/* ==========================================================================
   CSS Variables & Tokens
   ========================================================================== */
:root {
    /* Colors */
    --color-primary: #1d4ed8;       /* Tech Blue */
    --color-primary-light: #3b82f6; /* Lighter Blue */
    --color-primary-dark: #1e3a8a;  /* Dark Blue */
    --color-dark-bg: #0f172a;       /* Dark Gray / Slate */
    --color-dark-surface: #1e293b;  /* Lighter Gray / Surface */
    --color-dark-surface-2: #334155;
    --color-white: #ffffff;
    --color-text-main: #cbd5e1;     /* Light Gray Text */
    --color-text-muted: #94a3b8;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease-in-out;
    
    /* Box Shadows */
    --shadow-sm: 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, 0.5), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 15px rgba(59, 130, 246, 0.5);
    
    /* Layout */
    --container-width: 1200px;
    --section-padding: 100px 0;
}

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

html {
    scroll-behavior: smooth; /* Smooth scrolling for nav links */
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-white);
    font-weight: 700;
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: var(--section-padding);
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--color-primary-light);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.btn-whatsapp {
    background-color: #25D366;
    color: #fff;
    margin-top: 20px;
}
.btn-whatsapp:hover {
    background-color: #1ebe57;
    box-shadow: 0 0 15px rgba(37, 211, 102, 0.5);
    transform: translateY(-2px);
}

/* Section Title */
.section-title {
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

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

.divider {
    height: 4px;
    width: 60px;
    background: var(--color-primary);
    margin: 0 auto 20px;
    border-radius: 2px;
}

.divider.left {
    margin: 0 0 20px 0;
}

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.85); /* Glassmorphism */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-normal);
}

#header.scrolled {
    padding: 10px 0;
    box-shadow: var(--shadow-md);
    background: rgba(15, 23, 42, 0.95);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: height var(--transition-normal);
}

#header.scrolled .nav-container {
    height: 70px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    color: var(--color-primary-light);
}

.logo span {
    color: var(--color-primary-light);
    font-weight: 400;
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-list a {
    font-weight: 500;
    font-size: 1rem;
    position: relative;
    padding: 5px 0;
}

.nav-list a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--color-primary-light);
    transition: width var(--transition-normal);
}

.nav-list a:hover::after,
.nav-list a.active::after {
    width: 100%;
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--color-white);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-white);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.hero-slideshow .slide {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-slideshow .slide.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(15,23,42,0.9) 0%, rgba(15,23,42,0.6) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, #93c5fd);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--color-text-main);
    max-width: 700px;
    margin: 0 auto 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services {
    background-color: var(--color-dark-surface);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

/* Span the last item maybe */
.service-card {
    background: var(--color-dark-bg);
    padding: 40px 30px;
    border-radius: 16px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(59, 130, 246, 0.3);
}

/* Subtle glow top line on hover */
.service-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: linear-gradient(90deg, var(--color-primary), transparent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

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

.icon-wrapper {
    width: 60px;
    height: 60px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--color-primary-light);
    margin-bottom: 25px;
    transition: all var(--transition-normal);
}

.service-card:hover .icon-wrapper {
    background: var(--color-primary);
    color: var(--color-white);
    transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--color-text-muted);
}

/* ==========================================================================
   Technologies Section
   ========================================================================== */
.technologies {
    background-color: var(--color-dark-bg);
    position: relative;
}

.tech-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
}

.tech-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--color-dark-surface);
    padding: 15px 30px;
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.02);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1.1rem;
    color: var(--color-white);
    transition: all var(--transition-fast);
    cursor: default;
}

.tech-badge i {
    font-size: 1.5rem;
    color: var(--color-primary-light);
}

.tech-badge:hover {
    background: var(--color-primary-dark);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
    transform: translateY(-5px);
}

/* ==========================================================================
   Products Section
   ========================================================================== */
.products {
    background-color: var(--color-dark-surface);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.product-card {
    background: var(--color-dark-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.05);
    transition: all var(--transition-normal);
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    border-color: rgba(59, 130, 246, 0.3);
}

.product-img {
    width: 100%;
    height: 350px;
    position: relative;
    overflow: hidden;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-img img {
    transform: scale(1.05);
}

.img-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(15, 23, 42, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.product-card:hover .img-overlay {
    opacity: 1;
}

.view-btn {
    width: 60px;
    height: 60px;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transform: translateY(20px);
    transition: all var(--transition-normal);
}

.product-card:hover .view-btn {
    transform: translateY(0);
}

.view-btn:hover {
    background: var(--color-white);
    color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.product-info {
    padding: 30px;
}

.product-info h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

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

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

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info .section-title {
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-item i {
    width: 50px;
    height: 50px;
    background: var(--color-dark-surface);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--color-primary-light);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

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

.contact-form {
    background: var(--color-dark-surface);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255,255,255,0.05);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--color-white);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--color-dark-bg);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 15px;
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.submit-btn {
    width: 100%;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: #080c14;
    padding: 80px 0 20px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-about .logo {
    margin-bottom: 20px;
}

.footer-about p {
    color: var(--color-text-muted);
    max-width: 400px;
}

.footer h3 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer h3::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0;
    width: 40px; height: 2px;
    background: var(--color-primary);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--color-text-muted);
}

.footer-links a:hover {
    color: var(--color-primary-light);
    padding-left: 5px;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    transition: all var(--transition-fast);
}

.social-icons a:hover {
    background: var(--color-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* ==========================================================================
   Animations
   ========================================================================== */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.animate-up.show {
    opacity: 1;
    transform: translateY(0);
}

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

/* Scroll animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.show {
    opacity: 1;
    transform: translateY(0);
}


/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    nav {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--color-dark-bg);
        border-top: 1px solid rgba(255,255,255,0.05);
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        opacity: 0;
        transition: all var(--transition-normal);
        z-index: -1;
    }

    nav.active {
        transform: translateY(0);
        opacity: 1;
        z-index: 100;
    }

    .nav-list {
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        text-align: center;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .tech-grid {
        gap: 10px;
    }
    
    .tech-badge {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}