/* =========================================
   1. VARIABLES & RESET
   ========================================= */
:root {
    /* Brand Colors extracted from Logo concept */
    --primary-blue: #2563EB;       /* Royal Blue */
    --primary-dark: #1E3A8A;       /* Darker Blue for text/headings */
    --moon-lavender: #E0E7FF;      /* Light Periwinkle background */
    --moon-accent: #6366F1;        /* Stronger Lavender for borders/icons */
    
    /* Call to Action (The "AI" Color) */
    --accent-orange: #EA580C;      /* Burnt Orange */
    --accent-hover: #C2410C;
    
    /* Neutrals */
    --bg-white: #FFFFFF;
    --bg-light: #F8FAFC;
    --text-main: #1E293B;          /* Slate 800 */
    --text-muted: #64748B;         /* Slate 500 */
    
    /* Spacing */
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--bg-white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s ease;
}

ul {
    list-style: none;
}

/* Container Utility */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Button Utilities */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--accent-orange);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(234, 88, 12, 0.3);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

/* =========================================
   2. HEADER & NAVIGATION
   ========================================= */
.site-header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--moon-lavender);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 40px;
    width: auto;
    border-radius: 50%; /* Makes the moon logo circular */
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-dark);
}

.logo-text strong {
    color: var(--accent-orange); /* Highlights the AI */
}

/* Mobile Nav - Simple Scroll */
.main-nav {
    display: none; /* Hidden on very small mobile, shown on tablet+ */
}

.lang-switcher .lang-btn {
    font-weight: 700;
    color: var(--primary-blue);
    border: 2px solid var(--moon-lavender);
    padding: 0.3rem 0.8rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.lang-switcher .lang-btn:hover {
    background-color: var(--moon-lavender);
}

/* =========================================
   3. HERO SECTION
   ========================================= */
.hero-section {
    padding: 4rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-white) 0%, var(--moon-lavender) 100%);
}

.hero-section h1 {
    font-size: 2.5rem;
    line-height: 1.2;
    color: var(--primary-dark);
    margin-bottom: 1rem;
}

.hero-sub {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2rem auto;
}

/* =========================================
   4. ABOUT SECTION
   ========================================= */
.about-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-white);
    text-align: center;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-content h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary-dark);
}

.lead {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

/* =========================================
   5. PORTFOLIO SECTION
   ========================================= */
.portfolio-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--bg-light);
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
    color: var(--primary-dark);
}

.projects-grid {
    display: grid;
    grid-template-columns: 1fr; /* 1 column on mobile */
    gap: 2rem;
}

.project-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    border: 1px solid var(--moon-lavender);
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-blue);
}

.project-card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-dark);
}

.project-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.project-link {
    color: var(--primary-blue);
    font-weight: 600;
    font-size: 0.9rem;
}

.project-link:hover {
    text-decoration: underline;
}

/* =========================================
   6. INDUSTRIAL / PWA SECTION (Special)
   ========================================= */
.industrial-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--primary-dark); /* Dark background for contrast */
    color: white;
    background-image: radial-gradient(circle at top right, #2b4c9e, #1E3A8A);
}

.industrial-content {
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: inline-block;
    background-color: rgba(255,255,255,0.1);
    color: #93C5FD; /* Light Blue */
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(147, 197, 253, 0.3);
}

.industrial-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: white;
}

.industrial-desc {
    color: #CBD5E1; /* Light Gray */
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.tech-list {
    margin-top: 1.5rem;
}

.tech-list li {
    margin-bottom: 0.5rem;
    font-size: 1rem;
    color: #E2E8F0;
}

/* =========================================
   7. FOOTER
   ========================================= */
.site-footer {
    padding: 4rem 0 2rem 0;
    background-color: var(--bg-white);
    text-align: center;
    border-top: 1px solid var(--moon-lavender);
}

.site-footer h2 {
    font-size: 1.8rem;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.contact-details {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-blue);
}

.copyright {
    margin-top: 3rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* =========================================
   8. MEDIA QUERIES (Desktop & Tablet)
   ========================================= */
@media (min-width: 768px) {
    /* Header: Show Navigation on Desktop */
    .main-nav {
        display: block;
    }
    
    .main-nav ul {
        display: flex;
        gap: 2rem;
    }
    
    .main-nav a {
        font-weight: 500;
        color: var(--text-main);
        font-size: 0.95rem;
    }
    
    .main-nav a:hover {
        color: var(--primary-blue);
    }

    /* Hero */
    .hero-section {
        padding: 6rem 0;
    }
    
    .hero-section h1 {
        font-size: 3.5rem;
    }

    /* Grid Layouts */
    .projects-grid {
        grid-template-columns: repeat(3, 1fr); /* 3 Columns on desktop */
    }
}