/* ========================================
   CSS CUSTOM PROPERTIES - DESIGN SYSTEM
   ======================================== */
:root {
    /* Brand Colors - Blue Tech Palette (from Wolf Logo) */
    --primary-blue: #1E90FF;
    --primary-blue-light: #4DB8FF;
    --primary-blue-lighter: #7DD3FF;
    --primary-blue-dark: #0066CC;
    --accent-cyan: #00D9FF;
    --accent-cyan-light: #5EEDFF;

    /* Neutral Colors */
    --bg-primary: #0F0F1E;
    --bg-secondary: #1A1A2E;
    --bg-card: rgba(255, 255, 255, 0.05);
    --text-primary: #FFFFFF;
    --text-secondary: #B4B4C8;
    --text-muted: #8B8B9E;

    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.15);

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

    /* Typography */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-heading: 'Rajdhani', 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: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

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

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

/* ========================================
   HEADER
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 15, 30, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

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

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.logo-text {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 900;
    font-stretch: expanded;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--primary-blue-light), var(--text-primary));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: color var(--transition-base);
    position: relative;
}

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

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

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

.btn-contact {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--primary-blue-light);
}

.btn-contact::after {
    display: none;
}

.btn-contact:hover {
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.4);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 100px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(30, 144, 255, 0.08), transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(77, 184, 255, 0.06), transparent 40%),
        linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
    z-index: -1;
}

/* Circuit Board Background */
.circuit-background {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('circuit-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
    opacity: 0.4;
    pointer-events: none;
    will-change: transform;
}

.hero-content {
    max-width: 900px;
    text-align: center;
    margin: 0 auto;
    padding: var(--spacing-2xl) 0;
}

.hero-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-5xl);
    font-weight: 900;
    font-stretch: expanded;
    letter-spacing: 0.02em;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease;
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    color: var(--text-primary);
    box-shadow: 0 4px 16px rgba(124, 58, 237, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.5);
}

.btn-secondary {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--glass-border);
    border-color: var(--primary-blue-light);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* ========================================
   SECTIONS
   ======================================== */
.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-4xl);
    font-weight: 900;
    font-stretch: expanded;
    letter-spacing: 0.03em;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

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

/* ========================================
   SERVICES SECTION
   ======================================== */
.services {
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-blue-light);
    box-shadow: 0 12px 32px rgba(124, 58, 237, 0.2);
    background: var(--glass-border);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: center;
    align-items: center;
}

.service-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 800;
    font-stretch: expanded;
    letter-spacing: 0.02em;
    margin-bottom: var(--spacing-sm);
    color: var(--primary-blue-lighter);
}

.service-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   INDUSTRIES SECTION
   ======================================== */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.industry-card {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    min-height: 250px;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    transition: all var(--transition-base);
}

.industry-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary-blue), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
    z-index: 0;
}

.industry-card:hover::before {
    opacity: 0.1;
}

.industry-card:hover {
    transform: scale(1.03);
    border-color: var(--primary-blue);
}

.industry-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top right, rgba(167, 139, 250, 0.1), transparent);
    z-index: 0;
}

.industry-content {
    position: relative;
    z-index: 1;
}

.industry-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: 800;
    font-stretch: expanded;
    letter-spacing: 0.02em;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.industry-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ========================================
   CAPABILITIES SECTION
   ======================================== */
.capabilities {
    background: var(--bg-secondary);
}

.capabilities-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-xl);
}

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

.capability-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.capability-item:hover {
    background: var(--glass-border);
    border-color: var(--primary-blue-light);
    transform: translateX(8px);
}

.capability-icon {
    font-size: var(--font-size-2xl);
    flex-shrink: 0;
}

.capability-text h4 {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 800;
    font-stretch: expanded;
    letter-spacing: 0.02em;
    margin-bottom: var(--spacing-xs);
    color: var(--primary-blue-lighter);
}

.capability-text p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta {
    background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.1), transparent 50%);
    animation: rotate 20s linear infinite;
}

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

.cta-title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-4xl);
    font-weight: 900;
    font-stretch: expanded;
    letter-spacing: 0.02em;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.cta-buttons {
    margin-bottom: var(--spacing-md);
}

.cta-info {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    justify-content: center;
}

.footer-logo-full {
    width: 150px;
    height: auto;
}

.footer-logo-icon {
    width: 48px;
    height: 48px;
}

.footer-logo-text {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: 900;
    font-stretch: expanded;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--primary-blue-light), var(--text-primary));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
}

.footer-description {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.footer-heading {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-base);
    font-weight: 800;
    font-stretch: expanded;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    text-transform: uppercase;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--primary-blue-light);
}

.footer-links li {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   RESPONSIVE DESIGN - TABLET
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

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

    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .capabilities-content {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   RESPONSIVE DESIGN - MOBILE
   ======================================== */
@media (max-width: 768px) {
    :root {
        --spacing-2xl: 3rem;
        --spacing-3xl: 4rem;
    }

    /* Mobile Menu Button - Default Hidden */
    .mobile-menu-btn {
        display: none;
        background: transparent;
        border: none;
        cursor: pointer;
        padding: 0.5rem;
        z-index: 1100;
    }

    .mobile-menu-btn span {
        display: block;
        width: 25px;
        height: 2px;
        background-color: var(--text-primary);
        margin: 5px 0;
        transition: 0.3s;
        border-radius: 2px;
    }

    /* Hamburger Animation when Active */
    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    /* Mobile Header Layout */
    .header-content {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-sm) 0;
        position: relative;
        /* Ensure context for absolute nav */
    }

    .mobile-menu-btn {
        display: block;
        /* Show on mobile */
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        /* Hidden off-screen */
        width: 100%;
        height: 100vh;
        background: rgba(15, 15, 30, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: right 0.4s ease;
        padding: 2rem;
        z-index: 1000;
    }

    .nav.active {
        right: 0;
        /* Slide in */
    }

    .nav-link {
        font-size: var(--font-size-xl);
        margin: 1.5rem 0;
    }

    .hero {
        min-height: auto;
        padding-top: 150px;
    }

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

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

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        text-align: center;
    }

    .section {
        padding: var(--spacing-2xl) 0;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

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

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

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

    .capabilities-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .capability-item {
        flex-direction: column;
        text-align: center;
    }

    .cta-title {
        font-size: var(--font-size-2xl);
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: var(--font-size-2xl);
    }

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

    .service-card,
    .industry-card {
        padding: var(--spacing-md);
    }

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

    .btn-large {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
}