/* ============================================================
   DESIGN TOKENS – Bright Green Club Theme
============================================================ */
:root {
    /* Main green tones */
    --navy: #06351f;
    /* xanh nền đậm nhưng không đen */
    --navy-mid: #075c35;
    /* xanh chủ đạo */
    --navy-light: #0f7a49;
    /* xanh sáng cho card/section */

    /* Accent green */
    --amber: #2fd66f;
    /* xanh lá sáng nổi bật */
    --amber-dark: #13a852;
    /* hover / active */
    --amber-glow: rgba(47, 214, 111, 0.22);

    /* Extra fresh green tones */
    --green-soft: #d8f5df;
    --green-mint: #9ef0b8;
    --green-neon: #64ff92;

    /* Optional warm accent, dùng ít thôi: logo, badge, icon */
    --gold: #d7b85a;
    --gold-dark: #a8872c;
    --gold-glow: rgba(215, 184, 90, 0.2);

    /* Neutral colors */
    --white: #ffffff;
    --off-white: #f4f8ef;
    --gray-200: #dce8dc;
    --gray-500: #7d927f;

    /* Text colors */
    --text-light: #e8f5eb;
    --text-muted: #b8cfc0;

    /* Shape */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* Font sizes */
    --fs-hero: clamp(2.8rem, 6vw, 5.5rem);
    --fs-h2: clamp(1.8rem, 3.5vw, 2.8rem);
    --fs-h3: 1.25rem;

    /* Fonts */
    --font-display: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition: .3s cubic-bezier(.4, 0, .2, 1);
}

/* ============================================================
   RESET & BASE
============================================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--navy);
    color: var(--white);
    overflow-x: hidden;
    line-height: 1.7;
}

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

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

ul {
    list-style: none;
}

/* ============================================================
   UTILITY
============================================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 100px 0;
    background:
        radial-gradient(circle at 16% 50%, rgba(20, 119, 78, .52) 0, rgba(20, 119, 78, .28) 18%, transparent 38%),
        radial-gradient(circle at 96% 36%, rgba(31, 148, 91, .42) 0, rgba(31, 148, 91, .18) 18%, transparent 35%),
        radial-gradient(circle at 56% 118%, rgba(23, 117, 78, .42) 0, rgba(23, 117, 78, .22) 22%, transparent 42%),
        linear-gradient(90deg, #082d27 0%, #063228 43%, #05261f 100%);
}

.section-label {
    display: inline-block;
    font-family: var(--font-display);
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 1rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: var(--fs-h2);
    font-weight: 800;
    line-height: 1.1;
    color: var(--white);
    margin-bottom: 1rem;
}

.section-title span {
    color: var(--amber);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 600px;
    line-height: 1.8;
}

.tag {
    display: inline-block;
    padding: .25rem .8rem;
    border-radius: 99px;
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .05em;
    text-transform: uppercase;
}

.tag-amber {
    background: var(--amber-glow);
    color: var(--amber);
    border: 1px solid rgba(245, 166, 35, .3);
}

.tag-navy {
    background: rgba(255, 255, 255, .08);
    color: var(--text-light);
    border: 1px solid rgba(255, 255, 255, .1);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .8rem 1.8rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-display);
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: var(--amber);
    color: var(--navy);
}

.btn-primary:hover {
    background: var(--amber-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1.5px solid rgba(255, 255, 255, .3);
}

.btn-outline:hover {
    border-color: var(--amber);
    color: var(--amber);
}

/* Fade-in on scroll */
.reveal {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity .7s ease, transform .7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 {
    transition-delay: .1s;
}

.reveal-delay-2 {
    transition-delay: .2s;
}

.reveal-delay-3 {
    transition-delay: .3s;
}

.reveal-delay-4 {
    transition-delay: .4s;
}

/* ============================================================
   NAVBAR
============================================================ */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1.2rem 0;
    transition: background var(--transition), padding var(--transition), box-shadow var(--transition);
}

#navbar.scrolled {
    background: rgba(10, 22, 40, .85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 0 rgba(245, 166, 35, .15);
    padding: .8rem 0;
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.nav-logo {
    font-family: var(--font-display);
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: .45rem;
    flex-shrink: 0;
}

.nav-logo-badge {
    width: 2.65rem;
    height: 2.65rem;
    border-radius: 999px;
    overflow: hidden;
    background: rgba(255, 255, 255, .96);
    border: 1px solid rgba(245, 166, 35, .25);
    box-shadow: 0 6px 18px rgba(0, 0, 0, .18);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    text-decoration: none;
    color: inherit;
}

.nav-logo-badge:hover {
    transform: translateY(-1px);
    border-color: rgba(245, 166, 35, .45);
    box-shadow: 0 8px 22px rgba(0, 0, 0, .24);
}

.nav-logo-badge img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a {
    font-size: .9rem;
    font-weight: 500;
    color: var(--text-light);
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--amber);
    transition: width var(--transition);
}

.nav-links a:hover {
    color: var(--white);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: .5rem 1.2rem;
    font-size: .85rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: .25rem;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--navy);
    z-index: 999;
    padding: 6rem 2rem 2rem;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-menu.open {
    display: flex;
}

.mobile-menu a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
}

.mobile-menu a:hover {
    color: var(--amber);
}

/* ============================================================
   HERO SECTION
============================================================ */
#hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 140px 0 80px;
    background: var(--navy);
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    filter: brightness(.55) saturate(1.1) contrast(1.05);
}

.hero-video-wrap {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    background: #000 url("images/hero-poster.jpg") center/cover no-repeat;
}

.hero-video-yt {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 177.77777778vh;
    height: 100vh;
    min-width: 100vw;
    min-height: 56.25vw;
    transform: translate(-50%, -50%) scale(1.12);
    border: 0;
    pointer-events: none;
    z-index: 1;
}

.hero-video-overlay {
    position: absolute;
    inset: 0;
    z-index: 2;
    background:
        linear-gradient(180deg, rgba(6, 53, 31, .42) 0%, rgba(6, 53, 31, .58) 50%, rgba(6, 53, 31, .72) 100%),
        linear-gradient(135deg, rgba(245, 166, 35, .08), transparent 45%);
    pointer-events: none;
}

/* Grid background pattern */
#hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(245, 166, 35, .02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(245, 166, 35, .02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 1;
}

/* Radial glow */
#hero::after {
    content: '';
    position: absolute;
    top: -30%;
    left: -10%;
    width: 80%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(245, 166, 35, .05) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 1.5rem;
}

.hero-kicker::before {
    content: '';
    width: 32px;
    height: 1px;
    background: var(--amber);
}

.hero-title {
    font-family: var(--font-display);
    font-size: var(--fs-hero);
    font-weight: 800;
    line-height: 1.0;
    letter-spacing: -.02em;
    margin-bottom: 1.5rem;
}

.hero-title .line {
    display: block;
    overflow: hidden;
}

.hero-title .line span {
    display: block;
    animation: slideUp .8s cubic-bezier(.4, 0, .2, 1) both;
}

.hero-title .line:nth-child(2) span {
    animation-delay: .12s;
}

.hero-title .line:nth-child(3) span {
    animation-delay: .24s;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

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

.hero-title .highlight {
    color: var(--amber);
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: 2.5rem;
    line-height: 1.8;
    animation: fadeIn 1s .4s both;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    animation: fadeIn 1s .55s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }

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

/* Floating badge top-right */
.hero-badge {
    position: absolute;
    right: 5%;
    top: 30%;
    display: none;
    /* shown on desktop via media query */
    z-index: 2;
}

.hero-badge-inner {
    width: 200px;
    height: 200px;
    border: 1px solid rgba(245, 166, 35, .25);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    animation: spinSlow 20s linear infinite;
    position: relative;
}

@keyframes spinSlow {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.hero-badge-inner .inner-content {
    animation: spinSlow 20s linear infinite reverse;
}

.hero-badge-num {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--amber);
}

.hero-badge-text {
    font-size: .7rem;
    color: var(--text-muted);
    letter-spacing: .1em;
    text-transform: uppercase;
}

/* Scroll indicator */
.scroll-hint {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .5rem;
    font-size: .75rem;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--text-muted);
    animation: fadeIn 1s .9s both;
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--amber), transparent);
    animation: scrollAnim 2s ease-in-out infinite;
}

@keyframes scrollAnim {

    0%,
    100% {
        transform: scaleY(1);
        opacity: 1;
    }

    50% {
        transform: scaleY(.5);
        opacity: .4;
    }
}

/* ============================================================
   ABOUT SECTION - NEW DESIGN
============================================================ */

#about.about-section {
    position: relative;
    overflow: hidden;
    padding: 70px 0 80px;
    color: #fff;
    background:
        radial-gradient(circle at 78% 0%, rgba(86, 255, 102, 0.75), transparent 32%),
        radial-gradient(circle at 40% 50%, rgba(0, 185, 96, 0.8), transparent 40%),
        linear-gradient(135deg, #006132 0%, #00b85f 55%, #00d76f 100%);
}

#about .about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 70px;
}

#about .section-label {
    display: block;
    margin-bottom: 28px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.9);
}

#about .about-title {
    margin: 0 0 30px;
    font-family: var(--font-display);
    font-size: clamp(42px, 5.5vw, 68px);
    line-height: 1;
    font-weight: 900;
    letter-spacing: -1.5px;
    color: #fff;
}

#about .about-title span {
    color: #42ff8f;
}

#about .about-desc {
    max-width: 620px;
    margin: 0 0 54px;
    font-size: 18px;
    line-height: 1.45;
    font-style: italic;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
}

#about .slogan-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 410px;
    padding: 20px 30px;
    border: 3px solid #39ff8a;
    border-radius: 999px;
    font-size: 25px;
    line-height: 1;
    font-weight: 900;
    font-style: italic;
    color: #fff;
    background: rgba(0, 80, 45, 0.35);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.08) inset,
        0 12px 30px rgba(0, 0, 0, 0.18);
}

#about .about-cards {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

#about .about-card {
    position: relative;
    overflow: hidden;
    min-height: 140px;
    padding: 22px 120px 24px 28px;
    border: none;
    border-radius: 28px;
    background: rgba(0, 75, 46, 0.78);
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.18);
    transition: var(--transition);
}

#about .about-card::before {
    display: none;
}

#about .about-card:hover {
    transform: translateX(6px);
    background: rgba(0, 85, 52, 0.86);
}

#about .about-card-content {
    position: relative;
    z-index: 2;
}

#about .about-card h3 {
    margin: 0 0 12px;
    font-family: var(--font-display);
    font-size: 23px;
    line-height: 1.1;
    font-weight: 900;
    color: #fff;
}

#about .about-card p {
    margin: 0;
    font-size: 15px;
    line-height: 1.35;
    font-style: italic;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.95);
}

#about .about-card-icon {
    position: absolute;
    right: -65px;
    top: 50%;
    width: 135px;
    height: 135px;
    object-fit: contain;
    transform: translateY(-50%);
    opacity: 0.55;
    z-index: 1;
    pointer-events: none;
}

/* ============================================================
   STATS SECTION
============================================================ */
#stats {
    background: var(--navy-mid);
    border-top: 1px solid rgba(255, 255, 255, .06);
    border-bottom: 1px solid rgba(255, 255, 255, .06);
    padding: 60px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1.5rem;
}

.stat-num {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    color: var(--amber);
    line-height: 1;
    margin-bottom: .5rem;
}

.stat-label {
    font-size: .85rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.stat-divider {
    width: 1px;
    background: rgba(255, 255, 255, .08);
    margin: 1rem 0;
    display: none;
}

/* ============================================================
   ACTIVITIES / BLOG SECTION
============================================================ */
#activities {
    background:
        radial-gradient(circle at 28% 22%, rgba(0, 190, 105, 0.28), transparent 28%),
        radial-gradient(circle at 68% 72%, rgba(0, 150, 85, 0.28), transparent 34%),
        linear-gradient(135deg, #103c35 0%, #0b332e 52%, #063128 100%);
    border-top: 2px solid rgba(34, 255, 132, 0.45);
}

.activities-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 3rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.activities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* Featured first card – spans 2 cols */
.activity-card {
    background: var(--navy-mid);
    border: 1px solid rgba(255, 255, 255, .07);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.activity-card:hover {
    border-color: rgba(245, 166, 35, .3);
    transform: translateY(-4px);
}

.activity-card.featured {
    grid-column: span 2;
    flex-direction: row;
}

.card-img {
    background: var(--navy-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: rgba(245, 166, 35, .3);
    flex-shrink: 0;
    overflow: hidden;
}

.card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.activity-card:not(.featured) .card-img {
    height: 180px;
}

.activity-card.featured .card-img {
    width: 45%;
    min-height: 240px;
}

.card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: .6rem;
}

.card-date {
    font-size: .78rem;
    color: var(--text-muted);
}

.card-title {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.3;
}

.activity-card.featured .card-title {
    font-size: 1.3rem;
}

.card-desc {
    font-size: .85rem;
    color: var(--text-muted);
    line-height: 1.6;
    flex: 1;
}

.card-footer {
    margin-top: auto;
    padding-top: .75rem;
}

.card-link {
    font-size: .82rem;
    font-weight: 600;
    color: var(--amber);
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    transition: gap var(--transition);
}

.card-link:hover {
    gap: .6rem;
}

/* ============================================================
   ACHIEVEMENTS / PROJECTS SECTION
============================================================ */

#projects.achievements-section {
    position: relative;
    overflow: hidden;
    padding: 42px 0 88px;
    background:
        radial-gradient(circle at 50% 45%, rgba(0, 120, 70, 0.28), transparent 34%),
        linear-gradient(135deg, #103c35 0%, #0b332e 42%, #072d28 100%);
    color: #fff;
    border-top: 2px solid rgba(34, 255, 132, 0.45);
}

#projects .container {
    position: relative;
    z-index: 2;
}

#projects .achievements-label {
    display: block;
    margin-bottom: 2px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.9);
}

#projects .achievements-title {
    margin: 0 0 26px;
    font-family: var(--font-display);
    font-size: clamp(38px, 4.8vw, 56px);
    line-height: 1;
    font-weight: 900;
    letter-spacing: -1px;
    color: #fff;
}

#projects .achievements-title span {
    color: #39ff83;
}

#projects .tab-content {
    display: none;
}

#projects .tab-content.active {
    display: block;
}

#projects .project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

#projects .project-card {
    min-height: 172px;
    padding: 14px 18px 22px;
    border: none;
    border-radius: 28px;
    background: #2ecc71;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;

    box-shadow:
        7px 8px 0 rgba(0, 95, 52, 0.88),
        0 18px 28px rgba(0, 0, 0, 0.22);

    transition:
        transform var(--transition),
        box-shadow var(--transition),
        background var(--transition);
}

#projects .project-card:hover {
    transform: translateY(-6px);
    background: #35d978;
    box-shadow:
        7px 12px 0 rgba(0, 95, 52, 0.88),
        0 24px 34px rgba(0, 0, 0, 0.28);
}

#projects .project-icon {
    width: 58px;
    height: 58px;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#projects .project-icon img {
    width: 56px;
    height: 56px;
    object-fit: contain;
    display: block;
    opacity: 0.72;
}

#projects .project-card h3 {
    margin: 0 0 10px;
    font-family: var(--font-display);
    font-size: 17px;
    line-height: 1.2;
    font-weight: 900;
    color: #064736;
}

#projects .project-card p {
    margin: 0;
    font-size: 14px;
    line-height: 1.25;
    font-style: italic;
    font-weight: 600;
    color: #fff;
}

/* ============================================================
   TEAM SECTION - NEW DESIGN
============================================================ */

#team.team-section {
    position: relative;
    overflow: hidden;
    padding: 58px 0 80px;
    color: #fff;
    background:
        radial-gradient(circle at 28% 22%, rgba(0, 190, 105, 0.28), transparent 28%),
        radial-gradient(circle at 68% 72%, rgba(0, 150, 85, 0.28), transparent 34%),
        linear-gradient(135deg, #103c35 0%, #0b332e 52%, #063128 100%);
    border-top: 2px solid rgba(34, 255, 132, 0.45);
    padding-bottom: 70px;
}

#team .container {
    position: relative;
    z-index: 2;
}

#team .team-label {
    display: block;
    margin-bottom: 14px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.92);
}

#team .team-title {
    margin: 0 0 16px;
    font-family: var(--font-display);
    font-size: clamp(36px, 4.6vw, 50px);
    line-height: 1.05;
    font-weight: 900;
    letter-spacing: -1px;
    color: #fff;
}

#team .team-title span {
    color: #39ff83;
}

#team .team-desc {
    max-width: 650px;
    margin: 0 0 38px;
    font-size: 15px;
    line-height: 1.35;
    font-weight: 600;
    font-style: italic;
    color: rgba(255, 255, 255, 0.95);
}

#team .team-tabs-nav {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 34px;
}

#team .team-tab-btn {
    min-width: 120px;
    padding: 8px 22px;
    border: 3px solid #31ff86;
    border-radius: 999px;
    background: rgba(0, 170, 85, 0.4);
    color: #fff;
    font-family: var(--font-display);
    font-size: 13px;
    line-height: 1;
    font-weight: 900;
    cursor: pointer;
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.12) inset,
        0 6px 16px rgba(0, 0, 0, 0.18);
    transition:
        transform var(--transition),
        background var(--transition),
        box-shadow var(--transition);
}

#team .team-tab-btn.active,
#team .team-tab-btn:hover {
    background: #10b861;
    transform: translateY(-2px);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.16) inset,
        0 10px 22px rgba(0, 0, 0, 0.24);
}

#team .team-panel {
    display: none;
}

#team .team-panel.active {
    display: block;
}

#team .team-banner {
    max-width: 100%;
    margin: 0 0 32px;
    padding: 28px 42px;
    border: none;
    border-radius: 26px;
    background:
        linear-gradient(135deg, rgba(0, 95, 65, 0.92), rgba(0, 180, 90, 0.92));
    box-shadow: 0 18px 34px rgba(0, 0, 0, 0.22);
}

#team .team-banner h3 {
    margin: 0 0 14px;
    font-family: var(--font-display);
    font-size: 18px;
    line-height: 1.2;
    font-weight: 900;
    font-style: italic;
    color: #fff;
}

#team .team-banner p {
    max-width: 950px;
    margin: 0;
    font-size: 16px;
    line-height: 1.45;
    font-weight: 600;
    font-style: italic;
    color: rgba(255, 255, 255, 0.96);
}

#team .team-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 26px;
}

#team .team-card {
    min-height: 252px;
    padding: 10px 12px 20px;
    border: none;
    border-radius: 22px;
    text-align: center;
    background:
        linear-gradient(180deg, #10b861 0%, #00613f 100%);
    box-shadow: 0 18px 28px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition:
        transform var(--transition),
        box-shadow var(--transition);
}

#team .team-card:hover {
    transform: translateY(-7px);
    box-shadow: 0 24px 34px rgba(0, 0, 0, 0.28);
}

#team .member-photo {
    --face-focus-x: 50%;
    --face-focus-y: 50%;

    width: 100%;
    height: 150px;
    margin-bottom: 12px;
    border-radius: 18px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.12);
}

#team .member-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: var(--face-focus-x) var(--face-focus-y);
    display: block;
}

#team .team-card .role {
    order: 2;
    margin-bottom: 8px;
    font-size: 13px;
    line-height: 1.15;
    font-weight: 900;
    font-style: italic;
    color: #fff;
}

#team .team-card h4 {
    order: 3;
    margin: 0 0 6px;
    font-family: var(--font-display);
    font-size: 16px;
    line-height: 1.2;
    font-weight: 900;
    color: #fff;
}

#team .team-card .info {
    order: 4;
    max-width: 95%;
    margin: 0;
    font-size: 12.5px;
    line-height: 1.25;
    font-weight: 600;
    font-style: italic;
    color: rgba(255, 255, 255, 0.95);
}

/* Focus ảnh từng người */
#team .member-photo.focus-up {
    --face-focus-y: 30%;
}

#team .member-photo.focus-up-light {
    --face-focus-y: 40%;
}

#team .member-photo.focus-up-strong {
    --face-focus-y: 5%;
}

#team .member-photo.focus-down {
    --face-focus-y: 62%;
}

#team .member-photo.focus-down-strong {
    --face-focus-y: 72%;
}

#team .member-photo.focus-left {
    --face-focus-x: 42%;
}

#team .member-photo.focus-right {
    --face-focus-x: 58%;
}

/* ============================================================
   PARTNERS SECTION - LINKED WITH TEAM
============================================================ */

#partners.partners-section {
    position: relative;
    overflow: hidden;
    margin: 0;
    padding: 54px 0 115px;
    min-height: 360px;
    color: #fff;
    background:
        radial-gradient(circle at 28% 22%, rgba(0, 190, 105, 0.28), transparent 28%),
        radial-gradient(circle at 68% 72%, rgba(0, 150, 85, 0.28), transparent 34%),
        linear-gradient(135deg, #103c35 0%, #0b332e 52%, #063128 100%);

    border-top: 2px solid rgba(34, 255, 132, 0.5);
}

#partners.partners-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg,
            rgba(6, 49, 40, 0.18) 0%,
            rgba(6, 49, 40, 0) 24%);
    pointer-events: none;
}

#partners .container {
    position: relative;
    z-index: 2;
}

#partners .partners-header {
    text-align: center;
    margin-bottom: 42px;
}

#partners .partners-label {
    display: block;
    margin-bottom: 10px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.92);
}

#partners .partners-title {
    margin: 0 0 16px;
    font-family: var(--font-display);
    font-size: clamp(34px, 4.2vw, 46px);
    line-height: 1;
    font-weight: 900;
    letter-spacing: -1px;
    color: #fff;
}

#partners .partners-title span {
    color: #39ff83;
}

#partners .partners-desc {
    max-width: 520px;
    margin: 0 auto;
    text-align: center;
    font-size: 14px;
    line-height: 1.35;
    font-weight: 600;
    font-style: italic;
    color: rgba(255, 255, 255, 0.96);
}

#partners .partners-tabs {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 88px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

#partners .partner-tab-btn {
    min-width: 126px;
    padding: 9px 22px;
    border: 3px solid #31ff86;
    border-radius: 999px;
    background: rgba(0, 120, 65, 0.38);
    color: #fff;
    font-family: var(--font-display);
    font-size: 13px;
    line-height: 1;
    font-weight: 900;
    text-transform: uppercase;
    cursor: pointer;
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.12) inset,
        0 8px 18px rgba(0, 0, 0, 0.2);
    transition:
        transform var(--transition),
        background var(--transition),
        box-shadow var(--transition);
}

#partners .partner-tab-btn.active,
#partners .partner-tab-btn:hover {
    background: #10b861;
    transform: translateY(-2px);
    box-shadow:
        0 0 0 1px rgba(255, 255, 255, 0.16) inset,
        0 12px 24px rgba(0, 0, 0, 0.26);
}

/* Marquee logo partners */

#partners .marquee-wrap {
    overflow: hidden;
    position: relative;
    margin-top: 1rem;
}

#partners .marquee-wrap::before,
#partners .marquee-wrap::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 90px;
    z-index: 2;
    pointer-events: none;
}

#partners .marquee-wrap::before {
    left: 0;
    background: linear-gradient(to right, #0e6541, transparent);
}

#partners .marquee-wrap::after {
    right: 0;
    background: linear-gradient(to left, #0e6541, transparent);
}

#partners .marquee-track {
    display: flex;
    gap: 1.5rem;
    width: max-content;
    animation: marquee 30s linear infinite;
}

#partners .marquee-track:hover {
    animation-play-state: paused;
}

@keyframes marquee {
    from {
        transform: translateX(0);
    }

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

#partners .partner-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 170px;
    min-height: 72px;
    padding: 0.8rem 1.4rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(8px);
    flex-shrink: 0;
    transition: var(--transition);
}

#partners .partner-badge:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.18);
}

#partners .partner-badge img {
    max-height: 44px;
    max-width: 180px;
    width: auto;
    object-fit: contain;
    display: block;
}

/* ============================================================
   FOOTER
============================================================ */
footer {
    background:
        radial-gradient(circle at 28% 22%, rgba(0, 190, 105, 0.28), transparent 28%),
        radial-gradient(circle at 68% 72%, rgba(0, 150, 85, 0.28), transparent 34%),
        linear-gradient(135deg, #103c35 0%, #0b332e 52%, #063128 100%);
    /* border-top: 1px solid rgba(255, 255, 255, .06); */
    border-top: 2px solid rgba(34, 255, 132, 0.45);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    font-size: .9rem;
    color: var(--text-muted);
    margin: 1rem 0 1.5rem;
    max-width: 280px;
    line-height: 1.7;
}

.footer-brand .logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: .4rem;
}

.socials {
    display: flex;
    gap: .75rem;
}

.social-btn {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, .1);
    background: rgba(255, 255, 255, .04);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
    transition: var(--transition);
}

.social-btn:hover {
    border-color: var(--amber);
    background: var(--amber-glow);
    color: var(--amber);
}

.footer-col h4 {
    font-family: var(--font-display);
    font-size: .85rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--amber);
    margin-bottom: 1.2rem;
}

.footer-col ul li {
    margin-bottom: .6rem;
}

.footer-col ul li a {
    font-size: .88rem;
    color: var(--text-muted);
    transition: color var(--transition);
}

.footer-col ul li a:hover {
    color: var(--white);
}

.footer-contact-item {
    display: flex;
    gap: .6rem;
    font-size: .85rem;
    color: var(--text-muted);
    margin-bottom: .75rem;
}

.footer-contact-item strong {
    color: var(--white);
    margin-right: .25rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .06);
    padding-top: 1.5rem;
    text-align: center;
    font-size: .8rem;
    color: var(--text-muted);
}

.footer-bottom span {
    color: var(--amber);
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (min-width: 900px) {
    .hero-badge {
        display: flex;
    }
}

@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

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

@media (max-width: 768px) {

    .nav-logo {
        gap: .35rem;
    }

    .nav-logo-badge {
        width: 2.15rem;
        height: 2.15rem;
    }

    .nav-links,
    .nav-cta {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .section {
        padding: 70px 0;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

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

    .activity-card.featured {
        flex-direction: column;
    }

    .activity-card.featured .card-img {
        width: 100%;
        min-height: 160px;
    }

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

    .tour-list {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .hero-title {
        letter-spacing: -.01em;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 992px) {
    #projects .project-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    #projects .achievements-title {
        font-size: clamp(36px, 7vw, 48px);
    }
}

@media (max-width: 640px) {
    #projects.achievements-section {
        padding: 48px 0 64px;
    }

    #projects .project-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    #projects .project-card {
        min-height: auto;
        padding: 18px 18px 24px;
    }

    #projects .achievements-title {
        font-size: 36px;
        line-height: 1.08;
    }

    #projects .project-card h3 {
        font-size: 16px;
    }

    #projects .project-card p {
        font-size: 13.5px;
        line-height: 1.35;
    }
}

@media (max-width: 992px) {
    #about .about-grid {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    #about .about-title {
        font-size: clamp(38px, 10vw, 56px);
    }

    #about .about-desc {
        font-size: 17px;
    }

    #about .slogan-pill {
        min-width: unset;
        width: 100%;
        font-size: 21px;
        text-align: center;
    }

    #about .about-cards {
        gap: 24px;
    }
}

@media (max-width: 576px) {
    #about.about-section {
        padding: 55px 0;
    }

    #about .about-card {
        padding: 22px 90px 24px 22px;
        border-radius: 22px;
    }

    #about .about-card-icon {
        width: 95px;
        height: 95px;
        right: -14px;
        opacity: 0.45;
    }

    #about .about-card h3 {
        font-size: 21px;
    }

    #about .about-card p {
        font-size: 14px;
    }
}

@media (max-width: 992px) {
    #team .team-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    #team .team-banner {
        padding: 24px 28px;
    }

    #team .team-tabs-nav {
        gap: 14px;
    }
}

@media (max-width: 640px) {
    #team.team-section {
        padding: 48px 0 64px;
    }

    #team .team-title {
        font-size: 34px;
    }

    #team .team-desc {
        font-size: 14px;
    }

    #team .team-tabs-nav {
        gap: 10px;
    }

    #team .team-tab-btn {
        width: 100%;
        padding: 10px 18px;
    }

    #team .team-banner {
        padding: 22px;
        border-radius: 22px;
    }

    #team .team-banner p {
        font-size: 14px;
    }

    #team .team-grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }

    #team .team-card {
        max-width: 280px;
        width: 100%;
        margin: 0 auto;
    }

    #team .member-photo {
        height: 170px;
    }
}

@media (max-width: 768px) {
    #partners .partners-tabs {
        gap: 18px;
    }

    #partners .partner-tab-btn {
        min-width: 110px;
        font-size: 12px;
        padding: 8px 18px;
    }
}

@media (max-width: 520px) {
    #partners.partners-section {
        padding: 46px 0 76px;
    }

    #partners .partners-title {
        font-size: 34px;
    }

    #partners .partners-desc {
        font-size: 13.5px;
    }

    #partners .partners-tabs {
        flex-direction: column;
        gap: 12px;
    }

    #partners .partner-tab-btn {
        width: 180px;
    }
}

/* ============================================================
   ACTIVITY IMAGE SLIDER
============================================================ */
.card-img {
    position: relative;
    overflow: hidden;
}

.activity-slider-track {
    width: 100%;
    height: 100%;
    display: flex;
    transition: transform 0.75s cubic-bezier(.4, 0, .2, 1);
    will-change: transform;
}

.activity-slider-track img {
    width: 100%;
    height: 100%;
    flex: 0 0 100%;
    object-fit: cover;
    display: block;
}

.activity-slider::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, rgba(0, 0, 0, .03), rgba(0, 0, 0, .16)),
        radial-gradient(circle at 20% 20%, rgba(34, 255, 132, .08), transparent 40%);
    pointer-events: none;
    z-index: 2;
}