:root {
    --primary-color: #2563EB;
    --primary-dark: #1E40AF;
    --secondary-color: #22C55E;
    --secondary-dark: #16A34A;
    --text-color: #334155;
    --text-light: #64748B;
    --bg-light: #F8FAFC;
    --bg-white: #FFFFFF;
    --bg-dark: #0F172A;
    --gradient-main: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --transition: all 0.3s ease;
    --container-width: 1200px;
    --heading-color: var(--bg-dark);
    --footer-bg: var(--bg-dark);
    --card-bg: var(--bg-white);
    --header-bg: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] {
    --primary-color: #3B82F6;
    --primary-dark: #60A5FA;
    --secondary-color: #4ADE80;
    --secondary-dark: #22C55E;
    --text-color: #E2E8F0;
    --text-light: #94A3B8;
    --bg-light: #0F172A;
    --bg-white: #1E293B;
    --bg-dark: #F8FAFC; /* Inverted for some specific uses if any remaining */
    --heading-color: #F8FAFC;
    --footer-bg: #020617;
    --card-bg: #1E293B;
    --header-bg: rgba(15, 23, 42, 0.95);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    background-color: var(--bg-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--primary-color);
    background-color: rgba(0,0,0,0.05);
}

[data-theme="dark"] .theme-toggle:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Header */
.header {
    background-color: var(--header-bg);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    padding: 15px 0;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--heading-color);
}

.logo-img {
    height: 40px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-color);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-color);
    transition: var(--transition);
}

/* Buttons */
.btn-primary {
    background: var(--gradient-main);
    color: white !important;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.23);
}

.btn-secondary {
    background: var(--bg-white);
    color: var(--primary-color) !important;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600;
    border: 1px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: #f0f7ff;
}

.btn-light {
    background-color: var(--bg-white);
    color: var(--primary-color);
    padding: 12px 32px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: var(--shadow-md);
}

.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: radial-gradient(circle at top right, rgba(34, 197, 94, 0.05), transparent 40%),
                radial-gradient(circle at bottom left, rgba(37, 99, 235, 0.05), transparent 40%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 20px;
    color: var(--heading-color);
}

.highlight {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* Hero Animation Visual */
.connection-visual {
    position: relative;
    width: 400px;
    height: 400px;
    margin: 0 auto;
    max-width: 100%;
}

.circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.8;
}

.circle-1 {
    width: 200px;
    height: 200px;
    background: var(--primary-color);
    top: 50px;
    left: 50px;
    filter: blur(40px);
    animation: float 6s ease-in-out infinite;
}

.circle-2 {
    width: 250px;
    height: 250px;
    background: var(--secondary-color);
    bottom: 50px;
    right: 50px;
    filter: blur(40px);
    animation: float 8s ease-in-out infinite reverse;
}

.line {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 300px;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
    transform: translate(-50%, -50%) rotate(45deg);
    z-index: 1;
}

.shield-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 5rem;
    color: white;
    z-index: 2;
    text-shadow: 0 4px 10px rgba(0,0,0,0.1);
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.1));
}

@keyframes float {
    0% { transform: translate(0, 0); }
    50% { transform: translate(0, 20px); }
    100% { transform: translate(0, 0); }
}

/* About Section */
.about {
    padding: 100px 0;
    background-color: var(--bg-white);
}

.section-header {
    margin-bottom: 60px;
}

.subtitle {
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 10px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--heading-color);
    margin-bottom: 20px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.about-card {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 20px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    background: var(--card-bg);
    border-color: rgba(37, 99, 235, 0.1);
}

.icon-box {
    width: 60px;
    height: 60px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 25px;
}

.about-card:nth-child(2) .icon-box {
    background: rgba(34, 197, 94, 0.1);
    color: var(--secondary-color);
}

.about-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--heading-color);
}

/* Values Section */
.values {
    padding: 100px 0;
    background-color: var(--bg-light);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.value-item {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    display: flex;
    gap: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.value-item:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.value-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    min-width: 60px;
}

.value-content h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--heading-color);
}

.value-content p {
    font-size: 0.95rem;
    color: var(--text-light);
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: var(--gradient-main);
    color: white;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" xmlns="http://www.w3.org/2000/svg"><circle cx="1" cy="1" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

/* Footer */
.footer {
    background-color: var(--footer-bg);
    color: white;
    padding: 80px 0 30px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    display: block;
    margin-bottom: 15px;
}

.footer-brand p {
    color: #94a3b8;
    max-width: 300px;
}

.footer-col h4 {
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.footer-col ul li {
    margin-bottom: 15px;
}

.footer-col ul li a {
    color: #94a3b8;
}

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

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #94a3b8;
    font-size: 0.9rem;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    color: #94a3b8;
    font-size: 1.2rem;
}

.social-links a:hover {
    color: white;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
}

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-100 { animation-delay: 0.1s; transition-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; transition-delay: 0.2s; }

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

@keyframes pulse {
    0% {
        box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39), 0 0 0 0 rgba(37, 99, 235, 0.7);
    }
    70% {
        box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39), 0 0 0 10px rgba(37, 99, 235, 0);
    }
    100% {
        box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39), 0 0 0 0 rgba(37, 99, 235, 0);
    }
}

.btn-pulse {
    animation: pulse 2s infinite;
}

.btn-pulse:hover {
    animation: none;
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content p {
        margin: 0 auto 40px;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .hero-image {
        margin-top: 50px;
    }
    
    .connection-visual {
        width: 300px;
        height: 300px;
    }

    .circle-1 { width: 150px; height: 150px; }
    .circle-2 { width: 180px; height: 180px; }
    .line { width: 220px; }
    
    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0,0,0,0.1);
        padding: 20px 0;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }

    .cta h2 {
        font-size: 2rem;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-brand p {
        margin: 0 auto;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }

    .hero-btns {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary, .btn-secondary {
        width: 100%;
        text-align: center;
    }

    .value-item {
        flex-direction: column;
        text-align: center;
    }
    
    .value-number {
        margin: 0 auto;
    }

    .connection-visual {
        width: 250px;
        height: 250px;
    }
}