:root {
    --primary: #ff9900;
    --primary-dark: #e68a00;
    --dark: #2c3e50;
    --light: #f8f9fa;
    --text: #333;
    --gray: #666;
    --radius: 8px;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: "Segoe UI", system-ui, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: #fff;
}
img {
    max-width: 100%;
    height: auto;
}
a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}
ol {
    margin: 0;
    padding-left: 0;
    list-style-position: inside;
}


/* Navbar */
.navbar {
    background: #fff;
    border-bottom: 1px solid #eee;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.brand {
    font-weight: bold;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 20px;
}
.nav-links a:hover {
    color: var(--primary);
}
.nav-btn {
    background: var(--dark);
    color: #fff;
    padding: 8px 16px;
    border-radius: var(--radius);
}
.nav-btn:hover {
    background: #000;
    color: #fff;
}

/* Language Dropdown */
.lang-switch {
    position: relative;
    cursor: pointer;
    font-weight: bold;
}
.lang-dropdown {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    right: 0;
    background: #fff;
    border: 1px solid #ddd;
    padding: 10px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    width: 150px;
}
.lang-switch:hover .lang-dropdown {
    display: flex;
}

/* Hero */
.hero {
    padding: 4rem 0;
    text-align: center;
    background: radial-gradient(circle at center, #fffbf0 0%, #fff 100%);
}
.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--dark);
}
.hero-text {
    font-size: 1.2rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto 2rem;
}
.hero-image {
    border-radius: 12px;
    margin-top: 3rem;
    border: 1px solid #eee;
}
.shadow {
    box-shadow: var(--shadow);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: bold;
    text-align: center;
}
.primary-btn {
    background: var(--primary);
    color: #fff;
}
.primary-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}
.secondary-btn {
    background: #eee;
    color: var(--dark);
}
.secondary-btn:hover {
    background: #ddd;
}

/* Sections */
.section {
    padding: 4rem 0;
}
.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
    color: var(--dark);
}
.bg-light {
    background: var(--light);
}

/* Grid Features */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.card {
    padding: 2rem;
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid #eee;
    transition: 0.3s;
}
.card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}
.card h3 {
    margin-bottom: 1rem;
    color: var(--dark);
}

/* Download Buttons */
.double-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1rem;
    margin-bottom: 1rem;
}
.big-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 200px;
}
.win-btn {
    background: #0078d6;
    color: white;
} /* Windows Blue */
.win-btn:hover {
    background: #005a9e;
}
.lin-btn {
    background: #333;
    color: white;
}
.lin-btn:hover {
    background: #000;
}

/* Footer & Donate */
.donate-section {
    text-align: center;
    background: #fff3cd;
    border-radius: var(--radius);
    margin: 2rem auto;
    max-width: 800px;
}
.donate-btn {
    display: inline-block;
    margin-top: 1rem;
    background: #ffc439;
    color: #000;
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: bold;
}
footer {
    background: var(--dark);
    color: #ccc;
    padding: 2rem 0;
    text-align: center;
    font-size: 0.9rem;
}
footer a {
    color: #fff;
}

/* Mobile */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    .nav-links {
        display: none;
    } /* Pour faire simple sans JS complexe */

    .double-buttons {
        flex-direction: column;
    }
    .double-buttons a {
        width: 100%;
    }
}