:root {
    --primary-color: #0c00df; /* Màu chính */
    --secondary-color: #CAF207; /* Màu phụ */
    --background-color: #003c97; /* Màu nền */
    --white-milk-color: #FDFDFD; /* Màu xám nền */
    --white-color: #FFFFFF; /* Màu trắng */
    --black-color: #000000; /* Màu đen */
    --text-color: #1a1a1a; /* Màu chữ chính */
    --gray-color: #6b6b6b; /* Màu xám */
    --link-color: #0950b0; /* Màu liên kết */
    --swiper-pagination-bullet-width: 8px;
    --swiper-pagination-bullet-height: 8px;
    --swiper-pagination-color: var(--primary-color);
}

.cl-blue {
    color: var(--primary-color);
}

.cl-white {
    color: var(--white-color);
}
.cl-secondary {
    color: var(--secondary-color);
}
.bg-primary {
    background-color: var(--primary-color);
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'SVN-Poppins', sans-serif;
    background: #fff;
    font-size: 16px;
    min-height: 200vh;
    overflow-x: hidden;
    color: var(--text-color);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Space Grotesk', sans-serif;
}

.btn {
    padding: 0.5rem 1rem 0.5rem 0.5rem;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    text-align: center;
    border-radius: 99px;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease;
    text-transform: capitalize;
    white-space: nowrap;
    transition-property: background-color, transform;
    transition-duration: 300ms, 300ms;
    transition-timing-function:
            ease,
            ease;
    transform-style: preserve-3d;
}

.btn .icon {
    width: 22px;
    height: 22px;
    line-height: 22px;
    position: relative;
    margin-right: 8px;
}

.btn .inner-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    vertical-align: middle;
    width: 8px;
    height: 8px;
    line-height: 8px;
    display: grid;
    place-items: center;
    transition: all 0.1s ease;
    font-size: 1px;
    border-radius: 50%;
}

.btn .icon i {
    transition: all 0.3s ease;
}

.btn:hover .inner-icon {
    font-size: 0.8rem;
    width: 100%;
    height: 100%;
}

.btn-primary {
    border: 1px solid var(--primary-color);
    background-color: var(--primary-color);
    color: var(--white-color);
}

.btn-primary .inner-icon {
    background: var(--white-color);
    color: var(--primary-color);
}

.btn-primary:hover {
    background-color: #0a00b2;
}

.btn-secondary {
    border: 1px solid transparent;
    background-color: var(--white-color);
    color: var(--primary-color);
}

.btn-secondary .inner-icon {
    background: var(--primary-color);
    color: var(--white-color);
}

.btn-secondary:hover {
    background-color: var(--white-color);
}

@media (max-width: 768px) {
    .btn {
        padding: 0.25rem 0.75rem 0.25rem 0.25rem;
        font-size: 0.8rem;
    }

    .btn .icon {
        width: 18px;
        height: 18px;
        line-height: 18px;
        margin-right: 5px;
    }

    .btn .inner-icon {
        width: 6px;
        height: 6px;
        line-height: 6px;
    }

    .btn:hover .inner-icon {
        font-size: 0.6rem;
    }
}

.flip-link {
    position: relative;
    display: inline-block;
    perspective: 1000px;
    padding-left: 16px;
}

.flip-link:before {
    border-radius: 50%;
    content: "";
    display: block;
    height: 6px;
    left: 0;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 6px;
    background: var(--primary-color);
}

.flip-link span {
    display: block;
    text-align: center;
    transition: 0.5s;
    color: var(--primary-color);
}

.flip-link .text {
    position: relative;
    z-index: 2;
    opacity: 0;
}

.flip-link .front, .flip-link .back {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    backface-visibility: hidden;
}

.flip-link .front {
    transform: translateY(0) rotateX(0);
    opacity: 1;
    z-index: 1;
}

.flip-link .back {
    transform: translateY(-50%) rotateX(90deg);
    opacity: 0;
    z-index: 1;
}

.flip-link:hover .front {
    transform: translateY(50%) rotateX(90deg);
    opacity: 0;
}

.flip-link:hover .back {
    transform: translateY(0) rotateX(0);
    opacity: 1;
}
.sec-title {
    font-size: clamp(1.5rem, 4vw, 2rem);
    line-height: 1.3;
    letter-spacing: -0.15px;
}
#animated-title{
    visibility: hidden;
}
.section {
    overflow: hidden;
    padding-top: 25px;
    padding-bottom: 25px;
}
@media (min-width: 768px) {
    .section {
        padding-top: 50px;
        padding-bottom: 50px;
    }
}

@media (min-width: 1260px) {
    .section {
        padding-top: 75px;
        padding-bottom: 75px;
    }
}

.dot-before {
    position: relative;
    padding-left: 20px;
}

.dot-before::before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background-color: var(--text-color); /* màu chấm */
    border-radius: 50%;
}

.br-8 {
    border-radius: 8px;
}
.bg {
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.bg-fill.bg{
    object-fit: fill;
}
.bg-contain.bg{
    object-fit: contain;
}
.is-divider{
    width: 100%;
    height: 1px;
    color: var(--gray-color);
}
/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

img {
    max-width: 100%;
}

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

ul, ol {
    list-style: none;
}

h1, h2, h3, h4 {
    line-height: 1.2;
}

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

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.text-uppercase {
    text-transform: uppercase;
}

.text-bold {
    font-weight: bold;
}

.text-muted {
    color: #6c757d;
}

/* ===== GRID SYSTEM ===== */
.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -0.75em;
    margin-left: -0.75em;
}

[class*="col-"] {
    padding: 0 0.75rem;
}

.col-1 {
    width: 8.33%;
}

.col-2 {
    width: 16.66%;
}

.col-3 {
    width: 25%;
}

.col-4 {
    width: 33.33%;
}

.col-5 {
    width: 41.66%;
}

.col-6 {
    width: 50%;
}

.col-7 {
    width: 58.33%;
}

.col-8 {
    width: 66.66%;
}

.col-9 {
    width: 75%;
}

.col-10 {
    width: 83.33%;
}

.col-11 {
    width: 91.66%;
}

.col-12 {
    width: 100%;
}

@media (max-width: 767px) {
    .col-sm-1 {
        width: 8.33%;
    }

    .col-sm-2 {
        width: 16.66%;
    }

    .col-sm-3 {
        width: 25%;
    }

    .col-sm-4 {
        width: 33.33%;
    }

    .col-sm-5 {
        width: 41.66%;
    }

    .col-sm-6 {
        width: 50%;
    }

    .col-sm-7 {
        width: 58.33%;
    }

    .col-sm-8 {
        width: 66.66%;
    }

    .col-sm-9 {
        width: 75%;
    }

    .col-sm-10 {
        width: 83.33%;
    }

    .col-sm-11 {
        width: 91.66%;
    }

    .col-sm-12 {
        width: 100%;
    }
}

@media (min-width: 768px) {
    .col-md-1 {
        width: 8.33%;
    }

    .col-md-2 {
        width: 16.66%;
    }

    .col-md-3 {
        width: 25%;
    }

    .col-md-4 {
        width: 33.33%;
    }

    .col-md-5 {
        width: 41.66%;
    }

    .col-md-6 {
        width: 50%;
    }

    .col-md-7 {
        width: 58.33%;
    }

    .col-md-8 {
        width: 66.66%;
    }

    .col-md-9 {
        width: 75%;
    }

    .col-md-10 {
        width: 83.33%;
    }

    .col-md-11 {
        width: 91.66%;
    }

    .col-md-12 {
        width: 100%;
    }
}

@media (min-width: 993px) {
    .col-lg-1 {
        width: 8.33%;
    }

    .col-lg-2 {
        width: 16.66%;
    }

    .col-lg-3 {
        width: 25%;
    }

    .col-lg-4 {
        width: 33.33%;
    }

    .col-lg-5 {
        width: 41.66%;
    }

    .col-lg-6 {
        width: 50%;
    }

    .col-lg-7 {
        width: 58.33%;
    }

    .col-lg-8 {
        width: 66.66%;
    }

    .col-lg-9 {
        width: 75%;
    }

    .col-lg-10 {
        width: 83.33%;
    }

    .col-lg-11 {
        width: 91.66%;
    }

    .col-lg-12 {
        width: 100%;
    }
}

@media (min-width: 1024px) {
    .col-ml-1 {
        width: 8.333333%;
    }

    .col-ml-2 {
        width: 16.666667%;
    }

    .col-ml-3 {
        width: 25%;
    }

    .col-ml-4 {
        width: 33.333333%;
    }

    .col-ml-5 {
        width: 41.666667%;
    }

    .col-ml-6 {
        width: 50%;
    }

    .col-ml-7 {
        width: 58.333333%;
    }

    .col-ml-8 {
        width: 66.666667%;
    }

    .col-ml-9 {
        width: 75%;
    }

    .col-ml-10 {
        width: 83.333333%;
    }

    .col-ml-11 {
        width: 91.666667%;
    }

    .col-ml-12 {
        width: 100%;
    }
}

@media (min-width: 1200px) {
    .col-xl-1 {
        width: 8.333333%;
    }

    .col-xl-2 {
        width: 16.666667%;
    }

    .col-xl-3 {
        width: 25%;
    }

    .col-xl-4 {
        width: 33.333333%;
    }

    .col-xl-5 {
        width: 41.666667%;
    }

    .col-xl-6 {
        width: 50%;
    }

    .col-xl-7 {
        width: 58.333333%;
    }

    .col-xl-8 {
        width: 66.666667%;
    }

    .col-xl-9 {
        width: 75%;
    }

    .col-xl-10 {
        width: 83.333333%;
    }

    .col-xl-11 {
        width: 91.666667%;
    }

    .col-xl-12 {
        width: 100%;
    }
}

/* Offset columns */
.col-offset-1 {
    margin-left: 8.33%;
}

.col-offset-2 {
    margin-left: 16.66%;
}

.col-offset-3 {
    margin-left: 25%;
}

.col-offset-4 {
    margin-left: 33.33%;
}

.col-offset-5 {
    margin-left: 41.66%;
}

.col-offset-6 {
    margin-left: 50%;
}

.col-offset-7 {
    margin-left: 58.33%;
}

.col-offset-8 {
    margin-left: 66.66%;
}

.col-offset-9 {
    margin-left: 75%;
}

.col-offset-10 {
    margin-left: 83.33%;
}

.col-offset-11 {
    margin-left: 91.66%;
}

/* Medium devices (≥768px) */
@media (min-width: 768px) {
    .col-md-offset-0 {
        margin-left: 0%;
    }

    .col-md-offset-1 {
        margin-left: 8.333333%;
    }

    .col-md-offset-2 {
        margin-left: 16.666667%;
    }

    .col-md-offset-3 {
        margin-left: 25%;
    }

    .col-md-offset-4 {
        margin-left: 33.333333%;
    }

    .col-md-offset-5 {
        margin-left: 41.666667%;
    }

    .col-md-offset-6 {
        margin-left: 50%;
    }

    .col-md-offset-7 {
        margin-left: 58.333333%;
    }

    .col-md-offset-8 {
        margin-left: 66.666667%;
    }

    .col-md-offset-9 {
        margin-left: 75%;
    }

    .col-md-offset-10 {
        margin-left: 83.333333%;
    }

    .col-md-offset-11 {
        margin-left: 91.666667%;
    }

    .col-md-offset-12 {
        margin-left: 100%;
    }
}

/* Large devices (≥992px) */
@media (min-width: 992px) {
    .col-lg-offset-0 {
        margin-left: 0%;
    }

    .col-lg-offset-1 {
        margin-left: 8.333333%;
    }

    .col-lg-offset-2 {
        margin-left: 16.666667%;
    }

    .col-lg-offset-3 {
        margin-left: 25%;
    }

    .col-lg-offset-4 {
        margin-left: 33.333333%;
    }

    .col-lg-offset-5 {
        margin-left: 41.666667%;
    }

    .col-lg-offset-6 {
        margin-left: 50%;
    }

    .col-lg-offset-7 {
        margin-left: 58.333333%;
    }

    .col-lg-offset-8 {
        margin-left: 66.666667%;
    }

    .col-lg-offset-9 {
        margin-left: 75%;
    }

    .col-lg-offset-10 {
        margin-left: 83.333333%;
    }

    .col-lg-offset-11 {
        margin-left: 91.666667%;
    }

    .col-lg-offset-12 {
        margin-left: 100%;
    }
}

/* Extra large devices (≥1200px) – Optional */
@media (min-width: 1200px) {
    .col-xl-offset-0 {
        margin-left: 0%;
    }

    .col-xl-offset-1 {
        margin-left: 8.333333%;
    }

    .col-xl-offset-2 {
        margin-left: 16.666667%;
    }

    .col-xl-offset-3 {
        margin-left: 25%;
    }

    .col-xl-offset-4 {
        margin-left: 33.333333%;
    }

    .col-xl-offset-5 {
        margin-left: 41.666667%;
    }

    .col-xl-offset-6 {
        margin-left: 50%;
    }

    .col-xl-offset-7 {
        margin-left: 58.333333%;
    }

    .col-xl-offset-8 {
        margin-left: 66.666667%;
    }

    .col-xl-offset-9 {
        margin-left: 75%;
    }

    .col-xl-offset-10 {
        margin-left: 83.333333%;
    }

    .col-xl-offset-11 {
        margin-left: 91.666667%;
    }

    .col-xl-offset-12 {
        margin-left: 100%;
    }
}

/* ===== LAYOUT ===== */
.container {
    width: 100%;
    max-width: 2560px;
    padding-left: 20px;
    padding-right: 20px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .container {
        padding-left: 80px;
        padding-right: 80px;
    }
}

.flex {
    display: flex;
}

.flex-column {
    flex-direction: column;
}

.flex-wrap {
    flex-wrap: wrap;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.align-center {
    align-items: center;
}
/* ===== BASE SPACING (Desktop - lớn nhất) ===== */
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }
.gap-4 { gap: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.pt-1 { padding-top: 0.5rem; }
.pt-2 { padding-top: 1rem; }
.pt-3 { padding-top: 1.5rem; }
.pt-4 { padding-top: 2rem; }

.pb-1 { padding-bottom: 0.5rem; }
.pb-2 { padding-bottom: 1rem; }
.pb-3 { padding-bottom: 1.5rem; }
.pb-4 { padding-bottom: 2rem; }

/* ===== RESPONSIVE SCALE DOWN ===== */

/* ≤ 992px (tablet lớn) */
@media (max-width: 992px) {
    .gap-1 { gap: 0.4rem; }
    .gap-2 { gap: 0.8rem; }
    .gap-3 { gap: 1.2rem; }
    .gap-4 { gap: 1.6rem; }

    .mt-1 { margin-top: 0.4rem; }
    .mt-2 { margin-top: 0.8rem; }
    .mt-3 { margin-top: 1.2rem; }
    .mt-4 { margin-top: 1.6rem; }

    .mb-1 { margin-bottom: 0.4rem; }
    .mb-2 { margin-bottom: 0.8rem; }
    .mb-3 { margin-bottom: 1.2rem; }
    .mb-4 { margin-bottom: 1.6rem; }

    .pt-1 { padding-top: 0.4rem; }
    .pt-2 { padding-top: 0.8rem; }
    .pt-3 { padding-top: 1.2rem; }
    .pt-4 { padding-top: 1.6rem; }

    .pb-1 { padding-bottom: 0.4rem; }
    .pb-2 { padding-bottom: 0.8rem; }
    .pb-3 { padding-bottom: 1.2rem; }
    .pb-4 { padding-bottom: 1.6rem; }
}

/* ≤ 768px (tablet nhỏ) */
@media (max-width: 768px) {
    .gap-1 { gap: 0.35rem; }
    .gap-2 { gap: 0.7rem; }
    .gap-3 { gap: 1rem; }
    .gap-4 { gap: 1.4rem; }

    .mt-1 { margin-top: 0.35rem; }
    .mt-2 { margin-top: 0.7rem; }
    .mt-3 { margin-top: 1rem; }
    .mt-4 { margin-top: 1.4rem; }

    .mb-1 { margin-bottom: 0.35rem; }
    .mb-2 { margin-bottom: 0.7rem; }
    .mb-3 { margin-bottom: 1rem; }
    .mb-4 { margin-bottom: 1.4rem; }

    .pt-1 { padding-top: 0.35rem; }
    .pt-2 { padding-top: 0.7rem; }
    .pt-3 { padding-top: 1rem; }
    .pt-4 { padding-top: 1.4rem; }

    .pb-1 { padding-bottom: 0.35rem; }
    .pb-2 { padding-bottom: 0.7rem; }
    .pb-3 { padding-bottom: 1rem; }
    .pb-4 { padding-bottom: 1.4rem; }
}

/* ≤ 576px (mobile) */
@media (max-width: 576px) {
    .gap-1 { gap: 0.3rem; }
    .gap-2 { gap: 0.6rem; }
    .gap-3 { gap: 0.9rem; }
    .gap-4 { gap: 1.2rem; }

    .mt-1 { margin-top: 0.3rem; }
    .mt-2 { margin-top: 0.6rem; }
    .mt-3 { margin-top: 0.9rem; }
    .mt-4 { margin-top: 1.2rem; }

    .mb-1 { margin-bottom: 0.3rem; }
    .mb-2 { margin-bottom: 0.6rem; }
    .mb-3 { margin-bottom: 0.9rem; }
    .mb-4 { margin-bottom: 1.2rem; }

    .pt-1 { padding-top: 0.3rem; }
    .pt-2 { padding-top: 0.6rem; }
    .pt-3 { padding-top: 0.9rem; }
    .pt-4 { padding-top: 1.2rem; }

    .pb-1 { padding-bottom: 0.3rem; }
    .pb-2 { padding-bottom: 0.6rem; }
    .pb-3 { padding-bottom: 0.9rem; }
    .pb-4 { padding-bottom: 1.2rem; }
}

/* ≤ 480px (mobile mini / điện thoại nhỏ) */
@media (max-width: 480px) {
    .gap-1 { gap: 0.25rem; }
    .gap-2 { gap: 0.5rem; }
    .gap-3 { gap: 0.75rem; }
    .gap-4 { gap: 1rem; }

    .mt-1 { margin-top: 0.25rem; }
    .mt-2 { margin-top: 0.5rem; }
    .mt-3 { margin-top: 0.75rem; }
    .mt-4 { margin-top: 1rem; }

    .mb-1 { margin-bottom: 0.25rem; }
    .mb-2 { margin-bottom: 0.5rem; }
    .mb-3 { margin-bottom: 0.75rem; }
    .mb-4 { margin-bottom: 1rem; }

    .pt-1 { padding-top: 0.25rem; }
    .pt-2 { padding-top: 0.5rem; }
    .pt-3 { padding-top: 0.75rem; }
    .pt-4 { padding-top: 1rem; }

    .pb-1 { padding-bottom: 0.25rem; }
    .pb-2 { padding-bottom: 0.5rem; }
    .pb-3 { padding-bottom: 0.75rem; }
    .pb-4 { padding-bottom: 1rem; }
}

.invisible {
    visibility: hidden;
}

/* ===== RESPONSIVE HELPERS ===== */
@media (max-width: 768px) {
    .mobile-hide {
        display: none;
    }
}

@media (min-width: 769px) {
    .desktop-hide {
        display: none;
    }
}

/* Grid */
.grid {
    display: grid;
}

/* Utility */
.w-full {
    width: 100%;
}

.h-full {
    height: 100%;
}

.h-screen {
    height: 100vh;
}

.relative {
    position: relative;
}

.absolute {
    position: absolute;
}

.inset-0 {
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
}

.overflow-hidden {
    overflow: hidden;
}

.object-cover {
    object-fit: cover;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}