/* ============================================
   F168 NEWS - STYLE.CSS (OPTIMIZED)
   Mobile-first, Performance, Accessibility
   ============================================ */

:root {
    --bg1: #087bc7;
    --bg2: #3157c8;
    --bg3: #662bb0;
    --ink: #10203a;
    --muted: #52627a;
    --white: #fff;
    --glass: rgba(255, 255, 255, .78);
    --glass-soft: rgba(255, 255, 255, .56);
    --line: rgba(255, 255, 255, .42);
    --accent: #5d72ff;
    --accent2: #20b9e8;
    --shadow: 0 24px 70px rgba(14, 29, 72, .18);
    --max: 1240px;
    --touch-min: 44px;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: Inter, system-ui, -apple-system, sans-serif;
    color: var(--ink);
    line-height: 1.6;
    background-image: url("/images/ChatGPT Image 22_26_52 17 thg 7, 2026.png");
    background-repeat: no-repeat;
    background-position: center calc(50% + 35px);
    background-size: cover;
    background-attachment: fixed;
    background-color: #fbaa19;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

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

button {
    font: inherit;
    cursor: pointer;
}

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

.wrap {
    width: min(var(--max), 100%);
    margin: auto;
    padding: 0 28px;
}

/* ============================================
   HEADER & NAVIGATION (MOBILE-FIRST)
   ============================================ */

header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, .92);
    backdrop-filter: blur(22px) saturate(160%);
    -webkit-backdrop-filter: blur(22px) saturate(160%);
    border-bottom: 1px solid rgba(255, 255, 255, .18);
}

.nav {
    min-height: 56px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 16px;
    max-width: var(--max);
    margin: auto;
    padding: 10px 20px;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -.04em;
    z-index: 2;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

/* Mobile Hamburger Menu */
.nav-toggle {
    display: none;
    width: var(--touch-min);
    height: var(--touch-min);
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    align-items: center;
    justify-content: center;
    z-index: 2;
}

.nav-links {
    display: flex;
    justify-content: center;
    gap: 28px;
    list-style: none;
    margin: 0;
    padding: 0;
    transition: transform .3s ease, opacity .3s ease;
}

.nav-links a {
    color: rgba(255, 255, 255, .82);
    text-decoration: none;
    font-size: .92rem;
    font-weight: 500;
    transition: color .2s;
    padding: 8px 0;
    display: inline-block;
    min-height: var(--touch-min);
    line-height: var(--touch-min);
}

.nav-links a:hover,
.nav-links a:focus {
    color: #fff;
    outline: 2px solid rgba(251, 140, 0, .5);
    outline-offset: 4px;
    border-radius: 4px;
}

.nav-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    z-index: 2;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .nav {
        grid-template-columns: auto 1fr auto;
        padding: 8px 16px;
        min-height: 56px;
    }

    .nav .logo {
        color: #ffffff;
        font-weight: 700;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    }

    .nav-actions .btn-ghost {
        background: rgba(255, 255, 255, .15);
        color: #ffffff;
        border: 1px solid rgba(255, 255, 255, .3);
        font-weight: 600;
    }

    .nav-actions .btn-solid {
        background: linear-gradient(135deg, #fb8c00, #ff6f00);
        color: #ffffff;
        font-weight: 700;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    }

    .nav-toggle {
        display: flex;
        order: 3;
        background: rgba(251, 140, 0, .2);
        border: 1px solid rgba(251, 140, 0, .4);
        border-radius: 10px;
        color: #ffffff;
        font-size: 1.3rem;
        font-weight: 700;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    }

    .nav-toggle:hover,
    .nav-toggle:focus {
        background: rgba(251, 140, 0, .4);
        border-color: rgba(251, 140, 0, .7);
        color: #fb8c00;
    }

    .nav-links {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, .96);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 40px;
        gap: 0;
        transform: translateX(100%);
        opacity: 0;
        pointer-events: none;
    }

    .nav-links.active {
        transform: translateX(0);
        opacity: 1;
        pointer-events: all;
        background: rgba(10, 15, 30, .98);
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links li:hover {
        background: rgba(255, 255, 255, .05);
    }

    .nav-links a {
        display: block;
        padding: 16px 20px;
        font-size: 1.1rem;
        font-weight: 600;
        color: #ffffff !important;
        border-bottom: 1px solid rgba(255, 255, 255, .15);
        min-height: auto;
        line-height: 1.5;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
    }

    .nav-links a:hover,
    .nav-links a:focus {
        color: #fb8c00 !important;
        background: rgba(251, 140, 0, .1);
    }

    .nav-actions {
        gap: 8px;
    }

    .nav-actions .btn {
        padding: 8px 14px;
        font-size: .8rem;
        min-height: var(--touch-min);
    }
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    border: 1px solid rgba(255, 255, 255, .3);
    border-radius: 999px;
    padding: 11px 19px;
    cursor: pointer;
    text-decoration: none;
    font-weight: 700;
    transition: .22s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-height: var(--touch-min);
    font-size: .9rem;
}

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

.btn:active {
    transform: translateY(0);
}

.btn-ghost {
    background: linear-gradient(135deg, #ffffff, #fb8c00);
    color: #10203a;
}

.btn-solid {
    min-width: 160px;
    padding: 14px 28px;
    font-size: .95rem;
    font-weight: 800;
    border-radius: 999px;
    background: linear-gradient(135deg, #ffffff, #fb8c00);
    color: #10203a;
    border: none;
    box-shadow: 0 12px 30px rgba(251, 140, 0, .28);
    transition: transform .25s ease, box-shadow .25s ease;
}

.btn-solid:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 18px 38px rgba(251, 140, 0, .38);
}

@media (max-width: 480px) {
    .btn-solid {
        min-width: 140px;
        padding: 12px 20px;
        font-size: .85rem;
    }
}

/* ============================================
   MAIN & SECTIONS
   ============================================ */

main {
    border-radius: 32px;
    overflow: hidden;
}

section:not(.hero) {
    position: relative;
    margin: 1.5% 3% 5% 3%;
    overflow: hidden;
    background: rgba(255, 255, 255, .72);
    border: 1px solid rgba(255, 255, 255, .65);
    border-radius: 28px;
    box-shadow: 0 18px 50px rgba(14, 29, 72, .12), inset 0 1px 0 rgba(255, 255, 255, .8);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
}

@media (max-width: 768px) {
    section:not(.hero) {
        margin: 3% 2% 6% 2%;
        border-radius: 20px;
    }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    padding: 60px 28px;
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 50px;
    align-items: center;
    background: rgba(255, 255, 255, .66);
    border: 1px solid rgba(255, 255, 255, .58);
    box-shadow: var(--shadow);
    backdrop-filter: blur(3px) saturate(155%);
    -webkit-backdrop-filter: blur(28px) saturate(145%);
    border-radius: 32px;
    margin: 1.5% 3% 5% 3%;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 9px 20px;
    margin: 10px 0 15px 0;
    border-radius: 999px;
    background: rgba(255, 255, 255, .18);
    border: 1px solid rgba(255, 255, 255, .5);
    color: #fb8c00;
    font-size: .75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .12em;
    box-shadow: 0 8px 25px rgba(251, 140, 0, .18), inset 0 1px 0 rgba(255, 255, 255, .45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    animation: badgeFloat 3s ease-in-out infinite, badgeGlow 2.5s ease-in-out infinite alternate;
}

.eyebrow-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ffd166;
    box-shadow: 0 0 8px #ffd166, 0 0 18px rgba(255, 209, 102, .8);
    animation: dotPulse 1.6s ease-in-out infinite;
}

.hero h1 {
    margin: 0;
    max-width: 760px;
    font-size: clamp(2rem, 5vw, 4rem);
    line-height: 1.1;
    letter-spacing: -.05em;
    color: var(--ink);
}

.hero h1 img {
    display: block;
    width: 260px;
    max-width: 80%;
    height: auto;
    object-fit: contain;
    margin-bottom: 16px;
}

.hero p {
    max-width: 620px;
    color: var(--muted);
    font-size: clamp(.95rem, 1.2vw, 1.08rem);
    margin: 20px 0 0;
}

.hero-cta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.hero-card {
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 20px;
    padding: 28px 22px;
    color: #ffffff;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15), inset 0 1px 2px rgba(255, 255, 255, 0.2);
    animation: fadeInUp 1s cubic-bezier(0.25, 1, 0.5, 1) forwards;
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease, border-color 0.4s ease;
}

.hero-card:hover {
    transform: translateY(-10px);
    border-color: #ffd700;
    box-shadow: 0 20px 40px rgba(251, 170, 25, 0.35), 0 0 20px rgba(255, 215, 0, 0.2);
}

.hero-card h3 {
    color: #000000;
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    margin-top: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero-card p {
    color: #000000;
    font-size: clamp(.85rem, 1vw, .95rem);
    opacity: 0.9;
}

.stats {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-top: 20px;
}

.stat {
    background: rgba(0, 0, 0, 0.688);
    padding: 12px 8px;
    border-radius: 12px;
    text-align: center;
    flex: 1;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, background 0.3s ease;
    min-width: 0;
}

.stat:hover {
    transform: scale(1.05);
    background: rgba(0, 0, 0, 0.4);
}

.stat strong {
    display: block;
    font-size: clamp(1rem, 1.3vw, 1.3rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 4px;
    letter-spacing: -0.5px;
    animation: pulseGlow 2s infinite alternate ease-in-out;
}

.stat span {
    font-size: clamp(.7rem, .8vw, .8rem);
    color: #ffe0b2;
    display: block;
    font-weight: 500;
}

@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 30px;
        padding: 40px 20px;
    }

    .hero h1 img {
        width: 200px;
    }

    .stats {
        gap: 8px;
    }

    .stat {
        padding: 10px 6px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 30px 16px;
        margin: 2% 2% 4% 2%;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero h1 img {
        width: 160px;
    }

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

    .hero-cta .btn {
        width: 100%;
        text-align: center;
    }

    .stats {
        flex-wrap: wrap;
    }

    .stat {
        flex: 1 1 calc(50% - 8px);
        min-width: calc(50% - 8px);
    }
}

/* ============================================
   SECTION HEADINGS
   ============================================ */

.section {
    padding: 50px 28px;
}

.section-head {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: end;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.section h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.6rem);
    letter-spacing: -.04em;
    margin: 0;
    line-height: 1.2;
}

.section-head p {
    max-width: 460px;
    color: var(--muted);
    margin: 0;
    font-size: clamp(.9rem, 1vw, 1rem);
}

@media (max-width: 768px) {
    .section {
        padding: 36px 20px;
    }

    .section-head {
        display: block;
    }

    .section-head p {
        margin-top: 10px;
    }
}

/* ============================================
   ABOUT SECTION
   ============================================ */

#gioi-thieu {
    padding: 50px 40px;
}

#gioi-thieu .section-head {
    max-width: 760px;
    margin-bottom: 36px;
}

#gioi-thieu::before {
    content: "";
    position: absolute;
    width: 420px;
    height: 420px;
    top: -180px;
    right: -120px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(251, 140, 0, .16), transparent 70%);
    pointer-events: none;
    animation: aboutGlow 8s ease-in-out infinite alternate;
}

.about {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-content p {
    color: var(--muted);
    margin-bottom: 16px;
    font-size: clamp(.9rem, 1vw, 1rem);
}

.about-content strong {
    color: #fb8c00;
    font-weight: 800;
}

.checks {
    display: grid;
    gap: 10px;
    margin-top: 20px;
}

.check {
    display: flex;
    gap: 10px;
    align-items: start;
    opacity: 0;
    animation: checkReveal .6s ease forwards;
}

.check:nth-child(1) {
    animation-delay: .15s;
}

.check:nth-child(2) {
    animation-delay: .3s;
}

.check:nth-child(3) {
    animation-delay: .45s;
}

.check:nth-child(4) {
    animation-delay: .6s;
}

.check b {
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    border-radius: 50%;
    background: linear-gradient(135deg, #fb8c00, #ffc107);
    color: #fff;
    font-size: .8rem;
    box-shadow: 0 5px 15px rgba(251, 140, 0, .28);
}

.about-highlight {
    position: relative;
    overflow: hidden;
    min-height: 320px;
    animation: aboutCardReveal .9s cubic-bezier(.2, .8, .2, 1) both, aboutCardFloat 5s ease-in-out infinite 1s;
    padding: 28px;
    border-radius: 22px;
    background: rgba(255, 255, 255, .48);
    border: 1px solid rgba(255, 255, 255, .7);
}

.about-highlight::after {
    content: "";
    position: absolute;
    width: 180px;
    height: 180px;
    right: -70px;
    bottom: -80px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(251, 140, 0, .22), transparent 70%);
}

.about-highlight h3 {
    position: relative;
    z-index: 1;
    max-width: 420px;
    font-size: clamp(1.4rem, 2.5vw, 2rem);
    line-height: 1.15;
    letter-spacing: -.04em;
    margin: 0 0 12px;
}

.about-highlight p {
    position: relative;
    z-index: 1;
    color: var(--muted);
    font-size: clamp(.9rem, 1vw, 1rem);
}

.about-stats {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-top: 24px;
}

.about-stat {
    padding: 14px 8px;
    text-align: center;
    border-radius: 16px;
    background: rgba(255, 255, 255, .5);
    border: 1px solid rgba(255, 255, 255, .7);
    transition: transform .3s ease, background .3s ease, box-shadow .3s ease;
}

.about-stat:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, .8);
    box-shadow: 0 12px 25px rgba(14, 29, 72, .12);
}

.about-stat strong {
    display: block;
    font-size: clamp(1.1rem, 1.3vw, 1.3rem);
    color: #fb8c00;
}

.about-stat span {
    display: block;
    margin-top: 3px;
    color: var(--muted);
    font-size: clamp(.65rem, .75vw, .72rem);
}

@media (max-width: 900px) {
    #gioi-thieu {
        padding: 36px 24px;
    }

    .about {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-highlight {
        min-height: auto;
    }
}

/* ============================================
   GUIDE SECTION
   ============================================ */

.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.guide-card {
    padding: 24px;
    border-radius: 22px;
    background: rgba(255, 255, 255, .5);
    border: 1px solid rgba(255, 255, 255, .7);
    transition: transform .3s ease, box-shadow .3s ease, background .3s ease;
}

.guide-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, .7);
    box-shadow: 0 16px 34px rgba(14, 29, 72, .12);
}

.guide-card .icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    margin-bottom: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, #fb8c00, #ffc107);
    color: #fff;
    font-size: 1.3rem;
    font-weight: 800;
    box-shadow: 0 10px 25px rgba(251, 140, 0, .3);
}

.guide-card h3 {
    margin: 0 0 8px;
    font-size: 1.1rem;
}

.guide-card p {
    margin: 0;
    color: var(--muted);
    font-size: clamp(.85rem, .9vw, .92rem);
    line-height: 1.65;
}

.guide-note {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(251, 140, 0, .15);
    color: #fb8c00;
    font-size: .8rem;
    font-weight: 700;
}

.guide-note span {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(251, 140, 0, .12);
    color: #fb8c00;
    font-size: .75rem;
    font-weight: 800;
}

.guide-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-top: 32px;
    padding: 20px 24px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(251, 140, 0, .1), rgba(255, 193, 7, .08));
    border: 1px solid rgba(251, 140, 0, .18);
    flex-wrap: wrap;
}

.guide-footer strong {
    display: block;
    margin-bottom: 5px;
    font-size: 1rem;
}

.guide-footer span {
    color: var(--muted);
    font-size: .85rem;
}

@media (max-width: 900px) {
    .guide-grid {
        grid-template-columns: 1fr;
    }

    .guide-footer {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================
   CONTACT SECTION
   ============================================ */

.contact-section {
    padding: 60px 40px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.contact-card {
    display: flex;
    gap: 18px;
    padding: 24px;
    min-height: 200px;
    border-radius: 24px;
    background: rgba(255, 255, 255, .52);
    border: 1px solid rgba(255, 255, 255, .72);
    transition: transform .35s ease, background .35s ease, box-shadow .35s ease;
}

.contact-card:hover {
    transform: translateY(-6px);
    background: rgba(255, 255, 255, .78);
    box-shadow: 0 20px 45px rgba(14, 29, 72, .14);
}

.contact-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: linear-gradient(135deg, #fb8c00, #ffc107);
    font-size: 1.4rem;
    box-shadow: 0 10px 24px rgba(251, 140, 0, .25);
    transition: transform .35s ease;
}

.contact-card:hover .contact-icon {
    transform: rotate(-6deg) scale(1.08);
}

.contact-content {
    flex: 1;
    min-width: 0;
}

.contact-label {
    display: block;
    margin-bottom: 6px;
    color: #fb8c00;
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.contact-content h3 {
    margin: 0 0 8px;
    font-size: clamp(1rem, 1.2vw, 1.2rem);
    word-break: break-word;
}

.contact-content p {
    margin: 0;
    color: var(--muted);
    font-size: clamp(.85rem, .9vw, .9rem);
    line-height: 1.65;
}

.contact-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 14px;
    color: #fb8c00;
    font-size: .85rem;
    font-weight: 800;
    text-decoration: none;
    min-height: var(--touch-min);
}

.contact-link span {
    transition: transform .25s ease;
}

.contact-link:hover span {
    transform: translateX(5px);
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.social-links a {
    padding: 7px 14px;
    border-radius: 999px;
    background: rgba(251, 140, 0, .1);
    color: #d87500;
    font-size: .8rem;
    font-weight: 700;
    text-decoration: none;
    transition: .25s ease;
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
}

.social-links a:hover {
    background: #fb8c00;
    color: #fff;
}

.contact-info {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 16px;
    margin-top: 20px;
    padding: 20px 24px;
    border-radius: 20px;
    background: rgba(16, 32, 58, .06);
    border: 1px solid rgba(16, 32, 58, .08);
}

.contact-info span {
    display: block;
    margin-bottom: 6px;
    color: #fb8c00;
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.contact-info strong {
    display: block;
    font-size: clamp(.85rem, .9vw, .9rem);
    line-height: 1.6;
}

@media (max-width: 900px) {
    .contact-section {
        padding: 40px 24px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .contact-card {
        flex-direction: column;
        min-height: auto;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
}

/* ============================================
   PREMIUM CTA
   ============================================ */

.cta-premium {
    position: relative;
    min-height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 70px 28px;
    overflow: hidden;
    border-radius: 28px;
    background: linear-gradient(135deg, rgba(9, 28, 74, .96), rgba(27, 48, 112, .94) 48%, rgba(88, 35, 130, .96));
    color: #fff;
}

.cta-glow {
    position: absolute;
    width: 350px;
    height: 350px;
    border-radius: 50%;
    filter: blur(70px);
    opacity: .3;
    pointer-events: none;
    animation: ctaFloat 8s ease-in-out infinite alternate;
}

.cta-glow-left {
    top: -180px;
    left: -100px;
    background: #fb8c00;
}

.cta-glow-right {
    right: -120px;
    bottom: -200px;
    background: #5d72ff;
    animation-delay: 1s;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 720px;
    text-align: center;
}

.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 18px;
    padding: 8px 15px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, .2);
    color: rgba(255, 255, 255, .9);
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .1em;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ffb300;
    box-shadow: 0 0 0 0 rgba(255, 179, 0, .7);
    animation: pulseDot 2s infinite;
}

.cta-premium h2 {
    margin: 0;
    font-size: clamp(1.8rem, 4vw, 3.5rem);
    line-height: 1.1;
    letter-spacing: -.05em;
}

.cta-premium h2 span {
    display: block;
    background: linear-gradient(135deg, #ffd166, #fb8c00);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.cta-premium p {
    max-width: 560px;
    margin: 20px auto 0;
    color: rgba(255, 255, 255, .72);
    font-size: clamp(.9rem, 1vw, 1rem);
    line-height: 1.7;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    margin-top: 28px;
    flex-wrap: wrap;
}

.btn-cta-main {
    min-width: 170px;
    padding: 14px 24px;
    border: 0;
    background: linear-gradient(135deg, #fff, #ffb347);
    color: #17233e;
    box-shadow: 0 12px 30px rgba(251, 140, 0, .28);
    font-weight: 800;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: var(--touch-min);
}

.btn-cta-main span {
    display: inline-block;
    transition: transform .25s ease;
}

.btn-cta-main:hover span {
    transform: translateX(5px);
}

.btn-cta-outline {
    min-width: 150px;
    padding: 13px 22px;
    border: 1px solid rgba(255, 255, 255, .35);
    background: rgba(255, 255, 255, .08);
    color: #fff;
    border-radius: 999px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: var(--touch-min);
    transition: .25s ease;
}

.btn-cta-outline:hover {
    background: rgba(255, 255, 255, .16);
}

.cta-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.cta-stat strong {
    display: block;
    font-size: clamp(1.2rem, 1.5vw, 1.5rem);
    font-weight: 800;
    color: #fff;
}

.cta-stat span {
    display: block;
    margin-top: 3px;
    color: rgba(255, 255, 255, .55);
    font-size: clamp(.65rem, .75vw, .75rem);
}

.cta-divider {
    width: 1px;
    height: 36px;
    background: rgba(255, 255, 255, .2);
}

@media (max-width: 600px) {
    .cta-premium {
        min-height: auto;
        padding: 50px 20px;
    }

    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

    .btn-cta-main,
    .btn-cta-outline {
        width: 100%;
    }

    .cta-stats {
        gap: 12px;
    }

    .cta-divider {
        display: none;
    }
}

/* ============================================
   FOOTER
   ============================================ */

footer {
    padding: 32px 20px 24px;
    color: rgba(255, 255, 255, .78);
}

.footer-container {
    width: min(var(--max), 100%);
    margin: auto;
    padding: 24px;
    border-radius: 24px;
    background: linear-gradient(135deg, rgba(8, 24, 70, .58), rgba(20, 36, 95, .38));
    border: 1px solid rgba(255, 255, 255, .2);
    box-shadow: 0 24px 70px rgba(5, 18, 58, .25), inset 0 1px 0 rgba(255, 255, 255, .16);
    backdrop-filter: blur(26px) saturate(140%);
    -webkit-backdrop-filter: blur(26px) saturate(140%);
}

.footer-top {
    display: grid;
    grid-template-columns: 1.2fr 1.2fr 1.5fr .9fr;
    gap: 16px;
}

.footer-box {
    min-height: 260px;
    padding: 22px;
    border-radius: 20px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .14);
    transition: transform .3s ease, background .3s ease, border-color .3s ease;
}

.footer-box:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, .13);
    border-color: rgba(255, 255, 255, .3);
}

.footer-logo {
    margin-bottom: 14px;
}

.footer-logo img {
    width: 100px;
    height: auto;
    object-fit: contain;
    border-radius: 8px;
}

.footer-box h3 {
    margin: 0 0 10px;
    color: #fff;
    font-size: 1.15rem;
}

.footer-box h4 {
    margin: 0 0 16px;
    color: #fff;
    font-size: 1rem;
}

.footer-box h5 {
    margin: 0 0 10px;
    color: #ffd166;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .06em;
}

.footer-box p {
    margin: 0;
    color: rgba(255, 255, 255, .68);
    font-size: .85rem;
    line-height: 1.65;
}

.footer-status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 18px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(54, 211, 153, .12);
    border: 1px solid rgba(54, 211, 153, .25);
    color: #a7f3d0;
    font-size: .72rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #36d399;
    box-shadow: 0 0 10px #36d399;
    animation: statusPulse 1.8s infinite;
}

.footer-info {
    display: grid;
    gap: 12px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.footer-info li {
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-size: .8rem;
}

.footer-info strong {
    color: #ffd166;
    font-size: .7rem;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.footer-info span,
.footer-info a {
    color: rgba(255, 255, 255, .7);
    text-decoration: none;
    line-height: 1.5;
    word-break: break-word;
}

.footer-info a:hover {
    color: #fff;
}

.footer-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.footer-links {
    display: grid;
    gap: 8px;
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links a {
    color: rgba(255, 255, 255, .68);
    text-decoration: none;
    font-size: .8rem;
    transition: .2s;
    display: inline-block;
    min-height: var(--touch-min);
    line-height: var(--touch-min);
}

.footer-links a:hover {
    color: #ffd166;
    padding-left: 4px;
}

.representative-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    margin-bottom: 16px;
    border-radius: 14px;
    background: rgba(255, 255, 255, .08);
}

.representative-avatar {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffd166, #fb8c00);
    color: #10203a;
    font-weight: 800;
    font-size: .75rem;
}

.representative-card strong,
.open-time strong {
    display: block;
    color: #fff;
    font-size: .78rem;
}

.representative-card span,
.open-time span {
    display: block;
    margin-top: 2px;
    color: rgba(255, 255, 255, .6);
    font-size: .75rem;
}

.open-time {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 12px 0;
    border-top: 1px solid rgba(255, 255, 255, .12);
    border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.time-icon {
    font-size: 1.4rem;
    color: #ffd166;
}

.footer-social {
    display: flex;
    gap: 8px;
    margin-top: auto;
    padding-top: 18px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, .1);
    border: 1px solid rgba(255, 255, 255, .16);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    transition: .25s;
    min-height: var(--touch-min);
    min-width: var(--touch-min);
}

.footer-social a:hover {
    transform: translateY(-4px);
    background: #fb8c00;
    color: #10203a;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid rgba(255, 255, 255, .16);
    color: rgba(255, 255, 255, .5);
    font-size: .72rem;
}

.footer-bottom a {
    color: #ffd166;
    text-decoration: none;
}

.footer-bottom a:hover {
    color: #fff;
}

@media (max-width: 1024px) {
    .footer-top {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .footer-container {
        padding: 16px;
    }

    .footer-top {
        grid-template-columns: 1fr;
    }

    .footer-box {
        min-height: auto;
        padding: 18px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }
}

/* ============================================
   FAQ SECTION (NEW)
   ============================================ */

.faq-section {
    padding: 50px 40px;
}

.faq-grid {
    display: grid;
    gap: 12px;
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: rgba(255, 255, 255, .55);
    border: 1px solid rgba(255, 255, 255, .75);
    border-radius: 18px;
    overflow: hidden;
    transition: box-shadow .3s ease;
}

.faq-item:hover {
    box-shadow: 0 8px 24px rgba(14, 29, 72, .1);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 24px;
    cursor: pointer;
    font-weight: 700;
    font-size: clamp(.9rem, 1vw, 1rem);
    color: var(--ink);
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    min-height: var(--touch-min);
}

.faq-question::after {
    content: "+";
    font-size: 1.4rem;
    color: #fb8c00;
    font-weight: 300;
    transition: transform .3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease, padding .3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 24px 18px;
    margin: 0;
    color: var(--muted);
    font-size: clamp(.85rem, .9vw, .95rem);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .faq-section {
        padding: 36px 20px;
    }

    .faq-question {
        padding: 14px 18px;
    }

    .faq-answer p {
        padding: 0 18px 14px;
    }
}

/* ============================================
   BREADCRUMB (NEW)
   ============================================ */

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    margin: 0 3%;
    font-size: .8rem;
    color: var(--muted);
    flex-wrap: wrap;
}

.breadcrumb a {
    color: #fb8c00;
    transition: .2s;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

.breadcrumb-sep {
    color: rgba(255, 255, 255, .4);
}

.breadcrumb-current {
    color: var(--ink);
    font-weight: 600;
}

@media (max-width: 768px) {
    .breadcrumb {
        padding: 10px 16px;
        margin: 0 2%;
        font-size: .75rem;
    }
}

/* ============================================
   SKIP LINK (ACCESSIBILITY)
   ============================================ */

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #fb8c00;
    color: #fff;
    padding: 8px 16px;
    z-index: 10000;
    font-weight: 700;
    font-size: .9rem;
    border-radius: 0 0 8px 0;
    transition: top .3s;
}

.skip-link:focus {
    top: 0;
    outline: 3px solid #fff;
    outline-offset: 2px;
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes badgeFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-4px);
    }
}

@keyframes badgeGlow {
    from {
        box-shadow: 0 8px 25px rgba(251, 140, 0, .18), inset 0 1px 0 rgba(255, 255, 255, .45);
    }

    to {
        box-shadow: 0 8px 35px rgba(255, 193, 7, .4), 0 0 20px rgba(255, 193, 7, .18), inset 0 1px 0 rgba(255, 255, 255, .65);
    }
}

@keyframes dotPulse {

    0%,
    100% {
        transform: scale(1);
        opacity: .8;
    }

    50% {
        transform: scale(1.35);
        opacity: 1;
    }
}

@keyframes pulseGlow {
    0% {
        transform: scale(1);
        color: #ffffff;
        text-shadow: 0 0 8px rgba(255, 255, 255, 0.3);
    }

    100% {
        transform: scale(1.04);
        color: #ffeb3b;
        text-shadow: 0 0 12px rgba(255, 235, 59, 0.8), 0 0 20px rgba(251, 170, 25, 0.4);
    }
}

@keyframes aboutContentReveal {
    from {
        opacity: 0;
        transform: translateX(-35px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes aboutCardReveal {
    from {
        opacity: 0;
        transform: translateX(35px) scale(.96);
    }

    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@keyframes checkReveal {
    from {
        opacity: 0;
        transform: translateX(-18px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes aboutCardFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-6px);
    }
}

@keyframes aboutGlow {
    from {
        transform: translate(0, 0) scale(1);
    }

    to {
        transform: translate(-40px, 30px) scale(1.15);
    }
}

@keyframes ctaFloat {
    from {
        transform: translate(0, 0) scale(1);
    }

    to {
        transform: translate(40px, 30px) scale(1.15);
    }
}

@keyframes pulseDot {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 179, 0, .7);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(255, 179, 0, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(255, 179, 0, 0);
    }
}

@keyframes statusPulse {
    0% {
        transform: scale(1);
        opacity: .7;
    }

    50% {
        transform: scale(1.3);
        opacity: 1;
    }

    100% {
        transform: scale(1);
        opacity: .7;
    }
}

/* Scroll margin for anchor links */
#trang-chu,
#gioi-thieu,
#huong-dan,
#lien-he,
#faq,
#danh-gia {
    scroll-margin-top: 80px;
}

@media (max-width: 768px) {

    #trang-chu,
    #gioi-thieu,
    #huong-dan,
    #lien-he,
    #faq,
    #danh-gia {
        scroll-margin-top: 60px;
    }
}