/* ============================================================
   TAM QUỐC CHÍ ONLINE — Master Design System
   Classical Three Kingdoms Theme
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ── Design Tokens ── */
:root {
  /* Colors — Dark Green + Navy Base */
  --tq-bg:          #0E1A1A;
  --tq-bg-card:     #142424;
  --tq-bg-surface:  #1C2E2E;
  --tq-bg-hover:    #253838;
  --tq-bg-paper:    #E8F0E8;

  --tq-primary:     #1B4B3A;
  --tq-primary-hover: #143830;
  --tq-accent:      #C8A96E;
  --tq-accent-dim:  #9A804A;
  --tq-gold:        #D4AF37;
  --tq-gold-glow:   rgba(212, 175, 55, 0.15);

  /* Three Kingdoms Faction Colors (muted, classy) */
  --tq-thuc:        #5B8C5A;  /* 蜀漢 Thục Hán — sage green */
  --tq-thuc-dim:    #3D6B3C;
  --tq-thuc-glow:   rgba(91, 140, 90, 0.15);
  --tq-nguy:        #5A7A9B;  /* 曹魏 Tào Nguỵ — steel blue */
  --tq-nguy-dim:    #3C5A7A;
  --tq-nguy-glow:   rgba(90, 122, 155, 0.15);
  --tq-ngo:         #9B5A5A;  /* 東吳 Đông Ngô — rosewood red */
  --tq-ngo-dim:     #7A3C3C;
  --tq-ngo-glow:    rgba(155, 90, 90, 0.15);

  --tq-danger:      #8B3030;
  --tq-danger-hover:#6B1F1F;
  --tq-success:     #3A6B34;
  --tq-success-hover:#2A5020;
  --tq-warning:     #8B6914;
  --tq-info:        #3A5A7B;

  --tq-text:        #E0EAE0;
  --tq-text-dim:    #9BB8A8;
  --tq-text-muted:  #5A7A6A;
  --tq-text-inverse:#0E1A1A;

  --tq-border:      #2A4040;
  --tq-border-gold: rgba(200, 169, 110, 0.3);
  --tq-border-accent: rgba(200, 169, 110, 0.5);

  /* Typography */
  --tq-font-heading: 'Inter', 'Segoe UI', sans-serif;
  --tq-font-body:    'Inter', 'Segoe UI', sans-serif;
  --tq-font-mono:    'Fira Code', 'Consolas', monospace;

  /* Spacing */
  --tq-space-xs: 4px;
  --tq-space-sm: 8px;
  --tq-space-md: 16px;
  --tq-space-lg: 24px;
  --tq-space-xl: 32px;
  --tq-space-2xl: 48px;

  /* Radius */
  --tq-radius-sm: 4px;
  --tq-radius-md: 6px;
  --tq-radius-lg: 8px;
  --tq-radius-xl: 12px;

  /* Shadows */
  --tq-shadow-sm: 0 1px 3px rgba(0,0,0,0.25);
  --tq-shadow-md: 0 4px 12px rgba(0,0,0,0.35);
  --tq-shadow-lg: 0 8px 24px rgba(0,0,0,0.45);
  --tq-shadow-gold: 0 0 20px rgba(212,175,55,0.1);

  /* Transitions */
  --tq-transition: 0.2s ease;
  --tq-transition-slow: 0.4s ease;

  /* Layout */
  --tq-header-height: 64px;
  --tq-sidebar-width: 260px;
  --tq-max-width: 1200px;
  --tq-bottom-nav-height: 60px;
}

/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--tq-font-body);
  background: var(--tq-bg);
  color: var(--tq-text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--tq-accent);
  text-decoration: none;
  transition: color var(--tq-transition);
}
a:hover {
  color: var(--tq-gold);
}

img { max-width: 100%; height: auto; }

/* ── Typography ── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--tq-font-heading);
  color: var(--tq-accent);
  line-height: 1.3;
  font-weight: 700;
}

h1 { font-size: 2rem; letter-spacing: 0.5px; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

.tq-section-title {
  font-family: var(--tq-font-heading);
  font-size: 1.5rem;
  color: var(--tq-accent);
  text-align: center;
  margin-bottom: var(--tq-space-lg);
  position: relative;
  padding-bottom: var(--tq-space-md);
}
.tq-section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--tq-accent), transparent);
}

/* ── Layout Container ── */
.tq-container {
  max-width: var(--tq-max-width);
  margin: 0 auto;
  padding: 0 var(--tq-space-md);
}

.tq-page {
  padding-top: calc(var(--tq-header-height) + var(--tq-space-lg));
  padding-bottom: calc(var(--tq-bottom-nav-height) + var(--tq-space-xl));
  min-height: 100vh;
}

/* ── Header ── */
.tq-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--tq-header-height);
  background: linear-gradient(180deg, #0C1818 0%, rgba(14,26,26,0.96) 100%);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--tq-border-gold);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 var(--tq-space-lg);
}

.tq-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--tq-max-width);
  margin: 0 auto;
}

.tq-header-logo {
  display: flex;
  align-items: center;
  gap: var(--tq-space-sm);
}

.tq-header-logo img {
  height: 40px;
  width: auto;
}

.tq-header-logo span {
  font-family: var(--tq-font-heading);
  font-size: 1.3rem;
  color: var(--tq-accent);
  font-weight: 700;
  letter-spacing: 1px;
}

.tq-header-nav {
  display: flex;
  align-items: center;
  gap: var(--tq-space-md);
}

.tq-header-nav a {
  color: var(--tq-text-dim);
  font-size: 0.9rem;
  font-weight: 500;
  padding: var(--tq-space-xs) var(--tq-space-sm);
  border-radius: var(--tq-radius-sm);
  transition: all var(--tq-transition);
}

.tq-header-nav a:hover,
.tq-header-nav a.active {
  color: var(--tq-accent);
  background: var(--tq-gold-glow);
}

.tq-header-actions {
  display: flex;
  align-items: center;
  gap: var(--tq-space-sm);
}

/* ── Cards ── */
.tq-card {
  background: var(--tq-bg-card);
  border: 1px solid var(--tq-border);
  border-radius: var(--tq-radius-lg);
  padding: var(--tq-space-lg);
  transition: all var(--tq-transition);
}

.tq-card:hover {
  border-color: var(--tq-border-gold);
  box-shadow: var(--tq-shadow-gold);
}

.tq-card-header {
  font-family: var(--tq-font-heading);
  font-size: 1.1rem;
  color: var(--tq-accent);
  margin-bottom: var(--tq-space-md);
  padding-bottom: var(--tq-space-sm);
  border-bottom: 1px solid var(--tq-border);
}

.tq-card-gold {
  border-color: var(--tq-border-accent);
  background: linear-gradient(135deg, var(--tq-bg-card) 0%, rgba(200,169,110,0.06) 100%);
}

/* ── Buttons ── */
.tq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--tq-space-xs);
  padding: 10px 20px;
  font-family: var(--tq-font-body);
  font-size: 0.9rem;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: var(--tq-radius-md);
  cursor: pointer;
  transition: all var(--tq-transition);
  text-decoration: none;
  white-space: nowrap;
}

.tq-btn-primary {
  background: var(--tq-primary);
  color: var(--tq-text);
  border-color: var(--tq-primary);
}
.tq-btn-primary:hover {
  background: var(--tq-primary-hover);
  color: var(--tq-text);
  box-shadow: var(--tq-shadow-sm);
}

.tq-btn-accent {
  background: linear-gradient(135deg, var(--tq-accent) 0%, var(--tq-accent-dim) 100%);
  color: var(--tq-text-inverse);
  border-color: var(--tq-accent);
}
.tq-btn-accent:hover {
  box-shadow: 0 0 15px rgba(200,169,110,0.3);
  color: var(--tq-text-inverse);
  transform: translateY(-1px);
}

.tq-btn-danger {
  background: var(--tq-danger);
  color: #fff;
  border-color: var(--tq-danger);
}
.tq-btn-danger:hover {
  background: var(--tq-danger-hover);
  color: #fff;
}

.tq-btn-success {
  background: var(--tq-success);
  color: #fff;
  border-color: var(--tq-success);
}
.tq-btn-success:hover {
  background: var(--tq-success-hover);
  color: #fff;
}

.tq-btn-outline {
  background: transparent;
  color: var(--tq-accent);
  border-color: var(--tq-border-accent);
}
.tq-btn-outline:hover {
  background: var(--tq-gold-glow);
  color: var(--tq-gold);
}

.tq-btn-ghost {
  background: transparent;
  color: var(--tq-text-dim);
  border-color: transparent;
}
.tq-btn-ghost:hover {
  color: var(--tq-accent);
  background: rgba(255,255,255,0.05);
}

.tq-btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.tq-btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.tq-btn-block {
  display: flex;
  width: 100%;
}

/* ── Forms ── */
.tq-form-group {
  margin-bottom: var(--tq-space-md);
}

.tq-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--tq-text-dim);
  margin-bottom: var(--tq-space-xs);
}

.tq-input,
.tq-select,
.tq-textarea {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--tq-font-body);
  font-size: 0.9rem;
  color: var(--tq-text);
  background: var(--tq-bg);
  border: 1px solid var(--tq-border);
  border-radius: var(--tq-radius-md);
  transition: border-color var(--tq-transition), box-shadow var(--tq-transition);
  outline: none;
}

.tq-input:focus,
.tq-select:focus,
.tq-textarea:focus {
  border-color: var(--tq-accent);
  box-shadow: 0 0 0 3px var(--tq-gold-glow);
}

.tq-input::placeholder {
  color: var(--tq-text-muted);
}

.tq-textarea {
  resize: vertical;
  min-height: 100px;
}

.tq-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg fill='%23A89070' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 36px;
}

/* ── Tables ── */
.tq-table-wrapper {
  overflow-x: auto;
  border-radius: var(--tq-radius-lg);
  border: 1px solid var(--tq-border);
}

.tq-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.tq-table thead {
  background: var(--tq-bg-surface);
}

.tq-table th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  color: var(--tq-accent);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--tq-border);
}

.tq-table td {
  padding: 10px 16px;
  border-bottom: 1px solid rgba(58,50,40,0.5);
  color: var(--tq-text);
}

.tq-table tbody tr {
  transition: background var(--tq-transition);
}

.tq-table tbody tr:hover {
  background: var(--tq-bg-hover);
}

.tq-table tbody tr:last-child td {
  border-bottom: none;
}

/* ── Badges ── */
.tq-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 999px;
  letter-spacing: 0.3px;
}

.tq-badge-gold {
  background: rgba(212,175,55,0.15);
  color: var(--tq-gold);
  border: 1px solid rgba(212,175,55,0.3);
}

.tq-badge-danger {
  background: rgba(139,32,32,0.2);
  color: #E05050;
  border: 1px solid rgba(139,32,32,0.3);
}

.tq-badge-success {
  background: rgba(45,90,39,0.2);
  color: #5DAF50;
  border: 1px solid rgba(45,90,39,0.3);
}

/* ── Alerts ── */
.tq-alert {
  padding: 12px 16px;
  border-radius: var(--tq-radius-md);
  font-size: 0.9rem;
  margin-bottom: var(--tq-space-md);
  border: 1px solid;
}

.tq-alert-success {
  background: rgba(45,90,39,0.15);
  color: #6EBF60;
  border-color: rgba(45,90,39,0.3);
}

.tq-alert-error {
  background: rgba(139,32,32,0.15);
  color: #E06060;
  border-color: rgba(139,32,32,0.3);
}

.tq-alert-warning {
  background: rgba(139,105,20,0.15);
  color: #D4A020;
  border-color: rgba(139,105,20,0.3);
}

.tq-alert-info {
  background: rgba(42,74,107,0.15);
  color: #6AA0D0;
  border-color: rgba(42,74,107,0.3);
}

/* ── Progress Bar ── */
.tq-progress {
  width: 100%;
  height: 8px;
  background: var(--tq-bg);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--tq-border);
}

.tq-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--tq-primary) 0%, var(--tq-gold) 100%);
  border-radius: 999px;
  transition: width 0.6s ease;
}

/* ── Bottom Nav ── */
.tq-bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--tq-bottom-nav-height);
  background: linear-gradient(0deg, #0C1818 0%, rgba(14,26,26,0.98) 100%);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--tq-border-gold);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tq-bottom-nav-container {
  display: flex;
  align-items: center;
  justify-content: space-around;
  width: 100%;
  max-width: 500px;
}

.tq-bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--tq-text-muted);
  font-size: 0.7rem;
  padding: var(--tq-space-xs) var(--tq-space-sm);
  transition: color var(--tq-transition);
  text-decoration: none;
}

.tq-bottom-nav-item i {
  font-size: 1.2rem;
}

.tq-bottom-nav-item:hover,
.tq-bottom-nav-item.active {
  color: var(--tq-accent);
}

/* ── Grid Utilities ── */
.tq-grid {
  display: grid;
  gap: var(--tq-space-md);
}

.tq-grid-2 { grid-template-columns: repeat(2, 1fr); }
.tq-grid-3 { grid-template-columns: repeat(3, 1fr); }
.tq-grid-4 { grid-template-columns: repeat(4, 1fr); }

.tq-flex {
  display: flex;
  align-items: center;
  gap: var(--tq-space-md);
}

.tq-flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tq-flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.tq-flex-col {
  display: flex;
  flex-direction: column;
}

/* ── Stat Card (Profile/Dashboard) ── */
.tq-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--tq-space-lg);
  background: var(--tq-bg-card);
  border: 1px solid var(--tq-border);
  border-radius: var(--tq-radius-lg);
}

.tq-stat-value {
  font-family: var(--tq-font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--tq-accent);
}

.tq-stat-label {
  font-size: 0.8rem;
  color: var(--tq-text-muted);
  margin-top: var(--tq-space-xs);
}

/* ── Divider ── */
.tq-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--tq-border-gold), transparent);
  margin: var(--tq-space-lg) 0;
  border: none;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--tq-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--tq-border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--tq-text-muted);
}

/* ── Animations ── */
@keyframes tq-fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes tq-slideIn {
  from { opacity: 0; transform: translateX(-10px); }
  to   { opacity: 1; transform: translateX(0); }
}

.tq-animate-in {
  animation: tq-fadeIn 0.4s ease forwards;
}

/* ── Admin Sidebar Layout ── */
.tq-admin-layout {
  display: flex;
  min-height: 100vh;
  padding-top: var(--tq-header-height);
}

.tq-sidebar {
  width: var(--tq-sidebar-width);
  background: var(--tq-bg-card);
  border-right: 1px solid var(--tq-border);
  position: fixed;
  top: var(--tq-header-height);
  bottom: 0;
  left: 0;
  overflow-y: auto;
  z-index: 900;
}

.tq-sidebar-nav {
  padding: var(--tq-space-md) 0;
}

.tq-sidebar-label {
  padding: var(--tq-space-sm) var(--tq-space-lg);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--tq-text-muted);
}

.tq-sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--tq-space-sm);
  padding: 10px var(--tq-space-lg);
  color: var(--tq-text-dim);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--tq-transition);
  border-left: 3px solid transparent;
  text-decoration: none;
}

.tq-sidebar-item:hover {
  background: var(--tq-bg-hover);
  color: var(--tq-text);
}

.tq-sidebar-item.active {
  background: var(--tq-gold-glow);
  color: var(--tq-accent);
  border-left-color: var(--tq-accent);
}

.tq-sidebar-item i {
  width: 20px;
  text-align: center;
  font-size: 1rem;
}

.tq-admin-content {
  flex: 1;
  margin-left: var(--tq-sidebar-width);
  padding: var(--tq-space-xl);
  min-height: calc(100vh - var(--tq-header-height));
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .tq-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .tq-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --tq-header-height: 56px;
  }

  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }

  .tq-grid-2,
  .tq-grid-3,
  .tq-grid-4 { grid-template-columns: 1fr; }

  .tq-header-nav { display: none; }

  .tq-card { padding: var(--tq-space-md); }

  /* Admin responsive */
  .tq-sidebar { display: none; }
  .tq-admin-content { margin-left: 0; padding: var(--tq-space-md); }

  .tq-sidebar.open {
    display: block;
    width: 100%;
    max-width: 300px;
    box-shadow: var(--tq-shadow-lg);
  }
}

@media (max-width: 480px) {
  .tq-container { padding: 0 var(--tq-space-sm); }
  .tq-btn { padding: 8px 14px; font-size: 0.85rem; }
  .tq-table th, .tq-table td { padding: 8px 10px; font-size: 0.8rem; }
}

/* ── Selection ── */
::selection {
  background: var(--tq-accent);
  color: var(--tq-text-inverse);
}

/* ── Three Kingdoms Faction Themed Components ── */

/* Faction Buttons */
.tq-btn-thuc {
  background: linear-gradient(135deg, var(--tq-thuc) 0%, var(--tq-thuc-dim) 100%);
  color: #fff; border-color: var(--tq-thuc);
}
.tq-btn-thuc:hover { box-shadow: 0 0 15px var(--tq-thuc-glow); color: #fff; transform: translateY(-1px); }

.tq-btn-nguy {
  background: linear-gradient(135deg, var(--tq-nguy) 0%, var(--tq-nguy-dim) 100%);
  color: #fff; border-color: var(--tq-nguy);
}
.tq-btn-nguy:hover { box-shadow: 0 0 15px var(--tq-nguy-glow); color: #fff; transform: translateY(-1px); }

.tq-btn-ngo {
  background: linear-gradient(135deg, var(--tq-ngo) 0%, var(--tq-ngo-dim) 100%);
  color: #fff; border-color: var(--tq-ngo);
}
.tq-btn-ngo:hover { box-shadow: 0 0 15px var(--tq-ngo-glow); color: #fff; transform: translateY(-1px); }

/* Faction Badges */
.tq-badge-thuc { background: var(--tq-thuc-glow); color: var(--tq-thuc); border: 1px solid rgba(91,140,90,0.3); }
.tq-badge-nguy { background: var(--tq-nguy-glow); color: var(--tq-nguy); border: 1px solid rgba(90,122,155,0.3); }
.tq-badge-ngo  { background: var(--tq-ngo-glow);  color: var(--tq-ngo);  border: 1px solid rgba(155,90,90,0.3); }

/* Faction Cards */
.tq-card-thuc { border-color: rgba(91,140,90,0.4); background: linear-gradient(135deg, var(--tq-bg-card) 0%, rgba(91,140,90,0.06) 100%); }
.tq-card-thuc:hover { box-shadow: 0 0 20px var(--tq-thuc-glow); }
.tq-card-nguy { border-color: rgba(90,122,155,0.4); background: linear-gradient(135deg, var(--tq-bg-card) 0%, rgba(90,122,155,0.06) 100%); }
.tq-card-nguy:hover { box-shadow: 0 0 20px var(--tq-nguy-glow); }
.tq-card-ngo  { border-color: rgba(155,90,90,0.4);  background: linear-gradient(135deg, var(--tq-bg-card) 0%, rgba(155,90,90,0.06) 100%); }
.tq-card-ngo:hover  { box-shadow: 0 0 20px var(--tq-ngo-glow); }

/* Faction progress bar fills */
.tq-progress-thuc { background: linear-gradient(90deg, var(--tq-thuc-dim), var(--tq-thuc)); }
.tq-progress-nguy { background: linear-gradient(90deg, var(--tq-nguy-dim), var(--tq-nguy)); }
.tq-progress-ngo  { background: linear-gradient(90deg, var(--tq-ngo-dim),  var(--tq-ngo)); }

/* Header gradient with faction undertones */
.tq-header {
  background: linear-gradient(90deg, 
    rgba(61,107,60,0.12) 0%, 
    rgba(14,26,26,0.98) 25%, 
    rgba(14,26,26,0.98) 75%, 
    rgba(90,122,155,0.10) 100%
  );
}

/* Section title with faction gradient underline */
.tq-section-title::after {
  background: linear-gradient(90deg, var(--tq-thuc), var(--tq-accent), var(--tq-ngo));
  height: 2px;
}

/* Bottom nav faction gradient top border */
.tq-bottom-nav {
  border-top: 1px solid;
  border-image: linear-gradient(90deg, var(--tq-thuc-dim), var(--tq-accent-dim), var(--tq-ngo-dim)) 1;
}