/* =========================================================================
   VNS Cyber Cafe - Premium Modern Typography & Colors 
   ========================================================================= */

/* ----- Variables & Tokens ----- */
:root {
    /* Color Palette */
    --clr-primary: #0F172A; /* Deep Blue - Trust & Professionalism */
    --clr-secondary: #2563EB; /* Electric Blue - Tech & Modern */
    --clr-accent: #F1F5F9; /* Soft Gray - Clean Background */
    --clr-cta: #F97316; /* Orange - High Visibility/Conversion */
    
    --clr-text-main: #334155;
    --clr-text-muted: #64748b;
    --clr-white: #FFFFFF;
    
    /* Typography */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Roboto', sans-serif;
    
    /* Spacing & Utilities */
    --border-radius: 12px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --transition: all 0.3s ease;
}

/* ----- Reset & Base Styles ----- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    color: var(--clr-text-main);
    background-color: var(--clr-white);
    line-height: Administrator 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--clr-primary);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-padding {
    padding: 5rem 0;
}

.bg-light {
    background-color: var(--clr-accent);
}

.text-primary {
    color: var(--clr-secondary);
}

.text-white {
    color: var(--clr-white) !important;
}

/* ----- Typography Utilities ----- */
.section-title {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-title h2 {
    font-size: 2.25rem;
    margin-bottom: 0.5rem;
}

.section-title p {
    color: var(--clr-text-muted);
    font-size: 1.125rem;
}

.text-left {
    text-align: left;
}

/* ----- Buttons ----- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background-color: var(--clr-cta);
    color: var(--clr-white);
    box-shadow: 0 4px 14px rgba(249, 115, 22, 0.4);
}

.btn-primary:hover {
    background-color: #ea580c; /* Darker orange */
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.5);
    color: var(--clr-white);
}

.btn-outline {
    background-color: transparent;
    color: var(--clr-primary);
    border: 2px solid var(--clr-primary);
}

.btn-outline:hover {
    background-color: var(--clr-primary);
    color: var(--clr-white);
}

.border-white {
    border-color: var(--clr-white);
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1.125rem;
}

/* ----- Header & Navigation ----- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--clr-accent);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--clr-primary);
}

.logo i {
    color: var(--clr-secondary);
    font-size: 1.75rem;
}

.nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    color: var(--clr-text-main);
    font-family: var(--font-heading);
}

.nav-link:hover, .nav-link.active {
    color: var(--clr-secondary);
}

.nav-toggle {
    display: none;
    font-size: 1.5rem;
    background: none;
    border: none;
    color: var(--clr-primary);
    cursor: pointer;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-call-btn {
    display: none;
    margin-top: 1rem;
}

/* ----- Hero Section ----- */
.hero {
    padding-top: 120px; /* Account for sticky header */
    padding-bottom: 5rem;
    background: linear-gradient(135deg, var(--clr-accent) 0%, #ffffff 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--clr-secondary);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    font-family: var(--font-heading);
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--clr-text-muted);
    margin-bottom: 2rem;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.trust-indicators {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--clr-text-main);
}

.trust-item i {
    color: #10B981; /* Green success check */
    font-size: 1.125rem;
}

.hero-image .image-wrapper {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

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

/* ----- About Section ----- */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    color: var(--clr-text-muted);
}

/* ----- Services Section ----- */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--clr-white);
    padding: 2.5rem 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--clr-accent);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--clr-secondary);
    transform: scaleY(0);
    transition: transform 0.3s ease;
    transform-origin: bottom;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.service-card:hover::before {
    transform: scaleY(1);
    transform-origin: top;
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(37, 99, 235, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 2rem;
    color: var(--clr-secondary);
}

.service-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.service-desc {
    color: var(--clr-text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.service-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--clr-secondary);
    font-weight: 600;
    font-family: var(--font-heading);
    font-size: 0.9rem;
}

.service-link:hover {
    gap: 0.75rem; /* subtle arrow animation */
}

/* ----- Features & Use Cases Section ----- */
.features-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
}

.features-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.features-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 1rem;
    color: var(--clr-text-muted);
}

.features-list i {
    font-size: 1.25rem;
    margin-top: 0.1rem;
}

.features-list strong {
    color: var(--clr-text-main);
    font-family: var(--font-heading);
}

.use-case-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.use-case-card {
    background-color: var(--clr-white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--clr-accent);
    transition: var(--transition);
}

.use-case-card:hover {
    border-color: var(--clr-secondary);
    box-shadow: var(--shadow-md);
}

.use-case-card i {
    font-size: 2.5rem;
    color: var(--clr-secondary);
    margin-bottom: 0.5rem;
}

.use-case-card span {
    display: block;
    font-weight: 600;
    font-family: var(--font-heading);
    font-size: 0.9rem;
}

/* ----- Contact Section ----- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--clr-cta);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    flex-shrink: 0;
    font-size: 1.5rem;
}

.info-card h4 {
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.info-card p, .info-card a {
    color: var(--clr-text-muted);
}

.info-card a:hover {
    color: var(--clr-secondary);
}

.contact-map {
    height: 400px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

/* ----- Strong CTA Section ----- */
.bottom-cta {
    background-color: var(--clr-primary);
    color: var(--clr-white);
    text-align: center;
}

.bottom-cta h2 {
    color: var(--clr-white);
}

.bottom-cta p {
    color: var(--clr-accent);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ----- Footer ----- */
.footer {
    background-color: #0B1120; /* Slightly darker than primary */
    color: var(--clr-accent);
    padding-top: 4rem;
}

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

.footer-brand p {
    margin-top: 1rem;
    color: #94A3B8;
    max-width: 300px;
}

.footer h4 {
    color: var(--clr-white);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: #94A3B8;
}

.footer-links a:hover {
    color: var(--clr-cta);
}

.footer-contact p {
    color: #94A3B8;
    margin-bottom: 0.5rem;
    display: flex;
    gap: 0.5rem;
}

.footer-bottom {
    text-align: center;
    padding: 1.5rem 0;
    border-top: 1px solid #1E293B;
    color: #94A3B8;
    font-size: 0.875rem;
}

/* ----- Floating Call Button ----- */
.floating-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: var(--clr-cta);
    color: var(--clr-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: 0 4px 10px rgba(249, 115, 22, 0.4);
    z-index: 99;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.7); }
    70% { transform: scale(1.05); box-shadow: 0 0 0 15px rgba(249, 115, 22, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(249, 115, 22, 0); }
}


/* ----- Responsive Design ----- */
.d-none { display: none; }

@media (min-width: 768px) {
    .d-md-none { display: none !important; }
    .d-md-flex { display: flex !important; }
    
    .hero-container {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .features-container {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
    
    .contact-grid {
        grid-template-columns: 1fr 1.5fr;
    }
    
    .footer-content {
        grid-template-columns: 2fr 1fr 1fr;
    }
}

@media (max-width: 767px) {
    .nav {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--clr-white);
        flex-direction: column;
        padding: 2rem;
        transition: var(--transition);
        align-items: flex-start;
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        width: 100%;
        gap: 1.5rem;
    }
    
    .nav-link {
        display: block;
        font-size: 1.25rem;
        width: 100%;
    }
    
    .nav-toggle {
        display: block;
    }

    .nav-call-btn {
        display: inline-flex;
        width: 100%;
    }
}

/* ----- Animations ----- */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.appear {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }