* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: #000;
    color: #fff;
    overflow-x: hidden;
    line-height: 1.6;
}

/* LOADER */
#loader {
    position: fixed;
    inset: 0;
    background: #0a0a0a;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: transform 1s cubic-bezier(0.85, 0, 0.15, 1);
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.loader-text {
    font-size: clamp(1rem, 2vw, 1.5rem);
    font-weight: 900;
    letter-spacing: 8px;
    text-transform: uppercase;
}

.loader-bar-container {
    width: 200px;
    height: 2px;
    background: rgba(255, 255, 255, 0.1);
    margin-top: 20px;
    position: relative;
    overflow: hidden;
}

.loader-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background: #fff;
    transition: width 1.5s cubic-bezier(0.65, 0, 0.35, 1);
}

#loader.hidden {
    transform: translateY(-100%);
}

/* FIXED SIDE LABELS */
.fixed-side-label {
    position: fixed;
    top: 50%;
    font-size: 10px;
    font-weight: 900;
    letter-spacing: 5px;
    color: rgba(255, 255, 255, 0.4);
    z-index: 100;
    writing-mode: vertical-rl;
    transform: translateY(-50%);
    text-transform: uppercase;
    pointer-events: none;
}

.fixed-side-label.left {
    left: 20px;
    transform: translateY(-50%) rotate(180deg);
}

.fixed-side-label.right {
    right: 20px;
}

/* NAVIGATION */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 25px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 2000;
    background: transparent;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    border-bottom: 1px solid transparent;
    transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 30px;
}

.music-toggle {
    cursor: pointer;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.6;
    transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
    z-index: 2000;
}

.music-toggle:hover {
    opacity: 1;
    transform: scale(1.1);
}

.music-toggle svg {
    width: 22px;
    height: 22px;
}

nav.scrolled {
    padding: 15px 5%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo a {
    font-weight: 900;
    letter-spacing: 2px;
    font-size: 14px;
    text-transform: uppercase;
    color: #fff;
    text-decoration: none;
}

/* MENU ICON & OVERLAY */
.menu-icon {
    cursor: pointer;
    z-index: 2000;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 30px;
}

.menu-icon span {
    display: block;
    width: 25px;
    height: 2px;
    background: #fff;
    margin: 6px 0;
    transition: transform 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    transform-origin: center;
}

.menu-icon.active span:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}
.menu-icon.active span:nth-child(2) {
    transform: translateY(-4px) rotate(-45deg);
}

.menu-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1500;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.menu-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.side-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 500px;
    max-width: 100vw;
    height: 100vh;
    background: #050505;
    z-index: 1600;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 100px 8%;
    border-left: 1px solid rgba(255, 255, 255, 0.1);
    transition: right 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.side-menu.active {
    right: 0;
}

.side-menu-label {
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 5px;
    color: rgba(255, 255, 255, 0.3);
    margin-bottom: 50px;
}

.side-menu-links {
    display: flex;
    flex-direction: column;
}

.side-menu-links a {
    color: #fff;
    text-decoration: none;
    font-size: clamp(1rem, 1.8vw, 1.5rem);
    font-weight: 900;
    letter-spacing: 1px;
    text-transform: uppercase;
    position: relative;
    display: block;
    width: 100%;
    padding: 18px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    z-index: 1;
}

.side-menu-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    z-index: -1;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.19, 1, 0.22, 1);
}

.side-menu-links a:last-child {
    border-bottom: none;
}

.side-menu-links a:hover {
    color: #000;
    padding-left: 15px;
}

.side-menu-links a:hover::before {
    transform: scaleX(1);
}

.side-menu-footer {
    margin-top: 100px;
    font-size: 11px;
    font-weight: 700;
    color: #444;
    letter-spacing: 2px;
}

/* REVEAL TEXT EFFECT */
.line-hide {
    overflow: hidden;
    display: block;
}

.reveal-text {
    display: block;
    transform: translateY(110%);
    opacity: 0;
    transition: transform 2.5s cubic-bezier(0.19, 1, 0.22, 1), opacity 1.5s ease;
    will-change: transform;
}

.active .reveal-text {
    transform: translateY(0);
    opacity: 1;
}

/* HERO SECTION */
.hero {
    height: 100vh;
    display: flex;
    align-items: flex-end;
    padding: 0 5% 100px;
    position: relative;
    overflow: hidden;
}

.hero-image {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1.3);
    transition: transform 1.6s ease-out;
}

.hero.active .hero-image img {
    transform: scale(1.25);
}

.overlay-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.15) 1px, transparent 1px);
    background-size: 25px 25px;
    z-index: 1;
}

.hero-title h1 {
    font-size: clamp(4rem, 12vw, 15rem);
    font-weight: 900;
    line-height: 0.8;
    letter-spacing: -5px;
    margin: 0;
}

.hero-title .line-hide:nth-child(1) .reveal-text {
    transition-delay: 0.2s;
}

.hero-title .line-hide:nth-child(2) .reveal-text {
    transition-delay: 0.4s;
}

/* =========================================
   ABOUT SECTION
========================================= */
.about {
    background: #fff;
    padding: 100px 5%;
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(135deg, rgba(26, 77, 163, 0.05) 25%, transparent 25%, transparent 50%, rgba(26, 77, 163, 0.05) 50%, rgba(26, 77, 163, 0.05) 75%, transparent 75%, transparent), 
                      radial-gradient(rgba(26, 77, 163, 0.2) 2px, transparent 2px);
    background-size: 100px 100px, 20px 20px;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
}

.about-header {
    margin-bottom: 40px;
    color: #000;
    line-height: 1.2;
}

.about-est {
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 1px;
    margin-bottom: 2px;
}

.about-sub {
    font-size: 16px;
    font-weight: 900;
    letter-spacing: 5px;
}

.about-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr; 
    gap: 60px;
    align-items: center;
}

.about-image {
    width: 100%;
    height: 100%;
    overflow: hidden;
    border-radius: 4px;
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0;
    transform: translateY(40px);
    transition: transform 1.6s cubic-bezier(0.19, 1, 0.22, 1), opacity 1.2s ease;
    will-change: transform, opacity;
}

.about.active .about-image img {
    opacity: 1;
    transform: translateY(0);
    transition-delay: 0.1s; 
}

.about-title .line-hide:nth-child(1) .reveal-text { transition-delay: 0.15s; }
.about-title .line-hide:nth-child(2) .reveal-text { transition-delay: 0.3s; }
.about-title .line-hide:nth-child(3) .reveal-text { transition-delay: 0.45s; }

.about-content h2.about-title {
    font-size: clamp(1.8rem, 3.2vw, 2.6rem); 
    font-weight: 900;
    line-height: 1.35;
    letter-spacing: -1.5px;
    color: #000;
    margin: 0;
}

.highlight-cetech {
    display: inline-block;
    font-weight: 900;
    margin-top: 5px;
}

@media (max-width: 900px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-image {
        justify-content: center;
    }

    .about-header,
    .about-content h2.about-title {
        text-align: center;
    }
}

/* DEPARTMENTS (CÁC DỰ ÁN) */
.departments {
    background: #000;
    position: relative;
    height: 300vh;
    padding: 0;
    display: block;
}

.departments-sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    padding: 0 8%;
    gap: 80px;
    overflow: hidden;
}

.dept-left {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.dept-headings {
    display: flex;
    flex-direction: column;
    margin-bottom: 50px;
    position: relative;
    padding-left: 40px;
}

.dept-indicator {
    position: absolute;
    left: 0;
    top: 0;
    width: 5px;
    background: #89CFF0;
    border-radius: 10px;
    transition: transform 0.4s cubic-bezier(0.19, 1, 0.22, 1), height 0.4s ease, background-color 0.4s ease;
}

.dept-heading {
    font-size: clamp(3rem, 5.5vw, 6rem);
    font-weight: 900;
    color: #333;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 10px;
    transition: color 0.5s ease, transform 0.5s ease;
    transform: translateX(-10px);
    cursor: pointer;
}

.dept-heading.active {
    color: #fff;
    transform: translateX(0);
}

.dept-descriptions {
    position: relative;
    min-height: 180px;
    padding-left: 40px;
}

.dept-desc {
    position: absolute;
    top: 0;
    left: 40px;
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.19, 1, 0.22, 1);
    pointer-events: none;
    width: calc(100% - 40px);
    max-width: 500px;
}

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

.dept-desc p {
    font-size: 1.15rem;
    color: #ccc;
    line-height: 1.7;
    margin-bottom: 25px;
}

.dept-links a {
    display: inline-block;
    color: #fff;
    text-decoration: underline;
    font-size: 14px;
    font-weight: 900;
    letter-spacing: 1px;
    text-underline-offset: 6px;
    transition: color 0.3s ease;
}

.dept-links a:hover {
    color: #89CFF0;
}

.dept-right {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    height: 100%;
    margin-top: 60px; 
}

.dept-image-container {
    height: 65vh; 
    max-width: 100%;
    aspect-ratio: 4/5;
    position: relative;
    overflow: hidden;
    border-radius: 12px;
}

.dept-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transform: translateY(10%) scale(1.1);
    transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.dept-img.active {
    opacity: 1;
    transform: translateY(0) scale(1);
}

@media (max-width: 900px) {
    .departments-sticky {
        grid-template-columns: 1fr;
        padding: 100px 5% 50px;
        gap: 30px;
        align-items: start;
    }
    .dept-right {
        justify-content: center;
        margin-top: 20px;
    }
    .dept-image-container {
        height: 45vh; 
        width: auto; 
    }
}

/* =========================================
   TALENTS SECTION (DEVELOPER)
========================================= */
.talents {
    background: #fff;
    padding: 120px 5%;
    position: relative;
    overflow: hidden;
}

.talents::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(135deg, rgba(26, 77, 163, 0.05) 25%, transparent 25%, transparent 50%, rgba(26, 77, 163, 0.05) 50%, rgba(26, 77, 163, 0.05) 75%, transparent 75%, transparent), radial-gradient(rgba(26, 77, 163, 0.2) 2px, transparent 2px);
    background-size: 100px 100px, 20px 20px;
    z-index: 0;
}

.talent-bg-decor {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.line-diagonal {
    position: absolute;
    width: 200%;
    height: 1px;
    background: rgba(26, 77, 163, 0.1);
    transform: rotate(-35deg);
}

.line-diagonal:nth-child(1) {
    top: 20%;
    left: -50%;
}

.line-diagonal:nth-child(2) {
    top: 60%;
    left: -50%;
}

.dots-blue {
    position: absolute;
    bottom: 50px;
    left: 10%;
    width: 150px;
    height: 150px;
    background-image: radial-gradient(#1a4da3 2px, transparent 2px);
    background-size: 20px 20px;
}

.talent-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 60px;
    position: relative;
    z-index: 1;
}

.talent-main-title {
    font-size: clamp(3rem, 8vw, 8rem);
    font-weight: 900;
    color: #1a4da3;
    letter-spacing: -2px;
    line-height: 1;
}

.talent-slider-wrapper {
    position: relative;
    padding: 0;
}

.view-all-btn {
    text-decoration: none;
    background: #f8e71c;
    color: #1a4da3;
    padding: 10px 12px;
    border-radius: 50px;
    border: 2px solid #1a4da3;
    font-weight: 900;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.3s ease;
}

.view-all-btn:hover {
    background: #1a4da3;
    color: #fff;
    transform: scale(1.05);
}

.lazy-text {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    z-index: 1;
    color: var(--talent-color);
    font-weight: 900;
    line-height: 0.8;
    opacity: 0.95;
}

.lazy-text .l-text {
    font-size: 7rem;
    display: block;
    letter-spacing: -4px;
    transition: letter-spacing 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.lazy-text .j-text {
    font-size: 2rem;
    display: block;
    margin-top: 10px;
    letter-spacing: 0;
    transition: letter-spacing 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.holostars-card:hover .lazy-text .l-text {
    letter-spacing: 8px;
}

.holostars-card:hover .lazy-text .j-text {
    letter-spacing: 16px;
}

.talent-image {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
}

.talent-image img {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    height: 85% !important;
    max-width: 65% !important;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(-10px 5px 20px rgba(0, 0, 0, 0.2));
    transition: left 0.6s cubic-bezier(0.19, 1, 0.22, 1), 
                transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.holostars-card:hover .talent-image img {
    left: 100%;
    transform: translateX(-100%);
}

.talents .holostars-card {
    opacity: 0;
    transform: translateX(120px);
    transition: transform 1.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 1.4s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform, opacity;
}

.talents.active .holostars-card {
    opacity: 1;
    transform: translateX(0);
}

.talents.active .holostars-card:nth-child(1) { transition-delay: 0.1s; }
.talents.active .holostars-card:nth-child(2) { transition-delay: 0.25s; }
.talents.active .holostars-card:nth-child(3) { transition-delay: 0.4s; }
.talents.active .holostars-card:nth-child(4) { transition-delay: 0.55s; }
.talents.active .holostars-card:nth-child(5) { transition-delay: 0.7s; }

.talent-slider-track {
    display: flex;
    gap: 60px;
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.05);
    border: none;
    z-index: 10;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
    transition: all 0.3s ease;
}

.slider-nav:hover {
    background: #1a4da3;
    color: #fff;
}

.slider-nav.prev {
    left: 0;
}

.slider-nav.next {
    right: 0;
}

.holostars-card {
    width: clamp(280px, 80vw, 450px);
    flex-shrink: 0;
    height: 550px;
    background: transparent;
    border-radius: 35px;
    position: relative;
    overflow: hidden;
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1), box-shadow 0.6s ease;
}

.holostars-card:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    z-index: 5;
}

.holostars-card::before,
.holostars-card::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 50%;
    background: var(--talent-color);
    z-index: 0;
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.holostars-card::before {
    top: 0;
    transform-origin: bottom;
}

.holostars-card::after {
    bottom: 0;
    transform-origin: top;
}

.holostars-card:hover::before,
.holostars-card:hover::after {
    transform: scaleY(0);
}

/* NEWS SECTION */
.news {
    background: #000;
    padding: 150px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.news-header-wrapper {
    text-align: center;
    margin-bottom: 80px;
}

.news-header-title {
    display: inline-block;
    font-size: 24px;
    font-weight: 900;
    letter-spacing: 4px;
    padding-bottom: 10px;
    border-bottom: 3px solid #fff;
    text-transform: uppercase;
}

.news-list {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 5%;
}

.news-item {
    display: flex;
    align-items: center;
    padding: 30px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    text-decoration: none;
    color: #fff;
    position: relative;
    overflow: hidden;
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1), 
                color 0.6s cubic-bezier(0.19, 1, 0.22, 1),
                padding-left 0.6s cubic-bezier(0.19, 1, 0.22, 1),
                opacity 0.6s cubic-bezier(0.19, 1, 0.22, 1);
    opacity: 0;
    transform: translateY(30px);
    transition-delay: 0s; 
}

.news-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    z-index: 1;
    transform: translateX(-100%);
    opacity: 0;
    border-radius: 8px;
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1), 
                opacity 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.news.active .news-item {
    opacity: 1;
    transform: translateY(0);
}

.news-meta,
.news-title-text {
    position: relative;
    z-index: 2;
    transition: transform 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.news.active .news-item:nth-child(1) { transition-delay: 0s; }
.news.active .news-item:nth-child(2) { transition-delay: 0s; }
.news.active .news-item:nth-child(3) { transition-delay: 0s; }
.news.active .news-item:nth-child(4) { transition-delay: 0s; }

.news-item:hover {
    color: #000;
    padding-left: 20px;
    padding-right: 20px;
    transform: translateY(-6px);
    transition-delay: 0s; 
}

.news-item:hover::before {
    transform: translateX(0);
    opacity: 1;
}

.news-item:hover .news-category {
    border-color: #000;
    color: #000;
}

.news-item:hover .news-date {
    color: #000;
}

.news-item:hover .news-title-text {
    color: #000;
    transform: translateY(-4px);
}

.news-item:hover .news-meta {
    transform: translateY(-4px);
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 30px;
    min-width: 250px;
}

.news-category {
    font-size: 10px;
    font-weight: 900;
    border: 1px solid #fff;
    padding: 2px 8px;
    letter-spacing: 1px;
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
}

.news-date {
    font-size: 14px;
    font-weight: 700;
    color: #888;
    font-family: monospace;
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
}

.news-title-text {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.4;
    flex: 1;
}

.news-archive {
    text-align: right;
    max-width: 1000px;
    margin: 40px auto 0;
    padding: 0 5%;
}

.archive-link {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 900;
    letter-spacing: 2px;
    transition: letter-spacing 0.3s ease;
}

.archive-link:hover {
    letter-spacing: 5px;
}

/* =========================================
   REVIEWS SECTION (WHITE STYLE)
========================================= */
.reviews {
    background: #fff;
    padding: 120px 5%;
    position: relative;
    overflow: hidden;
    background-image: linear-gradient(135deg, rgba(0, 0, 0, 0.015) 25%, transparent 25%, transparent 50%, rgba(0, 0, 0, 0.015) 50%, rgba(0, 0, 0, 0.015) 75%, transparent 75%, transparent), 
                      radial-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 1px);
    background-size: 100px 100px, 25px 25px;
    color: #000;
}

.reviews-header {
    margin-bottom: 60px;
}

.reviews-title {
    font-size: clamp(3rem, 8vw, 8rem);
    font-weight: 900;
    color: #000;
    letter-spacing: -2px;
    line-height: 1;
    text-transform: uppercase;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.review-card {
    background: rgba(0, 0, 0, 0.015);
    border: 1px solid rgba(0, 0, 0, 0.06);
    padding: 50px 35px 40px;
    border-radius: 25px;
    position: relative;
    transition: transform 0.5s cubic-bezier(0.19, 1, 0.22, 1), 
                box-shadow 0.5s ease, 
                border-color 0.3s ease, 
                background-color 0.3s ease;
}

.review-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.06);
    background-color: #fff;
    border-color: #000;
}

.quote-mark {
    font-size: 6rem;
    font-family: Georgia, serif;
    line-height: 1;
    color: rgba(0, 0, 0, 0.08);
    position: absolute;
    top: 5px;
    left: 25px;
    user-select: none;
    pointer-events: none;
}

.review-text {
    font-size: 1.05rem;
    color: #222;
    line-height: 1.7;
    margin-bottom: 35px;
    position: relative;
    z-index: 1;
}

.review-user {
    display: flex;
    flex-direction: column;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    padding-top: 20px;
}

.user-name {
    font-weight: 900;
    font-size: 16px;
    color: #000;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.user-role {
    font-size: 13px;
    color: #666;
    margin-top: 4px;
}

.reviews-action {
    display: flex;
    justify-content: center;
    margin-top: 60px; /* Tạo khoảng cách với các thẻ review phía trên */
}

.write-review-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #000; /* Nút màu đen nổi bật trên nền trắng */
    color: #fff;
    text-decoration: none;
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 900;
    letter-spacing: 2px;
    border-radius: 50px;
    border: 2px solid #000;
    transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
}

/* Hiệu ứng đảo màu và nhấc lên khi hover chuột */
.write-review-btn:hover {
    background: transparent;
    color: #000;
    transform: translateY(-6px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

/* FOOTER */
.footer {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: flex-end;
    padding-bottom: 50px;
    overflow: hidden;
    color: #fff;
}

.footer-bg-container {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.footer-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.footer-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.footer-inner {
    width: 90%;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.footer-main-logo {
    margin-bottom: 40px;
}

.footer-main-logo .logo-text {
    font-size: clamp(2.5rem, 8vw, 6rem);
    font-weight: 900;
    letter-spacing: -2px;
    line-height: 1;
    text-transform: uppercase;
    opacity: 0.9;
    transform: scaleY(1.1);
    transform-origin: bottom;
}

.footer-bottom-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 30px;
}

.footer-nav-wrapper {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-links a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    position: relative;
    padding: 0px 15px;
    display: inline-block;
    transition: color 0.4s cubic-bezier(0.19, 1, 0.22, 1);
    z-index: 1;
    line-height: 1.1;
}

.footer-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #fff;
    z-index: -1;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s cubic-bezier(0.19, 1, 0.22, 1);
}

.footer-links a:hover {
    color: #000;
}

.footer-links a:hover::before {
    transform: scaleX(1);
}

.footer-links .divider {
    color: rgba(255, 255, 255, 0.3);
    margin: 0;
    pointer-events: none;
}

.lang-switch {
    display: flex;
    border: 1px solid #fff;
    position: relative;
    cursor: pointer;
    overflow: hidden;
    height: 28px;
    width: fit-content;
    align-items: center;
    user-select: none;
    margin-bottom: 5px;
}

.lang {
    position: relative;
    z-index: 2;
    width: 45px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 900;
    color: #fff;
    transition: color 0.4s ease;
}

.lang.active {
    color: #000;
}

.lang-switch::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background: #fff;
    z-index: 1;
    transition: transform 0.4s cubic-bezier(0.19, 1, 0.22, 1);
}

.lang-switch.en-active::before {
    transform: translateX(100%);
}

.mappa-shop-btn {
    border: 1px solid #fff;
    padding: 15px 30px;
    text-decoration: none;
    color: #fff;
    font-weight: 900;
    font-size: 14px;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.05);
}

.mappa-shop-btn:hover {
    background: #fff;
    color: #000;
}

.footer-copyright {
    margin-top: 60px;
    font-size: 11px;
    font-weight: 700;
    opacity: 0.5;
}

@media (max-width: 1024px) {
    .fixed-side-label {
        display: none;
    }
    .footer-bottom-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 30px;
    }
    .footer-main-logo .logo-text {
        letter-spacing: -2px;
    }
}

@media (max-width: 768px) {
    .news-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
    .news-meta {
        min-width: auto;
    }
    .news-title-text {
        font-size: 16px;
    }
}

/* MARQUEE RUNNING TEXT */
.marquee-container {
    width: 100vw;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 10;
    margin-top: -1px; 
}

.marquee-line {
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
    display: flex;
    align-items: center;
    padding: 2px 0; 
}

.marquee-line.bg-blue { background-color: #6bb0ff; }
.marquee-line.bg-purple { background-color: #bd5cff; }
.marquee-line.bg-pink-red { background-color: #ff3366; }
.marquee-line.bg-yellow { background-color: #ffdf00; }

.marquee-content {
    display: flex;
    width: max-content;
}

.marquee-content span {
    font-family: 'Inter', sans-serif;
    font-size: clamp(2rem, 5vw, 4.5rem);
    font-weight: 900;
    letter-spacing: -4px;
    color: #000;
    text-transform: uppercase;
    line-height: 0.85;
    padding-right: 15px;
}

.scroll-left { animation: marqueeLeft 25s linear infinite; }
.scroll-right { animation: marqueeRight 25s linear infinite; }

@keyframes marqueeLeft {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes marqueeRight {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

/* =========================================
   EXPAND SCROLL EFFECT (PAYPAL STYLE 2)
========================================= */
.expand-section {
    height: 200vh; /* (Cũ là 300vh) - Giảm xuống cho đỡ phải cuộn tay không */
    background: #000000; 
    position: relative;
    --logo-height: 80px;  /* Chiều cao của thanh logo */
    --frame-size: 20px;   /* Độ dày của viền trắng bao quanh (trái, phải, dưới) */
}

.expand-sticky {
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.expand-bg-text {
    position: absolute;
    top: 15vh;
    left: 0;
    width: 100%;
    text-align: center;
    font-size: clamp(3rem, 8vw, 6.5rem);
    font-weight: 900;
    color: #ffffff;
    z-index: 0;
    line-height: 1.1;
    letter-spacing: -2px;
    will-change: transform, opacity;
}

.expand-clip {
    --clip-top: 35vh;
    --clip-bottom: 10vh;
    --clip-x: 25vw;
    --clip-r: 30px;
    
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    clip-path: inset(var(--clip-top) var(--clip-x) var(--clip-bottom) var(--clip-x) round var(--clip-r));
    -webkit-clip-path: inset(var(--clip-top) var(--clip-x) var(--clip-bottom) var(--clip-x) round var(--clip-r));
    will-change: clip-path;
    background: #fff;
}

.expand-logo-bar {
    position: absolute;
    top: var(--clip-top);
    left: 0;     /* ĐÃ SỬA: Ép sát lề trái của khung bị cắt */
    width: 100%; /* ĐÃ SỬA: Rộng 100% để che kín mép ảnh, không bị lòi 2 bên */
    height: 80px;
    background: #ffffff;
    color: #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 1px;
    z-index: 2;
    will-change: transform, opacity, top;
}

.expand-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transform: scale(1.15); 
    will-change: transform;
    z-index: 1;
}

/* ĐÃ SỬA: CHỮ "he cute :D" GÓC DƯỚI BÊN PHẢI */
.expand-text {
    position: absolute;
    bottom: 8vh;       
    right: 5%;         
    text-align: right; 
    font-size: clamp(2rem, 5vw, 4.5rem); 
    font-weight: 900;
    color: #fff;
    z-index: 2;
    letter-spacing: -2px;
    margin: 0;
    pointer-events: none; 
    
    /* --- PHẦN MỚI CẬP NHẬT --- */
    opacity: 0;
    transform: translateX(150px);
    /* Giao việc chuyển động cho CSS xử lý mượt mà */
    transition: transform 1.2s cubic-bezier(0.19, 1, 0.22, 1), opacity 1.2s ease;
}

/* Khi có class active, chữ sẽ tự động trượt vào */
.expand-text.active {
    opacity: 1;
    transform: translateX(0);
}

.news, .reviews {
    position: relative;
    z-index: 10; 
}

/*=========================================
   TỐI ƯU HÓA HIỂN THỊ CHO ĐIỆN THOẠI (MOBILE)
========================================= */
@media (max-width: 768px) {
    
    /* 1. THANH MENU VÀ OVERLAY */
    nav {
        padding: 15px 5%; 
    }
    .nav-controls {
        gap: 15px; 
    }
    .side-menu {
        padding: 80px 8%;
        width: 100%; 
    }
    .side-menu-links a {
        font-size: 1.5rem; 
    }

    /* 2. KHU VỰC HERO (THE STORY STARTS HERE) */
    .hero {
        padding: 0 5% 60px; 
    }
    .hero-title h1 {
        font-size: clamp(3rem, 15vw, 5rem) !important; 
        letter-spacing: -2px !important;
    }

    /* 3. KHU VỰC TIN TỨC (LATEST NEWS) */
    .news {
        padding: 80px 0 !important; 
    }
    .news-header-wrapper {
        margin-bottom: 40px;
    }
    .news-item {
        padding: 20px 0;
        flex-direction: column; 
        align-items: flex-start;
        gap: 12px;
    }

    .marquee-content span {
        letter-spacing: -2px;
    }

    .news-meta {
        gap: 15px;
    }
    .news-title-text {
        font-size: 16px;
        width: 100%; 
    }
    /* 6. EXPAND SCROLL EFFECT (MOBILE) */
    .expand-bg-text {
        top: 12vh;
    }
    .expand-logo-bar {
        height: 60px;
        font-size: 1.5rem;
    }

    /* 4. KHU VỰC FOOTER (CHÂN TRANG) */
    .footer {
        padding-top: 80px;
        padding-bottom: 30px;
        min-height: auto; 
    }
    .footer-bottom-row {
        gap: 30px;
    }
    .footer-links {
        flex-wrap: wrap; 
        gap: 15px 20px; 
    }
    .footer-links a {
        padding: 0; 
    }
    .footer-links .divider {
        display: none; 
    }
    .mappa-shop-btn {
        width: 100%; 
        justify-content: center; 
    }

    /* 5. KHU VỰC ĐÁNH GIÁ (REVIEWS MOBILE) */
    .reviews {
        padding: 80px 0 !important;
    }
    .reviews-grid {
        grid-template-columns: 1fr; 
        gap: 25px;
        padding: 0 5%;
    }
    .review-card {
        padding: 40px 25px 30px;
    }

    /* 6. EXPAND SCROLL EFFECT (MOBILE) */
    .expand-clip {
        clip-path: inset(20vh 5vw 20vh 5vw round 30px);
        -webkit-clip-path: inset(20vh 5vw 20vh 5vw round 30px);
    }
    .expand-logo-bar {
        height: 60px;
        font-size: 1.3rem;
    }
    .reviews-action {
        margin-top: 40px;
    }
    .write-review-btn {
        width: 100%;
        justify-content: center;
    }
}