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

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

body {
    font-family: 'Segoe UI', sans-serif;
    line-height: 1.6;
    background: #f8fafc;
    color: #0f172a;
}

/* NAVBAR */
nav {
    background: #ffffff;
    position: sticky;
    top: 0;
    border-bottom: 1px solid #e2e8f0;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.9rem 1.5rem;
}

nav h2 {
    color: #3d3d3d;
}

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

nav a {
    text-decoration: none;
    color: #334155;
    font-weight: 500;
}

nav a:hover {
    color: #3d3d3d;
}

/* SECTIONS */
section {
    max-width: 900px;
    margin: auto;
    padding: 3rem 2rem;
}

h2 {
    margin-bottom: 1rem;
    color: #3d3d3d;
}

/* PROJECT GRID */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

/* CARDS */
.card {
    background: #ffffff;
    padding: 1.5rem;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.card h3 {
    margin-bottom: 0.5rem;
    color: #0f172a;
}

.card p {
    color: #475569;
    margin-bottom: 1rem;
}

.card-btn {
    text-decoration: none;
    color: #3d3d3d;
    font-weight: 600;
}

.card-btn:hover {
    text-decoration: underline;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 2rem;
    color: #64748b;
    border-top: 1px solid #e2e8f0;
    margin-top: 2rem;
}