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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #1a1a1a;
    line-height: 1.6;
    background-color: #fcfcfc;
}

/* Navigation */
header {
    background-color: #111111;
    color: #ffffff;
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

nav a {
    color: #cccccc;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: #ffffff;
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(0,0,0,0.75), rgba(0,0,0,0.75)), url('https://images.unsplash.com/photo-1492691527719-9d1e07e534b4?auto=format&fit=crop&w=1350&q=80') center/cover no-repeat;
    height: 60vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #ffffff;
    padding: 0 1rem;
}

.hero h2 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: #dddddd;
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: #2563eb;
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
}

.btn:hover {
    background-color: #1d4ed8;
}

/* Content Sections */
.content-section {
    padding: 4rem 2rem;
    max-width: 1100px;
    margin: 0 auto;
    text-align: center;
}

.content-section h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.gray-bg {
    background-color: #f3f4f6;
    max-width: 100%;
}

/* Grid Layout */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1100px;
    margin: 2rem auto 0 auto;
}

.card {
    background-color: #ffffff;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #e5e7eb;
    text-align: left;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.card h3 {
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    background-color: #111111;
    color: #888888;
    text-align: center;
    padding: 2rem;
    font-size: 0.9rem;
}