/* === RESET GLOBAL === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    color-scheme: only dark;
    background-color: #0f1116;
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", Roboto, sans-serif;
    background: radial-gradient(circle at top, #141621 0%, #0d0e11 100%);
    color: #eaeaea;
    line-height: 1.6;
    overflow-x: hidden;
    padding: 0 1em;
}

/* === EN-TÊTE === */
header {
    background: linear-gradient(135deg, #1f2937, #111827);
    text-align: center;
    color: white;
    padding: 2.5em 1em;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
    border-radius: 0 0 12px 12px;
}

header h1 {
    font-size: 1.9em;
    margin-bottom: 0.3em;
    letter-spacing: 0.5px;
}

header p {
    color: #9ca3af;
    font-size: 1em;
}

/* === STRUCTURE PRINCIPALE === */
main {
    width: 100%;
    max-width: 1000px;
    margin: 2em auto 4em auto;
    display: flex;
    flex-direction: column;
    gap: 2em;
}

/* === CARTES (UTILISÉES POUR TOUT : INDEX ET RAPPORTS) === */
.card {
    background: #1a1c22;
    border-radius: 12px;
    padding: 1.8em;
    box-shadow: 0 0 12px rgba(0, 0, 0, 0.35);
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    transition: transform 0.25s ease, background-color 0.25s ease;
}

.card:hover {
    transform: translateY(-5px);
    background-color: #23252c;
}

.card h2, .card h3 {
    color: #00bfff;
    margin-bottom: 0.7em;
}

.card h2 {
    font-size: 1.3em;
}

.card h3 {
    font-size: 1.1em;
}

.card p, .card li {
    color: #d1d5db;
    text-align: justify;
    text-justify: inter-word;
    margin-bottom: 0.8em;
}

.card ul {
    margin-left: 1.5em;
}

/* === BLOCS DE CODE === */
pre {
    background-color: #0f1116;
    padding: 1em;
    border-radius: 8px;
    overflow-x: auto;
    font-family: "Courier New", monospace;
    color: #9dd8ff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    margin: 1em 0;
    font-size: 0.9em;
    word-wrap: break-word;
    white-space: pre-wrap;
}

code {
    background-color: #1c1e24;
    padding: 2px 5px;
    border-radius: 4px;
    color: #86e1ff;
    font-family: monospace;
}

/* === LIEN RETOUR === */
.back {
    text-align: center;
    margin-top: 2em;
}

.back a {
    display: inline-block;
    color: #00bfff;
    text-decoration: none;
    font-weight: bold;
}

.back a:hover {
    text-decoration: underline;
    color: #66e8ff;
}

/* === PIED DE PAGE === */
footer {
    text-align: center;
    padding: 1.5em;
    background-color: #0a0a0a;
    color: #aaa;
    font-size: 0.9em;
    border-top: 1px solid #1f1f1f;
    border-radius: 12px 12px 0 0;
    margin-top: 2em;
}

/* === RESPONSIVE === */
@media (min-width: 768px) {
    header h1 {
        font-size: 2.3em;
    }

    main {
        gap: 3em;
    }

    .card {
        padding: 2.5em;
    }

    pre {
        font-size: 1em;
    }
}