* { box-sizing: border-box; }

/* ============================================================
   Theme variables
   ============================================================ */

:root {
    --bg-body: #f5f5f5;
    --bg-sidebar: #ffffff;
    --bg-card: #ffffff;
    --bg-input: #f8f8f8;
    --bg-input-hover: #e8e8e8;
    --bg-nav: #333333;
    --bg-th: #333333;
    --bg-row-hover: #f9f9f9;
    --bg-tag: #e8e8e8;
    --bg-graph: #e8e8ee;

    --text-primary: #333333;
    --text-secondary: #555555;
    --text-muted: #666666;
    --text-faint: #888888;
    --text-nav: #aaaaaa;
    --text-nav-active: #333333;
    --text-link: #2563eb;
    --text-label-graph: #444444;

    --border: #dddddd;
    --border-light: #eeeeee;

    --accent: #4a90d9;
    --accent-dark: #3a7bc8;

    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-strong: rgba(0, 0, 0, 0.15);

    --graph-link: #999999;
    --graph-link-highlight: #4a90d9;
    --graph-stroke-privateur: #888888;
}

[data-theme="dark"] {
    --bg-body: #1a1a2e;
    --bg-sidebar: #22223a;
    --bg-card: #2a2a44;
    --bg-input: #2a2a44;
    --bg-input-hover: #35355a;
    --bg-nav: #16162b;
    --bg-th: #16162b;
    --bg-row-hover: #2e2e4a;
    --bg-tag: #35355a;
    --bg-graph: #1a1a2e;

    --text-primary: #e0e0e0;
    --text-secondary: #bbbbbb;
    --text-muted: #999999;
    --text-faint: #777777;
    --text-nav: #777777;
    --text-nav-active: #e0e0e0;
    --text-link: #6eaaff;
    --text-label-graph: #cccccc;

    --border: #3a3a55;
    --border-light: #2e2e4a;

    --accent: #4a90d9;
    --accent-dark: #3a7bc8;

    --shadow: rgba(0, 0, 0, 0.3);
    --shadow-strong: rgba(0, 0, 0, 0.4);

    --graph-link: #555555;
    --graph-link-highlight: #4a90d9;
    --graph-stroke-privateur: #555555;
}

/* ============================================================
   Base
   ============================================================ */

body {
    font-family: system-ui, sans-serif;
    margin: 0;
    padding: 0;
    background: var(--bg-body);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
}

/* Navigation */
.nav-principale {
    display: flex;
    gap: 0;
    background: var(--bg-nav);
    padding: 0 20px;
    height: 40px;
    align-items: center;
}

.nav-lien {
    color: var(--text-nav);
    text-decoration: none;
    font-size: 13px;
    padding: 8px 16px;
    border-radius: 3px 3px 0 0;
    transition: 0.15s;
}

.nav-lien:hover { color: #fff; }

.nav-lien.actif {
    background: var(--bg-body);
    color: var(--text-nav-active);
    font-weight: 600;
}

.nav-spacer { flex: 1; }

.theme-toggle {
    background: none;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 3px;
    color: #ccc;
    cursor: pointer;
    font-size: 14px;
    padding: 4px 10px;
    transition: 0.15s;
    line-height: 1;
}

.theme-toggle:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
}

.container {
    display: flex;
    height: calc(100vh - 40px);
}

/* Left panel - Filters */
.sidebar {
    width: 280px;
    min-width: 280px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    padding: 20px;
    overflow-y: auto;
}

.sidebar h1 {
    font-size: 18px;
    margin: 0 0 20px 0;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-light);
}

.filtre-section {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-light);
}

.filtre-section:last-child {
    border-bottom: none;
}

.filtre-section h3 {
    margin: 0 0 10px 0;
    font-size: 14px;
    color: var(--text-primary);
}

.filtre-licence,
.filtre-plateformes {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.filtre-btn {
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    background-color: var(--bg-input);
    color: var(--text-primary);
    transition: 0.15s;
    font-size: 12px;
}

.filtre-btn:hover {
    background-color: var(--bg-input-hover);
}

.filtre-btn.actif {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent-dark);
}

.categorie { margin-bottom: 18px; }

.categorie h4 {
    margin: 0 0 8px 0;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.categorie-tags { display: flex; flex-wrap: wrap; gap: 5px; }

#listeTags button {
    margin: 0;
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 3px;
    cursor: pointer;
    background-color: var(--bg-input);
    color: var(--text-primary);
    transition: 0.15s;
    font-size: 12px;
}

#listeTags button:hover { background-color: var(--bg-input-hover); }

#listeTags button.actif {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent-dark);
}

/* Right panel - Software list */
.main {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.main-header h2 {
    margin: 0;
    font-size: 20px;
}

#compteurLogiciels { font-weight: normal; color: var(--text-muted); }

table {
    width: 100%;
    background: var(--bg-card);
    border-collapse: collapse;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px var(--shadow);
}

th {
    background: var(--bg-th);
    color: white;
    text-align: left;
    padding: 12px;
    font-size: 13px;
}

td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px;
}

tr:hover { background: var(--bg-row-hover); }

td a {
    color: var(--text-link);
    text-decoration: none;
    font-weight: 500;
}

td a:hover { text-decoration: underline; }

.usages-cell { font-size: 11px; color: var(--text-muted); }