/* =========================
   VARIABLES GLOBALES
   ========================= */
:root {
    --primary: #007bff;
    --primary-dark: #0056b3;
    --secondary: #28a745;
    --secondary-dark: #218838;
    --bg-light: #f4f6f8;
    --bg-card: #ffffff;
    --text-main: #333;
    --text-light: #ffffff;
    --radius: 10px;
    --shadow-soft: 0 4px 15px rgba(0, 0, 0, 0.08);
    --transition: 0.3s ease;
}

/* =========================
   RESET & BASE
   ========================= */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
}

img {
    max-width: 100%;
    display: block;
    border-radius: var(--radius);
}

/* =========================
   HEADER
   ========================= */
header {
    position: relative;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--text-light);
    padding: 2rem 1rem;
    text-align: center;
    box-shadow: var(--shadow-soft);
}

header h1 {
    margin: 0;
    font-size: 2rem;
}

.logo {
    position: absolute;
    top: 15px;
    left: 15px;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    background: white;
    padding: 5px;
}

/* =========================
   NAVIGATION
   ========================= */
nav {
    background-color: var(--primary-dark);
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0.5rem;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
}

nav a {
    color: var(--text-light);
    text-decoration: none;
    padding: 0.5rem 1.2rem;
    border-radius: 30px;
    font-weight: 600;
    transition: background-color var(--transition), color var(--transition);
}

nav a:hover,
nav a:focus {
    background-color: var(--text-light);
    color: var(--primary);
}

/* =========================
   SECTIONS / CARTES
   ========================= */
section {
    max-width: 900px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow-soft);
}

h1, h2, h3 {
    color: var(--primary);
    margin-top: 0;
}

/* =========================
   PROGRAMMES
   ========================= */
.programa-item {
    padding: 1rem;
    border-left: 4px solid var(--primary);
    background: #f9fbfd;
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

/* =========================
   FORMULAIRES
   ========================= */
form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

label {
    font-weight: 600;
}

input,
textarea {
    padding: 0.7rem;
    border-radius: var(--radius);
    border: 1px solid #ccc;
    font-size: 1rem;
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.15);
}

input[type="submit"] {
    background: var(--secondary);
    color: var(--text-light);
    border: none;
    padding: 0.8rem;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color var(--transition), transform var(--transition);
}

input[type="submit"]:hover {
    background: var(--secondary-dark);
    transform: translateY(-2px);
}

/* =========================
   GRAPHIQUES
   ========================= */
#graficos {
    max-width: 1000px;
}

.grafico {
    margin-bottom: 2rem;
}

.barra-container {
    background-color: #e9ecef;
    border-radius: 30px;
    height: 30px;
    overflow: hidden;
}

.barra {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary), var(--primary));
    color: white;
    text-align: center;
    line-height: 30px;
    font-weight: bold;
    transition: width 1s ease;
}

/* =========================
   PAYS
   ========================= */
.paises {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.pais {
    background-color: #f8f9fa;
    padding: 1.5rem;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition);
}

.pais:hover {
    transform: translateY(-5px);
}

/* =========================
   FOOTER
   ========================= */
footer {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--primary);
    color: var(--text-light);
    margin-top: 3rem;
}

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 600px) {
    header h1 {
        font-size: 1.5rem;
    }

    section {
        margin: 1rem;
        padding: 1.5rem;
    }
}