/* ==========================================================================
   WORKHUB — DESIGN SYSTEM (Dark Luxury Gold)
   Restyled to match the onyxline-accounting app's token palette (src/styles.css).
   Single source of truth for the shared app shell (dashboard/finance/science).
   Every id/class below that is queried by script.js is preserved exactly.
   ========================================================================== */

/* ---------------------------------------------------------------------- */
/* 1. DESIGN TOKENS                                                        */
/* ---------------------------------------------------------------------- */
:root {
  /* Neutrals — accounting app's light theme (dark navy default lives in [data-theme="dark"]) */
  --bg-color: #ECEEF2;
  --bg-color-2: #F3F4F7;
  --card-bg: #FFFFFF;
  --text-primary: #15181E;
  --text-secondary: #575A60;
  --text-muted: #696B6F;
  --border-color: rgba(20, 24, 33, 0.10);
  --border-light: rgba(20, 24, 33, 0.06);
  --hover-bg: #E8EAEF;

  /* Gold is the one true system accent (accounting app pattern) — primary buttons/active
     states/sidebar all resolve through it instead of a separate ink-black token. */
  --gold: #B0892A;
  --gold-light: #8A6A17;
  --on-gold: #1A1407; /* fixed near-black text-on-gold, same value in both themes (accounting's .btn-gold) */
  --primary-color: var(--gold);
  --primary-hover: var(--gold-light);

  /* Module accents — one subtle, clearly-distinct-from-gold tint per module, sourced from
     the accounting app's own amber/blue tokens (not invented). */
  --sage: #2F6AE0;
  --terracotta: #9A6B0D;
  --finance-accent: #9A6B0D;
  --science-accent: #2F6AE0;
  --science-accent-text: #2358B8;

  /* Semantic status — accounting app's green/red/amber/blue */
  --success-color: #1C8F5A;
  --danger-color: #BD3B3B;
  --warning-color: #9A6B0D;
  --info-color: #2F6AE0;

  /* Elevation — accounting app's real two-layer shadows, replacing the old whisper-soft values */
  --shadow-soft: 0 1px 2px rgba(15, 23, 42, 0.07), 0 1px 1px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 24px 60px rgba(15, 23, 42, 0.16);
  --shadow-modal: 0 24px 60px rgba(15, 23, 42, 0.20);
  --shadow-gold: 0 8px 22px rgba(176, 137, 42, 0.18);

  /* Radius scale — accounting app's rounder scale */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-pill: 999px;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  /* Typography — DM Serif Display mis-shapes Vietnamese tone marks, so it is used ONLY for
     short ASCII strings (brand wordmark); every heading/nav/section label stays on --font-body. */
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'DM Mono', monospace;

  /* Type scale — consolidates ~20 near-duplicate ad-hoc sizes (0.78rem/0.82rem/0.88rem/0.92rem/14.5px...)
     that all served the same role into one deliberate ladder. Left untouched: badge/table/calendar cells
     and the 576px crowded header, which are pixel-tuned against a specific overflow constraint. */
  --text-2xs: 0.75rem;    /* 12px — uppercase labels, table headers, small badges */
  --text-xs: 0.8125rem;   /* 13px — meta text, timestamps, secondary captions */
  --text-sm: 0.875rem;    /* 14px — form labels, compact buttons, list rows */
  --text-base: 0.9375rem; /* 15px — body default */
  --heading-sm: 1.05rem;  /* 16.8px — small widget/panel headers (chat, calendar, today-events) */

  /* Motion — opacity/transform only, no bounce/spring */
  --transition-fast: all 0.15s ease;
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --header-height: 64px;
  --sidebar-width: 250px;
  --sidebar-collapsed: 72px;

  /* Legacy variable aliases kept so any missed selector still resolves sanely */
  --bg-body: var(--bg-color);
  --bg-surface: var(--card-bg);
  --bg-surface-solid: var(--card-bg);
  --text-color: var(--text-primary);
  --secondary-color: var(--text-secondary);
  --border-glass: var(--border-color);
  --border-radius-sm: var(--radius-sm);
  --border-radius-md: var(--radius-md);
  --border-radius-lg: var(--radius-lg);
  --radius-card: var(--radius-lg);
  --radius-btn: var(--radius-sm);
  --accent-color: var(--gold);
  --accent-light: var(--hover-bg);
  --gradient-primary: var(--primary-color);
  --shadow-sm: none;
  --shadow-md: var(--shadow-soft);
  --shadow-lg: var(--shadow-hover);
  --shadow-glow: none;
  --glass-blur: none;
  --main-bg-image: none;
}

[data-theme="dark"] {
  --bg-color: #0A0A0F;
  --bg-color-2: #16161F;
  --card-bg: #111118;
  --text-primary: #F0EDE8;
  --text-secondary: #B9B7B4;
  --text-muted: #8F8E8D;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.05);
  --hover-bg: #1D1D28;

  --gold: #C9A84C;
  --gold-light: #E8C87A;
  --primary-color: var(--gold);
  --primary-hover: var(--gold-light);

  --sage: #5B8FF9;
  --terracotta: #E0A64C;
  --finance-accent: #E0A64C;
  --science-accent: #5B8FF9;
  --science-accent-text: #86AEFF;

  --success-color: #3DBA87;
  --danger-color: #E05C5C;
  --warning-color: #E0A64C;
  --info-color: #5B8FF9;

  --shadow-soft: inset 0 1px 0 rgba(255, 255, 255, 0.05), 0 1px 3px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 24px 60px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  --shadow-modal: 0 24px 60px rgba(0, 0, 0, 0.6);
  --shadow-gold: 0 8px 22px rgba(201, 168, 76, 0.22);
}

/* Bootstrap paints text-dark / text-secondary / bg-success / badges from its
   --bs-*-rgb channel variables; without this remap those utilities keep
   Bootstrap blue/green/black and turn unreadable in dark mode.
   (rest/ Lounge doesn't load this sheet, so its Bootstrap look is untouched.) */
:root {
  --bs-dark-rgb: 21, 24, 30;
  --bs-secondary-rgb: 87, 90, 96;
  --bs-success-rgb: 28, 143, 90;
  --bs-danger-rgb: 189, 59, 59;
  --bs-warning-rgb: 154, 107, 13;
  --bs-info-rgb: 47, 106, 224;
  --bs-primary-rgb: 21, 24, 30;
  --bs-light-rgb: 243, 244, 247;
  --bs-body-color: var(--text-primary);
  --bs-secondary-color: var(--text-muted);
}
[data-theme="dark"] {
  --bs-dark-rgb: 240, 237, 232;
  --bs-secondary-rgb: 185, 183, 180;
  --bs-success-rgb: 61, 186, 135;
  --bs-danger-rgb: 224, 92, 92;
  --bs-warning-rgb: 224, 166, 76;
  --bs-info-rgb: 91, 143, 249;
  --bs-primary-rgb: 240, 237, 232;
  --bs-light-rgb: 29, 29, 40;
  --bs-body-bg: #0A0A0F;
  --bs-body-color: #F0EDE8;
}

/* ---------------------------------------------------------------------- */
/* 2. RESET & GLOBAL                                                       */
/* ---------------------------------------------------------------------- */
* { box-sizing: border-box; margin: 0; padding: 0; }

::selection { background-color: var(--primary-color); color: var(--on-gold); }

*:focus:not(:focus-visible) { outline: none; }
*:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  border-radius: 2px;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Loading spinners (fa-spin) were unstyled everywhere — picked up the browser's default
   icon color instead of the module accent, reading as unfinished during every data fetch. */
.fa-spin { color: var(--text-muted); opacity: 0.85; }
body[data-module="finance"] .fa-spin { color: var(--finance-accent); }
body[data-module="science"] .fa-spin { color: var(--science-accent); }

/* Skeleton loading — replaces the blank-then-spinner flash on first load of a section
   (Task/Progress/Calendar/File/Trash) with shimmering placeholders shaped like the
   content about to arrive, per the same UX language as everything else on this page. */
.skeleton-block {
  background: linear-gradient(90deg, var(--hover-bg) 25%, var(--border-color) 50%, var(--hover-bg) 75%);
  background-size: 200% 100%;
  animation: skeletonShimmer 1.4s ease-in-out infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeletonShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}
@media (prefers-reduced-motion: reduce) {
  .skeleton-block { animation: none; background: var(--hover-bg); }
}
.skeleton-table-row td { padding: 14px 16px; }
.skeleton-bar { height: 14px; width: 85%; }
.skeleton-bar.short { width: 55%; }
.skeleton-bar.tiny { width: 30%; }
.skeleton-list-item { display: flex; align-items: center; gap: 10px; padding: 10px 4px; }
.skeleton-avatar { width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0; }
.skeleton-lines { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.skeleton-card { background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 16px; margin-bottom: 12px; }
.skeleton-card .skeleton-bar { margin-bottom: 10px; }
.skeleton-card .skeleton-bar:last-child { margin-bottom: 0; }

body {
  font-family: var(--font-body);
  font-weight: 300;
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
  /* --font-body, not --font-display: headings carry real Vietnamese text throughout
     the app, and DM Serif Display mis-shapes Vietnamese tone-mark combinations. */
  font-family: var(--font-body);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 0.75rem;
  letter-spacing: 0.01em;
}

.label-mono, .text-mono, .eyebrow, .sec-label {
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

a { color: inherit; }

/* ---------------------------------------------------------------------- */
/* 3. LAYOUT — HEADER & SIDEBARS                                           */
/* ---------------------------------------------------------------------- */
#main-container, #main-content { background: transparent; }

#app-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 24px;
  background: color-mix(in srgb, var(--card-bg) 85%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  height: var(--header-height);
  position: sticky; top: 0; z-index: 100;
}

.logo {
  /* --font-body, not --font-display: science/index.html's logo text is Vietnamese
     ("Nhóm Khoa Học"), which DM Serif Display mis-shapes. */
  font-family: var(--font-body);
  font-size: 24px; font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.01em;
}

/* Bootstrap's .text-primary defaults to its own blue; the app shell uses neutral ink instead. */
.content-section .text-primary, .card .text-primary { color: var(--text-primary) !important; }

.user-info { display: flex; align-items: center; gap: 12px; }

#user-display {
  cursor: pointer; font-weight: 600; display: flex; align-items: center;
  gap: 8px; padding: 6px 14px; border-radius: var(--radius-pill);
  background: transparent; border: 1px solid transparent;
  transition: var(--transition-fast);
}
#user-display:hover { background: var(--hover-bg); }
#user-display i { font-size: 20px; color: var(--text-secondary); }

#main-container { display: flex; height: calc(100vh - var(--header-height)); overflow: hidden; }

#main-content { flex-grow: 1; padding: 32px 40px; overflow-y: auto; }

.content-section h2 {
  font-size: 22px; font-weight: 700; color: var(--text-primary);
  margin-bottom: 24px; padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
  display: inline-block;
}

/* --- Left sidebar --- */
/* Theme-aware surface + hairline border, gold inset bar for the active item —
   matches the accounting app's .sidebar/.nav-item.active pattern. */
#app-sidebar {
  width: var(--sidebar-collapsed);
  background: var(--card-bg);
  border-right: 1px solid var(--border-color);
  padding-top: 15px; flex-shrink: 0; height: 100%;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex; flex-direction: column; overflow-x: hidden;
}
#app-sidebar.expanded { width: var(--sidebar-width); }
#app-sidebar ul { list-style: none; padding: 0 12px; margin: 0; }

.nav-item {
  display: flex; align-items: center; padding: 11px 14px; margin-bottom: 2px;
  cursor: pointer; border-radius: var(--radius-sm);
  color: var(--text-secondary); font-weight: 500; font-size: 14px;
  transition: var(--transition-fast);
  justify-content: center; white-space: nowrap;
  border-left: 2px solid transparent;
}
/* --font-body, not --font-display: nav labels are Vietnamese on the finance/science shells. */
.nav-item span { font-family: var(--font-body); font-size: 15.5px; font-weight: 500; }
.nav-item:hover { background-color: var(--hover-bg); color: var(--text-primary); }
.nav-item.active {
  background: color-mix(in srgb, var(--gold) 12%, transparent);
  color: var(--gold-light);
  font-weight: 600;
  border-left-color: var(--gold);
}
.nav-item i { font-size: 17px; min-width: 24px; text-align: center; }
.nav-item .custom-finance-icon { width: 18px; height: 18px; min-width: 24px; object-fit: contain; }

#app-sidebar.expanded .nav-item { justify-content: flex-start; }
#app-sidebar.expanded .nav-item span { display: inline-block; margin-left: 14px; }
#app-sidebar:not(.expanded) .nav-item span { display: none; }

/* Module accent: Finance / Science cross-links get a subtle colored hint, not a full takeover */
.nav-item-finance:hover { border-left-color: var(--finance-accent); background: color-mix(in srgb, var(--finance-accent) 12%, transparent); color: var(--text-primary); }
.nav-item-finance i, .nav-item-finance img { filter: none; }
.nav-item-science:hover { border-left-color: var(--science-accent); background: color-mix(in srgb, var(--science-accent) 14%, transparent); color: var(--text-primary); }

/* Back-to-dashboard link inside a module sidebar */
.nav-back-btn { border: 1px solid var(--border-color); margin-bottom: 12px; }
.nav-back-btn:hover { transform: translateX(3px); }

/* Module-scoped active nav state (finance/science shells set data-module on <body>) */
body[data-module="finance"] .nav-item.active { background: color-mix(in srgb, var(--finance-accent) 12%, transparent); color: var(--finance-accent); border-left-color: var(--finance-accent); }
body[data-module="science"] .nav-item.active { background: color-mix(in srgb, var(--science-accent) 14%, transparent); color: var(--science-accent-text); border-left-color: var(--science-accent); }
body[data-module="finance"] .content-section h2 { border-bottom-color: color-mix(in srgb, var(--finance-accent) 40%, transparent); }
body[data-module="science"] .content-section h2 { border-bottom-color: color-mix(in srgb, var(--science-accent-text) 55%, transparent); }
body[data-module="finance"] .text-primary { color: var(--finance-accent) !important; }
body[data-module="science"] .text-primary { color: var(--science-accent-text) !important; }

#hamburger-menu {
  text-align: center; padding: 10px; margin-bottom: 10px; cursor: pointer;
  font-size: 18px; color: var(--text-muted);
  transition: var(--transition-fast);
}
#hamburger-menu:hover { color: var(--text-primary); }

/* --- Right sidebar (member list floating panel) --- */
#right-sidebar {
  position: fixed; top: calc(var(--header-height) + 20px); bottom: 20px; right: 20px;
  width: 320px;
  background: var(--card-bg);
  box-shadow: var(--shadow-modal);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px; z-index: 1050;
  transform: translateX(120%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex; flex-direction: column;
}
#right-sidebar.open { transform: translateX(0); }

.right-sidebar-content { flex: 1; display: flex; flex-direction: column; overflow: hidden; }

.sidebar-header, .right-sidebar-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; padding-bottom: 14px;
  border-bottom: 1px solid var(--border-color);
}
.sidebar-header h4, .right-sidebar-header h5 { margin: 0; font-size: 1.05rem; font-weight: 800; color: var(--text-primary); }

#close-right-sidebar {
  background: var(--hover-bg); border: none; font-size: 1.1rem; color: var(--text-secondary);
  cursor: pointer; transition: var(--transition-fast);
  width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
#close-right-sidebar:hover { background: color-mix(in srgb, var(--danger-color) 12%, var(--card-bg)); color: var(--danger-color); }

#member-list-container { flex: 1; overflow-y: auto; padding-right: 8px; }

.member-card {
  display: flex; align-items: center; padding: 12px; margin-bottom: 10px;
  background: var(--hover-bg);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: var(--transition-fast);
  flex-shrink: 0;
}
.member-card:hover { border-color: var(--border-color); }

.member-card .member-avatar { margin-right: 14px !important; width: 44px !important; height: 44px !important; font-size: 16px !important; }
.member-card .member-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }

.status-indicator {
  position: absolute; bottom: 2px; right: 0; width: 12px; height: 12px;
  border-radius: 50%; border: 2px solid var(--card-bg);
}
.status-online { background-color: var(--success-color); }
.status-offline { background-color: var(--text-muted); }

.member-info { display: flex; flex-direction: column; overflow: hidden; min-width: 0; }
.member-name { font-weight: 700; font-size: var(--text-sm); color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.member-status-text { font-size: var(--text-2xs); color: var(--text-secondary); margin-top: 2px; }
.text-online { color: var(--success-color); font-weight: 600; }

/* ---------------------------------------------------------------------- */
/* 4. COMPONENTS                                                           */
/* ---------------------------------------------------------------------- */
.card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 24px; margin-bottom: 24px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-soft);
  transition: box-shadow 0.25s ease, transform 0.25s ease;
  position: relative;
}
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }

.card h3 {
  margin-top: 0; font-size: 1.2rem; font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px; margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.card h3 i { color: var(--text-secondary); }

.glass-panel {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-soft);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}
.glass-panel:hover { box-shadow: var(--shadow-hover); }

/* --- Buttons --- */
button {
  font-family: inherit; font-size: 15px; letter-spacing: 0.1px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  cursor: pointer; font-weight: 600;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none;
  touch-action: manipulation;
}

a, .nav-item { touch-action: manipulation; }

/* Global press feedback — every button gets a subtle tactile scale-down on click */
button:active:not(:disabled) { transform: scale(0.97); }

.primary-btn {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--on-gold);
  padding: 11px 24px;
  border: none;
  box-shadow: var(--shadow-gold);
}
.primary-btn:hover:not(:disabled) { filter: brightness(1.06); }

.secondary-btn {
  background: var(--hover-bg);
  color: var(--text-secondary);
  padding: 10px 22px;
  border: 1px solid var(--border-color);
}
.secondary-btn:hover:not(:disabled) { background: var(--border-color); color: var(--text-primary); }

#logout-btn {
  background: color-mix(in srgb, var(--danger-color) 12%, var(--card-bg)); color: var(--danger-color);
  padding: 8px 18px; font-size: 14px;
  border: 1px solid transparent;
}
#logout-btn:hover { background: var(--danger-color); color: #120F0A; }

button:disabled { opacity: 0.5; cursor: not-allowed; }

.rounded-circle, .chat-btn, #chat-toggle-btn, .btn-icon { border-radius: 50% !important; }

/* Theme toggle + auto-theme buttons */
#theme-toggle-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  cursor: pointer; transition: var(--transition-fast);
  background: var(--hover-bg); border: 1px solid transparent; color: var(--text-primary);
}
#theme-toggle-btn:hover { background: var(--border-color); }
#theme-toggle-btn i { transition: transform 0.25s ease; }
#theme-toggle-btn:hover i { transform: rotate(15deg); }

#auto-theme-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border-radius: var(--radius-sm) !important; font-weight: 600 !important;
  padding: 8px 14px !important; transition: var(--transition-fast) !important;
}
#auto-theme-btn.btn-primary { background-color: var(--text-primary) !important; color: var(--card-bg) !important; border: none !important; }
#auto-theme-btn.btn-outline-primary { background-color: transparent !important; color: var(--text-primary) !important; border: 1px solid var(--border-color) !important; }
#auto-theme-btn:hover { background-color: var(--hover-bg) !important; }
#auto-theme-btn i { background: transparent !important; border: none !important; box-shadow: none !important; }

/* --- Inputs & Forms --- */
.form-group { margin-bottom: 20px; position: relative; }

label { font-weight: 600; margin-bottom: 8px; display: block; color: var(--text-secondary); font-size: var(--text-sm); }

.text-input, textarea, select, input[type="text"], input[type="password"], input[type="number"], input[type="date"],
input.text-input, select.text-input, .form-select, .form-control {
  width: 100%; padding: 10px 14px;
  font-size: 15px;
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  background: var(--hover-bg);
  border: 1px solid transparent;
  transition: var(--transition-fast);
}

.text-input:focus, textarea:focus, select:focus, input:focus,
.form-select:focus, .form-control:focus {
  background: var(--card-bg);
  border-color: var(--gold);
  outline: none;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--gold) 28%, transparent);
}

textarea { resize: vertical; min-height: 100px; font-family: inherit; }

.form-select option, select.text-input option {
  background-color: var(--card-bg);
  color: var(--text-primary);
  font-weight: 500;
}
select.text-input option:checked { background-color: var(--hover-bg); color: var(--text-primary); font-weight: 600; }

.file-upload-label {
  padding: 32px;
  border-radius: var(--radius-md);
  text-align: center; cursor: pointer;
  color: var(--text-muted);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  background: var(--hover-bg);
  border: 2px dashed var(--border-color);
  transition: var(--transition-fast);
}
.file-upload-label i { font-size: 1.8rem; margin-bottom: 4px; color: var(--text-muted); transition: 0.2s; }
.file-upload-label:hover {
  border-color: var(--text-primary); border-style: solid;
  background: var(--border-color); color: var(--text-primary);
}
.file-upload-label:hover i { color: var(--text-primary); }

/* --- Tables --- */
.table-responsive {
  overflow-x: auto;
  border-radius: var(--radius-md);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
}

.data-table { width: 100%; border-collapse: collapse; font-size: var(--text-base); background: transparent; }
.data-table th {
  background: var(--card-bg); color: var(--text-secondary); font-weight: 700;
  padding: 14px 18px; text-align: left;
  text-transform: uppercase; font-size: var(--text-2xs); letter-spacing: 0.05em;
  border-bottom: 2px solid var(--border-color);
}
.data-table td { padding: 14px 18px; border-bottom: 1px solid var(--border-color); vertical-align: middle; color: var(--text-primary); font-variant-numeric: tabular-nums; }
.data-table tbody tr:nth-child(even):not(:hover) td { background: var(--bg-color-2); }
.data-table tbody tr:hover td { background: var(--hover-bg); }

.data-table td a { color: var(--text-primary); text-decoration: none; font-weight: 600; border-bottom: 1px dashed var(--border-color); }
.data-table td a:hover { color: var(--info-color); border-bottom-color: var(--info-color); }

.action-btn { font-size: 17px; margin: 0 5px; transition: transform 0.15s ease; display: inline-block; }
.action-view { color: var(--info-color); }
.action-delete { color: var(--text-muted); }
.action-view:hover { transform: scale(1.15); }
.action-delete:hover { color: var(--danger-color); transform: scale(1.15); }

table.table {
  --bs-table-bg: transparent;
  --bs-table-accent-bg: transparent;
  --bs-table-striped-bg: var(--hover-bg);
  --bs-table-hover-bg: var(--hover-bg);
  background-color: transparent;
  border-color: var(--border-color);
}
table.table th, table.table td { background-color: transparent; border-bottom: 1px solid var(--border-color); color: var(--text-primary); vertical-align: middle; }
table.table thead th { background: var(--card-bg); border-bottom: 2px solid var(--border-color); color: var(--text-secondary); font-weight: 700; text-transform: uppercase; font-size: var(--text-2xs); letter-spacing: 0.05em; }
table.table-hover tbody tr:hover td { background-color: var(--hover-bg); color: var(--text-primary); }

.monday-table { width: 100%; border-collapse: separate; border-spacing: 0 10px; }
.monday-table th { text-align: left; padding: 8px 15px; color: var(--text-secondary); font-size: var(--text-2xs); font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; }
.monday-table tbody tr { transition: var(--transition-fast); background: var(--card-bg); border-radius: var(--radius-md); box-shadow: var(--shadow-soft); }
.monday-table tbody tr:hover { background: var(--hover-bg); }
.monday-table td { padding: 14px 15px; vertical-align: middle; color: var(--text-primary); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); background: transparent; }
.monday-table tr td:first-child { border-left: 4px solid var(--primary-color); border-top-left-radius: var(--radius-md); border-bottom-left-radius: var(--radius-md); }
.monday-table tr td:last-child { border-top-right-radius: var(--radius-md); border-bottom-right-radius: var(--radius-md); }

/* --- Avatars --- */
.avatar-stack { display: flex; align-items: center; padding-left: 10px; }
.member-avatar {
  width: 32px; height: 32px; border-radius: 50% !important;
  background: var(--text-primary);
  color: var(--card-bg);
  display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 800;
  border: 2px solid var(--card-bg);
  margin-left: -10px; margin-right: 0;
  position: relative; z-index: 1;
  transition: var(--transition-fast);
}
.member-avatar:hover { z-index: 10; transform: translateY(-3px); }

/* ---------------------------------------------------------------------- */
/* 5. DASHBOARD & PROGRESS                                                 */
/* ---------------------------------------------------------------------- */
.main-widgets > div, .side-widgets > div { background-color: transparent; box-shadow: none; border: none; }

.dashboard-widgets .card, .dashboard-widgets .widget-item {
  background-color: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  margin-bottom: 20px;
  border: 1px solid var(--border-color);
  height: auto;
  transition: box-shadow 0.25s ease;
}
.dashboard-widgets .card:hover, .dashboard-widgets .widget-item:hover { box-shadow: var(--shadow-hover); }

.dashboard-widgets { display: flex; flex-direction: row; align-items: flex-start; gap: 20px; flex-wrap: wrap; }
.main-widgets { flex: 1 1 65%; min-width: 400px; max-width: 100%; }
.side-widgets { flex: 1 1 30%; min-width: 280px; max-width: 100%; }

.progress {
  background-color: var(--hover-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-pill);
  height: 10px; overflow: hidden;
}
.progress-bar { border-radius: var(--radius-pill); transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1); }
.progress-bar.bg-primary { background-color: var(--gold); }
.progress-bar.bg-info { background-color: var(--info-color); }
.progress-bar.bg-success { background-color: var(--success-color); }
.progress-bar.bg-warning { background-color: var(--warning-color); }
.progress-bar.bg-danger { background-color: var(--danger-color); }

#today-calendar-view li, #today-calendar-view > div {
  background: var(--hover-bg);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--text-primary);
  border-radius: var(--radius-md);
  margin-bottom: 10px; padding: 12px 16px;
  transition: var(--transition-fast);
}
#today-calendar-view li:hover, #today-calendar-view > div:hover { background: var(--border-color); }

.alert.alert-warning {
  background: color-mix(in srgb, var(--warning-color) 12%, var(--card-bg));
  border: 1px solid color-mix(in srgb, var(--warning-color) 30%, transparent);
  border-radius: var(--radius-md);
  color: var(--text-primary);
}

/* ---------------------------------------------------------------------- */
/* 6. CALENDAR MODULE                                                      */
/* ---------------------------------------------------------------------- */
.calendar-layout { display: flex; gap: 24px; align-items: flex-start; flex-wrap: wrap; }
.calendar-main-view { flex: 2.5; min-width: 0; }
.calendar-side-panel { flex: 1.5; min-width: 300px; display: flex; flex-direction: column; gap: 20px; }

.calendar-container {
  background: var(--card-bg);
  padding: 22px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-soft);
  max-width: 100%;
}

.calendar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px solid var(--border-color); }
.calendar-header h2 { font-size: var(--heading-sm); font-weight: 800; color: var(--text-primary); margin: 0; text-transform: capitalize; }

.btn-nav-month {
  background: var(--hover-bg); border: 1px solid var(--border-color); border-radius: var(--radius-sm);
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center; cursor: pointer;
  transition: var(--transition-fast); color: var(--text-secondary);
}
.btn-nav-month:hover { background: var(--border-color); color: var(--text-primary); }

.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.calendar-day-name { text-align: center; font-weight: 700; color: var(--text-secondary); font-size: var(--text-2xs); padding-bottom: 12px; text-transform: uppercase; letter-spacing: 0.05em; }

.calendar-day {
  height: 78px;
  background: var(--hover-bg);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start; cursor: pointer;
  transition: var(--transition-fast);
  position: relative; font-weight: 600; color: var(--text-primary);
  padding-top: 8px;
}
.calendar-day:hover { border-color: var(--border-color); }
.calendar-day.other-month { background: transparent; color: var(--text-muted); opacity: 0.4; pointer-events: none; }
.calendar-day.today { background: color-mix(in srgb, var(--info-color) 10%, transparent); border: 1px solid color-mix(in srgb, var(--info-color) 40%, transparent); color: var(--info-color); font-weight: 800; }
.calendar-day.selected { background: var(--primary-color); color: var(--on-gold); }

.event-dot { width: 5px; height: 5px; background-color: var(--danger-color); border-radius: 50%; margin-top: auto; margin-bottom: 10px; opacity: 0; transition: opacity 0.2s ease; }
.calendar-day.has-event .event-dot { opacity: 1; }
.calendar-day.selected .event-dot { background-color: var(--card-bg); }

.today-events-widget { min-height: 380px; background: var(--card-bg); border-radius: var(--radius-lg); border: 1px solid var(--border-color); box-shadow: var(--shadow-soft); padding: 22px; }
.today-events-widget h3 { font-size: var(--heading-sm); font-weight: 800; color: var(--text-primary); border-bottom: 1px solid var(--border-color); padding-bottom: 14px; margin-bottom: 18px; display: flex; align-items: center; gap: 8px; }
.today-events-widget h3::before { content: '\f073'; font-family: "Font Awesome 6 Free"; font-weight: 900; color: var(--text-secondary); }

.event-item {
  background: var(--hover-bg);
  border-left: 3px solid var(--primary-color);
  padding: 14px; margin-bottom: 10px; border-radius: var(--radius-md);
  position: relative; transition: var(--transition-fast); cursor: pointer;
}
.event-item:hover { background: var(--border-color); }
.event-item.important { border-left-color: var(--danger-color); background: color-mix(in srgb, var(--danger-color) 8%, var(--hover-bg)); }
.event-item.important:hover { background: color-mix(in srgb, var(--danger-color) 14%, var(--hover-bg)); }
.event-item.task-event-item { border-left-color: var(--gold); background: color-mix(in srgb, var(--gold) 8%, var(--hover-bg)); border-left-style: dashed; }
.event-item.task-event-item:hover { background: color-mix(in srgb, var(--gold) 14%, var(--hover-bg)); }

.event-time { font-size: var(--text-xs); font-weight: 800; color: var(--text-primary); margin-bottom: 6px; }
.event-item.important .event-time { color: var(--danger-color); }
.event-title { font-size: 1rem; font-weight: 700; color: var(--text-primary); line-height: 1.4; margin-bottom: 6px; }
.event-meta { font-size: var(--text-xs); color: var(--text-secondary); display: flex; align-items: center; gap: 8px; }

.btn-delete-event-mini, .btn-edit-event-mini {
  position: absolute; top: 12px; border: none; background: transparent;
  color: var(--text-muted); cursor: pointer; padding: 6px; border-radius: 50%;
  transition: var(--transition-fast); display: flex; align-items: center; justify-content: center;
}
.btn-delete-event-mini { right: 12px; }
.btn-edit-event-mini { right: 42px; }
.btn-delete-event-mini:hover { color: var(--danger-color); background: color-mix(in srgb, var(--danger-color) 12%, transparent); }
.btn-edit-event-mini:hover { color: var(--info-color); background: color-mix(in srgb, var(--info-color) 12%, transparent); }

/* ---------------------------------------------------------------------- */
/* 7. TOAST NOTIFICATIONS                                                  */
/* ---------------------------------------------------------------------- */
#toast-container { position: fixed; top: 24px; right: 24px; z-index: 99999; display: flex; flex-direction: column; gap: 10px; pointer-events: none; }

.custom-toast {
  background: var(--card-bg);
  min-width: 300px; padding: 14px 18px; border-radius: var(--radius-md);
  box-shadow: var(--shadow-modal);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--success-color);
  display: flex; align-items: center; justify-content: space-between;
  animation: toastSlideIn 0.35s cubic-bezier(0.4, 0, 0.2, 1) forwards;
  font-size: var(--text-base); font-weight: 600; color: var(--text-primary);
  pointer-events: auto;
}
.custom-toast.success { border-left-color: var(--success-color); }
.custom-toast.error { border-left-color: var(--danger-color); }
.custom-toast.warning { border-left-color: var(--warning-color); }
.custom-toast.info { border-left-color: var(--info-color); }

.custom-toast i { font-size: 1.15rem; margin-right: 12px; }
.custom-toast.success i { color: var(--success-color); }
.custom-toast.error i { color: var(--danger-color); }
.custom-toast.warning i { color: var(--warning-color); }
.custom-toast.info i { color: var(--info-color); }

.custom-toast .close-toast {
  cursor: pointer; color: var(--text-muted); margin-left: 15px; transition: var(--transition-fast);
  display: flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%;
}
.custom-toast .close-toast:hover { color: var(--danger-color); background: color-mix(in srgb, var(--danger-color) 12%, transparent); }

@keyframes toastSlideIn { from { transform: translateX(120%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOutRight { to { transform: translateX(120%); opacity: 0; } }

/* ---------------------------------------------------------------------- */
/* 8. CHAT WIDGET                                                          */
/* ---------------------------------------------------------------------- */
.chat-widget-container { position: fixed; bottom: 30px; right: 30px; z-index: 99999; }

.chat-btn {
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--primary-color); color: var(--on-gold); border: none; font-size: 24px;
  box-shadow: var(--shadow-hover);
  cursor: pointer; transition: var(--transition-fast);
  display: flex; align-items: center; justify-content: center;
}
.chat-btn:hover { background: var(--primary-hover); transform: translateY(-2px); }

.chat-badge {
  position: absolute; top: -2px; right: -2px;
  background: var(--danger-color); color: #120F0A;
  font-size: 11px; font-weight: 800; padding: 3px 7px;
  border-radius: var(--radius-pill); border: 2px solid var(--card-bg);
}

.chat-box {
  position: absolute; bottom: 84px; right: 0;
  width: 380px; height: 580px; max-height: 80vh;
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  display: flex; flex-direction: column; overflow: hidden;
  border: 1px solid var(--border-color);
  transform-origin: bottom right;
  animation: chatPopup 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.chat-box.hidden { display: none; }

.chat-header {
  background: var(--primary-color); color: var(--on-gold);
  padding: 14px 18px; font-weight: 700; font-size: var(--heading-sm);
  display: flex; justify-content: space-between; align-items: center;
}
.close-chat-btn {
  background: rgba(26,20,7,0.15); border: none; color: inherit;
  cursor: pointer; font-size: 15px; width: 30px; height: 30px;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  transition: var(--transition-fast);
}
.close-chat-btn:hover { background: var(--danger-color); color: #fff; }

.online-count { font-size: var(--text-2xs); font-weight: 600; background: rgba(26,20,7,0.18); padding: 3px 10px; border-radius: var(--radius-pill); margin-left: 10px; }

.messages-list { flex: 1; padding: 18px; overflow-y: auto; display: flex; flex-direction: column; gap: 10px; }

@keyframes chatPopup { from { opacity: 0; transform: scale(0.92) translateY(12px); } to { opacity: 1; transform: scale(1) translateY(0); } }

.msg-bubble { max-width: 82%; padding: 9px 14px; border-radius: 16px; font-size: 14px; line-height: 1.5; word-wrap: break-word; position: relative; }
.msg-me { align-self: flex-end; background: var(--primary-color); color: var(--on-gold); border-bottom-right-radius: 4px; }
.msg-other { align-self: flex-start; background: var(--hover-bg); color: var(--text-primary); border: 1px solid var(--border-color); border-bottom-left-radius: 4px; }
.msg-name { font-size: 11px; font-weight: 700; color: var(--text-muted); margin-bottom: 4px; display: block; }
.msg-me .msg-name { color: rgba(26,20,7,0.75); text-align: right; }

.msg-bubble.pinned { border: 2px solid var(--warning-color); background: color-mix(in srgb, var(--warning-color) 12%, var(--card-bg)); color: var(--text-primary); }
.pinned-icon { color: var(--warning-color); margin-right: 6px; font-size: var(--text-xs); }
.pinned-msg-item { background: color-mix(in srgb, var(--warning-color) 8%, var(--card-bg)); border-left: 4px solid var(--warning-color); padding: 12px; margin-bottom: 12px; border-radius: var(--radius-sm); font-size: 0.9em; border: 1px solid var(--border-color); }

.reply-quote { background: var(--hover-bg); border-left: 3px solid var(--primary-color); padding: 6px 10px; margin-bottom: 8px; border-radius: 4px; font-size: var(--text-xs); color: var(--text-secondary); display: flex; flex-direction: column; }
.msg-me .reply-quote { background: rgba(26,20,7,0.12); border-left-color: rgba(26,20,7,0.6); color: rgba(26,20,7,0.85); }

.msg-time { font-size: var(--text-2xs); color: var(--text-muted); margin-top: 5px; display: block; text-align: right; }
.msg-me .msg-time { color: rgba(26,20,7,0.65); font-weight: 600; }

.msg-container { position: relative; }
.msg-actions { display: inline-block; margin-left: 10px; opacity: 0; transition: opacity 0.2s; }
.msg-container:hover .msg-actions { opacity: 1; }

.pin-btn, .emoji-btn { cursor: pointer; font-size: var(--text-2xs); color: var(--text-secondary); background: var(--hover-bg); padding: 4px 8px; border-radius: var(--radius-pill); border: 1px solid var(--border-color); transition: var(--transition-fast); }
.pin-btn:hover, .emoji-btn:hover { background: var(--primary-color); color: var(--on-gold); border-color: var(--primary-color); }

/* Popup thả cảm xúc: chưa từng có CSS, trước đây hiện ra như hàng emoji trần không khung/định vị */
.action-btn-container { position: relative; display: inline-flex; }
.emoji-picker-popup {
  position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%);
  display: flex; gap: 4px; padding: 8px; z-index: 500;
  background: var(--card-bg); border: 1px solid var(--border-color);
  border-radius: var(--radius-pill); box-shadow: var(--shadow-modal);
}
.emoji-picker-popup .emoji-btn {
  font-size: 18px; line-height: 1; padding: 4px 6px; background: transparent; border: none;
  border-radius: 50%; transition: var(--transition-fast);
}
.emoji-picker-popup .emoji-btn:hover { background: var(--hover-bg); transform: scale(1.15); }

.chat-input-area { padding: 14px; border-top: 1px solid var(--border-color); display: flex; gap: 10px; background: var(--card-bg); }
.chat-input-area input { flex: 1; padding: 10px 16px; border: 1px solid var(--border-color); border-radius: var(--radius-pill); outline: none; background: var(--hover-bg); transition: var(--transition-fast); font-size: var(--text-base); }
.chat-input-area input:focus { background: var(--card-bg); border-color: var(--gold); box-shadow: 0 0 0 3px color-mix(in srgb, var(--gold) 28%, transparent); }
.chat-input-area button { background: var(--primary-color); color: var(--on-gold); border: none; width: 42px; height: 42px; border-radius: 50%; cursor: pointer; transition: var(--transition-fast); display: flex; align-items: center; justify-content: center; font-size: 15px; }
.chat-input-area button:hover:not(:disabled) { background: var(--primary-hover); }
.chat-input-area button:disabled { background: var(--text-muted); cursor: not-allowed; }

#reply-preview-bar { background: var(--hover-bg); padding: 10px 15px; border-top: 1px solid var(--border-color); display: none; justify-content: space-between; align-items: center; font-size: var(--text-sm); border-left: 4px solid var(--primary-color); }

/* ---------------------------------------------------------------------- */
/* 9. MODALS, DROPDOWNS & UTILITIES                                        */
/* ---------------------------------------------------------------------- */
.dropdown-menu {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-modal);
  padding: 6px;
}
.dropdown-item, .dropdown-item-text { color: var(--text-primary); border-radius: var(--radius-sm); transition: var(--transition-fast); padding: 8px 14px; }
.dropdown-item:hover { background: var(--hover-bg); }
.dropdown-header { color: var(--text-muted); }
.dropdown-divider { border-color: var(--border-color); }

.custom-modal, .modal {
  display: none; position: fixed; z-index: 9999; left: 0; top: 0;
  width: 100%; height: 100%; overflow: auto;
  background-color: rgba(15, 17, 20, 0.45);
  align-items: center; justify-content: center;
}

.modal-content {
  margin: auto; padding: 28px;
  border-radius: var(--radius-lg); width: 90%; max-width: 580px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-modal);
  animation: modalPop 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalPop { from { transform: scale(0.94); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.close-btn {
  float: right; font-size: 24px; font-weight: bold; cursor: pointer;
  color: var(--text-secondary); transition: var(--transition-fast);
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
}
.close-btn:hover { color: var(--danger-color); background: color-mix(in srgb, var(--danger-color) 12%, transparent); }

.status-message { padding: 14px; border-radius: var(--radius-md); font-weight: 600; margin-top: 14px; display: flex; align-items: center; gap: 10px; }
.success-message { background-color: color-mix(in srgb, var(--success-color) 12%, var(--card-bg)); border: 1px solid color-mix(in srgb, var(--success-color) 30%, transparent); color: var(--success-color); }
.error-message { background-color: color-mix(in srgb, var(--danger-color) 12%, var(--card-bg)); border: 1px solid color-mix(in srgb, var(--danger-color) 30%, transparent); color: var(--danger-color); }

/* ---------------------------------------------------------------------- */
/* 10. TASK MODULE                                                         */
/* ---------------------------------------------------------------------- */
.task-toolbar {
  display: flex; gap: 12px; align-items: center; margin-bottom: 20px; flex-wrap: wrap;
  background: var(--card-bg);
  padding: 14px 18px; border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.view-btn {
  background: var(--hover-bg); border: 1px solid var(--border-color); color: var(--text-secondary);
  padding: 7px 15px; border-radius: var(--radius-sm); cursor: pointer; font-weight: 600; font-size: var(--text-sm);
  transition: var(--transition-fast);
}
.view-btn:hover { background: var(--border-color); color: var(--text-primary); }
.view-btn.active { background: var(--primary-color); color: var(--on-gold); border-color: var(--primary-color); }

.task-card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; }

.task-card {
  background: var(--card-bg);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--primary-color);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex; flex-direction: column; gap: 12px; position: relative;
}
.task-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }

.task-card .card-row { display: flex; align-items: center; justify-content: space-between; font-size: var(--text-sm); color: var(--text-primary); font-weight: 500; }
.task-card .card-label { font-weight: 700; color: var(--text-muted); font-size: var(--text-2xs); min-width: 80px; text-transform: uppercase; letter-spacing: 0.04em; }
.task-card .task-title { font-size: 1.1rem; font-weight: 800; color: var(--text-primary); margin: 0 0 4px 0; line-height: 1.4; }

.multiselect-container { position: relative; width: 100%; }
.selectBox { position: relative; cursor: pointer; }
.selectBox select {
  width: 100%; font-weight: 600; color: var(--text-primary); cursor: pointer;
  background: var(--hover-bg); border: 1px solid var(--border-color);
  padding: 10px 14px; border-radius: var(--radius-sm); transition: var(--transition-fast); appearance: none;
}
.selectBox:hover select { border-color: var(--text-secondary); }
.overSelect { position: absolute; left: 0; right: 0; top: 0; bottom: 0; }

/* Picker "Gán người" trong thanh chọn nhiều — không kế thừa width:100% của .multiselect-container
   gốc (được thiết kế cho form dọc), vì thanh này là hàng ngang. */
.bulk-assignee-picker { width: 160px; }
.bulk-assignee-picker .selectBox select { width: 100%; }

#checkboxes, #event-attendee-checkboxes, #blocker-checkboxes, #comment-mention-checkboxes, #bulk-assignee-checkboxes {
  display: none; position: absolute; width: 100%; margin-top: 6px; padding: 6px;
  background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-md);
  box-shadow: var(--shadow-modal); max-height: 240px; overflow-y: auto; z-index: 1050;
  animation: dropdownPop 0.15s ease;
}
@keyframes dropdownPop { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: translateY(0); } }

#checkboxes label, #event-attendee-checkboxes label, #blocker-checkboxes label, #comment-mention-checkboxes label, #bulk-assignee-checkboxes label { display: flex; align-items: center; padding: 9px 12px; cursor: pointer; border-radius: var(--radius-sm); color: var(--text-primary); font-weight: 500; transition: var(--transition-fast); }
#checkboxes label:hover, #event-attendee-checkboxes label:hover, #blocker-checkboxes label:hover, #comment-mention-checkboxes label:hover, #bulk-assignee-checkboxes label:hover { background-color: var(--hover-bg); }
#checkboxes input[type="checkbox"], #event-attendee-checkboxes input[type="checkbox"], #blocker-checkboxes input[type="checkbox"], #comment-mention-checkboxes input[type="checkbox"], #bulk-assignee-checkboxes input[type="checkbox"] { margin-right: 12px; width: 17px; height: 17px; cursor: pointer; accent-color: var(--primary-color); }

/* --- Badges --- */
.status-badge, .priority-badge {
  display: block; width: 100%; text-align: center; color: var(--on-gold);
  padding: 7px 0; border-radius: var(--radius-pill); font-size: var(--text-2xs); font-weight: 700;
  letter-spacing: 0.03em; cursor: pointer; transition: var(--transition-fast);
}
.status-badge:hover, .priority-badge:hover { filter: brightness(1.08); }

/* success/danger/warning/info không được canh sáng-vừa-ở-cả-2-theme như sage/gold/terracotta
   (chúng được hiệu chỉnh để dùng làm màu CHỮ trên nền sáng, không phải nền đặc), nên badge trạng thái
   dùng pattern tint-nhẹ + chữ màu bão hòa (giống .pill.green/.pill.red bên web kế toán) thay vì
   nền đặc + chữ on-gold cố định — vừa đúng ngữ nghĩa (Done=xanh lá, Stuck=đỏ) vừa đảm bảo tương phản
   ở cả 2 theme mà không cần token riêng cho từng theme. */
.bg-done { background: color-mix(in srgb, var(--success-color) 20%, var(--card-bg)); color: var(--success-color); }
.bg-working { background: color-mix(in srgb, var(--warning-color) 20%, var(--card-bg)); color: var(--warning-color); }
.bg-stuck { background: color-mix(in srgb, var(--danger-color) 20%, var(--card-bg)); color: var(--danger-color); }
.bg-not-started { background: var(--hover-bg); color: var(--text-muted); }

.bg-critical { background: color-mix(in srgb, var(--danger-color) 28%, var(--card-bg)); color: var(--danger-color); font-weight: 800; }
.bg-high { background: color-mix(in srgb, var(--warning-color) 20%, var(--card-bg)); color: var(--warning-color); }
.bg-medium { background: color-mix(in srgb, var(--info-color) 18%, var(--card-bg)); color: var(--info-color); }
.bg-low { background: var(--hover-bg); color: var(--text-muted); }

.due-badge {
  display: inline-block; margin-left: 6px; padding: 2px 8px;
  border-radius: var(--radius-pill); font-size: var(--text-2xs); font-weight: 700;
  letter-spacing: 0.02em; white-space: nowrap; vertical-align: middle;
}
.due-badge.overdue { background: color-mix(in srgb, var(--danger-color) 20%, var(--card-bg)); color: var(--danger-color); }
.due-badge.due-soon { background: color-mix(in srgb, var(--warning-color) 20%, var(--card-bg)); color: var(--warning-color); }

/* --- Subtask + kéo-thả sắp xếp task --- */
.task-card-subtask { margin-left: 24px; opacity: 0.92; background: var(--hover-bg); }
tr[draggable="true"], .task-card[draggable="true"] { cursor: grab; }
tr[draggable="true"]:active, .task-card[draggable="true"]:active { cursor: grabbing; }
.dragging-task { opacity: 0.4; }

/* --- Modal Bình luận & Lịch sử task --- */
.task-activity-tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border-color); margin-bottom: 14px; }
.task-activity-tab {
  background: none; border: none; padding: 8px 16px; font-weight: 600; color: var(--text-muted);
  cursor: pointer; border-bottom: 2px solid transparent; transition: var(--transition-fast);
}
.task-activity-tab:hover { color: var(--text-primary); }
.task-activity-tab.active { color: var(--gold); border-bottom-color: var(--gold); }
.task-activity-panel { max-height: 320px; overflow-y: auto; }
.task-comment-list, .task-history-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 8px; }
.task-comment-item, .task-history-item {
  background: var(--hover-bg); border-radius: var(--radius-sm); padding: 10px 12px; border: 1px solid var(--border-color);
}
.task-comment-meta, .task-history-meta { margin-bottom: 4px; }
.task-comment-content { color: var(--text-primary); white-space: pre-wrap; word-break: break-word; }
.task-history-content { color: var(--text-secondary); }

/* --- Bảng tìm kiếm toàn cục (Ctrl/Cmd + K) --- */
.search-palette {
  position: fixed; inset: 0; z-index: 20000;
  display: flex; align-items: flex-start; justify-content: center;
  padding: 12vh 16px 16px;
  background: rgba(0, 0, 0, 0.55); backdrop-filter: blur(3px);
}
.search-palette-box {
  width: 100%; max-width: 620px; max-height: 70vh; display: flex; flex-direction: column;
  background: var(--card-bg); border: 1px solid var(--border-color);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-modal); overflow: hidden;
  animation: dropdownPop 0.15s ease;
}
.search-palette-input-row {
  display: flex; align-items: center; gap: 10px; padding: 14px 16px;
  border-bottom: 1px solid var(--border-color); color: var(--text-secondary);
}
.search-palette-input-row input {
  flex: 1; border: none; outline: none; background: transparent;
  font-size: 1.05rem; font-family: inherit; color: var(--text-primary);
}
.search-palette-input-row:focus-within { box-shadow: inset 0 -2px 0 var(--gold); }
.search-palette-esc {
  font-size: var(--text-2xs); padding: 2px 7px; border-radius: var(--radius-sm);
  background: var(--hover-bg); border: 1px solid var(--border-color); color: var(--text-muted);
}
.search-palette-results { overflow-y: auto; padding: 6px; }
.search-palette-hint { padding: 22px 16px; text-align: center; color: var(--text-muted); font-size: var(--text-sm); }
.search-palette-group {
  padding: 8px 12px 4px; font-size: var(--text-2xs); font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted);
}
.search-palette-item {
  display: flex; align-items: center; gap: 12px; padding: 9px 12px;
  border-radius: var(--radius-sm); cursor: pointer; color: var(--text-primary);
}
.search-palette-item.is-active { background: color-mix(in srgb, var(--gold) 14%, var(--card-bg)); }
.search-palette-item > i { color: var(--text-muted); width: 16px; text-align: center; }
.search-palette-item-text { min-width: 0; flex: 1; }
.search-palette-item-title { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.search-palette-item-sub { font-size: var(--text-xs); color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* --- Chấm báo trạng thái đồng bộ trực tiếp --- */
.realtime-indicator {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--text-muted); opacity: 0.45; vertical-align: middle;
  margin-left: 2px; transition: var(--transition-fast);
}
.realtime-indicator.is-live {
  background: var(--success-color); opacity: 1;
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--success-color) 22%, transparent);
}

/* --- Bulk select toolbar (Task) --- */
.bulk-action-bar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  background: color-mix(in srgb, var(--gold) 10%, var(--card-bg)); border: 1px solid color-mix(in srgb, var(--gold) 30%, transparent);
  border-radius: var(--radius-md); padding: 10px 14px; margin-bottom: 12px;
}
#bulk-select-toggle.active { background: var(--gold); color: var(--on-gold); border-color: var(--gold); }

/* --- Tuổi mục trong thùng rác --- */
.trash-age { font-size: var(--text-2xs); color: var(--text-muted); }
.trash-age.is-old { color: var(--danger-color); font-weight: 700; }

/* --- Thanh khối lượng công việc --- */
.workload-bar {
  height: 4px; margin-top: 5px; border-radius: var(--radius-pill);
  background: var(--hover-bg); overflow: hidden; max-width: 220px;
}
.workload-bar > span { display: block; height: 100%; background: var(--gold); border-radius: inherit; }

/* --- Danh sách kiểm trong task --- */
.task-checklist-list { max-height: 300px; overflow-y: auto; }
.checklist-item {
  display: flex; align-items: center; gap: 10px; padding: 7px 10px; margin-bottom: 6px;
  background: var(--hover-bg); border: 1px solid var(--border-color); border-radius: var(--radius-sm);
}
.checklist-item.is-done .checklist-item-text { text-decoration: line-through; color: var(--text-muted); }
.checklist-item-text { color: var(--text-primary); }
.checklist-item input[type="checkbox"] { width: 16px; height: 16px; cursor: pointer; accent-color: var(--success-color); }

/* --- Chip nhãn công việc (màu suy ra từ tên nhãn qua --label-hue) --- */
.task-label-chip {
  display: inline-block; margin: 3px 4px 0 0; padding: 1px 9px;
  border-radius: var(--radius-pill); font-size: var(--text-2xs); font-weight: 700;
  background: hsl(var(--label-hue, 40) 60% 50% / 0.16);
  color: hsl(var(--label-hue, 40) 70% 38%);
  border: 1px solid hsl(var(--label-hue, 40) 60% 50% / 0.32);
  white-space: nowrap; vertical-align: middle;
}
[data-theme="dark"] .task-label-chip { color: hsl(var(--label-hue, 40) 70% 72%); }
.kanban-card-labels { margin-bottom: 6px; }

/* --- Badge tiến độ danh sách kiểm --- */
.checklist-badge {
  display: inline-block; margin-left: 6px; padding: 2px 8px;
  border-radius: var(--radius-pill); font-size: var(--text-2xs); font-weight: 700;
  background: var(--hover-bg); color: var(--text-secondary);
  white-space: nowrap; vertical-align: middle;
}
.checklist-badge.is-complete {
  background: color-mix(in srgb, var(--success-color) 16%, var(--card-bg));
  color: var(--success-color);
}

/* --- Badge "Bị chặn" (dependency) --- */
.blocked-badge {
  display: inline-block; margin-left: 6px; padding: 2px 8px;
  border-radius: var(--radius-pill); font-size: var(--text-2xs); font-weight: 700;
  background: color-mix(in srgb, var(--danger-color) 16%, var(--card-bg)); color: var(--danger-color);
  white-space: nowrap; vertical-align: middle;
}

/* --- Board Kanban (Task) --- */
.kanban-board { display: flex; gap: 14px; overflow-x: auto; padding-bottom: 8px; }
.kanban-column {
  flex: 0 0 280px; background: var(--hover-bg); border: 1px solid var(--border-color);
  border-radius: var(--radius-md); display: flex; flex-direction: column; max-height: 70vh;
  transition: var(--transition-fast);
}
.kanban-column-dragover { border-color: var(--gold); box-shadow: 0 0 0 2px color-mix(in srgb, var(--gold) 30%, transparent) inset; }
.kanban-column-header {
  display: flex; justify-content: space-between; align-items: center; padding: 10px 12px;
  font-weight: 700; border-bottom: 1px solid var(--border-color); color: var(--text-primary);
}
.kanban-count {
  background: var(--card-bg); border-radius: var(--radius-pill); padding: 1px 9px;
  font-size: var(--text-2xs); color: var(--text-muted);
}
.kanban-column-body { padding: 10px; display: flex; flex-direction: column; gap: 10px; overflow-y: auto; }
.kanban-card {
  background: var(--card-bg); border: 1px solid var(--border-color); border-radius: var(--radius-sm);
  padding: 10px 12px; cursor: grab; box-shadow: var(--shadow-1); transition: var(--transition-fast);
}
.kanban-card:hover { box-shadow: var(--shadow-2); transform: translateY(-1px); }
.kanban-card:active { cursor: grabbing; }
.kanban-card-title { font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.kanban-card-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.kanban-parent-label { font-size: var(--text-2xs); color: var(--text-muted); margin-bottom: 4px; }

/* --- Cột mốc dự án (Milestones) --- */
.milestone-list { display: flex; flex-direction: column; gap: 8px; max-height: 320px; overflow-y: auto; margin-bottom: 8px; }
.milestone-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 12px;
  background: var(--hover-bg); border: 1px solid var(--border-color); border-radius: var(--radius-sm);
}
.milestone-item.milestone-done .milestone-title { text-decoration: line-through; color: var(--text-muted); }
.milestone-title { color: var(--text-primary); font-weight: 500; }

/* --- SweetAlert2 --- */
div:where(.swal2-container) { z-index: 99999 !important; }
.swal2-title, .swal2-html-container { color: var(--text-primary) !important; }
.swal2-popup { background: var(--card-bg) !important; }

/* ---------------------------------------------------------------------- */
/* 11. DARK MODE — TARGETED FIXES                                          */
/* Most components already flip automatically via the variable set above. */
/* Only genuine special cases (3rd-party libs / Bootstrap utility classes  */
/* that don't consume our variables) need explicit overrides here.        */
/* ---------------------------------------------------------------------- */
[data-theme="dark"] .bg-white, [data-theme="dark"] .bg-light, [data-theme="dark"] .msg-other {
  background-color: var(--hover-bg) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color) !important;
}

[data-theme="dark"] .flatpickr-day.selected,
[data-theme="dark"] .flatpickr-day.startRange,
[data-theme="dark"] .flatpickr-day.endRange,
[data-theme="dark"] .fc-day-today {
  background-color: var(--primary-color) !important;
  color: var(--on-gold) !important;
  border-color: var(--primary-color) !important;
}

[data-theme="dark"] .btn-check:checked + .btn,
[data-theme="dark"] .nav-pills .nav-link.active {
  background-color: var(--primary-color) !important;
  color: var(--on-gold) !important;
}

/* ---------------------------------------------------------------------- */
/* 12. RESPONSIVE                                                          */
/* ---------------------------------------------------------------------- */
@media (max-width: 992px) {
  .dashboard-widgets { flex-direction: column; }
  .main-widgets, .side-widgets { width: 100%; min-width: 0; flex: none; }

  .calendar-layout { flex-direction: column; }
  .calendar-side-panel, .calendar-main-view { width: 100%; flex: none; }
}

@media (max-width: 768px) {
  #main-content { padding: 20px; }
  #app-header { padding: 0 16px; gap: 10px; }
  .logo { font-size: 18px; white-space: nowrap; }
  .user-info { gap: 6px; min-width: 0; }
  /* Username is injected as a bare text node next to the icon — font-size:0 is the only CSS-only way to hide it */
  #user-display span { display: none; }
  #user-display { padding: 6px 8px; font-size: 0; gap: 0; }
  #user-display i { font-size: 20px; }
  #user-display.dropdown-toggle::after { display: none; }
  .user-info > .btn-link, .user-info .dropdown > .btn-link { padding: 4px 8px; }
  #logout-btn { padding: 7px 12px; font-size: 13px; white-space: nowrap; }
  #theme-toggle-btn { width: 36px; height: 36px; }
  #auto-theme-btn { padding: 5px 8px !important; font-size: 9px !important; }

  #right-sidebar { width: calc(100% - 32px); right: 16px; left: 16px; top: calc(var(--header-height) + 12px); }

  .task-card-grid { grid-template-columns: 1fr; }

  .chat-box { width: calc(100vw - 32px); right: -14px; }
  .chat-widget-container { bottom: 16px; right: 16px; }

  .modal-content { width: 94%; padding: 20px; }

  .card { padding: 18px; }

  #toast-container { left: 12px; right: 12px; top: 12px; }
  .custom-toast { min-width: 0; width: 100%; }
}

@media (max-width: 576px) {
  /* Header must fit 8 controls at 375px: compact everything, never scroll sideways */
  body { overflow-x: clip; }
  #app-header { padding: 0 10px; gap: 6px; }
  .logo { font-size: 16px; letter-spacing: 0; }
  .user-info { gap: 2px; }
  .user-info > .btn-link, .user-info .dropdown > .btn-link { padding: 4px 5px; }
  .user-info .fs-5 { font-size: 1.05rem !important; }
  #user-display { padding: 4px 5px; }
  #logout-btn { padding: 6px; width: 32px; height: 32px; font-size: 13px; gap: 0; }
  #logout-btn .logout-btn-label { display: none; }
  #theme-toggle-btn { width: 32px; height: 32px; font-size: 13px; }
  #auto-theme-btn { padding: 4px 6px !important; font-size: 8.5px !important; }

  .calendar-day { height: 56px; font-size: 0.85rem; }
  .calendar-grid { gap: 4px; }
  .calendar-day-name { font-size: 0.65rem; padding-bottom: 8px; }

  .task-toolbar { padding: 10px 12px; }
  .view-btn { padding: 6px 10px; font-size: 0.8rem; }

  .data-table th, .data-table td { padding: 10px 12px; font-size: 13.5px; }

  .chat-box { height: 100vh; max-height: 100vh; bottom: 0; right: 0; border-radius: 0; position: fixed; top: 0; width: 100vw; }
}

/* ==========================================================================
   13. AUTH PAGES (Login / Forgot / Nickname / Reset / Change Nickname)
   One shared shell instead of ~90 duplicated lines per page.
   ========================================================================== */
:root { --login-bg-image: none; }

html, body.auth-page {
  height: 100%; width: 100%; margin: 0;
}
body.auth-page {
  display: flex; justify-content: center; align-items: center;
  background-color: #120F0A;
  font-family: var(--font-body);
  position: relative; overflow: hidden;
  color: #F4EFE6;
  background-image: var(--login-bg-image);
  background-size: cover; background-position: center; background-repeat: no-repeat;
  transition: background-image 0.5s ease-in-out;
}

/* Gold vignette against the dark hero backdrop — same language as the accounting app's .gate glow */
.auth-stars, .auth-twinkling { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.auth-stars { background: radial-gradient(ellipse at 50% 20%, rgba(201,168,76,0.16) 0%, #120F0A 70%); z-index: 0; }
.auth-twinkling { background: transparent; z-index: 1; opacity: 0; }
body.has-custom-bg .auth-stars, body.has-custom-bg .auth-twinkling { display: none !important; }
body.has-custom-bg .auth-card { background: rgba(253, 250, 246, 0.96); }

.auth-theme-controls { position: fixed; top: 20px; right: 20px; z-index: 1000; display: flex; gap: 10px; }
.auth-btn-control {
  width: 42px; height: 42px; border-radius: 50%; border: 0.5px solid rgba(244,239,230,0.18);
  background: rgba(244,239,230,0.06); color: #F4EFE6; cursor: pointer; transition: var(--transition-fast);
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.auth-btn-control:hover { background: var(--gold); border-color: var(--gold); color: #120F0A; }

.auth-card {
  width: 100%; max-width: 400px; padding: 44px 36px;
  background: var(--card-bg); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  position: relative; z-index: 10; color: var(--text-primary);
  transition: var(--transition-smooth);
}
.auth-card.auth-card-wide { max-width: 440px; }
.auth-card h2 { font-weight: 600; color: var(--text-primary); margin-bottom: 4px; text-align: center; }
.auth-subtitle { text-align: center; color: var(--text-secondary); margin-bottom: 22px; font-family: var(--font-mono); letter-spacing: 0.06em; text-transform: uppercase; font-size: 0.75rem; }

.auth-input-group { position: relative; margin-bottom: 16px; }
.auth-input-icon { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--text-muted); z-index: 2; }
.auth-input-group .form-control {
  padding-left: 44px; height: 48px; border-radius: var(--radius-md);
  background: var(--hover-bg); border: 1px solid transparent;
}
.auth-input-group .form-control:focus { background: var(--card-bg); border-color: var(--gold); box-shadow: 0 0 0 3px color-mix(in srgb, var(--gold) 28%, transparent); }

.auth-btn-submit {
  border-radius: var(--radius-md); height: 48px; font-weight: 700;
  background: linear-gradient(135deg, var(--gold), var(--gold-light)); border: none; color: var(--on-gold); width: 100%;
  box-shadow: var(--shadow-gold);
  transition: var(--transition-fast);
}
.auth-btn-submit:hover:not(:disabled) { filter: brightness(1.06); }
.auth-btn-submit:disabled { opacity: 0.6; cursor: not-allowed; }

.auth-btn-secondary {
  border-radius: var(--radius-md); height: 44px; width: 100%; margin-top: 12px;
  background: var(--hover-bg); border: 1px solid var(--border-color); color: var(--text-secondary);
}
.auth-btn-secondary:hover { background: var(--border-color); color: var(--text-primary); }

.auth-avatar-preview {
  width: 108px; height: 108px; border-radius: 50%; margin: 0 auto 18px; object-fit: cover;
  border: 3px solid var(--border-color); display: block;
}

.auth-success-view { text-align: center; display: none; animation: auth-fade-in 0.4s; }
.auth-success-icon { font-size: 54px; color: var(--success-color); margin-bottom: 16px; }
@keyframes auth-fade-in { from { opacity: 0; } to { opacity: 1; } }

.auth-error-message { color: var(--danger-color); text-align: center; margin-top: 10px; font-size: var(--text-sm); }

/* Auth pages reuse the shared toast component but need it centered top for this dark hero layout */
body.auth-page #toast-container { left: 50%; right: auto; top: 20px; transform: translateX(-50%); }
body.auth-page .custom-toast { min-width: 300px; }

@media (max-width: 480px) {
  .auth-card { max-width: calc(100vw - 32px); padding: 32px 22px; }
  .auth-theme-controls { top: 12px; right: 12px; }
}