/* ============================================
   PRIME MIND SOLUTIONS - CORPORATE DESIGN SYSTEM
   Professional, trustworthy, Microsoft-inspired
   ============================================ */

/* CSS Variables - Corporate Color Palette */
:root {
    /* Primary Colors - Professional Blues */
    --primary-blue: #0078D4;           /* Microsoft Blue - trustworthy */
    --primary-blue-dark: #005A9E;      /* Hover states */
    --primary-blue-light: #50E6FF;     /* Accent highlights */
    --secondary-navy: #1B3A57;         /* Deep navy for headers */
    
    /* Neutral Grays - Clean and Professional */
    --neutral-gray-50: #F8F9FA;        /* Light backgrounds */
    --neutral-gray-100: #E9ECEF;       /* Borders, dividers */
    --neutral-gray-200: #DEE2E6;       /* Subtle elements */
    --neutral-gray-600: #495057;       /* Secondary text */
    --neutral-gray-800: #212529;       /* Primary text */
    --neutral-gray-900: #0A0E14;       /* Headings */
    --white: #FFFFFF;
    
    /* Accent Colors */
    --success-green: #107C10;          /* Microsoft green */
    --accent-teal: #008575;            /* Professional teal */
    
    /* Shadows - Subtle Depth */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.12);
    
    /* Spacing System */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    --spacing-3xl: 96px;
    
    /* Typography */
    --font-size-xs: 0.8125rem;    /* 13px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 0.9375rem;  /* 15px */
    --font-size-md: 1.0625rem;    /* 17px */
    --font-size-lg: 1.25rem;      /* 20px */
    --font-size-xl: 1.5rem;       /* 24px */
    --font-size-2xl: 2rem;        /* 32px */
    --font-size-3xl: 2.5rem;      /* 40px */
    --font-size-4xl: 3.5rem;      /* 56px */
}

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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--white);
    color: var(--neutral-gray-800);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: var(--font-size-base);
    max-width: 100vw;
}


/* Prevent scrolling when mobile menu is open */
body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100vh;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   HEADER - Professional Navigation
   ============================================ */
.header {
    background: linear-gradient(135deg, #1a2f45 0%, #0d1b2a 100%);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
    position: sticky;
    top: 0;
    z-index: 1001;
    border-bottom: 1px solid rgba(0, 120, 212, 0.3);
    backdrop-filter: blur(10px);
    width: 100%;
}

/* Subtle animated gradient overlay */
.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(0, 120, 212, 0.05) 50%, 
        transparent 100%);
    animation: header-shimmer 8s ease-in-out infinite;
    pointer-events: none;
}

@keyframes header-shimmer {
    0%, 100% {
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
}

/* Ensure header stays sticky even when body is fixed */
body.menu-open .header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 72px;
    position: relative;
    z-index: 1;
}

.logo img {
    padding: 0;
    margin: 0;
    display: block;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background: var(--white);
    border-radius: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

/* Animated Hamburger - Active State */
.mobile-menu-toggle.active .hamburger-line:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: translateX(-20px);
}

.mobile-menu-toggle.active .hamburger-line:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
}

.nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav ul li {
    margin: 0;
}

.nav ul li a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 10px 0;
    letter-spacing: 0.01em;
    display: inline-block;
}

.nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-blue-light), var(--primary-blue));
    border-radius: 2px 2px 0 0;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.nav ul li a:hover::after {
    width: 100%;
}

.nav ul li a.active {
    color: var(--white);
    font-weight: 600;
}

.nav ul li a.active::after {
    width: 100%;
}

/* Contact Button in Nav */
.nav-btn {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    padding: 10px 24px !important;
    border-radius: 6px;
    color: var(--white) !important;
    font-weight: 600 !important;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 120, 212, 0.3);
}

.nav-btn::after {
    display: none !important;
}

.nav-btn:hover {
    background: linear-gradient(135deg, var(--primary-blue-dark) 0%, #004578 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.4);
    color: var(--white) !important;
}

/* ============================================
   HERO SECTION - Impactful Introduction
   ============================================ */
.hero {
    min-height: 100vh;
    height: 100vh;
    display: flex;
    align-items: center;
    padding: 0;
    background: linear-gradient(180deg, #FFFFFF 0%, var(--neutral-gray-50) 100%);
    position: relative;
    overflow: hidden;
}

/* ============================================
   FUTURISTIC ANIMATED BACKGROUND
   ============================================ */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

/* Animated Waves */
.wave {
    position: absolute;
    width: 200%;
    height: 200%;
    opacity: 0.15;
    border-radius: 45%;
}

.wave1 {
    background: linear-gradient(135deg, rgba(0, 120, 212, 0.3) 0%, rgba(80, 230, 255, 0.2) 100%);
    top: -50%;
    left: -50%;
    animation: wave-animation 20s ease-in-out infinite;
}

.wave2 {
    background: linear-gradient(225deg, rgba(0, 90, 158, 0.25) 0%, rgba(0, 120, 212, 0.15) 100%);
    top: -30%;
    right: -50%;
    animation: wave-animation 25s ease-in-out infinite reverse;
    animation-delay: -5s;
}

.wave3 {
    background: linear-gradient(315deg, rgba(80, 230, 255, 0.2) 0%, rgba(0, 120, 212, 0.1) 100%);
    bottom: -50%;
    left: -30%;
    animation: wave-animation 30s ease-in-out infinite;
    animation-delay: -10s;
}

@keyframes wave-animation {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg) scale(1);
    }
    25% {
        transform: translate(5%, 5%) rotate(5deg) scale(1.05);
    }
    50% {
        transform: translate(10%, -5%) rotate(10deg) scale(1.1);
    }
    75% {
        transform: translate(5%, 5%) rotate(5deg) scale(1.05);
    }
}

/* Data Streams - Flowing vertical lines */
.data-streams {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    overflow: hidden;
}

.stream {
    position: absolute;
    width: 2px;
    height: 100px;
    background: linear-gradient(to bottom, 
        transparent 0%, 
        rgba(0, 120, 212, 0.6) 50%, 
        transparent 100%);
    animation: stream-flow 8s linear infinite;
    opacity: 0.7;
}

.stream1 {
    left: 15%;
    animation-delay: 0s;
    animation-duration: 7s;
}

.stream2 {
    left: 35%;
    animation-delay: -2s;
    animation-duration: 9s;
}

.stream3 {
    left: 55%;
    animation-delay: -4s;
    animation-duration: 8s;
}

.stream4 {
    left: 75%;
    animation-delay: -1s;
    animation-duration: 10s;
}

.stream5 {
    left: 90%;
    animation-delay: -3s;
    animation-duration: 7.5s;
}

@keyframes stream-flow {
    0% {
        transform: translateY(-100px);
        opacity: 0;
    }
    10% {
        opacity: 0.7;
    }
    90% {
        opacity: 0.7;
    }
    100% {
        transform: translateY(calc(100vh + 100px));
        opacity: 0;
    }
}

/* Neural Network - AI Visualization */
.neural-network {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0.4;
}

.network-svg {
    width: 100%;
    height: 100%;
}

/* Neural nodes */
.node {
    fill: rgba(0, 120, 212, 0.8);
    filter: drop-shadow(0 0 4px rgba(0, 120, 212, 0.6));
    animation: pulse-node 3s ease-in-out infinite;
}

.node1 { animation-delay: 0s; }
.node2 { animation-delay: 0.2s; }
.node3 { animation-delay: 0.4s; }
.node4 { animation-delay: 0.6s; }
.node5 { animation-delay: 0.8s; }
.node6 { animation-delay: 1s; }
.node7 { animation-delay: 1.2s; }
.node8 { animation-delay: 1.4s; }
.node9 { animation-delay: 1.6s; }
.node10 { animation-delay: 1.8s; }
.node11 { animation-delay: 2s; }
.node12 { animation-delay: 2.2s; }

@keyframes pulse-node {
    0%, 100% {
        r: 4;
        opacity: 0.6;
    }
    50% {
        r: 6;
        opacity: 1;
    }
}

/* Connection lines */
.connection {
    stroke: rgba(0, 120, 212, 0.3);
    stroke-width: 1;
    stroke-linecap: round;
    animation: pulse-connection 4s ease-in-out infinite;
}

.conn1 { animation-delay: 0s; }
.conn2 { animation-delay: 0.3s; }
.conn3 { animation-delay: 0.6s; }
.conn4 { animation-delay: 0.9s; }
.conn5 { animation-delay: 1.2s; }
.conn6 { animation-delay: 1.5s; }
.conn7 { animation-delay: 1.8s; }
.conn8 { animation-delay: 2.1s; }
.conn9 { animation-delay: 2.4s; }
.conn10 { animation-delay: 2.7s; }
.conn11 { animation-delay: 3s; }
.conn12 { animation-delay: 3.3s; }
.conn13 { animation-delay: 3.6s; }
.conn14 { animation-delay: 3.9s; }

@keyframes pulse-connection {
    0%, 100% {
        stroke-opacity: 0.2;
        stroke-width: 1;
    }
    50% {
        stroke-opacity: 0.6;
        stroke-width: 1.5;
    }
}

/* Futuristic Grid Overlay */
.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 120, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 120, 212, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
    animation: grid-pulse 8s ease-in-out infinite;
}

@keyframes grid-pulse {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.6;
    }
}

/* Performance optimization - use GPU acceleration */
.wave,
.stream,
.grid-overlay,
.neural-network {
    will-change: transform, opacity;
    transform: translateZ(0);
    backface-visibility: hidden;
}

.hero .container {
    text-align: center;
    max-width: 960px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-md);
    position: relative;
    z-index: 1;
}

/* Hero Badge */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: linear-gradient(135deg, rgba(0, 120, 212, 0.1) 0%, rgba(80, 230, 255, 0.1) 100%);
    border: 1.5px solid rgba(0, 120, 212, 0.3);
    border-radius: 50px;
    margin-bottom: var(--spacing-lg);
    animation: badge-float 3s ease-in-out infinite;
    backdrop-filter: blur(10px);
}

.badge-icon {
    font-size: 1.125rem;
    animation: pulse-icon 2s ease-in-out infinite;
}

.badge-text {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-blue);
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

@keyframes badge-float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

@keyframes pulse-icon {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.1);
    }
}

.company-name {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    letter-spacing: -0.015em;
    margin-bottom: var(--spacing-xl);
    color: var(--neutral-gray-900);
    text-transform: uppercase;
    line-height: 1.2;
    position: relative;
    padding-bottom: var(--spacing-md);
}

/* Remove gradient text, use solid color for better readability */
.company-name::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    border-radius: 2px;
}

.description {
    margin-bottom: var(--spacing-2xl);
    font-size: 1.125rem;
    color: var(--neutral-gray-600);
    line-height: 1.8;
    font-weight: 400;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 var(--spacing-md);
}

.description p {
    margin-bottom: 0;
    font-size: 1.125rem;
}

/* ============================================
   BUTTONS - Clear Call-to-Actions
   ============================================ */
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
    flex-wrap: wrap;
}

.btn {
    padding: 16px 40px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    outline: none;
    letter-spacing: 0.02em;
    position: relative;
    overflow: hidden;
    min-width: 160px;
    text-transform: none;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

/* Shimmer effect on hover */
.btn::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 ease;
}

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

.btn.primary {
    background: var(--primary-blue);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(0, 120, 212, 0.3);
    border: 2px solid transparent;
}

.btn.primary:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 120, 212, 0.4);
}

.btn.primary:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.3);
}

.btn.secondary {
    background-color: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    box-shadow: 0 2px 8px rgba(0, 120, 212, 0.15);
}

.btn.secondary:hover {
    background-color: var(--primary-blue);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 120, 212, 0.25);
    border-color: var(--primary-blue);
}

.btn.secondary:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 120, 212, 0.2);
}

/* ============================================
   ABOUT SECTION - Company Information
   ============================================ */
.about-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(180deg, var(--white) 0%, var(--neutral-gray-50) 50%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.about-section h2 {
    text-align: center;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-gray-900);
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.about-section h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    border-radius: 2px;
}

.about-content {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
    margin-top: var(--spacing-2xl);
}

.about-text {
    flex: 1;
    padding: var(--spacing-lg);
}

.about-text p {
    font-size: 1.0625rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.9;
    color: var(--neutral-gray-600);
    font-weight: 400;
    position: relative;
    padding-left: var(--spacing-md);
}

.about-text p::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 4px;
    height: calc(100% - 16px);
    background: linear-gradient(180deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    border-radius: 2px;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* AI Visualization Container */
.ai-visualization {
    width: 100%;
    height: 420px;
    background: linear-gradient(135deg, rgba(0, 120, 212, 0.03) 0%, rgba(80, 230, 255, 0.03) 100%);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 2px solid rgba(0, 120, 212, 0.15);
    box-shadow: 0 8px 24px rgba(0, 120, 212, 0.12);
    position: relative;
    overflow: hidden;
}

/* Animated circuit pattern background */
.ai-visualization::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(90deg, rgba(0, 120, 212, 0.03) 1px, transparent 1px),
        linear-gradient(rgba(0, 120, 212, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: grid-move 30s linear infinite;
}

@keyframes grid-move {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(40px, 40px);
    }
}

/* Central AI Core */
.ai-core {
    position: absolute;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(0, 120, 212, 0.8) 0%, rgba(0, 120, 212, 0.4) 50%, transparent 100%);
    border-radius: 50%;
    animation: core-pulse 3s ease-in-out infinite;
    box-shadow: 0 0 40px rgba(0, 120, 212, 0.6),
                0 0 80px rgba(0, 120, 212, 0.3),
                inset 0 0 20px rgba(80, 230, 255, 0.5);
}

.ai-core::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(80, 230, 255, 0.9) 0%, transparent 70%);
    border-radius: 50%;
    animation: core-inner-pulse 2s ease-in-out infinite;
}

@keyframes core-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

@keyframes core-inner-pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.3);
    }
}

/* Orbit Rings */
.orbit-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(0, 120, 212, 0.2);
}

.ring-1 {
    width: 160px;
    height: 160px;
    animation: rotate-orbit 15s linear infinite;
}

.ring-2 {
    width: 240px;
    height: 240px;
    animation: rotate-orbit 25s linear infinite reverse;
}

.ring-3 {
    width: 320px;
    height: 320px;
    animation: rotate-orbit 35s linear infinite;
}

@keyframes rotate-orbit {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Orbit Nodes */
.orbit-node {
    position: absolute;
    width: 12px;
    height: 12px;
    background: radial-gradient(circle, rgba(0, 120, 212, 0.9) 0%, rgba(0, 120, 212, 0.5) 100%);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 120, 212, 0.8),
                0 0 20px rgba(0, 120, 212, 0.4);
    animation: node-pulse 2s ease-in-out infinite;
}

/* Position nodes around rings */
.ring-1 .node-1 { top: 0; left: 50%; transform: translateX(-50%); }
.ring-1 .node-2 { top: 50%; left: 0; transform: translateY(-50%); animation-delay: 0.3s; }
.ring-1 .node-3 { bottom: 0; left: 50%; transform: translateX(-50%); animation-delay: 0.6s; }

.ring-2 .node-4 { top: 0; left: 50%; transform: translateX(-50%); animation-delay: 0.2s; }
.ring-2 .node-5 { top: 50%; right: 0; transform: translateY(-50%); animation-delay: 0.4s; }
.ring-2 .node-6 { bottom: 0; left: 50%; transform: translateX(-50%); animation-delay: 0.6s; }
.ring-2 .node-7 { top: 50%; left: 0; transform: translateY(-50%); animation-delay: 0.8s; }

.ring-3 .node-8 { top: 0; left: 50%; transform: translateX(-50%); animation-delay: 0.1s; }
.ring-3 .node-9 { top: 15%; right: 15%; animation-delay: 0.3s; }
.ring-3 .node-10 { top: 50%; right: 0; transform: translateY(-50%); animation-delay: 0.5s; }
.ring-3 .node-11 { bottom: 15%; right: 15%; animation-delay: 0.7s; }
.ring-3 .node-12 { bottom: 0; left: 50%; transform: translateX(-50%); animation-delay: 0.9s; }

@keyframes node-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.8;
    }
    50% {
        transform: scale(1.5);
        opacity: 1;
    }
}

/* Data Pulses - Expanding Rings */
.data-pulse {
    position: absolute;
    width: 80px;
    height: 80px;
    border: 2px solid rgba(0, 120, 212, 0.6);
    border-radius: 50%;
    animation: pulse-expand 4s ease-out infinite;
}

.pulse-1 {
    animation-delay: 0s;
}

.pulse-2 {
    animation-delay: 1.3s;
}

.pulse-3 {
    animation-delay: 2.6s;
}

@keyframes pulse-expand {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* ============================================
   CONTACT SECTION - Simple & Elegant
   ============================================ */
.contact-section {
    padding: var(--spacing-3xl) 0 calc(var(--spacing-3xl) * 1.5);
    background: linear-gradient(180deg, var(--white) 0%, var(--neutral-gray-50) 100%);
}

.contact-section h2 {
    text-align: center;
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-gray-900);
    letter-spacing: -0.02em;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.contact-section h2::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    border-radius: 2px;
}

.contact-wrapper {
    max-width: 800px;
    margin: var(--spacing-2xl) auto 0;
    text-align: center;
    padding: 0 var(--spacing-md);
}

.contact-intro {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--neutral-gray-600);
    margin-bottom: var(--spacing-2xl);
    font-weight: 400;
}

.contact-email-box {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--white);
    border-radius: 12px;
    border: 2px solid rgba(0, 120, 212, 0.15);
    box-shadow: 0 8px 24px rgba(0, 120, 212, 0.12);
    margin-bottom: var(--spacing-2xl);
    transition: all 0.3s ease;
}

.contact-email-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 120, 212, 0.18);
    border-color: rgba(0, 120, 212, 0.3);
}

.email-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    animation: email-float 3s ease-in-out infinite;
}

@keyframes email-float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

.email-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

.email-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--neutral-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.email-address {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-blue);
    text-decoration: none;
    transition: all 0.2s ease;
    position: relative;
}

.email-address::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue) 0%, var(--primary-blue-light) 100%);
    transition: width 0.3s ease;
}

.email-address:hover {
    color: var(--primary-blue-dark);
}

.email-address:hover::after {
    width: 100%;
}

.contact-tagline {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--neutral-gray-900);
    font-style: italic;
    margin: 0;
}

/* ============================================
   FOOTER - Professional Information
   ============================================ */
.footer {
    background: linear-gradient(135deg, #1a2f45 0%, #0d1b2a 100%);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    color: var(--white);
    border-top: 2px solid rgba(0, 120, 212, 0.3);
    position: relative;
    overflow: hidden;
}

/* Geometric line pattern background */
.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(135deg, transparent 45%, rgba(0, 120, 212, 0.08) 45%, rgba(0, 120, 212, 0.08) 47%, transparent 47%),
        linear-gradient(45deg, transparent 45%, rgba(0, 120, 212, 0.05) 45%, rgba(0, 120, 212, 0.05) 47%, transparent 47%);
    background-size: 200px 200px;
    opacity: 0.6;
}

/* Additional diagonal lines */
.footer::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(135deg, transparent 48%, rgba(0, 120, 212, 0.06) 48%, rgba(0, 120, 212, 0.06) 52%, transparent 52%);
    background-size: 300px 300px;
    background-position: 100px 0;
    opacity: 0.4;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
    position: relative;
    z-index: 1;
}

.footer-brand {
    flex: 1;
    max-width: 400px;
}

.footer-logo {
    width: 260px;
    height: auto;
    margin-bottom: var(--spacing-lg);
    filter: drop-shadow(0 2px 8px rgba(0, 120, 212, 0.3));
}

.footer-tagline {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    margin-bottom: 0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-3xl);
}

.footer-column {
    min-width: 160px;
}

.footer-column h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--white);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-size: 0.875rem;
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    font-size: var(--font-size-base);
    transition: all 0.2s ease;
    display: inline-block;
}

.footer-column ul li a:hover {
    color: var(--primary-blue-light);
    transform: translateX(4px);
}

.footer-column ul li span {
    color: rgba(255, 255, 255, 0.75);
    font-size: var(--font-size-base);
    line-height: 1.8;
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    margin-top: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    font-weight: 400;
}

/* ============================================
   ANIMATIONS - Smooth Transitions
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero {
    animation: fadeIn 0.8s ease-out;
}

/* ============================================
   RESPONSIVE DESIGN - Mobile Optimization
   ============================================ */
@media (max-width: 992px) {
    .about-content {
        flex-direction: column;
    }
    
    .about-text {
        padding: var(--spacing-md);
    }
    
    .about-image {
        display: block;
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }
    
    .ai-visualization {
        height: 350px;
        width: 100%;
        max-width: 100%;
        display: flex !important;
        margin: var(--spacing-xl) auto;
        overflow: hidden;
    }
    
    .ai-core {
        width: 50px;
        height: 50px;
    }
    
    .ring-1 { width: 100px; height: 100px; }
    .ring-2 { width: 160px; height: 160px; }
    .ring-3 { width: 220px; height: 220px; }
    
    .orbit-node {
        width: 10px;
        height: 10px;
    }
    
    .company-name {
        font-size: var(--font-size-3xl);
    }
    
    .about-section h2,
    .contact-section h2 {
        font-size: var(--font-size-2xl);
    }
    
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-2xl);
    }
    
    .footer-brand {
        max-width: 100%;
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-wrap: wrap;
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Mobile menu backdrop */
    .nav::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0, 0, 0, 0.7);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: -1;
        backdrop-filter: blur(4px);
    }
    
    .nav.active::before {
        opacity: 1;
        visibility: visible;
    }
    
    .nav {
        position: fixed;
        top: 0;
        right: -280px;
        width: 280px;
        height: 100vh;
        background: linear-gradient(180deg, var(--secondary-navy) 0%, #1a2f45 100%);
        padding: 100px 0 var(--spacing-xl);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1000;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3);
        overflow-y: auto;
        overflow-x: hidden;
    }
    
    .nav.active {
        right: 0;
    }
    
    /* Futuristic slide-in animation */
    .nav.active ul li {
        animation: slideInRight 0.5s ease-out forwards;
        opacity: 0;
    }
    
    .nav.active ul li:nth-child(1) { animation-delay: 0.1s; }
    .nav.active ul li:nth-child(2) { animation-delay: 0.2s; }
    .nav.active ul li:nth-child(3) { animation-delay: 0.3s; }
    
    @keyframes slideInRight {
        from {
            opacity: 0;
            transform: translateX(50px);
        }
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }
    
    .nav ul {
        flex-direction: column;
        gap: 0;
        padding: 0 var(--spacing-lg);
    }
    
    .nav ul li {
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .nav ul li a {
        display: block;
        padding: var(--spacing-md) 0;
        font-size: 1.125rem;
    }
    
    .nav ul li a.active::after {
        display: none;
    }
    
    .nav-btn {
        display: block;
        text-align: center;
        margin-top: var(--spacing-md);
        padding: 14px 24px !important;
    }
    
    .hero-badge {
        padding: 8px 20px;
        margin-bottom: var(--spacing-md);
    }
    
    .badge-text {
        font-size: 0.75rem;
    }
    
    .company-name {
        font-size: var(--font-size-2xl);
        padding-bottom: var(--spacing-sm);
    }
    
    .company-name::after {
        width: 60px;
        height: 3px;
    }
    
    .description {
        font-size: 1rem;
        padding: 0 var(--spacing-sm);
    }
    
    .description p {
        font-size: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        max-width: 320px;
        margin: 0 auto;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .about-text p::before {
        width: 3px;
    }
    
    .about-section h2,
    .contact-section h2 {
        font-size: var(--font-size-2xl);
    }
    
    .about-section h2::after,
    .contact-section h2::after {
        width: 50px;
        height: 3px;
    }
    
    .contact-email-box {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-lg);
    }
    
    .email-content {
        align-items: center;
    }
    
    .email-address {
        font-size: 1.25rem;
    }
    
    .contact-tagline {
        font-size: 1.125rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-badge {
        margin-bottom: var(--spacing-md);
    }
    
    .company-name {
        font-size: 2rem;
        letter-spacing: -0.01em;
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-md);
    }
    
    .company-name::after {
        width: 50px;
        height: 3px;
    }
    
    .description {
        font-size: 1rem;
        margin-bottom: var(--spacing-xl);
        line-height: 1.7;
    }
    
    .cta-buttons {
        margin-top: 0;
        gap: var(--spacing-sm);
    }
    
    .btn {
        padding: 14px 32px;
        font-size: 0.9375rem;
    }
    
    .hero {
        min-height: 100vh;
        height: auto;
        padding: 0 0 var(--spacing-2xl);
        justify-content: flex-start;
    }
    
    .hero .container {
        padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
        display: block;
        height: auto;
        margin-top: 0;
    }
    
    .about-section,
    .contact-section {
        padding: var(--spacing-2xl) 0;
    }
    
    .email-icon {
        font-size: 2.5rem;
    }
    
    .email-address {
        font-size: 1.125rem;
        word-break: break-all;
    }
    
    .contact-intro {
        font-size: 1rem;
    }
    
    .contact-tagline {
        font-size: 1rem;
    }
}

/* ============================================
   BACK TO TOP BUTTON
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 120, 212, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.8);
}

.back-to-top.visible {
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) scale(1) !important;
}

.back-to-top:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 24px rgba(0, 120, 212, 0.5);
    background: linear-gradient(135deg, var(--primary-blue-dark) 0%, #004578 100%);
}

.back-to-top:active {
    transform: translateY(-2px) scale(1);
}

.back-to-top svg {
    animation: bounce-arrow 2s ease-in-out infinite;
}

@keyframes bounce-arrow {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-4px);
    }
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .back-to-top {
        bottom: 16px !important;
        right: 16px !important;
        width: 48px !important;
        height: 48px !important;
    }
}

/* ============================================
   ACCESSIBILITY - Focus States
   ============================================ */
*:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    max-width: 100vw;
}

/* Selection color */
::selection {
    background-color: var(--primary-blue);
    color: var(--white);
}