/* ============================================================
   FiaT — Color palette
   Edit values here to restyle the entire application.
   ============================================================ */
:root {
  /* Backgrounds */
  --bg-primary:   #121212;   /* page background */
  --bg-secondary: #1c1c1c;   /* panels, sidebar, toolbar */
  --bg-tertiary:  #464444;   /* buttons, inputs, bar tracks */
  --bg-lub-f: #c7c7c7; 

  /* Accent / interactive */
  --color-accent:       #0da7ee;   /* primary red accent */
  --color-accent-hover: #0a6c99;   /* blue on hover */

  --color-lub-accent:       #2b9939;   /* primary red accent */
  --color-lub-accent-hover: #1f6929;   /* blue on hover */

  /* Semantic */
  --color-green:        #27ae60;   /* processed / save */
  --color-green-hover:  #2ecc71;
  --color-blue:       hsl(192, 66%, 50%);   /* modified highlight */
  --color-blue-hover:       hwb(192 6% 39%); 
  --color-orange:      hsl(14, 79%, 46%);
  --color-orange-hover:      hsl(14, 87%, 32%);
  --color-red:         #c0392b;   /* poor quality / trash */
  --color-red-hover:   #e74c3c;

  /* Per-category chart colours */
  --color-disorders:  #0da7ee;
  --color-signs:      #e6a211;

  /* Text */
  --text-primary:   #eeeeee;
  --text-secondary: #dfdfdf;
  --text-muted:     #b4b4b4;
  --text-dim:       #868686;

  /* Specific surfaces */
  --bg-image-area: hsl(0, 0%, 13%);  /* image viewer canvas background */
  --bg-thumb:      hsl(0, 0%, 12%);  /* thumbnail card background */

  /* Borders */
  --border: var(--bg-tertiary);

  /* Scrollbars */
  --scrollbar-size:  6px;
  --scrollbar-track: hsl(0, 0%, 9%);
  --scrollbar-thumb: #525151;
  --scrollbar-thumb-hover: hsl(0, 1%, 44%);
}

/* ── Webkit scrollbars (Chrome, Edge, Safari) ── */
::-webkit-scrollbar {
  width:  var(--scrollbar-size);
  height: var(--scrollbar-size);
}
::-webkit-scrollbar-track {
  background:    var(--scrollbar-track);
  border-radius: 999px;
}
::-webkit-scrollbar-thumb {
  background:    var(--scrollbar-thumb);
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--scrollbar-thumb-hover);
}
::-webkit-scrollbar-corner {
  background: var(--scrollbar-track);
}

/* ── Firefox ── */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}

/* ── Checkboxes (global — consistent with dark theme) ── */
input[type=checkbox] {
  appearance: none;
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border: 1.5px solid var(--bg-tertiary);
  border-radius: 3px;
  background: var(--bg-primary);
  cursor: pointer; flex-shrink: 0;
  vertical-align: middle;
  transition: background 0.12s, border-color 0.12s;
}
input[type=checkbox]:not(:checked):hover {
  border-color: var(--text-dim);
}
input[type=checkbox]:checked {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
input[type=checkbox]:focus { outline: none; }

/* ── Shared page header ── */
header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px;
  background: var(--bg-secondary);
  border-top: 3px solid var(--color-accent);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.header-brand { display: flex; align-items: center; gap: 10px; flex: 1; }
.header-icon  { width: 30px; height: 30px; object-fit: contain; flex-shrink: 0; }
.brand-name  { color: var(--color-accent); font-size: 1.25rem; font-weight: bold; letter-spacing: 2px; }
.brand-page  { color: var(--text-dim); font-size: 0.8rem; letter-spacing: 0.5px; }

/* ── Shared Home button ── */
.home-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 14px;
  border: 1px solid var(--border); border-radius: 5px;
  background: none; color: var(--text-secondary);
  text-decoration: none; font-size: 0.82rem; cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.home-btn:hover { border-color: var(--color-accent); color: var(--color-accent); background: var(--bg-tertiary); }

/* ── Annotation download button + dropdown (top-right header) ── */
.dl-dropdown-wrap { position: relative; display: inline-flex; flex-shrink: 0; margin-left: 10px; }
.header-download-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; flex-shrink: 0;
  border: 1px solid var(--border); border-radius: 5px;
  background: none; color: var(--text-secondary);
  cursor: pointer; text-decoration: none;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.header-download-btn:hover { border-color: var(--color-accent); color: var(--color-accent); background: var(--bg-tertiary); }
.header-download-btn svg  { width: 15px; height: 15px; flex-shrink: 0; }
.dl-dropdown {
  display: none; flex-direction: column; overflow: hidden;
  position: absolute; top: calc(100% + 6px); right: 0;
  min-width: 190px; background: var(--bg-secondary);
  border: 1px solid var(--border); border-radius: 5px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.45); z-index: 300;
}
.dl-dropdown.dl-open { display: flex; }
.dl-option {
  padding: 9px 14px; font-size: 0.83rem; color: var(--text-secondary);
  text-decoration: none; white-space: nowrap;
  transition: background 0.1s, color 0.1s;
}
.dl-option:hover { background: var(--bg-tertiary); color: var(--text-primary); }

/* ── User avatar (top-right header) ── */
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.88rem; font-weight: bold; color: #fff;
  cursor: pointer; flex-shrink: 0; user-select: none;
  border: 2px solid rgba(255,255,255,0.2);
  transition: filter 0.15s; margin-left: 10px;
}
.user-avatar:hover { filter: brightness(1.2); }

/* ── User settings panel ── */
#user-dropdown {
  display: none;
  position: fixed;
  width: 240px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 10px 32px rgba(0,0,0,0.5);
  z-index: 2000;
  overflow: hidden;
}

/* User header block */
.menu-user-header {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 14px 12px;
}
.menu-user-avatar {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.88rem; font-weight: bold; color: #fff;
  border: 2px solid rgba(255,255,255,0.2);
}
.menu-user-name {
  font-size: 0.88rem; font-weight: bold;
  color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* ── Annotation-mode badge (header + user panel) ── */
.mode-badge {
  display: inline-flex; align-items: center; flex-shrink: 0;
  padding: 2px 8px; border-radius: 10px;
  font-size: 0.68rem; letter-spacing: 0.4px; font-weight: bold;
  text-transform: uppercase; white-space: nowrap;
  border: 1px solid var(--border); background: var(--bg-tertiary);
  color: var(--text-muted);
}
.mode-badge.mode-intra { border-color: var(--color-signs); color: var(--color-signs); }
.mode-badge.mode-inter { border-color: var(--color-green); color: var(--color-green); }
/* Inside the user panel the badge wraps under the name rather than squeezing it. */
.menu-user-header .mode-badge { margin-left: auto; max-width: 96px; overflow: hidden; text-overflow: ellipsis; }

/* Divider */
.menu-divider { height: 1px; background: var(--border); margin: 0; }

/* Setting rows (label + toggle group) */
.menu-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px;
}
.menu-row-label {
  font-size: 0.75rem; text-transform: uppercase;
  letter-spacing: 0.8px; color: var(--text-muted);
}

/* Segmented toggle buttons */
.menu-toggle-group {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 4px; overflow: hidden;
}
.menu-toggle-btn {
  padding: 4px 12px; font-size: 0.78rem;
  border: none; background: var(--bg-tertiary);
  color: var(--text-muted); cursor: pointer;
  transition: background 0.12s, color 0.12s;
  user-select: none;
}
.menu-toggle-btn + .menu-toggle-btn { border-left: 1px solid var(--border); }
.menu-toggle-btn:hover { color: var(--text-primary); }
.menu-toggle-btn.active {
  background: var(--color-accent); color: #fff; font-weight: bold;
}

/* Action items */
.user-menu-item {
  padding: 10px 16px;
  font-size: 0.84rem; color: var(--text-secondary);
  cursor: pointer; transition: background 0.1s, color 0.1s;
  user-select: none;
}
.user-menu-item:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.user-menu-item.danger { color: var(--color-accent); }
.user-menu-item.danger:hover { background: rgba(233,69,96,0.1); }

/* ── Language-section visibility ── */
.lang-fr-only { display: none; }
html.lang-fr .lang-fr-only { display: block; }
html.lang-fr .lang-en-only { display: none; }

/* ── Light theme overrides ── */
[data-theme="light"] {
  --bg-primary:   #f0f0f0;
  --bg-secondary: #ffffff;
  --bg-tertiary:  #e4e4e4;
  --text-primary:   #1a1a1a;
  --text-secondary: #2c2c2c;
  --text-muted:     #505050;
  --text-dim:       #6b6b6b;   /* darkened: #888 fails AA on white */
  --bg-image-area:  hsl(0, 0%, 84%);
  --bg-thumb:       hsl(0, 0%, 87%);
  --border:         #c0c0c0;
  --scrollbar-track: #e4e4e4;
  --scrollbar-thumb: #b0b0b0;
  --scrollbar-thumb-hover: #888888;
}

/* Fix elements that use rgba(white) borders — invisible in light mode */
[data-theme="light"] .user-avatar,
[data-theme="light"] .menu-user-avatar,
[data-theme="light"] .h-avatar {
  border-color: rgba(0, 0, 0, 0.18);
}

/* Fix checkbox border — --bg-tertiary in light mode is too close to page bg */
[data-theme="light"] input[type=checkbox] {
  border-color: var(--border);
  background: var(--bg-secondary);
}

/* Active toggle buttons: use white text on accent — improve legibility */
[data-theme="light"] .menu-toggle-btn.active {
  color: #ffffff;
}