:root {
  /* KV Variables */
  --purple: #6c63ff;
  --purple-dark: #5a52e0;
  --violet: #a855f7;
  --green: #10b981;
  --amber: #f59e0b;
  --red: #ef4444;
  --surface: rgba(255,255,255,0.06);
  --surface-hover: rgba(255,255,255,0.1);
  --border: rgba(255,255,255,0.1);
  --text: #f0f0ff;
  --text-sub: rgba(240,240,255,0.55);
  --radius: 18px;
  --radius-sm: 10px;

  /* GPP Variables */
  --bg-color: #0d1117;
  --panel-bg: rgba(22, 27, 34, 0.7);
  --panel-border: rgba(48, 54, 61, 0.5);
  
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  
  --accent: #58a6ff;
  --accent-hover: #3182ce;
  
  --success: #238636;
  --warning: #d29922;
  --danger: #f85149;
  
  --radius-lg: 16px;
  --radius-md: 10px;
}

body {
  background: var(--bg-color);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  margin: 0;
}

/* ============================
   BACKGROUND ORBS (KV) & GPP BG
==============================*/
body {
  background-image: 
    radial-gradient(at 0% 0%, rgba(88, 166, 255, 0.05) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(137, 87, 229, 0.05) 0px, transparent 50%);
  background-attachment: fixed;
}
.bg-orbs { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.orb {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.18;
  animation: floatOrb 12s ease-in-out infinite alternate;
}
.orb-1 { width: 600px; height: 600px; background: #6c63ff; top: -200px; left: -200px; animation-delay: 0s; }
.orb-2 { width: 500px; height: 500px; background: #a855f7; bottom: -150px; right: -150px; animation-delay: -4s; }
.orb-3 { width: 400px; height: 400px; background: #10b981; top: 50%; left: 50%; transform: translate(-50%,-50%); animation-delay: -8s; }
@keyframes floatOrb {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, 30px) scale(1.1); }
}

/* ============================
   COMMON
==============================*/
.hidden { display: none !important; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(108,99,255,0.4); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(108,99,255,0.6); }

/* ============================
   KIOTVIET STYLES
==============================*/
#app-kiotviet .container {
  position: relative; z-index: 1; max-width: 860px; margin: 0 auto; padding: 0 20px 80px;
}
#app-kiotviet .header { display: flex; align-items: center; gap: 16px; margin-bottom: 40px; }
#app-kiotviet .header-icon {
  width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
  background: rgba(108,99,255,0.15); border-radius: 16px; border: 1px solid rgba(108,99,255,0.3); flex-shrink: 0;
}
#app-kiotviet .header-title {
  font-size: 26px; font-weight: 800; background: linear-gradient(135deg, #fff 30%, #a855f7);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin:0;
}
#app-kiotviet .header-sub { font-size: 14px; color: var(--text-sub); margin-top: 2px; }

#app-kiotviet .steps-row { display: flex; align-items: center; gap: 0; margin-bottom: 32px; padding: 0 8px; }
#app-kiotviet .step { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--text-sub); transition: color .3s; }
#app-kiotviet .step.active { color: var(--text); }
#app-kiotviet .step.done { color: var(--green); }
#app-kiotviet .step-num {
  width: 28px; height: 28px; border-radius: 50%; background: rgba(255,255,255,0.08); border: 1.5px solid rgba(255,255,255,0.15);
  display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; transition: all .3s;
}
#app-kiotviet .step.active .step-num { background: linear-gradient(135deg, #6c63ff, #a855f7); border-color: transparent; color: white; }
#app-kiotviet .step.done .step-num { background: var(--green); border-color: transparent; color: white; }
#app-kiotviet .step-line { flex: 1; height: 1.5px; background: rgba(255,255,255,0.1); margin: 0 12px; }

#app-kiotviet .card-kv {
  background: rgba(255,255,255,0.04); backdrop-filter: blur(24px); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius); padding: 28px; margin-bottom: 20px; transition: all .3s;
}
#app-kiotviet .card-kv:hover { border-color: rgba(108,99,255,0.3); }
#app-kiotviet .card-header { display: flex; align-items: center; gap: 10px; margin-bottom: 22px; }
#app-kiotviet .card-icon { font-size: 22px; }
#app-kiotviet .card-header h2 { font-size: 17px; font-weight: 700; flex: 1; margin:0; }

#app-kiotviet .drop-zone {
  border: 2px dashed rgba(108,99,255,0.4); border-radius: var(--radius-sm); padding: 40px 20px;
  text-align: center; cursor: pointer; transition: all .3s; background: rgba(108,99,255,0.04);
}
#app-kiotviet .drop-zone:hover, #app-kiotviet .drop-zone.dragover { border-color: var(--purple); background: rgba(108,99,255,0.1); transform: scale(1.01); }
#app-kiotviet .drop-icon { margin-bottom: 14px; display:inline-block; }
#app-kiotviet .drop-title { font-size: 17px; font-weight: 600; margin-bottom: 4px; }
#app-kiotviet .drop-sub { color: var(--text-sub); font-size: 13px; margin-bottom: 14px; }
#app-kiotviet .btn-upload {
  display: inline-block; padding: 10px 24px; background: linear-gradient(135deg, var(--purple), var(--violet));
  color: white; font-size: 14px; font-weight: 600; border-radius: 50px; cursor: pointer; transition: all .25s; box-shadow: 0 4px 20px rgba(108,99,255,0.35);
}
#app-kiotviet .btn-upload:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(108,99,255,0.5); }
#app-kiotviet .drop-hint { font-size: 12px; color: var(--text-sub); margin-top: 12px; }

#app-kiotviet .file-loaded { margin-top: 16px; }
#app-kiotviet .file-info {
  display: flex; align-items: center; gap: 14px; background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.25);
  border-radius: var(--radius-sm); padding: 14px 18px;
}
#app-kiotviet .file-icon-wrap { font-size: 28px; }
#app-kiotviet .file-details { flex: 1; min-width: 0; }
#app-kiotviet .file-name { display: block; font-weight: 600; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#app-kiotviet .file-meta { display: block; font-size: 12px; color: var(--text-sub); margin-top: 2px; }
#app-kiotviet .btn-remove {
  background: rgba(239,68,68,0.15); border: 1px solid rgba(239,68,68,0.3); color: #ef4444; border-radius: 8px;
  width: 32px; height: 32px; font-size: 14px; cursor: pointer; transition: all .2s; flex-shrink: 0;
}
#app-kiotviet .btn-remove:hover { background: rgba(239,68,68,0.3); }

#app-kiotviet .stats-row { display: flex; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
#app-kiotviet .stat-chip { background: rgba(108,99,255,0.12); border: 1px solid rgba(108,99,255,0.25); border-radius: 50px; padding: 5px 14px; font-size: 12px; font-weight: 500; }
#app-kiotviet .stat-chip span { color: var(--purple); font-weight: 700; }

#app-kiotviet .config-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 600px) { #app-kiotviet .config-grid { grid-template-columns: 1fr; } }
#app-kiotviet .form-group-full { grid-column: 1 / -1; }
#app-kiotviet .form-label { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600; color: var(--text-sub); margin-bottom: 8px; }
#app-kiotviet .form-input {
  width: 100%; padding: 11px 14px; background: rgba(255,255,255,0.05); border: 1.5px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm); color: var(--text); font-size: 15px; transition: all .25s; color:white;
}
#app-kiotviet .form-input:focus { outline: none; border-color: var(--purple); background: rgba(108,99,255,0.06); box-shadow: 0 0 0 3px rgba(108,99,255,0.15); }
#app-kiotviet .form-input::-webkit-calendar-picker-indicator { filter: invert(1); opacity: 0.5; cursor: pointer; }
#app-kiotviet .input-with-tag { position: relative; }
#app-kiotviet .input-with-tag .form-input { padding-right: 70px; }
#app-kiotviet .input-tag { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); font-size: 12px; color: var(--green); font-weight: 600; pointer-events: none; }
#app-kiotviet .revenue-presets { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
#app-kiotviet .preset-btn {
  padding: 5px 12px; background: rgba(255,255,255,0.05); border: 1.5px solid rgba(255,255,255,0.12); border-radius: 50px;
  color: var(--text-sub); font-size: 12px; font-weight: 500; cursor: pointer; transition: all .2s;
}
#app-kiotviet .preset-btn:hover { border-color: var(--purple); color: var(--text); }
#app-kiotviet .preset-btn.active { background: linear-gradient(135deg, rgba(108,99,255,0.3), rgba(168,85,247,0.3)); border-color: var(--purple); color: white; }
#app-kiotviet .form-hint { font-size: 12px; color: var(--text-sub); margin-top: 6px; }
#app-kiotviet .dvt-priority-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 6px; }
#app-kiotviet .dvt-badge { background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.3); color: #f59e0b; border-radius: 6px; padding: 3px 10px; font-size: 12px; font-weight: 600; }
#app-kiotviet .dvt-arrow { color: var(--text-sub); font-size: 14px; }

#app-kiotviet .estimate-box { grid-column: 1 / -1; background: linear-gradient(135deg, rgba(16,185,129,0.08), rgba(108,99,255,0.08)); border: 1px solid rgba(16,185,129,0.25); border-radius: var(--radius-sm); padding: 18px 20px; }
#app-kiotviet .estimate-title { font-size: 13px; font-weight: 700; margin-bottom: 12px; color: var(--green); }
#app-kiotviet .estimate-grid { display: flex; gap: 24px; flex-wrap: wrap; }
#app-kiotviet .estimate-item { display: flex; flex-direction: column; gap: 2px; }
#app-kiotviet .estimate-val { font-size: 22px; font-weight: 800; color: white; }
#app-kiotviet .estimate-lab { font-size: 11px; color: var(--text-sub); }

#app-kiotviet .action-row { display: flex; gap: 12px; justify-content: flex-end; margin-top: 24px; flex-wrap: wrap; }
#app-kiotviet .btn-primary-kv {
  display: flex; align-items: center; gap: 8px; padding: 12px 28px; background: linear-gradient(135deg, var(--purple), var(--violet));
  color: white; font-size: 15px; font-weight: 700; border: none; border-radius: 50px; cursor: pointer; box-shadow: 0 4px 24px rgba(108,99,255,0.4); transition: all .25s;
}
#app-kiotviet .btn-primary-kv:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(108,99,255,0.55); }
#app-kiotviet .btn-primary-kv:disabled { opacity: 0.6; cursor: not-allowed; }
#app-kiotviet .btn-secondary {
  display: flex; align-items: center; gap: 8px; padding: 12px 22px; background: rgba(255,255,255,0.06); border: 1.5px solid rgba(255,255,255,0.15);
  color: var(--text); font-size: 14px; font-weight: 600; border-radius: 50px; cursor: pointer; transition: all .25s;
}
#app-kiotviet .btn-secondary:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.25); }
#app-kiotviet .btn-loader { display: flex; align-items: center; gap: 8px; }

#app-kiotviet .preview-scroll { overflow-x: auto; margin-top: 4px; max-height: 400px; overflow-y: auto; }
#app-kiotviet .preview-table { width: 100%; border-collapse: collapse; font-size: 12px; }
#app-kiotviet .preview-table th { background: rgba(108,99,255,0.2); padding: 8px 12px; text-align: left; white-space: nowrap; font-weight: 600; font-size: 11px; position: sticky; top: 0; z-index: 2; border-bottom: 1px solid rgba(108,99,255,0.3); }
#app-kiotviet .preview-table td { padding: 7px 12px; border-bottom: 1px solid rgba(255,255,255,0.05); white-space: nowrap; color: var(--text-sub); }
#app-kiotviet .preview-table tr:nth-child(even) td { background: rgba(255,255,255,0.02); }
#app-kiotviet .preview-table tr:hover td { background: rgba(108,99,255,0.06); color: var(--text); }
#app-kiotviet .preview-note { font-size: 12px; color: var(--text-sub); margin-top: 10px; text-align: right; }
#app-kiotviet .btn-close-preview { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.25); color: #ef4444; border-radius: 8px; padding: 5px 12px; font-size: 12px; font-weight: 600; cursor: pointer; transition: all .2s; }
#app-kiotviet .btn-close-preview:hover { background: rgba(239,68,68,0.25); }

#app-kiotviet .success-card { text-align: center; padding: 48px 28px; }
#app-kiotviet .success-icon { font-size: 56px; margin-bottom: 16px; }
#app-kiotviet .success-title { font-size: 24px; font-weight: 800; margin-bottom: 8px; margin-top:0; }
#app-kiotviet .success-sub { font-size: 14px; color: var(--text-sub); margin-bottom: 28px; }

#app-kiotviet .log-box { background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius-sm); overflow: hidden; margin-bottom: 20px; }
#app-kiotviet .log-header { padding: 10px 16px; background: rgba(255,255,255,0.04); font-size: 12px; font-weight: 600; color: var(--text-sub); border-bottom: 1px solid rgba(255,255,255,0.06); }
#app-kiotviet .log-content { padding: 12px 16px; font-size: 11px; font-family: 'Courier New', monospace; color: #7ee787; max-height: 160px; overflow-y: auto; line-height: 1.8; }
#app-kiotviet .log-content .log-warn { color: #f59e0b; }
#app-kiotviet .log-content .log-err { color: #ef4444; }


/* ============================
   GPP VIETTEL STYLES
==============================*/
#app-gpp .app-container { max-width: 1280px; margin: 0 auto; padding: 1.5rem; display: flex; flex-direction: column; gap: 1.5rem; }
#app-gpp .glass-panel { background: var(--panel-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid var(--panel-border); border-radius: var(--radius-lg); box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1); }
#app-gpp .main-header { padding: 1rem 1.5rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }
#app-gpp .brand { display: flex; align-items: center; gap: 0.75rem; }
#app-gpp .brand i { font-size: 2rem; }
#app-gpp .brand h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.025em; margin:0;}
#app-gpp .text-accent { color: var(--accent); }
#app-gpp .text-warning { color: var(--warning); }
#app-gpp .text-danger { color: var(--danger); }
#app-gpp .text-gradient { background: linear-gradient(to right, #58a6ff, #a371f7); -webkit-background-clip: text; color: transparent; }

#app-gpp .dir-managers { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
#app-gpp .dir-item { display: flex; align-items: center; gap: 0.5rem; font-size: 0.9rem; }
#app-gpp .dir-label { color: var(--text-secondary); }
#app-gpp .status-dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
#app-gpp .status-dot.red { background-color: var(--danger); box-shadow: 0 0 8px var(--danger); }
#app-gpp .status-dot.green { background-color: var(--success); box-shadow: 0 0 8px var(--success); }

#app-gpp .btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.6rem 1.2rem; border-radius: var(--radius-md); font-weight: 600; cursor: pointer; transition: all 0.2s ease; border: none; font-size: 0.95rem; }
#app-gpp .btn-sm { padding: 0.4rem 0.8rem; font-size: 0.85rem; }
#app-gpp .btn-lg { padding: 1rem 1.5rem; font-size: 1.1rem; border-radius: var(--radius-lg); }
#app-gpp .w-full { width: 100%; }
#app-gpp .btn-primary-gpp { background-color: var(--accent); color: #fff; }
#app-gpp .btn-primary-gpp:hover { background-color: var(--accent-hover); transform: translateY(-1px); }
#app-gpp .btn-outline { background-color: transparent; border: 1px solid var(--panel-border); color: var(--text-primary); }
#app-gpp .btn-outline:hover { background-color: rgba(255,255,255,0.05); }

#app-gpp .layout { display: grid; grid-template-columns: 200px 1fr; gap: 1.5rem; align-items: start; }
#app-gpp .nav-tabs { display: flex; flex-direction: column; padding: 0.5rem; }
#app-gpp .tab-btn { display: flex; align-items: center; gap: 0.75rem; padding: 0.8rem 1rem; border: none; background: transparent; color: var(--text-secondary); font-weight: 500; border-radius: var(--radius-md); cursor: pointer; text-align: left; transition: all 0.2s; }
#app-gpp .tab-btn i { font-size: 1.25rem; }
#app-gpp .tab-btn:hover { background: rgba(255,255,255,0.03); color: var(--text-primary); }
#app-gpp .tab-btn.active { background: rgba(88, 166, 255, 0.1); color: var(--accent); font-weight: 600; }

#app-gpp .tab-content { display: none; }
#app-gpp .tab-content.active { display: block; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }

#app-gpp .card-gpp { padding: 1.5rem; }
#app-gpp .card-title { font-size: 1.1rem; font-weight: 600; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem; margin-top:0;}
#app-gpp .form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
#app-gpp .form-group { display: flex; flex-direction: column; gap: 0.4rem; }
#app-gpp .form-group label { font-size: 0.85rem; color: var(--text-secondary); font-weight: 500; }
#app-gpp .input-modern { background: rgba(0,0,0,0.2); border: 1px solid var(--panel-border); color: var(--text-primary); padding: 0.75rem 1rem; border-radius: var(--radius-md); font-size: 0.95rem; outline: none; transition: border-color 0.2s; }
#app-gpp .input-modern:focus { border-color: var(--accent); }
#app-gpp .hint { font-size: 0.75rem; color: var(--text-secondary); }
#app-gpp .mt-4 { margin-top: 1.5rem; }
#app-gpp .mt-2 { margin-top: 0.5rem; }

#app-gpp .logs-container { background: rgba(0,0,0,0.3); border-radius: var(--radius-md); padding: 1rem; max-height: 200px; overflow-y: auto; font-size: 0.85rem; color: var(--text-secondary); }
#app-gpp .log-line { margin-bottom: 0.25rem; }
#app-gpp .log-line.success { color: var(--success); }
#app-gpp .log-line.error { color: var(--danger); }

#app-gpp .dashboard-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
#app-gpp .span-2 { grid-column: span 2; }
#app-gpp .huge-number { font-size: 2.5rem; font-weight: 800; margin: 0.5rem 0; }
#app-gpp .stats-row { display: flex; gap: 1.5rem; background: rgba(0,0,0,0.2); padding: 1rem; border-radius: var(--radius-md); }
#app-gpp .stat-box { flex: 1; display: flex; flex-direction: column; gap: 0.25rem; }
#app-gpp .stat-label { font-size: 0.85rem; color: var(--text-secondary); }
#app-gpp .stat-value { font-size: 1.25rem; }
#app-gpp .input-minimal { background: transparent; border: none; border-bottom: 1px dashed var(--text-secondary); color: var(--text-primary); font-size: 1.1rem; font-weight: 600; width: 120px; outline: none; padding: 0.2rem 0; }
#app-gpp .input-minimal:focus { border-bottom-color: var(--accent); }
#app-gpp .scrollable-list { max-height: 250px; overflow-y: auto; display: flex; flex-direction: column; gap: 0.5rem; }
#app-gpp .list-item { background: rgba(255,255,255,0.03); padding: 0.75rem; border-radius: var(--radius-sm); display: flex; justify-content: space-between; align-items: center; font-size: 0.85rem; }
#app-gpp .table-responsive { overflow-x: auto; }
#app-gpp .modern-table, #app-gpp .data-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
#app-gpp .modern-table th, #app-gpp .modern-table td, #app-gpp .data-table th, #app-gpp .data-table td { padding: 0.75rem; text-align: left; border-bottom: 1px solid var(--panel-border); }
#app-gpp .modern-table th, #app-gpp .data-table th { color: var(--text-secondary); font-weight: 500; }
#app-gpp .modern-table tbody tr:hover, #app-gpp .data-table tbody tr:hover { background: rgba(255,255,255,0.02); }
#app-gpp .text-right { text-align: right !important; }

@media (max-width: 900px) {
  #app-gpp .layout { grid-template-columns: 1fr; }
  #app-gpp .nav-tabs { flex-direction: row; overflow-x: auto; }
  #app-gpp .tab-btn { white-space: nowrap; justify-content: center; }
}
@media (max-width: 600px) {
  #app-gpp .form-grid { grid-template-columns: 1fr; }
  #app-gpp .dashboard-grid { grid-template-columns: 1fr; }
  #app-gpp .span-2 { grid-column: span 1; }
  #app-gpp .stats-row { flex-direction: column; }
  #app-gpp .dir-managers { flex-direction: column; align-items: flex-start; }
  #app-gpp .main-header { flex-direction: column; align-items: center; text-align: center; }
}

/* F12 Tab styling */
#app-f12 .card-f12 {
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 800px;
  margin: 2rem auto;
}
#app-f12 pre {
  background: rgba(0,0,0,0.4);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: 'Courier New', Courier, monospace;
  font-size: 13px;
  color: #a371f7;
  border: 1px solid rgba(255,255,255,0.1);
}