:root {
    --color-background: #121212;
    --color-card: #1a1a1a;
    --color-border: #333333;
    --color-text-primary: #f0f0f0;
    --color-text-secondary: #aaaaaa;
    --color-accent: #007bff;
    --color-accent-hover: #0056b3;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: 1.6;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

h1, h2, h3 {
    text-transform: uppercase;
    color: #ffffff;
    margin-bottom: 1rem;
}

header {
    background-color: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    text-transform: uppercase;
}

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

nav ul li {
    margin-left: 2rem;
}

nav ul li a {
    color: var(--color-text-primary);
    font-weight: bold;
    font-size: 0.9rem;
    text-transform: uppercase;
}

nav ul li a:hover {
    color: var(--color-accent);
}

.hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: 40vh;
    padding: 4rem 1rem;
}

.hero h1 {
    font-size: 3rem;
}

.hero p {
    font-size: 1.2rem;
    color: var(--color-text-secondary);
}

.projects-section {
    width: 90%;
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem 0;
}

.projects-section h2 {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.1);
}

.project-card .img-container {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1; /* carré parfait */
    background-color: #2a2a2a;
    border-bottom: 1px solid var(--color-border);
    border-radius: 8px 8px 0 0;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;      /* coupe sur les côtés si nécessaire */
    object-position: center; /* centre l’image */
    transition: transform 0.3s ease;
}

.project-card:hover img {
    transform: scale(1.05);
}

.card-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-content h3 {
    font-size: 1.5rem;
}

.card-content p {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.btn {
    display: inline-block;
    background-color: var(--color-accent);
    color: #ffffff;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    text-transform: uppercase;
    font-weight: bold;
    text-align: center;
    transition: background-color 0.3s ease;
}

.btn:hover {
    background-color: var(--color-accent-hover);
    color: #ffffff;
}

footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
    background-color: var(--color-card);
    border-top: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}