/* Custom Properties / Design Tokens */
:root {
    /* Colors */
    --clr-navy: #0A192F;
    --clr-navy-light: #112240;
    --clr-cyan: #00E5FF;
    --clr-cyan-hover: #00B8CC;
    --clr-grey: #8892B0;
    --clr-white: #FFFFFF;
    --clr-glass: rgba(10, 25, 47, 0.7);
    --clr-glass-card: rgba(17, 34, 64, 0.6);
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--clr-navy);
    color: var(--clr-grey);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--clr-white);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: transparent;
    color: var(--clr-cyan);
    border: 1px solid var(--clr-cyan);
}

.btn-primary:hover {
    background-color: rgba(0, 229, 255, 0.1);
    box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

.btn-secondary {
    background-color: rgba(136, 146, 176, 0.1);
    color: var(--clr-white);
    border: 1px solid var(--clr-grey);
}

.btn-secondary:hover {
    background-color: rgba(136, 146, 176, 0.2);
    color: var(--clr-cyan);
    border-color: var(--clr-cyan);
}

.large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background-color: var(--clr-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
    padding: 0.5rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo {
    width: 50px;
    height: 50px;
    object-fit: cover;
    border-radius: 50%;
    border: 2px solid var(--clr-cyan);
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-title {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.5rem;
    letter-spacing: 4px;
    color: var(--clr-white);
}

.brand-subtitle {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 0.8rem;
    letter-spacing: 6px;
    color: var(--clr-cyan);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn-primary) {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--clr-white);
    position: relative;
}

.nav-links a:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--clr-cyan);
    transition: var(--transition);
}

.nav-links a:not(.btn-primary):hover::after {
    width: 100%;
}

.nav-links a:not(.btn-primary):hover {
    color: var(--clr-cyan);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    margin-bottom: 1.5rem;
    font-weight: 900;
}

.hero h1 span {
    color: var(--clr-cyan);
}

.hero .subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(10, 25, 47, 0.4) 0%, rgba(10, 25, 47, 1) 100%);
    z-index: 2;
}

.abstract-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
    opacity: 0.5;
    animation: float 20s infinite ease-in-out alternate;
}

.shape-1 {
    width: 500px;
    height: 500px;
    background: rgba(0, 229, 255, 0.15);
    top: -100px;
    right: -100px;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: rgba(136, 146, 176, 0.1);
    bottom: -50px;
    left: -100px;
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-30px, 50px) scale(1.1); }
}

/* Sections Common */
section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.accent-line {
    width: 60px;
    height: 3px;
    background-color: var(--clr-cyan);
    margin: 1rem auto 0;
}

/* About Section */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
}

.about-content p {
    margin-bottom: 1.5rem;
}

.about-content strong {
    color: var(--clr-white);
}

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

.service-card {
    background-color: var(--clr-navy-light);
    padding: 3rem 2rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--clr-cyan);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    background-color: rgba(17, 34, 64, 0.8);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 60px;
    height: 60px;
    color: var(--clr-cyan);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-card p {
    margin-bottom: 1.5rem;
}

.service-features {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
}

.service-features li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.service-features li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--clr-cyan);
}

/* Value Proposition */
.value-proposition {
    background-color: var(--clr-navy-light);
    position: relative;
}

.value-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.value-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.value-lead {
    font-size: 1.5rem;
    color: var(--clr-white);
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 300;
}

.value-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 4rem;
}

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

.stat-number {
    display: block;
    font-size: 3.5rem;
    font-family: var(--font-heading);
    font-weight: 900;
    color: var(--clr-cyan);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Footer */
footer {
    background-color: #020c1b;
    padding: 4rem 0 2rem;
}

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

.footer-brand p {
    margin-top: 1rem;
    max-width: 300px;
    font-size: 0.9rem;
}

.footer-contact h4, .footer-links h4 {
    color: var(--clr-white);
    font-family: var(--font-heading);
    margin-bottom: 1rem;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}

.footer-links ul li a:hover {
    color: var(--clr-cyan);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
}

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

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

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

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease-out;
}

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

/* Responsive Design */
.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger .line {
    width: 25px;
    height: 2px;
    background-color: var(--clr-white);
    margin: 5px;
    transition: var(--transition);
}

@media screen and (max-width: 768px) {
    .nav-links {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100vh;
        width: 70%;
        background-color: var(--clr-navy-light);
        flex-direction: column;
        justify-content: center;
        transition: var(--transition);
        box-shadow: -5px 0 15px rgba(0,0,0,0.5);
    }

    .nav-links.active {
        right: 0;
    }

    .hamburger {
        display: block;
        z-index: 1001;
    }

    .hamburger.active .line:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 5px);
    }

    .hamburger.active .line:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .line:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -5px);
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .value-stats {
        flex-direction: column;
        gap: 2rem;
    }
}