@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&display=swap');

:root {
    --bg-dark: #071013; /* Deep navy almost black */
    --bg-card: rgba(14, 30, 42, 0.6); /* Glassy deep blue */
    --text-main: #E2E8F0;
    --text-muted: #94A3B8;
    
    --accent-blue: #0284C7;
    --accent-green: #10B981;
    --gradient-accent: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-green) 100%);
    
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(12px);
    
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    /* Soft ambient background glow */
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(2, 132, 199, 0.08), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(16, 185, 129, 0.08), transparent 25%);
    background-attachment: fixed;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 0.5em;
    color: #ffffff;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }

p {
    font-size: 1.125rem;
    color: var(--text-muted);
    margin-bottom: 1.5em;
}

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

/* Layout Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(7, 16, 19, 0.8);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-weight: 800;
    font-size: 1.5rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-links a {
    font-weight: 600;
    font-size: 1rem;
    position: relative;
    padding-bottom: 0.2rem;
}

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

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

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.125rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    border: none;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #fff;
    box-shadow: 0 10px 20px -10px var(--accent-blue);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -10px var(--accent-blue);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
}

.hero .gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Cards (Glassmorphism) */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: var(--glass-blur);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(16, 185, 129, 0.4);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.card-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    background: rgba(2, 132, 199, 0.2);
    color: var(--accent-green);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* Testimonials */
.testimonial-block {
    position: relative;
    padding: 3rem;
    background: var(--bg-card);
    border-radius: 24px;
    border-left: 4px solid var(--accent-green);
    margin-bottom: 2rem;
}

.testimonial-block p {
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-main);
    margin-bottom: 1rem;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-info h4 {
    margin-bottom: 0;
    font-size: 1.125rem;
}

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

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input,
.form-group textarea {
    padding: 1rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.1);
}

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

/* Mobile Responsive */
@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }
    
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(7, 16, 19, 0.98);
        padding: 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-150%);
        transition: transform 0.4s ease;
        z-index: -1;
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
}