/* ==================== */
/* CSS Variables */
/* ==================== */
:root {
    /* Colors - More professional, less gaming */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #7c3aed;
    --accent-color: #06b6d4;
    
    /* Neutral colors */
    --bg-dark: #0f172a;
    --bg-medium: #1e293b;
    --bg-light: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    
    /* Other */
    --border-radius: 0.5rem;
    --transition: all 0.3s ease;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.5rem; }

p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
}

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

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

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ==================== */
/* Loader */
/* ==================== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s, visibility 0.5s;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--bg-light);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    margin: 0 auto var(--spacing-sm);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loader-text {
    color: var(--text-secondary);
}

/* ==================== */
/* Header */
/* ==================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1rem 0;
    z-index: 1000;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    background: rgba(15, 23, 42, 0.8);
}

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

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    color: var(--text-primary);
    font-weight: 500;
    position: relative;
    padding-bottom: 0.25rem;
}

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

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

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

.hero-gradient {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(37, 99, 235, 0.1) 0%, transparent 50%);
}

.hero h1 {
    margin-bottom: var(--spacing-md);
    font-weight: 800;
}

.hero-subtitle {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-md);
    color: var(--text-secondary);
}

.hero-dynamic {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
}

.auto-type {
    color: var(--primary-color);
    font-weight: 600;
}

/* ==================== */
/* Features Section */
/* ==================== */
.features {
    padding: var(--spacing-xl) 0;
    background: var(--bg-medium);
}

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

.feature-card {
    background: var(--bg-dark);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: var(--transition);
    border: 1px solid var(--bg-light);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-medium);
    color: var(--primary-color);
    font-size: 1.5rem;
}

.feature-title {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

/* ==================== */
/* Tech Stack Section */
/* ==================== */
.tech-stack {
    padding: var(--spacing-xl) 0;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.tech-item {
    text-align: center;
    transition: var(--transition);
}

.tech-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-medium);
    font-size: 2rem;
    color: var(--text-muted);
    transition: var(--transition);
}

.tech-item:hover .tech-icon {
    transform: translateY(-5px);
    color: var(--primary-color);
    background: var(--bg-light);
}

.tech-name {
    font-weight: 500;
    color: var(--text-secondary);
}

/* ==================== */
/* Testimonials Section */
/* ==================== */
.testimonials {
    padding: var(--spacing-xl) 0;
    background: var(--bg-medium);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background: var(--bg-dark);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    transition: var(--transition);
    border: 1px solid var(--bg-light);
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.testimonial-content {
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-medium);
    color: var(--primary-color);
    font-size: 1.5rem;
}

.author-name {
    font-weight: 600;
    color: var(--text-primary);
}

.author-position {
    font-size: 0.875rem;
    color: var(--text-muted);
}

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

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: grid;
    gap: var(--spacing-md);
}

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-medium);
    border: 1px solid var(--bg-light);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-group label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    pointer-events: none;
    transition: var(--transition);
    color: var(--text-muted);
}

.form-group input:focus ~ label,
.form-group textarea:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:not(:placeholder-shown) ~ label {
    top: -0.5rem;
    left: 0.5rem;
    font-size: 0.875rem;
    color: var(--primary-color);
    background-color: var(--bg-dark);
    padding: 0 0.5rem;
}

/* ==================== */
/* Social Links */
/* ==================== */
.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-medium);
    color: var(--text-secondary);
    transition: var(--transition);
}

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

/* ==================== */
/* Footer */
/* ==================== */
footer {
    padding: var(--spacing-md) 0;
    text-align: center;
    background: var(--bg-medium);
    border-top: 1px solid var(--bg-light);
}

.footer-text {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ==================== */
/* Mobile Menu */
/* ==================== */
@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 300px;
        height: calc(100vh - 70px);
        background: var(--bg-medium);
        flex-direction: column;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        transition: right 0.3s ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.3);
    }
    
    .nav-links.mobile-active {
        right: 0;
    }
    
    .nav-links a {
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--bg-light);
    }
}

/* ==================== */
/* Notifications */
/* ==================== */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    background: var(--bg-medium);
    color: var(--text-primary);
    box-shadow: var(--shadow-lg);
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 1000;
    max-width: 350px;
}

.notification.show {
    transform: translateX(0);
}

.notification-success {
    border-left: 4px solid #10b981;
}

.notification-error {
    border-left: 4px solid #ef4444;
}

/* ==================== */
/* Fade In Animation */
/* ==================== */
.feature-card,
.testimonial-card,
.tech-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== */
/* Responsive Design */
/* ==================== */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.25rem; }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .features-grid,
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }
}

@media (max-width: 480px) {
    h1 { font-size: 2rem; }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}