:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #dde1e6;
  --text: #1f2430;
  --muted: #6b7280;
  --accent: #2458d6;
  --accent-dark: #1a3f9e;
  --error: #c1121f;
  --success: #1a7f37;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.9rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.topbar .brand { font-weight: 600; color: var(--text); text-decoration: none; }
.topbar nav { display: flex; gap: 1.2rem; flex: 1; }
.topbar nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.topbar nav a:hover { color: var(--accent); }
.user-box { display: flex; gap: 1rem; align-items: center; font-size: 0.9rem; color: var(--muted); }
.user-box a { color: var(--muted); }

.content { max-width: 960px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }

h1 { font-size: 1.5rem; margin-bottom: 0.3rem; }
.hint { color: var(--muted); font-size: 0.92rem; }

.login-wrap { display: flex; justify-content: center; padding-top: 4rem; }
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}
.login-card label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.9rem; color: var(--muted); }
.login-card input {
  padding: 0.55rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
}
.login-card button, .drop-card button, .new-user-form button {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  cursor: pointer;
}
.login-card button:hover, .drop-card button:hover, .new-user-form button:hover { background: var(--accent-dark); }
.error { color: var(--error); font-size: 0.88rem; }

.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1rem; margin-top: 1.5rem; }
.tile {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2rem;
  text-decoration: none;
  color: var(--text);
}
.tile:hover { border-color: var(--accent); }
.tile h2 { margin: 0 0 0.4rem; font-size: 1.05rem; }
.tile p { margin: 0; color: var(--muted); font-size: 0.9rem; }

.drop-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; margin-top: 1.5rem; }
.drop-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 1.3rem; }
.drop-card h2 { font-size: 1.05rem; margin-top: 0; }

.client-field { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; color: var(--muted); margin-bottom: 0.8rem; }
.client-field input { padding: 0.5rem; border: 1px solid var(--border); border-radius: 6px; }

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 2rem 1rem;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone span { font-size: 0.82rem; }
.dropzone.dragover { border-color: var(--accent); background: #eef3fe; color: var(--accent-dark); }

.file-list { list-style: none; padding: 0; margin: 1rem 0 0; display: flex; flex-direction: column; gap: 0.5rem; }
.file-list li {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
}
.file-list .status-en-cours { color: var(--muted); }
.file-list .status-ok { color: var(--success); }
.file-list .status-erreur { color: var(--error); }

.placeholder-card { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 1.5rem; margin-top: 1.5rem; }

.breadcrumb { display: flex; align-items: center; gap: 0.4rem; margin: 1rem 0 0.5rem; font-size: 0.9rem; flex-wrap: wrap; }
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--muted); }
.breadcrumb-current { color: var(--muted); }

.folder-list { list-style: none; padding: 0; margin: 1rem 0 0; display: flex; flex-direction: column; gap: 0.4rem; }
.folder-entry {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  padding: 0.6rem 0.8rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
}
.folder-entry-name { display: flex; align-items: center; gap: 0.5rem; color: var(--text); text-decoration: none; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.folder-entry-name.is-dir { color: var(--text); font-weight: 500; }
.folder-entry-name.is-dir:hover { color: var(--accent); }
.folder-entry-icon { flex: none; }
.folder-entry-meta { display: flex; align-items: center; gap: 0.9rem; flex: none; color: var(--muted); font-size: 0.82rem; }

.users-table { width: 100%; border-collapse: collapse; margin-top: 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.users-table th, .users-table td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
.link-btn { background: none; border: none; color: var(--accent); cursor: pointer; font-size: 0.85rem; padding: 0; }

.new-user-form { display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: end; margin-top: 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 1rem; }
.new-user-form label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.85rem; color: var(--muted); }
.new-user-form input[type=text] { padding: 0.5rem; border: 1px solid var(--border); border-radius: 6px; }
.new-user-form .checkbox { flex-direction: row; align-items: center; gap: 0.4rem; }

.permissions-fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 0.8rem 1rem; margin: 0.2rem 0; display: flex; flex-direction: column; gap: 0.5rem; width: 100%; }
.permissions-fieldset legend { font-size: 0.82rem; color: var(--muted); padding: 0 0.3rem; }

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15171c;
    --surface: #1d2026;
    --border: #2c303a;
    --text: #e8eaed;
    --muted: #9aa0ab;
    --accent: #5b8bff;
    --accent-dark: #7fa3ff;
  }
  .dropzone.dragover { background: #202a44; }
}