:root {
    --primary: #0f172a; /* Dark Navy/Black for monochromatic feel */
    --primary-light: #334155;
    --secondary: #1e293b;
    --accent: #2563eb; /* Keep a hint of blue for subtle action hints if needed */
    --bg-white: #ffffff;
    --bg-gray: #f8fafc;
    --text-dark: #0f172a;
    --text-muted: #64748b;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 12px;
}

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

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

h1, h2, h3 {
    font-family: 'Outfit', sans-serif;
}

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

/* Navigation */
nav {
    padding: 1.5rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    text-decoration: none;
    color: var(--text-dark);
    font-family: 'Outfit';
}

/* Hero Section */
.hero {
    padding: 12rem 0 8rem;
    text-align: center;
    background: 
        radial-gradient(circle at 10% 20%, rgba(37, 99, 235, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(124, 58, 237, 0.03) 0%, transparent 40%);
    position: relative;
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-weight: 900;
    letter-spacing: -2px;
}

.hero p {
    font-size: 1.4rem;
    max-width: 800px;
    margin: 0 auto 3rem;
    color: var(--text-muted);
}

/* Sections */
section {
    padding: 8rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-title p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Grid & Cards */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.card {
    padding: 3rem;
    background: var(--bg-white);
    border-radius: var(--radius);
    border: 1px solid rgba(0, 0, 0, 0.03);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(37, 99, 235, 0.1);
}

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

.card i {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    display: block;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: var(--bg-gray);
    color: var(--text-dark);
    margin-left: 1rem;
}

.btn-secondary:hover {
    background: #e2e8f0;
}

.feature-list {
    list-style: none;
    margin-top: 1.5rem;
}

.feature-list li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.feature-list li::before {
    content: "●";
    color: var(--text-dark);
    font-size: 0.6rem;
    opacity: 0.5;
}

/* Form Styles */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
    background: #fff;
    padding: 3rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-family: inherit;
}

#form-response {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    display: none;
}

#form-response.success {
    display: block;
    background: #d1fae5;
    color: #065f46;
}

#form-response.error {
    display: block;
    background: #fee2e2;
    color: #991b1b;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    .btn-secondary { margin-left: 0; margin-top: 1rem; }
    .grid { grid-template-columns: 1fr; }
    section { padding: 4rem 0; }
}