/* DESIGN VARIABLES */
:root {
    --bg-color: #050d1f;
    --card-bg: #0a1628;
    --primary-blue: #1a6fff;
    --accent-blue: #4d9fff;
    --text-white: #ffffff;
    --text-muted: #a0aec0;
    --nav-bg: rgba(5, 13, 31, 0.85);
    
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-white);
    overflow-x: hidden;
}

body {
    position: relative;
    overflow-x: hidden;
}

/* BACKGROUND PARTICLE CANVAS */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
    opacity: 0.6;
}

/* TYPOGRAPHY */
h1, h2, h3, h4 {
    color: var(--text-white);
    font-weight: 600;
}

.hero-title {
    font-size: 4rem;
    letter-spacing: 12px;
    text-transform: uppercase;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #fff, var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-tagline {
    font-size: 0.9rem;
    letter-spacing: 6px;
    text-transform: uppercase;
    color: var(--accent-blue);
    margin-bottom: 2rem;
    font-weight: 600;
}

.hero-headline {
    font-size: 2.5rem;
    max-width: 800px;
    margin: 0 auto 1rem;
    line-height: 1.2;
}

.hero-subheadline {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 3rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-blue);
    border-radius: 2px;
    box-shadow: 0 0 10px var(--primary-blue);
}

.section-intro {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* BUTTONS */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--text-white);
    box-shadow: 0 4px 15px rgba(26, 111, 255, 0.3);
}

.btn-primary:hover {
    background-color: var(--accent-blue);
    box-shadow: 0 0 20px rgba(77, 159, 255, 0.6);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background-color: rgba(26, 111, 255, 0.1);
    box-shadow: 0 0 20px rgba(26, 111, 255, 0.4);
    transform: translateY(-2px);
}

.btn-full {
    width: 100%;
}

/* NAVBAR */
#navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
}

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

.nav-logo-img {
    height: 40px;
    object-fit: contain;
    mix-blend-mode: screen;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-white);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: var(--transition-fast);
}

.nav-links a:hover {
    color: var(--accent-blue);
    text-shadow: 0 0 8px rgba(77, 159, 255, 0.5);
}

.nav-burger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.nav-burger span {
    width: 25px;
    height: 2px;
    background-color: var(--text-white);
    transition: var(--transition-fast);
}

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

.section-padding {
    padding: 6rem 0;
}

/* HERO SECTION */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 6rem 2rem 2rem;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.logo-container {
    position: relative;
    max-width: 650px;
    width: 90%;
    margin: 0 auto 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140%;
    height: 140%;
    background: radial-gradient(ellipse at center, rgba(26,111,255,0.3) 0%, rgba(5,13,31,0) 60%);
    animation: pulse-glow 4s infinite alternate;
    z-index: 1;
    pointer-events: none;
}

@keyframes pulse-glow {
    0% { transform: translate(-50%, -50%) scale(0.9); opacity: 0.4; }
    100% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
}

.hero-logo-img {
    width: 100%;
    height: auto;
    object-fit: contain;
    position: relative;
    z-index: 2;
    animation: float 6s ease-in-out infinite;
    mix-blend-mode: screen;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.scroll-down {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    animation: bounce 2s infinite;
}

.scroll-down svg {
    width: 30px;
    height: 30px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0) translateX(-50%); }
    40% { transform: translateY(-10px) translateX(-50%); }
    60% { transform: translateY(-5px) translateX(-50%); }
}

/* STATS */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 4rem;
}

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

.stat-value {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-blue);
    text-shadow: 0 0 15px rgba(77, 159, 255, 0.4);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-muted);
}

.section-subtitle {
    text-align: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.cards-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.02);
    transition: var(--transition-smooth);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-color: rgba(26, 111, 255, 0.3);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.card h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* SERVICES */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.02);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at top right, rgba(26, 111, 255, 0.1), transparent 50%);
    opacity: 0;
    transition: var(--transition-smooth);
}

.service-card:hover {
    transform: scale(1.02);
    border-color: rgba(77, 159, 255, 0.5);
    box-shadow: 0 0 30px rgba(26, 111, 255, 0.15);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card.featured {
    grid-column: span 2;
    background: linear-gradient(145deg, var(--card-bg), #0c1c36);
    border: 1px solid rgba(26, 111, 255, 0.3);
}

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

.service-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    position: relative;
    z-index: 1;
}

.tags span {
    background-color: rgba(26, 111, 255, 0.1);
    color: var(--accent-blue);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.animated-bars {
    margin-top: 2rem;
    position: relative;
    z-index: 1;
}

.bar-container {
    margin-bottom: 1rem;
}

.bar-label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
    color: var(--text-white);
}

.bar {
    width: 100%;
    height: 8px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-blue), var(--accent-blue));
    border-radius: 4px;
    box-shadow: 0 0 10px var(--accent-blue);
    width: 0; /* Animated via JS */
    transition: width 1.5s ease-out;
}

/* PORTFOLIO */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-btn {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--primary-blue);
    color: var(--text-white);
    border-color: var(--primary-blue);
    box-shadow: 0 0 15px rgba(26, 111, 255, 0.4);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.portfolio-card {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
}

.portfolio-card:hover {
    border-color: var(--primary-blue);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(-5px);
}

.card-badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-card h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
}

.portfolio-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.card-link {
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition-fast);
}

.card-link:hover {
    text-shadow: 0 0 8px rgba(77, 159, 255, 0.5);
}

/* CONTACT */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    margin-top: 3rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 2rem;
}

.info-icon {
    font-size: 1.5rem;
}

.info-item h4 {
    margin-bottom: 0.2rem;
}

.info-item p {
    color: var(--text-muted);
}

.contact-text {
    margin-bottom: 2rem;
    line-height: 1.6;
}

.quick-contacts {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.quick-card {
    background-color: var(--card-bg);
    padding: 0.8rem 1.2rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.quick-card:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.contact-form {
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-white);
    font-family: inherit;
    transition: var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    background-color: rgba(26, 111, 255, 0.05);
    box-shadow: 0 0 10px rgba(26, 111, 255, 0.2);
}

/* FOOTER */
footer {
    background-color: #030814;
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-logo {
    height: 40px;
    margin-bottom: 1rem;
    mix-blend-mode: screen;
}

.footer-tagline {
    font-size: 0.8rem;
    letter-spacing: 3px;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-bottom a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-bottom a:hover {
    color: var(--accent-blue);
}

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

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

/* RESPONSIVE */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .cards-grid-3 {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .service-card.featured {
        grid-column: span 1;
    }

    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 3rem;
        letter-spacing: 8px;
    }
    
    .hero-headline {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--card-bg);
        flex-direction: column;
        gap: 0;
        text-align: center;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .nav-links.active {
        max-height: 300px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-links li {
        padding: 1rem 0;
        border-top: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-burger {
        display: flex;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .hero-ctas {
        flex-direction: column;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-headline {
        font-size: 1.5rem;
    }
}