@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+Thai:wght@300;400;500;600;700&display=swap');

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: #1a2236;
  --bg-card-hover: #1e2a42;
  --bg-input: #0d1525;
  --border: #2a3550;
  --border-focus: #3b82f6;
  --text-primary: #e8ecf4;
  --text-secondary: #8896b3;
  --text-muted: #5a6a8a;
  --accent-blue: #3b82f6;
  --accent-blue-glow: rgba(59,130,246,.25);
  --accent-gold: #f59e0b;
  --accent-gold-glow: rgba(245,158,11,.2);
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-purple: #8b5cf6;
  --accent-cyan: #06b6d4;
  --gradient-blue: linear-gradient(135deg,#3b82f6,#2563eb);
  --gradient-gold: linear-gradient(135deg,#f59e0b,#d97706);
  --gradient-green: linear-gradient(135deg,#10b981,#059669);
  --gradient-red: linear-gradient(135deg,#ef4444,#dc2626);
  --shadow-sm: 0 1px 3px rgba(0,0,0,.4);
  --shadow-md: 0 4px 12px rgba(0,0,0,.5);
  --shadow-lg: 0 8px 30px rgba(0,0,0,.6);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --transition: .25s cubic-bezier(.4,0,.2,1);
}

body.light-theme {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f1f5f9;
  --bg-input: #ffffff;
  --border: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:14px;scroll-behavior:smooth}
body{font-family:'Noto Sans Thai',sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;overflow-x:hidden;transition:background-color var(--transition), color var(--transition)}

/* Scrollbar */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg-secondary)}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--accent-blue)}

/* Layout */
.app-layout{display:flex;min-height:100vh}
.sidebar{width:260px;background:var(--bg-secondary);border-right:1px solid var(--border);display:flex;flex-direction:column;position:fixed;top:0;left:0;bottom:0;z-index:100;transition:width var(--transition), transform var(--transition), background var(--transition)}
.sidebar.collapsed{width:70px}
.sidebar-header{padding:20px;border-bottom:1px solid var(--border);text-align:center;transition:all var(--transition)}
.sidebar-header h1{font-size:1.4rem;font-weight:700;background:linear-gradient(135deg,var(--accent-blue),var(--accent-gold));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;white-space:nowrap;overflow:hidden;transition:all var(--transition)}
.sidebar-header p{font-size:.75rem;color:var(--text-muted);margin-top:4px;white-space:nowrap;overflow:hidden;transition:all var(--transition)}
.sidebar.collapsed .sidebar-header h1{font-size:1rem;opacity:0}
.sidebar.collapsed .sidebar-header p{opacity:0;height:0;margin:0}
.sidebar-nav{flex:1;padding:12px;overflow-y:auto;overflow-x:hidden}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 16px;border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition);font-size:.9rem;font-weight:500;margin-bottom:2px;border:1px solid transparent;white-space:nowrap}
.nav-item:hover{background:var(--bg-card);color:var(--text-primary)}
.nav-item.active{background:var(--accent-blue-glow);color:var(--accent-blue);border-color:rgba(59,130,246,.3)}
.nav-item .icon{font-size:1.2rem;min-width:24px;text-align:center;transition:all var(--transition)}
.sidebar.collapsed .nav-item{padding:11px 0;justify-content:center}
.sidebar.collapsed .nav-item .nav-text,
.sidebar.collapsed .btn-text,
.sidebar.collapsed .version-text {opacity:0;width:0;display:none}
.main-content{margin-left:260px;flex:1;padding:24px 32px;min-height:100vh;min-width:0;transition:margin-left var(--transition)}
.sidebar.collapsed ~ .main-content{margin-left:70px}

/* Page Header */
.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;flex-wrap:wrap;gap:12px}
.page-header h2{font-size:1.5rem;font-weight:700}
.page-header h2 .icon{margin-right:8px}

/* Cards */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;box-shadow:var(--shadow-sm);transition:all var(--transition)}
.card:hover{box-shadow:var(--shadow-md)}
.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.card-title{font-size:1.05rem;font-weight:600}

/* Stat Cards */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:24px}
.stat-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:20px;position:relative;overflow:hidden;transition:all var(--transition)}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.stat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px}
.stat-card.blue::before{background:var(--gradient-blue)}
.stat-card.gold::before{background:var(--gradient-gold)}
.stat-card.green::before{background:var(--gradient-green)}
.stat-card.red::before{background:var(--gradient-red)}
.stat-card .stat-icon{font-size:2rem;margin-bottom:8px}
.stat-card .stat-value{font-size:1.8rem;font-weight:700}
.stat-card .stat-label{color:var(--text-secondary);font-size:.85rem;margin-top:4px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border:none;border-radius:var(--radius-sm);font-family:inherit;font-size:.85rem;font-weight:600;cursor:pointer;transition:all var(--transition);text-decoration:none}
.btn-primary{background:var(--gradient-blue);color:#fff;box-shadow:0 2px 8px var(--accent-blue-glow)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 16px var(--accent-blue-glow)}
.btn-success{background:var(--gradient-green);color:#fff}
.btn-success:hover{transform:translateY(-1px)}
.btn-danger{background:var(--gradient-red);color:#fff}
.btn-danger:hover{transform:translateY(-1px)}
.btn-gold{background:var(--gradient-gold);color:#fff}
.btn-gold:hover{transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--bg-card);color:var(--text-primary)}
.btn-sm{padding:5px 12px;font-size:.8rem}
.btn-icon{width:32px;height:32px;padding:0;display:inline-flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:transparent;border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;transition:all var(--transition)}
.btn-icon:hover{background:var(--bg-card-hover);color:var(--text-primary)}
.btn-icon.danger:hover{color:var(--accent-red);border-color:var(--accent-red)}

/* Form */
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:.85rem;font-weight:500;color:var(--text-secondary);margin-bottom:5px}
.form-control{width:100%;padding:9px 14px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit;font-size:.9rem;transition:border-color var(--transition)}
.form-control:focus{outline:none;border-color:var(--accent-blue);box-shadow:0 0 0 3px var(--accent-blue-glow)}
select.form-control{cursor:pointer}
textarea.form-control{resize:vertical;min-height:80px}

/* Table */
.table-container{overflow-x:auto;border-radius:var(--radius-md);border:1px solid var(--border)}
table{width:100%;border-collapse:collapse}
th{padding:10px 14px;text-align:left;font-size:.8rem;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;background:var(--bg-secondary);border-bottom:1px solid var(--border);white-space:nowrap}
td{padding:10px 14px;border-bottom:1px solid rgba(42,53,80,.5);font-size:.88rem;vertical-align:middle}
tr:hover td{background:rgba(59,130,246,.04)}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.75rem;font-weight:600}
.badge-blue{background:rgba(59,130,246,.15);color:var(--accent-blue)}
.badge-green{background:rgba(16,185,129,.15);color:var(--accent-green)}
.badge-gold{background:rgba(245,158,11,.15);color:var(--accent-gold)}
.badge-red{background:rgba(239,68,68,.15);color:var(--accent-red)}
.badge-purple{background:rgba(139,92,246,.15);color:var(--accent-purple)}

/* Spreadsheet-like table */
.spread-table{border-collapse:collapse;width:100%}
.spread-table th,.spread-table td{border:1px solid var(--border);padding:6px 10px;text-align:center;font-size:.82rem;min-width:100px}
.spread-table th{background:var(--bg-secondary);color:var(--text-secondary);position:sticky;top:0;z-index:2}
.spread-table th.corner{position:sticky;left:0;z-index:3}
.spread-table td.emp-name{position:sticky;left:0;background:var(--bg-card);text-align:left;font-weight:600;min-width:140px;z-index:1;white-space:nowrap}
.spread-table td.holiday{background:rgba(239,68,68,.08)!important;cursor:not-allowed}
.spread-table td.weekend{background:rgba(139,92,246,.08)!important;cursor:not-allowed}
.spread-table td.today{box-shadow:inset 0 0 0 2px var(--accent-blue)}
.spread-table td.has-data{background:rgba(16,185,129,.06)}
.cell-input{width:100%;background:transparent;border:none;color:var(--text-primary);font-family:inherit;font-size:.82rem;text-align:center;padding:2px}
.cell-input:focus{outline:none;background:var(--bg-input);border-radius:3px}
.cell-tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:.75rem;font-weight:500;margin:1px;white-space:nowrap}

/* Modal */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.65);backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:all .3s}
.modal-overlay.active{opacity:1;visibility:visible}
.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);width:90%;max-width:520px;max-height:85vh;overflow-y:auto;box-shadow:var(--shadow-lg);transform:scale(.9);transition:transform .3s}
.modal.modal-lg{max-width:800px}
.modal.modal-xl{max-width:1050px}
.modal.modal-fullscreen{width:98%;max-width:98%;height:95vh;max-height:95vh;display:flex;flex-direction:column}
.modal.modal-fullscreen .modal-body{flex:1;overflow:hidden;display:flex;flex-direction:column;padding:16px 22px}
.modal-overlay.active .modal{transform:scale(1)}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:18px 22px;border-bottom:1px solid var(--border)}
.modal-header h3{font-size:1.1rem;font-weight:600}
.modal-body{padding:22px}
.modal-footer{display:flex;justify-content:flex-end;gap:10px;padding:16px 22px;border-top:1px solid var(--border)}

/* Date Range Picker */
.date-range{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.date-range label{font-size:.85rem;color:var(--text-secondary);font-weight:500}
.date-range input[type="date"]{padding:7px 12px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);font-family:inherit}
.date-range input[type="date"]:focus{outline:none;border-color:var(--accent-blue)}

/* Tabs */
.tabs{display:flex;gap:4px;margin-bottom:20px;border-bottom:1px solid var(--border);padding-bottom:0}
.tab{padding:10px 20px;color:var(--text-secondary);cursor:pointer;font-weight:500;font-size:.9rem;border-bottom:2px solid transparent;transition:all var(--transition)}
.tab:hover{color:var(--text-primary)}
.tab.active{color:var(--accent-blue);border-bottom-color:var(--accent-blue)}

/* Toast */
.toast-container{position:fixed;top:20px;right:20px;z-index:2000;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 20px;border-radius:var(--radius-md);color:#fff;font-size:.88rem;font-weight:500;box-shadow:var(--shadow-md);animation:toastIn .35s ease;display:flex;align-items:center;gap:8px;min-width:280px}
.toast-success{background:linear-gradient(135deg,#10b981,#059669)}
.toast-error{background:linear-gradient(135deg,#ef4444,#dc2626)}
.toast-info{background:linear-gradient(135deg,#3b82f6,#2563eb)}
@keyframes toastIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}

/* Chart Container */
.chart-container{position:relative;height:320px;margin:16px 0}

/* Notes */
.note-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;margin-bottom:10px;transition:all var(--transition)}
.note-card:hover{border-color:var(--accent-blue)}
.note-card .note-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.note-card .note-date{font-size:.78rem;color:var(--text-muted)}
.note-card .note-title{font-weight:600;font-size:.95rem}
.note-card .note-content{color:var(--text-secondary);font-size:.88rem;line-height:1.6}
.note-scope{display:inline-block;padding:2px 8px;border-radius:10px;font-size:.7rem;font-weight:600}
.scope-daily{background:rgba(59,130,246,.15);color:var(--accent-blue)}
.scope-monthly{background:rgba(245,158,11,.15);color:var(--accent-gold)}
.scope-yearly{background:rgba(139,92,246,.15);color:var(--accent-purple)}

/* Responsive */
@media(max-width:768px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .main-content{margin-left:0;padding:16px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .mobile-toggle{display:block!important}
}
.mobile-toggle{display:none;position:fixed;top:12px;left:12px;z-index:150;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 12px;color:var(--text-primary);cursor:pointer;font-size:1.2rem}

/* Plan/Actual Grid colors */
.project-color-0{background:#1e3a5f;color:#60a5fa}
.project-color-1{background:#2d1f3d;color:#a78bfa}
.project-color-2{background:#1a3a2a;color:#6ee7b7}
.project-color-3{background:#3a2a1a;color:#fbbf24}
.project-color-4{background:#3a1a2a;color:#f87171}
.project-color-5{background:#1a2a3a;color:#67e8f9}
.project-color-6{background:#2a3a1a;color:#a3e635}
.project-color-7{background:#3a1a3a;color:#e879f9}

/* Light mode specific project colors */
body.light-theme .project-color-1{background:#dbeafe;color:#1e3a8a}
body.light-theme .project-color-2{background:#dcfce7;color:#14532d}
body.light-theme .project-color-3{background:#fef3c7;color:#78350f}
body.light-theme .project-color-4{background:#fee2e2;color:#7f1d1d}
body.light-theme .project-color-5{background:#e0e7ff;color:#3730a3}
body.light-theme .project-color-6{background:#ecfccb;color:#3f6212}
body.light-theme .project-color-7{background:#f3e8ff;color:#581c87}

.leave-cell{background:rgba(239,68,68,.1)!important;color:var(--accent-red)!important;font-style:italic}
.cell-short{display:inline-block;padding:1px 5px;border-radius:4px;font-size:.68rem;font-weight:700;background:rgba(239,68,68,.2);color:var(--accent-red);margin-left:2px;vertical-align:middle}
.cell-incomplete{background:rgba(239,68,68,.15)!important;border-bottom:2px solid rgba(239,68,68,.5)!important}

/* Loading */
.loading{display:flex;align-items:center;justify-content:center;padding:40px;color:var(--text-muted)}
.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--accent-blue);border-radius:50%;animation:spin .6s linear infinite;margin-right:10px}
@keyframes spin{to{transform:rotate(360deg)}}

@keyframes flash-update {
  0% { background-color: rgba(59, 130, 246, 0.5); }
  100% { background-color: transparent; }
}
.flash-update {
  animation: flash-update 1.5s ease-out;
}

/* Empty state */
.empty-state{text-align:center;padding:40px;color:var(--text-muted)}
.empty-state .icon{font-size:3rem;margin-bottom:12px}
.empty-state p{font-size:.95rem}

/* Chat History */
.chat-container{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;background:var(--bg-card);margin-bottom:16px;}
.chat-box{height:160px;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:8px;background:var(--bg-input);}
.chat-bubble{align-self:flex-end;background:var(--accent-blue-glow);color:var(--text-primary);padding:8px 14px;border-radius:18px 18px 2px 18px;font-size:0.88rem;max-width:85%;cursor:pointer;transition:all 0.2s;border:1px solid rgba(59,130,246,0.3);}
.chat-bubble:hover{background:var(--accent-blue);color:#fff;}
.chat-bubble-ai{align-self:flex-start;background:var(--bg-secondary);color:var(--text-secondary);padding:8px 14px;border-radius:18px 18px 18px 2px;font-size:0.85rem;max-width:85%;border:1px solid var(--border);cursor:default;}
.chat-input-wrapper{display:flex;padding:10px;background:var(--bg-card);border-top:1px solid var(--border);}
.chat-input-wrapper input{border:none;background:var(--bg-input);border-radius:var(--radius-lg);padding:10px 16px;}

/* Cell History Indicator & Modal Styles */
.spread-table td {
  position: relative;
}
.cell-history-indicator {
  position: absolute;
  top: 1px;
  right: 4px;
  font-size: 11px;
  line-height: 1;
  color: var(--accent-gold, #f59e0b);
  cursor: pointer;
  z-index: 10;
  text-shadow: 0 0 4px var(--accent-gold-glow);
  transition: transform var(--transition), color var(--transition);
}
.cell-history-indicator:hover {
  transform: scale(1.4);
  color: var(--accent-blue, #3b82f6);
}


/* History Modal CSS details */
.history-item {
  border-left: 3px solid var(--accent-blue);
  padding-left: 14px;
  margin-bottom: 16px;
  position: relative;
}
.history-item::before {
  content: '';
  position: absolute;
  left: -7px;
  top: 4px;
  width: 11px;
  height: 11px;
  background: var(--bg-card);
  border: 2px solid var(--accent-blue);
  border-radius: 50%;
}
.history-time {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 4px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.history-change {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  padding: 10px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
}
.history-from, .history-to {
  display: flex;
  align-items: center;
  gap: 8px;
}
.history-label {
  font-weight: 600;
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
}
.history-from .history-label {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-red);
}
.history-to .history-label {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
}
.history-values {
  color: var(--text-primary);
  word-break: break-all;
}
.history-no-data {
  color: var(--text-muted);
  font-style: italic;
}

/* Enforce equal, fixed column widths in spreadsheet grid */
#planTable, #actualTable {
  table-layout: fixed;
  width: 100%;
}
#planTable th.corner,
#planTable td.emp-name,
#actualTable th.corner,
#actualTable td.emp-name {
  width: 160px !important;
  min-width: 160px !important;
  max-width: 160px !important;
  box-sizing: border-box;
}
#planTable th:not(.corner),
#planTable td:not(.emp-name),
#actualTable th:not(.corner),
#actualTable td:not(.emp-name) {
  width: 140px !important;
  min-width: 140px !important;
  max-width: 140px !important;
  box-sizing: border-box;
}

/* Dedicated styles for Sub-task Modal Table */
.subtask-table-container {
  flex: 1;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-card);
}
.subtask-table {
  border-collapse: collapse;
  width: 100%;
  table-layout: fixed;
}
.subtask-table th, .subtask-table td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: center;
  font-size: .85rem;
}
.subtask-table th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  position: sticky;
  top: 0;
  z-index: 2;
  box-shadow: inset 0 -1px 0 var(--border);
}

/* Mobile bottom sheet modal styles */
@media (max-width: 768px) {
  .modal-overlay {
    align-items: flex-end !important;
  }
  .modal.modal-mobile {
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 20px 20px 0 0 !important;
    max-height: 90vh !important;
    transform: translateY(100%) scale(1) !important;
    transition: transform .3s ease-out !important;
    border-bottom: none !important;
    margin: 0 !important;
  }
  .modal-overlay.active .modal.modal-mobile {
    transform: translateY(0) scale(1) !important;
  }
}

/* Person Matrix Table */
.matrix-table {
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
}
.matrix-table th, .matrix-table td {
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.matrix-table th:first-child, .matrix-table td:first-child {
  border-left: 1px solid var(--border);
}
.matrix-table tr:first-child th {
  border-top: 1px solid var(--border);
}
.matrix-table tbody tr:hover td {
  background: rgba(59,130,246,0.06);
}
.matrix-table tbody tr:hover td.emp-name {
  background: var(--bg-card-hover) !important;
}
.subtask-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  background: rgba(59,130,246,0.1);
  transition: all 0.2s;
}
.subtask-btn:hover {
  background: rgba(59,130,246,0.25);
  transform: scale(1.15);
}



/* Monthly report (PPTX) page */
@media(max-width:1100px){.monthly-grid{grid-template-columns:1fr !important}}