:root {
    --page-bg: #EAECF0;
    --content-bg: #FFFFFF;
    --ink: #202122;
    --ink-soft: #54595D;
    --border: #A2A9B1;
    --border-soft: #C8CCD1;
    --link: #0645AD;
    --link-visited: #795CB2;
    --box-header-bg: #EAF3FF;
    --welcome-bg: linear-gradient(180deg, #F8FAFD 0%, #EAF1FA 100%);
    --radius: 2px;
    --serif: Georgia, "Times New Roman", Times, serif;
    --sans: Arial, Helvetica, "Helvetica Neue", sans-serif;
}

/* Pas de bascule automatique sur le thème système : comme le vrai Wikipédia,
   LSPEDIA reste clair par défaut. Le mode sombre ne s'active que via un
   futur bouton "Apparence" (data-theme="dark" posé sur <html>). */
:root[data-theme="dark"] {
    --page-bg: #0F1113; --content-bg: #1B1E21; --ink: #E4E6E9; --ink-soft: #A2A9B1;
    --border: #3B3F42; --border-soft: #2B2F32; --link: #8AB4F8; --link-visited: #C3A6E8;
    --box-header-bg: #1D2B39; --welcome-bg: linear-gradient(180deg, #191D21 0%, #16202A 100%);
}
:root[data-theme="light"] {
    --page-bg: #EAECF0; --content-bg: #FFFFFF; --ink: #202122; --ink-soft: #54595D;
    --border: #A2A9B1; --border-soft: #C8CCD1; --link: #0645AD; --link-visited: #795CB2;
    --box-header-bg: #EAF3FF; --welcome-bg: linear-gradient(180deg, #F8FAFD 0%, #EAF1FA 100%);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
}

body {
    background: var(--page-bg);
    color: var(--ink);
    font-family: var(--sans);
    font-size: 14px;
    line-height: 1.65;
}

a {
    color: var(--link);
    text-decoration: none;
}

a:visited {
    color: var(--link-visited);
}

a:hover {
    text-decoration: underline;
}

a:focus-visible,
input:focus-visible,
button:focus-visible {
    outline: 2px solid var(--link);
    outline-offset: 2px;
}

/* ---------- Header ---------- */

.site-header {
    background: var(--content-bg);
    border-bottom: 1px solid var(--border-soft);
}

.site-header__inner {
    max-width: 1300px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
}

.brand:hover {
    text-decoration: none;
}

.brand__logo {
    display: block;
    height: 42px;
    width: auto;
}

:root[data-theme="dark"] .brand__logo {
    background: #fff;
    padding: 6px 10px;
    border-radius: 4px;
}

.search {
    flex: 1 1 260px;
    max-width: 480px;
}

.search input {
    width: 100%;
    padding: 7px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--content-bg);
    color: var(--ink);
    font-size: 13.5px;
}

.account-nav {
    display: flex;
    gap: 18px;
    align-items: center;
    font-size: 13px;
    margin-left: auto;
}

.account-nav__primary {
    color: var(--ink);
    font-weight: 700;
}

.account-nav__user {
    color: var(--ink);
    font-weight: 700;
}

.account-nav__logout {
    display: inline;
    margin: 0;
}

.link-button {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    font: inherit;
    color: var(--link);
    cursor: pointer;
}

.link-button:hover {
    text-decoration: underline;
}

.link-button--danger {
    color: #B5453D;
}

.article-delete-form {
    display: inline;
}

.article-meta .article-delete-form {
    font-size: inherit;
}

.site-nav {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    gap: 20px;
    font-size: 13px;
}

.site-nav a {
    color: var(--ink-soft);
    padding: 9px 2px;
    border-bottom: 2px solid transparent;
}

.site-nav a:hover {
    color: var(--link);
    text-decoration: none;
}

.site-nav a.is-active {
    color: var(--ink);
    border-bottom-color: var(--link);
}

.site-nav__create {
    margin-left: auto;
    align-self: center;
    background: var(--link);
    color: #fff !important;
    padding: 5px 12px !important;
    border-radius: 12px;
    border-bottom: none !important;
    font-weight: 700;
}

.site-nav__create:hover {
    opacity: 0.9;
    text-decoration: none !important;
}

/* ---------- Content shell ---------- */

.content-shell {
    max-width: 1300px;
    margin: 0 auto;
    background: var(--content-bg);
    min-height: calc(100vh - 96px);
}

.page {
    padding: 26px 32px 12px;
}

/* ---------- Typography ---------- */

.hero h1 {
    font-family: var(--serif);
    font-weight: normal;
    font-size: 28px;
    color: var(--ink);
    margin: 0;
}

/* ---------- Forms (auth) ---------- */

.form-errors {
    background: #FDEEEE;
    border: 1px solid #D9534F;
    border-radius: var(--radius);
    padding: 12px 16px;
    margin: 16px 0;
    color: #7A1F1A;
}

.form-errors ul {
    margin: 0;
    padding-left: 18px;
}

:root[data-theme="dark"] .form-errors {
    background: #3A1F1F;
    color: #F3B4B0;
    border-color: #8A3B36;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-width: 360px;
    margin: 20px 0;
}

.auth-form label {
    font-size: 13px;
    font-weight: 700;
    margin-top: 10px;
}

.auth-form input {
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--content-bg);
    color: var(--ink);
    font-size: 14px;
}

.auth-form button {
    margin-top: 16px;
    padding: 9px 18px;
    border: 1px solid var(--link);
    border-radius: var(--radius);
    background: var(--link);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    align-self: flex-start;
}

.auth-form button:hover {
    opacity: 0.9;
}

.auth-alt {
    font-size: 13.5px;
    color: var(--ink-soft);
}

/* ---------- Article page ---------- */

.article-header h1 {
    font-family: var(--serif);
    font-weight: normal;
    font-size: 30px;
    margin: 0 0 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.article-meta {
    color: var(--ink-soft);
    font-size: 12.5px;
    margin: 0 0 10px;
}

.category-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 20px;
}

.category-chip {
    font-size: 11.5px;
    padding: 3px 9px;
    border: 1px solid var(--border-soft);
    border-radius: 12px;
    color: var(--ink-soft);
    background: var(--box-header-bg);
}

.category-chip:hover {
    text-decoration: none;
    color: var(--link);
}

.article-content {
    max-width: 75ch;
}

.article-content h2 {
    font-family: var(--serif);
    font-weight: normal;
    font-size: 22px;
    margin: 28px 0 10px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border-soft);
}

.article-content h3 {
    font-family: var(--serif);
    font-weight: normal;
    font-size: 18px;
    margin: 22px 0 8px;
}

.article-content p {
    margin: 0 0 14px;
}

.article-content ul,
.article-content ol {
    margin: 0 0 14px;
    padding-left: 26px;
}

.article-content li {
    margin-bottom: 4px;
}

.article-content blockquote {
    margin: 0 0 14px;
    padding: 4px 16px;
    border-left: 3px solid var(--border);
    color: var(--ink-soft);
}

.article-content pre {
    background: var(--page-bg);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
    padding: 12px 14px;
    overflow-x: auto;
    font-size: 13px;
}

.article-content code {
    font-family: ui-monospace, "SF Mono", Consolas, monospace;
    background: var(--page-bg);
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 0.9em;
}

.article-content pre code {
    background: none;
    padding: 0;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
}

/* ---------- Article form ---------- */

.article-form {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-width: 640px;
    margin: 20px 0 40px;
}

.article-form label {
    font-size: 13px;
    font-weight: 700;
    margin-top: 14px;
}

.article-form input[type="text"],
.article-form textarea {
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--content-bg);
    color: var(--ink);
    font-size: 14px;
    font-family: inherit;
}

.article-form textarea {
    font-family: ui-monospace, "SF Mono", Consolas, monospace;
    font-size: 13.5px;
    resize: vertical;
}

#editor-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    padding: 6px;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
    background: var(--page-bg);
}

#editor-toolbar button {
    margin-top: 0;
    padding: 5px 10px;
    font-size: 12.5px;
    font-weight: normal;
    border: 1px solid var(--border-soft);
    background: var(--content-bg);
    color: var(--ink-soft);
    border-radius: var(--radius);
    cursor: pointer;
}

#editor-toolbar button:hover {
    background: var(--box-header-bg);
    border-color: var(--link);
    color: var(--link);
}

#editor-toolbar #preview-toggle {
    margin-left: auto;
    font-weight: 700;
    color: var(--link);
    border-color: var(--link);
}

.editor-pane {
    margin-top: 6px;
}

#content-preview {
    min-height: 280px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
    background: var(--content-bg);
}

.category-picker {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
    padding: 12px 14px;
    margin-top: 14px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 8px;
}

.category-picker legend {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--ink-soft);
    padding: 0 4px;
}

.category-picker__item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13.5px;
    font-weight: normal;
    margin-top: 0;
}

.article-form button {
    margin-top: 18px;
    padding: 9px 18px;
    border: 1px solid var(--link);
    border-radius: var(--radius);
    background: var(--link);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    align-self: flex-start;
}

.article-form button:hover {
    opacity: 0.9;
}

/* ---------- Welcome box ---------- */

.welcome-box {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
    margin: 18px 0 28px;
    padding: 20px 24px;
    background: var(--welcome-bg);
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
}

.welcome-box__logo {
    flex: 0 0 auto;
    height: 76px;
    width: auto;
}

.welcome-box__intro {
    flex: 1 1 320px;
}

.welcome-box__intro p {
    margin: 0;
    color: var(--ink-soft);
    max-width: 60ch;
}

.welcome-box__links {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
    flex: 0 0 auto;
    padding-left: 24px;
    border-left: 1px solid var(--border-soft);
}

/* ---------- Home columns (articles à gauche, Présentation à droite) ---------- */

.home-columns {
    display: grid;
    grid-template-columns: 1fr minmax(240px, 300px);
    gap: 20px;
    align-items: start;
    margin: 18px 0 32px;
}

.home-columns__aside {
    position: sticky;
    top: 96px;
}

.home-columns__main {
    display: flex;
    flex-direction: column;
    gap: 20px;
    min-width: 0;
}

.panel--featured .article-thumb {
    width: 96px;
    height: 96px;
}

.panel--featured .article-list > li:first-child .article-thumb {
    width: 128px;
    height: 128px;
}

.article-thumb--placeholder {
    background: var(--page-bg);
    border-style: dashed;
}

@media (max-width: 900px) {
    .home-columns {
        grid-template-columns: 1fr;
    }

    .home-columns__aside {
        position: static;
    }
}

.panel {
    background: var(--content-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.panel h2 {
    margin: 0;
    padding: 12px 16px 8px;
    border-bottom: 2px solid var(--link);
    font-family: var(--serif);
    font-variant: small-caps;
    letter-spacing: 0.02em;
    font-weight: normal;
    font-size: 18px;
    color: var(--ink);
}

.panel .article-list,
.panel .empty-state,
.panel__body {
    padding: 14px 16px;
}

.panel__body p {
    margin: 0 0 12px;
    color: var(--ink-soft);
    font-size: 13.5px;
}

.presentation-stats {
    display: flex;
    gap: 24px;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border-soft);
}

.presentation-stats__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1 1 0;
    text-align: center;
}

.presentation-stats__number {
    font-size: 22px;
    font-weight: 700;
    color: var(--link);
    font-variant-numeric: tabular-nums;
}

.presentation-stats__label {
    font-size: 11.5px;
    color: var(--ink-soft);
}

.article-list {
    list-style: none;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.article-list li {
    display: flex;
    gap: 12px;
    border-top: 1px solid var(--border-soft);
    padding-top: 14px;
}

.article-list li:first-child {
    border-top: none;
    padding-top: 0;
}

.article-thumb {
    flex: 0 0 auto;
    width: 64px;
    height: 64px;
    object-fit: cover;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
}

.article-body {
    min-width: 0;
}

.article-list a {
    font-weight: 700;
}

.article-list p {
    margin: 4px 0 6px;
    color: var(--ink-soft);
    font-size: 13px;
}

.article-list .meta {
    font-size: 11.5px;
    color: var(--ink-soft);
}

.empty-state {
    margin: 0;
    color: var(--ink-soft);
    font-size: 13.5px;
    font-style: italic;
}

/* ---------- Footer ---------- */

.site-footer {
    border-top: 1px solid var(--border-soft);
    padding: 18px 32px 28px;
    color: var(--ink-soft);
    font-size: 12px;
}

.site-footer__revision {
    margin: 0 0 14px;
}

.site-footer__main {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.site-footer__text {
    flex: 1 1 auto;
    min-width: 0;
}

.site-footer__copyright {
    margin: 0 0 10px;
}

.site-footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 18px;
    margin-top: 12px;
}

.site-footer__links a {
    color: var(--link);
}

.site-footer__badges {
    flex: 0 0 auto;
    display: flex;
    gap: 10px;
}

.footer-badge {
    display: block;
    width: 96px;
    padding: 8px 10px;
    border: 1px solid var(--border-soft);
    border-radius: var(--radius);
    text-align: center;
    font-size: 11px;
    line-height: 1.4;
    color: var(--ink-soft);
}

@media (max-width: 720px) {
    .site-footer__main {
        flex-direction: column;
    }

    .site-footer__badges {
        order: -1;
    }
}

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
    .site-header__inner {
        padding: 12px 16px;
    }

    .account-nav {
        margin-left: 0;
        flex: 1 1 100%;
        justify-content: flex-end;
    }

    .site-nav {
        padding: 0 16px;
        overflow-x: auto;
    }

    .page {
        padding: 20px 18px 8px;
    }

    .welcome-box {
        padding: 16px 18px;
    }

    .welcome-box__links {
        border-left: none;
        padding-left: 0;
        border-top: 1px solid var(--border-soft);
        padding-top: 12px;
        width: 100%;
    }
}
