/* Color Palette & Custom Properties */
:root {
    --bg-primary: #001424;
    --bg-secondary: #001d33;
    --bg-tertiary: #002847;
    --text-primary: #ffffff;
    --text-secondary: #d5e0e7;
    --text-muted: #aac0cf;
    --accent: #80a1b7;
    --accent-dim: rgba(128, 161, 183, 0.15);
    --accent-hover: #ffffff;
    --highlight: #00b4d8;
    --highlight-dim: rgba(0, 180, 216, 0.15);
    --highlight-hover: #00f5d4;
    --border: #003761;
    --border-light: #004c85;
    --gradient-start: #00101e;
    --gradient-end: #001b2e;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Texture Noise Overlay */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    opacity: 0.02;
    pointer-events: none;
    z-index: 1000;
}

.mono {
    font-family: 'Space Mono', monospace;
}

/* Accessibility Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--highlight);
    color: var(--bg-primary);
    padding: 8px 16px;
    z-index: 1001;
    text-decoration: none;
    font-weight: 600;
    border-radius: 0 0 8px;
    transition: top 0.3s ease;
}

.skip-link:focus {
    top: 0;
}

/* Layout Utilities */
section {
    padding: 6rem 2rem;
    position: relative;
}

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

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

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* Custom Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--highlight);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--highlight-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 180, 216, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    border-color: var(--highlight);
    color: var(--highlight);
    transform: translateY(-2px);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.4;
    }
}

/* Navigation System */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(0, 10, 18, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    transition: background 0.3s ease;
}

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

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

.logo img {
    height: 40px;
    width: auto;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
    padding: 0.25rem 0;
}

.nav-links a::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--highlight);
    transition: width 0.3s ease;
}

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

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    z-index: 99;
    animation: fadeInDown 0.3s ease-out;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    transition: color 0.2s ease;
}

.mobile-menu a:last-child {
    border-bottom: none;
}

.mobile-menu a:hover {
    color: var(--highlight);
    background: rgba(255, 255, 255, 0.02);
}

/* Responsive Menu trigger */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
    section {
        padding: 4rem 1.5rem;
    }
    .section-header {
        margin-bottom: 2.5rem;
    }
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(180deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    overflow: hidden;
    padding-top: 100px;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(0, 180, 216, 0.15) 0%, transparent 60%),
        radial-gradient(circle at 10% 80%, rgba(128, 161, 183, 0.08) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--highlight-dim);
    border: 1px solid rgba(0, 180, 216, 0.3);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--highlight);
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease-out;
}

.hero-badge::before {
    content: "";
    width: 6px;
    height: 6px;
    background: var(--highlight);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.hero-logo {
    width: 480px;
    max-width: 80vw;
    margin: 0 auto 2.5rem;
    animation: fadeInUp 0.8s ease-out backwards;
    filter: drop-shadow(0 0 30px rgba(0, 180, 216, 0.15));
    transition: filter 0.3s ease;
}

.hero-logo:hover {
    filter: drop-shadow(0 0 45px rgba(0, 180, 216, 0.3));
}

.hero-logo img {
    width: 100%;
    height: auto;
    display: block;
}

.hero h1 {
    font-size: clamp(2.2rem, 7vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--highlight) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: clamp(1rem, 2.2vw, 1.2rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.6s backwards;
}

.hero-image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40%;
    background: 
        radial-gradient(ellipse at 50% 100%, var(--highlight-dim) 0%, transparent 60%),
        linear-gradient(to top, var(--bg-primary) 0%, transparent 100%);
    opacity: 0.8;
    pointer-events: none;
}

/* About Section */
.about {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 4rem;
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-illustration {
    width: 100%;
    height: auto;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    display: block;
}

.about-image-wrapper::before {
    content: "";
    position: absolute;
    inset: -15px 15px 15px -15px;
    border: 1px solid var(--highlight);
    border-radius: 12px;
    opacity: 0.2;
    z-index: 0;
    pointer-events: none;
}

.about-content h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.about-content p {
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
    font-size: 1.05rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.stat-card {
    text-align: center;
    background: rgba(0, 20, 36, 0.4);
    border: 1px solid var(--border);
    padding: 1.25rem 0.5rem;
    border-radius: 8px;
    transition: border-color 0.3s ease;
}

.stat-card:hover {
    border-color: var(--highlight);
}

.stat-number {
    font-family: 'Space Mono', monospace;
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    font-weight: 700;
    color: var(--highlight);
    display: block;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .about-image-wrapper {
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .about-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}

/* Services Section */
.services {
    background: var(--bg-primary);
}

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

.service-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--highlight);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.service-card:hover {
    border-color: var(--highlight);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

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

.service-icon {
    width: 48px;
    height: 48px;
    background: var(--highlight-dim);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    border: 1px solid rgba(0, 180, 216, 0.2);
}

.service-card h3 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Technologies Section */
.technologies {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.tech-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.75rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tech-card:hover {
    border-color: var(--highlight);
    background: var(--bg-tertiary);
    transform: translateY(-3px);
}

.tech-card h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.tech-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Contact Section */
.contact {
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 2rem;
}

.contact-image-wrapper {
    position: relative;
}

.contact-illustration {
    width: 100%;
    height: auto;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    display: block;
}

.contact-content-box {
    max-width: 500px;
}

.contact-content-box p {
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    font-size: 1.15rem;
}

.contact-email {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: 'Space Mono', monospace;
    font-size: 1.15rem;
    color: var(--highlight);
    text-decoration: none;
    padding: 1rem 2rem;
    border: 1px solid var(--highlight);
    border-radius: 8px;
    transition: all 0.3s ease;
    background: transparent;
}

.contact-email:hover {
    background: var(--highlight-dim);
    box-shadow: 0 0 25px rgba(0, 180, 216, 0.2);
    color: var(--text-primary);
}

@media (max-width: 992px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    .contact-image-wrapper {
        max-width: 600px;
        margin: 0 auto;
    }
    .contact-content-box {
        margin: 0 auto;
    }
}

/* Footer Section */
footer {
    padding: 2.5rem 2rem;
    text-align: center;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-size: 0.9rem;
}