/* OMNI-MARKETING-OS – UI v2 (Luxury Brown, Gold, Black & White Edition) */

:root {
  /* Hệ màu sắc Mệnh Thổ/Hỏa (Deep Earthy Brown & Gold Accent) */
  --primary: #610402;            /* Nâu đất sâu, trầm ấm và quyền lực */
  --primary-hover: #4a0301;
  --primary-soft: rgba(97, 4, 2, 0.05); /* Nền mềm ánh nâu nhạt thanh lịch */
  --primary-glow: rgba(97, 4, 2, 0.15);
  
  --accent: #fca400;             /* Vàng kim ấm áp, điểm xuyết sang trọng */
  --accent-hover: #e09200;
  
  --bg: #fcfbfa;                  /* Nền sáng ngả ấm nhẹ theo tông nâu đất, cực kỳ dịu mắt */
  
  /* Sidebar Đen Tuyền & Than Đá (Pure Black & Deep Charcoal) */
  --sidebar-bg: #121212;         /* Đen than đá cao cấp */
  --sidebar-bg-2: #000000;       /* Đen tuyền */
  --sidebar-text: #8a8a8a;
  --sidebar-text-hover: #ffffff;
  --sidebar-active-bg: linear-gradient(90deg, rgba(97, 4, 2, 0.25) 0%, rgba(97, 4, 2, 0.02) 100%);
  --sidebar-active-border: #fca400; /* Đường viền mạ vàng nổi bật trên nền đen */
  --sidebar-section: #666666;    
  
  /* Thẻ và Nội dung */
  --card-bg: #ffffff;
  --border: rgba(97, 4, 2, 0.08);           /* Viền mảnh ánh nâu đất nhẹ nhàng */
  --form-border: rgba(97, 4, 2, 0.15);
  --form-border-focus: #610402;
  --border-strong: #a3a3a3;
  
  /* Chữ sắc nét tinh tế */
  --text: #1a1a1a;               /* Đen xám sâu để văn bản dễ đọc, không bị gắt */
  --text-secondary: #404040;
  --muted: #737373;
  
  /* Trạng thái */
  --success: #15803d;            /* Xanh lá đậm cổ điển, rất hợp với tông nâu ấm */
  --danger: #b91c1c;             
  --warning: #fca400;            
  
  /* Bo góc & Đổ bóng hoàng gia */
  --radius: 12px;                
  --radius-sm: 8px;
  --shadow: 0 2px 8px rgba(97, 4, 2, 0.02), 0 4px 16px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 20px 35px -10px rgba(97, 4, 2, 0.06), 0 10px 15px -5px rgba(0, 0, 0, 0.03);
  
  /* Bố cục */
  --sidebar-width: 268px;
  --topbar-h: 60px;
  --font: "Arial", sans-serif;   /* Chuyển toàn bộ sang font chữ Arial theo yêu cầu */
  
  /* Hiệu ứng chuyển động */
  --transition: all 0.2s ease-in-out;
}

* { 
  box-sizing: border-box; 
  margin: 0; 
  padding: 0; 
}

html, body { 
  height: 100%; 
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  letter-spacing: -0.01em; /* Arial căn chỉnh khoảng cách chữ hơi khít lại sẽ sang hơn */
  -webkit-font-smoothing: antialiased;
}

a { 
  color: var(--primary); 
  text-decoration: none; 
  transition: var(--transition);
}

a:hover { 
  color: var(--primary-hover); 
}

/* LOGIN PAGE (Warm Amber Aurora Glow - Hiệu ứng cực quang hổ phách và ánh lửa ấm áp) */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(1000px 500px at 0% 0%, rgba(97, 4, 2, 0.4), transparent 50%),
    radial-gradient(800px 400px at 100% 100%, rgba(252, 164, 0, 0.15), transparent 50%),
    linear-gradient(160deg, #0d0d0d 0%, #1a0504 60%, #000000 100%);
  position: relative;
  padding: 24px;
}

.login-page .lang-switch { 
  position: absolute; 
  top: 1.5rem; 
  right: 1.5rem; 
}

.login-page .lang-switch a {
  color: #a3a3a3;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: bold;
  transition: var(--transition);
}

.login-page .lang-switch a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(252, 164, 0, 0.3);
}

.login-page .lang-switch a.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.login-box {
  background: rgba(255, 255, 255, 0.99);
  padding: 2.75rem 2.25rem;
  border-radius: var(--radius);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(97, 4, 2, 0.08);
}

.login-box .logo {
  font-size: 1.6rem;
  font-weight: bold;
  text-align: center;
  letter-spacing: -0.03em;
  color: var(--primary);
}

.login-box .tagline {
  text-align: center;
  color: var(--muted);
  font-size: .875rem;
  margin: .45rem 0 1.75rem;
}

.login-error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fee2e2;
  border-radius: 8px;
  padding: 11px 14px;
  margin-bottom: 16px;
  font-size: 13.5px;
  font-weight: bold;
}

/* KHU VỰC FORM & INPUTS */
.form-group { 
  margin-bottom: 1.25rem; 
}

.form-group label {
  display: block;
  font-size: .8rem;
  font-weight: bold;
  color: var(--text-secondary);
  margin-bottom: .45rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: .75rem .95rem;
  border: 1px solid #a2dbc5;
  border-radius: var(--radius-sm);
  font-size: .92rem;
  background: #fff;
  color: var(--text);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--form-border-focus) !important;
  box-shadow: 0 0 0 3px var(--primary-soft) !important;
}

/* HỆ THỐNG NÚT BẤM (BUTTONS) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .65rem 1.35rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: #fff;
  cursor: pointer;
  font-size: .875rem;
  font-weight: bold;
  color: var(--text-secondary);
  transition: var(--transition);
}

.btn:hover { 
  background: #fbfbfa; 
  border-color: var(--primary); 
  color: var(--primary);
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.btn.primary:hover { 
  background: var(--primary-hover); 
  color: #fff;
  box-shadow: 0 6px 16px var(--primary-glow);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(1px);
}

.btn.block { width: 100%; }
.btn.small { padding: .4rem .85rem; font-size: .78rem; }

.links { 
  margin-top: 1.25rem; 
  text-align: center; 
  font-size: .85rem; 
  color: var(--muted); 
}

.links a { 
  color: var(--primary); 
  font-weight: bold; 
}

.links a:hover {
  text-decoration: underline;
}

.lang-switch a {
  display: inline-block;
  padding: .25rem .6rem;
  margin-left: .2rem;
  border-radius: 6px;
  text-decoration: none;
  color: var(--muted);
  font-size: .75rem;
  font-weight: bold;
}

/* LAYOUT & CHUYỂN ĐỔI KHÔNG GIAN */
.app-layout { 
  min-height: 100vh; 
  background: var(--bg); 
}

/* TOPBAR GLASSMORPHISM HOÀNG GIA */
.topbar {
  height: var(--topbar-h);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1.5rem;
  background: rgba(181, 240, 201, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar .left { display: flex; align-items: center; gap: 1.5rem; }
.topbar .logo { 
  font-weight: bold; 
  font-size: 1.1rem; 
  letter-spacing: -0.03em; 
  color: var(--primary);
}

.topbar .project-selector {
  font-size: .82rem;
  color: var(--muted);
  padding: .45rem 1rem;
  background: rgba(97, 4, 2, 0.03);
  border: 1px solid rgba(97, 4, 2, 0.1);
  border-radius: 999px;
  cursor: pointer;
  transition: var(--transition);
  font-weight: bold;
}

.topbar .project-selector:hover {
  background: rgba(97, 4, 2, 0.06);
  border-color: var(--primary);
  color: var(--text);
}

.topbar .project-selector strong { color: var(--text); font-weight: bold; }
.topbar .project-selector .switch { margin-left: .25rem; color: var(--accent); }
.topbar .right { display: flex; align-items: center; gap: 1rem; }
.topbar .user { font-size: .85rem; font-weight: bold; color: var(--text-secondary); }

.main-wrapper {
  display: flex;
  min-height: calc(100vh - var(--topbar-h));
}

/* SIDEBAR LUXURY BLACK & GOLD */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: #002615;
  color: var(--sidebar-text);
  padding: 1.25rem 0 1.5rem;
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow-y: auto;
  border-right: 1px solid rgba(255, 255, 255, 0.03);
}

.sidebar nav { 
  display: flex; 
  flex-direction: column; 
  gap: 4px; 
  padding: 0 .75rem; 
}

.sidebar .section {
  font-size: 0.72rem;
  font-weight: bold;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sidebar-section);
  padding: 1.5rem .75rem .45rem;
}

.sidebar a {
  display: flex;
  align-items: center;
  gap: .65rem;
  padding: .6rem .75rem;
  border-radius: 8px;
  background: transparent;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: .875rem;
  font-weight: bold;
  border-left: 3px solid transparent;
  transition: var(--transition);
}

.sidebar a .nav-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
  width: 100%;
}

.sidebar a .nav-label {
  display: block;
  font-size: .88rem;
  font-weight: bold;
  line-height: 1.3;
  color: #b3b3b3; 
  transition: var(--transition);
}

.sidebar a .nav-desc {
  display: block;
  font-size: .68rem;
  font-weight: normal;
  opacity: 0.6;
  line-height: 1.3;
  color: #f5f1f1;
  white-space: normal;
  word-break: break-word;
}

.sidebar a:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--sidebar-text-hover);
}

.sidebar a:hover .nav-label {
  color: #ffffff;
}

/* MENU TRẠNG THÁI ACTIVE ĐƯỜNG CHỈ VIỀN VÀNG (GOLD GILDED) */
.sidebar a.active {
  background: var(--sidebar-active-bg);
  color: #ffffff !important;
  border-left-color: var(--sidebar-active-border); /* Viền vàng hoàng gia bên trái */
}

.sidebar a.active .nav-label {
  color: #ffffff;
  font-weight: bold;
}

.sidebar a.active .nav-desc {
  opacity: 0.85;
  color: #fca400; /* Mô tả sáng ánh vàng nhẹ */
}

/* NỘI DUNG CHÍNH (CONTENT) */
.content {
  flex: 1;
  padding: 1.5rem 1.75rem 2rem;
  min-width: 0;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-size: 1.6rem;
  font-weight: bold;
  letter-spacing: -0.03em;
  color: var(--text);
}

.page-header p, .page-header .subtitle {
  font-size: .875rem;
  color: var(--muted);
  margin-top: .25rem;
}

/* KPI CARDS THẢO DÃ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 960px) {
  .kpi-grid { grid-template-columns: 1fr 1fr; }
}

.kpi-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(97, 4, 2, 0.15);
}

.kpi-card .label {
  font-size: .7rem;
  font-weight: bold;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.kpi-card .value {
  font-size: 1.9rem;
  font-weight: bold;
  letter-spacing: -0.03em;
  margin: .4rem 0 .2rem;
  color: var(--text);
}

.kpi-card .value.up { color: var(--success); }
.kpi-card .value.down { color: var(--danger); }
.kpi-card .sub { font-size: .8rem; color: var(--muted); }

/* VÙNG ĐỒ THỊ (CHARTS) */
.chart-placeholder {
  background: var(--card-bg);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius);
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: .9rem;
  margin-bottom: 1.5rem;
  background-image: radial-gradient(rgba(97, 4, 2, 0.08) 1.5px, transparent 1.5px);
  background-size: 16px 16px;
}

/* CÁC BOX PHÂN KHU (SECTION BOX) */
.section-box {
  background: #e6d9c8;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.section-header h2 { 
  font-size: 1.1rem; 
  font-weight: bold; 
  color: var(--text);
  letter-spacing: -0.02em;
}

.section-header a { 
  font-size: .82rem; 
  font-weight: bold; 
  color: var(--primary); 
}

.section-header a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

.task-list, .activity-list { list-style: none; }
.task-list li, .activity-list li {
  padding: .8rem 0;
  border-bottom: 1px solid rgba(97, 4, 2, 0.04);
  font-size: .9rem;
  color: var(--text-secondary);
}

.task-list li:last-child, .activity-list li:last-child { border-bottom: none; }

/* BADGES */
.badge {
  display: inline-block;
  padding: .25rem .6rem;
  border-radius: 6px;
  font-size: .7rem;
  font-weight: bold;
  background: var(--primary-soft);
  color: var(--primary);
  margin-right: .5rem;
  letter-spacing: 0.03em;
}

.priority-high { border-left: 4px solid var(--danger); padding-left: .75rem; }
.priority-medium { border-left: 4px solid var(--warning); padding-left: .75rem; }
.priority-low { border-left: 4px solid var(--muted); padding-left: .75rem; }

/* BỐ CỤC NHÓM (GROUP LAYOUT) */
.group-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.25rem;
}

@media (max-width: 900px) {
  .group-layout { grid-template-columns: 1fr; }
}

.bot-list {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow);
}

.bot-list h3 {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: .85rem;
}

.bot-item {
  display: block;
  padding: .8rem .9rem;
  border-radius: 10px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid transparent;
  margin-bottom: .4rem;
  transition: var(--transition);
}

.bot-item:hover { 
  background: rgba(97, 4, 2, 0.02); 
  border-color: rgba(97, 4, 2, 0.1); 
}

.bot-name { font-weight: bold; font-size: .9rem; }
.bot-meta { font-size: .75rem; color: var(--muted); margin-top: .25rem; }

.tag {
  background: rgba(252, 164, 0, 0.1);
  color: #d48a00;
  padding: .15rem .45rem;
  border-radius: 4px;
  margin-left: .35rem;
  font-weight: bold;
  font-size: .68rem;
}

.bot-preview {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  color: var(--muted);
  font-weight: bold;
}

/* BOT TABS (GẠCH CHÂN VÀNG KIM) */
.bot-tabs {
  display: flex;
  gap: .35rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.25rem;
  overflow-x: auto;
}

.bot-tabs a,
.bot-tabs button,
.bot-tab {
  appearance: none;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  padding: .75rem 1.1rem;
  font-size: .875rem;
  font-weight: bold;
  color: var(--muted);
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  margin-bottom: -1.5px;
  transition: var(--transition);
}

.bot-tabs a:hover,
.bot-tabs button:hover,
.bot-tab:hover { 
  color: var(--text); 
}

.bot-tabs a.active,
.bot-tabs button.active,
.bot-tab.active {
  color: var(--primary);
  border-bottom-color: var(--accent); /* Đánh dấu tab active bằng màu Vàng ấm rực rỡ */
}

.tab-panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

/* KHU VỰC DỰ ÁN (PROJECTS) */
.projects-page .container {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.project-card:hover {
  border-color: rgba(97, 4, 2, 0.25);
  box-shadow: 0 16px 36px rgba(97, 4, 2, 0.05);
  transform: translateY(-2px);
}

.project-card h3 { 
  margin-bottom: .25rem; 
  color: var(--text);
  font-size: 1.1rem;
  font-weight: bold;
}

.project-card .domain { 
  color: var(--primary); 
  font-size: .88rem; 
  font-weight: bold; 
}

.project-card .meta,
.project-card .updated { 
  font-size: .8rem; 
  color: var(--muted); 
  margin: .5rem 0; 
}

.empty-state { 
  text-align: center; 
  padding: 4rem 2rem; 
  color: var(--muted); 
  font-weight: bold;
}

/* KHUNG HỘP THOẠI (MODAL) */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-content {
  background: white;
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  border: 1px solid rgba(97, 4, 2, 0.1);
}

.modal-content h2 { 
  margin-bottom: 1.5rem; 
  font-weight: bold; 
  letter-spacing: -0.03em;
  color: var(--text);
}

.form-row { 
display: grid; 
grid-template-columns: 1fr 2fr; /* Đổi từ 1fr 1fr thành 1fr */
gap: 1rem; 
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: .75rem;
  margin-top: 1.5rem;
}

.ok { color: var(--success); font-weight: bold; }

.page-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow);
}

.page-card h2 { 
  font-size: 1.15rem; 
  margin: 0 0 .85rem; 
  font-weight: bold; 
  color: var(--text);
  letter-spacing: -0.02em;
}

.meta-grid {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: .5rem .85rem;
  font-size: .9rem;
}

.meta-grid .k { color: var(--muted); font-weight: bold; }

/* BẢNG BIỂU (TABLES) */
.table { 
  width: 100%; 
  border-collapse: collapse; 
  font-size: .88rem; 
}

.table th, .table td {
  text-align: left;
  padding: .8rem .6rem;
  border-bottom: 1px solid rgba(97, 4, 2, 0.04);
}

.table th {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: bold;
}

.table tr:hover td {
  background: rgba(97, 4, 2, 0.01);
}

/* ĐƯỜNG CUỘN SIDEBAR */
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 99px;
}

/* ĐỒNG BỘ HÓA CÁC ĐƯỜNG FORM TRÊN TOÀN GIAO DIỆN */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
input[type="number"],
input[type="search"],
input:not([type]),
select,
textarea {
  border: 1px solid #a2dbc5 !important;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--form-border-focus) !important;
  box-shadow: 0 0 0 3px var(--primary-soft) !important;
  outline: none;
}