/* =========================================================
   Charte graphique – Site RAG Philosophie
   Fichier CSS prêt à l'emploi
   Palette beige + contrastes doux
   Typo : DM Sans (titres) + Lato (texte)
   ========================================================= */

/* -------------------------
   1. Reset basique
   ------------------------- */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Lato', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #F8F4EE; /* beige clair */
    color: #2B2B2B;            /* gris anthracite */
    line-height: 1.6;
}

/* -------------------------
   2. Variables CSS
   ------------------------- */

:root {
    --color-bg-main: #F8F4EE;
    --color-bg-secondary: #EAE5E0;
    --color-text-main: #2B2B2B;
    --color-text-strong: #1F1F1F;
    --color-accent: #7D6E58;
    --color-accent-alt: #556B63;

    --max-content-width: 1100px;

    --font-title: 'DM Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Lato', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* -------------------------
   3. Conteneur principal
   ------------------------- */

.wrapper {
    max-width: var(--max-content-width);
    margin: 0 auto;
    padding: 1.5rem 1.5rem;
}

@media (min-width: 992px) {
    .wrapper {
        padding: 2.5rem 3rem;
    }
}

/* -------------------------
   4. Titres & textes
   ------------------------- */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-title);
    color: var(--color-text-strong);
    margin-bottom: 0.75rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
}

h3 {
    font-size: 1.5rem;
    font-weight: 500;
}

p {
    margin-bottom: 1.5rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-main);
}

strong {
    font-weight: 600;
}

/* Texte long (ex : article) */

.article-body {
    line-height: 1.65;
    font-size: 1rem;
}

/* Intro / chapeau */

.lead {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-accent-alt);
    margin-bottom: 2rem;
}

/* Légendes / annotations */

.caption {
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--color-accent);
    margin-top: 0.25rem;
}

/* -------------------------
   5. Liens
   ------------------------- */

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

a:hover,
a:focus {
    text-decoration: underline;
    text-decoration-thickness: 1px;
}

/* -------------------------
   6. Boutons
   ------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.6rem;
    border-radius: 8px;
    border: 1.5px solid var(--color-accent);
    background-color: transparent;
    color: var(--color-accent);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus {
    background-color: var(--color-accent);
    color: var(--color-bg-main);
}

/* Variante pleine */

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-bg-main);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--color-accent-alt);
    border-color: var(--color-accent-alt);
}

/* -------------------------
   7. Blocs & sections
   ------------------------- */

.section {
    padding: 3.5rem 0;
}

.section--alt {
    background-color: var(--color-bg-secondary);
}

/* Cartes / encadrés génériques */

.card {
    background-color: #FFFFFF0F;
    border-radius: 12px;
    padding: 1.75rem;
    border: 1px solid rgba(125, 110, 88, 0.25);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.03);
}

/* -------------------------
   8. Citations & encadrés
   ------------------------- */

blockquote {
    margin: 2.5rem 0;
    padding: 1.75rem 2rem;
    background-color: var(--color-bg-secondary);
    border-left: 3px solid var(--color-accent);
    font-style: italic;
    color: var(--color-accent-alt);
}

blockquote p {
    margin-bottom: 0;
}

.quote-box {
    margin: 2.5rem 0;
    padding: 1.75rem 2rem;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-accent);
    border-radius: 10px;
    font-style: italic;
    color: var(--color-accent-alt);
}

/* Citation auteur */

.quote-author {
    margin-top: 1rem;
    font-style: normal;
    font-size: 0.9rem;
    color: var(--color-accent);
    text-align: right;
}

/* -------------------------
   9. Layout pour pages RAG
   ------------------------- */

/* Layout type pour page de recherche / résultats */

.rag-layout {
    display: grid;
    gap: 2rem;
}

@media (min-width: 992px) {
    .rag-layout {
        grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
        align-items: flex-start;
    }
}

/* Colonne contenu principal */

.rag-main {
    background-color: #FFFFFF0A;
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid rgba(125, 110, 88, 0.2);
}

/* Colonne latérale : contexte, filtres, sources */

.rag-sidebar {
    background-color: var(--color-bg-secondary);
    border-radius: 12px;
    padding: 1.75rem;
    border: 1px solid rgba(125, 110, 88, 0.25);
}

/* -------------------------
   10. Éléments spécifiques RAG
   ------------------------- */

/* Zone question utilisateur */

.rag-query {
    margin-bottom: 1.5rem;
}

.rag-query-label {
    font-family: var(--font-title);
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-accent-alt);
    margin-bottom: 0.4rem;
}

.rag-query-input {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.08);
    background-color: #fff;
    font-family: var(--font-body);
    font-size: 0.95rem;
}

/* Résultats RAG */

.rag-result {
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.rag-result:last-child {
    border-bottom: none;
}

.rag-result-title {
    font-family: var(--font-title);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 0.5rem;
}

.rag-result-meta {
    font-size: 0.85rem;
    color: var(--color-accent);
    margin-bottom: 0.6rem;
}

.rag-result-snippet {
    font-size: 0.95rem;
    color: var(--color-text-main);
}

/* Badges (tags, sources, type de document, etc.) */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    border: 1px solid rgba(85, 107, 99, 0.4);
    font-size: 0.75rem;
    color: var(--color-accent-alt);
    margin-right: 0.4rem;
    margin-bottom: 0.3rem;
}

/* -------------------------
   11. Header & footer
   ------------------------- */

.site-header {
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    margin-bottom: 1.5rem;
}

.site-title {
    font-family: var(--font-title);
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-strong);
}

.site-subtitle {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-accent-alt);
    margin-top: 0.2rem;
}

.site-footer {
    margin-top: 4rem;
    padding: 2rem 0 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.04);
    font-size: 0.85rem;
    color: rgba(43, 43, 43, 0.7);
}

/* -------------------------
   12. Utilitaires
   ------------------------- */

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-muted  { color: rgba(43, 43, 43, 0.7); }