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

:root {
    --brand-blue-deep: #0E2A5B;
    --brand-blue: #1a4c96;
    --brand-green: #36622E;
    --bg-soft-1: #fbfdfc;
    --bg-soft-2: #f3f9f5;
    --bg-soft-3: #ebf5ef;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}


/* Hero Section với animation gradient */

.hero {
    background: linear-gradient(135deg, #12366f 0%, #2a5ea4 48%, #3f7446 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    color: white;
    padding: 120px 0px 80px;
    text-align: center;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}


/* Particles effect background */

.hero::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(2px 2px at 20% 30%, rgba(255, 255, 255, 0.3), transparent), radial-gradient(2px 2px at 60% 70%, rgba(255, 255, 255, 0.3), transparent), radial-gradient(1px 1px at 50% 50%, rgba(255, 255, 255, 0.2), transparent), radial-gradient(1px 1px at 80% 10%, rgba(255, 255, 255, 0.2), transparent);
    background-size: 200% 200%;
    animation: particles 20s linear infinite;
    opacity: 0.35;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes particles {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(50px, 50px);
    }
}


/* Styling cho tiêu đề với text shadow */

.hero .col-lg-6 h2 {
    margin-bottom: 1.5rem;
    font-size: 2.8rem;
    font-weight: 800;
    text-align: center;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.5px;
}

.hero .row>div {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.hero .col-lg-6 {
    display: flex !important;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.hero .col-lg-6 p {
    text-align: justify;
    text-justify: inter-word;
    hyphens: auto;
    line-height: 1.9;
    margin-bottom: 1rem;
    font-size: 1.15rem;
    max-width: 100%;
    text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.2);
}


/* Enhanced Button styling */

.btn-hero {
    padding: 1.1rem 2.8rem;
    font-size: 1.2rem;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(36, 88, 22, 0.3);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: inline-block;
    background: linear-gradient(135deg, #36622E, #4A7C23, #5faa3a);
    background-size: 200% 200%;
    border: none;
    color: white;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.btn-hero:hover::before {
    left: 100%;
}

.btn-hero:hover {
    transform: translateY(-6px) scale(1.05);
    box-shadow: 0 20px 45px rgba(36, 88, 22, 0.4);
    color: white;
    background-position: 100% 50%;
}

.btn-hero:active {
    transform: translateY(-2px) scale(1.02);
}


/* Image container with glow effect */

.hero .col-lg-6 img {
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: all 0.5s ease;
}

.hero .col-lg-6 img:hover {
    transform: scale(1.05) rotate(2deg);
    box-shadow: 0 25px 80px rgba(54, 98, 46, 0.4);
}


/* Container */

.container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 1rem;
}


/* Section */

.section {
    padding: 100px 0;
}

.section-title {
    width: 100%;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 5px;
    background: linear-gradient(90deg, #36622E, #4A7C23);
    border-radius: 3px;
}


/* Ecosystem Section */

.ecosystem {
    background: linear-gradient(145deg, #fcfefd 0%, var(--bg-soft-1) 44%, var(--bg-soft-2) 100%);
    position: relative;
    padding: 80px 0;
}

.ecosystem::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, white, transparent);
}

.ecosystem-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    align-items: center;
}

.ecosystem-text {
    padding: 2rem;
}

.ecosystem-text h2 {
    font-size: 3rem;
    color: #0E2A5B;
    margin-bottom: 2rem;
    font-weight: 800;
}

.ecosystem-text p {
    font-size: 1.15rem;
    line-height: 2;
    color: #444;
    margin-bottom: 1.5rem;
    text-align: justify;
}

.ecosystem-graphic {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}


/* Enhanced hex hover effects */

#hex-cycle-svg {
    max-width: 100%;
    height: auto;
}

#hex-cycle-svg .hex-group {
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    transform-origin: center;
}

#hex-cycle-svg .hex-group:hover {
    transform: scale(1.15);
    filter: drop-shadow(0 8px 16px rgba(54, 98, 46, 0.4));
}

#hex-cycle-svg .hex-polygon {
    fill: rgba(255, 255, 255, 0.08);
    stroke: #36622E;
    stroke-width: 4;
    transition: all 0.3s ease;
}

#hex-cycle-svg .hex-group:hover .hex-polygon {
    fill: rgba(232, 249, 234, 0.45);
    stroke: #2d5016;
    stroke-width: 5;
}

#hex-cycle-svg .hex-label {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    pointer-events: none;
    transition: all 0.3s ease;
    paint-order: stroke;
    stroke: rgba(255, 255, 255, 0.9);
    stroke-width: 3px;
}

#hex-cycle-svg .hex-group:hover .hex-label {
    fill: #0E2A5B;
    font-weight: 700;
}

#hex-cycle-svg .flow {
    stroke: #36622E;
    stroke-width: 4;
    stroke-linecap: round;
    fill: none;
    opacity: 0.98;
    stroke-dasharray: 600;
    stroke-dashoffset: 600;
    animation: draw 1.2s ease-out forwards;
}

@keyframes draw {
    to {
        stroke-dashoffset: 0;
    }
}


/* Tooltip styling */

#tooltip-fo {
    pointer-events: none;
}

#tooltip-fo div {
    font-size: 14px;
    font-weight: 600;
    color: #0E2A5B;
    text-align: center;
    font-family: system-ui, sans-serif;
    word-wrap: break-word;
    line-height: 1.4;
    background: rgba(255, 255, 255, 0.95);
    padding: 8px 12px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}


/* Impact Section */

.impact {
    background: linear-gradient(180deg, #ffffff 0%, #f9fcfa 100%);
}

.stat-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 32px rgba(17, 44, 82, 0.08);
    border-left: 5px solid #36622E;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(135deg, #e8f9ea, transparent);
    transition: width 0.4s ease;
    z-index: 0;
}

.stat-card:hover::before {
    width: 100%;
}

.stat-card:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 25px 70px rgba(54, 98, 46, 0.2);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: #0E2A5B;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.stat-label {
    color: #666;
    font-weight: 600;
    font-size: 1.1rem;
    position: relative;
    z-index: 1;
}


/* Products Section */

.products {
    background: linear-gradient(180deg, var(--bg-soft-3) 0%, var(--bg-soft-2) 60%, #ffffff 100%);
}

.product-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.08);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(54, 98, 46, 0.05));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 1;
}

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

.product-card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: 0 30px 80px rgba(54, 98, 46, 0.2);
}

.product-card img {
    width: 100%;
    height: 350px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.product-card:hover img {
    transform: scale(1.1);
}

.product-card .card-body {
    padding: 2rem;
    position: relative;
    z-index: 2;
}

.product-card h5 {
    color: #0E2A5B;
    font-weight: 700;
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: #36622E;
    margin: 0.5rem 0;
}

.btn-add-cart {
    background: linear-gradient(135deg, #36622E, #4A7C23);
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.4s ease;
    box-shadow: 0 8px 20px rgba(54, 98, 46, 0.3);
}

.btn-add-cart:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(54, 98, 46, 0.4);
    background: linear-gradient(135deg, #4A7C23, #5faa3a);
}


/* Team Section */

#team {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #143a73 0%, #2f66ab 58%, #3f7446 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

#team::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(2px 2px at 20% 30%, rgba(255, 255, 255, 0.2), transparent), radial-gradient(2px 2px at 60% 70%, rgba(255, 255, 255, 0.2), transparent);
    background-size: 200% 200%;
    animation: particles 20s linear infinite;
}

.team-card {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    background: #000;
}

.team-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent, rgba(54, 98, 46, 0.3));
    opacity: 0;
    transition: opacity 0.4s ease;
}

.team-card:hover::after {
    opacity: 1;
}

.team-card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: 0 25px 60px rgba(54, 98, 46, 0.5);
}

.team-photo-portrait {
    width: 100%;
    height: 280px;
    object-fit: cover;
    object-position: top;
    transition: all 0.6s ease;
}

.team-card:hover .team-photo-portrait {
    transform: scale(1.12);
    filter: brightness(1.15);
}

.team-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.2rem;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.9) 100%);
    color: white;
    text-align: center;
    transition: all 0.4s ease;
}

.team-card:hover .team-overlay {
    padding-bottom: 1.5rem;
}

.team-overlay h4 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.team-overlay p {
    margin: 0.3rem 0 0 0;
    font-size: 0.95rem;
    opacity: 0.9;
}

.mentor-card {
    transform: scale(1.05);
    box-shadow: 0 20px 60px rgba(54, 98, 46, 0.5);
}

.mentor-card .team-photo-portrait {
    height: 500px;
}

.team-group-card .team-photo-portrait {
    height: 520px;
    object-position: center;
}

.team-group-card .team-overlay {
    background: linear-gradient(180deg, transparent 0%, rgba(7, 20, 38, 0.92) 100%);
}


/* Group Activities Section */

.activities {
    background: linear-gradient(180deg, #f7fbf8 0%, #ffffff 100%);
}

.activities-intro {
    max-width: 900px;
    margin: 0 auto 40px;
    font-size: 1.15rem;
    color: #444;
}

.activity-card {
    background: #ffffff;
    border-radius: 22px;
    padding: 26px;
    box-shadow: 0 18px 50px rgba(17, 44, 82, 0.12);
    border: 1px solid rgba(54, 98, 46, 0.08);
}

.activity-header h3 {
    font-weight: 800;
    color: #0E2A5B;
    margin-bottom: 0.8rem;
}

.activity-header p {
    color: #444;
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: 1.4rem;
}

.activity-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

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

.activity-figure {
    margin: 0;
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.18);
}

.activity-figure img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}

.activity-figure:hover img {
    transform: scale(1.08);
}

.activity-caption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0.6rem 0.8rem;
    font-size: 0.95rem;
    color: #fff;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.75) 100%);
}


/* Footer */

.footer {
    background: linear-gradient(135deg, #143766 0%, #245388 100%);
    color: white;
    padding: 4rem 0 2rem;
}

.footer h5 {
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.footer a {
    transition: all 0.3s ease;
}

.footer a:hover {
    transform: scale(1.2);
    filter: brightness(1.3);
}


/* Responsive */

@media (max-width: 992px) {
    .ecosystem-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .ecosystem-text,
    .ecosystem-graphic {
        padding: 1rem;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 80px 0 60px;
    }
    .hero .col-lg-6 h2 {
        font-size: 2.2rem;
    }
    .btn-hero {
        padding: 0.9rem 2rem;
        font-size: 1.1rem;
    }
    .section-title {
        font-size: 2.5rem;
    }
    .ecosystem-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .team-photo-portrait {
        height: 350px;
    }
    .team-group-card .team-photo-portrait {
        height: 360px;
    }
    .activity-grid {
        grid-template-columns: 1fr;
    }
    .activity-figure img {
        height: 240px;
    }
    .section {
        padding: 60px 0;
    }
    #hex-cycle-svg {
        width: 100%;
        height: auto;
    }
}


/* Smooth scroll behavior */

html {
    scroll-behavior: smooth;
}


/* Selection color */

::selection {
    background: #36622E;
    color: white;
}

::-moz-selection {
    background: #36622E;
    color: white;
}

section {
    scroll-margin-top: 120px;
}