/* Design System */
:root {
    --primary-color: #10b981; /* Bright Emerald */
    --accent-color: #34d399; /* Lighter Mint */
    --accent-light: rgba(16, 185, 129, 0.1);
    --text-main: #f8fafc; /* Slate 50 */
    --text-muted: #94a3b8; /* Slate 400 */
    --bg-light: #020617; /* Slate 950 (Dark) */
    --bg-white: #0f172a; /* Slate 900 (Surface) */
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --section-padding: 6rem 1.5rem;
    --container-max-width: 1100px;
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@400;600;700&display=swap');

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

html {
    scroll-behavior: smooth;
}

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

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

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

ul {
    list-style: none;
}

/* Layout */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    width: 100%;
}

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

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: #ffffff;
    backdrop-filter: blur(12px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 2rem;
    max-width: var(--container-max-width);
    margin: 0 auto;
}

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

.logo-img {
    height: 48px; /* Adjusted height for visibility */
    width: auto;
    object-fit: contain;
    /* Since the user mentioned a white background, we'll use mix-blend-mode 
       to integrate it if possible, or just ensure it's sized correctly. */
    transition: var(--transition-smooth);
}

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

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #1e293b; /* Slate 800 for visibility on white header */
}

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

/* Hero Section */
.hero {
    min-height: 40vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 180px;
    padding-bottom: 120px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--primary-color);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition-smooth);
    border: 2px solid var(--primary-color);
}

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

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.service-card {
    background: var(--bg-white);
    padding: 3rem 2rem;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(16, 185, 129, 0.1);
    border-color: var(--accent-color);
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

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

/* Languages Section */
.languages {
    background: #0f172a;
    color: white;
    text-align: center;
}

.languages h2 {
    color: white;
    margin-bottom: 3rem;
}

.lang-list {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.lang-item {
    font-size: 1.5rem;
    font-weight: 600;
    padding: 1rem 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.lang-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    margin-bottom: 1.5rem;
}

.contact-form {
    background: #0f172a;
    padding: 3rem;
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-muted);
}

input, textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(2, 6, 23, 0.5);
    color: white;
    border-radius: 12px;
    font-family: inherit;
    transition: var(--transition-smooth);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px var(--accent-light);
}

.social-icon {
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.social-icon:hover {
    color: var(--primary-color) !important;
    transform: translateY(-3px);
}

/* Footer */
footer {
    padding: 4rem 1.5rem;
    text-align: center;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--text-muted);
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
}