/* ========================================
   CSS Variables & Color System
   ======================================== */
:root {
    /* Electric Blue Brand Colors */
    --electric-blue: #00d4ff;
    --electric-blue-dark: #0099cc;
    --electric-blue-light: #33ddff;
    --electric-blue-glow: rgba(0, 212, 255, 0.3);

    /* Neutral Colors */
    --color-dark: #0a0f1e;
    --color-darker: #050a15;
    --color-gray-900: #1a1f35;
    --color-gray-800: #2a2f45;
    --color-gray-700: #3a3f55;
    --color-gray-600: #5a5f75;
    --color-gray-500: #7a7f95;
    --color-gray-400: #9a9fb5;
    --color-gray-300: #bac0d0;
    --color-gray-200: #dadee8;
    --color-gray-100: #f0f2f5;
    --color-white: #ffffff;

    /* Semantic Colors */
    --color-success: #00ff88;
    --color-warning: #ffaa00;
    --color-error: #ff4444;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Layout */
    --container-max-width: 1200px;
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-base: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 20px var(--electric-blue-glow);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-gray-100);
    background-color: var(--color-dark);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ========================================
   Utility Classes
   ======================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.highlight {
    color: var(--electric-blue);
    position: relative;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(10, 15, 30, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    transition: all var(--transition-base);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-white);
}

.logo-img {
    height: 120px;
    width: auto;
    margin: -30px 0;
}

.logo-text {
    background: linear-gradient(135deg, var(--electric-blue), var(--electric-blue-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-2xl);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--color-gray-300);
    transition: color var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--electric-blue);
    transition: width var(--transition-base);
}

.nav-link:hover {
    color: var(--electric-blue);
}

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

.cta-link {
    background: linear-gradient(135deg, var(--electric-blue), var(--electric-blue-dark));
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-glow);
}

.cta-link:hover {
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--electric-blue-glow);
}

.cta-link::after {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--electric-blue);
    transition: all var(--transition-base);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-4xl) 0 var(--spacing-3xl);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 153, 204, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-dark) 0%, var(--color-darker) 100%);
    z-index: -1;
}

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

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    color: var(--color-white);
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-bottom: var(--spacing-3xl);
}

.hero-badges {
    display: flex;
    gap: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
}

.badge-icon {
    font-size: var(--font-size-2xl);
}

.badge-text {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-200);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--electric-blue), var(--electric-blue-dark));
    color: var(--color-white);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--electric-blue-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--electric-blue);
    border: 2px solid var(--electric-blue);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
}

/* ========================================
   Services Section
   ======================================== */
.services {
    padding: var(--spacing-4xl) 0;
    background: var(--color-darker);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-400);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
}

.service-card {
    background: linear-gradient(135deg, rgba(26, 31, 53, 0.8), rgba(10, 15, 30, 0.9));
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-2xl);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

.service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--border-radius-lg);
    color: var(--electric-blue);
    margin-bottom: var(--spacing-lg);
}

.service-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.service-description {
    font-size: var(--font-size-base);
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.service-features li {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    padding-left: var(--spacing-lg);
    position: relative;
}

.service-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--electric-blue);
    font-weight: 700;
}

/* ========================================
   About Section
   ======================================== */
.about {
    padding: var(--spacing-4xl) 0;
    background: var(--color-dark);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: start;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.about-description {
    font-size: var(--font-size-lg);
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--electric-blue);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.feature-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: rgba(0, 212, 255, 0.03);
    border-left: 3px solid var(--electric-blue);
    border-radius: var(--border-radius-md);
}

.feature-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--electric-blue);
    color: var(--color-dark);
    border-radius: 50%;
    font-weight: 700;
    flex-shrink: 0;
}

.feature-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.feature-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: 1.6;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    padding: var(--spacing-4xl) 0;
    background: var(--color-darker);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-4xl);
    margin-top: var(--spacing-3xl);
}

.contact-heading {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
}

.contact-text {
    font-size: var(--font-size-base);
    color: var(--color-gray-400);
    line-height: 1.7;
    margin-bottom: var(--spacing-2xl);
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-method {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: rgba(0, 212, 255, 0.05);
    border-radius: var(--border-radius-md);
}

.method-icon {
    font-size: var(--font-size-2xl);
}

.method-label {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-xs);
}

.method-value {
    font-size: var(--font-size-base);
    color: var(--electric-blue);
    font-weight: 600;
}

.method-value:hover {
    text-decoration: underline;
}

/* ========================================
   Contact Form
   ======================================== */
.contact-form {
    background: linear-gradient(135deg, rgba(26, 31, 53, 0.6), rgba(10, 15, 30, 0.8));
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-2xl);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-sm);
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    color: var(--color-white);
    background: rgba(10, 15, 30, 0.8);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-base);
}

.form-input:focus {
    outline: none;
    border-color: var(--electric-blue);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-input::placeholder {
    color: var(--color-gray-600);
}

textarea.form-input {
    resize: vertical;
    min-height: 120px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-dark);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-4xl);
    margin-bottom: var(--spacing-2xl);
}

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

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer-tagline {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
}

.footer-heading {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.footer-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-list a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    transition: color var(--transition-base);
}

.footer-list a:hover {
    color: var(--electric-blue);
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    text-align: center;
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    /* Navigation */
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 15, 30, 0.98);
        backdrop-filter: blur(10px);
        padding: var(--spacing-xl);
        gap: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-base);
        border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    /* Hero */
    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

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

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

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

    /* About */
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: var(--font-size-2xl);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
    }
}