/* ===== Variables Thème ===== */
:root {
  --bg-color: #0d1117;
  --bg-secondary: #161b22;
  --border-color: #30363d;
  --text-color: #c9d1d9;
  --text-secondary: #8b949e;
  --primary-color: #238636;
  --primary-hover: #2ea043;
  --danger-color: #da3633;
  --danger-hover: #f85149;
  --warning-color: #f0883e;
  --warning-hover: #fd9a55;
  --info-color: #58a6ff;
  --info-hover: #79c0ff;
  --tag-bg: #1f6feb;
  --tag-bg-hover: #388bfd;
  --active-item: #21262d;
  --header-bg: #161b22;
  --button-bg: #21262d;
  --button-border: #30363d;
  --button-text: #c9d1d9;
  --modal-backdrop: rgba(0,0,0,0.6);
}
.light-theme {
  --bg-color: #f6f8fa;
  --bg-secondary: #ffffff;
  --border-color: #d0d7de;
  --text-color: #24292f;
  --text-secondary: #57606a;
  --primary-color: #2da44e;
  --primary-hover: #2c974b;
  --danger-color: #cf222e;
  --danger-hover: #a40e26;
  --warning-color: #bf8700;
  --warning-hover: #9a6700;
  --info-color: #0969da;
  --info-hover: #0550ae;
  --tag-bg: #0969da;
  --tag-bg-hover: #0550ae;
  --active-item: #f6f8fa;
  --header-bg: #f6f8fa;
  --button-bg: #f6f8fa;
  --button-border: #d0d7de;
  --button-text: #24292f;
  --modal-backdrop: rgba(0,0,0,0.4);
}
* { box-sizing:border-box; margin:0; padding:0; }
body {
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg-color);
  color:var(--text-color);
  transition:0.3s;
  line-height:1.5;
}
header {
  background:var(--header-bg);
  border-bottom:1px solid var(--border-color);
  padding:16px 24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
}
.app-title { font-size:1.4rem; font-weight:700; display:flex; align-items:center; }
.app-title i { margin-right:8px; color:var(--primary-color); }
.theme-toggle { background:transparent; border:none; color:var(--text-color); cursor:pointer; font-size:1.4rem; padding:4px; }

.container {
  max-width:1200px;
  margin:24px auto;
  padding:0 16px 40px;
}
.card {
  background:var(--bg-secondary);
  border:1px solid var(--border-color);
  border-radius:10px;
  padding:24px;
  margin-bottom:24px;
  box-shadow:0 4px 8px rgba(0,0,0,0.2);
}
.card-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:20px; flex-wrap:wrap; gap:8px; }
.card-title { font-size:1.2rem; font-weight:600; }
.input-group {
  display:flex; gap:12px; flex-wrap:wrap; margin-bottom:20px;
}
input, select, textarea, button {
  border:1px solid var(--border-color);
  border-radius:6px;
  padding:12px;
  background:var(--button-bg);
  color:var(--text-color);
  font-size:1rem;
}
input:focus, select:focus, textarea:focus {
  outline:none;
  box-shadow:0 0 0 3px rgba(3,102,214,0.4);
  border-color:var(--info-color);
}
button {
  cursor:pointer;
  border:none;
  transition:0.2s;
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:500;
}
button:hover { background:var(--active-item); }
.btn-primary { background:var(--primary-color); color:#fff; }
.btn-primary:hover { background:var(--primary-hover); }
.btn-danger { background:var(--danger-color); color:#fff; }
.btn-danger:hover { background:var(--danger-hover); }
.btn-info { background:var(--info-color); color:#fff; }
.btn-info:hover { background:var(--info-hover); }
.btn-neutral { background:var(--button-bg); color:var(--text-color); }
.view-toggle { margin-left:auto; }

/* ===== Task Cards ===== */
.task-list { list-style:none; }
.task-list.grid-view {
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(320px,1fr));
  gap:24px;
}
.task-list.list-view { display:block; }

.task-item {
  background:var(--bg-secondary);
  border:1px solid var(--border-color);
  border-left:5px solid transparent;
  border-radius:8px;
  padding:20px;
  display:flex;
  flex-direction:column;
  transition:background 0.2s, transform 0.2s;
}
.task-item:hover { background:var(--active-item); transform:translateY(-2px); }
.list-view .task-item {
  flex-direction:row;
  align-items:center;
  padding:16px;
  gap:12px;
}
.task-item.prio-high { border-left-color:var(--danger-color); }
.task-item.prio-medium { border-left-color:var(--warning-color); }
.task-item.prio-low { border-left-color:var(--info-color); }

.task-header {
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:16px;
}
.list-view .task-header { flex:1; margin-bottom:0; }

.task-title { font-size:1.05rem; font-weight:600; flex:1; margin-left:12px; }
.task-completed .task-title { text-decoration:line-through; color:var(--text-secondary); }

.task-description {
  font-size:0.95rem;
  color:var(--text-secondary);
  margin-bottom:16px;
}
.list-view .task-description { display:none; }

.task-meta {
  display:flex;
  gap:14px;
  font-size:0.85rem;
  margin-bottom:16px;
  color:var(--text-secondary);
}
.list-view .task-meta { display:none; }

.task-tags {
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:16px;
}
.list-view .task-tags { display:none; }
.tag {
  background:var(--tag-bg);
  color:#fff;
  padding:3px 10px;
  border-radius:12px;
  font-size:0.8rem;
  transition:background 0.2s;
}
.tag:hover { background:var(--tag-bg-hover); }

.actions {
  display:flex;
  gap:12px;
  margin-top:auto;
}
.list-view .actions { margin-top:0; }

/* ===== Filters & Controls ===== */
.toolbar {
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  align-items:center;
  margin-bottom:24px;
}
.toolbar select, .toolbar button, .toolbar .view-toggle { flex:1; min-width:140px; }

/* ===== Logs ===== */
.logs-container {
  max-height:350px;
  overflow-y:auto;
  background:var(--bg-secondary);
  border:1px solid var(--border-color);
  border-radius:8px;
  padding:16px;
}
.log-controls {
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:16px;
}
.log-controls select, .log-controls input, .log-controls button {
  padding:10px;
  border:1px solid var(--border-color);
  background:var(--button-bg);
  color:var(--text-color);
  border-radius:6px;
  font-size:1rem;
}
.log-entry {
  display:flex;
  gap:12px;
  padding:8px 0;
  border-bottom:1px solid var(--border-color);
  font-size:0.85rem;
}
.log-entry:last-child { border-bottom:none; }
.log-time { width:90px; color:var(--text-secondary); }
.log-action { width:90px; font-weight:600; text-transform:capitalize; }
.log-add { color:var(--primary-color); }
.log-edit { color:var(--warning-color); }
.log-delete { color:var(--danger-color); }
.log-complete { color:var(--info-color); }

/* ===== Footer ===== */
footer {
  background:var(--bg-secondary);
  border-top:1px solid var(--border-color);
  padding:24px;
  text-align:center;
  font-size:0.9rem;
  color:var(--text-secondary);
  margin-top:40px;
}
footer a {
  color:var(--primary-color);
  margin:0 10px;
  text-decoration:none;
  transition:color 0.2s;
}
footer a:hover { color:var(--primary-hover); text-decoration:underline; }

/* ===== Responsive ===== */
@media(max-width: 900px) {
  .task-list.grid-view { grid-template-columns:1fr 1fr; }
}
@media(max-width: 600px) {
  header, .toolbar { flex-direction:column; align-items:stretch; }
  .task-list.grid-view { grid-template-columns:1fr; }
  .list-view .task-item { flex-direction:column; align-items:flex-start; }
  .input-group, .card-header { flex-direction:column; align-items:stretch; }
  .toolbar select, .toolbar button, .toolbar .view-toggle { min-width:0; }
}