/* --- ការកំណត់ជាមូលដ្ឋាន (Basic Setup) --- */
:root {
    --brand-blue: #0067f4; 
    --brand-blue-dark: #0A2540; 
    --brand-yellow: #FFD700; 
    --dark-text: #333; 
    --light-text: #ffffff;
    --bg-light: #f8f9fa; 
    --border-color: #dee2e6; 
}

html {
    scroll-behavior: smooth; 
}

body {
    font-family: 'Kantumruy Pro', sans-serif; 
    font-weight: 300; 
    margin: 0;
    padding: 0;
    padding-top: 70px; /* Space for fixed nav */
    background-color: var(--light-text); /* Changed to white for cleaner look */
    color: var(--dark-text);
    line-height: 1.7; 
    overflow-x: hidden; 
}

/* Fix for nav-open state */
body.nav-open {
    overflow: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px; 
}

h1, h2, h3, h4 {
    font-family: 'Kantumruy Pro', sans-serif; 
    font-weight: 700; 
    color: var(--brand-blue-dark); 
    margin-top: 0;
    line-height: 1.3;
}

h2 {
    font-size: 2.8rem;
    text-align: center;
    margin-bottom: 40px;
}

/* --- 0. แถบนำทาง (Navigation) --- */
.main-nav {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed; 
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000; 
    padding: 10px 0; 
}
.nav-container {
    display: flex;
    justify-content: space-between; 
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}
.nav-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
}
.nav-logo {
    width: 40px; 
    height: 40px; 
    border-radius: 50%;
    margin-right: 12px;
}
.brand-name {
    font-family: 'Kantumruy Pro', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--brand-blue-dark);
    text-decoration: none;
}

/* Desktop Nav Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 15px; /* Gap between links and social */
}
.nav-links {
    display: flex;
    gap: 5px; 
}
.main-nav a {
    font-family: 'Kantumruy Pro', sans-serif;
    font-weight: 700; 
    color: var(--brand-blue-dark); 
    text-decoration: none;
    padding: 8px 12px; 
    border-radius: 5px;
    transition: background-color 0.3s, color 0.3s;
    font-size: 0.95rem;
    display: inline-block;
}
.main-nav a:hover {
    background-color: var(--brand-yellow);
    color: var(--dark-text);
}
.social-links {
    display: flex;
    align-items: center;
    gap: 8px;
}
.social-links a {
    color: var(--brand-blue-dark); 
    padding: 6px; 
}
.social-links a:hover {
    background-color: var(--bg-light);
    color: var(--brand-blue); 
}
.social-links svg {
    display: block; 
}

/* Burger Menu (Mobile) */
.nav-toggle {
    display: none; /* Hidden on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}
.burger-bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--brand-blue-dark);
    border-radius: 3px;
    margin: 5px 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

/* --- 1. ផ្នែកស្វាគមន៍ (NEW WELCOME SECTION) --- */
.new-welcome-section {
    background-color: var(--bg-light); 
    color: var(--dark-text); 
    padding: 60px 0;
    border-bottom: 1px solid var(--border-color);
}
.welcome-container {
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    align-items: center;
    gap: 40px;
}
.welcome-content {
    max-width: 100%; 
    text-align: left; 
}
.welcome-content h1 {
    color: var(--brand-blue-dark); 
    font-size: 2.5rem; /* Made slightly smaller */
    margin: 0 0 15px 0; 
}
.welcome-content p {
    font-size: 1.1rem; 
    color: var(--dark-text); 
    line-height: 1.8;
    margin-bottom: 30px;
    opacity: 0.9;
}
.welcome-animations {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.animation-card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    text-align: center;
}
.animation-label {
    font-weight: 700;
    color: var(--brand-blue-dark);
    margin-top: 10px;
    display: block;
}

/* SVG Animation Styles */
#tech-people svg {
    width: 100px;
    height: 80px;
}
@keyframes pulse-faded {
    0% { opacity: 0.1; }
    50% { opacity: 0.2; }
    100% { opacity: 0.1; }
}
@keyframes pulse-head {
    0% { opacity: 0.8; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
    100% { opacity: 0.8; transform: scale(1); }
}
.person-head {
    animation: pulse-head 2s infinite ease-in-out;
}
.person-side {
    animation: pulse-faded 2s infinite ease-in-out 0.5s;
}

#grow-data svg {
    width: 100px;
    height: 80px;
    fill: var(--brand-blue);
}
@keyframes grow-bar {
    0% { height: 0; y: 80; opacity: 0; }
    100% { opacity: 1; }
}
.bar1 {
    animation: grow-bar 1.5s infinite ease-out;
    animation-delay: 0s;
    height: 60px; /* Final height */
    y: 20; /* Final y */
    opacity: 0;
    fill-opacity: 0.4;
}
.bar2 {
    animation: grow-bar 1.5s infinite ease-out;
    animation-delay: 0.3s;
    height: 40px;
    y: 40;
    opacity: 0;
    fill-opacity: 0.7;
}
.bar3 {
    animation: grow-bar 1.5s infinite ease-out;
    animation-delay: 0.6s;
    height: 70px;
    y: 10;
    opacity: 0;
    fill-opacity: 1;
}


/* --- 2. ផ្នែកសេវាកម្ម (Services) --- */
#services {
    background-color: var(--light-text); 
    padding: 60px 0; 
}
.service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); 
    gap: 30px;
}
.service-card {
    background: var(--light-text);
    border: 1px solid var(--border-color); 
    border-radius: 8px;
    padding: 30px;
    text-align: left;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    cursor: pointer;
    position: relative;
}
.service-icon {
    margin-bottom: 15px; 
}
.service-card svg {
    width: 36px;
    height: 36px;
    stroke-width: 1.5;
    color: var(--brand-blue);
    transition: transform 0.3s ease, color 0.3s ease;
}
.service-card h3 {
    font-size: 1.6rem; 
    color: var(--brand-blue-dark);
    margin-bottom: 10px;
    transition: color 0.3s ease;
}
.service-card p {
    font-size: 0.95rem;
    line-height: 1.6;
}
.service-card:hover {
    transform: translateY(-8px); 
    box-shadow: 0 10px 25px rgba(0, 103, 244, 0.1); 
    border-color: var(--brand-blue);
}
.service-card:hover h3 {
    color: var(--brand-blue);
}
.service-card:hover .service-icon svg {
    color: var(--brand-yellow);
    transform: scale(1.1);
}

/* --- 3. ផ្នែកវីដេអូ (Video Section) --- */
#video-section {
    background-color: var(--bg-light); 
    padding: 60px 0;
}
.video-container {
    display: flex;
    justify-content: center;
}
.fb-video {
    border-radius: 8px;
    overflow: hidden; 
}

/* --- 4. ផ្នែកកញ្ចប់សេវាកម្ម (Packages) --- */
#packages {
    background-color: var(--light-text); 
    padding: 60px 0;
}
.package-grid {
    display: grid;
    grid-template-columns: 1fr 1fr; 
    justify-items: center;
    gap: 30px;
    align-items: stretch; 
}
.package-card {
    background: var(--light-text); 
    border: 1px solid var(--border-color); 
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05); 
    padding: 30px 35px;
    width: 100%;
    display: flex; 
    flex-direction: column;
    box-sizing: border-box; 
    transition: transform 0.3s ease, box-shadow 0.3s ease; 
}
.package-card:hover {
    transform: translateY(-8px); 
    box-shadow: 0 10px 25px rgba(0, 64, 128, 0.1); 
}
.package-card--basic {
    border-top: 5px solid var(--brand-yellow);
}
.package-card-content {
    flex-grow: 1; 
}
.package-card h3 {
    font-size: 2rem;
    color: var(--brand-blue-dark); 
    text-align: center;
    margin-bottom: 15px;
}
.package-price {
    font-family: 'Kantumruy Pro', sans-serif;
    font-weight: 700; 
    font-size: 2.5rem;
    color: var(--dark-text);
    text-align: center;
    margin-bottom: 5px;
}
.package-price span {
    font-family: 'Kantumruy Pro', sans-serif;
    font-size: 1rem;
    color: #777;
    display: block; 
}
.package-features {
    list-style: none; 
    padding: 0;
    margin: 25px 0;
}
.package-features li {
    font-size: 1rem;
    margin-bottom: 12px;
    display: flex;
    align-items: flex-start;
}
.package-card--basic .package-features li::before {
    content: '✓';
    font-weight: bold;
    color: var(--brand-blue); 
    margin-right: 12px;
    font-size: 1.2rem;
    line-height: 1.4;
}
.package-note {
    font-size: 0.9rem;
    color: #777;
    text-align: center;
    margin-top: 20px;
}
.package-card--premium {
    background: var(--brand-blue-dark); 
    color: var(--light-text);
}
.package-card--premium h3 {
    color: var(--light-text);
}
.package-card--premium .package-price {
    color: var(--light-text);
}
.package-card--premium .package-price span {
    color: #bde0ff; 
}
.package-card--premium .package-features li::before {
    content: '✓';
    font-weight: bold;
    color: var(--brand-yellow); 
    margin-right: 12px;
    font-size: 1.2rem;
    line-height: 1.4;
}
.package-card--premium .package-note {
    color: #bde0ff;
}
.package-cta-button {
    background-color: var(--brand-yellow);
    color: var(--dark-text);
    font-family: 'Kantumruy Pro', sans-serif;
    font-size: 1.1rem; 
    text-decoration: none;
    padding: 12px 20px;
    border-radius: 5px;
    display: block; 
    text-align: center;
    margin-top: 25px; 
    font-weight: 700; 
    transition: background-color 0.3s, transform 0.3s;
}
.package-cta-button:hover {
    background-color: #ffe033;
    transform: translateY(-2px);
}
.package-card--premium .package-cta-button {
    background-color: var(--brand-yellow);
    color: var(--dark-text);
}
.package-card--premium .package-cta-button:hover {
    background-color: #fff;
}

/* --- 5. ផលិតផលផេក (PAGE SELLING) - NEW --- */
#page-selling {
    background-color: var(--bg-light); 
    padding: 60px 0;
}
.selling-grid-images {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.selling-image-card {
    background: var(--light-text);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    overflow: hidden;
}
.selling-image-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 25px rgba(0, 103, 244, 0.1);
    border-color: var(--brand-blue);
}
.selling-image-card img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --- 6. អំពីពួកយើង (ABOUT US) - NEW --- */
#about-us {
    background-color: var(--light-text);
    padding: 60px 0;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    text-align: left; 
}
.stat-item {
    background: var(--light-text); 
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color); 
    box-shadow: 0 4px 12px rgba(0,0,0,0.03);
    text-align: center; /* Centered as requested */
    border-top: 4px solid var(--brand-blue); /* Professional highlight */
}
.stat-number {
    font-family: 'Kantumruy Pro', sans-serif;
    font-weight: 700;
    font-size: 2.5rem;
    color: var(--brand-blue); 
    display: block;
}
.stat-label {
    font-size: 0.9rem;
    color: var(--dark-text); 
    font-weight: 700;
}

/* --- 7. ផ្នែកទំនាក់ទំនង (CALL TO ACTION) --- */
#contact {
    background-color: var(--bg-light); /* Changed */
    padding: 60px 0;
    text-align: center;
}
.cta-button {
    background-color: var(--brand-yellow);
    color: var(--dark-text);
    font-family: 'Kantumruy Pro', sans-serif;
    font-size: 1.4rem; 
    font-weight: 700; 
    text-decoration: none;
    padding: 15px 40px; 
    border-radius: 5px;
    transition: background-color 0.3s, transform 0.3s;
    display: inline-block;
}
.cta-button:hover {
    background-color: #ffe033;
    transform: translateY(-3px); 
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

/* --- 8. ផ្នែកខាងក្រោម (Footer) --- */
.site-footer {
    background-color: var(--brand-blue-dark); 
    color: #bde0ff; 
    padding: 50px 0 0 0;
    font-weight: 300;
}
.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-bottom: 15px;
}
.footer-about h3 {
    font-size: 1.5rem;
    color: var(--light-text);
    margin: 0;
}
.footer-about p {
    font-size: 1rem;
    line-height: 1.6;
    margin: 5px 0 15px 0;
    max-width: 350px;
}
.footer-socials {
    display: flex;
    gap: 12px;
}
.footer-socials a {
    color: var(--light-text);
    transition: color 0.3s;
}
.footer-socials a:hover {
    color: var(--brand-yellow);
}
.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    color: var(--light-text);
    margin-bottom: 15px;
    font-weight: 700;
}
.footer-links ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-links li {
    margin-bottom: 10px;
}
.footer-links a {
    color: #bde0ff;
    text-decoration: none;
    transition: color 0.3s;
}
.footer-links a:hover {
    color: var(--brand-yellow);
}
.footer-contact p {
    margin-bottom: 15px;
}
.footer-cta {
    background-color: var(--brand-yellow);
    color: var(--dark-text);
    font-family: 'Kantumruy Pro', sans-serif;
    font-weight: 700;
    text-decoration: none;
    padding: 10px 18px;
    border-radius: 5px;
    font-size: 1rem;
    transition: background-color 0.3s;
    display: inline-block;
}
.footer-cta:hover {
    background-color: #ffe033;
}
.footer-bottom {
    text-align: center;
    padding: 20px 0;
    border-top: 1px solid #002c5c; 
    font-size: 0.9rem;
}
.footer-bottom p {
    margin: 0;
}


/* --- 9. ចលនា (Animations) --- */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}
/* Staggered delays */
.stats-grid .animate-on-scroll:nth-child(1) { transition-delay: 0.1s; } /* Faster */
.stats-grid .animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.stats-grid .animate-on-scroll:nth-child(3) { transition-delay: 0.3s; }

.service-grid .animate-on-scroll:nth-child(1) { transition-delay: 0.1s; }
.service-grid .animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.service-grid .animate-on-scroll:nth-child(3) { transition-delay: 0.3s; }

.package-grid .animate-on-scroll:nth-child(1) { transition-delay: 0.1s; }
.package-grid .animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }

.selling-grid-images .animate-on-scroll:nth-child(1) { transition-delay: 0.1s; }
.selling-grid-images .animate-on-scroll:nth-child(2) { transition-delay: 0.2s; }
.selling-grid-images .animate-on-scroll:nth-child(3) { transition-delay: 0.3s; }
.selling-grid-images .animate-on-scroll:nth-child(4) { transition-delay: 0.1s; }
.selling-grid-images .animate-on-scroll:nth-child(5) { transition-delay: 0.2s; }


/* --- 10. ការរចនាសម្រាប់អេក្រង់ផ្សេងៗ (Responsive) --- */
@media (max-width: 950px) {
    .service-grid {
        grid-template-columns: 1fr 1fr;
    }
    .selling-grid-images {
        grid-template-columns: 1fr 1fr;
    }
}


@media (max-width: 768px) {
    body {
        padding-top: 70px; 
    }
    
    h2 {
        font-size: 2.2rem;
    }

    /* Professional Burger Menu */
    .nav-toggle {
        display: block;
    }
    .nav-menu {
        position: fixed;
        top: 70px; /* Height of the nav bar */
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: #ffffff;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 30px;
        gap: 20px;
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
    }
    .nav-links {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    .social-links {
        padding-top: 20px;
        border-top: 1px solid var(--border-color);
    }
    /* Nav Open State */
    body.nav-open .nav-menu {
        transform: translateX(0);
    }
    body.nav-open .nav-toggle .burger-bar:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }
    body.nav-open .nav-toggle .burger-bar:nth-child(2) {
        opacity: 0;
    }
    body.nav-open .nav-toggle .burger-bar:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    /* Responsive Welcome */
    .welcome-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .welcome-content {
        text-align: center;
    }
    .welcome-content h1 {
        font-size: 2.2rem;
    }
    .welcome-animations {
        grid-template-columns: 1fr; /* Stack animations */
    }

    /* Responsive About Us */
    .stats-grid {
        grid-template-columns: 1fr; /* Stack stats */
        text-align: center;
    }

    /* Responsive Footer */
    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-about, .footer-links, .footer-contact {
        align-items: center;
    }
    .footer-about p {
        max-width: 100%;
    }
    .footer-socials {
        justify-content: center;
    }
    
    /* Responsive Service Cards */
    .service-grid {
        grid-template-columns: 1fr;
    }
    
    /* Responsive Packages */
    .package-grid {
        grid-template-columns: 1fr;
    }

    /* Responsive Selling Grid */
    .selling-grid-images {
        grid-template-columns: 1fr;
    }
}


@media (max-width: 500px) {
    h2 { 
        font-size: 2rem; 
    }
}