@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-Regular.ttf');
    src: url('../fonts/open-sans/static/OpenSans-Regular.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-Regular.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-Regular.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-Regular.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-Regular.svg#OpenSans-Regular') format('svg');
    font-weight: normal;
    font-style: normal;
    font-display: fallback;
}

@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-ExtraBold.eot');
    src: url('../fonts/open-sans/static/OpenSans-ExtraBold.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-ExtraBold.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-ExtraBold.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-ExtraBold.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-ExtraBold.svg#OpenSans-ExtraBold') format('svg');
    font-weight: bold;
    font-style: normal;
    font-display: fallback;
}

@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-SemiBoldItalic.eot');
    src: url('../fonts/open-sans/static/OpenSans-SemiBoldItalic.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-SemiBoldItalic.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-SemiBoldItalic.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-SemiBoldItalic.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-SemiBoldItalic.svg#OpenSans-SemiBoldItalic') format('svg');
    font-weight: 600;
    font-style: italic;
    font-display: fallback;
}

@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-Light.eot');
    src: url('../fonts/open-sans/static/OpenSans-Light.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-Light.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-Light.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-Light.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-Light.svg#OpenSans-Light') format('svg');
    font-weight: 300;
    font-style: normal;
    font-display: fallback;
}

@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-LightItalic.eot');
    src: url('../fonts/open-sans/static/OpenSans-LightItalic.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-LightItalic.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-LightItalic.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-LightItalic.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-LightItalic.svg#OpenSans-LightItalic') format('svg');
    font-weight: 300;
    font-style: italic;
    font-display: fallback;
}

@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-ExtraBoldItalic.eot');
    src: url('../fonts/open-sans/static/OpenSans-ExtraBoldItalic.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-ExtraBoldItalic.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-ExtraBoldItalic.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-ExtraBoldItalic.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-ExtraBoldItalic.svg#OpenSans-ExtraBoldItalic') format('svg');
    font-weight: bold;
    font-style: italic;
    font-display: fallback;
}

@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-Italic.eot');
    src: url('../fonts/open-sans/static/OpenSans-Italic.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-Italic.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-Italic.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-Italic.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-Italic.svg#OpenSans-Italic') format('svg');
    font-weight: normal;
    font-style: italic;
    font-display: fallback;
}

@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-SemiBold.eot');
    src: url('../fonts/open-sans/static/OpenSans-SemiBold.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-SemiBold.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-SemiBold.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-SemiBold.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-SemiBold.svg#OpenSans-SemiBold') format('svg');
    font-weight: 600;
    font-style: normal;
    font-display: fallback;
}

@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-Bold.eot');
    src: url('../fonts/open-sans/static/OpenSans-Bold.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-Bold.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-Bold.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-Bold.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-Bold.svg#OpenSans-Bold') format('svg');
    font-weight: bold;
    font-style: normal;
    font-display: fallback;
}

@font-face {
    font-family: 'Open Sans';
    src: url('../fonts/open-sans/static/OpenSans-BoldItalic.eot');
    src: url('../fonts/open-sans/static/OpenSans-BoldItalic.eot?#iefix') format('embedded-opentype'),
         url('../fonts/open-sans/static/OpenSans-BoldItalic.woff2') format('woff2'),
         url('../fonts/open-sans/static/OpenSans-BoldItalic.woff') format('woff'),
         url('../fonts/open-sans/static/OpenSans-BoldItalic.ttf') format('truetype'),
         url('../fonts/open-sans/static/OpenSans-BoldItalic.svg#OpenSans-BoldItalic') format('svg');
    font-weight: bold;
    font-style: italic;
    font-display: fallback;
}

/* Couleur principale: Bleu (#0056b3), Orange (#FF8C42) */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Open Sans', sans-serif;
}

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.8;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8f0f7 100%);
    min-height: 100vh;
    padding-top: 70px;
}

/* Menu sticky en haut */
.sticky-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(90deg, #0056b3 0%, #004085 100%);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    padding: 0 20px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    color: white;
    font-size: 1.5em;
    font-weight: bold;
    text-decoration: none;
    transition: color 0.3s;
}

.nav-logo:hover {
    color: #FF8C42;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-links a:hover {
    color: #FF8C42;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #FF8C42;
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header avec logo et titre côte à côte */
header {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
    border-top: 5px solid #FF8C42;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.logo-container {
    flex-shrink: 0;
}

.logo-container img {
    width: 150px;
    height: auto;
    display: block;
}

.header-title {
    flex: 1;
}

.header-title h1 {
    color: #0056b3;
    font-size: 2.8em;
    margin: 0;
    line-height: 1.2;
}

.subtitle {
    color: #FF8C42;
    font-size: 1.1em;
    margin-top: 10px;
    font-weight: 500;
}

.content-section {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    border-left: 5px solid #FF8C42;
    transition: transform 0.3s, box-shadow 0.3s;
    margin-bottom: 25px;
}

.content-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.full-width {
    grid-column: 1 / -1;
}

h1 {
    color: #0056b3;
    font-size: 2.5em;
    margin-bottom: 30px;
    text-align: center;
}

h2 {
    color: #0056b3;
    font-size: 1.8em;
    margin-bottom: 20px;
    border-bottom: 3px solid #FF8C42;
    padding-bottom: 10px;
}

h3 {
    color: #0056b3;
    font-size: 1.4em;
    margin-top: 25px;
    margin-bottom: 15px;
}

p {
    margin-bottom: 20px;
    text-align: justify;
    color: #555;
    line-height: 1.8;
}

ul {
    list-style: none;
    padding-left: 0;
}

ul li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
}

ul li:before {
    content: "▶";
    color: #FF8C42;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.form-container {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    border-left: 5px solid #FF8C42;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    color: #0056b3;
    font-weight: 600;
    margin-bottom: 8px;
}

input,
textarea,
select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: #FF8C42;
    box-shadow: 0 0 0 3px rgba(255, 140, 66, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

button {
    background: linear-gradient(135deg, #FF8C42 0%, #FF6B1A 100%);
    color: white;
    padding: 15px 40px;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    width: 100%;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 140, 66, 0.3);
}

.classes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    grid-auto-rows: 1fr;
    gap: 15px;
    margin: 20px 0;
}

.class-item {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8f0f7 100%);
    padding: 15px;
    border-radius: 10px;
    border-left: 4px solid #FF8C42;
    border-bottom: 2px solid #0056b3;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 300px;
}

.class-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 86, 179, 0.1);
}

.class-number {
    color: #0056b3;
    font-weight: bold;
    font-size: 1.1em;
}

.missions-list {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8f0f7 100%);
    padding: 25px;
    border-radius: 10px;
    margin: 20px 0;
    border-left: 4px solid #FF8C42;
}

.missions-list li {
    padding: 15px 0 15px 30px;
    border-bottom: 1px solid #e0e0e0;
    color: #555;
}

.missions-list li:last-child {
    border-bottom: none;
}

.missions-list li:before {
    content: "✓";
    color: #FF8C42;
    font-weight: bold;
    font-size: 1.3em;
}

.symbol-adr {
    width: 120px;
    height: auto;
    margin: 12px auto 0;
    margin-top: auto;
    display: block;
}

@media (max-width: 768px) {
    .sticky-menu {
        padding: 0 10px;
    }

    .nav-container {
        flex-wrap: wrap;
        height: auto;
        padding: 10px 0;
    }

    .nav-links {
        gap: 15px;
        font-size: 0.9em;
    }

    body {
        padding-top: 100px;
    }

    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    .header-title {
        flex: 1;
    }

    .header-title h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.5em;
    }

    .content-section,
    .form-container {
        padding: 25px;
    }

    .classes-grid {
        grid-template-columns: 1fr;
    }

    .content-wrapper {
        grid-template-columns: 1fr;
    }
}

footer {
    text-align: center;
    padding: 20px;
    color: #0056b3;
    margin-top: 40px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* Scroll smooth */
html {
    scroll-behavior: smooth;
}