/* Variables CSS pour les couleurs et dimensions */
:root {
–primary-color: #3498db;
–primary-dark: #2980b9;
–text-color: #333;
–light-bg: #f5f5f5;
–card-bg: #f8f9fa;
–border-color: #e9ecef;
–heading-color: #2c3e50;
–secondary-text: #666;
–tab-bg: #e9ecef;
–tab-text: #495057;
–card-shadow: 0 2px 5px rgba(0,0,0,0.05);
–hover-shadow: 0 5px 15px rgba(0,0,0,0.1);
–container-padding: 20px;
–card-padding: 20px;
–border-radius: 8px;
}

/* Reset et styles généraux */
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}

body {
font-family: ‘Segoe UI’, Tahoma, Geneva, Verdana, sans-serif;
background-color: var(–light-bg);
color: var(–text-color);
line-height: 1.6;
padding: 10px;
}

/* Container principal */
.container {
width: 100%;
max-width: 100%;
margin: 0 auto;
background-color: white;
padding: var(–container-padding);
border-radius: var(–border-radius);
box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

/* Navigation */
.navigation {
display: flex;
flex-direction: column;
gap: 10px;
margin-bottom: 20px;
}

.button {
display: inline-block;
padding: 10px 15px;
background-color: var(–primary-color);
color: white;
border-radius: 5px;
text-decoration: none;
font-weight: bold;
transition: background-color 0.3s;
text-align: center;
}

.button:hover {
background-color: var(–primary-dark);
}

/* Titres et textes */
h1 {
color: var(–heading-color);
text-align: center;
margin-bottom: 20px;
font-size: 1.8em;
}

.intro {
margin-bottom: 25px;
font-size: 1em;
}

.intro p {
margin-bottom: 10px;
}

/* Onglets de niveau */
.level-tabs {
display: flex;
flex-direction: column;
gap: 10px;
margin: 20px 0;
}

.level-tab {
padding: 8px 16px;
background-color: var(–tab-bg);
border-radius: 20px;
text-decoration: none;
color: var(–tab-text);
font-weight: 500;
transition: all 0.3s;
text-align: center;
}

.level-tab:hover, .level-tab.active {
background-color: var(–primary-color);
color: white;
}

/* Grille de ressources */
.resources-grid {
display: grid;
grid-template-columns: 1fr;
gap: 15px;
margin-top: 20px;
}

/* Cartes de ressources */
.resource-card {
background-color: var(–card-bg);
border-radius: var(–border-radius);
padding: var(–card-padding);
text-align: center;
transition: all 0.3s ease;
box-shadow: var(–card-shadow);
text-decoration: none;
color: var(–text-color);
border: 2px solid var(–border-color);
display: flex;
flex-direction: column;
justify-content: center;
min-height: 180px;
}

.resource-card:hover {
transform: translateY(-3px);
box-shadow: var(–hover-shadow);
border-color: var(–primary-color);
}

.resource-card h3 {
margin-top: 0;
color: var(–primary-color);
font-size: 1.2em;
}

.resource-card p {
margin: 8px 0;
font-size: 0.95em;
color: var(–secondary-text);
}

.examples {
margin-top: 10px;
font-style: italic;
color: var(–heading-color);
font-size: 0.9em;
}

.icon {
font-size: 1.8em;
margin-bottom: 10px;
color: var(–primary-color);
}

/* Pied de page */
footer {
margin-top: 30px;
text-align: center;
font-size: 0.85em;
color: var(–secondary-text);
padding-top: 15px;
border-top: 1px solid var(–border-color);
}

footer p {
margin-bottom: 10px;
}

/* Media Queries pour la responsivité */
/* Tablettes */
@media screen and (min-width: 600px) {
.resources-grid {
grid-template-columns: repeat(2, 1fr);
gap: 20px;
}

h1 {
font-size: 2em;
}

.container {
padding: 25px;
}

.intro {
font-size: 1.05em;
}

.navigation {
flex-direction: row;
justify-content: space-between;
}

.level-tabs {
flex-direction: row;
justify-content: center;
}
}

/* Desktops et grands écrans */
@media screen and (min-width: 900px) {
.resources-grid {
grid-template-columns: repeat(3, 1fr);
gap: 25px;
}

h1 {
font-size: 2.2em;
margin-bottom: 30px;
}

.container {
padding: 30px;
}

.intro {
font-size: 1.1em;
}

.resource-card {
padding: 25px;
}

.resource-card h3 {
font-size: 1.4em;
}

.icon {
font-size: 2.2em;
}

body {
padding: 20px;
}
}

/* Très grands écrans */
@media screen and (min-width: 1200px) {
.resources-grid {
grid-template-columns: repeat(4, 1fr);
}
}

/* Écrans très petits */
@media screen and (max-width: 350px) {
.container {
padding: 15px;
}

.resource-card {
padding: 15px;
}

h1 {
font-size: 1.5em;
}
}