transparent 42deg, rgba(36, 198, 255, 1) 68deg, rgba(125, 69, 255, 1) 96deg, rgba(36, 198, 255, 0.84) 118deg, transparent 154deg, transparent 360deg);
    opacity: 0.95;
    filter: drop-shadow(0 0 24px rgba(36, 198, 255, 0.9));
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask-composite: exclude;
    animation: heroBorderBeam 4.6s linear infinite;
}

@property --border-angle {
    syntax: "<angle>";
    inherits: false;
    initial-value: 0deg;
}

@keyframes heroBorderBeam {
    to {
        --border-angle: 360deg;
    }
}

.hero-copy,
.hero-stats,
.section-heading,
.pricing-grid,
.guide-grid,
.proof-layout,
.contact-shell {
    position: relative;
    z-index: 1;
}

.hero-copy {
    max-width: 1040px;
    margin: 0 auto;
    text-align: center;
}

.eyebrow {
    width: fit-content;
    max-width: 100%;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 0 26px;
    border: 1px solid rgba(0, 145, 255, 0.52);
    border-radius: var(--radius-pill);
    color: var(--blue-2);
    background: rgba(0, 63, 142, 0.18);
    box-shadow: inset 0 0 16px rgba(0, 145, 255, 0.08);
    font-weight: 800;
    text-transform: uppercase;
}

.eyebrow svg {
    width: 20px;
    height: 20px;
    color: var(--blue);
    fill: rgba(17, 141, 255, 0.2);
}

.hero-copy h1 {
    margin-top: 22px;
    font-size: 4.4rem;
    line-height: 1.08;
    font-weight: 900;
    text-transform: uppercase;
    text-shadow: 0 6px 30px rgba(0, 0, 0, 0.46);
}

.hero-copy h1 .gradient-line {
    display: block;
    margin-top: 6px;
    color: transparent;
    background: linear-gradient(90deg, var(--blue-2), var(--blue), var(--violet));
    -webkit-background-clip: text;
    background-clip: text;
}

.hero-copy h1 .premium-word {
    display: inline;
    margin-top: 0;
    color: inherit;
    background: none;
    -webkit-text-fill-color: currentColor;
}

.hero-copy p {
    max-width: 840px;
    margin: 18px auto 0;
    color: var(--muted);
    font-size: 1.14rem;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-top: 28px;
}

.btn {
    min-height: 58px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 0 28px;
    border: 1px solid transparent;
    border-radius: var(--radius-card);
    color: #fff;
    font-weight: 800;
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}

.btn svg {
    width: 21px;
    height: 21px;
    flex: 0 0 auto;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(135deg, #1459ff, #00a3ff);
    border-color: rgba(79, 196, 255, 0.84);
    box-shadow: 0 0 28px rgba(0, 132, 255, 0.44), inset 0 0 18px rgba(255, 255, 255, 0.14);
}

.btn-outline {
    color: var(--text);
    background: rgba(0, 0, 0, 0.18);
    border-color: rgba(0, 160, 255, 0.62);
}

.btn-outline:hover {
    border-color: var(--blue-2);
    box-shadow: 0 0 22px rgba(0, 145, 255, 0.25);
}

.btn-dark {
    background: rgba(25, 23, 27, 0.92);
    border-color: rgba(255, 255, 255, 0.13);
    box-shadow: inset 0 0 18px rgba(255, 255, 255, 0.04);
}

.btn-zalo {
    background: linear-gradient(135deg, #1738ff, #15adff);
    border-color: rgba(86, 207, 255, 0.72);
    box-shadow: 0 0 22px rgba(0, 132, 255, 0.44);
}

.btn-zalo img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
}

.btn-full {
    width: 100%;
}

.trust-line {
    display: flex;
    width: fit-content;
    align-items: center;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
    margin: 20px auto 0;
    color: var(--muted);
    font-size: 1.08rem;
}

.trust-item {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    white-space: nowrap;
}

.trust-item svg {
    width: 30px;
    height: 30px;
    color: var(--blue);
    fill: rgba(17, 141, 255, 0.22);
}

.trust-line strong {
    display: inline-block;
    min-width: 5ch;
    text-align: left;
    color: var(--blue-2);
}

.trust-item .trust-count[data-format="phone"] {
    min-width: 11ch;
    text-align: left;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    width: min(100%, 1240px);
    max-width: 1240px;
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid rgba(0, 145, 255, 0.28);
}

.stat-item {
    min-height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 18px;
    padding: 0 16px;
    border-right: 1px solid rgba(0, 145, 255, 0.32);
    transition: opacity 520ms ease, transform 520ms ease, filter 520ms ease;
}

.stat-item:last-child {
    border-right: 0;
}

.stat-item svg {
    width: 48px;
    height: 48px;
    flex: 0 0 48px;
    color: var(--blue);
    fill: rgba(17, 141, 255, 0.24);
    filter: drop-shadow(0 0 12px rgba(17, 141, 255, 0.52));
    transform-origin: center;
}

.stat-item strong {
    display: block;
    font-size: 1.48rem;
    line-height: 1.1;
    text-transform: uppercase;
}

.stat-item span {
    display: block;
    margin-top: 6px;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
}

.hero-stats.stats-ready .stat-item {
    opacity: 0;
    filter: blur(8px);
    transform: translateY(18px);
}

.hero-stats.stats-played .stat-item {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
    transition-delay: var(--stat-delay, 0ms);
}

.hero-stats.stats-played .stat-item svg {
    animation: statIconPop 720ms cubic-bezier(0.18, 0.9, 0.22, 1.18) both;
    animation-delay: var(--stat-delay, 0ms);
}

.stat-count {
    min-width: 4.8ch;
    color: var(--text);
    transition: opacity 300ms ease, transform 300ms ease;
}

.hero-stats.stats-ready .stat-count {
    opacity: 0;
    transform: translateY(10px);
}

.hero-stats.stats-played .stat-count {
    opacity: 1;
    transform: translateY(0);
    transition-delay: calc(var(--stat-delay, 0ms) + 120ms);
}

.hero-stats [data-animate-text] {
    transition: opacity 360ms ease, transform 360ms ease, filter 360ms ease;
}

.hero-stats.stats-ready [data-animate-text] {
    opacity: 0;
    filter: blur(6px);
    transform: translateY(10px);
}

.hero-stats.stats-played [data-animate-text] {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
    transition-delay: calc(var(--stat-delay, 0ms) + 120ms);
}

@keyframes statIconPop {
    0% {
        opacity: 0;
        filter: drop-shadow(0 0 0 rgba(17, 141, 255, 0));
        transform: scale(0.64) rotate(-9deg);
    }

    60% {
        opacity: 1;
        filter: drop-shadow(0 0 18px rgba(36, 198, 255, 0.75));
        transform: scale(1.12) rotate(2deg);
    }

    100% {
        opacity: 1;
        filter: drop-shadow(0 0 10px rgba(17, 141, 255, 0.36));
        transform: scale(1) rotate(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .hero-stats.stats-ready .stat-item,
    .hero-stats.stats-ready .stat-count,
    .hero-stats.stats-ready [data-animate-text] {
        opacity: 0;
        filter: none;
        transform: none;
        transition: none;
        animation: none;
    }

    .hero-stats.stats-played .stat-item,
    .hero-stats.stats-played .stat-count,
    .hero-stats.stats-played [data-animate-text] {
        opacity: 1;
        filter: none;
        transform: none;
        transition: none;
        animation: none;
    }
}

.ticker-wrapper {
    overflow: hidden;
    border-block: 1px solid rgba(0, 145, 255, 0.22);
    background: rgba(1, 6, 18, 0.62);
    backdrop-filter: blur(12px);
}

.ticker-track {
    display: flex;
    width: max-content;
    animation: ticker 28s linear infinite;
}

.ticker-content {
    display: flex;
}

.ticker-content span {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 0 42px;
    color: var(--muted);
    white-space: nowrap;
}

.ticker-content svg {
    width: 18px;
    height: 18px;
    color: var(--blue-2);
}

@keyframes ticker {
    to {
        transform: translateX(-50%);
    }
}

.section-heading {
    max-width: 900px;
    margin: 0 auto 42px;
    text-align: center;
}

.section-heading h2 {
    margin-top: 16px;
    font-size: 2.7rem;
    line-height: 1.1;
    font-weight: 900;
}

.section-heading p {
    max-width: 760px;
    margin: 14px auto 0;
    color: var(--muted);
    font-size: 1.12rem;
}

.pricing-section {
    padding-top: 86px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
}

.price-card {
    position: relative;
    overflow: hidden;
    min-height: 344px;
    display: flex;
    flex-direction: column;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    background:
        linear-gradient(145deg, rgba(0, 87, 190, 0.12), transparent 46%),
        rgba(3, 11, 28, 0.83);
    box-shadow: inset 0 0 34px rgba(0, 145, 255, 0.08);
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.price-card::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(120deg, rgba(255, 255, 255, 0.09), transparent 32%);
    opacity: 0;
    transition: opacity var(--transition);
}

.price-card:hover {
    transform: translateY(-6px);
    border-color: rgba(36, 198, 255, 0.78);
    box-shadow: var(--shadow-blue), inset 0 0 42px rgba(0, 145, 255, 0.12);
}

.price-card:hover::before {
    opacity: 1;
}

body.light-mode .price-card {
    border-color: rgba(18, 109, 224, 0.24);
    background:
        linear-gradient(145deg, rgba(38, 124, 255, 0.07), transparent 46%),
        rgba(255, 255, 255, 0.92);
    box-shadow: 0 12px 34px rgba(36, 96, 190, 0.1), inset 0 0 28px rgba(38, 124, 255, 0.04);
}

body.light-mode .product-title h3,
body.light-mode .section-heading h2,
body.light-mode .proof-copy h2,
body.light-mode .contact-shell h2,
body.light-mode .info-panel h3,
body.light-mode .review-head strong,
body.light-mode .price-box strong {
    color: #071225;
}

.hot-card {
    border-color: rgba(255, 79, 145, 0.76);
    box-shadow: var(--shadow-pink), inset 0 0 34px rgba(255, 79, 145, 0.1);
}

.cyan-card {
    border-color: rgba(0, 224, 164, 0.55);
}

.warning-card {
    border-color: rgba(255, 176, 32, 0.54);
}

.card-top {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
}

.product-title {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    min-width: 0;
}

.product-icon {
    width: 58px;
    height: 58px;
    flex: 0 0 58px;
    display: grid;
    place-items: center;
    overflow: hidden;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 0 24px rgba(255, 255, 255, 0.14);
}

.product-icon img {
    width: 42px;
    height: 42px;
    object-fit: contain;
}

.gemini-icon {
    background: linear-gradient(135deg, #fff, #f3f7ff);
}

.canva-icon {
    background: linear-gradient(135deg, #1fb9ff, #7a35ff);
}

.perplexity-icon {
    background: rgba(0, 28, 34, 0.95);
    border: 1px solid rgba(0, 224, 164, 0.65);
}

.claude-icon {
    background: linear-gradient(135deg, #ff7433, #ff3a12);
}

.product-title h3 {
    font-size: 1.55rem;
    line-height: 1.16;
    font-weight: 900;
    white-space: nowrap;
}

.status-badge {
    min-height: 36px;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 0 14px;
    border-radius: var(--radius-pill);
    font-size: 0.86rem;
    font-weight: 900;
    white-space: nowrap;
}

.status-badge svg {
    width: 15px;
    height: 15px;
}

.status-badge.active {
    color: var(--green);
    border: 1px solid rgba(0, 224, 164, 0.35);
    background: rgba(0, 224, 164, 0.09);
}

.status-badge.hot {
    color: var(--danger);
    border: 1px solid rgba(255, 49, 95, 0.46);
    background: rgba(255, 49, 95, 0.1);
}

.status-badge.warning {
    color: var(--amber);
    border: 1px solid rgba(255, 176, 32, 0.5);
    background: rgba(255, 176, 32, 0.1);
}

.rating-row {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 18px;
    color: var(--muted);
    font-size: 1rem;
}

.stars {
    color: var(--amber);
    font-size: 1.05rem;
    text-shadow: 0 0 12px rgba(255, 176, 32, 0.28);
}

.price-box {
    position: relative;
    z-index: 1;
    min-height: 106px;
    display: grid;
    place-items: center;
    margin-top: 22px;
    padding: 16px;
    border: 1px solid rgba(0, 145, 255, 0.34);
    border-radius: var(--radius-card);
    background: rgba(1, 9, 25, 0.72);
    box-shadow: inset 0 0 28px rgba(0, 145, 255, 0.08);
    text-align: center;
}

body.light-mode .price-box {
    border-color: rgba(18, 109, 224, 0.2);
    background: rgba(246, 250, 255, 0.9);
}

body.light-mode .price-box strong {
    color: #0074f0;
}

body.light-mode .price-box strong span {
    color: #56667c;
}

.price-box del {
    color: var(--muted);
    font-size: 1.05rem;
}

.price-box strong {
    display: block;
    color: var(--blue);
    font-size: 2.08rem;
    line-height: 1.15;
    font-weight: 900;
}

.price-box strong span {
    color: var(--muted);
    font-size: 1.08rem;
    font-weight: 600;
}

.card-actions {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: auto;
    padding-top: 18px;
}

.guide-section,
.proof-section {
    background: rgba(1, 6, 18, 0.24);
}

body.light-mode .guide-section,
body.light-mode .proof-section {
    background: rgba(242, 247, 255, 0.44);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.info-panel,
.review-card {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-card);
    background: var(--panel);
    box-shadow: inset 0 0 26px rgba(0, 145, 255, 0.05);
}

body.light-mode .info-panel,
body.light-mode .review-card,
body.light-mode .contact-shell {
    border-color: rgba(18, 109, 224, 0.16);
    background: rgba(255, 255, 255, 0.82);
    box-shadow: 0 12px 30px rgba(36, 96, 190, 0.08), inset 0 0 22px rgba(38, 124, 255, 0.03);
}

.info-panel {
    min-height: 248px;
    padding: 28px;
}

.info-panel > span {
    color: rgba(36, 198, 255, 0.28);
    font-size: 3.2rem;
    font-weight: 900;
    line-height: 1;
}

.info-panel svg {
    width: 38px;
    height: 38px;
    margin-top: 16px;
    color: var(--blue);
}

.info-panel h3 {
    margin-top: 18px;
    font-size: 1.24rem;
}

.info-panel p {
    margin-top: 10px;
    color: var(--muted);
}

.proof-layout {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
}

.proof-copy h2,
.contact-shell h2 {
    margin-top: 20px;
    font-size: 2.35rem;
    line-height: 1.16;
}

.proof-copy p,
.contact-shell p {
    margin-top: 16px;
    color: var(--muted);
    font-size: 1.08rem;
}

.proof-list {
    display: grid;
    gap: 12px;
    margin-top: 24px;
}

.proof-list span {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    font-weight: 700;
}

body.light-mode .proof-list span {
    color: #172238;
}

.proof-list svg {
    width: 20px;
    height: 20px;
    color: var(--green);
}

.review-stack {
    display: grid;
    gap: 18px;
}

.review-card {
    padding: 24px;
}

.review-head {
    display: flex;
    align-items: center;
    gap: 14px;
}

.review-head > span {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(0, 145, 255, 0.32);
    border-radius: 50%;
    color: var(--blue-2);
    background: rgba(0, 145, 255, 0.1);
    font-weight: 900;
}

.review-head > span svg {
    width: 24px;
    height: 24px;
}

.review-head strong,
.review-head small {
    display: block;
}

.review-head small {
    color: var(--green);
}

.review-card p {
    margin-top: 16px;
    color: var(--muted);
}

.contact-section {
    padding-bottom: 86px;
}

.contact-shell {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 40px;
    align-items: center;
    padding: 40px;
    border: 1px solid rgba(0, 145, 255, 0.38);
    border-radius: var(--radius-card);
    background: linear-gradient(120deg, rgba(0, 123, 255, 0.14), rgba(126, 55, 255, 0.12)), var(--panel);
}

.contact-actions {
    display: grid;
    gap: 14px;
    min-width: 260px;
}

.contact-line {
    min-height: 56px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-card);
    color: var(--text);
    background: rgba(0, 0, 0, 0.18);
    font-weight: 800;
}

.contact-line svg {
    width: 20px;
    height: 20px;
    color: var(--blue-2);
}

.footer {
    border-top: 1px solid rgba(0, 145, 255, 0.24);
    background: rgba(1, 6, 18, 0.74);
}

.footer-inner {
    min-height: 110px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    color: var(--muted);
}

.footer-brand {
    font-size: 1.45rem;
}

.floating-contact {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 900;
    display: grid;
    gap: 14px;
    justify-items: end;
}

.float-btn {
    width: 184px;
    min-width: 184px;
    height: 58px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 0 24px;
    border-radius: var(--radius-pill);
    color: #fff;
    font-size: 0.95rem;
    font-weight: 900;
    text-transform: uppercase;
    white-space: nowrap;
    box-shadow: 0 0 24px rgba(0, 120, 255, 0.32);
    transition: transform var(--transition);
}

.float-btn:hover {
    transform: translateY(-2px) scale(1.04);
}

.float-btn img {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    border-radius: 50%;
}

.float-btn svg {
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    padding: 5px;
    border-radius: 50%;
}

.float-btn span {
    min-width: 82px;
    text-align: left;
}

.float-group {
    background: linear-gradient(135deg, #0aa976, #13d396);
    box-shadow: 0 0 26px rgba(0, 224, 164, 0.32);
}

.float-zalo {
    background: linear-gradient(135deg, #166dff, #35b8ff);
    box-shadow: 0 0 26px rgba(0, 145, 255, 0.38);
}

.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 22px;
    background: rgba(0, 0, 0, 0.74);
    backdrop-filter: blur(12px);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    position: relative;
    width: min(100%, 480px);
    max-height: calc(100vh - 44px);
    overflow: auto;
    padding: 30px;
    border: 1px solid rgba(0, 145, 255, 0.42);
    border-radius: var(--radius-card);
    background: var(--panel-strong);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.55), var(--shadow-blue);
}

.modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    background: var(--panel-soft);
    color: var(--text);
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.modal-title {
    padding-right: 42px;
    color: var(--blue-2);
    font-size: 1.45rem;
}

.modal-hint {
    margin: 16px 0 18px;
    color: var(--muted);
}

.modal-step {
    display: none;
}

#modal-step-1 {
    display: block;
}

.tier-selection {
    display: grid;
    gap: 12px;
}

.tier-btn {
    width: 100%;
    min-height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 16px;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-card);
    color: var(--text);
    background: var(--panel-soft);
    text-align: left;
}

.tier-btn:hover,
.tier-best {
    border-color: var(--blue-2);
    box-shadow: 0 0 18px rgba(0, 145, 255, 0.18);
}

.tier-info {
    display: grid;
    gap: 5px;
}

.tier-name {
    font-weight: 800;
}

.tier-badge {
    width: fit-content;
    padding: 3px 8px;
    border-radius: 6px;
    color: var(--green);
    background: rgba(0, 224, 164, 0.1);
    font-size: 0.78rem;
    font-weight: 800;
}

.tier-right {
    display: grid;
    justify-items: end;
    gap: 2px;
}

.tier-price {
    color: var(--blue-2);
    font-weight: 900;
    white-space: nowrap;
}

.tier-sub {
    color: var(--muted);
    font-size: 0.82rem;
}

.back-btn {
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin: 14px 0;
    border: 0;
    color: var(--muted);
    background: transparent;
}

.back-btn svg {
    width: 18px;
    height: 18px;
}

.package-info {
    display: grid;
    gap: 5px;
    margin-bottom: 18px;
    padding: 18px;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-card);
    background: rgba(0, 145, 255, 0.07);
    text-align: center;
}

.package-info span {
    color: var(--muted);
}

.package-info strong {
    color: var(--blue-2);
    font-size: 1.18rem;
}

.package-info b {
    font-size: 1.42rem;
}

.form-group {
    display: grid;
    gap: 8px;
    margin-bottom: 16px;
    color: var(--muted);
    font-weight: 700;
}

.form-group b {
    color: var(--amber);
}

.form-group input {
    width: 100%;
    min-height: 54px;
    padding: 0 14px;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius-card);
    outline: 0;
    color: var(--text);
    background: rgba(0, 0, 0, 0.2);
}

.form-group input:focus {
    border-color: var(--blue-2);
    box-shadow: 0 0 0 3px rgba(0, 145, 255, 0.16);
}

.qr-step {
    text-align: center;
}

.qr-container {
    width: fit-content;
    margin: 0 auto 18px;
    padding: 12px;
    border: 2px solid var(--blue-2);
    border-radius: var(--radius-card);
    background: #fff;
}

.qr-container img {
    width: 226px;
    height: 226px;
    object-fit: contain;
}

.bank-info {
    display: grid;
    gap: 8px;
    margin: 0 0 18px;
    padding: 18px;
    border: 1px solid rgba(0, 224, 164, 0.26);
    border-radius: var(--radius-card);
    color: var(--muted);
    background: rgba(0, 224, 164, 0.06);
    text-align: left;
}

.bank-info strong {
    color: var(--text);
}

.bank-info span {
    color: var(--blue-2);
    font-weight: 900;
    word-break: break-word;
}

@media (max-width: 1180px) {
    .site-nav {
        gap: 24px;
    }

    .hero-copy h1 {
        font-size: 4rem;
    }

    .pricing-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        row-gap: 18px;
    }

    .stat-item:nth-child(2) {
        border-right: 0;
    }
}

@media (max-width: 920px) {
    .container {
        width: calc(100% - 32px);
    }

    .site-header {
        inset: 14px 0 auto;
    }

    .nav-shell {
        min-height: 68px;
        padding: 0 16px;
        border-radius: 18px;
    }

    .brand {
        font-size: 1.35rem;
    }

    .nav-toggle {
        display: block;
        order: 3;
    }

    .site-nav {
        position: absolute;
        top: calc(100% + 10px);
        left: 16px;
        right: 16px;
        display: grid;
        justify-content: stretch;
        gap: 0;
        padding: 10px;
        border: 1px solid var(--line);
        border-radius: var(--radius-card);
        background: var(--panel-strong);
        box-shadow: var(--shadow-blue);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-8px);
        transition: opacity var(--transition), transform var(--transition);
    }

    .site-nav.active {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    .site-nav a {
        padding: 13px 12px;
        border-radius: 7px;
    }

    .site-nav a::after {
        display: none;
    }

    .site-nav a:hover,
    .site-nav a.active {
        background: rgba(0, 145, 255, 0.1);
    }

    .nav-actions {
        margin-left: auto;
        gap: 10px;
    }

    .theme-switch {
        width: 76px;
        height: 40px;
    }

    .hero-section {
        padding-top: 112px;
    }

    .hero-shell {
        min-height: auto;
        padding: 54px 24px 32px;
        border-radius: 16px;
    }

    .hero-copy h1 {
        font-size: 3rem;
    }

    .hero-copy p {
        font-size: 1.08rem;
    }

    .hero-actions {
        display: grid;
        gap: 14px;
        max-width: 440px;
        margin-inline: auto;
    }

    .proof-layout,
    .contact-shell {
        grid-template-columns: 1fr;
    }

    .contact-actions {
        min-width: 0;
    }

    .footer-inner {
        flex-direction: column;
        justify-content: center;
        text-align: center;
    }
}

@media (max-width: 720px) {
    .section {
        padding: 58px 0;
    }

    .pricing-grid,
    .guide-grid,
    .hero-stats {
        grid-template-columns: 1fr;
    }

    .stat-item,
    .stat-item:nth-child(2) {
        justify-content: flex-start;
        border-right: 0;
        border-bottom: 1px solid rgba(0, 145, 255, 0.26);
    }

    .stat-item:last-child {
        border-bottom: 0;
    }

    .section-heading h2,
    .proof-copy h2,
    .contact-shell h2 {
        font-size: 2rem;
    }

    .price-card {
        min-height: 0;
        padding: 22px;
    }

    .card-top {
        display: grid;
    }

    .status-badge {
        width: fit-content;
    }

    .card-actions {
        grid-template-columns: 1fr;
    }

    .floating-contact {
        right: 12px;
        bottom: 18px;
        gap: 12px;
        justify-items: end;
    }

    .float-btn {
        width: 58px;
        min-width: 58px;
        height: 58px;
        padding: 0;
        justify-content: center;
        gap: 0;
        border-radius: 50%;
    }

    .float-btn span {
        display: none;
    }
}

@media (max-width: 520px) {
    .container {
        width: auto;
        max-width: none;
        margin-left: 12px;
        margin-right: 12px;
    }

    .site-header {
        left: 12px;
        right: 12px;
        width: auto;
    }

    .site-header .container {
        width: 100%;
        max-width: none;
        margin-left: 0;
        margin-right: 0;
    }

    .nav-shell {
        width: 100%;
        max-width: none;
        gap: 10px;
        padding: 0 12px;
        min-height: 66px;
        justify-content: space-between;
        align-items: center;
    }

    .brand {
        font-size: 1.05rem;
    }

    .nav-actions {
        display: flex;
        position: absolute;
        top: 50%;
        right: 18px;
        align-items: center;
        margin-left: 0;
        flex: 0 0 auto;
        transform: translateY(-50%);
        z-index: 2;
    }

    .nav-toggle {
        display: none;
    }

    .theme-switch {
        width: 70px;
        height: 38px;
        gap: 7px;
        flex: 0 0 auto;
    }

    .hero-copy h1 {
        font-size: 2.18rem;
    }

    .hero-copy {
        max-width: 330px;
    }

    .hero-copy h1 .premium-word {
        display: block;
    }

    .hero-copy p {
        max-width: 310px;
    }

    .hero-shell {
        padding: 42px 16px 24px;
    }

    .eyebrow {
        min-height: 38px;
        padding: 0 14px;
        gap: 8px;
        font-size: 0.75rem;
    }

    .hero-copy p,
    .section-heading p,
    .proof-copy p,
    .contact-shell p {
        font-size: 0.98rem;
    }

    .btn {
        min-height: 54px;
        padding: 0 18px;
        font-size: 0.92rem;
    }

    .ticker-content span {
        padding: 0 24px;
    }

    .product-title h3 {
        font-size: 1.28rem;
        white-space: normal;
    }

    .price-box strong {
        font-size: 1.75rem;
    }

    .contact-shell {
        padding: 24px;
    }

    .floating-contact {
        right: 12px;
        left: auto;
        bottom: 18px;
        gap: 12px;
    }

    .float-btn {
        width: 58px;
        min-width: 58px;
        height: 58px;
        padding: 0;
        border-radius: 50%;
    }

    .float-btn img {
        width: 32px;
        height: 32px;
        flex-basis: 32px;
    }

    .float-btn svg {
        width: 32px;
        height: 32px;
        flex-basis: 32px;
    }

    .float-btn span {
        display: none;
        min-width: 0;
    }

    .modal-content {
        padding: 24px 18px;
    }

    .tier-btn {
        align-items: flex-start;
    }
}

@media (max-height: 760px) and (min-width: 921px) {
    .hero-section {
        padding-top: 108px;
        padding-bottom: 28px;
    }

    .hero-shell {
        min-height: 0;
        gap: 24px;
        padding: 34px 48px 24px;
    }

    .eyebrow {
        min-height: 38px;
    }

    .hero-copy h1 {
        margin-top: 14px;
        font-size: 3.6rem;
    }

    .hero-copy p {
        margin-top: 12px;
        font-size: 1.02rem;
    }

    .hero-actions {
        margin-top: 18px;
    }

    .btn {
        min-height: 52px;
    }

    .trust-line {
        margin-top: 14px;
        font-size: 1rem;
        gap: 8px;
    }

    .hero-stats {
        padding-top: 18px;
    }

    .stat-item {
        min-height: 62px;
        gap: 16px;
    }

    .stat-item svg {
        width: 34px;
        height: 34px;
    }

    .stat-item strong {
        font-size: 1.32rem;
    }
}