@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');

:root {
  --bg: #f5f7fa;
  --panel: #ffffff;
  --accent: #ff6b35;
  --accent-2: #4a90e2;
  --text: #2c3e50;
  --muted: #7f8c8d;
  --danger: #e74c3c;
  --border: #e1e8ed;
  --shadow: rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: #ffffff;
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 4px var(--shadow);
}

.nav {
  display: flex;
  gap: 14px;
  font-weight: 600;
  color: var(--muted);
}

.nav a {
  cursor: pointer;
}

.nav a:hover {
  color: var(--accent);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.logo-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.btn {
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  background: var(--accent);
  transition: transform 0.1s ease, opacity 0.2s ease;
}

.btn.secondary {
  background: var(--accent-2);
}

.btn.ghost {
  background: transparent;
  border: 1px solid #2d333b;
}

.btn.danger {
  background: var(--danger);
}

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

.hero {
  padding: 32px 24px 16px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
}

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 20px;
  padding: 20px;
}

.sidebar {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  min-height: calc(100vh - 100px);
  box-shadow: 0 2px 8px var(--shadow);
}

.sidebar-header {
  display: none;
}

.sidebar-logo {
  margin-bottom: 12px;
}

.sidebar-close {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.sidebar-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.side-nav {
  display: grid;
  gap: 10px;
}

.side-nav a {
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--muted);
  cursor: pointer;
}

.side-nav a.active,
.side-nav a:hover {
  background: #f8f9fa;
  color: var(--text);
}

.main {
  display: grid;
  gap: 18px;
}

.account-section {
  display: grid;
  gap: 16px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 2px 8px var(--shadow);
}

.grid {
  display: grid;
  gap: 16px;
}

.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.three {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.muted {
  color: var(--muted);
}

.stat {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pill {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  font-size: 13px;
}

.balance {
  font-size: 32px;
  font-weight: 700;
}

.bet-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.option {
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  cursor: pointer;
  background: #f8f9fa;
  transition: border 0.2s ease, transform 0.1s ease;
}

.option:hover {
  border-color: var(--accent);
}

.option.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(61, 213, 152, 0.4);
}

.dice {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.die {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, #ffffff, #f5f7fa);
  display: grid;
  place-items: center;
  font-weight: 700;
}

input[type='number'],
input[type='text'],
input[type='password'] {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text);
  font-size: 15px;
}

.input-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 10px;
  align-items: center;
}

.history-list,
.mission-list,
.bet-list {
  display: grid;
  gap: 10px;
}

.history-item,
.mission-item,
.bet-item {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #f8f9fa;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bank-list {
  display: grid;
  gap: 12px;
}

.bank-item {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #ffffff;
}

.bank-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.bank-name {
  font-weight: 700;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th,
.table td {
  border: 1px solid var(--border);
  padding: 10px;
  text-align: left;
}

.table th {
  background: #f8f9fa;
}
.table tr:nth-child(odd) {
  background: #ffffff;
}
.table tr:nth-child(even) {
  background: #f8f9fa;
}

.badge {
  padding: 6px 10px;
  border-radius: 8px;
  background: #ecf0f1;
}

.success {
  color: var(--accent);
}

.error {
  color: var(--danger);
}

.flex {
  display: flex;
  gap: 10px;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.modal {
  width: min(420px, 90vw);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
}

.auth-fullscreen {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.auth-fullscreen.show {
  display: flex;
}

.auth-card {
  width: min(420px, 90vw);
  background: #ffffff;
  border: 1px solid #2d333b;
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  display: grid;
  gap: 14px;
}

.auth-logo {
  text-align: center;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 1px;
}

.auth-tabs {
  display: flex;
  gap: 8px;
  align-items: center;
}

.auth-tab {
  flex: 1;
  padding: 10px 0;
  border-radius: 10px;
  border: 1px solid #2d333b;
  background: #f8f9fa;
  color: var(--muted);
  cursor: pointer;
  font-weight: 700;
}

.auth-tab.active {
  background: linear-gradient(135deg, #ffaa3a, #ff7a3c);
  border-color: #ff9a3c;
  color: #ffffff;
}

.auth-panel {
  display: grid;
  gap: 10px;
}

.auth-panel.hidden {
  display: none;
}

.auth-panel input {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text);
}

.modal-backdrop.show {
  display: flex;
}

/* Hamburger Menu Toggle */
.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 20px;
  padding: 0;
  transition: background 0.2s ease;
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.menu-toggle:active {
  transform: scale(0.95);
}

/* Sidebar Backdrop */
.sidebar-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  pointer-events: none;
  z-index: 80;
  transition: opacity 0.3s ease;
}

body.menu-open .sidebar-backdrop {
  opacity: 1;
  pointer-events: auto;
}

/* Mobile Styles */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  /* Topbar - chỉ hiển thị hamburger + logo */
  .topbar {
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 12px;
  }

  .topbar .logo {
    flex: 1;
    min-width: 0;
  }

  .topbar .logo div:last-child {
    font-size: 16px;
  }

  /* Ẩn user info trên mobile, trừ khi có class show-on-mobile */
  .topbar-user {
    display: none !important;
  }
  
  .topbar-user.show-on-mobile {
    display: flex !important;
  }

  /* Hiển thị hamburger trên mobile */
  .menu-toggle {
    display: inline-flex;
    order: -1;
  }

  /* Thanh game tabs - scroll ngang */
  .nav {
    order: 2;
    width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 8px;
    padding-bottom: 4px;
  }

  .nav::-webkit-scrollbar {
    display: none;
  }

  .nav a {
    flex-shrink: 0;
    padding: 8px 14px;
    font-size: 13px;
    white-space: nowrap;
    border-radius: 8px;
    transition: all 0.2s ease;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid transparent;
  }

  .nav a:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(61, 213, 152, 0.3);
  }

  .nav a.active {
    background: var(--accent);
    color: #0d1117;
    font-weight: 700;
    border-color: var(--accent);
  }

  /* Layout - sidebar ẩn, chỉ hiện main */
  .layout {
    grid-template-columns: 1fr;
    padding: 12px;
    gap: 12px;
  }

  /* Ngăn body scroll khi menu mở */
  body.menu-open {
    overflow: hidden;
  }

  /* Sidebar - overlay từ trái */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 280px;
    max-width: 85vw;
    min-height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 90;
    border-radius: 0;
    border-right: 1px solid #1f2630;
    padding: 20px 16px;
    overflow-y: auto;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.3);
  }

  body.menu-open .sidebar {
    transform: translateX(0);
  }

  /* Hiển thị sidebar header và nút đóng trên mobile */
  .sidebar-header {
    display: flex;
  }

  .sidebar-close {
    display: flex;
  }

  .sidebar-logo {
    margin-bottom: 0;
  }

  /* Main content */
  .main {
    gap: 12px;
  }

  /* Cards */
  .card {
    padding: 14px;
    border-radius: 12px;
  }

  .title-row h3 {
    font-size: 15px;
  }

  /* Tables - responsive */
  .table {
    font-size: 12px;
  }

  .table th,
  .table td {
    padding: 8px 6px;
    white-space: nowrap;
  }

  /* Wrapper cho table scroll ngang */
  .card {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Buttons */
  .btn {
    padding: 10px 14px;
    font-size: 13px;
  }

  /* Pills */
  .pill {
    font-size: 12px;
    padding: 5px 10px;
  }
}

/* Tablet adjustments */
@media (min-width: 769px) and (max-width: 1024px) {
  .layout {
    grid-template-columns: 240px 1fr;
    padding: 16px;
  }

  .nav a {
    font-size: 13px;
    padding: 8px 12px;
  }
}